Compare commits
	
		
			87 Commits
		
	
	
		
			release/2.
			...
			n1.2.2
		
	
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					bdd2db60c2 | 
							
								
								
									
										1
									
								
								.gitattributes
									
									
									
									
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							@@ -1 +0,0 @@
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*.pnm -diff -text
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							@@ -6,8 +6,6 @@
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*.dylib
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*.exe
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*.exp
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*.gcda
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*.gcno
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*.h.c
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*.ilk
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*.lib
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@@ -15,7 +13,6 @@
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*.pdb
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*.so
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*.so.*
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*.swp
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*.ver
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*-example
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*-test
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@@ -27,67 +24,47 @@
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/ffprobe
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/ffserver
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/config.*
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/coverage.info
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/avversion.h
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/version.h
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/doc/*.1
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/doc/*.3
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/doc/*.html
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/doc/*.pod
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/doc/config.texi
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/doc/avoptions_codec.texi
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/doc/avoptions_format.texi
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/doc/doxy/html/
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/doc/examples/avio_dir_cmd
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/doc/examples/avio_reading
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/doc/examples/decoding_encoding
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/doc/examples/demuxing_decoding
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/doc/examples/extract_mvs
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/doc/examples/filter_audio
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/doc/examples/demuxing
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/doc/examples/filtering_audio
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/doc/examples/filtering_video
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/doc/examples/metadata
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/doc/examples/muxing
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/doc/examples/pc-uninstalled
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/doc/examples/remuxing
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/doc/examples/resampling_audio
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/doc/examples/scaling_video
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/doc/examples/transcode_aac
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/doc/examples/transcoding
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/doc/fate.txt
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/doc/doxy/html/
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/doc/print_options
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/lcov/
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/libavcodec/*_tablegen
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/libavcodec/*_tables.c
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/libavcodec/*_tables.h
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/libavutil/avconfig.h
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/libavutil/ffversion.h
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/tests/audiogen
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/tests/base64
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/tests/checkasm/checkasm
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/tests/data/
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/tests/pixfmts.mak
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/tests/test_copy.ffmeta
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/tests/tiny_psnr
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/tests/tiny_ssim
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/tests/videogen
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/tests/vsynth1/
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/tools/aviocat
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/tools/fourcc2pixfmt
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/tools/ffescape
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/tools/ffhash
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/tools/graph2dot
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/tools/ismindex
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/tools/pktdumper
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/tools/probetest
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/tools/qt-faststart
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/tools/sidxindex
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/tools/trasher
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		||||
							
								
								
									
										667
									
								
								Changelog
									
									
									
									
									
								
							
							
						
						
									
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								Changelog
									
									
									
									
									
								
							@@ -1,658 +1,6 @@
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		||||
Entries are sorted chronologically from oldest to youngest within each release,
 | 
			
		||||
releases are sorted from youngest to oldest.
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		||||
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		||||
version 2.8.7
 | 
			
		||||
- avcodec/motion_est: Attempt to fix "short data segment overflowed" on IA64
 | 
			
		||||
- avformat/ffmdec: Check pix_fmt
 | 
			
		||||
- avcodec/ttaenc: Reallocate packet if its too small
 | 
			
		||||
- pgssubdec: fix subpicture output colorspace and range
 | 
			
		||||
- avcodec/ac3dec: Reset SPX when switching from EAC3 to AC3
 | 
			
		||||
- avfilter/vf_drawtext: Check return code of load_glyph()
 | 
			
		||||
- avcodec/takdec: add code that got somehow lost in process of REing
 | 
			
		||||
- avcodec/apedec: fix decoding of stereo files with one channel full of silence
 | 
			
		||||
- avcodec/avpacket: Fix off by 5 error
 | 
			
		||||
- avcodec/h264: Fix for H.264 configuration parsing
 | 
			
		||||
- avcodec/bmp_parser: Ensure remaining_size is not too small in startcode packet crossing corner case
 | 
			
		||||
- avfilter/src_movie: fix how we check for overflows with seek_point
 | 
			
		||||
- avcodec/j2kenc: Add attribution to OpenJPEG project:
 | 
			
		||||
- avcodec/h264_slice: Check PPS more extensively when its not copied
 | 
			
		||||
- avcodec/libutvideodec: copy frame so it has reference counters when refcounted_frames is set
 | 
			
		||||
- avformat/rtpdec_jpeg: fix low contrast image on low quality setting
 | 
			
		||||
- avcodec/mjpegenc_common: Store approximate aspect if exact cannot be stored
 | 
			
		||||
- lavc/hevc: Allow arbitrary garbage in bytestream as long as at least one NAL unit is found.
 | 
			
		||||
- avcodec/resample: Remove disabled and faulty code
 | 
			
		||||
- indeo2: Fix banding artefacts
 | 
			
		||||
- indeo2data: K&R formatting cosmetics
 | 
			
		||||
- avcodec/imgconvert: Support non-planar colorspaces while padding
 | 
			
		||||
- avutil/random_seed: Add the runtime in cycles of the main loop to the entropy pool
 | 
			
		||||
- avutil/channel_layout: AV_CH_LAYOUT_6POINT1_BACK not reachable in parsing
 | 
			
		||||
- avformat/concatdec: set safe mode to enabled instead of auto
 | 
			
		||||
- avformat/utils: fix dts from pts code in compute_pkt_fields() during ascending delay
 | 
			
		||||
- avformat/rtpenc: Fix integer overflow in NTP_TO_RTP_FORMAT
 | 
			
		||||
- avformat/cache: Fix memleak of tree entries
 | 
			
		||||
- lavf/mov: downgrade sidx errors to non-fatal warnings; fixes trac #5216 (cherry picked from commit 22dbc1caaf13e4bb17c9e0164a5b1ccaf490e428)
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		||||
- lavf/mov: fix sidx with edit lists (cherry picked from commit 3617e69d50dd9dd07b5011dfb9477a9d1a630354)
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		||||
- avcodec/mjpegdec: Fix decoding slightly odd progressive jpeg
 | 
			
		||||
- libwebpenc_animencoder: print library messages in verbose log levels
 | 
			
		||||
- libwebpenc_animencoder: zero initialize the WebPAnimEncoderOptions struct
 | 
			
		||||
- doc/utils: fix typo for min() description
 | 
			
		||||
- avcodec/avpacket: clear priv in av_init_packet()
 | 
			
		||||
- swscale/utils: Fix chrSrcHSubSample for GBRAP16
 | 
			
		||||
- swscale/input: Fix GBRAP16 input
 | 
			
		||||
- postproc: fix unaligned access
 | 
			
		||||
- avutil/pixdesc: Make get_color_type() aware of CIE XYZ formats
 | 
			
		||||
- avcodec/h264: Execute error concealment before marking the frame as done.
 | 
			
		||||
- swscale/x86/output: Fix yuv2planeX_16* with unaligned destination
 | 
			
		||||
- swscale/x86/output: Move code into yuv2planeX_mainloop
 | 
			
		||||
- avutil/frame: Free destination qp_table_buf in frame_copy_props()
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		||||
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		||||
version 2.8.6
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		||||
- avcodec/jpeg2000dec: More completely check cdef
 | 
			
		||||
- avutil/opt: check for and handle errors in av_opt_set_dict2()
 | 
			
		||||
- avcodec/flacenc: fix calculation of bits required in case of custom sample rate
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		||||
- avformat: Document urls a bit
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		||||
- avformat/libquvi: Set default demuxer and protocol limitations
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		||||
- avformat/concat: Check protocol prefix
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		||||
- doc/demuxers: Document enable_drefs and use_absolute_path
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		||||
- avcodec/mjpegdec: Check for end for both bytes in unescaping
 | 
			
		||||
- avcodec/mpegvideo_enc: Check for integer overflow in ff_mpv_reallocate_putbitbuffer()
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		||||
- avformat/avformat: Replace some references to filenames by urls
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		||||
- avcodec/wmaenc: Check ff_wma_init() for failure
 | 
			
		||||
- avcodec/mpeg12enc: Move high resolution thread check to before initializing threads
 | 
			
		||||
- avformat/img2dec: Use AVOpenCallback
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		||||
- avformat/avio: Limit url option parsing to the documented cases
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		||||
- avformat/img2dec: do not interpret the filename by default if a IO context has been opened
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		||||
- avcodec/ass_split: Fix null pointer dereference in ff_ass_style_get()
 | 
			
		||||
- mov: Add an option to toggle dref opening
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		||||
- avcodec/gif: Fix lzw buffer size
 | 
			
		||||
- avcodec/put_bits: Assert buf_ptr in flush_put_bits()
 | 
			
		||||
- avcodec/tiff: Check subsample & rps values more completely
 | 
			
		||||
- swscale/swscale: Add some sanity checks for srcSlice* parameters
 | 
			
		||||
- swscale/x86/rgb2rgb_template: Fix planar2x() for short width
 | 
			
		||||
- swscale/swscale_unscaled: Fix odd height inputs for bayer_to_yv12_wrapper()
 | 
			
		||||
- swscale/swscale_unscaled: Fix odd height inputs for bayer_to_rgb24_wrapper()
 | 
			
		||||
- avcodec/aacenc: Check both channels for finiteness
 | 
			
		||||
- asfdec_o: check for too small size in asf_read_unknown
 | 
			
		||||
- asfdec_o: break if EOF is reached after asf_read_packet_header
 | 
			
		||||
- asfdec_o: make sure packet_size is non-zero before seeking
 | 
			
		||||
- asfdec_o: prevent overflow causing seekback
 | 
			
		||||
- asfdec_o: check avio_skip in asf_read_simple_index
 | 
			
		||||
- asfdec_o: reject size > INT64_MAX in asf_read_unknown
 | 
			
		||||
- asfdec_o: only set asf_pkt->data_size after sanity checks
 | 
			
		||||
- Merge commit '8375dc1dd101d51baa430f34c0bcadfa37873896'
 | 
			
		||||
- dca: fix misaligned access in avpriv_dca_convert_bitstream
 | 
			
		||||
- brstm: fix missing closing brace
 | 
			
		||||
- brstm: also allocate b->table in read_packet
 | 
			
		||||
- brstm: make sure an ADPC chunk was read for adpcm_thp
 | 
			
		||||
- vorbisdec: reject rangebits 0 with non-0 partitions
 | 
			
		||||
- vorbisdec: reject channel mapping with less than two channels
 | 
			
		||||
- ffmdec: reset packet_end in case of failure
 | 
			
		||||
- avformat/ipmovie: put video decoding_map_size into packet and use it in decoder
 | 
			
		||||
- avformat/brstm: fix overflow
 | 
			
		||||
 | 
			
		||||
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		||||
version 2.8.5
 | 
			
		||||
- avformat/hls: Even stricter URL checks
 | 
			
		||||
- avformat/hls: More strict url checks
 | 
			
		||||
- avcodec/pngenc: Fix mixed up linesizes
 | 
			
		||||
- avcodec/pngenc: Replace memcpy by av_image_copy()
 | 
			
		||||
- swscale/vscale: Check that 2 tap filters are bilinear before using bilinear code
 | 
			
		||||
- swscale: Move VScalerContext into vscale.c
 | 
			
		||||
- swscale/utils: Detect and skip unneeded sws_setColorspaceDetails() calls
 | 
			
		||||
- swscale/yuv2rgb: Increase YUV2RGB table headroom
 | 
			
		||||
- swscale/yuv2rgb: Factor YUVRGB_TABLE_LUMA_HEADROOM out
 | 
			
		||||
- avformat/hls: forbid all protocols except http(s) & file
 | 
			
		||||
- avformat/aviobuf: Fix end check in put_str16()
 | 
			
		||||
- avformat/asfenc: Check pts
 | 
			
		||||
- avcodec/mpeg4video: Check time_incr
 | 
			
		||||
- avcodec/wavpackenc: Check the number of channels
 | 
			
		||||
- avcodec/wavpackenc: Headers are per channel
 | 
			
		||||
- avcodec/aacdec_template: Check id_map
 | 
			
		||||
- avcodec/dvdec: Fix "left shift of negative value -254"
 | 
			
		||||
- avcodec/g2meet: Check for ff_els_decode_bit() failure in epic_decode_run_length()
 | 
			
		||||
- avcodec/mjpegdec: Fix negative shift
 | 
			
		||||
- avcodec/mss2: Check for repeat overflow
 | 
			
		||||
- avformat: Add integer fps from 31 to 60 to get_std_framerate()
 | 
			
		||||
- avformat/ivfenc: fix division by zero
 | 
			
		||||
- avcodec/mpegvideo_enc: Clip bits_per_raw_sample within valid range
 | 
			
		||||
- avfilter/vf_scale: set proper out frame color range
 | 
			
		||||
- avcodec/motion_est: Fix mv_penalty table size
 | 
			
		||||
- avcodec/h264_slice: Fix integer overflow in implicit weight computation
 | 
			
		||||
- swscale/utils: Use normal bilinear scaler if fast cannot be used due to tiny dimensions
 | 
			
		||||
- avcodec/put_bits: Always check buffer end before writing
 | 
			
		||||
- mjpegdec: extend check for incompatible values of s->rgb and s->ls
 | 
			
		||||
- swscale/utils: Fix intermediate format for cascaded alpha downscaling
 | 
			
		||||
- avformat/mov: Update handbrake_version threshold for full mp3 parsing
 | 
			
		||||
- x86/float_dsp: zero extend offset from ff_scalarproduct_float_sse
 | 
			
		||||
- avfilter/vf_zoompan: do not free frame we pushed to lavfi
 | 
			
		||||
- nuv: sanitize negative fps rate
 | 
			
		||||
- nutdec: reject negative value_len in read_sm_data
 | 
			
		||||
- xwddec: prevent overflow of lsize * avctx->height
 | 
			
		||||
- nutdec: only copy the header if it exists
 | 
			
		||||
- exr: fix out of bounds read in get_code
 | 
			
		||||
- on2avc: limit number of bits to 30 in get_egolomb
 | 
			
		||||
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 | 
			
		||||
version 2.8.4
 | 
			
		||||
- rawdec: only exempt BIT0 with need_copy from buffer sanity check
 | 
			
		||||
- mlvdec: check that index_entries exist
 | 
			
		||||
- avcodec/mpeg4videodec: also for empty partitioned slices
 | 
			
		||||
- avcodec/h264_refs: Fix long_idx check
 | 
			
		||||
- avcodec/h264_mc_template: prefetch list1 only if it is used in the MB
 | 
			
		||||
- avcodec/h264_slice: Simplify ref2frm indexing
 | 
			
		||||
- avfilter/vf_mpdecimate: Add missing emms_c()
 | 
			
		||||
- sonic: make sure num_taps * channels is not larger than frame_size
 | 
			
		||||
- opus_silk: fix typo causing overflow in silk_stabilize_lsf
 | 
			
		||||
- ffm: reject invalid codec_id and codec_type
 | 
			
		||||
- golomb: always check for invalid UE golomb codes in get_ue_golomb
 | 
			
		||||
- sbr_qmf_analysis: sanitize input for 32-bit imdct
 | 
			
		||||
- sbrdsp_fixed: assert that input values are in the valid range
 | 
			
		||||
- aacsbr: ensure strictly monotone time borders
 | 
			
		||||
- aacenc: update max_sfb when num_swb changes
 | 
			
		||||
- aaccoder: prevent crash of anmr coder
 | 
			
		||||
- ffmdec: reject zero-sized chunks
 | 
			
		||||
- swscale/x86/rgb2rgb_template: Fallback to mmx in interleaveBytes() if the alignment is insufficient for SSE*
 | 
			
		||||
- swscale/x86/rgb2rgb_template: Do not crash on misaligend stride
 | 
			
		||||
- avformat/mxfenc: Do not crash if there is no packet in the first stream
 | 
			
		||||
- lavf/tee: fix side data double free.
 | 
			
		||||
- avformat/hlsenc: Check the return code of avformat_write_header()
 | 
			
		||||
- avformat/mov: Enable parser for mp3s by old HandBrake
 | 
			
		||||
- avformat/mxfenc: Fix integer overflow in length computation
 | 
			
		||||
- avformat/utils: estimate_timings_from_pts - increase retry counter, fixes invalid duration for ts files with hevc codec
 | 
			
		||||
- avformat/matroskaenc: Check codecdelay before use
 | 
			
		||||
- avutil/mathematics: Fix division by 0
 | 
			
		||||
- mjpegdec: consider chroma subsampling in size check
 | 
			
		||||
- libvpxenc: remove some unused ctrl id mappings
 | 
			
		||||
- avcodec/vp3: ensure header is parsed successfully before tables
 | 
			
		||||
- avcodec/jpeg2000dec: Check bpno in decode_cblk()
 | 
			
		||||
- avcodec/pgssubdec: Fix left shift of 255 by 24 places cannot be represented in type int
 | 
			
		||||
- swscale/utils: Fix for runtime error: left shift of negative value -1
 | 
			
		||||
- avcodec/hevc: Fix integer overflow of entry_point_offset
 | 
			
		||||
- avcodec/dirac_parser: Check that there is a previous PU before accessing it
 | 
			
		||||
- avcodec/dirac_parser: Add basic validity checks for next_pu_offset and prev_pu_offset
 | 
			
		||||
- avcodec/dirac_parser: Fix potential overflows in pointer checks
 | 
			
		||||
- avcodec/wmaprodec: Check bits per sample to be within the range not causing integer overflows
 | 
			
		||||
- avcodec/wmaprodec: Fix overflow of cutoff
 | 
			
		||||
- avformat/smacker: fix integer overflow with pts_inc
 | 
			
		||||
- avcodec/vp3: Fix "runtime error: left shift of negative value"
 | 
			
		||||
- avformat/riffdec: Initialize bitrate
 | 
			
		||||
- mpegencts: Fix overflow in cbr mode period calculations
 | 
			
		||||
- avutil/timecode: Fix fps check
 | 
			
		||||
- avutil/mathematics: return INT64_MIN (=AV_NOPTS_VALUE) from av_rescale_rnd() for overflows
 | 
			
		||||
- avcodec/apedec: Check length in long_filter_high_3800()
 | 
			
		||||
- avcodec/vp3: always set pix_fmt in theora_decode_header()
 | 
			
		||||
- avcodec/mpeg4videodec: Check available data before reading custom matrix
 | 
			
		||||
- avutil/mathematics: Do not treat INT64_MIN as positive in av_rescale_rnd
 | 
			
		||||
- avutil/integer: Fix av_mod_i() with negative dividend
 | 
			
		||||
- avformat/dump: Fix integer overflow in av_dump_format()
 | 
			
		||||
- avcodec/h264_refs: Check that long references match before use
 | 
			
		||||
- avcodec/utils: Clear dimensions in ff_get_buffer() on failure
 | 
			
		||||
- avcodec/utils: Use 64bit for aspect ratio calculation in avcodec_string()
 | 
			
		||||
- avcodec/hevc: Check max ctb addresses for WPP
 | 
			
		||||
- avcodec/vp3: Clear context on reinitialization failure
 | 
			
		||||
- avcodec/hevc: allocate entries unconditionally
 | 
			
		||||
- avcodec/hevc_cabac: Fix multiple integer overflows
 | 
			
		||||
- avcodec/jpeg2000dwt: Check ndeclevels before calling dwt_encode*()
 | 
			
		||||
- avcodec/jpeg2000dwt: Check ndeclevels before calling dwt_decode*()
 | 
			
		||||
- avcodec/hevc: Check entry_point_offsets
 | 
			
		||||
- lavf/rtpenc_jpeg: Less strict check for standard Huffman tables.
 | 
			
		||||
- avcodec/ffv1dec: Clear quant_table_count if its invalid
 | 
			
		||||
- avcodec/ffv1dec: Print an error if the quant table count is invalid
 | 
			
		||||
- doc/filters/drawtext: fix centering example
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
version 2.8.3
 | 
			
		||||
- avcodec/cabac: Check initial cabac decoder state
 | 
			
		||||
- avcodec/cabac_functions: Fix "left shift of negative value -31767"
 | 
			
		||||
- avcodec/h264_slice: Limit max_contexts when slice_context_count is initialized
 | 
			
		||||
- rtmpcrypt: Do the xtea decryption in little endian mode
 | 
			
		||||
- avformat/matroskadec: Check subtitle stream before dereferencing
 | 
			
		||||
- avcodec/pngdec: Replace assert by request for sample for unsupported TRNS cases
 | 
			
		||||
- avformat/utils: Do not init parser if probing is unfinished
 | 
			
		||||
- avcodec/jpeg2000dec: Fix potential integer overflow with tile dimensions
 | 
			
		||||
- avcodec/jpeg2000: Use av_image_check_size() in ff_jpeg2000_init_component()
 | 
			
		||||
- avcodec/wmaprodec: Check for overread in decode_packet()
 | 
			
		||||
- avcodec/smacker: Check that the data size is a multiple of a sample vector
 | 
			
		||||
- avcodec/takdec: Skip last p2 sample (which is unused)
 | 
			
		||||
- avcodec/dxtory: Fix input size check in dxtory_decode_v1_410()
 | 
			
		||||
- avcodec/dxtory: Fix input size check in dxtory_decode_v1_420()
 | 
			
		||||
- avcodec/error_resilience: avoid accessing previous or next frames tables beyond height
 | 
			
		||||
- avcodec/dpx: Move need_align to act per line
 | 
			
		||||
- avcodec/flashsv: Check size before updating it
 | 
			
		||||
- avcodec/ivi: Check image dimensions
 | 
			
		||||
- avcodec/utils: Better check for channels in av_get_audio_frame_duration()
 | 
			
		||||
- avcodec/jpeg2000dec: Check for duplicate SIZ marker
 | 
			
		||||
- aacsbr: don't call sbr_dequant twice without intermediate read_sbr_data
 | 
			
		||||
- hqx: correct type and size check of info_offset
 | 
			
		||||
- mxfdec: check edit_rate also for physical_track
 | 
			
		||||
- avcodec/jpeg2000: Change coord to 32bit to support larger than 32k width or height
 | 
			
		||||
- avcodec/jpeg2000dec: Check SIZ dimensions to be within the supported range
 | 
			
		||||
- avcodec/jpeg2000: Check comp coords to be within the supported size
 | 
			
		||||
- mpegvideo: clear overread in clear_context
 | 
			
		||||
- avcodec/avrndec: Use the AVFrame format instead of the context
 | 
			
		||||
- dds: disable palette flag for compressed images
 | 
			
		||||
- dds: validate compressed source buffer size
 | 
			
		||||
- dds: validate source buffer size before copying
 | 
			
		||||
- dvdsubdec: validate offset2 similar to offset1
 | 
			
		||||
- brstm: reject negative sample rate
 | 
			
		||||
- aacps: avoid division by zero in stereo_processing
 | 
			
		||||
- softfloat: assert when the argument of av_sqrt_sf is negative
 | 
			
		||||
 | 
			
		||||
version 2.8.2
 | 
			
		||||
- various fixes in the aac_fixed decoder
 | 
			
		||||
- various fixes in softfloat
 | 
			
		||||
- swresample/resample: increase precision for compensation
 | 
			
		||||
- lavf/mov: add support for sidx fragment indexes
 | 
			
		||||
- avformat/mxfenc: Only store user comment related tags when needed
 | 
			
		||||
- tests/fate/avformat: Fix fate-lavf
 | 
			
		||||
- doc/ffmpeg: Clarify that the sdp_file option requires an rtp output.
 | 
			
		||||
- ffmpeg: Don't try and write sdp info if none of the outputs had an rtp format.
 | 
			
		||||
- apng: use correct size for output buffer
 | 
			
		||||
- jvdec: avoid unsigned overflow in comparison
 | 
			
		||||
- avcodec/jpeg2000dec: Clip all tile coordinates
 | 
			
		||||
- avcodec/microdvddec: Check for string end in 'P' case
 | 
			
		||||
- avcodec/dirac_parser: Fix undefined memcpy() use
 | 
			
		||||
- avformat/xmv: Discard remainder of packet on error
 | 
			
		||||
- avformat/xmv: factor return check out of if/else
 | 
			
		||||
- avcodec/mpeg12dec: Do not call show_bits() with invalid bits
 | 
			
		||||
- avcodec/faxcompr: Add missing runs check in decode_uncompressed()
 | 
			
		||||
- libavutil/channel_layout: Check strtol*() for failure
 | 
			
		||||
- avformat/mpegts: Only start probing data streams within probe_packets
 | 
			
		||||
- avcodec/hevc_ps: Check chroma_format_idc
 | 
			
		||||
- avcodec/ffv1dec: Check for 0 quant tables
 | 
			
		||||
- avcodec/mjpegdec: Reinitialize IDCT on BPP changes
 | 
			
		||||
- avcodec/mjpegdec: Check index in ljpeg_decode_yuv_scan() before using it
 | 
			
		||||
- avutil/file_open: avoid file handle inheritance on Windows
 | 
			
		||||
- avcodec/h264_slice: Disable slice threads if there are multiple access units in a packet
 | 
			
		||||
- avformat/hls: update cookies on setcookie response
 | 
			
		||||
- opusdec: Don't run vector_fmul_scalar on zero length arrays
 | 
			
		||||
- avcodec/opusdec: Fix extra samples read index
 | 
			
		||||
- avcodec/ffv1: Initialize vlc_state on allocation
 | 
			
		||||
- avcodec/ffv1dec: update progress in case of broken pointer chains
 | 
			
		||||
- avcodec/ffv1dec: Clear slice coordinates if they are invalid or slice header decoding fails for other reasons
 | 
			
		||||
- rtsp: Allow $ as interleaved packet indicator before a complete response header
 | 
			
		||||
- videodsp: don't overread edges in vfix3 emu_edge.
 | 
			
		||||
- avformat/mp3dec: improve junk skipping heuristic
 | 
			
		||||
- concatdec: fix file_start_time calculation regression
 | 
			
		||||
- avcodec: loongson optimize h264dsp idct and loop filter with mmi
 | 
			
		||||
- avcodec/jpeg2000dec: Clear properties in jpeg2000_dec_cleanup() too
 | 
			
		||||
- avformat/hls: add support for EXT-X-MAP
 | 
			
		||||
- avformat/hls: fix segment selection regression on track changes of live streams
 | 
			
		||||
- configure: Require libkvazaar < 0.7.
 | 
			
		||||
- avcodec/vp8: Do not use num_coeff_partitions in thread/buffer setup
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
version 2.8.1:
 | 
			
		||||
- swscale: fix ticket #4881
 | 
			
		||||
- doc: fix spelling errors
 | 
			
		||||
- hls: only seek if there is an offset
 | 
			
		||||
- asfdec: add more checks for size left in asf packet buffer
 | 
			
		||||
- asfdec: alloc enough space for storing name in asf_read_metadata_obj
 | 
			
		||||
- avcodec/pngdec: Check blend_op.
 | 
			
		||||
- h264_mp4toannexb: fix pps offfset fault when there are more than one sps in avcc
 | 
			
		||||
- avcodec/h264_mp4toannexb_bsf: Use av_freep() to free spspps_buf
 | 
			
		||||
- avformat/avidec: Workaround broken initial frame
 | 
			
		||||
- avformat/hls: fix some cases of HLS streams which require cookies
 | 
			
		||||
- avcodec/pngdec: reset has_trns after every decode_frame_png()
 | 
			
		||||
- lavf/img2dec: Fix memory leak
 | 
			
		||||
- avcodec/mp3: fix skipping zeros
 | 
			
		||||
- avformat/srtdec: make sure we probe a number
 | 
			
		||||
- configure: check for ID3D11VideoContext
 | 
			
		||||
- avformat/vobsub: compare correct packet stream IDs
 | 
			
		||||
- avformat/srtdec: more lenient first line probing
 | 
			
		||||
- avformat/srtdec: fix number check for the first character
 | 
			
		||||
- avcodec/mips: build fix for MSA 64bit
 | 
			
		||||
- avcodec/mips: build fix for MSA
 | 
			
		||||
- avformat/httpauth: Add space after commas in HTTP/RTSP auth header
 | 
			
		||||
- libavformat/hlsenc: Use of uninitialized memory unlinking old files
 | 
			
		||||
- avcodec/x86/sbrdsp: Fix using uninitialized upper 32bit of noise
 | 
			
		||||
- avcodec/ffv1dec: Fix off by 1 error in quant_table_count check
 | 
			
		||||
- avcodec/ffv1dec: Explicitly check read_quant_table() return value
 | 
			
		||||
- dnxhddata: correct weight tables
 | 
			
		||||
- dnxhddec: decode and use interlace mb flag
 | 
			
		||||
- swscale: fix ticket #4877
 | 
			
		||||
- avcodec/rangecoder: Check e
 | 
			
		||||
- avcodec/ffv1: separate slice_count from max_slice_count
 | 
			
		||||
- swscale: fix ticket 4850
 | 
			
		||||
- cmdutils: Filter dst/srcw/h
 | 
			
		||||
- avutil/log: fix zero length gnu_printf format string warning
 | 
			
		||||
- lavf/webvttenc: Require webvtt file to contain exactly one WebVTT stream.
 | 
			
		||||
- swscale/swscale: Fix "unused variable" warning
 | 
			
		||||
- avcodec/mjpegdec: Fix decoding RGBA RCT LJPEG
 | 
			
		||||
- MAINTAINERS: add 2.8, drop 2.2
 | 
			
		||||
- doc: mention libavcodec can decode Opus natively
 | 
			
		||||
- hevc: properly handle no_rasl_output_flag when removing pictures from the DPB
 | 
			
		||||
- avfilter/af_ladspa: process all channels for nb_handles > 1
 | 
			
		||||
- configure: add libsoxr to swresample's pkgconfig
 | 
			
		||||
- lavc: Fix compilation with --disable-everything --enable-parser=mpeg4video.
 | 
			
		||||
 | 
			
		||||
version 2.8:
 | 
			
		||||
- colorkey video filter
 | 
			
		||||
- BFSTM/BCSTM demuxer
 | 
			
		||||
- little-endian ADPCM_THP decoder
 | 
			
		||||
- Hap decoder and encoder
 | 
			
		||||
- DirectDraw Surface image/texture decoder
 | 
			
		||||
- ssim filter
 | 
			
		||||
- optional new ASF demuxer
 | 
			
		||||
- showvolume filter
 | 
			
		||||
- Many improvements to the JPEG 2000 decoder
 | 
			
		||||
- Go2Meeting decoding support
 | 
			
		||||
- adrawgraph audio and drawgraph video filter
 | 
			
		||||
- removegrain video filter
 | 
			
		||||
- Intel QSV-accelerated MPEG-2 video and HEVC encoding
 | 
			
		||||
- Intel QSV-accelerated MPEG-2 video and HEVC decoding
 | 
			
		||||
- Intel QSV-accelerated VC-1 video decoding
 | 
			
		||||
- libkvazaar HEVC encoder
 | 
			
		||||
- erosion, dilation, deflate and inflate video filters
 | 
			
		||||
- Dynamic Audio Normalizer as dynaudnorm filter
 | 
			
		||||
- Reverse video and areverse audio filter
 | 
			
		||||
- Random filter
 | 
			
		||||
- deband filter
 | 
			
		||||
- AAC fixed-point decoding
 | 
			
		||||
- sidechaincompress audio filter
 | 
			
		||||
- bitstream filter for converting HEVC from MP4 to Annex B
 | 
			
		||||
- acrossfade audio filter
 | 
			
		||||
- allyuv and allrgb video sources
 | 
			
		||||
- atadenoise video filter
 | 
			
		||||
- OS X VideoToolbox support
 | 
			
		||||
- aphasemeter filter
 | 
			
		||||
- showfreqs filter
 | 
			
		||||
- vectorscope filter
 | 
			
		||||
- waveform filter
 | 
			
		||||
- hstack and vstack filter
 | 
			
		||||
- Support DNx100 (1440x1080@8)
 | 
			
		||||
- VAAPI hevc hwaccel
 | 
			
		||||
- VDPAU hevc hwaccel
 | 
			
		||||
- framerate filter
 | 
			
		||||
- Switched default encoders for webm to VP9 and Opus
 | 
			
		||||
- Removed experimental flag from the JPEG 2000 encoder
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
version 2.7:
 | 
			
		||||
- FFT video filter
 | 
			
		||||
- TDSC decoder
 | 
			
		||||
- DTS lossless extension (XLL) decoding (not lossless, disabled by default)
 | 
			
		||||
- showwavespic filter
 | 
			
		||||
- DTS decoding through libdcadec
 | 
			
		||||
- Drop support for nvenc API before 5.0
 | 
			
		||||
- nvenc HEVC encoder
 | 
			
		||||
- Detelecine filter
 | 
			
		||||
- Intel QSV-accelerated H.264 encoding
 | 
			
		||||
- MMAL-accelerated H.264 decoding
 | 
			
		||||
- basic APNG encoder and muxer with default extension "apng"
 | 
			
		||||
- unpack DivX-style packed B-frames in MPEG-4 bitstream filter
 | 
			
		||||
- WebM Live Chunk Muxer
 | 
			
		||||
- nvenc level and tier options
 | 
			
		||||
- chorus filter
 | 
			
		||||
- Canopus HQ/HQA decoder
 | 
			
		||||
- Automatically rotate videos based on metadata in ffmpeg
 | 
			
		||||
- improved Quickdraw compatibility
 | 
			
		||||
- VP9 high bit-depth and extended colorspaces decoding support
 | 
			
		||||
- WebPAnimEncoder API when available for encoding and muxing WebP
 | 
			
		||||
- Direct3D11-accelerated decoding
 | 
			
		||||
- Support Secure Transport
 | 
			
		||||
- Multipart JPEG demuxer
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
version 2.6:
 | 
			
		||||
- nvenc encoder
 | 
			
		||||
- 10bit spp filter
 | 
			
		||||
- colorlevels filter
 | 
			
		||||
- RIFX format for *.wav files
 | 
			
		||||
- RTP/mpegts muxer
 | 
			
		||||
- non continuous cache protocol support
 | 
			
		||||
- tblend filter
 | 
			
		||||
- cropdetect support for non 8bpp, absolute (if limit >= 1) and relative (if limit < 1.0) threshold
 | 
			
		||||
- Camellia symmetric block cipher
 | 
			
		||||
- OpenH264 encoder wrapper
 | 
			
		||||
- VOC seeking support
 | 
			
		||||
- Closed caption Decoder
 | 
			
		||||
- fspp, uspp, pp7 MPlayer postprocessing filters ported to native filters
 | 
			
		||||
- showpalette filter
 | 
			
		||||
- Twofish symmetric block cipher
 | 
			
		||||
- Support DNx100 (960x720@8)
 | 
			
		||||
- eq2 filter ported from libmpcodecs as eq filter
 | 
			
		||||
- removed libmpcodecs
 | 
			
		||||
- Changed default DNxHD colour range in QuickTime .mov derivatives to mpeg range
 | 
			
		||||
- ported softpulldown filter from libmpcodecs as repeatfields filter
 | 
			
		||||
- dcshift filter
 | 
			
		||||
- RTP depacketizer for loss tolerant payload format for MP3 audio (RFC 5219)
 | 
			
		||||
- RTP depacketizer for AC3 payload format (RFC 4184)
 | 
			
		||||
- palettegen and paletteuse filters
 | 
			
		||||
- VP9 RTP payload format (draft 0) experimental depacketizer
 | 
			
		||||
- RTP depacketizer for DV (RFC 6469)
 | 
			
		||||
- DXVA2-accelerated HEVC decoding
 | 
			
		||||
- AAC ELD 480 decoding
 | 
			
		||||
- Intel QSV-accelerated H.264 decoding
 | 
			
		||||
- DSS SP decoder and DSS demuxer
 | 
			
		||||
- Fix stsd atom corruption in DNxHD QuickTimes
 | 
			
		||||
- Canopus HQX decoder
 | 
			
		||||
- RTP depacketization of T.140 text (RFC 4103)
 | 
			
		||||
- Port MIPS optimizations to 64-bit
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
version 2.5:
 | 
			
		||||
- HEVC/H.265 RTP payload format (draft v6) packetizer
 | 
			
		||||
- SUP/PGS subtitle demuxer
 | 
			
		||||
- ffprobe -show_pixel_formats option
 | 
			
		||||
- CAST128 symmetric block cipher, ECB mode
 | 
			
		||||
- STL subtitle demuxer and decoder
 | 
			
		||||
- libutvideo YUV 4:2:2 10bit support
 | 
			
		||||
- XCB-based screen-grabber
 | 
			
		||||
- UDP-Lite support (RFC 3828)
 | 
			
		||||
- xBR scaling filter
 | 
			
		||||
- AVFoundation screen capturing support
 | 
			
		||||
- ffserver supports codec private options
 | 
			
		||||
- creating DASH compatible fragmented MP4, MPEG-DASH segmenting muxer
 | 
			
		||||
- WebP muxer with animated WebP support
 | 
			
		||||
- zygoaudio decoding support
 | 
			
		||||
- APNG demuxer
 | 
			
		||||
- postproc visualization support
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
version 2.4:
 | 
			
		||||
- Icecast protocol
 | 
			
		||||
- ported lenscorrection filter from frei0r filter
 | 
			
		||||
- large optimizations in dctdnoiz to make it usable
 | 
			
		||||
- ICY metadata are now requested by default with the HTTP protocol
 | 
			
		||||
- support for using metadata in stream specifiers in fftools
 | 
			
		||||
- LZMA compression support in TIFF decoder
 | 
			
		||||
- H.261 RTP payload format (RFC 4587) depacketizer and experimental packetizer
 | 
			
		||||
- HEVC/H.265 RTP payload format (draft v6) depacketizer
 | 
			
		||||
- added codecview filter to visualize information exported by some codecs
 | 
			
		||||
- Matroska 3D support thorugh side data
 | 
			
		||||
- HTML generation using texi2html is deprecated in favor of makeinfo/texi2any
 | 
			
		||||
- silenceremove filter
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
version 2.3:
 | 
			
		||||
- AC3 fixed-point decoding
 | 
			
		||||
- shuffleplanes filter
 | 
			
		||||
- subfile protocol
 | 
			
		||||
- Phantom Cine demuxer
 | 
			
		||||
- replaygain data export
 | 
			
		||||
- VP7 video decoder
 | 
			
		||||
- Alias PIX image encoder and decoder
 | 
			
		||||
- Improvements to the BRender PIX image decoder
 | 
			
		||||
- Improvements to the XBM decoder
 | 
			
		||||
- QTKit input device
 | 
			
		||||
- improvements to OpenEXR image decoder
 | 
			
		||||
- support decoding 16-bit RLE SGI images
 | 
			
		||||
- GDI screen grabbing for Windows
 | 
			
		||||
- alternative rendition support for HTTP Live Streaming
 | 
			
		||||
- AVFoundation input device
 | 
			
		||||
- Direct Stream Digital (DSD) decoder
 | 
			
		||||
- Magic Lantern Video (MLV) demuxer
 | 
			
		||||
- On2 AVC (Audio for Video) decoder
 | 
			
		||||
- support for decoding through DXVA2 in ffmpeg
 | 
			
		||||
- libbs2b-based stereo-to-binaural audio filter
 | 
			
		||||
- libx264 reference frames count limiting depending on level
 | 
			
		||||
- native Opus decoder
 | 
			
		||||
- display matrix export and rotation API
 | 
			
		||||
- WebVTT encoder
 | 
			
		||||
- showcqt multimedia filter
 | 
			
		||||
- zoompan filter
 | 
			
		||||
- signalstats filter
 | 
			
		||||
- hqx filter (hq2x, hq3x, hq4x)
 | 
			
		||||
- flanger filter
 | 
			
		||||
- Image format auto-detection
 | 
			
		||||
- LRC demuxer and muxer
 | 
			
		||||
- Samba protocol (via libsmbclient)
 | 
			
		||||
- WebM DASH Manifest muxer
 | 
			
		||||
- libfribidi support in drawtext
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
version 2.2:
 | 
			
		||||
 | 
			
		||||
- HNM version 4 demuxer and video decoder
 | 
			
		||||
- Live HDS muxer
 | 
			
		||||
- setsar/setdar filters now support variables in ratio expressions
 | 
			
		||||
- elbg filter
 | 
			
		||||
- string validation in ffprobe
 | 
			
		||||
- support for decoding through VDPAU in ffmpeg (the -hwaccel option)
 | 
			
		||||
- complete Voxware MetaSound decoder
 | 
			
		||||
- remove mp3_header_compress bitstream filter
 | 
			
		||||
- Windows resource files for shared libraries
 | 
			
		||||
- aeval filter
 | 
			
		||||
- stereoscopic 3d metadata handling
 | 
			
		||||
- WebP encoding via libwebp
 | 
			
		||||
- ATRAC3+ decoder
 | 
			
		||||
- VP8 in Ogg demuxing
 | 
			
		||||
- side & metadata support in NUT
 | 
			
		||||
- framepack filter
 | 
			
		||||
- XYZ12 rawvideo support in NUT
 | 
			
		||||
- Exif metadata support in WebP decoder
 | 
			
		||||
- OpenGL device
 | 
			
		||||
- Use metadata_header_padding to control padding in ID3 tags (currently used in
 | 
			
		||||
  MP3, AIFF, and OMA files), FLAC header, and the AVI "junk" block.
 | 
			
		||||
- Mirillis FIC video decoder
 | 
			
		||||
- Support DNx444
 | 
			
		||||
- libx265 encoder
 | 
			
		||||
- dejudder filter
 | 
			
		||||
- Autodetect VDA like all other hardware accelerations
 | 
			
		||||
- aliases and defaults for Ogg subtypes (opus, spx)
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
version 2.1:
 | 
			
		||||
 | 
			
		||||
- aecho filter
 | 
			
		||||
- perspective filter ported from libmpcodecs
 | 
			
		||||
- ffprobe -show_programs option
 | 
			
		||||
- compand filter
 | 
			
		||||
- RTMP seek support
 | 
			
		||||
- when transcoding with ffmpeg (i.e. not streamcopying), -ss is now accurate
 | 
			
		||||
  even when used as an input option. Previous behavior can be restored with
 | 
			
		||||
  the -noaccurate_seek option.
 | 
			
		||||
- ffmpeg -t option can now be used for inputs, to limit the duration of
 | 
			
		||||
  data read from an input file
 | 
			
		||||
- incomplete Voxware MetaSound decoder
 | 
			
		||||
- read EXIF metadata from JPEG
 | 
			
		||||
- DVB teletext decoder
 | 
			
		||||
- phase filter ported from libmpcodecs
 | 
			
		||||
- w3fdif filter
 | 
			
		||||
- Opus support in Matroska
 | 
			
		||||
- FFV1 version 1.3 is stable and no longer experimental
 | 
			
		||||
- FFV1: YUVA(444,422,420) 9, 10 and 16 bit support
 | 
			
		||||
- changed DTS stream id in lavf mpeg ps muxer from 0x8a to 0x88, to be
 | 
			
		||||
  more consistent with other muxers.
 | 
			
		||||
- adelay filter
 | 
			
		||||
- pullup filter ported from libmpcodecs
 | 
			
		||||
- ffprobe -read_intervals option
 | 
			
		||||
- Lossless and alpha support for WebP decoder
 | 
			
		||||
- Error Resilient AAC syntax (ER AAC LC) decoding
 | 
			
		||||
- Low Delay AAC (ER AAC LD) decoding
 | 
			
		||||
- mux chapters in ASF files
 | 
			
		||||
- SFTP protocol (via libssh)
 | 
			
		||||
- libx264: add ability to encode in YUVJ422P and YUVJ444P
 | 
			
		||||
- Fraps: use BT.709 colorspace by default for yuv, as reference fraps decoder does
 | 
			
		||||
- make decoding alpha optional for prores, ffv1 and vp6 by setting
 | 
			
		||||
  the skip_alpha flag.
 | 
			
		||||
- ladspa wrapper filter
 | 
			
		||||
- native VP9 decoder
 | 
			
		||||
- dpx parser
 | 
			
		||||
- max_error_rate parameter in ffmpeg
 | 
			
		||||
- PulseAudio output device
 | 
			
		||||
- ReplayGain scanner
 | 
			
		||||
- Enhanced Low Delay AAC (ER AAC ELD) decoding (no LD SBR support)
 | 
			
		||||
- Linux framebuffer output device
 | 
			
		||||
- HEVC decoder
 | 
			
		||||
- raw HEVC, HEVC in MOV/MP4, HEVC in Matroska, HEVC in MPEG-TS demuxing
 | 
			
		||||
- mergeplanes filter
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
version 2.0:
 | 
			
		||||
 | 
			
		||||
- curves filter
 | 
			
		||||
- reference-counting for AVFrame and AVPacket data
 | 
			
		||||
- ffmpeg now fails when input options are used for output file
 | 
			
		||||
  or vice versa
 | 
			
		||||
- support for Monkey's Audio versions from 3.93
 | 
			
		||||
- perms and aperms filters
 | 
			
		||||
- audio filtering support in ffplay
 | 
			
		||||
- 10% faster aac encoding on x86 and MIPS
 | 
			
		||||
- sine audio filter source
 | 
			
		||||
- WebP demuxing and decoding support
 | 
			
		||||
- ffmpeg options -filter_script and -filter_complex_script, which allow a
 | 
			
		||||
  filtergraph description to be read from a file
 | 
			
		||||
- OpenCL support
 | 
			
		||||
- audio phaser filter
 | 
			
		||||
- separatefields filter
 | 
			
		||||
- libquvi demuxer
 | 
			
		||||
- uniform options syntax across all filters
 | 
			
		||||
- telecine filter
 | 
			
		||||
- interlace filter
 | 
			
		||||
- smptehdbars source
 | 
			
		||||
- inverse telecine filters (fieldmatch and decimate)
 | 
			
		||||
- colorbalance filter
 | 
			
		||||
- colorchannelmixer filter
 | 
			
		||||
- The matroska demuxer can now output proper verbatim ASS packets. It will
 | 
			
		||||
  become the default at the next libavformat major bump.
 | 
			
		||||
- decent native animated GIF encoding
 | 
			
		||||
- asetrate filter
 | 
			
		||||
- interleave filter
 | 
			
		||||
- timeline editing with filters
 | 
			
		||||
- vidstabdetect and vidstabtransform filters for video stabilization using
 | 
			
		||||
  the vid.stab library
 | 
			
		||||
- astats filter
 | 
			
		||||
- trim and atrim filters
 | 
			
		||||
- ffmpeg -t and -ss (output-only) options are now sample-accurate when
 | 
			
		||||
  transcoding audio
 | 
			
		||||
- Matroska muxer can now put the index at the beginning of the file.
 | 
			
		||||
- extractplanes filter
 | 
			
		||||
- avectorscope filter
 | 
			
		||||
- ADPCM DTK decoder
 | 
			
		||||
- ADP demuxer
 | 
			
		||||
- RSD demuxer
 | 
			
		||||
- RedSpark demuxer
 | 
			
		||||
- ADPCM IMA Radical decoder
 | 
			
		||||
- zmq filters
 | 
			
		||||
- DCT denoiser filter (dctdnoiz)
 | 
			
		||||
- Wavelet denoiser filter ported from libmpcodecs as owdenoise (formerly "ow")
 | 
			
		||||
- Apple Intermediate Codec decoder
 | 
			
		||||
- Escape 130 video decoder
 | 
			
		||||
- FTP protocol support
 | 
			
		||||
- V4L2 output device
 | 
			
		||||
- 3D LUT filter (lut3d)
 | 
			
		||||
- SMPTE 302M audio encoder
 | 
			
		||||
- support for slice multithreading in libavfilter
 | 
			
		||||
- Hald CLUT support (generation and filtering)
 | 
			
		||||
- VC-1 interlaced B-frame support
 | 
			
		||||
- support for WavPack muxing (raw and in Matroska)
 | 
			
		||||
- XVideo output device
 | 
			
		||||
- vignette filter
 | 
			
		||||
- True Audio (TTA) encoder
 | 
			
		||||
- Go2Webinar decoder
 | 
			
		||||
- mcdeint filter ported from libmpcodecs
 | 
			
		||||
- sab filter ported from libmpcodecs
 | 
			
		||||
- ffprobe -show_chapters option
 | 
			
		||||
- WavPack encoding through libwavpack
 | 
			
		||||
- rotate filter
 | 
			
		||||
- spp filter ported from libmpcodecs
 | 
			
		||||
- libgme support
 | 
			
		||||
- psnr filter
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
version 1.2:
 | 
			
		||||
 | 
			
		||||
- VDPAU hardware acceleration through normal hwaccel
 | 
			
		||||
@@ -719,7 +67,7 @@ version 1.1:
 | 
			
		||||
- JSON captions for TED talks decoding support
 | 
			
		||||
- SOX Resampler support in libswresample
 | 
			
		||||
- aselect filter
 | 
			
		||||
- SGI RLE 8-bit / Silicon Graphics RLE 8-bit video decoder
 | 
			
		||||
- SGI RLE 8-bit decoder
 | 
			
		||||
- Silicon Graphics Motion Video Compressor 1 & 2 decoder
 | 
			
		||||
- Silicon Graphics Movie demuxer
 | 
			
		||||
- apad filter
 | 
			
		||||
@@ -763,9 +111,7 @@ version 1.0:
 | 
			
		||||
- RTMPE protocol support
 | 
			
		||||
- RTMPTE protocol support
 | 
			
		||||
- showwaves and showspectrum filter
 | 
			
		||||
- LucasArts SMUSH SANM playback support
 | 
			
		||||
- LucasArts SMUSH VIMA audio decoder (ADPCM)
 | 
			
		||||
- LucasArts SMUSH demuxer
 | 
			
		||||
- LucasArts SMUSH playback support
 | 
			
		||||
- SAMI, RealText and SubViewer demuxers and decoders
 | 
			
		||||
- Heart Of Darkness PAF playback support
 | 
			
		||||
- iec61883 device
 | 
			
		||||
@@ -889,7 +235,6 @@ version 0.10:
 | 
			
		||||
- ffwavesynth decoder
 | 
			
		||||
- aviocat tool
 | 
			
		||||
- ffeval tool
 | 
			
		||||
- support encoding and decoding 4-channel SGI images
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
version 0.9:
 | 
			
		||||
@@ -938,7 +283,7 @@ easier to use. The changes are:
 | 
			
		||||
          all the stream in the first input file, except for the second audio
 | 
			
		||||
          stream'.
 | 
			
		||||
    * There is a new option -c (or -codec) for choosing the decoder/encoder to
 | 
			
		||||
      use, which makes it possible to precisely specify target stream(s) consistently with
 | 
			
		||||
      use, which allows to precisely specify target stream(s) consistently with
 | 
			
		||||
      other options. E.g. -c:v lib264 sets the codec for all video streams, -c:a:0
 | 
			
		||||
      libvorbis sets the codec for the first audio stream and -c copy copies all
 | 
			
		||||
      the streams without reencoding. Old -vcodec/-acodec/-scodec options are now
 | 
			
		||||
@@ -1190,7 +535,7 @@ version 0.6:
 | 
			
		||||
- LPCM support in MPEG-TS (HDMV RID as found on Blu-ray disks)
 | 
			
		||||
- WMA Pro decoder
 | 
			
		||||
- Core Audio Format demuxer
 | 
			
		||||
- ATRAC1 decoder
 | 
			
		||||
- Atrac1 decoder
 | 
			
		||||
- MD STUDIO audio demuxer
 | 
			
		||||
- RF64 support in WAV demuxer
 | 
			
		||||
- MPEG-4 Audio Lossless Coding (ALS) decoder
 | 
			
		||||
@@ -1290,7 +635,7 @@ version 0.5:
 | 
			
		||||
- MXF demuxer
 | 
			
		||||
- VC-1/WMV3/WMV9 video decoder
 | 
			
		||||
- MacIntel support
 | 
			
		||||
- AviSynth support
 | 
			
		||||
- AVISynth support
 | 
			
		||||
- VMware video decoder
 | 
			
		||||
- VP5 video decoder
 | 
			
		||||
- VP6 video decoder
 | 
			
		||||
@@ -1318,7 +663,7 @@ version 0.5:
 | 
			
		||||
- Interplay C93 demuxer and video decoder
 | 
			
		||||
- Bethsoft VID demuxer and video decoder
 | 
			
		||||
- CRYO APC demuxer
 | 
			
		||||
- ATRAC3 decoder
 | 
			
		||||
- Atrac3 decoder
 | 
			
		||||
- V.Flash PTX decoder
 | 
			
		||||
- RoQ muxer, RoQ audio encoder
 | 
			
		||||
- Renderware TXD demuxer and decoder
 | 
			
		||||
 
 | 
			
		||||
							
								
								
									
										15
									
								
								INSTALL
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										15
									
								
								INSTALL
									
									
									
									
									
										Normal file
									
								
							@@ -0,0 +1,15 @@
 | 
			
		||||
 | 
			
		||||
1) Type './configure' to create the configuration. A list of configure
 | 
			
		||||
options is printed by running 'configure --help'.
 | 
			
		||||
 | 
			
		||||
'configure' can be launched from a directory different from the FFmpeg
 | 
			
		||||
sources to build the objects out of tree. To do this, use an absolute
 | 
			
		||||
path when launching 'configure', e.g. '/ffmpegdir/ffmpeg/configure'.
 | 
			
		||||
 | 
			
		||||
2) Then type 'make' to build FFmpeg. GNU Make 3.81 or later is required.
 | 
			
		||||
 | 
			
		||||
3) Type 'make install' to install all binaries and libraries you built.
 | 
			
		||||
 | 
			
		||||
NOTICE
 | 
			
		||||
 | 
			
		||||
 - Non system dependencies (e.g. libx264, libvpx) are disabled by default.
 | 
			
		||||
							
								
								
									
										17
									
								
								INSTALL.md
									
									
									
									
									
								
							
							
						
						
									
										17
									
								
								INSTALL.md
									
									
									
									
									
								
							@@ -1,17 +0,0 @@
 | 
			
		||||
#Installing FFmpeg:
 | 
			
		||||
 | 
			
		||||
1. Type `./configure` to create the configuration. A list of configure
 | 
			
		||||
options is printed by running `configure --help`.
 | 
			
		||||
 | 
			
		||||
    `configure` can be launched from a directory different from the FFmpeg
 | 
			
		||||
sources to build the objects out of tree. To do this, use an absolute
 | 
			
		||||
path when launching `configure`, e.g. `/ffmpegdir/ffmpeg/configure`.
 | 
			
		||||
 | 
			
		||||
2. Then type `make` to build FFmpeg. GNU Make 3.81 or later is required.
 | 
			
		||||
 | 
			
		||||
3. Type `make install` to install all binaries and libraries you built.
 | 
			
		||||
 | 
			
		||||
NOTICE
 | 
			
		||||
------
 | 
			
		||||
 | 
			
		||||
 - Non system dependencies (e.g. libx264, libvpx) are disabled by default.
 | 
			
		||||
							
								
								
									
										91
									
								
								LICENSE
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										91
									
								
								LICENSE
									
									
									
									
									
										Normal file
									
								
							@@ -0,0 +1,91 @@
 | 
			
		||||
FFmpeg:
 | 
			
		||||
 | 
			
		||||
Most files in FFmpeg are under the GNU Lesser General Public License version 2.1
 | 
			
		||||
or later (LGPL v2.1+). Read the file COPYING.LGPLv2.1 for details. Some other
 | 
			
		||||
files have MIT/X11/BSD-style licenses. In combination the LGPL v2.1+ applies to
 | 
			
		||||
FFmpeg.
 | 
			
		||||
 | 
			
		||||
Some optional parts of FFmpeg are licensed under the GNU General Public License
 | 
			
		||||
version 2 or later (GPL v2+). See the file COPYING.GPLv2 for details. None of
 | 
			
		||||
these parts are used by default, you have to explicitly pass --enable-gpl to
 | 
			
		||||
configure to activate them. In this case, FFmpeg's license changes to GPL v2+.
 | 
			
		||||
 | 
			
		||||
Specifically, the GPL parts of FFmpeg are
 | 
			
		||||
 | 
			
		||||
- libpostproc
 | 
			
		||||
- libmpcodecs
 | 
			
		||||
- optional x86 optimizations in the files
 | 
			
		||||
  libavcodec/x86/idct_mmx.c
 | 
			
		||||
- libutvideo encoding/decoding wrappers in
 | 
			
		||||
  libavcodec/libutvideo*.cpp
 | 
			
		||||
- the X11 grabber in libavdevice/x11grab.c
 | 
			
		||||
- the swresample test app in
 | 
			
		||||
  libswresample/swresample-test.c
 | 
			
		||||
- the texi2pod.pl tool
 | 
			
		||||
- the following filters in libavfilter:
 | 
			
		||||
    - f_ebur128.c
 | 
			
		||||
    - vf_blackframe.c
 | 
			
		||||
    - vf_boxblur.c
 | 
			
		||||
    - vf_colormatrix.c
 | 
			
		||||
    - vf_cropdetect.c
 | 
			
		||||
    - vf_decimate.c
 | 
			
		||||
    - vf_delogo.c
 | 
			
		||||
    - vf_geq.c
 | 
			
		||||
    - vf_histeq.c
 | 
			
		||||
    - vf_hqdn3d.c
 | 
			
		||||
    - vf_hue.c
 | 
			
		||||
    - vf_kerndeint.c
 | 
			
		||||
    - vf_mp.c
 | 
			
		||||
    - vf_noise.c
 | 
			
		||||
    - vf_pp.c
 | 
			
		||||
    - vf_smartblur.c
 | 
			
		||||
    - vf_stereo3d.c
 | 
			
		||||
    - vf_super2xsai.c
 | 
			
		||||
    - vf_tinterlace.c
 | 
			
		||||
    - vf_yadif.c
 | 
			
		||||
    - vsrc_mptestsrc.c
 | 
			
		||||
 | 
			
		||||
Should you, for whatever reason, prefer to use version 3 of the (L)GPL, then
 | 
			
		||||
the configure parameter --enable-version3 will activate this licensing option
 | 
			
		||||
for you. Read the file COPYING.LGPLv3 or, if you have enabled GPL parts,
 | 
			
		||||
COPYING.GPLv3 to learn the exact legal terms that apply in this case.
 | 
			
		||||
 | 
			
		||||
There are a handful of files under other licensing terms, namely:
 | 
			
		||||
 | 
			
		||||
* The files libavcodec/jfdctfst.c, libavcodec/jfdctint_template.c and
 | 
			
		||||
  libavcodec/jrevdct.c are taken from libjpeg, see the top of the files for
 | 
			
		||||
  licensing details. Specifically note that you must credit the IJG in the
 | 
			
		||||
  documentation accompanying your program if you only distribute executables.
 | 
			
		||||
  You must also indicate any changes including additions and deletions to
 | 
			
		||||
  those three files in the documentation.
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
external libraries
 | 
			
		||||
==================
 | 
			
		||||
 | 
			
		||||
FFmpeg can be combined with a number of external libraries, which sometimes
 | 
			
		||||
affect the licensing of binaries resulting from the combination.
 | 
			
		||||
 | 
			
		||||
compatible libraries
 | 
			
		||||
--------------------
 | 
			
		||||
 | 
			
		||||
The libcdio, libx264, libxavs and libxvid libraries are under GPL. When
 | 
			
		||||
combining them with FFmpeg, FFmpeg needs to be licensed as GPL as well by
 | 
			
		||||
passing --enable-gpl to configure.
 | 
			
		||||
 | 
			
		||||
The OpenCORE and VisualOn libraries are under the Apache License 2.0. That
 | 
			
		||||
license is incompatible with the LGPL v2.1 and the GPL v2, but not with
 | 
			
		||||
version 3 of those licenses. So to combine these libraries with FFmpeg, the
 | 
			
		||||
license version needs to be upgraded by passing --enable-version3 to configure.
 | 
			
		||||
 | 
			
		||||
incompatible libraries
 | 
			
		||||
----------------------
 | 
			
		||||
 | 
			
		||||
The Fraunhofer AAC library, FAAC and aacplus are under licenses which
 | 
			
		||||
are incompatible with the GPLv2 and v3. We do not know for certain if their
 | 
			
		||||
licenses are compatible with the LGPL.
 | 
			
		||||
If you wish to enable these libraries, pass --enable-nonfree to configure.
 | 
			
		||||
But note that if you enable any of these libraries the resulting binary will
 | 
			
		||||
be under a complex license mix that is more restrictive than the LGPL and that
 | 
			
		||||
may result in additional obligations. It is possible that these
 | 
			
		||||
restrictions cause the resulting binary to be unredistributeable.
 | 
			
		||||
							
								
								
									
										113
									
								
								LICENSE.md
									
									
									
									
									
								
							
							
						
						
									
										113
									
								
								LICENSE.md
									
									
									
									
									
								
							@@ -1,113 +0,0 @@
 | 
			
		||||
#FFmpeg:
 | 
			
		||||
 | 
			
		||||
Most files in FFmpeg are under the GNU Lesser General Public License version 2.1
 | 
			
		||||
or later (LGPL v2.1+). Read the file `COPYING.LGPLv2.1` for details. Some other
 | 
			
		||||
files have MIT/X11/BSD-style licenses. In combination the LGPL v2.1+ applies to
 | 
			
		||||
FFmpeg.
 | 
			
		||||
 | 
			
		||||
Some optional parts of FFmpeg are licensed under the GNU General Public License
 | 
			
		||||
version 2 or later (GPL v2+). See the file `COPYING.GPLv2` for details. None of
 | 
			
		||||
these parts are used by default, you have to explicitly pass `--enable-gpl` to
 | 
			
		||||
configure to activate them. In this case, FFmpeg's license changes to GPL v2+.
 | 
			
		||||
 | 
			
		||||
Specifically, the GPL parts of FFmpeg are:
 | 
			
		||||
 | 
			
		||||
- libpostproc
 | 
			
		||||
- optional x86 optimizations in the files
 | 
			
		||||
  - `libavcodec/x86/flac_dsp_gpl.asm`
 | 
			
		||||
  - `libavcodec/x86/idct_mmx.c`
 | 
			
		||||
  - `libavfilter/x86/vf_removegrain.asm`
 | 
			
		||||
- libutvideo encoding/decoding wrappers in
 | 
			
		||||
  `libavcodec/libutvideo*.cpp`
 | 
			
		||||
- the X11 grabber in `libavdevice/x11grab.c`
 | 
			
		||||
- the swresample test app in
 | 
			
		||||
  `libswresample/swresample-test.c`
 | 
			
		||||
- the `texi2pod.pl` tool
 | 
			
		||||
- the following filters in libavfilter:
 | 
			
		||||
    - `f_ebur128.c`
 | 
			
		||||
    - `vf_blackframe.c`
 | 
			
		||||
    - `vf_boxblur.c`
 | 
			
		||||
    - `vf_colormatrix.c`
 | 
			
		||||
    - `vf_cover_rect.c`
 | 
			
		||||
    - `vf_cropdetect.c`
 | 
			
		||||
    - `vf_delogo.c`
 | 
			
		||||
    - `vf_eq.c`
 | 
			
		||||
    - `vf_find_rect.c`
 | 
			
		||||
    - `vf_fspp.c`
 | 
			
		||||
    - `vf_geq.c`
 | 
			
		||||
    - `vf_histeq.c`
 | 
			
		||||
    - `vf_hqdn3d.c`
 | 
			
		||||
    - `vf_interlace.c`
 | 
			
		||||
    - `vf_kerndeint.c`
 | 
			
		||||
    - `vf_mcdeint.c`
 | 
			
		||||
    - `vf_mpdecimate.c`
 | 
			
		||||
    - `vf_owdenoise.c`
 | 
			
		||||
    - `vf_perspective.c`
 | 
			
		||||
    - `vf_phase.c`
 | 
			
		||||
    - `vf_pp.c`
 | 
			
		||||
    - `vf_pp7.c`
 | 
			
		||||
    - `vf_pullup.c`
 | 
			
		||||
    - `vf_sab.c`
 | 
			
		||||
    - `vf_smartblur.c`
 | 
			
		||||
    - `vf_repeatfields.c`
 | 
			
		||||
    - `vf_spp.c`
 | 
			
		||||
    - `vf_stereo3d.c`
 | 
			
		||||
    - `vf_super2xsai.c`
 | 
			
		||||
    - `vf_tinterlace.c`
 | 
			
		||||
    - `vf_uspp.c`
 | 
			
		||||
    - `vsrc_mptestsrc.c`
 | 
			
		||||
 | 
			
		||||
Should you, for whatever reason, prefer to use version 3 of the (L)GPL, then
 | 
			
		||||
the configure parameter `--enable-version3` will activate this licensing option
 | 
			
		||||
for you. Read the file `COPYING.LGPLv3` or, if you have enabled GPL parts,
 | 
			
		||||
`COPYING.GPLv3` to learn the exact legal terms that apply in this case.
 | 
			
		||||
 | 
			
		||||
There are a handful of files under other licensing terms, namely:
 | 
			
		||||
 | 
			
		||||
* The files `libavcodec/jfdctfst.c`, `libavcodec/jfdctint_template.c` and
 | 
			
		||||
  `libavcodec/jrevdct.c` are taken from libjpeg, see the top of the files for
 | 
			
		||||
  licensing details. Specifically note that you must credit the IJG in the
 | 
			
		||||
  documentation accompanying your program if you only distribute executables.
 | 
			
		||||
  You must also indicate any changes including additions and deletions to
 | 
			
		||||
  those three files in the documentation.
 | 
			
		||||
* `tests/reference.pnm` is under the expat license.
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
external libraries
 | 
			
		||||
==================
 | 
			
		||||
 | 
			
		||||
FFmpeg can be combined with a number of external libraries, which sometimes
 | 
			
		||||
affect the licensing of binaries resulting from the combination.
 | 
			
		||||
 | 
			
		||||
compatible libraries
 | 
			
		||||
--------------------
 | 
			
		||||
 | 
			
		||||
The following libraries are under GPL:
 | 
			
		||||
- frei0r
 | 
			
		||||
- libcdio
 | 
			
		||||
- libutvideo
 | 
			
		||||
- libvidstab
 | 
			
		||||
- libx264
 | 
			
		||||
- libx265
 | 
			
		||||
- libxavs
 | 
			
		||||
- libxvid
 | 
			
		||||
 | 
			
		||||
When combining them with FFmpeg, FFmpeg needs to be licensed as GPL as well by
 | 
			
		||||
passing `--enable-gpl` to configure.
 | 
			
		||||
 | 
			
		||||
The OpenCORE and VisualOn libraries are under the Apache License 2.0. That
 | 
			
		||||
license is incompatible with the LGPL v2.1 and the GPL v2, but not with
 | 
			
		||||
version 3 of those licenses. So to combine these libraries with FFmpeg, the
 | 
			
		||||
license version needs to be upgraded by passing `--enable-version3` to configure.
 | 
			
		||||
 | 
			
		||||
incompatible libraries
 | 
			
		||||
----------------------
 | 
			
		||||
 | 
			
		||||
The Fraunhofer AAC library, FAAC and aacplus are under licenses which
 | 
			
		||||
are incompatible with the GPLv2 and v3. We do not know for certain if their
 | 
			
		||||
licenses are compatible with the LGPL.
 | 
			
		||||
If you wish to enable these libraries, pass `--enable-nonfree` to configure.
 | 
			
		||||
But note that if you enable any of these libraries the resulting binary will
 | 
			
		||||
be under a complex license mix that is more restrictive than the LGPL and that
 | 
			
		||||
may result in additional obligations. It is possible that these
 | 
			
		||||
restrictions cause the resulting binary to be unredistributeable.
 | 
			
		||||
							
								
								
									
										219
									
								
								MAINTAINERS
									
									
									
									
									
								
							
							
						
						
									
										219
									
								
								MAINTAINERS
									
									
									
									
									
								
							@@ -7,13 +7,14 @@ FFmpeg code.
 | 
			
		||||
Please try to keep entries where you are the maintainer up to date!
 | 
			
		||||
 | 
			
		||||
Names in () mean that the maintainer currently has no time to maintain the code.
 | 
			
		||||
A (CC <address>) after the name means that the maintainer prefers to be CC-ed on
 | 
			
		||||
patches and related discussions.
 | 
			
		||||
A CC after the name means that the maintainer prefers to be CC-ed on patches
 | 
			
		||||
and related discussions.
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
Project Leader
 | 
			
		||||
==============
 | 
			
		||||
 | 
			
		||||
Michael Niedermayer
 | 
			
		||||
  final design decisions
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
@@ -30,7 +31,7 @@ ffprobe:
 | 
			
		||||
  ffprobe.c                             Stefano Sabatini
 | 
			
		||||
 | 
			
		||||
ffserver:
 | 
			
		||||
  ffserver.c                            Reynaldo H. Verdejo Pinochet
 | 
			
		||||
  ffserver.c, ffserver.h                Baptiste Coudurier
 | 
			
		||||
 | 
			
		||||
Commandline utility code:
 | 
			
		||||
  cmdutils.c, cmdutils.h                Michael Niedermayer
 | 
			
		||||
@@ -42,26 +43,16 @@ QuickTime faststart:
 | 
			
		||||
Miscellaneous Areas
 | 
			
		||||
===================
 | 
			
		||||
 | 
			
		||||
documentation                           Stefano Sabatini, Mike Melanson, Timothy Gu, Lou Logan
 | 
			
		||||
build system (configure, makefiles)     Diego Biurrun, Mans Rullgard
 | 
			
		||||
project server                          Árpád Gereöffy, Michael Niedermayer, Reimar Doeffinger, Alexander Strasser, Lou Logan
 | 
			
		||||
documentation                           Mike Melanson
 | 
			
		||||
website                                 Robert Swain, Lou Logan
 | 
			
		||||
build system (configure,Makefiles)      Diego Biurrun, Mans Rullgard
 | 
			
		||||
project server                          Árpád Gereöffy, Michael Niedermayer, Reimar Döffinger
 | 
			
		||||
mailinglists                            Michael Niedermayer, Baptiste Coudurier, Lou Logan
 | 
			
		||||
presets                                 Robert Swain
 | 
			
		||||
metadata subsystem                      Aurelien Jacobs
 | 
			
		||||
release management                      Michael Niedermayer
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
Communication
 | 
			
		||||
=============
 | 
			
		||||
 | 
			
		||||
website                                 Deby Barbara Lepage
 | 
			
		||||
fate.ffmpeg.org                         Timothy Gu
 | 
			
		||||
Trac bug tracker                        Alexander Strasser, Michael Niedermayer, Carl Eugen Hoyos, Lou Logan
 | 
			
		||||
mailing lists                           Michael Niedermayer, Baptiste Coudurier, Lou Logan
 | 
			
		||||
Google+                                 Paul B Mahol, Michael Niedermayer, Alexander Strasser
 | 
			
		||||
Twitter                                 Lou Logan, Reynaldo H. Verdejo Pinochet
 | 
			
		||||
Launchpad                               Timothy Gu
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
libavutil
 | 
			
		||||
=========
 | 
			
		||||
 | 
			
		||||
@@ -71,24 +62,11 @@ Internal Interfaces:
 | 
			
		||||
  libavutil/common.h                    Michael Niedermayer
 | 
			
		||||
 | 
			
		||||
Other:
 | 
			
		||||
  bprint                                Nicolas George
 | 
			
		||||
  bswap.h
 | 
			
		||||
  des                                   Reimar Doeffinger
 | 
			
		||||
  dynarray.h                            Nicolas George
 | 
			
		||||
  eval.c, eval.h                        Michael Niedermayer
 | 
			
		||||
  float_dsp                             Loren Merritt
 | 
			
		||||
  hash                                  Reimar Doeffinger
 | 
			
		||||
  intfloat*                             Michael Niedermayer
 | 
			
		||||
  integer.c, integer.h                  Michael Niedermayer
 | 
			
		||||
  lzo                                   Reimar Doeffinger
 | 
			
		||||
  mathematics.c, mathematics.h          Michael Niedermayer
 | 
			
		||||
  mem.c, mem.h                          Michael Niedermayer
 | 
			
		||||
  opencl.c, opencl.h                    Wei Gao
 | 
			
		||||
  opt.c, opt.h                          Michael Niedermayer
 | 
			
		||||
  rational.c, rational.h                Michael Niedermayer
 | 
			
		||||
  rc4                                   Reimar Doeffinger
 | 
			
		||||
  ripemd.c, ripemd.h                    James Almer
 | 
			
		||||
  timecode                              Clément Bœsch
 | 
			
		||||
  mathematics.c, mathematics.h          Michael Niedermayer
 | 
			
		||||
  integer.c, integer.h                  Michael Niedermayer
 | 
			
		||||
  bswap.h
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
libavcodec
 | 
			
		||||
@@ -99,6 +77,10 @@ Generic Parts:
 | 
			
		||||
    avcodec.h                           Michael Niedermayer
 | 
			
		||||
  utility code:
 | 
			
		||||
    utils.c                             Michael Niedermayer
 | 
			
		||||
    mem.c                               Michael Niedermayer
 | 
			
		||||
    opt.c, opt.h                        Michael Niedermayer
 | 
			
		||||
  arithmetic expression evaluator:
 | 
			
		||||
    eval.c                              Michael Niedermayer
 | 
			
		||||
  audio and video frame extraction:
 | 
			
		||||
    parser.c                            Michael Niedermayer
 | 
			
		||||
  bitstream reading:
 | 
			
		||||
@@ -129,15 +111,11 @@ Generic Parts:
 | 
			
		||||
    libpostproc/*                       Michael Niedermayer
 | 
			
		||||
  table generation:
 | 
			
		||||
    tableprint.c, tableprint.h          Reimar Doeffinger
 | 
			
		||||
  fixed point FFT:
 | 
			
		||||
    fft*                                Zeljko Lukac
 | 
			
		||||
  Text Subtitles                        Clément Bœsch
 | 
			
		||||
 | 
			
		||||
Codecs:
 | 
			
		||||
  4xm.c                                 Michael Niedermayer
 | 
			
		||||
  8bps.c                                Roberto Togni
 | 
			
		||||
  8svx.c                                Jaikrishnan Menon
 | 
			
		||||
  aacenc*, aaccoder.c                   Rostislav Pehlivanov
 | 
			
		||||
  aasc.c                                Kostya Shishkov
 | 
			
		||||
  ac3*                                  Justin Ruggles
 | 
			
		||||
  alacenc.c                             Jaikrishnan Menon
 | 
			
		||||
@@ -146,17 +124,14 @@ Codecs:
 | 
			
		||||
  ass*                                  Aurelien Jacobs
 | 
			
		||||
  asv*                                  Michael Niedermayer
 | 
			
		||||
  atrac3*                               Benjamin Larsson
 | 
			
		||||
  atrac3plus*                           Maxim Poliakovski
 | 
			
		||||
  bgmc.c, bgmc.h                        Thilo Borgmann
 | 
			
		||||
  bink.c                                Kostya Shishkov
 | 
			
		||||
  binkaudio.c                           Peter Ross
 | 
			
		||||
  bmp.c                                 Mans Rullgard, Kostya Shishkov
 | 
			
		||||
  cavs*                                 Stefan Gehrer
 | 
			
		||||
  cdxl.c                                Paul B Mahol
 | 
			
		||||
  celp_filters.*                        Vitor Sessak
 | 
			
		||||
  cdxl.c                                Paul B Mahol
 | 
			
		||||
  cinepak.c                             Roberto Togni
 | 
			
		||||
  cinepakenc.c                          Rl / Aetey G.T. AB
 | 
			
		||||
  ccaption_dec.c                        Anshul Maheshwari
 | 
			
		||||
  cljr                                  Alex Beregszaszi
 | 
			
		||||
  cllc.c                                Derek Buitenhuis
 | 
			
		||||
  cook.c, cookdata.h                    Benjamin Larsson
 | 
			
		||||
@@ -166,26 +141,21 @@ Codecs:
 | 
			
		||||
  dca.c                                 Kostya Shishkov, Benjamin Larsson
 | 
			
		||||
  dnxhd*                                Baptiste Coudurier
 | 
			
		||||
  dpcm.c                                Mike Melanson
 | 
			
		||||
  dss_sp.c                              Oleksij Rempel, Michael Niedermayer
 | 
			
		||||
  dv.c                                  Roman Shaposhnik
 | 
			
		||||
  dvbsubdec.c                           Anshul Maheshwari
 | 
			
		||||
  dxa.c                                 Kostya Shishkov
 | 
			
		||||
  dv.c                                  Roman Shaposhnik
 | 
			
		||||
  eacmv*, eaidct*, eat*                 Peter Ross
 | 
			
		||||
  evrc*                                 Paul B Mahol
 | 
			
		||||
  exif.c, exif.h                        Thilo Borgmann
 | 
			
		||||
  ffv1*                                 Michael Niedermayer
 | 
			
		||||
  ffv1.c                                Michael Niedermayer
 | 
			
		||||
  ffwavesynth.c                         Nicolas George
 | 
			
		||||
  fic.c                                 Derek Buitenhuis
 | 
			
		||||
  flac*                                 Justin Ruggles
 | 
			
		||||
  flashsv*                              Benjamin Larsson
 | 
			
		||||
  flicvideo.c                           Mike Melanson
 | 
			
		||||
  g722.c                                Martin Storsjo
 | 
			
		||||
  g726.c                                Roman Shaposhnik
 | 
			
		||||
  gifdec.c                              Baptiste Coudurier
 | 
			
		||||
  h264*                                 Loren Merritt, Michael Niedermayer
 | 
			
		||||
  h261*                                 Michael Niedermayer
 | 
			
		||||
  h263*                                 Michael Niedermayer
 | 
			
		||||
  h264*                                 Loren Merritt, Michael Niedermayer
 | 
			
		||||
  huffyuv*                              Michael Niedermayer, Christophe Gisquet
 | 
			
		||||
  huffyuv.c                             Michael Niedermayer
 | 
			
		||||
  idcinvideo.c                          Mike Melanson
 | 
			
		||||
  imc*                                  Benjamin Larsson
 | 
			
		||||
  indeo2*                               Kostya Shishkov
 | 
			
		||||
@@ -193,15 +163,13 @@ Codecs:
 | 
			
		||||
  interplayvideo.c                      Mike Melanson
 | 
			
		||||
  ivi*                                  Kostya Shishkov
 | 
			
		||||
  jacosub*                              Clément Bœsch
 | 
			
		||||
  jpeg2000*                             Nicolas Bertrand
 | 
			
		||||
  jpeg_ls.c                             Kostya Shishkov
 | 
			
		||||
  jvdec.c                               Peter Ross
 | 
			
		||||
  kmvc.c                                Kostya Shishkov
 | 
			
		||||
  lcl*.c                                Roberto Togni, Reimar Doeffinger
 | 
			
		||||
  libcelt_dec.c                         Nicolas George
 | 
			
		||||
  libdirac*                             David Conrad
 | 
			
		||||
  libgsm.c                              Michel Bardiaux
 | 
			
		||||
  libkvazaar.c                          Arttu Ylä-Outinen
 | 
			
		||||
  libdirac*                             David Conrad
 | 
			
		||||
  libopenjpeg.c                         Jaikrishnan Menon
 | 
			
		||||
  libopenjpegenc.c                      Michael Bradshaw
 | 
			
		||||
  libschroedinger*                      David Conrad
 | 
			
		||||
@@ -209,11 +177,8 @@ Codecs:
 | 
			
		||||
  libtheoraenc.c                        David Conrad
 | 
			
		||||
  libutvideo*                           Derek Buitenhuis
 | 
			
		||||
  libvorbis.c                           David Conrad
 | 
			
		||||
  libvpx*                               James Zern
 | 
			
		||||
  libx264.c                             Mans Rullgard, Jason Garrett-Glaser
 | 
			
		||||
  libx265.c                             Derek Buitenhuis
 | 
			
		||||
  libxavs.c                             Stefan Gehrer
 | 
			
		||||
  libzvbi-teletextdec.c                 Marton Balint
 | 
			
		||||
  libx264.c                             Mans Rullgard, Jason Garrett-Glaser
 | 
			
		||||
  loco.c                                Kostya Shishkov
 | 
			
		||||
  lzo.h, lzo.c                          Reimar Doeffinger
 | 
			
		||||
  mdec.c                                Michael Niedermayer
 | 
			
		||||
@@ -224,13 +189,11 @@ Codecs:
 | 
			
		||||
  mpc*                                  Kostya Shishkov
 | 
			
		||||
  mpeg12.c, mpeg12data.h                Michael Niedermayer
 | 
			
		||||
  mpegvideo.c, mpegvideo.h              Michael Niedermayer
 | 
			
		||||
  mqc*                                  Nicolas Bertrand
 | 
			
		||||
  msmpeg4.c, msmpeg4data.h              Michael Niedermayer
 | 
			
		||||
  msrle.c                               Mike Melanson
 | 
			
		||||
  msvideo1.c                            Mike Melanson
 | 
			
		||||
  nellymoserdec.c                       Benjamin Larsson
 | 
			
		||||
  nuv.c                                 Reimar Doeffinger
 | 
			
		||||
  nvenc.c                               Timo Rothenpieler
 | 
			
		||||
  paf.*                                 Paul B Mahol
 | 
			
		||||
  pcx.c                                 Ivo van Poorten
 | 
			
		||||
  pgssubdec.c                           Reimar Doeffinger
 | 
			
		||||
@@ -239,7 +202,6 @@ Codecs:
 | 
			
		||||
  qdm2.c, qdm2data.h                    Roberto Togni, Benjamin Larsson
 | 
			
		||||
  qdrw.c                                Kostya Shishkov
 | 
			
		||||
  qpeg.c                                Kostya Shishkov
 | 
			
		||||
  qsv*                                  Ivan Uskov
 | 
			
		||||
  qtrle.c                               Mike Melanson
 | 
			
		||||
  ra144.c, ra144.h, ra288.c, ra288.h    Roberto Togni
 | 
			
		||||
  resample2.c                           Michael Niedermayer
 | 
			
		||||
@@ -248,12 +210,11 @@ Codecs:
 | 
			
		||||
  rtjpeg.c, rtjpeg.h                    Reimar Doeffinger
 | 
			
		||||
  rv10.c                                Michael Niedermayer
 | 
			
		||||
  rv3*                                  Kostya Shishkov
 | 
			
		||||
  rv4*                                  Kostya Shishkov, Christophe Gisquet
 | 
			
		||||
  rv4*                                  Kostya Shishkov
 | 
			
		||||
  s3tc*                                 Ivo van Poorten
 | 
			
		||||
  smacker.c                             Kostya Shishkov
 | 
			
		||||
  smc.c                                 Mike Melanson
 | 
			
		||||
  smvjpegdec.c                          Ash Hughes
 | 
			
		||||
  snow*                                 Michael Niedermayer, Loren Merritt
 | 
			
		||||
  snow.c                                Michael Niedermayer, Loren Merritt
 | 
			
		||||
  sonic.c                               Alex Beregszaszi
 | 
			
		||||
  srt*                                  Aurelien Jacobs
 | 
			
		||||
  sunrast.c                             Ivo van Poorten
 | 
			
		||||
@@ -266,24 +227,22 @@ Codecs:
 | 
			
		||||
  truespeech.c                          Kostya Shishkov
 | 
			
		||||
  tscc.c                                Kostya Shishkov
 | 
			
		||||
  tta.c                                 Alex Beregszaszi, Jaikrishnan Menon
 | 
			
		||||
  ttaenc.c                              Paul B Mahol
 | 
			
		||||
  txd.c                                 Ivo van Poorten
 | 
			
		||||
  ulti*                                 Kostya Shishkov
 | 
			
		||||
  v410*.c                               Derek Buitenhuis
 | 
			
		||||
  vb.c                                  Kostya Shishkov
 | 
			
		||||
  vble.c                                Derek Buitenhuis
 | 
			
		||||
  vc1*                                  Kostya Shishkov, Christophe Gisquet
 | 
			
		||||
  vc1*                                  Kostya Shishkov
 | 
			
		||||
  vcr1.c                                Michael Niedermayer
 | 
			
		||||
  vda_h264_dec.c                        Xidorn Quan
 | 
			
		||||
  vima.c                                Paul B Mahol
 | 
			
		||||
  vmnc.c                                Kostya Shishkov
 | 
			
		||||
  vorbisdec.c                           Denes Balatoni, David Conrad
 | 
			
		||||
  vorbisenc.c                           Oded Shimon
 | 
			
		||||
  vorbis_enc.c                          Oded Shimon
 | 
			
		||||
  vorbis_dec.c                          Denes Balatoni, David Conrad
 | 
			
		||||
  vp3*                                  Mike Melanson
 | 
			
		||||
  vp5                                   Aurelien Jacobs
 | 
			
		||||
  vp6                                   Aurelien Jacobs
 | 
			
		||||
  vp8                                   David Conrad, Jason Garrett-Glaser, Ronald Bultje
 | 
			
		||||
  vp9                                   Ronald Bultje, Clément Bœsch
 | 
			
		||||
  vqavideo.c                            Mike Melanson
 | 
			
		||||
  wavpack.c                             Kostya Shishkov
 | 
			
		||||
  wmaprodec.c                           Sascha Sommer
 | 
			
		||||
@@ -292,7 +251,6 @@ Codecs:
 | 
			
		||||
  wnv1.c                                Kostya Shishkov
 | 
			
		||||
  xan.c                                 Mike Melanson
 | 
			
		||||
  xbm*                                  Paul B Mahol
 | 
			
		||||
  xface                                 Stefano Sabatini
 | 
			
		||||
  xl.c                                  Kostya Shishkov
 | 
			
		||||
  xvmc.c                                Ivan Kalvachev
 | 
			
		||||
  xwd*                                  Paul B Mahol
 | 
			
		||||
@@ -301,12 +259,11 @@ Codecs:
 | 
			
		||||
 | 
			
		||||
Hardware acceleration:
 | 
			
		||||
  crystalhd.c                           Philip Langdale
 | 
			
		||||
  dxva2*                                Hendrik Leppkes, Laurent Aimar
 | 
			
		||||
  dxva2*                                Laurent Aimar
 | 
			
		||||
  libstagefright.cpp                    Mohamed Naufal
 | 
			
		||||
  vaapi*                                Gwenole Beauchesne
 | 
			
		||||
  vda*                                  Sebastien Zwickert
 | 
			
		||||
  vdpau*                                Philip Langdale, Carl Eugen Hoyos
 | 
			
		||||
  videotoolbox*                         Sebastien Zwickert
 | 
			
		||||
  vdpau*                                Carl Eugen Hoyos
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
libavdevice
 | 
			
		||||
@@ -315,21 +272,11 @@ libavdevice
 | 
			
		||||
    libavdevice/avdevice.h
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
  avfoundation.m                        Thilo Borgmann
 | 
			
		||||
  decklink*                             Deti Fliegl
 | 
			
		||||
  dshow.c                               Roger Pack (CC rogerdpack@gmail.com)
 | 
			
		||||
  fbdev_enc.c                           Lukasz Marek
 | 
			
		||||
  gdigrab.c                             Roger Pack (CC rogerdpack@gmail.com)
 | 
			
		||||
  iec61883.c                            Georg Lippitsch
 | 
			
		||||
  lavfi                                 Stefano Sabatini
 | 
			
		||||
  libdc1394.c                           Roman Shaposhnik
 | 
			
		||||
  opengl_enc.c                          Lukasz Marek
 | 
			
		||||
  pulse_audio_enc.c                     Lukasz Marek
 | 
			
		||||
  qtkit.m                               Thilo Borgmann
 | 
			
		||||
  sdl                                   Stefano Sabatini
 | 
			
		||||
  v4l2.c                                Giorgio Vazzana
 | 
			
		||||
  v4l2.c                                Luca Abeni
 | 
			
		||||
  vfwcap.c                              Ramiro Polla
 | 
			
		||||
  xv.c                                  Lukasz Marek
 | 
			
		||||
  dshow.c                               Roger Pack
 | 
			
		||||
 | 
			
		||||
libavfilter
 | 
			
		||||
===========
 | 
			
		||||
@@ -338,52 +285,11 @@ Generic parts:
 | 
			
		||||
  graphdump.c                           Nicolas George
 | 
			
		||||
 | 
			
		||||
Filters:
 | 
			
		||||
  f_drawgraph.c                         Paul B Mahol
 | 
			
		||||
  af_adelay.c                           Paul B Mahol
 | 
			
		||||
  af_aecho.c                            Paul B Mahol
 | 
			
		||||
  af_afade.c                            Paul B Mahol
 | 
			
		||||
  af_amerge.c                           Nicolas George
 | 
			
		||||
  af_aphaser.c                          Paul B Mahol
 | 
			
		||||
  af_aresample.c                        Michael Niedermayer
 | 
			
		||||
  af_astats.c                           Paul B Mahol
 | 
			
		||||
  af_astreamsync.c                      Nicolas George
 | 
			
		||||
  af_atempo.c                           Pavel Koshevoy
 | 
			
		||||
  af_biquads.c                          Paul B Mahol
 | 
			
		||||
  af_chorus.c                           Paul B Mahol
 | 
			
		||||
  af_compand.c                          Paul B Mahol
 | 
			
		||||
  af_ladspa.c                           Paul B Mahol
 | 
			
		||||
  af_pan.c                              Nicolas George
 | 
			
		||||
  af_sidechaincompress.c                Paul B Mahol
 | 
			
		||||
  af_silenceremove.c                    Paul B Mahol
 | 
			
		||||
  avf_aphasemeter.c                     Paul B Mahol
 | 
			
		||||
  avf_avectorscope.c                    Paul B Mahol
 | 
			
		||||
  avf_showcqt.c                         Muhammad Faiz
 | 
			
		||||
  vf_blend.c                            Paul B Mahol
 | 
			
		||||
  vf_colorchannelmixer.c                Paul B Mahol
 | 
			
		||||
  vf_colorbalance.c                     Paul B Mahol
 | 
			
		||||
  vf_colorkey.c                         Timo Rothenpieler
 | 
			
		||||
  vf_colorlevels.c                      Paul B Mahol
 | 
			
		||||
  vf_deband.c                           Paul B Mahol
 | 
			
		||||
  vf_dejudder.c                         Nicholas Robbins
 | 
			
		||||
  vf_delogo.c                           Jean Delvare (CC <khali@linux-fr.org>)
 | 
			
		||||
  vf_drawbox.c/drawgrid                 Andrey Utkin
 | 
			
		||||
  vf_extractplanes.c                    Paul B Mahol
 | 
			
		||||
  vf_histogram.c                        Paul B Mahol
 | 
			
		||||
  vf_hqx.c                              Clément Bœsch
 | 
			
		||||
  vf_idet.c                             Pascal Massimino
 | 
			
		||||
  vf_il.c                               Paul B Mahol
 | 
			
		||||
  vf_lenscorrection.c                   Daniel Oberhoff
 | 
			
		||||
  vf_mergeplanes.c                      Paul B Mahol
 | 
			
		||||
  vf_neighbor.c                         Paul B Mahol
 | 
			
		||||
  vf_psnr.c                             Paul B Mahol
 | 
			
		||||
  vf_random.c                           Paul B Mahol
 | 
			
		||||
  vf_scale.c                            Michael Niedermayer
 | 
			
		||||
  vf_separatefields.c                   Paul B Mahol
 | 
			
		||||
  vf_ssim.c                             Paul B Mahol
 | 
			
		||||
  vf_stereo3d.c                         Paul B Mahol
 | 
			
		||||
  vf_telecine.c                         Paul B Mahol
 | 
			
		||||
  vf_yadif.c                            Michael Niedermayer
 | 
			
		||||
  vf_zoompan.c                          Paul B Mahol
 | 
			
		||||
 | 
			
		||||
Sources:
 | 
			
		||||
  vsrc_mandelbrot.c                     Michael Niedermayer
 | 
			
		||||
@@ -400,18 +306,14 @@ Generic parts:
 | 
			
		||||
 | 
			
		||||
Muxers/Demuxers:
 | 
			
		||||
  4xm.c                                 Mike Melanson
 | 
			
		||||
  aadec.c                               Vesselin Bontchev (vesselin.bontchev at yandex dot com)
 | 
			
		||||
  adtsenc.c                             Robert Swain
 | 
			
		||||
  afc.c                                 Paul B Mahol
 | 
			
		||||
  aiffdec.c                             Baptiste Coudurier, Matthieu Bouron
 | 
			
		||||
  aiffenc.c                             Baptiste Coudurier, Matthieu Bouron
 | 
			
		||||
  aiff.c                                Baptiste Coudurier
 | 
			
		||||
  ape.c                                 Kostya Shishkov
 | 
			
		||||
  apngdec.c                             Benoit Fouet
 | 
			
		||||
  ass*                                  Aurelien Jacobs
 | 
			
		||||
  astdec.c                              Paul B Mahol
 | 
			
		||||
  astenc.c                              James Almer
 | 
			
		||||
  avi*                                  Michael Niedermayer
 | 
			
		||||
  avisynth.c                            AvxSynth Team (avxsynth.testing at gmail dot com)
 | 
			
		||||
  avr.c                                 Paul B Mahol
 | 
			
		||||
  bink.c                                Peter Ross
 | 
			
		||||
  brstm.c                               Paul B Mahol
 | 
			
		||||
@@ -419,7 +321,6 @@ Muxers/Demuxers:
 | 
			
		||||
  cdxl.c                                Paul B Mahol
 | 
			
		||||
  crc.c                                 Michael Niedermayer
 | 
			
		||||
  daud.c                                Reimar Doeffinger
 | 
			
		||||
  dss.c                                 Oleksij Rempel, Michael Niedermayer
 | 
			
		||||
  dtshddec.c                            Paul B Mahol
 | 
			
		||||
  dv.c                                  Roman Shaposhnik
 | 
			
		||||
  dxa.c                                 Kostya Shishkov
 | 
			
		||||
@@ -431,13 +332,11 @@ Muxers/Demuxers:
 | 
			
		||||
  flvdec.c, flvenc.c                    Michael Niedermayer
 | 
			
		||||
  gxf.c                                 Reimar Doeffinger
 | 
			
		||||
  gxfenc.c                              Baptiste Coudurier
 | 
			
		||||
  hls.c                                 Anssi Hannula
 | 
			
		||||
  hls encryption (hlsenc.c)             Christian Suloway
 | 
			
		||||
  idcin.c                               Mike Melanson
 | 
			
		||||
  idroqdec.c                            Mike Melanson
 | 
			
		||||
  iff.c                                 Jaikrishnan Menon
 | 
			
		||||
  img2*.c                               Michael Niedermayer
 | 
			
		||||
  ipmovie.c                             Mike Melanson
 | 
			
		||||
  img2*.c                               Michael Niedermayer
 | 
			
		||||
  ircam*                                Paul B Mahol
 | 
			
		||||
  iss.c                                 Stefan Gehrer
 | 
			
		||||
  jacosub*                              Clément Bœsch
 | 
			
		||||
@@ -450,25 +349,23 @@ Muxers/Demuxers:
 | 
			
		||||
  matroska.c                            Aurelien Jacobs
 | 
			
		||||
  matroskadec.c                         Aurelien Jacobs
 | 
			
		||||
  matroskaenc.c                         David Conrad
 | 
			
		||||
  matroska subtitles (matroskaenc.c)    John Peebles
 | 
			
		||||
  metadata*                             Aurelien Jacobs
 | 
			
		||||
  mgsts.c                               Paul B Mahol
 | 
			
		||||
  microdvd*                             Aurelien Jacobs
 | 
			
		||||
  mgsts.c                               Paul B Mahol
 | 
			
		||||
  mm.c                                  Peter Ross
 | 
			
		||||
  mov.c                                 Michael Niedermayer, Baptiste Coudurier
 | 
			
		||||
  movenc.c                              Baptiste Coudurier, Matthieu Bouron
 | 
			
		||||
  movenc.c                              Michael Niedermayer, Baptiste Coudurier
 | 
			
		||||
  mpc.c                                 Kostya Shishkov
 | 
			
		||||
  mpeg.c                                Michael Niedermayer
 | 
			
		||||
  mpegenc.c                             Michael Niedermayer
 | 
			
		||||
  mpegts.c                              Marton Balint
 | 
			
		||||
  mpegtsenc.c                           Baptiste Coudurier
 | 
			
		||||
  mpegts*                               Baptiste Coudurier
 | 
			
		||||
  msnwc_tcp.c                           Ramiro Polla
 | 
			
		||||
  mtv.c                                 Reynaldo H. Verdejo Pinochet
 | 
			
		||||
  mxf*                                  Baptiste Coudurier
 | 
			
		||||
  mxfdec.c                              Tomas Härdin
 | 
			
		||||
  nistspheredec.c                       Paul B Mahol
 | 
			
		||||
  nsvdec.c                              Francois Revol
 | 
			
		||||
  nut*                                  Michael Niedermayer
 | 
			
		||||
  nut.c                                 Michael Niedermayer
 | 
			
		||||
  nuv.c                                 Reimar Doeffinger
 | 
			
		||||
  oggdec.c, oggdec.h                    David Conrad
 | 
			
		||||
  oggenc.c                              Baptiste Coudurier
 | 
			
		||||
@@ -485,23 +382,15 @@ Muxers/Demuxers:
 | 
			
		||||
  rmdec.c, rmenc.c                      Ronald S. Bultje, Kostya Shishkov
 | 
			
		||||
  rtmp*                                 Kostya Shishkov
 | 
			
		||||
  rtp.c, rtpenc.c                       Martin Storsjo
 | 
			
		||||
  rtpdec_ac3.*                          Gilles Chanteperdrix
 | 
			
		||||
  rtpdec_dv.*                           Thomas Volkert
 | 
			
		||||
  rtpdec_h261.*, rtpenc_h261.*          Thomas Volkert
 | 
			
		||||
  rtpdec_hevc.*, rtpenc_hevc.*          Thomas Volkert
 | 
			
		||||
  rtpdec_mpa_robust.*                   Gilles Chanteperdrix
 | 
			
		||||
  rtpdec_asf.*                          Ronald S. Bultje
 | 
			
		||||
  rtpdec_vp9.c                          Thomas Volkert
 | 
			
		||||
  rtpenc_mpv.*, rtpenc_aac.*            Martin Storsjo
 | 
			
		||||
  rtsp.c                                Luca Barbato
 | 
			
		||||
  sbgdec.c                              Nicolas George
 | 
			
		||||
  sdp.c                                 Martin Storsjo
 | 
			
		||||
  segafilm.c                            Mike Melanson
 | 
			
		||||
  segment.c                             Stefano Sabatini
 | 
			
		||||
  siff.c                                Kostya Shishkov
 | 
			
		||||
  smacker.c                             Kostya Shishkov
 | 
			
		||||
  smjpeg*                               Paul B Mahol
 | 
			
		||||
  spdif*                                Anssi Hannula
 | 
			
		||||
  srtdec.c                              Aurelien Jacobs
 | 
			
		||||
  swf.c                                 Baptiste Coudurier
 | 
			
		||||
  takdec.c                              Paul B Mahol
 | 
			
		||||
@@ -510,22 +399,16 @@ Muxers/Demuxers:
 | 
			
		||||
  voc.c                                 Aurelien Jacobs
 | 
			
		||||
  wav.c                                 Michael Niedermayer
 | 
			
		||||
  wc3movie.c                            Mike Melanson
 | 
			
		||||
  webm dash (matroskaenc.c)             Vignesh Venkatasubramanian
 | 
			
		||||
  webvtt*                               Matthew J Heaney
 | 
			
		||||
  westwood.c                            Mike Melanson
 | 
			
		||||
  wtv.c                                 Peter Ross
 | 
			
		||||
  wv.c                                  Kostya Shishkov
 | 
			
		||||
  wvenc.c                               Paul B Mahol
 | 
			
		||||
 | 
			
		||||
Protocols:
 | 
			
		||||
  async.c                               Zhang Rui
 | 
			
		||||
  bluray.c                              Petri Hintukainen
 | 
			
		||||
  ftp.c                                 Lukasz Marek
 | 
			
		||||
  http.c                                Ronald S. Bultje
 | 
			
		||||
  libssh.c                              Lukasz Marek
 | 
			
		||||
  mms*.c                                Ronald S. Bultje
 | 
			
		||||
  udp.c                                 Luca Abeni
 | 
			
		||||
  icecast.c                             Marvin Scholz
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
libswresample
 | 
			
		||||
@@ -548,50 +431,40 @@ Operating systems / CPU architectures
 | 
			
		||||
Alpha                                   Mans Rullgard, Falk Hueffner
 | 
			
		||||
ARM                                     Mans Rullgard
 | 
			
		||||
AVR32                                   Mans Rullgard
 | 
			
		||||
MIPS                                    Mans Rullgard, Nedeljko Babic
 | 
			
		||||
MIPS                                    Mans Rullgard
 | 
			
		||||
Mac OS X / PowerPC                      Romain Dolbeau, Guillaume Poirier
 | 
			
		||||
Amiga / PowerPC                         Colin Ward
 | 
			
		||||
Linux / PowerPC                         Luca Barbato
 | 
			
		||||
Windows MinGW                           Alex Beregszaszi, Ramiro Polla
 | 
			
		||||
Windows Cygwin                          Victor Paesa
 | 
			
		||||
Windows MSVC                            Matthew Oliver, Hendrik Leppkes
 | 
			
		||||
Windows ICL                             Matthew Oliver
 | 
			
		||||
ADI/Blackfin DSP                        Marc Hoffman
 | 
			
		||||
Sparc                                   Roman Shaposhnik
 | 
			
		||||
x86                                     Michael Niedermayer
 | 
			
		||||
OS/2                                    KO Myung-Hun
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
Releases
 | 
			
		||||
========
 | 
			
		||||
 | 
			
		||||
2.8                                     Michael Niedermayer
 | 
			
		||||
2.7                                     Michael Niedermayer
 | 
			
		||||
2.6                                     Michael Niedermayer
 | 
			
		||||
2.5                                     Michael Niedermayer
 | 
			
		||||
2.4                                     Michael Niedermayer
 | 
			
		||||
1.2                                     Michael Niedermayer
 | 
			
		||||
1.1                                     Michael Niedermayer
 | 
			
		||||
1.0                                     Michael Niedermayer
 | 
			
		||||
 | 
			
		||||
If you want to maintain an older release, please contact us
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
GnuPG Fingerprints of maintainers and contributors
 | 
			
		||||
==================================================
 | 
			
		||||
 | 
			
		||||
Alexander Strasser            1C96 78B7 83CB 8AA7 9AF5 D1EB A7D8 A57B A876 E58F
 | 
			
		||||
Anssi Hannula                 1A92 FF42 2DD9 8D2E 8AF7 65A9 4278 C520 513D F3CB
 | 
			
		||||
Anton Khirnov                 6D0C 6625 56F8 65D1 E5F5 814B B50A 1241 C067 07AB
 | 
			
		||||
Ash Hughes                    694D 43D2 D180 C7C7 6421 ABD3 A641 D0B7 623D 6029
 | 
			
		||||
Attila Kinali                 11F0 F9A6 A1D2 11F6 C745 D10C 6520 BCDD F2DF E765
 | 
			
		||||
Baptiste Coudurier            8D77 134D 20CC 9220 201F C5DB 0AC9 325C 5C1A BAAA
 | 
			
		||||
Ben Littler                   3EE3 3723 E560 3214 A8CD 4DEB 2CDB FCE7 768C 8D2C
 | 
			
		||||
Benoit Fouet                  B22A 4F4F 43EF 636B BB66 FCDC 0023 AE1E 2985 49C8
 | 
			
		||||
Clément Bœsch                 52D0 3A82 D445 F194 DB8B 2B16 87EE 2CB8 F4B8 FCF9
 | 
			
		||||
Bœsch Clément                 52D0 3A82 D445 F194 DB8B 2B16 87EE 2CB8 F4B8 FCF9
 | 
			
		||||
Daniel Verkamp                78A6 07ED 782C 653E C628 B8B9 F0EB 8DD8 2F0E 21C7
 | 
			
		||||
Diego Biurrun                 8227 1E31 B6D9 4994 7427 E220 9CAE D6CC 4757 FCC5
 | 
			
		||||
FFmpeg release signing key    FCF9 86EA 15E6 E293 A564 4F10 B432 2F04 D676 58D8
 | 
			
		||||
Gwenole Beauchesne            2E63 B3A6 3E44 37E2 017D 2704 53C7 6266 B153 99C4
 | 
			
		||||
Jaikrishnan Menon             61A1 F09F 01C9 2D45 78E1 C862 25DC 8831 AF70 D368
 | 
			
		||||
Jean Delvare                  7CA6 9F44 60F1 BDC4 1FD2 C858 A552 6B9B B3CD 4E6A
 | 
			
		||||
Justin Ruggles                3136 ECC0 C10D 6C04 5F43 CA29 FCBE CD2A 3787 1EBF
 | 
			
		||||
Loren Merritt                 ABD9 08F4 C920 3F65 D8BE 35D7 1540 DAA7 060F 56DE
 | 
			
		||||
Lou Logan                     7D68 DC73 CBEF EABB 671A B6CF 621C 2E28 82F8 DC3A
 | 
			
		||||
@@ -600,15 +473,11 @@ Michael Niedermayer           9FF2 128B 147E F673 0BAD F133 611E C787 040B 0FAB
 | 
			
		||||
Nicolas George                24CE 01CE 9ACC 5CEB 74D8 8D9D B063 D997 36E5 4C93
 | 
			
		||||
Panagiotis Issaris            6571 13A3 33D9 3726 F728 AA98 F643 B12E ECF3 E029
 | 
			
		||||
Peter Ross                    A907 E02F A6E5 0CD2 34CD 20D2 6760 79C5 AC40 DD6B
 | 
			
		||||
Philip Langdale               5DC5 8D66 5FBA 3A43 18EC 045E F8D6 B194 6A75 682E
 | 
			
		||||
Reimar Doeffinger             C61D 16E5 9E2C D10C 8958 38A4 0899 A2B9 06D4 D9C7
 | 
			
		||||
Reimar Döffinger              C61D 16E5 9E2C D10C 8958 38A4 0899 A2B9 06D4 D9C7
 | 
			
		||||
Reinhard Tartler              9300 5DC2 7E87 6C37 ED7B CA9A 9808 3544 9453 48A4
 | 
			
		||||
Reynaldo H. Verdejo Pinochet  6E27 CD34 170C C78E 4D4F 5F40 C18E 077F 3114 452A
 | 
			
		||||
Robert Swain                  EE7A 56EA 4A81 A7B5 2001 A521 67FA 362D A2FC 3E71
 | 
			
		||||
Sascha Sommer                 38A0 F88B 868E 9D3A 97D4 D6A0 E823 706F 1E07 0D3C
 | 
			
		||||
Stefano Sabatini              0D0B AD6B 5330 BBAD D3D6 6A0C 719C 2839 FC43 2D5F
 | 
			
		||||
Stephan Hilb                  4F38 0B3A 5F39 B99B F505 E562 8D5C 5554 4E17 8863
 | 
			
		||||
Tiancheng "Timothy" Gu        9456 AFC0 814A 8139 E994 8351 7FE6 B095 B582 B0D4
 | 
			
		||||
Tim Nicholson                 38CF DB09 3ED0 F607 8B67 6CED 0C0B FC44 8B0B FC83
 | 
			
		||||
Tomas Härdin                  A79D 4E3D F38F 763F 91F5 8B33 A01E 8AE0 41BB 2551
 | 
			
		||||
Wei Gao                       4269 7741 857A 0E60 9EC5 08D2 4744 4EFA 62C1 87B9
 | 
			
		||||
 
 | 
			
		||||
							
								
								
									
										108
									
								
								Makefile
									
									
									
									
									
								
							
							
						
						
									
										108
									
								
								Makefile
									
									
									
									
									
								
							@@ -4,50 +4,37 @@ include config.mak
 | 
			
		||||
vpath %.c    $(SRC_PATH)
 | 
			
		||||
vpath %.cpp  $(SRC_PATH)
 | 
			
		||||
vpath %.h    $(SRC_PATH)
 | 
			
		||||
vpath %.m    $(SRC_PATH)
 | 
			
		||||
vpath %.S    $(SRC_PATH)
 | 
			
		||||
vpath %.asm  $(SRC_PATH)
 | 
			
		||||
vpath %.rc   $(SRC_PATH)
 | 
			
		||||
vpath %.v    $(SRC_PATH)
 | 
			
		||||
vpath %.texi $(SRC_PATH)
 | 
			
		||||
vpath %/fate_config.sh.template $(SRC_PATH)
 | 
			
		||||
 | 
			
		||||
AVPROGS-$(CONFIG_FFMPEG)   += ffmpeg
 | 
			
		||||
AVPROGS-$(CONFIG_FFPLAY)   += ffplay
 | 
			
		||||
AVPROGS-$(CONFIG_FFPROBE)  += ffprobe
 | 
			
		||||
AVPROGS-$(CONFIG_FFSERVER) += ffserver
 | 
			
		||||
PROGS-$(CONFIG_FFMPEG)   += ffmpeg
 | 
			
		||||
PROGS-$(CONFIG_FFPLAY)   += ffplay
 | 
			
		||||
PROGS-$(CONFIG_FFPROBE)  += ffprobe
 | 
			
		||||
PROGS-$(CONFIG_FFSERVER) += ffserver
 | 
			
		||||
 | 
			
		||||
AVPROGS    := $(AVPROGS-yes:%=%$(PROGSSUF)$(EXESUF))
 | 
			
		||||
INSTPROGS   = $(AVPROGS-yes:%=%$(PROGSSUF)$(EXESUF))
 | 
			
		||||
PROGS      += $(AVPROGS)
 | 
			
		||||
PROGS      := $(PROGS-yes:%=%$(PROGSSUF)$(EXESUF))
 | 
			
		||||
INSTPROGS   = $(PROGS-yes:%=%$(PROGSSUF)$(EXESUF))
 | 
			
		||||
 | 
			
		||||
AVBASENAMES  = ffmpeg ffplay ffprobe ffserver
 | 
			
		||||
ALLAVPROGS   = $(AVBASENAMES:%=%$(PROGSSUF)$(EXESUF))
 | 
			
		||||
ALLAVPROGS_G = $(AVBASENAMES:%=%$(PROGSSUF)_g$(EXESUF))
 | 
			
		||||
 | 
			
		||||
$(foreach prog,$(AVBASENAMES),$(eval OBJS-$(prog) += cmdutils.o))
 | 
			
		||||
$(foreach prog,$(AVBASENAMES),$(eval OBJS-$(prog)-$(CONFIG_OPENCL) += cmdutils_opencl.o))
 | 
			
		||||
 | 
			
		||||
OBJS-ffmpeg                   += ffmpeg_opt.o ffmpeg_filter.o
 | 
			
		||||
OBJS-ffmpeg-$(HAVE_VDPAU_X11) += ffmpeg_vdpau.o
 | 
			
		||||
OBJS-ffmpeg-$(HAVE_DXVA2_LIB) += ffmpeg_dxva2.o
 | 
			
		||||
ifndef CONFIG_VIDEOTOOLBOX
 | 
			
		||||
OBJS-ffmpeg-$(CONFIG_VDA)     += ffmpeg_videotoolbox.o
 | 
			
		||||
endif
 | 
			
		||||
OBJS-ffmpeg-$(CONFIG_VIDEOTOOLBOX) += ffmpeg_videotoolbox.o
 | 
			
		||||
OBJS-ffserver                 += ffserver_config.o
 | 
			
		||||
 | 
			
		||||
TESTTOOLS   = audiogen videogen rotozoom tiny_psnr tiny_ssim base64
 | 
			
		||||
OBJS        = cmdutils.o $(EXEOBJS)
 | 
			
		||||
OBJS-ffmpeg = ffmpeg_opt.o ffmpeg_filter.o
 | 
			
		||||
TESTTOOLS   = audiogen videogen rotozoom tiny_psnr base64
 | 
			
		||||
HOSTPROGS  := $(TESTTOOLS:%=tests/%) doc/print_options
 | 
			
		||||
TOOLS       = qt-faststart trasher uncoded_frame
 | 
			
		||||
TOOLS       = qt-faststart trasher
 | 
			
		||||
TOOLS-$(CONFIG_ZLIB) += cws2fws
 | 
			
		||||
 | 
			
		||||
# $(FFLIBS-yes) needs to be in linking order
 | 
			
		||||
BASENAMES   = ffmpeg ffplay ffprobe ffserver
 | 
			
		||||
ALLPROGS    = $(BASENAMES:%=%$(PROGSSUF)$(EXESUF))
 | 
			
		||||
ALLPROGS_G  = $(BASENAMES:%=%$(PROGSSUF)_g$(EXESUF))
 | 
			
		||||
ALLMANPAGES = $(BASENAMES:%=%.1)
 | 
			
		||||
 | 
			
		||||
FFLIBS-$(CONFIG_AVDEVICE) += avdevice
 | 
			
		||||
FFLIBS-$(CONFIG_AVFILTER) += avfilter
 | 
			
		||||
FFLIBS-$(CONFIG_AVFORMAT) += avformat
 | 
			
		||||
FFLIBS-$(CONFIG_AVCODEC)    += avcodec
 | 
			
		||||
FFLIBS-$(CONFIG_AVRESAMPLE) += avresample
 | 
			
		||||
FFLIBS-$(CONFIG_AVCODEC)  += avcodec
 | 
			
		||||
FFLIBS-$(CONFIG_POSTPROC) += postproc
 | 
			
		||||
FFLIBS-$(CONFIG_SWRESAMPLE)+= swresample
 | 
			
		||||
FFLIBS-$(CONFIG_SWSCALE)  += swscale
 | 
			
		||||
@@ -57,22 +44,23 @@ FFLIBS := avutil
 | 
			
		||||
DATA_FILES := $(wildcard $(SRC_PATH)/presets/*.ffpreset) $(SRC_PATH)/doc/ffprobe.xsd
 | 
			
		||||
EXAMPLES_FILES := $(wildcard $(SRC_PATH)/doc/examples/*.c) $(SRC_PATH)/doc/examples/Makefile $(SRC_PATH)/doc/examples/README
 | 
			
		||||
 | 
			
		||||
SKIPHEADERS = cmdutils_common_opts.h compat/w32pthreads.h
 | 
			
		||||
SKIPHEADERS = cmdutils_common_opts.h
 | 
			
		||||
 | 
			
		||||
include $(SRC_PATH)/common.mak
 | 
			
		||||
 | 
			
		||||
FF_EXTRALIBS := $(FFEXTRALIBS)
 | 
			
		||||
FF_DEP_LIBS  := $(DEP_LIBS)
 | 
			
		||||
FF_STATIC_DEP_LIBS := $(STATIC_DEP_LIBS)
 | 
			
		||||
 | 
			
		||||
all: $(AVPROGS)
 | 
			
		||||
all: $(PROGS)
 | 
			
		||||
 | 
			
		||||
$(PROGS): %$(EXESUF): %_g$(EXESUF)
 | 
			
		||||
	$(CP) $< $@
 | 
			
		||||
	$(STRIP) $@
 | 
			
		||||
 | 
			
		||||
$(TOOLS): %$(EXESUF): %.o $(EXEOBJS)
 | 
			
		||||
	$(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $^ $(ELIBS)
 | 
			
		||||
	$(LD) $(LDFLAGS) $(LD_O) $^ $(ELIBS)
 | 
			
		||||
 | 
			
		||||
tools/cws2fws$(EXESUF): ELIBS = $(ZLIB)
 | 
			
		||||
tools/uncoded_frame$(EXESUF): $(FF_DEP_LIBS)
 | 
			
		||||
tools/uncoded_frame$(EXESUF): ELIBS = $(FF_EXTRALIBS)
 | 
			
		||||
 | 
			
		||||
config.h: .config
 | 
			
		||||
.config: $(wildcard $(FFLIBS:%=$(SRC_PATH)/lib%/all*.c))
 | 
			
		||||
@@ -82,10 +70,11 @@ config.h: .config
 | 
			
		||||
 | 
			
		||||
SUBDIR_VARS := CLEANFILES EXAMPLES FFLIBS HOSTPROGS TESTPROGS TOOLS      \
 | 
			
		||||
               HEADERS ARCH_HEADERS BUILT_HEADERS SKIPHEADERS            \
 | 
			
		||||
               ARMV5TE-OBJS ARMV6-OBJS ARMV8-OBJS VFP-OBJS NEON-OBJS     \
 | 
			
		||||
               ALTIVEC-OBJS MMX-OBJS YASM-OBJS                           \
 | 
			
		||||
               MIPSFPU-OBJS MIPSDSPR2-OBJS MIPSDSPR1-OBJS MSA-OBJS       \
 | 
			
		||||
               MMI-OBJS OBJS SLIBOBJS HOSTOBJS TESTOBJS
 | 
			
		||||
               ARMV5TE-OBJS ARMV6-OBJS VFP-OBJS NEON-OBJS                \
 | 
			
		||||
               ALTIVEC-OBJS VIS-OBJS                                     \
 | 
			
		||||
               MMX-OBJS YASM-OBJS                                        \
 | 
			
		||||
               MIPSFPU-OBJS MIPSDSPR2-OBJS MIPSDSPR1-OBJS MIPS32R2-OBJS  \
 | 
			
		||||
               OBJS HOSTOBJS TESTOBJS
 | 
			
		||||
 | 
			
		||||
define RESET
 | 
			
		||||
$(1) :=
 | 
			
		||||
@@ -97,16 +86,13 @@ $(foreach V,$(SUBDIR_VARS),$(eval $(call RESET,$(V))))
 | 
			
		||||
SUBDIR := $(1)/
 | 
			
		||||
include $(SRC_PATH)/$(1)/Makefile
 | 
			
		||||
-include $(SRC_PATH)/$(1)/$(ARCH)/Makefile
 | 
			
		||||
-include $(SRC_PATH)/$(1)/$(INTRINSICS)/Makefile
 | 
			
		||||
include $(SRC_PATH)/library.mak
 | 
			
		||||
endef
 | 
			
		||||
 | 
			
		||||
$(foreach D,$(FFLIBS),$(eval $(call DOSUBDIR,lib$(D))))
 | 
			
		||||
 | 
			
		||||
include $(SRC_PATH)/doc/Makefile
 | 
			
		||||
 | 
			
		||||
define DOPROG
 | 
			
		||||
OBJS-$(1) += $(1).o $(EXEOBJS) $(OBJS-$(1)-yes)
 | 
			
		||||
OBJS-$(1) += $(1).o cmdutils.o $(EXEOBJS)
 | 
			
		||||
$(1)$(PROGSSUF)_g$(EXESUF): $$(OBJS-$(1))
 | 
			
		||||
$$(OBJS-$(1)): CFLAGS  += $(CFLAGS-$(1))
 | 
			
		||||
$(1)$(PROGSSUF)_g$(EXESUF): LDFLAGS += $(LDFLAGS-$(1))
 | 
			
		||||
@@ -114,16 +100,10 @@ $(1)$(PROGSSUF)_g$(EXESUF): FF_EXTRALIBS += $(LIBS-$(1))
 | 
			
		||||
-include $$(OBJS-$(1):.o=.d)
 | 
			
		||||
endef
 | 
			
		||||
 | 
			
		||||
$(foreach P,$(PROGS),$(eval $(call DOPROG,$(P:$(PROGSSUF)$(EXESUF)=))))
 | 
			
		||||
 | 
			
		||||
ffprobe.o cmdutils.o libavcodec/utils.o libavformat/utils.o libavdevice/avdevice.o libavfilter/avfilter.o libavutil/utils.o libpostproc/postprocess.o libswresample/swresample.o libswscale/utils.o : libavutil/ffversion.h
 | 
			
		||||
 | 
			
		||||
$(PROGS): %$(PROGSSUF)$(EXESUF): %$(PROGSSUF)_g$(EXESUF)
 | 
			
		||||
	$(CP) $< $@
 | 
			
		||||
	$(STRIP) $@
 | 
			
		||||
$(foreach P,$(PROGS-yes),$(eval $(call DOPROG,$(P))))
 | 
			
		||||
 | 
			
		||||
%$(PROGSSUF)_g$(EXESUF): %.o $(FF_DEP_LIBS)
 | 
			
		||||
	$(LD) $(LDFLAGS) $(LDEXEFLAGS) $(LD_O) $(OBJS-$*) $(FF_EXTRALIBS)
 | 
			
		||||
	$(LD) $(LDFLAGS) $(LD_O) $(OBJS-$*) $(FF_EXTRALIBS)
 | 
			
		||||
 | 
			
		||||
OBJDIRS += tools
 | 
			
		||||
 | 
			
		||||
@@ -135,14 +115,14 @@ GIT_LOG     = $(SRC_PATH)/.git/logs/HEAD
 | 
			
		||||
.version: $(wildcard $(GIT_LOG)) $(VERSION_SH) config.mak
 | 
			
		||||
.version: M=@
 | 
			
		||||
 | 
			
		||||
libavutil/ffversion.h .version:
 | 
			
		||||
	$(M)$(VERSION_SH) $(SRC_PATH) libavutil/ffversion.h $(EXTRA_VERSION)
 | 
			
		||||
version.h .version:
 | 
			
		||||
	$(M)$(VERSION_SH) $(SRC_PATH) version.h $(EXTRA_VERSION)
 | 
			
		||||
	$(Q)touch .version
 | 
			
		||||
 | 
			
		||||
# force version.sh to run whenever version might have changed
 | 
			
		||||
-include .version
 | 
			
		||||
 | 
			
		||||
ifdef AVPROGS
 | 
			
		||||
ifdef PROGS
 | 
			
		||||
install: install-progs install-data
 | 
			
		||||
endif
 | 
			
		||||
 | 
			
		||||
@@ -153,7 +133,7 @@ install-libs: install-libs-yes
 | 
			
		||||
install-progs-yes:
 | 
			
		||||
install-progs-$(CONFIG_SHARED): install-libs
 | 
			
		||||
 | 
			
		||||
install-progs: install-progs-yes $(AVPROGS)
 | 
			
		||||
install-progs: install-progs-yes $(PROGS)
 | 
			
		||||
	$(Q)mkdir -p "$(BINDIR)"
 | 
			
		||||
	$(INSTALL) -c -m 755 $(INSTPROGS) "$(BINDIR)"
 | 
			
		||||
 | 
			
		||||
@@ -165,27 +145,37 @@ install-data: $(DATA_FILES) $(EXAMPLES_FILES)
 | 
			
		||||
uninstall: uninstall-libs uninstall-headers uninstall-progs uninstall-data
 | 
			
		||||
 | 
			
		||||
uninstall-progs:
 | 
			
		||||
	$(RM) $(addprefix "$(BINDIR)/", $(ALLAVPROGS))
 | 
			
		||||
	$(RM) $(addprefix "$(BINDIR)/", $(ALLPROGS))
 | 
			
		||||
 | 
			
		||||
uninstall-data:
 | 
			
		||||
	$(RM) -r "$(DATADIR)"
 | 
			
		||||
 | 
			
		||||
clean::
 | 
			
		||||
	$(RM) $(ALLAVPROGS) $(ALLAVPROGS_G)
 | 
			
		||||
	$(RM) $(ALLPROGS) $(ALLPROGS_G)
 | 
			
		||||
	$(RM) $(CLEANSUFFIXES)
 | 
			
		||||
	$(RM) $(CLEANSUFFIXES:%=tools/%)
 | 
			
		||||
	$(RM) coverage.info
 | 
			
		||||
	$(RM) -r coverage-html
 | 
			
		||||
	$(RM) -rf coverage.info lcov
 | 
			
		||||
 | 
			
		||||
distclean::
 | 
			
		||||
	$(RM) $(DISTCLEANSUFFIXES)
 | 
			
		||||
	$(RM) config.* .config libavutil/avconfig.h .version avversion.h version.h libavutil/ffversion.h libavcodec/codec_names.h
 | 
			
		||||
	$(RM) config.* .version version.h libavutil/avconfig.h libavcodec/codec_names.h
 | 
			
		||||
 | 
			
		||||
config:
 | 
			
		||||
	$(SRC_PATH)/configure $(value FFMPEG_CONFIGURATION)
 | 
			
		||||
 | 
			
		||||
# Without the sed genthml thinks "libavutil" and "./libavutil" are two different things
 | 
			
		||||
coverage.info: $(wildcard *.gcda *.gcno */*.gcda */*.gcno */*/*.gcda */*/*.gcno)
 | 
			
		||||
	$(Q)lcov -c -d . -b . | sed -e 's#/./#/#g' > $@
 | 
			
		||||
 | 
			
		||||
coverage-html: coverage.info
 | 
			
		||||
	$(Q)mkdir -p $@
 | 
			
		||||
	$(Q)genhtml -o $@ $<
 | 
			
		||||
	$(Q)touch $@
 | 
			
		||||
 | 
			
		||||
check: all alltools examples testprogs fate
 | 
			
		||||
 | 
			
		||||
include $(SRC_PATH)/doc/Makefile
 | 
			
		||||
include $(SRC_PATH)/tests/Makefile
 | 
			
		||||
 | 
			
		||||
$(sort $(OBJDIRS)):
 | 
			
		||||
 
 | 
			
		||||
							
								
								
									
										18
									
								
								README
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										18
									
								
								README
									
									
									
									
									
										Normal file
									
								
							@@ -0,0 +1,18 @@
 | 
			
		||||
FFmpeg README
 | 
			
		||||
-------------
 | 
			
		||||
 | 
			
		||||
1) Documentation
 | 
			
		||||
----------------
 | 
			
		||||
 | 
			
		||||
* Read the documentation in the doc/ directory in git.
 | 
			
		||||
  You can also view it online at http://ffmpeg.org/documentation.html
 | 
			
		||||
 | 
			
		||||
2) Licensing
 | 
			
		||||
------------
 | 
			
		||||
 | 
			
		||||
* See the LICENSE file.
 | 
			
		||||
 | 
			
		||||
3) Build and Install
 | 
			
		||||
--------------------
 | 
			
		||||
 | 
			
		||||
* See the INSTALL file.
 | 
			
		||||
							
								
								
									
										42
									
								
								README.md
									
									
									
									
									
								
							
							
						
						
									
										42
									
								
								README.md
									
									
									
									
									
								
							@@ -1,42 +0,0 @@
 | 
			
		||||
FFmpeg README
 | 
			
		||||
=============
 | 
			
		||||
 | 
			
		||||
FFmpeg is a collection of libraries and tools to process multimedia content
 | 
			
		||||
such as audio, video, subtitles and related metadata.
 | 
			
		||||
 | 
			
		||||
## Libraries
 | 
			
		||||
 | 
			
		||||
* `libavcodec` provides implementation of a wider range of codecs.
 | 
			
		||||
* `libavformat` implements streaming protocols, container formats and basic I/O access.
 | 
			
		||||
* `libavutil` includes hashers, decompressors and miscellaneous utility functions.
 | 
			
		||||
* `libavfilter` provides a mean to alter decoded Audio and Video through chain of filters.
 | 
			
		||||
* `libavdevice` provides an abstraction to access capture and playback devices.
 | 
			
		||||
* `libswresample` implements audio mixing and resampling routines.
 | 
			
		||||
* `libswscale` implements color conversion and scaling routines.
 | 
			
		||||
 | 
			
		||||
## Tools
 | 
			
		||||
 | 
			
		||||
* [ffmpeg](http://ffmpeg.org/ffmpeg.html) is a command line toolbox to
 | 
			
		||||
  manipulate, convert and stream multimedia content.
 | 
			
		||||
* [ffplay](http://ffmpeg.org/ffplay.html) is a minimalistic multimedia player.
 | 
			
		||||
* [ffprobe](http://ffmpeg.org/ffprobe.html) is a simple analysis tool to inspect
 | 
			
		||||
  multimedia content.
 | 
			
		||||
* [ffserver](http://ffmpeg.org/ffserver.html) is a multimedia streaming server
 | 
			
		||||
  for live broadcasts.
 | 
			
		||||
* Additional small tools such as `aviocat`, `ismindex` and `qt-faststart`.
 | 
			
		||||
 | 
			
		||||
## Documentation
 | 
			
		||||
 | 
			
		||||
The offline documentation is available in the **doc/** directory.
 | 
			
		||||
 | 
			
		||||
The online documentation is available in the main [website](http://ffmpeg.org)
 | 
			
		||||
and in the [wiki](http://trac.ffmpeg.org).
 | 
			
		||||
 | 
			
		||||
### Examples
 | 
			
		||||
 | 
			
		||||
Coding examples are available in the **doc/examples** directory.
 | 
			
		||||
 | 
			
		||||
## License
 | 
			
		||||
 | 
			
		||||
FFmpeg codebase is mainly LGPL-licensed with optional components licensed under
 | 
			
		||||
GPL. Please refer to the LICENSE file for detailed information.
 | 
			
		||||
@@ -1,15 +0,0 @@
 | 
			
		||||
 | 
			
		||||
              ┌────────────────────────────────────────┐
 | 
			
		||||
              │ RELEASE NOTES for FFmpeg 2.8 "Feynman" │
 | 
			
		||||
              └────────────────────────────────────────┘
 | 
			
		||||
 | 
			
		||||
   The FFmpeg Project proudly presents FFmpeg 2.8 "Feynman", about 3
 | 
			
		||||
   months after the release of FFmpeg 2.7.
 | 
			
		||||
 | 
			
		||||
   A complete Changelog is available at the root of the project, and the
 | 
			
		||||
   complete Git history on http://source.ffmpeg.org.
 | 
			
		||||
 | 
			
		||||
   We hope you will like this release as much as we enjoyed working on it, and
 | 
			
		||||
   as usual, if you have any questions about it, or any FFmpeg related topic,
 | 
			
		||||
   feel free to join us on the #ffmpeg IRC channel (on irc.freenode.net) or ask
 | 
			
		||||
   on the mailing-lists.
 | 
			
		||||
							
								
								
									
										7
									
								
								arch.mak
									
									
									
									
									
								
							
							
						
						
									
										7
									
								
								arch.mak
									
									
									
									
									
								
							@@ -1,17 +1,16 @@
 | 
			
		||||
OBJS-$(HAVE_ARMV5TE) += $(ARMV5TE-OBJS) $(ARMV5TE-OBJS-yes)
 | 
			
		||||
OBJS-$(HAVE_ARMV6)   += $(ARMV6-OBJS)   $(ARMV6-OBJS-yes)
 | 
			
		||||
OBJS-$(HAVE_ARMV8)   += $(ARMV8-OBJS)   $(ARMV8-OBJS-yes)
 | 
			
		||||
OBJS-$(HAVE_VFP)     += $(VFP-OBJS)     $(VFP-OBJS-yes)
 | 
			
		||||
OBJS-$(HAVE_NEON)    += $(NEON-OBJS)    $(NEON-OBJS-yes)
 | 
			
		||||
 | 
			
		||||
OBJS-$(HAVE_MIPSFPU)   += $(MIPSFPU-OBJS)    $(MIPSFPU-OBJS-yes)
 | 
			
		||||
OBJS-$(HAVE_MIPS32R2)  += $(MIPS32R2-OBJS)   $(MIPS32R2-OBJS-yes)
 | 
			
		||||
OBJS-$(HAVE_MIPSDSPR1) += $(MIPSDSPR1-OBJS)  $(MIPSDSPR1-OBJS-yes)
 | 
			
		||||
OBJS-$(HAVE_MIPSDSPR2) += $(MIPSDSPR2-OBJS)  $(MIPSDSPR2-OBJS-yes)
 | 
			
		||||
OBJS-$(HAVE_MSA)       += $(MSA-OBJS)        $(MSA-OBJS-yes)
 | 
			
		||||
OBJS-$(HAVE_MMI)   += $(MMI-OBJS)   $(MMI-OBJS-yes)
 | 
			
		||||
 | 
			
		||||
OBJS-$(HAVE_ALTIVEC) += $(ALTIVEC-OBJS) $(ALTIVEC-OBJS-yes)
 | 
			
		||||
OBJS-$(HAVE_VSX)     += $(VSX-OBJS) $(VSX-OBJS-yes)
 | 
			
		||||
 | 
			
		||||
OBJS-$(HAVE_VIS)     += $(VIS-OBJS)     $(VIS-OBJS-yes)
 | 
			
		||||
 | 
			
		||||
OBJS-$(HAVE_MMX)     += $(MMX-OBJS)     $(MMX-OBJS-yes)
 | 
			
		||||
OBJS-$(HAVE_YASM)    += $(YASM-OBJS)    $(YASM-OBJS-yes)
 | 
			
		||||
 
 | 
			
		||||
							
								
								
									
										783
									
								
								cmdutils.c
									
									
									
									
									
								
							
							
						
						
									
										783
									
								
								cmdutils.c
									
									
									
									
									
								
							
										
											
												File diff suppressed because it is too large
												Load Diff
											
										
									
								
							
							
								
								
									
										138
									
								
								cmdutils.h
									
									
									
									
									
								
							
							
						
						
									
										138
									
								
								cmdutils.h
									
									
									
									
									
								
							@@ -24,13 +24,12 @@
 | 
			
		||||
 | 
			
		||||
#include <stdint.h>
 | 
			
		||||
 | 
			
		||||
#include "config.h"
 | 
			
		||||
#include "libavcodec/avcodec.h"
 | 
			
		||||
#include "libavfilter/avfilter.h"
 | 
			
		||||
#include "libavformat/avformat.h"
 | 
			
		||||
#include "libswscale/swscale.h"
 | 
			
		||||
 | 
			
		||||
#ifdef _WIN32
 | 
			
		||||
#ifdef __MINGW32__
 | 
			
		||||
#undef main /* We don't want SDL to override our main() */
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
@@ -44,22 +43,16 @@ extern const char program_name[];
 | 
			
		||||
 */
 | 
			
		||||
extern const int program_birth_year;
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * this year, defined by the program for show_banner()
 | 
			
		||||
 */
 | 
			
		||||
extern const int this_year;
 | 
			
		||||
 | 
			
		||||
extern AVCodecContext *avcodec_opts[AVMEDIA_TYPE_NB];
 | 
			
		||||
extern AVFormatContext *avformat_opts;
 | 
			
		||||
extern AVDictionary *sws_dict;
 | 
			
		||||
extern struct SwsContext *sws_opts;
 | 
			
		||||
extern AVDictionary *swr_opts;
 | 
			
		||||
extern AVDictionary *format_opts, *codec_opts, *resample_opts;
 | 
			
		||||
extern int hide_banner;
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * Register a program-specific cleanup routine.
 | 
			
		||||
 */
 | 
			
		||||
void register_exit(void (*cb)(int ret));
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * Wraps exit with a program-specific cleanup routine.
 | 
			
		||||
 */
 | 
			
		||||
void exit_program(int ret) av_noreturn;
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * Initialize the cmdutils option system, in particular
 | 
			
		||||
@@ -78,11 +71,6 @@ void uninit_opts(void);
 | 
			
		||||
 */
 | 
			
		||||
void log_callback_help(void* ptr, int level, const char* fmt, va_list vl);
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * Override the cpuflags.
 | 
			
		||||
 */
 | 
			
		||||
int opt_cpuflags(void *optctx, const char *opt, const char *arg);
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * Fallback for options that are not explicitly handled, these will be
 | 
			
		||||
 * parsed through AVOptions.
 | 
			
		||||
@@ -98,14 +86,10 @@ int opt_report(const char *opt);
 | 
			
		||||
 | 
			
		||||
int opt_max_alloc(void *optctx, const char *opt, const char *arg);
 | 
			
		||||
 | 
			
		||||
int opt_cpuflags(void *optctx, const char *opt, const char *arg);
 | 
			
		||||
 | 
			
		||||
int opt_codec_debug(void *optctx, const char *opt, const char *arg);
 | 
			
		||||
 | 
			
		||||
#if CONFIG_OPENCL
 | 
			
		||||
int opt_opencl(void *optctx, const char *opt, const char *arg);
 | 
			
		||||
 | 
			
		||||
int opt_opencl_bench(void *optctx, const char *opt, const char *arg);
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * Limit the execution time.
 | 
			
		||||
 */
 | 
			
		||||
@@ -178,8 +162,6 @@ typedef struct OptionDef {
 | 
			
		||||
                                   an int containing element count in the array. */
 | 
			
		||||
#define OPT_TIME  0x10000
 | 
			
		||||
#define OPT_DOUBLE 0x20000
 | 
			
		||||
#define OPT_INPUT  0x40000
 | 
			
		||||
#define OPT_OUTPUT 0x80000
 | 
			
		||||
     union {
 | 
			
		||||
        void *dst_ptr;
 | 
			
		||||
        int (*func_arg)(void *, const char *, const char *);
 | 
			
		||||
@@ -260,11 +242,6 @@ typedef struct OptionGroupDef {
 | 
			
		||||
     * are terminated by a non-option argument (e.g. ffmpeg output files)
 | 
			
		||||
     */
 | 
			
		||||
    const char *sep;
 | 
			
		||||
    /**
 | 
			
		||||
     * Option flags that must be set on each option that is
 | 
			
		||||
     * applied to this group
 | 
			
		||||
     */
 | 
			
		||||
    int flags;
 | 
			
		||||
} OptionGroupDef;
 | 
			
		||||
 | 
			
		||||
typedef struct OptionGroup {
 | 
			
		||||
@@ -277,7 +254,7 @@ typedef struct OptionGroup {
 | 
			
		||||
    AVDictionary *codec_opts;
 | 
			
		||||
    AVDictionary *format_opts;
 | 
			
		||||
    AVDictionary *resample_opts;
 | 
			
		||||
    AVDictionary *sws_dict;
 | 
			
		||||
    struct SwsContext *sws_opts;
 | 
			
		||||
    AVDictionary *swr_opts;
 | 
			
		||||
} OptionGroup;
 | 
			
		||||
 | 
			
		||||
@@ -415,13 +392,6 @@ void show_banner(int argc, char **argv, const OptionDef *options);
 | 
			
		||||
 */
 | 
			
		||||
int show_version(void *optctx, const char *opt, const char *arg);
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * Print the build configuration of the program to stdout. The contents
 | 
			
		||||
 * depend on the definition of FFMPEG_CONFIGURATION.
 | 
			
		||||
 * This option processing function does not utilize the arguments.
 | 
			
		||||
 */
 | 
			
		||||
int show_buildconf(void *optctx, const char *opt, const char *arg);
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * Print the license of the program to stdout. The license depends on
 | 
			
		||||
 * the license of the libraries compiled into the program.
 | 
			
		||||
@@ -431,31 +401,10 @@ int show_license(void *optctx, const char *opt, const char *arg);
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * Print a listing containing all the formats supported by the
 | 
			
		||||
 * program (including devices).
 | 
			
		||||
 * This option processing function does not utilize the arguments.
 | 
			
		||||
 */
 | 
			
		||||
int show_formats(void *optctx, const char *opt, const char *arg);
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * Print a listing containing all the devices supported by the
 | 
			
		||||
 * program.
 | 
			
		||||
 * This option processing function does not utilize the arguments.
 | 
			
		||||
 */
 | 
			
		||||
int show_devices(void *optctx, const char *opt, const char *arg);
 | 
			
		||||
 | 
			
		||||
#if CONFIG_AVDEVICE
 | 
			
		||||
/**
 | 
			
		||||
 * Print a listing containing audodetected sinks of the output device.
 | 
			
		||||
 * Device name with options may be passed as an argument to limit results.
 | 
			
		||||
 */
 | 
			
		||||
int show_sinks(void *optctx, const char *opt, const char *arg);
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * Print a listing containing audodetected sources of the input device.
 | 
			
		||||
 * Device name with options may be passed as an argument to limit results.
 | 
			
		||||
 */
 | 
			
		||||
int show_sources(void *optctx, const char *opt, const char *arg);
 | 
			
		||||
#endif
 | 
			
		||||
int show_formats(void *optctx, const char *opt, const char *arg);
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * Print a listing containing all the codecs supported by the
 | 
			
		||||
@@ -517,18 +466,24 @@ int show_layouts(void *optctx, const char *opt, const char *arg);
 | 
			
		||||
 */
 | 
			
		||||
int show_sample_fmts(void *optctx, const char *opt, const char *arg);
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * Print a listing containing all the color names and values recognized
 | 
			
		||||
 * by the program.
 | 
			
		||||
 */
 | 
			
		||||
int show_colors(void *optctx, const char *opt, const char *arg);
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * Return a positive value if a line read from standard input
 | 
			
		||||
 * starts with [yY], otherwise return 0.
 | 
			
		||||
 */
 | 
			
		||||
int read_yesno(void);
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * Read the file with name filename, and put its content in a newly
 | 
			
		||||
 * allocated 0-terminated buffer.
 | 
			
		||||
 *
 | 
			
		||||
 * @param filename file to read from
 | 
			
		||||
 * @param bufptr location where pointer to buffer is returned
 | 
			
		||||
 * @param size   location where size of buffer is returned
 | 
			
		||||
 * @return 0 in case of success, a negative value corresponding to an
 | 
			
		||||
 * AVERROR error code in case of failure.
 | 
			
		||||
 */
 | 
			
		||||
int cmdutils_read_file(const char *filename, char **bufptr, size_t *size);
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * Get a file corresponding to a preset file.
 | 
			
		||||
 *
 | 
			
		||||
@@ -562,11 +517,52 @@ FILE *get_preset_file(char *filename, size_t filename_size,
 | 
			
		||||
 */
 | 
			
		||||
void *grow_array(void *array, int elem_size, int *size, int new_size);
 | 
			
		||||
 | 
			
		||||
#define media_type_string av_get_media_type_string
 | 
			
		||||
 | 
			
		||||
#define GROW_ARRAY(array, nb_elems)\
 | 
			
		||||
    array = grow_array(array, sizeof(*array), &nb_elems, nb_elems + 1)
 | 
			
		||||
 | 
			
		||||
typedef struct FrameBuffer {
 | 
			
		||||
    uint8_t *base[4];
 | 
			
		||||
    uint8_t *data[4];
 | 
			
		||||
    int  linesize[4];
 | 
			
		||||
 | 
			
		||||
    int h, w;
 | 
			
		||||
    enum AVPixelFormat pix_fmt;
 | 
			
		||||
 | 
			
		||||
    int refcount;
 | 
			
		||||
    struct FrameBuffer **pool;  ///< head of the buffer pool
 | 
			
		||||
    struct FrameBuffer *next;
 | 
			
		||||
} FrameBuffer;
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * Get a frame from the pool. This is intended to be used as a callback for
 | 
			
		||||
 * AVCodecContext.get_buffer.
 | 
			
		||||
 *
 | 
			
		||||
 * @param s codec context. s->opaque must be a pointer to the head of the
 | 
			
		||||
 *          buffer pool.
 | 
			
		||||
 * @param frame frame->opaque will be set to point to the FrameBuffer
 | 
			
		||||
 *              containing the frame data.
 | 
			
		||||
 */
 | 
			
		||||
int codec_get_buffer(AVCodecContext *s, AVFrame *frame);
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * A callback to be used for AVCodecContext.release_buffer along with
 | 
			
		||||
 * codec_get_buffer().
 | 
			
		||||
 */
 | 
			
		||||
void codec_release_buffer(AVCodecContext *s, AVFrame *frame);
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * A callback to be used for AVFilterBuffer.free.
 | 
			
		||||
 * @param fb buffer to free. fb->priv must be a pointer to the FrameBuffer
 | 
			
		||||
 *           containing the buffer data.
 | 
			
		||||
 */
 | 
			
		||||
void filter_release_buffer(AVFilterBuffer *fb);
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * Free all the buffers in the pool. This must be called after all the
 | 
			
		||||
 * buffers have been released.
 | 
			
		||||
 */
 | 
			
		||||
void free_buffer_pool(FrameBuffer **pool);
 | 
			
		||||
 | 
			
		||||
#define GET_PIX_FMT_NAME(pix_fmt)\
 | 
			
		||||
    const char *name = av_get_pix_fmt_name(pix_fmt);
 | 
			
		||||
 | 
			
		||||
@@ -585,6 +581,4 @@ void *grow_array(void *array, int elem_size, int *size, int new_size);
 | 
			
		||||
    char name[128];\
 | 
			
		||||
    av_get_channel_layout_string(name, sizeof(name), 0, ch_layout);
 | 
			
		||||
 | 
			
		||||
double get_rotation(AVStream *st);
 | 
			
		||||
 | 
			
		||||
#endif /* CMDUTILS_H */
 | 
			
		||||
 
 | 
			
		||||
@@ -4,9 +4,7 @@
 | 
			
		||||
    { "help"       , OPT_EXIT, {.func_arg = show_help},         "show help", "topic" },
 | 
			
		||||
    { "-help"      , OPT_EXIT, {.func_arg = show_help},         "show help", "topic" },
 | 
			
		||||
    { "version"    , OPT_EXIT, {.func_arg = show_version},      "show version" },
 | 
			
		||||
    { "buildconf"  , OPT_EXIT, {.func_arg = show_buildconf},    "show build configuration" },
 | 
			
		||||
    { "formats"    , OPT_EXIT, {.func_arg = show_formats  },    "show available formats" },
 | 
			
		||||
    { "devices"    , OPT_EXIT, {.func_arg = show_devices  },    "show available devices" },
 | 
			
		||||
    { "codecs"     , OPT_EXIT, {.func_arg = show_codecs   },    "show available codecs" },
 | 
			
		||||
    { "decoders"   , OPT_EXIT, {.func_arg = show_decoders },    "show available decoders" },
 | 
			
		||||
    { "encoders"   , OPT_EXIT, {.func_arg = show_encoders },    "show available encoders" },
 | 
			
		||||
@@ -16,20 +14,8 @@
 | 
			
		||||
    { "pix_fmts"   , OPT_EXIT, {.func_arg = show_pix_fmts },    "show available pixel formats" },
 | 
			
		||||
    { "layouts"    , OPT_EXIT, {.func_arg = show_layouts  },    "show standard channel layouts" },
 | 
			
		||||
    { "sample_fmts", OPT_EXIT, {.func_arg = show_sample_fmts }, "show available audio sample formats" },
 | 
			
		||||
    { "colors"     , OPT_EXIT, {.func_arg = show_colors },      "show available color names" },
 | 
			
		||||
    { "loglevel"   , HAS_ARG,  {.func_arg = opt_loglevel},      "set logging level", "loglevel" },
 | 
			
		||||
    { "v",           HAS_ARG,  {.func_arg = opt_loglevel},      "set logging level", "loglevel" },
 | 
			
		||||
    { "loglevel"   , HAS_ARG,  {.func_arg = opt_loglevel},      "set libav* logging level", "loglevel" },
 | 
			
		||||
    { "v",           HAS_ARG,  {.func_arg = opt_loglevel},      "set libav* logging level", "loglevel" },
 | 
			
		||||
    { "report"     , 0,        {(void*)opt_report}, "generate a report" },
 | 
			
		||||
    { "max_alloc"  , HAS_ARG,  {.func_arg = opt_max_alloc},     "set maximum size of a single allocated block", "bytes" },
 | 
			
		||||
    { "cpuflags"   , HAS_ARG | OPT_EXPERT, {.func_arg = opt_cpuflags}, "force specific cpu flags", "flags" },
 | 
			
		||||
    { "hide_banner", OPT_BOOL | OPT_EXPERT, {&hide_banner},     "do not show program banner", "hide_banner" },
 | 
			
		||||
#if CONFIG_OPENCL
 | 
			
		||||
    { "opencl_bench", OPT_EXIT, {.func_arg = opt_opencl_bench}, "run benchmark on all OpenCL devices and show results" },
 | 
			
		||||
    { "opencl_options", HAS_ARG, {.func_arg = opt_opencl},      "set OpenCL environment options" },
 | 
			
		||||
#endif
 | 
			
		||||
#if CONFIG_AVDEVICE
 | 
			
		||||
    { "sources"    , OPT_EXIT | HAS_ARG, { .func_arg = show_sources },
 | 
			
		||||
      "list sources of the input device", "device" },
 | 
			
		||||
    { "sinks"      , OPT_EXIT | HAS_ARG, { .func_arg = show_sinks },
 | 
			
		||||
      "list sinks of the output device", "device" },
 | 
			
		||||
#endif
 | 
			
		||||
 
 | 
			
		||||
@@ -1,276 +0,0 @@
 | 
			
		||||
/*
 | 
			
		||||
 * Copyright (C) 2013 Lenny Wang
 | 
			
		||||
 *
 | 
			
		||||
 * This file is part of FFmpeg.
 | 
			
		||||
 *
 | 
			
		||||
 * FFmpeg is free software; you can redistribute it and/or
 | 
			
		||||
 * modify it under the terms of the GNU Lesser General Public
 | 
			
		||||
 * License as published by the Free Software Foundation; either
 | 
			
		||||
 * version 2.1 of the License, or (at your option) any later version.
 | 
			
		||||
 *
 | 
			
		||||
 * FFmpeg is distributed in the hope that it will be useful,
 | 
			
		||||
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 | 
			
		||||
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 | 
			
		||||
 * Lesser General Public License for more details.
 | 
			
		||||
 *
 | 
			
		||||
 * You should have received a copy of the GNU Lesser General Public
 | 
			
		||||
 * License along with FFmpeg; if not, write to the Free Software
 | 
			
		||||
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
#include "libavutil/opt.h"
 | 
			
		||||
#include "libavutil/time.h"
 | 
			
		||||
#include "libavutil/log.h"
 | 
			
		||||
#include "libavutil/opencl.h"
 | 
			
		||||
#include "libavutil/avstring.h"
 | 
			
		||||
#include "cmdutils.h"
 | 
			
		||||
 | 
			
		||||
typedef struct {
 | 
			
		||||
    int platform_idx;
 | 
			
		||||
    int device_idx;
 | 
			
		||||
    char device_name[64];
 | 
			
		||||
    int64_t runtime;
 | 
			
		||||
} OpenCLDeviceBenchmark;
 | 
			
		||||
 | 
			
		||||
const char *ocl_bench_source = AV_OPENCL_KERNEL(
 | 
			
		||||
inline unsigned char clip_uint8(int a)
 | 
			
		||||
{
 | 
			
		||||
    if (a & (~0xFF))
 | 
			
		||||
        return (-a)>>31;
 | 
			
		||||
    else
 | 
			
		||||
        return a;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
kernel void unsharp_bench(
 | 
			
		||||
                    global unsigned char *src,
 | 
			
		||||
                    global unsigned char *dst,
 | 
			
		||||
                    global int *mask,
 | 
			
		||||
                    int width,
 | 
			
		||||
                    int height)
 | 
			
		||||
{
 | 
			
		||||
    int i, j, local_idx, lc_idx, sum = 0;
 | 
			
		||||
    int2 thread_idx, block_idx, global_idx, lm_idx;
 | 
			
		||||
    thread_idx.x = get_local_id(0);
 | 
			
		||||
    thread_idx.y = get_local_id(1);
 | 
			
		||||
    block_idx.x = get_group_id(0);
 | 
			
		||||
    block_idx.y = get_group_id(1);
 | 
			
		||||
    global_idx.x = get_global_id(0);
 | 
			
		||||
    global_idx.y = get_global_id(1);
 | 
			
		||||
    local uchar data[32][32];
 | 
			
		||||
    local int lc[128];
 | 
			
		||||
 | 
			
		||||
    for (i = 0; i <= 1; i++) {
 | 
			
		||||
        lm_idx.y = -8 + (block_idx.y + i) * 16 + thread_idx.y;
 | 
			
		||||
        lm_idx.y = lm_idx.y < 0 ? 0 : lm_idx.y;
 | 
			
		||||
        lm_idx.y = lm_idx.y >= height ? height - 1: lm_idx.y;
 | 
			
		||||
        for (j = 0; j <= 1; j++) {
 | 
			
		||||
            lm_idx.x = -8 + (block_idx.x + j) * 16 + thread_idx.x;
 | 
			
		||||
            lm_idx.x = lm_idx.x < 0 ? 0 : lm_idx.x;
 | 
			
		||||
            lm_idx.x = lm_idx.x >= width ? width - 1: lm_idx.x;
 | 
			
		||||
            data[i*16 + thread_idx.y][j*16 + thread_idx.x] = src[lm_idx.y*width + lm_idx.x];
 | 
			
		||||
        }
 | 
			
		||||
    }
 | 
			
		||||
    local_idx = thread_idx.y*16 + thread_idx.x;
 | 
			
		||||
    if (local_idx < 128)
 | 
			
		||||
        lc[local_idx] = mask[local_idx];
 | 
			
		||||
    barrier(CLK_LOCAL_MEM_FENCE);
 | 
			
		||||
 | 
			
		||||
    \n#pragma unroll\n
 | 
			
		||||
    for (i = -4; i <= 4; i++) {
 | 
			
		||||
        lm_idx.y = 8 + i + thread_idx.y;
 | 
			
		||||
        \n#pragma unroll\n
 | 
			
		||||
        for (j = -4; j <= 4; j++) {
 | 
			
		||||
            lm_idx.x = 8 + j + thread_idx.x;
 | 
			
		||||
            lc_idx = (i + 4)*8 + j + 4;
 | 
			
		||||
            sum += (int)data[lm_idx.y][lm_idx.x] * lc[lc_idx];
 | 
			
		||||
        }
 | 
			
		||||
    }
 | 
			
		||||
    int temp = (int)data[thread_idx.y + 8][thread_idx.x + 8];
 | 
			
		||||
    int res = temp + (((temp - (int)((sum + 1<<15) >> 16))) >> 16);
 | 
			
		||||
    if (global_idx.x < width && global_idx.y < height)
 | 
			
		||||
        dst[global_idx.x + global_idx.y*width] = clip_uint8(res);
 | 
			
		||||
}
 | 
			
		||||
);
 | 
			
		||||
 | 
			
		||||
#define OCLCHECK(method, ... )                                                 \
 | 
			
		||||
do {                                                                           \
 | 
			
		||||
    status = method(__VA_ARGS__);                                              \
 | 
			
		||||
    if (status != CL_SUCCESS) {                                                \
 | 
			
		||||
        av_log(NULL, AV_LOG_ERROR, # method " error '%s'\n",                   \
 | 
			
		||||
               av_opencl_errstr(status));                                      \
 | 
			
		||||
        ret = AVERROR_EXTERNAL;                                                \
 | 
			
		||||
        goto end;                                                              \
 | 
			
		||||
    }                                                                          \
 | 
			
		||||
} while (0)
 | 
			
		||||
 | 
			
		||||
#define CREATEBUF(out, flags, size)                                            \
 | 
			
		||||
do {                                                                           \
 | 
			
		||||
    out = clCreateBuffer(ext_opencl_env->context, flags, size, NULL, &status); \
 | 
			
		||||
    if (status != CL_SUCCESS) {                                                \
 | 
			
		||||
        av_log(NULL, AV_LOG_ERROR, "Could not create OpenCL buffer\n");        \
 | 
			
		||||
        ret = AVERROR_EXTERNAL;                                                \
 | 
			
		||||
        goto end;                                                              \
 | 
			
		||||
    }                                                                          \
 | 
			
		||||
} while (0)
 | 
			
		||||
 | 
			
		||||
static void fill_rand_int(int *data, int n)
 | 
			
		||||
{
 | 
			
		||||
    int i;
 | 
			
		||||
    srand(av_gettime());
 | 
			
		||||
    for (i = 0; i < n; i++)
 | 
			
		||||
        data[i] = rand();
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
#define OPENCL_NB_ITER 5
 | 
			
		||||
static int64_t run_opencl_bench(AVOpenCLExternalEnv *ext_opencl_env)
 | 
			
		||||
{
 | 
			
		||||
    int i, arg = 0, width = 1920, height = 1088;
 | 
			
		||||
    int64_t start, ret = 0;
 | 
			
		||||
    cl_int status;
 | 
			
		||||
    size_t kernel_len;
 | 
			
		||||
    char *inbuf;
 | 
			
		||||
    int *mask;
 | 
			
		||||
    int buf_size = width * height * sizeof(char);
 | 
			
		||||
    int mask_size = sizeof(uint32_t) * 128;
 | 
			
		||||
 | 
			
		||||
    cl_mem cl_mask, cl_inbuf, cl_outbuf;
 | 
			
		||||
    cl_kernel kernel = NULL;
 | 
			
		||||
    cl_program program = NULL;
 | 
			
		||||
    size_t local_work_size_2d[2] = {16, 16};
 | 
			
		||||
    size_t global_work_size_2d[2] = {(size_t)width, (size_t)height};
 | 
			
		||||
 | 
			
		||||
    if (!(inbuf = av_malloc(buf_size)) || !(mask = av_malloc(mask_size))) {
 | 
			
		||||
        av_log(NULL, AV_LOG_ERROR, "Out of memory\n");
 | 
			
		||||
        ret = AVERROR(ENOMEM);
 | 
			
		||||
        goto end;
 | 
			
		||||
    }
 | 
			
		||||
    fill_rand_int((int*)inbuf, buf_size/4);
 | 
			
		||||
    fill_rand_int(mask, mask_size/4);
 | 
			
		||||
 | 
			
		||||
    CREATEBUF(cl_mask, CL_MEM_READ_ONLY, mask_size);
 | 
			
		||||
    CREATEBUF(cl_inbuf, CL_MEM_READ_ONLY, buf_size);
 | 
			
		||||
    CREATEBUF(cl_outbuf, CL_MEM_READ_WRITE, buf_size);
 | 
			
		||||
 | 
			
		||||
    kernel_len = strlen(ocl_bench_source);
 | 
			
		||||
    program = clCreateProgramWithSource(ext_opencl_env->context, 1, &ocl_bench_source,
 | 
			
		||||
                                        &kernel_len, &status);
 | 
			
		||||
    if (status != CL_SUCCESS || !program) {
 | 
			
		||||
        av_log(NULL, AV_LOG_ERROR, "OpenCL unable to create benchmark program\n");
 | 
			
		||||
        ret = AVERROR_EXTERNAL;
 | 
			
		||||
        goto end;
 | 
			
		||||
    }
 | 
			
		||||
    status = clBuildProgram(program, 1, &(ext_opencl_env->device_id), NULL, NULL, NULL);
 | 
			
		||||
    if (status != CL_SUCCESS) {
 | 
			
		||||
        av_log(NULL, AV_LOG_ERROR, "OpenCL unable to build benchmark program\n");
 | 
			
		||||
        ret = AVERROR_EXTERNAL;
 | 
			
		||||
        goto end;
 | 
			
		||||
    }
 | 
			
		||||
    kernel = clCreateKernel(program, "unsharp_bench", &status);
 | 
			
		||||
    if (status != CL_SUCCESS) {
 | 
			
		||||
        av_log(NULL, AV_LOG_ERROR, "OpenCL unable to create benchmark kernel\n");
 | 
			
		||||
        ret = AVERROR_EXTERNAL;
 | 
			
		||||
        goto end;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    OCLCHECK(clEnqueueWriteBuffer, ext_opencl_env->command_queue, cl_inbuf, CL_TRUE, 0,
 | 
			
		||||
             buf_size, inbuf, 0, NULL, NULL);
 | 
			
		||||
    OCLCHECK(clEnqueueWriteBuffer, ext_opencl_env->command_queue, cl_mask, CL_TRUE, 0,
 | 
			
		||||
             mask_size, mask, 0, NULL, NULL);
 | 
			
		||||
    OCLCHECK(clSetKernelArg, kernel, arg++, sizeof(cl_mem), &cl_inbuf);
 | 
			
		||||
    OCLCHECK(clSetKernelArg, kernel, arg++, sizeof(cl_mem), &cl_outbuf);
 | 
			
		||||
    OCLCHECK(clSetKernelArg, kernel, arg++, sizeof(cl_mem), &cl_mask);
 | 
			
		||||
    OCLCHECK(clSetKernelArg, kernel, arg++, sizeof(cl_int), &width);
 | 
			
		||||
    OCLCHECK(clSetKernelArg, kernel, arg++, sizeof(cl_int), &height);
 | 
			
		||||
 | 
			
		||||
    start = av_gettime_relative();
 | 
			
		||||
    for (i = 0; i < OPENCL_NB_ITER; i++)
 | 
			
		||||
        OCLCHECK(clEnqueueNDRangeKernel, ext_opencl_env->command_queue, kernel, 2, NULL,
 | 
			
		||||
                 global_work_size_2d, local_work_size_2d, 0, NULL, NULL);
 | 
			
		||||
    clFinish(ext_opencl_env->command_queue);
 | 
			
		||||
    ret = (av_gettime_relative() - start)/OPENCL_NB_ITER;
 | 
			
		||||
end:
 | 
			
		||||
    if (kernel)
 | 
			
		||||
        clReleaseKernel(kernel);
 | 
			
		||||
    if (program)
 | 
			
		||||
        clReleaseProgram(program);
 | 
			
		||||
    if (cl_inbuf)
 | 
			
		||||
        clReleaseMemObject(cl_inbuf);
 | 
			
		||||
    if (cl_outbuf)
 | 
			
		||||
        clReleaseMemObject(cl_outbuf);
 | 
			
		||||
    if (cl_mask)
 | 
			
		||||
        clReleaseMemObject(cl_mask);
 | 
			
		||||
    av_free(inbuf);
 | 
			
		||||
    av_free(mask);
 | 
			
		||||
    return ret;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static int compare_ocl_device_desc(const void *a, const void *b)
 | 
			
		||||
{
 | 
			
		||||
    return ((OpenCLDeviceBenchmark*)a)->runtime - ((OpenCLDeviceBenchmark*)b)->runtime;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
int opt_opencl_bench(void *optctx, const char *opt, const char *arg)
 | 
			
		||||
{
 | 
			
		||||
    int i, j, nb_devices = 0, count = 0;
 | 
			
		||||
    int64_t score = 0;
 | 
			
		||||
    AVOpenCLDeviceList *device_list;
 | 
			
		||||
    AVOpenCLDeviceNode *device_node = NULL;
 | 
			
		||||
    OpenCLDeviceBenchmark *devices = NULL;
 | 
			
		||||
    cl_platform_id platform;
 | 
			
		||||
 | 
			
		||||
    av_opencl_get_device_list(&device_list);
 | 
			
		||||
    for (i = 0; i < device_list->platform_num; i++)
 | 
			
		||||
        nb_devices += device_list->platform_node[i]->device_num;
 | 
			
		||||
    if (!nb_devices) {
 | 
			
		||||
        av_log(NULL, AV_LOG_ERROR, "No OpenCL device detected!\n");
 | 
			
		||||
        return AVERROR(EINVAL);
 | 
			
		||||
    }
 | 
			
		||||
    if (!(devices = av_malloc_array(nb_devices, sizeof(OpenCLDeviceBenchmark)))) {
 | 
			
		||||
        av_log(NULL, AV_LOG_ERROR, "Could not allocate buffer\n");
 | 
			
		||||
        return AVERROR(ENOMEM);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    for (i = 0; i < device_list->platform_num; i++) {
 | 
			
		||||
        for (j = 0; j < device_list->platform_node[i]->device_num; j++) {
 | 
			
		||||
            device_node = device_list->platform_node[i]->device_node[j];
 | 
			
		||||
            platform = device_list->platform_node[i]->platform_id;
 | 
			
		||||
            score = av_opencl_benchmark(device_node, platform, run_opencl_bench);
 | 
			
		||||
            if (score > 0) {
 | 
			
		||||
                devices[count].platform_idx = i;
 | 
			
		||||
                devices[count].device_idx = j;
 | 
			
		||||
                devices[count].runtime = score;
 | 
			
		||||
                av_strlcpy(devices[count].device_name, device_node->device_name,
 | 
			
		||||
                           sizeof(devices[count].device_name));
 | 
			
		||||
                count++;
 | 
			
		||||
            }
 | 
			
		||||
        }
 | 
			
		||||
    }
 | 
			
		||||
    qsort(devices, count, sizeof(OpenCLDeviceBenchmark), compare_ocl_device_desc);
 | 
			
		||||
    fprintf(stderr, "platform_idx\tdevice_idx\tdevice_name\truntime\n");
 | 
			
		||||
    for (i = 0; i < count; i++)
 | 
			
		||||
        fprintf(stdout, "%d\t%d\t%s\t%"PRId64"\n",
 | 
			
		||||
                devices[i].platform_idx, devices[i].device_idx,
 | 
			
		||||
                devices[i].device_name, devices[i].runtime);
 | 
			
		||||
 | 
			
		||||
    av_opencl_free_device_list(&device_list);
 | 
			
		||||
    av_free(devices);
 | 
			
		||||
    return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
int opt_opencl(void *optctx, const char *opt, const char *arg)
 | 
			
		||||
{
 | 
			
		||||
    char *key, *value;
 | 
			
		||||
    const char *opts = arg;
 | 
			
		||||
    int ret = 0;
 | 
			
		||||
    while (*opts) {
 | 
			
		||||
        ret = av_opt_get_key_value(&opts, "=", ":", 0, &key, &value);
 | 
			
		||||
        if (ret < 0)
 | 
			
		||||
            return ret;
 | 
			
		||||
        ret = av_opencl_set_option(key, value);
 | 
			
		||||
        if (ret < 0)
 | 
			
		||||
            return ret;
 | 
			
		||||
        if (*opts)
 | 
			
		||||
            opts++;
 | 
			
		||||
    }
 | 
			
		||||
    return ret;
 | 
			
		||||
}
 | 
			
		||||
							
								
								
									
										43
									
								
								common.mak
									
									
									
									
									
								
							
							
						
						
									
										43
									
								
								common.mak
									
									
									
									
									
								
							@@ -5,20 +5,12 @@
 | 
			
		||||
# first so "all" becomes default target
 | 
			
		||||
all: all-yes
 | 
			
		||||
 | 
			
		||||
DEFAULT_YASMD=.dbg
 | 
			
		||||
 | 
			
		||||
ifeq ($(DBG),1)
 | 
			
		||||
YASMD=$(DEFAULT_YASMD)
 | 
			
		||||
else
 | 
			
		||||
YASMD=
 | 
			
		||||
endif
 | 
			
		||||
 | 
			
		||||
ifndef SUBDIR
 | 
			
		||||
 | 
			
		||||
ifndef V
 | 
			
		||||
Q      = @
 | 
			
		||||
ECHO   = printf "$(1)\t%s\n" $(2)
 | 
			
		||||
BRIEF  = CC CXX HOSTCC HOSTLD AS YASM AR LD STRIP CP WINDRES
 | 
			
		||||
BRIEF  = CC CXX HOSTCC HOSTLD AS YASM AR LD STRIP CP
 | 
			
		||||
SILENT = DEPCC DEPHOSTCC DEPAS DEPYASM RANLIB RM
 | 
			
		||||
 | 
			
		||||
MSG    = $@
 | 
			
		||||
@@ -51,7 +43,6 @@ endef
 | 
			
		||||
COMPILE_C = $(call COMPILE,CC)
 | 
			
		||||
COMPILE_CXX = $(call COMPILE,CXX)
 | 
			
		||||
COMPILE_S = $(call COMPILE,AS)
 | 
			
		||||
COMPILE_HOSTC = $(call COMPILE,HOSTCC)
 | 
			
		||||
 | 
			
		||||
%.o: %.c
 | 
			
		||||
	$(COMPILE_C)
 | 
			
		||||
@@ -59,21 +50,12 @@ COMPILE_HOSTC = $(call COMPILE,HOSTCC)
 | 
			
		||||
%.o: %.cpp
 | 
			
		||||
	$(COMPILE_CXX)
 | 
			
		||||
 | 
			
		||||
%.o: %.m
 | 
			
		||||
	$(COMPILE_C)
 | 
			
		||||
 | 
			
		||||
%.s: %.c
 | 
			
		||||
	$(CC) $(CPPFLAGS) $(CFLAGS) -S -o $@ $<
 | 
			
		||||
 | 
			
		||||
%.o: %.S
 | 
			
		||||
	$(COMPILE_S)
 | 
			
		||||
 | 
			
		||||
%_host.o: %.c
 | 
			
		||||
	$(COMPILE_HOSTC)
 | 
			
		||||
 | 
			
		||||
%.o: %.rc
 | 
			
		||||
	$(WINDRES) $(IFLAGS) --preprocessor "$(DEPWINDRES) -E -xc-header -DRC_INVOKED $(CC_DEPFLAGS)" -o $@ $<
 | 
			
		||||
 | 
			
		||||
%.i: %.c
 | 
			
		||||
	$(CC) $(CCFLAGS) $(CC_E) $<
 | 
			
		||||
 | 
			
		||||
@@ -100,15 +82,14 @@ endif
 | 
			
		||||
include $(SRC_PATH)/arch.mak
 | 
			
		||||
 | 
			
		||||
OBJS      += $(OBJS-yes)
 | 
			
		||||
SLIBOBJS  += $(SLIBOBJS-yes)
 | 
			
		||||
FFLIBS    := $($(NAME)_FFLIBS) $(FFLIBS-yes) $(FFLIBS)
 | 
			
		||||
FFLIBS    := $(FFLIBS-yes) $(FFLIBS)
 | 
			
		||||
TESTPROGS += $(TESTPROGS-yes)
 | 
			
		||||
 | 
			
		||||
LDLIBS       = $(FFLIBS:%=%$(BUILDSUF))
 | 
			
		||||
FFEXTRALIBS := $(LDLIBS:%=$(LD_LIB)) $(EXTRALIBS)
 | 
			
		||||
 | 
			
		||||
EXAMPLES  := $(EXAMPLES:%=$(SUBDIR)%-example$(EXESUF))
 | 
			
		||||
OBJS      := $(sort $(OBJS:%=$(SUBDIR)%))
 | 
			
		||||
SLIBOBJS  := $(sort $(SLIBOBJS:%=$(SUBDIR)%))
 | 
			
		||||
TESTOBJS  := $(TESTOBJS:%=$(SUBDIR)%) $(TESTPROGS:%=$(SUBDIR)%-test.o)
 | 
			
		||||
TESTPROGS := $(TESTPROGS:%=$(SUBDIR)%-test$(EXESUF))
 | 
			
		||||
HOSTOBJS  := $(HOSTPROGS:%=$(SUBDIR)%.o)
 | 
			
		||||
@@ -118,11 +99,8 @@ TOOLOBJS  := $(TOOLS:%=tools/%.o)
 | 
			
		||||
TOOLS     := $(TOOLS:%=tools/%$(EXESUF))
 | 
			
		||||
HEADERS   += $(HEADERS-yes)
 | 
			
		||||
 | 
			
		||||
PATH_LIBNAME = $(foreach NAME,$(1),lib$(NAME)/$($(2)LIBNAME))
 | 
			
		||||
DEP_LIBS := $(foreach lib,$(FFLIBS),$(call PATH_LIBNAME,$(lib),$(CONFIG_SHARED:yes=S)))
 | 
			
		||||
STATIC_DEP_LIBS := $(foreach lib,$(FFLIBS),$(call PATH_LIBNAME,$(lib)))
 | 
			
		||||
DEP_LIBS := $(foreach NAME,$(FFLIBS),lib$(NAME)/$($(CONFIG_SHARED:yes=S)LIBNAME))
 | 
			
		||||
 | 
			
		||||
SRC_DIR    := $(SRC_PATH)/lib$(NAME)
 | 
			
		||||
ALLHEADERS := $(subst $(SRC_DIR)/,$(SUBDIR),$(wildcard $(SRC_DIR)/*.h $(SRC_DIR)/$(ARCH)/*.h))
 | 
			
		||||
SKIPHEADERS += $(ARCH_HEADERS:%=$(ARCH)/%) $(SKIPHEADERS-)
 | 
			
		||||
SKIPHEADERS := $(SKIPHEADERS:%=$(SUBDIR)%)
 | 
			
		||||
@@ -133,31 +111,30 @@ checkheaders: $(HOBJS)
 | 
			
		||||
alltools: $(TOOLS)
 | 
			
		||||
 | 
			
		||||
$(HOSTOBJS): %.o: %.c
 | 
			
		||||
	$(COMPILE_HOSTC)
 | 
			
		||||
	$(call COMPILE,HOSTCC)
 | 
			
		||||
 | 
			
		||||
$(HOSTPROGS): %$(HOSTEXESUF): %.o
 | 
			
		||||
	$(HOSTLD) $(HOSTLDFLAGS) $(HOSTLD_O) $^ $(HOSTLIBS)
 | 
			
		||||
	$(HOSTLD) $(HOSTLDFLAGS) $(HOSTLD_O) $< $(HOSTLIBS)
 | 
			
		||||
 | 
			
		||||
$(OBJS):     | $(sort $(dir $(OBJS)))
 | 
			
		||||
$(HOBJS):    | $(sort $(dir $(HOBJS)))
 | 
			
		||||
$(HOSTOBJS): | $(sort $(dir $(HOSTOBJS)))
 | 
			
		||||
$(SLIBOBJS): | $(sort $(dir $(SLIBOBJS)))
 | 
			
		||||
$(TESTOBJS): | $(sort $(dir $(TESTOBJS)))
 | 
			
		||||
$(TOOLOBJS): | tools
 | 
			
		||||
 | 
			
		||||
OBJDIRS := $(OBJDIRS) $(dir $(OBJS) $(HOBJS) $(HOSTOBJS) $(SLIBOBJS) $(TESTOBJS))
 | 
			
		||||
OBJDIRS := $(OBJDIRS) $(dir $(OBJS) $(HOBJS) $(HOSTOBJS) $(TESTOBJS))
 | 
			
		||||
 | 
			
		||||
CLEANSUFFIXES     = *.d *.o *~ *.h.c *.map *.ver *.ho *.gcno *.gcda *$(DEFAULT_YASMD).asm
 | 
			
		||||
CLEANSUFFIXES     = *.d *.o *~ *.h.c *.map *.ver *.ho *.gcno *.gcda
 | 
			
		||||
DISTCLEANSUFFIXES = *.pc
 | 
			
		||||
LIBSUFFIXES       = *.a *.lib *.so *.so.* *.dylib *.dll *.def *.dll.a
 | 
			
		||||
 | 
			
		||||
define RULES
 | 
			
		||||
clean::
 | 
			
		||||
	$(RM) $(OBJS) $(OBJS:.o=.d) $(OBJS:.o=$(DEFAULT_YASMD).d)
 | 
			
		||||
	$(RM) $(OBJS) $(OBJS:.o=.d)
 | 
			
		||||
	$(RM) $(HOSTPROGS)
 | 
			
		||||
	$(RM) $(TOOLS)
 | 
			
		||||
endef
 | 
			
		||||
 | 
			
		||||
$(eval $(RULES))
 | 
			
		||||
 | 
			
		||||
-include $(wildcard $(OBJS:.o=.d) $(HOSTOBJS:.o=.d) $(TESTOBJS:.o=.d) $(HOBJS:.o=.d) $(SLIBOBJS:.o=.d)) $(OBJS:.o=$(DEFAULT_YASMD).d)
 | 
			
		||||
-include $(wildcard $(OBJS:.o=.d) $(HOSTOBJS:.o=.d) $(TESTOBJS:.o=.d) $(HOBJS:.o=.d))
 | 
			
		||||
 
 | 
			
		||||
@@ -1,31 +0,0 @@
 | 
			
		||||
/*
 | 
			
		||||
 * Work around the class() function in AIX math.h clashing with
 | 
			
		||||
 * identifiers named "class".
 | 
			
		||||
 *
 | 
			
		||||
 * This file is part of FFmpeg.
 | 
			
		||||
 *
 | 
			
		||||
 * FFmpeg is free software; you can redistribute it and/or
 | 
			
		||||
 * modify it under the terms of the GNU Lesser General Public
 | 
			
		||||
 * License as published by the Free Software Foundation; either
 | 
			
		||||
 * version 2.1 of the License, or (at your option) any later version.
 | 
			
		||||
 *
 | 
			
		||||
 * FFmpeg is distributed in the hope that it will be useful,
 | 
			
		||||
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 | 
			
		||||
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 | 
			
		||||
 * Lesser General Public License for more details.
 | 
			
		||||
 *
 | 
			
		||||
 * You should have received a copy of the GNU Lesser General Public
 | 
			
		||||
 * License along with FFmpeg; if not, write to the Free Software
 | 
			
		||||
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
#ifndef FFMPEG_COMPAT_AIX_MATH_H
 | 
			
		||||
#define FFMPEG_COMPAT_AIX_MATH_H
 | 
			
		||||
 | 
			
		||||
#define class class_in_math_h_causes_problems
 | 
			
		||||
 | 
			
		||||
#include_next <math.h>
 | 
			
		||||
 | 
			
		||||
#undef class
 | 
			
		||||
 | 
			
		||||
#endif /* FFMPEG_COMPAT_AIX_MATH_H */
 | 
			
		||||
@@ -1,882 +0,0 @@
 | 
			
		||||
// Avisynth C Interface Version 0.20
 | 
			
		||||
// Copyright 2003 Kevin Atkinson
 | 
			
		||||
 | 
			
		||||
// This program is free software; you can redistribute it and/or modify
 | 
			
		||||
// it under the terms of the GNU General Public License as published by
 | 
			
		||||
// the Free Software Foundation; either version 2 of the License, or
 | 
			
		||||
// (at your option) any later version.
 | 
			
		||||
//
 | 
			
		||||
// This program is distributed in the hope that it will be useful,
 | 
			
		||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
 | 
			
		||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 | 
			
		||||
// GNU General Public License for more details.
 | 
			
		||||
//
 | 
			
		||||
// You should have received a copy of the GNU General Public License
 | 
			
		||||
// along with this program; if not, write to the Free Software
 | 
			
		||||
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 | 
			
		||||
// MA 02110-1301 USA, or visit
 | 
			
		||||
// http://www.gnu.org/copyleft/gpl.html .
 | 
			
		||||
//
 | 
			
		||||
// As a special exception, I give you permission to link to the
 | 
			
		||||
// Avisynth C interface with independent modules that communicate with
 | 
			
		||||
// the Avisynth C interface solely through the interfaces defined in
 | 
			
		||||
// avisynth_c.h, regardless of the license terms of these independent
 | 
			
		||||
// modules, and to copy and distribute the resulting combined work
 | 
			
		||||
// under terms of your choice, provided that every copy of the
 | 
			
		||||
// combined work is accompanied by a complete copy of the source code
 | 
			
		||||
// of the Avisynth C interface and Avisynth itself (with the version
 | 
			
		||||
// used to produce the combined work), being distributed under the
 | 
			
		||||
// terms of the GNU General Public License plus this exception.  An
 | 
			
		||||
// independent module is a module which is not derived from or based
 | 
			
		||||
// on Avisynth C Interface, such as 3rd-party filters, import and
 | 
			
		||||
// export plugins, or graphical user interfaces.
 | 
			
		||||
 | 
			
		||||
// NOTE: this is a partial update of the Avisynth C interface to recognize
 | 
			
		||||
// new color spaces added in Avisynth 2.60. By no means is this document
 | 
			
		||||
// completely Avisynth 2.60 compliant.
 | 
			
		||||
 | 
			
		||||
#ifndef __AVISYNTH_C__
 | 
			
		||||
#define __AVISYNTH_C__
 | 
			
		||||
 | 
			
		||||
#include "avs/config.h"
 | 
			
		||||
#include "avs/capi.h"
 | 
			
		||||
#include "avs/types.h"
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
/////////////////////////////////////////////////////////////////////
 | 
			
		||||
//
 | 
			
		||||
// Constants
 | 
			
		||||
//
 | 
			
		||||
 | 
			
		||||
#ifndef __AVISYNTH_6_H__
 | 
			
		||||
enum { AVISYNTH_INTERFACE_VERSION = 6 };
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
enum {AVS_SAMPLE_INT8  = 1<<0,
 | 
			
		||||
      AVS_SAMPLE_INT16 = 1<<1,
 | 
			
		||||
      AVS_SAMPLE_INT24 = 1<<2,
 | 
			
		||||
      AVS_SAMPLE_INT32 = 1<<3,
 | 
			
		||||
      AVS_SAMPLE_FLOAT = 1<<4};
 | 
			
		||||
 | 
			
		||||
enum {AVS_PLANAR_Y=1<<0,
 | 
			
		||||
      AVS_PLANAR_U=1<<1,
 | 
			
		||||
      AVS_PLANAR_V=1<<2,
 | 
			
		||||
      AVS_PLANAR_ALIGNED=1<<3,
 | 
			
		||||
      AVS_PLANAR_Y_ALIGNED=AVS_PLANAR_Y|AVS_PLANAR_ALIGNED,
 | 
			
		||||
      AVS_PLANAR_U_ALIGNED=AVS_PLANAR_U|AVS_PLANAR_ALIGNED,
 | 
			
		||||
      AVS_PLANAR_V_ALIGNED=AVS_PLANAR_V|AVS_PLANAR_ALIGNED,
 | 
			
		||||
      AVS_PLANAR_A=1<<4,
 | 
			
		||||
      AVS_PLANAR_R=1<<5,
 | 
			
		||||
      AVS_PLANAR_G=1<<6,
 | 
			
		||||
      AVS_PLANAR_B=1<<7,
 | 
			
		||||
      AVS_PLANAR_A_ALIGNED=AVS_PLANAR_A|AVS_PLANAR_ALIGNED,
 | 
			
		||||
      AVS_PLANAR_R_ALIGNED=AVS_PLANAR_R|AVS_PLANAR_ALIGNED,
 | 
			
		||||
      AVS_PLANAR_G_ALIGNED=AVS_PLANAR_G|AVS_PLANAR_ALIGNED,
 | 
			
		||||
      AVS_PLANAR_B_ALIGNED=AVS_PLANAR_B|AVS_PLANAR_ALIGNED};
 | 
			
		||||
 | 
			
		||||
  // Colorspace properties.
 | 
			
		||||
enum {AVS_CS_BGR = 1<<28,
 | 
			
		||||
      AVS_CS_YUV = 1<<29,
 | 
			
		||||
      AVS_CS_INTERLEAVED = 1<<30,
 | 
			
		||||
      AVS_CS_PLANAR = 1<<31,
 | 
			
		||||
 | 
			
		||||
      AVS_CS_SHIFT_SUB_WIDTH   = 0,
 | 
			
		||||
      AVS_CS_SHIFT_SUB_HEIGHT  = 8,
 | 
			
		||||
      AVS_CS_SHIFT_SAMPLE_BITS = 16,
 | 
			
		||||
 | 
			
		||||
      AVS_CS_SUB_WIDTH_MASK    = 7 << AVS_CS_SHIFT_SUB_WIDTH,
 | 
			
		||||
      AVS_CS_SUB_WIDTH_1       = 3 << AVS_CS_SHIFT_SUB_WIDTH, // YV24
 | 
			
		||||
      AVS_CS_SUB_WIDTH_2       = 0 << AVS_CS_SHIFT_SUB_WIDTH, // YV12, I420, YV16
 | 
			
		||||
      AVS_CS_SUB_WIDTH_4       = 1 << AVS_CS_SHIFT_SUB_WIDTH, // YUV9, YV411
 | 
			
		||||
 | 
			
		||||
      AVS_CS_VPLANEFIRST       = 1 << 3, // YV12, YV16, YV24, YV411, YUV9
 | 
			
		||||
      AVS_CS_UPLANEFIRST       = 1 << 4, // I420
 | 
			
		||||
 | 
			
		||||
      AVS_CS_SUB_HEIGHT_MASK   = 7 << AVS_CS_SHIFT_SUB_HEIGHT,
 | 
			
		||||
      AVS_CS_SUB_HEIGHT_1      = 3 << AVS_CS_SHIFT_SUB_HEIGHT, // YV16, YV24, YV411
 | 
			
		||||
      AVS_CS_SUB_HEIGHT_2      = 0 << AVS_CS_SHIFT_SUB_HEIGHT, // YV12, I420
 | 
			
		||||
      AVS_CS_SUB_HEIGHT_4      = 1 << AVS_CS_SHIFT_SUB_HEIGHT, // YUV9
 | 
			
		||||
 | 
			
		||||
      AVS_CS_SAMPLE_BITS_MASK  = 7 << AVS_CS_SHIFT_SAMPLE_BITS,
 | 
			
		||||
      AVS_CS_SAMPLE_BITS_8     = 0 << AVS_CS_SHIFT_SAMPLE_BITS,
 | 
			
		||||
      AVS_CS_SAMPLE_BITS_16    = 1 << AVS_CS_SHIFT_SAMPLE_BITS,
 | 
			
		||||
      AVS_CS_SAMPLE_BITS_32    = 2 << AVS_CS_SHIFT_SAMPLE_BITS,
 | 
			
		||||
 | 
			
		||||
      AVS_CS_PLANAR_MASK       = AVS_CS_PLANAR | AVS_CS_INTERLEAVED | AVS_CS_YUV | AVS_CS_BGR | AVS_CS_SAMPLE_BITS_MASK | AVS_CS_SUB_HEIGHT_MASK | AVS_CS_SUB_WIDTH_MASK,
 | 
			
		||||
      AVS_CS_PLANAR_FILTER     = ~( AVS_CS_VPLANEFIRST | AVS_CS_UPLANEFIRST )};
 | 
			
		||||
 | 
			
		||||
  // Specific colorformats
 | 
			
		||||
enum {
 | 
			
		||||
  AVS_CS_UNKNOWN = 0,
 | 
			
		||||
  AVS_CS_BGR24 = 1<<0 | AVS_CS_BGR | AVS_CS_INTERLEAVED,
 | 
			
		||||
  AVS_CS_BGR32 = 1<<1 | AVS_CS_BGR | AVS_CS_INTERLEAVED,
 | 
			
		||||
  AVS_CS_YUY2 = 1<<2 | AVS_CS_YUV | AVS_CS_INTERLEAVED,
 | 
			
		||||
  //  AVS_CS_YV12  = 1<<3  Reserved
 | 
			
		||||
  //  AVS_CS_I420  = 1<<4  Reserved
 | 
			
		||||
  AVS_CS_RAW32 = 1<<5 | AVS_CS_INTERLEAVED,
 | 
			
		||||
 | 
			
		||||
  AVS_CS_YV24  = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_VPLANEFIRST | AVS_CS_SUB_HEIGHT_1 | AVS_CS_SUB_WIDTH_1,  // YVU 4:4:4 planar
 | 
			
		||||
  AVS_CS_YV16  = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_VPLANEFIRST | AVS_CS_SUB_HEIGHT_1 | AVS_CS_SUB_WIDTH_2,  // YVU 4:2:2 planar
 | 
			
		||||
  AVS_CS_YV12  = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_VPLANEFIRST | AVS_CS_SUB_HEIGHT_2 | AVS_CS_SUB_WIDTH_2,  // YVU 4:2:0 planar
 | 
			
		||||
  AVS_CS_I420  = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_UPLANEFIRST | AVS_CS_SUB_HEIGHT_2 | AVS_CS_SUB_WIDTH_2,  // YUV 4:2:0 planar
 | 
			
		||||
  AVS_CS_IYUV  = AVS_CS_I420,
 | 
			
		||||
  AVS_CS_YV411 = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_VPLANEFIRST | AVS_CS_SUB_HEIGHT_1 | AVS_CS_SUB_WIDTH_4,  // YVU 4:1:1 planar
 | 
			
		||||
  AVS_CS_YUV9  = AVS_CS_PLANAR | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8 | AVS_CS_VPLANEFIRST | AVS_CS_SUB_HEIGHT_4 | AVS_CS_SUB_WIDTH_4,  // YVU 4:1:0 planar
 | 
			
		||||
  AVS_CS_Y8    = AVS_CS_PLANAR | AVS_CS_INTERLEAVED | AVS_CS_YUV | AVS_CS_SAMPLE_BITS_8                                              // Y   4:0:0 planar
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
enum {
 | 
			
		||||
  AVS_IT_BFF = 1<<0,
 | 
			
		||||
  AVS_IT_TFF = 1<<1,
 | 
			
		||||
  AVS_IT_FIELDBASED = 1<<2};
 | 
			
		||||
 | 
			
		||||
enum {
 | 
			
		||||
  AVS_FILTER_TYPE=1,
 | 
			
		||||
  AVS_FILTER_INPUT_COLORSPACE=2,
 | 
			
		||||
  AVS_FILTER_OUTPUT_TYPE=9,
 | 
			
		||||
  AVS_FILTER_NAME=4,
 | 
			
		||||
  AVS_FILTER_AUTHOR=5,
 | 
			
		||||
  AVS_FILTER_VERSION=6,
 | 
			
		||||
  AVS_FILTER_ARGS=7,
 | 
			
		||||
  AVS_FILTER_ARGS_INFO=8,
 | 
			
		||||
  AVS_FILTER_ARGS_DESCRIPTION=10,
 | 
			
		||||
  AVS_FILTER_DESCRIPTION=11};
 | 
			
		||||
 | 
			
		||||
enum {  //SUBTYPES
 | 
			
		||||
  AVS_FILTER_TYPE_AUDIO=1,
 | 
			
		||||
  AVS_FILTER_TYPE_VIDEO=2,
 | 
			
		||||
  AVS_FILTER_OUTPUT_TYPE_SAME=3,
 | 
			
		||||
  AVS_FILTER_OUTPUT_TYPE_DIFFERENT=4};
 | 
			
		||||
 | 
			
		||||
enum {
 | 
			
		||||
  // New 2.6 explicitly defined cache hints.
 | 
			
		||||
  AVS_CACHE_NOTHING=10, // Do not cache video.
 | 
			
		||||
  AVS_CACHE_WINDOW=11, // Hard protect upto X frames within a range of X from the current frame N.
 | 
			
		||||
  AVS_CACHE_GENERIC=12, // LRU cache upto X frames.
 | 
			
		||||
  AVS_CACHE_FORCE_GENERIC=13, // LRU cache upto X frames, override any previous CACHE_WINDOW.
 | 
			
		||||
 | 
			
		||||
  AVS_CACHE_GET_POLICY=30, // Get the current policy.
 | 
			
		||||
  AVS_CACHE_GET_WINDOW=31, // Get the current window h_span.
 | 
			
		||||
  AVS_CACHE_GET_RANGE=32, // Get the current generic frame range.
 | 
			
		||||
 | 
			
		||||
  AVS_CACHE_AUDIO=50, // Explicitly do cache audio, X byte cache.
 | 
			
		||||
  AVS_CACHE_AUDIO_NOTHING=51, // Explicitly do not cache audio.
 | 
			
		||||
  AVS_CACHE_AUDIO_NONE=52, // Audio cache off (auto mode), X byte intial cache.
 | 
			
		||||
  AVS_CACHE_AUDIO_AUTO=53, // Audio cache on (auto mode), X byte intial cache.
 | 
			
		||||
 | 
			
		||||
  AVS_CACHE_GET_AUDIO_POLICY=70, // Get the current audio policy.
 | 
			
		||||
  AVS_CACHE_GET_AUDIO_SIZE=71, // Get the current audio cache size.
 | 
			
		||||
 | 
			
		||||
  AVS_CACHE_PREFETCH_FRAME=100, // Queue request to prefetch frame N.
 | 
			
		||||
  AVS_CACHE_PREFETCH_GO=101, // Action video prefetches.
 | 
			
		||||
 | 
			
		||||
  AVS_CACHE_PREFETCH_AUDIO_BEGIN=120, // Begin queue request transaction to prefetch audio (take critical section).
 | 
			
		||||
  AVS_CACHE_PREFETCH_AUDIO_STARTLO=121, // Set low 32 bits of start.
 | 
			
		||||
  AVS_CACHE_PREFETCH_AUDIO_STARTHI=122, // Set high 32 bits of start.
 | 
			
		||||
  AVS_CACHE_PREFETCH_AUDIO_COUNT=123, // Set low 32 bits of length.
 | 
			
		||||
  AVS_CACHE_PREFETCH_AUDIO_COMMIT=124, // Enqueue request transaction to prefetch audio (release critical section).
 | 
			
		||||
  AVS_CACHE_PREFETCH_AUDIO_GO=125, // Action audio prefetches.
 | 
			
		||||
 | 
			
		||||
  AVS_CACHE_GETCHILD_CACHE_MODE=200, // Cache ask Child for desired video cache mode.
 | 
			
		||||
  AVS_CACHE_GETCHILD_CACHE_SIZE=201, // Cache ask Child for desired video cache size.
 | 
			
		||||
  AVS_CACHE_GETCHILD_AUDIO_MODE=202, // Cache ask Child for desired audio cache mode.
 | 
			
		||||
  AVS_CACHE_GETCHILD_AUDIO_SIZE=203, // Cache ask Child for desired audio cache size.
 | 
			
		||||
 | 
			
		||||
  AVS_CACHE_GETCHILD_COST=220, // Cache ask Child for estimated processing cost.
 | 
			
		||||
    AVS_CACHE_COST_ZERO=221, // Child response of zero cost (ptr arithmetic only).
 | 
			
		||||
    AVS_CACHE_COST_UNIT=222, // Child response of unit cost (less than or equal 1 full frame blit).
 | 
			
		||||
    AVS_CACHE_COST_LOW=223, // Child response of light cost. (Fast)
 | 
			
		||||
    AVS_CACHE_COST_MED=224, // Child response of medium cost. (Real time)
 | 
			
		||||
    AVS_CACHE_COST_HI=225, // Child response of heavy cost. (Slow)
 | 
			
		||||
 | 
			
		||||
  AVS_CACHE_GETCHILD_THREAD_MODE=240, // Cache ask Child for thread safetyness.
 | 
			
		||||
    AVS_CACHE_THREAD_UNSAFE=241, // Only 1 thread allowed for all instances. 2.5 filters default!
 | 
			
		||||
    AVS_CACHE_THREAD_CLASS=242, // Only 1 thread allowed for each instance. 2.6 filters default!
 | 
			
		||||
    AVS_CACHE_THREAD_SAFE=243, //  Allow all threads in any instance.
 | 
			
		||||
    AVS_CACHE_THREAD_OWN=244, // Safe but limit to 1 thread, internally threaded.
 | 
			
		||||
 | 
			
		||||
  AVS_CACHE_GETCHILD_ACCESS_COST=260, // Cache ask Child for preferred access pattern.
 | 
			
		||||
    AVS_CACHE_ACCESS_RAND=261, // Filter is access order agnostic.
 | 
			
		||||
    AVS_CACHE_ACCESS_SEQ0=262, // Filter prefers sequential access (low cost)
 | 
			
		||||
    AVS_CACHE_ACCESS_SEQ1=263, // Filter needs sequential access (high cost)
 | 
			
		||||
  };
 | 
			
		||||
 | 
			
		||||
#ifdef BUILDING_AVSCORE
 | 
			
		||||
struct AVS_ScriptEnvironment {
 | 
			
		||||
        IScriptEnvironment * env;
 | 
			
		||||
        const char * error;
 | 
			
		||||
        AVS_ScriptEnvironment(IScriptEnvironment * e = 0)
 | 
			
		||||
                : env(e), error(0) {}
 | 
			
		||||
};
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
typedef struct AVS_Clip AVS_Clip;
 | 
			
		||||
typedef struct AVS_ScriptEnvironment AVS_ScriptEnvironment;
 | 
			
		||||
 | 
			
		||||
/////////////////////////////////////////////////////////////////////
 | 
			
		||||
//
 | 
			
		||||
// AVS_VideoInfo
 | 
			
		||||
//
 | 
			
		||||
 | 
			
		||||
// AVS_VideoInfo is layed out identicly to VideoInfo
 | 
			
		||||
typedef struct AVS_VideoInfo {
 | 
			
		||||
  int width, height;    // width=0 means no video
 | 
			
		||||
  unsigned fps_numerator, fps_denominator;
 | 
			
		||||
  int num_frames;
 | 
			
		||||
 | 
			
		||||
  int pixel_type;
 | 
			
		||||
 | 
			
		||||
  int audio_samples_per_second;   // 0 means no audio
 | 
			
		||||
  int sample_type;
 | 
			
		||||
  INT64 num_audio_samples;
 | 
			
		||||
  int nchannels;
 | 
			
		||||
 | 
			
		||||
  // Imagetype properties
 | 
			
		||||
 | 
			
		||||
  int image_type;
 | 
			
		||||
} AVS_VideoInfo;
 | 
			
		||||
 | 
			
		||||
// useful functions of the above
 | 
			
		||||
AVSC_INLINE int avs_has_video(const AVS_VideoInfo * p)
 | 
			
		||||
        { return (p->width!=0); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_has_audio(const AVS_VideoInfo * p)
 | 
			
		||||
        { return (p->audio_samples_per_second!=0); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_is_rgb(const AVS_VideoInfo * p)
 | 
			
		||||
        { return !!(p->pixel_type&AVS_CS_BGR); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_is_rgb24(const AVS_VideoInfo * p)
 | 
			
		||||
        { return (p->pixel_type&AVS_CS_BGR24)==AVS_CS_BGR24; } // Clear out additional properties
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_is_rgb32(const AVS_VideoInfo * p)
 | 
			
		||||
        { return (p->pixel_type & AVS_CS_BGR32) == AVS_CS_BGR32 ; }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_is_yuv(const AVS_VideoInfo * p)
 | 
			
		||||
        { return !!(p->pixel_type&AVS_CS_YUV ); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_is_yuy2(const AVS_VideoInfo * p)
 | 
			
		||||
        { return (p->pixel_type & AVS_CS_YUY2) == AVS_CS_YUY2; }
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_is_yv24)(const AVS_VideoInfo * p);
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_is_yv16)(const AVS_VideoInfo * p);
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_is_yv12)(const AVS_VideoInfo * p) ;
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_is_yv411)(const AVS_VideoInfo * p);
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_is_y8)(const AVS_VideoInfo * p);
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_is_property(const AVS_VideoInfo * p, int property)
 | 
			
		||||
        { return ((p->image_type & property)==property ); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_is_planar(const AVS_VideoInfo * p)
 | 
			
		||||
        { return !!(p->pixel_type & AVS_CS_PLANAR); }
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_is_color_space)(const AVS_VideoInfo * p, int c_space);
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_is_field_based(const AVS_VideoInfo * p)
 | 
			
		||||
        { return !!(p->image_type & AVS_IT_FIELDBASED); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_is_parity_known(const AVS_VideoInfo * p)
 | 
			
		||||
        { return ((p->image_type & AVS_IT_FIELDBASED)&&(p->image_type & (AVS_IT_BFF | AVS_IT_TFF))); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_is_bff(const AVS_VideoInfo * p)
 | 
			
		||||
        { return !!(p->image_type & AVS_IT_BFF); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_is_tff(const AVS_VideoInfo * p)
 | 
			
		||||
        { return !!(p->image_type & AVS_IT_TFF); }
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_get_plane_width_subsampling)(const AVS_VideoInfo * p, int plane);
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_get_plane_height_subsampling)(const AVS_VideoInfo * p, int plane);
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_bits_per_pixel)(const AVS_VideoInfo * p);
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_bytes_from_pixels)(const AVS_VideoInfo * p, int pixels);
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_row_size)(const AVS_VideoInfo * p, int plane);
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_bmp_size)(const AVS_VideoInfo * vi);
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_samples_per_second(const AVS_VideoInfo * p)
 | 
			
		||||
        { return p->audio_samples_per_second; }
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_bytes_per_channel_sample(const AVS_VideoInfo * p)
 | 
			
		||||
{
 | 
			
		||||
    switch (p->sample_type) {
 | 
			
		||||
      case AVS_SAMPLE_INT8:  return sizeof(signed char);
 | 
			
		||||
      case AVS_SAMPLE_INT16: return sizeof(signed short);
 | 
			
		||||
      case AVS_SAMPLE_INT24: return 3;
 | 
			
		||||
      case AVS_SAMPLE_INT32: return sizeof(signed int);
 | 
			
		||||
      case AVS_SAMPLE_FLOAT: return sizeof(float);
 | 
			
		||||
      default: return 0;
 | 
			
		||||
    }
 | 
			
		||||
}
 | 
			
		||||
AVSC_INLINE int avs_bytes_per_audio_sample(const AVS_VideoInfo * p)
 | 
			
		||||
        { return p->nchannels*avs_bytes_per_channel_sample(p);}
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE INT64 avs_audio_samples_from_frames(const AVS_VideoInfo * p, INT64 frames)
 | 
			
		||||
        { return ((INT64)(frames) * p->audio_samples_per_second * p->fps_denominator / p->fps_numerator); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_frames_from_audio_samples(const AVS_VideoInfo * p, INT64 samples)
 | 
			
		||||
        { return (int)(samples * (INT64)p->fps_numerator / (INT64)p->fps_denominator / (INT64)p->audio_samples_per_second); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE INT64 avs_audio_samples_from_bytes(const AVS_VideoInfo * p, INT64 bytes)
 | 
			
		||||
        { return bytes / avs_bytes_per_audio_sample(p); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE INT64 avs_bytes_from_audio_samples(const AVS_VideoInfo * p, INT64 samples)
 | 
			
		||||
        { return samples * avs_bytes_per_audio_sample(p); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_audio_channels(const AVS_VideoInfo * p)
 | 
			
		||||
        { return p->nchannels; }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_sample_type(const AVS_VideoInfo * p)
 | 
			
		||||
        { return p->sample_type;}
 | 
			
		||||
 | 
			
		||||
// useful mutator
 | 
			
		||||
AVSC_INLINE void avs_set_property(AVS_VideoInfo * p, int property)
 | 
			
		||||
        { p->image_type|=property; }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE void avs_clear_property(AVS_VideoInfo * p, int property)
 | 
			
		||||
        { p->image_type&=~property; }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE void avs_set_field_based(AVS_VideoInfo * p, int isfieldbased)
 | 
			
		||||
        { if (isfieldbased) p->image_type|=AVS_IT_FIELDBASED; else p->image_type&=~AVS_IT_FIELDBASED; }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE void avs_set_fps(AVS_VideoInfo * p, unsigned numerator, unsigned denominator)
 | 
			
		||||
{
 | 
			
		||||
    unsigned x=numerator, y=denominator;
 | 
			
		||||
    while (y) {   // find gcd
 | 
			
		||||
      unsigned t = x%y; x = y; y = t;
 | 
			
		||||
    }
 | 
			
		||||
    p->fps_numerator = numerator/x;
 | 
			
		||||
    p->fps_denominator = denominator/x;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
#ifdef AVS_IMPLICIT_FUNCTION_DECLARATION_ERROR
 | 
			
		||||
AVSC_INLINE int avs_is_same_colorspace(AVS_VideoInfo * x, AVS_VideoInfo * y)
 | 
			
		||||
{
 | 
			
		||||
        return (x->pixel_type == y->pixel_type)
 | 
			
		||||
                || (avs_is_yv12(x) && avs_is_yv12(y));
 | 
			
		||||
}
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
/////////////////////////////////////////////////////////////////////
 | 
			
		||||
//
 | 
			
		||||
// AVS_VideoFrame
 | 
			
		||||
//
 | 
			
		||||
 | 
			
		||||
// VideoFrameBuffer holds information about a memory block which is used
 | 
			
		||||
// for video data.  For efficiency, instances of this class are not deleted
 | 
			
		||||
// when the refcount reaches zero; instead they're stored in a linked list
 | 
			
		||||
// to be reused.  The instances are deleted when the corresponding AVS
 | 
			
		||||
// file is closed.
 | 
			
		||||
 | 
			
		||||
// AVS_VideoFrameBuffer is layed out identicly to VideoFrameBuffer
 | 
			
		||||
// DO NOT USE THIS STRUCTURE DIRECTLY
 | 
			
		||||
typedef struct AVS_VideoFrameBuffer {
 | 
			
		||||
  BYTE * data;
 | 
			
		||||
  int data_size;
 | 
			
		||||
  // sequence_number is incremented every time the buffer is changed, so
 | 
			
		||||
  // that stale views can tell they're no longer valid.
 | 
			
		||||
  volatile long sequence_number;
 | 
			
		||||
 | 
			
		||||
  volatile long refcount;
 | 
			
		||||
} AVS_VideoFrameBuffer;
 | 
			
		||||
 | 
			
		||||
// VideoFrame holds a "window" into a VideoFrameBuffer.
 | 
			
		||||
 | 
			
		||||
// AVS_VideoFrame is layed out identicly to IVideoFrame
 | 
			
		||||
// DO NOT USE THIS STRUCTURE DIRECTLY
 | 
			
		||||
typedef struct AVS_VideoFrame {
 | 
			
		||||
  volatile long refcount;
 | 
			
		||||
  AVS_VideoFrameBuffer * vfb;
 | 
			
		||||
  int offset, pitch, row_size, height, offsetU, offsetV, pitchUV;  // U&V offsets are from top of picture.
 | 
			
		||||
  int row_sizeUV, heightUV;
 | 
			
		||||
} AVS_VideoFrame;
 | 
			
		||||
 | 
			
		||||
// Access functions for AVS_VideoFrame
 | 
			
		||||
AVSC_API(int, avs_get_pitch_p)(const AVS_VideoFrame * p, int plane);
 | 
			
		||||
 | 
			
		||||
#ifdef AVS_IMPLICIT_FUNCTION_DECLARATION_ERROR
 | 
			
		||||
AVSC_INLINE int avs_get_pitch(const AVS_VideoFrame * p) {
 | 
			
		||||
        return avs_get_pitch_p(p, 0);}
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_get_row_size_p)(const AVS_VideoFrame * p, int plane);
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_get_row_size(const AVS_VideoFrame * p) {
 | 
			
		||||
        return p->row_size; }
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_get_height_p)(const AVS_VideoFrame * p, int plane);
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_get_height(const AVS_VideoFrame * p) {
 | 
			
		||||
        return p->height;}
 | 
			
		||||
 | 
			
		||||
AVSC_API(const BYTE *, avs_get_read_ptr_p)(const AVS_VideoFrame * p, int plane);
 | 
			
		||||
 | 
			
		||||
#ifdef AVS_IMPLICIT_FUNCTION_DECLARATION_ERROR
 | 
			
		||||
AVSC_INLINE const BYTE* avs_get_read_ptr(const AVS_VideoFrame * p) {
 | 
			
		||||
        return avs_get_read_ptr_p(p, 0);}
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_is_writable)(const AVS_VideoFrame * p);
 | 
			
		||||
 | 
			
		||||
AVSC_API(BYTE *, avs_get_write_ptr_p)(const AVS_VideoFrame * p, int plane);
 | 
			
		||||
 | 
			
		||||
#ifdef AVS_IMPLICIT_FUNCTION_DECLARATION_ERROR
 | 
			
		||||
AVSC_INLINE BYTE* avs_get_write_ptr(const AVS_VideoFrame * p) {
 | 
			
		||||
        return avs_get_write_ptr_p(p, 0);}
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
AVSC_API(void, avs_release_video_frame)(AVS_VideoFrame *);
 | 
			
		||||
// makes a shallow copy of a video frame
 | 
			
		||||
AVSC_API(AVS_VideoFrame *, avs_copy_video_frame)(AVS_VideoFrame *);
 | 
			
		||||
 | 
			
		||||
#ifndef AVSC_NO_DECLSPEC
 | 
			
		||||
AVSC_INLINE void avs_release_frame(AVS_VideoFrame * f)
 | 
			
		||||
  {avs_release_video_frame(f);}
 | 
			
		||||
AVSC_INLINE AVS_VideoFrame * avs_copy_frame(AVS_VideoFrame * f)
 | 
			
		||||
  {return avs_copy_video_frame(f);}
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
/////////////////////////////////////////////////////////////////////
 | 
			
		||||
//
 | 
			
		||||
// AVS_Value
 | 
			
		||||
//
 | 
			
		||||
 | 
			
		||||
// Treat AVS_Value as a fat pointer.  That is use avs_copy_value
 | 
			
		||||
// and avs_release_value appropiaty as you would if AVS_Value was
 | 
			
		||||
// a pointer.
 | 
			
		||||
 | 
			
		||||
// To maintain source code compatibility with future versions of the
 | 
			
		||||
// avisynth_c API don't use the AVS_Value directly.  Use the helper
 | 
			
		||||
// functions below.
 | 
			
		||||
 | 
			
		||||
// AVS_Value is layed out identicly to AVSValue
 | 
			
		||||
typedef struct AVS_Value AVS_Value;
 | 
			
		||||
struct AVS_Value {
 | 
			
		||||
  short type;  // 'a'rray, 'c'lip, 'b'ool, 'i'nt, 'f'loat, 's'tring, 'v'oid, or 'l'ong
 | 
			
		||||
               // for some function e'rror
 | 
			
		||||
  short array_size;
 | 
			
		||||
  union {
 | 
			
		||||
    void * clip; // do not use directly, use avs_take_clip
 | 
			
		||||
    char boolean;
 | 
			
		||||
    int integer;
 | 
			
		||||
    float floating_pt;
 | 
			
		||||
    const char * string;
 | 
			
		||||
    const AVS_Value * array;
 | 
			
		||||
  } d;
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
// AVS_Value should be initilized with avs_void.
 | 
			
		||||
// Should also set to avs_void after the value is released
 | 
			
		||||
// with avs_copy_value.  Consider it the equalvent of setting
 | 
			
		||||
// a pointer to NULL
 | 
			
		||||
static const AVS_Value avs_void = {'v'};
 | 
			
		||||
 | 
			
		||||
AVSC_API(void, avs_copy_value)(AVS_Value * dest, AVS_Value src);
 | 
			
		||||
AVSC_API(void, avs_release_value)(AVS_Value);
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_defined(AVS_Value v) { return v.type != 'v'; }
 | 
			
		||||
AVSC_INLINE int avs_is_clip(AVS_Value v) { return v.type == 'c'; }
 | 
			
		||||
AVSC_INLINE int avs_is_bool(AVS_Value v) { return v.type == 'b'; }
 | 
			
		||||
AVSC_INLINE int avs_is_int(AVS_Value v) { return v.type == 'i'; }
 | 
			
		||||
AVSC_INLINE int avs_is_float(AVS_Value v) { return v.type == 'f' || v.type == 'i'; }
 | 
			
		||||
AVSC_INLINE int avs_is_string(AVS_Value v) { return v.type == 's'; }
 | 
			
		||||
AVSC_INLINE int avs_is_array(AVS_Value v) { return v.type == 'a'; }
 | 
			
		||||
AVSC_INLINE int avs_is_error(AVS_Value v) { return v.type == 'e'; }
 | 
			
		||||
 | 
			
		||||
AVSC_API(AVS_Clip *, avs_take_clip)(AVS_Value, AVS_ScriptEnvironment *);
 | 
			
		||||
AVSC_API(void, avs_set_to_clip)(AVS_Value *, AVS_Clip *);
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_as_bool(AVS_Value v)
 | 
			
		||||
        { return v.d.boolean; }
 | 
			
		||||
AVSC_INLINE int avs_as_int(AVS_Value v)
 | 
			
		||||
        { return v.d.integer; }
 | 
			
		||||
AVSC_INLINE const char * avs_as_string(AVS_Value v)
 | 
			
		||||
        { return avs_is_error(v) || avs_is_string(v) ? v.d.string : 0; }
 | 
			
		||||
AVSC_INLINE double avs_as_float(AVS_Value v)
 | 
			
		||||
        { return avs_is_int(v) ? v.d.integer : v.d.floating_pt; }
 | 
			
		||||
AVSC_INLINE const char * avs_as_error(AVS_Value v)
 | 
			
		||||
        { return avs_is_error(v) ? v.d.string : 0; }
 | 
			
		||||
AVSC_INLINE const AVS_Value * avs_as_array(AVS_Value v)
 | 
			
		||||
        { return v.d.array; }
 | 
			
		||||
AVSC_INLINE int avs_array_size(AVS_Value v)
 | 
			
		||||
        { return avs_is_array(v) ? v.array_size : 1; }
 | 
			
		||||
AVSC_INLINE AVS_Value avs_array_elt(AVS_Value v, int index)
 | 
			
		||||
        { return avs_is_array(v) ? v.d.array[index] : v; }
 | 
			
		||||
 | 
			
		||||
// only use these functions on an AVS_Value that does not already have
 | 
			
		||||
// an active value.  Remember, treat AVS_Value as a fat pointer.
 | 
			
		||||
AVSC_INLINE AVS_Value avs_new_value_bool(int v0)
 | 
			
		||||
        { AVS_Value v; v.type = 'b'; v.d.boolean = v0 == 0 ? 0 : 1; return v; }
 | 
			
		||||
AVSC_INLINE AVS_Value avs_new_value_int(int v0)
 | 
			
		||||
        { AVS_Value v; v.type = 'i'; v.d.integer = v0; return v; }
 | 
			
		||||
AVSC_INLINE AVS_Value avs_new_value_string(const char * v0)
 | 
			
		||||
        { AVS_Value v; v.type = 's'; v.d.string = v0; return v; }
 | 
			
		||||
AVSC_INLINE AVS_Value avs_new_value_float(float v0)
 | 
			
		||||
        { AVS_Value v; v.type = 'f'; v.d.floating_pt = v0; return v;}
 | 
			
		||||
AVSC_INLINE AVS_Value avs_new_value_error(const char * v0)
 | 
			
		||||
        { AVS_Value v; v.type = 'e'; v.d.string = v0; return v; }
 | 
			
		||||
#ifndef AVSC_NO_DECLSPEC
 | 
			
		||||
AVSC_INLINE AVS_Value avs_new_value_clip(AVS_Clip * v0)
 | 
			
		||||
        { AVS_Value v; avs_set_to_clip(&v, v0); return v; }
 | 
			
		||||
#endif
 | 
			
		||||
AVSC_INLINE AVS_Value avs_new_value_array(AVS_Value * v0, int size)
 | 
			
		||||
        { AVS_Value v; v.type = 'a'; v.d.array = v0; v.array_size = size; return v; }
 | 
			
		||||
 | 
			
		||||
/////////////////////////////////////////////////////////////////////
 | 
			
		||||
//
 | 
			
		||||
// AVS_Clip
 | 
			
		||||
//
 | 
			
		||||
 | 
			
		||||
AVSC_API(void, avs_release_clip)(AVS_Clip *);
 | 
			
		||||
AVSC_API(AVS_Clip *, avs_copy_clip)(AVS_Clip *);
 | 
			
		||||
 | 
			
		||||
AVSC_API(const char *, avs_clip_get_error)(AVS_Clip *); // return 0 if no error
 | 
			
		||||
 | 
			
		||||
AVSC_API(const AVS_VideoInfo *, avs_get_video_info)(AVS_Clip *);
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_get_version)(AVS_Clip *);
 | 
			
		||||
 | 
			
		||||
AVSC_API(AVS_VideoFrame *, avs_get_frame)(AVS_Clip *, int n);
 | 
			
		||||
// The returned video frame must be released with avs_release_video_frame
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_get_parity)(AVS_Clip *, int n);
 | 
			
		||||
// return field parity if field_based, else parity of first field in frame
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_get_audio)(AVS_Clip *, void * buf,
 | 
			
		||||
                             INT64 start, INT64 count);
 | 
			
		||||
// start and count are in samples
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_set_cache_hints)(AVS_Clip *,
 | 
			
		||||
                                   int cachehints, int frame_range);
 | 
			
		||||
 | 
			
		||||
// This is the callback type used by avs_add_function
 | 
			
		||||
typedef AVS_Value (AVSC_CC * AVS_ApplyFunc)
 | 
			
		||||
                        (AVS_ScriptEnvironment *, AVS_Value args, void * user_data);
 | 
			
		||||
 | 
			
		||||
typedef struct AVS_FilterInfo AVS_FilterInfo;
 | 
			
		||||
struct AVS_FilterInfo
 | 
			
		||||
{
 | 
			
		||||
  // these members should not be modified outside of the AVS_ApplyFunc callback
 | 
			
		||||
  AVS_Clip * child;
 | 
			
		||||
  AVS_VideoInfo vi;
 | 
			
		||||
  AVS_ScriptEnvironment * env;
 | 
			
		||||
  AVS_VideoFrame * (AVSC_CC * get_frame)(AVS_FilterInfo *, int n);
 | 
			
		||||
  int (AVSC_CC * get_parity)(AVS_FilterInfo *, int n);
 | 
			
		||||
  int (AVSC_CC * get_audio)(AVS_FilterInfo *, void * buf,
 | 
			
		||||
                                  INT64 start, INT64 count);
 | 
			
		||||
  int (AVSC_CC * set_cache_hints)(AVS_FilterInfo *, int cachehints,
 | 
			
		||||
                                        int frame_range);
 | 
			
		||||
  void (AVSC_CC * free_filter)(AVS_FilterInfo *);
 | 
			
		||||
 | 
			
		||||
  // Should be set when ever there is an error to report.
 | 
			
		||||
  // It is cleared before any of the above methods are called
 | 
			
		||||
  const char * error;
 | 
			
		||||
  // this is to store whatever and may be modified at will
 | 
			
		||||
  void * user_data;
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
// Create a new filter
 | 
			
		||||
// fi is set to point to the AVS_FilterInfo so that you can
 | 
			
		||||
//   modify it once it is initilized.
 | 
			
		||||
// store_child should generally be set to true.  If it is not
 | 
			
		||||
//    set than ALL methods (the function pointers) must be defined
 | 
			
		||||
// If it is set than you do not need to worry about freeing the child
 | 
			
		||||
//    clip.
 | 
			
		||||
AVSC_API(AVS_Clip *, avs_new_c_filter)(AVS_ScriptEnvironment * e,
 | 
			
		||||
                                       AVS_FilterInfo * * fi,
 | 
			
		||||
                                       AVS_Value child, int store_child);
 | 
			
		||||
 | 
			
		||||
/////////////////////////////////////////////////////////////////////
 | 
			
		||||
//
 | 
			
		||||
// AVS_ScriptEnvironment
 | 
			
		||||
//
 | 
			
		||||
 | 
			
		||||
// For GetCPUFlags.  These are backwards-compatible with those in VirtualDub.
 | 
			
		||||
enum {
 | 
			
		||||
                                /* slowest CPU to support extension */
 | 
			
		||||
  AVS_CPU_FORCE        = 0x01,   // N/A
 | 
			
		||||
  AVS_CPU_FPU          = 0x02,   // 386/486DX
 | 
			
		||||
  AVS_CPU_MMX          = 0x04,   // P55C, K6, PII
 | 
			
		||||
  AVS_CPU_INTEGER_SSE  = 0x08,   // PIII, Athlon
 | 
			
		||||
  AVS_CPU_SSE          = 0x10,   // PIII, Athlon XP/MP
 | 
			
		||||
  AVS_CPU_SSE2         = 0x20,   // PIV, Hammer
 | 
			
		||||
  AVS_CPU_3DNOW        = 0x40,   // K6-2
 | 
			
		||||
  AVS_CPU_3DNOW_EXT    = 0x80,   // Athlon
 | 
			
		||||
  AVS_CPU_X86_64       = 0xA0,   // Hammer (note: equiv. to 3DNow + SSE2,
 | 
			
		||||
                                 // which only Hammer will have anyway)
 | 
			
		||||
  AVS_CPUF_SSE3       = 0x100,   //  PIV+, K8 Venice
 | 
			
		||||
  AVS_CPUF_SSSE3      = 0x200,   //  Core 2
 | 
			
		||||
  AVS_CPUF_SSE4       = 0x400,   //  Penryn, Wolfdale, Yorkfield
 | 
			
		||||
  AVS_CPUF_SSE4_1     = 0x400,
 | 
			
		||||
//AVS_CPUF_AVX        = 0x800,   //  Sandy Bridge, Bulldozer
 | 
			
		||||
  AVS_CPUF_SSE4_2    = 0x1000,   //  Nehalem
 | 
			
		||||
//AVS_CPUF_AVX2      = 0x2000,   //  Haswell
 | 
			
		||||
//AVS_CPUF_AVX512    = 0x4000,   //  Knights Landing
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
AVSC_API(const char *, avs_get_error)(AVS_ScriptEnvironment *); // return 0 if no error
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_get_cpu_flags)(AVS_ScriptEnvironment *);
 | 
			
		||||
AVSC_API(int, avs_check_version)(AVS_ScriptEnvironment *, int version);
 | 
			
		||||
 | 
			
		||||
AVSC_API(char *, avs_save_string)(AVS_ScriptEnvironment *, const char* s, int length);
 | 
			
		||||
AVSC_API(char *, avs_sprintf)(AVS_ScriptEnvironment *, const char * fmt, ...);
 | 
			
		||||
 | 
			
		||||
AVSC_API(char *, avs_vsprintf)(AVS_ScriptEnvironment *, const char * fmt, void* val);
 | 
			
		||||
 // note: val is really a va_list; I hope everyone typedefs va_list to a pointer
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_add_function)(AVS_ScriptEnvironment *,
 | 
			
		||||
                                const char * name, const char * params,
 | 
			
		||||
                                AVS_ApplyFunc apply, void * user_data);
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_function_exists)(AVS_ScriptEnvironment *, const char * name);
 | 
			
		||||
 | 
			
		||||
AVSC_API(AVS_Value, avs_invoke)(AVS_ScriptEnvironment *, const char * name,
 | 
			
		||||
                               AVS_Value args, const char** arg_names);
 | 
			
		||||
// The returned value must be be released with avs_release_value
 | 
			
		||||
 | 
			
		||||
AVSC_API(AVS_Value, avs_get_var)(AVS_ScriptEnvironment *, const char* name);
 | 
			
		||||
// The returned value must be be released with avs_release_value
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_set_var)(AVS_ScriptEnvironment *, const char* name, AVS_Value val);
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_set_global_var)(AVS_ScriptEnvironment *, const char* name, const AVS_Value val);
 | 
			
		||||
 | 
			
		||||
//void avs_push_context(AVS_ScriptEnvironment *, int level=0);
 | 
			
		||||
//void avs_pop_context(AVS_ScriptEnvironment *);
 | 
			
		||||
 | 
			
		||||
AVSC_API(AVS_VideoFrame *, avs_new_video_frame_a)(AVS_ScriptEnvironment *,
 | 
			
		||||
                                          const AVS_VideoInfo * vi, int align);
 | 
			
		||||
// align should be at least 16
 | 
			
		||||
 | 
			
		||||
#ifndef AVSC_NO_DECLSPEC
 | 
			
		||||
AVSC_INLINE
 | 
			
		||||
AVS_VideoFrame * avs_new_video_frame(AVS_ScriptEnvironment * env,
 | 
			
		||||
                                     const AVS_VideoInfo * vi)
 | 
			
		||||
  {return avs_new_video_frame_a(env,vi,FRAME_ALIGN);}
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE
 | 
			
		||||
AVS_VideoFrame * avs_new_frame(AVS_ScriptEnvironment * env,
 | 
			
		||||
                               const AVS_VideoInfo * vi)
 | 
			
		||||
  {return avs_new_video_frame_a(env,vi,FRAME_ALIGN);}
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_make_writable)(AVS_ScriptEnvironment *, AVS_VideoFrame * * pvf);
 | 
			
		||||
 | 
			
		||||
AVSC_API(void, avs_bit_blt)(AVS_ScriptEnvironment *, BYTE* dstp, int dst_pitch, const BYTE* srcp, int src_pitch, int row_size, int height);
 | 
			
		||||
 | 
			
		||||
typedef void (AVSC_CC *AVS_ShutdownFunc)(void* user_data, AVS_ScriptEnvironment * env);
 | 
			
		||||
AVSC_API(void, avs_at_exit)(AVS_ScriptEnvironment *, AVS_ShutdownFunc function, void * user_data);
 | 
			
		||||
 | 
			
		||||
AVSC_API(AVS_VideoFrame *, avs_subframe)(AVS_ScriptEnvironment *, AVS_VideoFrame * src, int rel_offset, int new_pitch, int new_row_size, int new_height);
 | 
			
		||||
// The returned video frame must be be released
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_set_memory_max)(AVS_ScriptEnvironment *, int mem);
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_set_working_dir)(AVS_ScriptEnvironment *, const char * newdir);
 | 
			
		||||
 | 
			
		||||
// avisynth.dll exports this; it's a way to use it as a library, without
 | 
			
		||||
// writing an AVS script or without going through AVIFile.
 | 
			
		||||
AVSC_API(AVS_ScriptEnvironment *, avs_create_script_environment)(int version);
 | 
			
		||||
 | 
			
		||||
// this symbol is the entry point for the plugin and must
 | 
			
		||||
// be defined
 | 
			
		||||
AVSC_EXPORT
 | 
			
		||||
const char * AVSC_CC avisynth_c_plugin_init(AVS_ScriptEnvironment* env);
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
AVSC_API(void, avs_delete_script_environment)(AVS_ScriptEnvironment *);
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
AVSC_API(AVS_VideoFrame *, avs_subframe_planar)(AVS_ScriptEnvironment *, AVS_VideoFrame * src, int rel_offset, int new_pitch, int new_row_size, int new_height, int rel_offsetU, int rel_offsetV, int new_pitchUV);
 | 
			
		||||
// The returned video frame must be be released
 | 
			
		||||
 | 
			
		||||
#ifdef AVSC_NO_DECLSPEC
 | 
			
		||||
// use LoadLibrary and related functions to dynamically load Avisynth instead of declspec(dllimport)
 | 
			
		||||
/*
 | 
			
		||||
  The following functions needs to have been declared, probably from windows.h
 | 
			
		||||
 | 
			
		||||
  void* malloc(size_t)
 | 
			
		||||
  void free(void*);
 | 
			
		||||
 | 
			
		||||
  HMODULE LoadLibrary(const char*);
 | 
			
		||||
  void* GetProcAddress(HMODULE, const char*);
 | 
			
		||||
  FreeLibrary(HMODULE);
 | 
			
		||||
*/
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
typedef struct AVS_Library AVS_Library;
 | 
			
		||||
 | 
			
		||||
#define AVSC_DECLARE_FUNC(name) name##_func name
 | 
			
		||||
 | 
			
		||||
struct AVS_Library {
 | 
			
		||||
  HMODULE handle;
 | 
			
		||||
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_add_function);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_at_exit);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_bit_blt);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_check_version);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_clip_get_error);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_copy_clip);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_copy_value);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_copy_video_frame);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_create_script_environment);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_delete_script_environment);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_function_exists);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_get_audio);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_get_cpu_flags);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_get_frame);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_get_parity);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_get_var);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_get_version);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_get_video_info);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_invoke);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_make_writable);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_new_c_filter);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_new_video_frame_a);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_release_clip);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_release_value);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_release_video_frame);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_save_string);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_set_cache_hints);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_set_global_var);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_set_memory_max);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_set_to_clip);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_set_var);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_set_working_dir);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_sprintf);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_subframe);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_subframe_planar);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_take_clip);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_vsprintf);
 | 
			
		||||
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_get_error);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_is_yv24);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_is_yv16);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_is_yv12);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_is_yv411);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_is_y8);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_is_color_space);
 | 
			
		||||
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_get_plane_width_subsampling);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_get_plane_height_subsampling);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_bits_per_pixel);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_bytes_from_pixels);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_row_size);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_bmp_size);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_get_pitch_p);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_get_row_size_p);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_get_height_p);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_get_read_ptr_p);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_is_writable);
 | 
			
		||||
  AVSC_DECLARE_FUNC(avs_get_write_ptr_p);
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
#undef AVSC_DECLARE_FUNC
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE AVS_Library * avs_load_library() {
 | 
			
		||||
  AVS_Library *library = (AVS_Library *)malloc(sizeof(AVS_Library));
 | 
			
		||||
  if (library == NULL)
 | 
			
		||||
    return NULL;
 | 
			
		||||
  library->handle = LoadLibrary("avisynth");
 | 
			
		||||
  if (library->handle == NULL)
 | 
			
		||||
    goto fail;
 | 
			
		||||
 | 
			
		||||
#define __AVSC_STRINGIFY(x) #x
 | 
			
		||||
#define AVSC_STRINGIFY(x) __AVSC_STRINGIFY(x)
 | 
			
		||||
#define AVSC_LOAD_FUNC(name) {\
 | 
			
		||||
  library->name = (name##_func) GetProcAddress(library->handle, AVSC_STRINGIFY(name));\
 | 
			
		||||
  if (library->name == NULL)\
 | 
			
		||||
    goto fail;\
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_add_function);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_at_exit);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_bit_blt);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_check_version);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_clip_get_error);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_copy_clip);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_copy_value);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_copy_video_frame);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_create_script_environment);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_delete_script_environment);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_function_exists);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_get_audio);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_get_cpu_flags);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_get_frame);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_get_parity);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_get_var);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_get_version);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_get_video_info);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_invoke);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_make_writable);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_new_c_filter);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_new_video_frame_a);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_release_clip);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_release_value);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_release_video_frame);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_save_string);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_set_cache_hints);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_set_global_var);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_set_memory_max);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_set_to_clip);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_set_var);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_set_working_dir);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_sprintf);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_subframe);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_subframe_planar);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_take_clip);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_vsprintf);
 | 
			
		||||
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_get_error);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_is_yv24);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_is_yv16);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_is_yv12);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_is_yv411);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_is_y8);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_is_color_space);
 | 
			
		||||
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_get_plane_width_subsampling);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_get_plane_height_subsampling);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_bits_per_pixel);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_bytes_from_pixels);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_row_size);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_bmp_size);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_get_pitch_p);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_get_row_size_p);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_get_height_p);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_get_read_ptr_p);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_is_writable);
 | 
			
		||||
  AVSC_LOAD_FUNC(avs_get_write_ptr_p);
 | 
			
		||||
 | 
			
		||||
#undef __AVSC_STRINGIFY
 | 
			
		||||
#undef AVSC_STRINGIFY
 | 
			
		||||
#undef AVSC_LOAD_FUNC
 | 
			
		||||
 | 
			
		||||
  return library;
 | 
			
		||||
 | 
			
		||||
fail:
 | 
			
		||||
  free(library);
 | 
			
		||||
  return NULL;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE void avs_free_library(AVS_Library *library) {
 | 
			
		||||
  if (library == NULL)
 | 
			
		||||
    return;
 | 
			
		||||
  FreeLibrary(library->handle);
 | 
			
		||||
  free(library);
 | 
			
		||||
}
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
#endif
 | 
			
		||||
@@ -1,62 +0,0 @@
 | 
			
		||||
// Avisynth C Interface Version 0.20
 | 
			
		||||
// Copyright 2003 Kevin Atkinson
 | 
			
		||||
 | 
			
		||||
// This program is free software; you can redistribute it and/or modify
 | 
			
		||||
// it under the terms of the GNU General Public License as published by
 | 
			
		||||
// the Free Software Foundation; either version 2 of the License, or
 | 
			
		||||
// (at your option) any later version.
 | 
			
		||||
//
 | 
			
		||||
// This program is distributed in the hope that it will be useful,
 | 
			
		||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
 | 
			
		||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 | 
			
		||||
// GNU General Public License for more details.
 | 
			
		||||
//
 | 
			
		||||
// You should have received a copy of the GNU General Public License
 | 
			
		||||
// along with this program; if not, write to the Free Software
 | 
			
		||||
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA, or visit
 | 
			
		||||
// http://www.gnu.org/copyleft/gpl.html .
 | 
			
		||||
//
 | 
			
		||||
// As a special exception, I give you permission to link to the
 | 
			
		||||
// Avisynth C interface with independent modules that communicate with
 | 
			
		||||
// the Avisynth C interface solely through the interfaces defined in
 | 
			
		||||
// avisynth_c.h, regardless of the license terms of these independent
 | 
			
		||||
// modules, and to copy and distribute the resulting combined work
 | 
			
		||||
// under terms of your choice, provided that every copy of the
 | 
			
		||||
// combined work is accompanied by a complete copy of the source code
 | 
			
		||||
// of the Avisynth C interface and Avisynth itself (with the version
 | 
			
		||||
// used to produce the combined work), being distributed under the
 | 
			
		||||
// terms of the GNU General Public License plus this exception.  An
 | 
			
		||||
// independent module is a module which is not derived from or based
 | 
			
		||||
// on Avisynth C Interface, such as 3rd-party filters, import and
 | 
			
		||||
// export plugins, or graphical user interfaces.
 | 
			
		||||
 | 
			
		||||
#ifndef AVS_CAPI_H
 | 
			
		||||
#define AVS_CAPI_H
 | 
			
		||||
 | 
			
		||||
#ifdef __cplusplus
 | 
			
		||||
#  define EXTERN_C extern "C"
 | 
			
		||||
#else
 | 
			
		||||
#  define EXTERN_C
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
#ifndef AVSC_USE_STDCALL
 | 
			
		||||
#  define AVSC_CC __cdecl
 | 
			
		||||
#else
 | 
			
		||||
#  define AVSC_CC __stdcall
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
#define AVSC_INLINE static __inline
 | 
			
		||||
 | 
			
		||||
#ifdef BUILDING_AVSCORE
 | 
			
		||||
#  define AVSC_EXPORT EXTERN_C
 | 
			
		||||
#  define AVSC_API(ret, name) EXTERN_C __declspec(dllexport) ret AVSC_CC name
 | 
			
		||||
#else
 | 
			
		||||
#  define AVSC_EXPORT EXTERN_C __declspec(dllexport)
 | 
			
		||||
#  ifndef AVSC_NO_DECLSPEC
 | 
			
		||||
#    define AVSC_API(ret, name) EXTERN_C __declspec(dllimport) ret AVSC_CC name
 | 
			
		||||
#  else
 | 
			
		||||
#    define AVSC_API(ret, name) typedef ret (AVSC_CC *name##_func)
 | 
			
		||||
#  endif
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
#endif //AVS_CAPI_H
 | 
			
		||||
@@ -1,55 +0,0 @@
 | 
			
		||||
// Avisynth C Interface Version 0.20
 | 
			
		||||
// Copyright 2003 Kevin Atkinson
 | 
			
		||||
 | 
			
		||||
// This program is free software; you can redistribute it and/or modify
 | 
			
		||||
// it under the terms of the GNU General Public License as published by
 | 
			
		||||
// the Free Software Foundation; either version 2 of the License, or
 | 
			
		||||
// (at your option) any later version.
 | 
			
		||||
//
 | 
			
		||||
// This program is distributed in the hope that it will be useful,
 | 
			
		||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
 | 
			
		||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 | 
			
		||||
// GNU General Public License for more details.
 | 
			
		||||
//
 | 
			
		||||
// You should have received a copy of the GNU General Public License
 | 
			
		||||
// along with this program; if not, write to the Free Software
 | 
			
		||||
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA, or visit
 | 
			
		||||
// http://www.gnu.org/copyleft/gpl.html .
 | 
			
		||||
//
 | 
			
		||||
// As a special exception, I give you permission to link to the
 | 
			
		||||
// Avisynth C interface with independent modules that communicate with
 | 
			
		||||
// the Avisynth C interface solely through the interfaces defined in
 | 
			
		||||
// avisynth_c.h, regardless of the license terms of these independent
 | 
			
		||||
// modules, and to copy and distribute the resulting combined work
 | 
			
		||||
// under terms of your choice, provided that every copy of the
 | 
			
		||||
// combined work is accompanied by a complete copy of the source code
 | 
			
		||||
// of the Avisynth C interface and Avisynth itself (with the version
 | 
			
		||||
// used to produce the combined work), being distributed under the
 | 
			
		||||
// terms of the GNU General Public License plus this exception.  An
 | 
			
		||||
// independent module is a module which is not derived from or based
 | 
			
		||||
// on Avisynth C Interface, such as 3rd-party filters, import and
 | 
			
		||||
// export plugins, or graphical user interfaces.
 | 
			
		||||
 | 
			
		||||
#ifndef AVS_CONFIG_H
 | 
			
		||||
#define AVS_CONFIG_H
 | 
			
		||||
 | 
			
		||||
// Undefine this to get cdecl calling convention
 | 
			
		||||
#define AVSC_USE_STDCALL 1
 | 
			
		||||
 | 
			
		||||
// NOTE TO PLUGIN AUTHORS:
 | 
			
		||||
// Because FRAME_ALIGN can be substantially higher than the alignment
 | 
			
		||||
// a plugin actually needs, plugins should not use FRAME_ALIGN to check for
 | 
			
		||||
// alignment. They should always request the exact alignment value they need.
 | 
			
		||||
// This is to make sure that plugins work over the widest range of AviSynth
 | 
			
		||||
// builds possible.
 | 
			
		||||
#define FRAME_ALIGN 32
 | 
			
		||||
 | 
			
		||||
#if   defined(_M_AMD64) || defined(__x86_64)
 | 
			
		||||
#   define X86_64
 | 
			
		||||
#elif defined(_M_IX86) || defined(__i386__)
 | 
			
		||||
#   define X86_32
 | 
			
		||||
#else
 | 
			
		||||
#   error Unsupported CPU architecture.
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
#endif //AVS_CONFIG_H
 | 
			
		||||
@@ -1,51 +0,0 @@
 | 
			
		||||
// Avisynth C Interface Version 0.20
 | 
			
		||||
// Copyright 2003 Kevin Atkinson
 | 
			
		||||
 | 
			
		||||
// This program is free software; you can redistribute it and/or modify
 | 
			
		||||
// it under the terms of the GNU General Public License as published by
 | 
			
		||||
// the Free Software Foundation; either version 2 of the License, or
 | 
			
		||||
// (at your option) any later version.
 | 
			
		||||
//
 | 
			
		||||
// This program is distributed in the hope that it will be useful,
 | 
			
		||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
 | 
			
		||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 | 
			
		||||
// GNU General Public License for more details.
 | 
			
		||||
//
 | 
			
		||||
// You should have received a copy of the GNU General Public License
 | 
			
		||||
// along with this program; if not, write to the Free Software
 | 
			
		||||
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA, or visit
 | 
			
		||||
// http://www.gnu.org/copyleft/gpl.html .
 | 
			
		||||
//
 | 
			
		||||
// As a special exception, I give you permission to link to the
 | 
			
		||||
// Avisynth C interface with independent modules that communicate with
 | 
			
		||||
// the Avisynth C interface solely through the interfaces defined in
 | 
			
		||||
// avisynth_c.h, regardless of the license terms of these independent
 | 
			
		||||
// modules, and to copy and distribute the resulting combined work
 | 
			
		||||
// under terms of your choice, provided that every copy of the
 | 
			
		||||
// combined work is accompanied by a complete copy of the source code
 | 
			
		||||
// of the Avisynth C interface and Avisynth itself (with the version
 | 
			
		||||
// used to produce the combined work), being distributed under the
 | 
			
		||||
// terms of the GNU General Public License plus this exception.  An
 | 
			
		||||
// independent module is a module which is not derived from or based
 | 
			
		||||
// on Avisynth C Interface, such as 3rd-party filters, import and
 | 
			
		||||
// export plugins, or graphical user interfaces.
 | 
			
		||||
 | 
			
		||||
#ifndef AVS_TYPES_H
 | 
			
		||||
#define AVS_TYPES_H
 | 
			
		||||
 | 
			
		||||
// Define all types necessary for interfacing with avisynth.dll
 | 
			
		||||
 | 
			
		||||
// Raster types used by VirtualDub & Avisynth
 | 
			
		||||
typedef unsigned int    Pixel32;
 | 
			
		||||
typedef unsigned char   BYTE;
 | 
			
		||||
 | 
			
		||||
// Audio Sample information
 | 
			
		||||
typedef float SFLOAT;
 | 
			
		||||
 | 
			
		||||
#ifdef __GNUC__
 | 
			
		||||
typedef long long int INT64;
 | 
			
		||||
#else
 | 
			
		||||
typedef __int64 INT64;
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
#endif //AVS_TYPES_H
 | 
			
		||||
@@ -1,728 +0,0 @@
 | 
			
		||||
// Avisynth C Interface Version 0.20
 | 
			
		||||
// Copyright 2003 Kevin Atkinson
 | 
			
		||||
 | 
			
		||||
// This program is free software; you can redistribute it and/or modify
 | 
			
		||||
// it under the terms of the GNU General Public License as published by
 | 
			
		||||
// the Free Software Foundation; either version 2 of the License, or
 | 
			
		||||
// (at your option) any later version.
 | 
			
		||||
//
 | 
			
		||||
// This program is distributed in the hope that it will be useful,
 | 
			
		||||
// but WITHOUT ANY WARRANTY; without even the implied warranty of
 | 
			
		||||
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 | 
			
		||||
// GNU General Public License for more details.
 | 
			
		||||
//
 | 
			
		||||
// You should have received a copy of the GNU General Public License
 | 
			
		||||
// along with this program; if not, write to the Free Software
 | 
			
		||||
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 | 
			
		||||
// MA 02110-1301 USA, or visit
 | 
			
		||||
// http://www.gnu.org/copyleft/gpl.html .
 | 
			
		||||
//
 | 
			
		||||
// As a special exception, I give you permission to link to the
 | 
			
		||||
// Avisynth C interface with independent modules that communicate with
 | 
			
		||||
// the Avisynth C interface solely through the interfaces defined in
 | 
			
		||||
// avisynth_c.h, regardless of the license terms of these independent
 | 
			
		||||
// modules, and to copy and distribute the resulting combined work
 | 
			
		||||
// under terms of your choice, provided that every copy of the
 | 
			
		||||
// combined work is accompanied by a complete copy of the source code
 | 
			
		||||
// of the Avisynth C interface and Avisynth itself (with the version
 | 
			
		||||
// used to produce the combined work), being distributed under the
 | 
			
		||||
// terms of the GNU General Public License plus this exception.  An
 | 
			
		||||
// independent module is a module which is not derived from or based
 | 
			
		||||
// on Avisynth C Interface, such as 3rd-party filters, import and
 | 
			
		||||
// export plugins, or graphical user interfaces.
 | 
			
		||||
 | 
			
		||||
#ifndef __AVXSYNTH_C__
 | 
			
		||||
#define __AVXSYNTH_C__
 | 
			
		||||
 | 
			
		||||
#include "windowsPorts/windows2linux.h"
 | 
			
		||||
#include <stdarg.h>
 | 
			
		||||
 | 
			
		||||
#ifdef __cplusplus
 | 
			
		||||
#  define EXTERN_C extern "C"
 | 
			
		||||
#else
 | 
			
		||||
#  define EXTERN_C
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
#define AVSC_USE_STDCALL 1
 | 
			
		||||
 | 
			
		||||
#ifndef AVSC_USE_STDCALL
 | 
			
		||||
#  define AVSC_CC __cdecl
 | 
			
		||||
#else
 | 
			
		||||
#  define AVSC_CC __stdcall
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
#define AVSC_INLINE static __inline
 | 
			
		||||
 | 
			
		||||
#ifdef AVISYNTH_C_EXPORTS
 | 
			
		||||
#  define AVSC_EXPORT EXTERN_C
 | 
			
		||||
#  define AVSC_API(ret, name) EXTERN_C __declspec(dllexport) ret AVSC_CC name
 | 
			
		||||
#else
 | 
			
		||||
#  define AVSC_EXPORT EXTERN_C __declspec(dllexport)
 | 
			
		||||
#  ifndef AVSC_NO_DECLSPEC
 | 
			
		||||
#    define AVSC_API(ret, name) EXTERN_C __declspec(dllimport) ret AVSC_CC name
 | 
			
		||||
#  else
 | 
			
		||||
#    define AVSC_API(ret, name) typedef ret (AVSC_CC *name##_func)
 | 
			
		||||
#  endif
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
#ifdef __GNUC__
 | 
			
		||||
typedef long long int INT64;
 | 
			
		||||
#else
 | 
			
		||||
typedef __int64 INT64;
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
/////////////////////////////////////////////////////////////////////
 | 
			
		||||
//
 | 
			
		||||
// Constants
 | 
			
		||||
//
 | 
			
		||||
 | 
			
		||||
#ifndef __AVXSYNTH_H__
 | 
			
		||||
enum { AVISYNTH_INTERFACE_VERSION = 3 };
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
enum {AVS_SAMPLE_INT8  = 1<<0,
 | 
			
		||||
      AVS_SAMPLE_INT16 = 1<<1,
 | 
			
		||||
      AVS_SAMPLE_INT24 = 1<<2,
 | 
			
		||||
      AVS_SAMPLE_INT32 = 1<<3,
 | 
			
		||||
      AVS_SAMPLE_FLOAT = 1<<4};
 | 
			
		||||
 | 
			
		||||
enum {AVS_PLANAR_Y=1<<0,
 | 
			
		||||
      AVS_PLANAR_U=1<<1,
 | 
			
		||||
      AVS_PLANAR_V=1<<2,
 | 
			
		||||
      AVS_PLANAR_ALIGNED=1<<3,
 | 
			
		||||
      AVS_PLANAR_Y_ALIGNED=AVS_PLANAR_Y|AVS_PLANAR_ALIGNED,
 | 
			
		||||
      AVS_PLANAR_U_ALIGNED=AVS_PLANAR_U|AVS_PLANAR_ALIGNED,
 | 
			
		||||
      AVS_PLANAR_V_ALIGNED=AVS_PLANAR_V|AVS_PLANAR_ALIGNED};
 | 
			
		||||
 | 
			
		||||
  // Colorspace properties.
 | 
			
		||||
enum {AVS_CS_BGR = 1<<28,
 | 
			
		||||
      AVS_CS_YUV = 1<<29,
 | 
			
		||||
      AVS_CS_INTERLEAVED = 1<<30,
 | 
			
		||||
      AVS_CS_PLANAR = 1<<31};
 | 
			
		||||
 | 
			
		||||
  // Specific colorformats
 | 
			
		||||
enum {
 | 
			
		||||
  AVS_CS_UNKNOWN = 0,
 | 
			
		||||
  AVS_CS_BGR24 = 1<<0 | AVS_CS_BGR | AVS_CS_INTERLEAVED,
 | 
			
		||||
  AVS_CS_BGR32 = 1<<1 | AVS_CS_BGR | AVS_CS_INTERLEAVED,
 | 
			
		||||
  AVS_CS_YUY2 = 1<<2 | AVS_CS_YUV | AVS_CS_INTERLEAVED,
 | 
			
		||||
  AVS_CS_YV12 = 1<<3 | AVS_CS_YUV | AVS_CS_PLANAR,  // y-v-u, planar
 | 
			
		||||
  AVS_CS_I420 = 1<<4 | AVS_CS_YUV | AVS_CS_PLANAR,  // y-u-v, planar
 | 
			
		||||
  AVS_CS_IYUV = 1<<4 | AVS_CS_YUV | AVS_CS_PLANAR  // same as above
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
enum {
 | 
			
		||||
  AVS_IT_BFF = 1<<0,
 | 
			
		||||
  AVS_IT_TFF = 1<<1,
 | 
			
		||||
  AVS_IT_FIELDBASED = 1<<2};
 | 
			
		||||
 | 
			
		||||
enum {
 | 
			
		||||
  AVS_FILTER_TYPE=1,
 | 
			
		||||
  AVS_FILTER_INPUT_COLORSPACE=2,
 | 
			
		||||
  AVS_FILTER_OUTPUT_TYPE=9,
 | 
			
		||||
  AVS_FILTER_NAME=4,
 | 
			
		||||
  AVS_FILTER_AUTHOR=5,
 | 
			
		||||
  AVS_FILTER_VERSION=6,
 | 
			
		||||
  AVS_FILTER_ARGS=7,
 | 
			
		||||
  AVS_FILTER_ARGS_INFO=8,
 | 
			
		||||
  AVS_FILTER_ARGS_DESCRIPTION=10,
 | 
			
		||||
  AVS_FILTER_DESCRIPTION=11};
 | 
			
		||||
 | 
			
		||||
enum {  //SUBTYPES
 | 
			
		||||
  AVS_FILTER_TYPE_AUDIO=1,
 | 
			
		||||
  AVS_FILTER_TYPE_VIDEO=2,
 | 
			
		||||
  AVS_FILTER_OUTPUT_TYPE_SAME=3,
 | 
			
		||||
  AVS_FILTER_OUTPUT_TYPE_DIFFERENT=4};
 | 
			
		||||
 | 
			
		||||
enum {
 | 
			
		||||
  AVS_CACHE_NOTHING=0,
 | 
			
		||||
  AVS_CACHE_RANGE=1,
 | 
			
		||||
  AVS_CACHE_ALL=2,
 | 
			
		||||
  AVS_CACHE_AUDIO=3,
 | 
			
		||||
  AVS_CACHE_AUDIO_NONE=4,
 | 
			
		||||
  AVS_CACHE_AUDIO_AUTO=5
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
#define AVS_FRAME_ALIGN 16
 | 
			
		||||
 | 
			
		||||
typedef struct AVS_Clip AVS_Clip;
 | 
			
		||||
typedef struct AVS_ScriptEnvironment AVS_ScriptEnvironment;
 | 
			
		||||
 | 
			
		||||
/////////////////////////////////////////////////////////////////////
 | 
			
		||||
//
 | 
			
		||||
// AVS_VideoInfo
 | 
			
		||||
//
 | 
			
		||||
 | 
			
		||||
// AVS_VideoInfo is layed out identicly to VideoInfo
 | 
			
		||||
typedef struct AVS_VideoInfo {
 | 
			
		||||
  int width, height;    // width=0 means no video
 | 
			
		||||
  unsigned fps_numerator, fps_denominator;
 | 
			
		||||
  int num_frames;
 | 
			
		||||
 | 
			
		||||
  int pixel_type;
 | 
			
		||||
 | 
			
		||||
  int audio_samples_per_second;   // 0 means no audio
 | 
			
		||||
  int sample_type;
 | 
			
		||||
  INT64 num_audio_samples;
 | 
			
		||||
  int nchannels;
 | 
			
		||||
 | 
			
		||||
  // Imagetype properties
 | 
			
		||||
 | 
			
		||||
  int image_type;
 | 
			
		||||
} AVS_VideoInfo;
 | 
			
		||||
 | 
			
		||||
// useful functions of the above
 | 
			
		||||
AVSC_INLINE int avs_has_video(const AVS_VideoInfo * p)
 | 
			
		||||
        { return (p->width!=0); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_has_audio(const AVS_VideoInfo * p)
 | 
			
		||||
        { return (p->audio_samples_per_second!=0); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_is_rgb(const AVS_VideoInfo * p)
 | 
			
		||||
        { return !!(p->pixel_type&AVS_CS_BGR); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_is_rgb24(const AVS_VideoInfo * p)
 | 
			
		||||
        { return (p->pixel_type&AVS_CS_BGR24)==AVS_CS_BGR24; } // Clear out additional properties
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_is_rgb32(const AVS_VideoInfo * p)
 | 
			
		||||
        { return (p->pixel_type & AVS_CS_BGR32) == AVS_CS_BGR32 ; }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_is_yuv(const AVS_VideoInfo * p)
 | 
			
		||||
        { return !!(p->pixel_type&AVS_CS_YUV ); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_is_yuy2(const AVS_VideoInfo * p)
 | 
			
		||||
        { return (p->pixel_type & AVS_CS_YUY2) == AVS_CS_YUY2; }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_is_yv12(const AVS_VideoInfo * p)
 | 
			
		||||
        { return ((p->pixel_type & AVS_CS_YV12) == AVS_CS_YV12)||((p->pixel_type & AVS_CS_I420) == AVS_CS_I420); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_is_color_space(const AVS_VideoInfo * p, int c_space)
 | 
			
		||||
        { return ((p->pixel_type & c_space) == c_space); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_is_property(const AVS_VideoInfo * p, int property)
 | 
			
		||||
        { return ((p->pixel_type & property)==property ); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_is_planar(const AVS_VideoInfo * p)
 | 
			
		||||
        { return !!(p->pixel_type & AVS_CS_PLANAR); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_is_field_based(const AVS_VideoInfo * p)
 | 
			
		||||
        { return !!(p->image_type & AVS_IT_FIELDBASED); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_is_parity_known(const AVS_VideoInfo * p)
 | 
			
		||||
        { return ((p->image_type & AVS_IT_FIELDBASED)&&(p->image_type & (AVS_IT_BFF | AVS_IT_TFF))); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_is_bff(const AVS_VideoInfo * p)
 | 
			
		||||
        { return !!(p->image_type & AVS_IT_BFF); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_is_tff(const AVS_VideoInfo * p)
 | 
			
		||||
        { return !!(p->image_type & AVS_IT_TFF); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_bits_per_pixel(const AVS_VideoInfo * p)
 | 
			
		||||
{
 | 
			
		||||
  switch (p->pixel_type) {
 | 
			
		||||
      case AVS_CS_BGR24: return 24;
 | 
			
		||||
      case AVS_CS_BGR32: return 32;
 | 
			
		||||
      case AVS_CS_YUY2:  return 16;
 | 
			
		||||
      case AVS_CS_YV12:
 | 
			
		||||
      case AVS_CS_I420:  return 12;
 | 
			
		||||
      default:           return 0;
 | 
			
		||||
    }
 | 
			
		||||
}
 | 
			
		||||
AVSC_INLINE int avs_bytes_from_pixels(const AVS_VideoInfo * p, int pixels)
 | 
			
		||||
        { return pixels * (avs_bits_per_pixel(p)>>3); }   // Will work on planar images, but will return only luma planes
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_row_size(const AVS_VideoInfo * p)
 | 
			
		||||
        { return avs_bytes_from_pixels(p,p->width); }  // Also only returns first plane on planar images
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_bmp_size(const AVS_VideoInfo * vi)
 | 
			
		||||
        { if (avs_is_planar(vi)) {int p = vi->height * ((avs_row_size(vi)+3) & ~3); p+=p>>1; return p;  } return vi->height * ((avs_row_size(vi)+3) & ~3); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_samples_per_second(const AVS_VideoInfo * p)
 | 
			
		||||
        { return p->audio_samples_per_second; }
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_bytes_per_channel_sample(const AVS_VideoInfo * p)
 | 
			
		||||
{
 | 
			
		||||
    switch (p->sample_type) {
 | 
			
		||||
      case AVS_SAMPLE_INT8:  return sizeof(signed char);
 | 
			
		||||
      case AVS_SAMPLE_INT16: return sizeof(signed short);
 | 
			
		||||
      case AVS_SAMPLE_INT24: return 3;
 | 
			
		||||
      case AVS_SAMPLE_INT32: return sizeof(signed int);
 | 
			
		||||
      case AVS_SAMPLE_FLOAT: return sizeof(float);
 | 
			
		||||
      default: return 0;
 | 
			
		||||
    }
 | 
			
		||||
}
 | 
			
		||||
AVSC_INLINE int avs_bytes_per_audio_sample(const AVS_VideoInfo * p)
 | 
			
		||||
        { return p->nchannels*avs_bytes_per_channel_sample(p);}
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE INT64 avs_audio_samples_from_frames(const AVS_VideoInfo * p, INT64 frames)
 | 
			
		||||
        { return ((INT64)(frames) * p->audio_samples_per_second * p->fps_denominator / p->fps_numerator); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_frames_from_audio_samples(const AVS_VideoInfo * p, INT64 samples)
 | 
			
		||||
        { return (int)(samples * (INT64)p->fps_numerator / (INT64)p->fps_denominator / (INT64)p->audio_samples_per_second); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE INT64 avs_audio_samples_from_bytes(const AVS_VideoInfo * p, INT64 bytes)
 | 
			
		||||
        { return bytes / avs_bytes_per_audio_sample(p); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE INT64 avs_bytes_from_audio_samples(const AVS_VideoInfo * p, INT64 samples)
 | 
			
		||||
        { return samples * avs_bytes_per_audio_sample(p); }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_audio_channels(const AVS_VideoInfo * p)
 | 
			
		||||
        { return p->nchannels; }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_sample_type(const AVS_VideoInfo * p)
 | 
			
		||||
        { return p->sample_type;}
 | 
			
		||||
 | 
			
		||||
// useful mutator
 | 
			
		||||
AVSC_INLINE void avs_set_property(AVS_VideoInfo * p, int property)
 | 
			
		||||
        { p->image_type|=property; }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE void avs_clear_property(AVS_VideoInfo * p, int property)
 | 
			
		||||
        { p->image_type&=~property; }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE void avs_set_field_based(AVS_VideoInfo * p, int isfieldbased)
 | 
			
		||||
        { if (isfieldbased) p->image_type|=AVS_IT_FIELDBASED; else p->image_type&=~AVS_IT_FIELDBASED; }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE void avs_set_fps(AVS_VideoInfo * p, unsigned numerator, unsigned denominator)
 | 
			
		||||
{
 | 
			
		||||
    unsigned x=numerator, y=denominator;
 | 
			
		||||
    while (y) {   // find gcd
 | 
			
		||||
      unsigned t = x%y; x = y; y = t;
 | 
			
		||||
    }
 | 
			
		||||
    p->fps_numerator = numerator/x;
 | 
			
		||||
    p->fps_denominator = denominator/x;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_is_same_colorspace(AVS_VideoInfo * x, AVS_VideoInfo * y)
 | 
			
		||||
{
 | 
			
		||||
        return (x->pixel_type == y->pixel_type)
 | 
			
		||||
                || (avs_is_yv12(x) && avs_is_yv12(y));
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/////////////////////////////////////////////////////////////////////
 | 
			
		||||
//
 | 
			
		||||
// AVS_VideoFrame
 | 
			
		||||
//
 | 
			
		||||
 | 
			
		||||
// VideoFrameBuffer holds information about a memory block which is used
 | 
			
		||||
// for video data.  For efficiency, instances of this class are not deleted
 | 
			
		||||
// when the refcount reaches zero; instead they're stored in a linked list
 | 
			
		||||
// to be reused.  The instances are deleted when the corresponding AVS
 | 
			
		||||
// file is closed.
 | 
			
		||||
 | 
			
		||||
// AVS_VideoFrameBuffer is layed out identicly to VideoFrameBuffer
 | 
			
		||||
// DO NOT USE THIS STRUCTURE DIRECTLY
 | 
			
		||||
typedef struct AVS_VideoFrameBuffer {
 | 
			
		||||
  unsigned char * data;
 | 
			
		||||
  int data_size;
 | 
			
		||||
  // sequence_number is incremented every time the buffer is changed, so
 | 
			
		||||
  // that stale views can tell they're no longer valid.
 | 
			
		||||
  long sequence_number;
 | 
			
		||||
 | 
			
		||||
  long refcount;
 | 
			
		||||
} AVS_VideoFrameBuffer;
 | 
			
		||||
 | 
			
		||||
// VideoFrame holds a "window" into a VideoFrameBuffer.
 | 
			
		||||
 | 
			
		||||
// AVS_VideoFrame is layed out identicly to IVideoFrame
 | 
			
		||||
// DO NOT USE THIS STRUCTURE DIRECTLY
 | 
			
		||||
typedef struct AVS_VideoFrame {
 | 
			
		||||
  int refcount;
 | 
			
		||||
  AVS_VideoFrameBuffer * vfb;
 | 
			
		||||
  int offset, pitch, row_size, height, offsetU, offsetV, pitchUV;  // U&V offsets are from top of picture.
 | 
			
		||||
} AVS_VideoFrame;
 | 
			
		||||
 | 
			
		||||
// Access functions for AVS_VideoFrame
 | 
			
		||||
AVSC_INLINE int avs_get_pitch(const AVS_VideoFrame * p) {
 | 
			
		||||
        return p->pitch;}
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_get_pitch_p(const AVS_VideoFrame * p, int plane) {
 | 
			
		||||
  switch (plane) {
 | 
			
		||||
  case AVS_PLANAR_U: case AVS_PLANAR_V: return p->pitchUV;}
 | 
			
		||||
  return p->pitch;}
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_get_row_size(const AVS_VideoFrame * p) {
 | 
			
		||||
        return p->row_size; }
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_get_row_size_p(const AVS_VideoFrame * p, int plane) {
 | 
			
		||||
        int r;
 | 
			
		||||
    switch (plane) {
 | 
			
		||||
    case AVS_PLANAR_U: case AVS_PLANAR_V:
 | 
			
		||||
                if (p->pitchUV) return p->row_size>>1;
 | 
			
		||||
                else            return 0;
 | 
			
		||||
    case AVS_PLANAR_U_ALIGNED: case AVS_PLANAR_V_ALIGNED:
 | 
			
		||||
                if (p->pitchUV) {
 | 
			
		||||
                        r = ((p->row_size+AVS_FRAME_ALIGN-1)&(~(AVS_FRAME_ALIGN-1)) )>>1; // Aligned rowsize
 | 
			
		||||
                        if (r < p->pitchUV)
 | 
			
		||||
                                return r;
 | 
			
		||||
                        return p->row_size>>1;
 | 
			
		||||
                } else return 0;
 | 
			
		||||
    case AVS_PLANAR_Y_ALIGNED:
 | 
			
		||||
                r = (p->row_size+AVS_FRAME_ALIGN-1)&(~(AVS_FRAME_ALIGN-1)); // Aligned rowsize
 | 
			
		||||
                if (r <= p->pitch)
 | 
			
		||||
                        return r;
 | 
			
		||||
                return p->row_size;
 | 
			
		||||
    }
 | 
			
		||||
    return p->row_size;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_get_height(const AVS_VideoFrame * p) {
 | 
			
		||||
        return p->height;}
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_get_height_p(const AVS_VideoFrame * p, int plane) {
 | 
			
		||||
        switch (plane) {
 | 
			
		||||
                case AVS_PLANAR_U: case AVS_PLANAR_V:
 | 
			
		||||
                        if (p->pitchUV) return p->height>>1;
 | 
			
		||||
                        return 0;
 | 
			
		||||
        }
 | 
			
		||||
        return p->height;}
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE const unsigned char* avs_get_read_ptr(const AVS_VideoFrame * p) {
 | 
			
		||||
        return p->vfb->data + p->offset;}
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE const unsigned char* avs_get_read_ptr_p(const AVS_VideoFrame * p, int plane)
 | 
			
		||||
{
 | 
			
		||||
        switch (plane) {
 | 
			
		||||
                case AVS_PLANAR_U: return p->vfb->data + p->offsetU;
 | 
			
		||||
                case AVS_PLANAR_V: return p->vfb->data + p->offsetV;
 | 
			
		||||
                default:           return p->vfb->data + p->offset;}
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_is_writable(const AVS_VideoFrame * p) {
 | 
			
		||||
        return (p->refcount == 1 && p->vfb->refcount == 1);}
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE unsigned char* avs_get_write_ptr(const AVS_VideoFrame * p)
 | 
			
		||||
{
 | 
			
		||||
        if (avs_is_writable(p)) {
 | 
			
		||||
                ++p->vfb->sequence_number;
 | 
			
		||||
                return p->vfb->data + p->offset;
 | 
			
		||||
        } else
 | 
			
		||||
                return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE unsigned char* avs_get_write_ptr_p(const AVS_VideoFrame * p, int plane)
 | 
			
		||||
{
 | 
			
		||||
        if (plane==AVS_PLANAR_Y && avs_is_writable(p)) {
 | 
			
		||||
                ++p->vfb->sequence_number;
 | 
			
		||||
                return p->vfb->data + p->offset;
 | 
			
		||||
        } else if (plane==AVS_PLANAR_Y) {
 | 
			
		||||
                return 0;
 | 
			
		||||
        } else {
 | 
			
		||||
                switch (plane) {
 | 
			
		||||
                        case AVS_PLANAR_U: return p->vfb->data + p->offsetU;
 | 
			
		||||
                        case AVS_PLANAR_V: return p->vfb->data + p->offsetV;
 | 
			
		||||
                        default:       return p->vfb->data + p->offset;
 | 
			
		||||
                }
 | 
			
		||||
        }
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
#if defined __cplusplus
 | 
			
		||||
extern "C"
 | 
			
		||||
{
 | 
			
		||||
#endif // __cplusplus
 | 
			
		||||
AVSC_API(void, avs_release_video_frame)(AVS_VideoFrame *);
 | 
			
		||||
// makes a shallow copy of a video frame
 | 
			
		||||
AVSC_API(AVS_VideoFrame *, avs_copy_video_frame)(AVS_VideoFrame *);
 | 
			
		||||
#if defined __cplusplus
 | 
			
		||||
}
 | 
			
		||||
#endif // __cplusplus
 | 
			
		||||
 | 
			
		||||
#ifndef AVSC_NO_DECLSPEC
 | 
			
		||||
AVSC_INLINE void avs_release_frame(AVS_VideoFrame * f)
 | 
			
		||||
  {avs_release_video_frame(f);}
 | 
			
		||||
AVSC_INLINE AVS_VideoFrame * avs_copy_frame(AVS_VideoFrame * f)
 | 
			
		||||
  {return avs_copy_video_frame(f);}
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
/////////////////////////////////////////////////////////////////////
 | 
			
		||||
//
 | 
			
		||||
// AVS_Value
 | 
			
		||||
//
 | 
			
		||||
 | 
			
		||||
// Treat AVS_Value as a fat pointer.  That is use avs_copy_value
 | 
			
		||||
// and avs_release_value appropiaty as you would if AVS_Value was
 | 
			
		||||
// a pointer.
 | 
			
		||||
 | 
			
		||||
// To maintain source code compatibility with future versions of the
 | 
			
		||||
// avisynth_c API don't use the AVS_Value directly.  Use the helper
 | 
			
		||||
// functions below.
 | 
			
		||||
 | 
			
		||||
// AVS_Value is layed out identicly to AVSValue
 | 
			
		||||
typedef struct AVS_Value AVS_Value;
 | 
			
		||||
struct AVS_Value {
 | 
			
		||||
  short type;  // 'a'rray, 'c'lip, 'b'ool, 'i'nt, 'f'loat, 's'tring, 'v'oid, or 'l'ong
 | 
			
		||||
               // for some function e'rror
 | 
			
		||||
  short array_size;
 | 
			
		||||
  union {
 | 
			
		||||
    void * clip; // do not use directly, use avs_take_clip
 | 
			
		||||
    char boolean;
 | 
			
		||||
    int integer;
 | 
			
		||||
    INT64 integer64; // match addition of __int64 to avxplugin.h
 | 
			
		||||
    float floating_pt;
 | 
			
		||||
    const char * string;
 | 
			
		||||
    const AVS_Value * array;
 | 
			
		||||
  } d;
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
// AVS_Value should be initilized with avs_void.
 | 
			
		||||
// Should also set to avs_void after the value is released
 | 
			
		||||
// with avs_copy_value.  Consider it the equalvent of setting
 | 
			
		||||
// a pointer to NULL
 | 
			
		||||
static const AVS_Value avs_void = {'v'};
 | 
			
		||||
 | 
			
		||||
AVSC_API(void, avs_copy_value)(AVS_Value * dest, AVS_Value src);
 | 
			
		||||
AVSC_API(void, avs_release_value)(AVS_Value);
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_defined(AVS_Value v) { return v.type != 'v'; }
 | 
			
		||||
AVSC_INLINE int avs_is_clip(AVS_Value v) { return v.type == 'c'; }
 | 
			
		||||
AVSC_INLINE int avs_is_bool(AVS_Value v) { return v.type == 'b'; }
 | 
			
		||||
AVSC_INLINE int avs_is_int(AVS_Value v) { return v.type == 'i'; }
 | 
			
		||||
AVSC_INLINE int avs_is_float(AVS_Value v) { return v.type == 'f' || v.type == 'i'; }
 | 
			
		||||
AVSC_INLINE int avs_is_string(AVS_Value v) { return v.type == 's'; }
 | 
			
		||||
AVSC_INLINE int avs_is_array(AVS_Value v) { return v.type == 'a'; }
 | 
			
		||||
AVSC_INLINE int avs_is_error(AVS_Value v) { return v.type == 'e'; }
 | 
			
		||||
 | 
			
		||||
#if defined __cplusplus
 | 
			
		||||
extern "C"
 | 
			
		||||
{
 | 
			
		||||
#endif // __cplusplus
 | 
			
		||||
AVSC_API(AVS_Clip *, avs_take_clip)(AVS_Value, AVS_ScriptEnvironment *);
 | 
			
		||||
AVSC_API(void, avs_set_to_clip)(AVS_Value *, AVS_Clip *);
 | 
			
		||||
#if defined __cplusplus
 | 
			
		||||
}
 | 
			
		||||
#endif // __cplusplus
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE int avs_as_bool(AVS_Value v)
 | 
			
		||||
        { return v.d.boolean; }
 | 
			
		||||
AVSC_INLINE int avs_as_int(AVS_Value v)
 | 
			
		||||
        { return v.d.integer; }
 | 
			
		||||
AVSC_INLINE const char * avs_as_string(AVS_Value v)
 | 
			
		||||
        { return avs_is_error(v) || avs_is_string(v) ? v.d.string : 0; }
 | 
			
		||||
AVSC_INLINE double avs_as_float(AVS_Value v)
 | 
			
		||||
        { return avs_is_int(v) ? v.d.integer : v.d.floating_pt; }
 | 
			
		||||
AVSC_INLINE const char * avs_as_error(AVS_Value v)
 | 
			
		||||
        { return avs_is_error(v) ? v.d.string : 0; }
 | 
			
		||||
AVSC_INLINE const AVS_Value * avs_as_array(AVS_Value v)
 | 
			
		||||
        { return v.d.array; }
 | 
			
		||||
AVSC_INLINE int avs_array_size(AVS_Value v)
 | 
			
		||||
        { return avs_is_array(v) ? v.array_size : 1; }
 | 
			
		||||
AVSC_INLINE AVS_Value avs_array_elt(AVS_Value v, int index)
 | 
			
		||||
        { return avs_is_array(v) ? v.d.array[index] : v; }
 | 
			
		||||
 | 
			
		||||
// only use these functions on am AVS_Value that does not already have
 | 
			
		||||
// an active value.  Remember, treat AVS_Value as a fat pointer.
 | 
			
		||||
AVSC_INLINE AVS_Value avs_new_value_bool(int v0)
 | 
			
		||||
        { AVS_Value v = {0}; v.type = 'b'; v.d.boolean = v0 == 0 ? 0 : 1; return v; }
 | 
			
		||||
AVSC_INLINE AVS_Value avs_new_value_int(int v0)
 | 
			
		||||
        { AVS_Value v = {0}; v.type = 'i'; v.d.integer = v0; return v; }
 | 
			
		||||
AVSC_INLINE AVS_Value avs_new_value_string(const char * v0)
 | 
			
		||||
        { AVS_Value v = {0}; v.type = 's'; v.d.string = v0; return v; }
 | 
			
		||||
AVSC_INLINE AVS_Value avs_new_value_float(float v0)
 | 
			
		||||
        { AVS_Value v = {0}; v.type = 'f'; v.d.floating_pt = v0; return v;}
 | 
			
		||||
AVSC_INLINE AVS_Value avs_new_value_error(const char * v0)
 | 
			
		||||
        { AVS_Value v = {0}; v.type = 'e'; v.d.string = v0; return v; }
 | 
			
		||||
#ifndef AVSC_NO_DECLSPEC
 | 
			
		||||
AVSC_INLINE AVS_Value avs_new_value_clip(AVS_Clip * v0)
 | 
			
		||||
        { AVS_Value v = {0}; avs_set_to_clip(&v, v0); return v; }
 | 
			
		||||
#endif
 | 
			
		||||
AVSC_INLINE AVS_Value avs_new_value_array(AVS_Value * v0, int size)
 | 
			
		||||
        { AVS_Value v = {0}; v.type = 'a'; v.d.array = v0; v.array_size = size; return v; }
 | 
			
		||||
 | 
			
		||||
/////////////////////////////////////////////////////////////////////
 | 
			
		||||
//
 | 
			
		||||
// AVS_Clip
 | 
			
		||||
//
 | 
			
		||||
#if defined __cplusplus
 | 
			
		||||
extern "C"
 | 
			
		||||
{
 | 
			
		||||
#endif // __cplusplus
 | 
			
		||||
AVSC_API(void, avs_release_clip)(AVS_Clip *);
 | 
			
		||||
AVSC_API(AVS_Clip *, avs_copy_clip)(AVS_Clip *);
 | 
			
		||||
 | 
			
		||||
AVSC_API(const char *, avs_clip_get_error)(AVS_Clip *); // return 0 if no error
 | 
			
		||||
 | 
			
		||||
AVSC_API(const AVS_VideoInfo *, avs_get_video_info)(AVS_Clip *);
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_get_version)(AVS_Clip *);
 | 
			
		||||
 | 
			
		||||
AVSC_API(AVS_VideoFrame *, avs_get_frame)(AVS_Clip *, int n);
 | 
			
		||||
// The returned video frame must be released with avs_release_video_frame
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_get_parity)(AVS_Clip *, int n);
 | 
			
		||||
// return field parity if field_based, else parity of first field in frame
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_get_audio)(AVS_Clip *, void * buf,
 | 
			
		||||
                                  INT64 start, INT64 count);
 | 
			
		||||
// start and count are in samples
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_set_cache_hints)(AVS_Clip *,
 | 
			
		||||
                                        int cachehints, size_t frame_range);
 | 
			
		||||
#if defined __cplusplus
 | 
			
		||||
}
 | 
			
		||||
#endif // __cplusplus
 | 
			
		||||
 | 
			
		||||
// This is the callback type used by avs_add_function
 | 
			
		||||
typedef AVS_Value (AVSC_CC * AVS_ApplyFunc)
 | 
			
		||||
                        (AVS_ScriptEnvironment *, AVS_Value args, void * user_data);
 | 
			
		||||
 | 
			
		||||
typedef struct AVS_FilterInfo AVS_FilterInfo;
 | 
			
		||||
struct AVS_FilterInfo
 | 
			
		||||
{
 | 
			
		||||
  // these members should not be modified outside of the AVS_ApplyFunc callback
 | 
			
		||||
  AVS_Clip * child;
 | 
			
		||||
  AVS_VideoInfo vi;
 | 
			
		||||
  AVS_ScriptEnvironment * env;
 | 
			
		||||
  AVS_VideoFrame * (AVSC_CC * get_frame)(AVS_FilterInfo *, int n);
 | 
			
		||||
  int (AVSC_CC * get_parity)(AVS_FilterInfo *, int n);
 | 
			
		||||
  int (AVSC_CC * get_audio)(AVS_FilterInfo *, void * buf,
 | 
			
		||||
                                  INT64 start, INT64 count);
 | 
			
		||||
  int (AVSC_CC * set_cache_hints)(AVS_FilterInfo *, int cachehints,
 | 
			
		||||
                                        int frame_range);
 | 
			
		||||
  void (AVSC_CC * free_filter)(AVS_FilterInfo *);
 | 
			
		||||
 | 
			
		||||
  // Should be set when ever there is an error to report.
 | 
			
		||||
  // It is cleared before any of the above methods are called
 | 
			
		||||
  const char * error;
 | 
			
		||||
  // this is to store whatever and may be modified at will
 | 
			
		||||
  void * user_data;
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
// Create a new filter
 | 
			
		||||
// fi is set to point to the AVS_FilterInfo so that you can
 | 
			
		||||
//   modify it once it is initilized.
 | 
			
		||||
// store_child should generally be set to true.  If it is not
 | 
			
		||||
//    set than ALL methods (the function pointers) must be defined
 | 
			
		||||
// If it is set than you do not need to worry about freeing the child
 | 
			
		||||
//    clip.
 | 
			
		||||
#if defined __cplusplus
 | 
			
		||||
extern "C"
 | 
			
		||||
{
 | 
			
		||||
#endif // __cplusplus
 | 
			
		||||
AVSC_API(AVS_Clip *, avs_new_c_filter)(AVS_ScriptEnvironment * e,
 | 
			
		||||
                                      AVS_FilterInfo * * fi,
 | 
			
		||||
                                      AVS_Value child, int store_child);
 | 
			
		||||
#if defined __cplusplus
 | 
			
		||||
}
 | 
			
		||||
#endif // __cplusplus
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
/////////////////////////////////////////////////////////////////////
 | 
			
		||||
//
 | 
			
		||||
// AVS_ScriptEnvironment
 | 
			
		||||
//
 | 
			
		||||
 | 
			
		||||
// For GetCPUFlags.  These are backwards-compatible with those in VirtualDub.
 | 
			
		||||
enum {
 | 
			
		||||
                                /* slowest CPU to support extension */
 | 
			
		||||
  AVS_CPU_FORCE        = 0x01,   // N/A
 | 
			
		||||
  AVS_CPU_FPU          = 0x02,   // 386/486DX
 | 
			
		||||
  AVS_CPU_MMX          = 0x04,   // P55C, K6, PII
 | 
			
		||||
  AVS_CPU_INTEGER_SSE  = 0x08,   // PIII, Athlon
 | 
			
		||||
  AVS_CPU_SSE          = 0x10,   // PIII, Athlon XP/MP
 | 
			
		||||
  AVS_CPU_SSE2         = 0x20,   // PIV, Hammer
 | 
			
		||||
  AVS_CPU_3DNOW        = 0x40,   // K6-2
 | 
			
		||||
  AVS_CPU_3DNOW_EXT    = 0x80,   // Athlon
 | 
			
		||||
  AVS_CPU_X86_64       = 0xA0,   // Hammer (note: equiv. to 3DNow + SSE2,
 | 
			
		||||
                                 // which only Hammer will have anyway)
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
#if defined __cplusplus
 | 
			
		||||
extern "C"
 | 
			
		||||
{
 | 
			
		||||
#endif // __cplusplus
 | 
			
		||||
AVSC_API(const char *, avs_get_error)(AVS_ScriptEnvironment *); // return 0 if no error
 | 
			
		||||
 | 
			
		||||
AVSC_API(long, avs_get_cpu_flags)(AVS_ScriptEnvironment *);
 | 
			
		||||
AVSC_API(int, avs_check_version)(AVS_ScriptEnvironment *, int version);
 | 
			
		||||
 | 
			
		||||
AVSC_API(char *, avs_save_string)(AVS_ScriptEnvironment *, const char* s, int length);
 | 
			
		||||
AVSC_API(char *, avs_sprintf)(AVS_ScriptEnvironment *, const char * fmt, ...);
 | 
			
		||||
 | 
			
		||||
AVSC_API(char *, avs_vsprintf)(AVS_ScriptEnvironment *, const char * fmt, va_list val);
 | 
			
		||||
 // note: val is really a va_list; I hope everyone typedefs va_list to a pointer
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_add_function)(AVS_ScriptEnvironment *,
 | 
			
		||||
                                     const char * name, const char * params,
 | 
			
		||||
                                     AVS_ApplyFunc apply, void * user_data);
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_function_exists)(AVS_ScriptEnvironment *, const char * name);
 | 
			
		||||
 | 
			
		||||
AVSC_API(AVS_Value, avs_invoke)(AVS_ScriptEnvironment *, const char * name,
 | 
			
		||||
                               AVS_Value args, const char** arg_names);
 | 
			
		||||
// The returned value must be be released with avs_release_value
 | 
			
		||||
 | 
			
		||||
AVSC_API(AVS_Value, avs_get_var)(AVS_ScriptEnvironment *, const char* name);
 | 
			
		||||
// The returned value must be be released with avs_release_value
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_set_var)(AVS_ScriptEnvironment *, const char* name, AVS_Value val);
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_set_global_var)(AVS_ScriptEnvironment *, const char* name, const AVS_Value val);
 | 
			
		||||
 | 
			
		||||
//void avs_push_context(AVS_ScriptEnvironment *, int level=0);
 | 
			
		||||
//void avs_pop_context(AVS_ScriptEnvironment *);
 | 
			
		||||
 | 
			
		||||
AVSC_API(AVS_VideoFrame *, avs_new_video_frame_a)(AVS_ScriptEnvironment *,
 | 
			
		||||
                                          const AVS_VideoInfo * vi, int align);
 | 
			
		||||
// align should be at least 16
 | 
			
		||||
#if defined __cplusplus
 | 
			
		||||
}
 | 
			
		||||
#endif // __cplusplus
 | 
			
		||||
 | 
			
		||||
#ifndef AVSC_NO_DECLSPEC
 | 
			
		||||
AVSC_INLINE
 | 
			
		||||
AVS_VideoFrame * avs_new_video_frame(AVS_ScriptEnvironment * env,
 | 
			
		||||
                                     const AVS_VideoInfo * vi)
 | 
			
		||||
  {return avs_new_video_frame_a(env,vi,AVS_FRAME_ALIGN);}
 | 
			
		||||
 | 
			
		||||
AVSC_INLINE
 | 
			
		||||
AVS_VideoFrame * avs_new_frame(AVS_ScriptEnvironment * env,
 | 
			
		||||
                               const AVS_VideoInfo * vi)
 | 
			
		||||
  {return avs_new_video_frame_a(env,vi,AVS_FRAME_ALIGN);}
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
#if defined __cplusplus
 | 
			
		||||
extern "C"
 | 
			
		||||
{
 | 
			
		||||
#endif // __cplusplus
 | 
			
		||||
AVSC_API(int, avs_make_writable)(AVS_ScriptEnvironment *, AVS_VideoFrame * * pvf);
 | 
			
		||||
 | 
			
		||||
AVSC_API(void, avs_bit_blt)(AVS_ScriptEnvironment *, unsigned char* dstp, int dst_pitch, const unsigned char* srcp, int src_pitch, int row_size, int height);
 | 
			
		||||
 | 
			
		||||
typedef void (AVSC_CC *AVS_ShutdownFunc)(void* user_data, AVS_ScriptEnvironment * env);
 | 
			
		||||
AVSC_API(void, avs_at_exit)(AVS_ScriptEnvironment *, AVS_ShutdownFunc function, void * user_data);
 | 
			
		||||
 | 
			
		||||
AVSC_API(AVS_VideoFrame *, avs_subframe)(AVS_ScriptEnvironment *, AVS_VideoFrame * src, int rel_offset, int new_pitch, int new_row_size, int new_height);
 | 
			
		||||
// The returned video frame must be be released
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_set_memory_max)(AVS_ScriptEnvironment *, int mem);
 | 
			
		||||
 | 
			
		||||
AVSC_API(int, avs_set_working_dir)(AVS_ScriptEnvironment *, const char * newdir);
 | 
			
		||||
 | 
			
		||||
// avisynth.dll exports this; it's a way to use it as a library, without
 | 
			
		||||
// writing an AVS script or without going through AVIFile.
 | 
			
		||||
AVSC_API(AVS_ScriptEnvironment *, avs_create_script_environment)(int version);
 | 
			
		||||
#if defined __cplusplus
 | 
			
		||||
}
 | 
			
		||||
#endif // __cplusplus
 | 
			
		||||
 | 
			
		||||
// this symbol is the entry point for the plugin and must
 | 
			
		||||
// be defined
 | 
			
		||||
AVSC_EXPORT
 | 
			
		||||
const char * AVSC_CC avisynth_c_plugin_init(AVS_ScriptEnvironment* env);
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
#if defined __cplusplus
 | 
			
		||||
extern "C"
 | 
			
		||||
{
 | 
			
		||||
#endif // __cplusplus
 | 
			
		||||
AVSC_API(void, avs_delete_script_environment)(AVS_ScriptEnvironment *);
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
AVSC_API(AVS_VideoFrame *, avs_subframe_planar)(AVS_ScriptEnvironment *, AVS_VideoFrame * src, int rel_offset, int new_pitch, int new_row_size, int new_height, int rel_offsetU, int rel_offsetV, int new_pitchUV);
 | 
			
		||||
// The returned video frame must be be released
 | 
			
		||||
#if defined __cplusplus
 | 
			
		||||
}
 | 
			
		||||
#endif // __cplusplus
 | 
			
		||||
 | 
			
		||||
#endif //__AVXSYNTH_C__
 | 
			
		||||
@@ -1,85 +0,0 @@
 | 
			
		||||
#ifndef __DATA_TYPE_CONVERSIONS_H__
 | 
			
		||||
#define __DATA_TYPE_CONVERSIONS_H__
 | 
			
		||||
 | 
			
		||||
#include <stdint.h>
 | 
			
		||||
#include <wchar.h>
 | 
			
		||||
 | 
			
		||||
#ifdef __cplusplus
 | 
			
		||||
namespace avxsynth {
 | 
			
		||||
#endif // __cplusplus
 | 
			
		||||
 | 
			
		||||
typedef int64_t __int64;
 | 
			
		||||
typedef int32_t __int32;
 | 
			
		||||
#ifdef __cplusplus
 | 
			
		||||
typedef bool BOOL;
 | 
			
		||||
#else
 | 
			
		||||
typedef uint32_t BOOL;
 | 
			
		||||
#endif // __cplusplus
 | 
			
		||||
typedef void* HMODULE;
 | 
			
		||||
typedef void* LPVOID;
 | 
			
		||||
typedef void* PVOID;
 | 
			
		||||
typedef PVOID HANDLE;
 | 
			
		||||
typedef HANDLE HWND;
 | 
			
		||||
typedef HANDLE HINSTANCE;
 | 
			
		||||
typedef void* HDC;
 | 
			
		||||
typedef void* HBITMAP;
 | 
			
		||||
typedef void* HICON;
 | 
			
		||||
typedef void* HFONT;
 | 
			
		||||
typedef void* HGDIOBJ;
 | 
			
		||||
typedef void* HBRUSH;
 | 
			
		||||
typedef void* HMMIO;
 | 
			
		||||
typedef void* HACMSTREAM;
 | 
			
		||||
typedef void* HACMDRIVER;
 | 
			
		||||
typedef void* HIC;
 | 
			
		||||
typedef void* HACMOBJ;
 | 
			
		||||
typedef HACMSTREAM* LPHACMSTREAM;
 | 
			
		||||
typedef void* HACMDRIVERID;
 | 
			
		||||
typedef void* LPHACMDRIVER;
 | 
			
		||||
typedef unsigned char BYTE;
 | 
			
		||||
typedef BYTE* LPBYTE;
 | 
			
		||||
typedef char TCHAR;
 | 
			
		||||
typedef TCHAR* LPTSTR;
 | 
			
		||||
typedef const TCHAR* LPCTSTR;
 | 
			
		||||
typedef char* LPSTR;
 | 
			
		||||
typedef LPSTR LPOLESTR;
 | 
			
		||||
typedef const char* LPCSTR;
 | 
			
		||||
typedef LPCSTR LPCOLESTR;
 | 
			
		||||
typedef wchar_t WCHAR;
 | 
			
		||||
typedef unsigned short WORD;
 | 
			
		||||
typedef unsigned int UINT;
 | 
			
		||||
typedef UINT MMRESULT;
 | 
			
		||||
typedef uint32_t DWORD;
 | 
			
		||||
typedef DWORD COLORREF;
 | 
			
		||||
typedef DWORD FOURCC;
 | 
			
		||||
typedef DWORD HRESULT;
 | 
			
		||||
typedef DWORD* LPDWORD;
 | 
			
		||||
typedef DWORD* DWORD_PTR;
 | 
			
		||||
typedef int32_t LONG;
 | 
			
		||||
typedef int32_t* LONG_PTR;
 | 
			
		||||
typedef LONG_PTR LRESULT;
 | 
			
		||||
typedef uint32_t ULONG;
 | 
			
		||||
typedef uint32_t* ULONG_PTR;
 | 
			
		||||
//typedef __int64_t intptr_t;
 | 
			
		||||
typedef uint64_t _fsize_t;
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
//
 | 
			
		||||
// Structures
 | 
			
		||||
//
 | 
			
		||||
 | 
			
		||||
typedef struct _GUID {
 | 
			
		||||
  DWORD Data1;
 | 
			
		||||
  WORD  Data2;
 | 
			
		||||
  WORD  Data3;
 | 
			
		||||
  BYTE  Data4[8];
 | 
			
		||||
} GUID;
 | 
			
		||||
 | 
			
		||||
typedef GUID REFIID;
 | 
			
		||||
typedef GUID CLSID;
 | 
			
		||||
typedef CLSID* LPCLSID;
 | 
			
		||||
typedef GUID IID;
 | 
			
		||||
 | 
			
		||||
#ifdef __cplusplus
 | 
			
		||||
}; // namespace avxsynth
 | 
			
		||||
#endif // __cplusplus
 | 
			
		||||
#endif //  __DATA_TYPE_CONVERSIONS_H__
 | 
			
		||||
@@ -1,77 +0,0 @@
 | 
			
		||||
#ifndef __WINDOWS2LINUX_H__
 | 
			
		||||
#define __WINDOWS2LINUX_H__
 | 
			
		||||
 | 
			
		||||
/*
 | 
			
		||||
 * LINUX SPECIFIC DEFINITIONS
 | 
			
		||||
*/
 | 
			
		||||
//
 | 
			
		||||
// Data types conversions
 | 
			
		||||
//
 | 
			
		||||
#include <stdlib.h>
 | 
			
		||||
#include <string.h>
 | 
			
		||||
#include "basicDataTypeConversions.h"
 | 
			
		||||
 | 
			
		||||
#ifdef __cplusplus
 | 
			
		||||
namespace avxsynth {
 | 
			
		||||
#endif // __cplusplus
 | 
			
		||||
//
 | 
			
		||||
// purposefully define the following MSFT definitions
 | 
			
		||||
// to mean nothing (as they do not mean anything on Linux)
 | 
			
		||||
//
 | 
			
		||||
#define __stdcall
 | 
			
		||||
#define __cdecl
 | 
			
		||||
#define noreturn
 | 
			
		||||
#define __declspec(x)
 | 
			
		||||
#define STDAPI       extern "C" HRESULT
 | 
			
		||||
#define STDMETHODIMP HRESULT __stdcall
 | 
			
		||||
#define STDMETHODIMP_(x) x __stdcall
 | 
			
		||||
 | 
			
		||||
#define STDMETHOD(x)    virtual HRESULT x
 | 
			
		||||
#define STDMETHOD_(a, x) virtual a x
 | 
			
		||||
 | 
			
		||||
#ifndef TRUE
 | 
			
		||||
#define TRUE  true
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
#ifndef FALSE
 | 
			
		||||
#define FALSE false
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
#define S_OK                (0x00000000)
 | 
			
		||||
#define S_FALSE             (0x00000001)
 | 
			
		||||
#define E_NOINTERFACE       (0X80004002)
 | 
			
		||||
#define E_POINTER           (0x80004003)
 | 
			
		||||
#define E_FAIL              (0x80004005)
 | 
			
		||||
#define E_OUTOFMEMORY       (0x8007000E)
 | 
			
		||||
 | 
			
		||||
#define INVALID_HANDLE_VALUE    ((HANDLE)((LONG_PTR)-1))
 | 
			
		||||
#define FAILED(hr)              ((hr) & 0x80000000)
 | 
			
		||||
#define SUCCEEDED(hr)           (!FAILED(hr))
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
//
 | 
			
		||||
// Functions
 | 
			
		||||
//
 | 
			
		||||
#define MAKEDWORD(a,b,c,d) (((a) << 24) | ((b) << 16) | ((c) << 8) | (d))
 | 
			
		||||
#define MAKEWORD(a,b) (((a) << 8) | (b))
 | 
			
		||||
 | 
			
		||||
#define lstrlen                             strlen
 | 
			
		||||
#define lstrcpy                             strcpy
 | 
			
		||||
#define lstrcmpi                            strcasecmp
 | 
			
		||||
#define _stricmp                            strcasecmp
 | 
			
		||||
#define InterlockedIncrement(x)             __sync_fetch_and_add((x), 1)
 | 
			
		||||
#define InterlockedDecrement(x)             __sync_fetch_and_sub((x), 1)
 | 
			
		||||
// Windows uses (new, old) ordering but GCC has (old, new)
 | 
			
		||||
#define InterlockedCompareExchange(x,y,z)   __sync_val_compare_and_swap(x,z,y)
 | 
			
		||||
 | 
			
		||||
#define UInt32x32To64(a, b)                 ( (uint64_t) ( ((uint64_t)((uint32_t)(a))) * ((uint32_t)(b))  ) )
 | 
			
		||||
#define Int64ShrlMod32(a, b)                ( (uint64_t) ( (uint64_t)(a) >> (b) ) )
 | 
			
		||||
#define Int32x32To64(a, b)                  ((__int64)(((__int64)((long)(a))) * ((long)(b))))
 | 
			
		||||
 | 
			
		||||
#define MulDiv(nNumber, nNumerator, nDenominator)   (int32_t) (((int64_t) (nNumber) * (int64_t) (nNumerator) + (int64_t) ((nDenominator)/2)) / (int64_t) (nDenominator))
 | 
			
		||||
 | 
			
		||||
#ifdef __cplusplus
 | 
			
		||||
}; // namespace avxsynth
 | 
			
		||||
#endif // __cplusplus
 | 
			
		||||
 | 
			
		||||
#endif //  __WINDOWS2LINUX_H__
 | 
			
		||||
@@ -1,35 +0,0 @@
 | 
			
		||||
/*
 | 
			
		||||
 * Work around broken floating point limits on some systems.
 | 
			
		||||
 *
 | 
			
		||||
 * This file is part of FFmpeg.
 | 
			
		||||
 *
 | 
			
		||||
 * FFmpeg is free software; you can redistribute it and/or
 | 
			
		||||
 * modify it under the terms of the GNU Lesser General Public
 | 
			
		||||
 * License as published by the Free Software Foundation; either
 | 
			
		||||
 * version 2.1 of the License, or (at your option) any later version.
 | 
			
		||||
 *
 | 
			
		||||
 * FFmpeg is distributed in the hope that it will be useful,
 | 
			
		||||
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 | 
			
		||||
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 | 
			
		||||
 * Lesser General Public License for more details.
 | 
			
		||||
 *
 | 
			
		||||
 * You should have received a copy of the GNU Lesser General Public
 | 
			
		||||
 * License along with FFmpeg; if not, write to the Free Software
 | 
			
		||||
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
#include_next <float.h>
 | 
			
		||||
 | 
			
		||||
#ifdef FLT_MAX
 | 
			
		||||
#undef  FLT_MAX
 | 
			
		||||
#define FLT_MAX 3.40282346638528859812e+38F
 | 
			
		||||
 | 
			
		||||
#undef  FLT_MIN
 | 
			
		||||
#define FLT_MIN 1.17549435082228750797e-38F
 | 
			
		||||
 | 
			
		||||
#undef  DBL_MAX
 | 
			
		||||
#define DBL_MAX ((double)1.79769313486231570815e+308L)
 | 
			
		||||
 | 
			
		||||
#undef  DBL_MIN
 | 
			
		||||
#define DBL_MIN ((double)2.22507385850720138309e-308L)
 | 
			
		||||
#endif
 | 
			
		||||
@@ -1,22 +0,0 @@
 | 
			
		||||
/*
 | 
			
		||||
 * Work around broken floating point limits on some systems.
 | 
			
		||||
 *
 | 
			
		||||
 * This file is part of FFmpeg.
 | 
			
		||||
 *
 | 
			
		||||
 * FFmpeg is free software; you can redistribute it and/or
 | 
			
		||||
 * modify it under the terms of the GNU Lesser General Public
 | 
			
		||||
 * License as published by the Free Software Foundation; either
 | 
			
		||||
 * version 2.1 of the License, or (at your option) any later version.
 | 
			
		||||
 *
 | 
			
		||||
 * FFmpeg is distributed in the hope that it will be useful,
 | 
			
		||||
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 | 
			
		||||
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 | 
			
		||||
 * Lesser General Public License for more details.
 | 
			
		||||
 *
 | 
			
		||||
 * You should have received a copy of the GNU Lesser General Public
 | 
			
		||||
 * License along with FFmpeg; if not, write to the Free Software
 | 
			
		||||
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
#include_next <limits.h>
 | 
			
		||||
#include <float.h>
 | 
			
		||||
@@ -38,6 +38,8 @@ static int optind = 1;
 | 
			
		||||
static int optopt;
 | 
			
		||||
static char *optarg;
 | 
			
		||||
 | 
			
		||||
#undef fprintf
 | 
			
		||||
 | 
			
		||||
static int getopt(int argc, char *argv[], char *opts)
 | 
			
		||||
{
 | 
			
		||||
    static int sp = 1;
 | 
			
		||||
@@ -54,7 +56,7 @@ static int getopt(int argc, char *argv[], char *opts)
 | 
			
		||||
        }
 | 
			
		||||
    }
 | 
			
		||||
    optopt = c = argv[optind][sp];
 | 
			
		||||
    if (c == ':' || !(cp = strchr(opts, c))) {
 | 
			
		||||
    if (c == ':' || (cp = strchr(opts, c)) == NULL) {
 | 
			
		||||
        fprintf(stderr, ": illegal option -- %c\n", c);
 | 
			
		||||
        if (argv[optind][++sp] == '\0') {
 | 
			
		||||
            optind++;
 | 
			
		||||
 
 | 
			
		||||
@@ -1,24 +1,3 @@
 | 
			
		||||
/*
 | 
			
		||||
 * This file is part of FFmpeg.
 | 
			
		||||
 *
 | 
			
		||||
 * FFmpeg is free software; you can redistribute it and/or
 | 
			
		||||
 * modify it under the terms of the GNU Lesser General Public
 | 
			
		||||
 * License as published by the Free Software Foundation; either
 | 
			
		||||
 * version 2.1 of the License, or (at your option) any later version.
 | 
			
		||||
 *
 | 
			
		||||
 * FFmpeg is distributed in the hope that it will be useful,
 | 
			
		||||
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 | 
			
		||||
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 | 
			
		||||
 * Lesser General Public License for more details.
 | 
			
		||||
 *
 | 
			
		||||
 * You should have received a copy of the GNU Lesser General Public
 | 
			
		||||
 * License along with FFmpeg; if not, write to the Free Software
 | 
			
		||||
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
#ifndef FFMPEG_COMPAT_TMS470_MATH_H
 | 
			
		||||
#define FFMPEG_COMPAT_TMS470_MATH_H
 | 
			
		||||
 | 
			
		||||
#include_next <math.h>
 | 
			
		||||
 | 
			
		||||
#undef INFINITY
 | 
			
		||||
@@ -26,5 +5,3 @@
 | 
			
		||||
 | 
			
		||||
#define INFINITY (*(const float*)((const unsigned []){ 0x7f800000 }))
 | 
			
		||||
#define NAN      (*(const float*)((const unsigned []){ 0x7fc00000 }))
 | 
			
		||||
 | 
			
		||||
#endif /* FFMPEG_COMPAT_TMS470_MATH_H */
 | 
			
		||||
 
 | 
			
		||||
@@ -24,6 +24,3 @@
 | 
			
		||||
#if !defined(va_copy) && defined(_MSC_VER)
 | 
			
		||||
#define va_copy(dst, src) ((dst) = (src))
 | 
			
		||||
#endif
 | 
			
		||||
#if !defined(va_copy) && defined(__GNUC__) && __GNUC__ < 3
 | 
			
		||||
#define va_copy(dst, src) __va_copy(dst, src)
 | 
			
		||||
#endif
 | 
			
		||||
 
 | 
			
		||||
@@ -1,132 +0,0 @@
 | 
			
		||||
#!/bin/sh
 | 
			
		||||
 | 
			
		||||
# Copyright (c) 2013, Derek Buitenhuis
 | 
			
		||||
#
 | 
			
		||||
# Permission to use, copy, modify, and/or distribute this software for any
 | 
			
		||||
# purpose with or without fee is hereby granted, provided that the above
 | 
			
		||||
# copyright notice and this permission notice appear in all copies.
 | 
			
		||||
#
 | 
			
		||||
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 | 
			
		||||
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 | 
			
		||||
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 | 
			
		||||
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 | 
			
		||||
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 | 
			
		||||
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 | 
			
		||||
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 | 
			
		||||
 | 
			
		||||
# mktemp isn't POSIX, so supply an implementation
 | 
			
		||||
mktemp() {
 | 
			
		||||
    echo "${2%%XXX*}.${HOSTNAME}.${UID}.$$"
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
if [ $# -lt 2 ]; then
 | 
			
		||||
    echo "Usage: makedef <version_script> <objects>" >&2
 | 
			
		||||
    exit 0
 | 
			
		||||
fi
 | 
			
		||||
 | 
			
		||||
vscript=$1
 | 
			
		||||
shift
 | 
			
		||||
 | 
			
		||||
if [ ! -f "$vscript" ]; then
 | 
			
		||||
    echo "Version script does not exist" >&2
 | 
			
		||||
    exit 1
 | 
			
		||||
fi
 | 
			
		||||
 | 
			
		||||
for object in "$@"; do
 | 
			
		||||
    if [ ! -f "$object" ]; then
 | 
			
		||||
        echo "Object does not exist: ${object}" >&2
 | 
			
		||||
        exit 1
 | 
			
		||||
    fi
 | 
			
		||||
done
 | 
			
		||||
 | 
			
		||||
# Create a lib temporarily to dump symbols from.
 | 
			
		||||
# It's just much easier to do it this way
 | 
			
		||||
libname=$(mktemp -u "library").lib
 | 
			
		||||
 | 
			
		||||
trap 'rm -f -- $libname' EXIT
 | 
			
		||||
 | 
			
		||||
lib -out:${libname} $@ >/dev/null
 | 
			
		||||
if [ $? != 0 ]; then
 | 
			
		||||
    echo "Could not create temporary library." >&2
 | 
			
		||||
    exit 1
 | 
			
		||||
fi
 | 
			
		||||
 | 
			
		||||
IFS='
 | 
			
		||||
'
 | 
			
		||||
 | 
			
		||||
# Determine if we're building for x86 or x86_64 and
 | 
			
		||||
# set the symbol prefix accordingly.
 | 
			
		||||
prefix=""
 | 
			
		||||
arch=$(dumpbin -headers ${libname} |
 | 
			
		||||
       tr '\t' ' ' |
 | 
			
		||||
       grep '^ \+.\+machine \+(.\+)' |
 | 
			
		||||
       head -1 |
 | 
			
		||||
       sed -e 's/^ \{1,\}.\{1,\} \{1,\}machine \{1,\}(\(...\)).*/\1/')
 | 
			
		||||
 | 
			
		||||
if [ "${arch}" = "x86" ]; then
 | 
			
		||||
    prefix="_"
 | 
			
		||||
else
 | 
			
		||||
    if [ "${arch}" != "ARM" ] && [ "${arch}" != "x64" ]; then
 | 
			
		||||
        echo "Unknown machine type." >&2
 | 
			
		||||
        exit 1
 | 
			
		||||
    fi
 | 
			
		||||
fi
 | 
			
		||||
 | 
			
		||||
started=0
 | 
			
		||||
regex="none"
 | 
			
		||||
 | 
			
		||||
for line in $(cat ${vscript} | tr '\t' ' '); do
 | 
			
		||||
    # We only care about global symbols
 | 
			
		||||
    echo "${line}" | grep -q '^ \+global:'
 | 
			
		||||
    if [ $? = 0 ]; then
 | 
			
		||||
        started=1
 | 
			
		||||
        line=$(echo "${line}" | sed -e 's/^ \{1,\}global: *//')
 | 
			
		||||
    else
 | 
			
		||||
        echo "${line}" | grep -q '^ \+local:'
 | 
			
		||||
        if [ $? = 0 ]; then
 | 
			
		||||
            started=0
 | 
			
		||||
        fi
 | 
			
		||||
    fi
 | 
			
		||||
 | 
			
		||||
    if [ ${started} = 0 ]; then
 | 
			
		||||
        continue
 | 
			
		||||
    fi
 | 
			
		||||
 | 
			
		||||
    # Handle multiple symbols on one line
 | 
			
		||||
    IFS=';'
 | 
			
		||||
 | 
			
		||||
    # Work around stupid expansion to filenames
 | 
			
		||||
    line=$(echo "${line}" | sed -e 's/\*/.\\+/g')
 | 
			
		||||
    for exp in ${line}; do
 | 
			
		||||
        # Remove leading and trailing whitespace
 | 
			
		||||
        exp=$(echo "${exp}" | sed -e 's/^ *//' -e 's/ *$//')
 | 
			
		||||
 | 
			
		||||
        if [ "${regex}" = "none" ]; then
 | 
			
		||||
            regex="${exp}"
 | 
			
		||||
        else
 | 
			
		||||
            regex="${regex};${exp}"
 | 
			
		||||
        fi
 | 
			
		||||
    done
 | 
			
		||||
 | 
			
		||||
    IFS='
 | 
			
		||||
'
 | 
			
		||||
done
 | 
			
		||||
 | 
			
		||||
dump=$(dumpbin -linkermember:1 ${libname})
 | 
			
		||||
 | 
			
		||||
rm ${libname}
 | 
			
		||||
 | 
			
		||||
IFS=';'
 | 
			
		||||
list=""
 | 
			
		||||
for exp in ${regex}; do
 | 
			
		||||
    list="${list}"'
 | 
			
		||||
'$(echo "${dump}" |
 | 
			
		||||
          sed -e '/public symbols/,$!d' -e '/^ \{1,\}Summary/,$d' -e "s/ \{1,\}${prefix}/ /" -e 's/ \{1,\}/ /g' |
 | 
			
		||||
          tail -n +2 |
 | 
			
		||||
          cut -d' ' -f3 |
 | 
			
		||||
          grep "^${exp}" |
 | 
			
		||||
          sed -e 's/^/    /')
 | 
			
		||||
done
 | 
			
		||||
 | 
			
		||||
echo "EXPORTS"
 | 
			
		||||
echo "${list}" | sort | uniq | tail -n +2
 | 
			
		||||
@@ -1,9 +0,0 @@
 | 
			
		||||
#!/bin/sh
 | 
			
		||||
 | 
			
		||||
LINK_EXE_PATH=$(dirname "$(command -v cl)")/link
 | 
			
		||||
if [ -x "$LINK_EXE_PATH" ]; then
 | 
			
		||||
    "$LINK_EXE_PATH" $@
 | 
			
		||||
else
 | 
			
		||||
    link $@
 | 
			
		||||
fi
 | 
			
		||||
exit $?
 | 
			
		||||
							
								
								
									
										915
									
								
								doc/APIchanges
									
									
									
									
									
								
							
							
						
						
									
										915
									
								
								doc/APIchanges
									
									
									
									
									
								
							
										
											
												File diff suppressed because it is too large
												Load Diff
											
										
									
								
							
							
								
								
									
										22
									
								
								doc/Doxyfile
									
									
									
									
									
								
							
							
						
						
									
										22
									
								
								doc/Doxyfile
									
									
									
									
									
								
							@@ -31,9 +31,9 @@ PROJECT_NAME           = FFmpeg
 | 
			
		||||
# This could be handy for archiving the generated documentation or
 | 
			
		||||
# if some version control system is used.
 | 
			
		||||
 | 
			
		||||
PROJECT_NUMBER         = 2.8.7
 | 
			
		||||
PROJECT_NUMBER         = 1.2.2
 | 
			
		||||
 | 
			
		||||
# With the PROJECT_LOGO tag one can specify a logo or icon that is included
 | 
			
		||||
# With the PROJECT_LOGO tag one can specify an logo or icon that is included
 | 
			
		||||
# in the documentation. The maximum height of the logo should not exceed 55
 | 
			
		||||
# pixels and the maximum width should not exceed 200 pixels. Doxygen will
 | 
			
		||||
# copy the logo to the output directory.
 | 
			
		||||
@@ -277,7 +277,7 @@ SUBGROUPING            = YES
 | 
			
		||||
# be useful for C code in case the coding convention dictates that all compound
 | 
			
		||||
# types are typedef'ed and only the typedef is referenced, never the tag name.
 | 
			
		||||
 | 
			
		||||
TYPEDEF_HIDES_STRUCT   = YES
 | 
			
		||||
TYPEDEF_HIDES_STRUCT   = NO
 | 
			
		||||
 | 
			
		||||
# The SYMBOL_CACHE_SIZE determines the size of the internal cache use to
 | 
			
		||||
# determine which symbols to keep in memory and which to flush to disk.
 | 
			
		||||
@@ -409,7 +409,7 @@ INLINE_INFO            = YES
 | 
			
		||||
# alphabetically by member name. If set to NO the members will appear in
 | 
			
		||||
# declaration order.
 | 
			
		||||
 | 
			
		||||
SORT_MEMBER_DOCS       = NO
 | 
			
		||||
SORT_MEMBER_DOCS       = YES
 | 
			
		||||
 | 
			
		||||
# If the SORT_BRIEF_DOCS tag is set to YES then doxygen will sort the
 | 
			
		||||
# brief documentation of file, namespace and class members alphabetically
 | 
			
		||||
@@ -709,7 +709,7 @@ INLINE_SOURCES         = NO
 | 
			
		||||
# doxygen to hide any special comment blocks from generated source code
 | 
			
		||||
# fragments. Normal C and C++ comments will always remain visible.
 | 
			
		||||
 | 
			
		||||
STRIP_CODE_COMMENTS    = NO
 | 
			
		||||
STRIP_CODE_COMMENTS    = YES
 | 
			
		||||
 | 
			
		||||
# If the REFERENCED_BY_RELATION tag is set to YES
 | 
			
		||||
# then for each documented function all documented
 | 
			
		||||
@@ -759,7 +759,7 @@ ALPHABETICAL_INDEX     = YES
 | 
			
		||||
# the COLS_IN_ALPHA_INDEX tag can be used to specify the number of columns
 | 
			
		||||
# in which this list will be split (can be a number in the range [1..20])
 | 
			
		||||
 | 
			
		||||
COLS_IN_ALPHA_INDEX    = 5
 | 
			
		||||
COLS_IN_ALPHA_INDEX    = 2
 | 
			
		||||
 | 
			
		||||
# In case all classes in a project start with a common prefix, all
 | 
			
		||||
# classes will be put under the same header in the alphabetical index.
 | 
			
		||||
@@ -793,13 +793,13 @@ HTML_FILE_EXTENSION    = .html
 | 
			
		||||
# each generated HTML page. If it is left blank doxygen will generate a
 | 
			
		||||
# standard header.
 | 
			
		||||
 | 
			
		||||
HTML_HEADER            =
 | 
			
		||||
#HTML_HEADER            = doc/doxy/header.html
 | 
			
		||||
 | 
			
		||||
# The HTML_FOOTER tag can be used to specify a personal HTML footer for
 | 
			
		||||
# each generated HTML page. If it is left blank doxygen will generate a
 | 
			
		||||
# standard footer.
 | 
			
		||||
 | 
			
		||||
HTML_FOOTER            =
 | 
			
		||||
#HTML_FOOTER            = doc/doxy/footer.html
 | 
			
		||||
 | 
			
		||||
# The HTML_STYLESHEET tag can be used to specify a user-defined cascading
 | 
			
		||||
# style sheet that is used by each HTML page. It can be used to
 | 
			
		||||
@@ -808,7 +808,7 @@ HTML_FOOTER            =
 | 
			
		||||
# the style sheet file to the HTML output directory, so don't put your own
 | 
			
		||||
# stylesheet in the HTML output directory as well, or it will be erased!
 | 
			
		||||
 | 
			
		||||
HTML_STYLESHEET        =
 | 
			
		||||
#HTML_STYLESHEET        = doc/doxy/doxy_stylesheet.css
 | 
			
		||||
 | 
			
		||||
# The HTML_COLORSTYLE_HUE tag controls the color of the HTML output.
 | 
			
		||||
# Doxygen will adjust the colors in the stylesheet and background images
 | 
			
		||||
@@ -1056,7 +1056,7 @@ FORMULA_TRANSPARENT    = YES
 | 
			
		||||
# typically be disabled. For large projects the javascript based search engine
 | 
			
		||||
# can be slow, then enabling SERVER_BASED_SEARCH may provide a better solution.
 | 
			
		||||
 | 
			
		||||
SEARCHENGINE           = YES
 | 
			
		||||
SEARCHENGINE           = NO
 | 
			
		||||
 | 
			
		||||
# When the SERVER_BASED_SEARCH tag is enabled the search engine will be
 | 
			
		||||
# implemented using a PHP enabled web server instead of at the web client
 | 
			
		||||
@@ -1359,8 +1359,6 @@ PREDEFINED             = "__attribute__(x)=" \
 | 
			
		||||
                         "DECLARE_ALIGNED(a,t,n)=t n" \
 | 
			
		||||
                         "offsetof(x,y)=0x42" \
 | 
			
		||||
                         av_alloc_size \
 | 
			
		||||
                         AV_GCC_VERSION_AT_LEAST(x,y)=1 \
 | 
			
		||||
                         __GNUC__=1 \
 | 
			
		||||
 | 
			
		||||
# If the MACRO_EXPANSION and EXPAND_ONLY_PREDEF tags are set to YES then
 | 
			
		||||
# this tag can be used to specify a list of macro names that should be expanded.
 | 
			
		||||
 
 | 
			
		||||
							
								
								
									
										113
									
								
								doc/Makefile
									
									
									
									
									
								
							
							
						
						
									
										113
									
								
								doc/Makefile
									
									
									
									
									
								
							@@ -6,6 +6,7 @@ LIBRARIES-$(CONFIG_AVFORMAT)   += libavformat
 | 
			
		||||
LIBRARIES-$(CONFIG_AVDEVICE)   += libavdevice
 | 
			
		||||
LIBRARIES-$(CONFIG_AVFILTER)   += libavfilter
 | 
			
		||||
 | 
			
		||||
COMPONENTS-yes = $(PROGS-yes)
 | 
			
		||||
COMPONENTS-$(CONFIG_AVUTIL)     += ffmpeg-utils
 | 
			
		||||
COMPONENTS-$(CONFIG_SWSCALE)    += ffmpeg-scaler
 | 
			
		||||
COMPONENTS-$(CONFIG_SWRESAMPLE) += ffmpeg-resampler
 | 
			
		||||
@@ -14,11 +15,9 @@ COMPONENTS-$(CONFIG_AVFORMAT)   += ffmpeg-formats ffmpeg-protocols
 | 
			
		||||
COMPONENTS-$(CONFIG_AVDEVICE)   += ffmpeg-devices
 | 
			
		||||
COMPONENTS-$(CONFIG_AVFILTER)   += ffmpeg-filters
 | 
			
		||||
 | 
			
		||||
MANPAGES1   = $(AVPROGS-yes:%=doc/%.1)    $(AVPROGS-yes:%=doc/%-all.1)    $(COMPONENTS-yes:%=doc/%.1)
 | 
			
		||||
MANPAGES3   = $(LIBRARIES-yes:%=doc/%.3)
 | 
			
		||||
MANPAGES    = $(MANPAGES1) $(MANPAGES3)
 | 
			
		||||
PODPAGES    = $(AVPROGS-yes:%=doc/%.pod)  $(AVPROGS-yes:%=doc/%-all.pod)  $(COMPONENTS-yes:%=doc/%.pod)  $(LIBRARIES-yes:%=doc/%.pod)
 | 
			
		||||
HTMLPAGES   = $(AVPROGS-yes:%=doc/%.html) $(AVPROGS-yes:%=doc/%-all.html) $(COMPONENTS-yes:%=doc/%.html) $(LIBRARIES-yes:%=doc/%.html) \
 | 
			
		||||
MANPAGES    = $(COMPONENTS-yes:%=doc/%.1)    $(LIBRARIES-yes:%=doc/%.3)
 | 
			
		||||
PODPAGES    = $(COMPONENTS-yes:%=doc/%.pod)  $(LIBRARIES-yes:%=doc/%.pod)
 | 
			
		||||
HTMLPAGES   = $(COMPONENTS-yes:%=doc/%.html) $(LIBRARIES-yes:%=doc/%.html)     \
 | 
			
		||||
              doc/developer.html                                        \
 | 
			
		||||
              doc/faq.html                                              \
 | 
			
		||||
              doc/fate.html                                             \
 | 
			
		||||
@@ -36,30 +35,6 @@ DOCS-$(CONFIG_MANPAGES)  += $(MANPAGES)
 | 
			
		||||
DOCS-$(CONFIG_TXTPAGES)  += $(TXTPAGES)
 | 
			
		||||
DOCS = $(DOCS-yes)
 | 
			
		||||
 | 
			
		||||
DOC_EXAMPLES-$(CONFIG_AVIO_DIR_CMD_EXAMPLE)      += avio_dir_cmd
 | 
			
		||||
DOC_EXAMPLES-$(CONFIG_AVIO_READING_EXAMPLE)      += avio_reading
 | 
			
		||||
DOC_EXAMPLES-$(CONFIG_AVCODEC_EXAMPLE)           += avcodec
 | 
			
		||||
DOC_EXAMPLES-$(CONFIG_DECODING_ENCODING_EXAMPLE) += decoding_encoding
 | 
			
		||||
DOC_EXAMPLES-$(CONFIG_DEMUXING_DECODING_EXAMPLE) += demuxing_decoding
 | 
			
		||||
DOC_EXAMPLES-$(CONFIG_EXTRACT_MVS_EXAMPLE)       += extract_mvs
 | 
			
		||||
DOC_EXAMPLES-$(CONFIG_FILTER_AUDIO_EXAMPLE)      += filter_audio
 | 
			
		||||
DOC_EXAMPLES-$(CONFIG_FILTERING_AUDIO_EXAMPLE)   += filtering_audio
 | 
			
		||||
DOC_EXAMPLES-$(CONFIG_FILTERING_VIDEO_EXAMPLE)   += filtering_video
 | 
			
		||||
DOC_EXAMPLES-$(CONFIG_METADATA_EXAMPLE)          += metadata
 | 
			
		||||
DOC_EXAMPLES-$(CONFIG_MUXING_EXAMPLE)            += muxing
 | 
			
		||||
DOC_EXAMPLES-$(CONFIG_QSVDEC_EXAMPLE)            += qsvdec
 | 
			
		||||
DOC_EXAMPLES-$(CONFIG_REMUXING_EXAMPLE)          += remuxing
 | 
			
		||||
DOC_EXAMPLES-$(CONFIG_RESAMPLING_AUDIO_EXAMPLE)  += resampling_audio
 | 
			
		||||
DOC_EXAMPLES-$(CONFIG_SCALING_VIDEO_EXAMPLE)     += scaling_video
 | 
			
		||||
DOC_EXAMPLES-$(CONFIG_TRANSCODE_AAC_EXAMPLE)     += transcode_aac
 | 
			
		||||
DOC_EXAMPLES-$(CONFIG_TRANSCODING_EXAMPLE)       += transcoding
 | 
			
		||||
ALL_DOC_EXAMPLES_LIST = $(DOC_EXAMPLES-) $(DOC_EXAMPLES-yes)
 | 
			
		||||
 | 
			
		||||
DOC_EXAMPLES       := $(DOC_EXAMPLES-yes:%=doc/examples/%$(PROGSSUF)$(EXESUF))
 | 
			
		||||
ALL_DOC_EXAMPLES   := $(ALL_DOC_EXAMPLES_LIST:%=doc/examples/%$(PROGSSUF)$(EXESUF))
 | 
			
		||||
ALL_DOC_EXAMPLES_G := $(ALL_DOC_EXAMPLES_LIST:%=doc/examples/%$(PROGSSUF)_g$(EXESUF))
 | 
			
		||||
PROGS              += $(DOC_EXAMPLES)
 | 
			
		||||
 | 
			
		||||
all-$(CONFIG_DOC): doc
 | 
			
		||||
 | 
			
		||||
doc: documentation
 | 
			
		||||
@@ -67,9 +42,7 @@ doc: documentation
 | 
			
		||||
apidoc: doc/doxy/html
 | 
			
		||||
documentation: $(DOCS)
 | 
			
		||||
 | 
			
		||||
examples: $(DOC_EXAMPLES)
 | 
			
		||||
 | 
			
		||||
TEXIDEP = perl $(SRC_PATH)/doc/texidep.pl $(SRC_PATH) $< $@ >$(@:%=%.d)
 | 
			
		||||
TEXIDEP = awk '/^@(verbatim)?include/ { printf "$@: $(@D)/%s\n", $$2 }' <$< >$(@:%=%.d)
 | 
			
		||||
 | 
			
		||||
doc/%.txt: TAG = TXT
 | 
			
		||||
doc/%.txt: doc/%.texi
 | 
			
		||||
@@ -84,99 +57,45 @@ $(GENTEXI): doc/avoptions_%.texi: doc/print_options$(HOSTEXESUF)
 | 
			
		||||
	$(M)doc/print_options $* > $@
 | 
			
		||||
 | 
			
		||||
doc/%.html: TAG = HTML
 | 
			
		||||
doc/%-all.html: TAG = HTML
 | 
			
		||||
 | 
			
		||||
ifdef HAVE_MAKEINFO_HTML
 | 
			
		||||
doc/%.html: doc/%.texi $(SRC_PATH)/doc/t2h.pm $(GENTEXI)
 | 
			
		||||
	$(Q)$(TEXIDEP)
 | 
			
		||||
	$(M)makeinfo --html -I doc --no-split -D config-not-all --init-file=$(SRC_PATH)/doc/t2h.pm --output $@ $<
 | 
			
		||||
 | 
			
		||||
doc/%-all.html: doc/%.texi $(SRC_PATH)/doc/t2h.pm $(GENTEXI)
 | 
			
		||||
	$(Q)$(TEXIDEP)
 | 
			
		||||
	$(M)makeinfo --html -I doc --no-split -D config-all --init-file=$(SRC_PATH)/doc/t2h.pm --output $@ $<
 | 
			
		||||
else
 | 
			
		||||
doc/%.html: doc/%.texi $(SRC_PATH)/doc/t2h.init $(GENTEXI)
 | 
			
		||||
	$(Q)$(TEXIDEP)
 | 
			
		||||
	$(M)texi2html -I doc -monolithic --D=config-not-all --init-file $(SRC_PATH)/doc/t2h.init --output $@ $<
 | 
			
		||||
 | 
			
		||||
doc/%-all.html: doc/%.texi $(SRC_PATH)/doc/t2h.init $(GENTEXI)
 | 
			
		||||
	$(Q)$(TEXIDEP)
 | 
			
		||||
	$(M)texi2html -I doc -monolithic --D=config-all --init-file $(SRC_PATH)/doc/t2h.init --output $@ $<
 | 
			
		||||
endif
 | 
			
		||||
	$(M)texi2html -I doc -monolithic --init-file $(SRC_PATH)/doc/t2h.init --output $@ $<
 | 
			
		||||
 | 
			
		||||
doc/%.pod: TAG = POD
 | 
			
		||||
doc/%.pod: doc/%.texi $(SRC_PATH)/doc/texi2pod.pl $(GENTEXI)
 | 
			
		||||
	$(Q)$(TEXIDEP)
 | 
			
		||||
	$(M)perl $(SRC_PATH)/doc/texi2pod.pl -Dconfig-not-all=yes -Idoc $< $@
 | 
			
		||||
 | 
			
		||||
doc/%-all.pod: TAG = POD
 | 
			
		||||
doc/%-all.pod: doc/%.texi $(SRC_PATH)/doc/texi2pod.pl $(GENTEXI)
 | 
			
		||||
	$(Q)$(TEXIDEP)
 | 
			
		||||
	$(M)perl $(SRC_PATH)/doc/texi2pod.pl -Dconfig-all=yes -Idoc $< $@
 | 
			
		||||
	$(M)perl $(SRC_PATH)/doc/texi2pod.pl -Idoc $< $@
 | 
			
		||||
 | 
			
		||||
doc/%.1 doc/%.3: TAG = MAN
 | 
			
		||||
doc/%.1: doc/%.pod $(GENTEXI)
 | 
			
		||||
	$(M)pod2man --section=1 --center=" " --release=" " --date=" " $< > $@
 | 
			
		||||
	$(M)pod2man --section=1 --center=" " --release=" " $< > $@
 | 
			
		||||
doc/%.3: doc/%.pod $(GENTEXI)
 | 
			
		||||
	$(M)pod2man --section=3 --center=" " --release=" " --date=" " $< > $@
 | 
			
		||||
	$(M)pod2man --section=3 --center=" " --release=" " $< > $@
 | 
			
		||||
 | 
			
		||||
$(DOCS) doc/doxy/html: | doc/
 | 
			
		||||
$(DOC_EXAMPLES:%$(EXESUF)=%.o): | doc/examples
 | 
			
		||||
OBJDIRS += doc/examples
 | 
			
		||||
 | 
			
		||||
DOXY_INPUT      = $(addprefix $(SRC_PATH)/, $(INSTHEADERS) $(DOC_EXAMPLES:%$(EXESUF)=%.c) $(LIB_EXAMPLES:%$(EXESUF)=%.c))
 | 
			
		||||
 | 
			
		||||
doc/doxy/html: TAG = DOXY
 | 
			
		||||
doc/doxy/html: $(SRC_PATH)/doc/Doxyfile $(SRC_PATH)/doc/doxy-wrapper.sh $(DOXY_INPUT)
 | 
			
		||||
	$(M)$(SRC_PATH)/doc/doxy-wrapper.sh $(SRC_PATH) $< $(DOXYGEN) $(DOXY_INPUT)
 | 
			
		||||
 | 
			
		||||
install-doc: install-html install-man
 | 
			
		||||
 | 
			
		||||
install-html:
 | 
			
		||||
doc/doxy/html: $(SRC_PATH)/doc/Doxyfile $(INSTHEADERS)
 | 
			
		||||
	$(M)$(SRC_PATH)/doc/doxy-wrapper.sh $(SRC_PATH) $^
 | 
			
		||||
 | 
			
		||||
install-man:
 | 
			
		||||
 | 
			
		||||
ifdef CONFIG_HTMLPAGES
 | 
			
		||||
install-progs-$(CONFIG_DOC): install-html
 | 
			
		||||
 | 
			
		||||
install-html: $(HTMLPAGES)
 | 
			
		||||
	$(Q)mkdir -p "$(DOCDIR)"
 | 
			
		||||
	$(INSTALL) -m 644 $(HTMLPAGES) "$(DOCDIR)"
 | 
			
		||||
endif
 | 
			
		||||
 | 
			
		||||
ifdef CONFIG_MANPAGES
 | 
			
		||||
install-progs-$(CONFIG_DOC): install-man
 | 
			
		||||
 | 
			
		||||
install-man: $(MANPAGES)
 | 
			
		||||
	$(Q)mkdir -p "$(MANDIR)/man1"
 | 
			
		||||
	$(INSTALL) -m 644 $(MANPAGES1) "$(MANDIR)/man1"
 | 
			
		||||
	$(Q)mkdir -p "$(MANDIR)/man3"
 | 
			
		||||
	$(INSTALL) -m 644 $(MANPAGES3) "$(MANDIR)/man3"
 | 
			
		||||
	$(INSTALL) -m 644 $(MANPAGES) "$(MANDIR)/man1"
 | 
			
		||||
endif
 | 
			
		||||
 | 
			
		||||
uninstall: uninstall-doc
 | 
			
		||||
 | 
			
		||||
uninstall-doc: uninstall-html uninstall-man
 | 
			
		||||
 | 
			
		||||
uninstall-html:
 | 
			
		||||
	$(RM) -r "$(DOCDIR)"
 | 
			
		||||
uninstall: uninstall-man
 | 
			
		||||
 | 
			
		||||
uninstall-man:
 | 
			
		||||
	$(RM) $(addprefix "$(MANDIR)/man1/",$(AVPROGS-yes:%=%.1) $(AVPROGS-yes:%=%-all.1) $(COMPONENTS-yes:%=%.1))
 | 
			
		||||
	$(RM) $(addprefix "$(MANDIR)/man3/",$(LIBRARIES-yes:%=%.3))
 | 
			
		||||
	$(RM) $(addprefix "$(MANDIR)/man1/",$(ALLMANPAGES))
 | 
			
		||||
 | 
			
		||||
clean:: docclean
 | 
			
		||||
 | 
			
		||||
distclean:: docclean
 | 
			
		||||
	$(RM) doc/config.texi
 | 
			
		||||
 | 
			
		||||
examplesclean:
 | 
			
		||||
	$(RM) $(ALL_DOC_EXAMPLES) $(ALL_DOC_EXAMPLES_G)
 | 
			
		||||
	$(RM) $(CLEANSUFFIXES:%=doc/examples/%)
 | 
			
		||||
 | 
			
		||||
docclean: examplesclean
 | 
			
		||||
	$(RM) $(CLEANSUFFIXES:%=doc/%)
 | 
			
		||||
	$(RM) $(TXTPAGES) doc/*.html doc/*.pod doc/*.1 doc/*.3 doc/avoptions_*.texi
 | 
			
		||||
docclean:
 | 
			
		||||
	$(RM) $(TXTPAGES) doc/*.html doc/*.pod doc/*.1 doc/*.3 $(CLEANSUFFIXES:%=doc/%) doc/avoptions_*.texi
 | 
			
		||||
	$(RM) -r doc/doxy/html
 | 
			
		||||
 | 
			
		||||
-include $(wildcard $(DOCS:%=%.d))
 | 
			
		||||
 
 | 
			
		||||
							
								
								
									
										16
									
								
								doc/RELEASE_NOTES
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										16
									
								
								doc/RELEASE_NOTES
									
									
									
									
									
										Normal file
									
								
							@@ -0,0 +1,16 @@
 | 
			
		||||
Release Notes
 | 
			
		||||
=============
 | 
			
		||||
 | 
			
		||||
* 1.2 "Magic"  March, 2013
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
General notes
 | 
			
		||||
-------------
 | 
			
		||||
See the Changelog file for a list of significant changes. Note, there
 | 
			
		||||
are many more new features and bugfixes than whats listed there.
 | 
			
		||||
 | 
			
		||||
Bugreports against FFmpeg git master or the most recent FFmpeg release are
 | 
			
		||||
accepted. If you are experiencing issues with any formally released version of
 | 
			
		||||
FFmpeg, please try git master to check if the issue still exists. If it does,
 | 
			
		||||
make your report against the development code following the usual bug reporting
 | 
			
		||||
guidelines.
 | 
			
		||||
							
								
								
									
										211
									
								
								doc/avtools-common-opts.texi
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										211
									
								
								doc/avtools-common-opts.texi
									
									
									
									
									
										Normal file
									
								
							@@ -0,0 +1,211 @@
 | 
			
		||||
All the numerical options, if not specified otherwise, accept in input
 | 
			
		||||
a string representing a number, which may contain one of the
 | 
			
		||||
SI unit prefixes, for example 'K', 'M', 'G'.
 | 
			
		||||
If 'i' is appended after the prefix, binary prefixes are used,
 | 
			
		||||
which are based on powers of 1024 instead of powers of 1000.
 | 
			
		||||
The 'B' postfix multiplies the value by 8, and can be
 | 
			
		||||
appended after a unit prefix or used alone. This allows using for
 | 
			
		||||
example 'KB', 'MiB', 'G' and 'B' as number postfix.
 | 
			
		||||
 | 
			
		||||
Options which do not take arguments are boolean options, and set the
 | 
			
		||||
corresponding value to true. They can be set to false by prefixing
 | 
			
		||||
with "no" the option name, for example using "-nofoo" in the
 | 
			
		||||
command line will set to false the boolean option with name "foo".
 | 
			
		||||
 | 
			
		||||
@anchor{Stream specifiers}
 | 
			
		||||
@section Stream specifiers
 | 
			
		||||
Some options are applied per-stream, e.g. bitrate or codec. Stream specifiers
 | 
			
		||||
are used to precisely specify which stream(s) does a given option belong to.
 | 
			
		||||
 | 
			
		||||
A stream specifier is a string generally appended to the option name and
 | 
			
		||||
separated from it by a colon. E.g. @code{-codec:a:1 ac3} option contains
 | 
			
		||||
@code{a:1} stream specifier, which matches the second audio stream. Therefore it
 | 
			
		||||
would select the ac3 codec for the second audio stream.
 | 
			
		||||
 | 
			
		||||
A stream specifier can match several streams, the option is then applied to all
 | 
			
		||||
of them. E.g. the stream specifier in @code{-b:a 128k} matches all audio
 | 
			
		||||
streams.
 | 
			
		||||
 | 
			
		||||
An empty stream specifier matches all streams, for example @code{-codec copy}
 | 
			
		||||
or @code{-codec: copy} would copy all the streams without reencoding.
 | 
			
		||||
 | 
			
		||||
Possible forms of stream specifiers are:
 | 
			
		||||
@table @option
 | 
			
		||||
@item @var{stream_index}
 | 
			
		||||
Matches the stream with this index. E.g. @code{-threads:1 4} would set the
 | 
			
		||||
thread count for the second stream to 4.
 | 
			
		||||
@item @var{stream_type}[:@var{stream_index}]
 | 
			
		||||
@var{stream_type} is one of: 'v' for video, 'a' for audio, 's' for subtitle,
 | 
			
		||||
'd' for data and 't' for attachments. If @var{stream_index} is given, then
 | 
			
		||||
matches stream number @var{stream_index} of this type. Otherwise matches all
 | 
			
		||||
streams of this type.
 | 
			
		||||
@item p:@var{program_id}[:@var{stream_index}]
 | 
			
		||||
If @var{stream_index} is given, then matches stream number @var{stream_index} in
 | 
			
		||||
program with id @var{program_id}. Otherwise matches all streams in this program.
 | 
			
		||||
@item #@var{stream_id}
 | 
			
		||||
Matches the stream by format-specific ID.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@section Generic options
 | 
			
		||||
 | 
			
		||||
These options are shared amongst the av* tools.
 | 
			
		||||
 | 
			
		||||
@table @option
 | 
			
		||||
 | 
			
		||||
@item -L
 | 
			
		||||
Show license.
 | 
			
		||||
 | 
			
		||||
@item -h, -?, -help, --help [@var{arg}]
 | 
			
		||||
Show help. An optional parameter may be specified to print help about a specific
 | 
			
		||||
item.
 | 
			
		||||
 | 
			
		||||
Possible values of @var{arg} are:
 | 
			
		||||
@table @option
 | 
			
		||||
@item decoder=@var{decoder_name}
 | 
			
		||||
Print detailed information about the decoder named @var{decoder_name}. Use the
 | 
			
		||||
@option{-decoders} option to get a list of all decoders.
 | 
			
		||||
 | 
			
		||||
@item encoder=@var{encoder_name}
 | 
			
		||||
Print detailed information about the encoder named @var{encoder_name}. Use the
 | 
			
		||||
@option{-encoders} option to get a list of all encoders.
 | 
			
		||||
 | 
			
		||||
@item demuxer=@var{demuxer_name}
 | 
			
		||||
Print detailed information about the demuxer named @var{demuxer_name}. Use the
 | 
			
		||||
@option{-formats} option to get a list of all demuxers and muxers.
 | 
			
		||||
 | 
			
		||||
@item muxer=@var{muxer_name}
 | 
			
		||||
Print detailed information about the muxer named @var{muxer_name}. Use the
 | 
			
		||||
@option{-formats} option to get a list of all muxers and demuxers.
 | 
			
		||||
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@item -version
 | 
			
		||||
Show version.
 | 
			
		||||
 | 
			
		||||
@item -formats
 | 
			
		||||
Show available formats.
 | 
			
		||||
 | 
			
		||||
The fields preceding the format names have the following meanings:
 | 
			
		||||
@table @samp
 | 
			
		||||
@item D
 | 
			
		||||
Decoding available
 | 
			
		||||
@item E
 | 
			
		||||
Encoding available
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@item -codecs
 | 
			
		||||
Show all codecs known to libavcodec.
 | 
			
		||||
 | 
			
		||||
Note that the term 'codec' is used throughout this documentation as a shortcut
 | 
			
		||||
for what is more correctly called a media bitstream format.
 | 
			
		||||
 | 
			
		||||
@item -decoders
 | 
			
		||||
Show available decoders.
 | 
			
		||||
 | 
			
		||||
@item -encoders
 | 
			
		||||
Show all available encoders.
 | 
			
		||||
 | 
			
		||||
@item -bsfs
 | 
			
		||||
Show available bitstream filters.
 | 
			
		||||
 | 
			
		||||
@item -protocols
 | 
			
		||||
Show available protocols.
 | 
			
		||||
 | 
			
		||||
@item -filters
 | 
			
		||||
Show available libavfilter filters.
 | 
			
		||||
 | 
			
		||||
@item -pix_fmts
 | 
			
		||||
Show available pixel formats.
 | 
			
		||||
 | 
			
		||||
@item -sample_fmts
 | 
			
		||||
Show available sample formats.
 | 
			
		||||
 | 
			
		||||
@item -layouts
 | 
			
		||||
Show channel names and standard channel layouts.
 | 
			
		||||
 | 
			
		||||
@item -loglevel @var{loglevel} | -v @var{loglevel}
 | 
			
		||||
Set the logging level used by the library.
 | 
			
		||||
@var{loglevel} is a number or a string containing one of the following values:
 | 
			
		||||
@table @samp
 | 
			
		||||
@item quiet
 | 
			
		||||
@item panic
 | 
			
		||||
@item fatal
 | 
			
		||||
@item error
 | 
			
		||||
@item warning
 | 
			
		||||
@item info
 | 
			
		||||
@item verbose
 | 
			
		||||
@item debug
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
By default the program logs to stderr, if coloring is supported by the
 | 
			
		||||
terminal, colors are used to mark errors and warnings. Log coloring
 | 
			
		||||
can be disabled setting the environment variable
 | 
			
		||||
@env{AV_LOG_FORCE_NOCOLOR} or @env{NO_COLOR}, or can be forced setting
 | 
			
		||||
the environment variable @env{AV_LOG_FORCE_COLOR}.
 | 
			
		||||
The use of the environment variable @env{NO_COLOR} is deprecated and
 | 
			
		||||
will be dropped in a following FFmpeg version.
 | 
			
		||||
 | 
			
		||||
@item -report
 | 
			
		||||
Dump full command line and console output to a file named
 | 
			
		||||
@code{@var{program}-@var{YYYYMMDD}-@var{HHMMSS}.log} in the current
 | 
			
		||||
directory.
 | 
			
		||||
This file can be useful for bug reports.
 | 
			
		||||
It also implies @code{-loglevel verbose}.
 | 
			
		||||
 | 
			
		||||
Setting the environment variable @code{FFREPORT} to any value has the
 | 
			
		||||
same effect. If the value is a ':'-separated key=value sequence, these
 | 
			
		||||
options will affect the report; options values must be escaped if they
 | 
			
		||||
contain special characters or the options delimiter ':' (see the
 | 
			
		||||
``Quoting and escaping'' section in the ffmpeg-utils manual). The
 | 
			
		||||
following option is recognized:
 | 
			
		||||
@table @option
 | 
			
		||||
@item file
 | 
			
		||||
set the file name to use for the report; @code{%p} is expanded to the name
 | 
			
		||||
of the program, @code{%t} is expanded to a timestamp, @code{%%} is expanded
 | 
			
		||||
to a plain @code{%}
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
Errors in parsing the environment variable are not fatal, and will not
 | 
			
		||||
appear in the report.
 | 
			
		||||
 | 
			
		||||
@item -cpuflags flags (@emph{global})
 | 
			
		||||
Allows setting and clearing cpu flags. This option is intended
 | 
			
		||||
for testing. Do not use it unless you know what you're doing.
 | 
			
		||||
@example
 | 
			
		||||
ffmpeg -cpuflags -sse+mmx ...
 | 
			
		||||
ffmpeg -cpuflags mmx ...
 | 
			
		||||
ffmpeg -cpuflags 0 ...
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@section AVOptions
 | 
			
		||||
 | 
			
		||||
These options are provided directly by the libavformat, libavdevice and
 | 
			
		||||
libavcodec libraries. To see the list of available AVOptions, use the
 | 
			
		||||
@option{-help} option. They are separated into two categories:
 | 
			
		||||
@table @option
 | 
			
		||||
@item generic
 | 
			
		||||
These options can be set for any container, codec or device. Generic options
 | 
			
		||||
are listed under AVFormatContext options for containers/devices and under
 | 
			
		||||
AVCodecContext options for codecs.
 | 
			
		||||
@item private
 | 
			
		||||
These options are specific to the given container, device or codec. Private
 | 
			
		||||
options are listed under their corresponding containers/devices/codecs.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
For example to write an ID3v2.3 header instead of a default ID3v2.4 to
 | 
			
		||||
an MP3 file, use the @option{id3v2_version} private option of the MP3
 | 
			
		||||
muxer:
 | 
			
		||||
@example
 | 
			
		||||
ffmpeg -i input.flac -id3v2_version 3 out.mp3
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
All codec AVOptions are obviously per-stream, so the chapter on stream
 | 
			
		||||
specifiers applies to them
 | 
			
		||||
 | 
			
		||||
Note @option{-nooption} syntax cannot be used for boolean AVOptions,
 | 
			
		||||
use @option{-option 0}/@option{-option 1}.
 | 
			
		||||
 | 
			
		||||
Note2 old undocumented way of specifying per-stream AVOptions by prepending
 | 
			
		||||
v/a/s to the options name is now obsolete and will be removed soon.
 | 
			
		||||
							
								
								
									
										36
									
								
								doc/avutil.txt
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										36
									
								
								doc/avutil.txt
									
									
									
									
									
										Normal file
									
								
							@@ -0,0 +1,36 @@
 | 
			
		||||
AVUtil
 | 
			
		||||
======
 | 
			
		||||
libavutil is a small lightweight library of generally useful functions.
 | 
			
		||||
It is not a library for code needed by both libavcodec and libavformat.
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
Overview:
 | 
			
		||||
=========
 | 
			
		||||
adler32.c               adler32 checksum
 | 
			
		||||
aes.c                   AES encryption and decryption
 | 
			
		||||
fifo.c                  resizeable first in first out buffer
 | 
			
		||||
intfloat_readwrite.c    portable reading and writing of floating point values
 | 
			
		||||
log.c                   "printf" with context and level
 | 
			
		||||
md5.c                   MD5 Message-Digest Algorithm
 | 
			
		||||
rational.c              code to perform exact calculations with rational numbers
 | 
			
		||||
tree.c                  generic AVL tree
 | 
			
		||||
crc.c                   generic CRC checksumming code
 | 
			
		||||
integer.c               128bit integer math
 | 
			
		||||
lls.c
 | 
			
		||||
mathematics.c           greatest common divisor, integer sqrt, integer log2, ...
 | 
			
		||||
mem.c                   memory allocation routines with guaranteed alignment
 | 
			
		||||
 | 
			
		||||
Headers:
 | 
			
		||||
bswap.h                 big/little/native-endian conversion code
 | 
			
		||||
x86_cpu.h               a few useful macros for unifying x86-64 and x86-32 code
 | 
			
		||||
avutil.h
 | 
			
		||||
common.h
 | 
			
		||||
intreadwrite.h          reading and writing of unaligned big/little/native-endian integers
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
Goals:
 | 
			
		||||
======
 | 
			
		||||
* Modular (few interdependencies and the possibility of disabling individual parts during ./configure)
 | 
			
		||||
* Small (source and object)
 | 
			
		||||
* Efficient (low CPU and memory usage)
 | 
			
		||||
* Useful (avoid useless features almost no one needs)
 | 
			
		||||
@@ -13,59 +13,13 @@ bitstream filter using the option @code{--disable-bsf=BSF}.
 | 
			
		||||
The option @code{-bsfs} of the ff* tools will display the list of
 | 
			
		||||
all the supported bitstream filters included in your build.
 | 
			
		||||
 | 
			
		||||
The ff* tools have a -bsf option applied per stream, taking a
 | 
			
		||||
comma-separated list of filters, whose parameters follow the filter
 | 
			
		||||
name after a '='.
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
ffmpeg -i INPUT -c:v copy -bsf:v filter1[=opt1=str1/opt2=str2][,filter2] OUTPUT
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
Below is a description of the currently available bitstream filters,
 | 
			
		||||
with their parameters, if any.
 | 
			
		||||
Below is a description of the currently available bitstream filters.
 | 
			
		||||
 | 
			
		||||
@section aac_adtstoasc
 | 
			
		||||
 | 
			
		||||
Convert MPEG-2/4 AAC ADTS to MPEG-4 Audio Specific Configuration
 | 
			
		||||
bitstream filter.
 | 
			
		||||
 | 
			
		||||
This filter creates an MPEG-4 AudioSpecificConfig from an MPEG-2/4
 | 
			
		||||
ADTS header and removes the ADTS header.
 | 
			
		||||
 | 
			
		||||
This is required for example when copying an AAC stream from a raw
 | 
			
		||||
ADTS AAC container to a FLV or a MOV/MP4 file.
 | 
			
		||||
 | 
			
		||||
@section chomp
 | 
			
		||||
 | 
			
		||||
Remove zero padding at the end of a packet.
 | 
			
		||||
 | 
			
		||||
@section dump_extra
 | 
			
		||||
 | 
			
		||||
Add extradata to the beginning of the filtered packets.
 | 
			
		||||
 | 
			
		||||
The additional argument specifies which packets should be filtered.
 | 
			
		||||
It accepts the values:
 | 
			
		||||
@table @samp
 | 
			
		||||
@item a
 | 
			
		||||
add extradata to all key packets, but only if @var{local_header} is
 | 
			
		||||
set in the @option{flags2} codec context field
 | 
			
		||||
 | 
			
		||||
@item k
 | 
			
		||||
add extradata to all key packets
 | 
			
		||||
 | 
			
		||||
@item e
 | 
			
		||||
add extradata to all packets
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
If not specified it is assumed @samp{k}.
 | 
			
		||||
 | 
			
		||||
For example the following @command{ffmpeg} command forces a global
 | 
			
		||||
header (thus disabling individual packet headers) in the H.264 packets
 | 
			
		||||
generated by the @code{libx264} encoder, but corrects them by adding
 | 
			
		||||
the header stored in extradata to the key packets:
 | 
			
		||||
@example
 | 
			
		||||
ffmpeg -i INPUT -map 0 -flags:v +global_header -c:v libx264 -bsf:v dump_extra out.ts
 | 
			
		||||
@end example
 | 
			
		||||
@section dump_extradata
 | 
			
		||||
 | 
			
		||||
@section h264_mp4toannexb
 | 
			
		||||
 | 
			
		||||
@@ -83,18 +37,7 @@ format with @command{ffmpeg}, you can use the command:
 | 
			
		||||
ffmpeg -i INPUT.mp4 -codec copy -bsf:v h264_mp4toannexb OUTPUT.ts
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@section imxdump
 | 
			
		||||
 | 
			
		||||
Modifies the bitstream to fit in MOV and to be usable by the Final Cut
 | 
			
		||||
Pro decoder. This filter only applies to the mpeg2video codec, and is
 | 
			
		||||
likely not needed for Final Cut Pro 7 and newer with the appropriate
 | 
			
		||||
@option{-tag:v}.
 | 
			
		||||
 | 
			
		||||
For example, to remux 30 MB/sec NTSC IMX to MOV:
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
ffmpeg -i input.mxf -c copy -bsf:v imxdump -tag:v mx3n output.mov
 | 
			
		||||
@end example
 | 
			
		||||
@section imx_dump_header
 | 
			
		||||
 | 
			
		||||
@section mjpeg2jpeg
 | 
			
		||||
 | 
			
		||||
@@ -137,44 +80,12 @@ ffmpeg -i frame_%d.jpg -c:v copy rotated.avi
 | 
			
		||||
 | 
			
		||||
@section movsub
 | 
			
		||||
 | 
			
		||||
@section mp3_header_compress
 | 
			
		||||
 | 
			
		||||
@section mp3_header_decompress
 | 
			
		||||
 | 
			
		||||
@section mpeg4_unpack_bframes
 | 
			
		||||
 | 
			
		||||
Unpack DivX-style packed B-frames.
 | 
			
		||||
 | 
			
		||||
DivX-style packed B-frames are not valid MPEG-4 and were only a
 | 
			
		||||
workaround for the broken Video for Windows subsystem.
 | 
			
		||||
They use more space, can cause minor AV sync issues, require more
 | 
			
		||||
CPU power to decode (unless the player has some decoded picture queue
 | 
			
		||||
to compensate the 2,0,2,0 frame per packet style) and cause
 | 
			
		||||
trouble if copied into a standard container like mp4 or mpeg-ps/ts,
 | 
			
		||||
because MPEG-4 decoders may not be able to decode them, since they are
 | 
			
		||||
not valid MPEG-4.
 | 
			
		||||
 | 
			
		||||
For example to fix an AVI file containing an MPEG-4 stream with
 | 
			
		||||
DivX-style packed B-frames using @command{ffmpeg}, you can use the command:
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
ffmpeg -i INPUT.avi -codec copy -bsf:v mpeg4_unpack_bframes OUTPUT.avi
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@section noise
 | 
			
		||||
 | 
			
		||||
Damages the contents of packets without damaging the container. Can be
 | 
			
		||||
used for fuzzing or testing error resilience/concealment.
 | 
			
		||||
 | 
			
		||||
Parameters:
 | 
			
		||||
A numeral string, whose value is related to how often output bytes will
 | 
			
		||||
be modified. Therefore, values below or equal to 0 are forbidden, and
 | 
			
		||||
the lower the more frequent bytes will be modified, with 1 meaning
 | 
			
		||||
every byte is modified.
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
ffmpeg -i INPUT -c copy -bsf noise[=1] output.mkv
 | 
			
		||||
@end example
 | 
			
		||||
applies the modification to every byte.
 | 
			
		||||
 | 
			
		||||
@section remove_extra
 | 
			
		||||
@section remove_extradata
 | 
			
		||||
 | 
			
		||||
@c man end BITSTREAM FILTERS
 | 
			
		||||
 
 | 
			
		||||
							
								
								
									
										5
									
								
								doc/bootstrap.min.css
									
									
									
									
										vendored
									
									
								
							
							
						
						
									
										5
									
								
								doc/bootstrap.min.css
									
									
									
									
										vendored
									
									
								
							
										
											
												File diff suppressed because one or more lines are too long
											
										
									
								
							@@ -7,18 +7,10 @@ V
 | 
			
		||||
    Disable the default terse mode, the full command issued by make and its
 | 
			
		||||
    output will be shown on the screen.
 | 
			
		||||
 | 
			
		||||
DBG
 | 
			
		||||
    Preprocess x86 external assembler files to a .dbg.asm file in the object
 | 
			
		||||
    directory, which then gets compiled. Helps developping those assembler
 | 
			
		||||
    files.
 | 
			
		||||
 | 
			
		||||
DESTDIR
 | 
			
		||||
    Destination directory for the install targets, useful to prepare packages
 | 
			
		||||
    or install FFmpeg in cross-environments.
 | 
			
		||||
 | 
			
		||||
GEN
 | 
			
		||||
    Set to ‘1’ to generate the missing or mismatched references.
 | 
			
		||||
 | 
			
		||||
Makefile targets:
 | 
			
		||||
 | 
			
		||||
all
 | 
			
		||||
@@ -33,9 +25,6 @@ fate-list
 | 
			
		||||
install
 | 
			
		||||
    Install headers, libraries and programs.
 | 
			
		||||
 | 
			
		||||
examples
 | 
			
		||||
    Build all examples located in doc/examples.
 | 
			
		||||
 | 
			
		||||
libavformat/output-example
 | 
			
		||||
    Build the libavformat basic example.
 | 
			
		||||
 | 
			
		||||
@@ -45,9 +34,6 @@ libavcodec/api-example
 | 
			
		||||
libswscale/swscale-test
 | 
			
		||||
    Build the swscale self-test (useful also as example).
 | 
			
		||||
 | 
			
		||||
config
 | 
			
		||||
    Reconfigure the project with current configuration.
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
Useful standard make commands:
 | 
			
		||||
make -t <target>
 | 
			
		||||
 
 | 
			
		||||
							
								
								
									
										1158
									
								
								doc/codecs.texi
									
									
									
									
									
								
							
							
						
						
									
										1158
									
								
								doc/codecs.texi
									
									
									
									
									
								
							
										
											
												File diff suppressed because it is too large
												Load Diff
											
										
									
								
							@@ -14,7 +14,7 @@ You can disable all the decoders with the configure option
 | 
			
		||||
with the options @code{--enable-decoder=@var{DECODER}} /
 | 
			
		||||
@code{--disable-decoder=@var{DECODER}}.
 | 
			
		||||
 | 
			
		||||
The option @code{-decoders} of the ff* tools will display the list of
 | 
			
		||||
The option @code{-codecs} of the ff* tools will display the list of
 | 
			
		||||
enabled decoders.
 | 
			
		||||
 | 
			
		||||
@c man end DECODERS
 | 
			
		||||
@@ -25,13 +25,6 @@ enabled decoders.
 | 
			
		||||
A description of some of the currently available video decoders
 | 
			
		||||
follows.
 | 
			
		||||
 | 
			
		||||
@section hevc
 | 
			
		||||
 | 
			
		||||
HEVC / H.265 decoder.
 | 
			
		||||
 | 
			
		||||
Note: the @option{skip_loop_filter} option has effect only at level
 | 
			
		||||
@code{all}.
 | 
			
		||||
 | 
			
		||||
@section rawvideo
 | 
			
		||||
 | 
			
		||||
Raw video decoder.
 | 
			
		||||
@@ -59,54 +52,6 @@ top-field-first is assumed
 | 
			
		||||
@chapter Audio Decoders
 | 
			
		||||
@c man begin AUDIO DECODERS
 | 
			
		||||
 | 
			
		||||
A description of some of the currently available audio decoders
 | 
			
		||||
follows.
 | 
			
		||||
 | 
			
		||||
@section ac3
 | 
			
		||||
 | 
			
		||||
AC-3 audio decoder.
 | 
			
		||||
 | 
			
		||||
This decoder implements part of ATSC A/52:2010 and ETSI TS 102 366, as well as
 | 
			
		||||
the undocumented RealAudio 3 (a.k.a. dnet).
 | 
			
		||||
 | 
			
		||||
@subsection AC-3 Decoder Options
 | 
			
		||||
 | 
			
		||||
@table @option
 | 
			
		||||
 | 
			
		||||
@item -drc_scale @var{value}
 | 
			
		||||
Dynamic Range Scale Factor. The factor to apply to dynamic range values
 | 
			
		||||
from the AC-3 stream. This factor is applied exponentially.
 | 
			
		||||
There are 3 notable scale factor ranges:
 | 
			
		||||
@table @option
 | 
			
		||||
@item drc_scale == 0
 | 
			
		||||
DRC disabled. Produces full range audio.
 | 
			
		||||
@item 0 < drc_scale <= 1
 | 
			
		||||
DRC enabled.  Applies a fraction of the stream DRC value.
 | 
			
		||||
Audio reproduction is between full range and full compression.
 | 
			
		||||
@item drc_scale > 1
 | 
			
		||||
DRC enabled. Applies drc_scale asymmetrically.
 | 
			
		||||
Loud sounds are fully compressed.  Soft sounds are enhanced.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@section flac
 | 
			
		||||
 | 
			
		||||
FLAC audio decoder.
 | 
			
		||||
 | 
			
		||||
This decoder aims to implement the complete FLAC specification from Xiph.
 | 
			
		||||
 | 
			
		||||
@subsection FLAC Decoder options
 | 
			
		||||
 | 
			
		||||
@table @option
 | 
			
		||||
 | 
			
		||||
@item -use_buggy_lpc
 | 
			
		||||
The lavc FLAC encoder used to produce buggy streams with high lpc values
 | 
			
		||||
(like the default value). This option makes it possible to decode such streams
 | 
			
		||||
correctly by using lavc's old buggy lpc logic for decoding.
 | 
			
		||||
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@section ffwavesynth
 | 
			
		||||
 | 
			
		||||
Internal wave synthetizer.
 | 
			
		||||
@@ -115,105 +60,11 @@ This decoder generates wave patterns according to predefined sequences. Its
 | 
			
		||||
use is purely internal and the format of the data it accepts is not publicly
 | 
			
		||||
documented.
 | 
			
		||||
 | 
			
		||||
@section libcelt
 | 
			
		||||
 | 
			
		||||
libcelt decoder wrapper.
 | 
			
		||||
 | 
			
		||||
libcelt allows libavcodec to decode the Xiph CELT ultra-low delay audio codec.
 | 
			
		||||
Requires the presence of the libcelt headers and library during configuration.
 | 
			
		||||
You need to explicitly configure the build with @code{--enable-libcelt}.
 | 
			
		||||
 | 
			
		||||
@section libgsm
 | 
			
		||||
 | 
			
		||||
libgsm decoder wrapper.
 | 
			
		||||
 | 
			
		||||
libgsm allows libavcodec to decode the GSM full rate audio codec. Requires
 | 
			
		||||
the presence of the libgsm headers and library during configuration. You need
 | 
			
		||||
to explicitly configure the build with @code{--enable-libgsm}.
 | 
			
		||||
 | 
			
		||||
This decoder supports both the ordinary GSM and the Microsoft variant.
 | 
			
		||||
 | 
			
		||||
@section libilbc
 | 
			
		||||
 | 
			
		||||
libilbc decoder wrapper.
 | 
			
		||||
 | 
			
		||||
libilbc allows libavcodec to decode the Internet Low Bitrate Codec (iLBC)
 | 
			
		||||
audio codec. Requires the presence of the libilbc headers and library during
 | 
			
		||||
configuration. You need to explicitly configure the build with
 | 
			
		||||
@code{--enable-libilbc}.
 | 
			
		||||
 | 
			
		||||
@subsection Options
 | 
			
		||||
 | 
			
		||||
The following option is supported by the libilbc wrapper.
 | 
			
		||||
 | 
			
		||||
@table @option
 | 
			
		||||
@item enhance
 | 
			
		||||
 | 
			
		||||
Enable the enhancement of the decoded audio when set to 1. The default
 | 
			
		||||
value is 0 (disabled).
 | 
			
		||||
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@section libopencore-amrnb
 | 
			
		||||
 | 
			
		||||
libopencore-amrnb decoder wrapper.
 | 
			
		||||
 | 
			
		||||
libopencore-amrnb allows libavcodec to decode the Adaptive Multi-Rate
 | 
			
		||||
Narrowband audio codec. Using it requires the presence of the
 | 
			
		||||
libopencore-amrnb headers and library during configuration. You need to
 | 
			
		||||
explicitly configure the build with @code{--enable-libopencore-amrnb}.
 | 
			
		||||
 | 
			
		||||
An FFmpeg native decoder for AMR-NB exists, so users can decode AMR-NB
 | 
			
		||||
without this library.
 | 
			
		||||
 | 
			
		||||
@section libopencore-amrwb
 | 
			
		||||
 | 
			
		||||
libopencore-amrwb decoder wrapper.
 | 
			
		||||
 | 
			
		||||
libopencore-amrwb allows libavcodec to decode the Adaptive Multi-Rate
 | 
			
		||||
Wideband audio codec. Using it requires the presence of the
 | 
			
		||||
libopencore-amrwb headers and library during configuration. You need to
 | 
			
		||||
explicitly configure the build with @code{--enable-libopencore-amrwb}.
 | 
			
		||||
 | 
			
		||||
An FFmpeg native decoder for AMR-WB exists, so users can decode AMR-WB
 | 
			
		||||
without this library.
 | 
			
		||||
 | 
			
		||||
@section libopus
 | 
			
		||||
 | 
			
		||||
libopus decoder wrapper.
 | 
			
		||||
 | 
			
		||||
libopus allows libavcodec to decode the Opus Interactive Audio Codec.
 | 
			
		||||
Requires the presence of the libopus headers and library during
 | 
			
		||||
configuration. You need to explicitly configure the build with
 | 
			
		||||
@code{--enable-libopus}.
 | 
			
		||||
 | 
			
		||||
An FFmpeg native decoder for Opus exists, so users can decode Opus
 | 
			
		||||
without this library.
 | 
			
		||||
 | 
			
		||||
@c man end AUDIO DECODERS
 | 
			
		||||
 | 
			
		||||
@chapter Subtitles Decoders
 | 
			
		||||
@c man begin SUBTILES DECODERS
 | 
			
		||||
 | 
			
		||||
@section dvbsub
 | 
			
		||||
 | 
			
		||||
@subsection Options
 | 
			
		||||
 | 
			
		||||
@table @option
 | 
			
		||||
@item compute_clut
 | 
			
		||||
@table @option
 | 
			
		||||
@item -1
 | 
			
		||||
Compute clut if no matching CLUT is in the stream.
 | 
			
		||||
@item 0
 | 
			
		||||
Never compute CLUT
 | 
			
		||||
@item 1
 | 
			
		||||
Always compute CLUT and override the one provided in the stream.
 | 
			
		||||
@end table
 | 
			
		||||
@item dvb_substream
 | 
			
		||||
Selects the dvb substream, or all substreams if -1 which is default.
 | 
			
		||||
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@section dvdsub
 | 
			
		||||
 | 
			
		||||
This codec decodes the bitmap subtitles used in DVDs; the same subtitles can
 | 
			
		||||
@@ -233,56 +84,6 @@ The format for this option is a string containing 16 24-bits hexadecimal
 | 
			
		||||
numbers (without 0x prefix) separated by comas, for example @code{0d00ee,
 | 
			
		||||
ee450d, 101010, eaeaea, 0ce60b, ec14ed, ebff0b, 0d617a, 7b7b7b, d1d1d1,
 | 
			
		||||
7b2a0e, 0d950c, 0f007b, cf0dec, cfa80c, 7c127b}.
 | 
			
		||||
 | 
			
		||||
@item ifo_palette
 | 
			
		||||
Specify the IFO file from which the global palette is obtained.
 | 
			
		||||
(experimental)
 | 
			
		||||
 | 
			
		||||
@item forced_subs_only
 | 
			
		||||
Only decode subtitle entries marked as forced. Some titles have forced
 | 
			
		||||
and non-forced subtitles in the same track. Setting this flag to @code{1}
 | 
			
		||||
will only keep the forced subtitles. Default value is @code{0}.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@section libzvbi-teletext
 | 
			
		||||
 | 
			
		||||
Libzvbi allows libavcodec to decode DVB teletext pages and DVB teletext
 | 
			
		||||
subtitles. Requires the presence of the libzvbi headers and library during
 | 
			
		||||
configuration. You need to explicitly configure the build with
 | 
			
		||||
@code{--enable-libzvbi}.
 | 
			
		||||
 | 
			
		||||
@subsection Options
 | 
			
		||||
 | 
			
		||||
@table @option
 | 
			
		||||
@item txt_page
 | 
			
		||||
List of teletext page numbers to decode. You may use the special * string to
 | 
			
		||||
match all pages. Pages that do not match the specified list are dropped.
 | 
			
		||||
Default value is *.
 | 
			
		||||
@item txt_chop_top
 | 
			
		||||
Discards the top teletext line. Default value is 1.
 | 
			
		||||
@item txt_format
 | 
			
		||||
Specifies the format of the decoded subtitles. The teletext decoder is capable
 | 
			
		||||
of decoding the teletext pages to bitmaps or to simple text, you should use
 | 
			
		||||
"bitmap" for teletext pages, because certain graphics and colors cannot be
 | 
			
		||||
expressed in simple text. You might use "text" for teletext based subtitles if
 | 
			
		||||
your application can handle simple text based subtitles. Default value is
 | 
			
		||||
bitmap.
 | 
			
		||||
@item txt_left
 | 
			
		||||
X offset of generated bitmaps, default is 0.
 | 
			
		||||
@item txt_top
 | 
			
		||||
Y offset of generated bitmaps, default is 0.
 | 
			
		||||
@item txt_chop_spaces
 | 
			
		||||
Chops leading and trailing spaces and removes empty lines from the generated
 | 
			
		||||
text. This option is useful for teletext based subtitles where empty spaces may
 | 
			
		||||
be present at the start or at the end of the lines or empty lines may be
 | 
			
		||||
present between the subtitle lines because of double-sized teletext charactes.
 | 
			
		||||
Default value is 1.
 | 
			
		||||
@item txt_duration
 | 
			
		||||
Sets the display duration of the decoded teletext pages or subtitles in
 | 
			
		||||
miliseconds. Default value is 30000 which is 30 seconds.
 | 
			
		||||
@item txt_transparent
 | 
			
		||||
Force transparent background of the generated teletext bitmaps. Default value
 | 
			
		||||
is 0 which means an opaque (black) background.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@c man end SUBTILES DECODERS
 | 
			
		||||
 
 | 
			
		||||
@@ -1,7 +1,3 @@
 | 
			
		||||
a.summary-letter {
 | 
			
		||||
    text-decoration: none;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
a {
 | 
			
		||||
    color: #2D6198;
 | 
			
		||||
}
 | 
			
		||||
@@ -17,8 +13,8 @@ a:visited {
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
#banner img {
 | 
			
		||||
    margin-bottom: 1px;
 | 
			
		||||
    margin-top: 5px;
 | 
			
		||||
    padding-bottom: 1px;
 | 
			
		||||
    padding-top: 5px;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
#body {
 | 
			
		||||
@@ -49,16 +45,11 @@ body {
 | 
			
		||||
    text-align: center;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
h1 a, h2 a, h3 a, h4 a {
 | 
			
		||||
    text-decoration: inherit;
 | 
			
		||||
    color: inherit;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
h1, h2, h3, h4 {
 | 
			
		||||
h1, h2, h3 {
 | 
			
		||||
    padding-left: 0.4em;
 | 
			
		||||
    border-radius: 4px;
 | 
			
		||||
    padding-bottom: 0.25em;
 | 
			
		||||
    padding-top: 0.25em;
 | 
			
		||||
    padding-bottom: 0.2em;
 | 
			
		||||
    padding-top: 0.2em;
 | 
			
		||||
    border: 1px solid #6A996A;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
@@ -72,22 +63,15 @@ h1 {
 | 
			
		||||
 | 
			
		||||
h2 {
 | 
			
		||||
    color: #313131;
 | 
			
		||||
    font-size: 1.0em;
 | 
			
		||||
    font-size: 0.9em;
 | 
			
		||||
    background-color: #ABE3AB;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
h3 {
 | 
			
		||||
    color: #313131;
 | 
			
		||||
    font-size: 0.9em;
 | 
			
		||||
    margin-bottom: -6px;
 | 
			
		||||
    background-color: #BBF3BB;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
h4 {
 | 
			
		||||
    color: #313131;
 | 
			
		||||
    font-size: 0.8em;
 | 
			
		||||
    margin-bottom: -8px;
 | 
			
		||||
    background-color: #D1FDD1;
 | 
			
		||||
    background-color: #BBF3BB;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
img {
 | 
			
		||||
 
 | 
			
		||||
@@ -1,7 +1,7 @@
 | 
			
		||||
@chapter Demuxers
 | 
			
		||||
@c man begin DEMUXERS
 | 
			
		||||
 | 
			
		||||
Demuxers are configured elements in FFmpeg that can read the
 | 
			
		||||
Demuxers are configured elements in FFmpeg which allow to read the
 | 
			
		||||
multimedia streams from a particular type of file.
 | 
			
		||||
 | 
			
		||||
When you configure your FFmpeg build, all the supported demuxers
 | 
			
		||||
@@ -18,12 +18,6 @@ enabled demuxers.
 | 
			
		||||
 | 
			
		||||
The description of some of the currently available demuxers follows.
 | 
			
		||||
 | 
			
		||||
@section aa
 | 
			
		||||
 | 
			
		||||
Audible Format 2, 3, and 4 demuxer.
 | 
			
		||||
 | 
			
		||||
This demuxer is used to demux Audible Format 2, 3, and 4 (.aa) files.
 | 
			
		||||
 | 
			
		||||
@section applehttp
 | 
			
		||||
 | 
			
		||||
Apple HTTP Live Streaming demuxer.
 | 
			
		||||
@@ -35,37 +29,6 @@ the caller can decide which variant streams to actually receive.
 | 
			
		||||
The total bitrate of the variant that the stream belongs to is
 | 
			
		||||
available in a metadata key named "variant_bitrate".
 | 
			
		||||
 | 
			
		||||
@section apng
 | 
			
		||||
 | 
			
		||||
Animated Portable Network Graphics demuxer.
 | 
			
		||||
 | 
			
		||||
This demuxer is used to demux APNG files.
 | 
			
		||||
All headers, but the PNG signature, up to (but not including) the first
 | 
			
		||||
fcTL chunk are transmitted as extradata.
 | 
			
		||||
Frames are then split as being all the chunks between two fcTL ones, or
 | 
			
		||||
between the last fcTL and IEND chunks.
 | 
			
		||||
 | 
			
		||||
@table @option
 | 
			
		||||
@item -ignore_loop @var{bool}
 | 
			
		||||
Ignore the loop variable in the file if set.
 | 
			
		||||
@item -max_fps @var{int}
 | 
			
		||||
Maximum framerate in frames per second (0 for no limit).
 | 
			
		||||
@item -default_fps @var{int}
 | 
			
		||||
Default framerate in frames per second when none is specified in the file
 | 
			
		||||
(0 meaning as fast as possible).
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@section asf
 | 
			
		||||
 | 
			
		||||
Advanced Systems Format demuxer.
 | 
			
		||||
 | 
			
		||||
This demuxer is used to demux ASF files and MMS network streams.
 | 
			
		||||
 | 
			
		||||
@table @option
 | 
			
		||||
@item -no_resync_search @var{bool}
 | 
			
		||||
Do not try to resynchronize by looking for a certain optional start code.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@anchor{concat}
 | 
			
		||||
@section concat
 | 
			
		||||
 | 
			
		||||
@@ -100,11 +63,11 @@ following directive is recognized:
 | 
			
		||||
Path to a file to read; special characters and spaces must be escaped with
 | 
			
		||||
backslash or single quotes.
 | 
			
		||||
 | 
			
		||||
All subsequent file-related directives apply to that file.
 | 
			
		||||
All subsequent directives apply to that file.
 | 
			
		||||
 | 
			
		||||
@item @code{ffconcat version 1.0}
 | 
			
		||||
Identify the script type and version. It also sets the @option{safe} option
 | 
			
		||||
to 1 if it was -1.
 | 
			
		||||
to 1 if it was to its default -1.
 | 
			
		||||
 | 
			
		||||
To make FFmpeg recognize the format automatically, this directive must
 | 
			
		||||
appears exactly as is (no extra space or byte-order-mark) on the very first
 | 
			
		||||
@@ -115,66 +78,6 @@ Duration of the file. This information can be specified from the file;
 | 
			
		||||
specifying it here may be more efficient or help if the information from the
 | 
			
		||||
file is not available or accurate.
 | 
			
		||||
 | 
			
		||||
If the duration is set for all files, then it is possible to seek in the
 | 
			
		||||
whole concatenated video.
 | 
			
		||||
 | 
			
		||||
@item @code{inpoint @var{timestamp}}
 | 
			
		||||
In point of the file. When the demuxer opens the file it instantly seeks to the
 | 
			
		||||
specified timestamp. Seeking is done so that all streams can be presented
 | 
			
		||||
successfully at In point.
 | 
			
		||||
 | 
			
		||||
This directive works best with intra frame codecs, because for non-intra frame
 | 
			
		||||
ones you will usually get extra packets before the actual In point and the
 | 
			
		||||
decoded content will most likely contain frames before In point too.
 | 
			
		||||
 | 
			
		||||
For each file, packets before the file In point will have timestamps less than
 | 
			
		||||
the calculated start timestamp of the file (negative in case of the first
 | 
			
		||||
file), and the duration of the files (if not specified by the @code{duration}
 | 
			
		||||
directive) will be reduced based on their specified In point.
 | 
			
		||||
 | 
			
		||||
Because of potential packets before the specified In point, packet timestamps
 | 
			
		||||
may overlap between two concatenated files.
 | 
			
		||||
 | 
			
		||||
@item @code{outpoint @var{timestamp}}
 | 
			
		||||
Out point of the file. When the demuxer reaches the specified decoding
 | 
			
		||||
timestamp in any of the streams, it handles it as an end of file condition and
 | 
			
		||||
skips the current and all the remaining packets from all streams.
 | 
			
		||||
 | 
			
		||||
Out point is exclusive, which means that the demuxer will not output packets
 | 
			
		||||
with a decoding timestamp greater or equal to Out point.
 | 
			
		||||
 | 
			
		||||
This directive works best with intra frame codecs and formats where all streams
 | 
			
		||||
are tightly interleaved. For non-intra frame codecs you will usually get
 | 
			
		||||
additional packets with presentation timestamp after Out point therefore the
 | 
			
		||||
decoded content will most likely contain frames after Out point too. If your
 | 
			
		||||
streams are not tightly interleaved you may not get all the packets from all
 | 
			
		||||
streams before Out point and you may only will be able to decode the earliest
 | 
			
		||||
stream until Out point.
 | 
			
		||||
 | 
			
		||||
The duration of the files (if not specified by the @code{duration}
 | 
			
		||||
directive) will be reduced based on their specified Out point.
 | 
			
		||||
 | 
			
		||||
@item @code{file_packet_metadata @var{key=value}}
 | 
			
		||||
Metadata of the packets of the file. The specified metadata will be set for
 | 
			
		||||
each file packet. You can specify this directive multiple times to add multiple
 | 
			
		||||
metadata entries.
 | 
			
		||||
 | 
			
		||||
@item @code{stream}
 | 
			
		||||
Introduce a stream in the virtual file.
 | 
			
		||||
All subsequent stream-related directives apply to the last introduced
 | 
			
		||||
stream.
 | 
			
		||||
Some streams properties must be set in order to allow identifying the
 | 
			
		||||
matching streams in the subfiles.
 | 
			
		||||
If no streams are defined in the script, the streams from the first file are
 | 
			
		||||
copied.
 | 
			
		||||
 | 
			
		||||
@item @code{exact_stream_id @var{id}}
 | 
			
		||||
Set the id of the stream.
 | 
			
		||||
If this directive is given, the string with the corresponding id in the
 | 
			
		||||
subfiles will be used.
 | 
			
		||||
This is especially useful for MPEG-PS (VOB) files, where the order of the
 | 
			
		||||
streams is not reliable.
 | 
			
		||||
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@subsection Options
 | 
			
		||||
@@ -192,97 +95,11 @@ component.
 | 
			
		||||
 | 
			
		||||
If set to 0, any file name is accepted.
 | 
			
		||||
 | 
			
		||||
The default is 1.
 | 
			
		||||
 | 
			
		||||
-1 is equivalent to 1 if the format was automatically
 | 
			
		||||
The default is -1, it is equivalent to 1 if the format was automatically
 | 
			
		||||
probed and 0 otherwise.
 | 
			
		||||
 | 
			
		||||
@item auto_convert
 | 
			
		||||
If set to 1, try to perform automatic conversions on packet data to make the
 | 
			
		||||
streams concatenable.
 | 
			
		||||
The default is 1.
 | 
			
		||||
 | 
			
		||||
Currently, the only conversion is adding the h264_mp4toannexb bitstream
 | 
			
		||||
filter to H.264 streams in MP4 format. This is necessary in particular if
 | 
			
		||||
there are resolution changes.
 | 
			
		||||
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@section flv
 | 
			
		||||
 | 
			
		||||
Adobe Flash Video Format demuxer.
 | 
			
		||||
 | 
			
		||||
This demuxer is used to demux FLV files and RTMP network streams.
 | 
			
		||||
 | 
			
		||||
@table @option
 | 
			
		||||
@item -flv_metadata @var{bool}
 | 
			
		||||
Allocate the streams according to the onMetaData array content.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@section libgme
 | 
			
		||||
 | 
			
		||||
The Game Music Emu library is a collection of video game music file emulators.
 | 
			
		||||
 | 
			
		||||
See @url{http://code.google.com/p/game-music-emu/} for more information.
 | 
			
		||||
 | 
			
		||||
Some files have multiple tracks. The demuxer will pick the first track by
 | 
			
		||||
default. The @option{track_index} option can be used to select a different
 | 
			
		||||
track. Track indexes start at 0. The demuxer exports the number of tracks as
 | 
			
		||||
@var{tracks} meta data entry.
 | 
			
		||||
 | 
			
		||||
For very large files, the @option{max_size} option may have to be adjusted.
 | 
			
		||||
 | 
			
		||||
@section libquvi
 | 
			
		||||
 | 
			
		||||
Play media from Internet services using the quvi project.
 | 
			
		||||
 | 
			
		||||
The demuxer accepts a @option{format} option to request a specific quality. It
 | 
			
		||||
is by default set to @var{best}.
 | 
			
		||||
 | 
			
		||||
See @url{http://quvi.sourceforge.net/} for more information.
 | 
			
		||||
 | 
			
		||||
FFmpeg needs to be built with @code{--enable-libquvi} for this demuxer to be
 | 
			
		||||
enabled.
 | 
			
		||||
 | 
			
		||||
@section gif
 | 
			
		||||
 | 
			
		||||
Animated GIF demuxer.
 | 
			
		||||
 | 
			
		||||
It accepts the following options:
 | 
			
		||||
 | 
			
		||||
@table @option
 | 
			
		||||
@item min_delay
 | 
			
		||||
Set the minimum valid delay between frames in hundredths of seconds.
 | 
			
		||||
Range is 0 to 6000. Default value is 2.
 | 
			
		||||
 | 
			
		||||
@item max_gif_delay
 | 
			
		||||
Set the maximum valid delay between frames in hundredth of seconds.
 | 
			
		||||
Range is 0 to 65535. Default value is 65535 (nearly eleven minutes),
 | 
			
		||||
the maximum value allowed by the specification.
 | 
			
		||||
 | 
			
		||||
@item default_delay
 | 
			
		||||
Set the default delay between frames in hundredths of seconds.
 | 
			
		||||
Range is 0 to 6000. Default value is 10.
 | 
			
		||||
 | 
			
		||||
@item ignore_loop
 | 
			
		||||
GIF files can contain information to loop a certain number of times (or
 | 
			
		||||
infinitely). If @option{ignore_loop} is set to 1, then the loop setting
 | 
			
		||||
from the input will be ignored and looping will not occur. If set to 0,
 | 
			
		||||
then looping will occur and will cycle the number of times according to
 | 
			
		||||
the GIF. Default value is 1.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
For example, with the overlay filter, place an infinitely looping GIF
 | 
			
		||||
over another video:
 | 
			
		||||
@example
 | 
			
		||||
ffmpeg -i input.mp4 -ignore_loop 0 -i input.gif -filter_complex overlay=shortest=1 out.mkv
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
Note that in the above example the shortest option for overlay filter is
 | 
			
		||||
used to end the output video at the length of the shortest input file,
 | 
			
		||||
which in this case is @file{input.mp4} as the GIF in this example loops
 | 
			
		||||
infinitely.
 | 
			
		||||
 | 
			
		||||
@section image2
 | 
			
		||||
 | 
			
		||||
Image file demuxer.
 | 
			
		||||
@@ -308,10 +125,6 @@ Select the pattern type used to interpret the provided filename.
 | 
			
		||||
 | 
			
		||||
@var{pattern_type} accepts one of the following values.
 | 
			
		||||
@table @option
 | 
			
		||||
@item none
 | 
			
		||||
Disable pattern matching, therefore the video will only contain the specified
 | 
			
		||||
image. You should use this option if you do not want to create sequences from
 | 
			
		||||
multiple images and your filenames may contain special pattern characters.
 | 
			
		||||
@item sequence
 | 
			
		||||
Select a sequence pattern type, used to specify a sequence of files
 | 
			
		||||
indexed by sequential numbers.
 | 
			
		||||
@@ -382,12 +195,6 @@ to read from. Default value is 0.
 | 
			
		||||
Set the index interval range to check when looking for the first image
 | 
			
		||||
file in the sequence, starting from @var{start_number}. Default value
 | 
			
		||||
is 5.
 | 
			
		||||
@item ts_from_file
 | 
			
		||||
If set to 1, will set frame timestamp to modification time of image file. Note
 | 
			
		||||
that monotonity of timestamps is not provided: images go in the same order as
 | 
			
		||||
without this option. Default value is 0.
 | 
			
		||||
If set to 2, will set frame timestamp to the modification time of the image file in
 | 
			
		||||
nanosecond precision.
 | 
			
		||||
@item video_size
 | 
			
		||||
Set the video size of the images to read. If not specified the video
 | 
			
		||||
size is guessed from the first image file in the sequence.
 | 
			
		||||
@@ -401,71 +208,28 @@ Use @command{ffmpeg} for creating a video from the images in the file
 | 
			
		||||
sequence @file{img-001.jpeg}, @file{img-002.jpeg}, ..., assuming an
 | 
			
		||||
input frame rate of 10 frames per second:
 | 
			
		||||
@example
 | 
			
		||||
ffmpeg -framerate 10 -i 'img-%03d.jpeg' out.mkv
 | 
			
		||||
ffmpeg -i 'img-%03d.jpeg' -r 10 out.mkv
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
As above, but start by reading from a file with index 100 in the sequence:
 | 
			
		||||
@example
 | 
			
		||||
ffmpeg -framerate 10 -start_number 100 -i 'img-%03d.jpeg' out.mkv
 | 
			
		||||
ffmpeg -start_number 100 -i 'img-%03d.jpeg' -r 10 out.mkv
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
Read images matching the "*.png" glob pattern , that is all the files
 | 
			
		||||
terminating with the ".png" suffix:
 | 
			
		||||
@example
 | 
			
		||||
ffmpeg -framerate 10 -pattern_type glob -i "*.png" out.mkv
 | 
			
		||||
ffmpeg -pattern_type glob -i "*.png" -r 10 out.mkv
 | 
			
		||||
@end example
 | 
			
		||||
@end itemize
 | 
			
		||||
 | 
			
		||||
@section mov/mp4/3gp/Quicktme
 | 
			
		||||
 | 
			
		||||
Quicktime / MP4 demuxer.
 | 
			
		||||
 | 
			
		||||
This demuxer accepts the following options:
 | 
			
		||||
@table @option
 | 
			
		||||
@item enable_drefs
 | 
			
		||||
Enable loading of external tracks, disabled by default.
 | 
			
		||||
Enabling this can theoretically leak information in some use cases.
 | 
			
		||||
 | 
			
		||||
@item use_absolute_path
 | 
			
		||||
Allows loading of external tracks via absolute paths, disabled by default.
 | 
			
		||||
Enabling this poses a security risk. It should only be enabled if the source
 | 
			
		||||
is known to be non malicious.
 | 
			
		||||
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@section mpegts
 | 
			
		||||
 | 
			
		||||
MPEG-2 transport stream demuxer.
 | 
			
		||||
 | 
			
		||||
This demuxer accepts the following options:
 | 
			
		||||
@table @option
 | 
			
		||||
@item resync_size
 | 
			
		||||
Set size limit for looking up a new synchronization. Default value is
 | 
			
		||||
65536.
 | 
			
		||||
 | 
			
		||||
@item fix_teletext_pts
 | 
			
		||||
Override teletext packet PTS and DTS values with the timestamps calculated
 | 
			
		||||
from the PCR of the first program which the teletext stream is part of and is
 | 
			
		||||
not discarded. Default value is 1, set this option to 0 if you want your
 | 
			
		||||
teletext packet PTS and DTS values untouched.
 | 
			
		||||
 | 
			
		||||
@item ts_packetsize
 | 
			
		||||
Output option carrying the raw packet size in bytes.
 | 
			
		||||
Show the detected raw packet size, cannot be set by the user.
 | 
			
		||||
 | 
			
		||||
@item scan_all_pmts
 | 
			
		||||
Scan and combine all PMTs. The value is an integer with value from -1
 | 
			
		||||
to 1 (-1 means automatic setting, 1 means enabled, 0 means
 | 
			
		||||
disabled). Default value is -1.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@section rawvideo
 | 
			
		||||
 | 
			
		||||
Raw video demuxer.
 | 
			
		||||
 | 
			
		||||
This demuxer allows one to read raw video data. Since there is no header
 | 
			
		||||
This demuxer allows to read raw video data. Since there is no header
 | 
			
		||||
specifying the assumed video parameters, the user must specify them
 | 
			
		||||
in order to be able to decode the data correctly.
 | 
			
		||||
 | 
			
		||||
 
 | 
			
		||||
@@ -1,5 +1,4 @@
 | 
			
		||||
\input texinfo @c -*- texinfo -*-
 | 
			
		||||
@documentencoding UTF-8
 | 
			
		||||
 | 
			
		||||
@settitle Developer Documentation
 | 
			
		||||
@titlepage
 | 
			
		||||
@@ -12,23 +11,29 @@
 | 
			
		||||
 | 
			
		||||
@chapter Developers Guide
 | 
			
		||||
 | 
			
		||||
@section Notes for external developers
 | 
			
		||||
@section API
 | 
			
		||||
@itemize @bullet
 | 
			
		||||
@item libavcodec is the library containing the codecs (both encoding and
 | 
			
		||||
decoding). Look at @file{doc/examples/decoding_encoding.c} to see how to use
 | 
			
		||||
it.
 | 
			
		||||
 | 
			
		||||
This document is mostly useful for internal FFmpeg developers.
 | 
			
		||||
External developers who need to use the API in their application should
 | 
			
		||||
refer to the API doxygen documentation in the public headers, and
 | 
			
		||||
check the examples in @file{doc/examples} and in the source code to
 | 
			
		||||
see how the public API is employed.
 | 
			
		||||
@item libavformat is the library containing the file format handling (mux and
 | 
			
		||||
demux code for several formats). Look at @file{ffplay.c} to use it in a
 | 
			
		||||
player. See @file{doc/examples/muxing.c} to use it to generate audio or video
 | 
			
		||||
streams.
 | 
			
		||||
 | 
			
		||||
You can use the FFmpeg libraries in your commercial program, but you
 | 
			
		||||
are encouraged to @emph{publish any patch you make}. In this case the
 | 
			
		||||
best way to proceed is to send your patches to the ffmpeg-devel
 | 
			
		||||
mailing list following the guidelines illustrated in the remainder of
 | 
			
		||||
this document.
 | 
			
		||||
@end itemize
 | 
			
		||||
 | 
			
		||||
For more detailed legal information about the use of FFmpeg in
 | 
			
		||||
external programs read the @file{LICENSE} file in the source tree and
 | 
			
		||||
consult @url{http://ffmpeg.org/legal.html}.
 | 
			
		||||
@section Integrating libavcodec or libavformat in your program
 | 
			
		||||
 | 
			
		||||
You can integrate all the source code of the libraries to link them
 | 
			
		||||
statically to avoid any version problem. All you need is to provide a
 | 
			
		||||
'config.mak' and a 'config.h' in the parent directory. See the defines
 | 
			
		||||
generated by ./configure to understand what is needed.
 | 
			
		||||
 | 
			
		||||
You can use libavcodec or libavformat in your commercial program, but
 | 
			
		||||
@emph{any patch you make must be published}. The best way to proceed is
 | 
			
		||||
to send your patches to the FFmpeg mailing list.
 | 
			
		||||
 | 
			
		||||
@section Contributing
 | 
			
		||||
 | 
			
		||||
@@ -52,16 +57,13 @@ and should try to fix issues their commit causes.
 | 
			
		||||
@subsection Code formatting conventions
 | 
			
		||||
 | 
			
		||||
There are the following guidelines regarding the indentation in files:
 | 
			
		||||
 | 
			
		||||
@itemize @bullet
 | 
			
		||||
@item
 | 
			
		||||
Indent size is 4.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
The TAB character is forbidden outside of Makefiles as is any
 | 
			
		||||
form of trailing whitespace. Commits containing either will be
 | 
			
		||||
rejected by the git repository.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
You should try to limit your code lines to 80 characters; however, do so if
 | 
			
		||||
and only if this improves readability.
 | 
			
		||||
@@ -115,17 +117,13 @@ int myfunc(int my_parameter)
 | 
			
		||||
 | 
			
		||||
FFmpeg is programmed in the ISO C90 language with a few additional
 | 
			
		||||
features from ISO C99, namely:
 | 
			
		||||
 | 
			
		||||
@itemize @bullet
 | 
			
		||||
@item
 | 
			
		||||
the @samp{inline} keyword;
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
@samp{//} comments;
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
designated struct initializers (@samp{struct s x = @{ .i = 17 @};})
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
compound literals (@samp{x = (struct s) @{ 17, 23 @};})
 | 
			
		||||
@end itemize
 | 
			
		||||
@@ -137,17 +135,13 @@ clarity and performance.
 | 
			
		||||
All code must compile with recent versions of GCC and a number of other
 | 
			
		||||
currently supported compilers. To ensure compatibility, please do not use
 | 
			
		||||
additional C99 features or GCC extensions. Especially watch out for:
 | 
			
		||||
 | 
			
		||||
@itemize @bullet
 | 
			
		||||
@item
 | 
			
		||||
mixing statements and declarations;
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
@samp{long long} (use @samp{int64_t} instead);
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
@samp{__attribute__} not protected by @samp{#ifdef __GNUC__} or similar;
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
GCC statement expressions (@samp{(x = (@{ int y = 4; y; @})}).
 | 
			
		||||
@end itemize
 | 
			
		||||
@@ -159,25 +153,17 @@ All names should be composed with underscores (_), not CamelCase. For example,
 | 
			
		||||
for example structs and enums; they should always be in the CamelCase
 | 
			
		||||
 | 
			
		||||
There are the following conventions for naming variables and functions:
 | 
			
		||||
 | 
			
		||||
@itemize @bullet
 | 
			
		||||
@item
 | 
			
		||||
For local variables no prefix is required.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
For file-scope variables and functions declared as @code{static}, no prefix
 | 
			
		||||
is required.
 | 
			
		||||
 | 
			
		||||
For variables and functions declared as @code{static} no prefix is required.
 | 
			
		||||
@item
 | 
			
		||||
For variables and functions visible outside of file scope, but only used
 | 
			
		||||
internally by a library, an @code{ff_} prefix should be used,
 | 
			
		||||
e.g. @samp{ff_w64_demuxer}.
 | 
			
		||||
 | 
			
		||||
For variables and functions used internally by a library an @code{ff_}
 | 
			
		||||
prefix should be used, e.g. @samp{ff_w64_demuxer}.
 | 
			
		||||
@item
 | 
			
		||||
For variables and functions visible outside of file scope, used internally
 | 
			
		||||
across multiple libraries, use @code{avpriv_} as prefix, for example,
 | 
			
		||||
@samp{avpriv_aac_parse_header}.
 | 
			
		||||
 | 
			
		||||
For variables and functions used internally across multiple libraries, use
 | 
			
		||||
@code{avpriv_}. For example, @samp{avpriv_aac_parse_header}.
 | 
			
		||||
@item
 | 
			
		||||
Each library has its own prefix for public symbols, in addition to the
 | 
			
		||||
commonly used @code{av_} (@code{avformat_} for libavformat,
 | 
			
		||||
@@ -197,12 +183,10 @@ are reserved at the file level and may not be used for externally visible
 | 
			
		||||
symbols. If in doubt, just avoid names starting with @code{_} altogether.
 | 
			
		||||
 | 
			
		||||
@subsection Miscellaneous conventions
 | 
			
		||||
 | 
			
		||||
@itemize @bullet
 | 
			
		||||
@item
 | 
			
		||||
fprintf and printf are forbidden in libavformat and libavcodec,
 | 
			
		||||
please use av_log() instead.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
Casts should be used only when necessary. Unneeded parentheses
 | 
			
		||||
should also be avoided if they don't make the code easier to understand.
 | 
			
		||||
@@ -228,7 +212,7 @@ autocmd InsertEnter * match ForbiddenWhitespace /\t\|\s\+\%#\@@<!$/
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
For Emacs, add these roughly equivalent lines to your @file{.emacs.d/init.el}:
 | 
			
		||||
@lisp
 | 
			
		||||
@example
 | 
			
		||||
(c-add-style "ffmpeg"
 | 
			
		||||
             '("k&r"
 | 
			
		||||
               (c-basic-offset . 4)
 | 
			
		||||
@@ -239,7 +223,7 @@ For Emacs, add these roughly equivalent lines to your @file{.emacs.d/init.el}:
 | 
			
		||||
               )
 | 
			
		||||
             )
 | 
			
		||||
(setq c-default-style "ffmpeg")
 | 
			
		||||
@end lisp
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@section Development Policy
 | 
			
		||||
 | 
			
		||||
@@ -249,14 +233,11 @@ Contributions should be licensed under the
 | 
			
		||||
   @uref{http://www.gnu.org/licenses/lgpl-2.1.html, LGPL 2.1},
 | 
			
		||||
   including an "or any later version" clause, or, if you prefer
 | 
			
		||||
   a gift-style license, the
 | 
			
		||||
@uref{http://opensource.org/licenses/isc-license.txt, ISC} or
 | 
			
		||||
   @uref{http://www.isc.org/software/license/, ISC} or
 | 
			
		||||
   @uref{http://mit-license.org/, MIT} license.
 | 
			
		||||
   @uref{http://www.gnu.org/licenses/gpl-2.0.html, GPL 2} including
 | 
			
		||||
   an "or any later version" clause is also acceptable, but LGPL is
 | 
			
		||||
   preferred.
 | 
			
		||||
If you add a new file, give it a proper license header. Do not copy and
 | 
			
		||||
paste it from a random place, use an existing file as template.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
   You must not commit code which breaks FFmpeg! (Meaning unfinished but
 | 
			
		||||
   enabled code which breaks compilation or compiles but does not work or
 | 
			
		||||
@@ -264,7 +245,6 @@ breaks the regression tests)
 | 
			
		||||
   You can commit unfinished stuff (for testing etc), but it must be disabled
 | 
			
		||||
   (#ifdef etc) by default so it does not interfere with other developers'
 | 
			
		||||
   work.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
   The commit message should have a short first line in the form of
 | 
			
		||||
   a @samp{topic: short description} as a header, separated by a newline
 | 
			
		||||
@@ -272,13 +252,11 @@ from the body consisting of an explanation of why the change is necessary.
 | 
			
		||||
   If the commit fixes a known bug on the bug tracker, the commit message
 | 
			
		||||
   should include its bug ID. Referring to the issue on the bug tracker does
 | 
			
		||||
   not exempt you from writing an excerpt of the bug in the commit message.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
   You do not have to over-test things. If it works for you, and you think it
 | 
			
		||||
   should work for others, then commit. If your code has problems
 | 
			
		||||
   (portability, triggers compiler bugs, unusual environment etc) they will be
 | 
			
		||||
   reported and eventually fixed.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
   Do not commit unrelated changes together, split them into self-contained
 | 
			
		||||
   pieces. Also do not forget that if part B depends on part A, but A does not
 | 
			
		||||
@@ -288,14 +266,12 @@ understanding them on the commit log mailing list easier. This also helps
 | 
			
		||||
   in case of debugging later on.
 | 
			
		||||
   Also if you have doubts about splitting or not splitting, do not hesitate to
 | 
			
		||||
   ask/discuss it on the developer mailing list.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
   Do not change behavior of the programs (renaming options etc) or public
 | 
			
		||||
   API or ABI without first discussing it on the ffmpeg-devel mailing list.
 | 
			
		||||
   Do not remove functionality from the code. Just improve!
 | 
			
		||||
 | 
			
		||||
   Note: Redundant code can be removed.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
   Do not commit changes to the build system (Makefiles, configure script)
 | 
			
		||||
   which change behavior, defaults etc, without asking first. The same
 | 
			
		||||
@@ -304,7 +280,6 @@ maintained by other developers. We usually have a reason for doing things
 | 
			
		||||
   the way we do. Send your changes as patches to the ffmpeg-devel mailing
 | 
			
		||||
   list, and if the code maintainers say OK, you may commit. This does not
 | 
			
		||||
   apply to files you wrote and/or maintain.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
   We refuse source indentation and other cosmetic changes if they are mixed
 | 
			
		||||
   with functional changes, such commits will be rejected and removed. Every
 | 
			
		||||
@@ -318,56 +293,44 @@ changes.
 | 
			
		||||
   NOTE: If you had to put if()@{ .. @} over a large (> 5 lines) chunk of code,
 | 
			
		||||
   then either do NOT change the indentation of the inner part within (do not
 | 
			
		||||
   move it to the right)! or do so in a separate commit
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
   Always fill out the commit log message. Describe in a few lines what you
 | 
			
		||||
   changed and why. You can refer to mailing list postings if you fix a
 | 
			
		||||
   particular bug. Comments such as "fixed!" or "Changed it." are unacceptable.
 | 
			
		||||
   Recommended format:
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
   area changed: Short 1 line description
 | 
			
		||||
 | 
			
		||||
   details describing what and why and giving references.
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
   Make sure the author of the commit is set correctly. (see git commit --author)
 | 
			
		||||
   If you apply a patch, send an
 | 
			
		||||
   answer to ffmpeg-devel (or wherever you got the patch from) saying that
 | 
			
		||||
   you applied the patch.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
   When applying patches that have been discussed (at length) on the mailing
 | 
			
		||||
   list, reference the thread in the log message.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Do NOT commit to code actively maintained by others without permission.
 | 
			
		||||
    Send a patch to ffmpeg-devel instead. If no one answers within a reasonable
 | 
			
		||||
    timeframe (12h for build failures and security fixes, 3 days small changes,
 | 
			
		||||
    1 week for big patches) then commit your patch if you think it is OK.
 | 
			
		||||
    Also note, the maintainer can simply ask for more time to review!
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Subscribe to the ffmpeg-cvslog mailing list. The diffs of all commits
 | 
			
		||||
    are sent there and reviewed by all the other developers. Bugs and possible
 | 
			
		||||
    improvements or general questions regarding commits are discussed there. We
 | 
			
		||||
    expect you to react if problems with your code are uncovered.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Update the documentation if you change behavior or add features. If you are
 | 
			
		||||
    unsure how best to do this, send a patch to ffmpeg-devel, the documentation
 | 
			
		||||
    maintainer(s) will review and commit your stuff.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Try to keep important discussions and requests (also) on the public
 | 
			
		||||
    developer mailing list, so that all developers can benefit from them.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Never write to unallocated memory, never write over the end of arrays,
 | 
			
		||||
    always check values read from some untrusted source before using them
 | 
			
		||||
    as array index or other risky things.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Remember to check if you need to bump versions for the specific libav*
 | 
			
		||||
    parts (libavutil, libavcodec, libavformat) you are changing. You need
 | 
			
		||||
@@ -380,7 +343,6 @@ existing data structure).
 | 
			
		||||
    Incrementing the third component means a noteworthy binary compatible
 | 
			
		||||
    change (e.g. encoder bug fix that matters for the decoder). The third
 | 
			
		||||
    component always starts at 100 to distinguish FFmpeg from Libav.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Compiler warnings indicate potential bugs or code with bad style. If a type of
 | 
			
		||||
    warning always points to correct and clean code, that warning should
 | 
			
		||||
@@ -389,13 +351,9 @@ Thus the remaining warnings can either be bugs or correct code.
 | 
			
		||||
    If it is a bug, the bug has to be fixed. If it is not, the code should
 | 
			
		||||
    be changed to not generate a warning unless that causes a slowdown
 | 
			
		||||
    or obfuscates the code.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
Make sure that no parts of the codebase that you maintain are missing from the
 | 
			
		||||
@file{MAINTAINERS} file. If something that you want to maintain is missing add it with
 | 
			
		||||
your name after it.
 | 
			
		||||
If at some point you no longer want to maintain some code, then please help
 | 
			
		||||
finding a new maintainer and also don't forget updating the @file{MAINTAINERS} file.
 | 
			
		||||
    If you add a new file, give it a proper license header. Do not copy and
 | 
			
		||||
    paste it from a random place, use an existing file as template.
 | 
			
		||||
@end enumerate
 | 
			
		||||
 | 
			
		||||
We think our rules are not too hard. If you have comments, contact us.
 | 
			
		||||
@@ -451,46 +409,35 @@ send a reminder by email. Your patch should eventually be dealt with.
 | 
			
		||||
@enumerate
 | 
			
		||||
@item
 | 
			
		||||
    Did you use av_cold for codec initialization and close functions?
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Did you add a long_name under NULL_IF_CONFIG_SMALL to the AVCodec or
 | 
			
		||||
    AVInputFormat/AVOutputFormat struct?
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Did you bump the minor version number (and reset the micro version
 | 
			
		||||
    number) in @file{libavcodec/version.h} or @file{libavformat/version.h}?
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Did you register it in @file{allcodecs.c} or @file{allformats.c}?
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Did you add the AVCodecID to @file{avcodec.h}?
 | 
			
		||||
    When adding new codec IDs, also add an entry to the codec descriptor
 | 
			
		||||
    list in @file{libavcodec/codec_desc.c}.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    If it has a FourCC, did you add it to @file{libavformat/riff.c},
 | 
			
		||||
    even if it is only a decoder?
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Did you add a rule to compile the appropriate files in the Makefile?
 | 
			
		||||
    Remember to do this even if you're just adding a format to a file that is
 | 
			
		||||
    already being compiled by some other rule, like a raw demuxer.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Did you add an entry to the table of supported formats or codecs in
 | 
			
		||||
    @file{doc/general.texi}?
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Did you add an entry in the Changelog?
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    If it depends on a parser or a library, did you add that dependency in
 | 
			
		||||
    configure?
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Did you @code{git add} the appropriate files before committing?
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Did you make sure it compiles standalone, i.e. with
 | 
			
		||||
    @code{configure --disable-everything --enable-decoder=foo}
 | 
			
		||||
@@ -503,109 +450,78 @@ Did you make sure it compiles standalone, i.e. with
 | 
			
		||||
@enumerate
 | 
			
		||||
@item
 | 
			
		||||
    Does @code{make fate} pass with the patch applied?
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Was the patch generated with git format-patch or send-email?
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Did you sign off your patch? (git commit -s)
 | 
			
		||||
    See @url{http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=blob_plain;f=Documentation/SubmittingPatches} for the meaning
 | 
			
		||||
    of sign off.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Did you provide a clear git commit log message?
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Is the patch against latest FFmpeg git master branch?
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Are you subscribed to ffmpeg-devel?
 | 
			
		||||
    (the list is subscribers only due to spam)
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Have you checked that the changes are minimal, so that the same cannot be
 | 
			
		||||
    achieved with a smaller patch and/or simpler final code?
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    If the change is to speed critical code, did you benchmark it?
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    If you did any benchmarks, did you provide them in the mail?
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Have you checked that the patch does not introduce buffer overflows or
 | 
			
		||||
    other security issues?
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Did you test your decoder or demuxer against damaged data? If no, see
 | 
			
		||||
    tools/trasher, the noise bitstream filter, and
 | 
			
		||||
    @uref{http://caca.zoy.org/wiki/zzuf, zzuf}. Your decoder or demuxer
 | 
			
		||||
    should not crash, end in a (near) infinite loop, or allocate ridiculous
 | 
			
		||||
    amounts of memory when fed damaged data.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
Did you test your decoder or demuxer against sample files?
 | 
			
		||||
Samples may be obtained at @url{http://samples.ffmpeg.org}.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Does the patch not mix functional and cosmetic changes?
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Did you add tabs or trailing whitespace to the code? Both are forbidden.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Is the patch attached to the email you send?
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Is the mime type of the patch correct? It should be text/x-diff or
 | 
			
		||||
    text/x-patch or at least text/plain and not application/octet-stream.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    If the patch fixes a bug, did you provide a verbose analysis of the bug?
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    If the patch fixes a bug, did you provide enough information, including
 | 
			
		||||
    a sample, so the bug can be reproduced and the fix can be verified?
 | 
			
		||||
    Note please do not attach samples >100k to mails but rather provide a
 | 
			
		||||
    URL, you can upload to ftp://upload.ffmpeg.org
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Did you provide a verbose summary about what the patch does change?
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Did you provide a verbose explanation why it changes things like it does?
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Did you provide a verbose summary of the user visible advantages and
 | 
			
		||||
    disadvantages if the patch is applied?
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Did you provide an example so we can verify the new feature added by the
 | 
			
		||||
    patch easily?
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    If you added a new file, did you insert a license header? It should be
 | 
			
		||||
    taken from FFmpeg, not randomly copied and pasted from somewhere else.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    You should maintain alphabetical order in alphabetically ordered lists as
 | 
			
		||||
    long as doing so does not break API/ABI compatibility.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Lines with similar content should be aligned vertically when doing so
 | 
			
		||||
    improves readability.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Consider to add a regression test for your code.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    If you added YASM code please check that things still work with --disable-yasm
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Make sure you check the return values of function and return appropriate
 | 
			
		||||
    error codes. Especially memory allocation functions like @code{av_malloc()}
 | 
			
		||||
    are notoriously left unchecked, which is a serious problem.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Test your code with valgrind and or Address Sanitizer to ensure it's free
 | 
			
		||||
    of leaks, out of array accesses, etc.
 | 
			
		||||
@@ -637,10 +553,6 @@ not related to the comments received during review. Such patches will
 | 
			
		||||
be rejected. Instead, submit significant changes or new features as
 | 
			
		||||
separate patches.
 | 
			
		||||
 | 
			
		||||
Everyone is welcome to review patches. Also if you are waiting for your patch
 | 
			
		||||
to be reviewed, please consider helping to review other patches, that is a great
 | 
			
		||||
way to get everyone's patches reviewed sooner.
 | 
			
		||||
 | 
			
		||||
@anchor{Regression tests}
 | 
			
		||||
@section Regression tests
 | 
			
		||||
 | 
			
		||||
@@ -656,154 +568,13 @@ accordingly].
 | 
			
		||||
@subsection Adding files to the fate-suite dataset
 | 
			
		||||
 | 
			
		||||
When there is no muxer or encoder available to generate test media for a
 | 
			
		||||
specific test then the media has to be included in the fate-suite.
 | 
			
		||||
specific test then the media has to be inlcuded in the fate-suite.
 | 
			
		||||
First please make sure that the sample file is as small as possible to test the
 | 
			
		||||
respective decoder or demuxer sufficiently. Large files increase network
 | 
			
		||||
bandwidth and disk space requirements.
 | 
			
		||||
Once you have a working fate test and fate sample, provide in the commit
 | 
			
		||||
message or introductory message for the patch series that you post to
 | 
			
		||||
message or introductionary message for the patch series that you post to
 | 
			
		||||
the ffmpeg-devel mailing list, a direct link to download the sample media.
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
@subsection Visualizing Test Coverage
 | 
			
		||||
 | 
			
		||||
The FFmpeg build system allows visualizing the test coverage in an easy
 | 
			
		||||
manner with the coverage tools @code{gcov}/@code{lcov}.  This involves
 | 
			
		||||
the following steps:
 | 
			
		||||
 | 
			
		||||
@enumerate
 | 
			
		||||
@item
 | 
			
		||||
    Configure to compile with instrumentation enabled:
 | 
			
		||||
    @code{configure --toolchain=gcov}.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Run your test case, either manually or via FATE. This can be either
 | 
			
		||||
    the full FATE regression suite, or any arbitrary invocation of any
 | 
			
		||||
    front-end tool provided by FFmpeg, in any combination.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    Run @code{make lcov} to generate coverage data in HTML format.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
    View @code{lcov/index.html} in your preferred HTML viewer.
 | 
			
		||||
@end enumerate
 | 
			
		||||
 | 
			
		||||
You can use the command @code{make lcov-reset} to reset the coverage
 | 
			
		||||
measurements. You will need to rerun @code{make lcov} after running a
 | 
			
		||||
new test.
 | 
			
		||||
 | 
			
		||||
@subsection Using Valgrind
 | 
			
		||||
 | 
			
		||||
The configure script provides a shortcut for using valgrind to spot bugs
 | 
			
		||||
related to memory handling. Just add the option
 | 
			
		||||
@code{--toolchain=valgrind-memcheck} or @code{--toolchain=valgrind-massif}
 | 
			
		||||
to your configure line, and reasonable defaults will be set for running
 | 
			
		||||
FATE under the supervision of either the @strong{memcheck} or the
 | 
			
		||||
@strong{massif} tool of the valgrind suite.
 | 
			
		||||
 | 
			
		||||
In case you need finer control over how valgrind is invoked, use the
 | 
			
		||||
@code{--target-exec='valgrind <your_custom_valgrind_options>} option in
 | 
			
		||||
your configure line instead.
 | 
			
		||||
 | 
			
		||||
@anchor{Release process}
 | 
			
		||||
@section Release process
 | 
			
		||||
 | 
			
		||||
FFmpeg maintains a set of @strong{release branches}, which are the
 | 
			
		||||
recommended deliverable for system integrators and distributors (such as
 | 
			
		||||
Linux distributions, etc.). At regular times, a @strong{release
 | 
			
		||||
manager} prepares, tests and publishes tarballs on the
 | 
			
		||||
@url{http://ffmpeg.org} website.
 | 
			
		||||
 | 
			
		||||
There are two kinds of releases:
 | 
			
		||||
 | 
			
		||||
@enumerate
 | 
			
		||||
@item
 | 
			
		||||
@strong{Major releases} always include the latest and greatest
 | 
			
		||||
features and functionality.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
@strong{Point releases} are cut from @strong{release} branches,
 | 
			
		||||
which are named @code{release/X}, with @code{X} being the release
 | 
			
		||||
version number.
 | 
			
		||||
@end enumerate
 | 
			
		||||
 | 
			
		||||
Note that we promise to our users that shared libraries from any FFmpeg
 | 
			
		||||
release never break programs that have been @strong{compiled} against
 | 
			
		||||
previous versions of @strong{the same release series} in any case!
 | 
			
		||||
 | 
			
		||||
However, from time to time, we do make API changes that require adaptations
 | 
			
		||||
in applications. Such changes are only allowed in (new) major releases and
 | 
			
		||||
require further steps such as bumping library version numbers and/or
 | 
			
		||||
adjustments to the symbol versioning file. Please discuss such changes
 | 
			
		||||
on the @strong{ffmpeg-devel} mailing list in time to allow forward planning.
 | 
			
		||||
 | 
			
		||||
@anchor{Criteria for Point Releases}
 | 
			
		||||
@subsection Criteria for Point Releases
 | 
			
		||||
 | 
			
		||||
Changes that match the following criteria are valid candidates for
 | 
			
		||||
inclusion into a point release:
 | 
			
		||||
 | 
			
		||||
@enumerate
 | 
			
		||||
@item
 | 
			
		||||
Fixes a security issue, preferably identified by a @strong{CVE
 | 
			
		||||
number} issued by @url{http://cve.mitre.org/}.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
Fixes a documented bug in @url{https://trac.ffmpeg.org}.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
Improves the included documentation.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
Retains both source code and binary compatibility with previous
 | 
			
		||||
point releases of the same release branch.
 | 
			
		||||
@end enumerate
 | 
			
		||||
 | 
			
		||||
The order for checking the rules is (1 OR 2 OR 3) AND 4.
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
@subsection Release Checklist
 | 
			
		||||
 | 
			
		||||
The release process involves the following steps:
 | 
			
		||||
 | 
			
		||||
@enumerate
 | 
			
		||||
@item
 | 
			
		||||
Ensure that the @file{RELEASE} file contains the version number for
 | 
			
		||||
the upcoming release.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
Add the release at @url{https://trac.ffmpeg.org/admin/ticket/versions}.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
Announce the intent to do a release to the mailing list.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
Make sure all relevant security fixes have been backported. See
 | 
			
		||||
@url{https://ffmpeg.org/security.html}.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
Ensure that the FATE regression suite still passes in the release
 | 
			
		||||
branch on at least @strong{i386} and @strong{amd64}
 | 
			
		||||
(cf. @ref{Regression tests}).
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
Prepare the release tarballs in @code{bz2} and @code{gz} formats, and
 | 
			
		||||
supplementing files that contain @code{gpg} signatures
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
Publish the tarballs at @url{http://ffmpeg.org/releases}. Create and
 | 
			
		||||
push an annotated tag in the form @code{nX}, with @code{X}
 | 
			
		||||
containing the version number.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
Propose and send a patch to the @strong{ffmpeg-devel} mailing list
 | 
			
		||||
with a news entry for the website.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
Publish the news entry.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
Send announcement to the mailing list.
 | 
			
		||||
@end enumerate
 | 
			
		||||
 | 
			
		||||
@bye
 | 
			
		||||
 
 | 
			
		||||
@@ -1,25 +0,0 @@
 | 
			
		||||
@chapter Device Options
 | 
			
		||||
@c man begin DEVICE OPTIONS
 | 
			
		||||
 | 
			
		||||
The libavdevice library provides the same interface as
 | 
			
		||||
libavformat. Namely, an input device is considered like a demuxer, and
 | 
			
		||||
an output device like a muxer, and the interface and generic device
 | 
			
		||||
options are the same provided by libavformat (see the ffmpeg-formats
 | 
			
		||||
manual).
 | 
			
		||||
 | 
			
		||||
In addition each input or output device may support so-called private
 | 
			
		||||
options, which are specific for that component.
 | 
			
		||||
 | 
			
		||||
Options may be set by specifying -@var{option} @var{value} in the
 | 
			
		||||
FFmpeg tools, or by setting the value explicitly in the device
 | 
			
		||||
@code{AVFormatContext} options or using the @file{libavutil/opt.h} API
 | 
			
		||||
for programmatic use.
 | 
			
		||||
 | 
			
		||||
@c man end DEVICE OPTIONS
 | 
			
		||||
 | 
			
		||||
@ifclear config-writeonly
 | 
			
		||||
@include indevs.texi
 | 
			
		||||
@end ifclear
 | 
			
		||||
@ifclear config-readonly
 | 
			
		||||
@include outdevs.texi
 | 
			
		||||
@end ifclear
 | 
			
		||||
@@ -2,20 +2,13 @@
 | 
			
		||||
 | 
			
		||||
SRC_PATH="${1}"
 | 
			
		||||
DOXYFILE="${2}"
 | 
			
		||||
DOXYGEN="${3}"
 | 
			
		||||
 | 
			
		||||
shift 3
 | 
			
		||||
shift 2
 | 
			
		||||
 | 
			
		||||
if [ -e "$SRC_PATH/VERSION" ]; then
 | 
			
		||||
    VERSION=`cat "$SRC_PATH/VERSION"`
 | 
			
		||||
else
 | 
			
		||||
    VERSION=`cd "$SRC_PATH"; git describe`
 | 
			
		||||
fi
 | 
			
		||||
 | 
			
		||||
$DOXYGEN - <<EOF
 | 
			
		||||
doxygen - <<EOF
 | 
			
		||||
@INCLUDE        = ${DOXYFILE}
 | 
			
		||||
INPUT           = $@
 | 
			
		||||
EXAMPLE_PATH    = ${SRC_PATH}/doc/examples
 | 
			
		||||
HTML_TIMESTAMP  = NO
 | 
			
		||||
PROJECT_NUMBER  = $VERSION
 | 
			
		||||
HTML_HEADER     = ${SRC_PATH}/doc/doxy/header.html
 | 
			
		||||
HTML_FOOTER     = ${SRC_PATH}/doc/doxy/footer.html
 | 
			
		||||
HTML_STYLESHEET = ${SRC_PATH}/doc/doxy/doxy_stylesheet.css
 | 
			
		||||
EOF
 | 
			
		||||
 
 | 
			
		||||
							
								
								
									
										2019
									
								
								doc/doxy/doxy_stylesheet.css
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										2019
									
								
								doc/doxy/doxy_stylesheet.css
									
									
									
									
									
										Normal file
									
								
							
										
											
												File diff suppressed because it is too large
												Load Diff
											
										
									
								
							
							
								
								
									
										9
									
								
								doc/doxy/footer.html
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										9
									
								
								doc/doxy/footer.html
									
									
									
									
									
										Normal file
									
								
							@@ -0,0 +1,9 @@
 | 
			
		||||
 | 
			
		||||
 <footer class="footer pagination-right">
 | 
			
		||||
   <span class="label label-info">
 | 
			
		||||
    Generated on $datetime for $projectname by <a href="http://www.doxygen.org/index.html">doxygen</a> $doxygenversion
 | 
			
		||||
   </span>
 | 
			
		||||
 </footer>
 | 
			
		||||
</div>
 | 
			
		||||
</body>
 | 
			
		||||
</html>
 | 
			
		||||
							
								
								
									
										16
									
								
								doc/doxy/header.html
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										16
									
								
								doc/doxy/header.html
									
									
									
									
									
										Normal file
									
								
							@@ -0,0 +1,16 @@
 | 
			
		||||
<!DOCTYPE html>
 | 
			
		||||
<html>
 | 
			
		||||
<head>
 | 
			
		||||
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
 | 
			
		||||
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
 | 
			
		||||
<!--BEGIN PROJECT_NAME--><title>$projectname: $title</title><!--END PROJECT_NAME-->
 | 
			
		||||
<!--BEGIN !PROJECT_NAME--><title>$title</title><!--END !PROJECT_NAME-->
 | 
			
		||||
<link href="$relpath$doxy_stylesheet.css" rel="stylesheet" type="text/css" />
 | 
			
		||||
<!--Header replace -->
 | 
			
		||||
 | 
			
		||||
</head>
 | 
			
		||||
 | 
			
		||||
<div class="container">
 | 
			
		||||
 | 
			
		||||
<!--Header replace -->
 | 
			
		||||
<div class="menu">
 | 
			
		||||
							
								
								
									
										2073
									
								
								doc/encoders.texi
									
									
									
									
									
								
							
							
						
						
									
										2073
									
								
								doc/encoders.texi
									
									
									
									
									
								
							
										
											
												File diff suppressed because it is too large
												Load Diff
											
										
									
								
							
							
								
								
									
										288
									
								
								doc/eval.texi
									
									
									
									
									
										Normal file
									
								
							
							
						
						
									
										288
									
								
								doc/eval.texi
									
									
									
									
									
										Normal file
									
								
							@@ -0,0 +1,288 @@
 | 
			
		||||
@chapter Expression Evaluation
 | 
			
		||||
@c man begin EXPRESSION EVALUATION
 | 
			
		||||
 | 
			
		||||
When evaluating an arithmetic expression, FFmpeg uses an internal
 | 
			
		||||
formula evaluator, implemented through the @file{libavutil/eval.h}
 | 
			
		||||
interface.
 | 
			
		||||
 | 
			
		||||
An expression may contain unary, binary operators, constants, and
 | 
			
		||||
functions.
 | 
			
		||||
 | 
			
		||||
Two expressions @var{expr1} and @var{expr2} can be combined to form
 | 
			
		||||
another expression "@var{expr1};@var{expr2}".
 | 
			
		||||
@var{expr1} and @var{expr2} are evaluated in turn, and the new
 | 
			
		||||
expression evaluates to the value of @var{expr2}.
 | 
			
		||||
 | 
			
		||||
The following binary operators are available: @code{+}, @code{-},
 | 
			
		||||
@code{*}, @code{/}, @code{^}.
 | 
			
		||||
 | 
			
		||||
The following unary operators are available: @code{+}, @code{-}.
 | 
			
		||||
 | 
			
		||||
The following functions are available:
 | 
			
		||||
@table @option
 | 
			
		||||
@item abs(x)
 | 
			
		||||
Compute absolute value of @var{x}.
 | 
			
		||||
 | 
			
		||||
@item acos(x)
 | 
			
		||||
Compute arccosine of @var{x}.
 | 
			
		||||
 | 
			
		||||
@item asin(x)
 | 
			
		||||
Compute arcsine of @var{x}.
 | 
			
		||||
 | 
			
		||||
@item atan(x)
 | 
			
		||||
Compute arctangent of @var{x}.
 | 
			
		||||
 | 
			
		||||
@item ceil(expr)
 | 
			
		||||
Round the value of expression @var{expr} upwards to the nearest
 | 
			
		||||
integer. For example, "ceil(1.5)" is "2.0".
 | 
			
		||||
 | 
			
		||||
@item cos(x)
 | 
			
		||||
Compute cosine of @var{x}.
 | 
			
		||||
 | 
			
		||||
@item cosh(x)
 | 
			
		||||
Compute hyperbolic cosine of @var{x}.
 | 
			
		||||
 | 
			
		||||
@item eq(x, y)
 | 
			
		||||
Return 1 if @var{x} and @var{y} are equivalent, 0 otherwise.
 | 
			
		||||
 | 
			
		||||
@item exp(x)
 | 
			
		||||
Compute exponential of @var{x} (with base @code{e}, the Euler's number).
 | 
			
		||||
 | 
			
		||||
@item floor(expr)
 | 
			
		||||
Round the value of expression @var{expr} downwards to the nearest
 | 
			
		||||
integer. For example, "floor(-1.5)" is "-2.0".
 | 
			
		||||
 | 
			
		||||
@item gauss(x)
 | 
			
		||||
Compute Gauss function of @var{x}, corresponding to
 | 
			
		||||
@code{exp(-x*x/2) / sqrt(2*PI)}.
 | 
			
		||||
 | 
			
		||||
@item gcd(x, y)
 | 
			
		||||
Return the greatest common divisor of @var{x} and @var{y}. If both @var{x} and
 | 
			
		||||
@var{y} are 0 or either or both are less than zero then behavior is undefined.
 | 
			
		||||
 | 
			
		||||
@item gt(x, y)
 | 
			
		||||
Return 1 if @var{x} is greater than @var{y}, 0 otherwise.
 | 
			
		||||
 | 
			
		||||
@item gte(x, y)
 | 
			
		||||
Return 1 if @var{x} is greater than or equal to @var{y}, 0 otherwise.
 | 
			
		||||
 | 
			
		||||
@item hypot(x, y)
 | 
			
		||||
This function is similar to the C function with the same name; it returns
 | 
			
		||||
"sqrt(@var{x}*@var{x} + @var{y}*@var{y})", the length of the hypotenuse of a
 | 
			
		||||
right triangle with sides of length @var{x} and @var{y}, or the distance of the
 | 
			
		||||
point (@var{x}, @var{y}) from the origin.
 | 
			
		||||
 | 
			
		||||
@item if(x, y)
 | 
			
		||||
Evaluate @var{x}, and if the result is non-zero return the result of
 | 
			
		||||
the evaluation of @var{y}, return 0 otherwise.
 | 
			
		||||
 | 
			
		||||
@item if(x, y, z)
 | 
			
		||||
Evaluate @var{x}, and if the result is non-zero return the evaluation
 | 
			
		||||
result of @var{y}, otherwise the evaluation result of @var{z}.
 | 
			
		||||
 | 
			
		||||
@item ifnot(x, y)
 | 
			
		||||
Evaluate @var{x}, and if the result is zero return the result of the
 | 
			
		||||
evaluation of @var{y}, return 0 otherwise.
 | 
			
		||||
 | 
			
		||||
@item ifnot(x, y, z)
 | 
			
		||||
Evaluate @var{x}, and if the result is zero return the evaluation
 | 
			
		||||
result of @var{y}, otherwise the evaluation result of @var{z}.
 | 
			
		||||
 | 
			
		||||
@item isinf(x)
 | 
			
		||||
Return 1.0 if @var{x} is +/-INFINITY, 0.0 otherwise.
 | 
			
		||||
 | 
			
		||||
@item isnan(x)
 | 
			
		||||
Return 1.0 if @var{x} is NAN, 0.0 otherwise.
 | 
			
		||||
 | 
			
		||||
@item ld(var)
 | 
			
		||||
Allow to load the value of the internal variable with number
 | 
			
		||||
@var{var}, which was previously stored with st(@var{var}, @var{expr}).
 | 
			
		||||
The function returns the loaded value.
 | 
			
		||||
 | 
			
		||||
@item log(x)
 | 
			
		||||
Compute natural logarithm of @var{x}.
 | 
			
		||||
 | 
			
		||||
@item lt(x, y)
 | 
			
		||||
Return 1 if @var{x} is lesser than @var{y}, 0 otherwise.
 | 
			
		||||
 | 
			
		||||
@item lte(x, y)
 | 
			
		||||
Return 1 if @var{x} is lesser than or equal to @var{y}, 0 otherwise.
 | 
			
		||||
 | 
			
		||||
@item max(x, y)
 | 
			
		||||
Return the maximum between @var{x} and @var{y}.
 | 
			
		||||
 | 
			
		||||
@item min(x, y)
 | 
			
		||||
Return the maximum between @var{x} and @var{y}.
 | 
			
		||||
 | 
			
		||||
@item mod(x, y)
 | 
			
		||||
Compute the remainder of division of @var{x} by @var{y}.
 | 
			
		||||
 | 
			
		||||
@item not(expr)
 | 
			
		||||
Return 1.0 if @var{expr} is zero, 0.0 otherwise.
 | 
			
		||||
 | 
			
		||||
@item pow(x, y)
 | 
			
		||||
Compute the power of @var{x} elevated @var{y}, it is equivalent to
 | 
			
		||||
"(@var{x})^(@var{y})".
 | 
			
		||||
 | 
			
		||||
@item print(t)
 | 
			
		||||
@item print(t, l)
 | 
			
		||||
Print the value of expression @var{t} with loglevel @var{l}. If
 | 
			
		||||
@var{l} is not specified then a default log level is used.
 | 
			
		||||
Returns the value of the expression printed.
 | 
			
		||||
 | 
			
		||||
Prints t with loglevel l
 | 
			
		||||
 | 
			
		||||
@item random(x)
 | 
			
		||||
Return a pseudo random value between 0.0 and 1.0. @var{x} is the index of the
 | 
			
		||||
internal variable which will be used to save the seed/state.
 | 
			
		||||
 | 
			
		||||
@item root(expr, max)
 | 
			
		||||
Find an input value for which the function represented by @var{expr}
 | 
			
		||||
with argument @var{ld(0)} is 0 in the interval 0..@var{max}.
 | 
			
		||||
 | 
			
		||||
The expression in @var{expr} must denote a continuous function or the
 | 
			
		||||
result is undefined.
 | 
			
		||||
 | 
			
		||||
@var{ld(0)} is used to represent the function input value, which means
 | 
			
		||||
that the given expression will be evaluated multiple times with
 | 
			
		||||
various input values that the expression can access through
 | 
			
		||||
@code{ld(0)}. When the expression evaluates to 0 then the
 | 
			
		||||
corresponding input value will be returned.
 | 
			
		||||
 | 
			
		||||
@item sin(x)
 | 
			
		||||
Compute sine of @var{x}.
 | 
			
		||||
 | 
			
		||||
@item sinh(x)
 | 
			
		||||
Compute hyperbolic sine of @var{x}.
 | 
			
		||||
 | 
			
		||||
@item sqrt(expr)
 | 
			
		||||
Compute the square root of @var{expr}. This is equivalent to
 | 
			
		||||
"(@var{expr})^.5".
 | 
			
		||||
 | 
			
		||||
@item squish(x)
 | 
			
		||||
Compute expression @code{1/(1 + exp(4*x))}.
 | 
			
		||||
 | 
			
		||||
@item st(var, expr)
 | 
			
		||||
Allow to store the value of the expression @var{expr} in an internal
 | 
			
		||||
variable. @var{var} specifies the number of the variable where to
 | 
			
		||||
store the value, and it is a value ranging from 0 to 9. The function
 | 
			
		||||
returns the value stored in the internal variable.
 | 
			
		||||
Note, Variables are currently not shared between expressions.
 | 
			
		||||
 | 
			
		||||
@item tan(x)
 | 
			
		||||
Compute tangent of @var{x}.
 | 
			
		||||
 | 
			
		||||
@item tanh(x)
 | 
			
		||||
Compute hyperbolic tangent of @var{x}.
 | 
			
		||||
 | 
			
		||||
@item taylor(expr, x)
 | 
			
		||||
@item taylor(expr, x, id)
 | 
			
		||||
Evaluate a Taylor series at @var{x}, given an expression representing
 | 
			
		||||
the @code{ld(id)}-th derivative of a function at 0.
 | 
			
		||||
 | 
			
		||||
When the series does not converge the result is undefined.
 | 
			
		||||
 | 
			
		||||
@var{ld(id)} is used to represent the derivative order in @var{expr},
 | 
			
		||||
which means that the given expression will be evaluated multiple times
 | 
			
		||||
with various input values that the expression can access through
 | 
			
		||||
@code{ld(id)}. If @var{id} is not specified then 0 is assumed.
 | 
			
		||||
 | 
			
		||||
Note, when you have the derivatives at y instead of 0,
 | 
			
		||||
@code{taylor(expr, x-y)} can be used.
 | 
			
		||||
 | 
			
		||||
@item time(0)
 | 
			
		||||
Return the current (wallclock) time in seconds.
 | 
			
		||||
 | 
			
		||||
@item trunc(expr)
 | 
			
		||||
Round the value of expression @var{expr} towards zero to the nearest
 | 
			
		||||
integer. For example, "trunc(-1.5)" is "-1.0".
 | 
			
		||||
 | 
			
		||||
@item while(cond, expr)
 | 
			
		||||
Evaluate expression @var{expr} while the expression @var{cond} is
 | 
			
		||||
non-zero, and returns the value of the last @var{expr} evaluation, or
 | 
			
		||||
NAN if @var{cond} was always false.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
The following constants are available:
 | 
			
		||||
@table @option
 | 
			
		||||
@item PI
 | 
			
		||||
area of the unit disc, approximately 3.14
 | 
			
		||||
@item E
 | 
			
		||||
exp(1) (Euler's number), approximately 2.718
 | 
			
		||||
@item PHI
 | 
			
		||||
golden ratio (1+sqrt(5))/2, approximately 1.618
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
Assuming that an expression is considered "true" if it has a non-zero
 | 
			
		||||
value, note that:
 | 
			
		||||
 | 
			
		||||
@code{*} works like AND
 | 
			
		||||
 | 
			
		||||
@code{+} works like OR
 | 
			
		||||
 | 
			
		||||
For example the construct:
 | 
			
		||||
@example
 | 
			
		||||
if (A AND B) then C
 | 
			
		||||
@end example
 | 
			
		||||
is equivalent to:
 | 
			
		||||
@example
 | 
			
		||||
if(A*B, C)
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
In your C code, you can extend the list of unary and binary functions,
 | 
			
		||||
and define recognized constants, so that they are available for your
 | 
			
		||||
expressions.
 | 
			
		||||
 | 
			
		||||
The evaluator also recognizes the International System unit prefixes.
 | 
			
		||||
If 'i' is appended after the prefix, binary prefixes are used, which
 | 
			
		||||
are based on powers of 1024 instead of powers of 1000.
 | 
			
		||||
The 'B' postfix multiplies the value by 8, and can be appended after a
 | 
			
		||||
unit prefix or used alone. This allows using for example 'KB', 'MiB',
 | 
			
		||||
'G' and 'B' as number postfix.
 | 
			
		||||
 | 
			
		||||
The list of available International System prefixes follows, with
 | 
			
		||||
indication of the corresponding powers of 10 and of 2.
 | 
			
		||||
@table @option
 | 
			
		||||
@item y
 | 
			
		||||
10^-24 / 2^-80
 | 
			
		||||
@item z
 | 
			
		||||
10^-21 / 2^-70
 | 
			
		||||
@item a
 | 
			
		||||
10^-18 / 2^-60
 | 
			
		||||
@item f
 | 
			
		||||
10^-15 / 2^-50
 | 
			
		||||
@item p
 | 
			
		||||
10^-12 / 2^-40
 | 
			
		||||
@item n
 | 
			
		||||
10^-9 / 2^-30
 | 
			
		||||
@item u
 | 
			
		||||
10^-6 / 2^-20
 | 
			
		||||
@item m
 | 
			
		||||
10^-3 / 2^-10
 | 
			
		||||
@item c
 | 
			
		||||
10^-2
 | 
			
		||||
@item d
 | 
			
		||||
10^-1
 | 
			
		||||
@item h
 | 
			
		||||
10^2
 | 
			
		||||
@item k
 | 
			
		||||
10^3 / 2^10
 | 
			
		||||
@item K
 | 
			
		||||
10^3 / 2^10
 | 
			
		||||
@item M
 | 
			
		||||
10^6 / 2^20
 | 
			
		||||
@item G
 | 
			
		||||
10^9 / 2^30
 | 
			
		||||
@item T
 | 
			
		||||
10^12 / 2^40
 | 
			
		||||
@item P
 | 
			
		||||
10^15 / 2^40
 | 
			
		||||
@item E
 | 
			
		||||
10^18 / 2^50
 | 
			
		||||
@item Z
 | 
			
		||||
10^21 / 2^60
 | 
			
		||||
@item Y
 | 
			
		||||
10^24 / 2^70
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@c man end
 | 
			
		||||
@@ -7,33 +7,24 @@ FFMPEG_LIBS=    libavdevice                        \
 | 
			
		||||
                libswscale                         \
 | 
			
		||||
                libavutil                          \
 | 
			
		||||
 | 
			
		||||
CFLAGS += -Wall -g
 | 
			
		||||
CFLAGS += -Wall -O2 -g
 | 
			
		||||
CFLAGS := $(shell pkg-config --cflags $(FFMPEG_LIBS)) $(CFLAGS)
 | 
			
		||||
LDLIBS := $(shell pkg-config --libs $(FFMPEG_LIBS)) $(LDLIBS)
 | 
			
		||||
 | 
			
		||||
EXAMPLES=       avio_dir_cmd                       \
 | 
			
		||||
                avio_reading                       \
 | 
			
		||||
                decoding_encoding                  \
 | 
			
		||||
                demuxing_decoding                  \
 | 
			
		||||
                extract_mvs                        \
 | 
			
		||||
EXAMPLES=       decoding_encoding                  \
 | 
			
		||||
                demuxing                           \
 | 
			
		||||
                filtering_video                    \
 | 
			
		||||
                filtering_audio                    \
 | 
			
		||||
                http_multiclient                   \
 | 
			
		||||
                metadata                           \
 | 
			
		||||
                muxing                             \
 | 
			
		||||
                remuxing                           \
 | 
			
		||||
                resampling_audio                   \
 | 
			
		||||
                scaling_video                      \
 | 
			
		||||
                transcode_aac                      \
 | 
			
		||||
                transcoding                        \
 | 
			
		||||
 | 
			
		||||
OBJS=$(addsuffix .o,$(EXAMPLES))
 | 
			
		||||
 | 
			
		||||
# the following examples make explicit use of the math library
 | 
			
		||||
avcodec:           LDLIBS += -lm
 | 
			
		||||
decoding_encoding: LDLIBS += -lm
 | 
			
		||||
muxing:            LDLIBS += -lm
 | 
			
		||||
resampling_audio:  LDLIBS += -lm
 | 
			
		||||
 | 
			
		||||
.phony: all clean-test clean
 | 
			
		||||
 | 
			
		||||
 
 | 
			
		||||
@@ -5,19 +5,14 @@ Both following use cases rely on pkg-config and make, thus make sure
 | 
			
		||||
that you have them installed and working on your system.
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
Method 1: build the installed examples in a generic read/write user directory
 | 
			
		||||
1) Build the installed examples in a generic read/write user directory
 | 
			
		||||
 | 
			
		||||
Copy to a read/write user directory and just use "make", it will link
 | 
			
		||||
to the libraries on your system, assuming the PKG_CONFIG_PATH is
 | 
			
		||||
correctly configured.
 | 
			
		||||
 | 
			
		||||
Method 2: build the examples in-tree
 | 
			
		||||
2) Build the examples in-tree
 | 
			
		||||
 | 
			
		||||
Assuming you are in the source FFmpeg checkout directory, you need to build
 | 
			
		||||
FFmpeg (no need to make install in any prefix). Then just run "make examples".
 | 
			
		||||
This will build the examples using the FFmpeg build system. You can clean those
 | 
			
		||||
examples using "make examplesclean"
 | 
			
		||||
 | 
			
		||||
If you want to try the dedicated Makefile examples (to emulate the first
 | 
			
		||||
method), go into doc/examples and run a command such as
 | 
			
		||||
PKG_CONFIG_PATH=pc-uninstalled make.
 | 
			
		||||
FFmpeg (no need to make install in any prefix). Then you can go into the
 | 
			
		||||
doc/examples and run a command such as PKG_CONFIG_PATH=pc-uninstalled make.
 | 
			
		||||
 
 | 
			
		||||
@@ -1,180 +0,0 @@
 | 
			
		||||
/*
 | 
			
		||||
 * Copyright (c) 2014 Lukasz Marek
 | 
			
		||||
 *
 | 
			
		||||
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 | 
			
		||||
 * of this software and associated documentation files (the "Software"), to deal
 | 
			
		||||
 * in the Software without restriction, including without limitation the rights
 | 
			
		||||
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 | 
			
		||||
 * copies of the Software, and to permit persons to whom the Software is
 | 
			
		||||
 * furnished to do so, subject to the following conditions:
 | 
			
		||||
 *
 | 
			
		||||
 * The above copyright notice and this permission notice shall be included in
 | 
			
		||||
 * all copies or substantial portions of the Software.
 | 
			
		||||
 *
 | 
			
		||||
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 | 
			
		||||
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 | 
			
		||||
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 | 
			
		||||
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 | 
			
		||||
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 | 
			
		||||
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 | 
			
		||||
 * THE SOFTWARE.
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
#include <libavcodec/avcodec.h>
 | 
			
		||||
#include <libavformat/avformat.h>
 | 
			
		||||
#include <libavformat/avio.h>
 | 
			
		||||
 | 
			
		||||
static const char *type_string(int type)
 | 
			
		||||
{
 | 
			
		||||
    switch (type) {
 | 
			
		||||
    case AVIO_ENTRY_DIRECTORY:
 | 
			
		||||
        return "<DIR>";
 | 
			
		||||
    case AVIO_ENTRY_FILE:
 | 
			
		||||
        return "<FILE>";
 | 
			
		||||
    case AVIO_ENTRY_BLOCK_DEVICE:
 | 
			
		||||
        return "<BLOCK DEVICE>";
 | 
			
		||||
    case AVIO_ENTRY_CHARACTER_DEVICE:
 | 
			
		||||
        return "<CHARACTER DEVICE>";
 | 
			
		||||
    case AVIO_ENTRY_NAMED_PIPE:
 | 
			
		||||
        return "<PIPE>";
 | 
			
		||||
    case AVIO_ENTRY_SYMBOLIC_LINK:
 | 
			
		||||
        return "<LINK>";
 | 
			
		||||
    case AVIO_ENTRY_SOCKET:
 | 
			
		||||
        return "<SOCKET>";
 | 
			
		||||
    case AVIO_ENTRY_SERVER:
 | 
			
		||||
        return "<SERVER>";
 | 
			
		||||
    case AVIO_ENTRY_SHARE:
 | 
			
		||||
        return "<SHARE>";
 | 
			
		||||
    case AVIO_ENTRY_WORKGROUP:
 | 
			
		||||
        return "<WORKGROUP>";
 | 
			
		||||
    case AVIO_ENTRY_UNKNOWN:
 | 
			
		||||
    default:
 | 
			
		||||
        break;
 | 
			
		||||
    }
 | 
			
		||||
    return "<UNKNOWN>";
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static int list_op(const char *input_dir)
 | 
			
		||||
{
 | 
			
		||||
    AVIODirEntry *entry = NULL;
 | 
			
		||||
    AVIODirContext *ctx = NULL;
 | 
			
		||||
    int cnt, ret;
 | 
			
		||||
    char filemode[4], uid_and_gid[20];
 | 
			
		||||
 | 
			
		||||
    if ((ret = avio_open_dir(&ctx, input_dir, NULL)) < 0) {
 | 
			
		||||
        av_log(NULL, AV_LOG_ERROR, "Cannot open directory: %s.\n", av_err2str(ret));
 | 
			
		||||
        goto fail;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    cnt = 0;
 | 
			
		||||
    for (;;) {
 | 
			
		||||
        if ((ret = avio_read_dir(ctx, &entry)) < 0) {
 | 
			
		||||
            av_log(NULL, AV_LOG_ERROR, "Cannot list directory: %s.\n", av_err2str(ret));
 | 
			
		||||
            goto fail;
 | 
			
		||||
        }
 | 
			
		||||
        if (!entry)
 | 
			
		||||
            break;
 | 
			
		||||
        if (entry->filemode == -1) {
 | 
			
		||||
            snprintf(filemode, 4, "???");
 | 
			
		||||
        } else {
 | 
			
		||||
            snprintf(filemode, 4, "%3"PRIo64, entry->filemode);
 | 
			
		||||
        }
 | 
			
		||||
        snprintf(uid_and_gid, 20, "%"PRId64"(%"PRId64")", entry->user_id, entry->group_id);
 | 
			
		||||
        if (cnt == 0)
 | 
			
		||||
            av_log(NULL, AV_LOG_INFO, "%-9s %12s %30s %10s %s %16s %16s %16s\n",
 | 
			
		||||
                   "TYPE", "SIZE", "NAME", "UID(GID)", "UGO", "MODIFIED",
 | 
			
		||||
                   "ACCESSED", "STATUS_CHANGED");
 | 
			
		||||
        av_log(NULL, AV_LOG_INFO, "%-9s %12"PRId64" %30s %10s %s %16"PRId64" %16"PRId64" %16"PRId64"\n",
 | 
			
		||||
               type_string(entry->type),
 | 
			
		||||
               entry->size,
 | 
			
		||||
               entry->name,
 | 
			
		||||
               uid_and_gid,
 | 
			
		||||
               filemode,
 | 
			
		||||
               entry->modification_timestamp,
 | 
			
		||||
               entry->access_timestamp,
 | 
			
		||||
               entry->status_change_timestamp);
 | 
			
		||||
        avio_free_directory_entry(&entry);
 | 
			
		||||
        cnt++;
 | 
			
		||||
    };
 | 
			
		||||
 | 
			
		||||
  fail:
 | 
			
		||||
    avio_close_dir(&ctx);
 | 
			
		||||
    return ret;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static int del_op(const char *url)
 | 
			
		||||
{
 | 
			
		||||
    int ret = avpriv_io_delete(url);
 | 
			
		||||
    if (ret < 0)
 | 
			
		||||
        av_log(NULL, AV_LOG_ERROR, "Cannot delete '%s': %s.\n", url, av_err2str(ret));
 | 
			
		||||
    return ret;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static int move_op(const char *src, const char *dst)
 | 
			
		||||
{
 | 
			
		||||
    int ret = avpriv_io_move(src, dst);
 | 
			
		||||
    if (ret < 0)
 | 
			
		||||
        av_log(NULL, AV_LOG_ERROR, "Cannot move '%s' into '%s': %s.\n", src, dst, av_err2str(ret));
 | 
			
		||||
    return ret;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
static void usage(const char *program_name)
 | 
			
		||||
{
 | 
			
		||||
    fprintf(stderr, "usage: %s OPERATION entry1 [entry2]\n"
 | 
			
		||||
            "API example program to show how to manipulate resources "
 | 
			
		||||
            "accessed through AVIOContext.\n"
 | 
			
		||||
            "OPERATIONS:\n"
 | 
			
		||||
            "list      list content of the directory\n"
 | 
			
		||||
            "move      rename content in directory\n"
 | 
			
		||||
            "del       delete content in directory\n",
 | 
			
		||||
            program_name);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
int main(int argc, char *argv[])
 | 
			
		||||
{
 | 
			
		||||
    const char *op = NULL;
 | 
			
		||||
    int ret;
 | 
			
		||||
 | 
			
		||||
    av_log_set_level(AV_LOG_DEBUG);
 | 
			
		||||
 | 
			
		||||
    if (argc < 2) {
 | 
			
		||||
        usage(argv[0]);
 | 
			
		||||
        return 1;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* register codecs and formats and other lavf/lavc components*/
 | 
			
		||||
    av_register_all();
 | 
			
		||||
    avformat_network_init();
 | 
			
		||||
 | 
			
		||||
    op = argv[1];
 | 
			
		||||
    if (strcmp(op, "list") == 0) {
 | 
			
		||||
        if (argc < 3) {
 | 
			
		||||
            av_log(NULL, AV_LOG_INFO, "Missing argument for list operation.\n");
 | 
			
		||||
            ret = AVERROR(EINVAL);
 | 
			
		||||
        } else {
 | 
			
		||||
            ret = list_op(argv[2]);
 | 
			
		||||
        }
 | 
			
		||||
    } else if (strcmp(op, "del") == 0) {
 | 
			
		||||
        if (argc < 3) {
 | 
			
		||||
            av_log(NULL, AV_LOG_INFO, "Missing argument for del operation.\n");
 | 
			
		||||
            ret = AVERROR(EINVAL);
 | 
			
		||||
        } else {
 | 
			
		||||
            ret = del_op(argv[2]);
 | 
			
		||||
        }
 | 
			
		||||
    } else if (strcmp(op, "move") == 0) {
 | 
			
		||||
        if (argc < 4) {
 | 
			
		||||
            av_log(NULL, AV_LOG_INFO, "Missing argument for move operation.\n");
 | 
			
		||||
            ret = AVERROR(EINVAL);
 | 
			
		||||
        } else {
 | 
			
		||||
            ret = move_op(argv[2], argv[3]);
 | 
			
		||||
        }
 | 
			
		||||
    } else {
 | 
			
		||||
        av_log(NULL, AV_LOG_INFO, "Invalid operation %s\n", op);
 | 
			
		||||
        ret = AVERROR(EINVAL);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    avformat_network_deinit();
 | 
			
		||||
 | 
			
		||||
    return ret < 0 ? 1 : 0;
 | 
			
		||||
}
 | 
			
		||||
@@ -1,134 +0,0 @@
 | 
			
		||||
/*
 | 
			
		||||
 * Copyright (c) 2014 Stefano Sabatini
 | 
			
		||||
 *
 | 
			
		||||
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 | 
			
		||||
 * of this software and associated documentation files (the "Software"), to deal
 | 
			
		||||
 * in the Software without restriction, including without limitation the rights
 | 
			
		||||
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 | 
			
		||||
 * copies of the Software, and to permit persons to whom the Software is
 | 
			
		||||
 * furnished to do so, subject to the following conditions:
 | 
			
		||||
 *
 | 
			
		||||
 * The above copyright notice and this permission notice shall be included in
 | 
			
		||||
 * all copies or substantial portions of the Software.
 | 
			
		||||
 *
 | 
			
		||||
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 | 
			
		||||
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 | 
			
		||||
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 | 
			
		||||
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 | 
			
		||||
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 | 
			
		||||
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 | 
			
		||||
 * THE SOFTWARE.
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * @file
 | 
			
		||||
 * libavformat AVIOContext API example.
 | 
			
		||||
 *
 | 
			
		||||
 * Make libavformat demuxer access media content through a custom
 | 
			
		||||
 * AVIOContext read callback.
 | 
			
		||||
 * @example avio_reading.c
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
#include <libavcodec/avcodec.h>
 | 
			
		||||
#include <libavformat/avformat.h>
 | 
			
		||||
#include <libavformat/avio.h>
 | 
			
		||||
#include <libavutil/file.h>
 | 
			
		||||
 | 
			
		||||
struct buffer_data {
 | 
			
		||||
    uint8_t *ptr;
 | 
			
		||||
    size_t size; ///< size left in the buffer
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
static int read_packet(void *opaque, uint8_t *buf, int buf_size)
 | 
			
		||||
{
 | 
			
		||||
    struct buffer_data *bd = (struct buffer_data *)opaque;
 | 
			
		||||
    buf_size = FFMIN(buf_size, bd->size);
 | 
			
		||||
 | 
			
		||||
    printf("ptr:%p size:%zu\n", bd->ptr, bd->size);
 | 
			
		||||
 | 
			
		||||
    /* copy internal buffer data to buf */
 | 
			
		||||
    memcpy(buf, bd->ptr, buf_size);
 | 
			
		||||
    bd->ptr  += buf_size;
 | 
			
		||||
    bd->size -= buf_size;
 | 
			
		||||
 | 
			
		||||
    return buf_size;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
int main(int argc, char *argv[])
 | 
			
		||||
{
 | 
			
		||||
    AVFormatContext *fmt_ctx = NULL;
 | 
			
		||||
    AVIOContext *avio_ctx = NULL;
 | 
			
		||||
    uint8_t *buffer = NULL, *avio_ctx_buffer = NULL;
 | 
			
		||||
    size_t buffer_size, avio_ctx_buffer_size = 4096;
 | 
			
		||||
    char *input_filename = NULL;
 | 
			
		||||
    int ret = 0;
 | 
			
		||||
    struct buffer_data bd = { 0 };
 | 
			
		||||
 | 
			
		||||
    if (argc != 2) {
 | 
			
		||||
        fprintf(stderr, "usage: %s input_file\n"
 | 
			
		||||
                "API example program to show how to read from a custom buffer "
 | 
			
		||||
                "accessed through AVIOContext.\n", argv[0]);
 | 
			
		||||
        return 1;
 | 
			
		||||
    }
 | 
			
		||||
    input_filename = argv[1];
 | 
			
		||||
 | 
			
		||||
    /* register codecs and formats and other lavf/lavc components*/
 | 
			
		||||
    av_register_all();
 | 
			
		||||
 | 
			
		||||
    /* slurp file content into buffer */
 | 
			
		||||
    ret = av_file_map(input_filename, &buffer, &buffer_size, 0, NULL);
 | 
			
		||||
    if (ret < 0)
 | 
			
		||||
        goto end;
 | 
			
		||||
 | 
			
		||||
    /* fill opaque structure used by the AVIOContext read callback */
 | 
			
		||||
    bd.ptr  = buffer;
 | 
			
		||||
    bd.size = buffer_size;
 | 
			
		||||
 | 
			
		||||
    if (!(fmt_ctx = avformat_alloc_context())) {
 | 
			
		||||
        ret = AVERROR(ENOMEM);
 | 
			
		||||
        goto end;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    avio_ctx_buffer = av_malloc(avio_ctx_buffer_size);
 | 
			
		||||
    if (!avio_ctx_buffer) {
 | 
			
		||||
        ret = AVERROR(ENOMEM);
 | 
			
		||||
        goto end;
 | 
			
		||||
    }
 | 
			
		||||
    avio_ctx = avio_alloc_context(avio_ctx_buffer, avio_ctx_buffer_size,
 | 
			
		||||
                                  0, &bd, &read_packet, NULL, NULL);
 | 
			
		||||
    if (!avio_ctx) {
 | 
			
		||||
        ret = AVERROR(ENOMEM);
 | 
			
		||||
        goto end;
 | 
			
		||||
    }
 | 
			
		||||
    fmt_ctx->pb = avio_ctx;
 | 
			
		||||
 | 
			
		||||
    ret = avformat_open_input(&fmt_ctx, NULL, NULL, NULL);
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
        fprintf(stderr, "Could not open input\n");
 | 
			
		||||
        goto end;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    ret = avformat_find_stream_info(fmt_ctx, NULL);
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
        fprintf(stderr, "Could not find stream information\n");
 | 
			
		||||
        goto end;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    av_dump_format(fmt_ctx, 0, input_filename, 0);
 | 
			
		||||
 | 
			
		||||
end:
 | 
			
		||||
    avformat_close_input(&fmt_ctx);
 | 
			
		||||
    /* note: the internal buffer could have changed, and be != avio_ctx_buffer */
 | 
			
		||||
    if (avio_ctx) {
 | 
			
		||||
        av_freep(&avio_ctx->buffer);
 | 
			
		||||
        av_freep(&avio_ctx);
 | 
			
		||||
    }
 | 
			
		||||
    av_file_unmap(buffer, buffer_size);
 | 
			
		||||
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
        fprintf(stderr, "Error occurred: %s\n", av_err2str(ret));
 | 
			
		||||
        return 1;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    return 0;
 | 
			
		||||
}
 | 
			
		||||
@@ -24,10 +24,10 @@
 | 
			
		||||
 * @file
 | 
			
		||||
 * libavcodec API use example.
 | 
			
		||||
 *
 | 
			
		||||
 * @example decoding_encoding.c
 | 
			
		||||
 * Note that libavcodec only handles codecs (mpeg, mpeg4, etc...),
 | 
			
		||||
 * not file formats (avi, vob, mp4, mov, mkv, mxf, flv, mpegts, mpegps, etc...). See library 'libavformat' for the
 | 
			
		||||
 * format handling
 | 
			
		||||
 * @example doc/examples/decoding_encoding.c
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
#include <math.h>
 | 
			
		||||
@@ -79,7 +79,7 @@ static int select_channel_layout(AVCodec *codec)
 | 
			
		||||
{
 | 
			
		||||
    const uint64_t *p;
 | 
			
		||||
    uint64_t best_ch_layout = 0;
 | 
			
		||||
    int best_nb_channels   = 0;
 | 
			
		||||
    int best_nb_channells   = 0;
 | 
			
		||||
 | 
			
		||||
    if (!codec->channel_layouts)
 | 
			
		||||
        return AV_CH_LAYOUT_STEREO;
 | 
			
		||||
@@ -88,9 +88,9 @@ static int select_channel_layout(AVCodec *codec)
 | 
			
		||||
    while (*p) {
 | 
			
		||||
        int nb_channels = av_get_channel_layout_nb_channels(*p);
 | 
			
		||||
 | 
			
		||||
        if (nb_channels > best_nb_channels) {
 | 
			
		||||
        if (nb_channels > best_nb_channells) {
 | 
			
		||||
            best_ch_layout    = *p;
 | 
			
		||||
            best_nb_channels = nb_channels;
 | 
			
		||||
            best_nb_channells = nb_channels;
 | 
			
		||||
        }
 | 
			
		||||
        p++;
 | 
			
		||||
    }
 | 
			
		||||
@@ -156,7 +156,7 @@ static void audio_encode_example(const char *filename)
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* frame containing input raw audio */
 | 
			
		||||
    frame = av_frame_alloc();
 | 
			
		||||
    frame = avcodec_alloc_frame();
 | 
			
		||||
    if (!frame) {
 | 
			
		||||
        fprintf(stderr, "Could not allocate audio frame\n");
 | 
			
		||||
        exit(1);
 | 
			
		||||
@@ -170,10 +170,6 @@ static void audio_encode_example(const char *filename)
 | 
			
		||||
     * we calculate the size of the samples buffer in bytes */
 | 
			
		||||
    buffer_size = av_samples_get_buffer_size(NULL, c->channels, c->frame_size,
 | 
			
		||||
                                             c->sample_fmt, 0);
 | 
			
		||||
    if (buffer_size < 0) {
 | 
			
		||||
        fprintf(stderr, "Could not get sample buffer size\n");
 | 
			
		||||
        exit(1);
 | 
			
		||||
    }
 | 
			
		||||
    samples = av_malloc(buffer_size);
 | 
			
		||||
    if (!samples) {
 | 
			
		||||
        fprintf(stderr, "Could not allocate %d bytes for samples buffer\n",
 | 
			
		||||
@@ -231,7 +227,7 @@ static void audio_encode_example(const char *filename)
 | 
			
		||||
    fclose(f);
 | 
			
		||||
 | 
			
		||||
    av_freep(&samples);
 | 
			
		||||
    av_frame_free(&frame);
 | 
			
		||||
    avcodec_free_frame(&frame);
 | 
			
		||||
    avcodec_close(c);
 | 
			
		||||
    av_free(c);
 | 
			
		||||
}
 | 
			
		||||
@@ -245,7 +241,7 @@ static void audio_decode_example(const char *outfilename, const char *filename)
 | 
			
		||||
    AVCodecContext *c= NULL;
 | 
			
		||||
    int len;
 | 
			
		||||
    FILE *f, *outfile;
 | 
			
		||||
    uint8_t inbuf[AUDIO_INBUF_SIZE + AV_INPUT_BUFFER_PADDING_SIZE];
 | 
			
		||||
    uint8_t inbuf[AUDIO_INBUF_SIZE + FF_INPUT_BUFFER_PADDING_SIZE];
 | 
			
		||||
    AVPacket avpkt;
 | 
			
		||||
    AVFrame *decoded_frame = NULL;
 | 
			
		||||
 | 
			
		||||
@@ -288,15 +284,15 @@ static void audio_decode_example(const char *outfilename, const char *filename)
 | 
			
		||||
    avpkt.size = fread(inbuf, 1, AUDIO_INBUF_SIZE, f);
 | 
			
		||||
 | 
			
		||||
    while (avpkt.size > 0) {
 | 
			
		||||
        int i, ch;
 | 
			
		||||
        int got_frame = 0;
 | 
			
		||||
 | 
			
		||||
        if (!decoded_frame) {
 | 
			
		||||
            if (!(decoded_frame = av_frame_alloc())) {
 | 
			
		||||
            if (!(decoded_frame = avcodec_alloc_frame())) {
 | 
			
		||||
                fprintf(stderr, "Could not allocate audio frame\n");
 | 
			
		||||
                exit(1);
 | 
			
		||||
            }
 | 
			
		||||
        }
 | 
			
		||||
        } else
 | 
			
		||||
            avcodec_get_frame_defaults(decoded_frame);
 | 
			
		||||
 | 
			
		||||
        len = avcodec_decode_audio4(c, decoded_frame, &got_frame, &avpkt);
 | 
			
		||||
        if (len < 0) {
 | 
			
		||||
@@ -305,15 +301,10 @@ static void audio_decode_example(const char *outfilename, const char *filename)
 | 
			
		||||
        }
 | 
			
		||||
        if (got_frame) {
 | 
			
		||||
            /* if a frame has been decoded, output it */
 | 
			
		||||
            int data_size = av_get_bytes_per_sample(c->sample_fmt);
 | 
			
		||||
            if (data_size < 0) {
 | 
			
		||||
                /* This should not occur, checking just for paranoia */
 | 
			
		||||
                fprintf(stderr, "Failed to calculate data size\n");
 | 
			
		||||
                exit(1);
 | 
			
		||||
            }
 | 
			
		||||
            for (i=0; i<decoded_frame->nb_samples; i++)
 | 
			
		||||
                for (ch=0; ch<c->channels; ch++)
 | 
			
		||||
                    fwrite(decoded_frame->data[ch] + data_size*i, 1, data_size, outfile);
 | 
			
		||||
            int data_size = av_samples_get_buffer_size(NULL, c->channels,
 | 
			
		||||
                                                       decoded_frame->nb_samples,
 | 
			
		||||
                                                       c->sample_fmt, 1);
 | 
			
		||||
            fwrite(decoded_frame->data[0], 1, data_size, outfile);
 | 
			
		||||
        }
 | 
			
		||||
        avpkt.size -= len;
 | 
			
		||||
        avpkt.data += len;
 | 
			
		||||
@@ -338,7 +329,7 @@ static void audio_decode_example(const char *outfilename, const char *filename)
 | 
			
		||||
 | 
			
		||||
    avcodec_close(c);
 | 
			
		||||
    av_free(c);
 | 
			
		||||
    av_frame_free(&decoded_frame);
 | 
			
		||||
    avcodec_free_frame(&decoded_frame);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/*
 | 
			
		||||
@@ -376,13 +367,7 @@ static void video_encode_example(const char *filename, int codec_id)
 | 
			
		||||
    c->height = 288;
 | 
			
		||||
    /* frames per second */
 | 
			
		||||
    c->time_base= (AVRational){1,25};
 | 
			
		||||
    /* emit one intra frame every ten frames
 | 
			
		||||
     * check frame pict_type before passing frame
 | 
			
		||||
     * to encoder, if frame->pict_type is AV_PICTURE_TYPE_I
 | 
			
		||||
     * then gop_size is ignored and the output of encoder
 | 
			
		||||
     * will always be I frame irrespective to gop_size
 | 
			
		||||
     */
 | 
			
		||||
    c->gop_size = 10;
 | 
			
		||||
    c->gop_size = 10; /* emit one intra frame every ten frames */
 | 
			
		||||
    c->max_b_frames=1;
 | 
			
		||||
    c->pix_fmt = AV_PIX_FMT_YUV420P;
 | 
			
		||||
 | 
			
		||||
@@ -401,7 +386,7 @@ static void video_encode_example(const char *filename, int codec_id)
 | 
			
		||||
        exit(1);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    frame = av_frame_alloc();
 | 
			
		||||
    frame = avcodec_alloc_frame();
 | 
			
		||||
    if (!frame) {
 | 
			
		||||
        fprintf(stderr, "Could not allocate video frame\n");
 | 
			
		||||
        exit(1);
 | 
			
		||||
@@ -482,7 +467,7 @@ static void video_encode_example(const char *filename, int codec_id)
 | 
			
		||||
    avcodec_close(c);
 | 
			
		||||
    av_free(c);
 | 
			
		||||
    av_freep(&frame->data[0]);
 | 
			
		||||
    av_frame_free(&frame);
 | 
			
		||||
    avcodec_free_frame(&frame);
 | 
			
		||||
    printf("\n");
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
@@ -521,7 +506,7 @@ static int decode_write_frame(const char *outfilename, AVCodecContext *avctx,
 | 
			
		||||
        /* the picture is allocated by the decoder, no need to free it */
 | 
			
		||||
        snprintf(buf, sizeof(buf), outfilename, *frame_count);
 | 
			
		||||
        pgm_save(frame->data[0], frame->linesize[0],
 | 
			
		||||
                 frame->width, frame->height, buf);
 | 
			
		||||
                 avctx->width, avctx->height, buf);
 | 
			
		||||
        (*frame_count)++;
 | 
			
		||||
    }
 | 
			
		||||
    if (pkt->data) {
 | 
			
		||||
@@ -538,13 +523,13 @@ static void video_decode_example(const char *outfilename, const char *filename)
 | 
			
		||||
    int frame_count;
 | 
			
		||||
    FILE *f;
 | 
			
		||||
    AVFrame *frame;
 | 
			
		||||
    uint8_t inbuf[INBUF_SIZE + AV_INPUT_BUFFER_PADDING_SIZE];
 | 
			
		||||
    uint8_t inbuf[INBUF_SIZE + FF_INPUT_BUFFER_PADDING_SIZE];
 | 
			
		||||
    AVPacket avpkt;
 | 
			
		||||
 | 
			
		||||
    av_init_packet(&avpkt);
 | 
			
		||||
 | 
			
		||||
    /* set end of buffer to 0 (this ensures that no overreading happens for damaged mpeg streams) */
 | 
			
		||||
    memset(inbuf + INBUF_SIZE, 0, AV_INPUT_BUFFER_PADDING_SIZE);
 | 
			
		||||
    memset(inbuf + INBUF_SIZE, 0, FF_INPUT_BUFFER_PADDING_SIZE);
 | 
			
		||||
 | 
			
		||||
    printf("Decode video file %s to %s\n", filename, outfilename);
 | 
			
		||||
 | 
			
		||||
@@ -561,8 +546,8 @@ static void video_decode_example(const char *outfilename, const char *filename)
 | 
			
		||||
        exit(1);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    if (codec->capabilities & AV_CODEC_CAP_TRUNCATED)
 | 
			
		||||
        c->flags |= AV_CODEC_FLAG_TRUNCATED; // we do not send complete frames
 | 
			
		||||
    if(codec->capabilities&CODEC_CAP_TRUNCATED)
 | 
			
		||||
        c->flags|= CODEC_FLAG_TRUNCATED; /* we do not send complete frames */
 | 
			
		||||
 | 
			
		||||
    /* For some codecs, such as msmpeg4 and mpeg4, width and height
 | 
			
		||||
       MUST be initialized there because this information is not
 | 
			
		||||
@@ -580,7 +565,7 @@ static void video_decode_example(const char *outfilename, const char *filename)
 | 
			
		||||
        exit(1);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    frame = av_frame_alloc();
 | 
			
		||||
    frame = avcodec_alloc_frame();
 | 
			
		||||
    if (!frame) {
 | 
			
		||||
        fprintf(stderr, "Could not allocate video frame\n");
 | 
			
		||||
        exit(1);
 | 
			
		||||
@@ -624,7 +609,7 @@ static void video_decode_example(const char *outfilename, const char *filename)
 | 
			
		||||
 | 
			
		||||
    avcodec_close(c);
 | 
			
		||||
    av_free(c);
 | 
			
		||||
    av_frame_free(&frame);
 | 
			
		||||
    avcodec_free_frame(&frame);
 | 
			
		||||
    printf("\n");
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
@@ -641,7 +626,7 @@ int main(int argc, char **argv)
 | 
			
		||||
               "This program generates a synthetic stream and encodes it to a file\n"
 | 
			
		||||
               "named test.h264, test.mp2 or test.mpg depending on output_type.\n"
 | 
			
		||||
               "The encoded stream is then decoded and written to a raw data output.\n"
 | 
			
		||||
               "output_type must be chosen between 'h264', 'mp2', 'mpg'.\n",
 | 
			
		||||
               "output_type must be choosen between 'h264', 'mp2', 'mpg'.\n",
 | 
			
		||||
               argv[0]);
 | 
			
		||||
        return 1;
 | 
			
		||||
    }
 | 
			
		||||
@@ -651,7 +636,7 @@ int main(int argc, char **argv)
 | 
			
		||||
        video_encode_example("test.h264", AV_CODEC_ID_H264);
 | 
			
		||||
    } else if (!strcmp(output_type, "mp2")) {
 | 
			
		||||
        audio_encode_example("test.mp2");
 | 
			
		||||
        audio_decode_example("test.pcm", "test.mp2");
 | 
			
		||||
        audio_decode_example("test.sw", "test.mp2");
 | 
			
		||||
    } else if (!strcmp(output_type, "mpg")) {
 | 
			
		||||
        video_encode_example("test.mpg", AV_CODEC_ID_MPEG1VIDEO);
 | 
			
		||||
        video_decode_example("test%02d.pgm", "test.mpg");
 | 
			
		||||
 
 | 
			
		||||
@@ -22,11 +22,11 @@
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * @file
 | 
			
		||||
 * Demuxing and decoding example.
 | 
			
		||||
 * libavformat demuxing API use example.
 | 
			
		||||
 *
 | 
			
		||||
 * Show how to use the libavformat and libavcodec API to demux and
 | 
			
		||||
 * decode audio and video data.
 | 
			
		||||
 * @example demuxing_decoding.c
 | 
			
		||||
 * @example doc/examples/demuxing.c
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
#include <libavutil/imgutils.h>
 | 
			
		||||
@@ -36,8 +36,6 @@
 | 
			
		||||
 | 
			
		||||
static AVFormatContext *fmt_ctx = NULL;
 | 
			
		||||
static AVCodecContext *video_dec_ctx = NULL, *audio_dec_ctx;
 | 
			
		||||
static int width, height;
 | 
			
		||||
static enum AVPixelFormat pix_fmt;
 | 
			
		||||
static AVStream *video_stream = NULL, *audio_stream = NULL;
 | 
			
		||||
static const char *src_filename = NULL;
 | 
			
		||||
static const char *video_dst_filename = NULL;
 | 
			
		||||
@@ -49,56 +47,29 @@ static uint8_t *video_dst_data[4] = {NULL};
 | 
			
		||||
static int      video_dst_linesize[4];
 | 
			
		||||
static int video_dst_bufsize;
 | 
			
		||||
 | 
			
		||||
static uint8_t **audio_dst_data = NULL;
 | 
			
		||||
static int       audio_dst_linesize;
 | 
			
		||||
static int audio_dst_bufsize;
 | 
			
		||||
 | 
			
		||||
static int video_stream_idx = -1, audio_stream_idx = -1;
 | 
			
		||||
static AVFrame *frame = NULL;
 | 
			
		||||
static AVPacket pkt;
 | 
			
		||||
static int video_frame_count = 0;
 | 
			
		||||
static int audio_frame_count = 0;
 | 
			
		||||
 | 
			
		||||
/* The different ways of decoding and managing data memory. You are not
 | 
			
		||||
 * supposed to support all the modes in your application but pick the one most
 | 
			
		||||
 * appropriate to your needs. Look for the use of api_mode in this example to
 | 
			
		||||
 * see what are the differences of API usage between them */
 | 
			
		||||
enum {
 | 
			
		||||
    API_MODE_OLD                  = 0, /* old method, deprecated */
 | 
			
		||||
    API_MODE_NEW_API_REF_COUNT    = 1, /* new method, using the frame reference counting */
 | 
			
		||||
    API_MODE_NEW_API_NO_REF_COUNT = 2, /* new method, without reference counting */
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
static int api_mode = API_MODE_OLD;
 | 
			
		||||
 | 
			
		||||
static int decode_packet(int *got_frame, int cached)
 | 
			
		||||
{
 | 
			
		||||
    int ret = 0;
 | 
			
		||||
    int decoded = pkt.size;
 | 
			
		||||
 | 
			
		||||
    *got_frame = 0;
 | 
			
		||||
 | 
			
		||||
    if (pkt.stream_index == video_stream_idx) {
 | 
			
		||||
        /* decode video frame */
 | 
			
		||||
        ret = avcodec_decode_video2(video_dec_ctx, frame, got_frame, &pkt);
 | 
			
		||||
        if (ret < 0) {
 | 
			
		||||
            fprintf(stderr, "Error decoding video frame (%s)\n", av_err2str(ret));
 | 
			
		||||
            fprintf(stderr, "Error decoding video frame\n");
 | 
			
		||||
            return ret;
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        if (*got_frame) {
 | 
			
		||||
 | 
			
		||||
            if (frame->width != width || frame->height != height ||
 | 
			
		||||
                frame->format != pix_fmt) {
 | 
			
		||||
                /* To handle this change, one could call av_image_alloc again and
 | 
			
		||||
                 * decode the following frames into another rawvideo file. */
 | 
			
		||||
                fprintf(stderr, "Error: Width, height and pixel format have to be "
 | 
			
		||||
                        "constant in a rawvideo file, but the width, height or "
 | 
			
		||||
                        "pixel format of the input video changed:\n"
 | 
			
		||||
                        "old: width = %d, height = %d, format = %s\n"
 | 
			
		||||
                        "new: width = %d, height = %d, format = %s\n",
 | 
			
		||||
                        width, height, av_get_pix_fmt_name(pix_fmt),
 | 
			
		||||
                        frame->width, frame->height,
 | 
			
		||||
                        av_get_pix_fmt_name(frame->format));
 | 
			
		||||
                return -1;
 | 
			
		||||
            }
 | 
			
		||||
 | 
			
		||||
            printf("video_frame%s n:%d coded_n:%d pts:%s\n",
 | 
			
		||||
                   cached ? "(cached)" : "",
 | 
			
		||||
                   video_frame_count++, frame->coded_picture_number,
 | 
			
		||||
@@ -108,7 +79,7 @@ static int decode_packet(int *got_frame, int cached)
 | 
			
		||||
             * this is required since rawvideo expects non aligned data */
 | 
			
		||||
            av_image_copy(video_dst_data, video_dst_linesize,
 | 
			
		||||
                          (const uint8_t **)(frame->data), frame->linesize,
 | 
			
		||||
                          pix_fmt, width, height);
 | 
			
		||||
                          video_dec_ctx->pix_fmt, video_dec_ctx->width, video_dec_ctx->height);
 | 
			
		||||
 | 
			
		||||
            /* write to rawvideo file */
 | 
			
		||||
            fwrite(video_dst_data[0], 1, video_dst_bufsize, video_dst_file);
 | 
			
		||||
@@ -117,50 +88,49 @@ static int decode_packet(int *got_frame, int cached)
 | 
			
		||||
        /* decode audio frame */
 | 
			
		||||
        ret = avcodec_decode_audio4(audio_dec_ctx, frame, got_frame, &pkt);
 | 
			
		||||
        if (ret < 0) {
 | 
			
		||||
            fprintf(stderr, "Error decoding audio frame (%s)\n", av_err2str(ret));
 | 
			
		||||
            fprintf(stderr, "Error decoding audio frame\n");
 | 
			
		||||
            return ret;
 | 
			
		||||
        }
 | 
			
		||||
        /* Some audio decoders decode only part of the packet, and have to be
 | 
			
		||||
         * called again with the remainder of the packet data.
 | 
			
		||||
         * Sample: fate-suite/lossless-audio/luckynight-partial.shn
 | 
			
		||||
         * Also, some decoders might over-read the packet. */
 | 
			
		||||
        decoded = FFMIN(ret, pkt.size);
 | 
			
		||||
 | 
			
		||||
        if (*got_frame) {
 | 
			
		||||
            size_t unpadded_linesize = frame->nb_samples * av_get_bytes_per_sample(frame->format);
 | 
			
		||||
            printf("audio_frame%s n:%d nb_samples:%d pts:%s\n",
 | 
			
		||||
                   cached ? "(cached)" : "",
 | 
			
		||||
                   audio_frame_count++, frame->nb_samples,
 | 
			
		||||
                   av_ts2timestr(frame->pts, &audio_dec_ctx->time_base));
 | 
			
		||||
 | 
			
		||||
            /* Write the raw audio data samples of the first plane. This works
 | 
			
		||||
             * fine for packed formats (e.g. AV_SAMPLE_FMT_S16). However,
 | 
			
		||||
             * most audio decoders output planar audio, which uses a separate
 | 
			
		||||
             * plane of audio samples for each channel (e.g. AV_SAMPLE_FMT_S16P).
 | 
			
		||||
             * In other words, this code will write only the first audio channel
 | 
			
		||||
             * in these cases.
 | 
			
		||||
             * You should use libswresample or libavfilter to convert the frame
 | 
			
		||||
             * to packed data. */
 | 
			
		||||
            fwrite(frame->extended_data[0], 1, unpadded_linesize, audio_dst_file);
 | 
			
		||||
            ret = av_samples_alloc(audio_dst_data, &audio_dst_linesize, av_frame_get_channels(frame),
 | 
			
		||||
                                   frame->nb_samples, frame->format, 1);
 | 
			
		||||
            if (ret < 0) {
 | 
			
		||||
                fprintf(stderr, "Could not allocate audio buffer\n");
 | 
			
		||||
                return AVERROR(ENOMEM);
 | 
			
		||||
            }
 | 
			
		||||
 | 
			
		||||
            /* TODO: extend return code of the av_samples_* functions so that this call is not needed */
 | 
			
		||||
            audio_dst_bufsize =
 | 
			
		||||
                av_samples_get_buffer_size(NULL, av_frame_get_channels(frame),
 | 
			
		||||
                                           frame->nb_samples, frame->format, 1);
 | 
			
		||||
 | 
			
		||||
            /* copy audio data to destination buffer:
 | 
			
		||||
             * this is required since rawaudio expects non aligned data */
 | 
			
		||||
            av_samples_copy(audio_dst_data, frame->data, 0, 0,
 | 
			
		||||
                            frame->nb_samples, av_frame_get_channels(frame), frame->format);
 | 
			
		||||
 | 
			
		||||
            /* write to rawaudio file */
 | 
			
		||||
            fwrite(audio_dst_data[0], 1, audio_dst_bufsize, audio_dst_file);
 | 
			
		||||
            av_freep(&audio_dst_data[0]);
 | 
			
		||||
        }
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* If we use the new API with reference counting, we own the data and need
 | 
			
		||||
     * to de-reference it when we don't use it anymore */
 | 
			
		||||
    if (*got_frame && api_mode == API_MODE_NEW_API_REF_COUNT)
 | 
			
		||||
        av_frame_unref(frame);
 | 
			
		||||
 | 
			
		||||
    return decoded;
 | 
			
		||||
    return ret;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static int open_codec_context(int *stream_idx,
 | 
			
		||||
                              AVFormatContext *fmt_ctx, enum AVMediaType type)
 | 
			
		||||
{
 | 
			
		||||
    int ret, stream_index;
 | 
			
		||||
    int ret;
 | 
			
		||||
    AVStream *st;
 | 
			
		||||
    AVCodecContext *dec_ctx = NULL;
 | 
			
		||||
    AVCodec *dec = NULL;
 | 
			
		||||
    AVDictionary *opts = NULL;
 | 
			
		||||
 | 
			
		||||
    ret = av_find_best_stream(fmt_ctx, type, -1, -1, NULL, 0);
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
@@ -168,8 +138,8 @@ static int open_codec_context(int *stream_idx,
 | 
			
		||||
                av_get_media_type_string(type), src_filename);
 | 
			
		||||
        return ret;
 | 
			
		||||
    } else {
 | 
			
		||||
        stream_index = ret;
 | 
			
		||||
        st = fmt_ctx->streams[stream_index];
 | 
			
		||||
        *stream_idx = ret;
 | 
			
		||||
        st = fmt_ctx->streams[*stream_idx];
 | 
			
		||||
 | 
			
		||||
        /* find decoder for the stream */
 | 
			
		||||
        dec_ctx = st->codec;
 | 
			
		||||
@@ -177,18 +147,14 @@ static int open_codec_context(int *stream_idx,
 | 
			
		||||
        if (!dec) {
 | 
			
		||||
            fprintf(stderr, "Failed to find %s codec\n",
 | 
			
		||||
                    av_get_media_type_string(type));
 | 
			
		||||
            return AVERROR(EINVAL);
 | 
			
		||||
            return ret;
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        /* Init the decoders, with or without reference counting */
 | 
			
		||||
        if (api_mode == API_MODE_NEW_API_REF_COUNT)
 | 
			
		||||
            av_dict_set(&opts, "refcounted_frames", "1", 0);
 | 
			
		||||
        if ((ret = avcodec_open2(dec_ctx, dec, &opts)) < 0) {
 | 
			
		||||
        if ((ret = avcodec_open2(dec_ctx, dec, NULL)) < 0) {
 | 
			
		||||
            fprintf(stderr, "Failed to open %s codec\n",
 | 
			
		||||
                    av_get_media_type_string(type));
 | 
			
		||||
            return ret;
 | 
			
		||||
        }
 | 
			
		||||
        *stream_idx = stream_index;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    return 0;
 | 
			
		||||
@@ -227,31 +193,15 @@ int main (int argc, char **argv)
 | 
			
		||||
{
 | 
			
		||||
    int ret = 0, got_frame;
 | 
			
		||||
 | 
			
		||||
    if (argc != 4 && argc != 5) {
 | 
			
		||||
        fprintf(stderr, "usage: %s [-refcount=<old|new_norefcount|new_refcount>] "
 | 
			
		||||
                "input_file video_output_file audio_output_file\n"
 | 
			
		||||
    if (argc != 4) {
 | 
			
		||||
        fprintf(stderr, "usage: %s input_file video_output_file audio_output_file\n"
 | 
			
		||||
                "API example program to show how to read frames from an input file.\n"
 | 
			
		||||
                "This program reads frames from a file, decodes them, and writes decoded\n"
 | 
			
		||||
                "video frames to a rawvideo file named video_output_file, and decoded\n"
 | 
			
		||||
                "audio frames to a rawaudio file named audio_output_file.\n\n"
 | 
			
		||||
                "If the -refcount option is specified, the program use the\n"
 | 
			
		||||
                "reference counting frame system which allows keeping a copy of\n"
 | 
			
		||||
                "the data for longer than one decode call. If unset, it's using\n"
 | 
			
		||||
                "the classic old method.\n"
 | 
			
		||||
                "audio frames to a rawaudio file named audio_output_file.\n"
 | 
			
		||||
                "\n", argv[0]);
 | 
			
		||||
        exit(1);
 | 
			
		||||
    }
 | 
			
		||||
    if (argc == 5) {
 | 
			
		||||
        const char *mode = argv[1] + strlen("-refcount=");
 | 
			
		||||
        if      (!strcmp(mode, "old"))            api_mode = API_MODE_OLD;
 | 
			
		||||
        else if (!strcmp(mode, "new_norefcount")) api_mode = API_MODE_NEW_API_NO_REF_COUNT;
 | 
			
		||||
        else if (!strcmp(mode, "new_refcount"))   api_mode = API_MODE_NEW_API_REF_COUNT;
 | 
			
		||||
        else {
 | 
			
		||||
            fprintf(stderr, "unknow mode '%s'\n", mode);
 | 
			
		||||
            exit(1);
 | 
			
		||||
        }
 | 
			
		||||
        argv++;
 | 
			
		||||
    }
 | 
			
		||||
    src_filename = argv[1];
 | 
			
		||||
    video_dst_filename = argv[2];
 | 
			
		||||
    audio_dst_filename = argv[3];
 | 
			
		||||
@@ -283,11 +233,9 @@ int main (int argc, char **argv)
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        /* allocate image where the decoded image will be put */
 | 
			
		||||
        width = video_dec_ctx->width;
 | 
			
		||||
        height = video_dec_ctx->height;
 | 
			
		||||
        pix_fmt = video_dec_ctx->pix_fmt;
 | 
			
		||||
        ret = av_image_alloc(video_dst_data, video_dst_linesize,
 | 
			
		||||
                             width, height, pix_fmt, 1);
 | 
			
		||||
                             video_dec_ctx->width, video_dec_ctx->height,
 | 
			
		||||
                             video_dec_ctx->pix_fmt, 1);
 | 
			
		||||
        if (ret < 0) {
 | 
			
		||||
            fprintf(stderr, "Could not allocate raw video buffer\n");
 | 
			
		||||
            goto end;
 | 
			
		||||
@@ -296,14 +244,25 @@ int main (int argc, char **argv)
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    if (open_codec_context(&audio_stream_idx, fmt_ctx, AVMEDIA_TYPE_AUDIO) >= 0) {
 | 
			
		||||
        int nb_planes;
 | 
			
		||||
 | 
			
		||||
        audio_stream = fmt_ctx->streams[audio_stream_idx];
 | 
			
		||||
        audio_dec_ctx = audio_stream->codec;
 | 
			
		||||
        audio_dst_file = fopen(audio_dst_filename, "wb");
 | 
			
		||||
        if (!audio_dst_file) {
 | 
			
		||||
            fprintf(stderr, "Could not open destination file %s\n", audio_dst_filename);
 | 
			
		||||
            fprintf(stderr, "Could not open destination file %s\n", video_dst_filename);
 | 
			
		||||
            ret = 1;
 | 
			
		||||
            goto end;
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        nb_planes = av_sample_fmt_is_planar(audio_dec_ctx->sample_fmt) ?
 | 
			
		||||
            audio_dec_ctx->channels : 1;
 | 
			
		||||
        audio_dst_data = av_mallocz(sizeof(uint8_t *) * nb_planes);
 | 
			
		||||
        if (!audio_dst_data) {
 | 
			
		||||
            fprintf(stderr, "Could not allocate audio data buffers\n");
 | 
			
		||||
            ret = AVERROR(ENOMEM);
 | 
			
		||||
            goto end;
 | 
			
		||||
        }
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* dump input information to stderr */
 | 
			
		||||
@@ -315,12 +274,7 @@ int main (int argc, char **argv)
 | 
			
		||||
        goto end;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* When using the new API, you need to use the libavutil/frame.h API, while
 | 
			
		||||
     * the classic frame management is available in libavcodec */
 | 
			
		||||
    if (api_mode == API_MODE_OLD)
 | 
			
		||||
    frame = avcodec_alloc_frame();
 | 
			
		||||
    else
 | 
			
		||||
        frame = av_frame_alloc();
 | 
			
		||||
    if (!frame) {
 | 
			
		||||
        fprintf(stderr, "Could not allocate frame\n");
 | 
			
		||||
        ret = AVERROR(ENOMEM);
 | 
			
		||||
@@ -339,15 +293,8 @@ int main (int argc, char **argv)
 | 
			
		||||
 | 
			
		||||
    /* read frames from the file */
 | 
			
		||||
    while (av_read_frame(fmt_ctx, &pkt) >= 0) {
 | 
			
		||||
        AVPacket orig_pkt = pkt;
 | 
			
		||||
        do {
 | 
			
		||||
            ret = decode_packet(&got_frame, 0);
 | 
			
		||||
            if (ret < 0)
 | 
			
		||||
                break;
 | 
			
		||||
            pkt.data += ret;
 | 
			
		||||
            pkt.size -= ret;
 | 
			
		||||
        } while (pkt.size > 0);
 | 
			
		||||
        av_free_packet(&orig_pkt);
 | 
			
		||||
        decode_packet(&got_frame, 0);
 | 
			
		||||
        av_free_packet(&pkt);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* flush cached frames */
 | 
			
		||||
@@ -362,46 +309,34 @@ int main (int argc, char **argv)
 | 
			
		||||
    if (video_stream) {
 | 
			
		||||
        printf("Play the output video file with the command:\n"
 | 
			
		||||
               "ffplay -f rawvideo -pix_fmt %s -video_size %dx%d %s\n",
 | 
			
		||||
               av_get_pix_fmt_name(pix_fmt), width, height,
 | 
			
		||||
               av_get_pix_fmt_name(video_dec_ctx->pix_fmt), video_dec_ctx->width, video_dec_ctx->height,
 | 
			
		||||
               video_dst_filename);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    if (audio_stream) {
 | 
			
		||||
        enum AVSampleFormat sfmt = audio_dec_ctx->sample_fmt;
 | 
			
		||||
        int n_channels = audio_dec_ctx->channels;
 | 
			
		||||
        const char *fmt;
 | 
			
		||||
 | 
			
		||||
        if (av_sample_fmt_is_planar(sfmt)) {
 | 
			
		||||
            const char *packed = av_get_sample_fmt_name(sfmt);
 | 
			
		||||
            printf("Warning: the sample format the decoder produced is planar "
 | 
			
		||||
                   "(%s). This example will output the first channel only.\n",
 | 
			
		||||
                   packed ? packed : "?");
 | 
			
		||||
            sfmt = av_get_packed_sample_fmt(sfmt);
 | 
			
		||||
            n_channels = 1;
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        if ((ret = get_format_from_sample_fmt(&fmt, sfmt)) < 0)
 | 
			
		||||
        if ((ret = get_format_from_sample_fmt(&fmt, audio_dec_ctx->sample_fmt)) < 0)
 | 
			
		||||
            goto end;
 | 
			
		||||
 | 
			
		||||
        printf("Play the output audio file with the command:\n"
 | 
			
		||||
               "ffplay -f %s -ac %d -ar %d %s\n",
 | 
			
		||||
               fmt, n_channels, audio_dec_ctx->sample_rate,
 | 
			
		||||
               fmt, audio_dec_ctx->channels, audio_dec_ctx->sample_rate,
 | 
			
		||||
               audio_dst_filename);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
end:
 | 
			
		||||
    if (video_dec_ctx)
 | 
			
		||||
        avcodec_close(video_dec_ctx);
 | 
			
		||||
    if (audio_dec_ctx)
 | 
			
		||||
        avcodec_close(audio_dec_ctx);
 | 
			
		||||
    avformat_close_input(&fmt_ctx);
 | 
			
		||||
    if (video_dst_file)
 | 
			
		||||
        fclose(video_dst_file);
 | 
			
		||||
    if (audio_dst_file)
 | 
			
		||||
        fclose(audio_dst_file);
 | 
			
		||||
    if (api_mode == API_MODE_OLD)
 | 
			
		||||
        avcodec_free_frame(&frame);
 | 
			
		||||
    else
 | 
			
		||||
        av_frame_free(&frame);
 | 
			
		||||
    av_free(frame);
 | 
			
		||||
    av_free(video_dst_data[0]);
 | 
			
		||||
    av_free(audio_dst_data);
 | 
			
		||||
 | 
			
		||||
    return ret < 0;
 | 
			
		||||
}
 | 
			
		||||
@@ -1,185 +0,0 @@
 | 
			
		||||
/*
 | 
			
		||||
 * Copyright (c) 2012 Stefano Sabatini
 | 
			
		||||
 * Copyright (c) 2014 Clément Bœsch
 | 
			
		||||
 *
 | 
			
		||||
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 | 
			
		||||
 * of this software and associated documentation files (the "Software"), to deal
 | 
			
		||||
 * in the Software without restriction, including without limitation the rights
 | 
			
		||||
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 | 
			
		||||
 * copies of the Software, and to permit persons to whom the Software is
 | 
			
		||||
 * furnished to do so, subject to the following conditions:
 | 
			
		||||
 *
 | 
			
		||||
 * The above copyright notice and this permission notice shall be included in
 | 
			
		||||
 * all copies or substantial portions of the Software.
 | 
			
		||||
 *
 | 
			
		||||
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 | 
			
		||||
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 | 
			
		||||
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 | 
			
		||||
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 | 
			
		||||
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 | 
			
		||||
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 | 
			
		||||
 * THE SOFTWARE.
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
#include <libavutil/motion_vector.h>
 | 
			
		||||
#include <libavformat/avformat.h>
 | 
			
		||||
 | 
			
		||||
static AVFormatContext *fmt_ctx = NULL;
 | 
			
		||||
static AVCodecContext *video_dec_ctx = NULL;
 | 
			
		||||
static AVStream *video_stream = NULL;
 | 
			
		||||
static const char *src_filename = NULL;
 | 
			
		||||
 | 
			
		||||
static int video_stream_idx = -1;
 | 
			
		||||
static AVFrame *frame = NULL;
 | 
			
		||||
static AVPacket pkt;
 | 
			
		||||
static int video_frame_count = 0;
 | 
			
		||||
 | 
			
		||||
static int decode_packet(int *got_frame, int cached)
 | 
			
		||||
{
 | 
			
		||||
    int decoded = pkt.size;
 | 
			
		||||
 | 
			
		||||
    *got_frame = 0;
 | 
			
		||||
 | 
			
		||||
    if (pkt.stream_index == video_stream_idx) {
 | 
			
		||||
        int ret = avcodec_decode_video2(video_dec_ctx, frame, got_frame, &pkt);
 | 
			
		||||
        if (ret < 0) {
 | 
			
		||||
            fprintf(stderr, "Error decoding video frame (%s)\n", av_err2str(ret));
 | 
			
		||||
            return ret;
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        if (*got_frame) {
 | 
			
		||||
            int i;
 | 
			
		||||
            AVFrameSideData *sd;
 | 
			
		||||
 | 
			
		||||
            video_frame_count++;
 | 
			
		||||
            sd = av_frame_get_side_data(frame, AV_FRAME_DATA_MOTION_VECTORS);
 | 
			
		||||
            if (sd) {
 | 
			
		||||
                const AVMotionVector *mvs = (const AVMotionVector *)sd->data;
 | 
			
		||||
                for (i = 0; i < sd->size / sizeof(*mvs); i++) {
 | 
			
		||||
                    const AVMotionVector *mv = &mvs[i];
 | 
			
		||||
                    printf("%d,%2d,%2d,%2d,%4d,%4d,%4d,%4d,0x%"PRIx64"\n",
 | 
			
		||||
                           video_frame_count, mv->source,
 | 
			
		||||
                           mv->w, mv->h, mv->src_x, mv->src_y,
 | 
			
		||||
                           mv->dst_x, mv->dst_y, mv->flags);
 | 
			
		||||
                }
 | 
			
		||||
            }
 | 
			
		||||
        }
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    return decoded;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static int open_codec_context(int *stream_idx,
 | 
			
		||||
                              AVFormatContext *fmt_ctx, enum AVMediaType type)
 | 
			
		||||
{
 | 
			
		||||
    int ret;
 | 
			
		||||
    AVStream *st;
 | 
			
		||||
    AVCodecContext *dec_ctx = NULL;
 | 
			
		||||
    AVCodec *dec = NULL;
 | 
			
		||||
    AVDictionary *opts = NULL;
 | 
			
		||||
 | 
			
		||||
    ret = av_find_best_stream(fmt_ctx, type, -1, -1, NULL, 0);
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
        fprintf(stderr, "Could not find %s stream in input file '%s'\n",
 | 
			
		||||
                av_get_media_type_string(type), src_filename);
 | 
			
		||||
        return ret;
 | 
			
		||||
    } else {
 | 
			
		||||
        *stream_idx = ret;
 | 
			
		||||
        st = fmt_ctx->streams[*stream_idx];
 | 
			
		||||
 | 
			
		||||
        /* find decoder for the stream */
 | 
			
		||||
        dec_ctx = st->codec;
 | 
			
		||||
        dec = avcodec_find_decoder(dec_ctx->codec_id);
 | 
			
		||||
        if (!dec) {
 | 
			
		||||
            fprintf(stderr, "Failed to find %s codec\n",
 | 
			
		||||
                    av_get_media_type_string(type));
 | 
			
		||||
            return AVERROR(EINVAL);
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        /* Init the video decoder */
 | 
			
		||||
        av_dict_set(&opts, "flags2", "+export_mvs", 0);
 | 
			
		||||
        if ((ret = avcodec_open2(dec_ctx, dec, &opts)) < 0) {
 | 
			
		||||
            fprintf(stderr, "Failed to open %s codec\n",
 | 
			
		||||
                    av_get_media_type_string(type));
 | 
			
		||||
            return ret;
 | 
			
		||||
        }
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
int main(int argc, char **argv)
 | 
			
		||||
{
 | 
			
		||||
    int ret = 0, got_frame;
 | 
			
		||||
 | 
			
		||||
    if (argc != 2) {
 | 
			
		||||
        fprintf(stderr, "Usage: %s <video>\n", argv[0]);
 | 
			
		||||
        exit(1);
 | 
			
		||||
    }
 | 
			
		||||
    src_filename = argv[1];
 | 
			
		||||
 | 
			
		||||
    av_register_all();
 | 
			
		||||
 | 
			
		||||
    if (avformat_open_input(&fmt_ctx, src_filename, NULL, NULL) < 0) {
 | 
			
		||||
        fprintf(stderr, "Could not open source file %s\n", src_filename);
 | 
			
		||||
        exit(1);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    if (avformat_find_stream_info(fmt_ctx, NULL) < 0) {
 | 
			
		||||
        fprintf(stderr, "Could not find stream information\n");
 | 
			
		||||
        exit(1);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    if (open_codec_context(&video_stream_idx, fmt_ctx, AVMEDIA_TYPE_VIDEO) >= 0) {
 | 
			
		||||
        video_stream = fmt_ctx->streams[video_stream_idx];
 | 
			
		||||
        video_dec_ctx = video_stream->codec;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    av_dump_format(fmt_ctx, 0, src_filename, 0);
 | 
			
		||||
 | 
			
		||||
    if (!video_stream) {
 | 
			
		||||
        fprintf(stderr, "Could not find video stream in the input, aborting\n");
 | 
			
		||||
        ret = 1;
 | 
			
		||||
        goto end;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    frame = av_frame_alloc();
 | 
			
		||||
    if (!frame) {
 | 
			
		||||
        fprintf(stderr, "Could not allocate frame\n");
 | 
			
		||||
        ret = AVERROR(ENOMEM);
 | 
			
		||||
        goto end;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    printf("framenum,source,blockw,blockh,srcx,srcy,dstx,dsty,flags\n");
 | 
			
		||||
 | 
			
		||||
    /* initialize packet, set data to NULL, let the demuxer fill it */
 | 
			
		||||
    av_init_packet(&pkt);
 | 
			
		||||
    pkt.data = NULL;
 | 
			
		||||
    pkt.size = 0;
 | 
			
		||||
 | 
			
		||||
    /* read frames from the file */
 | 
			
		||||
    while (av_read_frame(fmt_ctx, &pkt) >= 0) {
 | 
			
		||||
        AVPacket orig_pkt = pkt;
 | 
			
		||||
        do {
 | 
			
		||||
            ret = decode_packet(&got_frame, 0);
 | 
			
		||||
            if (ret < 0)
 | 
			
		||||
                break;
 | 
			
		||||
            pkt.data += ret;
 | 
			
		||||
            pkt.size -= ret;
 | 
			
		||||
        } while (pkt.size > 0);
 | 
			
		||||
        av_free_packet(&orig_pkt);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* flush cached frames */
 | 
			
		||||
    pkt.data = NULL;
 | 
			
		||||
    pkt.size = 0;
 | 
			
		||||
    do {
 | 
			
		||||
        decode_packet(&got_frame, 1);
 | 
			
		||||
    } while (got_frame);
 | 
			
		||||
 | 
			
		||||
end:
 | 
			
		||||
    avcodec_close(video_dec_ctx);
 | 
			
		||||
    avformat_close_input(&fmt_ctx);
 | 
			
		||||
    av_frame_free(&frame);
 | 
			
		||||
    return ret < 0;
 | 
			
		||||
}
 | 
			
		||||
@@ -1,365 +0,0 @@
 | 
			
		||||
/*
 | 
			
		||||
 * copyright (c) 2013 Andrew Kelley
 | 
			
		||||
 *
 | 
			
		||||
 * This file is part of FFmpeg.
 | 
			
		||||
 *
 | 
			
		||||
 * FFmpeg is free software; you can redistribute it and/or
 | 
			
		||||
 * modify it under the terms of the GNU Lesser General Public
 | 
			
		||||
 * License as published by the Free Software Foundation; either
 | 
			
		||||
 * version 2.1 of the License, or (at your option) any later version.
 | 
			
		||||
 *
 | 
			
		||||
 * FFmpeg is distributed in the hope that it will be useful,
 | 
			
		||||
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 | 
			
		||||
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 | 
			
		||||
 * Lesser General Public License for more details.
 | 
			
		||||
 *
 | 
			
		||||
 * You should have received a copy of the GNU Lesser General Public
 | 
			
		||||
 * License along with FFmpeg; if not, write to the Free Software
 | 
			
		||||
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * @file
 | 
			
		||||
 * libavfilter API usage example.
 | 
			
		||||
 *
 | 
			
		||||
 * @example filter_audio.c
 | 
			
		||||
 * This example will generate a sine wave audio,
 | 
			
		||||
 * pass it through a simple filter chain, and then compute the MD5 checksum of
 | 
			
		||||
 * the output data.
 | 
			
		||||
 *
 | 
			
		||||
 * The filter chain it uses is:
 | 
			
		||||
 * (input) -> abuffer -> volume -> aformat -> abuffersink -> (output)
 | 
			
		||||
 *
 | 
			
		||||
 * abuffer: This provides the endpoint where you can feed the decoded samples.
 | 
			
		||||
 * volume: In this example we hardcode it to 0.90.
 | 
			
		||||
 * aformat: This converts the samples to the samplefreq, channel layout,
 | 
			
		||||
 *          and sample format required by the audio device.
 | 
			
		||||
 * abuffersink: This provides the endpoint where you can read the samples after
 | 
			
		||||
 *              they have passed through the filter chain.
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
#include <inttypes.h>
 | 
			
		||||
#include <math.h>
 | 
			
		||||
#include <stdio.h>
 | 
			
		||||
#include <stdlib.h>
 | 
			
		||||
 | 
			
		||||
#include "libavutil/channel_layout.h"
 | 
			
		||||
#include "libavutil/md5.h"
 | 
			
		||||
#include "libavutil/mem.h"
 | 
			
		||||
#include "libavutil/opt.h"
 | 
			
		||||
#include "libavutil/samplefmt.h"
 | 
			
		||||
 | 
			
		||||
#include "libavfilter/avfilter.h"
 | 
			
		||||
#include "libavfilter/buffersink.h"
 | 
			
		||||
#include "libavfilter/buffersrc.h"
 | 
			
		||||
 | 
			
		||||
#define INPUT_SAMPLERATE     48000
 | 
			
		||||
#define INPUT_FORMAT         AV_SAMPLE_FMT_FLTP
 | 
			
		||||
#define INPUT_CHANNEL_LAYOUT AV_CH_LAYOUT_5POINT0
 | 
			
		||||
 | 
			
		||||
#define VOLUME_VAL 0.90
 | 
			
		||||
 | 
			
		||||
static int init_filter_graph(AVFilterGraph **graph, AVFilterContext **src,
 | 
			
		||||
                             AVFilterContext **sink)
 | 
			
		||||
{
 | 
			
		||||
    AVFilterGraph *filter_graph;
 | 
			
		||||
    AVFilterContext *abuffer_ctx;
 | 
			
		||||
    AVFilter        *abuffer;
 | 
			
		||||
    AVFilterContext *volume_ctx;
 | 
			
		||||
    AVFilter        *volume;
 | 
			
		||||
    AVFilterContext *aformat_ctx;
 | 
			
		||||
    AVFilter        *aformat;
 | 
			
		||||
    AVFilterContext *abuffersink_ctx;
 | 
			
		||||
    AVFilter        *abuffersink;
 | 
			
		||||
 | 
			
		||||
    AVDictionary *options_dict = NULL;
 | 
			
		||||
    uint8_t options_str[1024];
 | 
			
		||||
    uint8_t ch_layout[64];
 | 
			
		||||
 | 
			
		||||
    int err;
 | 
			
		||||
 | 
			
		||||
    /* Create a new filtergraph, which will contain all the filters. */
 | 
			
		||||
    filter_graph = avfilter_graph_alloc();
 | 
			
		||||
    if (!filter_graph) {
 | 
			
		||||
        fprintf(stderr, "Unable to create filter graph.\n");
 | 
			
		||||
        return AVERROR(ENOMEM);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* Create the abuffer filter;
 | 
			
		||||
     * it will be used for feeding the data into the graph. */
 | 
			
		||||
    abuffer = avfilter_get_by_name("abuffer");
 | 
			
		||||
    if (!abuffer) {
 | 
			
		||||
        fprintf(stderr, "Could not find the abuffer filter.\n");
 | 
			
		||||
        return AVERROR_FILTER_NOT_FOUND;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    abuffer_ctx = avfilter_graph_alloc_filter(filter_graph, abuffer, "src");
 | 
			
		||||
    if (!abuffer_ctx) {
 | 
			
		||||
        fprintf(stderr, "Could not allocate the abuffer instance.\n");
 | 
			
		||||
        return AVERROR(ENOMEM);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* Set the filter options through the AVOptions API. */
 | 
			
		||||
    av_get_channel_layout_string(ch_layout, sizeof(ch_layout), 0, INPUT_CHANNEL_LAYOUT);
 | 
			
		||||
    av_opt_set    (abuffer_ctx, "channel_layout", ch_layout,                            AV_OPT_SEARCH_CHILDREN);
 | 
			
		||||
    av_opt_set    (abuffer_ctx, "sample_fmt",     av_get_sample_fmt_name(INPUT_FORMAT), AV_OPT_SEARCH_CHILDREN);
 | 
			
		||||
    av_opt_set_q  (abuffer_ctx, "time_base",      (AVRational){ 1, INPUT_SAMPLERATE },  AV_OPT_SEARCH_CHILDREN);
 | 
			
		||||
    av_opt_set_int(abuffer_ctx, "sample_rate",    INPUT_SAMPLERATE,                     AV_OPT_SEARCH_CHILDREN);
 | 
			
		||||
 | 
			
		||||
    /* Now initialize the filter; we pass NULL options, since we have already
 | 
			
		||||
     * set all the options above. */
 | 
			
		||||
    err = avfilter_init_str(abuffer_ctx, NULL);
 | 
			
		||||
    if (err < 0) {
 | 
			
		||||
        fprintf(stderr, "Could not initialize the abuffer filter.\n");
 | 
			
		||||
        return err;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* Create volume filter. */
 | 
			
		||||
    volume = avfilter_get_by_name("volume");
 | 
			
		||||
    if (!volume) {
 | 
			
		||||
        fprintf(stderr, "Could not find the volume filter.\n");
 | 
			
		||||
        return AVERROR_FILTER_NOT_FOUND;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    volume_ctx = avfilter_graph_alloc_filter(filter_graph, volume, "volume");
 | 
			
		||||
    if (!volume_ctx) {
 | 
			
		||||
        fprintf(stderr, "Could not allocate the volume instance.\n");
 | 
			
		||||
        return AVERROR(ENOMEM);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* A different way of passing the options is as key/value pairs in a
 | 
			
		||||
     * dictionary. */
 | 
			
		||||
    av_dict_set(&options_dict, "volume", AV_STRINGIFY(VOLUME_VAL), 0);
 | 
			
		||||
    err = avfilter_init_dict(volume_ctx, &options_dict);
 | 
			
		||||
    av_dict_free(&options_dict);
 | 
			
		||||
    if (err < 0) {
 | 
			
		||||
        fprintf(stderr, "Could not initialize the volume filter.\n");
 | 
			
		||||
        return err;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* Create the aformat filter;
 | 
			
		||||
     * it ensures that the output is of the format we want. */
 | 
			
		||||
    aformat = avfilter_get_by_name("aformat");
 | 
			
		||||
    if (!aformat) {
 | 
			
		||||
        fprintf(stderr, "Could not find the aformat filter.\n");
 | 
			
		||||
        return AVERROR_FILTER_NOT_FOUND;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    aformat_ctx = avfilter_graph_alloc_filter(filter_graph, aformat, "aformat");
 | 
			
		||||
    if (!aformat_ctx) {
 | 
			
		||||
        fprintf(stderr, "Could not allocate the aformat instance.\n");
 | 
			
		||||
        return AVERROR(ENOMEM);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* A third way of passing the options is in a string of the form
 | 
			
		||||
     * key1=value1:key2=value2.... */
 | 
			
		||||
    snprintf(options_str, sizeof(options_str),
 | 
			
		||||
             "sample_fmts=%s:sample_rates=%d:channel_layouts=0x%"PRIx64,
 | 
			
		||||
             av_get_sample_fmt_name(AV_SAMPLE_FMT_S16), 44100,
 | 
			
		||||
             (uint64_t)AV_CH_LAYOUT_STEREO);
 | 
			
		||||
    err = avfilter_init_str(aformat_ctx, options_str);
 | 
			
		||||
    if (err < 0) {
 | 
			
		||||
        av_log(NULL, AV_LOG_ERROR, "Could not initialize the aformat filter.\n");
 | 
			
		||||
        return err;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* Finally create the abuffersink filter;
 | 
			
		||||
     * it will be used to get the filtered data out of the graph. */
 | 
			
		||||
    abuffersink = avfilter_get_by_name("abuffersink");
 | 
			
		||||
    if (!abuffersink) {
 | 
			
		||||
        fprintf(stderr, "Could not find the abuffersink filter.\n");
 | 
			
		||||
        return AVERROR_FILTER_NOT_FOUND;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    abuffersink_ctx = avfilter_graph_alloc_filter(filter_graph, abuffersink, "sink");
 | 
			
		||||
    if (!abuffersink_ctx) {
 | 
			
		||||
        fprintf(stderr, "Could not allocate the abuffersink instance.\n");
 | 
			
		||||
        return AVERROR(ENOMEM);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* This filter takes no options. */
 | 
			
		||||
    err = avfilter_init_str(abuffersink_ctx, NULL);
 | 
			
		||||
    if (err < 0) {
 | 
			
		||||
        fprintf(stderr, "Could not initialize the abuffersink instance.\n");
 | 
			
		||||
        return err;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* Connect the filters;
 | 
			
		||||
     * in this simple case the filters just form a linear chain. */
 | 
			
		||||
    err = avfilter_link(abuffer_ctx, 0, volume_ctx, 0);
 | 
			
		||||
    if (err >= 0)
 | 
			
		||||
        err = avfilter_link(volume_ctx, 0, aformat_ctx, 0);
 | 
			
		||||
    if (err >= 0)
 | 
			
		||||
        err = avfilter_link(aformat_ctx, 0, abuffersink_ctx, 0);
 | 
			
		||||
    if (err < 0) {
 | 
			
		||||
        fprintf(stderr, "Error connecting filters\n");
 | 
			
		||||
        return err;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* Configure the graph. */
 | 
			
		||||
    err = avfilter_graph_config(filter_graph, NULL);
 | 
			
		||||
    if (err < 0) {
 | 
			
		||||
        av_log(NULL, AV_LOG_ERROR, "Error configuring the filter graph\n");
 | 
			
		||||
        return err;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    *graph = filter_graph;
 | 
			
		||||
    *src   = abuffer_ctx;
 | 
			
		||||
    *sink  = abuffersink_ctx;
 | 
			
		||||
 | 
			
		||||
    return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/* Do something useful with the filtered data: this simple
 | 
			
		||||
 * example just prints the MD5 checksum of each plane to stdout. */
 | 
			
		||||
static int process_output(struct AVMD5 *md5, AVFrame *frame)
 | 
			
		||||
{
 | 
			
		||||
    int planar     = av_sample_fmt_is_planar(frame->format);
 | 
			
		||||
    int channels   = av_get_channel_layout_nb_channels(frame->channel_layout);
 | 
			
		||||
    int planes     = planar ? channels : 1;
 | 
			
		||||
    int bps        = av_get_bytes_per_sample(frame->format);
 | 
			
		||||
    int plane_size = bps * frame->nb_samples * (planar ? 1 : channels);
 | 
			
		||||
    int i, j;
 | 
			
		||||
 | 
			
		||||
    for (i = 0; i < planes; i++) {
 | 
			
		||||
        uint8_t checksum[16];
 | 
			
		||||
 | 
			
		||||
        av_md5_init(md5);
 | 
			
		||||
        av_md5_sum(checksum, frame->extended_data[i], plane_size);
 | 
			
		||||
 | 
			
		||||
        fprintf(stdout, "plane %d: 0x", i);
 | 
			
		||||
        for (j = 0; j < sizeof(checksum); j++)
 | 
			
		||||
            fprintf(stdout, "%02X", checksum[j]);
 | 
			
		||||
        fprintf(stdout, "\n");
 | 
			
		||||
    }
 | 
			
		||||
    fprintf(stdout, "\n");
 | 
			
		||||
 | 
			
		||||
    return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/* Construct a frame of audio data to be filtered;
 | 
			
		||||
 * this simple example just synthesizes a sine wave. */
 | 
			
		||||
static int get_input(AVFrame *frame, int frame_num)
 | 
			
		||||
{
 | 
			
		||||
    int err, i, j;
 | 
			
		||||
 | 
			
		||||
#define FRAME_SIZE 1024
 | 
			
		||||
 | 
			
		||||
    /* Set up the frame properties and allocate the buffer for the data. */
 | 
			
		||||
    frame->sample_rate    = INPUT_SAMPLERATE;
 | 
			
		||||
    frame->format         = INPUT_FORMAT;
 | 
			
		||||
    frame->channel_layout = INPUT_CHANNEL_LAYOUT;
 | 
			
		||||
    frame->nb_samples     = FRAME_SIZE;
 | 
			
		||||
    frame->pts            = frame_num * FRAME_SIZE;
 | 
			
		||||
 | 
			
		||||
    err = av_frame_get_buffer(frame, 0);
 | 
			
		||||
    if (err < 0)
 | 
			
		||||
        return err;
 | 
			
		||||
 | 
			
		||||
    /* Fill the data for each channel. */
 | 
			
		||||
    for (i = 0; i < 5; i++) {
 | 
			
		||||
        float *data = (float*)frame->extended_data[i];
 | 
			
		||||
 | 
			
		||||
        for (j = 0; j < frame->nb_samples; j++)
 | 
			
		||||
            data[j] = sin(2 * M_PI * (frame_num + j) * (i + 1) / FRAME_SIZE);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
int main(int argc, char *argv[])
 | 
			
		||||
{
 | 
			
		||||
    struct AVMD5 *md5;
 | 
			
		||||
    AVFilterGraph *graph;
 | 
			
		||||
    AVFilterContext *src, *sink;
 | 
			
		||||
    AVFrame *frame;
 | 
			
		||||
    uint8_t errstr[1024];
 | 
			
		||||
    float duration;
 | 
			
		||||
    int err, nb_frames, i;
 | 
			
		||||
 | 
			
		||||
    if (argc < 2) {
 | 
			
		||||
        fprintf(stderr, "Usage: %s <duration>\n", argv[0]);
 | 
			
		||||
        return 1;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    duration  = atof(argv[1]);
 | 
			
		||||
    nb_frames = duration * INPUT_SAMPLERATE / FRAME_SIZE;
 | 
			
		||||
    if (nb_frames <= 0) {
 | 
			
		||||
        fprintf(stderr, "Invalid duration: %s\n", argv[1]);
 | 
			
		||||
        return 1;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    avfilter_register_all();
 | 
			
		||||
 | 
			
		||||
    /* Allocate the frame we will be using to store the data. */
 | 
			
		||||
    frame  = av_frame_alloc();
 | 
			
		||||
    if (!frame) {
 | 
			
		||||
        fprintf(stderr, "Error allocating the frame\n");
 | 
			
		||||
        return 1;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    md5 = av_md5_alloc();
 | 
			
		||||
    if (!md5) {
 | 
			
		||||
        fprintf(stderr, "Error allocating the MD5 context\n");
 | 
			
		||||
        return 1;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* Set up the filtergraph. */
 | 
			
		||||
    err = init_filter_graph(&graph, &src, &sink);
 | 
			
		||||
    if (err < 0) {
 | 
			
		||||
        fprintf(stderr, "Unable to init filter graph:");
 | 
			
		||||
        goto fail;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* the main filtering loop */
 | 
			
		||||
    for (i = 0; i < nb_frames; i++) {
 | 
			
		||||
        /* get an input frame to be filtered */
 | 
			
		||||
        err = get_input(frame, i);
 | 
			
		||||
        if (err < 0) {
 | 
			
		||||
            fprintf(stderr, "Error generating input frame:");
 | 
			
		||||
            goto fail;
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        /* Send the frame to the input of the filtergraph. */
 | 
			
		||||
        err = av_buffersrc_add_frame(src, frame);
 | 
			
		||||
        if (err < 0) {
 | 
			
		||||
            av_frame_unref(frame);
 | 
			
		||||
            fprintf(stderr, "Error submitting the frame to the filtergraph:");
 | 
			
		||||
            goto fail;
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        /* Get all the filtered output that is available. */
 | 
			
		||||
        while ((err = av_buffersink_get_frame(sink, frame)) >= 0) {
 | 
			
		||||
            /* now do something with our filtered frame */
 | 
			
		||||
            err = process_output(md5, frame);
 | 
			
		||||
            if (err < 0) {
 | 
			
		||||
                fprintf(stderr, "Error processing the filtered frame:");
 | 
			
		||||
                goto fail;
 | 
			
		||||
            }
 | 
			
		||||
            av_frame_unref(frame);
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        if (err == AVERROR(EAGAIN)) {
 | 
			
		||||
            /* Need to feed more frames in. */
 | 
			
		||||
            continue;
 | 
			
		||||
        } else if (err == AVERROR_EOF) {
 | 
			
		||||
            /* Nothing more to do, finish. */
 | 
			
		||||
            break;
 | 
			
		||||
        } else if (err < 0) {
 | 
			
		||||
            /* An error occurred. */
 | 
			
		||||
            fprintf(stderr, "Error filtering the data:");
 | 
			
		||||
            goto fail;
 | 
			
		||||
        }
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    avfilter_graph_free(&graph);
 | 
			
		||||
    av_frame_free(&frame);
 | 
			
		||||
    av_freep(&md5);
 | 
			
		||||
 | 
			
		||||
    return 0;
 | 
			
		||||
 | 
			
		||||
fail:
 | 
			
		||||
    av_strerror(err, errstr, sizeof(errstr));
 | 
			
		||||
    fprintf(stderr, "%s\n", errstr);
 | 
			
		||||
    return 1;
 | 
			
		||||
}
 | 
			
		||||
@@ -25,7 +25,7 @@
 | 
			
		||||
/**
 | 
			
		||||
 * @file
 | 
			
		||||
 * API example for audio decoding and filtering
 | 
			
		||||
 * @example filtering_audio.c
 | 
			
		||||
 * @example doc/examples/filtering_audio.c
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
#include <unistd.h>
 | 
			
		||||
@@ -36,10 +36,9 @@
 | 
			
		||||
#include <libavfilter/avcodec.h>
 | 
			
		||||
#include <libavfilter/buffersink.h>
 | 
			
		||||
#include <libavfilter/buffersrc.h>
 | 
			
		||||
#include <libavutil/opt.h>
 | 
			
		||||
 | 
			
		||||
static const char *filter_descr = "aresample=8000,aformat=sample_fmts=s16:channel_layouts=mono";
 | 
			
		||||
static const char *player       = "ffplay -f s16le -ar 8000 -ac 1 -";
 | 
			
		||||
const char *filter_descr = "aresample=8000,aconvert=s16:mono";
 | 
			
		||||
const char *player       = "ffplay -f s16le -ar 8000 -ac 1 -";
 | 
			
		||||
 | 
			
		||||
static AVFormatContext *fmt_ctx;
 | 
			
		||||
static AVCodecContext *dec_ctx;
 | 
			
		||||
@@ -71,7 +70,6 @@ static int open_input_file(const char *filename)
 | 
			
		||||
    }
 | 
			
		||||
    audio_stream_index = ret;
 | 
			
		||||
    dec_ctx = fmt_ctx->streams[audio_stream_index]->codec;
 | 
			
		||||
    av_opt_set_int(dec_ctx, "refcounted_frames", 1, 0);
 | 
			
		||||
 | 
			
		||||
    /* init the audio decoder */
 | 
			
		||||
    if ((ret = avcodec_open2(dec_ctx, dec, NULL)) < 0) {
 | 
			
		||||
@@ -85,22 +83,17 @@ static int open_input_file(const char *filename)
 | 
			
		||||
static int init_filters(const char *filters_descr)
 | 
			
		||||
{
 | 
			
		||||
    char args[512];
 | 
			
		||||
    int ret = 0;
 | 
			
		||||
    int ret;
 | 
			
		||||
    AVFilter *abuffersrc  = avfilter_get_by_name("abuffer");
 | 
			
		||||
    AVFilter *abuffersink = avfilter_get_by_name("abuffersink");
 | 
			
		||||
    AVFilter *abuffersink = avfilter_get_by_name("ffabuffersink");
 | 
			
		||||
    AVFilterInOut *outputs = avfilter_inout_alloc();
 | 
			
		||||
    AVFilterInOut *inputs  = avfilter_inout_alloc();
 | 
			
		||||
    static const enum AVSampleFormat out_sample_fmts[] = { AV_SAMPLE_FMT_S16, -1 };
 | 
			
		||||
    static const int64_t out_channel_layouts[] = { AV_CH_LAYOUT_MONO, -1 };
 | 
			
		||||
    static const int out_sample_rates[] = { 8000, -1 };
 | 
			
		||||
    const enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_S16, -1 };
 | 
			
		||||
    AVABufferSinkParams *abuffersink_params;
 | 
			
		||||
    const AVFilterLink *outlink;
 | 
			
		||||
    AVRational time_base = fmt_ctx->streams[audio_stream_index]->time_base;
 | 
			
		||||
 | 
			
		||||
    filter_graph = avfilter_graph_alloc();
 | 
			
		||||
    if (!outputs || !inputs || !filter_graph) {
 | 
			
		||||
        ret = AVERROR(ENOMEM);
 | 
			
		||||
        goto end;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* buffer audio source: the decoded frames from the decoder will be inserted here. */
 | 
			
		||||
    if (!dec_ctx->channel_layout)
 | 
			
		||||
@@ -113,71 +106,37 @@ static int init_filters(const char *filters_descr)
 | 
			
		||||
                                       args, NULL, filter_graph);
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
        av_log(NULL, AV_LOG_ERROR, "Cannot create audio buffer source\n");
 | 
			
		||||
        goto end;
 | 
			
		||||
        return ret;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* buffer audio sink: to terminate the filter chain. */
 | 
			
		||||
    abuffersink_params = av_abuffersink_params_alloc();
 | 
			
		||||
    abuffersink_params->sample_fmts     = sample_fmts;
 | 
			
		||||
    ret = avfilter_graph_create_filter(&buffersink_ctx, abuffersink, "out",
 | 
			
		||||
                                       NULL, NULL, filter_graph);
 | 
			
		||||
                                       NULL, abuffersink_params, filter_graph);
 | 
			
		||||
    av_free(abuffersink_params);
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
        av_log(NULL, AV_LOG_ERROR, "Cannot create audio buffer sink\n");
 | 
			
		||||
        goto end;
 | 
			
		||||
        return ret;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    ret = av_opt_set_int_list(buffersink_ctx, "sample_fmts", out_sample_fmts, -1,
 | 
			
		||||
                              AV_OPT_SEARCH_CHILDREN);
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
        av_log(NULL, AV_LOG_ERROR, "Cannot set output sample format\n");
 | 
			
		||||
        goto end;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    ret = av_opt_set_int_list(buffersink_ctx, "channel_layouts", out_channel_layouts, -1,
 | 
			
		||||
                              AV_OPT_SEARCH_CHILDREN);
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
        av_log(NULL, AV_LOG_ERROR, "Cannot set output channel layout\n");
 | 
			
		||||
        goto end;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    ret = av_opt_set_int_list(buffersink_ctx, "sample_rates", out_sample_rates, -1,
 | 
			
		||||
                              AV_OPT_SEARCH_CHILDREN);
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
        av_log(NULL, AV_LOG_ERROR, "Cannot set output sample rate\n");
 | 
			
		||||
        goto end;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /*
 | 
			
		||||
     * Set the endpoints for the filter graph. The filter_graph will
 | 
			
		||||
     * be linked to the graph described by filters_descr.
 | 
			
		||||
     */
 | 
			
		||||
 | 
			
		||||
    /*
 | 
			
		||||
     * The buffer source output must be connected to the input pad of
 | 
			
		||||
     * the first filter described by filters_descr; since the first
 | 
			
		||||
     * filter input label is not specified, it is set to "in" by
 | 
			
		||||
     * default.
 | 
			
		||||
     */
 | 
			
		||||
    /* Endpoints for the filter graph. */
 | 
			
		||||
    outputs->name       = av_strdup("in");
 | 
			
		||||
    outputs->filter_ctx = buffersrc_ctx;
 | 
			
		||||
    outputs->pad_idx    = 0;
 | 
			
		||||
    outputs->next       = NULL;
 | 
			
		||||
 | 
			
		||||
    /*
 | 
			
		||||
     * The buffer sink input must be connected to the output pad of
 | 
			
		||||
     * the last filter described by filters_descr; since the last
 | 
			
		||||
     * filter output label is not specified, it is set to "out" by
 | 
			
		||||
     * default.
 | 
			
		||||
     */
 | 
			
		||||
    inputs->name       = av_strdup("out");
 | 
			
		||||
    inputs->filter_ctx = buffersink_ctx;
 | 
			
		||||
    inputs->pad_idx    = 0;
 | 
			
		||||
    inputs->next       = NULL;
 | 
			
		||||
 | 
			
		||||
    if ((ret = avfilter_graph_parse_ptr(filter_graph, filters_descr,
 | 
			
		||||
    if ((ret = avfilter_graph_parse(filter_graph, filters_descr,
 | 
			
		||||
                                    &inputs, &outputs, NULL)) < 0)
 | 
			
		||||
        goto end;
 | 
			
		||||
        return ret;
 | 
			
		||||
 | 
			
		||||
    if ((ret = avfilter_graph_config(filter_graph, NULL)) < 0)
 | 
			
		||||
        goto end;
 | 
			
		||||
        return ret;
 | 
			
		||||
 | 
			
		||||
    /* Print summary of the sink buffer
 | 
			
		||||
     * Note: args buffer is reused to store channel layout string */
 | 
			
		||||
@@ -188,17 +147,14 @@ static int init_filters(const char *filters_descr)
 | 
			
		||||
           (char *)av_x_if_null(av_get_sample_fmt_name(outlink->format), "?"),
 | 
			
		||||
           args);
 | 
			
		||||
 | 
			
		||||
end:
 | 
			
		||||
    avfilter_inout_free(&inputs);
 | 
			
		||||
    avfilter_inout_free(&outputs);
 | 
			
		||||
 | 
			
		||||
    return ret;
 | 
			
		||||
    return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void print_frame(const AVFrame *frame)
 | 
			
		||||
static void print_samplesref(AVFilterBufferRef *samplesref)
 | 
			
		||||
{
 | 
			
		||||
    const int n = frame->nb_samples * av_get_channel_layout_nb_channels(av_frame_get_channel_layout(frame));
 | 
			
		||||
    const uint16_t *p     = (uint16_t*)frame->data[0];
 | 
			
		||||
    const AVFilterBufferRefAudioProps *props = samplesref->audio;
 | 
			
		||||
    const int n = props->nb_samples * av_get_channel_layout_nb_channels(props->channel_layout);
 | 
			
		||||
    const uint16_t *p     = (uint16_t*)samplesref->data[0];
 | 
			
		||||
    const uint16_t *p_end = p + n;
 | 
			
		||||
 | 
			
		||||
    while (p < p_end) {
 | 
			
		||||
@@ -212,12 +168,11 @@ static void print_frame(const AVFrame *frame)
 | 
			
		||||
int main(int argc, char **argv)
 | 
			
		||||
{
 | 
			
		||||
    int ret;
 | 
			
		||||
    AVPacket packet0, packet;
 | 
			
		||||
    AVFrame *frame = av_frame_alloc();
 | 
			
		||||
    AVFrame *filt_frame = av_frame_alloc();
 | 
			
		||||
    AVPacket packet;
 | 
			
		||||
    AVFrame *frame = avcodec_alloc_frame();
 | 
			
		||||
    int got_frame;
 | 
			
		||||
 | 
			
		||||
    if (!frame || !filt_frame) {
 | 
			
		||||
    if (!frame) {
 | 
			
		||||
        perror("Could not allocate frame");
 | 
			
		||||
        exit(1);
 | 
			
		||||
    }
 | 
			
		||||
@@ -226,6 +181,7 @@ int main(int argc, char **argv)
 | 
			
		||||
        exit(1);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    avcodec_register_all();
 | 
			
		||||
    av_register_all();
 | 
			
		||||
    avfilter_register_all();
 | 
			
		||||
 | 
			
		||||
@@ -235,60 +191,54 @@ int main(int argc, char **argv)
 | 
			
		||||
        goto end;
 | 
			
		||||
 | 
			
		||||
    /* read all packets */
 | 
			
		||||
    packet0.data = NULL;
 | 
			
		||||
    packet.data = NULL;
 | 
			
		||||
    while (1) {
 | 
			
		||||
        if (!packet0.data) {
 | 
			
		||||
        AVFilterBufferRef *samplesref;
 | 
			
		||||
        if ((ret = av_read_frame(fmt_ctx, &packet)) < 0)
 | 
			
		||||
            break;
 | 
			
		||||
            packet0 = packet;
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        if (packet.stream_index == audio_stream_index) {
 | 
			
		||||
            avcodec_get_frame_defaults(frame);
 | 
			
		||||
            got_frame = 0;
 | 
			
		||||
            ret = avcodec_decode_audio4(dec_ctx, frame, &got_frame, &packet);
 | 
			
		||||
            if (ret < 0) {
 | 
			
		||||
                av_log(NULL, AV_LOG_ERROR, "Error decoding audio\n");
 | 
			
		||||
                continue;
 | 
			
		||||
            }
 | 
			
		||||
            packet.size -= ret;
 | 
			
		||||
            packet.data += ret;
 | 
			
		||||
 | 
			
		||||
            if (got_frame) {
 | 
			
		||||
                /* push the audio data from decoded frame into the filtergraph */
 | 
			
		||||
                if (av_buffersrc_add_frame_flags(buffersrc_ctx, frame, 0) < 0) {
 | 
			
		||||
                if (av_buffersrc_add_frame(buffersrc_ctx, frame, 0) < 0) {
 | 
			
		||||
                    av_log(NULL, AV_LOG_ERROR, "Error while feeding the audio filtergraph\n");
 | 
			
		||||
                    break;
 | 
			
		||||
                }
 | 
			
		||||
 | 
			
		||||
                /* pull filtered audio from the filtergraph */
 | 
			
		||||
                while (1) {
 | 
			
		||||
                    ret = av_buffersink_get_frame(buffersink_ctx, filt_frame);
 | 
			
		||||
                    ret = av_buffersink_get_buffer_ref(buffersink_ctx, &samplesref, 0);
 | 
			
		||||
                    if(ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
 | 
			
		||||
                        break;
 | 
			
		||||
                    if(ret < 0)
 | 
			
		||||
                        goto end;
 | 
			
		||||
                    print_frame(filt_frame);
 | 
			
		||||
                    av_frame_unref(filt_frame);
 | 
			
		||||
                    if (samplesref) {
 | 
			
		||||
                        print_samplesref(samplesref);
 | 
			
		||||
                        avfilter_unref_bufferp(&samplesref);
 | 
			
		||||
                    }
 | 
			
		||||
                }
 | 
			
		||||
 | 
			
		||||
            if (packet.size <= 0)
 | 
			
		||||
                av_free_packet(&packet0);
 | 
			
		||||
        } else {
 | 
			
		||||
            /* discard non-wanted packets */
 | 
			
		||||
            av_free_packet(&packet0);
 | 
			
		||||
            }
 | 
			
		||||
        }
 | 
			
		||||
        av_free_packet(&packet);
 | 
			
		||||
    }
 | 
			
		||||
end:
 | 
			
		||||
    avfilter_graph_free(&filter_graph);
 | 
			
		||||
    if (dec_ctx)
 | 
			
		||||
        avcodec_close(dec_ctx);
 | 
			
		||||
    avformat_close_input(&fmt_ctx);
 | 
			
		||||
    av_frame_free(&frame);
 | 
			
		||||
    av_frame_free(&filt_frame);
 | 
			
		||||
    av_freep(&frame);
 | 
			
		||||
 | 
			
		||||
    if (ret < 0 && ret != AVERROR_EOF) {
 | 
			
		||||
        fprintf(stderr, "Error occurred: %s\n", av_err2str(ret));
 | 
			
		||||
        char buf[1024];
 | 
			
		||||
        av_strerror(ret, buf, sizeof(buf));
 | 
			
		||||
        fprintf(stderr, "Error occurred: %s\n", buf);
 | 
			
		||||
        exit(1);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
 
 | 
			
		||||
@@ -24,7 +24,7 @@
 | 
			
		||||
/**
 | 
			
		||||
 * @file
 | 
			
		||||
 * API example for decoding and filtering
 | 
			
		||||
 * @example filtering_video.c
 | 
			
		||||
 * @example doc/examples/filtering_video.c
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
#define _XOPEN_SOURCE 600 /* for usleep */
 | 
			
		||||
@@ -36,12 +36,8 @@
 | 
			
		||||
#include <libavfilter/avcodec.h>
 | 
			
		||||
#include <libavfilter/buffersink.h>
 | 
			
		||||
#include <libavfilter/buffersrc.h>
 | 
			
		||||
#include <libavutil/opt.h>
 | 
			
		||||
 | 
			
		||||
const char *filter_descr = "scale=78:24,transpose=cclock";
 | 
			
		||||
/* other way:
 | 
			
		||||
   scale=78:24 [scl]; [scl] transpose=cclock // assumes "[in]" and "[out]" to be input output pads respectively
 | 
			
		||||
 */
 | 
			
		||||
const char *filter_descr = "scale=78:24";
 | 
			
		||||
 | 
			
		||||
static AVFormatContext *fmt_ctx;
 | 
			
		||||
static AVCodecContext *dec_ctx;
 | 
			
		||||
@@ -74,7 +70,6 @@ static int open_input_file(const char *filename)
 | 
			
		||||
    }
 | 
			
		||||
    video_stream_index = ret;
 | 
			
		||||
    dec_ctx = fmt_ctx->streams[video_stream_index]->codec;
 | 
			
		||||
    av_opt_set_int(dec_ctx, "refcounted_frames", 1, 0);
 | 
			
		||||
 | 
			
		||||
    /* init the video decoder */
 | 
			
		||||
    if ((ret = avcodec_open2(dec_ctx, dec, NULL)) < 0) {
 | 
			
		||||
@@ -88,117 +83,88 @@ static int open_input_file(const char *filename)
 | 
			
		||||
static int init_filters(const char *filters_descr)
 | 
			
		||||
{
 | 
			
		||||
    char args[512];
 | 
			
		||||
    int ret = 0;
 | 
			
		||||
    int ret;
 | 
			
		||||
    AVFilter *buffersrc  = avfilter_get_by_name("buffer");
 | 
			
		||||
    AVFilter *buffersink = avfilter_get_by_name("buffersink");
 | 
			
		||||
    AVFilter *buffersink = avfilter_get_by_name("ffbuffersink");
 | 
			
		||||
    AVFilterInOut *outputs = avfilter_inout_alloc();
 | 
			
		||||
    AVFilterInOut *inputs  = avfilter_inout_alloc();
 | 
			
		||||
    AVRational time_base = fmt_ctx->streams[video_stream_index]->time_base;
 | 
			
		||||
    enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_GRAY8, AV_PIX_FMT_NONE };
 | 
			
		||||
    AVBufferSinkParams *buffersink_params;
 | 
			
		||||
 | 
			
		||||
    filter_graph = avfilter_graph_alloc();
 | 
			
		||||
    if (!outputs || !inputs || !filter_graph) {
 | 
			
		||||
        ret = AVERROR(ENOMEM);
 | 
			
		||||
        goto end;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* buffer video source: the decoded frames from the decoder will be inserted here. */
 | 
			
		||||
    snprintf(args, sizeof(args),
 | 
			
		||||
            "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d",
 | 
			
		||||
            dec_ctx->width, dec_ctx->height, dec_ctx->pix_fmt,
 | 
			
		||||
            time_base.num, time_base.den,
 | 
			
		||||
            dec_ctx->time_base.num, dec_ctx->time_base.den,
 | 
			
		||||
            dec_ctx->sample_aspect_ratio.num, dec_ctx->sample_aspect_ratio.den);
 | 
			
		||||
 | 
			
		||||
    ret = avfilter_graph_create_filter(&buffersrc_ctx, buffersrc, "in",
 | 
			
		||||
                                       args, NULL, filter_graph);
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
        av_log(NULL, AV_LOG_ERROR, "Cannot create buffer source\n");
 | 
			
		||||
        goto end;
 | 
			
		||||
        return ret;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* buffer video sink: to terminate the filter chain. */
 | 
			
		||||
    buffersink_params = av_buffersink_params_alloc();
 | 
			
		||||
    buffersink_params->pixel_fmts = pix_fmts;
 | 
			
		||||
    ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out",
 | 
			
		||||
                                       NULL, NULL, filter_graph);
 | 
			
		||||
                                       NULL, buffersink_params, filter_graph);
 | 
			
		||||
    av_free(buffersink_params);
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
        av_log(NULL, AV_LOG_ERROR, "Cannot create buffer sink\n");
 | 
			
		||||
        goto end;
 | 
			
		||||
        return ret;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    ret = av_opt_set_int_list(buffersink_ctx, "pix_fmts", pix_fmts,
 | 
			
		||||
                              AV_PIX_FMT_NONE, AV_OPT_SEARCH_CHILDREN);
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
        av_log(NULL, AV_LOG_ERROR, "Cannot set output pixel format\n");
 | 
			
		||||
        goto end;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /*
 | 
			
		||||
     * Set the endpoints for the filter graph. The filter_graph will
 | 
			
		||||
     * be linked to the graph described by filters_descr.
 | 
			
		||||
     */
 | 
			
		||||
 | 
			
		||||
    /*
 | 
			
		||||
     * The buffer source output must be connected to the input pad of
 | 
			
		||||
     * the first filter described by filters_descr; since the first
 | 
			
		||||
     * filter input label is not specified, it is set to "in" by
 | 
			
		||||
     * default.
 | 
			
		||||
     */
 | 
			
		||||
    /* Endpoints for the filter graph. */
 | 
			
		||||
    outputs->name       = av_strdup("in");
 | 
			
		||||
    outputs->filter_ctx = buffersrc_ctx;
 | 
			
		||||
    outputs->pad_idx    = 0;
 | 
			
		||||
    outputs->next       = NULL;
 | 
			
		||||
 | 
			
		||||
    /*
 | 
			
		||||
     * The buffer sink input must be connected to the output pad of
 | 
			
		||||
     * the last filter described by filters_descr; since the last
 | 
			
		||||
     * filter output label is not specified, it is set to "out" by
 | 
			
		||||
     * default.
 | 
			
		||||
     */
 | 
			
		||||
    inputs->name       = av_strdup("out");
 | 
			
		||||
    inputs->filter_ctx = buffersink_ctx;
 | 
			
		||||
    inputs->pad_idx    = 0;
 | 
			
		||||
    inputs->next       = NULL;
 | 
			
		||||
 | 
			
		||||
    if ((ret = avfilter_graph_parse_ptr(filter_graph, filters_descr,
 | 
			
		||||
    if ((ret = avfilter_graph_parse(filter_graph, filters_descr,
 | 
			
		||||
                                    &inputs, &outputs, NULL)) < 0)
 | 
			
		||||
        goto end;
 | 
			
		||||
        return ret;
 | 
			
		||||
 | 
			
		||||
    if ((ret = avfilter_graph_config(filter_graph, NULL)) < 0)
 | 
			
		||||
        goto end;
 | 
			
		||||
 | 
			
		||||
end:
 | 
			
		||||
    avfilter_inout_free(&inputs);
 | 
			
		||||
    avfilter_inout_free(&outputs);
 | 
			
		||||
 | 
			
		||||
        return ret;
 | 
			
		||||
    return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void display_frame(const AVFrame *frame, AVRational time_base)
 | 
			
		||||
static void display_picref(AVFilterBufferRef *picref, AVRational time_base)
 | 
			
		||||
{
 | 
			
		||||
    int x, y;
 | 
			
		||||
    uint8_t *p0, *p;
 | 
			
		||||
    int64_t delay;
 | 
			
		||||
 | 
			
		||||
    if (frame->pts != AV_NOPTS_VALUE) {
 | 
			
		||||
    if (picref->pts != AV_NOPTS_VALUE) {
 | 
			
		||||
        if (last_pts != AV_NOPTS_VALUE) {
 | 
			
		||||
            /* sleep roughly the right amount of time;
 | 
			
		||||
             * usleep is in microseconds, just like AV_TIME_BASE. */
 | 
			
		||||
            delay = av_rescale_q(frame->pts - last_pts,
 | 
			
		||||
            delay = av_rescale_q(picref->pts - last_pts,
 | 
			
		||||
                                 time_base, AV_TIME_BASE_Q);
 | 
			
		||||
            if (delay > 0 && delay < 1000000)
 | 
			
		||||
                usleep(delay);
 | 
			
		||||
        }
 | 
			
		||||
        last_pts = frame->pts;
 | 
			
		||||
        last_pts = picref->pts;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* Trivial ASCII grayscale display. */
 | 
			
		||||
    p0 = frame->data[0];
 | 
			
		||||
    p0 = picref->data[0];
 | 
			
		||||
    puts("\033c");
 | 
			
		||||
    for (y = 0; y < frame->height; y++) {
 | 
			
		||||
    for (y = 0; y < picref->video->h; y++) {
 | 
			
		||||
        p = p0;
 | 
			
		||||
        for (x = 0; x < frame->width; x++)
 | 
			
		||||
        for (x = 0; x < picref->video->w; x++)
 | 
			
		||||
            putchar(" .-+#"[*(p++) / 52]);
 | 
			
		||||
        putchar('\n');
 | 
			
		||||
        p0 += frame->linesize[0];
 | 
			
		||||
        p0 += picref->linesize[0];
 | 
			
		||||
    }
 | 
			
		||||
    fflush(stdout);
 | 
			
		||||
}
 | 
			
		||||
@@ -207,11 +173,10 @@ int main(int argc, char **argv)
 | 
			
		||||
{
 | 
			
		||||
    int ret;
 | 
			
		||||
    AVPacket packet;
 | 
			
		||||
    AVFrame *frame = av_frame_alloc();
 | 
			
		||||
    AVFrame *filt_frame = av_frame_alloc();
 | 
			
		||||
    AVFrame *frame = avcodec_alloc_frame();
 | 
			
		||||
    int got_frame;
 | 
			
		||||
 | 
			
		||||
    if (!frame || !filt_frame) {
 | 
			
		||||
    if (!frame) {
 | 
			
		||||
        perror("Could not allocate frame");
 | 
			
		||||
        exit(1);
 | 
			
		||||
    }
 | 
			
		||||
@@ -220,6 +185,7 @@ int main(int argc, char **argv)
 | 
			
		||||
        exit(1);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    avcodec_register_all();
 | 
			
		||||
    av_register_all();
 | 
			
		||||
    avfilter_register_all();
 | 
			
		||||
 | 
			
		||||
@@ -230,10 +196,12 @@ int main(int argc, char **argv)
 | 
			
		||||
 | 
			
		||||
    /* read all packets */
 | 
			
		||||
    while (1) {
 | 
			
		||||
        AVFilterBufferRef *picref;
 | 
			
		||||
        if ((ret = av_read_frame(fmt_ctx, &packet)) < 0)
 | 
			
		||||
            break;
 | 
			
		||||
 | 
			
		||||
        if (packet.stream_index == video_stream_index) {
 | 
			
		||||
            avcodec_get_frame_defaults(frame);
 | 
			
		||||
            got_frame = 0;
 | 
			
		||||
            ret = avcodec_decode_video2(dec_ctx, frame, &got_frame, &packet);
 | 
			
		||||
            if (ret < 0) {
 | 
			
		||||
@@ -245,35 +213,39 @@ int main(int argc, char **argv)
 | 
			
		||||
                frame->pts = av_frame_get_best_effort_timestamp(frame);
 | 
			
		||||
 | 
			
		||||
                /* push the decoded frame into the filtergraph */
 | 
			
		||||
                if (av_buffersrc_add_frame_flags(buffersrc_ctx, frame, AV_BUFFERSRC_FLAG_KEEP_REF) < 0) {
 | 
			
		||||
                if (av_buffersrc_add_frame(buffersrc_ctx, frame, 0) < 0) {
 | 
			
		||||
                    av_log(NULL, AV_LOG_ERROR, "Error while feeding the filtergraph\n");
 | 
			
		||||
                    break;
 | 
			
		||||
                }
 | 
			
		||||
 | 
			
		||||
                /* pull filtered frames from the filtergraph */
 | 
			
		||||
                /* pull filtered pictures from the filtergraph */
 | 
			
		||||
                while (1) {
 | 
			
		||||
                    ret = av_buffersink_get_frame(buffersink_ctx, filt_frame);
 | 
			
		||||
                    ret = av_buffersink_get_buffer_ref(buffersink_ctx, &picref, 0);
 | 
			
		||||
                    if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
 | 
			
		||||
                        break;
 | 
			
		||||
                    if (ret < 0)
 | 
			
		||||
                        goto end;
 | 
			
		||||
                    display_frame(filt_frame, buffersink_ctx->inputs[0]->time_base);
 | 
			
		||||
                    av_frame_unref(filt_frame);
 | 
			
		||||
 | 
			
		||||
                    if (picref) {
 | 
			
		||||
                        display_picref(picref, buffersink_ctx->inputs[0]->time_base);
 | 
			
		||||
                        avfilter_unref_bufferp(&picref);
 | 
			
		||||
                    }
 | 
			
		||||
                }
 | 
			
		||||
                av_frame_unref(frame);
 | 
			
		||||
            }
 | 
			
		||||
        }
 | 
			
		||||
        av_free_packet(&packet);
 | 
			
		||||
    }
 | 
			
		||||
end:
 | 
			
		||||
    avfilter_graph_free(&filter_graph);
 | 
			
		||||
    if (dec_ctx)
 | 
			
		||||
        avcodec_close(dec_ctx);
 | 
			
		||||
    avformat_close_input(&fmt_ctx);
 | 
			
		||||
    av_frame_free(&frame);
 | 
			
		||||
    av_frame_free(&filt_frame);
 | 
			
		||||
    av_freep(&frame);
 | 
			
		||||
 | 
			
		||||
    if (ret < 0 && ret != AVERROR_EOF) {
 | 
			
		||||
        fprintf(stderr, "Error occurred: %s\n", av_err2str(ret));
 | 
			
		||||
        char buf[1024];
 | 
			
		||||
        av_strerror(ret, buf, sizeof(buf));
 | 
			
		||||
        fprintf(stderr, "Error occurred: %s\n", buf);
 | 
			
		||||
        exit(1);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
 
 | 
			
		||||
@@ -1,155 +0,0 @@
 | 
			
		||||
/*
 | 
			
		||||
 * Copyright (c) 2015 Stephan Holljes
 | 
			
		||||
 *
 | 
			
		||||
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 | 
			
		||||
 * of this software and associated documentation files (the "Software"), to deal
 | 
			
		||||
 * in the Software without restriction, including without limitation the rights
 | 
			
		||||
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 | 
			
		||||
 * copies of the Software, and to permit persons to whom the Software is
 | 
			
		||||
 * furnished to do so, subject to the following conditions:
 | 
			
		||||
 *
 | 
			
		||||
 * The above copyright notice and this permission notice shall be included in
 | 
			
		||||
 * all copies or substantial portions of the Software.
 | 
			
		||||
 *
 | 
			
		||||
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 | 
			
		||||
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 | 
			
		||||
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 | 
			
		||||
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 | 
			
		||||
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 | 
			
		||||
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 | 
			
		||||
 * THE SOFTWARE.
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * @file
 | 
			
		||||
 * libavformat multi-client network API usage example.
 | 
			
		||||
 *
 | 
			
		||||
 * @example http_multiclient.c
 | 
			
		||||
 * This example will serve a file without decoding or demuxing it over http.
 | 
			
		||||
 * Multiple clients can connect and will receive the same file.
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
#include <libavformat/avformat.h>
 | 
			
		||||
#include <libavutil/opt.h>
 | 
			
		||||
#include <unistd.h>
 | 
			
		||||
 | 
			
		||||
void process_client(AVIOContext *client, const char *in_uri)
 | 
			
		||||
{
 | 
			
		||||
    AVIOContext *input = NULL;
 | 
			
		||||
    uint8_t buf[1024];
 | 
			
		||||
    int ret, n, reply_code;
 | 
			
		||||
    char *resource = NULL;
 | 
			
		||||
    while ((ret = avio_handshake(client)) > 0) {
 | 
			
		||||
        av_opt_get(client, "resource", AV_OPT_SEARCH_CHILDREN, &resource);
 | 
			
		||||
        // check for strlen(resource) is necessary, because av_opt_get()
 | 
			
		||||
        // may return empty string.
 | 
			
		||||
        if (resource && strlen(resource))
 | 
			
		||||
            break;
 | 
			
		||||
    }
 | 
			
		||||
    if (ret < 0)
 | 
			
		||||
        goto end;
 | 
			
		||||
    av_log(client, AV_LOG_TRACE, "resource=%p\n", resource);
 | 
			
		||||
    if (resource && resource[0] == '/' && !strcmp((resource + 1), in_uri)) {
 | 
			
		||||
        reply_code = 200;
 | 
			
		||||
    } else {
 | 
			
		||||
        reply_code = AVERROR_HTTP_NOT_FOUND;
 | 
			
		||||
    }
 | 
			
		||||
    if ((ret = av_opt_set_int(client, "reply_code", reply_code, AV_OPT_SEARCH_CHILDREN)) < 0) {
 | 
			
		||||
        av_log(client, AV_LOG_ERROR, "Failed to set reply_code: %s.\n", av_err2str(ret));
 | 
			
		||||
        goto end;
 | 
			
		||||
    }
 | 
			
		||||
    av_log(client, AV_LOG_TRACE, "Set reply code to %d\n", reply_code);
 | 
			
		||||
 | 
			
		||||
    while ((ret = avio_handshake(client)) > 0);
 | 
			
		||||
 | 
			
		||||
    if (ret < 0)
 | 
			
		||||
        goto end;
 | 
			
		||||
 | 
			
		||||
    fprintf(stderr, "Handshake performed.\n");
 | 
			
		||||
    if (reply_code != 200)
 | 
			
		||||
        goto end;
 | 
			
		||||
    fprintf(stderr, "Opening input file.\n");
 | 
			
		||||
    if ((ret = avio_open2(&input, in_uri, AVIO_FLAG_READ, NULL, NULL)) < 0) {
 | 
			
		||||
        av_log(input, AV_LOG_ERROR, "Failed to open input: %s: %s.\n", in_uri,
 | 
			
		||||
               av_err2str(ret));
 | 
			
		||||
        goto end;
 | 
			
		||||
    }
 | 
			
		||||
    for(;;) {
 | 
			
		||||
        n = avio_read(input, buf, sizeof(buf));
 | 
			
		||||
        if (n < 0) {
 | 
			
		||||
            if (n == AVERROR_EOF)
 | 
			
		||||
                break;
 | 
			
		||||
            av_log(input, AV_LOG_ERROR, "Error reading from input: %s.\n",
 | 
			
		||||
                   av_err2str(n));
 | 
			
		||||
            break;
 | 
			
		||||
        }
 | 
			
		||||
        avio_write(client, buf, n);
 | 
			
		||||
        avio_flush(client);
 | 
			
		||||
    }
 | 
			
		||||
end:
 | 
			
		||||
    fprintf(stderr, "Flushing client\n");
 | 
			
		||||
    avio_flush(client);
 | 
			
		||||
    fprintf(stderr, "Closing client\n");
 | 
			
		||||
    avio_close(client);
 | 
			
		||||
    fprintf(stderr, "Closing input\n");
 | 
			
		||||
    avio_close(input);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
int main(int argc, char **argv)
 | 
			
		||||
{
 | 
			
		||||
    av_log_set_level(AV_LOG_TRACE);
 | 
			
		||||
    AVDictionary *options = NULL;
 | 
			
		||||
    AVIOContext *client = NULL, *server = NULL;
 | 
			
		||||
    const char *in_uri, *out_uri;
 | 
			
		||||
    int ret, pid;
 | 
			
		||||
    if (argc < 3) {
 | 
			
		||||
        printf("usage: %s input http://hostname[:port]\n"
 | 
			
		||||
               "API example program to serve http to multiple clients.\n"
 | 
			
		||||
               "\n", argv[0]);
 | 
			
		||||
        return 1;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    in_uri = argv[1];
 | 
			
		||||
    out_uri = argv[2];
 | 
			
		||||
 | 
			
		||||
    av_register_all();
 | 
			
		||||
    avformat_network_init();
 | 
			
		||||
 | 
			
		||||
    if ((ret = av_dict_set(&options, "listen", "2", 0)) < 0) {
 | 
			
		||||
        fprintf(stderr, "Failed to set listen mode for server: %s\n", av_err2str(ret));
 | 
			
		||||
        return ret;
 | 
			
		||||
    }
 | 
			
		||||
    if ((ret = avio_open2(&server, out_uri, AVIO_FLAG_WRITE, NULL, &options)) < 0) {
 | 
			
		||||
        fprintf(stderr, "Failed to open server: %s\n", av_err2str(ret));
 | 
			
		||||
        return ret;
 | 
			
		||||
    }
 | 
			
		||||
    fprintf(stderr, "Entering main loop.\n");
 | 
			
		||||
    for(;;) {
 | 
			
		||||
        if ((ret = avio_accept(server, &client)) < 0)
 | 
			
		||||
            goto end;
 | 
			
		||||
        fprintf(stderr, "Accepted client, forking process.\n");
 | 
			
		||||
        // XXX: Since we don't reap our children and don't ignore signals
 | 
			
		||||
        //      this produces zombie processes.
 | 
			
		||||
        pid = fork();
 | 
			
		||||
        if (pid < 0) {
 | 
			
		||||
            perror("Fork failed");
 | 
			
		||||
            ret = AVERROR(errno);
 | 
			
		||||
            goto end;
 | 
			
		||||
        }
 | 
			
		||||
        if (pid == 0) {
 | 
			
		||||
            fprintf(stderr, "In child.\n");
 | 
			
		||||
            process_client(client, in_uri);
 | 
			
		||||
            avio_close(server);
 | 
			
		||||
            exit(0);
 | 
			
		||||
        }
 | 
			
		||||
        if (pid > 0)
 | 
			
		||||
            avio_close(client);
 | 
			
		||||
    }
 | 
			
		||||
end:
 | 
			
		||||
    avio_close(server);
 | 
			
		||||
    if (ret < 0 && ret != AVERROR_EOF) {
 | 
			
		||||
        fprintf(stderr, "Some errors occurred: %s\n", av_err2str(ret));
 | 
			
		||||
        return 1;
 | 
			
		||||
    }
 | 
			
		||||
    return 0;
 | 
			
		||||
}
 | 
			
		||||
@@ -23,7 +23,7 @@
 | 
			
		||||
/**
 | 
			
		||||
 * @file
 | 
			
		||||
 * Shows how the metadata API can be used in application programs.
 | 
			
		||||
 * @example metadata.c
 | 
			
		||||
 * @example doc/examples/metadata.c
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
#include <stdio.h>
 | 
			
		||||
 
 | 
			
		||||
@@ -24,9 +24,9 @@
 | 
			
		||||
 * @file
 | 
			
		||||
 * libavformat API example.
 | 
			
		||||
 *
 | 
			
		||||
 * Output a media file in any supported libavformat format. The default
 | 
			
		||||
 * codecs are used.
 | 
			
		||||
 * @example muxing.c
 | 
			
		||||
 * Output a media file in any supported libavformat format.
 | 
			
		||||
 * The default codecs are used.
 | 
			
		||||
 * @example doc/examples/muxing.c
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
#include <stdlib.h>
 | 
			
		||||
@@ -34,67 +34,31 @@
 | 
			
		||||
#include <string.h>
 | 
			
		||||
#include <math.h>
 | 
			
		||||
 | 
			
		||||
#include <libavutil/avassert.h>
 | 
			
		||||
#include <libavutil/channel_layout.h>
 | 
			
		||||
#include <libavutil/opt.h>
 | 
			
		||||
#include <libavutil/mathematics.h>
 | 
			
		||||
#include <libavutil/timestamp.h>
 | 
			
		||||
#include <libavformat/avformat.h>
 | 
			
		||||
#include <libswscale/swscale.h>
 | 
			
		||||
#include <libswresample/swresample.h>
 | 
			
		||||
 | 
			
		||||
#define STREAM_DURATION   10.0
 | 
			
		||||
/* 5 seconds stream duration */
 | 
			
		||||
#define STREAM_DURATION   200.0
 | 
			
		||||
#define STREAM_FRAME_RATE 25 /* 25 images/s */
 | 
			
		||||
#define STREAM_NB_FRAMES  ((int)(STREAM_DURATION * STREAM_FRAME_RATE))
 | 
			
		||||
#define STREAM_PIX_FMT    AV_PIX_FMT_YUV420P /* default pix_fmt */
 | 
			
		||||
 | 
			
		||||
#define SCALE_FLAGS SWS_BICUBIC
 | 
			
		||||
static int sws_flags = SWS_BICUBIC;
 | 
			
		||||
 | 
			
		||||
// a wrapper around a single output AVStream
 | 
			
		||||
typedef struct OutputStream {
 | 
			
		||||
    AVStream *st;
 | 
			
		||||
/**************************************************************/
 | 
			
		||||
/* audio output */
 | 
			
		||||
 | 
			
		||||
    /* pts of the next frame that will be generated */
 | 
			
		||||
    int64_t next_pts;
 | 
			
		||||
    int samples_count;
 | 
			
		||||
 | 
			
		||||
    AVFrame *frame;
 | 
			
		||||
    AVFrame *tmp_frame;
 | 
			
		||||
 | 
			
		||||
    float t, tincr, tincr2;
 | 
			
		||||
 | 
			
		||||
    struct SwsContext *sws_ctx;
 | 
			
		||||
    struct SwrContext *swr_ctx;
 | 
			
		||||
} OutputStream;
 | 
			
		||||
 | 
			
		||||
static void log_packet(const AVFormatContext *fmt_ctx, const AVPacket *pkt)
 | 
			
		||||
{
 | 
			
		||||
    AVRational *time_base = &fmt_ctx->streams[pkt->stream_index]->time_base;
 | 
			
		||||
 | 
			
		||||
    printf("pts:%s pts_time:%s dts:%s dts_time:%s duration:%s duration_time:%s stream_index:%d\n",
 | 
			
		||||
           av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, time_base),
 | 
			
		||||
           av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, time_base),
 | 
			
		||||
           av_ts2str(pkt->duration), av_ts2timestr(pkt->duration, time_base),
 | 
			
		||||
           pkt->stream_index);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static int write_frame(AVFormatContext *fmt_ctx, const AVRational *time_base, AVStream *st, AVPacket *pkt)
 | 
			
		||||
{
 | 
			
		||||
    /* rescale output packet timestamp values from codec to stream timebase */
 | 
			
		||||
    av_packet_rescale_ts(pkt, *time_base, st->time_base);
 | 
			
		||||
    pkt->stream_index = st->index;
 | 
			
		||||
 | 
			
		||||
    /* Write the compressed frame to the media file. */
 | 
			
		||||
    log_packet(fmt_ctx, pkt);
 | 
			
		||||
    return av_interleaved_write_frame(fmt_ctx, pkt);
 | 
			
		||||
}
 | 
			
		||||
static float t, tincr, tincr2;
 | 
			
		||||
static int16_t *samples;
 | 
			
		||||
static int audio_input_frame_size;
 | 
			
		||||
 | 
			
		||||
/* Add an output stream. */
 | 
			
		||||
static void add_stream(OutputStream *ost, AVFormatContext *oc,
 | 
			
		||||
                       AVCodec **codec,
 | 
			
		||||
static AVStream *add_stream(AVFormatContext *oc, AVCodec **codec,
 | 
			
		||||
                            enum AVCodecID codec_id)
 | 
			
		||||
{
 | 
			
		||||
    AVCodecContext *c;
 | 
			
		||||
    int i;
 | 
			
		||||
    AVStream *st;
 | 
			
		||||
 | 
			
		||||
    /* find the encoder */
 | 
			
		||||
    *codec = avcodec_find_encoder(codec_id);
 | 
			
		||||
@@ -104,38 +68,21 @@ static void add_stream(OutputStream *ost, AVFormatContext *oc,
 | 
			
		||||
        exit(1);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    ost->st = avformat_new_stream(oc, *codec);
 | 
			
		||||
    if (!ost->st) {
 | 
			
		||||
    st = avformat_new_stream(oc, *codec);
 | 
			
		||||
    if (!st) {
 | 
			
		||||
        fprintf(stderr, "Could not allocate stream\n");
 | 
			
		||||
        exit(1);
 | 
			
		||||
    }
 | 
			
		||||
    ost->st->id = oc->nb_streams-1;
 | 
			
		||||
    c = ost->st->codec;
 | 
			
		||||
    st->id = oc->nb_streams-1;
 | 
			
		||||
    c = st->codec;
 | 
			
		||||
 | 
			
		||||
    switch ((*codec)->type) {
 | 
			
		||||
    case AVMEDIA_TYPE_AUDIO:
 | 
			
		||||
        c->sample_fmt  = (*codec)->sample_fmts ?
 | 
			
		||||
            (*codec)->sample_fmts[0] : AV_SAMPLE_FMT_FLTP;
 | 
			
		||||
        st->id = 1;
 | 
			
		||||
        c->sample_fmt  = AV_SAMPLE_FMT_S16;
 | 
			
		||||
        c->bit_rate    = 64000;
 | 
			
		||||
        c->sample_rate = 44100;
 | 
			
		||||
        if ((*codec)->supported_samplerates) {
 | 
			
		||||
            c->sample_rate = (*codec)->supported_samplerates[0];
 | 
			
		||||
            for (i = 0; (*codec)->supported_samplerates[i]; i++) {
 | 
			
		||||
                if ((*codec)->supported_samplerates[i] == 44100)
 | 
			
		||||
                    c->sample_rate = 44100;
 | 
			
		||||
            }
 | 
			
		||||
        }
 | 
			
		||||
        c->channels        = av_get_channel_layout_nb_channels(c->channel_layout);
 | 
			
		||||
        c->channel_layout = AV_CH_LAYOUT_STEREO;
 | 
			
		||||
        if ((*codec)->channel_layouts) {
 | 
			
		||||
            c->channel_layout = (*codec)->channel_layouts[0];
 | 
			
		||||
            for (i = 0; (*codec)->channel_layouts[i]; i++) {
 | 
			
		||||
                if ((*codec)->channel_layouts[i] == AV_CH_LAYOUT_STEREO)
 | 
			
		||||
                    c->channel_layout = AV_CH_LAYOUT_STEREO;
 | 
			
		||||
            }
 | 
			
		||||
        }
 | 
			
		||||
        c->channels        = av_get_channel_layout_nb_channels(c->channel_layout);
 | 
			
		||||
        ost->st->time_base = (AVRational){ 1, c->sample_rate };
 | 
			
		||||
        c->channels    = 2;
 | 
			
		||||
        break;
 | 
			
		||||
 | 
			
		||||
    case AVMEDIA_TYPE_VIDEO:
 | 
			
		||||
@@ -149,9 +96,8 @@ static void add_stream(OutputStream *ost, AVFormatContext *oc,
 | 
			
		||||
         * of which frame timestamps are represented. For fixed-fps content,
 | 
			
		||||
         * timebase should be 1/framerate and timestamp increments should be
 | 
			
		||||
         * identical to 1. */
 | 
			
		||||
        ost->st->time_base = (AVRational){ 1, STREAM_FRAME_RATE };
 | 
			
		||||
        c->time_base       = ost->st->time_base;
 | 
			
		||||
 | 
			
		||||
        c->time_base.den = STREAM_FRAME_RATE;
 | 
			
		||||
        c->time_base.num = 1;
 | 
			
		||||
        c->gop_size      = 12; /* emit one intra frame every twelve frames at most */
 | 
			
		||||
        c->pix_fmt       = STREAM_PIX_FMT;
 | 
			
		||||
        if (c->codec_id == AV_CODEC_ID_MPEG2VIDEO) {
 | 
			
		||||
@@ -172,169 +118,85 @@ static void add_stream(OutputStream *ost, AVFormatContext *oc,
 | 
			
		||||
 | 
			
		||||
    /* Some formats want stream headers to be separate. */
 | 
			
		||||
    if (oc->oformat->flags & AVFMT_GLOBALHEADER)
 | 
			
		||||
        c->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
 | 
			
		||||
        c->flags |= CODEC_FLAG_GLOBAL_HEADER;
 | 
			
		||||
 | 
			
		||||
    return st;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/**************************************************************/
 | 
			
		||||
/* audio output */
 | 
			
		||||
 | 
			
		||||
static AVFrame *alloc_audio_frame(enum AVSampleFormat sample_fmt,
 | 
			
		||||
                                  uint64_t channel_layout,
 | 
			
		||||
                                  int sample_rate, int nb_samples)
 | 
			
		||||
{
 | 
			
		||||
    AVFrame *frame = av_frame_alloc();
 | 
			
		||||
    int ret;
 | 
			
		||||
static float t, tincr, tincr2;
 | 
			
		||||
static int16_t *samples;
 | 
			
		||||
static int audio_input_frame_size;
 | 
			
		||||
 | 
			
		||||
    if (!frame) {
 | 
			
		||||
        fprintf(stderr, "Error allocating an audio frame\n");
 | 
			
		||||
        exit(1);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    frame->format = sample_fmt;
 | 
			
		||||
    frame->channel_layout = channel_layout;
 | 
			
		||||
    frame->sample_rate = sample_rate;
 | 
			
		||||
    frame->nb_samples = nb_samples;
 | 
			
		||||
 | 
			
		||||
    if (nb_samples) {
 | 
			
		||||
        ret = av_frame_get_buffer(frame, 0);
 | 
			
		||||
        if (ret < 0) {
 | 
			
		||||
            fprintf(stderr, "Error allocating an audio buffer\n");
 | 
			
		||||
            exit(1);
 | 
			
		||||
        }
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    return frame;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void open_audio(AVFormatContext *oc, AVCodec *codec, OutputStream *ost, AVDictionary *opt_arg)
 | 
			
		||||
static void open_audio(AVFormatContext *oc, AVCodec *codec, AVStream *st)
 | 
			
		||||
{
 | 
			
		||||
    AVCodecContext *c;
 | 
			
		||||
    int nb_samples;
 | 
			
		||||
    int ret;
 | 
			
		||||
    AVDictionary *opt = NULL;
 | 
			
		||||
 | 
			
		||||
    c = ost->st->codec;
 | 
			
		||||
    c = st->codec;
 | 
			
		||||
 | 
			
		||||
    /* open it */
 | 
			
		||||
    av_dict_copy(&opt, opt_arg, 0);
 | 
			
		||||
    ret = avcodec_open2(c, codec, &opt);
 | 
			
		||||
    av_dict_free(&opt);
 | 
			
		||||
    ret = avcodec_open2(c, codec, NULL);
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
        fprintf(stderr, "Could not open audio codec: %s\n", av_err2str(ret));
 | 
			
		||||
        exit(1);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* init signal generator */
 | 
			
		||||
    ost->t     = 0;
 | 
			
		||||
    ost->tincr = 2 * M_PI * 110.0 / c->sample_rate;
 | 
			
		||||
    t     = 0;
 | 
			
		||||
    tincr = 2 * M_PI * 110.0 / c->sample_rate;
 | 
			
		||||
    /* increment frequency by 110 Hz per second */
 | 
			
		||||
    ost->tincr2 = 2 * M_PI * 110.0 / c->sample_rate / c->sample_rate;
 | 
			
		||||
    tincr2 = 2 * M_PI * 110.0 / c->sample_rate / c->sample_rate;
 | 
			
		||||
 | 
			
		||||
    if (c->codec->capabilities & AV_CODEC_CAP_VARIABLE_FRAME_SIZE)
 | 
			
		||||
        nb_samples = 10000;
 | 
			
		||||
    if (c->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)
 | 
			
		||||
        audio_input_frame_size = 10000;
 | 
			
		||||
    else
 | 
			
		||||
        nb_samples = c->frame_size;
 | 
			
		||||
 | 
			
		||||
    ost->frame     = alloc_audio_frame(c->sample_fmt, c->channel_layout,
 | 
			
		||||
                                       c->sample_rate, nb_samples);
 | 
			
		||||
    ost->tmp_frame = alloc_audio_frame(AV_SAMPLE_FMT_S16, c->channel_layout,
 | 
			
		||||
                                       c->sample_rate, nb_samples);
 | 
			
		||||
 | 
			
		||||
    /* create resampler context */
 | 
			
		||||
        ost->swr_ctx = swr_alloc();
 | 
			
		||||
        if (!ost->swr_ctx) {
 | 
			
		||||
            fprintf(stderr, "Could not allocate resampler context\n");
 | 
			
		||||
            exit(1);
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        /* set options */
 | 
			
		||||
        av_opt_set_int       (ost->swr_ctx, "in_channel_count",   c->channels,       0);
 | 
			
		||||
        av_opt_set_int       (ost->swr_ctx, "in_sample_rate",     c->sample_rate,    0);
 | 
			
		||||
        av_opt_set_sample_fmt(ost->swr_ctx, "in_sample_fmt",      AV_SAMPLE_FMT_S16, 0);
 | 
			
		||||
        av_opt_set_int       (ost->swr_ctx, "out_channel_count",  c->channels,       0);
 | 
			
		||||
        av_opt_set_int       (ost->swr_ctx, "out_sample_rate",    c->sample_rate,    0);
 | 
			
		||||
        av_opt_set_sample_fmt(ost->swr_ctx, "out_sample_fmt",     c->sample_fmt,     0);
 | 
			
		||||
 | 
			
		||||
        /* initialize the resampling context */
 | 
			
		||||
        if ((ret = swr_init(ost->swr_ctx)) < 0) {
 | 
			
		||||
            fprintf(stderr, "Failed to initialize the resampling context\n");
 | 
			
		||||
        audio_input_frame_size = c->frame_size;
 | 
			
		||||
    samples = av_malloc(audio_input_frame_size *
 | 
			
		||||
                        av_get_bytes_per_sample(c->sample_fmt) *
 | 
			
		||||
                        c->channels);
 | 
			
		||||
    if (!samples) {
 | 
			
		||||
        fprintf(stderr, "Could not allocate audio samples buffer\n");
 | 
			
		||||
        exit(1);
 | 
			
		||||
    }
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/* Prepare a 16 bit dummy audio frame of 'frame_size' samples and
 | 
			
		||||
 * 'nb_channels' channels. */
 | 
			
		||||
static AVFrame *get_audio_frame(OutputStream *ost)
 | 
			
		||||
static void get_audio_frame(int16_t *samples, int frame_size, int nb_channels)
 | 
			
		||||
{
 | 
			
		||||
    AVFrame *frame = ost->tmp_frame;
 | 
			
		||||
    int j, i, v;
 | 
			
		||||
    int16_t *q = (int16_t*)frame->data[0];
 | 
			
		||||
    int16_t *q;
 | 
			
		||||
 | 
			
		||||
    /* check if we want to generate more frames */
 | 
			
		||||
    if (av_compare_ts(ost->next_pts, ost->st->codec->time_base,
 | 
			
		||||
                      STREAM_DURATION, (AVRational){ 1, 1 }) >= 0)
 | 
			
		||||
        return NULL;
 | 
			
		||||
 | 
			
		||||
    for (j = 0; j <frame->nb_samples; j++) {
 | 
			
		||||
        v = (int)(sin(ost->t) * 10000);
 | 
			
		||||
        for (i = 0; i < ost->st->codec->channels; i++)
 | 
			
		||||
    q = samples;
 | 
			
		||||
    for (j = 0; j < frame_size; j++) {
 | 
			
		||||
        v = (int)(sin(t) * 10000);
 | 
			
		||||
        for (i = 0; i < nb_channels; i++)
 | 
			
		||||
            *q++ = v;
 | 
			
		||||
        ost->t     += ost->tincr;
 | 
			
		||||
        ost->tincr += ost->tincr2;
 | 
			
		||||
        t     += tincr;
 | 
			
		||||
        tincr += tincr2;
 | 
			
		||||
    }
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
    frame->pts = ost->next_pts;
 | 
			
		||||
    ost->next_pts  += frame->nb_samples;
 | 
			
		||||
 | 
			
		||||
    return frame;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/*
 | 
			
		||||
 * encode one audio frame and send it to the muxer
 | 
			
		||||
 * return 1 when encoding is finished, 0 otherwise
 | 
			
		||||
 */
 | 
			
		||||
static int write_audio_frame(AVFormatContext *oc, OutputStream *ost)
 | 
			
		||||
static void write_audio_frame(AVFormatContext *oc, AVStream *st)
 | 
			
		||||
{
 | 
			
		||||
    AVCodecContext *c;
 | 
			
		||||
    AVPacket pkt = { 0 }; // data and size must be 0;
 | 
			
		||||
    AVFrame *frame;
 | 
			
		||||
    int ret;
 | 
			
		||||
    int got_packet;
 | 
			
		||||
    int dst_nb_samples;
 | 
			
		||||
    AVFrame *frame = avcodec_alloc_frame();
 | 
			
		||||
    int got_packet, ret;
 | 
			
		||||
 | 
			
		||||
    av_init_packet(&pkt);
 | 
			
		||||
    c = ost->st->codec;
 | 
			
		||||
    c = st->codec;
 | 
			
		||||
 | 
			
		||||
    frame = get_audio_frame(ost);
 | 
			
		||||
 | 
			
		||||
    if (frame) {
 | 
			
		||||
        /* convert samples from native format to destination codec format, using the resampler */
 | 
			
		||||
            /* compute destination number of samples */
 | 
			
		||||
            dst_nb_samples = av_rescale_rnd(swr_get_delay(ost->swr_ctx, c->sample_rate) + frame->nb_samples,
 | 
			
		||||
                                            c->sample_rate, c->sample_rate, AV_ROUND_UP);
 | 
			
		||||
            av_assert0(dst_nb_samples == frame->nb_samples);
 | 
			
		||||
 | 
			
		||||
        /* when we pass a frame to the encoder, it may keep a reference to it
 | 
			
		||||
         * internally;
 | 
			
		||||
         * make sure we do not overwrite it here
 | 
			
		||||
         */
 | 
			
		||||
        ret = av_frame_make_writable(ost->frame);
 | 
			
		||||
        if (ret < 0)
 | 
			
		||||
            exit(1);
 | 
			
		||||
 | 
			
		||||
            /* convert to destination format */
 | 
			
		||||
            ret = swr_convert(ost->swr_ctx,
 | 
			
		||||
                              ost->frame->data, dst_nb_samples,
 | 
			
		||||
                              (const uint8_t **)frame->data, frame->nb_samples);
 | 
			
		||||
            if (ret < 0) {
 | 
			
		||||
                fprintf(stderr, "Error while converting\n");
 | 
			
		||||
                exit(1);
 | 
			
		||||
            }
 | 
			
		||||
            frame = ost->frame;
 | 
			
		||||
 | 
			
		||||
        frame->pts = av_rescale_q(ost->samples_count, (AVRational){1, c->sample_rate}, c->time_base);
 | 
			
		||||
        ost->samples_count += dst_nb_samples;
 | 
			
		||||
    }
 | 
			
		||||
    get_audio_frame(samples, audio_input_frame_size, c->channels);
 | 
			
		||||
    frame->nb_samples = audio_input_frame_size;
 | 
			
		||||
    avcodec_fill_audio_frame(frame, c->channels, c->sample_fmt,
 | 
			
		||||
                             (uint8_t *)samples,
 | 
			
		||||
                             audio_input_frame_size *
 | 
			
		||||
                             av_get_bytes_per_sample(c->sample_fmt) *
 | 
			
		||||
                             c->channels, 1);
 | 
			
		||||
 | 
			
		||||
    ret = avcodec_encode_audio2(c, &pkt, frame, &got_packet);
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
@@ -342,93 +204,82 @@ static int write_audio_frame(AVFormatContext *oc, OutputStream *ost)
 | 
			
		||||
        exit(1);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    if (got_packet) {
 | 
			
		||||
        ret = write_frame(oc, &c->time_base, ost->st, &pkt);
 | 
			
		||||
        if (ret < 0) {
 | 
			
		||||
    if (!got_packet)
 | 
			
		||||
        return;
 | 
			
		||||
 | 
			
		||||
    pkt.stream_index = st->index;
 | 
			
		||||
 | 
			
		||||
    /* Write the compressed frame to the media file. */
 | 
			
		||||
    ret = av_interleaved_write_frame(oc, &pkt);
 | 
			
		||||
    if (ret != 0) {
 | 
			
		||||
        fprintf(stderr, "Error while writing audio frame: %s\n",
 | 
			
		||||
                av_err2str(ret));
 | 
			
		||||
        exit(1);
 | 
			
		||||
    }
 | 
			
		||||
    avcodec_free_frame(&frame);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
    return (frame || got_packet) ? 0 : 1;
 | 
			
		||||
static void close_audio(AVFormatContext *oc, AVStream *st)
 | 
			
		||||
{
 | 
			
		||||
    avcodec_close(st->codec);
 | 
			
		||||
 | 
			
		||||
    av_free(samples);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/**************************************************************/
 | 
			
		||||
/* video output */
 | 
			
		||||
 | 
			
		||||
static AVFrame *alloc_picture(enum AVPixelFormat pix_fmt, int width, int height)
 | 
			
		||||
{
 | 
			
		||||
    AVFrame *picture;
 | 
			
		||||
    int ret;
 | 
			
		||||
static AVFrame *frame;
 | 
			
		||||
static AVPicture src_picture, dst_picture;
 | 
			
		||||
static int frame_count;
 | 
			
		||||
 | 
			
		||||
    picture = av_frame_alloc();
 | 
			
		||||
    if (!picture)
 | 
			
		||||
        return NULL;
 | 
			
		||||
 | 
			
		||||
    picture->format = pix_fmt;
 | 
			
		||||
    picture->width  = width;
 | 
			
		||||
    picture->height = height;
 | 
			
		||||
 | 
			
		||||
    /* allocate the buffers for the frame data */
 | 
			
		||||
    ret = av_frame_get_buffer(picture, 32);
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
        fprintf(stderr, "Could not allocate frame data.\n");
 | 
			
		||||
        exit(1);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    return picture;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void open_video(AVFormatContext *oc, AVCodec *codec, OutputStream *ost, AVDictionary *opt_arg)
 | 
			
		||||
static void open_video(AVFormatContext *oc, AVCodec *codec, AVStream *st)
 | 
			
		||||
{
 | 
			
		||||
    int ret;
 | 
			
		||||
    AVCodecContext *c = ost->st->codec;
 | 
			
		||||
    AVDictionary *opt = NULL;
 | 
			
		||||
 | 
			
		||||
    av_dict_copy(&opt, opt_arg, 0);
 | 
			
		||||
    AVCodecContext *c = st->codec;
 | 
			
		||||
 | 
			
		||||
    /* open the codec */
 | 
			
		||||
    ret = avcodec_open2(c, codec, &opt);
 | 
			
		||||
    av_dict_free(&opt);
 | 
			
		||||
    ret = avcodec_open2(c, codec, NULL);
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
        fprintf(stderr, "Could not open video codec: %s\n", av_err2str(ret));
 | 
			
		||||
        exit(1);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* allocate and init a re-usable frame */
 | 
			
		||||
    ost->frame = alloc_picture(c->pix_fmt, c->width, c->height);
 | 
			
		||||
    if (!ost->frame) {
 | 
			
		||||
    frame = avcodec_alloc_frame();
 | 
			
		||||
    if (!frame) {
 | 
			
		||||
        fprintf(stderr, "Could not allocate video frame\n");
 | 
			
		||||
        exit(1);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* Allocate the encoded raw picture. */
 | 
			
		||||
    ret = avpicture_alloc(&dst_picture, c->pix_fmt, c->width, c->height);
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
        fprintf(stderr, "Could not allocate picture: %s\n", av_err2str(ret));
 | 
			
		||||
        exit(1);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* If the output format is not YUV420P, then a temporary YUV420P
 | 
			
		||||
     * picture is needed too. It is then converted to the required
 | 
			
		||||
     * output format. */
 | 
			
		||||
    ost->tmp_frame = NULL;
 | 
			
		||||
    if (c->pix_fmt != AV_PIX_FMT_YUV420P) {
 | 
			
		||||
        ost->tmp_frame = alloc_picture(AV_PIX_FMT_YUV420P, c->width, c->height);
 | 
			
		||||
        if (!ost->tmp_frame) {
 | 
			
		||||
            fprintf(stderr, "Could not allocate temporary picture\n");
 | 
			
		||||
        ret = avpicture_alloc(&src_picture, AV_PIX_FMT_YUV420P, c->width, c->height);
 | 
			
		||||
        if (ret < 0) {
 | 
			
		||||
            fprintf(stderr, "Could not allocate temporary picture: %s\n",
 | 
			
		||||
                    av_err2str(ret));
 | 
			
		||||
            exit(1);
 | 
			
		||||
        }
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* copy data and linesize picture pointers to frame */
 | 
			
		||||
    *((AVPicture *)frame) = dst_picture;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/* Prepare a dummy image. */
 | 
			
		||||
static void fill_yuv_image(AVFrame *pict, int frame_index,
 | 
			
		||||
static void fill_yuv_image(AVPicture *pict, int frame_index,
 | 
			
		||||
                           int width, int height)
 | 
			
		||||
{
 | 
			
		||||
    int x, y, i, ret;
 | 
			
		||||
 | 
			
		||||
    /* when we pass a frame to the encoder, it may keep a reference to it
 | 
			
		||||
     * internally;
 | 
			
		||||
     * make sure we do not overwrite it here
 | 
			
		||||
     */
 | 
			
		||||
    ret = av_frame_make_writable(pict);
 | 
			
		||||
    if (ret < 0)
 | 
			
		||||
        exit(1);
 | 
			
		||||
    int x, y, i;
 | 
			
		||||
 | 
			
		||||
    i = frame_index;
 | 
			
		||||
 | 
			
		||||
@@ -446,108 +297,91 @@ static void fill_yuv_image(AVFrame *pict, int frame_index,
 | 
			
		||||
    }
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static AVFrame *get_video_frame(OutputStream *ost)
 | 
			
		||||
static void write_video_frame(AVFormatContext *oc, AVStream *st)
 | 
			
		||||
{
 | 
			
		||||
    AVCodecContext *c = ost->st->codec;
 | 
			
		||||
 | 
			
		||||
    /* check if we want to generate more frames */
 | 
			
		||||
    if (av_compare_ts(ost->next_pts, ost->st->codec->time_base,
 | 
			
		||||
                      STREAM_DURATION, (AVRational){ 1, 1 }) >= 0)
 | 
			
		||||
        return NULL;
 | 
			
		||||
    int ret;
 | 
			
		||||
    static struct SwsContext *sws_ctx;
 | 
			
		||||
    AVCodecContext *c = st->codec;
 | 
			
		||||
 | 
			
		||||
    if (frame_count >= STREAM_NB_FRAMES) {
 | 
			
		||||
        /* No more frames to compress. The codec has a latency of a few
 | 
			
		||||
         * frames if using B-frames, so we get the last frames by
 | 
			
		||||
         * passing the same picture again. */
 | 
			
		||||
    } else {
 | 
			
		||||
        if (c->pix_fmt != AV_PIX_FMT_YUV420P) {
 | 
			
		||||
            /* as we only generate a YUV420P picture, we must convert it
 | 
			
		||||
             * to the codec pixel format if needed */
 | 
			
		||||
        if (!ost->sws_ctx) {
 | 
			
		||||
            ost->sws_ctx = sws_getContext(c->width, c->height,
 | 
			
		||||
                                          AV_PIX_FMT_YUV420P,
 | 
			
		||||
                                          c->width, c->height,
 | 
			
		||||
                                          c->pix_fmt,
 | 
			
		||||
                                          SCALE_FLAGS, NULL, NULL, NULL);
 | 
			
		||||
            if (!ost->sws_ctx) {
 | 
			
		||||
            if (!sws_ctx) {
 | 
			
		||||
                sws_ctx = sws_getContext(c->width, c->height, AV_PIX_FMT_YUV420P,
 | 
			
		||||
                                         c->width, c->height, c->pix_fmt,
 | 
			
		||||
                                         sws_flags, NULL, NULL, NULL);
 | 
			
		||||
                if (!sws_ctx) {
 | 
			
		||||
                    fprintf(stderr,
 | 
			
		||||
                            "Could not initialize the conversion context\n");
 | 
			
		||||
                    exit(1);
 | 
			
		||||
                }
 | 
			
		||||
            }
 | 
			
		||||
        fill_yuv_image(ost->tmp_frame, ost->next_pts, c->width, c->height);
 | 
			
		||||
        sws_scale(ost->sws_ctx,
 | 
			
		||||
                  (const uint8_t * const *)ost->tmp_frame->data, ost->tmp_frame->linesize,
 | 
			
		||||
                  0, c->height, ost->frame->data, ost->frame->linesize);
 | 
			
		||||
            fill_yuv_image(&src_picture, frame_count, c->width, c->height);
 | 
			
		||||
            sws_scale(sws_ctx,
 | 
			
		||||
                      (const uint8_t * const *)src_picture.data, src_picture.linesize,
 | 
			
		||||
                      0, c->height, dst_picture.data, dst_picture.linesize);
 | 
			
		||||
        } else {
 | 
			
		||||
        fill_yuv_image(ost->frame, ost->next_pts, c->width, c->height);
 | 
			
		||||
            fill_yuv_image(&dst_picture, frame_count, c->width, c->height);
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
    ost->frame->pts = ost->next_pts++;
 | 
			
		||||
 | 
			
		||||
    return ost->frame;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
/*
 | 
			
		||||
 * encode one video frame and send it to the muxer
 | 
			
		||||
 * return 1 when encoding is finished, 0 otherwise
 | 
			
		||||
 */
 | 
			
		||||
static int write_video_frame(AVFormatContext *oc, OutputStream *ost)
 | 
			
		||||
{
 | 
			
		||||
    int ret;
 | 
			
		||||
    AVCodecContext *c;
 | 
			
		||||
    AVFrame *frame;
 | 
			
		||||
    int got_packet = 0;
 | 
			
		||||
 | 
			
		||||
    c = ost->st->codec;
 | 
			
		||||
 | 
			
		||||
    frame = get_video_frame(ost);
 | 
			
		||||
 | 
			
		||||
    if (oc->oformat->flags & AVFMT_RAWPICTURE) {
 | 
			
		||||
        /* a hack to avoid data copy with some raw video muxers */
 | 
			
		||||
        /* Raw video case - directly store the picture in the packet */
 | 
			
		||||
        AVPacket pkt;
 | 
			
		||||
        av_init_packet(&pkt);
 | 
			
		||||
 | 
			
		||||
        if (!frame)
 | 
			
		||||
            return 1;
 | 
			
		||||
 | 
			
		||||
        pkt.flags        |= AV_PKT_FLAG_KEY;
 | 
			
		||||
        pkt.stream_index  = ost->st->index;
 | 
			
		||||
        pkt.data          = (uint8_t *)frame;
 | 
			
		||||
        pkt.stream_index  = st->index;
 | 
			
		||||
        pkt.data          = dst_picture.data[0];
 | 
			
		||||
        pkt.size          = sizeof(AVPicture);
 | 
			
		||||
 | 
			
		||||
        pkt.pts = pkt.dts = frame->pts;
 | 
			
		||||
        av_packet_rescale_ts(&pkt, c->time_base, ost->st->time_base);
 | 
			
		||||
 | 
			
		||||
        ret = av_interleaved_write_frame(oc, &pkt);
 | 
			
		||||
    } else {
 | 
			
		||||
        AVPacket pkt = { 0 };
 | 
			
		||||
        av_init_packet(&pkt);
 | 
			
		||||
 | 
			
		||||
        /* encode the image */
 | 
			
		||||
        ret = avcodec_encode_video2(c, &pkt, frame, &got_packet);
 | 
			
		||||
        AVPacket pkt;
 | 
			
		||||
        int got_output;
 | 
			
		||||
 | 
			
		||||
        av_init_packet(&pkt);
 | 
			
		||||
        pkt.data = NULL;    // packet data will be allocated by the encoder
 | 
			
		||||
        pkt.size = 0;
 | 
			
		||||
 | 
			
		||||
        ret = avcodec_encode_video2(c, &pkt, frame, &got_output);
 | 
			
		||||
        if (ret < 0) {
 | 
			
		||||
            fprintf(stderr, "Error encoding video frame: %s\n", av_err2str(ret));
 | 
			
		||||
            exit(1);
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        if (got_packet) {
 | 
			
		||||
            ret = write_frame(oc, &c->time_base, ost->st, &pkt);
 | 
			
		||||
        /* If size is zero, it means the image was buffered. */
 | 
			
		||||
        if (got_output) {
 | 
			
		||||
            if (c->coded_frame->key_frame)
 | 
			
		||||
                pkt.flags |= AV_PKT_FLAG_KEY;
 | 
			
		||||
 | 
			
		||||
            pkt.stream_index = st->index;
 | 
			
		||||
 | 
			
		||||
            /* Write the compressed frame to the media file. */
 | 
			
		||||
            ret = av_interleaved_write_frame(oc, &pkt);
 | 
			
		||||
        } else {
 | 
			
		||||
            ret = 0;
 | 
			
		||||
        }
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
    if (ret != 0) {
 | 
			
		||||
        fprintf(stderr, "Error while writing video frame: %s\n", av_err2str(ret));
 | 
			
		||||
        exit(1);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    return (frame || got_packet) ? 0 : 1;
 | 
			
		||||
    frame_count++;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void close_stream(AVFormatContext *oc, OutputStream *ost)
 | 
			
		||||
static void close_video(AVFormatContext *oc, AVStream *st)
 | 
			
		||||
{
 | 
			
		||||
    avcodec_close(ost->st->codec);
 | 
			
		||||
    av_frame_free(&ost->frame);
 | 
			
		||||
    av_frame_free(&ost->tmp_frame);
 | 
			
		||||
    sws_freeContext(ost->sws_ctx);
 | 
			
		||||
    swr_free(&ost->swr_ctx);
 | 
			
		||||
    avcodec_close(st->codec);
 | 
			
		||||
    av_free(src_picture.data[0]);
 | 
			
		||||
    av_free(dst_picture.data[0]);
 | 
			
		||||
    av_free(frame);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/**************************************************************/
 | 
			
		||||
@@ -555,20 +389,18 @@ static void close_stream(AVFormatContext *oc, OutputStream *ost)
 | 
			
		||||
 | 
			
		||||
int main(int argc, char **argv)
 | 
			
		||||
{
 | 
			
		||||
    OutputStream video_st = { 0 }, audio_st = { 0 };
 | 
			
		||||
    const char *filename;
 | 
			
		||||
    AVOutputFormat *fmt;
 | 
			
		||||
    AVFormatContext *oc;
 | 
			
		||||
    AVStream *audio_st, *video_st;
 | 
			
		||||
    AVCodec *audio_codec, *video_codec;
 | 
			
		||||
    double audio_pts, video_pts;
 | 
			
		||||
    int ret;
 | 
			
		||||
    int have_video = 0, have_audio = 0;
 | 
			
		||||
    int encode_video = 0, encode_audio = 0;
 | 
			
		||||
    AVDictionary *opt = NULL;
 | 
			
		||||
 | 
			
		||||
    /* Initialize libavcodec, and register all codecs and formats. */
 | 
			
		||||
    av_register_all();
 | 
			
		||||
 | 
			
		||||
    if (argc < 2) {
 | 
			
		||||
    if (argc != 2) {
 | 
			
		||||
        printf("usage: %s output_file\n"
 | 
			
		||||
               "API example program to output a media file with libavformat.\n"
 | 
			
		||||
               "This program generates a synthetic audio and video stream, encodes and\n"
 | 
			
		||||
@@ -580,9 +412,6 @@ int main(int argc, char **argv)
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    filename = argv[1];
 | 
			
		||||
    if (argc > 3 && !strcmp(argv[2], "-flags")) {
 | 
			
		||||
        av_dict_set(&opt, argv[2]+1, argv[3], 0);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* allocate the output media context */
 | 
			
		||||
    avformat_alloc_output_context2(&oc, NULL, NULL, filename);
 | 
			
		||||
@@ -590,31 +419,29 @@ int main(int argc, char **argv)
 | 
			
		||||
        printf("Could not deduce output format from file extension: using MPEG.\n");
 | 
			
		||||
        avformat_alloc_output_context2(&oc, NULL, "mpeg", filename);
 | 
			
		||||
    }
 | 
			
		||||
    if (!oc)
 | 
			
		||||
    if (!oc) {
 | 
			
		||||
        return 1;
 | 
			
		||||
 | 
			
		||||
    }
 | 
			
		||||
    fmt = oc->oformat;
 | 
			
		||||
 | 
			
		||||
    /* Add the audio and video streams using the default format codecs
 | 
			
		||||
     * and initialize the codecs. */
 | 
			
		||||
    video_st = NULL;
 | 
			
		||||
    audio_st = NULL;
 | 
			
		||||
 | 
			
		||||
    if (fmt->video_codec != AV_CODEC_ID_NONE) {
 | 
			
		||||
        add_stream(&video_st, oc, &video_codec, fmt->video_codec);
 | 
			
		||||
        have_video = 1;
 | 
			
		||||
        encode_video = 1;
 | 
			
		||||
        video_st = add_stream(oc, &video_codec, fmt->video_codec);
 | 
			
		||||
    }
 | 
			
		||||
    if (fmt->audio_codec != AV_CODEC_ID_NONE) {
 | 
			
		||||
        add_stream(&audio_st, oc, &audio_codec, fmt->audio_codec);
 | 
			
		||||
        have_audio = 1;
 | 
			
		||||
        encode_audio = 1;
 | 
			
		||||
        audio_st = add_stream(oc, &audio_codec, fmt->audio_codec);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* Now that all the parameters are set, we can open the audio and
 | 
			
		||||
     * video codecs and allocate the necessary encode buffers. */
 | 
			
		||||
    if (have_video)
 | 
			
		||||
        open_video(oc, video_codec, &video_st, opt);
 | 
			
		||||
 | 
			
		||||
    if (have_audio)
 | 
			
		||||
        open_audio(oc, audio_codec, &audio_st, opt);
 | 
			
		||||
    if (video_st)
 | 
			
		||||
        open_video(oc, video_codec, video_st);
 | 
			
		||||
    if (audio_st)
 | 
			
		||||
        open_audio(oc, audio_codec, audio_st);
 | 
			
		||||
 | 
			
		||||
    av_dump_format(oc, 0, filename, 1);
 | 
			
		||||
 | 
			
		||||
@@ -629,21 +456,38 @@ int main(int argc, char **argv)
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* Write the stream header, if any. */
 | 
			
		||||
    ret = avformat_write_header(oc, &opt);
 | 
			
		||||
    ret = avformat_write_header(oc, NULL);
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
        fprintf(stderr, "Error occurred when opening output file: %s\n",
 | 
			
		||||
                av_err2str(ret));
 | 
			
		||||
        return 1;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    while (encode_video || encode_audio) {
 | 
			
		||||
        /* select the stream to encode */
 | 
			
		||||
        if (encode_video &&
 | 
			
		||||
            (!encode_audio || av_compare_ts(video_st.next_pts, video_st.st->codec->time_base,
 | 
			
		||||
                                            audio_st.next_pts, audio_st.st->codec->time_base) <= 0)) {
 | 
			
		||||
            encode_video = !write_video_frame(oc, &video_st);
 | 
			
		||||
    if (frame)
 | 
			
		||||
        frame->pts = 0;
 | 
			
		||||
    for (;;) {
 | 
			
		||||
        /* Compute current audio and video time. */
 | 
			
		||||
        if (audio_st)
 | 
			
		||||
            audio_pts = (double)audio_st->pts.val * audio_st->time_base.num / audio_st->time_base.den;
 | 
			
		||||
        else
 | 
			
		||||
            audio_pts = 0.0;
 | 
			
		||||
 | 
			
		||||
        if (video_st)
 | 
			
		||||
            video_pts = (double)video_st->pts.val * video_st->time_base.num /
 | 
			
		||||
                        video_st->time_base.den;
 | 
			
		||||
        else
 | 
			
		||||
            video_pts = 0.0;
 | 
			
		||||
 | 
			
		||||
        if ((!audio_st || audio_pts >= STREAM_DURATION) &&
 | 
			
		||||
            (!video_st || video_pts >= STREAM_DURATION))
 | 
			
		||||
            break;
 | 
			
		||||
 | 
			
		||||
        /* write interleaved audio and video frames */
 | 
			
		||||
        if (!video_st || (video_st && audio_st && audio_pts < video_pts)) {
 | 
			
		||||
            write_audio_frame(oc, audio_st);
 | 
			
		||||
        } else {
 | 
			
		||||
            encode_audio = !write_audio_frame(oc, &audio_st);
 | 
			
		||||
            write_video_frame(oc, video_st);
 | 
			
		||||
            frame->pts += av_rescale_q(1, video_st->codec->time_base, video_st->time_base);
 | 
			
		||||
        }
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
@@ -654,14 +498,14 @@ int main(int argc, char **argv)
 | 
			
		||||
    av_write_trailer(oc);
 | 
			
		||||
 | 
			
		||||
    /* Close each codec. */
 | 
			
		||||
    if (have_video)
 | 
			
		||||
        close_stream(oc, &video_st);
 | 
			
		||||
    if (have_audio)
 | 
			
		||||
        close_stream(oc, &audio_st);
 | 
			
		||||
    if (video_st)
 | 
			
		||||
        close_video(oc, video_st);
 | 
			
		||||
    if (audio_st)
 | 
			
		||||
        close_audio(oc, audio_st);
 | 
			
		||||
 | 
			
		||||
    if (!(fmt->flags & AVFMT_NOFILE))
 | 
			
		||||
        /* Close the output file. */
 | 
			
		||||
        avio_closep(&oc->pb);
 | 
			
		||||
        avio_close(oc->pb);
 | 
			
		||||
 | 
			
		||||
    /* free the stream */
 | 
			
		||||
    avformat_free_context(oc);
 | 
			
		||||
 
 | 
			
		||||
@@ -1,484 +0,0 @@
 | 
			
		||||
/*
 | 
			
		||||
 * Copyright (c) 2015 Anton Khirnov
 | 
			
		||||
 *
 | 
			
		||||
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 | 
			
		||||
 * of this software and associated documentation files (the "Software"), to deal
 | 
			
		||||
 * in the Software without restriction, including without limitation the rights
 | 
			
		||||
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 | 
			
		||||
 * copies of the Software, and to permit persons to whom the Software is
 | 
			
		||||
 * furnished to do so, subject to the following conditions:
 | 
			
		||||
 *
 | 
			
		||||
 * The above copyright notice and this permission notice shall be included in
 | 
			
		||||
 * all copies or substantial portions of the Software.
 | 
			
		||||
 *
 | 
			
		||||
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 | 
			
		||||
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 | 
			
		||||
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 | 
			
		||||
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 | 
			
		||||
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 | 
			
		||||
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 | 
			
		||||
 * THE SOFTWARE.
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * @file
 | 
			
		||||
 * Intel QSV-accelerated H.264 decoding example.
 | 
			
		||||
 *
 | 
			
		||||
 * @example qsvdec.c
 | 
			
		||||
 * This example shows how to do QSV-accelerated H.264 decoding with output
 | 
			
		||||
 * frames in the VA-API video surfaces.
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
#include "config.h"
 | 
			
		||||
 | 
			
		||||
#include <stdio.h>
 | 
			
		||||
 | 
			
		||||
#include <mfx/mfxvideo.h>
 | 
			
		||||
 | 
			
		||||
#include <va/va.h>
 | 
			
		||||
#include <va/va_x11.h>
 | 
			
		||||
#include <X11/Xlib.h>
 | 
			
		||||
 | 
			
		||||
#include "libavformat/avformat.h"
 | 
			
		||||
#include "libavformat/avio.h"
 | 
			
		||||
 | 
			
		||||
#include "libavcodec/avcodec.h"
 | 
			
		||||
#include "libavcodec/qsv.h"
 | 
			
		||||
 | 
			
		||||
#include "libavutil/error.h"
 | 
			
		||||
#include "libavutil/mem.h"
 | 
			
		||||
 | 
			
		||||
typedef struct DecodeContext {
 | 
			
		||||
    mfxSession mfx_session;
 | 
			
		||||
    VADisplay va_dpy;
 | 
			
		||||
 | 
			
		||||
    VASurfaceID *surfaces;
 | 
			
		||||
    mfxMemId    *surface_ids;
 | 
			
		||||
    int         *surface_used;
 | 
			
		||||
    int       nb_surfaces;
 | 
			
		||||
 | 
			
		||||
    mfxFrameInfo frame_info;
 | 
			
		||||
} DecodeContext;
 | 
			
		||||
 | 
			
		||||
static mfxStatus frame_alloc(mfxHDL pthis, mfxFrameAllocRequest *req,
 | 
			
		||||
                             mfxFrameAllocResponse *resp)
 | 
			
		||||
{
 | 
			
		||||
    DecodeContext *decode = pthis;
 | 
			
		||||
    int err, i;
 | 
			
		||||
 | 
			
		||||
    if (decode->surfaces) {
 | 
			
		||||
        fprintf(stderr, "Multiple allocation requests.\n");
 | 
			
		||||
        return MFX_ERR_MEMORY_ALLOC;
 | 
			
		||||
    }
 | 
			
		||||
    if (!(req->Type & MFX_MEMTYPE_VIDEO_MEMORY_DECODER_TARGET)) {
 | 
			
		||||
        fprintf(stderr, "Unsupported surface type: %d\n", req->Type);
 | 
			
		||||
        return MFX_ERR_UNSUPPORTED;
 | 
			
		||||
    }
 | 
			
		||||
    if (req->Info.BitDepthLuma != 8 || req->Info.BitDepthChroma != 8 ||
 | 
			
		||||
        req->Info.Shift || req->Info.FourCC != MFX_FOURCC_NV12 ||
 | 
			
		||||
        req->Info.ChromaFormat != MFX_CHROMAFORMAT_YUV420) {
 | 
			
		||||
        fprintf(stderr, "Unsupported surface properties.\n");
 | 
			
		||||
        return MFX_ERR_UNSUPPORTED;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    decode->surfaces     = av_malloc_array (req->NumFrameSuggested, sizeof(*decode->surfaces));
 | 
			
		||||
    decode->surface_ids  = av_malloc_array (req->NumFrameSuggested, sizeof(*decode->surface_ids));
 | 
			
		||||
    decode->surface_used = av_mallocz_array(req->NumFrameSuggested, sizeof(*decode->surface_used));
 | 
			
		||||
    if (!decode->surfaces || !decode->surface_ids || !decode->surface_used)
 | 
			
		||||
        goto fail;
 | 
			
		||||
 | 
			
		||||
    err = vaCreateSurfaces(decode->va_dpy, VA_RT_FORMAT_YUV420,
 | 
			
		||||
                           req->Info.Width, req->Info.Height,
 | 
			
		||||
                           decode->surfaces, req->NumFrameSuggested,
 | 
			
		||||
                           NULL, 0);
 | 
			
		||||
    if (err != VA_STATUS_SUCCESS) {
 | 
			
		||||
        fprintf(stderr, "Error allocating VA surfaces\n");
 | 
			
		||||
        goto fail;
 | 
			
		||||
    }
 | 
			
		||||
    decode->nb_surfaces = req->NumFrameSuggested;
 | 
			
		||||
 | 
			
		||||
    for (i = 0; i < decode->nb_surfaces; i++)
 | 
			
		||||
        decode->surface_ids[i] = &decode->surfaces[i];
 | 
			
		||||
 | 
			
		||||
    resp->mids           = decode->surface_ids;
 | 
			
		||||
    resp->NumFrameActual = decode->nb_surfaces;
 | 
			
		||||
 | 
			
		||||
    decode->frame_info = req->Info;
 | 
			
		||||
 | 
			
		||||
    return MFX_ERR_NONE;
 | 
			
		||||
fail:
 | 
			
		||||
    av_freep(&decode->surfaces);
 | 
			
		||||
    av_freep(&decode->surface_ids);
 | 
			
		||||
    av_freep(&decode->surface_used);
 | 
			
		||||
 | 
			
		||||
    return MFX_ERR_MEMORY_ALLOC;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static mfxStatus frame_free(mfxHDL pthis, mfxFrameAllocResponse *resp)
 | 
			
		||||
{
 | 
			
		||||
    DecodeContext *decode = pthis;
 | 
			
		||||
 | 
			
		||||
    if (decode->surfaces)
 | 
			
		||||
        vaDestroySurfaces(decode->va_dpy, decode->surfaces, decode->nb_surfaces);
 | 
			
		||||
    av_freep(&decode->surfaces);
 | 
			
		||||
    av_freep(&decode->surface_ids);
 | 
			
		||||
    av_freep(&decode->surface_used);
 | 
			
		||||
    decode->nb_surfaces = 0;
 | 
			
		||||
 | 
			
		||||
    return MFX_ERR_NONE;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static mfxStatus frame_lock(mfxHDL pthis, mfxMemId mid, mfxFrameData *ptr)
 | 
			
		||||
{
 | 
			
		||||
    return MFX_ERR_UNSUPPORTED;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static mfxStatus frame_unlock(mfxHDL pthis, mfxMemId mid, mfxFrameData *ptr)
 | 
			
		||||
{
 | 
			
		||||
    return MFX_ERR_UNSUPPORTED;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static mfxStatus frame_get_hdl(mfxHDL pthis, mfxMemId mid, mfxHDL *hdl)
 | 
			
		||||
{
 | 
			
		||||
    *hdl = mid;
 | 
			
		||||
    return MFX_ERR_NONE;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void free_buffer(void *opaque, uint8_t *data)
 | 
			
		||||
{
 | 
			
		||||
    int *used = opaque;
 | 
			
		||||
    *used = 0;
 | 
			
		||||
    av_freep(&data);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static int get_buffer(AVCodecContext *avctx, AVFrame *frame, int flags)
 | 
			
		||||
{
 | 
			
		||||
    DecodeContext *decode = avctx->opaque;
 | 
			
		||||
 | 
			
		||||
    mfxFrameSurface1 *surf;
 | 
			
		||||
    AVBufferRef *surf_buf;
 | 
			
		||||
    int idx;
 | 
			
		||||
 | 
			
		||||
    for (idx = 0; idx < decode->nb_surfaces; idx++) {
 | 
			
		||||
        if (!decode->surface_used[idx])
 | 
			
		||||
            break;
 | 
			
		||||
    }
 | 
			
		||||
    if (idx == decode->nb_surfaces) {
 | 
			
		||||
        fprintf(stderr, "No free surfaces\n");
 | 
			
		||||
        return AVERROR(ENOMEM);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    surf = av_mallocz(sizeof(*surf));
 | 
			
		||||
    if (!surf)
 | 
			
		||||
        return AVERROR(ENOMEM);
 | 
			
		||||
    surf_buf = av_buffer_create((uint8_t*)surf, sizeof(*surf), free_buffer,
 | 
			
		||||
                                &decode->surface_used[idx], AV_BUFFER_FLAG_READONLY);
 | 
			
		||||
    if (!surf_buf) {
 | 
			
		||||
        av_freep(&surf);
 | 
			
		||||
        return AVERROR(ENOMEM);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    surf->Info       = decode->frame_info;
 | 
			
		||||
    surf->Data.MemId = &decode->surfaces[idx];
 | 
			
		||||
 | 
			
		||||
    frame->buf[0]  = surf_buf;
 | 
			
		||||
    frame->data[3] = (uint8_t*)surf;
 | 
			
		||||
 | 
			
		||||
    decode->surface_used[idx] = 1;
 | 
			
		||||
 | 
			
		||||
    return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static int get_format(AVCodecContext *avctx, const enum AVPixelFormat *pix_fmts)
 | 
			
		||||
{
 | 
			
		||||
    while (*pix_fmts != AV_PIX_FMT_NONE) {
 | 
			
		||||
        if (*pix_fmts == AV_PIX_FMT_QSV) {
 | 
			
		||||
            if (!avctx->hwaccel_context) {
 | 
			
		||||
                DecodeContext *decode = avctx->opaque;
 | 
			
		||||
                AVQSVContext *qsv = av_qsv_alloc_context();
 | 
			
		||||
                if (!qsv)
 | 
			
		||||
                    return AV_PIX_FMT_NONE;
 | 
			
		||||
 | 
			
		||||
                qsv->session   = decode->mfx_session;
 | 
			
		||||
                qsv->iopattern = MFX_IOPATTERN_OUT_VIDEO_MEMORY;
 | 
			
		||||
 | 
			
		||||
                avctx->hwaccel_context = qsv;
 | 
			
		||||
            }
 | 
			
		||||
 | 
			
		||||
            return AV_PIX_FMT_QSV;
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        pix_fmts++;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    fprintf(stderr, "The QSV pixel format not offered in get_format()\n");
 | 
			
		||||
 | 
			
		||||
    return AV_PIX_FMT_NONE;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static int decode_packet(DecodeContext *decode, AVCodecContext *decoder_ctx,
 | 
			
		||||
                         AVFrame *frame, AVPacket *pkt,
 | 
			
		||||
                         AVIOContext *output_ctx)
 | 
			
		||||
{
 | 
			
		||||
    int ret = 0;
 | 
			
		||||
    int got_frame = 1;
 | 
			
		||||
 | 
			
		||||
    while (pkt->size > 0 || (!pkt->data && got_frame)) {
 | 
			
		||||
        ret = avcodec_decode_video2(decoder_ctx, frame, &got_frame, pkt);
 | 
			
		||||
        if (ret < 0) {
 | 
			
		||||
            fprintf(stderr, "Error during decoding\n");
 | 
			
		||||
            return ret;
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        pkt->data += ret;
 | 
			
		||||
        pkt->size -= ret;
 | 
			
		||||
 | 
			
		||||
        /* A real program would do something useful with the decoded frame here.
 | 
			
		||||
         * We just retrieve the raw data and write it to a file, which is rather
 | 
			
		||||
         * useless but pedagogic. */
 | 
			
		||||
        if (got_frame) {
 | 
			
		||||
            mfxFrameSurface1 *surf = (mfxFrameSurface1*)frame->data[3];
 | 
			
		||||
            VASurfaceID    surface = *(VASurfaceID*)surf->Data.MemId;
 | 
			
		||||
 | 
			
		||||
            VAImageFormat img_fmt = {
 | 
			
		||||
                .fourcc         = VA_FOURCC_NV12,
 | 
			
		||||
                .byte_order     = VA_LSB_FIRST,
 | 
			
		||||
                .bits_per_pixel = 8,
 | 
			
		||||
                .depth          = 8,
 | 
			
		||||
            };
 | 
			
		||||
 | 
			
		||||
            VAImage img;
 | 
			
		||||
 | 
			
		||||
            VAStatus err;
 | 
			
		||||
            uint8_t *data;
 | 
			
		||||
            int i, j;
 | 
			
		||||
 | 
			
		||||
            img.buf      = VA_INVALID_ID;
 | 
			
		||||
            img.image_id = VA_INVALID_ID;
 | 
			
		||||
 | 
			
		||||
            err = vaCreateImage(decode->va_dpy, &img_fmt,
 | 
			
		||||
                                frame->width, frame->height, &img);
 | 
			
		||||
            if (err != VA_STATUS_SUCCESS) {
 | 
			
		||||
                fprintf(stderr, "Error creating an image: %s\n",
 | 
			
		||||
                        vaErrorStr(err));
 | 
			
		||||
                ret = AVERROR_UNKNOWN;
 | 
			
		||||
                goto fail;
 | 
			
		||||
            }
 | 
			
		||||
 | 
			
		||||
            err = vaGetImage(decode->va_dpy, surface, 0, 0,
 | 
			
		||||
                             frame->width, frame->height,
 | 
			
		||||
                             img.image_id);
 | 
			
		||||
            if (err != VA_STATUS_SUCCESS) {
 | 
			
		||||
                fprintf(stderr, "Error getting an image: %s\n",
 | 
			
		||||
                        vaErrorStr(err));
 | 
			
		||||
                ret = AVERROR_UNKNOWN;
 | 
			
		||||
                goto fail;
 | 
			
		||||
            }
 | 
			
		||||
 | 
			
		||||
            err = vaMapBuffer(decode->va_dpy, img.buf, (void**)&data);
 | 
			
		||||
            if (err != VA_STATUS_SUCCESS) {
 | 
			
		||||
                fprintf(stderr, "Error mapping the image buffer: %s\n",
 | 
			
		||||
                        vaErrorStr(err));
 | 
			
		||||
                ret = AVERROR_UNKNOWN;
 | 
			
		||||
                goto fail;
 | 
			
		||||
            }
 | 
			
		||||
 | 
			
		||||
            for (i = 0; i < img.num_planes; i++)
 | 
			
		||||
                for (j = 0; j < (img.height >> (i > 0)); j++)
 | 
			
		||||
                    avio_write(output_ctx, data + img.offsets[i] + j * img.pitches[i], img.width);
 | 
			
		||||
 | 
			
		||||
fail:
 | 
			
		||||
            if (img.buf != VA_INVALID_ID)
 | 
			
		||||
                vaUnmapBuffer(decode->va_dpy, img.buf);
 | 
			
		||||
            if (img.image_id != VA_INVALID_ID)
 | 
			
		||||
                vaDestroyImage(decode->va_dpy, img.image_id);
 | 
			
		||||
            av_frame_unref(frame);
 | 
			
		||||
 | 
			
		||||
            if (ret < 0)
 | 
			
		||||
                return ret;
 | 
			
		||||
        }
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
int main(int argc, char **argv)
 | 
			
		||||
{
 | 
			
		||||
    AVFormatContext *input_ctx = NULL;
 | 
			
		||||
    AVStream *video_st = NULL;
 | 
			
		||||
    AVCodecContext *decoder_ctx = NULL;
 | 
			
		||||
    const AVCodec *decoder;
 | 
			
		||||
 | 
			
		||||
    AVPacket pkt = { 0 };
 | 
			
		||||
    AVFrame *frame = NULL;
 | 
			
		||||
 | 
			
		||||
    DecodeContext decode = { NULL };
 | 
			
		||||
 | 
			
		||||
    Display *dpy = NULL;
 | 
			
		||||
    int va_ver_major, va_ver_minor;
 | 
			
		||||
 | 
			
		||||
    mfxIMPL mfx_impl = MFX_IMPL_AUTO_ANY;
 | 
			
		||||
    mfxVersion mfx_ver = { { 1, 1 } };
 | 
			
		||||
 | 
			
		||||
    mfxFrameAllocator frame_allocator = {
 | 
			
		||||
        .pthis = &decode,
 | 
			
		||||
        .Alloc = frame_alloc,
 | 
			
		||||
        .Lock  = frame_lock,
 | 
			
		||||
        .Unlock = frame_unlock,
 | 
			
		||||
        .GetHDL = frame_get_hdl,
 | 
			
		||||
        .Free   = frame_free,
 | 
			
		||||
    };
 | 
			
		||||
 | 
			
		||||
    AVIOContext *output_ctx = NULL;
 | 
			
		||||
 | 
			
		||||
    int ret, i, err;
 | 
			
		||||
 | 
			
		||||
    av_register_all();
 | 
			
		||||
 | 
			
		||||
    if (argc < 3) {
 | 
			
		||||
        fprintf(stderr, "Usage: %s <input file> <output file>\n", argv[0]);
 | 
			
		||||
        return 1;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* open the input file */
 | 
			
		||||
    ret = avformat_open_input(&input_ctx, argv[1], NULL, NULL);
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
        fprintf(stderr, "Cannot open input file '%s': ", argv[1]);
 | 
			
		||||
        goto finish;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* find the first H.264 video stream */
 | 
			
		||||
    for (i = 0; i < input_ctx->nb_streams; i++) {
 | 
			
		||||
        AVStream *st = input_ctx->streams[i];
 | 
			
		||||
 | 
			
		||||
        if (st->codec->codec_id == AV_CODEC_ID_H264 && !video_st)
 | 
			
		||||
            video_st = st;
 | 
			
		||||
        else
 | 
			
		||||
            st->discard = AVDISCARD_ALL;
 | 
			
		||||
    }
 | 
			
		||||
    if (!video_st) {
 | 
			
		||||
        fprintf(stderr, "No H.264 video stream in the input file\n");
 | 
			
		||||
        goto finish;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* initialize VA-API */
 | 
			
		||||
    dpy = XOpenDisplay(NULL);
 | 
			
		||||
    if (!dpy) {
 | 
			
		||||
        fprintf(stderr, "Cannot open the X display\n");
 | 
			
		||||
        goto finish;
 | 
			
		||||
    }
 | 
			
		||||
    decode.va_dpy = vaGetDisplay(dpy);
 | 
			
		||||
    if (!decode.va_dpy) {
 | 
			
		||||
        fprintf(stderr, "Cannot open the VA display\n");
 | 
			
		||||
        goto finish;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    err = vaInitialize(decode.va_dpy, &va_ver_major, &va_ver_minor);
 | 
			
		||||
    if (err != VA_STATUS_SUCCESS) {
 | 
			
		||||
        fprintf(stderr, "Cannot initialize VA: %s\n", vaErrorStr(err));
 | 
			
		||||
        goto finish;
 | 
			
		||||
    }
 | 
			
		||||
    fprintf(stderr, "Initialized VA v%d.%d\n", va_ver_major, va_ver_minor);
 | 
			
		||||
 | 
			
		||||
    /* initialize an MFX session */
 | 
			
		||||
    err = MFXInit(mfx_impl, &mfx_ver, &decode.mfx_session);
 | 
			
		||||
    if (err != MFX_ERR_NONE) {
 | 
			
		||||
        fprintf(stderr, "Error initializing an MFX session\n");
 | 
			
		||||
        goto finish;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    MFXVideoCORE_SetHandle(decode.mfx_session, MFX_HANDLE_VA_DISPLAY, decode.va_dpy);
 | 
			
		||||
    MFXVideoCORE_SetFrameAllocator(decode.mfx_session, &frame_allocator);
 | 
			
		||||
 | 
			
		||||
    /* initialize the decoder */
 | 
			
		||||
    decoder = avcodec_find_decoder_by_name("h264_qsv");
 | 
			
		||||
    if (!decoder) {
 | 
			
		||||
        fprintf(stderr, "The QSV decoder is not present in libavcodec\n");
 | 
			
		||||
        goto finish;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    decoder_ctx = avcodec_alloc_context3(decoder);
 | 
			
		||||
    if (!decoder_ctx) {
 | 
			
		||||
        ret = AVERROR(ENOMEM);
 | 
			
		||||
        goto finish;
 | 
			
		||||
    }
 | 
			
		||||
    decoder_ctx->codec_id = AV_CODEC_ID_H264;
 | 
			
		||||
    if (video_st->codec->extradata_size) {
 | 
			
		||||
        decoder_ctx->extradata = av_mallocz(video_st->codec->extradata_size +
 | 
			
		||||
                                            AV_INPUT_BUFFER_PADDING_SIZE);
 | 
			
		||||
        if (!decoder_ctx->extradata) {
 | 
			
		||||
            ret = AVERROR(ENOMEM);
 | 
			
		||||
            goto finish;
 | 
			
		||||
        }
 | 
			
		||||
        memcpy(decoder_ctx->extradata, video_st->codec->extradata,
 | 
			
		||||
               video_st->codec->extradata_size);
 | 
			
		||||
        decoder_ctx->extradata_size = video_st->codec->extradata_size;
 | 
			
		||||
    }
 | 
			
		||||
    decoder_ctx->refcounted_frames = 1;
 | 
			
		||||
 | 
			
		||||
    decoder_ctx->opaque      = &decode;
 | 
			
		||||
    decoder_ctx->get_buffer2 = get_buffer;
 | 
			
		||||
    decoder_ctx->get_format  = get_format;
 | 
			
		||||
 | 
			
		||||
    ret = avcodec_open2(decoder_ctx, NULL, NULL);
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
        fprintf(stderr, "Error opening the decoder: ");
 | 
			
		||||
        goto finish;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* open the output stream */
 | 
			
		||||
    ret = avio_open(&output_ctx, argv[2], AVIO_FLAG_WRITE);
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
        fprintf(stderr, "Error opening the output context: ");
 | 
			
		||||
        goto finish;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    frame = av_frame_alloc();
 | 
			
		||||
    if (!frame) {
 | 
			
		||||
        ret = AVERROR(ENOMEM);
 | 
			
		||||
        goto finish;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* actual decoding */
 | 
			
		||||
    while (ret >= 0) {
 | 
			
		||||
        ret = av_read_frame(input_ctx, &pkt);
 | 
			
		||||
        if (ret < 0)
 | 
			
		||||
            break;
 | 
			
		||||
 | 
			
		||||
        if (pkt.stream_index == video_st->index)
 | 
			
		||||
            ret = decode_packet(&decode, decoder_ctx, frame, &pkt, output_ctx);
 | 
			
		||||
 | 
			
		||||
        av_packet_unref(&pkt);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* flush the decoder */
 | 
			
		||||
    pkt.data = NULL;
 | 
			
		||||
    pkt.size = 0;
 | 
			
		||||
    ret = decode_packet(&decode, decoder_ctx, frame, &pkt, output_ctx);
 | 
			
		||||
 | 
			
		||||
finish:
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
        char buf[1024];
 | 
			
		||||
        av_strerror(ret, buf, sizeof(buf));
 | 
			
		||||
        fprintf(stderr, "%s\n", buf);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    avformat_close_input(&input_ctx);
 | 
			
		||||
 | 
			
		||||
    av_frame_free(&frame);
 | 
			
		||||
 | 
			
		||||
    if (decode.mfx_session)
 | 
			
		||||
        MFXClose(decode.mfx_session);
 | 
			
		||||
    if (decode.va_dpy)
 | 
			
		||||
        vaTerminate(decode.va_dpy);
 | 
			
		||||
    if (dpy)
 | 
			
		||||
        XCloseDisplay(dpy);
 | 
			
		||||
 | 
			
		||||
    if (decoder_ctx)
 | 
			
		||||
        av_freep(&decoder_ctx->hwaccel_context);
 | 
			
		||||
    avcodec_free_context(&decoder_ctx);
 | 
			
		||||
 | 
			
		||||
    avio_close(output_ctx);
 | 
			
		||||
 | 
			
		||||
    return ret;
 | 
			
		||||
}
 | 
			
		||||
@@ -1,165 +0,0 @@
 | 
			
		||||
/*
 | 
			
		||||
 * Copyright (c) 2013 Stefano Sabatini
 | 
			
		||||
 *
 | 
			
		||||
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 | 
			
		||||
 * of this software and associated documentation files (the "Software"), to deal
 | 
			
		||||
 * in the Software without restriction, including without limitation the rights
 | 
			
		||||
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 | 
			
		||||
 * copies of the Software, and to permit persons to whom the Software is
 | 
			
		||||
 * furnished to do so, subject to the following conditions:
 | 
			
		||||
 *
 | 
			
		||||
 * The above copyright notice and this permission notice shall be included in
 | 
			
		||||
 * all copies or substantial portions of the Software.
 | 
			
		||||
 *
 | 
			
		||||
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 | 
			
		||||
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 | 
			
		||||
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 | 
			
		||||
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 | 
			
		||||
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 | 
			
		||||
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 | 
			
		||||
 * THE SOFTWARE.
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * @file
 | 
			
		||||
 * libavformat/libavcodec demuxing and muxing API example.
 | 
			
		||||
 *
 | 
			
		||||
 * Remux streams from one container format to another.
 | 
			
		||||
 * @example remuxing.c
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
#include <libavutil/timestamp.h>
 | 
			
		||||
#include <libavformat/avformat.h>
 | 
			
		||||
 | 
			
		||||
static void log_packet(const AVFormatContext *fmt_ctx, const AVPacket *pkt, const char *tag)
 | 
			
		||||
{
 | 
			
		||||
    AVRational *time_base = &fmt_ctx->streams[pkt->stream_index]->time_base;
 | 
			
		||||
 | 
			
		||||
    printf("%s: pts:%s pts_time:%s dts:%s dts_time:%s duration:%s duration_time:%s stream_index:%d\n",
 | 
			
		||||
           tag,
 | 
			
		||||
           av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, time_base),
 | 
			
		||||
           av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, time_base),
 | 
			
		||||
           av_ts2str(pkt->duration), av_ts2timestr(pkt->duration, time_base),
 | 
			
		||||
           pkt->stream_index);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
int main(int argc, char **argv)
 | 
			
		||||
{
 | 
			
		||||
    AVOutputFormat *ofmt = NULL;
 | 
			
		||||
    AVFormatContext *ifmt_ctx = NULL, *ofmt_ctx = NULL;
 | 
			
		||||
    AVPacket pkt;
 | 
			
		||||
    const char *in_filename, *out_filename;
 | 
			
		||||
    int ret, i;
 | 
			
		||||
 | 
			
		||||
    if (argc < 3) {
 | 
			
		||||
        printf("usage: %s input output\n"
 | 
			
		||||
               "API example program to remux a media file with libavformat and libavcodec.\n"
 | 
			
		||||
               "The output format is guessed according to the file extension.\n"
 | 
			
		||||
               "\n", argv[0]);
 | 
			
		||||
        return 1;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    in_filename  = argv[1];
 | 
			
		||||
    out_filename = argv[2];
 | 
			
		||||
 | 
			
		||||
    av_register_all();
 | 
			
		||||
 | 
			
		||||
    if ((ret = avformat_open_input(&ifmt_ctx, in_filename, 0, 0)) < 0) {
 | 
			
		||||
        fprintf(stderr, "Could not open input file '%s'", in_filename);
 | 
			
		||||
        goto end;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    if ((ret = avformat_find_stream_info(ifmt_ctx, 0)) < 0) {
 | 
			
		||||
        fprintf(stderr, "Failed to retrieve input stream information");
 | 
			
		||||
        goto end;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    av_dump_format(ifmt_ctx, 0, in_filename, 0);
 | 
			
		||||
 | 
			
		||||
    avformat_alloc_output_context2(&ofmt_ctx, NULL, NULL, out_filename);
 | 
			
		||||
    if (!ofmt_ctx) {
 | 
			
		||||
        fprintf(stderr, "Could not create output context\n");
 | 
			
		||||
        ret = AVERROR_UNKNOWN;
 | 
			
		||||
        goto end;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    ofmt = ofmt_ctx->oformat;
 | 
			
		||||
 | 
			
		||||
    for (i = 0; i < ifmt_ctx->nb_streams; i++) {
 | 
			
		||||
        AVStream *in_stream = ifmt_ctx->streams[i];
 | 
			
		||||
        AVStream *out_stream = avformat_new_stream(ofmt_ctx, in_stream->codec->codec);
 | 
			
		||||
        if (!out_stream) {
 | 
			
		||||
            fprintf(stderr, "Failed allocating output stream\n");
 | 
			
		||||
            ret = AVERROR_UNKNOWN;
 | 
			
		||||
            goto end;
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        ret = avcodec_copy_context(out_stream->codec, in_stream->codec);
 | 
			
		||||
        if (ret < 0) {
 | 
			
		||||
            fprintf(stderr, "Failed to copy context from input to output stream codec context\n");
 | 
			
		||||
            goto end;
 | 
			
		||||
        }
 | 
			
		||||
        out_stream->codec->codec_tag = 0;
 | 
			
		||||
        if (ofmt_ctx->oformat->flags & AVFMT_GLOBALHEADER)
 | 
			
		||||
            out_stream->codec->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
 | 
			
		||||
    }
 | 
			
		||||
    av_dump_format(ofmt_ctx, 0, out_filename, 1);
 | 
			
		||||
 | 
			
		||||
    if (!(ofmt->flags & AVFMT_NOFILE)) {
 | 
			
		||||
        ret = avio_open(&ofmt_ctx->pb, out_filename, AVIO_FLAG_WRITE);
 | 
			
		||||
        if (ret < 0) {
 | 
			
		||||
            fprintf(stderr, "Could not open output file '%s'", out_filename);
 | 
			
		||||
            goto end;
 | 
			
		||||
        }
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    ret = avformat_write_header(ofmt_ctx, NULL);
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
        fprintf(stderr, "Error occurred when opening output file\n");
 | 
			
		||||
        goto end;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    while (1) {
 | 
			
		||||
        AVStream *in_stream, *out_stream;
 | 
			
		||||
 | 
			
		||||
        ret = av_read_frame(ifmt_ctx, &pkt);
 | 
			
		||||
        if (ret < 0)
 | 
			
		||||
            break;
 | 
			
		||||
 | 
			
		||||
        in_stream  = ifmt_ctx->streams[pkt.stream_index];
 | 
			
		||||
        out_stream = ofmt_ctx->streams[pkt.stream_index];
 | 
			
		||||
 | 
			
		||||
        log_packet(ifmt_ctx, &pkt, "in");
 | 
			
		||||
 | 
			
		||||
        /* copy packet */
 | 
			
		||||
        pkt.pts = av_rescale_q_rnd(pkt.pts, in_stream->time_base, out_stream->time_base, AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX);
 | 
			
		||||
        pkt.dts = av_rescale_q_rnd(pkt.dts, in_stream->time_base, out_stream->time_base, AV_ROUND_NEAR_INF|AV_ROUND_PASS_MINMAX);
 | 
			
		||||
        pkt.duration = av_rescale_q(pkt.duration, in_stream->time_base, out_stream->time_base);
 | 
			
		||||
        pkt.pos = -1;
 | 
			
		||||
        log_packet(ofmt_ctx, &pkt, "out");
 | 
			
		||||
 | 
			
		||||
        ret = av_interleaved_write_frame(ofmt_ctx, &pkt);
 | 
			
		||||
        if (ret < 0) {
 | 
			
		||||
            fprintf(stderr, "Error muxing packet\n");
 | 
			
		||||
            break;
 | 
			
		||||
        }
 | 
			
		||||
        av_free_packet(&pkt);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    av_write_trailer(ofmt_ctx);
 | 
			
		||||
end:
 | 
			
		||||
 | 
			
		||||
    avformat_close_input(&ifmt_ctx);
 | 
			
		||||
 | 
			
		||||
    /* close output */
 | 
			
		||||
    if (ofmt_ctx && !(ofmt->flags & AVFMT_NOFILE))
 | 
			
		||||
        avio_closep(&ofmt_ctx->pb);
 | 
			
		||||
    avformat_free_context(ofmt_ctx);
 | 
			
		||||
 | 
			
		||||
    if (ret < 0 && ret != AVERROR_EOF) {
 | 
			
		||||
        fprintf(stderr, "Error occurred: %s\n", av_err2str(ret));
 | 
			
		||||
        return 1;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    return 0;
 | 
			
		||||
}
 | 
			
		||||
@@ -21,7 +21,7 @@
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * @example resampling_audio.c
 | 
			
		||||
 * @example doc/examples/resampling_audio.c
 | 
			
		||||
 * libswresample API use example.
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
@@ -62,7 +62,7 @@ static int get_format_from_sample_fmt(const char **fmt,
 | 
			
		||||
/**
 | 
			
		||||
 * Fill dst buffer with nb_samples, generated starting from t.
 | 
			
		||||
 */
 | 
			
		||||
static void fill_samples(double *dst, int nb_samples, int nb_channels, int sample_rate, double *t)
 | 
			
		||||
void fill_samples(double *dst, int nb_samples, int nb_channels, int sample_rate, double *t)
 | 
			
		||||
{
 | 
			
		||||
    int i, j;
 | 
			
		||||
    double tincr = 1.0 / sample_rate, *dstp = dst;
 | 
			
		||||
@@ -78,6 +78,18 @@ static void fill_samples(double *dst, int nb_samples, int nb_channels, int sampl
 | 
			
		||||
    }
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
int alloc_samples_array_and_data(uint8_t ***data, int *linesize, int nb_channels,
 | 
			
		||||
                                    int nb_samples, enum AVSampleFormat sample_fmt, int align)
 | 
			
		||||
{
 | 
			
		||||
    int nb_planes = av_sample_fmt_is_planar(sample_fmt) ? nb_channels : 1;
 | 
			
		||||
 | 
			
		||||
    *data = av_malloc(sizeof(*data) * nb_planes);
 | 
			
		||||
    if (!*data)
 | 
			
		||||
        return AVERROR(ENOMEM);
 | 
			
		||||
    return av_samples_alloc(*data, linesize, nb_channels,
 | 
			
		||||
                            nb_samples, sample_fmt, align);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
int main(int argc, char **argv)
 | 
			
		||||
{
 | 
			
		||||
    int64_t src_ch_layout = AV_CH_LAYOUT_STEREO, dst_ch_layout = AV_CH_LAYOUT_SURROUND;
 | 
			
		||||
@@ -137,7 +149,7 @@ int main(int argc, char **argv)
 | 
			
		||||
    /* allocate source and destination samples buffers */
 | 
			
		||||
 | 
			
		||||
    src_nb_channels = av_get_channel_layout_nb_channels(src_ch_layout);
 | 
			
		||||
    ret = av_samples_alloc_array_and_samples(&src_data, &src_linesize, src_nb_channels,
 | 
			
		||||
    ret = alloc_samples_array_and_data(&src_data, &src_linesize, src_nb_channels,
 | 
			
		||||
                                       src_nb_samples, src_sample_fmt, 0);
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
        fprintf(stderr, "Could not allocate source samples\n");
 | 
			
		||||
@@ -152,7 +164,7 @@ int main(int argc, char **argv)
 | 
			
		||||
 | 
			
		||||
    /* buffer is going to be directly written to a rawaudio file, no alignment */
 | 
			
		||||
    dst_nb_channels = av_get_channel_layout_nb_channels(dst_ch_layout);
 | 
			
		||||
    ret = av_samples_alloc_array_and_samples(&dst_data, &dst_linesize, dst_nb_channels,
 | 
			
		||||
    ret = alloc_samples_array_and_data(&dst_data, &dst_linesize, dst_nb_channels,
 | 
			
		||||
                                       dst_nb_samples, dst_sample_fmt, 0);
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
        fprintf(stderr, "Could not allocate destination samples\n");
 | 
			
		||||
@@ -168,7 +180,7 @@ int main(int argc, char **argv)
 | 
			
		||||
        dst_nb_samples = av_rescale_rnd(swr_get_delay(swr_ctx, src_rate) +
 | 
			
		||||
                                        src_nb_samples, dst_rate, src_rate, AV_ROUND_UP);
 | 
			
		||||
        if (dst_nb_samples > max_dst_nb_samples) {
 | 
			
		||||
            av_freep(&dst_data[0]);
 | 
			
		||||
            av_free(dst_data[0]);
 | 
			
		||||
            ret = av_samples_alloc(dst_data, &dst_linesize, dst_nb_channels,
 | 
			
		||||
                                   dst_nb_samples, dst_sample_fmt, 1);
 | 
			
		||||
            if (ret < 0)
 | 
			
		||||
@@ -184,10 +196,6 @@ int main(int argc, char **argv)
 | 
			
		||||
        }
 | 
			
		||||
        dst_bufsize = av_samples_get_buffer_size(&dst_linesize, dst_nb_channels,
 | 
			
		||||
                                                 ret, dst_sample_fmt, 1);
 | 
			
		||||
        if (dst_bufsize < 0) {
 | 
			
		||||
            fprintf(stderr, "Could not get sample buffer size\n");
 | 
			
		||||
            goto end;
 | 
			
		||||
        }
 | 
			
		||||
        printf("t:%f in:%d out:%d\n", t, src_nb_samples, ret);
 | 
			
		||||
        fwrite(dst_data[0], 1, dst_bufsize, dst_file);
 | 
			
		||||
    } while (t < 10);
 | 
			
		||||
@@ -199,6 +207,7 @@ int main(int argc, char **argv)
 | 
			
		||||
            fmt, dst_ch_layout, dst_nb_channels, dst_rate, dst_filename);
 | 
			
		||||
 | 
			
		||||
end:
 | 
			
		||||
    if (dst_file)
 | 
			
		||||
        fclose(dst_file);
 | 
			
		||||
 | 
			
		||||
    if (src_data)
 | 
			
		||||
 
 | 
			
		||||
@@ -23,7 +23,7 @@
 | 
			
		||||
/**
 | 
			
		||||
 * @file
 | 
			
		||||
 * libswscale API use example.
 | 
			
		||||
 * @example scaling_video.c
 | 
			
		||||
 * @example doc/examples/scaling_video.c
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
#include <libavutil/imgutils.h>
 | 
			
		||||
@@ -132,6 +132,7 @@ int main(int argc, char **argv)
 | 
			
		||||
           av_get_pix_fmt_name(dst_pix_fmt), dst_w, dst_h, dst_filename);
 | 
			
		||||
 | 
			
		||||
end:
 | 
			
		||||
    if (dst_file)
 | 
			
		||||
        fclose(dst_file);
 | 
			
		||||
    av_freep(&src_data[0]);
 | 
			
		||||
    av_freep(&dst_data[0]);
 | 
			
		||||
 
 | 
			
		||||
@@ -1,770 +0,0 @@
 | 
			
		||||
/*
 | 
			
		||||
 * This file is part of FFmpeg.
 | 
			
		||||
 *
 | 
			
		||||
 * FFmpeg is free software; you can redistribute it and/or
 | 
			
		||||
 * modify it under the terms of the GNU Lesser General Public
 | 
			
		||||
 * License as published by the Free Software Foundation; either
 | 
			
		||||
 * version 2.1 of the License, or (at your option) any later version.
 | 
			
		||||
 *
 | 
			
		||||
 * FFmpeg is distributed in the hope that it will be useful,
 | 
			
		||||
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 | 
			
		||||
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 | 
			
		||||
 * Lesser General Public License for more details.
 | 
			
		||||
 *
 | 
			
		||||
 * You should have received a copy of the GNU Lesser General Public
 | 
			
		||||
 * License along with FFmpeg; if not, write to the Free Software
 | 
			
		||||
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * @file
 | 
			
		||||
 * simple audio converter
 | 
			
		||||
 *
 | 
			
		||||
 * @example transcode_aac.c
 | 
			
		||||
 * Convert an input audio file to AAC in an MP4 container using FFmpeg.
 | 
			
		||||
 * @author Andreas Unterweger (dustsigns@gmail.com)
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
#include <stdio.h>
 | 
			
		||||
 | 
			
		||||
#include "libavformat/avformat.h"
 | 
			
		||||
#include "libavformat/avio.h"
 | 
			
		||||
 | 
			
		||||
#include "libavcodec/avcodec.h"
 | 
			
		||||
 | 
			
		||||
#include "libavutil/audio_fifo.h"
 | 
			
		||||
#include "libavutil/avassert.h"
 | 
			
		||||
#include "libavutil/avstring.h"
 | 
			
		||||
#include "libavutil/frame.h"
 | 
			
		||||
#include "libavutil/opt.h"
 | 
			
		||||
 | 
			
		||||
#include "libswresample/swresample.h"
 | 
			
		||||
 | 
			
		||||
/** The output bit rate in kbit/s */
 | 
			
		||||
#define OUTPUT_BIT_RATE 96000
 | 
			
		||||
/** The number of output channels */
 | 
			
		||||
#define OUTPUT_CHANNELS 2
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * Convert an error code into a text message.
 | 
			
		||||
 * @param error Error code to be converted
 | 
			
		||||
 * @return Corresponding error text (not thread-safe)
 | 
			
		||||
 */
 | 
			
		||||
static const char *get_error_text(const int error)
 | 
			
		||||
{
 | 
			
		||||
    static char error_buffer[255];
 | 
			
		||||
    av_strerror(error, error_buffer, sizeof(error_buffer));
 | 
			
		||||
    return error_buffer;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/** Open an input file and the required decoder. */
 | 
			
		||||
static int open_input_file(const char *filename,
 | 
			
		||||
                           AVFormatContext **input_format_context,
 | 
			
		||||
                           AVCodecContext **input_codec_context)
 | 
			
		||||
{
 | 
			
		||||
    AVCodec *input_codec;
 | 
			
		||||
    int error;
 | 
			
		||||
 | 
			
		||||
    /** Open the input file to read from it. */
 | 
			
		||||
    if ((error = avformat_open_input(input_format_context, filename, NULL,
 | 
			
		||||
                                     NULL)) < 0) {
 | 
			
		||||
        fprintf(stderr, "Could not open input file '%s' (error '%s')\n",
 | 
			
		||||
                filename, get_error_text(error));
 | 
			
		||||
        *input_format_context = NULL;
 | 
			
		||||
        return error;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /** Get information on the input file (number of streams etc.). */
 | 
			
		||||
    if ((error = avformat_find_stream_info(*input_format_context, NULL)) < 0) {
 | 
			
		||||
        fprintf(stderr, "Could not open find stream info (error '%s')\n",
 | 
			
		||||
                get_error_text(error));
 | 
			
		||||
        avformat_close_input(input_format_context);
 | 
			
		||||
        return error;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /** Make sure that there is only one stream in the input file. */
 | 
			
		||||
    if ((*input_format_context)->nb_streams != 1) {
 | 
			
		||||
        fprintf(stderr, "Expected one audio input stream, but found %d\n",
 | 
			
		||||
                (*input_format_context)->nb_streams);
 | 
			
		||||
        avformat_close_input(input_format_context);
 | 
			
		||||
        return AVERROR_EXIT;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /** Find a decoder for the audio stream. */
 | 
			
		||||
    if (!(input_codec = avcodec_find_decoder((*input_format_context)->streams[0]->codec->codec_id))) {
 | 
			
		||||
        fprintf(stderr, "Could not find input codec\n");
 | 
			
		||||
        avformat_close_input(input_format_context);
 | 
			
		||||
        return AVERROR_EXIT;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /** Open the decoder for the audio stream to use it later. */
 | 
			
		||||
    if ((error = avcodec_open2((*input_format_context)->streams[0]->codec,
 | 
			
		||||
                               input_codec, NULL)) < 0) {
 | 
			
		||||
        fprintf(stderr, "Could not open input codec (error '%s')\n",
 | 
			
		||||
                get_error_text(error));
 | 
			
		||||
        avformat_close_input(input_format_context);
 | 
			
		||||
        return error;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /** Save the decoder context for easier access later. */
 | 
			
		||||
    *input_codec_context = (*input_format_context)->streams[0]->codec;
 | 
			
		||||
 | 
			
		||||
    return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * Open an output file and the required encoder.
 | 
			
		||||
 * Also set some basic encoder parameters.
 | 
			
		||||
 * Some of these parameters are based on the input file's parameters.
 | 
			
		||||
 */
 | 
			
		||||
static int open_output_file(const char *filename,
 | 
			
		||||
                            AVCodecContext *input_codec_context,
 | 
			
		||||
                            AVFormatContext **output_format_context,
 | 
			
		||||
                            AVCodecContext **output_codec_context)
 | 
			
		||||
{
 | 
			
		||||
    AVIOContext *output_io_context = NULL;
 | 
			
		||||
    AVStream *stream               = NULL;
 | 
			
		||||
    AVCodec *output_codec          = NULL;
 | 
			
		||||
    int error;
 | 
			
		||||
 | 
			
		||||
    /** Open the output file to write to it. */
 | 
			
		||||
    if ((error = avio_open(&output_io_context, filename,
 | 
			
		||||
                           AVIO_FLAG_WRITE)) < 0) {
 | 
			
		||||
        fprintf(stderr, "Could not open output file '%s' (error '%s')\n",
 | 
			
		||||
                filename, get_error_text(error));
 | 
			
		||||
        return error;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /** Create a new format context for the output container format. */
 | 
			
		||||
    if (!(*output_format_context = avformat_alloc_context())) {
 | 
			
		||||
        fprintf(stderr, "Could not allocate output format context\n");
 | 
			
		||||
        return AVERROR(ENOMEM);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /** Associate the output file (pointer) with the container format context. */
 | 
			
		||||
    (*output_format_context)->pb = output_io_context;
 | 
			
		||||
 | 
			
		||||
    /** Guess the desired container format based on the file extension. */
 | 
			
		||||
    if (!((*output_format_context)->oformat = av_guess_format(NULL, filename,
 | 
			
		||||
                                                              NULL))) {
 | 
			
		||||
        fprintf(stderr, "Could not find output file format\n");
 | 
			
		||||
        goto cleanup;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    av_strlcpy((*output_format_context)->filename, filename,
 | 
			
		||||
               sizeof((*output_format_context)->filename));
 | 
			
		||||
 | 
			
		||||
    /** Find the encoder to be used by its name. */
 | 
			
		||||
    if (!(output_codec = avcodec_find_encoder(AV_CODEC_ID_AAC))) {
 | 
			
		||||
        fprintf(stderr, "Could not find an AAC encoder.\n");
 | 
			
		||||
        goto cleanup;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /** Create a new audio stream in the output file container. */
 | 
			
		||||
    if (!(stream = avformat_new_stream(*output_format_context, output_codec))) {
 | 
			
		||||
        fprintf(stderr, "Could not create new stream\n");
 | 
			
		||||
        error = AVERROR(ENOMEM);
 | 
			
		||||
        goto cleanup;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /** Save the encoder context for easier access later. */
 | 
			
		||||
    *output_codec_context = stream->codec;
 | 
			
		||||
 | 
			
		||||
    /**
 | 
			
		||||
     * Set the basic encoder parameters.
 | 
			
		||||
     * The input file's sample rate is used to avoid a sample rate conversion.
 | 
			
		||||
     */
 | 
			
		||||
    (*output_codec_context)->channels       = OUTPUT_CHANNELS;
 | 
			
		||||
    (*output_codec_context)->channel_layout = av_get_default_channel_layout(OUTPUT_CHANNELS);
 | 
			
		||||
    (*output_codec_context)->sample_rate    = input_codec_context->sample_rate;
 | 
			
		||||
    (*output_codec_context)->sample_fmt     = output_codec->sample_fmts[0];
 | 
			
		||||
    (*output_codec_context)->bit_rate       = OUTPUT_BIT_RATE;
 | 
			
		||||
 | 
			
		||||
    /** Allow the use of the experimental AAC encoder */
 | 
			
		||||
    (*output_codec_context)->strict_std_compliance = FF_COMPLIANCE_EXPERIMENTAL;
 | 
			
		||||
 | 
			
		||||
    /** Set the sample rate for the container. */
 | 
			
		||||
    stream->time_base.den = input_codec_context->sample_rate;
 | 
			
		||||
    stream->time_base.num = 1;
 | 
			
		||||
 | 
			
		||||
    /**
 | 
			
		||||
     * Some container formats (like MP4) require global headers to be present
 | 
			
		||||
     * Mark the encoder so that it behaves accordingly.
 | 
			
		||||
     */
 | 
			
		||||
    if ((*output_format_context)->oformat->flags & AVFMT_GLOBALHEADER)
 | 
			
		||||
        (*output_codec_context)->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
 | 
			
		||||
 | 
			
		||||
    /** Open the encoder for the audio stream to use it later. */
 | 
			
		||||
    if ((error = avcodec_open2(*output_codec_context, output_codec, NULL)) < 0) {
 | 
			
		||||
        fprintf(stderr, "Could not open output codec (error '%s')\n",
 | 
			
		||||
                get_error_text(error));
 | 
			
		||||
        goto cleanup;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    return 0;
 | 
			
		||||
 | 
			
		||||
cleanup:
 | 
			
		||||
    avio_closep(&(*output_format_context)->pb);
 | 
			
		||||
    avformat_free_context(*output_format_context);
 | 
			
		||||
    *output_format_context = NULL;
 | 
			
		||||
    return error < 0 ? error : AVERROR_EXIT;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/** Initialize one data packet for reading or writing. */
 | 
			
		||||
static void init_packet(AVPacket *packet)
 | 
			
		||||
{
 | 
			
		||||
    av_init_packet(packet);
 | 
			
		||||
    /** Set the packet data and size so that it is recognized as being empty. */
 | 
			
		||||
    packet->data = NULL;
 | 
			
		||||
    packet->size = 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/** Initialize one audio frame for reading from the input file */
 | 
			
		||||
static int init_input_frame(AVFrame **frame)
 | 
			
		||||
{
 | 
			
		||||
    if (!(*frame = av_frame_alloc())) {
 | 
			
		||||
        fprintf(stderr, "Could not allocate input frame\n");
 | 
			
		||||
        return AVERROR(ENOMEM);
 | 
			
		||||
    }
 | 
			
		||||
    return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * Initialize the audio resampler based on the input and output codec settings.
 | 
			
		||||
 * If the input and output sample formats differ, a conversion is required
 | 
			
		||||
 * libswresample takes care of this, but requires initialization.
 | 
			
		||||
 */
 | 
			
		||||
static int init_resampler(AVCodecContext *input_codec_context,
 | 
			
		||||
                          AVCodecContext *output_codec_context,
 | 
			
		||||
                          SwrContext **resample_context)
 | 
			
		||||
{
 | 
			
		||||
        int error;
 | 
			
		||||
 | 
			
		||||
        /**
 | 
			
		||||
         * Create a resampler context for the conversion.
 | 
			
		||||
         * Set the conversion parameters.
 | 
			
		||||
         * Default channel layouts based on the number of channels
 | 
			
		||||
         * are assumed for simplicity (they are sometimes not detected
 | 
			
		||||
         * properly by the demuxer and/or decoder).
 | 
			
		||||
         */
 | 
			
		||||
        *resample_context = swr_alloc_set_opts(NULL,
 | 
			
		||||
                                              av_get_default_channel_layout(output_codec_context->channels),
 | 
			
		||||
                                              output_codec_context->sample_fmt,
 | 
			
		||||
                                              output_codec_context->sample_rate,
 | 
			
		||||
                                              av_get_default_channel_layout(input_codec_context->channels),
 | 
			
		||||
                                              input_codec_context->sample_fmt,
 | 
			
		||||
                                              input_codec_context->sample_rate,
 | 
			
		||||
                                              0, NULL);
 | 
			
		||||
        if (!*resample_context) {
 | 
			
		||||
            fprintf(stderr, "Could not allocate resample context\n");
 | 
			
		||||
            return AVERROR(ENOMEM);
 | 
			
		||||
        }
 | 
			
		||||
        /**
 | 
			
		||||
        * Perform a sanity check so that the number of converted samples is
 | 
			
		||||
        * not greater than the number of samples to be converted.
 | 
			
		||||
        * If the sample rates differ, this case has to be handled differently
 | 
			
		||||
        */
 | 
			
		||||
        av_assert0(output_codec_context->sample_rate == input_codec_context->sample_rate);
 | 
			
		||||
 | 
			
		||||
        /** Open the resampler with the specified parameters. */
 | 
			
		||||
        if ((error = swr_init(*resample_context)) < 0) {
 | 
			
		||||
            fprintf(stderr, "Could not open resample context\n");
 | 
			
		||||
            swr_free(resample_context);
 | 
			
		||||
            return error;
 | 
			
		||||
        }
 | 
			
		||||
    return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/** Initialize a FIFO buffer for the audio samples to be encoded. */
 | 
			
		||||
static int init_fifo(AVAudioFifo **fifo, AVCodecContext *output_codec_context)
 | 
			
		||||
{
 | 
			
		||||
    /** Create the FIFO buffer based on the specified output sample format. */
 | 
			
		||||
    if (!(*fifo = av_audio_fifo_alloc(output_codec_context->sample_fmt,
 | 
			
		||||
                                      output_codec_context->channels, 1))) {
 | 
			
		||||
        fprintf(stderr, "Could not allocate FIFO\n");
 | 
			
		||||
        return AVERROR(ENOMEM);
 | 
			
		||||
    }
 | 
			
		||||
    return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/** Write the header of the output file container. */
 | 
			
		||||
static int write_output_file_header(AVFormatContext *output_format_context)
 | 
			
		||||
{
 | 
			
		||||
    int error;
 | 
			
		||||
    if ((error = avformat_write_header(output_format_context, NULL)) < 0) {
 | 
			
		||||
        fprintf(stderr, "Could not write output file header (error '%s')\n",
 | 
			
		||||
                get_error_text(error));
 | 
			
		||||
        return error;
 | 
			
		||||
    }
 | 
			
		||||
    return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/** Decode one audio frame from the input file. */
 | 
			
		||||
static int decode_audio_frame(AVFrame *frame,
 | 
			
		||||
                              AVFormatContext *input_format_context,
 | 
			
		||||
                              AVCodecContext *input_codec_context,
 | 
			
		||||
                              int *data_present, int *finished)
 | 
			
		||||
{
 | 
			
		||||
    /** Packet used for temporary storage. */
 | 
			
		||||
    AVPacket input_packet;
 | 
			
		||||
    int error;
 | 
			
		||||
    init_packet(&input_packet);
 | 
			
		||||
 | 
			
		||||
    /** Read one audio frame from the input file into a temporary packet. */
 | 
			
		||||
    if ((error = av_read_frame(input_format_context, &input_packet)) < 0) {
 | 
			
		||||
        /** If we are at the end of the file, flush the decoder below. */
 | 
			
		||||
        if (error == AVERROR_EOF)
 | 
			
		||||
            *finished = 1;
 | 
			
		||||
        else {
 | 
			
		||||
            fprintf(stderr, "Could not read frame (error '%s')\n",
 | 
			
		||||
                    get_error_text(error));
 | 
			
		||||
            return error;
 | 
			
		||||
        }
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /**
 | 
			
		||||
     * Decode the audio frame stored in the temporary packet.
 | 
			
		||||
     * The input audio stream decoder is used to do this.
 | 
			
		||||
     * If we are at the end of the file, pass an empty packet to the decoder
 | 
			
		||||
     * to flush it.
 | 
			
		||||
     */
 | 
			
		||||
    if ((error = avcodec_decode_audio4(input_codec_context, frame,
 | 
			
		||||
                                       data_present, &input_packet)) < 0) {
 | 
			
		||||
        fprintf(stderr, "Could not decode frame (error '%s')\n",
 | 
			
		||||
                get_error_text(error));
 | 
			
		||||
        av_free_packet(&input_packet);
 | 
			
		||||
        return error;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /**
 | 
			
		||||
     * If the decoder has not been flushed completely, we are not finished,
 | 
			
		||||
     * so that this function has to be called again.
 | 
			
		||||
     */
 | 
			
		||||
    if (*finished && *data_present)
 | 
			
		||||
        *finished = 0;
 | 
			
		||||
    av_free_packet(&input_packet);
 | 
			
		||||
    return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * Initialize a temporary storage for the specified number of audio samples.
 | 
			
		||||
 * The conversion requires temporary storage due to the different format.
 | 
			
		||||
 * The number of audio samples to be allocated is specified in frame_size.
 | 
			
		||||
 */
 | 
			
		||||
static int init_converted_samples(uint8_t ***converted_input_samples,
 | 
			
		||||
                                  AVCodecContext *output_codec_context,
 | 
			
		||||
                                  int frame_size)
 | 
			
		||||
{
 | 
			
		||||
    int error;
 | 
			
		||||
 | 
			
		||||
    /**
 | 
			
		||||
     * Allocate as many pointers as there are audio channels.
 | 
			
		||||
     * Each pointer will later point to the audio samples of the corresponding
 | 
			
		||||
     * channels (although it may be NULL for interleaved formats).
 | 
			
		||||
     */
 | 
			
		||||
    if (!(*converted_input_samples = calloc(output_codec_context->channels,
 | 
			
		||||
                                            sizeof(**converted_input_samples)))) {
 | 
			
		||||
        fprintf(stderr, "Could not allocate converted input sample pointers\n");
 | 
			
		||||
        return AVERROR(ENOMEM);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /**
 | 
			
		||||
     * Allocate memory for the samples of all channels in one consecutive
 | 
			
		||||
     * block for convenience.
 | 
			
		||||
     */
 | 
			
		||||
    if ((error = av_samples_alloc(*converted_input_samples, NULL,
 | 
			
		||||
                                  output_codec_context->channels,
 | 
			
		||||
                                  frame_size,
 | 
			
		||||
                                  output_codec_context->sample_fmt, 0)) < 0) {
 | 
			
		||||
        fprintf(stderr,
 | 
			
		||||
                "Could not allocate converted input samples (error '%s')\n",
 | 
			
		||||
                get_error_text(error));
 | 
			
		||||
        av_freep(&(*converted_input_samples)[0]);
 | 
			
		||||
        free(*converted_input_samples);
 | 
			
		||||
        return error;
 | 
			
		||||
    }
 | 
			
		||||
    return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * Convert the input audio samples into the output sample format.
 | 
			
		||||
 * The conversion happens on a per-frame basis, the size of which is specified
 | 
			
		||||
 * by frame_size.
 | 
			
		||||
 */
 | 
			
		||||
static int convert_samples(const uint8_t **input_data,
 | 
			
		||||
                           uint8_t **converted_data, const int frame_size,
 | 
			
		||||
                           SwrContext *resample_context)
 | 
			
		||||
{
 | 
			
		||||
    int error;
 | 
			
		||||
 | 
			
		||||
    /** Convert the samples using the resampler. */
 | 
			
		||||
    if ((error = swr_convert(resample_context,
 | 
			
		||||
                             converted_data, frame_size,
 | 
			
		||||
                             input_data    , frame_size)) < 0) {
 | 
			
		||||
        fprintf(stderr, "Could not convert input samples (error '%s')\n",
 | 
			
		||||
                get_error_text(error));
 | 
			
		||||
        return error;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/** Add converted input audio samples to the FIFO buffer for later processing. */
 | 
			
		||||
static int add_samples_to_fifo(AVAudioFifo *fifo,
 | 
			
		||||
                               uint8_t **converted_input_samples,
 | 
			
		||||
                               const int frame_size)
 | 
			
		||||
{
 | 
			
		||||
    int error;
 | 
			
		||||
 | 
			
		||||
    /**
 | 
			
		||||
     * Make the FIFO as large as it needs to be to hold both,
 | 
			
		||||
     * the old and the new samples.
 | 
			
		||||
     */
 | 
			
		||||
    if ((error = av_audio_fifo_realloc(fifo, av_audio_fifo_size(fifo) + frame_size)) < 0) {
 | 
			
		||||
        fprintf(stderr, "Could not reallocate FIFO\n");
 | 
			
		||||
        return error;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /** Store the new samples in the FIFO buffer. */
 | 
			
		||||
    if (av_audio_fifo_write(fifo, (void **)converted_input_samples,
 | 
			
		||||
                            frame_size) < frame_size) {
 | 
			
		||||
        fprintf(stderr, "Could not write data to FIFO\n");
 | 
			
		||||
        return AVERROR_EXIT;
 | 
			
		||||
    }
 | 
			
		||||
    return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * Read one audio frame from the input file, decodes, converts and stores
 | 
			
		||||
 * it in the FIFO buffer.
 | 
			
		||||
 */
 | 
			
		||||
static int read_decode_convert_and_store(AVAudioFifo *fifo,
 | 
			
		||||
                                         AVFormatContext *input_format_context,
 | 
			
		||||
                                         AVCodecContext *input_codec_context,
 | 
			
		||||
                                         AVCodecContext *output_codec_context,
 | 
			
		||||
                                         SwrContext *resampler_context,
 | 
			
		||||
                                         int *finished)
 | 
			
		||||
{
 | 
			
		||||
    /** Temporary storage of the input samples of the frame read from the file. */
 | 
			
		||||
    AVFrame *input_frame = NULL;
 | 
			
		||||
    /** Temporary storage for the converted input samples. */
 | 
			
		||||
    uint8_t **converted_input_samples = NULL;
 | 
			
		||||
    int data_present;
 | 
			
		||||
    int ret = AVERROR_EXIT;
 | 
			
		||||
 | 
			
		||||
    /** Initialize temporary storage for one input frame. */
 | 
			
		||||
    if (init_input_frame(&input_frame))
 | 
			
		||||
        goto cleanup;
 | 
			
		||||
    /** Decode one frame worth of audio samples. */
 | 
			
		||||
    if (decode_audio_frame(input_frame, input_format_context,
 | 
			
		||||
                           input_codec_context, &data_present, finished))
 | 
			
		||||
        goto cleanup;
 | 
			
		||||
    /**
 | 
			
		||||
     * If we are at the end of the file and there are no more samples
 | 
			
		||||
     * in the decoder which are delayed, we are actually finished.
 | 
			
		||||
     * This must not be treated as an error.
 | 
			
		||||
     */
 | 
			
		||||
    if (*finished && !data_present) {
 | 
			
		||||
        ret = 0;
 | 
			
		||||
        goto cleanup;
 | 
			
		||||
    }
 | 
			
		||||
    /** If there is decoded data, convert and store it */
 | 
			
		||||
    if (data_present) {
 | 
			
		||||
        /** Initialize the temporary storage for the converted input samples. */
 | 
			
		||||
        if (init_converted_samples(&converted_input_samples, output_codec_context,
 | 
			
		||||
                                   input_frame->nb_samples))
 | 
			
		||||
            goto cleanup;
 | 
			
		||||
 | 
			
		||||
        /**
 | 
			
		||||
         * Convert the input samples to the desired output sample format.
 | 
			
		||||
         * This requires a temporary storage provided by converted_input_samples.
 | 
			
		||||
         */
 | 
			
		||||
        if (convert_samples((const uint8_t**)input_frame->extended_data, converted_input_samples,
 | 
			
		||||
                            input_frame->nb_samples, resampler_context))
 | 
			
		||||
            goto cleanup;
 | 
			
		||||
 | 
			
		||||
        /** Add the converted input samples to the FIFO buffer for later processing. */
 | 
			
		||||
        if (add_samples_to_fifo(fifo, converted_input_samples,
 | 
			
		||||
                                input_frame->nb_samples))
 | 
			
		||||
            goto cleanup;
 | 
			
		||||
        ret = 0;
 | 
			
		||||
    }
 | 
			
		||||
    ret = 0;
 | 
			
		||||
 | 
			
		||||
cleanup:
 | 
			
		||||
    if (converted_input_samples) {
 | 
			
		||||
        av_freep(&converted_input_samples[0]);
 | 
			
		||||
        free(converted_input_samples);
 | 
			
		||||
    }
 | 
			
		||||
    av_frame_free(&input_frame);
 | 
			
		||||
 | 
			
		||||
    return ret;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * Initialize one input frame for writing to the output file.
 | 
			
		||||
 * The frame will be exactly frame_size samples large.
 | 
			
		||||
 */
 | 
			
		||||
static int init_output_frame(AVFrame **frame,
 | 
			
		||||
                             AVCodecContext *output_codec_context,
 | 
			
		||||
                             int frame_size)
 | 
			
		||||
{
 | 
			
		||||
    int error;
 | 
			
		||||
 | 
			
		||||
    /** Create a new frame to store the audio samples. */
 | 
			
		||||
    if (!(*frame = av_frame_alloc())) {
 | 
			
		||||
        fprintf(stderr, "Could not allocate output frame\n");
 | 
			
		||||
        return AVERROR_EXIT;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /**
 | 
			
		||||
     * Set the frame's parameters, especially its size and format.
 | 
			
		||||
     * av_frame_get_buffer needs this to allocate memory for the
 | 
			
		||||
     * audio samples of the frame.
 | 
			
		||||
     * Default channel layouts based on the number of channels
 | 
			
		||||
     * are assumed for simplicity.
 | 
			
		||||
     */
 | 
			
		||||
    (*frame)->nb_samples     = frame_size;
 | 
			
		||||
    (*frame)->channel_layout = output_codec_context->channel_layout;
 | 
			
		||||
    (*frame)->format         = output_codec_context->sample_fmt;
 | 
			
		||||
    (*frame)->sample_rate    = output_codec_context->sample_rate;
 | 
			
		||||
 | 
			
		||||
    /**
 | 
			
		||||
     * Allocate the samples of the created frame. This call will make
 | 
			
		||||
     * sure that the audio frame can hold as many samples as specified.
 | 
			
		||||
     */
 | 
			
		||||
    if ((error = av_frame_get_buffer(*frame, 0)) < 0) {
 | 
			
		||||
        fprintf(stderr, "Could allocate output frame samples (error '%s')\n",
 | 
			
		||||
                get_error_text(error));
 | 
			
		||||
        av_frame_free(frame);
 | 
			
		||||
        return error;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/** Global timestamp for the audio frames */
 | 
			
		||||
static int64_t pts = 0;
 | 
			
		||||
 | 
			
		||||
/** Encode one frame worth of audio to the output file. */
 | 
			
		||||
static int encode_audio_frame(AVFrame *frame,
 | 
			
		||||
                              AVFormatContext *output_format_context,
 | 
			
		||||
                              AVCodecContext *output_codec_context,
 | 
			
		||||
                              int *data_present)
 | 
			
		||||
{
 | 
			
		||||
    /** Packet used for temporary storage. */
 | 
			
		||||
    AVPacket output_packet;
 | 
			
		||||
    int error;
 | 
			
		||||
    init_packet(&output_packet);
 | 
			
		||||
 | 
			
		||||
    /** Set a timestamp based on the sample rate for the container. */
 | 
			
		||||
    if (frame) {
 | 
			
		||||
        frame->pts = pts;
 | 
			
		||||
        pts += frame->nb_samples;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /**
 | 
			
		||||
     * Encode the audio frame and store it in the temporary packet.
 | 
			
		||||
     * The output audio stream encoder is used to do this.
 | 
			
		||||
     */
 | 
			
		||||
    if ((error = avcodec_encode_audio2(output_codec_context, &output_packet,
 | 
			
		||||
                                       frame, data_present)) < 0) {
 | 
			
		||||
        fprintf(stderr, "Could not encode frame (error '%s')\n",
 | 
			
		||||
                get_error_text(error));
 | 
			
		||||
        av_free_packet(&output_packet);
 | 
			
		||||
        return error;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /** Write one audio frame from the temporary packet to the output file. */
 | 
			
		||||
    if (*data_present) {
 | 
			
		||||
        if ((error = av_write_frame(output_format_context, &output_packet)) < 0) {
 | 
			
		||||
            fprintf(stderr, "Could not write frame (error '%s')\n",
 | 
			
		||||
                    get_error_text(error));
 | 
			
		||||
            av_free_packet(&output_packet);
 | 
			
		||||
            return error;
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        av_free_packet(&output_packet);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * Load one audio frame from the FIFO buffer, encode and write it to the
 | 
			
		||||
 * output file.
 | 
			
		||||
 */
 | 
			
		||||
static int load_encode_and_write(AVAudioFifo *fifo,
 | 
			
		||||
                                 AVFormatContext *output_format_context,
 | 
			
		||||
                                 AVCodecContext *output_codec_context)
 | 
			
		||||
{
 | 
			
		||||
    /** Temporary storage of the output samples of the frame written to the file. */
 | 
			
		||||
    AVFrame *output_frame;
 | 
			
		||||
    /**
 | 
			
		||||
     * Use the maximum number of possible samples per frame.
 | 
			
		||||
     * If there is less than the maximum possible frame size in the FIFO
 | 
			
		||||
     * buffer use this number. Otherwise, use the maximum possible frame size
 | 
			
		||||
     */
 | 
			
		||||
    const int frame_size = FFMIN(av_audio_fifo_size(fifo),
 | 
			
		||||
                                 output_codec_context->frame_size);
 | 
			
		||||
    int data_written;
 | 
			
		||||
 | 
			
		||||
    /** Initialize temporary storage for one output frame. */
 | 
			
		||||
    if (init_output_frame(&output_frame, output_codec_context, frame_size))
 | 
			
		||||
        return AVERROR_EXIT;
 | 
			
		||||
 | 
			
		||||
    /**
 | 
			
		||||
     * Read as many samples from the FIFO buffer as required to fill the frame.
 | 
			
		||||
     * The samples are stored in the frame temporarily.
 | 
			
		||||
     */
 | 
			
		||||
    if (av_audio_fifo_read(fifo, (void **)output_frame->data, frame_size) < frame_size) {
 | 
			
		||||
        fprintf(stderr, "Could not read data from FIFO\n");
 | 
			
		||||
        av_frame_free(&output_frame);
 | 
			
		||||
        return AVERROR_EXIT;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /** Encode one frame worth of audio samples. */
 | 
			
		||||
    if (encode_audio_frame(output_frame, output_format_context,
 | 
			
		||||
                           output_codec_context, &data_written)) {
 | 
			
		||||
        av_frame_free(&output_frame);
 | 
			
		||||
        return AVERROR_EXIT;
 | 
			
		||||
    }
 | 
			
		||||
    av_frame_free(&output_frame);
 | 
			
		||||
    return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/** Write the trailer of the output file container. */
 | 
			
		||||
static int write_output_file_trailer(AVFormatContext *output_format_context)
 | 
			
		||||
{
 | 
			
		||||
    int error;
 | 
			
		||||
    if ((error = av_write_trailer(output_format_context)) < 0) {
 | 
			
		||||
        fprintf(stderr, "Could not write output file trailer (error '%s')\n",
 | 
			
		||||
                get_error_text(error));
 | 
			
		||||
        return error;
 | 
			
		||||
    }
 | 
			
		||||
    return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
/** Convert an audio file to an AAC file in an MP4 container. */
 | 
			
		||||
int main(int argc, char **argv)
 | 
			
		||||
{
 | 
			
		||||
    AVFormatContext *input_format_context = NULL, *output_format_context = NULL;
 | 
			
		||||
    AVCodecContext *input_codec_context = NULL, *output_codec_context = NULL;
 | 
			
		||||
    SwrContext *resample_context = NULL;
 | 
			
		||||
    AVAudioFifo *fifo = NULL;
 | 
			
		||||
    int ret = AVERROR_EXIT;
 | 
			
		||||
 | 
			
		||||
    if (argc < 3) {
 | 
			
		||||
        fprintf(stderr, "Usage: %s <input file> <output file>\n", argv[0]);
 | 
			
		||||
        exit(1);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /** Register all codecs and formats so that they can be used. */
 | 
			
		||||
    av_register_all();
 | 
			
		||||
    /** Open the input file for reading. */
 | 
			
		||||
    if (open_input_file(argv[1], &input_format_context,
 | 
			
		||||
                        &input_codec_context))
 | 
			
		||||
        goto cleanup;
 | 
			
		||||
    /** Open the output file for writing. */
 | 
			
		||||
    if (open_output_file(argv[2], input_codec_context,
 | 
			
		||||
                         &output_format_context, &output_codec_context))
 | 
			
		||||
        goto cleanup;
 | 
			
		||||
    /** Initialize the resampler to be able to convert audio sample formats. */
 | 
			
		||||
    if (init_resampler(input_codec_context, output_codec_context,
 | 
			
		||||
                       &resample_context))
 | 
			
		||||
        goto cleanup;
 | 
			
		||||
    /** Initialize the FIFO buffer to store audio samples to be encoded. */
 | 
			
		||||
    if (init_fifo(&fifo, output_codec_context))
 | 
			
		||||
        goto cleanup;
 | 
			
		||||
    /** Write the header of the output file container. */
 | 
			
		||||
    if (write_output_file_header(output_format_context))
 | 
			
		||||
        goto cleanup;
 | 
			
		||||
 | 
			
		||||
    /**
 | 
			
		||||
     * Loop as long as we have input samples to read or output samples
 | 
			
		||||
     * to write; abort as soon as we have neither.
 | 
			
		||||
     */
 | 
			
		||||
    while (1) {
 | 
			
		||||
        /** Use the encoder's desired frame size for processing. */
 | 
			
		||||
        const int output_frame_size = output_codec_context->frame_size;
 | 
			
		||||
        int finished                = 0;
 | 
			
		||||
 | 
			
		||||
        /**
 | 
			
		||||
         * Make sure that there is one frame worth of samples in the FIFO
 | 
			
		||||
         * buffer so that the encoder can do its work.
 | 
			
		||||
         * Since the decoder's and the encoder's frame size may differ, we
 | 
			
		||||
         * need to FIFO buffer to store as many frames worth of input samples
 | 
			
		||||
         * that they make up at least one frame worth of output samples.
 | 
			
		||||
         */
 | 
			
		||||
        while (av_audio_fifo_size(fifo) < output_frame_size) {
 | 
			
		||||
            /**
 | 
			
		||||
             * Decode one frame worth of audio samples, convert it to the
 | 
			
		||||
             * output sample format and put it into the FIFO buffer.
 | 
			
		||||
             */
 | 
			
		||||
            if (read_decode_convert_and_store(fifo, input_format_context,
 | 
			
		||||
                                              input_codec_context,
 | 
			
		||||
                                              output_codec_context,
 | 
			
		||||
                                              resample_context, &finished))
 | 
			
		||||
                goto cleanup;
 | 
			
		||||
 | 
			
		||||
            /**
 | 
			
		||||
             * If we are at the end of the input file, we continue
 | 
			
		||||
             * encoding the remaining audio samples to the output file.
 | 
			
		||||
             */
 | 
			
		||||
            if (finished)
 | 
			
		||||
                break;
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        /**
 | 
			
		||||
         * If we have enough samples for the encoder, we encode them.
 | 
			
		||||
         * At the end of the file, we pass the remaining samples to
 | 
			
		||||
         * the encoder.
 | 
			
		||||
         */
 | 
			
		||||
        while (av_audio_fifo_size(fifo) >= output_frame_size ||
 | 
			
		||||
               (finished && av_audio_fifo_size(fifo) > 0))
 | 
			
		||||
            /**
 | 
			
		||||
             * Take one frame worth of audio samples from the FIFO buffer,
 | 
			
		||||
             * encode it and write it to the output file.
 | 
			
		||||
             */
 | 
			
		||||
            if (load_encode_and_write(fifo, output_format_context,
 | 
			
		||||
                                      output_codec_context))
 | 
			
		||||
                goto cleanup;
 | 
			
		||||
 | 
			
		||||
        /**
 | 
			
		||||
         * If we are at the end of the input file and have encoded
 | 
			
		||||
         * all remaining samples, we can exit this loop and finish.
 | 
			
		||||
         */
 | 
			
		||||
        if (finished) {
 | 
			
		||||
            int data_written;
 | 
			
		||||
            /** Flush the encoder as it may have delayed frames. */
 | 
			
		||||
            do {
 | 
			
		||||
                if (encode_audio_frame(NULL, output_format_context,
 | 
			
		||||
                                       output_codec_context, &data_written))
 | 
			
		||||
                    goto cleanup;
 | 
			
		||||
            } while (data_written);
 | 
			
		||||
            break;
 | 
			
		||||
        }
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /** Write the trailer of the output file container. */
 | 
			
		||||
    if (write_output_file_trailer(output_format_context))
 | 
			
		||||
        goto cleanup;
 | 
			
		||||
    ret = 0;
 | 
			
		||||
 | 
			
		||||
cleanup:
 | 
			
		||||
    if (fifo)
 | 
			
		||||
        av_audio_fifo_free(fifo);
 | 
			
		||||
    swr_free(&resample_context);
 | 
			
		||||
    if (output_codec_context)
 | 
			
		||||
        avcodec_close(output_codec_context);
 | 
			
		||||
    if (output_format_context) {
 | 
			
		||||
        avio_closep(&output_format_context->pb);
 | 
			
		||||
        avformat_free_context(output_format_context);
 | 
			
		||||
    }
 | 
			
		||||
    if (input_codec_context)
 | 
			
		||||
        avcodec_close(input_codec_context);
 | 
			
		||||
    if (input_format_context)
 | 
			
		||||
        avformat_close_input(&input_format_context);
 | 
			
		||||
 | 
			
		||||
    return ret;
 | 
			
		||||
}
 | 
			
		||||
@@ -1,583 +0,0 @@
 | 
			
		||||
/*
 | 
			
		||||
 * Copyright (c) 2010 Nicolas George
 | 
			
		||||
 * Copyright (c) 2011 Stefano Sabatini
 | 
			
		||||
 * Copyright (c) 2014 Andrey Utkin
 | 
			
		||||
 *
 | 
			
		||||
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 | 
			
		||||
 * of this software and associated documentation files (the "Software"), to deal
 | 
			
		||||
 * in the Software without restriction, including without limitation the rights
 | 
			
		||||
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 | 
			
		||||
 * copies of the Software, and to permit persons to whom the Software is
 | 
			
		||||
 * furnished to do so, subject to the following conditions:
 | 
			
		||||
 *
 | 
			
		||||
 * The above copyright notice and this permission notice shall be included in
 | 
			
		||||
 * all copies or substantial portions of the Software.
 | 
			
		||||
 *
 | 
			
		||||
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 | 
			
		||||
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 | 
			
		||||
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 | 
			
		||||
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 | 
			
		||||
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 | 
			
		||||
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 | 
			
		||||
 * THE SOFTWARE.
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
/**
 | 
			
		||||
 * @file
 | 
			
		||||
 * API example for demuxing, decoding, filtering, encoding and muxing
 | 
			
		||||
 * @example transcoding.c
 | 
			
		||||
 */
 | 
			
		||||
 | 
			
		||||
#include <libavcodec/avcodec.h>
 | 
			
		||||
#include <libavformat/avformat.h>
 | 
			
		||||
#include <libavfilter/avfiltergraph.h>
 | 
			
		||||
#include <libavfilter/avcodec.h>
 | 
			
		||||
#include <libavfilter/buffersink.h>
 | 
			
		||||
#include <libavfilter/buffersrc.h>
 | 
			
		||||
#include <libavutil/opt.h>
 | 
			
		||||
#include <libavutil/pixdesc.h>
 | 
			
		||||
 | 
			
		||||
static AVFormatContext *ifmt_ctx;
 | 
			
		||||
static AVFormatContext *ofmt_ctx;
 | 
			
		||||
typedef struct FilteringContext {
 | 
			
		||||
    AVFilterContext *buffersink_ctx;
 | 
			
		||||
    AVFilterContext *buffersrc_ctx;
 | 
			
		||||
    AVFilterGraph *filter_graph;
 | 
			
		||||
} FilteringContext;
 | 
			
		||||
static FilteringContext *filter_ctx;
 | 
			
		||||
 | 
			
		||||
static int open_input_file(const char *filename)
 | 
			
		||||
{
 | 
			
		||||
    int ret;
 | 
			
		||||
    unsigned int i;
 | 
			
		||||
 | 
			
		||||
    ifmt_ctx = NULL;
 | 
			
		||||
    if ((ret = avformat_open_input(&ifmt_ctx, filename, NULL, NULL)) < 0) {
 | 
			
		||||
        av_log(NULL, AV_LOG_ERROR, "Cannot open input file\n");
 | 
			
		||||
        return ret;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    if ((ret = avformat_find_stream_info(ifmt_ctx, NULL)) < 0) {
 | 
			
		||||
        av_log(NULL, AV_LOG_ERROR, "Cannot find stream information\n");
 | 
			
		||||
        return ret;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    for (i = 0; i < ifmt_ctx->nb_streams; i++) {
 | 
			
		||||
        AVStream *stream;
 | 
			
		||||
        AVCodecContext *codec_ctx;
 | 
			
		||||
        stream = ifmt_ctx->streams[i];
 | 
			
		||||
        codec_ctx = stream->codec;
 | 
			
		||||
        /* Reencode video & audio and remux subtitles etc. */
 | 
			
		||||
        if (codec_ctx->codec_type == AVMEDIA_TYPE_VIDEO
 | 
			
		||||
                || codec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) {
 | 
			
		||||
            /* Open decoder */
 | 
			
		||||
            ret = avcodec_open2(codec_ctx,
 | 
			
		||||
                    avcodec_find_decoder(codec_ctx->codec_id), NULL);
 | 
			
		||||
            if (ret < 0) {
 | 
			
		||||
                av_log(NULL, AV_LOG_ERROR, "Failed to open decoder for stream #%u\n", i);
 | 
			
		||||
                return ret;
 | 
			
		||||
            }
 | 
			
		||||
        }
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    av_dump_format(ifmt_ctx, 0, filename, 0);
 | 
			
		||||
    return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static int open_output_file(const char *filename)
 | 
			
		||||
{
 | 
			
		||||
    AVStream *out_stream;
 | 
			
		||||
    AVStream *in_stream;
 | 
			
		||||
    AVCodecContext *dec_ctx, *enc_ctx;
 | 
			
		||||
    AVCodec *encoder;
 | 
			
		||||
    int ret;
 | 
			
		||||
    unsigned int i;
 | 
			
		||||
 | 
			
		||||
    ofmt_ctx = NULL;
 | 
			
		||||
    avformat_alloc_output_context2(&ofmt_ctx, NULL, NULL, filename);
 | 
			
		||||
    if (!ofmt_ctx) {
 | 
			
		||||
        av_log(NULL, AV_LOG_ERROR, "Could not create output context\n");
 | 
			
		||||
        return AVERROR_UNKNOWN;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
    for (i = 0; i < ifmt_ctx->nb_streams; i++) {
 | 
			
		||||
        out_stream = avformat_new_stream(ofmt_ctx, NULL);
 | 
			
		||||
        if (!out_stream) {
 | 
			
		||||
            av_log(NULL, AV_LOG_ERROR, "Failed allocating output stream\n");
 | 
			
		||||
            return AVERROR_UNKNOWN;
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        in_stream = ifmt_ctx->streams[i];
 | 
			
		||||
        dec_ctx = in_stream->codec;
 | 
			
		||||
        enc_ctx = out_stream->codec;
 | 
			
		||||
 | 
			
		||||
        if (dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO
 | 
			
		||||
                || dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) {
 | 
			
		||||
            /* in this example, we choose transcoding to same codec */
 | 
			
		||||
            encoder = avcodec_find_encoder(dec_ctx->codec_id);
 | 
			
		||||
            if (!encoder) {
 | 
			
		||||
                av_log(NULL, AV_LOG_FATAL, "Necessary encoder not found\n");
 | 
			
		||||
                return AVERROR_INVALIDDATA;
 | 
			
		||||
            }
 | 
			
		||||
 | 
			
		||||
            /* In this example, we transcode to same properties (picture size,
 | 
			
		||||
             * sample rate etc.). These properties can be changed for output
 | 
			
		||||
             * streams easily using filters */
 | 
			
		||||
            if (dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
 | 
			
		||||
                enc_ctx->height = dec_ctx->height;
 | 
			
		||||
                enc_ctx->width = dec_ctx->width;
 | 
			
		||||
                enc_ctx->sample_aspect_ratio = dec_ctx->sample_aspect_ratio;
 | 
			
		||||
                /* take first format from list of supported formats */
 | 
			
		||||
                enc_ctx->pix_fmt = encoder->pix_fmts[0];
 | 
			
		||||
                /* video time_base can be set to whatever is handy and supported by encoder */
 | 
			
		||||
                enc_ctx->time_base = dec_ctx->time_base;
 | 
			
		||||
            } else {
 | 
			
		||||
                enc_ctx->sample_rate = dec_ctx->sample_rate;
 | 
			
		||||
                enc_ctx->channel_layout = dec_ctx->channel_layout;
 | 
			
		||||
                enc_ctx->channels = av_get_channel_layout_nb_channels(enc_ctx->channel_layout);
 | 
			
		||||
                /* take first format from list of supported formats */
 | 
			
		||||
                enc_ctx->sample_fmt = encoder->sample_fmts[0];
 | 
			
		||||
                enc_ctx->time_base = (AVRational){1, enc_ctx->sample_rate};
 | 
			
		||||
            }
 | 
			
		||||
 | 
			
		||||
            /* Third parameter can be used to pass settings to encoder */
 | 
			
		||||
            ret = avcodec_open2(enc_ctx, encoder, NULL);
 | 
			
		||||
            if (ret < 0) {
 | 
			
		||||
                av_log(NULL, AV_LOG_ERROR, "Cannot open video encoder for stream #%u\n", i);
 | 
			
		||||
                return ret;
 | 
			
		||||
            }
 | 
			
		||||
        } else if (dec_ctx->codec_type == AVMEDIA_TYPE_UNKNOWN) {
 | 
			
		||||
            av_log(NULL, AV_LOG_FATAL, "Elementary stream #%d is of unknown type, cannot proceed\n", i);
 | 
			
		||||
            return AVERROR_INVALIDDATA;
 | 
			
		||||
        } else {
 | 
			
		||||
            /* if this stream must be remuxed */
 | 
			
		||||
            ret = avcodec_copy_context(ofmt_ctx->streams[i]->codec,
 | 
			
		||||
                    ifmt_ctx->streams[i]->codec);
 | 
			
		||||
            if (ret < 0) {
 | 
			
		||||
                av_log(NULL, AV_LOG_ERROR, "Copying stream context failed\n");
 | 
			
		||||
                return ret;
 | 
			
		||||
            }
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        if (ofmt_ctx->oformat->flags & AVFMT_GLOBALHEADER)
 | 
			
		||||
            enc_ctx->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
 | 
			
		||||
 | 
			
		||||
    }
 | 
			
		||||
    av_dump_format(ofmt_ctx, 0, filename, 1);
 | 
			
		||||
 | 
			
		||||
    if (!(ofmt_ctx->oformat->flags & AVFMT_NOFILE)) {
 | 
			
		||||
        ret = avio_open(&ofmt_ctx->pb, filename, AVIO_FLAG_WRITE);
 | 
			
		||||
        if (ret < 0) {
 | 
			
		||||
            av_log(NULL, AV_LOG_ERROR, "Could not open output file '%s'", filename);
 | 
			
		||||
            return ret;
 | 
			
		||||
        }
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* init muxer, write output file header */
 | 
			
		||||
    ret = avformat_write_header(ofmt_ctx, NULL);
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
        av_log(NULL, AV_LOG_ERROR, "Error occurred when opening output file\n");
 | 
			
		||||
        return ret;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static int init_filter(FilteringContext* fctx, AVCodecContext *dec_ctx,
 | 
			
		||||
        AVCodecContext *enc_ctx, const char *filter_spec)
 | 
			
		||||
{
 | 
			
		||||
    char args[512];
 | 
			
		||||
    int ret = 0;
 | 
			
		||||
    AVFilter *buffersrc = NULL;
 | 
			
		||||
    AVFilter *buffersink = NULL;
 | 
			
		||||
    AVFilterContext *buffersrc_ctx = NULL;
 | 
			
		||||
    AVFilterContext *buffersink_ctx = NULL;
 | 
			
		||||
    AVFilterInOut *outputs = avfilter_inout_alloc();
 | 
			
		||||
    AVFilterInOut *inputs  = avfilter_inout_alloc();
 | 
			
		||||
    AVFilterGraph *filter_graph = avfilter_graph_alloc();
 | 
			
		||||
 | 
			
		||||
    if (!outputs || !inputs || !filter_graph) {
 | 
			
		||||
        ret = AVERROR(ENOMEM);
 | 
			
		||||
        goto end;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    if (dec_ctx->codec_type == AVMEDIA_TYPE_VIDEO) {
 | 
			
		||||
        buffersrc = avfilter_get_by_name("buffer");
 | 
			
		||||
        buffersink = avfilter_get_by_name("buffersink");
 | 
			
		||||
        if (!buffersrc || !buffersink) {
 | 
			
		||||
            av_log(NULL, AV_LOG_ERROR, "filtering source or sink element not found\n");
 | 
			
		||||
            ret = AVERROR_UNKNOWN;
 | 
			
		||||
            goto end;
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        snprintf(args, sizeof(args),
 | 
			
		||||
                "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d",
 | 
			
		||||
                dec_ctx->width, dec_ctx->height, dec_ctx->pix_fmt,
 | 
			
		||||
                dec_ctx->time_base.num, dec_ctx->time_base.den,
 | 
			
		||||
                dec_ctx->sample_aspect_ratio.num,
 | 
			
		||||
                dec_ctx->sample_aspect_ratio.den);
 | 
			
		||||
 | 
			
		||||
        ret = avfilter_graph_create_filter(&buffersrc_ctx, buffersrc, "in",
 | 
			
		||||
                args, NULL, filter_graph);
 | 
			
		||||
        if (ret < 0) {
 | 
			
		||||
            av_log(NULL, AV_LOG_ERROR, "Cannot create buffer source\n");
 | 
			
		||||
            goto end;
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out",
 | 
			
		||||
                NULL, NULL, filter_graph);
 | 
			
		||||
        if (ret < 0) {
 | 
			
		||||
            av_log(NULL, AV_LOG_ERROR, "Cannot create buffer sink\n");
 | 
			
		||||
            goto end;
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        ret = av_opt_set_bin(buffersink_ctx, "pix_fmts",
 | 
			
		||||
                (uint8_t*)&enc_ctx->pix_fmt, sizeof(enc_ctx->pix_fmt),
 | 
			
		||||
                AV_OPT_SEARCH_CHILDREN);
 | 
			
		||||
        if (ret < 0) {
 | 
			
		||||
            av_log(NULL, AV_LOG_ERROR, "Cannot set output pixel format\n");
 | 
			
		||||
            goto end;
 | 
			
		||||
        }
 | 
			
		||||
    } else if (dec_ctx->codec_type == AVMEDIA_TYPE_AUDIO) {
 | 
			
		||||
        buffersrc = avfilter_get_by_name("abuffer");
 | 
			
		||||
        buffersink = avfilter_get_by_name("abuffersink");
 | 
			
		||||
        if (!buffersrc || !buffersink) {
 | 
			
		||||
            av_log(NULL, AV_LOG_ERROR, "filtering source or sink element not found\n");
 | 
			
		||||
            ret = AVERROR_UNKNOWN;
 | 
			
		||||
            goto end;
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        if (!dec_ctx->channel_layout)
 | 
			
		||||
            dec_ctx->channel_layout =
 | 
			
		||||
                av_get_default_channel_layout(dec_ctx->channels);
 | 
			
		||||
        snprintf(args, sizeof(args),
 | 
			
		||||
                "time_base=%d/%d:sample_rate=%d:sample_fmt=%s:channel_layout=0x%"PRIx64,
 | 
			
		||||
                dec_ctx->time_base.num, dec_ctx->time_base.den, dec_ctx->sample_rate,
 | 
			
		||||
                av_get_sample_fmt_name(dec_ctx->sample_fmt),
 | 
			
		||||
                dec_ctx->channel_layout);
 | 
			
		||||
        ret = avfilter_graph_create_filter(&buffersrc_ctx, buffersrc, "in",
 | 
			
		||||
                args, NULL, filter_graph);
 | 
			
		||||
        if (ret < 0) {
 | 
			
		||||
            av_log(NULL, AV_LOG_ERROR, "Cannot create audio buffer source\n");
 | 
			
		||||
            goto end;
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        ret = avfilter_graph_create_filter(&buffersink_ctx, buffersink, "out",
 | 
			
		||||
                NULL, NULL, filter_graph);
 | 
			
		||||
        if (ret < 0) {
 | 
			
		||||
            av_log(NULL, AV_LOG_ERROR, "Cannot create audio buffer sink\n");
 | 
			
		||||
            goto end;
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        ret = av_opt_set_bin(buffersink_ctx, "sample_fmts",
 | 
			
		||||
                (uint8_t*)&enc_ctx->sample_fmt, sizeof(enc_ctx->sample_fmt),
 | 
			
		||||
                AV_OPT_SEARCH_CHILDREN);
 | 
			
		||||
        if (ret < 0) {
 | 
			
		||||
            av_log(NULL, AV_LOG_ERROR, "Cannot set output sample format\n");
 | 
			
		||||
            goto end;
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        ret = av_opt_set_bin(buffersink_ctx, "channel_layouts",
 | 
			
		||||
                (uint8_t*)&enc_ctx->channel_layout,
 | 
			
		||||
                sizeof(enc_ctx->channel_layout), AV_OPT_SEARCH_CHILDREN);
 | 
			
		||||
        if (ret < 0) {
 | 
			
		||||
            av_log(NULL, AV_LOG_ERROR, "Cannot set output channel layout\n");
 | 
			
		||||
            goto end;
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        ret = av_opt_set_bin(buffersink_ctx, "sample_rates",
 | 
			
		||||
                (uint8_t*)&enc_ctx->sample_rate, sizeof(enc_ctx->sample_rate),
 | 
			
		||||
                AV_OPT_SEARCH_CHILDREN);
 | 
			
		||||
        if (ret < 0) {
 | 
			
		||||
            av_log(NULL, AV_LOG_ERROR, "Cannot set output sample rate\n");
 | 
			
		||||
            goto end;
 | 
			
		||||
        }
 | 
			
		||||
    } else {
 | 
			
		||||
        ret = AVERROR_UNKNOWN;
 | 
			
		||||
        goto end;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* Endpoints for the filter graph. */
 | 
			
		||||
    outputs->name       = av_strdup("in");
 | 
			
		||||
    outputs->filter_ctx = buffersrc_ctx;
 | 
			
		||||
    outputs->pad_idx    = 0;
 | 
			
		||||
    outputs->next       = NULL;
 | 
			
		||||
 | 
			
		||||
    inputs->name       = av_strdup("out");
 | 
			
		||||
    inputs->filter_ctx = buffersink_ctx;
 | 
			
		||||
    inputs->pad_idx    = 0;
 | 
			
		||||
    inputs->next       = NULL;
 | 
			
		||||
 | 
			
		||||
    if (!outputs->name || !inputs->name) {
 | 
			
		||||
        ret = AVERROR(ENOMEM);
 | 
			
		||||
        goto end;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    if ((ret = avfilter_graph_parse_ptr(filter_graph, filter_spec,
 | 
			
		||||
                    &inputs, &outputs, NULL)) < 0)
 | 
			
		||||
        goto end;
 | 
			
		||||
 | 
			
		||||
    if ((ret = avfilter_graph_config(filter_graph, NULL)) < 0)
 | 
			
		||||
        goto end;
 | 
			
		||||
 | 
			
		||||
    /* Fill FilteringContext */
 | 
			
		||||
    fctx->buffersrc_ctx = buffersrc_ctx;
 | 
			
		||||
    fctx->buffersink_ctx = buffersink_ctx;
 | 
			
		||||
    fctx->filter_graph = filter_graph;
 | 
			
		||||
 | 
			
		||||
end:
 | 
			
		||||
    avfilter_inout_free(&inputs);
 | 
			
		||||
    avfilter_inout_free(&outputs);
 | 
			
		||||
 | 
			
		||||
    return ret;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static int init_filters(void)
 | 
			
		||||
{
 | 
			
		||||
    const char *filter_spec;
 | 
			
		||||
    unsigned int i;
 | 
			
		||||
    int ret;
 | 
			
		||||
    filter_ctx = av_malloc_array(ifmt_ctx->nb_streams, sizeof(*filter_ctx));
 | 
			
		||||
    if (!filter_ctx)
 | 
			
		||||
        return AVERROR(ENOMEM);
 | 
			
		||||
 | 
			
		||||
    for (i = 0; i < ifmt_ctx->nb_streams; i++) {
 | 
			
		||||
        filter_ctx[i].buffersrc_ctx  = NULL;
 | 
			
		||||
        filter_ctx[i].buffersink_ctx = NULL;
 | 
			
		||||
        filter_ctx[i].filter_graph   = NULL;
 | 
			
		||||
        if (!(ifmt_ctx->streams[i]->codec->codec_type == AVMEDIA_TYPE_AUDIO
 | 
			
		||||
                || ifmt_ctx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO))
 | 
			
		||||
            continue;
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
        if (ifmt_ctx->streams[i]->codec->codec_type == AVMEDIA_TYPE_VIDEO)
 | 
			
		||||
            filter_spec = "null"; /* passthrough (dummy) filter for video */
 | 
			
		||||
        else
 | 
			
		||||
            filter_spec = "anull"; /* passthrough (dummy) filter for audio */
 | 
			
		||||
        ret = init_filter(&filter_ctx[i], ifmt_ctx->streams[i]->codec,
 | 
			
		||||
                ofmt_ctx->streams[i]->codec, filter_spec);
 | 
			
		||||
        if (ret)
 | 
			
		||||
            return ret;
 | 
			
		||||
    }
 | 
			
		||||
    return 0;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static int encode_write_frame(AVFrame *filt_frame, unsigned int stream_index, int *got_frame) {
 | 
			
		||||
    int ret;
 | 
			
		||||
    int got_frame_local;
 | 
			
		||||
    AVPacket enc_pkt;
 | 
			
		||||
    int (*enc_func)(AVCodecContext *, AVPacket *, const AVFrame *, int *) =
 | 
			
		||||
        (ifmt_ctx->streams[stream_index]->codec->codec_type ==
 | 
			
		||||
         AVMEDIA_TYPE_VIDEO) ? avcodec_encode_video2 : avcodec_encode_audio2;
 | 
			
		||||
 | 
			
		||||
    if (!got_frame)
 | 
			
		||||
        got_frame = &got_frame_local;
 | 
			
		||||
 | 
			
		||||
    av_log(NULL, AV_LOG_INFO, "Encoding frame\n");
 | 
			
		||||
    /* encode filtered frame */
 | 
			
		||||
    enc_pkt.data = NULL;
 | 
			
		||||
    enc_pkt.size = 0;
 | 
			
		||||
    av_init_packet(&enc_pkt);
 | 
			
		||||
    ret = enc_func(ofmt_ctx->streams[stream_index]->codec, &enc_pkt,
 | 
			
		||||
            filt_frame, got_frame);
 | 
			
		||||
    av_frame_free(&filt_frame);
 | 
			
		||||
    if (ret < 0)
 | 
			
		||||
        return ret;
 | 
			
		||||
    if (!(*got_frame))
 | 
			
		||||
        return 0;
 | 
			
		||||
 | 
			
		||||
    /* prepare packet for muxing */
 | 
			
		||||
    enc_pkt.stream_index = stream_index;
 | 
			
		||||
    av_packet_rescale_ts(&enc_pkt,
 | 
			
		||||
                         ofmt_ctx->streams[stream_index]->codec->time_base,
 | 
			
		||||
                         ofmt_ctx->streams[stream_index]->time_base);
 | 
			
		||||
 | 
			
		||||
    av_log(NULL, AV_LOG_DEBUG, "Muxing frame\n");
 | 
			
		||||
    /* mux encoded frame */
 | 
			
		||||
    ret = av_interleaved_write_frame(ofmt_ctx, &enc_pkt);
 | 
			
		||||
    return ret;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static int filter_encode_write_frame(AVFrame *frame, unsigned int stream_index)
 | 
			
		||||
{
 | 
			
		||||
    int ret;
 | 
			
		||||
    AVFrame *filt_frame;
 | 
			
		||||
 | 
			
		||||
    av_log(NULL, AV_LOG_INFO, "Pushing decoded frame to filters\n");
 | 
			
		||||
    /* push the decoded frame into the filtergraph */
 | 
			
		||||
    ret = av_buffersrc_add_frame_flags(filter_ctx[stream_index].buffersrc_ctx,
 | 
			
		||||
            frame, 0);
 | 
			
		||||
    if (ret < 0) {
 | 
			
		||||
        av_log(NULL, AV_LOG_ERROR, "Error while feeding the filtergraph\n");
 | 
			
		||||
        return ret;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* pull filtered frames from the filtergraph */
 | 
			
		||||
    while (1) {
 | 
			
		||||
        filt_frame = av_frame_alloc();
 | 
			
		||||
        if (!filt_frame) {
 | 
			
		||||
            ret = AVERROR(ENOMEM);
 | 
			
		||||
            break;
 | 
			
		||||
        }
 | 
			
		||||
        av_log(NULL, AV_LOG_INFO, "Pulling filtered frame from filters\n");
 | 
			
		||||
        ret = av_buffersink_get_frame(filter_ctx[stream_index].buffersink_ctx,
 | 
			
		||||
                filt_frame);
 | 
			
		||||
        if (ret < 0) {
 | 
			
		||||
            /* if no more frames for output - returns AVERROR(EAGAIN)
 | 
			
		||||
             * if flushed and no more frames for output - returns AVERROR_EOF
 | 
			
		||||
             * rewrite retcode to 0 to show it as normal procedure completion
 | 
			
		||||
             */
 | 
			
		||||
            if (ret == AVERROR(EAGAIN) || ret == AVERROR_EOF)
 | 
			
		||||
                ret = 0;
 | 
			
		||||
            av_frame_free(&filt_frame);
 | 
			
		||||
            break;
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        filt_frame->pict_type = AV_PICTURE_TYPE_NONE;
 | 
			
		||||
        ret = encode_write_frame(filt_frame, stream_index, NULL);
 | 
			
		||||
        if (ret < 0)
 | 
			
		||||
            break;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    return ret;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static int flush_encoder(unsigned int stream_index)
 | 
			
		||||
{
 | 
			
		||||
    int ret;
 | 
			
		||||
    int got_frame;
 | 
			
		||||
 | 
			
		||||
    if (!(ofmt_ctx->streams[stream_index]->codec->codec->capabilities &
 | 
			
		||||
                AV_CODEC_CAP_DELAY))
 | 
			
		||||
        return 0;
 | 
			
		||||
 | 
			
		||||
    while (1) {
 | 
			
		||||
        av_log(NULL, AV_LOG_INFO, "Flushing stream #%u encoder\n", stream_index);
 | 
			
		||||
        ret = encode_write_frame(NULL, stream_index, &got_frame);
 | 
			
		||||
        if (ret < 0)
 | 
			
		||||
            break;
 | 
			
		||||
        if (!got_frame)
 | 
			
		||||
            return 0;
 | 
			
		||||
    }
 | 
			
		||||
    return ret;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
int main(int argc, char **argv)
 | 
			
		||||
{
 | 
			
		||||
    int ret;
 | 
			
		||||
    AVPacket packet = { .data = NULL, .size = 0 };
 | 
			
		||||
    AVFrame *frame = NULL;
 | 
			
		||||
    enum AVMediaType type;
 | 
			
		||||
    unsigned int stream_index;
 | 
			
		||||
    unsigned int i;
 | 
			
		||||
    int got_frame;
 | 
			
		||||
    int (*dec_func)(AVCodecContext *, AVFrame *, int *, const AVPacket *);
 | 
			
		||||
 | 
			
		||||
    if (argc != 3) {
 | 
			
		||||
        av_log(NULL, AV_LOG_ERROR, "Usage: %s <input file> <output file>\n", argv[0]);
 | 
			
		||||
        return 1;
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    av_register_all();
 | 
			
		||||
    avfilter_register_all();
 | 
			
		||||
 | 
			
		||||
    if ((ret = open_input_file(argv[1])) < 0)
 | 
			
		||||
        goto end;
 | 
			
		||||
    if ((ret = open_output_file(argv[2])) < 0)
 | 
			
		||||
        goto end;
 | 
			
		||||
    if ((ret = init_filters()) < 0)
 | 
			
		||||
        goto end;
 | 
			
		||||
 | 
			
		||||
    /* read all packets */
 | 
			
		||||
    while (1) {
 | 
			
		||||
        if ((ret = av_read_frame(ifmt_ctx, &packet)) < 0)
 | 
			
		||||
            break;
 | 
			
		||||
        stream_index = packet.stream_index;
 | 
			
		||||
        type = ifmt_ctx->streams[packet.stream_index]->codec->codec_type;
 | 
			
		||||
        av_log(NULL, AV_LOG_DEBUG, "Demuxer gave frame of stream_index %u\n",
 | 
			
		||||
                stream_index);
 | 
			
		||||
 | 
			
		||||
        if (filter_ctx[stream_index].filter_graph) {
 | 
			
		||||
            av_log(NULL, AV_LOG_DEBUG, "Going to reencode&filter the frame\n");
 | 
			
		||||
            frame = av_frame_alloc();
 | 
			
		||||
            if (!frame) {
 | 
			
		||||
                ret = AVERROR(ENOMEM);
 | 
			
		||||
                break;
 | 
			
		||||
            }
 | 
			
		||||
            av_packet_rescale_ts(&packet,
 | 
			
		||||
                                 ifmt_ctx->streams[stream_index]->time_base,
 | 
			
		||||
                                 ifmt_ctx->streams[stream_index]->codec->time_base);
 | 
			
		||||
            dec_func = (type == AVMEDIA_TYPE_VIDEO) ? avcodec_decode_video2 :
 | 
			
		||||
                avcodec_decode_audio4;
 | 
			
		||||
            ret = dec_func(ifmt_ctx->streams[stream_index]->codec, frame,
 | 
			
		||||
                    &got_frame, &packet);
 | 
			
		||||
            if (ret < 0) {
 | 
			
		||||
                av_frame_free(&frame);
 | 
			
		||||
                av_log(NULL, AV_LOG_ERROR, "Decoding failed\n");
 | 
			
		||||
                break;
 | 
			
		||||
            }
 | 
			
		||||
 | 
			
		||||
            if (got_frame) {
 | 
			
		||||
                frame->pts = av_frame_get_best_effort_timestamp(frame);
 | 
			
		||||
                ret = filter_encode_write_frame(frame, stream_index);
 | 
			
		||||
                av_frame_free(&frame);
 | 
			
		||||
                if (ret < 0)
 | 
			
		||||
                    goto end;
 | 
			
		||||
            } else {
 | 
			
		||||
                av_frame_free(&frame);
 | 
			
		||||
            }
 | 
			
		||||
        } else {
 | 
			
		||||
            /* remux this frame without reencoding */
 | 
			
		||||
            av_packet_rescale_ts(&packet,
 | 
			
		||||
                                 ifmt_ctx->streams[stream_index]->time_base,
 | 
			
		||||
                                 ofmt_ctx->streams[stream_index]->time_base);
 | 
			
		||||
 | 
			
		||||
            ret = av_interleaved_write_frame(ofmt_ctx, &packet);
 | 
			
		||||
            if (ret < 0)
 | 
			
		||||
                goto end;
 | 
			
		||||
        }
 | 
			
		||||
        av_free_packet(&packet);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    /* flush filters and encoders */
 | 
			
		||||
    for (i = 0; i < ifmt_ctx->nb_streams; i++) {
 | 
			
		||||
        /* flush filter */
 | 
			
		||||
        if (!filter_ctx[i].filter_graph)
 | 
			
		||||
            continue;
 | 
			
		||||
        ret = filter_encode_write_frame(NULL, i);
 | 
			
		||||
        if (ret < 0) {
 | 
			
		||||
            av_log(NULL, AV_LOG_ERROR, "Flushing filter failed\n");
 | 
			
		||||
            goto end;
 | 
			
		||||
        }
 | 
			
		||||
 | 
			
		||||
        /* flush encoder */
 | 
			
		||||
        ret = flush_encoder(i);
 | 
			
		||||
        if (ret < 0) {
 | 
			
		||||
            av_log(NULL, AV_LOG_ERROR, "Flushing encoder failed\n");
 | 
			
		||||
            goto end;
 | 
			
		||||
        }
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
    av_write_trailer(ofmt_ctx);
 | 
			
		||||
end:
 | 
			
		||||
    av_free_packet(&packet);
 | 
			
		||||
    av_frame_free(&frame);
 | 
			
		||||
    for (i = 0; i < ifmt_ctx->nb_streams; i++) {
 | 
			
		||||
        avcodec_close(ifmt_ctx->streams[i]->codec);
 | 
			
		||||
        if (ofmt_ctx && ofmt_ctx->nb_streams > i && ofmt_ctx->streams[i] && ofmt_ctx->streams[i]->codec)
 | 
			
		||||
            avcodec_close(ofmt_ctx->streams[i]->codec);
 | 
			
		||||
        if (filter_ctx && filter_ctx[i].filter_graph)
 | 
			
		||||
            avfilter_graph_free(&filter_ctx[i].filter_graph);
 | 
			
		||||
    }
 | 
			
		||||
    av_free(filter_ctx);
 | 
			
		||||
    avformat_close_input(&ifmt_ctx);
 | 
			
		||||
    if (ofmt_ctx && !(ofmt_ctx->oformat->flags & AVFMT_NOFILE))
 | 
			
		||||
        avio_closep(&ofmt_ctx->pb);
 | 
			
		||||
    avformat_free_context(ofmt_ctx);
 | 
			
		||||
 | 
			
		||||
    if (ret < 0)
 | 
			
		||||
        av_log(NULL, AV_LOG_ERROR, "Error occurred: %s\n", av_err2str(ret));
 | 
			
		||||
 | 
			
		||||
    return ret ? 1 : 0;
 | 
			
		||||
}
 | 
			
		||||
							
								
								
									
										137
									
								
								doc/faq.texi
									
									
									
									
									
								
							
							
						
						
									
										137
									
								
								doc/faq.texi
									
									
									
									
									
								
							@@ -1,5 +1,4 @@
 | 
			
		||||
\input texinfo @c -*- texinfo -*-
 | 
			
		||||
@documentencoding UTF-8
 | 
			
		||||
 | 
			
		||||
@settitle FFmpeg FAQ
 | 
			
		||||
@titlepage
 | 
			
		||||
@@ -91,56 +90,6 @@ To build FFmpeg, you need to install the development package. It is usually
 | 
			
		||||
called @file{libfoo-dev} or @file{libfoo-devel}. You can remove it after the
 | 
			
		||||
build is finished, but be sure to keep the main package.
 | 
			
		||||
 | 
			
		||||
@section How do I make @command{pkg-config} find my libraries?
 | 
			
		||||
 | 
			
		||||
Somewhere along with your libraries, there is a @file{.pc} file (or several)
 | 
			
		||||
in a @file{pkgconfig} directory. You need to set environment variables to
 | 
			
		||||
point @command{pkg-config} to these files.
 | 
			
		||||
 | 
			
		||||
If you need to @emph{add} directories to @command{pkg-config}'s search list
 | 
			
		||||
(typical use case: library installed separately), add it to
 | 
			
		||||
@code{$PKG_CONFIG_PATH}:
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
export PKG_CONFIG_PATH=/opt/x264/lib/pkgconfig:/opt/opus/lib/pkgconfig
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
If you need to @emph{replace} @command{pkg-config}'s search list
 | 
			
		||||
(typical use case: cross-compiling), set it in
 | 
			
		||||
@code{$PKG_CONFIG_LIBDIR}:
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
export PKG_CONFIG_LIBDIR=/home/me/cross/usr/lib/pkgconfig:/home/me/cross/usr/local/lib/pkgconfig
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
If you need to know the library's internal dependencies (typical use: static
 | 
			
		||||
linking), add the @code{--static} option to @command{pkg-config}:
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
./configure --pkg-config-flags=--static
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@section How do I use @command{pkg-config} when cross-compiling?
 | 
			
		||||
 | 
			
		||||
The best way is to install @command{pkg-config} in your cross-compilation
 | 
			
		||||
environment. It will automatically use the cross-compilation libraries.
 | 
			
		||||
 | 
			
		||||
You can also use @command{pkg-config} from the host environment by
 | 
			
		||||
specifying explicitly @code{--pkg-config=pkg-config} to @command{configure}.
 | 
			
		||||
In that case, you must point @command{pkg-config} to the correct directories
 | 
			
		||||
using the @code{PKG_CONFIG_LIBDIR}, as explained in the previous entry.
 | 
			
		||||
 | 
			
		||||
As an intermediate solution, you can place in your cross-compilation
 | 
			
		||||
environment a script that calls the host @command{pkg-config} with
 | 
			
		||||
@code{PKG_CONFIG_LIBDIR} set. That script can look like that:
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
#!/bin/sh
 | 
			
		||||
PKG_CONFIG_LIBDIR=/path/to/cross/lib/pkgconfig
 | 
			
		||||
export PKG_CONFIG_LIBDIR
 | 
			
		||||
exec /usr/bin/pkg-config "$@@"
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@chapter Usage
 | 
			
		||||
 | 
			
		||||
@section ffmpeg does not work; what is wrong?
 | 
			
		||||
@@ -285,8 +234,8 @@ DirectShowSource("C:\path to your file\yourfile.asf")
 | 
			
		||||
  ffmpeg -i input.avs
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
For ANY other help on AviSynth, please visit the
 | 
			
		||||
@uref{http://www.avisynth.org/, AviSynth homepage}.
 | 
			
		||||
For ANY other help on Avisynth, please visit the
 | 
			
		||||
@uref{http://www.avisynth.org/, Avisynth homepage}.
 | 
			
		||||
 | 
			
		||||
@section How can I join video files?
 | 
			
		||||
 | 
			
		||||
@@ -349,7 +298,7 @@ FFmpeg has a @url{http://ffmpeg.org/ffmpeg-protocols.html#concat,
 | 
			
		||||
@code{concat}} protocol designed specifically for that, with examples in the
 | 
			
		||||
documentation.
 | 
			
		||||
 | 
			
		||||
A few multimedia containers (MPEG-1, MPEG-2 PS, DV) allow one to concatenate
 | 
			
		||||
A few multimedia containers (MPEG-1, MPEG-2 PS, DV) allow to concatenate
 | 
			
		||||
video by merely concatenating the files containing them.
 | 
			
		||||
 | 
			
		||||
Hence you may concatenate your multimedia files by first transcoding them to
 | 
			
		||||
@@ -419,22 +368,42 @@ ffmpeg -f u16le -acodec pcm_s16le -ac 2 -ar 44100 -i all.a \
 | 
			
		||||
rm temp[12].[av] all.[av]
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@section -profile option fails when encoding H.264 video with AAC audio
 | 
			
		||||
 | 
			
		||||
@command{ffmpeg} prints an error like
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
Undefined constant or missing '(' in 'baseline'
 | 
			
		||||
Unable to parse option value "baseline"
 | 
			
		||||
Error setting option profile to value baseline.
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
Short answer: write @option{-profile:v} instead of @option{-profile}.
 | 
			
		||||
 | 
			
		||||
Long answer: this happens because the @option{-profile} option can apply to both
 | 
			
		||||
video and audio.  Specifically the AAC encoder also defines some profiles, none
 | 
			
		||||
of which are named @var{baseline}.
 | 
			
		||||
 | 
			
		||||
The solution is to apply the @option{-profile} option to the video stream only
 | 
			
		||||
by using @url{http://ffmpeg.org/ffmpeg.html#Stream-specifiers-1, Stream specifiers}.
 | 
			
		||||
Appending @code{:v} to it will do exactly that.
 | 
			
		||||
 | 
			
		||||
@section Using @option{-f lavfi}, audio becomes mono for no apparent reason.
 | 
			
		||||
 | 
			
		||||
Use @option{-dumpgraph -} to find out exactly where the channel layout is
 | 
			
		||||
lost.
 | 
			
		||||
 | 
			
		||||
Most likely, it is through @code{auto-inserted aresample}. Try to understand
 | 
			
		||||
Most likely, it is through @code{auto-inserted aconvert}. Try to understand
 | 
			
		||||
why the converting filter was needed at that place.
 | 
			
		||||
 | 
			
		||||
Just before the output is a likely place, as @option{-f lavfi} currently
 | 
			
		||||
only support packed S16.
 | 
			
		||||
 | 
			
		||||
Then insert the correct @code{aformat} explicitly in the filtergraph,
 | 
			
		||||
Then insert the correct @code{aconvert} explicitly in the filter graph,
 | 
			
		||||
specifying the exact format.
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
aformat=sample_fmts=s16:channel_layouts=stereo
 | 
			
		||||
aconvert=s16:stereo:packed
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@section Why does FFmpeg not see the subtitles in my VOB file?
 | 
			
		||||
@@ -443,7 +412,7 @@ VOB and a few other formats do not have a global header that describes
 | 
			
		||||
everything present in the file. Instead, applications are supposed to scan
 | 
			
		||||
the file to see what it contains. Since VOB files are frequently large, only
 | 
			
		||||
the beginning is scanned. If the subtitles happen only later in the file,
 | 
			
		||||
they will not be initially detected.
 | 
			
		||||
they will not be initally detected.
 | 
			
		||||
 | 
			
		||||
Some applications, including the @code{ffmpeg} command-line tool, can only
 | 
			
		||||
work with streams that were detected during the initial scan; streams that
 | 
			
		||||
@@ -467,40 +436,6 @@ point acceptable for your tastes. The most common options to do that are
 | 
			
		||||
@option{-qscale} and @option{-qmax}, but you should peruse the documentation
 | 
			
		||||
of the encoder you chose.
 | 
			
		||||
 | 
			
		||||
@section I have a stretched video, why does scaling does not fix it?
 | 
			
		||||
 | 
			
		||||
A lot of video codecs and formats can store the @emph{aspect ratio} of the
 | 
			
		||||
video: this is the ratio between the width and the height of either the full
 | 
			
		||||
image (DAR, display aspect ratio) or individual pixels (SAR, sample aspect
 | 
			
		||||
ratio). For example, EGA screens at resolution 640×350 had 4:3 DAR and 35:48
 | 
			
		||||
SAR.
 | 
			
		||||
 | 
			
		||||
Most still image processing work with square pixels, i.e. 1:1 SAR, but a lot
 | 
			
		||||
of video standards, especially from the analogic-numeric transition era, use
 | 
			
		||||
non-square pixels.
 | 
			
		||||
 | 
			
		||||
Most processing filters in FFmpeg handle the aspect ratio to avoid
 | 
			
		||||
stretching the image: cropping adjusts the DAR to keep the SAR constant,
 | 
			
		||||
scaling adjusts the SAR to keep the DAR constant.
 | 
			
		||||
 | 
			
		||||
If you want to stretch, or “unstretch”, the image, you need to override the
 | 
			
		||||
information with the
 | 
			
		||||
@url{http://ffmpeg.org/ffmpeg-filters.html#setdar_002c-setsar, @code{setdar or setsar filters}}.
 | 
			
		||||
 | 
			
		||||
Do not forget to examine carefully the original video to check whether the
 | 
			
		||||
stretching comes from the image or from the aspect ratio information.
 | 
			
		||||
 | 
			
		||||
For example, to fix a badly encoded EGA capture, use the following commands,
 | 
			
		||||
either the first one to upscale to square pixels or the second one to set
 | 
			
		||||
the correct aspect ratio or the third one to avoid transcoding (may not work
 | 
			
		||||
depending on the format / codec / player / phase of the moon):
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
ffmpeg -i ega_screen.nut -vf scale=640:480,setsar=1 ega_screen_scaled.nut
 | 
			
		||||
ffmpeg -i ega_screen.nut -vf setdar=4/3 ega_screen_anamorphic.nut
 | 
			
		||||
ffmpeg -i ega_screen.nut -aspect 4/3 -c copy ega_screen_overridden.nut
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@chapter Development
 | 
			
		||||
 | 
			
		||||
@section Are there examples illustrating how to use the FFmpeg libraries, particularly libavcodec and libavformat?
 | 
			
		||||
@@ -540,10 +475,9 @@ read @uref{http://www.tux.org/lkml/#s15, "Programming Religion"}.
 | 
			
		||||
 | 
			
		||||
@section Why are the ffmpeg programs devoid of debugging symbols?
 | 
			
		||||
 | 
			
		||||
The build process creates @command{ffmpeg_g}, @command{ffplay_g}, etc. which
 | 
			
		||||
contain full debug information. Those binaries are stripped to create
 | 
			
		||||
@command{ffmpeg}, @command{ffplay}, etc. If you need the debug information, use
 | 
			
		||||
the *_g versions.
 | 
			
		||||
The build process creates ffmpeg_g, ffplay_g, etc. which contain full debug
 | 
			
		||||
information. Those binaries are stripped to create ffmpeg, ffplay, etc. If
 | 
			
		||||
you need the debug information, use the *_g versions.
 | 
			
		||||
 | 
			
		||||
@section I do not like the LGPL, can I contribute code under the GPL instead?
 | 
			
		||||
 | 
			
		||||
@@ -587,6 +521,10 @@ to use them you have to append -D__STDC_CONSTANT_MACROS to your CXXFLAGS
 | 
			
		||||
You have to create a custom AVIOContext using @code{avio_alloc_context},
 | 
			
		||||
see @file{libavformat/aviobuf.c} in FFmpeg and @file{libmpdemux/demux_lavf.c} in MPlayer or MPlayer2 sources.
 | 
			
		||||
 | 
			
		||||
@section Where can I find libav* headers for Pascal/Delphi?
 | 
			
		||||
 | 
			
		||||
see @url{http://www.iversenit.dk/dev/ffmpeg-headers/}
 | 
			
		||||
 | 
			
		||||
@section Where is the documentation about ffv1, msmpeg4, asv1, 4xm?
 | 
			
		||||
 | 
			
		||||
see @url{http://www.ffmpeg.org/~michael/}
 | 
			
		||||
@@ -599,12 +537,11 @@ In this specific case please look at RFC 4629 to see how it should be done.
 | 
			
		||||
 | 
			
		||||
@section AVStream.r_frame_rate is wrong, it is much larger than the frame rate.
 | 
			
		||||
 | 
			
		||||
@code{r_frame_rate} is NOT the average frame rate, it is the smallest frame rate
 | 
			
		||||
r_frame_rate is NOT the average frame rate, it is the smallest frame rate
 | 
			
		||||
that can accurately represent all timestamps. So no, it is not
 | 
			
		||||
wrong if it is larger than the average!
 | 
			
		||||
For example, if you have mixed 25 and 30 fps content, then @code{r_frame_rate}
 | 
			
		||||
will be 150 (it is the least common multiple).
 | 
			
		||||
If you are looking for the average frame rate, see @code{AVStream.avg_frame_rate}.
 | 
			
		||||
For example, if you have mixed 25 and 30 fps content, then r_frame_rate
 | 
			
		||||
will be 150.
 | 
			
		||||
 | 
			
		||||
@section Why is @code{make fate} not running all tests?
 | 
			
		||||
 | 
			
		||||
 
 | 
			
		||||
@@ -1,5 +1,4 @@
 | 
			
		||||
\input texinfo @c -*- texinfo -*-
 | 
			
		||||
@documentencoding UTF-8
 | 
			
		||||
 | 
			
		||||
@settitle FFmpeg Automated Testing Environment
 | 
			
		||||
@titlepage
 | 
			
		||||
@@ -28,7 +27,7 @@ by visiting this website:
 | 
			
		||||
 | 
			
		||||
  This is especially recommended for all people contributing source
 | 
			
		||||
code to FFmpeg, as it can be seen if some test on some platform broke
 | 
			
		||||
with their recent contribution. This usually happens on the platforms
 | 
			
		||||
with there recent contribution. This usually happens on the platforms
 | 
			
		||||
the developers could not test on.
 | 
			
		||||
 | 
			
		||||
  The second part of this document describes how you can run FATE to
 | 
			
		||||
@@ -54,8 +53,8 @@ make fate       SAMPLES=fate-suite/
 | 
			
		||||
  The above commands set the samples location by passing a makefile
 | 
			
		||||
variable via command line. It is also possible to set the samples
 | 
			
		||||
location at source configuration time by invoking configure with
 | 
			
		||||
@option{--samples=<path to the samples directory>}. Afterwards you can
 | 
			
		||||
invoke the makefile targets without setting the @var{SAMPLES} makefile
 | 
			
		||||
`--samples=<path to the samples directory>'. Afterwards you can
 | 
			
		||||
invoke the makefile targets without setting the SAMPLES makefile
 | 
			
		||||
variable. This is illustrated by the following commands:
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
@@ -102,14 +101,14 @@ The mentioned configuration template is also available here:
 | 
			
		||||
@end ifhtml
 | 
			
		||||
 | 
			
		||||
  Create a configuration that suits your needs, based on the configuration
 | 
			
		||||
template. The @env{slot} configuration variable can be any string that is not
 | 
			
		||||
template. The `slot' configuration variable can be any string that is not
 | 
			
		||||
yet used, but it is suggested that you name it adhering to the following
 | 
			
		||||
pattern @samp{@var{arch}-@var{os}-@var{compiler}-@var{compiler version}}. The
 | 
			
		||||
configuration file itself will be sourced in a shell script, therefore all
 | 
			
		||||
shell features may be used. This enables you to setup the environment as you
 | 
			
		||||
need it for your build.
 | 
			
		||||
pattern <arch>-<os>-<compiler>-<compiler version>. The configuration file
 | 
			
		||||
itself will be sourced in a shell script, therefore all shell features may
 | 
			
		||||
be used. This enables you to setup the environment as you need it for your
 | 
			
		||||
build.
 | 
			
		||||
 | 
			
		||||
For your first test runs the @env{fate_recv} variable should be empty or
 | 
			
		||||
  For your first test runs the `fate_recv' variable should be empty or
 | 
			
		||||
commented out. This will run everything as normal except that it will omit
 | 
			
		||||
the submission of the results to the server. The following files should be
 | 
			
		||||
present in $workdir as specified in the configuration file:
 | 
			
		||||
@@ -132,12 +131,7 @@ of the server and to accept its host key. This can usually be achieved by
 | 
			
		||||
running your SSH client manually and killing it after you accepted the key.
 | 
			
		||||
The FATE server's fingerprint is:
 | 
			
		||||
 | 
			
		||||
@table @samp
 | 
			
		||||
@item RSA
 | 
			
		||||
   d3:f1:83:97:a4:75:2b:a6:fb:d6:e8:aa:81:93:97:51
 | 
			
		||||
@item ECDSA
 | 
			
		||||
   76:9f:68:32:04:1e:d5:d4:ec:47:3f:dc:fc:18:17:86
 | 
			
		||||
@end table
 | 
			
		||||
  b1:31:c8:79:3f:04:1d:f8:f2:23:26:5a:fd:55:fa:92
 | 
			
		||||
 | 
			
		||||
  If you have problems connecting to the FATE server, it may help to try out
 | 
			
		||||
the @command{ssh} command with one or more @option{-v} options. You should
 | 
			
		||||
@@ -165,7 +159,7 @@ Run the FATE test suite (requires the fate-suite dataset).
 | 
			
		||||
 | 
			
		||||
@section Makefile variables
 | 
			
		||||
 | 
			
		||||
@table @env
 | 
			
		||||
@table @option
 | 
			
		||||
@item V
 | 
			
		||||
    Verbosity level, can be set to 0, 1 or 2.
 | 
			
		||||
    @itemize
 | 
			
		||||
@@ -181,22 +175,16 @@ meaning only while running the regression tests.
 | 
			
		||||
@item THREADS
 | 
			
		||||
    Specify how many threads to use while running regression tests, it is
 | 
			
		||||
    quite useful to detect thread-related regressions.
 | 
			
		||||
 | 
			
		||||
@item THREAD_TYPE
 | 
			
		||||
Specify which threading strategy test, either @samp{slice} or @samp{frame},
 | 
			
		||||
by default @samp{slice+frame}
 | 
			
		||||
 | 
			
		||||
    Specify which threading strategy test, either @var{slice} or @var{frame},
 | 
			
		||||
    by default @var{slice+frame}
 | 
			
		||||
@item CPUFLAGS
 | 
			
		||||
    Specify CPU flags.
 | 
			
		||||
 | 
			
		||||
@item TARGET_EXEC
 | 
			
		||||
    Specify or override the wrapper used to run the tests.
 | 
			
		||||
The @env{TARGET_EXEC} option provides a way to run FATE wrapped in
 | 
			
		||||
    The @var{TARGET_EXEC} option provides a way to run FATE wrapped in
 | 
			
		||||
    @command{valgrind}, @command{qemu-user} or @command{wine} or on remote targets
 | 
			
		||||
    through @command{ssh}.
 | 
			
		||||
 | 
			
		||||
@item GEN
 | 
			
		||||
Set to @samp{1} to generate the missing or mismatched references.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@section Examples
 | 
			
		||||
 
 | 
			
		||||
@@ -1,24 +1,19 @@
 | 
			
		||||
slot=                                    # some unique identifier
 | 
			
		||||
repo=git://source.ffmpeg.org/ffmpeg.git  # the source repository
 | 
			
		||||
#branch=release/2.6                       # the branch to test
 | 
			
		||||
samples=                                 # path to samples directory
 | 
			
		||||
workdir=                                 # directory in which to do all the work
 | 
			
		||||
#fate_recv="ssh -T fate@fate.ffmpeg.org" # command to submit report
 | 
			
		||||
comment=                                 # optional description
 | 
			
		||||
build_only=     # set to "yes" for a compile-only instance that skips tests
 | 
			
		||||
 | 
			
		||||
# the following are optional and map to configure options
 | 
			
		||||
arch=
 | 
			
		||||
cpu=
 | 
			
		||||
cross_prefix=
 | 
			
		||||
as=
 | 
			
		||||
cc=
 | 
			
		||||
ld=
 | 
			
		||||
target_os=
 | 
			
		||||
sysroot=
 | 
			
		||||
target_exec=
 | 
			
		||||
target_path=
 | 
			
		||||
target_samples=
 | 
			
		||||
extra_cflags=
 | 
			
		||||
extra_ldflags=
 | 
			
		||||
extra_libs=
 | 
			
		||||
 
 | 
			
		||||
@@ -1,5 +1,4 @@
 | 
			
		||||
\input texinfo @c -*- texinfo -*-
 | 
			
		||||
@documentencoding UTF-8
 | 
			
		||||
 | 
			
		||||
@settitle FFmpeg Bitstream Filters Documentation
 | 
			
		||||
@titlepage
 | 
			
		||||
 
 | 
			
		||||
										
											
												File diff suppressed because it is too large
												Load Diff
											
										
									
								
							@@ -1,5 +1,4 @@
 | 
			
		||||
\input texinfo @c -*- texinfo -*-
 | 
			
		||||
@documentencoding UTF-8
 | 
			
		||||
 | 
			
		||||
@settitle FFmpeg Devices Documentation
 | 
			
		||||
@titlepage
 | 
			
		||||
@@ -18,7 +17,27 @@ libavdevice library.
 | 
			
		||||
 | 
			
		||||
@c man end DESCRIPTION
 | 
			
		||||
 | 
			
		||||
@include devices.texi
 | 
			
		||||
@chapter Device Options
 | 
			
		||||
@c man begin DEVICE OPTIONS
 | 
			
		||||
 | 
			
		||||
The libavdevice library provides the same interface as
 | 
			
		||||
libavformat. Namely, an input device is considered like a demuxer, and
 | 
			
		||||
an output device like a muxer, and the interface and generic device
 | 
			
		||||
options are the same provided by libavformat (see the ffmpeg-formats
 | 
			
		||||
manual).
 | 
			
		||||
 | 
			
		||||
In addition each input or output device may support so-called private
 | 
			
		||||
options, which are specific for that component.
 | 
			
		||||
 | 
			
		||||
Options may be set by specifying -@var{option} @var{value} in the
 | 
			
		||||
FFmpeg tools, or by setting the value explicitly in the device
 | 
			
		||||
@code{AVFormatContext} options or using the @file{libavutil/opt.h} API
 | 
			
		||||
for programmatic use.
 | 
			
		||||
 | 
			
		||||
@c man end DEVICE OPTIONS
 | 
			
		||||
 | 
			
		||||
@include indevs.texi
 | 
			
		||||
@include outdevs.texi
 | 
			
		||||
 | 
			
		||||
@chapter See Also
 | 
			
		||||
 | 
			
		||||
 
 | 
			
		||||
@@ -1,5 +1,4 @@
 | 
			
		||||
\input texinfo @c -*- texinfo -*-
 | 
			
		||||
@documentencoding UTF-8
 | 
			
		||||
 | 
			
		||||
@settitle FFmpeg Filters Documentation
 | 
			
		||||
@titlepage
 | 
			
		||||
 
 | 
			
		||||
@@ -1,5 +1,4 @@
 | 
			
		||||
\input texinfo @c -*- texinfo -*-
 | 
			
		||||
@documentencoding UTF-8
 | 
			
		||||
 | 
			
		||||
@settitle FFmpeg Formats Documentation
 | 
			
		||||
@titlepage
 | 
			
		||||
@@ -18,7 +17,138 @@ provided by the libavformat library.
 | 
			
		||||
 | 
			
		||||
@c man end DESCRIPTION
 | 
			
		||||
 | 
			
		||||
@include formats.texi
 | 
			
		||||
@chapter Format Options
 | 
			
		||||
@c man begin FORMAT OPTIONS
 | 
			
		||||
 | 
			
		||||
The libavformat library provides some generic global options, which
 | 
			
		||||
can be set on all the muxers and demuxers. In addition each muxer or
 | 
			
		||||
demuxer may support so-called private options, which are specific for
 | 
			
		||||
that component.
 | 
			
		||||
 | 
			
		||||
Options may be set by specifying -@var{option} @var{value} in the
 | 
			
		||||
FFmpeg tools, or by setting the value explicitly in the
 | 
			
		||||
@code{AVFormatContext} options or using the @file{libavutil/opt.h} API
 | 
			
		||||
for programmatic use.
 | 
			
		||||
 | 
			
		||||
The list of supported options follows:
 | 
			
		||||
 | 
			
		||||
@table @option
 | 
			
		||||
@item avioflags @var{flags} (@emph{input/output})
 | 
			
		||||
Possible values:
 | 
			
		||||
@table @samp
 | 
			
		||||
@item direct
 | 
			
		||||
Reduce buffering.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@item probesize @var{integer} (@emph{input})
 | 
			
		||||
Set probing size in bytes, i.e. the size of the data to analyze to get
 | 
			
		||||
stream information. A higher value will allow to detect more
 | 
			
		||||
information in case it is dispersed into the stream, but will increase
 | 
			
		||||
latency. Must be an integer not lesser than 32. It is 5000000 by default.
 | 
			
		||||
 | 
			
		||||
@item packetsize @var{integer} (@emph{output})
 | 
			
		||||
Set packet size.
 | 
			
		||||
 | 
			
		||||
@item fflags @var{flags} (@emph{input/output})
 | 
			
		||||
Set format flags.
 | 
			
		||||
 | 
			
		||||
Possible values:
 | 
			
		||||
@table @samp
 | 
			
		||||
@item ignidx
 | 
			
		||||
Ignore index.
 | 
			
		||||
@item genpts
 | 
			
		||||
Generate PTS.
 | 
			
		||||
@item nofillin
 | 
			
		||||
Do not fill in missing values that can be exactly calculated.
 | 
			
		||||
@item noparse
 | 
			
		||||
Disable AVParsers, this needs @code{+nofillin} too.
 | 
			
		||||
@item igndts
 | 
			
		||||
Ignore DTS.
 | 
			
		||||
@item discardcorrupt
 | 
			
		||||
Discard corrupted frames.
 | 
			
		||||
@item sortdts
 | 
			
		||||
Try to interleave output packets by DTS.
 | 
			
		||||
@item keepside
 | 
			
		||||
Do not merge side data.
 | 
			
		||||
@item latm
 | 
			
		||||
Enable RTP MP4A-LATM payload.
 | 
			
		||||
@item nobuffer
 | 
			
		||||
Reduce the latency introduced by optional buffering
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@item analyzeduration @var{integer} (@emph{input})
 | 
			
		||||
Specify how many microseconds are analyzed to probe the input. A
 | 
			
		||||
higher value will allow to detect more accurate information, but will
 | 
			
		||||
increase latency. It defaults to 5,000,000 microseconds = 5 seconds.
 | 
			
		||||
 | 
			
		||||
@item cryptokey @var{hexadecimal string} (@emph{input})
 | 
			
		||||
Set decryption key.
 | 
			
		||||
 | 
			
		||||
@item indexmem @var{integer} (@emph{input})
 | 
			
		||||
Set max memory used for timestamp index (per stream).
 | 
			
		||||
 | 
			
		||||
@item rtbufsize @var{integer} (@emph{input})
 | 
			
		||||
Set max memory used for buffering real-time frames.
 | 
			
		||||
 | 
			
		||||
@item fdebug @var{flags} (@emph{input/output})
 | 
			
		||||
Print specific debug info.
 | 
			
		||||
 | 
			
		||||
Possible values:
 | 
			
		||||
@table @samp
 | 
			
		||||
@item ts
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@item max_delay @var{integer} (@emph{input/output})
 | 
			
		||||
Set maximum muxing or demuxing delay in microseconds.
 | 
			
		||||
 | 
			
		||||
@item fpsprobesize @var{integer} (@emph{input})
 | 
			
		||||
Set number of frames used to probe fps.
 | 
			
		||||
 | 
			
		||||
@item audio_preload @var{integer} (@emph{output})
 | 
			
		||||
Set microseconds by which audio packets should be interleaved earlier.
 | 
			
		||||
 | 
			
		||||
@item chunk_duration @var{integer} (@emph{output})
 | 
			
		||||
Set microseconds for each chunk.
 | 
			
		||||
 | 
			
		||||
@item chunk_size @var{integer} (@emph{output})
 | 
			
		||||
Set size in bytes for each chunk.
 | 
			
		||||
 | 
			
		||||
@item err_detect, f_err_detect @var{flags} (@emph{input})
 | 
			
		||||
Set error detection flags. @code{f_err_detect} is deprecated and
 | 
			
		||||
should be used only via the @command{ffmpeg} tool.
 | 
			
		||||
 | 
			
		||||
Possible values:
 | 
			
		||||
@table @samp
 | 
			
		||||
@item crccheck
 | 
			
		||||
Verify embedded CRCs.
 | 
			
		||||
@item bitstream
 | 
			
		||||
Detect bitstream specification deviations.
 | 
			
		||||
@item buffer
 | 
			
		||||
Detect improper bitstream length.
 | 
			
		||||
@item explode
 | 
			
		||||
Abort decoding on minor error detection.
 | 
			
		||||
@item careful
 | 
			
		||||
Consider things that violate the spec and have not been seen in the
 | 
			
		||||
wild as errors.
 | 
			
		||||
@item compliant
 | 
			
		||||
Consider all spec non compliancies as errors.
 | 
			
		||||
@item aggressive
 | 
			
		||||
Consider things that a sane encoder should not do as an error.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@item use_wallclock_as_timestamps @var{integer} (@emph{input})
 | 
			
		||||
Use wallclock as timestamps.
 | 
			
		||||
 | 
			
		||||
@item avoid_negative_ts @var{integer} (@emph{output})
 | 
			
		||||
Shift timestamps to make them positive. 1 enables, 0 disables, default
 | 
			
		||||
of -1 enables when required by target format.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@c man end FORMAT OPTIONS
 | 
			
		||||
 | 
			
		||||
@include demuxers.texi
 | 
			
		||||
@include muxers.texi
 | 
			
		||||
@include metadata.texi
 | 
			
		||||
 | 
			
		||||
@chapter See Also
 | 
			
		||||
 | 
			
		||||
 
 | 
			
		||||
@@ -1,5 +1,4 @@
 | 
			
		||||
\input texinfo @c -*- texinfo -*-
 | 
			
		||||
@documentencoding UTF-8
 | 
			
		||||
 | 
			
		||||
@settitle FFmpeg Protocols Documentation
 | 
			
		||||
@titlepage
 | 
			
		||||
 
 | 
			
		||||
@@ -1,5 +1,4 @@
 | 
			
		||||
\input texinfo @c -*- texinfo -*-
 | 
			
		||||
@documentencoding UTF-8
 | 
			
		||||
 | 
			
		||||
@settitle FFmpeg Resampler Documentation
 | 
			
		||||
@titlepage
 | 
			
		||||
@@ -13,14 +12,235 @@
 | 
			
		||||
@chapter Description
 | 
			
		||||
@c man begin DESCRIPTION
 | 
			
		||||
 | 
			
		||||
The FFmpeg resampler provides a high-level interface to the
 | 
			
		||||
The FFmpeg resampler provides an high-level interface to the
 | 
			
		||||
libswresample library audio resampling utilities. In particular it
 | 
			
		||||
allows one to perform audio resampling, audio channel layout rematrixing,
 | 
			
		||||
allows to perform audio resampling, audio channel layout rematrixing,
 | 
			
		||||
and convert audio format and packing layout.
 | 
			
		||||
 | 
			
		||||
@c man end DESCRIPTION
 | 
			
		||||
 | 
			
		||||
@include resampler.texi
 | 
			
		||||
@chapter Resampler Options
 | 
			
		||||
@c man begin RESAMPLER OPTIONS
 | 
			
		||||
 | 
			
		||||
The audio resampler supports the following named options.
 | 
			
		||||
 | 
			
		||||
Options may be set by specifying -@var{option} @var{value} in the
 | 
			
		||||
FFmpeg tools, @var{option}=@var{value} for the aresample filter,
 | 
			
		||||
by setting the value explicitly in the
 | 
			
		||||
@code{SwrContext} options or using the @file{libavutil/opt.h} API for
 | 
			
		||||
programmatic use.
 | 
			
		||||
 | 
			
		||||
@table @option
 | 
			
		||||
 | 
			
		||||
@item ich, in_channel_count
 | 
			
		||||
Set the number of input channels. Default value is 0. Setting this
 | 
			
		||||
value is not mandatory if the corresponding channel layout
 | 
			
		||||
@option{in_channel_layout} is set.
 | 
			
		||||
 | 
			
		||||
@item och, out_channel_count
 | 
			
		||||
Set the number of output channels. Default value is 0. Setting this
 | 
			
		||||
value is not mandatory if the corresponding channel layout
 | 
			
		||||
@option{out_channel_layout} is set.
 | 
			
		||||
 | 
			
		||||
@item uch, used_channel_count
 | 
			
		||||
Set the number of used input channels. Default value is 0. This option is
 | 
			
		||||
only used for special remapping.
 | 
			
		||||
 | 
			
		||||
@item isr, in_sample_rate
 | 
			
		||||
Set the input sample rate. Default value is 0.
 | 
			
		||||
 | 
			
		||||
@item osr, out_sample_rate
 | 
			
		||||
Set the output sample rate. Default value is 0.
 | 
			
		||||
 | 
			
		||||
@item isf, in_sample_fmt
 | 
			
		||||
Specify the input sample format. It is set by default to @code{none}.
 | 
			
		||||
 | 
			
		||||
@item osf, out_sample_fmt
 | 
			
		||||
Specify the output sample format. It is set by default to @code{none}.
 | 
			
		||||
 | 
			
		||||
@item tsf, internal_sample_fmt
 | 
			
		||||
Set the internal sample format. Default value is @code{none}.
 | 
			
		||||
This will automatically be chosen when it is not explicitly set.
 | 
			
		||||
 | 
			
		||||
@item icl, in_channel_layout
 | 
			
		||||
Set the input channel layout.
 | 
			
		||||
 | 
			
		||||
@item ocl, out_channel_layout
 | 
			
		||||
Set the output channel layout.
 | 
			
		||||
 | 
			
		||||
@item clev, center_mix_level
 | 
			
		||||
Set the center mix level. It is a value expressed in deciBel, and must be
 | 
			
		||||
in the interval [-32,32].
 | 
			
		||||
 | 
			
		||||
@item slev, surround_mix_level
 | 
			
		||||
Set the surround mix level. It is a value expressed in deciBel, and must
 | 
			
		||||
be in the interval [-32,32].
 | 
			
		||||
 | 
			
		||||
@item lfe_mix_level
 | 
			
		||||
Set LFE mix into non LFE level. It is used when there is a LFE input but no
 | 
			
		||||
LFE output. It is a value expressed in deciBel, and must
 | 
			
		||||
be in the interval [-32,32].
 | 
			
		||||
 | 
			
		||||
@item rmvol, rematrix_volume
 | 
			
		||||
Set rematrix volume. Default value is 1.0.
 | 
			
		||||
 | 
			
		||||
@item flags, swr_flags
 | 
			
		||||
Set flags used by the converter. Default value is 0.
 | 
			
		||||
 | 
			
		||||
It supports the following individual flags:
 | 
			
		||||
@table @option
 | 
			
		||||
@item res
 | 
			
		||||
force resampling, this flag forces resampling to be used even when the
 | 
			
		||||
input and output sample rates match.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@item dither_scale
 | 
			
		||||
Set the dither scale. Default value is 1.
 | 
			
		||||
 | 
			
		||||
@item dither_method
 | 
			
		||||
Set dither method. Default value is 0.
 | 
			
		||||
 | 
			
		||||
Supported values:
 | 
			
		||||
@table @samp
 | 
			
		||||
@item rectangular
 | 
			
		||||
select rectangular dither
 | 
			
		||||
@item triangular
 | 
			
		||||
select triangular dither
 | 
			
		||||
@item triangular_hp
 | 
			
		||||
select triangular dither with high pass
 | 
			
		||||
@item lipshitz
 | 
			
		||||
select lipshitz noise shaping dither
 | 
			
		||||
@item shibata
 | 
			
		||||
select shibata noise shaping dither
 | 
			
		||||
@item low_shibata
 | 
			
		||||
select low shibata noise shaping dither
 | 
			
		||||
@item high_shibata
 | 
			
		||||
select high shibata noise shaping dither
 | 
			
		||||
@item f_weighted
 | 
			
		||||
select f-weighted noise shaping dither
 | 
			
		||||
@item modified_e_weighted
 | 
			
		||||
select modified-e-weighted noise shaping dither
 | 
			
		||||
@item improved_e_weighted
 | 
			
		||||
select improved-e-weighted noise shaping dither
 | 
			
		||||
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@item resampler
 | 
			
		||||
Set resampling engine. Default value is swr.
 | 
			
		||||
 | 
			
		||||
Supported values:
 | 
			
		||||
@table @samp
 | 
			
		||||
@item swr
 | 
			
		||||
select the native SW Resampler; filter options precision and cheby are not
 | 
			
		||||
applicable in this case.
 | 
			
		||||
@item soxr
 | 
			
		||||
select the SoX Resampler (where available); compensation, and filter options
 | 
			
		||||
filter_size, phase_shift, filter_type & kaiser_beta, are not applicable in this
 | 
			
		||||
case.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@item filter_size
 | 
			
		||||
For swr only, set resampling filter size, default value is 32.
 | 
			
		||||
 | 
			
		||||
@item phase_shift
 | 
			
		||||
For swr only, set resampling phase shift, default value is 10, and must be in
 | 
			
		||||
the interval [0,30].
 | 
			
		||||
 | 
			
		||||
@item linear_interp
 | 
			
		||||
Use Linear Interpolation if set to 1, default value is 0.
 | 
			
		||||
 | 
			
		||||
@item cutoff
 | 
			
		||||
Set cutoff frequency (swr: 6dB point; soxr: 0dB point) ratio; must be a float
 | 
			
		||||
value between 0 and 1.  Default value is 0.97 with swr, and 0.91 with soxr
 | 
			
		||||
(which, with a sample-rate of 44100, preserves the entire audio band to 20kHz).
 | 
			
		||||
 | 
			
		||||
@item precision
 | 
			
		||||
For soxr only, the precision in bits to which the resampled signal will be
 | 
			
		||||
calculated.  The default value of 20 (which, with suitable dithering, is
 | 
			
		||||
appropriate for a destination bit-depth of 16) gives SoX's 'High Quality'; a
 | 
			
		||||
value of 28 gives SoX's 'Very High Quality'.
 | 
			
		||||
 | 
			
		||||
@item cheby
 | 
			
		||||
For soxr only, selects passband rolloff none (Chebyshev) & higher-precision
 | 
			
		||||
approximation for 'irrational' ratios. Default value is 0.
 | 
			
		||||
 | 
			
		||||
@item async
 | 
			
		||||
For swr only, simple 1 parameter audio sync to timestamps using stretching,
 | 
			
		||||
squeezing, filling and trimming. Setting this to 1 will enable filling and
 | 
			
		||||
trimming, larger values represent the maximum amount in samples that the data
 | 
			
		||||
may be stretched or squeezed for each second.
 | 
			
		||||
Default value is 0, thus no compensation is applied to make the samples match
 | 
			
		||||
the audio timestamps.
 | 
			
		||||
 | 
			
		||||
@item first_pts
 | 
			
		||||
For swr only, assume the first pts should be this value. The time unit is 1 / sample rate.
 | 
			
		||||
This allows for padding/trimming at the start of stream. By default, no
 | 
			
		||||
assumption is made about the first frame's expected pts, so no padding or
 | 
			
		||||
trimming is done. For example, this could be set to 0 to pad the beginning with
 | 
			
		||||
silence if an audio stream starts after the video stream or to trim any samples
 | 
			
		||||
with a negative pts due to encoder delay.
 | 
			
		||||
 | 
			
		||||
@item min_comp
 | 
			
		||||
For swr only, set the minimum difference between timestamps and audio data (in
 | 
			
		||||
seconds) to trigger stretching/squeezing/filling or trimming of the
 | 
			
		||||
data to make it match the timestamps. The default is that
 | 
			
		||||
stretching/squeezing/filling and trimming is disabled
 | 
			
		||||
(@option{min_comp} = @code{FLT_MAX}).
 | 
			
		||||
 | 
			
		||||
@item min_hard_comp
 | 
			
		||||
For swr only, set the minimum difference between timestamps and audio data (in
 | 
			
		||||
seconds) to trigger adding/dropping samples to make it match the
 | 
			
		||||
timestamps.  This option effectively is a threshold to select between
 | 
			
		||||
hard (trim/fill) and soft (squeeze/stretch) compensation. Note that
 | 
			
		||||
all compensation is by default disabled through @option{min_comp}.
 | 
			
		||||
The default is 0.1.
 | 
			
		||||
 | 
			
		||||
@item comp_duration
 | 
			
		||||
For swr only, set duration (in seconds) over which data is stretched/squeezed
 | 
			
		||||
to make it match the timestamps. Must be a non-negative double float value,
 | 
			
		||||
default value is 1.0.
 | 
			
		||||
 | 
			
		||||
@item max_soft_comp
 | 
			
		||||
For swr only, set maximum factor by which data is stretched/squeezed to make it
 | 
			
		||||
match the timestamps. Must be a non-negative double float value, default value
 | 
			
		||||
is 0.
 | 
			
		||||
 | 
			
		||||
@item matrix_encoding
 | 
			
		||||
Select matrixed stereo encoding.
 | 
			
		||||
 | 
			
		||||
It accepts the following values:
 | 
			
		||||
@table @samp
 | 
			
		||||
@item none
 | 
			
		||||
select none
 | 
			
		||||
@item dolby
 | 
			
		||||
select Dolby
 | 
			
		||||
@item dplii
 | 
			
		||||
select Dolby Pro Logic II
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
Default value is @code{none}.
 | 
			
		||||
 | 
			
		||||
@item filter_type
 | 
			
		||||
For swr only, select resampling filter type. This only affects resampling
 | 
			
		||||
operations.
 | 
			
		||||
 | 
			
		||||
It accepts the following values:
 | 
			
		||||
@table @samp
 | 
			
		||||
@item cubic
 | 
			
		||||
select cubic
 | 
			
		||||
@item blackman_nuttall
 | 
			
		||||
select Blackman Nuttall Windowed Sinc
 | 
			
		||||
@item kaiser
 | 
			
		||||
select Kaiser Windowed Sinc
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@item kaiser_beta
 | 
			
		||||
For swr only, set Kaiser Window Beta value. Must be an integer in the
 | 
			
		||||
interval [2,16], default value is 9.
 | 
			
		||||
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@c man end RESAMPLER OPTIONS
 | 
			
		||||
 | 
			
		||||
@chapter See Also
 | 
			
		||||
 | 
			
		||||
 
 | 
			
		||||
@@ -1,5 +1,4 @@
 | 
			
		||||
\input texinfo @c -*- texinfo -*-
 | 
			
		||||
@documentencoding UTF-8
 | 
			
		||||
 | 
			
		||||
@settitle FFmpeg Scaler Documentation
 | 
			
		||||
@titlepage
 | 
			
		||||
@@ -13,13 +12,111 @@
 | 
			
		||||
@chapter Description
 | 
			
		||||
@c man begin DESCRIPTION
 | 
			
		||||
 | 
			
		||||
The FFmpeg rescaler provides a high-level interface to the libswscale
 | 
			
		||||
library image conversion utilities. In particular it allows one to perform
 | 
			
		||||
The FFmpeg rescaler provides an high-level interface to the libswscale
 | 
			
		||||
library image conversion utilities. In particular it allows to perform
 | 
			
		||||
image rescaling and pixel format conversion.
 | 
			
		||||
 | 
			
		||||
@c man end DESCRIPTION
 | 
			
		||||
 | 
			
		||||
@include scaler.texi
 | 
			
		||||
@chapter Scaler Options
 | 
			
		||||
@c man begin SCALER OPTIONS
 | 
			
		||||
 | 
			
		||||
The video scaler supports the following named options.
 | 
			
		||||
 | 
			
		||||
Options may be set by specifying -@var{option} @var{value} in the
 | 
			
		||||
FFmpeg tools. For programmatic use, they can be set explicitly in the
 | 
			
		||||
@code{SwsContext} options or through the @file{libavutil/opt.h} API.
 | 
			
		||||
 | 
			
		||||
@table @option
 | 
			
		||||
 | 
			
		||||
@item sws_flags
 | 
			
		||||
Set the scaler flags. This is also used to set the scaling
 | 
			
		||||
algorithm. Only a single algorithm should be selected.
 | 
			
		||||
 | 
			
		||||
It accepts the following values:
 | 
			
		||||
@table @samp
 | 
			
		||||
@item fast_bilinear
 | 
			
		||||
Select fast bilinear scaling algorithm.
 | 
			
		||||
 | 
			
		||||
@item bilinear
 | 
			
		||||
Select bilinear scaling algorithm.
 | 
			
		||||
 | 
			
		||||
@item bicubic
 | 
			
		||||
Select bicubic scaling algorithm.
 | 
			
		||||
 | 
			
		||||
@item experimental
 | 
			
		||||
Select experimental scaling algorithm.
 | 
			
		||||
 | 
			
		||||
@item neighbor
 | 
			
		||||
Select nearest neighbor rescaling algorithm.
 | 
			
		||||
 | 
			
		||||
@item area
 | 
			
		||||
Select averaging area rescaling algorithm.
 | 
			
		||||
 | 
			
		||||
@item bicubiclin
 | 
			
		||||
Select bicubic scaling algorithm for the luma component, bilinear for
 | 
			
		||||
chroma components.
 | 
			
		||||
 | 
			
		||||
@item gauss
 | 
			
		||||
Select Gaussian rescaling algorithm.
 | 
			
		||||
 | 
			
		||||
@item sinc
 | 
			
		||||
Select sinc rescaling algorithm.
 | 
			
		||||
 | 
			
		||||
@item lanczos
 | 
			
		||||
Select lanczos rescaling algorithm.
 | 
			
		||||
 | 
			
		||||
@item spline
 | 
			
		||||
Select natural bicubic spline rescaling algorithm.
 | 
			
		||||
 | 
			
		||||
@item print_info
 | 
			
		||||
Enable printing/debug logging.
 | 
			
		||||
 | 
			
		||||
@item accurate_rnd
 | 
			
		||||
Enable accurate rounding.
 | 
			
		||||
 | 
			
		||||
@item full_chroma_int
 | 
			
		||||
Enable full chroma interpolation.
 | 
			
		||||
 | 
			
		||||
@item full_chroma_inp
 | 
			
		||||
Select full chroma input.
 | 
			
		||||
 | 
			
		||||
@item bitexact
 | 
			
		||||
Enable bitexact output.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@item srcw
 | 
			
		||||
Set source width.
 | 
			
		||||
 | 
			
		||||
@item srch
 | 
			
		||||
Set source height.
 | 
			
		||||
 | 
			
		||||
@item dstw
 | 
			
		||||
Set destination width.
 | 
			
		||||
 | 
			
		||||
@item dsth
 | 
			
		||||
Set destination height.
 | 
			
		||||
 | 
			
		||||
@item src_format
 | 
			
		||||
Set source pixel format (must be expressed as an integer).
 | 
			
		||||
 | 
			
		||||
@item dst_format
 | 
			
		||||
Set destination pixel format (must be expressed as an integer).
 | 
			
		||||
 | 
			
		||||
@item src_range
 | 
			
		||||
Select source range.
 | 
			
		||||
 | 
			
		||||
@item dst_range
 | 
			
		||||
Select destination range.
 | 
			
		||||
 | 
			
		||||
@item param0, param1
 | 
			
		||||
Set scaling algorithm parameters. The specified values are specific of
 | 
			
		||||
some scaling algorithms and ignored by others. The specified values
 | 
			
		||||
are floating point number values.
 | 
			
		||||
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@c man end SCALER OPTIONS
 | 
			
		||||
 | 
			
		||||
@chapter See Also
 | 
			
		||||
 | 
			
		||||
 
 | 
			
		||||
@@ -1,5 +1,4 @@
 | 
			
		||||
\input texinfo @c -*- texinfo -*-
 | 
			
		||||
@documentencoding UTF-8
 | 
			
		||||
 | 
			
		||||
@settitle FFmpeg Utilities Documentation
 | 
			
		||||
@titlepage
 | 
			
		||||
@@ -18,7 +17,8 @@ by the libavutil library.
 | 
			
		||||
 | 
			
		||||
@c man end DESCRIPTION
 | 
			
		||||
 | 
			
		||||
@include utils.texi
 | 
			
		||||
@include syntax.texi
 | 
			
		||||
@include eval.texi
 | 
			
		||||
 | 
			
		||||
@chapter See Also
 | 
			
		||||
 | 
			
		||||
 
 | 
			
		||||
							
								
								
									
										552
									
								
								doc/ffmpeg.texi
									
									
									
									
									
								
							
							
						
						
									
										552
									
								
								doc/ffmpeg.texi
									
									
									
									
									
								
							@@ -1,5 +1,4 @@
 | 
			
		||||
\input texinfo @c -*- texinfo -*-
 | 
			
		||||
@documentencoding UTF-8
 | 
			
		||||
 | 
			
		||||
@settitle ffmpeg Documentation
 | 
			
		||||
@titlepage
 | 
			
		||||
@@ -17,26 +16,26 @@ ffmpeg [@var{global_options}] @{[@var{input_file_options}] -i @file{input_file}@
 | 
			
		||||
@chapter Description
 | 
			
		||||
@c man begin DESCRIPTION
 | 
			
		||||
 | 
			
		||||
@command{ffmpeg} is a very fast video and audio converter that can also grab from
 | 
			
		||||
ffmpeg is a very fast video and audio converter that can also grab from
 | 
			
		||||
a live audio/video source. It can also convert between arbitrary sample
 | 
			
		||||
rates and resize video on the fly with a high quality polyphase filter.
 | 
			
		||||
 | 
			
		||||
@command{ffmpeg} reads from an arbitrary number of input "files" (which can be regular
 | 
			
		||||
ffmpeg reads from an arbitrary number of input "files" (which can be regular
 | 
			
		||||
files, pipes, network streams, grabbing devices, etc.), specified by the
 | 
			
		||||
@code{-i} option, and writes to an arbitrary number of output "files", which are
 | 
			
		||||
specified by a plain output filename. Anything found on the command line which
 | 
			
		||||
cannot be interpreted as an option is considered to be an output filename.
 | 
			
		||||
 | 
			
		||||
Each input or output file can, in principle, contain any number of streams of
 | 
			
		||||
different types (video/audio/subtitle/attachment/data). The allowed number and/or
 | 
			
		||||
types of streams may be limited by the container format. Selecting which
 | 
			
		||||
streams from which inputs will go into which output is either done automatically
 | 
			
		||||
or with the @code{-map} option (see the Stream selection chapter).
 | 
			
		||||
Each input or output file can in principle contain any number of streams of
 | 
			
		||||
different types (video/audio/subtitle/attachment/data). Allowed number and/or
 | 
			
		||||
types of streams can be limited by the container format. Selecting, which
 | 
			
		||||
streams from which inputs go into output, is done either automatically or with
 | 
			
		||||
the @code{-map} option (see the Stream selection chapter).
 | 
			
		||||
 | 
			
		||||
To refer to input files in options, you must use their indices (0-based). E.g.
 | 
			
		||||
the first input file is @code{0}, the second is @code{1}, etc. Similarly, streams
 | 
			
		||||
the first input file is @code{0}, the second is @code{1} etc. Similarly, streams
 | 
			
		||||
within a file are referred to by their indices. E.g. @code{2:3} refers to the
 | 
			
		||||
fourth stream in the third input file. Also see the Stream specifiers chapter.
 | 
			
		||||
fourth stream in the third input file. See also the Stream specifiers chapter.
 | 
			
		||||
 | 
			
		||||
As a general rule, options are applied to the next specified
 | 
			
		||||
file. Therefore, order is important, and you can have the same
 | 
			
		||||
@@ -80,26 +79,14 @@ The format option may be needed for raw input files.
 | 
			
		||||
The transcoding process in @command{ffmpeg} for each output can be described by
 | 
			
		||||
the following diagram:
 | 
			
		||||
 | 
			
		||||
@verbatim
 | 
			
		||||
 _______              ______________
 | 
			
		||||
|       |            |              |
 | 
			
		||||
| input |  demuxer   | encoded data |   decoder
 | 
			
		||||
| file  | ---------> | packets      | -----+
 | 
			
		||||
|_______|            |______________|      |
 | 
			
		||||
                                           v
 | 
			
		||||
                                       _________
 | 
			
		||||
                                      |         |
 | 
			
		||||
                                      | decoded |
 | 
			
		||||
                                      | frames  |
 | 
			
		||||
                                      |_________|
 | 
			
		||||
 ________             ______________       |
 | 
			
		||||
|        |           |              |      |
 | 
			
		||||
| output | <-------- | encoded data | <----+
 | 
			
		||||
| file   |   muxer   | packets      |   encoder
 | 
			
		||||
|________|           |______________|
 | 
			
		||||
@example
 | 
			
		||||
 _______              ______________               _________              ______________            ________
 | 
			
		||||
|       |            |              |             |         |            |              |          |        |
 | 
			
		||||
| input |  demuxer   | encoded data |   decoder   | decoded |  encoder   | encoded data |  muxer   | output |
 | 
			
		||||
| file  | ---------> | packets      |  ---------> | frames  | ---------> | packets      | -------> | file   |
 | 
			
		||||
|_______|            |______________|             |_________|            |______________|          |________|
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
@end verbatim
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@command{ffmpeg} calls the libavformat library (containing demuxers) to read
 | 
			
		||||
input files and get packets containing encoded data from them. When there are
 | 
			
		||||
@@ -109,14 +96,14 @@ tracking lowest timestamp on any active input stream.
 | 
			
		||||
Encoded packets are then passed to the decoder (unless streamcopy is selected
 | 
			
		||||
for the stream, see further for a description). The decoder produces
 | 
			
		||||
uncompressed frames (raw video/PCM audio/...) which can be processed further by
 | 
			
		||||
filtering (see next section). After filtering, the frames are passed to the
 | 
			
		||||
encoder, which encodes them and outputs encoded packets. Finally those are
 | 
			
		||||
filtering (see next section). After filtering the frames are passed to the
 | 
			
		||||
encoder, which encodes them and outputs encoded packets again. Finally those are
 | 
			
		||||
passed to the muxer, which writes the encoded packets to the output file.
 | 
			
		||||
 | 
			
		||||
@section Filtering
 | 
			
		||||
Before encoding, @command{ffmpeg} can process raw audio and video frames using
 | 
			
		||||
filters from the libavfilter library. Several chained filters form a filter
 | 
			
		||||
graph. @command{ffmpeg} distinguishes between two types of filtergraphs:
 | 
			
		||||
graph.  @command{ffmpeg} distinguishes between two types of filtergraphs -
 | 
			
		||||
simple and complex.
 | 
			
		||||
 | 
			
		||||
@subsection Simple filtergraphs
 | 
			
		||||
@@ -124,31 +111,26 @@ Simple filtergraphs are those that have exactly one input and output, both of
 | 
			
		||||
the same type. In the above diagram they can be represented by simply inserting
 | 
			
		||||
an additional step between decoding and encoding:
 | 
			
		||||
 | 
			
		||||
@verbatim
 | 
			
		||||
 _________                        ______________
 | 
			
		||||
|         |                      |              |
 | 
			
		||||
| decoded |                      | encoded data |
 | 
			
		||||
| frames  |\                   _ | packets      |
 | 
			
		||||
|_________| \                  /||______________|
 | 
			
		||||
             \   __________   /
 | 
			
		||||
  simple     _\||          | /  encoder
 | 
			
		||||
  filtergraph   | filtered |/
 | 
			
		||||
                | frames   |
 | 
			
		||||
                |__________|
 | 
			
		||||
@example
 | 
			
		||||
 _________                        __________              ______________
 | 
			
		||||
|         |                      |          |            |              |
 | 
			
		||||
| decoded |  simple filtergraph  | filtered |  encoder   | encoded data |
 | 
			
		||||
| frames  | -------------------> | frames   | ---------> | packets      |
 | 
			
		||||
|_________|                      |__________|            |______________|
 | 
			
		||||
 | 
			
		||||
@end verbatim
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
Simple filtergraphs are configured with the per-stream @option{-filter} option
 | 
			
		||||
(with @option{-vf} and @option{-af} aliases for video and audio respectively).
 | 
			
		||||
A simple filtergraph for video can look for example like this:
 | 
			
		||||
 | 
			
		||||
@verbatim
 | 
			
		||||
 _______        _____________        _______        ________
 | 
			
		||||
|       |      |             |      |       |      |        |
 | 
			
		||||
| input | ---> | deinterlace | ---> | scale | ---> | output |
 | 
			
		||||
|_______|      |_____________|      |_______|      |________|
 | 
			
		||||
@example
 | 
			
		||||
 _______        _____________        _______        _____        ________
 | 
			
		||||
|       |      |             |      |       |      |     |      |        |
 | 
			
		||||
| input | ---> | deinterlace | ---> | scale | ---> | fps | ---> | output |
 | 
			
		||||
|_______|      |_____________|      |_______|      |_____|      |________|
 | 
			
		||||
 | 
			
		||||
@end verbatim
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
Note that some filters change frame properties but not frame contents. E.g. the
 | 
			
		||||
@code{fps} filter in the example above changes number of frames, but does not
 | 
			
		||||
@@ -157,11 +139,11 @@ only sets timestamps and otherwise passes the frames unchanged.
 | 
			
		||||
 | 
			
		||||
@subsection Complex filtergraphs
 | 
			
		||||
Complex filtergraphs are those which cannot be described as simply a linear
 | 
			
		||||
processing chain applied to one stream. This is the case, for example, when the graph has
 | 
			
		||||
processing chain applied to one stream. This is the case e.g. when the graph has
 | 
			
		||||
more than one input and/or output, or when output stream type is different from
 | 
			
		||||
input. They can be represented with the following diagram:
 | 
			
		||||
 | 
			
		||||
@verbatim
 | 
			
		||||
@example
 | 
			
		||||
 _________
 | 
			
		||||
|         |
 | 
			
		||||
| input 0 |\                    __________
 | 
			
		||||
@@ -179,14 +161,12 @@ input. They can be represented with the following diagram:
 | 
			
		||||
| input 2 |/
 | 
			
		||||
|_________|
 | 
			
		||||
 | 
			
		||||
@end verbatim
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
Complex filtergraphs are configured with the @option{-filter_complex} option.
 | 
			
		||||
Note that this option is global, since a complex filtergraph, by its nature,
 | 
			
		||||
Note that this option is global, since a complex filtergraph by its nature
 | 
			
		||||
cannot be unambiguously associated with a single stream or file.
 | 
			
		||||
 | 
			
		||||
The @option{-lavfi} option is equivalent to @option{-filter_complex}.
 | 
			
		||||
 | 
			
		||||
A trivial example of a complex filtergraph is the @code{overlay} filter, which
 | 
			
		||||
has two video inputs and one video output, containing one video overlaid on top
 | 
			
		||||
of the other. Its audio counterpart is the @code{amix} filter.
 | 
			
		||||
@@ -196,19 +176,19 @@ Stream copy is a mode selected by supplying the @code{copy} parameter to the
 | 
			
		||||
@option{-codec} option. It makes @command{ffmpeg} omit the decoding and encoding
 | 
			
		||||
step for the specified stream, so it does only demuxing and muxing. It is useful
 | 
			
		||||
for changing the container format or modifying container-level metadata. The
 | 
			
		||||
diagram above will, in this case, simplify to this:
 | 
			
		||||
diagram above will in this case simplify to this:
 | 
			
		||||
 | 
			
		||||
@verbatim
 | 
			
		||||
@example
 | 
			
		||||
 _______              ______________            ________
 | 
			
		||||
|       |            |              |          |        |
 | 
			
		||||
| input |  demuxer   | encoded data |  muxer   | output |
 | 
			
		||||
| file  | ---------> | packets      | -------> | file   |
 | 
			
		||||
|_______|            |______________|          |________|
 | 
			
		||||
 | 
			
		||||
@end verbatim
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
Since there is no decoding or encoding, it is very fast and there is no quality
 | 
			
		||||
loss. However, it might not work in some cases because of many factors. Applying
 | 
			
		||||
loss. However it might not work in some cases because of many factors. Applying
 | 
			
		||||
filters is obviously also impossible, since filters work on uncompressed data.
 | 
			
		||||
 | 
			
		||||
@c man end DETAILED DESCRIPTION
 | 
			
		||||
@@ -216,14 +196,14 @@ filters is obviously also impossible, since filters work on uncompressed data.
 | 
			
		||||
@chapter Stream selection
 | 
			
		||||
@c man begin STREAM SELECTION
 | 
			
		||||
 | 
			
		||||
By default, @command{ffmpeg} includes only one stream of each type (video, audio, subtitle)
 | 
			
		||||
By default ffmpeg includes only one stream of each type (video, audio, subtitle)
 | 
			
		||||
present in the input files and adds them to each output file.  It picks the
 | 
			
		||||
"best" of each based upon the following criteria: for video, it is the stream
 | 
			
		||||
with the highest resolution, for audio, it is the stream with the most channels, for
 | 
			
		||||
subtitles, it is the first subtitle stream. In the case where several streams of
 | 
			
		||||
the same type rate equally, the stream with the lowest index is chosen.
 | 
			
		||||
"best" of each based upon the following criteria; for video it is the stream
 | 
			
		||||
with the highest resolution, for audio the stream with the most channels, for
 | 
			
		||||
subtitle it's the first subtitle stream. In the case where several streams of
 | 
			
		||||
the same type rate equally, the lowest numbered stream is chosen.
 | 
			
		||||
 | 
			
		||||
You can disable some of those defaults by using the @code{-vn/-an/-sn} options. For
 | 
			
		||||
You can disable some of those defaults by using @code{-vn/-an/-sn} options. For
 | 
			
		||||
full manual control, use the @code{-map} option, which disables the defaults just
 | 
			
		||||
described.
 | 
			
		||||
 | 
			
		||||
@@ -232,7 +212,7 @@ described.
 | 
			
		||||
@chapter Options
 | 
			
		||||
@c man begin OPTIONS
 | 
			
		||||
 | 
			
		||||
@include fftools-common-opts.texi
 | 
			
		||||
@include avtools-common-opts.texi
 | 
			
		||||
 | 
			
		||||
@section Main options
 | 
			
		||||
 | 
			
		||||
@@ -240,7 +220,7 @@ described.
 | 
			
		||||
 | 
			
		||||
@item -f @var{fmt} (@emph{input/output})
 | 
			
		||||
Force input or output file format. The format is normally auto detected for input
 | 
			
		||||
files and guessed from the file extension for output files, so this option is not
 | 
			
		||||
files and guessed from file extension for output files, so this option is not
 | 
			
		||||
needed in most cases.
 | 
			
		||||
 | 
			
		||||
@item -i @var{filename} (@emph{input})
 | 
			
		||||
@@ -250,8 +230,7 @@ input file name
 | 
			
		||||
Overwrite output files without asking.
 | 
			
		||||
 | 
			
		||||
@item -n (@emph{global})
 | 
			
		||||
Do not overwrite output files, and exit immediately if a specified
 | 
			
		||||
output file already exists.
 | 
			
		||||
Do not overwrite output files but exit if file exists.
 | 
			
		||||
 | 
			
		||||
@item -c[:@var{stream_specifier}] @var{codec} (@emph{input/output,per-stream})
 | 
			
		||||
@itemx -codec[:@var{stream_specifier}] @var{codec} (@emph{input/output,per-stream})
 | 
			
		||||
@@ -273,22 +252,15 @@ ffmpeg -i INPUT -map 0 -c copy -c:v:1 libx264 -c:a:137 libvorbis OUTPUT
 | 
			
		||||
will copy all the streams except the second video, which will be encoded with
 | 
			
		||||
libx264, and the 138th audio, which will be encoded with libvorbis.
 | 
			
		||||
 | 
			
		||||
@item -t @var{duration} (@emph{input/output})
 | 
			
		||||
When used as an input option (before @code{-i}), limit the @var{duration} of
 | 
			
		||||
data read from the input file.
 | 
			
		||||
 | 
			
		||||
When used as an output option (before an output filename), stop writing the
 | 
			
		||||
output after its duration reaches @var{duration}.
 | 
			
		||||
 | 
			
		||||
@var{duration} must be a time duration specification,
 | 
			
		||||
see @ref{time duration syntax,,the Time duration section in the ffmpeg-utils(1) manual,ffmpeg-utils}.
 | 
			
		||||
@item -t @var{duration} (@emph{output})
 | 
			
		||||
Stop writing the output after its duration reaches @var{duration}.
 | 
			
		||||
@var{duration} may be a number in seconds, or in @code{hh:mm:ss[.xxx]} form.
 | 
			
		||||
 | 
			
		||||
-to and -t are mutually exclusive and -t has priority.
 | 
			
		||||
 | 
			
		||||
@item -to @var{position} (@emph{output})
 | 
			
		||||
Stop writing the output at @var{position}.
 | 
			
		||||
@var{position} must be a time duration specification,
 | 
			
		||||
see @ref{time duration syntax,,the Time duration section in the ffmpeg-utils(1) manual,ffmpeg-utils}.
 | 
			
		||||
@var{position} may be a number in seconds, or in @code{hh:mm:ss[.xxx]} form.
 | 
			
		||||
 | 
			
		||||
-to and -t are mutually exclusive and -t has priority.
 | 
			
		||||
 | 
			
		||||
@@ -297,39 +269,30 @@ Set the file size limit, expressed in bytes.
 | 
			
		||||
 | 
			
		||||
@item -ss @var{position} (@emph{input/output})
 | 
			
		||||
When used as an input option (before @code{-i}), seeks in this input file to
 | 
			
		||||
@var{position}. Note that in most formats it is not possible to seek exactly,
 | 
			
		||||
so @command{ffmpeg} will seek to the closest seek point before @var{position}.
 | 
			
		||||
When transcoding and @option{-accurate_seek} is enabled (the default), this
 | 
			
		||||
extra segment between the seek point and @var{position} will be decoded and
 | 
			
		||||
discarded. When doing stream copy or when @option{-noaccurate_seek} is used, it
 | 
			
		||||
will be preserved.
 | 
			
		||||
@var{position}. When used as an output option (before an output filename),
 | 
			
		||||
decodes but discards input until the timestamps reach @var{position}. This is
 | 
			
		||||
slower, but more accurate.
 | 
			
		||||
 | 
			
		||||
When used as an output option (before an output filename), decodes but discards
 | 
			
		||||
input until the timestamps reach @var{position}.
 | 
			
		||||
 | 
			
		||||
@var{position} must be a time duration specification,
 | 
			
		||||
see @ref{time duration syntax,,the Time duration section in the ffmpeg-utils(1) manual,ffmpeg-utils}.
 | 
			
		||||
 | 
			
		||||
@item -sseof @var{position} (@emph{input/output})
 | 
			
		||||
 | 
			
		||||
Like the @code{-ss} option but relative to the "end of file". That is negative
 | 
			
		||||
values are earlier in the file, 0 is at EOF.
 | 
			
		||||
@var{position} may be either in seconds or in @code{hh:mm:ss[.xxx]} form.
 | 
			
		||||
 | 
			
		||||
@item -itsoffset @var{offset} (@emph{input})
 | 
			
		||||
Set the input time offset.
 | 
			
		||||
Set the input time offset in seconds.
 | 
			
		||||
@code{[-]hh:mm:ss[.xxx]} syntax is also supported.
 | 
			
		||||
The offset is added to the timestamps of the input files.
 | 
			
		||||
Specifying a positive offset means that the corresponding
 | 
			
		||||
streams are delayed by @var{offset} seconds.
 | 
			
		||||
 | 
			
		||||
@var{offset} must be a time duration specification,
 | 
			
		||||
see @ref{time duration syntax,,the Time duration section in the ffmpeg-utils(1) manual,ffmpeg-utils}.
 | 
			
		||||
 | 
			
		||||
The offset is added to the timestamps of the input files. Specifying
 | 
			
		||||
a positive offset means that the corresponding streams are delayed by
 | 
			
		||||
the time duration specified in @var{offset}.
 | 
			
		||||
 | 
			
		||||
@item -timestamp @var{date} (@emph{output})
 | 
			
		||||
@item -timestamp @var{time} (@emph{output})
 | 
			
		||||
Set the recording timestamp in the container.
 | 
			
		||||
 | 
			
		||||
@var{date} must be a date specification,
 | 
			
		||||
see @ref{date syntax,,the Date section in the ffmpeg-utils(1) manual,ffmpeg-utils}.
 | 
			
		||||
The syntax for @var{time} is:
 | 
			
		||||
@example
 | 
			
		||||
now|([(YYYY-MM-DD|YYYYMMDD)[T|t| ]]((HH:MM:SS[.m...])|(HHMMSS[.m...]))[Z|z])
 | 
			
		||||
@end example
 | 
			
		||||
If the value is "now" it takes the current time.
 | 
			
		||||
Time is local time unless 'Z' or 'z' is appended, in which case it is
 | 
			
		||||
interpreted as UTC.
 | 
			
		||||
If the year-month-day part is not specified it takes the current
 | 
			
		||||
year-month-day.
 | 
			
		||||
 | 
			
		||||
@item -metadata[:metadata_specifier] @var{key}=@var{value} (@emph{output,per-metadata})
 | 
			
		||||
Set a metadata key/value pair.
 | 
			
		||||
@@ -348,7 +311,7 @@ ffmpeg -i in.avi -metadata title="my title" out.flv
 | 
			
		||||
 | 
			
		||||
To set the language of the first audio stream:
 | 
			
		||||
@example
 | 
			
		||||
ffmpeg -i INPUT -metadata:s:a:0 language=eng OUTPUT
 | 
			
		||||
ffmpeg -i INPUT -metadata:s:a:1 language=eng OUTPUT
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@item -target @var{type} (@emph{output})
 | 
			
		||||
@@ -369,27 +332,22 @@ ffmpeg -i myfile.avi -target vcd -bf 2 /tmp/vcd.mpg
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@item -dframes @var{number} (@emph{output})
 | 
			
		||||
Set the number of data frames to output. This is an alias for @code{-frames:d}.
 | 
			
		||||
Set the number of data frames to record. This is an alias for @code{-frames:d}.
 | 
			
		||||
 | 
			
		||||
@item -frames[:@var{stream_specifier}] @var{framecount} (@emph{output,per-stream})
 | 
			
		||||
Stop writing to the stream after @var{framecount} frames.
 | 
			
		||||
 | 
			
		||||
@item -q[:@var{stream_specifier}] @var{q} (@emph{output,per-stream})
 | 
			
		||||
@itemx -qscale[:@var{stream_specifier}] @var{q} (@emph{output,per-stream})
 | 
			
		||||
Use fixed quality scale (VBR). The meaning of @var{q}/@var{qscale} is
 | 
			
		||||
Use fixed quality scale (VBR). The meaning of @var{q} is
 | 
			
		||||
codec-dependent.
 | 
			
		||||
If @var{qscale} is used without a @var{stream_specifier} then it applies only
 | 
			
		||||
to the video stream, this is to maintain compatibility with previous behavior
 | 
			
		||||
and as specifying the same codec specific value to 2 different codecs that is
 | 
			
		||||
audio and video generally is not what is intended when no stream_specifier is
 | 
			
		||||
used.
 | 
			
		||||
 | 
			
		||||
@anchor{filter_option}
 | 
			
		||||
@item -filter[:@var{stream_specifier}] @var{filtergraph} (@emph{output,per-stream})
 | 
			
		||||
Create the filtergraph specified by @var{filtergraph} and use it to
 | 
			
		||||
@item -filter[:@var{stream_specifier}] @var{filter_graph} (@emph{output,per-stream})
 | 
			
		||||
Create the filter graph specified by @var{filter_graph} and use it to
 | 
			
		||||
filter the stream.
 | 
			
		||||
 | 
			
		||||
@var{filtergraph} is a description of the filtergraph to apply to
 | 
			
		||||
@var{filter_graph} is a description of the filter graph to apply to
 | 
			
		||||
the stream, and must have a single input and a single output of the
 | 
			
		||||
same type of the stream. In the filter graph, the input is associated
 | 
			
		||||
to the label @code{in}, and the output to the label @code{out}. See
 | 
			
		||||
@@ -399,17 +357,11 @@ syntax.
 | 
			
		||||
See the @ref{filter_complex_option,,-filter_complex option} if you
 | 
			
		||||
want to create filter graphs with multiple inputs and/or outputs.
 | 
			
		||||
 | 
			
		||||
@item -filter_script[:@var{stream_specifier}] @var{filename} (@emph{output,per-stream})
 | 
			
		||||
This option is similar to @option{-filter}, the only difference is that its
 | 
			
		||||
argument is the name of the file from which a filtergraph description is to be
 | 
			
		||||
read.
 | 
			
		||||
 | 
			
		||||
@item -pre[:@var{stream_specifier}] @var{preset_name} (@emph{output,per-stream})
 | 
			
		||||
Specify the preset for matching stream(s).
 | 
			
		||||
 | 
			
		||||
@item -stats (@emph{global})
 | 
			
		||||
Print encoding progress/statistics. It is on by default, to explicitly
 | 
			
		||||
disable it you need to specify @code{-nostats}.
 | 
			
		||||
Print encoding progress/statistics. On by default.
 | 
			
		||||
 | 
			
		||||
@item -progress @var{url} (@emph{global})
 | 
			
		||||
Send program-friendly progress information to @var{url}.
 | 
			
		||||
@@ -470,24 +422,18 @@ Technical note -- attachments are implemented as codec extradata, so this
 | 
			
		||||
option can actually be used to extract extradata from any stream, not just
 | 
			
		||||
attachments.
 | 
			
		||||
 | 
			
		||||
@item -noautorotate
 | 
			
		||||
Disable automatically rotating video based on file metadata.
 | 
			
		||||
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@section Video Options
 | 
			
		||||
 | 
			
		||||
@table @option
 | 
			
		||||
@item -vframes @var{number} (@emph{output})
 | 
			
		||||
Set the number of video frames to output. This is an alias for @code{-frames:v}.
 | 
			
		||||
Set the number of video frames to record. This is an alias for @code{-frames:v}.
 | 
			
		||||
@item -r[:@var{stream_specifier}] @var{fps} (@emph{input/output,per-stream})
 | 
			
		||||
Set frame rate (Hz value, fraction or abbreviation).
 | 
			
		||||
 | 
			
		||||
As an input option, ignore any timestamps stored in the file and instead
 | 
			
		||||
generate timestamps assuming constant frame rate @var{fps}.
 | 
			
		||||
This is not the same as the @option{-framerate} option used for some input formats
 | 
			
		||||
like image2 or v4l2 (it used to be the same in older versions of FFmpeg).
 | 
			
		||||
If in doubt use @option{-framerate} instead of the input option @option{-r}.
 | 
			
		||||
 | 
			
		||||
As an output option, duplicate or drop input frames to achieve constant output
 | 
			
		||||
frame rate @var{fps}.
 | 
			
		||||
@@ -513,10 +459,6 @@ form @var{num}:@var{den}, where @var{num} and @var{den} are the
 | 
			
		||||
numerator and denominator of the aspect ratio. For example "4:3",
 | 
			
		||||
"16:9", "1.3333", and "1.7777" are valid argument values.
 | 
			
		||||
 | 
			
		||||
If used together with @option{-vcodec copy}, it will affect the aspect ratio
 | 
			
		||||
stored at container level, but not the aspect ratio stored in encoded
 | 
			
		||||
frames, if it exists.
 | 
			
		||||
 | 
			
		||||
@item -vn (@emph{output})
 | 
			
		||||
Disable video recording.
 | 
			
		||||
 | 
			
		||||
@@ -542,14 +484,17 @@ prefix is ``ffmpeg2pass''. The complete file name will be
 | 
			
		||||
@file{PREFIX-N.log}, where N is a number specific to the output
 | 
			
		||||
stream
 | 
			
		||||
 | 
			
		||||
@item -vf @var{filtergraph} (@emph{output})
 | 
			
		||||
Create the filtergraph specified by @var{filtergraph} and use it to
 | 
			
		||||
@item -vlang @var{code}
 | 
			
		||||
Set the ISO 639 language code (3 letters) of the current video stream.
 | 
			
		||||
 | 
			
		||||
@item -vf @var{filter_graph} (@emph{output})
 | 
			
		||||
Create the filter graph specified by @var{filter_graph} and use it to
 | 
			
		||||
filter the stream.
 | 
			
		||||
 | 
			
		||||
This is an alias for @code{-filter:v}, see the @ref{filter_option,,-filter option}.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@section Advanced Video options
 | 
			
		||||
@section Advanced Video Options
 | 
			
		||||
 | 
			
		||||
@table @option
 | 
			
		||||
@item -pix_fmt[:@var{stream_specifier}] @var{format} (@emph{input/output,per-stream})
 | 
			
		||||
@@ -574,6 +519,10 @@ list separated with slashes. Two first values are the beginning and
 | 
			
		||||
end frame numbers, last one is quantizer to use if positive, or quality
 | 
			
		||||
factor if negative.
 | 
			
		||||
 | 
			
		||||
@item -deinterlace
 | 
			
		||||
Deinterlace pictures.
 | 
			
		||||
This option is deprecated since the deinterlacing is very low quality.
 | 
			
		||||
Use the yadif filter with @code{-filter:v yadif}.
 | 
			
		||||
@item -ilme
 | 
			
		||||
Force interlacing support in encoder (MPEG-2 and MPEG-4 only).
 | 
			
		||||
Use this option if your input file is interlaced and you want
 | 
			
		||||
@@ -652,63 +601,13 @@ would be more efficient.
 | 
			
		||||
@item -copyinkf[:@var{stream_specifier}] (@emph{output,per-stream})
 | 
			
		||||
When doing stream copy, copy also non-key frames found at the
 | 
			
		||||
beginning.
 | 
			
		||||
 | 
			
		||||
@item -hwaccel[:@var{stream_specifier}] @var{hwaccel} (@emph{input,per-stream})
 | 
			
		||||
Use hardware acceleration to decode the matching stream(s). The allowed values
 | 
			
		||||
of @var{hwaccel} are:
 | 
			
		||||
@table @option
 | 
			
		||||
@item none
 | 
			
		||||
Do not use any hardware acceleration (the default).
 | 
			
		||||
 | 
			
		||||
@item auto
 | 
			
		||||
Automatically select the hardware acceleration method.
 | 
			
		||||
 | 
			
		||||
@item vda
 | 
			
		||||
Use Apple VDA hardware acceleration.
 | 
			
		||||
 | 
			
		||||
@item vdpau
 | 
			
		||||
Use VDPAU (Video Decode and Presentation API for Unix) hardware acceleration.
 | 
			
		||||
 | 
			
		||||
@item dxva2
 | 
			
		||||
Use DXVA2 (DirectX Video Acceleration) hardware acceleration.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
This option has no effect if the selected hwaccel is not available or not
 | 
			
		||||
supported by the chosen decoder.
 | 
			
		||||
 | 
			
		||||
Note that most acceleration methods are intended for playback and will not be
 | 
			
		||||
faster than software decoding on modern CPUs. Additionally, @command{ffmpeg}
 | 
			
		||||
will usually need to copy the decoded frames from the GPU memory into the system
 | 
			
		||||
memory, resulting in further performance loss. This option is thus mainly
 | 
			
		||||
useful for testing.
 | 
			
		||||
 | 
			
		||||
@item -hwaccel_device[:@var{stream_specifier}] @var{hwaccel_device} (@emph{input,per-stream})
 | 
			
		||||
Select a device to use for hardware acceleration.
 | 
			
		||||
 | 
			
		||||
This option only makes sense when the @option{-hwaccel} option is also
 | 
			
		||||
specified. Its exact meaning depends on the specific hardware acceleration
 | 
			
		||||
method chosen.
 | 
			
		||||
 | 
			
		||||
@table @option
 | 
			
		||||
@item vdpau
 | 
			
		||||
For VDPAU, this option specifies the X11 display/screen to use. If this option
 | 
			
		||||
is not specified, the value of the @var{DISPLAY} environment variable is used
 | 
			
		||||
 | 
			
		||||
@item dxva2
 | 
			
		||||
For DXVA2, this option should contain the number of the display adapter to use.
 | 
			
		||||
If this option is not specified, the default adapter is used.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@item -hwaccels
 | 
			
		||||
List all hardware acceleration methods supported in this build of ffmpeg.
 | 
			
		||||
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@section Audio Options
 | 
			
		||||
 | 
			
		||||
@table @option
 | 
			
		||||
@item -aframes @var{number} (@emph{output})
 | 
			
		||||
Set the number of audio frames to output. This is an alias for @code{-frames:a}.
 | 
			
		||||
Set the number of audio frames to record. This is an alias for @code{-frames:a}.
 | 
			
		||||
@item -ar[:@var{stream_specifier}] @var{freq} (@emph{input/output,per-stream})
 | 
			
		||||
Set the audio sampling frequency. For output streams it is set by
 | 
			
		||||
default to the frequency of the corresponding input stream. For input
 | 
			
		||||
@@ -729,14 +628,14 @@ Set the audio codec. This is an alias for @code{-codec:a}.
 | 
			
		||||
Set the audio sample format. Use @code{-sample_fmts} to get a list
 | 
			
		||||
of supported sample formats.
 | 
			
		||||
 | 
			
		||||
@item -af @var{filtergraph} (@emph{output})
 | 
			
		||||
Create the filtergraph specified by @var{filtergraph} and use it to
 | 
			
		||||
@item -af @var{filter_graph} (@emph{output})
 | 
			
		||||
Create the filter graph specified by @var{filter_graph} and use it to
 | 
			
		||||
filter the stream.
 | 
			
		||||
 | 
			
		||||
This is an alias for @code{-filter:a}, see the @ref{filter_option,,-filter option}.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@section Advanced Audio options
 | 
			
		||||
@section Advanced Audio options:
 | 
			
		||||
 | 
			
		||||
@table @option
 | 
			
		||||
@item -atag @var{fourcc/tag} (@emph{output})
 | 
			
		||||
@@ -751,9 +650,11 @@ stereo but not 6 channels as 5.1. The default is to always try to guess. Use
 | 
			
		||||
0 to disable all guessing.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@section Subtitle options
 | 
			
		||||
@section Subtitle options:
 | 
			
		||||
 | 
			
		||||
@table @option
 | 
			
		||||
@item -slang @var{code}
 | 
			
		||||
Set the ISO 639 language code (3 letters) of the current subtitle stream.
 | 
			
		||||
@item -scodec @var{codec} (@emph{input/output})
 | 
			
		||||
Set the subtitle codec. This is an alias for @code{-codec:s}.
 | 
			
		||||
@item -sn (@emph{output})
 | 
			
		||||
@@ -762,7 +663,7 @@ Disable subtitle recording.
 | 
			
		||||
Deprecated, see -bsf
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@section Advanced Subtitle options
 | 
			
		||||
@section Advanced Subtitle options:
 | 
			
		||||
 | 
			
		||||
@table @option
 | 
			
		||||
 | 
			
		||||
@@ -779,9 +680,6 @@ Note that this option will delay the output of all data until the next
 | 
			
		||||
subtitle packet is decoded: it may increase memory consumption and latency a
 | 
			
		||||
lot.
 | 
			
		||||
 | 
			
		||||
@item -canvas_size @var{size}
 | 
			
		||||
Set the size of the canvas used to render subtitles.
 | 
			
		||||
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@section Advanced options
 | 
			
		||||
@@ -840,21 +738,8 @@ To map all the streams except the second audio, use negative mappings
 | 
			
		||||
ffmpeg -i INPUT -map 0 -map -0:a:1 OUTPUT
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
To pick the English audio stream:
 | 
			
		||||
@example
 | 
			
		||||
ffmpeg -i INPUT -map 0:m:language:eng OUTPUT
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
Note that using this option disables the default mappings for this output file.
 | 
			
		||||
 | 
			
		||||
@item -ignore_unknown
 | 
			
		||||
Ignore input streams with unknown type instead of failing if copying
 | 
			
		||||
such streams is attempted.
 | 
			
		||||
 | 
			
		||||
@item -copy_unknown
 | 
			
		||||
Allow input streams with unknown type to be copied instead of failing if copying
 | 
			
		||||
such streams is attempted.
 | 
			
		||||
 | 
			
		||||
@item -map_channel [@var{input_file_id}.@var{stream_specifier}.@var{channel_id}|-1][:@var{output_file_id}.@var{stream_specifier}]
 | 
			
		||||
Map an audio channel from a given input to an output. If
 | 
			
		||||
@var{output_file_id}.@var{stream_specifier} is not set, the audio channel will
 | 
			
		||||
@@ -974,12 +859,13 @@ Dump each input packet to stderr.
 | 
			
		||||
When dumping packets, also dump the payload.
 | 
			
		||||
@item -re (@emph{input})
 | 
			
		||||
Read input at native frame rate. Mainly used to simulate a grab device.
 | 
			
		||||
or live input stream (e.g. when reading from a file). Should not be used
 | 
			
		||||
with actual grab devices or live input streams (where it can cause packet
 | 
			
		||||
loss).
 | 
			
		||||
By default @command{ffmpeg} attempts to read the input(s) as fast as possible.
 | 
			
		||||
This option will slow down the reading of the input(s) to the native frame rate
 | 
			
		||||
of the input(s). It is useful for real-time output (e.g. live streaming).
 | 
			
		||||
of the input(s). It is useful for real-time output (e.g. live streaming). If
 | 
			
		||||
your input(s) is coming from some other live streaming source (through HTTP or
 | 
			
		||||
UDP for example) the server might already be in real-time, thus the option will
 | 
			
		||||
likely not be required. On the other hand, this is meaningful if your input(s)
 | 
			
		||||
is a file you are trying to push in real-time.
 | 
			
		||||
@item -loop_input
 | 
			
		||||
Loop over the input stream. Currently it works only for image
 | 
			
		||||
streams. This option is used for automatic FFserver testing.
 | 
			
		||||
@@ -1010,31 +896,15 @@ Chooses between 1 and 2 depending on muxer capabilities. This is the
 | 
			
		||||
default method.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
Note that the timestamps may be further modified by the muxer, after this.
 | 
			
		||||
For example, in the case that the format option @option{avoid_negative_ts}
 | 
			
		||||
is enabled.
 | 
			
		||||
 | 
			
		||||
With -map you can select from which stream the timestamps should be
 | 
			
		||||
taken. You can leave either video or audio unchanged and sync the
 | 
			
		||||
remaining stream(s) to the unchanged one.
 | 
			
		||||
 | 
			
		||||
@item -frame_drop_threshold @var{parameter}
 | 
			
		||||
Frame drop threshold, which specifies how much behind video frames can
 | 
			
		||||
be before they are dropped. In frame rate units, so 1.0 is one frame.
 | 
			
		||||
The default is -1.1. One possible usecase is to avoid framedrops in case
 | 
			
		||||
of noisy timestamps or to increase frame drop precision in case of exact
 | 
			
		||||
timestamps.
 | 
			
		||||
 | 
			
		||||
@item -async @var{samples_per_second}
 | 
			
		||||
Audio sync method. "Stretches/squeezes" the audio stream to match the timestamps,
 | 
			
		||||
the parameter is the maximum samples per second by which the audio is changed.
 | 
			
		||||
-async 1 is a special case where only the start of the audio stream is corrected
 | 
			
		||||
without any later correction.
 | 
			
		||||
 | 
			
		||||
Note that the timestamps may be further modified by the muxer, after this.
 | 
			
		||||
For example, in the case that the format option @option{avoid_negative_ts}
 | 
			
		||||
is enabled.
 | 
			
		||||
 | 
			
		||||
This option has been deprecated. Use the @code{aresample} audio filter instead.
 | 
			
		||||
 | 
			
		||||
@item -copyts
 | 
			
		||||
@@ -1043,16 +913,9 @@ to sanitize them. In particular, do not remove the initial start time
 | 
			
		||||
offset value.
 | 
			
		||||
 | 
			
		||||
Note that, depending on the @option{vsync} option or on specific muxer
 | 
			
		||||
processing (e.g. in case the format option @option{avoid_negative_ts}
 | 
			
		||||
is enabled) the output timestamps may mismatch with the input
 | 
			
		||||
processing, the output timestamps may mismatch with the input
 | 
			
		||||
timestamps even when this option is selected.
 | 
			
		||||
 | 
			
		||||
@item -start_at_zero
 | 
			
		||||
When used with @option{copyts}, shift input timestamps so they start at zero.
 | 
			
		||||
 | 
			
		||||
This means that using e.g. @code{-ss 50} will make output timestamps start at
 | 
			
		||||
50 seconds, regardless of what timestamp the input file started at.
 | 
			
		||||
 | 
			
		||||
@item -copytb @var{mode}
 | 
			
		||||
Specify how to set the encoder timebase when stream copying.  @var{mode} is an
 | 
			
		||||
integer numeric value, and can assume one of the following values:
 | 
			
		||||
@@ -1108,7 +971,7 @@ ffmpeg -i h264.mp4 -c:v copy -bsf:v h264_mp4toannexb -an out.h264
 | 
			
		||||
ffmpeg -i file.mov -an -vn -bsf:s mov2textsub -c:s copy -f rawvideo sub.txt
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@item -tag[:@var{stream_specifier}] @var{codec_tag} (@emph{input/output,per-stream})
 | 
			
		||||
@item -tag[:@var{stream_specifier}] @var{codec_tag} (@emph{per-stream})
 | 
			
		||||
Force a tag/fourcc for matching streams.
 | 
			
		||||
 | 
			
		||||
@item -timecode @var{hh}:@var{mm}:@var{ss}SEP@var{ff}
 | 
			
		||||
@@ -1165,77 +1028,6 @@ To generate 5 seconds of pure red video using lavfi @code{color} source:
 | 
			
		||||
@example
 | 
			
		||||
ffmpeg -filter_complex 'color=c=red' -t 5 out.mkv
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@item -lavfi @var{filtergraph} (@emph{global})
 | 
			
		||||
Define a complex filtergraph, i.e. one with arbitrary number of inputs and/or
 | 
			
		||||
outputs. Equivalent to @option{-filter_complex}.
 | 
			
		||||
 | 
			
		||||
@item -filter_complex_script @var{filename} (@emph{global})
 | 
			
		||||
This option is similar to @option{-filter_complex}, the only difference is that
 | 
			
		||||
its argument is the name of the file from which a complex filtergraph
 | 
			
		||||
description is to be read.
 | 
			
		||||
 | 
			
		||||
@item -accurate_seek (@emph{input})
 | 
			
		||||
This option enables or disables accurate seeking in input files with the
 | 
			
		||||
@option{-ss} option. It is enabled by default, so seeking is accurate when
 | 
			
		||||
transcoding. Use @option{-noaccurate_seek} to disable it, which may be useful
 | 
			
		||||
e.g. when copying some streams and transcoding the others.
 | 
			
		||||
 | 
			
		||||
@item -seek_timestamp (@emph{input})
 | 
			
		||||
This option enables or disables seeking by timestamp in input files with the
 | 
			
		||||
@option{-ss} option. It is disabled by default. If enabled, the argument
 | 
			
		||||
to the @option{-ss} option is considered an actual timestamp, and is not
 | 
			
		||||
offset by the start time of the file. This matters only for files which do
 | 
			
		||||
not start from timestamp 0, such as transport streams.
 | 
			
		||||
 | 
			
		||||
@item -thread_queue_size @var{size} (@emph{input})
 | 
			
		||||
This option sets the maximum number of queued packets when reading from the
 | 
			
		||||
file or device. With low latency / high rate live streams, packets may be
 | 
			
		||||
discarded if they are not read in a timely manner; raising this value can
 | 
			
		||||
avoid it.
 | 
			
		||||
 | 
			
		||||
@item -override_ffserver (@emph{global})
 | 
			
		||||
Overrides the input specifications from @command{ffserver}. Using this
 | 
			
		||||
option you can map any input stream to @command{ffserver} and control
 | 
			
		||||
many aspects of the encoding from @command{ffmpeg}. Without this
 | 
			
		||||
option @command{ffmpeg} will transmit to @command{ffserver} what is
 | 
			
		||||
requested by @command{ffserver}.
 | 
			
		||||
 | 
			
		||||
The option is intended for cases where features are needed that cannot be
 | 
			
		||||
specified to @command{ffserver} but can be to @command{ffmpeg}.
 | 
			
		||||
 | 
			
		||||
@item -sdp_file @var{file} (@emph{global})
 | 
			
		||||
Print sdp information for an output stream to @var{file}.
 | 
			
		||||
This allows dumping sdp information when at least one output isn't an
 | 
			
		||||
rtp stream. (Requires at least one of the output formats to be rtp).
 | 
			
		||||
 | 
			
		||||
@item -discard (@emph{input})
 | 
			
		||||
Allows discarding specific streams or frames of streams at the demuxer.
 | 
			
		||||
Not all demuxers support this.
 | 
			
		||||
 | 
			
		||||
@table @option
 | 
			
		||||
@item none
 | 
			
		||||
Discard no frame.
 | 
			
		||||
 | 
			
		||||
@item default
 | 
			
		||||
Default, which discards no frames.
 | 
			
		||||
 | 
			
		||||
@item noref
 | 
			
		||||
Discard all non-reference frames.
 | 
			
		||||
 | 
			
		||||
@item bidir
 | 
			
		||||
Discard all bidirectional frames.
 | 
			
		||||
 | 
			
		||||
@item nokey
 | 
			
		||||
Discard all frames excepts keyframes.
 | 
			
		||||
 | 
			
		||||
@item all
 | 
			
		||||
Discard all frames.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@item -xerror (@emph{global})
 | 
			
		||||
Stop and exit on error
 | 
			
		||||
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
As a special exception, you can use a bitmap subtitle stream as input: it
 | 
			
		||||
@@ -1261,10 +1053,7 @@ awkward to specify on the command line. Lines starting with the hash
 | 
			
		||||
('#') character are ignored and are used to provide comments. Check
 | 
			
		||||
the @file{presets} directory in the FFmpeg source tree for examples.
 | 
			
		||||
 | 
			
		||||
There are two types of preset files: ffpreset and avpreset files.
 | 
			
		||||
 | 
			
		||||
@subsection ffpreset files
 | 
			
		||||
ffpreset files are specified with the @code{vpre}, @code{apre},
 | 
			
		||||
Preset files are specified with the @code{vpre}, @code{apre},
 | 
			
		||||
@code{spre}, and @code{fpre} options. The @code{fpre} option takes the
 | 
			
		||||
filename of the preset instead of a preset name as input and can be
 | 
			
		||||
used for any kind of codec. For the @code{vpre}, @code{apre}, and
 | 
			
		||||
@@ -1289,31 +1078,67 @@ directories, where @var{codec_name} is the name of the codec to which
 | 
			
		||||
the preset file options will be applied. For example, if you select
 | 
			
		||||
the video codec with @code{-vcodec libvpx} and use @code{-vpre 1080p},
 | 
			
		||||
then it will search for the file @file{libvpx-1080p.ffpreset}.
 | 
			
		||||
 | 
			
		||||
@subsection avpreset files
 | 
			
		||||
avpreset files are specified with the @code{pre} option. They work similar to
 | 
			
		||||
ffpreset files, but they only allow encoder- specific options. Therefore, an
 | 
			
		||||
@var{option}=@var{value} pair specifying an encoder cannot be used.
 | 
			
		||||
 | 
			
		||||
When the @code{pre} option is specified, ffmpeg will look for files with the
 | 
			
		||||
suffix .avpreset in the directories @file{$AVCONV_DATADIR} (if set), and
 | 
			
		||||
@file{$HOME/.avconv}, and in the datadir defined at configuration time (usually
 | 
			
		||||
@file{PREFIX/share/ffmpeg}), in that order.
 | 
			
		||||
 | 
			
		||||
First ffmpeg searches for a file named @var{codec_name}-@var{arg}.avpreset in
 | 
			
		||||
the above-mentioned directories, where @var{codec_name} is the name of the codec
 | 
			
		||||
to which the preset file options will be applied. For example, if you select the
 | 
			
		||||
video codec with @code{-vcodec libvpx} and use @code{-pre 1080p}, then it will
 | 
			
		||||
search for the file @file{libvpx-1080p.avpreset}.
 | 
			
		||||
 | 
			
		||||
If no such file is found, then ffmpeg will search for a file named
 | 
			
		||||
@var{arg}.avpreset in the same directories.
 | 
			
		||||
 | 
			
		||||
@c man end OPTIONS
 | 
			
		||||
 | 
			
		||||
@chapter Tips
 | 
			
		||||
@c man begin TIPS
 | 
			
		||||
 | 
			
		||||
@itemize
 | 
			
		||||
@item
 | 
			
		||||
For streaming at very low bitrate application, use a low frame rate
 | 
			
		||||
and a small GOP size. This is especially true for RealVideo where
 | 
			
		||||
the Linux player does not seem to be very fast, so it can miss
 | 
			
		||||
frames. An example is:
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
ffmpeg -g 3 -r 3 -t 10 -b:v 50k -s qcif -f rv10 /tmp/b.rm
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
The parameter 'q' which is displayed while encoding is the current
 | 
			
		||||
quantizer. The value 1 indicates that a very good quality could
 | 
			
		||||
be achieved. The value 31 indicates the worst quality. If q=31 appears
 | 
			
		||||
too often, it means that the encoder cannot compress enough to meet
 | 
			
		||||
your bitrate. You must either increase the bitrate, decrease the
 | 
			
		||||
frame rate or decrease the frame size.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
If your computer is not fast enough, you can speed up the
 | 
			
		||||
compression at the expense of the compression ratio. You can use
 | 
			
		||||
'-me zero' to speed up motion estimation, and '-g 0' to disable
 | 
			
		||||
motion estimation completely (you have only I-frames, which means it
 | 
			
		||||
is about as good as JPEG compression).
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
To have very low audio bitrates, reduce the sampling frequency
 | 
			
		||||
(down to 22050 Hz for MPEG audio, 22050 or 11025 for AC-3).
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
To have a constant quality (but a variable bitrate), use the option
 | 
			
		||||
'-qscale n' when 'n' is between 1 (excellent quality) and 31 (worst
 | 
			
		||||
quality).
 | 
			
		||||
 | 
			
		||||
@end itemize
 | 
			
		||||
@c man end TIPS
 | 
			
		||||
 | 
			
		||||
@chapter Examples
 | 
			
		||||
@c man begin EXAMPLES
 | 
			
		||||
 | 
			
		||||
@section Preset files
 | 
			
		||||
 | 
			
		||||
A preset file contains a sequence of @var{option=value} pairs, one for
 | 
			
		||||
each line, specifying a sequence of options which can be specified also on
 | 
			
		||||
the command line. Lines starting with the hash ('#') character are ignored and
 | 
			
		||||
are used to provide comments. Empty lines are also ignored. Check the
 | 
			
		||||
@file{presets} directory in the FFmpeg source tree for examples.
 | 
			
		||||
 | 
			
		||||
Preset files are specified with the @code{pre} option, this option takes a
 | 
			
		||||
preset name as input.  FFmpeg searches for a file named @var{preset_name}.avpreset in
 | 
			
		||||
the directories @file{$AVCONV_DATADIR} (if set), and @file{$HOME/.ffmpeg}, and in
 | 
			
		||||
the data directory defined at configuration time (usually @file{$PREFIX/share/ffmpeg})
 | 
			
		||||
in that order.  For example, if the argument is @code{libx264-max}, it will
 | 
			
		||||
search for the file @file{libx264-max.avpreset}.
 | 
			
		||||
 | 
			
		||||
@section Video and Audio grabbing
 | 
			
		||||
 | 
			
		||||
If you specify the input format and device then ffmpeg can grab video
 | 
			
		||||
@@ -1339,14 +1164,14 @@ standard mixer.
 | 
			
		||||
Grab the X11 display with ffmpeg via
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
ffmpeg -f x11grab -video_size cif -framerate 25 -i :0.0 /tmp/out.mpg
 | 
			
		||||
ffmpeg -f x11grab -s cif -r 25 -i :0.0 /tmp/out.mpg
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
0.0 is display.screen number of your X11 server, same as
 | 
			
		||||
the DISPLAY environment variable.
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
ffmpeg -f x11grab -video_size cif -framerate 25 -i :0.0+10,20 /tmp/out.mpg
 | 
			
		||||
ffmpeg -f x11grab -s cif -r 25 -i :0.0+10,20 /tmp/out.mpg
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
0.0 is display.screen number of your X11 server, same as the DISPLAY environment
 | 
			
		||||
@@ -1461,7 +1286,7 @@ combination with -ss to start extracting from a certain point in time.
 | 
			
		||||
 | 
			
		||||
For creating a video from many images:
 | 
			
		||||
@example
 | 
			
		||||
ffmpeg -f image2 -framerate 12 -i foo-%03d.jpeg -s WxH foo.avi
 | 
			
		||||
ffmpeg -f image2 -i foo-%03d.jpeg -r 12 -s WxH foo.avi
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
The syntax @code{foo-%03d.jpeg} specifies to use a decimal number
 | 
			
		||||
@@ -1476,18 +1301,18 @@ image2-specific @code{-pattern_type glob} option.
 | 
			
		||||
For example, for creating a video from filenames matching the glob pattern
 | 
			
		||||
@code{foo-*.jpeg}:
 | 
			
		||||
@example
 | 
			
		||||
ffmpeg -f image2 -pattern_type glob -framerate 12 -i 'foo-*.jpeg' -s WxH foo.avi
 | 
			
		||||
ffmpeg -f image2 -pattern_type glob -i 'foo-*.jpeg' -r 12 -s WxH foo.avi
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
You can put many streams of the same type in the output:
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
ffmpeg -i test1.avi -i test2.avi -map 1:1 -map 1:0 -map 0:1 -map 0:0 -c copy -y test12.nut
 | 
			
		||||
ffmpeg -i test1.avi -i test2.avi -map 0:3 -map 0:2 -map 0:1 -map 0:0 -c copy test12.nut
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
The resulting output file @file{test12.nut} will contain the first four streams
 | 
			
		||||
from the input files in reverse order.
 | 
			
		||||
The resulting output file @file{test12.avi} will contain first four streams from
 | 
			
		||||
the input file in reverse order.
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
To force CBR video output:
 | 
			
		||||
@@ -1505,42 +1330,9 @@ ffmpeg -i src.ext -lmax 21*QP2LAMBDA dst.ext
 | 
			
		||||
@end itemize
 | 
			
		||||
@c man end EXAMPLES
 | 
			
		||||
 | 
			
		||||
@include config.texi
 | 
			
		||||
@ifset config-all
 | 
			
		||||
@ifset config-avutil
 | 
			
		||||
@include utils.texi
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-avcodec
 | 
			
		||||
@include codecs.texi
 | 
			
		||||
@include bitstream_filters.texi
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-avformat
 | 
			
		||||
@include formats.texi
 | 
			
		||||
@include protocols.texi
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-avdevice
 | 
			
		||||
@include devices.texi
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-swresample
 | 
			
		||||
@include resampler.texi
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-swscale
 | 
			
		||||
@include scaler.texi
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-avfilter
 | 
			
		||||
@include filters.texi
 | 
			
		||||
@end ifset
 | 
			
		||||
@end ifset
 | 
			
		||||
 | 
			
		||||
@chapter See Also
 | 
			
		||||
 | 
			
		||||
@ifhtml
 | 
			
		||||
@ifset config-all
 | 
			
		||||
@url{ffmpeg.html,ffmpeg}
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-not-all
 | 
			
		||||
@url{ffmpeg-all.html,ffmpeg-all},
 | 
			
		||||
@end ifset
 | 
			
		||||
@url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
 | 
			
		||||
@url{ffmpeg-utils.html,ffmpeg-utils},
 | 
			
		||||
@url{ffmpeg-scaler.html,ffmpeg-scaler},
 | 
			
		||||
@@ -1554,12 +1346,6 @@ ffmpeg -i src.ext -lmax 21*QP2LAMBDA dst.ext
 | 
			
		||||
@end ifhtml
 | 
			
		||||
 | 
			
		||||
@ifnothtml
 | 
			
		||||
@ifset config-all
 | 
			
		||||
ffmpeg(1),
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-not-all
 | 
			
		||||
ffmpeg-all(1),
 | 
			
		||||
@end ifset
 | 
			
		||||
ffplay(1), ffprobe(1), ffserver(1),
 | 
			
		||||
ffmpeg-utils(1), ffmpeg-scaler(1), ffmpeg-resampler(1),
 | 
			
		||||
ffmpeg-codecs(1), ffmpeg-bitstream-filters(1), ffmpeg-formats(1),
 | 
			
		||||
 
 | 
			
		||||
							
								
								
									
										151
									
								
								doc/ffplay.texi
									
									
									
									
									
								
							
							
						
						
									
										151
									
								
								doc/ffplay.texi
									
									
									
									
									
								
							@@ -1,5 +1,4 @@
 | 
			
		||||
\input texinfo @c -*- texinfo -*-
 | 
			
		||||
@documentencoding UTF-8
 | 
			
		||||
 | 
			
		||||
@settitle ffplay Documentation
 | 
			
		||||
@titlepage
 | 
			
		||||
@@ -25,7 +24,7 @@ various FFmpeg APIs.
 | 
			
		||||
@chapter Options
 | 
			
		||||
@c man begin OPTIONS
 | 
			
		||||
 | 
			
		||||
@include fftools-common-opts.texi
 | 
			
		||||
@include avtools-common-opts.texi
 | 
			
		||||
 | 
			
		||||
@section Main options
 | 
			
		||||
 | 
			
		||||
@@ -38,26 +37,14 @@ Force displayed height.
 | 
			
		||||
Set frame size (WxH or abbreviation), needed for videos which do
 | 
			
		||||
not contain a header with the frame size like raw YUV.  This option
 | 
			
		||||
has been deprecated in favor of private options, try -video_size.
 | 
			
		||||
@item -fs
 | 
			
		||||
Start in fullscreen mode.
 | 
			
		||||
@item -an
 | 
			
		||||
Disable audio.
 | 
			
		||||
@item -vn
 | 
			
		||||
Disable video.
 | 
			
		||||
@item -sn
 | 
			
		||||
Disable subtitles.
 | 
			
		||||
@item -ss @var{pos}
 | 
			
		||||
Seek to @var{pos}. Note that in most formats it is not possible to seek
 | 
			
		||||
exactly, so @command{ffplay} will seek to the nearest seek point to
 | 
			
		||||
@var{pos}.
 | 
			
		||||
 | 
			
		||||
@var{pos} must be a time duration specification,
 | 
			
		||||
see @ref{time duration syntax,,the Time duration section in the ffmpeg-utils(1) manual,ffmpeg-utils}.
 | 
			
		||||
Seek to a given position in seconds.
 | 
			
		||||
@item -t @var{duration}
 | 
			
		||||
Play @var{duration} seconds of audio/video.
 | 
			
		||||
 | 
			
		||||
@var{duration} must be a time duration specification,
 | 
			
		||||
see @ref{time duration syntax,,the Time duration section in the ffmpeg-utils(1) manual,ffmpeg-utils}.
 | 
			
		||||
play <duration> seconds of audio/video
 | 
			
		||||
@item -bytes
 | 
			
		||||
Seek by bytes.
 | 
			
		||||
@item -nodisp
 | 
			
		||||
@@ -86,26 +73,17 @@ Default value is "video", if video is not present or cannot be played
 | 
			
		||||
You can interactively cycle through the available show modes by
 | 
			
		||||
pressing the key @key{w}.
 | 
			
		||||
 | 
			
		||||
@item -vf @var{filtergraph}
 | 
			
		||||
Create the filtergraph specified by @var{filtergraph} and use it to
 | 
			
		||||
@item -vf @var{filter_graph}
 | 
			
		||||
Create the filter graph specified by @var{filter_graph} and use it to
 | 
			
		||||
filter the video stream.
 | 
			
		||||
 | 
			
		||||
@var{filtergraph} is a description of the filtergraph to apply to
 | 
			
		||||
@var{filter_graph} is a description of the filter graph to apply to
 | 
			
		||||
the stream, and must have a single video input and a single video
 | 
			
		||||
output. In the filter graph, the input is associated to the label
 | 
			
		||||
@code{in}, and the output to the label @code{out}. See the
 | 
			
		||||
ffmpeg-filters manual for more information about the filtergraph
 | 
			
		||||
syntax.
 | 
			
		||||
 | 
			
		||||
You can specify this parameter multiple times and cycle through the specified
 | 
			
		||||
filtergraphs along with the show modes by pressing the key @key{w}.
 | 
			
		||||
 | 
			
		||||
@item -af @var{filtergraph}
 | 
			
		||||
@var{filtergraph} is a description of the filtergraph to apply to
 | 
			
		||||
the input audio.
 | 
			
		||||
Use the option "-filters" to show all the available filters (including
 | 
			
		||||
sources and sinks).
 | 
			
		||||
 | 
			
		||||
@item -i @var{input_file}
 | 
			
		||||
Read @var{input_file}.
 | 
			
		||||
@end table
 | 
			
		||||
@@ -115,17 +93,18 @@ Read @var{input_file}.
 | 
			
		||||
@item -pix_fmt @var{format}
 | 
			
		||||
Set pixel format.
 | 
			
		||||
This option has been deprecated in favor of private options, try -pixel_format.
 | 
			
		||||
 | 
			
		||||
@item -stats
 | 
			
		||||
Print several playback statistics, in particular show the stream
 | 
			
		||||
duration, the codec parameters, the current position in the stream and
 | 
			
		||||
the audio/video synchronisation drift. It is on by default, to
 | 
			
		||||
explicitly disable it you need to specify @code{-nostats}.
 | 
			
		||||
 | 
			
		||||
Show the stream duration, the codec parameters, the current position in
 | 
			
		||||
the stream and the audio/video synchronisation drift.
 | 
			
		||||
@item -bug
 | 
			
		||||
Work around bugs.
 | 
			
		||||
@item -fast
 | 
			
		||||
Non-spec-compliant optimizations.
 | 
			
		||||
@item -genpts
 | 
			
		||||
Generate pts.
 | 
			
		||||
@item -rtp_tcp
 | 
			
		||||
Force RTP/TCP protocol usage instead of RTP/UDP. It is only meaningful
 | 
			
		||||
if you are streaming with the RTSP protocol.
 | 
			
		||||
@item -sync @var{type}
 | 
			
		||||
Set the master clock to audio (@code{type=audio}), video
 | 
			
		||||
(@code{type=video}) or external (@code{type=ext}). Default is audio. The
 | 
			
		||||
@@ -133,20 +112,23 @@ master clock is used to control audio-video synchronization. Most media
 | 
			
		||||
players use audio as master clock, but in some cases (streaming or high
 | 
			
		||||
quality broadcast) it is necessary to change that. This option is mainly
 | 
			
		||||
used for debugging purposes.
 | 
			
		||||
@item -ast @var{audio_stream_specifier}
 | 
			
		||||
Select the desired audio stream using the given stream specifier. The stream
 | 
			
		||||
specifiers are described in the @ref{Stream specifiers} chapter. If this option
 | 
			
		||||
is not specified, the "best" audio stream is selected in the program of the
 | 
			
		||||
already selected video stream.
 | 
			
		||||
@item -vst @var{video_stream_specifier}
 | 
			
		||||
Select the desired video stream using the given stream specifier. The stream
 | 
			
		||||
specifiers are described in the @ref{Stream specifiers} chapter. If this option
 | 
			
		||||
is not specified, the "best" video stream is selected.
 | 
			
		||||
@item -sst @var{subtitle_stream_specifier}
 | 
			
		||||
Select the desired subtitle stream using the given stream specifier. The stream
 | 
			
		||||
specifiers are described in the @ref{Stream specifiers} chapter. If this option
 | 
			
		||||
is not specified, the "best" subtitle stream is selected in the program of the
 | 
			
		||||
already selected video or audio stream.
 | 
			
		||||
@item -threads @var{count}
 | 
			
		||||
Set the thread count.
 | 
			
		||||
@item -ast @var{audio_stream_number}
 | 
			
		||||
Select the desired audio stream number, counting from 0. The number
 | 
			
		||||
refers to the list of all the input audio streams. If it is greater
 | 
			
		||||
than the number of audio streams minus one, then the last one is
 | 
			
		||||
selected, if it is negative the audio playback is disabled.
 | 
			
		||||
@item -vst @var{video_stream_number}
 | 
			
		||||
Select the desired video stream number, counting from 0. The number
 | 
			
		||||
refers to the list of all the input video streams. If it is greater
 | 
			
		||||
than the number of video streams minus one, then the last one is
 | 
			
		||||
selected, if it is negative the video playback is disabled.
 | 
			
		||||
@item -sst @var{subtitle_stream_number}
 | 
			
		||||
Select the desired subtitle stream number, counting from 0. The number
 | 
			
		||||
refers to the list of all the input subtitle streams. If it is greater
 | 
			
		||||
than the number of subtitle streams minus one, then the last one is
 | 
			
		||||
selected, if it is negative the subtitle rendering is disabled.
 | 
			
		||||
@item -autoexit
 | 
			
		||||
Exit when video is done playing.
 | 
			
		||||
@item -exitonkeydown
 | 
			
		||||
@@ -167,22 +149,6 @@ Force a specific video decoder.
 | 
			
		||||
 | 
			
		||||
@item -scodec @var{codec_name}
 | 
			
		||||
Force a specific subtitle decoder.
 | 
			
		||||
 | 
			
		||||
@item -autorotate
 | 
			
		||||
Automatically rotate the video according to file metadata. Enabled by
 | 
			
		||||
default, use @option{-noautorotate} to disable it.
 | 
			
		||||
 | 
			
		||||
@item -framedrop
 | 
			
		||||
Drop video frames if video is out of sync. Enabled by default if the master
 | 
			
		||||
clock is not set to video. Use this option to enable frame dropping for all
 | 
			
		||||
master clock sources, use @option{-noframedrop} to disable it.
 | 
			
		||||
 | 
			
		||||
@item -infbuf
 | 
			
		||||
Do not limit the input buffer size, read as much data as possible from the
 | 
			
		||||
input as soon as possible. Enabled by default for realtime streams, where data
 | 
			
		||||
may be dropped if not read in time. Use this option to enable infinite buffers
 | 
			
		||||
for all inputs, use @option{-noinfbuf} to disable it.
 | 
			
		||||
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@section While playing
 | 
			
		||||
@@ -198,25 +164,16 @@ Toggle full screen.
 | 
			
		||||
Pause.
 | 
			
		||||
 | 
			
		||||
@item a
 | 
			
		||||
Cycle audio channel in the current program.
 | 
			
		||||
Cycle audio channel.
 | 
			
		||||
 | 
			
		||||
@item v
 | 
			
		||||
Cycle video channel.
 | 
			
		||||
 | 
			
		||||
@item t
 | 
			
		||||
Cycle subtitle channel in the current program.
 | 
			
		||||
 | 
			
		||||
@item c
 | 
			
		||||
Cycle program.
 | 
			
		||||
Cycle subtitle channel.
 | 
			
		||||
 | 
			
		||||
@item w
 | 
			
		||||
Cycle video filters or show modes.
 | 
			
		||||
 | 
			
		||||
@item s
 | 
			
		||||
Step to the next frame.
 | 
			
		||||
 | 
			
		||||
Pause if the stream is not already paused, step to the next video
 | 
			
		||||
frame, and pause.
 | 
			
		||||
Show audio waves.
 | 
			
		||||
 | 
			
		||||
@item left/right
 | 
			
		||||
Seek backward/forward 10 seconds.
 | 
			
		||||
@@ -225,8 +182,6 @@ Seek backward/forward 10 seconds.
 | 
			
		||||
Seek backward/forward 1 minute.
 | 
			
		||||
 | 
			
		||||
@item page down/page up
 | 
			
		||||
Seek to the previous/next chapter.
 | 
			
		||||
or if there are no chapters
 | 
			
		||||
Seek backward/forward 10 minutes.
 | 
			
		||||
 | 
			
		||||
@item mouse click
 | 
			
		||||
@@ -236,43 +191,9 @@ Seek to percentage in file corresponding to fraction of width.
 | 
			
		||||
 | 
			
		||||
@c man end
 | 
			
		||||
 | 
			
		||||
@include config.texi
 | 
			
		||||
@ifset config-all
 | 
			
		||||
@set config-readonly
 | 
			
		||||
@ifset config-avutil
 | 
			
		||||
@include utils.texi
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-avcodec
 | 
			
		||||
@include codecs.texi
 | 
			
		||||
@include bitstream_filters.texi
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-avformat
 | 
			
		||||
@include formats.texi
 | 
			
		||||
@include protocols.texi
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-avdevice
 | 
			
		||||
@include devices.texi
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-swresample
 | 
			
		||||
@include resampler.texi
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-swscale
 | 
			
		||||
@include scaler.texi
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-avfilter
 | 
			
		||||
@include filters.texi
 | 
			
		||||
@end ifset
 | 
			
		||||
@end ifset
 | 
			
		||||
 | 
			
		||||
@chapter See Also
 | 
			
		||||
 | 
			
		||||
@ifhtml
 | 
			
		||||
@ifset config-all
 | 
			
		||||
@url{ffplay.html,ffplay},
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-not-all
 | 
			
		||||
@url{ffplay-all.html,ffmpeg-all},
 | 
			
		||||
@end ifset
 | 
			
		||||
@url{ffmpeg.html,ffmpeg}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
 | 
			
		||||
@url{ffmpeg-utils.html,ffmpeg-utils},
 | 
			
		||||
@url{ffmpeg-scaler.html,ffmpeg-scaler},
 | 
			
		||||
@@ -286,12 +207,6 @@ Seek to percentage in file corresponding to fraction of width.
 | 
			
		||||
@end ifhtml
 | 
			
		||||
 | 
			
		||||
@ifnothtml
 | 
			
		||||
@ifset config-all
 | 
			
		||||
ffplay(1),
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-not-all
 | 
			
		||||
ffplay-all(1),
 | 
			
		||||
@end ifset
 | 
			
		||||
ffmpeg(1), ffprobe(1), ffserver(1),
 | 
			
		||||
ffmpeg-utils(1), ffmpeg-scaler(1), ffmpeg-resampler(1),
 | 
			
		||||
ffmpeg-codecs(1), ffmpeg-bitstream-filters(1), ffmpeg-formats(1),
 | 
			
		||||
 
 | 
			
		||||
							
								
								
									
										214
									
								
								doc/ffprobe.texi
									
									
									
									
									
								
							
							
						
						
									
										214
									
								
								doc/ffprobe.texi
									
									
									
									
									
								
							@@ -1,5 +1,4 @@
 | 
			
		||||
\input texinfo @c -*- texinfo -*-
 | 
			
		||||
@documentencoding UTF-8
 | 
			
		||||
 | 
			
		||||
@settitle ffprobe Documentation
 | 
			
		||||
@titlepage
 | 
			
		||||
@@ -45,15 +44,14 @@ name (which may be shared by other sections), and an unique
 | 
			
		||||
name. See the output of @option{sections}.
 | 
			
		||||
 | 
			
		||||
Metadata tags stored in the container or in the streams are recognized
 | 
			
		||||
and printed in the corresponding "FORMAT", "STREAM" or "PROGRAM_STREAM"
 | 
			
		||||
section.
 | 
			
		||||
and printed in the corresponding "FORMAT" or "STREAM" section.
 | 
			
		||||
 | 
			
		||||
@c man end
 | 
			
		||||
 | 
			
		||||
@chapter Options
 | 
			
		||||
@c man begin OPTIONS
 | 
			
		||||
 | 
			
		||||
@include fftools-common-opts.texi
 | 
			
		||||
@include avtools-common-opts.texi
 | 
			
		||||
 | 
			
		||||
@section Main options
 | 
			
		||||
 | 
			
		||||
@@ -114,16 +112,12 @@ ffprobe -show_packets -select_streams v:1 INPUT
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@item -show_data
 | 
			
		||||
Show payload data, as a hexadecimal and ASCII dump. Coupled with
 | 
			
		||||
Show payload data, as an hexadecimal and ASCII dump. Coupled with
 | 
			
		||||
@option{-show_packets}, it will dump the packets' data. Coupled with
 | 
			
		||||
@option{-show_streams}, it will dump the codec extradata.
 | 
			
		||||
 | 
			
		||||
The dump is printed as the "data" field. It may contain newlines.
 | 
			
		||||
 | 
			
		||||
@item -show_data_hash @var{algorithm}
 | 
			
		||||
Show a hash of payload data, for packets with @option{-show_packets} and for
 | 
			
		||||
codec extradata with @option{-show_streams}.
 | 
			
		||||
 | 
			
		||||
@item -show_error
 | 
			
		||||
Show information about the error found when trying to probe the input.
 | 
			
		||||
 | 
			
		||||
@@ -185,7 +179,7 @@ format : stream=codec_type
 | 
			
		||||
 | 
			
		||||
To show all the tags in the stream and format sections:
 | 
			
		||||
@example
 | 
			
		||||
stream_tags : format_tags
 | 
			
		||||
format_tags : format_tags
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
To show only the @code{title} tag (if available) in the stream
 | 
			
		||||
@@ -202,11 +196,11 @@ The information for each single packet is printed within a dedicated
 | 
			
		||||
section with name "PACKET".
 | 
			
		||||
 | 
			
		||||
@item -show_frames
 | 
			
		||||
Show information about each frame and subtitle contained in the input
 | 
			
		||||
multimedia stream.
 | 
			
		||||
Show information about each frame contained in the input multimedia
 | 
			
		||||
stream.
 | 
			
		||||
 | 
			
		||||
The information for each single frame is printed within a dedicated
 | 
			
		||||
section with name "FRAME" or "SUBTITLE".
 | 
			
		||||
section with name "FRAME".
 | 
			
		||||
 | 
			
		||||
@item -show_streams
 | 
			
		||||
Show information about each media stream contained in the input
 | 
			
		||||
@@ -215,18 +209,6 @@ multimedia stream.
 | 
			
		||||
Each media stream information is printed within a dedicated section
 | 
			
		||||
with name "STREAM".
 | 
			
		||||
 | 
			
		||||
@item -show_programs
 | 
			
		||||
Show information about programs and their streams contained in the input
 | 
			
		||||
multimedia stream.
 | 
			
		||||
 | 
			
		||||
Each media stream information is printed within a dedicated section
 | 
			
		||||
with name "PROGRAM_STREAM".
 | 
			
		||||
 | 
			
		||||
@item -show_chapters
 | 
			
		||||
Show information about chapters stored in the format.
 | 
			
		||||
 | 
			
		||||
Each chapter is printed within a dedicated section with name "CHAPTER".
 | 
			
		||||
 | 
			
		||||
@item -count_frames
 | 
			
		||||
Count the number of frames per stream and report it in the
 | 
			
		||||
corresponding stream section.
 | 
			
		||||
@@ -235,70 +217,6 @@ corresponding stream section.
 | 
			
		||||
Count the number of packets per stream and report it in the
 | 
			
		||||
corresponding stream section.
 | 
			
		||||
 | 
			
		||||
@item -read_intervals @var{read_intervals}
 | 
			
		||||
 | 
			
		||||
Read only the specified intervals. @var{read_intervals} must be a
 | 
			
		||||
sequence of interval specifications separated by ",".
 | 
			
		||||
@command{ffprobe} will seek to the interval starting point, and will
 | 
			
		||||
continue reading from that.
 | 
			
		||||
 | 
			
		||||
Each interval is specified by two optional parts, separated by "%".
 | 
			
		||||
 | 
			
		||||
The first part specifies the interval start position. It is
 | 
			
		||||
interpreted as an abolute position, or as a relative offset from the
 | 
			
		||||
current position if it is preceded by the "+" character. If this first
 | 
			
		||||
part is not specified, no seeking will be performed when reading this
 | 
			
		||||
interval.
 | 
			
		||||
 | 
			
		||||
The second part specifies the interval end position. It is interpreted
 | 
			
		||||
as an absolute position, or as a relative offset from the current
 | 
			
		||||
position if it is preceded by the "+" character. If the offset
 | 
			
		||||
specification starts with "#", it is interpreted as the number of
 | 
			
		||||
packets to read (not including the flushing packets) from the interval
 | 
			
		||||
start. If no second part is specified, the program will read until the
 | 
			
		||||
end of the input.
 | 
			
		||||
 | 
			
		||||
Note that seeking is not accurate, thus the actual interval start
 | 
			
		||||
point may be different from the specified position. Also, when an
 | 
			
		||||
interval duration is specified, the absolute end time will be computed
 | 
			
		||||
by adding the duration to the interval start point found by seeking
 | 
			
		||||
the file, rather than to the specified start value.
 | 
			
		||||
 | 
			
		||||
The formal syntax is given by:
 | 
			
		||||
@example
 | 
			
		||||
@var{INTERVAL}  ::= [@var{START}|+@var{START_OFFSET}][%[@var{END}|+@var{END_OFFSET}]]
 | 
			
		||||
@var{INTERVALS} ::= @var{INTERVAL}[,@var{INTERVALS}]
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
A few examples follow.
 | 
			
		||||
@itemize
 | 
			
		||||
@item
 | 
			
		||||
Seek to time 10, read packets until 20 seconds after the found seek
 | 
			
		||||
point, then seek to position @code{01:30} (1 minute and thirty
 | 
			
		||||
seconds) and read packets until position @code{01:45}.
 | 
			
		||||
@example
 | 
			
		||||
10%+20,01:30%01:45
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
Read only 42 packets after seeking to position @code{01:23}:
 | 
			
		||||
@example
 | 
			
		||||
01:23%+#42
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
Read only the first 20 seconds from the start:
 | 
			
		||||
@example
 | 
			
		||||
%+20
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
Read from the start until position @code{02:30}:
 | 
			
		||||
@example
 | 
			
		||||
%02:30
 | 
			
		||||
@end example
 | 
			
		||||
@end itemize
 | 
			
		||||
 | 
			
		||||
@item -show_private_data, -private
 | 
			
		||||
Show private data, that is data depending on the format of the
 | 
			
		||||
particular shown element.
 | 
			
		||||
@@ -322,12 +240,6 @@ Show information related to program and library versions. This is the
 | 
			
		||||
equivalent of setting both @option{-show_program_version} and
 | 
			
		||||
@option{-show_library_versions} options.
 | 
			
		||||
 | 
			
		||||
@item -show_pixel_formats
 | 
			
		||||
Show information about all pixel formats supported by FFmpeg.
 | 
			
		||||
 | 
			
		||||
Pixel format information for each format is printed within a section
 | 
			
		||||
with name "PIXEL_FORMAT".
 | 
			
		||||
 | 
			
		||||
@item -bitexact
 | 
			
		||||
Force bitexact output, useful to produce output which is not dependent
 | 
			
		||||
on the specific build.
 | 
			
		||||
@@ -348,39 +260,6 @@ A writer may accept one or more arguments, which specify the options
 | 
			
		||||
to adopt. The options are specified as a list of @var{key}=@var{value}
 | 
			
		||||
pairs, separated by ":".
 | 
			
		||||
 | 
			
		||||
All writers support the following options:
 | 
			
		||||
 | 
			
		||||
@table @option
 | 
			
		||||
@item string_validation, sv
 | 
			
		||||
Set string validation mode.
 | 
			
		||||
 | 
			
		||||
The following values are accepted.
 | 
			
		||||
@table @samp
 | 
			
		||||
@item fail
 | 
			
		||||
The writer will fail immediately in case an invalid string (UTF-8)
 | 
			
		||||
sequence or code point is found in the input. This is especially
 | 
			
		||||
useful to validate input metadata.
 | 
			
		||||
 | 
			
		||||
@item ignore
 | 
			
		||||
Any validation error will be ignored. This will result in possibly
 | 
			
		||||
broken output, especially with the json or xml writer.
 | 
			
		||||
 | 
			
		||||
@item replace
 | 
			
		||||
The writer will substitute invalid UTF-8 sequences or code points with
 | 
			
		||||
the string specified with the @option{string_validation_replacement}.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
Default value is @samp{replace}.
 | 
			
		||||
 | 
			
		||||
@item string_validation_replacement, svr
 | 
			
		||||
Set replacement string to use in case @option{string_validation} is
 | 
			
		||||
set to @samp{replace}.
 | 
			
		||||
 | 
			
		||||
In case the option is not specified, the writer will assume the empty
 | 
			
		||||
string, that is it will remove the invalid sequences from the input
 | 
			
		||||
strings.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
A description of the currently available writers follows.
 | 
			
		||||
 | 
			
		||||
@section default
 | 
			
		||||
@@ -395,8 +274,8 @@ keyN=valN
 | 
			
		||||
[/SECTION]
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
Metadata tags are printed as a line in the corresponding FORMAT, STREAM or
 | 
			
		||||
PROGRAM_STREAM section, and are prefixed by the string "TAG:".
 | 
			
		||||
Metadata tags are printed as a line in the corresponding FORMAT or
 | 
			
		||||
STREAM section, and are prefixed by the string "TAG:".
 | 
			
		||||
 | 
			
		||||
A description of the accepted options follows.
 | 
			
		||||
 | 
			
		||||
@@ -447,17 +326,17 @@ writer).
 | 
			
		||||
It can assume one of the following values:
 | 
			
		||||
@table @option
 | 
			
		||||
@item c
 | 
			
		||||
Perform C-like escaping. Strings containing a newline (@samp{\n}), carriage
 | 
			
		||||
return (@samp{\r}), a tab (@samp{\t}), a form feed (@samp{\f}), the escaping
 | 
			
		||||
character (@samp{\}) or the item separator character @var{SEP} are escaped
 | 
			
		||||
using C-like fashioned escaping, so that a newline is converted to the
 | 
			
		||||
sequence @samp{\n}, a carriage return to @samp{\r}, @samp{\} to @samp{\\} and
 | 
			
		||||
the separator @var{SEP} is converted to @samp{\@var{SEP}}.
 | 
			
		||||
Perform C-like escaping. Strings containing a newline ('\n'), carriage
 | 
			
		||||
return ('\r'), a tab ('\t'), a form feed ('\f'), the escaping
 | 
			
		||||
character ('\') or the item separator character @var{SEP} are escaped using C-like fashioned
 | 
			
		||||
escaping, so that a newline is converted to the sequence "\n", a
 | 
			
		||||
carriage return to "\r", '\' to "\\" and the separator @var{SEP} is
 | 
			
		||||
converted to "\@var{SEP}".
 | 
			
		||||
 | 
			
		||||
@item csv
 | 
			
		||||
Perform CSV-like escaping, as described in RFC4180.  Strings
 | 
			
		||||
containing a newline (@samp{\n}), a carriage return (@samp{\r}), a double quote
 | 
			
		||||
(@samp{"}), or @var{SEP} are enclosed in double-quotes.
 | 
			
		||||
containing a newline ('\n'), a carriage return ('\r'), a double quote
 | 
			
		||||
('"'), or @var{SEP} are enclosed in double-quotes.
 | 
			
		||||
 | 
			
		||||
@item none
 | 
			
		||||
Perform no escaping.
 | 
			
		||||
@@ -485,7 +364,7 @@ The description of the accepted options follows.
 | 
			
		||||
Separator character used to separate the chapter, the section name, IDs and
 | 
			
		||||
potential tags in the printed field key.
 | 
			
		||||
 | 
			
		||||
Default value is @samp{.}.
 | 
			
		||||
Default value is '.'.
 | 
			
		||||
 | 
			
		||||
@item hierarchical, h
 | 
			
		||||
Specify if the section name specification should be hierarchical. If
 | 
			
		||||
@@ -507,22 +386,21 @@ The following conventions are adopted:
 | 
			
		||||
@item
 | 
			
		||||
all key and values are UTF-8
 | 
			
		||||
@item
 | 
			
		||||
@samp{.} is the subgroup separator
 | 
			
		||||
'.' is the subgroup separator
 | 
			
		||||
@item
 | 
			
		||||
newline, @samp{\t}, @samp{\f}, @samp{\b} and the following characters are
 | 
			
		||||
escaped
 | 
			
		||||
newline, '\t', '\f', '\b' and the following characters are escaped
 | 
			
		||||
@item
 | 
			
		||||
@samp{\} is the escape character
 | 
			
		||||
'\' is the escape character
 | 
			
		||||
@item
 | 
			
		||||
@samp{#} is the comment indicator
 | 
			
		||||
'#' is the comment indicator
 | 
			
		||||
@item
 | 
			
		||||
@samp{=} is the key/value separator
 | 
			
		||||
'=' is the key/value separator
 | 
			
		||||
@item
 | 
			
		||||
@samp{:} is not used but usually parsed as key/value separator
 | 
			
		||||
':' is not used but usually parsed as key/value separator
 | 
			
		||||
@end itemize
 | 
			
		||||
 | 
			
		||||
This writer accepts options as a list of @var{key}=@var{value} pairs,
 | 
			
		||||
separated by @samp{:}.
 | 
			
		||||
separated by ":".
 | 
			
		||||
 | 
			
		||||
The description of the accepted options follows.
 | 
			
		||||
 | 
			
		||||
@@ -609,44 +487,10 @@ DV, GXF and AVI timecodes are available in format metadata
 | 
			
		||||
@end itemize
 | 
			
		||||
@c man end TIMECODE
 | 
			
		||||
 | 
			
		||||
@include config.texi
 | 
			
		||||
@ifset config-all
 | 
			
		||||
@set config-readonly
 | 
			
		||||
@ifset config-avutil
 | 
			
		||||
@include utils.texi
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-avcodec
 | 
			
		||||
@include codecs.texi
 | 
			
		||||
@include bitstream_filters.texi
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-avformat
 | 
			
		||||
@include formats.texi
 | 
			
		||||
@include protocols.texi
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-avdevice
 | 
			
		||||
@include devices.texi
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-swresample
 | 
			
		||||
@include resampler.texi
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-swscale
 | 
			
		||||
@include scaler.texi
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-avfilter
 | 
			
		||||
@include filters.texi
 | 
			
		||||
@end ifset
 | 
			
		||||
@end ifset
 | 
			
		||||
 | 
			
		||||
@chapter See Also
 | 
			
		||||
 | 
			
		||||
@ifhtml
 | 
			
		||||
@ifset config-all
 | 
			
		||||
@url{ffprobe.html,ffprobe},
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-not-all
 | 
			
		||||
@url{ffprobe-all.html,ffprobe-all},
 | 
			
		||||
@end ifset
 | 
			
		||||
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffserver.html,ffserver},
 | 
			
		||||
@url{ffplay.html,ffmpeg}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
 | 
			
		||||
@url{ffmpeg-utils.html,ffmpeg-utils},
 | 
			
		||||
@url{ffmpeg-scaler.html,ffmpeg-scaler},
 | 
			
		||||
@url{ffmpeg-resampler.html,ffmpeg-resampler},
 | 
			
		||||
@@ -659,12 +503,6 @@ DV, GXF and AVI timecodes are available in format metadata
 | 
			
		||||
@end ifhtml
 | 
			
		||||
 | 
			
		||||
@ifnothtml
 | 
			
		||||
@ifset config-all
 | 
			
		||||
ffprobe(1),
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-not-all
 | 
			
		||||
ffprobe-all(1),
 | 
			
		||||
@end ifset
 | 
			
		||||
ffmpeg(1), ffplay(1), ffserver(1),
 | 
			
		||||
ffmpeg-utils(1), ffmpeg-scaler(1), ffmpeg-resampler(1),
 | 
			
		||||
ffmpeg-codecs(1), ffmpeg-bitstream-filters(1), ffmpeg-formats(1),
 | 
			
		||||
 
 | 
			
		||||
							
								
								
									
										173
									
								
								doc/ffprobe.xsd
									
									
									
									
									
								
							
							
						
						
									
										173
									
								
								doc/ffprobe.xsd
									
									
									
									
									
								
							@@ -8,17 +8,13 @@
 | 
			
		||||
 | 
			
		||||
    <xsd:complexType name="ffprobeType">
 | 
			
		||||
        <xsd:sequence>
 | 
			
		||||
            <xsd:element name="program_version"  type="ffprobe:programVersionType"  minOccurs="0" maxOccurs="1" />
 | 
			
		||||
            <xsd:element name="library_versions" type="ffprobe:libraryVersionsType" minOccurs="0" maxOccurs="1" />
 | 
			
		||||
            <xsd:element name="pixel_formats"    type="ffprobe:pixelFormatsType"    minOccurs="0" maxOccurs="1" />
 | 
			
		||||
            <xsd:element name="packets"  type="ffprobe:packetsType" minOccurs="0" maxOccurs="1" />
 | 
			
		||||
            <xsd:element name="frames"   type="ffprobe:framesType"  minOccurs="0" maxOccurs="1" />
 | 
			
		||||
            <xsd:element name="packets_and_frames" type="ffprobe:packetsAndFramesType" minOccurs="0" maxOccurs="1" />
 | 
			
		||||
            <xsd:element name="programs" type="ffprobe:programsType" minOccurs="0" maxOccurs="1" />
 | 
			
		||||
            <xsd:element name="streams"  type="ffprobe:streamsType" minOccurs="0" maxOccurs="1" />
 | 
			
		||||
            <xsd:element name="chapters" type="ffprobe:chaptersType" minOccurs="0" maxOccurs="1" />
 | 
			
		||||
            <xsd:element name="format"   type="ffprobe:formatType"  minOccurs="0" maxOccurs="1" />
 | 
			
		||||
            <xsd:element name="error"    type="ffprobe:errorType"   minOccurs="0" maxOccurs="1" />
 | 
			
		||||
            <xsd:element name="program_version"  type="ffprobe:programVersionType"  minOccurs="0" maxOccurs="1" />
 | 
			
		||||
            <xsd:element name="library_versions" type="ffprobe:libraryVersionsType" minOccurs="0" maxOccurs="1" />
 | 
			
		||||
        </xsd:sequence>
 | 
			
		||||
    </xsd:complexType>
 | 
			
		||||
 | 
			
		||||
@@ -30,29 +26,11 @@
 | 
			
		||||
 | 
			
		||||
    <xsd:complexType name="framesType">
 | 
			
		||||
        <xsd:sequence>
 | 
			
		||||
            <xsd:choice minOccurs="0" maxOccurs="unbounded">
 | 
			
		||||
            <xsd:element name="frame" type="ffprobe:frameType" minOccurs="0" maxOccurs="unbounded"/>
 | 
			
		||||
                <xsd:element name="subtitle" type="ffprobe:subtitleType" minOccurs="0" maxOccurs="unbounded"/>
 | 
			
		||||
            </xsd:choice>
 | 
			
		||||
        </xsd:sequence>
 | 
			
		||||
    </xsd:complexType>
 | 
			
		||||
 | 
			
		||||
    <xsd:complexType name="packetsAndFramesType">
 | 
			
		||||
        <xsd:sequence>
 | 
			
		||||
            <xsd:choice minOccurs="0" maxOccurs="unbounded">
 | 
			
		||||
                <xsd:element name="packet" type="ffprobe:packetType" minOccurs="0" maxOccurs="unbounded"/>
 | 
			
		||||
                <xsd:element name="frame" type="ffprobe:frameType" minOccurs="0" maxOccurs="unbounded"/>
 | 
			
		||||
                <xsd:element name="subtitle" type="ffprobe:subtitleType" minOccurs="0" maxOccurs="unbounded"/>
 | 
			
		||||
            </xsd:choice>
 | 
			
		||||
        </xsd:sequence>
 | 
			
		||||
    </xsd:complexType>
 | 
			
		||||
 | 
			
		||||
    <xsd:complexType name="packetType">
 | 
			
		||||
      <xsd:sequence>
 | 
			
		||||
        <xsd:element name="tag" type="ffprobe:tagType" minOccurs="0" maxOccurs="unbounded"/>
 | 
			
		||||
        <xsd:element name="side_data_list" type="ffprobe:packetSideDataListType"   minOccurs="0" maxOccurs="1" />
 | 
			
		||||
      </xsd:sequence>
 | 
			
		||||
 | 
			
		||||
      <xsd:attribute name="codec_type"    type="xsd:string" use="required" />
 | 
			
		||||
      <xsd:attribute name="stream_index"  type="xsd:int" use="required" />
 | 
			
		||||
      <xsd:attribute name="pts"           type="xsd:long"  />
 | 
			
		||||
@@ -67,27 +45,10 @@
 | 
			
		||||
      <xsd:attribute name="pos"           type="xsd:long"  />
 | 
			
		||||
      <xsd:attribute name="flags"         type="xsd:string" use="required" />
 | 
			
		||||
      <xsd:attribute name="data"          type="xsd:string" />
 | 
			
		||||
      <xsd:attribute name="data_hash"     type="xsd:string" />
 | 
			
		||||
    </xsd:complexType>
 | 
			
		||||
 | 
			
		||||
    <xsd:complexType name="packetSideDataListType">
 | 
			
		||||
        <xsd:sequence>
 | 
			
		||||
            <xsd:element name="side_data" type="ffprobe:packetSideDataType" minOccurs="1" maxOccurs="unbounded"/>
 | 
			
		||||
        </xsd:sequence>
 | 
			
		||||
    </xsd:complexType>
 | 
			
		||||
    <xsd:complexType name="packetSideDataType">
 | 
			
		||||
        <xsd:attribute name="side_data_type"              type="xsd:string"/>
 | 
			
		||||
        <xsd:attribute name="side_data_size"              type="xsd:int"   />
 | 
			
		||||
    </xsd:complexType>
 | 
			
		||||
 | 
			
		||||
    <xsd:complexType name="frameType">
 | 
			
		||||
      <xsd:sequence>
 | 
			
		||||
            <xsd:element name="tag" type="ffprobe:tagType" minOccurs="0" maxOccurs="unbounded"/>
 | 
			
		||||
            <xsd:element name="side_data_list" type="ffprobe:frameSideDataListType"   minOccurs="0" maxOccurs="1" />
 | 
			
		||||
      </xsd:sequence>
 | 
			
		||||
 | 
			
		||||
      <xsd:attribute name="media_type"    type="xsd:string" use="required"/>
 | 
			
		||||
      <xsd:attribute name="stream_index"  type="xsd:int"  />
 | 
			
		||||
      <xsd:attribute name="key_frame"     type="xsd:int"    use="required"/>
 | 
			
		||||
      <xsd:attribute name="pts"           type="xsd:long" />
 | 
			
		||||
      <xsd:attribute name="pts_time"      type="xsd:float"/>
 | 
			
		||||
@@ -95,8 +56,6 @@
 | 
			
		||||
      <xsd:attribute name="pkt_pts_time"  type="xsd:float"/>
 | 
			
		||||
      <xsd:attribute name="pkt_dts"       type="xsd:long" />
 | 
			
		||||
      <xsd:attribute name="pkt_dts_time"  type="xsd:float"/>
 | 
			
		||||
      <xsd:attribute name="best_effort_timestamp"      type="xsd:long" />
 | 
			
		||||
      <xsd:attribute name="best_effort_timestamp_time" type="xsd:float" />
 | 
			
		||||
      <xsd:attribute name="pkt_duration"  type="xsd:long" />
 | 
			
		||||
      <xsd:attribute name="pkt_duration_time" type="xsd:float"/>
 | 
			
		||||
      <xsd:attribute name="pkt_pos"       type="xsd:long" />
 | 
			
		||||
@@ -119,26 +78,7 @@
 | 
			
		||||
      <xsd:attribute name="interlaced_frame"       type="xsd:int"   />
 | 
			
		||||
      <xsd:attribute name="top_field_first"        type="xsd:int"   />
 | 
			
		||||
      <xsd:attribute name="repeat_pict"            type="xsd:int"   />
 | 
			
		||||
    </xsd:complexType>
 | 
			
		||||
 | 
			
		||||
    <xsd:complexType name="frameSideDataListType">
 | 
			
		||||
        <xsd:sequence>
 | 
			
		||||
            <xsd:element name="side_data" type="ffprobe:frameSideDataType" minOccurs="1" maxOccurs="unbounded"/>
 | 
			
		||||
        </xsd:sequence>
 | 
			
		||||
    </xsd:complexType>
 | 
			
		||||
    <xsd:complexType name="frameSideDataType">
 | 
			
		||||
        <xsd:attribute name="side_data_type"              type="xsd:string"/>
 | 
			
		||||
        <xsd:attribute name="side_data_size"              type="xsd:int"   />
 | 
			
		||||
    </xsd:complexType>
 | 
			
		||||
 | 
			
		||||
    <xsd:complexType name="subtitleType">
 | 
			
		||||
      <xsd:attribute name="media_type"         type="xsd:string" fixed="subtitle" use="required"/>
 | 
			
		||||
      <xsd:attribute name="pts"                type="xsd:long" />
 | 
			
		||||
      <xsd:attribute name="pts_time"           type="xsd:float"/>
 | 
			
		||||
      <xsd:attribute name="format"             type="xsd:int"  />
 | 
			
		||||
      <xsd:attribute name="start_display_time" type="xsd:int"  />
 | 
			
		||||
      <xsd:attribute name="end_display_time"   type="xsd:int"  />
 | 
			
		||||
      <xsd:attribute name="num_rects"          type="xsd:int"  />
 | 
			
		||||
      <xsd:attribute name="reference"              type="xsd:int"   />
 | 
			
		||||
    </xsd:complexType>
 | 
			
		||||
 | 
			
		||||
    <xsd:complexType name="streamsType">
 | 
			
		||||
@@ -147,12 +87,6 @@
 | 
			
		||||
        </xsd:sequence>
 | 
			
		||||
    </xsd:complexType>
 | 
			
		||||
 | 
			
		||||
    <xsd:complexType name="programsType">
 | 
			
		||||
        <xsd:sequence>
 | 
			
		||||
            <xsd:element name="program" type="ffprobe:programType" minOccurs="0" maxOccurs="unbounded"/>
 | 
			
		||||
        </xsd:sequence>
 | 
			
		||||
    </xsd:complexType>
 | 
			
		||||
 | 
			
		||||
    <xsd:complexType name="streamDispositionType">
 | 
			
		||||
      <xsd:attribute name="default"          type="xsd:int" use="required" />
 | 
			
		||||
      <xsd:attribute name="dub"              type="xsd:int" use="required" />
 | 
			
		||||
@@ -169,9 +103,8 @@
 | 
			
		||||
 | 
			
		||||
    <xsd:complexType name="streamType">
 | 
			
		||||
      <xsd:sequence>
 | 
			
		||||
        <xsd:element name="disposition" type="ffprobe:streamDispositionType" minOccurs="0" maxOccurs="1"/>
 | 
			
		||||
        <xsd:element name="tag" type="ffprobe:tagType" minOccurs="0" maxOccurs="unbounded"/>
 | 
			
		||||
        <xsd:element name="side_data_list" type="ffprobe:packetSideDataListType"   minOccurs="0" maxOccurs="1" />
 | 
			
		||||
        <xsd:element name="disposition" type="ffprobe:streamDispositionType" minOccurs="0" maxOccurs="1"/>
 | 
			
		||||
      </xsd:sequence>
 | 
			
		||||
 | 
			
		||||
      <xsd:attribute name="index"            type="xsd:int" use="required"/>
 | 
			
		||||
@@ -183,31 +116,21 @@
 | 
			
		||||
      <xsd:attribute name="codec_tag"        type="xsd:string" use="required"/>
 | 
			
		||||
      <xsd:attribute name="codec_tag_string" type="xsd:string" use="required"/>
 | 
			
		||||
      <xsd:attribute name="extradata"        type="xsd:string" />
 | 
			
		||||
      <xsd:attribute name="extradata_hash"   type="xsd:string" />
 | 
			
		||||
 | 
			
		||||
      <!-- video attributes -->
 | 
			
		||||
      <xsd:attribute name="width"                type="xsd:int"/>
 | 
			
		||||
      <xsd:attribute name="height"               type="xsd:int"/>
 | 
			
		||||
      <xsd:attribute name="coded_width"          type="xsd:int"/>
 | 
			
		||||
      <xsd:attribute name="coded_height"         type="xsd:int"/>
 | 
			
		||||
      <xsd:attribute name="has_b_frames"         type="xsd:int"/>
 | 
			
		||||
      <xsd:attribute name="sample_aspect_ratio"  type="xsd:string"/>
 | 
			
		||||
      <xsd:attribute name="display_aspect_ratio" type="xsd:string"/>
 | 
			
		||||
      <xsd:attribute name="pix_fmt"              type="xsd:string"/>
 | 
			
		||||
      <xsd:attribute name="level"                type="xsd:int"/>
 | 
			
		||||
      <xsd:attribute name="color_range"          type="xsd:string"/>
 | 
			
		||||
      <xsd:attribute name="color_space"          type="xsd:string"/>
 | 
			
		||||
      <xsd:attribute name="color_transfer"       type="xsd:string"/>
 | 
			
		||||
      <xsd:attribute name="color_primaries"      type="xsd:string"/>
 | 
			
		||||
      <xsd:attribute name="chroma_location"      type="xsd:string"/>
 | 
			
		||||
      <xsd:attribute name="timecode"             type="xsd:string"/>
 | 
			
		||||
      <xsd:attribute name="refs"                 type="xsd:int"/>
 | 
			
		||||
 | 
			
		||||
      <!-- audio attributes -->
 | 
			
		||||
      <xsd:attribute name="sample_fmt"       type="xsd:string"/>
 | 
			
		||||
      <xsd:attribute name="sample_rate"      type="xsd:int"/>
 | 
			
		||||
      <xsd:attribute name="channels"         type="xsd:int"/>
 | 
			
		||||
      <xsd:attribute name="channel_layout"   type="xsd:string"/>
 | 
			
		||||
      <xsd:attribute name="bits_per_sample"  type="xsd:int"/>
 | 
			
		||||
 | 
			
		||||
      <xsd:attribute name="id"               type="xsd:string"/>
 | 
			
		||||
@@ -219,30 +142,11 @@
 | 
			
		||||
      <xsd:attribute name="duration_ts"      type="xsd:long"/>
 | 
			
		||||
      <xsd:attribute name="duration"         type="xsd:float"/>
 | 
			
		||||
      <xsd:attribute name="bit_rate"         type="xsd:int"/>
 | 
			
		||||
      <xsd:attribute name="max_bit_rate"     type="xsd:int"/>
 | 
			
		||||
      <xsd:attribute name="bits_per_raw_sample" type="xsd:int"/>
 | 
			
		||||
      <xsd:attribute name="nb_frames"        type="xsd:int"/>
 | 
			
		||||
      <xsd:attribute name="nb_read_frames"   type="xsd:int"/>
 | 
			
		||||
      <xsd:attribute name="nb_read_packets"  type="xsd:int"/>
 | 
			
		||||
    </xsd:complexType>
 | 
			
		||||
 | 
			
		||||
    <xsd:complexType name="programType">
 | 
			
		||||
      <xsd:sequence>
 | 
			
		||||
        <xsd:element name="tag" type="ffprobe:tagType" minOccurs="0" maxOccurs="unbounded"/>
 | 
			
		||||
        <xsd:element name="streams" type="ffprobe:streamsType" minOccurs="0" maxOccurs="1"/>
 | 
			
		||||
      </xsd:sequence>
 | 
			
		||||
 | 
			
		||||
      <xsd:attribute name="program_id"           type="xsd:int"    use="required"/>
 | 
			
		||||
      <xsd:attribute name="program_num"          type="xsd:int"    use="required"/>
 | 
			
		||||
      <xsd:attribute name="nb_streams"           type="xsd:int"    use="required"/>
 | 
			
		||||
      <xsd:attribute name="start_time"           type="xsd:float"/>
 | 
			
		||||
      <xsd:attribute name="start_pts"            type="xsd:long"/>
 | 
			
		||||
      <xsd:attribute name="end_time"             type="xsd:float"/>
 | 
			
		||||
      <xsd:attribute name="end_pts"              type="xsd:long"/>
 | 
			
		||||
      <xsd:attribute name="pmt_pid"              type="xsd:int"    use="required"/>
 | 
			
		||||
      <xsd:attribute name="pcr_pid"              type="xsd:int"    use="required"/>
 | 
			
		||||
    </xsd:complexType>
 | 
			
		||||
 | 
			
		||||
    <xsd:complexType name="formatType">
 | 
			
		||||
      <xsd:sequence>
 | 
			
		||||
        <xsd:element name="tag" type="ffprobe:tagType" minOccurs="0" maxOccurs="unbounded"/>
 | 
			
		||||
@@ -250,14 +154,12 @@
 | 
			
		||||
 | 
			
		||||
      <xsd:attribute name="filename"         type="xsd:string" use="required"/>
 | 
			
		||||
      <xsd:attribute name="nb_streams"       type="xsd:int"    use="required"/>
 | 
			
		||||
      <xsd:attribute name="nb_programs"      type="xsd:int"    use="required"/>
 | 
			
		||||
      <xsd:attribute name="format_name"      type="xsd:string" use="required"/>
 | 
			
		||||
      <xsd:attribute name="format_long_name" type="xsd:string"/>
 | 
			
		||||
      <xsd:attribute name="start_time"       type="xsd:float"/>
 | 
			
		||||
      <xsd:attribute name="duration"         type="xsd:float"/>
 | 
			
		||||
      <xsd:attribute name="size"             type="xsd:long"/>
 | 
			
		||||
      <xsd:attribute name="bit_rate"         type="xsd:long"/>
 | 
			
		||||
      <xsd:attribute name="probe_score"      type="xsd:int"/>
 | 
			
		||||
    </xsd:complexType>
 | 
			
		||||
 | 
			
		||||
    <xsd:complexType name="tagType">
 | 
			
		||||
@@ -273,31 +175,13 @@
 | 
			
		||||
    <xsd:complexType name="programVersionType">
 | 
			
		||||
      <xsd:attribute name="version"          type="xsd:string" use="required"/>
 | 
			
		||||
      <xsd:attribute name="copyright"        type="xsd:string" use="required"/>
 | 
			
		||||
      <xsd:attribute name="build_date"       type="xsd:string"/>
 | 
			
		||||
      <xsd:attribute name="build_time"       type="xsd:string"/>
 | 
			
		||||
      <xsd:attribute name="compiler_ident"   type="xsd:string" use="required"/>
 | 
			
		||||
      <xsd:attribute name="build_date"       type="xsd:string" use="required"/>
 | 
			
		||||
      <xsd:attribute name="build_time"       type="xsd:string" use="required"/>
 | 
			
		||||
      <xsd:attribute name="compiler_type"    type="xsd:string" use="required"/>
 | 
			
		||||
      <xsd:attribute name="compiler_version" type="xsd:string" use="required"/>
 | 
			
		||||
      <xsd:attribute name="configuration"    type="xsd:string" use="required"/>
 | 
			
		||||
    </xsd:complexType>
 | 
			
		||||
 | 
			
		||||
    <xsd:complexType name="chaptersType">
 | 
			
		||||
      <xsd:sequence>
 | 
			
		||||
        <xsd:element name="chapter" type="ffprobe:chapterType" minOccurs="0" maxOccurs="unbounded"/>
 | 
			
		||||
      </xsd:sequence>
 | 
			
		||||
    </xsd:complexType>
 | 
			
		||||
 | 
			
		||||
    <xsd:complexType name="chapterType">
 | 
			
		||||
      <xsd:sequence>
 | 
			
		||||
        <xsd:element name="tag" type="ffprobe:tagType" minOccurs="0" maxOccurs="unbounded"/>
 | 
			
		||||
      </xsd:sequence>
 | 
			
		||||
 | 
			
		||||
      <xsd:attribute name="id"         type="xsd:int" use="required"/>
 | 
			
		||||
      <xsd:attribute name="time_base"  type="xsd:string" use="required"/>
 | 
			
		||||
      <xsd:attribute name="start"      type="xsd:int" use="required"/>
 | 
			
		||||
      <xsd:attribute name="start_time" type="xsd:float"/>
 | 
			
		||||
      <xsd:attribute name="end"        type="xsd:int" use="required"/>
 | 
			
		||||
      <xsd:attribute name="end_time"   type="xsd:float" use="required"/>
 | 
			
		||||
    </xsd:complexType>
 | 
			
		||||
 | 
			
		||||
    <xsd:complexType name="libraryVersionType">
 | 
			
		||||
      <xsd:attribute name="name"        type="xsd:string" use="required"/>
 | 
			
		||||
      <xsd:attribute name="major"       type="xsd:int"    use="required"/>
 | 
			
		||||
@@ -312,45 +196,4 @@
 | 
			
		||||
          <xsd:element name="library_version" type="ffprobe:libraryVersionType" minOccurs="0" maxOccurs="unbounded"/>
 | 
			
		||||
        </xsd:sequence>
 | 
			
		||||
    </xsd:complexType>
 | 
			
		||||
 | 
			
		||||
    <xsd:complexType name="pixelFormatFlagsType">
 | 
			
		||||
      <xsd:attribute name="big_endian" type="xsd:int" use="required"/>
 | 
			
		||||
      <xsd:attribute name="palette"    type="xsd:int" use="required"/>
 | 
			
		||||
      <xsd:attribute name="bitstream"  type="xsd:int" use="required"/>
 | 
			
		||||
      <xsd:attribute name="hwaccel"    type="xsd:int" use="required"/>
 | 
			
		||||
      <xsd:attribute name="planar"     type="xsd:int" use="required"/>
 | 
			
		||||
      <xsd:attribute name="rgb"        type="xsd:int" use="required"/>
 | 
			
		||||
      <xsd:attribute name="pseudopal"  type="xsd:int" use="required"/>
 | 
			
		||||
      <xsd:attribute name="alpha"      type="xsd:int" use="required"/>
 | 
			
		||||
    </xsd:complexType>
 | 
			
		||||
 | 
			
		||||
    <xsd:complexType name="pixelFormatComponentType">
 | 
			
		||||
      <xsd:attribute name="index"      type="xsd:int" use="required"/>
 | 
			
		||||
      <xsd:attribute name="bit_depth"  type="xsd:int" use="required"/>
 | 
			
		||||
    </xsd:complexType>
 | 
			
		||||
 | 
			
		||||
    <xsd:complexType name="pixelFormatComponentsType">
 | 
			
		||||
      <xsd:sequence>
 | 
			
		||||
        <xsd:element name="component" type="ffprobe:pixelFormatComponentType" minOccurs="0" maxOccurs="unbounded"/>
 | 
			
		||||
      </xsd:sequence>
 | 
			
		||||
    </xsd:complexType>
 | 
			
		||||
 | 
			
		||||
    <xsd:complexType name="pixelFormatType">
 | 
			
		||||
      <xsd:sequence>
 | 
			
		||||
        <xsd:element name="flags" type="ffprobe:pixelFormatFlagsType" minOccurs="0" maxOccurs="1"/>
 | 
			
		||||
        <xsd:element name="components" type="ffprobe:pixelFormatComponentsType" minOccurs="0" maxOccurs="1"/>
 | 
			
		||||
      </xsd:sequence>
 | 
			
		||||
 | 
			
		||||
      <xsd:attribute name="name"                type="xsd:string" use="required"/>
 | 
			
		||||
      <xsd:attribute name="nb_components"       type="xsd:int"    use="required"/>
 | 
			
		||||
      <xsd:attribute name="log2_chroma_w"       type="xsd:int"/>
 | 
			
		||||
      <xsd:attribute name="log2_chroma_h"       type="xsd:int"/>
 | 
			
		||||
      <xsd:attribute name="bits_per_pixel"      type="xsd:int"/>
 | 
			
		||||
    </xsd:complexType>
 | 
			
		||||
 | 
			
		||||
    <xsd:complexType name="pixelFormatsType">
 | 
			
		||||
      <xsd:sequence>
 | 
			
		||||
        <xsd:element name="pixel_format" type="ffprobe:pixelFormatType" minOccurs="0" maxOccurs="unbounded"/>
 | 
			
		||||
      </xsd:sequence>
 | 
			
		||||
    </xsd:complexType>
 | 
			
		||||
</xsd:schema>
 | 
			
		||||
 
 | 
			
		||||
@@ -1,11 +1,11 @@
 | 
			
		||||
# Port on which the server is listening. You must select a different
 | 
			
		||||
# port from your standard HTTP web server if it is running on the same
 | 
			
		||||
# computer.
 | 
			
		||||
HTTPPort 8090
 | 
			
		||||
Port 8090
 | 
			
		||||
 | 
			
		||||
# Address on which the server is bound. Only useful if you have
 | 
			
		||||
# several network interfaces.
 | 
			
		||||
HTTPBindAddress 0.0.0.0
 | 
			
		||||
BindAddress 0.0.0.0
 | 
			
		||||
 | 
			
		||||
# Number of simultaneous HTTP connections that can be handled. It has
 | 
			
		||||
# to be defined *before* the MaxClients parameter, since it defines the
 | 
			
		||||
@@ -82,7 +82,6 @@ Feed feed1.ffm
 | 
			
		||||
# ra         : RealNetworks-compatible stream. Audio only.
 | 
			
		||||
# mpjpeg     : Multipart JPEG (works with Netscape without any plugin)
 | 
			
		||||
# jpeg       : Generate a single JPEG image.
 | 
			
		||||
# mjpeg      : Generate a M-JPEG stream.
 | 
			
		||||
# asf        : ASF compatible streaming (Windows Media Player format).
 | 
			
		||||
# swf        : Macromedia Flash compatible stream
 | 
			
		||||
# avi        : AVI format (MPEG-4 video, MPEG audio sound)
 | 
			
		||||
@@ -236,7 +235,7 @@ StartSendOnKey
 | 
			
		||||
 | 
			
		||||
#<Stream test.ogg>
 | 
			
		||||
#Feed feed1.ffm
 | 
			
		||||
#Metadata title "Stream title"
 | 
			
		||||
#Title "Stream title"
 | 
			
		||||
#AudioBitRate 64
 | 
			
		||||
#AudioChannels 2
 | 
			
		||||
#AudioSampleRate 44100
 | 
			
		||||
@@ -281,10 +280,10 @@ StartSendOnKey
 | 
			
		||||
#<Stream file.asf>
 | 
			
		||||
#File "/usr/local/httpd/htdocs/test.asf"
 | 
			
		||||
#NoAudio
 | 
			
		||||
#Metadata author "Me"
 | 
			
		||||
#Metadata copyright "Super MegaCorp"
 | 
			
		||||
#Metadata title "Test stream from disk"
 | 
			
		||||
#Metadata comment "Test comment"
 | 
			
		||||
#Author "Me"
 | 
			
		||||
#Copyright "Super MegaCorp"
 | 
			
		||||
#Title "Test stream from disk"
 | 
			
		||||
#Comment "Test comment"
 | 
			
		||||
#</Stream>
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
 
 | 
			
		||||
@@ -1,5 +1,4 @@
 | 
			
		||||
\input texinfo @c -*- texinfo -*-
 | 
			
		||||
@documentencoding UTF-8
 | 
			
		||||
 | 
			
		||||
@settitle ffserver Documentation
 | 
			
		||||
@titlepage
 | 
			
		||||
@@ -17,14 +16,11 @@ ffserver [@var{options}]
 | 
			
		||||
@chapter Description
 | 
			
		||||
@c man begin DESCRIPTION
 | 
			
		||||
 | 
			
		||||
@command{ffserver} is a streaming server for both audio and video.
 | 
			
		||||
It supports several live feeds, streaming from files and time shifting
 | 
			
		||||
on live feeds. You can seek to positions in the past on each live
 | 
			
		||||
feed, provided you specify a big enough feed storage.
 | 
			
		||||
 | 
			
		||||
@command{ffserver} is configured through a configuration file, which
 | 
			
		||||
is read at startup. If not explicitly specified, it will read from
 | 
			
		||||
@file{/etc/ffserver.conf}.
 | 
			
		||||
@command{ffserver} is a streaming server for both audio and video. It
 | 
			
		||||
supports several live feeds, streaming from files and time shifting on
 | 
			
		||||
live feeds (you can seek to positions in the past on each live feed,
 | 
			
		||||
provided you specify a big enough feed storage in
 | 
			
		||||
@file{ffserver.conf}).
 | 
			
		||||
 | 
			
		||||
@command{ffserver} receives prerecorded files or FFM streams from some
 | 
			
		||||
@command{ffmpeg} instance as input, then streams them over
 | 
			
		||||
@@ -43,128 +39,10 @@ For each feed you can have different output streams in various
 | 
			
		||||
formats, each one specified by a @code{<Stream>} section in the
 | 
			
		||||
configuration file.
 | 
			
		||||
 | 
			
		||||
@chapter Detailed description
 | 
			
		||||
 | 
			
		||||
@command{ffserver} works by forwarding streams encoded by
 | 
			
		||||
@command{ffmpeg}, or pre-recorded streams which are read from disk.
 | 
			
		||||
 | 
			
		||||
Precisely, @command{ffserver} acts as an HTTP server, accepting POST
 | 
			
		||||
requests from @command{ffmpeg} to acquire the stream to publish, and
 | 
			
		||||
serving RTSP clients or HTTP clients GET requests with the stream
 | 
			
		||||
media content.
 | 
			
		||||
 | 
			
		||||
A feed is an @ref{FFM} stream created by @command{ffmpeg}, and sent to
 | 
			
		||||
a port where @command{ffserver} is listening.
 | 
			
		||||
 | 
			
		||||
Each feed is identified by a unique name, corresponding to the name
 | 
			
		||||
of the resource published on @command{ffserver}, and is configured by
 | 
			
		||||
a dedicated @code{Feed} section in the configuration file.
 | 
			
		||||
 | 
			
		||||
The feed publish URL is given by:
 | 
			
		||||
@example
 | 
			
		||||
http://@var{ffserver_ip_address}:@var{http_port}/@var{feed_name}
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
where @var{ffserver_ip_address} is the IP address of the machine where
 | 
			
		||||
@command{ffserver} is installed, @var{http_port} is the port number of
 | 
			
		||||
the HTTP server (configured through the @option{HTTPPort} option), and
 | 
			
		||||
@var{feed_name} is the name of the corresponding feed defined in the
 | 
			
		||||
configuration file.
 | 
			
		||||
 | 
			
		||||
Each feed is associated to a file which is stored on disk. This stored
 | 
			
		||||
file is used to send pre-recorded data to a player as fast as
 | 
			
		||||
possible when new content is added in real-time to the stream.
 | 
			
		||||
 | 
			
		||||
A "live-stream" or "stream" is a resource published by
 | 
			
		||||
@command{ffserver}, and made accessible through the HTTP protocol to
 | 
			
		||||
clients.
 | 
			
		||||
 | 
			
		||||
A stream can be connected to a feed, or to a file. In the first case,
 | 
			
		||||
the published stream is forwarded from the corresponding feed
 | 
			
		||||
generated by a running instance of @command{ffmpeg}, in the second
 | 
			
		||||
case the stream is read from a pre-recorded file.
 | 
			
		||||
 | 
			
		||||
Each stream is identified by a unique name, corresponding to the name
 | 
			
		||||
of the resource served by @command{ffserver}, and is configured by
 | 
			
		||||
a dedicated @code{Stream} section in the configuration file.
 | 
			
		||||
 | 
			
		||||
The stream access HTTP URL is given by:
 | 
			
		||||
@example
 | 
			
		||||
http://@var{ffserver_ip_address}:@var{http_port}/@var{stream_name}[@var{options}]
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
The stream access RTSP URL is given by:
 | 
			
		||||
@example
 | 
			
		||||
http://@var{ffserver_ip_address}:@var{rtsp_port}/@var{stream_name}[@var{options}]
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@var{stream_name} is the name of the corresponding stream defined in
 | 
			
		||||
the configuration file. @var{options} is a list of options specified
 | 
			
		||||
after the URL which affects how the stream is served by
 | 
			
		||||
@command{ffserver}. @var{http_port} and @var{rtsp_port} are the HTTP
 | 
			
		||||
and RTSP ports configured with the options @var{HTTPPort} and
 | 
			
		||||
@var{RTSPPort} respectively.
 | 
			
		||||
 | 
			
		||||
In case the stream is associated to a feed, the encoding parameters
 | 
			
		||||
must be configured in the stream configuration. They are sent to
 | 
			
		||||
@command{ffmpeg} when setting up the encoding. This allows
 | 
			
		||||
@command{ffserver} to define the encoding parameters used by
 | 
			
		||||
the @command{ffmpeg} encoders.
 | 
			
		||||
 | 
			
		||||
The @command{ffmpeg} @option{override_ffserver} commandline option
 | 
			
		||||
allows one to override the encoding parameters set by the server.
 | 
			
		||||
 | 
			
		||||
Multiple streams can be connected to the same feed.
 | 
			
		||||
 | 
			
		||||
For example, you can have a situation described by the following
 | 
			
		||||
graph:
 | 
			
		||||
 | 
			
		||||
@verbatim
 | 
			
		||||
               _________       __________
 | 
			
		||||
              |         |     |          |
 | 
			
		||||
ffmpeg 1 -----| feed 1  |-----| stream 1 |
 | 
			
		||||
    \         |_________|\    |__________|
 | 
			
		||||
     \                    \
 | 
			
		||||
      \                    \   __________
 | 
			
		||||
       \                    \ |          |
 | 
			
		||||
        \                    \| stream 2 |
 | 
			
		||||
         \                    |__________|
 | 
			
		||||
          \
 | 
			
		||||
           \   _________       __________
 | 
			
		||||
            \ |         |     |          |
 | 
			
		||||
             \| feed 2  |-----| stream 3 |
 | 
			
		||||
              |_________|     |__________|
 | 
			
		||||
 | 
			
		||||
               _________       __________
 | 
			
		||||
              |         |     |          |
 | 
			
		||||
ffmpeg 2 -----| feed 3  |-----| stream 4 |
 | 
			
		||||
              |_________|     |__________|
 | 
			
		||||
 | 
			
		||||
               _________       __________
 | 
			
		||||
              |         |     |          |
 | 
			
		||||
              | file 1  |-----| stream 5 |
 | 
			
		||||
              |_________|     |__________|
 | 
			
		||||
 | 
			
		||||
@end verbatim
 | 
			
		||||
 | 
			
		||||
@anchor{FFM}
 | 
			
		||||
@section FFM, FFM2 formats
 | 
			
		||||
 | 
			
		||||
FFM and FFM2 are formats used by ffserver. They allow storing a wide variety of
 | 
			
		||||
video and audio streams and encoding options, and can store a moving time segment
 | 
			
		||||
of an infinite movie or a whole movie.
 | 
			
		||||
 | 
			
		||||
FFM is version specific, and there is limited compatibility of FFM files
 | 
			
		||||
generated by one version of ffmpeg/ffserver and another version of
 | 
			
		||||
ffmpeg/ffserver. It may work but it is not guaranteed to work.
 | 
			
		||||
 | 
			
		||||
FFM2 is extensible while maintaining compatibility and should work between
 | 
			
		||||
differing versions of tools. FFM2 is the default.
 | 
			
		||||
 | 
			
		||||
@section Status stream
 | 
			
		||||
 | 
			
		||||
@command{ffserver} supports an HTTP interface which exposes the
 | 
			
		||||
current status of the server.
 | 
			
		||||
ffserver supports an HTTP interface which exposes the current status
 | 
			
		||||
of the server.
 | 
			
		||||
 | 
			
		||||
Simply point your browser to the address of the special status stream
 | 
			
		||||
specified in the configuration file.
 | 
			
		||||
@@ -183,8 +61,27 @@ ACL allow 192.168.0.0 192.168.255.255
 | 
			
		||||
then the server will post a page with the status information when
 | 
			
		||||
the special stream @file{status.html} is requested.
 | 
			
		||||
 | 
			
		||||
@section What can this do?
 | 
			
		||||
 | 
			
		||||
When properly configured and running, you can capture video and audio in real
 | 
			
		||||
time from a suitable capture card, and stream it out over the Internet to
 | 
			
		||||
either Windows Media Player or RealAudio player (with some restrictions).
 | 
			
		||||
 | 
			
		||||
It can also stream from files, though that is currently broken. Very often, a
 | 
			
		||||
web server can be used to serve up the files just as well.
 | 
			
		||||
 | 
			
		||||
It can stream prerecorded video from .ffm files, though it is somewhat tricky
 | 
			
		||||
to make it work correctly.
 | 
			
		||||
 | 
			
		||||
@section How do I make it work?
 | 
			
		||||
 | 
			
		||||
First, build the kit. It *really* helps to have installed LAME first. Then when
 | 
			
		||||
you run the ffserver ./configure, make sure that you have the
 | 
			
		||||
@code{--enable-libmp3lame} flag turned on.
 | 
			
		||||
 | 
			
		||||
LAME is important as it allows for streaming audio to Windows Media Player.
 | 
			
		||||
Don't ask why the other audio types do not work.
 | 
			
		||||
 | 
			
		||||
As a simple test, just run the following two command lines where INPUTFILE
 | 
			
		||||
is some file which you can decode with ffmpeg:
 | 
			
		||||
 | 
			
		||||
@@ -206,9 +103,40 @@ WARNING: trying to stream test1.mpg doesn't work with WMP as it tries to
 | 
			
		||||
transfer the entire file before starting to play.
 | 
			
		||||
The same is true of AVI files.
 | 
			
		||||
 | 
			
		||||
You should edit the @file{ffserver.conf} file to suit your needs (in
 | 
			
		||||
terms of frame rates etc). Then install @command{ffserver} and
 | 
			
		||||
@command{ffmpeg}, write a script to start them up, and off you go.
 | 
			
		||||
@section What happens next?
 | 
			
		||||
 | 
			
		||||
You should edit the ffserver.conf file to suit your needs (in terms of
 | 
			
		||||
frame rates etc). Then install ffserver and ffmpeg, write a script to start
 | 
			
		||||
them up, and off you go.
 | 
			
		||||
 | 
			
		||||
@section Troubleshooting
 | 
			
		||||
 | 
			
		||||
@subsection I don't hear any audio, but video is fine.
 | 
			
		||||
 | 
			
		||||
Maybe you didn't install LAME, or got your ./configure statement wrong. Check
 | 
			
		||||
the ffmpeg output to see if a line referring to MP3 is present. If not, then
 | 
			
		||||
your configuration was incorrect. If it is, then maybe your wiring is not
 | 
			
		||||
set up correctly. Maybe the sound card is not getting data from the right
 | 
			
		||||
input source. Maybe you have a really awful audio interface (like I do)
 | 
			
		||||
that only captures in stereo and also requires that one channel be flipped.
 | 
			
		||||
If you are one of these people, then export 'AUDIO_FLIP_LEFT=1' before
 | 
			
		||||
starting ffmpeg.
 | 
			
		||||
 | 
			
		||||
@subsection The audio and video lose sync after a while.
 | 
			
		||||
 | 
			
		||||
Yes, they do.
 | 
			
		||||
 | 
			
		||||
@subsection After a long while, the video update rate goes way down in WMP.
 | 
			
		||||
 | 
			
		||||
Yes, it does. Who knows why?
 | 
			
		||||
 | 
			
		||||
@subsection WMP 6.4 behaves differently to WMP 7.
 | 
			
		||||
 | 
			
		||||
Yes, it does. Any thoughts on this would be gratefully received. These
 | 
			
		||||
differences extend to embedding WMP into a web page. [There are two
 | 
			
		||||
object IDs that you can use: The old one, which does not play well, and
 | 
			
		||||
the new one, which does (both tested on the same system). However,
 | 
			
		||||
I suspect that the new one is not available unless you have installed WMP 7].
 | 
			
		||||
 | 
			
		||||
@section What else can it do?
 | 
			
		||||
 | 
			
		||||
@@ -249,6 +177,9 @@ specify a time. In addition, ffserver will skip frames until a key_frame
 | 
			
		||||
is found. This further reduces the startup delay by not transferring data
 | 
			
		||||
that will be discarded.
 | 
			
		||||
 | 
			
		||||
* You may want to adjust the MaxBandwidth in the ffserver.conf to limit
 | 
			
		||||
the amount of bandwidth consumed by live streams.
 | 
			
		||||
 | 
			
		||||
@section Why does the ?buffer / Preroll stop working after a time?
 | 
			
		||||
 | 
			
		||||
It turns out that (on my machine at least) the number of frames successfully
 | 
			
		||||
@@ -282,610 +213,43 @@ You use this by adding the ?date= to the end of the URL for the stream.
 | 
			
		||||
For example:   @samp{http://localhost:8080/test.asf?date=2002-07-26T23:05:00}.
 | 
			
		||||
@c man end
 | 
			
		||||
 | 
			
		||||
@section What is FFM, FFM2
 | 
			
		||||
 | 
			
		||||
FFM and FFM2 are formats used by ffserver. They allow storing a wide variety of
 | 
			
		||||
video and audio streams and encoding options, and can store a moving time segment
 | 
			
		||||
of an infinite movie or a whole movie.
 | 
			
		||||
 | 
			
		||||
FFM is version specific, and there is limited compatibility of FFM files
 | 
			
		||||
generated by one version of ffmpeg/ffserver and another version of
 | 
			
		||||
ffmpeg/ffserver. It may work but it is not guaranteed to work.
 | 
			
		||||
 | 
			
		||||
FFM2 is extensible while maintaining compatibility and should work between
 | 
			
		||||
differing versions of tools. FFM2 is the default.
 | 
			
		||||
 | 
			
		||||
@chapter Options
 | 
			
		||||
@c man begin OPTIONS
 | 
			
		||||
 | 
			
		||||
@include fftools-common-opts.texi
 | 
			
		||||
@include avtools-common-opts.texi
 | 
			
		||||
 | 
			
		||||
@section Main options
 | 
			
		||||
 | 
			
		||||
@table @option
 | 
			
		||||
@item -f @var{configfile}
 | 
			
		||||
Read configuration file @file{configfile}. If not specified it will
 | 
			
		||||
read by default from @file{/etc/ffserver.conf}.
 | 
			
		||||
 | 
			
		||||
Use @file{configfile} instead of @file{/etc/ffserver.conf}.
 | 
			
		||||
@item -n
 | 
			
		||||
Enable no-launch mode. This option disables all the @code{Launch}
 | 
			
		||||
directives within the various @code{<Feed>} sections. Since
 | 
			
		||||
@command{ffserver} will not launch any @command{ffmpeg} instances, you
 | 
			
		||||
will have to launch them manually.
 | 
			
		||||
 | 
			
		||||
Enable no-launch mode. This option disables all the Launch directives
 | 
			
		||||
within the various <Stream> sections. Since ffserver will not launch
 | 
			
		||||
any ffmpeg instances, you will have to launch them manually.
 | 
			
		||||
@item -d
 | 
			
		||||
Enable debug mode. This option increases log verbosity, and directs
 | 
			
		||||
log messages to stdout. When specified, the @option{CustomLog} option
 | 
			
		||||
is ignored.
 | 
			
		||||
Enable debug mode. This option increases log verbosity, directs log
 | 
			
		||||
messages to stdout.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@chapter Configuration file syntax
 | 
			
		||||
 | 
			
		||||
@command{ffserver} reads a configuration file containing global
 | 
			
		||||
options and settings for each stream and feed.
 | 
			
		||||
 | 
			
		||||
The configuration file consists of global options and dedicated
 | 
			
		||||
sections, which must be introduced by "<@var{SECTION_NAME}
 | 
			
		||||
@var{ARGS}>" on a separate line and must be terminated by a line in
 | 
			
		||||
the form "</@var{SECTION_NAME}>". @var{ARGS} is optional.
 | 
			
		||||
 | 
			
		||||
Currently the following sections are recognized: @samp{Feed},
 | 
			
		||||
@samp{Stream}, @samp{Redirect}.
 | 
			
		||||
 | 
			
		||||
A line starting with @code{#} is ignored and treated as a comment.
 | 
			
		||||
 | 
			
		||||
Name of options and sections are case-insensitive.
 | 
			
		||||
 | 
			
		||||
@section ACL syntax
 | 
			
		||||
An ACL (Access Control List) specifies the address which are allowed
 | 
			
		||||
to access a given stream, or to write a given feed.
 | 
			
		||||
 | 
			
		||||
It accepts the folling forms
 | 
			
		||||
@itemize
 | 
			
		||||
@item
 | 
			
		||||
Allow/deny access to @var{address}.
 | 
			
		||||
@example
 | 
			
		||||
ACL ALLOW <address>
 | 
			
		||||
ACL DENY <address>
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
Allow/deny access to ranges of addresses from @var{first_address} to
 | 
			
		||||
@var{last_address}.
 | 
			
		||||
@example
 | 
			
		||||
ACL ALLOW <first_address> <last_address>
 | 
			
		||||
ACL DENY <first_address> <last_address>
 | 
			
		||||
@end example
 | 
			
		||||
@end itemize
 | 
			
		||||
 | 
			
		||||
You can repeat the ACL allow/deny as often as you like. It is on a per
 | 
			
		||||
stream basis. The first match defines the action. If there are no matches,
 | 
			
		||||
then the default is the inverse of the last ACL statement.
 | 
			
		||||
 | 
			
		||||
Thus 'ACL allow localhost' only allows access from localhost.
 | 
			
		||||
'ACL deny 1.0.0.0 1.255.255.255' would deny the whole of network 1 and
 | 
			
		||||
allow everybody else.
 | 
			
		||||
 | 
			
		||||
@section Global options
 | 
			
		||||
@table @option
 | 
			
		||||
@item HTTPPort @var{port_number}
 | 
			
		||||
@item Port @var{port_number}
 | 
			
		||||
@item RTSPPort @var{port_number}
 | 
			
		||||
 | 
			
		||||
@var{HTTPPort} sets the HTTP server listening TCP port number,
 | 
			
		||||
@var{RTSPPort} sets the RTSP server listening TCP port number.
 | 
			
		||||
 | 
			
		||||
@var{Port} is the equivalent of @var{HTTPPort} and is deprecated.
 | 
			
		||||
 | 
			
		||||
You must select a different port from your standard HTTP web server if
 | 
			
		||||
it is running on the same computer.
 | 
			
		||||
 | 
			
		||||
If not specified, no corresponding server will be created.
 | 
			
		||||
 | 
			
		||||
@item HTTPBindAddress @var{ip_address}
 | 
			
		||||
@item BindAddress @var{ip_address}
 | 
			
		||||
@item RTSPBindAddress @var{ip_address}
 | 
			
		||||
Set address on which the HTTP/RTSP server is bound. Only useful if you
 | 
			
		||||
have several network interfaces.
 | 
			
		||||
 | 
			
		||||
@var{BindAddress} is the equivalent of @var{HTTPBindAddress} and is
 | 
			
		||||
deprecated.
 | 
			
		||||
 | 
			
		||||
@item MaxHTTPConnections @var{n}
 | 
			
		||||
Set number of simultaneous HTTP connections that can be handled. It
 | 
			
		||||
has to be defined @emph{before} the @option{MaxClients} parameter,
 | 
			
		||||
since it defines the @option{MaxClients} maximum limit.
 | 
			
		||||
 | 
			
		||||
Default value is 2000.
 | 
			
		||||
 | 
			
		||||
@item MaxClients @var{n}
 | 
			
		||||
Set number of simultaneous requests that can be handled. Since
 | 
			
		||||
@command{ffserver} is very fast, it is more likely that you will want
 | 
			
		||||
to leave this high and use @option{MaxBandwidth}.
 | 
			
		||||
 | 
			
		||||
Default value is 5.
 | 
			
		||||
 | 
			
		||||
@item MaxBandwidth @var{kbps}
 | 
			
		||||
Set the maximum amount of kbit/sec that you are prepared to consume
 | 
			
		||||
when streaming to clients.
 | 
			
		||||
 | 
			
		||||
Default value is 1000.
 | 
			
		||||
 | 
			
		||||
@item CustomLog @var{filename}
 | 
			
		||||
Set access log file (uses standard Apache log file format). '-' is the
 | 
			
		||||
standard output.
 | 
			
		||||
 | 
			
		||||
If not specified @command{ffserver} will produce no log.
 | 
			
		||||
 | 
			
		||||
In case the commandline option @option{-d} is specified this option is
 | 
			
		||||
ignored, and the log is written to standard output.
 | 
			
		||||
 | 
			
		||||
@item NoDaemon
 | 
			
		||||
Set no-daemon mode. This option is currently ignored since now
 | 
			
		||||
@command{ffserver} will always work in no-daemon mode, and is
 | 
			
		||||
deprecated.
 | 
			
		||||
 | 
			
		||||
@item UseDefaults
 | 
			
		||||
@item NoDefaults
 | 
			
		||||
Control whether default codec options are used for the all streams or not.
 | 
			
		||||
Each stream may overwrite this setting for its own. Default is @var{UseDefaults}.
 | 
			
		||||
The lastest occurrence overrides previous if multiple definitions.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@section Feed section
 | 
			
		||||
 | 
			
		||||
A Feed section defines a feed provided to @command{ffserver}.
 | 
			
		||||
 | 
			
		||||
Each live feed contains one video and/or audio sequence coming from an
 | 
			
		||||
@command{ffmpeg} encoder or another @command{ffserver}. This sequence
 | 
			
		||||
may be encoded simultaneously with several codecs at several
 | 
			
		||||
resolutions.
 | 
			
		||||
 | 
			
		||||
A feed instance specification is introduced by a line in the form:
 | 
			
		||||
@example
 | 
			
		||||
<Feed FEED_FILENAME>
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
where @var{FEED_FILENAME} specifies the unique name of the FFM stream.
 | 
			
		||||
 | 
			
		||||
The following options are recognized within a Feed section.
 | 
			
		||||
 | 
			
		||||
@table @option
 | 
			
		||||
@item File @var{filename}
 | 
			
		||||
@item ReadOnlyFile @var{filename}
 | 
			
		||||
Set the path where the feed file is stored on disk.
 | 
			
		||||
 | 
			
		||||
If not specified, the @file{/tmp/FEED.ffm} is assumed, where
 | 
			
		||||
@var{FEED} is the feed name.
 | 
			
		||||
 | 
			
		||||
If @option{ReadOnlyFile} is used the file is marked as read-only and
 | 
			
		||||
it will not be deleted or updated.
 | 
			
		||||
 | 
			
		||||
@item Truncate
 | 
			
		||||
Truncate the feed file, rather than appending to it. By default
 | 
			
		||||
@command{ffserver} will append data to the file, until the maximum
 | 
			
		||||
file size value is reached (see @option{FileMaxSize} option).
 | 
			
		||||
 | 
			
		||||
@item FileMaxSize @var{size}
 | 
			
		||||
Set maximum size of the feed file in bytes. 0 means unlimited. The
 | 
			
		||||
postfixes @code{K} (2^10), @code{M} (2^20), and @code{G} (2^30) are
 | 
			
		||||
recognized.
 | 
			
		||||
 | 
			
		||||
Default value is 5M.
 | 
			
		||||
 | 
			
		||||
@item Launch @var{args}
 | 
			
		||||
Launch an @command{ffmpeg} command when creating @command{ffserver}.
 | 
			
		||||
 | 
			
		||||
@var{args} must be a sequence of arguments to be provided to an
 | 
			
		||||
@command{ffmpeg} instance. The first provided argument is ignored, and
 | 
			
		||||
it is replaced by a path with the same dirname of the @command{ffserver}
 | 
			
		||||
instance, followed by the remaining argument and terminated with a
 | 
			
		||||
path corresponding to the feed.
 | 
			
		||||
 | 
			
		||||
When the launched process exits, @command{ffserver} will launch
 | 
			
		||||
another program instance.
 | 
			
		||||
 | 
			
		||||
In case you need a more complex @command{ffmpeg} configuration,
 | 
			
		||||
e.g. if you need to generate multiple FFM feeds with a single
 | 
			
		||||
@command{ffmpeg} instance, you should launch @command{ffmpeg} by hand.
 | 
			
		||||
 | 
			
		||||
This option is ignored in case the commandline option @option{-n} is
 | 
			
		||||
specified.
 | 
			
		||||
 | 
			
		||||
@item ACL @var{spec}
 | 
			
		||||
Specify the list of IP address which are allowed or denied to write
 | 
			
		||||
the feed. Multiple ACL options can be specified.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@section Stream section
 | 
			
		||||
 | 
			
		||||
A Stream section defines a stream provided by @command{ffserver}, and
 | 
			
		||||
identified by a single name.
 | 
			
		||||
 | 
			
		||||
The stream is sent when answering a request containing the stream
 | 
			
		||||
name.
 | 
			
		||||
 | 
			
		||||
A stream section must be introduced by the line:
 | 
			
		||||
@example
 | 
			
		||||
<Stream STREAM_NAME>
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
where @var{STREAM_NAME} specifies the unique name of the stream.
 | 
			
		||||
 | 
			
		||||
The following options are recognized within a Stream section.
 | 
			
		||||
 | 
			
		||||
Encoding options are marked with the @emph{encoding} tag, and they are
 | 
			
		||||
used to set the encoding parameters, and are mapped to libavcodec
 | 
			
		||||
encoding options. Not all encoding options are supported, in
 | 
			
		||||
particular it is not possible to set encoder private options. In order
 | 
			
		||||
to override the encoding options specified by @command{ffserver}, you
 | 
			
		||||
can use the @command{ffmpeg} @option{override_ffserver} commandline
 | 
			
		||||
option.
 | 
			
		||||
 | 
			
		||||
Only one of the @option{Feed} and @option{File} options should be set.
 | 
			
		||||
 | 
			
		||||
@table @option
 | 
			
		||||
@item Feed @var{feed_name}
 | 
			
		||||
Set the input feed. @var{feed_name} must correspond to an existing
 | 
			
		||||
feed defined in a @code{Feed} section.
 | 
			
		||||
 | 
			
		||||
When this option is set, encoding options are used to setup the
 | 
			
		||||
encoding operated by the remote @command{ffmpeg} process.
 | 
			
		||||
 | 
			
		||||
@item File @var{filename}
 | 
			
		||||
Set the filename of the pre-recorded input file to stream.
 | 
			
		||||
 | 
			
		||||
When this option is set, encoding options are ignored and the input
 | 
			
		||||
file content is re-streamed as is.
 | 
			
		||||
 | 
			
		||||
@item Format @var{format_name}
 | 
			
		||||
Set the format of the output stream.
 | 
			
		||||
 | 
			
		||||
Must be the name of a format recognized by FFmpeg. If set to
 | 
			
		||||
@samp{status}, it is treated as a status stream.
 | 
			
		||||
 | 
			
		||||
@item InputFormat @var{format_name}
 | 
			
		||||
Set input format. If not specified, it is automatically guessed.
 | 
			
		||||
 | 
			
		||||
@item Preroll @var{n}
 | 
			
		||||
Set this to the number of seconds backwards in time to start. Note that
 | 
			
		||||
most players will buffer 5-10 seconds of video, and also you need to allow
 | 
			
		||||
for a keyframe to appear in the data stream.
 | 
			
		||||
 | 
			
		||||
Default value is 0.
 | 
			
		||||
 | 
			
		||||
@item StartSendOnKey
 | 
			
		||||
Do not send stream until it gets the first key frame. By default
 | 
			
		||||
@command{ffserver} will send data immediately.
 | 
			
		||||
 | 
			
		||||
@item MaxTime @var{n}
 | 
			
		||||
Set the number of seconds to run. This value set the maximum duration
 | 
			
		||||
of the stream a client will be able to receive.
 | 
			
		||||
 | 
			
		||||
A value of 0 means that no limit is set on the stream duration.
 | 
			
		||||
 | 
			
		||||
@item ACL @var{spec}
 | 
			
		||||
Set ACL for the stream.
 | 
			
		||||
 | 
			
		||||
@item DynamicACL @var{spec}
 | 
			
		||||
 | 
			
		||||
@item RTSPOption @var{option}
 | 
			
		||||
 | 
			
		||||
@item MulticastAddress @var{address}
 | 
			
		||||
 | 
			
		||||
@item MulticastPort @var{port}
 | 
			
		||||
 | 
			
		||||
@item MulticastTTL @var{integer}
 | 
			
		||||
 | 
			
		||||
@item NoLoop
 | 
			
		||||
 | 
			
		||||
@item FaviconURL @var{url}
 | 
			
		||||
Set favicon (favourite icon) for the server status page. It is ignored
 | 
			
		||||
for regular streams.
 | 
			
		||||
 | 
			
		||||
@item Author @var{value}
 | 
			
		||||
@item Comment @var{value}
 | 
			
		||||
@item Copyright @var{value}
 | 
			
		||||
@item Title @var{value}
 | 
			
		||||
Set metadata corresponding to the option. All these options are
 | 
			
		||||
deprecated in favor of @option{Metadata}.
 | 
			
		||||
 | 
			
		||||
@item Metadata @var{key} @var{value}
 | 
			
		||||
Set metadata value on the output stream.
 | 
			
		||||
 | 
			
		||||
@item UseDefaults
 | 
			
		||||
@item NoDefaults
 | 
			
		||||
Control whether default codec options are used for the stream or not.
 | 
			
		||||
Default is @var{UseDefaults} unless disabled globally.
 | 
			
		||||
 | 
			
		||||
@item NoAudio
 | 
			
		||||
@item NoVideo
 | 
			
		||||
Suppress audio/video.
 | 
			
		||||
 | 
			
		||||
@item AudioCodec @var{codec_name} (@emph{encoding,audio})
 | 
			
		||||
Set audio codec.
 | 
			
		||||
 | 
			
		||||
@item AudioBitRate @var{rate} (@emph{encoding,audio})
 | 
			
		||||
Set bitrate for the audio stream in kbits per second.
 | 
			
		||||
 | 
			
		||||
@item AudioChannels @var{n} (@emph{encoding,audio})
 | 
			
		||||
Set number of audio channels.
 | 
			
		||||
 | 
			
		||||
@item AudioSampleRate @var{n} (@emph{encoding,audio})
 | 
			
		||||
Set sampling frequency for audio. When using low bitrates, you should
 | 
			
		||||
lower this frequency to 22050 or 11025. The supported frequencies
 | 
			
		||||
depend on the selected audio codec.
 | 
			
		||||
 | 
			
		||||
@item AVOptionAudio [@var{codec}:]@var{option} @var{value} (@emph{encoding,audio})
 | 
			
		||||
Set generic or private option for audio stream.
 | 
			
		||||
Private option must be prefixed with codec name or codec must be defined before.
 | 
			
		||||
 | 
			
		||||
@item AVPresetAudio @var{preset} (@emph{encoding,audio})
 | 
			
		||||
Set preset for audio stream.
 | 
			
		||||
 | 
			
		||||
@item VideoCodec @var{codec_name} (@emph{encoding,video})
 | 
			
		||||
Set video codec.
 | 
			
		||||
 | 
			
		||||
@item VideoBitRate @var{n} (@emph{encoding,video})
 | 
			
		||||
Set bitrate for the video stream in kbits per second.
 | 
			
		||||
 | 
			
		||||
@item VideoBitRateRange @var{range} (@emph{encoding,video})
 | 
			
		||||
Set video bitrate range.
 | 
			
		||||
 | 
			
		||||
A range must be specified in the form @var{minrate}-@var{maxrate}, and
 | 
			
		||||
specifies the @option{minrate} and @option{maxrate} encoding options
 | 
			
		||||
expressed in kbits per second.
 | 
			
		||||
 | 
			
		||||
@item VideoBitRateRangeTolerance @var{n} (@emph{encoding,video})
 | 
			
		||||
Set video bitrate tolerance in kbits per second.
 | 
			
		||||
 | 
			
		||||
@item PixelFormat @var{pixel_format} (@emph{encoding,video})
 | 
			
		||||
Set video pixel format.
 | 
			
		||||
 | 
			
		||||
@item Debug @var{integer} (@emph{encoding,video})
 | 
			
		||||
Set video @option{debug} encoding option.
 | 
			
		||||
 | 
			
		||||
@item Strict @var{integer} (@emph{encoding,video})
 | 
			
		||||
Set video @option{strict} encoding option.
 | 
			
		||||
 | 
			
		||||
@item VideoBufferSize @var{n} (@emph{encoding,video})
 | 
			
		||||
Set ratecontrol buffer size, expressed in KB.
 | 
			
		||||
 | 
			
		||||
@item VideoFrameRate @var{n} (@emph{encoding,video})
 | 
			
		||||
Set number of video frames per second.
 | 
			
		||||
 | 
			
		||||
@item VideoSize (@emph{encoding,video})
 | 
			
		||||
Set size of the video frame, must be an abbreviation or in the form
 | 
			
		||||
@var{W}x@var{H}.  See @ref{video size syntax,,the Video size section
 | 
			
		||||
in the ffmpeg-utils(1) manual,ffmpeg-utils}.
 | 
			
		||||
 | 
			
		||||
Default value is @code{160x128}.
 | 
			
		||||
 | 
			
		||||
@item VideoIntraOnly (@emph{encoding,video})
 | 
			
		||||
Transmit only intra frames (useful for low bitrates, but kills frame rate).
 | 
			
		||||
 | 
			
		||||
@item VideoGopSize @var{n} (@emph{encoding,video})
 | 
			
		||||
If non-intra only, an intra frame is transmitted every VideoGopSize
 | 
			
		||||
frames. Video synchronization can only begin at an intra frame.
 | 
			
		||||
 | 
			
		||||
@item VideoTag @var{tag} (@emph{encoding,video})
 | 
			
		||||
Set video tag.
 | 
			
		||||
 | 
			
		||||
@item VideoHighQuality (@emph{encoding,video})
 | 
			
		||||
@item Video4MotionVector (@emph{encoding,video})
 | 
			
		||||
 | 
			
		||||
@item BitExact (@emph{encoding,video})
 | 
			
		||||
Set bitexact encoding flag.
 | 
			
		||||
 | 
			
		||||
@item IdctSimple (@emph{encoding,video})
 | 
			
		||||
Set simple IDCT algorithm.
 | 
			
		||||
 | 
			
		||||
@item Qscale @var{n} (@emph{encoding,video})
 | 
			
		||||
Enable constant quality encoding, and set video qscale (quantization
 | 
			
		||||
scale) value, expressed in @var{n} QP units.
 | 
			
		||||
 | 
			
		||||
@item VideoQMin @var{n} (@emph{encoding,video})
 | 
			
		||||
@item VideoQMax @var{n} (@emph{encoding,video})
 | 
			
		||||
Set video qmin/qmax.
 | 
			
		||||
 | 
			
		||||
@item VideoQDiff @var{integer} (@emph{encoding,video})
 | 
			
		||||
Set video @option{qdiff} encoding option.
 | 
			
		||||
 | 
			
		||||
@item LumiMask @var{float} (@emph{encoding,video})
 | 
			
		||||
@item DarkMask @var{float} (@emph{encoding,video})
 | 
			
		||||
Set @option{lumi_mask}/@option{dark_mask} encoding options.
 | 
			
		||||
 | 
			
		||||
@item AVOptionVideo [@var{codec}:]@var{option} @var{value} (@emph{encoding,video})
 | 
			
		||||
Set generic or private option for video stream.
 | 
			
		||||
Private option must be prefixed with codec name or codec must be defined before.
 | 
			
		||||
 | 
			
		||||
@item AVPresetVideo @var{preset} (@emph{encoding,video})
 | 
			
		||||
Set preset for video stream.
 | 
			
		||||
 | 
			
		||||
@var{preset} must be the path of a preset file.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@subsection Server status stream
 | 
			
		||||
 | 
			
		||||
A server status stream is a special stream which is used to show
 | 
			
		||||
statistics about the @command{ffserver} operations.
 | 
			
		||||
 | 
			
		||||
It must be specified setting the option @option{Format} to
 | 
			
		||||
@samp{status}.
 | 
			
		||||
 | 
			
		||||
@section Redirect section
 | 
			
		||||
 | 
			
		||||
A redirect section specifies where to redirect the requested URL to
 | 
			
		||||
another page.
 | 
			
		||||
 | 
			
		||||
A redirect section must be introduced by the line:
 | 
			
		||||
@example
 | 
			
		||||
<Redirect NAME>
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
where @var{NAME} is the name of the page which should be redirected.
 | 
			
		||||
 | 
			
		||||
It only accepts the option @option{URL}, which specify the redirection
 | 
			
		||||
URL.
 | 
			
		||||
 | 
			
		||||
@chapter Stream examples
 | 
			
		||||
 | 
			
		||||
@itemize
 | 
			
		||||
@item
 | 
			
		||||
Multipart JPEG
 | 
			
		||||
@example
 | 
			
		||||
<Stream test.mjpg>
 | 
			
		||||
Feed feed1.ffm
 | 
			
		||||
Format mpjpeg
 | 
			
		||||
VideoFrameRate 2
 | 
			
		||||
VideoIntraOnly
 | 
			
		||||
NoAudio
 | 
			
		||||
Strict -1
 | 
			
		||||
</Stream>
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
Single JPEG
 | 
			
		||||
@example
 | 
			
		||||
<Stream test.jpg>
 | 
			
		||||
Feed feed1.ffm
 | 
			
		||||
Format jpeg
 | 
			
		||||
VideoFrameRate 2
 | 
			
		||||
VideoIntraOnly
 | 
			
		||||
VideoSize 352x240
 | 
			
		||||
NoAudio
 | 
			
		||||
Strict -1
 | 
			
		||||
</Stream>
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
Flash
 | 
			
		||||
@example
 | 
			
		||||
<Stream test.swf>
 | 
			
		||||
Feed feed1.ffm
 | 
			
		||||
Format swf
 | 
			
		||||
VideoFrameRate 2
 | 
			
		||||
VideoIntraOnly
 | 
			
		||||
NoAudio
 | 
			
		||||
</Stream>
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
ASF compatible
 | 
			
		||||
@example
 | 
			
		||||
<Stream test.asf>
 | 
			
		||||
Feed feed1.ffm
 | 
			
		||||
Format asf
 | 
			
		||||
VideoFrameRate 15
 | 
			
		||||
VideoSize 352x240
 | 
			
		||||
VideoBitRate 256
 | 
			
		||||
VideoBufferSize 40
 | 
			
		||||
VideoGopSize 30
 | 
			
		||||
AudioBitRate 64
 | 
			
		||||
StartSendOnKey
 | 
			
		||||
</Stream>
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
MP3 audio
 | 
			
		||||
@example
 | 
			
		||||
<Stream test.mp3>
 | 
			
		||||
Feed feed1.ffm
 | 
			
		||||
Format mp2
 | 
			
		||||
AudioCodec mp3
 | 
			
		||||
AudioBitRate 64
 | 
			
		||||
AudioChannels 1
 | 
			
		||||
AudioSampleRate 44100
 | 
			
		||||
NoVideo
 | 
			
		||||
</Stream>
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
Ogg Vorbis audio
 | 
			
		||||
@example
 | 
			
		||||
<Stream test.ogg>
 | 
			
		||||
Feed feed1.ffm
 | 
			
		||||
Metadata title "Stream title"
 | 
			
		||||
AudioBitRate 64
 | 
			
		||||
AudioChannels 2
 | 
			
		||||
AudioSampleRate 44100
 | 
			
		||||
NoVideo
 | 
			
		||||
</Stream>
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
Real with audio only at 32 kbits
 | 
			
		||||
@example
 | 
			
		||||
<Stream test.ra>
 | 
			
		||||
Feed feed1.ffm
 | 
			
		||||
Format rm
 | 
			
		||||
AudioBitRate 32
 | 
			
		||||
NoVideo
 | 
			
		||||
</Stream>
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
Real with audio and video at 64 kbits
 | 
			
		||||
@example
 | 
			
		||||
<Stream test.rm>
 | 
			
		||||
Feed feed1.ffm
 | 
			
		||||
Format rm
 | 
			
		||||
AudioBitRate 32
 | 
			
		||||
VideoBitRate 128
 | 
			
		||||
VideoFrameRate 25
 | 
			
		||||
VideoGopSize 25
 | 
			
		||||
</Stream>
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@item
 | 
			
		||||
For stream coming from a file: you only need to set the input filename
 | 
			
		||||
and optionally a new format.
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
<Stream file.rm>
 | 
			
		||||
File "/usr/local/httpd/htdocs/tlive.rm"
 | 
			
		||||
NoAudio
 | 
			
		||||
</Stream>
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
<Stream file.asf>
 | 
			
		||||
File "/usr/local/httpd/htdocs/test.asf"
 | 
			
		||||
NoAudio
 | 
			
		||||
Metadata author "Me"
 | 
			
		||||
Metadata copyright "Super MegaCorp"
 | 
			
		||||
Metadata title "Test stream from disk"
 | 
			
		||||
Metadata comment "Test comment"
 | 
			
		||||
</Stream>
 | 
			
		||||
@end example
 | 
			
		||||
@end itemize
 | 
			
		||||
 | 
			
		||||
@c man end
 | 
			
		||||
 | 
			
		||||
@include config.texi
 | 
			
		||||
@ifset config-all
 | 
			
		||||
@ifset config-avutil
 | 
			
		||||
@include utils.texi
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-avcodec
 | 
			
		||||
@include codecs.texi
 | 
			
		||||
@include bitstream_filters.texi
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-avformat
 | 
			
		||||
@include formats.texi
 | 
			
		||||
@include protocols.texi
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-avdevice
 | 
			
		||||
@include devices.texi
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-swresample
 | 
			
		||||
@include resampler.texi
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-swscale
 | 
			
		||||
@include scaler.texi
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-avfilter
 | 
			
		||||
@include filters.texi
 | 
			
		||||
@end ifset
 | 
			
		||||
@end ifset
 | 
			
		||||
 | 
			
		||||
@chapter See Also
 | 
			
		||||
 | 
			
		||||
@ifhtml
 | 
			
		||||
@ifset config-all
 | 
			
		||||
@url{ffserver.html,ffserver},
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-not-all
 | 
			
		||||
@url{ffserver-all.html,ffserver-all},
 | 
			
		||||
@end ifset
 | 
			
		||||
the @file{doc/ffserver.conf} example,
 | 
			
		||||
The @file{doc/ffserver.conf} example,
 | 
			
		||||
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe},
 | 
			
		||||
@url{ffmpeg-utils.html,ffmpeg-utils},
 | 
			
		||||
@url{ffmpeg-scaler.html,ffmpeg-scaler},
 | 
			
		||||
@@ -899,13 +263,7 @@ the @file{doc/ffserver.conf} example,
 | 
			
		||||
@end ifhtml
 | 
			
		||||
 | 
			
		||||
@ifnothtml
 | 
			
		||||
@ifset config-all
 | 
			
		||||
ffserver(1),
 | 
			
		||||
@end ifset
 | 
			
		||||
@ifset config-not-all
 | 
			
		||||
ffserver-all(1),
 | 
			
		||||
@end ifset
 | 
			
		||||
the @file{doc/ffserver.conf} example, ffmpeg(1), ffplay(1), ffprobe(1),
 | 
			
		||||
The @file{doc/ffserver.conf} example, ffmpeg(1), ffplay(1), ffprobe(1),
 | 
			
		||||
ffmpeg-utils(1), ffmpeg-scaler(1), ffmpeg-resampler(1),
 | 
			
		||||
ffmpeg-codecs(1), ffmpeg-bitstream-filters(1), ffmpeg-formats(1),
 | 
			
		||||
ffmpeg-devices(1), ffmpeg-protocols(1), ffmpeg-filters(1)
 | 
			
		||||
 
 | 
			
		||||
@@ -1,389 +0,0 @@
 | 
			
		||||
All the numerical options, if not specified otherwise, accept a string
 | 
			
		||||
representing a number as input, which may be followed by one of the SI
 | 
			
		||||
unit prefixes, for example: 'K', 'M', or 'G'.
 | 
			
		||||
 | 
			
		||||
If 'i' is appended to the SI unit prefix, the complete prefix will be
 | 
			
		||||
interpreted as a unit prefix for binary multiples, which are based on
 | 
			
		||||
powers of 1024 instead of powers of 1000. Appending 'B' to the SI unit
 | 
			
		||||
prefix multiplies the value by 8. This allows using, for example:
 | 
			
		||||
'KB', 'MiB', 'G' and 'B' as number suffixes.
 | 
			
		||||
 | 
			
		||||
Options which do not take arguments are boolean options, and set the
 | 
			
		||||
corresponding value to true. They can be set to false by prefixing
 | 
			
		||||
the option name with "no". For example using "-nofoo"
 | 
			
		||||
will set the boolean option with name "foo" to false.
 | 
			
		||||
 | 
			
		||||
@anchor{Stream specifiers}
 | 
			
		||||
@section Stream specifiers
 | 
			
		||||
Some options are applied per-stream, e.g. bitrate or codec. Stream specifiers
 | 
			
		||||
are used to precisely specify which stream(s) a given option belongs to.
 | 
			
		||||
 | 
			
		||||
A stream specifier is a string generally appended to the option name and
 | 
			
		||||
separated from it by a colon. E.g. @code{-codec:a:1 ac3} contains the
 | 
			
		||||
@code{a:1} stream specifier, which matches the second audio stream. Therefore, it
 | 
			
		||||
would select the ac3 codec for the second audio stream.
 | 
			
		||||
 | 
			
		||||
A stream specifier can match several streams, so that the option is applied to all
 | 
			
		||||
of them. E.g. the stream specifier in @code{-b:a 128k} matches all audio
 | 
			
		||||
streams.
 | 
			
		||||
 | 
			
		||||
An empty stream specifier matches all streams. For example, @code{-codec copy}
 | 
			
		||||
or @code{-codec: copy} would copy all the streams without reencoding.
 | 
			
		||||
 | 
			
		||||
Possible forms of stream specifiers are:
 | 
			
		||||
@table @option
 | 
			
		||||
@item @var{stream_index}
 | 
			
		||||
Matches the stream with this index. E.g. @code{-threads:1 4} would set the
 | 
			
		||||
thread count for the second stream to 4.
 | 
			
		||||
@item @var{stream_type}[:@var{stream_index}]
 | 
			
		||||
@var{stream_type} is one of following: 'v' or 'V' for video, 'a' for audio, 's'
 | 
			
		||||
for subtitle, 'd' for data, and 't' for attachments. 'v' matches all video
 | 
			
		||||
streams, 'V' only matches video streams which are not attached pictures, video
 | 
			
		||||
thumbnails or cover arts.  If @var{stream_index} is given, then it matches
 | 
			
		||||
stream number @var{stream_index} of this type. Otherwise, it matches all
 | 
			
		||||
streams of this type.
 | 
			
		||||
@item p:@var{program_id}[:@var{stream_index}]
 | 
			
		||||
If @var{stream_index} is given, then it matches the stream with number @var{stream_index}
 | 
			
		||||
in the program with the id @var{program_id}. Otherwise, it matches all streams in the
 | 
			
		||||
program.
 | 
			
		||||
@item #@var{stream_id} or i:@var{stream_id}
 | 
			
		||||
Match the stream by stream id (e.g. PID in MPEG-TS container).
 | 
			
		||||
@item m:@var{key}[:@var{value}]
 | 
			
		||||
Matches streams with the metadata tag @var{key} having the specified value. If
 | 
			
		||||
@var{value} is not given, matches streams that contain the given tag with any
 | 
			
		||||
value.
 | 
			
		||||
@item u
 | 
			
		||||
Matches streams with usable configuration, the codec must be defined and the
 | 
			
		||||
essential information such as video dimension or audio sample rate must be present.
 | 
			
		||||
 | 
			
		||||
Note that in @command{ffmpeg}, matching by metadata will only work properly for
 | 
			
		||||
input files.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@section Generic options
 | 
			
		||||
 | 
			
		||||
These options are shared amongst the ff* tools.
 | 
			
		||||
 | 
			
		||||
@table @option
 | 
			
		||||
 | 
			
		||||
@item -L
 | 
			
		||||
Show license.
 | 
			
		||||
 | 
			
		||||
@item -h, -?, -help, --help [@var{arg}]
 | 
			
		||||
Show help. An optional parameter may be specified to print help about a specific
 | 
			
		||||
item. If no argument is specified, only basic (non advanced) tool
 | 
			
		||||
options are shown.
 | 
			
		||||
 | 
			
		||||
Possible values of @var{arg} are:
 | 
			
		||||
@table @option
 | 
			
		||||
@item long
 | 
			
		||||
Print advanced tool options in addition to the basic tool options.
 | 
			
		||||
 | 
			
		||||
@item full
 | 
			
		||||
Print complete list of options, including shared and private options
 | 
			
		||||
for encoders, decoders, demuxers, muxers, filters, etc.
 | 
			
		||||
 | 
			
		||||
@item decoder=@var{decoder_name}
 | 
			
		||||
Print detailed information about the decoder named @var{decoder_name}. Use the
 | 
			
		||||
@option{-decoders} option to get a list of all decoders.
 | 
			
		||||
 | 
			
		||||
@item encoder=@var{encoder_name}
 | 
			
		||||
Print detailed information about the encoder named @var{encoder_name}. Use the
 | 
			
		||||
@option{-encoders} option to get a list of all encoders.
 | 
			
		||||
 | 
			
		||||
@item demuxer=@var{demuxer_name}
 | 
			
		||||
Print detailed information about the demuxer named @var{demuxer_name}. Use the
 | 
			
		||||
@option{-formats} option to get a list of all demuxers and muxers.
 | 
			
		||||
 | 
			
		||||
@item muxer=@var{muxer_name}
 | 
			
		||||
Print detailed information about the muxer named @var{muxer_name}. Use the
 | 
			
		||||
@option{-formats} option to get a list of all muxers and demuxers.
 | 
			
		||||
 | 
			
		||||
@item filter=@var{filter_name}
 | 
			
		||||
Print detailed information about the filter name @var{filter_name}. Use the
 | 
			
		||||
@option{-filters} option to get a list of all filters.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@item -version
 | 
			
		||||
Show version.
 | 
			
		||||
 | 
			
		||||
@item -formats
 | 
			
		||||
Show available formats (including devices).
 | 
			
		||||
 | 
			
		||||
@item -devices
 | 
			
		||||
Show available devices.
 | 
			
		||||
 | 
			
		||||
@item -codecs
 | 
			
		||||
Show all codecs known to libavcodec.
 | 
			
		||||
 | 
			
		||||
Note that the term 'codec' is used throughout this documentation as a shortcut
 | 
			
		||||
for what is more correctly called a media bitstream format.
 | 
			
		||||
 | 
			
		||||
@item -decoders
 | 
			
		||||
Show available decoders.
 | 
			
		||||
 | 
			
		||||
@item -encoders
 | 
			
		||||
Show all available encoders.
 | 
			
		||||
 | 
			
		||||
@item -bsfs
 | 
			
		||||
Show available bitstream filters.
 | 
			
		||||
 | 
			
		||||
@item -protocols
 | 
			
		||||
Show available protocols.
 | 
			
		||||
 | 
			
		||||
@item -filters
 | 
			
		||||
Show available libavfilter filters.
 | 
			
		||||
 | 
			
		||||
@item -pix_fmts
 | 
			
		||||
Show available pixel formats.
 | 
			
		||||
 | 
			
		||||
@item -sample_fmts
 | 
			
		||||
Show available sample formats.
 | 
			
		||||
 | 
			
		||||
@item -layouts
 | 
			
		||||
Show channel names and standard channel layouts.
 | 
			
		||||
 | 
			
		||||
@item -colors
 | 
			
		||||
Show recognized color names.
 | 
			
		||||
 | 
			
		||||
@item -sources @var{device}[,@var{opt1}=@var{val1}[,@var{opt2}=@var{val2}]...]
 | 
			
		||||
Show autodetected sources of the intput device.
 | 
			
		||||
Some devices may provide system-dependent source names that cannot be autodetected.
 | 
			
		||||
The returned list cannot be assumed to be always complete.
 | 
			
		||||
@example
 | 
			
		||||
ffmpeg -sources pulse,server=192.168.0.4
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@item -sinks @var{device}[,@var{opt1}=@var{val1}[,@var{opt2}=@var{val2}]...]
 | 
			
		||||
Show autodetected sinks of the output device.
 | 
			
		||||
Some devices may provide system-dependent sink names that cannot be autodetected.
 | 
			
		||||
The returned list cannot be assumed to be always complete.
 | 
			
		||||
@example
 | 
			
		||||
ffmpeg -sinks pulse,server=192.168.0.4
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@item -loglevel [repeat+]@var{loglevel} | -v [repeat+]@var{loglevel}
 | 
			
		||||
Set the logging level used by the library.
 | 
			
		||||
Adding "repeat+" indicates that repeated log output should not be compressed
 | 
			
		||||
to the first line and the "Last message repeated n times" line will be
 | 
			
		||||
omitted. "repeat" can also be used alone.
 | 
			
		||||
If "repeat" is used alone, and with no prior loglevel set, the default
 | 
			
		||||
loglevel will be used. If multiple loglevel parameters are given, using
 | 
			
		||||
'repeat' will not change the loglevel.
 | 
			
		||||
@var{loglevel} is a string or a number containing one of the following values:
 | 
			
		||||
@table @samp
 | 
			
		||||
@item quiet, -8
 | 
			
		||||
Show nothing at all; be silent.
 | 
			
		||||
@item panic, 0
 | 
			
		||||
Only show fatal errors which could lead the process to crash, such as
 | 
			
		||||
and assert failure. This is not currently used for anything.
 | 
			
		||||
@item fatal, 8
 | 
			
		||||
Only show fatal errors. These are errors after which the process absolutely
 | 
			
		||||
cannot continue after.
 | 
			
		||||
@item error, 16
 | 
			
		||||
Show all errors, including ones which can be recovered from.
 | 
			
		||||
@item warning, 24
 | 
			
		||||
Show all warnings and errors. Any message related to possibly
 | 
			
		||||
incorrect or unexpected events will be shown.
 | 
			
		||||
@item info, 32
 | 
			
		||||
Show informative messages during processing. This is in addition to
 | 
			
		||||
warnings and errors. This is the default value.
 | 
			
		||||
@item verbose, 40
 | 
			
		||||
Same as @code{info}, except more verbose.
 | 
			
		||||
@item debug, 48
 | 
			
		||||
Show everything, including debugging information.
 | 
			
		||||
@item trace, 56
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
By default the program logs to stderr, if coloring is supported by the
 | 
			
		||||
terminal, colors are used to mark errors and warnings. Log coloring
 | 
			
		||||
can be disabled setting the environment variable
 | 
			
		||||
@env{AV_LOG_FORCE_NOCOLOR} or @env{NO_COLOR}, or can be forced setting
 | 
			
		||||
the environment variable @env{AV_LOG_FORCE_COLOR}.
 | 
			
		||||
The use of the environment variable @env{NO_COLOR} is deprecated and
 | 
			
		||||
will be dropped in a following FFmpeg version.
 | 
			
		||||
 | 
			
		||||
@item -report
 | 
			
		||||
Dump full command line and console output to a file named
 | 
			
		||||
@code{@var{program}-@var{YYYYMMDD}-@var{HHMMSS}.log} in the current
 | 
			
		||||
directory.
 | 
			
		||||
This file can be useful for bug reports.
 | 
			
		||||
It also implies @code{-loglevel verbose}.
 | 
			
		||||
 | 
			
		||||
Setting the environment variable @env{FFREPORT} to any value has the
 | 
			
		||||
same effect. If the value is a ':'-separated key=value sequence, these
 | 
			
		||||
options will affect the report; option values must be escaped if they
 | 
			
		||||
contain special characters or the options delimiter ':' (see the
 | 
			
		||||
``Quoting and escaping'' section in the ffmpeg-utils manual).
 | 
			
		||||
 | 
			
		||||
The following options are recognized:
 | 
			
		||||
@table @option
 | 
			
		||||
@item file
 | 
			
		||||
set the file name to use for the report; @code{%p} is expanded to the name
 | 
			
		||||
of the program, @code{%t} is expanded to a timestamp, @code{%%} is expanded
 | 
			
		||||
to a plain @code{%}
 | 
			
		||||
@item level
 | 
			
		||||
set the log verbosity level using a numerical value (see @code{-loglevel}).
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
For example, to output a report to a file named @file{ffreport.log}
 | 
			
		||||
using a log level of @code{32} (alias for log level @code{info}):
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
FFREPORT=file=ffreport.log:level=32 ffmpeg -i input output
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
Errors in parsing the environment variable are not fatal, and will not
 | 
			
		||||
appear in the report.
 | 
			
		||||
 | 
			
		||||
@item -hide_banner
 | 
			
		||||
Suppress printing banner.
 | 
			
		||||
 | 
			
		||||
All FFmpeg tools will normally show a copyright notice, build options
 | 
			
		||||
and library versions. This option can be used to suppress printing
 | 
			
		||||
this information.
 | 
			
		||||
 | 
			
		||||
@item -cpuflags flags (@emph{global})
 | 
			
		||||
Allows setting and clearing cpu flags. This option is intended
 | 
			
		||||
for testing. Do not use it unless you know what you're doing.
 | 
			
		||||
@example
 | 
			
		||||
ffmpeg -cpuflags -sse+mmx ...
 | 
			
		||||
ffmpeg -cpuflags mmx ...
 | 
			
		||||
ffmpeg -cpuflags 0 ...
 | 
			
		||||
@end example
 | 
			
		||||
Possible flags for this option are:
 | 
			
		||||
@table @samp
 | 
			
		||||
@item x86
 | 
			
		||||
@table @samp
 | 
			
		||||
@item mmx
 | 
			
		||||
@item mmxext
 | 
			
		||||
@item sse
 | 
			
		||||
@item sse2
 | 
			
		||||
@item sse2slow
 | 
			
		||||
@item sse3
 | 
			
		||||
@item sse3slow
 | 
			
		||||
@item ssse3
 | 
			
		||||
@item atom
 | 
			
		||||
@item sse4.1
 | 
			
		||||
@item sse4.2
 | 
			
		||||
@item avx
 | 
			
		||||
@item avx2
 | 
			
		||||
@item xop
 | 
			
		||||
@item fma3
 | 
			
		||||
@item fma4
 | 
			
		||||
@item 3dnow
 | 
			
		||||
@item 3dnowext
 | 
			
		||||
@item bmi1
 | 
			
		||||
@item bmi2
 | 
			
		||||
@item cmov
 | 
			
		||||
@end table
 | 
			
		||||
@item ARM
 | 
			
		||||
@table @samp
 | 
			
		||||
@item armv5te
 | 
			
		||||
@item armv6
 | 
			
		||||
@item armv6t2
 | 
			
		||||
@item vfp
 | 
			
		||||
@item vfpv3
 | 
			
		||||
@item neon
 | 
			
		||||
@item setend
 | 
			
		||||
@end table
 | 
			
		||||
@item AArch64
 | 
			
		||||
@table @samp
 | 
			
		||||
@item armv8
 | 
			
		||||
@item vfp
 | 
			
		||||
@item neon
 | 
			
		||||
@end table
 | 
			
		||||
@item PowerPC
 | 
			
		||||
@table @samp
 | 
			
		||||
@item altivec
 | 
			
		||||
@end table
 | 
			
		||||
@item Specific Processors
 | 
			
		||||
@table @samp
 | 
			
		||||
@item pentium2
 | 
			
		||||
@item pentium3
 | 
			
		||||
@item pentium4
 | 
			
		||||
@item k6
 | 
			
		||||
@item k62
 | 
			
		||||
@item athlon
 | 
			
		||||
@item athlonxp
 | 
			
		||||
@item k8
 | 
			
		||||
@end table
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@item -opencl_bench
 | 
			
		||||
This option is used to benchmark all available OpenCL devices and print the
 | 
			
		||||
results. This option is only available when FFmpeg has been compiled with
 | 
			
		||||
@code{--enable-opencl}.
 | 
			
		||||
 | 
			
		||||
When FFmpeg is configured with @code{--enable-opencl}, the options for the
 | 
			
		||||
global OpenCL context are set via @option{-opencl_options}. See the
 | 
			
		||||
"OpenCL Options" section in the ffmpeg-utils manual for the complete list of
 | 
			
		||||
supported options. Amongst others, these options include the ability to select
 | 
			
		||||
a specific platform and device to run the OpenCL code on. By default, FFmpeg
 | 
			
		||||
will run on the first device of the first platform. While the options for the
 | 
			
		||||
global OpenCL context provide flexibility to the user in selecting the OpenCL
 | 
			
		||||
device of their choice, most users would probably want to select the fastest
 | 
			
		||||
OpenCL device for their system.
 | 
			
		||||
 | 
			
		||||
This option assists the selection of the most efficient configuration by
 | 
			
		||||
identifying the appropriate device for the user's system. The built-in
 | 
			
		||||
benchmark is run on all the OpenCL devices and the performance is measured for
 | 
			
		||||
each device. The devices in the results list are sorted based on their
 | 
			
		||||
performance with the fastest device listed first. The user can subsequently
 | 
			
		||||
invoke @command{ffmpeg} using the device deemed most appropriate via
 | 
			
		||||
@option{-opencl_options} to obtain the best performance for the OpenCL
 | 
			
		||||
accelerated code.
 | 
			
		||||
 | 
			
		||||
Typical usage to use the fastest OpenCL device involve the following steps.
 | 
			
		||||
 | 
			
		||||
Run the command:
 | 
			
		||||
@example
 | 
			
		||||
ffmpeg -opencl_bench
 | 
			
		||||
@end example
 | 
			
		||||
Note down the platform ID (@var{pidx}) and device ID (@var{didx}) of the first
 | 
			
		||||
i.e. fastest device in the list.
 | 
			
		||||
Select the platform and device using the command:
 | 
			
		||||
@example
 | 
			
		||||
ffmpeg -opencl_options platform_idx=@var{pidx}:device_idx=@var{didx} ...
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
@item -opencl_options options (@emph{global})
 | 
			
		||||
Set OpenCL environment options. This option is only available when
 | 
			
		||||
FFmpeg has been compiled with @code{--enable-opencl}.
 | 
			
		||||
 | 
			
		||||
@var{options} must be a list of @var{key}=@var{value} option pairs
 | 
			
		||||
separated by ':'. See the ``OpenCL Options'' section in the
 | 
			
		||||
ffmpeg-utils manual for the list of supported options.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@section AVOptions
 | 
			
		||||
 | 
			
		||||
These options are provided directly by the libavformat, libavdevice and
 | 
			
		||||
libavcodec libraries. To see the list of available AVOptions, use the
 | 
			
		||||
@option{-help} option. They are separated into two categories:
 | 
			
		||||
@table @option
 | 
			
		||||
@item generic
 | 
			
		||||
These options can be set for any container, codec or device. Generic options
 | 
			
		||||
are listed under AVFormatContext options for containers/devices and under
 | 
			
		||||
AVCodecContext options for codecs.
 | 
			
		||||
@item private
 | 
			
		||||
These options are specific to the given container, device or codec. Private
 | 
			
		||||
options are listed under their corresponding containers/devices/codecs.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
For example to write an ID3v2.3 header instead of a default ID3v2.4 to
 | 
			
		||||
an MP3 file, use the @option{id3v2_version} private option of the MP3
 | 
			
		||||
muxer:
 | 
			
		||||
@example
 | 
			
		||||
ffmpeg -i input.flac -id3v2_version 3 out.mp3
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
All codec AVOptions are per-stream, and thus a stream specifier
 | 
			
		||||
should be attached to them.
 | 
			
		||||
 | 
			
		||||
Note: the @option{-nooption} syntax cannot be used for boolean
 | 
			
		||||
AVOptions, use @option{-option 0}/@option{-option 1}.
 | 
			
		||||
 | 
			
		||||
Note: the old undocumented way of specifying per-stream AVOptions by
 | 
			
		||||
prepending v/a/s to the options name is now obsolete and will be
 | 
			
		||||
removed soon.
 | 
			
		||||
@@ -29,11 +29,6 @@ Format negotiation
 | 
			
		||||
  same format amongst a supported list, all it has to do is use a reference
 | 
			
		||||
  to the same list of formats.
 | 
			
		||||
 | 
			
		||||
  query_formats can leave some formats unset and return AVERROR(EAGAIN) to
 | 
			
		||||
  cause the negotiation mechanism to try again later. That can be used by
 | 
			
		||||
  filters with complex requirements to use the format negotiated on one link
 | 
			
		||||
  to set the formats supported on another.
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
Buffer references ownership and permissions
 | 
			
		||||
===========================================
 | 
			
		||||
@@ -98,7 +93,7 @@ Buffer references ownership and permissions
 | 
			
		||||
    The AVFilterLink structure has a few AVFilterBufferRef fields. The
 | 
			
		||||
    cur_buf and out_buf were used with the deprecated
 | 
			
		||||
    start_frame/draw_slice/end_frame API and should no longer be used.
 | 
			
		||||
    src_buf and partial_buf are used by libavfilter internally
 | 
			
		||||
    src_buf, cur_buf_copy and partial_buf are used by libavfilter internally
 | 
			
		||||
    and must not be accessed by filters.
 | 
			
		||||
 | 
			
		||||
  Reference permissions
 | 
			
		||||
@@ -166,7 +161,7 @@ Buffer references ownership and permissions
 | 
			
		||||
      WRITE permission.
 | 
			
		||||
 | 
			
		||||
    * Filters that read their input to produce a new frame on output (like
 | 
			
		||||
      scale) need the READ permission on input and must request a buffer
 | 
			
		||||
      scale) need the READ permission on input and and must request a buffer
 | 
			
		||||
      with the WRITE permission.
 | 
			
		||||
 | 
			
		||||
    * Filters that intend to keep a reference after the filtering process
 | 
			
		||||
 
 | 
			
		||||
							
								
								
									
										10395
									
								
								doc/filters.texi
									
									
									
									
									
								
							
							
						
						
									
										10395
									
								
								doc/filters.texi
									
									
									
									
									
								
							
										
											
												File diff suppressed because it is too large
												Load Diff
											
										
									
								
							
							
								
								
									
										249
									
								
								doc/formats.texi
									
									
									
									
									
								
							
							
						
						
									
										249
									
								
								doc/formats.texi
									
									
									
									
									
								
							@@ -1,249 +0,0 @@
 | 
			
		||||
@chapter Format Options
 | 
			
		||||
@c man begin FORMAT OPTIONS
 | 
			
		||||
 | 
			
		||||
The libavformat library provides some generic global options, which
 | 
			
		||||
can be set on all the muxers and demuxers. In addition each muxer or
 | 
			
		||||
demuxer may support so-called private options, which are specific for
 | 
			
		||||
that component.
 | 
			
		||||
 | 
			
		||||
Options may be set by specifying -@var{option} @var{value} in the
 | 
			
		||||
FFmpeg tools, or by setting the value explicitly in the
 | 
			
		||||
@code{AVFormatContext} options or using the @file{libavutil/opt.h} API
 | 
			
		||||
for programmatic use.
 | 
			
		||||
 | 
			
		||||
The list of supported options follows:
 | 
			
		||||
 | 
			
		||||
@table @option
 | 
			
		||||
@item avioflags @var{flags} (@emph{input/output})
 | 
			
		||||
Possible values:
 | 
			
		||||
@table @samp
 | 
			
		||||
@item direct
 | 
			
		||||
Reduce buffering.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@item probesize @var{integer} (@emph{input})
 | 
			
		||||
Set probing size in bytes, i.e. the size of the data to analyze to get
 | 
			
		||||
stream information. A higher value will enable detecting more
 | 
			
		||||
information in case it is dispersed into the stream, but will increase
 | 
			
		||||
latency. Must be an integer not lesser than 32. It is 5000000 by default.
 | 
			
		||||
 | 
			
		||||
@item packetsize @var{integer} (@emph{output})
 | 
			
		||||
Set packet size.
 | 
			
		||||
 | 
			
		||||
@item fflags @var{flags} (@emph{input/output})
 | 
			
		||||
Set format flags.
 | 
			
		||||
 | 
			
		||||
Possible values:
 | 
			
		||||
@table @samp
 | 
			
		||||
@item ignidx
 | 
			
		||||
Ignore index.
 | 
			
		||||
@item fastseek
 | 
			
		||||
Enable fast, but inaccurate seeks for some formats.
 | 
			
		||||
@item genpts
 | 
			
		||||
Generate PTS.
 | 
			
		||||
@item nofillin
 | 
			
		||||
Do not fill in missing values that can be exactly calculated.
 | 
			
		||||
@item noparse
 | 
			
		||||
Disable AVParsers, this needs @code{+nofillin} too.
 | 
			
		||||
@item igndts
 | 
			
		||||
Ignore DTS.
 | 
			
		||||
@item discardcorrupt
 | 
			
		||||
Discard corrupted frames.
 | 
			
		||||
@item sortdts
 | 
			
		||||
Try to interleave output packets by DTS.
 | 
			
		||||
@item keepside
 | 
			
		||||
Do not merge side data.
 | 
			
		||||
@item latm
 | 
			
		||||
Enable RTP MP4A-LATM payload.
 | 
			
		||||
@item nobuffer
 | 
			
		||||
Reduce the latency introduced by optional buffering
 | 
			
		||||
@item bitexact
 | 
			
		||||
Only write platform-, build- and time-independent data.
 | 
			
		||||
This ensures that file and data checksums are reproducible and match between
 | 
			
		||||
platforms. Its primary use is for regression testing.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@item seek2any @var{integer} (@emph{input})
 | 
			
		||||
Allow seeking to non-keyframes on demuxer level when supported if set to 1.
 | 
			
		||||
Default is 0.
 | 
			
		||||
 | 
			
		||||
@item analyzeduration @var{integer} (@emph{input})
 | 
			
		||||
Specify how many microseconds are analyzed to probe the input. A
 | 
			
		||||
higher value will enable detecting more accurate information, but will
 | 
			
		||||
increase latency. It defaults to 5,000,000 microseconds = 5 seconds.
 | 
			
		||||
 | 
			
		||||
@item cryptokey @var{hexadecimal string} (@emph{input})
 | 
			
		||||
Set decryption key.
 | 
			
		||||
 | 
			
		||||
@item indexmem @var{integer} (@emph{input})
 | 
			
		||||
Set max memory used for timestamp index (per stream).
 | 
			
		||||
 | 
			
		||||
@item rtbufsize @var{integer} (@emph{input})
 | 
			
		||||
Set max memory used for buffering real-time frames.
 | 
			
		||||
 | 
			
		||||
@item fdebug @var{flags} (@emph{input/output})
 | 
			
		||||
Print specific debug info.
 | 
			
		||||
 | 
			
		||||
Possible values:
 | 
			
		||||
@table @samp
 | 
			
		||||
@item ts
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@item max_delay @var{integer} (@emph{input/output})
 | 
			
		||||
Set maximum muxing or demuxing delay in microseconds.
 | 
			
		||||
 | 
			
		||||
@item fpsprobesize @var{integer} (@emph{input})
 | 
			
		||||
Set number of frames used to probe fps.
 | 
			
		||||
 | 
			
		||||
@item audio_preload @var{integer} (@emph{output})
 | 
			
		||||
Set microseconds by which audio packets should be interleaved earlier.
 | 
			
		||||
 | 
			
		||||
@item chunk_duration @var{integer} (@emph{output})
 | 
			
		||||
Set microseconds for each chunk.
 | 
			
		||||
 | 
			
		||||
@item chunk_size @var{integer} (@emph{output})
 | 
			
		||||
Set size in bytes for each chunk.
 | 
			
		||||
 | 
			
		||||
@item err_detect, f_err_detect @var{flags} (@emph{input})
 | 
			
		||||
Set error detection flags. @code{f_err_detect} is deprecated and
 | 
			
		||||
should be used only via the @command{ffmpeg} tool.
 | 
			
		||||
 | 
			
		||||
Possible values:
 | 
			
		||||
@table @samp
 | 
			
		||||
@item crccheck
 | 
			
		||||
Verify embedded CRCs.
 | 
			
		||||
@item bitstream
 | 
			
		||||
Detect bitstream specification deviations.
 | 
			
		||||
@item buffer
 | 
			
		||||
Detect improper bitstream length.
 | 
			
		||||
@item explode
 | 
			
		||||
Abort decoding on minor error detection.
 | 
			
		||||
@item careful
 | 
			
		||||
Consider things that violate the spec and have not been seen in the
 | 
			
		||||
wild as errors.
 | 
			
		||||
@item compliant
 | 
			
		||||
Consider all spec non compliancies as errors.
 | 
			
		||||
@item aggressive
 | 
			
		||||
Consider things that a sane encoder should not do as an error.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@item max_interleave_delta @var{integer} (@emph{output})
 | 
			
		||||
Set maximum buffering duration for interleaving. The duration is
 | 
			
		||||
expressed in microseconds, and defaults to 1000000 (1 second).
 | 
			
		||||
 | 
			
		||||
To ensure all the streams are interleaved correctly, libavformat will
 | 
			
		||||
wait until it has at least one packet for each stream before actually
 | 
			
		||||
writing any packets to the output file. When some streams are
 | 
			
		||||
"sparse" (i.e. there are large gaps between successive packets), this
 | 
			
		||||
can result in excessive buffering.
 | 
			
		||||
 | 
			
		||||
This field specifies the maximum difference between the timestamps of the
 | 
			
		||||
first and the last packet in the muxing queue, above which libavformat
 | 
			
		||||
will output a packet regardless of whether it has queued a packet for all
 | 
			
		||||
the streams.
 | 
			
		||||
 | 
			
		||||
If set to 0, libavformat will continue buffering packets until it has
 | 
			
		||||
a packet for each stream, regardless of the maximum timestamp
 | 
			
		||||
difference between the buffered packets.
 | 
			
		||||
 | 
			
		||||
@item use_wallclock_as_timestamps @var{integer} (@emph{input})
 | 
			
		||||
Use wallclock as timestamps.
 | 
			
		||||
 | 
			
		||||
@item avoid_negative_ts @var{integer} (@emph{output})
 | 
			
		||||
 | 
			
		||||
Possible values:
 | 
			
		||||
@table @samp
 | 
			
		||||
@item make_non_negative
 | 
			
		||||
Shift timestamps to make them non-negative.
 | 
			
		||||
Also note that this affects only leading negative timestamps, and not
 | 
			
		||||
non-monotonic negative timestamps.
 | 
			
		||||
@item make_zero
 | 
			
		||||
Shift timestamps so that the first timestamp is 0.
 | 
			
		||||
@item auto (default)
 | 
			
		||||
Enables shifting when required by the target format.
 | 
			
		||||
@item disabled
 | 
			
		||||
Disables shifting of timestamp.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
When shifting is enabled, all output timestamps are shifted by the
 | 
			
		||||
same amount. Audio, video, and subtitles desynching and relative
 | 
			
		||||
timestamp differences are preserved compared to how they would have
 | 
			
		||||
been without shifting.
 | 
			
		||||
 | 
			
		||||
@item skip_initial_bytes @var{integer} (@emph{input})
 | 
			
		||||
Set number of bytes to skip before reading header and frames if set to 1.
 | 
			
		||||
Default is 0.
 | 
			
		||||
 | 
			
		||||
@item correct_ts_overflow @var{integer} (@emph{input})
 | 
			
		||||
Correct single timestamp overflows if set to 1. Default is 1.
 | 
			
		||||
 | 
			
		||||
@item flush_packets @var{integer} (@emph{output})
 | 
			
		||||
Flush the underlying I/O stream after each packet. Default 1 enables it, and
 | 
			
		||||
has the effect of reducing the latency; 0 disables it and may slightly
 | 
			
		||||
increase performance in some cases.
 | 
			
		||||
 | 
			
		||||
@item output_ts_offset @var{offset} (@emph{output})
 | 
			
		||||
Set the output time offset.
 | 
			
		||||
 | 
			
		||||
@var{offset} must be a time duration specification,
 | 
			
		||||
see @ref{time duration syntax,,the Time duration section in the ffmpeg-utils(1) manual,ffmpeg-utils}.
 | 
			
		||||
 | 
			
		||||
The offset is added by the muxer to the output timestamps.
 | 
			
		||||
 | 
			
		||||
Specifying a positive offset means that the corresponding streams are
 | 
			
		||||
delayed bt the time duration specified in @var{offset}. Default value
 | 
			
		||||
is @code{0} (meaning that no offset is applied).
 | 
			
		||||
 | 
			
		||||
@item format_whitelist @var{list} (@emph{input})
 | 
			
		||||
"," separated List of allowed demuxers. By default all are allowed.
 | 
			
		||||
 | 
			
		||||
@item dump_separator @var{string} (@emph{input})
 | 
			
		||||
Separator used to separate the fields printed on the command line about the
 | 
			
		||||
Stream parameters.
 | 
			
		||||
For example to separate the fields with newlines and indention:
 | 
			
		||||
@example
 | 
			
		||||
ffprobe -dump_separator "
 | 
			
		||||
                          "  -i ~/videos/matrixbench_mpeg2.mpg
 | 
			
		||||
@end example
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
@c man end FORMAT OPTIONS
 | 
			
		||||
 | 
			
		||||
@anchor{Format stream specifiers}
 | 
			
		||||
@section Format stream specifiers
 | 
			
		||||
 | 
			
		||||
Format stream specifiers allow selection of one or more streams that
 | 
			
		||||
match specific properties.
 | 
			
		||||
 | 
			
		||||
Possible forms of stream specifiers are:
 | 
			
		||||
@table @option
 | 
			
		||||
@item @var{stream_index}
 | 
			
		||||
Matches the stream with this index.
 | 
			
		||||
 | 
			
		||||
@item @var{stream_type}[:@var{stream_index}]
 | 
			
		||||
@var{stream_type} is one of following: 'v' for video, 'a' for audio,
 | 
			
		||||
's' for subtitle, 'd' for data, and 't' for attachments. If
 | 
			
		||||
@var{stream_index} is given, then it matches the stream number
 | 
			
		||||
@var{stream_index} of this type. Otherwise, it matches all streams of
 | 
			
		||||
this type.
 | 
			
		||||
 | 
			
		||||
@item p:@var{program_id}[:@var{stream_index}]
 | 
			
		||||
If @var{stream_index} is given, then it matches the stream with number
 | 
			
		||||
@var{stream_index} in the program with the id
 | 
			
		||||
@var{program_id}. Otherwise, it matches all streams in the program.
 | 
			
		||||
 | 
			
		||||
@item #@var{stream_id}
 | 
			
		||||
Matches the stream by a format-specific ID.
 | 
			
		||||
@end table
 | 
			
		||||
 | 
			
		||||
The exact semantics of stream specifiers is defined by the
 | 
			
		||||
@code{avformat_match_stream_specifier()} function declared in the
 | 
			
		||||
@file{libavformat/avformat.h} header.
 | 
			
		||||
 | 
			
		||||
@ifclear config-writeonly
 | 
			
		||||
@include demuxers.texi
 | 
			
		||||
@end ifclear
 | 
			
		||||
@ifclear config-readonly
 | 
			
		||||
@include muxers.texi
 | 
			
		||||
@end ifclear
 | 
			
		||||
@include metadata.texi
 | 
			
		||||
							
								
								
									
										219
									
								
								doc/general.texi
									
									
									
									
									
								
							
							
						
						
									
										219
									
								
								doc/general.texi
									
									
									
									
									
								
							@@ -1,5 +1,4 @@
 | 
			
		||||
\input texinfo @c -*- texinfo -*-
 | 
			
		||||
@documentencoding UTF-8
 | 
			
		||||
 | 
			
		||||
@settitle General Documentation
 | 
			
		||||
@titlepage
 | 
			
		||||
@@ -25,7 +24,7 @@ instructions.  To enable using OpenJPEG in FFmpeg, pass @code{--enable-libopenjp
 | 
			
		||||
@file{./configure}.
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
@section OpenCORE, VisualOn, and Fraunhofer libraries
 | 
			
		||||
@section OpenCORE and VisualOn libraries
 | 
			
		||||
 | 
			
		||||
Spun off Google Android sources, OpenCore, VisualOn and Fraunhofer
 | 
			
		||||
libraries provide encoders for a number of audio codecs.
 | 
			
		||||
@@ -33,14 +32,9 @@ libraries provide encoders for a number of audio codecs.
 | 
			
		||||
@float NOTE
 | 
			
		||||
OpenCORE and VisualOn libraries are under the Apache License 2.0
 | 
			
		||||
(see @url{http://www.apache.org/licenses/LICENSE-2.0} for details), which is
 | 
			
		||||
incompatible to the LGPL version 2.1 and GPL version 2. You have to
 | 
			
		||||
incompatible with the LGPL version 2.1 and GPL version 2. You have to
 | 
			
		||||
upgrade FFmpeg's license to LGPL version 3 (or if you have enabled
 | 
			
		||||
GPL components, GPL version 3) by passing @code{--enable-version3} to configure in
 | 
			
		||||
order to use it.
 | 
			
		||||
 | 
			
		||||
The Fraunhofer AAC library is licensed under a license incompatible to the GPL
 | 
			
		||||
and is not known to be compatible to the LGPL. Therefore, you have to pass
 | 
			
		||||
@code{--enable-nonfree} to configure to use it.
 | 
			
		||||
GPL components, GPL version 3) to use it.
 | 
			
		||||
@end float
 | 
			
		||||
 | 
			
		||||
@subsection OpenCORE AMR
 | 
			
		||||
@@ -95,28 +89,12 @@ Then pass @code{--enable-libtwolame} to configure to enable it.
 | 
			
		||||
 | 
			
		||||
@section libvpx
 | 
			
		||||
 | 
			
		||||
FFmpeg can make use of the libvpx library for VP8/VP9 encoding.
 | 
			
		||||
FFmpeg can make use of the libvpx library for VP8 encoding.
 | 
			
		||||
 | 
			
		||||
Go to @url{http://www.webmproject.org/} and follow the instructions for
 | 
			
		||||
installing the library. Then pass @code{--enable-libvpx} to configure to
 | 
			
		||||
enable it.
 | 
			
		||||
 | 
			
		||||
@section libwavpack
 | 
			
		||||
 | 
			
		||||
FFmpeg can make use of the libwavpack library for WavPack encoding.
 | 
			
		||||
 | 
			
		||||
Go to @url{http://www.wavpack.com/} and follow the instructions for
 | 
			
		||||
installing the library. Then pass @code{--enable-libwavpack} to configure to
 | 
			
		||||
enable it.
 | 
			
		||||
 | 
			
		||||
@section OpenH264
 | 
			
		||||
 | 
			
		||||
FFmpeg can make use of the OpenH264 library for H.264 encoding.
 | 
			
		||||
 | 
			
		||||
Go to @url{http://www.openh264.org/} and follow the instructions for
 | 
			
		||||
installing the library. Then pass @code{--enable-libopenh264} to configure to
 | 
			
		||||
enable it.
 | 
			
		||||
 | 
			
		||||
@section x264
 | 
			
		||||
 | 
			
		||||
FFmpeg can make use of the x264 library for H.264 encoding.
 | 
			
		||||
@@ -131,28 +109,6 @@ x264 is under the GNU Public License Version 2 or later
 | 
			
		||||
details), you must upgrade FFmpeg's license to GPL in order to use it.
 | 
			
		||||
@end float
 | 
			
		||||
 | 
			
		||||
@section x265
 | 
			
		||||
 | 
			
		||||
FFmpeg can make use of the x265 library for HEVC encoding.
 | 
			
		||||
 | 
			
		||||
Go to @url{http://x265.org/developers.html} and follow the instructions
 | 
			
		||||
for installing the library. Then pass @code{--enable-libx265} to configure
 | 
			
		||||
to enable it.
 | 
			
		||||
 | 
			
		||||
@float NOTE
 | 
			
		||||
x265 is under the GNU Public License Version 2 or later
 | 
			
		||||
(see @url{http://www.gnu.org/licenses/old-licenses/gpl-2.0.html} for
 | 
			
		||||
details), you must upgrade FFmpeg's license to GPL in order to use it.
 | 
			
		||||
@end float
 | 
			
		||||
 | 
			
		||||
@section kvazaar
 | 
			
		||||
 | 
			
		||||
FFmpeg can make use of the kvazaar library for HEVC encoding.
 | 
			
		||||
 | 
			
		||||
Go to @url{https://github.com/ultravideo/kvazaar} and follow the
 | 
			
		||||
instructions for installing the library. Then pass
 | 
			
		||||
@code{--enable-libkvazaar} to configure to enable it.
 | 
			
		||||
 | 
			
		||||
@section libilbc
 | 
			
		||||
 | 
			
		||||
iLBC is a narrowband speech codec that has been made freely available
 | 
			
		||||
@@ -160,56 +116,10 @@ by Google as part of the WebRTC project. libilbc is a packaging friendly
 | 
			
		||||
copy of the iLBC codec. FFmpeg can make use of the libilbc library for
 | 
			
		||||
iLBC encoding and decoding.
 | 
			
		||||
 | 
			
		||||
Go to @url{https://github.com/TimothyGu/libilbc} and follow the instructions for
 | 
			
		||||
Go to @url{https://github.com/dekkers/libilbc} and follow the instructions for
 | 
			
		||||
installing the library. Then pass @code{--enable-libilbc} to configure to
 | 
			
		||||
enable it.
 | 
			
		||||
 | 
			
		||||
@section libzvbi
 | 
			
		||||
 | 
			
		||||
libzvbi is a VBI decoding library which can be used by FFmpeg to decode DVB
 | 
			
		||||
teletext pages and DVB teletext subtitles.
 | 
			
		||||
 | 
			
		||||
Go to @url{http://sourceforge.net/projects/zapping/} and follow the instructions for
 | 
			
		||||
installing the library. Then pass @code{--enable-libzvbi} to configure to
 | 
			
		||||
enable it.
 | 
			
		||||
 | 
			
		||||
@float NOTE
 | 
			
		||||
libzvbi is licensed under the GNU General Public License Version 2 or later
 | 
			
		||||
(see @url{http://www.gnu.org/licenses/old-licenses/gpl-2.0.html} for details),
 | 
			
		||||
you must upgrade FFmpeg's license to GPL in order to use it.
 | 
			
		||||
@end float
 | 
			
		||||
 | 
			
		||||
@section AviSynth
 | 
			
		||||
 | 
			
		||||
FFmpeg can read AviSynth scripts as input. To enable support, pass
 | 
			
		||||
@code{--enable-avisynth} to configure.  The correct headers are
 | 
			
		||||
included in compat/avisynth/, which allows the user to enable support
 | 
			
		||||
without needing to search for these headers themselves.
 | 
			
		||||
 | 
			
		||||
For Windows, supported AviSynth variants are
 | 
			
		||||
@url{http://avisynth.nl, AviSynth 2.6 RC1 or higher} for 32-bit builds and
 | 
			
		||||
@url{http://avs-plus.net, AviSynth+ r1718 or higher} for 32-bit and 64-bit builds.
 | 
			
		||||
 | 
			
		||||
For Linux and OS X, the supported AviSynth variant is
 | 
			
		||||
@url{https://github.com/avxsynth/avxsynth, AvxSynth}.
 | 
			
		||||
 | 
			
		||||
@float NOTE
 | 
			
		||||
AviSynth and AvxSynth are loaded dynamically.  Distributors can build FFmpeg
 | 
			
		||||
with @code{--enable-avisynth}, and the binaries will work regardless of the
 | 
			
		||||
end user having AviSynth or AvxSynth installed - they'll only need to be
 | 
			
		||||
installed to use AviSynth scripts (obviously).
 | 
			
		||||
@end float
 | 
			
		||||
 | 
			
		||||
@section Intel QuickSync Video
 | 
			
		||||
 | 
			
		||||
FFmpeg can use Intel QuickSync Video (QSV) for accelerated encoding and decoding
 | 
			
		||||
of multiple codecs. To use QSV, FFmpeg must be linked against the @code{libmfx}
 | 
			
		||||
dispatcher, which loads the actual decoding libraries.
 | 
			
		||||
 | 
			
		||||
The dispatcher is open source and can be downloaded from
 | 
			
		||||
@url{https://github.com/lu-zero/mfx_dispatch.git}. FFmpeg needs to be configured
 | 
			
		||||
with the @code{--enable-libmfx} option and @code{pkg-config} needs to be able to
 | 
			
		||||
locate the dispatcher's @code{.pc} files.
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
@chapter Supported File Formats, Codecs or Features
 | 
			
		||||
@@ -226,10 +136,6 @@ library:
 | 
			
		||||
@item 4xm                       @tab   @tab X
 | 
			
		||||
    @tab 4X Technologies format, used in some games.
 | 
			
		||||
@item 8088flex TMV              @tab   @tab X
 | 
			
		||||
@item AAX                       @tab   @tab X
 | 
			
		||||
    @tab Audible Enhanced Audio format, used in audiobooks.
 | 
			
		||||
@item AA                        @tab   @tab X
 | 
			
		||||
    @tab Audible Format 2, 3, and 4, used in audiobooks.
 | 
			
		||||
@item ACT Voice                 @tab   @tab X
 | 
			
		||||
    @tab contains G.729 audio
 | 
			
		||||
@item Adobe Filmstrip           @tab X @tab X
 | 
			
		||||
@@ -241,16 +147,13 @@ library:
 | 
			
		||||
    @tab Multimedia format used in game Heart Of Darkness.
 | 
			
		||||
@item Apple HTTP Live Streaming @tab   @tab X
 | 
			
		||||
@item Artworx Data Format       @tab   @tab X
 | 
			
		||||
@item ADP                       @tab   @tab X
 | 
			
		||||
    @tab Audio format used on the Nintendo Gamecube.
 | 
			
		||||
@item AFC                       @tab   @tab X
 | 
			
		||||
    @tab Audio format used on the Nintendo Gamecube.
 | 
			
		||||
@item APNG                      @tab X @tab X
 | 
			
		||||
@item ASF                       @tab X @tab X
 | 
			
		||||
@item AST                       @tab X @tab X
 | 
			
		||||
    @tab Audio format used on the Nintendo Wii.
 | 
			
		||||
@item AVI                       @tab X @tab X
 | 
			
		||||
@item AviSynth                  @tab   @tab X
 | 
			
		||||
@item AVISynth                  @tab   @tab X
 | 
			
		||||
@item AVR                       @tab   @tab X
 | 
			
		||||
    @tab Audio format used on Mac.
 | 
			
		||||
@item AVS                       @tab   @tab X
 | 
			
		||||
@@ -266,8 +169,6 @@ library:
 | 
			
		||||
    @tab Used in Z and Z95 games.
 | 
			
		||||
@item Brute Force & Ignorance   @tab   @tab X
 | 
			
		||||
    @tab Used in the game Flash Traffic: City of Angels.
 | 
			
		||||
@item BFSTM                     @tab   @tab X
 | 
			
		||||
    @tab Audio format used on the Nintendo WiiU (based on BRSTM).
 | 
			
		||||
@item BRSTM                     @tab   @tab X
 | 
			
		||||
    @tab Audio format used on the Nintendo Wii.
 | 
			
		||||
@item BWF                       @tab X @tab X
 | 
			
		||||
@@ -278,13 +179,8 @@ library:
 | 
			
		||||
    @tab Used in the game Cyberia from Interplay.
 | 
			
		||||
@item Delphine Software International CIN @tab   @tab X
 | 
			
		||||
    @tab Multimedia format used by Delphine Software games.
 | 
			
		||||
@item Digital Speech Standard (DSS) @tab   @tab X
 | 
			
		||||
@item Canopus HQ                @tab   @tab X
 | 
			
		||||
@item Canopus HQA               @tab   @tab X
 | 
			
		||||
@item Canopus HQX               @tab   @tab X
 | 
			
		||||
@item CD+G                      @tab   @tab X
 | 
			
		||||
    @tab Video format used by CD+G karaoke disks
 | 
			
		||||
@item Phantom Cine              @tab   @tab X
 | 
			
		||||
@item Commodore CDXL            @tab   @tab X
 | 
			
		||||
    @tab Amiga CD video format
 | 
			
		||||
@item Core Audio Format         @tab X @tab X
 | 
			
		||||
@@ -298,8 +194,6 @@ library:
 | 
			
		||||
@item Deluxe Paint Animation    @tab   @tab X
 | 
			
		||||
@item DFA                       @tab   @tab X
 | 
			
		||||
    @tab This format is used in Chronomaster game
 | 
			
		||||
@item DirectDraw Surface        @tab   @tab X
 | 
			
		||||
@item DSD Stream File (DSF)     @tab   @tab X
 | 
			
		||||
@item DV video                  @tab X @tab X
 | 
			
		||||
@item DXA                       @tab   @tab X
 | 
			
		||||
    @tab This format is used in the non-Windows version of the Feeble Files
 | 
			
		||||
@@ -326,8 +220,6 @@ library:
 | 
			
		||||
@item GXF                       @tab X @tab X
 | 
			
		||||
    @tab General eXchange Format SMPTE 360M, used by Thomson Grass Valley
 | 
			
		||||
         playout servers.
 | 
			
		||||
@item HNM @tab   @tab X
 | 
			
		||||
    @tab Only version 4 supported, used in some games from Cryo Interactive
 | 
			
		||||
@item iCEDraw File              @tab   @tab X
 | 
			
		||||
@item ICO                       @tab X @tab X
 | 
			
		||||
    @tab Microsoft Windows ICO
 | 
			
		||||
@@ -350,11 +242,9 @@ library:
 | 
			
		||||
    @tab Used by Linux Media Labs MPEG-4 PCI boards
 | 
			
		||||
@item LOAS                      @tab   @tab X
 | 
			
		||||
    @tab contains LATM multiplexed AAC audio
 | 
			
		||||
@item LRC                       @tab X @tab X
 | 
			
		||||
@item LVF                       @tab   @tab X
 | 
			
		||||
@item LXF                       @tab   @tab X
 | 
			
		||||
    @tab VR native stream format, used by Leitch/Harris' video servers.
 | 
			
		||||
@item Magic Lantern Video (MLV) @tab   @tab X
 | 
			
		||||
@item Matroska                  @tab X @tab X
 | 
			
		||||
@item Matroska audio            @tab X @tab
 | 
			
		||||
@item FFmpeg metadata           @tab X @tab X
 | 
			
		||||
@@ -380,8 +270,6 @@ library:
 | 
			
		||||
    @tab also known as DVB Transport Stream
 | 
			
		||||
@item MPEG-4                    @tab X @tab X
 | 
			
		||||
    @tab MPEG-4 is a variant of QuickTime.
 | 
			
		||||
@item Mirillis FIC video        @tab   @tab X
 | 
			
		||||
    @tab No cursor rendering.
 | 
			
		||||
@item MIME multipart JPEG       @tab X @tab
 | 
			
		||||
@item MSN TCP webcam            @tab   @tab X
 | 
			
		||||
    @tab Used by MSN Messenger webcam streams.
 | 
			
		||||
@@ -421,7 +309,6 @@ library:
 | 
			
		||||
@item raw H.261                 @tab X @tab X
 | 
			
		||||
@item raw H.263                 @tab X @tab X
 | 
			
		||||
@item raw H.264                 @tab X @tab X
 | 
			
		||||
@item raw HEVC                  @tab X @tab X
 | 
			
		||||
@item raw Ingenient MJPEG       @tab   @tab X
 | 
			
		||||
@item raw MJPEG                 @tab X @tab X
 | 
			
		||||
@item raw MLP                   @tab   @tab X
 | 
			
		||||
@@ -435,7 +322,7 @@ library:
 | 
			
		||||
@item raw Shorten               @tab   @tab X
 | 
			
		||||
@item raw TAK                   @tab   @tab X
 | 
			
		||||
@item raw TrueHD                @tab X @tab X
 | 
			
		||||
@item raw VC-1                  @tab X @tab X
 | 
			
		||||
@item raw VC-1                  @tab   @tab X
 | 
			
		||||
@item raw PCM A-law             @tab X @tab X
 | 
			
		||||
@item raw PCM mu-law            @tab X @tab X
 | 
			
		||||
@item raw PCM signed 8 bit      @tab X @tab X
 | 
			
		||||
@@ -461,13 +348,11 @@ library:
 | 
			
		||||
    @tab File format used by RED Digital cameras, contains JPEG 2000 frames and PCM audio.
 | 
			
		||||
@item RealMedia                 @tab X @tab X
 | 
			
		||||
@item Redirector                @tab   @tab X
 | 
			
		||||
@item RedSpark                  @tab   @tab X
 | 
			
		||||
@item Renderware TeXture Dictionary @tab   @tab X
 | 
			
		||||
@item RL2                       @tab   @tab X
 | 
			
		||||
    @tab Audio and video format used in some games by Entertainment Software Partners.
 | 
			
		||||
@item RPL/ARMovie               @tab   @tab X
 | 
			
		||||
@item Lego Mindstorms RSO       @tab X @tab X
 | 
			
		||||
@item RSD                       @tab   @tab X
 | 
			
		||||
@item RTMP                      @tab X @tab X
 | 
			
		||||
    @tab Output is performed by publishing stream to RTMP server
 | 
			
		||||
@item RTP                       @tab X @tab X
 | 
			
		||||
@@ -494,8 +379,6 @@ library:
 | 
			
		||||
@item Sony Wave64 (W64)         @tab X @tab X
 | 
			
		||||
@item SoX native format         @tab X @tab X
 | 
			
		||||
@item SUN AU format             @tab X @tab X
 | 
			
		||||
@item SUP raw PGS subtitles     @tab   @tab X
 | 
			
		||||
@item TDSC                      @tab   @tab X
 | 
			
		||||
@item Text files                @tab   @tab X
 | 
			
		||||
@item THP                       @tab   @tab X
 | 
			
		||||
    @tab Used on the Nintendo GameCube.
 | 
			
		||||
@@ -503,7 +386,6 @@ library:
 | 
			
		||||
    @tab Tiertex .seq files used in the DOS CD-ROM version of the game Flashback.
 | 
			
		||||
@item True Audio                @tab   @tab X
 | 
			
		||||
@item VC-1 test bitstream       @tab X @tab X
 | 
			
		||||
@item Vidvox Hap                @tab X @tab X
 | 
			
		||||
@item Vivo                      @tab   @tab X
 | 
			
		||||
@item WAV                       @tab X @tab X
 | 
			
		||||
@item WavPack                   @tab X @tab X
 | 
			
		||||
@@ -535,14 +417,12 @@ following image formats are supported:
 | 
			
		||||
@item Name @tab Encoding @tab Decoding @tab Comments
 | 
			
		||||
@item .Y.U.V       @tab X @tab X
 | 
			
		||||
    @tab one raw file per component
 | 
			
		||||
@item Alias PIX    @tab X @tab X
 | 
			
		||||
    @tab Alias/Wavefront PIX image format
 | 
			
		||||
@item animated GIF @tab X @tab X
 | 
			
		||||
@item APNG         @tab X @tab X
 | 
			
		||||
    @tab Only uncompressed GIFs are generated.
 | 
			
		||||
@item BMP          @tab X @tab X
 | 
			
		||||
    @tab Microsoft BMP image
 | 
			
		||||
@item BRender PIX  @tab   @tab X
 | 
			
		||||
    @tab Argonaut BRender 3D engine image format.
 | 
			
		||||
@item PIX          @tab   @tab X
 | 
			
		||||
    @tab PIX is an image format used in the Argonaut BRender engine.
 | 
			
		||||
@item DPX          @tab X @tab X
 | 
			
		||||
    @tab Digital Picture Exchange
 | 
			
		||||
@item EXR          @tab   @tab X
 | 
			
		||||
@@ -578,8 +458,6 @@ following image formats are supported:
 | 
			
		||||
    @tab YUV, JPEG and some extension is not supported yet.
 | 
			
		||||
@item Truevision Targa  @tab X @tab X
 | 
			
		||||
    @tab Targa (.TGA) image format
 | 
			
		||||
@item WebP         @tab E @tab X
 | 
			
		||||
    @tab WebP image format, encoding supported through external library libwebp
 | 
			
		||||
@item XBM  @tab X @tab X
 | 
			
		||||
    @tab X BitMap image format
 | 
			
		||||
@item XFace @tab X @tab X
 | 
			
		||||
@@ -607,7 +485,6 @@ following image formats are supported:
 | 
			
		||||
@item AMV Video              @tab  X  @tab  X
 | 
			
		||||
    @tab Used in Chinese MP3 players.
 | 
			
		||||
@item ANSI/ASCII art         @tab     @tab  X
 | 
			
		||||
@item Apple Intermediate Codec @tab     @tab  X
 | 
			
		||||
@item Apple MJPEG-B          @tab     @tab  X
 | 
			
		||||
@item Apple ProRes           @tab  X  @tab  X
 | 
			
		||||
@item Apple QuickDraw        @tab     @tab  X
 | 
			
		||||
@@ -690,18 +567,12 @@ following image formats are supported:
 | 
			
		||||
    @tab Sorenson H.263 used in Flash
 | 
			
		||||
@item Forward Uncompressed   @tab     @tab  X
 | 
			
		||||
@item Fraps                  @tab     @tab  X
 | 
			
		||||
@item Go2Meeting             @tab     @tab  X
 | 
			
		||||
    @tab fourcc: G2M2, G2M3
 | 
			
		||||
@item Go2Webinar             @tab     @tab  X
 | 
			
		||||
    @tab fourcc: G2M4
 | 
			
		||||
@item H.261                  @tab  X  @tab  X
 | 
			
		||||
@item H.263 / H.263-1996     @tab  X  @tab  X
 | 
			
		||||
@item H.263+ / H.263-1998 / H.263 version 2  @tab  X  @tab  X
 | 
			
		||||
@item H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10  @tab  E  @tab  X
 | 
			
		||||
    @tab encoding supported through external library libx264 and OpenH264
 | 
			
		||||
@item HEVC                   @tab  X  @tab  X
 | 
			
		||||
    @tab encoding supported through external library libx265 and libkvazaar
 | 
			
		||||
@item HNM version 4          @tab     @tab  X
 | 
			
		||||
    @tab encoding supported through external library libx264
 | 
			
		||||
@item H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (VDPAU acceleration)  @tab  E  @tab  X
 | 
			
		||||
@item HuffYUV                @tab  X  @tab  X
 | 
			
		||||
@item HuffYUV FFmpeg variant @tab  X  @tab  X
 | 
			
		||||
@item IBM Ultimotion         @tab     @tab  X
 | 
			
		||||
@@ -732,8 +603,8 @@ following image formats are supported:
 | 
			
		||||
@item LCL (LossLess Codec Library) MSZH  @tab     @tab  X
 | 
			
		||||
@item LCL (LossLess Codec Library) ZLIB  @tab  E  @tab  E
 | 
			
		||||
@item LOCO                   @tab     @tab  X
 | 
			
		||||
@item LucasArts SANM/Smush   @tab     @tab  X
 | 
			
		||||
    @tab Used in LucasArts games / SMUSH animations.
 | 
			
		||||
@item LucasArts Smush        @tab     @tab  X
 | 
			
		||||
    @tab Used in LucasArts games.
 | 
			
		||||
@item lossless MJPEG         @tab  X  @tab  X
 | 
			
		||||
@item Microsoft ATC Screen   @tab     @tab  X
 | 
			
		||||
    @tab Also known as Microsoft Screen 3.
 | 
			
		||||
@@ -753,6 +624,8 @@ following image formats are supported:
 | 
			
		||||
@item Mobotix MxPEG video    @tab     @tab  X
 | 
			
		||||
@item Motion Pixels video    @tab     @tab  X
 | 
			
		||||
@item MPEG-1 video           @tab  X  @tab  X
 | 
			
		||||
@item MPEG-1/2 video XvMC (X-Video Motion Compensation)  @tab     @tab  X
 | 
			
		||||
@item MPEG-1/2 video (VDPAU acceleration)  @tab     @tab  X
 | 
			
		||||
@item MPEG-2 video           @tab  X  @tab  X
 | 
			
		||||
@item MPEG-4 part 2          @tab  X  @tab  X
 | 
			
		||||
    @tab libxvidcore can be used alternatively for encoding.
 | 
			
		||||
@@ -768,12 +641,8 @@ following image formats are supported:
 | 
			
		||||
    @tab fourcc: VP50
 | 
			
		||||
@item On2 VP6                @tab     @tab  X
 | 
			
		||||
    @tab fourcc: VP60,VP61,VP62
 | 
			
		||||
@item On2 VP7                @tab     @tab  X
 | 
			
		||||
    @tab fourcc: VP70,VP71
 | 
			
		||||
@item VP8                    @tab  E  @tab  X
 | 
			
		||||
    @tab fourcc: VP80, encoding supported through external library libvpx
 | 
			
		||||
@item VP9                    @tab  E  @tab  X
 | 
			
		||||
    @tab encoding supported through external library libvpx
 | 
			
		||||
@item Pinnacle TARGA CineWave YUV16 @tab     @tab  X
 | 
			
		||||
    @tab fourcc: Y216
 | 
			
		||||
@item Prores                 @tab     @tab  X
 | 
			
		||||
@@ -799,11 +668,11 @@ following image formats are supported:
 | 
			
		||||
    @tab Texture dictionaries used by the Renderware Engine.
 | 
			
		||||
@item RL2 video              @tab     @tab  X
 | 
			
		||||
    @tab used in some games by Entertainment Software Partners
 | 
			
		||||
@item SGI RLE 8-bit          @tab     @tab  X
 | 
			
		||||
@item Sierra VMD video       @tab     @tab  X
 | 
			
		||||
    @tab Used in Sierra VMD files.
 | 
			
		||||
@item Silicon Graphics Motion Video Compressor 1 (MVC1)  @tab     @tab  X
 | 
			
		||||
@item Silicon Graphics Motion Video Compressor 2 (MVC2)  @tab     @tab  X
 | 
			
		||||
@item Silicon Graphics RLE 8-bit video  @tab     @tab  X
 | 
			
		||||
@item Smacker video          @tab     @tab  X
 | 
			
		||||
    @tab Video encoding used in Smacker.
 | 
			
		||||
@item SMPTE VC-1             @tab     @tab  X
 | 
			
		||||
@@ -865,11 +734,11 @@ following image formats are supported:
 | 
			
		||||
@item Name @tab Encoding @tab Decoding @tab Comments
 | 
			
		||||
@item 8SVX exponential       @tab     @tab  X
 | 
			
		||||
@item 8SVX fibonacci         @tab     @tab  X
 | 
			
		||||
@item AAC+                   @tab  E  @tab  IX
 | 
			
		||||
@item AAC+                   @tab  E  @tab  X
 | 
			
		||||
    @tab encoding supported through external library libaacplus
 | 
			
		||||
@item AAC                    @tab  E  @tab  X
 | 
			
		||||
    @tab encoding supported through external library libfaac and libvo-aacenc
 | 
			
		||||
@item AC-3                   @tab IX  @tab  IX
 | 
			
		||||
@item AC-3                   @tab IX  @tab  X
 | 
			
		||||
@item ADPCM 4X Movie         @tab     @tab  X
 | 
			
		||||
@item ADPCM CDROM XA         @tab     @tab  X
 | 
			
		||||
@item ADPCM Creative Technology @tab     @tab  X
 | 
			
		||||
@@ -900,12 +769,10 @@ following image formats are supported:
 | 
			
		||||
    @tab Used in some Sega Saturn console games.
 | 
			
		||||
@item ADPCM IMA Duck DK4     @tab     @tab  X
 | 
			
		||||
    @tab Used in some Sega Saturn console games.
 | 
			
		||||
@item ADPCM IMA Radical      @tab     @tab  X
 | 
			
		||||
@item ADPCM Microsoft        @tab  X  @tab  X
 | 
			
		||||
@item ADPCM MS IMA           @tab  X  @tab  X
 | 
			
		||||
@item ADPCM Nintendo Gamecube AFC  @tab     @tab  X
 | 
			
		||||
@item ADPCM Nintendo Gamecube DTK  @tab     @tab  X
 | 
			
		||||
@item ADPCM Nintendo THP  @tab     @tab  X
 | 
			
		||||
@item ADPCM Nintendo Gamecube THP  @tab     @tab  X
 | 
			
		||||
@item ADPCM QT IMA           @tab  X  @tab  X
 | 
			
		||||
@item ADPCM SEGA CRI ADX     @tab  X  @tab  X
 | 
			
		||||
    @tab Used in Sega Dreamcast games.
 | 
			
		||||
@@ -913,8 +780,6 @@ following image formats are supported:
 | 
			
		||||
@item ADPCM Sound Blaster Pro 2-bit  @tab     @tab  X
 | 
			
		||||
@item ADPCM Sound Blaster Pro 2.6-bit  @tab     @tab  X
 | 
			
		||||
@item ADPCM Sound Blaster Pro 4-bit  @tab     @tab  X
 | 
			
		||||
@item ADPCM VIMA
 | 
			
		||||
    @tab Used in LucasArts SMUSH animations.
 | 
			
		||||
@item ADPCM Westwood Studios IMA @tab     @tab  X
 | 
			
		||||
    @tab Used in Westwood Studios games like Command and Conquer.
 | 
			
		||||
@item ADPCM Yamaha           @tab  X  @tab  X
 | 
			
		||||
@@ -925,21 +790,18 @@ following image formats are supported:
 | 
			
		||||
@item Amazing Studio PAF Audio @tab     @tab  X
 | 
			
		||||
@item Apple lossless audio   @tab  X  @tab  X
 | 
			
		||||
    @tab QuickTime fourcc 'alac'
 | 
			
		||||
@item ATRAC1                 @tab     @tab  X
 | 
			
		||||
@item ATRAC3                 @tab     @tab  X
 | 
			
		||||
@item ATRAC3+                @tab     @tab  X
 | 
			
		||||
@item Atrac 1                @tab     @tab  X
 | 
			
		||||
@item Atrac 3                @tab     @tab  X
 | 
			
		||||
@item Bink Audio             @tab     @tab  X
 | 
			
		||||
    @tab Used in Bink and Smacker files in many games.
 | 
			
		||||
@item CELT                   @tab     @tab  E
 | 
			
		||||
    @tab decoding supported through external library libcelt
 | 
			
		||||
@item Delphine Software International CIN audio  @tab     @tab  X
 | 
			
		||||
    @tab Codec used in Delphine Software International games.
 | 
			
		||||
@item Digital Speech Standard - Standard Play mode (DSS SP) @tab     @tab  X
 | 
			
		||||
@item Discworld II BMV Audio @tab     @tab  X
 | 
			
		||||
@item COOK                   @tab     @tab  X
 | 
			
		||||
    @tab All versions except 5.1 are supported.
 | 
			
		||||
@item DCA (DTS Coherent Acoustics)  @tab  X  @tab  X
 | 
			
		||||
    @tab supported extensions: XCh, XLL (partially)
 | 
			
		||||
@item DPCM id RoQ            @tab  X  @tab  X
 | 
			
		||||
    @tab Used in Quake III, Jedi Knight 2 and other computer games.
 | 
			
		||||
@item DPCM Interplay         @tab     @tab  X
 | 
			
		||||
@@ -949,10 +811,6 @@ following image formats are supported:
 | 
			
		||||
@item DPCM Sol               @tab     @tab  X
 | 
			
		||||
@item DPCM Xan               @tab     @tab  X
 | 
			
		||||
    @tab Used in Origin's Wing Commander IV AVI files.
 | 
			
		||||
@item DSD (Direct Stream Digitial), least significant bit first  @tab  @tab  X
 | 
			
		||||
@item DSD (Direct Stream Digitial), most significant bit first   @tab  @tab  X
 | 
			
		||||
@item DSD (Direct Stream Digitial), least significant bit first, planar  @tab  @tab  X
 | 
			
		||||
@item DSD (Direct Stream Digitial), most significant bit first, planar   @tab  @tab  X
 | 
			
		||||
@item DSP Group TrueSpeech   @tab     @tab  X
 | 
			
		||||
@item DV audio               @tab     @tab  X
 | 
			
		||||
@item Enhanced AC-3          @tab  X  @tab  X
 | 
			
		||||
@@ -973,18 +831,18 @@ following image formats are supported:
 | 
			
		||||
@item MLP (Meridian Lossless Packing)  @tab     @tab  X
 | 
			
		||||
    @tab Used in DVD-Audio discs.
 | 
			
		||||
@item Monkey's Audio         @tab     @tab  X
 | 
			
		||||
    @tab Only versions 3.97-3.99 are supported.
 | 
			
		||||
@item MP1 (MPEG audio layer 1)  @tab     @tab IX
 | 
			
		||||
@item MP2 (MPEG audio layer 2)  @tab IX  @tab IX
 | 
			
		||||
    @tab encoding supported also through external library TwoLAME
 | 
			
		||||
    @tab libtwolame can be used alternatively for encoding.
 | 
			
		||||
@item MP3 (MPEG audio layer 3)  @tab  E  @tab IX
 | 
			
		||||
    @tab encoding supported through external library LAME, ADU MP3 and MP3onMP4 also supported
 | 
			
		||||
@item MPEG-4 Audio Lossless Coding (ALS)  @tab     @tab  X
 | 
			
		||||
@item Musepack SV7           @tab     @tab  X
 | 
			
		||||
@item Musepack SV8           @tab     @tab  X
 | 
			
		||||
@item Nellymoser Asao        @tab  X  @tab  X
 | 
			
		||||
@item On2 AVC (Audio for Video Codec) @tab     @tab  X
 | 
			
		||||
@item Opus                   @tab  E  @tab  X
 | 
			
		||||
    @tab encoding supported through external library libopus
 | 
			
		||||
@item Opus                   @tab  E  @tab  E
 | 
			
		||||
    @tab supported through external library libopus
 | 
			
		||||
@item PCM A-law              @tab  X  @tab  X
 | 
			
		||||
@item PCM mu-law             @tab  X  @tab  X
 | 
			
		||||
@item PCM signed 8-bit planar  @tab  X  @tab  X
 | 
			
		||||
@@ -1028,7 +886,7 @@ following image formats are supported:
 | 
			
		||||
@item Sierra VMD audio       @tab     @tab  X
 | 
			
		||||
    @tab Used in Sierra VMD files.
 | 
			
		||||
@item Smacker audio          @tab     @tab  X
 | 
			
		||||
@item SMPTE 302M AES3 audio  @tab  X  @tab  X
 | 
			
		||||
@item SMPTE 302M AES3 audio  @tab     @tab  X
 | 
			
		||||
@item Sonic                  @tab  X  @tab  X
 | 
			
		||||
    @tab experimental codec
 | 
			
		||||
@item Sonic lossless         @tab  X  @tab  X
 | 
			
		||||
@@ -1036,7 +894,7 @@ following image formats are supported:
 | 
			
		||||
@item Speex                  @tab  E  @tab  E
 | 
			
		||||
    @tab supported through external library libspeex
 | 
			
		||||
@item TAK (Tom's lossless Audio Kompressor)  @tab     @tab  X
 | 
			
		||||
@item True Audio (TTA)       @tab  X  @tab  X
 | 
			
		||||
@item True Audio (TTA)       @tab     @tab  X
 | 
			
		||||
@item TrueHD                 @tab     @tab  X
 | 
			
		||||
    @tab Used in HD-DVD and Blu-Ray discs.
 | 
			
		||||
@item TwinVQ (VQF flavor)    @tab     @tab  X
 | 
			
		||||
@@ -1044,8 +902,7 @@ following image formats are supported:
 | 
			
		||||
    @tab Used in LucasArts SMUSH animations.
 | 
			
		||||
@item Vorbis                 @tab  E  @tab  X
 | 
			
		||||
    @tab A native but very primitive encoder exists.
 | 
			
		||||
@item Voxware MetaSound      @tab     @tab  X
 | 
			
		||||
@item WavPack                @tab  X  @tab  X
 | 
			
		||||
@item WavPack                @tab     @tab  X
 | 
			
		||||
@item Westwood Audio (SND1)  @tab     @tab  X
 | 
			
		||||
@item Windows Media Audio 1  @tab  X  @tab  X
 | 
			
		||||
@item Windows Media Audio 2  @tab  X  @tab  X
 | 
			
		||||
@@ -1068,7 +925,6 @@ performance on systems without hardware floating point support).
 | 
			
		||||
@item 3GPP Timed Text  @tab   @tab   @tab X @tab X
 | 
			
		||||
@item AQTitle          @tab   @tab X @tab   @tab X
 | 
			
		||||
@item DVB              @tab X @tab X @tab X @tab X
 | 
			
		||||
@item DVB teletext     @tab   @tab X @tab   @tab E
 | 
			
		||||
@item DVD              @tab X @tab X @tab X @tab X
 | 
			
		||||
@item JACOsub          @tab X @tab X @tab   @tab X
 | 
			
		||||
@item MicroDVD         @tab X @tab X @tab   @tab X
 | 
			
		||||
@@ -1078,7 +934,6 @@ performance on systems without hardware floating point support).
 | 
			
		||||
@item PJS (Phoenix)    @tab   @tab X @tab   @tab X
 | 
			
		||||
@item RealText         @tab   @tab X @tab   @tab X
 | 
			
		||||
@item SAMI             @tab   @tab X @tab   @tab X
 | 
			
		||||
@item Spruce format (STL) @tab   @tab X @tab   @tab X
 | 
			
		||||
@item SSA/ASS          @tab X @tab X @tab X @tab X
 | 
			
		||||
@item SubRip (SRT)     @tab X @tab X @tab X @tab X
 | 
			
		||||
@item SubViewer v1     @tab   @tab X @tab   @tab X
 | 
			
		||||
@@ -1086,25 +941,21 @@ performance on systems without hardware floating point support).
 | 
			
		||||
@item TED Talks captions @tab @tab X @tab   @tab X
 | 
			
		||||
@item VobSub (IDX+SUB) @tab   @tab X @tab   @tab X
 | 
			
		||||
@item VPlayer          @tab   @tab X @tab   @tab X
 | 
			
		||||
@item WebVTT           @tab X @tab X @tab X @tab X
 | 
			
		||||
@item WebVTT           @tab   @tab X @tab   @tab X
 | 
			
		||||
@item XSUB             @tab   @tab   @tab X @tab X
 | 
			
		||||
@end multitable
 | 
			
		||||
 | 
			
		||||
@code{X} means that the feature is supported.
 | 
			
		||||
 | 
			
		||||
@code{E} means that support is provided through an external library.
 | 
			
		||||
 | 
			
		||||
@section Network Protocols
 | 
			
		||||
 | 
			
		||||
@multitable @columnfractions .4 .1
 | 
			
		||||
@item Name         @tab Support
 | 
			
		||||
@item file         @tab X
 | 
			
		||||
@item FTP          @tab X
 | 
			
		||||
@item Gopher       @tab X
 | 
			
		||||
@item HLS          @tab X
 | 
			
		||||
@item HTTP         @tab X
 | 
			
		||||
@item HTTPS        @tab X
 | 
			
		||||
@item Icecast      @tab X
 | 
			
		||||
@item MMSH         @tab X
 | 
			
		||||
@item MMST         @tab X
 | 
			
		||||
@item pipe         @tab X
 | 
			
		||||
@@ -1115,9 +966,7 @@ performance on systems without hardware floating point support).
 | 
			
		||||
@item RTMPTE       @tab X
 | 
			
		||||
@item RTMPTS       @tab X
 | 
			
		||||
@item RTP          @tab X
 | 
			
		||||
@item SAMBA        @tab E
 | 
			
		||||
@item SCTP         @tab X
 | 
			
		||||
@item SFTP         @tab E
 | 
			
		||||
@item TCP          @tab X
 | 
			
		||||
@item TLS          @tab X
 | 
			
		||||
@item UDP          @tab X
 | 
			
		||||
@@ -1137,19 +986,17 @@ performance on systems without hardware floating point support).
 | 
			
		||||
@item caca              @tab        @tab X
 | 
			
		||||
@item DV1394            @tab X      @tab
 | 
			
		||||
@item Lavfi virtual device @tab X   @tab
 | 
			
		||||
@item Linux framebuffer @tab X      @tab X
 | 
			
		||||
@item Linux framebuffer @tab X      @tab
 | 
			
		||||
@item JACK              @tab X      @tab
 | 
			
		||||
@item LIBCDIO           @tab X
 | 
			
		||||
@item LIBDC1394         @tab X      @tab
 | 
			
		||||
@item OpenAL            @tab X
 | 
			
		||||
@item OpenGL            @tab        @tab X
 | 
			
		||||
@item OSS               @tab X      @tab X
 | 
			
		||||
@item PulseAudio        @tab X      @tab X
 | 
			
		||||
@item Pulseaudio        @tab X      @tab
 | 
			
		||||
@item SDL               @tab        @tab X
 | 
			
		||||
@item Video4Linux2      @tab X      @tab X
 | 
			
		||||
@item Video4Linux2      @tab X      @tab
 | 
			
		||||
@item VfW capture       @tab X      @tab
 | 
			
		||||
@item X11 grabbing      @tab X      @tab
 | 
			
		||||
@item Win32 grabbing    @tab X      @tab
 | 
			
		||||
@end multitable
 | 
			
		||||
 | 
			
		||||
@code{X} means that input/output is supported.
 | 
			
		||||
 
 | 
			
		||||
@@ -1,10 +1,9 @@
 | 
			
		||||
\input texinfo @c -*- texinfo -*-
 | 
			
		||||
@documentencoding UTF-8
 | 
			
		||||
 | 
			
		||||
@settitle Using Git to develop FFmpeg
 | 
			
		||||
@settitle Using git to develop FFmpeg
 | 
			
		||||
 | 
			
		||||
@titlepage
 | 
			
		||||
@center @titlefont{Using Git to develop FFmpeg}
 | 
			
		||||
@center @titlefont{Using git to develop FFmpeg}
 | 
			
		||||
@end titlepage
 | 
			
		||||
 | 
			
		||||
@top
 | 
			
		||||
@@ -13,9 +12,9 @@
 | 
			
		||||
 | 
			
		||||
@chapter Introduction
 | 
			
		||||
 | 
			
		||||
This document aims in giving some quick references on a set of useful Git
 | 
			
		||||
This document aims in giving some quick references on a set of useful git
 | 
			
		||||
commands. You should always use the extensive and detailed documentation
 | 
			
		||||
provided directly by Git:
 | 
			
		||||
provided directly by git:
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
git --help
 | 
			
		||||
@@ -32,21 +31,22 @@ man git-<command>
 | 
			
		||||
shows information about the subcommand <command>.
 | 
			
		||||
 | 
			
		||||
Additional information could be found on the
 | 
			
		||||
@url{http://gitref.org, Git Reference} website.
 | 
			
		||||
@url{http://gitref.org, Git Reference} website
 | 
			
		||||
 | 
			
		||||
For more information about the Git project, visit the
 | 
			
		||||
@url{http://git-scm.com/, Git website}.
 | 
			
		||||
 | 
			
		||||
@url{http://git-scm.com/, Git website}
 | 
			
		||||
 | 
			
		||||
Consult these resources whenever you have problems, they are quite exhaustive.
 | 
			
		||||
 | 
			
		||||
What follows now is a basic introduction to Git and some FFmpeg-specific
 | 
			
		||||
guidelines to ease the contribution to the project.
 | 
			
		||||
guidelines to ease the contribution to the project
 | 
			
		||||
 | 
			
		||||
@chapter Basics Usage
 | 
			
		||||
 | 
			
		||||
@section Get Git
 | 
			
		||||
@section Get GIT
 | 
			
		||||
 | 
			
		||||
You can get Git from @url{http://git-scm.com/}
 | 
			
		||||
You can get git from @url{http://git-scm.com/}
 | 
			
		||||
Most distribution and operating system provide a package for it.
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
@@ -74,7 +74,6 @@ git config --global core.autocrlf false
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
@anchor{Updating the source tree to the latest revision}
 | 
			
		||||
@section Updating the source tree to the latest revision
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
@@ -107,7 +106,7 @@ git add [-A] <filename/dirname>
 | 
			
		||||
git rm [-r] <filename/dirname>
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
Git needs to get notified of all changes you make to your working
 | 
			
		||||
GIT needs to get notified of all changes you make to your working
 | 
			
		||||
directory that makes files appear or disappear.
 | 
			
		||||
Line moves across files are automatically tracked.
 | 
			
		||||
 | 
			
		||||
@@ -127,8 +126,8 @@ will show all local modifications in your working directory as unified diff.
 | 
			
		||||
git log <filename(s)>
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
You may also use the graphical tools like @command{gitview} or @command{gitk}
 | 
			
		||||
or the web interface available at @url{http://source.ffmpeg.org/}.
 | 
			
		||||
You may also use the graphical tools like gitview or gitk or the web
 | 
			
		||||
interface available at http://source.ffmpeg.org/
 | 
			
		||||
 | 
			
		||||
@section Checking source tree status
 | 
			
		||||
 | 
			
		||||
@@ -149,7 +148,6 @@ git diff --check
 | 
			
		||||
to double check your changes before committing them to avoid trouble later
 | 
			
		||||
on. All experienced developers do this on each and every commit, no matter
 | 
			
		||||
how small.
 | 
			
		||||
 | 
			
		||||
Every one of them has been saved from looking like a fool by this many times.
 | 
			
		||||
It's very easy for stray debug output or cosmetic modifications to slip in,
 | 
			
		||||
please avoid problems through this extra level of scrutiny.
 | 
			
		||||
@@ -172,14 +170,14 @@ to make sure you don't have untracked files or deletions.
 | 
			
		||||
git add [-i|-p|-A] <filenames/dirnames>
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
Make sure you have told Git your name and email address
 | 
			
		||||
Make sure you have told git your name and email address
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
git config --global user.name "My Name"
 | 
			
		||||
git config --global user.email my@@email.invalid
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
Use @option{--global} to set the global configuration for all your Git checkouts.
 | 
			
		||||
Use @var{--global} to set the global configuration for all your git checkouts.
 | 
			
		||||
 | 
			
		||||
Git will select the changes to the files for commit. Optionally you can use
 | 
			
		||||
the interactive or the patch mode to select hunk by hunk what should be
 | 
			
		||||
@@ -210,7 +208,7 @@ include filenames in log messages, Git provides that information.
 | 
			
		||||
 | 
			
		||||
Possibly make the commit message have a terse, descriptive first line, an
 | 
			
		||||
empty line and then a full description. The first line will be used to name
 | 
			
		||||
the patch by @command{git format-patch}.
 | 
			
		||||
the patch by git format-patch.
 | 
			
		||||
 | 
			
		||||
@section Preparing a patchset
 | 
			
		||||
 | 
			
		||||
@@ -301,7 +299,7 @@ the current branch history.
 | 
			
		||||
git commit --amend
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
allows one to amend the last commit details quickly.
 | 
			
		||||
allows to amend the last commit details quickly.
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
git rebase -i origin/master
 | 
			
		||||
@@ -326,14 +324,12 @@ faulty commit disappear from the history.
 | 
			
		||||
@section Pushing changes to remote trees
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
git push origin master --dry-run
 | 
			
		||||
git push
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
Will simulate a push of the local master branch to the default remote
 | 
			
		||||
(@var{origin}). And list which branches and ranges or commits would have been
 | 
			
		||||
pushed.
 | 
			
		||||
Will push the changes to the default remote (@var{origin}).
 | 
			
		||||
Git will prevent you from pushing changes if the local and remote trees are
 | 
			
		||||
out of sync. Refer to @ref{Updating the source tree to the latest revision}.
 | 
			
		||||
out of sync. Refer to and to sync the local tree.
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
git remote add <name> <url>
 | 
			
		||||
@@ -352,24 +348,23 @@ branches matching the local ones.
 | 
			
		||||
 | 
			
		||||
@section Finding a specific svn revision
 | 
			
		||||
 | 
			
		||||
Since version 1.7.1 Git supports @samp{:/foo} syntax for specifying commits
 | 
			
		||||
Since version 1.7.1 git supports @var{:/foo} syntax for specifying commits
 | 
			
		||||
based on a regular expression. see man gitrevisions
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
git show :/'as revision 23456'
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
will show the svn changeset @samp{r23456}. With older Git versions searching in
 | 
			
		||||
will show the svn changeset @var{r23456}. With older git versions searching in
 | 
			
		||||
the @command{git log} output is the easiest option (especially if a pager with
 | 
			
		||||
search capabilities is used).
 | 
			
		||||
 | 
			
		||||
This commit can be checked out with
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
git checkout -b svn_23456 :/'as revision 23456'
 | 
			
		||||
@end example
 | 
			
		||||
 | 
			
		||||
or for Git < 1.7.1 with
 | 
			
		||||
or for git < 1.7.1 with
 | 
			
		||||
 | 
			
		||||
@example
 | 
			
		||||
git checkout -b svn_23456 $SHA1
 | 
			
		||||
@@ -378,7 +373,7 @@ git checkout -b svn_23456 $SHA1
 | 
			
		||||
where @var{$SHA1} is the commit hash from the @command{git log} output.
 | 
			
		||||
 | 
			
		||||
 | 
			
		||||
@chapter Pre-push checklist
 | 
			
		||||
@chapter pre-push checklist
 | 
			
		||||
 | 
			
		||||
Once you have a set of commits that you feel are ready for pushing,
 | 
			
		||||
work through the following checklist to doublecheck everything is in
 | 
			
		||||
@@ -389,7 +384,7 @@ Apply your common sense, but if in doubt, err on the side of caution.
 | 
			
		||||
First, make sure that the commits and branches you are going to push
 | 
			
		||||
match what you want pushed and that nothing is missing, extraneous or
 | 
			
		||||
wrong. You can see what will be pushed by running the git push command
 | 
			
		||||
with @option{--dry-run} first. And then inspecting the commits listed with
 | 
			
		||||
with --dry-run first. And then inspecting the commits listed with
 | 
			
		||||
@command{git log -p 1234567..987654}. The @command{git status} command
 | 
			
		||||
may help in finding local changes that have been forgotten to be added.
 | 
			
		||||
 | 
			
		||||
@@ -398,7 +393,7 @@ Next let the code pass through a full run of our testsuite.
 | 
			
		||||
@itemize
 | 
			
		||||
@item @command{make distclean}
 | 
			
		||||
@item @command{/path/to/ffmpeg/configure}
 | 
			
		||||
@item @command{make fate}
 | 
			
		||||
@item @command{make check}
 | 
			
		||||
@item if fate fails due to missing samples run @command{make fate-rsync} and retry
 | 
			
		||||
@end itemize
 | 
			
		||||
 | 
			
		||||
@@ -416,5 +411,5 @@ recommended.
 | 
			
		||||
 | 
			
		||||
@chapter Server Issues
 | 
			
		||||
 | 
			
		||||
Contact the project admins at @email{root@@ffmpeg.org} if you have technical
 | 
			
		||||
problems with the Git server.
 | 
			
		||||
Contact the project admins @email{root@@ffmpeg.org} if you have technical
 | 
			
		||||
problems with the GIT server.
 | 
			
		||||
 
 | 
			
		||||
Some files were not shown because too many files have changed in this diff Show More
		Reference in New Issue
	
	Block a user