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331 Commits

Author SHA1 Message Date
Michael Niedermayer
e8bf189db2 MAINTAINERS: Remove myself as leader
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit f2c58931e6)

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
2015-07-31 18:35:36 +02:00
Michael Niedermayer
f2a8c429dc update for 1.0.10
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-07-20 19:18:42 +02:00
Michael Niedermayer
3a2c4453f0 avformat/utils: do not wait for packets from discarded streams for genpts
Fixes long loop
Fixes Ticket3208

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 8202c49b43)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-07-13 01:16:09 +02:00
Michael Niedermayer
7b5c706494 avutil/lzo: Fix integer overflow
Embargoed-till: 2014-06-27 requested by researcher, but embargo broken by libav today (git and mailing list)

Fixes: LMS-2014-06-16-4
Found-by: "Don A. Bailey" <donb@securitymouse.com>
See: ccda51b14c
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit d6af26c55c)

Conflicts:

	libavutil/lzo.c
2014-06-23 15:16:47 +02:00
Xi Wang
ff712a262d lzo: fix overflow checking in copy_backptr()
The check `src > dst' in the form `&c->out[-back] > c->out' invokes
pointer overflow, which is undefined behavior in C.

Remove the check.  Also replace `&c->out[-back] < c->out_start' with
a safe form `c->out - c->out_start < back' to avoid overflow.

CC: libav-stable@libav.org

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
(cherry picked from commit ca6c3f2c53)

Conflicts:

	libavutil/lzo.c
2014-06-23 15:15:52 +02:00
Michael Niedermayer
8f443e4f32 avformat/mpc: attempt to allocate a packet that is not smaller than the data inside it
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 86a9370e2b)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-23 15:14:41 +02:00
Michael Niedermayer
f48d7abf40 avcodec/alsdec: Clear MPEG4AudioConfig so that no use of uninitialized memory is possible
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 6e6bd5481c)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-23 15:14:41 +02:00
Michael Niedermayer
8935e23900 avformat/flvenc: Do not allow creating h263/mpeg4 in flv without unofficial format extensions being enabled.
Found-by: Jean-Baptiste Kempf <jb@videolan.org>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 74760883fc)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-23 15:14:41 +02:00
Michael Niedermayer
a116f16e5d avcodec/libvorbisenc: dont add the duration to AV_NOPTS_VALUE
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 19e66c7232)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-23 15:14:41 +02:00
Michael Niedermayer
1930efe236 avutil/cpu: force mmx on selection of higher x86 SIMD features
Fixes various runtime failures with manually set flags that represent no
existing CPU

Fixes Ticket3653

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 6310eb8010)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-23 15:14:41 +02:00
Michael Niedermayer
033b0a4e7f avfilter/graphdump: Fix pointer to local outside scope
Fixes CID1194435
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 18af0ce62d)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-23 15:14:41 +02:00
Michael Niedermayer
2277706b35 avcodec/mjpegdec: Fix undefined shift
Fixes CID1194388

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit b432960528)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-23 15:14:40 +02:00
Michael Niedermayer
6b0c1ed116 swresample: fix AV_CH_LAYOUT_STEREO_DOWNMIX input
Fixes Ticket 3542

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 291d464161)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-23 15:14:40 +02:00
Michael Niedermayer
acba4d1e55 avformat/h263dec: Fix h263 probe
The code was missing 1 bit in the src format

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit fc145e576a)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-23 15:14:40 +02:00
Michael Niedermayer
ee0db8a51f avfilter/filtfmts: Support dynamically allocated in/outputs
Fixes crash
Fixes Ticket3468

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 59c7615d58)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-23 15:14:40 +02:00
Michael Niedermayer
8ef02e4e89 avfilter/vf_deshake: fix loss of precission with odd resolutions
Fixes part of Ticket3466
Found-by: Andrey_Karpov / PVS-Studio
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 73734282e0)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-23 15:14:40 +02:00
Michael Niedermayer
43d24fc34c avcodec/g723_1: add assert to help static code analyzers
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 1457f3fd90)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-23 15:14:40 +02:00
Michael Niedermayer
00476d9249 avcodec/diracdec: fix undefined behavior with shifts
Fixes part of Ticket3466
Found-by: Andrey_Karpov / PVS-Studio
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit b8598f6ce6)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-23 15:14:40 +02:00
Michael Niedermayer
f3230ba067 avformat/mpegts: Remove redundant check
Fixes part of Ticket3466
Found-by: Andrey_Karpov / PVS-Studio
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit ff6fa0b4b9)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-23 15:14:40 +02:00
Michael Niedermayer
0443fe2640 avcodec/x86/idct_sse2_xvid: fix non C99 inline function
Found-by: Matt Oliver <protogonoi@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 46d5625f44)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-23 15:14:40 +02:00
Anthoine Bourgeois
b5ec163e5a avcodec/dirac_arith: Fix build with PIC and stack-check options
Fixes Ticket3540

The function dirac_get_arith_bit in libavcodec/dirac_arith.h can't be
built with PIC and check-stack because the asm code needs 6 registers
and PIC and check-stack options take 1 each and x86 is quite limited
in this area.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit d8ab7f31dd)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-23 15:14:40 +02:00
Michael Niedermayer
f80af81e6e swscale/x86/swscale_template: loose hardcoded dstw_offset
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit f6759d9ad4)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-23 15:14:40 +02:00
Michael Niedermayer
d7573f88a9 swresample/resample: use av_malloc_array() where appropriate
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 5027f39712)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-23 15:14:40 +02:00
Michael Niedermayer
b1ac8b1d38 swresample/dither: use av_malloc_array()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit a5290cb1ac)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-23 15:14:40 +02:00
Michael Niedermayer
81e5ce4c28 swresample/resample: Limit filter length
Related to CID1197063

The limit choosen is arbitrary and much larger than what makes sense.
It avoids the need for checking arithmetic operations with the length for overflow

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit f9158b01d0)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-23 15:14:40 +02:00
Michael Niedermayer
12eb9d9111 avcodec/wma: use av_freep(), do not leave stale pointers in memory
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit d167faafe9)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-23 15:14:40 +02:00
Michael Niedermayer
551f36955c avcodec/h264_mp4toannexb_bsf: prepend global headers before any in stream parameter sets
Fixes h264_mp4toannexb_bsf_failure.mkv

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 289b149cec)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-23 15:14:40 +02:00
Michael Niedermayer
5f7e6b9c37 avcodec/x86/mpegvideoenc_template: fix integer overflow
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-23 15:14:40 +02:00
Michael Niedermayer
1ec03662c0 avcodec/h263dec: Fix use of uninitialized memory from the bitstream buffer
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit f07cebcd91)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-23 15:14:40 +02:00
Michael Niedermayer
588ae964f4 swscale/x86/swscale: fix missing xmm clobbers in yuv2yuvX_sse3()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 6c47a4e972)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-23 15:14:40 +02:00
Dale Curtis
85b1ce977b matroska: Fix use after free
Signed-off-by: Dale Curtis <dalecurtis@chromium.org>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
(cherry picked from commit ae3d416369)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-23 15:14:40 +02:00
Michael Niedermayer
0916d0f9d1 vorbisdec: Check bark_map_size.
This fixes potential divisions by zero and out of array accesses.

Reported-by: Dale Curtis <dalecurtis@chromium.org>
Found-by: inferno@chromium.org
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 2c16bf2de0)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-06-23 15:14:40 +02:00
Michael Niedermayer
66c927d217 avformat/matroskadec: support SVQ3 as generated by mkvtoolnix-6.6.0
Fixes part of Ticket3256

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 5800b08572)

Conflicts:
	libavformat/matroskadec.c
2014-04-16 19:54:13 +02:00
Michael Niedermayer
ea66bd0d24 avformat/matroskaenc: wrap V_QUICKTIME codec private in something that looks like its part of quicktime stsd
This is needed for matroska spec compliance
Fixes playback of SVQ3 in matroska with vlc
Fixes Ticket 3256

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 8456bd2c0f)
2014-04-16 19:53:39 +02:00
Michael Niedermayer
be66ae3b01 avformat/mov: fix keyframe flags for sample from chromium Issue 340865
Fixes ticket #3362.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit a0911b0597)
2014-03-24 23:39:37 +01:00
Hendrik Leppkes
519675c49c avformat/mov: only force parsing for video tracks if stss is empty
Fixes playback of some AAC streams, which are otherwise mangled by the
parser, and stss is typically only valid for video anyway.

Fixes a regression since e41ea866.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 019247bdc3)
2014-03-24 23:39:35 +01:00
Michael Niedermayer
08f53e1b14 update for 1.0.9
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-10 13:31:31 +01:00
Michael Niedermayer
8418de295a Merge remote-tracking branch 'TimothyGu/release/1.0' into release/1.0
* TimothyGu/release/1.0:
  configure: use pkg-config to detect libbluray

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-08 16:48:27 +01:00
Michael Niedermayer
e59fe78958 avcodec/utvideoenc: fix slice_bits size
Fixes assertion failure

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 0a8c90202b)

Conflicts:

	libavcodec/utvideoenc.c
(cherry picked from commit 57522ca79cc38c279123596d3288ddbf56fa8903)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-08 16:25:20 +01:00
Michael Niedermayer
a0d15a6271 avcodec/snow: split block clipping checks
Fixes out of array read
Fixes: d4476f68ca1c1c57afbc45806f581963-asan_heap-oob_2266b27_8607_cov_4044577381_snow_chroma_bug.avi
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 61d59703c9)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-08 16:25:20 +01:00
Michael Niedermayer
d7071f6765 avcodec/ansi: fix integer overflow
Fixes out of array read
Fixes: 5f9698e86d92f19bb08d54ff0d57027f-signal_sigsegv_b30756_3795_cov_2693691257_ansi256.ans
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit d42ec8433c)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-08 16:25:20 +01:00
Michael Niedermayer
54b61181ed avcodec/msrle: use av_image_get_linesize() to calculate the linesize
Fixes out of array access
Fixes: 14a74a0a2dc67ede543f0e35d834fbbe-asan_heap-oob_49572c_556_cov_215466444_44_001_engine_room.mov
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit c919e1ca2e)

Conflicts:

	libavcodec/msrle.c
(cherry picked from commit bc1c8ec5e6)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-08 16:25:20 +01:00
Michael Niedermayer
7ad6b66370 avformat/mpegtsenc: Check data array size in mpegts_write_pmt()
Prevents out of array writes

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 842b6c14bc)

Conflicts:

	libavformat/mpegtsenc.c
(cherry picked from commit e87de3f50b765134588d0b048c32ed4b8acc16fb)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-08 16:25:20 +01:00
Michael Niedermayer
b9bf17c55a avcodec/wmalosslessdec: fix mclms_coeffs* array size
Fixes corruption of context
Fixes: 8835659dde6a4f7dcdf341de6a45c6c8-signal_sigsegv_1dce67b_4564_cov_2504444599_classical_22_16_1_14000_v3c_0_extend_0_29.wma
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit ec9578d54d)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-08 16:25:20 +01:00
Justin Ruggles
0e551aa966 samplefmt: avoid integer overflow in av_samples_get_buffer_size()
CC:libav-stable@libav.org
(cherry picked from commit 0e830094ad)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-08 16:25:20 +01:00
Michael Niedermayer
5b38967745 avcodec/vc1: reset fcm/field_mode in non advanced header parsing
Fixes NULL pointer dereference
Fixes: signal_sigsegv_1ab8bf4_2847_cov_4254117347_SA10091.vc1
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit b51e935477)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-08 16:25:20 +01:00
Michael Niedermayer
87c203ba26 avcodec/vmnc: Check that rectangles are within the picture
Prevents out of array accesses with CODEC_FLAG_EMU_EDGE

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 6ba02602aa)

Conflicts:

	libavcodec/vmnc.c

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 7c17207ab9)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-08 16:25:20 +01:00
Michael Niedermayer
617fecbe0f dnxhdenc: fix mb_rc size
Fixes out of array access with RC_VARIANCE set to 0

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit f1caaa1c61)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-08 16:25:20 +01:00
Michael Niedermayer
e571010c5c cmdutils: update year
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-08 16:25:20 +01:00
Michael Niedermayer
584e15d643 avutil/log: skip IO calls on empty strings
These occur when no context is set for example, thus they are common

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit a044a183a3)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-08 16:25:20 +01:00
Michael Niedermayer
855fe65447 avcodec/jpeglsdec: check err value for ls_get_code_runterm()
Fixes infinite loop
Fixes Ticket3086

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit cc0e47b550)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-08 16:25:20 +01:00
Michael Niedermayer
f83f09bfce avutil/opt: initialize ret
Fixes CID1108610
Fixes use of uninitialized variable

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 2d8ccf0adc)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-08 16:25:20 +01:00
Michael Niedermayer
ba59ab5964 avcodec/avpacket/av_packet_split_side_data: ensure that side data padding is initialized
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 240fd8c96f)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 1e48318802b3caa493a40c0584afc30cc866d9d0)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-08 16:25:20 +01:00
Michael Niedermayer
2448c18676 avfilter/ff_insert_pad: fix order of operations
Fixes out of bounds access
Fixes CID732170
Fixes CID732169

No filter is known to use this function in a way so the issue can be reproduced.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit ab2bfb85d4)

Conflicts:

	libavfilter/avfilter.c
(cherry picked from commit 86591b244f3a27293153896813f5569b49b2f5c0)

Conflicts:

	libavfilter/avfilter.c
(cherry picked from commit 400c4f8fa3fd58951dc3f356b2b00484e3363694)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-08 16:25:20 +01:00
Michael Niedermayer
6f9ae27f51 avcodec/parser: reset indexes on realloc failure
Fixes Ticket2982

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit f31011e9ab)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-08 16:25:20 +01:00
Michael Niedermayer
55ad69e851 avcodec/ffv1enc: update buffer check for 16bps
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 3728603f18)

Conflicts:

	libavcodec/ffv1enc.c
2014-03-08 16:25:20 +01:00
Michael Niedermayer
d7ce013de5 avcodec/truemotion2: Fix av_freep arguments
Fixes null pointer dereference
Fixes Ticket2944

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit c54aa2fb0f)

Conflicts:

	libavcodec/truemotion2.c

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2014-03-08 16:25:20 +01:00
Timothy Gu
cea57b7fe0 configure: use pkg-config to detect libbluray
The current configure fails when static libbluray is compiled with libxml2
support.

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit baa650cc79)
Signed-off-by: Timothy Gu <timothygu99@gmail.com>

Conflicts:
	configure
2014-03-06 17:56:28 -08:00
Martin Storsjö
a4c804d0a2 arm: Don't clobber callee saved registers in scalarproduct
q4-q7/d8-d15 are supposed to not be clobbered by the callee.

CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
(cherry picked from commit d307e408d4)
2013-12-21 10:00:13 +01:00
Michael Niedermayer
e28d96024b avcodec/cabac: force get_cabac to be not inlined
works around bug in gccs inline asm register assignment
Fixes Ticket3177

gcc from 4.4 to 4.6 is affected at least, no non affected gccs known
clang seems not affected

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 0538b29ae8)
2013-12-09 10:39:12 +01:00
Michael Niedermayer
cebad79898 avformat/utils: dont count attached pics toward the probesize
Such pics behave more like headers which we also dont count.
Fixes Ticket3146

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit a8dec360c5)
2013-11-18 15:17:45 +01:00
Clément Bœsch
0227ecc21f build: avoid stdin stall with GNU AS probing.
a758c5e added probing for various tools, such as AS. Unfortunately, GNU
AS is reading stdin with -v, and thus configure is stalled with
configure arguments such as --as=as.

Fixes Ticket #1898.
(cherry picked from commit dbb41f93c1)
2013-11-18 15:17:42 +01:00
Michael Niedermayer
65daa390f8 avformat/utils: do not override pts in h264 when they are provided from the demuxer
Fixes Ticket2143

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 1e5271a9fd)
2013-10-27 19:46:42 +01:00
Michael Niedermayer
946815aa09 avcodec/h264: reduce noisiness of "mmco: unref short failure"
Do not consider it an error if we have no frames and should discard one.
This condition can easily happen when decoding is started from an I frame

Fixes Ticket2811

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 08a8976196)

Conflicts:
	libavcodec/h264_refs.c
2013-10-26 01:22:39 +02:00
Michael Niedermayer
89b5f5f494 avformat/wavdec: Dont trust the fact chunk for PCM
Fixes Ticket3033

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 83fc6c822b)

Conflicts:
	libavformat/wav.c
2013-10-24 11:35:11 +02:00
Michael Niedermayer
3c142c196d avformat/matroskadec: only set r_frame_rate if the value is within reasonable limits
Fixes Ticket2451

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 6853e40106)
2013-10-24 11:27:50 +02:00
Michael Niedermayer
e3b2b884fc avcodec/h264_refs: modify key frame detection heuristic to detect more cases
Fixes Ticket2968

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 5ac6b6028f)

Conflicts:
	libavcodec/h264_refs.c
(cherry picked from commit 6636dd551f)
2013-10-24 11:27:03 +02:00
Michael Niedermayer
1cfcc9ac8e avformat/mov: force parsing of headers if stts is absent
Fixes Ticket2991

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit e41ea866fc)
2013-10-24 11:26:15 +02:00
Paul B Mahol
8b282d9d8b avformat/matroskaenc: remove bogus prores tag
Fixes: ffmpeg -i input -c:v prores output.mkv

Signed-off-by: Paul B Mahol <onemda@gmail.com>
(cherry picked from commit 14851ca5f5)

Conflicts:
	libavformat/matroskaenc.c
2013-09-08 22:39:28 +02:00
Michael Niedermayer
fcd46cfbbd update for 1.0.8
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-09-06 02:53:38 +02:00
Michael Niedermayer
49237131e9 avcodec/mjpegdec: Add some sanity checks to ljpeg_decode_rgb_scan()
These prevent the rgb ljpeg code from being run on parameters that it doesnt
support. No testcase available but it seems possible to trigger these.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 61c68000ed)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-09-05 05:48:15 +02:00
Michael Niedermayer
11586b077e avfilter/vf_fps: make sure the fifo is not empty before using it
Fixes Ticket2905

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit cdd5df8189)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-09-05 03:01:10 +02:00
Michael Niedermayer
e12ada6fd1 avcodec/dsputil: fix signedness in sizeof() comparissions
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 454a11a1c9)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-09-05 03:01:10 +02:00
Carl Eugen Hoyos
7599284ad3 Avoid a deadlock when decoding wma.
Fixes ticket #2925.
(cherry picked from commit ec8a4841f7)
2013-09-02 09:41:14 +02:00
Michael Niedermayer
6b5c4be9e0 avformat/avidec: match first index and first packet size=0 handling
Fixes Ticket2861

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 227a0eb5a9)

Conflicts:
	libavformat/avidec.c
2013-08-31 09:40:29 +02:00
Michael Niedermayer
5bd2b24db3 avcodec/pngdsp: fix (un)signed type in end comparission
Fixes out of array accesses
Fixes Ticket2919

Found_by: ami_stuff
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 86736f59d6)
2013-08-30 23:40:31 +02:00
Michael Niedermayer
f229c59893 jpeg2000: check log2_cblk dimensions
Fixes out of array access
Fixes Ticket2895

Found-by: Piotr Bandurski <ami_stuff@o2.pl>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 9a271a9368)

Conflicts:

	libavcodec/jpeg2000dec.c

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-08-29 01:31:18 +02:00
Michael Niedermayer
7549bcb295 avcodec/rpza: Perform pointer advance and checks before using the pointers
Fixes out of array accesses
Fixes Ticket2850

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 3819db745d)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-08-29 01:29:35 +02:00
Michael Niedermayer
65753697ef avcodec/flashsv: check diff_start/height
Fixes out of array accesses
Fixes Ticket2844

Found-by: ami_stuff
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 880c73cd76)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-08-29 01:29:35 +02:00
Michael Niedermayer
278fbfc6bf avformat/paf: Fix integer overflow and out of array read
Found-by:  Laurent Butti <laurentb@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit f58cd2867a)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-08-29 01:29:35 +02:00
Michael Niedermayer
81ca782663 Merge remote-tracking branch 'jamrial/release/1.0' into release/1.0
* jamrial/release/1.0:
  avformat/matroskadec: check out_samplerate before using it in av_rescale()
  matroskadec: Improve TTA duration calculation
  matroskaenc: simplify mkv_check_tag()
  lavf/matroskaenc: Check for valid metadata before creating tags

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-08-29 00:22:25 +02:00
Michael Niedermayer
51daca6c57 matroska_read_seek: Fix used streams for subtitle index compensation
Might fix Ticket1907 (I have no testcase so i cant test)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 4758e32a6c)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-08-29 00:22:11 +02:00
Stefano Sabatini
23eb5a0269 doc/texi2pod.pl: skip printing chapter names if they are disabled
(cherry picked from commit c838701ce4)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
2013-08-27 09:06:37 -07:00
Stefano Sabatini
cf377add09 doc/texi2pod: rework man inclusion logic
Ignore @c man begin ... @c man end comments, rely on @chapter for marking
the beginning of the various manual top level sections.

This allows us to write markup which is not dependent on the specific
texi2pod.pl implementation.

This change causes a few rendering issues, which will be fixed in further
patches.
(cherry picked from commit ca3d786227)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
2013-08-27 09:06:37 -07:00
Stefano Sabatini
8c4261f411 doc/texi2pod: fix @ref substitution rule, disallow "}" within the fields
Fix potential spurious substitution.
(cherry picked from commit 9167db3829)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
2013-08-27 09:06:37 -07:00
Stefano Sabatini
6002f123bd doc/texi2pod: fix warnings introduced in e7e14bc69a
The variable "$section" was replaced by "$chapter".
(cherry picked from commit c0c06c1bba)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
2013-08-27 09:06:37 -07:00
Luca Barbato
90b73f2567 doc: support multitable in texi2pod
(cherry picked from commit 5ea5ffc9ce)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
2013-08-27 09:06:37 -07:00
Stefano Sabatini
df21807141 doc/texipod: add rule to correctly interpret @ref{ANCHOR,XREF,SECTION_NAME,...}
This allows to name an internal reference in the POD/MAN output.
(cherry picked from commit c499d45c6b)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
2013-08-27 09:06:37 -07:00
Stefano Sabatini
ada4f4f715 doc/texi2pod: correctly handle @url commands in the form @url{URL,...}
Ignore the other arguments, which have not to be processed by the POD
renderer.
(cherry picked from commit 1f9855dbc1)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
2013-08-27 09:06:37 -07:00
Stefano Sabatini
7e017b9cbf doc/texi2pod: add support to @ifhtml and @ifnothtml directives
With these commands it is possible to add HTML and non-HTML snippets,
which will be useful for the "See Also" manual chapters.
(cherry picked from commit f14e248783)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
2013-08-27 09:06:36 -07:00
Nicolas George
deb9fb5257 doc/texi2pod: recognize @table @command.
(cherry picked from commit ee2d6fbc92)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
2013-08-27 09:06:36 -07:00
Stefano Sabatini
bb7f5e153e doc/texi2pod.pl: drop unnecessary rule, which was converting "\," to ","
I cannot find a reason for such a rule, which was resulting in badly
escaped filtergraph snippets.

Fix trac ticket #1610.
(cherry picked from commit ce875a613a)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
2013-08-27 09:06:36 -07:00
Timothy Gu
7364109d25 doc/encoders: Remove reference to "Codec Options" chapter
The chapter is only presented in later release branches.
2013-08-26 16:28:54 -07:00
Michael Niedermayer
167278f377 avformat/matroskadec: check out_samplerate before using it in av_rescale()
Prevent assertion failure with damaged input

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 338f8b2eaf)
2013-08-26 17:53:19 -03:00
Clément Bœsch
b2d6f63ed9 doc: remove mention of fifo filter in the introduction.
It's confusing and not necessary, especially in the introduction.
(cherry picked from commit 80a9297b71)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
2013-08-26 12:01:45 -07:00
Timothy Gu
cdfca17eb2 doc/encoders: add libxvid doc
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
(cherry picked from commit 6b255e5e70)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>

Conflicts:
	doc/encoders.texi
2013-08-26 11:52:25 -07:00
Timothy Gu
2f1370da22 doc/muxers: Add AIFF doc
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
(cherry picked from commit 4ec46b1160)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
2013-08-26 11:51:52 -07:00
Timothy Gu
d616b63039 doc/encoders: alphabetically list the encoders
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
(cherry picked from commit 934df3b037)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>

Conflicts:
	doc/encoders.texi
2013-08-26 11:50:45 -07:00
Timothy Gu
b4bc355523 doc/decoders: Add libopencore-amrwb decoder doc
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>
(cherry picked from commit 83647ace73)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
2013-08-26 11:50:45 -07:00
Timothy Gu
ef5552a410 doc/decoders: Document libopencore-amrnb decoder
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit b43860ee0c)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
2013-08-26 11:50:45 -07:00
Timothy Gu
7c23166dd3 doc/decoders: Document libilbc decoder
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 8cdea50f6e)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
2013-08-26 11:50:44 -07:00
Timothy Gu
cb0707479c doc/decoders: Document libgsm decoder
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit c16496c377)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
2013-08-26 11:50:44 -07:00
Timothy Gu
1c5129c7a0 doc/encoders: Add libopencore-amrnb doc
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 9ead06057a)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
2013-08-26 11:50:44 -07:00
Timothy Gu
ff8e4d7f1b doc/decoders: Document libcelt
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit e358044922)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
2013-08-26 11:50:44 -07:00
Timothy Gu
a191b3dbcc doc/general: Make the license status of the Android libraries clearer
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 6fe419bf73)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
2013-08-26 11:50:44 -07:00
Timothy Gu
277502d109 doc/encoders: Add libvo-amrwbenc doc
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 0ec65aa104)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>

Conflicts:
	doc/encoders.texi
2013-08-26 11:50:44 -07:00
Timothy Gu
245e97ef61 doc/encoders: Add libvo-aacenc doc
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit ba7cb4807f)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
2013-08-26 11:50:44 -07:00
Timothy Gu
4c1544ecc8 doc/encoders: add documentation for libtwolame
(cherry picked from commit ea038b996d)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
2013-08-26 11:50:44 -07:00
Timothy Gu
a697a2795b doc/encoders: Add documentation for libmp3lame
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 4703a345fb)

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
2013-08-26 11:50:41 -07:00
James Almer
fc83cfda36 matroskadec: Improve TTA duration calculation
Calculate the duration as accurately as possible to improve decoding of samples
where the last frame is smaller than the rest.

Signed-off-by: James Almer <jamrial@gmail.com>
Approved-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit af248fa117)
2013-08-25 19:40:58 -03:00
Michael Niedermayer
986b29407c matroskaenc: simplify mkv_check_tag()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 066111bf19)
2013-08-25 19:00:11 -03:00
James Almer
ec86321424 lavf/matroskaenc: Check for valid metadata before creating tags
Tags must have at least one SimpleTag element to be spec conformant.
Updated lavf-mkv and seek-lavf-mkv FATE references as the tests were affected by
this.

Fixes ticket #2785

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 088ed53146)

Conflicts:
	tests/ref/lavf/mkv
	tests/ref/seek/lavf_mkv
2013-08-25 18:59:50 -03:00
Michael Niedermayer
739e236aed swr/rematrix: Fix handling of AV_CH_LAYOUT_STEREO_DOWNMIX output
Fixes Ticket2859

Note, testcases related to the downmix channels are welcome.
(id like to make sure this is working correctly now, as obviously it didnt
 work before ...)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit c56d4dab03)
2013-08-20 18:47:27 +02:00
Michael Niedermayer
3f3993ac0a swr: clean layouts before checking sanity
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 6dfffe9200)
2013-08-20 18:47:25 +02:00
Michael Niedermayer
b416cb979d movenc: ilbc needs audio_vbr set.
Without this the block_align or bitrate value is not available to the decoder

Fixes Ticket2858

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 3d64845600)
2013-08-20 18:47:23 +02:00
Michael Niedermayer
24cff71d02 avcodec/kmvc: fix MV checks
Fixes Ticket2813
Fixes regression since 70b5583

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 3cd8aaa2b2)
2013-07-31 03:01:17 +02:00
Michael Niedermayer
34dfb907b2 avformat/dtsdec: Improve probe, reject things looking like analog signals
Fixes Ticket2810

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 6663205338)

Conflicts:
	libavformat/dtsdec.c
2013-07-26 12:22:28 +02:00
Michael Niedermayer
b8b7373914 Merge remote-tracking branch 'jamrial/release/1.0' into release/1.0
* jamrial/release/1.0:
  oggparseskeleton: avoid header parsing failure
  oggparseskeleton: Replace avpriv_report_missing_feature() with a normal av_log() call
  oggparseskeleton: Fix fisbone header parsing

Merged-by: Michael Niedermayer <michaelni@gmx.at>
2013-07-21 01:17:41 +02:00
Justin Ruggles
d46713cc7e swfdec: do better validation of tag length
Avoids trying to read a packet with 0 or negative size.
Avoids a potential infinite loop due to seeking backwards.

Partially based on a patch by Michael Niedermayer.
(cherry picked from commit e70c5b034c)

Conflicts:

	libavformat/swfdec.c
2013-07-21 01:13:10 +02:00
Michael Niedermayer
9c7c2abad4 swfdec: check lens validity
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit c73685398d)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-07-21 01:13:10 +02:00
Michael Niedermayer
b896c1c98e update all trac links to use the trac subdomain
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-07-21 01:13:10 +02:00
Dale Curtis
858e06aabe avformat/utils: Keep internal and external av_read_frame() packets in sync.
Otherwise, during error conditions, the caller will be left with
dangling pointers to a destructed packet => boom.

BUG=242786
TEST=ffmpeg_regression_tests

Commit slightly simplified by commiter
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit c54a1565f5)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-07-21 01:13:10 +02:00
Michael Niedermayer
03983c3650 avformat/matroskadec: Detect conflicting sample rate/default_duration
Fixes Ticket2508

Thanks-to: Moritz Bunkus
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 6158a3bcdf)
2013-07-16 11:53:33 +02:00
Michael Niedermayer
ec268c24a7 mpeg12dec: avoid reinitialization on PS changes when possible.
Fixes Ticket2574

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 970c8df735)

Conflicts:
	libavcodec/mpeg12dec.c
2013-07-09 00:45:38 +02:00
Michael Niedermayer
be23cee317 oggparseskeleton: avoid header parsing failure
Based on description by James Almer and the xiph wiki

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 9a6e814be7)
2013-07-07 21:38:07 -03:00
James Almer
2d66486b8e oggparseskeleton: Replace avpriv_report_missing_feature() with a normal av_log() call
since there should not be more than one fisbone for a given stream.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 63d7684fef)

Conflicts:
	libavformat/oggparseskeleton.c
2013-07-07 21:37:09 -03:00
James Almer
ddfff76397 oggparseskeleton: Fix fisbone header parsing
start_granule should be applied to the stream referenced in the fisbone packet, not to the
Skeleton stream.
This was broken in d1f05dd183 and produced bogus warnings about
multiple fisbone in the same stream on files with more than one stream.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 3960992f0a)
2013-07-07 21:35:20 -03:00
Michael Niedermayer
40c521aec0 mmsh: dont close context on seeking failure
Fixes Ticket2581

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit b4579a29c7)
2013-07-07 21:42:10 +02:00
Michael Niedermayer
e68b62a014 avformat/mov: Fix duration of fragmented mov
Fixes Ticket2757

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit dc2a13aa80)
2013-07-07 18:45:31 +02:00
Michael Niedermayer
8c5c4adebb libavcodec/x86/mpegvideo: Move mmx functions under HAVE_MMX_INLINE
should fix ticket2755

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 707b2135fd)
2013-07-07 18:45:03 +02:00
Michael Niedermayer
ee829bacde mpegts: only reopen pmt_cb filter if its different from the previous.
Fixes Ticket2632

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit b009267910)
2013-07-07 18:44:48 +02:00
Michael Niedermayer
5fa940d9c7 rmdec: Pass AVIOContext to rm_read_metadata()
Fix null pointer dereference
Fixes Ticket2588

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit bf87908cd8)

Conflicts:
	libavformat/rmdec.c
2013-07-07 18:44:22 +02:00
Hendrik Leppkes
491f2e517d mathops/x86: work around inline asm miscompilation with GCC 4.8.1
The volatile is not required here, and prevents a miscompilation with GCC
4.8.1 when building on x86 with --cpu=i686

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 659df32a9d)
2013-06-24 08:47:20 +02:00
Michael Niedermayer
8d18dbda1e avformat/libmodplug: Reduce the probe score for small input
This ensures that theres enough data for mpeg_probe() to recognize mpeg-ps
Fixes Ticket2583

Based on code by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit c605adbf56)
2013-06-21 01:16:06 +02:00
Carl Eugen Hoyos
dc3ec51601 Autodetect idcin only if audio properties allow decoding.
Fixes ticket #2688.
(cherry picked from commit 06bede95fc)
2013-06-19 23:47:05 +02:00
Michael Niedermayer
2ad70f57a8 swresample/x86/audio_convert: add emms to CONV
Fixes ticket #1874

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit ca2818b881)
2013-06-18 02:53:59 +02:00
Michael Niedermayer
194590dc56 alacenc: Fix missing sign_extend()
Fixes ticket #2497

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 8aea2f05dc)
2013-06-13 00:08:02 +02:00
Claudio Freire
be66531ee2 AAC encoder: Fix rate control on twoloop.
Fixes a case where multichannel bitrate isn't accurately
targetted by psy model alone, never achieving the target bitrate.
Now fixed.

Fixes ticket #2625.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Carl Eugen Hoyos <cehoyos@ag.or.at>
2013-06-02 16:28:35 +02:00
Michael Niedermayer
d70043ea0f h264_cavlc: fix reading skip run
Fixes Ticket2606

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 826b3a75cd)

Conflicts:
	libavcodec/h264_cavlc.c
2013-05-30 23:18:11 +02:00
Michael Niedermayer
71e32a5ea4 avienc: Disallow the first frame to be skiped
Fixes Ticket2386

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit cc0db8cf30)

Conflicts:
	libavformat/avienc.c
2013-05-27 23:54:17 +02:00
Michael Niedermayer
0428594f47 smacker: remove av_clip_int16()
Fixes Ticket2425

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 2211c76287)
2013-05-21 00:01:11 +02:00
Michael Niedermayer
14634f5b69 ffmpeg: free threads on error conditions.
Fixes Ticket2562

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 1a36c756d8)
2013-05-17 23:25:54 +02:00
Michael Niedermayer
663b223258 avidec: dont randomly skip packets for offseting the index
Fixes Ticket2490

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 6c593f1b67)
2013-05-17 22:54:49 +02:00
Michael Niedermayer
2588178669 tree-test: fix printf() types
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 6c49562d79)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-14 01:43:39 +02:00
Michael Niedermayer
12cb64e8d9 tree: fix type used for testing the tree
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 977cb54f94)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-14 01:43:33 +02:00
Michael Niedermayer
ae668a283d update for 1.0.7
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-14 01:37:16 +02:00
Michael Niedermayer
2c66058737 avcodec/cdgraphics: check buffer size before use
Fixes out of array accesses

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit ad002e1a13)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-14 01:30:16 +02:00
Michael Niedermayer
813b3d11e0 sanm: Check dimensions before use
Fixes integer overflow and out of array accesses

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 9dd04f6d8c)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-14 01:30:11 +02:00
Clément Bœsch
29ff1a5f1a cmdutils: avtool -> fftool
(cherry picked from commit 7d8ad6c1fa)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-14 01:29:59 +02:00
Michael Niedermayer
f504049b22 avutil/intfloat_readwrite: include common.h for isinf()
Solution based on rational.c, which uses isinf() too

This should fix compilation with msvc

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit c25224737c)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-14 01:29:45 +02:00
Michael Niedermayer
c446bc31f5 avutil/intfloat_readwrite: avoid comparission with INFINITY, use isinf()
Should fix pgc warning

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit cc6f848dba)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-14 01:29:30 +02:00
Michael Niedermayer
52fa7a8603 avutil/log: Fix context pointer used for get_category()
Fixes calling a random pointer

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 7edb984dd0)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-14 01:29:23 +02:00
Michael Niedermayer
d814b9b51d vmdav: Try to fix unpack_rle()
This fixes out of array accesses
The code prior to this commit could not have worked, thus obviously
was untested. I was also not able to find a valid sample that uses this
code.
This fix is thus only based on the description of the format

If someone has a sample that uses unpack_rle(), please mail me.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit c1f2c4c3b4)

Conflicts:

	libavcodec/vmdav.c

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 0baa0a5a02)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-14 01:29:16 +02:00
Michael Niedermayer
1d285db8a3 mmvideo/mm_decode_intra: check horizontal coordinate too
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit ae2132ac90)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-14 01:29:11 +02:00
Michael Niedermayer
cd24fdad47 mmvideo/mm_decode_inter: check horizontal coordinate too
Fixes out of array accesses

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 8d3c99e825)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-14 01:29:05 +02:00
Michael Niedermayer
ee57bfc47a mjpegdec: fix overlapping memcpy with upscale_v
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit b39fd7d63648442c20671c3e4b357268ec5c49f2)

Conflicts:

	libavcodec/mjpegdec.c

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-14 01:22:27 +02:00
Michael Niedermayer
4a442ac117 avcodec/mpegvideo: Fix edge emu with lowres
Fixes a few green artifacts at the top
Fixes rest of Ticket 2535

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit c67bca2b5a)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-14 01:21:02 +02:00
Michael Niedermayer
d8c4ee6fea avcodec/mpegvideo: Fix block height for lowres 3 interlaced blocks
Fixes green trash
Fixes part of Ticket2535

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit bca50e5cd5)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-14 01:20:57 +02:00
Michael Niedermayer
e32acc455d avcodec/lcldec: Check that dimensions are a multiple of the subsample factors
Other dimensions would not work correctly currently,
also ask for a sample for files that fail this check.

This fixes an integer overflow leading to out of array
accesses.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 1e00bbb10c)

Conflicts:

	libavcodec/lcldec.c

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-14 01:05:59 +02:00
Michael Niedermayer
6f2f754d97 src_movie: fix scanf string
Fixes out of array accesses

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit adaa7743f5)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-14 00:50:54 +02:00
Michael Niedermayer
f072b69f39 xbmdec: fix off by one error in scanf()
Fixes out of array access

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-14 00:50:54 +02:00
Dale Curtis
e489d5c54d Fix heap-buffer-overflow in matroska_parse_block
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 81e85bc95c)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-05-14 00:50:54 +02:00
Carl Eugen Hoyos
5888e656ce Do not read strd chunk in avi files as H264 extradata.
Fixes ticket #2561.
(cherry picked from commit 231b331718)
2013-05-13 14:46:28 +02:00
Reimar Döffinger
9fef5d5553 matroska: set "done" only during resync fail.
Fixes playback of test7.mkv validation test file.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
(cherry picked from commit 762d4335ae)
2013-05-07 10:55:15 +02:00
Carl Eugen Hoyos
6e2fb5cd73 Fix type of shared flac table ff_flac_blocksize_table[].
Fixes ticket #2533.
(cherry picked from commit a07ac1f788)
2013-05-05 20:39:50 +02:00
Michael Niedermayer
aef81fa75d vf_idet: fix free after use
Fixes ticket #2449

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit cac749a551)
2013-04-08 20:29:12 +02:00
Carl Eugen Hoyos
13cf445358 Skip padding in an id3 tag in aiff files.
Fixes ticket #2430.

Reviewed-by: Matthieu Bouron
(cherry picked from commit db2d3a9082)

Conflicts:
	libavformat/aiffdec.c
2013-04-03 23:28:49 +02:00
Paul B Mahol
83d5871cf1 smacker: fix off by one error
Regression since a93b572ae4.

Fixes #2426.

Signed-off-by: Paul B Mahol <onemda@gmail.com>
(cherry picked from commit e3cc92a623)
2013-04-03 15:17:16 +02:00
Carl Eugen Hoyos
bd6e58d5ca Write broken aac frames to mov files instead of skipping them.
Fixes decoding with picky media players.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit b448c0a68d)
2013-04-02 12:50:25 +02:00
Carl Eugen Hoyos
fe995dcd84 Only test the first frame for missing aac_adtstoasc bistream filter.
Many players ignore broken aac frames, so don't abort mov or flv
muxing when encountering one, just print a warning instead.

Fixes ticket #2380.
(cherry picked from commit 1741fece70)
2013-03-27 00:56:35 +01:00
Hendrik Leppkes
9b481654e1 h264: fix parsing of old lossless profile (profile_idc == 144)
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 572781b25f)
2013-03-21 23:57:25 +01:00
Michael Niedermayer
f2310fff5c update the current year
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-21 01:10:47 +01:00
Michael Niedermayer
125fe08492 MAINTAINERS: mention that people are welcome to pick up and maintain older releases
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 7e1efeb570)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-21 01:02:00 +01:00
Michael Niedermayer
e45f0f0f66 MAINTAINERS: update for 1.2
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 80f91a70be)

Conflicts:

	MAINTAINERS
2013-03-21 01:01:53 +01:00
ArnoB
becde6ab1c dpxenc: fix data offset
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 361319d0f4)

Conflicts:

	tests/ref/lavf/dpx
2013-03-20 23:11:26 +01:00
Michael Niedermayer
eeb8dabd29 rmdec: flush audio packet on seeking
Fixes Ticket1605

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 519ebb5ee5)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-20 23:08:46 +01:00
Michael Niedermayer
94576cec54 update for 1.0.6
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-20 20:53:30 +01:00
Andrea3000
2f00d28aa0 matroska: fix missing ,
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 8d8c59480e)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit ef688e7425)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-20 20:52:24 +01:00
Nicolas George
dbe57f7e9f lavfi/avf_concat: fix invalid exclusive test.
The invalid test did not cause any actual problem since
the first branch is only possible with bogus filters.

Fix coverity issue CID 733850.
(cherry picked from commit 709628aa71)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-20 20:51:27 +01:00
Michael Niedermayer
4bee3eba75 doc/ffmpeg: remove non ascii char
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit cdbaaa4f00)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-20 20:49:15 +01:00
David Favor
2440424f1d Slight bug building ffmpeg-1.1.3 on OSX + patch to fix
Two instances of non-ascii characters have crept into file
doc/filters.texi which causes pod2man to error out and
break the build.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit d4d1f32e48)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-20 20:49:14 +01:00
Michael Niedermayer
31f337c1e4 iff: fix integer overflow
Fixes out of array accesses

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 3dbc0ff9c3)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-20 19:59:47 +01:00
Michael Niedermayer
f84ddb0c0f msrledec: fix output_end checks
Fixes out of array accesses

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit e398990eb8)

Conflicts:

	libavcodec/msrledec.c
2013-03-20 19:54:53 +01:00
Michael Niedermayer
bbefdb3938 msrledec: merge switches
More speedup and fixes 'may be used uninitialized in this function' warnings

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit d2e0a276d5)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-20 19:47:03 +01:00
Michael Niedermayer
cc0662daef msrledec: move loop into switch
speeds up code and allows more simplifications

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit dbaae33c2c)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-20 19:46:58 +01:00
Michael Niedermayer
10d59d29bc msrledec: move output pointer test up
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit c2992b7053)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-20 19:46:52 +01:00
Alexander Kojevnikov
7fc39f51cd mp3dec: Fix VBR bit rate parsing
When parsing the Xing/Info tag, don't set the bit rate if it's an Info tag.

When parsing the stream, don't override the bit rate if it's already set,
otherwise calculate the mean bit rate from parsed frames. This way, the bit
rate will be set correctly both for CBR and VBR streams.

Signed-off-by: Alexander Kojevnikov <alexander@kojevnikov.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 29d8cd265a)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-20 15:00:50 +01:00
Carl Eugen Hoyos
f49b2a9d08 Do not (re-)set libx264 parameter b_tff if interlaced encoding was not requested.
Reconfiguring can break x264 lossless encoding.

Fixes ticket #2165.
(cherry picked from commit 75c7e4583f)
2013-03-18 02:15:34 +01:00
Michael Niedermayer
98dfe0d8bd aacsbr: Check for envelope scalefactors overflowing
This prevents various values from becoming stuck at NAN and
output to become silent
If someone knows a cleaner solution, thats welcome!

Fixes Ticket2335

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 8978c743fb)
2013-03-08 20:06:54 +01:00
Michael Niedermayer
08be125dde psymodel: dont apply lowpass filters with a cutoff close to the nyquist
The IIR filter numerically diverges in such cases, this could easily be
fixed but would make the filter slower on some platforms

Fixes Ticket2246

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit fee5da6b0a)
2013-03-07 20:01:37 +01:00
Michael Niedermayer
e20a019c91 avformat: Fix apics with aac
Fixes Ticket2318

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit cada996528)
2013-03-07 15:01:31 +01:00
Michael Niedermayer
16ac9edc2f hls: fix timebase
Fixes Ticket1733

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit a12a618aa9)
2013-03-07 15:01:27 +01:00
Michael Niedermayer
164628e2f7 rtmpproto: increase APP_MAX_LENGTH
Fixes second part of Ticket2292

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit da8ef5ac2f)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-04 00:30:06 +01:00
Michael Niedermayer
044177215e update for 1.0.5
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-04 00:01:57 +01:00
Michael Niedermayer
d034ddcd1f rtmpproto: Check APP_MAX_LENGTH
Fixes Ticket2292

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 02ac3398eb)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-03 03:04:11 +01:00
Michael Niedermayer
676df8c4c7 h264: check that luma and chroma depth match
Fixes out of array access

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit bdeb61ccc6)

Conflicts:

	libavcodec/h264_ps.c
2013-03-03 03:03:52 +01:00
Michael Niedermayer
1ddb0b6fa0 avcodec_decode_audio4: check got_frame_ptr before handling initial skip
Fixes out of array accesses

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 8a6449167a)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-03 03:02:34 +01:00
Michael Niedermayer
e35da91b52 swr: check channel layouts before using them.
Fixes out of array accesses

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 21cd905cd4)

Conflicts:

	libswresample/swresample.c
2013-03-03 03:00:51 +01:00
Michael Niedermayer
82213d67ba shorten: dont leave invalid channel counts in the context.
Fixes freeing invalid addresses

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 4f1279154e)

Conflicts:

	libavcodec/shorten.c
2013-03-03 02:58:29 +01:00
Michael Niedermayer
d17b9469c9 tiff: Check buffer allocation and pointer increment more carefully in shorts2str() and double2str()
Fixes out of array accesses

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit e1219cdaf9)

Conflicts:

	libavcodec/tiff.c
2013-03-03 02:45:08 +01:00
Michael Niedermayer
534c0df6e0 pngdec/filter: dont access out of array elements at the end
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 1ac0fa50ef)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-03 02:41:19 +01:00
Michael Niedermayer
f62537d9f1 sanm: Use the correct height variable in the decoded_size checks
Fixes integer overflow and out of array accesses

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 5260edee7e)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-03 02:41:12 +01:00
Michael Niedermayer
4f873341b4 sanm: add forgotten check for decoded_size in old_codec37()
Fixes out of array accesses

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 365270aec5)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-03-03 02:41:07 +01:00
Carl Eugen Hoyos
857a037945 Require at least three frames to autodetect loas.
(cherry picked from commit a60530e3ee)
2013-03-02 02:05:02 +01:00
Nicolas George
8ffe243c85 lavf/avio: check for : in filenames for protocols.
If the first "special" character in a filename is a comma,
it can introduce protocol options, but only if there is a
colon at the end. Otherwise, it is just a filename with a
comma.

Fix trac ticket #2303.
(cherry picked from commit d9fad53f4b)
2013-03-01 08:56:06 +01:00
James Almer
62e5503407 lavc/bink: Chech for malloc failure
Based on commit 8ab2173ed1
2013-02-25 05:51:25 -03:00
James Almer
e6324ccfbd latmenc: Check for LOAS sync word
Write the packet unaltered if found.

Fixes ticket #1917

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit b454c64e03)
2013-02-25 05:48:14 -03:00
Michael Niedermayer
8cfd33fd35 doc/APIchanges: List merge commit hashes and version numbers
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-25 05:19:34 +01:00
Michael Niedermayer
ab70fa28f6 apichanges: fix 2 wrong hashes
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 2f3bc51228)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-25 05:19:34 +01:00
Michael Niedermayer
3a21007e47 apichanges: Use , instead of / to seperate multiple hashes
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 33d6330652)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-25 05:19:34 +01:00
Michael Niedermayer
5877811b0f apichanges: fix date
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit ad6802f975)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-25 05:19:34 +01:00
Michael Niedermayer
c69709571a doc/APIchanges: fix odd .01 versions
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 9f16cb9e50)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-25 05:19:34 +01:00
Michael Niedermayer
97a740acc5 aac: reconfigure output on pop
Fixes Ticket1918

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 6f77122bf5)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-25 05:19:34 +01:00
Diego Biurrun
02f241d1ed configure: Make warnings from -Wreturn-type fatal errors
These warnings have no false positives and point to serious bugs.
(cherry picked from commit 99853cb8d4)

Conflicts:

	configure

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-25 04:49:46 +01:00
Michael Niedermayer
cc64871bd8 movenc: hotfix, dont store fiel for h264 / mpeg4-asp / dnxhd
Other software does not store it in this case, and the information
is provided by the codec stream

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 405cc0d905)

Conflicts:

	tests/ref/fate/vsynth1-mpeg4
	tests/ref/fate/vsynth2-mpeg4
	tests/ref/lavf/mov
	tests/ref/seek/lavf_mov
	tests/ref/vsynth/vsynth1-dnxhd-1080i
	tests/ref/vsynth/vsynth2-dnxhd-1080i
2013-02-25 04:49:46 +01:00
Michael Niedermayer
fcd0e3235a h264: Detect POC inconsistencies and try to handle them reasonably
Improves the file from Ticket2050

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 985aa0be82)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-25 04:49:46 +01:00
Carl Eugen Hoyos
4c2b6ce26c Fix bits_per_coded_sample when encoding png with frame-level multithreading.
Fixes ticket #2290.
(cherry picked from commit c4dc6c4c86)

Conflicts:
	libavcodec/pngenc.c
2013-02-21 08:59:38 +01:00
Carl Eugen Hoyos
98d06b046d Revert "swfenc: use av_get_audio_frame_duration() instead of AVCodecContext.frame_size"
This reverts commit 620b88a302.

Fixes ticket #2272.

Conflicts:
	libavformat/swfenc.c
(cherry picked from commit 8d0757e107)
2013-02-17 20:33:07 +01:00
Carl Eugen Hoyos
397e769f74 Write the fiel atom to mov files independently of the used video coded.
The QuickTime specification does not contain any hint that the atom
must not be written in some cases and both the QuickTime and the
AVID decoders do not fail if the atom is present.

This change allows to signal (visually) interlaced streams with
a codec different from uncompressed video.

As a side-effect, this fixes ticket #2202
(cherry picked from commit 7d0e3b197c)

Conflicts:
	tests/ref/fate/vsynth1-avui
	tests/ref/fate/vsynth1-dnxhd-1080i
	tests/ref/fate/vsynth1-mpeg4
	tests/ref/fate/vsynth2-avui
	tests/ref/fate/vsynth2-dnxhd-1080i
	tests/ref/fate/vsynth2-mpeg4
	tests/ref/lavf/mov
	tests/ref/seek/lavf_mov
2013-02-14 15:24:13 +01:00
Carl Eugen Hoyos
140ca8f6c0 sws: dont write out of array on bigendian
Fixes Ticket2229

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 4e2c63685e)
2013-02-14 14:39:21 +01:00
Michael Niedermayer
169d849344 h264: Reset last_pocs in case of reference or frame number inconsistencies
This prevents faulty increasing of has_b_frames
Should fix Ticket 2062

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit c230af9bcc)
2013-02-14 09:23:41 +01:00
Michael Niedermayer
9c659b3a67 h264_refs: Print default in case we are missing a reference.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit a39d36146a)
2013-02-14 09:23:35 +01:00
Michael Niedermayer
1690c1fa88 update for 1.0.4
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-07 01:24:35 +01:00
Michael Niedermayer
3f27158040 h264: Only apply error concealment if theres a frame
Without any correctly decoded slices, there can be no frame.

Fixes out of array reads

Found-by: Rafaël Carré
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 60af6c3138)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-07 01:00:02 +01:00
Michael Niedermayer
c459c7b23e aacdec: check channel count
Prevent out of array accesses

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 96f452ac64)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-07 01:00:02 +01:00
Michael Niedermayer
08e2c7a45f vqavideo: check chunk sizes before reading chunks
Fixes out of array writes

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit ab6c9332bf)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-07 01:00:02 +01:00
Michael Niedermayer
89e16e675d sanm: Check decoded_size.
This prevents a buffer overflow in rle_decode()

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 7357ca900e)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-07 01:00:02 +01:00
Michael Niedermayer
4cd1dad91a avcodec_decode_audio: do not trust the channel layout, use the channel count.
Fixes memory corruption

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit d270c32025)

Conflicts:

	libavcodec/utils.c
2013-02-07 01:00:02 +01:00
Michael Niedermayer
3e196e4def error_concealment: Check that the picture is not in a half setup state.
Fixes state becoming inconsistent
Fixes a null pointer dereference

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 23318a5735)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-07 01:00:02 +01:00
Michael Niedermayer
2502914c5f atrac3dec: Check coding mode against channels.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 13451f5520)

Conflicts:

	libavcodec/atrac3.c
2013-02-07 01:00:02 +01:00
Michael Niedermayer
6df0d3e291 alsdec: check block length
Fix writing over the end

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 0ceca269b6)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-07 01:00:02 +01:00
Michael Niedermayer
85a14dbd5d adpcm: fix off by 1 error and out of array access in DK4
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit f18c873ab5)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-07 01:00:02 +01:00
Michael Niedermayer
db0f7f7394 huffyuvdec: Skip len==0 cases
Fixes vlc decoding for hypothetical files that would contain such cases.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 0dfc01c2bb)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-07 01:00:01 +01:00
Michael Niedermayer
b666debffe huffyuvdec: Check init_vlc() return codes.
Prevents out of array writes

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit f67a0d1152)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-07 01:00:01 +01:00
Xi Wang
c3744b415a rtmp: fix buffer overflows in ff_amf_tag_contents()
A negative `size' will bypass FFMIN().  In the subsequent memcpy() call,
`size' will be considered as a large positive value, leading to a buffer
overflow.

Change the type of `size' to unsigned int to avoid buffer overflow, and
simplify overflow checks accordingly.

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 4e692374f7)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-07 01:00:01 +01:00
Xi Wang
7df878ac15 rtmp: fix multiple broken overflow checks
Sanity checks like `data + size >= data_end || data + size < data' are
broken, because `data + size < data' assumes pointer overflow, which is
undefined behavior in C.  Many compilers such as gcc/clang optimize such
checks away.

Use `size < 0 || size >= data_end - data' instead.

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 902cfe2f74)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-07 01:00:01 +01:00
Xi Wang
bc58fe0309 rtpenc: fix overflow checking in avc_mp4_find_startcode()
The check `start + res < start' is broken since pointer overflow is
undefined behavior in C.  Many compilers such as gcc/clang optimize
away this check.

Use `res > end - start' instead.  Also change `res' to unsigned int
to avoid signed left-shift overflow.

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 2f014567cf)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-07 01:00:01 +01:00
Michael Niedermayer
8eda888683 sanm: check image dimensions before using them
Avoids integer overflows and out of array accesses.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 49b729d3af)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-02-07 01:00:01 +01:00
Matthieu Bouron
f3144b0cc6 lavf/mov: skip version and flags attributes in mov_read_chan function
Fixes ticket #1764.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 59d40fc7e6)
2013-02-06 23:29:30 +01:00
Michael Niedermayer
86f072ceb3 ffmpeg: dont allow -flags to override -pass
Fixes Ticket2154

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit ccf9dd00da)
2013-02-06 10:12:20 +01:00
Michael Niedermayer
21185028b4 dvenc: dont fail hard if the timecode is invalid
Instead just dont store the timecode
Fixes Ticket2187

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit f0eacbc760)
2013-02-06 00:17:23 +01:00
Michael Niedermayer
0c2a350762 movtextenc: fix pointer messup and out of array accesses
Fixes Ticket2213

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit b0635e2fcf)
2013-02-06 00:16:04 +01:00
Carl Eugen Hoyos
299dc3baea Do not change codec in flv streams if the user has forced a codec.
Fixes ticket #2218.
(cherry picked from commit 6a50e8a190)
2013-02-01 23:42:12 +01:00
Carl Eugen Hoyos
5c1a1b47f3 doc/muxers.texi: Fix mp3 picture attachment documentation.
(cherry picked from commit 99eedfc400)
2013-02-01 17:57:19 +01:00
Peter Ross
4f8b7eb87f wtvdec: demux thumbnail picture to AVStream.attached_pic
Fixes ticket #2133.

(cherry picked from commit 508836932f)
2013-01-30 09:53:49 +01:00
Carl Eugen Hoyos
d807022283 matroskaenc: add codec_tag lists back.
This reverts 312645e :
"Do not set codec_tag property for matroska muxers."

Also adds dummy codec_tag lists with codecs
supported in mkv but not in wav / avi.

Fixes ticket #2169.
(cherry picked from commit df39c3ce38)
2013-01-24 02:34:16 +01:00
Michael Niedermayer
f7bf3becf6 Update for 1.0.3
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-21 23:27:18 +01:00
Michael Niedermayer
7ca4b91898 h264: fix use of uninitialized variable
Fixed CID968588

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit fc86f88b32)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-21 23:19:49 +01:00
Michael Niedermayer
75aa373bec h264: print mismatching opcode details in check_opcodes()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit dcbe15813e)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-21 23:16:14 +01:00
Michael Niedermayer
bec97981ba h264/ff_generate_sliding_window_mmcos: fix use of uninitialized variable
Fixes CID968587
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 3fba3e79a3)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-21 23:16:06 +01:00
Michael Niedermayer
78526c279f avf_showwaves: fix null pointer dereference
Found-by: durandal_1707
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit e4eebc2da9)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-21 23:15:12 +01:00
Anton Khirnov
5ee483ae62 h264: fix ff_generate_sliding_window_mmcos() prototype.
It's been returning an error value since
bad446e251

Also check for the errors it returns.
(cherry picked from commit ea382767ad)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-21 23:13:45 +01:00
Michael Niedermayer
b006b2f4f5 rtmpproto: Fix assignments in if()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit a601eb9543)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-20 23:04:46 +01:00
Michael Niedermayer
dadf58908c vsrc_testsrc: Fix assignments in if()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 6f88d2d786)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-20 23:04:41 +01:00
Michael Niedermayer
ee8d38191f tiff: Fix assignments in if()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 659546b42d)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-20 23:04:40 +01:00
Michael Niedermayer
f00a9f0003 ra144enc: Fix assignments in if()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit e2704381e5)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-20 23:04:30 +01:00
Michael Niedermayer
1489e67072 nellymoserenc: Fix assignments in if()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 795d2dc23b)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-20 23:04:29 +01:00
Michael Niedermayer
2ff4257e64 libvorbisenc: Fix assignments in if()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit bdd71abe5f)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-20 23:04:28 +01:00
Michael Niedermayer
461907760f libvo-aacenc: Fix assignments in if()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 0ccb31dcad)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-20 23:04:27 +01:00
Michael Niedermayer
d7826b8b9b libspeexenc: Fix assignments in if()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 3b8d66d531)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-20 23:04:26 +01:00
Michael Niedermayer
57211d8a5f libopencore-amr: Fix assignments in if()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit d6180aa297)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-20 23:04:24 +01:00
Michael Niedermayer
3daa086b2e libmp3lame: Fix assignments in if()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 871b6ec01d)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-20 23:04:23 +01:00
Michael Niedermayer
6f2aa8adbf libfdk-aacenc: Fix assignments in if()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 9302ad1ac8)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-20 23:04:21 +01:00
Michael Niedermayer
28ef8eaeef libfaac: Fix assignments in if()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 68a25c64cd)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-20 23:04:20 +01:00
Michael Niedermayer
3e57b37ddb aacenc: Fix assignments in if()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 98fed59427)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-20 23:04:18 +01:00
Michael Niedermayer
04c74a339f update for FFmpeg 1.0.2
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-20 22:27:57 +01:00
Michael Niedermayer
ece68a0363 mpeg1enc: Disable threads for resolutions too large for multi-threading
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 0c6b0409af)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-20 04:25:52 +01:00
Michael Niedermayer
95f8701c32 mpeg12enc: check dimension validity
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 7fb87bc5f2)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-20 02:45:35 +01:00
Michael Niedermayer
5af4171304 mpeg12enc: Correctly mask dimensions
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit bcc4ef1a41)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-20 02:45:34 +01:00
Michael Niedermayer
3e36cba430 mpeg12: Support decoding dimensions that are a multiple of 4096
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 878e5bd6f5)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-20 02:45:33 +01:00
Ronald S. Bultje
d369cc83aa h264: add 3 pixels below for subpixel filter wait position.
If the motion vector is at a subpixel position, we need 3 pixels below
the motion vector's wholepel position available, not 2, since the MC
filter is a sixtap filter for the hpel position, and then a bilin filter
for the qpel position.

This patch fixes highly irreproducible (0.1%) fate failures in frame 2
and 4 of h264-conformance-cama2_vtc_b (e.g. first P-frame, first field,
last line of MB x=40,y=2 and second field and last lines of MBs x=39-40,
y=3). These used pre-loopfilter instead of post-loopfilter data because
the await_progress() waited for one line too little in that field, and
the motion vector of these particular MBs happened to align exactly to a
position where that demonstrates the bug.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 2c85d7c015)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-20 02:43:06 +01:00
Ronald S. Bultje
ac6b2fecf4 h264: don't clobber mmco opcode tables for non-first slice headers.
Clobbering these tables will temporarily clobber the template used
as a basis for other threads to start decoding from. If the other
decoding thread updates from the template right at that moment,
subsequent threads will get invalid (or, usually, none at all) mmco
tables. This leads to invalid reference lists and subsequent decode
failures.

Therefore, instead, decode the mmco tables only for the first slice in
a field or frame. For other slices, decode the bits and ensure they
are identical to the mmco tables in the first slice, but don't ever
clobber the context state. This prevents other threads from using a
clobbered/invalid template as starting point for decoding, and thus
fixes decoding in these cases.

This fixes occasional (~1%) failures of h264-conformance-mr1_bt_a with
frame-multithreading enabled.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit f6badba185)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2013-01-20 02:42:47 +01:00
Michael Niedermayer
bca27b0480 swr: fix handling of timestamps that cause multiple drops or silence injections
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit d676598f87)
2013-01-20 02:40:22 +01:00
Carl Eugen Hoyos
c287efcc44 Only skip MLP header in mpeg files if the codec actually is MLP.
Fixes PCM audio in Kansas Pheasant Hunt 2000 mpg file.
Reported-by: Mashiat Sarker Shakkhar
(cherry picked from commit ad406f7e40)
2013-01-17 17:43:01 +01:00
Carl Eugen Hoyos
aa1af0d6ca Fix detection of struct v4l2_frmsize_discrete.
It was always detected successfully.
(cherry picked from commit c345100efc)
2013-01-17 02:14:29 +01:00
Michael Niedermayer
302d2591dc ff_get_audio_frame_size: try to fix wma in wav
Fixes Ticket1905, Ticket2114

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 2713e43ac8)
2013-01-07 00:55:00 +01:00
Nicolas George
10ac44198d ffmpeg: mark attachment streams finished.
Fix trac ticket #2083.
(cherry picked from commit 69a1667b06)
2013-01-07 00:52:45 +01:00
Piotr Bandurski
7590a125f5 tiffdec: Use the correct height field.
Fixes Ticket913

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 4784a135b2)
2013-01-07 00:25:36 +01:00
Michael Niedermayer
ff08767817 lavf: Fix codec id forcing with probed codecs
Fixes Ticket2088

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 341e40f1e1)
2013-01-02 02:22:04 +01:00
Michael Niedermayer
bc1e72c38e lavf: move force_codec_ids() up
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 3a6b6f425e)
2013-01-02 02:20:53 +01:00
Clément Bœsch
20c121c007 lavc/ass_split: check for NULL pointer in ff_ass_split_override_codes().
This is consistent with the other ff_ass_split_* functions.

It also fixes a crash when trying to split a dialog with text=NULL
(which seems to happen when the text of the dialog is empty); basically,
this commit fixes crashes when trying to encode an empty text subtitle
dialog (see subrip and mov_text encoders).

Fixes Ticket2048.
(cherry picked from commit c83002a4f8)
2013-01-01 18:37:10 +01:00
Hendrik Leppkes
5f95b300c1 mov: fix parsing of the chap atom.
This was broken in 0d96ec19eb under the
assumption that there is only one tref leaf atom.

Fixes Ticket #2081.
(cherry picked from commit 765158dd82)
2013-01-01 17:36:26 +01:00
Clément Bœsch
68e48ed72e lavc/movtextdec: keep the min size instead of max to fix overread.
Fixes Ticket #2087.
(cherry picked from commit 7d66bc7920)
2013-01-01 17:23:43 +01:00
Michael Niedermayer
97ec20a20a mov: fix time types related to mov_metadata_creation_time
Fixes Ticket1817
Based on patch by: Przemyslaw Wesolek <przemyslaw.wesolek@go.art.pl>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit adbb75dbd8)
2012-12-20 12:00:38 +01:00
Michael Niedermayer
553c9c77cc mpeg1video: fix regression with slices != threads
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit a01679586c)
2012-12-13 00:15:52 +01:00
Michael Niedermayer
f44c73f5bb mpeg1video: support multi threaded slice encoding.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 03df972016)

Conflicts:
	libavcodec/mpeg12enc.c
2012-12-13 00:15:12 +01:00
Michael Chinen
59d765e30c flac_parser.c: fix issue with looping output for small files.
see trac 1345
https://ffmpeg.org/trac/ffmpeg/ticket/1345

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit c73b1a1d80)
2012-12-11 00:50:19 +01:00
Michael Niedermayer
dad5b9560a ffplay: Prevent 0/0 aspect from being passed on to lavfi
0/0 fails to be parsed

Fixes Ticket1814
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit a63d7213b3)
2012-12-11 00:49:26 +01:00
Michael Niedermayer
41bcde6021 asfdec: check stream_index for validity
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit b7280cff9a)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-10 23:57:14 +01:00
Michael Niedermayer
e432bd071c asfdec: flip the interpretation of the header aspect back
This reverts 2de8877689

Fixes Ticket 1883

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit e5927910c2)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-10 23:57:14 +01:00
Michael Niedermayer
08d75bf545 asfdec: parse aspect ratio payload extension
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 343c73e252)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-10 23:57:14 +01:00
Michael Niedermayer
19de5478f0 asfdec: correctly parse payload extensions
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 8c93269e42)

Conflicts:

	libavformat/asfdec.c
2012-12-10 23:57:14 +01:00
Michael Niedermayer
3ac97550ce asfdec: parse payload extension list
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 2d8c76eb1f)

Conflicts:

	libavformat/asf.h
2012-12-10 23:57:14 +01:00
Carl Eugen Hoyos
a875a9a833 vqavideo: Reinitialise the actually used partial codebook bytestream-reader.
Fixes ticket #1942.
(cherry picked from commit dd6abc921a)
2012-12-10 01:09:08 +01:00
Michael Niedermayer
73487f7dee avidec: try to support oddly muxed MMES stream
Fixes ticket1804

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit be89693ddc)
2012-12-10 01:06:57 +01:00
Michael Niedermayer
c389ae543a riff: ignore ff_read_riff_info() failure.
Some files simply contain invalid info tags.
Fixes unrelated bug posted into Ticket1821

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 09456d0df1)
2012-12-10 00:36:58 +01:00
Michael Niedermayer
15526ac69f riff: retry reading metadata without padding if it fails with
Fixes Ticket1821

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit d0c27e88d2)
2012-12-10 00:36:41 +01:00
Michael Niedermayer
9929991da7 ffserver: set oformat
Fix Ticket1986

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit cbe43e62c9)
2012-12-10 00:26:56 +01:00
KO Myung-Hun
1b0c1df3b9 lavc: include os2threads.h in vp8.h if HAVE_OS2THREADS is enabled
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 3a45688abc)
2012-12-08 19:52:03 +01:00
Janne Grunau
e31ace670e h264: slice-mt: get last_pic_dropable from master context
Fixes fate-h264-conformance-cvnlfi2_sony_h and smllwebdl.mkv from
https://github.com/OpenELEC/OpenELEC.tv/issues/1557 .
(cherry picked from commit 24c62ea7a5)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-06 16:52:35 +01:00
Nicolas George
e74cd2f470 lavf: compute probe buffer size more reliably.
The previous code computes the offset by reversing the growth
of the allocated buffer size: it is complex and did lead to
inconsistencies when the size limit is reached.

Fix trac ticket #1991.
(cherry picked from commit 03847eb825)

Conflicts:
	libavformat/utils.c
2012-12-05 01:31:50 +01:00
Michael Niedermayer
528700dd58 update for 1.0.1
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-03 21:31:18 +01:00
Michael Niedermayer
e34369e8ec qdm2: check array index before use, fix out of array accesses
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit a7ee6281f7)
2012-12-03 21:03:14 +01:00
Michael Niedermayer
74241de7ed huffyuvdec: check width more completely, avoid out of array accesses
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 6abb9a901f)
2012-12-03 21:03:14 +01:00
Michael Niedermayer
38e8f78c04 roqvideodec: check dimensions validity
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 3ae6104511)
2012-12-03 20:45:45 +01:00
Michael Niedermayer
c82d6e05da h264: correct ref count check and limit, fix out of array accesses.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit d6c184880e)
2012-12-03 20:45:41 +01:00
Michael Niedermayer
c8833a13cf eamad: fix out of array accesses
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 63ac64864c)
2012-12-03 20:45:37 +01:00
Michael Niedermayer
28bf685bfc pgssubdec: check RLE size before copying. Fix out of array accesses
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit c0d68be555)
2012-12-03 20:45:32 +01:00
Michael Niedermayer
c51c5f83c1 wavpack: fix out of array access
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit be818df547)
2012-12-03 20:45:27 +01:00
Michael Niedermayer
12fb647994 mjpegdec: check SE.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-03 20:45:23 +01:00
Michael Niedermayer
c8c9740ee1 alac: fix integer overflow leading to subsequent out of array accesses.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 3920d13878)
2012-12-03 20:45:18 +01:00
Michael Niedermayer
e0884eadf6 alac: fix nb_samples < order case
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit fd4f4923cc)
2012-12-03 20:45:13 +01:00
Michael Niedermayer
112d4c400f iff/ilbm: check remaining buffer size.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 2fbb37b51b)

Conflicts:

	libavcodec/iff.c
2012-12-03 20:44:30 +01:00
Michael Niedermayer
0b9be54e97 tiffdec: check count in metadata reading.
Fixes out of array access

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 6d1c5ea04a)
2012-12-03 20:39:42 +01:00
Michael Niedermayer
18817d4b80 swr: use 64bit index/len for x86_64 mix
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit d23e8f53ad)
2012-12-03 19:36:15 +01:00
Michael Niedermayer
9d9d16b33f mpegvideo enc: choose VBV buffer size for mpeg4 when none is specified instead of failing
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 3556e7ce73)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-03 19:36:15 +01:00
Michael Niedermayer
8b170ee5d8 mpegvideo enc: choose VBV buffer size for mpeg1/2 when none is specified instead of failing
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 1856162caa)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-03 19:36:15 +01:00
Michael Niedermayer
86c8ab1fd8 ffv1: fix array data types
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 106790a4e9)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-03 19:36:15 +01:00
Michael Niedermayer
8c103410a6 movenc: fix regression with yuyv caused by c5f23d
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit ac6659aff7)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-03 19:36:15 +01:00
Michael Niedermayer
5bd5bb9e56 libvorbisenc: fix afq delay setting
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 2c34367b4a)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-03 19:36:15 +01:00
Michael Niedermayer
e2935721e0 aacenc: fix out of array writes
The value used in allocation is based on a estimate of the
maximum size of the spectral coefficients multiplied with 2
and rounded up. The exact or a tighter limit should be
found and used instead. But this issue shouldnt be left
open until someone works on that.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit d56834201b)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-03 19:36:15 +01:00
Martin Ettl
ce433996d7 ffserver: fix potential buffer overflow, based on wrong fscanf format indentifier.
Fixed Ticket1780

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit f077e1fb4c)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-03 19:36:15 +01:00
jamal
e21a53b6eb fate: Fix --disable-zlib
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 062cd9acc1)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-03 19:36:15 +01:00
Michael Niedermayer
7a67a70efa lavf: free probe data in case we close before probing finished
Fixes Ticket1634

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 44a7a6300d)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-03 19:36:15 +01:00
Michael Niedermayer
3be4f230c6 ffv1enc: fix integer overflow with high resolutions and lots of slices.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit f049729e61)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-03 19:36:15 +01:00
Michael Niedermayer
9913ecc68d configure: add missing dependancies for gpl tests
fixes fate without --enable-gpl

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit 4fefe91a33)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-12-03 19:36:15 +01:00
Clément Bœsch
09c79d50d8 lavf/swfdec: fix flushing with compressed swf.
We now only return in the middle of the refill in case of read error, so
inflate can be re-called if zlib needs an empty (z.avail_in=0) inflate
call for flushing.
2012-12-03 16:40:17 +01:00
Michael Niedermayer
a74f292d4a tests/Makefile: fix ffprobe test dependancy
This fixes the ffprobe tests under mingw/wine

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit a96e3a3e77)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-09-28 03:02:28 +02:00
Michael Niedermayer
38df088545 asfenc: avoid negative timestamps
Fixes Ticket1606

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
(cherry picked from commit b4c753487c)

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-09-28 02:47:37 +02:00
Michael Niedermayer
2efbff1db3 Revert "ffprobe: Add a few common disposition cases"
revert requested by ubitux for 1.0

This reverts commit 8e2a950b29.
2012-09-28 02:27:10 +02:00
Michael Niedermayer
f41c9f53de Update for 1.0
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2012-09-28 02:18:32 +02:00
3299 changed files with 134201 additions and 285427 deletions

21
.gitignore vendored
View File

@@ -3,16 +3,10 @@
*.d
*.def
*.dll
*.dylib
*.exe
*.exp
*.gcda
*.gcno
*.h.c
*.ilk
*.lib
*.pc
*.pdb
*.so
*.so.*
*.ver
@@ -26,13 +20,10 @@
/ffprobe
/ffserver
/config.*
/coverage.info
/version.h
/doc/*.1
/doc/*.3
/doc/*.html
/doc/*.pod
/doc/config.texi
/doc/avoptions_codec.texi
/doc/avoptions_format.texi
/doc/examples/decoding_encoding
@@ -41,13 +32,10 @@
/doc/examples/filtering_video
/doc/examples/metadata
/doc/examples/muxing
/doc/examples/pc-uninstalled
/doc/examples/resampling_audio
/doc/examples/scaling_video
/doc/fate.txt
/doc/doxy/html/
/doc/print_options
/lcov/
/doxy/
/libavcodec/*_tablegen
/libavcodec/*_tables.c
/libavcodec/*_tables.h
@@ -57,23 +45,16 @@
/tests/data/
/tests/rotozoom
/tests/tiny_psnr
/tests/tiny_ssim
/tests/videogen
/tests/vsynth1/
/tools/aviocat
/tools/ffbisect
/tools/bisect.need
/tools/crypto_bench
/tools/cws2fws
/tools/fourcc2pixfmt
/tools/ffescape
/tools/ffeval
/tools/ffhash
/tools/graph2dot
/tools/ismindex
/tools/pktdumper
/tools/probetest
/tools/qt-faststart
/tools/trasher
/tools/seek_print
/tools/zmqsend

59
CREDITS
View File

@@ -1,6 +1,55 @@
See the Git history of the project (git://source.ffmpeg.org/ffmpeg) to
get the names of people who have contributed to FFmpeg.
This file contains the names of some of the people who have contributed to
FFmpeg. The names are sorted alphabetically by last name. As this file is
currently quite outdated and git serves as a much better tool for determining
authorship, it remains here for historical reasons only.
To check the log, you can type the command "git log" in the FFmpeg
source directory, or browse the online repository at
http://source.ffmpeg.org.
Dénes Balatoni
Michel Bardiaux
Fabrice Bellard
Patrice Bensoussan
Alex Beregszaszi
BERO
Thilo Borgmann
Mario Brito
Ronald Bultje
Alex Converse
Maarten Daniels
Reimar Doeffinger
Tim Ferguson
Brian Foley
Arpad Gereoffy
Philip Gladstone
Vladimir Gneushev
Roine Gustafsson
David Hammerton
Wolfgang Hesseler
Marc Hoffman
Falk Hueffner
Aurélien Jacobs
Steven Johnson
Zdenek Kabelac
Robin Kay
Todd Kirby
Nick Kurshev
Benjamin Larsson
Loïc Le Loarer
Daniel Maas
Mike Melanson
Loren Merritt
Jeff Muizelaar
Michael Niedermayer
François Revol
Peter Ross
Måns Rullgård
Stefano Sabatini
Roman Shaposhnik
Oded Shimon
Dieter Shirley
Konstantin Shishkov
Juan J. Sierralta
Ewald Snel
Sascha Sommer
Leon van Stuivenberg
Roberto Togni
Lionel Ulmer
Reynaldo Verdejo

217
Changelog
View File

@@ -1,215 +1,10 @@
Entries are sorted chronologically from oldest to youngest within each release,
releases are sorted from youngest to oldest.
version <next>
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 demuxer, HEVC demuxing in TS, Matroska and MP4
- 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
- new 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
- new 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
- SRTP support
- Error diffusion dither in Swscale
- Chained Ogg support
- Theora Midstream reconfiguration support
- EVRC decoder
- audio fade filter
- filtering audio with unknown channel layout
- allpass, bass, bandpass, bandreject, biquad, equalizer, highpass, lowpass
and treble audio filter
- improved showspectrum filter, with multichannel support and sox-like colors
- histogram filter
- tee muxer
- il filter ported from libmpcodecs
- support ID3v2 tags in ASF files
- encrypted TTA stream decoding support
- RF64 support in WAV muxer
- noise filter ported from libmpcodecs
- Subtitles character encoding conversion
- blend filter
- stereo3d filter ported from libmpcodecs
version 1.1:
- stream disposition information printing in ffprobe
- filter for loudness analysis following EBU R128
- Opus encoder using libopus
- ffprobe -select_streams option
- Pinnacle TARGA CineWave YUV16 decoder
- TAK demuxer, decoder and parser
- DTS-HD demuxer
- remove -same_quant, it hasn't worked for years
- FFM2 support
- X-Face image encoder and decoder
- 24-bit FLAC encoding
- multi-channel ALAC encoding up to 7.1
- metadata (INFO tag) support in WAV muxer
- subtitles raw text decoder
- support for building DLLs using MSVC
- LVF demuxer
- ffescape tool
- metadata (info chunk) support in CAF muxer
- field filter ported from libmpcodecs
- AVR demuxer
- geq filter ported from libmpcodecs
- remove ffserver daemon mode
- AST muxer/demuxer
- new expansion syntax for drawtext
- BRender PIX image decoder
- ffprobe -show_entries option
- ffprobe -sections option
- ADPCM IMA Dialogic decoder
- BRSTM demuxer
- animated GIF decoder and demuxer
- PVF demuxer
- subtitles filter
- IRCAM muxer/demuxer
- Paris Audio File demuxer
- Virtual concatenation demuxer
- VobSub demuxer
- JSON captions for TED talks decoding support
- SOX Resampler support in libswresample
- aselect filter
- SGI RLE 8-bit decoder
- Silicon Graphics Motion Video Compressor 1 & 2 decoder
- Silicon Graphics Movie demuxer
- apad filter
- Resolution & pixel format change support with multithreading for H.264
- documentation split into per-component manuals
- pp (postproc) filter ported from MPlayer
- NIST Sphere demuxer
- MPL2, VPlayer, MPlayer, AQTitle, PJS and SubViewer v1 subtitles demuxers and decoders
- Sony Wave64 muxer
- adobe and limelight publisher authentication in RTMP
- data: URI scheme
- support building on the Plan 9 operating system
- kerndeint filter ported from MPlayer
- histeq filter ported from VirtualDub
- Megalux Frame demuxer
- 012v decoder
- Improved AVC Intra decoding support
version next:
version 1.0:
- INI and flat output in ffprobe
- Scene detection in libavfilter
- Indeo Audio decoder
@@ -262,6 +57,8 @@ version 1.0:
- volume measurement filter
- Ut Video encoder
- Microsoft Screen 2 decoder
- Matroska demuxer now identifies SRT subtitles as AV_CODEC_ID_SUBRIP
instead of AV_CODEC_ID_TEXT
- smartblur filter ported from MPlayer
- CPiA decoder
- decimate filter ported from MPlayer
@@ -272,7 +69,6 @@ version 1.0:
- WebVTT demuxer and decoder (simple tags supported)
- RTP packetization of JPEG
- faststart option in the MOV/MP4 muxer
- support for building with MSVC
version 0.11:
@@ -316,7 +112,6 @@ version 0.11:
- vorbis parser
- png parser
- audio mix filter
- ffv1: support (draft) version 1.3
version 0.10:
@@ -656,7 +451,7 @@ 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
@@ -756,7 +551,7 @@ 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
@@ -784,7 +579,7 @@ 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

View File

@@ -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 = 2.1.5
PROJECT_NUMBER = 1.0.10
# 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.
@@ -44,7 +44,7 @@ PROJECT_LOGO =
# If a relative path is entered, it will be relative to the location
# where doxygen was started. If left blank the current directory will be used.
OUTPUT_DIRECTORY = doc/doxy
OUTPUT_DIRECTORY = doxy
# If the CREATE_SUBDIRS tag is set to YES, then doxygen will create
# 4096 sub-directories (in 2 levels) under the output directory of each output
@@ -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.
@@ -288,7 +288,7 @@ TYPEDEF_HIDES_STRUCT = YES
# causing a significant performance penality.
# If the system has enough physical memory increasing the cache will improve the
# performance by keeping more symbols in memory. Note that the value works on
# a logarithmic scale so increasing the size by one will roughly double the
# a logarithmic scale so increasing the size by one will rougly double the
# memory usage. The cache size is given by this formula:
# 2^(16+SYMBOL_CACHE_SIZE). The valid range is 0..9, the default is 0,
# corresponding to a cache size of 2^16 = 65536 symbols
@@ -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
@@ -489,6 +489,12 @@ MAX_INITIALIZER_LINES = 30
SHOW_USED_FILES = YES
# If the sources in your project are distributed over multiple directories
# then setting the SHOW_DIRECTORIES tag to YES will show the directory hierarchy
# in the documentation. The default is NO.
SHOW_DIRECTORIES = NO
# Set the SHOW_FILES tag to NO to disable the generation of the Files page.
# This will remove the Files entry from the Quick Index and from the
# Folder Tree View (if specified). The default is YES.
@@ -639,14 +645,15 @@ EXCLUDE_SYMBOLS =
# directories that contain example code fragments that are included (see
# the \include command).
EXAMPLE_PATH = doc/examples/
EXAMPLE_PATH = libavcodec/ \
libavformat/
# If the value of the EXAMPLE_PATH tag contains directories, you can use the
# EXAMPLE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp
# and *.h) to filter out the source-files in the directories. If left
# blank all files are included.
EXAMPLE_PATTERNS = *.c
EXAMPLE_PATTERNS = *-example.c
# If the EXAMPLE_RECURSIVE tag is set to YES then subdirectories will be
# searched for input files to be used with the \include or \dontinclude
@@ -709,7 +716,7 @@ 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
@@ -793,13 +800,13 @@ HTML_FILE_EXTENSION = .html
# each generated HTML page. If it is left blank doxygen will generate a
# standard header.
#HTML_HEADER = doc/doxy/header.html
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 = doc/doxy/footer.html
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 +815,7 @@ HTML_FILE_EXTENSION = .html
# 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 = doc/doxy/doxy_stylesheet.css
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
@@ -818,7 +825,7 @@ HTML_FILE_EXTENSION = .html
# 180 is cyan, 240 is blue, 300 purple, and 360 is red again.
# The allowed range is 0 to 359.
#HTML_COLORSTYLE_HUE = 120
HTML_COLORSTYLE_HUE = 120
# The HTML_COLORSTYLE_SAT tag controls the purity (or saturation) of
# the colors in the HTML output. For a value of 0 the output will use
@@ -841,6 +848,12 @@ HTML_COLORSTYLE_GAMMA = 80
HTML_TIMESTAMP = YES
# If the HTML_ALIGN_MEMBERS tag is set to YES, the members of classes,
# files or namespaces will be aligned in HTML using tables. If set to
# NO a bullet list will be used.
HTML_ALIGN_MEMBERS = YES
# If the HTML_DYNAMIC_SECTIONS tag is set to YES then the generated HTML
# documentation will contain sections that can be hidden and shown after the
# page has loaded. For this to work a browser that supports
@@ -1021,6 +1034,11 @@ ENUM_VALUES_PER_LINE = 4
GENERATE_TREEVIEW = NO
# By enabling USE_INLINE_TREES, doxygen will generate the Groups, Directories,
# and Class Hierarchy pages using a tree view instead of an ordered list.
USE_INLINE_TREES = NO
# If the treeview is enabled (see GENERATE_TREEVIEW) then this tag can be
# used to set the initial width (in pixels) of the frame in which the tree
# is shown.
@@ -1356,9 +1374,14 @@ INCLUDE_FILE_PATTERNS =
# instead of the = operator.
PREDEFINED = "__attribute__(x)=" \
"RENAME(x)=x ## _TMPL" \
"DEF(x)=x ## _TMPL" \
HAVE_AV_CONFIG_H \
HAVE_MMX \
HAVE_MMXEXT \
HAVE_AMD3DNOW \
"DECLARE_ALIGNED(a,t,n)=t n" \
"offsetof(x,y)=0x42" \
av_alloc_size \
"offsetof(x,y)=0x42"
# 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.

36
LICENSE
View File

@@ -23,38 +23,18 @@ Specifically, the GPL parts of FFmpeg are
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_kerndeint.c
- vf_mcdeint.c
- vf_mp.c
- vf_owdenoise.c
- vf_perspective.c
- vf_phase.c
- vf_pp.c
- vf_pullup.c
- vf_sab.c
- vf_smartblur.c
- vf_spp.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
@@ -64,6 +44,11 @@ There are a handful of files under other licensing terms, namely:
You must also indicate any changes including additions and deletions to
those three files in the documentation.
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.
external libraries
==================
@@ -74,15 +59,8 @@ affect the licensing of binaries resulting from the combination.
compatible libraries
--------------------
The following libraries are under GPL:
- frei0r
- libcdio
- libutvideo
- libvidstab
- libx264
- libxavs
- libxvid
When combining them with FFmpeg, FFmpeg needs to be licensed as GPL as well by
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

View File

@@ -7,14 +7,13 @@ 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
@@ -43,24 +42,16 @@ QuickTime faststart:
Miscellaneous Areas
===================
documentation Stefano Sabatini, Mike Melanson, Timothy Gu
documentation Mike Melanson
website Robert Swain, Lou Logan
build system (configure,Makefiles) Diego Biurrun, Mans Rullgard
project server Árpád Gereöffy, Michael Niedermayer, Reimar Döffinger, Alexander Strasser
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 Robert Swain, Lou Logan
mailinglists Michael Niedermayer, Baptiste Coudurier, Lou Logan
Google+ Paul B Mahol, Michael Niedermayer, Alexander Strasser
Twitter Lou Logan
Launchpad Timothy Gu
libavutil
=========
@@ -70,23 +61,11 @@ Internal Interfaces:
libavutil/common.h Michael Niedermayer
Other:
bprint Nicolas George
bswap.h
des Reimar Doeffinger
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
@@ -97,6 +76,10 @@ 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:
@@ -127,8 +110,6 @@ Generic Parts:
libpostproc/* Michael Niedermayer
table generation:
tableprint.c, tableprint.h Reimar Doeffinger
fixed point FFT:
fft* Zeljko Lukac
Codecs:
4xm.c Michael Niedermayer
@@ -147,7 +128,6 @@ Codecs:
binkaudio.c Peter Ross
bmp.c Mans Rullgard, Kostya Shishkov
cavs* Stefan Gehrer
cdxl.c Paul B Mahol
celp_filters.* Vitor Sessak
cinepak.c Roberto Togni
cljr Alex Beregszaszi
@@ -159,10 +139,9 @@ Codecs:
dca.c Kostya Shishkov, Benjamin Larsson
dnxhd* Baptiste Coudurier
dpcm.c Mike Melanson
dv.c Roman Shaposhnik
dxa.c Kostya Shishkov
dv.c Roman Shaposhnik
eacmv*, eaidct*, eat* Peter Ross
exif.c, exif.h Thilo Borgmann
ffv1.c Michael Niedermayer
ffwavesynth.c Nicolas George
flac* Justin Ruggles
@@ -171,9 +150,9 @@ Codecs:
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.c Michael Niedermayer
idcinvideo.c Mike Melanson
imc* Benjamin Larsson
@@ -182,14 +161,13 @@ 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
libdirac* David Conrad
libopenjpeg.c Jaikrishnan Menon
libopenjpegenc.c Michael Bradshaw
libschroedinger* David Conrad
@@ -197,25 +175,23 @@ Codecs:
libtheoraenc.c David Conrad
libutvideo* Derek Buitenhuis
libvorbis.c David Conrad
libx264.c Mans Rullgard, Jason Garrett-Glaser
libxavs.c Stefan Gehrer
libx264.c Mans Rullgard, Jason Garrett-Glaser
loco.c Kostya Shishkov
lzo.h, lzo.c Reimar Doeffinger
mdec.c Michael Niedermayer
mimic.c Ramiro Polla
mjpeg*.c Michael Niedermayer
mjpeg.c Michael Niedermayer
mlp* Ramiro Polla
mmvideo.c Peter Ross
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
paf.* Paul B Mahol
pcx.c Ivo van Poorten
pgssubdec.c Reimar Doeffinger
ptx.c Ivo van Poorten
@@ -235,13 +211,11 @@ Codecs:
s3tc* Ivo van Poorten
smacker.c Kostya Shishkov
smc.c Mike Melanson
smvjpegdec.c Ash Hughes
snow.c Michael Niedermayer, Loren Merritt
sonic.c Alex Beregszaszi
srt* Aurelien Jacobs
sunrast.c Ivo van Poorten
svq3.c Michael Niedermayer
tak* Paul B Mahol
targa.c Kostya Shishkov
tiff.c Kostya Shishkov
truemotion1* Mike Melanson
@@ -249,7 +223,6 @@ 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
@@ -258,10 +231,9 @@ Codecs:
vc1* Kostya Shishkov
vcr1.c Michael Niedermayer
vda_h264_dec.c Xidorn Quan
vima.c Paul B Mahol
vmnc.c Kostya Shishkov
vorbis_dec.c Denes Balatoni, David Conrad
vorbis_enc.c Oded Shimon
vorbis_dec.c Denes Balatoni, David Conrad
vp3* Mike Melanson
vp5 Aurelien Jacobs
vp6 Aurelien Jacobs
@@ -273,11 +245,8 @@ Codecs:
wmv2.c Michael Niedermayer
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
zerocodec.c Derek Buitenhuis
zmbv* Kostya Shishkov
@@ -296,16 +265,12 @@ libavdevice
libavdevice/avdevice.h
dshow.c Roger Pack
fbdev_enc.c Lukasz Marek
iec61883.c Georg Lippitsch
lavfi Stefano Sabatini
libdc1394.c Roman Shaposhnik
pulse_audio_enc.c Lukasz Marek
sdl Stefano Sabatini
v4l2.c Luca Abeni
vfwcap.c Ramiro Polla
libavfilter
===========
@@ -313,33 +278,10 @@ Generic parts:
graphdump.c Nicolas George
Filters:
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_compand.c Paul B Mahol
af_ladspa.c Paul B Mahol
af_pan.c Nicolas George
avf_avectorscope.c Paul B Mahol
vf_blend.c Paul B Mahol
vf_colorbalance.c Paul B Mahol
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_il.c Paul B Mahol
vf_mergeplanes.c Paul B Mahol
vf_psnr.c Paul B Mahol
vf_scale.c Michael Niedermayer
vf_separatefields.c Paul B Mahol
vf_stereo3d.c Paul B Mahol
vf_telecine.c Paul B Mahol
vf_yadif.c Michael Niedermayer
Sources:
@@ -358,27 +300,17 @@ Generic parts:
Muxers/Demuxers:
4xm.c Mike Melanson
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
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
caf* Peter Ross
cdxl.c Paul B Mahol
crc.c Michael Niedermayer
daud.c Reimar Doeffinger
dtshddec.c Paul B Mahol
dv.c Roman Shaposhnik
dxa.c Kostya Shishkov
electronicarts.c Peter Ross
epafdec.c Paul B Mahol
ffm* Baptiste Coudurier
flac* Justin Ruggles
flic.c Mike Melanson
@@ -388,26 +320,23 @@ Muxers/Demuxers:
idcin.c Mike Melanson
idroqdec.c Mike Melanson
iff.c Jaikrishnan Menon
img2*.c Michael Niedermayer
ipmovie.c Mike Melanson
ircam* Paul B Mahol
img2.c Michael Niedermayer
iss.c Stefan Gehrer
jacosub* Clément Bœsch
jvdec.c Peter Ross
libmodplug.c Clément Bœsch
libnut.c Oded Shimon
lmlm4.c Ivo van Poorten
lvfdec.c Paul B Mahol
lxfdec.c Tomas Härdin
matroska.c Aurelien Jacobs
matroskadec.c Aurelien Jacobs
matroskaenc.c David Conrad
metadata* Aurelien Jacobs
mgsts.c Paul B Mahol
microdvd* Aurelien Jacobs
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
@@ -416,7 +345,6 @@ Muxers/Demuxers:
mtv.c Reynaldo H. Verdejo Pinochet
mxf* Baptiste Coudurier
mxfdec.c Tomas Härdin
nistspheredec.c Paul B Mahol
nsvdec.c Francois Revol
nut.c Michael Niedermayer
nuv.c Reimar Doeffinger
@@ -424,10 +352,8 @@ Muxers/Demuxers:
oggenc.c Baptiste Coudurier
oggparse*.c David Conrad
oma.c Maxim Poliakovski
paf.c Paul B Mahol
psxstr.c Mike Melanson
pva.c Ivo van Poorten
pvfdec.c Paul B Mahol
r3d.c Baptiste Coudurier
raw.c Michael Niedermayer
rdt.c Ronald S. Bultje
@@ -443,51 +369,31 @@ Muxers/Demuxers:
segafilm.c Mike Melanson
siff.c Kostya Shishkov
smacker.c Kostya Shishkov
smjpeg* Paul B Mahol
srtdec.c Aurelien Jacobs
swf.c Baptiste Coudurier
takdec.c Paul B Mahol
tta.c Alex Beregszaszi
txd.c Ivo van Poorten
voc.c Aurelien Jacobs
wav.c Michael Niedermayer
wc3movie.c Mike Melanson
webvtt* Matthew J Heaney
westwood.c Mike Melanson
wtv.c Peter Ross
wv.c Kostya Shishkov
wvenc.c Paul B Mahol
Protocols:
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
libswresample
=============
Generic parts:
audioconvert.c Michael Niedermayer
dither.c Michael Niedermayer
rematrix*.c Michael Niedermayer
swresample*.c Michael Niedermayer
Resamplers:
resample*.c Michael Niedermayer
soxr_resample.c Rob Sykes
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
@@ -501,8 +407,9 @@ x86 Michael Niedermayer
Releases
========
2.1 Michael Niedermayer
2.0 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
@@ -510,10 +417,8 @@ 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
@@ -521,10 +426,8 @@ Benoit Fouet B22A 4F4F 43EF 636B BB66 FCDC 0023 AE1E 2985 49C8
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
@@ -538,7 +441,6 @@ 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
Stefano Sabatini 9A43 10F8 D32C D33C 48E7 C52C 5DF2 8E4D B2EE 066B
Stephan Hilb 4F38 0B3A 5F39 B99B F505 E562 8D5C 5554 4E17 8863
Tomas Härdin A79D 4E3D F38F 763F 91F5 8B33 A01E 8AE0 41BB 2551
Wei Gao 4269 7741 857A 0E60 9EC5 08D2 4744 4EFA 62C1 87B9
Tomas Härdin D133 29CA 4EEC 9DB4 7076 F697 B04B 7403 3313 41FD

View File

@@ -17,10 +17,9 @@ PROGS-$(CONFIG_FFSERVER) += ffserver
PROGS := $(PROGS-yes:%=%$(PROGSSUF)$(EXESUF))
INSTPROGS = $(PROGS-yes:%=%$(PROGSSUF)$(EXESUF))
OBJS = cmdutils.o $(EXEOBJS)
OBJS = cmdutils.o
OBJS-ffmpeg = ffmpeg_opt.o ffmpeg_filter.o
TESTTOOLS = audiogen videogen rotozoom tiny_psnr tiny_ssim base64
TESTTOOLS = audiogen videogen rotozoom tiny_psnr base64
HOSTPROGS := $(TESTTOOLS:%=tests/%) doc/print_options
TOOLS = qt-faststart trasher
TOOLS-$(CONFIG_ZLIB) += cws2fws
@@ -28,6 +27,7 @@ TOOLS-$(CONFIG_ZLIB) += cws2fws
BASENAMES = ffmpeg ffplay ffprobe ffserver
ALLPROGS = $(BASENAMES:%=%$(PROGSSUF)$(EXESUF))
ALLPROGS_G = $(BASENAMES:%=%$(PROGSSUF)_g$(EXESUF))
ALLMANPAGES = $(BASENAMES:%=%.1)
FFLIBS-$(CONFIG_AVDEVICE) += avdevice
FFLIBS-$(CONFIG_AVFILTER) += avfilter
@@ -41,9 +41,9 @@ FFLIBS-$(CONFIG_SWSCALE) += swscale
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
EXAMPLES_FILES := $(wildcard $(SRC_PATH)/doc/examples/*.c) $(SRC_PATH)/doc/examples/Makefile
SKIPHEADERS = cmdutils_common_opts.h compat/w32pthreads.h
SKIPHEADERS = cmdutils_common_opts.h
include $(SRC_PATH)/common.mak
@@ -56,8 +56,8 @@ $(PROGS): %$(EXESUF): %_g$(EXESUF)
$(CP) $< $@
$(STRIP) $@
$(TOOLS): %$(EXESUF): %.o $(EXEOBJS)
$(LD) $(LDFLAGS) $(LD_O) $^ $(ELIBS)
$(TOOLS): %$(EXESUF): %.o
$(LD) $(LDFLAGS) $(LD_O) $< $(ELIBS)
tools/cws2fws$(EXESUF): ELIBS = $(ZLIB)
@@ -68,9 +68,9 @@ config.h: .config
@-tput sgr0 2>/dev/null
SUBDIR_VARS := CLEANFILES EXAMPLES FFLIBS HOSTPROGS TESTPROGS TOOLS \
HEADERS ARCH_HEADERS BUILT_HEADERS SKIPHEADERS \
ARMV5TE-OBJS ARMV6-OBJS VFP-OBJS NEON-OBJS \
ALTIVEC-OBJS VIS-OBJS \
ARCH_HEADERS BUILT_HEADERS SKIPHEADERS \
ARMV5TE-OBJS ARMV6-OBJS ARMVFP-OBJS NEON-OBJS \
MMI-OBJS ALTIVEC-OBJS VIS-OBJS \
MMX-OBJS YASM-OBJS \
MIPSFPU-OBJS MIPSDSPR2-OBJS MIPSDSPR1-OBJS MIPS32R2-OBJS \
OBJS HOSTOBJS TESTOBJS
@@ -91,8 +91,8 @@ endef
$(foreach D,$(FFLIBS),$(eval $(call DOSUBDIR,lib$(D))))
define DOPROG
OBJS-$(1) += $(1).o cmdutils.o $(EXEOBJS)
$(1)$(PROGSSUF)_g$(EXESUF): $$(OBJS-$(1))
OBJS-$(1) += $(1).o
$(1)$(PROGSSUF)_g$(EXESUF): $(OBJS-$(1))
$$(OBJS-$(1)): CFLAGS += $(CFLAGS-$(1))
$(1)$(PROGSSUF)_g$(EXESUF): LDFLAGS += $(LDFLAGS-$(1))
$(1)$(PROGSSUF)_g$(EXESUF): FF_EXTRALIBS += $(LIBS-$(1))
@@ -101,8 +101,8 @@ endef
$(foreach P,$(PROGS-yes),$(eval $(call DOPROG,$(P))))
%$(PROGSSUF)_g$(EXESUF): %.o $(FF_DEP_LIBS)
$(LD) $(LDFLAGS) $(LD_O) $(OBJS-$*) $(FF_EXTRALIBS)
%$(PROGSSUF)_g$(EXESUF): %.o cmdutils.o $(FF_DEP_LIBS)
$(LD) $(LDFLAGS) $(LD_O) $(OBJS-$*) cmdutils.o $(FF_EXTRALIBS)
OBJDIRS += tools
@@ -152,17 +152,27 @@ uninstall-data:
clean::
$(RM) $(ALLPROGS) $(ALLPROGS_G)
$(RM) $(CLEANSUFFIXES)
$(RM) $(TOOLS)
$(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 version.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

View File

@@ -1 +1 @@
2.1.5
1.0.10

View File

@@ -1 +1 @@
2.1.5
1.0.10

View File

@@ -1,8 +1,9 @@
OBJS-$(HAVE_ARMV5TE) += $(ARMV5TE-OBJS) $(ARMV5TE-OBJS-yes)
OBJS-$(HAVE_ARMV6) += $(ARMV6-OBJS) $(ARMV6-OBJS-yes)
OBJS-$(HAVE_VFP) += $(VFP-OBJS) $(VFP-OBJS-yes)
OBJS-$(HAVE_ARMVFP) += $(ARMVFP-OBJS) $(ARMVFP-OBJS-yes)
OBJS-$(HAVE_NEON) += $(NEON-OBJS) $(NEON-OBJS-yes)
OBJS-$(HAVE_MMI) += $(MMI-OBJS) $(MMI-OBJS-yes)
OBJS-$(HAVE_MIPSFPU) += $(MIPSFPU-OBJS) $(MIPSFPU-OBJS-yes)
OBJS-$(HAVE_MIPS32R2) += $(MIPS32R2-OBJS) $(MIPS32R2-OBJS-yes)
OBJS-$(HAVE_MIPSDSPR1) += $(MIPSDSPR1-OBJS) $(MIPSDSPR1-OBJS-yes)

File diff suppressed because it is too large Load Diff

View File

@@ -51,18 +51,8 @@ extern const int this_year;
extern AVCodecContext *avcodec_opts[AVMEDIA_TYPE_NB];
extern AVFormatContext *avformat_opts;
extern struct SwsContext *sws_opts;
extern AVDictionary *swr_opts;
extern AVDictionary *format_opts, *codec_opts, *resample_opts;
/**
* 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);
extern struct SwrContext *swr_opts;
extern AVDictionary *format_opts, *codec_opts;
/**
* Initialize the cmdutils option system, in particular
@@ -81,11 +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.
@@ -101,9 +86,9 @@ int opt_report(const char *opt);
int opt_max_alloc(void *optctx, const char *opt, const char *arg);
int opt_codec_debug(void *optctx, const char *opt, const char *arg);
int opt_cpuflags(void *optctx, const char *opt, const char *arg);
int opt_opencl(void *optctx, const char *opt, const char *arg);
int opt_codec_debug(void *optctx, const char *opt, const char *arg);
/**
* Limit the execution time.
@@ -138,7 +123,7 @@ double parse_number_or_die(const char *context, const char *numstr, int type,
* not zero timestr is interpreted as a duration, otherwise as a
* date
*
* @see av_parse_time()
* @see parse_date()
*/
int64_t parse_time_or_die(const char *context, const char *timestr,
int is_duration);
@@ -154,7 +139,7 @@ typedef struct SpecifierOpt {
} u;
} SpecifierOpt;
typedef struct OptionDef {
typedef struct {
const char *name;
int flags;
#define HAS_ARG 0x0001
@@ -177,8 +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 *);
@@ -221,8 +204,6 @@ int show_help(void *optctx, const char *opt, const char *arg);
* Parse the command line arguments.
*
* @param optctx an opaque options context
* @param argc number of command line arguments
* @param argv values of command line arguments
* @param options Array with the definitions required to interpret every
* option of the form: -option_name [argument]
* @param parse_arg_function Name of the function called to process every
@@ -240,101 +221,6 @@ void parse_options(void *optctx, int argc, char **argv, const OptionDef *options
int parse_option(void *optctx, const char *opt, const char *arg,
const OptionDef *options);
/**
* An option extracted from the commandline.
* Cannot use AVDictionary because of options like -map which can be
* used multiple times.
*/
typedef struct Option {
const OptionDef *opt;
const char *key;
const char *val;
} Option;
typedef struct OptionGroupDef {
/**< group name */
const char *name;
/**
* Option to be used as group separator. Can be NULL for groups which
* 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 {
const OptionGroupDef *group_def;
const char *arg;
Option *opts;
int nb_opts;
AVDictionary *codec_opts;
AVDictionary *format_opts;
AVDictionary *resample_opts;
struct SwsContext *sws_opts;
AVDictionary *swr_opts;
} OptionGroup;
/**
* A list of option groups that all have the same group type
* (e.g. input files or output files)
*/
typedef struct OptionGroupList {
const OptionGroupDef *group_def;
OptionGroup *groups;
int nb_groups;
} OptionGroupList;
typedef struct OptionParseContext {
OptionGroup global_opts;
OptionGroupList *groups;
int nb_groups;
/* parsing state */
OptionGroup cur_group;
} OptionParseContext;
/**
* Parse an options group and write results into optctx.
*
* @param optctx an app-specific options context. NULL for global options group
*/
int parse_optgroup(void *optctx, OptionGroup *g);
/**
* Split the commandline into an intermediate form convenient for further
* processing.
*
* The commandline is assumed to be composed of options which either belong to a
* group (those with OPT_SPEC, OPT_OFFSET or OPT_PERFILE) or are global
* (everything else).
*
* A group (defined by an OptionGroupDef struct) is a sequence of options
* terminated by either a group separator option (e.g. -i) or a parameter that
* is not an option (doesn't start with -). A group without a separator option
* must always be first in the supplied groups list.
*
* All options within the same group are stored in one OptionGroup struct in an
* OptionGroupList, all groups with the same group definition are stored in one
* OptionGroupList in OptionParseContext.groups. The order of group lists is the
* same as the order of group definitions.
*/
int split_commandline(OptionParseContext *octx, int argc, char *argv[],
const OptionDef *options,
const OptionGroupDef *groups, int nb_groups);
/**
* Free all allocated memory in an OptionParseContext.
*/
void uninit_parse_context(OptionParseContext *octx);
/**
* Find the '-loglevel' option in the command line args and apply it.
*/
@@ -363,8 +249,6 @@ int check_stream_specifier(AVFormatContext *s, AVStream *st, const char *spec);
* Create a new options dictionary containing only the options from
* opts which apply to the codec with ID codec_id.
*
* @param opts dictionary to place options in
* @param codec_id ID of the codec that should be filtered for
* @param s Corresponding format context.
* @param st A stream from s for which the options should be filtered.
* @param codec The particular codec for which the options should be filtered.
@@ -488,12 +372,6 @@ 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.
*/
void 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.
@@ -504,10 +382,9 @@ 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
* @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);
@@ -533,22 +410,64 @@ int cmdutils_read_file(const char *filename, char **bufptr, size_t *size);
FILE *get_preset_file(char *filename, size_t filename_size,
const char *preset_name, int is_path, const char *codec_name);
/**
* Do all the necessary cleanup and abort.
* This function is implemented in the avtools, not cmdutils.
*/
av_noreturn void exit_program(int ret);
/**
* Realloc array to hold new_size elements of elem_size.
* Calls exit() on failure.
* Calls exit_program() on failure.
*
* @param array array to reallocate
* @param elem_size size in bytes of each element
* @param size new element count will be written here
* @param new_size number of elements to place in reallocated array
* @return reallocated array
*/
void *grow_array(void *array, int elem_size, int *size, int new_size);
#define media_type_string av_get_media_type_string
typedef struct FrameBuffer {
uint8_t *base[4];
uint8_t *data[4];
int linesize[4];
#define GROW_ARRAY(array, nb_elems)\
array = grow_array(array, sizeof(*array), &nb_elems, nb_elems + 1)
int h, w;
enum PixelFormat 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);

View File

@@ -14,12 +14,10 @@
{ "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" },
{ "debug" , HAS_ARG, {.func_arg = opt_codec_debug}, "set debug flags", "flags" },
{ "fdebug" , HAS_ARG, {.func_arg = opt_codec_debug}, "set debug flags", "flags" },
{ "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" },
#if CONFIG_OPENCL
{ "opencl_options", HAS_ARG, {.func_arg = opt_opencl}, "set OpenCL environment options" },
#endif
{ "cpuflags" , HAS_ARG | OPT_EXPERT, {.func_arg = opt_cpuflags}, "force specific cpu flags", "flags" },

View File

@@ -30,9 +30,9 @@ CFLAGS += $(ECFLAGS)
CCFLAGS = $(CPPFLAGS) $(CFLAGS)
ASFLAGS := $(CPPFLAGS) $(ASFLAGS)
CXXFLAGS += $(CPPFLAGS) $(CFLAGS)
YASMFLAGS += $(IFLAGS:%=%/) -Pconfig.asm
YASMFLAGS += $(IFLAGS:%=%/) -I$(SRC_PATH)/libavutil/x86/ -Pconfig.asm
HOSTCCFLAGS = $(IFLAGS) $(HOSTCPPFLAGS) $(HOSTCFLAGS)
HOSTCCFLAGS = $(IFLAGS) $(HOSTCFLAGS)
LDFLAGS := $(ALLFFLIBS:%=$(LD_PATH)lib%) $(LDFLAGS)
define COMPILE
@@ -56,9 +56,6 @@ COMPILE_S = $(call COMPILE,AS)
%.o: %.S
$(COMPILE_S)
%.i: %.c
$(CC) $(CCFLAGS) $(CC_E) $<
%.h.c:
$(Q)echo '#include "$*.h"' >$@
@@ -97,12 +94,9 @@ HOSTPROGS := $(HOSTPROGS:%=$(SUBDIR)%$(HOSTEXESUF))
TOOLS += $(TOOLS-yes)
TOOLOBJS := $(TOOLS:%=tools/%.o)
TOOLS := $(TOOLS:%=tools/%$(EXESUF))
HEADERS += $(HEADERS-yes)
PATH_LIBNAME = $(foreach NAME,$(1),lib$(NAME)/$($(CONFIG_SHARED:yes=S)LIBNAME))
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)%)
@@ -119,24 +113,18 @@ $(HOSTPROGS): %$(HOSTEXESUF): %.o
$(HOSTLD) $(HOSTLDFLAGS) $(HOSTLD_O) $< $(HOSTLIBS)
$(OBJS): | $(sort $(dir $(OBJS)))
$(HOBJS): | $(sort $(dir $(HOBJS)))
$(HOSTOBJS): | $(sort $(dir $(HOSTOBJS)))
$(TESTOBJS): | $(sort $(dir $(TESTOBJS)))
$(HOBJS): | $(sort $(dir $(HOBJS)))
$(TOOLOBJS): | tools
OBJDIRS := $(OBJDIRS) $(dir $(OBJS) $(HOBJS) $(HOSTOBJS) $(TESTOBJS))
OBJDIRS := $(OBJDIRS) $(dir $(OBJS) $(HOSTOBJS) $(TESTOBJS) $(HOBJS))
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)
$(RM) $(HOSTPROGS)
$(RM) $(TOOLS)
endef
$(eval $(RULES))
-include $(wildcard $(OBJS:.o=.d) $(HOSTOBJS:.o=.d) $(TESTOBJS:.o=.d) $(HOBJS:.o=.d))

View File

@@ -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 */

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@@ -1,879 +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.
// 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__
#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
typedef unsigned char BYTE;
#ifdef __GNUC__
typedef long long int INT64;
#else
typedef __int64 INT64;
#endif
/////////////////////////////////////////////////////////////////////
//
// Constants
//
#ifndef __AVISYNTH_H__
enum { AVISYNTH_INTERFACE_VERSION = 4 };
#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 = 1 << 3,
AVS_CS_SHIFT_SAMPLE_BITS = 1 << 4,
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 {
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_yv24(const AVS_VideoInfo * p)
{ return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_YV24 & AVS_CS_PLANAR_FILTER); }
AVSC_INLINE int avs_is_yv16(const AVS_VideoInfo * p)
{ return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_YV16 & AVS_CS_PLANAR_FILTER); }
AVSC_INLINE int avs_is_yv12(const AVS_VideoInfo * p)
{ return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_YV12 & AVS_CS_PLANAR_FILTER); }
AVSC_INLINE int avs_is_yv411(const AVS_VideoInfo * p)
{ return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_YV411 & AVS_CS_PLANAR_FILTER); }
AVSC_INLINE int avs_is_y8(const AVS_VideoInfo * p)
{ return (p->pixel_type & AVS_CS_PLANAR_MASK) == (AVS_CS_Y8 & AVS_CS_PLANAR_FILTER); }
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_color_space(const AVS_VideoInfo * p, int c_space)
{ return avs_is_planar(p) ? ((p->pixel_type & AVS_CS_PLANAR_MASK) == (c_space & AVS_CS_PLANAR_FILTER)) : ((p->pixel_type & c_space) == 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_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 {
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_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_sizeUV;
else return 0;
case AVS_PLANAR_U_ALIGNED: case AVS_PLANAR_V_ALIGNED:
if (p->pitchUV) {
r = (p->row_sizeUV+AVS_FRAME_ALIGN-1)&(~(AVS_FRAME_ALIGN-1)); // Aligned rowsize
if (r < p->pitchUV)
return r;
return p->row_sizeUV;
} 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->heightUV;
return 0;
}
return p->height;}
AVSC_INLINE const BYTE* avs_get_read_ptr(const AVS_VideoFrame * p) {
return p->vfb->data + p->offset;}
AVSC_INLINE const BYTE* 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 BYTE* 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 BYTE* 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;
}
}
}
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_SSE4_2 = 0x800, // Nehalem
};
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, 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,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
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_error);
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);
};
#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_error);
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);
#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

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@@ -1,68 +0,0 @@
// Copyright (c) 2011 FFmpegSource Project
//
// 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.
/* these are defines/functions that are used and were changed in the switch to 2.6
* and are needed to maintain full compatility with 2.5 */
enum {
AVS_CS_YV12_25 = 1<<3 | AVS_CS_YUV | AVS_CS_PLANAR, // y-v-u, planar
AVS_CS_I420_25 = 1<<4 | AVS_CS_YUV | AVS_CS_PLANAR, // y-u-v, planar
};
AVSC_INLINE int avs_get_height_p_25(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 int avs_get_row_size_p_25(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_is_yv12_25(const AVS_VideoInfo * p)
{ return ((p->pixel_type & AVS_CS_YV12_25) == AVS_CS_YV12_25)||((p->pixel_type & AVS_CS_I420_25) == AVS_CS_I420_25); }

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@@ -1,727 +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 __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; 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
//
#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__

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@@ -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__

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@@ -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__

View File

@@ -46,7 +46,7 @@ static int getopt(int argc, char *argv[], char *opts)
int c;
char *cp;
if (sp == 1) {
if (sp == 1)
if (optind >= argc ||
argv[optind][0] != '-' || argv[optind][1] == '\0')
return EOF;
@@ -54,7 +54,6 @@ static int getopt(int argc, char *argv[], char *opts)
optind++;
return EOF;
}
}
optopt = c = argv[optind][sp];
if (c == ':' || (cp = strchr(opts, c)) == NULL) {
fprintf(stderr, ": illegal option -- %c\n", c);

View File

@@ -1,10 +0,0 @@
#!/bin/sh
n=10
case "$1" in
-n) n=$2; shift 2 ;;
-n*) n=${1#-n}; shift ;;
esac
exec sed ${n}q "$@"

View File

@@ -1,34 +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
*/
int plan9_main(int argc, char **argv);
#undef main
int main(int argc, char **argv)
{
/* The setfcr() function in lib9 is broken, must use asm. */
#ifdef __i386
short fcr;
__asm__ volatile ("fstcw %0 \n"
"or $63, %0 \n"
"fldcw %0 \n"
: "=m"(fcr));
#endif
return plan9_main(argc, argv);
}

View File

@@ -1,2 +0,0 @@
#!/bin/sh
exec awk "BEGIN { for (i = 2; i < ARGC; i++) printf \"$1\", ARGV[i] }" "$@"

View File

@@ -19,6 +19,7 @@
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <ctype.h>
#include <limits.h>
#include <stdlib.h>
@@ -48,7 +49,7 @@ double avpriv_strtod(const char *nptr, char **endptr)
double res;
/* Skip leading spaces */
while (av_isspace(*nptr))
while (isspace(*nptr))
nptr++;
if (!av_strncasecmp(nptr, "infinity", 8)) {

View File

@@ -1,30 +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
*/
#ifndef FFMPEG_COMPAT_TMS470_MATH_H
#define FFMPEG_COMPAT_TMS470_MATH_H
#include_next <math.h>
#undef INFINITY
#undef NAN
#define INFINITY (*(const float*)((const unsigned []){ 0x7f800000 }))
#define NAN (*(const float*)((const unsigned []){ 0x7fc00000 }))
#endif /* FFMPEG_COMPAT_TMS470_MATH_H */

2434
configure vendored

File diff suppressed because it is too large Load Diff

View File

@@ -1,437 +1,100 @@
Never assume the API of libav* to be stable unless at least 1 month has passed
since the last major version increase or the API was added.
since the last major version increase.
The last version increases were:
libavcodec: 2013-03-xx
libavdevice: 2013-03-xx
libavcodec: 2012-01-27
libavdevice: 2011-04-18
libavfilter: 2012-06-22
libavformat: 2013-03-xx
libavresample: 2012-10-05
libavformat: 2012-01-27
libavresample: 2012-04-24
libpostproc: 2011-04-18
libswresample: 2011-09-19
libswscale: 2011-06-20
libavutil: 2012-10-22
libavutil: 2011-04-18
API changes, most recent first:
2013-10-27 - xxxxxxx - lavc 55.39.100 - avcodec.h
Add CODEC_CAP_DELAY support to avcodec_decode_subtitle2.
2013-10-27 - xxxxxxx - lavu 52.48.100 - parseutils.h
Add av_get_known_color_name().
2013-10-17 - xxxxxxx - lavu 52.47.100 - opt.h
Add AV_OPT_TYPE_CHANNEL_LAYOUT and channel layout option handlers
av_opt_get_channel_layout() and av_opt_set_channel_layout().
2013-10-xx - xxxxxxx -libswscale 2.5.101 - options.c
Change default scaler to bicubic
2013-10-03 - xxxxxxx - lavc 55.34.100 - avcodec.h
Add av_codec_get_max_lowres()
2013-10-02 - xxxxxxx - lavf 55.19.100 - avformat.h
Add audio/video/subtitle AVCodec fields to AVFormatContext to force specific
decoders
2013-08-xx - xxxxxxx - lavfi 3.11.0 - avfilter.h
Add AVFilterGraph.execute and AVFilterGraph.opaque for custom slice threading
implementations.
2013-09-21 - xxxxxxx - lavu 52.16.0 - pixfmt.h
Add interleaved 4:2:2 8/10-bit formats AV_PIX_FMT_NV16 and
AV_PIX_FMT_NV20.
2013-09-16 - c74c3fb / 3feb3d6 - lavu 52.44.100 / 52.15.0 - mem.h
Add av_reallocp.
2013-09-04 - 3e1f507 - lavc 55.31.101 - avcodec.h
avcodec_close() argument can be NULL.
2013-09-04 - 36cd017 - lavf 55.16.101 - avformat.h
avformat_close_input() argument can be NULL and point on NULL.
2013-08-29 - e31db62 - lavf 55.15.100 - avformat.h
Add av_format_get_probe_score().
2013-08-15 - 1e0e193 - lsws 2.5.100 -
Add a sws_dither AVOption, allowing to set the dither algorithm used
2013-08-xx - xxxxxxx - lavc 55.27.100 - vdpau.h
Add a render2 alternative to the render callback function.
2013-08-xx - xxxxxxx - lavc 55.26.100 - vdpau.h
Add allocation function for AVVDPAUContext, allowing
to extend it in the future without breaking ABI/API.
2013-08-10 - 67a580f / 5a9a9d4 - lavc 55.25.100 / 55.16.0 - avcodec.h
Extend AVPacket API with av_packet_unref, av_packet_ref,
av_packet_move_ref, av_packet_copy_props, av_packet_free_side_data.
2013-08-05 - 9547e3e / f824535 - lavc 55.22.100 / 55.13.0 - avcodec.h
Deprecate the bitstream-related members from struct AVVDPAUContext.
The bistream buffers no longer need to be explicitly freed.
2013-08-05 - 3b805dc / 549294f - lavc 55.21.100 / 55.12.0 - avcodec.h
Deprecate the CODEC_CAP_HWACCEL_VDPAU codec capability. Use CODEC_CAP_HWACCEL
and select the AV_PIX_FMT_VDPAU format with get_format() instead.
2013-08-05 - 4ee0984 / a0ad5d0 - lavu 52.41.100 / 52.14.0 - pixfmt.h
Deprecate AV_PIX_FMT_VDPAU_*. Use AV_PIX_FMT_VDPAU instead.
2013-08-02 - 82fdfe8 / a8b1927 - lavc 55.20.100 / 55.11.0 - avcodec.h
Add output_picture_number to AVCodecParserContext.
2013-07-23 - abc8110 - lavc 55.19.100 - avcodec.h
Add avcodec_chroma_pos_to_enum()
Add avcodec_enum_to_chroma_pos()
2013-07-03 - 838bd73 - lavfi 3.78.100 - avfilter.h
Deprecate avfilter_graph_parse() in favor of the equivalent
avfilter_graph_parse_ptr().
2013-06-24 - af5f9c0 / 95d5246 - lavc 55.17.100 / 55.10.0 - avcodec.h
Add MPEG-2 AAC profiles
2013-06-25 - af5f9c0 / 95d5246 - lavf 55.10.100 - avformat.h
Add AV_DISPOSITION_* flags to indicate text track kind.
2013-06-15 - 99b8cd0 - lavu 52.36.100
Add AVRIPEMD:
av_ripemd_alloc()
av_ripemd_init()
av_ripemd_update()
av_ripemd_final()
2013-06-04 - 30b491f / fc962d4 - lavu 52.35.100 / 52.13.0 - mem.h
Add av_realloc_array and av_reallocp_array
2013-05-30 - 682b227 - lavu 52.35.100
Add AVSHA512:
av_sha512_alloc()
av_sha512_init()
av_sha512_update()
av_sha512_final()
2013-05-24 - 8d4e969 / 129bb23 - lavfi 3.10.0 / 3.70.100 - avfilter.h
Add support for slice multithreading to lavfi. Filters supporting threading
are marked with AVFILTER_FLAG_SLICE_THREADS.
New fields AVFilterContext.thread_type, AVFilterGraph.thread_type and
AVFilterGraph.nb_threads (accessible directly or through AVOptions) may be
used to configure multithreading.
2013-05-24 - fe40a9f / 2a6eaea - lavu 52.12.0 / 52.34.100 - cpu.h
Add av_cpu_count() function for getting the number of logical CPUs.
2013-05-24 - 0c25c39 / b493847 - lavc 55.7.0 / 55.12.100 - avcodec.h
Add picture_structure to AVCodecParserContext.
2013-05-17 - 3a751ea - lavu 52.33.100 - opt.h
Add AV_OPT_TYPE_COLOR value to AVOptionType enum.
2013-05-13 - e398416 - lavu 52.31.100 - mem.h
Add av_dynarray2_add().
2013-05-12 - 1776177 - lavfi 3.65.100
Add AVFILTER_FLAG_SUPPORT_TIMELINE* filter flags.
2013-04-19 - 380cfce - lavc 55.4.100
Add AV_CODEC_PROP_TEXT_SUB property for text based subtitles codec.
2013-04-18 - 7c1a002 - lavf 55.3.100
The matroska demuxer can now output proper verbatim ASS packets. It will
become the default starting lavf 56.0.100.
2013-04-10 - af0d270 - lavu 25.26.100 - avutil.h,opt.h
Add av_int_list_length()
and av_opt_set_int_list().
2013-03-30 - 5c73645 - lavu 52.24.100 - samplefmt.h
Add av_samples_alloc_array_and_samples().
2013-03-29 - ef7b6b4 - lavf 55.1.100 - avformat.h
Add av_guess_frame_rate()
2013-03-20 - 8d928a9 - lavu 52.22.100 - opt.h
Add AV_OPT_TYPE_DURATION value to AVOptionType enum.
2013-03-17 - 7aa9af5 - lavu 52.20.100 - opt.h
Add AV_OPT_TYPE_VIDEO_RATE value to AVOptionType enum.
2013-03-07 - 9767ec6 - lavu 52.18.100 - avstring.h,bprint.h
Add av_escape() and av_bprint_escape() API.
2013-02-24 - b59cd08 - lavfi 3.41.100 - buffersink.h
Add sample_rates field to AVABufferSinkParams.
2013-01-17 - a1a707f - lavf 54.61.100
Add av_codec_get_tag2().
2013-01-01 - 2eb2e17 - lavfi 3.34.100
Add avfilter_get_audio_buffer_ref_from_arrays_channels.
2012-12-20 - 34de47aa - lavfi 3.29.100 - avfilter.h
Add AVFilterLink.channels, avfilter_link_get_channels()
and avfilter_ref_get_channels().
2012-12-15 - 96d815fc - lavc 54.80.100 - avcodec.h
Add pkt_size field to AVFrame.
2012-11-25 - c70ec631 - lavu 52.9.100 - opt.h
Add the following convenience functions to opt.h:
av_opt_get_image_size
av_opt_get_pixel_fmt
av_opt_get_sample_fmt
av_opt_set_image_size
av_opt_set_pixel_fmt
av_opt_set_sample_fmt
2012-11-17 - 4cd74c81 - lavu 52.8.100 - bprint.h
Add av_bprint_strftime().
2012-11-15 - 92648107 - lavu 52.7.100 - opt.h
Add av_opt_get_key_value().
2012-11-13 - 79456652 - lavfi 3.23.100 - avfilter.h
Add channels field to AVFilterBufferRefAudioProps.
2012-11-03 - 481fdeee - lavu 52.3.100 - opt.h
Add AV_OPT_TYPE_SAMPLE_FMT value to AVOptionType enum.
2012-10-21 - 6fb2fd8 - lavc 54.68.100 - avcodec.h
lavfi 3.20.100 - avfilter.h
Add AV_PKT_DATA_STRINGS_METADATA side data type, used to transmit key/value
strings between AVPacket and AVFrame, and add metadata field to
AVCodecContext (which shall not be accessed by users; see AVFrame metadata
instead).
2012-09-27 - a70b493 - lavd 54.3.100 - version.h
Add LIBAVDEVICE_IDENT symbol.
2012-09-27 - a70b493 - lavfi 3.18.100 - version.h
Add LIBAVFILTER_IDENT symbol.
2012-09-27 - a70b493 - libswr 0.16.100 - version.h
Add LIBSWRESAMPLE_VERSION, LIBSWRESAMPLE_BUILD
and LIBSWRESAMPLE_IDENT symbols.
2012-09-06 - 29e972f - lavu 51.72.100 - parseutils.h
2012-09-01 - xxxxxxx - lavu 51.72.100 - parseutils.h
Add av_small_strptime() time parsing function.
Can be used as a stripped-down replacement for strptime(), on
systems which do not support it.
2012-08-25 - 2626cc4 - lavf 54.28.100
Matroska demuxer now identifies SRT subtitles as AV_CODEC_ID_SUBRIP instead
of AV_CODEC_ID_TEXT.
2012-08-13 - 5c0d8bc - lavfi 3.8.100 - avfilter.h
2012-08-13 - xxxxxxx - lavfi 3.8.100 - avfilter.h
Add avfilter_get_class() function, and priv_class field to AVFilter
struct.
2012-08-12 - a25346e - lavu 51.69.100 - opt.h
2012-08-13 - xxxxxxx - lavu 51.69.100 - opt.h
Add AV_OPT_FLAG_FILTERING_PARAM symbol in opt.h.
2012-07-31 - 23fc4dd - lavc 54.46.100
2012-07-31 - xxxxxxx - lavc 54.46.100
Add channels field to AVFrame.
2012-07-30 - f893904 - lavu 51.66.100
2012-07-30 - xxxxxxx - lavu 51.66.100
Add av_get_channel_description()
and av_get_standard_channel_layout() functions.
2012-07-21 - 016a472 - lavc 54.43.100
2012-07-20 - xxxxxxx - lavc 54.43.100
Add decode_error_flags field to AVFrame.
2012-07-20 - b062936 - lavf 54.18.100
2012-07-20 - xxxxxxx - lavf 54.18.100
Add avformat_match_stream_specifier() function.
2012-07-14 - f49ec1b - lavc 54.38.100 - avcodec.h
2012-07-14 - xxxxxxx - lavc 54.38.100 - avcodec.h
Add metadata to AVFrame, and the accessor functions
av_frame_get_metadata() and av_frame_set_metadata().
2012-07-10 - 0e003d8 - lavc 54.33.100
2012-07-10 - xxxxxxx - lavc 54.33.100
Add av_fast_padded_mallocz().
2012-07-10 - 21d5609 - lavfi 3.2.0 - avfilter.h
2012-07-10 - xxxxxxx - lavfi 3.2.0 - avfilter.h
Add init_opaque() callback to AVFilter struct.
2012-06-26 - e6674e4 - lavu 51.63.100 - imgutils.h
2012-06-26 - xxxxxxx - lavu 51.63.100 - imgutils.h
Add functions to libavutil/imgutils.h:
av_image_get_buffer_size()
av_image_fill_arrays()
av_image_copy_to_buffer()
2012-06-24 - c41899a - lavu 51.62.100 - version.h
2012-06-24 - xxxxxxx - lavu 51.62.100 - version.h
version moved from avutil.h to version.h
2012-04-11 - 359abb1 - lavu 51.58.100 - error.h
2012-04-11 - xxxxxxx - lavu 51.58.100 - error.h
Add av_make_error_string() and av_err2str() utilities to
libavutil/error.h.
2012-06-05 - 62b39d4 - lavc 54.24.100
2012-06-05 - xxxxxxx - lavc 54.24.100
Add pkt_duration field to AVFrame.
2012-05-24 - f2ee065 - lavu 51.54.100
2012-05-24 - xxxxxxx - lavu 51.54.100
Move AVPALETTE_SIZE and AVPALETTE_COUNT macros from
libavcodec/avcodec.h to libavutil/pixfmt.h.
2012-05-14 - 94a9ac1 - lavf 54.5.100
2012-05-07 - xxxxxxx - lavf 54.5.100
Add av_guess_sample_aspect_ratio() function.
2012-04-20 - 65fa7bc - lavfi 2.70.100
2012-04-20 - xxxxxxx - lavfi 2.70.100
Add avfilter_unref_bufferp() to avfilter.h.
2012-04-13 - 162e400 - lavfi 2.68.100
2012-04-12 - xxxxxxx - lavfi 2.68.100
Install libavfilter/asrc_abuffer.h public header.
2012-03-26 - a67d9cf - lavfi 2.66.100
Add avfilter_fill_frame_from_{audio_,}buffer_ref() functions.
2013-05-15 - ff46809 / e6c4ac7 - lavu 52.32.100 / 52.11.0 - pixdesc.h
Replace PIX_FMT_* flags with AV_PIX_FMT_FLAG_*.
2013-04-03 - 6fc58a8 / 507b1e4 - lavc 55.7.100 / 55.4.0 - avcodec.h
Add field_order to AVCodecParserContext.
2013-04-19 - f4b05cd / 5e83d9a - lavc 55.5.100 / 55.2.0 - avcodec.h
Add CODEC_FLAG_UNALIGNED to allow decoders to produce unaligned output.
2013-04-11 - lavfi 3.53.100 / 3.8.0
231fd44 / 38f0c07 - Move all content from avfiltergraph.h to avfilter.h. Deprecate
avfilterhraph.h, user applications should include just avfilter.h
86070b8 / bc1a985 - Add avfilter_graph_alloc_filter(), deprecate avfilter_open() and
avfilter_graph_add_filter().
4fde705 / 1113672 - Add AVFilterContext.graph pointing to the AVFilterGraph that contains the
filter.
710b0aa / 48a5ada - Add avfilter_init_str(), deprecate avfilter_init_filter().
46de9ba / 1ba95a9 - Add avfilter_init_dict().
16fc24b / 7cdd737 - Add AVFilter.flags field and AVFILTER_FLAG_DYNAMIC_{INPUTS,OUTPUTS} flags.
f4db6bf / 7e8fe4b - Add avfilter_pad_count() for counting filter inputs/outputs.
835cc0f / fa2a34c - Add avfilter_next(), deprecate av_filter_next().
Deprecate avfilter_uninit().
2013-04-09 - lavfi 3.51.100 / 3.7.0 - avfilter.h
0594ef0 / b439c99 - Add AVFilter.priv_class for exporting filter options through the
AVOptions API in the similar way private options work in lavc and lavf.
44d4488 / 8114c10 - Add avfilter_get_class().
Switch all filters to use AVOptions.
2013-03-19 - 17ebef2 / 2c328a9 - lavu 52.20.100 / 52.9.0 - pixdesc.h
Add av_pix_fmt_count_planes() function for counting planes in a pixel format.
2013-03-16 - ecade98 / 42c7c61 - lavfi 3.47.100 / 3.6.0
Add AVFilterGraph.nb_filters, deprecate AVFilterGraph.filter_count.
2013-03-08 - Reference counted buffers - lavu 52.8.0, lavc 55.0.100 / 55.0.0, lavf 55.0.100 / 55.0.0,
lavd 54.4.100 / 54.0.0, lavfi 3.5.0
36099df / 8e401db, 532f31a / 1cec062 - add a new API for reference counted buffers and buffer
pools (new header libavutil/buffer.h).
2653e12 / 1afddbe - add AVPacket.buf to allow reference counting for the AVPacket data.
Add av_packet_from_data() function for constructing packets from
av_malloc()ed data.
c4e8821 / 7ecc2d4 - move AVFrame from lavc to lavu (new header libavutil/frame.h), add
AVFrame.buf/extended_buf to allow reference counting for the AVFrame
data. Add new API for working with reference-counted AVFrames.
80e9e63 / 759001c - add the refcounted_frames field to AVCodecContext to make audio and
video decoders return reference-counted frames. Add get_buffer2()
callback to AVCodecContext which allocates reference-counted frames.
Add avcodec_default_get_buffer2() as the default get_buffer2()
implementation.
Deprecate AVCodecContext.get_buffer() / release_buffer() /
reget_buffer(), avcodec_default_get_buffer(),
avcodec_default_reget_buffer(), avcodec_default_release_buffer().
Remove avcodec_default_free_buffers(), which should not have ever
been called from outside of lavc.
Deprecate the following AVFrame fields:
* base -- is now stored in AVBufferRef
* reference, type, buffer_hints -- are unnecessary in the new API
* hwaccel_picture_private, owner, thread_opaque -- should not
have been acessed from outside of lavc
* qscale_table, qstride, qscale_type, mbskip_table, motion_val,
mb_type, dct_coeff, ref_index -- mpegvideo-specific tables,
which are not exported anymore.
a05a44e / 7e35037 - switch libavfilter to use AVFrame instead of AVFilterBufferRef. Add
av_buffersrc_add_frame(), deprecate av_buffersrc_buffer().
Add av_buffersink_get_frame() and av_buffersink_get_samples(),
deprecate av_buffersink_read() and av_buffersink_read_samples().
Deprecate AVFilterBufferRef and all functions for working with it.
2013-03-17 - 6c17ff8 / 12c5c1d - lavu 52.19.100 / 52.8.0 - avstring.h
Add av_isdigit, av_isgraph, av_isspace, av_isxdigit.
2013-02-23 - 71cf094 / 9f12235 - lavfi 3.40.100 / 3.4.0 - avfiltergraph.h
Add resample_lavr_opts to AVFilterGraph for setting libavresample options
for auto-inserted resample filters.
2013-01-25 - e7e14bc / 38c1466 - lavu 52.17.100 / 52.7.0 - dict.h
Add av_dict_parse_string() to set multiple key/value pairs at once from a
string.
2013-01-25 - 25be630 / b85a5e8 - lavu 52.16.100 / 52.6.0 - avstring.h
Add av_strnstr()
2013-01-15 - e7e0186 / 8ee288d - lavu 52.15.100 / 52.5.0 - hmac.h
Add AVHMAC.
2013-01-13 - 8ee7b38 / 44e065d - lavc 54.87.100 / 54.36.0 - vdpau.h
Add AVVDPAUContext struct for VDPAU hardware-accelerated decoding.
2013-01-12 - dae382b / 169fb94 - lavu 52.14.100 / 52.4.0 - pixdesc.h
Add AV_PIX_FMT_VDPAU flag.
2013-01-07 - 249fca3 / 074a00d - lavr 1.1.0
Add avresample_set_channel_mapping() for input channel reordering,
duplication, and silencing.
2012-12-29 - 2ce43b3 / d8fd06c - lavu 52.13.100 / 52.3.0 - avstring.h
Add av_basename() and av_dirname().
2012-11-11 - 03b0787 / 5980f5d - lavu 52.6.100 / 52.2.0 - audioconvert.h
Rename audioconvert.h to channel_layout.h. audioconvert.h is now deprecated.
2012-11-05 - 7d26be6 / dfde8a3 - lavu 52.5.100 / 52.1.0 - intmath.h
Add av_ctz() for trailing zero bit count
2012-10-21 - e3a91c5 / a893655 - lavu 51.77.100 / 51.45.0 - error.h
Add AVERROR_EXPERIMENTAL
2012-10-12 - a33ed6b / d2fcb35 - lavu 51.76.100 / 51.44.0 - pixdesc.h
Add functions for accessing pixel format descriptors.
Accessing the av_pix_fmt_descriptors array directly is now
deprecated.
2012-10-11 - f391e40 / 9a92aea - lavu 51.75.100 / 51.43.0 - aes.h, md5.h, sha.h, tree.h
Add functions for allocating the opaque contexts for the algorithms,
2012-10-10 - de31814 / b522000 - lavf 54.32.100 / 54.18.0 - avio.h
Add avio_closep to complement avio_close.
2012-10-08 - ae77266 / 78071a1 - lavu 51.74.100 / 51.42.0 - pixfmt.h
Rename PixelFormat to AVPixelFormat and all PIX_FMT_* to AV_PIX_FMT_*.
To provide backwards compatibility, PixelFormat is now #defined as
AVPixelFormat.
Note that this can break user code that includes pixfmt.h and uses the
'PixelFormat' identifier. Such code should either #undef PixelFormat
or stop using the PixelFormat name.
2012-10-05 - 55c49af / e7ba5b1 - lavr 1.0.0 - avresample.h
Data planes parameters to avresample_convert() and
avresample_read() are now uint8_t** instead of void**.
Libavresample is now stable.
2012-09-24 - 46a3595 / a42aada - lavc 54.59.100 / 54.28.0 - avcodec.h
2012-09-23 - xxxxxxx - lavc 54.28.0 - avcodec.h
Add avcodec_free_frame(). This function must now
be used for freeing an AVFrame.
2012-09-12 - e3e09f2 / 8919fee - lavu 51.73.100 / 51.41.0 - audioconvert.h
2012-09-12 - xxxxxxx - lavu 51.41.0 - audioconvert.h
Added AV_CH_LOW_FREQUENCY_2 channel mask value.
2012-09-04 - b21b5b0 / 686a329 - lavu 51.71.100 / 51.40.0 - opt.h
2012-09-04 - xxxxxxx - lavu 51.40.0 - opt.h
Reordered the fields in default_val in AVOption, changed which
default_val field is used for which AVOptionType.
2012-08-30 - 98298eb / a231832 - lavc 54.54.101 / 54.26.1 - avcodec.h
2012-xx-xx - xxxxxxx - lavc 54.26.1 - avcodec.h
Add codec descriptor properties AV_CODEC_PROP_LOSSY and
AV_CODEC_PROP_LOSSLESS.
@@ -462,7 +125,7 @@ lavd 54.4.100 / 54.0.0, lavfi 3.5.0
2012-07-29 - 7c26761 / 681ed00 - lavf 54.22.100 / 54.13.0 - avformat.h
Add AVFMT_FLAG_NOBUFFER for low latency use cases.
2012-07-10 - fbe0245 / f3e5e6f - lavu 51.65.100 / 51.37.0
2012-07-10 - 5fade8a - lavu 51.37.0
Add av_malloc_array() and av_mallocz_array()
2012-06-22 - e847f41 / d3d3a32 - lavu 51.61.100 / 51.34.0
@@ -565,10 +228,6 @@ lavd 54.4.100 / 54.0.0, lavfi 3.5.0
2012-01-24 - 0c3577b - lavfi 2.60.100
Add avfilter_graph_dump.
2012-03-20 - 0ebd836 / 3c90cc2 - lavfo 54.2.0
Deprecate av_read_packet(), use av_read_frame() with
AVFMT_FLAG_NOPARSE | AVFMT_FLAG_NOFILLIN in AVFormatContext.flags
2012-03-05 - lavc 54.10.100 / 54.8.0
f095391 / 6699d07 Add av_get_exact_bits_per_sample()
f095391 / 9524cf7 Add av_get_audio_frame_duration()

View File

@@ -1,31 +1,13 @@
LIBRARIES-$(CONFIG_AVUTIL) += libavutil
LIBRARIES-$(CONFIG_SWSCALE) += libswscale
LIBRARIES-$(CONFIG_SWRESAMPLE) += libswresample
LIBRARIES-$(CONFIG_AVCODEC) += libavcodec
LIBRARIES-$(CONFIG_AVFORMAT) += libavformat
LIBRARIES-$(CONFIG_AVDEVICE) += libavdevice
LIBRARIES-$(CONFIG_AVFILTER) += libavfilter
COMPONENTS-$(CONFIG_AVUTIL) += ffmpeg-utils
COMPONENTS-$(CONFIG_SWSCALE) += ffmpeg-scaler
COMPONENTS-$(CONFIG_SWRESAMPLE) += ffmpeg-resampler
COMPONENTS-$(CONFIG_AVCODEC) += ffmpeg-codecs ffmpeg-bitstream-filters
COMPONENTS-$(CONFIG_AVFORMAT) += ffmpeg-formats ffmpeg-protocols
COMPONENTS-$(CONFIG_AVDEVICE) += ffmpeg-devices
COMPONENTS-$(CONFIG_AVFILTER) += ffmpeg-filters
MANPAGES1 = $(PROGS-yes:%=doc/%.1) $(PROGS-yes:%=doc/%-all.1) $(COMPONENTS-yes:%=doc/%.1)
MANPAGES3 = $(LIBRARIES-yes:%=doc/%.3)
MANPAGES = $(MANPAGES1) $(MANPAGES3)
PODPAGES = $(PROGS-yes:%=doc/%.pod) $(PROGS-yes:%=doc/%-all.pod) $(COMPONENTS-yes:%=doc/%.pod) $(LIBRARIES-yes:%=doc/%.pod)
HTMLPAGES = $(PROGS-yes:%=doc/%.html) $(PROGS-yes:%=doc/%-all.html) $(COMPONENTS-yes:%=doc/%.html) $(LIBRARIES-yes:%=doc/%.html) \
MANPAGES = $(PROGS-yes:%=doc/%.1)
PODPAGES = $(PROGS-yes:%=doc/%.pod)
HTMLPAGES = $(PROGS-yes:%=doc/%.html) \
doc/developer.html \
doc/faq.html \
doc/fate.html \
doc/general.html \
doc/git-howto.html \
doc/nut.html \
doc/platform.html \
doc/syntax.html \
TXTPAGES = doc/fate.txt \
@@ -40,7 +22,6 @@ all-$(CONFIG_DOC): doc
doc: documentation
apidoc: doc/doxy/html
documentation: $(DOCS)
TEXIDEP = awk '/^@(verbatim)?include/ { printf "$@: $(@D)/%s\n", $$2 }' <$< >$(@:%=%.d)
@@ -60,78 +41,37 @@ $(GENTEXI): doc/avoptions_%.texi: doc/print_options$(HOSTEXESUF)
doc/%.html: TAG = HTML
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: TAG = HTML
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 $@ $<
$(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)
doc/%.pod: doc/%.texi $(GENTEXI)
$(Q)$(TEXIDEP)
$(M)perl $(SRC_PATH)/doc/texi2pod.pl -Dconfig-not-all=yes -Idoc $< $@
$(M)perl $(SRC_PATH)/doc/texi2pod.pl -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 $< $@
doc/%.1 doc/%.3: TAG = MAN
doc/%.1: TAG = MAN
doc/%.1: doc/%.pod $(GENTEXI)
$(M)pod2man --section=1 --center=" " --release=" " $< > $@
doc/%.3: doc/%.pod $(GENTEXI)
$(M)pod2man --section=3 --center=" " --release=" " $< > $@
$(DOCS) doc/doxy/html: | doc/
doc/doxy/html: $(SRC_PATH)/doc/Doxyfile $(INSTHEADERS)
$(M)$(SRC_PATH)/doc/doxy-wrapper.sh $(SRC_PATH) $^
install-doc: install-html install-man
install-html:
$(DOCS): | doc/
install-man:
ifdef CONFIG_HTMLPAGES
install-progs-$(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/",$(PROGS-yes:%=%.1) $(PROGS-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
docclean:
$(RM) $(TXTPAGES) doc/*.html doc/*.pod doc/*.1 doc/*.3 $(CLEANSUFFIXES:%=doc/%) doc/avoptions_*.texi
$(RM) -r doc/doxy/html
clean::
$(RM) $(TXTPAGES) doc/*.html doc/*.pod doc/*.1 $(CLEANSUFFIXES:%=doc/%) doc/avoptions_*.texi
-include $(wildcard $(DOCS:%=%.d))
.PHONY: apidoc doc documentation
.PHONY: doc documentation

View File

@@ -1,7 +1,7 @@
Release Notes
=============
* 2.1 "Fourier" October, 2013
* 1.0 "Angel" September, 2012
General notes

View File

@@ -1,11 +0,0 @@
@chapter Authors
The FFmpeg developers.
For details about the authorship, see the Git history of the project
(git://source.ffmpeg.org/ffmpeg), e.g. by typing the command
@command{git log} in the FFmpeg source directory, or browsing the
online repository at @url{http://source.ffmpeg.org}.
Maintainers for the specific components are listed in the file
@file{MAINTAINERS} in the source code tree.

View File

@@ -0,0 +1,200 @@
All the numerical options, if not specified otherwise, accept in input
a string representing a number, which may contain one of the
International System number postfixes, for example 'K', 'M', 'G'.
If 'i' is appended after the postfix, powers of 2 are used instead of
powers of 10. The 'B' postfix multiplies the value for 8, and can be
appended after another postfix or used alone. This allows using for
example 'KB', 'MiB', 'G' and 'B' as 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}.
Note: setting the environment variable @code{FFREPORT} to any value has the
same effect.
@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.
@include avoptions_codec.texi
@include avoptions_format.texi

View File

@@ -17,46 +17,9 @@ 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
@@ -123,6 +86,6 @@ ffmpeg -i frame_%d.jpg -c:v copy rotated.avi
@section noise
@section remove_extra
@section remove_extradata
@c man end BITSTREAM FILTERS

File diff suppressed because it is too large Load Diff

View File

@@ -62,7 +62,7 @@ documented.
@section libcelt
libcelt decoder wrapper.
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.
@@ -70,7 +70,7 @@ You need to explicitly configure the build with @code{--enable-libcelt}.
@section libgsm
libgsm decoder wrapper.
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
@@ -80,7 +80,7 @@ This decoder supports both the ordinary GSM and the Microsoft variant.
@section libilbc
libilbc decoder wrapper.
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
@@ -101,7 +101,7 @@ value is 0 (disabled).
@section libopencore-amrnb
libopencore-amrnb decoder wrapper.
libopencore-amrnb decoder wrapper
libopencore-amrnb allows libavcodec to decode the Adaptive Multi-Rate
Narrowband audio codec. Using it requires the presence of the
@@ -123,80 +123,4 @@ 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}.
@c man end AUDIO DECODERS
@chapter Subtitles Decoders
@c man begin SUBTILES DECODERS
@section dvdsub
This codec decodes the bitmap subtitles used in DVDs; the same subtitles can
also be found in VobSub file pairs and in some Matroska files.
@subsection Options
@table @option
@item palette
Specify the global palette used by the bitmaps. When stored in VobSub, the
palette is normally specified in the index file; in Matroska, the palette is
stored in the codec extra-data in the same format as in VobSub. In DVDs, the
palette is stored in the IFO file, and therefore not available when reading
from dumped VOB files.
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}.
@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

View File

@@ -1,165 +0,0 @@
a.summary-letter {
text-decoration: none;
}
a {
color: #2D6198;
}
a:visited {
color: #884488;
}
#banner {
background-color: white;
position: relative;
text-align: center;
}
#banner img {
padding-bottom: 1px;
padding-top: 5px;
}
#body {
margin-left: 1em;
margin-right: 1em;
}
body {
background-color: #313131;
margin: 0;
text-align: justify;
}
.center {
margin-left: auto;
margin-right: auto;
text-align: center;
}
#container {
background-color: white;
color: #202020;
margin-left: 1em;
margin-right: 1em;
}
#footer {
text-align: center;
}
h1 a, h2 a, h3 a, h4 a {
text-decoration: inherit;
color: inherit;
}
h1, h2, h3, h4 {
padding-left: 0.4em;
border-radius: 4px;
padding-bottom: 0.25em;
padding-top: 0.25em;
border: 1px solid #6A996A;
}
h1 {
background-color: #7BB37B;
color: #151515;
font-size: 1.2em;
padding-bottom: 0.3em;
padding-top: 0.3em;
}
h2 {
color: #313131;
font-size: 1.0em;
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;
}
img {
border: 0;
}
#navbar {
background-color: #738073;
border-bottom: 1px solid #5C665C;
border-top: 1px solid #5C665C;
margin-top: 12px;
padding: 0.3em;
position: relative;
text-align: center;
}
#navbar a, #navbar_secondary a {
color: white;
padding: 0.3em;
text-decoration: none;
}
#navbar a:hover, #navbar_secondary a:hover {
background-color: #313131;
color: white;
text-decoration: none;
}
#navbar_secondary {
background-color: #738073;
border-bottom: 1px solid #5C665C;
border-left: 1px solid #5C665C;
border-right: 1px solid #5C665C;
padding: 0.3em;
position: relative;
text-align: center;
}
p {
margin-left: 1em;
margin-right: 1em;
}
pre {
margin-left: 3em;
margin-right: 3em;
padding: 0.3em;
border: 1px solid #bbb;
background-color: #f7f7f7;
}
dl dt {
font-weight: bold;
}
#proj_desc {
font-size: 1.2em;
}
#repos {
margin-left: 1em;
margin-right: 1em;
border-collapse: collapse;
border: solid 1px #6A996A;
}
#repos th {
background-color: #7BB37B;
border: solid 1px #6A996A;
}
#repos td {
padding: 0.2em;
border: solid 1px #6A996A;
}

View File

@@ -1,155 +1,23 @@
@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
are enabled by default. You can list all available ones using the
configure option @code{--list-demuxers}.
configure option "--list-demuxers".
You can disable all the demuxers using the configure option
@code{--disable-demuxers}, and selectively enable a single demuxer with
the option @code{--enable-demuxer=@var{DEMUXER}}, or disable it
with the option @code{--disable-demuxer=@var{DEMUXER}}.
"--disable-demuxers", and selectively enable a single demuxer with
the option "--enable-demuxer=@var{DEMUXER}", or disable it
with the option "--disable-demuxer=@var{DEMUXER}".
The option @code{-formats} of the ff* tools will display the list of
The option "-formats" of the ff* tools will display the list of
enabled demuxers.
The description of some of the currently available demuxers follows.
@section applehttp
Apple HTTP Live Streaming demuxer.
This demuxer presents all AVStreams from all variant streams.
The id field is set to the bitrate variant index number. By setting
the discard flags on AVStreams (by pressing 'a' or 'v' in ffplay),
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 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
Virtual concatenation script demuxer.
This demuxer reads a list of files and other directives from a text file and
demuxes them one after the other, as if all their packet had been muxed
together.
The timestamps in the files are adjusted so that the first file starts at 0
and each next file starts where the previous one finishes. Note that it is
done globally and may cause gaps if all streams do not have exactly the same
length.
All files must have the same streams (same codecs, same time base, etc.).
The duration of each file is used to adjust the timestamps of the next file:
if the duration is incorrect (because it was computed using the bit-rate or
because the file is truncated, for example), it can cause artifacts. The
@code{duration} directive can be used to override the duration stored in
each file.
@subsection Syntax
The script is a text file in extended-ASCII, with one directive per line.
Empty lines, leading spaces and lines starting with '#' are ignored. The
following directive is recognized:
@table @option
@item @code{file @var{path}}
Path to a file to read; special characters and spaces must be escaped with
backslash or single quotes.
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 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
line of the script.
@item @code{duration @var{dur}}
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.
@end table
@subsection Options
This demuxer accepts the following option:
@table @option
@item safe
If set to 1, reject unsafe file paths. A file path is considered safe if it
does not contain a protocol specification and is relative and all components
only contain characters from the portable character set (letters, digits,
period, underscore and hyphen) and have no period at the beginning of a
component.
If set to 0, any file name is accepted.
The default is -1, it is equivalent to 1 if the format was automatically
probed and 0 otherwise.
@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 image2
Image file demuxer.
@@ -167,7 +35,7 @@ same for all the files in the sequence.
This demuxer accepts the following options:
@table @option
@item framerate
Set the frame rate for the video stream. It defaults to 25.
Set the framerate for the video stream. It defaults to 25.
@item loop
If set to 1, loop over the input. Default value is 0.
@item pattern_type
@@ -245,10 +113,6 @@ 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.
@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.
@@ -262,64 +126,33 @@ 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 mpegts
@section applehttp
MPEG-2 transport stream demuxer.
Apple HTTP Live Streaming demuxer.
@table @option
@item fix_teletext_pts
Overrides 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.
@end table
@section rawvideo
Raw video demuxer.
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.
This demuxer accepts the following options:
@table @option
@item framerate
Set input video frame rate. Default value is 25.
@item pixel_format
Set the input video pixel format. Default value is @code{yuv420p}.
@item video_size
Set the input video size. This value must be specified explicitly.
@end table
For example to read a rawvideo file @file{input.raw} with
@command{ffplay}, assuming a pixel format of @code{rgb24}, a video
size of @code{320x240}, and a frame rate of 10 images per second, use
the command:
@example
ffplay -f rawvideo -pixel_format rgb24 -video_size 320x240 -framerate 10 input.raw
@end example
This demuxer presents all AVStreams from all variant streams.
The id field is set to the bitrate variant index number. By setting
the discard flags on AVStreams (by pressing 'a' or 'v' in ffplay),
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 sbg
@@ -351,25 +184,4 @@ the script is directly played, the actual times will match the absolute
timestamps up to the sound controller's clock accuracy, but if the user
somehow pauses the playback or seeks, all times will be shifted accordingly.
@section tedcaptions
JSON captions used for @url{http://www.ted.com/, TED Talks}.
TED does not provide links to the captions, but they can be guessed from the
page. The file @file{tools/bookmarklets.html} from the FFmpeg source tree
contains a bookmarklet to expose them.
This demuxer accepts the following option:
@table @option
@item start_time
Set the start time of the TED talk, in milliseconds. The default is 15000
(15s). It is used to sync the captions with the downloadable videos, because
they include a 15s intro.
@end table
Example: convert the captions to a format most players understand:
@example
ffmpeg -i http://www.ted.com/talks/subtitles/id/1/lang/en talk1-en.srt
@end example
@c man end DEMUXERS
@c man end INPUT DEVICES

View File

@@ -11,23 +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
@@ -51,16 +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.
@@ -114,17 +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
@@ -136,72 +135,46 @@ 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
@subsection Naming conventions
All names should be composed with underscores (_), not CamelCase. For example,
@samp{avfilter_get_video_buffer} is an acceptable function name and
@samp{AVFilterGetVideo} is not. The exception from this are type names, like
All names are using underscores (_), not CamelCase. For example, @samp{avfilter_get_video_buffer} is
a valid function name and @samp{AVFilterGetVideo} is not. The exception from this are type names, like
for example structs and enums; they should always be in the CamelCase
There are the following conventions for naming variables and functions:
There are 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 prefixes are 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 the library, @code{ff_} prefix
should be used.
For example, @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,
@code{avcodec_} for libavcodec, @code{swr_} for libswresample, etc).
Check the existing code and choose names accordingly.
Note that some symbols without these prefixes are also exported for
retro-compatibility reasons. These exceptions are declared in the
@code{lib<name>/lib<name>.v} files.
For exported names, each library has its own prefixes. Just check the existing
code and name accordingly.
@end itemize
Furthermore, name space reserved for the system should not be invaded.
Identifiers ending in @code{_t} are reserved by
@url{http://pubs.opengroup.org/onlinepubs/007904975/functions/xsh_chap02_02.html#tag_02_02_02, POSIX}.
Also avoid names starting with @code{__} or @code{_} followed by an uppercase
letter as they are reserved by the C standard. Names starting with @code{_}
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
@subsection Miscellanous 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.
@@ -217,8 +190,8 @@ set shiftwidth=4
set softtabstop=4
set cindent
set cinoptions=(0
" Allow tabs in Makefiles.
autocmd FileType make,automake set noexpandtab shiftwidth=8 softtabstop=8
" allow tabs in Makefiles
autocmd FileType make set noexpandtab shiftwidth=8 softtabstop=8
" Trailing whitespace and tabs are forbidden, so highlight them.
highlight ForbiddenWhitespace ctermbg=red guibg=red
match ForbiddenWhitespace /\s\+$\|\t/
@@ -244,158 +217,124 @@ For Emacs, add these roughly equivalent lines to your @file{.emacs.d/init.el}:
@enumerate
@item
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://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.
Contributions should be licensed under the LGPL 2.1, including an
"or any later version" clause, or the MIT license. GPL 2 including
an "or any later version" clause is also acceptable, but LGPL is
preferred.
@item
You must not commit code which breaks FFmpeg! (Meaning unfinished but
enabled code which breaks compilation or compiles but does not work or
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.
You must not commit code which breaks FFmpeg! (Meaning unfinished but
enabled code which breaks compilation or compiles but does not work or
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
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.
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
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.
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
depend on B, then A can and should be committed first and separate from B.
Keeping changes well split into self-contained parts makes reviewing and
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 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
depend on B, then A can and should be committed first and separate from B.
Keeping changes well split into self-contained parts makes reviewing and
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.
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 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.
Do not commit changes to the build system (Makefiles, configure script)
which change behavior, defaults etc, without asking first. The same
applies to compiler warning fixes, trivial looking fixes and to code
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
Do not commit changes to the build system (Makefiles, configure script)
which change behavior, defaults etc, without asking first. The same
applies to compiler warning fixes, trivial looking fixes and to code
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.
We refuse source indentation and other cosmetic changes if they are mixed
with functional changes, such commits will be rejected and removed. Every
developer has his own indentation style, you should not change it. Of course
if you (re)write something, you can use your own style, even though we would
prefer if the indentation throughout FFmpeg was consistent (Many projects
force a given indentation style - we do not.). If you really need to make
indentation changes (try to avoid this), separate them strictly from real
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
We refuse source indentation and other cosmetic changes if they are mixed
with functional changes, such commits will be rejected and removed. Every
developer has his own indentation style, you should not change it. Of course
if you (re)write something, you can use your own style, even though we would
prefer if the indentation throughout FFmpeg was consistent (Many projects
force a given indentation style - we do not.). If you really need to make
indentation changes (try to avoid this), separate them strictly from real
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
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:
area changed: Short 1 line description
details describing what and why and giving references.
@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:
area changed: Short 1 line description
details describing what and why and giving references.
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
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.
When applying patches that have been discussed (at length) on the mailing
list, reference the thread in the log message.
@item
When applying patches that have been discussed (at length) on the mailing
list, reference the thread in the log message.
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
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!
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
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.
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
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.
Try to keep important discussions and requests (also) on the public
developer mailing list, so that all developers can benefit from them.
@item
Try to keep important discussions and requests (also) on the public
developer mailing list, so that all developers can benefit from them.
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
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.
Remember to check if you need to bump versions for the specific libav*
parts (libavutil, libavcodec, libavformat) you are changing. You need
to change the version integer.
Incrementing the first component means no backward compatibility to
previous versions (e.g. removal of a function from the public API).
Incrementing the second component means backward compatible change
(e.g. addition of a function to the public API or extension of an
existing data structure).
Incrementing the third component means a noteworthy binary compatible
change (e.g. encoder bug fix that matters for the decoder).
@item
Remember to check if you need to bump versions for the specific libav*
parts (libavutil, libavcodec, libavformat) you are changing. You need
to change the version integer.
Incrementing the first component means no backward compatibility to
previous versions (e.g. removal of a function from the public API).
Incrementing the second component means backward compatible change
(e.g. addition of a function to the public API or extension of an
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.
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
be disabled, not the code changed.
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
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
be disabled, not the code changed.
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.
Note, these rules are mostly borrowed from the MPlayer project.
@anchor{Submitting patches}
@section Submitting patches
@@ -418,6 +357,11 @@ The tool is located in the tools directory.
Run the @ref{Regression tests} before submitting a patch in order to verify
it does not cause unexpected problems.
Patches should be posted as base64 encoded attachments (or any other
encoding which ensures that the patch will not be trashed during
transmission) to the ffmpeg-devel mailing list, see
@url{http://lists.ffmpeg.org/mailman/listinfo/ffmpeg-devel}
It also helps quite a bit if you tell us what the patch does (for example
'replaces lrint by lrintf'), and why (for example '*BSD isn't C99 compliant
and has no lrint()')
@@ -425,13 +369,6 @@ and has no lrint()')
Also please if you send several patches, send each patch as a separate mail,
do not attach several unrelated patches to the same mail.
Patches should be posted to the
@uref{http://lists.ffmpeg.org/mailman/listinfo/ffmpeg-devel, ffmpeg-devel}
mailing list. Use @code{git send-email} when possible since it will properly
send patches without requiring extra care. If you cannot, then send patches
as base64-encoded attachments, so your patch is not trashed during
transmission.
Your patch will be reviewed on the mailing list. You will likely be asked
to make some changes and are expected to send in an improved version that
incorporates the requests from the review. This process may go through
@@ -446,51 +383,40 @@ 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?
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?
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}?
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}?
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}.
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?
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.
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}?
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?
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?
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?
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}
(or @code{--enable-demuxer} or whatever your component is)?
Did you make sure it compiles standalone, i.e. with
@code{configure --disable-everything --enable-decoder=foo}
(or @code{--enable-demuxer} or whatever your component is)?
@end enumerate
@@ -498,109 +424,77 @@ Did you make sure it compiles standalone, i.e. with
@enumerate
@item
Does @code{make fate} pass with the patch applied?
Does @code{make fate} pass with the patch applied?
@item
Was the patch generated with git format-patch or send-email?
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.
Did you sign off your patch? (git commit -s)
See @url{http://kerneltrap.org/files/Jeremy/DCO.txt} for the meaning
of sign off.
@item
Did you provide a clear git commit log message?
Did you provide a clear git commit log message?
@item
Is the patch against latest FFmpeg git master branch?
Is the patch against latest FFmpeg git master branch?
@item
Are you subscribed to ffmpeg-devel?
(the list is subscribers only due to spam)
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?
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?
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?
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?
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.
Did you test your decoder or demuxer against damaged data? If no, see
tools/trasher and the noise bitstream filter. Your decoder or demuxer
should not crash or end in a (near) infinite loop when fed damaged data.
@item
Does the patch not mix functional and cosmetic changes?
Does the patch not mix functional and cosmetic changes?
@item
Did you add tabs or trailing whitespace to the code? Both are forbidden.
Did you add tabs or trailing whitespace to the code? Both are forbidden.
@item
Is the patch attached to the email you send?
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.
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?
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
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?
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?
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?
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?
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.
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.
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.
Lines with similar content should be aligned vertically when doing so
improves readability.
@item
Consider to add a regression test for your code.
Consider to add a regression test for your code.
@item
If you added YASM code please check that things still work with --disable-yasm
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.
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.
@end enumerate
@section Patch review process
@@ -653,145 +547,4 @@ 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

View File

@@ -1,21 +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
@include indevs.texi
@include outdevs.texi

View File

@@ -1,14 +0,0 @@
#!/bin/sh
SRC_PATH="${1}"
DOXYFILE="${2}"
shift 2
doxygen - <<EOF
@INCLUDE = ${DOXYFILE}
INPUT = $@
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

File diff suppressed because it is too large Load Diff

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@@ -1,9 +1,10 @@
</div>
<div id="footer">
Generated on $datetime for $projectname by&#160;<a href="http://www.doxygen.org/index.html">doxygen</a> $doxygenversion
</div>
<footer class="footer pagination-right">
<span class="label label-info">
Generated on $datetime for $projectname by&#160;<a href="http://www.doxygen.org/index.html">doxygen</a> $doxygenversion
</span>
</footer>
</div>
</body>
</html>

View File

@@ -1,16 +1,14 @@
<!DOCTYPE html>
<html>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
<meta http-equiv="Content-Type" content="text/xhtml;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">
<div id="container">
<!--Header replace -->
<div class="menu">
<div id="body">
<div>

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252
doc/eval.texi Normal file
View File

@@ -0,0 +1,252 @@
@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 sinh(x)
Compute hyperbolic sine of @var{x}.
@item cosh(x)
Compute hyperbolic cosine of @var{x}.
@item tanh(x)
Compute hyperbolic tangent of @var{x}.
@item sin(x)
Compute sine of @var{x}.
@item cos(x)
Compute cosine of @var{x}.
@item tan(x)
Compute tangent of @var{x}.
@item atan(x)
Compute arctangent of @var{x}.
@item asin(x)
Compute arcsine of @var{x}.
@item acos(x)
Compute arccosine of @var{x}.
@item exp(x)
Compute exponential of @var{x} (with base @code{e}, the Euler's number).
@item log(x)
Compute natural logarithm of @var{x}.
@item abs(x)
Compute absolute value of @var{x}.
@item squish(x)
Compute expression @code{1/(1 + exp(4*x))}.
@item gauss(x)
Compute Gauss function of @var{x}, corresponding to
@code{exp(-x*x/2) / sqrt(2*PI)}.
@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 mod(x, y)
Compute the remainder of division of @var{x} by @var{y}.
@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 eq(x, y)
Return 1 if @var{x} and @var{y} are equivalent, 0 otherwise.
@item gte(x, y)
Return 1 if @var{x} is greater than or equal to @var{y}, 0 otherwise.
@item gt(x, y)
Return 1 if @var{x} is greater 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 lt(x, y)
Return 1 if @var{x} is lesser than @var{y}, 0 otherwise.
@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 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 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.
@item ceil(expr)
Round the value of expression @var{expr} upwards to the nearest
integer. For example, "ceil(1.5)" is "2.0".
@item floor(expr)
Round the value of expression @var{expr} downwards to the nearest
integer. For example, "floor(-1.5)" is "-2.0".
@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 sqrt(expr)
Compute the square root of @var{expr}. This is equivalent to
"(@var{expr})^.5".
@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 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 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 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 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 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 taylor(expr, x) taylor(expr, x, id)
Evaluate a taylor series at x.
expr represents the LD(id)-th derivates of f(x) at 0. If id is not specified
then 0 is assumed.
note, when you have the derivatives at y instead of 0
taylor(expr, x-y) can be used
When the series does not converge the results are undefined.
@item root(expr, max)
Finds x where f(x)=0 in the interval 0..max.
f() must be continuous or the result is undefined.
@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
and the construct:
@example
if A then B else C
@end example
is equivalent to
@example
if(A,B) + ifnot(A,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 number
postfixes. If 'i' is appended after the postfix, powers of 2 are used
instead of powers of 10. The 'B' postfix multiplies the value for 8,
and can be appended after another postfix or used alone. This allows
using for example 'KB', 'MiB', 'G' and 'B' as postfix.
Follows the list of available International System postfixes, with
indication of the corresponding powers of 10 and of 2.
@table @option
@item y
-24 / -80
@item z
-21 / -70
@item a
-18 / -60
@item f
-15 / -50
@item p
-12 / -40
@item n
-9 / -30
@item u
-6 / -20
@item m
-3 / -10
@item c
-2
@item d
-1
@item h
2
@item k
3 / 10
@item K
3 / 10
@item M
6 / 20
@item G
9 / 30
@item T
12 / 40
@item P
15 / 40
@item E
18 / 50
@item Z
21 / 60
@item Y
24 / 70
@end table
@c man end

View File

@@ -7,7 +7,7 @@ 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)) $(LDLIBS)
@@ -17,7 +17,6 @@ EXAMPLES= decoding_encoding \
filtering_audio \
metadata \
muxing \
resampling_audio \
scaling_video \
OBJS=$(addsuffix .o,$(EXAMPLES))
@@ -25,7 +24,6 @@ OBJS=$(addsuffix .o,$(EXAMPLES))
# the following examples make explicit use of the math library
decoding_encoding: LDLIBS += -lm
muxing: LDLIBS += -lm
resampling_audio: LDLIBS += -lm
.phony: all clean-test clean

View File

@@ -1,18 +0,0 @@
FFmpeg examples README
----------------------
Both following use cases rely on pkg-config and make, thus make sure
that you have them installed and working on your system.
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.
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 you can go into
doc/examples and run a command such as PKG_CONFIG_PATH=pc-uninstalled make.

View File

@@ -27,14 +27,13 @@
* 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>
#include <libavutil/opt.h>
#include <libavcodec/avcodec.h>
#include <libavutil/channel_layout.h>
#include <libavutil/audioconvert.h>
#include <libavutil/common.h>
#include <libavutil/imgutils.h>
#include <libavutil/mathematics.h>
@@ -79,7 +78,7 @@ 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 +87,9 @@ 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++;
}
@@ -122,10 +121,6 @@ static void audio_encode_example(const char *filename)
}
c = avcodec_alloc_context3(codec);
if (!c) {
fprintf(stderr, "Could not allocate audio codec context\n");
exit(1);
}
/* put sample parameters */
c->bit_rate = 64000;
@@ -257,10 +252,6 @@ static void audio_decode_example(const char *outfilename, const char *filename)
}
c = avcodec_alloc_context3(codec);
if (!c) {
fprintf(stderr, "Could not allocate audio codec context\n");
exit(1);
}
/* open it */
if (avcodec_open2(c, codec, NULL) < 0) {
@@ -355,10 +346,6 @@ static void video_encode_example(const char *filename, int codec_id)
}
c = avcodec_alloc_context3(codec);
if (!c) {
fprintf(stderr, "Could not allocate video codec context\n");
exit(1);
}
/* put sample parameters */
c->bit_rate = 400000;
@@ -369,7 +356,7 @@ static void video_encode_example(const char *filename, int codec_id)
c->time_base= (AVRational){1,25};
c->gop_size = 10; /* emit one intra frame every ten frames */
c->max_b_frames=1;
c->pix_fmt = AV_PIX_FMT_YUV420P;
c->pix_fmt = PIX_FMT_YUV420P;
if(codec_id == AV_CODEC_ID_H264)
av_opt_set(c->priv_data, "preset", "slow", 0);
@@ -488,42 +475,15 @@ static void pgm_save(unsigned char *buf, int wrap, int xsize, int ysize,
fclose(f);
}
static int decode_write_frame(const char *outfilename, AVCodecContext *avctx,
AVFrame *frame, int *frame_count, AVPacket *pkt, int last)
{
int len, got_frame;
char buf[1024];
len = avcodec_decode_video2(avctx, frame, &got_frame, pkt);
if (len < 0) {
fprintf(stderr, "Error while decoding frame %d\n", *frame_count);
return len;
}
if (got_frame) {
printf("Saving %sframe %3d\n", last ? "last " : "", *frame_count);
fflush(stdout);
/* 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],
avctx->width, avctx->height, buf);
(*frame_count)++;
}
if (pkt->data) {
pkt->size -= len;
pkt->data += len;
}
return 0;
}
static void video_decode_example(const char *outfilename, const char *filename)
{
AVCodec *codec;
AVCodecContext *c= NULL;
int frame_count;
int frame, got_picture, len;
FILE *f;
AVFrame *frame;
AVFrame *picture;
uint8_t inbuf[INBUF_SIZE + FF_INPUT_BUFFER_PADDING_SIZE];
char buf[1024];
AVPacket avpkt;
av_init_packet(&avpkt);
@@ -541,11 +501,6 @@ static void video_decode_example(const char *outfilename, const char *filename)
}
c = avcodec_alloc_context3(codec);
if (!c) {
fprintf(stderr, "Could not allocate video codec context\n");
exit(1);
}
if(codec->capabilities&CODEC_CAP_TRUNCATED)
c->flags|= CODEC_FLAG_TRUNCATED; /* we do not send complete frames */
@@ -559,19 +514,21 @@ static void video_decode_example(const char *outfilename, const char *filename)
exit(1);
}
/* the codec gives us the frame size, in samples */
f = fopen(filename, "rb");
if (!f) {
fprintf(stderr, "Could not open %s\n", filename);
exit(1);
}
frame = avcodec_alloc_frame();
if (!frame) {
picture = avcodec_alloc_frame();
if (!picture) {
fprintf(stderr, "Could not allocate video frame\n");
exit(1);
}
frame_count = 0;
frame = 0;
for(;;) {
avpkt.size = fread(inbuf, 1, INBUF_SIZE, f);
if (avpkt.size == 0)
@@ -593,9 +550,26 @@ static void video_decode_example(const char *outfilename, const char *filename)
/* here, we use a stream based decoder (mpeg1video), so we
feed decoder and see if it could decode a frame */
avpkt.data = inbuf;
while (avpkt.size > 0)
if (decode_write_frame(outfilename, c, frame, &frame_count, &avpkt, 0) < 0)
while (avpkt.size > 0) {
len = avcodec_decode_video2(c, picture, &got_picture, &avpkt);
if (len < 0) {
fprintf(stderr, "Error while decoding frame %d\n", frame);
exit(1);
}
if (got_picture) {
printf("Saving frame %3d\n", frame);
fflush(stdout);
/* the picture is allocated by the decoder. no need to
free it */
snprintf(buf, sizeof(buf), outfilename, frame);
pgm_save(picture->data[0], picture->linesize[0],
c->width, c->height, buf);
frame++;
}
avpkt.size -= len;
avpkt.data += len;
}
}
/* some codecs, such as MPEG, transmit the I and P frame with a
@@ -603,13 +577,24 @@ static void video_decode_example(const char *outfilename, const char *filename)
chance to get the last frame of the video */
avpkt.data = NULL;
avpkt.size = 0;
decode_write_frame(outfilename, c, frame, &frame_count, &avpkt, 1);
len = avcodec_decode_video2(c, picture, &got_picture, &avpkt);
if (got_picture) {
printf("Saving last frame %3d\n", frame);
fflush(stdout);
/* the picture is allocated by the decoder. no need to
free it */
snprintf(buf, sizeof(buf), outfilename, frame);
pgm_save(picture->data[0], picture->linesize[0],
c->width, c->height, buf);
frame++;
}
fclose(f);
avcodec_close(c);
av_free(c);
avcodec_free_frame(&frame);
avcodec_free_frame(&picture);
printf("\n");
}
@@ -625,8 +610,8 @@ int main(int argc, char **argv)
"API example program to decode/encode a media stream with libavcodec.\n"
"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 choosen between 'h264', 'mp2', 'mpg'.\n",
"The encoded stream is then decoded and written to a raw data output\n."
"output_type must be choosen between 'h264', 'mp2', 'mpg'\n",
argv[0]);
return 1;
}

View File

@@ -26,7 +26,6 @@
*
* Show how to use the libavformat and libavcodec API to demux and
* decode audio and video data.
* @example doc/examples/demuxing.c
*/
#include <libavutil/imgutils.h>
@@ -47,6 +46,10 @@ 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;
@@ -56,7 +59,6 @@ static int audio_frame_count = 0;
static int decode_packet(int *got_frame, int cached)
{
int ret = 0;
int decoded = pkt.size;
if (pkt.stream_index == video_stream_idx) {
/* decode video frame */
@@ -88,32 +90,37 @@ static int decode_packet(int *got_frame, int cached)
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, frame->channels,
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, frame->channels,
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, frame->channels, frame->format);
/* write to rawaudio file */
fwrite(audio_dst_data[0], 1, audio_dst_bufsize, audio_dst_file);
av_freep(&audio_dst_data[0]);
}
}
return decoded;
return ret;
}
static int open_codec_context(int *stream_idx,
@@ -201,7 +208,7 @@ int main (int argc, char **argv)
/* register all formats and codecs */
av_register_all();
/* open input file, and allocate format context */
/* open input file, and allocated format context */
if (avformat_open_input(&fmt_ctx, src_filename, NULL, NULL) < 0) {
fprintf(stderr, "Could not open source file %s\n", src_filename);
exit(1);
@@ -235,7 +242,12 @@ int main (int argc, char **argv)
video_dst_bufsize = ret;
}
/* dump input information to stderr */
av_dump_format(fmt_ctx, 0, src_filename, 0);
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");
@@ -244,10 +256,16 @@ int main (int argc, char **argv)
ret = 1;
goto end;
}
}
/* dump input information to stderr */
av_dump_format(fmt_ctx, 0, src_filename, 0);
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;
}
}
if (!audio_stream && !video_stream) {
fprintf(stderr, "Could not find audio or video stream in the input, aborting\n");
@@ -270,20 +288,11 @@ int main (int argc, char **argv)
if (video_stream)
printf("Demuxing video from file '%s' into '%s'\n", src_filename, video_dst_filename);
if (audio_stream)
printf("Demuxing audio from file '%s' into '%s'\n", src_filename, audio_dst_filename);
printf("Demuxing video from file '%s' into '%s'\n", src_filename, audio_dst_filename);
/* 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);
}
while (av_read_frame(fmt_ctx, &pkt) >= 0)
decode_packet(&got_frame, 0);
/* flush cached frames */
pkt.data = NULL;
@@ -302,25 +311,13 @@ int main (int argc, char **argv)
}
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);
}
@@ -336,6 +333,7 @@ end:
fclose(audio_dst_file);
av_free(frame);
av_free(video_dst_data[0]);
av_free(audio_dst_data);
return ret < 0;
}

View File

@@ -25,7 +25,6 @@
/**
* @file
* API example for audio decoding and filtering
* @example doc/examples/filtering_audio.c
*/
#include <unistd.h>
@@ -36,10 +35,9 @@
#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 +69,6 @@ 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) {
@@ -87,12 +84,11 @@ static int init_filters(const char *filters_descr)
char args[512];
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;
@@ -113,34 +109,16 @@ static int init_filters(const char *filters_descr)
}
/* 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");
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");
return ret;
}
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");
return ret;
}
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");
return ret;
}
/* Endpoints for the filter graph. */
outputs->name = av_strdup("in");
outputs->filter_ctx = buffersrc_ctx;
@@ -152,7 +130,7 @@ static int init_filters(const char *filters_descr)
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)
return ret;
@@ -171,10 +149,11 @@ static int init_filters(const char *filters_descr)
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) {
@@ -189,14 +168,9 @@ int main(int argc, char **argv)
{
int ret;
AVPacket packet;
AVFrame *frame = av_frame_alloc();
AVFrame *filt_frame = av_frame_alloc();
AVFrame frame;
int got_frame;
if (!frame || !filt_frame) {
perror("Could not allocate frame");
exit(1);
}
if (argc != 2) {
fprintf(stderr, "Usage: %s file | %s\n", argv[0], player);
exit(1);
@@ -213,13 +187,14 @@ int main(int argc, char **argv)
/* read all packets */
while (1) {
AVFilterBufferRef *samplesref;
if ((ret = av_read_frame(fmt_ctx, &packet)) < 0)
break;
if (packet.stream_index == audio_stream_index) {
avcodec_get_frame_defaults(frame);
avcodec_get_frame_defaults(&frame);
got_frame = 0;
ret = avcodec_decode_audio4(dec_ctx, frame, &got_frame, &packet);
ret = avcodec_decode_audio4(dec_ctx, &frame, &got_frame, &packet);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Error decoding audio\n");
continue;
@@ -227,20 +202,22 @@ int main(int argc, char **argv)
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);
}
}
}
}
@@ -251,8 +228,6 @@ end:
if (dec_ctx)
avcodec_close(dec_ctx);
avformat_close_input(&fmt_ctx);
av_frame_free(&frame);
av_frame_free(&filt_frame);
if (ret < 0 && ret != AVERROR_EOF) {
char buf[1024];

View File

@@ -24,7 +24,6 @@
/**
* @file
* API example for decoding and filtering
* @example doc/examples/filtering_video.c
*/
#define _XOPEN_SOURCE 600 /* for usleep */
@@ -85,10 +84,10 @@ static int init_filters(const char *filters_descr)
char args[512];
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();
enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_GRAY8, AV_PIX_FMT_NONE };
enum PixelFormat pix_fmts[] = { PIX_FMT_GRAY8, PIX_FMT_NONE };
AVBufferSinkParams *buffersink_params;
filter_graph = avfilter_graph_alloc();
@@ -129,7 +128,7 @@ static int init_filters(const char *filters_descr)
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)
return ret;
@@ -138,33 +137,33 @@ static int init_filters(const char *filters_descr)
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);
}
@@ -173,14 +172,9 @@ int main(int argc, char **argv)
{
int ret;
AVPacket packet;
AVFrame *frame = av_frame_alloc();
AVFrame *filt_frame = av_frame_alloc();
AVFrame frame;
int got_frame;
if (!frame || !filt_frame) {
perror("Could not allocate frame");
exit(1);
}
if (argc != 2) {
fprintf(stderr, "Usage: %s file\n", argv[0]);
exit(1);
@@ -197,36 +191,40 @@ 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);
avcodec_get_frame_defaults(&frame);
got_frame = 0;
ret = avcodec_decode_video2(dec_ctx, frame, &got_frame, &packet);
ret = avcodec_decode_video2(dec_ctx, &frame, &got_frame, &packet);
if (ret < 0) {
av_log(NULL, AV_LOG_ERROR, "Error decoding video\n");
break;
}
if (got_frame) {
frame->pts = av_frame_get_best_effort_timestamp(frame);
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);
}
}
}
}
@@ -237,8 +235,6 @@ end:
if (dec_ctx)
avcodec_close(dec_ctx);
avformat_close_input(&fmt_ctx);
av_frame_free(&frame);
av_frame_free(&filt_frame);
if (ret < 0 && ret != AVERROR_EOF) {
char buf[1024];

View File

@@ -23,7 +23,6 @@
/**
* @file
* Shows how the metadata API can be used in application programs.
* @example doc/examples/metadata.c
*/
#include <stdio.h>

View File

@@ -26,7 +26,6 @@
*
* Output a media file in any supported libavformat format.
* The default codecs are used.
* @example doc/examples/muxing.c
*/
#include <stdlib.h>
@@ -34,32 +33,38 @@
#include <string.h>
#include <math.h>
#include <libavutil/opt.h>
#include <libavutil/mathematics.h>
#include <libavformat/avformat.h>
#include <libswscale/swscale.h>
#include <libswresample/swresample.h>
/* 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 STREAM_PIX_FMT PIX_FMT_YUV420P /* default pix_fmt */
static int sws_flags = SWS_BICUBIC;
/* Add an output stream. */
static AVStream *add_stream(AVFormatContext *oc, AVCodec **codec,
enum AVCodecID codec_id)
/**************************************************************/
/* audio output */
static float t, tincr, tincr2;
static int16_t *samples;
static int audio_input_frame_size;
/*
* add an audio output stream
*/
static AVStream *add_audio_stream(AVFormatContext *oc, AVCodec **codec,
enum AVCodecID codec_id)
{
AVCodecContext *c;
AVStream *st;
/* find the encoder */
/* find the audio encoder */
*codec = avcodec_find_encoder(codec_id);
if (!(*codec)) {
fprintf(stderr, "Could not find encoder for '%s'\n",
avcodec_get_name(codec_id));
fprintf(stderr, "Could not find codec\n");
exit(1);
}
@@ -68,82 +73,32 @@ static AVStream *add_stream(AVFormatContext *oc, AVCodec **codec,
fprintf(stderr, "Could not allocate stream\n");
exit(1);
}
st->id = oc->nb_streams-1;
st->id = 1;
c = st->codec;
switch ((*codec)->type) {
case AVMEDIA_TYPE_AUDIO:
c->sample_fmt = AV_SAMPLE_FMT_FLTP;
c->bit_rate = 64000;
c->sample_rate = 44100;
c->channels = 2;
break;
/* put sample parameters */
c->sample_fmt = AV_SAMPLE_FMT_S16;
c->bit_rate = 64000;
c->sample_rate = 44100;
c->channels = 2;
case AVMEDIA_TYPE_VIDEO:
c->codec_id = codec_id;
c->bit_rate = 400000;
/* Resolution must be a multiple of two. */
c->width = 352;
c->height = 288;
/* timebase: This is the fundamental unit of time (in seconds) in terms
* of which frame timestamps are represented. For fixed-fps content,
* timebase should be 1/framerate and timestamp increments should be
* identical to 1. */
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) {
/* just for testing, we also add B frames */
c->max_b_frames = 2;
}
if (c->codec_id == AV_CODEC_ID_MPEG1VIDEO) {
/* Needed to avoid using macroblocks in which some coeffs overflow.
* This does not happen with normal video, it just happens here as
* the motion of the chroma plane does not match the luma plane. */
c->mb_decision = 2;
}
break;
default:
break;
}
/* Some formats want stream headers to be separate. */
// some formats want stream headers to be separate
if (oc->oformat->flags & AVFMT_GLOBALHEADER)
c->flags |= CODEC_FLAG_GLOBAL_HEADER;
return st;
}
/**************************************************************/
/* audio output */
static float t, tincr, tincr2;
static uint8_t **src_samples_data;
static int src_samples_linesize;
static int src_nb_samples;
static int max_dst_nb_samples;
uint8_t **dst_samples_data;
int dst_samples_linesize;
int dst_samples_size;
struct SwrContext *swr_ctx = NULL;
static void open_audio(AVFormatContext *oc, AVCodec *codec, AVStream *st)
{
AVCodecContext *c;
int ret;
c = st->codec;
/* open it */
ret = avcodec_open2(c, codec, NULL);
if (ret < 0) {
fprintf(stderr, "Could not open audio codec: %s\n", av_err2str(ret));
if (avcodec_open2(c, codec, NULL) < 0) {
fprintf(stderr, "could not open codec\n");
exit(1);
}
@@ -153,51 +108,13 @@ static void open_audio(AVFormatContext *oc, AVCodec *codec, AVStream *st)
/* increment frequency by 110 Hz per second */
tincr2 = 2 * M_PI * 110.0 / c->sample_rate / c->sample_rate;
src_nb_samples = c->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE ?
10000 : c->frame_size;
ret = av_samples_alloc_array_and_samples(&src_samples_data, &src_samples_linesize, c->channels,
src_nb_samples, c->sample_fmt, 0);
if (ret < 0) {
fprintf(stderr, "Could not allocate source samples\n");
exit(1);
}
/* create resampler context */
if (c->sample_fmt != AV_SAMPLE_FMT_S16) {
swr_ctx = swr_alloc();
if (!swr_ctx) {
fprintf(stderr, "Could not allocate resampler context\n");
exit(1);
}
/* set options */
av_opt_set_int (swr_ctx, "in_channel_count", c->channels, 0);
av_opt_set_int (swr_ctx, "in_sample_rate", c->sample_rate, 0);
av_opt_set_sample_fmt(swr_ctx, "in_sample_fmt", AV_SAMPLE_FMT_S16, 0);
av_opt_set_int (swr_ctx, "out_channel_count", c->channels, 0);
av_opt_set_int (swr_ctx, "out_sample_rate", c->sample_rate, 0);
av_opt_set_sample_fmt(swr_ctx, "out_sample_fmt", c->sample_fmt, 0);
/* initialize the resampling context */
if ((ret = swr_init(swr_ctx)) < 0) {
fprintf(stderr, "Failed to initialize the resampling context\n");
exit(1);
}
}
/* compute the number of converted samples: buffering is avoided
* ensuring that the output buffer will contain at least all the
* converted input samples */
max_dst_nb_samples = src_nb_samples;
ret = av_samples_alloc_array_and_samples(&dst_samples_data, &dst_samples_linesize, c->channels,
max_dst_nb_samples, c->sample_fmt, 0);
if (ret < 0) {
fprintf(stderr, "Could not allocate destination samples\n");
exit(1);
}
dst_samples_size = av_samples_get_buffer_size(NULL, c->channels, max_dst_nb_samples,
c->sample_fmt, 0);
if (c->codec->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE)
audio_input_frame_size = 10000;
else
audio_input_frame_size = c->frame_size;
samples = av_malloc(audio_input_frame_size *
av_get_bytes_per_sample(c->sample_fmt) *
c->channels);
}
/* Prepare a 16 bit dummy audio frame of 'frame_size' samples and
@@ -222,62 +139,28 @@ static void write_audio_frame(AVFormatContext *oc, AVStream *st)
AVCodecContext *c;
AVPacket pkt = { 0 }; // data and size must be 0;
AVFrame *frame = avcodec_alloc_frame();
int got_packet, ret, dst_nb_samples;
int got_packet;
av_init_packet(&pkt);
c = st->codec;
get_audio_frame((int16_t *)src_samples_data[0], src_nb_samples, c->channels);
/* convert samples from native format to destination codec format, using the resampler */
if (swr_ctx) {
/* compute destination number of samples */
dst_nb_samples = av_rescale_rnd(swr_get_delay(swr_ctx, c->sample_rate) + src_nb_samples,
c->sample_rate, c->sample_rate, AV_ROUND_UP);
if (dst_nb_samples > max_dst_nb_samples) {
av_free(dst_samples_data[0]);
ret = av_samples_alloc(dst_samples_data, &dst_samples_linesize, c->channels,
dst_nb_samples, c->sample_fmt, 0);
if (ret < 0)
exit(1);
max_dst_nb_samples = dst_nb_samples;
dst_samples_size = av_samples_get_buffer_size(NULL, c->channels, dst_nb_samples,
c->sample_fmt, 0);
}
/* convert to destination format */
ret = swr_convert(swr_ctx,
dst_samples_data, dst_nb_samples,
(const uint8_t **)src_samples_data, src_nb_samples);
if (ret < 0) {
fprintf(stderr, "Error while converting\n");
exit(1);
}
} else {
dst_samples_data[0] = src_samples_data[0];
dst_nb_samples = src_nb_samples;
}
frame->nb_samples = 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,
dst_samples_data[0], dst_samples_size, 0);
ret = avcodec_encode_audio2(c, &pkt, frame, &got_packet);
if (ret < 0) {
fprintf(stderr, "Error encoding audio frame: %s\n", av_err2str(ret));
exit(1);
}
(uint8_t *)samples,
audio_input_frame_size *
av_get_bytes_per_sample(c->sample_fmt) *
c->channels, 1);
avcodec_encode_audio2(c, &pkt, frame, &got_packet);
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));
if (av_interleaved_write_frame(oc, &pkt) != 0) {
fprintf(stderr, "Error while writing audio frame\n");
exit(1);
}
avcodec_free_frame(&frame);
@@ -286,8 +169,8 @@ static void write_audio_frame(AVFormatContext *oc, AVStream *st)
static void close_audio(AVFormatContext *oc, AVStream *st)
{
avcodec_close(st->codec);
av_free(src_samples_data[0]);
av_free(dst_samples_data[0]);
av_free(samples);
}
/**************************************************************/
@@ -295,7 +178,64 @@ static void close_audio(AVFormatContext *oc, AVStream *st)
static AVFrame *frame;
static AVPicture src_picture, dst_picture;
static int frame_count;
static uint8_t *video_outbuf;
static int frame_count, video_outbuf_size;
/* Add a video output stream. */
static AVStream *add_video_stream(AVFormatContext *oc, AVCodec **codec,
enum AVCodecID codec_id)
{
AVCodecContext *c;
AVStream *st;
/* find the video encoder */
*codec = avcodec_find_encoder(codec_id);
if (!(*codec)) {
fprintf(stderr, "codec not found\n");
exit(1);
}
st = avformat_new_stream(oc, *codec);
if (!st) {
fprintf(stderr, "Could not alloc stream\n");
exit(1);
}
c = st->codec;
avcodec_get_context_defaults3(c, *codec);
c->codec_id = codec_id;
/* Put sample parameters. */
c->bit_rate = 400000;
/* Resolution must be a multiple of two. */
c->width = 352;
c->height = 288;
/* timebase: This is the fundamental unit of time (in seconds) in terms
* of which frame timestamps are represented. For fixed-fps content,
* timebase should be 1/framerate and timestamp increments should be
* identical to 1. */
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) {
/* just for testing, we also add B frames */
c->max_b_frames = 2;
}
if (c->codec_id == AV_CODEC_ID_MPEG1VIDEO) {
/* Needed to avoid using macroblocks in which some coeffs overflow.
* This does not happen with normal video, it just happens here as
* the motion of the chroma plane does not match the luma plane. */
c->mb_decision = 2;
}
/* Some formats want stream headers to be separate. */
if (oc->oformat->flags & AVFMT_GLOBALHEADER)
c->flags |= CODEC_FLAG_GLOBAL_HEADER;
return st;
}
static void open_video(AVFormatContext *oc, AVCodec *codec, AVStream *st)
{
@@ -303,12 +243,23 @@ static void open_video(AVFormatContext *oc, AVCodec *codec, AVStream *st)
AVCodecContext *c = st->codec;
/* open the codec */
ret = avcodec_open2(c, codec, NULL);
if (ret < 0) {
fprintf(stderr, "Could not open video codec: %s\n", av_err2str(ret));
if (avcodec_open2(c, codec, NULL) < 0) {
fprintf(stderr, "Could not open codec\n");
exit(1);
}
video_outbuf = NULL;
if (!(oc->oformat->flags & AVFMT_RAWPICTURE)) {
/* Allocate output buffer. */
/* XXX: API change will be done. */
/* Buffers passed into lav* can be allocated any way you prefer,
* as long as they're aligned enough for the architecture, and
* they're freed appropriately (such as using av_free for buffers
* allocated with av_malloc). */
video_outbuf_size = 200000;
video_outbuf = av_malloc(video_outbuf_size);
}
/* allocate and init a re-usable frame */
frame = avcodec_alloc_frame();
if (!frame) {
@@ -319,18 +270,17 @@ static void open_video(AVFormatContext *oc, AVCodec *codec, AVStream *st)
/* 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));
fprintf(stderr, "Could not allocate picture\n");
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. */
if (c->pix_fmt != AV_PIX_FMT_YUV420P) {
ret = avpicture_alloc(&src_picture, AV_PIX_FMT_YUV420P, c->width, c->height);
if (c->pix_fmt != PIX_FMT_YUV420P) {
ret = avpicture_alloc(&src_picture, PIX_FMT_YUV420P, c->width, c->height);
if (ret < 0) {
fprintf(stderr, "Could not allocate temporary picture: %s\n",
av_err2str(ret));
fprintf(stderr, "Could not allocate temporary picture\n");
exit(1);
}
}
@@ -372,11 +322,11 @@ static void write_video_frame(AVFormatContext *oc, AVStream *st)
* 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) {
if (c->pix_fmt != PIX_FMT_YUV420P) {
/* as we only generate a YUV420P picture, we must convert it
* to the codec pixel format if needed */
if (!sws_ctx) {
sws_ctx = sws_getContext(c->width, c->height, AV_PIX_FMT_YUV420P,
sws_ctx = sws_getContext(c->width, c->height, PIX_FMT_YUV420P,
c->width, c->height, c->pix_fmt,
sws_flags, NULL, NULL, NULL);
if (!sws_ctx) {
@@ -395,7 +345,8 @@ static void write_video_frame(AVFormatContext *oc, AVStream *st)
}
if (oc->oformat->flags & AVFMT_RAWPICTURE) {
/* Raw video case - directly store the picture in the packet */
/* Raw video case - the API will change slightly in the near
* future for that. */
AVPacket pkt;
av_init_packet(&pkt);
@@ -406,19 +357,28 @@ static void write_video_frame(AVFormatContext *oc, AVStream *st)
ret = av_interleaved_write_frame(oc, &pkt);
} else {
AVPacket pkt = { 0 };
int got_packet;
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));
fprintf(stderr, "Error encoding video frame\n");
exit(1);
}
/* If size is zero, it means the image was buffered. */
if (!ret && got_packet && pkt.size) {
/* If size is zero, it means the image was buffered. */
if (got_output) {
if (c->coded_frame->pts != AV_NOPTS_VALUE)
pkt.pts = av_rescale_q(c->coded_frame->pts,
c->time_base, st->time_base);
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. */
@@ -428,7 +388,7 @@ static void write_video_frame(AVFormatContext *oc, AVStream *st)
}
}
if (ret != 0) {
fprintf(stderr, "Error while writing video frame: %s\n", av_err2str(ret));
fprintf(stderr, "Error while writing video frame\n");
exit(1);
}
frame_count++;
@@ -440,6 +400,7 @@ static void close_video(AVFormatContext *oc, AVStream *st)
av_free(src_picture.data[0]);
av_free(dst_picture.data[0]);
av_free(frame);
av_free(video_outbuf);
}
/**************************************************************/
@@ -452,8 +413,8 @@ int main(int argc, char **argv)
AVFormatContext *oc;
AVStream *audio_st, *video_st;
AVCodec *audio_codec, *video_codec;
double audio_time, video_time;
int ret;
double audio_pts, video_pts;
int i;
/* Initialize libavcodec, and register all codecs and formats. */
av_register_all();
@@ -461,10 +422,8 @@ int main(int argc, char **argv)
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"
"muxes them into a file named output_file.\n"
"The output format is automatically guessed according to the file extension.\n"
"Raw images can also be output by using '%%d' in the filename.\n"
"Raw images can also be output by using '%%d' in the filename\n"
"\n", argv[0]);
return 1;
}
@@ -486,12 +445,11 @@ int main(int argc, char **argv)
* and initialize the codecs. */
video_st = NULL;
audio_st = NULL;
if (fmt->video_codec != AV_CODEC_ID_NONE) {
video_st = add_stream(oc, &video_codec, fmt->video_codec);
video_st = add_video_stream(oc, &video_codec, fmt->video_codec);
}
if (fmt->audio_codec != AV_CODEC_ID_NONE) {
audio_st = add_stream(oc, &audio_codec, fmt->audio_codec);
audio_st = add_audio_stream(oc, &audio_codec, fmt->audio_codec);
}
/* Now that all the parameters are set, we can open the audio and
@@ -505,39 +463,42 @@ int main(int argc, char **argv)
/* open the output file, if needed */
if (!(fmt->flags & AVFMT_NOFILE)) {
ret = avio_open(&oc->pb, filename, AVIO_FLAG_WRITE);
if (ret < 0) {
fprintf(stderr, "Could not open '%s': %s\n", filename,
av_err2str(ret));
if (avio_open(&oc->pb, filename, AVIO_FLAG_WRITE) < 0) {
fprintf(stderr, "Could not open '%s'\n", filename);
return 1;
}
}
/* Write the stream header, if any. */
ret = avformat_write_header(oc, NULL);
if (ret < 0) {
fprintf(stderr, "Error occurred when opening output file: %s\n",
av_err2str(ret));
if (avformat_write_header(oc, NULL) < 0) {
fprintf(stderr, "Error occurred when opening output file\n");
return 1;
}
if (frame)
frame->pts = 0;
frame->pts = 0;
for (;;) {
/* Compute current audio and video time. */
audio_time = audio_st ? audio_st->pts.val * av_q2d(audio_st->time_base) : 0.0;
video_time = video_st ? video_st->pts.val * av_q2d(video_st->time_base) : 0.0;
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 ((!audio_st || audio_time >= STREAM_DURATION) &&
(!video_st || video_time >= STREAM_DURATION))
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_time < video_time)) {
if (!video_st || (video_st && audio_st && audio_pts < video_pts)) {
write_audio_frame(oc, audio_st);
} else {
write_video_frame(oc, video_st);
frame->pts += av_rescale_q(1, video_st->codec->time_base, video_st->time_base);
frame->pts++;
}
}
@@ -553,12 +514,18 @@ int main(int argc, char **argv)
if (audio_st)
close_audio(oc, audio_st);
/* Free the streams. */
for (i = 0; i < oc->nb_streams; i++) {
av_freep(&oc->streams[i]->codec);
av_freep(&oc->streams[i]);
}
if (!(fmt->flags & AVFMT_NOFILE))
/* Close the output file. */
avio_close(oc->pb);
/* free the stream */
avformat_free_context(oc);
av_free(oc);
return 0;
}

View File

@@ -1,211 +0,0 @@
/*
* Copyright (c) 2012 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.
*/
/**
* @example doc/examples/resampling_audio.c
* libswresample API use example.
*/
#include <libavutil/opt.h>
#include <libavutil/channel_layout.h>
#include <libavutil/samplefmt.h>
#include <libswresample/swresample.h>
static int get_format_from_sample_fmt(const char **fmt,
enum AVSampleFormat sample_fmt)
{
int i;
struct sample_fmt_entry {
enum AVSampleFormat sample_fmt; const char *fmt_be, *fmt_le;
} sample_fmt_entries[] = {
{ AV_SAMPLE_FMT_U8, "u8", "u8" },
{ AV_SAMPLE_FMT_S16, "s16be", "s16le" },
{ AV_SAMPLE_FMT_S32, "s32be", "s32le" },
{ AV_SAMPLE_FMT_FLT, "f32be", "f32le" },
{ AV_SAMPLE_FMT_DBL, "f64be", "f64le" },
};
*fmt = NULL;
for (i = 0; i < FF_ARRAY_ELEMS(sample_fmt_entries); i++) {
struct sample_fmt_entry *entry = &sample_fmt_entries[i];
if (sample_fmt == entry->sample_fmt) {
*fmt = AV_NE(entry->fmt_be, entry->fmt_le);
return 0;
}
}
fprintf(stderr,
"Sample format %s not supported as output format\n",
av_get_sample_fmt_name(sample_fmt));
return AVERROR(EINVAL);
}
/**
* Fill dst buffer with nb_samples, generated starting from 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;
const double c = 2 * M_PI * 440.0;
/* generate sin tone with 440Hz frequency and duplicated channels */
for (i = 0; i < nb_samples; i++) {
*dstp = sin(c * *t);
for (j = 1; j < nb_channels; j++)
dstp[j] = dstp[0];
dstp += nb_channels;
*t += tincr;
}
}
int main(int argc, char **argv)
{
int64_t src_ch_layout = AV_CH_LAYOUT_STEREO, dst_ch_layout = AV_CH_LAYOUT_SURROUND;
int src_rate = 48000, dst_rate = 44100;
uint8_t **src_data = NULL, **dst_data = NULL;
int src_nb_channels = 0, dst_nb_channels = 0;
int src_linesize, dst_linesize;
int src_nb_samples = 1024, dst_nb_samples, max_dst_nb_samples;
enum AVSampleFormat src_sample_fmt = AV_SAMPLE_FMT_DBL, dst_sample_fmt = AV_SAMPLE_FMT_S16;
const char *dst_filename = NULL;
FILE *dst_file;
int dst_bufsize;
const char *fmt;
struct SwrContext *swr_ctx;
double t;
int ret;
if (argc != 2) {
fprintf(stderr, "Usage: %s output_file\n"
"API example program to show how to resample an audio stream with libswresample.\n"
"This program generates a series of audio frames, resamples them to a specified "
"output format and rate and saves them to an output file named output_file.\n",
argv[0]);
exit(1);
}
dst_filename = argv[1];
dst_file = fopen(dst_filename, "wb");
if (!dst_file) {
fprintf(stderr, "Could not open destination file %s\n", dst_filename);
exit(1);
}
/* create resampler context */
swr_ctx = swr_alloc();
if (!swr_ctx) {
fprintf(stderr, "Could not allocate resampler context\n");
ret = AVERROR(ENOMEM);
goto end;
}
/* set options */
av_opt_set_int(swr_ctx, "in_channel_layout", src_ch_layout, 0);
av_opt_set_int(swr_ctx, "in_sample_rate", src_rate, 0);
av_opt_set_sample_fmt(swr_ctx, "in_sample_fmt", src_sample_fmt, 0);
av_opt_set_int(swr_ctx, "out_channel_layout", dst_ch_layout, 0);
av_opt_set_int(swr_ctx, "out_sample_rate", dst_rate, 0);
av_opt_set_sample_fmt(swr_ctx, "out_sample_fmt", dst_sample_fmt, 0);
/* initialize the resampling context */
if ((ret = swr_init(swr_ctx)) < 0) {
fprintf(stderr, "Failed to initialize the resampling context\n");
goto end;
}
/* 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,
src_nb_samples, src_sample_fmt, 0);
if (ret < 0) {
fprintf(stderr, "Could not allocate source samples\n");
goto end;
}
/* compute the number of converted samples: buffering is avoided
* ensuring that the output buffer will contain at least all the
* converted input samples */
max_dst_nb_samples = dst_nb_samples =
av_rescale_rnd(src_nb_samples, dst_rate, src_rate, AV_ROUND_UP);
/* 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,
dst_nb_samples, dst_sample_fmt, 0);
if (ret < 0) {
fprintf(stderr, "Could not allocate destination samples\n");
goto end;
}
t = 0;
do {
/* generate synthetic audio */
fill_samples((double *)src_data[0], src_nb_samples, src_nb_channels, src_rate, &t);
/* compute destination number of samples */
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_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)
break;
max_dst_nb_samples = dst_nb_samples;
}
/* convert to destination format */
ret = swr_convert(swr_ctx, dst_data, dst_nb_samples, (const uint8_t **)src_data, src_nb_samples);
if (ret < 0) {
fprintf(stderr, "Error while converting\n");
goto end;
}
dst_bufsize = av_samples_get_buffer_size(&dst_linesize, dst_nb_channels,
ret, dst_sample_fmt, 1);
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);
if ((ret = get_format_from_sample_fmt(&fmt, dst_sample_fmt)) < 0)
goto end;
fprintf(stderr, "Resampling succeeded. Play the output file with the command:\n"
"ffplay -f %s -channel_layout %"PRId64" -channels %d -ar %d %s\n",
fmt, dst_ch_layout, dst_nb_channels, dst_rate, dst_filename);
end:
if (dst_file)
fclose(dst_file);
if (src_data)
av_freep(&src_data[0]);
av_freep(&src_data);
if (dst_data)
av_freep(&dst_data[0]);
av_freep(&dst_data);
swr_free(&swr_ctx);
return ret < 0;
}

View File

@@ -23,7 +23,6 @@
/**
* @file
* libswscale API use example.
* @example doc/examples/scaling_video.c
*/
#include <libavutil/imgutils.h>
@@ -33,18 +32,20 @@
static void fill_yuv_image(uint8_t *data[4], int linesize[4],
int width, int height, int frame_index)
{
int x, y;
int x, y, i;
i = frame_index;
/* Y */
for (y = 0; y < height; y++)
for (x = 0; x < width; x++)
data[0][y * linesize[0] + x] = x + y + frame_index * 3;
data[0][y * linesize[0] + x] = x + y + i * 3;
/* Cb and Cr */
for (y = 0; y < height / 2; y++) {
for (x = 0; x < width / 2; x++) {
data[1][y * linesize[1] + x] = 128 + y + frame_index * 2;
data[2][y * linesize[2] + x] = 64 + x + frame_index * 5;
data[1][y * linesize[1] + x] = 128 + y + i * 2;
data[2][y * linesize[2] + x] = 64 + x + i * 5;
}
}
}
@@ -54,7 +55,7 @@ int main(int argc, char **argv)
uint8_t *src_data[4], *dst_data[4];
int src_linesize[4], dst_linesize[4];
int src_w = 320, src_h = 240, dst_w, dst_h;
enum AVPixelFormat src_pix_fmt = AV_PIX_FMT_YUV420P, dst_pix_fmt = AV_PIX_FMT_RGB24;
enum PixelFormat src_pix_fmt = PIX_FMT_YUV420P, dst_pix_fmt = PIX_FMT_RGB24;
const char *dst_size = NULL;
const char *dst_filename = NULL;
FILE *dst_file;
@@ -107,7 +108,7 @@ int main(int argc, char **argv)
goto end;
}
/* buffer is going to be written to rawvideo file, no alignment */
/* buffer is going to be written to rawvideo file, no alignmnet */
if ((ret = av_image_alloc(dst_data, dst_linesize,
dst_w, dst_h, dst_pix_fmt, 1)) < 0) {
fprintf(stderr, "Could not allocate destination image\n");

View File

@@ -79,17 +79,6 @@ not a bug they should fix:
Then again, some of them do not know the difference between an undecidable
problem and an NP-hard problem...
@section I have installed this library with my distro's package manager. Why does @command{configure} not see it?
Distributions usually split libraries in several packages. The main package
contains the files necessary to run programs using the library. The
development package contains the files necessary to build programs using the
library. Sometimes, docs and/or data are in a separate package too.
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.
@chapter Usage
@section ffmpeg does not work; what is wrong?
@@ -105,21 +94,12 @@ For example, img1.jpg, img2.jpg, img3.jpg,...
Then you may run:
@example
ffmpeg -f image2 -i img%d.jpg /tmp/a.mpg
ffmpeg -f image2 -i img%d.jpg /tmp/a.mpg
@end example
Notice that @samp{%d} is replaced by the image number.
@file{img%03d.jpg} means the sequence @file{img001.jpg}, @file{img002.jpg}, etc.
Use the @option{-start_number} option to declare a starting number for
the sequence. This is useful if your sequence does not start with
@file{img001.jpg} but is still in a numerical order. The following
example will start with @file{img100.jpg}:
@example
ffmpeg -f image2 -start_number 100 -i img%d.jpg /tmp/a.mpg
@end example
@file{img%03d.jpg} means the sequence @file{img001.jpg}, @file{img002.jpg}, etc...
If you have large number of pictures to rename, you can use the
following command to ease the burden. The command, using the bourne
@@ -128,7 +108,7 @@ that match @code{*jpg} to the @file{/tmp} directory in the sequence of
@file{img001.jpg}, @file{img002.jpg} and so on.
@example
x=1; for i in *jpg; do counter=$(printf %03d $x); ln -s "$i" /tmp/img"$counter".jpg; x=$(($x+1)); done
x=1; for i in *jpg; do counter=$(printf %03d $x); ln -s "$i" /tmp/img"$counter".jpg; x=$(($x+1)); done
@end example
If you want to sequence them by oldest modified first, substitute
@@ -137,23 +117,17 @@ If you want to sequence them by oldest modified first, substitute
Then run:
@example
ffmpeg -f image2 -i /tmp/img%03d.jpg /tmp/a.mpg
ffmpeg -f image2 -i /tmp/img%03d.jpg /tmp/a.mpg
@end example
The same logic is used for any image format that ffmpeg reads.
You can also use @command{cat} to pipe images to ffmpeg:
@example
cat *.jpg | ffmpeg -f image2pipe -c:v mjpeg -i - output.mpg
@end example
@section How do I encode movie to single pictures?
Use:
@example
ffmpeg -i movie.mpg movie%d.jpg
ffmpeg -i movie.mpg movie%d.jpg
@end example
The @file{movie.mpg} used as input will be converted to
@@ -169,7 +143,7 @@ to force the encoding.
Applying that to the previous example:
@example
ffmpeg -i movie.mpg -f image2 -c:v mjpeg menu%d.jpg
ffmpeg -i movie.mpg -f image2 -c:v mjpeg menu%d.jpg
@end example
Beware that there is no "jpeg" codec. Use "mjpeg" instead.
@@ -227,15 +201,15 @@ then you may use any file that DirectShow can read as input.
Just create an "input.avs" text file with this single line ...
@example
DirectShowSource("C:\path to your file\yourfile.asf")
DirectShowSource("C:\path to your file\yourfile.asf")
@end example
... and then feed that text file to ffmpeg:
@example
ffmpeg -i input.avs
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?
@@ -260,18 +234,18 @@ invoking ffmpeg with several @option{-i} options.
For audio, to put all channels together in a single stream (example: two
mono streams into one stereo stream): this is sometimes called to
@emph{merge} them, and can be done using the
@url{http://ffmpeg.org/ffmpeg-filters.html#amerge, @code{amerge}} filter.
@url{http://ffmpeg.org/ffmpeg.html#amerge, @code{amerge}} filter.
@item
For audio, to play one on top of the other: this is called to @emph{mix}
them, and can be done by first merging them into a single stream and then
using the @url{http://ffmpeg.org/ffmpeg-filters.html#pan, @code{pan}} filter to mix
using the @url{http://ffmpeg.org/ffmpeg.html#pan, @code{pan}} filter to mix
the channels at will.
@item
For video, to display both together, side by side or one on top of a part of
the other; it can be done using the
@url{http://ffmpeg.org/ffmpeg-filters.html#overlay, @code{overlay}} video filter.
@url{http://ffmpeg.org/ffmpeg.html#overlay, @code{overlay}} video filter.
@end itemize
@@ -280,26 +254,15 @@ the other; it can be done using the
There are several solutions, depending on the exact circumstances.
@subsection Concatenating using the concat @emph{filter}
@subsection Concatenating using filters
FFmpeg has a @url{http://ffmpeg.org/ffmpeg-filters.html#concat,
@code{concat}} filter designed specifically for that, with examples in the
documentation. This operation is recommended if you need to re-encode.
FFmpeg has a @url{http://ffmpeg.org/ffmpeg.html#concat-1, @code{concat}}
filter designed specifically for that, with examples in the documentation.
@subsection Concatenating using the concat @emph{demuxer}
FFmpeg has a @url{http://www.ffmpeg.org/ffmpeg-formats.html#concat,
@code{concat}} demuxer which you can use when you want to avoid a re-encode and
your format doesn't support file level concatenation.
@subsection Concatenating using the concat @emph{protocol} (file level)
FFmpeg has a @url{http://ffmpeg.org/ffmpeg-protocols.html#concat,
@code{concat}} protocol designed specifically for that, with examples in the
documentation.
@subsection Concatenating at the file level
A few multimedia containers (MPEG-1, MPEG-2 PS, DV) allow to concatenate
video by merely concatenating the files containing them.
video by merely concatenating the files them.
Hence you may concatenate your multimedia files by first transcoding them to
these privileged formats, then using the humble @code{cat} command (or the
@@ -334,7 +297,7 @@ mkfifo intermediate2.mpg
ffmpeg -i input1.avi -qscale:v 1 -y intermediate1.mpg < /dev/null &
ffmpeg -i input2.avi -qscale:v 1 -y intermediate2.mpg < /dev/null &
cat intermediate1.mpg intermediate2.mpg |\
ffmpeg -f mpeg -i - -c:v mpeg4 -acodec libmp3lame output.avi
ffmpeg -f mpeg -i - -qscale:v 2 -c:v mpeg4 -acodec libmp3lame -q:a 4 output.avi
@end example
@subsection Concatenating using raw audio and video
@@ -364,7 +327,7 @@ cat temp1.a temp2.a > all.a &
cat temp1.v temp2.v > all.v &
ffmpeg -f u16le -acodec pcm_s16le -ac 2 -ar 44100 -i all.a \
-f yuv4mpegpipe -i all.v \
-y output.flv
-qscale:v 2 -y output.flv
rm temp[12].[av] all.[av]
@end example
@@ -393,17 +356,17 @@ Appending @code{:v} to it will do exactly that.
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?
@@ -422,20 +385,6 @@ The size of the initial scan is controlled by two options: @code{probesize}
(default ~5 Mo) and @code{analyzeduration} (default 5,000,000 µs = 5 s). For
the subtitle stream to be detected, both values must be large enough.
@section Why was the @command{ffmpeg} @option{-sameq} option removed? What to use instead?
The @option{-sameq} option meant "same quantizer", and made sense only in a
very limited set of cases. Unfortunately, a lot of people mistook it for
"same quality" and used it in places where it did not make sense: it had
roughly the expected visible effect, but achieved it in a very inefficient
way.
Each encoder has its own set of options to set the quality-vs-size balance,
use the options for the encoder you are using to set the quality level to a
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.
@chapter Development
@section Are there examples illustrating how to use the FFmpeg libraries, particularly libavcodec and libavformat?
@@ -459,8 +408,31 @@ with @code{#ifdef}s related to the compiler.
@section Is Microsoft Visual C++ supported?
Yes. Please see the @uref{platform.html, Microsoft Visual C++}
section in the FFmpeg documentation.
No. Microsoft Visual C++ is not compliant to the C99 standard and does
not - among other things - support the inline assembly used in FFmpeg.
If you wish to use MSVC++ for your
project then you can link the MSVC++ code with libav* as long as
you compile the latter with a working C compiler. For more information, see
the @emph{Microsoft Visual C++ compatibility} section in the FFmpeg
documentation.
There have been efforts to make FFmpeg compatible with MSVC++ in the
past. However, they have all been rejected as too intrusive, especially
since MinGW does the job adequately. None of the core developers
work with MSVC++ and thus this item is low priority. Should you find
the silver bullet that solves this problem, feel free to shoot it at us.
We strongly recommend you to move over from MSVC++ to MinGW tools.
@section Can I use FFmpeg or libavcodec under Windows?
Yes, but the Cygwin or MinGW tools @emph{must} be used to compile FFmpeg.
Read the @emph{Windows} section in the FFmpeg documentation to find more
information.
To get help and instructions for building FFmpeg under Windows, check out
the FFmpeg Windows Help Forum at
@url{http://ffmpeg.arrozcru.org/}.
@section Can you add automake, libtool or autoconf support?
@@ -475,10 +447,9 @@ 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?
@@ -498,7 +469,7 @@ An easy way to get the full list of required libraries in dependency order
is to use @code{pkg-config}.
@example
c99 -o program program.c $(pkg-config --cflags --libs libavformat libavcodec)
c99 -o program program.c $(pkg-config --cflags --libs libavformat libavcodec)
@end example
See @file{doc/example/Makefile} and @file{doc/example/pc-uninstalled} for
@@ -519,8 +490,12 @@ to use them you have to append -D__STDC_CONSTANT_MACROS to your CXXFLAGS
@section I have a file in memory / a API different from *open/*read/ libc how do I use it with libavformat?
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.
You have to implement a URLProtocol, see @file{libavformat/file.c} in
FFmpeg and @file{libmpdemux/demux_lavf.c} in MPlayer 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?
@@ -534,12 +509,11 @@ 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?

View File

@@ -27,7 +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
@@ -93,11 +93,11 @@ tests/fate.sh /path/to/fate_config
@end example
A configuration file template with comments describing the individual
configuration variables can be found at @file{doc/fate_config.sh.template}.
configuration variables can be found at @file{tests/fate_config.sh.template}.
@ifhtml
The mentioned configuration template is also available here:
@verbatiminclude fate_config.sh.template
@verbatiminclude ../tests/fate_config.sh.template
@end ifhtml
Create a configuration that suits your needs, based on the configuration
@@ -131,12 +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 @option
@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
@@ -153,20 +148,20 @@ the synchronisation of the samples directory.
@table @option
@item fate-rsync
Download/synchronize sample files to the configured samples directory.
Download/synchronize sample files to the configured samples directory.
@item fate-list
Will list all fate/regression test targets.
Will list all fate/regression test targets.
@item fate
Run the FATE test suite (requires the fate-suite dataset).
Run the FATE test suite (requires the fate-suite dataset).
@end table
@section Makefile variables
@table @option
@item V
Verbosity level, can be set to 0, 1 or 2.
Verbosity level, can be set to 0, 1 or 2.
@itemize
@item 0: show just the test arguments
@item 1: show just the command used in the test
@@ -174,28 +169,22 @@ Verbosity level, can be set to 0, 1 or 2.
@end itemize
@item SAMPLES
Specify or override the path to the FATE samples at make time, it has a
meaning only while running the regression tests.
Specify or override the path to the FATE samples at make time, it has a
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.
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 @var{slice} or @var{frame},
by default @var{slice+frame}
Specify which threading strategy test, either @var{slice} or @var{frame},
by default @var{slice+frame}
@item CPUFLAGS
Specify CPU flags.
Specify CPU flags.
@item TARGET_EXEC
Specify or override the wrapper used to run the tests.
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 @var{1} to generate the missing or mismatched references.
Specify or override the wrapper used to run the tests.
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}.
@end table
@section Examples

View File

@@ -1,45 +0,0 @@
\input texinfo @c -*- texinfo -*-
@settitle FFmpeg Bitstream Filters Documentation
@titlepage
@center @titlefont{FFmpeg Bitstream Filters Documentation}
@end titlepage
@top
@contents
@chapter Description
@c man begin DESCRIPTION
This document describes the bitstream filters provided by the
libavcodec library.
A bitstream filter operates on the encoded stream data, and performs
bitstream level modifications without performing decoding.
@c man end DESCRIPTION
@include bitstream_filters.texi
@chapter See Also
@ifhtml
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
@url{libavcodec.html,libavcodec}
@end ifhtml
@ifnothtml
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libavcodec(3)
@end ifnothtml
@include authors.texi
@ignore
@setfilename ffmpeg-bitstream-filters
@settitle FFmpeg bitstream filters
@end ignore
@bye

View File

@@ -1,42 +0,0 @@
\input texinfo @c -*- texinfo -*-
@settitle FFmpeg Codecs Documentation
@titlepage
@center @titlefont{FFmpeg Codecs Documentation}
@end titlepage
@top
@contents
@chapter Description
@c man begin DESCRIPTION
This document describes the codecs (decoders and encoders) provided by
the libavcodec library.
@c man end DESCRIPTION
@include codecs.texi
@chapter See Also
@ifhtml
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
@url{libavcodec.html,libavcodec}
@end ifhtml
@ifnothtml
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libavcodec(3)
@end ifnothtml
@include authors.texi
@ignore
@setfilename ffmpeg-codecs
@settitle FFmpeg codecs
@end ignore
@bye

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@@ -1,42 +0,0 @@
\input texinfo @c -*- texinfo -*-
@settitle FFmpeg Devices Documentation
@titlepage
@center @titlefont{FFmpeg Devices Documentation}
@end titlepage
@top
@contents
@chapter Description
@c man begin DESCRIPTION
This document describes the input and output devices provided by the
libavdevice library.
@c man end DESCRIPTION
@include devices.texi
@chapter See Also
@ifhtml
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
@url{libavdevice.html,libavdevice}
@end ifhtml
@ifnothtml
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libavdevice(3)
@end ifnothtml
@include authors.texi
@ignore
@setfilename ffmpeg-devices
@settitle FFmpeg devices
@end ignore
@bye

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@@ -1,42 +0,0 @@
\input texinfo @c -*- texinfo -*-
@settitle FFmpeg Filters Documentation
@titlepage
@center @titlefont{FFmpeg Filters Documentation}
@end titlepage
@top
@contents
@chapter Description
@c man begin DESCRIPTION
This document describes filters, sources, and sinks provided by the
libavfilter library.
@c man end DESCRIPTION
@include filters.texi
@chapter See Also
@ifhtml
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
@url{libavfilter.html,libavfilter}
@end ifhtml
@ifnothtml
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libavfilter(3)
@end ifnothtml
@include authors.texi
@ignore
@setfilename ffmpeg-filters
@settitle FFmpeg filters
@end ignore
@bye

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@@ -1,42 +0,0 @@
\input texinfo @c -*- texinfo -*-
@settitle FFmpeg Formats Documentation
@titlepage
@center @titlefont{FFmpeg Formats Documentation}
@end titlepage
@top
@contents
@chapter Description
@c man begin DESCRIPTION
This document describes the supported formats (muxers and demuxers)
provided by the libavformat library.
@c man end DESCRIPTION
@include formats.texi
@chapter See Also
@ifhtml
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
@url{libavformat.html,libavformat}
@end ifhtml
@ifnothtml
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libavformat(3)
@end ifnothtml
@include authors.texi
@ignore
@setfilename ffmpeg-formats
@settitle FFmpeg formats
@end ignore
@bye

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@@ -1,42 +0,0 @@
\input texinfo @c -*- texinfo -*-
@settitle FFmpeg Protocols Documentation
@titlepage
@center @titlefont{FFmpeg Protocols Documentation}
@end titlepage
@top
@contents
@chapter Description
@c man begin DESCRIPTION
This document describes the input and output protocols provided by the
libavformat library.
@c man end DESCRIPTION
@include protocols.texi
@chapter See Also
@ifhtml
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
@url{libavformat.html,libavformat}
@end ifhtml
@ifnothtml
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libavformat(3)
@end ifnothtml
@include authors.texi
@ignore
@setfilename ffmpeg-protocols
@settitle FFmpeg protocols
@end ignore
@bye

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@@ -1,44 +0,0 @@
\input texinfo @c -*- texinfo -*-
@settitle FFmpeg Resampler Documentation
@titlepage
@center @titlefont{FFmpeg Resampler Documentation}
@end titlepage
@top
@contents
@chapter Description
@c man begin DESCRIPTION
The FFmpeg resampler provides a high-level interface to the
libswresample library audio resampling utilities. In particular it
allows to perform audio resampling, audio channel layout rematrixing,
and convert audio format and packing layout.
@c man end DESCRIPTION
@include resampler.texi
@chapter See Also
@ifhtml
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
@url{libswresample.html,libswresample}
@end ifhtml
@ifnothtml
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libswresample(3)
@end ifnothtml
@include authors.texi
@ignore
@setfilename ffmpeg-resampler
@settitle FFmpeg Resampler
@end ignore
@bye

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@@ -1,43 +0,0 @@
\input texinfo @c -*- texinfo -*-
@settitle FFmpeg Scaler Documentation
@titlepage
@center @titlefont{FFmpeg Scaler Documentation}
@end titlepage
@top
@contents
@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 to perform
image rescaling and pixel format conversion.
@c man end DESCRIPTION
@include scaler.texi
@chapter See Also
@ifhtml
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
@url{libswscale.html,libswscale}
@end ifhtml
@ifnothtml
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libswscale(3)
@end ifnothtml
@include authors.texi
@ignore
@setfilename ffmpeg-scaler
@settitle FFmpeg video scaling and pixel format converter
@end ignore
@bye

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@@ -1,42 +0,0 @@
\input texinfo @c -*- texinfo -*-
@settitle FFmpeg Utilities Documentation
@titlepage
@center @titlefont{FFmpeg Utilities Documentation}
@end titlepage
@top
@contents
@chapter Description
@c man begin DESCRIPTION
This document describes some generic features and utilities provided
by the libavutil library.
@c man end DESCRIPTION
@include utils.texi
@chapter See Also
@ifhtml
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
@url{libavutil.html,libavutil}
@end ifhtml
@ifnothtml
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1), libavutil(3)
@end ifnothtml
@include authors.texi
@ignore
@setfilename ffmpeg-utils
@settitle FFmpeg utilities
@end ignore
@bye

View File

@@ -11,31 +11,37 @@
@chapter Synopsis
ffmpeg [@var{global_options}] @{[@var{input_file_options}] -i @file{input_file}@} ... @{[@var{output_file_options}] @file{output_file}@} ...
The generic syntax is:
@example
@c man begin SYNOPSIS
ffmpeg [global options] [[infile options][@option{-i} @var{infile}]]... @{[outfile options] @var{outfile}@}...
@c man end
@end example
@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
@@ -50,9 +56,9 @@ options apply ONLY to the next input or output file and are reset between files.
@itemize
@item
To set the video bitrate of the output file to 64 kbit/s:
To set the video bitrate of the output file to 64kbit/s:
@example
ffmpeg -i input.avi -b:v 64k -bufsize 64k output.avi
ffmpeg -i input.avi -b:v 64k output.avi
@end example
@item
@@ -96,14 +102,14 @@ 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
@@ -139,7 +145,7 @@ 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:
@@ -164,11 +170,9 @@ input. They can be represented with the following diagram:
@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.
@@ -178,7 +182,7 @@ 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:
@example
_______ ______________ ________
@@ -190,7 +194,7 @@ diagram above will, in this case, simplify to this:
@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
@@ -198,14 +202,14 @@ 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.
@@ -214,7 +218,7 @@ described.
@chapter Options
@c man begin OPTIONS
@include fftools-common-opts.texi
@include avtools-common-opts.texi
@section Main options
@@ -222,7 +226,7 @@ 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})
@@ -232,8 +236,7 @@ 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})
@@ -259,28 +262,14 @@ libx264, and the 138th audio, which will be encoded with libvorbis.
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} 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 -fs @var{limit_size} (@emph{output})
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 the 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.
When used as an output option (before an output filename), decodes but discards
input until the timestamps reach @var{position}.
@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.
@var{position} may be either in seconds or in @code{hh:mm:ss[.xxx]} form.
@@ -351,32 +340,18 @@ Stop writing to the stream after @var{framecount} frames.
Use fixed quality scale (VBR). The meaning of @var{q} is
codec-dependent.
@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
filter the stream.
@var{filtergraph} is a description of the filtergraph to apply to
the stream, and must have a single input and a single output of the
same type of the stream. In the filtergraph, 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.
See the @ref{filter_complex_option,,-filter_complex option} if you
want to create filtergraphs 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 -filter[:@var{stream_specifier}] @var{filter_graph} (@emph{output,per-stream})
@var{filter_graph} is a description of the filter graph to apply to
the stream. Use @code{-filters} to show all the available filters
(including also sources and sinks).
See also the @option{-filter_complex} option if you want to create filter graphs
with multiple inputs and/or outputs.
@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}.
@@ -426,11 +401,11 @@ will be used.
E.g. to extract the first attachment to a file named 'out.ttf':
@example
ffmpeg -dump_attachment:t:0 out.ttf -i INPUT
ffmpeg -dump_attachment:t:0 out.ttf INPUT
@end example
To extract all attachments to files determined by the @code{filename} tag:
@example
ffmpeg -dump_attachment:t "" -i INPUT
ffmpeg -dump_attachment:t "" INPUT
@end example
Technical note -- attachments are implemented as codec extradata, so this
@@ -451,7 +426,8 @@ As an input option, ignore any timestamps stored in the file and instead
generate timestamps assuming constant frame rate @var{fps}.
As an output option, duplicate or drop input frames to achieve constant output
frame rate @var{fps}.
frame rate @var{fps} (note that this actually causes the @code{fps} filter to be
inserted to the end of the corresponding filtergraph).
@item -s[:@var{stream_specifier}] @var{size} (@emph{input/output,per-stream})
Set frame size.
@@ -474,15 +450,31 @@ 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 -croptop @var{size}
@item -cropbottom @var{size}
@item -cropleft @var{size}
@item -cropright @var{size}
All the crop options have been removed. Use -vf
crop=width:height:x:y instead.
@item -padtop @var{size}
@item -padbottom @var{size}
@item -padleft @var{size}
@item -padright @var{size}
@item -padcolor @var{hex_color}
All the pad options have been removed. Use -vf
pad=width:height:x:y:color instead.
@item -vn (@emph{output})
Disable video recording.
@item -vcodec @var{codec} (@emph{output})
Set the video codec. This is an alias for @code{-codec:v}.
@item -same_quant
Use same quantizer as source (implies VBR).
Note that this is NOT SAME QUALITY. Do not use this option unless you know you
need it.
@item -pass[:@var{stream_specifier}] @var{n} (@emph{output,per-stream})
Select the pass number (1 or 2). It is used to do two-pass
@@ -506,11 +498,12 @@ stream
@item -vlang @var{code}
Set the ISO 639 language code (3 letters) of the current video stream.
@item -vf @var{filtergraph} (@emph{output})
Create the filtergraph specified by @var{filtergraph} and use it to
filter the stream.
@item -vf @var{filter_graph} (@emph{output})
@var{filter_graph} is a description of the filter graph to apply to
the input video.
Use the option "-filters" to show all the available filters (including
also sources and sinks). This is an alias for @code{-filter:v}.
This is an alias for @code{-filter:v}, see the @ref{filter_option,,-filter option}.
@end table
@section Advanced Video Options
@@ -523,7 +516,7 @@ If the selected pixel format can not be selected, ffmpeg will print a
warning and select the best pixel format supported by the encoder.
If @var{pix_fmt} is prefixed by a @code{+}, ffmpeg will exit with an error
if the requested pixel format can not be selected, and automatic conversions
inside filtergraphs are disabled.
inside filter graphs are disabled.
If @var{pix_fmt} is a single @code{+}, ffmpeg selects the same pixel format
as the input (or graph output) and automatic conversions are disabled.
@@ -538,6 +531,10 @@ 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
@@ -560,58 +557,12 @@ Force video tag/fourcc. This is an alias for @code{-tag:v}.
Show QP histogram
@item -vbsf @var{bitstream_filter}
Deprecated see -bsf
@item -force_key_frames[:@var{stream_specifier}] @var{time}[,@var{time}...] (@emph{output,per-stream})
@item -force_key_frames[:@var{stream_specifier}] expr:@var{expr} (@emph{output,per-stream})
Force key frames at the specified timestamps, more precisely at the first
frames after each specified time.
If the argument is prefixed with @code{expr:}, the string @var{expr}
is interpreted like an expression and is evaluated for each frame. A
key frame is forced in case the evaluation is non-zero.
If one of the times is "@code{chapters}[@var{delta}]", it is expanded into
the time of the beginning of all chapters in the file, shifted by
@var{delta}, expressed as a time in seconds.
This option can be useful to ensure that a seek point is present at a
chapter mark or any other designated place in the output file.
For example, to insert a key frame at 5 minutes, plus key frames 0.1 second
before the beginning of every chapter:
@example
-force_key_frames 0:05:00,chapters-0.1
@end example
The expression in @var{expr} can contain the following constants:
@table @option
@item n
the number of current processed frame, starting from 0
@item n_forced
the number of forced frames
@item prev_forced_n
the number of the previous forced frame, it is @code{NAN} when no
keyframe was forced yet
@item prev_forced_t
the time of the previous forced frame, it is @code{NAN} when no
keyframe was forced yet
@item t
the time of the current processed frame
@end table
For example to force a key frame every 5 seconds, you can specify:
@example
-force_key_frames expr:gte(t,n_forced*5)
@end example
To force a key frame 5 seconds after the time of the last forced one,
starting from second 13:
@example
-force_key_frames expr:if(isnan(prev_forced_t),gte(t,13),gte(t,prev_forced_t+5))
@end example
Note that forcing too many keyframes is very harmful for the lookahead
algorithms of certain encoders: using fixed-GOP options or similar
would be more efficient.
The timestamps must be specified in ascending order.
@item -copyinkf[:@var{stream_specifier}] (@emph{output,per-stream})
When doing stream copy, copy also non-key frames found at the
@@ -642,12 +593,11 @@ Set the audio codec. This is an alias for @code{-codec:a}.
@item -sample_fmt[:@var{stream_specifier}] @var{sample_fmt} (@emph{output,per-stream})
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
filter the stream.
This is an alias for @code{-filter:a}, see the @ref{filter_option,,-filter option}.
@item -af @var{filter_graph} (@emph{output})
@var{filter_graph} is a description of the filter graph to apply to
the input audio.
Use the option "-filters" to show all the available filters (including
also sources and sinks). This is an alias for @code{-filter:a}.
@end table
@section Advanced Audio options:
@@ -657,12 +607,6 @@ This is an alias for @code{-filter:a}, see the @ref{filter_option,,-filter optio
Force audio tag/fourcc. This is an alias for @code{-tag:a}.
@item -absf @var{bitstream_filter}
Deprecated, see -bsf
@item -guess_layout_max @var{channels} (@emph{input,per-stream})
If some input channel layout is not known, try to guess only if it
corresponds to at most the specified number of channels. For example, 2
tells to @command{ffmpeg} to recognize 1 channel as mono and 2 channels as
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:
@@ -695,9 +639,6 @@ 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
@@ -860,7 +801,39 @@ Copy chapters from input file with index @var{input_file_index} to the next
output file. If no chapter mapping is specified, then chapters are copied from
the first input file with at least one chapter. Use a negative file index to
disable any chapter copying.
@item -debug @var{category}
Print specific debug info.
@var{category} is a number or a string containing one of the following values:
@table @samp
@item bitstream
@item buffers
picture buffer allocations
@item bugs
@item dct_coeff
@item er
error recognition
@item mb_type
macroblock (MB) type
@item mmco
memory management control operations (H.264)
@item mv
motion vector
@item pict
picture info
@item pts
@item qp
per-block quantization parameter (QP)
@item rc
rate control
@item skip
@item startcode
@item thread_ops
threading operations
@item vis_mb_type
visualize block types
@item vis_qp
visualize quantization parameter (QP), lower QP are tinted greener
@end table
@item -benchmark (@emph{global})
Show benchmarking information at the end of an encode.
Shows CPU time used and maximum memory consumption.
@@ -877,12 +850,13 @@ 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.
@@ -901,7 +875,7 @@ Newly added values will have to be specified as strings always.
Each frame is passed with its timestamp from the demuxer to the muxer.
@item 1, cfr
Frames will be duplicated and dropped to achieve exactly the requested
constant frame rate.
constant framerate.
@item 2, vfr
Frames are passed through with their timestamp or dropped so as to
prevent 2 frames from having the same timestamp.
@@ -913,10 +887,6 @@ 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.
@@ -926,23 +896,9 @@ 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.
This option has been deprecated. Use the @code{asyncts} audio filter instead.
@item -copyts
Do not process input timestamps, but keep their values without trying
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
timestamps even when this option is selected.
Copy timestamps from input to output.
@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:
@@ -988,7 +944,7 @@ ffmpeg -i infile -streamid 0:33 -streamid 1:36 out.ts
@end example
@item -bsf[:@var{stream_specifier}] @var{bitstream_filters} (@emph{output,per-stream})
Set bitstream filters for matching streams. @var{bitstream_filters} is
Set bitstream filters for matching streams. @var{bistream_filters} is
a comma-separated list of bitstream filters. Use the @code{-bsfs} option
to get the list of bitstream filters.
@example
@@ -1008,13 +964,11 @@ Specify Timecode for writing. @var{SEP} is ':' for non drop timecode and ';'
ffmpeg -i input.mpg -timecode 01:02:03.04 -r 30000/1001 -s ntsc output.mpg
@end example
@anchor{filter_complex_option}
@item -filter_complex @var{filtergraph} (@emph{global})
Define a complex filtergraph, i.e. one with arbitrary number of inputs and/or
Define a complex filter graph, i.e. one with arbitrary number of inputs and/or
outputs. For simple graphs -- those with one input and one output of the same
type -- see the @option{-filter} options. @var{filtergraph} is a description of
the filtergraph, as described in the ``Filtergraph syntax'' section of the
ffmpeg-filters manual.
the filter graph, as described in @ref{Filtergraph syntax}.
Input link labels must refer to input streams using the
@code{[file_index:stream_specifier]} syntax (i.e. the same as @option{-map}
@@ -1053,32 +1007,8 @@ ffmpeg -i video.mkv -i image.png -filter_complex 'overlay' out.mkv
To generate 5 seconds of pure red video using lavfi @code{color} source:
@example
ffmpeg -filter_complex 'color=c=red' -t 5 out.mkv
ffmpeg -filter_complex 'color=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 -override_ffserver (@emph{global})
Overrides the input specifications from ffserver. Using this option you can
map any input stream to ffserver and control many aspects of the encoding from
ffmpeg. Without this option ffmpeg will transmit to ffserver what is requested by
ffserver.
The option is intended for cases where features are needed that cannot be
specified to ffserver but can be to ffmpeg.
@end table
As a special exception, you can use a bitmap subtitle stream as input: it
@@ -1136,7 +1066,7 @@ then it will search for the file @file{libvpx-1080p.ffpreset}.
@itemize
@item
For streaming at very low bitrates, use a low frame rate
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:
@@ -1215,14 +1145,14 @@ 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
@@ -1359,7 +1289,7 @@ ffmpeg -f image2 -pattern_type glob -i 'foo-*.jpeg' -r 12 -s WxH foo.avi
You can put many streams of the same type in the output:
@example
ffmpeg -i test1.avi -i test2.avi -map 0:3 -map 0:2 -map 0:1 -map 0:0 -c copy 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.avi} will contain first four streams from
@@ -1381,74 +1311,32 @@ 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 syntax.texi
@include eval.texi
@include decoders.texi
@include encoders.texi
@include demuxers.texi
@include muxers.texi
@include indevs.texi
@include outdevs.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 bitstream_filters.texi
@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},
@url{ffmpeg-resampler.html,ffmpeg-resampler},
@url{ffmpeg-codecs.html,ffmpeg-codecs},
@url{ffmpeg-bitstream-filters.html,ffmpeg-bitstream-filters},
@url{ffmpeg-formats.html,ffmpeg-formats},
@url{ffmpeg-devices.html,ffmpeg-devices},
@url{ffmpeg-protocols.html,ffmpeg-protocols},
@url{ffmpeg-filters.html,ffmpeg-filters}
@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),
ffmpeg-devices(1), ffmpeg-protocols(1), ffmpeg-filters(1)
@end ifnothtml
@include authors.texi
@include metadata.texi
@ignore
@setfilename ffmpeg
@settitle ffmpeg video converter
@c man begin SEEALSO
ffplay(1), ffprobe(1), ffserver(1) and the FFmpeg HTML documentation
@c man end
@c man begin AUTHORS
See git history
@c man end
@end ignore
@bye

View File

@@ -11,7 +11,11 @@
@chapter Synopsis
ffplay [@var{options}] [@file{input_file}]
@example
@c man begin SYNOPSIS
ffplay [options] [@file{input_file}]
@c man end
@end example
@chapter Description
@c man begin DESCRIPTION
@@ -24,7 +28,7 @@ various FFmpeg APIs.
@chapter Options
@c man begin OPTIONS
@include fftools-common-opts.texi
@include avtools-common-opts.texi
@section Main options
@@ -73,22 +77,11 @@ 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
filter the video stream.
@var{filtergraph} is a description of the filtergraph to apply to
the stream, and must have a single video input and a single video
output. In the filtergraph, 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.
@item -af @var{filtergraph}
@var{filtergraph} is a description of the filtergraph to apply to
the input audio.
@item -vf @var{filter_graph}
@var{filter_graph} is a description of the filter graph to apply to
the input video.
Use the option "-filters" to show all the available filters (including
sources and sinks).
also sources and sinks).
@item -i @var{input_file}
Read @var{input_file}.
@@ -99,13 +92,9 @@ 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
@@ -145,20 +134,8 @@ Exit when video is done playing.
Exit if any key is pressed.
@item -exitonmousedown
Exit if any mouse button is pressed.
@item -codec:@var{media_specifier} @var{codec_name}
Force a specific decoder implementation for the stream identified by
@var{media_specifier}, which can assume the values @code{a} (audio),
@code{v} (video), and @code{s} subtitle.
@item -acodec @var{codec_name}
Force a specific audio decoder.
@item -vcodec @var{codec_name}
Force a specific video decoder.
@item -scodec @var{codec_name}
Force a specific subtitle decoder.
@item -codec:@var{stream_type}
Force a specific decoder implementation
@end table
@section While playing
@@ -174,16 +151,13 @@ Toggle full screen.
Pause.
@item a
Cycle audio channel in the curret 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
Show audio waves.
@@ -204,74 +178,29 @@ Seek to percentage in file corresponding to fraction of width.
@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 syntax.texi
@include eval.texi
@include decoders.texi
@include demuxers.texi
@include muxers.texi
@include indevs.texi
@include outdevs.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},
@url{ffmpeg-resampler.html,ffmpeg-resampler},
@url{ffmpeg-codecs.html,ffmpeg-codecs},
@url{ffmpeg-bitstream-filters.html,ffmpeg-bitstream-filters},
@url{ffmpeg-formats.html,ffmpeg-formats},
@url{ffmpeg-devices.html,ffmpeg-devices},
@url{ffmpeg-protocols.html,ffmpeg-protocols},
@url{ffmpeg-filters.html,ffmpeg-filters}
@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),
ffmpeg-devices(1), ffmpeg-protocols(1), ffmpeg-filters(1)
@end ifnothtml
@include authors.texi
@ignore
@setfilename ffplay
@settitle FFplay media player
@c man begin SEEALSO
ffmpeg(1), ffprobe(1), ffserver(1) and the FFmpeg HTML documentation
@c man end
@c man begin AUTHORS
The FFmpeg developers
@c man end
@end ignore
@bye

View File

@@ -11,7 +11,13 @@
@chapter Synopsis
ffprobe [@var{options}] [@file{input_file}]
The generic syntax is:
@example
@c man begin SYNOPSIS
ffprobe [options] [@file{input_file}]
@c man end
@end example
@chapter Description
@c man begin DESCRIPTION
@@ -39,20 +45,15 @@ ffprobe output is designed to be easily parsable by a textual filter,
and consists of one or more sections of a form defined by the selected
writer, which is specified by the @option{print_format} option.
Sections may contain other nested sections, and are identified by a
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
@@ -93,27 +94,8 @@ For example for printing the output in JSON format, specify:
For more details on the available output printing formats, see the
Writers section below.
@item -sections
Print sections structure and section information, and exit. The output
is not meant to be parsed by a machine.
@item -select_streams @var{stream_specifier}
Select only the streams specified by @var{stream_specifier}. This
option affects only the options related to streams
(e.g. @code{show_streams}, @code{show_packets}, etc.).
For example to show only audio streams, you can use the command:
@example
ffprobe -show_streams -select_streams a INPUT
@end example
To show only video packets belonging to the video stream with index 1:
@example
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.
@@ -136,59 +118,6 @@ Like @option{-show_format}, but only prints the specified entry of the
container format information, rather than all. This option may be given more
than once, then all specified entries will be shown.
This option is deprecated, use @code{show_entries} instead.
@item -show_entries @var{section_entries}
Set list of entries to show.
Entries are specified according to the following
syntax. @var{section_entries} contains a list of section entries
separated by @code{:}. Each section entry is composed by a section
name (or unique name), optionally followed by a list of entries local
to that section, separated by @code{,}.
If section name is specified but is followed by no @code{=}, all
entries are printed to output, together with all the contained
sections. Otherwise only the entries specified in the local section
entries list are printed. In particular, if @code{=} is specified but
the list of local entries is empty, then no entries will be shown for
that section.
Note that the order of specification of the local section entries is
not honored in the output, and the usual display order will be
retained.
The formal syntax is given by:
@example
@var{LOCAL_SECTION_ENTRIES} ::= @var{SECTION_ENTRY_NAME}[,@var{LOCAL_SECTION_ENTRIES}]
@var{SECTION_ENTRY} ::= @var{SECTION_NAME}[=[@var{LOCAL_SECTION_ENTRIES}]]
@var{SECTION_ENTRIES} ::= @var{SECTION_ENTRY}[:@var{SECTION_ENTRIES}]
@end example
For example, to show only the index and type of each stream, and the PTS
time, duration time, and stream index of the packets, you can specify
the argument:
@example
packet=pts_time,duration_time,stream_index : stream=index,codec_type
@end example
To show all the entries in the section "format", but only the codec
type in the section "stream", specify the argument:
@example
format : stream=codec_type
@end example
To show all the tags in the stream and format sections:
@example
format_tags : format_tags
@end example
To show only the @code{title} tag (if available) in the stream
sections:
@example
stream_tags=title
@end example
@item -show_packets
Show information about each packet contained in the input multimedia
stream.
@@ -210,18 +139,6 @@ 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.
@@ -230,70 +147,6 @@ 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.
@@ -333,9 +186,8 @@ Read @var{input_file}.
A writer defines the output format adopted by @command{ffprobe}, and will be
used for printing all the parts of the output.
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 ":".
A writer may accept one or more arguments, which specify the options to
adopt.
A description of the currently available writers follows.
@@ -351,8 +203,11 @@ 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:".
This writer accepts options as a list of @var{key}=@var{value} pairs,
separated by ":".
A description of the accepted options follows.
@@ -383,6 +238,9 @@ Metadata tags are printed in the corresponding "format" or "stream"
section. A metadata tag key, if printed, is prefixed by the string
"tag:".
This writer accepts options as a list of @var{key}=@var{value} pairs,
separated by ":".
The description of the accepted options follows.
@table @option
@@ -434,6 +292,9 @@ A free-form output where each line contains an explicit key=value, such as
directly embedded in sh scripts as long as the separator character is an
alphanumeric character or an underscore (see @var{sep_char} option).
This writer accepts options as a list of @var{key}=@var{value} pairs,
separated by ":".
The description of the accepted options follows.
@table @option
@@ -496,6 +357,9 @@ JSON based format.
Each section is printed using JSON notation.
This writer accepts options as a list of @var{key}=@var{value} pairs,
separated by ":".
The description of the accepted options follows.
@table @option
@@ -522,6 +386,9 @@ Note that the output issued will be compliant to the
(@option{unit}, @option{prefix}, @option{byte_binary_prefix},
@option{sexagesimal} etc.) are specified.
This writer accepts options as a list of @var{key}=@var{value} pairs,
separated by ":".
The description of the accepted options follows.
@table @option
@@ -564,74 +431,25 @@ DV, GXF and AVI timecodes are available in format metadata
@end itemize
@c man end TIMECODE
@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 syntax.texi
@include decoders.texi
@include demuxers.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{ffmpeg-utils.html,ffmpeg-utils},
@url{ffmpeg-scaler.html,ffmpeg-scaler},
@url{ffmpeg-resampler.html,ffmpeg-resampler},
@url{ffmpeg-codecs.html,ffmpeg-codecs},
@url{ffmpeg-bitstream-filters.html,ffmpeg-bitstream-filters},
@url{ffmpeg-formats.html,ffmpeg-formats},
@url{ffmpeg-devices.html,ffmpeg-devices},
@url{ffmpeg-protocols.html,ffmpeg-protocols},
@url{ffmpeg-filters.html,ffmpeg-filters}
@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),
ffmpeg-devices(1), ffmpeg-protocols(1), ffmpeg-filters(1)
@end ifnothtml
@include authors.texi
@include indevs.texi
@ignore
@setfilename ffprobe
@settitle ffprobe media prober
@c man begin SEEALSO
ffmpeg(1), ffplay(1), ffserver(1) and the FFmpeg HTML documentation
@c man end
@c man begin AUTHORS
The FFmpeg developers
@c man end
@end ignore
@bye

View File

@@ -11,8 +11,6 @@
<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="streams" type="ffprobe:streamsType" minOccurs="0" maxOccurs="1" />
<xsd:element name="programs" type="ffprobe:programsType" 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" />
@@ -61,7 +59,6 @@
<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" />
<xsd:attribute name="pkt_size" type="xsd:int" />
<!-- audio attributes -->
<xsd:attribute name="sample_fmt" type="xsd:string"/>
@@ -80,6 +77,7 @@
<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:attribute name="reference" type="xsd:int" />
</xsd:complexType>
<xsd:complexType name="streamsType">
@@ -88,29 +86,8 @@
</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" />
<xsd:attribute name="original" type="xsd:int" use="required" />
<xsd:attribute name="comment" type="xsd:int" use="required" />
<xsd:attribute name="lyrics" type="xsd:int" use="required" />
<xsd:attribute name="karaoke" type="xsd:int" use="required" />
<xsd:attribute name="forced" type="xsd:int" use="required" />
<xsd:attribute name="hearing_impaired" type="xsd:int" use="required" />
<xsd:attribute name="visual_impaired" type="xsd:int" use="required" />
<xsd:attribute name="clean_effects" type="xsd:int" use="required" />
<xsd:attribute name="attached_pic" type="xsd:int" use="required" />
</xsd:complexType>
<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:sequence>
@@ -138,7 +115,6 @@
<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"/>
@@ -155,23 +131,6 @@
<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"/>
@@ -179,14 +138,12 @@
<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">
@@ -209,32 +166,12 @@
<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"/>
<xsd:attribute name="minor" type="xsd:int" use="required"/>
<xsd:attribute name="micro" type="xsd:int" use="required"/>
<xsd:attribute name="version" type="xsd:int" use="required"/>
<xsd:attribute name="ident" type="xsd:string" use="required"/>
</xsd:complexType>
<xsd:complexType name="libraryVersionsType">

View File

@@ -25,6 +25,10 @@ MaxBandwidth 1000
# '-' is the standard output.
CustomLog -
# Suppress that if you want to launch ffserver as a daemon.
NoDaemon
##################################################################
# Definition of the live feeds. Each live feed contains one video
# and/or audio sequence coming from an ffmpeg encoder or another

View File

@@ -9,35 +9,52 @@
@contents
@chapter Synopsis
@chapter Synopsys
ffserver [@var{options}]
The generic syntax is:
@example
@c man begin SYNOPSIS
ffserver [options]
@c man end
@end example
@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 in
@file{ffserver.conf}).
ffserver is a streaming server for both audio and video. It supports
@command{ffserver} receives prerecorded files or FFM streams from some
@command{ffmpeg} instance as input, then streams them over
RTP/RTSP/HTTP.
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 ffserver.conf).
An @command{ffserver} instance will listen on some port as specified
in the configuration file. You can launch one or more instances of
@command{ffmpeg} and send one or more FFM streams to the port where
ffserver is expecting to receive them. Alternately, you can make
@command{ffserver} launch such @command{ffmpeg} instances at startup.
ffserver runs in daemon mode by default; that is, it puts itself in
the background and detaches from its TTY, unless it is launched in
debug mode or a NoDaemon option is specified in the configuration
file.
Input streams are called feeds, and each one is specified by a
@code{<Feed>} section in the configuration file.
This documentation covers only the streaming aspects of ffserver /
ffmpeg. All questions about parameters for ffmpeg, codec questions,
etc. are not covered here. Read @file{ffmpeg.html} for more
information.
@section How does it work?
ffserver receives prerecorded files or FFM streams from some ffmpeg
instance as input, then streams them over RTP/RTSP/HTTP.
An ffserver instance will listen on some port as specified in the
configuration file. You can launch one or more instances of ffmpeg and
send one or more FFM streams to the port where ffserver is expecting
to receive them. Alternately, you can make ffserver launch such ffmpeg
instances at startup.
Input streams are called feeds, and each one is specified by a <Feed>
section in the configuration file.
For each feed you can have different output streams in various
formats, each one specified by a @code{<Stream>} section in the
configuration file.
formats, each one specified by a <Stream> section in the configuration
file.
@section Status stream
@@ -73,6 +90,14 @@ 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 What do I need?
I use Linux on a 900 MHz Duron with a cheapo Bt848 based TV capture card. I'm
using stock Linux 2.4.17 with the stock drivers. [Actually that isn't true,
I needed some special drivers for my motherboard-based sound card.]
I understand that FreeBSD systems work just fine as well.
@section How do I make it work?
First, build the kit. It *really* helps to have installed LAME first. Then when
@@ -213,23 +238,10 @@ 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
@@ -242,79 +254,26 @@ 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, directs log
messages to stdout.
messages to stdout and causes ffserver to run in the foreground
rather than as a daemon.
@end table
@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,
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe},
@url{ffmpeg-utils.html,ffmpeg-utils},
@url{ffmpeg-scaler.html,ffmpeg-scaler},
@url{ffmpeg-resampler.html,ffmpeg-resampler},
@url{ffmpeg-codecs.html,ffmpeg-codecs},
@url{ffmpeg-bitstream-filters.html,ffmpeg-bitstream-filters},
@url{ffmpeg-formats.html,ffmpeg-formats},
@url{ffmpeg-devices.html,ffmpeg-devices},
@url{ffmpeg-protocols.html,ffmpeg-protocols},
@url{ffmpeg-filters.html,ffmpeg-filters}
@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),
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)
@end ifnothtml
@include authors.texi
@ignore
@setfilename ffserver
@settitle ffserver video server
@c man begin SEEALSO
ffmpeg(1), ffplay(1), ffprobe(1), the @file{ffserver.conf}
example and the FFmpeg HTML documentation
@c man end
@c man begin AUTHORS
The FFmpeg developers
@c man end
@end ignore
@bye

View File

@@ -1,292 +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 multiplies, 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' for video, 'a' for audio, 's' for subtitle,
'd' for data, and 't' for attachments. 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}
Matches the stream by a format-specific ID.
@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.
@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 -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 number or a string containing one of the following values:
@table @samp
@item quiet
Show nothing at all; be silent.
@item panic
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
Only show fatal errors. These are errors after which the process absolutely
cannot continue after.
@item error
Show all errors, including ones which can be recovered from.
@item warning
Show all warnings and errors. Any message related to possibly
incorrect or unexpected events will be shown.
@item info
Show informative messages during processing. This is in addition to
warnings and errors. This is the default value.
@item verbose
Same as @code{info}, except more verbose.
@item debug
Show everything, including debugging information.
@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
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 xop
@item fma4
@item 3dnow
@item 3dnowext
@item cmov
@end table
@item ARM
@table @samp
@item armv5te
@item armv6
@item armv6t2
@item vfp
@item vfpv3
@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_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.

View File

@@ -15,13 +15,13 @@ Format negotiation
the list of supported formats.
For video links, that means pixel format. For audio links, that means
channel layout, sample format (the sample packing is implied by the sample
format) and sample rate.
channel layout, and sample format (the sample packing is implied by the
sample format).
The lists are not just lists, they are references to shared objects. When
the negotiation mechanism computes the intersection of the formats
supported at each end of a link, all references to both lists are replaced
with a reference to the intersection. And when a single format is
supported at each ends of a link, all references to both lists are
replaced with a reference to the intersection. And when a single format is
eventually chosen for a link amongst the remaining list, again, all
references to the list are updated.
@@ -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
===========================================
@@ -57,7 +52,7 @@ Buffer references ownership and permissions
point to only a part of a video buffer.
A reference is usually obtained as input to the start_frame or
filter_frame method or requested using the ff_get_video_buffer or
filter_samples method or requested using the ff_get_video_buffer or
ff_get_audio_buffer functions. A new reference on an existing buffer can
be created with the avfilter_ref_buffer. A reference is destroyed using
the avfilter_unref_bufferp function.
@@ -73,15 +68,15 @@ Buffer references ownership and permissions
Here are the (fairly obvious) rules for reference ownership:
* A reference received by the filter_frame method (or its start_frame
deprecated version) belongs to the corresponding filter.
* A reference received by the start_frame or filter_samples method
belong to the corresponding filter.
Special exception: for video references: the reference may be used
internally for automatic copying and must not be destroyed before
end_frame; it can be given away to ff_start_frame.
* A reference passed to ff_filter_frame (or the deprecated
ff_start_frame) is given away and must no longer be used.
* A reference passed to ff_start_frame or ff_filter_samples is given
away and must no longer be used.
* A reference created with avfilter_ref_buffer belongs to the code that
created it.
@@ -95,11 +90,27 @@ Buffer references ownership and permissions
Link reference fields
---------------------
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, cur_buf_copy and partial_buf are used by libavfilter internally
and must not be accessed by filters.
The AVFilterLink structure has a few AVFilterBufferRef fields. Here are
the rules to handle them:
* cur_buf is set before the start_frame and filter_samples methods to
the same reference given as argument to the methods and belongs to the
destination filter of the link. If it has not been cleared after
end_frame or filter_samples, libavfilter will automatically destroy
the reference; therefore, any filter that needs to keep the reference
for longer must set cur_buf to NULL.
* out_buf belongs to the source filter of the link and can be used to
store a reference to the buffer that has been sent to the destination.
If it is not NULL after end_frame or filter_samples, libavfilter will
automatically destroy the reference.
If a video input pad does not have a start_frame method, the default
method will request a buffer on the first output of the filter, store
the reference in out_buf and push a second reference to the output.
* src_buf, cur_buf_copy and partial_buf are used by libavfilter
internally and must not be accessed by filters.
Reference permissions
---------------------
@@ -108,10 +119,8 @@ Buffer references ownership and permissions
the code that owns the reference is allowed to do to the buffer data.
Different references for the same buffer can have different permissions.
For video filters that implement the deprecated
start_frame/draw_slice/end_frame API, the permissions only apply to the
parts of the buffer that have already been covered by the draw_slice
method.
For video filters, the permissions only apply to the parts of the buffer
that have already been covered by the draw_slice method.
The value is a binary OR of the following constants:
@@ -166,13 +175,13 @@ 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
is finished (after filter_frame returns) must have the PRESERVE
permission on it and remove the WRITE permission if they create a new
reference to give it away.
is finished (after end_frame or filter_samples returns) must have the
PRESERVE permission on it and remove the WRITE permission if they
create a new reference to give it away.
* Filters that intend to modify a reference they have kept after the end
of the filtering process need the REUSE2 permission and must remove
@@ -189,11 +198,11 @@ Frame scheduling
Simple filters that output one frame for each input frame should not have
to worry about it.
filter_frame
------------
start_frame / filter_samples
----------------------------
This method is called when a frame is pushed to the filter's input. It
can be called at any time except in a reentrant way.
These methods are called when a frame is pushed to the filter's input.
They can be called at any time except in a reentrant way.
If the input frame is enough to produce output, then the filter should
push the output frames on the output link immediately.
@@ -204,7 +213,7 @@ Frame scheduling
filter; these buffered frames must be flushed immediately if a new input
produces new output.
(Example: frame rate-doubling filter: filter_frame must (1) flush the
(Example: framerate-doubling filter: start_frame must (1) flush the
second copy of the previous frame, if it is still there, (2) push the
first copy of the incoming frame, (3) keep the second copy for later.)
@@ -224,8 +233,8 @@ Frame scheduling
This method is called when a frame is wanted on an output.
For an input, it should directly call filter_frame on the corresponding
output.
For an input, it should directly call start_frame or filter_samples on
the corresponding output.
For a filter, if there are queued frames already ready, one of these
frames should be pushed. If not, the filter should request a frame on
@@ -246,7 +255,7 @@ Frame scheduling
}
while (!frame_pushed) {
input = input_where_a_frame_is_most_needed();
ret = ff_request_frame(input);
ret = avfilter_request_frame(input);
if (ret == AVERROR_EOF) {
process_eof_on_input();
} else if (ret < 0) {
@@ -257,14 +266,4 @@ Frame scheduling
Note that, except for filters that can have queued frames, request_frame
does not push frames: it requests them to its input, and as a reaction,
the filter_frame method will be called and do the work.
Legacy API
==========
Until libavfilter 3.23, the filter_frame method was split:
- for video filters, it was made of start_frame, draw_slice (that could be
called several times on distinct parts of the frame) and end_frame;
- for audio filters, it was called filter_samples.
the start_frame / filter_samples method will be called and do the work.

File diff suppressed because it is too large Load Diff

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@@ -1,188 +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 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 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 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 non-negative. A value of 1 enables shifting,
a value of 0 disables it, the default value of -1 enables shifting
when required by the target format.
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.
Also note that this affects only leading negative timestamps, and not
non-monotonic negative timestamps.
@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.
@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.
@include demuxers.texi
@include muxers.texi
@include metadata.texi

View File

@@ -94,20 +94,12 @@ 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 x264
FFmpeg can make use of the x264 library for H.264 encoding.
@@ -133,20 +125,6 @@ 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
@chapter Supported File Formats, Codecs or Features
@@ -174,17 +152,9 @@ 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 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 AVR @tab @tab X
@tab Audio format used on Mac.
@item AVISynth @tab @tab X
@item AVS @tab @tab X
@tab Multimedia format used by the Creature Shock game.
@item Beam Software SIFF @tab @tab X
@@ -198,8 +168,6 @@ 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 BRSTM @tab @tab X
@tab Audio format used on the Nintendo Wii.
@item BWF @tab X @tab X
@item CRI ADX @tab X @tab X
@tab Audio-only format used in console video games.
@@ -230,7 +198,6 @@ library:
@item Electronic Arts cdata @tab @tab X
@item Electronic Arts Multimedia @tab @tab X
@tab Used in various EA games; files have extensions like WVE and UV2.
@item Ensoniq Paris Audio File @tab @tab X
@item FFM (FFserver live feed) @tab X @tab X
@item Flash (SWF) @tab X @tab X
@item Flash 9 (AVM2) @tab X @tab X
@@ -245,7 +212,7 @@ library:
@item G.723.1 @tab X @tab X
@item G.729 BIT @tab X @tab X
@item G.729 raw @tab @tab X
@item GIF Animation @tab X @tab X
@item GIF Animation @tab X @tab
@item GXF @tab X @tab X
@tab General eXchange Format SMPTE 360M, used by Thomson Grass Valley
playout servers.
@@ -265,13 +232,11 @@ library:
@tab A format generated by IndigoVision 8000 video server.
@item IVF (On2) @tab X @tab X
@tab A format used by libvpx
@item IRCAM @tab X @tab X
@item LATM @tab X @tab X
@item LMLM4 @tab @tab X
@tab Used by Linux Media Labs MPEG-4 PCI boards
@item LOAS @tab @tab X
@tab contains LATM multiplexed AAC audio
@item LVF @tab @tab X
@item LXF @tab @tab X
@tab VR native stream format, used by Leitch/Harris' video servers.
@item Matroska @tab X @tab X
@@ -282,8 +247,6 @@ library:
@tab Used in Sim City 3000; file extension .xa.
@item MD Studio @tab @tab X
@item Metal Gear Solid: The Twin Snakes @tab @tab X
@item Megalux Frame @tab @tab X
@tab Used by Megalux Ultimate Paint
@item Mobotix .mxg @tab @tab X
@item Monkey's Audio @tab @tab X
@item Motion Pixels MVI @tab @tab X
@@ -311,7 +274,6 @@ library:
@tab SMPTE 386M, D-10/IMX Mapping.
@item NC camera feed @tab @tab X
@tab NC (AVIP NC4600) camera streams
@item NIST SPeech HEader REsources @tab @tab X
@item NTT TwinVQ (VQF) @tab @tab X
@tab Nippon Telegraph and Telephone Corporation TwinVQ.
@item Nullsoft Streaming Video @tab @tab X
@@ -320,7 +282,6 @@ library:
@tab NUT Open Container Format
@item Ogg @tab X @tab X
@item Playstation Portable PMP @tab @tab X
@item Portable Voice Format @tab @tab X
@item TechnoTrend PVA @tab @tab X
@tab Used by TechnoTrend DVB PCI boards.
@item QCP @tab @tab X
@@ -331,7 +292,6 @@ library:
@item raw Dirac @tab X @tab X
@item raw DNxHD @tab X @tab X
@item raw DTS @tab X @tab X
@item raw DTS-HD @tab @tab X
@item raw E-AC-3 @tab X @tab X
@item raw FLAC @tab X @tab X
@item raw GSM @tab @tab X
@@ -349,9 +309,8 @@ library:
@item raw video @tab X @tab X
@item raw id RoQ @tab X @tab
@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
@@ -377,13 +336,11 @@ 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
@@ -393,7 +350,6 @@ library:
@item SDP @tab @tab X
@item Sega FILM/CPK @tab @tab X
@tab Used in many Sega Saturn console games.
@item Silicon Graphics Movie @tab @tab X
@item Sierra SOL @tab @tab X
@tab .sol files used in Sierra Online games.
@item Sierra VMD @tab @tab X
@@ -407,7 +363,7 @@ library:
@item Sony OpenMG (OMA) @tab X @tab X
@tab Audio format used in Sony Sonic Stage and Sony Vegas.
@item Sony PlayStation STR @tab @tab X
@item Sony Wave64 (W64) @tab X @tab X
@item Sony Wave64 (W64) @tab @tab X
@item SoX native format @tab X @tab X
@item SUN AU format @tab X @tab X
@item Text files @tab @tab X
@@ -417,7 +373,6 @@ 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 Vivo @tab @tab X
@item WAV @tab X @tab X
@item WavPack @tab X @tab X
@item WebM @tab X @tab X
@@ -449,10 +404,9 @@ following image formats are supported:
@item .Y.U.V @tab X @tab X
@tab one raw file per component
@item animated GIF @tab X @tab X
@tab Only uncompressed GIFs are generated.
@item BMP @tab X @tab X
@tab Microsoft BMP image
@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
@@ -488,12 +442,8 @@ 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 @tab X
@tab WebP image format
@item XBM @tab X @tab X
@tab X BitMap image format
@item XFace @tab X @tab X
@tab X-Face image format
@item XWD @tab X @tab X
@tab X Window Dump image format
@end multitable
@@ -509,6 +459,8 @@ following image formats are supported:
@item 4X Movie @tab @tab X
@tab Used in certain computer games.
@item 8088flex TMV @tab @tab X
@item 8SVX exponential @tab @tab X
@item 8SVX fibonacci @tab @tab X
@item A64 multicolor @tab X @tab
@tab Creates video suitable to be played on a commodore 64 (multicolor mode).
@item Amazing Studio PAF Video @tab @tab X
@@ -517,7 +469,6 @@ 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
@@ -600,13 +551,12 @@ following image formats are supported:
@tab Sorenson H.263 used in Flash
@item Forward Uncompressed @tab @tab X
@item Fraps @tab @tab X
@item 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
@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
@@ -659,6 +609,7 @@ following image formats are supported:
@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.
@@ -676,10 +627,6 @@ following image formats are supported:
@tab fourcc: VP60,VP61,VP62
@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
@tab fourcc: apch,apcn,apcs,apco
@item Q-team QPEG @tab @tab X
@@ -703,11 +650,8 @@ 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 Smacker video @tab @tab X
@tab Video encoding used in Smacker.
@item SMPTE VC-1 @tab @tab X
@@ -767,8 +711,7 @@ following image formats are supported:
@multitable @columnfractions .4 .1 .1 .4
@item Name @tab Encoding @tab Decoding @tab Comments
@item 8SVX exponential @tab @tab X
@item 8SVX fibonacci @tab @tab X
@item 8SVX audio @tab @tab X
@item AAC+ @tab E @tab X
@tab encoding supported through external library libaacplus
@item AAC @tab E @tab X
@@ -799,21 +742,19 @@ following image formats are supported:
@item ADPCM IMA Westwood @tab @tab X
@item ADPCM ISS IMA @tab @tab X
@tab Used in FunCom games.
@item ADPCM IMA Dialogic @tab @tab X
@item ADPCM IMA Duck DK3 @tab @tab X
@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 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.
@item ADPCM Shockwave Flash @tab X @tab X
@item ADPCM SMJPEG IMA @tab @tab X
@tab Used in certain Loki game ports.
@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
@@ -827,8 +768,8 @@ 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 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
@@ -851,7 +792,6 @@ following image formats are supported:
@item DSP Group TrueSpeech @tab @tab X
@item DV audio @tab @tab X
@item Enhanced AC-3 @tab X @tab X
@item EVRC (Enhanced Variable Rate Codec) @tab @tab X
@item FLAC (Free Lossless Audio Codec) @tab X @tab IX
@item G.723.1 @tab X @tab X
@item G.729 @tab @tab X
@@ -868,6 +808,7 @@ 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 libtwolame can be used alternatively for encoding.
@@ -877,15 +818,9 @@ following image formats are supported:
@item Musepack SV7 @tab @tab X
@item Musepack SV8 @tab @tab X
@item Nellymoser Asao @tab X @tab X
@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
@item PCM signed 16-bit big-endian planar @tab X @tab X
@item PCM signed 16-bit little-endian planar @tab X @tab X
@item PCM signed 24-bit little-endian planar @tab X @tab X
@item PCM signed 32-bit little-endian planar @tab X @tab X
@item PCM 16-bit little-endian planar @tab @tab X
@item PCM 32-bit floating point big-endian @tab X @tab X
@item PCM 32-bit floating point little-endian @tab X @tab X
@item PCM 64-bit floating point big-endian @tab X @tab X
@@ -922,15 +857,14 @@ 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
@tab experimental codec
@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
@@ -938,9 +872,7 @@ 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
@tab imperfect and incomplete support
@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
@@ -960,34 +892,23 @@ performance on systems without hardware floating point support).
@multitable @columnfractions .4 .1 .1 .1 .1
@item Name @tab Muxing @tab Demuxing @tab Encoding @tab Decoding
@item 3GPP Timed Text @tab @tab @tab X @tab X
@item AQTitle @tab @tab X @tab @tab X
@item SSA/ASS @tab X @tab X @tab X @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
@item MPL2 @tab @tab X @tab @tab X
@item MPsub (MPlayer) @tab @tab X @tab @tab X
@item PGS @tab @tab @tab @tab X
@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 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
@item SubViewer @tab @tab X @tab @tab X
@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 @tab X
@item 3GPP Timed Text @tab @tab @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
@@ -1035,7 +956,7 @@ performance on systems without hardware floating point support).
@item OSS @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
@end multitable

View File

@@ -86,7 +86,7 @@ fail to open.
Set the video size in the captured video.
@item framerate
Set the frame rate in the captured video.
Set the framerate in the captured video.
@item sample_rate
Set the sample rate (in Hz) of the captured audio.
@@ -224,13 +224,6 @@ Set maxiumum size of buffer for incoming data, in frames. For DV, this
is an exact value. For HDV, it is not frame exact, since HDV does
not have a fixed frame size.
@item dvguid
Select the capture device by specifying it's GUID. Capturing will only
be performed from the specified device and fails if no device with the
given GUID is found. This is useful to select the input if multiple
devices are connected at the same time.
Look at /sys/bus/firewire/devices to find out the GUIDs.
@end table
@subsection Examples
@@ -327,12 +320,6 @@ label, but all the others need to be specified explicitly.
If not specified defaults to the filename specified for the input
device.
@item graph_file
Set the filename of the filtergraph to be read and sent to the other
filters. Syntax of the filtergraph is the same as the one specified by
the option @var{graph}.
@end table
@subsection Examples
@@ -341,14 +328,14 @@ the option @var{graph}.
@item
Create a color video stream and play it back with @command{ffplay}:
@example
ffplay -f lavfi -graph "color=c=pink [out0]" dummy
ffplay -f lavfi -graph "color=pink [out0]" dummy
@end example
@item
As the previous example, but use filename for specifying the graph
description, and omit the "out0" label:
@example
ffplay -f lavfi color=c=pink
ffplay -f lavfi color=pink
@end example
@item
@@ -485,52 +472,87 @@ For more information about OSS see:
@section pulse
PulseAudio input device.
pulseaudio input device.
To enable this output device you need to configure FFmpeg with @code{--enable-libpulse}.
To enable this input device during configuration you need libpulse-simple
installed in your system.
The filename to provide to the input device is a source device or the
string "default"
To list the PulseAudio source devices and their properties you can invoke
To list the pulse source devices and their properties you can invoke
the command @command{pactl list sources}.
More information about PulseAudio can be found on @url{http://www.pulseaudio.org}.
@subsection Options
@table @option
@item server
Connect to a specific PulseAudio server, specified by an IP address.
Default server is used when not provided.
@item name
Specify the application name PulseAudio will use when showing active clients,
by default it is the @code{LIBAVFORMAT_IDENT} string.
@item stream_name
Specify the stream name PulseAudio will use when showing active streams,
by default it is "record".
@item sample_rate
Specify the samplerate in Hz, by default 48kHz is used.
@item channels
Specify the channels in use, by default 2 (stereo) is set.
@item frame_size
Specify the number of bytes per frame, by default it is set to 1024.
@item fragment_size
Specify the minimal buffering fragment in PulseAudio, it will affect the
audio latency. By default it is unset.
@end table
@subsection Examples
Record a stream from default device:
@example
ffmpeg -f pulse -i default /tmp/pulse.wav
@end example
@subsection @var{server} AVOption
The syntax is:
@example
-server @var{server name}
@end example
Connects to a specific server.
@subsection @var{name} AVOption
The syntax is:
@example
-name @var{application name}
@end example
Specify the application name pulse will use when showing active clients,
by default it is the LIBAVFORMAT_IDENT string
@subsection @var{stream_name} AVOption
The syntax is:
@example
-stream_name @var{stream name}
@end example
Specify the stream name pulse will use when showing active streams,
by default it is "record"
@subsection @var{sample_rate} AVOption
The syntax is:
@example
-sample_rate @var{samplerate}
@end example
Specify the samplerate in Hz, by default 48kHz is used.
@subsection @var{channels} AVOption
The syntax is:
@example
-channels @var{N}
@end example
Specify the channels in use, by default 2 (stereo) is set.
@subsection @var{frame_size} AVOption
The syntax is:
@example
-frame_size @var{bytes}
@end example
Specify the number of byte per frame, by default it is set to 1024.
@subsection @var{fragment_size} AVOption
The syntax is:
@example
-fragment_size @var{bytes}
@end example
Specify the minimal buffering fragment in pulseaudio, it will affect the
audio latency. By default it is unset.
@section sndio
sndio input device.
@@ -548,16 +570,10 @@ command:
ffmpeg -f sndio -i /dev/audio0 /tmp/oss.wav
@end example
@section video4linux2, v4l2
@section video4linux2
Video4Linux2 input video device.
"v4l2" can be used as alias for "video4linux2".
If FFmpeg is built with v4l-utils support (by using the
@code{--enable-libv4l2} configure option), it is possible to use it with the
@code{-use_libv4l2} input device option.
The name of the device to grab is a file device node, usually Linux
systems tend to automatically create such nodes when the device
(e.g. an USB webcam) is plugged into the system, and has a name of the
@@ -565,10 +581,10 @@ kind @file{/dev/video@var{N}}, where @var{N} is a number associated to
the device.
Video4Linux2 devices usually support a limited set of
@var{width}x@var{height} sizes and frame rates. You can check which are
@var{width}x@var{height} sizes and framerates. You can check which are
supported using @command{-list_formats all} for Video4Linux2 devices.
Some devices, like TV cards, support one or more standards. It is possible
to list all the supported standards using @command{-list_standards all}.
Some usage examples of the video4linux2 devices with ffmpeg and ffplay:
The time base for the timestamps is 1 microsecond. Depending on the kernel
version and configuration, the timestamps may be derived from the real time
@@ -577,94 +593,19 @@ boot time, unaffected by NTP or manual changes to the clock). The
@option{-timestamps abs} or @option{-ts abs} option can be used to force
conversion into the real time clock.
Some usage examples of the video4linux2 device with @command{ffmpeg}
and @command{ffplay}:
@itemize
@item
Grab and show the input of a video4linux2 device:
Note that if FFmpeg is build with v4l-utils support ("--enable-libv4l2"
option), it will always be used.
@example
# Grab and show the input of a video4linux2 device.
ffplay -f video4linux2 -framerate 30 -video_size hd720 /dev/video0
@end example
@item
Grab and record the input of a video4linux2 device, leave the
frame rate and size as previously set:
@example
# Grab and record the input of a video4linux2 device, leave the
framerate and size as previously set.
ffmpeg -f video4linux2 -input_format mjpeg -i /dev/video0 out.mpeg
@end example
@end itemize
For more information about Video4Linux, check @url{http://linuxtv.org/}.
@subsection Options
@table @option
@item standard
Set the standard. Must be the name of a supported standard. To get a
list of the supported standards, use the @option{list_standards}
option.
@item channel
Set the input channel number. Default to -1, which means using the
previously selected channel.
@item video_size
Set the video frame size. The argument must be a string in the form
@var{WIDTH}x@var{HEIGHT} or a valid size abbreviation.
@item pixel_format
Select the pixel format (only valid for raw video input).
@item input_format
Set the preferred pixel format (for raw video) or a codec name.
This option allows to select the input format, when several are
available.
@item framerate
Set the preferred video frame rate.
@item list_formats
List available formats (supported pixel formats, codecs, and frame
sizes) and exit.
Available values are:
@table @samp
@item all
Show all available (compressed and non-compressed) formats.
@item raw
Show only raw video (non-compressed) formats.
@item compressed
Show only compressed formats.
@end table
@item list_standards
List supported standards and exit.
Available values are:
@table @samp
@item all
Show all supported standards.
@end table
@item timestamps, ts
Set type of timestamps for grabbed frames.
Available values are:
@table @samp
@item default
Use timestamps from the kernel.
@item abs
Use absolute timestamps (wall clock).
@item mono2abs
Force conversion from monotonic to absolute timestamps.
@end table
Default value is @code{default}.
@end table
"v4l" and "v4l2" can be used as aliases for the respective "video4linux" and
"video4linux2".
@section vfwcap
@@ -701,12 +642,12 @@ properties of your X11 display (e.g. grep for "name" or "dimensions").
For example to grab from @file{:0.0} using @command{ffmpeg}:
@example
ffmpeg -f x11grab -framerate 25 -video_size cif -i :0.0 out.mpg
ffmpeg -f x11grab -r 25 -s cif -i :0.0 out.mpg
@end example
Grab at position @code{10,20}:
@example
ffmpeg -f x11grab -framerate 25 -video_size cif -i :0.0+10,20 out.mpg
ffmpeg -f x11grab -r 25 -s cif -i :0.0+10,20 out.mpg
@end example
@subsection Options
@@ -727,17 +668,17 @@ zero) to the edge of region.
For example:
@example
ffmpeg -f x11grab -follow_mouse centered -framerate 25 -video_size cif -i :0.0 out.mpg
ffmpeg -f x11grab -follow_mouse centered -r 25 -s cif -i :0.0 out.mpg
@end example
To follow only when the mouse pointer reaches within 100 pixels to edge:
@example
ffmpeg -f x11grab -follow_mouse 100 -framerate 25 -video_size cif -i :0.0 out.mpg
ffmpeg -f x11grab -follow_mouse 100 -r 25 -s cif -i :0.0 out.mpg
@end example
@item framerate
Set the grabbing frame rate. Default value is @code{ntsc},
corresponding to a frame rate of @code{30000/1001}.
corresponding to a framerate of @code{30000/1001}.
@item show_region
Show grabbed region on screen.
@@ -748,12 +689,12 @@ know what is being grabbed if only a portion of the screen is grabbed.
For example:
@example
ffmpeg -f x11grab -show_region 1 -framerate 25 -video_size cif -i :0.0+10,20 out.mpg
ffmpeg -f x11grab -show_region 1 -r 25 -s cif -i :0.0+10,20 out.mpg
@end example
With @var{follow_mouse}:
@example
ffmpeg -f x11grab -follow_mouse centered -show_region 1 -framerate 25 -video_size cif -i :0.0 out.mpg
ffmpeg -f x11grab -follow_mouse centered -show_region 1 -r 25 -s cif -i :0.0 out.mpg
@end example
@item video_size

View File

@@ -1,4 +1,4 @@
FFmpeg's bug/feature request tracker manual
FFmpeg's bug/patch/feature request tracker manual
=================================================
NOTE: This is a draft.
@@ -11,7 +11,7 @@ existing issues can be done through a web interface.
Issues can be different kinds of things we want to keep track of
but that do not belong into the source tree itself. This includes
bug reports, feature requests and license violations. We
bug reports, patches, feature requests and license violations. We
might add more items to this list in the future, so feel free to
propose a new `type of issue' on the ffmpeg-devel mailing list if
you feel it is worth tracking.
@@ -28,9 +28,6 @@ http(s)://trac.ffmpeg.org
Type:
-----
art
Artwork such as photos, music, banners, and logos.
bug / defect
An error, flaw, mistake, failure, or fault in FFmpeg or libav* that
prevents it from behaving as intended.
@@ -44,18 +41,20 @@ feature request / enhancement
license violation
ticket to keep track of (L)GPL violations of ffmpeg by others
sponsoring request
Developer requests for hardware, software, specifications, money,
refunds, etc.
patch
A patch as generated by diff which conforms to the patch submission and
development policy.
Priority:
---------
critical
Bugs about data loss and security issues.
Bugs and patches which deal with data loss and security issues.
No feature request can be critical.
important
Bugs which make FFmpeg unusable for a significant number of users.
Bugs which make FFmpeg unusable for a significant number of users, and
patches fixing them.
Examples here might be completely broken MPEG-4 decoding or a build issue
on Linux.
While broken 4xm decoding or a broken OS/2 build would not be important,
@@ -69,7 +68,7 @@ normal
minor
Bugs about things like spelling errors, "mp2" instead of
Bugs and patches about things like spelling errors, "mp2" instead of
"mp3" being shown and such.
Feature requests about things few people want or which do not make a big
difference.
@@ -104,13 +103,13 @@ This state implicates that the bug either has been reproduced or that
reproduction is not needed as the bug is already understood.
Type/Status:
Type/Status/Substatus:
----------
*/new
Initial state of new bugs and feature requests submitted by
*/new/new
Initial state of new bugs, patches and feature requests submitted by
users.
*/open
*/open/open
Issues which have been briefly looked at and which did not look outright
invalid.
This implicates that no real more detailed state applies yet. Conversely,
@@ -118,7 +117,9 @@ Type/Status:
looked at.
*/closed/duplicate
Bugs or feature requests which are duplicates.
Bugs, patches or feature requests which are duplicates.
Note that patches dealing with the same thing in a different way are not
duplicates.
Note, if you mark something as duplicate, do not forget setting the
superseder so bug reports are properly linked.
@@ -133,7 +134,7 @@ Type/Status:
bug/closed/fixed
Bugs which have to the best of our knowledge been fixed.
bug/closed/wontfix
bug/closed/wont_fix
Bugs which we will not fix. Possible reasons include legality, high
complexity for the sake of supporting obscure corner cases, speed loss
for similarly esoteric purposes, et cetera.
@@ -147,15 +148,33 @@ bug/closed/works_for_me
reproduction failed - that is the code seems to work correctly to the
best of our knowledge.
feature_request/closed/fixed
patch/open/approved
Patches which have been reviewed and approved by a developer.
Such patches can be applied anytime by any other developer after some
reasonable testing (compile + regression tests + does the patch do
what the author claimed).
patch/open/needs_changes
Patches which have been reviewed and need changes to be accepted.
patch/closed/applied
Patches which have been applied.
patch/closed/rejected
Patches which have been rejected.
feature_request/closed/implemented
Feature requests which have been implemented.
feature_request/closed/wontfix
feature_request/closed/wont_implement
Feature requests which will not be implemented. The reasons here could
be legal, philosophical or others.
Note, please do not use type-status-substatus combinations other than the
above without asking on ffmpeg-dev first!
Note2, if you provide the requested info do not forget to remove the
needs_more_info resolution.
needs_more_info substatus.
Component:
----------

View File

@@ -1,48 +0,0 @@
\input texinfo @c -*- texinfo -*-
@settitle Libavcodec Documentation
@titlepage
@center @titlefont{Libavcodec Documentation}
@end titlepage
@top
@contents
@chapter Description
@c man begin DESCRIPTION
The libavcodec library provides a generic encoding/decoding framework
and contains multiple decoders and encoders for audio, video and
subtitle streams, and several bitstream filters.
The shared architecture provides various services ranging from bit
stream I/O to DSP optimizations, and makes it suitable for
implementing robust and fast codecs as well as for experimentation.
@c man end DESCRIPTION
@chapter See Also
@ifhtml
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
@url{ffmpeg-codecs.html,ffmpeg-codecs}, @url{ffmpeg-bitstream-filters.html,bitstream-filters},
@url{libavutil.html,libavutil}
@end ifhtml
@ifnothtml
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1),
ffmpeg-codecs(1), ffmpeg-bitstream-filters(1),
libavutil(3)
@end ifnothtml
@include authors.texi
@ignore
@setfilename libavcodec
@settitle media streams decoding and encoding library
@end ignore
@bye

View File

@@ -1,45 +0,0 @@
\input texinfo @c -*- texinfo -*-
@settitle Libavdevice Documentation
@titlepage
@center @titlefont{Libavdevice Documentation}
@end titlepage
@top
@contents
@chapter Description
@c man begin DESCRIPTION
The libavdevice library provides a generic framework for grabbing from
and rendering to many common multimedia input/output devices, and
supports several input and output devices, including Video4Linux2,
VfW, DShow, and ALSA.
@c man end DESCRIPTION
@chapter See Also
@ifhtml
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
@url{ffmpeg-devices.html,ffmpeg-devices},
@url{libavutil.html,libavutil}, @url{libavcodec.html,libavcodec}, @url{libavformat.html,libavformat}
@end ifhtml
@ifnothtml
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1),
ffmpeg-devices(1),
libavutil(3), libavcodec(3), libavformat(3)
@end ifnothtml
@include authors.texi
@ignore
@setfilename libavdevice
@settitle multimedia device handling library
@end ignore
@bye

View File

@@ -1,44 +0,0 @@
\input texinfo @c -*- texinfo -*-
@settitle Libavfilter Documentation
@titlepage
@center @titlefont{Libavfilter Documentation}
@end titlepage
@top
@contents
@chapter Description
@c man begin DESCRIPTION
The libavfilter library provides a generic audio/video filtering
framework containing several filters, sources and sinks.
@c man end DESCRIPTION
@chapter See Also
@ifhtml
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
@url{ffmpeg-filters.html,ffmpeg-filters},
@url{libavutil.html,libavutil}, @url{libswscale.html,libswscale}, @url{libswresample.html,libswresample},
@url{libavcodec.html,libavcodec}, @url{libavformat.html,libavformat}, @url{libavdevice.html,libavdevice}
@end ifhtml
@ifnothtml
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1),
ffmpeg-filters(1),
libavutil(3), libswscale(3), libswresample(3), libavcodec(3), libavformat(3), libavdevice(3)
@end ifnothtml
@include authors.texi
@ignore
@setfilename libavfilter
@settitle multimedia filtering library
@end ignore
@bye

View File

@@ -1,48 +0,0 @@
\input texinfo @c -*- texinfo -*-
@settitle Libavformat Documentation
@titlepage
@center @titlefont{Libavformat Documentation}
@end titlepage
@top
@contents
@chapter Description
@c man begin DESCRIPTION
The libavformat library provides a generic framework for multiplexing
and demultiplexing (muxing and demuxing) audio, video and subtitle
streams. It encompasses multiple muxers and demuxers for multimedia
container formats.
It also supports several input and output protocols to access a media
resource.
@c man end DESCRIPTION
@chapter See Also
@ifhtml
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
@url{ffmpeg-formats.html,ffmpeg-formats}, @url{ffmpeg-protocols.html,ffmpeg-protocols},
@url{libavutil.html,libavutil}, @url{libavcodec.html,libavcodec}
@end ifhtml
@ifnothtml
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1),
ffmpeg-formats(1), ffmpeg-protocols(1),
libavutil(3), libavcodec(3)
@end ifnothtml
@include authors.texi
@ignore
@setfilename libavformat
@settitle multimedia muxing and demuxing library
@end ignore
@bye

View File

@@ -1,44 +0,0 @@
\input texinfo @c -*- texinfo -*-
@settitle Libavutil Documentation
@titlepage
@center @titlefont{Libavutil Documentation}
@end titlepage
@top
@contents
@chapter Description
@c man begin DESCRIPTION
The libavutil library is a utility library to aid portable
multimedia programming. It contains safe portable string functions,
random number generators, data structures, additional mathematics
functions, cryptography and multimedia related functionality (like
enumerations for pixel and sample formats).
@c man end DESCRIPTION
@chapter See Also
@ifhtml
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
@url{ffmpeg-utils.html,ffmpeg-utils}
@end ifhtml
@ifnothtml
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1),
ffmpeg-utils(1)
@end ifnothtml
@include authors.texi
@ignore
@setfilename libavutil
@settitle multimedia-biased utility library
@end ignore
@bye

View File

@@ -1,70 +0,0 @@
\input texinfo @c -*- texinfo -*-
@settitle Libswresample Documentation
@titlepage
@center @titlefont{Libswresample Documentation}
@end titlepage
@top
@contents
@chapter Description
@c man begin DESCRIPTION
The libswresample library performs highly optimized audio resampling,
rematrixing and sample format conversion operations.
Specifically, this library performs the following conversions:
@itemize
@item
@emph{Resampling}: is the process of changing the audio rate, for
example from a high sample rate of 44100Hz to 8000Hz. Audio
conversion from high to low sample rate is a lossy process. Several
resampling options and algorithms are available.
@item
@emph{Format conversion}: is the process of converting the type of
samples, for example from 16-bit signed samples to unsigned 8-bit or
float samples. It also handles packing conversion, when passing from
packed layout (all samples belonging to distinct channels interleaved
in the same buffer), to planar layout (all samples belonging to the
same channel stored in a dedicated buffer or "plane").
@item
@emph{Rematrixing}: is the process of changing the channel layout, for
example from stereo to mono. When the input channels cannot be mapped
to the output streams, the process is lossy, since it involves
different gain factors and mixing.
@end itemize
Various other audio conversions (e.g. stretching and padding) are
enabled through dedicated options.
@c man end DESCRIPTION
@chapter See Also
@ifhtml
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
@url{ffmpeg-resampler.html,ffmpeg-resampler},
@url{libavutil.html,libavutil}
@end ifhtml
@ifnothtml
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1),
ffmpeg-resampler(1),
libavutil(3)
@end ifnothtml
@include authors.texi
@ignore
@setfilename libswresample
@settitle audio resampling library
@end ignore
@bye

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@@ -1,63 +0,0 @@
\input texinfo @c -*- texinfo -*-
@settitle Libswscale Documentation
@titlepage
@center @titlefont{Libswscale Documentation}
@end titlepage
@top
@contents
@chapter Description
@c man begin DESCRIPTION
The libswscale library performs highly optimized image scaling and
colorspace and pixel format conversion operations.
Specifically, this library performs the following conversions:
@itemize
@item
@emph{Rescaling}: is the process of changing the video size. Several
rescaling options and algorithms are available. This is usually a
lossy process.
@item
@emph{Pixel format conversion}: is the process of converting the image
format and colorspace of the image, for example from planar YUV420P to
RGB24 packed. It also handles packing conversion, that is converts
from packed layout (all pixels belonging to distinct planes
interleaved in the same buffer), to planar layout (all samples
belonging to the same plane stored in a dedicated buffer or "plane").
This is usually a lossy process in case the source and destination
colorspaces differ.
@end itemize
@c man end DESCRIPTION
@chapter See Also
@ifhtml
@url{ffmpeg.html,ffmpeg}, @url{ffplay.html,ffplay}, @url{ffprobe.html,ffprobe}, @url{ffserver.html,ffserver},
@url{ffmpeg-scaler.html,ffmpeg-scaler},
@url{libavutil.html,libavutil}
@end ifhtml
@ifnothtml
ffmpeg(1), ffplay(1), ffprobe(1), ffserver(1),
ffmpeg-scaler(1),
libavutil(3)
@end ifnothtml
@include authors.texi
@ignore
@setfilename libswscale
@settitle video scaling and pixel format conversion library
@end ignore
@bye

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@@ -65,20 +65,4 @@ title=chapter \#1
title=multi\
line
@end example
By using the ffmetadata muxer and demuxer it is possible to extract
metadata from an input file to an ffmetadata file, and then transcode
the file into an output file with the edited ffmetadata file.
Extracting an ffmetadata file with @file{ffmpeg} goes as follows:
@example
ffmpeg -i INPUT -f ffmetadata FFMETADATAFILE
@end example
Reinserting edited metadata information from the FFMETADATAFILE file can
be done as:
@example
ffmpeg -i INPUT -i FFMETADATAFILE -map_metadata 1 -codec copy OUTPUT
@end example
@c man end METADATA

View File

@@ -45,17 +45,8 @@ Example of copyright notice:
Files that have MIPS copyright notice in them:
===============================================
* libavutil/mips/
float_dsp_mips.c
libm_mips.h
* libavcodec/
fft_fixed_32.c
fft_init_table.c
fft_table.h
mdct_fixed_32.c
* libavcodec/mips/
aaccoder_mips.c
aacpsy_mips.h
ac3dsp_mips.c
acelp_filters_mips.c
acelp_vectors_mips.c
amrwbdec_mips.c
@@ -70,6 +61,5 @@ Files that have MIPS copyright notice in them:
fft_table.h
fft_init_table.c
fmtconvert_mips.c
iirfilter_mips.c
mpegaudiodsp_mips_fixed.c
mpegaudiodsp_mips_float.c

View File

@@ -57,11 +57,6 @@ which re-allocates them for other threads.
Add CODEC_CAP_FRAME_THREADS to the codec capabilities. There will be very little
speed gain at this point but it should work.
If there are inter-frame dependencies, so the codec calls
ff_thread_report/await_progress(), set AVCodecInternal.allocate_progress. The
frames must then be freed with ff_thread_release_buffer().
Otherwise leave it at zero and decode directly into the user-supplied frames.
Call ff_thread_report_progress() after some part of the current picture has decoded.
A good place to put this is where draw_horiz_band() is called - add this if it isn't
called anywhere, as it's useful too and the implementation is trivial when you're

View File

@@ -146,32 +146,6 @@ ffmpeg -i INPUT -f framemd5 -
See also the @ref{md5} muxer.
@anchor{hls}
@section hls
Apple HTTP Live Streaming muxer that segments MPEG-TS according to
the HTTP Live Streaming specification.
It creates a playlist file and numbered segment files. The output
filename specifies the playlist filename; the segment filenames
receive the same basename as the playlist, a sequential number and
a .ts extension.
@example
ffmpeg -i in.nut out.m3u8
@end example
@table @option
@item -hls_time @var{seconds}
Set the segment length in seconds.
@item -hls_list_size @var{size}
Set the maximum number of playlist entries.
@item -hls_wrap @var{wrap}
Set the number after which index wraps.
@item -start_number @var{number}
Start the sequence from @var{number}.
@end table
@anchor{ico}
@section ico
@@ -257,24 +231,173 @@ Note also that the pattern must not necessarily contain "%d" or
ffmpeg -i in.avi -f image2 -frames:v 1 img.jpeg
@end example
@table @option
@item start_number @var{number}
Start the sequence from @var{number}. Default value is 1. Must be a
non-negative number.
@item -update @var{number}
If @var{number} is nonzero, the filename will always be interpreted as just a
filename, not a pattern, and this file will be continuously overwritten with new
images.
@end table
The image muxer supports the .Y.U.V image file format. This format is
special in that that each image frame consists of three files, for
each of the YUV420P components. To read or write this image file format,
specify the name of the '.Y' file. The muxer will automatically open the
'.U' and '.V' files as required.
@anchor{md5}
@section md5
MD5 testing format.
This muxer computes and prints the MD5 hash of all the input audio
and video frames. By default audio frames are converted to signed
16-bit raw audio and video frames to raw video before computing the
hash.
The output of the muxer consists of a single line of the form:
MD5=@var{MD5}, where @var{MD5} is a hexadecimal number representing
the computed MD5 hash.
For example to compute the MD5 hash of the input converted to raw
audio and video, and store it in the file @file{out.md5}:
@example
ffmpeg -i INPUT -f md5 out.md5
@end example
You can print the MD5 to stdout with the command:
@example
ffmpeg -i INPUT -f md5 -
@end example
See also the @ref{framemd5} muxer.
@section MOV/MP4/ISMV
The mov/mp4/ismv muxer supports fragmentation. Normally, a MOV/MP4
file has all the metadata about all packets stored in one location
(written at the end of the file, it can be moved to the start for
better playback using the @command{qt-faststart} tool). A fragmented
file consists of a number of fragments, where packets and metadata
about these packets are stored together. Writing a fragmented
file has the advantage that the file is decodable even if the
writing is interrupted (while a normal MOV/MP4 is undecodable if
it is not properly finished), and it requires less memory when writing
very long files (since writing normal MOV/MP4 files stores info about
every single packet in memory until the file is closed). The downside
is that it is less compatible with other applications.
Fragmentation is enabled by setting one of the AVOptions that define
how to cut the file into fragments:
@table @option
@item -moov_size @var{bytes}
Reserves space for the moov atom at the beginning of the file instead of placing the
moov atom at the end. If the space reserved is insufficient, muxing will fail.
@item -movflags frag_keyframe
Start a new fragment at each video keyframe.
@item -frag_duration @var{duration}
Create fragments that are @var{duration} microseconds long.
@item -frag_size @var{size}
Create fragments that contain up to @var{size} bytes of payload data.
@item -movflags frag_custom
Allow the caller to manually choose when to cut fragments, by
calling @code{av_write_frame(ctx, NULL)} to write a fragment with
the packets written so far. (This is only useful with other
applications integrating libavformat, not from @command{ffmpeg}.)
@item -min_frag_duration @var{duration}
Don't create fragments that are shorter than @var{duration} microseconds long.
@end table
If more than one condition is specified, fragments are cut when
one of the specified conditions is fulfilled. The exception to this is
@code{-min_frag_duration}, which has to be fulfilled for any of the other
conditions to apply.
Additionally, the way the output file is written can be adjusted
through a few other options:
@table @option
@item -movflags empty_moov
Write an initial moov atom directly at the start of the file, without
describing any samples in it. Generally, an mdat/moov pair is written
at the start of the file, as a normal MOV/MP4 file, containing only
a short portion of the file. With this option set, there is no initial
mdat atom, and the moov atom only describes the tracks but has
a zero duration.
Files written with this option set do not work in QuickTime.
This option is implicitly set when writing ismv (Smooth Streaming) files.
@item -movflags separate_moof
Write a separate moof (movie fragment) atom for each track. Normally,
packets for all tracks are written in a moof atom (which is slightly
more efficient), but with this option set, the muxer writes one moof/mdat
pair for each track, making it easier to separate tracks.
This option is implicitly set when writing ismv (Smooth Streaming) files.
@end table
Smooth Streaming content can be pushed in real time to a publishing
point on IIS with this muxer. Example:
@example
ffmpeg -re @var{<normal input/transcoding options>} -movflags isml+frag_keyframe -f ismv http://server/publishingpoint.isml/Streams(Encoder1)
@end example
@section mpegts
MPEG transport stream muxer.
This muxer implements ISO 13818-1 and part of ETSI EN 300 468.
The muxer options are:
@table @option
@item -mpegts_original_network_id @var{number}
Set the original_network_id (default 0x0001). This is unique identifier
of a network in DVB. Its main use is in the unique identification of a
service through the path Original_Network_ID, Transport_Stream_ID.
@item -mpegts_transport_stream_id @var{number}
Set the transport_stream_id (default 0x0001). This identifies a
transponder in DVB.
@item -mpegts_service_id @var{number}
Set the service_id (default 0x0001) also known as program in DVB.
@item -mpegts_pmt_start_pid @var{number}
Set the first PID for PMT (default 0x1000, max 0x1f00).
@item -mpegts_start_pid @var{number}
Set the first PID for data packets (default 0x0100, max 0x0f00).
@end table
The recognized metadata settings in mpegts muxer are @code{service_provider}
and @code{service_name}. If they are not set the default for
@code{service_provider} is "FFmpeg" and the default for
@code{service_name} is "Service01".
@example
ffmpeg -i file.mpg -c copy \
-mpegts_original_network_id 0x1122 \
-mpegts_transport_stream_id 0x3344 \
-mpegts_service_id 0x5566 \
-mpegts_pmt_start_pid 0x1500 \
-mpegts_start_pid 0x150 \
-metadata service_provider="Some provider" \
-metadata service_name="Some Channel" \
-y out.ts
@end example
@section null
Null muxer.
This muxer does not generate any output file, it is mainly useful for
testing or benchmarking purposes.
For example to benchmark decoding with @command{ffmpeg} you can use the
command:
@example
ffmpeg -benchmark -i INPUT -f null out.null
@end example
Note that the above command does not read or write the @file{out.null}
file, but specifying the output file is required by the @command{ffmpeg}
syntax.
Alternatively you can write the command as:
@example
ffmpeg -benchmark -i INPUT -f null -
@end example
@section matroska
Matroska container muxer.
@@ -338,132 +461,174 @@ For example a 3D WebM clip can be created using the following command line:
ffmpeg -i sample_left_right_clip.mpg -an -c:v libvpx -metadata stereo_mode=left_right -y stereo_clip.webm
@end example
This muxer supports the following options:
@section segment, stream_segment, ssegment
Basic stream segmenter.
The segmenter muxer outputs streams to a number of separate files of nearly
fixed duration. Output filename pattern can be set in a fashion similar to
@ref{image2}.
@code{stream_segment} is a variant of the muxer used to write to
streaming output formats, i.e. which do not require global headers,
and is recommended for outputting e.g. to MPEG transport stream segments.
@code{ssegment} is a shorter alias for @code{stream_segment}.
Every segment starts with a video keyframe, if a video stream is present.
Note that if you want accurate splitting for a video file, you need to
make the input key frames correspond to the exact splitting times
expected by the segmenter, or the segment muxer will start the new
segment with the key frame found next after the specified start
time.
The segment muxer works best with a single constant frame rate video.
Optionally it can generate a list of the created segments, by setting
the option @var{segment_list}. The list type is specified by the
@var{segment_list_type} option.
The segment muxer supports the following options:
@table @option
@item segment_format @var{format}
Override the inner container format, by default it is guessed by the filename
extension.
@item segment_list @var{name}
Generate also a listfile named @var{name}. If not specified no
listfile is generated.
@item segment_list_flags @var{flags}
Set flags affecting the segment list generation.
@item reserve_index_space
By default, this muxer writes the index for seeking (called cues in Matroska
terms) at the end of the file, because it cannot know in advance how much space
to leave for the index at the beginning of the file. However for some use cases
-- e.g. streaming where seeking is possible but slow -- it is useful to put the
index at the beginning of the file.
It currently supports the following flags:
@table @var
@item cache
Allow caching (only affects M3U8 list files).
If this option is set to a non-zero value, the muxer will reserve a given amount
of space in the file header and then try to write the cues there when the muxing
finishes. If the available space does not suffice, muxing will fail. A safe size
for most use cases should be about 50kB per hour of video.
Note that cues are only written if the output is seekable and this option will
have no effect if it is not.
@item live
Allow live-friendly file generation.
This currently only affects M3U8 lists. In particular, write a fake
EXT-X-TARGETDURATION duration field at the top of the file, based on
the specified @var{segment_time}.
@end table
@anchor{md5}
@section md5
Default value is @code{cache}.
MD5 testing format.
This muxer computes and prints the MD5 hash of all the input audio
and video frames. By default audio frames are converted to signed
16-bit raw audio and video frames to raw video before computing the
hash.
The output of the muxer consists of a single line of the form:
MD5=@var{MD5}, where @var{MD5} is a hexadecimal number representing
the computed MD5 hash.
For example to compute the MD5 hash of the input converted to raw
audio and video, and store it in the file @file{out.md5}:
@example
ffmpeg -i INPUT -f md5 out.md5
@end example
You can print the MD5 to stdout with the command:
@example
ffmpeg -i INPUT -f md5 -
@end example
See also the @ref{framemd5} muxer.
@section MOV/MP4/ISMV
The mov/mp4/ismv muxer supports fragmentation. Normally, a MOV/MP4
file has all the metadata about all packets stored in one location
(written at the end of the file, it can be moved to the start for
better playback by adding @var{faststart} to the @var{movflags}, or
using the @command{qt-faststart} tool). A fragmented
file consists of a number of fragments, where packets and metadata
about these packets are stored together. Writing a fragmented
file has the advantage that the file is decodable even if the
writing is interrupted (while a normal MOV/MP4 is undecodable if
it is not properly finished), and it requires less memory when writing
very long files (since writing normal MOV/MP4 files stores info about
every single packet in memory until the file is closed). The downside
is that it is less compatible with other applications.
Fragmentation is enabled by setting one of the AVOptions that define
how to cut the file into fragments:
@item segment_list_size @var{size}
Overwrite the listfile once it reaches @var{size} entries. If 0
the listfile is never overwritten. Default value is 0.
@item segment_list type @var{type}
Specify the format for the segment list file.
The following values are recognized:
@table @option
@item -moov_size @var{bytes}
Reserves space for the moov atom at the beginning of the file instead of placing the
moov atom at the end. If the space reserved is insufficient, muxing will fail.
@item -movflags frag_keyframe
Start a new fragment at each video keyframe.
@item -frag_duration @var{duration}
Create fragments that are @var{duration} microseconds long.
@item -frag_size @var{size}
Create fragments that contain up to @var{size} bytes of payload data.
@item -movflags frag_custom
Allow the caller to manually choose when to cut fragments, by
calling @code{av_write_frame(ctx, NULL)} to write a fragment with
the packets written so far. (This is only useful with other
applications integrating libavformat, not from @command{ffmpeg}.)
@item -min_frag_duration @var{duration}
Don't create fragments that are shorter than @var{duration} microseconds long.
@end table
@item flat
Generate a flat list for the created segments, one segment per line.
If more than one condition is specified, fragments are cut when
one of the specified conditions is fulfilled. The exception to this is
@code{-min_frag_duration}, which has to be fulfilled for any of the other
conditions to apply.
Additionally, the way the output file is written can be adjusted
through a few other options:
@table @option
@item -movflags empty_moov
Write an initial moov atom directly at the start of the file, without
describing any samples in it. Generally, an mdat/moov pair is written
at the start of the file, as a normal MOV/MP4 file, containing only
a short portion of the file. With this option set, there is no initial
mdat atom, and the moov atom only describes the tracks but has
a zero duration.
Files written with this option set do not work in QuickTime.
This option is implicitly set when writing ismv (Smooth Streaming) files.
@item -movflags separate_moof
Write a separate moof (movie fragment) atom for each track. Normally,
packets for all tracks are written in a moof atom (which is slightly
more efficient), but with this option set, the muxer writes one moof/mdat
pair for each track, making it easier to separate tracks.
This option is implicitly set when writing ismv (Smooth Streaming) files.
@item -movflags faststart
Run a second pass moving the index (moov atom) to the beginning of the file.
This operation can take a while, and will not work in various situations such
as fragmented output, thus it is not enabled by default.
@item -movflags rtphint
Add RTP hinting tracks to the output file.
@end table
Smooth Streaming content can be pushed in real time to a publishing
point on IIS with this muxer. Example:
@item csv, ext
Generate a list for the created segments, one segment per line,
each line matching the format (comma-separated values):
@example
ffmpeg -re @var{<normal input/transcoding options>} -movflags isml+frag_keyframe -f ismv http://server/publishingpoint.isml/Streams(Encoder1)
@var{segment_filename},@var{segment_start_time},@var{segment_end_time}
@end example
@var{segment_filename} is the name of the output file generated by the
muxer according to the provided pattern. CSV escaping (according to
RFC4180) is applied if required.
@var{segment_start_time} and @var{segment_end_time} specify
the segment start and end time expressed in seconds.
A list file with the suffix @code{".csv"} or @code{".ext"} will
auto-select this format.
@code{ext} is deprecated in favor or @code{csv}.
@item m3u8
Generate an extended M3U8 file, version 4, compliant with
@url{http://tools.ietf.org/id/draft-pantos-http-live-streaming-08.txt}.
A list file with the suffix @code{".m3u8"} will auto-select this format.
@end table
If not specified the type is guessed from the list file name suffix.
@item segment_time @var{time}
Set segment duration to @var{time}. Default value is "2".
@item segment_time_delta @var{delta}
Specify the accuracy time when selecting the start time for a
segment. Default value is "0".
When delta is specified a key-frame will start a new segment if its
PTS satisfies the relation:
@example
PTS >= start_time - time_delta
@end example
This option is useful when splitting video content, which is always
split at GOP boundaries, in case a key frame is found just before the
specified split time.
In particular may be used in combination with the @file{ffmpeg} option
@var{force_key_frames}. The key frame times specified by
@var{force_key_frames} may not be set accurately because of rounding
issues, with the consequence that a key frame time may result set just
before the specified time. For constant frame rate videos a value of
1/2*@var{frame_rate} should address the worst case mismatch between
the specified time and the time set by @var{force_key_frames}.
@item segment_times @var{times}
Specify a list of split points. @var{times} contains a list of comma
separated duration specifications, in increasing order.
@item segment_wrap @var{limit}
Wrap around segment index once it reaches @var{limit}.
@end table
Some examples follow.
@itemize
@item
To remux the content of file @file{in.mkv} to a list of segments
@file{out-000.nut}, @file{out-001.nut}, etc., and write the list of
generated segments to @file{out.list}:
@example
ffmpeg -i in.mkv -codec copy -map 0 -f segment -segment_list out.list out%03d.nut
@end example
@item
As the example above, but segment the input file according to the split
points specified by the @var{segment_times} option:
@example
ffmpeg -i in.mkv -codec copy -map 0 -f segment -segment_list out.csv -segment_times 1,2,3,5,8,13,21 out%03d.nut
@end example
@item
As the example above, but use the @code{ffmpeg} @var{force_key_frames}
option to force key frames in the input at the specified location, together
with the segment option @var{segment_time_delta} to account for
possible roundings operated when setting key frame times.
@example
ffmpeg -i in.mkv -force_key_frames 1,2,3,5,8,13,21 -vcodec mpeg4 -acodec pcm_s16le -map 0 \
-f segment -segment_list out.csv -segment_times 1,2,3,5,8,13,21 -segment_time_delta 0.05 out%03d.nut
@end example
In order to force key frames on the input file, transcoding is
required.
@item
To convert the @file{in.mkv} to TS segments using the @code{libx264}
and @code{libfaac} encoders:
@example
ffmpeg -i in.mkv -map 0 -codec:v libx264 -codec:a libfaac -f ssegment -segment_list out.list out%03d.ts
@end example
@item
Segment the input file, and create an M3U8 live playlist (can be used
as live HLS source):
@example
ffmpeg -re -i in.mkv -codec copy -map 0 -f segment -segment_list playlist.m3u8 \
-segment_list_flags +live -segment_time 10 out%03d.mkv
@end example
@end itemize
@section mp3
The MP3 muxer writes a raw MP3 stream with an ID3v2 header at the beginning and
@@ -500,409 +665,4 @@ ffmpeg -i input.mp3 -i cover.png -c copy -map 0 -map 1
-metadata:s:v title="Album cover" -metadata:s:v comment="Cover (Front)" out.mp3
@end example
@section mpegts
MPEG transport stream muxer.
This muxer implements ISO 13818-1 and part of ETSI EN 300 468.
The muxer options are:
@table @option
@item -mpegts_original_network_id @var{number}
Set the original_network_id (default 0x0001). This is unique identifier
of a network in DVB. Its main use is in the unique identification of a
service through the path Original_Network_ID, Transport_Stream_ID.
@item -mpegts_transport_stream_id @var{number}
Set the transport_stream_id (default 0x0001). This identifies a
transponder in DVB.
@item -mpegts_service_id @var{number}
Set the service_id (default 0x0001) also known as program in DVB.
@item -mpegts_pmt_start_pid @var{number}
Set the first PID for PMT (default 0x1000, max 0x1f00).
@item -mpegts_start_pid @var{number}
Set the first PID for data packets (default 0x0100, max 0x0f00).
@item -mpegts_m2ts_mode @var{number}
Enable m2ts mode if set to 1. Default value is -1 which disables m2ts mode.
@item -muxrate @var{number}
Set muxrate.
@item -pes_payload_size @var{number}
Set minimum PES packet payload in bytes.
@item -mpegts_flags @var{flags}
Set flags (see below).
@item -mpegts_copyts @var{number}
Preserve original timestamps, if value is set to 1. Default value is -1, which
results in shifting timestamps so that they start from 0.
@item -tables_version @var{number}
Set PAT, PMT and SDT version (default 0, valid values are from 0 to 31, inclusively).
This option allows updating stream structure so that standard consumer may
detect the change. To do so, reopen output AVFormatContext (in case of API
usage) or restart ffmpeg instance, cyclically changing tables_version value:
@example
ffmpeg -i source1.ts -codec copy -f mpegts -tables_version 0 udp://1.1.1.1:1111
ffmpeg -i source2.ts -codec copy -f mpegts -tables_version 1 udp://1.1.1.1:1111
...
ffmpeg -i source3.ts -codec copy -f mpegts -tables_version 31 udp://1.1.1.1:1111
ffmpeg -i source1.ts -codec copy -f mpegts -tables_version 0 udp://1.1.1.1:1111
ffmpeg -i source2.ts -codec copy -f mpegts -tables_version 1 udp://1.1.1.1:1111
...
@end example
@end table
Option mpegts_flags may take a set of such flags:
@table @option
@item resend_headers
Reemit PAT/PMT before writing the next packet.
@item latm
Use LATM packetization for AAC.
@end table
The recognized metadata settings in mpegts muxer are @code{service_provider}
and @code{service_name}. If they are not set the default for
@code{service_provider} is "FFmpeg" and the default for
@code{service_name} is "Service01".
@example
ffmpeg -i file.mpg -c copy \
-mpegts_original_network_id 0x1122 \
-mpegts_transport_stream_id 0x3344 \
-mpegts_service_id 0x5566 \
-mpegts_pmt_start_pid 0x1500 \
-mpegts_start_pid 0x150 \
-metadata service_provider="Some provider" \
-metadata service_name="Some Channel" \
-y out.ts
@end example
@section null
Null muxer.
This muxer does not generate any output file, it is mainly useful for
testing or benchmarking purposes.
For example to benchmark decoding with @command{ffmpeg} you can use the
command:
@example
ffmpeg -benchmark -i INPUT -f null out.null
@end example
Note that the above command does not read or write the @file{out.null}
file, but specifying the output file is required by the @command{ffmpeg}
syntax.
Alternatively you can write the command as:
@example
ffmpeg -benchmark -i INPUT -f null -
@end example
@section ogg
Ogg container muxer.
@table @option
@item -page_duration @var{duration}
Preferred page duration, in microseconds. The muxer will attempt to create
pages that are approximately @var{duration} microseconds long. This allows the
user to compromise between seek granularity and container overhead. The default
is 1 second. A value of 0 will fill all segments, making pages as large as
possible. A value of 1 will effectively use 1 packet-per-page in most
situations, giving a small seek granularity at the cost of additional container
overhead.
@end table
@section segment, stream_segment, ssegment
Basic stream segmenter.
The segmenter muxer outputs streams to a number of separate files of nearly
fixed duration. Output filename pattern can be set in a fashion similar to
@ref{image2}.
@code{stream_segment} is a variant of the muxer used to write to
streaming output formats, i.e. which do not require global headers,
and is recommended for outputting e.g. to MPEG transport stream segments.
@code{ssegment} is a shorter alias for @code{stream_segment}.
Every segment starts with a keyframe of the selected reference stream,
which is set through the @option{reference_stream} option.
Note that if you want accurate splitting for a video file, you need to
make the input key frames correspond to the exact splitting times
expected by the segmenter, or the segment muxer will start the new
segment with the key frame found next after the specified start
time.
The segment muxer works best with a single constant frame rate video.
Optionally it can generate a list of the created segments, by setting
the option @var{segment_list}. The list type is specified by the
@var{segment_list_type} option.
The segment muxer supports the following options:
@table @option
@item reference_stream @var{specifier}
Set the reference stream, as specified by the string @var{specifier}.
If @var{specifier} is set to @code{auto}, the reference is choosen
automatically. Otherwise it must be a stream specifier (see the ``Stream
specifiers'' chapter in the ffmpeg manual) which specifies the
reference stream. The default value is @code{auto}.
@item segment_format @var{format}
Override the inner container format, by default it is guessed by the filename
extension.
@item segment_list @var{name}
Generate also a listfile named @var{name}. If not specified no
listfile is generated.
@item segment_list_flags @var{flags}
Set flags affecting the segment list generation.
It currently supports the following flags:
@table @samp
@item cache
Allow caching (only affects M3U8 list files).
@item live
Allow live-friendly file generation.
@end table
Default value is @code{samp}.
@item segment_list_size @var{size}
Update the list file so that it contains at most the last @var{size}
segments. If 0 the list file will contain all the segments. Default
value is 0.
@item segment_list_type @var{type}
Specify the format for the segment list file.
The following values are recognized:
@table @samp
@item flat
Generate a flat list for the created segments, one segment per line.
@item csv, ext
Generate a list for the created segments, one segment per line,
each line matching the format (comma-separated values):
@example
@var{segment_filename},@var{segment_start_time},@var{segment_end_time}
@end example
@var{segment_filename} is the name of the output file generated by the
muxer according to the provided pattern. CSV escaping (according to
RFC4180) is applied if required.
@var{segment_start_time} and @var{segment_end_time} specify
the segment start and end time expressed in seconds.
A list file with the suffix @code{".csv"} or @code{".ext"} will
auto-select this format.
@samp{ext} is deprecated in favor or @samp{csv}.
@item ffconcat
Generate an ffconcat file for the created segments. The resulting file
can be read using the FFmpeg @ref{concat} demuxer.
A list file with the suffix @code{".ffcat"} or @code{".ffconcat"} will
auto-select this format.
@item m3u8
Generate an extended M3U8 file, version 3, compliant with
@url{http://tools.ietf.org/id/draft-pantos-http-live-streaming}.
A list file with the suffix @code{".m3u8"} will auto-select this format.
@end table
If not specified the type is guessed from the list file name suffix.
@item segment_time @var{time}
Set segment duration to @var{time}, the value must be a duration
specification. Default value is "2". See also the
@option{segment_times} option.
Note that splitting may not be accurate, unless you force the
reference stream key-frames at the given time. See the introductory
notice and the examples below.
@item segment_time_delta @var{delta}
Specify the accuracy time when selecting the start time for a
segment, expressed as a duration specification. Default value is "0".
When delta is specified a key-frame will start a new segment if its
PTS satisfies the relation:
@example
PTS >= start_time - time_delta
@end example
This option is useful when splitting video content, which is always
split at GOP boundaries, in case a key frame is found just before the
specified split time.
In particular may be used in combination with the @file{ffmpeg} option
@var{force_key_frames}. The key frame times specified by
@var{force_key_frames} may not be set accurately because of rounding
issues, with the consequence that a key frame time may result set just
before the specified time. For constant frame rate videos a value of
1/2*@var{frame_rate} should address the worst case mismatch between
the specified time and the time set by @var{force_key_frames}.
@item segment_times @var{times}
Specify a list of split points. @var{times} contains a list of comma
separated duration specifications, in increasing order. See also
the @option{segment_time} option.
@item segment_frames @var{frames}
Specify a list of split video frame numbers. @var{frames} contains a
list of comma separated integer numbers, in increasing order.
This option specifies to start a new segment whenever a reference
stream key frame is found and the sequential number (starting from 0)
of the frame is greater or equal to the next value in the list.
@item segment_wrap @var{limit}
Wrap around segment index once it reaches @var{limit}.
@item segment_start_number @var{number}
Set the sequence number of the first segment. Defaults to @code{0}.
@item reset_timestamps @var{1|0}
Reset timestamps at the begin of each segment, so that each segment
will start with near-zero timestamps. It is meant to ease the playback
of the generated segments. May not work with some combinations of
muxers/codecs. It is set to @code{0} by default.
@item initial_offset @var{offset}
Specify timestamp offset to apply to the output packet timestamps. The
argument must be a time duration specification, and defaults to 0.
@end table
@subsection Examples
@itemize
@item
To remux the content of file @file{in.mkv} to a list of segments
@file{out-000.nut}, @file{out-001.nut}, etc., and write the list of
generated segments to @file{out.list}:
@example
ffmpeg -i in.mkv -codec copy -map 0 -f segment -segment_list out.list out%03d.nut
@end example
@item
As the example above, but segment the input file according to the split
points specified by the @var{segment_times} option:
@example
ffmpeg -i in.mkv -codec copy -map 0 -f segment -segment_list out.csv -segment_times 1,2,3,5,8,13,21 out%03d.nut
@end example
@item
As the example above, but use the @command{ffmpeg} @option{force_key_frames}
option to force key frames in the input at the specified location, together
with the segment option @option{segment_time_delta} to account for
possible roundings operated when setting key frame times.
@example
ffmpeg -i in.mkv -force_key_frames 1,2,3,5,8,13,21 -codec:v mpeg4 -codec:a pcm_s16le -map 0 \
-f segment -segment_list out.csv -segment_times 1,2,3,5,8,13,21 -segment_time_delta 0.05 out%03d.nut
@end example
In order to force key frames on the input file, transcoding is
required.
@item
Segment the input file by splitting the input file according to the
frame numbers sequence specified with the @option{segment_frames} option:
@example
ffmpeg -i in.mkv -codec copy -map 0 -f segment -segment_list out.csv -segment_frames 100,200,300,500,800 out%03d.nut
@end example
@item
To convert the @file{in.mkv} to TS segments using the @code{libx264}
and @code{libfaac} encoders:
@example
ffmpeg -i in.mkv -map 0 -codec:v libx264 -codec:a libfaac -f ssegment -segment_list out.list out%03d.ts
@end example
@item
Segment the input file, and create an M3U8 live playlist (can be used
as live HLS source):
@example
ffmpeg -re -i in.mkv -codec copy -map 0 -f segment -segment_list playlist.m3u8 \
-segment_list_flags +live -segment_time 10 out%03d.mkv
@end example
@end itemize
@section tee
The tee muxer can be used to write the same data to several files or any
other kind of muxer. It can be used, for example, to both stream a video to
the network and save it to disk at the same time.
It is different from specifying several outputs to the @command{ffmpeg}
command-line tool because the audio and video data will be encoded only once
with the tee muxer; encoding can be a very expensive process. It is not
useful when using the libavformat API directly because it is then possible
to feed the same packets to several muxers directly.
The slave outputs are specified in the file name given to the muxer,
separated by '|'. If any of the slave name contains the '|' separator,
leading or trailing spaces or any special character, it must be
escaped (see the ``Quoting and escaping'' section in the ffmpeg-utils
manual).
Muxer options can be specified for each slave by prepending them as a list of
@var{key}=@var{value} pairs separated by ':', between square brackets. If
the options values contain a special character or the ':' separator, they
must be escaped; note that this is a second level escaping.
The following special options are also recognized:
@table @option
@item f
Specify the format name. Useful if it cannot be guessed from the
output name suffix.
@item bsfs[/@var{spec}]
Specify a list of bitstream filters to apply to the specified
output. It is possible to specify to which streams a given bitstream
filter applies, by appending a stream specifier to the option
separated by @code{/}. If the stream specifier is not specified, the
bistream filters will be applied to all streams in the output.
Several bitstream filters can be specified, separated by ",".
@item select
Select the streams that should be mapped to the slave output,
specified by a stream specifier. If not specified, this defaults to
all the input streams.
@end table
Some examples follow.
@itemize
@item
Encode something and both archive it in a WebM file and stream it
as MPEG-TS over UDP (the streams need to be explicitly mapped):
@example
ffmpeg -i ... -c:v libx264 -c:a mp2 -f tee -map 0:v -map 0:a
"archive-20121107.mkv|[f=mpegts]udp://10.0.1.255:1234/"
@end example
@item
Use @command{ffmpeg} to encode the input, and send the output
to three different destinations. The @code{dump_extra} bitstream
filter is used to add extradata information to all the output video
keyframes packets, as requested by the MPEG-TS format. The select
option is applied to @file{out.aac} in order to make it contain only
audio packets.
@example
ffmpeg -i ... -map 0 -flags +global_header -c:v libx264 -c:a aac -strict experimental
-f tee "[bsfs/v=dump_extra]out.ts|[movflags=+faststart]out.mp4|[select=a]out.aac"
@end example
@end itemize
Note: some codecs may need different options depending on the output format;
the auto-detection of this can not work with the tee muxer. The main example
is the @option{global_header} flag.
@c man end MUXERS

View File

@@ -1,138 +0,0 @@
\input texinfo @c -*- texinfo -*-
@settitle NUT
@titlepage
@center @titlefont{NUT}
@end titlepage
@top
@contents
@chapter Description
NUT is a low overhead generic container format. It stores audio, video,
subtitle and user-defined streams in a simple, yet efficient, way.
It was created by a group of FFmpeg and MPlayer developers in 2003
and was finalized in 2008.
The official nut specification is at svn://svn.mplayerhq.hu/nut
In case of any differences between this text and the official specification,
the official specification shall prevail.
@chapter Container-specific codec tags
@section Generic raw YUVA formats
Since many exotic planar YUVA pixel formats are not considered by
the AVI/QuickTime FourCC lists, the following scheme is adopted for
representing them.
The first two bytes can contain the values:
Y1 = only Y
Y2 = Y+A
Y3 = YUV
Y4 = YUVA
The third byte represents the width and height chroma subsampling
values for the UV planes, that is the amount to shift the luma
width/height right to find the chroma width/height.
The fourth byte is the number of bits used (8, 16, ...).
If the order of bytes is inverted, that means that each component has
to be read big-endian.
@section Raw Audio
@multitable @columnfractions .4 .4
@item ALAW @tab A-LAW
@item ULAW @tab MU-LAW
@item P<type><interleaving><bits> @tab little-endian PCM
@item <bits><interleaving><type>P @tab big-endian PCM
@end multitable
<type> is S for signed integer, U for unsigned integer, F for IEEE float
<interleaving> is D for default, P is for planar.
<bits> is 8/16/24/32
@example
PFD[32] would for example be signed 32 bit little-endian IEEE float
@end example
@section Subtitles
@multitable @columnfractions .4 .4
@item UTF8 @tab Raw UTF-8
@item SSA[0] @tab SubStation Alpha
@item DVDS @tab DVD subtitles
@item DVBS @tab DVB subtitles
@end multitable
@section Raw Data
@multitable @columnfractions .4 .4
@item UTF8 @tab Raw UTF-8
@end multitable
@section Codecs
@multitable @columnfractions .4 .4
@item 3IV1 @tab non-compliant MPEG-4 generated by old 3ivx
@item ASV1 @tab Asus Video
@item ASV2 @tab Asus Video 2
@item CVID @tab Cinepak
@item CYUV @tab Creative YUV
@item DIVX @tab non-compliant MPEG-4 generated by old DivX
@item DUCK @tab Truemotion 1
@item FFV1 @tab FFmpeg video 1
@item FFVH @tab FFmpeg Huffyuv
@item H261 @tab ITU H.261
@item H262 @tab ITU H.262
@item H263 @tab ITU H.263
@item H264 @tab ITU H.264
@item HFYU @tab Huffyuv
@item I263 @tab Intel H.263
@item IV31 @tab Indeo 3.1
@item IV32 @tab Indeo 3.2
@item IV50 @tab Indeo 5.0
@item LJPG @tab ITU JPEG (lossless)
@item MJLS @tab ITU JPEG-LS
@item MJPG @tab ITU JPEG
@item MPG4 @tab MS MPEG-4v1 (not ISO MPEG-4)
@item MP42 @tab MS MPEG-4v2
@item MP43 @tab MS MPEG-4v3
@item MP4V @tab ISO MPEG-4 Part 2 Video (from old encoders)
@item mpg1 @tab ISO MPEG-1 Video
@item mpg2 @tab ISO MPEG-2 Video
@item MRLE @tab MS RLE
@item MSVC @tab MS Video 1
@item RT21 @tab Indeo 2.1
@item RV10 @tab RealVideo 1.0
@item RV20 @tab RealVideo 2.0
@item RV30 @tab RealVideo 3.0
@item RV40 @tab RealVideo 4.0
@item SNOW @tab FFmpeg Snow
@item SVQ1 @tab Sorenson Video 1
@item SVQ3 @tab Sorenson Video 3
@item theo @tab Xiph Theora
@item TM20 @tab Truemotion 2.0
@item UMP4 @tab non-compliant MPEG-4 generated by UB Video MPEG-4
@item VCR1 @tab ATI VCR1
@item VP30 @tab VP 3.0
@item VP31 @tab VP 3.1
@item VP50 @tab VP 5.0
@item VP60 @tab VP 6.0
@item VP61 @tab VP 6.1
@item VP62 @tab VP 6.2
@item VP70 @tab VP 7.0
@item WMV1 @tab MS WMV7
@item WMV2 @tab MS WMV8
@item WMV3 @tab MS WMV9
@item WV1F @tab non-compliant MPEG-4 generated by ?
@item WVC1 @tab VC-1
@item XVID @tab non-compliant MPEG-4 generated by old Xvid
@item XVIX @tab non-compliant MPEG-4 generated by old Xvid with interlacing bug
@end multitable

View File

@@ -148,7 +148,7 @@ Alignment:
Some instructions on some architectures have strict alignment restrictions,
for example most SSE/SSE2 instructions on x86.
The minimum guaranteed alignment is written in the .h files, for example:
void (*put_pixels_clamped)(const int16_t *block/*align 16*/, UINT8 *pixels/*align 8*/, int line_size);
void (*put_pixels_clamped)(const DCTELEM *block/*align 16*/, UINT8 *pixels/*align 8*/, int line_size);
General Tips:
@@ -253,7 +253,7 @@ Optimization guide for ARM11 (used in Nokia N800 Internet Tablet):
http://infocenter.arm.com/help/topic/com.arm.doc.ddi0211j/DDI0211J_arm1136_r1p5_trm.pdf
Optimization guide for Intel XScale (used in Sharp Zaurus PDA):
http://download.intel.com/design/intelxscale/27347302.pdf
Intel Wireless MMX 2 Coprocessor: Programmers Reference Manual
Intel Wireless MMX2 Coprocessor: Programmers Reference Manual
http://download.intel.com/design/intelxscale/31451001.pdf
PowerPC-specific:

View File

@@ -1,7 +1,7 @@
@chapter Output Devices
@c man begin OUTPUT DEVICES
Output devices are configured elements in FFmpeg that can write
Output devices are configured elements in FFmpeg which allow to write
multimedia data to an output device attached to your system.
When you configure your FFmpeg build, all the supported output devices
@@ -26,7 +26,7 @@ ALSA (Advanced Linux Sound Architecture) output device.
CACA output device.
This output device allows to show a video stream in CACA window.
This output devices allows to show a video stream in CACA window.
Only one CACA window is allowed per application, so you can
have only one instance of this output device in an application.
@@ -104,79 +104,15 @@ ffmpeg -i INPUT -pix_fmt rgb24 -f caca -list_dither colors -
@end example
@end itemize
@section fbdev
Linux framebuffer output device.
The Linux framebuffer is a graphic hardware-independent abstraction
layer to show graphics on a computer monitor, typically on the
console. It is accessed through a file device node, usually
@file{/dev/fb0}.
For more detailed information read the file
@file{Documentation/fb/framebuffer.txt} included in the Linux source tree.
@subsection Options
@table @option
@item xoffset
@item yoffset
Set x/y coordinate of top left corner. Default is 0.
@end table
@subsection Examples
Play a file on framebuffer device @file{/dev/fb0}.
Required pixel format depends on current framebuffer settings.
@example
ffmpeg -re -i INPUT -vcodec rawvideo -pix_fmt bgra -f fbdev /dev/fb0
@end example
See also @url{http://linux-fbdev.sourceforge.net/}, and fbset(1).
@section oss
OSS (Open Sound System) output device.
@section pulse
PulseAudio output device.
To enable this output device you need to configure FFmpeg with @code{--enable-libpulse}.
More information about PulseAudio can be found on @url{http://www.pulseaudio.org}
@subsection Options
@table @option
@item server
Connect to a specific PulseAudio server, specified by an IP address.
Default server is used when not provided.
@item name
Specify the application name PulseAudio will use when showing active clients,
by default it is the @code{LIBAVFORMAT_IDENT} string.
@item stream_name
Specify the stream name PulseAudio will use when showing active streams,
by default it is set to the specified output name.
@item device
Specify the device to use. Default device is used when not provided.
List of output devices can be obtained with command @command{pactl list sinks}.
@end table
@subsection Examples
Play a file on default device on default server:
@example
ffmpeg -i INPUT -f pulse "stream name"
@end example
@section sdl
SDL (Simple DirectMedia Layer) output device.
This output device allows to show a video stream in an SDL
This output devices allows to show a video stream in an SDL
window. Only one SDL window is allowed per application, so you can
have only one instance of this output device in an application.
@@ -203,10 +139,6 @@ Set the SDL window size, can be a string of the form
@var{width}x@var{height} or a video size abbreviation.
If not specified it defaults to the size of the input video,
downscaled according to the aspect ratio.
@item window_fullscreen
Set fullscreen mode when non-zero value is provided.
Zero is a default.
@end table
@subsection Examples
@@ -221,69 +153,4 @@ ffmpeg -i INPUT -vcodec rawvideo -pix_fmt yuv420p -window_size qcif -f sdl "SDL
sndio audio output device.
@section xv
XV (XVideo) output device.
This output device allows to show a video stream in a X Window System
window.
@subsection Options
@table @option
@item display_name
Specify the hardware display name, which determines the display and
communications domain to be used.
The display name or DISPLAY environment variable can be a string in
the format @var{hostname}[:@var{number}[.@var{screen_number}]].
@var{hostname} specifies the name of the host machine on which the
display is physically attached. @var{number} specifies the number of
the display server on that host machine. @var{screen_number} specifies
the screen to be used on that server.
If unspecified, it defaults to the value of the DISPLAY environment
variable.
For example, @code{dual-headed:0.1} would specify screen 1 of display
0 on the machine named ``dual-headed''.
Check the X11 specification for more detailed information about the
display name format.
@item window_size
Set the created window size, can be a string of the form
@var{width}x@var{height} or a video size abbreviation. If not
specified it defaults to the size of the input video.
@item window_x
@item window_y
Set the X and Y window offsets for the created window. They are both
set to 0 by default. The values may be ignored by the window manager.
@item window_title
Set the window title, if not specified default to the filename
specified for the output device.
@end table
For more information about XVideo see @url{http://www.x.org/}.
@subsection Examples
@itemize
@item
Decode, display and encode video input with @command{ffmpeg} at the
same time:
@example
ffmpeg -i INPUT OUTPUT -f xv display
@end example
@item
Decode and display the input video to multiple X11 windows:
@example
ffmpeg -i INPUT -f xv normal -vf negate -f xv negated
@end example
@end itemize
@c man end OUTPUT DEVICES

View File

@@ -1,8 +1,8 @@
\input texinfo @c -*- texinfo -*-
@settitle Platform Specific Information
@settitle Platform Specific information
@titlepage
@center @titlefont{Platform Specific Information}
@center @titlefont{Platform Specific information}
@end titlepage
@top
@@ -77,15 +77,30 @@ For information about compiling FFmpeg on OS/2 see
@chapter Windows
To get help and instructions for building FFmpeg under Windows, check out
the FFmpeg Windows Help Forum at @url{http://ffmpeg.zeranoe.com/forum/}.
the FFmpeg Windows Help Forum at
@url{http://ffmpeg.arrozcru.org/}.
@section Native Windows compilation using MinGW or MinGW-w64
@section Native Windows compilation
FFmpeg can be built to run natively on Windows using the MinGW or MinGW-w64
toolchains. Install the latest versions of MSYS and MinGW or MinGW-w64 from
@url{http://www.mingw.org/} or @url{http://mingw-w64.sourceforge.net/}.
You can find detailed installation instructions in the download section and
the FAQ.
FFmpeg can be built to run natively on Windows using the MinGW tools. Install
the latest versions of MSYS and MinGW from @url{http://www.mingw.org/}.
You can find detailed installation instructions in the download
section and the FAQ.
FFmpeg does not build out-of-the-box with the packages the automated MinGW
installer provides. It also requires coreutils to be installed and many other
packages updated to the latest version. The minimum versions for some packages
are listed below:
@itemize
@item bash 3.1
@item msys-make 3.81-2 (note: not mingw32-make)
@item w32api 3.13
@item mingw-runtime 3.15
@end itemize
FFmpeg automatically passes @code{-fno-common} to the compiler to work around
a GCC bug (see @url{http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37216}).
Notes:
@@ -106,106 +121,149 @@ libavformat) as DLLs.
@end itemize
@section Microsoft Visual C++ or Intel C++ Compiler for Windows
@section Microsoft Visual C++ compatibility
FFmpeg can be built with MSVC or ICL using a C99-to-C89 conversion utility and
wrapper. For ICL, only the wrapper is used, since ICL supports C99.
As stated in the FAQ, FFmpeg will not compile under MSVC++. However, if you
want to use the libav* libraries in your own applications, you can still
compile those applications using MSVC++. But the libav* libraries you link
to @emph{must} be built with MinGW. However, you will not be able to debug
inside the libav* libraries, since MSVC++ does not recognize the debug
symbols generated by GCC.
We strongly recommend you to move over from MSVC++ to MinGW tools.
You will need the following prerequisites:
This description of how to use the FFmpeg libraries with MSVC++ is based on
Microsoft Visual C++ 2005 Express Edition. If you have a different version,
you might have to modify the procedures slightly.
@itemize
@item @uref{http://download.videolan.org/pub/contrib/c99-to-c89/, C99-to-C89 Converter & Wrapper}
@item @uref{http://code.google.com/p/msinttypes/, msinttypes}
@item @uref{http://www.mingw.org/, MSYS}
@item @uref{http://yasm.tortall.net/, YASM}
@item @uref{http://gnuwin32.sourceforge.net/packages/bc.htm, bc for Windows} if
you want to run @uref{fate.html, FATE}.
@end itemize
@subsection Using static libraries
To set up a proper environment in MSYS, you need to run @code{msys.bat} from
the Visual Studio or Intel Compiler command prompt.
Assuming you have just built and installed FFmpeg in @file{/usr/local}:
Place @code{makedef}, @code{c99wrap.exe}, @code{c99conv.exe}, and @code{yasm.exe}
somewhere in your @code{PATH}.
@enumerate
Next, make sure @code{inttypes.h} and any other headers and libs you want to use
are located in a spot that the compiler can see. Do so by modifying the @code{LIB}
and @code{INCLUDE} environment variables to include the @strong{Windows} paths to
these directories. Alternatively, you can try and use the
@code{--extra-cflags}/@code{--extra-ldflags} configure options.
@item Create a new console application ("File / New / Project") and then
select "Win32 Console Application". On the appropriate page of the
Application Wizard, uncheck the "Precompiled headers" option.
Finally, run:
@item Write the source code for your application, or, for testing, just
copy the code from an existing sample application into the source file
that MSVC++ has already created for you. For example, you can copy
@file{libavformat/output-example.c} from the FFmpeg distribution.
@item Open the "Project / Properties" dialog box. In the "Configuration"
combo box, select "All Configurations" so that the changes you make will
affect both debug and release builds. In the tree view on the left hand
side, select "C/C++ / General", then edit the "Additional Include
Directories" setting to contain the path where the FFmpeg includes were
installed (i.e. @file{c:\msys\1.0\local\include}).
Do not add MinGW's include directory here, or the include files will
conflict with MSVC's.
@item Still in the "Project / Properties" dialog box, select
"Linker / General" from the tree view and edit the
"Additional Library Directories" setting to contain the @file{lib}
directory where FFmpeg was installed (i.e. @file{c:\msys\1.0\local\lib}),
the directory where MinGW libs are installed (i.e. @file{c:\mingw\lib}),
and the directory where MinGW's GCC libs are installed
(i.e. @file{C:\mingw\lib\gcc\mingw32\4.2.1-sjlj}). Then select
"Linker / Input" from the tree view, and add the files @file{libavformat.a},
@file{libavcodec.a}, @file{libavutil.a}, @file{libmingwex.a},
@file{libgcc.a}, and any other libraries you used (i.e. @file{libz.a})
to the end of "Additional Dependencies".
@item Now, select "C/C++ / Code Generation" from the tree view. Select
"Debug" in the "Configuration" combo box. Make sure that "Runtime
Library" is set to "Multi-threaded Debug DLL". Then, select "Release" in
the "Configuration" combo box and make sure that "Runtime Library" is
set to "Multi-threaded DLL".
@item Click "OK" to close the "Project / Properties" dialog box.
@item MSVC++ lacks some C99 header files that are fundamental for FFmpeg.
Get msinttypes from @url{http://code.google.com/p/msinttypes/downloads/list}
and install it in MSVC++'s include directory
(i.e. @file{C:\Program Files\Microsoft Visual Studio 8\VC\include}).
@item MSVC++ also does not understand the @code{inline} keyword used by
FFmpeg, so you must add this line before @code{#include}ing libav*:
@example
#define inline _inline
@end example
@item Build your application, everything should work.
@end enumerate
@subsection Using shared libraries
This is how to create DLL and LIB files that are compatible with MSVC++:
@enumerate
@item Add a call to @file{vcvars32.bat} (which sets up the environment
variables for the Visual C++ tools) as the first line of @file{msys.bat}.
The standard location for @file{vcvars32.bat} is
@file{C:\Program Files\Microsoft Visual Studio 8\VC\bin\vcvars32.bat},
and the standard location for @file{msys.bat} is @file{C:\msys\1.0\msys.bat}.
If this corresponds to your setup, add the following line as the first line
of @file{msys.bat}:
@example
For MSVC:
./configure --toolchain=msvc
call "C:\Program Files\Microsoft Visual Studio 8\VC\bin\vcvars32.bat"
@end example
For ICL:
./configure --toolchain=icl
Alternatively, you may start the @file{Visual Studio 2005 Command Prompt},
and run @file{c:\msys\1.0\msys.bat} from there.
@item Within the MSYS shell, run @code{lib.exe}. If you get a help message
from @file{Microsoft (R) Library Manager}, this means your environment
variables are set up correctly, the @file{Microsoft (R) Library Manager}
is on the path and will be used by FFmpeg to create
MSVC++-compatible import libraries.
@item Build FFmpeg with
@example
./configure --enable-shared
make
make install
@end example
If you wish to compile shared libraries, add @code{--enable-shared} to your
configure options. Note that due to the way MSVC and ICL handle DLL imports and
exports, you cannot compile static and shared libraries at the same time, and
enabling shared libraries will automatically disable the static ones.
Your install path (@file{/usr/local/} by default) should now have the
necessary DLL and LIB files under the @file{bin} directory.
Notes:
@itemize
@item It is possible that coreutils' @code{link.exe} conflicts with MSVC's linker.
You can find out by running @code{which link} to see which @code{link.exe} you
are using. If it is located at @code{/bin/link.exe}, then you have the wrong one
in your @code{PATH}. Either move or remove that copy, or make sure MSVC's
@code{link.exe} takes precedence in your @code{PATH} over coreutils'.
@item If you wish to build with zlib support, you will have to grab a compatible
zlib binary from somewhere, with an MSVC import lib, or if you wish to link
statically, you can follow the instructions below to build a compatible
@code{zlib.lib} with MSVC. Regardless of which method you use, you must still
follow step 3, or compilation will fail.
@enumerate
@item Grab the @uref{http://zlib.net/, zlib sources}.
@item Edit @code{win32/Makefile.msc} so that it uses -MT instead of -MD, since
this is how FFmpeg is built as well.
@item Edit @code{zconf.h} and remove its inclusion of @code{unistd.h}. This gets
erroneously included when building FFmpeg.
@item Run @code{nmake -f win32/Makefile.msc}.
@item Move @code{zlib.lib}, @code{zconf.h}, and @code{zlib.h} to somewhere MSVC
can see.
@end enumerate
@item FFmpeg has been tested with the following on i686 and x86_64:
@itemize
@item Visual Studio 2010 Pro and Express
@item Visual Studio 2012 Pro and Express
@item Intel Composer XE 2013
@end itemize
Anything else is not officially supported.
Alternatively, build the libraries with a cross compiler, according to
the instructions below in @ref{Cross compilation for Windows with Linux}.
@end itemize
To use those files with MSVC++, do the same as you would do with
the static libraries, as described above. But in Step 4,
you should only need to add the directory where the LIB files are installed
(i.e. @file{c:\msys\usr\local\bin}). This is not a typo, the LIB files are
installed in the @file{bin} directory. And instead of adding the static
libraries (@file{libxxx.a} files) you should add the MSVC import libraries
(@file{avcodec.lib}, @file{avformat.lib}, and
@file{avutil.lib}). Note that you should not use the GCC import
libraries (@file{libxxx.dll.a} files), as these will give you undefined
reference errors. There should be no need for @file{libmingwex.a},
@file{libgcc.a}, and @file{wsock32.lib}, nor any other external library
statically linked into the DLLs.
@subsection Linking to FFmpeg with Microsoft Visual C++
If you plan to link with MSVC-built static libraries, you will need
to make sure you have @code{Runtime Library} set to
@code{Multi-threaded (/MT)} in your project's settings.
You will need to define @code{inline} to something MSVC understands:
FFmpeg headers do not declare global data for Windows DLLs through the usual
dllexport/dllimport interface. Such data will be exported properly while
building, but to use them in your MSVC++ code you will have to edit the
appropriate headers and mark the data as dllimport. For example, in
libavutil/pixdesc.h you should have:
@example
#define inline __inline
extern __declspec(dllimport) const AVPixFmtDescriptor av_pix_fmt_descriptors[];
@end example
Also note, that as stated in @strong{Microsoft Visual C++}, you will need
an MSVC-compatible @uref{http://code.google.com/p/msinttypes/, inttypes.h}.
If you plan on using import libraries created by dlltool, you must
set @code{References} to @code{No (/OPT:NOREF)} under the linker optimization
settings, otherwise the resulting binaries will fail during runtime.
This is not required when using import libraries generated by @code{lib.exe}.
Note that using import libraries created by dlltool requires
the linker optimization option to be set to
"References: Keep Unreferenced Data (@code{/OPT:NOREF})", otherwise
the resulting binaries will fail during runtime. This isn't
required when using import libraries generated by lib.exe.
This issue is reported upstream at
@url{http://sourceware.org/bugzilla/show_bug.cgi?id=12633}.
@@ -214,12 +272,12 @@ To create import libraries that work with the @code{/OPT:REF} option
@enumerate
@item Open the @emph{Visual Studio Command Prompt}.
@item Open @emph{Visual Studio 2005 Command Prompt}.
Alternatively, in a normal command line prompt, call @file{vcvars32.bat}
which sets up the environment variables for the Visual C++ tools
(the standard location for this file is something like
@file{C:\Program Files (x86_\Microsoft Visual Studio 10.0\VC\bin\vcvars32.bat}).
(the standard location for this file is
@file{C:\Program Files\Microsoft Visual Studio 8\VC\bin\vcvars32.bat}).
@item Enter the @file{bin} directory where the created LIB and DLL files
are stored.
@@ -304,67 +362,4 @@ and for a build with shared libraries
./configure --target-os=mingw32 --enable-shared --disable-static --extra-cflags=-mno-cygwin --extra-libs=-mno-cygwin
@end example
@chapter Plan 9
The native @uref{http://plan9.bell-labs.com/plan9/, Plan 9} compiler
does not implement all the C99 features needed by FFmpeg so the gcc
port must be used. Furthermore, a few items missing from the C
library and shell environment need to be fixed.
@itemize
@item GNU awk, grep, make, and sed
Working packages of these tools can be found at
@uref{http://code.google.com/p/ports2plan9/downloads/list, ports2plan9}.
They can be installed with @uref{http://9front.org/, 9front's} @code{pkg}
utility by setting @code{pkgpath} to
@code{http://ports2plan9.googlecode.com/files/}.
@item Missing/broken @code{head} and @code{printf} commands
Replacements adequate for building FFmpeg can be found in the
@code{compat/plan9} directory. Place these somewhere they will be
found by the shell. These are not full implementations of the
commands and are @emph{not} suitable for general use.
@item Missing C99 @code{stdint.h} and @code{inttypes.h}
Replacement headers are available from
@url{http://code.google.com/p/plan9front/issues/detail?id=152}.
@item Missing or non-standard library functions
Some functions in the C library are missing or incomplete. The
@code{@uref{http://ports2plan9.googlecode.com/files/gcc-apelibs-1207.tbz,
gcc-apelibs-1207}} package from
@uref{http://code.google.com/p/ports2plan9/downloads/list, ports2plan9}
includes an updated C library, but installing the full package gives
unusable executables. Instead, keep the files from @code{gccbin.tgz}
under @code{/386/lib/gnu}. From the @code{libc.a} archive in the
@code{gcc-apelibs-1207} package, extract the following object files and
turn them into a library:
@itemize
@item @code{strerror.o}
@item @code{strtoll.o}
@item @code{snprintf.o}
@item @code{vsnprintf.o}
@item @code{vfprintf.o}
@item @code{_IO_getc.o}
@item @code{_IO_putc.o}
@end itemize
Use the @code{--extra-libs} option of @code{configure} to inform the
build system of this library.
@item FPU exceptions enabled by default
Unlike most other systems, Plan 9 enables FPU exceptions by default.
These must be disabled before calling any FFmpeg functions. While the
included tools will do this automatically, other users of the
libraries must do it themselves.
@end itemize
@bye

View File

@@ -1,20 +1,20 @@
/*
* Copyright (c) 2012 Anton Khirnov
*
* This file is part of FFmpeg.
* This file is part of Libav.
*
* FFmpeg is free software; you can redistribute it and/or
* Libav 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,
* Libav 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
* License along with Libav; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
@@ -27,9 +27,7 @@
#include <float.h>
#include "libavformat/avformat.h"
#include "libavformat/options_table.h"
#include "libavcodec/avcodec.h"
#include "libavcodec/options_table.h"
#include "libavutil/opt.h"
static void print_usage(void)
@@ -41,9 +39,6 @@ static void print_usage(void)
static void print_option(const AVOption *opts, const AVOption *o, int per_stream)
{
if (!(o->flags & (AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM)))
return;
printf("@item -%s%s @var{", o->name, per_stream ? "[:stream_specifier]" : "");
switch (o->type) {
case AV_OPT_TYPE_BINARY: printf("hexadecimal string"); break;
@@ -98,14 +93,18 @@ static void show_opts(const AVOption *opts, int per_stream)
static void show_format_opts(void)
{
#include "libavformat/options_table.h"
printf("@section Format AVOptions\n");
show_opts(avformat_options, 0);
show_opts(options, 0);
}
static void show_codec_opts(void)
{
#include "libavcodec/options_table.h"
printf("@section Codec AVOptions\n");
show_opts(avcodec_options, 1);
show_opts(options, 1);
}
int main(int argc, char **argv)

View File

@@ -1,8 +1,8 @@
@chapter Protocols
@c man begin PROTOCOLS
Protocols are configured elements in FFmpeg that enable access to
resources that require specific protocols.
Protocols are configured elements in FFmpeg which allow to access
resources which require the use of a particular protocol.
When you configure your FFmpeg build, all the supported protocols are
enabled by default. You can list all available ones using the
@@ -49,16 +49,6 @@ Read angle 2 of playlist 4 from BluRay mounted to /mnt/bluray, start from chapte
-playlist 4 -angle 2 -chapter 2 bluray:/mnt/bluray
@end example
@section cache
Caching wrapper for input stream.
Cache the input stream to temporary file. It brings seeking capability to live streams.
@example
cache:@var{URL}
@end example
@section concat
Physical concatenation protocol.
@@ -85,34 +75,6 @@ ffplay concat:split1.mpeg\|split2.mpeg\|split3.mpeg
Note that you may need to escape the character "|" which is special for
many shells.
@section crypto
AES-encrypted stream reading protocol.
The accepted options are:
@table @option
@item key
Set the AES decryption key binary block from given hexadecimal representation.
@item iv
Set the AES decryption initialization vector binary block from given hexadecimal representation.
@end table
Accepted URL formats:
@example
crypto:@var{URL}
crypto+@var{URL}
@end example
@section data
Data in-line in the URI. See @url{http://en.wikipedia.org/wiki/Data_URI_scheme}.
For example, to convert a GIF file given inline with @command{ffmpeg}:
@example
ffmpeg -i "data:image/gif;base64,R0lGODdhCAAIAMIEAAAAAAAA//8AAP//AP///////////////ywAAAAACAAIAAADF0gEDLojDgdGiJdJqUX02iB4E8Q9jUMkADs=" smiley.png
@end example
@section file
File access protocol.
@@ -129,54 +91,6 @@ The ff* tools default to the file protocol, that is a resource
specified with the name "FILE.mpeg" is interpreted as the URL
"file:FILE.mpeg".
This protocol accepts the following options:
@table @option
@item truncate
Truncate existing files on write, if set to 1. A value of 0 prevents
truncating. Default value is 1.
@item blocksize
Set I/O operation maximum block size, in bytes. Default value is
@code{INT_MAX}, which results in not limiting the requested block size.
Setting this value reasonably low improves user termination request reaction
time, which is valuable for files on slow medium.
@end table
@section ftp
FTP (File Transfer Protocol).
Allow to read from or write to remote resources using FTP protocol.
Following syntax is required.
@example
ftp://[user[:password]@@]server[:port]/path/to/remote/resource.mpeg
@end example
This protocol accepts the following options.
@table @option
@item timeout
Set timeout of socket I/O operations used by the underlying low level
operation. By default it is set to -1, which means that the timeout is
not specified.
@item ftp-anonymous-password
Password used when login as anonymous user. Typically an e-mail address
should be used.
@item ftp-write-seekable
Control seekability of connection during encoding. If set to 1 the
resource is supposed to be seekable, if set to 0 it is assumed not
to be seekable. Default value is 0.
@end table
NOTE: Protocol can be used as output, but it is recommended to not do
it, unless special care is taken (tests, customized server configuration
etc.). Different FTP servers behave in different way during seek
operation. ff* tools may produce incomplete content due to server limitations.
@section gopher
Gopher protocol.
@@ -205,77 +119,6 @@ m3u8 files.
HTTP (Hyper Text Transfer Protocol).
This protocol accepts the following options.
@table @option
@item seekable
Control seekability of connection. If set to 1 the resource is
supposed to be seekable, if set to 0 it is assumed not to be seekable,
if set to -1 it will try to autodetect if it is seekable. Default
value is -1.
@item chunked_post
If set to 1 use chunked transfer-encoding for posts, default is 1.
@item headers
Set custom HTTP headers, can override built in default headers. The
value must be a string encoding the headers.
@item content_type
Force a content type.
@item user-agent
Override User-Agent header. If not specified the protocol will use a
string describing the libavformat build.
@item multiple_requests
Use persistent connections if set to 1. By default it is 0.
@item post_data
Set custom HTTP post data.
@item timeout
Set timeout of socket I/O operations used by the underlying low level
operation. By default it is set to -1, which means that the timeout is
not specified.
@item mime_type
Set MIME type.
@item icy
If set to 1 request ICY (SHOUTcast) metadata from the server. If the server
supports this, the metadata has to be retrieved by the application by reading
the @option{icy_metadata_headers} and @option{icy_metadata_packet} options.
The default is 0.
@item icy_metadata_headers
If the server supports ICY metadata, this contains the ICY specific HTTP reply
headers, separated with newline characters.
@item icy_metadata_packet
If the server supports ICY metadata, and @option{icy} was set to 1, this
contains the last non-empty metadata packet sent by the server.
@item cookies
Set the cookies to be sent in future requests. The format of each cookie is the
same as the value of a Set-Cookie HTTP response field. Multiple cookies can be
delimited by a newline character.
@end table
@subsection HTTP Cookies
Some HTTP requests will be denied unless cookie values are passed in with the
request. The @option{cookies} option allows these cookies to be specified. At
the very least, each cookie must specify a value along with a path and domain.
HTTP requests that match both the domain and path will automatically include the
cookie value in the HTTP Cookie header field. Multiple cookies can be delimited
by a newline.
The required syntax to play a stream specifying a cookie is:
@example
ffplay -cookies "nlqptid=nltid=tsn; path=/; domain=somedomain.com;" http://somedomain.com/somestream.m3u8
@end example
@section mmst
MMS (Microsoft Media Server) protocol over TCP.
@@ -339,16 +182,6 @@ ffmpeg -i test.wav -f avi pipe:1 | cat > test.avi
ffmpeg -i test.wav -f avi pipe: | cat > test.avi
@end example
This protocol accepts the following options:
@table @option
@item blocksize
Set I/O operation maximum block size, in bytes. Default value is
@code{INT_MAX}, which results in not limiting the requested block size.
Setting this value reasonably low improves user termination request reaction
time, which is valuable if data transmission is slow.
@end table
Note that some formats (typically MOV), require the output protocol to
be seekable, so they will fail with the pipe output protocol.
@@ -361,18 +194,12 @@ content across a TCP/IP network.
The required syntax is:
@example
rtmp://[@var{username}:@var{password}@@]@var{server}[:@var{port}][/@var{app}][/@var{instance}][/@var{playpath}]
rtmp://@var{server}[:@var{port}][/@var{app}][/@var{instance}][/@var{playpath}]
@end example
The accepted parameters are:
@table @option
@item username
An optional username (mostly for publishing).
@item password
An optional password (mostly for publishing).
@item server
The address of the RTMP server.
@@ -423,8 +250,7 @@ times to construct arbitrary AMF sequences.
@item rtmp_flashver
Version of the Flash plugin used to run the SWF player. The default
is LNX 9,0,124,2. (When publishing, the default is FMLE/3.0 (compatible;
<libavformat version>).)
is LNX 9,0,124,2.
@item rtmp_flush_interval
Number of packets flushed in the same request (RTMPT only). The default
@@ -474,12 +300,6 @@ For example to read with @command{ffplay} a multimedia resource named
ffplay rtmp://myserver/vod/sample
@end example
To publish to a password protected server, passing the playpath and
app names separately:
@example
ffmpeg -re -i <input> -f flv -rtmp_playpath some/long/path -rtmp_app long/app/name rtmp://username:password@@myserver/
@end example
@section rtmpe
Encrypted Real-Time Messaging Protocol.
@@ -520,39 +340,7 @@ The Real-Time Messaging Protocol tunneled through HTTPS (RTMPTS) is used
for streaming multimedia content within HTTPS requests to traverse
firewalls.
@section libssh
Secure File Transfer Protocol via libssh
Allow to read from or write to remote resources using SFTP protocol.
Following syntax is required.
@example
sftp://[user[:password]@@]server[:port]/path/to/remote/resource.mpeg
@end example
This protocol accepts the following options.
@table @option
@item timeout
Set timeout of socket I/O operations used by the underlying low level
operation. By default it is set to -1, which means that the timeout
is not specified.
@item truncate
Truncate existing files on write, if set to 1. A value of 0 prevents
truncating. Default value is 1.
@end table
Example: Play a file stored on remote server.
@example
ffplay sftp://user:password@@server_address:22/home/user/resource.mpeg
@end example
@section librtmp rtmp, rtmpe, rtmps, rtmpt, rtmpte
@section rtmp, rtmpe, rtmps, rtmpt, rtmpte
Real-Time Messaging Protocol and its variants supported through
librtmp.
@@ -594,70 +382,7 @@ ffplay "rtmp://myserver/live/mystream live=1"
@section rtp
Real-time Transport Protocol.
The required syntax for an RTP URL is:
rtp://@var{hostname}[:@var{port}][?@var{option}=@var{val}...]
@var{port} specifies the RTP port to use.
The following URL options are supported:
@table @option
@item ttl=@var{n}
Set the TTL (Time-To-Live) value (for multicast only).
@item rtcpport=@var{n}
Set the remote RTCP port to @var{n}.
@item localrtpport=@var{n}
Set the local RTP port to @var{n}.
@item localrtcpport=@var{n}'
Set the local RTCP port to @var{n}.
@item pkt_size=@var{n}
Set max packet size (in bytes) to @var{n}.
@item connect=0|1
Do a @code{connect()} on the UDP socket (if set to 1) or not (if set
to 0).
@item sources=@var{ip}[,@var{ip}]
List allowed source IP addresses.
@item block=@var{ip}[,@var{ip}]
List disallowed (blocked) source IP addresses.
@item write_to_source=0|1
Send packets to the source address of the latest received packet (if
set to 1) or to a default remote address (if set to 0).
@item localport=@var{n}
Set the local RTP port to @var{n}.
This is a deprecated option. Instead, @option{localrtpport} should be
used.
@end table
Important notes:
@enumerate
@item
If @option{rtcpport} is not set the RTCP port will be set to the RTP
port value plus 1.
@item
If @option{localrtpport} (the local RTP port) is not set any available
port will be used for the local RTP and RTCP ports.
@item
If @option{localrtcpport} (the local RTCP port) is not set it will be
set to the the local RTP port value plus 1.
@end enumerate
Real-Time Protocol.
@section rtsp
@@ -747,11 +472,6 @@ To receive a stream in realtime:
ffmpeg -rtsp_flags listen -i rtsp://ownaddress/live.sdp @var{output}
@end example
@table @option
@item stimeout
Socket IO timeout in micro seconds.
@end table
@section sap
Session Announcement Protocol (RFC 2974). This is not technically a
@@ -844,50 +564,6 @@ To play back the first stream announced on one the default IPv6 SAP multicast ad
ffplay sap://[ff0e::2:7ffe]
@end example
@section sctp
Stream Control Transmission Protocol.
The accepted URL syntax is:
@example
sctp://@var{host}:@var{port}[?@var{options}]
@end example
The protocol accepts the following options:
@table @option
@item listen
If set to any value, listen for an incoming connection. Outgoing connection is done by default.
@item max_streams
Set the maximum number of streams. By default no limit is set.
@end table
@section srtp
Secure Real-time Transport Protocol.
The accepted options are:
@table @option
@item srtp_in_suite
@item srtp_out_suite
Select input and output encoding suites.
Supported values:
@table @samp
@item AES_CM_128_HMAC_SHA1_80
@item SRTP_AES128_CM_HMAC_SHA1_80
@item AES_CM_128_HMAC_SHA1_32
@item SRTP_AES128_CM_HMAC_SHA1_32
@end table
@item srtp_in_params
@item srtp_out_params
Set input and output encoding parameters, which are expressed by a
base64-encoded representation of a binary block. The first 16 bytes of
this binary block are used as master key, the following 14 bytes are
used as master salt.
@end table
@section tcp
Trasmission Control Protocol.
@@ -916,48 +592,29 @@ ffplay tcp://@var{hostname}:@var{port}
@section tls
Transport Layer Security (TLS) / Secure Sockets Layer (SSL)
Transport Layer Security/Secure Sockets Layer
The required syntax for a TLS/SSL url is:
@example
tls://@var{hostname}:@var{port}[?@var{options}]
@end example
The following parameters can be set via command line options
(or in code via @code{AVOption}s):
@table @option
@item ca_file, cafile=@var{filename}
A file containing certificate authority (CA) root certificates to treat
as trusted. If the linked TLS library contains a default this might not
need to be specified for verification to work, but not all libraries and
setups have defaults built in.
The file must be in OpenSSL PEM format.
@item listen
Act as a server, listening for an incoming connection.
@item tls_verify=@var{1|0}
If enabled, try to verify the peer that we are communicating with.
Note, if using OpenSSL, this currently only makes sure that the
peer certificate is signed by one of the root certificates in the CA
database, but it does not validate that the certificate actually
matches the host name we are trying to connect to. (With GnuTLS,
the host name is validated as well.)
@item cafile=@var{filename}
Certificate authority file. The file must be in OpenSSL PEM format.
This is disabled by default since it requires a CA database to be
provided by the caller in many cases.
@item cert=@var{filename}
Certificate file. The file must be in OpenSSL PEM format.
@item cert_file, cert=@var{filename}
A file containing a certificate to use in the handshake with the peer.
(When operating as server, in listen mode, this is more often required
by the peer, while client certificates only are mandated in certain
setups.)
@item key=@var{filename}
Private key file.
@item key_file, key=@var{filename}
A file containing the private key for the certificate.
@item listen=@var{1|0}
If enabled, listen for connections on the provided port, and assume
the server role in the handshake instead of the client role.
@item verify=@var{0|1}
Verify the peer's certificate.
@end table
@@ -1064,24 +721,4 @@ To receive over UDP from a remote endpoint:
ffmpeg -i udp://[@var{multicast-address}]:@var{port}
@end example
@section unix
Unix local socket
The required syntax for a Unix socket URL is:
@example
unix://@var{filepath}
@end example
The following parameters can be set via command line options
(or in code via @code{AVOption}s):
@table @option
@item timeout
Timeout in ms.
@item listen
Create the Unix socket in listening mode.
@end table
@c man end PROTOCOLS

View File

@@ -23,7 +23,7 @@ Let's consider the problem of minimizing:
rate is the filesize
distortion is the quality
lambda is a fixed value chosen as a tradeoff between quality and filesize
lambda is a fixed value choosen as a tradeoff between quality and filesize
Is this equivalent to finding the best quality for a given max
filesize? The answer is yes. For each filesize limit there is some lambda
factor for which minimizing above will get you the best quality (using your

View File

@@ -1,232 +0,0 @@
@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
@item ocl, out_channel_layout
Set the input/output channel layout.
See @ref{channel layout syntax,,the Channel Layout section in the ffmpeg-utils(1) manual,ffmpeg-utils}
for the required syntax.
@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 rematrix_maxval
Set maximum output value for rematrixing.
This can be used to prevent clipping vs. preventing volumn reduction
A value of 1.0 prevents cliping.
@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.
@item output_sample_bits
For swr only, set number of used output sample bits for dithering. Must be an integer in the
interval [0,64], default value is 0, which means it's not used.
@end table
@c man end RESAMPLER OPTIONS

View File

@@ -1,119 +0,0 @@
@anchor{scaler_options}
@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
@anchor{sws_flags}
@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 bicublin
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.
@item sws_dither
Set the dithering algorithm. Accepts one of the following
values. Default value is @samp{auto}.
@table @samp
@item auto
automatic choice
@item none
no dithering
@item bayer
bayer dither
@item ed
error diffusion dither
@end table
@end table
@c man end SCALER OPTIONS

View File

@@ -50,10 +50,8 @@ header:
temporal_decomposition_count u header_state
spatial_decomposition_count u header_state
colorspace_type u header_state
if (nb_planes > 2) {
chroma_h_shift u header_state
chroma_v_shift u header_state
}
chroma_h_shift u header_state
chroma_v_shift u header_state
spatial_scalability b header_state
max_ref_frames-1 u header_state
qlogs
@@ -61,7 +59,7 @@ header:
if(!keyframe){
update_mc b header_state
if(update_mc){
for(plane=0; plane<nb_plane_types; plane++){
for(plane=0; plane<2; plane++){
diag_mc b header_state
htaps/2-1 u header_state
for(i= p->htaps/2; i; i--)
@@ -82,7 +80,7 @@ header:
block_max_depth s header_state
qlogs:
for(plane=0; plane<nb_plane_types; plane++){
for(plane=0; plane<2; plane++){
quant_table[plane][0][0] s header_state
for(level=0; level < spatial_decomposition_count; level++){
quant_table[plane][level][1]s header_state
@@ -133,10 +131,8 @@ block(level):
residual:
residual2(luma)
if (nb_planes > 2) {
residual2(chroma_cr)
residual2(chroma_cb)
}
residual2(chroma_cr)
residual2(chroma_cb)
residual2:
for(level=0; level<spatial_decomposition_count; level++){
@@ -150,7 +146,7 @@ residual2:
subband:
FIXME
nb_plane_types = gray ? 1 : 2;
Tag description:
----------------
@@ -172,11 +168,7 @@ spatial_decomposition_count
FIXME
colorspace_type
0 unspecified YcbCr
1 Gray
2 Gray + Alpha
3 GBR
4 GBRA
0
this MUST NOT change within a bitstream
chroma_h_shift

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