1027 lines
28 KiB
C
1027 lines
28 KiB
C
#ifndef AVCODEC_H
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#define AVCODEC_H
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#include "common.h"
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#define LIBAVCODEC_VERSION_INT 0x000406
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#define LIBAVCODEC_VERSION "0.4.6"
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#define LIBAVCODEC_BUILD 4637
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#define LIBAVCODEC_BUILD_STR "4637"
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enum CodecID {
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CODEC_ID_NONE,
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CODEC_ID_MPEG1VIDEO,
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CODEC_ID_H263,
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CODEC_ID_RV10,
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CODEC_ID_MP2,
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CODEC_ID_MP3LAME,
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CODEC_ID_VORBIS,
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CODEC_ID_AC3,
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CODEC_ID_MJPEG,
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CODEC_ID_MPEG4,
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CODEC_ID_RAWVIDEO,
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CODEC_ID_MSMPEG4V1,
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CODEC_ID_MSMPEG4V2,
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CODEC_ID_MSMPEG4V3,
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CODEC_ID_WMV1,
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CODEC_ID_WMV2,
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CODEC_ID_H263P,
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CODEC_ID_H263I,
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CODEC_ID_SVQ1,
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CODEC_ID_DVVIDEO,
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CODEC_ID_DVAUDIO,
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CODEC_ID_WMAV1,
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CODEC_ID_WMAV2,
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CODEC_ID_MACE3,
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CODEC_ID_MACE6,
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/* various pcm "codecs" */
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CODEC_ID_PCM_S16LE,
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CODEC_ID_PCM_S16BE,
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CODEC_ID_PCM_U16LE,
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CODEC_ID_PCM_U16BE,
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CODEC_ID_PCM_S8,
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CODEC_ID_PCM_U8,
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CODEC_ID_PCM_MULAW,
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CODEC_ID_PCM_ALAW,
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/* various adpcm codecs */
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CODEC_ID_ADPCM_IMA_QT,
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CODEC_ID_ADPCM_IMA_WAV,
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CODEC_ID_ADPCM_MS,
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};
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enum CodecType {
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CODEC_TYPE_UNKNOWN = -1,
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CODEC_TYPE_VIDEO,
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CODEC_TYPE_AUDIO,
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};
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enum PixelFormat {
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PIX_FMT_ANY = -1,
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PIX_FMT_YUV420P,
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PIX_FMT_YUV422,
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PIX_FMT_RGB24,
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PIX_FMT_BGR24,
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PIX_FMT_YUV422P,
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PIX_FMT_YUV444P,
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PIX_FMT_RGBA32,
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PIX_FMT_BGRA32,
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PIX_FMT_YUV410P,
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PIX_FMT_YUV411P
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};
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/* currently unused, may be used if 24/32 bits samples ever supported */
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enum SampleFormat {
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SAMPLE_FMT_S16 = 0, /* signed 16 bits */
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};
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/* in bytes */
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#define AVCODEC_MAX_AUDIO_FRAME_SIZE 131072
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/**
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* Required number of zero bytes at the end of the input bitstream for decoding.
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* to avoid overreading (and possibly segfaulting)
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*/
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#define FF_INPUT_BUFFER_PADDING_SIZE 8
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/* motion estimation type, EPZS by default */
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enum Motion_Est_ID {
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ME_ZERO = 1,
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ME_FULL,
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ME_LOG,
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ME_PHODS,
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ME_EPZS,
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ME_X1
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};
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typedef struct RcOverride{
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int start_frame;
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int end_frame;
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int qscale; // if this is 0 then quality_factor will be used instead
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float quality_factor;
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} RcOverride;
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/* only for ME compatiblity with old apps */
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extern int motion_estimation_method;
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/* ME algos sorted by quality */
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static const int Motion_Est_QTab[] = { ME_ZERO, ME_PHODS, ME_LOG,
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ME_X1, ME_EPZS, ME_FULL };
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#define FF_MAX_B_FRAMES 4
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/* encoding support
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these flags can be passed in AVCodecContext.flags before initing
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Note: note not everything is supported yet
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*/
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#define CODEC_FLAG_HQ 0x0001 /* brute force MB-type decission mode (slow) */
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#define CODEC_FLAG_QSCALE 0x0002 /* use fixed qscale */
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#define CODEC_FLAG_4MV 0x0004 /* 4 MV per MB allowed */
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#define CODEC_FLAG_QPEL 0x0010 /* use qpel MC */
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#define CODEC_FLAG_GMC 0x0020 /* use GMC */
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#define CODEC_FLAG_PART 0x0080 /* use data partitioning */
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/* parent program gurantees that the input for b-frame containing streams is not written to
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for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
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#define CODEC_FLAG_INPUT_PRESERVED 0x0100
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#define CODEC_FLAG_PASS1 0x0200 /* use internal 2pass ratecontrol in first pass mode */
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#define CODEC_FLAG_PASS2 0x0400 /* use internal 2pass ratecontrol in second pass mode */
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#define CODEC_FLAG_EXTERN_HUFF 0x1000 /* use external huffman table (for mjpeg) */
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#define CODEC_FLAG_GRAY 0x2000 /* only decode/encode grayscale */
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#define CODEC_FLAG_EMU_EDGE 0x4000/* dont draw edges */
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#define CODEC_FLAG_DR1 0x8000 /* direct renderig type 1 (store internal frames in external buffers) */
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#define CODEC_FLAG_TRUNCATED 0x00010000 /* input bitstream might be truncated at a random location instead
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of only at frame boundaries */
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#define CODEC_FLAG_NORMALIZE_AQP 0x00020000 /* normalize adaptive quantization */
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#define CODEC_FLAG_INTERLACED_DCT 0x00040000 /* use interlaced dct */
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#define CODEC_FLAG_LOW_DELAY 0x00080000 /* force low delay / will fail on b frames */
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/* codec capabilities */
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#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 /* decoder can use draw_horiz_band callback */
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#define CODEC_CAP_DR1 0x0002 /* direct rendering method 1 */
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/* if 'parse_only' field is true, then avcodec_parse_frame() can be
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used */
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#define CODEC_CAP_PARSE_ONLY 0x0004
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#define CODEC_CAP_TRUNCATED 0x0008
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#define FRAME_RATE_BASE 10000
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typedef struct AVCodecContext {
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/**
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* the average bitrate
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* encoding: set by user. unused for constant quantizer encoding
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* decoding: set by lavc. 0 or some bitrate if this info is available in the stream
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*/
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int bit_rate;
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/**
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* number of bits the bitstream is allowed to diverge from the reference
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* the reference can be CBR (for CBR pass1) or VBR (for pass2)
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* encoding: set by user. unused for constant quantizer encoding
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* decoding: unused
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*/
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int bit_rate_tolerance;
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/**
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* CODEC_FLAG_*
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* encoding: set by user.
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* decoding: set by user.
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*/
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int flags;
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/**
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* some codecs needs additionnal format info. It is stored here
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* encoding: set by user.
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* decoding: set by lavc. (FIXME is this ok?)
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*/
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int sub_id;
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/**
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* motion estimation algorithm used for video coding
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* encoding: set by user.
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* decoding: unused
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*/
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int me_method;
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/**
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* some codecs need / can use extra-data like huffman tables
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* mjpeg: huffman tables
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* rv10: additional flags
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* mpeg4: global headers (they can be in the bitstream or here)
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* encoding: set/allocated/freed by lavc.
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* decoding: set/allocated/freed by user.
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*/
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void *extradata;
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int extradata_size;
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/* video only */
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/**
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* frames per sec multiplied by FRAME_RATE_BASE
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* for variable fps this is the precission, so if the timestamps
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* can be specified in msec precssion then this is 1000*FRAME_RATE_BASE
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* encoding: set by user
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* decoding: set by lavc. 0 or the frame_rate if available
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*/
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int frame_rate;
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/**
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* encoding: set by user.
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* decoding: set by user, some codecs might override / change it during playback
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*/
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int width, height;
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/**
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* encoding: set by user. 0 if not known
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* decoding: set by lavc. 0 if not known
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*/
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int aspect_ratio_info;
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#define FF_ASPECT_SQUARE 1
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#define FF_ASPECT_4_3_625 2
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#define FF_ASPECT_4_3_525 3
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#define FF_ASPECT_16_9_625 4
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#define FF_ASPECT_16_9_525 5
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#define FF_ASPECT_EXTENDED 15
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/**
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* the number of pictures in a group of pitures, or 0 for intra_only
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* encoding: set by user.
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* decoding: unused
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*/
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int gop_size;
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/**
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* pixel format, see PIX_FMT_xxx
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* encoding: unused
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* decoding: set by lavc.
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*/
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enum PixelFormat pix_fmt;
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int repeat_pict; /* when decoding, this signal how much the picture */
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/* must be delayed. */
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/* extra_delay = (repeat_pict / 2) * (1/fps) */
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/**
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* if non NULL, 'draw_horiz_band' is called by the libavcodec
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* decoder to draw an horizontal band. It improve cache usage. Not
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* all codecs can do that. You must check the codec capabilities
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* before
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* encoding: unused
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* decoding: set by user.
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*/
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void (*draw_horiz_band)(struct AVCodecContext *s,
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UINT8 **src_ptr, int linesize,
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int y, int width, int height);
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/* audio only */
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int sample_rate; /* samples per sec */
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int channels;
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int sample_fmt; /* sample format, currenly unused */
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/* the following data should not be initialized */
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int frame_size; /* in samples, initialized when calling 'init' */
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int frame_number; /* audio or video frame number */
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int real_pict_num; /* returns the real picture number of
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previous encoded frame */
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/**
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* 1 -> keyframe, 0-> not
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* encoding: set by lavc (for the outputed bitstream, not the input frame)
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* decoding: set by lavc (for the decoded bitstream, not the displayed frame)
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*/
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int key_frame;
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/**
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* picture type of the previous en/decoded frame, see ?_TYPE below
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* encoding: set by lavc (for the outputed bitstream, not the input frame)
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* decoding: set by lavc (for the decoded bitstream, not the displayed frame)
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*/
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int pict_type;
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/* FIXME: these should have FF_ */
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#define I_TYPE 1 // Intra
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#define P_TYPE 2 // Predicted
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#define B_TYPE 3 // Bi-dir predicted
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#define S_TYPE 4 // S(GMC)-VOP MPEG4
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/**
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* number of frames the decoded output will be delayed relative to
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* the encoded input
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* encoding: set by lavc.
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* decoding: unused
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*/
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int delay;
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/**
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* mbskip_table[mb]=1 if MB didnt change, is only valid for I/P frames
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* stride= mb_width = (width+15)>>4 (FIXME export stride?)
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* encoding: unused
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* decoding: set by lavc
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*/
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uint8_t *mbskip_table;
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/* encoding parameters */
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/**
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* quality (between 1 (good) and 31 (bad))
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* encoding: set by user if CODEC_FLAG_QSCALE is set otherwise set by lavc
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* decoding: set by lavc
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*/
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int quality; /* quality of the previous encoded frame
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this is allso used to set the quality in vbr mode
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and the per frame quality in CODEC_FLAG_TYPE (second pass mode) */
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float qcompress; /* amount of qscale change between easy & hard scenes (0.0-1.0)*/
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float qblur; /* amount of qscale smoothing over time (0.0-1.0) */
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/**
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* minimum quantizer
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* encoding: set by user.
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* decoding: unused
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*/
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int qmin;
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/**
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* maximum quantizer
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* encoding: set by user.
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* decoding: unused
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*/
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int qmax;
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/**
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* maximum quantizer difference etween frames
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* encoding: set by user.
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* decoding: unused
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*/
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int max_qdiff;
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/**
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* maximum number of b frames between non b frames
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* note: the output will be delayed by max_b_frames+1 relative to the input
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* encoding: set by user.
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* decoding: unused
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*/
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int max_b_frames;
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/**
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* qscale factor between ip and b frames
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* encoding: set by user.
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* decoding: unused
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*/
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float b_quant_factor;
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/** obsolete FIXME remove */
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int rc_strategy;
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int b_frame_strategy;
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/**
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* encoding: unused
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* decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
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*/
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int hurry_up;
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struct AVCodec *codec;
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void *priv_data;
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/* The following data is for RTP friendly coding */
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/* By now only H.263/H.263+/MPEG4 coder honours this */
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int rtp_mode; /* 1 for activate RTP friendly-mode */
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/* highers numbers represent more error-prone */
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/* enviroments, by now just "1" exist */
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int rtp_payload_size; /* The size of the RTP payload, the coder will */
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/* do it's best to deliver a chunk with size */
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/* below rtp_payload_size, the chunk will start */
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/* with a start code on some codecs like H.263 */
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/* This doesn't take account of any particular */
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/* headers inside the transmited RTP payload */
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/* The RTP callcack: This function is called */
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/* every time the encoder as a packet to send */
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/* Depends on the encoder if the data starts */
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/* with a Start Code (it should) H.263 does */
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void (*rtp_callback)(void *data, int size, int packet_number);
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/**
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* if you set get_psnr to 1 then after encoding you will have the
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* PSNR on psnr_y/cb/cr
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* encoding: set by user (1-> on, 0-> off)
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* decoding: unused
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*/
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int get_psnr;
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float psnr_y;
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float psnr_cb;
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float psnr_cr;
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/* statistics, used for 2-pass encoding */
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int mv_bits;
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int header_bits;
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int i_tex_bits;
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int p_tex_bits;
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int i_count;
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int p_count;
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int skip_count;
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int misc_bits;
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/**
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* number of bits used for the previously encoded frame
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* encoding: set by lavc
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* decoding: unused
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*/
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int frame_bits;
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/**
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* private data of the user, can be used to carry app specific stuff
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* encoding: set by user
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* decoding: set by user
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*/
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void *opaque;
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char codec_name[32];
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enum CodecType codec_type; /* see CODEC_TYPE_xxx */
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enum CodecID codec_id; /* see CODEC_ID_xxx */
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unsigned int codec_tag; /* codec tag, only used if unknown codec */
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/**
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* workaround bugs in encoders which sometimes cannot be detected automatically
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* encoding: unused
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* decoding: set by user
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*/
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int workaround_bugs;
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#define FF_BUG_AUTODETECT 1 //autodetection
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#define FF_BUG_OLD_MSMPEG4 2
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#define FF_BUG_XVID_ILACE 4
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#define FF_BUG_UMP4 8
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#define FF_BUG_NO_PADDING 16
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#define FF_BUG_AC_VLC 32
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#define FF_BUG_QPEL_CHROMA 64
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//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
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/**
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* encoding: set by user
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* decoding: unused
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*/
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int luma_elim_threshold;
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/**
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* encoding: set by user
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* decoding: unused
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*/
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int chroma_elim_threshold;
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/**
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* strictly follow the std (MPEG4, ...)
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* encoding: set by user
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* decoding: unused
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*/
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int strict_std_compliance;
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/**
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* qscale offset between ip and b frames
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* if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
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* if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
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* encoding: set by user.
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* decoding: unused
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*/
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float b_quant_offset;
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/**
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* error resilience {-1,0,1} higher values will detect more errors but may missdetect
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* some more or less valid parts as errors
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* encoding: unused
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* decoding: set by user
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*/
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int error_resilience;
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/**
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* obsolete, just here to keep ABI compatible (should be removed perhaps, dunno)
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*/
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int *quant_store;
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/**
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* QP store stride
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* encoding: unused
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* decoding: set by lavc
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*/
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int qstride;
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/**
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* buffer, where the next picture should be decoded into
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* encoding: unused
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* decoding: set by user in get_buffer_callback to a buffer into which the next part
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* of the bitstream will be decoded, and set by lavc at end of frame to the
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* next frame which needs to be displayed
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*/
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uint8_t *dr_buffer[3];
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/**
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* stride of the luminance part of the dr buffer
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* encoding: unused
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* decoding: set by user
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*/
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int dr_stride;
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/**
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* same behavior as dr_buffer, just for some private data of the user
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* encoding: unused
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* decoding: set by user in get_buffer_callback, and set by lavc at end of frame
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*/
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void *dr_opaque_frame;
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/**
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* called at the beginning of each frame to get a buffer for it
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* encoding: unused
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* decoding: set by user
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*/
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int (*get_buffer_callback)(struct AVCodecContext *c, int width, int height, int pict_type);
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/**
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* is 1 if the decoded stream contains b frames, 0 otherwise
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* encoding: unused
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* decoding: set by lavc
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*/
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int has_b_frames;
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/**
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* stride of the chrominance part of the dr buffer
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* encoding: unused
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* decoding: set by user
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*/
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int dr_uvstride;
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/**
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* number of dr buffers
|
|
* encoding: unused
|
|
* decoding: set by user
|
|
*/
|
|
int dr_ip_buffer_count;
|
|
|
|
int block_align; /* used by some WAV based audio codecs */
|
|
|
|
int parse_only; /* decoding only: if true, only parsing is done
|
|
(function avcodec_parse_frame()). The frame
|
|
data is returned. Only MPEG codecs support this now. */
|
|
|
|
/**
|
|
* 0-> h263 quant 1-> mpeg quant
|
|
* encoding: set by user.
|
|
* decoding: unused
|
|
*/
|
|
int mpeg_quant;
|
|
|
|
/**
|
|
* pass1 encoding statistics output buffer
|
|
* encoding: set by lavc
|
|
* decoding: unused
|
|
*/
|
|
char *stats_out; /* encoding statistics output buffer */
|
|
|
|
/**
|
|
* pass2 encoding statistics input buffer.
|
|
* concatenated stuff from stats_out of pass1 should be placed here
|
|
* encoding: allocated/set/freed by user
|
|
* decoding: unused
|
|
*/
|
|
char *stats_in;
|
|
|
|
/**
|
|
* ratecontrol qmin qmax limiting method
|
|
* 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
|
|
* encoding: set by user.
|
|
* decoding: unused
|
|
*/
|
|
float rc_qsquish;
|
|
|
|
float rc_qmod_amp;
|
|
int rc_qmod_freq;
|
|
|
|
/**
|
|
* ratecontrol override, see RcOverride
|
|
* encoding: allocated/set/freed by user.
|
|
* decoding: unused
|
|
*/
|
|
RcOverride *rc_override;
|
|
int rc_override_count;
|
|
|
|
/**
|
|
* rate control equation
|
|
* encoding: set by user
|
|
* decoding: unused
|
|
*/
|
|
char *rc_eq;
|
|
|
|
/**
|
|
* maximum bitrate
|
|
* encoding: set by user.
|
|
* decoding: unused
|
|
*/
|
|
int rc_max_rate;
|
|
|
|
/**
|
|
* minimum bitrate
|
|
* encoding: set by user.
|
|
* decoding: unused
|
|
*/
|
|
int rc_min_rate;
|
|
|
|
/**
|
|
* decoder bitstream buffer size
|
|
* encoding: set by user.
|
|
* decoding: unused
|
|
*/
|
|
int rc_buffer_size;
|
|
float rc_buffer_aggressivity;
|
|
|
|
/**
|
|
* qscale factor between p and i frames
|
|
* encoding: set by user.
|
|
* decoding: unused
|
|
*/
|
|
float i_quant_factor;
|
|
|
|
/**
|
|
* qscale offset between p and i frames
|
|
* if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
|
|
* if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
|
|
* encoding: set by user.
|
|
* decoding: unused
|
|
*/
|
|
float i_quant_offset;
|
|
|
|
/**
|
|
* initial complexity for pass1 ratecontrol
|
|
* encoding: set by user.
|
|
* decoding: unused
|
|
*/
|
|
float rc_initial_cplx;
|
|
|
|
/**
|
|
* custom aspect ratio, used if aspect_info==FF_ASPECT_EXTENDED
|
|
* encoding: set by user.
|
|
* decoding: set by lavc.
|
|
*/
|
|
int aspected_width;
|
|
int aspected_height;
|
|
|
|
/**
|
|
* dct algorithm, see FF_DCT_* below
|
|
* encoding: set by user
|
|
* decoding: unused
|
|
*/
|
|
int dct_algo;
|
|
#define FF_DCT_AUTO 0
|
|
#define FF_DCT_FASTINT 1
|
|
#define FF_DCT_INT 2
|
|
#define FF_DCT_MMX 3
|
|
#define FF_DCT_MLIB 4
|
|
#define FF_DCT_ALTIVEC 5
|
|
|
|
/**
|
|
* presentation timestamp in micro seconds (time when frame should be shown to user)
|
|
* if 0 then the frame_rate will be used as reference
|
|
* encoding: set by user
|
|
* decoding; set by lavc
|
|
*/
|
|
long long int pts;
|
|
|
|
/**
|
|
* luminance masking (0-> disabled)
|
|
* encoding: set by user
|
|
* decoding: unused
|
|
*/
|
|
float lumi_masking;
|
|
|
|
/**
|
|
* temporary complexity masking (0-> disabled)
|
|
* encoding: set by user
|
|
* decoding: unused
|
|
*/
|
|
float temporal_cplx_masking;
|
|
|
|
/**
|
|
* spatial complexity masking (0-> disabled)
|
|
* encoding: set by user
|
|
* decoding: unused
|
|
*/
|
|
float spatial_cplx_masking;
|
|
|
|
/**
|
|
* p block masking (0-> disabled)
|
|
* encoding: set by user
|
|
* decoding: unused
|
|
*/
|
|
float p_masking;
|
|
|
|
/**
|
|
* darkness masking (0-> disabled)
|
|
* encoding: set by user
|
|
* decoding: unused
|
|
*/
|
|
float dark_masking;
|
|
|
|
/**
|
|
* fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A')
|
|
* this is used to workaround some encoder bugs
|
|
* encoding: unused
|
|
* decoding: set by user, will be converted to upper case by lavc during init
|
|
*/
|
|
int fourcc;
|
|
|
|
/**
|
|
* idct algorithm, see FF_IDCT_* below
|
|
* encoding: set by user
|
|
* decoding: set by user
|
|
*/
|
|
int idct_algo;
|
|
#define FF_IDCT_AUTO 0
|
|
#define FF_IDCT_INT 1
|
|
#define FF_IDCT_SIMPLE 2
|
|
#define FF_IDCT_SIMPLEMMX 3
|
|
#define FF_IDCT_LIBMPEG2MMX 4
|
|
#define FF_IDCT_PS2 5
|
|
#define FF_IDCT_MLIB 6
|
|
#define FF_IDCT_ARM 7
|
|
#define FF_IDCT_ALTIVEC 8
|
|
|
|
/**
|
|
* slice count
|
|
* encoding: set by lavc
|
|
* decoding: set by user (or 0)
|
|
*/
|
|
int slice_count;
|
|
/**
|
|
* slice offsets in the frame in bytes
|
|
* encoding: set/allocated by lavc
|
|
* decoding: set/allocated by user (or NULL)
|
|
*/
|
|
int *slice_offset;
|
|
|
|
/**
|
|
* error concealment flags
|
|
* encoding: unused
|
|
* decoding: set by user
|
|
*/
|
|
int error_concealment;
|
|
#define FF_EC_GUESS_MVS 1
|
|
#define FF_EC_DEBLOCK 2
|
|
|
|
/**
|
|
* QP table of the currently decoded frame
|
|
* encoding; unused
|
|
* decoding: set by lavc
|
|
*/
|
|
int8_t *current_qscale_table;
|
|
/**
|
|
* QP table of the currently displayed frame
|
|
* encoding; unused
|
|
* decoding: set by lavc
|
|
*/
|
|
int8_t *display_qscale_table;
|
|
|
|
/**
|
|
* force specific pict_type.
|
|
* encoding; set by user (I/P/B_TYPE)
|
|
* decoding: unused
|
|
*/
|
|
int force_type;
|
|
} AVCodecContext;
|
|
|
|
typedef struct AVCodec {
|
|
char *name;
|
|
int type;
|
|
int id;
|
|
int priv_data_size;
|
|
int (*init)(AVCodecContext *);
|
|
int (*encode)(AVCodecContext *, UINT8 *buf, int buf_size, void *data);
|
|
int (*close)(AVCodecContext *);
|
|
int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
|
|
UINT8 *buf, int buf_size);
|
|
int capabilities;
|
|
struct AVCodec *next;
|
|
} AVCodec;
|
|
|
|
/**
|
|
* four components are given, that's all.
|
|
* the last component is alpha
|
|
*/
|
|
typedef struct AVPicture {
|
|
UINT8 *data[4];
|
|
int linesize[4];
|
|
} AVPicture;
|
|
|
|
extern AVCodec ac3_encoder;
|
|
extern AVCodec mp2_encoder;
|
|
extern AVCodec mp3lame_encoder;
|
|
extern AVCodec oggvorbis_encoder;
|
|
extern AVCodec mpeg1video_encoder;
|
|
extern AVCodec h263_encoder;
|
|
extern AVCodec h263p_encoder;
|
|
extern AVCodec rv10_encoder;
|
|
extern AVCodec mjpeg_encoder;
|
|
extern AVCodec mpeg4_encoder;
|
|
extern AVCodec msmpeg4v1_encoder;
|
|
extern AVCodec msmpeg4v2_encoder;
|
|
extern AVCodec msmpeg4v3_encoder;
|
|
extern AVCodec wmv1_encoder;
|
|
extern AVCodec wmv2_encoder;
|
|
|
|
extern AVCodec h263_decoder;
|
|
extern AVCodec mpeg4_decoder;
|
|
extern AVCodec msmpeg4v1_decoder;
|
|
extern AVCodec msmpeg4v2_decoder;
|
|
extern AVCodec msmpeg4v3_decoder;
|
|
extern AVCodec wmv1_decoder;
|
|
extern AVCodec wmv2_decoder;
|
|
extern AVCodec mpeg_decoder;
|
|
extern AVCodec h263i_decoder;
|
|
extern AVCodec rv10_decoder;
|
|
extern AVCodec svq1_decoder;
|
|
extern AVCodec dvvideo_decoder;
|
|
extern AVCodec dvaudio_decoder;
|
|
extern AVCodec wmav1_decoder;
|
|
extern AVCodec wmav2_decoder;
|
|
extern AVCodec mjpeg_decoder;
|
|
extern AVCodec mp2_decoder;
|
|
extern AVCodec mp3_decoder;
|
|
extern AVCodec mace3_decoder;
|
|
extern AVCodec mace6_decoder;
|
|
|
|
/* pcm codecs */
|
|
#define PCM_CODEC(id, name) \
|
|
extern AVCodec name ## _decoder; \
|
|
extern AVCodec name ## _encoder
|
|
|
|
PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
|
|
PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
|
|
PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
|
|
PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
|
|
PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
|
|
PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
|
|
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
|
|
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
|
|
|
|
/* adpcm codecs */
|
|
|
|
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
|
|
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
|
|
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
|
|
|
|
#undef PCM_CODEC
|
|
|
|
/* dummy raw video codec */
|
|
extern AVCodec rawvideo_codec;
|
|
|
|
/* the following codecs use external GPL libs */
|
|
extern AVCodec ac3_decoder;
|
|
|
|
/* resample.c */
|
|
|
|
struct ReSampleContext;
|
|
|
|
typedef struct ReSampleContext ReSampleContext;
|
|
|
|
ReSampleContext *audio_resample_init(int output_channels, int input_channels,
|
|
int output_rate, int input_rate);
|
|
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
|
|
void audio_resample_close(ReSampleContext *s);
|
|
|
|
/* YUV420 format is assumed ! */
|
|
|
|
struct ImgReSampleContext;
|
|
|
|
typedef struct ImgReSampleContext ImgReSampleContext;
|
|
|
|
ImgReSampleContext *img_resample_init(int output_width, int output_height,
|
|
int input_width, int input_height);
|
|
|
|
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
|
|
int iwidth, int iheight,
|
|
int topBand, int bottomBand,
|
|
int leftBand, int rightBand);
|
|
|
|
void img_resample(ImgReSampleContext *s,
|
|
AVPicture *output, AVPicture *input);
|
|
|
|
void img_resample_close(ImgReSampleContext *s);
|
|
|
|
void avpicture_fill(AVPicture *picture, UINT8 *ptr,
|
|
int pix_fmt, int width, int height);
|
|
int avpicture_get_size(int pix_fmt, int width, int height);
|
|
|
|
/* convert among pixel formats */
|
|
int img_convert(AVPicture *dst, int dst_pix_fmt,
|
|
AVPicture *src, int pix_fmt,
|
|
int width, int height);
|
|
|
|
/* deinterlace a picture */
|
|
int avpicture_deinterlace(AVPicture *dst, AVPicture *src,
|
|
int pix_fmt, int width, int height);
|
|
|
|
/* external high level API */
|
|
|
|
extern AVCodec *first_avcodec;
|
|
|
|
/* returns LIBAVCODEC_VERSION_INT constant */
|
|
unsigned avcodec_version(void);
|
|
/* returns LIBAVCODEC_BUILD constant */
|
|
unsigned avcodec_build(void);
|
|
void avcodec_init(void);
|
|
|
|
void avcodec_set_bit_exact(void);
|
|
|
|
void register_avcodec(AVCodec *format);
|
|
AVCodec *avcodec_find_encoder(enum CodecID id);
|
|
AVCodec *avcodec_find_encoder_by_name(const char *name);
|
|
AVCodec *avcodec_find_decoder(enum CodecID id);
|
|
AVCodec *avcodec_find_decoder_by_name(const char *name);
|
|
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
|
|
|
|
AVCodecContext *avcodec_alloc_context(void);
|
|
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
|
|
int avcodec_decode_audio(AVCodecContext *avctx, INT16 *samples,
|
|
int *frame_size_ptr,
|
|
UINT8 *buf, int buf_size);
|
|
int avcodec_decode_video(AVCodecContext *avctx, AVPicture *picture,
|
|
int *got_picture_ptr,
|
|
UINT8 *buf, int buf_size);
|
|
int avcodec_parse_frame(AVCodecContext *avctx, UINT8 **pdata,
|
|
int *data_size_ptr,
|
|
UINT8 *buf, int buf_size);
|
|
int avcodec_encode_audio(AVCodecContext *avctx, UINT8 *buf, int buf_size,
|
|
const short *samples);
|
|
int avcodec_encode_video(AVCodecContext *avctx, UINT8 *buf, int buf_size,
|
|
const AVPicture *pict);
|
|
|
|
int avcodec_close(AVCodecContext *avctx);
|
|
|
|
void avcodec_register_all(void);
|
|
|
|
void avcodec_flush_buffers(AVCodecContext *avctx);
|
|
|
|
/**
|
|
* Interface for 0.5.0 version
|
|
*
|
|
* do not even think about it's usage for this moment
|
|
*/
|
|
|
|
typedef struct {
|
|
// compressed size used from given memory buffer
|
|
int size;
|
|
/// I/P/B frame type
|
|
int frame_type;
|
|
} avc_enc_result_t;
|
|
|
|
/**
|
|
* Commands
|
|
* order can't be changed - once it was defined
|
|
*/
|
|
typedef enum {
|
|
// general commands
|
|
AVC_OPEN_BY_NAME = 0xACA000,
|
|
AVC_OPEN_BY_CODEC_ID,
|
|
AVC_OPEN_BY_FOURCC,
|
|
AVC_CLOSE,
|
|
|
|
AVC_FLUSH,
|
|
// pin - struct { uint8_t* src, uint_t src_size }
|
|
// pout - struct { AVPicture* img, consumed_bytes,
|
|
AVC_DECODE,
|
|
// pin - struct { AVPicture* img, uint8_t* dest, uint_t dest_size }
|
|
// pout - uint_t used_from_dest_size
|
|
AVC_ENCODE,
|
|
|
|
// query/get video commands
|
|
AVC_GET_VERSION = 0xACB000,
|
|
AVC_GET_WIDTH,
|
|
AVC_GET_HEIGHT,
|
|
AVC_GET_DELAY,
|
|
AVC_GET_QUANT_TABLE,
|
|
// ...
|
|
|
|
// query/get audio commands
|
|
AVC_GET_FRAME_SIZE = 0xABC000,
|
|
|
|
// maybe define some simple structure which
|
|
// might be passed to the user - but they can't
|
|
// contain any codec specific parts and these
|
|
// calls are usualy necessary only few times
|
|
|
|
// set video commands
|
|
AVC_SET_WIDTH = 0xACD000,
|
|
AVC_SET_HEIGHT,
|
|
|
|
// set video encoding commands
|
|
AVC_SET_FRAME_RATE = 0xACD800,
|
|
AVC_SET_QUALITY,
|
|
AVC_SET_HURRY_UP,
|
|
|
|
// set audio commands
|
|
AVC_SET_SAMPLE_RATE = 0xACE000,
|
|
AVC_SET_CHANNELS,
|
|
|
|
} avc_cmd_t;
|
|
|
|
/**
|
|
* \param handle allocated private structure by libavcodec
|
|
* for initialization pass NULL - will be returned pout
|
|
* user is supposed to know nothing about its structure
|
|
* \param cmd type of operation to be performed
|
|
* \param pint input parameter
|
|
* \param pout output parameter
|
|
*
|
|
* \returns command status - eventually for query command it might return
|
|
* integer resulting value
|
|
*/
|
|
int avcodec(void* handle, avc_cmd_t cmd, void* pin, void* pout);
|
|
|
|
/* memory */
|
|
void *av_malloc(int size);
|
|
void *av_mallocz(int size);
|
|
void av_free(void *ptr);
|
|
void __av_freep(void **ptr);
|
|
#define av_freep(p) __av_freep((void **)(p))
|
|
|
|
#endif /* AVCODEC_H */
|