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#ifndef AVCODEC_H
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#define AVCODEC_H
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/**
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 * @file avcodec.h
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 * external api header.
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 */
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "common.h"
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#include "rational.h"
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#include <sys/types.h> /* size_t */
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#define FFMPEG_VERSION_INT     0x000409
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#define FFMPEG_VERSION         "0.4.9-pre1"
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#define LIBAVCODEC_BUILD       4757
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#define LIBAVCODEC_VERSION_INT FFMPEG_VERSION_INT
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#define LIBAVCODEC_VERSION     FFMPEG_VERSION
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#define AV_STRINGIFY(s)        AV_TOSTRING(s)
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#define AV_TOSTRING(s) #s
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#define LIBAVCODEC_IDENT        "FFmpeg" LIBAVCODEC_VERSION "b" AV_STRINGIFY(LIBAVCODEC_BUILD)
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#define AV_NOPTS_VALUE int64_t_C(0x8000000000000000)
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#define AV_TIME_BASE 1000000
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#define AV_TIME_BASE_Q (AVRational){1, AV_TIME_BASE}
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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_MPEG2VIDEO, /* prefered ID for MPEG Video 1 or 2 decoding */
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    CODEC_ID_MPEG2VIDEO_XVMC,
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    CODEC_ID_H261,
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    CODEC_ID_H263,
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    CODEC_ID_RV10,
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    CODEC_ID_RV20,
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    CODEC_ID_MJPEG,
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    CODEC_ID_MJPEGB,
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    CODEC_ID_LJPEG,
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    CODEC_ID_SP5X,
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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_FLV1,
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    CODEC_ID_SVQ1,
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    CODEC_ID_SVQ3,
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    CODEC_ID_DVVIDEO,
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    CODEC_ID_HUFFYUV,
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    CODEC_ID_CYUV,
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    CODEC_ID_H264,
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    CODEC_ID_INDEO3,
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    CODEC_ID_VP3,
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    CODEC_ID_THEORA,
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    CODEC_ID_ASV1,
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    CODEC_ID_ASV2,
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    CODEC_ID_FFV1,
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    CODEC_ID_4XM,
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    CODEC_ID_VCR1,
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    CODEC_ID_CLJR,
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    CODEC_ID_MDEC,
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    CODEC_ID_ROQ,
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    CODEC_ID_INTERPLAY_VIDEO,
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    CODEC_ID_XAN_WC3,
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    CODEC_ID_XAN_WC4,
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    CODEC_ID_RPZA,
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    CODEC_ID_CINEPAK,
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    CODEC_ID_WS_VQA,
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    CODEC_ID_MSRLE,
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    CODEC_ID_MSVIDEO1,
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    CODEC_ID_IDCIN,
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    CODEC_ID_8BPS,
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    CODEC_ID_SMC,
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    CODEC_ID_FLIC,
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    CODEC_ID_TRUEMOTION1,
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    CODEC_ID_VMDVIDEO,
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    CODEC_ID_MSZH,
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    CODEC_ID_ZLIB,
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    CODEC_ID_QTRLE,
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    CODEC_ID_SNOW,
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    CODEC_ID_TSCC,
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    CODEC_ID_ULTI,
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    CODEC_ID_QDRAW,
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    CODEC_ID_VIXL,
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    CODEC_ID_QPEG,
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    CODEC_ID_XVID,
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    CODEC_ID_PNG,
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    CODEC_ID_PPM,
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    CODEC_ID_PBM,
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    CODEC_ID_PGM,
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    CODEC_ID_PGMYUV,
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    CODEC_ID_PAM,
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    CODEC_ID_FFVHUFF,
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    CODEC_ID_RV30,
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    CODEC_ID_RV40,
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    CODEC_ID_VC9,
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    CODEC_ID_WMV3,
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    CODEC_ID_LOCO,
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    CODEC_ID_WNV1,
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    CODEC_ID_AASC,
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    CODEC_ID_INDEO2,
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    CODEC_ID_FRAPS,
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    /* various pcm "codecs" */
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    CODEC_ID_PCM_S16LE= 0x10000,
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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= 0x11000,
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    CODEC_ID_ADPCM_IMA_WAV,
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    CODEC_ID_ADPCM_IMA_DK3,
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    CODEC_ID_ADPCM_IMA_DK4,
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    CODEC_ID_ADPCM_IMA_WS,
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    CODEC_ID_ADPCM_IMA_SMJPEG,
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    CODEC_ID_ADPCM_MS,
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    CODEC_ID_ADPCM_4XM,
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    CODEC_ID_ADPCM_XA,
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    CODEC_ID_ADPCM_ADX,
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    CODEC_ID_ADPCM_EA,
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    CODEC_ID_ADPCM_G726,
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    CODEC_ID_ADPCM_CT,
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    CODEC_ID_ADPCM_SWF,
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    /* AMR */
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    CODEC_ID_AMR_NB= 0x12000,
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    CODEC_ID_AMR_WB,
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    /* RealAudio codecs*/
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    CODEC_ID_RA_144= 0x13000,
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    CODEC_ID_RA_288,
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    /* various DPCM codecs */
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    CODEC_ID_ROQ_DPCM= 0x14000,
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    CODEC_ID_INTERPLAY_DPCM,
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    CODEC_ID_XAN_DPCM,
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    CODEC_ID_SOL_DPCM,
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    CODEC_ID_MP2= 0x15000,
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    CODEC_ID_MP3, /* prefered ID for MPEG Audio layer 1, 2 or3 decoding */
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    CODEC_ID_AAC,
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    CODEC_ID_MPEG4AAC,
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    CODEC_ID_AC3,
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    CODEC_ID_DTS,
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    CODEC_ID_VORBIS,
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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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    CODEC_ID_VMDAUDIO,
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    CODEC_ID_SONIC,
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    CODEC_ID_SONIC_LS,
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    CODEC_ID_FLAC,
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    CODEC_ID_MP3ADU,
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    CODEC_ID_MP3ON4,
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    CODEC_ID_SHORTEN,
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    CODEC_ID_ALAC,
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    CODEC_ID_WESTWOOD_SND1,
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    CODEC_ID_GSM,    
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    CODEC_ID_OGGTHEORA= 0x16000, 
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    /* subtitle codecs */
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    CODEC_ID_DVD_SUBTITLE= 0x17000, 
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    CODEC_ID_DVB_SUBTITLE, 
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    CODEC_ID_MPEG2TS= 0x20000, /* _FAKE_ codec to indicate a raw MPEG2 transport
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                         stream (only used by libavformat) */
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};
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/* CODEC_ID_MP3LAME is absolete */
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#define CODEC_ID_MP3LAME CODEC_ID_MP3
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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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    CODEC_TYPE_DATA,
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    CODEC_TYPE_SUBTITLE,
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};
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/**
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 * Pixel format. Notes: 
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 *
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 * PIX_FMT_RGBA32 is handled in an endian-specific manner. A RGBA
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 * color is put together as:
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 *  (A << 24) | (R << 16) | (G << 8) | B
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 * This is stored as BGRA on little endian CPU architectures and ARGB on
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 * big endian CPUs.
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 *
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 * When the pixel format is palettized RGB (PIX_FMT_PAL8), the palettized
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 * image data is stored in AVFrame.data[0]. The palette is transported in
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 * AVFrame.data[1] and, is 1024 bytes long (256 4-byte entries) and is
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 * formatted the same as in PIX_FMT_RGBA32 described above (i.e., it is
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 * also endian-specific). Note also that the individual RGB palette
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 * components stored in AVFrame.data[1] should be in the range 0..255.
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 * This is important as many custom PAL8 video codecs that were designed
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 * to run on the IBM VGA graphics adapter use 6-bit palette components.
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 */
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enum PixelFormat {
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    PIX_FMT_NONE= -1,
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    PIX_FMT_YUV420P,   ///< Planar YUV 4:2:0 (1 Cr & Cb sample per 2x2 Y samples)
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    PIX_FMT_YUV422,    ///< Packed pixel, Y0 Cb Y1 Cr 
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    PIX_FMT_RGB24,     ///< Packed pixel, 3 bytes per pixel, RGBRGB...
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    PIX_FMT_BGR24,     ///< Packed pixel, 3 bytes per pixel, BGRBGR...
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    PIX_FMT_YUV422P,   ///< Planar YUV 4:2:2 (1 Cr & Cb sample per 2x1 Y samples)
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    PIX_FMT_YUV444P,   ///< Planar YUV 4:4:4 (1 Cr & Cb sample per 1x1 Y samples)
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    PIX_FMT_RGBA32,    ///< Packed pixel, 4 bytes per pixel, BGRABGRA..., stored in cpu endianness
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    PIX_FMT_YUV410P,   ///< Planar YUV 4:1:0 (1 Cr & Cb sample per 4x4 Y samples)
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    PIX_FMT_YUV411P,   ///< Planar YUV 4:1:1 (1 Cr & Cb sample per 4x1 Y samples)
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    PIX_FMT_RGB565,    ///< always stored in cpu endianness 
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    PIX_FMT_RGB555,    ///< always stored in cpu endianness, most significant bit to 1 
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    PIX_FMT_GRAY8,
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    PIX_FMT_MONOWHITE, ///< 0 is white 
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    PIX_FMT_MONOBLACK, ///< 0 is black 
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    PIX_FMT_PAL8,      ///< 8 bit with RGBA palette 
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    PIX_FMT_YUVJ420P,  ///< Planar YUV 4:2:0 full scale (jpeg)
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    PIX_FMT_YUVJ422P,  ///< Planar YUV 4:2:2 full scale (jpeg)
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    PIX_FMT_YUVJ444P,  ///< Planar YUV 4:4:4 full scale (jpeg)
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    PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing(xvmc_render.h)
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    PIX_FMT_XVMC_MPEG2_IDCT,
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    PIX_FMT_UYVY422,   ///< Packed pixel, Cb Y0 Cr Y1 
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    PIX_FMT_UYVY411,   ///< Packed pixel, Cb Y0 Y1 Cr Y2 Y3
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    PIX_FMT_NB,
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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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    SAMPLE_FMT_S32,             ///< signed 32 bits 
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    SAMPLE_FMT_FLT,             ///< float
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    SAMPLE_FMT_DBL,             ///< double
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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 additionally allocated bytes at the end of the input bitstream for decoding.
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 * this is mainly needed because some optimized bitstream readers read 
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 * 32 or 64 bit at once and could read over the end<br>
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 * Note, if the first 23 bits of the additional bytes are not 0 then damaged
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 * MPEG bitstreams could cause overread and segfault
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 */
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#define FF_INPUT_BUFFER_PADDING_SIZE 8
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/**
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 * minimum encoding buffer size.
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 * used to avoid some checks during header writing
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 */
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#define FF_MIN_BUFFER_SIZE 16384
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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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enum AVRounding {
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    AV_ROUND_ZERO     = 0, ///< round toward zero
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    AV_ROUND_INF      = 1, ///< round away from zero
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    AV_ROUND_DOWN     = 2, ///< round toward -infinity
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    AV_ROUND_UP       = 3, ///< round toward +infinity
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    AV_ROUND_NEAR_INF = 5, ///< round to nearest and halfway cases away from zero
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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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#define FF_MAX_B_FRAMES 8
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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: not everything is supported yet.
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*/
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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 / Advanced prediction for H263
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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_MV0    0x0040  ///< always try a MB with MV=<0,0> 
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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///< don't draw edges
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#define CODEC_FLAG_PSNR           0x8000 ///< error[?] variables will be set during encoding 
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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
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#define CODEC_FLAG_ALT_SCAN       0x00100000 ///< use alternate scan 
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#define CODEC_FLAG_TRELLIS_QUANT  0x00200000 ///< use trellis quantization 
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#define CODEC_FLAG_GLOBAL_HEADER  0x00400000 ///< place global headers in extradata instead of every keyframe 
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#define CODEC_FLAG_BITEXACT       0x00800000 ///< use only bitexact stuff (except (i)dct) 
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/* Fx : Flag for h263+ extra options */
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#define CODEC_FLAG_H263P_AIC      0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction (remove this)
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#define CODEC_FLAG_AC_PRED        0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction
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#define CODEC_FLAG_H263P_UMV      0x02000000 ///< Unlimited motion vector  
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#define CODEC_FLAG_CBP_RD         0x04000000 ///< use rate distortion optimization for cbp
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#define CODEC_FLAG_QP_RD          0x08000000 ///< use rate distortion optimization for qp selectioon
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#define CODEC_FLAG_H263P_AIV      0x00000008 ///< H263 Alternative inter vlc
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#define CODEC_FLAG_OBMC           0x00000001 ///< OBMC
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#define CODEC_FLAG_LOOP_FILTER    0x00000800 ///< loop filter
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#define CODEC_FLAG_H263P_SLICE_STRUCT 0x10000000
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#define CODEC_FLAG_INTERLACED_ME  0x20000000 ///< interlaced motion estimation
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#define CODEC_FLAG_SVCD_SCAN_OFFSET 0x40000000 ///< will reserve space for SVCD scan offset user data
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#define CODEC_FLAG_CLOSED_GOP     0x80000000
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#define CODEC_FLAG2_FAST          0x00000001 ///< allow non spec compliant speedup tricks
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#define CODEC_FLAG2_STRICT_GOP    0x00000002 ///< strictly enforce GOP size
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#define CODEC_FLAG2_NO_OUTPUT     0x00000004 ///< skip bitstream encoding
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#define CODEC_FLAG2_LOCAL_HEADER  0x00000008 ///< place global headers at every keyframe instead of in extradata
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/* Unsupported options :
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 *                 Syntax Arithmetic coding (SAC)
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 *                 Reference Picture Selection
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 *                 Independant Segment Decoding */
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/* /Fx */
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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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/**
355
 * Codec uses get_buffer() for allocating buffers.
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 * direct rendering method 1
357
 */
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#define CODEC_CAP_DR1             0x0002
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/* if 'parse_only' field is true, then avcodec_parse_frame() can be
360
   used */
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#define CODEC_CAP_PARSE_ONLY      0x0004
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#define CODEC_CAP_TRUNCATED       0x0008
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/* codec can export data for HW decoding (XvMC) */
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#define CODEC_CAP_HWACCEL         0x0010
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/** 
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 * codec has a non zero delay and needs to be feeded with NULL at the end to get the delayed data.
367
 * if this is not set, the codec is guranteed to never be feeded with NULL data
368
 */
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#define CODEC_CAP_DELAY           0x0020
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//the following defines may change, don't expect compatibility if you use them
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#define MB_TYPE_INTRA4x4   0x0001
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#define MB_TYPE_INTRA16x16 0x0002 //FIXME h264 specific
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#define MB_TYPE_INTRA_PCM  0x0004 //FIXME h264 specific
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#define MB_TYPE_16x16      0x0008
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#define MB_TYPE_16x8       0x0010
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#define MB_TYPE_8x16       0x0020
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#define MB_TYPE_8x8        0x0040
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#define MB_TYPE_INTERLACED 0x0080
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#define MB_TYPE_DIRECT2     0x0100 //FIXME
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#define MB_TYPE_ACPRED     0x0200
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#define MB_TYPE_GMC        0x0400
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#define MB_TYPE_SKIP       0x0800
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#define MB_TYPE_P0L0       0x1000
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#define MB_TYPE_P1L0       0x2000
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#define MB_TYPE_P0L1       0x4000
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#define MB_TYPE_P1L1       0x8000
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#define MB_TYPE_L0         (MB_TYPE_P0L0 | MB_TYPE_P1L0)
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#define MB_TYPE_L1         (MB_TYPE_P0L1 | MB_TYPE_P1L1)
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#define MB_TYPE_L0L1       (MB_TYPE_L0   | MB_TYPE_L1)
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#define MB_TYPE_QUANT      0x00010000
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#define MB_TYPE_CBP        0x00020000
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//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...)
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/**
396
 * Pan Scan area.
397
 * this specifies the area which should be displayed. Note there may be multiple such areas for one frame
398
 */
399
typedef struct AVPanScan{
400
    /**
401
     * id.
402
     * - encoding: set by user.
403
     * - decoding: set by lavc
404
     */
405
    int id;
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407
    /**
408
     * width and height in 1/16 pel
409
     * - encoding: set by user.
410
     * - decoding: set by lavc
411
     */
412
    int width;
413
    int height;
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415
    /**
416
     * position of the top left corner in 1/16 pel for up to 3 fields/frames.
417
     * - encoding: set by user.
418
     * - decoding: set by lavc
419
     */
420
    int16_t position[3][2];
421
}AVPanScan;
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423
#define FF_COMMON_FRAME \
424
    /**\
425
     * pointer to the picture planes.\
426
     * this might be different from the first allocated byte\
427
     * - encoding: \
428
     * - decoding: \
429
     */\
430
    uint8_t *data[4];\
431
    int linesize[4];\
432
    /**\
433
     * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
434
     * this isn't used by lavc unless the default get/release_buffer() is used\
435
     * - encoding: \
436
     * - decoding: \
437
     */\
438
    uint8_t *base[4];\
439
    /**\
440
     * 1 -> keyframe, 0-> not\
441
     * - encoding: set by lavc\
442
     * - decoding: set by lavc\
443
     */\
444
    int key_frame;\
445
\
446
    /**\
447
     * picture type of the frame, see ?_TYPE below.\
448
     * - encoding: set by lavc for coded_picture (and set by user for input)\
449
     * - decoding: set by lavc\
450
     */\
451
    int pict_type;\
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\
453
    /**\
454
     * presentation timestamp in time_base units (time when frame should be shown to user)\
455
     * if AV_NOPTS_VALUE then frame_rate = 1/time_base will be assumed\
456
     * - encoding: MUST be set by user\
457
     * - decoding: set by lavc\
458
     */\
459
    int64_t pts;\
460
\
461
    /**\
462
     * picture number in bitstream order.\
463
     * - encoding: set by\
464
     * - decoding: set by lavc\
465
     */\
466
    int coded_picture_number;\
467
    /**\
468
     * picture number in display order.\
469
     * - encoding: set by\
470
     * - decoding: set by lavc\
471
     */\
472
    int display_picture_number;\
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\
474
    /**\
475
     * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
476
     * - encoding: set by lavc for coded_picture (and set by user for input)\
477
     * - decoding: set by lavc\
478
     */\
479
    int quality; \
480
\
481
    /**\
482
     * buffer age (1->was last buffer and dint change, 2->..., ...).\
483
     * set to INT_MAX if the buffer has not been used yet \
484
     * - encoding: unused\
485
     * - decoding: MUST be set by get_buffer()\
486
     */\
487
    int age;\
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\
489
    /**\
490
     * is this picture used as reference\
491
     * - encoding: unused\
492
     * - decoding: set by lavc (before get_buffer() call))\
493
     */\
494
    int reference;\
495
\
496
    /**\
497
     * QP table\
498
     * - encoding: unused\
499
     * - decoding: set by lavc\
500
     */\
501
    int8_t *qscale_table;\
502
    /**\
503
     * QP store stride\
504
     * - encoding: unused\
505
     * - decoding: set by lavc\
506
     */\
507
    int qstride;\
508
\
509
    /**\
510
     * mbskip_table[mb]>=1 if MB didnt change\
511
     * stride= mb_width = (width+15)>>4\
512
     * - encoding: unused\
513
     * - decoding: set by lavc\
514
     */\
515
    uint8_t *mbskip_table;\
516
\
517
    /**\
518
     * Motion vector table.\
519
     * @code\
520
     * example:\
521
     * int mv_sample_log2= 4 - motion_subsample_log2;\
522
     * int mb_width= (width+15)>>4;\
523
     * int mv_stride= (mb_width << mv_sample_log2) + 1;\
524
     * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y];\
525
     * @endcode\
526
     * - encoding: set by user\
527
     * - decoding: set by lavc\
528
     */\
529
    int16_t (*motion_val[2])[2];\
530
\
531
    /**\
532
     * Macroblock type table\
533
     * mb_type_base + mb_width + 2\
534
     * - encoding: set by user\
535
     * - decoding: set by lavc\
536
     */\
537
    uint32_t *mb_type;\
538
\
539
    /**\
540
     * log2 of the size of the block which a single vector in motion_val represents: \
541
     * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2)\
542
     * - encoding: unused\
543
     * - decoding: set by lavc\
544
     */\
545
    uint8_t motion_subsample_log2;\
546
\
547
    /**\
548
     * for some private data of the user\
549
     * - encoding: unused\
550
     * - decoding: set by user\
551
     */\
552
    void *opaque;\
553
\
554
    /**\
555
     * error\
556
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
557
     * - decoding: unused\
558
     */\
559
    uint64_t error[4];\
560
\
561
    /**\
562
     * type of the buffer (to keep track of who has to dealloc data[*])\
563
     * - encoding: set by the one who allocs it\
564
     * - decoding: set by the one who allocs it\
565
     * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
566
     */\
567
    int type;\
568
    \
569
    /**\
570
     * when decoding, this signal how much the picture must be delayed.\
571
     * extra_delay = repeat_pict / (2*fps)\
572
     * - encoding: unused\
573
     * - decoding: set by lavc\
574
     */\
575
    int repeat_pict;\
576
    \
577
    /**\
578
     * \
579
     */\
580
    int qscale_type;\
581
    \
582
    /**\
583
     * The content of the picture is interlaced.\
584
     * - encoding: set by user\
585
     * - decoding: set by lavc (default 0)\
586
     */\
587
    int interlaced_frame;\
588
    \
589
    /**\
590
     * if the content is interlaced, is top field displayed first.\
591
     * - encoding: set by user\
592
     * - decoding: set by lavc\
593
     */\
594
    int top_field_first;\
595
    \
596
    /**\
597
     * Pan scan.\
598
     * - encoding: set by user\
599
     * - decoding: set by lavc\
600
     */\
601
    AVPanScan *pan_scan;\
602
    \
603
    /**\
604
     * tell user application that palette has changed from previous frame.\
605
     * - encoding: ??? (no palette-enabled encoder yet)\
606
     * - decoding: set by lavc (default 0)\
607
     */\
608
    int palette_has_changed;\
609
    \
610
    /**\
611
     * Codec suggestion on buffer type if != 0\
612
     * - encoding: unused\
613
     * - decoding: set by lavc (before get_buffer() call))\
614
     */\
615
    int buffer_hints;\
616
\
617
    /**\
618
     * DCT coeffitients\
619
     * - encoding: unused\
620
     * - decoding: set by lavc\
621
     */\
622
    short *dct_coeff;\
623
\
624
    /**\
625
     * Motion referece frame index\
626
     * - encoding: set by user\
627
     * - decoding: set by lavc\
628
     */\
629
    int8_t *ref_index[2];
630

    
631
#define FF_QSCALE_TYPE_MPEG1        0
632
#define FF_QSCALE_TYPE_MPEG2        1
633

    
634
#define FF_BUFFER_TYPE_INTERNAL 1
635
#define FF_BUFFER_TYPE_USER     2 ///< Direct rendering buffers (image is (de)allocated by user)
636
#define FF_BUFFER_TYPE_SHARED   4 ///< buffer from somewhere else, don't dealloc image (data/base), all other tables are not shared
637
#define FF_BUFFER_TYPE_COPY     8 ///< just a (modified) copy of some other buffer, don't dealloc anything
638

    
639

    
640
#define FF_I_TYPE 1 // Intra
641
#define FF_P_TYPE 2 // Predicted
642
#define FF_B_TYPE 3 // Bi-dir predicted
643
#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
644
#define FF_SI_TYPE 5
645
#define FF_SP_TYPE 6
646

    
647
#define FF_BUFFER_HINTS_VALID    0x01 // Buffer hints value is meaningful (if 0 ignore)
648
#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
649
#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
650
#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
651

    
652
/**
653
 * Audio Video Frame.
654
 */
655
typedef struct AVFrame {
656
    FF_COMMON_FRAME
657
} AVFrame;
658

    
659
#define DEFAULT_FRAME_RATE_BASE 1001000
660

    
661
/**
662
 * Used by av_log
663
 */
664
typedef struct AVCLASS AVClass;
665
struct AVCLASS {
666
    const char* class_name;
667
    const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext
668
                                        or AVFormatContext, which begin with an AVClass.
669
                                        Needed because av_log is in libavcodec and has no visibility
670
                                        of AVIn/OutputFormat */
671
};
672

    
673
/**
674
 * main external api structure.
675
 */
676
typedef struct AVCodecContext {
677
    /**
678
     * Info on struct for av_log
679
     * - set by avcodec_alloc_context
680
     */
681
    AVClass *av_class;
682
    /**
683
     * the average bitrate.
684
     * - encoding: set by user. unused for constant quantizer encoding
685
     * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream 
686
     */
687
    int bit_rate;
688

    
689
    /**
690
     * number of bits the bitstream is allowed to diverge from the reference.
691
     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
692
     * - encoding: set by user. unused for constant quantizer encoding
693
     * - decoding: unused
694
     */
695
    int bit_rate_tolerance; 
696

    
697
    /**
698
     * CODEC_FLAG_*.
699
     * - encoding: set by user.
700
     * - decoding: set by user.
701
     */
702
    int flags;
703

    
704
    /**
705
     * some codecs needs additionnal format info. It is stored here
706
     * - encoding: set by user. 
707
     * - decoding: set by lavc. (FIXME is this ok?)
708
     */
709
    int sub_id;
710

    
711
    /**
712
     * motion estimation algorithm used for video coding.
713
     * - encoding: MUST be set by user.
714
     * - decoding: unused
715
     */
716
    int me_method;
717

    
718
    /**
719
     * some codecs need / can use extra-data like huffman tables.
720
     * mjpeg: huffman tables
721
     * rv10: additional flags
722
     * mpeg4: global headers (they can be in the bitstream or here)
723
     * the allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
724
     * then extradata_size to avoid prolems if its read with the bitstream reader
725
     * - encoding: set/allocated/freed by lavc.
726
     * - decoding: set/allocated/freed by user.
727
     */
728
    void *extradata;
729
    int extradata_size;
730
    
731
    /* video only */
732
    /**
733
     * time base in which the timestamps are specified.
734
     * - encoding: MUST be set by user
735
     * - decoding: set by lavc.
736
     */
737
    AVRational time_base;
738
    
739
    /**
740
     * picture width / height.
741
     * - encoding: MUST be set by user. 
742
     * - decoding: set by lavc.
743
     * Note, for compatibility its possible to set this instead of 
744
     * coded_width/height before decoding
745
     */
746
    int width, height;
747
    
748
#define FF_ASPECT_EXTENDED 15
749

    
750
    /**
751
     * the number of pictures in a group of pitures, or 0 for intra_only.
752
     * - encoding: set by user.
753
     * - decoding: unused
754
     */
755
    int gop_size;
756

    
757
    /**
758
     * pixel format, see PIX_FMT_xxx.
759
     * - encoding: set by user.
760
     * - decoding: set by lavc.
761
     */
762
    enum PixelFormat pix_fmt;
763
 
764
    /**
765
     * Frame rate emulation. If not zero lower layer (i.e. format handler) 
766
     * has to read frames at native frame rate.
767
     * - encoding: set by user.
768
     * - decoding: unused.
769
     */
770
    int rate_emu;
771
       
772
    /**
773
     * if non NULL, 'draw_horiz_band' is called by the libavcodec
774
     * decoder to draw an horizontal band. It improve cache usage. Not
775
     * all codecs can do that. You must check the codec capabilities
776
     * before
777
     * - encoding: unused
778
     * - decoding: set by user.
779
     * @param height the height of the slice
780
     * @param y the y position of the slice
781
     * @param type 1->top field, 2->bottom field, 3->frame
782
     * @param offset offset into the AVFrame.data from which the slice should be read
783
     */
784
    void (*draw_horiz_band)(struct AVCodecContext *s,
785
                            const AVFrame *src, int offset[4],
786
                            int y, int type, int height);
787

    
788
    /* audio only */
789
    int sample_rate; ///< samples per sec 
790
    int channels;
791

    
792
    /**
793
     * audio sample format.
794
     * - encoding: set by user.
795
     * - decoding: set by lavc.
796
     */
797
    enum SampleFormat sample_fmt;  ///< sample format, currenly unused 
798

    
799
    /* the following data should not be initialized */
800
    /**
801
     * samples per packet. initialized when calling 'init' 
802
     */
803
    int frame_size;
804
    int frame_number;   ///< audio or video frame number 
805
    int real_pict_num;  ///< returns the real picture number of previous encoded frame 
806
    
807
    /**
808
     * number of frames the decoded output will be delayed relative to 
809
     * the encoded input.
810
     * - encoding: set by lavc.
811
     * - decoding: unused
812
     */
813
    int delay;
814
    
815
    /* - encoding parameters */
816
    float qcompress;  ///< amount of qscale change between easy & hard scenes (0.0-1.0)
817
    float qblur;      ///< amount of qscale smoothing over time (0.0-1.0) 
818
    
819
    /**
820
     * minimum quantizer.
821
     * - encoding: set by user.
822
     * - decoding: unused
823
     */
824
    int qmin;
825

    
826
    /**
827
     * maximum quantizer.
828
     * - encoding: set by user.
829
     * - decoding: unused
830
     */
831
    int qmax;
832

    
833
    /**
834
     * maximum quantizer difference etween frames.
835
     * - encoding: set by user.
836
     * - decoding: unused
837
     */
838
    int max_qdiff;
839

    
840
    /**
841
     * maximum number of b frames between non b frames.
842
     * note: the output will be delayed by max_b_frames+1 relative to the input
843
     * - encoding: set by user.
844
     * - decoding: unused
845
     */
846
    int max_b_frames;
847

    
848
    /**
849
     * qscale factor between ip and b frames.
850
     * - encoding: set by user.
851
     * - decoding: unused
852
     */
853
    float b_quant_factor;
854
    
855
    /** obsolete FIXME remove */
856
    int rc_strategy;
857
    int b_frame_strategy;
858

    
859
    /**
860
     * hurry up amount.
861
     * - encoding: unused
862
     * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
863
     */
864
    int hurry_up;
865
    
866
    struct AVCodec *codec;
867
    
868
    void *priv_data;
869

    
870
    /* unused, FIXME remove*/
871
    int rtp_mode;
872
    
873
    int rtp_payload_size;   /* The size of the RTP payload: the coder will  */
874
                            /* do it's best to deliver a chunk with size    */
875
                            /* below rtp_payload_size, the chunk will start */
876
                            /* with a start code on some codecs like H.263  */
877
                            /* This doesn't take account of any particular  */
878
                            /* headers inside the transmited RTP payload    */
879

    
880
    
881
    /* The RTP callback: This function is called   */
882
    /* every time the encoder has a packet to send */
883
    /* Depends on the encoder if the data starts   */
884
    /* with a Start Code (it should) H.263 does.   */
885
    /* mb_nb contains the number of macroblocks    */
886
    /* encoded in the RTP payload                  */
887
    void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb); 
888

    
889
    /* statistics, used for 2-pass encoding */
890
    int mv_bits;
891
    int header_bits;
892
    int i_tex_bits;
893
    int p_tex_bits;
894
    int i_count;
895
    int p_count;
896
    int skip_count;
897
    int misc_bits;
898
    
899
    /**
900
     * number of bits used for the previously encoded frame.
901
     * - encoding: set by lavc
902
     * - decoding: unused
903
     */
904
    int frame_bits;
905

    
906
    /**
907
     * private data of the user, can be used to carry app specific stuff.
908
     * - encoding: set by user
909
     * - decoding: set by user
910
     */
911
    void *opaque;
912

    
913
    char codec_name[32];
914
    enum CodecType codec_type; /* see CODEC_TYPE_xxx */
915
    enum CodecID codec_id; /* see CODEC_ID_xxx */
916
    
917
    /**
918
     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
919
     * this is used to workaround some encoder bugs
920
     * - encoding: set by user, if not then the default based on codec_id will be used
921
     * - decoding: set by user, will be converted to upper case by lavc during init
922
     */
923
    unsigned int codec_tag;
924
    
925
    /**
926
     * workaround bugs in encoders which sometimes cannot be detected automatically.
927
     * - encoding: set by user
928
     * - decoding: set by user
929
     */
930
    int workaround_bugs;
931
#define FF_BUG_AUTODETECT       1  ///< autodetection
932
#define FF_BUG_OLD_MSMPEG4      2
933
#define FF_BUG_XVID_ILACE       4
934
#define FF_BUG_UMP4             8
935
#define FF_BUG_NO_PADDING       16
936
#define FF_BUG_AMV              32
937
#define FF_BUG_AC_VLC           0  ///< will be removed, libavcodec can now handle these non compliant files by default
938
#define FF_BUG_QPEL_CHROMA      64
939
#define FF_BUG_STD_QPEL         128
940
#define FF_BUG_QPEL_CHROMA2     256
941
#define FF_BUG_DIRECT_BLOCKSIZE 512
942
#define FF_BUG_EDGE             1024
943
#define FF_BUG_HPEL_CHROMA      2048
944
#define FF_BUG_DC_CLIP          4096
945
#define FF_BUG_MS               8192 ///< workaround various bugs in microsofts broken decoders
946
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
947
        
948
    /**
949
     * luma single coeff elimination threshold.
950
     * - encoding: set by user
951
     * - decoding: unused
952
     */
953
    int luma_elim_threshold;
954
    
955
    /**
956
     * chroma single coeff elimination threshold.
957
     * - encoding: set by user
958
     * - decoding: unused
959
     */
960
    int chroma_elim_threshold;
961
    
962
    /**
963
     * strictly follow the std (MPEG4, ...).
964
     * - encoding: set by user
965
     * - decoding: unused
966
     */
967
    int strict_std_compliance;
968
#define FF_COMPLIANCE_VERY_STRICT   2 ///< strictly conform to a older more strict version of the spec or reference software
969
#define FF_COMPLIANCE_STRICT        1 ///< strictly conform to all the things in the spec no matter what consequences
970
#define FF_COMPLIANCE_NORMAL        0
971
#define FF_COMPLIANCE_INOFFICIAL   -1 ///< allow inofficial extensions
972
#define FF_COMPLIANCE_EXPERIMENTAL -2 ///< allow non standarized experimental things
973

    
974
    /**
975
     * qscale offset between ip and b frames.
976
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
977
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
978
     * - encoding: set by user.
979
     * - decoding: unused
980
     */
981
    float b_quant_offset;
982
    
983
    /**
984
     * error resilience higher values will detect more errors but may missdetect
985
     * some more or less valid parts as errors.
986
     * - encoding: unused
987
     * - decoding: set by user
988
     */
989
    int error_resilience;
990
#define FF_ER_CAREFULL        1
991
#define FF_ER_COMPLIANT       2
992
#define FF_ER_AGGRESSIVE      3
993
#define FF_ER_VERY_AGGRESSIVE 4
994
    
995
    /**
996
     * called at the beginning of each frame to get a buffer for it.
997
     * if pic.reference is set then the frame will be read later by lavc
998
     * avcodec_align_dimensions() should be used to find the required width and
999
     * height, as they normally need to be rounded up to the next multiple of 16
1000
     * - encoding: unused
1001
     * - decoding: set by lavc, user can override
1002
     */
1003
    int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
1004
    
1005
    /**
1006
     * called to release buffers which where allocated with get_buffer.
1007
     * a released buffer can be reused in get_buffer()
1008
     * pic.data[*] must be set to NULL
1009
     * - encoding: unused
1010
     * - decoding: set by lavc, user can override
1011
     */
1012
    void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
1013

    
1014
    /**
1015
     * if 1 the stream has a 1 frame delay during decoding.
1016
     * - encoding: set by lavc
1017
     * - decoding: set by lavc
1018
     */
1019
    int has_b_frames;
1020

    
1021
    /**
1022
     * number of bytes per packet if constant and known or 0
1023
     * used by some WAV based audio codecs
1024
     */
1025
    int block_align;
1026
    
1027
    int parse_only; /* - decoding only: if true, only parsing is done
1028
                       (function avcodec_parse_frame()). The frame
1029
                       data is returned. Only MPEG codecs support this now. */
1030
    
1031
    /**
1032
     * 0-> h263 quant 1-> mpeg quant.
1033
     * - encoding: set by user.
1034
     * - decoding: unused
1035
     */
1036
    int mpeg_quant;
1037
    
1038
    /**
1039
     * pass1 encoding statistics output buffer.
1040
     * - encoding: set by lavc
1041
     * - decoding: unused
1042
     */
1043
    char *stats_out;
1044
    
1045
    /**
1046
     * pass2 encoding statistics input buffer.
1047
     * concatenated stuff from stats_out of pass1 should be placed here
1048
     * - encoding: allocated/set/freed by user
1049
     * - decoding: unused
1050
     */
1051
    char *stats_in;
1052
    
1053
    /**
1054
     * ratecontrol qmin qmax limiting method.
1055
     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
1056
     * - encoding: set by user.
1057
     * - decoding: unused
1058
     */
1059
    float rc_qsquish;
1060

    
1061
    float rc_qmod_amp;
1062
    int rc_qmod_freq;
1063
    
1064
    /**
1065
     * ratecontrol override, see RcOverride.
1066
     * - encoding: allocated/set/freed by user.
1067
     * - decoding: unused
1068
     */
1069
    RcOverride *rc_override;
1070
    int rc_override_count;
1071
    
1072
    /**
1073
     * rate control equation.
1074
     * - encoding: set by user
1075
     * - decoding: unused
1076
     */
1077
    char *rc_eq;
1078
    
1079
    /**
1080
     * maximum bitrate.
1081
     * - encoding: set by user.
1082
     * - decoding: unused
1083
     */
1084
    int rc_max_rate;
1085
    
1086
    /**
1087
     * minimum bitrate.
1088
     * - encoding: set by user.
1089
     * - decoding: unused
1090
     */
1091
    int rc_min_rate;
1092
    
1093
    /**
1094
     * decoder bitstream buffer size.
1095
     * - encoding: set by user.
1096
     * - decoding: unused
1097
     */
1098
    int rc_buffer_size;
1099
    float rc_buffer_aggressivity;
1100

    
1101
    /**
1102
     * qscale factor between p and i frames.
1103
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1104
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
1105
     * - encoding: set by user.
1106
     * - decoding: unused
1107
     */
1108
    float i_quant_factor;
1109
    
1110
    /**
1111
     * qscale offset between p and i frames.
1112
     * - encoding: set by user.
1113
     * - decoding: unused
1114
     */
1115
    float i_quant_offset;
1116
    
1117
    /**
1118
     * initial complexity for pass1 ratecontrol.
1119
     * - encoding: set by user.
1120
     * - decoding: unused
1121
     */
1122
    float rc_initial_cplx;
1123

    
1124
    /**
1125
     * dct algorithm, see FF_DCT_* below.
1126
     * - encoding: set by user
1127
     * - decoding: unused
1128
     */
1129
    int dct_algo;
1130
#define FF_DCT_AUTO    0
1131
#define FF_DCT_FASTINT 1
1132
#define FF_DCT_INT     2
1133
#define FF_DCT_MMX     3
1134
#define FF_DCT_MLIB    4
1135
#define FF_DCT_ALTIVEC 5
1136
#define FF_DCT_FAAN    6
1137
    
1138
    /**
1139
     * luminance masking (0-> disabled).
1140
     * - encoding: set by user
1141
     * - decoding: unused
1142
     */
1143
    float lumi_masking;
1144
    
1145
    /**
1146
     * temporary complexity masking (0-> disabled).
1147
     * - encoding: set by user
1148
     * - decoding: unused
1149
     */
1150
    float temporal_cplx_masking;
1151
    
1152
    /**
1153
     * spatial complexity masking (0-> disabled).
1154
     * - encoding: set by user
1155
     * - decoding: unused
1156
     */
1157
    float spatial_cplx_masking;
1158
    
1159
    /**
1160
     * p block masking (0-> disabled).
1161
     * - encoding: set by user
1162
     * - decoding: unused
1163
     */
1164
    float p_masking;
1165

    
1166
    /**
1167
     * darkness masking (0-> disabled).
1168
     * - encoding: set by user
1169
     * - decoding: unused
1170
     */
1171
    float dark_masking;
1172
    
1173
    
1174
    /* for binary compatibility */
1175
    int unused;
1176
    
1177
    /**
1178
     * idct algorithm, see FF_IDCT_* below.
1179
     * - encoding: set by user
1180
     * - decoding: set by user
1181
     */
1182
    int idct_algo;
1183
#define FF_IDCT_AUTO         0
1184
#define FF_IDCT_INT          1
1185
#define FF_IDCT_SIMPLE       2
1186
#define FF_IDCT_SIMPLEMMX    3
1187
#define FF_IDCT_LIBMPEG2MMX  4
1188
#define FF_IDCT_PS2          5
1189
#define FF_IDCT_MLIB         6
1190
#define FF_IDCT_ARM          7
1191
#define FF_IDCT_ALTIVEC      8
1192
#define FF_IDCT_SH4          9
1193
#define FF_IDCT_SIMPLEARM    10
1194
#define FF_IDCT_H264         11
1195
#define FF_IDCT_VP3          12
1196
#define FF_IDCT_IPP          13
1197

    
1198
    /**
1199
     * slice count.
1200
     * - encoding: set by lavc
1201
     * - decoding: set by user (or 0)
1202
     */
1203
    int slice_count;
1204
    /**
1205
     * slice offsets in the frame in bytes.
1206
     * - encoding: set/allocated by lavc
1207
     * - decoding: set/allocated by user (or NULL)
1208
     */
1209
    int *slice_offset;
1210

    
1211
    /**
1212
     * error concealment flags.
1213
     * - encoding: unused
1214
     * - decoding: set by user
1215
     */
1216
    int error_concealment;
1217
#define FF_EC_GUESS_MVS   1
1218
#define FF_EC_DEBLOCK     2
1219

    
1220
    /**
1221
     * dsp_mask could be add used to disable unwanted CPU features
1222
     * CPU features (i.e. MMX, SSE. ...)
1223
     *
1224
     * with FORCE flag you may instead enable given CPU features
1225
     * (Dangerous: usable in case of misdetection, improper usage however will
1226
     * result into program crash)
1227
     */
1228
    unsigned dsp_mask;
1229
#define FF_MM_FORCE        0x80000000 /* force usage of selected flags (OR) */
1230
    /* lower 16 bits - CPU features */
1231
#ifdef HAVE_MMX
1232
#define FF_MM_MMX        0x0001 /* standard MMX */
1233
#define FF_MM_3DNOW        0x0004 /* AMD 3DNOW */
1234
#define FF_MM_MMXEXT        0x0002 /* SSE integer functions or AMD MMX ext */
1235
#define FF_MM_SSE        0x0008 /* SSE functions */
1236
#define FF_MM_SSE2        0x0010 /* PIV SSE2 functions */
1237
#define FF_MM_3DNOWEXT        0x0020 /* AMD 3DNowExt */
1238
#endif /* HAVE_MMX */
1239
#ifdef HAVE_IWMMXT
1240
#define FF_MM_IWMMXT        0x0100 /* XScale IWMMXT */
1241
#endif /* HAVE_IWMMXT */
1242

    
1243
    /**
1244
     * bits per sample/pixel from the demuxer (needed for huffyuv).
1245
     * - encoding: set by lavc
1246
     * - decoding: set by user
1247
     */
1248
     int bits_per_sample;
1249
    
1250
    /**
1251
     * prediction method (needed for huffyuv).
1252
     * - encoding: set by user
1253
     * - decoding: unused
1254
     */
1255
     int prediction_method;
1256
#define FF_PRED_LEFT   0
1257
#define FF_PRED_PLANE  1
1258
#define FF_PRED_MEDIAN 2
1259
    
1260
    /**
1261
     * sample aspect ratio (0 if unknown).
1262
     * numerator and denominator must be relative prime and smaller then 256 for some video standards
1263
     * - encoding: set by user.
1264
     * - decoding: set by lavc.
1265
     */
1266
    AVRational sample_aspect_ratio;
1267

    
1268
    /**
1269
     * the picture in the bitstream.
1270
     * - encoding: set by lavc
1271
     * - decoding: set by lavc
1272
     */
1273
    AVFrame *coded_frame;
1274

    
1275
    /**
1276
     * debug.
1277
     * - encoding: set by user.
1278
     * - decoding: set by user.
1279
     */
1280
    int debug;
1281
#define FF_DEBUG_PICT_INFO 1
1282
#define FF_DEBUG_RC        2
1283
#define FF_DEBUG_BITSTREAM 4
1284
#define FF_DEBUG_MB_TYPE   8
1285
#define FF_DEBUG_QP        16
1286
#define FF_DEBUG_MV        32
1287
#define FF_DEBUG_DCT_COEFF 0x00000040
1288
#define FF_DEBUG_SKIP      0x00000080
1289
#define FF_DEBUG_STARTCODE 0x00000100
1290
#define FF_DEBUG_PTS       0x00000200
1291
#define FF_DEBUG_ER        0x00000400
1292
#define FF_DEBUG_MMCO      0x00000800
1293
#define FF_DEBUG_BUGS      0x00001000
1294
#define FF_DEBUG_VIS_QP    0x00002000
1295
#define FF_DEBUG_VIS_MB_TYPE 0x00004000
1296
    
1297
    /**
1298
     * debug.
1299
     * - encoding: set by user.
1300
     * - decoding: set by user.
1301
     */
1302
    int debug_mv;
1303
#define FF_DEBUG_VIS_MV_P_FOR  0x00000001 //visualize forward predicted MVs of P frames
1304
#define FF_DEBUG_VIS_MV_B_FOR  0x00000002 //visualize forward predicted MVs of B frames
1305
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1306

    
1307
    /**
1308
     * error.
1309
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1310
     * - decoding: unused
1311
     */
1312
    uint64_t error[4];
1313
    
1314
    /**
1315
     * minimum MB quantizer.
1316
     * - encoding: unused
1317
     * - decoding: unused
1318
     */
1319
    int mb_qmin;
1320

    
1321
    /**
1322
     * maximum MB quantizer.
1323
     * - encoding: unused
1324
     * - decoding: unused
1325
     */
1326
    int mb_qmax;
1327
    
1328
    /**
1329
     * motion estimation compare function.
1330
     * - encoding: set by user.
1331
     * - decoding: unused
1332
     */
1333
    int me_cmp;
1334
    /**
1335
     * subpixel motion estimation compare function.
1336
     * - encoding: set by user.
1337
     * - decoding: unused
1338
     */
1339
    int me_sub_cmp;
1340
    /**
1341
     * macroblock compare function (not supported yet).
1342
     * - encoding: set by user.
1343
     * - decoding: unused
1344
     */
1345
    int mb_cmp;
1346
    /**
1347
     * interlaced dct compare function
1348
     * - encoding: set by user.
1349
     * - decoding: unused
1350
     */
1351
    int ildct_cmp;
1352
#define FF_CMP_SAD  0
1353
#define FF_CMP_SSE  1
1354
#define FF_CMP_SATD 2
1355
#define FF_CMP_DCT  3
1356
#define FF_CMP_PSNR 4
1357
#define FF_CMP_BIT  5
1358
#define FF_CMP_RD   6
1359
#define FF_CMP_ZERO 7
1360
#define FF_CMP_VSAD 8
1361
#define FF_CMP_VSSE 9
1362
#define FF_CMP_NSSE 10
1363
#define FF_CMP_W53  11
1364
#define FF_CMP_W97  12
1365
#define FF_CMP_DCTMAX 13
1366
#define FF_CMP_CHROMA 256
1367
    
1368
    /**
1369
     * ME diamond size & shape.
1370
     * - encoding: set by user.
1371
     * - decoding: unused
1372
     */
1373
    int dia_size;
1374

    
1375
    /**
1376
     * amount of previous MV predictors (2a+1 x 2a+1 square).
1377
     * - encoding: set by user.
1378
     * - decoding: unused
1379
     */
1380
    int last_predictor_count;
1381

    
1382
    /**
1383
     * pre pass for motion estimation.
1384
     * - encoding: set by user.
1385
     * - decoding: unused
1386
     */
1387
    int pre_me;
1388

    
1389
    /**
1390
     * motion estimation pre pass compare function.
1391
     * - encoding: set by user.
1392
     * - decoding: unused
1393
     */
1394
    int me_pre_cmp;
1395

    
1396
    /**
1397
     * ME pre pass diamond size & shape.
1398
     * - encoding: set by user.
1399
     * - decoding: unused
1400
     */
1401
    int pre_dia_size;
1402

    
1403
    /**
1404
     * subpel ME quality.
1405
     * - encoding: set by user.
1406
     * - decoding: unused
1407
     */
1408
    int me_subpel_quality;
1409

    
1410
    /**
1411
     * callback to negotiate the pixelFormat.
1412
     * @param fmt is the list of formats which are supported by the codec,
1413
     * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1414
     * the first is allways the native one
1415
     * @return the choosen format
1416
     * - encoding: unused
1417
     * - decoding: set by user, if not set then the native format will always be choosen
1418
     */
1419
    enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
1420

    
1421
    /**
1422
     * DTG active format information (additionnal aspect ratio
1423
     * information only used in DVB MPEG2 transport streams). 0 if
1424
     * not set.
1425
     * 
1426
     * - encoding: unused.
1427
     * - decoding: set by decoder 
1428
     */
1429
    int dtg_active_format;
1430
#define FF_DTG_AFD_SAME         8
1431
#define FF_DTG_AFD_4_3          9
1432
#define FF_DTG_AFD_16_9         10
1433
#define FF_DTG_AFD_14_9         11
1434
#define FF_DTG_AFD_4_3_SP_14_9  13
1435
#define FF_DTG_AFD_16_9_SP_14_9 14
1436
#define FF_DTG_AFD_SP_4_3       15
1437

    
1438
    /**
1439
     * Maximum motion estimation search range in subpel units.
1440
     * if 0 then no limit
1441
     * 
1442
     * - encoding: set by user.
1443
     * - decoding: unused.
1444
     */
1445
    int me_range;
1446

    
1447
    /**
1448
     * intra quantizer bias.
1449
     * - encoding: set by user.
1450
     * - decoding: unused
1451
     */
1452
    int intra_quant_bias;
1453
#define FF_DEFAULT_QUANT_BIAS 999999
1454
    
1455
    /**
1456
     * inter quantizer bias.
1457
     * - encoding: set by user.
1458
     * - decoding: unused
1459
     */
1460
    int inter_quant_bias;
1461

    
1462
    /**
1463
     * color table ID.
1464
     * - encoding: unused.
1465
     * - decoding: which clrtable should be used for 8bit RGB images
1466
     *             table have to be stored somewhere FIXME
1467
     */
1468
    int color_table_id;
1469
    
1470
    /**
1471
     * internal_buffer count. 
1472
     * Don't touch, used by lavc default_get_buffer()
1473
     */
1474
    int internal_buffer_count;
1475
    
1476
    /**
1477
     * internal_buffers. 
1478
     * Don't touch, used by lavc default_get_buffer()
1479
     */
1480
    void *internal_buffer;
1481

    
1482
#define FF_LAMBDA_SHIFT 7
1483
#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1484
#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1485
#define FF_LAMBDA_MAX (256*128-1)
1486

    
1487
#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
1488
    /**
1489
     * global quality for codecs which cannot change it per frame.
1490
     * this should be proportional to MPEG1/2/4 qscale.
1491
     * - encoding: set by user.
1492
     * - decoding: unused
1493
     */
1494
    int global_quality;
1495
    
1496
#define FF_CODER_TYPE_VLC   0
1497
#define FF_CODER_TYPE_AC    1
1498
    /**
1499
     * coder type
1500
     * - encoding: set by user.
1501
     * - decoding: unused
1502
     */
1503
    int coder_type;
1504

    
1505
    /**
1506
     * context model
1507
     * - encoding: set by user.
1508
     * - decoding: unused
1509
     */
1510
    int context_model;
1511
    
1512
    /**
1513
     * slice flags
1514
     * - encoding: unused
1515
     * - decoding: set by user.
1516
     */
1517
    int slice_flags;
1518
#define SLICE_FLAG_CODED_ORDER    0x0001 ///< draw_horiz_band() is called in coded order instead of display
1519
#define SLICE_FLAG_ALLOW_FIELD    0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1520
#define SLICE_FLAG_ALLOW_PLANE    0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1521

    
1522
    /**
1523
     * XVideo Motion Acceleration
1524
     * - encoding: forbidden
1525
     * - decoding: set by decoder
1526
     */
1527
    int xvmc_acceleration;
1528
    
1529
    /**
1530
     * macroblock decision mode
1531
     * - encoding: set by user.
1532
     * - decoding: unused
1533
     */
1534
    int mb_decision;
1535
#define FF_MB_DECISION_SIMPLE 0        ///< uses mb_cmp
1536
#define FF_MB_DECISION_BITS   1        ///< chooses the one which needs the fewest bits
1537
#define FF_MB_DECISION_RD     2        ///< rate distoration
1538

    
1539
    /**
1540
     * custom intra quantization matrix
1541
     * - encoding: set by user, can be NULL
1542
     * - decoding: set by lavc
1543
     */
1544
    uint16_t *intra_matrix;
1545

    
1546
    /**
1547
     * custom inter quantization matrix
1548
     * - encoding: set by user, can be NULL
1549
     * - decoding: set by lavc
1550
     */
1551
    uint16_t *inter_matrix;
1552
    
1553
    /**
1554
     * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1555
     * this is used to workaround some encoder bugs
1556
     * - encoding: unused
1557
     * - decoding: set by user, will be converted to upper case by lavc during init
1558
     */
1559
    unsigned int stream_codec_tag;
1560

    
1561
    /**
1562
     * scene change detection threshold.
1563
     * 0 is default, larger means fewer detected scene changes
1564
     * - encoding: set by user.
1565
     * - decoding: unused
1566
     */
1567
    int scenechange_threshold;
1568

    
1569
    /**
1570
     * minimum lagrange multipler
1571
     * - encoding: set by user.
1572
     * - decoding: unused
1573
     */
1574
    int lmin;
1575

    
1576
    /**
1577
     * maximum lagrange multipler
1578
     * - encoding: set by user.
1579
     * - decoding: unused
1580
     */
1581
    int lmax;
1582

    
1583
    /**
1584
     * Palette control structure
1585
     * - encoding: ??? (no palette-enabled encoder yet)
1586
     * - decoding: set by user.
1587
     */
1588
    struct AVPaletteControl *palctrl;
1589

    
1590
    /**
1591
     * noise reduction strength
1592
     * - encoding: set by user.
1593
     * - decoding: unused
1594
     */
1595
    int noise_reduction;
1596
    
1597
    /**
1598
     * called at the beginning of a frame to get cr buffer for it.
1599
     * buffer type (size, hints) must be the same. lavc won't check it.
1600
     * lavc will pass previous buffer in pic, function should return
1601
     * same buffer or new buffer with old frame "painted" into it.
1602
     * if pic.data[0] == NULL must behave like get_buffer().
1603
     * - encoding: unused
1604
     * - decoding: set by lavc, user can override
1605
     */
1606
    int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
1607

    
1608
    /**
1609
     * number of bits which should be loaded into the rc buffer before decoding starts
1610
     * - encoding: set by user.
1611
     * - decoding: unused
1612
     */
1613
    int rc_initial_buffer_occupancy;
1614

    
1615
    /**
1616
     *
1617
     * - encoding: set by user.
1618
     * - decoding: unused
1619
     */
1620
    int inter_threshold;
1621

    
1622
    /**
1623
     * CODEC_FLAG2_*.
1624
     * - encoding: set by user.
1625
     * - decoding: set by user.
1626
     */
1627
    int flags2;
1628

    
1629
    /**
1630
     * simulates errors in the bitstream to test error concealment.
1631
     * - encoding: set by user.
1632
     * - decoding: unused.
1633
     */
1634
    int error_rate;
1635
    
1636
    /**
1637
     * MP3 antialias algorithm, see FF_AA_* below.
1638
     * - encoding: unused
1639
     * - decoding: set by user
1640
     */
1641
    int antialias_algo;
1642
#define FF_AA_AUTO    0
1643
#define FF_AA_FASTINT 1 //not implemented yet
1644
#define FF_AA_INT     2
1645
#define FF_AA_FLOAT   3
1646
    /**
1647
     * Quantizer noise shaping.
1648
     * - encoding: set by user
1649
     * - decoding: unused
1650
     */
1651
    int quantizer_noise_shaping;
1652

    
1653
    /**
1654
     * Thread count.
1655
     * is used to decide how many independant tasks should be passed to execute()
1656
     * - encoding: set by user
1657
     * - decoding: set by user
1658
     */
1659
    int thread_count;
1660
    
1661
    /**
1662
     * the codec may call this to execute several independant things. it will return only after
1663
     * finishing all tasks, the user may replace this with some multithreaded implementation, the
1664
     * default implementation will execute the parts serially
1665
     * @param count the number of things to execute
1666
     * - encoding: set by lavc, user can override
1667
     * - decoding: set by lavc, user can override
1668
     */
1669
    int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
1670
    
1671
    /**
1672
     * Thread opaque.
1673
     * can be used by execute() to store some per AVCodecContext stuff.
1674
     * - encoding: set by execute()
1675
     * - decoding: set by execute()
1676
     */
1677
    void *thread_opaque;
1678

    
1679
    /**
1680
     * Motion estimation threshold. under which no motion estimation is 
1681
     * performed, but instead the user specified motion vectors are used
1682
     * 
1683
     * - encoding: set by user
1684
     * - decoding: unused
1685
     */
1686
     int me_threshold;
1687

    
1688
    /**
1689
     * Macroblock threshold. under which the user specified macroblock types will be used
1690
     * - encoding: set by user
1691
     * - decoding: unused
1692
     */
1693
     int mb_threshold;
1694

    
1695
    /**
1696
     * precision of the intra dc coefficient - 8.
1697
     * - encoding: set by user
1698
     * - decoding: unused
1699
     */
1700
     int intra_dc_precision;
1701

    
1702
    /**
1703
     * noise vs. sse weight for the nsse comparsion function.
1704
     * - encoding: set by user
1705
     * - decoding: unused
1706
     */
1707
     int nsse_weight;
1708

    
1709
    /**
1710
     * number of macroblock rows at the top which are skipped.
1711
     * - encoding: unused
1712
     * - decoding: set by user
1713
     */
1714
     int skip_top;
1715

    
1716
    /**
1717
     * number of macroblock rows at the bottom which are skipped.
1718
     * - encoding: unused
1719
     * - decoding: set by user
1720
     */
1721
     int skip_bottom;
1722

    
1723
    /**
1724
     * profile
1725
     * - encoding: set by user
1726
     * - decoding: set by lavc
1727
     */
1728
     int profile;
1729
#define FF_PROFILE_UNKNOWN -99
1730

    
1731
    /**
1732
     * level
1733
     * - encoding: set by user
1734
     * - decoding: set by lavc
1735
     */
1736
     int level;
1737
#define FF_LEVEL_UNKNOWN -99
1738

    
1739
    /**
1740
     * low resolution decoding. 1-> 1/2 size, 2->1/4 size
1741
     * - encoding: unused
1742
     * - decoding: set by user
1743
     */
1744
     int lowres;
1745

    
1746
    /**
1747
     * bitsream width / height. may be different from width/height if lowres
1748
     * or other things are used
1749
     * - encoding: unused
1750
     * - decoding: set by user before init if known, codec should override / dynamically change if needed
1751
     */
1752
    int coded_width, coded_height;
1753

    
1754
    /**
1755
     * frame skip threshold
1756
     * - encoding: set by user
1757
     * - decoding: unused
1758
     */
1759
    int frame_skip_threshold;
1760

    
1761
    /**
1762
     * frame skip factor
1763
     * - encoding: set by user
1764
     * - decoding: unused
1765
     */
1766
    int frame_skip_factor;
1767

    
1768
    /**
1769
     * frame skip exponent
1770
     * - encoding: set by user
1771
     * - decoding: unused
1772
     */
1773
    int frame_skip_exp;
1774

    
1775
    /**
1776
     * frame skip comparission function
1777
     * - encoding: set by user.
1778
     * - decoding: unused
1779
     */
1780
    int frame_skip_cmp;
1781

    
1782
    /**
1783
     * border processing masking. raises the quantizer for mbs on the borders
1784
     * of the picture.
1785
     * - encoding: set by user
1786
     * - decoding: unused
1787
     */
1788
    float border_masking;
1789

    
1790
    /**
1791
     * minimum MB lagrange multipler.
1792
     * - encoding: set by user.
1793
     * - decoding: unused
1794
     */
1795
    int mb_lmin;
1796

    
1797
    /**
1798
     * maximum MB lagrange multipler.
1799
     * - encoding: set by user.
1800
     * - decoding: unused
1801
     */
1802
    int mb_lmax;
1803

    
1804
    /**
1805
     * 
1806
     * - encoding: set by user.
1807
     * - decoding: unused
1808
     */
1809
    int me_penalty_compensation;
1810
} AVCodecContext;
1811

    
1812

    
1813
/**
1814
 * AVOption.
1815
 */
1816
typedef struct AVOption {
1817
    /** options' name */
1818
    const char *name; /* if name is NULL, it indicates a link to next */
1819
    /** short English text help or const struct AVOption* subpointer */
1820
    const char *help; //        const struct AVOption* sub;
1821
    /** offset to context structure where the parsed value should be stored */
1822
    int offset;
1823
    /** options' type */
1824
    int type;
1825
#define FF_OPT_TYPE_BOOL 1      ///< boolean - true,1,on  (or simply presence)
1826
#define FF_OPT_TYPE_DOUBLE 2    ///< double
1827
#define FF_OPT_TYPE_INT 3       ///< integer
1828
#define FF_OPT_TYPE_STRING 4    ///< string (finished with \0)
1829
#define FF_OPT_TYPE_MASK 0x1f        ///< mask for types - upper bits are various flags
1830
//#define FF_OPT_TYPE_EXPERT 0x20 // flag for expert option
1831
#define FF_OPT_TYPE_FLAG (FF_OPT_TYPE_BOOL | 0x40)
1832
#define FF_OPT_TYPE_RCOVERRIDE (FF_OPT_TYPE_STRING | 0x80)
1833
    /** min value  (min == max   ->  no limits) */
1834
    double min;
1835
    /** maximum value for double/int */
1836
    double max;
1837
    /** default boo [0,1]l/double/int value */
1838
    double defval;
1839
    /**
1840
     * default string value (with optional semicolon delimited extra option-list
1841
     * i.e.   option1;option2;option3
1842
     * defval might select other then first argument as default
1843
     */
1844
    const char *defstr;
1845
#define FF_OPT_MAX_DEPTH 10
1846
} AVOption;
1847

    
1848
/**
1849
 * AVCodec.
1850
 */
1851
typedef struct AVCodec {
1852
    const char *name;
1853
    enum CodecType type;
1854
    enum CodecID id;
1855
    int priv_data_size;
1856
    int (*init)(AVCodecContext *);
1857
    int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
1858
    int (*close)(AVCodecContext *);
1859
    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
1860
                  uint8_t *buf, int buf_size);
1861
    int capabilities;
1862
    void *dummy; // FIXME remove next time we break binary compatibility
1863
    struct AVCodec *next;
1864
    void (*flush)(AVCodecContext *);
1865
    const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
1866
    const enum PixelFormat *pix_fmts;       ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
1867
} AVCodec;
1868

    
1869
/**
1870
 * four components are given, that's all.
1871
 * the last component is alpha
1872
 */
1873
typedef struct AVPicture {
1874
    uint8_t *data[4];
1875
    int linesize[4];       ///< number of bytes per line
1876
} AVPicture;
1877

    
1878
/**
1879
 * AVPaletteControl
1880
 * This structure defines a method for communicating palette changes
1881
 * between and demuxer and a decoder.
1882
 */
1883
#define AVPALETTE_SIZE 1024
1884
#define AVPALETTE_COUNT 256
1885
typedef struct AVPaletteControl {
1886

    
1887
    /* demuxer sets this to 1 to indicate the palette has changed;
1888
     * decoder resets to 0 */
1889
    int palette_changed;
1890

    
1891
    /* 4-byte ARGB palette entries, stored in native byte order; note that
1892
     * the individual palette components should be on a 8-bit scale; if
1893
     * the palette data comes from a IBM VGA native format, the component
1894
     * data is probably 6 bits in size and needs to be scaled */
1895
    unsigned int palette[AVPALETTE_COUNT];
1896

    
1897
} AVPaletteControl;
1898

    
1899
typedef struct AVSubtitle {
1900
    uint16_t format; /* 0 = graphics */
1901
    uint16_t x;
1902
    uint16_t y;
1903
    uint16_t w;
1904
    uint16_t h;
1905
    uint16_t nb_colors;
1906
    uint32_t start_display_time; /* relative to packet pts, in ms */
1907
    uint32_t end_display_time; /* relative to packet pts, in ms */
1908
    int linesize;
1909
    uint32_t *rgba_palette;
1910
    uint8_t *bitmap;
1911
} AVSubtitle;
1912

    
1913
extern AVCodec ac3_encoder;
1914
extern AVCodec mp2_encoder;
1915
extern AVCodec mp3lame_encoder;
1916
extern AVCodec oggvorbis_encoder;
1917
extern AVCodec oggtheora_encoder;
1918
extern AVCodec faac_encoder;
1919
extern AVCodec xvid_encoder;
1920
extern AVCodec mpeg1video_encoder;
1921
extern AVCodec mpeg2video_encoder;
1922
extern AVCodec h261_encoder;
1923
extern AVCodec h263_encoder;
1924
extern AVCodec h263p_encoder;
1925
extern AVCodec flv_encoder;
1926
extern AVCodec rv10_encoder;
1927
extern AVCodec rv20_encoder;
1928
extern AVCodec dvvideo_encoder;
1929
extern AVCodec mjpeg_encoder;
1930
extern AVCodec ljpeg_encoder;
1931
extern AVCodec png_encoder;
1932
extern AVCodec ppm_encoder;
1933
extern AVCodec pgm_encoder;
1934
extern AVCodec pgmyuv_encoder;
1935
extern AVCodec pbm_encoder;
1936
extern AVCodec pam_encoder;
1937
extern AVCodec mpeg4_encoder;
1938
extern AVCodec msmpeg4v1_encoder;
1939
extern AVCodec msmpeg4v2_encoder;
1940
extern AVCodec msmpeg4v3_encoder;
1941
extern AVCodec wmv1_encoder;
1942
extern AVCodec wmv2_encoder;
1943
extern AVCodec huffyuv_encoder;
1944
extern AVCodec ffvhuff_encoder;
1945
extern AVCodec h264_encoder;
1946
extern AVCodec asv1_encoder;
1947
extern AVCodec asv2_encoder;
1948
extern AVCodec vcr1_encoder;
1949
extern AVCodec ffv1_encoder;
1950
extern AVCodec snow_encoder;
1951
extern AVCodec mdec_encoder;
1952
extern AVCodec zlib_encoder;
1953
extern AVCodec sonic_encoder;
1954
extern AVCodec sonic_ls_encoder;
1955
extern AVCodec svq1_encoder;
1956
extern AVCodec x264_encoder;
1957

    
1958
extern AVCodec h263_decoder;
1959
extern AVCodec h261_decoder;
1960
extern AVCodec mpeg4_decoder;
1961
extern AVCodec msmpeg4v1_decoder;
1962
extern AVCodec msmpeg4v2_decoder;
1963
extern AVCodec msmpeg4v3_decoder;
1964
extern AVCodec wmv1_decoder;
1965
extern AVCodec wmv2_decoder;
1966
extern AVCodec vc9_decoder;
1967
extern AVCodec wmv3_decoder;
1968
extern AVCodec mpeg1video_decoder;
1969
extern AVCodec mpeg2video_decoder;
1970
extern AVCodec mpegvideo_decoder;
1971
extern AVCodec mpeg_xvmc_decoder;
1972
extern AVCodec h263i_decoder;
1973
extern AVCodec flv_decoder;
1974
extern AVCodec rv10_decoder;
1975
extern AVCodec rv20_decoder;
1976
extern AVCodec rv30_decoder;
1977
extern AVCodec rv40_decoder;
1978
extern AVCodec svq1_decoder;
1979
extern AVCodec svq3_decoder;
1980
extern AVCodec dvvideo_decoder;
1981
extern AVCodec wmav1_decoder;
1982
extern AVCodec wmav2_decoder;
1983
extern AVCodec mjpeg_decoder;
1984
extern AVCodec mjpegb_decoder;
1985
extern AVCodec sp5x_decoder;
1986
extern AVCodec png_decoder;
1987
extern AVCodec mp2_decoder;
1988
extern AVCodec mp3_decoder;
1989
extern AVCodec mp3adu_decoder;
1990
extern AVCodec mp3on4_decoder;
1991
extern AVCodec mace3_decoder;
1992
extern AVCodec mace6_decoder;
1993
extern AVCodec huffyuv_decoder;
1994
extern AVCodec ffvhuff_decoder;
1995
extern AVCodec oggvorbis_decoder;
1996
extern AVCodec oggtheora_decoder;
1997
extern AVCodec cyuv_decoder;
1998
extern AVCodec h264_decoder;
1999
extern AVCodec indeo3_decoder;
2000
extern AVCodec vp3_decoder;
2001
extern AVCodec theora_decoder;
2002
extern AVCodec amr_nb_decoder;
2003
extern AVCodec amr_nb_encoder;
2004
extern AVCodec amr_wb_encoder;
2005
extern AVCodec amr_wb_decoder;
2006
extern AVCodec aac_decoder;
2007
extern AVCodec mpeg4aac_decoder;
2008
extern AVCodec asv1_decoder;
2009
extern AVCodec asv2_decoder;
2010
extern AVCodec vcr1_decoder;
2011
extern AVCodec cljr_decoder;
2012
extern AVCodec ffv1_decoder;
2013
extern AVCodec snow_decoder;
2014
extern AVCodec fourxm_decoder;
2015
extern AVCodec mdec_decoder;
2016
extern AVCodec roq_decoder;
2017
extern AVCodec interplay_video_decoder;
2018
extern AVCodec xan_wc3_decoder;
2019
extern AVCodec rpza_decoder;
2020
extern AVCodec cinepak_decoder;
2021
extern AVCodec msrle_decoder;
2022
extern AVCodec msvideo1_decoder;
2023
extern AVCodec vqa_decoder;
2024
extern AVCodec idcin_decoder;
2025
extern AVCodec eightbps_decoder;
2026
extern AVCodec smc_decoder;
2027
extern AVCodec flic_decoder;
2028
extern AVCodec vmdvideo_decoder;
2029
extern AVCodec vmdaudio_decoder;
2030
extern AVCodec truemotion1_decoder;
2031
extern AVCodec mszh_decoder;
2032
extern AVCodec zlib_decoder;
2033
extern AVCodec ra_144_decoder;
2034
extern AVCodec ra_288_decoder;
2035
extern AVCodec roq_dpcm_decoder;
2036
extern AVCodec interplay_dpcm_decoder;
2037
extern AVCodec xan_dpcm_decoder;
2038
extern AVCodec sol_dpcm_decoder;
2039
extern AVCodec sonic_decoder;
2040
extern AVCodec qtrle_decoder;
2041
extern AVCodec flac_decoder;
2042
extern AVCodec tscc_decoder;
2043
extern AVCodec ulti_decoder;
2044
extern AVCodec qdraw_decoder;
2045
extern AVCodec xl_decoder;
2046
extern AVCodec qpeg_decoder;
2047
extern AVCodec shorten_decoder;
2048
extern AVCodec loco_decoder;
2049
extern AVCodec wnv1_decoder;
2050
extern AVCodec aasc_decoder;
2051
extern AVCodec alac_decoder;
2052
extern AVCodec ws_snd1_decoder;
2053
extern AVCodec indeo2_decoder;
2054
extern AVCodec vorbis_decoder;
2055
extern AVCodec fraps_decoder;
2056
extern AVCodec libgsm_encoder;
2057
extern AVCodec libgsm_decoder;
2058

    
2059
/* pcm codecs */
2060
#define PCM_CODEC(id, name) \
2061
extern AVCodec name ## _decoder; \
2062
extern AVCodec name ## _encoder
2063

    
2064
PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
2065
PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
2066
PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
2067
PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
2068
PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
2069
PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
2070
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
2071
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
2072

    
2073
/* adpcm codecs */
2074

    
2075
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
2076
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
2077
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
2078
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
2079
PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
2080
PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
2081
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
2082
PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
2083
PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
2084
PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
2085
PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
2086
PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
2087
PCM_CODEC(CODEC_ID_ADPCM_CT, adpcm_ct);
2088
PCM_CODEC(CODEC_ID_ADPCM_SWF, adpcm_swf);
2089

    
2090
#undef PCM_CODEC
2091

    
2092
/* dummy raw video codec */
2093
extern AVCodec rawvideo_encoder;
2094
extern AVCodec rawvideo_decoder;
2095

    
2096
/* the following codecs use external GPL libs */
2097
extern AVCodec ac3_decoder;
2098
extern AVCodec dts_decoder;
2099

    
2100
/* subtitles */
2101
extern AVCodec dvdsub_decoder;
2102
extern AVCodec dvbsub_encoder;
2103

    
2104
/* resample.c */
2105

    
2106
struct ReSampleContext;
2107
struct AVResampleContext;
2108

    
2109
typedef struct ReSampleContext ReSampleContext;
2110

    
2111
ReSampleContext *audio_resample_init(int output_channels, int input_channels, 
2112
                                     int output_rate, int input_rate);
2113
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
2114
void audio_resample_close(ReSampleContext *s);
2115

    
2116
struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
2117
int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
2118
void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
2119
void av_resample_close(struct AVResampleContext *c);
2120

    
2121
/* YUV420 format is assumed ! */
2122

    
2123
struct ImgReSampleContext;
2124

    
2125
typedef struct ImgReSampleContext ImgReSampleContext;
2126

    
2127
ImgReSampleContext *img_resample_init(int output_width, int output_height,
2128
                                      int input_width, int input_height);
2129

    
2130
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
2131
                                      int iwidth, int iheight,
2132
                                      int topBand, int bottomBand,
2133
                                      int leftBand, int rightBand,
2134
                                      int padtop, int padbottom,
2135
                                      int padleft, int padright);
2136

    
2137

    
2138
void img_resample(ImgReSampleContext *s, 
2139
                  AVPicture *output, const AVPicture *input);
2140

    
2141
void img_resample_close(ImgReSampleContext *s);
2142

    
2143
/**
2144
 * Allocate memory for a picture.  Call avpicture_free to free it.
2145
 *
2146
 * @param picture the picture to be filled in.
2147
 * @param pix_fmt the format of the picture.
2148
 * @param width the width of the picture.
2149
 * @param height the height of the picture.
2150
 * @return 0 if successful, -1 if not.
2151
 */
2152
int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
2153

    
2154
/* Free a picture previously allocated by avpicture_alloc. */
2155
void avpicture_free(AVPicture *picture);
2156

    
2157
int avpicture_fill(AVPicture *picture, uint8_t *ptr,
2158
                   int pix_fmt, int width, int height);
2159
int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
2160
                     unsigned char *dest, int dest_size);
2161
int avpicture_get_size(int pix_fmt, int width, int height);
2162
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
2163
const char *avcodec_get_pix_fmt_name(int pix_fmt);
2164
void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
2165
enum PixelFormat avcodec_get_pix_fmt(const char* name);
2166
unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat p);
2167

    
2168
#define FF_LOSS_RESOLUTION  0x0001 /* loss due to resolution change */
2169
#define FF_LOSS_DEPTH       0x0002 /* loss due to color depth change */
2170
#define FF_LOSS_COLORSPACE  0x0004 /* loss due to color space conversion */
2171
#define FF_LOSS_ALPHA       0x0008 /* loss of alpha bits */
2172
#define FF_LOSS_COLORQUANT  0x0010 /* loss due to color quantization */
2173
#define FF_LOSS_CHROMA      0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
2174

    
2175
int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
2176
                             int has_alpha);
2177
int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
2178
                              int has_alpha, int *loss_ptr);
2179

    
2180
#define FF_ALPHA_TRANSP       0x0001 /* image has some totally transparent pixels */
2181
#define FF_ALPHA_SEMI_TRANSP  0x0002 /* image has some transparent pixels */
2182
int img_get_alpha_info(const AVPicture *src,
2183
                       int pix_fmt, int width, int height);
2184

    
2185
/* convert among pixel formats */
2186
int img_convert(AVPicture *dst, int dst_pix_fmt,
2187
                const AVPicture *src, int pix_fmt, 
2188
                int width, int height);
2189

    
2190
/* deinterlace a picture */
2191
int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
2192
                          int pix_fmt, int width, int height);
2193

    
2194
/* external high level API */
2195

    
2196
extern AVCodec *first_avcodec;
2197

    
2198
/* returns LIBAVCODEC_VERSION_INT constant */
2199
unsigned avcodec_version(void);
2200
/* returns LIBAVCODEC_BUILD constant */
2201
unsigned avcodec_build(void);
2202
void avcodec_init(void);
2203

    
2204
void register_avcodec(AVCodec *format);
2205
AVCodec *avcodec_find_encoder(enum CodecID id);
2206
AVCodec *avcodec_find_encoder_by_name(const char *name);
2207
AVCodec *avcodec_find_decoder(enum CodecID id);
2208
AVCodec *avcodec_find_decoder_by_name(const char *name);
2209
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
2210

    
2211
void avcodec_get_context_defaults(AVCodecContext *s);
2212
AVCodecContext *avcodec_alloc_context(void);
2213
void avcodec_get_frame_defaults(AVFrame *pic);
2214
AVFrame *avcodec_alloc_frame(void);
2215

    
2216
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
2217
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
2218
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
2219
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
2220
int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h);
2221
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
2222

    
2223
int avcodec_thread_init(AVCodecContext *s, int thread_count);
2224
void avcodec_thread_free(AVCodecContext *s);
2225
int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2226
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2227
//FIXME func typedef
2228

    
2229
/**
2230
 * opens / inits the AVCodecContext.
2231
 * not thread save!
2232
 */
2233
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
2234

    
2235
int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples, 
2236
                         int *frame_size_ptr,
2237
                         uint8_t *buf, int buf_size);
2238
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture, 
2239
                         int *got_picture_ptr,
2240
                         uint8_t *buf, int buf_size);
2241
int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
2242
                            int *got_sub_ptr,
2243
                            const uint8_t *buf, int buf_size);
2244
int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata, 
2245
                        int *data_size_ptr,
2246
                        uint8_t *buf, int buf_size);
2247
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
2248
                         const short *samples);
2249
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
2250
                         const AVFrame *pict);
2251
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
2252
                            const AVSubtitle *sub);
2253

    
2254
int avcodec_close(AVCodecContext *avctx);
2255

    
2256
void avcodec_register_all(void);
2257

    
2258
void avcodec_flush_buffers(AVCodecContext *avctx);
2259

    
2260
void avcodec_default_free_buffers(AVCodecContext *s);
2261

    
2262
/* misc usefull functions */
2263

    
2264
/**
2265
 * returns a single letter to describe the picture type
2266
 */
2267
char av_get_pict_type_char(int pict_type);
2268

    
2269
/**
2270
 * reduce a fraction.
2271
 * this is usefull for framerate calculations
2272
 * @param max the maximum allowed for dst_nom & dst_den
2273
 * @return 1 if exact, 0 otherwise
2274
 */
2275
int av_reduce(int *dst_nom, int *dst_den, int64_t nom, int64_t den, int64_t max);
2276

    
2277
/**
2278
 * rescale a 64bit integer with rounding to nearest.
2279
 * a simple a*b/c isn't possible as it can overflow
2280
 */
2281
int64_t av_rescale(int64_t a, int64_t b, int64_t c);
2282

    
2283
/**
2284
 * rescale a 64bit integer with specified rounding.
2285
 * a simple a*b/c isn't possible as it can overflow
2286
 */
2287
int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding);
2288

    
2289
/**
2290
 * rescale a 64bit integer by 2 rational numbers.
2291
 */
2292
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq);
2293

    
2294
/* frame parsing */
2295
typedef struct AVCodecParserContext {
2296
    void *priv_data;
2297
    struct AVCodecParser *parser;
2298
    int64_t frame_offset; /* offset of the current frame */
2299
    int64_t cur_offset; /* current offset 
2300
                           (incremented by each av_parser_parse()) */
2301
    int64_t last_frame_offset; /* offset of the last frame */
2302
    /* video info */
2303
    int pict_type; /* XXX: put it back in AVCodecContext */
2304
    int repeat_pict; /* XXX: put it back in AVCodecContext */
2305
    int64_t pts;     /* pts of the current frame */
2306
    int64_t dts;     /* dts of the current frame */
2307

    
2308
    /* private data */
2309
    int64_t last_pts;
2310
    int64_t last_dts;
2311
    int fetch_timestamp;
2312

    
2313
#define AV_PARSER_PTS_NB 4
2314
    int cur_frame_start_index;
2315
    int64_t cur_frame_offset[AV_PARSER_PTS_NB];
2316
    int64_t cur_frame_pts[AV_PARSER_PTS_NB];
2317
    int64_t cur_frame_dts[AV_PARSER_PTS_NB];
2318
} AVCodecParserContext;
2319

    
2320
typedef struct AVCodecParser {
2321
    int codec_ids[5]; /* several codec IDs are permitted */
2322
    int priv_data_size;
2323
    int (*parser_init)(AVCodecParserContext *s);
2324
    int (*parser_parse)(AVCodecParserContext *s, 
2325
                        AVCodecContext *avctx,
2326
                        uint8_t **poutbuf, int *poutbuf_size, 
2327
                        const uint8_t *buf, int buf_size);
2328
    void (*parser_close)(AVCodecParserContext *s);
2329
    int (*split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size);
2330
    struct AVCodecParser *next;
2331
} AVCodecParser;
2332

    
2333
extern AVCodecParser *av_first_parser;
2334

    
2335
void av_register_codec_parser(AVCodecParser *parser);
2336
AVCodecParserContext *av_parser_init(int codec_id);
2337
int av_parser_parse(AVCodecParserContext *s, 
2338
                    AVCodecContext *avctx,
2339
                    uint8_t **poutbuf, int *poutbuf_size, 
2340
                    const uint8_t *buf, int buf_size,
2341
                    int64_t pts, int64_t dts);
2342
int av_parser_change(AVCodecParserContext *s,
2343
                     AVCodecContext *avctx,
2344
                     uint8_t **poutbuf, int *poutbuf_size, 
2345
                     const uint8_t *buf, int buf_size, int keyframe);
2346
void av_parser_close(AVCodecParserContext *s);
2347

    
2348
extern AVCodecParser mpegvideo_parser;
2349
extern AVCodecParser mpeg4video_parser;
2350
extern AVCodecParser h261_parser;
2351
extern AVCodecParser h263_parser;
2352
extern AVCodecParser h264_parser;
2353
extern AVCodecParser mjpeg_parser;
2354
extern AVCodecParser pnm_parser;
2355
extern AVCodecParser mpegaudio_parser;
2356
extern AVCodecParser ac3_parser;
2357
extern AVCodecParser dvdsub_parser;
2358

    
2359
/* memory */
2360
void *av_malloc(unsigned int size);
2361
void *av_mallocz(unsigned int size);
2362
void *av_realloc(void *ptr, unsigned int size);
2363
void av_free(void *ptr);
2364
char *av_strdup(const char *s);
2365
void av_freep(void *ptr);
2366
void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
2367
/* for static data only */
2368
/* call av_free_static to release all staticaly allocated tables */
2369
void av_free_static(void);
2370
void *av_mallocz_static(unsigned int size);
2371
void *av_realloc_static(void *ptr, unsigned int size);
2372

    
2373
/* add by bero : in adx.c */
2374
int is_adx(const unsigned char *buf,size_t bufsize);
2375

    
2376
void img_copy(AVPicture *dst, const AVPicture *src,
2377
              int pix_fmt, int width, int height);
2378

    
2379
/* av_log API */
2380

    
2381
#include <stdarg.h>
2382

    
2383
#define AV_LOG_QUIET -1
2384
#define AV_LOG_ERROR 0
2385
#define AV_LOG_INFO 1
2386
#define AV_LOG_DEBUG 2
2387

    
2388
#ifdef __GNUC__
2389
extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
2390
#else
2391
extern void av_log(void*, int level, const char *fmt, ...);
2392
#endif
2393

    
2394
extern void av_vlog(void*, int level, const char *fmt, va_list);
2395
extern int av_log_get_level(void);
2396
extern void av_log_set_level(int);
2397
extern void av_log_set_callback(void (*)(void*, int, const char*, va_list));
2398

    
2399
/* endian macros */
2400
#if !defined(BE_16) || !defined(BE_32) || !defined(LE_16) || !defined(LE_32)
2401
#define BE_16(x)  ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
2402
#define BE_32(x)  ((((uint8_t*)(x))[0] << 24) | \
2403
                   (((uint8_t*)(x))[1] << 16) | \
2404
                   (((uint8_t*)(x))[2] << 8) | \
2405
                    ((uint8_t*)(x))[3])
2406
#define LE_16(x)  ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
2407
#define LE_32(x)  ((((uint8_t*)(x))[3] << 24) | \
2408
                   (((uint8_t*)(x))[2] << 16) | \
2409
                   (((uint8_t*)(x))[1] << 8) | \
2410
                    ((uint8_t*)(x))[0])
2411
#endif
2412

    
2413
extern unsigned int av_xiphlacing(unsigned char *s, unsigned int v);
2414

    
2415
#ifdef __cplusplus
2416
}
2417
#endif
2418

    
2419
#endif /* AVCODEC_H */