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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         "CVS"
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#define LIBAVCODEC_BUILD       4759
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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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    CODEC_ID_ADPCM_YAMAHA,
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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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enum AVDiscard{
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//we leave some space between them for extensions (drop some keyframes for intra only or drop just some bidir frames)
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    AVDISCARD_NONE   =-16, ///< discard nothing
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    AVDISCARD_DEFAULT=  0, ///< discard useless packets like 0 size packets in avi
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    AVDISCARD_NONREF =  8, ///< discard all non reference
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    AVDISCARD_BIDIR  = 16, ///< discard all bidirectional frames
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    AVDISCARD_NONKEY = 32, ///< discard all frames except keyframes
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    AVDISCARD_ALL    = 48, ///< discard all
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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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/**
367
 * Codec uses get_buffer() for allocating buffers.
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 * direct rendering method 1
369
 */
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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
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   used */
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#define CODEC_CAP_PARSE_ONLY      0x0004
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#define CODEC_CAP_TRUNCATED       0x0008
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/* 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.
379
 * if this is not set, the codec is guranteed to never be feeded with NULL data
380
 */
381
#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
400
#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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407
/**
408
 * Pan Scan area.
409
 * this specifies the area which should be displayed. Note there may be multiple such areas for one frame
410
 */
411
typedef struct AVPanScan{
412
    /**
413
     * id.
414
     * - encoding: set by user.
415
     * - decoding: set by lavc
416
     */
417
    int id;
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419
    /**
420
     * width and height in 1/16 pel
421
     * - encoding: set by user.
422
     * - decoding: set by lavc
423
     */
424
    int width;
425
    int height;
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427
    /**
428
     * position of the top left corner in 1/16 pel for up to 3 fields/frames.
429
     * - encoding: set by user.
430
     * - decoding: set by lavc
431
     */
432
    int16_t position[3][2];
433
}AVPanScan;
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435
#define FF_COMMON_FRAME \
436
    /**\
437
     * pointer to the picture planes.\
438
     * this might be different from the first allocated byte\
439
     * - encoding: \
440
     * - decoding: \
441
     */\
442
    uint8_t *data[4];\
443
    int linesize[4];\
444
    /**\
445
     * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
446
     * this isn't used by lavc unless the default get/release_buffer() is used\
447
     * - encoding: \
448
     * - decoding: \
449
     */\
450
    uint8_t *base[4];\
451
    /**\
452
     * 1 -> keyframe, 0-> not\
453
     * - encoding: set by lavc\
454
     * - decoding: set by lavc\
455
     */\
456
    int key_frame;\
457
\
458
    /**\
459
     * picture type of the frame, see ?_TYPE below.\
460
     * - encoding: set by lavc for coded_picture (and set by user for input)\
461
     * - decoding: set by lavc\
462
     */\
463
    int pict_type;\
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\
465
    /**\
466
     * presentation timestamp in time_base units (time when frame should be shown to user)\
467
     * if AV_NOPTS_VALUE then frame_rate = 1/time_base will be assumed\
468
     * - encoding: MUST be set by user\
469
     * - decoding: set by lavc\
470
     */\
471
    int64_t pts;\
472
\
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    /**\
474
     * picture number in bitstream order.\
475
     * - encoding: set by\
476
     * - decoding: set by lavc\
477
     */\
478
    int coded_picture_number;\
479
    /**\
480
     * picture number in display order.\
481
     * - encoding: set by\
482
     * - decoding: set by lavc\
483
     */\
484
    int display_picture_number;\
485
\
486
    /**\
487
     * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
488
     * - encoding: set by lavc for coded_picture (and set by user for input)\
489
     * - decoding: set by lavc\
490
     */\
491
    int quality; \
492
\
493
    /**\
494
     * buffer age (1->was last buffer and dint change, 2->..., ...).\
495
     * set to INT_MAX if the buffer has not been used yet \
496
     * - encoding: unused\
497
     * - decoding: MUST be set by get_buffer()\
498
     */\
499
    int age;\
500
\
501
    /**\
502
     * is this picture used as reference\
503
     * - encoding: unused\
504
     * - decoding: set by lavc (before get_buffer() call))\
505
     */\
506
    int reference;\
507
\
508
    /**\
509
     * QP table\
510
     * - encoding: unused\
511
     * - decoding: set by lavc\
512
     */\
513
    int8_t *qscale_table;\
514
    /**\
515
     * QP store stride\
516
     * - encoding: unused\
517
     * - decoding: set by lavc\
518
     */\
519
    int qstride;\
520
\
521
    /**\
522
     * mbskip_table[mb]>=1 if MB didnt change\
523
     * stride= mb_width = (width+15)>>4\
524
     * - encoding: unused\
525
     * - decoding: set by lavc\
526
     */\
527
    uint8_t *mbskip_table;\
528
\
529
    /**\
530
     * Motion vector table.\
531
     * @code\
532
     * example:\
533
     * int mv_sample_log2= 4 - motion_subsample_log2;\
534
     * int mb_width= (width+15)>>4;\
535
     * int mv_stride= (mb_width << mv_sample_log2) + 1;\
536
     * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y];\
537
     * @endcode\
538
     * - encoding: set by user\
539
     * - decoding: set by lavc\
540
     */\
541
    int16_t (*motion_val[2])[2];\
542
\
543
    /**\
544
     * Macroblock type table\
545
     * mb_type_base + mb_width + 2\
546
     * - encoding: set by user\
547
     * - decoding: set by lavc\
548
     */\
549
    uint32_t *mb_type;\
550
\
551
    /**\
552
     * log2 of the size of the block which a single vector in motion_val represents: \
553
     * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2)\
554
     * - encoding: unused\
555
     * - decoding: set by lavc\
556
     */\
557
    uint8_t motion_subsample_log2;\
558
\
559
    /**\
560
     * for some private data of the user\
561
     * - encoding: unused\
562
     * - decoding: set by user\
563
     */\
564
    void *opaque;\
565
\
566
    /**\
567
     * error\
568
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
569
     * - decoding: unused\
570
     */\
571
    uint64_t error[4];\
572
\
573
    /**\
574
     * type of the buffer (to keep track of who has to dealloc data[*])\
575
     * - encoding: set by the one who allocs it\
576
     * - decoding: set by the one who allocs it\
577
     * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
578
     */\
579
    int type;\
580
    \
581
    /**\
582
     * when decoding, this signal how much the picture must be delayed.\
583
     * extra_delay = repeat_pict / (2*fps)\
584
     * - encoding: unused\
585
     * - decoding: set by lavc\
586
     */\
587
    int repeat_pict;\
588
    \
589
    /**\
590
     * \
591
     */\
592
    int qscale_type;\
593
    \
594
    /**\
595
     * The content of the picture is interlaced.\
596
     * - encoding: set by user\
597
     * - decoding: set by lavc (default 0)\
598
     */\
599
    int interlaced_frame;\
600
    \
601
    /**\
602
     * if the content is interlaced, is top field displayed first.\
603
     * - encoding: set by user\
604
     * - decoding: set by lavc\
605
     */\
606
    int top_field_first;\
607
    \
608
    /**\
609
     * Pan scan.\
610
     * - encoding: set by user\
611
     * - decoding: set by lavc\
612
     */\
613
    AVPanScan *pan_scan;\
614
    \
615
    /**\
616
     * tell user application that palette has changed from previous frame.\
617
     * - encoding: ??? (no palette-enabled encoder yet)\
618
     * - decoding: set by lavc (default 0)\
619
     */\
620
    int palette_has_changed;\
621
    \
622
    /**\
623
     * Codec suggestion on buffer type if != 0\
624
     * - encoding: unused\
625
     * - decoding: set by lavc (before get_buffer() call))\
626
     */\
627
    int buffer_hints;\
628
\
629
    /**\
630
     * DCT coeffitients\
631
     * - encoding: unused\
632
     * - decoding: set by lavc\
633
     */\
634
    short *dct_coeff;\
635
\
636
    /**\
637
     * Motion referece frame index\
638
     * - encoding: set by user\
639
     * - decoding: set by lavc\
640
     */\
641
    int8_t *ref_index[2];
642

    
643
#define FF_QSCALE_TYPE_MPEG1        0
644
#define FF_QSCALE_TYPE_MPEG2        1
645

    
646
#define FF_BUFFER_TYPE_INTERNAL 1
647
#define FF_BUFFER_TYPE_USER     2 ///< Direct rendering buffers (image is (de)allocated by user)
648
#define FF_BUFFER_TYPE_SHARED   4 ///< buffer from somewhere else, don't dealloc image (data/base), all other tables are not shared
649
#define FF_BUFFER_TYPE_COPY     8 ///< just a (modified) copy of some other buffer, don't dealloc anything
650

    
651

    
652
#define FF_I_TYPE 1 // Intra
653
#define FF_P_TYPE 2 // Predicted
654
#define FF_B_TYPE 3 // Bi-dir predicted
655
#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
656
#define FF_SI_TYPE 5
657
#define FF_SP_TYPE 6
658

    
659
#define FF_BUFFER_HINTS_VALID    0x01 // Buffer hints value is meaningful (if 0 ignore)
660
#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
661
#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
662
#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
663

    
664
/**
665
 * Audio Video Frame.
666
 */
667
typedef struct AVFrame {
668
    FF_COMMON_FRAME
669
} AVFrame;
670

    
671
#define DEFAULT_FRAME_RATE_BASE 1001000
672

    
673
/**
674
 * Used by av_log
675
 */
676
typedef struct AVCLASS AVClass;
677
struct AVCLASS {
678
    const char* class_name;
679
    const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext
680
                                        or AVFormatContext, which begin with an AVClass.
681
                                        Needed because av_log is in libavcodec and has no visibility
682
                                        of AVIn/OutputFormat */
683
};
684

    
685
/**
686
 * main external api structure.
687
 */
688
typedef struct AVCodecContext {
689
    /**
690
     * Info on struct for av_log
691
     * - set by avcodec_alloc_context
692
     */
693
    AVClass *av_class;
694
    /**
695
     * the average bitrate.
696
     * - encoding: set by user. unused for constant quantizer encoding
697
     * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream 
698
     */
699
    int bit_rate;
700

    
701
    /**
702
     * number of bits the bitstream is allowed to diverge from the reference.
703
     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
704
     * - encoding: set by user. unused for constant quantizer encoding
705
     * - decoding: unused
706
     */
707
    int bit_rate_tolerance; 
708

    
709
    /**
710
     * CODEC_FLAG_*.
711
     * - encoding: set by user.
712
     * - decoding: set by user.
713
     */
714
    int flags;
715

    
716
    /**
717
     * some codecs needs additionnal format info. It is stored here
718
     * - encoding: set by user. 
719
     * - decoding: set by lavc. (FIXME is this ok?)
720
     */
721
    int sub_id;
722

    
723
    /**
724
     * motion estimation algorithm used for video coding.
725
     * - encoding: MUST be set by user.
726
     * - decoding: unused
727
     */
728
    int me_method;
729

    
730
    /**
731
     * some codecs need / can use extra-data like huffman tables.
732
     * mjpeg: huffman tables
733
     * rv10: additional flags
734
     * mpeg4: global headers (they can be in the bitstream or here)
735
     * the allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
736
     * then extradata_size to avoid prolems if its read with the bitstream reader
737
     * - encoding: set/allocated/freed by lavc.
738
     * - decoding: set/allocated/freed by user.
739
     */
740
    void *extradata;
741
    int extradata_size;
742
    
743
    /* video only */
744
    /**
745
     * time base in which the timestamps are specified.
746
     * - encoding: MUST be set by user
747
     * - decoding: set by lavc.
748
     */
749
    AVRational time_base;
750
    
751
    /**
752
     * picture width / height.
753
     * - encoding: MUST be set by user. 
754
     * - decoding: set by lavc.
755
     * Note, for compatibility its possible to set this instead of 
756
     * coded_width/height before decoding
757
     */
758
    int width, height;
759
    
760
#define FF_ASPECT_EXTENDED 15
761

    
762
    /**
763
     * the number of pictures in a group of pitures, or 0 for intra_only.
764
     * - encoding: set by user.
765
     * - decoding: unused
766
     */
767
    int gop_size;
768

    
769
    /**
770
     * pixel format, see PIX_FMT_xxx.
771
     * - encoding: set by user.
772
     * - decoding: set by lavc.
773
     */
774
    enum PixelFormat pix_fmt;
775
 
776
    /**
777
     * Frame rate emulation. If not zero lower layer (i.e. format handler) 
778
     * has to read frames at native frame rate.
779
     * - encoding: set by user.
780
     * - decoding: unused.
781
     */
782
    int rate_emu;
783
       
784
    /**
785
     * if non NULL, 'draw_horiz_band' is called by the libavcodec
786
     * decoder to draw an horizontal band. It improve cache usage. Not
787
     * all codecs can do that. You must check the codec capabilities
788
     * before
789
     * - encoding: unused
790
     * - decoding: set by user.
791
     * @param height the height of the slice
792
     * @param y the y position of the slice
793
     * @param type 1->top field, 2->bottom field, 3->frame
794
     * @param offset offset into the AVFrame.data from which the slice should be read
795
     */
796
    void (*draw_horiz_band)(struct AVCodecContext *s,
797
                            const AVFrame *src, int offset[4],
798
                            int y, int type, int height);
799

    
800
    /* audio only */
801
    int sample_rate; ///< samples per sec 
802
    int channels;
803

    
804
    /**
805
     * audio sample format.
806
     * - encoding: set by user.
807
     * - decoding: set by lavc.
808
     */
809
    enum SampleFormat sample_fmt;  ///< sample format, currenly unused 
810

    
811
    /* the following data should not be initialized */
812
    /**
813
     * samples per packet. initialized when calling 'init' 
814
     */
815
    int frame_size;
816
    int frame_number;   ///< audio or video frame number 
817
    int real_pict_num;  ///< returns the real picture number of previous encoded frame 
818
    
819
    /**
820
     * number of frames the decoded output will be delayed relative to 
821
     * the encoded input.
822
     * - encoding: set by lavc.
823
     * - decoding: unused
824
     */
825
    int delay;
826
    
827
    /* - encoding parameters */
828
    float qcompress;  ///< amount of qscale change between easy & hard scenes (0.0-1.0)
829
    float qblur;      ///< amount of qscale smoothing over time (0.0-1.0) 
830
    
831
    /**
832
     * minimum quantizer.
833
     * - encoding: set by user.
834
     * - decoding: unused
835
     */
836
    int qmin;
837

    
838
    /**
839
     * maximum quantizer.
840
     * - encoding: set by user.
841
     * - decoding: unused
842
     */
843
    int qmax;
844

    
845
    /**
846
     * maximum quantizer difference etween frames.
847
     * - encoding: set by user.
848
     * - decoding: unused
849
     */
850
    int max_qdiff;
851

    
852
    /**
853
     * maximum number of b frames between non b frames.
854
     * note: the output will be delayed by max_b_frames+1 relative to the input
855
     * - encoding: set by user.
856
     * - decoding: unused
857
     */
858
    int max_b_frames;
859

    
860
    /**
861
     * qscale factor between ip and b frames.
862
     * - encoding: set by user.
863
     * - decoding: unused
864
     */
865
    float b_quant_factor;
866
    
867
    /** obsolete FIXME remove */
868
    int rc_strategy;
869
    int b_frame_strategy;
870

    
871
    /**
872
     * hurry up amount.
873
     * deprecated in favor of skip_idct and skip_frame
874
     * - encoding: unused
875
     * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
876
     */
877
    int hurry_up;
878
    
879
    struct AVCodec *codec;
880
    
881
    void *priv_data;
882

    
883
    /* unused, FIXME remove*/
884
    int rtp_mode;
885
    
886
    int rtp_payload_size;   /* The size of the RTP payload: the coder will  */
887
                            /* do it's best to deliver a chunk with size    */
888
                            /* below rtp_payload_size, the chunk will start */
889
                            /* with a start code on some codecs like H.263  */
890
                            /* This doesn't take account of any particular  */
891
                            /* headers inside the transmited RTP payload    */
892

    
893
    
894
    /* The RTP callback: This function is called   */
895
    /* every time the encoder has a packet to send */
896
    /* Depends on the encoder if the data starts   */
897
    /* with a Start Code (it should) H.263 does.   */
898
    /* mb_nb contains the number of macroblocks    */
899
    /* encoded in the RTP payload                  */
900
    void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb); 
901

    
902
    /* statistics, used for 2-pass encoding */
903
    int mv_bits;
904
    int header_bits;
905
    int i_tex_bits;
906
    int p_tex_bits;
907
    int i_count;
908
    int p_count;
909
    int skip_count;
910
    int misc_bits;
911
    
912
    /**
913
     * number of bits used for the previously encoded frame.
914
     * - encoding: set by lavc
915
     * - decoding: unused
916
     */
917
    int frame_bits;
918

    
919
    /**
920
     * private data of the user, can be used to carry app specific stuff.
921
     * - encoding: set by user
922
     * - decoding: set by user
923
     */
924
    void *opaque;
925

    
926
    char codec_name[32];
927
    enum CodecType codec_type; /* see CODEC_TYPE_xxx */
928
    enum CodecID codec_id; /* see CODEC_ID_xxx */
929
    
930
    /**
931
     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
932
     * this is used to workaround some encoder bugs
933
     * - encoding: set by user, if not then the default based on codec_id will be used
934
     * - decoding: set by user, will be converted to upper case by lavc during init
935
     */
936
    unsigned int codec_tag;
937
    
938
    /**
939
     * workaround bugs in encoders which sometimes cannot be detected automatically.
940
     * - encoding: set by user
941
     * - decoding: set by user
942
     */
943
    int workaround_bugs;
944
#define FF_BUG_AUTODETECT       1  ///< autodetection
945
#define FF_BUG_OLD_MSMPEG4      2
946
#define FF_BUG_XVID_ILACE       4
947
#define FF_BUG_UMP4             8
948
#define FF_BUG_NO_PADDING       16
949
#define FF_BUG_AMV              32
950
#define FF_BUG_AC_VLC           0  ///< will be removed, libavcodec can now handle these non compliant files by default
951
#define FF_BUG_QPEL_CHROMA      64
952
#define FF_BUG_STD_QPEL         128
953
#define FF_BUG_QPEL_CHROMA2     256
954
#define FF_BUG_DIRECT_BLOCKSIZE 512
955
#define FF_BUG_EDGE             1024
956
#define FF_BUG_HPEL_CHROMA      2048
957
#define FF_BUG_DC_CLIP          4096
958
#define FF_BUG_MS               8192 ///< workaround various bugs in microsofts broken decoders
959
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
960
        
961
    /**
962
     * luma single coeff elimination threshold.
963
     * - encoding: set by user
964
     * - decoding: unused
965
     */
966
    int luma_elim_threshold;
967
    
968
    /**
969
     * chroma single coeff elimination threshold.
970
     * - encoding: set by user
971
     * - decoding: unused
972
     */
973
    int chroma_elim_threshold;
974
    
975
    /**
976
     * strictly follow the std (MPEG4, ...).
977
     * - encoding: set by user
978
     * - decoding: unused
979
     */
980
    int strict_std_compliance;
981
#define FF_COMPLIANCE_VERY_STRICT   2 ///< strictly conform to a older more strict version of the spec or reference software
982
#define FF_COMPLIANCE_STRICT        1 ///< strictly conform to all the things in the spec no matter what consequences
983
#define FF_COMPLIANCE_NORMAL        0
984
#define FF_COMPLIANCE_INOFFICIAL   -1 ///< allow inofficial extensions
985
#define FF_COMPLIANCE_EXPERIMENTAL -2 ///< allow non standarized experimental things
986

    
987
    /**
988
     * qscale offset between ip and b frames.
989
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
990
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
991
     * - encoding: set by user.
992
     * - decoding: unused
993
     */
994
    float b_quant_offset;
995
    
996
    /**
997
     * error resilience higher values will detect more errors but may missdetect
998
     * some more or less valid parts as errors.
999
     * - encoding: unused
1000
     * - decoding: set by user
1001
     */
1002
    int error_resilience;
1003
#define FF_ER_CAREFULL        1
1004
#define FF_ER_COMPLIANT       2
1005
#define FF_ER_AGGRESSIVE      3
1006
#define FF_ER_VERY_AGGRESSIVE 4
1007
    
1008
    /**
1009
     * called at the beginning of each frame to get a buffer for it.
1010
     * if pic.reference is set then the frame will be read later by lavc
1011
     * avcodec_align_dimensions() should be used to find the required width and
1012
     * height, as they normally need to be rounded up to the next multiple of 16
1013
     * - encoding: unused
1014
     * - decoding: set by lavc, user can override
1015
     */
1016
    int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
1017
    
1018
    /**
1019
     * called to release buffers which where allocated with get_buffer.
1020
     * a released buffer can be reused in get_buffer()
1021
     * pic.data[*] must be set to NULL
1022
     * - encoding: unused
1023
     * - decoding: set by lavc, user can override
1024
     */
1025
    void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
1026

    
1027
    /**
1028
     * if 1 the stream has a 1 frame delay during decoding.
1029
     * - encoding: set by lavc
1030
     * - decoding: set by lavc
1031
     */
1032
    int has_b_frames;
1033

    
1034
    /**
1035
     * number of bytes per packet if constant and known or 0
1036
     * used by some WAV based audio codecs
1037
     */
1038
    int block_align;
1039
    
1040
    int parse_only; /* - decoding only: if true, only parsing is done
1041
                       (function avcodec_parse_frame()). The frame
1042
                       data is returned. Only MPEG codecs support this now. */
1043
    
1044
    /**
1045
     * 0-> h263 quant 1-> mpeg quant.
1046
     * - encoding: set by user.
1047
     * - decoding: unused
1048
     */
1049
    int mpeg_quant;
1050
    
1051
    /**
1052
     * pass1 encoding statistics output buffer.
1053
     * - encoding: set by lavc
1054
     * - decoding: unused
1055
     */
1056
    char *stats_out;
1057
    
1058
    /**
1059
     * pass2 encoding statistics input buffer.
1060
     * concatenated stuff from stats_out of pass1 should be placed here
1061
     * - encoding: allocated/set/freed by user
1062
     * - decoding: unused
1063
     */
1064
    char *stats_in;
1065
    
1066
    /**
1067
     * ratecontrol qmin qmax limiting method.
1068
     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
1069
     * - encoding: set by user.
1070
     * - decoding: unused
1071
     */
1072
    float rc_qsquish;
1073

    
1074
    float rc_qmod_amp;
1075
    int rc_qmod_freq;
1076
    
1077
    /**
1078
     * ratecontrol override, see RcOverride.
1079
     * - encoding: allocated/set/freed by user.
1080
     * - decoding: unused
1081
     */
1082
    RcOverride *rc_override;
1083
    int rc_override_count;
1084
    
1085
    /**
1086
     * rate control equation.
1087
     * - encoding: set by user
1088
     * - decoding: unused
1089
     */
1090
    char *rc_eq;
1091
    
1092
    /**
1093
     * maximum bitrate.
1094
     * - encoding: set by user.
1095
     * - decoding: unused
1096
     */
1097
    int rc_max_rate;
1098
    
1099
    /**
1100
     * minimum bitrate.
1101
     * - encoding: set by user.
1102
     * - decoding: unused
1103
     */
1104
    int rc_min_rate;
1105
    
1106
    /**
1107
     * decoder bitstream buffer size.
1108
     * - encoding: set by user.
1109
     * - decoding: unused
1110
     */
1111
    int rc_buffer_size;
1112
    float rc_buffer_aggressivity;
1113

    
1114
    /**
1115
     * qscale factor between p and i frames.
1116
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1117
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
1118
     * - encoding: set by user.
1119
     * - decoding: unused
1120
     */
1121
    float i_quant_factor;
1122
    
1123
    /**
1124
     * qscale offset between p and i frames.
1125
     * - encoding: set by user.
1126
     * - decoding: unused
1127
     */
1128
    float i_quant_offset;
1129
    
1130
    /**
1131
     * initial complexity for pass1 ratecontrol.
1132
     * - encoding: set by user.
1133
     * - decoding: unused
1134
     */
1135
    float rc_initial_cplx;
1136

    
1137
    /**
1138
     * dct algorithm, see FF_DCT_* below.
1139
     * - encoding: set by user
1140
     * - decoding: unused
1141
     */
1142
    int dct_algo;
1143
#define FF_DCT_AUTO    0
1144
#define FF_DCT_FASTINT 1
1145
#define FF_DCT_INT     2
1146
#define FF_DCT_MMX     3
1147
#define FF_DCT_MLIB    4
1148
#define FF_DCT_ALTIVEC 5
1149
#define FF_DCT_FAAN    6
1150
    
1151
    /**
1152
     * luminance masking (0-> disabled).
1153
     * - encoding: set by user
1154
     * - decoding: unused
1155
     */
1156
    float lumi_masking;
1157
    
1158
    /**
1159
     * temporary complexity masking (0-> disabled).
1160
     * - encoding: set by user
1161
     * - decoding: unused
1162
     */
1163
    float temporal_cplx_masking;
1164
    
1165
    /**
1166
     * spatial complexity masking (0-> disabled).
1167
     * - encoding: set by user
1168
     * - decoding: unused
1169
     */
1170
    float spatial_cplx_masking;
1171
    
1172
    /**
1173
     * p block masking (0-> disabled).
1174
     * - encoding: set by user
1175
     * - decoding: unused
1176
     */
1177
    float p_masking;
1178

    
1179
    /**
1180
     * darkness masking (0-> disabled).
1181
     * - encoding: set by user
1182
     * - decoding: unused
1183
     */
1184
    float dark_masking;
1185
    
1186
    
1187
    /* for binary compatibility */
1188
    int unused;
1189
    
1190
    /**
1191
     * idct algorithm, see FF_IDCT_* below.
1192
     * - encoding: set by user
1193
     * - decoding: set by user
1194
     */
1195
    int idct_algo;
1196
#define FF_IDCT_AUTO         0
1197
#define FF_IDCT_INT          1
1198
#define FF_IDCT_SIMPLE       2
1199
#define FF_IDCT_SIMPLEMMX    3
1200
#define FF_IDCT_LIBMPEG2MMX  4
1201
#define FF_IDCT_PS2          5
1202
#define FF_IDCT_MLIB         6
1203
#define FF_IDCT_ARM          7
1204
#define FF_IDCT_ALTIVEC      8
1205
#define FF_IDCT_SH4          9
1206
#define FF_IDCT_SIMPLEARM    10
1207
#define FF_IDCT_H264         11
1208
#define FF_IDCT_VP3          12
1209
#define FF_IDCT_IPP          13
1210

    
1211
    /**
1212
     * slice count.
1213
     * - encoding: set by lavc
1214
     * - decoding: set by user (or 0)
1215
     */
1216
    int slice_count;
1217
    /**
1218
     * slice offsets in the frame in bytes.
1219
     * - encoding: set/allocated by lavc
1220
     * - decoding: set/allocated by user (or NULL)
1221
     */
1222
    int *slice_offset;
1223

    
1224
    /**
1225
     * error concealment flags.
1226
     * - encoding: unused
1227
     * - decoding: set by user
1228
     */
1229
    int error_concealment;
1230
#define FF_EC_GUESS_MVS   1
1231
#define FF_EC_DEBLOCK     2
1232

    
1233
    /**
1234
     * dsp_mask could be add used to disable unwanted CPU features
1235
     * CPU features (i.e. MMX, SSE. ...)
1236
     *
1237
     * with FORCE flag you may instead enable given CPU features
1238
     * (Dangerous: usable in case of misdetection, improper usage however will
1239
     * result into program crash)
1240
     */
1241
    unsigned dsp_mask;
1242
#define FF_MM_FORCE        0x80000000 /* force usage of selected flags (OR) */
1243
    /* lower 16 bits - CPU features */
1244
#ifdef HAVE_MMX
1245
#define FF_MM_MMX        0x0001 /* standard MMX */
1246
#define FF_MM_3DNOW        0x0004 /* AMD 3DNOW */
1247
#define FF_MM_MMXEXT        0x0002 /* SSE integer functions or AMD MMX ext */
1248
#define FF_MM_SSE        0x0008 /* SSE functions */
1249
#define FF_MM_SSE2        0x0010 /* PIV SSE2 functions */
1250
#define FF_MM_3DNOWEXT        0x0020 /* AMD 3DNowExt */
1251
#endif /* HAVE_MMX */
1252
#ifdef HAVE_IWMMXT
1253
#define FF_MM_IWMMXT        0x0100 /* XScale IWMMXT */
1254
#endif /* HAVE_IWMMXT */
1255

    
1256
    /**
1257
     * bits per sample/pixel from the demuxer (needed for huffyuv).
1258
     * - encoding: set by lavc
1259
     * - decoding: set by user
1260
     */
1261
     int bits_per_sample;
1262
    
1263
    /**
1264
     * prediction method (needed for huffyuv).
1265
     * - encoding: set by user
1266
     * - decoding: unused
1267
     */
1268
     int prediction_method;
1269
#define FF_PRED_LEFT   0
1270
#define FF_PRED_PLANE  1
1271
#define FF_PRED_MEDIAN 2
1272
    
1273
    /**
1274
     * sample aspect ratio (0 if unknown).
1275
     * numerator and denominator must be relative prime and smaller then 256 for some video standards
1276
     * - encoding: set by user.
1277
     * - decoding: set by lavc.
1278
     */
1279
    AVRational sample_aspect_ratio;
1280

    
1281
    /**
1282
     * the picture in the bitstream.
1283
     * - encoding: set by lavc
1284
     * - decoding: set by lavc
1285
     */
1286
    AVFrame *coded_frame;
1287

    
1288
    /**
1289
     * debug.
1290
     * - encoding: set by user.
1291
     * - decoding: set by user.
1292
     */
1293
    int debug;
1294
#define FF_DEBUG_PICT_INFO 1
1295
#define FF_DEBUG_RC        2
1296
#define FF_DEBUG_BITSTREAM 4
1297
#define FF_DEBUG_MB_TYPE   8
1298
#define FF_DEBUG_QP        16
1299
#define FF_DEBUG_MV        32
1300
#define FF_DEBUG_DCT_COEFF 0x00000040
1301
#define FF_DEBUG_SKIP      0x00000080
1302
#define FF_DEBUG_STARTCODE 0x00000100
1303
#define FF_DEBUG_PTS       0x00000200
1304
#define FF_DEBUG_ER        0x00000400
1305
#define FF_DEBUG_MMCO      0x00000800
1306
#define FF_DEBUG_BUGS      0x00001000
1307
#define FF_DEBUG_VIS_QP    0x00002000
1308
#define FF_DEBUG_VIS_MB_TYPE 0x00004000
1309
    
1310
    /**
1311
     * debug.
1312
     * - encoding: set by user.
1313
     * - decoding: set by user.
1314
     */
1315
    int debug_mv;
1316
#define FF_DEBUG_VIS_MV_P_FOR  0x00000001 //visualize forward predicted MVs of P frames
1317
#define FF_DEBUG_VIS_MV_B_FOR  0x00000002 //visualize forward predicted MVs of B frames
1318
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1319

    
1320
    /**
1321
     * error.
1322
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1323
     * - decoding: unused
1324
     */
1325
    uint64_t error[4];
1326
    
1327
    /**
1328
     * minimum MB quantizer.
1329
     * - encoding: unused
1330
     * - decoding: unused
1331
     */
1332
    int mb_qmin;
1333

    
1334
    /**
1335
     * maximum MB quantizer.
1336
     * - encoding: unused
1337
     * - decoding: unused
1338
     */
1339
    int mb_qmax;
1340
    
1341
    /**
1342
     * motion estimation compare function.
1343
     * - encoding: set by user.
1344
     * - decoding: unused
1345
     */
1346
    int me_cmp;
1347
    /**
1348
     * subpixel motion estimation compare function.
1349
     * - encoding: set by user.
1350
     * - decoding: unused
1351
     */
1352
    int me_sub_cmp;
1353
    /**
1354
     * macroblock compare function (not supported yet).
1355
     * - encoding: set by user.
1356
     * - decoding: unused
1357
     */
1358
    int mb_cmp;
1359
    /**
1360
     * interlaced dct compare function
1361
     * - encoding: set by user.
1362
     * - decoding: unused
1363
     */
1364
    int ildct_cmp;
1365
#define FF_CMP_SAD  0
1366
#define FF_CMP_SSE  1
1367
#define FF_CMP_SATD 2
1368
#define FF_CMP_DCT  3
1369
#define FF_CMP_PSNR 4
1370
#define FF_CMP_BIT  5
1371
#define FF_CMP_RD   6
1372
#define FF_CMP_ZERO 7
1373
#define FF_CMP_VSAD 8
1374
#define FF_CMP_VSSE 9
1375
#define FF_CMP_NSSE 10
1376
#define FF_CMP_W53  11
1377
#define FF_CMP_W97  12
1378
#define FF_CMP_DCTMAX 13
1379
#define FF_CMP_CHROMA 256
1380
    
1381
    /**
1382
     * ME diamond size & shape.
1383
     * - encoding: set by user.
1384
     * - decoding: unused
1385
     */
1386
    int dia_size;
1387

    
1388
    /**
1389
     * amount of previous MV predictors (2a+1 x 2a+1 square).
1390
     * - encoding: set by user.
1391
     * - decoding: unused
1392
     */
1393
    int last_predictor_count;
1394

    
1395
    /**
1396
     * pre pass for motion estimation.
1397
     * - encoding: set by user.
1398
     * - decoding: unused
1399
     */
1400
    int pre_me;
1401

    
1402
    /**
1403
     * motion estimation pre pass compare function.
1404
     * - encoding: set by user.
1405
     * - decoding: unused
1406
     */
1407
    int me_pre_cmp;
1408

    
1409
    /**
1410
     * ME pre pass diamond size & shape.
1411
     * - encoding: set by user.
1412
     * - decoding: unused
1413
     */
1414
    int pre_dia_size;
1415

    
1416
    /**
1417
     * subpel ME quality.
1418
     * - encoding: set by user.
1419
     * - decoding: unused
1420
     */
1421
    int me_subpel_quality;
1422

    
1423
    /**
1424
     * callback to negotiate the pixelFormat.
1425
     * @param fmt is the list of formats which are supported by the codec,
1426
     * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1427
     * the first is allways the native one
1428
     * @return the choosen format
1429
     * - encoding: unused
1430
     * - decoding: set by user, if not set then the native format will always be choosen
1431
     */
1432
    enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
1433

    
1434
    /**
1435
     * DTG active format information (additionnal aspect ratio
1436
     * information only used in DVB MPEG2 transport streams). 0 if
1437
     * not set.
1438
     * 
1439
     * - encoding: unused.
1440
     * - decoding: set by decoder 
1441
     */
1442
    int dtg_active_format;
1443
#define FF_DTG_AFD_SAME         8
1444
#define FF_DTG_AFD_4_3          9
1445
#define FF_DTG_AFD_16_9         10
1446
#define FF_DTG_AFD_14_9         11
1447
#define FF_DTG_AFD_4_3_SP_14_9  13
1448
#define FF_DTG_AFD_16_9_SP_14_9 14
1449
#define FF_DTG_AFD_SP_4_3       15
1450

    
1451
    /**
1452
     * Maximum motion estimation search range in subpel units.
1453
     * if 0 then no limit
1454
     * 
1455
     * - encoding: set by user.
1456
     * - decoding: unused.
1457
     */
1458
    int me_range;
1459

    
1460
    /**
1461
     * intra quantizer bias.
1462
     * - encoding: set by user.
1463
     * - decoding: unused
1464
     */
1465
    int intra_quant_bias;
1466
#define FF_DEFAULT_QUANT_BIAS 999999
1467
    
1468
    /**
1469
     * inter quantizer bias.
1470
     * - encoding: set by user.
1471
     * - decoding: unused
1472
     */
1473
    int inter_quant_bias;
1474

    
1475
    /**
1476
     * color table ID.
1477
     * - encoding: unused.
1478
     * - decoding: which clrtable should be used for 8bit RGB images
1479
     *             table have to be stored somewhere FIXME
1480
     */
1481
    int color_table_id;
1482
    
1483
    /**
1484
     * internal_buffer count. 
1485
     * Don't touch, used by lavc default_get_buffer()
1486
     */
1487
    int internal_buffer_count;
1488
    
1489
    /**
1490
     * internal_buffers. 
1491
     * Don't touch, used by lavc default_get_buffer()
1492
     */
1493
    void *internal_buffer;
1494

    
1495
#define FF_LAMBDA_SHIFT 7
1496
#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1497
#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1498
#define FF_LAMBDA_MAX (256*128-1)
1499

    
1500
#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
1501
    /**
1502
     * global quality for codecs which cannot change it per frame.
1503
     * this should be proportional to MPEG1/2/4 qscale.
1504
     * - encoding: set by user.
1505
     * - decoding: unused
1506
     */
1507
    int global_quality;
1508
    
1509
#define FF_CODER_TYPE_VLC   0
1510
#define FF_CODER_TYPE_AC    1
1511
    /**
1512
     * coder type
1513
     * - encoding: set by user.
1514
     * - decoding: unused
1515
     */
1516
    int coder_type;
1517

    
1518
    /**
1519
     * context model
1520
     * - encoding: set by user.
1521
     * - decoding: unused
1522
     */
1523
    int context_model;
1524
    
1525
    /**
1526
     * slice flags
1527
     * - encoding: unused
1528
     * - decoding: set by user.
1529
     */
1530
    int slice_flags;
1531
#define SLICE_FLAG_CODED_ORDER    0x0001 ///< draw_horiz_band() is called in coded order instead of display
1532
#define SLICE_FLAG_ALLOW_FIELD    0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1533
#define SLICE_FLAG_ALLOW_PLANE    0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1534

    
1535
    /**
1536
     * XVideo Motion Acceleration
1537
     * - encoding: forbidden
1538
     * - decoding: set by decoder
1539
     */
1540
    int xvmc_acceleration;
1541
    
1542
    /**
1543
     * macroblock decision mode
1544
     * - encoding: set by user.
1545
     * - decoding: unused
1546
     */
1547
    int mb_decision;
1548
#define FF_MB_DECISION_SIMPLE 0        ///< uses mb_cmp
1549
#define FF_MB_DECISION_BITS   1        ///< chooses the one which needs the fewest bits
1550
#define FF_MB_DECISION_RD     2        ///< rate distoration
1551

    
1552
    /**
1553
     * custom intra quantization matrix
1554
     * - encoding: set by user, can be NULL
1555
     * - decoding: set by lavc
1556
     */
1557
    uint16_t *intra_matrix;
1558

    
1559
    /**
1560
     * custom inter quantization matrix
1561
     * - encoding: set by user, can be NULL
1562
     * - decoding: set by lavc
1563
     */
1564
    uint16_t *inter_matrix;
1565
    
1566
    /**
1567
     * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1568
     * this is used to workaround some encoder bugs
1569
     * - encoding: unused
1570
     * - decoding: set by user, will be converted to upper case by lavc during init
1571
     */
1572
    unsigned int stream_codec_tag;
1573

    
1574
    /**
1575
     * scene change detection threshold.
1576
     * 0 is default, larger means fewer detected scene changes
1577
     * - encoding: set by user.
1578
     * - decoding: unused
1579
     */
1580
    int scenechange_threshold;
1581

    
1582
    /**
1583
     * minimum lagrange multipler
1584
     * - encoding: set by user.
1585
     * - decoding: unused
1586
     */
1587
    int lmin;
1588

    
1589
    /**
1590
     * maximum lagrange multipler
1591
     * - encoding: set by user.
1592
     * - decoding: unused
1593
     */
1594
    int lmax;
1595

    
1596
    /**
1597
     * Palette control structure
1598
     * - encoding: ??? (no palette-enabled encoder yet)
1599
     * - decoding: set by user.
1600
     */
1601
    struct AVPaletteControl *palctrl;
1602

    
1603
    /**
1604
     * noise reduction strength
1605
     * - encoding: set by user.
1606
     * - decoding: unused
1607
     */
1608
    int noise_reduction;
1609
    
1610
    /**
1611
     * called at the beginning of a frame to get cr buffer for it.
1612
     * buffer type (size, hints) must be the same. lavc won't check it.
1613
     * lavc will pass previous buffer in pic, function should return
1614
     * same buffer or new buffer with old frame "painted" into it.
1615
     * if pic.data[0] == NULL must behave like get_buffer().
1616
     * - encoding: unused
1617
     * - decoding: set by lavc, user can override
1618
     */
1619
    int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
1620

    
1621
    /**
1622
     * number of bits which should be loaded into the rc buffer before decoding starts
1623
     * - encoding: set by user.
1624
     * - decoding: unused
1625
     */
1626
    int rc_initial_buffer_occupancy;
1627

    
1628
    /**
1629
     *
1630
     * - encoding: set by user.
1631
     * - decoding: unused
1632
     */
1633
    int inter_threshold;
1634

    
1635
    /**
1636
     * CODEC_FLAG2_*.
1637
     * - encoding: set by user.
1638
     * - decoding: set by user.
1639
     */
1640
    int flags2;
1641

    
1642
    /**
1643
     * simulates errors in the bitstream to test error concealment.
1644
     * - encoding: set by user.
1645
     * - decoding: unused.
1646
     */
1647
    int error_rate;
1648
    
1649
    /**
1650
     * MP3 antialias algorithm, see FF_AA_* below.
1651
     * - encoding: unused
1652
     * - decoding: set by user
1653
     */
1654
    int antialias_algo;
1655
#define FF_AA_AUTO    0
1656
#define FF_AA_FASTINT 1 //not implemented yet
1657
#define FF_AA_INT     2
1658
#define FF_AA_FLOAT   3
1659
    /**
1660
     * Quantizer noise shaping.
1661
     * - encoding: set by user
1662
     * - decoding: unused
1663
     */
1664
    int quantizer_noise_shaping;
1665

    
1666
    /**
1667
     * Thread count.
1668
     * is used to decide how many independant tasks should be passed to execute()
1669
     * - encoding: set by user
1670
     * - decoding: set by user
1671
     */
1672
    int thread_count;
1673
    
1674
    /**
1675
     * the codec may call this to execute several independant things. it will return only after
1676
     * finishing all tasks, the user may replace this with some multithreaded implementation, the
1677
     * default implementation will execute the parts serially
1678
     * @param count the number of things to execute
1679
     * - encoding: set by lavc, user can override
1680
     * - decoding: set by lavc, user can override
1681
     */
1682
    int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
1683
    
1684
    /**
1685
     * Thread opaque.
1686
     * can be used by execute() to store some per AVCodecContext stuff.
1687
     * - encoding: set by execute()
1688
     * - decoding: set by execute()
1689
     */
1690
    void *thread_opaque;
1691

    
1692
    /**
1693
     * Motion estimation threshold. under which no motion estimation is 
1694
     * performed, but instead the user specified motion vectors are used
1695
     * 
1696
     * - encoding: set by user
1697
     * - decoding: unused
1698
     */
1699
     int me_threshold;
1700

    
1701
    /**
1702
     * Macroblock threshold. under which the user specified macroblock types will be used
1703
     * - encoding: set by user
1704
     * - decoding: unused
1705
     */
1706
     int mb_threshold;
1707

    
1708
    /**
1709
     * precision of the intra dc coefficient - 8.
1710
     * - encoding: set by user
1711
     * - decoding: unused
1712
     */
1713
     int intra_dc_precision;
1714

    
1715
    /**
1716
     * noise vs. sse weight for the nsse comparsion function.
1717
     * - encoding: set by user
1718
     * - decoding: unused
1719
     */
1720
     int nsse_weight;
1721

    
1722
    /**
1723
     * number of macroblock rows at the top which are skipped.
1724
     * - encoding: unused
1725
     * - decoding: set by user
1726
     */
1727
     int skip_top;
1728

    
1729
    /**
1730
     * number of macroblock rows at the bottom which are skipped.
1731
     * - encoding: unused
1732
     * - decoding: set by user
1733
     */
1734
     int skip_bottom;
1735

    
1736
    /**
1737
     * profile
1738
     * - encoding: set by user
1739
     * - decoding: set by lavc
1740
     */
1741
     int profile;
1742
#define FF_PROFILE_UNKNOWN -99
1743

    
1744
    /**
1745
     * level
1746
     * - encoding: set by user
1747
     * - decoding: set by lavc
1748
     */
1749
     int level;
1750
#define FF_LEVEL_UNKNOWN -99
1751

    
1752
    /**
1753
     * low resolution decoding. 1-> 1/2 size, 2->1/4 size
1754
     * - encoding: unused
1755
     * - decoding: set by user
1756
     */
1757
     int lowres;
1758

    
1759
    /**
1760
     * bitsream width / height. may be different from width/height if lowres
1761
     * or other things are used
1762
     * - encoding: unused
1763
     * - decoding: set by user before init if known, codec should override / dynamically change if needed
1764
     */
1765
    int coded_width, coded_height;
1766

    
1767
    /**
1768
     * frame skip threshold
1769
     * - encoding: set by user
1770
     * - decoding: unused
1771
     */
1772
    int frame_skip_threshold;
1773

    
1774
    /**
1775
     * frame skip factor
1776
     * - encoding: set by user
1777
     * - decoding: unused
1778
     */
1779
    int frame_skip_factor;
1780

    
1781
    /**
1782
     * frame skip exponent
1783
     * - encoding: set by user
1784
     * - decoding: unused
1785
     */
1786
    int frame_skip_exp;
1787

    
1788
    /**
1789
     * frame skip comparission function
1790
     * - encoding: set by user.
1791
     * - decoding: unused
1792
     */
1793
    int frame_skip_cmp;
1794

    
1795
    /**
1796
     * border processing masking. raises the quantizer for mbs on the borders
1797
     * of the picture.
1798
     * - encoding: set by user
1799
     * - decoding: unused
1800
     */
1801
    float border_masking;
1802

    
1803
    /**
1804
     * minimum MB lagrange multipler.
1805
     * - encoding: set by user.
1806
     * - decoding: unused
1807
     */
1808
    int mb_lmin;
1809

    
1810
    /**
1811
     * maximum MB lagrange multipler.
1812
     * - encoding: set by user.
1813
     * - decoding: unused
1814
     */
1815
    int mb_lmax;
1816

    
1817
    /**
1818
     * 
1819
     * - encoding: set by user.
1820
     * - decoding: unused
1821
     */
1822
    int me_penalty_compensation;
1823

    
1824
    /**
1825
     * 
1826
     * - encoding: unused
1827
     * - decoding: set by user.
1828
     */
1829
    enum AVDiscard skip_loop_filter;
1830

    
1831
    /**
1832
     * 
1833
     * - encoding: unused
1834
     * - decoding: set by user.
1835
     */
1836
    enum AVDiscard skip_idct;
1837

    
1838
    /**
1839
     * 
1840
     * - encoding: unused
1841
     * - decoding: set by user.
1842
     */
1843
    enum AVDiscard skip_frame;
1844
} AVCodecContext;
1845

    
1846

    
1847
/**
1848
 * AVOption.
1849
 */
1850
typedef struct AVOption {
1851
    /** options' name */
1852
    const char *name; /* if name is NULL, it indicates a link to next */
1853
    /** short English text help or const struct AVOption* subpointer */
1854
    const char *help; //        const struct AVOption* sub;
1855
    /** offset to context structure where the parsed value should be stored */
1856
    int offset;
1857
    /** options' type */
1858
    int type;
1859
#define FF_OPT_TYPE_BOOL 1      ///< boolean - true,1,on  (or simply presence)
1860
#define FF_OPT_TYPE_DOUBLE 2    ///< double
1861
#define FF_OPT_TYPE_INT 3       ///< integer
1862
#define FF_OPT_TYPE_STRING 4    ///< string (finished with \0)
1863
#define FF_OPT_TYPE_MASK 0x1f        ///< mask for types - upper bits are various flags
1864
//#define FF_OPT_TYPE_EXPERT 0x20 // flag for expert option
1865
#define FF_OPT_TYPE_FLAG (FF_OPT_TYPE_BOOL | 0x40)
1866
#define FF_OPT_TYPE_RCOVERRIDE (FF_OPT_TYPE_STRING | 0x80)
1867
    /** min value  (min == max   ->  no limits) */
1868
    double min;
1869
    /** maximum value for double/int */
1870
    double max;
1871
    /** default boo [0,1]l/double/int value */
1872
    double defval;
1873
    /**
1874
     * default string value (with optional semicolon delimited extra option-list
1875
     * i.e.   option1;option2;option3
1876
     * defval might select other then first argument as default
1877
     */
1878
    const char *defstr;
1879
#define FF_OPT_MAX_DEPTH 10
1880
} AVOption;
1881

    
1882
/**
1883
 * AVCodec.
1884
 */
1885
typedef struct AVCodec {
1886
    const char *name;
1887
    enum CodecType type;
1888
    enum CodecID id;
1889
    int priv_data_size;
1890
    int (*init)(AVCodecContext *);
1891
    int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
1892
    int (*close)(AVCodecContext *);
1893
    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
1894
                  uint8_t *buf, int buf_size);
1895
    int capabilities;
1896
    void *dummy; // FIXME remove next time we break binary compatibility
1897
    struct AVCodec *next;
1898
    void (*flush)(AVCodecContext *);
1899
    const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
1900
    const enum PixelFormat *pix_fmts;       ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
1901
} AVCodec;
1902

    
1903
/**
1904
 * four components are given, that's all.
1905
 * the last component is alpha
1906
 */
1907
typedef struct AVPicture {
1908
    uint8_t *data[4];
1909
    int linesize[4];       ///< number of bytes per line
1910
} AVPicture;
1911

    
1912
/**
1913
 * AVPaletteControl
1914
 * This structure defines a method for communicating palette changes
1915
 * between and demuxer and a decoder.
1916
 */
1917
#define AVPALETTE_SIZE 1024
1918
#define AVPALETTE_COUNT 256
1919
typedef struct AVPaletteControl {
1920

    
1921
    /* demuxer sets this to 1 to indicate the palette has changed;
1922
     * decoder resets to 0 */
1923
    int palette_changed;
1924

    
1925
    /* 4-byte ARGB palette entries, stored in native byte order; note that
1926
     * the individual palette components should be on a 8-bit scale; if
1927
     * the palette data comes from a IBM VGA native format, the component
1928
     * data is probably 6 bits in size and needs to be scaled */
1929
    unsigned int palette[AVPALETTE_COUNT];
1930

    
1931
} AVPaletteControl;
1932

    
1933
typedef struct AVSubtitleRect {
1934
    uint16_t x;
1935
    uint16_t y;
1936
    uint16_t w;
1937
    uint16_t h;
1938
    uint16_t nb_colors;
1939
    int linesize;
1940
    uint32_t *rgba_palette;
1941
    uint8_t *bitmap;
1942
} AVSubtitleRect;
1943

    
1944
typedef struct AVSubtitle {
1945
    uint16_t format; /* 0 = graphics */
1946
    uint32_t start_display_time; /* relative to packet pts, in ms */
1947
    uint32_t end_display_time; /* relative to packet pts, in ms */
1948
    uint32_t num_rects;
1949
    AVSubtitleRect *rects;
1950
} AVSubtitle;
1951

    
1952
extern AVCodec ac3_encoder;
1953
extern AVCodec mp2_encoder;
1954
extern AVCodec mp3lame_encoder;
1955
extern AVCodec oggvorbis_encoder;
1956
extern AVCodec oggtheora_encoder;
1957
extern AVCodec faac_encoder;
1958
extern AVCodec xvid_encoder;
1959
extern AVCodec mpeg1video_encoder;
1960
extern AVCodec mpeg2video_encoder;
1961
extern AVCodec h261_encoder;
1962
extern AVCodec h263_encoder;
1963
extern AVCodec h263p_encoder;
1964
extern AVCodec flv_encoder;
1965
extern AVCodec rv10_encoder;
1966
extern AVCodec rv20_encoder;
1967
extern AVCodec dvvideo_encoder;
1968
extern AVCodec mjpeg_encoder;
1969
extern AVCodec ljpeg_encoder;
1970
extern AVCodec png_encoder;
1971
extern AVCodec ppm_encoder;
1972
extern AVCodec pgm_encoder;
1973
extern AVCodec pgmyuv_encoder;
1974
extern AVCodec pbm_encoder;
1975
extern AVCodec pam_encoder;
1976
extern AVCodec mpeg4_encoder;
1977
extern AVCodec msmpeg4v1_encoder;
1978
extern AVCodec msmpeg4v2_encoder;
1979
extern AVCodec msmpeg4v3_encoder;
1980
extern AVCodec wmv1_encoder;
1981
extern AVCodec wmv2_encoder;
1982
extern AVCodec huffyuv_encoder;
1983
extern AVCodec ffvhuff_encoder;
1984
extern AVCodec h264_encoder;
1985
extern AVCodec asv1_encoder;
1986
extern AVCodec asv2_encoder;
1987
extern AVCodec vcr1_encoder;
1988
extern AVCodec ffv1_encoder;
1989
extern AVCodec snow_encoder;
1990
extern AVCodec mdec_encoder;
1991
extern AVCodec zlib_encoder;
1992
extern AVCodec sonic_encoder;
1993
extern AVCodec sonic_ls_encoder;
1994
extern AVCodec svq1_encoder;
1995
extern AVCodec x264_encoder;
1996

    
1997
extern AVCodec h263_decoder;
1998
extern AVCodec h261_decoder;
1999
extern AVCodec mpeg4_decoder;
2000
extern AVCodec msmpeg4v1_decoder;
2001
extern AVCodec msmpeg4v2_decoder;
2002
extern AVCodec msmpeg4v3_decoder;
2003
extern AVCodec wmv1_decoder;
2004
extern AVCodec wmv2_decoder;
2005
extern AVCodec vc9_decoder;
2006
extern AVCodec wmv3_decoder;
2007
extern AVCodec mpeg1video_decoder;
2008
extern AVCodec mpeg2video_decoder;
2009
extern AVCodec mpegvideo_decoder;
2010
extern AVCodec mpeg_xvmc_decoder;
2011
extern AVCodec h263i_decoder;
2012
extern AVCodec flv_decoder;
2013
extern AVCodec rv10_decoder;
2014
extern AVCodec rv20_decoder;
2015
extern AVCodec rv30_decoder;
2016
extern AVCodec rv40_decoder;
2017
extern AVCodec svq1_decoder;
2018
extern AVCodec svq3_decoder;
2019
extern AVCodec dvvideo_decoder;
2020
extern AVCodec wmav1_decoder;
2021
extern AVCodec wmav2_decoder;
2022
extern AVCodec mjpeg_decoder;
2023
extern AVCodec mjpegb_decoder;
2024
extern AVCodec sp5x_decoder;
2025
extern AVCodec png_decoder;
2026
extern AVCodec mp2_decoder;
2027
extern AVCodec mp3_decoder;
2028
extern AVCodec mp3adu_decoder;
2029
extern AVCodec mp3on4_decoder;
2030
extern AVCodec mace3_decoder;
2031
extern AVCodec mace6_decoder;
2032
extern AVCodec huffyuv_decoder;
2033
extern AVCodec ffvhuff_decoder;
2034
extern AVCodec oggvorbis_decoder;
2035
extern AVCodec oggtheora_decoder;
2036
extern AVCodec cyuv_decoder;
2037
extern AVCodec h264_decoder;
2038
extern AVCodec indeo3_decoder;
2039
extern AVCodec vp3_decoder;
2040
extern AVCodec theora_decoder;
2041
extern AVCodec amr_nb_decoder;
2042
extern AVCodec amr_nb_encoder;
2043
extern AVCodec amr_wb_encoder;
2044
extern AVCodec amr_wb_decoder;
2045
extern AVCodec aac_decoder;
2046
extern AVCodec mpeg4aac_decoder;
2047
extern AVCodec asv1_decoder;
2048
extern AVCodec asv2_decoder;
2049
extern AVCodec vcr1_decoder;
2050
extern AVCodec cljr_decoder;
2051
extern AVCodec ffv1_decoder;
2052
extern AVCodec snow_decoder;
2053
extern AVCodec fourxm_decoder;
2054
extern AVCodec mdec_decoder;
2055
extern AVCodec roq_decoder;
2056
extern AVCodec interplay_video_decoder;
2057
extern AVCodec xan_wc3_decoder;
2058
extern AVCodec rpza_decoder;
2059
extern AVCodec cinepak_decoder;
2060
extern AVCodec msrle_decoder;
2061
extern AVCodec msvideo1_decoder;
2062
extern AVCodec vqa_decoder;
2063
extern AVCodec idcin_decoder;
2064
extern AVCodec eightbps_decoder;
2065
extern AVCodec smc_decoder;
2066
extern AVCodec flic_decoder;
2067
extern AVCodec vmdvideo_decoder;
2068
extern AVCodec vmdaudio_decoder;
2069
extern AVCodec truemotion1_decoder;
2070
extern AVCodec mszh_decoder;
2071
extern AVCodec zlib_decoder;
2072
extern AVCodec ra_144_decoder;
2073
extern AVCodec ra_288_decoder;
2074
extern AVCodec roq_dpcm_decoder;
2075
extern AVCodec interplay_dpcm_decoder;
2076
extern AVCodec xan_dpcm_decoder;
2077
extern AVCodec sol_dpcm_decoder;
2078
extern AVCodec sonic_decoder;
2079
extern AVCodec qtrle_decoder;
2080
extern AVCodec flac_decoder;
2081
extern AVCodec tscc_decoder;
2082
extern AVCodec ulti_decoder;
2083
extern AVCodec qdraw_decoder;
2084
extern AVCodec xl_decoder;
2085
extern AVCodec qpeg_decoder;
2086
extern AVCodec shorten_decoder;
2087
extern AVCodec loco_decoder;
2088
extern AVCodec wnv1_decoder;
2089
extern AVCodec aasc_decoder;
2090
extern AVCodec alac_decoder;
2091
extern AVCodec ws_snd1_decoder;
2092
extern AVCodec indeo2_decoder;
2093
extern AVCodec vorbis_decoder;
2094
extern AVCodec fraps_decoder;
2095
extern AVCodec libgsm_encoder;
2096
extern AVCodec libgsm_decoder;
2097

    
2098
/* pcm codecs */
2099
#define PCM_CODEC(id, name) \
2100
extern AVCodec name ## _decoder; \
2101
extern AVCodec name ## _encoder
2102

    
2103
PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
2104
PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
2105
PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
2106
PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
2107
PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
2108
PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
2109
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
2110
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
2111

    
2112
/* adpcm codecs */
2113

    
2114
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
2115
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
2116
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
2117
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
2118
PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
2119
PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
2120
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
2121
PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
2122
PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
2123
PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
2124
PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
2125
PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
2126
PCM_CODEC(CODEC_ID_ADPCM_CT, adpcm_ct);
2127
PCM_CODEC(CODEC_ID_ADPCM_SWF, adpcm_swf);
2128
PCM_CODEC(CODEC_ID_ADPCM_YAMAHA, adpcm_yamaha);
2129

    
2130
#undef PCM_CODEC
2131

    
2132
/* dummy raw video codec */
2133
extern AVCodec rawvideo_encoder;
2134
extern AVCodec rawvideo_decoder;
2135

    
2136
/* the following codecs use external GPL libs */
2137
extern AVCodec ac3_decoder;
2138
extern AVCodec dts_decoder;
2139

    
2140
/* subtitles */
2141
extern AVCodec dvdsub_decoder;
2142
extern AVCodec dvbsub_encoder;
2143
extern AVCodec dvbsub_decoder;
2144

    
2145
/* resample.c */
2146

    
2147
struct ReSampleContext;
2148
struct AVResampleContext;
2149

    
2150
typedef struct ReSampleContext ReSampleContext;
2151

    
2152
ReSampleContext *audio_resample_init(int output_channels, int input_channels, 
2153
                                     int output_rate, int input_rate);
2154
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
2155
void audio_resample_close(ReSampleContext *s);
2156

    
2157
struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
2158
int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
2159
void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
2160
void av_resample_close(struct AVResampleContext *c);
2161

    
2162
/* YUV420 format is assumed ! */
2163

    
2164
struct ImgReSampleContext;
2165

    
2166
typedef struct ImgReSampleContext ImgReSampleContext;
2167

    
2168
ImgReSampleContext *img_resample_init(int output_width, int output_height,
2169
                                      int input_width, int input_height);
2170

    
2171
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
2172
                                      int iwidth, int iheight,
2173
                                      int topBand, int bottomBand,
2174
                                      int leftBand, int rightBand,
2175
                                      int padtop, int padbottom,
2176
                                      int padleft, int padright);
2177

    
2178

    
2179
void img_resample(ImgReSampleContext *s, 
2180
                  AVPicture *output, const AVPicture *input);
2181

    
2182
void img_resample_close(ImgReSampleContext *s);
2183

    
2184
/**
2185
 * Allocate memory for a picture.  Call avpicture_free to free it.
2186
 *
2187
 * @param picture the picture to be filled in.
2188
 * @param pix_fmt the format of the picture.
2189
 * @param width the width of the picture.
2190
 * @param height the height of the picture.
2191
 * @return 0 if successful, -1 if not.
2192
 */
2193
int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
2194

    
2195
/* Free a picture previously allocated by avpicture_alloc. */
2196
void avpicture_free(AVPicture *picture);
2197

    
2198
int avpicture_fill(AVPicture *picture, uint8_t *ptr,
2199
                   int pix_fmt, int width, int height);
2200
int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
2201
                     unsigned char *dest, int dest_size);
2202
int avpicture_get_size(int pix_fmt, int width, int height);
2203
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
2204
const char *avcodec_get_pix_fmt_name(int pix_fmt);
2205
void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
2206
enum PixelFormat avcodec_get_pix_fmt(const char* name);
2207
unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat p);
2208

    
2209
#define FF_LOSS_RESOLUTION  0x0001 /* loss due to resolution change */
2210
#define FF_LOSS_DEPTH       0x0002 /* loss due to color depth change */
2211
#define FF_LOSS_COLORSPACE  0x0004 /* loss due to color space conversion */
2212
#define FF_LOSS_ALPHA       0x0008 /* loss of alpha bits */
2213
#define FF_LOSS_COLORQUANT  0x0010 /* loss due to color quantization */
2214
#define FF_LOSS_CHROMA      0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
2215

    
2216
int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
2217
                             int has_alpha);
2218
int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
2219
                              int has_alpha, int *loss_ptr);
2220

    
2221
#define FF_ALPHA_TRANSP       0x0001 /* image has some totally transparent pixels */
2222
#define FF_ALPHA_SEMI_TRANSP  0x0002 /* image has some transparent pixels */
2223
int img_get_alpha_info(const AVPicture *src,
2224
                       int pix_fmt, int width, int height);
2225

    
2226
/* convert among pixel formats */
2227
int img_convert(AVPicture *dst, int dst_pix_fmt,
2228
                const AVPicture *src, int pix_fmt, 
2229
                int width, int height);
2230

    
2231
/* deinterlace a picture */
2232
int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
2233
                          int pix_fmt, int width, int height);
2234

    
2235
/* external high level API */
2236

    
2237
extern AVCodec *first_avcodec;
2238

    
2239
/* returns LIBAVCODEC_VERSION_INT constant */
2240
unsigned avcodec_version(void);
2241
/* returns LIBAVCODEC_BUILD constant */
2242
unsigned avcodec_build(void);
2243
void avcodec_init(void);
2244

    
2245
void register_avcodec(AVCodec *format);
2246
AVCodec *avcodec_find_encoder(enum CodecID id);
2247
AVCodec *avcodec_find_encoder_by_name(const char *name);
2248
AVCodec *avcodec_find_decoder(enum CodecID id);
2249
AVCodec *avcodec_find_decoder_by_name(const char *name);
2250
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
2251

    
2252
void avcodec_get_context_defaults(AVCodecContext *s);
2253
AVCodecContext *avcodec_alloc_context(void);
2254
void avcodec_get_frame_defaults(AVFrame *pic);
2255
AVFrame *avcodec_alloc_frame(void);
2256

    
2257
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
2258
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
2259
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
2260
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
2261
int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h);
2262
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
2263

    
2264
int avcodec_thread_init(AVCodecContext *s, int thread_count);
2265
void avcodec_thread_free(AVCodecContext *s);
2266
int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2267
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2268
//FIXME func typedef
2269

    
2270
/**
2271
 * opens / inits the AVCodecContext.
2272
 * not thread save!
2273
 */
2274
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
2275

    
2276
int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples, 
2277
                         int *frame_size_ptr,
2278
                         uint8_t *buf, int buf_size);
2279
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture, 
2280
                         int *got_picture_ptr,
2281
                         uint8_t *buf, int buf_size);
2282
int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
2283
                            int *got_sub_ptr,
2284
                            const uint8_t *buf, int buf_size);
2285
int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata, 
2286
                        int *data_size_ptr,
2287
                        uint8_t *buf, int buf_size);
2288
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
2289
                         const short *samples);
2290
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
2291
                         const AVFrame *pict);
2292
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
2293
                            const AVSubtitle *sub);
2294

    
2295
int avcodec_close(AVCodecContext *avctx);
2296

    
2297
void avcodec_register_all(void);
2298

    
2299
void avcodec_flush_buffers(AVCodecContext *avctx);
2300

    
2301
void avcodec_default_free_buffers(AVCodecContext *s);
2302

    
2303
/* misc usefull functions */
2304

    
2305
/**
2306
 * returns a single letter to describe the picture type
2307
 */
2308
char av_get_pict_type_char(int pict_type);
2309

    
2310
/**
2311
 * reduce a fraction.
2312
 * this is usefull for framerate calculations
2313
 * @param max the maximum allowed for dst_nom & dst_den
2314
 * @return 1 if exact, 0 otherwise
2315
 */
2316
int av_reduce(int *dst_nom, int *dst_den, int64_t nom, int64_t den, int64_t max);
2317

    
2318
/**
2319
 * rescale a 64bit integer with rounding to nearest.
2320
 * a simple a*b/c isn't possible as it can overflow
2321
 */
2322
int64_t av_rescale(int64_t a, int64_t b, int64_t c);
2323

    
2324
/**
2325
 * rescale a 64bit integer with specified rounding.
2326
 * a simple a*b/c isn't possible as it can overflow
2327
 */
2328
int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding);
2329

    
2330
/**
2331
 * rescale a 64bit integer by 2 rational numbers.
2332
 */
2333
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq);
2334

    
2335
double av_int2dbl(int64_t v);
2336
float av_int2flt(int32_t v);
2337
int64_t av_dbl2int(double d);
2338
int32_t av_flt2int(float d);
2339

    
2340

    
2341
/* frame parsing */
2342
typedef struct AVCodecParserContext {
2343
    void *priv_data;
2344
    struct AVCodecParser *parser;
2345
    int64_t frame_offset; /* offset of the current frame */
2346
    int64_t cur_offset; /* current offset 
2347
                           (incremented by each av_parser_parse()) */
2348
    int64_t last_frame_offset; /* offset of the last frame */
2349
    /* video info */
2350
    int pict_type; /* XXX: put it back in AVCodecContext */
2351
    int repeat_pict; /* XXX: put it back in AVCodecContext */
2352
    int64_t pts;     /* pts of the current frame */
2353
    int64_t dts;     /* dts of the current frame */
2354

    
2355
    /* private data */
2356
    int64_t last_pts;
2357
    int64_t last_dts;
2358
    int fetch_timestamp;
2359

    
2360
#define AV_PARSER_PTS_NB 4
2361
    int cur_frame_start_index;
2362
    int64_t cur_frame_offset[AV_PARSER_PTS_NB];
2363
    int64_t cur_frame_pts[AV_PARSER_PTS_NB];
2364
    int64_t cur_frame_dts[AV_PARSER_PTS_NB];
2365
} AVCodecParserContext;
2366

    
2367
typedef struct AVCodecParser {
2368
    int codec_ids[5]; /* several codec IDs are permitted */
2369
    int priv_data_size;
2370
    int (*parser_init)(AVCodecParserContext *s);
2371
    int (*parser_parse)(AVCodecParserContext *s, 
2372
                        AVCodecContext *avctx,
2373
                        uint8_t **poutbuf, int *poutbuf_size, 
2374
                        const uint8_t *buf, int buf_size);
2375
    void (*parser_close)(AVCodecParserContext *s);
2376
    int (*split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size);
2377
    struct AVCodecParser *next;
2378
} AVCodecParser;
2379

    
2380
extern AVCodecParser *av_first_parser;
2381

    
2382
void av_register_codec_parser(AVCodecParser *parser);
2383
AVCodecParserContext *av_parser_init(int codec_id);
2384
int av_parser_parse(AVCodecParserContext *s, 
2385
                    AVCodecContext *avctx,
2386
                    uint8_t **poutbuf, int *poutbuf_size, 
2387
                    const uint8_t *buf, int buf_size,
2388
                    int64_t pts, int64_t dts);
2389
int av_parser_change(AVCodecParserContext *s,
2390
                     AVCodecContext *avctx,
2391
                     uint8_t **poutbuf, int *poutbuf_size, 
2392
                     const uint8_t *buf, int buf_size, int keyframe);
2393
void av_parser_close(AVCodecParserContext *s);
2394

    
2395
extern AVCodecParser mpegvideo_parser;
2396
extern AVCodecParser mpeg4video_parser;
2397
extern AVCodecParser h261_parser;
2398
extern AVCodecParser h263_parser;
2399
extern AVCodecParser h264_parser;
2400
extern AVCodecParser mjpeg_parser;
2401
extern AVCodecParser pnm_parser;
2402
extern AVCodecParser mpegaudio_parser;
2403
extern AVCodecParser ac3_parser;
2404
extern AVCodecParser dvdsub_parser;
2405
extern AVCodecParser dvbsub_parser;
2406

    
2407
/* memory */
2408
void *av_malloc(unsigned int size);
2409
void *av_mallocz(unsigned int size);
2410
void *av_realloc(void *ptr, unsigned int size);
2411
void av_free(void *ptr);
2412
char *av_strdup(const char *s);
2413
void av_freep(void *ptr);
2414
void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
2415
/* for static data only */
2416
/* call av_free_static to release all staticaly allocated tables */
2417
void av_free_static(void);
2418
void *av_mallocz_static(unsigned int size);
2419
void *av_realloc_static(void *ptr, unsigned int size);
2420

    
2421
/* add by bero : in adx.c */
2422
int is_adx(const unsigned char *buf,size_t bufsize);
2423

    
2424
void img_copy(AVPicture *dst, const AVPicture *src,
2425
              int pix_fmt, int width, int height);
2426

    
2427
/* av_log API */
2428

    
2429
#include <stdarg.h>
2430

    
2431
#define AV_LOG_QUIET -1
2432
#define AV_LOG_ERROR 0
2433
#define AV_LOG_INFO 1
2434
#define AV_LOG_DEBUG 2
2435

    
2436
#ifdef __GNUC__
2437
extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
2438
#else
2439
extern void av_log(void*, int level, const char *fmt, ...);
2440
#endif
2441

    
2442
extern void av_vlog(void*, int level, const char *fmt, va_list);
2443
extern int av_log_get_level(void);
2444
extern void av_log_set_level(int);
2445
extern void av_log_set_callback(void (*)(void*, int, const char*, va_list));
2446

    
2447
/* endian macros */
2448
#if !defined(BE_16) || !defined(BE_32) || !defined(LE_16) || !defined(LE_32)
2449
#define BE_16(x)  ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
2450
#define BE_32(x)  ((((uint8_t*)(x))[0] << 24) | \
2451
                   (((uint8_t*)(x))[1] << 16) | \
2452
                   (((uint8_t*)(x))[2] << 8) | \
2453
                    ((uint8_t*)(x))[3])
2454
#define LE_16(x)  ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
2455
#define LE_32(x)  ((((uint8_t*)(x))[3] << 24) | \
2456
                   (((uint8_t*)(x))[2] << 16) | \
2457
                   (((uint8_t*)(x))[1] << 8) | \
2458
                    ((uint8_t*)(x))[0])
2459
#endif
2460

    
2461
extern unsigned int av_xiphlacing(unsigned char *s, unsigned int v);
2462

    
2463
#ifdef __cplusplus
2464
}
2465
#endif
2466

    
2467
#endif /* AVCODEC_H */