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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 "avutil.h"
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#include <sys/types.h> /* size_t */
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//FIXME the following 2 really dont belong in here
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#define FFMPEG_VERSION_INT      0x000409
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#define FFMPEG_VERSION          "CVS"
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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_VERSION_INT  ((51<<16)+(0<<8)+0)
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#define LIBAVCODEC_VERSION      51.0.0
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#define LIBAVCODEC_BUILD        LIBAVCODEC_VERSION_INT
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#define LIBAVCODEC_IDENT        "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)
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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_JPEGLS,
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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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    CODEC_ID_TRUEMOTION2,
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    CODEC_ID_BMP,
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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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    CODEC_ID_PCM_S32LE,
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    CODEC_ID_PCM_S32BE,
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    CODEC_ID_PCM_U32LE,
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    CODEC_ID_PCM_U32BE,
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    CODEC_ID_PCM_S24LE,
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    CODEC_ID_PCM_S24BE,
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    CODEC_ID_PCM_U24LE,
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    CODEC_ID_PCM_U24BE,
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    CODEC_ID_PCM_S24DAUD,
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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_QDM2,
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    CODEC_ID_COOK,
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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 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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/**
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 * Codec uses get_buffer() for allocating buffers.
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 * direct rendering method 1
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 */
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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.
385
 * if this is not set, the codec is guranteed to never be feeded with NULL data
386
 */
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#define CODEC_CAP_DELAY           0x0020
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//the following defines may change, don't expect compatibility if you use them
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#define MB_TYPE_INTRA4x4   0x0001
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#define MB_TYPE_INTRA16x16 0x0002 //FIXME h264 specific
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#define MB_TYPE_INTRA_PCM  0x0004 //FIXME h264 specific
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#define MB_TYPE_16x16      0x0008
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#define MB_TYPE_16x8       0x0010
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#define MB_TYPE_8x16       0x0020
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#define MB_TYPE_8x8        0x0040
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#define MB_TYPE_INTERLACED 0x0080
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#define MB_TYPE_DIRECT2     0x0100 //FIXME
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#define MB_TYPE_ACPRED     0x0200
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#define MB_TYPE_GMC        0x0400
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#define MB_TYPE_SKIP       0x0800
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#define MB_TYPE_P0L0       0x1000
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#define MB_TYPE_P1L0       0x2000
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#define MB_TYPE_P0L1       0x4000
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#define MB_TYPE_P1L1       0x8000
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#define MB_TYPE_L0         (MB_TYPE_P0L0 | MB_TYPE_P1L0)
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#define MB_TYPE_L1         (MB_TYPE_P0L1 | MB_TYPE_P1L1)
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#define MB_TYPE_L0L1       (MB_TYPE_L0   | MB_TYPE_L1)
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#define MB_TYPE_QUANT      0x00010000
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#define MB_TYPE_CBP        0x00020000
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//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...)
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/**
414
 * Pan Scan area.
415
 * this specifies the area which should be displayed. Note there may be multiple such areas for one frame
416
 */
417
typedef struct AVPanScan{
418
    /**
419
     * id.
420
     * - encoding: set by user.
421
     * - decoding: set by lavc
422
     */
423
    int id;
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425
    /**
426
     * width and height in 1/16 pel
427
     * - encoding: set by user.
428
     * - decoding: set by lavc
429
     */
430
    int width;
431
    int height;
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433
    /**
434
     * position of the top left corner in 1/16 pel for up to 3 fields/frames.
435
     * - encoding: set by user.
436
     * - decoding: set by lavc
437
     */
438
    int16_t position[3][2];
439
}AVPanScan;
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441
#define FF_COMMON_FRAME \
442
    /**\
443
     * pointer to the picture planes.\
444
     * this might be different from the first allocated byte\
445
     * - encoding: \
446
     * - decoding: \
447
     */\
448
    uint8_t *data[4];\
449
    int linesize[4];\
450
    /**\
451
     * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
452
     * this isn't used by lavc unless the default get/release_buffer() is used\
453
     * - encoding: \
454
     * - decoding: \
455
     */\
456
    uint8_t *base[4];\
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    /**\
458
     * 1 -> keyframe, 0-> not\
459
     * - encoding: set by lavc\
460
     * - decoding: set by lavc\
461
     */\
462
    int key_frame;\
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\
464
    /**\
465
     * picture type of the frame, see ?_TYPE below.\
466
     * - encoding: set by lavc for coded_picture (and set by user for input)\
467
     * - decoding: set by lavc\
468
     */\
469
    int pict_type;\
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\
471
    /**\
472
     * presentation timestamp in time_base units (time when frame should be shown to user)\
473
     * if AV_NOPTS_VALUE then frame_rate = 1/time_base will be assumed\
474
     * - encoding: MUST be set by user\
475
     * - decoding: set by lavc\
476
     */\
477
    int64_t pts;\
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\
479
    /**\
480
     * picture number in bitstream order.\
481
     * - encoding: set by\
482
     * - decoding: set by lavc\
483
     */\
484
    int coded_picture_number;\
485
    /**\
486
     * picture number in display order.\
487
     * - encoding: set by\
488
     * - decoding: set by lavc\
489
     */\
490
    int display_picture_number;\
491
\
492
    /**\
493
     * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
494
     * - encoding: set by lavc for coded_picture (and set by user for input)\
495
     * - decoding: set by lavc\
496
     */\
497
    int quality; \
498
\
499
    /**\
500
     * buffer age (1->was last buffer and dint change, 2->..., ...).\
501
     * set to INT_MAX if the buffer has not been used yet \
502
     * - encoding: unused\
503
     * - decoding: MUST be set by get_buffer()\
504
     */\
505
    int age;\
506
\
507
    /**\
508
     * is this picture used as reference\
509
     * - encoding: unused\
510
     * - decoding: set by lavc (before get_buffer() call))\
511
     */\
512
    int reference;\
513
\
514
    /**\
515
     * QP table\
516
     * - encoding: unused\
517
     * - decoding: set by lavc\
518
     */\
519
    int8_t *qscale_table;\
520
    /**\
521
     * QP store stride\
522
     * - encoding: unused\
523
     * - decoding: set by lavc\
524
     */\
525
    int qstride;\
526
\
527
    /**\
528
     * mbskip_table[mb]>=1 if MB didnt change\
529
     * stride= mb_width = (width+15)>>4\
530
     * - encoding: unused\
531
     * - decoding: set by lavc\
532
     */\
533
    uint8_t *mbskip_table;\
534
\
535
    /**\
536
     * Motion vector table.\
537
     * @code\
538
     * example:\
539
     * int mv_sample_log2= 4 - motion_subsample_log2;\
540
     * int mb_width= (width+15)>>4;\
541
     * int mv_stride= (mb_width << mv_sample_log2) + 1;\
542
     * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y];\
543
     * @endcode\
544
     * - encoding: set by user\
545
     * - decoding: set by lavc\
546
     */\
547
    int16_t (*motion_val[2])[2];\
548
\
549
    /**\
550
     * Macroblock type table\
551
     * mb_type_base + mb_width + 2\
552
     * - encoding: set by user\
553
     * - decoding: set by lavc\
554
     */\
555
    uint32_t *mb_type;\
556
\
557
    /**\
558
     * log2 of the size of the block which a single vector in motion_val represents: \
559
     * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2)\
560
     * - encoding: unused\
561
     * - decoding: set by lavc\
562
     */\
563
    uint8_t motion_subsample_log2;\
564
\
565
    /**\
566
     * for some private data of the user\
567
     * - encoding: unused\
568
     * - decoding: set by user\
569
     */\
570
    void *opaque;\
571
\
572
    /**\
573
     * error\
574
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
575
     * - decoding: unused\
576
     */\
577
    uint64_t error[4];\
578
\
579
    /**\
580
     * type of the buffer (to keep track of who has to dealloc data[*])\
581
     * - encoding: set by the one who allocs it\
582
     * - decoding: set by the one who allocs it\
583
     * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
584
     */\
585
    int type;\
586
    \
587
    /**\
588
     * when decoding, this signal how much the picture must be delayed.\
589
     * extra_delay = repeat_pict / (2*fps)\
590
     * - encoding: unused\
591
     * - decoding: set by lavc\
592
     */\
593
    int repeat_pict;\
594
    \
595
    /**\
596
     * \
597
     */\
598
    int qscale_type;\
599
    \
600
    /**\
601
     * The content of the picture is interlaced.\
602
     * - encoding: set by user\
603
     * - decoding: set by lavc (default 0)\
604
     */\
605
    int interlaced_frame;\
606
    \
607
    /**\
608
     * if the content is interlaced, is top field displayed first.\
609
     * - encoding: set by user\
610
     * - decoding: set by lavc\
611
     */\
612
    int top_field_first;\
613
    \
614
    /**\
615
     * Pan scan.\
616
     * - encoding: set by user\
617
     * - decoding: set by lavc\
618
     */\
619
    AVPanScan *pan_scan;\
620
    \
621
    /**\
622
     * tell user application that palette has changed from previous frame.\
623
     * - encoding: ??? (no palette-enabled encoder yet)\
624
     * - decoding: set by lavc (default 0)\
625
     */\
626
    int palette_has_changed;\
627
    \
628
    /**\
629
     * Codec suggestion on buffer type if != 0\
630
     * - encoding: unused\
631
     * - decoding: set by lavc (before get_buffer() call))\
632
     */\
633
    int buffer_hints;\
634
\
635
    /**\
636
     * DCT coeffitients\
637
     * - encoding: unused\
638
     * - decoding: set by lavc\
639
     */\
640
    short *dct_coeff;\
641
\
642
    /**\
643
     * Motion referece frame index\
644
     * - encoding: set by user\
645
     * - decoding: set by lavc\
646
     */\
647
    int8_t *ref_index[2];
648

    
649
#define FF_QSCALE_TYPE_MPEG1 0
650
#define FF_QSCALE_TYPE_MPEG2 1
651
#define FF_QSCALE_TYPE_H264  2
652

    
653
#define FF_BUFFER_TYPE_INTERNAL 1
654
#define FF_BUFFER_TYPE_USER     2 ///< Direct rendering buffers (image is (de)allocated by user)
655
#define FF_BUFFER_TYPE_SHARED   4 ///< buffer from somewhere else, don't dealloc image (data/base), all other tables are not shared
656
#define FF_BUFFER_TYPE_COPY     8 ///< just a (modified) copy of some other buffer, don't dealloc anything
657

    
658

    
659
#define FF_I_TYPE 1 // Intra
660
#define FF_P_TYPE 2 // Predicted
661
#define FF_B_TYPE 3 // Bi-dir predicted
662
#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
663
#define FF_SI_TYPE 5
664
#define FF_SP_TYPE 6
665

    
666
#define FF_BUFFER_HINTS_VALID    0x01 // Buffer hints value is meaningful (if 0 ignore)
667
#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
668
#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
669
#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
670

    
671
/**
672
 * Audio Video Frame.
673
 */
674
typedef struct AVFrame {
675
    FF_COMMON_FRAME
676
} AVFrame;
677

    
678
#define DEFAULT_FRAME_RATE_BASE 1001000
679

    
680
/**
681
 * Used by av_log
682
 */
683
typedef struct AVCLASS AVClass;
684
struct AVCLASS {
685
    const char* class_name;
686
    const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext
687
                                        or AVFormatContext, which begin with an AVClass.
688
                                        Needed because av_log is in libavcodec and has no visibility
689
                                        of AVIn/OutputFormat */
690
    struct AVOption *option;
691
};
692

    
693
/**
694
 * main external api structure.
695
 */
696
typedef struct AVCodecContext {
697
    /**
698
     * Info on struct for av_log
699
     * - set by avcodec_alloc_context
700
     */
701
    AVClass *av_class;
702
    /**
703
     * the average bitrate.
704
     * - encoding: set by user. unused for constant quantizer encoding
705
     * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream
706
     */
707
    int bit_rate;
708

    
709
    /**
710
     * number of bits the bitstream is allowed to diverge from the reference.
711
     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
712
     * - encoding: set by user. unused for constant quantizer encoding
713
     * - decoding: unused
714
     */
715
    int bit_rate_tolerance;
716

    
717
    /**
718
     * CODEC_FLAG_*.
719
     * - encoding: set by user.
720
     * - decoding: set by user.
721
     */
722
    int flags;
723

    
724
    /**
725
     * some codecs needs additionnal format info. It is stored here
726
     * - encoding: set by user.
727
     * - decoding: set by lavc. (FIXME is this ok?)
728
     */
729
    int sub_id;
730

    
731
    /**
732
     * motion estimation algorithm used for video coding.
733
     * - encoding: MUST be set by user.
734
     * - decoding: unused
735
     */
736
    int me_method;
737

    
738
    /**
739
     * some codecs need / can use extra-data like huffman tables.
740
     * mjpeg: huffman tables
741
     * rv10: additional flags
742
     * mpeg4: global headers (they can be in the bitstream or here)
743
     * the allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
744
     * then extradata_size to avoid prolems if its read with the bitstream reader
745
     * the bytewise contents of extradata must not depend on the architecture or cpu endianness
746
     * - encoding: set/allocated/freed by lavc.
747
     * - decoding: set/allocated/freed by user.
748
     */
749
    void *extradata;
750
    int extradata_size;
751

    
752
    /**
753
     * this is the fundamental unit of time (in seconds) in terms
754
     * of which frame timestamps are represented. for fixed-fps content,
755
     * timebase should be 1/framerate and timestamp increments should be
756
     * identically 1.
757
     * - encoding: MUST be set by user
758
     * - decoding: set by lavc.
759
     */
760
    AVRational time_base;
761

    
762
    /* video only */
763
    /**
764
     * picture width / height.
765
     * - encoding: MUST be set by user.
766
     * - decoding: set by lavc.
767
     * Note, for compatibility its possible to set this instead of
768
     * coded_width/height before decoding
769
     */
770
    int width, height;
771

    
772
#define FF_ASPECT_EXTENDED 15
773

    
774
    /**
775
     * the number of pictures in a group of pitures, or 0 for intra_only.
776
     * - encoding: set by user.
777
     * - decoding: unused
778
     */
779
    int gop_size;
780

    
781
    /**
782
     * pixel format, see PIX_FMT_xxx.
783
     * - encoding: set by user.
784
     * - decoding: set by lavc.
785
     */
786
    enum PixelFormat pix_fmt;
787

    
788
    /**
789
     * Frame rate emulation. If not zero lower layer (i.e. format handler)
790
     * has to read frames at native frame rate.
791
     * - encoding: set by user.
792
     * - decoding: unused.
793
     */
794
    int rate_emu;
795

    
796
    /**
797
     * if non NULL, 'draw_horiz_band' is called by the libavcodec
798
     * decoder to draw an horizontal band. It improve cache usage. Not
799
     * all codecs can do that. You must check the codec capabilities
800
     * before
801
     * - encoding: unused
802
     * - decoding: set by user.
803
     * @param height the height of the slice
804
     * @param y the y position of the slice
805
     * @param type 1->top field, 2->bottom field, 3->frame
806
     * @param offset offset into the AVFrame.data from which the slice should be read
807
     */
808
    void (*draw_horiz_band)(struct AVCodecContext *s,
809
                            const AVFrame *src, int offset[4],
810
                            int y, int type, int height);
811

    
812
    /* audio only */
813
    int sample_rate; ///< samples per sec
814
    int channels;
815

    
816
    /**
817
     * audio sample format.
818
     * - encoding: set by user.
819
     * - decoding: set by lavc.
820
     */
821
    enum SampleFormat sample_fmt;  ///< sample format, currenly unused
822

    
823
    /* the following data should not be initialized */
824
    /**
825
     * samples per packet. initialized when calling 'init'
826
     */
827
    int frame_size;
828
    int frame_number;   ///< audio or video frame number
829
    int real_pict_num;  ///< returns the real picture number of previous encoded frame
830

    
831
    /**
832
     * number of frames the decoded output will be delayed relative to
833
     * the encoded input.
834
     * - encoding: set by lavc.
835
     * - decoding: unused
836
     */
837
    int delay;
838

    
839
    /* - encoding parameters */
840
    float qcompress;  ///< amount of qscale change between easy & hard scenes (0.0-1.0)
841
    float qblur;      ///< amount of qscale smoothing over time (0.0-1.0)
842

    
843
    /**
844
     * minimum quantizer.
845
     * - encoding: set by user.
846
     * - decoding: unused
847
     */
848
    int qmin;
849

    
850
    /**
851
     * maximum quantizer.
852
     * - encoding: set by user.
853
     * - decoding: unused
854
     */
855
    int qmax;
856

    
857
    /**
858
     * maximum quantizer difference etween frames.
859
     * - encoding: set by user.
860
     * - decoding: unused
861
     */
862
    int max_qdiff;
863

    
864
    /**
865
     * maximum number of b frames between non b frames.
866
     * note: the output will be delayed by max_b_frames+1 relative to the input
867
     * - encoding: set by user.
868
     * - decoding: unused
869
     */
870
    int max_b_frames;
871

    
872
    /**
873
     * qscale factor between ip and b frames.
874
     * - encoding: set by user.
875
     * - decoding: unused
876
     */
877
    float b_quant_factor;
878

    
879
    /** obsolete FIXME remove */
880
    int rc_strategy;
881
    int b_frame_strategy;
882

    
883
    /**
884
     * hurry up amount.
885
     * deprecated in favor of skip_idct and skip_frame
886
     * - encoding: unused
887
     * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
888
     */
889
    int hurry_up;
890

    
891
    struct AVCodec *codec;
892

    
893
    void *priv_data;
894

    
895
    /* unused, FIXME remove*/
896
    int rtp_mode;
897

    
898
    int rtp_payload_size;   /* The size of the RTP payload: the coder will  */
899
                            /* do it's best to deliver a chunk with size    */
900
                            /* below rtp_payload_size, the chunk will start */
901
                            /* with a start code on some codecs like H.263  */
902
                            /* This doesn't take account of any particular  */
903
                            /* headers inside the transmited RTP payload    */
904

    
905

    
906
    /* The RTP callback: This function is called   */
907
    /* every time the encoder has a packet to send */
908
    /* Depends on the encoder if the data starts   */
909
    /* with a Start Code (it should) H.263 does.   */
910
    /* mb_nb contains the number of macroblocks    */
911
    /* encoded in the RTP payload                  */
912
    void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb);
913

    
914
    /* statistics, used for 2-pass encoding */
915
    int mv_bits;
916
    int header_bits;
917
    int i_tex_bits;
918
    int p_tex_bits;
919
    int i_count;
920
    int p_count;
921
    int skip_count;
922
    int misc_bits;
923

    
924
    /**
925
     * number of bits used for the previously encoded frame.
926
     * - encoding: set by lavc
927
     * - decoding: unused
928
     */
929
    int frame_bits;
930

    
931
    /**
932
     * private data of the user, can be used to carry app specific stuff.
933
     * - encoding: set by user
934
     * - decoding: set by user
935
     */
936
    void *opaque;
937

    
938
    char codec_name[32];
939
    enum CodecType codec_type; /* see CODEC_TYPE_xxx */
940
    enum CodecID codec_id; /* see CODEC_ID_xxx */
941

    
942
    /**
943
     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
944
     * this is used to workaround some encoder bugs
945
     * - encoding: set by user, if not then the default based on codec_id will be used
946
     * - decoding: set by user, will be converted to upper case by lavc during init
947
     */
948
    unsigned int codec_tag;
949

    
950
    /**
951
     * workaround bugs in encoders which sometimes cannot be detected automatically.
952
     * - encoding: set by user
953
     * - decoding: set by user
954
     */
955
    int workaround_bugs;
956
#define FF_BUG_AUTODETECT       1  ///< autodetection
957
#define FF_BUG_OLD_MSMPEG4      2
958
#define FF_BUG_XVID_ILACE       4
959
#define FF_BUG_UMP4             8
960
#define FF_BUG_NO_PADDING       16
961
#define FF_BUG_AMV              32
962
#define FF_BUG_AC_VLC           0  ///< will be removed, libavcodec can now handle these non compliant files by default
963
#define FF_BUG_QPEL_CHROMA      64
964
#define FF_BUG_STD_QPEL         128
965
#define FF_BUG_QPEL_CHROMA2     256
966
#define FF_BUG_DIRECT_BLOCKSIZE 512
967
#define FF_BUG_EDGE             1024
968
#define FF_BUG_HPEL_CHROMA      2048
969
#define FF_BUG_DC_CLIP          4096
970
#define FF_BUG_MS               8192 ///< workaround various bugs in microsofts broken decoders
971
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
972

    
973
    /**
974
     * luma single coeff elimination threshold.
975
     * - encoding: set by user
976
     * - decoding: unused
977
     */
978
    int luma_elim_threshold;
979

    
980
    /**
981
     * chroma single coeff elimination threshold.
982
     * - encoding: set by user
983
     * - decoding: unused
984
     */
985
    int chroma_elim_threshold;
986

    
987
    /**
988
     * strictly follow the std (MPEG4, ...).
989
     * - encoding: set by user
990
     * - decoding: unused
991
     */
992
    int strict_std_compliance;
993
#define FF_COMPLIANCE_VERY_STRICT   2 ///< strictly conform to a older more strict version of the spec or reference software
994
#define FF_COMPLIANCE_STRICT        1 ///< strictly conform to all the things in the spec no matter what consequences
995
#define FF_COMPLIANCE_NORMAL        0
996
#define FF_COMPLIANCE_INOFFICIAL   -1 ///< allow inofficial extensions
997
#define FF_COMPLIANCE_EXPERIMENTAL -2 ///< allow non standarized experimental things
998

    
999
    /**
1000
     * qscale offset between ip and b frames.
1001
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1002
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
1003
     * - encoding: set by user.
1004
     * - decoding: unused
1005
     */
1006
    float b_quant_offset;
1007

    
1008
    /**
1009
     * error resilience higher values will detect more errors but may missdetect
1010
     * some more or less valid parts as errors.
1011
     * - encoding: unused
1012
     * - decoding: set by user
1013
     */
1014
    int error_resilience;
1015
#define FF_ER_CAREFUL         1
1016
#define FF_ER_COMPLIANT       2
1017
#define FF_ER_AGGRESSIVE      3
1018
#define FF_ER_VERY_AGGRESSIVE 4
1019

    
1020
    /**
1021
     * called at the beginning of each frame to get a buffer for it.
1022
     * if pic.reference is set then the frame will be read later by lavc
1023
     * avcodec_align_dimensions() should be used to find the required width and
1024
     * height, as they normally need to be rounded up to the next multiple of 16
1025
     * - encoding: unused
1026
     * - decoding: set by lavc, user can override
1027
     */
1028
    int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
1029

    
1030
    /**
1031
     * called to release buffers which where allocated with get_buffer.
1032
     * a released buffer can be reused in get_buffer()
1033
     * pic.data[*] must be set to NULL
1034
     * - encoding: unused
1035
     * - decoding: set by lavc, user can override
1036
     */
1037
    void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
1038

    
1039
    /**
1040
     * if 1 the stream has a 1 frame delay during decoding.
1041
     * - encoding: set by lavc
1042
     * - decoding: set by lavc
1043
     */
1044
    int has_b_frames;
1045

    
1046
    /**
1047
     * number of bytes per packet if constant and known or 0
1048
     * used by some WAV based audio codecs
1049
     */
1050
    int block_align;
1051

    
1052
    int parse_only; /* - decoding only: if true, only parsing is done
1053
                       (function avcodec_parse_frame()). The frame
1054
                       data is returned. Only MPEG codecs support this now. */
1055

    
1056
    /**
1057
     * 0-> h263 quant 1-> mpeg quant.
1058
     * - encoding: set by user.
1059
     * - decoding: unused
1060
     */
1061
    int mpeg_quant;
1062

    
1063
    /**
1064
     * pass1 encoding statistics output buffer.
1065
     * - encoding: set by lavc
1066
     * - decoding: unused
1067
     */
1068
    char *stats_out;
1069

    
1070
    /**
1071
     * pass2 encoding statistics input buffer.
1072
     * concatenated stuff from stats_out of pass1 should be placed here
1073
     * - encoding: allocated/set/freed by user
1074
     * - decoding: unused
1075
     */
1076
    char *stats_in;
1077

    
1078
    /**
1079
     * ratecontrol qmin qmax limiting method.
1080
     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
1081
     * - encoding: set by user.
1082
     * - decoding: unused
1083
     */
1084
    float rc_qsquish;
1085

    
1086
    float rc_qmod_amp;
1087
    int rc_qmod_freq;
1088

    
1089
    /**
1090
     * ratecontrol override, see RcOverride.
1091
     * - encoding: allocated/set/freed by user.
1092
     * - decoding: unused
1093
     */
1094
    RcOverride *rc_override;
1095
    int rc_override_count;
1096

    
1097
    /**
1098
     * rate control equation.
1099
     * - encoding: set by user
1100
     * - decoding: unused
1101
     */
1102
    char *rc_eq;
1103

    
1104
    /**
1105
     * maximum bitrate.
1106
     * - encoding: set by user.
1107
     * - decoding: unused
1108
     */
1109
    int rc_max_rate;
1110

    
1111
    /**
1112
     * minimum bitrate.
1113
     * - encoding: set by user.
1114
     * - decoding: unused
1115
     */
1116
    int rc_min_rate;
1117

    
1118
    /**
1119
     * decoder bitstream buffer size.
1120
     * - encoding: set by user.
1121
     * - decoding: unused
1122
     */
1123
    int rc_buffer_size;
1124
    float rc_buffer_aggressivity;
1125

    
1126
    /**
1127
     * qscale factor between p and i frames.
1128
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1129
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
1130
     * - encoding: set by user.
1131
     * - decoding: unused
1132
     */
1133
    float i_quant_factor;
1134

    
1135
    /**
1136
     * qscale offset between p and i frames.
1137
     * - encoding: set by user.
1138
     * - decoding: unused
1139
     */
1140
    float i_quant_offset;
1141

    
1142
    /**
1143
     * initial complexity for pass1 ratecontrol.
1144
     * - encoding: set by user.
1145
     * - decoding: unused
1146
     */
1147
    float rc_initial_cplx;
1148

    
1149
    /**
1150
     * dct algorithm, see FF_DCT_* below.
1151
     * - encoding: set by user
1152
     * - decoding: unused
1153
     */
1154
    int dct_algo;
1155
#define FF_DCT_AUTO    0
1156
#define FF_DCT_FASTINT 1
1157
#define FF_DCT_INT     2
1158
#define FF_DCT_MMX     3
1159
#define FF_DCT_MLIB    4
1160
#define FF_DCT_ALTIVEC 5
1161
#define FF_DCT_FAAN    6
1162

    
1163
    /**
1164
     * luminance masking (0-> disabled).
1165
     * - encoding: set by user
1166
     * - decoding: unused
1167
     */
1168
    float lumi_masking;
1169

    
1170
    /**
1171
     * temporary complexity masking (0-> disabled).
1172
     * - encoding: set by user
1173
     * - decoding: unused
1174
     */
1175
    float temporal_cplx_masking;
1176

    
1177
    /**
1178
     * spatial complexity masking (0-> disabled).
1179
     * - encoding: set by user
1180
     * - decoding: unused
1181
     */
1182
    float spatial_cplx_masking;
1183

    
1184
    /**
1185
     * p block masking (0-> disabled).
1186
     * - encoding: set by user
1187
     * - decoding: unused
1188
     */
1189
    float p_masking;
1190

    
1191
    /**
1192
     * darkness masking (0-> disabled).
1193
     * - encoding: set by user
1194
     * - decoding: unused
1195
     */
1196
    float dark_masking;
1197

    
1198

    
1199
    /* for binary compatibility */
1200
    int unused;
1201

    
1202
    /**
1203
     * idct algorithm, see FF_IDCT_* below.
1204
     * - encoding: set by user
1205
     * - decoding: set by user
1206
     */
1207
    int idct_algo;
1208
#define FF_IDCT_AUTO         0
1209
#define FF_IDCT_INT          1
1210
#define FF_IDCT_SIMPLE       2
1211
#define FF_IDCT_SIMPLEMMX    3
1212
#define FF_IDCT_LIBMPEG2MMX  4
1213
#define FF_IDCT_PS2          5
1214
#define FF_IDCT_MLIB         6
1215
#define FF_IDCT_ARM          7
1216
#define FF_IDCT_ALTIVEC      8
1217
#define FF_IDCT_SH4          9
1218
#define FF_IDCT_SIMPLEARM    10
1219
#define FF_IDCT_H264         11
1220
#define FF_IDCT_VP3          12
1221
#define FF_IDCT_IPP          13
1222
#define FF_IDCT_XVIDMMX      14
1223

    
1224
    /**
1225
     * slice count.
1226
     * - encoding: set by lavc
1227
     * - decoding: set by user (or 0)
1228
     */
1229
    int slice_count;
1230
    /**
1231
     * slice offsets in the frame in bytes.
1232
     * - encoding: set/allocated by lavc
1233
     * - decoding: set/allocated by user (or NULL)
1234
     */
1235
    int *slice_offset;
1236

    
1237
    /**
1238
     * error concealment flags.
1239
     * - encoding: unused
1240
     * - decoding: set by user
1241
     */
1242
    int error_concealment;
1243
#define FF_EC_GUESS_MVS   1
1244
#define FF_EC_DEBLOCK     2
1245

    
1246
    /**
1247
     * dsp_mask could be add used to disable unwanted CPU features
1248
     * CPU features (i.e. MMX, SSE. ...)
1249
     *
1250
     * with FORCE flag you may instead enable given CPU features
1251
     * (Dangerous: usable in case of misdetection, improper usage however will
1252
     * result into program crash)
1253
     */
1254
    unsigned dsp_mask;
1255
#define FF_MM_FORCE    0x80000000 /* force usage of selected flags (OR) */
1256
    /* lower 16 bits - CPU features */
1257
#ifdef HAVE_MMX
1258
#define FF_MM_MMX      0x0001 /* standard MMX */
1259
#define FF_MM_3DNOW    0x0004 /* AMD 3DNOW */
1260
#define FF_MM_MMXEXT   0x0002 /* SSE integer functions or AMD MMX ext */
1261
#define FF_MM_SSE      0x0008 /* SSE functions */
1262
#define FF_MM_SSE2     0x0010 /* PIV SSE2 functions */
1263
#define FF_MM_3DNOWEXT 0x0020 /* AMD 3DNowExt */
1264
#endif /* HAVE_MMX */
1265
#ifdef HAVE_IWMMXT
1266
#define FF_MM_IWMMXT   0x0100 /* XScale IWMMXT */
1267
#endif /* HAVE_IWMMXT */
1268

    
1269
    /**
1270
     * bits per sample/pixel from the demuxer (needed for huffyuv).
1271
     * - encoding: set by lavc
1272
     * - decoding: set by user
1273
     */
1274
     int bits_per_sample;
1275

    
1276
    /**
1277
     * prediction method (needed for huffyuv).
1278
     * - encoding: set by user
1279
     * - decoding: unused
1280
     */
1281
     int prediction_method;
1282
#define FF_PRED_LEFT   0
1283
#define FF_PRED_PLANE  1
1284
#define FF_PRED_MEDIAN 2
1285

    
1286
    /**
1287
     * sample aspect ratio (0 if unknown).
1288
     * numerator and denominator must be relative prime and smaller then 256 for some video standards
1289
     * - encoding: set by user.
1290
     * - decoding: set by lavc.
1291
     */
1292
    AVRational sample_aspect_ratio;
1293

    
1294
    /**
1295
     * the picture in the bitstream.
1296
     * - encoding: set by lavc
1297
     * - decoding: set by lavc
1298
     */
1299
    AVFrame *coded_frame;
1300

    
1301
    /**
1302
     * debug.
1303
     * - encoding: set by user.
1304
     * - decoding: set by user.
1305
     */
1306
    int debug;
1307
#define FF_DEBUG_PICT_INFO 1
1308
#define FF_DEBUG_RC        2
1309
#define FF_DEBUG_BITSTREAM 4
1310
#define FF_DEBUG_MB_TYPE   8
1311
#define FF_DEBUG_QP        16
1312
#define FF_DEBUG_MV        32
1313
#define FF_DEBUG_DCT_COEFF 0x00000040
1314
#define FF_DEBUG_SKIP      0x00000080
1315
#define FF_DEBUG_STARTCODE 0x00000100
1316
#define FF_DEBUG_PTS       0x00000200
1317
#define FF_DEBUG_ER        0x00000400
1318
#define FF_DEBUG_MMCO      0x00000800
1319
#define FF_DEBUG_BUGS      0x00001000
1320
#define FF_DEBUG_VIS_QP    0x00002000
1321
#define FF_DEBUG_VIS_MB_TYPE 0x00004000
1322

    
1323
    /**
1324
     * debug.
1325
     * - encoding: set by user.
1326
     * - decoding: set by user.
1327
     */
1328
    int debug_mv;
1329
#define FF_DEBUG_VIS_MV_P_FOR  0x00000001 //visualize forward predicted MVs of P frames
1330
#define FF_DEBUG_VIS_MV_B_FOR  0x00000002 //visualize forward predicted MVs of B frames
1331
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1332

    
1333
    /**
1334
     * error.
1335
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1336
     * - decoding: unused
1337
     */
1338
    uint64_t error[4];
1339

    
1340
    /**
1341
     * minimum MB quantizer.
1342
     * - encoding: unused
1343
     * - decoding: unused
1344
     */
1345
    int mb_qmin;
1346

    
1347
    /**
1348
     * maximum MB quantizer.
1349
     * - encoding: unused
1350
     * - decoding: unused
1351
     */
1352
    int mb_qmax;
1353

    
1354
    /**
1355
     * motion estimation compare function.
1356
     * - encoding: set by user.
1357
     * - decoding: unused
1358
     */
1359
    int me_cmp;
1360
    /**
1361
     * subpixel motion estimation compare function.
1362
     * - encoding: set by user.
1363
     * - decoding: unused
1364
     */
1365
    int me_sub_cmp;
1366
    /**
1367
     * macroblock compare function (not supported yet).
1368
     * - encoding: set by user.
1369
     * - decoding: unused
1370
     */
1371
    int mb_cmp;
1372
    /**
1373
     * interlaced dct compare function
1374
     * - encoding: set by user.
1375
     * - decoding: unused
1376
     */
1377
    int ildct_cmp;
1378
#define FF_CMP_SAD  0
1379
#define FF_CMP_SSE  1
1380
#define FF_CMP_SATD 2
1381
#define FF_CMP_DCT  3
1382
#define FF_CMP_PSNR 4
1383
#define FF_CMP_BIT  5
1384
#define FF_CMP_RD   6
1385
#define FF_CMP_ZERO 7
1386
#define FF_CMP_VSAD 8
1387
#define FF_CMP_VSSE 9
1388
#define FF_CMP_NSSE 10
1389
#define FF_CMP_W53  11
1390
#define FF_CMP_W97  12
1391
#define FF_CMP_DCTMAX 13
1392
#define FF_CMP_CHROMA 256
1393

    
1394
    /**
1395
     * ME diamond size & shape.
1396
     * - encoding: set by user.
1397
     * - decoding: unused
1398
     */
1399
    int dia_size;
1400

    
1401
    /**
1402
     * amount of previous MV predictors (2a+1 x 2a+1 square).
1403
     * - encoding: set by user.
1404
     * - decoding: unused
1405
     */
1406
    int last_predictor_count;
1407

    
1408
    /**
1409
     * pre pass for motion estimation.
1410
     * - encoding: set by user.
1411
     * - decoding: unused
1412
     */
1413
    int pre_me;
1414

    
1415
    /**
1416
     * motion estimation pre pass compare function.
1417
     * - encoding: set by user.
1418
     * - decoding: unused
1419
     */
1420
    int me_pre_cmp;
1421

    
1422
    /**
1423
     * ME pre pass diamond size & shape.
1424
     * - encoding: set by user.
1425
     * - decoding: unused
1426
     */
1427
    int pre_dia_size;
1428

    
1429
    /**
1430
     * subpel ME quality.
1431
     * - encoding: set by user.
1432
     * - decoding: unused
1433
     */
1434
    int me_subpel_quality;
1435

    
1436
    /**
1437
     * callback to negotiate the pixelFormat.
1438
     * @param fmt is the list of formats which are supported by the codec,
1439
     * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1440
     * the first is allways the native one
1441
     * @return the choosen format
1442
     * - encoding: unused
1443
     * - decoding: set by user, if not set then the native format will always be choosen
1444
     */
1445
    enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
1446

    
1447
    /**
1448
     * DTG active format information (additionnal aspect ratio
1449
     * information only used in DVB MPEG2 transport streams). 0 if
1450
     * not set.
1451
     *
1452
     * - encoding: unused.
1453
     * - decoding: set by decoder
1454
     */
1455
    int dtg_active_format;
1456
#define FF_DTG_AFD_SAME         8
1457
#define FF_DTG_AFD_4_3          9
1458
#define FF_DTG_AFD_16_9         10
1459
#define FF_DTG_AFD_14_9         11
1460
#define FF_DTG_AFD_4_3_SP_14_9  13
1461
#define FF_DTG_AFD_16_9_SP_14_9 14
1462
#define FF_DTG_AFD_SP_4_3       15
1463

    
1464
    /**
1465
     * Maximum motion estimation search range in subpel units.
1466
     * if 0 then no limit
1467
     *
1468
     * - encoding: set by user.
1469
     * - decoding: unused.
1470
     */
1471
    int me_range;
1472

    
1473
    /**
1474
     * intra quantizer bias.
1475
     * - encoding: set by user.
1476
     * - decoding: unused
1477
     */
1478
    int intra_quant_bias;
1479
#define FF_DEFAULT_QUANT_BIAS 999999
1480

    
1481
    /**
1482
     * inter quantizer bias.
1483
     * - encoding: set by user.
1484
     * - decoding: unused
1485
     */
1486
    int inter_quant_bias;
1487

    
1488
    /**
1489
     * color table ID.
1490
     * - encoding: unused.
1491
     * - decoding: which clrtable should be used for 8bit RGB images
1492
     *             table have to be stored somewhere FIXME
1493
     */
1494
    int color_table_id;
1495

    
1496
    /**
1497
     * internal_buffer count.
1498
     * Don't touch, used by lavc default_get_buffer()
1499
     */
1500
    int internal_buffer_count;
1501

    
1502
    /**
1503
     * internal_buffers.
1504
     * Don't touch, used by lavc default_get_buffer()
1505
     */
1506
    void *internal_buffer;
1507

    
1508
#define FF_LAMBDA_SHIFT 7
1509
#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1510
#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1511
#define FF_LAMBDA_MAX (256*128-1)
1512

    
1513
#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
1514
    /**
1515
     * global quality for codecs which cannot change it per frame.
1516
     * this should be proportional to MPEG1/2/4 qscale.
1517
     * - encoding: set by user.
1518
     * - decoding: unused
1519
     */
1520
    int global_quality;
1521

    
1522
#define FF_CODER_TYPE_VLC   0
1523
#define FF_CODER_TYPE_AC    1
1524
    /**
1525
     * coder type
1526
     * - encoding: set by user.
1527
     * - decoding: unused
1528
     */
1529
    int coder_type;
1530

    
1531
    /**
1532
     * context model
1533
     * - encoding: set by user.
1534
     * - decoding: unused
1535
     */
1536
    int context_model;
1537
#if 0
1538
    /**
1539
     *
1540
     * - encoding: unused
1541
     * - decoding: set by user.
1542
     */
1543
    uint8_t * (*realloc)(struct AVCodecContext *s, uint8_t *buf, int buf_size);
1544
#endif
1545

    
1546
    /**
1547
     * slice flags
1548
     * - encoding: unused
1549
     * - decoding: set by user.
1550
     */
1551
    int slice_flags;
1552
#define SLICE_FLAG_CODED_ORDER    0x0001 ///< draw_horiz_band() is called in coded order instead of display
1553
#define SLICE_FLAG_ALLOW_FIELD    0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1554
#define SLICE_FLAG_ALLOW_PLANE    0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1555

    
1556
    /**
1557
     * XVideo Motion Acceleration
1558
     * - encoding: forbidden
1559
     * - decoding: set by decoder
1560
     */
1561
    int xvmc_acceleration;
1562

    
1563
    /**
1564
     * macroblock decision mode
1565
     * - encoding: set by user.
1566
     * - decoding: unused
1567
     */
1568
    int mb_decision;
1569
#define FF_MB_DECISION_SIMPLE 0        ///< uses mb_cmp
1570
#define FF_MB_DECISION_BITS   1        ///< chooses the one which needs the fewest bits
1571
#define FF_MB_DECISION_RD     2        ///< rate distoration
1572

    
1573
    /**
1574
     * custom intra quantization matrix
1575
     * - encoding: set by user, can be NULL
1576
     * - decoding: set by lavc
1577
     */
1578
    uint16_t *intra_matrix;
1579

    
1580
    /**
1581
     * custom inter quantization matrix
1582
     * - encoding: set by user, can be NULL
1583
     * - decoding: set by lavc
1584
     */
1585
    uint16_t *inter_matrix;
1586

    
1587
    /**
1588
     * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1589
     * this is used to workaround some encoder bugs
1590
     * - encoding: unused
1591
     * - decoding: set by user, will be converted to upper case by lavc during init
1592
     */
1593
    unsigned int stream_codec_tag;
1594

    
1595
    /**
1596
     * scene change detection threshold.
1597
     * 0 is default, larger means fewer detected scene changes
1598
     * - encoding: set by user.
1599
     * - decoding: unused
1600
     */
1601
    int scenechange_threshold;
1602

    
1603
    /**
1604
     * minimum lagrange multipler
1605
     * - encoding: set by user.
1606
     * - decoding: unused
1607
     */
1608
    int lmin;
1609

    
1610
    /**
1611
     * maximum lagrange multipler
1612
     * - encoding: set by user.
1613
     * - decoding: unused
1614
     */
1615
    int lmax;
1616

    
1617
    /**
1618
     * Palette control structure
1619
     * - encoding: ??? (no palette-enabled encoder yet)
1620
     * - decoding: set by user.
1621
     */
1622
    struct AVPaletteControl *palctrl;
1623

    
1624
    /**
1625
     * noise reduction strength
1626
     * - encoding: set by user.
1627
     * - decoding: unused
1628
     */
1629
    int noise_reduction;
1630

    
1631
    /**
1632
     * called at the beginning of a frame to get cr buffer for it.
1633
     * buffer type (size, hints) must be the same. lavc won't check it.
1634
     * lavc will pass previous buffer in pic, function should return
1635
     * same buffer or new buffer with old frame "painted" into it.
1636
     * if pic.data[0] == NULL must behave like get_buffer().
1637
     * - encoding: unused
1638
     * - decoding: set by lavc, user can override
1639
     */
1640
    int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
1641

    
1642
    /**
1643
     * number of bits which should be loaded into the rc buffer before decoding starts
1644
     * - encoding: set by user.
1645
     * - decoding: unused
1646
     */
1647
    int rc_initial_buffer_occupancy;
1648

    
1649
    /**
1650
     *
1651
     * - encoding: set by user.
1652
     * - decoding: unused
1653
     */
1654
    int inter_threshold;
1655

    
1656
    /**
1657
     * CODEC_FLAG2_*.
1658
     * - encoding: set by user.
1659
     * - decoding: set by user.
1660
     */
1661
    int flags2;
1662

    
1663
    /**
1664
     * simulates errors in the bitstream to test error concealment.
1665
     * - encoding: set by user.
1666
     * - decoding: unused.
1667
     */
1668
    int error_rate;
1669

    
1670
    /**
1671
     * MP3 antialias algorithm, see FF_AA_* below.
1672
     * - encoding: unused
1673
     * - decoding: set by user
1674
     */
1675
    int antialias_algo;
1676
#define FF_AA_AUTO    0
1677
#define FF_AA_FASTINT 1 //not implemented yet
1678
#define FF_AA_INT     2
1679
#define FF_AA_FLOAT   3
1680
    /**
1681
     * Quantizer noise shaping.
1682
     * - encoding: set by user
1683
     * - decoding: unused
1684
     */
1685
    int quantizer_noise_shaping;
1686

    
1687
    /**
1688
     * Thread count.
1689
     * is used to decide how many independant tasks should be passed to execute()
1690
     * - encoding: set by user
1691
     * - decoding: set by user
1692
     */
1693
    int thread_count;
1694

    
1695
    /**
1696
     * the codec may call this to execute several independant things. it will return only after
1697
     * finishing all tasks, the user may replace this with some multithreaded implementation, the
1698
     * default implementation will execute the parts serially
1699
     * @param count the number of things to execute
1700
     * - encoding: set by lavc, user can override
1701
     * - decoding: set by lavc, user can override
1702
     */
1703
    int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
1704

    
1705
    /**
1706
     * Thread opaque.
1707
     * can be used by execute() to store some per AVCodecContext stuff.
1708
     * - encoding: set by execute()
1709
     * - decoding: set by execute()
1710
     */
1711
    void *thread_opaque;
1712

    
1713
    /**
1714
     * Motion estimation threshold. under which no motion estimation is
1715
     * performed, but instead the user specified motion vectors are used
1716
     *
1717
     * - encoding: set by user
1718
     * - decoding: unused
1719
     */
1720
     int me_threshold;
1721

    
1722
    /**
1723
     * Macroblock threshold. under which the user specified macroblock types will be used
1724
     * - encoding: set by user
1725
     * - decoding: unused
1726
     */
1727
     int mb_threshold;
1728

    
1729
    /**
1730
     * precision of the intra dc coefficient - 8.
1731
     * - encoding: set by user
1732
     * - decoding: unused
1733
     */
1734
     int intra_dc_precision;
1735

    
1736
    /**
1737
     * noise vs. sse weight for the nsse comparsion function.
1738
     * - encoding: set by user
1739
     * - decoding: unused
1740
     */
1741
     int nsse_weight;
1742

    
1743
    /**
1744
     * number of macroblock rows at the top which are skipped.
1745
     * - encoding: unused
1746
     * - decoding: set by user
1747
     */
1748
     int skip_top;
1749

    
1750
    /**
1751
     * number of macroblock rows at the bottom which are skipped.
1752
     * - encoding: unused
1753
     * - decoding: set by user
1754
     */
1755
     int skip_bottom;
1756

    
1757
    /**
1758
     * profile
1759
     * - encoding: set by user
1760
     * - decoding: set by lavc
1761
     */
1762
     int profile;
1763
#define FF_PROFILE_UNKNOWN -99
1764

    
1765
    /**
1766
     * level
1767
     * - encoding: set by user
1768
     * - decoding: set by lavc
1769
     */
1770
     int level;
1771
#define FF_LEVEL_UNKNOWN -99
1772

    
1773
    /**
1774
     * low resolution decoding. 1-> 1/2 size, 2->1/4 size
1775
     * - encoding: unused
1776
     * - decoding: set by user
1777
     */
1778
     int lowres;
1779

    
1780
    /**
1781
     * bitsream width / height. may be different from width/height if lowres
1782
     * or other things are used
1783
     * - encoding: unused
1784
     * - decoding: set by user before init if known, codec should override / dynamically change if needed
1785
     */
1786
    int coded_width, coded_height;
1787

    
1788
    /**
1789
     * frame skip threshold
1790
     * - encoding: set by user
1791
     * - decoding: unused
1792
     */
1793
    int frame_skip_threshold;
1794

    
1795
    /**
1796
     * frame skip factor
1797
     * - encoding: set by user
1798
     * - decoding: unused
1799
     */
1800
    int frame_skip_factor;
1801

    
1802
    /**
1803
     * frame skip exponent
1804
     * - encoding: set by user
1805
     * - decoding: unused
1806
     */
1807
    int frame_skip_exp;
1808

    
1809
    /**
1810
     * frame skip comparission function
1811
     * - encoding: set by user.
1812
     * - decoding: unused
1813
     */
1814
    int frame_skip_cmp;
1815

    
1816
    /**
1817
     * border processing masking. raises the quantizer for mbs on the borders
1818
     * of the picture.
1819
     * - encoding: set by user
1820
     * - decoding: unused
1821
     */
1822
    float border_masking;
1823

    
1824
    /**
1825
     * minimum MB lagrange multipler.
1826
     * - encoding: set by user.
1827
     * - decoding: unused
1828
     */
1829
    int mb_lmin;
1830

    
1831
    /**
1832
     * maximum MB lagrange multipler.
1833
     * - encoding: set by user.
1834
     * - decoding: unused
1835
     */
1836
    int mb_lmax;
1837

    
1838
    /**
1839
     *
1840
     * - encoding: set by user.
1841
     * - decoding: unused
1842
     */
1843
    int me_penalty_compensation;
1844

    
1845
    /**
1846
     *
1847
     * - encoding: unused
1848
     * - decoding: set by user.
1849
     */
1850
    enum AVDiscard skip_loop_filter;
1851

    
1852
    /**
1853
     *
1854
     * - encoding: unused
1855
     * - decoding: set by user.
1856
     */
1857
    enum AVDiscard skip_idct;
1858

    
1859
    /**
1860
     *
1861
     * - encoding: unused
1862
     * - decoding: set by user.
1863
     */
1864
    enum AVDiscard skip_frame;
1865

    
1866
    /**
1867
     *
1868
     * - encoding: set by user.
1869
     * - decoding: unused
1870
     */
1871
    int bidir_refine;
1872
} AVCodecContext;
1873

    
1874
/**
1875
 * AVCodec.
1876
 */
1877
typedef struct AVCodec {
1878
    const char *name;
1879
    enum CodecType type;
1880
    enum CodecID id;
1881
    int priv_data_size;
1882
    int (*init)(AVCodecContext *);
1883
    int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
1884
    int (*close)(AVCodecContext *);
1885
    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
1886
                  uint8_t *buf, int buf_size);
1887
    int capabilities;
1888
#if LIBAVCODEC_VERSION_INT < ((50<<16)+(0<<8)+0)
1889
    void *dummy; // FIXME remove next time we break binary compatibility
1890
#endif
1891
    struct AVCodec *next;
1892
    void (*flush)(AVCodecContext *);
1893
    const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
1894
    const enum PixelFormat *pix_fmts;       ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
1895
} AVCodec;
1896

    
1897
/**
1898
 * four components are given, that's all.
1899
 * the last component is alpha
1900
 */
1901
typedef struct AVPicture {
1902
    uint8_t *data[4];
1903
    int linesize[4];       ///< number of bytes per line
1904
} AVPicture;
1905

    
1906
/**
1907
 * AVPaletteControl
1908
 * This structure defines a method for communicating palette changes
1909
 * between and demuxer and a decoder.
1910
 */
1911
#define AVPALETTE_SIZE 1024
1912
#define AVPALETTE_COUNT 256
1913
typedef struct AVPaletteControl {
1914

    
1915
    /* demuxer sets this to 1 to indicate the palette has changed;
1916
     * decoder resets to 0 */
1917
    int palette_changed;
1918

    
1919
    /* 4-byte ARGB palette entries, stored in native byte order; note that
1920
     * the individual palette components should be on a 8-bit scale; if
1921
     * the palette data comes from a IBM VGA native format, the component
1922
     * data is probably 6 bits in size and needs to be scaled */
1923
    unsigned int palette[AVPALETTE_COUNT];
1924

    
1925
} AVPaletteControl;
1926

    
1927
typedef struct AVSubtitleRect {
1928
    uint16_t x;
1929
    uint16_t y;
1930
    uint16_t w;
1931
    uint16_t h;
1932
    uint16_t nb_colors;
1933
    int linesize;
1934
    uint32_t *rgba_palette;
1935
    uint8_t *bitmap;
1936
} AVSubtitleRect;
1937

    
1938
typedef struct AVSubtitle {
1939
    uint16_t format; /* 0 = graphics */
1940
    uint32_t start_display_time; /* relative to packet pts, in ms */
1941
    uint32_t end_display_time; /* relative to packet pts, in ms */
1942
    uint32_t num_rects;
1943
    AVSubtitleRect *rects;
1944
} AVSubtitle;
1945

    
1946
extern AVCodec ac3_encoder;
1947
extern AVCodec mp2_encoder;
1948
extern AVCodec mp3lame_encoder;
1949
extern AVCodec oggvorbis_encoder;
1950
extern AVCodec oggtheora_encoder;
1951
extern AVCodec faac_encoder;
1952
extern AVCodec xvid_encoder;
1953
extern AVCodec mpeg1video_encoder;
1954
extern AVCodec mpeg2video_encoder;
1955
extern AVCodec h261_encoder;
1956
extern AVCodec h263_encoder;
1957
extern AVCodec h263p_encoder;
1958
extern AVCodec flv_encoder;
1959
extern AVCodec rv10_encoder;
1960
extern AVCodec rv20_encoder;
1961
extern AVCodec dvvideo_encoder;
1962
extern AVCodec mjpeg_encoder;
1963
extern AVCodec ljpeg_encoder;
1964
extern AVCodec jpegls_encoder;
1965
extern AVCodec png_encoder;
1966
extern AVCodec ppm_encoder;
1967
extern AVCodec pgm_encoder;
1968
extern AVCodec pgmyuv_encoder;
1969
extern AVCodec pbm_encoder;
1970
extern AVCodec pam_encoder;
1971
extern AVCodec mpeg4_encoder;
1972
extern AVCodec msmpeg4v1_encoder;
1973
extern AVCodec msmpeg4v2_encoder;
1974
extern AVCodec msmpeg4v3_encoder;
1975
extern AVCodec wmv1_encoder;
1976
extern AVCodec wmv2_encoder;
1977
extern AVCodec huffyuv_encoder;
1978
extern AVCodec ffvhuff_encoder;
1979
extern AVCodec h264_encoder;
1980
extern AVCodec asv1_encoder;
1981
extern AVCodec asv2_encoder;
1982
extern AVCodec vcr1_encoder;
1983
extern AVCodec ffv1_encoder;
1984
extern AVCodec snow_encoder;
1985
extern AVCodec mdec_encoder;
1986
extern AVCodec zlib_encoder;
1987
extern AVCodec sonic_encoder;
1988
extern AVCodec sonic_ls_encoder;
1989
extern AVCodec svq1_encoder;
1990
extern AVCodec x264_encoder;
1991

    
1992
extern AVCodec h263_decoder;
1993
extern AVCodec h261_decoder;
1994
extern AVCodec mpeg4_decoder;
1995
extern AVCodec msmpeg4v1_decoder;
1996
extern AVCodec msmpeg4v2_decoder;
1997
extern AVCodec msmpeg4v3_decoder;
1998
extern AVCodec wmv1_decoder;
1999
extern AVCodec wmv2_decoder;
2000
extern AVCodec vc9_decoder;
2001
extern AVCodec wmv3_decoder;
2002
extern AVCodec mpeg1video_decoder;
2003
extern AVCodec mpeg2video_decoder;
2004
extern AVCodec mpegvideo_decoder;
2005
extern AVCodec mpeg_xvmc_decoder;
2006
extern AVCodec h263i_decoder;
2007
extern AVCodec flv_decoder;
2008
extern AVCodec rv10_decoder;
2009
extern AVCodec rv20_decoder;
2010
extern AVCodec rv30_decoder;
2011
extern AVCodec rv40_decoder;
2012
extern AVCodec svq1_decoder;
2013
extern AVCodec svq3_decoder;
2014
extern AVCodec dvvideo_decoder;
2015
extern AVCodec wmav1_decoder;
2016
extern AVCodec wmav2_decoder;
2017
extern AVCodec mjpeg_decoder;
2018
extern AVCodec mjpegb_decoder;
2019
extern AVCodec sp5x_decoder;
2020
extern AVCodec png_decoder;
2021
extern AVCodec mp2_decoder;
2022
extern AVCodec mp3_decoder;
2023
extern AVCodec mp3adu_decoder;
2024
extern AVCodec mp3on4_decoder;
2025
extern AVCodec qdm2_decoder;
2026
extern AVCodec cook_decoder;
2027
extern AVCodec mace3_decoder;
2028
extern AVCodec mace6_decoder;
2029
extern AVCodec huffyuv_decoder;
2030
extern AVCodec ffvhuff_decoder;
2031
extern AVCodec oggvorbis_decoder;
2032
extern AVCodec oggtheora_decoder;
2033
extern AVCodec cyuv_decoder;
2034
extern AVCodec h264_decoder;
2035
extern AVCodec indeo3_decoder;
2036
extern AVCodec vp3_decoder;
2037
extern AVCodec theora_decoder;
2038
extern AVCodec amr_nb_decoder;
2039
extern AVCodec amr_nb_encoder;
2040
extern AVCodec amr_wb_encoder;
2041
extern AVCodec amr_wb_decoder;
2042
extern AVCodec aac_decoder;
2043
extern AVCodec mpeg4aac_decoder;
2044
extern AVCodec asv1_decoder;
2045
extern AVCodec asv2_decoder;
2046
extern AVCodec vcr1_decoder;
2047
extern AVCodec cljr_decoder;
2048
extern AVCodec ffv1_decoder;
2049
extern AVCodec snow_decoder;
2050
extern AVCodec fourxm_decoder;
2051
extern AVCodec mdec_decoder;
2052
extern AVCodec roq_decoder;
2053
extern AVCodec interplay_video_decoder;
2054
extern AVCodec xan_wc3_decoder;
2055
extern AVCodec rpza_decoder;
2056
extern AVCodec cinepak_decoder;
2057
extern AVCodec msrle_decoder;
2058
extern AVCodec msvideo1_decoder;
2059
extern AVCodec vqa_decoder;
2060
extern AVCodec idcin_decoder;
2061
extern AVCodec eightbps_decoder;
2062
extern AVCodec smc_decoder;
2063
extern AVCodec flic_decoder;
2064
extern AVCodec vmdvideo_decoder;
2065
extern AVCodec vmdaudio_decoder;
2066
extern AVCodec truemotion1_decoder;
2067
extern AVCodec truemotion2_decoder;
2068
extern AVCodec mszh_decoder;
2069
extern AVCodec zlib_decoder;
2070
extern AVCodec ra_144_decoder;
2071
extern AVCodec ra_288_decoder;
2072
extern AVCodec roq_dpcm_decoder;
2073
extern AVCodec interplay_dpcm_decoder;
2074
extern AVCodec xan_dpcm_decoder;
2075
extern AVCodec sol_dpcm_decoder;
2076
extern AVCodec sonic_decoder;
2077
extern AVCodec qtrle_decoder;
2078
extern AVCodec flac_decoder;
2079
extern AVCodec tscc_decoder;
2080
extern AVCodec ulti_decoder;
2081
extern AVCodec qdraw_decoder;
2082
extern AVCodec xl_decoder;
2083
extern AVCodec qpeg_decoder;
2084
extern AVCodec shorten_decoder;
2085
extern AVCodec loco_decoder;
2086
extern AVCodec wnv1_decoder;
2087
extern AVCodec aasc_decoder;
2088
extern AVCodec alac_decoder;
2089
extern AVCodec ws_snd1_decoder;
2090
extern AVCodec indeo2_decoder;
2091
extern AVCodec vorbis_decoder;
2092
extern AVCodec fraps_decoder;
2093
extern AVCodec libgsm_encoder;
2094
extern AVCodec libgsm_decoder;
2095
extern AVCodec bmp_decoder;
2096

    
2097
/* pcm codecs */
2098
#define PCM_CODEC(id, name) \
2099
extern AVCodec name ## _decoder; \
2100
extern AVCodec name ## _encoder
2101

    
2102
PCM_CODEC(CODEC_ID_PCM_S32LE, pcm_s32le);
2103
PCM_CODEC(CODEC_ID_PCM_S32BE, pcm_s32be);
2104
PCM_CODEC(CODEC_ID_PCM_U32LE, pcm_u32le);
2105
PCM_CODEC(CODEC_ID_PCM_U32BE, pcm_u32be);
2106
PCM_CODEC(CODEC_ID_PCM_S24LE, pcm_s24le);
2107
PCM_CODEC(CODEC_ID_PCM_S24BE, pcm_s24be);
2108
PCM_CODEC(CODEC_ID_PCM_U24LE, pcm_u24le);
2109
PCM_CODEC(CODEC_ID_PCM_U24BE, pcm_u24be);
2110
PCM_CODEC(CODEC_ID_PCM_S24DAUD, pcm_s24daud);
2111
PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
2112
PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
2113
PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
2114
PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
2115
PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
2116
PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
2117
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
2118
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
2119

    
2120
/* adpcm codecs */
2121

    
2122
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
2123
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
2124
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
2125
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
2126
PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
2127
PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
2128
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
2129
PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
2130
PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
2131
PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
2132
PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
2133
PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
2134
PCM_CODEC(CODEC_ID_ADPCM_CT, adpcm_ct);
2135
PCM_CODEC(CODEC_ID_ADPCM_SWF, adpcm_swf);
2136
PCM_CODEC(CODEC_ID_ADPCM_YAMAHA, adpcm_yamaha);
2137

    
2138
#undef PCM_CODEC
2139

    
2140
/* dummy raw video codec */
2141
extern AVCodec rawvideo_encoder;
2142
extern AVCodec rawvideo_decoder;
2143

    
2144
/* the following codecs use external GPL libs */
2145
extern AVCodec ac3_decoder;
2146
extern AVCodec dts_decoder;
2147

    
2148
/* subtitles */
2149
extern AVCodec dvdsub_encoder;
2150
extern AVCodec dvdsub_decoder;
2151
extern AVCodec dvbsub_encoder;
2152
extern AVCodec dvbsub_decoder;
2153

    
2154
/* resample.c */
2155

    
2156
struct ReSampleContext;
2157
struct AVResampleContext;
2158

    
2159
typedef struct ReSampleContext ReSampleContext;
2160

    
2161
ReSampleContext *audio_resample_init(int output_channels, int input_channels,
2162
                                     int output_rate, int input_rate);
2163
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
2164
void audio_resample_close(ReSampleContext *s);
2165

    
2166
struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
2167
int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
2168
void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
2169
void av_resample_close(struct AVResampleContext *c);
2170

    
2171
/* YUV420 format is assumed ! */
2172

    
2173
struct ImgReSampleContext;
2174

    
2175
typedef struct ImgReSampleContext ImgReSampleContext;
2176

    
2177
ImgReSampleContext *img_resample_init(int output_width, int output_height,
2178
                                      int input_width, int input_height);
2179

    
2180
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
2181
                                      int iwidth, int iheight,
2182
                                      int topBand, int bottomBand,
2183
                                      int leftBand, int rightBand,
2184
                                      int padtop, int padbottom,
2185
                                      int padleft, int padright);
2186

    
2187

    
2188
void img_resample(ImgReSampleContext *s,
2189
                  AVPicture *output, const AVPicture *input);
2190

    
2191
void img_resample_close(ImgReSampleContext *s);
2192

    
2193
/**
2194
 * Allocate memory for a picture.  Call avpicture_free to free it.
2195
 *
2196
 * @param picture the picture to be filled in.
2197
 * @param pix_fmt the format of the picture.
2198
 * @param width the width of the picture.
2199
 * @param height the height of the picture.
2200
 * @return 0 if successful, -1 if not.
2201
 */
2202
int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
2203

    
2204
/* Free a picture previously allocated by avpicture_alloc. */
2205
void avpicture_free(AVPicture *picture);
2206

    
2207
int avpicture_fill(AVPicture *picture, uint8_t *ptr,
2208
                   int pix_fmt, int width, int height);
2209
int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
2210
                     unsigned char *dest, int dest_size);
2211
int avpicture_get_size(int pix_fmt, int width, int height);
2212
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
2213
const char *avcodec_get_pix_fmt_name(int pix_fmt);
2214
void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
2215
enum PixelFormat avcodec_get_pix_fmt(const char* name);
2216
unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat p);
2217

    
2218
#define FF_LOSS_RESOLUTION  0x0001 /* loss due to resolution change */
2219
#define FF_LOSS_DEPTH       0x0002 /* loss due to color depth change */
2220
#define FF_LOSS_COLORSPACE  0x0004 /* loss due to color space conversion */
2221
#define FF_LOSS_ALPHA       0x0008 /* loss of alpha bits */
2222
#define FF_LOSS_COLORQUANT  0x0010 /* loss due to color quantization */
2223
#define FF_LOSS_CHROMA      0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
2224

    
2225
int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
2226
                             int has_alpha);
2227
int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
2228
                              int has_alpha, int *loss_ptr);
2229

    
2230
#define FF_ALPHA_TRANSP       0x0001 /* image has some totally transparent pixels */
2231
#define FF_ALPHA_SEMI_TRANSP  0x0002 /* image has some transparent pixels */
2232
int img_get_alpha_info(const AVPicture *src,
2233
                       int pix_fmt, int width, int height);
2234

    
2235
/* convert among pixel formats */
2236
int img_convert(AVPicture *dst, int dst_pix_fmt,
2237
                const AVPicture *src, int pix_fmt,
2238
                int width, int height);
2239

    
2240
/* deinterlace a picture */
2241
int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
2242
                          int pix_fmt, int width, int height);
2243

    
2244
/* external high level API */
2245

    
2246
extern AVCodec *first_avcodec;
2247

    
2248
/* returns LIBAVCODEC_VERSION_INT constant */
2249
unsigned avcodec_version(void);
2250
/* returns LIBAVCODEC_BUILD constant */
2251
unsigned avcodec_build(void);
2252
void avcodec_init(void);
2253

    
2254
void register_avcodec(AVCodec *format);
2255
AVCodec *avcodec_find_encoder(enum CodecID id);
2256
AVCodec *avcodec_find_encoder_by_name(const char *name);
2257
AVCodec *avcodec_find_decoder(enum CodecID id);
2258
AVCodec *avcodec_find_decoder_by_name(const char *name);
2259
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
2260

    
2261
void avcodec_get_context_defaults(AVCodecContext *s);
2262
AVCodecContext *avcodec_alloc_context(void);
2263
void avcodec_get_frame_defaults(AVFrame *pic);
2264
AVFrame *avcodec_alloc_frame(void);
2265

    
2266
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
2267
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
2268
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
2269
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
2270
int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h);
2271
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
2272

    
2273
int avcodec_thread_init(AVCodecContext *s, int thread_count);
2274
void avcodec_thread_free(AVCodecContext *s);
2275
int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2276
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2277
//FIXME func typedef
2278

    
2279
/**
2280
 * opens / inits the AVCodecContext.
2281
 * not thread save!
2282
 */
2283
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
2284

    
2285
int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
2286
                         int *frame_size_ptr,
2287
                         uint8_t *buf, int buf_size);
2288
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
2289
                         int *got_picture_ptr,
2290
                         uint8_t *buf, int buf_size);
2291
int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
2292
                            int *got_sub_ptr,
2293
                            const uint8_t *buf, int buf_size);
2294
int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata,
2295
                        int *data_size_ptr,
2296
                        uint8_t *buf, int buf_size);
2297
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2298
                         const short *samples);
2299
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2300
                         const AVFrame *pict);
2301
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2302
                            const AVSubtitle *sub);
2303

    
2304
int avcodec_close(AVCodecContext *avctx);
2305

    
2306
void avcodec_register_all(void);
2307

    
2308
void avcodec_flush_buffers(AVCodecContext *avctx);
2309

    
2310
void avcodec_default_free_buffers(AVCodecContext *s);
2311

    
2312
/* misc usefull functions */
2313

    
2314
/**
2315
 * returns a single letter to describe the picture type
2316
 */
2317
char av_get_pict_type_char(int pict_type);
2318

    
2319

    
2320
/* frame parsing */
2321
typedef struct AVCodecParserContext {
2322
    void *priv_data;
2323
    struct AVCodecParser *parser;
2324
    int64_t frame_offset; /* offset of the current frame */
2325
    int64_t cur_offset; /* current offset
2326
                           (incremented by each av_parser_parse()) */
2327
    int64_t last_frame_offset; /* offset of the last frame */
2328
    /* video info */
2329
    int pict_type; /* XXX: put it back in AVCodecContext */
2330
    int repeat_pict; /* XXX: put it back in AVCodecContext */
2331
    int64_t pts;     /* pts of the current frame */
2332
    int64_t dts;     /* dts of the current frame */
2333

    
2334
    /* private data */
2335
    int64_t last_pts;
2336
    int64_t last_dts;
2337
    int fetch_timestamp;
2338

    
2339
#define AV_PARSER_PTS_NB 4
2340
    int cur_frame_start_index;
2341
    int64_t cur_frame_offset[AV_PARSER_PTS_NB];
2342
    int64_t cur_frame_pts[AV_PARSER_PTS_NB];
2343
    int64_t cur_frame_dts[AV_PARSER_PTS_NB];
2344

    
2345
    int flags;
2346
#define PARSER_FLAG_COMPLETE_FRAMES           0x0001
2347
} AVCodecParserContext;
2348

    
2349
typedef struct AVCodecParser {
2350
    int codec_ids[5]; /* several codec IDs are permitted */
2351
    int priv_data_size;
2352
    int (*parser_init)(AVCodecParserContext *s);
2353
    int (*parser_parse)(AVCodecParserContext *s,
2354
                        AVCodecContext *avctx,
2355
                        uint8_t **poutbuf, int *poutbuf_size,
2356
                        const uint8_t *buf, int buf_size);
2357
    void (*parser_close)(AVCodecParserContext *s);
2358
    int (*split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size);
2359
    struct AVCodecParser *next;
2360
} AVCodecParser;
2361

    
2362
extern AVCodecParser *av_first_parser;
2363

    
2364
void av_register_codec_parser(AVCodecParser *parser);
2365
AVCodecParserContext *av_parser_init(int codec_id);
2366
int av_parser_parse(AVCodecParserContext *s,
2367
                    AVCodecContext *avctx,
2368
                    uint8_t **poutbuf, int *poutbuf_size,
2369
                    const uint8_t *buf, int buf_size,
2370
                    int64_t pts, int64_t dts);
2371
int av_parser_change(AVCodecParserContext *s,
2372
                     AVCodecContext *avctx,
2373
                     uint8_t **poutbuf, int *poutbuf_size,
2374
                     const uint8_t *buf, int buf_size, int keyframe);
2375
void av_parser_close(AVCodecParserContext *s);
2376

    
2377
extern AVCodecParser mpegvideo_parser;
2378
extern AVCodecParser mpeg4video_parser;
2379
extern AVCodecParser h261_parser;
2380
extern AVCodecParser h263_parser;
2381
extern AVCodecParser h264_parser;
2382
extern AVCodecParser mjpeg_parser;
2383
extern AVCodecParser pnm_parser;
2384
extern AVCodecParser mpegaudio_parser;
2385
extern AVCodecParser ac3_parser;
2386
extern AVCodecParser dvdsub_parser;
2387
extern AVCodecParser dvbsub_parser;
2388

    
2389
/* memory */
2390
void *av_malloc(unsigned int size);
2391
void *av_mallocz(unsigned int size);
2392
void *av_realloc(void *ptr, unsigned int size);
2393
void av_free(void *ptr);
2394
char *av_strdup(const char *s);
2395
void av_freep(void *ptr);
2396
void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
2397
/* for static data only */
2398
/* call av_free_static to release all staticaly allocated tables */
2399
void av_free_static(void);
2400
void *av_mallocz_static(unsigned int size);
2401
void *av_realloc_static(void *ptr, unsigned int size);
2402

    
2403
/* add by bero : in adx.c */
2404
int is_adx(const unsigned char *buf,size_t bufsize);
2405

    
2406
void img_copy(AVPicture *dst, const AVPicture *src,
2407
              int pix_fmt, int width, int height);
2408

    
2409
/* av_log API */
2410

    
2411
#include <stdarg.h>
2412

    
2413
#define AV_LOG_QUIET -1
2414
#define AV_LOG_ERROR 0
2415
#define AV_LOG_INFO 1
2416
#define AV_LOG_DEBUG 2
2417

    
2418
#ifdef __GNUC__
2419
extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
2420
#else
2421
extern void av_log(void*, int level, const char *fmt, ...);
2422
#endif
2423

    
2424
extern void av_vlog(void*, int level, const char *fmt, va_list);
2425
extern int av_log_get_level(void);
2426
extern void av_log_set_level(int);
2427
extern void av_log_set_callback(void (*)(void*, int, const char*, va_list));
2428

    
2429
/* endian macros */
2430
#if !defined(BE_16) || !defined(BE_32) || !defined(LE_16) || !defined(LE_32)
2431
#define BE_16(x)  ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
2432
#define BE_32(x)  ((((uint8_t*)(x))[0] << 24) | \
2433
                   (((uint8_t*)(x))[1] << 16) | \
2434
                   (((uint8_t*)(x))[2] << 8) | \
2435
                    ((uint8_t*)(x))[3])
2436
#define LE_16(x)  ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
2437
#define LE_32(x)  ((((uint8_t*)(x))[3] << 24) | \
2438
                   (((uint8_t*)(x))[2] << 16) | \
2439
                   (((uint8_t*)(x))[1] << 8) | \
2440
                    ((uint8_t*)(x))[0])
2441
#endif
2442

    
2443
extern unsigned int av_xiphlacing(unsigned char *s, unsigned int v);
2444

    
2445
#ifdef __cplusplus
2446
}
2447
#endif
2448

    
2449
#endif /* AVCODEC_H */