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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)+(2<<8)+0)
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#define LIBAVCODEC_VERSION      51.2.0
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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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    CODEC_ID_CSCD,
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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_TRUESPEECH,
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    CODEC_ID_TTA,
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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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    ME_HEX,
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    ME_UMH,
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    ME_ITER,
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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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#define CODEC_FLAG2_BPYRAMID      0x00000010 ///< H.264 allow b-frames to be used as references
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#define CODEC_FLAG2_WPRED         0x00000020 ///< H.264 weighted biprediction for b-frames
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#define CODEC_FLAG2_MIXED_REFS    0x00000040 ///< H.264 multiple references per partition
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#define CODEC_FLAG2_8X8DCT        0x00000080 ///< H.264 high profile 8x8 transform
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#define CODEC_FLAG2_FASTPSKIP     0x00000100 ///< H.264 fast pskip
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#define CODEC_FLAG2_AUD           0x00000200 ///< H.264 access unit delimiters
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#define CODEC_FLAG2_BRDO          0x00000400 ///< b-frame rate-distortion optimization
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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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/**
386
 * Codec uses get_buffer() for allocating buffers.
387
 * direct rendering method 1
388
 */
389
#define CODEC_CAP_DR1             0x0002
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/* if 'parse_only' field is true, then avcodec_parse_frame() can be
391
   used */
392
#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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/**
397
 * codec has a non zero delay and needs to be feeded with NULL at the end to get the delayed data.
398
 * if this is not set, the codec is guranteed to never be feeded with NULL data
399
 */
400
#define CODEC_CAP_DELAY           0x0020
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//the following defines may change, don't expect compatibility if you use them
403
#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
419
#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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/**
427
 * Pan Scan area.
428
 * this specifies the area which should be displayed. Note there may be multiple such areas for one frame
429
 */
430
typedef struct AVPanScan{
431
    /**
432
     * id.
433
     * - encoding: set by user.
434
     * - decoding: set by lavc
435
     */
436
    int id;
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438
    /**
439
     * width and height in 1/16 pel
440
     * - encoding: set by user.
441
     * - decoding: set by lavc
442
     */
443
    int width;
444
    int height;
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446
    /**
447
     * position of the top left corner in 1/16 pel for up to 3 fields/frames.
448
     * - encoding: set by user.
449
     * - decoding: set by lavc
450
     */
451
    int16_t position[3][2];
452
}AVPanScan;
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454
#define FF_COMMON_FRAME \
455
    /**\
456
     * pointer to the picture planes.\
457
     * this might be different from the first allocated byte\
458
     * - encoding: \
459
     * - decoding: \
460
     */\
461
    uint8_t *data[4];\
462
    int linesize[4];\
463
    /**\
464
     * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
465
     * this isn't used by lavc unless the default get/release_buffer() is used\
466
     * - encoding: \
467
     * - decoding: \
468
     */\
469
    uint8_t *base[4];\
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    /**\
471
     * 1 -> keyframe, 0-> not\
472
     * - encoding: set by lavc\
473
     * - decoding: set by lavc\
474
     */\
475
    int key_frame;\
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\
477
    /**\
478
     * picture type of the frame, see ?_TYPE below.\
479
     * - encoding: set by lavc for coded_picture (and set by user for input)\
480
     * - decoding: set by lavc\
481
     */\
482
    int pict_type;\
483
\
484
    /**\
485
     * presentation timestamp in time_base units (time when frame should be shown to user)\
486
     * if AV_NOPTS_VALUE then frame_rate = 1/time_base will be assumed\
487
     * - encoding: MUST be set by user\
488
     * - decoding: set by lavc\
489
     */\
490
    int64_t pts;\
491
\
492
    /**\
493
     * picture number in bitstream order.\
494
     * - encoding: set by\
495
     * - decoding: set by lavc\
496
     */\
497
    int coded_picture_number;\
498
    /**\
499
     * picture number in display order.\
500
     * - encoding: set by\
501
     * - decoding: set by lavc\
502
     */\
503
    int display_picture_number;\
504
\
505
    /**\
506
     * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
507
     * - encoding: set by lavc for coded_picture (and set by user for input)\
508
     * - decoding: set by lavc\
509
     */\
510
    int quality; \
511
\
512
    /**\
513
     * buffer age (1->was last buffer and dint change, 2->..., ...).\
514
     * set to INT_MAX if the buffer has not been used yet \
515
     * - encoding: unused\
516
     * - decoding: MUST be set by get_buffer()\
517
     */\
518
    int age;\
519
\
520
    /**\
521
     * is this picture used as reference\
522
     * - encoding: unused\
523
     * - decoding: set by lavc (before get_buffer() call))\
524
     */\
525
    int reference;\
526
\
527
    /**\
528
     * QP table\
529
     * - encoding: unused\
530
     * - decoding: set by lavc\
531
     */\
532
    int8_t *qscale_table;\
533
    /**\
534
     * QP store stride\
535
     * - encoding: unused\
536
     * - decoding: set by lavc\
537
     */\
538
    int qstride;\
539
\
540
    /**\
541
     * mbskip_table[mb]>=1 if MB didnt change\
542
     * stride= mb_width = (width+15)>>4\
543
     * - encoding: unused\
544
     * - decoding: set by lavc\
545
     */\
546
    uint8_t *mbskip_table;\
547
\
548
    /**\
549
     * Motion vector table.\
550
     * @code\
551
     * example:\
552
     * int mv_sample_log2= 4 - motion_subsample_log2;\
553
     * int mb_width= (width+15)>>4;\
554
     * int mv_stride= (mb_width << mv_sample_log2) + 1;\
555
     * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y];\
556
     * @endcode\
557
     * - encoding: set by user\
558
     * - decoding: set by lavc\
559
     */\
560
    int16_t (*motion_val[2])[2];\
561
\
562
    /**\
563
     * Macroblock type table\
564
     * mb_type_base + mb_width + 2\
565
     * - encoding: set by user\
566
     * - decoding: set by lavc\
567
     */\
568
    uint32_t *mb_type;\
569
\
570
    /**\
571
     * log2 of the size of the block which a single vector in motion_val represents: \
572
     * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2)\
573
     * - encoding: unused\
574
     * - decoding: set by lavc\
575
     */\
576
    uint8_t motion_subsample_log2;\
577
\
578
    /**\
579
     * for some private data of the user\
580
     * - encoding: unused\
581
     * - decoding: set by user\
582
     */\
583
    void *opaque;\
584
\
585
    /**\
586
     * error\
587
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
588
     * - decoding: unused\
589
     */\
590
    uint64_t error[4];\
591
\
592
    /**\
593
     * type of the buffer (to keep track of who has to dealloc data[*])\
594
     * - encoding: set by the one who allocs it\
595
     * - decoding: set by the one who allocs it\
596
     * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
597
     */\
598
    int type;\
599
    \
600
    /**\
601
     * when decoding, this signal how much the picture must be delayed.\
602
     * extra_delay = repeat_pict / (2*fps)\
603
     * - encoding: unused\
604
     * - decoding: set by lavc\
605
     */\
606
    int repeat_pict;\
607
    \
608
    /**\
609
     * \
610
     */\
611
    int qscale_type;\
612
    \
613
    /**\
614
     * The content of the picture is interlaced.\
615
     * - encoding: set by user\
616
     * - decoding: set by lavc (default 0)\
617
     */\
618
    int interlaced_frame;\
619
    \
620
    /**\
621
     * if the content is interlaced, is top field displayed first.\
622
     * - encoding: set by user\
623
     * - decoding: set by lavc\
624
     */\
625
    int top_field_first;\
626
    \
627
    /**\
628
     * Pan scan.\
629
     * - encoding: set by user\
630
     * - decoding: set by lavc\
631
     */\
632
    AVPanScan *pan_scan;\
633
    \
634
    /**\
635
     * tell user application that palette has changed from previous frame.\
636
     * - encoding: ??? (no palette-enabled encoder yet)\
637
     * - decoding: set by lavc (default 0)\
638
     */\
639
    int palette_has_changed;\
640
    \
641
    /**\
642
     * Codec suggestion on buffer type if != 0\
643
     * - encoding: unused\
644
     * - decoding: set by lavc (before get_buffer() call))\
645
     */\
646
    int buffer_hints;\
647
\
648
    /**\
649
     * DCT coeffitients\
650
     * - encoding: unused\
651
     * - decoding: set by lavc\
652
     */\
653
    short *dct_coeff;\
654
\
655
    /**\
656
     * Motion referece frame index\
657
     * - encoding: set by user\
658
     * - decoding: set by lavc\
659
     */\
660
    int8_t *ref_index[2];
661

    
662
#define FF_QSCALE_TYPE_MPEG1 0
663
#define FF_QSCALE_TYPE_MPEG2 1
664
#define FF_QSCALE_TYPE_H264  2
665

    
666
#define FF_BUFFER_TYPE_INTERNAL 1
667
#define FF_BUFFER_TYPE_USER     2 ///< Direct rendering buffers (image is (de)allocated by user)
668
#define FF_BUFFER_TYPE_SHARED   4 ///< buffer from somewhere else, don't dealloc image (data/base), all other tables are not shared
669
#define FF_BUFFER_TYPE_COPY     8 ///< just a (modified) copy of some other buffer, don't dealloc anything
670

    
671

    
672
#define FF_I_TYPE 1 // Intra
673
#define FF_P_TYPE 2 // Predicted
674
#define FF_B_TYPE 3 // Bi-dir predicted
675
#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
676
#define FF_SI_TYPE 5
677
#define FF_SP_TYPE 6
678

    
679
#define FF_BUFFER_HINTS_VALID    0x01 // Buffer hints value is meaningful (if 0 ignore)
680
#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
681
#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
682
#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
683

    
684
/**
685
 * Audio Video Frame.
686
 */
687
typedef struct AVFrame {
688
    FF_COMMON_FRAME
689
} AVFrame;
690

    
691
#define DEFAULT_FRAME_RATE_BASE 1001000
692

    
693
/**
694
 * Used by av_log
695
 */
696
typedef struct AVCLASS AVClass;
697
struct AVCLASS {
698
    const char* class_name;
699
    const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext
700
                                        or AVFormatContext, which begin with an AVClass.
701
                                        Needed because av_log is in libavcodec and has no visibility
702
                                        of AVIn/OutputFormat */
703
    struct AVOption *option;
704
};
705

    
706
/**
707
 * main external api structure.
708
 */
709
typedef struct AVCodecContext {
710
    /**
711
     * Info on struct for av_log
712
     * - set by avcodec_alloc_context
713
     */
714
    AVClass *av_class;
715
    /**
716
     * the average bitrate.
717
     * - encoding: set by user. unused for constant quantizer encoding
718
     * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream
719
     */
720
    int bit_rate;
721

    
722
    /**
723
     * number of bits the bitstream is allowed to diverge from the reference.
724
     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
725
     * - encoding: set by user. unused for constant quantizer encoding
726
     * - decoding: unused
727
     */
728
    int bit_rate_tolerance;
729

    
730
    /**
731
     * CODEC_FLAG_*.
732
     * - encoding: set by user.
733
     * - decoding: set by user.
734
     */
735
    int flags;
736

    
737
    /**
738
     * some codecs needs additionnal format info. It is stored here
739
     * - encoding: set by user.
740
     * - decoding: set by lavc. (FIXME is this ok?)
741
     */
742
    int sub_id;
743

    
744
    /**
745
     * motion estimation algorithm used for video coding.
746
     * 1 (zero), 2 (full), 3 (log), 4 (phods), 5 (epzs), 6 (x1), 7 (hex),
747
     * 8 (umh), 9 (iter) [7, 8 are x264 specific, 9 is snow specific]
748
     * - encoding: MUST be set by user.
749
     * - decoding: unused
750
     */
751
    int me_method;
752

    
753
    /**
754
     * some codecs need / can use extra-data like huffman tables.
755
     * mjpeg: huffman tables
756
     * rv10: additional flags
757
     * mpeg4: global headers (they can be in the bitstream or here)
758
     * the allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
759
     * then extradata_size to avoid prolems if its read with the bitstream reader
760
     * the bytewise contents of extradata must not depend on the architecture or cpu endianness
761
     * - encoding: set/allocated/freed by lavc.
762
     * - decoding: set/allocated/freed by user.
763
     */
764
    void *extradata;
765
    int extradata_size;
766

    
767
    /**
768
     * this is the fundamental unit of time (in seconds) in terms
769
     * of which frame timestamps are represented. for fixed-fps content,
770
     * timebase should be 1/framerate and timestamp increments should be
771
     * identically 1.
772
     * - encoding: MUST be set by user
773
     * - decoding: set by lavc.
774
     */
775
    AVRational time_base;
776

    
777
    /* video only */
778
    /**
779
     * picture width / height.
780
     * - encoding: MUST be set by user.
781
     * - decoding: set by lavc.
782
     * Note, for compatibility its possible to set this instead of
783
     * coded_width/height before decoding
784
     */
785
    int width, height;
786

    
787
#define FF_ASPECT_EXTENDED 15
788

    
789
    /**
790
     * the number of pictures in a group of pitures, or 0 for intra_only.
791
     * - encoding: set by user.
792
     * - decoding: unused
793
     */
794
    int gop_size;
795

    
796
    /**
797
     * pixel format, see PIX_FMT_xxx.
798
     * - encoding: set by user.
799
     * - decoding: set by lavc.
800
     */
801
    enum PixelFormat pix_fmt;
802

    
803
    /**
804
     * Frame rate emulation. If not zero lower layer (i.e. format handler)
805
     * has to read frames at native frame rate.
806
     * - encoding: set by user.
807
     * - decoding: unused.
808
     */
809
    int rate_emu;
810

    
811
    /**
812
     * if non NULL, 'draw_horiz_band' is called by the libavcodec
813
     * decoder to draw an horizontal band. It improve cache usage. Not
814
     * all codecs can do that. You must check the codec capabilities
815
     * before
816
     * - encoding: unused
817
     * - decoding: set by user.
818
     * @param height the height of the slice
819
     * @param y the y position of the slice
820
     * @param type 1->top field, 2->bottom field, 3->frame
821
     * @param offset offset into the AVFrame.data from which the slice should be read
822
     */
823
    void (*draw_horiz_band)(struct AVCodecContext *s,
824
                            const AVFrame *src, int offset[4],
825
                            int y, int type, int height);
826

    
827
    /* audio only */
828
    int sample_rate; ///< samples per sec
829
    int channels;
830

    
831
    /**
832
     * audio sample format.
833
     * - encoding: set by user.
834
     * - decoding: set by lavc.
835
     */
836
    enum SampleFormat sample_fmt;  ///< sample format, currenly unused
837

    
838
    /* the following data should not be initialized */
839
    /**
840
     * samples per packet. initialized when calling 'init'
841
     */
842
    int frame_size;
843
    int frame_number;   ///< audio or video frame number
844
    int real_pict_num;  ///< returns the real picture number of previous encoded frame
845

    
846
    /**
847
     * number of frames the decoded output will be delayed relative to
848
     * the encoded input.
849
     * - encoding: set by lavc.
850
     * - decoding: unused
851
     */
852
    int delay;
853

    
854
    /* - encoding parameters */
855
    float qcompress;  ///< amount of qscale change between easy & hard scenes (0.0-1.0)
856
    float qblur;      ///< amount of qscale smoothing over time (0.0-1.0)
857

    
858
    /**
859
     * minimum quantizer.
860
     * - encoding: set by user.
861
     * - decoding: unused
862
     */
863
    int qmin;
864

    
865
    /**
866
     * maximum quantizer.
867
     * - encoding: set by user.
868
     * - decoding: unused
869
     */
870
    int qmax;
871

    
872
    /**
873
     * maximum quantizer difference etween frames.
874
     * - encoding: set by user.
875
     * - decoding: unused
876
     */
877
    int max_qdiff;
878

    
879
    /**
880
     * maximum number of b frames between non b frames.
881
     * note: the output will be delayed by max_b_frames+1 relative to the input
882
     * - encoding: set by user.
883
     * - decoding: unused
884
     */
885
    int max_b_frames;
886

    
887
    /**
888
     * qscale factor between ip and b frames.
889
     * - encoding: set by user.
890
     * - decoding: unused
891
     */
892
    float b_quant_factor;
893

    
894
    /** obsolete FIXME remove */
895
    int rc_strategy;
896
#define FF_RC_STRATEGY_XVID 1
897

    
898
    int b_frame_strategy;
899

    
900
    /**
901
     * hurry up amount.
902
     * deprecated in favor of skip_idct and skip_frame
903
     * - encoding: unused
904
     * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
905
     */
906
    int hurry_up;
907

    
908
    struct AVCodec *codec;
909

    
910
    void *priv_data;
911

    
912
    /* unused, FIXME remove*/
913
    int rtp_mode;
914

    
915
    int rtp_payload_size;   /* The size of the RTP payload: the coder will  */
916
                            /* do it's best to deliver a chunk with size    */
917
                            /* below rtp_payload_size, the chunk will start */
918
                            /* with a start code on some codecs like H.263  */
919
                            /* This doesn't take account of any particular  */
920
                            /* headers inside the transmited RTP payload    */
921

    
922

    
923
    /* The RTP callback: This function is called   */
924
    /* every time the encoder has a packet to send */
925
    /* Depends on the encoder if the data starts   */
926
    /* with a Start Code (it should) H.263 does.   */
927
    /* mb_nb contains the number of macroblocks    */
928
    /* encoded in the RTP payload                  */
929
    void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb);
930

    
931
    /* statistics, used for 2-pass encoding */
932
    int mv_bits;
933
    int header_bits;
934
    int i_tex_bits;
935
    int p_tex_bits;
936
    int i_count;
937
    int p_count;
938
    int skip_count;
939
    int misc_bits;
940

    
941
    /**
942
     * number of bits used for the previously encoded frame.
943
     * - encoding: set by lavc
944
     * - decoding: unused
945
     */
946
    int frame_bits;
947

    
948
    /**
949
     * private data of the user, can be used to carry app specific stuff.
950
     * - encoding: set by user
951
     * - decoding: set by user
952
     */
953
    void *opaque;
954

    
955
    char codec_name[32];
956
    enum CodecType codec_type; /* see CODEC_TYPE_xxx */
957
    enum CodecID codec_id; /* see CODEC_ID_xxx */
958

    
959
    /**
960
     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
961
     * this is used to workaround some encoder bugs
962
     * - encoding: set by user, if not then the default based on codec_id will be used
963
     * - decoding: set by user, will be converted to upper case by lavc during init
964
     */
965
    unsigned int codec_tag;
966

    
967
    /**
968
     * workaround bugs in encoders which sometimes cannot be detected automatically.
969
     * - encoding: set by user
970
     * - decoding: set by user
971
     */
972
    int workaround_bugs;
973
#define FF_BUG_AUTODETECT       1  ///< autodetection
974
#define FF_BUG_OLD_MSMPEG4      2
975
#define FF_BUG_XVID_ILACE       4
976
#define FF_BUG_UMP4             8
977
#define FF_BUG_NO_PADDING       16
978
#define FF_BUG_AMV              32
979
#define FF_BUG_AC_VLC           0  ///< will be removed, libavcodec can now handle these non compliant files by default
980
#define FF_BUG_QPEL_CHROMA      64
981
#define FF_BUG_STD_QPEL         128
982
#define FF_BUG_QPEL_CHROMA2     256
983
#define FF_BUG_DIRECT_BLOCKSIZE 512
984
#define FF_BUG_EDGE             1024
985
#define FF_BUG_HPEL_CHROMA      2048
986
#define FF_BUG_DC_CLIP          4096
987
#define FF_BUG_MS               8192 ///< workaround various bugs in microsofts broken decoders
988
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
989

    
990
    /**
991
     * luma single coeff elimination threshold.
992
     * - encoding: set by user
993
     * - decoding: unused
994
     */
995
    int luma_elim_threshold;
996

    
997
    /**
998
     * chroma single coeff elimination threshold.
999
     * - encoding: set by user
1000
     * - decoding: unused
1001
     */
1002
    int chroma_elim_threshold;
1003

    
1004
    /**
1005
     * strictly follow the std (MPEG4, ...).
1006
     * - encoding: set by user
1007
     * - decoding: unused
1008
     */
1009
    int strict_std_compliance;
1010
#define FF_COMPLIANCE_VERY_STRICT   2 ///< strictly conform to a older more strict version of the spec or reference software
1011
#define FF_COMPLIANCE_STRICT        1 ///< strictly conform to all the things in the spec no matter what consequences
1012
#define FF_COMPLIANCE_NORMAL        0
1013
#define FF_COMPLIANCE_INOFFICIAL   -1 ///< allow inofficial extensions
1014
#define FF_COMPLIANCE_EXPERIMENTAL -2 ///< allow non standarized experimental things
1015

    
1016
    /**
1017
     * qscale offset between ip and b frames.
1018
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1019
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
1020
     * - encoding: set by user.
1021
     * - decoding: unused
1022
     */
1023
    float b_quant_offset;
1024

    
1025
    /**
1026
     * error resilience higher values will detect more errors but may missdetect
1027
     * some more or less valid parts as errors.
1028
     * - encoding: unused
1029
     * - decoding: set by user
1030
     */
1031
    int error_resilience;
1032
#define FF_ER_CAREFUL         1
1033
#define FF_ER_COMPLIANT       2
1034
#define FF_ER_AGGRESSIVE      3
1035
#define FF_ER_VERY_AGGRESSIVE 4
1036

    
1037
    /**
1038
     * called at the beginning of each frame to get a buffer for it.
1039
     * if pic.reference is set then the frame will be read later by lavc
1040
     * avcodec_align_dimensions() should be used to find the required width and
1041
     * height, as they normally need to be rounded up to the next multiple of 16
1042
     * - encoding: unused
1043
     * - decoding: set by lavc, user can override
1044
     */
1045
    int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
1046

    
1047
    /**
1048
     * called to release buffers which where allocated with get_buffer.
1049
     * a released buffer can be reused in get_buffer()
1050
     * pic.data[*] must be set to NULL
1051
     * - encoding: unused
1052
     * - decoding: set by lavc, user can override
1053
     */
1054
    void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
1055

    
1056
    /**
1057
     * if 1 the stream has a 1 frame delay during decoding.
1058
     * - encoding: set by lavc
1059
     * - decoding: set by lavc
1060
     */
1061
    int has_b_frames;
1062

    
1063
    /**
1064
     * number of bytes per packet if constant and known or 0
1065
     * used by some WAV based audio codecs
1066
     */
1067
    int block_align;
1068

    
1069
    int parse_only; /* - decoding only: if true, only parsing is done
1070
                       (function avcodec_parse_frame()). The frame
1071
                       data is returned. Only MPEG codecs support this now. */
1072

    
1073
    /**
1074
     * 0-> h263 quant 1-> mpeg quant.
1075
     * - encoding: set by user.
1076
     * - decoding: unused
1077
     */
1078
    int mpeg_quant;
1079

    
1080
    /**
1081
     * pass1 encoding statistics output buffer.
1082
     * - encoding: set by lavc
1083
     * - decoding: unused
1084
     */
1085
    char *stats_out;
1086

    
1087
    /**
1088
     * pass2 encoding statistics input buffer.
1089
     * concatenated stuff from stats_out of pass1 should be placed here
1090
     * - encoding: allocated/set/freed by user
1091
     * - decoding: unused
1092
     */
1093
    char *stats_in;
1094

    
1095
    /**
1096
     * ratecontrol qmin qmax limiting method.
1097
     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
1098
     * - encoding: set by user.
1099
     * - decoding: unused
1100
     */
1101
    float rc_qsquish;
1102

    
1103
    float rc_qmod_amp;
1104
    int rc_qmod_freq;
1105

    
1106
    /**
1107
     * ratecontrol override, see RcOverride.
1108
     * - encoding: allocated/set/freed by user.
1109
     * - decoding: unused
1110
     */
1111
    RcOverride *rc_override;
1112
    int rc_override_count;
1113

    
1114
    /**
1115
     * rate control equation.
1116
     * - encoding: set by user
1117
     * - decoding: unused
1118
     */
1119
    char *rc_eq;
1120

    
1121
    /**
1122
     * maximum bitrate.
1123
     * - encoding: set by user.
1124
     * - decoding: unused
1125
     */
1126
    int rc_max_rate;
1127

    
1128
    /**
1129
     * minimum bitrate.
1130
     * - encoding: set by user.
1131
     * - decoding: unused
1132
     */
1133
    int rc_min_rate;
1134

    
1135
    /**
1136
     * decoder bitstream buffer size.
1137
     * - encoding: set by user.
1138
     * - decoding: unused
1139
     */
1140
    int rc_buffer_size;
1141
    float rc_buffer_aggressivity;
1142

    
1143
    /**
1144
     * qscale factor between p and i frames.
1145
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1146
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
1147
     * - encoding: set by user.
1148
     * - decoding: unused
1149
     */
1150
    float i_quant_factor;
1151

    
1152
    /**
1153
     * qscale offset between p and i frames.
1154
     * - encoding: set by user.
1155
     * - decoding: unused
1156
     */
1157
    float i_quant_offset;
1158

    
1159
    /**
1160
     * initial complexity for pass1 ratecontrol.
1161
     * - encoding: set by user.
1162
     * - decoding: unused
1163
     */
1164
    float rc_initial_cplx;
1165

    
1166
    /**
1167
     * dct algorithm, see FF_DCT_* below.
1168
     * - encoding: set by user
1169
     * - decoding: unused
1170
     */
1171
    int dct_algo;
1172
#define FF_DCT_AUTO    0
1173
#define FF_DCT_FASTINT 1
1174
#define FF_DCT_INT     2
1175
#define FF_DCT_MMX     3
1176
#define FF_DCT_MLIB    4
1177
#define FF_DCT_ALTIVEC 5
1178
#define FF_DCT_FAAN    6
1179

    
1180
    /**
1181
     * luminance masking (0-> disabled).
1182
     * - encoding: set by user
1183
     * - decoding: unused
1184
     */
1185
    float lumi_masking;
1186

    
1187
    /**
1188
     * temporary complexity masking (0-> disabled).
1189
     * - encoding: set by user
1190
     * - decoding: unused
1191
     */
1192
    float temporal_cplx_masking;
1193

    
1194
    /**
1195
     * spatial complexity masking (0-> disabled).
1196
     * - encoding: set by user
1197
     * - decoding: unused
1198
     */
1199
    float spatial_cplx_masking;
1200

    
1201
    /**
1202
     * p block masking (0-> disabled).
1203
     * - encoding: set by user
1204
     * - decoding: unused
1205
     */
1206
    float p_masking;
1207

    
1208
    /**
1209
     * darkness masking (0-> disabled).
1210
     * - encoding: set by user
1211
     * - decoding: unused
1212
     */
1213
    float dark_masking;
1214

    
1215

    
1216
    /* for binary compatibility */
1217
    int unused;
1218

    
1219
    /**
1220
     * idct algorithm, see FF_IDCT_* below.
1221
     * - encoding: set by user
1222
     * - decoding: set by user
1223
     */
1224
    int idct_algo;
1225
#define FF_IDCT_AUTO         0
1226
#define FF_IDCT_INT          1
1227
#define FF_IDCT_SIMPLE       2
1228
#define FF_IDCT_SIMPLEMMX    3
1229
#define FF_IDCT_LIBMPEG2MMX  4
1230
#define FF_IDCT_PS2          5
1231
#define FF_IDCT_MLIB         6
1232
#define FF_IDCT_ARM          7
1233
#define FF_IDCT_ALTIVEC      8
1234
#define FF_IDCT_SH4          9
1235
#define FF_IDCT_SIMPLEARM    10
1236
#define FF_IDCT_H264         11
1237
#define FF_IDCT_VP3          12
1238
#define FF_IDCT_IPP          13
1239
#define FF_IDCT_XVIDMMX      14
1240

    
1241
    /**
1242
     * slice count.
1243
     * - encoding: set by lavc
1244
     * - decoding: set by user (or 0)
1245
     */
1246
    int slice_count;
1247
    /**
1248
     * slice offsets in the frame in bytes.
1249
     * - encoding: set/allocated by lavc
1250
     * - decoding: set/allocated by user (or NULL)
1251
     */
1252
    int *slice_offset;
1253

    
1254
    /**
1255
     * error concealment flags.
1256
     * - encoding: unused
1257
     * - decoding: set by user
1258
     */
1259
    int error_concealment;
1260
#define FF_EC_GUESS_MVS   1
1261
#define FF_EC_DEBLOCK     2
1262

    
1263
    /**
1264
     * dsp_mask could be add used to disable unwanted CPU features
1265
     * CPU features (i.e. MMX, SSE. ...)
1266
     *
1267
     * with FORCE flag you may instead enable given CPU features
1268
     * (Dangerous: usable in case of misdetection, improper usage however will
1269
     * result into program crash)
1270
     */
1271
    unsigned dsp_mask;
1272
#define FF_MM_FORCE    0x80000000 /* force usage of selected flags (OR) */
1273
    /* lower 16 bits - CPU features */
1274
#ifdef HAVE_MMX
1275
#define FF_MM_MMX      0x0001 /* standard MMX */
1276
#define FF_MM_3DNOW    0x0004 /* AMD 3DNOW */
1277
#define FF_MM_MMXEXT   0x0002 /* SSE integer functions or AMD MMX ext */
1278
#define FF_MM_SSE      0x0008 /* SSE functions */
1279
#define FF_MM_SSE2     0x0010 /* PIV SSE2 functions */
1280
#define FF_MM_3DNOWEXT 0x0020 /* AMD 3DNowExt */
1281
#endif /* HAVE_MMX */
1282
#ifdef HAVE_IWMMXT
1283
#define FF_MM_IWMMXT   0x0100 /* XScale IWMMXT */
1284
#endif /* HAVE_IWMMXT */
1285

    
1286
    /**
1287
     * bits per sample/pixel from the demuxer (needed for huffyuv).
1288
     * - encoding: set by lavc
1289
     * - decoding: set by user
1290
     */
1291
     int bits_per_sample;
1292

    
1293
    /**
1294
     * prediction method (needed for huffyuv).
1295
     * - encoding: set by user
1296
     * - decoding: unused
1297
     */
1298
     int prediction_method;
1299
#define FF_PRED_LEFT   0
1300
#define FF_PRED_PLANE  1
1301
#define FF_PRED_MEDIAN 2
1302

    
1303
    /**
1304
     * sample aspect ratio (0 if unknown).
1305
     * numerator and denominator must be relative prime and smaller then 256 for some video standards
1306
     * - encoding: set by user.
1307
     * - decoding: set by lavc.
1308
     */
1309
    AVRational sample_aspect_ratio;
1310

    
1311
    /**
1312
     * the picture in the bitstream.
1313
     * - encoding: set by lavc
1314
     * - decoding: set by lavc
1315
     */
1316
    AVFrame *coded_frame;
1317

    
1318
    /**
1319
     * debug.
1320
     * - encoding: set by user.
1321
     * - decoding: set by user.
1322
     */
1323
    int debug;
1324
#define FF_DEBUG_PICT_INFO 1
1325
#define FF_DEBUG_RC        2
1326
#define FF_DEBUG_BITSTREAM 4
1327
#define FF_DEBUG_MB_TYPE   8
1328
#define FF_DEBUG_QP        16
1329
#define FF_DEBUG_MV        32
1330
#define FF_DEBUG_DCT_COEFF 0x00000040
1331
#define FF_DEBUG_SKIP      0x00000080
1332
#define FF_DEBUG_STARTCODE 0x00000100
1333
#define FF_DEBUG_PTS       0x00000200
1334
#define FF_DEBUG_ER        0x00000400
1335
#define FF_DEBUG_MMCO      0x00000800
1336
#define FF_DEBUG_BUGS      0x00001000
1337
#define FF_DEBUG_VIS_QP    0x00002000
1338
#define FF_DEBUG_VIS_MB_TYPE 0x00004000
1339

    
1340
    /**
1341
     * debug.
1342
     * - encoding: set by user.
1343
     * - decoding: set by user.
1344
     */
1345
    int debug_mv;
1346
#define FF_DEBUG_VIS_MV_P_FOR  0x00000001 //visualize forward predicted MVs of P frames
1347
#define FF_DEBUG_VIS_MV_B_FOR  0x00000002 //visualize forward predicted MVs of B frames
1348
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1349

    
1350
    /**
1351
     * error.
1352
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1353
     * - decoding: unused
1354
     */
1355
    uint64_t error[4];
1356

    
1357
    /**
1358
     * minimum MB quantizer.
1359
     * - encoding: unused
1360
     * - decoding: unused
1361
     */
1362
    int mb_qmin;
1363

    
1364
    /**
1365
     * maximum MB quantizer.
1366
     * - encoding: unused
1367
     * - decoding: unused
1368
     */
1369
    int mb_qmax;
1370

    
1371
    /**
1372
     * motion estimation compare function.
1373
     * - encoding: set by user.
1374
     * - decoding: unused
1375
     */
1376
    int me_cmp;
1377
    /**
1378
     * subpixel motion estimation compare function.
1379
     * - encoding: set by user.
1380
     * - decoding: unused
1381
     */
1382
    int me_sub_cmp;
1383
    /**
1384
     * macroblock compare function (not supported yet).
1385
     * - encoding: set by user.
1386
     * - decoding: unused
1387
     */
1388
    int mb_cmp;
1389
    /**
1390
     * interlaced dct compare function
1391
     * - encoding: set by user.
1392
     * - decoding: unused
1393
     */
1394
    int ildct_cmp;
1395
#define FF_CMP_SAD  0
1396
#define FF_CMP_SSE  1
1397
#define FF_CMP_SATD 2
1398
#define FF_CMP_DCT  3
1399
#define FF_CMP_PSNR 4
1400
#define FF_CMP_BIT  5
1401
#define FF_CMP_RD   6
1402
#define FF_CMP_ZERO 7
1403
#define FF_CMP_VSAD 8
1404
#define FF_CMP_VSSE 9
1405
#define FF_CMP_NSSE 10
1406
#define FF_CMP_W53  11
1407
#define FF_CMP_W97  12
1408
#define FF_CMP_DCTMAX 13
1409
#define FF_CMP_DCT264 14
1410
#define FF_CMP_CHROMA 256
1411

    
1412
    /**
1413
     * ME diamond size & shape.
1414
     * - encoding: set by user.
1415
     * - decoding: unused
1416
     */
1417
    int dia_size;
1418

    
1419
    /**
1420
     * amount of previous MV predictors (2a+1 x 2a+1 square).
1421
     * - encoding: set by user.
1422
     * - decoding: unused
1423
     */
1424
    int last_predictor_count;
1425

    
1426
    /**
1427
     * pre pass for motion estimation.
1428
     * - encoding: set by user.
1429
     * - decoding: unused
1430
     */
1431
    int pre_me;
1432

    
1433
    /**
1434
     * motion estimation pre pass compare function.
1435
     * - encoding: set by user.
1436
     * - decoding: unused
1437
     */
1438
    int me_pre_cmp;
1439

    
1440
    /**
1441
     * ME pre pass diamond size & shape.
1442
     * - encoding: set by user.
1443
     * - decoding: unused
1444
     */
1445
    int pre_dia_size;
1446

    
1447
    /**
1448
     * subpel ME quality.
1449
     * - encoding: set by user.
1450
     * - decoding: unused
1451
     */
1452
    int me_subpel_quality;
1453

    
1454
    /**
1455
     * callback to negotiate the pixelFormat.
1456
     * @param fmt is the list of formats which are supported by the codec,
1457
     * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1458
     * the first is allways the native one
1459
     * @return the choosen format
1460
     * - encoding: unused
1461
     * - decoding: set by user, if not set then the native format will always be choosen
1462
     */
1463
    enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
1464

    
1465
    /**
1466
     * DTG active format information (additionnal aspect ratio
1467
     * information only used in DVB MPEG2 transport streams). 0 if
1468
     * not set.
1469
     *
1470
     * - encoding: unused.
1471
     * - decoding: set by decoder
1472
     */
1473
    int dtg_active_format;
1474
#define FF_DTG_AFD_SAME         8
1475
#define FF_DTG_AFD_4_3          9
1476
#define FF_DTG_AFD_16_9         10
1477
#define FF_DTG_AFD_14_9         11
1478
#define FF_DTG_AFD_4_3_SP_14_9  13
1479
#define FF_DTG_AFD_16_9_SP_14_9 14
1480
#define FF_DTG_AFD_SP_4_3       15
1481

    
1482
    /**
1483
     * Maximum motion estimation search range in subpel units.
1484
     * if 0 then no limit
1485
     *
1486
     * - encoding: set by user.
1487
     * - decoding: unused.
1488
     */
1489
    int me_range;
1490

    
1491
    /**
1492
     * intra quantizer bias.
1493
     * - encoding: set by user.
1494
     * - decoding: unused
1495
     */
1496
    int intra_quant_bias;
1497
#define FF_DEFAULT_QUANT_BIAS 999999
1498

    
1499
    /**
1500
     * inter quantizer bias.
1501
     * - encoding: set by user.
1502
     * - decoding: unused
1503
     */
1504
    int inter_quant_bias;
1505

    
1506
    /**
1507
     * color table ID.
1508
     * - encoding: unused.
1509
     * - decoding: which clrtable should be used for 8bit RGB images
1510
     *             table have to be stored somewhere FIXME
1511
     */
1512
    int color_table_id;
1513

    
1514
    /**
1515
     * internal_buffer count.
1516
     * Don't touch, used by lavc default_get_buffer()
1517
     */
1518
    int internal_buffer_count;
1519

    
1520
    /**
1521
     * internal_buffers.
1522
     * Don't touch, used by lavc default_get_buffer()
1523
     */
1524
    void *internal_buffer;
1525

    
1526
#define FF_LAMBDA_SHIFT 7
1527
#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1528
#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1529
#define FF_LAMBDA_MAX (256*128-1)
1530

    
1531
#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
1532
    /**
1533
     * global quality for codecs which cannot change it per frame.
1534
     * this should be proportional to MPEG1/2/4 qscale.
1535
     * - encoding: set by user.
1536
     * - decoding: unused
1537
     */
1538
    int global_quality;
1539

    
1540
#define FF_CODER_TYPE_VLC   0
1541
#define FF_CODER_TYPE_AC    1
1542
    /**
1543
     * coder type
1544
     * - encoding: set by user.
1545
     * - decoding: unused
1546
     */
1547
    int coder_type;
1548

    
1549
    /**
1550
     * context model
1551
     * - encoding: set by user.
1552
     * - decoding: unused
1553
     */
1554
    int context_model;
1555
#if 0
1556
    /**
1557
     *
1558
     * - encoding: unused
1559
     * - decoding: set by user.
1560
     */
1561
    uint8_t * (*realloc)(struct AVCodecContext *s, uint8_t *buf, int buf_size);
1562
#endif
1563

    
1564
    /**
1565
     * slice flags
1566
     * - encoding: unused
1567
     * - decoding: set by user.
1568
     */
1569
    int slice_flags;
1570
#define SLICE_FLAG_CODED_ORDER    0x0001 ///< draw_horiz_band() is called in coded order instead of display
1571
#define SLICE_FLAG_ALLOW_FIELD    0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1572
#define SLICE_FLAG_ALLOW_PLANE    0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1573

    
1574
    /**
1575
     * XVideo Motion Acceleration
1576
     * - encoding: forbidden
1577
     * - decoding: set by decoder
1578
     */
1579
    int xvmc_acceleration;
1580

    
1581
    /**
1582
     * macroblock decision mode
1583
     * - encoding: set by user.
1584
     * - decoding: unused
1585
     */
1586
    int mb_decision;
1587
#define FF_MB_DECISION_SIMPLE 0        ///< uses mb_cmp
1588
#define FF_MB_DECISION_BITS   1        ///< chooses the one which needs the fewest bits
1589
#define FF_MB_DECISION_RD     2        ///< rate distoration
1590

    
1591
    /**
1592
     * custom intra quantization matrix
1593
     * - encoding: set by user, can be NULL
1594
     * - decoding: set by lavc
1595
     */
1596
    uint16_t *intra_matrix;
1597

    
1598
    /**
1599
     * custom inter quantization matrix
1600
     * - encoding: set by user, can be NULL
1601
     * - decoding: set by lavc
1602
     */
1603
    uint16_t *inter_matrix;
1604

    
1605
    /**
1606
     * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1607
     * this is used to workaround some encoder bugs
1608
     * - encoding: unused
1609
     * - decoding: set by user, will be converted to upper case by lavc during init
1610
     */
1611
    unsigned int stream_codec_tag;
1612

    
1613
    /**
1614
     * scene change detection threshold.
1615
     * 0 is default, larger means fewer detected scene changes
1616
     * - encoding: set by user.
1617
     * - decoding: unused
1618
     */
1619
    int scenechange_threshold;
1620

    
1621
    /**
1622
     * minimum lagrange multipler
1623
     * - encoding: set by user.
1624
     * - decoding: unused
1625
     */
1626
    int lmin;
1627

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

    
1635
    /**
1636
     * Palette control structure
1637
     * - encoding: ??? (no palette-enabled encoder yet)
1638
     * - decoding: set by user.
1639
     */
1640
    struct AVPaletteControl *palctrl;
1641

    
1642
    /**
1643
     * noise reduction strength
1644
     * - encoding: set by user.
1645
     * - decoding: unused
1646
     */
1647
    int noise_reduction;
1648

    
1649
    /**
1650
     * called at the beginning of a frame to get cr buffer for it.
1651
     * buffer type (size, hints) must be the same. lavc won't check it.
1652
     * lavc will pass previous buffer in pic, function should return
1653
     * same buffer or new buffer with old frame "painted" into it.
1654
     * if pic.data[0] == NULL must behave like get_buffer().
1655
     * - encoding: unused
1656
     * - decoding: set by lavc, user can override
1657
     */
1658
    int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
1659

    
1660
    /**
1661
     * number of bits which should be loaded into the rc buffer before decoding starts
1662
     * - encoding: set by user.
1663
     * - decoding: unused
1664
     */
1665
    int rc_initial_buffer_occupancy;
1666

    
1667
    /**
1668
     *
1669
     * - encoding: set by user.
1670
     * - decoding: unused
1671
     */
1672
    int inter_threshold;
1673

    
1674
    /**
1675
     * CODEC_FLAG2_*.
1676
     * - encoding: set by user.
1677
     * - decoding: set by user.
1678
     */
1679
    int flags2;
1680

    
1681
    /**
1682
     * simulates errors in the bitstream to test error concealment.
1683
     * - encoding: set by user.
1684
     * - decoding: unused.
1685
     */
1686
    int error_rate;
1687

    
1688
    /**
1689
     * MP3 antialias algorithm, see FF_AA_* below.
1690
     * - encoding: unused
1691
     * - decoding: set by user
1692
     */
1693
    int antialias_algo;
1694
#define FF_AA_AUTO    0
1695
#define FF_AA_FASTINT 1 //not implemented yet
1696
#define FF_AA_INT     2
1697
#define FF_AA_FLOAT   3
1698
    /**
1699
     * Quantizer noise shaping.
1700
     * - encoding: set by user
1701
     * - decoding: unused
1702
     */
1703
    int quantizer_noise_shaping;
1704

    
1705
    /**
1706
     * Thread count.
1707
     * is used to decide how many independant tasks should be passed to execute()
1708
     * - encoding: set by user
1709
     * - decoding: set by user
1710
     */
1711
    int thread_count;
1712

    
1713
    /**
1714
     * the codec may call this to execute several independant things. it will return only after
1715
     * finishing all tasks, the user may replace this with some multithreaded implementation, the
1716
     * default implementation will execute the parts serially
1717
     * @param count the number of things to execute
1718
     * - encoding: set by lavc, user can override
1719
     * - decoding: set by lavc, user can override
1720
     */
1721
    int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
1722

    
1723
    /**
1724
     * Thread opaque.
1725
     * can be used by execute() to store some per AVCodecContext stuff.
1726
     * - encoding: set by execute()
1727
     * - decoding: set by execute()
1728
     */
1729
    void *thread_opaque;
1730

    
1731
    /**
1732
     * Motion estimation threshold. under which no motion estimation is
1733
     * performed, but instead the user specified motion vectors are used
1734
     *
1735
     * - encoding: set by user
1736
     * - decoding: unused
1737
     */
1738
     int me_threshold;
1739

    
1740
    /**
1741
     * Macroblock threshold. under which the user specified macroblock types will be used
1742
     * - encoding: set by user
1743
     * - decoding: unused
1744
     */
1745
     int mb_threshold;
1746

    
1747
    /**
1748
     * precision of the intra dc coefficient - 8.
1749
     * - encoding: set by user
1750
     * - decoding: unused
1751
     */
1752
     int intra_dc_precision;
1753

    
1754
    /**
1755
     * noise vs. sse weight for the nsse comparsion function.
1756
     * - encoding: set by user
1757
     * - decoding: unused
1758
     */
1759
     int nsse_weight;
1760

    
1761
    /**
1762
     * number of macroblock rows at the top which are skipped.
1763
     * - encoding: unused
1764
     * - decoding: set by user
1765
     */
1766
     int skip_top;
1767

    
1768
    /**
1769
     * number of macroblock rows at the bottom which are skipped.
1770
     * - encoding: unused
1771
     * - decoding: set by user
1772
     */
1773
     int skip_bottom;
1774

    
1775
    /**
1776
     * profile
1777
     * - encoding: set by user
1778
     * - decoding: set by lavc
1779
     */
1780
     int profile;
1781
#define FF_PROFILE_UNKNOWN -99
1782

    
1783
    /**
1784
     * level
1785
     * - encoding: set by user
1786
     * - decoding: set by lavc
1787
     */
1788
     int level;
1789
#define FF_LEVEL_UNKNOWN -99
1790

    
1791
    /**
1792
     * low resolution decoding. 1-> 1/2 size, 2->1/4 size
1793
     * - encoding: unused
1794
     * - decoding: set by user
1795
     */
1796
     int lowres;
1797

    
1798
    /**
1799
     * bitsream width / height. may be different from width/height if lowres
1800
     * or other things are used
1801
     * - encoding: unused
1802
     * - decoding: set by user before init if known, codec should override / dynamically change if needed
1803
     */
1804
    int coded_width, coded_height;
1805

    
1806
    /**
1807
     * frame skip threshold
1808
     * - encoding: set by user
1809
     * - decoding: unused
1810
     */
1811
    int frame_skip_threshold;
1812

    
1813
    /**
1814
     * frame skip factor
1815
     * - encoding: set by user
1816
     * - decoding: unused
1817
     */
1818
    int frame_skip_factor;
1819

    
1820
    /**
1821
     * frame skip exponent
1822
     * - encoding: set by user
1823
     * - decoding: unused
1824
     */
1825
    int frame_skip_exp;
1826

    
1827
    /**
1828
     * frame skip comparission function
1829
     * - encoding: set by user.
1830
     * - decoding: unused
1831
     */
1832
    int frame_skip_cmp;
1833

    
1834
    /**
1835
     * border processing masking. raises the quantizer for mbs on the borders
1836
     * of the picture.
1837
     * - encoding: set by user
1838
     * - decoding: unused
1839
     */
1840
    float border_masking;
1841

    
1842
    /**
1843
     * minimum MB lagrange multipler.
1844
     * - encoding: set by user.
1845
     * - decoding: unused
1846
     */
1847
    int mb_lmin;
1848

    
1849
    /**
1850
     * maximum MB lagrange multipler.
1851
     * - encoding: set by user.
1852
     * - decoding: unused
1853
     */
1854
    int mb_lmax;
1855

    
1856
    /**
1857
     *
1858
     * - encoding: set by user.
1859
     * - decoding: unused
1860
     */
1861
    int me_penalty_compensation;
1862

    
1863
    /**
1864
     *
1865
     * - encoding: unused
1866
     * - decoding: set by user.
1867
     */
1868
    enum AVDiscard skip_loop_filter;
1869

    
1870
    /**
1871
     *
1872
     * - encoding: unused
1873
     * - decoding: set by user.
1874
     */
1875
    enum AVDiscard skip_idct;
1876

    
1877
    /**
1878
     *
1879
     * - encoding: unused
1880
     * - decoding: set by user.
1881
     */
1882
    enum AVDiscard skip_frame;
1883

    
1884
    /**
1885
     *
1886
     * - encoding: set by user.
1887
     * - decoding: unused
1888
     */
1889
    int bidir_refine;
1890

    
1891
    /**
1892
     *
1893
     * - encoding: set by user.
1894
     * - decoding: unused
1895
     */
1896
    int brd_scale;
1897

    
1898
    /**
1899
     * constant rate factor - quality-based VBR - values ~correspond to qps
1900
     * - encoding: set by user.
1901
     * - decoding: unused
1902
     */
1903
    int crf;
1904

    
1905
    /**
1906
     * constant quantization parameter rate control method
1907
     * - encoding: set by user.
1908
     * - decoding: unused
1909
     */
1910
    int cqp;
1911

    
1912
    /**
1913
     * minimum gop size
1914
     * - encoding: set by user.
1915
     * - decoding: unused
1916
     */
1917
    int keyint_min;
1918

    
1919
    /**
1920
     * number of reference frames
1921
     * - encoding: set by user.
1922
     * - decoding: unused
1923
     */
1924
    int refs;
1925

    
1926
    /**
1927
     * chroma qp offset from luma
1928
     * - encoding: set by user.
1929
     * - decoding: unused
1930
     */
1931
    int chromaoffset;
1932

    
1933
    /**
1934
     * influences how often b-frames are used
1935
     * - encoding: set by user.
1936
     * - decoding: unused
1937
     */
1938
    int bframebias;
1939

    
1940
    /**
1941
     * trellis RD quantization
1942
     * - encoding: set by user.
1943
     * - decoding: unused
1944
     */
1945
    int trellis;
1946

    
1947
    /**
1948
     * reduce fluctuations in qp (before curve compression)
1949
     * - encoding: set by user.
1950
     * - decoding: unused
1951
     */
1952
    float complexityblur;
1953

    
1954
    /**
1955
     * in-loop deblocking filter alphac0 parameter
1956
     * alpha is in the range -6...6
1957
     * - encoding: set by user.
1958
     * - decoding: unused
1959
     */
1960
    int deblockalpha;
1961

    
1962
    /**
1963
     * in-loop deblocking filter beta parameter
1964
     * beta is in the range -6...6
1965
     * - encoding: set by user.
1966
     * - decoding: unused
1967
     */
1968
    int deblockbeta;
1969

    
1970
    /**
1971
     * macroblock subpartition sizes to consider - p8x8, p4x4, b8x8, i8x8, i4x4
1972
     * - encoding: set by user.
1973
     * - decoding: unused
1974
     */
1975
    int partitions;
1976
#define X264_PART_I4X4 0x001  /* Analyse i4x4 */
1977
#define X264_PART_I8X8 0x002  /* Analyse i8x8 (requires 8x8 transform) */
1978
#define X264_PART_P8X8 0x010  /* Analyse p16x8, p8x16 and p8x8 */
1979
#define X264_PART_P4X4 0x020  /* Analyse p8x4, p4x8, p4x4 */
1980
#define X264_PART_B8X8 0x100  /* Analyse b16x8, b8x16 and b8x8 */
1981

    
1982
    /**
1983
     * direct mv prediction mode - 0 (none), 1 (spatial), 2 (temporal)
1984
     * - encoding: set by user.
1985
     * - decoding: unused
1986
     */
1987
    int directpred;
1988

    
1989
    /**
1990
     * audio cutoff bandwidth (0 means "automatic") . Currently used only by FAAC
1991
     * - encoding: set by user.
1992
     * - decoding: unused
1993
     */
1994
    int cutoff;
1995

    
1996
    /**
1997
     * multiplied by qscale for each frame and added to scene_change_score
1998
     * - encoding: set by user.
1999
     * - decoding: unused
2000
     */
2001
    int scenechange_factor;
2002
} AVCodecContext;
2003

    
2004
/**
2005
 * AVCodec.
2006
 */
2007
typedef struct AVCodec {
2008
    const char *name;
2009
    enum CodecType type;
2010
    enum CodecID id;
2011
    int priv_data_size;
2012
    int (*init)(AVCodecContext *);
2013
    int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
2014
    int (*close)(AVCodecContext *);
2015
    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
2016
                  uint8_t *buf, int buf_size);
2017
    int capabilities;
2018
#if LIBAVCODEC_VERSION_INT < ((50<<16)+(0<<8)+0)
2019
    void *dummy; // FIXME remove next time we break binary compatibility
2020
#endif
2021
    struct AVCodec *next;
2022
    void (*flush)(AVCodecContext *);
2023
    const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
2024
    const enum PixelFormat *pix_fmts;       ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
2025
} AVCodec;
2026

    
2027
/**
2028
 * four components are given, that's all.
2029
 * the last component is alpha
2030
 */
2031
typedef struct AVPicture {
2032
    uint8_t *data[4];
2033
    int linesize[4];       ///< number of bytes per line
2034
} AVPicture;
2035

    
2036
/**
2037
 * AVPaletteControl
2038
 * This structure defines a method for communicating palette changes
2039
 * between and demuxer and a decoder.
2040
 */
2041
#define AVPALETTE_SIZE 1024
2042
#define AVPALETTE_COUNT 256
2043
typedef struct AVPaletteControl {
2044

    
2045
    /* demuxer sets this to 1 to indicate the palette has changed;
2046
     * decoder resets to 0 */
2047
    int palette_changed;
2048

    
2049
    /* 4-byte ARGB palette entries, stored in native byte order; note that
2050
     * the individual palette components should be on a 8-bit scale; if
2051
     * the palette data comes from a IBM VGA native format, the component
2052
     * data is probably 6 bits in size and needs to be scaled */
2053
    unsigned int palette[AVPALETTE_COUNT];
2054

    
2055
} AVPaletteControl;
2056

    
2057
typedef struct AVSubtitleRect {
2058
    uint16_t x;
2059
    uint16_t y;
2060
    uint16_t w;
2061
    uint16_t h;
2062
    uint16_t nb_colors;
2063
    int linesize;
2064
    uint32_t *rgba_palette;
2065
    uint8_t *bitmap;
2066
} AVSubtitleRect;
2067

    
2068
typedef struct AVSubtitle {
2069
    uint16_t format; /* 0 = graphics */
2070
    uint32_t start_display_time; /* relative to packet pts, in ms */
2071
    uint32_t end_display_time; /* relative to packet pts, in ms */
2072
    uint32_t num_rects;
2073
    AVSubtitleRect *rects;
2074
} AVSubtitle;
2075

    
2076
extern AVCodec ac3_encoder;
2077
extern AVCodec mp2_encoder;
2078
extern AVCodec mp3lame_encoder;
2079
extern AVCodec oggvorbis_encoder;
2080
extern AVCodec oggtheora_encoder;
2081
extern AVCodec faac_encoder;
2082
extern AVCodec xvid_encoder;
2083
extern AVCodec mpeg1video_encoder;
2084
extern AVCodec mpeg2video_encoder;
2085
extern AVCodec h261_encoder;
2086
extern AVCodec h263_encoder;
2087
extern AVCodec h263p_encoder;
2088
extern AVCodec flv_encoder;
2089
extern AVCodec rv10_encoder;
2090
extern AVCodec rv20_encoder;
2091
extern AVCodec dvvideo_encoder;
2092
extern AVCodec mjpeg_encoder;
2093
extern AVCodec ljpeg_encoder;
2094
extern AVCodec jpegls_encoder;
2095
extern AVCodec png_encoder;
2096
extern AVCodec ppm_encoder;
2097
extern AVCodec pgm_encoder;
2098
extern AVCodec pgmyuv_encoder;
2099
extern AVCodec pbm_encoder;
2100
extern AVCodec pam_encoder;
2101
extern AVCodec mpeg4_encoder;
2102
extern AVCodec msmpeg4v1_encoder;
2103
extern AVCodec msmpeg4v2_encoder;
2104
extern AVCodec msmpeg4v3_encoder;
2105
extern AVCodec wmv1_encoder;
2106
extern AVCodec wmv2_encoder;
2107
extern AVCodec huffyuv_encoder;
2108
extern AVCodec ffvhuff_encoder;
2109
extern AVCodec h264_encoder;
2110
extern AVCodec asv1_encoder;
2111
extern AVCodec asv2_encoder;
2112
extern AVCodec vcr1_encoder;
2113
extern AVCodec ffv1_encoder;
2114
extern AVCodec snow_encoder;
2115
extern AVCodec mdec_encoder;
2116
extern AVCodec zlib_encoder;
2117
extern AVCodec sonic_encoder;
2118
extern AVCodec sonic_ls_encoder;
2119
extern AVCodec svq1_encoder;
2120
extern AVCodec x264_encoder;
2121

    
2122
extern AVCodec h263_decoder;
2123
extern AVCodec h261_decoder;
2124
extern AVCodec mpeg4_decoder;
2125
extern AVCodec msmpeg4v1_decoder;
2126
extern AVCodec msmpeg4v2_decoder;
2127
extern AVCodec msmpeg4v3_decoder;
2128
extern AVCodec wmv1_decoder;
2129
extern AVCodec wmv2_decoder;
2130
extern AVCodec vc9_decoder;
2131
extern AVCodec wmv3_decoder;
2132
extern AVCodec mpeg1video_decoder;
2133
extern AVCodec mpeg2video_decoder;
2134
extern AVCodec mpegvideo_decoder;
2135
extern AVCodec mpeg_xvmc_decoder;
2136
extern AVCodec h263i_decoder;
2137
extern AVCodec flv_decoder;
2138
extern AVCodec rv10_decoder;
2139
extern AVCodec rv20_decoder;
2140
extern AVCodec rv30_decoder;
2141
extern AVCodec rv40_decoder;
2142
extern AVCodec svq1_decoder;
2143
extern AVCodec svq3_decoder;
2144
extern AVCodec dvvideo_decoder;
2145
extern AVCodec wmav1_decoder;
2146
extern AVCodec wmav2_decoder;
2147
extern AVCodec mjpeg_decoder;
2148
extern AVCodec mjpegb_decoder;
2149
extern AVCodec sp5x_decoder;
2150
extern AVCodec png_decoder;
2151
extern AVCodec mp2_decoder;
2152
extern AVCodec mp3_decoder;
2153
extern AVCodec mp3adu_decoder;
2154
extern AVCodec mp3on4_decoder;
2155
extern AVCodec qdm2_decoder;
2156
extern AVCodec cook_decoder;
2157
extern AVCodec truespeech_decoder;
2158
extern AVCodec tta_decoder;
2159
extern AVCodec mace3_decoder;
2160
extern AVCodec mace6_decoder;
2161
extern AVCodec huffyuv_decoder;
2162
extern AVCodec ffvhuff_decoder;
2163
extern AVCodec oggvorbis_decoder;
2164
extern AVCodec oggtheora_decoder;
2165
extern AVCodec cyuv_decoder;
2166
extern AVCodec h264_decoder;
2167
extern AVCodec indeo3_decoder;
2168
extern AVCodec vp3_decoder;
2169
extern AVCodec theora_decoder;
2170
extern AVCodec amr_nb_decoder;
2171
extern AVCodec amr_nb_encoder;
2172
extern AVCodec amr_wb_encoder;
2173
extern AVCodec amr_wb_decoder;
2174
extern AVCodec aac_decoder;
2175
extern AVCodec mpeg4aac_decoder;
2176
extern AVCodec asv1_decoder;
2177
extern AVCodec asv2_decoder;
2178
extern AVCodec vcr1_decoder;
2179
extern AVCodec cljr_decoder;
2180
extern AVCodec ffv1_decoder;
2181
extern AVCodec snow_decoder;
2182
extern AVCodec fourxm_decoder;
2183
extern AVCodec mdec_decoder;
2184
extern AVCodec roq_decoder;
2185
extern AVCodec interplay_video_decoder;
2186
extern AVCodec xan_wc3_decoder;
2187
extern AVCodec rpza_decoder;
2188
extern AVCodec cinepak_decoder;
2189
extern AVCodec msrle_decoder;
2190
extern AVCodec msvideo1_decoder;
2191
extern AVCodec vqa_decoder;
2192
extern AVCodec idcin_decoder;
2193
extern AVCodec eightbps_decoder;
2194
extern AVCodec smc_decoder;
2195
extern AVCodec flic_decoder;
2196
extern AVCodec vmdvideo_decoder;
2197
extern AVCodec vmdaudio_decoder;
2198
extern AVCodec truemotion1_decoder;
2199
extern AVCodec truemotion2_decoder;
2200
extern AVCodec mszh_decoder;
2201
extern AVCodec zlib_decoder;
2202
extern AVCodec ra_144_decoder;
2203
extern AVCodec ra_288_decoder;
2204
extern AVCodec roq_dpcm_decoder;
2205
extern AVCodec interplay_dpcm_decoder;
2206
extern AVCodec xan_dpcm_decoder;
2207
extern AVCodec sol_dpcm_decoder;
2208
extern AVCodec sonic_decoder;
2209
extern AVCodec qtrle_decoder;
2210
extern AVCodec flac_decoder;
2211
extern AVCodec tscc_decoder;
2212
extern AVCodec cscd_decoder;
2213
extern AVCodec ulti_decoder;
2214
extern AVCodec qdraw_decoder;
2215
extern AVCodec xl_decoder;
2216
extern AVCodec qpeg_decoder;
2217
extern AVCodec shorten_decoder;
2218
extern AVCodec loco_decoder;
2219
extern AVCodec wnv1_decoder;
2220
extern AVCodec aasc_decoder;
2221
extern AVCodec alac_decoder;
2222
extern AVCodec ws_snd1_decoder;
2223
extern AVCodec indeo2_decoder;
2224
extern AVCodec vorbis_decoder;
2225
extern AVCodec fraps_decoder;
2226
extern AVCodec libgsm_encoder;
2227
extern AVCodec libgsm_decoder;
2228
extern AVCodec bmp_decoder;
2229

    
2230
/* pcm codecs */
2231
#define PCM_CODEC(id, name) \
2232
extern AVCodec name ## _decoder; \
2233
extern AVCodec name ## _encoder
2234

    
2235
PCM_CODEC(CODEC_ID_PCM_S32LE, pcm_s32le);
2236
PCM_CODEC(CODEC_ID_PCM_S32BE, pcm_s32be);
2237
PCM_CODEC(CODEC_ID_PCM_U32LE, pcm_u32le);
2238
PCM_CODEC(CODEC_ID_PCM_U32BE, pcm_u32be);
2239
PCM_CODEC(CODEC_ID_PCM_S24LE, pcm_s24le);
2240
PCM_CODEC(CODEC_ID_PCM_S24BE, pcm_s24be);
2241
PCM_CODEC(CODEC_ID_PCM_U24LE, pcm_u24le);
2242
PCM_CODEC(CODEC_ID_PCM_U24BE, pcm_u24be);
2243
PCM_CODEC(CODEC_ID_PCM_S24DAUD, pcm_s24daud);
2244
PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
2245
PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
2246
PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
2247
PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
2248
PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
2249
PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
2250
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
2251
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
2252

    
2253
/* adpcm codecs */
2254

    
2255
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
2256
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
2257
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
2258
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
2259
PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
2260
PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
2261
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
2262
PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
2263
PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
2264
PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
2265
PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
2266
PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
2267
PCM_CODEC(CODEC_ID_ADPCM_CT, adpcm_ct);
2268
PCM_CODEC(CODEC_ID_ADPCM_SWF, adpcm_swf);
2269
PCM_CODEC(CODEC_ID_ADPCM_YAMAHA, adpcm_yamaha);
2270

    
2271
#undef PCM_CODEC
2272

    
2273
/* dummy raw video codec */
2274
extern AVCodec rawvideo_encoder;
2275
extern AVCodec rawvideo_decoder;
2276

    
2277
/* the following codecs use external GPL libs */
2278
extern AVCodec ac3_decoder;
2279
extern AVCodec dts_decoder;
2280

    
2281
/* subtitles */
2282
extern AVCodec dvdsub_encoder;
2283
extern AVCodec dvdsub_decoder;
2284
extern AVCodec dvbsub_encoder;
2285
extern AVCodec dvbsub_decoder;
2286

    
2287
/* resample.c */
2288

    
2289
struct ReSampleContext;
2290
struct AVResampleContext;
2291

    
2292
typedef struct ReSampleContext ReSampleContext;
2293

    
2294
ReSampleContext *audio_resample_init(int output_channels, int input_channels,
2295
                                     int output_rate, int input_rate);
2296
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
2297
void audio_resample_close(ReSampleContext *s);
2298

    
2299
struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
2300
int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
2301
void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
2302
void av_resample_close(struct AVResampleContext *c);
2303

    
2304
/* YUV420 format is assumed ! */
2305

    
2306
struct ImgReSampleContext;
2307

    
2308
typedef struct ImgReSampleContext ImgReSampleContext;
2309

    
2310
ImgReSampleContext *img_resample_init(int output_width, int output_height,
2311
                                      int input_width, int input_height);
2312

    
2313
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
2314
                                      int iwidth, int iheight,
2315
                                      int topBand, int bottomBand,
2316
                                      int leftBand, int rightBand,
2317
                                      int padtop, int padbottom,
2318
                                      int padleft, int padright);
2319

    
2320

    
2321
void img_resample(ImgReSampleContext *s,
2322
                  AVPicture *output, const AVPicture *input);
2323

    
2324
void img_resample_close(ImgReSampleContext *s);
2325

    
2326
/**
2327
 * Allocate memory for a picture.  Call avpicture_free to free it.
2328
 *
2329
 * @param picture the picture to be filled in.
2330
 * @param pix_fmt the format of the picture.
2331
 * @param width the width of the picture.
2332
 * @param height the height of the picture.
2333
 * @return 0 if successful, -1 if not.
2334
 */
2335
int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
2336

    
2337
/* Free a picture previously allocated by avpicture_alloc. */
2338
void avpicture_free(AVPicture *picture);
2339

    
2340
int avpicture_fill(AVPicture *picture, uint8_t *ptr,
2341
                   int pix_fmt, int width, int height);
2342
int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
2343
                     unsigned char *dest, int dest_size);
2344
int avpicture_get_size(int pix_fmt, int width, int height);
2345
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
2346
const char *avcodec_get_pix_fmt_name(int pix_fmt);
2347
void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
2348
enum PixelFormat avcodec_get_pix_fmt(const char* name);
2349
unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat p);
2350

    
2351
#define FF_LOSS_RESOLUTION  0x0001 /* loss due to resolution change */
2352
#define FF_LOSS_DEPTH       0x0002 /* loss due to color depth change */
2353
#define FF_LOSS_COLORSPACE  0x0004 /* loss due to color space conversion */
2354
#define FF_LOSS_ALPHA       0x0008 /* loss of alpha bits */
2355
#define FF_LOSS_COLORQUANT  0x0010 /* loss due to color quantization */
2356
#define FF_LOSS_CHROMA      0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
2357

    
2358
int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
2359
                             int has_alpha);
2360
int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
2361
                              int has_alpha, int *loss_ptr);
2362

    
2363
#define FF_ALPHA_TRANSP       0x0001 /* image has some totally transparent pixels */
2364
#define FF_ALPHA_SEMI_TRANSP  0x0002 /* image has some transparent pixels */
2365
int img_get_alpha_info(const AVPicture *src,
2366
                       int pix_fmt, int width, int height);
2367

    
2368
/* convert among pixel formats */
2369
int img_convert(AVPicture *dst, int dst_pix_fmt,
2370
                const AVPicture *src, int pix_fmt,
2371
                int width, int height);
2372

    
2373
/* deinterlace a picture */
2374
int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
2375
                          int pix_fmt, int width, int height);
2376

    
2377
/* external high level API */
2378

    
2379
extern AVCodec *first_avcodec;
2380

    
2381
/* returns LIBAVCODEC_VERSION_INT constant */
2382
unsigned avcodec_version(void);
2383
/* returns LIBAVCODEC_BUILD constant */
2384
unsigned avcodec_build(void);
2385
void avcodec_init(void);
2386

    
2387
void register_avcodec(AVCodec *format);
2388
AVCodec *avcodec_find_encoder(enum CodecID id);
2389
AVCodec *avcodec_find_encoder_by_name(const char *name);
2390
AVCodec *avcodec_find_decoder(enum CodecID id);
2391
AVCodec *avcodec_find_decoder_by_name(const char *name);
2392
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
2393

    
2394
void avcodec_get_context_defaults(AVCodecContext *s);
2395
AVCodecContext *avcodec_alloc_context(void);
2396
void avcodec_get_frame_defaults(AVFrame *pic);
2397
AVFrame *avcodec_alloc_frame(void);
2398

    
2399
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
2400
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
2401
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
2402
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
2403
int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h);
2404
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
2405

    
2406
int avcodec_thread_init(AVCodecContext *s, int thread_count);
2407
void avcodec_thread_free(AVCodecContext *s);
2408
int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2409
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2410
//FIXME func typedef
2411

    
2412
/**
2413
 * opens / inits the AVCodecContext.
2414
 * not thread save!
2415
 */
2416
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
2417

    
2418
int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
2419
                         int *frame_size_ptr,
2420
                         uint8_t *buf, int buf_size);
2421
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
2422
                         int *got_picture_ptr,
2423
                         uint8_t *buf, int buf_size);
2424
int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
2425
                            int *got_sub_ptr,
2426
                            const uint8_t *buf, int buf_size);
2427
int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata,
2428
                        int *data_size_ptr,
2429
                        uint8_t *buf, int buf_size);
2430
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2431
                         const short *samples);
2432
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2433
                         const AVFrame *pict);
2434
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2435
                            const AVSubtitle *sub);
2436

    
2437
int avcodec_close(AVCodecContext *avctx);
2438

    
2439
void avcodec_register_all(void);
2440

    
2441
void avcodec_flush_buffers(AVCodecContext *avctx);
2442

    
2443
void avcodec_default_free_buffers(AVCodecContext *s);
2444

    
2445
/* misc usefull functions */
2446

    
2447
/**
2448
 * returns a single letter to describe the picture type
2449
 */
2450
char av_get_pict_type_char(int pict_type);
2451

    
2452

    
2453
/* frame parsing */
2454
typedef struct AVCodecParserContext {
2455
    void *priv_data;
2456
    struct AVCodecParser *parser;
2457
    int64_t frame_offset; /* offset of the current frame */
2458
    int64_t cur_offset; /* current offset
2459
                           (incremented by each av_parser_parse()) */
2460
    int64_t last_frame_offset; /* offset of the last frame */
2461
    /* video info */
2462
    int pict_type; /* XXX: put it back in AVCodecContext */
2463
    int repeat_pict; /* XXX: put it back in AVCodecContext */
2464
    int64_t pts;     /* pts of the current frame */
2465
    int64_t dts;     /* dts of the current frame */
2466

    
2467
    /* private data */
2468
    int64_t last_pts;
2469
    int64_t last_dts;
2470
    int fetch_timestamp;
2471

    
2472
#define AV_PARSER_PTS_NB 4
2473
    int cur_frame_start_index;
2474
    int64_t cur_frame_offset[AV_PARSER_PTS_NB];
2475
    int64_t cur_frame_pts[AV_PARSER_PTS_NB];
2476
    int64_t cur_frame_dts[AV_PARSER_PTS_NB];
2477

    
2478
    int flags;
2479
#define PARSER_FLAG_COMPLETE_FRAMES           0x0001
2480
} AVCodecParserContext;
2481

    
2482
typedef struct AVCodecParser {
2483
    int codec_ids[5]; /* several codec IDs are permitted */
2484
    int priv_data_size;
2485
    int (*parser_init)(AVCodecParserContext *s);
2486
    int (*parser_parse)(AVCodecParserContext *s,
2487
                        AVCodecContext *avctx,
2488
                        uint8_t **poutbuf, int *poutbuf_size,
2489
                        const uint8_t *buf, int buf_size);
2490
    void (*parser_close)(AVCodecParserContext *s);
2491
    int (*split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size);
2492
    struct AVCodecParser *next;
2493
} AVCodecParser;
2494

    
2495
extern AVCodecParser *av_first_parser;
2496

    
2497
void av_register_codec_parser(AVCodecParser *parser);
2498
AVCodecParserContext *av_parser_init(int codec_id);
2499
int av_parser_parse(AVCodecParserContext *s,
2500
                    AVCodecContext *avctx,
2501
                    uint8_t **poutbuf, int *poutbuf_size,
2502
                    const uint8_t *buf, int buf_size,
2503
                    int64_t pts, int64_t dts);
2504
int av_parser_change(AVCodecParserContext *s,
2505
                     AVCodecContext *avctx,
2506
                     uint8_t **poutbuf, int *poutbuf_size,
2507
                     const uint8_t *buf, int buf_size, int keyframe);
2508
void av_parser_close(AVCodecParserContext *s);
2509

    
2510
extern AVCodecParser mpegvideo_parser;
2511
extern AVCodecParser mpeg4video_parser;
2512
extern AVCodecParser h261_parser;
2513
extern AVCodecParser h263_parser;
2514
extern AVCodecParser h264_parser;
2515
extern AVCodecParser mjpeg_parser;
2516
extern AVCodecParser pnm_parser;
2517
extern AVCodecParser mpegaudio_parser;
2518
extern AVCodecParser ac3_parser;
2519
extern AVCodecParser dvdsub_parser;
2520
extern AVCodecParser dvbsub_parser;
2521
extern AVCodecParser aac_parser;
2522

    
2523
/* memory */
2524
void *av_malloc(unsigned int size);
2525
void *av_mallocz(unsigned int size);
2526
void *av_realloc(void *ptr, unsigned int size);
2527
void av_free(void *ptr);
2528
char *av_strdup(const char *s);
2529
void av_freep(void *ptr);
2530
void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
2531
/* for static data only */
2532
/* call av_free_static to release all staticaly allocated tables */
2533
void av_free_static(void);
2534
void *av_mallocz_static(unsigned int size);
2535
void *av_realloc_static(void *ptr, unsigned int size);
2536

    
2537
/* add by bero : in adx.c */
2538
int is_adx(const unsigned char *buf,size_t bufsize);
2539

    
2540
void img_copy(AVPicture *dst, const AVPicture *src,
2541
              int pix_fmt, int width, int height);
2542

    
2543
/* av_log API */
2544

    
2545
#include <stdarg.h>
2546

    
2547
#define AV_LOG_QUIET -1
2548
#define AV_LOG_ERROR 0
2549
#define AV_LOG_INFO 1
2550
#define AV_LOG_DEBUG 2
2551

    
2552
#ifdef __GNUC__
2553
extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
2554
#else
2555
extern void av_log(void*, int level, const char *fmt, ...);
2556
#endif
2557

    
2558
extern void av_vlog(void*, int level, const char *fmt, va_list);
2559
extern int av_log_get_level(void);
2560
extern void av_log_set_level(int);
2561
extern void av_log_set_callback(void (*)(void*, int, const char*, va_list));
2562

    
2563
/* endian macros */
2564
#if !defined(BE_16) || !defined(BE_32) || !defined(LE_16) || !defined(LE_32)
2565
#define BE_16(x)  ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
2566
#define BE_32(x)  ((((uint8_t*)(x))[0] << 24) | \
2567
                   (((uint8_t*)(x))[1] << 16) | \
2568
                   (((uint8_t*)(x))[2] << 8) | \
2569
                    ((uint8_t*)(x))[3])
2570
#define LE_16(x)  ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
2571
#define LE_32(x)  ((((uint8_t*)(x))[3] << 24) | \
2572
                   (((uint8_t*)(x))[2] << 16) | \
2573
                   (((uint8_t*)(x))[1] << 8) | \
2574
                    ((uint8_t*)(x))[0])
2575
#endif
2576

    
2577
extern unsigned int av_xiphlacing(unsigned char *s, unsigned int v);
2578

    
2579
#ifdef __cplusplus
2580
}
2581
#endif
2582

    
2583
#endif /* AVCODEC_H */