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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_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 */
381
/* codec capabilities */
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#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< decoder can use draw_horiz_band callback
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/**
385
 * Codec uses get_buffer() for allocating buffers.
386
 * direct rendering method 1
387
 */
388
#define CODEC_CAP_DR1             0x0002
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/* if 'parse_only' field is true, then avcodec_parse_frame() can be
390
   used */
391
#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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/**
396
 * codec has a non zero delay and needs to be feeded with NULL at the end to get the delayed data.
397
 * if this is not set, the codec is guranteed to never be feeded with NULL data
398
 */
399
#define CODEC_CAP_DELAY           0x0020
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//the following defines may change, don't expect compatibility if you use them
402
#define MB_TYPE_INTRA4x4   0x0001
403
#define MB_TYPE_INTRA16x16 0x0002 //FIXME h264 specific
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#define MB_TYPE_INTRA_PCM  0x0004 //FIXME h264 specific
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#define MB_TYPE_16x16      0x0008
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#define MB_TYPE_16x8       0x0010
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#define MB_TYPE_8x16       0x0020
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#define MB_TYPE_8x8        0x0040
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#define MB_TYPE_INTERLACED 0x0080
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#define MB_TYPE_DIRECT2     0x0100 //FIXME
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#define MB_TYPE_ACPRED     0x0200
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#define MB_TYPE_GMC        0x0400
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#define MB_TYPE_SKIP       0x0800
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#define MB_TYPE_P0L0       0x1000
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#define MB_TYPE_P1L0       0x2000
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#define MB_TYPE_P0L1       0x4000
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#define MB_TYPE_P1L1       0x8000
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#define MB_TYPE_L0         (MB_TYPE_P0L0 | MB_TYPE_P1L0)
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#define MB_TYPE_L1         (MB_TYPE_P0L1 | MB_TYPE_P1L1)
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#define MB_TYPE_L0L1       (MB_TYPE_L0   | MB_TYPE_L1)
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#define MB_TYPE_QUANT      0x00010000
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#define MB_TYPE_CBP        0x00020000
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//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...)
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/**
426
 * Pan Scan area.
427
 * this specifies the area which should be displayed. Note there may be multiple such areas for one frame
428
 */
429
typedef struct AVPanScan{
430
    /**
431
     * id.
432
     * - encoding: set by user.
433
     * - decoding: set by lavc
434
     */
435
    int id;
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437
    /**
438
     * width and height in 1/16 pel
439
     * - encoding: set by user.
440
     * - decoding: set by lavc
441
     */
442
    int width;
443
    int height;
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445
    /**
446
     * position of the top left corner in 1/16 pel for up to 3 fields/frames.
447
     * - encoding: set by user.
448
     * - decoding: set by lavc
449
     */
450
    int16_t position[3][2];
451
}AVPanScan;
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453
#define FF_COMMON_FRAME \
454
    /**\
455
     * pointer to the picture planes.\
456
     * this might be different from the first allocated byte\
457
     * - encoding: \
458
     * - decoding: \
459
     */\
460
    uint8_t *data[4];\
461
    int linesize[4];\
462
    /**\
463
     * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
464
     * this isn't used by lavc unless the default get/release_buffer() is used\
465
     * - encoding: \
466
     * - decoding: \
467
     */\
468
    uint8_t *base[4];\
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    /**\
470
     * 1 -> keyframe, 0-> not\
471
     * - encoding: set by lavc\
472
     * - decoding: set by lavc\
473
     */\
474
    int key_frame;\
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\
476
    /**\
477
     * picture type of the frame, see ?_TYPE below.\
478
     * - encoding: set by lavc for coded_picture (and set by user for input)\
479
     * - decoding: set by lavc\
480
     */\
481
    int pict_type;\
482
\
483
    /**\
484
     * presentation timestamp in time_base units (time when frame should be shown to user)\
485
     * if AV_NOPTS_VALUE then frame_rate = 1/time_base will be assumed\
486
     * - encoding: MUST be set by user\
487
     * - decoding: set by lavc\
488
     */\
489
    int64_t pts;\
490
\
491
    /**\
492
     * picture number in bitstream order.\
493
     * - encoding: set by\
494
     * - decoding: set by lavc\
495
     */\
496
    int coded_picture_number;\
497
    /**\
498
     * picture number in display order.\
499
     * - encoding: set by\
500
     * - decoding: set by lavc\
501
     */\
502
    int display_picture_number;\
503
\
504
    /**\
505
     * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
506
     * - encoding: set by lavc for coded_picture (and set by user for input)\
507
     * - decoding: set by lavc\
508
     */\
509
    int quality; \
510
\
511
    /**\
512
     * buffer age (1->was last buffer and dint change, 2->..., ...).\
513
     * set to INT_MAX if the buffer has not been used yet \
514
     * - encoding: unused\
515
     * - decoding: MUST be set by get_buffer()\
516
     */\
517
    int age;\
518
\
519
    /**\
520
     * is this picture used as reference\
521
     * - encoding: unused\
522
     * - decoding: set by lavc (before get_buffer() call))\
523
     */\
524
    int reference;\
525
\
526
    /**\
527
     * QP table\
528
     * - encoding: unused\
529
     * - decoding: set by lavc\
530
     */\
531
    int8_t *qscale_table;\
532
    /**\
533
     * QP store stride\
534
     * - encoding: unused\
535
     * - decoding: set by lavc\
536
     */\
537
    int qstride;\
538
\
539
    /**\
540
     * mbskip_table[mb]>=1 if MB didnt change\
541
     * stride= mb_width = (width+15)>>4\
542
     * - encoding: unused\
543
     * - decoding: set by lavc\
544
     */\
545
    uint8_t *mbskip_table;\
546
\
547
    /**\
548
     * Motion vector table.\
549
     * @code\
550
     * example:\
551
     * int mv_sample_log2= 4 - motion_subsample_log2;\
552
     * int mb_width= (width+15)>>4;\
553
     * int mv_stride= (mb_width << mv_sample_log2) + 1;\
554
     * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y];\
555
     * @endcode\
556
     * - encoding: set by user\
557
     * - decoding: set by lavc\
558
     */\
559
    int16_t (*motion_val[2])[2];\
560
\
561
    /**\
562
     * Macroblock type table\
563
     * mb_type_base + mb_width + 2\
564
     * - encoding: set by user\
565
     * - decoding: set by lavc\
566
     */\
567
    uint32_t *mb_type;\
568
\
569
    /**\
570
     * log2 of the size of the block which a single vector in motion_val represents: \
571
     * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2)\
572
     * - encoding: unused\
573
     * - decoding: set by lavc\
574
     */\
575
    uint8_t motion_subsample_log2;\
576
\
577
    /**\
578
     * for some private data of the user\
579
     * - encoding: unused\
580
     * - decoding: set by user\
581
     */\
582
    void *opaque;\
583
\
584
    /**\
585
     * error\
586
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
587
     * - decoding: unused\
588
     */\
589
    uint64_t error[4];\
590
\
591
    /**\
592
     * type of the buffer (to keep track of who has to dealloc data[*])\
593
     * - encoding: set by the one who allocs it\
594
     * - decoding: set by the one who allocs it\
595
     * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
596
     */\
597
    int type;\
598
    \
599
    /**\
600
     * when decoding, this signal how much the picture must be delayed.\
601
     * extra_delay = repeat_pict / (2*fps)\
602
     * - encoding: unused\
603
     * - decoding: set by lavc\
604
     */\
605
    int repeat_pict;\
606
    \
607
    /**\
608
     * \
609
     */\
610
    int qscale_type;\
611
    \
612
    /**\
613
     * The content of the picture is interlaced.\
614
     * - encoding: set by user\
615
     * - decoding: set by lavc (default 0)\
616
     */\
617
    int interlaced_frame;\
618
    \
619
    /**\
620
     * if the content is interlaced, is top field displayed first.\
621
     * - encoding: set by user\
622
     * - decoding: set by lavc\
623
     */\
624
    int top_field_first;\
625
    \
626
    /**\
627
     * Pan scan.\
628
     * - encoding: set by user\
629
     * - decoding: set by lavc\
630
     */\
631
    AVPanScan *pan_scan;\
632
    \
633
    /**\
634
     * tell user application that palette has changed from previous frame.\
635
     * - encoding: ??? (no palette-enabled encoder yet)\
636
     * - decoding: set by lavc (default 0)\
637
     */\
638
    int palette_has_changed;\
639
    \
640
    /**\
641
     * Codec suggestion on buffer type if != 0\
642
     * - encoding: unused\
643
     * - decoding: set by lavc (before get_buffer() call))\
644
     */\
645
    int buffer_hints;\
646
\
647
    /**\
648
     * DCT coeffitients\
649
     * - encoding: unused\
650
     * - decoding: set by lavc\
651
     */\
652
    short *dct_coeff;\
653
\
654
    /**\
655
     * Motion referece frame index\
656
     * - encoding: set by user\
657
     * - decoding: set by lavc\
658
     */\
659
    int8_t *ref_index[2];
660

    
661
#define FF_QSCALE_TYPE_MPEG1 0
662
#define FF_QSCALE_TYPE_MPEG2 1
663
#define FF_QSCALE_TYPE_H264  2
664

    
665
#define FF_BUFFER_TYPE_INTERNAL 1
666
#define FF_BUFFER_TYPE_USER     2 ///< Direct rendering buffers (image is (de)allocated by user)
667
#define FF_BUFFER_TYPE_SHARED   4 ///< buffer from somewhere else, don't dealloc image (data/base), all other tables are not shared
668
#define FF_BUFFER_TYPE_COPY     8 ///< just a (modified) copy of some other buffer, don't dealloc anything
669

    
670

    
671
#define FF_I_TYPE 1 // Intra
672
#define FF_P_TYPE 2 // Predicted
673
#define FF_B_TYPE 3 // Bi-dir predicted
674
#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
675
#define FF_SI_TYPE 5
676
#define FF_SP_TYPE 6
677

    
678
#define FF_BUFFER_HINTS_VALID    0x01 // Buffer hints value is meaningful (if 0 ignore)
679
#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
680
#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
681
#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
682

    
683
/**
684
 * Audio Video Frame.
685
 */
686
typedef struct AVFrame {
687
    FF_COMMON_FRAME
688
} AVFrame;
689

    
690
#define DEFAULT_FRAME_RATE_BASE 1001000
691

    
692
/**
693
 * Used by av_log
694
 */
695
typedef struct AVCLASS AVClass;
696
struct AVCLASS {
697
    const char* class_name;
698
    const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext
699
                                        or AVFormatContext, which begin with an AVClass.
700
                                        Needed because av_log is in libavcodec and has no visibility
701
                                        of AVIn/OutputFormat */
702
    struct AVOption *option;
703
};
704

    
705
/**
706
 * main external api structure.
707
 */
708
typedef struct AVCodecContext {
709
    /**
710
     * Info on struct for av_log
711
     * - set by avcodec_alloc_context
712
     */
713
    AVClass *av_class;
714
    /**
715
     * the average bitrate.
716
     * - encoding: set by user. unused for constant quantizer encoding
717
     * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream
718
     */
719
    int bit_rate;
720

    
721
    /**
722
     * number of bits the bitstream is allowed to diverge from the reference.
723
     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
724
     * - encoding: set by user. unused for constant quantizer encoding
725
     * - decoding: unused
726
     */
727
    int bit_rate_tolerance;
728

    
729
    /**
730
     * CODEC_FLAG_*.
731
     * - encoding: set by user.
732
     * - decoding: set by user.
733
     */
734
    int flags;
735

    
736
    /**
737
     * some codecs needs additionnal format info. It is stored here
738
     * - encoding: set by user.
739
     * - decoding: set by lavc. (FIXME is this ok?)
740
     */
741
    int sub_id;
742

    
743
    /**
744
     * motion estimation algorithm used for video coding.
745
     * 1 (zero), 2 (full), 3 (log), 4 (phods), 5 (epzs), 6 (x1), 7 (hex),
746
     * 8 (umh), 9 (iter) [7, 8 are x264 specific, 9 is snow specific]
747
     * - encoding: MUST be set by user.
748
     * - decoding: unused
749
     */
750
    int me_method;
751

    
752
    /**
753
     * some codecs need / can use extra-data like huffman tables.
754
     * mjpeg: huffman tables
755
     * rv10: additional flags
756
     * mpeg4: global headers (they can be in the bitstream or here)
757
     * the allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
758
     * then extradata_size to avoid prolems if its read with the bitstream reader
759
     * the bytewise contents of extradata must not depend on the architecture or cpu endianness
760
     * - encoding: set/allocated/freed by lavc.
761
     * - decoding: set/allocated/freed by user.
762
     */
763
    void *extradata;
764
    int extradata_size;
765

    
766
    /**
767
     * this is the fundamental unit of time (in seconds) in terms
768
     * of which frame timestamps are represented. for fixed-fps content,
769
     * timebase should be 1/framerate and timestamp increments should be
770
     * identically 1.
771
     * - encoding: MUST be set by user
772
     * - decoding: set by lavc.
773
     */
774
    AVRational time_base;
775

    
776
    /* video only */
777
    /**
778
     * picture width / height.
779
     * - encoding: MUST be set by user.
780
     * - decoding: set by lavc.
781
     * Note, for compatibility its possible to set this instead of
782
     * coded_width/height before decoding
783
     */
784
    int width, height;
785

    
786
#define FF_ASPECT_EXTENDED 15
787

    
788
    /**
789
     * the number of pictures in a group of pitures, or 0 for intra_only.
790
     * - encoding: set by user.
791
     * - decoding: unused
792
     */
793
    int gop_size;
794

    
795
    /**
796
     * pixel format, see PIX_FMT_xxx.
797
     * - encoding: set by user.
798
     * - decoding: set by lavc.
799
     */
800
    enum PixelFormat pix_fmt;
801

    
802
    /**
803
     * Frame rate emulation. If not zero lower layer (i.e. format handler)
804
     * has to read frames at native frame rate.
805
     * - encoding: set by user.
806
     * - decoding: unused.
807
     */
808
    int rate_emu;
809

    
810
    /**
811
     * if non NULL, 'draw_horiz_band' is called by the libavcodec
812
     * decoder to draw an horizontal band. It improve cache usage. Not
813
     * all codecs can do that. You must check the codec capabilities
814
     * before
815
     * - encoding: unused
816
     * - decoding: set by user.
817
     * @param height the height of the slice
818
     * @param y the y position of the slice
819
     * @param type 1->top field, 2->bottom field, 3->frame
820
     * @param offset offset into the AVFrame.data from which the slice should be read
821
     */
822
    void (*draw_horiz_band)(struct AVCodecContext *s,
823
                            const AVFrame *src, int offset[4],
824
                            int y, int type, int height);
825

    
826
    /* audio only */
827
    int sample_rate; ///< samples per sec
828
    int channels;
829

    
830
    /**
831
     * audio sample format.
832
     * - encoding: set by user.
833
     * - decoding: set by lavc.
834
     */
835
    enum SampleFormat sample_fmt;  ///< sample format, currenly unused
836

    
837
    /* the following data should not be initialized */
838
    /**
839
     * samples per packet. initialized when calling 'init'
840
     */
841
    int frame_size;
842
    int frame_number;   ///< audio or video frame number
843
    int real_pict_num;  ///< returns the real picture number of previous encoded frame
844

    
845
    /**
846
     * number of frames the decoded output will be delayed relative to
847
     * the encoded input.
848
     * - encoding: set by lavc.
849
     * - decoding: unused
850
     */
851
    int delay;
852

    
853
    /* - encoding parameters */
854
    float qcompress;  ///< amount of qscale change between easy & hard scenes (0.0-1.0)
855
    float qblur;      ///< amount of qscale smoothing over time (0.0-1.0)
856

    
857
    /**
858
     * minimum quantizer.
859
     * - encoding: set by user.
860
     * - decoding: unused
861
     */
862
    int qmin;
863

    
864
    /**
865
     * maximum quantizer.
866
     * - encoding: set by user.
867
     * - decoding: unused
868
     */
869
    int qmax;
870

    
871
    /**
872
     * maximum quantizer difference etween frames.
873
     * - encoding: set by user.
874
     * - decoding: unused
875
     */
876
    int max_qdiff;
877

    
878
    /**
879
     * maximum number of b frames between non b frames.
880
     * note: the output will be delayed by max_b_frames+1 relative to the input
881
     * - encoding: set by user.
882
     * - decoding: unused
883
     */
884
    int max_b_frames;
885

    
886
    /**
887
     * qscale factor between ip and b frames.
888
     * - encoding: set by user.
889
     * - decoding: unused
890
     */
891
    float b_quant_factor;
892

    
893
    /** obsolete FIXME remove */
894
    int rc_strategy;
895
#define FF_RC_STRATEGY_XVID 1
896

    
897
    int b_frame_strategy;
898

    
899
    /**
900
     * hurry up amount.
901
     * deprecated in favor of skip_idct and skip_frame
902
     * - encoding: unused
903
     * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
904
     */
905
    int hurry_up;
906

    
907
    struct AVCodec *codec;
908

    
909
    void *priv_data;
910

    
911
    /* unused, FIXME remove*/
912
    int rtp_mode;
913

    
914
    int rtp_payload_size;   /* The size of the RTP payload: the coder will  */
915
                            /* do it's best to deliver a chunk with size    */
916
                            /* below rtp_payload_size, the chunk will start */
917
                            /* with a start code on some codecs like H.263  */
918
                            /* This doesn't take account of any particular  */
919
                            /* headers inside the transmited RTP payload    */
920

    
921

    
922
    /* The RTP callback: This function is called   */
923
    /* every time the encoder has a packet to send */
924
    /* Depends on the encoder if the data starts   */
925
    /* with a Start Code (it should) H.263 does.   */
926
    /* mb_nb contains the number of macroblocks    */
927
    /* encoded in the RTP payload                  */
928
    void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb);
929

    
930
    /* statistics, used for 2-pass encoding */
931
    int mv_bits;
932
    int header_bits;
933
    int i_tex_bits;
934
    int p_tex_bits;
935
    int i_count;
936
    int p_count;
937
    int skip_count;
938
    int misc_bits;
939

    
940
    /**
941
     * number of bits used for the previously encoded frame.
942
     * - encoding: set by lavc
943
     * - decoding: unused
944
     */
945
    int frame_bits;
946

    
947
    /**
948
     * private data of the user, can be used to carry app specific stuff.
949
     * - encoding: set by user
950
     * - decoding: set by user
951
     */
952
    void *opaque;
953

    
954
    char codec_name[32];
955
    enum CodecType codec_type; /* see CODEC_TYPE_xxx */
956
    enum CodecID codec_id; /* see CODEC_ID_xxx */
957

    
958
    /**
959
     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
960
     * this is used to workaround some encoder bugs
961
     * - encoding: set by user, if not then the default based on codec_id will be used
962
     * - decoding: set by user, will be converted to upper case by lavc during init
963
     */
964
    unsigned int codec_tag;
965

    
966
    /**
967
     * workaround bugs in encoders which sometimes cannot be detected automatically.
968
     * - encoding: set by user
969
     * - decoding: set by user
970
     */
971
    int workaround_bugs;
972
#define FF_BUG_AUTODETECT       1  ///< autodetection
973
#define FF_BUG_OLD_MSMPEG4      2
974
#define FF_BUG_XVID_ILACE       4
975
#define FF_BUG_UMP4             8
976
#define FF_BUG_NO_PADDING       16
977
#define FF_BUG_AMV              32
978
#define FF_BUG_AC_VLC           0  ///< will be removed, libavcodec can now handle these non compliant files by default
979
#define FF_BUG_QPEL_CHROMA      64
980
#define FF_BUG_STD_QPEL         128
981
#define FF_BUG_QPEL_CHROMA2     256
982
#define FF_BUG_DIRECT_BLOCKSIZE 512
983
#define FF_BUG_EDGE             1024
984
#define FF_BUG_HPEL_CHROMA      2048
985
#define FF_BUG_DC_CLIP          4096
986
#define FF_BUG_MS               8192 ///< workaround various bugs in microsofts broken decoders
987
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
988

    
989
    /**
990
     * luma single coeff elimination threshold.
991
     * - encoding: set by user
992
     * - decoding: unused
993
     */
994
    int luma_elim_threshold;
995

    
996
    /**
997
     * chroma single coeff elimination threshold.
998
     * - encoding: set by user
999
     * - decoding: unused
1000
     */
1001
    int chroma_elim_threshold;
1002

    
1003
    /**
1004
     * strictly follow the std (MPEG4, ...).
1005
     * - encoding: set by user
1006
     * - decoding: unused
1007
     */
1008
    int strict_std_compliance;
1009
#define FF_COMPLIANCE_VERY_STRICT   2 ///< strictly conform to a older more strict version of the spec or reference software
1010
#define FF_COMPLIANCE_STRICT        1 ///< strictly conform to all the things in the spec no matter what consequences
1011
#define FF_COMPLIANCE_NORMAL        0
1012
#define FF_COMPLIANCE_INOFFICIAL   -1 ///< allow inofficial extensions
1013
#define FF_COMPLIANCE_EXPERIMENTAL -2 ///< allow non standarized experimental things
1014

    
1015
    /**
1016
     * qscale offset between ip and b frames.
1017
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1018
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
1019
     * - encoding: set by user.
1020
     * - decoding: unused
1021
     */
1022
    float b_quant_offset;
1023

    
1024
    /**
1025
     * error resilience higher values will detect more errors but may missdetect
1026
     * some more or less valid parts as errors.
1027
     * - encoding: unused
1028
     * - decoding: set by user
1029
     */
1030
    int error_resilience;
1031
#define FF_ER_CAREFUL         1
1032
#define FF_ER_COMPLIANT       2
1033
#define FF_ER_AGGRESSIVE      3
1034
#define FF_ER_VERY_AGGRESSIVE 4
1035

    
1036
    /**
1037
     * called at the beginning of each frame to get a buffer for it.
1038
     * if pic.reference is set then the frame will be read later by lavc
1039
     * avcodec_align_dimensions() should be used to find the required width and
1040
     * height, as they normally need to be rounded up to the next multiple of 16
1041
     * - encoding: unused
1042
     * - decoding: set by lavc, user can override
1043
     */
1044
    int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
1045

    
1046
    /**
1047
     * called to release buffers which where allocated with get_buffer.
1048
     * a released buffer can be reused in get_buffer()
1049
     * pic.data[*] must be set to NULL
1050
     * - encoding: unused
1051
     * - decoding: set by lavc, user can override
1052
     */
1053
    void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
1054

    
1055
    /**
1056
     * if 1 the stream has a 1 frame delay during decoding.
1057
     * - encoding: set by lavc
1058
     * - decoding: set by lavc
1059
     */
1060
    int has_b_frames;
1061

    
1062
    /**
1063
     * number of bytes per packet if constant and known or 0
1064
     * used by some WAV based audio codecs
1065
     */
1066
    int block_align;
1067

    
1068
    int parse_only; /* - decoding only: if true, only parsing is done
1069
                       (function avcodec_parse_frame()). The frame
1070
                       data is returned. Only MPEG codecs support this now. */
1071

    
1072
    /**
1073
     * 0-> h263 quant 1-> mpeg quant.
1074
     * - encoding: set by user.
1075
     * - decoding: unused
1076
     */
1077
    int mpeg_quant;
1078

    
1079
    /**
1080
     * pass1 encoding statistics output buffer.
1081
     * - encoding: set by lavc
1082
     * - decoding: unused
1083
     */
1084
    char *stats_out;
1085

    
1086
    /**
1087
     * pass2 encoding statistics input buffer.
1088
     * concatenated stuff from stats_out of pass1 should be placed here
1089
     * - encoding: allocated/set/freed by user
1090
     * - decoding: unused
1091
     */
1092
    char *stats_in;
1093

    
1094
    /**
1095
     * ratecontrol qmin qmax limiting method.
1096
     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
1097
     * - encoding: set by user.
1098
     * - decoding: unused
1099
     */
1100
    float rc_qsquish;
1101

    
1102
    float rc_qmod_amp;
1103
    int rc_qmod_freq;
1104

    
1105
    /**
1106
     * ratecontrol override, see RcOverride.
1107
     * - encoding: allocated/set/freed by user.
1108
     * - decoding: unused
1109
     */
1110
    RcOverride *rc_override;
1111
    int rc_override_count;
1112

    
1113
    /**
1114
     * rate control equation.
1115
     * - encoding: set by user
1116
     * - decoding: unused
1117
     */
1118
    char *rc_eq;
1119

    
1120
    /**
1121
     * maximum bitrate.
1122
     * - encoding: set by user.
1123
     * - decoding: unused
1124
     */
1125
    int rc_max_rate;
1126

    
1127
    /**
1128
     * minimum bitrate.
1129
     * - encoding: set by user.
1130
     * - decoding: unused
1131
     */
1132
    int rc_min_rate;
1133

    
1134
    /**
1135
     * decoder bitstream buffer size.
1136
     * - encoding: set by user.
1137
     * - decoding: unused
1138
     */
1139
    int rc_buffer_size;
1140
    float rc_buffer_aggressivity;
1141

    
1142
    /**
1143
     * qscale factor between p and i frames.
1144
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1145
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
1146
     * - encoding: set by user.
1147
     * - decoding: unused
1148
     */
1149
    float i_quant_factor;
1150

    
1151
    /**
1152
     * qscale offset between p and i frames.
1153
     * - encoding: set by user.
1154
     * - decoding: unused
1155
     */
1156
    float i_quant_offset;
1157

    
1158
    /**
1159
     * initial complexity for pass1 ratecontrol.
1160
     * - encoding: set by user.
1161
     * - decoding: unused
1162
     */
1163
    float rc_initial_cplx;
1164

    
1165
    /**
1166
     * dct algorithm, see FF_DCT_* below.
1167
     * - encoding: set by user
1168
     * - decoding: unused
1169
     */
1170
    int dct_algo;
1171
#define FF_DCT_AUTO    0
1172
#define FF_DCT_FASTINT 1
1173
#define FF_DCT_INT     2
1174
#define FF_DCT_MMX     3
1175
#define FF_DCT_MLIB    4
1176
#define FF_DCT_ALTIVEC 5
1177
#define FF_DCT_FAAN    6
1178

    
1179
    /**
1180
     * luminance masking (0-> disabled).
1181
     * - encoding: set by user
1182
     * - decoding: unused
1183
     */
1184
    float lumi_masking;
1185

    
1186
    /**
1187
     * temporary complexity masking (0-> disabled).
1188
     * - encoding: set by user
1189
     * - decoding: unused
1190
     */
1191
    float temporal_cplx_masking;
1192

    
1193
    /**
1194
     * spatial complexity masking (0-> disabled).
1195
     * - encoding: set by user
1196
     * - decoding: unused
1197
     */
1198
    float spatial_cplx_masking;
1199

    
1200
    /**
1201
     * p block masking (0-> disabled).
1202
     * - encoding: set by user
1203
     * - decoding: unused
1204
     */
1205
    float p_masking;
1206

    
1207
    /**
1208
     * darkness masking (0-> disabled).
1209
     * - encoding: set by user
1210
     * - decoding: unused
1211
     */
1212
    float dark_masking;
1213

    
1214

    
1215
    /* for binary compatibility */
1216
    int unused;
1217

    
1218
    /**
1219
     * idct algorithm, see FF_IDCT_* below.
1220
     * - encoding: set by user
1221
     * - decoding: set by user
1222
     */
1223
    int idct_algo;
1224
#define FF_IDCT_AUTO         0
1225
#define FF_IDCT_INT          1
1226
#define FF_IDCT_SIMPLE       2
1227
#define FF_IDCT_SIMPLEMMX    3
1228
#define FF_IDCT_LIBMPEG2MMX  4
1229
#define FF_IDCT_PS2          5
1230
#define FF_IDCT_MLIB         6
1231
#define FF_IDCT_ARM          7
1232
#define FF_IDCT_ALTIVEC      8
1233
#define FF_IDCT_SH4          9
1234
#define FF_IDCT_SIMPLEARM    10
1235
#define FF_IDCT_H264         11
1236
#define FF_IDCT_VP3          12
1237
#define FF_IDCT_IPP          13
1238
#define FF_IDCT_XVIDMMX      14
1239

    
1240
    /**
1241
     * slice count.
1242
     * - encoding: set by lavc
1243
     * - decoding: set by user (or 0)
1244
     */
1245
    int slice_count;
1246
    /**
1247
     * slice offsets in the frame in bytes.
1248
     * - encoding: set/allocated by lavc
1249
     * - decoding: set/allocated by user (or NULL)
1250
     */
1251
    int *slice_offset;
1252

    
1253
    /**
1254
     * error concealment flags.
1255
     * - encoding: unused
1256
     * - decoding: set by user
1257
     */
1258
    int error_concealment;
1259
#define FF_EC_GUESS_MVS   1
1260
#define FF_EC_DEBLOCK     2
1261

    
1262
    /**
1263
     * dsp_mask could be add used to disable unwanted CPU features
1264
     * CPU features (i.e. MMX, SSE. ...)
1265
     *
1266
     * with FORCE flag you may instead enable given CPU features
1267
     * (Dangerous: usable in case of misdetection, improper usage however will
1268
     * result into program crash)
1269
     */
1270
    unsigned dsp_mask;
1271
#define FF_MM_FORCE    0x80000000 /* force usage of selected flags (OR) */
1272
    /* lower 16 bits - CPU features */
1273
#ifdef HAVE_MMX
1274
#define FF_MM_MMX      0x0001 /* standard MMX */
1275
#define FF_MM_3DNOW    0x0004 /* AMD 3DNOW */
1276
#define FF_MM_MMXEXT   0x0002 /* SSE integer functions or AMD MMX ext */
1277
#define FF_MM_SSE      0x0008 /* SSE functions */
1278
#define FF_MM_SSE2     0x0010 /* PIV SSE2 functions */
1279
#define FF_MM_3DNOWEXT 0x0020 /* AMD 3DNowExt */
1280
#endif /* HAVE_MMX */
1281
#ifdef HAVE_IWMMXT
1282
#define FF_MM_IWMMXT   0x0100 /* XScale IWMMXT */
1283
#endif /* HAVE_IWMMXT */
1284

    
1285
    /**
1286
     * bits per sample/pixel from the demuxer (needed for huffyuv).
1287
     * - encoding: set by lavc
1288
     * - decoding: set by user
1289
     */
1290
     int bits_per_sample;
1291

    
1292
    /**
1293
     * prediction method (needed for huffyuv).
1294
     * - encoding: set by user
1295
     * - decoding: unused
1296
     */
1297
     int prediction_method;
1298
#define FF_PRED_LEFT   0
1299
#define FF_PRED_PLANE  1
1300
#define FF_PRED_MEDIAN 2
1301

    
1302
    /**
1303
     * sample aspect ratio (0 if unknown).
1304
     * numerator and denominator must be relative prime and smaller then 256 for some video standards
1305
     * - encoding: set by user.
1306
     * - decoding: set by lavc.
1307
     */
1308
    AVRational sample_aspect_ratio;
1309

    
1310
    /**
1311
     * the picture in the bitstream.
1312
     * - encoding: set by lavc
1313
     * - decoding: set by lavc
1314
     */
1315
    AVFrame *coded_frame;
1316

    
1317
    /**
1318
     * debug.
1319
     * - encoding: set by user.
1320
     * - decoding: set by user.
1321
     */
1322
    int debug;
1323
#define FF_DEBUG_PICT_INFO 1
1324
#define FF_DEBUG_RC        2
1325
#define FF_DEBUG_BITSTREAM 4
1326
#define FF_DEBUG_MB_TYPE   8
1327
#define FF_DEBUG_QP        16
1328
#define FF_DEBUG_MV        32
1329
#define FF_DEBUG_DCT_COEFF 0x00000040
1330
#define FF_DEBUG_SKIP      0x00000080
1331
#define FF_DEBUG_STARTCODE 0x00000100
1332
#define FF_DEBUG_PTS       0x00000200
1333
#define FF_DEBUG_ER        0x00000400
1334
#define FF_DEBUG_MMCO      0x00000800
1335
#define FF_DEBUG_BUGS      0x00001000
1336
#define FF_DEBUG_VIS_QP    0x00002000
1337
#define FF_DEBUG_VIS_MB_TYPE 0x00004000
1338

    
1339
    /**
1340
     * debug.
1341
     * - encoding: set by user.
1342
     * - decoding: set by user.
1343
     */
1344
    int debug_mv;
1345
#define FF_DEBUG_VIS_MV_P_FOR  0x00000001 //visualize forward predicted MVs of P frames
1346
#define FF_DEBUG_VIS_MV_B_FOR  0x00000002 //visualize forward predicted MVs of B frames
1347
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1348

    
1349
    /**
1350
     * error.
1351
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1352
     * - decoding: unused
1353
     */
1354
    uint64_t error[4];
1355

    
1356
    /**
1357
     * minimum MB quantizer.
1358
     * - encoding: unused
1359
     * - decoding: unused
1360
     */
1361
    int mb_qmin;
1362

    
1363
    /**
1364
     * maximum MB quantizer.
1365
     * - encoding: unused
1366
     * - decoding: unused
1367
     */
1368
    int mb_qmax;
1369

    
1370
    /**
1371
     * motion estimation compare function.
1372
     * - encoding: set by user.
1373
     * - decoding: unused
1374
     */
1375
    int me_cmp;
1376
    /**
1377
     * subpixel motion estimation compare function.
1378
     * - encoding: set by user.
1379
     * - decoding: unused
1380
     */
1381
    int me_sub_cmp;
1382
    /**
1383
     * macroblock compare function (not supported yet).
1384
     * - encoding: set by user.
1385
     * - decoding: unused
1386
     */
1387
    int mb_cmp;
1388
    /**
1389
     * interlaced dct compare function
1390
     * - encoding: set by user.
1391
     * - decoding: unused
1392
     */
1393
    int ildct_cmp;
1394
#define FF_CMP_SAD  0
1395
#define FF_CMP_SSE  1
1396
#define FF_CMP_SATD 2
1397
#define FF_CMP_DCT  3
1398
#define FF_CMP_PSNR 4
1399
#define FF_CMP_BIT  5
1400
#define FF_CMP_RD   6
1401
#define FF_CMP_ZERO 7
1402
#define FF_CMP_VSAD 8
1403
#define FF_CMP_VSSE 9
1404
#define FF_CMP_NSSE 10
1405
#define FF_CMP_W53  11
1406
#define FF_CMP_W97  12
1407
#define FF_CMP_DCTMAX 13
1408
#define FF_CMP_DCT264 14
1409
#define FF_CMP_CHROMA 256
1410

    
1411
    /**
1412
     * ME diamond size & shape.
1413
     * - encoding: set by user.
1414
     * - decoding: unused
1415
     */
1416
    int dia_size;
1417

    
1418
    /**
1419
     * amount of previous MV predictors (2a+1 x 2a+1 square).
1420
     * - encoding: set by user.
1421
     * - decoding: unused
1422
     */
1423
    int last_predictor_count;
1424

    
1425
    /**
1426
     * pre pass for motion estimation.
1427
     * - encoding: set by user.
1428
     * - decoding: unused
1429
     */
1430
    int pre_me;
1431

    
1432
    /**
1433
     * motion estimation pre pass compare function.
1434
     * - encoding: set by user.
1435
     * - decoding: unused
1436
     */
1437
    int me_pre_cmp;
1438

    
1439
    /**
1440
     * ME pre pass diamond size & shape.
1441
     * - encoding: set by user.
1442
     * - decoding: unused
1443
     */
1444
    int pre_dia_size;
1445

    
1446
    /**
1447
     * subpel ME quality.
1448
     * - encoding: set by user.
1449
     * - decoding: unused
1450
     */
1451
    int me_subpel_quality;
1452

    
1453
    /**
1454
     * callback to negotiate the pixelFormat.
1455
     * @param fmt is the list of formats which are supported by the codec,
1456
     * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1457
     * the first is allways the native one
1458
     * @return the choosen format
1459
     * - encoding: unused
1460
     * - decoding: set by user, if not set then the native format will always be choosen
1461
     */
1462
    enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
1463

    
1464
    /**
1465
     * DTG active format information (additionnal aspect ratio
1466
     * information only used in DVB MPEG2 transport streams). 0 if
1467
     * not set.
1468
     *
1469
     * - encoding: unused.
1470
     * - decoding: set by decoder
1471
     */
1472
    int dtg_active_format;
1473
#define FF_DTG_AFD_SAME         8
1474
#define FF_DTG_AFD_4_3          9
1475
#define FF_DTG_AFD_16_9         10
1476
#define FF_DTG_AFD_14_9         11
1477
#define FF_DTG_AFD_4_3_SP_14_9  13
1478
#define FF_DTG_AFD_16_9_SP_14_9 14
1479
#define FF_DTG_AFD_SP_4_3       15
1480

    
1481
    /**
1482
     * Maximum motion estimation search range in subpel units.
1483
     * if 0 then no limit
1484
     *
1485
     * - encoding: set by user.
1486
     * - decoding: unused.
1487
     */
1488
    int me_range;
1489

    
1490
    /**
1491
     * intra quantizer bias.
1492
     * - encoding: set by user.
1493
     * - decoding: unused
1494
     */
1495
    int intra_quant_bias;
1496
#define FF_DEFAULT_QUANT_BIAS 999999
1497

    
1498
    /**
1499
     * inter quantizer bias.
1500
     * - encoding: set by user.
1501
     * - decoding: unused
1502
     */
1503
    int inter_quant_bias;
1504

    
1505
    /**
1506
     * color table ID.
1507
     * - encoding: unused.
1508
     * - decoding: which clrtable should be used for 8bit RGB images
1509
     *             table have to be stored somewhere FIXME
1510
     */
1511
    int color_table_id;
1512

    
1513
    /**
1514
     * internal_buffer count.
1515
     * Don't touch, used by lavc default_get_buffer()
1516
     */
1517
    int internal_buffer_count;
1518

    
1519
    /**
1520
     * internal_buffers.
1521
     * Don't touch, used by lavc default_get_buffer()
1522
     */
1523
    void *internal_buffer;
1524

    
1525
#define FF_LAMBDA_SHIFT 7
1526
#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1527
#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1528
#define FF_LAMBDA_MAX (256*128-1)
1529

    
1530
#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
1531
    /**
1532
     * global quality for codecs which cannot change it per frame.
1533
     * this should be proportional to MPEG1/2/4 qscale.
1534
     * - encoding: set by user.
1535
     * - decoding: unused
1536
     */
1537
    int global_quality;
1538

    
1539
#define FF_CODER_TYPE_VLC   0
1540
#define FF_CODER_TYPE_AC    1
1541
    /**
1542
     * coder type
1543
     * - encoding: set by user.
1544
     * - decoding: unused
1545
     */
1546
    int coder_type;
1547

    
1548
    /**
1549
     * context model
1550
     * - encoding: set by user.
1551
     * - decoding: unused
1552
     */
1553
    int context_model;
1554
#if 0
1555
    /**
1556
     *
1557
     * - encoding: unused
1558
     * - decoding: set by user.
1559
     */
1560
    uint8_t * (*realloc)(struct AVCodecContext *s, uint8_t *buf, int buf_size);
1561
#endif
1562

    
1563
    /**
1564
     * slice flags
1565
     * - encoding: unused
1566
     * - decoding: set by user.
1567
     */
1568
    int slice_flags;
1569
#define SLICE_FLAG_CODED_ORDER    0x0001 ///< draw_horiz_band() is called in coded order instead of display
1570
#define SLICE_FLAG_ALLOW_FIELD    0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1571
#define SLICE_FLAG_ALLOW_PLANE    0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1572

    
1573
    /**
1574
     * XVideo Motion Acceleration
1575
     * - encoding: forbidden
1576
     * - decoding: set by decoder
1577
     */
1578
    int xvmc_acceleration;
1579

    
1580
    /**
1581
     * macroblock decision mode
1582
     * - encoding: set by user.
1583
     * - decoding: unused
1584
     */
1585
    int mb_decision;
1586
#define FF_MB_DECISION_SIMPLE 0        ///< uses mb_cmp
1587
#define FF_MB_DECISION_BITS   1        ///< chooses the one which needs the fewest bits
1588
#define FF_MB_DECISION_RD     2        ///< rate distoration
1589

    
1590
    /**
1591
     * custom intra quantization matrix
1592
     * - encoding: set by user, can be NULL
1593
     * - decoding: set by lavc
1594
     */
1595
    uint16_t *intra_matrix;
1596

    
1597
    /**
1598
     * custom inter quantization matrix
1599
     * - encoding: set by user, can be NULL
1600
     * - decoding: set by lavc
1601
     */
1602
    uint16_t *inter_matrix;
1603

    
1604
    /**
1605
     * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1606
     * this is used to workaround some encoder bugs
1607
     * - encoding: unused
1608
     * - decoding: set by user, will be converted to upper case by lavc during init
1609
     */
1610
    unsigned int stream_codec_tag;
1611

    
1612
    /**
1613
     * scene change detection threshold.
1614
     * 0 is default, larger means fewer detected scene changes
1615
     * - encoding: set by user.
1616
     * - decoding: unused
1617
     */
1618
    int scenechange_threshold;
1619

    
1620
    /**
1621
     * minimum lagrange multipler
1622
     * - encoding: set by user.
1623
     * - decoding: unused
1624
     */
1625
    int lmin;
1626

    
1627
    /**
1628
     * maximum lagrange multipler
1629
     * - encoding: set by user.
1630
     * - decoding: unused
1631
     */
1632
    int lmax;
1633

    
1634
    /**
1635
     * Palette control structure
1636
     * - encoding: ??? (no palette-enabled encoder yet)
1637
     * - decoding: set by user.
1638
     */
1639
    struct AVPaletteControl *palctrl;
1640

    
1641
    /**
1642
     * noise reduction strength
1643
     * - encoding: set by user.
1644
     * - decoding: unused
1645
     */
1646
    int noise_reduction;
1647

    
1648
    /**
1649
     * called at the beginning of a frame to get cr buffer for it.
1650
     * buffer type (size, hints) must be the same. lavc won't check it.
1651
     * lavc will pass previous buffer in pic, function should return
1652
     * same buffer or new buffer with old frame "painted" into it.
1653
     * if pic.data[0] == NULL must behave like get_buffer().
1654
     * - encoding: unused
1655
     * - decoding: set by lavc, user can override
1656
     */
1657
    int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
1658

    
1659
    /**
1660
     * number of bits which should be loaded into the rc buffer before decoding starts
1661
     * - encoding: set by user.
1662
     * - decoding: unused
1663
     */
1664
    int rc_initial_buffer_occupancy;
1665

    
1666
    /**
1667
     *
1668
     * - encoding: set by user.
1669
     * - decoding: unused
1670
     */
1671
    int inter_threshold;
1672

    
1673
    /**
1674
     * CODEC_FLAG2_*.
1675
     * - encoding: set by user.
1676
     * - decoding: set by user.
1677
     */
1678
    int flags2;
1679

    
1680
    /**
1681
     * simulates errors in the bitstream to test error concealment.
1682
     * - encoding: set by user.
1683
     * - decoding: unused.
1684
     */
1685
    int error_rate;
1686

    
1687
    /**
1688
     * MP3 antialias algorithm, see FF_AA_* below.
1689
     * - encoding: unused
1690
     * - decoding: set by user
1691
     */
1692
    int antialias_algo;
1693
#define FF_AA_AUTO    0
1694
#define FF_AA_FASTINT 1 //not implemented yet
1695
#define FF_AA_INT     2
1696
#define FF_AA_FLOAT   3
1697
    /**
1698
     * Quantizer noise shaping.
1699
     * - encoding: set by user
1700
     * - decoding: unused
1701
     */
1702
    int quantizer_noise_shaping;
1703

    
1704
    /**
1705
     * Thread count.
1706
     * is used to decide how many independant tasks should be passed to execute()
1707
     * - encoding: set by user
1708
     * - decoding: set by user
1709
     */
1710
    int thread_count;
1711

    
1712
    /**
1713
     * the codec may call this to execute several independant things. it will return only after
1714
     * finishing all tasks, the user may replace this with some multithreaded implementation, the
1715
     * default implementation will execute the parts serially
1716
     * @param count the number of things to execute
1717
     * - encoding: set by lavc, user can override
1718
     * - decoding: set by lavc, user can override
1719
     */
1720
    int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
1721

    
1722
    /**
1723
     * Thread opaque.
1724
     * can be used by execute() to store some per AVCodecContext stuff.
1725
     * - encoding: set by execute()
1726
     * - decoding: set by execute()
1727
     */
1728
    void *thread_opaque;
1729

    
1730
    /**
1731
     * Motion estimation threshold. under which no motion estimation is
1732
     * performed, but instead the user specified motion vectors are used
1733
     *
1734
     * - encoding: set by user
1735
     * - decoding: unused
1736
     */
1737
     int me_threshold;
1738

    
1739
    /**
1740
     * Macroblock threshold. under which the user specified macroblock types will be used
1741
     * - encoding: set by user
1742
     * - decoding: unused
1743
     */
1744
     int mb_threshold;
1745

    
1746
    /**
1747
     * precision of the intra dc coefficient - 8.
1748
     * - encoding: set by user
1749
     * - decoding: unused
1750
     */
1751
     int intra_dc_precision;
1752

    
1753
    /**
1754
     * noise vs. sse weight for the nsse comparsion function.
1755
     * - encoding: set by user
1756
     * - decoding: unused
1757
     */
1758
     int nsse_weight;
1759

    
1760
    /**
1761
     * number of macroblock rows at the top which are skipped.
1762
     * - encoding: unused
1763
     * - decoding: set by user
1764
     */
1765
     int skip_top;
1766

    
1767
    /**
1768
     * number of macroblock rows at the bottom which are skipped.
1769
     * - encoding: unused
1770
     * - decoding: set by user
1771
     */
1772
     int skip_bottom;
1773

    
1774
    /**
1775
     * profile
1776
     * - encoding: set by user
1777
     * - decoding: set by lavc
1778
     */
1779
     int profile;
1780
#define FF_PROFILE_UNKNOWN -99
1781

    
1782
    /**
1783
     * level
1784
     * - encoding: set by user
1785
     * - decoding: set by lavc
1786
     */
1787
     int level;
1788
#define FF_LEVEL_UNKNOWN -99
1789

    
1790
    /**
1791
     * low resolution decoding. 1-> 1/2 size, 2->1/4 size
1792
     * - encoding: unused
1793
     * - decoding: set by user
1794
     */
1795
     int lowres;
1796

    
1797
    /**
1798
     * bitsream width / height. may be different from width/height if lowres
1799
     * or other things are used
1800
     * - encoding: unused
1801
     * - decoding: set by user before init if known, codec should override / dynamically change if needed
1802
     */
1803
    int coded_width, coded_height;
1804

    
1805
    /**
1806
     * frame skip threshold
1807
     * - encoding: set by user
1808
     * - decoding: unused
1809
     */
1810
    int frame_skip_threshold;
1811

    
1812
    /**
1813
     * frame skip factor
1814
     * - encoding: set by user
1815
     * - decoding: unused
1816
     */
1817
    int frame_skip_factor;
1818

    
1819
    /**
1820
     * frame skip exponent
1821
     * - encoding: set by user
1822
     * - decoding: unused
1823
     */
1824
    int frame_skip_exp;
1825

    
1826
    /**
1827
     * frame skip comparission function
1828
     * - encoding: set by user.
1829
     * - decoding: unused
1830
     */
1831
    int frame_skip_cmp;
1832

    
1833
    /**
1834
     * border processing masking. raises the quantizer for mbs on the borders
1835
     * of the picture.
1836
     * - encoding: set by user
1837
     * - decoding: unused
1838
     */
1839
    float border_masking;
1840

    
1841
    /**
1842
     * minimum MB lagrange multipler.
1843
     * - encoding: set by user.
1844
     * - decoding: unused
1845
     */
1846
    int mb_lmin;
1847

    
1848
    /**
1849
     * maximum MB lagrange multipler.
1850
     * - encoding: set by user.
1851
     * - decoding: unused
1852
     */
1853
    int mb_lmax;
1854

    
1855
    /**
1856
     *
1857
     * - encoding: set by user.
1858
     * - decoding: unused
1859
     */
1860
    int me_penalty_compensation;
1861

    
1862
    /**
1863
     *
1864
     * - encoding: unused
1865
     * - decoding: set by user.
1866
     */
1867
    enum AVDiscard skip_loop_filter;
1868

    
1869
    /**
1870
     *
1871
     * - encoding: unused
1872
     * - decoding: set by user.
1873
     */
1874
    enum AVDiscard skip_idct;
1875

    
1876
    /**
1877
     *
1878
     * - encoding: unused
1879
     * - decoding: set by user.
1880
     */
1881
    enum AVDiscard skip_frame;
1882

    
1883
    /**
1884
     *
1885
     * - encoding: set by user.
1886
     * - decoding: unused
1887
     */
1888
    int bidir_refine;
1889

    
1890
    /**
1891
     *
1892
     * - encoding: set by user.
1893
     * - decoding: unused
1894
     */
1895
    int brd_scale;
1896

    
1897
    /**
1898
     * constant rate factor - quality-based VBR - values ~correspond to qps
1899
     * - encoding: set by user.
1900
     * - decoding: unused
1901
     */
1902
    int crf;
1903

    
1904
    /**
1905
     * constant quantization parameter rate control method
1906
     * - encoding: set by user.
1907
     * - decoding: unused
1908
     */
1909
    int cqp;
1910

    
1911
    /**
1912
     * minimum gop size
1913
     * - encoding: set by user.
1914
     * - decoding: unused
1915
     */
1916
    int keyint_min;
1917

    
1918
    /**
1919
     * number of reference frames
1920
     * - encoding: set by user.
1921
     * - decoding: unused
1922
     */
1923
    int refs;
1924

    
1925
    /**
1926
     * chroma qp offset from luma
1927
     * - encoding: set by user.
1928
     * - decoding: unused
1929
     */
1930
    int chromaoffset;
1931

    
1932
    /**
1933
     * influences how often b-frames are used
1934
     * - encoding: set by user.
1935
     * - decoding: unused
1936
     */
1937
    int bframebias;
1938

    
1939
    /**
1940
     * trellis RD quantization
1941
     * - encoding: set by user.
1942
     * - decoding: unused
1943
     */
1944
    int trellis;
1945

    
1946
    /**
1947
     * reduce fluctuations in qp (before curve compression)
1948
     * - encoding: set by user.
1949
     * - decoding: unused
1950
     */
1951
    float complexityblur;
1952

    
1953
    /**
1954
     * in-loop deblocking filter alphac0 parameter
1955
     * alpha is in the range -6...6
1956
     * - encoding: set by user.
1957
     * - decoding: unused
1958
     */
1959
    int deblockalpha;
1960

    
1961
    /**
1962
     * in-loop deblocking filter beta parameter
1963
     * beta is in the range -6...6
1964
     * - encoding: set by user.
1965
     * - decoding: unused
1966
     */
1967
    int deblockbeta;
1968

    
1969
    /**
1970
     * macroblock subpartition sizes to consider - p8x8, p4x4, b8x8, i8x8, i4x4
1971
     * - encoding: set by user.
1972
     * - decoding: unused
1973
     */
1974
    int partitions;
1975
#define X264_PART_I4X4 0x001  /* Analyse i4x4 */
1976
#define X264_PART_I8X8 0x002  /* Analyse i8x8 (requires 8x8 transform) */
1977
#define X264_PART_P8X8 0x010  /* Analyse p16x8, p8x16 and p8x8 */
1978
#define X264_PART_P4X4 0x020  /* Analyse p8x4, p4x8, p4x4 */
1979
#define X264_PART_B8X8 0x100  /* Analyse b16x8, b8x16 and b8x8 */
1980

    
1981
    /**
1982
     * direct mv prediction mode - 0 (none), 1 (spatial), 2 (temporal)
1983
     * - encoding: set by user.
1984
     * - decoding: unused
1985
     */
1986
    int directpred;
1987

    
1988
    /**
1989
     * audio cutoff bandwidth (0 means "automatic") . Currently used only by FAAC
1990
     * - encoding: set by user.
1991
     * - decoding: unused
1992
     */
1993
    int cutoff;
1994

    
1995
    /**
1996
     * multiplied by qscale for each frame and added to scene_change_score
1997
     * - encoding: set by user.
1998
     * - decoding: unused
1999
     */
2000
    int scenechange_factor;
2001
} AVCodecContext;
2002

    
2003
/**
2004
 * AVCodec.
2005
 */
2006
typedef struct AVCodec {
2007
    const char *name;
2008
    enum CodecType type;
2009
    enum CodecID id;
2010
    int priv_data_size;
2011
    int (*init)(AVCodecContext *);
2012
    int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
2013
    int (*close)(AVCodecContext *);
2014
    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
2015
                  uint8_t *buf, int buf_size);
2016
    int capabilities;
2017
#if LIBAVCODEC_VERSION_INT < ((50<<16)+(0<<8)+0)
2018
    void *dummy; // FIXME remove next time we break binary compatibility
2019
#endif
2020
    struct AVCodec *next;
2021
    void (*flush)(AVCodecContext *);
2022
    const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
2023
    const enum PixelFormat *pix_fmts;       ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
2024
} AVCodec;
2025

    
2026
/**
2027
 * four components are given, that's all.
2028
 * the last component is alpha
2029
 */
2030
typedef struct AVPicture {
2031
    uint8_t *data[4];
2032
    int linesize[4];       ///< number of bytes per line
2033
} AVPicture;
2034

    
2035
/**
2036
 * AVPaletteControl
2037
 * This structure defines a method for communicating palette changes
2038
 * between and demuxer and a decoder.
2039
 */
2040
#define AVPALETTE_SIZE 1024
2041
#define AVPALETTE_COUNT 256
2042
typedef struct AVPaletteControl {
2043

    
2044
    /* demuxer sets this to 1 to indicate the palette has changed;
2045
     * decoder resets to 0 */
2046
    int palette_changed;
2047

    
2048
    /* 4-byte ARGB palette entries, stored in native byte order; note that
2049
     * the individual palette components should be on a 8-bit scale; if
2050
     * the palette data comes from a IBM VGA native format, the component
2051
     * data is probably 6 bits in size and needs to be scaled */
2052
    unsigned int palette[AVPALETTE_COUNT];
2053

    
2054
} AVPaletteControl;
2055

    
2056
typedef struct AVSubtitleRect {
2057
    uint16_t x;
2058
    uint16_t y;
2059
    uint16_t w;
2060
    uint16_t h;
2061
    uint16_t nb_colors;
2062
    int linesize;
2063
    uint32_t *rgba_palette;
2064
    uint8_t *bitmap;
2065
} AVSubtitleRect;
2066

    
2067
typedef struct AVSubtitle {
2068
    uint16_t format; /* 0 = graphics */
2069
    uint32_t start_display_time; /* relative to packet pts, in ms */
2070
    uint32_t end_display_time; /* relative to packet pts, in ms */
2071
    uint32_t num_rects;
2072
    AVSubtitleRect *rects;
2073
} AVSubtitle;
2074

    
2075
extern AVCodec ac3_encoder;
2076
extern AVCodec mp2_encoder;
2077
extern AVCodec mp3lame_encoder;
2078
extern AVCodec oggvorbis_encoder;
2079
extern AVCodec oggtheora_encoder;
2080
extern AVCodec faac_encoder;
2081
extern AVCodec xvid_encoder;
2082
extern AVCodec mpeg1video_encoder;
2083
extern AVCodec mpeg2video_encoder;
2084
extern AVCodec h261_encoder;
2085
extern AVCodec h263_encoder;
2086
extern AVCodec h263p_encoder;
2087
extern AVCodec flv_encoder;
2088
extern AVCodec rv10_encoder;
2089
extern AVCodec rv20_encoder;
2090
extern AVCodec dvvideo_encoder;
2091
extern AVCodec mjpeg_encoder;
2092
extern AVCodec ljpeg_encoder;
2093
extern AVCodec jpegls_encoder;
2094
extern AVCodec png_encoder;
2095
extern AVCodec ppm_encoder;
2096
extern AVCodec pgm_encoder;
2097
extern AVCodec pgmyuv_encoder;
2098
extern AVCodec pbm_encoder;
2099
extern AVCodec pam_encoder;
2100
extern AVCodec mpeg4_encoder;
2101
extern AVCodec msmpeg4v1_encoder;
2102
extern AVCodec msmpeg4v2_encoder;
2103
extern AVCodec msmpeg4v3_encoder;
2104
extern AVCodec wmv1_encoder;
2105
extern AVCodec wmv2_encoder;
2106
extern AVCodec huffyuv_encoder;
2107
extern AVCodec ffvhuff_encoder;
2108
extern AVCodec h264_encoder;
2109
extern AVCodec asv1_encoder;
2110
extern AVCodec asv2_encoder;
2111
extern AVCodec vcr1_encoder;
2112
extern AVCodec ffv1_encoder;
2113
extern AVCodec snow_encoder;
2114
extern AVCodec mdec_encoder;
2115
extern AVCodec zlib_encoder;
2116
extern AVCodec sonic_encoder;
2117
extern AVCodec sonic_ls_encoder;
2118
extern AVCodec svq1_encoder;
2119
extern AVCodec x264_encoder;
2120

    
2121
extern AVCodec h263_decoder;
2122
extern AVCodec h261_decoder;
2123
extern AVCodec mpeg4_decoder;
2124
extern AVCodec msmpeg4v1_decoder;
2125
extern AVCodec msmpeg4v2_decoder;
2126
extern AVCodec msmpeg4v3_decoder;
2127
extern AVCodec wmv1_decoder;
2128
extern AVCodec wmv2_decoder;
2129
extern AVCodec vc9_decoder;
2130
extern AVCodec wmv3_decoder;
2131
extern AVCodec mpeg1video_decoder;
2132
extern AVCodec mpeg2video_decoder;
2133
extern AVCodec mpegvideo_decoder;
2134
extern AVCodec mpeg_xvmc_decoder;
2135
extern AVCodec h263i_decoder;
2136
extern AVCodec flv_decoder;
2137
extern AVCodec rv10_decoder;
2138
extern AVCodec rv20_decoder;
2139
extern AVCodec rv30_decoder;
2140
extern AVCodec rv40_decoder;
2141
extern AVCodec svq1_decoder;
2142
extern AVCodec svq3_decoder;
2143
extern AVCodec dvvideo_decoder;
2144
extern AVCodec wmav1_decoder;
2145
extern AVCodec wmav2_decoder;
2146
extern AVCodec mjpeg_decoder;
2147
extern AVCodec mjpegb_decoder;
2148
extern AVCodec sp5x_decoder;
2149
extern AVCodec png_decoder;
2150
extern AVCodec mp2_decoder;
2151
extern AVCodec mp3_decoder;
2152
extern AVCodec mp3adu_decoder;
2153
extern AVCodec mp3on4_decoder;
2154
extern AVCodec qdm2_decoder;
2155
extern AVCodec cook_decoder;
2156
extern AVCodec truespeech_decoder;
2157
extern AVCodec mace3_decoder;
2158
extern AVCodec mace6_decoder;
2159
extern AVCodec huffyuv_decoder;
2160
extern AVCodec ffvhuff_decoder;
2161
extern AVCodec oggvorbis_decoder;
2162
extern AVCodec oggtheora_decoder;
2163
extern AVCodec cyuv_decoder;
2164
extern AVCodec h264_decoder;
2165
extern AVCodec indeo3_decoder;
2166
extern AVCodec vp3_decoder;
2167
extern AVCodec theora_decoder;
2168
extern AVCodec amr_nb_decoder;
2169
extern AVCodec amr_nb_encoder;
2170
extern AVCodec amr_wb_encoder;
2171
extern AVCodec amr_wb_decoder;
2172
extern AVCodec aac_decoder;
2173
extern AVCodec mpeg4aac_decoder;
2174
extern AVCodec asv1_decoder;
2175
extern AVCodec asv2_decoder;
2176
extern AVCodec vcr1_decoder;
2177
extern AVCodec cljr_decoder;
2178
extern AVCodec ffv1_decoder;
2179
extern AVCodec snow_decoder;
2180
extern AVCodec fourxm_decoder;
2181
extern AVCodec mdec_decoder;
2182
extern AVCodec roq_decoder;
2183
extern AVCodec interplay_video_decoder;
2184
extern AVCodec xan_wc3_decoder;
2185
extern AVCodec rpza_decoder;
2186
extern AVCodec cinepak_decoder;
2187
extern AVCodec msrle_decoder;
2188
extern AVCodec msvideo1_decoder;
2189
extern AVCodec vqa_decoder;
2190
extern AVCodec idcin_decoder;
2191
extern AVCodec eightbps_decoder;
2192
extern AVCodec smc_decoder;
2193
extern AVCodec flic_decoder;
2194
extern AVCodec vmdvideo_decoder;
2195
extern AVCodec vmdaudio_decoder;
2196
extern AVCodec truemotion1_decoder;
2197
extern AVCodec truemotion2_decoder;
2198
extern AVCodec mszh_decoder;
2199
extern AVCodec zlib_decoder;
2200
extern AVCodec ra_144_decoder;
2201
extern AVCodec ra_288_decoder;
2202
extern AVCodec roq_dpcm_decoder;
2203
extern AVCodec interplay_dpcm_decoder;
2204
extern AVCodec xan_dpcm_decoder;
2205
extern AVCodec sol_dpcm_decoder;
2206
extern AVCodec sonic_decoder;
2207
extern AVCodec qtrle_decoder;
2208
extern AVCodec flac_decoder;
2209
extern AVCodec tscc_decoder;
2210
extern AVCodec cscd_decoder;
2211
extern AVCodec ulti_decoder;
2212
extern AVCodec qdraw_decoder;
2213
extern AVCodec xl_decoder;
2214
extern AVCodec qpeg_decoder;
2215
extern AVCodec shorten_decoder;
2216
extern AVCodec loco_decoder;
2217
extern AVCodec wnv1_decoder;
2218
extern AVCodec aasc_decoder;
2219
extern AVCodec alac_decoder;
2220
extern AVCodec ws_snd1_decoder;
2221
extern AVCodec indeo2_decoder;
2222
extern AVCodec vorbis_decoder;
2223
extern AVCodec fraps_decoder;
2224
extern AVCodec libgsm_encoder;
2225
extern AVCodec libgsm_decoder;
2226
extern AVCodec bmp_decoder;
2227

    
2228
/* pcm codecs */
2229
#define PCM_CODEC(id, name) \
2230
extern AVCodec name ## _decoder; \
2231
extern AVCodec name ## _encoder
2232

    
2233
PCM_CODEC(CODEC_ID_PCM_S32LE, pcm_s32le);
2234
PCM_CODEC(CODEC_ID_PCM_S32BE, pcm_s32be);
2235
PCM_CODEC(CODEC_ID_PCM_U32LE, pcm_u32le);
2236
PCM_CODEC(CODEC_ID_PCM_U32BE, pcm_u32be);
2237
PCM_CODEC(CODEC_ID_PCM_S24LE, pcm_s24le);
2238
PCM_CODEC(CODEC_ID_PCM_S24BE, pcm_s24be);
2239
PCM_CODEC(CODEC_ID_PCM_U24LE, pcm_u24le);
2240
PCM_CODEC(CODEC_ID_PCM_U24BE, pcm_u24be);
2241
PCM_CODEC(CODEC_ID_PCM_S24DAUD, pcm_s24daud);
2242
PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
2243
PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
2244
PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
2245
PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
2246
PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
2247
PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
2248
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
2249
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
2250

    
2251
/* adpcm codecs */
2252

    
2253
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
2254
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
2255
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
2256
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
2257
PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
2258
PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
2259
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
2260
PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
2261
PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
2262
PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
2263
PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
2264
PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
2265
PCM_CODEC(CODEC_ID_ADPCM_CT, adpcm_ct);
2266
PCM_CODEC(CODEC_ID_ADPCM_SWF, adpcm_swf);
2267
PCM_CODEC(CODEC_ID_ADPCM_YAMAHA, adpcm_yamaha);
2268

    
2269
#undef PCM_CODEC
2270

    
2271
/* dummy raw video codec */
2272
extern AVCodec rawvideo_encoder;
2273
extern AVCodec rawvideo_decoder;
2274

    
2275
/* the following codecs use external GPL libs */
2276
extern AVCodec ac3_decoder;
2277
extern AVCodec dts_decoder;
2278

    
2279
/* subtitles */
2280
extern AVCodec dvdsub_encoder;
2281
extern AVCodec dvdsub_decoder;
2282
extern AVCodec dvbsub_encoder;
2283
extern AVCodec dvbsub_decoder;
2284

    
2285
/* resample.c */
2286

    
2287
struct ReSampleContext;
2288
struct AVResampleContext;
2289

    
2290
typedef struct ReSampleContext ReSampleContext;
2291

    
2292
ReSampleContext *audio_resample_init(int output_channels, int input_channels,
2293
                                     int output_rate, int input_rate);
2294
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
2295
void audio_resample_close(ReSampleContext *s);
2296

    
2297
struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
2298
int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
2299
void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
2300
void av_resample_close(struct AVResampleContext *c);
2301

    
2302
/* YUV420 format is assumed ! */
2303

    
2304
struct ImgReSampleContext;
2305

    
2306
typedef struct ImgReSampleContext ImgReSampleContext;
2307

    
2308
ImgReSampleContext *img_resample_init(int output_width, int output_height,
2309
                                      int input_width, int input_height);
2310

    
2311
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
2312
                                      int iwidth, int iheight,
2313
                                      int topBand, int bottomBand,
2314
                                      int leftBand, int rightBand,
2315
                                      int padtop, int padbottom,
2316
                                      int padleft, int padright);
2317

    
2318

    
2319
void img_resample(ImgReSampleContext *s,
2320
                  AVPicture *output, const AVPicture *input);
2321

    
2322
void img_resample_close(ImgReSampleContext *s);
2323

    
2324
/**
2325
 * Allocate memory for a picture.  Call avpicture_free to free it.
2326
 *
2327
 * @param picture the picture to be filled in.
2328
 * @param pix_fmt the format of the picture.
2329
 * @param width the width of the picture.
2330
 * @param height the height of the picture.
2331
 * @return 0 if successful, -1 if not.
2332
 */
2333
int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
2334

    
2335
/* Free a picture previously allocated by avpicture_alloc. */
2336
void avpicture_free(AVPicture *picture);
2337

    
2338
int avpicture_fill(AVPicture *picture, uint8_t *ptr,
2339
                   int pix_fmt, int width, int height);
2340
int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
2341
                     unsigned char *dest, int dest_size);
2342
int avpicture_get_size(int pix_fmt, int width, int height);
2343
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
2344
const char *avcodec_get_pix_fmt_name(int pix_fmt);
2345
void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
2346
enum PixelFormat avcodec_get_pix_fmt(const char* name);
2347
unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat p);
2348

    
2349
#define FF_LOSS_RESOLUTION  0x0001 /* loss due to resolution change */
2350
#define FF_LOSS_DEPTH       0x0002 /* loss due to color depth change */
2351
#define FF_LOSS_COLORSPACE  0x0004 /* loss due to color space conversion */
2352
#define FF_LOSS_ALPHA       0x0008 /* loss of alpha bits */
2353
#define FF_LOSS_COLORQUANT  0x0010 /* loss due to color quantization */
2354
#define FF_LOSS_CHROMA      0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
2355

    
2356
int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
2357
                             int has_alpha);
2358
int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
2359
                              int has_alpha, int *loss_ptr);
2360

    
2361
#define FF_ALPHA_TRANSP       0x0001 /* image has some totally transparent pixels */
2362
#define FF_ALPHA_SEMI_TRANSP  0x0002 /* image has some transparent pixels */
2363
int img_get_alpha_info(const AVPicture *src,
2364
                       int pix_fmt, int width, int height);
2365

    
2366
/* convert among pixel formats */
2367
int img_convert(AVPicture *dst, int dst_pix_fmt,
2368
                const AVPicture *src, int pix_fmt,
2369
                int width, int height);
2370

    
2371
/* deinterlace a picture */
2372
int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
2373
                          int pix_fmt, int width, int height);
2374

    
2375
/* external high level API */
2376

    
2377
extern AVCodec *first_avcodec;
2378

    
2379
/* returns LIBAVCODEC_VERSION_INT constant */
2380
unsigned avcodec_version(void);
2381
/* returns LIBAVCODEC_BUILD constant */
2382
unsigned avcodec_build(void);
2383
void avcodec_init(void);
2384

    
2385
void register_avcodec(AVCodec *format);
2386
AVCodec *avcodec_find_encoder(enum CodecID id);
2387
AVCodec *avcodec_find_encoder_by_name(const char *name);
2388
AVCodec *avcodec_find_decoder(enum CodecID id);
2389
AVCodec *avcodec_find_decoder_by_name(const char *name);
2390
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
2391

    
2392
void avcodec_get_context_defaults(AVCodecContext *s);
2393
AVCodecContext *avcodec_alloc_context(void);
2394
void avcodec_get_frame_defaults(AVFrame *pic);
2395
AVFrame *avcodec_alloc_frame(void);
2396

    
2397
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
2398
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
2399
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
2400
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
2401
int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h);
2402
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
2403

    
2404
int avcodec_thread_init(AVCodecContext *s, int thread_count);
2405
void avcodec_thread_free(AVCodecContext *s);
2406
int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2407
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2408
//FIXME func typedef
2409

    
2410
/**
2411
 * opens / inits the AVCodecContext.
2412
 * not thread save!
2413
 */
2414
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
2415

    
2416
int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
2417
                         int *frame_size_ptr,
2418
                         uint8_t *buf, int buf_size);
2419
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
2420
                         int *got_picture_ptr,
2421
                         uint8_t *buf, int buf_size);
2422
int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
2423
                            int *got_sub_ptr,
2424
                            const uint8_t *buf, int buf_size);
2425
int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata,
2426
                        int *data_size_ptr,
2427
                        uint8_t *buf, int buf_size);
2428
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2429
                         const short *samples);
2430
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2431
                         const AVFrame *pict);
2432
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2433
                            const AVSubtitle *sub);
2434

    
2435
int avcodec_close(AVCodecContext *avctx);
2436

    
2437
void avcodec_register_all(void);
2438

    
2439
void avcodec_flush_buffers(AVCodecContext *avctx);
2440

    
2441
void avcodec_default_free_buffers(AVCodecContext *s);
2442

    
2443
/* misc usefull functions */
2444

    
2445
/**
2446
 * returns a single letter to describe the picture type
2447
 */
2448
char av_get_pict_type_char(int pict_type);
2449

    
2450

    
2451
/* frame parsing */
2452
typedef struct AVCodecParserContext {
2453
    void *priv_data;
2454
    struct AVCodecParser *parser;
2455
    int64_t frame_offset; /* offset of the current frame */
2456
    int64_t cur_offset; /* current offset
2457
                           (incremented by each av_parser_parse()) */
2458
    int64_t last_frame_offset; /* offset of the last frame */
2459
    /* video info */
2460
    int pict_type; /* XXX: put it back in AVCodecContext */
2461
    int repeat_pict; /* XXX: put it back in AVCodecContext */
2462
    int64_t pts;     /* pts of the current frame */
2463
    int64_t dts;     /* dts of the current frame */
2464

    
2465
    /* private data */
2466
    int64_t last_pts;
2467
    int64_t last_dts;
2468
    int fetch_timestamp;
2469

    
2470
#define AV_PARSER_PTS_NB 4
2471
    int cur_frame_start_index;
2472
    int64_t cur_frame_offset[AV_PARSER_PTS_NB];
2473
    int64_t cur_frame_pts[AV_PARSER_PTS_NB];
2474
    int64_t cur_frame_dts[AV_PARSER_PTS_NB];
2475

    
2476
    int flags;
2477
#define PARSER_FLAG_COMPLETE_FRAMES           0x0001
2478
} AVCodecParserContext;
2479

    
2480
typedef struct AVCodecParser {
2481
    int codec_ids[5]; /* several codec IDs are permitted */
2482
    int priv_data_size;
2483
    int (*parser_init)(AVCodecParserContext *s);
2484
    int (*parser_parse)(AVCodecParserContext *s,
2485
                        AVCodecContext *avctx,
2486
                        uint8_t **poutbuf, int *poutbuf_size,
2487
                        const uint8_t *buf, int buf_size);
2488
    void (*parser_close)(AVCodecParserContext *s);
2489
    int (*split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size);
2490
    struct AVCodecParser *next;
2491
} AVCodecParser;
2492

    
2493
extern AVCodecParser *av_first_parser;
2494

    
2495
void av_register_codec_parser(AVCodecParser *parser);
2496
AVCodecParserContext *av_parser_init(int codec_id);
2497
int av_parser_parse(AVCodecParserContext *s,
2498
                    AVCodecContext *avctx,
2499
                    uint8_t **poutbuf, int *poutbuf_size,
2500
                    const uint8_t *buf, int buf_size,
2501
                    int64_t pts, int64_t dts);
2502
int av_parser_change(AVCodecParserContext *s,
2503
                     AVCodecContext *avctx,
2504
                     uint8_t **poutbuf, int *poutbuf_size,
2505
                     const uint8_t *buf, int buf_size, int keyframe);
2506
void av_parser_close(AVCodecParserContext *s);
2507

    
2508
extern AVCodecParser mpegvideo_parser;
2509
extern AVCodecParser mpeg4video_parser;
2510
extern AVCodecParser h261_parser;
2511
extern AVCodecParser h263_parser;
2512
extern AVCodecParser h264_parser;
2513
extern AVCodecParser mjpeg_parser;
2514
extern AVCodecParser pnm_parser;
2515
extern AVCodecParser mpegaudio_parser;
2516
extern AVCodecParser ac3_parser;
2517
extern AVCodecParser dvdsub_parser;
2518
extern AVCodecParser dvbsub_parser;
2519
extern AVCodecParser aac_parser;
2520

    
2521
/* memory */
2522
void *av_malloc(unsigned int size);
2523
void *av_mallocz(unsigned int size);
2524
void *av_realloc(void *ptr, unsigned int size);
2525
void av_free(void *ptr);
2526
char *av_strdup(const char *s);
2527
void av_freep(void *ptr);
2528
void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
2529
/* for static data only */
2530
/* call av_free_static to release all staticaly allocated tables */
2531
void av_free_static(void);
2532
void *av_mallocz_static(unsigned int size);
2533
void *av_realloc_static(void *ptr, unsigned int size);
2534

    
2535
/* add by bero : in adx.c */
2536
int is_adx(const unsigned char *buf,size_t bufsize);
2537

    
2538
void img_copy(AVPicture *dst, const AVPicture *src,
2539
              int pix_fmt, int width, int height);
2540

    
2541
/* av_log API */
2542

    
2543
#include <stdarg.h>
2544

    
2545
#define AV_LOG_QUIET -1
2546
#define AV_LOG_ERROR 0
2547
#define AV_LOG_INFO 1
2548
#define AV_LOG_DEBUG 2
2549

    
2550
#ifdef __GNUC__
2551
extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
2552
#else
2553
extern void av_log(void*, int level, const char *fmt, ...);
2554
#endif
2555

    
2556
extern void av_vlog(void*, int level, const char *fmt, va_list);
2557
extern int av_log_get_level(void);
2558
extern void av_log_set_level(int);
2559
extern void av_log_set_callback(void (*)(void*, int, const char*, va_list));
2560

    
2561
/* endian macros */
2562
#if !defined(BE_16) || !defined(BE_32) || !defined(LE_16) || !defined(LE_32)
2563
#define BE_16(x)  ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
2564
#define BE_32(x)  ((((uint8_t*)(x))[0] << 24) | \
2565
                   (((uint8_t*)(x))[1] << 16) | \
2566
                   (((uint8_t*)(x))[2] << 8) | \
2567
                    ((uint8_t*)(x))[3])
2568
#define LE_16(x)  ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
2569
#define LE_32(x)  ((((uint8_t*)(x))[3] << 24) | \
2570
                   (((uint8_t*)(x))[2] << 16) | \
2571
                   (((uint8_t*)(x))[1] << 8) | \
2572
                    ((uint8_t*)(x))[0])
2573
#endif
2574

    
2575
extern unsigned int av_xiphlacing(unsigned char *s, unsigned int v);
2576

    
2577
#ifdef __cplusplus
2578
}
2579
#endif
2580

    
2581
#endif /* AVCODEC_H */