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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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#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)+(11<<8)+0)
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#define LIBAVCODEC_VERSION      51.11.0
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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_VC1,
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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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    CODEC_ID_MMVIDEO,
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    CODEC_ID_ZMBV,
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    CODEC_ID_AVS,
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    CODEC_ID_SMACKVIDEO,
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    CODEC_ID_NUV,
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    CODEC_ID_KMVC,
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    CODEC_ID_FLASHSV,
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    CODEC_ID_CAVS,
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    CODEC_ID_JPEG2000,
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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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    CODEC_ID_ADPCM_SBPRO_4,
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    CODEC_ID_ADPCM_SBPRO_3,
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    CODEC_ID_ADPCM_SBPRO_2,
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    /* AMR */
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    CODEC_ID_AMR_NB= 0x12000,
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    CODEC_ID_AMR_WB,
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    /* RealAudio codecs*/
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    CODEC_ID_RA_144= 0x13000,
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    CODEC_ID_RA_288,
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    /* various DPCM codecs */
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    CODEC_ID_ROQ_DPCM= 0x14000,
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    CODEC_ID_INTERPLAY_DPCM,
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    CODEC_ID_XAN_DPCM,
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    CODEC_ID_SOL_DPCM,
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    CODEC_ID_MP2= 0x15000,
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    CODEC_ID_MP3, /* prefered ID for MPEG Audio layer 1, 2 or3 decoding */
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    CODEC_ID_AAC,
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    CODEC_ID_MPEG4AAC,
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    CODEC_ID_AC3,
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    CODEC_ID_DTS,
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    CODEC_ID_VORBIS,
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    CODEC_ID_DVAUDIO,
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    CODEC_ID_WMAV1,
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    CODEC_ID_WMAV2,
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    CODEC_ID_MACE3,
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    CODEC_ID_MACE6,
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    CODEC_ID_VMDAUDIO,
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    CODEC_ID_SONIC,
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    CODEC_ID_SONIC_LS,
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    CODEC_ID_FLAC,
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    CODEC_ID_MP3ADU,
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    CODEC_ID_MP3ON4,
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    CODEC_ID_SHORTEN,
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    CODEC_ID_ALAC,
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    CODEC_ID_WESTWOOD_SND1,
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    CODEC_ID_GSM,
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    CODEC_ID_QDM2,
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    CODEC_ID_COOK,
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    CODEC_ID_TRUESPEECH,
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    CODEC_ID_TTA,
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    CODEC_ID_SMACKAUDIO,
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    CODEC_ID_QCELP,
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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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/* currently unused, may be used if 24/32 bits samples ever supported */
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/* all in native endian */
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enum SampleFormat {
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    SAMPLE_FMT_NONE = -1,
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    SAMPLE_FMT_U8,              ///< unsigned 8 bits
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    SAMPLE_FMT_S16,             ///< signed 16 bits
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    SAMPLE_FMT_S24,             ///< signed 24 bits
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    SAMPLE_FMT_S32,             ///< signed 32 bits
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    SAMPLE_FMT_FLT,             ///< float
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};
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/* in bytes */
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#define AVCODEC_MAX_AUDIO_FRAME_SIZE 192000 // 1 second of 48khz 32bit audio
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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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#define FF_MAX_B_FRAMES 16
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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     ((int)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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#define CODEC_FLAG2_INTRA_VLC     0x00000800 ///< use MPEG-2 intra VLC table
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#define CODEC_FLAG2_MEMC_ONLY     0x00001000 ///< only do ME/MC (I frames -> ref, P frame -> ME+MC)
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/* Unsupported options :
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 *              Syntax Arithmetic coding (SAC)
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 *              Reference Picture Selection
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 *              Independant Segment Decoding */
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/* /Fx */
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/* codec capabilities */
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#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< decoder can use draw_horiz_band callback
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/**
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 * Codec uses get_buffer() for allocating buffers.
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 * direct rendering method 1
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 */
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#define CODEC_CAP_DR1             0x0002
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/* if 'parse_only' field is true, then avcodec_parse_frame() can be
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   used */
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#define CODEC_CAP_PARSE_ONLY      0x0004
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#define CODEC_CAP_TRUNCATED       0x0008
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/* codec can export data for HW decoding (XvMC) */
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#define CODEC_CAP_HWACCEL         0x0010
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/**
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 * codec has a non zero delay and needs to be feeded with NULL at the end to get the delayed data.
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 * if this is not set, the codec is guranteed to never be feeded with NULL data
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 */
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#define CODEC_CAP_DELAY           0x0020
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/**
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 * Codec can be fed a final frame with a smaller size.
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 * This can be used to prevent truncation of the last audio samples.
369
 */
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#define CODEC_CAP_SMALL_LAST_FRAME 0x0040
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//the following defines may change, don't expect compatibility if you use them
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#define MB_TYPE_INTRA4x4   0x0001
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#define MB_TYPE_INTRA16x16 0x0002 //FIXME h264 specific
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#define MB_TYPE_INTRA_PCM  0x0004 //FIXME h264 specific
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#define MB_TYPE_16x16      0x0008
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#define MB_TYPE_16x8       0x0010
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#define MB_TYPE_8x16       0x0020
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#define MB_TYPE_8x8        0x0040
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#define MB_TYPE_INTERLACED 0x0080
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#define MB_TYPE_DIRECT2     0x0100 //FIXME
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#define MB_TYPE_ACPRED     0x0200
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#define MB_TYPE_GMC        0x0400
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#define MB_TYPE_SKIP       0x0800
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#define MB_TYPE_P0L0       0x1000
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#define MB_TYPE_P1L0       0x2000
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#define MB_TYPE_P0L1       0x4000
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#define MB_TYPE_P1L1       0x8000
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#define MB_TYPE_L0         (MB_TYPE_P0L0 | MB_TYPE_P1L0)
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#define MB_TYPE_L1         (MB_TYPE_P0L1 | MB_TYPE_P1L1)
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#define MB_TYPE_L0L1       (MB_TYPE_L0   | MB_TYPE_L1)
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#define MB_TYPE_QUANT      0x00010000
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#define MB_TYPE_CBP        0x00020000
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//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...)
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/**
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 * Pan Scan area.
398
 * this specifies the area which should be displayed. Note there may be multiple such areas for one frame
399
 */
400
typedef struct AVPanScan{
401
    /**
402
     * id.
403
     * - encoding: set by user.
404
     * - decoding: set by lavc
405
     */
406
    int id;
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408
    /**
409
     * width and height in 1/16 pel
410
     * - encoding: set by user.
411
     * - decoding: set by lavc
412
     */
413
    int width;
414
    int height;
415

    
416
    /**
417
     * position of the top left corner in 1/16 pel for up to 3 fields/frames.
418
     * - encoding: set by user.
419
     * - decoding: set by lavc
420
     */
421
    int16_t position[3][2];
422
}AVPanScan;
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424
#define FF_COMMON_FRAME \
425
    /**\
426
     * pointer to the picture planes.\
427
     * this might be different from the first allocated byte\
428
     * - encoding: \
429
     * - decoding: \
430
     */\
431
    uint8_t *data[4];\
432
    int linesize[4];\
433
    /**\
434
     * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
435
     * this isn't used by lavc unless the default get/release_buffer() is used\
436
     * - encoding: \
437
     * - decoding: \
438
     */\
439
    uint8_t *base[4];\
440
    /**\
441
     * 1 -> keyframe, 0-> not\
442
     * - encoding: set by lavc\
443
     * - decoding: set by lavc\
444
     */\
445
    int key_frame;\
446
\
447
    /**\
448
     * picture type of the frame, see ?_TYPE below.\
449
     * - encoding: set by lavc for coded_picture (and set by user for input)\
450
     * - decoding: set by lavc\
451
     */\
452
    int pict_type;\
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\
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    /**\
455
     * presentation timestamp in time_base units (time when frame should be shown to user)\
456
     * if AV_NOPTS_VALUE then frame_rate = 1/time_base will be assumed\
457
     * - encoding: MUST be set by user\
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     * - decoding: set by lavc\
459
     */\
460
    int64_t pts;\
461
\
462
    /**\
463
     * picture number in bitstream order.\
464
     * - encoding: set by\
465
     * - decoding: set by lavc\
466
     */\
467
    int coded_picture_number;\
468
    /**\
469
     * picture number in display order.\
470
     * - encoding: set by\
471
     * - decoding: set by lavc\
472
     */\
473
    int display_picture_number;\
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\
475
    /**\
476
     * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
477
     * - encoding: set by lavc for coded_picture (and set by user for input)\
478
     * - decoding: set by lavc\
479
     */\
480
    int quality; \
481
\
482
    /**\
483
     * buffer age (1->was last buffer and dint change, 2->..., ...).\
484
     * set to INT_MAX if the buffer has not been used yet \
485
     * - encoding: unused\
486
     * - decoding: MUST be set by get_buffer()\
487
     */\
488
    int age;\
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\
490
    /**\
491
     * is this picture used as reference\
492
     * - encoding: unused\
493
     * - decoding: set by lavc (before get_buffer() call))\
494
     */\
495
    int reference;\
496
\
497
    /**\
498
     * QP table\
499
     * - encoding: unused\
500
     * - decoding: set by lavc\
501
     */\
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    int8_t *qscale_table;\
503
    /**\
504
     * QP store stride\
505
     * - encoding: unused\
506
     * - decoding: set by lavc\
507
     */\
508
    int qstride;\
509
\
510
    /**\
511
     * mbskip_table[mb]>=1 if MB didnt change\
512
     * stride= mb_width = (width+15)>>4\
513
     * - encoding: unused\
514
     * - decoding: set by lavc\
515
     */\
516
    uint8_t *mbskip_table;\
517
\
518
    /**\
519
     * Motion vector table.\
520
     * @code\
521
     * example:\
522
     * int mv_sample_log2= 4 - motion_subsample_log2;\
523
     * int mb_width= (width+15)>>4;\
524
     * int mv_stride= (mb_width << mv_sample_log2) + 1;\
525
     * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y];\
526
     * @endcode\
527
     * - encoding: set by user\
528
     * - decoding: set by lavc\
529
     */\
530
    int16_t (*motion_val[2])[2];\
531
\
532
    /**\
533
     * Macroblock type table\
534
     * mb_type_base + mb_width + 2\
535
     * - encoding: set by user\
536
     * - decoding: set by lavc\
537
     */\
538
    uint32_t *mb_type;\
539
\
540
    /**\
541
     * log2 of the size of the block which a single vector in motion_val represents: \
542
     * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2)\
543
     * - encoding: unused\
544
     * - decoding: set by lavc\
545
     */\
546
    uint8_t motion_subsample_log2;\
547
\
548
    /**\
549
     * for some private data of the user\
550
     * - encoding: unused\
551
     * - decoding: set by user\
552
     */\
553
    void *opaque;\
554
\
555
    /**\
556
     * error\
557
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
558
     * - decoding: unused\
559
     */\
560
    uint64_t error[4];\
561
\
562
    /**\
563
     * type of the buffer (to keep track of who has to dealloc data[*])\
564
     * - encoding: set by the one who allocs it\
565
     * - decoding: set by the one who allocs it\
566
     * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
567
     */\
568
    int type;\
569
    \
570
    /**\
571
     * when decoding, this signal how much the picture must be delayed.\
572
     * extra_delay = repeat_pict / (2*fps)\
573
     * - encoding: unused\
574
     * - decoding: set by lavc\
575
     */\
576
    int repeat_pict;\
577
    \
578
    /**\
579
     * \
580
     */\
581
    int qscale_type;\
582
    \
583
    /**\
584
     * The content of the picture is interlaced.\
585
     * - encoding: set by user\
586
     * - decoding: set by lavc (default 0)\
587
     */\
588
    int interlaced_frame;\
589
    \
590
    /**\
591
     * if the content is interlaced, is top field displayed first.\
592
     * - encoding: set by user\
593
     * - decoding: set by lavc\
594
     */\
595
    int top_field_first;\
596
    \
597
    /**\
598
     * Pan scan.\
599
     * - encoding: set by user\
600
     * - decoding: set by lavc\
601
     */\
602
    AVPanScan *pan_scan;\
603
    \
604
    /**\
605
     * tell user application that palette has changed from previous frame.\
606
     * - encoding: ??? (no palette-enabled encoder yet)\
607
     * - decoding: set by lavc (default 0)\
608
     */\
609
    int palette_has_changed;\
610
    \
611
    /**\
612
     * Codec suggestion on buffer type if != 0\
613
     * - encoding: unused\
614
     * - decoding: set by lavc (before get_buffer() call))\
615
     */\
616
    int buffer_hints;\
617
\
618
    /**\
619
     * DCT coeffitients\
620
     * - encoding: unused\
621
     * - decoding: set by lavc\
622
     */\
623
    short *dct_coeff;\
624
\
625
    /**\
626
     * Motion referece frame index\
627
     * - encoding: set by user\
628
     * - decoding: set by lavc\
629
     */\
630
    int8_t *ref_index[2];
631

    
632
#define FF_QSCALE_TYPE_MPEG1 0
633
#define FF_QSCALE_TYPE_MPEG2 1
634
#define FF_QSCALE_TYPE_H264  2
635

    
636
#define FF_BUFFER_TYPE_INTERNAL 1
637
#define FF_BUFFER_TYPE_USER     2 ///< Direct rendering buffers (image is (de)allocated by user)
638
#define FF_BUFFER_TYPE_SHARED   4 ///< buffer from somewhere else, don't dealloc image (data/base), all other tables are not shared
639
#define FF_BUFFER_TYPE_COPY     8 ///< just a (modified) copy of some other buffer, don't dealloc anything
640

    
641

    
642
#define FF_I_TYPE 1 // Intra
643
#define FF_P_TYPE 2 // Predicted
644
#define FF_B_TYPE 3 // Bi-dir predicted
645
#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
646
#define FF_SI_TYPE 5
647
#define FF_SP_TYPE 6
648

    
649
#define FF_BUFFER_HINTS_VALID    0x01 // Buffer hints value is meaningful (if 0 ignore)
650
#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
651
#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
652
#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
653

    
654
/**
655
 * Audio Video Frame.
656
 */
657
typedef struct AVFrame {
658
    FF_COMMON_FRAME
659
} AVFrame;
660

    
661
#define DEFAULT_FRAME_RATE_BASE 1001000
662

    
663
/**
664
 * main external api structure.
665
 */
666
typedef struct AVCodecContext {
667
    /**
668
     * Info on struct for av_log
669
     * - set by avcodec_alloc_context
670
     */
671
    AVClass *av_class;
672
    /**
673
     * the average bitrate.
674
     * - encoding: set by user. unused for constant quantizer encoding
675
     * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream
676
     */
677
    int bit_rate;
678

    
679
    /**
680
     * number of bits the bitstream is allowed to diverge from the reference.
681
     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
682
     * - encoding: set by user. unused for constant quantizer encoding
683
     * - decoding: unused
684
     */
685
    int bit_rate_tolerance;
686

    
687
    /**
688
     * CODEC_FLAG_*.
689
     * - encoding: set by user.
690
     * - decoding: set by user.
691
     */
692
    int flags;
693

    
694
    /**
695
     * some codecs needs additionnal format info. It is stored here
696
     * - encoding: set by user.
697
     * - decoding: set by lavc. (FIXME is this ok?)
698
     */
699
    int sub_id;
700

    
701
    /**
702
     * motion estimation algorithm used for video coding.
703
     * 1 (zero), 2 (full), 3 (log), 4 (phods), 5 (epzs), 6 (x1), 7 (hex),
704
     * 8 (umh), 9 (iter) [7, 8 are x264 specific, 9 is snow specific]
705
     * - encoding: MUST be set by user.
706
     * - decoding: unused
707
     */
708
    int me_method;
709

    
710
    /**
711
     * some codecs need / can use extra-data like huffman tables.
712
     * mjpeg: huffman tables
713
     * rv10: additional flags
714
     * mpeg4: global headers (they can be in the bitstream or here)
715
     * the allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
716
     * then extradata_size to avoid prolems if its read with the bitstream reader
717
     * the bytewise contents of extradata must not depend on the architecture or cpu endianness
718
     * - encoding: set/allocated/freed by lavc.
719
     * - decoding: set/allocated/freed by user.
720
     */
721
    void *extradata;
722
    int extradata_size;
723

    
724
    /**
725
     * this is the fundamental unit of time (in seconds) in terms
726
     * of which frame timestamps are represented. for fixed-fps content,
727
     * timebase should be 1/framerate and timestamp increments should be
728
     * identically 1.
729
     * - encoding: MUST be set by user
730
     * - decoding: set by lavc.
731
     */
732
    AVRational time_base;
733

    
734
    /* video only */
735
    /**
736
     * picture width / height.
737
     * - encoding: MUST be set by user.
738
     * - decoding: set by lavc.
739
     * Note, for compatibility its possible to set this instead of
740
     * coded_width/height before decoding
741
     */
742
    int width, height;
743

    
744
#define FF_ASPECT_EXTENDED 15
745

    
746
    /**
747
     * the number of pictures in a group of pitures, or 0 for intra_only.
748
     * - encoding: set by user.
749
     * - decoding: unused
750
     */
751
    int gop_size;
752

    
753
    /**
754
     * pixel format, see PIX_FMT_xxx.
755
     * - encoding: set by user.
756
     * - decoding: set by lavc.
757
     */
758
    enum PixelFormat pix_fmt;
759

    
760
    /**
761
     * Frame rate emulation. If not zero lower layer (i.e. format handler)
762
     * has to read frames at native frame rate.
763
     * - encoding: set by user.
764
     * - decoding: unused.
765
     */
766
    int rate_emu;
767

    
768
    /**
769
     * if non NULL, 'draw_horiz_band' is called by the libavcodec
770
     * decoder to draw an horizontal band. It improve cache usage. Not
771
     * all codecs can do that. You must check the codec capabilities
772
     * before
773
     * - encoding: unused
774
     * - decoding: set by user.
775
     * @param height the height of the slice
776
     * @param y the y position of the slice
777
     * @param type 1->top field, 2->bottom field, 3->frame
778
     * @param offset offset into the AVFrame.data from which the slice should be read
779
     */
780
    void (*draw_horiz_band)(struct AVCodecContext *s,
781
                            const AVFrame *src, int offset[4],
782
                            int y, int type, int height);
783

    
784
    /* audio only */
785
    int sample_rate; ///< samples per sec
786
    int channels;
787

    
788
    /**
789
     * audio sample format.
790
     * - encoding: set by user.
791
     * - decoding: set by lavc.
792
     */
793
    enum SampleFormat sample_fmt;  ///< sample format, currenly unused
794

    
795
    /* the following data should not be initialized */
796
    /**
797
     * samples per packet. initialized when calling 'init'
798
     */
799
    int frame_size;
800
    int frame_number;   ///< audio or video frame number
801
    int real_pict_num;  ///< returns the real picture number of previous encoded frame
802

    
803
    /**
804
     * number of frames the decoded output will be delayed relative to
805
     * the encoded input.
806
     * - encoding: set by lavc.
807
     * - decoding: unused
808
     */
809
    int delay;
810

    
811
    /* - encoding parameters */
812
    float qcompress;  ///< amount of qscale change between easy & hard scenes (0.0-1.0)
813
    float qblur;      ///< amount of qscale smoothing over time (0.0-1.0)
814

    
815
    /**
816
     * minimum quantizer.
817
     * - encoding: set by user.
818
     * - decoding: unused
819
     */
820
    int qmin;
821

    
822
    /**
823
     * maximum quantizer.
824
     * - encoding: set by user.
825
     * - decoding: unused
826
     */
827
    int qmax;
828

    
829
    /**
830
     * maximum quantizer difference etween frames.
831
     * - encoding: set by user.
832
     * - decoding: unused
833
     */
834
    int max_qdiff;
835

    
836
    /**
837
     * maximum number of b frames between non b frames.
838
     * note: the output will be delayed by max_b_frames+1 relative to the input
839
     * - encoding: set by user.
840
     * - decoding: unused
841
     */
842
    int max_b_frames;
843

    
844
    /**
845
     * qscale factor between ip and b frames.
846
     * - encoding: set by user.
847
     * - decoding: unused
848
     */
849
    float b_quant_factor;
850

    
851
    /** obsolete FIXME remove */
852
    int rc_strategy;
853
#define FF_RC_STRATEGY_XVID 1
854

    
855
    int b_frame_strategy;
856

    
857
    /**
858
     * hurry up amount.
859
     * deprecated in favor of skip_idct and skip_frame
860
     * - encoding: unused
861
     * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
862
     */
863
    int hurry_up;
864

    
865
    struct AVCodec *codec;
866

    
867
    void *priv_data;
868

    
869
    /* unused, FIXME remove*/
870
    int rtp_mode;
871

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

    
879

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

    
888
    /* statistics, used for 2-pass encoding */
889
    int mv_bits;
890
    int header_bits;
891
    int i_tex_bits;
892
    int p_tex_bits;
893
    int i_count;
894
    int p_count;
895
    int skip_count;
896
    int misc_bits;
897

    
898
    /**
899
     * number of bits used for the previously encoded frame.
900
     * - encoding: set by lavc
901
     * - decoding: unused
902
     */
903
    int frame_bits;
904

    
905
    /**
906
     * private data of the user, can be used to carry app specific stuff.
907
     * - encoding: set by user
908
     * - decoding: set by user
909
     */
910
    void *opaque;
911

    
912
    char codec_name[32];
913
    enum CodecType codec_type; /* see CODEC_TYPE_xxx */
914
    enum CodecID codec_id; /* see CODEC_ID_xxx */
915

    
916
    /**
917
     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
918
     * this is used to workaround some encoder bugs
919
     * - encoding: set by user, if not then the default based on codec_id will be used
920
     * - decoding: set by user, will be converted to upper case by lavc during init
921
     */
922
    unsigned int codec_tag;
923

    
924
    /**
925
     * workaround bugs in encoders which sometimes cannot be detected automatically.
926
     * - encoding: set by user
927
     * - decoding: set by user
928
     */
929
    int workaround_bugs;
930
#define FF_BUG_AUTODETECT       1  ///< autodetection
931
#define FF_BUG_OLD_MSMPEG4      2
932
#define FF_BUG_XVID_ILACE       4
933
#define FF_BUG_UMP4             8
934
#define FF_BUG_NO_PADDING       16
935
#define FF_BUG_AMV              32
936
#define FF_BUG_AC_VLC           0  ///< will be removed, libavcodec can now handle these non compliant files by default
937
#define FF_BUG_QPEL_CHROMA      64
938
#define FF_BUG_STD_QPEL         128
939
#define FF_BUG_QPEL_CHROMA2     256
940
#define FF_BUG_DIRECT_BLOCKSIZE 512
941
#define FF_BUG_EDGE             1024
942
#define FF_BUG_HPEL_CHROMA      2048
943
#define FF_BUG_DC_CLIP          4096
944
#define FF_BUG_MS               8192 ///< workaround various bugs in microsofts broken decoders
945
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
946

    
947
    /**
948
     * luma single coeff elimination threshold.
949
     * - encoding: set by user
950
     * - decoding: unused
951
     */
952
    int luma_elim_threshold;
953

    
954
    /**
955
     * chroma single coeff elimination threshold.
956
     * - encoding: set by user
957
     * - decoding: unused
958
     */
959
    int chroma_elim_threshold;
960

    
961
    /**
962
     * strictly follow the std (MPEG4, ...).
963
     * - encoding: set by user
964
     * - decoding: unused
965
     */
966
    int strict_std_compliance;
967
#define FF_COMPLIANCE_VERY_STRICT   2 ///< strictly conform to a older more strict version of the spec or reference software
968
#define FF_COMPLIANCE_STRICT        1 ///< strictly conform to all the things in the spec no matter what consequences
969
#define FF_COMPLIANCE_NORMAL        0
970
#define FF_COMPLIANCE_INOFFICIAL   -1 ///< allow inofficial extensions
971
#define FF_COMPLIANCE_EXPERIMENTAL -2 ///< allow non standarized experimental things
972

    
973
    /**
974
     * qscale offset between ip and b frames.
975
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
976
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
977
     * - encoding: set by user.
978
     * - decoding: unused
979
     */
980
    float b_quant_offset;
981

    
982
    /**
983
     * error resilience higher values will detect more errors but may missdetect
984
     * some more or less valid parts as errors.
985
     * - encoding: unused
986
     * - decoding: set by user
987
     */
988
    int error_resilience;
989
#define FF_ER_CAREFUL         1
990
#define FF_ER_COMPLIANT       2
991
#define FF_ER_AGGRESSIVE      3
992
#define FF_ER_VERY_AGGRESSIVE 4
993

    
994
    /**
995
     * called at the beginning of each frame to get a buffer for it.
996
     * if pic.reference is set then the frame will be read later by lavc
997
     * avcodec_align_dimensions() should be used to find the required width and
998
     * height, as they normally need to be rounded up to the next multiple of 16
999
     * - encoding: unused
1000
     * - decoding: set by lavc, user can override
1001
     */
1002
    int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
1003

    
1004
    /**
1005
     * called to release buffers which where allocated with get_buffer.
1006
     * a released buffer can be reused in get_buffer()
1007
     * pic.data[*] must be set to NULL
1008
     * - encoding: unused
1009
     * - decoding: set by lavc, user can override
1010
     */
1011
    void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
1012

    
1013
    /**
1014
     * if 1 the stream has a 1 frame delay during decoding.
1015
     * - encoding: set by lavc
1016
     * - decoding: set by lavc
1017
     */
1018
    int has_b_frames;
1019

    
1020
    /**
1021
     * number of bytes per packet if constant and known or 0
1022
     * used by some WAV based audio codecs
1023
     */
1024
    int block_align;
1025

    
1026
    int parse_only; /* - decoding only: if true, only parsing is done
1027
                       (function avcodec_parse_frame()). The frame
1028
                       data is returned. Only MPEG codecs support this now. */
1029

    
1030
    /**
1031
     * 0-> h263 quant 1-> mpeg quant.
1032
     * - encoding: set by user.
1033
     * - decoding: unused
1034
     */
1035
    int mpeg_quant;
1036

    
1037
    /**
1038
     * pass1 encoding statistics output buffer.
1039
     * - encoding: set by lavc
1040
     * - decoding: unused
1041
     */
1042
    char *stats_out;
1043

    
1044
    /**
1045
     * pass2 encoding statistics input buffer.
1046
     * concatenated stuff from stats_out of pass1 should be placed here
1047
     * - encoding: allocated/set/freed by user
1048
     * - decoding: unused
1049
     */
1050
    char *stats_in;
1051

    
1052
    /**
1053
     * ratecontrol qmin qmax limiting method.
1054
     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
1055
     * - encoding: set by user.
1056
     * - decoding: unused
1057
     */
1058
    float rc_qsquish;
1059

    
1060
    float rc_qmod_amp;
1061
    int rc_qmod_freq;
1062

    
1063
    /**
1064
     * ratecontrol override, see RcOverride.
1065
     * - encoding: allocated/set/freed by user.
1066
     * - decoding: unused
1067
     */
1068
    RcOverride *rc_override;
1069
    int rc_override_count;
1070

    
1071
    /**
1072
     * rate control equation.
1073
     * - encoding: set by user
1074
     * - decoding: unused
1075
     */
1076
    char *rc_eq;
1077

    
1078
    /**
1079
     * maximum bitrate.
1080
     * - encoding: set by user.
1081
     * - decoding: unused
1082
     */
1083
    int rc_max_rate;
1084

    
1085
    /**
1086
     * minimum bitrate.
1087
     * - encoding: set by user.
1088
     * - decoding: unused
1089
     */
1090
    int rc_min_rate;
1091

    
1092
    /**
1093
     * decoder bitstream buffer size.
1094
     * - encoding: set by user.
1095
     * - decoding: unused
1096
     */
1097
    int rc_buffer_size;
1098
    float rc_buffer_aggressivity;
1099

    
1100
    /**
1101
     * qscale factor between p and i frames.
1102
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1103
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
1104
     * - encoding: set by user.
1105
     * - decoding: unused
1106
     */
1107
    float i_quant_factor;
1108

    
1109
    /**
1110
     * qscale offset between p and i frames.
1111
     * - encoding: set by user.
1112
     * - decoding: unused
1113
     */
1114
    float i_quant_offset;
1115

    
1116
    /**
1117
     * initial complexity for pass1 ratecontrol.
1118
     * - encoding: set by user.
1119
     * - decoding: unused
1120
     */
1121
    float rc_initial_cplx;
1122

    
1123
    /**
1124
     * dct algorithm, see FF_DCT_* below.
1125
     * - encoding: set by user
1126
     * - decoding: unused
1127
     */
1128
    int dct_algo;
1129
#define FF_DCT_AUTO    0
1130
#define FF_DCT_FASTINT 1
1131
#define FF_DCT_INT     2
1132
#define FF_DCT_MMX     3
1133
#define FF_DCT_MLIB    4
1134
#define FF_DCT_ALTIVEC 5
1135
#define FF_DCT_FAAN    6
1136

    
1137
    /**
1138
     * luminance masking (0-> disabled).
1139
     * - encoding: set by user
1140
     * - decoding: unused
1141
     */
1142
    float lumi_masking;
1143

    
1144
    /**
1145
     * temporary complexity masking (0-> disabled).
1146
     * - encoding: set by user
1147
     * - decoding: unused
1148
     */
1149
    float temporal_cplx_masking;
1150

    
1151
    /**
1152
     * spatial complexity masking (0-> disabled).
1153
     * - encoding: set by user
1154
     * - decoding: unused
1155
     */
1156
    float spatial_cplx_masking;
1157

    
1158
    /**
1159
     * p block masking (0-> disabled).
1160
     * - encoding: set by user
1161
     * - decoding: unused
1162
     */
1163
    float p_masking;
1164

    
1165
    /**
1166
     * darkness masking (0-> disabled).
1167
     * - encoding: set by user
1168
     * - decoding: unused
1169
     */
1170
    float dark_masking;
1171

    
1172

    
1173
    /* for binary compatibility */
1174
    int unused;
1175

    
1176
    /**
1177
     * idct algorithm, see FF_IDCT_* below.
1178
     * - encoding: set by user
1179
     * - decoding: set by user
1180
     */
1181
    int idct_algo;
1182
#define FF_IDCT_AUTO         0
1183
#define FF_IDCT_INT          1
1184
#define FF_IDCT_SIMPLE       2
1185
#define FF_IDCT_SIMPLEMMX    3
1186
#define FF_IDCT_LIBMPEG2MMX  4
1187
#define FF_IDCT_PS2          5
1188
#define FF_IDCT_MLIB         6
1189
#define FF_IDCT_ARM          7
1190
#define FF_IDCT_ALTIVEC      8
1191
#define FF_IDCT_SH4          9
1192
#define FF_IDCT_SIMPLEARM    10
1193
#define FF_IDCT_H264         11
1194
#define FF_IDCT_VP3          12
1195
#define FF_IDCT_IPP          13
1196
#define FF_IDCT_XVIDMMX      14
1197
#define FF_IDCT_CAVS         15
1198

    
1199
    /**
1200
     * slice count.
1201
     * - encoding: set by lavc
1202
     * - decoding: set by user (or 0)
1203
     */
1204
    int slice_count;
1205
    /**
1206
     * slice offsets in the frame in bytes.
1207
     * - encoding: set/allocated by lavc
1208
     * - decoding: set/allocated by user (or NULL)
1209
     */
1210
    int *slice_offset;
1211

    
1212
    /**
1213
     * error concealment flags.
1214
     * - encoding: unused
1215
     * - decoding: set by user
1216
     */
1217
    int error_concealment;
1218
#define FF_EC_GUESS_MVS   1
1219
#define FF_EC_DEBLOCK     2
1220

    
1221
    /**
1222
     * dsp_mask could be add used to disable unwanted CPU features
1223
     * CPU features (i.e. MMX, SSE. ...)
1224
     *
1225
     * with FORCE flag you may instead enable given CPU features
1226
     * (Dangerous: usable in case of misdetection, improper usage however will
1227
     * result into program crash)
1228
     */
1229
    unsigned dsp_mask;
1230
#define FF_MM_FORCE    0x80000000 /* force usage of selected flags (OR) */
1231
    /* lower 16 bits - CPU features */
1232
#ifdef HAVE_MMX
1233
#define FF_MM_MMX      0x0001 /* standard MMX */
1234
#define FF_MM_3DNOW    0x0004 /* AMD 3DNOW */
1235
#define FF_MM_MMXEXT   0x0002 /* SSE integer functions or AMD MMX ext */
1236
#define FF_MM_SSE      0x0008 /* SSE functions */
1237
#define FF_MM_SSE2     0x0010 /* PIV SSE2 functions */
1238
#define FF_MM_3DNOWEXT 0x0020 /* AMD 3DNowExt */
1239
#endif /* HAVE_MMX */
1240
#ifdef HAVE_IWMMXT
1241
#define FF_MM_IWMMXT   0x0100 /* XScale IWMMXT */
1242
#endif /* HAVE_IWMMXT */
1243

    
1244
    /**
1245
     * bits per sample/pixel from the demuxer (needed for huffyuv).
1246
     * - encoding: set by lavc
1247
     * - decoding: set by user
1248
     */
1249
     int bits_per_sample;
1250

    
1251
    /**
1252
     * prediction method (needed for huffyuv).
1253
     * - encoding: set by user
1254
     * - decoding: unused
1255
     */
1256
     int prediction_method;
1257
#define FF_PRED_LEFT   0
1258
#define FF_PRED_PLANE  1
1259
#define FF_PRED_MEDIAN 2
1260

    
1261
    /**
1262
     * sample aspect ratio (0 if unknown).
1263
     * numerator and denominator must be relative prime and smaller then 256 for some video standards
1264
     * - encoding: set by user.
1265
     * - decoding: set by lavc.
1266
     */
1267
    AVRational sample_aspect_ratio;
1268

    
1269
    /**
1270
     * the picture in the bitstream.
1271
     * - encoding: set by lavc
1272
     * - decoding: set by lavc
1273
     */
1274
    AVFrame *coded_frame;
1275

    
1276
    /**
1277
     * debug.
1278
     * - encoding: set by user.
1279
     * - decoding: set by user.
1280
     */
1281
    int debug;
1282
#define FF_DEBUG_PICT_INFO 1
1283
#define FF_DEBUG_RC        2
1284
#define FF_DEBUG_BITSTREAM 4
1285
#define FF_DEBUG_MB_TYPE   8
1286
#define FF_DEBUG_QP        16
1287
#define FF_DEBUG_MV        32
1288
#define FF_DEBUG_DCT_COEFF 0x00000040
1289
#define FF_DEBUG_SKIP      0x00000080
1290
#define FF_DEBUG_STARTCODE 0x00000100
1291
#define FF_DEBUG_PTS       0x00000200
1292
#define FF_DEBUG_ER        0x00000400
1293
#define FF_DEBUG_MMCO      0x00000800
1294
#define FF_DEBUG_BUGS      0x00001000
1295
#define FF_DEBUG_VIS_QP    0x00002000
1296
#define FF_DEBUG_VIS_MB_TYPE 0x00004000
1297

    
1298
    /**
1299
     * debug.
1300
     * - encoding: set by user.
1301
     * - decoding: set by user.
1302
     */
1303
    int debug_mv;
1304
#define FF_DEBUG_VIS_MV_P_FOR  0x00000001 //visualize forward predicted MVs of P frames
1305
#define FF_DEBUG_VIS_MV_B_FOR  0x00000002 //visualize forward predicted MVs of B frames
1306
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1307

    
1308
    /**
1309
     * error.
1310
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1311
     * - decoding: unused
1312
     */
1313
    uint64_t error[4];
1314

    
1315
    /**
1316
     * minimum MB quantizer.
1317
     * - encoding: unused
1318
     * - decoding: unused
1319
     */
1320
    int mb_qmin;
1321

    
1322
    /**
1323
     * maximum MB quantizer.
1324
     * - encoding: unused
1325
     * - decoding: unused
1326
     */
1327
    int mb_qmax;
1328

    
1329
    /**
1330
     * motion estimation compare function.
1331
     * - encoding: set by user.
1332
     * - decoding: unused
1333
     */
1334
    int me_cmp;
1335
    /**
1336
     * subpixel motion estimation compare function.
1337
     * - encoding: set by user.
1338
     * - decoding: unused
1339
     */
1340
    int me_sub_cmp;
1341
    /**
1342
     * macroblock compare function (not supported yet).
1343
     * - encoding: set by user.
1344
     * - decoding: unused
1345
     */
1346
    int mb_cmp;
1347
    /**
1348
     * interlaced dct compare function
1349
     * - encoding: set by user.
1350
     * - decoding: unused
1351
     */
1352
    int ildct_cmp;
1353
#define FF_CMP_SAD  0
1354
#define FF_CMP_SSE  1
1355
#define FF_CMP_SATD 2
1356
#define FF_CMP_DCT  3
1357
#define FF_CMP_PSNR 4
1358
#define FF_CMP_BIT  5
1359
#define FF_CMP_RD   6
1360
#define FF_CMP_ZERO 7
1361
#define FF_CMP_VSAD 8
1362
#define FF_CMP_VSSE 9
1363
#define FF_CMP_NSSE 10
1364
#define FF_CMP_W53  11
1365
#define FF_CMP_W97  12
1366
#define FF_CMP_DCTMAX 13
1367
#define FF_CMP_DCT264 14
1368
#define FF_CMP_CHROMA 256
1369

    
1370
    /**
1371
     * ME diamond size & shape.
1372
     * - encoding: set by user.
1373
     * - decoding: unused
1374
     */
1375
    int dia_size;
1376

    
1377
    /**
1378
     * amount of previous MV predictors (2a+1 x 2a+1 square).
1379
     * - encoding: set by user.
1380
     * - decoding: unused
1381
     */
1382
    int last_predictor_count;
1383

    
1384
    /**
1385
     * pre pass for motion estimation.
1386
     * - encoding: set by user.
1387
     * - decoding: unused
1388
     */
1389
    int pre_me;
1390

    
1391
    /**
1392
     * motion estimation pre pass compare function.
1393
     * - encoding: set by user.
1394
     * - decoding: unused
1395
     */
1396
    int me_pre_cmp;
1397

    
1398
    /**
1399
     * ME pre pass diamond size & shape.
1400
     * - encoding: set by user.
1401
     * - decoding: unused
1402
     */
1403
    int pre_dia_size;
1404

    
1405
    /**
1406
     * subpel ME quality.
1407
     * - encoding: set by user.
1408
     * - decoding: unused
1409
     */
1410
    int me_subpel_quality;
1411

    
1412
    /**
1413
     * callback to negotiate the pixelFormat.
1414
     * @param fmt is the list of formats which are supported by the codec,
1415
     * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1416
     * the first is allways the native one
1417
     * @return the choosen format
1418
     * - encoding: unused
1419
     * - decoding: set by user, if not set then the native format will always be choosen
1420
     */
1421
    enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
1422

    
1423
    /**
1424
     * DTG active format information (additionnal aspect ratio
1425
     * information only used in DVB MPEG2 transport streams). 0 if
1426
     * not set.
1427
     *
1428
     * - encoding: unused.
1429
     * - decoding: set by decoder
1430
     */
1431
    int dtg_active_format;
1432
#define FF_DTG_AFD_SAME         8
1433
#define FF_DTG_AFD_4_3          9
1434
#define FF_DTG_AFD_16_9         10
1435
#define FF_DTG_AFD_14_9         11
1436
#define FF_DTG_AFD_4_3_SP_14_9  13
1437
#define FF_DTG_AFD_16_9_SP_14_9 14
1438
#define FF_DTG_AFD_SP_4_3       15
1439

    
1440
    /**
1441
     * Maximum motion estimation search range in subpel units.
1442
     * if 0 then no limit
1443
     *
1444
     * - encoding: set by user.
1445
     * - decoding: unused.
1446
     */
1447
    int me_range;
1448

    
1449
    /**
1450
     * intra quantizer bias.
1451
     * - encoding: set by user.
1452
     * - decoding: unused
1453
     */
1454
    int intra_quant_bias;
1455
#define FF_DEFAULT_QUANT_BIAS 999999
1456

    
1457
    /**
1458
     * inter quantizer bias.
1459
     * - encoding: set by user.
1460
     * - decoding: unused
1461
     */
1462
    int inter_quant_bias;
1463

    
1464
    /**
1465
     * color table ID.
1466
     * - encoding: unused.
1467
     * - decoding: which clrtable should be used for 8bit RGB images
1468
     *             table have to be stored somewhere FIXME
1469
     */
1470
    int color_table_id;
1471

    
1472
    /**
1473
     * internal_buffer count.
1474
     * Don't touch, used by lavc default_get_buffer()
1475
     */
1476
    int internal_buffer_count;
1477

    
1478
    /**
1479
     * internal_buffers.
1480
     * Don't touch, used by lavc default_get_buffer()
1481
     */
1482
    void *internal_buffer;
1483

    
1484
#define FF_LAMBDA_SHIFT 7
1485
#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1486
#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1487
#define FF_LAMBDA_MAX (256*128-1)
1488

    
1489
#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
1490
    /**
1491
     * global quality for codecs which cannot change it per frame.
1492
     * this should be proportional to MPEG1/2/4 qscale.
1493
     * - encoding: set by user.
1494
     * - decoding: unused
1495
     */
1496
    int global_quality;
1497

    
1498
#define FF_CODER_TYPE_VLC   0
1499
#define FF_CODER_TYPE_AC    1
1500
    /**
1501
     * coder type
1502
     * - encoding: set by user.
1503
     * - decoding: unused
1504
     */
1505
    int coder_type;
1506

    
1507
    /**
1508
     * context model
1509
     * - encoding: set by user.
1510
     * - decoding: unused
1511
     */
1512
    int context_model;
1513
#if 0
1514
    /**
1515
     *
1516
     * - encoding: unused
1517
     * - decoding: set by user.
1518
     */
1519
    uint8_t * (*realloc)(struct AVCodecContext *s, uint8_t *buf, int buf_size);
1520
#endif
1521

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

    
1532
    /**
1533
     * XVideo Motion Acceleration
1534
     * - encoding: forbidden
1535
     * - decoding: set by decoder
1536
     */
1537
    int xvmc_acceleration;
1538

    
1539
    /**
1540
     * macroblock decision mode
1541
     * - encoding: set by user.
1542
     * - decoding: unused
1543
     */
1544
    int mb_decision;
1545
#define FF_MB_DECISION_SIMPLE 0        ///< uses mb_cmp
1546
#define FF_MB_DECISION_BITS   1        ///< chooses the one which needs the fewest bits
1547
#define FF_MB_DECISION_RD     2        ///< rate distoration
1548

    
1549
    /**
1550
     * custom intra quantization matrix
1551
     * - encoding: set by user, can be NULL
1552
     * - decoding: set by lavc
1553
     */
1554
    uint16_t *intra_matrix;
1555

    
1556
    /**
1557
     * custom inter quantization matrix
1558
     * - encoding: set by user, can be NULL
1559
     * - decoding: set by lavc
1560
     */
1561
    uint16_t *inter_matrix;
1562

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

    
1571
    /**
1572
     * scene change detection threshold.
1573
     * 0 is default, larger means fewer detected scene changes
1574
     * - encoding: set by user.
1575
     * - decoding: unused
1576
     */
1577
    int scenechange_threshold;
1578

    
1579
    /**
1580
     * minimum lagrange multipler
1581
     * - encoding: set by user.
1582
     * - decoding: unused
1583
     */
1584
    int lmin;
1585

    
1586
    /**
1587
     * maximum lagrange multipler
1588
     * - encoding: set by user.
1589
     * - decoding: unused
1590
     */
1591
    int lmax;
1592

    
1593
    /**
1594
     * Palette control structure
1595
     * - encoding: ??? (no palette-enabled encoder yet)
1596
     * - decoding: set by user.
1597
     */
1598
    struct AVPaletteControl *palctrl;
1599

    
1600
    /**
1601
     * noise reduction strength
1602
     * - encoding: set by user.
1603
     * - decoding: unused
1604
     */
1605
    int noise_reduction;
1606

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

    
1618
    /**
1619
     * number of bits which should be loaded into the rc buffer before decoding starts
1620
     * - encoding: set by user.
1621
     * - decoding: unused
1622
     */
1623
    int rc_initial_buffer_occupancy;
1624

    
1625
    /**
1626
     *
1627
     * - encoding: set by user.
1628
     * - decoding: unused
1629
     */
1630
    int inter_threshold;
1631

    
1632
    /**
1633
     * CODEC_FLAG2_*.
1634
     * - encoding: set by user.
1635
     * - decoding: set by user.
1636
     */
1637
    int flags2;
1638

    
1639
    /**
1640
     * simulates errors in the bitstream to test error concealment.
1641
     * - encoding: set by user.
1642
     * - decoding: unused.
1643
     */
1644
    int error_rate;
1645

    
1646
    /**
1647
     * MP3 antialias algorithm, see FF_AA_* below.
1648
     * - encoding: unused
1649
     * - decoding: set by user
1650
     */
1651
    int antialias_algo;
1652
#define FF_AA_AUTO    0
1653
#define FF_AA_FASTINT 1 //not implemented yet
1654
#define FF_AA_INT     2
1655
#define FF_AA_FLOAT   3
1656
    /**
1657
     * Quantizer noise shaping.
1658
     * - encoding: set by user
1659
     * - decoding: unused
1660
     */
1661
    int quantizer_noise_shaping;
1662

    
1663
    /**
1664
     * Thread count.
1665
     * is used to decide how many independant tasks should be passed to execute()
1666
     * - encoding: set by user
1667
     * - decoding: set by user
1668
     */
1669
    int thread_count;
1670

    
1671
    /**
1672
     * the codec may call this to execute several independant things. it will return only after
1673
     * finishing all tasks, the user may replace this with some multithreaded implementation, the
1674
     * default implementation will execute the parts serially
1675
     * @param count the number of things to execute
1676
     * - encoding: set by lavc, user can override
1677
     * - decoding: set by lavc, user can override
1678
     */
1679
    int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
1680

    
1681
    /**
1682
     * Thread opaque.
1683
     * can be used by execute() to store some per AVCodecContext stuff.
1684
     * - encoding: set by execute()
1685
     * - decoding: set by execute()
1686
     */
1687
    void *thread_opaque;
1688

    
1689
    /**
1690
     * Motion estimation threshold. under which no motion estimation is
1691
     * performed, but instead the user specified motion vectors are used
1692
     *
1693
     * - encoding: set by user
1694
     * - decoding: unused
1695
     */
1696
     int me_threshold;
1697

    
1698
    /**
1699
     * Macroblock threshold. under which the user specified macroblock types will be used
1700
     * - encoding: set by user
1701
     * - decoding: unused
1702
     */
1703
     int mb_threshold;
1704

    
1705
    /**
1706
     * precision of the intra dc coefficient - 8.
1707
     * - encoding: set by user
1708
     * - decoding: unused
1709
     */
1710
     int intra_dc_precision;
1711

    
1712
    /**
1713
     * noise vs. sse weight for the nsse comparsion function.
1714
     * - encoding: set by user
1715
     * - decoding: unused
1716
     */
1717
     int nsse_weight;
1718

    
1719
    /**
1720
     * number of macroblock rows at the top which are skipped.
1721
     * - encoding: unused
1722
     * - decoding: set by user
1723
     */
1724
     int skip_top;
1725

    
1726
    /**
1727
     * number of macroblock rows at the bottom which are skipped.
1728
     * - encoding: unused
1729
     * - decoding: set by user
1730
     */
1731
     int skip_bottom;
1732

    
1733
    /**
1734
     * profile
1735
     * - encoding: set by user
1736
     * - decoding: set by lavc
1737
     */
1738
     int profile;
1739
#define FF_PROFILE_UNKNOWN -99
1740

    
1741
    /**
1742
     * level
1743
     * - encoding: set by user
1744
     * - decoding: set by lavc
1745
     */
1746
     int level;
1747
#define FF_LEVEL_UNKNOWN -99
1748

    
1749
    /**
1750
     * low resolution decoding. 1-> 1/2 size, 2->1/4 size
1751
     * - encoding: unused
1752
     * - decoding: set by user
1753
     */
1754
     int lowres;
1755

    
1756
    /**
1757
     * bitsream width / height. may be different from width/height if lowres
1758
     * or other things are used
1759
     * - encoding: unused
1760
     * - decoding: set by user before init if known, codec should override / dynamically change if needed
1761
     */
1762
    int coded_width, coded_height;
1763

    
1764
    /**
1765
     * frame skip threshold
1766
     * - encoding: set by user
1767
     * - decoding: unused
1768
     */
1769
    int frame_skip_threshold;
1770

    
1771
    /**
1772
     * frame skip factor
1773
     * - encoding: set by user
1774
     * - decoding: unused
1775
     */
1776
    int frame_skip_factor;
1777

    
1778
    /**
1779
     * frame skip exponent
1780
     * - encoding: set by user
1781
     * - decoding: unused
1782
     */
1783
    int frame_skip_exp;
1784

    
1785
    /**
1786
     * frame skip comparission function
1787
     * - encoding: set by user.
1788
     * - decoding: unused
1789
     */
1790
    int frame_skip_cmp;
1791

    
1792
    /**
1793
     * border processing masking. raises the quantizer for mbs on the borders
1794
     * of the picture.
1795
     * - encoding: set by user
1796
     * - decoding: unused
1797
     */
1798
    float border_masking;
1799

    
1800
    /**
1801
     * minimum MB lagrange multipler.
1802
     * - encoding: set by user.
1803
     * - decoding: unused
1804
     */
1805
    int mb_lmin;
1806

    
1807
    /**
1808
     * maximum MB lagrange multipler.
1809
     * - encoding: set by user.
1810
     * - decoding: unused
1811
     */
1812
    int mb_lmax;
1813

    
1814
    /**
1815
     *
1816
     * - encoding: set by user.
1817
     * - decoding: unused
1818
     */
1819
    int me_penalty_compensation;
1820

    
1821
    /**
1822
     *
1823
     * - encoding: unused
1824
     * - decoding: set by user.
1825
     */
1826
    enum AVDiscard skip_loop_filter;
1827

    
1828
    /**
1829
     *
1830
     * - encoding: unused
1831
     * - decoding: set by user.
1832
     */
1833
    enum AVDiscard skip_idct;
1834

    
1835
    /**
1836
     *
1837
     * - encoding: unused
1838
     * - decoding: set by user.
1839
     */
1840
    enum AVDiscard skip_frame;
1841

    
1842
    /**
1843
     *
1844
     * - encoding: set by user.
1845
     * - decoding: unused
1846
     */
1847
    int bidir_refine;
1848

    
1849
    /**
1850
     *
1851
     * - encoding: set by user.
1852
     * - decoding: unused
1853
     */
1854
    int brd_scale;
1855

    
1856
    /**
1857
     * constant rate factor - quality-based VBR - values ~correspond to qps
1858
     * - encoding: set by user.
1859
     * - decoding: unused
1860
     */
1861
    int crf;
1862

    
1863
    /**
1864
     * constant quantization parameter rate control method
1865
     * - encoding: set by user.
1866
     * - decoding: unused
1867
     */
1868
    int cqp;
1869

    
1870
    /**
1871
     * minimum gop size
1872
     * - encoding: set by user.
1873
     * - decoding: unused
1874
     */
1875
    int keyint_min;
1876

    
1877
    /**
1878
     * number of reference frames
1879
     * - encoding: set by user.
1880
     * - decoding: unused
1881
     */
1882
    int refs;
1883

    
1884
    /**
1885
     * chroma qp offset from luma
1886
     * - encoding: set by user.
1887
     * - decoding: unused
1888
     */
1889
    int chromaoffset;
1890

    
1891
    /**
1892
     * influences how often b-frames are used
1893
     * - encoding: set by user.
1894
     * - decoding: unused
1895
     */
1896
    int bframebias;
1897

    
1898
    /**
1899
     * trellis RD quantization
1900
     * - encoding: set by user.
1901
     * - decoding: unused
1902
     */
1903
    int trellis;
1904

    
1905
    /**
1906
     * reduce fluctuations in qp (before curve compression)
1907
     * - encoding: set by user.
1908
     * - decoding: unused
1909
     */
1910
    float complexityblur;
1911

    
1912
    /**
1913
     * in-loop deblocking filter alphac0 parameter
1914
     * alpha is in the range -6...6
1915
     * - encoding: set by user.
1916
     * - decoding: unused
1917
     */
1918
    int deblockalpha;
1919

    
1920
    /**
1921
     * in-loop deblocking filter beta parameter
1922
     * beta is in the range -6...6
1923
     * - encoding: set by user.
1924
     * - decoding: unused
1925
     */
1926
    int deblockbeta;
1927

    
1928
    /**
1929
     * macroblock subpartition sizes to consider - p8x8, p4x4, b8x8, i8x8, i4x4
1930
     * - encoding: set by user.
1931
     * - decoding: unused
1932
     */
1933
    int partitions;
1934
#define X264_PART_I4X4 0x001  /* Analyse i4x4 */
1935
#define X264_PART_I8X8 0x002  /* Analyse i8x8 (requires 8x8 transform) */
1936
#define X264_PART_P8X8 0x010  /* Analyse p16x8, p8x16 and p8x8 */
1937
#define X264_PART_P4X4 0x020  /* Analyse p8x4, p4x8, p4x4 */
1938
#define X264_PART_B8X8 0x100  /* Analyse b16x8, b8x16 and b8x8 */
1939

    
1940
    /**
1941
     * direct mv prediction mode - 0 (none), 1 (spatial), 2 (temporal)
1942
     * - encoding: set by user.
1943
     * - decoding: unused
1944
     */
1945
    int directpred;
1946

    
1947
    /**
1948
     * audio cutoff bandwidth (0 means "automatic") . Currently used only by FAAC
1949
     * - encoding: set by user.
1950
     * - decoding: unused
1951
     */
1952
    int cutoff;
1953

    
1954
    /**
1955
     * multiplied by qscale for each frame and added to scene_change_score
1956
     * - encoding: set by user.
1957
     * - decoding: unused
1958
     */
1959
    int scenechange_factor;
1960

    
1961
    /**
1962
     *
1963
     * note: value depends upon the compare functin used for fullpel ME
1964
     * - encoding: set by user.
1965
     * - decoding: unused
1966
     */
1967
    int mv0_threshold;
1968

    
1969
    /**
1970
     * adjusts sensitivity of b_frame_strategy 1
1971
     * - encoding: set by user.
1972
     * - decoding: unused
1973
     */
1974
    int b_sensitivity;
1975

    
1976
    /**
1977
     * - encoding: set by user.
1978
     * - decoding: unused
1979
     */
1980
    int compression_level;
1981
#define FF_COMPRESSION_DEFAULT -1
1982

    
1983
    /**
1984
     * sets whether to use LPC mode - used by FLAC encoder
1985
     * - encoding: set by user.
1986
     * - decoding: unused.
1987
     */
1988
    int use_lpc;
1989

    
1990
    /**
1991
     * LPC coefficient precision - used by FLAC encoder
1992
     * - encoding: set by user.
1993
     * - decoding: unused.
1994
     */
1995
    int lpc_coeff_precision;
1996

    
1997
    /**
1998
     * - encoding: set by user.
1999
     * - decoding: unused.
2000
     */
2001
    int min_prediction_order;
2002

    
2003
    /**
2004
     * - encoding: set by user.
2005
     * - decoding: unused.
2006
     */
2007
    int max_prediction_order;
2008

    
2009
    /**
2010
     * search method for selecting prediction order
2011
     * - encoding: set by user.
2012
     * - decoding: unused.
2013
     */
2014
    int prediction_order_method;
2015

    
2016
    /**
2017
     * - encoding: set by user.
2018
     * - decoding: unused.
2019
     */
2020
    int min_partition_order;
2021

    
2022
    /**
2023
     * - encoding: set by user.
2024
     * - decoding: unused.
2025
     */
2026
    int max_partition_order;
2027
} AVCodecContext;
2028

    
2029
/**
2030
 * AVCodec.
2031
 */
2032
typedef struct AVCodec {
2033
    const char *name;
2034
    enum CodecType type;
2035
    enum CodecID id;
2036
    int priv_data_size;
2037
    int (*init)(AVCodecContext *);
2038
    int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
2039
    int (*close)(AVCodecContext *);
2040
    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
2041
                  uint8_t *buf, int buf_size);
2042
    int capabilities;
2043
#if LIBAVCODEC_VERSION_INT < ((50<<16)+(0<<8)+0)
2044
    void *dummy; // FIXME remove next time we break binary compatibility
2045
#endif
2046
    struct AVCodec *next;
2047
    void (*flush)(AVCodecContext *);
2048
    const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
2049
    const enum PixelFormat *pix_fmts;       ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
2050
} AVCodec;
2051

    
2052
/**
2053
 * four components are given, that's all.
2054
 * the last component is alpha
2055
 */
2056
typedef struct AVPicture {
2057
    uint8_t *data[4];
2058
    int linesize[4];       ///< number of bytes per line
2059
} AVPicture;
2060

    
2061
/**
2062
 * AVPaletteControl
2063
 * This structure defines a method for communicating palette changes
2064
 * between and demuxer and a decoder.
2065
 */
2066
#define AVPALETTE_SIZE 1024
2067
#define AVPALETTE_COUNT 256
2068
typedef struct AVPaletteControl {
2069

    
2070
    /* demuxer sets this to 1 to indicate the palette has changed;
2071
     * decoder resets to 0 */
2072
    int palette_changed;
2073

    
2074
    /* 4-byte ARGB palette entries, stored in native byte order; note that
2075
     * the individual palette components should be on a 8-bit scale; if
2076
     * the palette data comes from a IBM VGA native format, the component
2077
     * data is probably 6 bits in size and needs to be scaled */
2078
    unsigned int palette[AVPALETTE_COUNT];
2079

    
2080
} AVPaletteControl;
2081

    
2082
typedef struct AVSubtitleRect {
2083
    uint16_t x;
2084
    uint16_t y;
2085
    uint16_t w;
2086
    uint16_t h;
2087
    uint16_t nb_colors;
2088
    int linesize;
2089
    uint32_t *rgba_palette;
2090
    uint8_t *bitmap;
2091
} AVSubtitleRect;
2092

    
2093
typedef struct AVSubtitle {
2094
    uint16_t format; /* 0 = graphics */
2095
    uint32_t start_display_time; /* relative to packet pts, in ms */
2096
    uint32_t end_display_time; /* relative to packet pts, in ms */
2097
    uint32_t num_rects;
2098
    AVSubtitleRect *rects;
2099
} AVSubtitle;
2100

    
2101
extern AVCodec ac3_encoder;
2102
extern AVCodec mp2_encoder;
2103
extern AVCodec mp3lame_encoder;
2104
extern AVCodec oggvorbis_encoder;
2105
extern AVCodec faac_encoder;
2106
extern AVCodec flac_encoder;
2107
extern AVCodec xvid_encoder;
2108
extern AVCodec mpeg1video_encoder;
2109
extern AVCodec mpeg2video_encoder;
2110
extern AVCodec h261_encoder;
2111
extern AVCodec h263_encoder;
2112
extern AVCodec h263p_encoder;
2113
extern AVCodec flv_encoder;
2114
extern AVCodec rv10_encoder;
2115
extern AVCodec rv20_encoder;
2116
extern AVCodec dvvideo_encoder;
2117
extern AVCodec mjpeg_encoder;
2118
extern AVCodec ljpeg_encoder;
2119
extern AVCodec jpegls_encoder;
2120
extern AVCodec png_encoder;
2121
extern AVCodec ppm_encoder;
2122
extern AVCodec pgm_encoder;
2123
extern AVCodec pgmyuv_encoder;
2124
extern AVCodec pbm_encoder;
2125
extern AVCodec pam_encoder;
2126
extern AVCodec mpeg4_encoder;
2127
extern AVCodec msmpeg4v1_encoder;
2128
extern AVCodec msmpeg4v2_encoder;
2129
extern AVCodec msmpeg4v3_encoder;
2130
extern AVCodec wmv1_encoder;
2131
extern AVCodec wmv2_encoder;
2132
extern AVCodec huffyuv_encoder;
2133
extern AVCodec ffvhuff_encoder;
2134
extern AVCodec h264_encoder;
2135
extern AVCodec asv1_encoder;
2136
extern AVCodec asv2_encoder;
2137
extern AVCodec vcr1_encoder;
2138
extern AVCodec ffv1_encoder;
2139
extern AVCodec snow_encoder;
2140
extern AVCodec mdec_encoder;
2141
extern AVCodec zlib_encoder;
2142
extern AVCodec sonic_encoder;
2143
extern AVCodec sonic_ls_encoder;
2144
extern AVCodec svq1_encoder;
2145
extern AVCodec x264_encoder;
2146

    
2147
extern AVCodec h263_decoder;
2148
extern AVCodec h261_decoder;
2149
extern AVCodec mpeg4_decoder;
2150
extern AVCodec msmpeg4v1_decoder;
2151
extern AVCodec msmpeg4v2_decoder;
2152
extern AVCodec msmpeg4v3_decoder;
2153
extern AVCodec wmv1_decoder;
2154
extern AVCodec wmv2_decoder;
2155
extern AVCodec vc1_decoder;
2156
extern AVCodec wmv3_decoder;
2157
extern AVCodec mpeg1video_decoder;
2158
extern AVCodec mpeg2video_decoder;
2159
extern AVCodec mpegvideo_decoder;
2160
extern AVCodec mpeg_xvmc_decoder;
2161
extern AVCodec h263i_decoder;
2162
extern AVCodec flv_decoder;
2163
extern AVCodec rv10_decoder;
2164
extern AVCodec rv20_decoder;
2165
extern AVCodec rv30_decoder;
2166
extern AVCodec rv40_decoder;
2167
extern AVCodec svq1_decoder;
2168
extern AVCodec svq3_decoder;
2169
extern AVCodec dvvideo_decoder;
2170
extern AVCodec wmav1_decoder;
2171
extern AVCodec wmav2_decoder;
2172
extern AVCodec mjpeg_decoder;
2173
extern AVCodec mjpegb_decoder;
2174
extern AVCodec sp5x_decoder;
2175
extern AVCodec png_decoder;
2176
extern AVCodec mp2_decoder;
2177
extern AVCodec mp3_decoder;
2178
extern AVCodec mp3adu_decoder;
2179
extern AVCodec mp3on4_decoder;
2180
extern AVCodec qdm2_decoder;
2181
extern AVCodec cook_decoder;
2182
extern AVCodec truespeech_decoder;
2183
extern AVCodec tta_decoder;
2184
extern AVCodec mace3_decoder;
2185
extern AVCodec mace6_decoder;
2186
extern AVCodec huffyuv_decoder;
2187
extern AVCodec ffvhuff_decoder;
2188
extern AVCodec oggvorbis_decoder;
2189
extern AVCodec cyuv_decoder;
2190
extern AVCodec h264_decoder;
2191
extern AVCodec indeo3_decoder;
2192
extern AVCodec vp3_decoder;
2193
extern AVCodec theora_decoder;
2194
extern AVCodec amr_nb_decoder;
2195
extern AVCodec amr_nb_encoder;
2196
extern AVCodec amr_wb_encoder;
2197
extern AVCodec amr_wb_decoder;
2198
extern AVCodec aac_decoder;
2199
extern AVCodec mpeg4aac_decoder;
2200
extern AVCodec asv1_decoder;
2201
extern AVCodec asv2_decoder;
2202
extern AVCodec vcr1_decoder;
2203
extern AVCodec cljr_decoder;
2204
extern AVCodec ffv1_decoder;
2205
extern AVCodec snow_decoder;
2206
extern AVCodec fourxm_decoder;
2207
extern AVCodec mdec_decoder;
2208
extern AVCodec roq_decoder;
2209
extern AVCodec interplay_video_decoder;
2210
extern AVCodec xan_wc3_decoder;
2211
extern AVCodec rpza_decoder;
2212
extern AVCodec cinepak_decoder;
2213
extern AVCodec msrle_decoder;
2214
extern AVCodec msvideo1_decoder;
2215
extern AVCodec vqa_decoder;
2216
extern AVCodec idcin_decoder;
2217
extern AVCodec eightbps_decoder;
2218
extern AVCodec smc_decoder;
2219
extern AVCodec flic_decoder;
2220
extern AVCodec vmdvideo_decoder;
2221
extern AVCodec vmdaudio_decoder;
2222
extern AVCodec truemotion1_decoder;
2223
extern AVCodec truemotion2_decoder;
2224
extern AVCodec mszh_decoder;
2225
extern AVCodec zlib_decoder;
2226
extern AVCodec ra_144_decoder;
2227
extern AVCodec ra_288_decoder;
2228
extern AVCodec roq_dpcm_decoder;
2229
extern AVCodec interplay_dpcm_decoder;
2230
extern AVCodec xan_dpcm_decoder;
2231
extern AVCodec sol_dpcm_decoder;
2232
extern AVCodec sonic_decoder;
2233
extern AVCodec qtrle_decoder;
2234
extern AVCodec flac_decoder;
2235
extern AVCodec tscc_decoder;
2236
extern AVCodec cscd_decoder;
2237
extern AVCodec nuv_decoder;
2238
extern AVCodec ulti_decoder;
2239
extern AVCodec qdraw_decoder;
2240
extern AVCodec xl_decoder;
2241
extern AVCodec qpeg_decoder;
2242
extern AVCodec shorten_decoder;
2243
extern AVCodec loco_decoder;
2244
extern AVCodec wnv1_decoder;
2245
extern AVCodec aasc_decoder;
2246
extern AVCodec alac_decoder;
2247
extern AVCodec ws_snd1_decoder;
2248
extern AVCodec indeo2_decoder;
2249
extern AVCodec vorbis_decoder;
2250
extern AVCodec fraps_decoder;
2251
extern AVCodec libgsm_encoder;
2252
extern AVCodec libgsm_decoder;
2253
extern AVCodec bmp_decoder;
2254
extern AVCodec mmvideo_decoder;
2255
extern AVCodec zmbv_decoder;
2256
extern AVCodec avs_decoder;
2257
extern AVCodec smacker_decoder;
2258
extern AVCodec smackaud_decoder;
2259
extern AVCodec kmvc_decoder;
2260
extern AVCodec flashsv_decoder;
2261
extern AVCodec cavs_decoder;
2262

    
2263
/* pcm codecs */
2264
#define PCM_CODEC(id, name) \
2265
extern AVCodec name ## _decoder; \
2266
extern AVCodec name ## _encoder
2267

    
2268
PCM_CODEC(CODEC_ID_PCM_S32LE, pcm_s32le);
2269
PCM_CODEC(CODEC_ID_PCM_S32BE, pcm_s32be);
2270
PCM_CODEC(CODEC_ID_PCM_U32LE, pcm_u32le);
2271
PCM_CODEC(CODEC_ID_PCM_U32BE, pcm_u32be);
2272
PCM_CODEC(CODEC_ID_PCM_S24LE, pcm_s24le);
2273
PCM_CODEC(CODEC_ID_PCM_S24BE, pcm_s24be);
2274
PCM_CODEC(CODEC_ID_PCM_U24LE, pcm_u24le);
2275
PCM_CODEC(CODEC_ID_PCM_U24BE, pcm_u24be);
2276
PCM_CODEC(CODEC_ID_PCM_S24DAUD, pcm_s24daud);
2277
PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
2278
PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
2279
PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
2280
PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
2281
PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
2282
PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
2283
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
2284
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
2285

    
2286
/* adpcm codecs */
2287

    
2288
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
2289
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
2290
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
2291
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
2292
PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
2293
PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
2294
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
2295
PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
2296
PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
2297
PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
2298
PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
2299
PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
2300
PCM_CODEC(CODEC_ID_ADPCM_CT, adpcm_ct);
2301
PCM_CODEC(CODEC_ID_ADPCM_SWF, adpcm_swf);
2302
PCM_CODEC(CODEC_ID_ADPCM_YAMAHA, adpcm_yamaha);
2303
PCM_CODEC(CODEC_ID_ADPCM_SBPRO_4, adpcm_sbpro_4);
2304
PCM_CODEC(CODEC_ID_ADPCM_SBPRO_3, adpcm_sbpro_3);
2305
PCM_CODEC(CODEC_ID_ADPCM_SBPRO_2, adpcm_sbpro_2);
2306

    
2307
#undef PCM_CODEC
2308

    
2309
/* dummy raw video codec */
2310
extern AVCodec rawvideo_encoder;
2311
extern AVCodec rawvideo_decoder;
2312

    
2313
/* the following codecs use external GPL libs */
2314
extern AVCodec ac3_decoder;
2315
extern AVCodec dts_decoder;
2316

    
2317
/* subtitles */
2318
extern AVCodec dvdsub_encoder;
2319
extern AVCodec dvdsub_decoder;
2320
extern AVCodec dvbsub_encoder;
2321
extern AVCodec dvbsub_decoder;
2322

    
2323
/* resample.c */
2324

    
2325
struct ReSampleContext;
2326
struct AVResampleContext;
2327

    
2328
typedef struct ReSampleContext ReSampleContext;
2329

    
2330
ReSampleContext *audio_resample_init(int output_channels, int input_channels,
2331
                                     int output_rate, int input_rate);
2332
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
2333
void audio_resample_close(ReSampleContext *s);
2334

    
2335
struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
2336
int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
2337
void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
2338
void av_resample_close(struct AVResampleContext *c);
2339

    
2340
/* YUV420 format is assumed ! */
2341

    
2342
struct ImgReSampleContext;
2343

    
2344
typedef struct ImgReSampleContext ImgReSampleContext;
2345

    
2346
ImgReSampleContext *img_resample_init(int output_width, int output_height,
2347
                                      int input_width, int input_height);
2348

    
2349
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
2350
                                      int iwidth, int iheight,
2351
                                      int topBand, int bottomBand,
2352
                                      int leftBand, int rightBand,
2353
                                      int padtop, int padbottom,
2354
                                      int padleft, int padright);
2355

    
2356

    
2357
void img_resample(ImgReSampleContext *s,
2358
                  AVPicture *output, const AVPicture *input);
2359

    
2360
void img_resample_close(ImgReSampleContext *s);
2361

    
2362
/**
2363
 * Allocate memory for a picture.  Call avpicture_free to free it.
2364
 *
2365
 * @param picture the picture to be filled in.
2366
 * @param pix_fmt the format of the picture.
2367
 * @param width the width of the picture.
2368
 * @param height the height of the picture.
2369
 * @return 0 if successful, -1 if not.
2370
 */
2371
int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
2372

    
2373
/* Free a picture previously allocated by avpicture_alloc. */
2374
void avpicture_free(AVPicture *picture);
2375

    
2376
int avpicture_fill(AVPicture *picture, uint8_t *ptr,
2377
                   int pix_fmt, int width, int height);
2378
int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
2379
                     unsigned char *dest, int dest_size);
2380
int avpicture_get_size(int pix_fmt, int width, int height);
2381
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
2382
const char *avcodec_get_pix_fmt_name(int pix_fmt);
2383
void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
2384
enum PixelFormat avcodec_get_pix_fmt(const char* name);
2385
unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat p);
2386

    
2387
#define FF_LOSS_RESOLUTION  0x0001 /* loss due to resolution change */
2388
#define FF_LOSS_DEPTH       0x0002 /* loss due to color depth change */
2389
#define FF_LOSS_COLORSPACE  0x0004 /* loss due to color space conversion */
2390
#define FF_LOSS_ALPHA       0x0008 /* loss of alpha bits */
2391
#define FF_LOSS_COLORQUANT  0x0010 /* loss due to color quantization */
2392
#define FF_LOSS_CHROMA      0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
2393

    
2394
int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
2395
                             int has_alpha);
2396
int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
2397
                              int has_alpha, int *loss_ptr);
2398

    
2399
#define FF_ALPHA_TRANSP       0x0001 /* image has some totally transparent pixels */
2400
#define FF_ALPHA_SEMI_TRANSP  0x0002 /* image has some transparent pixels */
2401
int img_get_alpha_info(const AVPicture *src,
2402
                       int pix_fmt, int width, int height);
2403

    
2404
/* convert among pixel formats */
2405
int img_convert(AVPicture *dst, int dst_pix_fmt,
2406
                const AVPicture *src, int pix_fmt,
2407
                int width, int height);
2408

    
2409
/* deinterlace a picture */
2410
int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
2411
                          int pix_fmt, int width, int height);
2412

    
2413
/* external high level API */
2414

    
2415
extern AVCodec *first_avcodec;
2416

    
2417
/* returns LIBAVCODEC_VERSION_INT constant */
2418
unsigned avcodec_version(void);
2419
/* returns LIBAVCODEC_BUILD constant */
2420
unsigned avcodec_build(void);
2421
void avcodec_init(void);
2422

    
2423
void register_avcodec(AVCodec *format);
2424
AVCodec *avcodec_find_encoder(enum CodecID id);
2425
AVCodec *avcodec_find_encoder_by_name(const char *name);
2426
AVCodec *avcodec_find_decoder(enum CodecID id);
2427
AVCodec *avcodec_find_decoder_by_name(const char *name);
2428
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
2429

    
2430
void avcodec_get_context_defaults(AVCodecContext *s);
2431
AVCodecContext *avcodec_alloc_context(void);
2432
void avcodec_get_frame_defaults(AVFrame *pic);
2433
AVFrame *avcodec_alloc_frame(void);
2434

    
2435
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
2436
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
2437
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
2438
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
2439
int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h);
2440
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
2441

    
2442
int avcodec_thread_init(AVCodecContext *s, int thread_count);
2443
void avcodec_thread_free(AVCodecContext *s);
2444
int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2445
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2446
//FIXME func typedef
2447

    
2448
/**
2449
 * opens / inits the AVCodecContext.
2450
 * not thread save!
2451
 */
2452
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
2453

    
2454
int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
2455
                         int *frame_size_ptr,
2456
                         uint8_t *buf, int buf_size);
2457
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
2458
                         int *got_picture_ptr,
2459
                         uint8_t *buf, int buf_size);
2460
int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
2461
                            int *got_sub_ptr,
2462
                            const uint8_t *buf, int buf_size);
2463
int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata,
2464
                        int *data_size_ptr,
2465
                        uint8_t *buf, int buf_size);
2466
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2467
                         const short *samples);
2468
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2469
                         const AVFrame *pict);
2470
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2471
                            const AVSubtitle *sub);
2472

    
2473
int avcodec_close(AVCodecContext *avctx);
2474

    
2475
void avcodec_register_all(void);
2476

    
2477
void avcodec_flush_buffers(AVCodecContext *avctx);
2478

    
2479
void avcodec_default_free_buffers(AVCodecContext *s);
2480

    
2481
/* misc usefull functions */
2482

    
2483
/**
2484
 * returns a single letter to describe the picture type
2485
 */
2486
char av_get_pict_type_char(int pict_type);
2487

    
2488
/**
2489
 * returns codec bits per sample
2490
 */
2491
int av_get_bits_per_sample(enum CodecID codec_id);
2492

    
2493
/* frame parsing */
2494
typedef struct AVCodecParserContext {
2495
    void *priv_data;
2496
    struct AVCodecParser *parser;
2497
    int64_t frame_offset; /* offset of the current frame */
2498
    int64_t cur_offset; /* current offset
2499
                           (incremented by each av_parser_parse()) */
2500
    int64_t last_frame_offset; /* offset of the last frame */
2501
    /* video info */
2502
    int pict_type; /* XXX: put it back in AVCodecContext */
2503
    int repeat_pict; /* XXX: put it back in AVCodecContext */
2504
    int64_t pts;     /* pts of the current frame */
2505
    int64_t dts;     /* dts of the current frame */
2506

    
2507
    /* private data */
2508
    int64_t last_pts;
2509
    int64_t last_dts;
2510
    int fetch_timestamp;
2511

    
2512
#define AV_PARSER_PTS_NB 4
2513
    int cur_frame_start_index;
2514
    int64_t cur_frame_offset[AV_PARSER_PTS_NB];
2515
    int64_t cur_frame_pts[AV_PARSER_PTS_NB];
2516
    int64_t cur_frame_dts[AV_PARSER_PTS_NB];
2517

    
2518
    int flags;
2519
#define PARSER_FLAG_COMPLETE_FRAMES           0x0001
2520
} AVCodecParserContext;
2521

    
2522
typedef struct AVCodecParser {
2523
    int codec_ids[5]; /* several codec IDs are permitted */
2524
    int priv_data_size;
2525
    int (*parser_init)(AVCodecParserContext *s);
2526
    int (*parser_parse)(AVCodecParserContext *s,
2527
                        AVCodecContext *avctx,
2528
                        uint8_t **poutbuf, int *poutbuf_size,
2529
                        const uint8_t *buf, int buf_size);
2530
    void (*parser_close)(AVCodecParserContext *s);
2531
    int (*split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size);
2532
    struct AVCodecParser *next;
2533
} AVCodecParser;
2534

    
2535
extern AVCodecParser *av_first_parser;
2536

    
2537
void av_register_codec_parser(AVCodecParser *parser);
2538
AVCodecParserContext *av_parser_init(int codec_id);
2539
int av_parser_parse(AVCodecParserContext *s,
2540
                    AVCodecContext *avctx,
2541
                    uint8_t **poutbuf, int *poutbuf_size,
2542
                    const uint8_t *buf, int buf_size,
2543
                    int64_t pts, int64_t dts);
2544
int av_parser_change(AVCodecParserContext *s,
2545
                     AVCodecContext *avctx,
2546
                     uint8_t **poutbuf, int *poutbuf_size,
2547
                     const uint8_t *buf, int buf_size, int keyframe);
2548
void av_parser_close(AVCodecParserContext *s);
2549

    
2550
extern AVCodecParser mpegvideo_parser;
2551
extern AVCodecParser mpeg4video_parser;
2552
extern AVCodecParser cavsvideo_parser;
2553
extern AVCodecParser h261_parser;
2554
extern AVCodecParser h263_parser;
2555
extern AVCodecParser h264_parser;
2556
extern AVCodecParser mjpeg_parser;
2557
extern AVCodecParser pnm_parser;
2558
extern AVCodecParser mpegaudio_parser;
2559
extern AVCodecParser ac3_parser;
2560
extern AVCodecParser dvdsub_parser;
2561
extern AVCodecParser dvbsub_parser;
2562
extern AVCodecParser aac_parser;
2563

    
2564

    
2565
typedef struct AVBitStreamFilterContext {
2566
    void *priv_data;
2567
    struct AVBitStreamFilter *filter;
2568
    AVCodecParserContext *parser;
2569
    struct AVBitStreamFilterContext *next;
2570
} AVBitStreamFilterContext;
2571

    
2572

    
2573
typedef struct AVBitStreamFilter {
2574
    const char *name;
2575
    int priv_data_size;
2576
    int (*filter)(AVBitStreamFilterContext *bsfc,
2577
                  AVCodecContext *avctx, const char *args,
2578
                  uint8_t **poutbuf, int *poutbuf_size,
2579
                  const uint8_t *buf, int buf_size, int keyframe);
2580
    struct AVBitStreamFilter *next;
2581
} AVBitStreamFilter;
2582

    
2583
extern AVBitStreamFilter *av_first_bitstream_filter;
2584

    
2585
void av_register_bitstream_filter(AVBitStreamFilter *bsf);
2586
AVBitStreamFilterContext *av_bitstream_filter_init(const char *name);
2587
int av_bitstream_filter_filter(AVBitStreamFilterContext *bsfc,
2588
                               AVCodecContext *avctx, const char *args,
2589
                               uint8_t **poutbuf, int *poutbuf_size,
2590
                               const uint8_t *buf, int buf_size, int keyframe);
2591
void av_bitstream_filter_close(AVBitStreamFilterContext *bsf);
2592

    
2593
extern AVBitStreamFilter dump_extradata_bsf;
2594
extern AVBitStreamFilter remove_extradata_bsf;
2595
extern AVBitStreamFilter noise_bsf;
2596

    
2597

    
2598
/* memory */
2599
void *av_mallocz(unsigned int size);
2600
char *av_strdup(const char *s);
2601
void av_freep(void *ptr);
2602
void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
2603
/* for static data only */
2604
/* call av_free_static to release all staticaly allocated tables */
2605
void av_free_static(void);
2606
void *av_mallocz_static(unsigned int size);
2607
void *av_realloc_static(void *ptr, unsigned int size);
2608

    
2609
void img_copy(AVPicture *dst, const AVPicture *src,
2610
              int pix_fmt, int width, int height);
2611

    
2612
int img_crop(AVPicture *dst, const AVPicture *src,
2613
             int pix_fmt, int top_band, int left_band);
2614

    
2615
int img_pad(AVPicture *dst, const AVPicture *src, int height, int width, int pix_fmt,
2616
            int padtop, int padbottom, int padleft, int padright, int *color);
2617

    
2618
/* endian macros */
2619
#if !defined(BE_16) || !defined(BE_32) || !defined(LE_16) || !defined(LE_32)
2620
#define BE_16(x)  ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
2621
#define BE_32(x)  ((((uint8_t*)(x))[0] << 24) | \
2622
                   (((uint8_t*)(x))[1] << 16) | \
2623
                   (((uint8_t*)(x))[2] << 8) | \
2624
                    ((uint8_t*)(x))[3])
2625
#define LE_16(x)  ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
2626
#define LE_32(x)  ((((uint8_t*)(x))[3] << 24) | \
2627
                   (((uint8_t*)(x))[2] << 16) | \
2628
                   (((uint8_t*)(x))[1] << 8) | \
2629
                    ((uint8_t*)(x))[0])
2630
#endif
2631

    
2632
extern unsigned int av_xiphlacing(unsigned char *s, unsigned int v);
2633

    
2634
#ifdef __cplusplus
2635
}
2636
#endif
2637

    
2638
#endif /* AVCODEC_H */