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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)+(9<<8)+0)
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#define LIBAVCODEC_VERSION      51.9.0
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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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    /* 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_OGGTHEORA= 0x16000,
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    /* subtitle codecs */
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    CODEC_ID_DVD_SUBTITLE= 0x17000,
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    CODEC_ID_DVB_SUBTITLE,
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    CODEC_ID_MPEG2TS= 0x20000, /* _FAKE_ codec to indicate a raw MPEG2 transport
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                         stream (only used by libavformat) */
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};
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/* CODEC_ID_MP3LAME is absolete */
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#define CODEC_ID_MP3LAME CODEC_ID_MP3
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enum CodecType {
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    CODEC_TYPE_UNKNOWN = -1,
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    CODEC_TYPE_VIDEO,
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    CODEC_TYPE_AUDIO,
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    CODEC_TYPE_DATA,
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    CODEC_TYPE_SUBTITLE,
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};
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/* 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.
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 */
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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.
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 * this specifies the area which should be displayed. Note there may be multiple such areas for one frame
398
 */
399
typedef struct AVPanScan{
400
    /**
401
     * id.
402
     * - encoding: set by user.
403
     * - decoding: set by lavc
404
     */
405
    int id;
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407
    /**
408
     * width and height in 1/16 pel
409
     * - encoding: set by user.
410
     * - decoding: set by lavc
411
     */
412
    int width;
413
    int height;
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415
    /**
416
     * position of the top left corner in 1/16 pel for up to 3 fields/frames.
417
     * - encoding: set by user.
418
     * - decoding: set by lavc
419
     */
420
    int16_t position[3][2];
421
}AVPanScan;
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423
#define FF_COMMON_FRAME \
424
    /**\
425
     * pointer to the picture planes.\
426
     * this might be different from the first allocated byte\
427
     * - encoding: \
428
     * - decoding: \
429
     */\
430
    uint8_t *data[4];\
431
    int linesize[4];\
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    /**\
433
     * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
434
     * this isn't used by lavc unless the default get/release_buffer() is used\
435
     * - encoding: \
436
     * - decoding: \
437
     */\
438
    uint8_t *base[4];\
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    /**\
440
     * 1 -> keyframe, 0-> not\
441
     * - encoding: set by lavc\
442
     * - decoding: set by lavc\
443
     */\
444
    int key_frame;\
445
\
446
    /**\
447
     * picture type of the frame, see ?_TYPE below.\
448
     * - encoding: set by lavc for coded_picture (and set by user for input)\
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     * - decoding: set by lavc\
450
     */\
451
    int pict_type;\
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\
453
    /**\
454
     * presentation timestamp in time_base units (time when frame should be shown to user)\
455
     * if AV_NOPTS_VALUE then frame_rate = 1/time_base will be assumed\
456
     * - encoding: MUST be set by user\
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     * - decoding: set by lavc\
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     */\
459
    int64_t pts;\
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\
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    /**\
462
     * picture number in bitstream order.\
463
     * - encoding: set by\
464
     * - decoding: set by lavc\
465
     */\
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    int coded_picture_number;\
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    /**\
468
     * picture number in display order.\
469
     * - encoding: set by\
470
     * - decoding: set by lavc\
471
     */\
472
    int display_picture_number;\
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\
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    /**\
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     * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
476
     * - encoding: set by lavc for coded_picture (and set by user for input)\
477
     * - decoding: set by lavc\
478
     */\
479
    int quality; \
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\
481
    /**\
482
     * buffer age (1->was last buffer and dint change, 2->..., ...).\
483
     * set to INT_MAX if the buffer has not been used yet \
484
     * - encoding: unused\
485
     * - decoding: MUST be set by get_buffer()\
486
     */\
487
    int age;\
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\
489
    /**\
490
     * is this picture used as reference\
491
     * - encoding: unused\
492
     * - decoding: set by lavc (before get_buffer() call))\
493
     */\
494
    int reference;\
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\
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    /**\
497
     * QP table\
498
     * - encoding: unused\
499
     * - decoding: set by lavc\
500
     */\
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    int8_t *qscale_table;\
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    /**\
503
     * QP store stride\
504
     * - encoding: unused\
505
     * - decoding: set by lavc\
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     */\
507
    int qstride;\
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\
509
    /**\
510
     * mbskip_table[mb]>=1 if MB didnt change\
511
     * stride= mb_width = (width+15)>>4\
512
     * - encoding: unused\
513
     * - decoding: set by lavc\
514
     */\
515
    uint8_t *mbskip_table;\
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\
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    /**\
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     * Motion vector table.\
519
     * @code\
520
     * example:\
521
     * int mv_sample_log2= 4 - motion_subsample_log2;\
522
     * int mb_width= (width+15)>>4;\
523
     * int mv_stride= (mb_width << mv_sample_log2) + 1;\
524
     * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y];\
525
     * @endcode\
526
     * - encoding: set by user\
527
     * - decoding: set by lavc\
528
     */\
529
    int16_t (*motion_val[2])[2];\
530
\
531
    /**\
532
     * Macroblock type table\
533
     * mb_type_base + mb_width + 2\
534
     * - encoding: set by user\
535
     * - decoding: set by lavc\
536
     */\
537
    uint32_t *mb_type;\
538
\
539
    /**\
540
     * log2 of the size of the block which a single vector in motion_val represents: \
541
     * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2)\
542
     * - encoding: unused\
543
     * - decoding: set by lavc\
544
     */\
545
    uint8_t motion_subsample_log2;\
546
\
547
    /**\
548
     * for some private data of the user\
549
     * - encoding: unused\
550
     * - decoding: set by user\
551
     */\
552
    void *opaque;\
553
\
554
    /**\
555
     * error\
556
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
557
     * - decoding: unused\
558
     */\
559
    uint64_t error[4];\
560
\
561
    /**\
562
     * type of the buffer (to keep track of who has to dealloc data[*])\
563
     * - encoding: set by the one who allocs it\
564
     * - decoding: set by the one who allocs it\
565
     * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
566
     */\
567
    int type;\
568
    \
569
    /**\
570
     * when decoding, this signal how much the picture must be delayed.\
571
     * extra_delay = repeat_pict / (2*fps)\
572
     * - encoding: unused\
573
     * - decoding: set by lavc\
574
     */\
575
    int repeat_pict;\
576
    \
577
    /**\
578
     * \
579
     */\
580
    int qscale_type;\
581
    \
582
    /**\
583
     * The content of the picture is interlaced.\
584
     * - encoding: set by user\
585
     * - decoding: set by lavc (default 0)\
586
     */\
587
    int interlaced_frame;\
588
    \
589
    /**\
590
     * if the content is interlaced, is top field displayed first.\
591
     * - encoding: set by user\
592
     * - decoding: set by lavc\
593
     */\
594
    int top_field_first;\
595
    \
596
    /**\
597
     * Pan scan.\
598
     * - encoding: set by user\
599
     * - decoding: set by lavc\
600
     */\
601
    AVPanScan *pan_scan;\
602
    \
603
    /**\
604
     * tell user application that palette has changed from previous frame.\
605
     * - encoding: ??? (no palette-enabled encoder yet)\
606
     * - decoding: set by lavc (default 0)\
607
     */\
608
    int palette_has_changed;\
609
    \
610
    /**\
611
     * Codec suggestion on buffer type if != 0\
612
     * - encoding: unused\
613
     * - decoding: set by lavc (before get_buffer() call))\
614
     */\
615
    int buffer_hints;\
616
\
617
    /**\
618
     * DCT coeffitients\
619
     * - encoding: unused\
620
     * - decoding: set by lavc\
621
     */\
622
    short *dct_coeff;\
623
\
624
    /**\
625
     * Motion referece frame index\
626
     * - encoding: set by user\
627
     * - decoding: set by lavc\
628
     */\
629
    int8_t *ref_index[2];
630

    
631
#define FF_QSCALE_TYPE_MPEG1 0
632
#define FF_QSCALE_TYPE_MPEG2 1
633
#define FF_QSCALE_TYPE_H264  2
634

    
635
#define FF_BUFFER_TYPE_INTERNAL 1
636
#define FF_BUFFER_TYPE_USER     2 ///< Direct rendering buffers (image is (de)allocated by user)
637
#define FF_BUFFER_TYPE_SHARED   4 ///< buffer from somewhere else, don't dealloc image (data/base), all other tables are not shared
638
#define FF_BUFFER_TYPE_COPY     8 ///< just a (modified) copy of some other buffer, don't dealloc anything
639

    
640

    
641
#define FF_I_TYPE 1 // Intra
642
#define FF_P_TYPE 2 // Predicted
643
#define FF_B_TYPE 3 // Bi-dir predicted
644
#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
645
#define FF_SI_TYPE 5
646
#define FF_SP_TYPE 6
647

    
648
#define FF_BUFFER_HINTS_VALID    0x01 // Buffer hints value is meaningful (if 0 ignore)
649
#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
650
#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
651
#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
652

    
653
/**
654
 * Audio Video Frame.
655
 */
656
typedef struct AVFrame {
657
    FF_COMMON_FRAME
658
} AVFrame;
659

    
660
#define DEFAULT_FRAME_RATE_BASE 1001000
661

    
662
/**
663
 * Used by av_log
664
 */
665
typedef struct AVCLASS AVClass;
666
struct AVCLASS {
667
    const char* class_name;
668
    const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext
669
                                        or AVFormatContext, which begin with an AVClass.
670
                                        Needed because av_log is in libavcodec and has no visibility
671
                                        of AVIn/OutputFormat */
672
    struct AVOption *option;
673
};
674

    
675
/**
676
 * main external api structure.
677
 */
678
typedef struct AVCodecContext {
679
    /**
680
     * Info on struct for av_log
681
     * - set by avcodec_alloc_context
682
     */
683
    AVClass *av_class;
684
    /**
685
     * the average bitrate.
686
     * - encoding: set by user. unused for constant quantizer encoding
687
     * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream
688
     */
689
    int bit_rate;
690

    
691
    /**
692
     * number of bits the bitstream is allowed to diverge from the reference.
693
     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
694
     * - encoding: set by user. unused for constant quantizer encoding
695
     * - decoding: unused
696
     */
697
    int bit_rate_tolerance;
698

    
699
    /**
700
     * CODEC_FLAG_*.
701
     * - encoding: set by user.
702
     * - decoding: set by user.
703
     */
704
    int flags;
705

    
706
    /**
707
     * some codecs needs additionnal format info. It is stored here
708
     * - encoding: set by user.
709
     * - decoding: set by lavc. (FIXME is this ok?)
710
     */
711
    int sub_id;
712

    
713
    /**
714
     * motion estimation algorithm used for video coding.
715
     * 1 (zero), 2 (full), 3 (log), 4 (phods), 5 (epzs), 6 (x1), 7 (hex),
716
     * 8 (umh), 9 (iter) [7, 8 are x264 specific, 9 is snow specific]
717
     * - encoding: MUST be set by user.
718
     * - decoding: unused
719
     */
720
    int me_method;
721

    
722
    /**
723
     * some codecs need / can use extra-data like huffman tables.
724
     * mjpeg: huffman tables
725
     * rv10: additional flags
726
     * mpeg4: global headers (they can be in the bitstream or here)
727
     * the allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
728
     * then extradata_size to avoid prolems if its read with the bitstream reader
729
     * the bytewise contents of extradata must not depend on the architecture or cpu endianness
730
     * - encoding: set/allocated/freed by lavc.
731
     * - decoding: set/allocated/freed by user.
732
     */
733
    void *extradata;
734
    int extradata_size;
735

    
736
    /**
737
     * this is the fundamental unit of time (in seconds) in terms
738
     * of which frame timestamps are represented. for fixed-fps content,
739
     * timebase should be 1/framerate and timestamp increments should be
740
     * identically 1.
741
     * - encoding: MUST be set by user
742
     * - decoding: set by lavc.
743
     */
744
    AVRational time_base;
745

    
746
    /* video only */
747
    /**
748
     * picture width / height.
749
     * - encoding: MUST be set by user.
750
     * - decoding: set by lavc.
751
     * Note, for compatibility its possible to set this instead of
752
     * coded_width/height before decoding
753
     */
754
    int width, height;
755

    
756
#define FF_ASPECT_EXTENDED 15
757

    
758
    /**
759
     * the number of pictures in a group of pitures, or 0 for intra_only.
760
     * - encoding: set by user.
761
     * - decoding: unused
762
     */
763
    int gop_size;
764

    
765
    /**
766
     * pixel format, see PIX_FMT_xxx.
767
     * - encoding: set by user.
768
     * - decoding: set by lavc.
769
     */
770
    enum PixelFormat pix_fmt;
771

    
772
    /**
773
     * Frame rate emulation. If not zero lower layer (i.e. format handler)
774
     * has to read frames at native frame rate.
775
     * - encoding: set by user.
776
     * - decoding: unused.
777
     */
778
    int rate_emu;
779

    
780
    /**
781
     * if non NULL, 'draw_horiz_band' is called by the libavcodec
782
     * decoder to draw an horizontal band. It improve cache usage. Not
783
     * all codecs can do that. You must check the codec capabilities
784
     * before
785
     * - encoding: unused
786
     * - decoding: set by user.
787
     * @param height the height of the slice
788
     * @param y the y position of the slice
789
     * @param type 1->top field, 2->bottom field, 3->frame
790
     * @param offset offset into the AVFrame.data from which the slice should be read
791
     */
792
    void (*draw_horiz_band)(struct AVCodecContext *s,
793
                            const AVFrame *src, int offset[4],
794
                            int y, int type, int height);
795

    
796
    /* audio only */
797
    int sample_rate; ///< samples per sec
798
    int channels;
799

    
800
    /**
801
     * audio sample format.
802
     * - encoding: set by user.
803
     * - decoding: set by lavc.
804
     */
805
    enum SampleFormat sample_fmt;  ///< sample format, currenly unused
806

    
807
    /* the following data should not be initialized */
808
    /**
809
     * samples per packet. initialized when calling 'init'
810
     */
811
    int frame_size;
812
    int frame_number;   ///< audio or video frame number
813
    int real_pict_num;  ///< returns the real picture number of previous encoded frame
814

    
815
    /**
816
     * number of frames the decoded output will be delayed relative to
817
     * the encoded input.
818
     * - encoding: set by lavc.
819
     * - decoding: unused
820
     */
821
    int delay;
822

    
823
    /* - encoding parameters */
824
    float qcompress;  ///< amount of qscale change between easy & hard scenes (0.0-1.0)
825
    float qblur;      ///< amount of qscale smoothing over time (0.0-1.0)
826

    
827
    /**
828
     * minimum quantizer.
829
     * - encoding: set by user.
830
     * - decoding: unused
831
     */
832
    int qmin;
833

    
834
    /**
835
     * maximum quantizer.
836
     * - encoding: set by user.
837
     * - decoding: unused
838
     */
839
    int qmax;
840

    
841
    /**
842
     * maximum quantizer difference etween frames.
843
     * - encoding: set by user.
844
     * - decoding: unused
845
     */
846
    int max_qdiff;
847

    
848
    /**
849
     * maximum number of b frames between non b frames.
850
     * note: the output will be delayed by max_b_frames+1 relative to the input
851
     * - encoding: set by user.
852
     * - decoding: unused
853
     */
854
    int max_b_frames;
855

    
856
    /**
857
     * qscale factor between ip and b frames.
858
     * - encoding: set by user.
859
     * - decoding: unused
860
     */
861
    float b_quant_factor;
862

    
863
    /** obsolete FIXME remove */
864
    int rc_strategy;
865
#define FF_RC_STRATEGY_XVID 1
866

    
867
    int b_frame_strategy;
868

    
869
    /**
870
     * hurry up amount.
871
     * deprecated in favor of skip_idct and skip_frame
872
     * - encoding: unused
873
     * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
874
     */
875
    int hurry_up;
876

    
877
    struct AVCodec *codec;
878

    
879
    void *priv_data;
880

    
881
    /* unused, FIXME remove*/
882
    int rtp_mode;
883

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

    
891

    
892
    /* The RTP callback: This function is called   */
893
    /* every time the encoder has a packet to send */
894
    /* Depends on the encoder if the data starts   */
895
    /* with a Start Code (it should) H.263 does.   */
896
    /* mb_nb contains the number of macroblocks    */
897
    /* encoded in the RTP payload                  */
898
    void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb);
899

    
900
    /* statistics, used for 2-pass encoding */
901
    int mv_bits;
902
    int header_bits;
903
    int i_tex_bits;
904
    int p_tex_bits;
905
    int i_count;
906
    int p_count;
907
    int skip_count;
908
    int misc_bits;
909

    
910
    /**
911
     * number of bits used for the previously encoded frame.
912
     * - encoding: set by lavc
913
     * - decoding: unused
914
     */
915
    int frame_bits;
916

    
917
    /**
918
     * private data of the user, can be used to carry app specific stuff.
919
     * - encoding: set by user
920
     * - decoding: set by user
921
     */
922
    void *opaque;
923

    
924
    char codec_name[32];
925
    enum CodecType codec_type; /* see CODEC_TYPE_xxx */
926
    enum CodecID codec_id; /* see CODEC_ID_xxx */
927

    
928
    /**
929
     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
930
     * this is used to workaround some encoder bugs
931
     * - encoding: set by user, if not then the default based on codec_id will be used
932
     * - decoding: set by user, will be converted to upper case by lavc during init
933
     */
934
    unsigned int codec_tag;
935

    
936
    /**
937
     * workaround bugs in encoders which sometimes cannot be detected automatically.
938
     * - encoding: set by user
939
     * - decoding: set by user
940
     */
941
    int workaround_bugs;
942
#define FF_BUG_AUTODETECT       1  ///< autodetection
943
#define FF_BUG_OLD_MSMPEG4      2
944
#define FF_BUG_XVID_ILACE       4
945
#define FF_BUG_UMP4             8
946
#define FF_BUG_NO_PADDING       16
947
#define FF_BUG_AMV              32
948
#define FF_BUG_AC_VLC           0  ///< will be removed, libavcodec can now handle these non compliant files by default
949
#define FF_BUG_QPEL_CHROMA      64
950
#define FF_BUG_STD_QPEL         128
951
#define FF_BUG_QPEL_CHROMA2     256
952
#define FF_BUG_DIRECT_BLOCKSIZE 512
953
#define FF_BUG_EDGE             1024
954
#define FF_BUG_HPEL_CHROMA      2048
955
#define FF_BUG_DC_CLIP          4096
956
#define FF_BUG_MS               8192 ///< workaround various bugs in microsofts broken decoders
957
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
958

    
959
    /**
960
     * luma single coeff elimination threshold.
961
     * - encoding: set by user
962
     * - decoding: unused
963
     */
964
    int luma_elim_threshold;
965

    
966
    /**
967
     * chroma single coeff elimination threshold.
968
     * - encoding: set by user
969
     * - decoding: unused
970
     */
971
    int chroma_elim_threshold;
972

    
973
    /**
974
     * strictly follow the std (MPEG4, ...).
975
     * - encoding: set by user
976
     * - decoding: unused
977
     */
978
    int strict_std_compliance;
979
#define FF_COMPLIANCE_VERY_STRICT   2 ///< strictly conform to a older more strict version of the spec or reference software
980
#define FF_COMPLIANCE_STRICT        1 ///< strictly conform to all the things in the spec no matter what consequences
981
#define FF_COMPLIANCE_NORMAL        0
982
#define FF_COMPLIANCE_INOFFICIAL   -1 ///< allow inofficial extensions
983
#define FF_COMPLIANCE_EXPERIMENTAL -2 ///< allow non standarized experimental things
984

    
985
    /**
986
     * qscale offset between ip and b frames.
987
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
988
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
989
     * - encoding: set by user.
990
     * - decoding: unused
991
     */
992
    float b_quant_offset;
993

    
994
    /**
995
     * error resilience higher values will detect more errors but may missdetect
996
     * some more or less valid parts as errors.
997
     * - encoding: unused
998
     * - decoding: set by user
999
     */
1000
    int error_resilience;
1001
#define FF_ER_CAREFUL         1
1002
#define FF_ER_COMPLIANT       2
1003
#define FF_ER_AGGRESSIVE      3
1004
#define FF_ER_VERY_AGGRESSIVE 4
1005

    
1006
    /**
1007
     * called at the beginning of each frame to get a buffer for it.
1008
     * if pic.reference is set then the frame will be read later by lavc
1009
     * avcodec_align_dimensions() should be used to find the required width and
1010
     * height, as they normally need to be rounded up to the next multiple of 16
1011
     * - encoding: unused
1012
     * - decoding: set by lavc, user can override
1013
     */
1014
    int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
1015

    
1016
    /**
1017
     * called to release buffers which where allocated with get_buffer.
1018
     * a released buffer can be reused in get_buffer()
1019
     * pic.data[*] must be set to NULL
1020
     * - encoding: unused
1021
     * - decoding: set by lavc, user can override
1022
     */
1023
    void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
1024

    
1025
    /**
1026
     * if 1 the stream has a 1 frame delay during decoding.
1027
     * - encoding: set by lavc
1028
     * - decoding: set by lavc
1029
     */
1030
    int has_b_frames;
1031

    
1032
    /**
1033
     * number of bytes per packet if constant and known or 0
1034
     * used by some WAV based audio codecs
1035
     */
1036
    int block_align;
1037

    
1038
    int parse_only; /* - decoding only: if true, only parsing is done
1039
                       (function avcodec_parse_frame()). The frame
1040
                       data is returned. Only MPEG codecs support this now. */
1041

    
1042
    /**
1043
     * 0-> h263 quant 1-> mpeg quant.
1044
     * - encoding: set by user.
1045
     * - decoding: unused
1046
     */
1047
    int mpeg_quant;
1048

    
1049
    /**
1050
     * pass1 encoding statistics output buffer.
1051
     * - encoding: set by lavc
1052
     * - decoding: unused
1053
     */
1054
    char *stats_out;
1055

    
1056
    /**
1057
     * pass2 encoding statistics input buffer.
1058
     * concatenated stuff from stats_out of pass1 should be placed here
1059
     * - encoding: allocated/set/freed by user
1060
     * - decoding: unused
1061
     */
1062
    char *stats_in;
1063

    
1064
    /**
1065
     * ratecontrol qmin qmax limiting method.
1066
     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
1067
     * - encoding: set by user.
1068
     * - decoding: unused
1069
     */
1070
    float rc_qsquish;
1071

    
1072
    float rc_qmod_amp;
1073
    int rc_qmod_freq;
1074

    
1075
    /**
1076
     * ratecontrol override, see RcOverride.
1077
     * - encoding: allocated/set/freed by user.
1078
     * - decoding: unused
1079
     */
1080
    RcOverride *rc_override;
1081
    int rc_override_count;
1082

    
1083
    /**
1084
     * rate control equation.
1085
     * - encoding: set by user
1086
     * - decoding: unused
1087
     */
1088
    char *rc_eq;
1089

    
1090
    /**
1091
     * maximum bitrate.
1092
     * - encoding: set by user.
1093
     * - decoding: unused
1094
     */
1095
    int rc_max_rate;
1096

    
1097
    /**
1098
     * minimum bitrate.
1099
     * - encoding: set by user.
1100
     * - decoding: unused
1101
     */
1102
    int rc_min_rate;
1103

    
1104
    /**
1105
     * decoder bitstream buffer size.
1106
     * - encoding: set by user.
1107
     * - decoding: unused
1108
     */
1109
    int rc_buffer_size;
1110
    float rc_buffer_aggressivity;
1111

    
1112
    /**
1113
     * qscale factor between p and i frames.
1114
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1115
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
1116
     * - encoding: set by user.
1117
     * - decoding: unused
1118
     */
1119
    float i_quant_factor;
1120

    
1121
    /**
1122
     * qscale offset between p and i frames.
1123
     * - encoding: set by user.
1124
     * - decoding: unused
1125
     */
1126
    float i_quant_offset;
1127

    
1128
    /**
1129
     * initial complexity for pass1 ratecontrol.
1130
     * - encoding: set by user.
1131
     * - decoding: unused
1132
     */
1133
    float rc_initial_cplx;
1134

    
1135
    /**
1136
     * dct algorithm, see FF_DCT_* below.
1137
     * - encoding: set by user
1138
     * - decoding: unused
1139
     */
1140
    int dct_algo;
1141
#define FF_DCT_AUTO    0
1142
#define FF_DCT_FASTINT 1
1143
#define FF_DCT_INT     2
1144
#define FF_DCT_MMX     3
1145
#define FF_DCT_MLIB    4
1146
#define FF_DCT_ALTIVEC 5
1147
#define FF_DCT_FAAN    6
1148

    
1149
    /**
1150
     * luminance masking (0-> disabled).
1151
     * - encoding: set by user
1152
     * - decoding: unused
1153
     */
1154
    float lumi_masking;
1155

    
1156
    /**
1157
     * temporary complexity masking (0-> disabled).
1158
     * - encoding: set by user
1159
     * - decoding: unused
1160
     */
1161
    float temporal_cplx_masking;
1162

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

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

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

    
1184

    
1185
    /* for binary compatibility */
1186
    int unused;
1187

    
1188
    /**
1189
     * idct algorithm, see FF_IDCT_* below.
1190
     * - encoding: set by user
1191
     * - decoding: set by user
1192
     */
1193
    int idct_algo;
1194
#define FF_IDCT_AUTO         0
1195
#define FF_IDCT_INT          1
1196
#define FF_IDCT_SIMPLE       2
1197
#define FF_IDCT_SIMPLEMMX    3
1198
#define FF_IDCT_LIBMPEG2MMX  4
1199
#define FF_IDCT_PS2          5
1200
#define FF_IDCT_MLIB         6
1201
#define FF_IDCT_ARM          7
1202
#define FF_IDCT_ALTIVEC      8
1203
#define FF_IDCT_SH4          9
1204
#define FF_IDCT_SIMPLEARM    10
1205
#define FF_IDCT_H264         11
1206
#define FF_IDCT_VP3          12
1207
#define FF_IDCT_IPP          13
1208
#define FF_IDCT_XVIDMMX      14
1209

    
1210
    /**
1211
     * slice count.
1212
     * - encoding: set by lavc
1213
     * - decoding: set by user (or 0)
1214
     */
1215
    int slice_count;
1216
    /**
1217
     * slice offsets in the frame in bytes.
1218
     * - encoding: set/allocated by lavc
1219
     * - decoding: set/allocated by user (or NULL)
1220
     */
1221
    int *slice_offset;
1222

    
1223
    /**
1224
     * error concealment flags.
1225
     * - encoding: unused
1226
     * - decoding: set by user
1227
     */
1228
    int error_concealment;
1229
#define FF_EC_GUESS_MVS   1
1230
#define FF_EC_DEBLOCK     2
1231

    
1232
    /**
1233
     * dsp_mask could be add used to disable unwanted CPU features
1234
     * CPU features (i.e. MMX, SSE. ...)
1235
     *
1236
     * with FORCE flag you may instead enable given CPU features
1237
     * (Dangerous: usable in case of misdetection, improper usage however will
1238
     * result into program crash)
1239
     */
1240
    unsigned dsp_mask;
1241
#define FF_MM_FORCE    0x80000000 /* force usage of selected flags (OR) */
1242
    /* lower 16 bits - CPU features */
1243
#ifdef HAVE_MMX
1244
#define FF_MM_MMX      0x0001 /* standard MMX */
1245
#define FF_MM_3DNOW    0x0004 /* AMD 3DNOW */
1246
#define FF_MM_MMXEXT   0x0002 /* SSE integer functions or AMD MMX ext */
1247
#define FF_MM_SSE      0x0008 /* SSE functions */
1248
#define FF_MM_SSE2     0x0010 /* PIV SSE2 functions */
1249
#define FF_MM_3DNOWEXT 0x0020 /* AMD 3DNowExt */
1250
#endif /* HAVE_MMX */
1251
#ifdef HAVE_IWMMXT
1252
#define FF_MM_IWMMXT   0x0100 /* XScale IWMMXT */
1253
#endif /* HAVE_IWMMXT */
1254

    
1255
    /**
1256
     * bits per sample/pixel from the demuxer (needed for huffyuv).
1257
     * - encoding: set by lavc
1258
     * - decoding: set by user
1259
     */
1260
     int bits_per_sample;
1261

    
1262
    /**
1263
     * prediction method (needed for huffyuv).
1264
     * - encoding: set by user
1265
     * - decoding: unused
1266
     */
1267
     int prediction_method;
1268
#define FF_PRED_LEFT   0
1269
#define FF_PRED_PLANE  1
1270
#define FF_PRED_MEDIAN 2
1271

    
1272
    /**
1273
     * sample aspect ratio (0 if unknown).
1274
     * numerator and denominator must be relative prime and smaller then 256 for some video standards
1275
     * - encoding: set by user.
1276
     * - decoding: set by lavc.
1277
     */
1278
    AVRational sample_aspect_ratio;
1279

    
1280
    /**
1281
     * the picture in the bitstream.
1282
     * - encoding: set by lavc
1283
     * - decoding: set by lavc
1284
     */
1285
    AVFrame *coded_frame;
1286

    
1287
    /**
1288
     * debug.
1289
     * - encoding: set by user.
1290
     * - decoding: set by user.
1291
     */
1292
    int debug;
1293
#define FF_DEBUG_PICT_INFO 1
1294
#define FF_DEBUG_RC        2
1295
#define FF_DEBUG_BITSTREAM 4
1296
#define FF_DEBUG_MB_TYPE   8
1297
#define FF_DEBUG_QP        16
1298
#define FF_DEBUG_MV        32
1299
#define FF_DEBUG_DCT_COEFF 0x00000040
1300
#define FF_DEBUG_SKIP      0x00000080
1301
#define FF_DEBUG_STARTCODE 0x00000100
1302
#define FF_DEBUG_PTS       0x00000200
1303
#define FF_DEBUG_ER        0x00000400
1304
#define FF_DEBUG_MMCO      0x00000800
1305
#define FF_DEBUG_BUGS      0x00001000
1306
#define FF_DEBUG_VIS_QP    0x00002000
1307
#define FF_DEBUG_VIS_MB_TYPE 0x00004000
1308

    
1309
    /**
1310
     * debug.
1311
     * - encoding: set by user.
1312
     * - decoding: set by user.
1313
     */
1314
    int debug_mv;
1315
#define FF_DEBUG_VIS_MV_P_FOR  0x00000001 //visualize forward predicted MVs of P frames
1316
#define FF_DEBUG_VIS_MV_B_FOR  0x00000002 //visualize forward predicted MVs of B frames
1317
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1318

    
1319
    /**
1320
     * error.
1321
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1322
     * - decoding: unused
1323
     */
1324
    uint64_t error[4];
1325

    
1326
    /**
1327
     * minimum MB quantizer.
1328
     * - encoding: unused
1329
     * - decoding: unused
1330
     */
1331
    int mb_qmin;
1332

    
1333
    /**
1334
     * maximum MB quantizer.
1335
     * - encoding: unused
1336
     * - decoding: unused
1337
     */
1338
    int mb_qmax;
1339

    
1340
    /**
1341
     * motion estimation compare function.
1342
     * - encoding: set by user.
1343
     * - decoding: unused
1344
     */
1345
    int me_cmp;
1346
    /**
1347
     * subpixel motion estimation compare function.
1348
     * - encoding: set by user.
1349
     * - decoding: unused
1350
     */
1351
    int me_sub_cmp;
1352
    /**
1353
     * macroblock compare function (not supported yet).
1354
     * - encoding: set by user.
1355
     * - decoding: unused
1356
     */
1357
    int mb_cmp;
1358
    /**
1359
     * interlaced dct compare function
1360
     * - encoding: set by user.
1361
     * - decoding: unused
1362
     */
1363
    int ildct_cmp;
1364
#define FF_CMP_SAD  0
1365
#define FF_CMP_SSE  1
1366
#define FF_CMP_SATD 2
1367
#define FF_CMP_DCT  3
1368
#define FF_CMP_PSNR 4
1369
#define FF_CMP_BIT  5
1370
#define FF_CMP_RD   6
1371
#define FF_CMP_ZERO 7
1372
#define FF_CMP_VSAD 8
1373
#define FF_CMP_VSSE 9
1374
#define FF_CMP_NSSE 10
1375
#define FF_CMP_W53  11
1376
#define FF_CMP_W97  12
1377
#define FF_CMP_DCTMAX 13
1378
#define FF_CMP_DCT264 14
1379
#define FF_CMP_CHROMA 256
1380

    
1381
    /**
1382
     * ME diamond size & shape.
1383
     * - encoding: set by user.
1384
     * - decoding: unused
1385
     */
1386
    int dia_size;
1387

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

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

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

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

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

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

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

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

    
1460
    /**
1461
     * intra quantizer bias.
1462
     * - encoding: set by user.
1463
     * - decoding: unused
1464
     */
1465
    int intra_quant_bias;
1466
#define FF_DEFAULT_QUANT_BIAS 999999
1467

    
1468
    /**
1469
     * inter quantizer bias.
1470
     * - encoding: set by user.
1471
     * - decoding: unused
1472
     */
1473
    int inter_quant_bias;
1474

    
1475
    /**
1476
     * color table ID.
1477
     * - encoding: unused.
1478
     * - decoding: which clrtable should be used for 8bit RGB images
1479
     *             table have to be stored somewhere FIXME
1480
     */
1481
    int color_table_id;
1482

    
1483
    /**
1484
     * internal_buffer count.
1485
     * Don't touch, used by lavc default_get_buffer()
1486
     */
1487
    int internal_buffer_count;
1488

    
1489
    /**
1490
     * internal_buffers.
1491
     * Don't touch, used by lavc default_get_buffer()
1492
     */
1493
    void *internal_buffer;
1494

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

    
1500
#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
1501
    /**
1502
     * global quality for codecs which cannot change it per frame.
1503
     * this should be proportional to MPEG1/2/4 qscale.
1504
     * - encoding: set by user.
1505
     * - decoding: unused
1506
     */
1507
    int global_quality;
1508

    
1509
#define FF_CODER_TYPE_VLC   0
1510
#define FF_CODER_TYPE_AC    1
1511
    /**
1512
     * coder type
1513
     * - encoding: set by user.
1514
     * - decoding: unused
1515
     */
1516
    int coder_type;
1517

    
1518
    /**
1519
     * context model
1520
     * - encoding: set by user.
1521
     * - decoding: unused
1522
     */
1523
    int context_model;
1524
#if 0
1525
    /**
1526
     *
1527
     * - encoding: unused
1528
     * - decoding: set by user.
1529
     */
1530
    uint8_t * (*realloc)(struct AVCodecContext *s, uint8_t *buf, int buf_size);
1531
#endif
1532

    
1533
    /**
1534
     * slice flags
1535
     * - encoding: unused
1536
     * - decoding: set by user.
1537
     */
1538
    int slice_flags;
1539
#define SLICE_FLAG_CODED_ORDER    0x0001 ///< draw_horiz_band() is called in coded order instead of display
1540
#define SLICE_FLAG_ALLOW_FIELD    0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1541
#define SLICE_FLAG_ALLOW_PLANE    0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1542

    
1543
    /**
1544
     * XVideo Motion Acceleration
1545
     * - encoding: forbidden
1546
     * - decoding: set by decoder
1547
     */
1548
    int xvmc_acceleration;
1549

    
1550
    /**
1551
     * macroblock decision mode
1552
     * - encoding: set by user.
1553
     * - decoding: unused
1554
     */
1555
    int mb_decision;
1556
#define FF_MB_DECISION_SIMPLE 0        ///< uses mb_cmp
1557
#define FF_MB_DECISION_BITS   1        ///< chooses the one which needs the fewest bits
1558
#define FF_MB_DECISION_RD     2        ///< rate distoration
1559

    
1560
    /**
1561
     * custom intra quantization matrix
1562
     * - encoding: set by user, can be NULL
1563
     * - decoding: set by lavc
1564
     */
1565
    uint16_t *intra_matrix;
1566

    
1567
    /**
1568
     * custom inter quantization matrix
1569
     * - encoding: set by user, can be NULL
1570
     * - decoding: set by lavc
1571
     */
1572
    uint16_t *inter_matrix;
1573

    
1574
    /**
1575
     * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1576
     * this is used to workaround some encoder bugs
1577
     * - encoding: unused
1578
     * - decoding: set by user, will be converted to upper case by lavc during init
1579
     */
1580
    unsigned int stream_codec_tag;
1581

    
1582
    /**
1583
     * scene change detection threshold.
1584
     * 0 is default, larger means fewer detected scene changes
1585
     * - encoding: set by user.
1586
     * - decoding: unused
1587
     */
1588
    int scenechange_threshold;
1589

    
1590
    /**
1591
     * minimum lagrange multipler
1592
     * - encoding: set by user.
1593
     * - decoding: unused
1594
     */
1595
    int lmin;
1596

    
1597
    /**
1598
     * maximum lagrange multipler
1599
     * - encoding: set by user.
1600
     * - decoding: unused
1601
     */
1602
    int lmax;
1603

    
1604
    /**
1605
     * Palette control structure
1606
     * - encoding: ??? (no palette-enabled encoder yet)
1607
     * - decoding: set by user.
1608
     */
1609
    struct AVPaletteControl *palctrl;
1610

    
1611
    /**
1612
     * noise reduction strength
1613
     * - encoding: set by user.
1614
     * - decoding: unused
1615
     */
1616
    int noise_reduction;
1617

    
1618
    /**
1619
     * called at the beginning of a frame to get cr buffer for it.
1620
     * buffer type (size, hints) must be the same. lavc won't check it.
1621
     * lavc will pass previous buffer in pic, function should return
1622
     * same buffer or new buffer with old frame "painted" into it.
1623
     * if pic.data[0] == NULL must behave like get_buffer().
1624
     * - encoding: unused
1625
     * - decoding: set by lavc, user can override
1626
     */
1627
    int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
1628

    
1629
    /**
1630
     * number of bits which should be loaded into the rc buffer before decoding starts
1631
     * - encoding: set by user.
1632
     * - decoding: unused
1633
     */
1634
    int rc_initial_buffer_occupancy;
1635

    
1636
    /**
1637
     *
1638
     * - encoding: set by user.
1639
     * - decoding: unused
1640
     */
1641
    int inter_threshold;
1642

    
1643
    /**
1644
     * CODEC_FLAG2_*.
1645
     * - encoding: set by user.
1646
     * - decoding: set by user.
1647
     */
1648
    int flags2;
1649

    
1650
    /**
1651
     * simulates errors in the bitstream to test error concealment.
1652
     * - encoding: set by user.
1653
     * - decoding: unused.
1654
     */
1655
    int error_rate;
1656

    
1657
    /**
1658
     * MP3 antialias algorithm, see FF_AA_* below.
1659
     * - encoding: unused
1660
     * - decoding: set by user
1661
     */
1662
    int antialias_algo;
1663
#define FF_AA_AUTO    0
1664
#define FF_AA_FASTINT 1 //not implemented yet
1665
#define FF_AA_INT     2
1666
#define FF_AA_FLOAT   3
1667
    /**
1668
     * Quantizer noise shaping.
1669
     * - encoding: set by user
1670
     * - decoding: unused
1671
     */
1672
    int quantizer_noise_shaping;
1673

    
1674
    /**
1675
     * Thread count.
1676
     * is used to decide how many independant tasks should be passed to execute()
1677
     * - encoding: set by user
1678
     * - decoding: set by user
1679
     */
1680
    int thread_count;
1681

    
1682
    /**
1683
     * the codec may call this to execute several independant things. it will return only after
1684
     * finishing all tasks, the user may replace this with some multithreaded implementation, the
1685
     * default implementation will execute the parts serially
1686
     * @param count the number of things to execute
1687
     * - encoding: set by lavc, user can override
1688
     * - decoding: set by lavc, user can override
1689
     */
1690
    int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
1691

    
1692
    /**
1693
     * Thread opaque.
1694
     * can be used by execute() to store some per AVCodecContext stuff.
1695
     * - encoding: set by execute()
1696
     * - decoding: set by execute()
1697
     */
1698
    void *thread_opaque;
1699

    
1700
    /**
1701
     * Motion estimation threshold. under which no motion estimation is
1702
     * performed, but instead the user specified motion vectors are used
1703
     *
1704
     * - encoding: set by user
1705
     * - decoding: unused
1706
     */
1707
     int me_threshold;
1708

    
1709
    /**
1710
     * Macroblock threshold. under which the user specified macroblock types will be used
1711
     * - encoding: set by user
1712
     * - decoding: unused
1713
     */
1714
     int mb_threshold;
1715

    
1716
    /**
1717
     * precision of the intra dc coefficient - 8.
1718
     * - encoding: set by user
1719
     * - decoding: unused
1720
     */
1721
     int intra_dc_precision;
1722

    
1723
    /**
1724
     * noise vs. sse weight for the nsse comparsion function.
1725
     * - encoding: set by user
1726
     * - decoding: unused
1727
     */
1728
     int nsse_weight;
1729

    
1730
    /**
1731
     * number of macroblock rows at the top which are skipped.
1732
     * - encoding: unused
1733
     * - decoding: set by user
1734
     */
1735
     int skip_top;
1736

    
1737
    /**
1738
     * number of macroblock rows at the bottom which are skipped.
1739
     * - encoding: unused
1740
     * - decoding: set by user
1741
     */
1742
     int skip_bottom;
1743

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

    
1752
    /**
1753
     * level
1754
     * - encoding: set by user
1755
     * - decoding: set by lavc
1756
     */
1757
     int level;
1758
#define FF_LEVEL_UNKNOWN -99
1759

    
1760
    /**
1761
     * low resolution decoding. 1-> 1/2 size, 2->1/4 size
1762
     * - encoding: unused
1763
     * - decoding: set by user
1764
     */
1765
     int lowres;
1766

    
1767
    /**
1768
     * bitsream width / height. may be different from width/height if lowres
1769
     * or other things are used
1770
     * - encoding: unused
1771
     * - decoding: set by user before init if known, codec should override / dynamically change if needed
1772
     */
1773
    int coded_width, coded_height;
1774

    
1775
    /**
1776
     * frame skip threshold
1777
     * - encoding: set by user
1778
     * - decoding: unused
1779
     */
1780
    int frame_skip_threshold;
1781

    
1782
    /**
1783
     * frame skip factor
1784
     * - encoding: set by user
1785
     * - decoding: unused
1786
     */
1787
    int frame_skip_factor;
1788

    
1789
    /**
1790
     * frame skip exponent
1791
     * - encoding: set by user
1792
     * - decoding: unused
1793
     */
1794
    int frame_skip_exp;
1795

    
1796
    /**
1797
     * frame skip comparission function
1798
     * - encoding: set by user.
1799
     * - decoding: unused
1800
     */
1801
    int frame_skip_cmp;
1802

    
1803
    /**
1804
     * border processing masking. raises the quantizer for mbs on the borders
1805
     * of the picture.
1806
     * - encoding: set by user
1807
     * - decoding: unused
1808
     */
1809
    float border_masking;
1810

    
1811
    /**
1812
     * minimum MB lagrange multipler.
1813
     * - encoding: set by user.
1814
     * - decoding: unused
1815
     */
1816
    int mb_lmin;
1817

    
1818
    /**
1819
     * maximum MB lagrange multipler.
1820
     * - encoding: set by user.
1821
     * - decoding: unused
1822
     */
1823
    int mb_lmax;
1824

    
1825
    /**
1826
     *
1827
     * - encoding: set by user.
1828
     * - decoding: unused
1829
     */
1830
    int me_penalty_compensation;
1831

    
1832
    /**
1833
     *
1834
     * - encoding: unused
1835
     * - decoding: set by user.
1836
     */
1837
    enum AVDiscard skip_loop_filter;
1838

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

    
1846
    /**
1847
     *
1848
     * - encoding: unused
1849
     * - decoding: set by user.
1850
     */
1851
    enum AVDiscard skip_frame;
1852

    
1853
    /**
1854
     *
1855
     * - encoding: set by user.
1856
     * - decoding: unused
1857
     */
1858
    int bidir_refine;
1859

    
1860
    /**
1861
     *
1862
     * - encoding: set by user.
1863
     * - decoding: unused
1864
     */
1865
    int brd_scale;
1866

    
1867
    /**
1868
     * constant rate factor - quality-based VBR - values ~correspond to qps
1869
     * - encoding: set by user.
1870
     * - decoding: unused
1871
     */
1872
    int crf;
1873

    
1874
    /**
1875
     * constant quantization parameter rate control method
1876
     * - encoding: set by user.
1877
     * - decoding: unused
1878
     */
1879
    int cqp;
1880

    
1881
    /**
1882
     * minimum gop size
1883
     * - encoding: set by user.
1884
     * - decoding: unused
1885
     */
1886
    int keyint_min;
1887

    
1888
    /**
1889
     * number of reference frames
1890
     * - encoding: set by user.
1891
     * - decoding: unused
1892
     */
1893
    int refs;
1894

    
1895
    /**
1896
     * chroma qp offset from luma
1897
     * - encoding: set by user.
1898
     * - decoding: unused
1899
     */
1900
    int chromaoffset;
1901

    
1902
    /**
1903
     * influences how often b-frames are used
1904
     * - encoding: set by user.
1905
     * - decoding: unused
1906
     */
1907
    int bframebias;
1908

    
1909
    /**
1910
     * trellis RD quantization
1911
     * - encoding: set by user.
1912
     * - decoding: unused
1913
     */
1914
    int trellis;
1915

    
1916
    /**
1917
     * reduce fluctuations in qp (before curve compression)
1918
     * - encoding: set by user.
1919
     * - decoding: unused
1920
     */
1921
    float complexityblur;
1922

    
1923
    /**
1924
     * in-loop deblocking filter alphac0 parameter
1925
     * alpha is in the range -6...6
1926
     * - encoding: set by user.
1927
     * - decoding: unused
1928
     */
1929
    int deblockalpha;
1930

    
1931
    /**
1932
     * in-loop deblocking filter beta parameter
1933
     * beta is in the range -6...6
1934
     * - encoding: set by user.
1935
     * - decoding: unused
1936
     */
1937
    int deblockbeta;
1938

    
1939
    /**
1940
     * macroblock subpartition sizes to consider - p8x8, p4x4, b8x8, i8x8, i4x4
1941
     * - encoding: set by user.
1942
     * - decoding: unused
1943
     */
1944
    int partitions;
1945
#define X264_PART_I4X4 0x001  /* Analyse i4x4 */
1946
#define X264_PART_I8X8 0x002  /* Analyse i8x8 (requires 8x8 transform) */
1947
#define X264_PART_P8X8 0x010  /* Analyse p16x8, p8x16 and p8x8 */
1948
#define X264_PART_P4X4 0x020  /* Analyse p8x4, p4x8, p4x4 */
1949
#define X264_PART_B8X8 0x100  /* Analyse b16x8, b8x16 and b8x8 */
1950

    
1951
    /**
1952
     * direct mv prediction mode - 0 (none), 1 (spatial), 2 (temporal)
1953
     * - encoding: set by user.
1954
     * - decoding: unused
1955
     */
1956
    int directpred;
1957

    
1958
    /**
1959
     * audio cutoff bandwidth (0 means "automatic") . Currently used only by FAAC
1960
     * - encoding: set by user.
1961
     * - decoding: unused
1962
     */
1963
    int cutoff;
1964

    
1965
    /**
1966
     * multiplied by qscale for each frame and added to scene_change_score
1967
     * - encoding: set by user.
1968
     * - decoding: unused
1969
     */
1970
    int scenechange_factor;
1971

    
1972
    /**
1973
     *
1974
     * note: value depends upon the compare functin used for fullpel ME
1975
     * - encoding: set by user.
1976
     * - decoding: unused
1977
     */
1978
    int mv0_threshold;
1979

    
1980
    /**
1981
     * adjusts sensitivity of b_frame_strategy 1
1982
     * - encoding: set by user.
1983
     * - decoding: unused
1984
     */
1985
    int b_sensitivity;
1986
} AVCodecContext;
1987

    
1988
/**
1989
 * AVCodec.
1990
 */
1991
typedef struct AVCodec {
1992
    const char *name;
1993
    enum CodecType type;
1994
    enum CodecID id;
1995
    int priv_data_size;
1996
    int (*init)(AVCodecContext *);
1997
    int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
1998
    int (*close)(AVCodecContext *);
1999
    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
2000
                  uint8_t *buf, int buf_size);
2001
    int capabilities;
2002
#if LIBAVCODEC_VERSION_INT < ((50<<16)+(0<<8)+0)
2003
    void *dummy; // FIXME remove next time we break binary compatibility
2004
#endif
2005
    struct AVCodec *next;
2006
    void (*flush)(AVCodecContext *);
2007
    const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
2008
    const enum PixelFormat *pix_fmts;       ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
2009
} AVCodec;
2010

    
2011
/**
2012
 * four components are given, that's all.
2013
 * the last component is alpha
2014
 */
2015
typedef struct AVPicture {
2016
    uint8_t *data[4];
2017
    int linesize[4];       ///< number of bytes per line
2018
} AVPicture;
2019

    
2020
/**
2021
 * AVPaletteControl
2022
 * This structure defines a method for communicating palette changes
2023
 * between and demuxer and a decoder.
2024
 */
2025
#define AVPALETTE_SIZE 1024
2026
#define AVPALETTE_COUNT 256
2027
typedef struct AVPaletteControl {
2028

    
2029
    /* demuxer sets this to 1 to indicate the palette has changed;
2030
     * decoder resets to 0 */
2031
    int palette_changed;
2032

    
2033
    /* 4-byte ARGB palette entries, stored in native byte order; note that
2034
     * the individual palette components should be on a 8-bit scale; if
2035
     * the palette data comes from a IBM VGA native format, the component
2036
     * data is probably 6 bits in size and needs to be scaled */
2037
    unsigned int palette[AVPALETTE_COUNT];
2038

    
2039
} AVPaletteControl;
2040

    
2041
typedef struct AVSubtitleRect {
2042
    uint16_t x;
2043
    uint16_t y;
2044
    uint16_t w;
2045
    uint16_t h;
2046
    uint16_t nb_colors;
2047
    int linesize;
2048
    uint32_t *rgba_palette;
2049
    uint8_t *bitmap;
2050
} AVSubtitleRect;
2051

    
2052
typedef struct AVSubtitle {
2053
    uint16_t format; /* 0 = graphics */
2054
    uint32_t start_display_time; /* relative to packet pts, in ms */
2055
    uint32_t end_display_time; /* relative to packet pts, in ms */
2056
    uint32_t num_rects;
2057
    AVSubtitleRect *rects;
2058
} AVSubtitle;
2059

    
2060
extern AVCodec ac3_encoder;
2061
extern AVCodec mp2_encoder;
2062
extern AVCodec mp3lame_encoder;
2063
extern AVCodec oggvorbis_encoder;
2064
extern AVCodec oggtheora_encoder;
2065
extern AVCodec faac_encoder;
2066
extern AVCodec flac_encoder;
2067
extern AVCodec xvid_encoder;
2068
extern AVCodec mpeg1video_encoder;
2069
extern AVCodec mpeg2video_encoder;
2070
extern AVCodec h261_encoder;
2071
extern AVCodec h263_encoder;
2072
extern AVCodec h263p_encoder;
2073
extern AVCodec flv_encoder;
2074
extern AVCodec rv10_encoder;
2075
extern AVCodec rv20_encoder;
2076
extern AVCodec dvvideo_encoder;
2077
extern AVCodec mjpeg_encoder;
2078
extern AVCodec ljpeg_encoder;
2079
extern AVCodec jpegls_encoder;
2080
extern AVCodec png_encoder;
2081
extern AVCodec ppm_encoder;
2082
extern AVCodec pgm_encoder;
2083
extern AVCodec pgmyuv_encoder;
2084
extern AVCodec pbm_encoder;
2085
extern AVCodec pam_encoder;
2086
extern AVCodec mpeg4_encoder;
2087
extern AVCodec msmpeg4v1_encoder;
2088
extern AVCodec msmpeg4v2_encoder;
2089
extern AVCodec msmpeg4v3_encoder;
2090
extern AVCodec wmv1_encoder;
2091
extern AVCodec wmv2_encoder;
2092
extern AVCodec huffyuv_encoder;
2093
extern AVCodec ffvhuff_encoder;
2094
extern AVCodec h264_encoder;
2095
extern AVCodec asv1_encoder;
2096
extern AVCodec asv2_encoder;
2097
extern AVCodec vcr1_encoder;
2098
extern AVCodec ffv1_encoder;
2099
extern AVCodec snow_encoder;
2100
extern AVCodec mdec_encoder;
2101
extern AVCodec zlib_encoder;
2102
extern AVCodec sonic_encoder;
2103
extern AVCodec sonic_ls_encoder;
2104
extern AVCodec svq1_encoder;
2105
extern AVCodec x264_encoder;
2106

    
2107
extern AVCodec h263_decoder;
2108
extern AVCodec h261_decoder;
2109
extern AVCodec mpeg4_decoder;
2110
extern AVCodec msmpeg4v1_decoder;
2111
extern AVCodec msmpeg4v2_decoder;
2112
extern AVCodec msmpeg4v3_decoder;
2113
extern AVCodec wmv1_decoder;
2114
extern AVCodec wmv2_decoder;
2115
extern AVCodec vc1_decoder;
2116
extern AVCodec wmv3_decoder;
2117
extern AVCodec mpeg1video_decoder;
2118
extern AVCodec mpeg2video_decoder;
2119
extern AVCodec mpegvideo_decoder;
2120
extern AVCodec mpeg_xvmc_decoder;
2121
extern AVCodec h263i_decoder;
2122
extern AVCodec flv_decoder;
2123
extern AVCodec rv10_decoder;
2124
extern AVCodec rv20_decoder;
2125
extern AVCodec rv30_decoder;
2126
extern AVCodec rv40_decoder;
2127
extern AVCodec svq1_decoder;
2128
extern AVCodec svq3_decoder;
2129
extern AVCodec dvvideo_decoder;
2130
extern AVCodec wmav1_decoder;
2131
extern AVCodec wmav2_decoder;
2132
extern AVCodec mjpeg_decoder;
2133
extern AVCodec mjpegb_decoder;
2134
extern AVCodec sp5x_decoder;
2135
extern AVCodec png_decoder;
2136
extern AVCodec mp2_decoder;
2137
extern AVCodec mp3_decoder;
2138
extern AVCodec mp3adu_decoder;
2139
extern AVCodec mp3on4_decoder;
2140
extern AVCodec qdm2_decoder;
2141
extern AVCodec cook_decoder;
2142
extern AVCodec truespeech_decoder;
2143
extern AVCodec tta_decoder;
2144
extern AVCodec mace3_decoder;
2145
extern AVCodec mace6_decoder;
2146
extern AVCodec huffyuv_decoder;
2147
extern AVCodec ffvhuff_decoder;
2148
extern AVCodec oggvorbis_decoder;
2149
extern AVCodec oggtheora_decoder;
2150
extern AVCodec cyuv_decoder;
2151
extern AVCodec h264_decoder;
2152
extern AVCodec indeo3_decoder;
2153
extern AVCodec vp3_decoder;
2154
extern AVCodec theora_decoder;
2155
extern AVCodec amr_nb_decoder;
2156
extern AVCodec amr_nb_encoder;
2157
extern AVCodec amr_wb_encoder;
2158
extern AVCodec amr_wb_decoder;
2159
extern AVCodec aac_decoder;
2160
extern AVCodec mpeg4aac_decoder;
2161
extern AVCodec asv1_decoder;
2162
extern AVCodec asv2_decoder;
2163
extern AVCodec vcr1_decoder;
2164
extern AVCodec cljr_decoder;
2165
extern AVCodec ffv1_decoder;
2166
extern AVCodec snow_decoder;
2167
extern AVCodec fourxm_decoder;
2168
extern AVCodec mdec_decoder;
2169
extern AVCodec roq_decoder;
2170
extern AVCodec interplay_video_decoder;
2171
extern AVCodec xan_wc3_decoder;
2172
extern AVCodec rpza_decoder;
2173
extern AVCodec cinepak_decoder;
2174
extern AVCodec msrle_decoder;
2175
extern AVCodec msvideo1_decoder;
2176
extern AVCodec vqa_decoder;
2177
extern AVCodec idcin_decoder;
2178
extern AVCodec eightbps_decoder;
2179
extern AVCodec smc_decoder;
2180
extern AVCodec flic_decoder;
2181
extern AVCodec vmdvideo_decoder;
2182
extern AVCodec vmdaudio_decoder;
2183
extern AVCodec truemotion1_decoder;
2184
extern AVCodec truemotion2_decoder;
2185
extern AVCodec mszh_decoder;
2186
extern AVCodec zlib_decoder;
2187
extern AVCodec ra_144_decoder;
2188
extern AVCodec ra_288_decoder;
2189
extern AVCodec roq_dpcm_decoder;
2190
extern AVCodec interplay_dpcm_decoder;
2191
extern AVCodec xan_dpcm_decoder;
2192
extern AVCodec sol_dpcm_decoder;
2193
extern AVCodec sonic_decoder;
2194
extern AVCodec qtrle_decoder;
2195
extern AVCodec flac_decoder;
2196
extern AVCodec tscc_decoder;
2197
extern AVCodec cscd_decoder;
2198
extern AVCodec nuv_decoder;
2199
extern AVCodec ulti_decoder;
2200
extern AVCodec qdraw_decoder;
2201
extern AVCodec xl_decoder;
2202
extern AVCodec qpeg_decoder;
2203
extern AVCodec shorten_decoder;
2204
extern AVCodec loco_decoder;
2205
extern AVCodec wnv1_decoder;
2206
extern AVCodec aasc_decoder;
2207
extern AVCodec alac_decoder;
2208
extern AVCodec ws_snd1_decoder;
2209
extern AVCodec indeo2_decoder;
2210
extern AVCodec vorbis_decoder;
2211
extern AVCodec fraps_decoder;
2212
extern AVCodec libgsm_encoder;
2213
extern AVCodec libgsm_decoder;
2214
extern AVCodec bmp_decoder;
2215
extern AVCodec mmvideo_decoder;
2216
extern AVCodec zmbv_decoder;
2217
extern AVCodec avs_decoder;
2218
extern AVCodec smacker_decoder;
2219
extern AVCodec smackaud_decoder;
2220
extern AVCodec kmvc_decoder;
2221
extern AVCodec flashsv_decoder;
2222

    
2223
/* pcm codecs */
2224
#define PCM_CODEC(id, name) \
2225
extern AVCodec name ## _decoder; \
2226
extern AVCodec name ## _encoder
2227

    
2228
PCM_CODEC(CODEC_ID_PCM_S32LE, pcm_s32le);
2229
PCM_CODEC(CODEC_ID_PCM_S32BE, pcm_s32be);
2230
PCM_CODEC(CODEC_ID_PCM_U32LE, pcm_u32le);
2231
PCM_CODEC(CODEC_ID_PCM_U32BE, pcm_u32be);
2232
PCM_CODEC(CODEC_ID_PCM_S24LE, pcm_s24le);
2233
PCM_CODEC(CODEC_ID_PCM_S24BE, pcm_s24be);
2234
PCM_CODEC(CODEC_ID_PCM_U24LE, pcm_u24le);
2235
PCM_CODEC(CODEC_ID_PCM_U24BE, pcm_u24be);
2236
PCM_CODEC(CODEC_ID_PCM_S24DAUD, pcm_s24daud);
2237
PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
2238
PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
2239
PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
2240
PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
2241
PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
2242
PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
2243
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
2244
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
2245

    
2246
/* adpcm codecs */
2247

    
2248
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
2249
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
2250
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
2251
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
2252
PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
2253
PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
2254
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
2255
PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
2256
PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
2257
PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
2258
PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
2259
PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
2260
PCM_CODEC(CODEC_ID_ADPCM_CT, adpcm_ct);
2261
PCM_CODEC(CODEC_ID_ADPCM_SWF, adpcm_swf);
2262
PCM_CODEC(CODEC_ID_ADPCM_YAMAHA, adpcm_yamaha);
2263
PCM_CODEC(CODEC_ID_ADPCM_SBPRO_4, adpcm_sbpro_4);
2264
PCM_CODEC(CODEC_ID_ADPCM_SBPRO_3, adpcm_sbpro_3);
2265
PCM_CODEC(CODEC_ID_ADPCM_SBPRO_2, adpcm_sbpro_2);
2266

    
2267
#undef PCM_CODEC
2268

    
2269
/* dummy raw video codec */
2270
extern AVCodec rawvideo_encoder;
2271
extern AVCodec rawvideo_decoder;
2272

    
2273
/* the following codecs use external GPL libs */
2274
extern AVCodec ac3_decoder;
2275
extern AVCodec dts_decoder;
2276

    
2277
/* subtitles */
2278
extern AVCodec dvdsub_encoder;
2279
extern AVCodec dvdsub_decoder;
2280
extern AVCodec dvbsub_encoder;
2281
extern AVCodec dvbsub_decoder;
2282

    
2283
/* resample.c */
2284

    
2285
struct ReSampleContext;
2286
struct AVResampleContext;
2287

    
2288
typedef struct ReSampleContext ReSampleContext;
2289

    
2290
ReSampleContext *audio_resample_init(int output_channels, int input_channels,
2291
                                     int output_rate, int input_rate);
2292
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
2293
void audio_resample_close(ReSampleContext *s);
2294

    
2295
struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
2296
int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
2297
void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
2298
void av_resample_close(struct AVResampleContext *c);
2299

    
2300
/* YUV420 format is assumed ! */
2301

    
2302
struct ImgReSampleContext;
2303

    
2304
typedef struct ImgReSampleContext ImgReSampleContext;
2305

    
2306
ImgReSampleContext *img_resample_init(int output_width, int output_height,
2307
                                      int input_width, int input_height);
2308

    
2309
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
2310
                                      int iwidth, int iheight,
2311
                                      int topBand, int bottomBand,
2312
                                      int leftBand, int rightBand,
2313
                                      int padtop, int padbottom,
2314
                                      int padleft, int padright);
2315

    
2316

    
2317
void img_resample(ImgReSampleContext *s,
2318
                  AVPicture *output, const AVPicture *input);
2319

    
2320
void img_resample_close(ImgReSampleContext *s);
2321

    
2322
/**
2323
 * Allocate memory for a picture.  Call avpicture_free to free it.
2324
 *
2325
 * @param picture the picture to be filled in.
2326
 * @param pix_fmt the format of the picture.
2327
 * @param width the width of the picture.
2328
 * @param height the height of the picture.
2329
 * @return 0 if successful, -1 if not.
2330
 */
2331
int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
2332

    
2333
/* Free a picture previously allocated by avpicture_alloc. */
2334
void avpicture_free(AVPicture *picture);
2335

    
2336
int avpicture_fill(AVPicture *picture, uint8_t *ptr,
2337
                   int pix_fmt, int width, int height);
2338
int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
2339
                     unsigned char *dest, int dest_size);
2340
int avpicture_get_size(int pix_fmt, int width, int height);
2341
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
2342
const char *avcodec_get_pix_fmt_name(int pix_fmt);
2343
void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
2344
enum PixelFormat avcodec_get_pix_fmt(const char* name);
2345
unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat p);
2346

    
2347
#define FF_LOSS_RESOLUTION  0x0001 /* loss due to resolution change */
2348
#define FF_LOSS_DEPTH       0x0002 /* loss due to color depth change */
2349
#define FF_LOSS_COLORSPACE  0x0004 /* loss due to color space conversion */
2350
#define FF_LOSS_ALPHA       0x0008 /* loss of alpha bits */
2351
#define FF_LOSS_COLORQUANT  0x0010 /* loss due to color quantization */
2352
#define FF_LOSS_CHROMA      0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
2353

    
2354
int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
2355
                             int has_alpha);
2356
int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
2357
                              int has_alpha, int *loss_ptr);
2358

    
2359
#define FF_ALPHA_TRANSP       0x0001 /* image has some totally transparent pixels */
2360
#define FF_ALPHA_SEMI_TRANSP  0x0002 /* image has some transparent pixels */
2361
int img_get_alpha_info(const AVPicture *src,
2362
                       int pix_fmt, int width, int height);
2363

    
2364
/* convert among pixel formats */
2365
int img_convert(AVPicture *dst, int dst_pix_fmt,
2366
                const AVPicture *src, int pix_fmt,
2367
                int width, int height);
2368

    
2369
/* deinterlace a picture */
2370
int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
2371
                          int pix_fmt, int width, int height);
2372

    
2373
/* external high level API */
2374

    
2375
extern AVCodec *first_avcodec;
2376

    
2377
/* returns LIBAVCODEC_VERSION_INT constant */
2378
unsigned avcodec_version(void);
2379
/* returns LIBAVCODEC_BUILD constant */
2380
unsigned avcodec_build(void);
2381
void avcodec_init(void);
2382

    
2383
void register_avcodec(AVCodec *format);
2384
AVCodec *avcodec_find_encoder(enum CodecID id);
2385
AVCodec *avcodec_find_encoder_by_name(const char *name);
2386
AVCodec *avcodec_find_decoder(enum CodecID id);
2387
AVCodec *avcodec_find_decoder_by_name(const char *name);
2388
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
2389

    
2390
void avcodec_get_context_defaults(AVCodecContext *s);
2391
AVCodecContext *avcodec_alloc_context(void);
2392
void avcodec_get_frame_defaults(AVFrame *pic);
2393
AVFrame *avcodec_alloc_frame(void);
2394

    
2395
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
2396
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
2397
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
2398
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
2399
int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h);
2400
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
2401

    
2402
int avcodec_thread_init(AVCodecContext *s, int thread_count);
2403
void avcodec_thread_free(AVCodecContext *s);
2404
int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2405
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2406
//FIXME func typedef
2407

    
2408
/**
2409
 * opens / inits the AVCodecContext.
2410
 * not thread save!
2411
 */
2412
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
2413

    
2414
int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
2415
                         int *frame_size_ptr,
2416
                         uint8_t *buf, int buf_size);
2417
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
2418
                         int *got_picture_ptr,
2419
                         uint8_t *buf, int buf_size);
2420
int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
2421
                            int *got_sub_ptr,
2422
                            const uint8_t *buf, int buf_size);
2423
int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata,
2424
                        int *data_size_ptr,
2425
                        uint8_t *buf, int buf_size);
2426
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2427
                         const short *samples);
2428
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2429
                         const AVFrame *pict);
2430
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
2431
                            const AVSubtitle *sub);
2432

    
2433
int avcodec_close(AVCodecContext *avctx);
2434

    
2435
void avcodec_register_all(void);
2436

    
2437
void avcodec_flush_buffers(AVCodecContext *avctx);
2438

    
2439
void avcodec_default_free_buffers(AVCodecContext *s);
2440

    
2441
/* misc usefull functions */
2442

    
2443
/**
2444
 * returns a single letter to describe the picture type
2445
 */
2446
char av_get_pict_type_char(int pict_type);
2447

    
2448

    
2449
/* frame parsing */
2450
typedef struct AVCodecParserContext {
2451
    void *priv_data;
2452
    struct AVCodecParser *parser;
2453
    int64_t frame_offset; /* offset of the current frame */
2454
    int64_t cur_offset; /* current offset
2455
                           (incremented by each av_parser_parse()) */
2456
    int64_t last_frame_offset; /* offset of the last frame */
2457
    /* video info */
2458
    int pict_type; /* XXX: put it back in AVCodecContext */
2459
    int repeat_pict; /* XXX: put it back in AVCodecContext */
2460
    int64_t pts;     /* pts of the current frame */
2461
    int64_t dts;     /* dts of the current frame */
2462

    
2463
    /* private data */
2464
    int64_t last_pts;
2465
    int64_t last_dts;
2466
    int fetch_timestamp;
2467

    
2468
#define AV_PARSER_PTS_NB 4
2469
    int cur_frame_start_index;
2470
    int64_t cur_frame_offset[AV_PARSER_PTS_NB];
2471
    int64_t cur_frame_pts[AV_PARSER_PTS_NB];
2472
    int64_t cur_frame_dts[AV_PARSER_PTS_NB];
2473

    
2474
    int flags;
2475
#define PARSER_FLAG_COMPLETE_FRAMES           0x0001
2476
} AVCodecParserContext;
2477

    
2478
typedef struct AVCodecParser {
2479
    int codec_ids[5]; /* several codec IDs are permitted */
2480
    int priv_data_size;
2481
    int (*parser_init)(AVCodecParserContext *s);
2482
    int (*parser_parse)(AVCodecParserContext *s,
2483
                        AVCodecContext *avctx,
2484
                        uint8_t **poutbuf, int *poutbuf_size,
2485
                        const uint8_t *buf, int buf_size);
2486
    void (*parser_close)(AVCodecParserContext *s);
2487
    int (*split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size);
2488
    struct AVCodecParser *next;
2489
} AVCodecParser;
2490

    
2491
extern AVCodecParser *av_first_parser;
2492

    
2493
void av_register_codec_parser(AVCodecParser *parser);
2494
AVCodecParserContext *av_parser_init(int codec_id);
2495
int av_parser_parse(AVCodecParserContext *s,
2496
                    AVCodecContext *avctx,
2497
                    uint8_t **poutbuf, int *poutbuf_size,
2498
                    const uint8_t *buf, int buf_size,
2499
                    int64_t pts, int64_t dts);
2500
int av_parser_change(AVCodecParserContext *s,
2501
                     AVCodecContext *avctx,
2502
                     uint8_t **poutbuf, int *poutbuf_size,
2503
                     const uint8_t *buf, int buf_size, int keyframe);
2504
void av_parser_close(AVCodecParserContext *s);
2505

    
2506
extern AVCodecParser mpegvideo_parser;
2507
extern AVCodecParser mpeg4video_parser;
2508
extern AVCodecParser h261_parser;
2509
extern AVCodecParser h263_parser;
2510
extern AVCodecParser h264_parser;
2511
extern AVCodecParser mjpeg_parser;
2512
extern AVCodecParser pnm_parser;
2513
extern AVCodecParser mpegaudio_parser;
2514
extern AVCodecParser ac3_parser;
2515
extern AVCodecParser dvdsub_parser;
2516
extern AVCodecParser dvbsub_parser;
2517
extern AVCodecParser aac_parser;
2518

    
2519
/* memory */
2520
void *av_malloc(unsigned int size);
2521
void *av_mallocz(unsigned int size);
2522
void *av_realloc(void *ptr, unsigned int size);
2523
void av_free(void *ptr);
2524
char *av_strdup(const char *s);
2525
void av_freep(void *ptr);
2526
void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
2527
/* for static data only */
2528
/* call av_free_static to release all staticaly allocated tables */
2529
void av_free_static(void);
2530
void *av_mallocz_static(unsigned int size);
2531
void *av_realloc_static(void *ptr, unsigned int size);
2532

    
2533
void img_copy(AVPicture *dst, const AVPicture *src,
2534
              int pix_fmt, int width, int height);
2535

    
2536
int img_crop(AVPicture *dst, const AVPicture *src,
2537
             int pix_fmt, int top_band, int left_band);
2538

    
2539
int img_pad(AVPicture *dst, const AVPicture *src, int height, int width, int pix_fmt,
2540
            int padtop, int padbottom, int padleft, int padright, int *color);
2541

    
2542
/* av_log API */
2543

    
2544
#include <stdarg.h>
2545

    
2546
#define AV_LOG_QUIET -1
2547
#define AV_LOG_ERROR 0
2548
#define AV_LOG_INFO 1
2549
#define AV_LOG_DEBUG 2
2550

    
2551
#ifdef __GNUC__
2552
extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
2553
#else
2554
extern void av_log(void*, int level, const char *fmt, ...);
2555
#endif
2556

    
2557
extern void av_vlog(void*, int level, const char *fmt, va_list);
2558
extern int av_log_get_level(void);
2559
extern void av_log_set_level(int);
2560
extern void av_log_set_callback(void (*)(void*, int, const char*, va_list));
2561

    
2562
/* endian macros */
2563
#if !defined(BE_16) || !defined(BE_32) || !defined(LE_16) || !defined(LE_32)
2564
#define BE_16(x)  ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
2565
#define BE_32(x)  ((((uint8_t*)(x))[0] << 24) | \
2566
                   (((uint8_t*)(x))[1] << 16) | \
2567
                   (((uint8_t*)(x))[2] << 8) | \
2568
                    ((uint8_t*)(x))[3])
2569
#define LE_16(x)  ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
2570
#define LE_32(x)  ((((uint8_t*)(x))[3] << 24) | \
2571
                   (((uint8_t*)(x))[2] << 16) | \
2572
                   (((uint8_t*)(x))[1] << 8) | \
2573
                    ((uint8_t*)(x))[0])
2574
#endif
2575

    
2576
extern unsigned int av_xiphlacing(unsigned char *s, unsigned int v);
2577

    
2578
#ifdef __cplusplus
2579
}
2580
#endif
2581

    
2582
#endif /* AVCODEC_H */