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#ifndef AVCODEC_H
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#define AVCODEC_H
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/**
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 * @file avcodec.h
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 * external api header.
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 */
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "avutil.h"
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#include <sys/types.h> /* size_t */
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//FIXME the following 2 really dont belong in here
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#define FFMPEG_VERSION_INT     0x000409
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#define FFMPEG_VERSION         "CVS"
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#define AV_STRINGIFY(s)        AV_TOSTRING(s)
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#define AV_TOSTRING(s) #s
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#define LIBAVCODEC_VERSION_INT ((51<<16)+(0<<8)+0)
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#define LIBAVCODEC_VERSION     51.0.0
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#define LIBAVCODEC_BUILD       LIBAVCODEC_VERSION_INT
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#define LIBAVCODEC_IDENT       "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)
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#define AV_NOPTS_VALUE int64_t_C(0x8000000000000000)
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#define AV_TIME_BASE 1000000
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#define AV_TIME_BASE_Q (AVRational){1, AV_TIME_BASE}
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enum CodecID {
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    CODEC_ID_NONE, 
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    CODEC_ID_MPEG1VIDEO,
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    CODEC_ID_MPEG2VIDEO, /* prefered ID for MPEG Video 1 or 2 decoding */
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    CODEC_ID_MPEG2VIDEO_XVMC,
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    CODEC_ID_H261,
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    CODEC_ID_H263,
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    CODEC_ID_RV10,
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    CODEC_ID_RV20,
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    CODEC_ID_MJPEG,
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    CODEC_ID_MJPEGB,
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    CODEC_ID_LJPEG,
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    CODEC_ID_SP5X,
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    CODEC_ID_MPEG4,
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    CODEC_ID_RAWVIDEO,
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    CODEC_ID_MSMPEG4V1,
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    CODEC_ID_MSMPEG4V2,
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    CODEC_ID_MSMPEG4V3,
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    CODEC_ID_WMV1,
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    CODEC_ID_WMV2,
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    CODEC_ID_H263P,
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    CODEC_ID_H263I,
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    CODEC_ID_FLV1,
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    CODEC_ID_SVQ1,
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    CODEC_ID_SVQ3,
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    CODEC_ID_DVVIDEO,
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    CODEC_ID_HUFFYUV,
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    CODEC_ID_CYUV,
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    CODEC_ID_H264,
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    CODEC_ID_INDEO3,
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    CODEC_ID_VP3,
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    CODEC_ID_THEORA,
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    CODEC_ID_ASV1,
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    CODEC_ID_ASV2,
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    CODEC_ID_FFV1,
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    CODEC_ID_4XM,
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    CODEC_ID_VCR1,
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    CODEC_ID_CLJR,
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    CODEC_ID_MDEC,
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    CODEC_ID_ROQ,
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    CODEC_ID_INTERPLAY_VIDEO,
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    CODEC_ID_XAN_WC3,
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    CODEC_ID_XAN_WC4,
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    CODEC_ID_RPZA,
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    CODEC_ID_CINEPAK,
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    CODEC_ID_WS_VQA,
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    CODEC_ID_MSRLE,
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    CODEC_ID_MSVIDEO1,
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    CODEC_ID_IDCIN,
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    CODEC_ID_8BPS,
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    CODEC_ID_SMC,
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    CODEC_ID_FLIC,
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    CODEC_ID_TRUEMOTION1,
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    CODEC_ID_VMDVIDEO,
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    CODEC_ID_MSZH,
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    CODEC_ID_ZLIB,
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    CODEC_ID_QTRLE,
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    CODEC_ID_SNOW,
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    CODEC_ID_TSCC,
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    CODEC_ID_ULTI,
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    CODEC_ID_QDRAW,
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    CODEC_ID_VIXL,
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    CODEC_ID_QPEG,
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    CODEC_ID_XVID,
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    CODEC_ID_PNG,
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    CODEC_ID_PPM,
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    CODEC_ID_PBM,
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    CODEC_ID_PGM,
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    CODEC_ID_PGMYUV,
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    CODEC_ID_PAM,
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    CODEC_ID_FFVHUFF,
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    CODEC_ID_RV30,
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    CODEC_ID_RV40,
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    CODEC_ID_VC9,
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    CODEC_ID_WMV3,
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    CODEC_ID_LOCO,
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    CODEC_ID_WNV1,
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    CODEC_ID_AASC,
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    CODEC_ID_INDEO2,
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    CODEC_ID_FRAPS,
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    CODEC_ID_TRUEMOTION2,
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    CODEC_ID_BMP,
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    /* various pcm "codecs" */
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    CODEC_ID_PCM_S16LE= 0x10000,
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    CODEC_ID_PCM_S16BE,
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    CODEC_ID_PCM_U16LE,
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    CODEC_ID_PCM_U16BE,
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    CODEC_ID_PCM_S8,
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    CODEC_ID_PCM_U8,
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    CODEC_ID_PCM_MULAW,
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    CODEC_ID_PCM_ALAW,
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    CODEC_ID_PCM_S32LE,
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    CODEC_ID_PCM_S32BE,
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    CODEC_ID_PCM_U32LE,
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    CODEC_ID_PCM_U32BE,
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    CODEC_ID_PCM_S24LE,
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    CODEC_ID_PCM_S24BE,
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    CODEC_ID_PCM_U24LE,
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    CODEC_ID_PCM_U24BE,
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    CODEC_ID_PCM_S24DAUD,
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    /* various adpcm codecs */
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    CODEC_ID_ADPCM_IMA_QT= 0x11000,
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    CODEC_ID_ADPCM_IMA_WAV,
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    CODEC_ID_ADPCM_IMA_DK3,
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    CODEC_ID_ADPCM_IMA_DK4,
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    CODEC_ID_ADPCM_IMA_WS,
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    CODEC_ID_ADPCM_IMA_SMJPEG,
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    CODEC_ID_ADPCM_MS,
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    CODEC_ID_ADPCM_4XM,
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    CODEC_ID_ADPCM_XA,
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    CODEC_ID_ADPCM_ADX,
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    CODEC_ID_ADPCM_EA,
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    CODEC_ID_ADPCM_G726,
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    CODEC_ID_ADPCM_CT,
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    CODEC_ID_ADPCM_SWF,
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    CODEC_ID_ADPCM_YAMAHA,
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    /* AMR */
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    CODEC_ID_AMR_NB= 0x12000,
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    CODEC_ID_AMR_WB,
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    /* RealAudio codecs*/
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    CODEC_ID_RA_144= 0x13000,
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    CODEC_ID_RA_288,
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    /* various DPCM codecs */
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    CODEC_ID_ROQ_DPCM= 0x14000,
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    CODEC_ID_INTERPLAY_DPCM,
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    CODEC_ID_XAN_DPCM,
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    CODEC_ID_SOL_DPCM,
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    CODEC_ID_MP2= 0x15000,
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    CODEC_ID_MP3, /* prefered ID for MPEG Audio layer 1, 2 or3 decoding */
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    CODEC_ID_AAC,
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    CODEC_ID_MPEG4AAC,
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    CODEC_ID_AC3,
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    CODEC_ID_DTS,
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    CODEC_ID_VORBIS,
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    CODEC_ID_DVAUDIO,
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    CODEC_ID_WMAV1,
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    CODEC_ID_WMAV2,
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    CODEC_ID_MACE3,
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    CODEC_ID_MACE6,
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    CODEC_ID_VMDAUDIO,
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    CODEC_ID_SONIC,
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    CODEC_ID_SONIC_LS,
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    CODEC_ID_FLAC,
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    CODEC_ID_MP3ADU,
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    CODEC_ID_MP3ON4,
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    CODEC_ID_SHORTEN,
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    CODEC_ID_ALAC,
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    CODEC_ID_WESTWOOD_SND1,
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    CODEC_ID_GSM,    
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    CODEC_ID_QDM2,
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    CODEC_ID_COOK,
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    CODEC_ID_OGGTHEORA= 0x16000, 
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    /* subtitle codecs */
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    CODEC_ID_DVD_SUBTITLE= 0x17000, 
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    CODEC_ID_DVB_SUBTITLE, 
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    CODEC_ID_MPEG2TS= 0x20000, /* _FAKE_ codec to indicate a raw MPEG2 transport
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                         stream (only used by libavformat) */
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};
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/* CODEC_ID_MP3LAME is absolete */
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#define CODEC_ID_MP3LAME CODEC_ID_MP3
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enum CodecType {
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    CODEC_TYPE_UNKNOWN = -1,
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    CODEC_TYPE_VIDEO,
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    CODEC_TYPE_AUDIO,
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    CODEC_TYPE_DATA,
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    CODEC_TYPE_SUBTITLE,
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};
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/**
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 * Pixel format. Notes: 
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 *
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 * PIX_FMT_RGBA32 is handled in an endian-specific manner. A RGBA
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 * color is put together as:
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 *  (A << 24) | (R << 16) | (G << 8) | B
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 * This is stored as BGRA on little endian CPU architectures and ARGB on
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 * big endian CPUs.
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 *
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 * When the pixel format is palettized RGB (PIX_FMT_PAL8), the palettized
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 * image data is stored in AVFrame.data[0]. The palette is transported in
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 * AVFrame.data[1] and, is 1024 bytes long (256 4-byte entries) and is
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 * formatted the same as in PIX_FMT_RGBA32 described above (i.e., it is
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 * also endian-specific). Note also that the individual RGB palette
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 * components stored in AVFrame.data[1] should be in the range 0..255.
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 * This is important as many custom PAL8 video codecs that were designed
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 * to run on the IBM VGA graphics adapter use 6-bit palette components.
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 */
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enum PixelFormat {
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    PIX_FMT_NONE= -1,
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    PIX_FMT_YUV420P,   ///< Planar YUV 4:2:0 (1 Cr & Cb sample per 2x2 Y samples)
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    PIX_FMT_YUV422,    ///< Packed pixel, Y0 Cb Y1 Cr 
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    PIX_FMT_RGB24,     ///< Packed pixel, 3 bytes per pixel, RGBRGB...
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    PIX_FMT_BGR24,     ///< Packed pixel, 3 bytes per pixel, BGRBGR...
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    PIX_FMT_YUV422P,   ///< Planar YUV 4:2:2 (1 Cr & Cb sample per 2x1 Y samples)
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    PIX_FMT_YUV444P,   ///< Planar YUV 4:4:4 (1 Cr & Cb sample per 1x1 Y samples)
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    PIX_FMT_RGBA32,    ///< Packed pixel, 4 bytes per pixel, BGRABGRA..., stored in cpu endianness
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    PIX_FMT_YUV410P,   ///< Planar YUV 4:1:0 (1 Cr & Cb sample per 4x4 Y samples)
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    PIX_FMT_YUV411P,   ///< Planar YUV 4:1:1 (1 Cr & Cb sample per 4x1 Y samples)
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    PIX_FMT_RGB565,    ///< always stored in cpu endianness 
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    PIX_FMT_RGB555,    ///< always stored in cpu endianness, most significant bit to 1 
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    PIX_FMT_GRAY8,
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    PIX_FMT_MONOWHITE, ///< 0 is white 
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    PIX_FMT_MONOBLACK, ///< 0 is black 
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    PIX_FMT_PAL8,      ///< 8 bit with RGBA palette 
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    PIX_FMT_YUVJ420P,  ///< Planar YUV 4:2:0 full scale (jpeg)
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    PIX_FMT_YUVJ422P,  ///< Planar YUV 4:2:2 full scale (jpeg)
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    PIX_FMT_YUVJ444P,  ///< Planar YUV 4:4:4 full scale (jpeg)
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    PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing(xvmc_render.h)
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    PIX_FMT_XVMC_MPEG2_IDCT,
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    PIX_FMT_UYVY422,   ///< Packed pixel, Cb Y0 Cr Y1 
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    PIX_FMT_UYVY411,   ///< Packed pixel, Cb Y0 Y1 Cr Y2 Y3
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    PIX_FMT_NB,
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};
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/* currently unused, may be used if 24/32 bits samples ever supported */
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enum SampleFormat {
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    SAMPLE_FMT_S16 = 0,         ///< signed 16 bits 
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    SAMPLE_FMT_S32,             ///< signed 32 bits 
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    SAMPLE_FMT_FLT,             ///< float
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    SAMPLE_FMT_DBL,             ///< double
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};
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/* in bytes */
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#define AVCODEC_MAX_AUDIO_FRAME_SIZE 131072
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/**
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 * Required number of additionally allocated bytes at the end of the input bitstream for decoding.
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 * this is mainly needed because some optimized bitstream readers read 
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 * 32 or 64 bit at once and could read over the end<br>
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 * Note, if the first 23 bits of the additional bytes are not 0 then damaged
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 * MPEG bitstreams could cause overread and segfault
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 */
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#define FF_INPUT_BUFFER_PADDING_SIZE 8
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/**
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 * minimum encoding buffer size.
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 * used to avoid some checks during header writing
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 */
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#define FF_MIN_BUFFER_SIZE 16384
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/* motion estimation type, EPZS by default */
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enum Motion_Est_ID {
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    ME_ZERO = 1,
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    ME_FULL,
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    ME_LOG,
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    ME_PHODS,
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    ME_EPZS,
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    ME_X1
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};
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enum AVDiscard{
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//we leave some space between them for extensions (drop some keyframes for intra only or drop just some bidir frames)
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    AVDISCARD_NONE   =-16, ///< discard nothing
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    AVDISCARD_DEFAULT=  0, ///< discard useless packets like 0 size packets in avi
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    AVDISCARD_NONREF =  8, ///< discard all non reference
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    AVDISCARD_BIDIR  = 16, ///< discard all bidirectional frames
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    AVDISCARD_NONKEY = 32, ///< discard all frames except keyframes
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    AVDISCARD_ALL    = 48, ///< discard all
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};
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typedef struct RcOverride{
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    int start_frame;
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    int end_frame;
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    int qscale; // if this is 0 then quality_factor will be used instead
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    float quality_factor;
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} RcOverride;
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/* only for ME compatiblity with old apps */
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extern int motion_estimation_method;
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#define FF_MAX_B_FRAMES 8
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/* encoding support
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   these flags can be passed in AVCodecContext.flags before initing 
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   Note: not everything is supported yet.
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*/
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#define CODEC_FLAG_QSCALE 0x0002  ///< use fixed qscale 
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#define CODEC_FLAG_4MV    0x0004  ///< 4 MV per MB allowed / Advanced prediction for H263
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#define CODEC_FLAG_QPEL   0x0010  ///< use qpel MC 
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#define CODEC_FLAG_GMC    0x0020  ///< use GMC 
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#define CODEC_FLAG_MV0    0x0040  ///< always try a MB with MV=<0,0> 
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#define CODEC_FLAG_PART   0x0080  ///< use data partitioning 
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/* parent program gurantees that the input for b-frame containing streams is not written to 
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   for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
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#define CODEC_FLAG_INPUT_PRESERVED 0x0100
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#define CODEC_FLAG_PASS1 0x0200   ///< use internal 2pass ratecontrol in first  pass mode 
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#define CODEC_FLAG_PASS2 0x0400   ///< use internal 2pass ratecontrol in second pass mode 
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#define CODEC_FLAG_EXTERN_HUFF 0x1000 ///< use external huffman table (for mjpeg) 
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#define CODEC_FLAG_GRAY  0x2000   ///< only decode/encode grayscale 
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#define CODEC_FLAG_EMU_EDGE 0x4000///< don't draw edges
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#define CODEC_FLAG_PSNR           0x8000 ///< error[?] variables will be set during encoding 
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#define CODEC_FLAG_TRUNCATED  0x00010000 /** input bitstream might be truncated at a random location instead 
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                                            of only at frame boundaries */
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#define CODEC_FLAG_NORMALIZE_AQP  0x00020000 ///< normalize adaptive quantization 
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#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< use interlaced dct 
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#define CODEC_FLAG_LOW_DELAY      0x00080000 ///< force low delay
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#define CODEC_FLAG_ALT_SCAN       0x00100000 ///< use alternate scan 
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#define CODEC_FLAG_TRELLIS_QUANT  0x00200000 ///< use trellis quantization 
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#define CODEC_FLAG_GLOBAL_HEADER  0x00400000 ///< place global headers in extradata instead of every keyframe 
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#define CODEC_FLAG_BITEXACT       0x00800000 ///< use only bitexact stuff (except (i)dct) 
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/* Fx : Flag for h263+ extra options */
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#define CODEC_FLAG_H263P_AIC      0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction (remove this)
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#define CODEC_FLAG_AC_PRED        0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction
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#define CODEC_FLAG_H263P_UMV      0x02000000 ///< Unlimited motion vector  
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#define CODEC_FLAG_CBP_RD         0x04000000 ///< use rate distortion optimization for cbp
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#define CODEC_FLAG_QP_RD          0x08000000 ///< use rate distortion optimization for qp selectioon
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#define CODEC_FLAG_H263P_AIV      0x00000008 ///< H263 Alternative inter vlc
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#define CODEC_FLAG_OBMC           0x00000001 ///< OBMC
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#define CODEC_FLAG_LOOP_FILTER    0x00000800 ///< loop filter
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#define CODEC_FLAG_H263P_SLICE_STRUCT 0x10000000
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#define CODEC_FLAG_INTERLACED_ME  0x20000000 ///< interlaced motion estimation
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#define CODEC_FLAG_SVCD_SCAN_OFFSET 0x40000000 ///< will reserve space for SVCD scan offset user data
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#define CODEC_FLAG_CLOSED_GOP     0x80000000
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#define CODEC_FLAG2_FAST          0x00000001 ///< allow non spec compliant speedup tricks
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#define CODEC_FLAG2_STRICT_GOP    0x00000002 ///< strictly enforce GOP size
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#define CODEC_FLAG2_NO_OUTPUT     0x00000004 ///< skip bitstream encoding
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#define CODEC_FLAG2_LOCAL_HEADER  0x00000008 ///< place global headers at every keyframe instead of in extradata
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/* Unsupported options :
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 *                 Syntax Arithmetic coding (SAC)
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 *                 Reference Picture Selection
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 *                 Independant Segment Decoding */
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/* /Fx */
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/* codec capabilities */
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#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< decoder can use draw_horiz_band callback 
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/**
372
 * Codec uses get_buffer() for allocating buffers.
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 * direct rendering method 1
374
 */
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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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/** 
383
 * codec has a non zero delay and needs to be feeded with NULL at the end to get the delayed data.
384
 * if this is not set, the codec is guranteed to never be feeded with NULL data
385
 */
386
#define CODEC_CAP_DELAY           0x0020
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//the following defines may change, don't expect compatibility if you use them
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#define MB_TYPE_INTRA4x4   0x0001
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#define MB_TYPE_INTRA16x16 0x0002 //FIXME h264 specific
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#define MB_TYPE_INTRA_PCM  0x0004 //FIXME h264 specific
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#define MB_TYPE_16x16      0x0008
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#define MB_TYPE_16x8       0x0010
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#define MB_TYPE_8x16       0x0020
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#define MB_TYPE_8x8        0x0040
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#define MB_TYPE_INTERLACED 0x0080
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#define MB_TYPE_DIRECT2     0x0100 //FIXME
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#define MB_TYPE_ACPRED     0x0200
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#define MB_TYPE_GMC        0x0400
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#define MB_TYPE_SKIP       0x0800
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#define MB_TYPE_P0L0       0x1000
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#define MB_TYPE_P1L0       0x2000
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#define MB_TYPE_P0L1       0x4000
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#define MB_TYPE_P1L1       0x8000
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#define MB_TYPE_L0         (MB_TYPE_P0L0 | MB_TYPE_P1L0)
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#define MB_TYPE_L1         (MB_TYPE_P0L1 | MB_TYPE_P1L1)
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#define MB_TYPE_L0L1       (MB_TYPE_L0   | MB_TYPE_L1)
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#define MB_TYPE_QUANT      0x00010000
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#define MB_TYPE_CBP        0x00020000
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//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...)
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412
/**
413
 * Pan Scan area.
414
 * this specifies the area which should be displayed. Note there may be multiple such areas for one frame
415
 */
416
typedef struct AVPanScan{
417
    /**
418
     * id.
419
     * - encoding: set by user.
420
     * - decoding: set by lavc
421
     */
422
    int id;
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424
    /**
425
     * width and height in 1/16 pel
426
     * - encoding: set by user.
427
     * - decoding: set by lavc
428
     */
429
    int width;
430
    int height;
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432
    /**
433
     * position of the top left corner in 1/16 pel for up to 3 fields/frames.
434
     * - encoding: set by user.
435
     * - decoding: set by lavc
436
     */
437
    int16_t position[3][2];
438
}AVPanScan;
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440
#define FF_COMMON_FRAME \
441
    /**\
442
     * pointer to the picture planes.\
443
     * this might be different from the first allocated byte\
444
     * - encoding: \
445
     * - decoding: \
446
     */\
447
    uint8_t *data[4];\
448
    int linesize[4];\
449
    /**\
450
     * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
451
     * this isn't used by lavc unless the default get/release_buffer() is used\
452
     * - encoding: \
453
     * - decoding: \
454
     */\
455
    uint8_t *base[4];\
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    /**\
457
     * 1 -> keyframe, 0-> not\
458
     * - encoding: set by lavc\
459
     * - decoding: set by lavc\
460
     */\
461
    int key_frame;\
462
\
463
    /**\
464
     * picture type of the frame, see ?_TYPE below.\
465
     * - encoding: set by lavc for coded_picture (and set by user for input)\
466
     * - decoding: set by lavc\
467
     */\
468
    int pict_type;\
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\
470
    /**\
471
     * presentation timestamp in time_base units (time when frame should be shown to user)\
472
     * if AV_NOPTS_VALUE then frame_rate = 1/time_base will be assumed\
473
     * - encoding: MUST be set by user\
474
     * - decoding: set by lavc\
475
     */\
476
    int64_t pts;\
477
\
478
    /**\
479
     * picture number in bitstream order.\
480
     * - encoding: set by\
481
     * - decoding: set by lavc\
482
     */\
483
    int coded_picture_number;\
484
    /**\
485
     * picture number in display order.\
486
     * - encoding: set by\
487
     * - decoding: set by lavc\
488
     */\
489
    int display_picture_number;\
490
\
491
    /**\
492
     * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
493
     * - encoding: set by lavc for coded_picture (and set by user for input)\
494
     * - decoding: set by lavc\
495
     */\
496
    int quality; \
497
\
498
    /**\
499
     * buffer age (1->was last buffer and dint change, 2->..., ...).\
500
     * set to INT_MAX if the buffer has not been used yet \
501
     * - encoding: unused\
502
     * - decoding: MUST be set by get_buffer()\
503
     */\
504
    int age;\
505
\
506
    /**\
507
     * is this picture used as reference\
508
     * - encoding: unused\
509
     * - decoding: set by lavc (before get_buffer() call))\
510
     */\
511
    int reference;\
512
\
513
    /**\
514
     * QP table\
515
     * - encoding: unused\
516
     * - decoding: set by lavc\
517
     */\
518
    int8_t *qscale_table;\
519
    /**\
520
     * QP store stride\
521
     * - encoding: unused\
522
     * - decoding: set by lavc\
523
     */\
524
    int qstride;\
525
\
526
    /**\
527
     * mbskip_table[mb]>=1 if MB didnt change\
528
     * stride= mb_width = (width+15)>>4\
529
     * - encoding: unused\
530
     * - decoding: set by lavc\
531
     */\
532
    uint8_t *mbskip_table;\
533
\
534
    /**\
535
     * Motion vector table.\
536
     * @code\
537
     * example:\
538
     * int mv_sample_log2= 4 - motion_subsample_log2;\
539
     * int mb_width= (width+15)>>4;\
540
     * int mv_stride= (mb_width << mv_sample_log2) + 1;\
541
     * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y];\
542
     * @endcode\
543
     * - encoding: set by user\
544
     * - decoding: set by lavc\
545
     */\
546
    int16_t (*motion_val[2])[2];\
547
\
548
    /**\
549
     * Macroblock type table\
550
     * mb_type_base + mb_width + 2\
551
     * - encoding: set by user\
552
     * - decoding: set by lavc\
553
     */\
554
    uint32_t *mb_type;\
555
\
556
    /**\
557
     * log2 of the size of the block which a single vector in motion_val represents: \
558
     * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2)\
559
     * - encoding: unused\
560
     * - decoding: set by lavc\
561
     */\
562
    uint8_t motion_subsample_log2;\
563
\
564
    /**\
565
     * for some private data of the user\
566
     * - encoding: unused\
567
     * - decoding: set by user\
568
     */\
569
    void *opaque;\
570
\
571
    /**\
572
     * error\
573
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
574
     * - decoding: unused\
575
     */\
576
    uint64_t error[4];\
577
\
578
    /**\
579
     * type of the buffer (to keep track of who has to dealloc data[*])\
580
     * - encoding: set by the one who allocs it\
581
     * - decoding: set by the one who allocs it\
582
     * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
583
     */\
584
    int type;\
585
    \
586
    /**\
587
     * when decoding, this signal how much the picture must be delayed.\
588
     * extra_delay = repeat_pict / (2*fps)\
589
     * - encoding: unused\
590
     * - decoding: set by lavc\
591
     */\
592
    int repeat_pict;\
593
    \
594
    /**\
595
     * \
596
     */\
597
    int qscale_type;\
598
    \
599
    /**\
600
     * The content of the picture is interlaced.\
601
     * - encoding: set by user\
602
     * - decoding: set by lavc (default 0)\
603
     */\
604
    int interlaced_frame;\
605
    \
606
    /**\
607
     * if the content is interlaced, is top field displayed first.\
608
     * - encoding: set by user\
609
     * - decoding: set by lavc\
610
     */\
611
    int top_field_first;\
612
    \
613
    /**\
614
     * Pan scan.\
615
     * - encoding: set by user\
616
     * - decoding: set by lavc\
617
     */\
618
    AVPanScan *pan_scan;\
619
    \
620
    /**\
621
     * tell user application that palette has changed from previous frame.\
622
     * - encoding: ??? (no palette-enabled encoder yet)\
623
     * - decoding: set by lavc (default 0)\
624
     */\
625
    int palette_has_changed;\
626
    \
627
    /**\
628
     * Codec suggestion on buffer type if != 0\
629
     * - encoding: unused\
630
     * - decoding: set by lavc (before get_buffer() call))\
631
     */\
632
    int buffer_hints;\
633
\
634
    /**\
635
     * DCT coeffitients\
636
     * - encoding: unused\
637
     * - decoding: set by lavc\
638
     */\
639
    short *dct_coeff;\
640
\
641
    /**\
642
     * Motion referece frame index\
643
     * - encoding: set by user\
644
     * - decoding: set by lavc\
645
     */\
646
    int8_t *ref_index[2];
647

    
648
#define FF_QSCALE_TYPE_MPEG1        0
649
#define FF_QSCALE_TYPE_MPEG2        1
650

    
651
#define FF_BUFFER_TYPE_INTERNAL 1
652
#define FF_BUFFER_TYPE_USER     2 ///< Direct rendering buffers (image is (de)allocated by user)
653
#define FF_BUFFER_TYPE_SHARED   4 ///< buffer from somewhere else, don't dealloc image (data/base), all other tables are not shared
654
#define FF_BUFFER_TYPE_COPY     8 ///< just a (modified) copy of some other buffer, don't dealloc anything
655

    
656

    
657
#define FF_I_TYPE 1 // Intra
658
#define FF_P_TYPE 2 // Predicted
659
#define FF_B_TYPE 3 // Bi-dir predicted
660
#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
661
#define FF_SI_TYPE 5
662
#define FF_SP_TYPE 6
663

    
664
#define FF_BUFFER_HINTS_VALID    0x01 // Buffer hints value is meaningful (if 0 ignore)
665
#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
666
#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
667
#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
668

    
669
/**
670
 * Audio Video Frame.
671
 */
672
typedef struct AVFrame {
673
    FF_COMMON_FRAME
674
} AVFrame;
675

    
676
#define DEFAULT_FRAME_RATE_BASE 1001000
677

    
678
/**
679
 * Used by av_log
680
 */
681
typedef struct AVCLASS AVClass;
682
struct AVCLASS {
683
    const char* class_name;
684
    const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext
685
                                        or AVFormatContext, which begin with an AVClass.
686
                                        Needed because av_log is in libavcodec and has no visibility
687
                                        of AVIn/OutputFormat */
688
    struct AVOption *option;
689
};
690

    
691
/**
692
 * main external api structure.
693
 */
694
typedef struct AVCodecContext {
695
    /**
696
     * Info on struct for av_log
697
     * - set by avcodec_alloc_context
698
     */
699
    AVClass *av_class;
700
    /**
701
     * the average bitrate.
702
     * - encoding: set by user. unused for constant quantizer encoding
703
     * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream 
704
     */
705
    int bit_rate;
706

    
707
    /**
708
     * number of bits the bitstream is allowed to diverge from the reference.
709
     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
710
     * - encoding: set by user. unused for constant quantizer encoding
711
     * - decoding: unused
712
     */
713
    int bit_rate_tolerance; 
714

    
715
    /**
716
     * CODEC_FLAG_*.
717
     * - encoding: set by user.
718
     * - decoding: set by user.
719
     */
720
    int flags;
721

    
722
    /**
723
     * some codecs needs additionnal format info. It is stored here
724
     * - encoding: set by user. 
725
     * - decoding: set by lavc. (FIXME is this ok?)
726
     */
727
    int sub_id;
728

    
729
    /**
730
     * motion estimation algorithm used for video coding.
731
     * - encoding: MUST be set by user.
732
     * - decoding: unused
733
     */
734
    int me_method;
735

    
736
    /**
737
     * some codecs need / can use extra-data like huffman tables.
738
     * mjpeg: huffman tables
739
     * rv10: additional flags
740
     * mpeg4: global headers (they can be in the bitstream or here)
741
     * the allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
742
     * then extradata_size to avoid prolems if its read with the bitstream reader
743
     * the bytewise contents of extradata must not depend on the architecture or cpu endianness
744
     * - encoding: set/allocated/freed by lavc.
745
     * - decoding: set/allocated/freed by user.
746
     */
747
    void *extradata;
748
    int extradata_size;
749
    
750
    /**
751
     * this is the fundamental unit of time (in seconds) in terms
752
     * of which frame timestamps are represented. for fixed-fps content,
753
     * timebase should be 1/framerate and timestamp increments should be
754
     * identically 1.
755
     * - encoding: MUST be set by user
756
     * - decoding: set by lavc.
757
     */
758
    AVRational time_base;
759
    
760
    /* video only */
761
    /**
762
     * picture width / height.
763
     * - encoding: MUST be set by user. 
764
     * - decoding: set by lavc.
765
     * Note, for compatibility its possible to set this instead of 
766
     * coded_width/height before decoding
767
     */
768
    int width, height;
769
    
770
#define FF_ASPECT_EXTENDED 15
771

    
772
    /**
773
     * the number of pictures in a group of pitures, or 0 for intra_only.
774
     * - encoding: set by user.
775
     * - decoding: unused
776
     */
777
    int gop_size;
778

    
779
    /**
780
     * pixel format, see PIX_FMT_xxx.
781
     * - encoding: set by user.
782
     * - decoding: set by lavc.
783
     */
784
    enum PixelFormat pix_fmt;
785
 
786
    /**
787
     * Frame rate emulation. If not zero lower layer (i.e. format handler) 
788
     * has to read frames at native frame rate.
789
     * - encoding: set by user.
790
     * - decoding: unused.
791
     */
792
    int rate_emu;
793
       
794
    /**
795
     * if non NULL, 'draw_horiz_band' is called by the libavcodec
796
     * decoder to draw an horizontal band. It improve cache usage. Not
797
     * all codecs can do that. You must check the codec capabilities
798
     * before
799
     * - encoding: unused
800
     * - decoding: set by user.
801
     * @param height the height of the slice
802
     * @param y the y position of the slice
803
     * @param type 1->top field, 2->bottom field, 3->frame
804
     * @param offset offset into the AVFrame.data from which the slice should be read
805
     */
806
    void (*draw_horiz_band)(struct AVCodecContext *s,
807
                            const AVFrame *src, int offset[4],
808
                            int y, int type, int height);
809

    
810
    /* audio only */
811
    int sample_rate; ///< samples per sec 
812
    int channels;
813

    
814
    /**
815
     * audio sample format.
816
     * - encoding: set by user.
817
     * - decoding: set by lavc.
818
     */
819
    enum SampleFormat sample_fmt;  ///< sample format, currenly unused 
820

    
821
    /* the following data should not be initialized */
822
    /**
823
     * samples per packet. initialized when calling 'init' 
824
     */
825
    int frame_size;
826
    int frame_number;   ///< audio or video frame number 
827
    int real_pict_num;  ///< returns the real picture number of previous encoded frame 
828
    
829
    /**
830
     * number of frames the decoded output will be delayed relative to 
831
     * the encoded input.
832
     * - encoding: set by lavc.
833
     * - decoding: unused
834
     */
835
    int delay;
836
    
837
    /* - encoding parameters */
838
    float qcompress;  ///< amount of qscale change between easy & hard scenes (0.0-1.0)
839
    float qblur;      ///< amount of qscale smoothing over time (0.0-1.0) 
840
    
841
    /**
842
     * minimum quantizer.
843
     * - encoding: set by user.
844
     * - decoding: unused
845
     */
846
    int qmin;
847

    
848
    /**
849
     * maximum quantizer.
850
     * - encoding: set by user.
851
     * - decoding: unused
852
     */
853
    int qmax;
854

    
855
    /**
856
     * maximum quantizer difference etween frames.
857
     * - encoding: set by user.
858
     * - decoding: unused
859
     */
860
    int max_qdiff;
861

    
862
    /**
863
     * maximum number of b frames between non b frames.
864
     * note: the output will be delayed by max_b_frames+1 relative to the input
865
     * - encoding: set by user.
866
     * - decoding: unused
867
     */
868
    int max_b_frames;
869

    
870
    /**
871
     * qscale factor between ip and b frames.
872
     * - encoding: set by user.
873
     * - decoding: unused
874
     */
875
    float b_quant_factor;
876
    
877
    /** obsolete FIXME remove */
878
    int rc_strategy;
879
    int b_frame_strategy;
880

    
881
    /**
882
     * hurry up amount.
883
     * deprecated in favor of skip_idct and skip_frame
884
     * - encoding: unused
885
     * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
886
     */
887
    int hurry_up;
888
    
889
    struct AVCodec *codec;
890
    
891
    void *priv_data;
892

    
893
    /* unused, FIXME remove*/
894
    int rtp_mode;
895
    
896
    int rtp_payload_size;   /* The size of the RTP payload: the coder will  */
897
                            /* do it's best to deliver a chunk with size    */
898
                            /* below rtp_payload_size, the chunk will start */
899
                            /* with a start code on some codecs like H.263  */
900
                            /* This doesn't take account of any particular  */
901
                            /* headers inside the transmited RTP payload    */
902

    
903
    
904
    /* The RTP callback: This function is called   */
905
    /* every time the encoder has a packet to send */
906
    /* Depends on the encoder if the data starts   */
907
    /* with a Start Code (it should) H.263 does.   */
908
    /* mb_nb contains the number of macroblocks    */
909
    /* encoded in the RTP payload                  */
910
    void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb); 
911

    
912
    /* statistics, used for 2-pass encoding */
913
    int mv_bits;
914
    int header_bits;
915
    int i_tex_bits;
916
    int p_tex_bits;
917
    int i_count;
918
    int p_count;
919
    int skip_count;
920
    int misc_bits;
921
    
922
    /**
923
     * number of bits used for the previously encoded frame.
924
     * - encoding: set by lavc
925
     * - decoding: unused
926
     */
927
    int frame_bits;
928

    
929
    /**
930
     * private data of the user, can be used to carry app specific stuff.
931
     * - encoding: set by user
932
     * - decoding: set by user
933
     */
934
    void *opaque;
935

    
936
    char codec_name[32];
937
    enum CodecType codec_type; /* see CODEC_TYPE_xxx */
938
    enum CodecID codec_id; /* see CODEC_ID_xxx */
939
    
940
    /**
941
     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
942
     * this is used to workaround some encoder bugs
943
     * - encoding: set by user, if not then the default based on codec_id will be used
944
     * - decoding: set by user, will be converted to upper case by lavc during init
945
     */
946
    unsigned int codec_tag;
947
    
948
    /**
949
     * workaround bugs in encoders which sometimes cannot be detected automatically.
950
     * - encoding: set by user
951
     * - decoding: set by user
952
     */
953
    int workaround_bugs;
954
#define FF_BUG_AUTODETECT       1  ///< autodetection
955
#define FF_BUG_OLD_MSMPEG4      2
956
#define FF_BUG_XVID_ILACE       4
957
#define FF_BUG_UMP4             8
958
#define FF_BUG_NO_PADDING       16
959
#define FF_BUG_AMV              32
960
#define FF_BUG_AC_VLC           0  ///< will be removed, libavcodec can now handle these non compliant files by default
961
#define FF_BUG_QPEL_CHROMA      64
962
#define FF_BUG_STD_QPEL         128
963
#define FF_BUG_QPEL_CHROMA2     256
964
#define FF_BUG_DIRECT_BLOCKSIZE 512
965
#define FF_BUG_EDGE             1024
966
#define FF_BUG_HPEL_CHROMA      2048
967
#define FF_BUG_DC_CLIP          4096
968
#define FF_BUG_MS               8192 ///< workaround various bugs in microsofts broken decoders
969
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
970
        
971
    /**
972
     * luma single coeff elimination threshold.
973
     * - encoding: set by user
974
     * - decoding: unused
975
     */
976
    int luma_elim_threshold;
977
    
978
    /**
979
     * chroma single coeff elimination threshold.
980
     * - encoding: set by user
981
     * - decoding: unused
982
     */
983
    int chroma_elim_threshold;
984
    
985
    /**
986
     * strictly follow the std (MPEG4, ...).
987
     * - encoding: set by user
988
     * - decoding: unused
989
     */
990
    int strict_std_compliance;
991
#define FF_COMPLIANCE_VERY_STRICT   2 ///< strictly conform to a older more strict version of the spec or reference software
992
#define FF_COMPLIANCE_STRICT        1 ///< strictly conform to all the things in the spec no matter what consequences
993
#define FF_COMPLIANCE_NORMAL        0
994
#define FF_COMPLIANCE_INOFFICIAL   -1 ///< allow inofficial extensions
995
#define FF_COMPLIANCE_EXPERIMENTAL -2 ///< allow non standarized experimental things
996

    
997
    /**
998
     * qscale offset between ip and b frames.
999
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1000
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
1001
     * - encoding: set by user.
1002
     * - decoding: unused
1003
     */
1004
    float b_quant_offset;
1005
    
1006
    /**
1007
     * error resilience higher values will detect more errors but may missdetect
1008
     * some more or less valid parts as errors.
1009
     * - encoding: unused
1010
     * - decoding: set by user
1011
     */
1012
    int error_resilience;
1013
#define FF_ER_CAREFUL         1
1014
#define FF_ER_COMPLIANT       2
1015
#define FF_ER_AGGRESSIVE      3
1016
#define FF_ER_VERY_AGGRESSIVE 4
1017
    
1018
    /**
1019
     * called at the beginning of each frame to get a buffer for it.
1020
     * if pic.reference is set then the frame will be read later by lavc
1021
     * avcodec_align_dimensions() should be used to find the required width and
1022
     * height, as they normally need to be rounded up to the next multiple of 16
1023
     * - encoding: unused
1024
     * - decoding: set by lavc, user can override
1025
     */
1026
    int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
1027
    
1028
    /**
1029
     * called to release buffers which where allocated with get_buffer.
1030
     * a released buffer can be reused in get_buffer()
1031
     * pic.data[*] must be set to NULL
1032
     * - encoding: unused
1033
     * - decoding: set by lavc, user can override
1034
     */
1035
    void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
1036

    
1037
    /**
1038
     * if 1 the stream has a 1 frame delay during decoding.
1039
     * - encoding: set by lavc
1040
     * - decoding: set by lavc
1041
     */
1042
    int has_b_frames;
1043

    
1044
    /**
1045
     * number of bytes per packet if constant and known or 0
1046
     * used by some WAV based audio codecs
1047
     */
1048
    int block_align;
1049
    
1050
    int parse_only; /* - decoding only: if true, only parsing is done
1051
                       (function avcodec_parse_frame()). The frame
1052
                       data is returned. Only MPEG codecs support this now. */
1053
    
1054
    /**
1055
     * 0-> h263 quant 1-> mpeg quant.
1056
     * - encoding: set by user.
1057
     * - decoding: unused
1058
     */
1059
    int mpeg_quant;
1060
    
1061
    /**
1062
     * pass1 encoding statistics output buffer.
1063
     * - encoding: set by lavc
1064
     * - decoding: unused
1065
     */
1066
    char *stats_out;
1067
    
1068
    /**
1069
     * pass2 encoding statistics input buffer.
1070
     * concatenated stuff from stats_out of pass1 should be placed here
1071
     * - encoding: allocated/set/freed by user
1072
     * - decoding: unused
1073
     */
1074
    char *stats_in;
1075
    
1076
    /**
1077
     * ratecontrol qmin qmax limiting method.
1078
     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
1079
     * - encoding: set by user.
1080
     * - decoding: unused
1081
     */
1082
    float rc_qsquish;
1083

    
1084
    float rc_qmod_amp;
1085
    int rc_qmod_freq;
1086
    
1087
    /**
1088
     * ratecontrol override, see RcOverride.
1089
     * - encoding: allocated/set/freed by user.
1090
     * - decoding: unused
1091
     */
1092
    RcOverride *rc_override;
1093
    int rc_override_count;
1094
    
1095
    /**
1096
     * rate control equation.
1097
     * - encoding: set by user
1098
     * - decoding: unused
1099
     */
1100
    char *rc_eq;
1101
    
1102
    /**
1103
     * maximum bitrate.
1104
     * - encoding: set by user.
1105
     * - decoding: unused
1106
     */
1107
    int rc_max_rate;
1108
    
1109
    /**
1110
     * minimum bitrate.
1111
     * - encoding: set by user.
1112
     * - decoding: unused
1113
     */
1114
    int rc_min_rate;
1115
    
1116
    /**
1117
     * decoder bitstream buffer size.
1118
     * - encoding: set by user.
1119
     * - decoding: unused
1120
     */
1121
    int rc_buffer_size;
1122
    float rc_buffer_aggressivity;
1123

    
1124
    /**
1125
     * qscale factor between p and i frames.
1126
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1127
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
1128
     * - encoding: set by user.
1129
     * - decoding: unused
1130
     */
1131
    float i_quant_factor;
1132
    
1133
    /**
1134
     * qscale offset between p and i frames.
1135
     * - encoding: set by user.
1136
     * - decoding: unused
1137
     */
1138
    float i_quant_offset;
1139
    
1140
    /**
1141
     * initial complexity for pass1 ratecontrol.
1142
     * - encoding: set by user.
1143
     * - decoding: unused
1144
     */
1145
    float rc_initial_cplx;
1146

    
1147
    /**
1148
     * dct algorithm, see FF_DCT_* below.
1149
     * - encoding: set by user
1150
     * - decoding: unused
1151
     */
1152
    int dct_algo;
1153
#define FF_DCT_AUTO    0
1154
#define FF_DCT_FASTINT 1
1155
#define FF_DCT_INT     2
1156
#define FF_DCT_MMX     3
1157
#define FF_DCT_MLIB    4
1158
#define FF_DCT_ALTIVEC 5
1159
#define FF_DCT_FAAN    6
1160
    
1161
    /**
1162
     * luminance masking (0-> disabled).
1163
     * - encoding: set by user
1164
     * - decoding: unused
1165
     */
1166
    float lumi_masking;
1167
    
1168
    /**
1169
     * temporary complexity masking (0-> disabled).
1170
     * - encoding: set by user
1171
     * - decoding: unused
1172
     */
1173
    float temporal_cplx_masking;
1174
    
1175
    /**
1176
     * spatial complexity masking (0-> disabled).
1177
     * - encoding: set by user
1178
     * - decoding: unused
1179
     */
1180
    float spatial_cplx_masking;
1181
    
1182
    /**
1183
     * p block masking (0-> disabled).
1184
     * - encoding: set by user
1185
     * - decoding: unused
1186
     */
1187
    float p_masking;
1188

    
1189
    /**
1190
     * darkness masking (0-> disabled).
1191
     * - encoding: set by user
1192
     * - decoding: unused
1193
     */
1194
    float dark_masking;
1195
    
1196
    
1197
    /* for binary compatibility */
1198
    int unused;
1199
    
1200
    /**
1201
     * idct algorithm, see FF_IDCT_* below.
1202
     * - encoding: set by user
1203
     * - decoding: set by user
1204
     */
1205
    int idct_algo;
1206
#define FF_IDCT_AUTO         0
1207
#define FF_IDCT_INT          1
1208
#define FF_IDCT_SIMPLE       2
1209
#define FF_IDCT_SIMPLEMMX    3
1210
#define FF_IDCT_LIBMPEG2MMX  4
1211
#define FF_IDCT_PS2          5
1212
#define FF_IDCT_MLIB         6
1213
#define FF_IDCT_ARM          7
1214
#define FF_IDCT_ALTIVEC      8
1215
#define FF_IDCT_SH4          9
1216
#define FF_IDCT_SIMPLEARM    10
1217
#define FF_IDCT_H264         11
1218
#define FF_IDCT_VP3          12
1219
#define FF_IDCT_IPP          13
1220
#define FF_IDCT_XVIDMMX      14
1221

    
1222
    /**
1223
     * slice count.
1224
     * - encoding: set by lavc
1225
     * - decoding: set by user (or 0)
1226
     */
1227
    int slice_count;
1228
    /**
1229
     * slice offsets in the frame in bytes.
1230
     * - encoding: set/allocated by lavc
1231
     * - decoding: set/allocated by user (or NULL)
1232
     */
1233
    int *slice_offset;
1234

    
1235
    /**
1236
     * error concealment flags.
1237
     * - encoding: unused
1238
     * - decoding: set by user
1239
     */
1240
    int error_concealment;
1241
#define FF_EC_GUESS_MVS   1
1242
#define FF_EC_DEBLOCK     2
1243

    
1244
    /**
1245
     * dsp_mask could be add used to disable unwanted CPU features
1246
     * CPU features (i.e. MMX, SSE. ...)
1247
     *
1248
     * with FORCE flag you may instead enable given CPU features
1249
     * (Dangerous: usable in case of misdetection, improper usage however will
1250
     * result into program crash)
1251
     */
1252
    unsigned dsp_mask;
1253
#define FF_MM_FORCE        0x80000000 /* force usage of selected flags (OR) */
1254
    /* lower 16 bits - CPU features */
1255
#ifdef HAVE_MMX
1256
#define FF_MM_MMX        0x0001 /* standard MMX */
1257
#define FF_MM_3DNOW        0x0004 /* AMD 3DNOW */
1258
#define FF_MM_MMXEXT        0x0002 /* SSE integer functions or AMD MMX ext */
1259
#define FF_MM_SSE        0x0008 /* SSE functions */
1260
#define FF_MM_SSE2        0x0010 /* PIV SSE2 functions */
1261
#define FF_MM_3DNOWEXT        0x0020 /* AMD 3DNowExt */
1262
#endif /* HAVE_MMX */
1263
#ifdef HAVE_IWMMXT
1264
#define FF_MM_IWMMXT        0x0100 /* XScale IWMMXT */
1265
#endif /* HAVE_IWMMXT */
1266

    
1267
    /**
1268
     * bits per sample/pixel from the demuxer (needed for huffyuv).
1269
     * - encoding: set by lavc
1270
     * - decoding: set by user
1271
     */
1272
     int bits_per_sample;
1273
    
1274
    /**
1275
     * prediction method (needed for huffyuv).
1276
     * - encoding: set by user
1277
     * - decoding: unused
1278
     */
1279
     int prediction_method;
1280
#define FF_PRED_LEFT   0
1281
#define FF_PRED_PLANE  1
1282
#define FF_PRED_MEDIAN 2
1283
    
1284
    /**
1285
     * sample aspect ratio (0 if unknown).
1286
     * numerator and denominator must be relative prime and smaller then 256 for some video standards
1287
     * - encoding: set by user.
1288
     * - decoding: set by lavc.
1289
     */
1290
    AVRational sample_aspect_ratio;
1291

    
1292
    /**
1293
     * the picture in the bitstream.
1294
     * - encoding: set by lavc
1295
     * - decoding: set by lavc
1296
     */
1297
    AVFrame *coded_frame;
1298

    
1299
    /**
1300
     * debug.
1301
     * - encoding: set by user.
1302
     * - decoding: set by user.
1303
     */
1304
    int debug;
1305
#define FF_DEBUG_PICT_INFO 1
1306
#define FF_DEBUG_RC        2
1307
#define FF_DEBUG_BITSTREAM 4
1308
#define FF_DEBUG_MB_TYPE   8
1309
#define FF_DEBUG_QP        16
1310
#define FF_DEBUG_MV        32
1311
#define FF_DEBUG_DCT_COEFF 0x00000040
1312
#define FF_DEBUG_SKIP      0x00000080
1313
#define FF_DEBUG_STARTCODE 0x00000100
1314
#define FF_DEBUG_PTS       0x00000200
1315
#define FF_DEBUG_ER        0x00000400
1316
#define FF_DEBUG_MMCO      0x00000800
1317
#define FF_DEBUG_BUGS      0x00001000
1318
#define FF_DEBUG_VIS_QP    0x00002000
1319
#define FF_DEBUG_VIS_MB_TYPE 0x00004000
1320
    
1321
    /**
1322
     * debug.
1323
     * - encoding: set by user.
1324
     * - decoding: set by user.
1325
     */
1326
    int debug_mv;
1327
#define FF_DEBUG_VIS_MV_P_FOR  0x00000001 //visualize forward predicted MVs of P frames
1328
#define FF_DEBUG_VIS_MV_B_FOR  0x00000002 //visualize forward predicted MVs of B frames
1329
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1330

    
1331
    /**
1332
     * error.
1333
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1334
     * - decoding: unused
1335
     */
1336
    uint64_t error[4];
1337
    
1338
    /**
1339
     * minimum MB quantizer.
1340
     * - encoding: unused
1341
     * - decoding: unused
1342
     */
1343
    int mb_qmin;
1344

    
1345
    /**
1346
     * maximum MB quantizer.
1347
     * - encoding: unused
1348
     * - decoding: unused
1349
     */
1350
    int mb_qmax;
1351
    
1352
    /**
1353
     * motion estimation compare function.
1354
     * - encoding: set by user.
1355
     * - decoding: unused
1356
     */
1357
    int me_cmp;
1358
    /**
1359
     * subpixel motion estimation compare function.
1360
     * - encoding: set by user.
1361
     * - decoding: unused
1362
     */
1363
    int me_sub_cmp;
1364
    /**
1365
     * macroblock compare function (not supported yet).
1366
     * - encoding: set by user.
1367
     * - decoding: unused
1368
     */
1369
    int mb_cmp;
1370
    /**
1371
     * interlaced dct compare function
1372
     * - encoding: set by user.
1373
     * - decoding: unused
1374
     */
1375
    int ildct_cmp;
1376
#define FF_CMP_SAD  0
1377
#define FF_CMP_SSE  1
1378
#define FF_CMP_SATD 2
1379
#define FF_CMP_DCT  3
1380
#define FF_CMP_PSNR 4
1381
#define FF_CMP_BIT  5
1382
#define FF_CMP_RD   6
1383
#define FF_CMP_ZERO 7
1384
#define FF_CMP_VSAD 8
1385
#define FF_CMP_VSSE 9
1386
#define FF_CMP_NSSE 10
1387
#define FF_CMP_W53  11
1388
#define FF_CMP_W97  12
1389
#define FF_CMP_DCTMAX 13
1390
#define FF_CMP_CHROMA 256
1391
    
1392
    /**
1393
     * ME diamond size & shape.
1394
     * - encoding: set by user.
1395
     * - decoding: unused
1396
     */
1397
    int dia_size;
1398

    
1399
    /**
1400
     * amount of previous MV predictors (2a+1 x 2a+1 square).
1401
     * - encoding: set by user.
1402
     * - decoding: unused
1403
     */
1404
    int last_predictor_count;
1405

    
1406
    /**
1407
     * pre pass for motion estimation.
1408
     * - encoding: set by user.
1409
     * - decoding: unused
1410
     */
1411
    int pre_me;
1412

    
1413
    /**
1414
     * motion estimation pre pass compare function.
1415
     * - encoding: set by user.
1416
     * - decoding: unused
1417
     */
1418
    int me_pre_cmp;
1419

    
1420
    /**
1421
     * ME pre pass diamond size & shape.
1422
     * - encoding: set by user.
1423
     * - decoding: unused
1424
     */
1425
    int pre_dia_size;
1426

    
1427
    /**
1428
     * subpel ME quality.
1429
     * - encoding: set by user.
1430
     * - decoding: unused
1431
     */
1432
    int me_subpel_quality;
1433

    
1434
    /**
1435
     * callback to negotiate the pixelFormat.
1436
     * @param fmt is the list of formats which are supported by the codec,
1437
     * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1438
     * the first is allways the native one
1439
     * @return the choosen format
1440
     * - encoding: unused
1441
     * - decoding: set by user, if not set then the native format will always be choosen
1442
     */
1443
    enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
1444

    
1445
    /**
1446
     * DTG active format information (additionnal aspect ratio
1447
     * information only used in DVB MPEG2 transport streams). 0 if
1448
     * not set.
1449
     * 
1450
     * - encoding: unused.
1451
     * - decoding: set by decoder 
1452
     */
1453
    int dtg_active_format;
1454
#define FF_DTG_AFD_SAME         8
1455
#define FF_DTG_AFD_4_3          9
1456
#define FF_DTG_AFD_16_9         10
1457
#define FF_DTG_AFD_14_9         11
1458
#define FF_DTG_AFD_4_3_SP_14_9  13
1459
#define FF_DTG_AFD_16_9_SP_14_9 14
1460
#define FF_DTG_AFD_SP_4_3       15
1461

    
1462
    /**
1463
     * Maximum motion estimation search range in subpel units.
1464
     * if 0 then no limit
1465
     * 
1466
     * - encoding: set by user.
1467
     * - decoding: unused.
1468
     */
1469
    int me_range;
1470

    
1471
    /**
1472
     * intra quantizer bias.
1473
     * - encoding: set by user.
1474
     * - decoding: unused
1475
     */
1476
    int intra_quant_bias;
1477
#define FF_DEFAULT_QUANT_BIAS 999999
1478
    
1479
    /**
1480
     * inter quantizer bias.
1481
     * - encoding: set by user.
1482
     * - decoding: unused
1483
     */
1484
    int inter_quant_bias;
1485

    
1486
    /**
1487
     * color table ID.
1488
     * - encoding: unused.
1489
     * - decoding: which clrtable should be used for 8bit RGB images
1490
     *             table have to be stored somewhere FIXME
1491
     */
1492
    int color_table_id;
1493
    
1494
    /**
1495
     * internal_buffer count. 
1496
     * Don't touch, used by lavc default_get_buffer()
1497
     */
1498
    int internal_buffer_count;
1499
    
1500
    /**
1501
     * internal_buffers. 
1502
     * Don't touch, used by lavc default_get_buffer()
1503
     */
1504
    void *internal_buffer;
1505

    
1506
#define FF_LAMBDA_SHIFT 7
1507
#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1508
#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1509
#define FF_LAMBDA_MAX (256*128-1)
1510

    
1511
#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
1512
    /**
1513
     * global quality for codecs which cannot change it per frame.
1514
     * this should be proportional to MPEG1/2/4 qscale.
1515
     * - encoding: set by user.
1516
     * - decoding: unused
1517
     */
1518
    int global_quality;
1519
    
1520
#define FF_CODER_TYPE_VLC   0
1521
#define FF_CODER_TYPE_AC    1
1522
    /**
1523
     * coder type
1524
     * - encoding: set by user.
1525
     * - decoding: unused
1526
     */
1527
    int coder_type;
1528

    
1529
    /**
1530
     * context model
1531
     * - encoding: set by user.
1532
     * - decoding: unused
1533
     */
1534
    int context_model;
1535
    
1536
    /**
1537
     * slice flags
1538
     * - encoding: unused
1539
     * - decoding: set by user.
1540
     */
1541
    int slice_flags;
1542
#define SLICE_FLAG_CODED_ORDER    0x0001 ///< draw_horiz_band() is called in coded order instead of display
1543
#define SLICE_FLAG_ALLOW_FIELD    0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1544
#define SLICE_FLAG_ALLOW_PLANE    0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1545

    
1546
    /**
1547
     * XVideo Motion Acceleration
1548
     * - encoding: forbidden
1549
     * - decoding: set by decoder
1550
     */
1551
    int xvmc_acceleration;
1552
    
1553
    /**
1554
     * macroblock decision mode
1555
     * - encoding: set by user.
1556
     * - decoding: unused
1557
     */
1558
    int mb_decision;
1559
#define FF_MB_DECISION_SIMPLE 0        ///< uses mb_cmp
1560
#define FF_MB_DECISION_BITS   1        ///< chooses the one which needs the fewest bits
1561
#define FF_MB_DECISION_RD     2        ///< rate distoration
1562

    
1563
    /**
1564
     * custom intra quantization matrix
1565
     * - encoding: set by user, can be NULL
1566
     * - decoding: set by lavc
1567
     */
1568
    uint16_t *intra_matrix;
1569

    
1570
    /**
1571
     * custom inter quantization matrix
1572
     * - encoding: set by user, can be NULL
1573
     * - decoding: set by lavc
1574
     */
1575
    uint16_t *inter_matrix;
1576
    
1577
    /**
1578
     * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1579
     * this is used to workaround some encoder bugs
1580
     * - encoding: unused
1581
     * - decoding: set by user, will be converted to upper case by lavc during init
1582
     */
1583
    unsigned int stream_codec_tag;
1584

    
1585
    /**
1586
     * scene change detection threshold.
1587
     * 0 is default, larger means fewer detected scene changes
1588
     * - encoding: set by user.
1589
     * - decoding: unused
1590
     */
1591
    int scenechange_threshold;
1592

    
1593
    /**
1594
     * minimum lagrange multipler
1595
     * - encoding: set by user.
1596
     * - decoding: unused
1597
     */
1598
    int lmin;
1599

    
1600
    /**
1601
     * maximum lagrange multipler
1602
     * - encoding: set by user.
1603
     * - decoding: unused
1604
     */
1605
    int lmax;
1606

    
1607
    /**
1608
     * Palette control structure
1609
     * - encoding: ??? (no palette-enabled encoder yet)
1610
     * - decoding: set by user.
1611
     */
1612
    struct AVPaletteControl *palctrl;
1613

    
1614
    /**
1615
     * noise reduction strength
1616
     * - encoding: set by user.
1617
     * - decoding: unused
1618
     */
1619
    int noise_reduction;
1620
    
1621
    /**
1622
     * called at the beginning of a frame to get cr buffer for it.
1623
     * buffer type (size, hints) must be the same. lavc won't check it.
1624
     * lavc will pass previous buffer in pic, function should return
1625
     * same buffer or new buffer with old frame "painted" into it.
1626
     * if pic.data[0] == NULL must behave like get_buffer().
1627
     * - encoding: unused
1628
     * - decoding: set by lavc, user can override
1629
     */
1630
    int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
1631

    
1632
    /**
1633
     * number of bits which should be loaded into the rc buffer before decoding starts
1634
     * - encoding: set by user.
1635
     * - decoding: unused
1636
     */
1637
    int rc_initial_buffer_occupancy;
1638

    
1639
    /**
1640
     *
1641
     * - encoding: set by user.
1642
     * - decoding: unused
1643
     */
1644
    int inter_threshold;
1645

    
1646
    /**
1647
     * CODEC_FLAG2_*.
1648
     * - encoding: set by user.
1649
     * - decoding: set by user.
1650
     */
1651
    int flags2;
1652

    
1653
    /**
1654
     * simulates errors in the bitstream to test error concealment.
1655
     * - encoding: set by user.
1656
     * - decoding: unused.
1657
     */
1658
    int error_rate;
1659
    
1660
    /**
1661
     * MP3 antialias algorithm, see FF_AA_* below.
1662
     * - encoding: unused
1663
     * - decoding: set by user
1664
     */
1665
    int antialias_algo;
1666
#define FF_AA_AUTO    0
1667
#define FF_AA_FASTINT 1 //not implemented yet
1668
#define FF_AA_INT     2
1669
#define FF_AA_FLOAT   3
1670
    /**
1671
     * Quantizer noise shaping.
1672
     * - encoding: set by user
1673
     * - decoding: unused
1674
     */
1675
    int quantizer_noise_shaping;
1676

    
1677
    /**
1678
     * Thread count.
1679
     * is used to decide how many independant tasks should be passed to execute()
1680
     * - encoding: set by user
1681
     * - decoding: set by user
1682
     */
1683
    int thread_count;
1684
    
1685
    /**
1686
     * the codec may call this to execute several independant things. it will return only after
1687
     * finishing all tasks, the user may replace this with some multithreaded implementation, the
1688
     * default implementation will execute the parts serially
1689
     * @param count the number of things to execute
1690
     * - encoding: set by lavc, user can override
1691
     * - decoding: set by lavc, user can override
1692
     */
1693
    int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
1694
    
1695
    /**
1696
     * Thread opaque.
1697
     * can be used by execute() to store some per AVCodecContext stuff.
1698
     * - encoding: set by execute()
1699
     * - decoding: set by execute()
1700
     */
1701
    void *thread_opaque;
1702

    
1703
    /**
1704
     * Motion estimation threshold. under which no motion estimation is 
1705
     * performed, but instead the user specified motion vectors are used
1706
     * 
1707
     * - encoding: set by user
1708
     * - decoding: unused
1709
     */
1710
     int me_threshold;
1711

    
1712
    /**
1713
     * Macroblock threshold. under which the user specified macroblock types will be used
1714
     * - encoding: set by user
1715
     * - decoding: unused
1716
     */
1717
     int mb_threshold;
1718

    
1719
    /**
1720
     * precision of the intra dc coefficient - 8.
1721
     * - encoding: set by user
1722
     * - decoding: unused
1723
     */
1724
     int intra_dc_precision;
1725

    
1726
    /**
1727
     * noise vs. sse weight for the nsse comparsion function.
1728
     * - encoding: set by user
1729
     * - decoding: unused
1730
     */
1731
     int nsse_weight;
1732

    
1733
    /**
1734
     * number of macroblock rows at the top which are skipped.
1735
     * - encoding: unused
1736
     * - decoding: set by user
1737
     */
1738
     int skip_top;
1739

    
1740
    /**
1741
     * number of macroblock rows at the bottom which are skipped.
1742
     * - encoding: unused
1743
     * - decoding: set by user
1744
     */
1745
     int skip_bottom;
1746

    
1747
    /**
1748
     * profile
1749
     * - encoding: set by user
1750
     * - decoding: set by lavc
1751
     */
1752
     int profile;
1753
#define FF_PROFILE_UNKNOWN -99
1754

    
1755
    /**
1756
     * level
1757
     * - encoding: set by user
1758
     * - decoding: set by lavc
1759
     */
1760
     int level;
1761
#define FF_LEVEL_UNKNOWN -99
1762

    
1763
    /**
1764
     * low resolution decoding. 1-> 1/2 size, 2->1/4 size
1765
     * - encoding: unused
1766
     * - decoding: set by user
1767
     */
1768
     int lowres;
1769

    
1770
    /**
1771
     * bitsream width / height. may be different from width/height if lowres
1772
     * or other things are used
1773
     * - encoding: unused
1774
     * - decoding: set by user before init if known, codec should override / dynamically change if needed
1775
     */
1776
    int coded_width, coded_height;
1777

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

    
1785
    /**
1786
     * frame skip factor
1787
     * - encoding: set by user
1788
     * - decoding: unused
1789
     */
1790
    int frame_skip_factor;
1791

    
1792
    /**
1793
     * frame skip exponent
1794
     * - encoding: set by user
1795
     * - decoding: unused
1796
     */
1797
    int frame_skip_exp;
1798

    
1799
    /**
1800
     * frame skip comparission function
1801
     * - encoding: set by user.
1802
     * - decoding: unused
1803
     */
1804
    int frame_skip_cmp;
1805

    
1806
    /**
1807
     * border processing masking. raises the quantizer for mbs on the borders
1808
     * of the picture.
1809
     * - encoding: set by user
1810
     * - decoding: unused
1811
     */
1812
    float border_masking;
1813

    
1814
    /**
1815
     * minimum MB lagrange multipler.
1816
     * - encoding: set by user.
1817
     * - decoding: unused
1818
     */
1819
    int mb_lmin;
1820

    
1821
    /**
1822
     * maximum MB lagrange multipler.
1823
     * - encoding: set by user.
1824
     * - decoding: unused
1825
     */
1826
    int mb_lmax;
1827

    
1828
    /**
1829
     * 
1830
     * - encoding: set by user.
1831
     * - decoding: unused
1832
     */
1833
    int me_penalty_compensation;
1834

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

    
1842
    /**
1843
     * 
1844
     * - encoding: unused
1845
     * - decoding: set by user.
1846
     */
1847
    enum AVDiscard skip_idct;
1848

    
1849
    /**
1850
     * 
1851
     * - encoding: unused
1852
     * - decoding: set by user.
1853
     */
1854
    enum AVDiscard skip_frame;
1855
} AVCodecContext;
1856

    
1857
/**
1858
 * AVCodec.
1859
 */
1860
typedef struct AVCodec {
1861
    const char *name;
1862
    enum CodecType type;
1863
    enum CodecID id;
1864
    int priv_data_size;
1865
    int (*init)(AVCodecContext *);
1866
    int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
1867
    int (*close)(AVCodecContext *);
1868
    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
1869
                  uint8_t *buf, int buf_size);
1870
    int capabilities;
1871
#if LIBAVCODEC_VERSION_INT < ((50<<16)+(0<<8)+0)
1872
    void *dummy; // FIXME remove next time we break binary compatibility
1873
#endif
1874
    struct AVCodec *next;
1875
    void (*flush)(AVCodecContext *);
1876
    const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
1877
    const enum PixelFormat *pix_fmts;       ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
1878
} AVCodec;
1879

    
1880
/**
1881
 * four components are given, that's all.
1882
 * the last component is alpha
1883
 */
1884
typedef struct AVPicture {
1885
    uint8_t *data[4];
1886
    int linesize[4];       ///< number of bytes per line
1887
} AVPicture;
1888

    
1889
/**
1890
 * AVPaletteControl
1891
 * This structure defines a method for communicating palette changes
1892
 * between and demuxer and a decoder.
1893
 */
1894
#define AVPALETTE_SIZE 1024
1895
#define AVPALETTE_COUNT 256
1896
typedef struct AVPaletteControl {
1897

    
1898
    /* demuxer sets this to 1 to indicate the palette has changed;
1899
     * decoder resets to 0 */
1900
    int palette_changed;
1901

    
1902
    /* 4-byte ARGB palette entries, stored in native byte order; note that
1903
     * the individual palette components should be on a 8-bit scale; if
1904
     * the palette data comes from a IBM VGA native format, the component
1905
     * data is probably 6 bits in size and needs to be scaled */
1906
    unsigned int palette[AVPALETTE_COUNT];
1907

    
1908
} AVPaletteControl;
1909

    
1910
typedef struct AVSubtitleRect {
1911
    uint16_t x;
1912
    uint16_t y;
1913
    uint16_t w;
1914
    uint16_t h;
1915
    uint16_t nb_colors;
1916
    int linesize;
1917
    uint32_t *rgba_palette;
1918
    uint8_t *bitmap;
1919
} AVSubtitleRect;
1920

    
1921
typedef struct AVSubtitle {
1922
    uint16_t format; /* 0 = graphics */
1923
    uint32_t start_display_time; /* relative to packet pts, in ms */
1924
    uint32_t end_display_time; /* relative to packet pts, in ms */
1925
    uint32_t num_rects;
1926
    AVSubtitleRect *rects;
1927
} AVSubtitle;
1928

    
1929
extern AVCodec ac3_encoder;
1930
extern AVCodec mp2_encoder;
1931
extern AVCodec mp3lame_encoder;
1932
extern AVCodec oggvorbis_encoder;
1933
extern AVCodec oggtheora_encoder;
1934
extern AVCodec faac_encoder;
1935
extern AVCodec xvid_encoder;
1936
extern AVCodec mpeg1video_encoder;
1937
extern AVCodec mpeg2video_encoder;
1938
extern AVCodec h261_encoder;
1939
extern AVCodec h263_encoder;
1940
extern AVCodec h263p_encoder;
1941
extern AVCodec flv_encoder;
1942
extern AVCodec rv10_encoder;
1943
extern AVCodec rv20_encoder;
1944
extern AVCodec dvvideo_encoder;
1945
extern AVCodec mjpeg_encoder;
1946
extern AVCodec ljpeg_encoder;
1947
extern AVCodec png_encoder;
1948
extern AVCodec ppm_encoder;
1949
extern AVCodec pgm_encoder;
1950
extern AVCodec pgmyuv_encoder;
1951
extern AVCodec pbm_encoder;
1952
extern AVCodec pam_encoder;
1953
extern AVCodec mpeg4_encoder;
1954
extern AVCodec msmpeg4v1_encoder;
1955
extern AVCodec msmpeg4v2_encoder;
1956
extern AVCodec msmpeg4v3_encoder;
1957
extern AVCodec wmv1_encoder;
1958
extern AVCodec wmv2_encoder;
1959
extern AVCodec huffyuv_encoder;
1960
extern AVCodec ffvhuff_encoder;
1961
extern AVCodec h264_encoder;
1962
extern AVCodec asv1_encoder;
1963
extern AVCodec asv2_encoder;
1964
extern AVCodec vcr1_encoder;
1965
extern AVCodec ffv1_encoder;
1966
extern AVCodec snow_encoder;
1967
extern AVCodec mdec_encoder;
1968
extern AVCodec zlib_encoder;
1969
extern AVCodec sonic_encoder;
1970
extern AVCodec sonic_ls_encoder;
1971
extern AVCodec svq1_encoder;
1972
extern AVCodec x264_encoder;
1973

    
1974
extern AVCodec h263_decoder;
1975
extern AVCodec h261_decoder;
1976
extern AVCodec mpeg4_decoder;
1977
extern AVCodec msmpeg4v1_decoder;
1978
extern AVCodec msmpeg4v2_decoder;
1979
extern AVCodec msmpeg4v3_decoder;
1980
extern AVCodec wmv1_decoder;
1981
extern AVCodec wmv2_decoder;
1982
extern AVCodec vc9_decoder;
1983
extern AVCodec wmv3_decoder;
1984
extern AVCodec mpeg1video_decoder;
1985
extern AVCodec mpeg2video_decoder;
1986
extern AVCodec mpegvideo_decoder;
1987
extern AVCodec mpeg_xvmc_decoder;
1988
extern AVCodec h263i_decoder;
1989
extern AVCodec flv_decoder;
1990
extern AVCodec rv10_decoder;
1991
extern AVCodec rv20_decoder;
1992
extern AVCodec rv30_decoder;
1993
extern AVCodec rv40_decoder;
1994
extern AVCodec svq1_decoder;
1995
extern AVCodec svq3_decoder;
1996
extern AVCodec dvvideo_decoder;
1997
extern AVCodec wmav1_decoder;
1998
extern AVCodec wmav2_decoder;
1999
extern AVCodec mjpeg_decoder;
2000
extern AVCodec mjpegb_decoder;
2001
extern AVCodec sp5x_decoder;
2002
extern AVCodec png_decoder;
2003
extern AVCodec mp2_decoder;
2004
extern AVCodec mp3_decoder;
2005
extern AVCodec mp3adu_decoder;
2006
extern AVCodec mp3on4_decoder;
2007
extern AVCodec qdm2_decoder;
2008
extern AVCodec cook_decoder;
2009
extern AVCodec mace3_decoder;
2010
extern AVCodec mace6_decoder;
2011
extern AVCodec huffyuv_decoder;
2012
extern AVCodec ffvhuff_decoder;
2013
extern AVCodec oggvorbis_decoder;
2014
extern AVCodec oggtheora_decoder;
2015
extern AVCodec cyuv_decoder;
2016
extern AVCodec h264_decoder;
2017
extern AVCodec indeo3_decoder;
2018
extern AVCodec vp3_decoder;
2019
extern AVCodec theora_decoder;
2020
extern AVCodec amr_nb_decoder;
2021
extern AVCodec amr_nb_encoder;
2022
extern AVCodec amr_wb_encoder;
2023
extern AVCodec amr_wb_decoder;
2024
extern AVCodec aac_decoder;
2025
extern AVCodec mpeg4aac_decoder;
2026
extern AVCodec asv1_decoder;
2027
extern AVCodec asv2_decoder;
2028
extern AVCodec vcr1_decoder;
2029
extern AVCodec cljr_decoder;
2030
extern AVCodec ffv1_decoder;
2031
extern AVCodec snow_decoder;
2032
extern AVCodec fourxm_decoder;
2033
extern AVCodec mdec_decoder;
2034
extern AVCodec roq_decoder;
2035
extern AVCodec interplay_video_decoder;
2036
extern AVCodec xan_wc3_decoder;
2037
extern AVCodec rpza_decoder;
2038
extern AVCodec cinepak_decoder;
2039
extern AVCodec msrle_decoder;
2040
extern AVCodec msvideo1_decoder;
2041
extern AVCodec vqa_decoder;
2042
extern AVCodec idcin_decoder;
2043
extern AVCodec eightbps_decoder;
2044
extern AVCodec smc_decoder;
2045
extern AVCodec flic_decoder;
2046
extern AVCodec vmdvideo_decoder;
2047
extern AVCodec vmdaudio_decoder;
2048
extern AVCodec truemotion1_decoder;
2049
extern AVCodec truemotion2_decoder;
2050
extern AVCodec mszh_decoder;
2051
extern AVCodec zlib_decoder;
2052
extern AVCodec ra_144_decoder;
2053
extern AVCodec ra_288_decoder;
2054
extern AVCodec roq_dpcm_decoder;
2055
extern AVCodec interplay_dpcm_decoder;
2056
extern AVCodec xan_dpcm_decoder;
2057
extern AVCodec sol_dpcm_decoder;
2058
extern AVCodec sonic_decoder;
2059
extern AVCodec qtrle_decoder;
2060
extern AVCodec flac_decoder;
2061
extern AVCodec tscc_decoder;
2062
extern AVCodec ulti_decoder;
2063
extern AVCodec qdraw_decoder;
2064
extern AVCodec xl_decoder;
2065
extern AVCodec qpeg_decoder;
2066
extern AVCodec shorten_decoder;
2067
extern AVCodec loco_decoder;
2068
extern AVCodec wnv1_decoder;
2069
extern AVCodec aasc_decoder;
2070
extern AVCodec alac_decoder;
2071
extern AVCodec ws_snd1_decoder;
2072
extern AVCodec indeo2_decoder;
2073
extern AVCodec vorbis_decoder;
2074
extern AVCodec fraps_decoder;
2075
extern AVCodec libgsm_encoder;
2076
extern AVCodec libgsm_decoder;
2077
extern AVCodec bmp_decoder;
2078

    
2079
/* pcm codecs */
2080
#define PCM_CODEC(id, name) \
2081
extern AVCodec name ## _decoder; \
2082
extern AVCodec name ## _encoder
2083

    
2084
PCM_CODEC(CODEC_ID_PCM_S32LE, pcm_s32le);
2085
PCM_CODEC(CODEC_ID_PCM_S32BE, pcm_s32be);
2086
PCM_CODEC(CODEC_ID_PCM_U32LE, pcm_u32le);
2087
PCM_CODEC(CODEC_ID_PCM_U32BE, pcm_u32be);
2088
PCM_CODEC(CODEC_ID_PCM_S24LE, pcm_s24le);
2089
PCM_CODEC(CODEC_ID_PCM_S24BE, pcm_s24be);
2090
PCM_CODEC(CODEC_ID_PCM_U24LE, pcm_u24le);
2091
PCM_CODEC(CODEC_ID_PCM_U24BE, pcm_u24be);
2092
PCM_CODEC(CODEC_ID_PCM_S24DAUD, pcm_s24daud);
2093
PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
2094
PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
2095
PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
2096
PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
2097
PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
2098
PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
2099
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
2100
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
2101

    
2102
/* adpcm codecs */
2103

    
2104
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
2105
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
2106
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
2107
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
2108
PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
2109
PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
2110
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
2111
PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
2112
PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
2113
PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
2114
PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
2115
PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
2116
PCM_CODEC(CODEC_ID_ADPCM_CT, adpcm_ct);
2117
PCM_CODEC(CODEC_ID_ADPCM_SWF, adpcm_swf);
2118
PCM_CODEC(CODEC_ID_ADPCM_YAMAHA, adpcm_yamaha);
2119

    
2120
#undef PCM_CODEC
2121

    
2122
/* dummy raw video codec */
2123
extern AVCodec rawvideo_encoder;
2124
extern AVCodec rawvideo_decoder;
2125

    
2126
/* the following codecs use external GPL libs */
2127
extern AVCodec ac3_decoder;
2128
extern AVCodec dts_decoder;
2129

    
2130
/* subtitles */
2131
extern AVCodec dvdsub_encoder;
2132
extern AVCodec dvdsub_decoder;
2133
extern AVCodec dvbsub_encoder;
2134
extern AVCodec dvbsub_decoder;
2135

    
2136
/* resample.c */
2137

    
2138
struct ReSampleContext;
2139
struct AVResampleContext;
2140

    
2141
typedef struct ReSampleContext ReSampleContext;
2142

    
2143
ReSampleContext *audio_resample_init(int output_channels, int input_channels, 
2144
                                     int output_rate, int input_rate);
2145
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
2146
void audio_resample_close(ReSampleContext *s);
2147

    
2148
struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
2149
int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
2150
void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
2151
void av_resample_close(struct AVResampleContext *c);
2152

    
2153
/* YUV420 format is assumed ! */
2154

    
2155
struct ImgReSampleContext;
2156

    
2157
typedef struct ImgReSampleContext ImgReSampleContext;
2158

    
2159
ImgReSampleContext *img_resample_init(int output_width, int output_height,
2160
                                      int input_width, int input_height);
2161

    
2162
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
2163
                                      int iwidth, int iheight,
2164
                                      int topBand, int bottomBand,
2165
                                      int leftBand, int rightBand,
2166
                                      int padtop, int padbottom,
2167
                                      int padleft, int padright);
2168

    
2169

    
2170
void img_resample(ImgReSampleContext *s, 
2171
                  AVPicture *output, const AVPicture *input);
2172

    
2173
void img_resample_close(ImgReSampleContext *s);
2174

    
2175
/**
2176
 * Allocate memory for a picture.  Call avpicture_free to free it.
2177
 *
2178
 * @param picture the picture to be filled in.
2179
 * @param pix_fmt the format of the picture.
2180
 * @param width the width of the picture.
2181
 * @param height the height of the picture.
2182
 * @return 0 if successful, -1 if not.
2183
 */
2184
int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
2185

    
2186
/* Free a picture previously allocated by avpicture_alloc. */
2187
void avpicture_free(AVPicture *picture);
2188

    
2189
int avpicture_fill(AVPicture *picture, uint8_t *ptr,
2190
                   int pix_fmt, int width, int height);
2191
int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
2192
                     unsigned char *dest, int dest_size);
2193
int avpicture_get_size(int pix_fmt, int width, int height);
2194
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
2195
const char *avcodec_get_pix_fmt_name(int pix_fmt);
2196
void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
2197
enum PixelFormat avcodec_get_pix_fmt(const char* name);
2198
unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat p);
2199

    
2200
#define FF_LOSS_RESOLUTION  0x0001 /* loss due to resolution change */
2201
#define FF_LOSS_DEPTH       0x0002 /* loss due to color depth change */
2202
#define FF_LOSS_COLORSPACE  0x0004 /* loss due to color space conversion */
2203
#define FF_LOSS_ALPHA       0x0008 /* loss of alpha bits */
2204
#define FF_LOSS_COLORQUANT  0x0010 /* loss due to color quantization */
2205
#define FF_LOSS_CHROMA      0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
2206

    
2207
int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
2208
                             int has_alpha);
2209
int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
2210
                              int has_alpha, int *loss_ptr);
2211

    
2212
#define FF_ALPHA_TRANSP       0x0001 /* image has some totally transparent pixels */
2213
#define FF_ALPHA_SEMI_TRANSP  0x0002 /* image has some transparent pixels */
2214
int img_get_alpha_info(const AVPicture *src,
2215
                       int pix_fmt, int width, int height);
2216

    
2217
/* convert among pixel formats */
2218
int img_convert(AVPicture *dst, int dst_pix_fmt,
2219
                const AVPicture *src, int pix_fmt, 
2220
                int width, int height);
2221

    
2222
/* deinterlace a picture */
2223
int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
2224
                          int pix_fmt, int width, int height);
2225

    
2226
/* external high level API */
2227

    
2228
extern AVCodec *first_avcodec;
2229

    
2230
/* returns LIBAVCODEC_VERSION_INT constant */
2231
unsigned avcodec_version(void);
2232
/* returns LIBAVCODEC_BUILD constant */
2233
unsigned avcodec_build(void);
2234
void avcodec_init(void);
2235

    
2236
void register_avcodec(AVCodec *format);
2237
AVCodec *avcodec_find_encoder(enum CodecID id);
2238
AVCodec *avcodec_find_encoder_by_name(const char *name);
2239
AVCodec *avcodec_find_decoder(enum CodecID id);
2240
AVCodec *avcodec_find_decoder_by_name(const char *name);
2241
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
2242

    
2243
void avcodec_get_context_defaults(AVCodecContext *s);
2244
AVCodecContext *avcodec_alloc_context(void);
2245
void avcodec_get_frame_defaults(AVFrame *pic);
2246
AVFrame *avcodec_alloc_frame(void);
2247

    
2248
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
2249
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
2250
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
2251
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
2252
int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h);
2253
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
2254

    
2255
int avcodec_thread_init(AVCodecContext *s, int thread_count);
2256
void avcodec_thread_free(AVCodecContext *s);
2257
int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2258
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2259
//FIXME func typedef
2260

    
2261
/**
2262
 * opens / inits the AVCodecContext.
2263
 * not thread save!
2264
 */
2265
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
2266

    
2267
int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples, 
2268
                         int *frame_size_ptr,
2269
                         uint8_t *buf, int buf_size);
2270
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture, 
2271
                         int *got_picture_ptr,
2272
                         uint8_t *buf, int buf_size);
2273
int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
2274
                            int *got_sub_ptr,
2275
                            const uint8_t *buf, int buf_size);
2276
int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata, 
2277
                        int *data_size_ptr,
2278
                        uint8_t *buf, int buf_size);
2279
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
2280
                         const short *samples);
2281
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
2282
                         const AVFrame *pict);
2283
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
2284
                            const AVSubtitle *sub);
2285

    
2286
int avcodec_close(AVCodecContext *avctx);
2287

    
2288
void avcodec_register_all(void);
2289

    
2290
void avcodec_flush_buffers(AVCodecContext *avctx);
2291

    
2292
void avcodec_default_free_buffers(AVCodecContext *s);
2293

    
2294
/* misc usefull functions */
2295

    
2296
/**
2297
 * returns a single letter to describe the picture type
2298
 */
2299
char av_get_pict_type_char(int pict_type);
2300

    
2301

    
2302
/* frame parsing */
2303
typedef struct AVCodecParserContext {
2304
    void *priv_data;
2305
    struct AVCodecParser *parser;
2306
    int64_t frame_offset; /* offset of the current frame */
2307
    int64_t cur_offset; /* current offset 
2308
                           (incremented by each av_parser_parse()) */
2309
    int64_t last_frame_offset; /* offset of the last frame */
2310
    /* video info */
2311
    int pict_type; /* XXX: put it back in AVCodecContext */
2312
    int repeat_pict; /* XXX: put it back in AVCodecContext */
2313
    int64_t pts;     /* pts of the current frame */
2314
    int64_t dts;     /* dts of the current frame */
2315

    
2316
    /* private data */
2317
    int64_t last_pts;
2318
    int64_t last_dts;
2319
    int fetch_timestamp;
2320

    
2321
#define AV_PARSER_PTS_NB 4
2322
    int cur_frame_start_index;
2323
    int64_t cur_frame_offset[AV_PARSER_PTS_NB];
2324
    int64_t cur_frame_pts[AV_PARSER_PTS_NB];
2325
    int64_t cur_frame_dts[AV_PARSER_PTS_NB];
2326
    
2327
    int flags;
2328
#define PARSER_FLAG_COMPLETE_FRAMES           0x0001
2329
} AVCodecParserContext;
2330

    
2331
typedef struct AVCodecParser {
2332
    int codec_ids[5]; /* several codec IDs are permitted */
2333
    int priv_data_size;
2334
    int (*parser_init)(AVCodecParserContext *s);
2335
    int (*parser_parse)(AVCodecParserContext *s, 
2336
                        AVCodecContext *avctx,
2337
                        uint8_t **poutbuf, int *poutbuf_size, 
2338
                        const uint8_t *buf, int buf_size);
2339
    void (*parser_close)(AVCodecParserContext *s);
2340
    int (*split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size);
2341
    struct AVCodecParser *next;
2342
} AVCodecParser;
2343

    
2344
extern AVCodecParser *av_first_parser;
2345

    
2346
void av_register_codec_parser(AVCodecParser *parser);
2347
AVCodecParserContext *av_parser_init(int codec_id);
2348
int av_parser_parse(AVCodecParserContext *s, 
2349
                    AVCodecContext *avctx,
2350
                    uint8_t **poutbuf, int *poutbuf_size, 
2351
                    const uint8_t *buf, int buf_size,
2352
                    int64_t pts, int64_t dts);
2353
int av_parser_change(AVCodecParserContext *s,
2354
                     AVCodecContext *avctx,
2355
                     uint8_t **poutbuf, int *poutbuf_size, 
2356
                     const uint8_t *buf, int buf_size, int keyframe);
2357
void av_parser_close(AVCodecParserContext *s);
2358

    
2359
extern AVCodecParser mpegvideo_parser;
2360
extern AVCodecParser mpeg4video_parser;
2361
extern AVCodecParser h261_parser;
2362
extern AVCodecParser h263_parser;
2363
extern AVCodecParser h264_parser;
2364
extern AVCodecParser mjpeg_parser;
2365
extern AVCodecParser pnm_parser;
2366
extern AVCodecParser mpegaudio_parser;
2367
extern AVCodecParser ac3_parser;
2368
extern AVCodecParser dvdsub_parser;
2369
extern AVCodecParser dvbsub_parser;
2370

    
2371
/* memory */
2372
void *av_malloc(unsigned int size);
2373
void *av_mallocz(unsigned int size);
2374
void *av_realloc(void *ptr, unsigned int size);
2375
void av_free(void *ptr);
2376
char *av_strdup(const char *s);
2377
void av_freep(void *ptr);
2378
void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
2379
/* for static data only */
2380
/* call av_free_static to release all staticaly allocated tables */
2381
void av_free_static(void);
2382
void *av_mallocz_static(unsigned int size);
2383
void *av_realloc_static(void *ptr, unsigned int size);
2384

    
2385
/* add by bero : in adx.c */
2386
int is_adx(const unsigned char *buf,size_t bufsize);
2387

    
2388
void img_copy(AVPicture *dst, const AVPicture *src,
2389
              int pix_fmt, int width, int height);
2390

    
2391
/* av_log API */
2392

    
2393
#include <stdarg.h>
2394

    
2395
#define AV_LOG_QUIET -1
2396
#define AV_LOG_ERROR 0
2397
#define AV_LOG_INFO 1
2398
#define AV_LOG_DEBUG 2
2399

    
2400
#ifdef __GNUC__
2401
extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
2402
#else
2403
extern void av_log(void*, int level, const char *fmt, ...);
2404
#endif
2405

    
2406
extern void av_vlog(void*, int level, const char *fmt, va_list);
2407
extern int av_log_get_level(void);
2408
extern void av_log_set_level(int);
2409
extern void av_log_set_callback(void (*)(void*, int, const char*, va_list));
2410

    
2411
/* endian macros */
2412
#if !defined(BE_16) || !defined(BE_32) || !defined(LE_16) || !defined(LE_32)
2413
#define BE_16(x)  ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
2414
#define BE_32(x)  ((((uint8_t*)(x))[0] << 24) | \
2415
                   (((uint8_t*)(x))[1] << 16) | \
2416
                   (((uint8_t*)(x))[2] << 8) | \
2417
                    ((uint8_t*)(x))[3])
2418
#define LE_16(x)  ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
2419
#define LE_32(x)  ((((uint8_t*)(x))[3] << 24) | \
2420
                   (((uint8_t*)(x))[2] << 16) | \
2421
                   (((uint8_t*)(x))[1] << 8) | \
2422
                    ((uint8_t*)(x))[0])
2423
#endif
2424

    
2425
extern unsigned int av_xiphlacing(unsigned char *s, unsigned int v);
2426

    
2427
#ifdef __cplusplus
2428
}
2429
#endif
2430

    
2431
#endif /* AVCODEC_H */