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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 "common.h"
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#include "rational.h"
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#include <sys/types.h> /* size_t */
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#define FFMPEG_VERSION_INT     0x000409
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#define FFMPEG_VERSION         "0.4.9-pre1"
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#define LIBAVCODEC_BUILD       4755
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#define LIBAVCODEC_VERSION_INT FFMPEG_VERSION_INT
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#define LIBAVCODEC_VERSION     FFMPEG_VERSION
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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_IDENT        "FFmpeg" LIBAVCODEC_VERSION "b" AV_STRINGIFY(LIBAVCODEC_BUILD)
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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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    /* 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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    /* 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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    /* 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_OGGTHEORA= 0x16000, 
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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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};
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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 AVRounding {
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    AV_ROUND_ZERO     = 0, ///< round toward zero
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    AV_ROUND_INF      = 1, ///< round away from zero
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    AV_ROUND_DOWN     = 2, ///< round toward -infinity
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    AV_ROUND_UP       = 3, ///< round toward +infinity
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    AV_ROUND_NEAR_INF = 5, ///< round to nearest and halfway cases away from zero
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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: 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///< dont 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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/* 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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/**
349
 * Codec uses get_buffer() for allocating buffers.
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 * direct rendering method 1
351
 */
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#define CODEC_CAP_DR1             0x0002
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/* if 'parse_only' field is true, then avcodec_parse_frame() can be
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   used */
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#define CODEC_CAP_PARSE_ONLY      0x0004
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#define CODEC_CAP_TRUNCATED       0x0008
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/* codec can export data for HW decoding (XvMC) */
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#define CODEC_CAP_HWACCEL         0x0010
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/** 
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 * codec has a non zero delay and needs to be feeded with NULL at the end to get the delayed data.
361
 * if this is not set, the codec is guranteed to never be feeded with NULL data
362
 */
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#define CODEC_CAP_DELAY           0x0020
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//the following defines might change, so dont expect compatibility if u 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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/**
390
 * Pan Scan area.
391
 * this specifies the area which should be displayed. Note there may be multiple such areas for one frame
392
 */
393
typedef struct AVPanScan{
394
    /**
395
     * id.
396
     * - encoding: set by user.
397
     * - decoding: set by lavc
398
     */
399
    int id;
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401
    /**
402
     * width and height in 1/16 pel
403
     * - encoding: set by user.
404
     * - decoding: set by lavc
405
     */
406
    int width;
407
    int height;
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409
    /**
410
     * position of the top left corner in 1/16 pel for up to 3 fields/frames.
411
     * - encoding: set by user.
412
     * - decoding: set by lavc
413
     */
414
    int16_t position[3][2];
415
}AVPanScan;
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417
#define FF_COMMON_FRAME \
418
    /**\
419
     * pointer to the picture planes.\
420
     * this might be different from the first allocated byte\
421
     * - encoding: \
422
     * - decoding: \
423
     */\
424
    uint8_t *data[4];\
425
    int linesize[4];\
426
    /**\
427
     * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
428
     * this isnt used by lavc unless the default get/release_buffer() is used\
429
     * - encoding: \
430
     * - decoding: \
431
     */\
432
    uint8_t *base[4];\
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    /**\
434
     * 1 -> keyframe, 0-> not\
435
     * - encoding: set by lavc\
436
     * - decoding: set by lavc\
437
     */\
438
    int key_frame;\
439
\
440
    /**\
441
     * picture type of the frame, see ?_TYPE below.\
442
     * - encoding: set by lavc for coded_picture (and set by user for input)\
443
     * - decoding: set by lavc\
444
     */\
445
    int pict_type;\
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\
447
    /**\
448
     * presentation timestamp in time_base units (time when frame should be shown to user)\
449
     * if AV_NOPTS_VALUE then frame_rate = 1/time_base will be assumed\
450
     * - encoding: MUST be set by user\
451
     * - decoding: set by lavc\
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     */\
453
    int64_t pts;\
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\
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    /**\
456
     * picture number in bitstream order.\
457
     * - encoding: set by\
458
     * - decoding: set by lavc\
459
     */\
460
    int coded_picture_number;\
461
    /**\
462
     * picture number in display order.\
463
     * - encoding: set by\
464
     * - decoding: set by lavc\
465
     */\
466
    int display_picture_number;\
467
\
468
    /**\
469
     * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
470
     * - encoding: set by lavc for coded_picture (and set by user for input)\
471
     * - decoding: set by lavc\
472
     */\
473
    int quality; \
474
\
475
    /**\
476
     * buffer age (1->was last buffer and dint change, 2->..., ...).\
477
     * set to INT_MAX if the buffer has not been used yet \
478
     * - encoding: unused\
479
     * - decoding: MUST be set by get_buffer()\
480
     */\
481
    int age;\
482
\
483
    /**\
484
     * is this picture used as reference\
485
     * - encoding: unused\
486
     * - decoding: set by lavc (before get_buffer() call))\
487
     */\
488
    int reference;\
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\
490
    /**\
491
     * QP table\
492
     * - encoding: unused\
493
     * - decoding: set by lavc\
494
     */\
495
    int8_t *qscale_table;\
496
    /**\
497
     * QP store stride\
498
     * - encoding: unused\
499
     * - decoding: set by lavc\
500
     */\
501
    int qstride;\
502
\
503
    /**\
504
     * mbskip_table[mb]>=1 if MB didnt change\
505
     * stride= mb_width = (width+15)>>4\
506
     * - encoding: unused\
507
     * - decoding: set by lavc\
508
     */\
509
    uint8_t *mbskip_table;\
510
\
511
    /**\
512
     * Motion vector table.\
513
     * @code\
514
     * example:\
515
     * int mv_sample_log2= 4 - motion_subsample_log2;\
516
     * int mb_width= (width+15)>>4;\
517
     * int mv_stride= (mb_width << mv_sample_log2) + 1;\
518
     * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y];\
519
     * @endcode\
520
     * - encoding: set by user\
521
     * - decoding: set by lavc\
522
     */\
523
    int16_t (*motion_val[2])[2];\
524
\
525
    /**\
526
     * Macroblock type table\
527
     * mb_type_base + mb_width + 2\
528
     * - encoding: set by user\
529
     * - decoding: set by lavc\
530
     */\
531
    uint32_t *mb_type;\
532
\
533
    /**\
534
     * log2 of the size of the block which a single vector in motion_val represents: \
535
     * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2)\
536
     * - encoding: unused\
537
     * - decoding: set by lavc\
538
     */\
539
    uint8_t motion_subsample_log2;\
540
\
541
    /**\
542
     * for some private data of the user\
543
     * - encoding: unused\
544
     * - decoding: set by user\
545
     */\
546
    void *opaque;\
547
\
548
    /**\
549
     * error\
550
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
551
     * - decoding: unused\
552
     */\
553
    uint64_t error[4];\
554
\
555
    /**\
556
     * type of the buffer (to keep track of who has to dealloc data[*])\
557
     * - encoding: set by the one who allocs it\
558
     * - decoding: set by the one who allocs it\
559
     * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
560
     */\
561
    int type;\
562
    \
563
    /**\
564
     * when decoding, this signal how much the picture must be delayed.\
565
     * extra_delay = repeat_pict / (2*fps)\
566
     * - encoding: unused\
567
     * - decoding: set by lavc\
568
     */\
569
    int repeat_pict;\
570
    \
571
    /**\
572
     * \
573
     */\
574
    int qscale_type;\
575
    \
576
    /**\
577
     * The content of the picture is interlaced.\
578
     * - encoding: set by user\
579
     * - decoding: set by lavc (default 0)\
580
     */\
581
    int interlaced_frame;\
582
    \
583
    /**\
584
     * if the content is interlaced, is top field displayed first.\
585
     * - encoding: set by user\
586
     * - decoding: set by lavc\
587
     */\
588
    int top_field_first;\
589
    \
590
    /**\
591
     * Pan scan.\
592
     * - encoding: set by user\
593
     * - decoding: set by lavc\
594
     */\
595
    AVPanScan *pan_scan;\
596
    \
597
    /**\
598
     * tell user application that palette has changed from previous frame.\
599
     * - encoding: ??? (no palette-enabled encoder yet)\
600
     * - decoding: set by lavc (default 0)\
601
     */\
602
    int palette_has_changed;\
603
    \
604
    /**\
605
     * Codec suggestion on buffer type if != 0\
606
     * - encoding: unused\
607
     * - decoding: set by lavc (before get_buffer() call))\
608
     */\
609
    int buffer_hints;\
610
\
611
    /**\
612
     * DCT coeffitients\
613
     * - encoding: unused\
614
     * - decoding: set by lavc\
615
     */\
616
    short *dct_coeff;\
617
\
618
    /**\
619
     * Motion referece frame index\
620
     * - encoding: set by user\
621
     * - decoding: set by lavc\
622
     */\
623
    int8_t *ref_index[2];
624

    
625
#define FF_QSCALE_TYPE_MPEG1        0
626
#define FF_QSCALE_TYPE_MPEG2        1
627

    
628
#define FF_BUFFER_TYPE_INTERNAL 1
629
#define FF_BUFFER_TYPE_USER     2 ///< Direct rendering buffers (image is (de)allocated by user)
630
#define FF_BUFFER_TYPE_SHARED   4 ///< buffer from somewher else, dont dealloc image (data/base), all other tables are not shared
631
#define FF_BUFFER_TYPE_COPY     8 ///< just a (modified) copy of some other buffer, dont dealloc anything
632

    
633

    
634
#define FF_I_TYPE 1 // Intra
635
#define FF_P_TYPE 2 // Predicted
636
#define FF_B_TYPE 3 // Bi-dir predicted
637
#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
638
#define FF_SI_TYPE 5
639
#define FF_SP_TYPE 6
640

    
641
#define FF_BUFFER_HINTS_VALID    0x01 // Buffer hints value is meaningful (if 0 ignore)
642
#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
643
#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
644
#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
645

    
646
/**
647
 * Audio Video Frame.
648
 */
649
typedef struct AVFrame {
650
    FF_COMMON_FRAME
651
} AVFrame;
652

    
653
#define DEFAULT_FRAME_RATE_BASE 1001000
654

    
655
/**
656
 * Used by av_log
657
 */
658
typedef struct AVCLASS AVClass;
659
struct AVCLASS {
660
    const char* class_name;
661
    const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext
662
                                        or AVFormatContext, which begin with an AVClass.
663
                                        Needed because av_log is in libavcodec and has no visibility
664
                                        of AVIn/OutputFormat */
665
};
666

    
667
/**
668
 * main external api structure.
669
 */
670
typedef struct AVCodecContext {
671
    /**
672
     * Info on struct for av_log
673
     * - set by avcodec_alloc_context
674
     */
675
    AVClass *av_class;
676
    /**
677
     * the average bitrate.
678
     * - encoding: set by user. unused for constant quantizer encoding
679
     * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream 
680
     */
681
    int bit_rate;
682

    
683
    /**
684
     * number of bits the bitstream is allowed to diverge from the reference.
685
     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
686
     * - encoding: set by user. unused for constant quantizer encoding
687
     * - decoding: unused
688
     */
689
    int bit_rate_tolerance; 
690

    
691
    /**
692
     * CODEC_FLAG_*.
693
     * - encoding: set by user.
694
     * - decoding: set by user.
695
     */
696
    int flags;
697

    
698
    /**
699
     * some codecs needs additionnal format info. It is stored here
700
     * - encoding: set by user. 
701
     * - decoding: set by lavc. (FIXME is this ok?)
702
     */
703
    int sub_id;
704

    
705
    /**
706
     * motion estimation algorithm used for video coding.
707
     * - encoding: MUST be set by user.
708
     * - decoding: unused
709
     */
710
    int me_method;
711

    
712
    /**
713
     * some codecs need / can use extra-data like huffman tables.
714
     * mjpeg: huffman tables
715
     * rv10: additional flags
716
     * mpeg4: global headers (they can be in the bitstream or here)
717
     * the allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
718
     * then extradata_size to avoid prolems if its read with the bitstream reader
719
     * - encoding: set/allocated/freed by lavc.
720
     * - decoding: set/allocated/freed by user.
721
     */
722
    void *extradata;
723
    int extradata_size;
724
    
725
    /* video only */
726
    /**
727
     * time base in which the timestamps are specified.
728
     * - encoding: MUST be set by user
729
     * - decoding: set by lavc.
730
     */
731
    AVRational time_base;
732
    
733
    /**
734
     * picture width / height.
735
     * - encoding: MUST be set by user. 
736
     * - decoding: set by lavc.
737
     * Note, for compatibility its possible to set this instead of 
738
     * coded_width/height before decoding
739
     */
740
    int width, height;
741
    
742
#define FF_ASPECT_EXTENDED 15
743

    
744
    /**
745
     * the number of pictures in a group of pitures, or 0 for intra_only.
746
     * - encoding: set by user.
747
     * - decoding: unused
748
     */
749
    int gop_size;
750

    
751
    /**
752
     * pixel format, see PIX_FMT_xxx.
753
     * - encoding: set by user.
754
     * - decoding: set by lavc.
755
     */
756
    enum PixelFormat pix_fmt;
757
 
758
    /**
759
     * Frame rate emulation. If not zero lower layer (i.e. format handler) 
760
     * has to read frames at native frame rate.
761
     * - encoding: set by user.
762
     * - decoding: unused.
763
     */
764
    int rate_emu;
765
       
766
    /**
767
     * if non NULL, 'draw_horiz_band' is called by the libavcodec
768
     * decoder to draw an horizontal band. It improve cache usage. Not
769
     * all codecs can do that. You must check the codec capabilities
770
     * before
771
     * - encoding: unused
772
     * - decoding: set by user.
773
     * @param height the height of the slice
774
     * @param y the y position of the slice
775
     * @param type 1->top field, 2->bottom field, 3->frame
776
     * @param offset offset into the AVFrame.data from which the slice should be read
777
     */
778
    void (*draw_horiz_band)(struct AVCodecContext *s,
779
                            const AVFrame *src, int offset[4],
780
                            int y, int type, int height);
781

    
782
    /* audio only */
783
    int sample_rate; ///< samples per sec 
784
    int channels;
785

    
786
    /**
787
     * audio sample format.
788
     * - encoding: set by user.
789
     * - decoding: set by lavc.
790
     */
791
    enum SampleFormat sample_fmt;  ///< sample format, currenly unused 
792

    
793
    /* the following data should not be initialized */
794
    int frame_size;     ///< in samples, initialized when calling 'init' 
795
    int frame_number;   ///< audio or video frame number 
796
    int real_pict_num;  ///< returns the real picture number of previous encoded frame 
797
    
798
    /**
799
     * number of frames the decoded output will be delayed relative to 
800
     * the encoded input.
801
     * - encoding: set by lavc.
802
     * - decoding: unused
803
     */
804
    int delay;
805
    
806
    /* - encoding parameters */
807
    float qcompress;  ///< amount of qscale change between easy & hard scenes (0.0-1.0)
808
    float qblur;      ///< amount of qscale smoothing over time (0.0-1.0) 
809
    
810
    /**
811
     * minimum quantizer.
812
     * - encoding: set by user.
813
     * - decoding: unused
814
     */
815
    int qmin;
816

    
817
    /**
818
     * maximum quantizer.
819
     * - encoding: set by user.
820
     * - decoding: unused
821
     */
822
    int qmax;
823

    
824
    /**
825
     * maximum quantizer difference etween frames.
826
     * - encoding: set by user.
827
     * - decoding: unused
828
     */
829
    int max_qdiff;
830

    
831
    /**
832
     * maximum number of b frames between non b frames.
833
     * note: the output will be delayed by max_b_frames+1 relative to the input
834
     * - encoding: set by user.
835
     * - decoding: unused
836
     */
837
    int max_b_frames;
838

    
839
    /**
840
     * qscale factor between ip and b frames.
841
     * - encoding: set by user.
842
     * - decoding: unused
843
     */
844
    float b_quant_factor;
845
    
846
    /** obsolete FIXME remove */
847
    int rc_strategy;
848
    int b_frame_strategy;
849

    
850
    /**
851
     * hurry up amount.
852
     * - encoding: unused
853
     * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
854
     */
855
    int hurry_up;
856
    
857
    struct AVCodec *codec;
858
    
859
    void *priv_data;
860

    
861
    /* unused, FIXME remove*/
862
    int rtp_mode;
863
    
864
    int rtp_payload_size;   /* The size of the RTP payload, the coder will  */
865
                            /* do it's best to deliver a chunk with size    */
866
                            /* below rtp_payload_size, the chunk will start */
867
                            /* with a start code on some codecs like H.263  */
868
                            /* This doesn't take account of any particular  */
869
                            /* headers inside the transmited RTP payload    */
870

    
871
    
872
    /* The RTP callcack: This function is called  */
873
    /* every time the encoder as a packet to send */
874
    /* Depends on the encoder if the data starts  */
875
    /* with a Start Code (it should) H.263 does.  */
876
    /* mb_nb contains the number of macroblocks   */
877
    /* encoded in the RTP payload                 */
878
    void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb); 
879

    
880
    /* statistics, used for 2-pass encoding */
881
    int mv_bits;
882
    int header_bits;
883
    int i_tex_bits;
884
    int p_tex_bits;
885
    int i_count;
886
    int p_count;
887
    int skip_count;
888
    int misc_bits;
889
    
890
    /**
891
     * number of bits used for the previously encoded frame.
892
     * - encoding: set by lavc
893
     * - decoding: unused
894
     */
895
    int frame_bits;
896

    
897
    /**
898
     * private data of the user, can be used to carry app specific stuff.
899
     * - encoding: set by user
900
     * - decoding: set by user
901
     */
902
    void *opaque;
903

    
904
    char codec_name[32];
905
    enum CodecType codec_type; /* see CODEC_TYPE_xxx */
906
    enum CodecID codec_id; /* see CODEC_ID_xxx */
907
    
908
    /**
909
     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
910
     * this is used to workaround some encoder bugs
911
     * - encoding: set by user, if not then the default based on codec_id will be used
912
     * - decoding: set by user, will be converted to upper case by lavc during init
913
     */
914
    unsigned int codec_tag;
915
    
916
    /**
917
     * workaround bugs in encoders which sometimes cannot be detected automatically.
918
     * - encoding: set by user
919
     * - decoding: set by user
920
     */
921
    int workaround_bugs;
922
#define FF_BUG_AUTODETECT       1  ///< autodetection
923
#define FF_BUG_OLD_MSMPEG4      2
924
#define FF_BUG_XVID_ILACE       4
925
#define FF_BUG_UMP4             8
926
#define FF_BUG_NO_PADDING       16
927
#define FF_BUG_AMV              32
928
#define FF_BUG_AC_VLC           0  ///< will be removed, libavcodec can now handle these non compliant files by default
929
#define FF_BUG_QPEL_CHROMA      64
930
#define FF_BUG_STD_QPEL         128
931
#define FF_BUG_QPEL_CHROMA2     256
932
#define FF_BUG_DIRECT_BLOCKSIZE 512
933
#define FF_BUG_EDGE             1024
934
#define FF_BUG_HPEL_CHROMA      2048
935
#define FF_BUG_DC_CLIP          4096
936
#define FF_BUG_MS               8192 ///< workaround various bugs in microsofts broken decoders
937
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
938
        
939
    /**
940
     * luma single coeff elimination threshold.
941
     * - encoding: set by user
942
     * - decoding: unused
943
     */
944
    int luma_elim_threshold;
945
    
946
    /**
947
     * chroma single coeff elimination threshold.
948
     * - encoding: set by user
949
     * - decoding: unused
950
     */
951
    int chroma_elim_threshold;
952
    
953
    /**
954
     * strictly follow the std (MPEG4, ...).
955
     * - encoding: set by user
956
     * - decoding: unused
957
     */
958
    int strict_std_compliance;
959
#define FF_COMPLIANCE_VERY_STRICT   2 ///< strictly conform to a older more strict version of the spec or reference software
960
#define FF_COMPLIANCE_STRICT        1 ///< strictly conform to all the things in the spec no matter what consequences
961
#define FF_COMPLIANCE_NORMAL        0
962
#define FF_COMPLIANCE_INOFFICIAL   -1 ///< allow inofficial extensions
963
#define FF_COMPLIANCE_EXPERIMENTAL -2 ///< allow non standarized experimental things
964

    
965
    /**
966
     * qscale offset between ip and b frames.
967
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
968
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
969
     * - encoding: set by user.
970
     * - decoding: unused
971
     */
972
    float b_quant_offset;
973
    
974
    /**
975
     * error resilience higher values will detect more errors but may missdetect
976
     * some more or less valid parts as errors.
977
     * - encoding: unused
978
     * - decoding: set by user
979
     */
980
    int error_resilience;
981
#define FF_ER_CAREFULL        1
982
#define FF_ER_COMPLIANT       2
983
#define FF_ER_AGGRESSIVE      3
984
#define FF_ER_VERY_AGGRESSIVE 4
985
    
986
    /**
987
     * called at the beginning of each frame to get a buffer for it.
988
     * if pic.reference is set then the frame will be read later by lavc
989
     * avcodec_align_dimensions() should be used to find the required width and
990
     * height, as they normally need to be rounded up to the next multiple of 16
991
     * - encoding: unused
992
     * - decoding: set by lavc, user can override
993
     */
994
    int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
995
    
996
    /**
997
     * called to release buffers which where allocated with get_buffer.
998
     * a released buffer can be reused in get_buffer()
999
     * pic.data[*] must be set to NULL
1000
     * - encoding: unused
1001
     * - decoding: set by lavc, user can override
1002
     */
1003
    void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
1004

    
1005
    /**
1006
     * if 1 the stream has a 1 frame delay during decoding.
1007
     * - encoding: set by lavc
1008
     * - decoding: set by lavc
1009
     */
1010
    int has_b_frames;
1011
    
1012
    int block_align; ///< used by some WAV based audio codecs
1013
    
1014
    int parse_only; /* - decoding only: if true, only parsing is done
1015
                       (function avcodec_parse_frame()). The frame
1016
                       data is returned. Only MPEG codecs support this now. */
1017
    
1018
    /**
1019
     * 0-> h263 quant 1-> mpeg quant.
1020
     * - encoding: set by user.
1021
     * - decoding: unused
1022
     */
1023
    int mpeg_quant;
1024
    
1025
    /**
1026
     * pass1 encoding statistics output buffer.
1027
     * - encoding: set by lavc
1028
     * - decoding: unused
1029
     */
1030
    char *stats_out;
1031
    
1032
    /**
1033
     * pass2 encoding statistics input buffer.
1034
     * concatenated stuff from stats_out of pass1 should be placed here
1035
     * - encoding: allocated/set/freed by user
1036
     * - decoding: unused
1037
     */
1038
    char *stats_in;
1039
    
1040
    /**
1041
     * ratecontrol qmin qmax limiting method.
1042
     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
1043
     * - encoding: set by user.
1044
     * - decoding: unused
1045
     */
1046
    float rc_qsquish;
1047

    
1048
    float rc_qmod_amp;
1049
    int rc_qmod_freq;
1050
    
1051
    /**
1052
     * ratecontrol override, see RcOverride.
1053
     * - encoding: allocated/set/freed by user.
1054
     * - decoding: unused
1055
     */
1056
    RcOverride *rc_override;
1057
    int rc_override_count;
1058
    
1059
    /**
1060
     * rate control equation.
1061
     * - encoding: set by user
1062
     * - decoding: unused
1063
     */
1064
    char *rc_eq;
1065
    
1066
    /**
1067
     * maximum bitrate.
1068
     * - encoding: set by user.
1069
     * - decoding: unused
1070
     */
1071
    int rc_max_rate;
1072
    
1073
    /**
1074
     * minimum bitrate.
1075
     * - encoding: set by user.
1076
     * - decoding: unused
1077
     */
1078
    int rc_min_rate;
1079
    
1080
    /**
1081
     * decoder bitstream buffer size.
1082
     * - encoding: set by user.
1083
     * - decoding: unused
1084
     */
1085
    int rc_buffer_size;
1086
    float rc_buffer_aggressivity;
1087

    
1088
    /**
1089
     * qscale factor between p and i frames.
1090
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1091
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
1092
     * - encoding: set by user.
1093
     * - decoding: unused
1094
     */
1095
    float i_quant_factor;
1096
    
1097
    /**
1098
     * qscale offset between p and i frames.
1099
     * - encoding: set by user.
1100
     * - decoding: unused
1101
     */
1102
    float i_quant_offset;
1103
    
1104
    /**
1105
     * initial complexity for pass1 ratecontrol.
1106
     * - encoding: set by user.
1107
     * - decoding: unused
1108
     */
1109
    float rc_initial_cplx;
1110

    
1111
    /**
1112
     * dct algorithm, see FF_DCT_* below.
1113
     * - encoding: set by user
1114
     * - decoding: unused
1115
     */
1116
    int dct_algo;
1117
#define FF_DCT_AUTO    0
1118
#define FF_DCT_FASTINT 1
1119
#define FF_DCT_INT     2
1120
#define FF_DCT_MMX     3
1121
#define FF_DCT_MLIB    4
1122
#define FF_DCT_ALTIVEC 5
1123
#define FF_DCT_FAAN    6
1124
    
1125
    /**
1126
     * luminance masking (0-> disabled).
1127
     * - encoding: set by user
1128
     * - decoding: unused
1129
     */
1130
    float lumi_masking;
1131
    
1132
    /**
1133
     * temporary complexity masking (0-> disabled).
1134
     * - encoding: set by user
1135
     * - decoding: unused
1136
     */
1137
    float temporal_cplx_masking;
1138
    
1139
    /**
1140
     * spatial complexity masking (0-> disabled).
1141
     * - encoding: set by user
1142
     * - decoding: unused
1143
     */
1144
    float spatial_cplx_masking;
1145
    
1146
    /**
1147
     * p block masking (0-> disabled).
1148
     * - encoding: set by user
1149
     * - decoding: unused
1150
     */
1151
    float p_masking;
1152

    
1153
    /**
1154
     * darkness masking (0-> disabled).
1155
     * - encoding: set by user
1156
     * - decoding: unused
1157
     */
1158
    float dark_masking;
1159
    
1160
    
1161
    /* for binary compatibility */
1162
    int unused;
1163
    
1164
    /**
1165
     * idct algorithm, see FF_IDCT_* below.
1166
     * - encoding: set by user
1167
     * - decoding: set by user
1168
     */
1169
    int idct_algo;
1170
#define FF_IDCT_AUTO         0
1171
#define FF_IDCT_INT          1
1172
#define FF_IDCT_SIMPLE       2
1173
#define FF_IDCT_SIMPLEMMX    3
1174
#define FF_IDCT_LIBMPEG2MMX  4
1175
#define FF_IDCT_PS2          5
1176
#define FF_IDCT_MLIB         6
1177
#define FF_IDCT_ARM          7
1178
#define FF_IDCT_ALTIVEC      8
1179
#define FF_IDCT_SH4          9
1180
#define FF_IDCT_SIMPLEARM    10
1181
#define FF_IDCT_H264         11
1182
#define FF_IDCT_VP3          12
1183
#define FP_IDCT_IPP          13
1184

    
1185
    /**
1186
     * slice count.
1187
     * - encoding: set by lavc
1188
     * - decoding: set by user (or 0)
1189
     */
1190
    int slice_count;
1191
    /**
1192
     * slice offsets in the frame in bytes.
1193
     * - encoding: set/allocated by lavc
1194
     * - decoding: set/allocated by user (or NULL)
1195
     */
1196
    int *slice_offset;
1197

    
1198
    /**
1199
     * error concealment flags.
1200
     * - encoding: unused
1201
     * - decoding: set by user
1202
     */
1203
    int error_concealment;
1204
#define FF_EC_GUESS_MVS   1
1205
#define FF_EC_DEBLOCK     2
1206

    
1207
    /**
1208
     * dsp_mask could be add used to disable unwanted CPU features
1209
     * CPU features (i.e. MMX, SSE. ...)
1210
     *
1211
     * with FORCE flag you may instead enable given CPU features
1212
     * (Dangerous: usable in case of misdetection, improper usage however will
1213
     * result into program crash)
1214
     */
1215
    unsigned dsp_mask;
1216
#define FF_MM_FORCE        0x80000000 /* force usage of selected flags (OR) */
1217
    /* lower 16 bits - CPU features */
1218
#ifdef HAVE_MMX
1219
#define FF_MM_MMX        0x0001 /* standard MMX */
1220
#define FF_MM_3DNOW        0x0004 /* AMD 3DNOW */
1221
#define FF_MM_MMXEXT        0x0002 /* SSE integer functions or AMD MMX ext */
1222
#define FF_MM_SSE        0x0008 /* SSE functions */
1223
#define FF_MM_SSE2        0x0010 /* PIV SSE2 functions */
1224
#define FF_MM_3DNOWEXT        0x0020 /* AMD 3DNowExt */
1225
#endif /* HAVE_MMX */
1226

    
1227
    /**
1228
     * bits per sample/pixel from the demuxer (needed for huffyuv).
1229
     * - encoding: set by lavc
1230
     * - decoding: set by user
1231
     */
1232
     int bits_per_sample;
1233
    
1234
    /**
1235
     * prediction method (needed for huffyuv).
1236
     * - encoding: set by user
1237
     * - decoding: unused
1238
     */
1239
     int prediction_method;
1240
#define FF_PRED_LEFT   0
1241
#define FF_PRED_PLANE  1
1242
#define FF_PRED_MEDIAN 2
1243
    
1244
    /**
1245
     * sample aspect ratio (0 if unknown).
1246
     * numerator and denominator must be relative prime and smaller then 256 for some video standards
1247
     * - encoding: set by user.
1248
     * - decoding: set by lavc.
1249
     */
1250
    AVRational sample_aspect_ratio;
1251

    
1252
    /**
1253
     * the picture in the bitstream.
1254
     * - encoding: set by lavc
1255
     * - decoding: set by lavc
1256
     */
1257
    AVFrame *coded_frame;
1258

    
1259
    /**
1260
     * debug.
1261
     * - encoding: set by user.
1262
     * - decoding: set by user.
1263
     */
1264
    int debug;
1265
#define FF_DEBUG_PICT_INFO 1
1266
#define FF_DEBUG_RC        2
1267
#define FF_DEBUG_BITSTREAM 4
1268
#define FF_DEBUG_MB_TYPE   8
1269
#define FF_DEBUG_QP        16
1270
#define FF_DEBUG_MV        32
1271
#define FF_DEBUG_DCT_COEFF 0x00000040
1272
#define FF_DEBUG_SKIP      0x00000080
1273
#define FF_DEBUG_STARTCODE 0x00000100
1274
#define FF_DEBUG_PTS       0x00000200
1275
#define FF_DEBUG_ER        0x00000400
1276
#define FF_DEBUG_MMCO      0x00000800
1277
#define FF_DEBUG_BUGS      0x00001000
1278
#define FF_DEBUG_VIS_QP    0x00002000
1279
#define FF_DEBUG_VIS_MB_TYPE 0x00004000
1280
    
1281
    /**
1282
     * debug.
1283
     * - encoding: set by user.
1284
     * - decoding: set by user.
1285
     */
1286
    int debug_mv;
1287
#define FF_DEBUG_VIS_MV_P_FOR  0x00000001 //visualize forward predicted MVs of P frames
1288
#define FF_DEBUG_VIS_MV_B_FOR  0x00000002 //visualize forward predicted MVs of B frames
1289
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1290

    
1291
    /**
1292
     * error.
1293
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1294
     * - decoding: unused
1295
     */
1296
    uint64_t error[4];
1297
    
1298
    /**
1299
     * minimum MB quantizer.
1300
     * - encoding: unused
1301
     * - decoding: unused
1302
     */
1303
    int mb_qmin;
1304

    
1305
    /**
1306
     * maximum MB quantizer.
1307
     * - encoding: unused
1308
     * - decoding: unused
1309
     */
1310
    int mb_qmax;
1311
    
1312
    /**
1313
     * motion estimation compare function.
1314
     * - encoding: set by user.
1315
     * - decoding: unused
1316
     */
1317
    int me_cmp;
1318
    /**
1319
     * subpixel motion estimation compare function.
1320
     * - encoding: set by user.
1321
     * - decoding: unused
1322
     */
1323
    int me_sub_cmp;
1324
    /**
1325
     * macroblock compare function (not supported yet).
1326
     * - encoding: set by user.
1327
     * - decoding: unused
1328
     */
1329
    int mb_cmp;
1330
    /**
1331
     * interlaced dct compare function
1332
     * - encoding: set by user.
1333
     * - decoding: unused
1334
     */
1335
    int ildct_cmp;
1336
#define FF_CMP_SAD  0
1337
#define FF_CMP_SSE  1
1338
#define FF_CMP_SATD 2
1339
#define FF_CMP_DCT  3
1340
#define FF_CMP_PSNR 4
1341
#define FF_CMP_BIT  5
1342
#define FF_CMP_RD   6
1343
#define FF_CMP_ZERO 7
1344
#define FF_CMP_VSAD 8
1345
#define FF_CMP_VSSE 9
1346
#define FF_CMP_NSSE 10
1347
#define FF_CMP_W53  11
1348
#define FF_CMP_W97  12
1349
#define FF_CMP_DCTMAX 13
1350
#define FF_CMP_CHROMA 256
1351
    
1352
    /**
1353
     * ME diamond size & shape.
1354
     * - encoding: set by user.
1355
     * - decoding: unused
1356
     */
1357
    int dia_size;
1358

    
1359
    /**
1360
     * amount of previous MV predictors (2a+1 x 2a+1 square).
1361
     * - encoding: set by user.
1362
     * - decoding: unused
1363
     */
1364
    int last_predictor_count;
1365

    
1366
    /**
1367
     * pre pass for motion estimation.
1368
     * - encoding: set by user.
1369
     * - decoding: unused
1370
     */
1371
    int pre_me;
1372

    
1373
    /**
1374
     * motion estimation pre pass compare function.
1375
     * - encoding: set by user.
1376
     * - decoding: unused
1377
     */
1378
    int me_pre_cmp;
1379

    
1380
    /**
1381
     * ME pre pass diamond size & shape.
1382
     * - encoding: set by user.
1383
     * - decoding: unused
1384
     */
1385
    int pre_dia_size;
1386

    
1387
    /**
1388
     * subpel ME quality.
1389
     * - encoding: set by user.
1390
     * - decoding: unused
1391
     */
1392
    int me_subpel_quality;
1393

    
1394
    /**
1395
     * callback to negotiate the pixelFormat.
1396
     * @param fmt is the list of formats which are supported by the codec,
1397
     * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1398
     * the first is allways the native one
1399
     * @return the choosen format
1400
     * - encoding: unused
1401
     * - decoding: set by user, if not set then the native format will always be choosen
1402
     */
1403
    enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
1404

    
1405
    /**
1406
     * DTG active format information (additionnal aspect ratio
1407
     * information only used in DVB MPEG2 transport streams). 0 if
1408
     * not set.
1409
     * 
1410
     * - encoding: unused.
1411
     * - decoding: set by decoder 
1412
     */
1413
    int dtg_active_format;
1414
#define FF_DTG_AFD_SAME         8
1415
#define FF_DTG_AFD_4_3          9
1416
#define FF_DTG_AFD_16_9         10
1417
#define FF_DTG_AFD_14_9         11
1418
#define FF_DTG_AFD_4_3_SP_14_9  13
1419
#define FF_DTG_AFD_16_9_SP_14_9 14
1420
#define FF_DTG_AFD_SP_4_3       15
1421

    
1422
    /**
1423
     * Maximum motion estimation search range in subpel units.
1424
     * if 0 then no limit
1425
     * 
1426
     * - encoding: set by user.
1427
     * - decoding: unused.
1428
     */
1429
    int me_range;
1430

    
1431
    /**
1432
     * intra quantizer bias.
1433
     * - encoding: set by user.
1434
     * - decoding: unused
1435
     */
1436
    int intra_quant_bias;
1437
#define FF_DEFAULT_QUANT_BIAS 999999
1438
    
1439
    /**
1440
     * inter quantizer bias.
1441
     * - encoding: set by user.
1442
     * - decoding: unused
1443
     */
1444
    int inter_quant_bias;
1445

    
1446
    /**
1447
     * color table ID.
1448
     * - encoding: unused.
1449
     * - decoding: which clrtable should be used for 8bit RGB images
1450
     *             table have to be stored somewhere FIXME
1451
     */
1452
    int color_table_id;
1453
    
1454
    /**
1455
     * internal_buffer count. 
1456
     * Dont touch, used by lavc default_get_buffer()
1457
     */
1458
    int internal_buffer_count;
1459
    
1460
    /**
1461
     * internal_buffers. 
1462
     * Dont touch, used by lavc default_get_buffer()
1463
     */
1464
    void *internal_buffer;
1465

    
1466
#define FF_LAMBDA_SHIFT 7
1467
#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1468
#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1469
#define FF_LAMBDA_MAX (256*128-1)
1470

    
1471
#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
1472
    /**
1473
     * global quality for codecs which cannot change it per frame.
1474
     * this should be proportional to MPEG1/2/4 qscale.
1475
     * - encoding: set by user.
1476
     * - decoding: unused
1477
     */
1478
    int global_quality;
1479
    
1480
#define FF_CODER_TYPE_VLC   0
1481
#define FF_CODER_TYPE_AC    1
1482
    /**
1483
     * coder type
1484
     * - encoding: set by user.
1485
     * - decoding: unused
1486
     */
1487
    int coder_type;
1488

    
1489
    /**
1490
     * context model
1491
     * - encoding: set by user.
1492
     * - decoding: unused
1493
     */
1494
    int context_model;
1495
    
1496
    /**
1497
     * slice flags
1498
     * - encoding: unused
1499
     * - decoding: set by user.
1500
     */
1501
    int slice_flags;
1502
#define SLICE_FLAG_CODED_ORDER    0x0001 ///< draw_horiz_band() is called in coded order instead of display
1503
#define SLICE_FLAG_ALLOW_FIELD    0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1504
#define SLICE_FLAG_ALLOW_PLANE    0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1505

    
1506
    /**
1507
     * XVideo Motion Acceleration
1508
     * - encoding: forbidden
1509
     * - decoding: set by decoder
1510
     */
1511
    int xvmc_acceleration;
1512
    
1513
    /**
1514
     * macroblock decision mode
1515
     * - encoding: set by user.
1516
     * - decoding: unused
1517
     */
1518
    int mb_decision;
1519
#define FF_MB_DECISION_SIMPLE 0        ///< uses mb_cmp
1520
#define FF_MB_DECISION_BITS   1        ///< chooses the one which needs the fewest bits
1521
#define FF_MB_DECISION_RD     2        ///< rate distoration
1522

    
1523
    /**
1524
     * custom intra quantization matrix
1525
     * - encoding: set by user, can be NULL
1526
     * - decoding: set by lavc
1527
     */
1528
    uint16_t *intra_matrix;
1529

    
1530
    /**
1531
     * custom inter quantization matrix
1532
     * - encoding: set by user, can be NULL
1533
     * - decoding: set by lavc
1534
     */
1535
    uint16_t *inter_matrix;
1536
    
1537
    /**
1538
     * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1539
     * this is used to workaround some encoder bugs
1540
     * - encoding: unused
1541
     * - decoding: set by user, will be converted to upper case by lavc during init
1542
     */
1543
    unsigned int stream_codec_tag;
1544

    
1545
    /**
1546
     * scene change detection threshold.
1547
     * 0 is default, larger means fewer detected scene changes
1548
     * - encoding: set by user.
1549
     * - decoding: unused
1550
     */
1551
    int scenechange_threshold;
1552

    
1553
    /**
1554
     * minimum lagrange multipler
1555
     * - encoding: set by user.
1556
     * - decoding: unused
1557
     */
1558
    int lmin;
1559

    
1560
    /**
1561
     * maximum lagrange multipler
1562
     * - encoding: set by user.
1563
     * - decoding: unused
1564
     */
1565
    int lmax;
1566

    
1567
    /**
1568
     * Palette control structure
1569
     * - encoding: ??? (no palette-enabled encoder yet)
1570
     * - decoding: set by user.
1571
     */
1572
    struct AVPaletteControl *palctrl;
1573

    
1574
    /**
1575
     * noise reduction strength
1576
     * - encoding: set by user.
1577
     * - decoding: unused
1578
     */
1579
    int noise_reduction;
1580
    
1581
    /**
1582
     * called at the beginning of a frame to get cr buffer for it.
1583
     * buffer type (size, hints) must be the same. lavc won't check it.
1584
     * lavc will pass previous buffer in pic, function should return
1585
     * same buffer or new buffer with old frame "painted" into it.
1586
     * if pic.data[0] == NULL must behave like get_buffer().
1587
     * - encoding: unused
1588
     * - decoding: set by lavc, user can override
1589
     */
1590
    int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
1591

    
1592
    /**
1593
     * number of bits which should be loaded into the rc buffer before decoding starts
1594
     * - encoding: set by user.
1595
     * - decoding: unused
1596
     */
1597
    int rc_initial_buffer_occupancy;
1598

    
1599
    /**
1600
     *
1601
     * - encoding: set by user.
1602
     * - decoding: unused
1603
     */
1604
    int inter_threshold;
1605

    
1606
    /**
1607
     * CODEC_FLAG2_*.
1608
     * - encoding: set by user.
1609
     * - decoding: set by user.
1610
     */
1611
    int flags2;
1612

    
1613
    /**
1614
     * simulates errors in the bitstream to test error concealment.
1615
     * - encoding: set by user.
1616
     * - decoding: unused.
1617
     */
1618
    int error_rate;
1619
    
1620
    /**
1621
     * MP3 antialias algorithm, see FF_AA_* below.
1622
     * - encoding: unused
1623
     * - decoding: set by user
1624
     */
1625
    int antialias_algo;
1626
#define FF_AA_AUTO    0
1627
#define FF_AA_FASTINT 1 //not implemented yet
1628
#define FF_AA_INT     2
1629
#define FF_AA_FLOAT   3
1630
    /**
1631
     * Quantizer noise shaping.
1632
     * - encoding: set by user
1633
     * - decoding: unused
1634
     */
1635
    int quantizer_noise_shaping;
1636

    
1637
    /**
1638
     * Thread count.
1639
     * is used to decide how many independant tasks should be passed to execute()
1640
     * - encoding: set by user
1641
     * - decoding: set by user
1642
     */
1643
    int thread_count;
1644
    
1645
    /**
1646
     * the codec may call this to execute several independant things. it will return only after
1647
     * finishing all tasks, the user may replace this with some multithreaded implementation, the
1648
     * default implementation will execute the parts serially
1649
     * @param count the number of things to execute
1650
     * - encoding: set by lavc, user can override
1651
     * - decoding: set by lavc, user can override
1652
     */
1653
    int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
1654
    
1655
    /**
1656
     * Thread opaque.
1657
     * can be used by execute() to store some per AVCodecContext stuff.
1658
     * - encoding: set by execute()
1659
     * - decoding: set by execute()
1660
     */
1661
    void *thread_opaque;
1662

    
1663
    /**
1664
     * Motion estimation threshold. under which no motion estimation is 
1665
     * performed, but instead the user specified motion vectors are used
1666
     * 
1667
     * - encoding: set by user
1668
     * - decoding: unused
1669
     */
1670
     int me_threshold;
1671

    
1672
    /**
1673
     * Macroblock threshold. under which the user specified macroblock types will be used
1674
     * - encoding: set by user
1675
     * - decoding: unused
1676
     */
1677
     int mb_threshold;
1678

    
1679
    /**
1680
     * precision of the intra dc coefficient - 8.
1681
     * - encoding: set by user
1682
     * - decoding: unused
1683
     */
1684
     int intra_dc_precision;
1685

    
1686
    /**
1687
     * noise vs. sse weight for the nsse comparsion function.
1688
     * - encoding: set by user
1689
     * - decoding: unused
1690
     */
1691
     int nsse_weight;
1692

    
1693
    /**
1694
     * number of macroblock rows at the top which are skipped.
1695
     * - encoding: unused
1696
     * - decoding: set by user
1697
     */
1698
     int skip_top;
1699

    
1700
    /**
1701
     * number of macroblock rows at the bottom which are skipped.
1702
     * - encoding: unused
1703
     * - decoding: set by user
1704
     */
1705
     int skip_bottom;
1706

    
1707
    /**
1708
     * profile
1709
     * - encoding: set by user
1710
     * - decoding: set by lavc
1711
     */
1712
     int profile;
1713
#define FF_PROFILE_UNKNOWN -99
1714

    
1715
    /**
1716
     * level
1717
     * - encoding: set by user
1718
     * - decoding: set by lavc
1719
     */
1720
     int level;
1721
#define FF_LEVEL_UNKNOWN -99
1722

    
1723
    /**
1724
     * low resolution decoding. 1-> 1/2 size, 2->1/4 size
1725
     * - encoding: unused
1726
     * - decoding: set by user
1727
     */
1728
     int lowres;
1729

    
1730
    /**
1731
     * bitsream width / height. may be different from width/height if lowres
1732
     * or other things are used
1733
     * - encoding: unused
1734
     * - decoding: set by user before init if known, codec should override / dynamically change if needed
1735
     */
1736
    int coded_width, coded_height;
1737

    
1738
    /**
1739
     * frame skip threshold
1740
     * - encoding: set by user
1741
     * - decoding: unused
1742
     */
1743
    int frame_skip_threshold;
1744

    
1745
    /**
1746
     * frame skip factor
1747
     * - encoding: set by user
1748
     * - decoding: unused
1749
     */
1750
    int frame_skip_factor;
1751

    
1752
    /**
1753
     * frame skip exponent
1754
     * - encoding: set by user
1755
     * - decoding: unused
1756
     */
1757
    int frame_skip_exp;
1758

    
1759
    /**
1760
     * frame skip comparission function
1761
     * - encoding: set by user.
1762
     * - decoding: unused
1763
     */
1764
    int frame_skip_cmp;
1765

    
1766
    /**
1767
     * border processing masking. raises the quantizer for mbs on the borders
1768
     * of the picture.
1769
     * - encoding: set by user
1770
     * - decoding: unused
1771
     */
1772
    float border_masking;
1773

    
1774
    /**
1775
     * minimum MB lagrange multipler.
1776
     * - encoding: set by user.
1777
     * - decoding: unused
1778
     */
1779
    int mb_lmin;
1780

    
1781
    /**
1782
     * maximum MB lagrange multipler.
1783
     * - encoding: set by user.
1784
     * - decoding: unused
1785
     */
1786
    int mb_lmax;
1787

    
1788
    /**
1789
     * 
1790
     * - encoding: set by user.
1791
     * - decoding: unused
1792
     */
1793
    int me_penalty_compensation;
1794
} AVCodecContext;
1795

    
1796

    
1797
/**
1798
 * AVOption.
1799
 */
1800
typedef struct AVOption {
1801
    /** options' name */
1802
    const char *name; /* if name is NULL, it indicates a link to next */
1803
    /** short English text help or const struct AVOption* subpointer */
1804
    const char *help; //        const struct AVOption* sub;
1805
    /** offset to context structure where the parsed value should be stored */
1806
    int offset;
1807
    /** options' type */
1808
    int type;
1809
#define FF_OPT_TYPE_BOOL 1      ///< boolean - true,1,on  (or simply presence)
1810
#define FF_OPT_TYPE_DOUBLE 2    ///< double
1811
#define FF_OPT_TYPE_INT 3       ///< integer
1812
#define FF_OPT_TYPE_STRING 4    ///< string (finished with \0)
1813
#define FF_OPT_TYPE_MASK 0x1f        ///< mask for types - upper bits are various flags
1814
//#define FF_OPT_TYPE_EXPERT 0x20 // flag for expert option
1815
#define FF_OPT_TYPE_FLAG (FF_OPT_TYPE_BOOL | 0x40)
1816
#define FF_OPT_TYPE_RCOVERRIDE (FF_OPT_TYPE_STRING | 0x80)
1817
    /** min value  (min == max   ->  no limits) */
1818
    double min;
1819
    /** maximum value for double/int */
1820
    double max;
1821
    /** default boo [0,1]l/double/int value */
1822
    double defval;
1823
    /**
1824
     * default string value (with optional semicolon delimited extra option-list
1825
     * i.e.   option1;option2;option3
1826
     * defval might select other then first argument as default
1827
     */
1828
    const char *defstr;
1829
#define FF_OPT_MAX_DEPTH 10
1830
} AVOption;
1831

    
1832
/**
1833
 * AVCodec.
1834
 */
1835
typedef struct AVCodec {
1836
    const char *name;
1837
    enum CodecType type;
1838
    enum CodecID id;
1839
    int priv_data_size;
1840
    int (*init)(AVCodecContext *);
1841
    int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
1842
    int (*close)(AVCodecContext *);
1843
    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
1844
                  uint8_t *buf, int buf_size);
1845
    int capabilities;
1846
    void *dummy; // FIXME remove next time we break binary compatibility
1847
    struct AVCodec *next;
1848
    void (*flush)(AVCodecContext *);
1849
    const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
1850
    const enum PixelFormat *pix_fmts;       ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
1851
} AVCodec;
1852

    
1853
/**
1854
 * four components are given, that's all.
1855
 * the last component is alpha
1856
 */
1857
typedef struct AVPicture {
1858
    uint8_t *data[4];
1859
    int linesize[4];       ///< number of bytes per line
1860
} AVPicture;
1861

    
1862
/**
1863
 * AVPaletteControl
1864
 * This structure defines a method for communicating palette changes
1865
 * between and demuxer and a decoder.
1866
 */
1867
#define AVPALETTE_SIZE 1024
1868
#define AVPALETTE_COUNT 256
1869
typedef struct AVPaletteControl {
1870

    
1871
    /* demuxer sets this to 1 to indicate the palette has changed;
1872
     * decoder resets to 0 */
1873
    int palette_changed;
1874

    
1875
    /* 4-byte ARGB palette entries, stored in native byte order; note that
1876
     * the individual palette components should be on a 8-bit scale; if
1877
     * the palette data comes from a IBM VGA native format, the component
1878
     * data is probably 6 bits in size and needs to be scaled */
1879
    unsigned int palette[AVPALETTE_COUNT];
1880

    
1881
} AVPaletteControl;
1882

    
1883
extern AVCodec ac3_encoder;
1884
extern AVCodec mp2_encoder;
1885
extern AVCodec mp3lame_encoder;
1886
extern AVCodec oggvorbis_encoder;
1887
extern AVCodec oggtheora_encoder;
1888
extern AVCodec faac_encoder;
1889
extern AVCodec xvid_encoder;
1890
extern AVCodec mpeg1video_encoder;
1891
extern AVCodec mpeg2video_encoder;
1892
extern AVCodec h261_encoder;
1893
extern AVCodec h263_encoder;
1894
extern AVCodec h263p_encoder;
1895
extern AVCodec flv_encoder;
1896
extern AVCodec rv10_encoder;
1897
extern AVCodec rv20_encoder;
1898
extern AVCodec dvvideo_encoder;
1899
extern AVCodec mjpeg_encoder;
1900
extern AVCodec ljpeg_encoder;
1901
extern AVCodec png_encoder;
1902
extern AVCodec ppm_encoder;
1903
extern AVCodec pgm_encoder;
1904
extern AVCodec pgmyuv_encoder;
1905
extern AVCodec pbm_encoder;
1906
extern AVCodec pam_encoder;
1907
extern AVCodec mpeg4_encoder;
1908
extern AVCodec msmpeg4v1_encoder;
1909
extern AVCodec msmpeg4v2_encoder;
1910
extern AVCodec msmpeg4v3_encoder;
1911
extern AVCodec wmv1_encoder;
1912
extern AVCodec wmv2_encoder;
1913
extern AVCodec huffyuv_encoder;
1914
extern AVCodec ffvhuff_encoder;
1915
extern AVCodec h264_encoder;
1916
extern AVCodec asv1_encoder;
1917
extern AVCodec asv2_encoder;
1918
extern AVCodec vcr1_encoder;
1919
extern AVCodec ffv1_encoder;
1920
extern AVCodec snow_encoder;
1921
extern AVCodec mdec_encoder;
1922
extern AVCodec zlib_encoder;
1923
extern AVCodec sonic_encoder;
1924
extern AVCodec sonic_ls_encoder;
1925
extern AVCodec svq1_encoder;
1926
extern AVCodec x264_encoder;
1927

    
1928
extern AVCodec h263_decoder;
1929
extern AVCodec h261_decoder;
1930
extern AVCodec mpeg4_decoder;
1931
extern AVCodec msmpeg4v1_decoder;
1932
extern AVCodec msmpeg4v2_decoder;
1933
extern AVCodec msmpeg4v3_decoder;
1934
extern AVCodec wmv1_decoder;
1935
extern AVCodec wmv2_decoder;
1936
extern AVCodec vc9_decoder;
1937
extern AVCodec wmv3_decoder;
1938
extern AVCodec mpeg1video_decoder;
1939
extern AVCodec mpeg2video_decoder;
1940
extern AVCodec mpegvideo_decoder;
1941
extern AVCodec mpeg_xvmc_decoder;
1942
extern AVCodec h263i_decoder;
1943
extern AVCodec flv_decoder;
1944
extern AVCodec rv10_decoder;
1945
extern AVCodec rv20_decoder;
1946
extern AVCodec rv30_decoder;
1947
extern AVCodec rv40_decoder;
1948
extern AVCodec svq1_decoder;
1949
extern AVCodec svq3_decoder;
1950
extern AVCodec dvvideo_decoder;
1951
extern AVCodec wmav1_decoder;
1952
extern AVCodec wmav2_decoder;
1953
extern AVCodec mjpeg_decoder;
1954
extern AVCodec mjpegb_decoder;
1955
extern AVCodec sp5x_decoder;
1956
extern AVCodec png_decoder;
1957
extern AVCodec mp2_decoder;
1958
extern AVCodec mp3_decoder;
1959
extern AVCodec mp3adu_decoder;
1960
extern AVCodec mp3on4_decoder;
1961
extern AVCodec mace3_decoder;
1962
extern AVCodec mace6_decoder;
1963
extern AVCodec huffyuv_decoder;
1964
extern AVCodec ffvhuff_decoder;
1965
extern AVCodec oggvorbis_decoder;
1966
extern AVCodec oggtheora_decoder;
1967
extern AVCodec cyuv_decoder;
1968
extern AVCodec h264_decoder;
1969
extern AVCodec indeo3_decoder;
1970
extern AVCodec vp3_decoder;
1971
extern AVCodec theora_decoder;
1972
extern AVCodec amr_nb_decoder;
1973
extern AVCodec amr_nb_encoder;
1974
extern AVCodec amr_wb_encoder;
1975
extern AVCodec amr_wb_decoder;
1976
extern AVCodec aac_decoder;
1977
extern AVCodec mpeg4aac_decoder;
1978
extern AVCodec asv1_decoder;
1979
extern AVCodec asv2_decoder;
1980
extern AVCodec vcr1_decoder;
1981
extern AVCodec cljr_decoder;
1982
extern AVCodec ffv1_decoder;
1983
extern AVCodec snow_decoder;
1984
extern AVCodec fourxm_decoder;
1985
extern AVCodec mdec_decoder;
1986
extern AVCodec roq_decoder;
1987
extern AVCodec interplay_video_decoder;
1988
extern AVCodec xan_wc3_decoder;
1989
extern AVCodec rpza_decoder;
1990
extern AVCodec cinepak_decoder;
1991
extern AVCodec msrle_decoder;
1992
extern AVCodec msvideo1_decoder;
1993
extern AVCodec vqa_decoder;
1994
extern AVCodec idcin_decoder;
1995
extern AVCodec eightbps_decoder;
1996
extern AVCodec smc_decoder;
1997
extern AVCodec flic_decoder;
1998
extern AVCodec vmdvideo_decoder;
1999
extern AVCodec vmdaudio_decoder;
2000
extern AVCodec truemotion1_decoder;
2001
extern AVCodec mszh_decoder;
2002
extern AVCodec zlib_decoder;
2003
extern AVCodec ra_144_decoder;
2004
extern AVCodec ra_288_decoder;
2005
extern AVCodec roq_dpcm_decoder;
2006
extern AVCodec interplay_dpcm_decoder;
2007
extern AVCodec xan_dpcm_decoder;
2008
extern AVCodec sol_dpcm_decoder;
2009
extern AVCodec sonic_decoder;
2010
extern AVCodec qtrle_decoder;
2011
extern AVCodec flac_decoder;
2012
extern AVCodec tscc_decoder;
2013
extern AVCodec ulti_decoder;
2014
extern AVCodec qdraw_decoder;
2015
extern AVCodec xl_decoder;
2016
extern AVCodec qpeg_decoder;
2017
extern AVCodec shorten_decoder;
2018
extern AVCodec loco_decoder;
2019
extern AVCodec wnv1_decoder;
2020
extern AVCodec aasc_decoder;
2021
extern AVCodec alac_decoder;
2022
extern AVCodec ws_snd1_decoder;
2023
extern AVCodec indeo2_decoder;
2024
extern AVCodec vorbis_decoder;
2025
extern AVCodec fraps_decoder;
2026
extern AVCodec libgsm_encoder;
2027
extern AVCodec libgsm_decoder;
2028

    
2029
/* pcm codecs */
2030
#define PCM_CODEC(id, name) \
2031
extern AVCodec name ## _decoder; \
2032
extern AVCodec name ## _encoder
2033

    
2034
PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
2035
PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
2036
PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
2037
PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
2038
PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
2039
PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
2040
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
2041
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
2042

    
2043
/* adpcm codecs */
2044

    
2045
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
2046
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
2047
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
2048
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
2049
PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
2050
PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
2051
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
2052
PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
2053
PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
2054
PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
2055
PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
2056
PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
2057
PCM_CODEC(CODEC_ID_ADPCM_CT, adpcm_ct);
2058
PCM_CODEC(CODEC_ID_ADPCM_SWF, adpcm_swf);
2059

    
2060
#undef PCM_CODEC
2061

    
2062
/* dummy raw video codec */
2063
extern AVCodec rawvideo_encoder;
2064
extern AVCodec rawvideo_decoder;
2065

    
2066
/* the following codecs use external GPL libs */
2067
extern AVCodec ac3_decoder;
2068
extern AVCodec dts_decoder;
2069

    
2070
/* resample.c */
2071

    
2072
struct ReSampleContext;
2073
struct AVResampleContext;
2074

    
2075
typedef struct ReSampleContext ReSampleContext;
2076

    
2077
ReSampleContext *audio_resample_init(int output_channels, int input_channels, 
2078
                                     int output_rate, int input_rate);
2079
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
2080
void audio_resample_close(ReSampleContext *s);
2081

    
2082
struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
2083
int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
2084
void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
2085
void av_resample_close(struct AVResampleContext *c);
2086

    
2087
/* YUV420 format is assumed ! */
2088

    
2089
struct ImgReSampleContext;
2090

    
2091
typedef struct ImgReSampleContext ImgReSampleContext;
2092

    
2093
ImgReSampleContext *img_resample_init(int output_width, int output_height,
2094
                                      int input_width, int input_height);
2095

    
2096
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
2097
                                      int iwidth, int iheight,
2098
                                      int topBand, int bottomBand,
2099
                                      int leftBand, int rightBand,
2100
                                      int padtop, int padbottom,
2101
                                      int padleft, int padright);
2102

    
2103

    
2104
void img_resample(ImgReSampleContext *s, 
2105
                  AVPicture *output, const AVPicture *input);
2106

    
2107
void img_resample_close(ImgReSampleContext *s);
2108

    
2109
/**
2110
 * Allocate memory for a picture.  Call avpicture_free to free it.
2111
 *
2112
 * @param picture the picture to be filled in.
2113
 * @param pix_fmt the format of the picture.
2114
 * @param width the width of the picture.
2115
 * @param height the height of the picture.
2116
 * @return 0 if successful, -1 if not.
2117
 */
2118
int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
2119

    
2120
/* Free a picture previously allocated by avpicture_alloc. */
2121
void avpicture_free(AVPicture *picture);
2122

    
2123
int avpicture_fill(AVPicture *picture, uint8_t *ptr,
2124
                   int pix_fmt, int width, int height);
2125
int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
2126
                     unsigned char *dest, int dest_size);
2127
int avpicture_get_size(int pix_fmt, int width, int height);
2128
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
2129
const char *avcodec_get_pix_fmt_name(int pix_fmt);
2130
void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
2131
enum PixelFormat avcodec_get_pix_fmt(const char* name);
2132
unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat p);
2133

    
2134
#define FF_LOSS_RESOLUTION  0x0001 /* loss due to resolution change */
2135
#define FF_LOSS_DEPTH       0x0002 /* loss due to color depth change */
2136
#define FF_LOSS_COLORSPACE  0x0004 /* loss due to color space conversion */
2137
#define FF_LOSS_ALPHA       0x0008 /* loss of alpha bits */
2138
#define FF_LOSS_COLORQUANT  0x0010 /* loss due to color quantization */
2139
#define FF_LOSS_CHROMA      0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
2140

    
2141
int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
2142
                             int has_alpha);
2143
int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
2144
                              int has_alpha, int *loss_ptr);
2145

    
2146
#define FF_ALPHA_TRANSP       0x0001 /* image has some totally transparent pixels */
2147
#define FF_ALPHA_SEMI_TRANSP  0x0002 /* image has some transparent pixels */
2148
int img_get_alpha_info(const AVPicture *src,
2149
                       int pix_fmt, int width, int height);
2150

    
2151
/* convert among pixel formats */
2152
int img_convert(AVPicture *dst, int dst_pix_fmt,
2153
                const AVPicture *src, int pix_fmt, 
2154
                int width, int height);
2155

    
2156
/* deinterlace a picture */
2157
int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
2158
                          int pix_fmt, int width, int height);
2159

    
2160
/* external high level API */
2161

    
2162
extern AVCodec *first_avcodec;
2163

    
2164
/* returns LIBAVCODEC_VERSION_INT constant */
2165
unsigned avcodec_version(void);
2166
/* returns LIBAVCODEC_BUILD constant */
2167
unsigned avcodec_build(void);
2168
void avcodec_init(void);
2169

    
2170
void register_avcodec(AVCodec *format);
2171
AVCodec *avcodec_find_encoder(enum CodecID id);
2172
AVCodec *avcodec_find_encoder_by_name(const char *name);
2173
AVCodec *avcodec_find_decoder(enum CodecID id);
2174
AVCodec *avcodec_find_decoder_by_name(const char *name);
2175
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
2176

    
2177
void avcodec_get_context_defaults(AVCodecContext *s);
2178
AVCodecContext *avcodec_alloc_context(void);
2179
void avcodec_get_frame_defaults(AVFrame *pic);
2180
AVFrame *avcodec_alloc_frame(void);
2181

    
2182
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
2183
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
2184
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
2185
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
2186
int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h);
2187
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
2188

    
2189
int avcodec_thread_init(AVCodecContext *s, int thread_count);
2190
void avcodec_thread_free(AVCodecContext *s);
2191
int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2192
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2193
//FIXME func typedef
2194

    
2195
/**
2196
 * opens / inits the AVCodecContext.
2197
 * not thread save!
2198
 */
2199
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
2200

    
2201
int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples, 
2202
                         int *frame_size_ptr,
2203
                         uint8_t *buf, int buf_size);
2204
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture, 
2205
                         int *got_picture_ptr,
2206
                         uint8_t *buf, int buf_size);
2207
int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata, 
2208
                        int *data_size_ptr,
2209
                        uint8_t *buf, int buf_size);
2210
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
2211
                         const short *samples);
2212
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
2213
                         const AVFrame *pict);
2214

    
2215
int avcodec_close(AVCodecContext *avctx);
2216

    
2217
void avcodec_register_all(void);
2218

    
2219
void avcodec_flush_buffers(AVCodecContext *avctx);
2220

    
2221
void avcodec_default_free_buffers(AVCodecContext *s);
2222

    
2223
/* misc usefull functions */
2224

    
2225
/**
2226
 * returns a single letter to describe the picture type
2227
 */
2228
char av_get_pict_type_char(int pict_type);
2229

    
2230
/**
2231
 * reduce a fraction.
2232
 * this is usefull for framerate calculations
2233
 * @param max the maximum allowed for dst_nom & dst_den
2234
 * @return 1 if exact, 0 otherwise
2235
 */
2236
int av_reduce(int *dst_nom, int *dst_den, int64_t nom, int64_t den, int64_t max);
2237

    
2238
/**
2239
 * rescale a 64bit integer with rounding to nearest.
2240
 * a simple a*b/c isnt possible as it can overflow
2241
 */
2242
int64_t av_rescale(int64_t a, int64_t b, int64_t c);
2243

    
2244
/**
2245
 * rescale a 64bit integer with specified rounding.
2246
 * a simple a*b/c isnt possible as it can overflow
2247
 */
2248
int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding);
2249

    
2250
/**
2251
 * rescale a 64bit integer by 2 rational numbers.
2252
 */
2253
int64_t av_rescale_q(int64_t a, AVRational bq, AVRational cq);
2254

    
2255
/* frame parsing */
2256
typedef struct AVCodecParserContext {
2257
    void *priv_data;
2258
    struct AVCodecParser *parser;
2259
    int64_t frame_offset; /* offset of the current frame */
2260
    int64_t cur_offset; /* current offset 
2261
                           (incremented by each av_parser_parse()) */
2262
    int64_t last_frame_offset; /* offset of the last frame */
2263
    /* video info */
2264
    int pict_type; /* XXX: put it back in AVCodecContext */
2265
    int repeat_pict; /* XXX: put it back in AVCodecContext */
2266
    int64_t pts;     /* pts of the current frame */
2267
    int64_t dts;     /* dts of the current frame */
2268

    
2269
    /* private data */
2270
    int64_t last_pts;
2271
    int64_t last_dts;
2272
    int fetch_timestamp;
2273

    
2274
#define AV_PARSER_PTS_NB 4
2275
    int cur_frame_start_index;
2276
    int64_t cur_frame_offset[AV_PARSER_PTS_NB];
2277
    int64_t cur_frame_pts[AV_PARSER_PTS_NB];
2278
    int64_t cur_frame_dts[AV_PARSER_PTS_NB];
2279
} AVCodecParserContext;
2280

    
2281
typedef struct AVCodecParser {
2282
    int codec_ids[5]; /* several codec IDs are permitted */
2283
    int priv_data_size;
2284
    int (*parser_init)(AVCodecParserContext *s);
2285
    int (*parser_parse)(AVCodecParserContext *s, 
2286
                        AVCodecContext *avctx,
2287
                        uint8_t **poutbuf, int *poutbuf_size, 
2288
                        const uint8_t *buf, int buf_size);
2289
    void (*parser_close)(AVCodecParserContext *s);
2290
    struct AVCodecParser *next;
2291
} AVCodecParser;
2292

    
2293
extern AVCodecParser *av_first_parser;
2294

    
2295
void av_register_codec_parser(AVCodecParser *parser);
2296
AVCodecParserContext *av_parser_init(int codec_id);
2297
int av_parser_parse(AVCodecParserContext *s, 
2298
                    AVCodecContext *avctx,
2299
                    uint8_t **poutbuf, int *poutbuf_size, 
2300
                    const uint8_t *buf, int buf_size,
2301
                    int64_t pts, int64_t dts);
2302
void av_parser_close(AVCodecParserContext *s);
2303

    
2304
extern AVCodecParser mpegvideo_parser;
2305
extern AVCodecParser mpeg4video_parser;
2306
extern AVCodecParser h261_parser;
2307
extern AVCodecParser h263_parser;
2308
extern AVCodecParser h264_parser;
2309
extern AVCodecParser mjpeg_parser;
2310
extern AVCodecParser pnm_parser;
2311
extern AVCodecParser mpegaudio_parser;
2312
extern AVCodecParser ac3_parser;
2313

    
2314
/* memory */
2315
void *av_malloc(unsigned int size);
2316
void *av_mallocz(unsigned int size);
2317
void *av_realloc(void *ptr, unsigned int size);
2318
void av_free(void *ptr);
2319
char *av_strdup(const char *s);
2320
void av_freep(void *ptr);
2321
void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
2322
/* for static data only */
2323
/* call av_free_static to release all staticaly allocated tables */
2324
void av_free_static(void);
2325
void *av_mallocz_static(unsigned int size);
2326
void *av_realloc_static(void *ptr, unsigned int size);
2327

    
2328
/* add by bero : in adx.c */
2329
int is_adx(const unsigned char *buf,size_t bufsize);
2330

    
2331
void img_copy(AVPicture *dst, const AVPicture *src,
2332
              int pix_fmt, int width, int height);
2333

    
2334
/* av_log API */
2335

    
2336
#include <stdarg.h>
2337

    
2338
#define AV_LOG_QUIET -1
2339
#define AV_LOG_ERROR 0
2340
#define AV_LOG_INFO 1
2341
#define AV_LOG_DEBUG 2
2342

    
2343
#ifdef __GNUC__
2344
extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
2345
#else
2346
extern void av_log(void*, int level, const char *fmt, ...);
2347
#endif
2348

    
2349
extern void av_vlog(void*, int level, const char *fmt, va_list);
2350
extern int av_log_get_level(void);
2351
extern void av_log_set_level(int);
2352
extern void av_log_set_callback(void (*)(void*, int, const char*, va_list));
2353

    
2354
/* endian macros */
2355
#if !defined(BE_16) || !defined(BE_32) || !defined(LE_16) || !defined(LE_32)
2356
#define BE_16(x)  ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
2357
#define BE_32(x)  ((((uint8_t*)(x))[0] << 24) | \
2358
                   (((uint8_t*)(x))[1] << 16) | \
2359
                   (((uint8_t*)(x))[2] << 8) | \
2360
                    ((uint8_t*)(x))[3])
2361
#define LE_16(x)  ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
2362
#define LE_32(x)  ((((uint8_t*)(x))[3] << 24) | \
2363
                   (((uint8_t*)(x))[2] << 16) | \
2364
                   (((uint8_t*)(x))[1] << 8) | \
2365
                    ((uint8_t*)(x))[0])
2366
#endif
2367

    
2368
extern unsigned int av_xiphlacing(unsigned char *s, unsigned int v);
2369

    
2370
#ifdef __cplusplus
2371
}
2372
#endif
2373

    
2374
#endif /* AVCODEC_H */