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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       4751
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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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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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    /* 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_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_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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/**
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 * Codec uses get_buffer() for allocating buffers.
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 * direct rendering method 1
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 */
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#define CODEC_CAP_DR1             0x0002
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/* if 'parse_only' field is true, then avcodec_parse_frame() can be
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   used */
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#define CODEC_CAP_PARSE_ONLY      0x0004
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#define CODEC_CAP_TRUNCATED       0x0008
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/* codec can export data for HW decoding (XvMC) */
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#define CODEC_CAP_HWACCEL         0x0010
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/** 
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 * codec has a non zero delay and needs to be feeded with NULL at the end to get the delayed data.
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 * if this is not set, the codec is guranteed to never be feeded with NULL data
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 */
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#define CODEC_CAP_DELAY           0x0020
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//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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/**
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 * Pan Scan area.
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 * this specifies the area which should be displayed. Note there may be multiple such areas for one frame
386
 */
387
typedef struct AVPanScan{
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    /**
389
     * id.
390
     * - encoding: set by user.
391
     * - decoding: set by lavc
392
     */
393
    int id;
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    /**
396
     * width and height in 1/16 pel
397
     * - encoding: set by user.
398
     * - decoding: set by lavc
399
     */
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    int width;
401
    int height;
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403
    /**
404
     * position of the top left corner in 1/16 pel for up to 3 fields/frames.
405
     * - encoding: set by user.
406
     * - decoding: set by lavc
407
     */
408
    int16_t position[3][2];
409
}AVPanScan;
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411
#define FF_COMMON_FRAME \
412
    /**\
413
     * pointer to the picture planes.\
414
     * this might be different from the first allocated byte\
415
     * - encoding: \
416
     * - decoding: \
417
     */\
418
    uint8_t *data[4];\
419
    int linesize[4];\
420
    /**\
421
     * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
422
     * this isnt used by lavc unless the default get/release_buffer() is used\
423
     * - encoding: \
424
     * - decoding: \
425
     */\
426
    uint8_t *base[4];\
427
    /**\
428
     * 1 -> keyframe, 0-> not\
429
     * - encoding: set by lavc\
430
     * - decoding: set by lavc\
431
     */\
432
    int key_frame;\
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\
434
    /**\
435
     * picture type of the frame, see ?_TYPE below.\
436
     * - encoding: set by lavc for coded_picture (and set by user for input)\
437
     * - decoding: set by lavc\
438
     */\
439
    int pict_type;\
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\
441
    /**\
442
     * presentation timestamp in AV_TIME_BASE (=micro seconds currently) (time when frame should be shown to user)\
443
     * if AV_NOPTS_VALUE then the frame_rate will be used as reference\
444
     * - encoding: MUST be set by user\
445
     * - decoding: set by lavc\
446
     */\
447
    int64_t pts;\
448
\
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    /**\
450
     * picture number in bitstream order.\
451
     * - encoding: set by\
452
     * - decoding: set by lavc\
453
     */\
454
    int coded_picture_number;\
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    /**\
456
     * picture number in display order.\
457
     * - encoding: set by\
458
     * - decoding: set by lavc\
459
     */\
460
    int display_picture_number;\
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\
462
    /**\
463
     * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
464
     * - encoding: set by lavc for coded_picture (and set by user for input)\
465
     * - decoding: set by lavc\
466
     */\
467
    int quality; \
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\
469
    /**\
470
     * buffer age (1->was last buffer and dint change, 2->..., ...).\
471
     * set to INT_MAX if the buffer has not been used yet \
472
     * - encoding: unused\
473
     * - decoding: MUST be set by get_buffer()\
474
     */\
475
    int age;\
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\
477
    /**\
478
     * is this picture used as reference\
479
     * - encoding: unused\
480
     * - decoding: set by lavc (before get_buffer() call))\
481
     */\
482
    int reference;\
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\
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    /**\
485
     * QP table\
486
     * - encoding: unused\
487
     * - decoding: set by lavc\
488
     */\
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    int8_t *qscale_table;\
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    /**\
491
     * QP store stride\
492
     * - encoding: unused\
493
     * - decoding: set by lavc\
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     */\
495
    int qstride;\
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\
497
    /**\
498
     * mbskip_table[mb]>=1 if MB didnt change\
499
     * stride= mb_width = (width+15)>>4\
500
     * - encoding: unused\
501
     * - decoding: set by lavc\
502
     */\
503
    uint8_t *mbskip_table;\
504
\
505
    /**\
506
     * Motion vector table.\
507
     * @code\
508
     * example:\
509
     * int mv_sample_log2= 4 - motion_subsample_log2;\
510
     * int mb_width= (width+15)>>4;\
511
     * int mv_stride= (mb_width << mv_sample_log2) + 1;\
512
     * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y];\
513
     * @endcode\
514
     * - encoding: set by user\
515
     * - decoding: set by lavc\
516
     */\
517
    int16_t (*motion_val[2])[2];\
518
\
519
    /**\
520
     * Macroblock type table\
521
     * mb_type_base + mb_width + 2\
522
     * - encoding: set by user\
523
     * - decoding: set by lavc\
524
     */\
525
    uint32_t *mb_type;\
526
\
527
    /**\
528
     * log2 of the size of the block which a single vector in motion_val represents: \
529
     * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2)\
530
     * - encoding: unused\
531
     * - decoding: set by lavc\
532
     */\
533
    uint8_t motion_subsample_log2;\
534
\
535
    /**\
536
     * for some private data of the user\
537
     * - encoding: unused\
538
     * - decoding: set by user\
539
     */\
540
    void *opaque;\
541
\
542
    /**\
543
     * error\
544
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
545
     * - decoding: unused\
546
     */\
547
    uint64_t error[4];\
548
\
549
    /**\
550
     * type of the buffer (to keep track of who has to dealloc data[*])\
551
     * - encoding: set by the one who allocs it\
552
     * - decoding: set by the one who allocs it\
553
     * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
554
     */\
555
    int type;\
556
    \
557
    /**\
558
     * when decoding, this signal how much the picture must be delayed.\
559
     * extra_delay = repeat_pict / (2*fps)\
560
     * - encoding: unused\
561
     * - decoding: set by lavc\
562
     */\
563
    int repeat_pict;\
564
    \
565
    /**\
566
     * \
567
     */\
568
    int qscale_type;\
569
    \
570
    /**\
571
     * The content of the picture is interlaced.\
572
     * - encoding: set by user\
573
     * - decoding: set by lavc (default 0)\
574
     */\
575
    int interlaced_frame;\
576
    \
577
    /**\
578
     * if the content is interlaced, is top field displayed first.\
579
     * - encoding: set by user\
580
     * - decoding: set by lavc\
581
     */\
582
    int top_field_first;\
583
    \
584
    /**\
585
     * Pan scan.\
586
     * - encoding: set by user\
587
     * - decoding: set by lavc\
588
     */\
589
    AVPanScan *pan_scan;\
590
    \
591
    /**\
592
     * tell user application that palette has changed from previous frame.\
593
     * - encoding: ??? (no palette-enabled encoder yet)\
594
     * - decoding: set by lavc (default 0)\
595
     */\
596
    int palette_has_changed;\
597
    \
598
    /**\
599
     * Codec suggestion on buffer type if != 0\
600
     * - encoding: unused\
601
     * - decoding: set by lavc (before get_buffer() call))\
602
     */\
603
    int buffer_hints;\
604
\
605
    /**\
606
     * DCT coeffitients\
607
     * - encoding: unused\
608
     * - decoding: set by lavc\
609
     */\
610
    short *dct_coeff;\
611
\
612
    /**\
613
     * Motion referece frame index\
614
     * - encoding: set by user\
615
     * - decoding: set by lavc\
616
     */\
617
    int8_t *ref_index[2];
618

    
619
#define FF_QSCALE_TYPE_MPEG1        0
620
#define FF_QSCALE_TYPE_MPEG2        1
621

    
622
#define FF_BUFFER_TYPE_INTERNAL 1
623
#define FF_BUFFER_TYPE_USER     2 ///< Direct rendering buffers (image is (de)allocated by user)
624
#define FF_BUFFER_TYPE_SHARED   4 ///< buffer from somewher else, dont dealloc image (data/base), all other tables are not shared
625
#define FF_BUFFER_TYPE_COPY     8 ///< just a (modified) copy of some other buffer, dont dealloc anything
626

    
627

    
628
#define FF_I_TYPE 1 // Intra
629
#define FF_P_TYPE 2 // Predicted
630
#define FF_B_TYPE 3 // Bi-dir predicted
631
#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
632
#define FF_SI_TYPE 5
633
#define FF_SP_TYPE 6
634

    
635
#define FF_BUFFER_HINTS_VALID    0x01 // Buffer hints value is meaningful (if 0 ignore)
636
#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
637
#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
638
#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
639

    
640
/**
641
 * Audio Video Frame.
642
 */
643
typedef struct AVFrame {
644
    FF_COMMON_FRAME
645
} AVFrame;
646

    
647
#define DEFAULT_FRAME_RATE_BASE 1001000
648

    
649
/**
650
 * Used by av_log
651
 */
652
typedef struct AVCLASS AVClass;
653
struct AVCLASS {
654
    const char* class_name;
655
    const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext
656
                                        or AVFormatContext, which begin with an AVClass.
657
                                        Needed because av_log is in libavcodec and has no visibility
658
                                        of AVIn/OutputFormat */
659
};
660

    
661
/**
662
 * main external api structure.
663
 */
664
typedef struct AVCodecContext {
665
    /**
666
     * Info on struct for av_log
667
     * - set by avcodec_alloc_context
668
     */
669
    AVClass *av_class;
670
    /**
671
     * the average bitrate.
672
     * - encoding: set by user. unused for constant quantizer encoding
673
     * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream 
674
     */
675
    int bit_rate;
676

    
677
    /**
678
     * number of bits the bitstream is allowed to diverge from the reference.
679
     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
680
     * - encoding: set by user. unused for constant quantizer encoding
681
     * - decoding: unused
682
     */
683
    int bit_rate_tolerance; 
684

    
685
    /**
686
     * CODEC_FLAG_*.
687
     * - encoding: set by user.
688
     * - decoding: set by user.
689
     */
690
    int flags;
691

    
692
    /**
693
     * some codecs needs additionnal format info. It is stored here
694
     * - encoding: set by user. 
695
     * - decoding: set by lavc. (FIXME is this ok?)
696
     */
697
    int sub_id;
698

    
699
    /**
700
     * motion estimation algorithm used for video coding.
701
     * - encoding: MUST be set by user.
702
     * - decoding: unused
703
     */
704
    int me_method;
705

    
706
    /**
707
     * some codecs need / can use extra-data like huffman tables.
708
     * mjpeg: huffman tables
709
     * rv10: additional flags
710
     * mpeg4: global headers (they can be in the bitstream or here)
711
     * the allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
712
     * then extradata_size to avoid prolems if its read with the bitstream reader
713
     * - encoding: set/allocated/freed by lavc.
714
     * - decoding: set/allocated/freed by user.
715
     */
716
    void *extradata;
717
    int extradata_size;
718
    
719
    /* video only */
720
    /**
721
     * frames per sec multiplied by frame_rate_base.
722
     * for variable fps this is the precission, so if the timestamps 
723
     * can be specified in msec precssion then this is 1000*frame_rate_base
724
     * - encoding: MUST be set by user
725
     * - decoding: set by lavc. 0 or the frame_rate if available
726
     */
727
    int frame_rate;
728
    
729
    /**
730
     * picture width / height.
731
     * - encoding: MUST be set by user. 
732
     * - decoding: set by lavc.
733
     * Note, for compatibility its possible to set this instead of 
734
     * coded_width/height before decoding
735
     */
736
    int width, height;
737
    
738
#define FF_ASPECT_EXTENDED 15
739

    
740
    /**
741
     * the number of pictures in a group of pitures, or 0 for intra_only.
742
     * - encoding: set by user.
743
     * - decoding: unused
744
     */
745
    int gop_size;
746

    
747
    /**
748
     * pixel format, see PIX_FMT_xxx.
749
     * - encoding: set by user.
750
     * - decoding: set by lavc.
751
     */
752
    enum PixelFormat pix_fmt;
753
 
754
    /**
755
     * Frame rate emulation. If not zero lower layer (i.e. format handler) 
756
     * has to read frames at native frame rate.
757
     * - encoding: set by user.
758
     * - decoding: unused.
759
     */
760
    int rate_emu;
761
       
762
    /**
763
     * if non NULL, 'draw_horiz_band' is called by the libavcodec
764
     * decoder to draw an horizontal band. It improve cache usage. Not
765
     * all codecs can do that. You must check the codec capabilities
766
     * before
767
     * - encoding: unused
768
     * - decoding: set by user.
769
     * @param height the height of the slice
770
     * @param y the y position of the slice
771
     * @param type 1->top field, 2->bottom field, 3->frame
772
     * @param offset offset into the AVFrame.data from which the slice should be read
773
     */
774
    void (*draw_horiz_band)(struct AVCodecContext *s,
775
                            const AVFrame *src, int offset[4],
776
                            int y, int type, int height);
777

    
778
    /* audio only */
779
    int sample_rate; ///< samples per sec 
780
    int channels;
781

    
782
    /**
783
     * audio sample format.
784
     * - encoding: set by user.
785
     * - decoding: set by lavc.
786
     */
787
    enum SampleFormat sample_fmt;  ///< sample format, currenly unused 
788

    
789
    /* the following data should not be initialized */
790
    int frame_size;     ///< in samples, initialized when calling 'init' 
791
    int frame_number;   ///< audio or video frame number 
792
    int real_pict_num;  ///< returns the real picture number of previous encoded frame 
793
    
794
    /**
795
     * number of frames the decoded output will be delayed relative to 
796
     * the encoded input.
797
     * - encoding: set by lavc.
798
     * - decoding: unused
799
     */
800
    int delay;
801
    
802
    /* - encoding parameters */
803
    float qcompress;  ///< amount of qscale change between easy & hard scenes (0.0-1.0)
804
    float qblur;      ///< amount of qscale smoothing over time (0.0-1.0) 
805
    
806
    /**
807
     * minimum quantizer.
808
     * - encoding: set by user.
809
     * - decoding: unused
810
     */
811
    int qmin;
812

    
813
    /**
814
     * maximum quantizer.
815
     * - encoding: set by user.
816
     * - decoding: unused
817
     */
818
    int qmax;
819

    
820
    /**
821
     * maximum quantizer difference etween frames.
822
     * - encoding: set by user.
823
     * - decoding: unused
824
     */
825
    int max_qdiff;
826

    
827
    /**
828
     * maximum number of b frames between non b frames.
829
     * note: the output will be delayed by max_b_frames+1 relative to the input
830
     * - encoding: set by user.
831
     * - decoding: unused
832
     */
833
    int max_b_frames;
834

    
835
    /**
836
     * qscale factor between ip and b frames.
837
     * - encoding: set by user.
838
     * - decoding: unused
839
     */
840
    float b_quant_factor;
841
    
842
    /** obsolete FIXME remove */
843
    int rc_strategy;
844
    int b_frame_strategy;
845

    
846
    /**
847
     * hurry up amount.
848
     * - encoding: unused
849
     * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
850
     */
851
    int hurry_up;
852
    
853
    struct AVCodec *codec;
854
    
855
    void *priv_data;
856

    
857
    /* unused, FIXME remove*/
858
    int rtp_mode;
859
    
860
    int rtp_payload_size;   /* The size of the RTP payload, the coder will  */
861
                            /* do it's best to deliver a chunk with size    */
862
                            /* below rtp_payload_size, the chunk will start */
863
                            /* with a start code on some codecs like H.263  */
864
                            /* This doesn't take account of any particular  */
865
                            /* headers inside the transmited RTP payload    */
866

    
867
    
868
    /* The RTP callcack: This function is called  */
869
    /* every time the encoder as a packet to send */
870
    /* Depends on the encoder if the data starts  */
871
    /* with a Start Code (it should) H.263 does.  */
872
    /* mb_nb contains the number of macroblocks   */
873
    /* encoded in the RTP payload                 */
874
    void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb); 
875

    
876
    /* statistics, used for 2-pass encoding */
877
    int mv_bits;
878
    int header_bits;
879
    int i_tex_bits;
880
    int p_tex_bits;
881
    int i_count;
882
    int p_count;
883
    int skip_count;
884
    int misc_bits;
885
    
886
    /**
887
     * number of bits used for the previously encoded frame.
888
     * - encoding: set by lavc
889
     * - decoding: unused
890
     */
891
    int frame_bits;
892

    
893
    /**
894
     * private data of the user, can be used to carry app specific stuff.
895
     * - encoding: set by user
896
     * - decoding: set by user
897
     */
898
    void *opaque;
899

    
900
    char codec_name[32];
901
    enum CodecType codec_type; /* see CODEC_TYPE_xxx */
902
    enum CodecID codec_id; /* see CODEC_ID_xxx */
903
    
904
    /**
905
     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
906
     * this is used to workaround some encoder bugs
907
     * - encoding: set by user, if not then the default based on codec_id will be used
908
     * - decoding: set by user, will be converted to upper case by lavc during init
909
     */
910
    unsigned int codec_tag;
911
    
912
    /**
913
     * workaround bugs in encoders which sometimes cannot be detected automatically.
914
     * - encoding: set by user
915
     * - decoding: set by user
916
     */
917
    int workaround_bugs;
918
#define FF_BUG_AUTODETECT       1  ///< autodetection
919
#define FF_BUG_OLD_MSMPEG4      2
920
#define FF_BUG_XVID_ILACE       4
921
#define FF_BUG_UMP4             8
922
#define FF_BUG_NO_PADDING       16
923
#define FF_BUG_AMV              32
924
#define FF_BUG_AC_VLC           0  ///< will be removed, libavcodec can now handle these non compliant files by default
925
#define FF_BUG_QPEL_CHROMA      64
926
#define FF_BUG_STD_QPEL         128
927
#define FF_BUG_QPEL_CHROMA2     256
928
#define FF_BUG_DIRECT_BLOCKSIZE 512
929
#define FF_BUG_EDGE             1024
930
#define FF_BUG_HPEL_CHROMA      2048
931
#define FF_BUG_DC_CLIP          4096
932
#define FF_BUG_MS               8192 ///< workaround various bugs in microsofts broken decoders
933
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
934
        
935
    /**
936
     * luma single coeff elimination threshold.
937
     * - encoding: set by user
938
     * - decoding: unused
939
     */
940
    int luma_elim_threshold;
941
    
942
    /**
943
     * chroma single coeff elimination threshold.
944
     * - encoding: set by user
945
     * - decoding: unused
946
     */
947
    int chroma_elim_threshold;
948
    
949
    /**
950
     * strictly follow the std (MPEG4, ...).
951
     * - encoding: set by user
952
     * - decoding: unused
953
     */
954
    int strict_std_compliance;
955
    
956
    /**
957
     * qscale offset between ip and b frames.
958
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
959
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
960
     * - encoding: set by user.
961
     * - decoding: unused
962
     */
963
    float b_quant_offset;
964
    
965
    /**
966
     * error resilience higher values will detect more errors but may missdetect
967
     * some more or less valid parts as errors.
968
     * - encoding: unused
969
     * - decoding: set by user
970
     */
971
    int error_resilience;
972
#define FF_ER_CAREFULL        1
973
#define FF_ER_COMPLIANT       2
974
#define FF_ER_AGGRESSIVE      3
975
#define FF_ER_VERY_AGGRESSIVE 4
976
    
977
    /**
978
     * called at the beginning of each frame to get a buffer for it.
979
     * if pic.reference is set then the frame will be read later by lavc
980
     * avcodec_align_dimensions() should be used to find the required width and
981
     * height, as they normally need to be rounded up to the next multiple of 16
982
     * - encoding: unused
983
     * - decoding: set by lavc, user can override
984
     */
985
    int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
986
    
987
    /**
988
     * called to release buffers which where allocated with get_buffer.
989
     * a released buffer can be reused in get_buffer()
990
     * pic.data[*] must be set to NULL
991
     * - encoding: unused
992
     * - decoding: set by lavc, user can override
993
     */
994
    void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
995

    
996
    /**
997
     * if 1 the stream has a 1 frame delay during decoding.
998
     * - encoding: set by lavc
999
     * - decoding: set by lavc
1000
     */
1001
    int has_b_frames;
1002
    
1003
    int block_align; ///< used by some WAV based audio codecs
1004
    
1005
    int parse_only; /* - decoding only: if true, only parsing is done
1006
                       (function avcodec_parse_frame()). The frame
1007
                       data is returned. Only MPEG codecs support this now. */
1008
    
1009
    /**
1010
     * 0-> h263 quant 1-> mpeg quant.
1011
     * - encoding: set by user.
1012
     * - decoding: unused
1013
     */
1014
    int mpeg_quant;
1015
    
1016
    /**
1017
     * pass1 encoding statistics output buffer.
1018
     * - encoding: set by lavc
1019
     * - decoding: unused
1020
     */
1021
    char *stats_out;
1022
    
1023
    /**
1024
     * pass2 encoding statistics input buffer.
1025
     * concatenated stuff from stats_out of pass1 should be placed here
1026
     * - encoding: allocated/set/freed by user
1027
     * - decoding: unused
1028
     */
1029
    char *stats_in;
1030
    
1031
    /**
1032
     * ratecontrol qmin qmax limiting method.
1033
     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
1034
     * - encoding: set by user.
1035
     * - decoding: unused
1036
     */
1037
    float rc_qsquish;
1038

    
1039
    float rc_qmod_amp;
1040
    int rc_qmod_freq;
1041
    
1042
    /**
1043
     * ratecontrol override, see RcOverride.
1044
     * - encoding: allocated/set/freed by user.
1045
     * - decoding: unused
1046
     */
1047
    RcOverride *rc_override;
1048
    int rc_override_count;
1049
    
1050
    /**
1051
     * rate control equation.
1052
     * - encoding: set by user
1053
     * - decoding: unused
1054
     */
1055
    char *rc_eq;
1056
    
1057
    /**
1058
     * maximum bitrate.
1059
     * - encoding: set by user.
1060
     * - decoding: unused
1061
     */
1062
    int rc_max_rate;
1063
    
1064
    /**
1065
     * minimum bitrate.
1066
     * - encoding: set by user.
1067
     * - decoding: unused
1068
     */
1069
    int rc_min_rate;
1070
    
1071
    /**
1072
     * decoder bitstream buffer size.
1073
     * - encoding: set by user.
1074
     * - decoding: unused
1075
     */
1076
    int rc_buffer_size;
1077
    float rc_buffer_aggressivity;
1078

    
1079
    /**
1080
     * qscale factor between p and i frames.
1081
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1082
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
1083
     * - encoding: set by user.
1084
     * - decoding: unused
1085
     */
1086
    float i_quant_factor;
1087
    
1088
    /**
1089
     * qscale offset between p and i frames.
1090
     * - encoding: set by user.
1091
     * - decoding: unused
1092
     */
1093
    float i_quant_offset;
1094
    
1095
    /**
1096
     * initial complexity for pass1 ratecontrol.
1097
     * - encoding: set by user.
1098
     * - decoding: unused
1099
     */
1100
    float rc_initial_cplx;
1101

    
1102
    /**
1103
     * dct algorithm, see FF_DCT_* below.
1104
     * - encoding: set by user
1105
     * - decoding: unused
1106
     */
1107
    int dct_algo;
1108
#define FF_DCT_AUTO    0
1109
#define FF_DCT_FASTINT 1
1110
#define FF_DCT_INT     2
1111
#define FF_DCT_MMX     3
1112
#define FF_DCT_MLIB    4
1113
#define FF_DCT_ALTIVEC 5
1114
#define FF_DCT_FAAN    6
1115
    
1116
    /**
1117
     * luminance masking (0-> disabled).
1118
     * - encoding: set by user
1119
     * - decoding: unused
1120
     */
1121
    float lumi_masking;
1122
    
1123
    /**
1124
     * temporary complexity masking (0-> disabled).
1125
     * - encoding: set by user
1126
     * - decoding: unused
1127
     */
1128
    float temporal_cplx_masking;
1129
    
1130
    /**
1131
     * spatial complexity masking (0-> disabled).
1132
     * - encoding: set by user
1133
     * - decoding: unused
1134
     */
1135
    float spatial_cplx_masking;
1136
    
1137
    /**
1138
     * p block masking (0-> disabled).
1139
     * - encoding: set by user
1140
     * - decoding: unused
1141
     */
1142
    float p_masking;
1143

    
1144
    /**
1145
     * darkness masking (0-> disabled).
1146
     * - encoding: set by user
1147
     * - decoding: unused
1148
     */
1149
    float dark_masking;
1150
    
1151
    
1152
    /* for binary compatibility */
1153
    int unused;
1154
    
1155
    /**
1156
     * idct algorithm, see FF_IDCT_* below.
1157
     * - encoding: set by user
1158
     * - decoding: set by user
1159
     */
1160
    int idct_algo;
1161
#define FF_IDCT_AUTO         0
1162
#define FF_IDCT_INT          1
1163
#define FF_IDCT_SIMPLE       2
1164
#define FF_IDCT_SIMPLEMMX    3
1165
#define FF_IDCT_LIBMPEG2MMX  4
1166
#define FF_IDCT_PS2          5
1167
#define FF_IDCT_MLIB         6
1168
#define FF_IDCT_ARM          7
1169
#define FF_IDCT_ALTIVEC      8
1170
#define FF_IDCT_SH4          9
1171
#define FF_IDCT_SIMPLEARM    10
1172
#define FF_IDCT_H264         11
1173

    
1174
    /**
1175
     * slice count.
1176
     * - encoding: set by lavc
1177
     * - decoding: set by user (or 0)
1178
     */
1179
    int slice_count;
1180
    /**
1181
     * slice offsets in the frame in bytes.
1182
     * - encoding: set/allocated by lavc
1183
     * - decoding: set/allocated by user (or NULL)
1184
     */
1185
    int *slice_offset;
1186

    
1187
    /**
1188
     * error concealment flags.
1189
     * - encoding: unused
1190
     * - decoding: set by user
1191
     */
1192
    int error_concealment;
1193
#define FF_EC_GUESS_MVS   1
1194
#define FF_EC_DEBLOCK     2
1195

    
1196
    /**
1197
     * dsp_mask could be add used to disable unwanted CPU features
1198
     * CPU features (i.e. MMX, SSE. ...)
1199
     *
1200
     * with FORCE flag you may instead enable given CPU features
1201
     * (Dangerous: usable in case of misdetection, improper usage however will
1202
     * result into program crash)
1203
     */
1204
    unsigned dsp_mask;
1205
#define FF_MM_FORCE        0x80000000 /* force usage of selected flags (OR) */
1206
    /* lower 16 bits - CPU features */
1207
#ifdef HAVE_MMX
1208
#define FF_MM_MMX        0x0001 /* standard MMX */
1209
#define FF_MM_3DNOW        0x0004 /* AMD 3DNOW */
1210
#define FF_MM_MMXEXT        0x0002 /* SSE integer functions or AMD MMX ext */
1211
#define FF_MM_SSE        0x0008 /* SSE functions */
1212
#define FF_MM_SSE2        0x0010 /* PIV SSE2 functions */
1213
#define FF_MM_3DNOWEXT        0x0020 /* AMD 3DNowExt */
1214
#endif /* HAVE_MMX */
1215

    
1216
    /**
1217
     * bits per sample/pixel from the demuxer (needed for huffyuv).
1218
     * - encoding: set by lavc
1219
     * - decoding: set by user
1220
     */
1221
     int bits_per_sample;
1222
    
1223
    /**
1224
     * prediction method (needed for huffyuv).
1225
     * - encoding: set by user
1226
     * - decoding: unused
1227
     */
1228
     int prediction_method;
1229
#define FF_PRED_LEFT   0
1230
#define FF_PRED_PLANE  1
1231
#define FF_PRED_MEDIAN 2
1232
    
1233
    /**
1234
     * sample aspect ratio (0 if unknown).
1235
     * numerator and denominator must be relative prime and smaller then 256 for some video standards
1236
     * - encoding: set by user.
1237
     * - decoding: set by lavc.
1238
     */
1239
    AVRational sample_aspect_ratio;
1240

    
1241
    /**
1242
     * the picture in the bitstream.
1243
     * - encoding: set by lavc
1244
     * - decoding: set by lavc
1245
     */
1246
    AVFrame *coded_frame;
1247

    
1248
    /**
1249
     * debug.
1250
     * - encoding: set by user.
1251
     * - decoding: set by user.
1252
     */
1253
    int debug;
1254
#define FF_DEBUG_PICT_INFO 1
1255
#define FF_DEBUG_RC        2
1256
#define FF_DEBUG_BITSTREAM 4
1257
#define FF_DEBUG_MB_TYPE   8
1258
#define FF_DEBUG_QP        16
1259
#define FF_DEBUG_MV        32
1260
#define FF_DEBUG_DCT_COEFF 0x00000040
1261
#define FF_DEBUG_SKIP      0x00000080
1262
#define FF_DEBUG_STARTCODE 0x00000100
1263
#define FF_DEBUG_PTS       0x00000200
1264
#define FF_DEBUG_ER        0x00000400
1265
#define FF_DEBUG_MMCO      0x00000800
1266
#define FF_DEBUG_BUGS      0x00001000
1267
#define FF_DEBUG_VIS_QP    0x00002000
1268
#define FF_DEBUG_VIS_MB_TYPE 0x00004000
1269
    
1270
    /**
1271
     * debug.
1272
     * - encoding: set by user.
1273
     * - decoding: set by user.
1274
     */
1275
    int debug_mv;
1276
#define FF_DEBUG_VIS_MV_P_FOR  0x00000001 //visualize forward predicted MVs of P frames
1277
#define FF_DEBUG_VIS_MV_B_FOR  0x00000002 //visualize forward predicted MVs of B frames
1278
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1279

    
1280
    /**
1281
     * error.
1282
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1283
     * - decoding: unused
1284
     */
1285
    uint64_t error[4];
1286
    
1287
    /**
1288
     * minimum MB quantizer.
1289
     * - encoding: unused
1290
     * - decoding: unused
1291
     */
1292
    int mb_qmin;
1293

    
1294
    /**
1295
     * maximum MB quantizer.
1296
     * - encoding: unused
1297
     * - decoding: unused
1298
     */
1299
    int mb_qmax;
1300
    
1301
    /**
1302
     * motion estimation compare function.
1303
     * - encoding: set by user.
1304
     * - decoding: unused
1305
     */
1306
    int me_cmp;
1307
    /**
1308
     * subpixel motion estimation compare function.
1309
     * - encoding: set by user.
1310
     * - decoding: unused
1311
     */
1312
    int me_sub_cmp;
1313
    /**
1314
     * macroblock compare function (not supported yet).
1315
     * - encoding: set by user.
1316
     * - decoding: unused
1317
     */
1318
    int mb_cmp;
1319
    /**
1320
     * interlaced dct compare function
1321
     * - encoding: set by user.
1322
     * - decoding: unused
1323
     */
1324
    int ildct_cmp;
1325
#define FF_CMP_SAD  0
1326
#define FF_CMP_SSE  1
1327
#define FF_CMP_SATD 2
1328
#define FF_CMP_DCT  3
1329
#define FF_CMP_PSNR 4
1330
#define FF_CMP_BIT  5
1331
#define FF_CMP_RD   6
1332
#define FF_CMP_ZERO 7
1333
#define FF_CMP_VSAD 8
1334
#define FF_CMP_VSSE 9
1335
#define FF_CMP_NSSE 10
1336
#define FF_CMP_W53  11
1337
#define FF_CMP_W97  12
1338
#define FF_CMP_DCTMAX 13
1339
#define FF_CMP_CHROMA 256
1340
    
1341
    /**
1342
     * ME diamond size & shape.
1343
     * - encoding: set by user.
1344
     * - decoding: unused
1345
     */
1346
    int dia_size;
1347

    
1348
    /**
1349
     * amount of previous MV predictors (2a+1 x 2a+1 square).
1350
     * - encoding: set by user.
1351
     * - decoding: unused
1352
     */
1353
    int last_predictor_count;
1354

    
1355
    /**
1356
     * pre pass for motion estimation.
1357
     * - encoding: set by user.
1358
     * - decoding: unused
1359
     */
1360
    int pre_me;
1361

    
1362
    /**
1363
     * motion estimation pre pass compare function.
1364
     * - encoding: set by user.
1365
     * - decoding: unused
1366
     */
1367
    int me_pre_cmp;
1368

    
1369
    /**
1370
     * ME pre pass diamond size & shape.
1371
     * - encoding: set by user.
1372
     * - decoding: unused
1373
     */
1374
    int pre_dia_size;
1375

    
1376
    /**
1377
     * subpel ME quality.
1378
     * - encoding: set by user.
1379
     * - decoding: unused
1380
     */
1381
    int me_subpel_quality;
1382

    
1383
    /**
1384
     * callback to negotiate the pixelFormat.
1385
     * @param fmt is the list of formats which are supported by the codec,
1386
     * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1387
     * the first is allways the native one
1388
     * @return the choosen format
1389
     * - encoding: unused
1390
     * - decoding: set by user, if not set then the native format will always be choosen
1391
     */
1392
    enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
1393

    
1394
    /**
1395
     * DTG active format information (additionnal aspect ratio
1396
     * information only used in DVB MPEG2 transport streams). 0 if
1397
     * not set.
1398
     * 
1399
     * - encoding: unused.
1400
     * - decoding: set by decoder 
1401
     */
1402
    int dtg_active_format;
1403
#define FF_DTG_AFD_SAME         8
1404
#define FF_DTG_AFD_4_3          9
1405
#define FF_DTG_AFD_16_9         10
1406
#define FF_DTG_AFD_14_9         11
1407
#define FF_DTG_AFD_4_3_SP_14_9  13
1408
#define FF_DTG_AFD_16_9_SP_14_9 14
1409
#define FF_DTG_AFD_SP_4_3       15
1410

    
1411
    /**
1412
     * Maximum motion estimation search range in subpel units.
1413
     * if 0 then no limit
1414
     * 
1415
     * - encoding: set by user.
1416
     * - decoding: unused.
1417
     */
1418
    int me_range;
1419

    
1420
    /**
1421
     * frame_rate_base.
1422
     * for variable fps this is 1
1423
     * - encoding: set by user.
1424
     * - decoding: set by lavc.
1425
     * @todo move this after frame_rate
1426
     */
1427

    
1428
    int frame_rate_base;
1429
    /**
1430
     * intra quantizer bias.
1431
     * - encoding: set by user.
1432
     * - decoding: unused
1433
     */
1434
    int intra_quant_bias;
1435
#define FF_DEFAULT_QUANT_BIAS 999999
1436
    
1437
    /**
1438
     * inter quantizer bias.
1439
     * - encoding: set by user.
1440
     * - decoding: unused
1441
     */
1442
    int inter_quant_bias;
1443

    
1444
    /**
1445
     * color table ID.
1446
     * - encoding: unused.
1447
     * - decoding: which clrtable should be used for 8bit RGB images
1448
     *             table have to be stored somewhere FIXME
1449
     */
1450
    int color_table_id;
1451
    
1452
    /**
1453
     * internal_buffer count. 
1454
     * Dont touch, used by lavc default_get_buffer()
1455
     */
1456
    int internal_buffer_count;
1457
    
1458
    /**
1459
     * internal_buffers. 
1460
     * Dont touch, used by lavc default_get_buffer()
1461
     */
1462
    void *internal_buffer;
1463

    
1464
#define FF_LAMBDA_SHIFT 7
1465
#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1466
#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1467
#define FF_LAMBDA_MAX (256*128-1)
1468

    
1469
#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
1470
    /**
1471
     * global quality for codecs which cannot change it per frame.
1472
     * this should be proportional to MPEG1/2/4 qscale.
1473
     * - encoding: set by user.
1474
     * - decoding: unused
1475
     */
1476
    int global_quality;
1477
    
1478
#define FF_CODER_TYPE_VLC   0
1479
#define FF_CODER_TYPE_AC    1
1480
    /**
1481
     * coder type
1482
     * - encoding: set by user.
1483
     * - decoding: unused
1484
     */
1485
    int coder_type;
1486

    
1487
    /**
1488
     * context model
1489
     * - encoding: set by user.
1490
     * - decoding: unused
1491
     */
1492
    int context_model;
1493
    
1494
    /**
1495
     * slice flags
1496
     * - encoding: unused
1497
     * - decoding: set by user.
1498
     */
1499
    int slice_flags;
1500
#define SLICE_FLAG_CODED_ORDER    0x0001 ///< draw_horiz_band() is called in coded order instead of display
1501
#define SLICE_FLAG_ALLOW_FIELD    0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1502
#define SLICE_FLAG_ALLOW_PLANE    0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1503

    
1504
    /**
1505
     * XVideo Motion Acceleration
1506
     * - encoding: forbidden
1507
     * - decoding: set by decoder
1508
     */
1509
    int xvmc_acceleration;
1510
    
1511
    /**
1512
     * macroblock decision mode
1513
     * - encoding: set by user.
1514
     * - decoding: unused
1515
     */
1516
    int mb_decision;
1517
#define FF_MB_DECISION_SIMPLE 0        ///< uses mb_cmp
1518
#define FF_MB_DECISION_BITS   1        ///< chooses the one which needs the fewest bits
1519
#define FF_MB_DECISION_RD     2        ///< rate distoration
1520

    
1521
    /**
1522
     * custom intra quantization matrix
1523
     * - encoding: set by user, can be NULL
1524
     * - decoding: set by lavc
1525
     */
1526
    uint16_t *intra_matrix;
1527

    
1528
    /**
1529
     * custom inter quantization matrix
1530
     * - encoding: set by user, can be NULL
1531
     * - decoding: set by lavc
1532
     */
1533
    uint16_t *inter_matrix;
1534
    
1535
    /**
1536
     * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1537
     * this is used to workaround some encoder bugs
1538
     * - encoding: unused
1539
     * - decoding: set by user, will be converted to upper case by lavc during init
1540
     */
1541
    unsigned int stream_codec_tag;
1542

    
1543
    /**
1544
     * scene change detection threshold.
1545
     * 0 is default, larger means fewer detected scene changes
1546
     * - encoding: set by user.
1547
     * - decoding: unused
1548
     */
1549
    int scenechange_threshold;
1550

    
1551
    /**
1552
     * minimum lagrange multipler
1553
     * - encoding: set by user.
1554
     * - decoding: unused
1555
     */
1556
    int lmin;
1557

    
1558
    /**
1559
     * maximum lagrange multipler
1560
     * - encoding: set by user.
1561
     * - decoding: unused
1562
     */
1563
    int lmax;
1564

    
1565
    /**
1566
     * Palette control structure
1567
     * - encoding: ??? (no palette-enabled encoder yet)
1568
     * - decoding: set by user.
1569
     */
1570
    struct AVPaletteControl *palctrl;
1571

    
1572
    /**
1573
     * noise reduction strength
1574
     * - encoding: set by user.
1575
     * - decoding: unused
1576
     */
1577
    int noise_reduction;
1578
    
1579
    /**
1580
     * called at the beginning of a frame to get cr buffer for it.
1581
     * buffer type (size, hints) must be the same. lavc won't check it.
1582
     * lavc will pass previous buffer in pic, function should return
1583
     * same buffer or new buffer with old frame "painted" into it.
1584
     * if pic.data[0] == NULL must behave like get_buffer().
1585
     * - encoding: unused
1586
     * - decoding: set by lavc, user can override
1587
     */
1588
    int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
1589

    
1590
    /**
1591
     * number of bits which should be loaded into the rc buffer before decoding starts
1592
     * - encoding: set by user.
1593
     * - decoding: unused
1594
     */
1595
    int rc_initial_buffer_occupancy;
1596

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

    
1604
    /**
1605
     * CODEC_FLAG2_*.
1606
     * - encoding: set by user.
1607
     * - decoding: set by user.
1608
     */
1609
    int flags2;
1610

    
1611
    /**
1612
     * simulates errors in the bitstream to test error concealment.
1613
     * - encoding: set by user.
1614
     * - decoding: unused.
1615
     */
1616
    int error_rate;
1617
    
1618
    /**
1619
     * MP3 antialias algorithm, see FF_AA_* below.
1620
     * - encoding: unused
1621
     * - decoding: set by user
1622
     */
1623
    int antialias_algo;
1624
#define FF_AA_AUTO    0
1625
#define FF_AA_FASTINT 1 //not implemented yet
1626
#define FF_AA_INT     2
1627
#define FF_AA_FLOAT   3
1628
    /**
1629
     * Quantizer noise shaping.
1630
     * - encoding: set by user
1631
     * - decoding: unused
1632
     */
1633
    int quantizer_noise_shaping;
1634

    
1635
    /**
1636
     * Thread count.
1637
     * is used to decide how many independant tasks should be passed to execute()
1638
     * - encoding: set by user
1639
     * - decoding: set by user
1640
     */
1641
    int thread_count;
1642
    
1643
    /**
1644
     * the codec may call this to execute several independant things. it will return only after
1645
     * finishing all tasks, the user may replace this with some multithreaded implementation, the
1646
     * default implementation will execute the parts serially
1647
     * @param count the number of things to execute
1648
     * - encoding: set by lavc, user can override
1649
     * - decoding: set by lavc, user can override
1650
     */
1651
    int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
1652
    
1653
    /**
1654
     * Thread opaque.
1655
     * can be used by execute() to store some per AVCodecContext stuff.
1656
     * - encoding: set by execute()
1657
     * - decoding: set by execute()
1658
     */
1659
    void *thread_opaque;
1660

    
1661
    /**
1662
     * Motion estimation threshold. under which no motion estimation is 
1663
     * performed, but instead the user specified motion vectors are used
1664
     * 
1665
     * - encoding: set by user
1666
     * - decoding: unused
1667
     */
1668
     int me_threshold;
1669

    
1670
    /**
1671
     * Macroblock threshold. under which the user specified macroblock types will be used
1672
     * - encoding: set by user
1673
     * - decoding: unused
1674
     */
1675
     int mb_threshold;
1676

    
1677
    /**
1678
     * precision of the intra dc coefficient - 8.
1679
     * - encoding: set by user
1680
     * - decoding: unused
1681
     */
1682
     int intra_dc_precision;
1683

    
1684
    /**
1685
     * noise vs. sse weight for the nsse comparsion function.
1686
     * - encoding: set by user
1687
     * - decoding: unused
1688
     */
1689
     int nsse_weight;
1690

    
1691
    /**
1692
     * number of macroblock rows at the top which are skiped.
1693
     * - encoding: unused
1694
     * - decoding: set by user
1695
     */
1696
     int skip_top;
1697

    
1698
    /**
1699
     * number of macroblock rows at the bottom which are skiped.
1700
     * - encoding: unused
1701
     * - decoding: set by user
1702
     */
1703
     int skip_bottom;
1704

    
1705
    /**
1706
     * profile
1707
     * - encoding: set by user
1708
     * - decoding: set by lavc
1709
     */
1710
     int profile;
1711
#define FF_PROFILE_UNKNOWN -99
1712

    
1713
    /**
1714
     * level
1715
     * - encoding: set by user
1716
     * - decoding: set by lavc
1717
     */
1718
     int level;
1719
#define FF_LEVEL_UNKNOWN -99
1720

    
1721
    /**
1722
     * low resolution decoding. 1-> 1/2 size, 2->1/4 size
1723
     * - encoding: unused
1724
     * - decoding: set by user
1725
     */
1726
     int lowres;
1727

    
1728
    /**
1729
     * bitsream width / height. may be different from width/height if lowres
1730
     * or other things are used
1731
     * - encoding: unused
1732
     * - decoding: set by user before init if known, codec should override / dynamically change if needed
1733
     */
1734
    int coded_width, coded_height;
1735

    
1736
    /**
1737
     * frame skip threshold
1738
     * - encoding: set by user
1739
     * - decoding: unused
1740
     */
1741
    int frame_skip_threshold;
1742

    
1743
    /**
1744
     * frame skip factor
1745
     * - encoding: set by user
1746
     * - decoding: unused
1747
     */
1748
    int frame_skip_factor;
1749

    
1750
    /**
1751
     * frame skip exponent
1752
     * - encoding: set by user
1753
     * - decoding: unused
1754
     */
1755
    int frame_skip_exp;
1756

    
1757
    /**
1758
     * frame skip comparission function
1759
     * - encoding: set by user.
1760
     * - decoding: unused
1761
     */
1762
    int frame_skip_cmp;
1763

    
1764
    /**
1765
     * border processing masking. raises the quantizer for mbs on the borders
1766
     * of the picture.
1767
     * - encoding: set by user
1768
     * - decoding: unused
1769
     */
1770
    float border_masking;
1771

    
1772
    /**
1773
     * minimum MB lagrange multipler.
1774
     * - encoding: set by user.
1775
     * - decoding: unused
1776
     */
1777
    int mb_lmin;
1778

    
1779
    /**
1780
     * maximum MB lagrange multipler.
1781
     * - encoding: set by user.
1782
     * - decoding: unused
1783
     */
1784
    int mb_lmax;
1785

    
1786
    /**
1787
     * 
1788
     * - encoding: set by user.
1789
     * - decoding: unused
1790
     */
1791
    int me_penalty_compensation;
1792
} AVCodecContext;
1793

    
1794

    
1795
/**
1796
 * AVOption.
1797
 */
1798
typedef struct AVOption {
1799
    /** options' name */
1800
    const char *name; /* if name is NULL, it indicates a link to next */
1801
    /** short English text help or const struct AVOption* subpointer */
1802
    const char *help; //        const struct AVOption* sub;
1803
    /** offset to context structure where the parsed value should be stored */
1804
    int offset;
1805
    /** options' type */
1806
    int type;
1807
#define FF_OPT_TYPE_BOOL 1      ///< boolean - true,1,on  (or simply presence)
1808
#define FF_OPT_TYPE_DOUBLE 2    ///< double
1809
#define FF_OPT_TYPE_INT 3       ///< integer
1810
#define FF_OPT_TYPE_STRING 4    ///< string (finished with \0)
1811
#define FF_OPT_TYPE_MASK 0x1f        ///< mask for types - upper bits are various flags
1812
//#define FF_OPT_TYPE_EXPERT 0x20 // flag for expert option
1813
#define FF_OPT_TYPE_FLAG (FF_OPT_TYPE_BOOL | 0x40)
1814
#define FF_OPT_TYPE_RCOVERRIDE (FF_OPT_TYPE_STRING | 0x80)
1815
    /** min value  (min == max   ->  no limits) */
1816
    double min;
1817
    /** maximum value for double/int */
1818
    double max;
1819
    /** default boo [0,1]l/double/int value */
1820
    double defval;
1821
    /**
1822
     * default string value (with optional semicolon delimited extra option-list
1823
     * i.e.   option1;option2;option3
1824
     * defval might select other then first argument as default
1825
     */
1826
    const char *defstr;
1827
#define FF_OPT_MAX_DEPTH 10
1828
} AVOption;
1829

    
1830
/**
1831
 * AVCodec.
1832
 */
1833
typedef struct AVCodec {
1834
    const char *name;
1835
    enum CodecType type;
1836
    enum CodecID id;
1837
    int priv_data_size;
1838
    int (*init)(AVCodecContext *);
1839
    int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
1840
    int (*close)(AVCodecContext *);
1841
    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
1842
                  uint8_t *buf, int buf_size);
1843
    int capabilities;
1844
    void *dummy; // FIXME remove next time we break binary compatibility
1845
    struct AVCodec *next;
1846
    void (*flush)(AVCodecContext *);
1847
    const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
1848
    const enum PixelFormat *pix_fmts;       ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
1849
} AVCodec;
1850

    
1851
/**
1852
 * four components are given, that's all.
1853
 * the last component is alpha
1854
 */
1855
typedef struct AVPicture {
1856
    uint8_t *data[4];
1857
    int linesize[4];       ///< number of bytes per line
1858
} AVPicture;
1859

    
1860
/**
1861
 * AVPaletteControl
1862
 * This structure defines a method for communicating palette changes
1863
 * between and demuxer and a decoder.
1864
 */
1865
#define AVPALETTE_SIZE 1024
1866
#define AVPALETTE_COUNT 256
1867
typedef struct AVPaletteControl {
1868

    
1869
    /* demuxer sets this to 1 to indicate the palette has changed;
1870
     * decoder resets to 0 */
1871
    int palette_changed;
1872

    
1873
    /* 4-byte ARGB palette entries, stored in native byte order; note that
1874
     * the individual palette components should be on a 8-bit scale; if
1875
     * the palette data comes from a IBM VGA native format, the component
1876
     * data is probably 6 bits in size and needs to be scaled */
1877
    unsigned int palette[AVPALETTE_COUNT];
1878

    
1879
} AVPaletteControl;
1880

    
1881
extern AVCodec ac3_encoder;
1882
extern AVCodec mp2_encoder;
1883
extern AVCodec mp3lame_encoder;
1884
extern AVCodec oggvorbis_encoder;
1885
extern AVCodec oggtheora_encoder;
1886
extern AVCodec faac_encoder;
1887
extern AVCodec xvid_encoder;
1888
extern AVCodec mpeg1video_encoder;
1889
extern AVCodec mpeg2video_encoder;
1890
extern AVCodec h261_encoder;
1891
extern AVCodec h263_encoder;
1892
extern AVCodec h263p_encoder;
1893
extern AVCodec flv_encoder;
1894
extern AVCodec rv10_encoder;
1895
extern AVCodec rv20_encoder;
1896
extern AVCodec dvvideo_encoder;
1897
extern AVCodec mjpeg_encoder;
1898
extern AVCodec ljpeg_encoder;
1899
extern AVCodec png_encoder;
1900
extern AVCodec ppm_encoder;
1901
extern AVCodec pgm_encoder;
1902
extern AVCodec pgmyuv_encoder;
1903
extern AVCodec pbm_encoder;
1904
extern AVCodec pam_encoder;
1905
extern AVCodec mpeg4_encoder;
1906
extern AVCodec msmpeg4v1_encoder;
1907
extern AVCodec msmpeg4v2_encoder;
1908
extern AVCodec msmpeg4v3_encoder;
1909
extern AVCodec wmv1_encoder;
1910
extern AVCodec wmv2_encoder;
1911
extern AVCodec huffyuv_encoder;
1912
extern AVCodec ffvhuff_encoder;
1913
extern AVCodec h264_encoder;
1914
extern AVCodec asv1_encoder;
1915
extern AVCodec asv2_encoder;
1916
extern AVCodec vcr1_encoder;
1917
extern AVCodec ffv1_encoder;
1918
extern AVCodec snow_encoder;
1919
extern AVCodec mdec_encoder;
1920
extern AVCodec zlib_encoder;
1921
extern AVCodec sonic_encoder;
1922
extern AVCodec sonic_ls_encoder;
1923
extern AVCodec svq1_encoder;
1924
extern AVCodec x264_encoder;
1925

    
1926
extern AVCodec h263_decoder;
1927
extern AVCodec h261_decoder;
1928
extern AVCodec mpeg4_decoder;
1929
extern AVCodec msmpeg4v1_decoder;
1930
extern AVCodec msmpeg4v2_decoder;
1931
extern AVCodec msmpeg4v3_decoder;
1932
extern AVCodec wmv1_decoder;
1933
extern AVCodec wmv2_decoder;
1934
extern AVCodec vc9_decoder;
1935
extern AVCodec wmv3_decoder;
1936
extern AVCodec mpeg1video_decoder;
1937
extern AVCodec mpeg2video_decoder;
1938
extern AVCodec mpegvideo_decoder;
1939
extern AVCodec mpeg_xvmc_decoder;
1940
extern AVCodec h263i_decoder;
1941
extern AVCodec flv_decoder;
1942
extern AVCodec rv10_decoder;
1943
extern AVCodec rv20_decoder;
1944
extern AVCodec rv30_decoder;
1945
extern AVCodec rv40_decoder;
1946
extern AVCodec svq1_decoder;
1947
extern AVCodec svq3_decoder;
1948
extern AVCodec dvvideo_decoder;
1949
extern AVCodec wmav1_decoder;
1950
extern AVCodec wmav2_decoder;
1951
extern AVCodec mjpeg_decoder;
1952
extern AVCodec mjpegb_decoder;
1953
extern AVCodec sp5x_decoder;
1954
extern AVCodec png_decoder;
1955
extern AVCodec mp2_decoder;
1956
extern AVCodec mp3_decoder;
1957
extern AVCodec mp3adu_decoder;
1958
extern AVCodec mp3on4_decoder;
1959
extern AVCodec mace3_decoder;
1960
extern AVCodec mace6_decoder;
1961
extern AVCodec huffyuv_decoder;
1962
extern AVCodec ffvhuff_decoder;
1963
extern AVCodec oggvorbis_decoder;
1964
extern AVCodec oggtheora_decoder;
1965
extern AVCodec cyuv_decoder;
1966
extern AVCodec h264_decoder;
1967
extern AVCodec indeo3_decoder;
1968
extern AVCodec vp3_decoder;
1969
extern AVCodec theora_decoder;
1970
extern AVCodec amr_nb_decoder;
1971
extern AVCodec amr_nb_encoder;
1972
extern AVCodec amr_wb_encoder;
1973
extern AVCodec amr_wb_decoder;
1974
extern AVCodec aac_decoder;
1975
extern AVCodec mpeg4aac_decoder;
1976
extern AVCodec asv1_decoder;
1977
extern AVCodec asv2_decoder;
1978
extern AVCodec vcr1_decoder;
1979
extern AVCodec cljr_decoder;
1980
extern AVCodec ffv1_decoder;
1981
extern AVCodec snow_decoder;
1982
extern AVCodec fourxm_decoder;
1983
extern AVCodec mdec_decoder;
1984
extern AVCodec roq_decoder;
1985
extern AVCodec interplay_video_decoder;
1986
extern AVCodec xan_wc3_decoder;
1987
extern AVCodec rpza_decoder;
1988
extern AVCodec cinepak_decoder;
1989
extern AVCodec msrle_decoder;
1990
extern AVCodec msvideo1_decoder;
1991
extern AVCodec vqa_decoder;
1992
extern AVCodec idcin_decoder;
1993
extern AVCodec eightbps_decoder;
1994
extern AVCodec smc_decoder;
1995
extern AVCodec flic_decoder;
1996
extern AVCodec vmdvideo_decoder;
1997
extern AVCodec vmdaudio_decoder;
1998
extern AVCodec truemotion1_decoder;
1999
extern AVCodec mszh_decoder;
2000
extern AVCodec zlib_decoder;
2001
extern AVCodec ra_144_decoder;
2002
extern AVCodec ra_288_decoder;
2003
extern AVCodec roq_dpcm_decoder;
2004
extern AVCodec interplay_dpcm_decoder;
2005
extern AVCodec xan_dpcm_decoder;
2006
extern AVCodec sol_dpcm_decoder;
2007
extern AVCodec sonic_decoder;
2008
extern AVCodec qtrle_decoder;
2009
extern AVCodec flac_decoder;
2010
extern AVCodec tscc_decoder;
2011
extern AVCodec ulti_decoder;
2012
extern AVCodec qdraw_decoder;
2013
extern AVCodec xl_decoder;
2014
extern AVCodec qpeg_decoder;
2015
extern AVCodec shorten_decoder;
2016
extern AVCodec loco_decoder;
2017
extern AVCodec wnv1_decoder;
2018
extern AVCodec alac_decoder;
2019
extern AVCodec ws_snd1_decoder;
2020

    
2021
/* pcm codecs */
2022
#define PCM_CODEC(id, name) \
2023
extern AVCodec name ## _decoder; \
2024
extern AVCodec name ## _encoder
2025

    
2026
PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
2027
PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
2028
PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
2029
PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
2030
PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
2031
PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
2032
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
2033
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
2034

    
2035
/* adpcm codecs */
2036

    
2037
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
2038
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
2039
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
2040
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
2041
PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
2042
PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
2043
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
2044
PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
2045
PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
2046
PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
2047
PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
2048
PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
2049
PCM_CODEC(CODEC_ID_ADPCM_CT, adpcm_ct);
2050
PCM_CODEC(CODEC_ID_ADPCM_SWF, adpcm_swf);
2051

    
2052
#undef PCM_CODEC
2053

    
2054
/* dummy raw video codec */
2055
extern AVCodec rawvideo_encoder;
2056
extern AVCodec rawvideo_decoder;
2057

    
2058
/* the following codecs use external GPL libs */
2059
extern AVCodec ac3_decoder;
2060
extern AVCodec dts_decoder;
2061

    
2062
/* resample.c */
2063

    
2064
struct ReSampleContext;
2065
struct AVResampleContext;
2066

    
2067
typedef struct ReSampleContext ReSampleContext;
2068

    
2069
ReSampleContext *audio_resample_init(int output_channels, int input_channels, 
2070
                                     int output_rate, int input_rate);
2071
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
2072
void audio_resample_close(ReSampleContext *s);
2073

    
2074
struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
2075
int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
2076
void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
2077
void av_resample_close(struct AVResampleContext *c);
2078

    
2079
/* YUV420 format is assumed ! */
2080

    
2081
struct ImgReSampleContext;
2082

    
2083
typedef struct ImgReSampleContext ImgReSampleContext;
2084

    
2085
ImgReSampleContext *img_resample_init(int output_width, int output_height,
2086
                                      int input_width, int input_height);
2087

    
2088
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
2089
                                      int iwidth, int iheight,
2090
                                      int topBand, int bottomBand,
2091
                                      int leftBand, int rightBand,
2092
                                      int padtop, int padbottom,
2093
                                      int padleft, int padright);
2094

    
2095

    
2096
void img_resample(ImgReSampleContext *s, 
2097
                  AVPicture *output, const AVPicture *input);
2098

    
2099
void img_resample_close(ImgReSampleContext *s);
2100

    
2101
/**
2102
 * Allocate memory for a picture.  Call avpicture_free to free it.
2103
 *
2104
 * @param picture the picture to be filled in.
2105
 * @param pix_fmt the format of the picture.
2106
 * @param width the width of the picture.
2107
 * @param height the height of the picture.
2108
 * @return 0 if successful, -1 if not.
2109
 */
2110
int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
2111

    
2112
/* Free a picture previously allocated by avpicture_alloc. */
2113
void avpicture_free(AVPicture *picture);
2114

    
2115
int avpicture_fill(AVPicture *picture, uint8_t *ptr,
2116
                   int pix_fmt, int width, int height);
2117
int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
2118
                     unsigned char *dest, int dest_size);
2119
int avpicture_get_size(int pix_fmt, int width, int height);
2120
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
2121
const char *avcodec_get_pix_fmt_name(int pix_fmt);
2122
void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
2123
enum PixelFormat avcodec_get_pix_fmt(const char* name);
2124
unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat p);
2125

    
2126
#define FF_LOSS_RESOLUTION  0x0001 /* loss due to resolution change */
2127
#define FF_LOSS_DEPTH       0x0002 /* loss due to color depth change */
2128
#define FF_LOSS_COLORSPACE  0x0004 /* loss due to color space conversion */
2129
#define FF_LOSS_ALPHA       0x0008 /* loss of alpha bits */
2130
#define FF_LOSS_COLORQUANT  0x0010 /* loss due to color quantization */
2131
#define FF_LOSS_CHROMA      0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
2132

    
2133
int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
2134
                             int has_alpha);
2135
int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
2136
                              int has_alpha, int *loss_ptr);
2137

    
2138
#define FF_ALPHA_TRANSP       0x0001 /* image has some totally transparent pixels */
2139
#define FF_ALPHA_SEMI_TRANSP  0x0002 /* image has some transparent pixels */
2140
int img_get_alpha_info(const AVPicture *src,
2141
                       int pix_fmt, int width, int height);
2142

    
2143
/* convert among pixel formats */
2144
int img_convert(AVPicture *dst, int dst_pix_fmt,
2145
                const AVPicture *src, int pix_fmt, 
2146
                int width, int height);
2147

    
2148
/* deinterlace a picture */
2149
int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
2150
                          int pix_fmt, int width, int height);
2151

    
2152
/* external high level API */
2153

    
2154
extern AVCodec *first_avcodec;
2155

    
2156
/* returns LIBAVCODEC_VERSION_INT constant */
2157
unsigned avcodec_version(void);
2158
/* returns LIBAVCODEC_BUILD constant */
2159
unsigned avcodec_build(void);
2160
void avcodec_init(void);
2161

    
2162
void register_avcodec(AVCodec *format);
2163
AVCodec *avcodec_find_encoder(enum CodecID id);
2164
AVCodec *avcodec_find_encoder_by_name(const char *name);
2165
AVCodec *avcodec_find_decoder(enum CodecID id);
2166
AVCodec *avcodec_find_decoder_by_name(const char *name);
2167
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
2168

    
2169
void avcodec_get_context_defaults(AVCodecContext *s);
2170
AVCodecContext *avcodec_alloc_context(void);
2171
void avcodec_get_frame_defaults(AVFrame *pic);
2172
AVFrame *avcodec_alloc_frame(void);
2173

    
2174
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
2175
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
2176
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
2177
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
2178
int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h);
2179
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
2180

    
2181
int avcodec_thread_init(AVCodecContext *s, int thread_count);
2182
void avcodec_thread_free(AVCodecContext *s);
2183
int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2184
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2185
//FIXME func typedef
2186

    
2187
/**
2188
 * opens / inits the AVCodecContext.
2189
 * not thread save!
2190
 */
2191
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
2192

    
2193
int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples, 
2194
                         int *frame_size_ptr,
2195
                         uint8_t *buf, int buf_size);
2196
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture, 
2197
                         int *got_picture_ptr,
2198
                         uint8_t *buf, int buf_size);
2199
int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata, 
2200
                        int *data_size_ptr,
2201
                        uint8_t *buf, int buf_size);
2202
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
2203
                         const short *samples);
2204
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
2205
                         const AVFrame *pict);
2206

    
2207
int avcodec_close(AVCodecContext *avctx);
2208

    
2209
void avcodec_register_all(void);
2210

    
2211
void avcodec_flush_buffers(AVCodecContext *avctx);
2212

    
2213
void avcodec_default_free_buffers(AVCodecContext *s);
2214

    
2215
/* misc usefull functions */
2216

    
2217
/**
2218
 * returns a single letter to describe the picture type
2219
 */
2220
char av_get_pict_type_char(int pict_type);
2221

    
2222
/**
2223
 * reduce a fraction.
2224
 * this is usefull for framerate calculations
2225
 * @param max the maximum allowed for dst_nom & dst_den
2226
 * @return 1 if exact, 0 otherwise
2227
 */
2228
int av_reduce(int *dst_nom, int *dst_den, int64_t nom, int64_t den, int64_t max);
2229

    
2230
/**
2231
 * rescale a 64bit integer with rounding to nearest.
2232
 * a simple a*b/c isnt possible as it can overflow
2233
 */
2234
int64_t av_rescale(int64_t a, int64_t b, int64_t c);
2235

    
2236
/**
2237
 * rescale a 64bit integer with specified rounding.
2238
 * a simple a*b/c isnt possible as it can overflow
2239
 */
2240
int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding);
2241

    
2242
/* frame parsing */
2243
typedef struct AVCodecParserContext {
2244
    void *priv_data;
2245
    struct AVCodecParser *parser;
2246
    int64_t frame_offset; /* offset of the current frame */
2247
    int64_t cur_offset; /* current offset 
2248
                           (incremented by each av_parser_parse()) */
2249
    int64_t last_frame_offset; /* offset of the last frame */
2250
    /* video info */
2251
    int pict_type; /* XXX: put it back in AVCodecContext */
2252
    int repeat_pict; /* XXX: put it back in AVCodecContext */
2253
    int64_t pts;     /* pts of the current frame */
2254
    int64_t dts;     /* dts of the current frame */
2255

    
2256
    /* private data */
2257
    int64_t last_pts;
2258
    int64_t last_dts;
2259
    int fetch_timestamp;
2260

    
2261
#define AV_PARSER_PTS_NB 4
2262
    int cur_frame_start_index;
2263
    int64_t cur_frame_offset[AV_PARSER_PTS_NB];
2264
    int64_t cur_frame_pts[AV_PARSER_PTS_NB];
2265
    int64_t cur_frame_dts[AV_PARSER_PTS_NB];
2266
} AVCodecParserContext;
2267

    
2268
typedef struct AVCodecParser {
2269
    int codec_ids[5]; /* several codec IDs are permitted */
2270
    int priv_data_size;
2271
    int (*parser_init)(AVCodecParserContext *s);
2272
    int (*parser_parse)(AVCodecParserContext *s, 
2273
                        AVCodecContext *avctx,
2274
                        uint8_t **poutbuf, int *poutbuf_size, 
2275
                        const uint8_t *buf, int buf_size);
2276
    void (*parser_close)(AVCodecParserContext *s);
2277
    struct AVCodecParser *next;
2278
} AVCodecParser;
2279

    
2280
extern AVCodecParser *av_first_parser;
2281

    
2282
void av_register_codec_parser(AVCodecParser *parser);
2283
AVCodecParserContext *av_parser_init(int codec_id);
2284
int av_parser_parse(AVCodecParserContext *s, 
2285
                    AVCodecContext *avctx,
2286
                    uint8_t **poutbuf, int *poutbuf_size, 
2287
                    const uint8_t *buf, int buf_size,
2288
                    int64_t pts, int64_t dts);
2289
void av_parser_close(AVCodecParserContext *s);
2290

    
2291
extern AVCodecParser mpegvideo_parser;
2292
extern AVCodecParser mpeg4video_parser;
2293
extern AVCodecParser h261_parser;
2294
extern AVCodecParser h263_parser;
2295
extern AVCodecParser h264_parser;
2296
extern AVCodecParser mjpeg_parser;
2297
extern AVCodecParser pnm_parser;
2298
extern AVCodecParser mpegaudio_parser;
2299
extern AVCodecParser ac3_parser;
2300

    
2301
/* memory */
2302
void *av_malloc(unsigned int size);
2303
void *av_mallocz(unsigned int size);
2304
void *av_realloc(void *ptr, unsigned int size);
2305
void av_free(void *ptr);
2306
char *av_strdup(const char *s);
2307
void av_freep(void *ptr);
2308
void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
2309
/* for static data only */
2310
/* call av_free_static to release all staticaly allocated tables */
2311
void av_free_static(void);
2312
void *av_mallocz_static(unsigned int size);
2313
void *av_realloc_static(void *ptr, unsigned int size);
2314

    
2315
/* add by bero : in adx.c */
2316
int is_adx(const unsigned char *buf,size_t bufsize);
2317

    
2318
void img_copy(AVPicture *dst, const AVPicture *src,
2319
              int pix_fmt, int width, int height);
2320

    
2321
/* av_log API */
2322

    
2323
#include <stdarg.h>
2324

    
2325
#define AV_LOG_QUIET -1
2326
#define AV_LOG_ERROR 0
2327
#define AV_LOG_INFO 1
2328
#define AV_LOG_DEBUG 2
2329

    
2330
#ifdef __GNUC__
2331
extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
2332
#else
2333
extern void av_log(void*, int level, const char *fmt, ...);
2334
#endif
2335

    
2336
extern void av_vlog(void*, int level, const char *fmt, va_list);
2337
extern int av_log_get_level(void);
2338
extern void av_log_set_level(int);
2339
extern void av_log_set_callback(void (*)(void*, int, const char*, va_list));
2340

    
2341
/* endian macros */
2342
#if !defined(BE_16) || !defined(BE_32) || !defined(LE_16) || !defined(LE_32)
2343
#define BE_16(x)  ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
2344
#define BE_32(x)  ((((uint8_t*)(x))[0] << 24) | \
2345
                   (((uint8_t*)(x))[1] << 16) | \
2346
                   (((uint8_t*)(x))[2] << 8) | \
2347
                    ((uint8_t*)(x))[3])
2348
#define LE_16(x)  ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
2349
#define LE_32(x)  ((((uint8_t*)(x))[3] << 24) | \
2350
                   (((uint8_t*)(x))[2] << 16) | \
2351
                   (((uint8_t*)(x))[1] << 8) | \
2352
                    ((uint8_t*)(x))[0])
2353
#endif
2354

    
2355
#ifdef __cplusplus
2356
}
2357
#endif
2358

    
2359
#endif /* AVCODEC_H */