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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       4742
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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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    /* 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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    /* 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_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
337
 */
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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
348
 */
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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.
377
 * this specifies the area which should be displayed. Note there may be multiple such areas for one frame
378
 */
379
typedef struct AVPanScan{
380
    /**
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     * id.
382
     * - encoding: set by user.
383
     * - decoding: set by lavc
384
     */
385
    int id;
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387
    /**
388
     * width and height in 1/16 pel
389
     * - encoding: set by user.
390
     * - decoding: set by lavc
391
     */
392
    int width;
393
    int height;
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395
    /**
396
     * position of the top left corner in 1/16 pel for up to 3 fields/frames.
397
     * - encoding: set by user.
398
     * - decoding: set by lavc
399
     */
400
    int16_t position[3][2];
401
}AVPanScan;
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403
#define FF_COMMON_FRAME \
404
    /**\
405
     * pointer to the picture planes.\
406
     * this might be different from the first allocated byte\
407
     * - encoding: \
408
     * - decoding: \
409
     */\
410
    uint8_t *data[4];\
411
    int linesize[4];\
412
    /**\
413
     * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
414
     * this isnt used by lavc unless the default get/release_buffer() is used\
415
     * - encoding: \
416
     * - decoding: \
417
     */\
418
    uint8_t *base[4];\
419
    /**\
420
     * 1 -> keyframe, 0-> not\
421
     * - encoding: set by lavc\
422
     * - decoding: set by lavc\
423
     */\
424
    int key_frame;\
425
\
426
    /**\
427
     * picture type of the frame, see ?_TYPE below.\
428
     * - encoding: set by lavc for coded_picture (and set by user for input)\
429
     * - decoding: set by lavc\
430
     */\
431
    int pict_type;\
432
\
433
    /**\
434
     * presentation timestamp in AV_TIME_BASE (=micro seconds currently) (time when frame should be shown to user)\
435
     * if AV_NOPTS_VALUE then the frame_rate will be used as reference\
436
     * - encoding: MUST be set by user\
437
     * - decoding: set by lavc\
438
     */\
439
    int64_t pts;\
440
\
441
    /**\
442
     * picture number in bitstream order.\
443
     * - encoding: set by\
444
     * - decoding: set by lavc\
445
     */\
446
    int coded_picture_number;\
447
    /**\
448
     * picture number in display order.\
449
     * - encoding: set by\
450
     * - decoding: set by lavc\
451
     */\
452
    int display_picture_number;\
453
\
454
    /**\
455
     * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
456
     * - encoding: set by lavc for coded_picture (and set by user for input)\
457
     * - decoding: set by lavc\
458
     */\
459
    int quality; \
460
\
461
    /**\
462
     * buffer age (1->was last buffer and dint change, 2->..., ...).\
463
     * set to INT_MAX if the buffer has not been used yet \
464
     * - encoding: unused\
465
     * - decoding: MUST be set by get_buffer()\
466
     */\
467
    int age;\
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\
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    /**\
470
     * is this picture used as reference\
471
     * - encoding: unused\
472
     * - decoding: set by lavc (before get_buffer() call))\
473
     */\
474
    int reference;\
475
\
476
    /**\
477
     * QP table\
478
     * - encoding: unused\
479
     * - decoding: set by lavc\
480
     */\
481
    int8_t *qscale_table;\
482
    /**\
483
     * QP store stride\
484
     * - encoding: unused\
485
     * - decoding: set by lavc\
486
     */\
487
    int qstride;\
488
\
489
    /**\
490
     * mbskip_table[mb]>=1 if MB didnt change\
491
     * stride= mb_width = (width+15)>>4\
492
     * - encoding: unused\
493
     * - decoding: set by lavc\
494
     */\
495
    uint8_t *mbskip_table;\
496
\
497
    /**\
498
     * Motion vector table.\
499
     * @code\
500
     * example:\
501
     * int mv_sample_log2= 4 - motion_subsample_log2;\
502
     * int mb_width= (width+15)>>4;\
503
     * int mv_stride= (mb_width << mv_sample_log2) + 1;\
504
     * motion_val[direction][x + y*mv_stride][0->mv_x, 1->mv_y];\
505
     * @endcode\
506
     * - encoding: set by user\
507
     * - decoding: set by lavc\
508
     */\
509
    int16_t (*motion_val[2])[2];\
510
\
511
    /**\
512
     * Macroblock type table\
513
     * mb_type_base + mb_width + 2\
514
     * - encoding: set by user\
515
     * - decoding: set by lavc\
516
     */\
517
    uint32_t *mb_type;\
518
\
519
    /**\
520
     * log2 of the size of the block which a single vector in motion_val represents: \
521
     * (4->16x16, 3->8x8, 2-> 4x4, 1-> 2x2)\
522
     * - encoding: unused\
523
     * - decoding: set by lavc\
524
     */\
525
    uint8_t motion_subsample_log2;\
526
\
527
    /**\
528
     * for some private data of the user\
529
     * - encoding: unused\
530
     * - decoding: set by user\
531
     */\
532
    void *opaque;\
533
\
534
    /**\
535
     * error\
536
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
537
     * - decoding: unused\
538
     */\
539
    uint64_t error[4];\
540
\
541
    /**\
542
     * type of the buffer (to keep track of who has to dealloc data[*])\
543
     * - encoding: set by the one who allocs it\
544
     * - decoding: set by the one who allocs it\
545
     * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
546
     */\
547
    int type;\
548
    \
549
    /**\
550
     * when decoding, this signal how much the picture must be delayed.\
551
     * extra_delay = repeat_pict / (2*fps)\
552
     * - encoding: unused\
553
     * - decoding: set by lavc\
554
     */\
555
    int repeat_pict;\
556
    \
557
    /**\
558
     * \
559
     */\
560
    int qscale_type;\
561
    \
562
    /**\
563
     * The content of the picture is interlaced.\
564
     * - encoding: set by user\
565
     * - decoding: set by lavc (default 0)\
566
     */\
567
    int interlaced_frame;\
568
    \
569
    /**\
570
     * if the content is interlaced, is top field displayed first.\
571
     * - encoding: set by user\
572
     * - decoding: set by lavc\
573
     */\
574
    int top_field_first;\
575
    \
576
    /**\
577
     * Pan scan.\
578
     * - encoding: set by user\
579
     * - decoding: set by lavc\
580
     */\
581
    AVPanScan *pan_scan;\
582
    \
583
    /**\
584
     * tell user application that palette has changed from previous frame.\
585
     * - encoding: ??? (no palette-enabled encoder yet)\
586
     * - decoding: set by lavc (default 0)\
587
     */\
588
    int palette_has_changed;\
589
    \
590
    /**\
591
     * Codec suggestion on buffer type if != 0\
592
     * - encoding: unused\
593
     * - decoding: set by lavc (before get_buffer() call))\
594
     */\
595
    int buffer_hints;\
596
\
597
    /**\
598
     * DCT coeffitients\
599
     * - encoding: unused\
600
     * - decoding: set by lavc\
601
     */\
602
    short *dct_coeff;\
603
\
604
    /**\
605
     * Motion referece frame index\
606
     * - encoding: set by user\
607
     * - decoding: set by lavc\
608
     */\
609
    int8_t *ref_index[2];
610

    
611
#define FF_QSCALE_TYPE_MPEG1        0
612
#define FF_QSCALE_TYPE_MPEG2        1
613

    
614
#define FF_BUFFER_TYPE_INTERNAL 1
615
#define FF_BUFFER_TYPE_USER     2 ///< Direct rendering buffers (image is (de)allocated by user)
616
#define FF_BUFFER_TYPE_SHARED   4 ///< buffer from somewher else, dont dealloc image (data/base), all other tables are not shared
617
#define FF_BUFFER_TYPE_COPY     8 ///< just a (modified) copy of some other buffer, dont dealloc anything
618

    
619

    
620
#define FF_I_TYPE 1 // Intra
621
#define FF_P_TYPE 2 // Predicted
622
#define FF_B_TYPE 3 // Bi-dir predicted
623
#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
624
#define FF_SI_TYPE 5
625
#define FF_SP_TYPE 6
626

    
627
#define FF_BUFFER_HINTS_VALID    0x01 // Buffer hints value is meaningful (if 0 ignore)
628
#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
629
#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
630
#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
631

    
632
/**
633
 * Audio Video Frame.
634
 */
635
typedef struct AVFrame {
636
    FF_COMMON_FRAME
637
} AVFrame;
638

    
639
#define DEFAULT_FRAME_RATE_BASE 1001000
640

    
641
/**
642
 * Used by av_log
643
 */
644
typedef struct AVCLASS AVClass;
645
struct AVCLASS {
646
    const char* class_name;
647
    const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext
648
                                        or AVFormatContext, which begin with an AVClass.
649
                                        Needed because av_log is in libavcodec and has no visibility
650
                                        of AVIn/OutputFormat */
651
};
652

    
653
/**
654
 * main external api structure.
655
 */
656
typedef struct AVCodecContext {
657
    /**
658
     * Info on struct for av_log
659
     * - set by avcodec_alloc_context
660
     */
661
    AVClass *av_class;
662
    /**
663
     * the average bitrate.
664
     * - encoding: set by user. unused for constant quantizer encoding
665
     * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream 
666
     */
667
    int bit_rate;
668

    
669
    /**
670
     * number of bits the bitstream is allowed to diverge from the reference.
671
     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
672
     * - encoding: set by user. unused for constant quantizer encoding
673
     * - decoding: unused
674
     */
675
    int bit_rate_tolerance; 
676

    
677
    /**
678
     * CODEC_FLAG_*.
679
     * - encoding: set by user.
680
     * - decoding: set by user.
681
     */
682
    int flags;
683

    
684
    /**
685
     * some codecs needs additionnal format info. It is stored here
686
     * - encoding: set by user. 
687
     * - decoding: set by lavc. (FIXME is this ok?)
688
     */
689
    int sub_id;
690

    
691
    /**
692
     * motion estimation algorithm used for video coding.
693
     * - encoding: MUST be set by user.
694
     * - decoding: unused
695
     */
696
    int me_method;
697

    
698
    /**
699
     * some codecs need / can use extra-data like huffman tables.
700
     * mjpeg: huffman tables
701
     * rv10: additional flags
702
     * mpeg4: global headers (they can be in the bitstream or here)
703
     * the allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
704
     * then extradata_size to avoid prolems if its read with the bitstream reader
705
     * - encoding: set/allocated/freed by lavc.
706
     * - decoding: set/allocated/freed by user.
707
     */
708
    void *extradata;
709
    int extradata_size;
710
    
711
    /* video only */
712
    /**
713
     * frames per sec multiplied by frame_rate_base.
714
     * for variable fps this is the precission, so if the timestamps 
715
     * can be specified in msec precssion then this is 1000*frame_rate_base
716
     * - encoding: MUST be set by user
717
     * - decoding: set by lavc. 0 or the frame_rate if available
718
     */
719
    int frame_rate;
720
    
721
    /**
722
     * picture width / height.
723
     * - encoding: MUST be set by user. 
724
     * - decoding: set by lavc.
725
     * Note, for compatibility its possible to set this instead of 
726
     * coded_width/height before decoding
727
     */
728
    int width, height;
729
    
730
#define FF_ASPECT_EXTENDED 15
731

    
732
    /**
733
     * the number of pictures in a group of pitures, or 0 for intra_only.
734
     * - encoding: set by user.
735
     * - decoding: unused
736
     */
737
    int gop_size;
738

    
739
    /**
740
     * pixel format, see PIX_FMT_xxx.
741
     * - encoding: set by user.
742
     * - decoding: set by lavc.
743
     */
744
    enum PixelFormat pix_fmt;
745
 
746
    /**
747
     * Frame rate emulation. If not zero lower layer (i.e. format handler) 
748
     * has to read frames at native frame rate.
749
     * - encoding: set by user.
750
     * - decoding: unused.
751
     */
752
    int rate_emu;
753
       
754
    /**
755
     * if non NULL, 'draw_horiz_band' is called by the libavcodec
756
     * decoder to draw an horizontal band. It improve cache usage. Not
757
     * all codecs can do that. You must check the codec capabilities
758
     * before
759
     * - encoding: unused
760
     * - decoding: set by user.
761
     * @param height the height of the slice
762
     * @param y the y position of the slice
763
     * @param type 1->top field, 2->bottom field, 3->frame
764
     * @param offset offset into the AVFrame.data from which the slice should be read
765
     */
766
    void (*draw_horiz_band)(struct AVCodecContext *s,
767
                            const AVFrame *src, int offset[4],
768
                            int y, int type, int height);
769

    
770
    /* audio only */
771
    int sample_rate; ///< samples per sec 
772
    int channels;
773

    
774
    /**
775
     * audio sample format.
776
     * - encoding: set by user.
777
     * - decoding: set by lavc.
778
     */
779
    enum SampleFormat sample_fmt;  ///< sample format, currenly unused 
780

    
781
    /* the following data should not be initialized */
782
    int frame_size;     ///< in samples, initialized when calling 'init' 
783
    int frame_number;   ///< audio or video frame number 
784
    int real_pict_num;  ///< returns the real picture number of previous encoded frame 
785
    
786
    /**
787
     * number of frames the decoded output will be delayed relative to 
788
     * the encoded input.
789
     * - encoding: set by lavc.
790
     * - decoding: unused
791
     */
792
    int delay;
793
    
794
    /* - encoding parameters */
795
    float qcompress;  ///< amount of qscale change between easy & hard scenes (0.0-1.0)
796
    float qblur;      ///< amount of qscale smoothing over time (0.0-1.0) 
797
    
798
    /**
799
     * minimum quantizer.
800
     * - encoding: set by user.
801
     * - decoding: unused
802
     */
803
    int qmin;
804

    
805
    /**
806
     * maximum quantizer.
807
     * - encoding: set by user.
808
     * - decoding: unused
809
     */
810
    int qmax;
811

    
812
    /**
813
     * maximum quantizer difference etween frames.
814
     * - encoding: set by user.
815
     * - decoding: unused
816
     */
817
    int max_qdiff;
818

    
819
    /**
820
     * maximum number of b frames between non b frames.
821
     * note: the output will be delayed by max_b_frames+1 relative to the input
822
     * - encoding: set by user.
823
     * - decoding: unused
824
     */
825
    int max_b_frames;
826

    
827
    /**
828
     * qscale factor between ip and b frames.
829
     * - encoding: set by user.
830
     * - decoding: unused
831
     */
832
    float b_quant_factor;
833
    
834
    /** obsolete FIXME remove */
835
    int rc_strategy;
836
    int b_frame_strategy;
837

    
838
    /**
839
     * hurry up amount.
840
     * - encoding: unused
841
     * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
842
     */
843
    int hurry_up;
844
    
845
    struct AVCodec *codec;
846
    
847
    void *priv_data;
848

    
849
    /* unused, FIXME remove*/
850
    int rtp_mode;
851
    
852
    int rtp_payload_size;   /* The size of the RTP payload, the coder will  */
853
                            /* do it's best to deliver a chunk with size    */
854
                            /* below rtp_payload_size, the chunk will start */
855
                            /* with a start code on some codecs like H.263  */
856
                            /* This doesn't take account of any particular  */
857
                            /* headers inside the transmited RTP payload    */
858

    
859
    
860
    /* The RTP callcack: This function is called  */
861
    /* every time the encoder as a packet to send */
862
    /* Depends on the encoder if the data starts  */
863
    /* with a Start Code (it should) H.263 does.  */
864
    /* mb_nb contains the number of macroblocks   */
865
    /* encoded in the RTP payload                 */
866
    void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb); 
867

    
868
    /* statistics, used for 2-pass encoding */
869
    int mv_bits;
870
    int header_bits;
871
    int i_tex_bits;
872
    int p_tex_bits;
873
    int i_count;
874
    int p_count;
875
    int skip_count;
876
    int misc_bits;
877
    
878
    /**
879
     * number of bits used for the previously encoded frame.
880
     * - encoding: set by lavc
881
     * - decoding: unused
882
     */
883
    int frame_bits;
884

    
885
    /**
886
     * private data of the user, can be used to carry app specific stuff.
887
     * - encoding: set by user
888
     * - decoding: set by user
889
     */
890
    void *opaque;
891

    
892
    char codec_name[32];
893
    enum CodecType codec_type; /* see CODEC_TYPE_xxx */
894
    enum CodecID codec_id; /* see CODEC_ID_xxx */
895
    
896
    /**
897
     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
898
     * this is used to workaround some encoder bugs
899
     * - encoding: set by user, if not then the default based on codec_id will be used
900
     * - decoding: set by user, will be converted to upper case by lavc during init
901
     */
902
    unsigned int codec_tag;
903
    
904
    /**
905
     * workaround bugs in encoders which sometimes cannot be detected automatically.
906
     * - encoding: unused
907
     * - decoding: set by user
908
     */
909
    int workaround_bugs;
910
#define FF_BUG_AUTODETECT       1  ///< autodetection
911
#define FF_BUG_OLD_MSMPEG4      2
912
#define FF_BUG_XVID_ILACE       4
913
#define FF_BUG_UMP4             8
914
#define FF_BUG_NO_PADDING       16
915
#define FF_BUG_AMV              32
916
#define FF_BUG_AC_VLC           0  ///< will be removed, libavcodec can now handle these non compliant files by default
917
#define FF_BUG_QPEL_CHROMA      64
918
#define FF_BUG_STD_QPEL         128
919
#define FF_BUG_QPEL_CHROMA2     256
920
#define FF_BUG_DIRECT_BLOCKSIZE 512
921
#define FF_BUG_EDGE             1024
922
#define FF_BUG_HPEL_CHROMA      2048
923
#define FF_BUG_DC_CLIP          4096
924
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
925
        
926
    /**
927
     * luma single coeff elimination threshold.
928
     * - encoding: set by user
929
     * - decoding: unused
930
     */
931
    int luma_elim_threshold;
932
    
933
    /**
934
     * chroma single coeff elimination threshold.
935
     * - encoding: set by user
936
     * - decoding: unused
937
     */
938
    int chroma_elim_threshold;
939
    
940
    /**
941
     * strictly follow the std (MPEG4, ...).
942
     * - encoding: set by user
943
     * - decoding: unused
944
     */
945
    int strict_std_compliance;
946
    
947
    /**
948
     * qscale offset between ip and b frames.
949
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
950
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
951
     * - encoding: set by user.
952
     * - decoding: unused
953
     */
954
    float b_quant_offset;
955
    
956
    /**
957
     * error resilience higher values will detect more errors but may missdetect
958
     * some more or less valid parts as errors.
959
     * - encoding: unused
960
     * - decoding: set by user
961
     */
962
    int error_resilience;
963
#define FF_ER_CAREFULL        1
964
#define FF_ER_COMPLIANT       2
965
#define FF_ER_AGGRESSIVE      3
966
#define FF_ER_VERY_AGGRESSIVE 4
967
    
968
    /**
969
     * called at the beginning of each frame to get a buffer for it.
970
     * if pic.reference is set then the frame will be read later by lavc
971
     * avcodec_align_dimensions() should be used to find the required width and
972
     * height, as they normally need to be rounded up to the next multiple of 16
973
     * - encoding: unused
974
     * - decoding: set by lavc, user can override
975
     */
976
    int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
977
    
978
    /**
979
     * called to release buffers which where allocated with get_buffer.
980
     * a released buffer can be reused in get_buffer()
981
     * pic.data[*] must be set to NULL
982
     * - encoding: unused
983
     * - decoding: set by lavc, user can override
984
     */
985
    void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
986

    
987
    /**
988
     * if 1 the stream has a 1 frame delay during decoding.
989
     * - encoding: set by lavc
990
     * - decoding: set by lavc
991
     */
992
    int has_b_frames;
993
    
994
    int block_align; ///< used by some WAV based audio codecs
995
    
996
    int parse_only; /* - decoding only: if true, only parsing is done
997
                       (function avcodec_parse_frame()). The frame
998
                       data is returned. Only MPEG codecs support this now. */
999
    
1000
    /**
1001
     * 0-> h263 quant 1-> mpeg quant.
1002
     * - encoding: set by user.
1003
     * - decoding: unused
1004
     */
1005
    int mpeg_quant;
1006
    
1007
    /**
1008
     * pass1 encoding statistics output buffer.
1009
     * - encoding: set by lavc
1010
     * - decoding: unused
1011
     */
1012
    char *stats_out;
1013
    
1014
    /**
1015
     * pass2 encoding statistics input buffer.
1016
     * concatenated stuff from stats_out of pass1 should be placed here
1017
     * - encoding: allocated/set/freed by user
1018
     * - decoding: unused
1019
     */
1020
    char *stats_in;
1021
    
1022
    /**
1023
     * ratecontrol qmin qmax limiting method.
1024
     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
1025
     * - encoding: set by user.
1026
     * - decoding: unused
1027
     */
1028
    float rc_qsquish;
1029

    
1030
    float rc_qmod_amp;
1031
    int rc_qmod_freq;
1032
    
1033
    /**
1034
     * ratecontrol override, see RcOverride.
1035
     * - encoding: allocated/set/freed by user.
1036
     * - decoding: unused
1037
     */
1038
    RcOverride *rc_override;
1039
    int rc_override_count;
1040
    
1041
    /**
1042
     * rate control equation.
1043
     * - encoding: set by user
1044
     * - decoding: unused
1045
     */
1046
    char *rc_eq;
1047
    
1048
    /**
1049
     * maximum bitrate.
1050
     * - encoding: set by user.
1051
     * - decoding: unused
1052
     */
1053
    int rc_max_rate;
1054
    
1055
    /**
1056
     * minimum bitrate.
1057
     * - encoding: set by user.
1058
     * - decoding: unused
1059
     */
1060
    int rc_min_rate;
1061
    
1062
    /**
1063
     * decoder bitstream buffer size.
1064
     * - encoding: set by user.
1065
     * - decoding: unused
1066
     */
1067
    int rc_buffer_size;
1068
    float rc_buffer_aggressivity;
1069

    
1070
    /**
1071
     * qscale factor between p and i frames.
1072
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1073
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
1074
     * - encoding: set by user.
1075
     * - decoding: unused
1076
     */
1077
    float i_quant_factor;
1078
    
1079
    /**
1080
     * qscale offset between p and i frames.
1081
     * - encoding: set by user.
1082
     * - decoding: unused
1083
     */
1084
    float i_quant_offset;
1085
    
1086
    /**
1087
     * initial complexity for pass1 ratecontrol.
1088
     * - encoding: set by user.
1089
     * - decoding: unused
1090
     */
1091
    float rc_initial_cplx;
1092

    
1093
    /**
1094
     * dct algorithm, see FF_DCT_* below.
1095
     * - encoding: set by user
1096
     * - decoding: unused
1097
     */
1098
    int dct_algo;
1099
#define FF_DCT_AUTO    0
1100
#define FF_DCT_FASTINT 1
1101
#define FF_DCT_INT     2
1102
#define FF_DCT_MMX     3
1103
#define FF_DCT_MLIB    4
1104
#define FF_DCT_ALTIVEC 5
1105
#define FF_DCT_FAAN    6
1106
    
1107
    /**
1108
     * luminance masking (0-> disabled).
1109
     * - encoding: set by user
1110
     * - decoding: unused
1111
     */
1112
    float lumi_masking;
1113
    
1114
    /**
1115
     * temporary complexity masking (0-> disabled).
1116
     * - encoding: set by user
1117
     * - decoding: unused
1118
     */
1119
    float temporal_cplx_masking;
1120
    
1121
    /**
1122
     * spatial complexity masking (0-> disabled).
1123
     * - encoding: set by user
1124
     * - decoding: unused
1125
     */
1126
    float spatial_cplx_masking;
1127
    
1128
    /**
1129
     * p block masking (0-> disabled).
1130
     * - encoding: set by user
1131
     * - decoding: unused
1132
     */
1133
    float p_masking;
1134

    
1135
    /**
1136
     * darkness masking (0-> disabled).
1137
     * - encoding: set by user
1138
     * - decoding: unused
1139
     */
1140
    float dark_masking;
1141
    
1142
    
1143
    /* for binary compatibility */
1144
    int unused;
1145
    
1146
    /**
1147
     * idct algorithm, see FF_IDCT_* below.
1148
     * - encoding: set by user
1149
     * - decoding: set by user
1150
     */
1151
    int idct_algo;
1152
#define FF_IDCT_AUTO         0
1153
#define FF_IDCT_INT          1
1154
#define FF_IDCT_SIMPLE       2
1155
#define FF_IDCT_SIMPLEMMX    3
1156
#define FF_IDCT_LIBMPEG2MMX  4
1157
#define FF_IDCT_PS2          5
1158
#define FF_IDCT_MLIB         6
1159
#define FF_IDCT_ARM          7
1160
#define FF_IDCT_ALTIVEC      8
1161
#define FF_IDCT_SH4          9
1162
#define FF_IDCT_SIMPLEARM    10
1163
#define FF_IDCT_H264         11
1164

    
1165
    /**
1166
     * slice count.
1167
     * - encoding: set by lavc
1168
     * - decoding: set by user (or 0)
1169
     */
1170
    int slice_count;
1171
    /**
1172
     * slice offsets in the frame in bytes.
1173
     * - encoding: set/allocated by lavc
1174
     * - decoding: set/allocated by user (or NULL)
1175
     */
1176
    int *slice_offset;
1177

    
1178
    /**
1179
     * error concealment flags.
1180
     * - encoding: unused
1181
     * - decoding: set by user
1182
     */
1183
    int error_concealment;
1184
#define FF_EC_GUESS_MVS   1
1185
#define FF_EC_DEBLOCK     2
1186

    
1187
    /**
1188
     * dsp_mask could be add used to disable unwanted CPU features
1189
     * CPU features (i.e. MMX, SSE. ...)
1190
     *
1191
     * with FORCE flag you may instead enable given CPU features
1192
     * (Dangerous: usable in case of misdetection, improper usage however will
1193
     * result into program crash)
1194
     */
1195
    unsigned dsp_mask;
1196
#define FF_MM_FORCE        0x80000000 /* force usage of selected flags (OR) */
1197
    /* lower 16 bits - CPU features */
1198
#ifdef HAVE_MMX
1199
#define FF_MM_MMX        0x0001 /* standard MMX */
1200
#define FF_MM_3DNOW        0x0004 /* AMD 3DNOW */
1201
#define FF_MM_MMXEXT        0x0002 /* SSE integer functions or AMD MMX ext */
1202
#define FF_MM_SSE        0x0008 /* SSE functions */
1203
#define FF_MM_SSE2        0x0010 /* PIV SSE2 functions */
1204
#define FF_MM_3DNOWEXT        0x0020 /* AMD 3DNowExt */
1205
#endif /* HAVE_MMX */
1206

    
1207
    /**
1208
     * bits per sample/pixel from the demuxer (needed for huffyuv).
1209
     * - encoding: set by lavc
1210
     * - decoding: set by user
1211
     */
1212
     int bits_per_sample;
1213
    
1214
    /**
1215
     * prediction method (needed for huffyuv).
1216
     * - encoding: set by user
1217
     * - decoding: unused
1218
     */
1219
     int prediction_method;
1220
#define FF_PRED_LEFT   0
1221
#define FF_PRED_PLANE  1
1222
#define FF_PRED_MEDIAN 2
1223
    
1224
    /**
1225
     * sample aspect ratio (0 if unknown).
1226
     * numerator and denominator must be relative prime and smaller then 256 for some video standards
1227
     * - encoding: set by user.
1228
     * - decoding: set by lavc.
1229
     */
1230
    AVRational sample_aspect_ratio;
1231

    
1232
    /**
1233
     * the picture in the bitstream.
1234
     * - encoding: set by lavc
1235
     * - decoding: set by lavc
1236
     */
1237
    AVFrame *coded_frame;
1238

    
1239
    /**
1240
     * debug.
1241
     * - encoding: set by user.
1242
     * - decoding: set by user.
1243
     */
1244
    int debug;
1245
#define FF_DEBUG_PICT_INFO 1
1246
#define FF_DEBUG_RC        2
1247
#define FF_DEBUG_BITSTREAM 4
1248
#define FF_DEBUG_MB_TYPE   8
1249
#define FF_DEBUG_QP        16
1250
#define FF_DEBUG_MV        32
1251
#define FF_DEBUG_DCT_COEFF 0x00000040
1252
#define FF_DEBUG_SKIP      0x00000080
1253
#define FF_DEBUG_STARTCODE 0x00000100
1254
#define FF_DEBUG_PTS       0x00000200
1255
#define FF_DEBUG_ER        0x00000400
1256
#define FF_DEBUG_MMCO      0x00000800
1257
#define FF_DEBUG_BUGS      0x00001000
1258
#define FF_DEBUG_VIS_QP    0x00002000
1259
#define FF_DEBUG_VIS_MB_TYPE 0x00004000
1260
    
1261
    /**
1262
     * debug.
1263
     * - encoding: set by user.
1264
     * - decoding: set by user.
1265
     */
1266
    int debug_mv;
1267
#define FF_DEBUG_VIS_MV_P_FOR  0x00000001 //visualize forward predicted MVs of P frames
1268
#define FF_DEBUG_VIS_MV_B_FOR  0x00000002 //visualize forward predicted MVs of B frames
1269
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1270

    
1271
    /**
1272
     * error.
1273
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1274
     * - decoding: unused
1275
     */
1276
    uint64_t error[4];
1277
    
1278
    /**
1279
     * minimum MB quantizer.
1280
     * - encoding: unused
1281
     * - decoding: unused
1282
     */
1283
    int mb_qmin;
1284

    
1285
    /**
1286
     * maximum MB quantizer.
1287
     * - encoding: unused
1288
     * - decoding: unused
1289
     */
1290
    int mb_qmax;
1291
    
1292
    /**
1293
     * motion estimation compare function.
1294
     * - encoding: set by user.
1295
     * - decoding: unused
1296
     */
1297
    int me_cmp;
1298
    /**
1299
     * subpixel motion estimation compare function.
1300
     * - encoding: set by user.
1301
     * - decoding: unused
1302
     */
1303
    int me_sub_cmp;
1304
    /**
1305
     * macroblock compare function (not supported yet).
1306
     * - encoding: set by user.
1307
     * - decoding: unused
1308
     */
1309
    int mb_cmp;
1310
    /**
1311
     * interlaced dct compare function
1312
     * - encoding: set by user.
1313
     * - decoding: unused
1314
     */
1315
    int ildct_cmp;
1316
#define FF_CMP_SAD  0
1317
#define FF_CMP_SSE  1
1318
#define FF_CMP_SATD 2
1319
#define FF_CMP_DCT  3
1320
#define FF_CMP_PSNR 4
1321
#define FF_CMP_BIT  5
1322
#define FF_CMP_RD   6
1323
#define FF_CMP_ZERO 7
1324
#define FF_CMP_VSAD 8
1325
#define FF_CMP_VSSE 9
1326
#define FF_CMP_NSSE 10
1327
#define FF_CMP_W53  11
1328
#define FF_CMP_W97  12
1329
#define FF_CMP_DCTMAX 13
1330
#define FF_CMP_CHROMA 256
1331
    
1332
    /**
1333
     * ME diamond size & shape.
1334
     * - encoding: set by user.
1335
     * - decoding: unused
1336
     */
1337
    int dia_size;
1338

    
1339
    /**
1340
     * amount of previous MV predictors (2a+1 x 2a+1 square).
1341
     * - encoding: set by user.
1342
     * - decoding: unused
1343
     */
1344
    int last_predictor_count;
1345

    
1346
    /**
1347
     * pre pass for motion estimation.
1348
     * - encoding: set by user.
1349
     * - decoding: unused
1350
     */
1351
    int pre_me;
1352

    
1353
    /**
1354
     * motion estimation pre pass compare function.
1355
     * - encoding: set by user.
1356
     * - decoding: unused
1357
     */
1358
    int me_pre_cmp;
1359

    
1360
    /**
1361
     * ME pre pass diamond size & shape.
1362
     * - encoding: set by user.
1363
     * - decoding: unused
1364
     */
1365
    int pre_dia_size;
1366

    
1367
    /**
1368
     * subpel ME quality.
1369
     * - encoding: set by user.
1370
     * - decoding: unused
1371
     */
1372
    int me_subpel_quality;
1373

    
1374
    /**
1375
     * callback to negotiate the pixelFormat.
1376
     * @param fmt is the list of formats which are supported by the codec,
1377
     * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1378
     * the first is allways the native one
1379
     * @return the choosen format
1380
     * - encoding: unused
1381
     * - decoding: set by user, if not set then the native format will always be choosen
1382
     */
1383
    enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
1384

    
1385
    /**
1386
     * DTG active format information (additionnal aspect ratio
1387
     * information only used in DVB MPEG2 transport streams). 0 if
1388
     * not set.
1389
     * 
1390
     * - encoding: unused.
1391
     * - decoding: set by decoder 
1392
     */
1393
    int dtg_active_format;
1394
#define FF_DTG_AFD_SAME         8
1395
#define FF_DTG_AFD_4_3          9
1396
#define FF_DTG_AFD_16_9         10
1397
#define FF_DTG_AFD_14_9         11
1398
#define FF_DTG_AFD_4_3_SP_14_9  13
1399
#define FF_DTG_AFD_16_9_SP_14_9 14
1400
#define FF_DTG_AFD_SP_4_3       15
1401

    
1402
    /**
1403
     * Maximum motion estimation search range in subpel units.
1404
     * if 0 then no limit
1405
     * 
1406
     * - encoding: set by user.
1407
     * - decoding: unused.
1408
     */
1409
    int me_range;
1410

    
1411
    /**
1412
     * frame_rate_base.
1413
     * for variable fps this is 1
1414
     * - encoding: set by user.
1415
     * - decoding: set by lavc.
1416
     * @todo move this after frame_rate
1417
     */
1418

    
1419
    int frame_rate_base;
1420
    /**
1421
     * intra quantizer bias.
1422
     * - encoding: set by user.
1423
     * - decoding: unused
1424
     */
1425
    int intra_quant_bias;
1426
#define FF_DEFAULT_QUANT_BIAS 999999
1427
    
1428
    /**
1429
     * inter quantizer bias.
1430
     * - encoding: set by user.
1431
     * - decoding: unused
1432
     */
1433
    int inter_quant_bias;
1434

    
1435
    /**
1436
     * color table ID.
1437
     * - encoding: unused.
1438
     * - decoding: which clrtable should be used for 8bit RGB images
1439
     *             table have to be stored somewhere FIXME
1440
     */
1441
    int color_table_id;
1442
    
1443
    /**
1444
     * internal_buffer count. 
1445
     * Dont touch, used by lavc default_get_buffer()
1446
     */
1447
    int internal_buffer_count;
1448
    
1449
    /**
1450
     * internal_buffers. 
1451
     * Dont touch, used by lavc default_get_buffer()
1452
     */
1453
    void *internal_buffer;
1454

    
1455
#define FF_LAMBDA_SHIFT 7
1456
#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1457
#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1458
#define FF_LAMBDA_MAX (256*128-1)
1459

    
1460
#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
1461
    /**
1462
     * global quality for codecs which cannot change it per frame.
1463
     * this should be proportional to MPEG1/2/4 qscale.
1464
     * - encoding: set by user.
1465
     * - decoding: unused
1466
     */
1467
    int global_quality;
1468
    
1469
#define FF_CODER_TYPE_VLC   0
1470
#define FF_CODER_TYPE_AC    1
1471
    /**
1472
     * coder type
1473
     * - encoding: set by user.
1474
     * - decoding: unused
1475
     */
1476
    int coder_type;
1477

    
1478
    /**
1479
     * context model
1480
     * - encoding: set by user.
1481
     * - decoding: unused
1482
     */
1483
    int context_model;
1484
    
1485
    /**
1486
     * slice flags
1487
     * - encoding: unused
1488
     * - decoding: set by user.
1489
     */
1490
    int slice_flags;
1491
#define SLICE_FLAG_CODED_ORDER    0x0001 ///< draw_horiz_band() is called in coded order instead of display
1492
#define SLICE_FLAG_ALLOW_FIELD    0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1493
#define SLICE_FLAG_ALLOW_PLANE    0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1494

    
1495
    /**
1496
     * XVideo Motion Acceleration
1497
     * - encoding: forbidden
1498
     * - decoding: set by decoder
1499
     */
1500
    int xvmc_acceleration;
1501
    
1502
    /**
1503
     * macroblock decision mode
1504
     * - encoding: set by user.
1505
     * - decoding: unused
1506
     */
1507
    int mb_decision;
1508
#define FF_MB_DECISION_SIMPLE 0        ///< uses mb_cmp
1509
#define FF_MB_DECISION_BITS   1        ///< chooses the one which needs the fewest bits
1510
#define FF_MB_DECISION_RD     2        ///< rate distoration
1511

    
1512
    /**
1513
     * custom intra quantization matrix
1514
     * - encoding: set by user, can be NULL
1515
     * - decoding: set by lavc
1516
     */
1517
    uint16_t *intra_matrix;
1518

    
1519
    /**
1520
     * custom inter quantization matrix
1521
     * - encoding: set by user, can be NULL
1522
     * - decoding: set by lavc
1523
     */
1524
    uint16_t *inter_matrix;
1525
    
1526
    /**
1527
     * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1528
     * this is used to workaround some encoder bugs
1529
     * - encoding: unused
1530
     * - decoding: set by user, will be converted to upper case by lavc during init
1531
     */
1532
    unsigned int stream_codec_tag;
1533

    
1534
    /**
1535
     * scene change detection threshold.
1536
     * 0 is default, larger means fewer detected scene changes
1537
     * - encoding: set by user.
1538
     * - decoding: unused
1539
     */
1540
    int scenechange_threshold;
1541

    
1542
    /**
1543
     * minimum lagrange multipler
1544
     * - encoding: set by user.
1545
     * - decoding: unused
1546
     */
1547
    int lmin;
1548

    
1549
    /**
1550
     * maximum lagrange multipler
1551
     * - encoding: set by user.
1552
     * - decoding: unused
1553
     */
1554
    int lmax;
1555

    
1556
    /**
1557
     * Palette control structure
1558
     * - encoding: ??? (no palette-enabled encoder yet)
1559
     * - decoding: set by user.
1560
     */
1561
    struct AVPaletteControl *palctrl;
1562

    
1563
    /**
1564
     * noise reduction strength
1565
     * - encoding: set by user.
1566
     * - decoding: unused
1567
     */
1568
    int noise_reduction;
1569
    
1570
    /**
1571
     * called at the beginning of a frame to get cr buffer for it.
1572
     * buffer type (size, hints) must be the same. lavc won't check it.
1573
     * lavc will pass previous buffer in pic, function should return
1574
     * same buffer or new buffer with old frame "painted" into it.
1575
     * if pic.data[0] == NULL must behave like get_buffer().
1576
     * - encoding: unused
1577
     * - decoding: set by lavc, user can override
1578
     */
1579
    int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
1580

    
1581
    /**
1582
     * number of bits which should be loaded into the rc buffer before decoding starts
1583
     * - encoding: set by user.
1584
     * - decoding: unused
1585
     */
1586
    int rc_initial_buffer_occupancy;
1587

    
1588
    /**
1589
     *
1590
     * - encoding: set by user.
1591
     * - decoding: unused
1592
     */
1593
    int inter_threshold;
1594

    
1595
    /**
1596
     * CODEC_FLAG2_*.
1597
     * - encoding: set by user.
1598
     * - decoding: set by user.
1599
     */
1600
    int flags2;
1601

    
1602
    /**
1603
     * simulates errors in the bitstream to test error concealment.
1604
     * - encoding: set by user.
1605
     * - decoding: unused.
1606
     */
1607
    int error_rate;
1608
    
1609
    /**
1610
     * MP3 antialias algorithm, see FF_AA_* below.
1611
     * - encoding: unused
1612
     * - decoding: set by user
1613
     */
1614
    int antialias_algo;
1615
#define FF_AA_AUTO    0
1616
#define FF_AA_FASTINT 1 //not implemented yet
1617
#define FF_AA_INT     2
1618
#define FF_AA_FLOAT   3
1619
    /**
1620
     * Quantizer noise shaping.
1621
     * - encoding: set by user
1622
     * - decoding: unused
1623
     */
1624
    int quantizer_noise_shaping;
1625

    
1626
    /**
1627
     * Thread count.
1628
     * is used to decide how many independant tasks should be passed to execute()
1629
     * - encoding: set by user
1630
     * - decoding: set by user
1631
     */
1632
    int thread_count;
1633
    
1634
    /**
1635
     * the codec may call this to execute several independant things. it will return only after
1636
     * finishing all tasks, the user may replace this with some multithreaded implementation, the
1637
     * default implementation will execute the parts serially
1638
     * @param count the number of things to execute
1639
     * - encoding: set by lavc, user can override
1640
     * - decoding: set by lavc, user can override
1641
     */
1642
    int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
1643
    
1644
    /**
1645
     * Thread opaque.
1646
     * can be used by execute() to store some per AVCodecContext stuff.
1647
     * - encoding: set by execute()
1648
     * - decoding: set by execute()
1649
     */
1650
    void *thread_opaque;
1651

    
1652
    /**
1653
     * Motion estimation threshold. under which no motion estimation is 
1654
     * performed, but instead the user specified motion vectors are used
1655
     * 
1656
     * - encoding: set by user
1657
     * - decoding: unused
1658
     */
1659
     int me_threshold;
1660

    
1661
    /**
1662
     * Macroblock threshold. under which the user specified macroblock types will be used
1663
     * - encoding: set by user
1664
     * - decoding: unused
1665
     */
1666
     int mb_threshold;
1667

    
1668
    /**
1669
     * precision of the intra dc coefficient - 8.
1670
     * - encoding: set by user
1671
     * - decoding: unused
1672
     */
1673
     int intra_dc_precision;
1674

    
1675
    /**
1676
     * noise vs. sse weight for the nsse comparsion function.
1677
     * - encoding: set by user
1678
     * - decoding: unused
1679
     */
1680
     int nsse_weight;
1681

    
1682
    /**
1683
     * number of macroblock rows at the top which are skiped.
1684
     * - encoding: unused
1685
     * - decoding: set by user
1686
     */
1687
     int skip_top;
1688

    
1689
    /**
1690
     * number of macroblock rows at the bottom which are skiped.
1691
     * - encoding: unused
1692
     * - decoding: set by user
1693
     */
1694
     int skip_bottom;
1695

    
1696
    /**
1697
     * profile
1698
     * - encoding: set by user
1699
     * - decoding: set by lavc
1700
     */
1701
     int profile;
1702
#define FF_PROFILE_UNKNOWN -99
1703

    
1704
    /**
1705
     * level
1706
     * - encoding: set by user
1707
     * - decoding: set by lavc
1708
     */
1709
     int level;
1710
#define FF_LEVEL_UNKNOWN -99
1711

    
1712
    /**
1713
     * low resolution decoding. 1-> 1/2 size, 2->1/4 size
1714
     * - encoding: unused
1715
     * - decoding: set by user
1716
     */
1717
     int lowres;
1718

    
1719
    /**
1720
     * bitsream width / height. may be different from width/height if lowres
1721
     * or other things are used
1722
     * - encoding: unused
1723
     * - decoding: set by user before init if known, codec should override / dynamically change if needed
1724
     */
1725
    int coded_width, coded_height;
1726

    
1727
    /**
1728
     * frame skip threshold
1729
     * - encoding: set by user
1730
     * - decoding: unused
1731
     */
1732
    int frame_skip_threshold;
1733

    
1734
    /**
1735
     * frame skip factor
1736
     * - encoding: set by user
1737
     * - decoding: unused
1738
     */
1739
    int frame_skip_factor;
1740

    
1741
    /**
1742
     * frame skip exponent
1743
     * - encoding: set by user
1744
     * - decoding: unused
1745
     */
1746
    int frame_skip_exp;
1747

    
1748
    /**
1749
     * frame skip comparission function
1750
     * - encoding: set by user.
1751
     * - decoding: unused
1752
     */
1753
    int frame_skip_cmp;
1754

    
1755
    /**
1756
     * border processing masking. raises the quantizer for mbs on the borders
1757
     * of the picture.
1758
     * - encoding: set by user
1759
     * - decoding: unused
1760
     */
1761
    float border_masking;
1762

    
1763
    /**
1764
     * minimum MB lagrange multipler.
1765
     * - encoding: set by user.
1766
     * - decoding: unused
1767
     */
1768
    int mb_lmin;
1769

    
1770
    /**
1771
     * maximum MB lagrange multipler.
1772
     * - encoding: set by user.
1773
     * - decoding: unused
1774
     */
1775
    int mb_lmax;
1776
} AVCodecContext;
1777

    
1778

    
1779
/**
1780
 * AVOption.
1781
 */
1782
typedef struct AVOption {
1783
    /** options' name */
1784
    const char *name; /* if name is NULL, it indicates a link to next */
1785
    /** short English text help or const struct AVOption* subpointer */
1786
    const char *help; //        const struct AVOption* sub;
1787
    /** offset to context structure where the parsed value should be stored */
1788
    int offset;
1789
    /** options' type */
1790
    int type;
1791
#define FF_OPT_TYPE_BOOL 1      ///< boolean - true,1,on  (or simply presence)
1792
#define FF_OPT_TYPE_DOUBLE 2    ///< double
1793
#define FF_OPT_TYPE_INT 3       ///< integer
1794
#define FF_OPT_TYPE_STRING 4    ///< string (finished with \0)
1795
#define FF_OPT_TYPE_MASK 0x1f        ///< mask for types - upper bits are various flags
1796
//#define FF_OPT_TYPE_EXPERT 0x20 // flag for expert option
1797
#define FF_OPT_TYPE_FLAG (FF_OPT_TYPE_BOOL | 0x40)
1798
#define FF_OPT_TYPE_RCOVERRIDE (FF_OPT_TYPE_STRING | 0x80)
1799
    /** min value  (min == max   ->  no limits) */
1800
    double min;
1801
    /** maximum value for double/int */
1802
    double max;
1803
    /** default boo [0,1]l/double/int value */
1804
    double defval;
1805
    /**
1806
     * default string value (with optional semicolon delimited extra option-list
1807
     * i.e.   option1;option2;option3
1808
     * defval might select other then first argument as default
1809
     */
1810
    const char *defstr;
1811
#define FF_OPT_MAX_DEPTH 10
1812
} AVOption;
1813

    
1814
/**
1815
 * Parse option(s) and sets fields in passed structure
1816
 * @param strct        structure where the parsed results will be written
1817
 * @param list  list with AVOptions
1818
 * @param opts        string with options for parsing
1819
 */
1820
int avoption_parse(void* strct, const AVOption* list, const char* opts);
1821

    
1822

    
1823
/**
1824
 * AVCodec.
1825
 */
1826
typedef struct AVCodec {
1827
    const char *name;
1828
    enum CodecType type;
1829
    enum CodecID id;
1830
    int priv_data_size;
1831
    int (*init)(AVCodecContext *);
1832
    int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
1833
    int (*close)(AVCodecContext *);
1834
    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
1835
                  uint8_t *buf, int buf_size);
1836
    int capabilities;
1837
    const AVOption *options;
1838
    struct AVCodec *next;
1839
    void (*flush)(AVCodecContext *);
1840
    const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
1841
    const enum PixelFormat *pix_fmts;       ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
1842
} AVCodec;
1843

    
1844
/**
1845
 * four components are given, that's all.
1846
 * the last component is alpha
1847
 */
1848
typedef struct AVPicture {
1849
    uint8_t *data[4];
1850
    int linesize[4];       ///< number of bytes per line
1851
} AVPicture;
1852

    
1853
/**
1854
 * AVPaletteControl
1855
 * This structure defines a method for communicating palette changes
1856
 * between and demuxer and a decoder.
1857
 */
1858
#define AVPALETTE_SIZE 1024
1859
#define AVPALETTE_COUNT 256
1860
typedef struct AVPaletteControl {
1861

    
1862
    /* demuxer sets this to 1 to indicate the palette has changed;
1863
     * decoder resets to 0 */
1864
    int palette_changed;
1865

    
1866
    /* 4-byte ARGB palette entries, stored in native byte order; note that
1867
     * the individual palette components should be on a 8-bit scale; if
1868
     * the palette data comes from a IBM VGA native format, the component
1869
     * data is probably 6 bits in size and needs to be scaled */
1870
    unsigned int palette[AVPALETTE_COUNT];
1871

    
1872
} AVPaletteControl;
1873

    
1874
extern AVCodec ac3_encoder;
1875
extern AVCodec mp2_encoder;
1876
extern AVCodec mp3lame_encoder;
1877
extern AVCodec oggvorbis_encoder;
1878
extern AVCodec faac_encoder;
1879
extern AVCodec xvid_encoder;
1880
extern AVCodec mpeg1video_encoder;
1881
extern AVCodec mpeg2video_encoder;
1882
extern AVCodec h261_encoder;
1883
extern AVCodec h263_encoder;
1884
extern AVCodec h263p_encoder;
1885
extern AVCodec flv_encoder;
1886
extern AVCodec rv10_encoder;
1887
extern AVCodec rv20_encoder;
1888
extern AVCodec dvvideo_encoder;
1889
extern AVCodec mjpeg_encoder;
1890
extern AVCodec ljpeg_encoder;
1891
extern AVCodec png_encoder;
1892
extern AVCodec ppm_encoder;
1893
extern AVCodec pgm_encoder;
1894
extern AVCodec pgmyuv_encoder;
1895
extern AVCodec pbm_encoder;
1896
extern AVCodec pam_encoder;
1897
extern AVCodec mpeg4_encoder;
1898
extern AVCodec msmpeg4v1_encoder;
1899
extern AVCodec msmpeg4v2_encoder;
1900
extern AVCodec msmpeg4v3_encoder;
1901
extern AVCodec wmv1_encoder;
1902
extern AVCodec wmv2_encoder;
1903
extern AVCodec huffyuv_encoder;
1904
extern AVCodec ffvhuff_encoder;
1905
extern AVCodec h264_encoder;
1906
extern AVCodec asv1_encoder;
1907
extern AVCodec asv2_encoder;
1908
extern AVCodec vcr1_encoder;
1909
extern AVCodec ffv1_encoder;
1910
extern AVCodec snow_encoder;
1911
extern AVCodec mdec_encoder;
1912
extern AVCodec zlib_encoder;
1913
extern AVCodec sonic_encoder;
1914
extern AVCodec sonic_ls_encoder;
1915
extern AVCodec svq1_encoder;
1916

    
1917
extern AVCodec h263_decoder;
1918
extern AVCodec h261_decoder;
1919
extern AVCodec mpeg4_decoder;
1920
extern AVCodec msmpeg4v1_decoder;
1921
extern AVCodec msmpeg4v2_decoder;
1922
extern AVCodec msmpeg4v3_decoder;
1923
extern AVCodec wmv1_decoder;
1924
extern AVCodec wmv2_decoder;
1925
extern AVCodec vc9_decoder;
1926
extern AVCodec wmv3_decoder;
1927
extern AVCodec mpeg1video_decoder;
1928
extern AVCodec mpeg2video_decoder;
1929
extern AVCodec mpegvideo_decoder;
1930
extern AVCodec mpeg_xvmc_decoder;
1931
extern AVCodec h263i_decoder;
1932
extern AVCodec flv_decoder;
1933
extern AVCodec rv10_decoder;
1934
extern AVCodec rv20_decoder;
1935
extern AVCodec rv30_decoder;
1936
extern AVCodec rv40_decoder;
1937
extern AVCodec svq1_decoder;
1938
extern AVCodec svq3_decoder;
1939
extern AVCodec dvvideo_decoder;
1940
extern AVCodec wmav1_decoder;
1941
extern AVCodec wmav2_decoder;
1942
extern AVCodec mjpeg_decoder;
1943
extern AVCodec mjpegb_decoder;
1944
extern AVCodec sp5x_decoder;
1945
extern AVCodec png_decoder;
1946
extern AVCodec mp2_decoder;
1947
extern AVCodec mp3_decoder;
1948
extern AVCodec mp3adu_decoder;
1949
extern AVCodec mace3_decoder;
1950
extern AVCodec mace6_decoder;
1951
extern AVCodec huffyuv_decoder;
1952
extern AVCodec ffvhuff_decoder;
1953
extern AVCodec oggvorbis_decoder;
1954
extern AVCodec cyuv_decoder;
1955
extern AVCodec h264_decoder;
1956
extern AVCodec indeo3_decoder;
1957
extern AVCodec vp3_decoder;
1958
extern AVCodec theora_decoder;
1959
extern AVCodec amr_nb_decoder;
1960
extern AVCodec amr_nb_encoder;
1961
extern AVCodec amr_wb_encoder;
1962
extern AVCodec amr_wb_decoder;
1963
extern AVCodec aac_decoder;
1964
extern AVCodec mpeg4aac_decoder;
1965
extern AVCodec asv1_decoder;
1966
extern AVCodec asv2_decoder;
1967
extern AVCodec vcr1_decoder;
1968
extern AVCodec cljr_decoder;
1969
extern AVCodec ffv1_decoder;
1970
extern AVCodec snow_decoder;
1971
extern AVCodec fourxm_decoder;
1972
extern AVCodec mdec_decoder;
1973
extern AVCodec roq_decoder;
1974
extern AVCodec interplay_video_decoder;
1975
extern AVCodec xan_wc3_decoder;
1976
extern AVCodec rpza_decoder;
1977
extern AVCodec cinepak_decoder;
1978
extern AVCodec msrle_decoder;
1979
extern AVCodec msvideo1_decoder;
1980
extern AVCodec vqa_decoder;
1981
extern AVCodec idcin_decoder;
1982
extern AVCodec eightbps_decoder;
1983
extern AVCodec smc_decoder;
1984
extern AVCodec flic_decoder;
1985
extern AVCodec vmdvideo_decoder;
1986
extern AVCodec vmdaudio_decoder;
1987
extern AVCodec truemotion1_decoder;
1988
extern AVCodec mszh_decoder;
1989
extern AVCodec zlib_decoder;
1990
extern AVCodec ra_144_decoder;
1991
extern AVCodec ra_288_decoder;
1992
extern AVCodec roq_dpcm_decoder;
1993
extern AVCodec interplay_dpcm_decoder;
1994
extern AVCodec xan_dpcm_decoder;
1995
extern AVCodec sol_dpcm_decoder;
1996
extern AVCodec sonic_decoder;
1997
extern AVCodec qtrle_decoder;
1998
extern AVCodec flac_decoder;
1999
extern AVCodec tscc_decoder;
2000
extern AVCodec ulti_decoder;
2001
extern AVCodec qdraw_decoder;
2002
extern AVCodec xl_decoder;
2003
extern AVCodec qpeg_decoder;
2004

    
2005
/* pcm codecs */
2006
#define PCM_CODEC(id, name) \
2007
extern AVCodec name ## _decoder; \
2008
extern AVCodec name ## _encoder
2009

    
2010
PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
2011
PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
2012
PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
2013
PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
2014
PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
2015
PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
2016
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
2017
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
2018

    
2019
/* adpcm codecs */
2020

    
2021
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
2022
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
2023
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
2024
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
2025
PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
2026
PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
2027
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
2028
PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
2029
PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
2030
PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
2031
PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
2032
PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
2033
PCM_CODEC(CODEC_ID_ADPCM_CT, adpcm_ct);
2034

    
2035
#undef PCM_CODEC
2036

    
2037
/* dummy raw video codec */
2038
extern AVCodec rawvideo_encoder;
2039
extern AVCodec rawvideo_decoder;
2040

    
2041
/* the following codecs use external GPL libs */
2042
extern AVCodec ac3_decoder;
2043
extern AVCodec dts_decoder;
2044

    
2045
/* resample.c */
2046

    
2047
struct ReSampleContext;
2048
struct AVResampleContext;
2049

    
2050
typedef struct ReSampleContext ReSampleContext;
2051

    
2052
ReSampleContext *audio_resample_init(int output_channels, int input_channels, 
2053
                                     int output_rate, int input_rate);
2054
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
2055
void audio_resample_close(ReSampleContext *s);
2056

    
2057
struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
2058
int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
2059
void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
2060
void av_resample_close(struct AVResampleContext *c);
2061

    
2062
/* YUV420 format is assumed ! */
2063

    
2064
struct ImgReSampleContext;
2065

    
2066
typedef struct ImgReSampleContext ImgReSampleContext;
2067

    
2068
ImgReSampleContext *img_resample_init(int output_width, int output_height,
2069
                                      int input_width, int input_height);
2070

    
2071
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
2072
                                      int iwidth, int iheight,
2073
                                      int topBand, int bottomBand,
2074
                                      int leftBand, int rightBand,
2075
                                      int padtop, int padbottom,
2076
                                      int padleft, int padright);
2077

    
2078

    
2079
void img_resample(ImgReSampleContext *s, 
2080
                  AVPicture *output, const AVPicture *input);
2081

    
2082
void img_resample_close(ImgReSampleContext *s);
2083

    
2084
/**
2085
 * Allocate memory for a picture.  Call avpicture_free to free it.
2086
 *
2087
 * @param picture the picture to be filled in.
2088
 * @param pix_fmt the format of the picture.
2089
 * @param width the width of the picture.
2090
 * @param height the height of the picture.
2091
 * @return 0 if successful, -1 if not.
2092
 */
2093
int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
2094

    
2095
/* Free a picture previously allocated by avpicture_alloc. */
2096
void avpicture_free(AVPicture *picture);
2097

    
2098
int avpicture_fill(AVPicture *picture, uint8_t *ptr,
2099
                   int pix_fmt, int width, int height);
2100
int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
2101
                     unsigned char *dest, int dest_size);
2102
int avpicture_get_size(int pix_fmt, int width, int height);
2103
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
2104
const char *avcodec_get_pix_fmt_name(int pix_fmt);
2105
void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
2106
enum PixelFormat avcodec_get_pix_fmt(const char* name);
2107
unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat p);
2108

    
2109
#define FF_LOSS_RESOLUTION  0x0001 /* loss due to resolution change */
2110
#define FF_LOSS_DEPTH       0x0002 /* loss due to color depth change */
2111
#define FF_LOSS_COLORSPACE  0x0004 /* loss due to color space conversion */
2112
#define FF_LOSS_ALPHA       0x0008 /* loss of alpha bits */
2113
#define FF_LOSS_COLORQUANT  0x0010 /* loss due to color quantization */
2114
#define FF_LOSS_CHROMA      0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
2115

    
2116
int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
2117
                             int has_alpha);
2118
int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
2119
                              int has_alpha, int *loss_ptr);
2120

    
2121
#define FF_ALPHA_TRANSP       0x0001 /* image has some totally transparent pixels */
2122
#define FF_ALPHA_SEMI_TRANSP  0x0002 /* image has some transparent pixels */
2123
int img_get_alpha_info(const AVPicture *src,
2124
                       int pix_fmt, int width, int height);
2125

    
2126
/* convert among pixel formats */
2127
int img_convert(AVPicture *dst, int dst_pix_fmt,
2128
                const AVPicture *src, int pix_fmt, 
2129
                int width, int height);
2130

    
2131
/* deinterlace a picture */
2132
int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
2133
                          int pix_fmt, int width, int height);
2134

    
2135
/* external high level API */
2136

    
2137
extern AVCodec *first_avcodec;
2138

    
2139
/* returns LIBAVCODEC_VERSION_INT constant */
2140
unsigned avcodec_version(void);
2141
/* returns LIBAVCODEC_BUILD constant */
2142
unsigned avcodec_build(void);
2143
void avcodec_init(void);
2144

    
2145
void register_avcodec(AVCodec *format);
2146
AVCodec *avcodec_find_encoder(enum CodecID id);
2147
AVCodec *avcodec_find_encoder_by_name(const char *name);
2148
AVCodec *avcodec_find_decoder(enum CodecID id);
2149
AVCodec *avcodec_find_decoder_by_name(const char *name);
2150
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
2151

    
2152
void avcodec_get_context_defaults(AVCodecContext *s);
2153
AVCodecContext *avcodec_alloc_context(void);
2154
void avcodec_get_frame_defaults(AVFrame *pic);
2155
AVFrame *avcodec_alloc_frame(void);
2156

    
2157
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
2158
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
2159
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
2160
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
2161
int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h);
2162
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
2163

    
2164
int avcodec_thread_init(AVCodecContext *s, int thread_count);
2165
void avcodec_thread_free(AVCodecContext *s);
2166
int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2167
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2168
//FIXME func typedef
2169

    
2170
/**
2171
 * opens / inits the AVCodecContext.
2172
 * not thread save!
2173
 */
2174
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
2175

    
2176
int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples, 
2177
                         int *frame_size_ptr,
2178
                         uint8_t *buf, int buf_size);
2179
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture, 
2180
                         int *got_picture_ptr,
2181
                         uint8_t *buf, int buf_size);
2182
int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata, 
2183
                        int *data_size_ptr,
2184
                        uint8_t *buf, int buf_size);
2185
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
2186
                         const short *samples);
2187
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
2188
                         const AVFrame *pict);
2189

    
2190
int avcodec_close(AVCodecContext *avctx);
2191

    
2192
void avcodec_register_all(void);
2193

    
2194
void avcodec_flush_buffers(AVCodecContext *avctx);
2195

    
2196
/* misc usefull functions */
2197

    
2198
/**
2199
 * returns a single letter to describe the picture type
2200
 */
2201
char av_get_pict_type_char(int pict_type);
2202

    
2203
/**
2204
 * reduce a fraction.
2205
 * this is usefull for framerate calculations
2206
 * @param max the maximum allowed for dst_nom & dst_den
2207
 * @return 1 if exact, 0 otherwise
2208
 */
2209
int av_reduce(int *dst_nom, int *dst_den, int64_t nom, int64_t den, int64_t max);
2210

    
2211
/**
2212
 * rescale a 64bit integer with rounding to nearest.
2213
 * a simple a*b/c isnt possible as it can overflow
2214
 */
2215
int64_t av_rescale(int64_t a, int64_t b, int64_t c);
2216

    
2217
/**
2218
 * rescale a 64bit integer with specified rounding.
2219
 * a simple a*b/c isnt possible as it can overflow
2220
 */
2221
int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding);
2222

    
2223
/* frame parsing */
2224
typedef struct AVCodecParserContext {
2225
    void *priv_data;
2226
    struct AVCodecParser *parser;
2227
    int64_t frame_offset; /* offset of the current frame */
2228
    int64_t cur_offset; /* current offset 
2229
                           (incremented by each av_parser_parse()) */
2230
    int64_t last_frame_offset; /* offset of the last frame */
2231
    /* video info */
2232
    int pict_type; /* XXX: put it back in AVCodecContext */
2233
    int repeat_pict; /* XXX: put it back in AVCodecContext */
2234
    int64_t pts;     /* pts of the current frame */
2235
    int64_t dts;     /* dts of the current frame */
2236

    
2237
    /* private data */
2238
    int64_t last_pts;
2239
    int64_t last_dts;
2240
    int fetch_timestamp;
2241

    
2242
#define AV_PARSER_PTS_NB 4
2243
    int cur_frame_start_index;
2244
    int64_t cur_frame_offset[AV_PARSER_PTS_NB];
2245
    int64_t cur_frame_pts[AV_PARSER_PTS_NB];
2246
    int64_t cur_frame_dts[AV_PARSER_PTS_NB];
2247
} AVCodecParserContext;
2248

    
2249
typedef struct AVCodecParser {
2250
    int codec_ids[5]; /* several codec IDs are permitted */
2251
    int priv_data_size;
2252
    int (*parser_init)(AVCodecParserContext *s);
2253
    int (*parser_parse)(AVCodecParserContext *s, 
2254
                        AVCodecContext *avctx,
2255
                        uint8_t **poutbuf, int *poutbuf_size, 
2256
                        const uint8_t *buf, int buf_size);
2257
    void (*parser_close)(AVCodecParserContext *s);
2258
    struct AVCodecParser *next;
2259
} AVCodecParser;
2260

    
2261
extern AVCodecParser *av_first_parser;
2262

    
2263
void av_register_codec_parser(AVCodecParser *parser);
2264
AVCodecParserContext *av_parser_init(int codec_id);
2265
int av_parser_parse(AVCodecParserContext *s, 
2266
                    AVCodecContext *avctx,
2267
                    uint8_t **poutbuf, int *poutbuf_size, 
2268
                    const uint8_t *buf, int buf_size,
2269
                    int64_t pts, int64_t dts);
2270
void av_parser_close(AVCodecParserContext *s);
2271

    
2272
extern AVCodecParser mpegvideo_parser;
2273
extern AVCodecParser mpeg4video_parser;
2274
extern AVCodecParser h261_parser;
2275
extern AVCodecParser h263_parser;
2276
extern AVCodecParser h264_parser;
2277
extern AVCodecParser mjpeg_parser;
2278
extern AVCodecParser pnm_parser;
2279
extern AVCodecParser mpegaudio_parser;
2280
extern AVCodecParser ac3_parser;
2281

    
2282
/* memory */
2283
void *av_malloc(unsigned int size);
2284
void *av_mallocz(unsigned int size);
2285
void *av_realloc(void *ptr, unsigned int size);
2286
void av_free(void *ptr);
2287
char *av_strdup(const char *s);
2288
void av_freep(void *ptr);
2289
void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
2290
/* for static data only */
2291
/* call av_free_static to release all staticaly allocated tables */
2292
void av_free_static(void);
2293
void *av_mallocz_static(unsigned int size);
2294
void *av_realloc_static(void *ptr, unsigned int size);
2295

    
2296
/* add by bero : in adx.c */
2297
int is_adx(const unsigned char *buf,size_t bufsize);
2298

    
2299
void img_copy(AVPicture *dst, const AVPicture *src,
2300
              int pix_fmt, int width, int height);
2301

    
2302
/* av_log API */
2303

    
2304
#include <stdarg.h>
2305

    
2306
#define AV_LOG_QUIET -1
2307
#define AV_LOG_ERROR 0
2308
#define AV_LOG_INFO 1
2309
#define AV_LOG_DEBUG 2
2310

    
2311
#ifdef __GNUC__
2312
extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
2313
#else
2314
extern void av_log(void*, int level, const char *fmt, ...);
2315
#endif
2316

    
2317
extern void av_vlog(void*, int level, const char *fmt, va_list);
2318
extern int av_log_get_level(void);
2319
extern void av_log_set_level(int);
2320
extern void av_log_set_callback(void (*)(void*, int, const char*, va_list));
2321

    
2322
/* endian macros */
2323
#if !defined(BE_16) || !defined(BE_32) || !defined(LE_16) || !defined(LE_32)
2324
#define BE_16(x)  ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
2325
#define BE_32(x)  ((((uint8_t*)(x))[0] << 24) | \
2326
                   (((uint8_t*)(x))[1] << 16) | \
2327
                   (((uint8_t*)(x))[2] << 8) | \
2328
                    ((uint8_t*)(x))[3])
2329
#define LE_16(x)  ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
2330
#define LE_32(x)  ((((uint8_t*)(x))[3] << 24) | \
2331
                   (((uint8_t*)(x))[2] << 16) | \
2332
                   (((uint8_t*)(x))[1] << 8) | \
2333
                    ((uint8_t*)(x))[0])
2334
#endif
2335

    
2336
#ifdef __cplusplus
2337
}
2338
#endif
2339

    
2340
#endif /* AVCODEC_H */