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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       4720
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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_MP2,
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    CODEC_ID_MP3, /* prefered ID for MPEG Audio layer 1, 2 or3 decoding */
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    CODEC_ID_VORBIS,
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    CODEC_ID_AC3,
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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_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_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_AAC,
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    CODEC_ID_MPEG4AAC,
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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_VMDAUDIO,
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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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    /* various pcm "codecs" */
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    CODEC_ID_PCM_S16LE,
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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,
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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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        /* AMR */
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    CODEC_ID_AMR_NB,
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    CODEC_ID_AMR_WB,
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    /* RealAudio codecs*/
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    CODEC_ID_RA_144,
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    CODEC_ID_RA_288,
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    /* various DPCM codecs */
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    CODEC_ID_ROQ_DPCM,
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    CODEC_ID_INTERPLAY_DPCM,
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    CODEC_ID_XAN_DPCM,
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    CODEC_ID_FLAC,
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    CODEC_ID_MPEG2TS, /* _FAKE_ codec to indicate a raw MPEG2 transport
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                         stream (only used by libavformat) */
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    CODEC_ID_DTS,
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    CODEC_ID_XVID,
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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_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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};
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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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/* 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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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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/* Unsupported options :
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 *                 Syntax Arithmetic coding (SAC)
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 *                 Reference Picture Selection
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 *                 Independant Segment Decoding */
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/* /Fx */
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/* codec capabilities */
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#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< decoder can use draw_horiz_band callback 
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/**
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 * Codec uses get_buffer() for allocating buffers.
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 * direct rendering method 1
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 */
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#define CODEC_CAP_DR1             0x0002
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/* if 'parse_only' field is true, then avcodec_parse_frame() can be
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   used */
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#define CODEC_CAP_PARSE_ONLY      0x0004
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#define CODEC_CAP_TRUNCATED       0x0008
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/* codec can export data for HW decoding (XvMC) */
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#define CODEC_CAP_HWACCEL         0x0010
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/** 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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#define CODEC_CAP_DELAY           0x0020
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//the following defines might change, so dont expect compatibility if u use them
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#define MB_TYPE_INTRA4x4   0x0001
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#define MB_TYPE_INTRA16x16 0x0002 //FIXME h264 specific
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#define MB_TYPE_INTRA_PCM  0x0004 //FIXME h264 specific
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#define MB_TYPE_16x16      0x0008
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#define MB_TYPE_16x8       0x0010
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#define MB_TYPE_8x16       0x0020
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#define MB_TYPE_8x8        0x0040
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#define MB_TYPE_INTERLACED 0x0080
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#define MB_TYPE_DIRECT2     0x0100 //FIXME
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#define MB_TYPE_ACPRED     0x0200
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#define MB_TYPE_GMC        0x0400
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#define MB_TYPE_SKIP       0x0800
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#define MB_TYPE_P0L0       0x1000
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#define MB_TYPE_P1L0       0x2000
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#define MB_TYPE_P0L1       0x4000
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#define MB_TYPE_P1L1       0x8000
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#define MB_TYPE_L0         (MB_TYPE_P0L0 | MB_TYPE_P1L0)
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#define MB_TYPE_L1         (MB_TYPE_P0L1 | MB_TYPE_P1L1)
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#define MB_TYPE_L0L1       (MB_TYPE_L0   | MB_TYPE_L1)
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#define MB_TYPE_QUANT      0x00010000
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#define MB_TYPE_CBP        0x00020000
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//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...)
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/**
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 * Pan Scan area.
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 * this specifies the area which should be displayed. Note there may be multiple such areas for one frame
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 */
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typedef struct AVPanScan{
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    /**
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     * id.
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     * - encoding: set by user.
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     * - decoding: set by lavc
338
     */
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    int id;
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    /**
342
     * width and height in 1/16 pel
343
     * - encoding: set by user.
344
     * - decoding: set by lavc
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     */
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    int width;
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    int height;
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    /**
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     * position of the top left corner in 1/16 pel for up to 3 fields/frames.
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     * - encoding: set by user.
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     * - decoding: set by lavc
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     */
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    int16_t position[3][2];
355
}AVPanScan;
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#define FF_COMMON_FRAME \
358
    /**\
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     * pointer to the picture planes.\
360
     * this might be different from the first allocated byte\
361
     * - encoding: \
362
     * - decoding: \
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     */\
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    uint8_t *data[4];\
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    int linesize[4];\
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    /**\
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     * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
368
     * this isnt used by lavc unless the default get/release_buffer() is used\
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     * - encoding: \
370
     * - decoding: \
371
     */\
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    uint8_t *base[4];\
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    /**\
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     * 1 -> keyframe, 0-> not\
375
     * - encoding: set by lavc\
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     * - decoding: set by lavc\
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     */\
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    int key_frame;\
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\
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    /**\
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     * picture type of the frame, see ?_TYPE below.\
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     * - encoding: set by lavc for coded_picture (and set by user for input)\
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     * - decoding: set by lavc\
384
     */\
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    int pict_type;\
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\
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    /**\
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     * presentation timestamp in AV_TIME_BASE (=micro seconds currently) (time when frame should be shown to user)\
389
     * if AV_NOPTS_VALUE then the frame_rate will be used as reference\
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     * - encoding: MUST be set by user\
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     * - decoding: set by lavc\
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     */\
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    int64_t pts;\
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\
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    /**\
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     * picture number in bitstream order.\
397
     * - encoding: set by\
398
     * - decoding: set by lavc\
399
     */\
400
    int coded_picture_number;\
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    /**\
402
     * picture number in display order.\
403
     * - encoding: set by\
404
     * - decoding: set by lavc\
405
     */\
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    int display_picture_number;\
407
\
408
    /**\
409
     * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
410
     * - encoding: set by lavc for coded_picture (and set by user for input)\
411
     * - decoding: set by lavc\
412
     */\
413
    int quality; \
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\
415
    /**\
416
     * buffer age (1->was last buffer and dint change, 2->..., ...).\
417
     * set to INT_MAX if the buffer has not been used yet \
418
     * - encoding: unused\
419
     * - decoding: MUST be set by get_buffer()\
420
     */\
421
    int age;\
422
\
423
    /**\
424
     * is this picture used as reference\
425
     * - encoding: unused\
426
     * - decoding: set by lavc (before get_buffer() call))\
427
     */\
428
    int reference;\
429
\
430
    /**\
431
     * QP table\
432
     * - encoding: unused\
433
     * - decoding: set by lavc\
434
     */\
435
    int8_t *qscale_table;\
436
    /**\
437
     * QP store stride\
438
     * - encoding: unused\
439
     * - decoding: set by lavc\
440
     */\
441
    int qstride;\
442
\
443
    /**\
444
     * mbskip_table[mb]>=1 if MB didnt change\
445
     * stride= mb_width = (width+15)>>4\
446
     * - encoding: unused\
447
     * - decoding: set by lavc\
448
     */\
449
    uint8_t *mbskip_table;\
450
\
451
    /**\
452
     * Motion vector table\
453
     * - encoding: set by user\
454
     * - decoding: set by lavc\
455
     */\
456
    int16_t (*motion_val[2])[2];\
457
\
458
    /**\
459
     * Macroblock type table\
460
     * mb_type_base + mb_width + 2\
461
     * - encoding: set by user\
462
     * - decoding: set by lavc\
463
     */\
464
    uint32_t *mb_type;\
465
\
466
    /**\
467
     * Macroblock size: (0->16x16, 1->8x8, 2-> 4x4, 3-> 2x2)\
468
     * - encoding: unused\
469
     * - decoding: set by lavc\
470
     */\
471
    uint8_t motion_subsample_log2;\
472
\
473
    /**\
474
     * for some private data of the user\
475
     * - encoding: unused\
476
     * - decoding: set by user\
477
     */\
478
    void *opaque;\
479
\
480
    /**\
481
     * error\
482
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
483
     * - decoding: unused\
484
     */\
485
    uint64_t error[4];\
486
\
487
    /**\
488
     * type of the buffer (to keep track of who has to dealloc data[*])\
489
     * - encoding: set by the one who allocs it\
490
     * - decoding: set by the one who allocs it\
491
     * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
492
     */\
493
    int type;\
494
    \
495
    /**\
496
     * when decoding, this signal how much the picture must be delayed.\
497
     * extra_delay = repeat_pict / (2*fps)\
498
     * - encoding: unused\
499
     * - decoding: set by lavc\
500
     */\
501
    int repeat_pict;\
502
    \
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    /**\
504
     * \
505
     */\
506
    int qscale_type;\
507
    \
508
    /**\
509
     * The content of the picture is interlaced.\
510
     * - encoding: set by user\
511
     * - decoding: set by lavc (default 0)\
512
     */\
513
    int interlaced_frame;\
514
    \
515
    /**\
516
     * if the content is interlaced, is top field displayed first.\
517
     * - encoding: set by user\
518
     * - decoding: set by lavc\
519
     */\
520
    int top_field_first;\
521
    \
522
    /**\
523
     * Pan scan.\
524
     * - encoding: set by user\
525
     * - decoding: set by lavc\
526
     */\
527
    AVPanScan *pan_scan;\
528
    \
529
    /**\
530
     * tell user application that palette has changed from previous frame.\
531
     * - encoding: ??? (no palette-enabled encoder yet)\
532
     * - decoding: set by lavc (default 0)\
533
     */\
534
    int palette_has_changed;\
535
    \
536
    /**\
537
     * Codec suggestion on buffer type if != 0\
538
     * - encoding: unused\
539
     * - decoding: set by lavc (before get_buffer() call))\
540
     */\
541
    int buffer_hints;\
542
\
543
    /**\
544
     * DCT coeffitients\
545
     * - encoding: unused\
546
     * - decoding: set by lavc\
547
     */\
548
    short *dct_coeff;\
549
\
550
    /**\
551
     * Motion referece frame index\
552
     * - encoding: set by user\
553
     * - decoding: set by lavc\
554
     */\
555
    int8_t *ref_index[2];
556

    
557
#define FF_QSCALE_TYPE_MPEG1        0
558
#define FF_QSCALE_TYPE_MPEG2        1
559

    
560
#define FF_BUFFER_TYPE_INTERNAL 1
561
#define FF_BUFFER_TYPE_USER     2 ///< Direct rendering buffers (image is (de)allocated by user)
562
#define FF_BUFFER_TYPE_SHARED   4 ///< buffer from somewher else, dont dealloc image (data/base), all other tables are not shared
563
#define FF_BUFFER_TYPE_COPY     8 ///< just a (modified) copy of some other buffer, dont dealloc anything
564

    
565

    
566
#define FF_I_TYPE 1 // Intra
567
#define FF_P_TYPE 2 // Predicted
568
#define FF_B_TYPE 3 // Bi-dir predicted
569
#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
570
#define FF_SI_TYPE 5
571
#define FF_SP_TYPE 6
572

    
573
#define FF_BUFFER_HINTS_VALID    0x01 // Buffer hints value is meaningful (if 0 ignore)
574
#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
575
#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
576
#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
577

    
578
/**
579
 * Audio Video Frame.
580
 */
581
typedef struct AVFrame {
582
    FF_COMMON_FRAME
583
} AVFrame;
584

    
585
#define DEFAULT_FRAME_RATE_BASE 1001000
586

    
587
/**
588
 * Used by av_log
589
 */
590
typedef struct AVCLASS AVClass;
591
struct AVCLASS {
592
    const char* class_name;
593
    const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext
594
                                        or AVFormatContext, which begin with an AVClass.
595
                                        Needed because av_log is in libavcodec and has no visibility
596
                                        of AVIn/OutputFormat */
597
};
598

    
599
/**
600
 * main external api structure.
601
 */
602
typedef struct AVCodecContext {
603
    /**
604
     * Info on struct for av_log
605
     * - set by avcodec_alloc_context
606
     */
607
    AVClass *av_class;
608
    /**
609
     * the average bitrate.
610
     * - encoding: set by user. unused for constant quantizer encoding
611
     * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream 
612
     */
613
    int bit_rate;
614

    
615
    /**
616
     * number of bits the bitstream is allowed to diverge from the reference.
617
     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
618
     * - encoding: set by user. unused for constant quantizer encoding
619
     * - decoding: unused
620
     */
621
    int bit_rate_tolerance; 
622

    
623
    /**
624
     * CODEC_FLAG_*.
625
     * - encoding: set by user.
626
     * - decoding: set by user.
627
     */
628
    int flags;
629

    
630
    /**
631
     * some codecs needs additionnal format info. It is stored here
632
     * - encoding: set by user. 
633
     * - decoding: set by lavc. (FIXME is this ok?)
634
     */
635
    int sub_id;
636

    
637
    /**
638
     * motion estimation algorithm used for video coding.
639
     * - encoding: MUST be set by user.
640
     * - decoding: unused
641
     */
642
    int me_method;
643

    
644
    /**
645
     * some codecs need / can use extra-data like huffman tables.
646
     * mjpeg: huffman tables
647
     * rv10: additional flags
648
     * mpeg4: global headers (they can be in the bitstream or here)
649
     * - encoding: set/allocated/freed by lavc.
650
     * - decoding: set/allocated/freed by user.
651
     */
652
    void *extradata;
653
    int extradata_size;
654
    
655
    /* video only */
656
    /**
657
     * frames per sec multiplied by frame_rate_base.
658
     * for variable fps this is the precission, so if the timestamps 
659
     * can be specified in msec precssion then this is 1000*frame_rate_base
660
     * - encoding: MUST be set by user
661
     * - decoding: set by lavc. 0 or the frame_rate if available
662
     */
663
    int frame_rate;
664
    
665
    /**
666
     * width / height.
667
     * - encoding: MUST be set by user. 
668
     * - decoding: set by user if known, codec should override / dynamically change if needed
669
     */
670
    int width, height;
671
    
672
#define FF_ASPECT_EXTENDED 15
673

    
674
    /**
675
     * the number of pictures in a group of pitures, or 0 for intra_only.
676
     * - encoding: set by user.
677
     * - decoding: unused
678
     */
679
    int gop_size;
680

    
681
    /**
682
     * pixel format, see PIX_FMT_xxx.
683
     * - encoding: FIXME: used by ffmpeg to decide whether an pix_fmt
684
     *                    conversion is in order. This only works for
685
     *                    codecs with one supported pix_fmt, we should
686
     *                    do something for a generic case as well.
687
     * - decoding: set by lavc.
688
     */
689
    enum PixelFormat pix_fmt;
690
 
691
    /**
692
     * Frame rate emulation. If not zero lower layer (i.e. format handler) 
693
     * has to read frames at native frame rate.
694
     * - encoding: set by user.
695
     * - decoding: unused.
696
     */
697
    int rate_emu;
698
       
699
    /**
700
     * if non NULL, 'draw_horiz_band' is called by the libavcodec
701
     * decoder to draw an horizontal band. It improve cache usage. Not
702
     * all codecs can do that. You must check the codec capabilities
703
     * before
704
     * - encoding: unused
705
     * - decoding: set by user.
706
     * @param height the height of the slice
707
     * @param y the y position of the slice
708
     * @param type 1->top field, 2->bottom field, 3->frame
709
     * @param offset offset into the AVFrame.data from which the slice should be read
710
     */
711
    void (*draw_horiz_band)(struct AVCodecContext *s,
712
                            const AVFrame *src, int offset[4],
713
                            int y, int type, int height);
714

    
715
    /* audio only */
716
    int sample_rate; ///< samples per sec 
717
    int channels;
718
    int sample_fmt;  ///< sample format, currenly unused 
719

    
720
    /* the following data should not be initialized */
721
    int frame_size;     ///< in samples, initialized when calling 'init' 
722
    int frame_number;   ///< audio or video frame number 
723
    int real_pict_num;  ///< returns the real picture number of previous encoded frame 
724
    
725
    /**
726
     * number of frames the decoded output will be delayed relative to 
727
     * the encoded input.
728
     * - encoding: set by lavc.
729
     * - decoding: unused
730
     */
731
    int delay;
732
    
733
    /* - encoding parameters */
734
    float qcompress;  ///< amount of qscale change between easy & hard scenes (0.0-1.0)
735
    float qblur;      ///< amount of qscale smoothing over time (0.0-1.0) 
736
    
737
    /**
738
     * minimum quantizer.
739
     * - encoding: set by user.
740
     * - decoding: unused
741
     */
742
    int qmin;
743

    
744
    /**
745
     * maximum quantizer.
746
     * - encoding: set by user.
747
     * - decoding: unused
748
     */
749
    int qmax;
750

    
751
    /**
752
     * maximum quantizer difference etween frames.
753
     * - encoding: set by user.
754
     * - decoding: unused
755
     */
756
    int max_qdiff;
757

    
758
    /**
759
     * maximum number of b frames between non b frames.
760
     * note: the output will be delayed by max_b_frames+1 relative to the input
761
     * - encoding: set by user.
762
     * - decoding: unused
763
     */
764
    int max_b_frames;
765

    
766
    /**
767
     * qscale factor between ip and b frames.
768
     * - encoding: set by user.
769
     * - decoding: unused
770
     */
771
    float b_quant_factor;
772
    
773
    /** obsolete FIXME remove */
774
    int rc_strategy;
775
    int b_frame_strategy;
776

    
777
    /**
778
     * hurry up amount.
779
     * - encoding: unused
780
     * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
781
     */
782
    int hurry_up;
783
    
784
    struct AVCodec *codec;
785
    
786
    void *priv_data;
787

    
788
    /* unused, FIXME remove*/
789
    int rtp_mode;
790
    
791
    int rtp_payload_size;   /* The size of the RTP payload, the coder will  */
792
                            /* do it's best to deliver a chunk with size    */
793
                            /* below rtp_payload_size, the chunk will start */
794
                            /* with a start code on some codecs like H.263  */
795
                            /* This doesn't take account of any particular  */
796
                            /* headers inside the transmited RTP payload    */
797

    
798
    
799
    /* The RTP callcack: This function is called  */
800
    /* every time the encoder as a packet to send */
801
    /* Depends on the encoder if the data starts  */
802
    /* with a Start Code (it should) H.263 does   */
803
    void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int packet_number); 
804

    
805
    /* statistics, used for 2-pass encoding */
806
    int mv_bits;
807
    int header_bits;
808
    int i_tex_bits;
809
    int p_tex_bits;
810
    int i_count;
811
    int p_count;
812
    int skip_count;
813
    int misc_bits;
814
    
815
    /**
816
     * number of bits used for the previously encoded frame.
817
     * - encoding: set by lavc
818
     * - decoding: unused
819
     */
820
    int frame_bits;
821

    
822
    /**
823
     * private data of the user, can be used to carry app specific stuff.
824
     * - encoding: set by user
825
     * - decoding: set by user
826
     */
827
    void *opaque;
828

    
829
    char codec_name[32];
830
    enum CodecType codec_type; /* see CODEC_TYPE_xxx */
831
    enum CodecID codec_id; /* see CODEC_ID_xxx */
832
    
833
    /**
834
     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
835
     * this is used to workaround some encoder bugs
836
     * - encoding: set by user, if not then the default based on codec_id will be used
837
     * - decoding: set by user, will be converted to upper case by lavc during init
838
     */
839
    unsigned int codec_tag;
840
    
841
    /**
842
     * workaround bugs in encoders which sometimes cannot be detected automatically.
843
     * - encoding: unused
844
     * - decoding: set by user
845
     */
846
    int workaround_bugs;
847
#define FF_BUG_AUTODETECT       1  ///< autodetection
848
#define FF_BUG_OLD_MSMPEG4      2
849
#define FF_BUG_XVID_ILACE       4
850
#define FF_BUG_UMP4             8
851
#define FF_BUG_NO_PADDING       16
852
#define FF_BUG_AMV              32
853
#define FF_BUG_AC_VLC           0  ///< will be removed, libavcodec can now handle these non compliant files by default
854
#define FF_BUG_QPEL_CHROMA      64
855
#define FF_BUG_STD_QPEL         128
856
#define FF_BUG_QPEL_CHROMA2     256
857
#define FF_BUG_DIRECT_BLOCKSIZE 512
858
#define FF_BUG_EDGE             1024
859
#define FF_BUG_HPEL_CHROMA      2048
860
#define FF_BUG_DC_CLIP          4096
861
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
862
        
863
    /**
864
     * luma single coeff elimination threshold.
865
     * - encoding: set by user
866
     * - decoding: unused
867
     */
868
    int luma_elim_threshold;
869
    
870
    /**
871
     * chroma single coeff elimination threshold.
872
     * - encoding: set by user
873
     * - decoding: unused
874
     */
875
    int chroma_elim_threshold;
876
    
877
    /**
878
     * strictly follow the std (MPEG4, ...).
879
     * - encoding: set by user
880
     * - decoding: unused
881
     */
882
    int strict_std_compliance;
883
    
884
    /**
885
     * qscale offset between ip and b frames.
886
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
887
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
888
     * - encoding: set by user.
889
     * - decoding: unused
890
     */
891
    float b_quant_offset;
892
    
893
    /**
894
     * error resilience higher values will detect more errors but may missdetect
895
     * some more or less valid parts as errors.
896
     * - encoding: unused
897
     * - decoding: set by user
898
     */
899
    int error_resilience;
900
#define FF_ER_CAREFULL        1
901
#define FF_ER_COMPLIANT       2
902
#define FF_ER_AGGRESSIVE      3
903
#define FF_ER_VERY_AGGRESSIVE 4
904
    
905
    /**
906
     * called at the beginning of each frame to get a buffer for it.
907
     * if pic.reference is set then the frame will be read later by lavc
908
     * avcodec_align_dimensions() should be used to find the required width and
909
     * height, as they normally need to be rounded up to the next multiple of 16
910
     * - encoding: unused
911
     * - decoding: set by lavc, user can override
912
     */
913
    int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
914
    
915
    /**
916
     * called to release buffers which where allocated with get_buffer.
917
     * a released buffer can be reused in get_buffer()
918
     * pic.data[*] must be set to NULL
919
     * - encoding: unused
920
     * - decoding: set by lavc, user can override
921
     */
922
    void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
923

    
924
    /**
925
     * if 1 the stream has a 1 frame delay during decoding.
926
     * - encoding: set by lavc
927
     * - decoding: set by lavc
928
     */
929
    int has_b_frames;
930
    
931
    int block_align; ///< used by some WAV based audio codecs
932
    
933
    int parse_only; /* - decoding only: if true, only parsing is done
934
                       (function avcodec_parse_frame()). The frame
935
                       data is returned. Only MPEG codecs support this now. */
936
    
937
    /**
938
     * 0-> h263 quant 1-> mpeg quant.
939
     * - encoding: set by user.
940
     * - decoding: unused
941
     */
942
    int mpeg_quant;
943
    
944
    /**
945
     * pass1 encoding statistics output buffer.
946
     * - encoding: set by lavc
947
     * - decoding: unused
948
     */
949
    char *stats_out;
950
    
951
    /**
952
     * pass2 encoding statistics input buffer.
953
     * concatenated stuff from stats_out of pass1 should be placed here
954
     * - encoding: allocated/set/freed by user
955
     * - decoding: unused
956
     */
957
    char *stats_in;
958
    
959
    /**
960
     * ratecontrol qmin qmax limiting method.
961
     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
962
     * - encoding: set by user.
963
     * - decoding: unused
964
     */
965
    float rc_qsquish;
966

    
967
    float rc_qmod_amp;
968
    int rc_qmod_freq;
969
    
970
    /**
971
     * ratecontrol override, see RcOverride.
972
     * - encoding: allocated/set/freed by user.
973
     * - decoding: unused
974
     */
975
    RcOverride *rc_override;
976
    int rc_override_count;
977
    
978
    /**
979
     * rate control equation.
980
     * - encoding: set by user
981
     * - decoding: unused
982
     */
983
    char *rc_eq;
984
    
985
    /**
986
     * maximum bitrate.
987
     * - encoding: set by user.
988
     * - decoding: unused
989
     */
990
    int rc_max_rate;
991
    
992
    /**
993
     * minimum bitrate.
994
     * - encoding: set by user.
995
     * - decoding: unused
996
     */
997
    int rc_min_rate;
998
    
999
    /**
1000
     * decoder bitstream buffer size.
1001
     * - encoding: set by user.
1002
     * - decoding: unused
1003
     */
1004
    int rc_buffer_size;
1005
    float rc_buffer_aggressivity;
1006

    
1007
    /**
1008
     * qscale factor between p and i frames.
1009
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1010
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
1011
     * - encoding: set by user.
1012
     * - decoding: unused
1013
     */
1014
    float i_quant_factor;
1015
    
1016
    /**
1017
     * qscale offset between p and i frames.
1018
     * - encoding: set by user.
1019
     * - decoding: unused
1020
     */
1021
    float i_quant_offset;
1022
    
1023
    /**
1024
     * initial complexity for pass1 ratecontrol.
1025
     * - encoding: set by user.
1026
     * - decoding: unused
1027
     */
1028
    float rc_initial_cplx;
1029

    
1030
    /**
1031
     * dct algorithm, see FF_DCT_* below.
1032
     * - encoding: set by user
1033
     * - decoding: unused
1034
     */
1035
    int dct_algo;
1036
#define FF_DCT_AUTO    0
1037
#define FF_DCT_FASTINT 1
1038
#define FF_DCT_INT     2
1039
#define FF_DCT_MMX     3
1040
#define FF_DCT_MLIB    4
1041
#define FF_DCT_ALTIVEC 5
1042
#define FF_DCT_FAAN    6
1043
    
1044
    /**
1045
     * luminance masking (0-> disabled).
1046
     * - encoding: set by user
1047
     * - decoding: unused
1048
     */
1049
    float lumi_masking;
1050
    
1051
    /**
1052
     * temporary complexity masking (0-> disabled).
1053
     * - encoding: set by user
1054
     * - decoding: unused
1055
     */
1056
    float temporal_cplx_masking;
1057
    
1058
    /**
1059
     * spatial complexity masking (0-> disabled).
1060
     * - encoding: set by user
1061
     * - decoding: unused
1062
     */
1063
    float spatial_cplx_masking;
1064
    
1065
    /**
1066
     * p block masking (0-> disabled).
1067
     * - encoding: set by user
1068
     * - decoding: unused
1069
     */
1070
    float p_masking;
1071

    
1072
    /**
1073
     * darkness masking (0-> disabled).
1074
     * - encoding: set by user
1075
     * - decoding: unused
1076
     */
1077
    float dark_masking;
1078
    
1079
    
1080
    /* for binary compatibility */
1081
    int unused;
1082
    
1083
    /**
1084
     * idct algorithm, see FF_IDCT_* below.
1085
     * - encoding: set by user
1086
     * - decoding: set by user
1087
     */
1088
    int idct_algo;
1089
#define FF_IDCT_AUTO         0
1090
#define FF_IDCT_INT          1
1091
#define FF_IDCT_SIMPLE       2
1092
#define FF_IDCT_SIMPLEMMX    3
1093
#define FF_IDCT_LIBMPEG2MMX  4
1094
#define FF_IDCT_PS2          5
1095
#define FF_IDCT_MLIB         6
1096
#define FF_IDCT_ARM          7
1097
#define FF_IDCT_ALTIVEC      8
1098
#define FF_IDCT_SH4          9
1099
#define FF_IDCT_SIMPLEARM    10
1100

    
1101
    /**
1102
     * slice count.
1103
     * - encoding: set by lavc
1104
     * - decoding: set by user (or 0)
1105
     */
1106
    int slice_count;
1107
    /**
1108
     * slice offsets in the frame in bytes.
1109
     * - encoding: set/allocated by lavc
1110
     * - decoding: set/allocated by user (or NULL)
1111
     */
1112
    int *slice_offset;
1113

    
1114
    /**
1115
     * error concealment flags.
1116
     * - encoding: unused
1117
     * - decoding: set by user
1118
     */
1119
    int error_concealment;
1120
#define FF_EC_GUESS_MVS   1
1121
#define FF_EC_DEBLOCK     2
1122

    
1123
    /**
1124
     * dsp_mask could be add used to disable unwanted CPU features
1125
     * CPU features (i.e. MMX, SSE. ...)
1126
     *
1127
     * with FORCE flag you may instead enable given CPU features
1128
     * (Dangerous: usable in case of misdetection, improper usage however will
1129
     * result into program crash)
1130
     */
1131
    unsigned dsp_mask;
1132
#define FF_MM_FORCE        0x80000000 /* force usage of selected flags (OR) */
1133
    /* lower 16 bits - CPU features */
1134
#ifdef HAVE_MMX
1135
#define FF_MM_MMX        0x0001 /* standard MMX */
1136
#define FF_MM_3DNOW        0x0004 /* AMD 3DNOW */
1137
#define FF_MM_MMXEXT        0x0002 /* SSE integer functions or AMD MMX ext */
1138
#define FF_MM_SSE        0x0008 /* SSE functions */
1139
#define FF_MM_SSE2        0x0010 /* PIV SSE2 functions */
1140
#endif /* HAVE_MMX */
1141

    
1142
    /**
1143
     * bits per sample/pixel from the demuxer (needed for huffyuv).
1144
     * - encoding: set by lavc
1145
     * - decoding: set by user
1146
     */
1147
     int bits_per_sample;
1148
    
1149
    /**
1150
     * prediction method (needed for huffyuv).
1151
     * - encoding: set by user
1152
     * - decoding: unused
1153
     */
1154
     int prediction_method;
1155
#define FF_PRED_LEFT   0
1156
#define FF_PRED_PLANE  1
1157
#define FF_PRED_MEDIAN 2
1158
    
1159
    /**
1160
     * sample aspect ratio (0 if unknown).
1161
     * numerator and denominator must be relative prime and smaller then 256 for some video standards
1162
     * - encoding: set by user.
1163
     * - decoding: set by lavc.
1164
     */
1165
    AVRational sample_aspect_ratio;
1166

    
1167
    /**
1168
     * the picture in the bitstream.
1169
     * - encoding: set by lavc
1170
     * - decoding: set by lavc
1171
     */
1172
    AVFrame *coded_frame;
1173

    
1174
    /**
1175
     * debug.
1176
     * - encoding: set by user.
1177
     * - decoding: set by user.
1178
     */
1179
    int debug;
1180
#define FF_DEBUG_PICT_INFO 1
1181
#define FF_DEBUG_RC        2
1182
#define FF_DEBUG_BITSTREAM 4
1183
#define FF_DEBUG_MB_TYPE   8
1184
#define FF_DEBUG_QP        16
1185
#define FF_DEBUG_MV        32
1186
#define FF_DEBUG_DCT_COEFF 0x00000040
1187
#define FF_DEBUG_SKIP      0x00000080
1188
#define FF_DEBUG_STARTCODE 0x00000100
1189
#define FF_DEBUG_PTS       0x00000200
1190
#define FF_DEBUG_ER        0x00000400
1191
#define FF_DEBUG_MMCO      0x00000800
1192
#define FF_DEBUG_BUGS      0x00001000
1193
#define FF_DEBUG_VIS_QP    0x00002000
1194
#define FF_DEBUG_VIS_MB_TYPE 0x00004000
1195
    
1196
    /**
1197
     * debug.
1198
     * - encoding: set by user.
1199
     * - decoding: set by user.
1200
     */
1201
    int debug_mv;
1202
#define FF_DEBUG_VIS_MV_P_FOR  0x00000001 //visualize forward predicted MVs of P frames
1203
#define FF_DEBUG_VIS_MV_B_FOR  0x00000002 //visualize forward predicted MVs of B frames
1204
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1205

    
1206
    /**
1207
     * error.
1208
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1209
     * - decoding: unused
1210
     */
1211
    uint64_t error[4];
1212
    
1213
    /**
1214
     * minimum MB quantizer.
1215
     * - encoding: set by user.
1216
     * - decoding: unused
1217
     */
1218
    int mb_qmin;
1219

    
1220
    /**
1221
     * maximum MB quantizer.
1222
     * - encoding: set by user.
1223
     * - decoding: unused
1224
     */
1225
    int mb_qmax;
1226
    
1227
    /**
1228
     * motion estimation compare function.
1229
     * - encoding: set by user.
1230
     * - decoding: unused
1231
     */
1232
    int me_cmp;
1233
    /**
1234
     * subpixel motion estimation compare function.
1235
     * - encoding: set by user.
1236
     * - decoding: unused
1237
     */
1238
    int me_sub_cmp;
1239
    /**
1240
     * macroblock compare function (not supported yet).
1241
     * - encoding: set by user.
1242
     * - decoding: unused
1243
     */
1244
    int mb_cmp;
1245
    /**
1246
     * interlaced dct compare function
1247
     * - encoding: set by user.
1248
     * - decoding: unused
1249
     */
1250
    int ildct_cmp;
1251
#define FF_CMP_SAD  0
1252
#define FF_CMP_SSE  1
1253
#define FF_CMP_SATD 2
1254
#define FF_CMP_DCT  3
1255
#define FF_CMP_PSNR 4
1256
#define FF_CMP_BIT  5
1257
#define FF_CMP_RD   6
1258
#define FF_CMP_ZERO 7
1259
#define FF_CMP_VSAD 8
1260
#define FF_CMP_VSSE 9
1261
#define FF_CMP_NSSE 10
1262
#define FF_CMP_CHROMA 256
1263
    
1264
    /**
1265
     * ME diamond size & shape.
1266
     * - encoding: set by user.
1267
     * - decoding: unused
1268
     */
1269
    int dia_size;
1270

    
1271
    /**
1272
     * amount of previous MV predictors (2a+1 x 2a+1 square).
1273
     * - encoding: set by user.
1274
     * - decoding: unused
1275
     */
1276
    int last_predictor_count;
1277

    
1278
    /**
1279
     * pre pass for motion estimation.
1280
     * - encoding: set by user.
1281
     * - decoding: unused
1282
     */
1283
    int pre_me;
1284

    
1285
    /**
1286
     * motion estimation pre pass compare function.
1287
     * - encoding: set by user.
1288
     * - decoding: unused
1289
     */
1290
    int me_pre_cmp;
1291

    
1292
    /**
1293
     * ME pre pass diamond size & shape.
1294
     * - encoding: set by user.
1295
     * - decoding: unused
1296
     */
1297
    int pre_dia_size;
1298

    
1299
    /**
1300
     * subpel ME quality.
1301
     * - encoding: set by user.
1302
     * - decoding: unused
1303
     */
1304
    int me_subpel_quality;
1305

    
1306
    /**
1307
     * callback to negotiate the pixelFormat.
1308
     * @param fmt is the list of formats which are supported by the codec,
1309
     * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1310
     * the first is allways the native one
1311
     * @return the choosen format
1312
     * - encoding: unused
1313
     * - decoding: set by user, if not set then the native format will always be choosen
1314
     */
1315
    enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
1316

    
1317
    /**
1318
     * DTG active format information (additionnal aspect ratio
1319
     * information only used in DVB MPEG2 transport streams). 0 if
1320
     * not set.
1321
     * 
1322
     * - encoding: unused.
1323
     * - decoding: set by decoder 
1324
     */
1325
    int dtg_active_format;
1326
#define FF_DTG_AFD_SAME         8
1327
#define FF_DTG_AFD_4_3          9
1328
#define FF_DTG_AFD_16_9         10
1329
#define FF_DTG_AFD_14_9         11
1330
#define FF_DTG_AFD_4_3_SP_14_9  13
1331
#define FF_DTG_AFD_16_9_SP_14_9 14
1332
#define FF_DTG_AFD_SP_4_3       15
1333

    
1334
    /**
1335
     * Maximum motion estimation search range in subpel units.
1336
     * if 0 then no limit
1337
     * 
1338
     * - encoding: set by user.
1339
     * - decoding: unused.
1340
     */
1341
    int me_range;
1342

    
1343
    /**
1344
     * frame_rate_base.
1345
     * for variable fps this is 1
1346
     * - encoding: set by user.
1347
     * - decoding: set by lavc.
1348
     * @todo move this after frame_rate
1349
     */
1350

    
1351
    int frame_rate_base;
1352
    /**
1353
     * intra quantizer bias.
1354
     * - encoding: set by user.
1355
     * - decoding: unused
1356
     */
1357
    int intra_quant_bias;
1358
#define FF_DEFAULT_QUANT_BIAS 999999
1359
    
1360
    /**
1361
     * inter quantizer bias.
1362
     * - encoding: set by user.
1363
     * - decoding: unused
1364
     */
1365
    int inter_quant_bias;
1366

    
1367
    /**
1368
     * color table ID.
1369
     * - encoding: unused.
1370
     * - decoding: which clrtable should be used for 8bit RGB images
1371
     *             table have to be stored somewhere FIXME
1372
     */
1373
    int color_table_id;
1374
    
1375
    /**
1376
     * internal_buffer count. 
1377
     * Dont touch, used by lavc default_get_buffer()
1378
     */
1379
    int internal_buffer_count;
1380
    
1381
    /**
1382
     * internal_buffers. 
1383
     * Dont touch, used by lavc default_get_buffer()
1384
     */
1385
    void *internal_buffer;
1386

    
1387
#define FF_LAMBDA_SHIFT 7
1388
#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1389
#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1390
#define FF_LAMBDA_MAX (256*128-1)
1391

    
1392
#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
1393
    /**
1394
     * global quality for codecs which cannot change it per frame.
1395
     * this should be proportional to MPEG1/2/4 qscale.
1396
     * - encoding: set by user.
1397
     * - decoding: unused
1398
     */
1399
    int global_quality;
1400
    
1401
#define FF_CODER_TYPE_VLC   0
1402
#define FF_CODER_TYPE_AC    1
1403
    /**
1404
     * coder type
1405
     * - encoding: set by user.
1406
     * - decoding: unused
1407
     */
1408
    int coder_type;
1409

    
1410
    /**
1411
     * context model
1412
     * - encoding: set by user.
1413
     * - decoding: unused
1414
     */
1415
    int context_model;
1416
    
1417
    /**
1418
     * slice flags
1419
     * - encoding: unused
1420
     * - decoding: set by user.
1421
     */
1422
    int slice_flags;
1423
#define SLICE_FLAG_CODED_ORDER    0x0001 ///< draw_horiz_band() is called in coded order instead of display
1424
#define SLICE_FLAG_ALLOW_FIELD    0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1425
#define SLICE_FLAG_ALLOW_PLANE    0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1426

    
1427
    /**
1428
     * XVideo Motion Acceleration
1429
     * - encoding: forbidden
1430
     * - decoding: set by decoder
1431
     */
1432
    int xvmc_acceleration;
1433
    
1434
    /**
1435
     * macroblock decision mode
1436
     * - encoding: set by user.
1437
     * - decoding: unused
1438
     */
1439
    int mb_decision;
1440
#define FF_MB_DECISION_SIMPLE 0        ///< uses mb_cmp
1441
#define FF_MB_DECISION_BITS   1        ///< chooses the one which needs the fewest bits
1442
#define FF_MB_DECISION_RD     2        ///< rate distoration
1443

    
1444
    /**
1445
     * custom intra quantization matrix
1446
     * - encoding: set by user, can be NULL
1447
     * - decoding: set by lavc
1448
     */
1449
    uint16_t *intra_matrix;
1450

    
1451
    /**
1452
     * custom inter quantization matrix
1453
     * - encoding: set by user, can be NULL
1454
     * - decoding: set by lavc
1455
     */
1456
    uint16_t *inter_matrix;
1457
    
1458
    /**
1459
     * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1460
     * this is used to workaround some encoder bugs
1461
     * - encoding: unused
1462
     * - decoding: set by user, will be converted to upper case by lavc during init
1463
     */
1464
    unsigned int stream_codec_tag;
1465

    
1466
    /**
1467
     * scene change detection threshold.
1468
     * 0 is default, larger means fewer detected scene changes
1469
     * - encoding: set by user.
1470
     * - decoding: unused
1471
     */
1472
    int scenechange_threshold;
1473

    
1474
    /**
1475
     * minimum lagrange multipler
1476
     * - encoding: set by user.
1477
     * - decoding: unused
1478
     */
1479
    int lmin;
1480

    
1481
    /**
1482
     * maximum lagrange multipler
1483
     * - encoding: set by user.
1484
     * - decoding: unused
1485
     */
1486
    int lmax;
1487

    
1488
    /**
1489
     * Palette control structure
1490
     * - encoding: ??? (no palette-enabled encoder yet)
1491
     * - decoding: set by user.
1492
     */
1493
    struct AVPaletteControl *palctrl;
1494

    
1495
    /**
1496
     * noise reduction strength
1497
     * - encoding: set by user.
1498
     * - decoding: unused
1499
     */
1500
    int noise_reduction;
1501
    
1502
    /**
1503
     * called at the beginning of a frame to get cr buffer for it.
1504
     * buffer type (size, hints) must be the same. lavc won't check it.
1505
     * lavc will pass previous buffer in pic, function should return
1506
     * same buffer or new buffer with old frame "painted" into it.
1507
     * if pic.data[0] == NULL must behave like get_buffer().
1508
     * - encoding: unused
1509
     * - decoding: set by lavc, user can override
1510
     */
1511
    int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
1512

    
1513
    /**
1514
     * number of bits which should be loaded into the rc buffer before decoding starts
1515
     * - encoding: set by user.
1516
     * - decoding: unused
1517
     */
1518
    int rc_initial_buffer_occupancy;
1519

    
1520
    /**
1521
     *
1522
     * - encoding: set by user.
1523
     * - decoding: unused
1524
     */
1525
    int inter_threshold;
1526

    
1527
    /**
1528
     * CODEC_FLAG2_*.
1529
     * - encoding: set by user.
1530
     * - decoding: set by user.
1531
     */
1532
    int flags2;
1533

    
1534
    /**
1535
     * simulates errors in the bitstream to test error concealment.
1536
     * - encoding: set by user.
1537
     * - decoding: unused.
1538
     */
1539
    int error_rate;
1540
    
1541
    /**
1542
     * MP3 antialias algorithm, see FF_AA_* below.
1543
     * - encoding: unused
1544
     * - decoding: set by user
1545
     */
1546
    int antialias_algo;
1547
#define FF_AA_AUTO    0
1548
#define FF_AA_FASTINT 1 //not implemented yet
1549
#define FF_AA_INT     2
1550
#define FF_AA_FLOAT   3
1551
    /**
1552
     * Quantizer noise shaping.
1553
     * - encoding: set by user
1554
     * - decoding: unused
1555
     */
1556
    int quantizer_noise_shaping;
1557

    
1558
    /**
1559
     * Thread count.
1560
     * is used to decide how many independant tasks should be passed to execute()
1561
     * - encoding: set by user
1562
     * - decoding: set by user
1563
     */
1564
    int thread_count;
1565
    
1566
    /**
1567
     * the codec may call this to execute several independant things. it will return only after
1568
     * finishing all tasks, the user may replace this with some multithreaded implementation, the
1569
     * default implementation will execute the parts serially
1570
     * @param count the number of things to execute
1571
     * - encoding: set by lavc, user can override
1572
     * - decoding: set by lavc, user can override
1573
     */
1574
    int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
1575
    
1576
    /**
1577
     * Thread opaque.
1578
     * can be used by execute() to store some per AVCodecContext stuff.
1579
     * - encoding: set by execute()
1580
     * - decoding: set by execute()
1581
     */
1582
    void *thread_opaque;
1583

    
1584
    /**
1585
     * Motion estimation threshold. under which no motion estimation is 
1586
     * performed, but instead the user specified motion vectors are used
1587
     * 
1588
     * - encoding: set by user
1589
     * - decoding: unused
1590
     */
1591
     int me_threshold;
1592

    
1593
    /**
1594
     * Macroblock threshold. under which the user specified macroblock types will be used
1595
     * - encoding: set by user
1596
     * - decoding: unused
1597
     */
1598
     int mb_threshold;
1599

    
1600
    /**
1601
     * precision of the intra dc coefficient - 8.
1602
     * - encoding: set by user
1603
     * - decoding: unused
1604
     */
1605
     int intra_dc_precision;
1606

    
1607
    /**
1608
     * noise vs. sse weight for the nsse comparsion function.
1609
     * - encoding: set by user
1610
     * - decoding: unused
1611
     */
1612
     int nsse_weight;
1613

    
1614
    /**
1615
     * number of macroblock rows at the top which are skiped.
1616
     * - encoding: unused
1617
     * - decoding: set by user
1618
     */
1619
     int skip_top;
1620

    
1621
    /**
1622
     * number of macroblock rows at the bottom which are skiped.
1623
     * - encoding: unused
1624
     * - decoding: set by user
1625
     */
1626
     int skip_bottom;
1627

    
1628
    /**
1629
     * profile
1630
     * - encoding: set by user
1631
     * - decoding: set by lavc
1632
     */
1633
     int profile;
1634
#define FF_PROFILE_UNKNOWN -99
1635

    
1636
    /**
1637
     * level
1638
     * - encoding: set by user
1639
     * - decoding: set by lavc
1640
     */
1641
     int level;
1642
#define FF_LEVEL_UNKNOWN -99
1643
} AVCodecContext;
1644

    
1645

    
1646
/**
1647
 * AVOption.
1648
 */
1649
typedef struct AVOption {
1650
    /** options' name */
1651
    const char *name; /* if name is NULL, it indicates a link to next */
1652
    /** short English text help or const struct AVOption* subpointer */
1653
    const char *help; //        const struct AVOption* sub;
1654
    /** offset to context structure where the parsed value should be stored */
1655
    int offset;
1656
    /** options' type */
1657
    int type;
1658
#define FF_OPT_TYPE_BOOL 1      ///< boolean - true,1,on  (or simply presence)
1659
#define FF_OPT_TYPE_DOUBLE 2    ///< double
1660
#define FF_OPT_TYPE_INT 3       ///< integer
1661
#define FF_OPT_TYPE_STRING 4    ///< string (finished with \0)
1662
#define FF_OPT_TYPE_MASK 0x1f        ///< mask for types - upper bits are various flags
1663
//#define FF_OPT_TYPE_EXPERT 0x20 // flag for expert option
1664
#define FF_OPT_TYPE_FLAG (FF_OPT_TYPE_BOOL | 0x40)
1665
#define FF_OPT_TYPE_RCOVERRIDE (FF_OPT_TYPE_STRING | 0x80)
1666
    /** min value  (min == max   ->  no limits) */
1667
    double min;
1668
    /** maximum value for double/int */
1669
    double max;
1670
    /** default boo [0,1]l/double/int value */
1671
    double defval;
1672
    /**
1673
     * default string value (with optional semicolon delimited extra option-list
1674
     * i.e.   option1;option2;option3
1675
     * defval might select other then first argument as default
1676
     */
1677
    const char *defstr;
1678
#define FF_OPT_MAX_DEPTH 10
1679
} AVOption;
1680

    
1681
/**
1682
 * Parse option(s) and sets fields in passed structure
1683
 * @param strct        structure where the parsed results will be written
1684
 * @param list  list with AVOptions
1685
 * @param opts        string with options for parsing
1686
 */
1687
int avoption_parse(void* strct, const AVOption* list, const char* opts);
1688

    
1689

    
1690
/**
1691
 * AVCodec.
1692
 */
1693
typedef struct AVCodec {
1694
    const char *name;
1695
    enum CodecType type;
1696
    int id;
1697
    int priv_data_size;
1698
    int (*init)(AVCodecContext *);
1699
    int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
1700
    int (*close)(AVCodecContext *);
1701
    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
1702
                  uint8_t *buf, int buf_size);
1703
    int capabilities;
1704
    const AVOption *options;
1705
    struct AVCodec *next;
1706
    void (*flush)(AVCodecContext *);
1707
    const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
1708
    const enum PixelFormat *pix_fmts;       ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
1709
} AVCodec;
1710

    
1711
/**
1712
 * four components are given, that's all.
1713
 * the last component is alpha
1714
 */
1715
typedef struct AVPicture {
1716
    uint8_t *data[4];
1717
    int linesize[4];       ///< number of bytes per line
1718
} AVPicture;
1719

    
1720
/**
1721
 * AVPaletteControl
1722
 * This structure defines a method for communicating palette changes
1723
 * between and demuxer and a decoder.
1724
 */
1725
#define AVPALETTE_SIZE 1024
1726
#define AVPALETTE_COUNT 256
1727
typedef struct AVPaletteControl {
1728

    
1729
    /* demuxer sets this to 1 to indicate the palette has changed;
1730
     * decoder resets to 0 */
1731
    int palette_changed;
1732

    
1733
    /* 4-byte ARGB palette entries, stored in native byte order; note that
1734
     * the individual palette components should be on a 8-bit scale; if
1735
     * the palette data comes from a IBM VGA native format, the component
1736
     * data is probably 6 bits in size and needs to be scaled */
1737
    unsigned int palette[AVPALETTE_COUNT];
1738

    
1739
} AVPaletteControl;
1740

    
1741
extern AVCodec ac3_encoder;
1742
extern AVCodec mp2_encoder;
1743
extern AVCodec mp3lame_encoder;
1744
extern AVCodec oggvorbis_encoder;
1745
extern AVCodec faac_encoder;
1746
extern AVCodec xvid_encoder;
1747
extern AVCodec mpeg1video_encoder;
1748
extern AVCodec mpeg2video_encoder;
1749
extern AVCodec h263_encoder;
1750
extern AVCodec h263p_encoder;
1751
extern AVCodec flv_encoder;
1752
extern AVCodec rv10_encoder;
1753
extern AVCodec rv20_encoder;
1754
extern AVCodec dvvideo_encoder;
1755
extern AVCodec mjpeg_encoder;
1756
extern AVCodec ljpeg_encoder;
1757
extern AVCodec mpeg4_encoder;
1758
extern AVCodec msmpeg4v1_encoder;
1759
extern AVCodec msmpeg4v2_encoder;
1760
extern AVCodec msmpeg4v3_encoder;
1761
extern AVCodec wmv1_encoder;
1762
extern AVCodec wmv2_encoder;
1763
extern AVCodec huffyuv_encoder;
1764
extern AVCodec h264_encoder;
1765
extern AVCodec asv1_encoder;
1766
extern AVCodec asv2_encoder;
1767
extern AVCodec vcr1_encoder;
1768
extern AVCodec ffv1_encoder;
1769
extern AVCodec snow_encoder;
1770
extern AVCodec mdec_encoder;
1771
extern AVCodec zlib_encoder;
1772
extern AVCodec svq1_encoder;
1773

    
1774
extern AVCodec h263_decoder;
1775
extern AVCodec h261_decoder;
1776
extern AVCodec mpeg4_decoder;
1777
extern AVCodec msmpeg4v1_decoder;
1778
extern AVCodec msmpeg4v2_decoder;
1779
extern AVCodec msmpeg4v3_decoder;
1780
extern AVCodec wmv1_decoder;
1781
extern AVCodec wmv2_decoder;
1782
extern AVCodec mpeg1video_decoder;
1783
extern AVCodec mpeg2video_decoder;
1784
extern AVCodec mpegvideo_decoder;
1785
extern AVCodec mpeg_xvmc_decoder;
1786
extern AVCodec h263i_decoder;
1787
extern AVCodec flv_decoder;
1788
extern AVCodec rv10_decoder;
1789
extern AVCodec rv20_decoder;
1790
extern AVCodec svq1_decoder;
1791
extern AVCodec svq3_decoder;
1792
extern AVCodec dvvideo_decoder;
1793
extern AVCodec wmav1_decoder;
1794
extern AVCodec wmav2_decoder;
1795
extern AVCodec mjpeg_decoder;
1796
extern AVCodec mjpegb_decoder;
1797
extern AVCodec sp5x_decoder;
1798
extern AVCodec mp2_decoder;
1799
extern AVCodec mp3_decoder;
1800
extern AVCodec mace3_decoder;
1801
extern AVCodec mace6_decoder;
1802
extern AVCodec huffyuv_decoder;
1803
extern AVCodec oggvorbis_decoder;
1804
extern AVCodec cyuv_decoder;
1805
extern AVCodec h264_decoder;
1806
extern AVCodec indeo3_decoder;
1807
extern AVCodec vp3_decoder;
1808
extern AVCodec theora_decoder;
1809
extern AVCodec amr_nb_decoder;
1810
extern AVCodec amr_nb_encoder;
1811
extern AVCodec amr_wb_encoder;
1812
extern AVCodec amr_wb_decoder;
1813
extern AVCodec aac_decoder;
1814
extern AVCodec mpeg4aac_decoder;
1815
extern AVCodec asv1_decoder;
1816
extern AVCodec asv2_decoder;
1817
extern AVCodec vcr1_decoder;
1818
extern AVCodec cljr_decoder;
1819
extern AVCodec ffv1_decoder;
1820
extern AVCodec snow_decoder;
1821
extern AVCodec fourxm_decoder;
1822
extern AVCodec mdec_decoder;
1823
extern AVCodec roq_decoder;
1824
extern AVCodec interplay_video_decoder;
1825
extern AVCodec xan_wc3_decoder;
1826
extern AVCodec rpza_decoder;
1827
extern AVCodec cinepak_decoder;
1828
extern AVCodec msrle_decoder;
1829
extern AVCodec msvideo1_decoder;
1830
extern AVCodec vqa_decoder;
1831
extern AVCodec idcin_decoder;
1832
extern AVCodec eightbps_decoder;
1833
extern AVCodec smc_decoder;
1834
extern AVCodec flic_decoder;
1835
extern AVCodec vmdvideo_decoder;
1836
extern AVCodec vmdaudio_decoder;
1837
extern AVCodec truemotion1_decoder;
1838
extern AVCodec mszh_decoder;
1839
extern AVCodec zlib_decoder;
1840
extern AVCodec ra_144_decoder;
1841
extern AVCodec ra_288_decoder;
1842
extern AVCodec roq_dpcm_decoder;
1843
extern AVCodec interplay_dpcm_decoder;
1844
extern AVCodec xan_dpcm_decoder;
1845
extern AVCodec qtrle_decoder;
1846
extern AVCodec flac_decoder;
1847

    
1848
/* pcm codecs */
1849
#define PCM_CODEC(id, name) \
1850
extern AVCodec name ## _decoder; \
1851
extern AVCodec name ## _encoder
1852

    
1853
PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
1854
PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
1855
PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
1856
PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
1857
PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
1858
PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
1859
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
1860
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
1861

    
1862
/* adpcm codecs */
1863

    
1864
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
1865
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
1866
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
1867
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
1868
PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
1869
PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
1870
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
1871
PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
1872
PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
1873
PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
1874
PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
1875
PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
1876

    
1877
#undef PCM_CODEC
1878

    
1879
/* dummy raw video codec */
1880
extern AVCodec rawvideo_encoder;
1881
extern AVCodec rawvideo_decoder;
1882

    
1883
/* the following codecs use external GPL libs */
1884
extern AVCodec ac3_decoder;
1885
extern AVCodec dts_decoder;
1886

    
1887
/* resample.c */
1888

    
1889
struct ReSampleContext;
1890
struct AVResampleContext;
1891

    
1892
typedef struct ReSampleContext ReSampleContext;
1893

    
1894
ReSampleContext *audio_resample_init(int output_channels, int input_channels, 
1895
                                     int output_rate, int input_rate);
1896
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
1897
void audio_resample_close(ReSampleContext *s);
1898

    
1899
struct AVResampleContext *av_resample_init(int out_rate, int in_rate);
1900
int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
1901
void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
1902
void av_resample_close(struct AVResampleContext *c);
1903

    
1904
/* YUV420 format is assumed ! */
1905

    
1906
struct ImgReSampleContext;
1907

    
1908
typedef struct ImgReSampleContext ImgReSampleContext;
1909

    
1910
ImgReSampleContext *img_resample_init(int output_width, int output_height,
1911
                                      int input_width, int input_height);
1912

    
1913
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
1914
                                      int iwidth, int iheight,
1915
                                      int topBand, int bottomBand,
1916
                                      int leftBand, int rightBand,
1917
                                      int padtop, int padbottom,
1918
                                      int padleft, int padright);
1919

    
1920

    
1921
void img_resample(ImgReSampleContext *s, 
1922
                  AVPicture *output, const AVPicture *input);
1923

    
1924
void img_resample_close(ImgReSampleContext *s);
1925

    
1926
/**
1927
 * Allocate memory for a picture.  Call avpicture_free to free it.
1928
 *
1929
 * @param picture the picture to be filled in.
1930
 * @param pix_fmt the format of the picture.
1931
 * @param width the width of the picture.
1932
 * @param height the height of the picture.
1933
 * @return 0 if successful, -1 if not.
1934
 */
1935
int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
1936

    
1937
/* Free a picture previously allocated by avpicture_alloc. */
1938
void avpicture_free(AVPicture *picture);
1939

    
1940
int avpicture_fill(AVPicture *picture, uint8_t *ptr,
1941
                   int pix_fmt, int width, int height);
1942
int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
1943
                     unsigned char *dest, int dest_size);
1944
int avpicture_get_size(int pix_fmt, int width, int height);
1945
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
1946
const char *avcodec_get_pix_fmt_name(int pix_fmt);
1947
enum PixelFormat avcodec_get_pix_fmt(const char* name);
1948

    
1949
#define FF_LOSS_RESOLUTION  0x0001 /* loss due to resolution change */
1950
#define FF_LOSS_DEPTH       0x0002 /* loss due to color depth change */
1951
#define FF_LOSS_COLORSPACE  0x0004 /* loss due to color space conversion */
1952
#define FF_LOSS_ALPHA       0x0008 /* loss of alpha bits */
1953
#define FF_LOSS_COLORQUANT  0x0010 /* loss due to color quantization */
1954
#define FF_LOSS_CHROMA      0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
1955

    
1956
int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
1957
                             int has_alpha);
1958
int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
1959
                              int has_alpha, int *loss_ptr);
1960

    
1961
#define FF_ALPHA_TRANSP       0x0001 /* image has some totally transparent pixels */
1962
#define FF_ALPHA_SEMI_TRANSP  0x0002 /* image has some transparent pixels */
1963
int img_get_alpha_info(const AVPicture *src,
1964
                       int pix_fmt, int width, int height);
1965

    
1966
/* convert among pixel formats */
1967
int img_convert(AVPicture *dst, int dst_pix_fmt,
1968
                const AVPicture *src, int pix_fmt, 
1969
                int width, int height);
1970

    
1971
/* deinterlace a picture */
1972
int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
1973
                          int pix_fmt, int width, int height);
1974

    
1975
/* external high level API */
1976

    
1977
extern AVCodec *first_avcodec;
1978

    
1979
/* returns LIBAVCODEC_VERSION_INT constant */
1980
unsigned avcodec_version(void);
1981
/* returns LIBAVCODEC_BUILD constant */
1982
unsigned avcodec_build(void);
1983
void avcodec_init(void);
1984

    
1985
void register_avcodec(AVCodec *format);
1986
AVCodec *avcodec_find_encoder(enum CodecID id);
1987
AVCodec *avcodec_find_encoder_by_name(const char *name);
1988
AVCodec *avcodec_find_decoder(enum CodecID id);
1989
AVCodec *avcodec_find_decoder_by_name(const char *name);
1990
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
1991

    
1992
void avcodec_get_context_defaults(AVCodecContext *s);
1993
AVCodecContext *avcodec_alloc_context(void);
1994
void avcodec_get_frame_defaults(AVFrame *pic);
1995
AVFrame *avcodec_alloc_frame(void);
1996

    
1997
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
1998
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
1999
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
2000
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
2001
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
2002

    
2003
int avcodec_thread_init(AVCodecContext *s, int thread_count);
2004
void avcodec_thread_free(AVCodecContext *s);
2005
int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2006
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2007
//FIXME func typedef
2008

    
2009
/**
2010
 * opens / inits the AVCodecContext.
2011
 * not thread save!
2012
 */
2013
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
2014

    
2015
int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples, 
2016
                         int *frame_size_ptr,
2017
                         uint8_t *buf, int buf_size);
2018
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture, 
2019
                         int *got_picture_ptr,
2020
                         uint8_t *buf, int buf_size);
2021
int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata, 
2022
                        int *data_size_ptr,
2023
                        uint8_t *buf, int buf_size);
2024
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
2025
                         const short *samples);
2026
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
2027
                         const AVFrame *pict);
2028

    
2029
int avcodec_close(AVCodecContext *avctx);
2030

    
2031
void avcodec_register_all(void);
2032

    
2033
void avcodec_flush_buffers(AVCodecContext *avctx);
2034

    
2035
/* misc usefull functions */
2036

    
2037
/**
2038
 * returns a single letter to describe the picture type
2039
 */
2040
char av_get_pict_type_char(int pict_type);
2041

    
2042
/**
2043
 * reduce a fraction.
2044
 * this is usefull for framerate calculations
2045
 * @param max the maximum allowed for dst_nom & dst_den
2046
 * @return 1 if exact, 0 otherwise
2047
 */
2048
int av_reduce(int *dst_nom, int *dst_den, int64_t nom, int64_t den, int64_t max);
2049

    
2050
/**
2051
 * rescale a 64bit integer.
2052
 * a simple a*b/c isnt possible as it can overflow
2053
 */
2054
int64_t av_rescale(int64_t a, int64_t b, int64_t c);
2055

    
2056

    
2057
/**
2058
 * Interface for 0.5.0 version
2059
 *
2060
 * do not even think about it's usage for this moment
2061
 */
2062

    
2063
typedef struct {
2064
    /// compressed size used from given memory buffer
2065
    int size;
2066
    /// I/P/B frame type
2067
    int frame_type;
2068
} avc_enc_result_t;
2069

    
2070
/**
2071
 * Commands
2072
 * order can't be changed - once it was defined
2073
 */
2074
typedef enum {
2075
    // general commands
2076
    AVC_OPEN_BY_NAME = 0xACA000,
2077
    AVC_OPEN_BY_CODEC_ID,
2078
    AVC_OPEN_BY_FOURCC,
2079
    AVC_CLOSE,
2080

    
2081
    AVC_FLUSH,
2082
    // pin - struct { uint8_t* src, uint_t src_size }
2083
    // pout - struct { AVPicture* img, consumed_bytes,
2084
    AVC_DECODE,
2085
    // pin - struct { AVPicture* img, uint8_t* dest, uint_t dest_size }
2086
    // pout - uint_t used_from_dest_size
2087
    AVC_ENCODE, 
2088

    
2089
    // query/get video commands
2090
    AVC_GET_VERSION = 0xACB000,
2091
    AVC_GET_WIDTH,
2092
    AVC_GET_HEIGHT,
2093
    AVC_GET_DELAY,
2094
    AVC_GET_QUANT_TABLE,
2095
    // ...
2096

    
2097
    // query/get audio commands
2098
    AVC_GET_FRAME_SIZE = 0xABC000,
2099

    
2100
    // maybe define some simple structure which
2101
    // might be passed to the user - but they can't
2102
    // contain any codec specific parts and these
2103
    // calls are usualy necessary only few times
2104

    
2105
    // set video commands
2106
    AVC_SET_WIDTH = 0xACD000,
2107
    AVC_SET_HEIGHT,
2108

    
2109
    // set video encoding commands
2110
    AVC_SET_FRAME_RATE = 0xACD800,
2111
    AVC_SET_QUALITY,
2112
    AVC_SET_HURRY_UP,
2113

    
2114
    // set audio commands
2115
    AVC_SET_SAMPLE_RATE = 0xACE000,
2116
    AVC_SET_CHANNELS,
2117

    
2118
} avc_cmd_t;
2119

    
2120
/**
2121
 * \param handle  allocated private structure by libavcodec
2122
 *                for initialization pass NULL - will be returned pout
2123
 *                user is supposed to know nothing about its structure
2124
 * \param cmd     type of operation to be performed
2125
 * \param pint    input parameter
2126
 * \param pout    output parameter
2127
 *
2128
 * \returns  command status - eventually for query command it might return
2129
 * integer resulting value
2130
 */
2131
int avcodec(void* handle, avc_cmd_t cmd, void* pin, void* pout);
2132

    
2133
/* frame parsing */
2134
typedef struct AVCodecParserContext {
2135
    void *priv_data;
2136
    struct AVCodecParser *parser;
2137
    int64_t frame_offset; /* offset of the current frame */
2138
    int64_t cur_offset; /* current offset 
2139
                           (incremented by each av_parser_parse()) */
2140
    int64_t last_frame_offset; /* offset of the last frame */
2141
    /* video info */
2142
    int pict_type; /* XXX: put it back in AVCodecContext */
2143
    int repeat_pict; /* XXX: put it back in AVCodecContext */
2144
    int64_t pts;     /* pts of the current frame */
2145
    int64_t dts;     /* dts of the current frame */
2146

    
2147
    /* private data */
2148
    int64_t last_pts;
2149
    int64_t last_dts;
2150
    int fetch_timestamp;
2151

    
2152
#define AV_PARSER_PTS_NB 4
2153
    int cur_frame_start_index;
2154
    int64_t cur_frame_offset[AV_PARSER_PTS_NB];
2155
    int64_t cur_frame_pts[AV_PARSER_PTS_NB];
2156
    int64_t cur_frame_dts[AV_PARSER_PTS_NB];
2157
} AVCodecParserContext;
2158

    
2159
typedef struct AVCodecParser {
2160
    int codec_ids[3]; /* several codec IDs are permitted */
2161
    int priv_data_size;
2162
    int (*parser_init)(AVCodecParserContext *s);
2163
    int (*parser_parse)(AVCodecParserContext *s, 
2164
                        AVCodecContext *avctx,
2165
                        uint8_t **poutbuf, int *poutbuf_size, 
2166
                        const uint8_t *buf, int buf_size);
2167
    void (*parser_close)(AVCodecParserContext *s);
2168
    struct AVCodecParser *next;
2169
} AVCodecParser;
2170

    
2171
extern AVCodecParser *av_first_parser;
2172

    
2173
void av_register_codec_parser(AVCodecParser *parser);
2174
AVCodecParserContext *av_parser_init(int codec_id);
2175
int av_parser_parse(AVCodecParserContext *s, 
2176
                    AVCodecContext *avctx,
2177
                    uint8_t **poutbuf, int *poutbuf_size, 
2178
                    const uint8_t *buf, int buf_size,
2179
                    int64_t pts, int64_t dts);
2180
void av_parser_close(AVCodecParserContext *s);
2181

    
2182
extern AVCodecParser mpegvideo_parser;
2183
extern AVCodecParser mpeg4video_parser;
2184
extern AVCodecParser h261_parser;
2185
extern AVCodecParser h263_parser;
2186
extern AVCodecParser h264_parser;
2187
extern AVCodecParser mpegaudio_parser;
2188
extern AVCodecParser ac3_parser;
2189

    
2190
/* memory */
2191
void *av_malloc(unsigned int size);
2192
void *av_mallocz(unsigned int size);
2193
void *av_realloc(void *ptr, unsigned int size);
2194
void av_free(void *ptr);
2195
char *av_strdup(const char *s);
2196
void av_freep(void *ptr);
2197
void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
2198
/* for static data only */
2199
/* call av_free_static to release all staticaly allocated tables */
2200
void av_free_static(void);
2201
void *av_mallocz_static(unsigned int size);
2202

    
2203
/* add by bero : in adx.c */
2204
int is_adx(const unsigned char *buf,size_t bufsize);
2205

    
2206
void img_copy(AVPicture *dst, const AVPicture *src,
2207
              int pix_fmt, int width, int height);
2208

    
2209
/* av_log API */
2210

    
2211
#include <stdarg.h>
2212

    
2213
#define AV_LOG_QUIET -1
2214
#define AV_LOG_ERROR 0
2215
#define AV_LOG_INFO 1
2216
#define AV_LOG_DEBUG 2
2217

    
2218
#ifdef __GNUC__
2219
extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
2220
#else
2221
extern void av_log(void*, int level, const char *fmt, ...);
2222
#endif
2223

    
2224
extern void av_vlog(void*, int level, const char *fmt, va_list);
2225
extern int av_log_get_level(void);
2226
extern void av_log_set_level(int);
2227
extern void av_log_set_callback(void (*)(void*, int, const char*, va_list));
2228

    
2229
/* endian macros */
2230
#if !defined(BE_16) || !defined(BE_32) || !defined(LE_16) || !defined(LE_32)
2231
#define BE_16(x)  ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
2232
#define BE_32(x)  ((((uint8_t*)(x))[0] << 24) | \
2233
                   (((uint8_t*)(x))[1] << 16) | \
2234
                   (((uint8_t*)(x))[2] << 8) | \
2235
                    ((uint8_t*)(x))[3])
2236
#define LE_16(x)  ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
2237
#define LE_32(x)  ((((uint8_t*)(x))[3] << 24) | \
2238
                   (((uint8_t*)(x))[2] << 16) | \
2239
                   (((uint8_t*)(x))[1] << 8) | \
2240
                    ((uint8_t*)(x))[0])
2241
#endif
2242

    
2243
#ifdef __cplusplus
2244
}
2245
#endif
2246

    
2247
#endif /* AVCODEC_H */