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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       4725
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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_SONIC,
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    CODEC_ID_SONIC_LS,
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    CODEC_ID_QTRLE,
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    CODEC_ID_SNOW,
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    CODEC_ID_TSCC,
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    CODEC_ID_ULTI,
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    CODEC_ID_QDRAW,
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    /* 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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    CODEC_ID_ADPCM_CT,
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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_SOL_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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enum AVRounding {
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    AV_ROUND_ZERO     = 0, ///< round toward zero
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    AV_ROUND_INF      = 1, ///< round away from zero
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    AV_ROUND_DOWN     = 2, ///< round toward -infinity
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    AV_ROUND_UP       = 3, ///< round toward +infinity
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    AV_ROUND_NEAR_INF = 5, ///< round to nearest and halfway cases away from zero
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};
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typedef struct RcOverride{
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    int start_frame;
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    int end_frame;
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    int qscale; // if this is 0 then quality_factor will be used instead
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    float quality_factor;
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} RcOverride;
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/* only for ME compatiblity with old apps */
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extern int motion_estimation_method;
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#define FF_MAX_B_FRAMES 8
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/* encoding support
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   these flags can be passed in AVCodecContext.flags before initing 
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   Note: note not everything is supported yet 
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*/
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#define CODEC_FLAG_QSCALE 0x0002  ///< use fixed qscale 
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#define CODEC_FLAG_4MV    0x0004  ///< 4 MV per MB allowed / Advanced prediction for H263
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#define CODEC_FLAG_QPEL   0x0010  ///< use qpel MC 
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#define CODEC_FLAG_GMC    0x0020  ///< use GMC 
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#define CODEC_FLAG_MV0    0x0040  ///< always try a MB with MV=<0,0> 
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#define CODEC_FLAG_PART   0x0080  ///< use data partitioning 
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/* parent program gurantees that the input for b-frame containing streams is not written to 
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   for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
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#define CODEC_FLAG_INPUT_PRESERVED 0x0100
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#define CODEC_FLAG_PASS1 0x0200   ///< use internal 2pass ratecontrol in first  pass mode 
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#define CODEC_FLAG_PASS2 0x0400   ///< use internal 2pass ratecontrol in second pass mode 
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#define CODEC_FLAG_EXTERN_HUFF 0x1000 ///< use external huffman table (for mjpeg) 
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#define CODEC_FLAG_GRAY  0x2000   ///< only decode/encode grayscale 
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#define CODEC_FLAG_EMU_EDGE 0x4000///< dont draw edges 
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#define CODEC_FLAG_PSNR           0x8000 ///< error[?] variables will be set during encoding 
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#define CODEC_FLAG_TRUNCATED  0x00010000 /** input bitstream might be truncated at a random location instead 
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                                            of only at frame boundaries */
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#define CODEC_FLAG_NORMALIZE_AQP  0x00020000 ///< normalize adaptive quantization 
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#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< use interlaced dct 
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#define CODEC_FLAG_LOW_DELAY      0x00080000 ///< force low delay
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#define CODEC_FLAG_ALT_SCAN       0x00100000 ///< use alternate scan 
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#define CODEC_FLAG_TRELLIS_QUANT  0x00200000 ///< use trellis quantization 
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#define CODEC_FLAG_GLOBAL_HEADER  0x00400000 ///< place global headers in extradata instead of every keyframe 
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#define CODEC_FLAG_BITEXACT       0x00800000 ///< use only bitexact stuff (except (i)dct) 
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/* Fx : Flag for h263+ extra options */
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#define CODEC_FLAG_H263P_AIC      0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction (remove this)
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#define CODEC_FLAG_AC_PRED        0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction
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#define CODEC_FLAG_H263P_UMV      0x02000000 ///< Unlimited motion vector  
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#define CODEC_FLAG_CBP_RD         0x04000000 ///< use rate distortion optimization for cbp
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#define CODEC_FLAG_QP_RD          0x08000000 ///< use rate distortion optimization for qp selectioon
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#define CODEC_FLAG_H263P_AIV      0x00000008 ///< H263 Alternative inter vlc
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#define CODEC_FLAG_OBMC           0x00000001 ///< OBMC
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#define CODEC_FLAG_LOOP_FILTER    0x00000800 ///< loop filter
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#define CODEC_FLAG_H263P_SLICE_STRUCT 0x10000000
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#define CODEC_FLAG_INTERLACED_ME  0x20000000 ///< interlaced motion estimation
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#define CODEC_FLAG_SVCD_SCAN_OFFSET 0x40000000 ///< will reserve space for SVCD scan offset user data
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#define CODEC_FLAG_CLOSED_GOP     0x80000000
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#define CODEC_FLAG2_FAST          0x00000001 ///< allow non spec compliant speedup tricks
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/* 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.
348
 * 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
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     */
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    int id;
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    /**
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     * width and height in 1/16 pel
360
     * - encoding: set by user.
361
     * - 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.
368
     * - encoding: set by user.
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     * - decoding: set by lavc
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     */
371
    int16_t position[3][2];
372
}AVPanScan;
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#define FF_COMMON_FRAME \
375
    /**\
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     * pointer to the picture planes.\
377
     * this might be different from the first allocated byte\
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     * - encoding: \
379
     * - decoding: \
380
     */\
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    uint8_t *data[4];\
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    int linesize[4];\
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    /**\
384
     * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
385
     * this isnt used by lavc unless the default get/release_buffer() is used\
386
     * - encoding: \
387
     * - decoding: \
388
     */\
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    uint8_t *base[4];\
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    /**\
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     * 1 -> keyframe, 0-> not\
392
     * - encoding: set by lavc\
393
     * - decoding: set by lavc\
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     */\
395
    int key_frame;\
396
\
397
    /**\
398
     * picture type of the frame, see ?_TYPE below.\
399
     * - encoding: set by lavc for coded_picture (and set by user for input)\
400
     * - decoding: set by lavc\
401
     */\
402
    int pict_type;\
403
\
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    /**\
405
     * presentation timestamp in AV_TIME_BASE (=micro seconds currently) (time when frame should be shown to user)\
406
     * if AV_NOPTS_VALUE then the frame_rate will be used as reference\
407
     * - encoding: MUST be set by user\
408
     * - decoding: set by lavc\
409
     */\
410
    int64_t pts;\
411
\
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    /**\
413
     * picture number in bitstream order.\
414
     * - encoding: set by\
415
     * - decoding: set by lavc\
416
     */\
417
    int coded_picture_number;\
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    /**\
419
     * picture number in display order.\
420
     * - encoding: set by\
421
     * - decoding: set by lavc\
422
     */\
423
    int display_picture_number;\
424
\
425
    /**\
426
     * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
427
     * - encoding: set by lavc for coded_picture (and set by user for input)\
428
     * - decoding: set by lavc\
429
     */\
430
    int quality; \
431
\
432
    /**\
433
     * buffer age (1->was last buffer and dint change, 2->..., ...).\
434
     * set to INT_MAX if the buffer has not been used yet \
435
     * - encoding: unused\
436
     * - decoding: MUST be set by get_buffer()\
437
     */\
438
    int age;\
439
\
440
    /**\
441
     * is this picture used as reference\
442
     * - encoding: unused\
443
     * - decoding: set by lavc (before get_buffer() call))\
444
     */\
445
    int reference;\
446
\
447
    /**\
448
     * QP table\
449
     * - encoding: unused\
450
     * - decoding: set by lavc\
451
     */\
452
    int8_t *qscale_table;\
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    /**\
454
     * QP store stride\
455
     * - encoding: unused\
456
     * - decoding: set by lavc\
457
     */\
458
    int qstride;\
459
\
460
    /**\
461
     * mbskip_table[mb]>=1 if MB didnt change\
462
     * stride= mb_width = (width+15)>>4\
463
     * - encoding: unused\
464
     * - decoding: set by lavc\
465
     */\
466
    uint8_t *mbskip_table;\
467
\
468
    /**\
469
     * Motion vector table\
470
     * - encoding: set by user\
471
     * - decoding: set by lavc\
472
     */\
473
    int16_t (*motion_val[2])[2];\
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\
475
    /**\
476
     * Macroblock type table\
477
     * mb_type_base + mb_width + 2\
478
     * - encoding: set by user\
479
     * - decoding: set by lavc\
480
     */\
481
    uint32_t *mb_type;\
482
\
483
    /**\
484
     * Macroblock size: (0->16x16, 1->8x8, 2-> 4x4, 3-> 2x2)\
485
     * - encoding: unused\
486
     * - decoding: set by lavc\
487
     */\
488
    uint8_t motion_subsample_log2;\
489
\
490
    /**\
491
     * for some private data of the user\
492
     * - encoding: unused\
493
     * - decoding: set by user\
494
     */\
495
    void *opaque;\
496
\
497
    /**\
498
     * error\
499
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
500
     * - decoding: unused\
501
     */\
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    uint64_t error[4];\
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\
504
    /**\
505
     * type of the buffer (to keep track of who has to dealloc data[*])\
506
     * - encoding: set by the one who allocs it\
507
     * - decoding: set by the one who allocs it\
508
     * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
509
     */\
510
    int type;\
511
    \
512
    /**\
513
     * when decoding, this signal how much the picture must be delayed.\
514
     * extra_delay = repeat_pict / (2*fps)\
515
     * - encoding: unused\
516
     * - decoding: set by lavc\
517
     */\
518
    int repeat_pict;\
519
    \
520
    /**\
521
     * \
522
     */\
523
    int qscale_type;\
524
    \
525
    /**\
526
     * The content of the picture is interlaced.\
527
     * - encoding: set by user\
528
     * - decoding: set by lavc (default 0)\
529
     */\
530
    int interlaced_frame;\
531
    \
532
    /**\
533
     * if the content is interlaced, is top field displayed first.\
534
     * - encoding: set by user\
535
     * - decoding: set by lavc\
536
     */\
537
    int top_field_first;\
538
    \
539
    /**\
540
     * Pan scan.\
541
     * - encoding: set by user\
542
     * - decoding: set by lavc\
543
     */\
544
    AVPanScan *pan_scan;\
545
    \
546
    /**\
547
     * tell user application that palette has changed from previous frame.\
548
     * - encoding: ??? (no palette-enabled encoder yet)\
549
     * - decoding: set by lavc (default 0)\
550
     */\
551
    int palette_has_changed;\
552
    \
553
    /**\
554
     * Codec suggestion on buffer type if != 0\
555
     * - encoding: unused\
556
     * - decoding: set by lavc (before get_buffer() call))\
557
     */\
558
    int buffer_hints;\
559
\
560
    /**\
561
     * DCT coeffitients\
562
     * - encoding: unused\
563
     * - decoding: set by lavc\
564
     */\
565
    short *dct_coeff;\
566
\
567
    /**\
568
     * Motion referece frame index\
569
     * - encoding: set by user\
570
     * - decoding: set by lavc\
571
     */\
572
    int8_t *ref_index[2];
573

    
574
#define FF_QSCALE_TYPE_MPEG1        0
575
#define FF_QSCALE_TYPE_MPEG2        1
576

    
577
#define FF_BUFFER_TYPE_INTERNAL 1
578
#define FF_BUFFER_TYPE_USER     2 ///< Direct rendering buffers (image is (de)allocated by user)
579
#define FF_BUFFER_TYPE_SHARED   4 ///< buffer from somewher else, dont dealloc image (data/base), all other tables are not shared
580
#define FF_BUFFER_TYPE_COPY     8 ///< just a (modified) copy of some other buffer, dont dealloc anything
581

    
582

    
583
#define FF_I_TYPE 1 // Intra
584
#define FF_P_TYPE 2 // Predicted
585
#define FF_B_TYPE 3 // Bi-dir predicted
586
#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
587
#define FF_SI_TYPE 5
588
#define FF_SP_TYPE 6
589

    
590
#define FF_BUFFER_HINTS_VALID    0x01 // Buffer hints value is meaningful (if 0 ignore)
591
#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
592
#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
593
#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
594

    
595
/**
596
 * Audio Video Frame.
597
 */
598
typedef struct AVFrame {
599
    FF_COMMON_FRAME
600
} AVFrame;
601

    
602
#define DEFAULT_FRAME_RATE_BASE 1001000
603

    
604
/**
605
 * Used by av_log
606
 */
607
typedef struct AVCLASS AVClass;
608
struct AVCLASS {
609
    const char* class_name;
610
    const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext
611
                                        or AVFormatContext, which begin with an AVClass.
612
                                        Needed because av_log is in libavcodec and has no visibility
613
                                        of AVIn/OutputFormat */
614
};
615

    
616
/**
617
 * main external api structure.
618
 */
619
typedef struct AVCodecContext {
620
    /**
621
     * Info on struct for av_log
622
     * - set by avcodec_alloc_context
623
     */
624
    AVClass *av_class;
625
    /**
626
     * the average bitrate.
627
     * - encoding: set by user. unused for constant quantizer encoding
628
     * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream 
629
     */
630
    int bit_rate;
631

    
632
    /**
633
     * number of bits the bitstream is allowed to diverge from the reference.
634
     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
635
     * - encoding: set by user. unused for constant quantizer encoding
636
     * - decoding: unused
637
     */
638
    int bit_rate_tolerance; 
639

    
640
    /**
641
     * CODEC_FLAG_*.
642
     * - encoding: set by user.
643
     * - decoding: set by user.
644
     */
645
    int flags;
646

    
647
    /**
648
     * some codecs needs additionnal format info. It is stored here
649
     * - encoding: set by user. 
650
     * - decoding: set by lavc. (FIXME is this ok?)
651
     */
652
    int sub_id;
653

    
654
    /**
655
     * motion estimation algorithm used for video coding.
656
     * - encoding: MUST be set by user.
657
     * - decoding: unused
658
     */
659
    int me_method;
660

    
661
    /**
662
     * some codecs need / can use extra-data like huffman tables.
663
     * mjpeg: huffman tables
664
     * rv10: additional flags
665
     * mpeg4: global headers (they can be in the bitstream or here)
666
     * - encoding: set/allocated/freed by lavc.
667
     * - decoding: set/allocated/freed by user.
668
     */
669
    void *extradata;
670
    int extradata_size;
671
    
672
    /* video only */
673
    /**
674
     * frames per sec multiplied by frame_rate_base.
675
     * for variable fps this is the precission, so if the timestamps 
676
     * can be specified in msec precssion then this is 1000*frame_rate_base
677
     * - encoding: MUST be set by user
678
     * - decoding: set by lavc. 0 or the frame_rate if available
679
     */
680
    int frame_rate;
681
    
682
    /**
683
     * picture width / height.
684
     * - encoding: MUST be set by user. 
685
     * - decoding: set by lavc.
686
     * Note, for compatibility its possible to set this instead of 
687
     * coded_width/height before decoding
688
     */
689
    int width, height;
690
    
691
#define FF_ASPECT_EXTENDED 15
692

    
693
    /**
694
     * the number of pictures in a group of pitures, or 0 for intra_only.
695
     * - encoding: set by user.
696
     * - decoding: unused
697
     */
698
    int gop_size;
699

    
700
    /**
701
     * pixel format, see PIX_FMT_xxx.
702
     * - encoding: FIXME: used by ffmpeg to decide whether an pix_fmt
703
     *                    conversion is in order. This only works for
704
     *                    codecs with one supported pix_fmt, we should
705
     *                    do something for a generic case as well.
706
     * - decoding: set by lavc.
707
     */
708
    enum PixelFormat pix_fmt;
709
 
710
    /**
711
     * Frame rate emulation. If not zero lower layer (i.e. format handler) 
712
     * has to read frames at native frame rate.
713
     * - encoding: set by user.
714
     * - decoding: unused.
715
     */
716
    int rate_emu;
717
       
718
    /**
719
     * if non NULL, 'draw_horiz_band' is called by the libavcodec
720
     * decoder to draw an horizontal band. It improve cache usage. Not
721
     * all codecs can do that. You must check the codec capabilities
722
     * before
723
     * - encoding: unused
724
     * - decoding: set by user.
725
     * @param height the height of the slice
726
     * @param y the y position of the slice
727
     * @param type 1->top field, 2->bottom field, 3->frame
728
     * @param offset offset into the AVFrame.data from which the slice should be read
729
     */
730
    void (*draw_horiz_band)(struct AVCodecContext *s,
731
                            const AVFrame *src, int offset[4],
732
                            int y, int type, int height);
733

    
734
    /* audio only */
735
    int sample_rate; ///< samples per sec 
736
    int channels;
737
    int sample_fmt;  ///< sample format, currenly unused 
738

    
739
    /* the following data should not be initialized */
740
    int frame_size;     ///< in samples, initialized when calling 'init' 
741
    int frame_number;   ///< audio or video frame number 
742
    int real_pict_num;  ///< returns the real picture number of previous encoded frame 
743
    
744
    /**
745
     * number of frames the decoded output will be delayed relative to 
746
     * the encoded input.
747
     * - encoding: set by lavc.
748
     * - decoding: unused
749
     */
750
    int delay;
751
    
752
    /* - encoding parameters */
753
    float qcompress;  ///< amount of qscale change between easy & hard scenes (0.0-1.0)
754
    float qblur;      ///< amount of qscale smoothing over time (0.0-1.0) 
755
    
756
    /**
757
     * minimum quantizer.
758
     * - encoding: set by user.
759
     * - decoding: unused
760
     */
761
    int qmin;
762

    
763
    /**
764
     * maximum quantizer.
765
     * - encoding: set by user.
766
     * - decoding: unused
767
     */
768
    int qmax;
769

    
770
    /**
771
     * maximum quantizer difference etween frames.
772
     * - encoding: set by user.
773
     * - decoding: unused
774
     */
775
    int max_qdiff;
776

    
777
    /**
778
     * maximum number of b frames between non b frames.
779
     * note: the output will be delayed by max_b_frames+1 relative to the input
780
     * - encoding: set by user.
781
     * - decoding: unused
782
     */
783
    int max_b_frames;
784

    
785
    /**
786
     * qscale factor between ip and b frames.
787
     * - encoding: set by user.
788
     * - decoding: unused
789
     */
790
    float b_quant_factor;
791
    
792
    /** obsolete FIXME remove */
793
    int rc_strategy;
794
    int b_frame_strategy;
795

    
796
    /**
797
     * hurry up amount.
798
     * - encoding: unused
799
     * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
800
     */
801
    int hurry_up;
802
    
803
    struct AVCodec *codec;
804
    
805
    void *priv_data;
806

    
807
    /* unused, FIXME remove*/
808
    int rtp_mode;
809
    
810
    int rtp_payload_size;   /* The size of the RTP payload, the coder will  */
811
                            /* do it's best to deliver a chunk with size    */
812
                            /* below rtp_payload_size, the chunk will start */
813
                            /* with a start code on some codecs like H.263  */
814
                            /* This doesn't take account of any particular  */
815
                            /* headers inside the transmited RTP payload    */
816

    
817
    
818
    /* The RTP callcack: This function is called  */
819
    /* every time the encoder as a packet to send */
820
    /* Depends on the encoder if the data starts  */
821
    /* with a Start Code (it should) H.263 does   */
822
    void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int packet_number); 
823

    
824
    /* statistics, used for 2-pass encoding */
825
    int mv_bits;
826
    int header_bits;
827
    int i_tex_bits;
828
    int p_tex_bits;
829
    int i_count;
830
    int p_count;
831
    int skip_count;
832
    int misc_bits;
833
    
834
    /**
835
     * number of bits used for the previously encoded frame.
836
     * - encoding: set by lavc
837
     * - decoding: unused
838
     */
839
    int frame_bits;
840

    
841
    /**
842
     * private data of the user, can be used to carry app specific stuff.
843
     * - encoding: set by user
844
     * - decoding: set by user
845
     */
846
    void *opaque;
847

    
848
    char codec_name[32];
849
    enum CodecType codec_type; /* see CODEC_TYPE_xxx */
850
    enum CodecID codec_id; /* see CODEC_ID_xxx */
851
    
852
    /**
853
     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
854
     * this is used to workaround some encoder bugs
855
     * - encoding: set by user, if not then the default based on codec_id will be used
856
     * - decoding: set by user, will be converted to upper case by lavc during init
857
     */
858
    unsigned int codec_tag;
859
    
860
    /**
861
     * workaround bugs in encoders which sometimes cannot be detected automatically.
862
     * - encoding: unused
863
     * - decoding: set by user
864
     */
865
    int workaround_bugs;
866
#define FF_BUG_AUTODETECT       1  ///< autodetection
867
#define FF_BUG_OLD_MSMPEG4      2
868
#define FF_BUG_XVID_ILACE       4
869
#define FF_BUG_UMP4             8
870
#define FF_BUG_NO_PADDING       16
871
#define FF_BUG_AMV              32
872
#define FF_BUG_AC_VLC           0  ///< will be removed, libavcodec can now handle these non compliant files by default
873
#define FF_BUG_QPEL_CHROMA      64
874
#define FF_BUG_STD_QPEL         128
875
#define FF_BUG_QPEL_CHROMA2     256
876
#define FF_BUG_DIRECT_BLOCKSIZE 512
877
#define FF_BUG_EDGE             1024
878
#define FF_BUG_HPEL_CHROMA      2048
879
#define FF_BUG_DC_CLIP          4096
880
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
881
        
882
    /**
883
     * luma single coeff elimination threshold.
884
     * - encoding: set by user
885
     * - decoding: unused
886
     */
887
    int luma_elim_threshold;
888
    
889
    /**
890
     * chroma single coeff elimination threshold.
891
     * - encoding: set by user
892
     * - decoding: unused
893
     */
894
    int chroma_elim_threshold;
895
    
896
    /**
897
     * strictly follow the std (MPEG4, ...).
898
     * - encoding: set by user
899
     * - decoding: unused
900
     */
901
    int strict_std_compliance;
902
    
903
    /**
904
     * qscale offset between ip and b frames.
905
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
906
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
907
     * - encoding: set by user.
908
     * - decoding: unused
909
     */
910
    float b_quant_offset;
911
    
912
    /**
913
     * error resilience higher values will detect more errors but may missdetect
914
     * some more or less valid parts as errors.
915
     * - encoding: unused
916
     * - decoding: set by user
917
     */
918
    int error_resilience;
919
#define FF_ER_CAREFULL        1
920
#define FF_ER_COMPLIANT       2
921
#define FF_ER_AGGRESSIVE      3
922
#define FF_ER_VERY_AGGRESSIVE 4
923
    
924
    /**
925
     * called at the beginning of each frame to get a buffer for it.
926
     * if pic.reference is set then the frame will be read later by lavc
927
     * avcodec_align_dimensions() should be used to find the required width and
928
     * height, as they normally need to be rounded up to the next multiple of 16
929
     * - encoding: unused
930
     * - decoding: set by lavc, user can override
931
     */
932
    int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
933
    
934
    /**
935
     * called to release buffers which where allocated with get_buffer.
936
     * a released buffer can be reused in get_buffer()
937
     * pic.data[*] must be set to NULL
938
     * - encoding: unused
939
     * - decoding: set by lavc, user can override
940
     */
941
    void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
942

    
943
    /**
944
     * if 1 the stream has a 1 frame delay during decoding.
945
     * - encoding: set by lavc
946
     * - decoding: set by lavc
947
     */
948
    int has_b_frames;
949
    
950
    int block_align; ///< used by some WAV based audio codecs
951
    
952
    int parse_only; /* - decoding only: if true, only parsing is done
953
                       (function avcodec_parse_frame()). The frame
954
                       data is returned. Only MPEG codecs support this now. */
955
    
956
    /**
957
     * 0-> h263 quant 1-> mpeg quant.
958
     * - encoding: set by user.
959
     * - decoding: unused
960
     */
961
    int mpeg_quant;
962
    
963
    /**
964
     * pass1 encoding statistics output buffer.
965
     * - encoding: set by lavc
966
     * - decoding: unused
967
     */
968
    char *stats_out;
969
    
970
    /**
971
     * pass2 encoding statistics input buffer.
972
     * concatenated stuff from stats_out of pass1 should be placed here
973
     * - encoding: allocated/set/freed by user
974
     * - decoding: unused
975
     */
976
    char *stats_in;
977
    
978
    /**
979
     * ratecontrol qmin qmax limiting method.
980
     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
981
     * - encoding: set by user.
982
     * - decoding: unused
983
     */
984
    float rc_qsquish;
985

    
986
    float rc_qmod_amp;
987
    int rc_qmod_freq;
988
    
989
    /**
990
     * ratecontrol override, see RcOverride.
991
     * - encoding: allocated/set/freed by user.
992
     * - decoding: unused
993
     */
994
    RcOverride *rc_override;
995
    int rc_override_count;
996
    
997
    /**
998
     * rate control equation.
999
     * - encoding: set by user
1000
     * - decoding: unused
1001
     */
1002
    char *rc_eq;
1003
    
1004
    /**
1005
     * maximum bitrate.
1006
     * - encoding: set by user.
1007
     * - decoding: unused
1008
     */
1009
    int rc_max_rate;
1010
    
1011
    /**
1012
     * minimum bitrate.
1013
     * - encoding: set by user.
1014
     * - decoding: unused
1015
     */
1016
    int rc_min_rate;
1017
    
1018
    /**
1019
     * decoder bitstream buffer size.
1020
     * - encoding: set by user.
1021
     * - decoding: unused
1022
     */
1023
    int rc_buffer_size;
1024
    float rc_buffer_aggressivity;
1025

    
1026
    /**
1027
     * qscale factor between p and i frames.
1028
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1029
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
1030
     * - encoding: set by user.
1031
     * - decoding: unused
1032
     */
1033
    float i_quant_factor;
1034
    
1035
    /**
1036
     * qscale offset between p and i frames.
1037
     * - encoding: set by user.
1038
     * - decoding: unused
1039
     */
1040
    float i_quant_offset;
1041
    
1042
    /**
1043
     * initial complexity for pass1 ratecontrol.
1044
     * - encoding: set by user.
1045
     * - decoding: unused
1046
     */
1047
    float rc_initial_cplx;
1048

    
1049
    /**
1050
     * dct algorithm, see FF_DCT_* below.
1051
     * - encoding: set by user
1052
     * - decoding: unused
1053
     */
1054
    int dct_algo;
1055
#define FF_DCT_AUTO    0
1056
#define FF_DCT_FASTINT 1
1057
#define FF_DCT_INT     2
1058
#define FF_DCT_MMX     3
1059
#define FF_DCT_MLIB    4
1060
#define FF_DCT_ALTIVEC 5
1061
#define FF_DCT_FAAN    6
1062
    
1063
    /**
1064
     * luminance masking (0-> disabled).
1065
     * - encoding: set by user
1066
     * - decoding: unused
1067
     */
1068
    float lumi_masking;
1069
    
1070
    /**
1071
     * temporary complexity masking (0-> disabled).
1072
     * - encoding: set by user
1073
     * - decoding: unused
1074
     */
1075
    float temporal_cplx_masking;
1076
    
1077
    /**
1078
     * spatial complexity masking (0-> disabled).
1079
     * - encoding: set by user
1080
     * - decoding: unused
1081
     */
1082
    float spatial_cplx_masking;
1083
    
1084
    /**
1085
     * p block masking (0-> disabled).
1086
     * - encoding: set by user
1087
     * - decoding: unused
1088
     */
1089
    float p_masking;
1090

    
1091
    /**
1092
     * darkness masking (0-> disabled).
1093
     * - encoding: set by user
1094
     * - decoding: unused
1095
     */
1096
    float dark_masking;
1097
    
1098
    
1099
    /* for binary compatibility */
1100
    int unused;
1101
    
1102
    /**
1103
     * idct algorithm, see FF_IDCT_* below.
1104
     * - encoding: set by user
1105
     * - decoding: set by user
1106
     */
1107
    int idct_algo;
1108
#define FF_IDCT_AUTO         0
1109
#define FF_IDCT_INT          1
1110
#define FF_IDCT_SIMPLE       2
1111
#define FF_IDCT_SIMPLEMMX    3
1112
#define FF_IDCT_LIBMPEG2MMX  4
1113
#define FF_IDCT_PS2          5
1114
#define FF_IDCT_MLIB         6
1115
#define FF_IDCT_ARM          7
1116
#define FF_IDCT_ALTIVEC      8
1117
#define FF_IDCT_SH4          9
1118
#define FF_IDCT_SIMPLEARM    10
1119
#define FF_IDCT_H264         11
1120

    
1121
    /**
1122
     * slice count.
1123
     * - encoding: set by lavc
1124
     * - decoding: set by user (or 0)
1125
     */
1126
    int slice_count;
1127
    /**
1128
     * slice offsets in the frame in bytes.
1129
     * - encoding: set/allocated by lavc
1130
     * - decoding: set/allocated by user (or NULL)
1131
     */
1132
    int *slice_offset;
1133

    
1134
    /**
1135
     * error concealment flags.
1136
     * - encoding: unused
1137
     * - decoding: set by user
1138
     */
1139
    int error_concealment;
1140
#define FF_EC_GUESS_MVS   1
1141
#define FF_EC_DEBLOCK     2
1142

    
1143
    /**
1144
     * dsp_mask could be add used to disable unwanted CPU features
1145
     * CPU features (i.e. MMX, SSE. ...)
1146
     *
1147
     * with FORCE flag you may instead enable given CPU features
1148
     * (Dangerous: usable in case of misdetection, improper usage however will
1149
     * result into program crash)
1150
     */
1151
    unsigned dsp_mask;
1152
#define FF_MM_FORCE        0x80000000 /* force usage of selected flags (OR) */
1153
    /* lower 16 bits - CPU features */
1154
#ifdef HAVE_MMX
1155
#define FF_MM_MMX        0x0001 /* standard MMX */
1156
#define FF_MM_3DNOW        0x0004 /* AMD 3DNOW */
1157
#define FF_MM_MMXEXT        0x0002 /* SSE integer functions or AMD MMX ext */
1158
#define FF_MM_SSE        0x0008 /* SSE functions */
1159
#define FF_MM_SSE2        0x0010 /* PIV SSE2 functions */
1160
#endif /* HAVE_MMX */
1161

    
1162
    /**
1163
     * bits per sample/pixel from the demuxer (needed for huffyuv).
1164
     * - encoding: set by lavc
1165
     * - decoding: set by user
1166
     */
1167
     int bits_per_sample;
1168
    
1169
    /**
1170
     * prediction method (needed for huffyuv).
1171
     * - encoding: set by user
1172
     * - decoding: unused
1173
     */
1174
     int prediction_method;
1175
#define FF_PRED_LEFT   0
1176
#define FF_PRED_PLANE  1
1177
#define FF_PRED_MEDIAN 2
1178
    
1179
    /**
1180
     * sample aspect ratio (0 if unknown).
1181
     * numerator and denominator must be relative prime and smaller then 256 for some video standards
1182
     * - encoding: set by user.
1183
     * - decoding: set by lavc.
1184
     */
1185
    AVRational sample_aspect_ratio;
1186

    
1187
    /**
1188
     * the picture in the bitstream.
1189
     * - encoding: set by lavc
1190
     * - decoding: set by lavc
1191
     */
1192
    AVFrame *coded_frame;
1193

    
1194
    /**
1195
     * debug.
1196
     * - encoding: set by user.
1197
     * - decoding: set by user.
1198
     */
1199
    int debug;
1200
#define FF_DEBUG_PICT_INFO 1
1201
#define FF_DEBUG_RC        2
1202
#define FF_DEBUG_BITSTREAM 4
1203
#define FF_DEBUG_MB_TYPE   8
1204
#define FF_DEBUG_QP        16
1205
#define FF_DEBUG_MV        32
1206
#define FF_DEBUG_DCT_COEFF 0x00000040
1207
#define FF_DEBUG_SKIP      0x00000080
1208
#define FF_DEBUG_STARTCODE 0x00000100
1209
#define FF_DEBUG_PTS       0x00000200
1210
#define FF_DEBUG_ER        0x00000400
1211
#define FF_DEBUG_MMCO      0x00000800
1212
#define FF_DEBUG_BUGS      0x00001000
1213
#define FF_DEBUG_VIS_QP    0x00002000
1214
#define FF_DEBUG_VIS_MB_TYPE 0x00004000
1215
    
1216
    /**
1217
     * debug.
1218
     * - encoding: set by user.
1219
     * - decoding: set by user.
1220
     */
1221
    int debug_mv;
1222
#define FF_DEBUG_VIS_MV_P_FOR  0x00000001 //visualize forward predicted MVs of P frames
1223
#define FF_DEBUG_VIS_MV_B_FOR  0x00000002 //visualize forward predicted MVs of B frames
1224
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1225

    
1226
    /**
1227
     * error.
1228
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1229
     * - decoding: unused
1230
     */
1231
    uint64_t error[4];
1232
    
1233
    /**
1234
     * minimum MB quantizer.
1235
     * - encoding: set by user.
1236
     * - decoding: unused
1237
     */
1238
    int mb_qmin;
1239

    
1240
    /**
1241
     * maximum MB quantizer.
1242
     * - encoding: set by user.
1243
     * - decoding: unused
1244
     */
1245
    int mb_qmax;
1246
    
1247
    /**
1248
     * motion estimation compare function.
1249
     * - encoding: set by user.
1250
     * - decoding: unused
1251
     */
1252
    int me_cmp;
1253
    /**
1254
     * subpixel motion estimation compare function.
1255
     * - encoding: set by user.
1256
     * - decoding: unused
1257
     */
1258
    int me_sub_cmp;
1259
    /**
1260
     * macroblock compare function (not supported yet).
1261
     * - encoding: set by user.
1262
     * - decoding: unused
1263
     */
1264
    int mb_cmp;
1265
    /**
1266
     * interlaced dct compare function
1267
     * - encoding: set by user.
1268
     * - decoding: unused
1269
     */
1270
    int ildct_cmp;
1271
#define FF_CMP_SAD  0
1272
#define FF_CMP_SSE  1
1273
#define FF_CMP_SATD 2
1274
#define FF_CMP_DCT  3
1275
#define FF_CMP_PSNR 4
1276
#define FF_CMP_BIT  5
1277
#define FF_CMP_RD   6
1278
#define FF_CMP_ZERO 7
1279
#define FF_CMP_VSAD 8
1280
#define FF_CMP_VSSE 9
1281
#define FF_CMP_NSSE 10
1282
#define FF_CMP_W53  11
1283
#define FF_CMP_W97  12
1284
#define FF_CMP_CHROMA 256
1285
    
1286
    /**
1287
     * ME diamond size & shape.
1288
     * - encoding: set by user.
1289
     * - decoding: unused
1290
     */
1291
    int dia_size;
1292

    
1293
    /**
1294
     * amount of previous MV predictors (2a+1 x 2a+1 square).
1295
     * - encoding: set by user.
1296
     * - decoding: unused
1297
     */
1298
    int last_predictor_count;
1299

    
1300
    /**
1301
     * pre pass for motion estimation.
1302
     * - encoding: set by user.
1303
     * - decoding: unused
1304
     */
1305
    int pre_me;
1306

    
1307
    /**
1308
     * motion estimation pre pass compare function.
1309
     * - encoding: set by user.
1310
     * - decoding: unused
1311
     */
1312
    int me_pre_cmp;
1313

    
1314
    /**
1315
     * ME pre pass diamond size & shape.
1316
     * - encoding: set by user.
1317
     * - decoding: unused
1318
     */
1319
    int pre_dia_size;
1320

    
1321
    /**
1322
     * subpel ME quality.
1323
     * - encoding: set by user.
1324
     * - decoding: unused
1325
     */
1326
    int me_subpel_quality;
1327

    
1328
    /**
1329
     * callback to negotiate the pixelFormat.
1330
     * @param fmt is the list of formats which are supported by the codec,
1331
     * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1332
     * the first is allways the native one
1333
     * @return the choosen format
1334
     * - encoding: unused
1335
     * - decoding: set by user, if not set then the native format will always be choosen
1336
     */
1337
    enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
1338

    
1339
    /**
1340
     * DTG active format information (additionnal aspect ratio
1341
     * information only used in DVB MPEG2 transport streams). 0 if
1342
     * not set.
1343
     * 
1344
     * - encoding: unused.
1345
     * - decoding: set by decoder 
1346
     */
1347
    int dtg_active_format;
1348
#define FF_DTG_AFD_SAME         8
1349
#define FF_DTG_AFD_4_3          9
1350
#define FF_DTG_AFD_16_9         10
1351
#define FF_DTG_AFD_14_9         11
1352
#define FF_DTG_AFD_4_3_SP_14_9  13
1353
#define FF_DTG_AFD_16_9_SP_14_9 14
1354
#define FF_DTG_AFD_SP_4_3       15
1355

    
1356
    /**
1357
     * Maximum motion estimation search range in subpel units.
1358
     * if 0 then no limit
1359
     * 
1360
     * - encoding: set by user.
1361
     * - decoding: unused.
1362
     */
1363
    int me_range;
1364

    
1365
    /**
1366
     * frame_rate_base.
1367
     * for variable fps this is 1
1368
     * - encoding: set by user.
1369
     * - decoding: set by lavc.
1370
     * @todo move this after frame_rate
1371
     */
1372

    
1373
    int frame_rate_base;
1374
    /**
1375
     * intra quantizer bias.
1376
     * - encoding: set by user.
1377
     * - decoding: unused
1378
     */
1379
    int intra_quant_bias;
1380
#define FF_DEFAULT_QUANT_BIAS 999999
1381
    
1382
    /**
1383
     * inter quantizer bias.
1384
     * - encoding: set by user.
1385
     * - decoding: unused
1386
     */
1387
    int inter_quant_bias;
1388

    
1389
    /**
1390
     * color table ID.
1391
     * - encoding: unused.
1392
     * - decoding: which clrtable should be used for 8bit RGB images
1393
     *             table have to be stored somewhere FIXME
1394
     */
1395
    int color_table_id;
1396
    
1397
    /**
1398
     * internal_buffer count. 
1399
     * Dont touch, used by lavc default_get_buffer()
1400
     */
1401
    int internal_buffer_count;
1402
    
1403
    /**
1404
     * internal_buffers. 
1405
     * Dont touch, used by lavc default_get_buffer()
1406
     */
1407
    void *internal_buffer;
1408

    
1409
#define FF_LAMBDA_SHIFT 7
1410
#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1411
#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1412
#define FF_LAMBDA_MAX (256*128-1)
1413

    
1414
#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
1415
    /**
1416
     * global quality for codecs which cannot change it per frame.
1417
     * this should be proportional to MPEG1/2/4 qscale.
1418
     * - encoding: set by user.
1419
     * - decoding: unused
1420
     */
1421
    int global_quality;
1422
    
1423
#define FF_CODER_TYPE_VLC   0
1424
#define FF_CODER_TYPE_AC    1
1425
    /**
1426
     * coder type
1427
     * - encoding: set by user.
1428
     * - decoding: unused
1429
     */
1430
    int coder_type;
1431

    
1432
    /**
1433
     * context model
1434
     * - encoding: set by user.
1435
     * - decoding: unused
1436
     */
1437
    int context_model;
1438
    
1439
    /**
1440
     * slice flags
1441
     * - encoding: unused
1442
     * - decoding: set by user.
1443
     */
1444
    int slice_flags;
1445
#define SLICE_FLAG_CODED_ORDER    0x0001 ///< draw_horiz_band() is called in coded order instead of display
1446
#define SLICE_FLAG_ALLOW_FIELD    0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1447
#define SLICE_FLAG_ALLOW_PLANE    0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1448

    
1449
    /**
1450
     * XVideo Motion Acceleration
1451
     * - encoding: forbidden
1452
     * - decoding: set by decoder
1453
     */
1454
    int xvmc_acceleration;
1455
    
1456
    /**
1457
     * macroblock decision mode
1458
     * - encoding: set by user.
1459
     * - decoding: unused
1460
     */
1461
    int mb_decision;
1462
#define FF_MB_DECISION_SIMPLE 0        ///< uses mb_cmp
1463
#define FF_MB_DECISION_BITS   1        ///< chooses the one which needs the fewest bits
1464
#define FF_MB_DECISION_RD     2        ///< rate distoration
1465

    
1466
    /**
1467
     * custom intra quantization matrix
1468
     * - encoding: set by user, can be NULL
1469
     * - decoding: set by lavc
1470
     */
1471
    uint16_t *intra_matrix;
1472

    
1473
    /**
1474
     * custom inter quantization matrix
1475
     * - encoding: set by user, can be NULL
1476
     * - decoding: set by lavc
1477
     */
1478
    uint16_t *inter_matrix;
1479
    
1480
    /**
1481
     * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1482
     * this is used to workaround some encoder bugs
1483
     * - encoding: unused
1484
     * - decoding: set by user, will be converted to upper case by lavc during init
1485
     */
1486
    unsigned int stream_codec_tag;
1487

    
1488
    /**
1489
     * scene change detection threshold.
1490
     * 0 is default, larger means fewer detected scene changes
1491
     * - encoding: set by user.
1492
     * - decoding: unused
1493
     */
1494
    int scenechange_threshold;
1495

    
1496
    /**
1497
     * minimum lagrange multipler
1498
     * - encoding: set by user.
1499
     * - decoding: unused
1500
     */
1501
    int lmin;
1502

    
1503
    /**
1504
     * maximum lagrange multipler
1505
     * - encoding: set by user.
1506
     * - decoding: unused
1507
     */
1508
    int lmax;
1509

    
1510
    /**
1511
     * Palette control structure
1512
     * - encoding: ??? (no palette-enabled encoder yet)
1513
     * - decoding: set by user.
1514
     */
1515
    struct AVPaletteControl *palctrl;
1516

    
1517
    /**
1518
     * noise reduction strength
1519
     * - encoding: set by user.
1520
     * - decoding: unused
1521
     */
1522
    int noise_reduction;
1523
    
1524
    /**
1525
     * called at the beginning of a frame to get cr buffer for it.
1526
     * buffer type (size, hints) must be the same. lavc won't check it.
1527
     * lavc will pass previous buffer in pic, function should return
1528
     * same buffer or new buffer with old frame "painted" into it.
1529
     * if pic.data[0] == NULL must behave like get_buffer().
1530
     * - encoding: unused
1531
     * - decoding: set by lavc, user can override
1532
     */
1533
    int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
1534

    
1535
    /**
1536
     * number of bits which should be loaded into the rc buffer before decoding starts
1537
     * - encoding: set by user.
1538
     * - decoding: unused
1539
     */
1540
    int rc_initial_buffer_occupancy;
1541

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

    
1549
    /**
1550
     * CODEC_FLAG2_*.
1551
     * - encoding: set by user.
1552
     * - decoding: set by user.
1553
     */
1554
    int flags2;
1555

    
1556
    /**
1557
     * simulates errors in the bitstream to test error concealment.
1558
     * - encoding: set by user.
1559
     * - decoding: unused.
1560
     */
1561
    int error_rate;
1562
    
1563
    /**
1564
     * MP3 antialias algorithm, see FF_AA_* below.
1565
     * - encoding: unused
1566
     * - decoding: set by user
1567
     */
1568
    int antialias_algo;
1569
#define FF_AA_AUTO    0
1570
#define FF_AA_FASTINT 1 //not implemented yet
1571
#define FF_AA_INT     2
1572
#define FF_AA_FLOAT   3
1573
    /**
1574
     * Quantizer noise shaping.
1575
     * - encoding: set by user
1576
     * - decoding: unused
1577
     */
1578
    int quantizer_noise_shaping;
1579

    
1580
    /**
1581
     * Thread count.
1582
     * is used to decide how many independant tasks should be passed to execute()
1583
     * - encoding: set by user
1584
     * - decoding: set by user
1585
     */
1586
    int thread_count;
1587
    
1588
    /**
1589
     * the codec may call this to execute several independant things. it will return only after
1590
     * finishing all tasks, the user may replace this with some multithreaded implementation, the
1591
     * default implementation will execute the parts serially
1592
     * @param count the number of things to execute
1593
     * - encoding: set by lavc, user can override
1594
     * - decoding: set by lavc, user can override
1595
     */
1596
    int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
1597
    
1598
    /**
1599
     * Thread opaque.
1600
     * can be used by execute() to store some per AVCodecContext stuff.
1601
     * - encoding: set by execute()
1602
     * - decoding: set by execute()
1603
     */
1604
    void *thread_opaque;
1605

    
1606
    /**
1607
     * Motion estimation threshold. under which no motion estimation is 
1608
     * performed, but instead the user specified motion vectors are used
1609
     * 
1610
     * - encoding: set by user
1611
     * - decoding: unused
1612
     */
1613
     int me_threshold;
1614

    
1615
    /**
1616
     * Macroblock threshold. under which the user specified macroblock types will be used
1617
     * - encoding: set by user
1618
     * - decoding: unused
1619
     */
1620
     int mb_threshold;
1621

    
1622
    /**
1623
     * precision of the intra dc coefficient - 8.
1624
     * - encoding: set by user
1625
     * - decoding: unused
1626
     */
1627
     int intra_dc_precision;
1628

    
1629
    /**
1630
     * noise vs. sse weight for the nsse comparsion function.
1631
     * - encoding: set by user
1632
     * - decoding: unused
1633
     */
1634
     int nsse_weight;
1635

    
1636
    /**
1637
     * number of macroblock rows at the top which are skiped.
1638
     * - encoding: unused
1639
     * - decoding: set by user
1640
     */
1641
     int skip_top;
1642

    
1643
    /**
1644
     * number of macroblock rows at the bottom which are skiped.
1645
     * - encoding: unused
1646
     * - decoding: set by user
1647
     */
1648
     int skip_bottom;
1649

    
1650
    /**
1651
     * profile
1652
     * - encoding: set by user
1653
     * - decoding: set by lavc
1654
     */
1655
     int profile;
1656
#define FF_PROFILE_UNKNOWN -99
1657

    
1658
    /**
1659
     * level
1660
     * - encoding: set by user
1661
     * - decoding: set by lavc
1662
     */
1663
     int level;
1664
#define FF_LEVEL_UNKNOWN -99
1665

    
1666
    /**
1667
     * low resolution decoding. 1-> 1/2 size, 2->1/4 size
1668
     * - encoding: unused
1669
     * - decoding: set by user
1670
     */
1671
     int lowres;
1672

    
1673
    /**
1674
     * bistream width / height. may be different from width/height if lowres
1675
     * or other things are used
1676
     * - encoding: unused
1677
     * - decoding: set by user before init if known, codec should override / dynamically change if needed
1678
     */
1679
    int coded_width, coded_height;
1680
} AVCodecContext;
1681

    
1682

    
1683
/**
1684
 * AVOption.
1685
 */
1686
typedef struct AVOption {
1687
    /** options' name */
1688
    const char *name; /* if name is NULL, it indicates a link to next */
1689
    /** short English text help or const struct AVOption* subpointer */
1690
    const char *help; //        const struct AVOption* sub;
1691
    /** offset to context structure where the parsed value should be stored */
1692
    int offset;
1693
    /** options' type */
1694
    int type;
1695
#define FF_OPT_TYPE_BOOL 1      ///< boolean - true,1,on  (or simply presence)
1696
#define FF_OPT_TYPE_DOUBLE 2    ///< double
1697
#define FF_OPT_TYPE_INT 3       ///< integer
1698
#define FF_OPT_TYPE_STRING 4    ///< string (finished with \0)
1699
#define FF_OPT_TYPE_MASK 0x1f        ///< mask for types - upper bits are various flags
1700
//#define FF_OPT_TYPE_EXPERT 0x20 // flag for expert option
1701
#define FF_OPT_TYPE_FLAG (FF_OPT_TYPE_BOOL | 0x40)
1702
#define FF_OPT_TYPE_RCOVERRIDE (FF_OPT_TYPE_STRING | 0x80)
1703
    /** min value  (min == max   ->  no limits) */
1704
    double min;
1705
    /** maximum value for double/int */
1706
    double max;
1707
    /** default boo [0,1]l/double/int value */
1708
    double defval;
1709
    /**
1710
     * default string value (with optional semicolon delimited extra option-list
1711
     * i.e.   option1;option2;option3
1712
     * defval might select other then first argument as default
1713
     */
1714
    const char *defstr;
1715
#define FF_OPT_MAX_DEPTH 10
1716
} AVOption;
1717

    
1718
/**
1719
 * Parse option(s) and sets fields in passed structure
1720
 * @param strct        structure where the parsed results will be written
1721
 * @param list  list with AVOptions
1722
 * @param opts        string with options for parsing
1723
 */
1724
int avoption_parse(void* strct, const AVOption* list, const char* opts);
1725

    
1726

    
1727
/**
1728
 * AVCodec.
1729
 */
1730
typedef struct AVCodec {
1731
    const char *name;
1732
    enum CodecType type;
1733
    int id;
1734
    int priv_data_size;
1735
    int (*init)(AVCodecContext *);
1736
    int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
1737
    int (*close)(AVCodecContext *);
1738
    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
1739
                  uint8_t *buf, int buf_size);
1740
    int capabilities;
1741
    const AVOption *options;
1742
    struct AVCodec *next;
1743
    void (*flush)(AVCodecContext *);
1744
    const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
1745
    const enum PixelFormat *pix_fmts;       ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
1746
} AVCodec;
1747

    
1748
/**
1749
 * four components are given, that's all.
1750
 * the last component is alpha
1751
 */
1752
typedef struct AVPicture {
1753
    uint8_t *data[4];
1754
    int linesize[4];       ///< number of bytes per line
1755
} AVPicture;
1756

    
1757
/**
1758
 * AVPaletteControl
1759
 * This structure defines a method for communicating palette changes
1760
 * between and demuxer and a decoder.
1761
 */
1762
#define AVPALETTE_SIZE 1024
1763
#define AVPALETTE_COUNT 256
1764
typedef struct AVPaletteControl {
1765

    
1766
    /* demuxer sets this to 1 to indicate the palette has changed;
1767
     * decoder resets to 0 */
1768
    int palette_changed;
1769

    
1770
    /* 4-byte ARGB palette entries, stored in native byte order; note that
1771
     * the individual palette components should be on a 8-bit scale; if
1772
     * the palette data comes from a IBM VGA native format, the component
1773
     * data is probably 6 bits in size and needs to be scaled */
1774
    unsigned int palette[AVPALETTE_COUNT];
1775

    
1776
} AVPaletteControl;
1777

    
1778
extern AVCodec ac3_encoder;
1779
extern AVCodec mp2_encoder;
1780
extern AVCodec mp3lame_encoder;
1781
extern AVCodec oggvorbis_encoder;
1782
extern AVCodec faac_encoder;
1783
extern AVCodec xvid_encoder;
1784
extern AVCodec mpeg1video_encoder;
1785
extern AVCodec mpeg2video_encoder;
1786
extern AVCodec h263_encoder;
1787
extern AVCodec h263p_encoder;
1788
extern AVCodec flv_encoder;
1789
extern AVCodec rv10_encoder;
1790
extern AVCodec rv20_encoder;
1791
extern AVCodec dvvideo_encoder;
1792
extern AVCodec mjpeg_encoder;
1793
extern AVCodec ljpeg_encoder;
1794
extern AVCodec mpeg4_encoder;
1795
extern AVCodec msmpeg4v1_encoder;
1796
extern AVCodec msmpeg4v2_encoder;
1797
extern AVCodec msmpeg4v3_encoder;
1798
extern AVCodec wmv1_encoder;
1799
extern AVCodec wmv2_encoder;
1800
extern AVCodec huffyuv_encoder;
1801
extern AVCodec h264_encoder;
1802
extern AVCodec asv1_encoder;
1803
extern AVCodec asv2_encoder;
1804
extern AVCodec vcr1_encoder;
1805
extern AVCodec ffv1_encoder;
1806
extern AVCodec snow_encoder;
1807
extern AVCodec mdec_encoder;
1808
extern AVCodec zlib_encoder;
1809
extern AVCodec sonic_encoder;
1810
extern AVCodec sonic_ls_encoder;
1811
extern AVCodec svq1_encoder;
1812

    
1813
extern AVCodec h263_decoder;
1814
extern AVCodec h261_decoder;
1815
extern AVCodec mpeg4_decoder;
1816
extern AVCodec msmpeg4v1_decoder;
1817
extern AVCodec msmpeg4v2_decoder;
1818
extern AVCodec msmpeg4v3_decoder;
1819
extern AVCodec wmv1_decoder;
1820
extern AVCodec wmv2_decoder;
1821
extern AVCodec mpeg1video_decoder;
1822
extern AVCodec mpeg2video_decoder;
1823
extern AVCodec mpegvideo_decoder;
1824
extern AVCodec mpeg_xvmc_decoder;
1825
extern AVCodec h263i_decoder;
1826
extern AVCodec flv_decoder;
1827
extern AVCodec rv10_decoder;
1828
extern AVCodec rv20_decoder;
1829
extern AVCodec svq1_decoder;
1830
extern AVCodec svq3_decoder;
1831
extern AVCodec dvvideo_decoder;
1832
extern AVCodec wmav1_decoder;
1833
extern AVCodec wmav2_decoder;
1834
extern AVCodec mjpeg_decoder;
1835
extern AVCodec mjpegb_decoder;
1836
extern AVCodec sp5x_decoder;
1837
extern AVCodec mp2_decoder;
1838
extern AVCodec mp3_decoder;
1839
extern AVCodec mace3_decoder;
1840
extern AVCodec mace6_decoder;
1841
extern AVCodec huffyuv_decoder;
1842
extern AVCodec oggvorbis_decoder;
1843
extern AVCodec cyuv_decoder;
1844
extern AVCodec h264_decoder;
1845
extern AVCodec indeo3_decoder;
1846
extern AVCodec vp3_decoder;
1847
extern AVCodec theora_decoder;
1848
extern AVCodec amr_nb_decoder;
1849
extern AVCodec amr_nb_encoder;
1850
extern AVCodec amr_wb_encoder;
1851
extern AVCodec amr_wb_decoder;
1852
extern AVCodec aac_decoder;
1853
extern AVCodec mpeg4aac_decoder;
1854
extern AVCodec asv1_decoder;
1855
extern AVCodec asv2_decoder;
1856
extern AVCodec vcr1_decoder;
1857
extern AVCodec cljr_decoder;
1858
extern AVCodec ffv1_decoder;
1859
extern AVCodec snow_decoder;
1860
extern AVCodec fourxm_decoder;
1861
extern AVCodec mdec_decoder;
1862
extern AVCodec roq_decoder;
1863
extern AVCodec interplay_video_decoder;
1864
extern AVCodec xan_wc3_decoder;
1865
extern AVCodec rpza_decoder;
1866
extern AVCodec cinepak_decoder;
1867
extern AVCodec msrle_decoder;
1868
extern AVCodec msvideo1_decoder;
1869
extern AVCodec vqa_decoder;
1870
extern AVCodec idcin_decoder;
1871
extern AVCodec eightbps_decoder;
1872
extern AVCodec smc_decoder;
1873
extern AVCodec flic_decoder;
1874
extern AVCodec vmdvideo_decoder;
1875
extern AVCodec vmdaudio_decoder;
1876
extern AVCodec truemotion1_decoder;
1877
extern AVCodec mszh_decoder;
1878
extern AVCodec zlib_decoder;
1879
extern AVCodec ra_144_decoder;
1880
extern AVCodec ra_288_decoder;
1881
extern AVCodec roq_dpcm_decoder;
1882
extern AVCodec interplay_dpcm_decoder;
1883
extern AVCodec xan_dpcm_decoder;
1884
extern AVCodec sol_dpcm_decoder;
1885
extern AVCodec sonic_decoder;
1886
extern AVCodec qtrle_decoder;
1887
extern AVCodec flac_decoder;
1888
extern AVCodec tscc_decoder;
1889
extern AVCodec ulti_decoder;
1890
extern AVCodec qdraw_decoder;
1891

    
1892
/* pcm codecs */
1893
#define PCM_CODEC(id, name) \
1894
extern AVCodec name ## _decoder; \
1895
extern AVCodec name ## _encoder
1896

    
1897
PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
1898
PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
1899
PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
1900
PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
1901
PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
1902
PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
1903
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
1904
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
1905

    
1906
/* adpcm codecs */
1907

    
1908
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
1909
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
1910
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
1911
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
1912
PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
1913
PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
1914
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
1915
PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
1916
PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
1917
PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
1918
PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
1919
PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
1920
PCM_CODEC(CODEC_ID_ADPCM_CT, adpcm_ct);
1921

    
1922
#undef PCM_CODEC
1923

    
1924
/* dummy raw video codec */
1925
extern AVCodec rawvideo_encoder;
1926
extern AVCodec rawvideo_decoder;
1927

    
1928
/* the following codecs use external GPL libs */
1929
extern AVCodec ac3_decoder;
1930
extern AVCodec dts_decoder;
1931

    
1932
/* resample.c */
1933

    
1934
struct ReSampleContext;
1935
struct AVResampleContext;
1936

    
1937
typedef struct ReSampleContext ReSampleContext;
1938

    
1939
ReSampleContext *audio_resample_init(int output_channels, int input_channels, 
1940
                                     int output_rate, int input_rate);
1941
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
1942
void audio_resample_close(ReSampleContext *s);
1943

    
1944
struct AVResampleContext *av_resample_init(int out_rate, int in_rate);
1945
int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
1946
void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
1947
void av_resample_close(struct AVResampleContext *c);
1948

    
1949
/* YUV420 format is assumed ! */
1950

    
1951
struct ImgReSampleContext;
1952

    
1953
typedef struct ImgReSampleContext ImgReSampleContext;
1954

    
1955
ImgReSampleContext *img_resample_init(int output_width, int output_height,
1956
                                      int input_width, int input_height);
1957

    
1958
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
1959
                                      int iwidth, int iheight,
1960
                                      int topBand, int bottomBand,
1961
                                      int leftBand, int rightBand,
1962
                                      int padtop, int padbottom,
1963
                                      int padleft, int padright);
1964

    
1965

    
1966
void img_resample(ImgReSampleContext *s, 
1967
                  AVPicture *output, const AVPicture *input);
1968

    
1969
void img_resample_close(ImgReSampleContext *s);
1970

    
1971
/**
1972
 * Allocate memory for a picture.  Call avpicture_free to free it.
1973
 *
1974
 * @param picture the picture to be filled in.
1975
 * @param pix_fmt the format of the picture.
1976
 * @param width the width of the picture.
1977
 * @param height the height of the picture.
1978
 * @return 0 if successful, -1 if not.
1979
 */
1980
int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
1981

    
1982
/* Free a picture previously allocated by avpicture_alloc. */
1983
void avpicture_free(AVPicture *picture);
1984

    
1985
int avpicture_fill(AVPicture *picture, uint8_t *ptr,
1986
                   int pix_fmt, int width, int height);
1987
int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
1988
                     unsigned char *dest, int dest_size);
1989
int avpicture_get_size(int pix_fmt, int width, int height);
1990
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
1991
const char *avcodec_get_pix_fmt_name(int pix_fmt);
1992
void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
1993
enum PixelFormat avcodec_get_pix_fmt(const char* name);
1994

    
1995
#define FF_LOSS_RESOLUTION  0x0001 /* loss due to resolution change */
1996
#define FF_LOSS_DEPTH       0x0002 /* loss due to color depth change */
1997
#define FF_LOSS_COLORSPACE  0x0004 /* loss due to color space conversion */
1998
#define FF_LOSS_ALPHA       0x0008 /* loss of alpha bits */
1999
#define FF_LOSS_COLORQUANT  0x0010 /* loss due to color quantization */
2000
#define FF_LOSS_CHROMA      0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
2001

    
2002
int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
2003
                             int has_alpha);
2004
int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
2005
                              int has_alpha, int *loss_ptr);
2006

    
2007
#define FF_ALPHA_TRANSP       0x0001 /* image has some totally transparent pixels */
2008
#define FF_ALPHA_SEMI_TRANSP  0x0002 /* image has some transparent pixels */
2009
int img_get_alpha_info(const AVPicture *src,
2010
                       int pix_fmt, int width, int height);
2011

    
2012
/* convert among pixel formats */
2013
int img_convert(AVPicture *dst, int dst_pix_fmt,
2014
                const AVPicture *src, int pix_fmt, 
2015
                int width, int height);
2016

    
2017
/* deinterlace a picture */
2018
int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
2019
                          int pix_fmt, int width, int height);
2020

    
2021
/* external high level API */
2022

    
2023
extern AVCodec *first_avcodec;
2024

    
2025
/* returns LIBAVCODEC_VERSION_INT constant */
2026
unsigned avcodec_version(void);
2027
/* returns LIBAVCODEC_BUILD constant */
2028
unsigned avcodec_build(void);
2029
void avcodec_init(void);
2030

    
2031
void register_avcodec(AVCodec *format);
2032
AVCodec *avcodec_find_encoder(enum CodecID id);
2033
AVCodec *avcodec_find_encoder_by_name(const char *name);
2034
AVCodec *avcodec_find_decoder(enum CodecID id);
2035
AVCodec *avcodec_find_decoder_by_name(const char *name);
2036
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
2037

    
2038
void avcodec_get_context_defaults(AVCodecContext *s);
2039
AVCodecContext *avcodec_alloc_context(void);
2040
void avcodec_get_frame_defaults(AVFrame *pic);
2041
AVFrame *avcodec_alloc_frame(void);
2042

    
2043
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
2044
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
2045
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
2046
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
2047
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
2048

    
2049
int avcodec_thread_init(AVCodecContext *s, int thread_count);
2050
void avcodec_thread_free(AVCodecContext *s);
2051
int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2052
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2053
//FIXME func typedef
2054

    
2055
/**
2056
 * opens / inits the AVCodecContext.
2057
 * not thread save!
2058
 */
2059
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
2060

    
2061
int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples, 
2062
                         int *frame_size_ptr,
2063
                         uint8_t *buf, int buf_size);
2064
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture, 
2065
                         int *got_picture_ptr,
2066
                         uint8_t *buf, int buf_size);
2067
int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata, 
2068
                        int *data_size_ptr,
2069
                        uint8_t *buf, int buf_size);
2070
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
2071
                         const short *samples);
2072
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
2073
                         const AVFrame *pict);
2074

    
2075
int avcodec_close(AVCodecContext *avctx);
2076

    
2077
void avcodec_register_all(void);
2078

    
2079
void avcodec_flush_buffers(AVCodecContext *avctx);
2080

    
2081
/* misc usefull functions */
2082

    
2083
/**
2084
 * returns a single letter to describe the picture type
2085
 */
2086
char av_get_pict_type_char(int pict_type);
2087

    
2088
/**
2089
 * reduce a fraction.
2090
 * this is usefull for framerate calculations
2091
 * @param max the maximum allowed for dst_nom & dst_den
2092
 * @return 1 if exact, 0 otherwise
2093
 */
2094
int av_reduce(int *dst_nom, int *dst_den, int64_t nom, int64_t den, int64_t max);
2095

    
2096
/**
2097
 * rescale a 64bit integer with rounding to nearest.
2098
 * a simple a*b/c isnt possible as it can overflow
2099
 */
2100
int64_t av_rescale(int64_t a, int64_t b, int64_t c);
2101

    
2102
/**
2103
 * rescale a 64bit integer with specified rounding.
2104
 * a simple a*b/c isnt possible as it can overflow
2105
 */
2106
int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding);
2107

    
2108
/* frame parsing */
2109
typedef struct AVCodecParserContext {
2110
    void *priv_data;
2111
    struct AVCodecParser *parser;
2112
    int64_t frame_offset; /* offset of the current frame */
2113
    int64_t cur_offset; /* current offset 
2114
                           (incremented by each av_parser_parse()) */
2115
    int64_t last_frame_offset; /* offset of the last frame */
2116
    /* video info */
2117
    int pict_type; /* XXX: put it back in AVCodecContext */
2118
    int repeat_pict; /* XXX: put it back in AVCodecContext */
2119
    int64_t pts;     /* pts of the current frame */
2120
    int64_t dts;     /* dts of the current frame */
2121

    
2122
    /* private data */
2123
    int64_t last_pts;
2124
    int64_t last_dts;
2125
    int fetch_timestamp;
2126

    
2127
#define AV_PARSER_PTS_NB 4
2128
    int cur_frame_start_index;
2129
    int64_t cur_frame_offset[AV_PARSER_PTS_NB];
2130
    int64_t cur_frame_pts[AV_PARSER_PTS_NB];
2131
    int64_t cur_frame_dts[AV_PARSER_PTS_NB];
2132
} AVCodecParserContext;
2133

    
2134
typedef struct AVCodecParser {
2135
    int codec_ids[3]; /* several codec IDs are permitted */
2136
    int priv_data_size;
2137
    int (*parser_init)(AVCodecParserContext *s);
2138
    int (*parser_parse)(AVCodecParserContext *s, 
2139
                        AVCodecContext *avctx,
2140
                        uint8_t **poutbuf, int *poutbuf_size, 
2141
                        const uint8_t *buf, int buf_size);
2142
    void (*parser_close)(AVCodecParserContext *s);
2143
    struct AVCodecParser *next;
2144
} AVCodecParser;
2145

    
2146
extern AVCodecParser *av_first_parser;
2147

    
2148
void av_register_codec_parser(AVCodecParser *parser);
2149
AVCodecParserContext *av_parser_init(int codec_id);
2150
int av_parser_parse(AVCodecParserContext *s, 
2151
                    AVCodecContext *avctx,
2152
                    uint8_t **poutbuf, int *poutbuf_size, 
2153
                    const uint8_t *buf, int buf_size,
2154
                    int64_t pts, int64_t dts);
2155
void av_parser_close(AVCodecParserContext *s);
2156

    
2157
extern AVCodecParser mpegvideo_parser;
2158
extern AVCodecParser mpeg4video_parser;
2159
extern AVCodecParser h261_parser;
2160
extern AVCodecParser h263_parser;
2161
extern AVCodecParser h264_parser;
2162
extern AVCodecParser mpegaudio_parser;
2163
extern AVCodecParser ac3_parser;
2164

    
2165
/* memory */
2166
void *av_malloc(unsigned int size);
2167
void *av_mallocz(unsigned int size);
2168
void *av_realloc(void *ptr, unsigned int size);
2169
void av_free(void *ptr);
2170
char *av_strdup(const char *s);
2171
void av_freep(void *ptr);
2172
void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
2173
/* for static data only */
2174
/* call av_free_static to release all staticaly allocated tables */
2175
void av_free_static(void);
2176
void *av_mallocz_static(unsigned int size);
2177

    
2178
/* add by bero : in adx.c */
2179
int is_adx(const unsigned char *buf,size_t bufsize);
2180

    
2181
void img_copy(AVPicture *dst, const AVPicture *src,
2182
              int pix_fmt, int width, int height);
2183

    
2184
/* av_log API */
2185

    
2186
#include <stdarg.h>
2187

    
2188
#define AV_LOG_QUIET -1
2189
#define AV_LOG_ERROR 0
2190
#define AV_LOG_INFO 1
2191
#define AV_LOG_DEBUG 2
2192

    
2193
#ifdef __GNUC__
2194
extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
2195
#else
2196
extern void av_log(void*, int level, const char *fmt, ...);
2197
#endif
2198

    
2199
extern void av_vlog(void*, int level, const char *fmt, va_list);
2200
extern int av_log_get_level(void);
2201
extern void av_log_set_level(int);
2202
extern void av_log_set_callback(void (*)(void*, int, const char*, va_list));
2203

    
2204
/* endian macros */
2205
#if !defined(BE_16) || !defined(BE_32) || !defined(LE_16) || !defined(LE_32)
2206
#define BE_16(x)  ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
2207
#define BE_32(x)  ((((uint8_t*)(x))[0] << 24) | \
2208
                   (((uint8_t*)(x))[1] << 16) | \
2209
                   (((uint8_t*)(x))[2] << 8) | \
2210
                    ((uint8_t*)(x))[3])
2211
#define LE_16(x)  ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
2212
#define LE_32(x)  ((((uint8_t*)(x))[3] << 24) | \
2213
                   (((uint8_t*)(x))[2] << 16) | \
2214
                   (((uint8_t*)(x))[1] << 8) | \
2215
                    ((uint8_t*)(x))[0])
2216
#endif
2217

    
2218
#ifdef __cplusplus
2219
}
2220
#endif
2221

    
2222
#endif /* AVCODEC_H */