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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     0x000408
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#define FFMPEG_VERSION         "0.4.8"
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#define LIBAVCODEC_BUILD       4697
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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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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_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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    /* 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_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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        /* 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_MPEG2TS, /* _FAKE_ codec to indicate a raw MPEG2 transport
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                         stream (only used by libavformat) */
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};
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/* CODEC_ID_MP3LAME is absolete */
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#define CODEC_ID_MP3LAME CODEC_ID_MP3
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enum CodecType {
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    CODEC_TYPE_UNKNOWN = -1,
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    CODEC_TYPE_VIDEO,
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    CODEC_TYPE_AUDIO,
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    CODEC_TYPE_DATA,
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};
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/**
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 * Pixel format. Notes: 
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 *
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 * PIX_FMT_RGBA32 is handled in an endian-specific manner. A RGBA
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 * color is put together as:
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 *  (A << 24) | (R << 16) | (G << 8) | B
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 * This is stored as BGRA on little endian CPU architectures and ARGB on
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 * big endian CPUs.
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 *
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 * When the pixel format is palettized RGB (PIX_FMT_PAL8), the palettized
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 * image data is stored in AVFrame.data[0]. The palette is transported in
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 * AVFrame.data[1] and, is 1024 bytes long (256 4-byte entries) and is
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 * formatted the same as in PIX_FMT_RGBA32 described above (i.e., it is
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 * also endian-specific). Note also that the individual RGB palette
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 * components stored in AVFrame.data[1] should be in the range 0..255.
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 * This is important as many custom PAL8 video codecs that were designed
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 * to run on the IBM VGA graphics adapter use 6-bit palette components.
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 */
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enum PixelFormat {
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    PIX_FMT_YUV420P,   ///< Planar YUV 4:2:0 (1 Cr & Cb sample per 2x2 Y samples)
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    PIX_FMT_YUV422,    
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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_NB,
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};
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/* currently unused, may be used if 24/32 bits samples ever supported */
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enum SampleFormat {
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    SAMPLE_FMT_S16 = 0,         ///< signed 16 bits 
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};
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/* in bytes */
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#define AVCODEC_MAX_AUDIO_FRAME_SIZE 131072
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/**
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 * Required number of additionally allocated bytes at the end of the input bitstream for decoding.
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 * this is mainly needed because some optimized bitstream readers read 
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 * 32 or 64 bit at once and could read over the end<br>
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 * Note, if the first 23 bits of the additional bytes are not 0 then damaged
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 * MPEG bitstreams could cause overread and segfault
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 */
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#define FF_INPUT_BUFFER_PADDING_SIZE 8
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/* motion estimation type, EPZS by default */
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enum Motion_Est_ID {
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    ME_ZERO = 1,
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    ME_FULL,
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    ME_LOG,
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    ME_PHODS,
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    ME_EPZS,
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    ME_X1
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};
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typedef struct RcOverride{
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    int start_frame;
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    int end_frame;
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    int qscale; // if this is 0 then quality_factor will be used instead
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    float quality_factor;
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} RcOverride;
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/* only for ME compatiblity with old apps */
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extern int motion_estimation_method;
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/* ME algos sorted by quality */
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//FIXME remove IMHO
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static const __attribute__((unused)) int Motion_Est_QTab[] =
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 { ME_ZERO, ME_PHODS, ME_LOG, ME_X1, ME_EPZS, ME_FULL };
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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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/* 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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//the following defines might change, so dont expect compatibility if u use them
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#define MB_TYPE_INTRA4x4   0x0001
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#define MB_TYPE_INTRA16x16 0x0002 //FIXME h264 specific
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#define MB_TYPE_INTRA_PCM  0x0004 //FIXME h264 specific
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#define MB_TYPE_16x16      0x0008
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#define MB_TYPE_16x8       0x0010
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#define MB_TYPE_8x16       0x0020
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#define MB_TYPE_8x8        0x0040
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#define MB_TYPE_INTERLACED 0x0080
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#define MB_TYPE_DIRECT2     0x0100 //FIXME
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#define MB_TYPE_ACPRED     0x0200
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#define MB_TYPE_GMC        0x0400
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#define MB_TYPE_SKIP       0x0800
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#define MB_TYPE_P0L0       0x1000
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#define MB_TYPE_P1L0       0x2000
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#define MB_TYPE_P0L1       0x4000
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#define MB_TYPE_P1L1       0x8000
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#define MB_TYPE_L0         (MB_TYPE_P0L0 | MB_TYPE_P1L0)
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#define MB_TYPE_L1         (MB_TYPE_P0L1 | MB_TYPE_P1L1)
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#define MB_TYPE_L0L1       (MB_TYPE_L0   | MB_TYPE_L1)
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#define MB_TYPE_QUANT      0x00010000
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#define MB_TYPE_CBP        0x00020000
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//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...)
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/**
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 * Pan Scan area.
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 * this specifies the area which should be displayed. Note there may be multiple such areas for one frame
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 */
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typedef struct AVPanScan{
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    /**
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     * id.
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     * - encoding: set by user.
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     * - decoding: set by lavc
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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
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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 width;
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    int height;
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    /**
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     * position of the top left corner in 1/16 pel for up to 3 fields/frames.
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     * - encoding: set by user.
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     * - decoding: set by lavc
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     */
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    int16_t position[3][2];
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}AVPanScan;
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#define FF_COMMON_FRAME \
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    /**\
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     * pointer to the picture planes.\
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     * this might be different from the first allocated byte\
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     * - encoding: \
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     * - decoding: \
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     */\
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    uint8_t *data[4];\
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    int linesize[4];\
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    /**\
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     * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
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     * this isnt used by lavc unless the default get/release_buffer() is used\
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     * - encoding: \
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     * - decoding: \
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     */\
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    uint8_t *base[4];\
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    /**\
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     * 1 -> keyframe, 0-> not\
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     * - encoding: set by lavc\
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     * - decoding: set by lavc\
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     */\
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    int key_frame;\
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\
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    /**\
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     * picture type of the frame, see ?_TYPE below.\
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     * - encoding: set by lavc for coded_picture (and set by user for input)\
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     * - decoding: set by lavc\
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     */\
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    int pict_type;\
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\
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    /**\
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     * presentation timestamp in micro seconds (time when frame should be shown to user)\
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     * if 0 then the frame_rate will be used as reference\
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     * - encoding: MUST be set by user\
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     * - decoding: set by lavc\
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     */\
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    int64_t pts;\
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\
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    /**\
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     * picture number in bitstream order.\
377
     * - encoding: set by\
378
     * - decoding: set by lavc\
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     */\
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    int coded_picture_number;\
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    /**\
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     * picture number in display order.\
383
     * - encoding: set by\
384
     * - decoding: set by lavc\
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     */\
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    int display_picture_number;\
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\
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    /**\
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     * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
390
     * - encoding: set by lavc for coded_picture (and set by user for input)\
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     * - decoding: set by lavc\
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     */\
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    int quality; \
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\
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    /**\
396
     * buffer age (1->was last buffer and dint change, 2->..., ...).\
397
     * set to INT_MAX if the buffer has not been used yet \
398
     * - encoding: unused\
399
     * - decoding: MUST be set by get_buffer()\
400
     */\
401
    int age;\
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\
403
    /**\
404
     * is this picture used as reference\
405
     * - encoding: unused\
406
     * - decoding: set by lavc (before get_buffer() call))\
407
     */\
408
    int reference;\
409
\
410
    /**\
411
     * QP table\
412
     * - encoding: unused\
413
     * - decoding: set by lavc\
414
     */\
415
    int8_t *qscale_table;\
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    /**\
417
     * QP store stride\
418
     * - encoding: unused\
419
     * - decoding: set by lavc\
420
     */\
421
    int qstride;\
422
\
423
    /**\
424
     * mbskip_table[mb]>=1 if MB didnt change\
425
     * stride= mb_width = (width+15)>>4\
426
     * - encoding: unused\
427
     * - decoding: set by lavc\
428
     */\
429
    uint8_t *mbskip_table;\
430
\
431
    /**\
432
     * Motion vector table\
433
     * - encoding: unused\
434
     * - decoding: set by lavc\
435
     */\
436
    int16_t (*motion_val[2])[2];\
437
\
438
    /**\
439
     * Macroblock type table\
440
     * mb_type_base + mb_width + 2\
441
     * - encoding: unused\
442
     * - decoding: set by lavc\
443
     */\
444
    uint32_t *mb_type;\
445
\
446
    /**\
447
     * Macroblock size: (0->16x16, 1->8x8, 2-> 4x4, 3-> 2x2)\
448
     * - encoding: unused\
449
     * - decoding: set by lavc\
450
     */\
451
    uint8_t motion_subsample_log2;\
452
\
453
    /**\
454
     * for some private data of the user\
455
     * - encoding: unused\
456
     * - decoding: set by user\
457
     */\
458
    void *opaque;\
459
\
460
    /**\
461
     * error\
462
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
463
     * - decoding: unused\
464
     */\
465
    uint64_t error[4];\
466
\
467
    /**\
468
     * type of the buffer (to keep track of who has to dealloc data[*])\
469
     * - encoding: set by the one who allocs it\
470
     * - decoding: set by the one who allocs it\
471
     * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
472
     */\
473
    int type;\
474
    \
475
    /**\
476
     * when decoding, this signal how much the picture must be delayed.\
477
     * extra_delay = repeat_pict / (2*fps)\
478
     * - encoding: unused\
479
     * - decoding: set by lavc\
480
     */\
481
    int repeat_pict;\
482
    \
483
    /**\
484
     * \
485
     */\
486
    int qscale_type;\
487
    \
488
    /**\
489
     * The content of the picture is interlaced.\
490
     * - encoding: set by user\
491
     * - decoding: set by lavc (default 0)\
492
     */\
493
    int interlaced_frame;\
494
    \
495
    /**\
496
     * if the content is interlaced, is top field displayed first.\
497
     * - encoding: set by user\
498
     * - decoding: set by lavc\
499
     */\
500
    int top_field_first;\
501
    \
502
    /**\
503
     * Pan scan.\
504
     * - encoding: set by user\
505
     * - decoding: set by lavc\
506
     */\
507
    AVPanScan *pan_scan;\
508
    \
509
    /**\
510
     * tell user application that palette has changed from previous frame.\
511
     * - encoding: ??? (no palette-enabled encoder yet)\
512
     * - decoding: set by lavc (default 0)\
513
     */\
514
    int palette_has_changed;\
515
    \
516
    /**\
517
     * Codec suggestion on buffer type if != 0\
518
     * - encoding: unused\
519
     * - decoding: set by lavc (before get_buffer() call))\
520
     */\
521
    int buffer_hints;\
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523
#define FF_QSCALE_TYPE_MPEG1        0
524
#define FF_QSCALE_TYPE_MPEG2        1
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526
#define FF_BUFFER_TYPE_INTERNAL 1
527
#define FF_BUFFER_TYPE_USER     2 ///< Direct rendering buffers (image is (de)allocated by user)
528
#define FF_BUFFER_TYPE_SHARED   4 ///< buffer from somewher else, dont dealloc image (data/base)
529
#define FF_BUFFER_TYPE_COPY     8 ///< just a (modified) copy of some other buffer, dont dealloc anything
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531

    
532
#define FF_I_TYPE 1 // Intra
533
#define FF_P_TYPE 2 // Predicted
534
#define FF_B_TYPE 3 // Bi-dir predicted
535
#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
536
#define FF_SI_TYPE 5
537
#define FF_SP_TYPE 6
538

    
539
#define FF_BUFFER_HINTS_VALID    0x01 // Buffer hints value is meaningful (if 0 ignore)
540
#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
541
#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
542
#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
543

    
544
/**
545
 * Audio Video Frame.
546
 */
547
typedef struct AVFrame {
548
    FF_COMMON_FRAME
549
} AVFrame;
550

    
551
#define DEFAULT_FRAME_RATE_BASE 1001000
552

    
553
/**
554
 * main external api structure.
555
 */
556
typedef struct AVCodecContext {
557
    /**
558
     * the average bitrate.
559
     * - encoding: set by user. unused for constant quantizer encoding
560
     * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream 
561
     */
562
    int bit_rate;
563

    
564
    /**
565
     * number of bits the bitstream is allowed to diverge from the reference.
566
     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
567
     * - encoding: set by user. unused for constant quantizer encoding
568
     * - decoding: unused
569
     */
570
    int bit_rate_tolerance; 
571

    
572
    /**
573
     * CODEC_FLAG_*.
574
     * - encoding: set by user.
575
     * - decoding: set by user.
576
     */
577
    int flags;
578

    
579
    /**
580
     * some codecs needs additionnal format info. It is stored here
581
     * - encoding: set by user. 
582
     * - decoding: set by lavc. (FIXME is this ok?)
583
     */
584
    int sub_id;
585

    
586
    /**
587
     * motion estimation algorithm used for video coding.
588
     * - encoding: MUST be set by user.
589
     * - decoding: unused
590
     */
591
    int me_method;
592

    
593
    /**
594
     * some codecs need / can use extra-data like huffman tables.
595
     * mjpeg: huffman tables
596
     * rv10: additional flags
597
     * mpeg4: global headers (they can be in the bitstream or here)
598
     * - encoding: set/allocated/freed by lavc.
599
     * - decoding: set/allocated/freed by user.
600
     */
601
    void *extradata;
602
    int extradata_size;
603
    
604
    /* video only */
605
    /**
606
     * frames per sec multiplied by frame_rate_base.
607
     * for variable fps this is the precission, so if the timestamps 
608
     * can be specified in msec precssion then this is 1000*frame_rate_base
609
     * - encoding: MUST be set by user
610
     * - decoding: set by lavc. 0 or the frame_rate if available
611
     */
612
    int frame_rate;
613
    
614
    /**
615
     * width / height.
616
     * - encoding: MUST be set by user. 
617
     * - decoding: set by user if known, codec should override / dynamically change if needed
618
     */
619
    int width, height;
620
    
621
#define FF_ASPECT_SQUARE 1
622
#define FF_ASPECT_4_3_625 2
623
#define FF_ASPECT_4_3_525 3
624
#define FF_ASPECT_16_9_625 4
625
#define FF_ASPECT_16_9_525 5
626
#define FF_ASPECT_EXTENDED 15
627

    
628
    /**
629
     * the number of pictures in a group of pitures, or 0 for intra_only.
630
     * - encoding: set by user.
631
     * - decoding: unused
632
     */
633
    int gop_size;
634

    
635
    /**
636
     * pixel format, see PIX_FMT_xxx.
637
     * - encoding: FIXME: used by ffmpeg to decide whether an pix_fmt
638
     *                    conversion is in order. This only works for
639
     *                    codecs with one supported pix_fmt, we should
640
     *                    do something for a generic case as well.
641
     * - decoding: set by lavc.
642
     */
643
    enum PixelFormat pix_fmt;
644
 
645
    /**
646
     * Frame rate emulation. If not zero lower layer (i.e. format handler) 
647
     * has to read frames at native frame rate.
648
     * - encoding: set by user.
649
     * - decoding: unused.
650
     */
651
    int rate_emu;
652
       
653
    /**
654
     * if non NULL, 'draw_horiz_band' is called by the libavcodec
655
     * decoder to draw an horizontal band. It improve cache usage. Not
656
     * all codecs can do that. You must check the codec capabilities
657
     * before
658
     * - encoding: unused
659
     * - decoding: set by user.
660
     * @param height the height of the slice
661
     * @param y the y position of the slice
662
     * @param type 1->top field, 2->bottom field, 3->frame
663
     * @param offset offset into the AVFrame.data from which the slice should be read
664
     */
665
    void (*draw_horiz_band)(struct AVCodecContext *s,
666
                            const AVFrame *src, int offset[4],
667
                            int y, int type, int height);
668

    
669
    /* audio only */
670
    int sample_rate; ///< samples per sec 
671
    int channels;
672
    int sample_fmt;  ///< sample format, currenly unused 
673

    
674
    /* the following data should not be initialized */
675
    int frame_size;     ///< in samples, initialized when calling 'init' 
676
    int frame_number;   ///< audio or video frame number 
677
    int real_pict_num;  ///< returns the real picture number of previous encoded frame 
678
    
679
    /**
680
     * number of frames the decoded output will be delayed relative to 
681
     * the encoded input.
682
     * - encoding: set by lavc.
683
     * - decoding: unused
684
     */
685
    int delay;
686
    
687
    /* - encoding parameters */
688
    float qcompress;  ///< amount of qscale change between easy & hard scenes (0.0-1.0)
689
    float qblur;      ///< amount of qscale smoothing over time (0.0-1.0) 
690
    
691
    /**
692
     * minimum quantizer.
693
     * - encoding: set by user.
694
     * - decoding: unused
695
     */
696
    int qmin;
697

    
698
    /**
699
     * maximum quantizer.
700
     * - encoding: set by user.
701
     * - decoding: unused
702
     */
703
    int qmax;
704

    
705
    /**
706
     * maximum quantizer difference etween frames.
707
     * - encoding: set by user.
708
     * - decoding: unused
709
     */
710
    int max_qdiff;
711

    
712
    /**
713
     * maximum number of b frames between non b frames.
714
     * note: the output will be delayed by max_b_frames+1 relative to the input
715
     * - encoding: set by user.
716
     * - decoding: unused
717
     */
718
    int max_b_frames;
719

    
720
    /**
721
     * qscale factor between ip and b frames.
722
     * - encoding: set by user.
723
     * - decoding: unused
724
     */
725
    float b_quant_factor;
726
    
727
    /** obsolete FIXME remove */
728
    int rc_strategy;
729
    int b_frame_strategy;
730

    
731
    /**
732
     * hurry up amount.
733
     * - encoding: unused
734
     * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
735
     */
736
    int hurry_up;
737
    
738
    struct AVCodec *codec;
739
    
740
    void *priv_data;
741

    
742
    /* unused, FIXME remove*/
743
    int rtp_mode;
744
    
745
    int rtp_payload_size;   /* The size of the RTP payload, the coder will  */
746
                            /* do it's best to deliver a chunk with size    */
747
                            /* below rtp_payload_size, the chunk will start */
748
                            /* with a start code on some codecs like H.263  */
749
                            /* This doesn't take account of any particular  */
750
                            /* headers inside the transmited RTP payload    */
751

    
752
    
753
    /* The RTP callcack: This function is called  */
754
    /* every time the encoder as a packet to send */
755
    /* Depends on the encoder if the data starts  */
756
    /* with a Start Code (it should) H.263 does   */
757
    void (*rtp_callback)(void *data, int size, int packet_number); 
758

    
759
    /* statistics, used for 2-pass encoding */
760
    int mv_bits;
761
    int header_bits;
762
    int i_tex_bits;
763
    int p_tex_bits;
764
    int i_count;
765
    int p_count;
766
    int skip_count;
767
    int misc_bits;
768
    
769
    /**
770
     * number of bits used for the previously encoded frame.
771
     * - encoding: set by lavc
772
     * - decoding: unused
773
     */
774
    int frame_bits;
775

    
776
    /**
777
     * private data of the user, can be used to carry app specific stuff.
778
     * - encoding: set by user
779
     * - decoding: set by user
780
     */
781
    void *opaque;
782

    
783
    char codec_name[32];
784
    enum CodecType codec_type; /* see CODEC_TYPE_xxx */
785
    enum CodecID codec_id; /* see CODEC_ID_xxx */
786
    
787
    /**
788
     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
789
     * this is used to workaround some encoder bugs
790
     * - encoding: set by user, if not then the default based on codec_id will be used
791
     * - decoding: set by user, will be converted to upper case by lavc during init
792
     */
793
    unsigned int codec_tag;
794
    
795
    /**
796
     * workaround bugs in encoders which sometimes cannot be detected automatically.
797
     * - encoding: unused
798
     * - decoding: set by user
799
     */
800
    int workaround_bugs;
801
#define FF_BUG_AUTODETECT       1  ///< autodetection
802
#define FF_BUG_OLD_MSMPEG4      2
803
#define FF_BUG_XVID_ILACE       4
804
#define FF_BUG_UMP4             8
805
#define FF_BUG_NO_PADDING       16
806
#define FF_BUG_AC_VLC           0  ///< will be removed, libavcodec can now handle these non compliant files by default
807
#define FF_BUG_QPEL_CHROMA      64
808
#define FF_BUG_STD_QPEL         128
809
#define FF_BUG_QPEL_CHROMA2     256
810
#define FF_BUG_DIRECT_BLOCKSIZE 512
811
#define FF_BUG_EDGE             1024
812
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
813
        
814
    /**
815
     * luma single coeff elimination threshold.
816
     * - encoding: set by user
817
     * - decoding: unused
818
     */
819
    int luma_elim_threshold;
820
    
821
    /**
822
     * chroma single coeff elimination threshold.
823
     * - encoding: set by user
824
     * - decoding: unused
825
     */
826
    int chroma_elim_threshold;
827
    
828
    /**
829
     * strictly follow the std (MPEG4, ...).
830
     * - encoding: set by user
831
     * - decoding: unused
832
     */
833
    int strict_std_compliance;
834
    
835
    /**
836
     * qscale offset between ip and b frames.
837
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
838
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
839
     * - encoding: set by user.
840
     * - decoding: unused
841
     */
842
    float b_quant_offset;
843
    
844
    /**
845
     * error resilience higher values will detect more errors but may missdetect
846
     * some more or less valid parts as errors.
847
     * - encoding: unused
848
     * - decoding: set by user
849
     */
850
    int error_resilience;
851
#define FF_ER_CAREFULL        1
852
#define FF_ER_COMPLIANT       2
853
#define FF_ER_AGGRESSIVE      3
854
#define FF_ER_VERY_AGGRESSIVE 4
855
    
856
    /**
857
     * called at the beginning of each frame to get a buffer for it.
858
     * if pic.reference is set then the frame will be read later by lavc
859
     * width and height should be rounded up to the next multiple of 16
860
     * - encoding: unused
861
     * - decoding: set by lavc, user can override
862
     */
863
    int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
864
    
865
    /**
866
     * called to release buffers which where allocated with get_buffer.
867
     * a released buffer can be reused in get_buffer()
868
     * pic.data[*] must be set to NULL
869
     * - encoding: unused
870
     * - decoding: set by lavc, user can override
871
     */
872
    void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
873

    
874
    /**
875
     * is 1 if the decoded stream contains b frames, 0 otherwise.
876
     * - encoding: unused
877
     * - decoding: set by lavc
878
     */
879
    int has_b_frames;
880
    
881
    int block_align; ///< used by some WAV based audio codecs
882
    
883
    int parse_only; /* - decoding only: if true, only parsing is done
884
                       (function avcodec_parse_frame()). The frame
885
                       data is returned. Only MPEG codecs support this now. */
886
    
887
    /**
888
     * 0-> h263 quant 1-> mpeg quant.
889
     * - encoding: set by user.
890
     * - decoding: unused
891
     */
892
    int mpeg_quant;
893
    
894
    /**
895
     * pass1 encoding statistics output buffer.
896
     * - encoding: set by lavc
897
     * - decoding: unused
898
     */
899
    char *stats_out;
900
    
901
    /**
902
     * pass2 encoding statistics input buffer.
903
     * concatenated stuff from stats_out of pass1 should be placed here
904
     * - encoding: allocated/set/freed by user
905
     * - decoding: unused
906
     */
907
    char *stats_in;
908
    
909
    /**
910
     * ratecontrol qmin qmax limiting method.
911
     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
912
     * - encoding: set by user.
913
     * - decoding: unused
914
     */
915
    float rc_qsquish;
916

    
917
    float rc_qmod_amp;
918
    int rc_qmod_freq;
919
    
920
    /**
921
     * ratecontrol override, see RcOverride.
922
     * - encoding: allocated/set/freed by user.
923
     * - decoding: unused
924
     */
925
    RcOverride *rc_override;
926
    int rc_override_count;
927
    
928
    /**
929
     * rate control equation.
930
     * - encoding: set by user
931
     * - decoding: unused
932
     */
933
    char *rc_eq;
934
    
935
    /**
936
     * maximum bitrate.
937
     * - encoding: set by user.
938
     * - decoding: unused
939
     */
940
    int rc_max_rate;
941
    
942
    /**
943
     * minimum bitrate.
944
     * - encoding: set by user.
945
     * - decoding: unused
946
     */
947
    int rc_min_rate;
948
    
949
    /**
950
     * decoder bitstream buffer size.
951
     * - encoding: set by user.
952
     * - decoding: unused
953
     */
954
    int rc_buffer_size;
955
    float rc_buffer_aggressivity;
956

    
957
    /**
958
     * qscale factor between p and i frames.
959
     * - encoding: set by user.
960
     * - decoding: unused
961
     */
962
    float i_quant_factor;
963
    
964
    /**
965
     * qscale offset between p and i frames.
966
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
967
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
968
     * - encoding: set by user.
969
     * - decoding: unused
970
     */
971
    float i_quant_offset;
972
    
973
    /**
974
     * initial complexity for pass1 ratecontrol.
975
     * - encoding: set by user.
976
     * - decoding: unused
977
     */
978
    float rc_initial_cplx;
979

    
980
    /**
981
     * dct algorithm, see FF_DCT_* below.
982
     * - encoding: set by user
983
     * - decoding: unused
984
     */
985
    int dct_algo;
986
#define FF_DCT_AUTO    0
987
#define FF_DCT_FASTINT 1
988
#define FF_DCT_INT     2
989
#define FF_DCT_MMX     3
990
#define FF_DCT_MLIB    4
991
#define FF_DCT_ALTIVEC 5
992
#define FF_DCT_FAAN    6
993
    
994
    /**
995
     * luminance masking (0-> disabled).
996
     * - encoding: set by user
997
     * - decoding: unused
998
     */
999
    float lumi_masking;
1000
    
1001
    /**
1002
     * temporary complexity masking (0-> disabled).
1003
     * - encoding: set by user
1004
     * - decoding: unused
1005
     */
1006
    float temporal_cplx_masking;
1007
    
1008
    /**
1009
     * spatial complexity masking (0-> disabled).
1010
     * - encoding: set by user
1011
     * - decoding: unused
1012
     */
1013
    float spatial_cplx_masking;
1014
    
1015
    /**
1016
     * p block masking (0-> disabled).
1017
     * - encoding: set by user
1018
     * - decoding: unused
1019
     */
1020
    float p_masking;
1021

    
1022
    /**
1023
     * darkness masking (0-> disabled).
1024
     * - encoding: set by user
1025
     * - decoding: unused
1026
     */
1027
    float dark_masking;
1028
    
1029
    
1030
    /* for binary compatibility */
1031
    int unused;
1032
    
1033
    /**
1034
     * idct algorithm, see FF_IDCT_* below.
1035
     * - encoding: set by user
1036
     * - decoding: set by user
1037
     */
1038
    int idct_algo;
1039
#define FF_IDCT_AUTO         0
1040
#define FF_IDCT_INT          1
1041
#define FF_IDCT_SIMPLE       2
1042
#define FF_IDCT_SIMPLEMMX    3
1043
#define FF_IDCT_LIBMPEG2MMX  4
1044
#define FF_IDCT_PS2          5
1045
#define FF_IDCT_MLIB         6
1046
#define FF_IDCT_ARM          7
1047
#define FF_IDCT_ALTIVEC      8
1048
#define FF_IDCT_SH4          9
1049
#define FF_IDCT_SIMPLEARM    10
1050

    
1051
    /**
1052
     * slice count.
1053
     * - encoding: set by lavc
1054
     * - decoding: set by user (or 0)
1055
     */
1056
    int slice_count;
1057
    /**
1058
     * slice offsets in the frame in bytes.
1059
     * - encoding: set/allocated by lavc
1060
     * - decoding: set/allocated by user (or NULL)
1061
     */
1062
    int *slice_offset;
1063

    
1064
    /**
1065
     * error concealment flags.
1066
     * - encoding: unused
1067
     * - decoding: set by user
1068
     */
1069
    int error_concealment;
1070
#define FF_EC_GUESS_MVS   1
1071
#define FF_EC_DEBLOCK     2
1072

    
1073
    /**
1074
     * dsp_mask could be add used to disable unwanted CPU features
1075
     * CPU features (i.e. MMX, SSE. ...)
1076
     *
1077
     * with FORCE flag you may instead enable given CPU features
1078
     * (Dangerous: usable in case of misdetection, improper usage however will
1079
     * result into program crash)
1080
     */
1081
    unsigned dsp_mask;
1082
#define FF_MM_FORCE        0x80000000 /* force usage of selected flags (OR) */
1083
    /* lower 16 bits - CPU features */
1084
#ifdef HAVE_MMX
1085
#define FF_MM_MMX        0x0001 /* standard MMX */
1086
#define FF_MM_3DNOW        0x0004 /* AMD 3DNOW */
1087
#define FF_MM_MMXEXT        0x0002 /* SSE integer functions or AMD MMX ext */
1088
#define FF_MM_SSE        0x0008 /* SSE functions */
1089
#define FF_MM_SSE2        0x0010 /* PIV SSE2 functions */
1090
#endif /* HAVE_MMX */
1091

    
1092
    /**
1093
     * bits per sample/pixel from the demuxer (needed for huffyuv).
1094
     * - encoding: set by lavc
1095
     * - decoding: set by user
1096
     */
1097
     int bits_per_sample;
1098
    
1099
    /**
1100
     * prediction method (needed for huffyuv).
1101
     * - encoding: set by user
1102
     * - decoding: unused
1103
     */
1104
     int prediction_method;
1105
#define FF_PRED_LEFT   0
1106
#define FF_PRED_PLANE  1
1107
#define FF_PRED_MEDIAN 2
1108
    
1109
    /**
1110
     * sample aspect ratio (0 if unknown).
1111
     * numerator and denominator must be relative prime and smaller then 256 for some video standards
1112
     * - encoding: set by user.
1113
     * - decoding: set by lavc.
1114
     */
1115
    AVRational sample_aspect_ratio;
1116

    
1117
    /**
1118
     * the picture in the bitstream.
1119
     * - encoding: set by lavc
1120
     * - decoding: set by lavc
1121
     */
1122
    AVFrame *coded_frame;
1123

    
1124
    /**
1125
     * debug.
1126
     * - encoding: set by user.
1127
     * - decoding: set by user.
1128
     */
1129
    int debug;
1130
#define FF_DEBUG_PICT_INFO 1
1131
#define FF_DEBUG_RC        2
1132
#define FF_DEBUG_BITSTREAM 4
1133
#define FF_DEBUG_MB_TYPE   8
1134
#define FF_DEBUG_QP        16
1135
#define FF_DEBUG_MV        32
1136
#define FF_DEBUG_VIS_MV    0x00000040
1137
#define FF_DEBUG_SKIP      0x00000080
1138
#define FF_DEBUG_STARTCODE 0x00000100
1139
#define FF_DEBUG_PTS       0x00000200
1140
#define FF_DEBUG_ER        0x00000400
1141
#define FF_DEBUG_MMCO      0x00000800
1142
#define FF_DEBUG_BUGS      0x00001000
1143
#define FF_DEBUG_VIS_QP    0x00002000
1144
#define FF_DEBUG_VIS_MB_TYPE 0x00004000
1145
    
1146
    /**
1147
     * error.
1148
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1149
     * - decoding: unused
1150
     */
1151
    uint64_t error[4];
1152
    
1153
    /**
1154
     * minimum MB quantizer.
1155
     * - encoding: set by user.
1156
     * - decoding: unused
1157
     */
1158
    int mb_qmin;
1159

    
1160
    /**
1161
     * maximum MB quantizer.
1162
     * - encoding: set by user.
1163
     * - decoding: unused
1164
     */
1165
    int mb_qmax;
1166
    
1167
    /**
1168
     * motion estimation compare function.
1169
     * - encoding: set by user.
1170
     * - decoding: unused
1171
     */
1172
    int me_cmp;
1173
    /**
1174
     * subpixel motion estimation compare function.
1175
     * - encoding: set by user.
1176
     * - decoding: unused
1177
     */
1178
    int me_sub_cmp;
1179
    /**
1180
     * macroblock compare function (not supported yet).
1181
     * - encoding: set by user.
1182
     * - decoding: unused
1183
     */
1184
    int mb_cmp;
1185
#define FF_CMP_SAD  0
1186
#define FF_CMP_SSE  1
1187
#define FF_CMP_SATD 2
1188
#define FF_CMP_DCT  3
1189
#define FF_CMP_PSNR 4
1190
#define FF_CMP_BIT  5
1191
#define FF_CMP_RD   6
1192
#define FF_CMP_ZERO 7
1193
#define FF_CMP_CHROMA 256
1194
    
1195
    /**
1196
     * ME diamond size & shape.
1197
     * - encoding: set by user.
1198
     * - decoding: unused
1199
     */
1200
    int dia_size;
1201

    
1202
    /**
1203
     * amount of previous MV predictors (2a+1 x 2a+1 square).
1204
     * - encoding: set by user.
1205
     * - decoding: unused
1206
     */
1207
    int last_predictor_count;
1208

    
1209
    /**
1210
     * pre pass for motion estimation.
1211
     * - encoding: set by user.
1212
     * - decoding: unused
1213
     */
1214
    int pre_me;
1215

    
1216
    /**
1217
     * motion estimation pre pass compare function.
1218
     * - encoding: set by user.
1219
     * - decoding: unused
1220
     */
1221
    int me_pre_cmp;
1222

    
1223
    /**
1224
     * ME pre pass diamond size & shape.
1225
     * - encoding: set by user.
1226
     * - decoding: unused
1227
     */
1228
    int pre_dia_size;
1229

    
1230
    /**
1231
     * subpel ME quality.
1232
     * - encoding: set by user.
1233
     * - decoding: unused
1234
     */
1235
    int me_subpel_quality;
1236

    
1237
    /**
1238
     * callback to negotiate the pixelFormat.
1239
     * @param fmt is the list of formats which are supported by the codec,
1240
     * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1241
     * the first is allways the native one
1242
     * @return the choosen format
1243
     * - encoding: unused
1244
     * - decoding: set by user, if not set then the native format will always be choosen
1245
     */
1246
    enum PixelFormat (*get_format)(struct AVCodecContext *s, enum PixelFormat * fmt);
1247

    
1248
    /**
1249
     * DTG active format information (additionnal aspect ratio
1250
     * information only used in DVB MPEG2 transport streams). 0 if
1251
     * not set.
1252
     * 
1253
     * - encoding: unused.
1254
     * - decoding: set by decoder 
1255
     */
1256
    int dtg_active_format;
1257
#define FF_DTG_AFD_SAME         8
1258
#define FF_DTG_AFD_4_3          9
1259
#define FF_DTG_AFD_16_9         10
1260
#define FF_DTG_AFD_14_9         11
1261
#define FF_DTG_AFD_4_3_SP_14_9  13
1262
#define FF_DTG_AFD_16_9_SP_14_9 14
1263
#define FF_DTG_AFD_SP_4_3       15
1264

    
1265
    /**
1266
     * Maximum motion estimation search range in subpel units.
1267
     * if 0 then no limit
1268
     * 
1269
     * - encoding: set by user.
1270
     * - decoding: unused.
1271
     */
1272
    int me_range;
1273

    
1274
    /**
1275
     * frame_rate_base.
1276
     * for variable fps this is 1
1277
     * - encoding: set by user.
1278
     * - decoding: set by lavc.
1279
     * @todo move this after frame_rate
1280
     */
1281

    
1282
    int frame_rate_base;
1283
    /**
1284
     * intra quantizer bias.
1285
     * - encoding: set by user.
1286
     * - decoding: unused
1287
     */
1288
    int intra_quant_bias;
1289
#define FF_DEFAULT_QUANT_BIAS 999999
1290
    
1291
    /**
1292
     * inter quantizer bias.
1293
     * - encoding: set by user.
1294
     * - decoding: unused
1295
     */
1296
    int inter_quant_bias;
1297

    
1298
    /**
1299
     * color table ID.
1300
     * - encoding: unused.
1301
     * - decoding: which clrtable should be used for 8bit RGB images
1302
     *             table have to be stored somewhere FIXME
1303
     */
1304
    int color_table_id;
1305
    
1306
    /**
1307
     * internal_buffer count. 
1308
     * Dont touch, used by lavc default_get_buffer()
1309
     */
1310
    int internal_buffer_count;
1311
    
1312
    /**
1313
     * internal_buffers. 
1314
     * Dont touch, used by lavc default_get_buffer()
1315
     */
1316
    void *internal_buffer;
1317

    
1318
#define FF_LAMBDA_SHIFT 7
1319
#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1320
#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1321
#define FF_LAMBDA_MAX (256*128-1)
1322

    
1323
#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
1324
    /**
1325
     * global quality for codecs which cannot change it per frame.
1326
     * this should be proportional to MPEG1/2/4 qscale.
1327
     * - encoding: set by user.
1328
     * - decoding: unused
1329
     */
1330
    int global_quality;
1331
    
1332
#define FF_CODER_TYPE_VLC   0
1333
#define FF_CODER_TYPE_AC    1
1334
    /**
1335
     * coder type
1336
     * - encoding: set by user.
1337
     * - decoding: unused
1338
     */
1339
    int coder_type;
1340

    
1341
    /**
1342
     * context model
1343
     * - encoding: set by user.
1344
     * - decoding: unused
1345
     */
1346
    int context_model;
1347
    
1348
    /**
1349
     * slice flags
1350
     * - encoding: unused
1351
     * - decoding: set by user.
1352
     */
1353
    int slice_flags;
1354
#define SLICE_FLAG_CODED_ORDER    0x0001 ///< draw_horiz_band() is called in coded order instead of display
1355
#define SLICE_FLAG_ALLOW_FIELD    0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1356
#define SLICE_FLAG_ALLOW_PLANE    0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1357

    
1358
    /**
1359
     * XVideo Motion Acceleration
1360
     * - encoding: forbidden
1361
     * - decoding: set by decoder
1362
     */
1363
    int xvmc_acceleration;
1364
    
1365
    /**
1366
     * macroblock decision mode
1367
     * - encoding: set by user.
1368
     * - decoding: unused
1369
     */
1370
    int mb_decision;
1371
#define FF_MB_DECISION_SIMPLE 0        ///< uses mb_cmp
1372
#define FF_MB_DECISION_BITS   1        ///< chooses the one which needs the fewest bits
1373
#define FF_MB_DECISION_RD     2        ///< rate distoration
1374

    
1375
    /**
1376
     * custom intra quantization matrix
1377
     * - encoding: set by user, can be NULL
1378
     * - decoding: set by lavc
1379
     */
1380
    uint16_t *intra_matrix;
1381

    
1382
    /**
1383
     * custom inter quantization matrix
1384
     * - encoding: set by user, can be NULL
1385
     * - decoding: set by lavc
1386
     */
1387
    uint16_t *inter_matrix;
1388
    
1389
    /**
1390
     * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1391
     * this is used to workaround some encoder bugs
1392
     * - encoding: unused
1393
     * - decoding: set by user, will be converted to upper case by lavc during init
1394
     */
1395
    unsigned int stream_codec_tag;
1396

    
1397
    /**
1398
     * scene change detection threshold.
1399
     * 0 is default, larger means fewer detected scene changes
1400
     * - encoding: set by user.
1401
     * - decoding: unused
1402
     */
1403
    int scenechange_threshold;
1404

    
1405
    /**
1406
     * minimum lagrange multipler
1407
     * - encoding: set by user.
1408
     * - decoding: unused
1409
     */
1410
    int lmin;
1411

    
1412
    /**
1413
     * maximum lagrange multipler
1414
     * - encoding: set by user.
1415
     * - decoding: unused
1416
     */
1417
    int lmax;
1418

    
1419
    /**
1420
     * Palette control structure
1421
     * - encoding: ??? (no palette-enabled encoder yet)
1422
     * - decoding: set by user.
1423
     */
1424
    struct AVPaletteControl *palctrl;
1425

    
1426
    /**
1427
     * noise reduction strength
1428
     * - encoding: set by user.
1429
     * - decoding: unused
1430
     */
1431
    int noise_reduction;
1432
    
1433
    /**
1434
     * called at the beginning of a frame to get cr buffer for it.
1435
     * buffer type (size, hints) must be the same. lavc won't check it.
1436
     * lavc will pass previous buffer in pic, function should return
1437
     * same buffer or new buffer with old frame "painted" into it.
1438
     * if pic.data[0] == NULL must behave like get_buffer().
1439
     * - encoding: unused
1440
     * - decoding: set by lavc, user can override
1441
     */
1442
    int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
1443

    
1444
    /**
1445
     * number of bits which should be loaded into the rc buffer before decoding starts
1446
     * - encoding: set by user.
1447
     * - decoding: unused
1448
     */
1449
    int rc_initial_buffer_occupancy;
1450

    
1451
    /**
1452
     *
1453
     * - encoding: set by user.
1454
     * - decoding: unused
1455
     */
1456
    int inter_threshold;
1457

    
1458
    /**
1459
     * CODEC_FLAG2_*.
1460
     * - encoding: set by user.
1461
     * - decoding: set by user.
1462
     */
1463
    int flags2;
1464

    
1465
    /**
1466
     * simulates errors in the bitstream to test error concealment.
1467
     * - encoding: set by user.
1468
     * - decoding: unused.
1469
     */
1470
    int error_rate;
1471
} AVCodecContext;
1472

    
1473

    
1474
/**
1475
 * AVOption.
1476
 */
1477
typedef struct AVOption {
1478
    /** options' name */
1479
    const char *name; /* if name is NULL, it indicates a link to next */
1480
    /** short English text help or const struct AVOption* subpointer */
1481
    const char *help; //        const struct AVOption* sub;
1482
    /** offset to context structure where the parsed value should be stored */
1483
    int offset;
1484
    /** options' type */
1485
    int type;
1486
#define FF_OPT_TYPE_BOOL 1      ///< boolean - true,1,on  (or simply presence)
1487
#define FF_OPT_TYPE_DOUBLE 2    ///< double
1488
#define FF_OPT_TYPE_INT 3       ///< integer
1489
#define FF_OPT_TYPE_STRING 4    ///< string (finished with \0)
1490
#define FF_OPT_TYPE_MASK 0x1f        ///< mask for types - upper bits are various flags
1491
//#define FF_OPT_TYPE_EXPERT 0x20 // flag for expert option
1492
#define FF_OPT_TYPE_FLAG (FF_OPT_TYPE_BOOL | 0x40)
1493
#define FF_OPT_TYPE_RCOVERRIDE (FF_OPT_TYPE_STRING | 0x80)
1494
    /** min value  (min == max   ->  no limits) */
1495
    double min;
1496
    /** maximum value for double/int */
1497
    double max;
1498
    /** default boo [0,1]l/double/int value */
1499
    double defval;
1500
    /**
1501
     * default string value (with optional semicolon delimited extra option-list
1502
     * i.e.   option1;option2;option3
1503
     * defval might select other then first argument as default
1504
     */
1505
    const char *defstr;
1506
#define FF_OPT_MAX_DEPTH 10
1507
} AVOption;
1508

    
1509
/**
1510
 * Parse option(s) and sets fields in passed structure
1511
 * @param strct        structure where the parsed results will be written
1512
 * @param list  list with AVOptions
1513
 * @param opts        string with options for parsing
1514
 */
1515
int avoption_parse(void* strct, const AVOption* list, const char* opts);
1516

    
1517

    
1518
/**
1519
 * AVCodec.
1520
 */
1521
typedef struct AVCodec {
1522
    const char *name;
1523
    enum CodecType type;
1524
    int id;
1525
    int priv_data_size;
1526
    int (*init)(AVCodecContext *);
1527
    int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
1528
    int (*close)(AVCodecContext *);
1529
    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
1530
                  uint8_t *buf, int buf_size);
1531
    int capabilities;
1532
    const AVOption *options;
1533
    struct AVCodec *next;
1534
    void (*flush)(AVCodecContext *);
1535
} AVCodec;
1536

    
1537
/**
1538
 * four components are given, that's all.
1539
 * the last component is alpha
1540
 */
1541
typedef struct AVPicture {
1542
    uint8_t *data[4];
1543
    int linesize[4];       ///< number of bytes per line
1544
} AVPicture;
1545

    
1546
/**
1547
 * AVPaletteControl
1548
 * This structure defines a method for communicating palette changes
1549
 * between and demuxer and a decoder.
1550
 */
1551
#define AVPALETTE_SIZE 1024
1552
#define AVPALETTE_COUNT 256
1553
typedef struct AVPaletteControl {
1554

    
1555
    /* demuxer sets this to 1 to indicate the palette has changed;
1556
     * decoder resets to 0 */
1557
    int palette_changed;
1558

    
1559
    /* 4-byte ARGB palette entries, stored in native byte order; note that
1560
     * the individual palette components should be on a 8-bit scale; if
1561
     * the palette data comes from a IBM VGA native format, the component
1562
     * data is probably 6 bits in size and needs to be scaled */
1563
    unsigned int palette[AVPALETTE_COUNT];
1564

    
1565
} AVPaletteControl;
1566

    
1567
extern AVCodec ac3_encoder;
1568
extern AVCodec mp2_encoder;
1569
extern AVCodec mp3lame_encoder;
1570
extern AVCodec oggvorbis_encoder;
1571
extern AVCodec faac_encoder;
1572
extern AVCodec mpeg1video_encoder;
1573
extern AVCodec mpeg2video_encoder;
1574
extern AVCodec h263_encoder;
1575
extern AVCodec h263p_encoder;
1576
extern AVCodec flv_encoder;
1577
extern AVCodec rv10_encoder;
1578
extern AVCodec rv20_encoder;
1579
extern AVCodec mjpeg_encoder;
1580
extern AVCodec ljpeg_encoder;
1581
extern AVCodec mpeg4_encoder;
1582
extern AVCodec msmpeg4v1_encoder;
1583
extern AVCodec msmpeg4v2_encoder;
1584
extern AVCodec msmpeg4v3_encoder;
1585
extern AVCodec wmv1_encoder;
1586
extern AVCodec wmv2_encoder;
1587
extern AVCodec huffyuv_encoder;
1588
extern AVCodec h264_encoder;
1589
extern AVCodec asv1_encoder;
1590
extern AVCodec asv2_encoder;
1591
extern AVCodec vcr1_encoder;
1592
extern AVCodec ffv1_encoder;
1593
extern AVCodec mdec_encoder;
1594

    
1595
extern AVCodec h263_decoder;
1596
extern AVCodec mpeg4_decoder;
1597
extern AVCodec msmpeg4v1_decoder;
1598
extern AVCodec msmpeg4v2_decoder;
1599
extern AVCodec msmpeg4v3_decoder;
1600
extern AVCodec wmv1_decoder;
1601
extern AVCodec wmv2_decoder;
1602
extern AVCodec mpeg1video_decoder;
1603
extern AVCodec mpeg2video_decoder;
1604
extern AVCodec mpegvideo_decoder;
1605
extern AVCodec mpeg_xvmc_decoder;
1606
extern AVCodec h263i_decoder;
1607
extern AVCodec flv_decoder;
1608
extern AVCodec rv10_decoder;
1609
extern AVCodec rv20_decoder;
1610
extern AVCodec svq1_decoder;
1611
extern AVCodec svq3_decoder;
1612
extern AVCodec dvvideo_decoder;
1613
extern AVCodec wmav1_decoder;
1614
extern AVCodec wmav2_decoder;
1615
extern AVCodec mjpeg_decoder;
1616
extern AVCodec mjpegb_decoder;
1617
extern AVCodec sp5x_decoder;
1618
extern AVCodec mp2_decoder;
1619
extern AVCodec mp3_decoder;
1620
extern AVCodec mace3_decoder;
1621
extern AVCodec mace6_decoder;
1622
extern AVCodec huffyuv_decoder;
1623
extern AVCodec oggvorbis_decoder;
1624
extern AVCodec cyuv_decoder;
1625
extern AVCodec h264_decoder;
1626
extern AVCodec indeo3_decoder;
1627
extern AVCodec vp3_decoder;
1628
extern AVCodec theora_decoder;
1629
extern AVCodec amr_nb_decoder;
1630
extern AVCodec amr_nb_encoder;
1631
extern AVCodec amr_wb_encoder;
1632
extern AVCodec amr_wb_decoder;
1633
extern AVCodec aac_decoder;
1634
extern AVCodec mpeg4aac_decoder;
1635
extern AVCodec asv1_decoder;
1636
extern AVCodec asv2_decoder;
1637
extern AVCodec vcr1_decoder;
1638
extern AVCodec cljr_decoder;
1639
extern AVCodec ffv1_decoder;
1640
extern AVCodec fourxm_decoder;
1641
extern AVCodec mdec_decoder;
1642
extern AVCodec roq_decoder;
1643
extern AVCodec interplay_video_decoder;
1644
extern AVCodec xan_wc3_decoder;
1645
extern AVCodec rpza_decoder;
1646
extern AVCodec cinepak_decoder;
1647
extern AVCodec msrle_decoder;
1648
extern AVCodec msvideo1_decoder;
1649
extern AVCodec vqa_decoder;
1650
extern AVCodec idcin_decoder;
1651
extern AVCodec eightbps_decoder;
1652
extern AVCodec smc_decoder;
1653
extern AVCodec flic_decoder;
1654
extern AVCodec truemotion1_decoder;
1655
extern AVCodec ra_144_decoder;
1656
extern AVCodec ra_288_decoder;
1657
extern AVCodec roq_dpcm_decoder;
1658
extern AVCodec interplay_dpcm_decoder;
1659
extern AVCodec xan_dpcm_decoder;
1660

    
1661
/* pcm codecs */
1662
#define PCM_CODEC(id, name) \
1663
extern AVCodec name ## _decoder; \
1664
extern AVCodec name ## _encoder
1665

    
1666
PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
1667
PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
1668
PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
1669
PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
1670
PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
1671
PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
1672
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
1673
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
1674

    
1675
/* adpcm codecs */
1676

    
1677
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
1678
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
1679
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
1680
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
1681
PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
1682
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
1683
PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
1684
PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
1685
PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
1686

    
1687
#undef PCM_CODEC
1688

    
1689
/* dummy raw video codec */
1690
extern AVCodec rawvideo_encoder;
1691
extern AVCodec rawvideo_decoder;
1692

    
1693
/* the following codecs use external GPL libs */
1694
extern AVCodec ac3_decoder;
1695

    
1696
/* resample.c */
1697

    
1698
struct ReSampleContext;
1699

    
1700
typedef struct ReSampleContext ReSampleContext;
1701

    
1702
ReSampleContext *audio_resample_init(int output_channels, int input_channels, 
1703
                                     int output_rate, int input_rate);
1704
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
1705
void audio_resample_close(ReSampleContext *s);
1706

    
1707
/* YUV420 format is assumed ! */
1708

    
1709
struct ImgReSampleContext;
1710

    
1711
typedef struct ImgReSampleContext ImgReSampleContext;
1712

    
1713
ImgReSampleContext *img_resample_init(int output_width, int output_height,
1714
                                      int input_width, int input_height);
1715

    
1716
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
1717
                                      int iwidth, int iheight,
1718
                                      int topBand, int bottomBand,
1719
                                      int leftBand, int rightBand);
1720

    
1721
void img_resample(ImgReSampleContext *s, 
1722
                  AVPicture *output, const AVPicture *input);
1723

    
1724
void img_resample_close(ImgReSampleContext *s);
1725

    
1726
/**
1727
 * Allocate memory for a picture.  Call avpicture_free to free it.
1728
 *
1729
 * @param picture the picture to be filled in.
1730
 * @param pix_fmt the format of the picture.
1731
 * @param width the width of the picture.
1732
 * @param height the height of the picture.
1733
 * @return 0 if successful, -1 if not.
1734
 */
1735
int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
1736

    
1737
/* Free a picture previously allocated by avpicture_alloc. */
1738
void avpicture_free(AVPicture *picture);
1739

    
1740
int avpicture_fill(AVPicture *picture, uint8_t *ptr,
1741
                   int pix_fmt, int width, int height);
1742
int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
1743
                     unsigned char *dest, int dest_size);
1744
int avpicture_get_size(int pix_fmt, int width, int height);
1745
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
1746
const char *avcodec_get_pix_fmt_name(int pix_fmt);
1747
enum PixelFormat avcodec_get_pix_fmt(const char* name);
1748

    
1749
#define FF_LOSS_RESOLUTION  0x0001 /* loss due to resolution change */
1750
#define FF_LOSS_DEPTH       0x0002 /* loss due to color depth change */
1751
#define FF_LOSS_COLORSPACE  0x0004 /* loss due to color space conversion */
1752
#define FF_LOSS_ALPHA       0x0008 /* loss of alpha bits */
1753
#define FF_LOSS_COLORQUANT  0x0010 /* loss due to color quantization */
1754
#define FF_LOSS_CHROMA      0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
1755

    
1756
int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
1757
                             int has_alpha);
1758
int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
1759
                              int has_alpha, int *loss_ptr);
1760

    
1761
#define FF_ALPHA_TRANSP       0x0001 /* image has some totally transparent pixels */
1762
#define FF_ALPHA_SEMI_TRANSP  0x0002 /* image has some transparent pixels */
1763
int img_get_alpha_info(const AVPicture *src,
1764
                       int pix_fmt, int width, int height);
1765

    
1766
/* convert among pixel formats */
1767
int img_convert(AVPicture *dst, int dst_pix_fmt,
1768
                const AVPicture *src, int pix_fmt, 
1769
                int width, int height);
1770

    
1771
/* deinterlace a picture */
1772
int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
1773
                          int pix_fmt, int width, int height);
1774

    
1775
/* external high level API */
1776

    
1777
extern AVCodec *first_avcodec;
1778

    
1779
/* returns LIBAVCODEC_VERSION_INT constant */
1780
unsigned avcodec_version(void);
1781
/* returns LIBAVCODEC_BUILD constant */
1782
unsigned avcodec_build(void);
1783
void avcodec_init(void);
1784

    
1785
void register_avcodec(AVCodec *format);
1786
AVCodec *avcodec_find_encoder(enum CodecID id);
1787
AVCodec *avcodec_find_encoder_by_name(const char *name);
1788
AVCodec *avcodec_find_decoder(enum CodecID id);
1789
AVCodec *avcodec_find_decoder_by_name(const char *name);
1790
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
1791

    
1792
void avcodec_get_context_defaults(AVCodecContext *s);
1793
AVCodecContext *avcodec_alloc_context(void);
1794
AVFrame *avcodec_alloc_frame(void);
1795

    
1796
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
1797
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
1798
void avcodec_default_free_buffers(AVCodecContext *s);
1799

    
1800
/**
1801
 * opens / inits the AVCodecContext.
1802
 * not thread save!
1803
 */
1804
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
1805

    
1806
int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples, 
1807
                         int *frame_size_ptr,
1808
                         uint8_t *buf, int buf_size);
1809
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture, 
1810
                         int *got_picture_ptr,
1811
                         uint8_t *buf, int buf_size);
1812
int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata, 
1813
                        int *data_size_ptr,
1814
                        uint8_t *buf, int buf_size);
1815
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
1816
                         const short *samples);
1817
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
1818
                         const AVFrame *pict);
1819

    
1820
int avcodec_close(AVCodecContext *avctx);
1821

    
1822
void avcodec_register_all(void);
1823

    
1824
void avcodec_flush_buffers(AVCodecContext *avctx);
1825

    
1826
/* misc usefull functions */
1827

    
1828
/**
1829
 * returns a single letter to describe the picture type
1830
 */
1831
char av_get_pict_type_char(int pict_type);
1832

    
1833
/**
1834
 * reduce a fraction.
1835
 * this is usefull for framerate calculations
1836
 * @param max the maximum allowed for dst_nom & dst_den
1837
 * @return 1 if exact, 0 otherwise
1838
 */
1839
int av_reduce(int *dst_nom, int *dst_den, int64_t nom, int64_t den, int64_t max);
1840

    
1841
/**
1842
 * rescale a 64bit integer.
1843
 * a simple a*b/c isnt possible as it can overflow
1844
 */
1845
int64_t av_rescale(int64_t a, int b, int c);
1846

    
1847

    
1848
/**
1849
 * Interface for 0.5.0 version
1850
 *
1851
 * do not even think about it's usage for this moment
1852
 */
1853

    
1854
typedef struct {
1855
    /// compressed size used from given memory buffer
1856
    int size;
1857
    /// I/P/B frame type
1858
    int frame_type;
1859
} avc_enc_result_t;
1860

    
1861
/**
1862
 * Commands
1863
 * order can't be changed - once it was defined
1864
 */
1865
typedef enum {
1866
    // general commands
1867
    AVC_OPEN_BY_NAME = 0xACA000,
1868
    AVC_OPEN_BY_CODEC_ID,
1869
    AVC_OPEN_BY_FOURCC,
1870
    AVC_CLOSE,
1871

    
1872
    AVC_FLUSH,
1873
    // pin - struct { uint8_t* src, uint_t src_size }
1874
    // pout - struct { AVPicture* img, consumed_bytes,
1875
    AVC_DECODE,
1876
    // pin - struct { AVPicture* img, uint8_t* dest, uint_t dest_size }
1877
    // pout - uint_t used_from_dest_size
1878
    AVC_ENCODE, 
1879

    
1880
    // query/get video commands
1881
    AVC_GET_VERSION = 0xACB000,
1882
    AVC_GET_WIDTH,
1883
    AVC_GET_HEIGHT,
1884
    AVC_GET_DELAY,
1885
    AVC_GET_QUANT_TABLE,
1886
    // ...
1887

    
1888
    // query/get audio commands
1889
    AVC_GET_FRAME_SIZE = 0xABC000,
1890

    
1891
    // maybe define some simple structure which
1892
    // might be passed to the user - but they can't
1893
    // contain any codec specific parts and these
1894
    // calls are usualy necessary only few times
1895

    
1896
    // set video commands
1897
    AVC_SET_WIDTH = 0xACD000,
1898
    AVC_SET_HEIGHT,
1899

    
1900
    // set video encoding commands
1901
    AVC_SET_FRAME_RATE = 0xACD800,
1902
    AVC_SET_QUALITY,
1903
    AVC_SET_HURRY_UP,
1904

    
1905
    // set audio commands
1906
    AVC_SET_SAMPLE_RATE = 0xACE000,
1907
    AVC_SET_CHANNELS,
1908

    
1909
} avc_cmd_t;
1910

    
1911
/**
1912
 * \param handle  allocated private structure by libavcodec
1913
 *                for initialization pass NULL - will be returned pout
1914
 *                user is supposed to know nothing about its structure
1915
 * \param cmd     type of operation to be performed
1916
 * \param pint    input parameter
1917
 * \param pout    output parameter
1918
 *
1919
 * \returns  command status - eventually for query command it might return
1920
 * integer resulting value
1921
 */
1922
int avcodec(void* handle, avc_cmd_t cmd, void* pin, void* pout);
1923

    
1924
/* frame parsing */
1925
typedef struct AVCodecParserContext {
1926
    void *priv_data;
1927
    struct AVCodecParser *parser;
1928
    int64_t frame_offset; /* offset of the current frame */
1929
    int64_t cur_offset; /* current offset 
1930
                           (incremented by each av_parser_parse()) */
1931
    int64_t last_frame_offset; /* offset of the last frame */
1932
    /* video info */
1933
    int pict_type; /* XXX: put it back in AVCodecContext */
1934
    int repeat_pict; /* XXX: put it back in AVCodecContext */
1935
    int64_t pts;     /* pts of the current frame */
1936
    int64_t dts;     /* dts of the current frame */
1937

    
1938
    /* private data */
1939
    int64_t last_pts;
1940
    int64_t last_dts;
1941

    
1942
#define AV_PARSER_PTS_NB 4
1943
    int cur_frame_start_index;
1944
    int64_t cur_frame_offset[AV_PARSER_PTS_NB];
1945
    int64_t cur_frame_pts[AV_PARSER_PTS_NB];
1946
    int64_t cur_frame_dts[AV_PARSER_PTS_NB];
1947
} AVCodecParserContext;
1948

    
1949
typedef struct AVCodecParser {
1950
    int codec_ids[3]; /* several codec IDs are permitted */
1951
    int priv_data_size;
1952
    int (*parser_init)(AVCodecParserContext *s);
1953
    int (*parser_parse)(AVCodecParserContext *s, 
1954
                        AVCodecContext *avctx,
1955
                        uint8_t **poutbuf, int *poutbuf_size, 
1956
                        const uint8_t *buf, int buf_size);
1957
    void (*parser_close)(AVCodecParserContext *s);
1958
    struct AVCodecParser *next;
1959
} AVCodecParser;
1960

    
1961
extern AVCodecParser *av_first_parser;
1962

    
1963
void av_register_codec_parser(AVCodecParser *parser);
1964
AVCodecParserContext *av_parser_init(int codec_id);
1965
int av_parser_parse(AVCodecParserContext *s, 
1966
                    AVCodecContext *avctx,
1967
                    uint8_t **poutbuf, int *poutbuf_size, 
1968
                    const uint8_t *buf, int buf_size,
1969
                    int64_t pts, int64_t dts);
1970
void av_parser_close(AVCodecParserContext *s);
1971

    
1972
extern AVCodecParser mpegvideo_parser;
1973
extern AVCodecParser mpeg4video_parser;
1974
extern AVCodecParser h263_parser;
1975
extern AVCodecParser h264_parser;
1976
extern AVCodecParser mpegaudio_parser;
1977
extern AVCodecParser ac3_parser;
1978

    
1979
/* memory */
1980
void *av_malloc(unsigned int size);
1981
void *av_mallocz(unsigned int size);
1982
void *av_realloc(void *ptr, unsigned int size);
1983
void av_free(void *ptr);
1984
char *av_strdup(const char *s);
1985
void __av_freep(void **ptr);
1986
#define av_freep(p) __av_freep((void **)(p))
1987
void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
1988
/* for static data only */
1989
/* call av_free_static to release all staticaly allocated tables */
1990
void av_free_static(void);
1991
void *__av_mallocz_static(void** location, unsigned int size);
1992
#define av_mallocz_static(p, s) __av_mallocz_static((void **)(p), s)
1993

    
1994
/* add by bero : in adx.c */
1995
int is_adx(const unsigned char *buf,size_t bufsize);
1996

    
1997
void img_copy(AVPicture *dst, const AVPicture *src,
1998
              int pix_fmt, int width, int height);
1999

    
2000
/* av_log API */
2001

    
2002
#include <stdarg.h>
2003

    
2004
#define AV_LOG_ERROR 0
2005
#define AV_LOG_INFO 1
2006
#define AV_LOG_DEBUG 2
2007

    
2008
extern void av_log(AVCodecContext*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
2009
extern void av_vlog(AVCodecContext*, int level, const char *fmt, va_list);
2010
extern int av_log_get_level(void);
2011
extern void av_log_set_level(int);
2012
extern void av_log_set_callback(void (*)(AVCodecContext*, int, const char*, va_list));
2013

    
2014
#undef  AV_LOG_TRAP_PRINTF
2015
#ifdef AV_LOG_TRAP_PRINTF
2016
#define printf DO NOT USE
2017
#define fprintf DO NOT USE
2018
#undef stderr
2019
#define stderr DO NOT USE
2020
#endif
2021

    
2022
#ifdef __cplusplus
2023
}
2024
#endif
2025

    
2026
#endif /* AVCODEC_H */