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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       4698
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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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    CODEC_ID_VMDVIDEO,
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    CODEC_ID_VMDAUDIO,
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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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#define CODEC_FLAG_INTERLACED_ME  0x20000000 ///< interlaced motion estimation
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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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    /**
318
     * id.
319
     * - encoding: set by user.
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     * - decoding: set by lavc
321
     */
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    int id;
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    /**
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     * width and height in 1/16 pel
326
     * - encoding: set by user.
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     * - decoding: set by lavc
328
     */
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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\
351
     * 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)\
372
     * 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.\
380
     * - encoding: set by\
381
     * - 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.\
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     * - encoding: set by\
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     * - 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)) \
393
     * - encoding: set by lavc for coded_picture (and set by user for input)\
394
     * - decoding: set by lavc\
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     */\
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    int quality; \
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\
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    /**\
399
     * buffer age (1->was last buffer and dint change, 2->..., ...).\
400
     * set to INT_MAX if the buffer has not been used yet \
401
     * - encoding: unused\
402
     * - decoding: MUST be set by get_buffer()\
403
     */\
404
    int age;\
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\
406
    /**\
407
     * is this picture used as reference\
408
     * - encoding: unused\
409
     * - decoding: set by lavc (before get_buffer() call))\
410
     */\
411
    int reference;\
412
\
413
    /**\
414
     * QP table\
415
     * - encoding: unused\
416
     * - decoding: set by lavc\
417
     */\
418
    int8_t *qscale_table;\
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    /**\
420
     * QP store stride\
421
     * - encoding: unused\
422
     * - decoding: set by lavc\
423
     */\
424
    int qstride;\
425
\
426
    /**\
427
     * mbskip_table[mb]>=1 if MB didnt change\
428
     * stride= mb_width = (width+15)>>4\
429
     * - encoding: unused\
430
     * - decoding: set by lavc\
431
     */\
432
    uint8_t *mbskip_table;\
433
\
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    /**\
435
     * Motion vector table\
436
     * - encoding: unused\
437
     * - decoding: set by lavc\
438
     */\
439
    int16_t (*motion_val[2])[2];\
440
\
441
    /**\
442
     * Macroblock type table\
443
     * mb_type_base + mb_width + 2\
444
     * - encoding: unused\
445
     * - decoding: set by lavc\
446
     */\
447
    uint32_t *mb_type;\
448
\
449
    /**\
450
     * Macroblock size: (0->16x16, 1->8x8, 2-> 4x4, 3-> 2x2)\
451
     * - encoding: unused\
452
     * - decoding: set by lavc\
453
     */\
454
    uint8_t motion_subsample_log2;\
455
\
456
    /**\
457
     * for some private data of the user\
458
     * - encoding: unused\
459
     * - decoding: set by user\
460
     */\
461
    void *opaque;\
462
\
463
    /**\
464
     * error\
465
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
466
     * - decoding: unused\
467
     */\
468
    uint64_t error[4];\
469
\
470
    /**\
471
     * type of the buffer (to keep track of who has to dealloc data[*])\
472
     * - encoding: set by the one who allocs it\
473
     * - decoding: set by the one who allocs it\
474
     * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
475
     */\
476
    int type;\
477
    \
478
    /**\
479
     * when decoding, this signal how much the picture must be delayed.\
480
     * extra_delay = repeat_pict / (2*fps)\
481
     * - encoding: unused\
482
     * - decoding: set by lavc\
483
     */\
484
    int repeat_pict;\
485
    \
486
    /**\
487
     * \
488
     */\
489
    int qscale_type;\
490
    \
491
    /**\
492
     * The content of the picture is interlaced.\
493
     * - encoding: set by user\
494
     * - decoding: set by lavc (default 0)\
495
     */\
496
    int interlaced_frame;\
497
    \
498
    /**\
499
     * if the content is interlaced, is top field displayed first.\
500
     * - encoding: set by user\
501
     * - decoding: set by lavc\
502
     */\
503
    int top_field_first;\
504
    \
505
    /**\
506
     * Pan scan.\
507
     * - encoding: set by user\
508
     * - decoding: set by lavc\
509
     */\
510
    AVPanScan *pan_scan;\
511
    \
512
    /**\
513
     * tell user application that palette has changed from previous frame.\
514
     * - encoding: ??? (no palette-enabled encoder yet)\
515
     * - decoding: set by lavc (default 0)\
516
     */\
517
    int palette_has_changed;\
518
    \
519
    /**\
520
     * Codec suggestion on buffer type if != 0\
521
     * - encoding: unused\
522
     * - decoding: set by lavc (before get_buffer() call))\
523
     */\
524
    int buffer_hints;\
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526
#define FF_QSCALE_TYPE_MPEG1        0
527
#define FF_QSCALE_TYPE_MPEG2        1
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529
#define FF_BUFFER_TYPE_INTERNAL 1
530
#define FF_BUFFER_TYPE_USER     2 ///< Direct rendering buffers (image is (de)allocated by user)
531
#define FF_BUFFER_TYPE_SHARED   4 ///< buffer from somewher else, dont dealloc image (data/base)
532
#define FF_BUFFER_TYPE_COPY     8 ///< just a (modified) copy of some other buffer, dont dealloc anything
533

    
534

    
535
#define FF_I_TYPE 1 // Intra
536
#define FF_P_TYPE 2 // Predicted
537
#define FF_B_TYPE 3 // Bi-dir predicted
538
#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
539
#define FF_SI_TYPE 5
540
#define FF_SP_TYPE 6
541

    
542
#define FF_BUFFER_HINTS_VALID    0x01 // Buffer hints value is meaningful (if 0 ignore)
543
#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
544
#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
545
#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
546

    
547
/**
548
 * Audio Video Frame.
549
 */
550
typedef struct AVFrame {
551
    FF_COMMON_FRAME
552
} AVFrame;
553

    
554
#define DEFAULT_FRAME_RATE_BASE 1001000
555

    
556
/**
557
 * main external api structure.
558
 */
559
typedef struct AVCodecContext {
560
    /**
561
     * the average bitrate.
562
     * - encoding: set by user. unused for constant quantizer encoding
563
     * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream 
564
     */
565
    int bit_rate;
566

    
567
    /**
568
     * number of bits the bitstream is allowed to diverge from the reference.
569
     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
570
     * - encoding: set by user. unused for constant quantizer encoding
571
     * - decoding: unused
572
     */
573
    int bit_rate_tolerance; 
574

    
575
    /**
576
     * CODEC_FLAG_*.
577
     * - encoding: set by user.
578
     * - decoding: set by user.
579
     */
580
    int flags;
581

    
582
    /**
583
     * some codecs needs additionnal format info. It is stored here
584
     * - encoding: set by user. 
585
     * - decoding: set by lavc. (FIXME is this ok?)
586
     */
587
    int sub_id;
588

    
589
    /**
590
     * motion estimation algorithm used for video coding.
591
     * - encoding: MUST be set by user.
592
     * - decoding: unused
593
     */
594
    int me_method;
595

    
596
    /**
597
     * some codecs need / can use extra-data like huffman tables.
598
     * mjpeg: huffman tables
599
     * rv10: additional flags
600
     * mpeg4: global headers (they can be in the bitstream or here)
601
     * - encoding: set/allocated/freed by lavc.
602
     * - decoding: set/allocated/freed by user.
603
     */
604
    void *extradata;
605
    int extradata_size;
606
    
607
    /* video only */
608
    /**
609
     * frames per sec multiplied by frame_rate_base.
610
     * for variable fps this is the precission, so if the timestamps 
611
     * can be specified in msec precssion then this is 1000*frame_rate_base
612
     * - encoding: MUST be set by user
613
     * - decoding: set by lavc. 0 or the frame_rate if available
614
     */
615
    int frame_rate;
616
    
617
    /**
618
     * width / height.
619
     * - encoding: MUST be set by user. 
620
     * - decoding: set by user if known, codec should override / dynamically change if needed
621
     */
622
    int width, height;
623
    
624
#define FF_ASPECT_SQUARE 1
625
#define FF_ASPECT_4_3_625 2
626
#define FF_ASPECT_4_3_525 3
627
#define FF_ASPECT_16_9_625 4
628
#define FF_ASPECT_16_9_525 5
629
#define FF_ASPECT_EXTENDED 15
630

    
631
    /**
632
     * the number of pictures in a group of pitures, or 0 for intra_only.
633
     * - encoding: set by user.
634
     * - decoding: unused
635
     */
636
    int gop_size;
637

    
638
    /**
639
     * pixel format, see PIX_FMT_xxx.
640
     * - encoding: FIXME: used by ffmpeg to decide whether an pix_fmt
641
     *                    conversion is in order. This only works for
642
     *                    codecs with one supported pix_fmt, we should
643
     *                    do something for a generic case as well.
644
     * - decoding: set by lavc.
645
     */
646
    enum PixelFormat pix_fmt;
647
 
648
    /**
649
     * Frame rate emulation. If not zero lower layer (i.e. format handler) 
650
     * has to read frames at native frame rate.
651
     * - encoding: set by user.
652
     * - decoding: unused.
653
     */
654
    int rate_emu;
655
       
656
    /**
657
     * if non NULL, 'draw_horiz_band' is called by the libavcodec
658
     * decoder to draw an horizontal band. It improve cache usage. Not
659
     * all codecs can do that. You must check the codec capabilities
660
     * before
661
     * - encoding: unused
662
     * - decoding: set by user.
663
     * @param height the height of the slice
664
     * @param y the y position of the slice
665
     * @param type 1->top field, 2->bottom field, 3->frame
666
     * @param offset offset into the AVFrame.data from which the slice should be read
667
     */
668
    void (*draw_horiz_band)(struct AVCodecContext *s,
669
                            const AVFrame *src, int offset[4],
670
                            int y, int type, int height);
671

    
672
    /* audio only */
673
    int sample_rate; ///< samples per sec 
674
    int channels;
675
    int sample_fmt;  ///< sample format, currenly unused 
676

    
677
    /* the following data should not be initialized */
678
    int frame_size;     ///< in samples, initialized when calling 'init' 
679
    int frame_number;   ///< audio or video frame number 
680
    int real_pict_num;  ///< returns the real picture number of previous encoded frame 
681
    
682
    /**
683
     * number of frames the decoded output will be delayed relative to 
684
     * the encoded input.
685
     * - encoding: set by lavc.
686
     * - decoding: unused
687
     */
688
    int delay;
689
    
690
    /* - encoding parameters */
691
    float qcompress;  ///< amount of qscale change between easy & hard scenes (0.0-1.0)
692
    float qblur;      ///< amount of qscale smoothing over time (0.0-1.0) 
693
    
694
    /**
695
     * minimum quantizer.
696
     * - encoding: set by user.
697
     * - decoding: unused
698
     */
699
    int qmin;
700

    
701
    /**
702
     * maximum quantizer.
703
     * - encoding: set by user.
704
     * - decoding: unused
705
     */
706
    int qmax;
707

    
708
    /**
709
     * maximum quantizer difference etween frames.
710
     * - encoding: set by user.
711
     * - decoding: unused
712
     */
713
    int max_qdiff;
714

    
715
    /**
716
     * maximum number of b frames between non b frames.
717
     * note: the output will be delayed by max_b_frames+1 relative to the input
718
     * - encoding: set by user.
719
     * - decoding: unused
720
     */
721
    int max_b_frames;
722

    
723
    /**
724
     * qscale factor between ip and b frames.
725
     * - encoding: set by user.
726
     * - decoding: unused
727
     */
728
    float b_quant_factor;
729
    
730
    /** obsolete FIXME remove */
731
    int rc_strategy;
732
    int b_frame_strategy;
733

    
734
    /**
735
     * hurry up amount.
736
     * - encoding: unused
737
     * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
738
     */
739
    int hurry_up;
740
    
741
    struct AVCodec *codec;
742
    
743
    void *priv_data;
744

    
745
    /* unused, FIXME remove*/
746
    int rtp_mode;
747
    
748
    int rtp_payload_size;   /* The size of the RTP payload, the coder will  */
749
                            /* do it's best to deliver a chunk with size    */
750
                            /* below rtp_payload_size, the chunk will start */
751
                            /* with a start code on some codecs like H.263  */
752
                            /* This doesn't take account of any particular  */
753
                            /* headers inside the transmited RTP payload    */
754

    
755
    
756
    /* The RTP callcack: This function is called  */
757
    /* every time the encoder as a packet to send */
758
    /* Depends on the encoder if the data starts  */
759
    /* with a Start Code (it should) H.263 does   */
760
    void (*rtp_callback)(void *data, int size, int packet_number); 
761

    
762
    /* statistics, used for 2-pass encoding */
763
    int mv_bits;
764
    int header_bits;
765
    int i_tex_bits;
766
    int p_tex_bits;
767
    int i_count;
768
    int p_count;
769
    int skip_count;
770
    int misc_bits;
771
    
772
    /**
773
     * number of bits used for the previously encoded frame.
774
     * - encoding: set by lavc
775
     * - decoding: unused
776
     */
777
    int frame_bits;
778

    
779
    /**
780
     * private data of the user, can be used to carry app specific stuff.
781
     * - encoding: set by user
782
     * - decoding: set by user
783
     */
784
    void *opaque;
785

    
786
    char codec_name[32];
787
    enum CodecType codec_type; /* see CODEC_TYPE_xxx */
788
    enum CodecID codec_id; /* see CODEC_ID_xxx */
789
    
790
    /**
791
     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
792
     * this is used to workaround some encoder bugs
793
     * - encoding: set by user, if not then the default based on codec_id will be used
794
     * - decoding: set by user, will be converted to upper case by lavc during init
795
     */
796
    unsigned int codec_tag;
797
    
798
    /**
799
     * workaround bugs in encoders which sometimes cannot be detected automatically.
800
     * - encoding: unused
801
     * - decoding: set by user
802
     */
803
    int workaround_bugs;
804
#define FF_BUG_AUTODETECT       1  ///< autodetection
805
#define FF_BUG_OLD_MSMPEG4      2
806
#define FF_BUG_XVID_ILACE       4
807
#define FF_BUG_UMP4             8
808
#define FF_BUG_NO_PADDING       16
809
#define FF_BUG_AC_VLC           0  ///< will be removed, libavcodec can now handle these non compliant files by default
810
#define FF_BUG_QPEL_CHROMA      64
811
#define FF_BUG_STD_QPEL         128
812
#define FF_BUG_QPEL_CHROMA2     256
813
#define FF_BUG_DIRECT_BLOCKSIZE 512
814
#define FF_BUG_EDGE             1024
815
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
816
        
817
    /**
818
     * luma single coeff elimination threshold.
819
     * - encoding: set by user
820
     * - decoding: unused
821
     */
822
    int luma_elim_threshold;
823
    
824
    /**
825
     * chroma single coeff elimination threshold.
826
     * - encoding: set by user
827
     * - decoding: unused
828
     */
829
    int chroma_elim_threshold;
830
    
831
    /**
832
     * strictly follow the std (MPEG4, ...).
833
     * - encoding: set by user
834
     * - decoding: unused
835
     */
836
    int strict_std_compliance;
837
    
838
    /**
839
     * qscale offset between ip and b frames.
840
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
841
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
842
     * - encoding: set by user.
843
     * - decoding: unused
844
     */
845
    float b_quant_offset;
846
    
847
    /**
848
     * error resilience higher values will detect more errors but may missdetect
849
     * some more or less valid parts as errors.
850
     * - encoding: unused
851
     * - decoding: set by user
852
     */
853
    int error_resilience;
854
#define FF_ER_CAREFULL        1
855
#define FF_ER_COMPLIANT       2
856
#define FF_ER_AGGRESSIVE      3
857
#define FF_ER_VERY_AGGRESSIVE 4
858
    
859
    /**
860
     * called at the beginning of each frame to get a buffer for it.
861
     * if pic.reference is set then the frame will be read later by lavc
862
     * width and height should be rounded up to the next multiple of 16
863
     * - encoding: unused
864
     * - decoding: set by lavc, user can override
865
     */
866
    int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
867
    
868
    /**
869
     * called to release buffers which where allocated with get_buffer.
870
     * a released buffer can be reused in get_buffer()
871
     * pic.data[*] must be set to NULL
872
     * - encoding: unused
873
     * - decoding: set by lavc, user can override
874
     */
875
    void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
876

    
877
    /**
878
     * is 1 if the decoded stream contains b frames, 0 otherwise.
879
     * - encoding: unused
880
     * - decoding: set by lavc
881
     */
882
    int has_b_frames;
883
    
884
    int block_align; ///< used by some WAV based audio codecs
885
    
886
    int parse_only; /* - decoding only: if true, only parsing is done
887
                       (function avcodec_parse_frame()). The frame
888
                       data is returned. Only MPEG codecs support this now. */
889
    
890
    /**
891
     * 0-> h263 quant 1-> mpeg quant.
892
     * - encoding: set by user.
893
     * - decoding: unused
894
     */
895
    int mpeg_quant;
896
    
897
    /**
898
     * pass1 encoding statistics output buffer.
899
     * - encoding: set by lavc
900
     * - decoding: unused
901
     */
902
    char *stats_out;
903
    
904
    /**
905
     * pass2 encoding statistics input buffer.
906
     * concatenated stuff from stats_out of pass1 should be placed here
907
     * - encoding: allocated/set/freed by user
908
     * - decoding: unused
909
     */
910
    char *stats_in;
911
    
912
    /**
913
     * ratecontrol qmin qmax limiting method.
914
     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
915
     * - encoding: set by user.
916
     * - decoding: unused
917
     */
918
    float rc_qsquish;
919

    
920
    float rc_qmod_amp;
921
    int rc_qmod_freq;
922
    
923
    /**
924
     * ratecontrol override, see RcOverride.
925
     * - encoding: allocated/set/freed by user.
926
     * - decoding: unused
927
     */
928
    RcOverride *rc_override;
929
    int rc_override_count;
930
    
931
    /**
932
     * rate control equation.
933
     * - encoding: set by user
934
     * - decoding: unused
935
     */
936
    char *rc_eq;
937
    
938
    /**
939
     * maximum bitrate.
940
     * - encoding: set by user.
941
     * - decoding: unused
942
     */
943
    int rc_max_rate;
944
    
945
    /**
946
     * minimum bitrate.
947
     * - encoding: set by user.
948
     * - decoding: unused
949
     */
950
    int rc_min_rate;
951
    
952
    /**
953
     * decoder bitstream buffer size.
954
     * - encoding: set by user.
955
     * - decoding: unused
956
     */
957
    int rc_buffer_size;
958
    float rc_buffer_aggressivity;
959

    
960
    /**
961
     * qscale factor between p and i frames.
962
     * - encoding: set by user.
963
     * - decoding: unused
964
     */
965
    float i_quant_factor;
966
    
967
    /**
968
     * qscale offset between p and i frames.
969
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
970
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
971
     * - encoding: set by user.
972
     * - decoding: unused
973
     */
974
    float i_quant_offset;
975
    
976
    /**
977
     * initial complexity for pass1 ratecontrol.
978
     * - encoding: set by user.
979
     * - decoding: unused
980
     */
981
    float rc_initial_cplx;
982

    
983
    /**
984
     * dct algorithm, see FF_DCT_* below.
985
     * - encoding: set by user
986
     * - decoding: unused
987
     */
988
    int dct_algo;
989
#define FF_DCT_AUTO    0
990
#define FF_DCT_FASTINT 1
991
#define FF_DCT_INT     2
992
#define FF_DCT_MMX     3
993
#define FF_DCT_MLIB    4
994
#define FF_DCT_ALTIVEC 5
995
#define FF_DCT_FAAN    6
996
    
997
    /**
998
     * luminance masking (0-> disabled).
999
     * - encoding: set by user
1000
     * - decoding: unused
1001
     */
1002
    float lumi_masking;
1003
    
1004
    /**
1005
     * temporary complexity masking (0-> disabled).
1006
     * - encoding: set by user
1007
     * - decoding: unused
1008
     */
1009
    float temporal_cplx_masking;
1010
    
1011
    /**
1012
     * spatial complexity masking (0-> disabled).
1013
     * - encoding: set by user
1014
     * - decoding: unused
1015
     */
1016
    float spatial_cplx_masking;
1017
    
1018
    /**
1019
     * p block masking (0-> disabled).
1020
     * - encoding: set by user
1021
     * - decoding: unused
1022
     */
1023
    float p_masking;
1024

    
1025
    /**
1026
     * darkness masking (0-> disabled).
1027
     * - encoding: set by user
1028
     * - decoding: unused
1029
     */
1030
    float dark_masking;
1031
    
1032
    
1033
    /* for binary compatibility */
1034
    int unused;
1035
    
1036
    /**
1037
     * idct algorithm, see FF_IDCT_* below.
1038
     * - encoding: set by user
1039
     * - decoding: set by user
1040
     */
1041
    int idct_algo;
1042
#define FF_IDCT_AUTO         0
1043
#define FF_IDCT_INT          1
1044
#define FF_IDCT_SIMPLE       2
1045
#define FF_IDCT_SIMPLEMMX    3
1046
#define FF_IDCT_LIBMPEG2MMX  4
1047
#define FF_IDCT_PS2          5
1048
#define FF_IDCT_MLIB         6
1049
#define FF_IDCT_ARM          7
1050
#define FF_IDCT_ALTIVEC      8
1051
#define FF_IDCT_SH4          9
1052
#define FF_IDCT_SIMPLEARM    10
1053

    
1054
    /**
1055
     * slice count.
1056
     * - encoding: set by lavc
1057
     * - decoding: set by user (or 0)
1058
     */
1059
    int slice_count;
1060
    /**
1061
     * slice offsets in the frame in bytes.
1062
     * - encoding: set/allocated by lavc
1063
     * - decoding: set/allocated by user (or NULL)
1064
     */
1065
    int *slice_offset;
1066

    
1067
    /**
1068
     * error concealment flags.
1069
     * - encoding: unused
1070
     * - decoding: set by user
1071
     */
1072
    int error_concealment;
1073
#define FF_EC_GUESS_MVS   1
1074
#define FF_EC_DEBLOCK     2
1075

    
1076
    /**
1077
     * dsp_mask could be add used to disable unwanted CPU features
1078
     * CPU features (i.e. MMX, SSE. ...)
1079
     *
1080
     * with FORCE flag you may instead enable given CPU features
1081
     * (Dangerous: usable in case of misdetection, improper usage however will
1082
     * result into program crash)
1083
     */
1084
    unsigned dsp_mask;
1085
#define FF_MM_FORCE        0x80000000 /* force usage of selected flags (OR) */
1086
    /* lower 16 bits - CPU features */
1087
#ifdef HAVE_MMX
1088
#define FF_MM_MMX        0x0001 /* standard MMX */
1089
#define FF_MM_3DNOW        0x0004 /* AMD 3DNOW */
1090
#define FF_MM_MMXEXT        0x0002 /* SSE integer functions or AMD MMX ext */
1091
#define FF_MM_SSE        0x0008 /* SSE functions */
1092
#define FF_MM_SSE2        0x0010 /* PIV SSE2 functions */
1093
#endif /* HAVE_MMX */
1094

    
1095
    /**
1096
     * bits per sample/pixel from the demuxer (needed for huffyuv).
1097
     * - encoding: set by lavc
1098
     * - decoding: set by user
1099
     */
1100
     int bits_per_sample;
1101
    
1102
    /**
1103
     * prediction method (needed for huffyuv).
1104
     * - encoding: set by user
1105
     * - decoding: unused
1106
     */
1107
     int prediction_method;
1108
#define FF_PRED_LEFT   0
1109
#define FF_PRED_PLANE  1
1110
#define FF_PRED_MEDIAN 2
1111
    
1112
    /**
1113
     * sample aspect ratio (0 if unknown).
1114
     * numerator and denominator must be relative prime and smaller then 256 for some video standards
1115
     * - encoding: set by user.
1116
     * - decoding: set by lavc.
1117
     */
1118
    AVRational sample_aspect_ratio;
1119

    
1120
    /**
1121
     * the picture in the bitstream.
1122
     * - encoding: set by lavc
1123
     * - decoding: set by lavc
1124
     */
1125
    AVFrame *coded_frame;
1126

    
1127
    /**
1128
     * debug.
1129
     * - encoding: set by user.
1130
     * - decoding: set by user.
1131
     */
1132
    int debug;
1133
#define FF_DEBUG_PICT_INFO 1
1134
#define FF_DEBUG_RC        2
1135
#define FF_DEBUG_BITSTREAM 4
1136
#define FF_DEBUG_MB_TYPE   8
1137
#define FF_DEBUG_QP        16
1138
#define FF_DEBUG_MV        32
1139
//#define FF_DEBUG_VIS_MV    0x00000040
1140
#define FF_DEBUG_SKIP      0x00000080
1141
#define FF_DEBUG_STARTCODE 0x00000100
1142
#define FF_DEBUG_PTS       0x00000200
1143
#define FF_DEBUG_ER        0x00000400
1144
#define FF_DEBUG_MMCO      0x00000800
1145
#define FF_DEBUG_BUGS      0x00001000
1146
#define FF_DEBUG_VIS_QP    0x00002000
1147
#define FF_DEBUG_VIS_MB_TYPE 0x00004000
1148
    
1149
    /**
1150
     * debug.
1151
     * - encoding: set by user.
1152
     * - decoding: set by user.
1153
     */
1154
    int debug_mv;
1155
#define FF_DEBUG_VIS_MV_P_FOR  0x00000001 //visualize forward predicted MVs of P frames
1156
#define FF_DEBUG_VIS_MV_B_FOR  0x00000002 //visualize forward predicted MVs of B frames
1157
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1158

    
1159
    /**
1160
     * error.
1161
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1162
     * - decoding: unused
1163
     */
1164
    uint64_t error[4];
1165
    
1166
    /**
1167
     * minimum MB quantizer.
1168
     * - encoding: set by user.
1169
     * - decoding: unused
1170
     */
1171
    int mb_qmin;
1172

    
1173
    /**
1174
     * maximum MB quantizer.
1175
     * - encoding: set by user.
1176
     * - decoding: unused
1177
     */
1178
    int mb_qmax;
1179
    
1180
    /**
1181
     * motion estimation compare function.
1182
     * - encoding: set by user.
1183
     * - decoding: unused
1184
     */
1185
    int me_cmp;
1186
    /**
1187
     * subpixel motion estimation compare function.
1188
     * - encoding: set by user.
1189
     * - decoding: unused
1190
     */
1191
    int me_sub_cmp;
1192
    /**
1193
     * macroblock compare function (not supported yet).
1194
     * - encoding: set by user.
1195
     * - decoding: unused
1196
     */
1197
    int mb_cmp;
1198
#define FF_CMP_SAD  0
1199
#define FF_CMP_SSE  1
1200
#define FF_CMP_SATD 2
1201
#define FF_CMP_DCT  3
1202
#define FF_CMP_PSNR 4
1203
#define FF_CMP_BIT  5
1204
#define FF_CMP_RD   6
1205
#define FF_CMP_ZERO 7
1206
#define FF_CMP_CHROMA 256
1207
    
1208
    /**
1209
     * ME diamond size & shape.
1210
     * - encoding: set by user.
1211
     * - decoding: unused
1212
     */
1213
    int dia_size;
1214

    
1215
    /**
1216
     * amount of previous MV predictors (2a+1 x 2a+1 square).
1217
     * - encoding: set by user.
1218
     * - decoding: unused
1219
     */
1220
    int last_predictor_count;
1221

    
1222
    /**
1223
     * pre pass for motion estimation.
1224
     * - encoding: set by user.
1225
     * - decoding: unused
1226
     */
1227
    int pre_me;
1228

    
1229
    /**
1230
     * motion estimation pre pass compare function.
1231
     * - encoding: set by user.
1232
     * - decoding: unused
1233
     */
1234
    int me_pre_cmp;
1235

    
1236
    /**
1237
     * ME pre pass diamond size & shape.
1238
     * - encoding: set by user.
1239
     * - decoding: unused
1240
     */
1241
    int pre_dia_size;
1242

    
1243
    /**
1244
     * subpel ME quality.
1245
     * - encoding: set by user.
1246
     * - decoding: unused
1247
     */
1248
    int me_subpel_quality;
1249

    
1250
    /**
1251
     * callback to negotiate the pixelFormat.
1252
     * @param fmt is the list of formats which are supported by the codec,
1253
     * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1254
     * the first is allways the native one
1255
     * @return the choosen format
1256
     * - encoding: unused
1257
     * - decoding: set by user, if not set then the native format will always be choosen
1258
     */
1259
    enum PixelFormat (*get_format)(struct AVCodecContext *s, enum PixelFormat * fmt);
1260

    
1261
    /**
1262
     * DTG active format information (additionnal aspect ratio
1263
     * information only used in DVB MPEG2 transport streams). 0 if
1264
     * not set.
1265
     * 
1266
     * - encoding: unused.
1267
     * - decoding: set by decoder 
1268
     */
1269
    int dtg_active_format;
1270
#define FF_DTG_AFD_SAME         8
1271
#define FF_DTG_AFD_4_3          9
1272
#define FF_DTG_AFD_16_9         10
1273
#define FF_DTG_AFD_14_9         11
1274
#define FF_DTG_AFD_4_3_SP_14_9  13
1275
#define FF_DTG_AFD_16_9_SP_14_9 14
1276
#define FF_DTG_AFD_SP_4_3       15
1277

    
1278
    /**
1279
     * Maximum motion estimation search range in subpel units.
1280
     * if 0 then no limit
1281
     * 
1282
     * - encoding: set by user.
1283
     * - decoding: unused.
1284
     */
1285
    int me_range;
1286

    
1287
    /**
1288
     * frame_rate_base.
1289
     * for variable fps this is 1
1290
     * - encoding: set by user.
1291
     * - decoding: set by lavc.
1292
     * @todo move this after frame_rate
1293
     */
1294

    
1295
    int frame_rate_base;
1296
    /**
1297
     * intra quantizer bias.
1298
     * - encoding: set by user.
1299
     * - decoding: unused
1300
     */
1301
    int intra_quant_bias;
1302
#define FF_DEFAULT_QUANT_BIAS 999999
1303
    
1304
    /**
1305
     * inter quantizer bias.
1306
     * - encoding: set by user.
1307
     * - decoding: unused
1308
     */
1309
    int inter_quant_bias;
1310

    
1311
    /**
1312
     * color table ID.
1313
     * - encoding: unused.
1314
     * - decoding: which clrtable should be used for 8bit RGB images
1315
     *             table have to be stored somewhere FIXME
1316
     */
1317
    int color_table_id;
1318
    
1319
    /**
1320
     * internal_buffer count. 
1321
     * Dont touch, used by lavc default_get_buffer()
1322
     */
1323
    int internal_buffer_count;
1324
    
1325
    /**
1326
     * internal_buffers. 
1327
     * Dont touch, used by lavc default_get_buffer()
1328
     */
1329
    void *internal_buffer;
1330

    
1331
#define FF_LAMBDA_SHIFT 7
1332
#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1333
#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1334
#define FF_LAMBDA_MAX (256*128-1)
1335

    
1336
#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
1337
    /**
1338
     * global quality for codecs which cannot change it per frame.
1339
     * this should be proportional to MPEG1/2/4 qscale.
1340
     * - encoding: set by user.
1341
     * - decoding: unused
1342
     */
1343
    int global_quality;
1344
    
1345
#define FF_CODER_TYPE_VLC   0
1346
#define FF_CODER_TYPE_AC    1
1347
    /**
1348
     * coder type
1349
     * - encoding: set by user.
1350
     * - decoding: unused
1351
     */
1352
    int coder_type;
1353

    
1354
    /**
1355
     * context model
1356
     * - encoding: set by user.
1357
     * - decoding: unused
1358
     */
1359
    int context_model;
1360
    
1361
    /**
1362
     * slice flags
1363
     * - encoding: unused
1364
     * - decoding: set by user.
1365
     */
1366
    int slice_flags;
1367
#define SLICE_FLAG_CODED_ORDER    0x0001 ///< draw_horiz_band() is called in coded order instead of display
1368
#define SLICE_FLAG_ALLOW_FIELD    0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1369
#define SLICE_FLAG_ALLOW_PLANE    0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1370

    
1371
    /**
1372
     * XVideo Motion Acceleration
1373
     * - encoding: forbidden
1374
     * - decoding: set by decoder
1375
     */
1376
    int xvmc_acceleration;
1377
    
1378
    /**
1379
     * macroblock decision mode
1380
     * - encoding: set by user.
1381
     * - decoding: unused
1382
     */
1383
    int mb_decision;
1384
#define FF_MB_DECISION_SIMPLE 0        ///< uses mb_cmp
1385
#define FF_MB_DECISION_BITS   1        ///< chooses the one which needs the fewest bits
1386
#define FF_MB_DECISION_RD     2        ///< rate distoration
1387

    
1388
    /**
1389
     * custom intra quantization matrix
1390
     * - encoding: set by user, can be NULL
1391
     * - decoding: set by lavc
1392
     */
1393
    uint16_t *intra_matrix;
1394

    
1395
    /**
1396
     * custom inter quantization matrix
1397
     * - encoding: set by user, can be NULL
1398
     * - decoding: set by lavc
1399
     */
1400
    uint16_t *inter_matrix;
1401
    
1402
    /**
1403
     * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1404
     * this is used to workaround some encoder bugs
1405
     * - encoding: unused
1406
     * - decoding: set by user, will be converted to upper case by lavc during init
1407
     */
1408
    unsigned int stream_codec_tag;
1409

    
1410
    /**
1411
     * scene change detection threshold.
1412
     * 0 is default, larger means fewer detected scene changes
1413
     * - encoding: set by user.
1414
     * - decoding: unused
1415
     */
1416
    int scenechange_threshold;
1417

    
1418
    /**
1419
     * minimum lagrange multipler
1420
     * - encoding: set by user.
1421
     * - decoding: unused
1422
     */
1423
    int lmin;
1424

    
1425
    /**
1426
     * maximum lagrange multipler
1427
     * - encoding: set by user.
1428
     * - decoding: unused
1429
     */
1430
    int lmax;
1431

    
1432
    /**
1433
     * Palette control structure
1434
     * - encoding: ??? (no palette-enabled encoder yet)
1435
     * - decoding: set by user.
1436
     */
1437
    struct AVPaletteControl *palctrl;
1438

    
1439
    /**
1440
     * noise reduction strength
1441
     * - encoding: set by user.
1442
     * - decoding: unused
1443
     */
1444
    int noise_reduction;
1445
    
1446
    /**
1447
     * called at the beginning of a frame to get cr buffer for it.
1448
     * buffer type (size, hints) must be the same. lavc won't check it.
1449
     * lavc will pass previous buffer in pic, function should return
1450
     * same buffer or new buffer with old frame "painted" into it.
1451
     * if pic.data[0] == NULL must behave like get_buffer().
1452
     * - encoding: unused
1453
     * - decoding: set by lavc, user can override
1454
     */
1455
    int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
1456

    
1457
    /**
1458
     * number of bits which should be loaded into the rc buffer before decoding starts
1459
     * - encoding: set by user.
1460
     * - decoding: unused
1461
     */
1462
    int rc_initial_buffer_occupancy;
1463

    
1464
    /**
1465
     *
1466
     * - encoding: set by user.
1467
     * - decoding: unused
1468
     */
1469
    int inter_threshold;
1470

    
1471
    /**
1472
     * CODEC_FLAG2_*.
1473
     * - encoding: set by user.
1474
     * - decoding: set by user.
1475
     */
1476
    int flags2;
1477

    
1478
    /**
1479
     * simulates errors in the bitstream to test error concealment.
1480
     * - encoding: set by user.
1481
     * - decoding: unused.
1482
     */
1483
    int error_rate;
1484
} AVCodecContext;
1485

    
1486

    
1487
/**
1488
 * AVOption.
1489
 */
1490
typedef struct AVOption {
1491
    /** options' name */
1492
    const char *name; /* if name is NULL, it indicates a link to next */
1493
    /** short English text help or const struct AVOption* subpointer */
1494
    const char *help; //        const struct AVOption* sub;
1495
    /** offset to context structure where the parsed value should be stored */
1496
    int offset;
1497
    /** options' type */
1498
    int type;
1499
#define FF_OPT_TYPE_BOOL 1      ///< boolean - true,1,on  (or simply presence)
1500
#define FF_OPT_TYPE_DOUBLE 2    ///< double
1501
#define FF_OPT_TYPE_INT 3       ///< integer
1502
#define FF_OPT_TYPE_STRING 4    ///< string (finished with \0)
1503
#define FF_OPT_TYPE_MASK 0x1f        ///< mask for types - upper bits are various flags
1504
//#define FF_OPT_TYPE_EXPERT 0x20 // flag for expert option
1505
#define FF_OPT_TYPE_FLAG (FF_OPT_TYPE_BOOL | 0x40)
1506
#define FF_OPT_TYPE_RCOVERRIDE (FF_OPT_TYPE_STRING | 0x80)
1507
    /** min value  (min == max   ->  no limits) */
1508
    double min;
1509
    /** maximum value for double/int */
1510
    double max;
1511
    /** default boo [0,1]l/double/int value */
1512
    double defval;
1513
    /**
1514
     * default string value (with optional semicolon delimited extra option-list
1515
     * i.e.   option1;option2;option3
1516
     * defval might select other then first argument as default
1517
     */
1518
    const char *defstr;
1519
#define FF_OPT_MAX_DEPTH 10
1520
} AVOption;
1521

    
1522
/**
1523
 * Parse option(s) and sets fields in passed structure
1524
 * @param strct        structure where the parsed results will be written
1525
 * @param list  list with AVOptions
1526
 * @param opts        string with options for parsing
1527
 */
1528
int avoption_parse(void* strct, const AVOption* list, const char* opts);
1529

    
1530

    
1531
/**
1532
 * AVCodec.
1533
 */
1534
typedef struct AVCodec {
1535
    const char *name;
1536
    enum CodecType type;
1537
    int id;
1538
    int priv_data_size;
1539
    int (*init)(AVCodecContext *);
1540
    int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
1541
    int (*close)(AVCodecContext *);
1542
    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
1543
                  uint8_t *buf, int buf_size);
1544
    int capabilities;
1545
    const AVOption *options;
1546
    struct AVCodec *next;
1547
    void (*flush)(AVCodecContext *);
1548
} AVCodec;
1549

    
1550
/**
1551
 * four components are given, that's all.
1552
 * the last component is alpha
1553
 */
1554
typedef struct AVPicture {
1555
    uint8_t *data[4];
1556
    int linesize[4];       ///< number of bytes per line
1557
} AVPicture;
1558

    
1559
/**
1560
 * AVPaletteControl
1561
 * This structure defines a method for communicating palette changes
1562
 * between and demuxer and a decoder.
1563
 */
1564
#define AVPALETTE_SIZE 1024
1565
#define AVPALETTE_COUNT 256
1566
typedef struct AVPaletteControl {
1567

    
1568
    /* demuxer sets this to 1 to indicate the palette has changed;
1569
     * decoder resets to 0 */
1570
    int palette_changed;
1571

    
1572
    /* 4-byte ARGB palette entries, stored in native byte order; note that
1573
     * the individual palette components should be on a 8-bit scale; if
1574
     * the palette data comes from a IBM VGA native format, the component
1575
     * data is probably 6 bits in size and needs to be scaled */
1576
    unsigned int palette[AVPALETTE_COUNT];
1577

    
1578
} AVPaletteControl;
1579

    
1580
extern AVCodec ac3_encoder;
1581
extern AVCodec mp2_encoder;
1582
extern AVCodec mp3lame_encoder;
1583
extern AVCodec oggvorbis_encoder;
1584
extern AVCodec faac_encoder;
1585
extern AVCodec mpeg1video_encoder;
1586
extern AVCodec mpeg2video_encoder;
1587
extern AVCodec h263_encoder;
1588
extern AVCodec h263p_encoder;
1589
extern AVCodec flv_encoder;
1590
extern AVCodec rv10_encoder;
1591
extern AVCodec rv20_encoder;
1592
extern AVCodec mjpeg_encoder;
1593
extern AVCodec ljpeg_encoder;
1594
extern AVCodec mpeg4_encoder;
1595
extern AVCodec msmpeg4v1_encoder;
1596
extern AVCodec msmpeg4v2_encoder;
1597
extern AVCodec msmpeg4v3_encoder;
1598
extern AVCodec wmv1_encoder;
1599
extern AVCodec wmv2_encoder;
1600
extern AVCodec huffyuv_encoder;
1601
extern AVCodec h264_encoder;
1602
extern AVCodec asv1_encoder;
1603
extern AVCodec asv2_encoder;
1604
extern AVCodec vcr1_encoder;
1605
extern AVCodec ffv1_encoder;
1606
extern AVCodec mdec_encoder;
1607

    
1608
extern AVCodec h263_decoder;
1609
extern AVCodec mpeg4_decoder;
1610
extern AVCodec msmpeg4v1_decoder;
1611
extern AVCodec msmpeg4v2_decoder;
1612
extern AVCodec msmpeg4v3_decoder;
1613
extern AVCodec wmv1_decoder;
1614
extern AVCodec wmv2_decoder;
1615
extern AVCodec mpeg1video_decoder;
1616
extern AVCodec mpeg2video_decoder;
1617
extern AVCodec mpegvideo_decoder;
1618
extern AVCodec mpeg_xvmc_decoder;
1619
extern AVCodec h263i_decoder;
1620
extern AVCodec flv_decoder;
1621
extern AVCodec rv10_decoder;
1622
extern AVCodec rv20_decoder;
1623
extern AVCodec svq1_decoder;
1624
extern AVCodec svq3_decoder;
1625
extern AVCodec dvvideo_decoder;
1626
extern AVCodec wmav1_decoder;
1627
extern AVCodec wmav2_decoder;
1628
extern AVCodec mjpeg_decoder;
1629
extern AVCodec mjpegb_decoder;
1630
extern AVCodec sp5x_decoder;
1631
extern AVCodec mp2_decoder;
1632
extern AVCodec mp3_decoder;
1633
extern AVCodec mace3_decoder;
1634
extern AVCodec mace6_decoder;
1635
extern AVCodec huffyuv_decoder;
1636
extern AVCodec oggvorbis_decoder;
1637
extern AVCodec cyuv_decoder;
1638
extern AVCodec h264_decoder;
1639
extern AVCodec indeo3_decoder;
1640
extern AVCodec vp3_decoder;
1641
extern AVCodec theora_decoder;
1642
extern AVCodec amr_nb_decoder;
1643
extern AVCodec amr_nb_encoder;
1644
extern AVCodec amr_wb_encoder;
1645
extern AVCodec amr_wb_decoder;
1646
extern AVCodec aac_decoder;
1647
extern AVCodec mpeg4aac_decoder;
1648
extern AVCodec asv1_decoder;
1649
extern AVCodec asv2_decoder;
1650
extern AVCodec vcr1_decoder;
1651
extern AVCodec cljr_decoder;
1652
extern AVCodec ffv1_decoder;
1653
extern AVCodec fourxm_decoder;
1654
extern AVCodec mdec_decoder;
1655
extern AVCodec roq_decoder;
1656
extern AVCodec interplay_video_decoder;
1657
extern AVCodec xan_wc3_decoder;
1658
extern AVCodec rpza_decoder;
1659
extern AVCodec cinepak_decoder;
1660
extern AVCodec msrle_decoder;
1661
extern AVCodec msvideo1_decoder;
1662
extern AVCodec vqa_decoder;
1663
extern AVCodec idcin_decoder;
1664
extern AVCodec eightbps_decoder;
1665
extern AVCodec smc_decoder;
1666
extern AVCodec flic_decoder;
1667
extern AVCodec vmdvideo_decoder;
1668
extern AVCodec vmdaudio_decoder;
1669
extern AVCodec truemotion1_decoder;
1670
extern AVCodec ra_144_decoder;
1671
extern AVCodec ra_288_decoder;
1672
extern AVCodec roq_dpcm_decoder;
1673
extern AVCodec interplay_dpcm_decoder;
1674
extern AVCodec xan_dpcm_decoder;
1675

    
1676
/* pcm codecs */
1677
#define PCM_CODEC(id, name) \
1678
extern AVCodec name ## _decoder; \
1679
extern AVCodec name ## _encoder
1680

    
1681
PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
1682
PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
1683
PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
1684
PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
1685
PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
1686
PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
1687
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
1688
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
1689

    
1690
/* adpcm codecs */
1691

    
1692
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
1693
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
1694
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
1695
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
1696
PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
1697
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
1698
PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
1699
PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
1700
PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
1701

    
1702
#undef PCM_CODEC
1703

    
1704
/* dummy raw video codec */
1705
extern AVCodec rawvideo_encoder;
1706
extern AVCodec rawvideo_decoder;
1707

    
1708
/* the following codecs use external GPL libs */
1709
extern AVCodec ac3_decoder;
1710

    
1711
/* resample.c */
1712

    
1713
struct ReSampleContext;
1714

    
1715
typedef struct ReSampleContext ReSampleContext;
1716

    
1717
ReSampleContext *audio_resample_init(int output_channels, int input_channels, 
1718
                                     int output_rate, int input_rate);
1719
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
1720
void audio_resample_close(ReSampleContext *s);
1721

    
1722
/* YUV420 format is assumed ! */
1723

    
1724
struct ImgReSampleContext;
1725

    
1726
typedef struct ImgReSampleContext ImgReSampleContext;
1727

    
1728
ImgReSampleContext *img_resample_init(int output_width, int output_height,
1729
                                      int input_width, int input_height);
1730

    
1731
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
1732
                                      int iwidth, int iheight,
1733
                                      int topBand, int bottomBand,
1734
                                      int leftBand, int rightBand);
1735

    
1736
void img_resample(ImgReSampleContext *s, 
1737
                  AVPicture *output, const AVPicture *input);
1738

    
1739
void img_resample_close(ImgReSampleContext *s);
1740

    
1741
/**
1742
 * Allocate memory for a picture.  Call avpicture_free to free it.
1743
 *
1744
 * @param picture the picture to be filled in.
1745
 * @param pix_fmt the format of the picture.
1746
 * @param width the width of the picture.
1747
 * @param height the height of the picture.
1748
 * @return 0 if successful, -1 if not.
1749
 */
1750
int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
1751

    
1752
/* Free a picture previously allocated by avpicture_alloc. */
1753
void avpicture_free(AVPicture *picture);
1754

    
1755
int avpicture_fill(AVPicture *picture, uint8_t *ptr,
1756
                   int pix_fmt, int width, int height);
1757
int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
1758
                     unsigned char *dest, int dest_size);
1759
int avpicture_get_size(int pix_fmt, int width, int height);
1760
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
1761
const char *avcodec_get_pix_fmt_name(int pix_fmt);
1762
enum PixelFormat avcodec_get_pix_fmt(const char* name);
1763

    
1764
#define FF_LOSS_RESOLUTION  0x0001 /* loss due to resolution change */
1765
#define FF_LOSS_DEPTH       0x0002 /* loss due to color depth change */
1766
#define FF_LOSS_COLORSPACE  0x0004 /* loss due to color space conversion */
1767
#define FF_LOSS_ALPHA       0x0008 /* loss of alpha bits */
1768
#define FF_LOSS_COLORQUANT  0x0010 /* loss due to color quantization */
1769
#define FF_LOSS_CHROMA      0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
1770

    
1771
int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
1772
                             int has_alpha);
1773
int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
1774
                              int has_alpha, int *loss_ptr);
1775

    
1776
#define FF_ALPHA_TRANSP       0x0001 /* image has some totally transparent pixels */
1777
#define FF_ALPHA_SEMI_TRANSP  0x0002 /* image has some transparent pixels */
1778
int img_get_alpha_info(const AVPicture *src,
1779
                       int pix_fmt, int width, int height);
1780

    
1781
/* convert among pixel formats */
1782
int img_convert(AVPicture *dst, int dst_pix_fmt,
1783
                const AVPicture *src, int pix_fmt, 
1784
                int width, int height);
1785

    
1786
/* deinterlace a picture */
1787
int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
1788
                          int pix_fmt, int width, int height);
1789

    
1790
/* external high level API */
1791

    
1792
extern AVCodec *first_avcodec;
1793

    
1794
/* returns LIBAVCODEC_VERSION_INT constant */
1795
unsigned avcodec_version(void);
1796
/* returns LIBAVCODEC_BUILD constant */
1797
unsigned avcodec_build(void);
1798
void avcodec_init(void);
1799

    
1800
void register_avcodec(AVCodec *format);
1801
AVCodec *avcodec_find_encoder(enum CodecID id);
1802
AVCodec *avcodec_find_encoder_by_name(const char *name);
1803
AVCodec *avcodec_find_decoder(enum CodecID id);
1804
AVCodec *avcodec_find_decoder_by_name(const char *name);
1805
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
1806

    
1807
void avcodec_get_context_defaults(AVCodecContext *s);
1808
AVCodecContext *avcodec_alloc_context(void);
1809
AVFrame *avcodec_alloc_frame(void);
1810

    
1811
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
1812
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
1813
void avcodec_default_free_buffers(AVCodecContext *s);
1814

    
1815
/**
1816
 * opens / inits the AVCodecContext.
1817
 * not thread save!
1818
 */
1819
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
1820

    
1821
int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples, 
1822
                         int *frame_size_ptr,
1823
                         uint8_t *buf, int buf_size);
1824
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture, 
1825
                         int *got_picture_ptr,
1826
                         uint8_t *buf, int buf_size);
1827
int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata, 
1828
                        int *data_size_ptr,
1829
                        uint8_t *buf, int buf_size);
1830
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
1831
                         const short *samples);
1832
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
1833
                         const AVFrame *pict);
1834

    
1835
int avcodec_close(AVCodecContext *avctx);
1836

    
1837
void avcodec_register_all(void);
1838

    
1839
void avcodec_flush_buffers(AVCodecContext *avctx);
1840

    
1841
/* misc usefull functions */
1842

    
1843
/**
1844
 * returns a single letter to describe the picture type
1845
 */
1846
char av_get_pict_type_char(int pict_type);
1847

    
1848
/**
1849
 * reduce a fraction.
1850
 * this is usefull for framerate calculations
1851
 * @param max the maximum allowed for dst_nom & dst_den
1852
 * @return 1 if exact, 0 otherwise
1853
 */
1854
int av_reduce(int *dst_nom, int *dst_den, int64_t nom, int64_t den, int64_t max);
1855

    
1856
/**
1857
 * rescale a 64bit integer.
1858
 * a simple a*b/c isnt possible as it can overflow
1859
 */
1860
int64_t av_rescale(int64_t a, int b, int c);
1861

    
1862

    
1863
/**
1864
 * Interface for 0.5.0 version
1865
 *
1866
 * do not even think about it's usage for this moment
1867
 */
1868

    
1869
typedef struct {
1870
    /// compressed size used from given memory buffer
1871
    int size;
1872
    /// I/P/B frame type
1873
    int frame_type;
1874
} avc_enc_result_t;
1875

    
1876
/**
1877
 * Commands
1878
 * order can't be changed - once it was defined
1879
 */
1880
typedef enum {
1881
    // general commands
1882
    AVC_OPEN_BY_NAME = 0xACA000,
1883
    AVC_OPEN_BY_CODEC_ID,
1884
    AVC_OPEN_BY_FOURCC,
1885
    AVC_CLOSE,
1886

    
1887
    AVC_FLUSH,
1888
    // pin - struct { uint8_t* src, uint_t src_size }
1889
    // pout - struct { AVPicture* img, consumed_bytes,
1890
    AVC_DECODE,
1891
    // pin - struct { AVPicture* img, uint8_t* dest, uint_t dest_size }
1892
    // pout - uint_t used_from_dest_size
1893
    AVC_ENCODE, 
1894

    
1895
    // query/get video commands
1896
    AVC_GET_VERSION = 0xACB000,
1897
    AVC_GET_WIDTH,
1898
    AVC_GET_HEIGHT,
1899
    AVC_GET_DELAY,
1900
    AVC_GET_QUANT_TABLE,
1901
    // ...
1902

    
1903
    // query/get audio commands
1904
    AVC_GET_FRAME_SIZE = 0xABC000,
1905

    
1906
    // maybe define some simple structure which
1907
    // might be passed to the user - but they can't
1908
    // contain any codec specific parts and these
1909
    // calls are usualy necessary only few times
1910

    
1911
    // set video commands
1912
    AVC_SET_WIDTH = 0xACD000,
1913
    AVC_SET_HEIGHT,
1914

    
1915
    // set video encoding commands
1916
    AVC_SET_FRAME_RATE = 0xACD800,
1917
    AVC_SET_QUALITY,
1918
    AVC_SET_HURRY_UP,
1919

    
1920
    // set audio commands
1921
    AVC_SET_SAMPLE_RATE = 0xACE000,
1922
    AVC_SET_CHANNELS,
1923

    
1924
} avc_cmd_t;
1925

    
1926
/**
1927
 * \param handle  allocated private structure by libavcodec
1928
 *                for initialization pass NULL - will be returned pout
1929
 *                user is supposed to know nothing about its structure
1930
 * \param cmd     type of operation to be performed
1931
 * \param pint    input parameter
1932
 * \param pout    output parameter
1933
 *
1934
 * \returns  command status - eventually for query command it might return
1935
 * integer resulting value
1936
 */
1937
int avcodec(void* handle, avc_cmd_t cmd, void* pin, void* pout);
1938

    
1939
/* frame parsing */
1940
typedef struct AVCodecParserContext {
1941
    void *priv_data;
1942
    struct AVCodecParser *parser;
1943
    int64_t frame_offset; /* offset of the current frame */
1944
    int64_t cur_offset; /* current offset 
1945
                           (incremented by each av_parser_parse()) */
1946
    int64_t last_frame_offset; /* offset of the last frame */
1947
    /* video info */
1948
    int pict_type; /* XXX: put it back in AVCodecContext */
1949
    int repeat_pict; /* XXX: put it back in AVCodecContext */
1950
    int64_t pts;     /* pts of the current frame */
1951
    int64_t dts;     /* dts of the current frame */
1952

    
1953
    /* private data */
1954
    int64_t last_pts;
1955
    int64_t last_dts;
1956

    
1957
#define AV_PARSER_PTS_NB 4
1958
    int cur_frame_start_index;
1959
    int64_t cur_frame_offset[AV_PARSER_PTS_NB];
1960
    int64_t cur_frame_pts[AV_PARSER_PTS_NB];
1961
    int64_t cur_frame_dts[AV_PARSER_PTS_NB];
1962
} AVCodecParserContext;
1963

    
1964
typedef struct AVCodecParser {
1965
    int codec_ids[3]; /* several codec IDs are permitted */
1966
    int priv_data_size;
1967
    int (*parser_init)(AVCodecParserContext *s);
1968
    int (*parser_parse)(AVCodecParserContext *s, 
1969
                        AVCodecContext *avctx,
1970
                        uint8_t **poutbuf, int *poutbuf_size, 
1971
                        const uint8_t *buf, int buf_size);
1972
    void (*parser_close)(AVCodecParserContext *s);
1973
    struct AVCodecParser *next;
1974
} AVCodecParser;
1975

    
1976
extern AVCodecParser *av_first_parser;
1977

    
1978
void av_register_codec_parser(AVCodecParser *parser);
1979
AVCodecParserContext *av_parser_init(int codec_id);
1980
int av_parser_parse(AVCodecParserContext *s, 
1981
                    AVCodecContext *avctx,
1982
                    uint8_t **poutbuf, int *poutbuf_size, 
1983
                    const uint8_t *buf, int buf_size,
1984
                    int64_t pts, int64_t dts);
1985
void av_parser_close(AVCodecParserContext *s);
1986

    
1987
extern AVCodecParser mpegvideo_parser;
1988
extern AVCodecParser mpeg4video_parser;
1989
extern AVCodecParser h263_parser;
1990
extern AVCodecParser h264_parser;
1991
extern AVCodecParser mpegaudio_parser;
1992
extern AVCodecParser ac3_parser;
1993

    
1994
/* memory */
1995
void *av_malloc(unsigned int size);
1996
void *av_mallocz(unsigned int size);
1997
void *av_realloc(void *ptr, unsigned int size);
1998
void av_free(void *ptr);
1999
char *av_strdup(const char *s);
2000
void __av_freep(void **ptr);
2001
#define av_freep(p) __av_freep((void **)(p))
2002
void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
2003
/* for static data only */
2004
/* call av_free_static to release all staticaly allocated tables */
2005
void av_free_static(void);
2006
void *__av_mallocz_static(void** location, unsigned int size);
2007
#define av_mallocz_static(p, s) __av_mallocz_static((void **)(p), s)
2008

    
2009
/* add by bero : in adx.c */
2010
int is_adx(const unsigned char *buf,size_t bufsize);
2011

    
2012
void img_copy(AVPicture *dst, const AVPicture *src,
2013
              int pix_fmt, int width, int height);
2014

    
2015
/* av_log API */
2016

    
2017
#include <stdarg.h>
2018

    
2019
#define AV_LOG_ERROR 0
2020
#define AV_LOG_INFO 1
2021
#define AV_LOG_DEBUG 2
2022

    
2023
extern void av_log(AVCodecContext*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
2024
extern void av_vlog(AVCodecContext*, int level, const char *fmt, va_list);
2025
extern int av_log_get_level(void);
2026
extern void av_log_set_level(int);
2027
extern void av_log_set_callback(void (*)(AVCodecContext*, int, const char*, va_list));
2028

    
2029
#undef  AV_LOG_TRAP_PRINTF
2030
#ifdef AV_LOG_TRAP_PRINTF
2031
#define printf DO NOT USE
2032
#define fprintf DO NOT USE
2033
#undef stderr
2034
#define stderr DO NOT USE
2035
#endif
2036

    
2037
#ifdef __cplusplus
2038
}
2039
#endif
2040

    
2041
#endif /* AVCODEC_H */