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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       4707
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#define LIBAVCODEC_VERSION_INT FFMPEG_VERSION_INT
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#define LIBAVCODEC_VERSION     FFMPEG_VERSION
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#define AV_STRINGIFY(s)        AV_TOSTRING(s)
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#define AV_TOSTRING(s) #s
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#define LIBAVCODEC_IDENT        "FFmpeg" LIBAVCODEC_VERSION "b" AV_STRINGIFY(LIBAVCODEC_BUILD)
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#define AV_NOPTS_VALUE int64_t_C(0x8000000000000000)
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#define AV_TIME_BASE 1000000
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enum CodecID {
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    CODEC_ID_NONE, 
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    CODEC_ID_MPEG1VIDEO,
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    CODEC_ID_MPEG2VIDEO, /* prefered ID for MPEG Video 1 or 2 decoding */
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    CODEC_ID_MPEG2VIDEO_XVMC,
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    CODEC_ID_H263,
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    CODEC_ID_RV10,
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    CODEC_ID_RV20,
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    CODEC_ID_MP2,
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    CODEC_ID_MP3, /* prefered ID for MPEG Audio layer 1, 2 or3 decoding */
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    CODEC_ID_VORBIS,
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    CODEC_ID_AC3,
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    CODEC_ID_MJPEG,
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    CODEC_ID_MJPEGB,
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    CODEC_ID_LJPEG,
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    CODEC_ID_SP5X,
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    CODEC_ID_MPEG4,
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    CODEC_ID_RAWVIDEO,
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    CODEC_ID_MSMPEG4V1,
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    CODEC_ID_MSMPEG4V2,
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    CODEC_ID_MSMPEG4V3,
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    CODEC_ID_WMV1,
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    CODEC_ID_WMV2,
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    CODEC_ID_H263P,
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    CODEC_ID_H263I,
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    CODEC_ID_FLV1,
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    CODEC_ID_SVQ1,
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    CODEC_ID_SVQ3,
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    CODEC_ID_DVVIDEO,
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    CODEC_ID_DVAUDIO,
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    CODEC_ID_WMAV1,
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    CODEC_ID_WMAV2,
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    CODEC_ID_MACE3,
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    CODEC_ID_MACE6,
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    CODEC_ID_HUFFYUV,
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    CODEC_ID_CYUV,
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    CODEC_ID_H264,
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    CODEC_ID_INDEO3,
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    CODEC_ID_VP3,
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    CODEC_ID_THEORA,
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    CODEC_ID_AAC,
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    CODEC_ID_MPEG4AAC,
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    CODEC_ID_ASV1,
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    CODEC_ID_ASV2,
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    CODEC_ID_FFV1,
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    CODEC_ID_4XM,
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    CODEC_ID_VCR1,
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    CODEC_ID_CLJR,
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    CODEC_ID_MDEC,
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    CODEC_ID_ROQ,
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    CODEC_ID_INTERPLAY_VIDEO,
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    CODEC_ID_XAN_WC3,
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    CODEC_ID_XAN_WC4,
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    CODEC_ID_RPZA,
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    CODEC_ID_CINEPAK,
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    CODEC_ID_WS_VQA,
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    CODEC_ID_MSRLE,
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    CODEC_ID_MSVIDEO1,
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    CODEC_ID_IDCIN,
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    CODEC_ID_8BPS,
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    CODEC_ID_SMC,
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    CODEC_ID_FLIC,
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    CODEC_ID_TRUEMOTION1,
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    CODEC_ID_VMDVIDEO,
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    CODEC_ID_VMDAUDIO,
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    CODEC_ID_MSZH,
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    CODEC_ID_ZLIB,
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    CODEC_ID_QTRLE,
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    /* various pcm "codecs" */
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    CODEC_ID_PCM_S16LE,
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    CODEC_ID_PCM_S16BE,
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    CODEC_ID_PCM_U16LE,
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    CODEC_ID_PCM_U16BE,
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    CODEC_ID_PCM_S8,
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    CODEC_ID_PCM_U8,
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    CODEC_ID_PCM_MULAW,
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    CODEC_ID_PCM_ALAW,
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    /* various adpcm codecs */
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    CODEC_ID_ADPCM_IMA_QT,
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    CODEC_ID_ADPCM_IMA_WAV,
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    CODEC_ID_ADPCM_IMA_DK3,
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    CODEC_ID_ADPCM_IMA_DK4,
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    CODEC_ID_ADPCM_IMA_WS,
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    CODEC_ID_ADPCM_IMA_SMJPEG,
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    CODEC_ID_ADPCM_MS,
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    CODEC_ID_ADPCM_4XM,
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    CODEC_ID_ADPCM_XA,
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    CODEC_ID_ADPCM_ADX,
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    CODEC_ID_ADPCM_EA,
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    CODEC_ID_ADPCM_G726,
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        /* AMR */
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    CODEC_ID_AMR_NB,
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    CODEC_ID_AMR_WB,
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    /* RealAudio codecs*/
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    CODEC_ID_RA_144,
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    CODEC_ID_RA_288,
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    /* various DPCM codecs */
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    CODEC_ID_ROQ_DPCM,
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    CODEC_ID_INTERPLAY_DPCM,
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    CODEC_ID_XAN_DPCM,
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    CODEC_ID_FLAC,
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    CODEC_ID_MPEG2TS, /* _FAKE_ codec to indicate a raw MPEG2 transport
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                         stream (only used by libavformat) */
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};
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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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#define FF_MAX_B_FRAMES 8
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/* encoding support
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   these flags can be passed in AVCodecContext.flags before initing 
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   Note: note not everything is supported yet 
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*/
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#define CODEC_FLAG_QSCALE 0x0002  ///< use fixed qscale 
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#define CODEC_FLAG_4MV    0x0004  ///< 4 MV per MB allowed / Advanced prediction for H263
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#define CODEC_FLAG_QPEL   0x0010  ///< use qpel MC 
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#define CODEC_FLAG_GMC    0x0020  ///< use GMC 
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#define CODEC_FLAG_MV0    0x0040  ///< always try a MB with MV=<0,0> 
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#define CODEC_FLAG_PART   0x0080  ///< use data partitioning 
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/* parent program gurantees that the input for b-frame containing streams is not written to 
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   for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
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#define CODEC_FLAG_INPUT_PRESERVED 0x0100
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#define CODEC_FLAG_PASS1 0x0200   ///< use internal 2pass ratecontrol in first  pass mode 
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#define CODEC_FLAG_PASS2 0x0400   ///< use internal 2pass ratecontrol in second pass mode 
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#define CODEC_FLAG_EXTERN_HUFF 0x1000 ///< use external huffman table (for mjpeg) 
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#define CODEC_FLAG_GRAY  0x2000   ///< only decode/encode grayscale 
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#define CODEC_FLAG_EMU_EDGE 0x4000///< dont draw edges 
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#define CODEC_FLAG_PSNR           0x8000 ///< error[?] variables will be set during encoding 
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#define CODEC_FLAG_TRUNCATED  0x00010000 /** input bitstream might be truncated at a random location instead 
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                                            of only at frame boundaries */
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#define CODEC_FLAG_NORMALIZE_AQP  0x00020000 ///< normalize adaptive quantization 
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#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< use interlaced dct 
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#define CODEC_FLAG_LOW_DELAY      0x00080000 ///< force low delay
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#define CODEC_FLAG_ALT_SCAN       0x00100000 ///< use alternate scan 
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#define CODEC_FLAG_TRELLIS_QUANT  0x00200000 ///< use trellis quantization 
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#define CODEC_FLAG_GLOBAL_HEADER  0x00400000 ///< place global headers in extradata instead of every keyframe 
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#define CODEC_FLAG_BITEXACT       0x00800000 ///< use only bitexact stuff (except (i)dct) 
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/* Fx : Flag for h263+ extra options */
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#define CODEC_FLAG_H263P_AIC      0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction (remove this)
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#define CODEC_FLAG_AC_PRED        0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction
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#define CODEC_FLAG_H263P_UMV      0x02000000 ///< Unlimited motion vector  
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#define CODEC_FLAG_CBP_RD         0x04000000 ///< use rate distortion optimization for cbp
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#define CODEC_FLAG_QP_RD          0x08000000 ///< use rate distortion optimization for qp selectioon
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#define CODEC_FLAG_H263P_AIV      0x00000008 ///< H263 Alternative inter vlc
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#define CODEC_FLAG_OBMC           0x00000001 ///< OBMC
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#define CODEC_FLAG_LOOP_FILTER    0x00000800 ///< loop filter
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#define CODEC_FLAG_H263P_SLICE_STRUCT 0x10000000
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#define CODEC_FLAG_INTERLACED_ME  0x20000000 ///< interlaced motion estimation
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#define CODEC_FLAG_SVCD_SCAN_OFFSET 0x40000000 ///< will reserve space for SVCD scan offset user data
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#define CODEC_FLAG_CLOSED_GOP     0x80000000
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/* Unsupported options :
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 *                 Syntax Arithmetic coding (SAC)
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 *                 Reference Picture Selection
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 *                 Independant Segment Decoding */
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/* /Fx */
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/* codec capabilities */
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#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< decoder can use draw_horiz_band callback 
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/**
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 * Codec uses get_buffer() for allocating buffers.
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 * direct rendering method 1
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 */
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#define CODEC_CAP_DR1             0x0002
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/* if 'parse_only' field is true, then avcodec_parse_frame() can be
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   used */
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#define CODEC_CAP_PARSE_ONLY      0x0004
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#define CODEC_CAP_TRUNCATED       0x0008
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/* codec can export data for HW decoding (XvMC) */
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#define CODEC_CAP_HWACCEL         0x0010
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//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 AV_TIME_BASE (=micro seconds currently) (time when frame should be shown to user)\
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     * if AV_NOPTS_VALUE then the frame_rate will be used as reference\
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     * - encoding: MUST be set by user\
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     * - decoding: set by lavc\
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     */\
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    int64_t pts;\
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\
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    /**\
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     * picture number in bitstream order.\
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     * - encoding: set by\
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     * - 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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     */\
398
    int display_picture_number;\
399
\
400
    /**\
401 158c7f05 Michael Niedermayer
     * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
402 64863965 Michael Niedermayer
     * - encoding: set by lavc for coded_picture (and set by user for input)\
403
     * - decoding: set by lavc\
404 1e491e29 Michael Niedermayer
     */\
405 158c7f05 Michael Niedermayer
    int quality; \
406 1e491e29 Michael Niedermayer
\
407
    /**\
408
     * buffer age (1->was last buffer and dint change, 2->..., ...).\
409 158c7f05 Michael Niedermayer
     * set to INT_MAX if the buffer has not been used yet \
410 64863965 Michael Niedermayer
     * - encoding: unused\
411
     * - decoding: MUST be set by get_buffer()\
412 1e491e29 Michael Niedermayer
     */\
413
    int age;\
414
\
415
    /**\
416
     * is this picture used as reference\
417 64863965 Michael Niedermayer
     * - encoding: unused\
418
     * - decoding: set by lavc (before get_buffer() call))\
419 1e491e29 Michael Niedermayer
     */\
420
    int reference;\
421
\
422
    /**\
423
     * QP table\
424 64863965 Michael Niedermayer
     * - encoding: unused\
425
     * - decoding: set by lavc\
426 1e491e29 Michael Niedermayer
     */\
427
    int8_t *qscale_table;\
428
    /**\
429
     * QP store stride\
430 64863965 Michael Niedermayer
     * - encoding: unused\
431
     * - decoding: set by lavc\
432 1e491e29 Michael Niedermayer
     */\
433
    int qstride;\
434
\
435
    /**\
436
     * mbskip_table[mb]>=1 if MB didnt change\
437
     * stride= mb_width = (width+15)>>4\
438 64863965 Michael Niedermayer
     * - encoding: unused\
439
     * - decoding: set by lavc\
440 1e491e29 Michael Niedermayer
     */\
441
    uint8_t *mbskip_table;\
442
\
443
    /**\
444 8d7ec294 Wolfgang Hesseler
     * Motion vector table\
445
     * - encoding: unused\
446
     * - decoding: set by lavc\
447
     */\
448
    int16_t (*motion_val[2])[2];\
449
\
450
    /**\
451
     * Macroblock type table\
452
     * mb_type_base + mb_width + 2\
453
     * - encoding: unused\
454
     * - decoding: set by lavc\
455
     */\
456
    uint32_t *mb_type;\
457
\
458
    /**\
459
     * Macroblock size: (0->16x16, 1->8x8, 2-> 4x4, 3-> 2x2)\
460
     * - encoding: unused\
461
     * - decoding: set by lavc\
462
     */\
463
    uint8_t motion_subsample_log2;\
464
\
465
    /**\
466 1e491e29 Michael Niedermayer
     * for some private data of the user\
467 64863965 Michael Niedermayer
     * - encoding: unused\
468
     * - decoding: set by user\
469 1e491e29 Michael Niedermayer
     */\
470
    void *opaque;\
471 140cb663 Michael Niedermayer
\
472
    /**\
473
     * error\
474 64863965 Michael Niedermayer
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
475
     * - decoding: unused\
476 140cb663 Michael Niedermayer
     */\
477
    uint64_t error[4];\
478 4e00e76b Michael Niedermayer
\
479
    /**\
480
     * type of the buffer (to keep track of who has to dealloc data[*])\
481 64863965 Michael Niedermayer
     * - encoding: set by the one who allocs it\
482
     * - decoding: set by the one who allocs it\
483 3db320ea Falk Hüffner
     * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
484 4e00e76b Michael Niedermayer
     */\
485
    int type;\
486 2ec23b6d Michael Niedermayer
    \
487
    /**\
488
     * when decoding, this signal how much the picture must be delayed.\
489
     * extra_delay = repeat_pict / (2*fps)\
490 64863965 Michael Niedermayer
     * - encoding: unused\
491
     * - decoding: set by lavc\
492 2ec23b6d Michael Niedermayer
     */\
493 0426af31 Michael Niedermayer
    int repeat_pict;\
494
    \
495
    /**\
496
     * \
497
     */\
498
    int qscale_type;\
499 2744ca9a Roman Shaposhnik
    \
500
    /**\
501
     * The content of the picture is interlaced.\
502
     * - encoding: set by user\
503
     * - decoding: set by lavc (default 0)\
504
     */\
505
    int interlaced_frame;\
506
    \
507
    /**\
508 9dad924e Michael Niedermayer
     * if the content is interlaced, is top field displayed first.\
509 2744ca9a Roman Shaposhnik
     * - encoding: set by user\
510 9dad924e Michael Niedermayer
     * - decoding: set by lavc\
511 2744ca9a Roman Shaposhnik
     */\
512 9dad924e Michael Niedermayer
    int top_field_first;\
513 fa384dcc Michael Niedermayer
    \
514
    /**\
515
     * Pan scan.\
516
     * - encoding: set by user\
517
     * - decoding: set by lavc\
518
     */\
519
    AVPanScan *pan_scan;\
520 2a2bbcb0 Mike Melanson
    \
521
    /**\
522
     * tell user application that palette has changed from previous frame.\
523
     * - encoding: ??? (no palette-enabled encoder yet)\
524
     * - decoding: set by lavc (default 0)\
525
     */\
526
    int palette_has_changed;\
527 074c4ca7 Roberto Togni
    \
528
    /**\
529
     * Codec suggestion on buffer type if != 0\
530
     * - encoding: unused\
531
     * - decoding: set by lavc (before get_buffer() call))\
532
     */\
533
    int buffer_hints;\
534 8289c6fa Wolfgang Hesseler
\
535
    /**\
536
     * DCT coeffitients\
537
     * - encoding: unused\
538
     * - decoding: set by lavc\
539
     */\
540
    short *dct_coeff;\
541 2ec23b6d Michael Niedermayer
542 0426af31 Michael Niedermayer
#define FF_QSCALE_TYPE_MPEG1        0
543
#define FF_QSCALE_TYPE_MPEG2        1
544 4e00e76b Michael Niedermayer
545
#define FF_BUFFER_TYPE_INTERNAL 1
546 9b56edf5 Michael Niedermayer
#define FF_BUFFER_TYPE_USER     2 ///< Direct rendering buffers (image is (de)allocated by user)
547
#define FF_BUFFER_TYPE_SHARED   4 ///< buffer from somewher else, dont dealloc image (data/base)
548
#define FF_BUFFER_TYPE_COPY     8 ///< just a (modified) copy of some other buffer, dont dealloc anything
549 4e00e76b Michael Niedermayer
550 1e491e29 Michael Niedermayer
551 140cb663 Michael Niedermayer
#define FF_I_TYPE 1 // Intra
552
#define FF_P_TYPE 2 // Predicted
553
#define FF_B_TYPE 3 // Bi-dir predicted
554
#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
555 0da71265 Michael Niedermayer
#define FF_SI_TYPE 5
556
#define FF_SP_TYPE 6
557 1e491e29 Michael Niedermayer
558 074c4ca7 Roberto Togni
#define FF_BUFFER_HINTS_VALID    0x01 // Buffer hints value is meaningful (if 0 ignore)
559
#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
560
#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
561
#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
562
563 0da71265 Michael Niedermayer
/**
564
 * Audio Video Frame.
565
 */
566 492cd3a9 Michael Niedermayer
typedef struct AVFrame {
567
    FF_COMMON_FRAME
568
} AVFrame;
569 1e491e29 Michael Niedermayer
570 14bea432 Michael Niedermayer
#define DEFAULT_FRAME_RATE_BASE 1001000
571 d33c949c Michael Niedermayer
572
/**
573 bc874dae Michel Bardiaux
 * Used by av_log
574
 */
575
typedef struct AVCLASS AVClass;
576
struct AVCLASS {
577
    const char* class_name;
578
    const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext
579
                                        or AVFormatContext, which begin with an AVClass.
580
                                        Needed because av_log is in libavcodec and has no visibility
581
                                        of AVIn/OutputFormat */
582
};
583
584
/**
585 d33c949c Michael Niedermayer
 * main external api structure.
586
 */
587 de6d9b64 Fabrice Bellard
typedef struct AVCodecContext {
588 b71901e6 Michael Niedermayer
    /**
589 bc874dae Michel Bardiaux
     * Info on struct for av_log
590
     * - set by avcodec_alloc_context
591
     */
592 43465395 Michael Niedermayer
    AVClass *av_class;
593 bc874dae Michel Bardiaux
    /**
594 64863965 Michael Niedermayer
     * the average bitrate.
595
     * - encoding: set by user. unused for constant quantizer encoding
596
     * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream 
597 b71901e6 Michael Niedermayer
     */
598 de6d9b64 Fabrice Bellard
    int bit_rate;
599 b71901e6 Michael Niedermayer
600
    /**
601 64863965 Michael Niedermayer
     * number of bits the bitstream is allowed to diverge from the reference.
602 b71901e6 Michael Niedermayer
     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
603 64863965 Michael Niedermayer
     * - encoding: set by user. unused for constant quantizer encoding
604
     * - decoding: unused
605 b71901e6 Michael Niedermayer
     */
606
    int bit_rate_tolerance; 
607
608
    /**
609 64863965 Michael Niedermayer
     * CODEC_FLAG_*.
610
     * - encoding: set by user.
611
     * - decoding: set by user.
612 b71901e6 Michael Niedermayer
     */
613 de6d9b64 Fabrice Bellard
    int flags;
614 b71901e6 Michael Niedermayer
615
    /**
616
     * some codecs needs additionnal format info. It is stored here
617 64863965 Michael Niedermayer
     * - encoding: set by user. 
618
     * - decoding: set by lavc. (FIXME is this ok?)
619 b71901e6 Michael Niedermayer
     */
620
    int sub_id;
621
622
    /**
623 64863965 Michael Niedermayer
     * motion estimation algorithm used for video coding.
624
     * - encoding: MUST be set by user.
625
     * - decoding: unused
626 b71901e6 Michael Niedermayer
     */
627
    int me_method;
628
629
    /**
630 64863965 Michael Niedermayer
     * some codecs need / can use extra-data like huffman tables.
631 b71901e6 Michael Niedermayer
     * mjpeg: huffman tables
632
     * rv10: additional flags
633 b704e742 Michael Niedermayer
     * mpeg4: global headers (they can be in the bitstream or here)
634 64863965 Michael Niedermayer
     * - encoding: set/allocated/freed by lavc.
635
     * - decoding: set/allocated/freed by user.
636 b71901e6 Michael Niedermayer
     */
637 e84c31dc Arpi
    void *extradata;
638
    int extradata_size;
639
    
640 de6d9b64 Fabrice Bellard
    /* video only */
641 b71901e6 Michael Niedermayer
    /**
642 14bea432 Michael Niedermayer
     * frames per sec multiplied by frame_rate_base.
643 b71901e6 Michael Niedermayer
     * for variable fps this is the precission, so if the timestamps 
644 14bea432 Michael Niedermayer
     * can be specified in msec precssion then this is 1000*frame_rate_base
645 64863965 Michael Niedermayer
     * - encoding: MUST be set by user
646
     * - decoding: set by lavc. 0 or the frame_rate if available
647 b71901e6 Michael Niedermayer
     */
648
    int frame_rate;
649 14bea432 Michael Niedermayer
    
650
    /**
651 64863965 Michael Niedermayer
     * width / height.
652
     * - encoding: MUST be set by user. 
653 95831f48 Michael Niedermayer
     * - decoding: set by user if known, codec should override / dynamically change if needed
654 b71901e6 Michael Niedermayer
     */
655 de6d9b64 Fabrice Bellard
    int width, height;
656 b71901e6 Michael Niedermayer
    
657 e769f053 Alex Beregszaszi
#define FF_ASPECT_EXTENDED 15
658 b71901e6 Michael Niedermayer
659
    /**
660 64863965 Michael Niedermayer
     * the number of pictures in a group of pitures, or 0 for intra_only.
661
     * - encoding: set by user.
662
     * - decoding: unused
663 b71901e6 Michael Niedermayer
     */
664
    int gop_size;
665
666
    /**
667 64863965 Michael Niedermayer
     * pixel format, see PIX_FMT_xxx.
668 36b58e85 Roman Shaposhnik
     * - encoding: FIXME: used by ffmpeg to decide whether an pix_fmt
669
     *                    conversion is in order. This only works for
670
     *                    codecs with one supported pix_fmt, we should
671
     *                    do something for a generic case as well.
672 64863965 Michael Niedermayer
     * - decoding: set by lavc.
673 b71901e6 Michael Niedermayer
     */
674 e4eadb4b Michael Niedermayer
    enum PixelFormat pix_fmt;
675 bdfcbbed Max Krasnyansky
 
676
    /**
677
     * Frame rate emulation. If not zero lower layer (i.e. format handler) 
678
     * has to read frames at native frame rate.
679
     * - encoding: set by user.
680
     * - decoding: unused.
681
     */
682
    int rate_emu;
683
       
684 b71901e6 Michael Niedermayer
    /**
685
     * if non NULL, 'draw_horiz_band' is called by the libavcodec
686
     * decoder to draw an horizontal band. It improve cache usage. Not
687
     * all codecs can do that. You must check the codec capabilities
688
     * before
689 64863965 Michael Niedermayer
     * - encoding: unused
690
     * - decoding: set by user.
691 3bb07d61 Michael Niedermayer
     * @param height the height of the slice
692
     * @param y the y position of the slice
693
     * @param type 1->top field, 2->bottom field, 3->frame
694
     * @param offset offset into the AVFrame.data from which the slice should be read
695 b71901e6 Michael Niedermayer
     */
696 bf89e6b1 Fabrice Bellard
    void (*draw_horiz_band)(struct AVCodecContext *s,
697 da64ecc3 Drew Hess
                            const AVFrame *src, int offset[4],
698 3bb07d61 Michael Niedermayer
                            int y, int type, int height);
699 bf89e6b1 Fabrice Bellard
700 de6d9b64 Fabrice Bellard
    /* audio only */
701 64863965 Michael Niedermayer
    int sample_rate; ///< samples per sec 
702 de6d9b64 Fabrice Bellard
    int channels;
703 64863965 Michael Niedermayer
    int sample_fmt;  ///< sample format, currenly unused 
704 de6d9b64 Fabrice Bellard
705
    /* the following data should not be initialized */
706 64863965 Michael Niedermayer
    int frame_size;     ///< in samples, initialized when calling 'init' 
707
    int frame_number;   ///< audio or video frame number 
708
    int real_pict_num;  ///< returns the real picture number of previous encoded frame 
709 1e491e29 Michael Niedermayer
    
710 b71901e6 Michael Niedermayer
    /**
711
     * number of frames the decoded output will be delayed relative to 
712 64863965 Michael Niedermayer
     * the encoded input.
713
     * - encoding: set by lavc.
714
     * - decoding: unused
715 b71901e6 Michael Niedermayer
     */
716
    int delay;
717 1ff662cc Michael Niedermayer
    
718 64863965 Michael Niedermayer
    /* - encoding parameters */
719
    float qcompress;  ///< amount of qscale change between easy & hard scenes (0.0-1.0)
720
    float qblur;      ///< amount of qscale smoothing over time (0.0-1.0) 
721 b71901e6 Michael Niedermayer
    
722
    /**
723 64863965 Michael Niedermayer
     * minimum quantizer.
724
     * - encoding: set by user.
725
     * - decoding: unused
726 b71901e6 Michael Niedermayer
     */
727
    int qmin;
728
729
    /**
730 64863965 Michael Niedermayer
     * maximum quantizer.
731
     * - encoding: set by user.
732
     * - decoding: unused
733 b71901e6 Michael Niedermayer
     */
734
    int qmax;
735
736
    /**
737 64863965 Michael Niedermayer
     * maximum quantizer difference etween frames.
738
     * - encoding: set by user.
739
     * - decoding: unused
740 b71901e6 Michael Niedermayer
     */
741
    int max_qdiff;
742
743
    /**
744 64863965 Michael Niedermayer
     * maximum number of b frames between non b frames.
745 b71901e6 Michael Niedermayer
     * note: the output will be delayed by max_b_frames+1 relative to the input
746 64863965 Michael Niedermayer
     * - encoding: set by user.
747
     * - decoding: unused
748 b71901e6 Michael Niedermayer
     */
749
    int max_b_frames;
750
751
    /**
752 64863965 Michael Niedermayer
     * qscale factor between ip and b frames.
753
     * - encoding: set by user.
754
     * - decoding: unused
755 b71901e6 Michael Niedermayer
     */
756
    float b_quant_factor;
757
    
758
    /** obsolete FIXME remove */
759
    int rc_strategy;
760 8b4c7dbc Michael Niedermayer
    int b_frame_strategy;
761 9dbcbd92 Michael Niedermayer
762 b71901e6 Michael Niedermayer
    /**
763 64863965 Michael Niedermayer
     * hurry up amount.
764
     * - encoding: unused
765
     * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
766 b71901e6 Michael Niedermayer
     */
767
    int hurry_up;
768 2417652e Michael Niedermayer
    
769 de6d9b64 Fabrice Bellard
    struct AVCodec *codec;
770 b71901e6 Michael Niedermayer
    
771 de6d9b64 Fabrice Bellard
    void *priv_data;
772
773 ba58dabc Michael Niedermayer
    /* unused, FIXME remove*/
774
    int rtp_mode;
775 644d98a4 Juanjo
    
776
    int rtp_payload_size;   /* The size of the RTP payload, the coder will  */
777
                            /* do it's best to deliver a chunk with size    */
778
                            /* below rtp_payload_size, the chunk will start */
779
                            /* with a start code on some codecs like H.263  */
780
                            /* This doesn't take account of any particular  */
781
                            /* headers inside the transmited RTP payload    */
782 81401c1f Juanjo
783
    
784
    /* The RTP callcack: This function is called  */
785
    /* every time the encoder as a packet to send */
786
    /* Depends on the encoder if the data starts  */
787
    /* with a Start Code (it should) H.263 does   */
788
    void (*rtp_callback)(void *data, int size, int packet_number); 
789
790 098eefe1 Michael Niedermayer
    /* statistics, used for 2-pass encoding */
791
    int mv_bits;
792
    int header_bits;
793
    int i_tex_bits;
794
    int p_tex_bits;
795
    int i_count;
796
    int p_count;
797
    int skip_count;
798 b71901e6 Michael Niedermayer
    int misc_bits;
799
    
800
    /**
801 64863965 Michael Niedermayer
     * number of bits used for the previously encoded frame.
802
     * - encoding: set by lavc
803 7004ffb3 Michael Niedermayer
     * - decoding: unused
804 b71901e6 Michael Niedermayer
     */
805 098eefe1 Michael Niedermayer
    int frame_bits;
806 7004ffb3 Michael Niedermayer
807 b71901e6 Michael Niedermayer
    /**
808 64863965 Michael Niedermayer
     * private data of the user, can be used to carry app specific stuff.
809
     * - encoding: set by user
810
     * - decoding: set by user
811 b71901e6 Michael Niedermayer
     */
812
    void *opaque;
813
814 de6d9b64 Fabrice Bellard
    char codec_name[32];
815 4a663d80 Philip Gladstone
    enum CodecType codec_type; /* see CODEC_TYPE_xxx */
816
    enum CodecID codec_id; /* see CODEC_ID_xxx */
817 7004ffb3 Michael Niedermayer
    
818
    /**
819
     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
820
     * this is used to workaround some encoder bugs
821 bd5a6020 Michael Niedermayer
     * - encoding: set by user, if not then the default based on codec_id will be used
822 7004ffb3 Michael Niedermayer
     * - decoding: set by user, will be converted to upper case by lavc during init
823
     */
824
    unsigned int codec_tag;
825 92ba5ffb Michael Niedermayer
    
826 b71901e6 Michael Niedermayer
    /**
827 64863965 Michael Niedermayer
     * workaround bugs in encoders which sometimes cannot be detected automatically.
828
     * - encoding: unused
829
     * - decoding: set by user
830 b71901e6 Michael Niedermayer
     */
831
    int workaround_bugs;
832 64863965 Michael Niedermayer
#define FF_BUG_AUTODETECT       1  ///< autodetection
833 4d2858de Michael Niedermayer
#define FF_BUG_OLD_MSMPEG4      2
834
#define FF_BUG_XVID_ILACE       4
835
#define FF_BUG_UMP4             8
836
#define FF_BUG_NO_PADDING       16
837 ac0c6638 Michael Niedermayer
#define FF_BUG_AC_VLC           0  ///< will be removed, libavcodec can now handle these non compliant files by default
838 03e93d35 Michael Niedermayer
#define FF_BUG_QPEL_CHROMA      64
839 db794953 Michael Niedermayer
#define FF_BUG_STD_QPEL         128
840 36df8805 Michael Niedermayer
#define FF_BUG_QPEL_CHROMA2     256
841 c40c3482 Michael Niedermayer
#define FF_BUG_DIRECT_BLOCKSIZE 512
842 1c6dcb0f Michael Niedermayer
#define FF_BUG_EDGE             1024
843 4d2858de Michael Niedermayer
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
844
        
845 b71901e6 Michael Niedermayer
    /**
846 64863965 Michael Niedermayer
     * luma single coeff elimination threshold.
847
     * - encoding: set by user
848
     * - decoding: unused
849 b71901e6 Michael Niedermayer
     */
850 1f6b6e50 Michael Niedermayer
    int luma_elim_threshold;
851 b71901e6 Michael Niedermayer
    
852
    /**
853 64863965 Michael Niedermayer
     * chroma single coeff elimination threshold.
854
     * - encoding: set by user
855
     * - decoding: unused
856 b71901e6 Michael Niedermayer
     */
857 1f6b6e50 Michael Niedermayer
    int chroma_elim_threshold;
858 b71901e6 Michael Niedermayer
    
859
    /**
860 64863965 Michael Niedermayer
     * strictly follow the std (MPEG4, ...).
861
     * - encoding: set by user
862
     * - decoding: unused
863 b71901e6 Michael Niedermayer
     */
864
    int strict_std_compliance;
865
    
866
    /**
867 64863965 Michael Niedermayer
     * qscale offset between ip and b frames.
868 b3a391e8 Michael Niedermayer
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
869
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
870 64863965 Michael Niedermayer
     * - encoding: set by user.
871
     * - decoding: unused
872 b71901e6 Michael Niedermayer
     */
873
    float b_quant_offset;
874
    
875
    /**
876 ce3bcaed Michael Niedermayer
     * error resilience higher values will detect more errors but may missdetect
877 64863965 Michael Niedermayer
     * some more or less valid parts as errors.
878
     * - encoding: unused
879
     * - decoding: set by user
880 b71901e6 Michael Niedermayer
     */
881 1f6b6e50 Michael Niedermayer
    int error_resilience;
882 ce3bcaed Michael Niedermayer
#define FF_ER_CAREFULL        1
883
#define FF_ER_COMPLIANT       2
884
#define FF_ER_AGGRESSIVE      3
885
#define FF_ER_VERY_AGGRESSIVE 4
886 ae72cda6 Nick Kurshev
    
887 6b72ac63 Michael Niedermayer
    /**
888 1e491e29 Michael Niedermayer
     * called at the beginning of each frame to get a buffer for it.
889
     * if pic.reference is set then the frame will be read later by lavc
890 3bb07d61 Michael Niedermayer
     * width and height should be rounded up to the next multiple of 16
891 64863965 Michael Niedermayer
     * - encoding: unused
892
     * - decoding: set by lavc, user can override
893 b71901e6 Michael Niedermayer
     */
894 492cd3a9 Michael Niedermayer
    int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
895 b71901e6 Michael Niedermayer
    
896
    /**
897 1e491e29 Michael Niedermayer
     * called to release buffers which where allocated with get_buffer.
898
     * a released buffer can be reused in get_buffer()
899
     * pic.data[*] must be set to NULL
900 64863965 Michael Niedermayer
     * - encoding: unused
901
     * - decoding: set by lavc, user can override
902 b71901e6 Michael Niedermayer
     */
903 492cd3a9 Michael Niedermayer
    void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
904 0fd90455 Michael Niedermayer
905 b71901e6 Michael Niedermayer
    /**
906 64863965 Michael Niedermayer
     * is 1 if the decoded stream contains b frames, 0 otherwise.
907
     * - encoding: unused
908
     * - decoding: set by lavc
909 b71901e6 Michael Niedermayer
     */
910
    int has_b_frames;
911
    
912 64863965 Michael Niedermayer
    int block_align; ///< used by some WAV based audio codecs
913 ce980a95 Michael Niedermayer
    
914 64863965 Michael Niedermayer
    int parse_only; /* - decoding only: if true, only parsing is done
915 917e06c8 Fabrice Bellard
                       (function avcodec_parse_frame()). The frame
916
                       data is returned. Only MPEG codecs support this now. */
917 ce980a95 Michael Niedermayer
    
918 b71901e6 Michael Niedermayer
    /**
919 e4eadb4b Michael Niedermayer
     * 0-> h263 quant 1-> mpeg quant.
920 64863965 Michael Niedermayer
     * - encoding: set by user.
921
     * - decoding: unused
922 b71901e6 Michael Niedermayer
     */
923
    int mpeg_quant;
924 ce980a95 Michael Niedermayer
    
925 b71901e6 Michael Niedermayer
    /**
926 64863965 Michael Niedermayer
     * pass1 encoding statistics output buffer.
927
     * - encoding: set by lavc
928
     * - decoding: unused
929 b71901e6 Michael Niedermayer
     */
930 64863965 Michael Niedermayer
    char *stats_out;
931 b71901e6 Michael Niedermayer
    
932
    /**
933
     * pass2 encoding statistics input buffer.
934
     * concatenated stuff from stats_out of pass1 should be placed here
935 64863965 Michael Niedermayer
     * - encoding: allocated/set/freed by user
936
     * - decoding: unused
937 b71901e6 Michael Niedermayer
     */
938
    char *stats_in;
939
    
940
    /**
941 64863965 Michael Niedermayer
     * ratecontrol qmin qmax limiting method.
942 b71901e6 Michael Niedermayer
     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
943 64863965 Michael Niedermayer
     * - encoding: set by user.
944
     * - decoding: unused
945 b71901e6 Michael Niedermayer
     */
946 ce980a95 Michael Niedermayer
    float rc_qsquish;
947 b71901e6 Michael Niedermayer
948 ce980a95 Michael Niedermayer
    float rc_qmod_amp;
949
    int rc_qmod_freq;
950 b71901e6 Michael Niedermayer
    
951
    /**
952 64863965 Michael Niedermayer
     * ratecontrol override, see RcOverride.
953
     * - encoding: allocated/set/freed by user.
954
     * - decoding: unused
955 b71901e6 Michael Niedermayer
     */
956 ce980a95 Michael Niedermayer
    RcOverride *rc_override;
957
    int rc_override_count;
958 b71901e6 Michael Niedermayer
    
959
    /**
960 64863965 Michael Niedermayer
     * rate control equation.
961
     * - encoding: set by user
962
     * - decoding: unused
963 b71901e6 Michael Niedermayer
     */
964 ce980a95 Michael Niedermayer
    char *rc_eq;
965 b71901e6 Michael Niedermayer
    
966
    /**
967 64863965 Michael Niedermayer
     * maximum bitrate.
968
     * - encoding: set by user.
969
     * - decoding: unused
970 b71901e6 Michael Niedermayer
     */
971 ce980a95 Michael Niedermayer
    int rc_max_rate;
972 b71901e6 Michael Niedermayer
    
973
    /**
974 64863965 Michael Niedermayer
     * minimum bitrate.
975
     * - encoding: set by user.
976
     * - decoding: unused
977 b71901e6 Michael Niedermayer
     */
978 ce980a95 Michael Niedermayer
    int rc_min_rate;
979 b71901e6 Michael Niedermayer
    
980
    /**
981 64863965 Michael Niedermayer
     * decoder bitstream buffer size.
982
     * - encoding: set by user.
983
     * - decoding: unused
984 b71901e6 Michael Niedermayer
     */
985 ce980a95 Michael Niedermayer
    int rc_buffer_size;
986
    float rc_buffer_aggressivity;
987 b71901e6 Michael Niedermayer
988
    /**
989 64863965 Michael Niedermayer
     * qscale factor between p and i frames.
990 a1e257b2 Michael Niedermayer
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
991
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
992 64863965 Michael Niedermayer
     * - encoding: set by user.
993
     * - decoding: unused
994 b71901e6 Michael Niedermayer
     */
995
    float i_quant_factor;
996
    
997
    /**
998 64863965 Michael Niedermayer
     * qscale offset between p and i frames.
999
     * - encoding: set by user.
1000
     * - decoding: unused
1001 b71901e6 Michael Niedermayer
     */
1002
    float i_quant_offset;
1003
    
1004
    /**
1005 64863965 Michael Niedermayer
     * initial complexity for pass1 ratecontrol.
1006
     * - encoding: set by user.
1007
     * - decoding: unused
1008 b71901e6 Michael Niedermayer
     */
1009 ce980a95 Michael Niedermayer
    float rc_initial_cplx;
1010 917e06c8 Fabrice Bellard
1011 b71901e6 Michael Niedermayer
    /**
1012 64863965 Michael Niedermayer
     * dct algorithm, see FF_DCT_* below.
1013
     * - encoding: set by user
1014
     * - decoding: unused
1015 b71901e6 Michael Niedermayer
     */
1016 28db7fce Michael Niedermayer
    int dct_algo;
1017 c7e07931 Martin Olschewski
#define FF_DCT_AUTO    0
1018 28db7fce Michael Niedermayer
#define FF_DCT_FASTINT 1
1019 c7e07931 Martin Olschewski
#define FF_DCT_INT     2
1020
#define FF_DCT_MMX     3
1021
#define FF_DCT_MLIB    4
1022 05c4072b Michael Niedermayer
#define FF_DCT_ALTIVEC 5
1023 65e4c8c9 Michael Niedermayer
#define FF_DCT_FAAN    6
1024 c5d309f2 Michael Niedermayer
    
1025
    /**
1026 64863965 Michael Niedermayer
     * luminance masking (0-> disabled).
1027
     * - encoding: set by user
1028
     * - decoding: unused
1029 c5d309f2 Michael Niedermayer
     */
1030
    float lumi_masking;
1031
    
1032
    /**
1033 64863965 Michael Niedermayer
     * temporary complexity masking (0-> disabled).
1034
     * - encoding: set by user
1035
     * - decoding: unused
1036 c5d309f2 Michael Niedermayer
     */
1037
    float temporal_cplx_masking;
1038
    
1039
    /**
1040 64863965 Michael Niedermayer
     * spatial complexity masking (0-> disabled).
1041
     * - encoding: set by user
1042
     * - decoding: unused
1043 c5d309f2 Michael Niedermayer
     */
1044
    float spatial_cplx_masking;
1045
    
1046
    /**
1047 64863965 Michael Niedermayer
     * p block masking (0-> disabled).
1048
     * - encoding: set by user
1049
     * - decoding: unused
1050 c5d309f2 Michael Niedermayer
     */
1051
    float p_masking;
1052 15415af4 Michael Niedermayer
1053 5e746b99 Michael Niedermayer
    /**
1054 64863965 Michael Niedermayer
     * darkness masking (0-> disabled).
1055
     * - encoding: set by user
1056
     * - decoding: unused
1057 5e746b99 Michael Niedermayer
     */
1058
    float dark_masking;
1059 0c2dd16e Michael Niedermayer
    
1060 3a694b04 Nick Kurshev
    
1061
    /* for binary compatibility */
1062
    int unused;
1063
    
1064 0c2dd16e Michael Niedermayer
    /**
1065 64863965 Michael Niedermayer
     * idct algorithm, see FF_IDCT_* below.
1066
     * - encoding: set by user
1067
     * - decoding: set by user
1068 2ad1516a Michael Niedermayer
     */
1069
    int idct_algo;
1070
#define FF_IDCT_AUTO         0
1071
#define FF_IDCT_INT          1
1072
#define FF_IDCT_SIMPLE       2
1073
#define FF_IDCT_SIMPLEMMX    3
1074
#define FF_IDCT_LIBMPEG2MMX  4
1075
#define FF_IDCT_PS2          5
1076
#define FF_IDCT_MLIB         6
1077
#define FF_IDCT_ARM          7
1078 05c4072b Michael Niedermayer
#define FF_IDCT_ALTIVEC      8
1079 b82cdc72 Michael Niedermayer
#define FF_IDCT_SH4          9
1080 bd7d1ea7 Alex Beregszaszi
#define FF_IDCT_SIMPLEARM    10
1081 2ad1516a Michael Niedermayer
1082 144f0625 Michael Niedermayer
    /**
1083 64863965 Michael Niedermayer
     * slice count.
1084
     * - encoding: set by lavc
1085
     * - decoding: set by user (or 0)
1086 144f0625 Michael Niedermayer
     */
1087
    int slice_count;
1088
    /**
1089 64863965 Michael Niedermayer
     * slice offsets in the frame in bytes.
1090
     * - encoding: set/allocated by lavc
1091
     * - decoding: set/allocated by user (or NULL)
1092 144f0625 Michael Niedermayer
     */
1093
    int *slice_offset;
1094
1095 4d2858de Michael Niedermayer
    /**
1096 64863965 Michael Niedermayer
     * error concealment flags.
1097
     * - encoding: unused
1098
     * - decoding: set by user
1099 4d2858de Michael Niedermayer
     */
1100
    int error_concealment;
1101
#define FF_EC_GUESS_MVS   1
1102
#define FF_EC_DEBLOCK     2
1103
1104 6b72ac63 Michael Niedermayer
    /**
1105 bec89a84 Zdenek Kabelac
     * dsp_mask could be add used to disable unwanted CPU features
1106 8350df97 Zdenek Kabelac
     * CPU features (i.e. MMX, SSE. ...)
1107 bec89a84 Zdenek Kabelac
     *
1108
     * with FORCE flag you may instead enable given CPU features
1109
     * (Dangerous: usable in case of misdetection, improper usage however will
1110
     * result into program crash)
1111
     */
1112
    unsigned dsp_mask;
1113
#define FF_MM_FORCE        0x80000000 /* force usage of selected flags (OR) */
1114
    /* lower 16 bits - CPU features */
1115
#ifdef HAVE_MMX
1116
#define FF_MM_MMX        0x0001 /* standard MMX */
1117
#define FF_MM_3DNOW        0x0004 /* AMD 3DNOW */
1118
#define FF_MM_MMXEXT        0x0002 /* SSE integer functions or AMD MMX ext */
1119
#define FF_MM_SSE        0x0008 /* SSE functions */
1120
#define FF_MM_SSE2        0x0010 /* PIV SSE2 functions */
1121
#endif /* HAVE_MMX */
1122 11f18faf Michael Niedermayer
1123
    /**
1124 64863965 Michael Niedermayer
     * bits per sample/pixel from the demuxer (needed for huffyuv).
1125
     * - encoding: set by lavc
1126
     * - decoding: set by user
1127 11f18faf Michael Niedermayer
     */
1128
     int bits_per_sample;
1129
    
1130
    /**
1131 64863965 Michael Niedermayer
     * prediction method (needed for huffyuv).
1132
     * - encoding: set by user
1133
     * - decoding: unused
1134 11f18faf Michael Niedermayer
     */
1135
     int prediction_method;
1136
#define FF_PRED_LEFT   0
1137
#define FF_PRED_PLANE  1
1138
#define FF_PRED_MEDIAN 2
1139 5d3cea3a Michael Niedermayer
    
1140
    /**
1141 5ff85f1d Michael Niedermayer
     * sample aspect ratio (0 if unknown).
1142 1f26c6f3 Michael Niedermayer
     * numerator and denominator must be relative prime and smaller then 256 for some video standards
1143 64863965 Michael Niedermayer
     * - encoding: set by user.
1144
     * - decoding: set by lavc.
1145 5d3cea3a Michael Niedermayer
     */
1146 5ff85f1d Michael Niedermayer
    AVRational sample_aspect_ratio;
1147 1e491e29 Michael Niedermayer
1148
    /**
1149 64863965 Michael Niedermayer
     * the picture in the bitstream.
1150
     * - encoding: set by lavc
1151
     * - decoding: set by lavc
1152 1e491e29 Michael Niedermayer
     */
1153 492cd3a9 Michael Niedermayer
    AVFrame *coded_frame;
1154 c8c437bc Michael Niedermayer
1155
    /**
1156 64863965 Michael Niedermayer
     * debug.
1157
     * - encoding: set by user.
1158
     * - decoding: set by user.
1159 c8c437bc Michael Niedermayer
     */
1160
    int debug;
1161
#define FF_DEBUG_PICT_INFO 1
1162
#define FF_DEBUG_RC        2
1163
#define FF_DEBUG_BITSTREAM 4
1164
#define FF_DEBUG_MB_TYPE   8
1165
#define FF_DEBUG_QP        16
1166
#define FF_DEBUG_MV        32
1167 8289c6fa Wolfgang Hesseler
#define FF_DEBUG_DCT_COEFF 0x00000040
1168 41773b73 Michael Niedermayer
#define FF_DEBUG_SKIP      0x00000080
1169
#define FF_DEBUG_STARTCODE 0x00000100
1170
#define FF_DEBUG_PTS       0x00000200
1171 46b4feec Michael Niedermayer
#define FF_DEBUG_ER        0x00000400
1172 0da71265 Michael Niedermayer
#define FF_DEBUG_MMCO      0x00000800
1173 8fc6c2b5 Michael Niedermayer
#define FF_DEBUG_BUGS      0x00001000
1174 864119b6 Michael Niedermayer
#define FF_DEBUG_VIS_QP    0x00002000
1175
#define FF_DEBUG_VIS_MB_TYPE 0x00004000
1176 140cb663 Michael Niedermayer
    
1177
    /**
1178 0c9bbaec Wolfgang Hesseler
     * debug.
1179
     * - encoding: set by user.
1180
     * - decoding: set by user.
1181
     */
1182
    int debug_mv;
1183
#define FF_DEBUG_VIS_MV_P_FOR  0x00000001 //visualize forward predicted MVs of P frames
1184
#define FF_DEBUG_VIS_MV_B_FOR  0x00000002 //visualize forward predicted MVs of B frames
1185
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1186
1187
    /**
1188 64863965 Michael Niedermayer
     * error.
1189
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1190
     * - decoding: unused
1191 140cb663 Michael Niedermayer
     */
1192
    uint64_t error[4];
1193 17a70fde Michael Niedermayer
    
1194
    /**
1195 64863965 Michael Niedermayer
     * minimum MB quantizer.
1196
     * - encoding: set by user.
1197
     * - decoding: unused
1198 17a70fde Michael Niedermayer
     */
1199
    int mb_qmin;
1200
1201
    /**
1202 64863965 Michael Niedermayer
     * maximum MB quantizer.
1203
     * - encoding: set by user.
1204
     * - decoding: unused
1205 17a70fde Michael Niedermayer
     */
1206
    int mb_qmax;
1207 1457ab52 Michael Niedermayer
    
1208
    /**
1209 64863965 Michael Niedermayer
     * motion estimation compare function.
1210
     * - encoding: set by user.
1211
     * - decoding: unused
1212 1457ab52 Michael Niedermayer
     */
1213
    int me_cmp;
1214
    /**
1215 64863965 Michael Niedermayer
     * subpixel motion estimation compare function.
1216
     * - encoding: set by user.
1217
     * - decoding: unused
1218 1457ab52 Michael Niedermayer
     */
1219
    int me_sub_cmp;
1220
    /**
1221 64863965 Michael Niedermayer
     * macroblock compare function (not supported yet).
1222
     * - encoding: set by user.
1223
     * - decoding: unused
1224 1457ab52 Michael Niedermayer
     */
1225
    int mb_cmp;
1226 622348f9 Michael Niedermayer
    /**
1227
     * interlaced dct compare function
1228
     * - encoding: set by user.
1229
     * - decoding: unused
1230
     */
1231
    int ildct_cmp;
1232 1457ab52 Michael Niedermayer
#define FF_CMP_SAD  0
1233
#define FF_CMP_SSE  1
1234
#define FF_CMP_SATD 2
1235
#define FF_CMP_DCT  3
1236
#define FF_CMP_PSNR 4
1237
#define FF_CMP_BIT  5
1238
#define FF_CMP_RD   6
1239
#define FF_CMP_ZERO 7
1240 622348f9 Michael Niedermayer
#define FF_CMP_VSAD 8
1241
#define FF_CMP_VSSE 9
1242 1457ab52 Michael Niedermayer
#define FF_CMP_CHROMA 256
1243
    
1244
    /**
1245 64863965 Michael Niedermayer
     * ME diamond size & shape.
1246
     * - encoding: set by user.
1247
     * - decoding: unused
1248 1457ab52 Michael Niedermayer
     */
1249
    int dia_size;
1250 b07a5980 Michael Niedermayer
1251
    /**
1252 64863965 Michael Niedermayer
     * amount of previous MV predictors (2a+1 x 2a+1 square).
1253
     * - encoding: set by user.
1254
     * - decoding: unused
1255 b07a5980 Michael Niedermayer
     */
1256
    int last_predictor_count;
1257 70ac76c0 Michael Niedermayer
1258 f5fb6b34 Michael Niedermayer
    /**
1259 64863965 Michael Niedermayer
     * pre pass for motion estimation.
1260
     * - encoding: set by user.
1261
     * - decoding: unused
1262 f5fb6b34 Michael Niedermayer
     */
1263
    int pre_me;
1264 b07a5980 Michael Niedermayer
1265 70ac76c0 Michael Niedermayer
    /**
1266 64863965 Michael Niedermayer
     * motion estimation pre pass compare function.
1267
     * - encoding: set by user.
1268
     * - decoding: unused
1269 70ac76c0 Michael Niedermayer
     */
1270
    int me_pre_cmp;
1271 826f429a Michael Niedermayer
1272 70ac76c0 Michael Niedermayer
    /**
1273 64863965 Michael Niedermayer
     * ME pre pass diamond size & shape.
1274
     * - encoding: set by user.
1275
     * - decoding: unused
1276 70ac76c0 Michael Niedermayer
     */
1277
    int pre_dia_size;
1278
1279 826f429a Michael Niedermayer
    /**
1280 64863965 Michael Niedermayer
     * subpel ME quality.
1281
     * - encoding: set by user.
1282
     * - decoding: unused
1283 826f429a Michael Niedermayer
     */
1284
    int me_subpel_quality;
1285
1286 a33c7159 Michael Niedermayer
    /**
1287 64863965 Michael Niedermayer
     * callback to negotiate the pixelFormat.
1288 a33c7159 Michael Niedermayer
     * @param fmt is the list of formats which are supported by the codec,
1289
     * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1290
     * the first is allways the native one
1291
     * @return the choosen format
1292 64863965 Michael Niedermayer
     * - encoding: unused
1293
     * - decoding: set by user, if not set then the native format will always be choosen
1294 a33c7159 Michael Niedermayer
     */
1295
    enum PixelFormat (*get_format)(struct AVCodecContext *s, enum PixelFormat * fmt);
1296 e2f9490e Fabrice Bellard
1297
    /**
1298
     * DTG active format information (additionnal aspect ratio
1299
     * information only used in DVB MPEG2 transport streams). 0 if
1300
     * not set.
1301
     * 
1302 64863965 Michael Niedermayer
     * - encoding: unused.
1303
     * - decoding: set by decoder 
1304 e2f9490e Fabrice Bellard
     */
1305
    int dtg_active_format;
1306
#define FF_DTG_AFD_SAME         8
1307
#define FF_DTG_AFD_4_3          9
1308
#define FF_DTG_AFD_16_9         10
1309
#define FF_DTG_AFD_14_9         11
1310
#define FF_DTG_AFD_4_3_SP_14_9  13
1311
#define FF_DTG_AFD_16_9_SP_14_9 14
1312
#define FF_DTG_AFD_SP_4_3       15
1313
1314 ebbcdc9a Michael Niedermayer
    /**
1315
     * Maximum motion estimation search range in subpel units.
1316
     * if 0 then no limit
1317
     * 
1318 64863965 Michael Niedermayer
     * - encoding: set by user.
1319
     * - decoding: unused.
1320 ebbcdc9a Michael Niedermayer
     */
1321 59e0ac8e Zdenek Kabelac
    int me_range;
1322 ebbcdc9a Michael Niedermayer
1323 65f7062d Michael Niedermayer
    /**
1324
     * frame_rate_base.
1325
     * for variable fps this is 1
1326
     * - encoding: set by user.
1327
     * - decoding: set by lavc.
1328
     * @todo move this after frame_rate
1329
     */
1330
1331 1984f635 Michael Niedermayer
    int frame_rate_base;
1332
    /**
1333
     * intra quantizer bias.
1334
     * - encoding: set by user.
1335
     * - decoding: unused
1336
     */
1337
    int intra_quant_bias;
1338
#define FF_DEFAULT_QUANT_BIAS 999999
1339
    
1340
    /**
1341
     * inter quantizer bias.
1342
     * - encoding: set by user.
1343
     * - decoding: unused
1344
     */
1345
    int inter_quant_bias;
1346 5cd62665 Zdenek Kabelac
1347
    /**
1348
     * color table ID.
1349
     * - encoding: unused.
1350
     * - decoding: which clrtable should be used for 8bit RGB images
1351
     *             table have to be stored somewhere FIXME
1352
     */
1353
    int color_table_id;
1354 1984f635 Michael Niedermayer
    
1355 d90cf87b Michael Niedermayer
    /**
1356
     * internal_buffer count. 
1357
     * Dont touch, used by lavc default_get_buffer()
1358
     */
1359
    int internal_buffer_count;
1360
    
1361
    /**
1362
     * internal_buffers. 
1363
     * Dont touch, used by lavc default_get_buffer()
1364
     */
1365
    void *internal_buffer;
1366 158c7f05 Michael Niedermayer
1367
#define FF_LAMBDA_SHIFT 7
1368
#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1369
#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1370
#define FF_LAMBDA_MAX (256*128-1)
1371
1372
#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
1373 3d2e8cce Michael Niedermayer
    /**
1374
     * global quality for codecs which cannot change it per frame.
1375
     * this should be proportional to MPEG1/2/4 qscale.
1376
     * - encoding: set by user.
1377
     * - decoding: unused
1378
     */
1379
    int global_quality;
1380 11e659c2 Michael Niedermayer
    
1381
#define FF_CODER_TYPE_VLC   0
1382
#define FF_CODER_TYPE_AC    1
1383
    /**
1384
     * coder type
1385
     * - encoding: set by user.
1386
     * - decoding: unused
1387
     */
1388
    int coder_type;
1389
1390
    /**
1391
     * context model
1392
     * - encoding: set by user.
1393
     * - decoding: unused
1394
     */
1395
    int context_model;
1396 3bb07d61 Michael Niedermayer
    
1397
    /**
1398
     * slice flags
1399
     * - encoding: unused
1400
     * - decoding: set by user.
1401
     */
1402
    int slice_flags;
1403
#define SLICE_FLAG_CODED_ORDER    0x0001 ///< draw_horiz_band() is called in coded order instead of display
1404
#define SLICE_FLAG_ALLOW_FIELD    0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1405
#define SLICE_FLAG_ALLOW_PLANE    0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1406
1407 fb364ada Ivan Kalvachev
    /**
1408
     * XVideo Motion Acceleration
1409
     * - encoding: forbidden
1410
     * - decoding: set by decoder
1411
     */
1412
    int xvmc_acceleration;
1413 7d1c3fc1 Michael Niedermayer
    
1414
    /**
1415
     * macroblock decision mode
1416
     * - encoding: set by user.
1417
     * - decoding: unused
1418
     */
1419
    int mb_decision;
1420
#define FF_MB_DECISION_SIMPLE 0        ///< uses mb_cmp
1421
#define FF_MB_DECISION_BITS   1        ///< chooses the one which needs the fewest bits
1422
#define FF_MB_DECISION_RD     2        ///< rate distoration
1423 d6eb3c50 Michael Niedermayer
1424
    /**
1425
     * custom intra quantization matrix
1426
     * - encoding: set by user, can be NULL
1427
     * - decoding: set by lavc
1428
     */
1429
    uint16_t *intra_matrix;
1430
1431
    /**
1432
     * custom inter quantization matrix
1433
     * - encoding: set by user, can be NULL
1434
     * - decoding: set by lavc
1435
     */
1436
    uint16_t *inter_matrix;
1437 7d1c3fc1 Michael Niedermayer
    
1438 541ae140 Michael Niedermayer
    /**
1439
     * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1440
     * this is used to workaround some encoder bugs
1441
     * - encoding: unused
1442
     * - decoding: set by user, will be converted to upper case by lavc during init
1443
     */
1444
    unsigned int stream_codec_tag;
1445 05fbd0a2 Michael Niedermayer
1446
    /**
1447
     * scene change detection threshold.
1448
     * 0 is default, larger means fewer detected scene changes
1449
     * - encoding: set by user.
1450
     * - decoding: unused
1451
     */
1452
    int scenechange_threshold;
1453 158c7f05 Michael Niedermayer
1454
    /**
1455
     * minimum lagrange multipler
1456
     * - encoding: set by user.
1457
     * - decoding: unused
1458
     */
1459
    int lmin;
1460
1461
    /**
1462
     * maximum lagrange multipler
1463
     * - encoding: set by user.
1464
     * - decoding: unused
1465
     */
1466
    int lmax;
1467 2a2bbcb0 Mike Melanson
1468
    /**
1469
     * Palette control structure
1470
     * - encoding: ??? (no palette-enabled encoder yet)
1471
     * - decoding: set by user.
1472
     */
1473
    struct AVPaletteControl *palctrl;
1474 821cb11f Michael Niedermayer
1475
    /**
1476
     * noise reduction strength
1477
     * - encoding: set by user.
1478
     * - decoding: unused
1479
     */
1480
    int noise_reduction;
1481 fa384dcc Michael Niedermayer
    
1482 074c4ca7 Roberto Togni
    /**
1483 e1c2a5a0 Roberto Togni
     * called at the beginning of a frame to get cr buffer for it.
1484
     * buffer type (size, hints) must be the same. lavc won't check it.
1485
     * lavc will pass previous buffer in pic, function should return
1486
     * same buffer or new buffer with old frame "painted" into it.
1487
     * if pic.data[0] == NULL must behave like get_buffer().
1488 074c4ca7 Roberto Togni
     * - encoding: unused
1489 e1c2a5a0 Roberto Togni
     * - decoding: set by lavc, user can override
1490 074c4ca7 Roberto Togni
     */
1491 e1c2a5a0 Roberto Togni
    int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
1492 ba58dabc Michael Niedermayer
1493
    /**
1494
     * number of bits which should be loaded into the rc buffer before decoding starts
1495
     * - encoding: set by user.
1496
     * - decoding: unused
1497
     */
1498
    int rc_initial_buffer_occupancy;
1499
1500
    /**
1501
     *
1502
     * - encoding: set by user.
1503
     * - decoding: unused
1504
     */
1505
    int inter_threshold;
1506
1507
    /**
1508
     * CODEC_FLAG2_*.
1509
     * - encoding: set by user.
1510
     * - decoding: set by user.
1511
     */
1512
    int flags2;
1513 7ebfc0ea Michael Niedermayer
1514
    /**
1515
     * simulates errors in the bitstream to test error concealment.
1516
     * - encoding: set by user.
1517
     * - decoding: unused.
1518
     */
1519
    int error_rate;
1520 a1e257b2 Michael Niedermayer
    
1521
    /**
1522
     * MP3 antialias algorithm, see FF_AA_* below.
1523
     * - encoding: unused
1524
     * - decoding: set by user
1525
     */
1526
    int antialias_algo;
1527
#define FF_AA_AUTO    0
1528
#define FF_AA_FASTINT 1 //not implemented yet
1529
#define FF_AA_INT     2
1530
#define FF_AA_FLOAT   3
1531 77ea0d4b Michael Niedermayer
    /**
1532
     * Quantizer noise shaping.
1533
     * - encoding: set by user
1534
     * - decoding: unused
1535
     */
1536
    int quantizer_noise_shaping;
1537 9c3d33d6 Michael Niedermayer
1538
    /**
1539
     * Thread count.
1540
     * is used to decide how many independant tasks should be passed to execute()
1541
     * - encoding: set by user
1542
     * - decoding: set by user
1543
     */
1544
    int thread_count;
1545
    
1546
    /**
1547
     * the codec may call this to execute several independant things. it will return only after
1548
     * finishing all tasks, the user may replace this with some multithreaded implementation, the
1549
     * default implementation will execute the parts serially
1550 399cec2f Michael Niedermayer
     * @param count the number of things to execute
1551 9c3d33d6 Michael Niedermayer
     * - encoding: set by lavc, user can override
1552
     * - decoding: set by lavc, user can override
1553
     */
1554
    int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
1555
    
1556
    /**
1557
     * Thread opaque.
1558
     * can be used by execute() to store some per AVCodecContext stuff.
1559
     * - encoding: set by execute()
1560
     * - decoding: set by execute()
1561
     */
1562
    void *thread_opaque;
1563 de6d9b64 Fabrice Bellard
} AVCodecContext;
1564
1565 97d96aaa Zdenek Kabelac
1566 64863965 Michael Niedermayer
/**
1567
 * AVOption.
1568
 */
1569 97d96aaa Zdenek Kabelac
typedef struct AVOption {
1570
    /** options' name */
1571
    const char *name; /* if name is NULL, it indicates a link to next */
1572 bec89a84 Zdenek Kabelac
    /** short English text help or const struct AVOption* subpointer */
1573
    const char *help; //        const struct AVOption* sub;
1574 97d96aaa Zdenek Kabelac
    /** offset to context structure where the parsed value should be stored */
1575
    int offset;
1576
    /** options' type */
1577
    int type;
1578 64863965 Michael Niedermayer
#define FF_OPT_TYPE_BOOL 1      ///< boolean - true,1,on  (or simply presence)
1579
#define FF_OPT_TYPE_DOUBLE 2    ///< double
1580
#define FF_OPT_TYPE_INT 3       ///< integer
1581
#define FF_OPT_TYPE_STRING 4    ///< string (finished with \0)
1582
#define FF_OPT_TYPE_MASK 0x1f        ///< mask for types - upper bits are various flags
1583 97d96aaa Zdenek Kabelac
//#define FF_OPT_TYPE_EXPERT 0x20 // flag for expert option
1584
#define FF_OPT_TYPE_FLAG (FF_OPT_TYPE_BOOL | 0x40)
1585
#define FF_OPT_TYPE_RCOVERRIDE (FF_OPT_TYPE_STRING | 0x80)
1586
    /** min value  (min == max   ->  no limits) */
1587
    double min;
1588
    /** maximum value for double/int */
1589
    double max;
1590
    /** default boo [0,1]l/double/int value */
1591
    double defval;
1592
    /**
1593
     * default string value (with optional semicolon delimited extra option-list
1594
     * i.e.   option1;option2;option3
1595
     * defval might select other then first argument as default
1596
     */
1597
    const char *defstr;
1598
#define FF_OPT_MAX_DEPTH 10
1599
} AVOption;
1600
1601 64863965 Michael Niedermayer
/**
1602 bec89a84 Zdenek Kabelac
 * Parse option(s) and sets fields in passed structure
1603
 * @param strct        structure where the parsed results will be written
1604
 * @param list  list with AVOptions
1605
 * @param opts        string with options for parsing
1606
 */
1607
int avoption_parse(void* strct, const AVOption* list, const char* opts);
1608
1609
1610
/**
1611 64863965 Michael Niedermayer
 * AVCodec.
1612
 */
1613 de6d9b64 Fabrice Bellard
typedef struct AVCodec {
1614 18f77016 Zdenek Kabelac
    const char *name;
1615 5d234974 Zdenek Kabelac
    enum CodecType type;
1616 de6d9b64 Fabrice Bellard
    int id;
1617
    int priv_data_size;
1618
    int (*init)(AVCodecContext *);
1619 0c1a9eda Zdenek Kabelac
    int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
1620 de6d9b64 Fabrice Bellard
    int (*close)(AVCodecContext *);
1621 0fd90455 Michael Niedermayer
    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
1622 0c1a9eda Zdenek Kabelac
                  uint8_t *buf, int buf_size);
1623 bf89e6b1 Fabrice Bellard
    int capabilities;
1624 97d96aaa Zdenek Kabelac
    const AVOption *options;
1625 de6d9b64 Fabrice Bellard
    struct AVCodec *next;
1626 7a06ff14 Michael Niedermayer
    void (*flush)(AVCodecContext *);
1627 8d52ec7e Michael Niedermayer
    AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
1628 de6d9b64 Fabrice Bellard
} AVCodec;
1629
1630 97d96aaa Zdenek Kabelac
/**
1631 d7425f59 Michael Niedermayer
 * four components are given, that's all.
1632
 * the last component is alpha
1633
 */
1634 de6d9b64 Fabrice Bellard
typedef struct AVPicture {
1635 0c1a9eda Zdenek Kabelac
    uint8_t *data[4];
1636 cd394651 Michael Niedermayer
    int linesize[4];       ///< number of bytes per line
1637 de6d9b64 Fabrice Bellard
} AVPicture;
1638
1639 ba118447 Mike Melanson
/**
1640
 * AVPaletteControl
1641
 * This structure defines a method for communicating palette changes
1642
 * between and demuxer and a decoder.
1643
 */
1644 2e99641b Roberto Togni
#define AVPALETTE_SIZE 1024
1645 432d84c3 Michael Niedermayer
#define AVPALETTE_COUNT 256
1646 ba118447 Mike Melanson
typedef struct AVPaletteControl {
1647
1648
    /* demuxer sets this to 1 to indicate the palette has changed;
1649
     * decoder resets to 0 */
1650
    int palette_changed;
1651
1652 2a2bbcb0 Mike Melanson
    /* 4-byte ARGB palette entries, stored in native byte order; note that
1653
     * the individual palette components should be on a 8-bit scale; if
1654
     * the palette data comes from a IBM VGA native format, the component
1655
     * data is probably 6 bits in size and needs to be scaled */
1656 2e99641b Roberto Togni
    unsigned int palette[AVPALETTE_COUNT];
1657 ba118447 Mike Melanson
1658
} AVPaletteControl;
1659
1660 de6d9b64 Fabrice Bellard
extern AVCodec ac3_encoder;
1661
extern AVCodec mp2_encoder;
1662 9d36bdc9 Juanjo
extern AVCodec mp3lame_encoder;
1663 81e0d0b4 Mark Hills
extern AVCodec oggvorbis_encoder;
1664 29d48296 Michael Niedermayer
extern AVCodec faac_encoder;
1665 de6d9b64 Fabrice Bellard
extern AVCodec mpeg1video_encoder;
1666 029911d1 Michael Niedermayer
extern AVCodec mpeg2video_encoder;
1667 de6d9b64 Fabrice Bellard
extern AVCodec h263_encoder;
1668
extern AVCodec h263p_encoder;
1669 d4f5d74a Garrick Meeker
extern AVCodec flv_encoder;
1670 de6d9b64 Fabrice Bellard
extern AVCodec rv10_encoder;
1671 68b94c35 Michael Niedermayer
extern AVCodec rv20_encoder;
1672 de6d9b64 Fabrice Bellard
extern AVCodec mjpeg_encoder;
1673 b1e6b355 Michael Niedermayer
extern AVCodec ljpeg_encoder;
1674 bf89e6b1 Fabrice Bellard
extern AVCodec mpeg4_encoder;
1675 84afee34 Michael Niedermayer
extern AVCodec msmpeg4v1_encoder;
1676
extern AVCodec msmpeg4v2_encoder;
1677
extern AVCodec msmpeg4v3_encoder;
1678 0151a6f5 Michael Niedermayer
extern AVCodec wmv1_encoder;
1679
extern AVCodec wmv2_encoder;
1680 11f18faf Michael Niedermayer
extern AVCodec huffyuv_encoder;
1681 0da71265 Michael Niedermayer
extern AVCodec h264_encoder;
1682 3d2e8cce Michael Niedermayer
extern AVCodec asv1_encoder;
1683 9b56edf5 Michael Niedermayer
extern AVCodec asv2_encoder;
1684 be3564ed Michael Niedermayer
extern AVCodec vcr1_encoder;
1685 5e20f836 Michael Niedermayer
extern AVCodec ffv1_encoder;
1686 c3bf0288 Michael Niedermayer
extern AVCodec mdec_encoder;
1687 a273bbfb Roberto Togni
extern AVCodec zlib_encoder;
1688 de6d9b64 Fabrice Bellard
1689
extern AVCodec h263_decoder;
1690 bf89e6b1 Fabrice Bellard
extern AVCodec mpeg4_decoder;
1691 84afee34 Michael Niedermayer
extern AVCodec msmpeg4v1_decoder;
1692
extern AVCodec msmpeg4v2_decoder;
1693
extern AVCodec msmpeg4v3_decoder;
1694 e1a9dbff Michael Niedermayer
extern AVCodec wmv1_decoder;
1695 0151a6f5 Michael Niedermayer
extern AVCodec wmv2_decoder;
1696 922bc38d Michael Niedermayer
extern AVCodec mpeg1video_decoder;
1697
extern AVCodec mpeg2video_decoder;
1698 c512b303 Ivan Kalvachev
extern AVCodec mpegvideo_decoder;
1699 fb364ada Ivan Kalvachev
extern AVCodec mpeg_xvmc_decoder;
1700 de6d9b64 Fabrice Bellard
extern AVCodec h263i_decoder;
1701 d4f5d74a Garrick Meeker
extern AVCodec flv_decoder;
1702 de6d9b64 Fabrice Bellard
extern AVCodec rv10_decoder;
1703 68b94c35 Michael Niedermayer
extern AVCodec rv20_decoder;
1704 be8ffec9 Nick Kurshev
extern AVCodec svq1_decoder;
1705 8b82a956 Michael Niedermayer
extern AVCodec svq3_decoder;
1706 020fcc94 Fabrice Bellard
extern AVCodec dvvideo_decoder;
1707 bc8d1857 Fabrice Bellard
extern AVCodec wmav1_decoder;
1708
extern AVCodec wmav2_decoder;
1709 4e66ab3b Fabrice Bellard
extern AVCodec mjpeg_decoder;
1710 b135d9fb Alex Beregszaszi
extern AVCodec mjpegb_decoder;
1711 5e83dec4 Alex Beregszaszi
extern AVCodec sp5x_decoder;
1712 4b1f4f23 Juanjo
extern AVCodec mp2_decoder;
1713 a96b68b7 Fabrice Bellard
extern AVCodec mp3_decoder;
1714 3f95e843 François Revol
extern AVCodec mace3_decoder;
1715
extern AVCodec mace6_decoder;
1716 11f18faf Michael Niedermayer
extern AVCodec huffyuv_decoder;
1717 3aca208a Mark Hills
extern AVCodec oggvorbis_decoder;
1718 f70f7c6d Michael Niedermayer
extern AVCodec cyuv_decoder;
1719 0da71265 Michael Niedermayer
extern AVCodec h264_decoder;
1720 deabd4fd Mike Melanson
extern AVCodec indeo3_decoder;
1721 d86053a4 Mike Melanson
extern AVCodec vp3_decoder;
1722 f44ee2c3 Alex Beregszaszi
extern AVCodec theora_decoder;
1723 891f64b3 joca@rixmail.se
extern AVCodec amr_nb_decoder;
1724 bc634f6f Zdenek Kabelac
extern AVCodec amr_nb_encoder;
1725 d663a1fd Michael Niedermayer
extern AVCodec amr_wb_encoder;
1726
extern AVCodec amr_wb_decoder;
1727 280bd7b7 Zdenek Kabelac
extern AVCodec aac_decoder;
1728
extern AVCodec mpeg4aac_decoder;
1729 3d2e8cce Michael Niedermayer
extern AVCodec asv1_decoder;
1730 9b56edf5 Michael Niedermayer
extern AVCodec asv2_decoder;
1731 be3564ed Michael Niedermayer
extern AVCodec vcr1_decoder;
1732 3aff069b Alex Beregszaszi
extern AVCodec cljr_decoder;
1733 5e20f836 Michael Niedermayer
extern AVCodec ffv1_decoder;
1734 8809cfee Michael Niedermayer
extern AVCodec fourxm_decoder;
1735 c3bf0288 Michael Niedermayer
extern AVCodec mdec_decoder;
1736 3ef8be2b Mike Melanson
extern AVCodec roq_decoder;
1737
extern AVCodec interplay_video_decoder;
1738 9937e686 Mike Melanson
extern AVCodec xan_wc3_decoder;
1739 2fdf638b Mike Melanson
extern AVCodec rpza_decoder;
1740
extern AVCodec cinepak_decoder;
1741
extern AVCodec msrle_decoder;
1742
extern AVCodec msvideo1_decoder;
1743 6955a882 Mike Melanson
extern AVCodec vqa_decoder;
1744 4120a53a Mike Melanson
extern AVCodec idcin_decoder;
1745 1dc1ed99 Roberto Togni
extern AVCodec eightbps_decoder;
1746 11e29a41 Mike Melanson
extern AVCodec smc_decoder;
1747 42cad81a Mike Melanson
extern AVCodec flic_decoder;
1748 fafa0b75 Mike Melanson
extern AVCodec vmdvideo_decoder;
1749
extern AVCodec vmdaudio_decoder;
1750 9a4117d5 Mike Melanson
extern AVCodec truemotion1_decoder;
1751 a273bbfb Roberto Togni
extern AVCodec mszh_decoder;
1752
extern AVCodec zlib_decoder;
1753 b8414bbd Nick Kurshev
extern AVCodec ra_144_decoder;
1754
extern AVCodec ra_288_decoder;
1755 3ef8be2b Mike Melanson
extern AVCodec roq_dpcm_decoder;
1756
extern AVCodec interplay_dpcm_decoder;
1757 9937e686 Mike Melanson
extern AVCodec xan_dpcm_decoder;
1758 070ed1bc Mike Melanson
extern AVCodec qtrle_decoder;
1759 ac2570a8 Michael Niedermayer
extern AVCodec flac_decoder;
1760 de6d9b64 Fabrice Bellard
1761 a96b68b7 Fabrice Bellard
/* pcm codecs */
1762
#define PCM_CODEC(id, name) \
1763
extern AVCodec name ## _decoder; \
1764 f11d3f23 Michael Niedermayer
extern AVCodec name ## _encoder
1765 a96b68b7 Fabrice Bellard
1766
PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
1767
PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
1768
PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
1769
PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
1770
PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
1771
PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
1772
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
1773
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
1774
1775 0147f198 François Revol
/* adpcm codecs */
1776
1777
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
1778
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
1779 9937e686 Mike Melanson
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
1780
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
1781 2fdf638b Mike Melanson
PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
1782 7d8379f2 Mike Melanson
PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
1783 0147f198 François Revol
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
1784 4b465299 Michael Niedermayer
PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
1785 fc384777 Mike Melanson
PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
1786
PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
1787 7d8379f2 Mike Melanson
PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
1788 e5966052 Roman Shaposhnik
PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
1789 0147f198 François Revol
1790 a96b68b7 Fabrice Bellard
#undef PCM_CODEC
1791
1792
/* dummy raw video codec */
1793 63167088 Roman Shaposhnik
extern AVCodec rawvideo_encoder;
1794
extern AVCodec rawvideo_decoder;
1795 de6d9b64 Fabrice Bellard
1796
/* the following codecs use external GPL libs */
1797
extern AVCodec ac3_decoder;
1798
1799
/* resample.c */
1800
1801
struct ReSampleContext;
1802
1803
typedef struct ReSampleContext ReSampleContext;
1804
1805
ReSampleContext *audio_resample_init(int output_channels, int input_channels, 
1806
                                     int output_rate, int input_rate);
1807
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
1808
void audio_resample_close(ReSampleContext *s);
1809
1810
/* YUV420 format is assumed ! */
1811
1812
struct ImgReSampleContext;
1813
1814
typedef struct ImgReSampleContext ImgReSampleContext;
1815
1816
ImgReSampleContext *img_resample_init(int output_width, int output_height,
1817
                                      int input_width, int input_height);
1818 ab6d194a Michael Niedermayer
1819
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
1820
                                      int iwidth, int iheight,
1821
                                      int topBand, int bottomBand,
1822
                                      int leftBand, int rightBand);
1823
1824 de6d9b64 Fabrice Bellard
void img_resample(ImgReSampleContext *s, 
1825 da64ecc3 Drew Hess
                  AVPicture *output, const AVPicture *input);
1826 de6d9b64 Fabrice Bellard
1827
void img_resample_close(ImgReSampleContext *s);
1828
1829 75917b88 Drew Hess
/**
1830
 * Allocate memory for a picture.  Call avpicture_free to free it.
1831
 *
1832
 * @param picture the picture to be filled in.
1833
 * @param pix_fmt the format of the picture.
1834
 * @param width the width of the picture.
1835
 * @param height the height of the picture.
1836
 * @return 0 if successful, -1 if not.
1837
 */
1838
int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
1839
1840
/* Free a picture previously allocated by avpicture_alloc. */
1841
void avpicture_free(AVPicture *picture);
1842
1843 0c1a9eda Zdenek Kabelac
int avpicture_fill(AVPicture *picture, uint8_t *ptr,
1844 2d1a4094 Fabrice Bellard
                   int pix_fmt, int width, int height);
1845 da64ecc3 Drew Hess
int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
1846 63167088 Roman Shaposhnik
                     unsigned char *dest, int dest_size);
1847 219b06c6 Fabrice Bellard
int avpicture_get_size(int pix_fmt, int width, int height);
1848 dab64ebc Fabrice Bellard
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
1849
const char *avcodec_get_pix_fmt_name(int pix_fmt);
1850 63167088 Roman Shaposhnik
enum PixelFormat avcodec_get_pix_fmt(const char* name);
1851 219b06c6 Fabrice Bellard
1852 fab21997 Fabrice Bellard
#define FF_LOSS_RESOLUTION  0x0001 /* loss due to resolution change */
1853
#define FF_LOSS_DEPTH       0x0002 /* loss due to color depth change */
1854
#define FF_LOSS_COLORSPACE  0x0004 /* loss due to color space conversion */
1855
#define FF_LOSS_ALPHA       0x0008 /* loss of alpha bits */
1856
#define FF_LOSS_COLORQUANT  0x0010 /* loss due to color quantization */
1857
#define FF_LOSS_CHROMA      0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
1858
1859
int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
1860
                             int has_alpha);
1861
int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
1862
                              int has_alpha, int *loss_ptr);
1863
1864 0469baf1 Fabrice Bellard
#define FF_ALPHA_TRANSP       0x0001 /* image has some totally transparent pixels */
1865
#define FF_ALPHA_SEMI_TRANSP  0x0002 /* image has some transparent pixels */
1866 da64ecc3 Drew Hess
int img_get_alpha_info(const AVPicture *src,
1867
                       int pix_fmt, int width, int height);
1868 0469baf1 Fabrice Bellard
1869 219b06c6 Fabrice Bellard
/* convert among pixel formats */
1870
int img_convert(AVPicture *dst, int dst_pix_fmt,
1871 da64ecc3 Drew Hess
                const AVPicture *src, int pix_fmt, 
1872 219b06c6 Fabrice Bellard
                int width, int height);
1873
1874
/* deinterlace a picture */
1875 da64ecc3 Drew Hess
int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
1876 de6d9b64 Fabrice Bellard
                          int pix_fmt, int width, int height);
1877
1878
/* external high level API */
1879
1880
extern AVCodec *first_avcodec;
1881
1882 156e5023 Nick Kurshev
/* returns LIBAVCODEC_VERSION_INT constant */
1883 51a49663 Fabrice Bellard
unsigned avcodec_version(void);
1884 8bceb6af Nick Kurshev
/* returns LIBAVCODEC_BUILD constant */
1885 51a49663 Fabrice Bellard
unsigned avcodec_build(void);
1886 de6d9b64 Fabrice Bellard
void avcodec_init(void);
1887
1888
void register_avcodec(AVCodec *format);
1889
AVCodec *avcodec_find_encoder(enum CodecID id);
1890 98f3b098 Arpi
AVCodec *avcodec_find_encoder_by_name(const char *name);
1891 de6d9b64 Fabrice Bellard
AVCodec *avcodec_find_decoder(enum CodecID id);
1892
AVCodec *avcodec_find_decoder_by_name(const char *name);
1893
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
1894
1895 1e491e29 Michael Niedermayer
void avcodec_get_context_defaults(AVCodecContext *s);
1896 7ffbb60e Falk Hüffner
AVCodecContext *avcodec_alloc_context(void);
1897 492cd3a9 Michael Niedermayer
AVFrame *avcodec_alloc_frame(void);
1898 1e491e29 Michael Niedermayer
1899 492cd3a9 Michael Niedermayer
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
1900
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
1901 d90cf87b Michael Niedermayer
void avcodec_default_free_buffers(AVCodecContext *s);
1902 1e491e29 Michael Niedermayer
1903 5a815088 Michael Niedermayer
int avcodec_thread_init(AVCodecContext *s, int thread_count);
1904
void avcodec_thread_free(AVCodecContext *s);
1905
int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
1906 9c3d33d6 Michael Niedermayer
//FIXME func typedef
1907
1908 7a06ff14 Michael Niedermayer
/**
1909
 * opens / inits the AVCodecContext.
1910
 * not thread save!
1911
 */
1912 de6d9b64 Fabrice Bellard
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
1913 7a06ff14 Michael Niedermayer
1914 0c1a9eda Zdenek Kabelac
int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples, 
1915 de6d9b64 Fabrice Bellard
                         int *frame_size_ptr,
1916 0c1a9eda Zdenek Kabelac
                         uint8_t *buf, int buf_size);
1917 492cd3a9 Michael Niedermayer
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture, 
1918 de6d9b64 Fabrice Bellard
                         int *got_picture_ptr,
1919 0c1a9eda Zdenek Kabelac
                         uint8_t *buf, int buf_size);
1920
int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata, 
1921 917e06c8 Fabrice Bellard
                        int *data_size_ptr,
1922 0c1a9eda Zdenek Kabelac
                        uint8_t *buf, int buf_size);
1923
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
1924 de6d9b64 Fabrice Bellard
                         const short *samples);
1925 0c1a9eda Zdenek Kabelac
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
1926 492cd3a9 Michael Niedermayer
                         const AVFrame *pict);
1927 de6d9b64 Fabrice Bellard
1928
int avcodec_close(AVCodecContext *avctx);
1929
1930
void avcodec_register_all(void);
1931 a96b68b7 Fabrice Bellard
1932 1c2a8c7f Michael Niedermayer
void avcodec_flush_buffers(AVCodecContext *avctx);
1933
1934 14bea432 Michael Niedermayer
/* misc usefull functions */
1935 d8085ea7 Michael Niedermayer
1936
/**
1937
 * returns a single letter to describe the picture type
1938
 */
1939
char av_get_pict_type_char(int pict_type);
1940
1941 14bea432 Michael Niedermayer
/**
1942
 * reduce a fraction.
1943
 * this is usefull for framerate calculations
1944
 * @param max the maximum allowed for dst_nom & dst_den
1945
 * @return 1 if exact, 0 otherwise
1946
 */
1947
int av_reduce(int *dst_nom, int *dst_den, int64_t nom, int64_t den, int64_t max);
1948
1949
/**
1950
 * rescale a 64bit integer.
1951
 * a simple a*b/c isnt possible as it can overflow
1952
 */
1953
int64_t av_rescale(int64_t a, int b, int c);
1954 628d601b Zdenek Kabelac
1955
1956 e8f14793 Zdenek Kabelac
/**
1957
 * Interface for 0.5.0 version
1958
 *
1959
 * do not even think about it's usage for this moment
1960
 */
1961
1962
typedef struct {
1963 64863965 Michael Niedermayer
    /// compressed size used from given memory buffer
1964 e8f14793 Zdenek Kabelac
    int size;
1965
    /// I/P/B frame type
1966
    int frame_type;
1967
} avc_enc_result_t;
1968
1969
/**
1970
 * Commands
1971
 * order can't be changed - once it was defined
1972
 */
1973
typedef enum {
1974
    // general commands
1975
    AVC_OPEN_BY_NAME = 0xACA000,
1976
    AVC_OPEN_BY_CODEC_ID,
1977
    AVC_OPEN_BY_FOURCC,
1978
    AVC_CLOSE,
1979
1980
    AVC_FLUSH,
1981
    // pin - struct { uint8_t* src, uint_t src_size }
1982
    // pout - struct { AVPicture* img, consumed_bytes,
1983
    AVC_DECODE,
1984
    // pin - struct { AVPicture* img, uint8_t* dest, uint_t dest_size }
1985
    // pout - uint_t used_from_dest_size
1986
    AVC_ENCODE, 
1987
1988
    // query/get video commands
1989
    AVC_GET_VERSION = 0xACB000,
1990
    AVC_GET_WIDTH,
1991
    AVC_GET_HEIGHT,
1992
    AVC_GET_DELAY,
1993
    AVC_GET_QUANT_TABLE,
1994
    // ...
1995
1996
    // query/get audio commands
1997
    AVC_GET_FRAME_SIZE = 0xABC000,
1998
1999
    // maybe define some simple structure which
2000
    // might be passed to the user - but they can't
2001
    // contain any codec specific parts and these
2002
    // calls are usualy necessary only few times
2003
2004
    // set video commands
2005
    AVC_SET_WIDTH = 0xACD000,
2006
    AVC_SET_HEIGHT,
2007
2008
    // set video encoding commands
2009
    AVC_SET_FRAME_RATE = 0xACD800,
2010
    AVC_SET_QUALITY,
2011
    AVC_SET_HURRY_UP,
2012
2013
    // set audio commands
2014
    AVC_SET_SAMPLE_RATE = 0xACE000,
2015
    AVC_SET_CHANNELS,
2016
2017
} avc_cmd_t;
2018
2019
/**
2020
 * \param handle  allocated private structure by libavcodec
2021
 *                for initialization pass NULL - will be returned pout
2022
 *                user is supposed to know nothing about its structure
2023
 * \param cmd     type of operation to be performed
2024
 * \param pint    input parameter
2025
 * \param pout    output parameter
2026
 *
2027
 * \returns  command status - eventually for query command it might return
2028
 * integer resulting value
2029
 */
2030
int avcodec(void* handle, avc_cmd_t cmd, void* pin, void* pout);
2031
2032 8424cf50 Fabrice Bellard
/* frame parsing */
2033
typedef struct AVCodecParserContext {
2034
    void *priv_data;
2035
    struct AVCodecParser *parser;
2036
    int64_t frame_offset; /* offset of the current frame */
2037
    int64_t cur_offset; /* current offset 
2038
                           (incremented by each av_parser_parse()) */
2039
    int64_t last_frame_offset; /* offset of the last frame */
2040
    /* video info */
2041
    int pict_type; /* XXX: put it back in AVCodecContext */
2042
    int repeat_pict; /* XXX: put it back in AVCodecContext */
2043 b84f2a35 Fabrice Bellard
    int64_t pts;     /* pts of the current frame */
2044
    int64_t dts;     /* dts of the current frame */
2045
2046
    /* private data */
2047
    int64_t last_pts;
2048
    int64_t last_dts;
2049
2050
#define AV_PARSER_PTS_NB 4
2051
    int cur_frame_start_index;
2052
    int64_t cur_frame_offset[AV_PARSER_PTS_NB];
2053
    int64_t cur_frame_pts[AV_PARSER_PTS_NB];
2054
    int64_t cur_frame_dts[AV_PARSER_PTS_NB];
2055 8424cf50 Fabrice Bellard
} AVCodecParserContext;
2056
2057
typedef struct AVCodecParser {
2058
    int codec_ids[3]; /* several codec IDs are permitted */
2059
    int priv_data_size;
2060
    int (*parser_init)(AVCodecParserContext *s);
2061
    int (*parser_parse)(AVCodecParserContext *s, 
2062
                        AVCodecContext *avctx,
2063
                        uint8_t **poutbuf, int *poutbuf_size, 
2064
                        const uint8_t *buf, int buf_size);
2065
    void (*parser_close)(AVCodecParserContext *s);
2066
    struct AVCodecParser *next;
2067
} AVCodecParser;
2068
2069
extern AVCodecParser *av_first_parser;
2070
2071
void av_register_codec_parser(AVCodecParser *parser);
2072
AVCodecParserContext *av_parser_init(int codec_id);
2073
int av_parser_parse(AVCodecParserContext *s, 
2074
                    AVCodecContext *avctx,
2075
                    uint8_t **poutbuf, int *poutbuf_size, 
2076 b84f2a35 Fabrice Bellard
                    const uint8_t *buf, int buf_size,
2077
                    int64_t pts, int64_t dts);
2078 8424cf50 Fabrice Bellard
void av_parser_close(AVCodecParserContext *s);
2079
2080
extern AVCodecParser mpegvideo_parser;
2081
extern AVCodecParser mpeg4video_parser;
2082
extern AVCodecParser h263_parser;
2083
extern AVCodecParser h264_parser;
2084
extern AVCodecParser mpegaudio_parser;
2085
extern AVCodecParser ac3_parser;
2086
2087 544eb99c Fabrice Bellard
/* memory */
2088 e4eadb4b Michael Niedermayer
void *av_malloc(unsigned int size);
2089 18f77016 Zdenek Kabelac
void *av_mallocz(unsigned int size);
2090 8e1e6f31 Fabrice Bellard
void *av_realloc(void *ptr, unsigned int size);
2091 544eb99c Fabrice Bellard
void av_free(void *ptr);
2092 8e1e6f31 Fabrice Bellard
char *av_strdup(const char *s);
2093 81c5f887 Michael Niedermayer
void av_freep(void *ptr);
2094 97d96aaa Zdenek Kabelac
void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
2095 855ea723 Zdenek Kabelac
/* for static data only */
2096
/* call av_free_static to release all staticaly allocated tables */
2097 628d601b Zdenek Kabelac
void av_free_static(void);
2098 855ea723 Zdenek Kabelac
void *__av_mallocz_static(void** location, unsigned int size);
2099
#define av_mallocz_static(p, s) __av_mallocz_static((void **)(p), s)
2100 544eb99c Fabrice Bellard
2101 fc384777 Mike Melanson
/* add by bero : in adx.c */
2102
int is_adx(const unsigned char *buf,size_t bufsize);
2103
2104 e1c2a5a0 Roberto Togni
void img_copy(AVPicture *dst, const AVPicture *src,
2105
              int pix_fmt, int width, int height);
2106
2107 9b879566 Michel Bardiaux
/* av_log API */
2108
2109
#include <stdarg.h>
2110
2111
#define AV_LOG_ERROR 0
2112
#define AV_LOG_INFO 1
2113
#define AV_LOG_DEBUG 2
2114
2115 bc874dae Michel Bardiaux
extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
2116
extern void av_vlog(void*, int level, const char *fmt, va_list);
2117 9b879566 Michel Bardiaux
extern int av_log_get_level(void);
2118
extern void av_log_set_level(int);
2119 bc874dae Michel Bardiaux
extern void av_log_set_callback(void (*)(void*, int, const char*, va_list));
2120 9b879566 Michel Bardiaux
2121 02d697aa Zdenek Kabelac
#ifdef __cplusplus
2122
}
2123
#endif
2124
2125 a96b68b7 Fabrice Bellard
#endif /* AVCODEC_H */