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#ifndef AVCODEC_H
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#define AVCODEC_H
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/**
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 * @file avcodec.h
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 * external api header.
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 */
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "common.h"
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#include "rational.h"
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#include <sys/types.h> /* size_t */
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#define FFMPEG_VERSION_INT     0x000409
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#define FFMPEG_VERSION         "0.4.9-pre1"
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#define LIBAVCODEC_BUILD       4736
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#define LIBAVCODEC_VERSION_INT FFMPEG_VERSION_INT
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#define LIBAVCODEC_VERSION     FFMPEG_VERSION
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#define AV_STRINGIFY(s)        AV_TOSTRING(s)
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#define AV_TOSTRING(s) #s
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#define LIBAVCODEC_IDENT        "FFmpeg" LIBAVCODEC_VERSION "b" AV_STRINGIFY(LIBAVCODEC_BUILD)
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#define AV_NOPTS_VALUE int64_t_C(0x8000000000000000)
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#define AV_TIME_BASE 1000000
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enum CodecID {
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    CODEC_ID_NONE, 
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    CODEC_ID_MPEG1VIDEO,
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    CODEC_ID_MPEG2VIDEO, /* prefered ID for MPEG Video 1 or 2 decoding */
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    CODEC_ID_MPEG2VIDEO_XVMC,
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    CODEC_ID_H261,
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    CODEC_ID_H263,
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    CODEC_ID_RV10,
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    CODEC_ID_RV20,
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    CODEC_ID_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_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_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_MSZH,
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    CODEC_ID_ZLIB,
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    CODEC_ID_QTRLE,
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    CODEC_ID_SNOW,
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    CODEC_ID_TSCC,
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    CODEC_ID_ULTI,
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    CODEC_ID_QDRAW,
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    CODEC_ID_VIXL,
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    CODEC_ID_QPEG,
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    CODEC_ID_XVID,
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    CODEC_ID_PNG,
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    CODEC_ID_PPM,
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    CODEC_ID_PBM,
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    CODEC_ID_PGM,
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    CODEC_ID_PGMYUV,
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    CODEC_ID_PAM,
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    CODEC_ID_FFVHUFF,
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    /* various pcm "codecs" */
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    CODEC_ID_PCM_S16LE= 0x10000,
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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= 0x11000,
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    CODEC_ID_ADPCM_IMA_WAV,
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    CODEC_ID_ADPCM_IMA_DK3,
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    CODEC_ID_ADPCM_IMA_DK4,
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    CODEC_ID_ADPCM_IMA_WS,
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    CODEC_ID_ADPCM_IMA_SMJPEG,
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    CODEC_ID_ADPCM_MS,
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    CODEC_ID_ADPCM_4XM,
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    CODEC_ID_ADPCM_XA,
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    CODEC_ID_ADPCM_ADX,
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    CODEC_ID_ADPCM_EA,
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    CODEC_ID_ADPCM_G726,
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    CODEC_ID_ADPCM_CT,
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    /* AMR */
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    CODEC_ID_AMR_NB= 0x12000,
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    CODEC_ID_AMR_WB,
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    /* RealAudio codecs*/
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    CODEC_ID_RA_144= 0x13000,
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    CODEC_ID_RA_288,
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    /* various DPCM codecs */
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    CODEC_ID_ROQ_DPCM= 0x14000,
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    CODEC_ID_INTERPLAY_DPCM,
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    CODEC_ID_XAN_DPCM,
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    CODEC_ID_SOL_DPCM,
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    CODEC_ID_MP2= 0x15000,
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    CODEC_ID_MP3, /* prefered ID for MPEG Audio layer 1, 2 or3 decoding */
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    CODEC_ID_AAC,
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    CODEC_ID_MPEG4AAC,
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    CODEC_ID_AC3,
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    CODEC_ID_DTS,
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    CODEC_ID_VORBIS,
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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_VMDAUDIO,
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    CODEC_ID_SONIC,
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    CODEC_ID_SONIC_LS,
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    CODEC_ID_FLAC,
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    CODEC_ID_MPEG2TS= 0x20000, /* _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,    ///< Packed pixel, Y0 Cb Y1 Cr 
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    PIX_FMT_RGB24,     ///< Packed pixel, 3 bytes per pixel, RGBRGB...
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    PIX_FMT_BGR24,     ///< Packed pixel, 3 bytes per pixel, BGRBGR...
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    PIX_FMT_YUV422P,   ///< Planar YUV 4:2:2 (1 Cr & Cb sample per 2x1 Y samples)
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    PIX_FMT_YUV444P,   ///< Planar YUV 4:4:4 (1 Cr & Cb sample per 1x1 Y samples)
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    PIX_FMT_RGBA32,    ///< Packed pixel, 4 bytes per pixel, BGRABGRA..., stored in cpu endianness
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    PIX_FMT_YUV410P,   ///< Planar YUV 4:1:0 (1 Cr & Cb sample per 4x4 Y samples)
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    PIX_FMT_YUV411P,   ///< Planar YUV 4:1:1 (1 Cr & Cb sample per 4x1 Y samples)
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    PIX_FMT_RGB565,    ///< always stored in cpu endianness 
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    PIX_FMT_RGB555,    ///< always stored in cpu endianness, most significant bit to 1 
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    PIX_FMT_GRAY8,
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    PIX_FMT_MONOWHITE, ///< 0 is white 
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    PIX_FMT_MONOBLACK, ///< 0 is black 
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    PIX_FMT_PAL8,      ///< 8 bit with RGBA palette 
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    PIX_FMT_YUVJ420P,  ///< Planar YUV 4:2:0 full scale (jpeg)
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    PIX_FMT_YUVJ422P,  ///< Planar YUV 4:2:2 full scale (jpeg)
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    PIX_FMT_YUVJ444P,  ///< Planar YUV 4:4:4 full scale (jpeg)
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    PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing(xvmc_render.h)
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    PIX_FMT_XVMC_MPEG2_IDCT,
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    PIX_FMT_UYVY422,   ///< Packed pixel, Cb Y0 Cr Y1 
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    PIX_FMT_UYVY411,   ///< Packed pixel, Cb Y0 Y1 Cr Y2 Y3
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    PIX_FMT_NB,
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};
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/* currently unused, may be used if 24/32 bits samples ever supported */
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enum SampleFormat {
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    SAMPLE_FMT_S16 = 0,         ///< signed 16 bits 
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};
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/* in bytes */
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#define AVCODEC_MAX_AUDIO_FRAME_SIZE 131072
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/**
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 * Required number of additionally allocated bytes at the end of the input bitstream for decoding.
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 * this is mainly needed because some optimized bitstream readers read 
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 * 32 or 64 bit at once and could read over the end<br>
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 * Note, if the first 23 bits of the additional bytes are not 0 then damaged
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 * MPEG bitstreams could cause overread and segfault
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 */
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#define FF_INPUT_BUFFER_PADDING_SIZE 8
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/* motion estimation type, EPZS by default */
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enum Motion_Est_ID {
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    ME_ZERO = 1,
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    ME_FULL,
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    ME_LOG,
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    ME_PHODS,
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    ME_EPZS,
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    ME_X1
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};
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enum AVRounding {
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    AV_ROUND_ZERO     = 0, ///< round toward zero
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    AV_ROUND_INF      = 1, ///< round away from zero
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    AV_ROUND_DOWN     = 2, ///< round toward -infinity
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    AV_ROUND_UP       = 3, ///< round toward +infinity
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    AV_ROUND_NEAR_INF = 5, ///< round to nearest and halfway cases away from zero
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};
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typedef struct RcOverride{
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    int start_frame;
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    int end_frame;
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    int qscale; // if this is 0 then quality_factor will be used instead
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    float quality_factor;
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} RcOverride;
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/* only for ME compatiblity with old apps */
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extern int motion_estimation_method;
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#define FF_MAX_B_FRAMES 8
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/* encoding support
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   these flags can be passed in AVCodecContext.flags before initing 
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   Note: note not everything is supported yet 
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*/
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#define CODEC_FLAG_QSCALE 0x0002  ///< use fixed qscale 
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#define CODEC_FLAG_4MV    0x0004  ///< 4 MV per MB allowed / Advanced prediction for H263
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#define CODEC_FLAG_QPEL   0x0010  ///< use qpel MC 
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#define CODEC_FLAG_GMC    0x0020  ///< use GMC 
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#define CODEC_FLAG_MV0    0x0040  ///< always try a MB with MV=<0,0> 
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#define CODEC_FLAG_PART   0x0080  ///< use data partitioning 
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/* parent program gurantees that the input for b-frame containing streams is not written to 
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   for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
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#define CODEC_FLAG_INPUT_PRESERVED 0x0100
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#define CODEC_FLAG_PASS1 0x0200   ///< use internal 2pass ratecontrol in first  pass mode 
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#define CODEC_FLAG_PASS2 0x0400   ///< use internal 2pass ratecontrol in second pass mode 
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#define CODEC_FLAG_EXTERN_HUFF 0x1000 ///< use external huffman table (for mjpeg) 
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#define CODEC_FLAG_GRAY  0x2000   ///< only decode/encode grayscale 
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#define CODEC_FLAG_EMU_EDGE 0x4000///< dont draw edges 
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#define CODEC_FLAG_PSNR           0x8000 ///< error[?] variables will be set during encoding 
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#define CODEC_FLAG_TRUNCATED  0x00010000 /** input bitstream might be truncated at a random location instead 
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                                            of only at frame boundaries */
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#define CODEC_FLAG_NORMALIZE_AQP  0x00020000 ///< normalize adaptive quantization 
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#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< use interlaced dct 
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#define CODEC_FLAG_LOW_DELAY      0x00080000 ///< force low delay
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#define CODEC_FLAG_ALT_SCAN       0x00100000 ///< use alternate scan 
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#define CODEC_FLAG_TRELLIS_QUANT  0x00200000 ///< use trellis quantization 
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#define CODEC_FLAG_GLOBAL_HEADER  0x00400000 ///< place global headers in extradata instead of every keyframe 
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#define CODEC_FLAG_BITEXACT       0x00800000 ///< use only bitexact stuff (except (i)dct) 
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/* Fx : Flag for h263+ extra options */
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#define CODEC_FLAG_H263P_AIC      0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction (remove this)
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#define CODEC_FLAG_AC_PRED        0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction
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#define CODEC_FLAG_H263P_UMV      0x02000000 ///< Unlimited motion vector  
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#define CODEC_FLAG_CBP_RD         0x04000000 ///< use rate distortion optimization for cbp
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#define CODEC_FLAG_QP_RD          0x08000000 ///< use rate distortion optimization for qp selectioon
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#define CODEC_FLAG_H263P_AIV      0x00000008 ///< H263 Alternative inter vlc
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#define CODEC_FLAG_OBMC           0x00000001 ///< OBMC
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#define CODEC_FLAG_LOOP_FILTER    0x00000800 ///< loop filter
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#define CODEC_FLAG_H263P_SLICE_STRUCT 0x10000000
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#define CODEC_FLAG_INTERLACED_ME  0x20000000 ///< interlaced motion estimation
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#define CODEC_FLAG_SVCD_SCAN_OFFSET 0x40000000 ///< will reserve space for SVCD scan offset user data
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#define CODEC_FLAG_CLOSED_GOP     0x80000000
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#define CODEC_FLAG2_FAST          0x00000001 ///< allow non spec compliant speedup tricks
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#define CODEC_FLAG2_STRICT_GOP    0x00000002 ///< strictly enforce GOP size
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/* Unsupported options :
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 *                 Syntax Arithmetic coding (SAC)
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 *                 Reference Picture Selection
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 *                 Independant Segment Decoding */
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/* /Fx */
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/* codec capabilities */
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#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< decoder can use draw_horiz_band callback 
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/**
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 * Codec uses get_buffer() for allocating buffers.
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 * direct rendering method 1
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 */
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#define CODEC_CAP_DR1             0x0002
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/* if 'parse_only' field is true, then avcodec_parse_frame() can be
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   used */
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#define CODEC_CAP_PARSE_ONLY      0x0004
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#define CODEC_CAP_TRUNCATED       0x0008
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/* codec can export data for HW decoding (XvMC) */
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#define CODEC_CAP_HWACCEL         0x0010
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/** codec has a non zero delay and needs to be feeded with NULL at the end to get the delayed data */
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#define CODEC_CAP_DELAY           0x0020
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//the following defines might change, so dont expect compatibility if u use them
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#define MB_TYPE_INTRA4x4   0x0001
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#define MB_TYPE_INTRA16x16 0x0002 //FIXME h264 specific
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#define MB_TYPE_INTRA_PCM  0x0004 //FIXME h264 specific
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#define MB_TYPE_16x16      0x0008
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#define MB_TYPE_16x8       0x0010
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#define MB_TYPE_8x16       0x0020
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#define MB_TYPE_8x8        0x0040
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#define MB_TYPE_INTERLACED 0x0080
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#define MB_TYPE_DIRECT2     0x0100 //FIXME
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#define MB_TYPE_ACPRED     0x0200
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#define MB_TYPE_GMC        0x0400
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#define MB_TYPE_SKIP       0x0800
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#define MB_TYPE_P0L0       0x1000
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#define MB_TYPE_P1L0       0x2000
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#define MB_TYPE_P0L1       0x4000
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#define MB_TYPE_P1L1       0x8000
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#define MB_TYPE_L0         (MB_TYPE_P0L0 | MB_TYPE_P1L0)
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#define MB_TYPE_L1         (MB_TYPE_P0L1 | MB_TYPE_P1L1)
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#define MB_TYPE_L0L1       (MB_TYPE_L0   | MB_TYPE_L1)
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#define MB_TYPE_QUANT      0x00010000
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#define MB_TYPE_CBP        0x00020000
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//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...)
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/**
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 * Pan Scan area.
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 * this specifies the area which should be displayed. Note there may be multiple such areas for one frame
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 */
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typedef struct AVPanScan{
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    /**
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     * id.
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     * - encoding: set by user.
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     * - decoding: set by lavc
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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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     */
381
    int16_t position[3][2];
382
}AVPanScan;
383
384 492cd3a9 Michael Niedermayer
#define FF_COMMON_FRAME \
385 b536d0aa Michael Niedermayer
    /**\
386
     * pointer to the picture planes.\
387
     * this might be different from the first allocated byte\
388
     * - encoding: \
389
     * - decoding: \
390
     */\
391 1e491e29 Michael Niedermayer
    uint8_t *data[4];\
392
    int linesize[4];\
393
    /**\
394 32db2b1d Michael Niedermayer
     * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
395 1e491e29 Michael Niedermayer
     * this isnt used by lavc unless the default get/release_buffer() is used\
396 64863965 Michael Niedermayer
     * - encoding: \
397
     * - decoding: \
398 1e491e29 Michael Niedermayer
     */\
399
    uint8_t *base[4];\
400
    /**\
401
     * 1 -> keyframe, 0-> not\
402 64863965 Michael Niedermayer
     * - encoding: set by lavc\
403
     * - decoding: set by lavc\
404 1e491e29 Michael Niedermayer
     */\
405
    int key_frame;\
406
\
407
    /**\
408 0da71265 Michael Niedermayer
     * picture type of the frame, see ?_TYPE below.\
409 64863965 Michael Niedermayer
     * - encoding: set by lavc for coded_picture (and set by user for input)\
410
     * - decoding: set by lavc\
411 1e491e29 Michael Niedermayer
     */\
412
    int pict_type;\
413
\
414
    /**\
415 9740beff Michael Niedermayer
     * presentation timestamp in AV_TIME_BASE (=micro seconds currently) (time when frame should be shown to user)\
416
     * if AV_NOPTS_VALUE then the frame_rate will be used as reference\
417 64863965 Michael Niedermayer
     * - encoding: MUST be set by user\
418
     * - decoding: set by lavc\
419 1e491e29 Michael Niedermayer
     */\
420 be6784dc Richard Hodges
    int64_t pts;\
421 1e491e29 Michael Niedermayer
\
422
    /**\
423
     * picture number in bitstream order.\
424 64863965 Michael Niedermayer
     * - encoding: set by\
425
     * - decoding: set by lavc\
426 1e491e29 Michael Niedermayer
     */\
427
    int coded_picture_number;\
428
    /**\
429
     * picture number in display order.\
430 64863965 Michael Niedermayer
     * - encoding: set by\
431
     * - decoding: set by lavc\
432 1e491e29 Michael Niedermayer
     */\
433
    int display_picture_number;\
434
\
435
    /**\
436 158c7f05 Michael Niedermayer
     * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
437 64863965 Michael Niedermayer
     * - encoding: set by lavc for coded_picture (and set by user for input)\
438
     * - decoding: set by lavc\
439 1e491e29 Michael Niedermayer
     */\
440 158c7f05 Michael Niedermayer
    int quality; \
441 1e491e29 Michael Niedermayer
\
442
    /**\
443
     * buffer age (1->was last buffer and dint change, 2->..., ...).\
444 158c7f05 Michael Niedermayer
     * set to INT_MAX if the buffer has not been used yet \
445 64863965 Michael Niedermayer
     * - encoding: unused\
446
     * - decoding: MUST be set by get_buffer()\
447 1e491e29 Michael Niedermayer
     */\
448
    int age;\
449
\
450
    /**\
451
     * is this picture used as reference\
452 64863965 Michael Niedermayer
     * - encoding: unused\
453
     * - decoding: set by lavc (before get_buffer() call))\
454 1e491e29 Michael Niedermayer
     */\
455
    int reference;\
456
\
457
    /**\
458
     * QP table\
459 64863965 Michael Niedermayer
     * - encoding: unused\
460
     * - decoding: set by lavc\
461 1e491e29 Michael Niedermayer
     */\
462
    int8_t *qscale_table;\
463
    /**\
464
     * QP store stride\
465 64863965 Michael Niedermayer
     * - encoding: unused\
466
     * - decoding: set by lavc\
467 1e491e29 Michael Niedermayer
     */\
468
    int qstride;\
469
\
470
    /**\
471
     * mbskip_table[mb]>=1 if MB didnt change\
472
     * stride= mb_width = (width+15)>>4\
473 64863965 Michael Niedermayer
     * - encoding: unused\
474
     * - decoding: set by lavc\
475 1e491e29 Michael Niedermayer
     */\
476
    uint8_t *mbskip_table;\
477
\
478
    /**\
479 8d7ec294 Wolfgang Hesseler
     * Motion vector table\
480 a4d36c11 Michael Niedermayer
     * - encoding: set by user\
481 8d7ec294 Wolfgang Hesseler
     * - decoding: set by lavc\
482
     */\
483
    int16_t (*motion_val[2])[2];\
484
\
485
    /**\
486
     * Macroblock type table\
487
     * mb_type_base + mb_width + 2\
488 a4d36c11 Michael Niedermayer
     * - encoding: set by user\
489 8d7ec294 Wolfgang Hesseler
     * - decoding: set by lavc\
490
     */\
491
    uint32_t *mb_type;\
492
\
493
    /**\
494
     * Macroblock size: (0->16x16, 1->8x8, 2-> 4x4, 3-> 2x2)\
495
     * - encoding: unused\
496
     * - decoding: set by lavc\
497
     */\
498
    uint8_t motion_subsample_log2;\
499
\
500
    /**\
501 1e491e29 Michael Niedermayer
     * for some private data of the user\
502 64863965 Michael Niedermayer
     * - encoding: unused\
503
     * - decoding: set by user\
504 1e491e29 Michael Niedermayer
     */\
505
    void *opaque;\
506 140cb663 Michael Niedermayer
\
507
    /**\
508
     * error\
509 64863965 Michael Niedermayer
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
510
     * - decoding: unused\
511 140cb663 Michael Niedermayer
     */\
512
    uint64_t error[4];\
513 4e00e76b Michael Niedermayer
\
514
    /**\
515
     * type of the buffer (to keep track of who has to dealloc data[*])\
516 64863965 Michael Niedermayer
     * - encoding: set by the one who allocs it\
517
     * - decoding: set by the one who allocs it\
518 3db320ea Falk Hüffner
     * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
519 4e00e76b Michael Niedermayer
     */\
520
    int type;\
521 2ec23b6d Michael Niedermayer
    \
522
    /**\
523
     * when decoding, this signal how much the picture must be delayed.\
524
     * extra_delay = repeat_pict / (2*fps)\
525 64863965 Michael Niedermayer
     * - encoding: unused\
526
     * - decoding: set by lavc\
527 2ec23b6d Michael Niedermayer
     */\
528 0426af31 Michael Niedermayer
    int repeat_pict;\
529
    \
530
    /**\
531
     * \
532
     */\
533
    int qscale_type;\
534 2744ca9a Roman Shaposhnik
    \
535
    /**\
536
     * The content of the picture is interlaced.\
537
     * - encoding: set by user\
538
     * - decoding: set by lavc (default 0)\
539
     */\
540
    int interlaced_frame;\
541
    \
542
    /**\
543 9dad924e Michael Niedermayer
     * if the content is interlaced, is top field displayed first.\
544 2744ca9a Roman Shaposhnik
     * - encoding: set by user\
545 9dad924e Michael Niedermayer
     * - decoding: set by lavc\
546 2744ca9a Roman Shaposhnik
     */\
547 9dad924e Michael Niedermayer
    int top_field_first;\
548 fa384dcc Michael Niedermayer
    \
549
    /**\
550
     * Pan scan.\
551
     * - encoding: set by user\
552
     * - decoding: set by lavc\
553
     */\
554
    AVPanScan *pan_scan;\
555 2a2bbcb0 Mike Melanson
    \
556
    /**\
557
     * tell user application that palette has changed from previous frame.\
558
     * - encoding: ??? (no palette-enabled encoder yet)\
559
     * - decoding: set by lavc (default 0)\
560
     */\
561
    int palette_has_changed;\
562 074c4ca7 Roberto Togni
    \
563
    /**\
564
     * Codec suggestion on buffer type if != 0\
565
     * - encoding: unused\
566
     * - decoding: set by lavc (before get_buffer() call))\
567
     */\
568
    int buffer_hints;\
569 8289c6fa Wolfgang Hesseler
\
570
    /**\
571
     * DCT coeffitients\
572
     * - encoding: unused\
573
     * - decoding: set by lavc\
574
     */\
575
    short *dct_coeff;\
576 a4d36c11 Michael Niedermayer
\
577
    /**\
578
     * Motion referece frame index\
579
     * - encoding: set by user\
580
     * - decoding: set by lavc\
581
     */\
582
    int8_t *ref_index[2];
583 2ec23b6d Michael Niedermayer
584 0426af31 Michael Niedermayer
#define FF_QSCALE_TYPE_MPEG1        0
585
#define FF_QSCALE_TYPE_MPEG2        1
586 4e00e76b Michael Niedermayer
587
#define FF_BUFFER_TYPE_INTERNAL 1
588 9b56edf5 Michael Niedermayer
#define FF_BUFFER_TYPE_USER     2 ///< Direct rendering buffers (image is (de)allocated by user)
589 a4d36c11 Michael Niedermayer
#define FF_BUFFER_TYPE_SHARED   4 ///< buffer from somewher else, dont dealloc image (data/base), all other tables are not shared
590 9b56edf5 Michael Niedermayer
#define FF_BUFFER_TYPE_COPY     8 ///< just a (modified) copy of some other buffer, dont dealloc anything
591 4e00e76b Michael Niedermayer
592 1e491e29 Michael Niedermayer
593 140cb663 Michael Niedermayer
#define FF_I_TYPE 1 // Intra
594
#define FF_P_TYPE 2 // Predicted
595
#define FF_B_TYPE 3 // Bi-dir predicted
596
#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
597 0da71265 Michael Niedermayer
#define FF_SI_TYPE 5
598
#define FF_SP_TYPE 6
599 1e491e29 Michael Niedermayer
600 074c4ca7 Roberto Togni
#define FF_BUFFER_HINTS_VALID    0x01 // Buffer hints value is meaningful (if 0 ignore)
601
#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
602
#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
603
#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
604
605 0da71265 Michael Niedermayer
/**
606
 * Audio Video Frame.
607
 */
608 492cd3a9 Michael Niedermayer
typedef struct AVFrame {
609
    FF_COMMON_FRAME
610
} AVFrame;
611 1e491e29 Michael Niedermayer
612 14bea432 Michael Niedermayer
#define DEFAULT_FRAME_RATE_BASE 1001000
613 d33c949c Michael Niedermayer
614
/**
615 bc874dae Michel Bardiaux
 * Used by av_log
616
 */
617
typedef struct AVCLASS AVClass;
618
struct AVCLASS {
619
    const char* class_name;
620
    const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext
621
                                        or AVFormatContext, which begin with an AVClass.
622
                                        Needed because av_log is in libavcodec and has no visibility
623
                                        of AVIn/OutputFormat */
624
};
625
626
/**
627 d33c949c Michael Niedermayer
 * main external api structure.
628
 */
629 de6d9b64 Fabrice Bellard
typedef struct AVCodecContext {
630 b71901e6 Michael Niedermayer
    /**
631 bc874dae Michel Bardiaux
     * Info on struct for av_log
632
     * - set by avcodec_alloc_context
633
     */
634 43465395 Michael Niedermayer
    AVClass *av_class;
635 bc874dae Michel Bardiaux
    /**
636 64863965 Michael Niedermayer
     * the average bitrate.
637
     * - encoding: set by user. unused for constant quantizer encoding
638
     * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream 
639 b71901e6 Michael Niedermayer
     */
640 de6d9b64 Fabrice Bellard
    int bit_rate;
641 b71901e6 Michael Niedermayer
642
    /**
643 64863965 Michael Niedermayer
     * number of bits the bitstream is allowed to diverge from the reference.
644 b71901e6 Michael Niedermayer
     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
645 64863965 Michael Niedermayer
     * - encoding: set by user. unused for constant quantizer encoding
646
     * - decoding: unused
647 b71901e6 Michael Niedermayer
     */
648
    int bit_rate_tolerance; 
649
650
    /**
651 64863965 Michael Niedermayer
     * CODEC_FLAG_*.
652
     * - encoding: set by user.
653
     * - decoding: set by user.
654 b71901e6 Michael Niedermayer
     */
655 de6d9b64 Fabrice Bellard
    int flags;
656 b71901e6 Michael Niedermayer
657
    /**
658
     * some codecs needs additionnal format info. It is stored here
659 64863965 Michael Niedermayer
     * - encoding: set by user. 
660
     * - decoding: set by lavc. (FIXME is this ok?)
661 b71901e6 Michael Niedermayer
     */
662
    int sub_id;
663
664
    /**
665 64863965 Michael Niedermayer
     * motion estimation algorithm used for video coding.
666
     * - encoding: MUST be set by user.
667
     * - decoding: unused
668 b71901e6 Michael Niedermayer
     */
669
    int me_method;
670
671
    /**
672 64863965 Michael Niedermayer
     * some codecs need / can use extra-data like huffman tables.
673 b71901e6 Michael Niedermayer
     * mjpeg: huffman tables
674
     * rv10: additional flags
675 b704e742 Michael Niedermayer
     * mpeg4: global headers (they can be in the bitstream or here)
676 dffcdbb5 Michael Niedermayer
     * the allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
677
     * then extradata_size to avoid prolems if its read with the bitstream reader
678 64863965 Michael Niedermayer
     * - encoding: set/allocated/freed by lavc.
679
     * - decoding: set/allocated/freed by user.
680 b71901e6 Michael Niedermayer
     */
681 e84c31dc Arpi
    void *extradata;
682
    int extradata_size;
683
    
684 de6d9b64 Fabrice Bellard
    /* video only */
685 b71901e6 Michael Niedermayer
    /**
686 14bea432 Michael Niedermayer
     * frames per sec multiplied by frame_rate_base.
687 b71901e6 Michael Niedermayer
     * for variable fps this is the precission, so if the timestamps 
688 14bea432 Michael Niedermayer
     * can be specified in msec precssion then this is 1000*frame_rate_base
689 64863965 Michael Niedermayer
     * - encoding: MUST be set by user
690
     * - decoding: set by lavc. 0 or the frame_rate if available
691 b71901e6 Michael Niedermayer
     */
692
    int frame_rate;
693 14bea432 Michael Niedermayer
    
694
    /**
695 21adafec Michael Niedermayer
     * picture width / height.
696 64863965 Michael Niedermayer
     * - encoding: MUST be set by user. 
697 21adafec Michael Niedermayer
     * - decoding: set by lavc.
698
     * Note, for compatibility its possible to set this instead of 
699
     * coded_width/height before decoding
700 b71901e6 Michael Niedermayer
     */
701 de6d9b64 Fabrice Bellard
    int width, height;
702 b71901e6 Michael Niedermayer
    
703 e769f053 Alex Beregszaszi
#define FF_ASPECT_EXTENDED 15
704 b71901e6 Michael Niedermayer
705
    /**
706 64863965 Michael Niedermayer
     * the number of pictures in a group of pitures, or 0 for intra_only.
707
     * - encoding: set by user.
708
     * - decoding: unused
709 b71901e6 Michael Niedermayer
     */
710
    int gop_size;
711
712
    /**
713 64863965 Michael Niedermayer
     * pixel format, see PIX_FMT_xxx.
714 36b58e85 Roman Shaposhnik
     * - encoding: FIXME: used by ffmpeg to decide whether an pix_fmt
715
     *                    conversion is in order. This only works for
716
     *                    codecs with one supported pix_fmt, we should
717
     *                    do something for a generic case as well.
718 64863965 Michael Niedermayer
     * - decoding: set by lavc.
719 b71901e6 Michael Niedermayer
     */
720 e4eadb4b Michael Niedermayer
    enum PixelFormat pix_fmt;
721 bdfcbbed Max Krasnyansky
 
722
    /**
723
     * Frame rate emulation. If not zero lower layer (i.e. format handler) 
724
     * has to read frames at native frame rate.
725
     * - encoding: set by user.
726
     * - decoding: unused.
727
     */
728
    int rate_emu;
729
       
730 b71901e6 Michael Niedermayer
    /**
731
     * if non NULL, 'draw_horiz_band' is called by the libavcodec
732
     * decoder to draw an horizontal band. It improve cache usage. Not
733
     * all codecs can do that. You must check the codec capabilities
734
     * before
735 64863965 Michael Niedermayer
     * - encoding: unused
736
     * - decoding: set by user.
737 3bb07d61 Michael Niedermayer
     * @param height the height of the slice
738
     * @param y the y position of the slice
739
     * @param type 1->top field, 2->bottom field, 3->frame
740
     * @param offset offset into the AVFrame.data from which the slice should be read
741 b71901e6 Michael Niedermayer
     */
742 bf89e6b1 Fabrice Bellard
    void (*draw_horiz_band)(struct AVCodecContext *s,
743 da64ecc3 Drew Hess
                            const AVFrame *src, int offset[4],
744 3bb07d61 Michael Niedermayer
                            int y, int type, int height);
745 bf89e6b1 Fabrice Bellard
746 de6d9b64 Fabrice Bellard
    /* audio only */
747 64863965 Michael Niedermayer
    int sample_rate; ///< samples per sec 
748 de6d9b64 Fabrice Bellard
    int channels;
749 64863965 Michael Niedermayer
    int sample_fmt;  ///< sample format, currenly unused 
750 de6d9b64 Fabrice Bellard
751
    /* the following data should not be initialized */
752 64863965 Michael Niedermayer
    int frame_size;     ///< in samples, initialized when calling 'init' 
753
    int frame_number;   ///< audio or video frame number 
754
    int real_pict_num;  ///< returns the real picture number of previous encoded frame 
755 1e491e29 Michael Niedermayer
    
756 b71901e6 Michael Niedermayer
    /**
757
     * number of frames the decoded output will be delayed relative to 
758 64863965 Michael Niedermayer
     * the encoded input.
759
     * - encoding: set by lavc.
760
     * - decoding: unused
761 b71901e6 Michael Niedermayer
     */
762
    int delay;
763 1ff662cc Michael Niedermayer
    
764 64863965 Michael Niedermayer
    /* - encoding parameters */
765
    float qcompress;  ///< amount of qscale change between easy & hard scenes (0.0-1.0)
766
    float qblur;      ///< amount of qscale smoothing over time (0.0-1.0) 
767 b71901e6 Michael Niedermayer
    
768
    /**
769 64863965 Michael Niedermayer
     * minimum quantizer.
770
     * - encoding: set by user.
771
     * - decoding: unused
772 b71901e6 Michael Niedermayer
     */
773
    int qmin;
774
775
    /**
776 64863965 Michael Niedermayer
     * maximum quantizer.
777
     * - encoding: set by user.
778
     * - decoding: unused
779 b71901e6 Michael Niedermayer
     */
780
    int qmax;
781
782
    /**
783 64863965 Michael Niedermayer
     * maximum quantizer difference etween frames.
784
     * - encoding: set by user.
785
     * - decoding: unused
786 b71901e6 Michael Niedermayer
     */
787
    int max_qdiff;
788
789
    /**
790 64863965 Michael Niedermayer
     * maximum number of b frames between non b frames.
791 b71901e6 Michael Niedermayer
     * note: the output will be delayed by max_b_frames+1 relative to the input
792 64863965 Michael Niedermayer
     * - encoding: set by user.
793
     * - decoding: unused
794 b71901e6 Michael Niedermayer
     */
795
    int max_b_frames;
796
797
    /**
798 64863965 Michael Niedermayer
     * qscale factor between ip and b frames.
799
     * - encoding: set by user.
800
     * - decoding: unused
801 b71901e6 Michael Niedermayer
     */
802
    float b_quant_factor;
803
    
804
    /** obsolete FIXME remove */
805
    int rc_strategy;
806 8b4c7dbc Michael Niedermayer
    int b_frame_strategy;
807 9dbcbd92 Michael Niedermayer
808 b71901e6 Michael Niedermayer
    /**
809 64863965 Michael Niedermayer
     * hurry up amount.
810
     * - encoding: unused
811
     * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
812 b71901e6 Michael Niedermayer
     */
813
    int hurry_up;
814 2417652e Michael Niedermayer
    
815 de6d9b64 Fabrice Bellard
    struct AVCodec *codec;
816 b71901e6 Michael Niedermayer
    
817 de6d9b64 Fabrice Bellard
    void *priv_data;
818
819 ba58dabc Michael Niedermayer
    /* unused, FIXME remove*/
820
    int rtp_mode;
821 644d98a4 Juanjo
    
822
    int rtp_payload_size;   /* The size of the RTP payload, the coder will  */
823
                            /* do it's best to deliver a chunk with size    */
824
                            /* below rtp_payload_size, the chunk will start */
825
                            /* with a start code on some codecs like H.263  */
826
                            /* This doesn't take account of any particular  */
827
                            /* headers inside the transmited RTP payload    */
828 81401c1f Juanjo
829
    
830
    /* The RTP callcack: This function is called  */
831
    /* every time the encoder as a packet to send */
832
    /* Depends on the encoder if the data starts  */
833
    /* with a Start Code (it should) H.263 does   */
834 a7fcb3ea Chris Flerackers
    void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int packet_number); 
835 81401c1f Juanjo
836 098eefe1 Michael Niedermayer
    /* statistics, used for 2-pass encoding */
837
    int mv_bits;
838
    int header_bits;
839
    int i_tex_bits;
840
    int p_tex_bits;
841
    int i_count;
842
    int p_count;
843
    int skip_count;
844 b71901e6 Michael Niedermayer
    int misc_bits;
845
    
846
    /**
847 64863965 Michael Niedermayer
     * number of bits used for the previously encoded frame.
848
     * - encoding: set by lavc
849 7004ffb3 Michael Niedermayer
     * - decoding: unused
850 b71901e6 Michael Niedermayer
     */
851 098eefe1 Michael Niedermayer
    int frame_bits;
852 7004ffb3 Michael Niedermayer
853 b71901e6 Michael Niedermayer
    /**
854 64863965 Michael Niedermayer
     * private data of the user, can be used to carry app specific stuff.
855
     * - encoding: set by user
856
     * - decoding: set by user
857 b71901e6 Michael Niedermayer
     */
858
    void *opaque;
859
860 de6d9b64 Fabrice Bellard
    char codec_name[32];
861 4a663d80 Philip Gladstone
    enum CodecType codec_type; /* see CODEC_TYPE_xxx */
862
    enum CodecID codec_id; /* see CODEC_ID_xxx */
863 7004ffb3 Michael Niedermayer
    
864
    /**
865
     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
866
     * this is used to workaround some encoder bugs
867 bd5a6020 Michael Niedermayer
     * - encoding: set by user, if not then the default based on codec_id will be used
868 7004ffb3 Michael Niedermayer
     * - decoding: set by user, will be converted to upper case by lavc during init
869
     */
870
    unsigned int codec_tag;
871 92ba5ffb Michael Niedermayer
    
872 b71901e6 Michael Niedermayer
    /**
873 64863965 Michael Niedermayer
     * workaround bugs in encoders which sometimes cannot be detected automatically.
874
     * - encoding: unused
875
     * - decoding: set by user
876 b71901e6 Michael Niedermayer
     */
877
    int workaround_bugs;
878 64863965 Michael Niedermayer
#define FF_BUG_AUTODETECT       1  ///< autodetection
879 4d2858de Michael Niedermayer
#define FF_BUG_OLD_MSMPEG4      2
880
#define FF_BUG_XVID_ILACE       4
881
#define FF_BUG_UMP4             8
882
#define FF_BUG_NO_PADDING       16
883 3116cb14 Michael Niedermayer
#define FF_BUG_AMV              32
884 ac0c6638 Michael Niedermayer
#define FF_BUG_AC_VLC           0  ///< will be removed, libavcodec can now handle these non compliant files by default
885 03e93d35 Michael Niedermayer
#define FF_BUG_QPEL_CHROMA      64
886 db794953 Michael Niedermayer
#define FF_BUG_STD_QPEL         128
887 36df8805 Michael Niedermayer
#define FF_BUG_QPEL_CHROMA2     256
888 c40c3482 Michael Niedermayer
#define FF_BUG_DIRECT_BLOCKSIZE 512
889 1c6dcb0f Michael Niedermayer
#define FF_BUG_EDGE             1024
890 b44bdf7e Michael Niedermayer
#define FF_BUG_HPEL_CHROMA      2048
891 4ccde216 Michael Niedermayer
#define FF_BUG_DC_CLIP          4096
892 4d2858de Michael Niedermayer
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
893
        
894 b71901e6 Michael Niedermayer
    /**
895 64863965 Michael Niedermayer
     * luma single coeff elimination threshold.
896
     * - encoding: set by user
897
     * - decoding: unused
898 b71901e6 Michael Niedermayer
     */
899 1f6b6e50 Michael Niedermayer
    int luma_elim_threshold;
900 b71901e6 Michael Niedermayer
    
901
    /**
902 64863965 Michael Niedermayer
     * chroma single coeff elimination threshold.
903
     * - encoding: set by user
904
     * - decoding: unused
905 b71901e6 Michael Niedermayer
     */
906 1f6b6e50 Michael Niedermayer
    int chroma_elim_threshold;
907 b71901e6 Michael Niedermayer
    
908
    /**
909 64863965 Michael Niedermayer
     * strictly follow the std (MPEG4, ...).
910
     * - encoding: set by user
911
     * - decoding: unused
912 b71901e6 Michael Niedermayer
     */
913
    int strict_std_compliance;
914
    
915
    /**
916 64863965 Michael Niedermayer
     * qscale offset between ip and b frames.
917 b3a391e8 Michael Niedermayer
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
918
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
919 64863965 Michael Niedermayer
     * - encoding: set by user.
920
     * - decoding: unused
921 b71901e6 Michael Niedermayer
     */
922
    float b_quant_offset;
923
    
924
    /**
925 ce3bcaed Michael Niedermayer
     * error resilience higher values will detect more errors but may missdetect
926 64863965 Michael Niedermayer
     * some more or less valid parts as errors.
927
     * - encoding: unused
928
     * - decoding: set by user
929 b71901e6 Michael Niedermayer
     */
930 1f6b6e50 Michael Niedermayer
    int error_resilience;
931 ce3bcaed Michael Niedermayer
#define FF_ER_CAREFULL        1
932
#define FF_ER_COMPLIANT       2
933
#define FF_ER_AGGRESSIVE      3
934
#define FF_ER_VERY_AGGRESSIVE 4
935 ae72cda6 Nick Kurshev
    
936 6b72ac63 Michael Niedermayer
    /**
937 1e491e29 Michael Niedermayer
     * called at the beginning of each frame to get a buffer for it.
938
     * if pic.reference is set then the frame will be read later by lavc
939 2b5296d2 Michael Niedermayer
     * avcodec_align_dimensions() should be used to find the required width and
940
     * height, as they normally need to be rounded up to the next multiple of 16
941 64863965 Michael Niedermayer
     * - encoding: unused
942
     * - decoding: set by lavc, user can override
943 b71901e6 Michael Niedermayer
     */
944 492cd3a9 Michael Niedermayer
    int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
945 b71901e6 Michael Niedermayer
    
946
    /**
947 1e491e29 Michael Niedermayer
     * called to release buffers which where allocated with get_buffer.
948
     * a released buffer can be reused in get_buffer()
949
     * pic.data[*] must be set to NULL
950 64863965 Michael Niedermayer
     * - encoding: unused
951
     * - decoding: set by lavc, user can override
952 b71901e6 Michael Niedermayer
     */
953 492cd3a9 Michael Niedermayer
    void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
954 0fd90455 Michael Niedermayer
955 b71901e6 Michael Niedermayer
    /**
956 e6a2ac34 Michael Niedermayer
     * if 1 the stream has a 1 frame delay during decoding.
957
     * - encoding: set by lavc
958 64863965 Michael Niedermayer
     * - decoding: set by lavc
959 b71901e6 Michael Niedermayer
     */
960
    int has_b_frames;
961
    
962 64863965 Michael Niedermayer
    int block_align; ///< used by some WAV based audio codecs
963 ce980a95 Michael Niedermayer
    
964 64863965 Michael Niedermayer
    int parse_only; /* - decoding only: if true, only parsing is done
965 917e06c8 Fabrice Bellard
                       (function avcodec_parse_frame()). The frame
966
                       data is returned. Only MPEG codecs support this now. */
967 ce980a95 Michael Niedermayer
    
968 b71901e6 Michael Niedermayer
    /**
969 e4eadb4b Michael Niedermayer
     * 0-> h263 quant 1-> mpeg quant.
970 64863965 Michael Niedermayer
     * - encoding: set by user.
971
     * - decoding: unused
972 b71901e6 Michael Niedermayer
     */
973
    int mpeg_quant;
974 ce980a95 Michael Niedermayer
    
975 b71901e6 Michael Niedermayer
    /**
976 64863965 Michael Niedermayer
     * pass1 encoding statistics output buffer.
977
     * - encoding: set by lavc
978
     * - decoding: unused
979 b71901e6 Michael Niedermayer
     */
980 64863965 Michael Niedermayer
    char *stats_out;
981 b71901e6 Michael Niedermayer
    
982
    /**
983
     * pass2 encoding statistics input buffer.
984
     * concatenated stuff from stats_out of pass1 should be placed here
985 64863965 Michael Niedermayer
     * - encoding: allocated/set/freed by user
986
     * - decoding: unused
987 b71901e6 Michael Niedermayer
     */
988
    char *stats_in;
989
    
990
    /**
991 64863965 Michael Niedermayer
     * ratecontrol qmin qmax limiting method.
992 b71901e6 Michael Niedermayer
     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
993 64863965 Michael Niedermayer
     * - encoding: set by user.
994
     * - decoding: unused
995 b71901e6 Michael Niedermayer
     */
996 ce980a95 Michael Niedermayer
    float rc_qsquish;
997 b71901e6 Michael Niedermayer
998 ce980a95 Michael Niedermayer
    float rc_qmod_amp;
999
    int rc_qmod_freq;
1000 b71901e6 Michael Niedermayer
    
1001
    /**
1002 64863965 Michael Niedermayer
     * ratecontrol override, see RcOverride.
1003
     * - encoding: allocated/set/freed by user.
1004
     * - decoding: unused
1005 b71901e6 Michael Niedermayer
     */
1006 ce980a95 Michael Niedermayer
    RcOverride *rc_override;
1007
    int rc_override_count;
1008 b71901e6 Michael Niedermayer
    
1009
    /**
1010 64863965 Michael Niedermayer
     * rate control equation.
1011
     * - encoding: set by user
1012
     * - decoding: unused
1013 b71901e6 Michael Niedermayer
     */
1014 ce980a95 Michael Niedermayer
    char *rc_eq;
1015 b71901e6 Michael Niedermayer
    
1016
    /**
1017 64863965 Michael Niedermayer
     * maximum bitrate.
1018
     * - encoding: set by user.
1019
     * - decoding: unused
1020 b71901e6 Michael Niedermayer
     */
1021 ce980a95 Michael Niedermayer
    int rc_max_rate;
1022 b71901e6 Michael Niedermayer
    
1023
    /**
1024 64863965 Michael Niedermayer
     * minimum bitrate.
1025
     * - encoding: set by user.
1026
     * - decoding: unused
1027 b71901e6 Michael Niedermayer
     */
1028 ce980a95 Michael Niedermayer
    int rc_min_rate;
1029 b71901e6 Michael Niedermayer
    
1030
    /**
1031 64863965 Michael Niedermayer
     * decoder bitstream buffer size.
1032
     * - encoding: set by user.
1033
     * - decoding: unused
1034 b71901e6 Michael Niedermayer
     */
1035 ce980a95 Michael Niedermayer
    int rc_buffer_size;
1036
    float rc_buffer_aggressivity;
1037 b71901e6 Michael Niedermayer
1038
    /**
1039 64863965 Michael Niedermayer
     * qscale factor between p and i frames.
1040 a1e257b2 Michael Niedermayer
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1041
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
1042 64863965 Michael Niedermayer
     * - encoding: set by user.
1043
     * - decoding: unused
1044 b71901e6 Michael Niedermayer
     */
1045
    float i_quant_factor;
1046
    
1047
    /**
1048 64863965 Michael Niedermayer
     * qscale offset between p and i frames.
1049
     * - encoding: set by user.
1050
     * - decoding: unused
1051 b71901e6 Michael Niedermayer
     */
1052
    float i_quant_offset;
1053
    
1054
    /**
1055 64863965 Michael Niedermayer
     * initial complexity for pass1 ratecontrol.
1056
     * - encoding: set by user.
1057
     * - decoding: unused
1058 b71901e6 Michael Niedermayer
     */
1059 ce980a95 Michael Niedermayer
    float rc_initial_cplx;
1060 917e06c8 Fabrice Bellard
1061 b71901e6 Michael Niedermayer
    /**
1062 64863965 Michael Niedermayer
     * dct algorithm, see FF_DCT_* below.
1063
     * - encoding: set by user
1064
     * - decoding: unused
1065 b71901e6 Michael Niedermayer
     */
1066 28db7fce Michael Niedermayer
    int dct_algo;
1067 c7e07931 Martin Olschewski
#define FF_DCT_AUTO    0
1068 28db7fce Michael Niedermayer
#define FF_DCT_FASTINT 1
1069 c7e07931 Martin Olschewski
#define FF_DCT_INT     2
1070
#define FF_DCT_MMX     3
1071
#define FF_DCT_MLIB    4
1072 05c4072b Michael Niedermayer
#define FF_DCT_ALTIVEC 5
1073 65e4c8c9 Michael Niedermayer
#define FF_DCT_FAAN    6
1074 c5d309f2 Michael Niedermayer
    
1075
    /**
1076 64863965 Michael Niedermayer
     * luminance masking (0-> disabled).
1077
     * - encoding: set by user
1078
     * - decoding: unused
1079 c5d309f2 Michael Niedermayer
     */
1080
    float lumi_masking;
1081
    
1082
    /**
1083 64863965 Michael Niedermayer
     * temporary complexity masking (0-> disabled).
1084
     * - encoding: set by user
1085
     * - decoding: unused
1086 c5d309f2 Michael Niedermayer
     */
1087
    float temporal_cplx_masking;
1088
    
1089
    /**
1090 64863965 Michael Niedermayer
     * spatial complexity masking (0-> disabled).
1091
     * - encoding: set by user
1092
     * - decoding: unused
1093 c5d309f2 Michael Niedermayer
     */
1094
    float spatial_cplx_masking;
1095
    
1096
    /**
1097 64863965 Michael Niedermayer
     * p block masking (0-> disabled).
1098
     * - encoding: set by user
1099
     * - decoding: unused
1100 c5d309f2 Michael Niedermayer
     */
1101
    float p_masking;
1102 15415af4 Michael Niedermayer
1103 5e746b99 Michael Niedermayer
    /**
1104 64863965 Michael Niedermayer
     * darkness masking (0-> disabled).
1105
     * - encoding: set by user
1106
     * - decoding: unused
1107 5e746b99 Michael Niedermayer
     */
1108
    float dark_masking;
1109 0c2dd16e Michael Niedermayer
    
1110 3a694b04 Nick Kurshev
    
1111
    /* for binary compatibility */
1112
    int unused;
1113
    
1114 0c2dd16e Michael Niedermayer
    /**
1115 64863965 Michael Niedermayer
     * idct algorithm, see FF_IDCT_* below.
1116
     * - encoding: set by user
1117
     * - decoding: set by user
1118 2ad1516a Michael Niedermayer
     */
1119
    int idct_algo;
1120
#define FF_IDCT_AUTO         0
1121
#define FF_IDCT_INT          1
1122
#define FF_IDCT_SIMPLE       2
1123
#define FF_IDCT_SIMPLEMMX    3
1124
#define FF_IDCT_LIBMPEG2MMX  4
1125
#define FF_IDCT_PS2          5
1126
#define FF_IDCT_MLIB         6
1127
#define FF_IDCT_ARM          7
1128 05c4072b Michael Niedermayer
#define FF_IDCT_ALTIVEC      8
1129 b82cdc72 Michael Niedermayer
#define FF_IDCT_SH4          9
1130 bd7d1ea7 Alex Beregszaszi
#define FF_IDCT_SIMPLEARM    10
1131 0fa8158d Michael Niedermayer
#define FF_IDCT_H264         11
1132 2ad1516a Michael Niedermayer
1133 144f0625 Michael Niedermayer
    /**
1134 64863965 Michael Niedermayer
     * slice count.
1135
     * - encoding: set by lavc
1136
     * - decoding: set by user (or 0)
1137 144f0625 Michael Niedermayer
     */
1138
    int slice_count;
1139
    /**
1140 64863965 Michael Niedermayer
     * slice offsets in the frame in bytes.
1141
     * - encoding: set/allocated by lavc
1142
     * - decoding: set/allocated by user (or NULL)
1143 144f0625 Michael Niedermayer
     */
1144
    int *slice_offset;
1145
1146 4d2858de Michael Niedermayer
    /**
1147 64863965 Michael Niedermayer
     * error concealment flags.
1148
     * - encoding: unused
1149
     * - decoding: set by user
1150 4d2858de Michael Niedermayer
     */
1151
    int error_concealment;
1152
#define FF_EC_GUESS_MVS   1
1153
#define FF_EC_DEBLOCK     2
1154
1155 6b72ac63 Michael Niedermayer
    /**
1156 bec89a84 Zdenek Kabelac
     * dsp_mask could be add used to disable unwanted CPU features
1157 8350df97 Zdenek Kabelac
     * CPU features (i.e. MMX, SSE. ...)
1158 bec89a84 Zdenek Kabelac
     *
1159
     * with FORCE flag you may instead enable given CPU features
1160
     * (Dangerous: usable in case of misdetection, improper usage however will
1161
     * result into program crash)
1162
     */
1163
    unsigned dsp_mask;
1164
#define FF_MM_FORCE        0x80000000 /* force usage of selected flags (OR) */
1165
    /* lower 16 bits - CPU features */
1166
#ifdef HAVE_MMX
1167
#define FF_MM_MMX        0x0001 /* standard MMX */
1168
#define FF_MM_3DNOW        0x0004 /* AMD 3DNOW */
1169
#define FF_MM_MMXEXT        0x0002 /* SSE integer functions or AMD MMX ext */
1170
#define FF_MM_SSE        0x0008 /* SSE functions */
1171
#define FF_MM_SSE2        0x0010 /* PIV SSE2 functions */
1172 e42a152b Michael Niedermayer
#define FF_MM_3DNOWEXT        0x0020 /* AMD 3DNowExt */
1173 bec89a84 Zdenek Kabelac
#endif /* HAVE_MMX */
1174 11f18faf Michael Niedermayer
1175
    /**
1176 64863965 Michael Niedermayer
     * bits per sample/pixel from the demuxer (needed for huffyuv).
1177
     * - encoding: set by lavc
1178
     * - decoding: set by user
1179 11f18faf Michael Niedermayer
     */
1180
     int bits_per_sample;
1181
    
1182
    /**
1183 64863965 Michael Niedermayer
     * prediction method (needed for huffyuv).
1184
     * - encoding: set by user
1185
     * - decoding: unused
1186 11f18faf Michael Niedermayer
     */
1187
     int prediction_method;
1188
#define FF_PRED_LEFT   0
1189
#define FF_PRED_PLANE  1
1190
#define FF_PRED_MEDIAN 2
1191 5d3cea3a Michael Niedermayer
    
1192
    /**
1193 5ff85f1d Michael Niedermayer
     * sample aspect ratio (0 if unknown).
1194 1f26c6f3 Michael Niedermayer
     * numerator and denominator must be relative prime and smaller then 256 for some video standards
1195 64863965 Michael Niedermayer
     * - encoding: set by user.
1196
     * - decoding: set by lavc.
1197 5d3cea3a Michael Niedermayer
     */
1198 5ff85f1d Michael Niedermayer
    AVRational sample_aspect_ratio;
1199 1e491e29 Michael Niedermayer
1200
    /**
1201 64863965 Michael Niedermayer
     * the picture in the bitstream.
1202
     * - encoding: set by lavc
1203
     * - decoding: set by lavc
1204 1e491e29 Michael Niedermayer
     */
1205 492cd3a9 Michael Niedermayer
    AVFrame *coded_frame;
1206 c8c437bc Michael Niedermayer
1207
    /**
1208 64863965 Michael Niedermayer
     * debug.
1209
     * - encoding: set by user.
1210
     * - decoding: set by user.
1211 c8c437bc Michael Niedermayer
     */
1212
    int debug;
1213
#define FF_DEBUG_PICT_INFO 1
1214
#define FF_DEBUG_RC        2
1215
#define FF_DEBUG_BITSTREAM 4
1216
#define FF_DEBUG_MB_TYPE   8
1217
#define FF_DEBUG_QP        16
1218
#define FF_DEBUG_MV        32
1219 8289c6fa Wolfgang Hesseler
#define FF_DEBUG_DCT_COEFF 0x00000040
1220 41773b73 Michael Niedermayer
#define FF_DEBUG_SKIP      0x00000080
1221
#define FF_DEBUG_STARTCODE 0x00000100
1222
#define FF_DEBUG_PTS       0x00000200
1223 46b4feec Michael Niedermayer
#define FF_DEBUG_ER        0x00000400
1224 0da71265 Michael Niedermayer
#define FF_DEBUG_MMCO      0x00000800
1225 8fc6c2b5 Michael Niedermayer
#define FF_DEBUG_BUGS      0x00001000
1226 864119b6 Michael Niedermayer
#define FF_DEBUG_VIS_QP    0x00002000
1227
#define FF_DEBUG_VIS_MB_TYPE 0x00004000
1228 140cb663 Michael Niedermayer
    
1229
    /**
1230 0c9bbaec Wolfgang Hesseler
     * debug.
1231
     * - encoding: set by user.
1232
     * - decoding: set by user.
1233
     */
1234
    int debug_mv;
1235
#define FF_DEBUG_VIS_MV_P_FOR  0x00000001 //visualize forward predicted MVs of P frames
1236
#define FF_DEBUG_VIS_MV_B_FOR  0x00000002 //visualize forward predicted MVs of B frames
1237
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1238
1239
    /**
1240 64863965 Michael Niedermayer
     * error.
1241
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1242
     * - decoding: unused
1243 140cb663 Michael Niedermayer
     */
1244
    uint64_t error[4];
1245 17a70fde Michael Niedermayer
    
1246
    /**
1247 64863965 Michael Niedermayer
     * minimum MB quantizer.
1248
     * - encoding: set by user.
1249
     * - decoding: unused
1250 17a70fde Michael Niedermayer
     */
1251
    int mb_qmin;
1252
1253
    /**
1254 64863965 Michael Niedermayer
     * maximum MB quantizer.
1255
     * - encoding: set by user.
1256
     * - decoding: unused
1257 17a70fde Michael Niedermayer
     */
1258
    int mb_qmax;
1259 1457ab52 Michael Niedermayer
    
1260
    /**
1261 64863965 Michael Niedermayer
     * motion estimation compare function.
1262
     * - encoding: set by user.
1263
     * - decoding: unused
1264 1457ab52 Michael Niedermayer
     */
1265
    int me_cmp;
1266
    /**
1267 64863965 Michael Niedermayer
     * subpixel motion estimation compare function.
1268
     * - encoding: set by user.
1269
     * - decoding: unused
1270 1457ab52 Michael Niedermayer
     */
1271
    int me_sub_cmp;
1272
    /**
1273 64863965 Michael Niedermayer
     * macroblock compare function (not supported yet).
1274
     * - encoding: set by user.
1275
     * - decoding: unused
1276 1457ab52 Michael Niedermayer
     */
1277
    int mb_cmp;
1278 622348f9 Michael Niedermayer
    /**
1279
     * interlaced dct compare function
1280
     * - encoding: set by user.
1281
     * - decoding: unused
1282
     */
1283
    int ildct_cmp;
1284 1457ab52 Michael Niedermayer
#define FF_CMP_SAD  0
1285
#define FF_CMP_SSE  1
1286
#define FF_CMP_SATD 2
1287
#define FF_CMP_DCT  3
1288
#define FF_CMP_PSNR 4
1289
#define FF_CMP_BIT  5
1290
#define FF_CMP_RD   6
1291
#define FF_CMP_ZERO 7
1292 622348f9 Michael Niedermayer
#define FF_CMP_VSAD 8
1293
#define FF_CMP_VSSE 9
1294 e6a2ac34 Michael Niedermayer
#define FF_CMP_NSSE 10
1295 26efc54e Michael Niedermayer
#define FF_CMP_W53  11
1296
#define FF_CMP_W97  12
1297 0fd6aea1 Michael Niedermayer
#define FF_CMP_DCTMAX 13
1298 1457ab52 Michael Niedermayer
#define FF_CMP_CHROMA 256
1299
    
1300
    /**
1301 64863965 Michael Niedermayer
     * ME diamond size & shape.
1302
     * - encoding: set by user.
1303
     * - decoding: unused
1304 1457ab52 Michael Niedermayer
     */
1305
    int dia_size;
1306 b07a5980 Michael Niedermayer
1307
    /**
1308 64863965 Michael Niedermayer
     * amount of previous MV predictors (2a+1 x 2a+1 square).
1309
     * - encoding: set by user.
1310
     * - decoding: unused
1311 b07a5980 Michael Niedermayer
     */
1312
    int last_predictor_count;
1313 70ac76c0 Michael Niedermayer
1314 f5fb6b34 Michael Niedermayer
    /**
1315 64863965 Michael Niedermayer
     * pre pass for motion estimation.
1316
     * - encoding: set by user.
1317
     * - decoding: unused
1318 f5fb6b34 Michael Niedermayer
     */
1319
    int pre_me;
1320 b07a5980 Michael Niedermayer
1321 70ac76c0 Michael Niedermayer
    /**
1322 64863965 Michael Niedermayer
     * motion estimation pre pass compare function.
1323
     * - encoding: set by user.
1324
     * - decoding: unused
1325 70ac76c0 Michael Niedermayer
     */
1326
    int me_pre_cmp;
1327 826f429a Michael Niedermayer
1328 70ac76c0 Michael Niedermayer
    /**
1329 64863965 Michael Niedermayer
     * ME pre pass diamond size & shape.
1330
     * - encoding: set by user.
1331
     * - decoding: unused
1332 70ac76c0 Michael Niedermayer
     */
1333
    int pre_dia_size;
1334
1335 826f429a Michael Niedermayer
    /**
1336 64863965 Michael Niedermayer
     * subpel ME quality.
1337
     * - encoding: set by user.
1338
     * - decoding: unused
1339 826f429a Michael Niedermayer
     */
1340
    int me_subpel_quality;
1341
1342 a33c7159 Michael Niedermayer
    /**
1343 64863965 Michael Niedermayer
     * callback to negotiate the pixelFormat.
1344 a33c7159 Michael Niedermayer
     * @param fmt is the list of formats which are supported by the codec,
1345
     * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1346
     * the first is allways the native one
1347
     * @return the choosen format
1348 64863965 Michael Niedermayer
     * - encoding: unused
1349
     * - decoding: set by user, if not set then the native format will always be choosen
1350 a33c7159 Michael Niedermayer
     */
1351 494c56d3 Ivan Kalvachev
    enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
1352 e2f9490e Fabrice Bellard
1353
    /**
1354
     * DTG active format information (additionnal aspect ratio
1355
     * information only used in DVB MPEG2 transport streams). 0 if
1356
     * not set.
1357
     * 
1358 64863965 Michael Niedermayer
     * - encoding: unused.
1359
     * - decoding: set by decoder 
1360 e2f9490e Fabrice Bellard
     */
1361
    int dtg_active_format;
1362
#define FF_DTG_AFD_SAME         8
1363
#define FF_DTG_AFD_4_3          9
1364
#define FF_DTG_AFD_16_9         10
1365
#define FF_DTG_AFD_14_9         11
1366
#define FF_DTG_AFD_4_3_SP_14_9  13
1367
#define FF_DTG_AFD_16_9_SP_14_9 14
1368
#define FF_DTG_AFD_SP_4_3       15
1369
1370 ebbcdc9a Michael Niedermayer
    /**
1371
     * Maximum motion estimation search range in subpel units.
1372
     * if 0 then no limit
1373
     * 
1374 64863965 Michael Niedermayer
     * - encoding: set by user.
1375
     * - decoding: unused.
1376 ebbcdc9a Michael Niedermayer
     */
1377 59e0ac8e Zdenek Kabelac
    int me_range;
1378 ebbcdc9a Michael Niedermayer
1379 65f7062d Michael Niedermayer
    /**
1380
     * frame_rate_base.
1381
     * for variable fps this is 1
1382
     * - encoding: set by user.
1383
     * - decoding: set by lavc.
1384
     * @todo move this after frame_rate
1385
     */
1386
1387 1984f635 Michael Niedermayer
    int frame_rate_base;
1388
    /**
1389
     * intra quantizer bias.
1390
     * - encoding: set by user.
1391
     * - decoding: unused
1392
     */
1393
    int intra_quant_bias;
1394
#define FF_DEFAULT_QUANT_BIAS 999999
1395
    
1396
    /**
1397
     * inter quantizer bias.
1398
     * - encoding: set by user.
1399
     * - decoding: unused
1400
     */
1401
    int inter_quant_bias;
1402 5cd62665 Zdenek Kabelac
1403
    /**
1404
     * color table ID.
1405
     * - encoding: unused.
1406
     * - decoding: which clrtable should be used for 8bit RGB images
1407
     *             table have to be stored somewhere FIXME
1408
     */
1409
    int color_table_id;
1410 1984f635 Michael Niedermayer
    
1411 d90cf87b Michael Niedermayer
    /**
1412
     * internal_buffer count. 
1413
     * Dont touch, used by lavc default_get_buffer()
1414
     */
1415
    int internal_buffer_count;
1416
    
1417
    /**
1418
     * internal_buffers. 
1419
     * Dont touch, used by lavc default_get_buffer()
1420
     */
1421
    void *internal_buffer;
1422 158c7f05 Michael Niedermayer
1423
#define FF_LAMBDA_SHIFT 7
1424
#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1425
#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1426
#define FF_LAMBDA_MAX (256*128-1)
1427
1428
#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
1429 3d2e8cce Michael Niedermayer
    /**
1430
     * global quality for codecs which cannot change it per frame.
1431
     * this should be proportional to MPEG1/2/4 qscale.
1432
     * - encoding: set by user.
1433
     * - decoding: unused
1434
     */
1435
    int global_quality;
1436 11e659c2 Michael Niedermayer
    
1437
#define FF_CODER_TYPE_VLC   0
1438
#define FF_CODER_TYPE_AC    1
1439
    /**
1440
     * coder type
1441
     * - encoding: set by user.
1442
     * - decoding: unused
1443
     */
1444
    int coder_type;
1445
1446
    /**
1447
     * context model
1448
     * - encoding: set by user.
1449
     * - decoding: unused
1450
     */
1451
    int context_model;
1452 3bb07d61 Michael Niedermayer
    
1453
    /**
1454
     * slice flags
1455
     * - encoding: unused
1456
     * - decoding: set by user.
1457
     */
1458
    int slice_flags;
1459
#define SLICE_FLAG_CODED_ORDER    0x0001 ///< draw_horiz_band() is called in coded order instead of display
1460
#define SLICE_FLAG_ALLOW_FIELD    0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1461
#define SLICE_FLAG_ALLOW_PLANE    0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1462
1463 fb364ada Ivan Kalvachev
    /**
1464
     * XVideo Motion Acceleration
1465
     * - encoding: forbidden
1466
     * - decoding: set by decoder
1467
     */
1468
    int xvmc_acceleration;
1469 7d1c3fc1 Michael Niedermayer
    
1470
    /**
1471
     * macroblock decision mode
1472
     * - encoding: set by user.
1473
     * - decoding: unused
1474
     */
1475
    int mb_decision;
1476
#define FF_MB_DECISION_SIMPLE 0        ///< uses mb_cmp
1477
#define FF_MB_DECISION_BITS   1        ///< chooses the one which needs the fewest bits
1478
#define FF_MB_DECISION_RD     2        ///< rate distoration
1479 d6eb3c50 Michael Niedermayer
1480
    /**
1481
     * custom intra quantization matrix
1482
     * - encoding: set by user, can be NULL
1483
     * - decoding: set by lavc
1484
     */
1485
    uint16_t *intra_matrix;
1486
1487
    /**
1488
     * custom inter quantization matrix
1489
     * - encoding: set by user, can be NULL
1490
     * - decoding: set by lavc
1491
     */
1492
    uint16_t *inter_matrix;
1493 7d1c3fc1 Michael Niedermayer
    
1494 541ae140 Michael Niedermayer
    /**
1495
     * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1496
     * this is used to workaround some encoder bugs
1497
     * - encoding: unused
1498
     * - decoding: set by user, will be converted to upper case by lavc during init
1499
     */
1500
    unsigned int stream_codec_tag;
1501 05fbd0a2 Michael Niedermayer
1502
    /**
1503
     * scene change detection threshold.
1504
     * 0 is default, larger means fewer detected scene changes
1505
     * - encoding: set by user.
1506
     * - decoding: unused
1507
     */
1508
    int scenechange_threshold;
1509 158c7f05 Michael Niedermayer
1510
    /**
1511
     * minimum lagrange multipler
1512
     * - encoding: set by user.
1513
     * - decoding: unused
1514
     */
1515
    int lmin;
1516
1517
    /**
1518
     * maximum lagrange multipler
1519
     * - encoding: set by user.
1520
     * - decoding: unused
1521
     */
1522
    int lmax;
1523 2a2bbcb0 Mike Melanson
1524
    /**
1525
     * Palette control structure
1526
     * - encoding: ??? (no palette-enabled encoder yet)
1527
     * - decoding: set by user.
1528
     */
1529
    struct AVPaletteControl *palctrl;
1530 821cb11f Michael Niedermayer
1531
    /**
1532
     * noise reduction strength
1533
     * - encoding: set by user.
1534
     * - decoding: unused
1535
     */
1536
    int noise_reduction;
1537 fa384dcc Michael Niedermayer
    
1538 074c4ca7 Roberto Togni
    /**
1539 e1c2a5a0 Roberto Togni
     * called at the beginning of a frame to get cr buffer for it.
1540
     * buffer type (size, hints) must be the same. lavc won't check it.
1541
     * lavc will pass previous buffer in pic, function should return
1542
     * same buffer or new buffer with old frame "painted" into it.
1543
     * if pic.data[0] == NULL must behave like get_buffer().
1544 074c4ca7 Roberto Togni
     * - encoding: unused
1545 e1c2a5a0 Roberto Togni
     * - decoding: set by lavc, user can override
1546 074c4ca7 Roberto Togni
     */
1547 e1c2a5a0 Roberto Togni
    int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
1548 ba58dabc Michael Niedermayer
1549
    /**
1550
     * number of bits which should be loaded into the rc buffer before decoding starts
1551
     * - encoding: set by user.
1552
     * - decoding: unused
1553
     */
1554
    int rc_initial_buffer_occupancy;
1555
1556
    /**
1557
     *
1558
     * - encoding: set by user.
1559
     * - decoding: unused
1560
     */
1561
    int inter_threshold;
1562
1563
    /**
1564
     * CODEC_FLAG2_*.
1565
     * - encoding: set by user.
1566
     * - decoding: set by user.
1567
     */
1568
    int flags2;
1569 7ebfc0ea Michael Niedermayer
1570
    /**
1571
     * simulates errors in the bitstream to test error concealment.
1572
     * - encoding: set by user.
1573
     * - decoding: unused.
1574
     */
1575
    int error_rate;
1576 a1e257b2 Michael Niedermayer
    
1577
    /**
1578
     * MP3 antialias algorithm, see FF_AA_* below.
1579
     * - encoding: unused
1580
     * - decoding: set by user
1581
     */
1582
    int antialias_algo;
1583
#define FF_AA_AUTO    0
1584
#define FF_AA_FASTINT 1 //not implemented yet
1585
#define FF_AA_INT     2
1586
#define FF_AA_FLOAT   3
1587 77ea0d4b Michael Niedermayer
    /**
1588
     * Quantizer noise shaping.
1589
     * - encoding: set by user
1590
     * - decoding: unused
1591
     */
1592
    int quantizer_noise_shaping;
1593 9c3d33d6 Michael Niedermayer
1594
    /**
1595
     * Thread count.
1596
     * is used to decide how many independant tasks should be passed to execute()
1597
     * - encoding: set by user
1598
     * - decoding: set by user
1599
     */
1600
    int thread_count;
1601
    
1602
    /**
1603
     * the codec may call this to execute several independant things. it will return only after
1604
     * finishing all tasks, the user may replace this with some multithreaded implementation, the
1605
     * default implementation will execute the parts serially
1606 399cec2f Michael Niedermayer
     * @param count the number of things to execute
1607 9c3d33d6 Michael Niedermayer
     * - encoding: set by lavc, user can override
1608
     * - decoding: set by lavc, user can override
1609
     */
1610
    int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
1611
    
1612
    /**
1613
     * Thread opaque.
1614
     * can be used by execute() to store some per AVCodecContext stuff.
1615
     * - encoding: set by execute()
1616
     * - decoding: set by execute()
1617
     */
1618
    void *thread_opaque;
1619 a4d36c11 Michael Niedermayer
1620
    /**
1621 f20f8a8b Michael Niedermayer
     * Motion estimation threshold. under which no motion estimation is 
1622
     * performed, but instead the user specified motion vectors are used
1623 a4d36c11 Michael Niedermayer
     * 
1624
     * - encoding: set by user
1625 f20f8a8b Michael Niedermayer
     * - decoding: unused
1626 a4d36c11 Michael Niedermayer
     */
1627 2750b827 Michael Niedermayer
     int me_threshold;
1628 f20f8a8b Michael Niedermayer
1629
    /**
1630
     * Macroblock threshold. under which the user specified macroblock types will be used
1631
     * - encoding: set by user
1632
     * - decoding: unused
1633
     */
1634
     int mb_threshold;
1635 bf266e19 Michael Niedermayer
1636
    /**
1637 d4c5d2ad Michael Niedermayer
     * precision of the intra dc coefficient - 8.
1638 bf266e19 Michael Niedermayer
     * - encoding: set by user
1639
     * - decoding: unused
1640
     */
1641
     int intra_dc_precision;
1642 d4c5d2ad Michael Niedermayer
1643
    /**
1644
     * noise vs. sse weight for the nsse comparsion function.
1645
     * - encoding: set by user
1646
     * - decoding: unused
1647
     */
1648
     int nsse_weight;
1649 0dfd33c3 Michael Niedermayer
1650
    /**
1651
     * number of macroblock rows at the top which are skiped.
1652
     * - encoding: unused
1653
     * - decoding: set by user
1654
     */
1655
     int skip_top;
1656
1657
    /**
1658
     * number of macroblock rows at the bottom which are skiped.
1659
     * - encoding: unused
1660
     * - decoding: set by user
1661
     */
1662
     int skip_bottom;
1663 baced9f5 Michael Niedermayer
1664
    /**
1665
     * profile
1666
     * - encoding: set by user
1667
     * - decoding: set by lavc
1668
     */
1669
     int profile;
1670
#define FF_PROFILE_UNKNOWN -99
1671
1672
    /**
1673
     * level
1674
     * - encoding: set by user
1675
     * - decoding: set by lavc
1676
     */
1677
     int level;
1678
#define FF_LEVEL_UNKNOWN -99
1679 178fcca8 Michael Niedermayer
1680
    /**
1681
     * low resolution decoding. 1-> 1/2 size, 2->1/4 size
1682
     * - encoding: unused
1683
     * - decoding: set by user
1684
     */
1685
     int lowres;
1686 21adafec Michael Niedermayer
1687
    /**
1688 bbf18b21 Michael Niedermayer
     * bitsream width / height. may be different from width/height if lowres
1689 21adafec Michael Niedermayer
     * or other things are used
1690
     * - encoding: unused
1691
     * - decoding: set by user before init if known, codec should override / dynamically change if needed
1692
     */
1693
    int coded_width, coded_height;
1694 bbf18b21 Michael Niedermayer
1695
    /**
1696
     * frame skip threshold
1697
     * - encoding: set by user
1698
     * - decoding: unused
1699
     */
1700
    int frame_skip_threshold;
1701
1702
    /**
1703
     * frame skip factor
1704
     * - encoding: set by user
1705
     * - decoding: unused
1706
     */
1707
    int frame_skip_factor;
1708 0fd6aea1 Michael Niedermayer
1709
    /**
1710
     * frame skip exponent
1711
     * - encoding: set by user
1712
     * - decoding: unused
1713
     */
1714
    int frame_skip_exp;
1715
1716
    /**
1717
     * frame skip comparission function
1718
     * - encoding: set by user.
1719
     * - decoding: unused
1720
     */
1721
    int frame_skip_cmp;
1722 de6d9b64 Fabrice Bellard
} AVCodecContext;
1723
1724 97d96aaa Zdenek Kabelac
1725 64863965 Michael Niedermayer
/**
1726
 * AVOption.
1727
 */
1728 97d96aaa Zdenek Kabelac
typedef struct AVOption {
1729
    /** options' name */
1730
    const char *name; /* if name is NULL, it indicates a link to next */
1731 bec89a84 Zdenek Kabelac
    /** short English text help or const struct AVOption* subpointer */
1732
    const char *help; //        const struct AVOption* sub;
1733 97d96aaa Zdenek Kabelac
    /** offset to context structure where the parsed value should be stored */
1734
    int offset;
1735
    /** options' type */
1736
    int type;
1737 64863965 Michael Niedermayer
#define FF_OPT_TYPE_BOOL 1      ///< boolean - true,1,on  (or simply presence)
1738
#define FF_OPT_TYPE_DOUBLE 2    ///< double
1739
#define FF_OPT_TYPE_INT 3       ///< integer
1740
#define FF_OPT_TYPE_STRING 4    ///< string (finished with \0)
1741
#define FF_OPT_TYPE_MASK 0x1f        ///< mask for types - upper bits are various flags
1742 97d96aaa Zdenek Kabelac
//#define FF_OPT_TYPE_EXPERT 0x20 // flag for expert option
1743
#define FF_OPT_TYPE_FLAG (FF_OPT_TYPE_BOOL | 0x40)
1744
#define FF_OPT_TYPE_RCOVERRIDE (FF_OPT_TYPE_STRING | 0x80)
1745
    /** min value  (min == max   ->  no limits) */
1746
    double min;
1747
    /** maximum value for double/int */
1748
    double max;
1749
    /** default boo [0,1]l/double/int value */
1750
    double defval;
1751
    /**
1752
     * default string value (with optional semicolon delimited extra option-list
1753
     * i.e.   option1;option2;option3
1754
     * defval might select other then first argument as default
1755
     */
1756
    const char *defstr;
1757
#define FF_OPT_MAX_DEPTH 10
1758
} AVOption;
1759
1760 64863965 Michael Niedermayer
/**
1761 bec89a84 Zdenek Kabelac
 * Parse option(s) and sets fields in passed structure
1762
 * @param strct        structure where the parsed results will be written
1763
 * @param list  list with AVOptions
1764
 * @param opts        string with options for parsing
1765
 */
1766
int avoption_parse(void* strct, const AVOption* list, const char* opts);
1767
1768
1769
/**
1770 64863965 Michael Niedermayer
 * AVCodec.
1771
 */
1772 de6d9b64 Fabrice Bellard
typedef struct AVCodec {
1773 18f77016 Zdenek Kabelac
    const char *name;
1774 5d234974 Zdenek Kabelac
    enum CodecType type;
1775 9297ddd3 Michael Niedermayer
    enum CodecID id;
1776 de6d9b64 Fabrice Bellard
    int priv_data_size;
1777
    int (*init)(AVCodecContext *);
1778 0c1a9eda Zdenek Kabelac
    int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
1779 de6d9b64 Fabrice Bellard
    int (*close)(AVCodecContext *);
1780 0fd90455 Michael Niedermayer
    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
1781 0c1a9eda Zdenek Kabelac
                  uint8_t *buf, int buf_size);
1782 bf89e6b1 Fabrice Bellard
    int capabilities;
1783 97d96aaa Zdenek Kabelac
    const AVOption *options;
1784 de6d9b64 Fabrice Bellard
    struct AVCodec *next;
1785 7a06ff14 Michael Niedermayer
    void (*flush)(AVCodecContext *);
1786 b0df362b Zdenek Kabelac
    const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
1787 fcee0164 Michael Niedermayer
    const enum PixelFormat *pix_fmts;       ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
1788 de6d9b64 Fabrice Bellard
} AVCodec;
1789
1790 97d96aaa Zdenek Kabelac
/**
1791 d7425f59 Michael Niedermayer
 * four components are given, that's all.
1792
 * the last component is alpha
1793
 */
1794 de6d9b64 Fabrice Bellard
typedef struct AVPicture {
1795 0c1a9eda Zdenek Kabelac
    uint8_t *data[4];
1796 cd394651 Michael Niedermayer
    int linesize[4];       ///< number of bytes per line
1797 de6d9b64 Fabrice Bellard
} AVPicture;
1798
1799 ba118447 Mike Melanson
/**
1800
 * AVPaletteControl
1801
 * This structure defines a method for communicating palette changes
1802
 * between and demuxer and a decoder.
1803
 */
1804 2e99641b Roberto Togni
#define AVPALETTE_SIZE 1024
1805 432d84c3 Michael Niedermayer
#define AVPALETTE_COUNT 256
1806 ba118447 Mike Melanson
typedef struct AVPaletteControl {
1807
1808
    /* demuxer sets this to 1 to indicate the palette has changed;
1809
     * decoder resets to 0 */
1810
    int palette_changed;
1811
1812 2a2bbcb0 Mike Melanson
    /* 4-byte ARGB palette entries, stored in native byte order; note that
1813
     * the individual palette components should be on a 8-bit scale; if
1814
     * the palette data comes from a IBM VGA native format, the component
1815
     * data is probably 6 bits in size and needs to be scaled */
1816 2e99641b Roberto Togni
    unsigned int palette[AVPALETTE_COUNT];
1817 ba118447 Mike Melanson
1818
} AVPaletteControl;
1819
1820 de6d9b64 Fabrice Bellard
extern AVCodec ac3_encoder;
1821
extern AVCodec mp2_encoder;
1822 9d36bdc9 Juanjo
extern AVCodec mp3lame_encoder;
1823 81e0d0b4 Mark Hills
extern AVCodec oggvorbis_encoder;
1824 29d48296 Michael Niedermayer
extern AVCodec faac_encoder;
1825 1ddadfa9 Adam Thayer
extern AVCodec xvid_encoder;
1826 de6d9b64 Fabrice Bellard
extern AVCodec mpeg1video_encoder;
1827 029911d1 Michael Niedermayer
extern AVCodec mpeg2video_encoder;
1828 1c3990db Michael Niedermayer
extern AVCodec h261_encoder;
1829 de6d9b64 Fabrice Bellard
extern AVCodec h263_encoder;
1830
extern AVCodec h263p_encoder;
1831 d4f5d74a Garrick Meeker
extern AVCodec flv_encoder;
1832 de6d9b64 Fabrice Bellard
extern AVCodec rv10_encoder;
1833 68b94c35 Michael Niedermayer
extern AVCodec rv20_encoder;
1834 6faa4645 Roman Shaposhnik
extern AVCodec dvvideo_encoder;
1835 de6d9b64 Fabrice Bellard
extern AVCodec mjpeg_encoder;
1836 b1e6b355 Michael Niedermayer
extern AVCodec ljpeg_encoder;
1837 4eff7cf4 Michael Niedermayer
extern AVCodec png_encoder;
1838 5b6d5596 Michael Niedermayer
extern AVCodec ppm_encoder;
1839
extern AVCodec pgm_encoder;
1840
extern AVCodec pgmyuv_encoder;
1841
extern AVCodec pbm_encoder;
1842
extern AVCodec pam_encoder;
1843 bf89e6b1 Fabrice Bellard
extern AVCodec mpeg4_encoder;
1844 84afee34 Michael Niedermayer
extern AVCodec msmpeg4v1_encoder;
1845
extern AVCodec msmpeg4v2_encoder;
1846
extern AVCodec msmpeg4v3_encoder;
1847 0151a6f5 Michael Niedermayer
extern AVCodec wmv1_encoder;
1848
extern AVCodec wmv2_encoder;
1849 11f18faf Michael Niedermayer
extern AVCodec huffyuv_encoder;
1850 f37b9768 Loren Merritt
extern AVCodec ffvhuff_encoder;
1851 0da71265 Michael Niedermayer
extern AVCodec h264_encoder;
1852 3d2e8cce Michael Niedermayer
extern AVCodec asv1_encoder;
1853 9b56edf5 Michael Niedermayer
extern AVCodec asv2_encoder;
1854 be3564ed Michael Niedermayer
extern AVCodec vcr1_encoder;
1855 5e20f836 Michael Niedermayer
extern AVCodec ffv1_encoder;
1856 791e7b83 Michael Niedermayer
extern AVCodec snow_encoder;
1857 c3bf0288 Michael Niedermayer
extern AVCodec mdec_encoder;
1858 a273bbfb Roberto Togni
extern AVCodec zlib_encoder;
1859 54f5fd22 Alex Beregszaszi
extern AVCodec sonic_encoder;
1860
extern AVCodec sonic_ls_encoder;
1861 3b64893d Mike Melanson
extern AVCodec svq1_encoder;
1862 de6d9b64 Fabrice Bellard
1863
extern AVCodec h263_decoder;
1864 c6148de2 Michael Niedermayer
extern AVCodec h261_decoder;
1865 bf89e6b1 Fabrice Bellard
extern AVCodec mpeg4_decoder;
1866 84afee34 Michael Niedermayer
extern AVCodec msmpeg4v1_decoder;
1867
extern AVCodec msmpeg4v2_decoder;
1868
extern AVCodec msmpeg4v3_decoder;
1869 e1a9dbff Michael Niedermayer
extern AVCodec wmv1_decoder;
1870 0151a6f5 Michael Niedermayer
extern AVCodec wmv2_decoder;
1871 922bc38d Michael Niedermayer
extern AVCodec mpeg1video_decoder;
1872
extern AVCodec mpeg2video_decoder;
1873 c512b303 Ivan Kalvachev
extern AVCodec mpegvideo_decoder;
1874 fb364ada Ivan Kalvachev
extern AVCodec mpeg_xvmc_decoder;
1875 de6d9b64 Fabrice Bellard
extern AVCodec h263i_decoder;
1876 d4f5d74a Garrick Meeker
extern AVCodec flv_decoder;
1877 de6d9b64 Fabrice Bellard
extern AVCodec rv10_decoder;
1878 68b94c35 Michael Niedermayer
extern AVCodec rv20_decoder;
1879 be8ffec9 Nick Kurshev
extern AVCodec svq1_decoder;
1880 8b82a956 Michael Niedermayer
extern AVCodec svq3_decoder;
1881 020fcc94 Fabrice Bellard
extern AVCodec dvvideo_decoder;
1882 bc8d1857 Fabrice Bellard
extern AVCodec wmav1_decoder;
1883
extern AVCodec wmav2_decoder;
1884 4e66ab3b Fabrice Bellard
extern AVCodec mjpeg_decoder;
1885 b135d9fb Alex Beregszaszi
extern AVCodec mjpegb_decoder;
1886 5e83dec4 Alex Beregszaszi
extern AVCodec sp5x_decoder;
1887 4eff7cf4 Michael Niedermayer
extern AVCodec png_decoder;
1888 4b1f4f23 Juanjo
extern AVCodec mp2_decoder;
1889 a96b68b7 Fabrice Bellard
extern AVCodec mp3_decoder;
1890 3f95e843 François Revol
extern AVCodec mace3_decoder;
1891
extern AVCodec mace6_decoder;
1892 11f18faf Michael Niedermayer
extern AVCodec huffyuv_decoder;
1893 f37b9768 Loren Merritt
extern AVCodec ffvhuff_decoder;
1894 3aca208a Mark Hills
extern AVCodec oggvorbis_decoder;
1895 f70f7c6d Michael Niedermayer
extern AVCodec cyuv_decoder;
1896 0da71265 Michael Niedermayer
extern AVCodec h264_decoder;
1897 deabd4fd Mike Melanson
extern AVCodec indeo3_decoder;
1898 d86053a4 Mike Melanson
extern AVCodec vp3_decoder;
1899 f44ee2c3 Alex Beregszaszi
extern AVCodec theora_decoder;
1900 891f64b3 joca@rixmail.se
extern AVCodec amr_nb_decoder;
1901 bc634f6f Zdenek Kabelac
extern AVCodec amr_nb_encoder;
1902 d663a1fd Michael Niedermayer
extern AVCodec amr_wb_encoder;
1903
extern AVCodec amr_wb_decoder;
1904 280bd7b7 Zdenek Kabelac
extern AVCodec aac_decoder;
1905
extern AVCodec mpeg4aac_decoder;
1906 3d2e8cce Michael Niedermayer
extern AVCodec asv1_decoder;
1907 9b56edf5 Michael Niedermayer
extern AVCodec asv2_decoder;
1908 be3564ed Michael Niedermayer
extern AVCodec vcr1_decoder;
1909 3aff069b Alex Beregszaszi
extern AVCodec cljr_decoder;
1910 5e20f836 Michael Niedermayer
extern AVCodec ffv1_decoder;
1911 791e7b83 Michael Niedermayer
extern AVCodec snow_decoder;
1912 8809cfee Michael Niedermayer
extern AVCodec fourxm_decoder;
1913 c3bf0288 Michael Niedermayer
extern AVCodec mdec_decoder;
1914 3ef8be2b Mike Melanson
extern AVCodec roq_decoder;
1915
extern AVCodec interplay_video_decoder;
1916 9937e686 Mike Melanson
extern AVCodec xan_wc3_decoder;
1917 2fdf638b Mike Melanson
extern AVCodec rpza_decoder;
1918
extern AVCodec cinepak_decoder;
1919
extern AVCodec msrle_decoder;
1920
extern AVCodec msvideo1_decoder;
1921 6955a882 Mike Melanson
extern AVCodec vqa_decoder;
1922 4120a53a Mike Melanson
extern AVCodec idcin_decoder;
1923 1dc1ed99 Roberto Togni
extern AVCodec eightbps_decoder;
1924 11e29a41 Mike Melanson
extern AVCodec smc_decoder;
1925 42cad81a Mike Melanson
extern AVCodec flic_decoder;
1926 fafa0b75 Mike Melanson
extern AVCodec vmdvideo_decoder;
1927
extern AVCodec vmdaudio_decoder;
1928 9a4117d5 Mike Melanson
extern AVCodec truemotion1_decoder;
1929 a273bbfb Roberto Togni
extern AVCodec mszh_decoder;
1930
extern AVCodec zlib_decoder;
1931 b8414bbd Nick Kurshev
extern AVCodec ra_144_decoder;
1932
extern AVCodec ra_288_decoder;
1933 3ef8be2b Mike Melanson
extern AVCodec roq_dpcm_decoder;
1934
extern AVCodec interplay_dpcm_decoder;
1935 9937e686 Mike Melanson
extern AVCodec xan_dpcm_decoder;
1936 d08d7142 Mike Melanson
extern AVCodec sol_dpcm_decoder;
1937 54f5fd22 Alex Beregszaszi
extern AVCodec sonic_decoder;
1938 070ed1bc Mike Melanson
extern AVCodec qtrle_decoder;
1939 ac2570a8 Michael Niedermayer
extern AVCodec flac_decoder;
1940 9d53d58e Mike Melanson
extern AVCodec tscc_decoder;
1941 d0a0bbd2 Mike Melanson
extern AVCodec ulti_decoder;
1942 d08d7142 Mike Melanson
extern AVCodec qdraw_decoder;
1943 ab711b3c Mike Melanson
extern AVCodec xl_decoder;
1944 acfd8f0f Mike Melanson
extern AVCodec qpeg_decoder;
1945 de6d9b64 Fabrice Bellard
1946 a96b68b7 Fabrice Bellard
/* pcm codecs */
1947
#define PCM_CODEC(id, name) \
1948
extern AVCodec name ## _decoder; \
1949 f11d3f23 Michael Niedermayer
extern AVCodec name ## _encoder
1950 a96b68b7 Fabrice Bellard
1951
PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
1952
PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
1953
PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
1954
PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
1955
PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
1956
PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
1957
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
1958
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
1959
1960 0147f198 François Revol
/* adpcm codecs */
1961
1962
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
1963
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
1964 9937e686 Mike Melanson
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
1965
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
1966 2fdf638b Mike Melanson
PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
1967 7d8379f2 Mike Melanson
PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
1968 0147f198 François Revol
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
1969 4b465299 Michael Niedermayer
PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
1970 fc384777 Mike Melanson
PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
1971
PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
1972 7d8379f2 Mike Melanson
PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
1973 e5966052 Roman Shaposhnik
PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
1974 b3bfb299 Mike Melanson
PCM_CODEC(CODEC_ID_ADPCM_CT, adpcm_ct);
1975 0147f198 François Revol
1976 a96b68b7 Fabrice Bellard
#undef PCM_CODEC
1977
1978
/* dummy raw video codec */
1979 63167088 Roman Shaposhnik
extern AVCodec rawvideo_encoder;
1980
extern AVCodec rawvideo_decoder;
1981 de6d9b64 Fabrice Bellard
1982
/* the following codecs use external GPL libs */
1983
extern AVCodec ac3_decoder;
1984 23c99253 Michael Niedermayer
extern AVCodec dts_decoder;
1985 de6d9b64 Fabrice Bellard
1986
/* resample.c */
1987
1988
struct ReSampleContext;
1989 aaaf1635 Michael Niedermayer
struct AVResampleContext;
1990 de6d9b64 Fabrice Bellard
1991
typedef struct ReSampleContext ReSampleContext;
1992
1993
ReSampleContext *audio_resample_init(int output_channels, int input_channels, 
1994
                                     int output_rate, int input_rate);
1995
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
1996
void audio_resample_close(ReSampleContext *s);
1997
1998 6e225de2 Michael Niedermayer
struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
1999 aaaf1635 Michael Niedermayer
int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
2000 2d48eddd Michael Niedermayer
void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
2001 d88443ae William Juwono
void av_resample_close(struct AVResampleContext *c);
2002 aaaf1635 Michael Niedermayer
2003 de6d9b64 Fabrice Bellard
/* YUV420 format is assumed ! */
2004
2005
struct ImgReSampleContext;
2006
2007
typedef struct ImgReSampleContext ImgReSampleContext;
2008
2009
ImgReSampleContext *img_resample_init(int output_width, int output_height,
2010
                                      int input_width, int input_height);
2011 ab6d194a Michael Niedermayer
2012
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
2013
                                      int iwidth, int iheight,
2014
                                      int topBand, int bottomBand,
2015 1ff93ffc Todd Kirby
                                      int leftBand, int rightBand,
2016
                                      int padtop, int padbottom,
2017
                                      int padleft, int padright);
2018
2019 ab6d194a Michael Niedermayer
2020 de6d9b64 Fabrice Bellard
void img_resample(ImgReSampleContext *s, 
2021 da64ecc3 Drew Hess
                  AVPicture *output, const AVPicture *input);
2022 de6d9b64 Fabrice Bellard
2023
void img_resample_close(ImgReSampleContext *s);
2024
2025 75917b88 Drew Hess
/**
2026
 * Allocate memory for a picture.  Call avpicture_free to free it.
2027
 *
2028
 * @param picture the picture to be filled in.
2029
 * @param pix_fmt the format of the picture.
2030
 * @param width the width of the picture.
2031
 * @param height the height of the picture.
2032
 * @return 0 if successful, -1 if not.
2033
 */
2034
int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
2035
2036
/* Free a picture previously allocated by avpicture_alloc. */
2037
void avpicture_free(AVPicture *picture);
2038
2039 0c1a9eda Zdenek Kabelac
int avpicture_fill(AVPicture *picture, uint8_t *ptr,
2040 2d1a4094 Fabrice Bellard
                   int pix_fmt, int width, int height);
2041 da64ecc3 Drew Hess
int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
2042 63167088 Roman Shaposhnik
                     unsigned char *dest, int dest_size);
2043 219b06c6 Fabrice Bellard
int avpicture_get_size(int pix_fmt, int width, int height);
2044 dab64ebc Fabrice Bellard
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
2045
const char *avcodec_get_pix_fmt_name(int pix_fmt);
2046 21adafec Michael Niedermayer
void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
2047 63167088 Roman Shaposhnik
enum PixelFormat avcodec_get_pix_fmt(const char* name);
2048 d07730dd Michael Niedermayer
unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat p);
2049 219b06c6 Fabrice Bellard
2050 fab21997 Fabrice Bellard
#define FF_LOSS_RESOLUTION  0x0001 /* loss due to resolution change */
2051
#define FF_LOSS_DEPTH       0x0002 /* loss due to color depth change */
2052
#define FF_LOSS_COLORSPACE  0x0004 /* loss due to color space conversion */
2053
#define FF_LOSS_ALPHA       0x0008 /* loss of alpha bits */
2054
#define FF_LOSS_COLORQUANT  0x0010 /* loss due to color quantization */
2055
#define FF_LOSS_CHROMA      0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
2056
2057
int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
2058
                             int has_alpha);
2059
int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
2060
                              int has_alpha, int *loss_ptr);
2061
2062 0469baf1 Fabrice Bellard
#define FF_ALPHA_TRANSP       0x0001 /* image has some totally transparent pixels */
2063
#define FF_ALPHA_SEMI_TRANSP  0x0002 /* image has some transparent pixels */
2064 da64ecc3 Drew Hess
int img_get_alpha_info(const AVPicture *src,
2065
                       int pix_fmt, int width, int height);
2066 0469baf1 Fabrice Bellard
2067 219b06c6 Fabrice Bellard
/* convert among pixel formats */
2068
int img_convert(AVPicture *dst, int dst_pix_fmt,
2069 da64ecc3 Drew Hess
                const AVPicture *src, int pix_fmt, 
2070 219b06c6 Fabrice Bellard
                int width, int height);
2071
2072
/* deinterlace a picture */
2073 da64ecc3 Drew Hess
int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
2074 de6d9b64 Fabrice Bellard
                          int pix_fmt, int width, int height);
2075
2076
/* external high level API */
2077
2078
extern AVCodec *first_avcodec;
2079
2080 156e5023 Nick Kurshev
/* returns LIBAVCODEC_VERSION_INT constant */
2081 51a49663 Fabrice Bellard
unsigned avcodec_version(void);
2082 8bceb6af Nick Kurshev
/* returns LIBAVCODEC_BUILD constant */
2083 51a49663 Fabrice Bellard
unsigned avcodec_build(void);
2084 de6d9b64 Fabrice Bellard
void avcodec_init(void);
2085
2086
void register_avcodec(AVCodec *format);
2087
AVCodec *avcodec_find_encoder(enum CodecID id);
2088 98f3b098 Arpi
AVCodec *avcodec_find_encoder_by_name(const char *name);
2089 de6d9b64 Fabrice Bellard
AVCodec *avcodec_find_decoder(enum CodecID id);
2090
AVCodec *avcodec_find_decoder_by_name(const char *name);
2091
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
2092
2093 1e491e29 Michael Niedermayer
void avcodec_get_context_defaults(AVCodecContext *s);
2094 7ffbb60e Falk Hüffner
AVCodecContext *avcodec_alloc_context(void);
2095 7906085f Falk Hüffner
void avcodec_get_frame_defaults(AVFrame *pic);
2096 492cd3a9 Michael Niedermayer
AVFrame *avcodec_alloc_frame(void);
2097 1e491e29 Michael Niedermayer
2098 492cd3a9 Michael Niedermayer
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
2099
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
2100 3a569751 Michael Niedermayer
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
2101
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
2102
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
2103 1e491e29 Michael Niedermayer
2104 5a815088 Michael Niedermayer
int avcodec_thread_init(AVCodecContext *s, int thread_count);
2105
void avcodec_thread_free(AVCodecContext *s);
2106
int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2107 3a569751 Michael Niedermayer
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2108 9c3d33d6 Michael Niedermayer
//FIXME func typedef
2109
2110 7a06ff14 Michael Niedermayer
/**
2111
 * opens / inits the AVCodecContext.
2112
 * not thread save!
2113
 */
2114 de6d9b64 Fabrice Bellard
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
2115 7a06ff14 Michael Niedermayer
2116 0c1a9eda Zdenek Kabelac
int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples, 
2117 de6d9b64 Fabrice Bellard
                         int *frame_size_ptr,
2118 0c1a9eda Zdenek Kabelac
                         uint8_t *buf, int buf_size);
2119 492cd3a9 Michael Niedermayer
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture, 
2120 de6d9b64 Fabrice Bellard
                         int *got_picture_ptr,
2121 0c1a9eda Zdenek Kabelac
                         uint8_t *buf, int buf_size);
2122
int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata, 
2123 917e06c8 Fabrice Bellard
                        int *data_size_ptr,
2124 0c1a9eda Zdenek Kabelac
                        uint8_t *buf, int buf_size);
2125
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
2126 de6d9b64 Fabrice Bellard
                         const short *samples);
2127 0c1a9eda Zdenek Kabelac
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
2128 492cd3a9 Michael Niedermayer
                         const AVFrame *pict);
2129 de6d9b64 Fabrice Bellard
2130
int avcodec_close(AVCodecContext *avctx);
2131
2132
void avcodec_register_all(void);
2133 a96b68b7 Fabrice Bellard
2134 1c2a8c7f Michael Niedermayer
void avcodec_flush_buffers(AVCodecContext *avctx);
2135
2136 14bea432 Michael Niedermayer
/* misc usefull functions */
2137 d8085ea7 Michael Niedermayer
2138
/**
2139
 * returns a single letter to describe the picture type
2140
 */
2141
char av_get_pict_type_char(int pict_type);
2142
2143 14bea432 Michael Niedermayer
/**
2144
 * reduce a fraction.
2145
 * this is usefull for framerate calculations
2146
 * @param max the maximum allowed for dst_nom & dst_den
2147
 * @return 1 if exact, 0 otherwise
2148
 */
2149
int av_reduce(int *dst_nom, int *dst_den, int64_t nom, int64_t den, int64_t max);
2150
2151
/**
2152 1f018225 Michael Niedermayer
 * rescale a 64bit integer with rounding to nearest.
2153 14bea432 Michael Niedermayer
 * a simple a*b/c isnt possible as it can overflow
2154
 */
2155 4c263142 Michael Niedermayer
int64_t av_rescale(int64_t a, int64_t b, int64_t c);
2156 628d601b Zdenek Kabelac
2157 1f018225 Michael Niedermayer
/**
2158
 * rescale a 64bit integer with specified rounding.
2159
 * a simple a*b/c isnt possible as it can overflow
2160
 */
2161
int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding);
2162 628d601b Zdenek Kabelac
2163 8424cf50 Fabrice Bellard
/* frame parsing */
2164
typedef struct AVCodecParserContext {
2165
    void *priv_data;
2166
    struct AVCodecParser *parser;
2167
    int64_t frame_offset; /* offset of the current frame */
2168
    int64_t cur_offset; /* current offset 
2169
                           (incremented by each av_parser_parse()) */
2170
    int64_t last_frame_offset; /* offset of the last frame */
2171
    /* video info */
2172
    int pict_type; /* XXX: put it back in AVCodecContext */
2173
    int repeat_pict; /* XXX: put it back in AVCodecContext */
2174 b84f2a35 Fabrice Bellard
    int64_t pts;     /* pts of the current frame */
2175
    int64_t dts;     /* dts of the current frame */
2176
2177
    /* private data */
2178
    int64_t last_pts;
2179
    int64_t last_dts;
2180 a62aecce Michael Niedermayer
    int fetch_timestamp;
2181 b84f2a35 Fabrice Bellard
2182
#define AV_PARSER_PTS_NB 4
2183
    int cur_frame_start_index;
2184
    int64_t cur_frame_offset[AV_PARSER_PTS_NB];
2185
    int64_t cur_frame_pts[AV_PARSER_PTS_NB];
2186
    int64_t cur_frame_dts[AV_PARSER_PTS_NB];
2187 8424cf50 Fabrice Bellard
} AVCodecParserContext;
2188
2189
typedef struct AVCodecParser {
2190 99f06236 Michael Niedermayer
    int codec_ids[5]; /* several codec IDs are permitted */
2191 8424cf50 Fabrice Bellard
    int priv_data_size;
2192
    int (*parser_init)(AVCodecParserContext *s);
2193
    int (*parser_parse)(AVCodecParserContext *s, 
2194
                        AVCodecContext *avctx,
2195
                        uint8_t **poutbuf, int *poutbuf_size, 
2196
                        const uint8_t *buf, int buf_size);
2197
    void (*parser_close)(AVCodecParserContext *s);
2198
    struct AVCodecParser *next;
2199
} AVCodecParser;
2200
2201
extern AVCodecParser *av_first_parser;
2202
2203
void av_register_codec_parser(AVCodecParser *parser);
2204
AVCodecParserContext *av_parser_init(int codec_id);
2205
int av_parser_parse(AVCodecParserContext *s, 
2206
                    AVCodecContext *avctx,
2207
                    uint8_t **poutbuf, int *poutbuf_size, 
2208 b84f2a35 Fabrice Bellard
                    const uint8_t *buf, int buf_size,
2209
                    int64_t pts, int64_t dts);
2210 8424cf50 Fabrice Bellard
void av_parser_close(AVCodecParserContext *s);
2211
2212
extern AVCodecParser mpegvideo_parser;
2213
extern AVCodecParser mpeg4video_parser;
2214 c6148de2 Michael Niedermayer
extern AVCodecParser h261_parser;
2215 8424cf50 Fabrice Bellard
extern AVCodecParser h263_parser;
2216
extern AVCodecParser h264_parser;
2217 8e6325b9 Michael Niedermayer
extern AVCodecParser mjpeg_parser;
2218 99f06236 Michael Niedermayer
extern AVCodecParser pnm_parser;
2219 8424cf50 Fabrice Bellard
extern AVCodecParser mpegaudio_parser;
2220
extern AVCodecParser ac3_parser;
2221
2222 544eb99c Fabrice Bellard
/* memory */
2223 e4eadb4b Michael Niedermayer
void *av_malloc(unsigned int size);
2224 18f77016 Zdenek Kabelac
void *av_mallocz(unsigned int size);
2225 8e1e6f31 Fabrice Bellard
void *av_realloc(void *ptr, unsigned int size);
2226 544eb99c Fabrice Bellard
void av_free(void *ptr);
2227 8e1e6f31 Fabrice Bellard
char *av_strdup(const char *s);
2228 81c5f887 Michael Niedermayer
void av_freep(void *ptr);
2229 97d96aaa Zdenek Kabelac
void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
2230 855ea723 Zdenek Kabelac
/* for static data only */
2231
/* call av_free_static to release all staticaly allocated tables */
2232 628d601b Zdenek Kabelac
void av_free_static(void);
2233 8d1f2ba5 Michael Niedermayer
void *av_mallocz_static(unsigned int size);
2234 073c2593 Burkhard Plaum
void *av_realloc_static(void *ptr, unsigned int size);
2235 544eb99c Fabrice Bellard
2236 fc384777 Mike Melanson
/* add by bero : in adx.c */
2237
int is_adx(const unsigned char *buf,size_t bufsize);
2238
2239 e1c2a5a0 Roberto Togni
void img_copy(AVPicture *dst, const AVPicture *src,
2240
              int pix_fmt, int width, int height);
2241
2242 9b879566 Michel Bardiaux
/* av_log API */
2243
2244
#include <stdarg.h>
2245
2246 d8019eb5 Allen Day
#define AV_LOG_QUIET -1
2247 9b879566 Michel Bardiaux
#define AV_LOG_ERROR 0
2248
#define AV_LOG_INFO 1
2249
#define AV_LOG_DEBUG 2
2250
2251 f4bd8cf0 Michael Niedermayer
#ifdef __GNUC__
2252 bc874dae Michel Bardiaux
extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
2253 f4bd8cf0 Michael Niedermayer
#else
2254
extern void av_log(void*, int level, const char *fmt, ...);
2255
#endif
2256
2257 bc874dae Michel Bardiaux
extern void av_vlog(void*, int level, const char *fmt, va_list);
2258 9b879566 Michel Bardiaux
extern int av_log_get_level(void);
2259
extern void av_log_set_level(int);
2260 bc874dae Michel Bardiaux
extern void av_log_set_callback(void (*)(void*, int, const char*, va_list));
2261 9b879566 Michel Bardiaux
2262 3a278992 Mike Melanson
/* endian macros */
2263 e96682e6 Michael Niedermayer
#if !defined(BE_16) || !defined(BE_32) || !defined(LE_16) || !defined(LE_32)
2264 3a278992 Mike Melanson
#define BE_16(x)  ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
2265
#define BE_32(x)  ((((uint8_t*)(x))[0] << 24) | \
2266
                   (((uint8_t*)(x))[1] << 16) | \
2267
                   (((uint8_t*)(x))[2] << 8) | \
2268
                    ((uint8_t*)(x))[3])
2269
#define LE_16(x)  ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
2270
#define LE_32(x)  ((((uint8_t*)(x))[3] << 24) | \
2271
                   (((uint8_t*)(x))[2] << 16) | \
2272
                   (((uint8_t*)(x))[1] << 8) | \
2273
                    ((uint8_t*)(x))[0])
2274 e96682e6 Michael Niedermayer
#endif
2275 3a278992 Mike Melanson
2276 02d697aa Zdenek Kabelac
#ifdef __cplusplus
2277
}
2278
#endif
2279
2280 a96b68b7 Fabrice Bellard
#endif /* AVCODEC_H */