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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       4733
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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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    /* 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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     */
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    int16_t position[3][2];
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}AVPanScan;
382
383 492cd3a9 Michael Niedermayer
#define FF_COMMON_FRAME \
384 b536d0aa Michael Niedermayer
    /**\
385
     * pointer to the picture planes.\
386
     * this might be different from the first allocated byte\
387
     * - encoding: \
388
     * - decoding: \
389
     */\
390 1e491e29 Michael Niedermayer
    uint8_t *data[4];\
391
    int linesize[4];\
392
    /**\
393 32db2b1d Michael Niedermayer
     * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
394 1e491e29 Michael Niedermayer
     * this isnt used by lavc unless the default get/release_buffer() is used\
395 64863965 Michael Niedermayer
     * - encoding: \
396
     * - decoding: \
397 1e491e29 Michael Niedermayer
     */\
398
    uint8_t *base[4];\
399
    /**\
400
     * 1 -> keyframe, 0-> not\
401 64863965 Michael Niedermayer
     * - encoding: set by lavc\
402
     * - decoding: set by lavc\
403 1e491e29 Michael Niedermayer
     */\
404
    int key_frame;\
405
\
406
    /**\
407 0da71265 Michael Niedermayer
     * picture type of the frame, see ?_TYPE below.\
408 64863965 Michael Niedermayer
     * - encoding: set by lavc for coded_picture (and set by user for input)\
409
     * - decoding: set by lavc\
410 1e491e29 Michael Niedermayer
     */\
411
    int pict_type;\
412
\
413
    /**\
414 9740beff Michael Niedermayer
     * presentation timestamp in AV_TIME_BASE (=micro seconds currently) (time when frame should be shown to user)\
415
     * if AV_NOPTS_VALUE then the frame_rate will be used as reference\
416 64863965 Michael Niedermayer
     * - encoding: MUST be set by user\
417
     * - decoding: set by lavc\
418 1e491e29 Michael Niedermayer
     */\
419 be6784dc Richard Hodges
    int64_t pts;\
420 1e491e29 Michael Niedermayer
\
421
    /**\
422
     * picture number in bitstream order.\
423 64863965 Michael Niedermayer
     * - encoding: set by\
424
     * - decoding: set by lavc\
425 1e491e29 Michael Niedermayer
     */\
426
    int coded_picture_number;\
427
    /**\
428
     * picture number in display order.\
429 64863965 Michael Niedermayer
     * - encoding: set by\
430
     * - decoding: set by lavc\
431 1e491e29 Michael Niedermayer
     */\
432
    int display_picture_number;\
433
\
434
    /**\
435 158c7f05 Michael Niedermayer
     * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
436 64863965 Michael Niedermayer
     * - encoding: set by lavc for coded_picture (and set by user for input)\
437
     * - decoding: set by lavc\
438 1e491e29 Michael Niedermayer
     */\
439 158c7f05 Michael Niedermayer
    int quality; \
440 1e491e29 Michael Niedermayer
\
441
    /**\
442
     * buffer age (1->was last buffer and dint change, 2->..., ...).\
443 158c7f05 Michael Niedermayer
     * set to INT_MAX if the buffer has not been used yet \
444 64863965 Michael Niedermayer
     * - encoding: unused\
445
     * - decoding: MUST be set by get_buffer()\
446 1e491e29 Michael Niedermayer
     */\
447
    int age;\
448
\
449
    /**\
450
     * is this picture used as reference\
451 64863965 Michael Niedermayer
     * - encoding: unused\
452
     * - decoding: set by lavc (before get_buffer() call))\
453 1e491e29 Michael Niedermayer
     */\
454
    int reference;\
455
\
456
    /**\
457
     * QP table\
458 64863965 Michael Niedermayer
     * - encoding: unused\
459
     * - decoding: set by lavc\
460 1e491e29 Michael Niedermayer
     */\
461
    int8_t *qscale_table;\
462
    /**\
463
     * QP store stride\
464 64863965 Michael Niedermayer
     * - encoding: unused\
465
     * - decoding: set by lavc\
466 1e491e29 Michael Niedermayer
     */\
467
    int qstride;\
468
\
469
    /**\
470
     * mbskip_table[mb]>=1 if MB didnt change\
471
     * stride= mb_width = (width+15)>>4\
472 64863965 Michael Niedermayer
     * - encoding: unused\
473
     * - decoding: set by lavc\
474 1e491e29 Michael Niedermayer
     */\
475
    uint8_t *mbskip_table;\
476
\
477
    /**\
478 8d7ec294 Wolfgang Hesseler
     * Motion vector table\
479 a4d36c11 Michael Niedermayer
     * - encoding: set by user\
480 8d7ec294 Wolfgang Hesseler
     * - decoding: set by lavc\
481
     */\
482
    int16_t (*motion_val[2])[2];\
483
\
484
    /**\
485
     * Macroblock type table\
486
     * mb_type_base + mb_width + 2\
487 a4d36c11 Michael Niedermayer
     * - encoding: set by user\
488 8d7ec294 Wolfgang Hesseler
     * - decoding: set by lavc\
489
     */\
490
    uint32_t *mb_type;\
491
\
492
    /**\
493
     * Macroblock size: (0->16x16, 1->8x8, 2-> 4x4, 3-> 2x2)\
494
     * - encoding: unused\
495
     * - decoding: set by lavc\
496
     */\
497
    uint8_t motion_subsample_log2;\
498
\
499
    /**\
500 1e491e29 Michael Niedermayer
     * for some private data of the user\
501 64863965 Michael Niedermayer
     * - encoding: unused\
502
     * - decoding: set by user\
503 1e491e29 Michael Niedermayer
     */\
504
    void *opaque;\
505 140cb663 Michael Niedermayer
\
506
    /**\
507
     * error\
508 64863965 Michael Niedermayer
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
509
     * - decoding: unused\
510 140cb663 Michael Niedermayer
     */\
511
    uint64_t error[4];\
512 4e00e76b Michael Niedermayer
\
513
    /**\
514
     * type of the buffer (to keep track of who has to dealloc data[*])\
515 64863965 Michael Niedermayer
     * - encoding: set by the one who allocs it\
516
     * - decoding: set by the one who allocs it\
517 3db320ea Falk Hüffner
     * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
518 4e00e76b Michael Niedermayer
     */\
519
    int type;\
520 2ec23b6d Michael Niedermayer
    \
521
    /**\
522
     * when decoding, this signal how much the picture must be delayed.\
523
     * extra_delay = repeat_pict / (2*fps)\
524 64863965 Michael Niedermayer
     * - encoding: unused\
525
     * - decoding: set by lavc\
526 2ec23b6d Michael Niedermayer
     */\
527 0426af31 Michael Niedermayer
    int repeat_pict;\
528
    \
529
    /**\
530
     * \
531
     */\
532
    int qscale_type;\
533 2744ca9a Roman Shaposhnik
    \
534
    /**\
535
     * The content of the picture is interlaced.\
536
     * - encoding: set by user\
537
     * - decoding: set by lavc (default 0)\
538
     */\
539
    int interlaced_frame;\
540
    \
541
    /**\
542 9dad924e Michael Niedermayer
     * if the content is interlaced, is top field displayed first.\
543 2744ca9a Roman Shaposhnik
     * - encoding: set by user\
544 9dad924e Michael Niedermayer
     * - decoding: set by lavc\
545 2744ca9a Roman Shaposhnik
     */\
546 9dad924e Michael Niedermayer
    int top_field_first;\
547 fa384dcc Michael Niedermayer
    \
548
    /**\
549
     * Pan scan.\
550
     * - encoding: set by user\
551
     * - decoding: set by lavc\
552
     */\
553
    AVPanScan *pan_scan;\
554 2a2bbcb0 Mike Melanson
    \
555
    /**\
556
     * tell user application that palette has changed from previous frame.\
557
     * - encoding: ??? (no palette-enabled encoder yet)\
558
     * - decoding: set by lavc (default 0)\
559
     */\
560
    int palette_has_changed;\
561 074c4ca7 Roberto Togni
    \
562
    /**\
563
     * Codec suggestion on buffer type if != 0\
564
     * - encoding: unused\
565
     * - decoding: set by lavc (before get_buffer() call))\
566
     */\
567
    int buffer_hints;\
568 8289c6fa Wolfgang Hesseler
\
569
    /**\
570
     * DCT coeffitients\
571
     * - encoding: unused\
572
     * - decoding: set by lavc\
573
     */\
574
    short *dct_coeff;\
575 a4d36c11 Michael Niedermayer
\
576
    /**\
577
     * Motion referece frame index\
578
     * - encoding: set by user\
579
     * - decoding: set by lavc\
580
     */\
581
    int8_t *ref_index[2];
582 2ec23b6d Michael Niedermayer
583 0426af31 Michael Niedermayer
#define FF_QSCALE_TYPE_MPEG1        0
584
#define FF_QSCALE_TYPE_MPEG2        1
585 4e00e76b Michael Niedermayer
586
#define FF_BUFFER_TYPE_INTERNAL 1
587 9b56edf5 Michael Niedermayer
#define FF_BUFFER_TYPE_USER     2 ///< Direct rendering buffers (image is (de)allocated by user)
588 a4d36c11 Michael Niedermayer
#define FF_BUFFER_TYPE_SHARED   4 ///< buffer from somewher else, dont dealloc image (data/base), all other tables are not shared
589 9b56edf5 Michael Niedermayer
#define FF_BUFFER_TYPE_COPY     8 ///< just a (modified) copy of some other buffer, dont dealloc anything
590 4e00e76b Michael Niedermayer
591 1e491e29 Michael Niedermayer
592 140cb663 Michael Niedermayer
#define FF_I_TYPE 1 // Intra
593
#define FF_P_TYPE 2 // Predicted
594
#define FF_B_TYPE 3 // Bi-dir predicted
595
#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
596 0da71265 Michael Niedermayer
#define FF_SI_TYPE 5
597
#define FF_SP_TYPE 6
598 1e491e29 Michael Niedermayer
599 074c4ca7 Roberto Togni
#define FF_BUFFER_HINTS_VALID    0x01 // Buffer hints value is meaningful (if 0 ignore)
600
#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
601
#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
602
#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
603
604 0da71265 Michael Niedermayer
/**
605
 * Audio Video Frame.
606
 */
607 492cd3a9 Michael Niedermayer
typedef struct AVFrame {
608
    FF_COMMON_FRAME
609
} AVFrame;
610 1e491e29 Michael Niedermayer
611 14bea432 Michael Niedermayer
#define DEFAULT_FRAME_RATE_BASE 1001000
612 d33c949c Michael Niedermayer
613
/**
614 bc874dae Michel Bardiaux
 * Used by av_log
615
 */
616
typedef struct AVCLASS AVClass;
617
struct AVCLASS {
618
    const char* class_name;
619
    const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext
620
                                        or AVFormatContext, which begin with an AVClass.
621
                                        Needed because av_log is in libavcodec and has no visibility
622
                                        of AVIn/OutputFormat */
623
};
624
625
/**
626 d33c949c Michael Niedermayer
 * main external api structure.
627
 */
628 de6d9b64 Fabrice Bellard
typedef struct AVCodecContext {
629 b71901e6 Michael Niedermayer
    /**
630 bc874dae Michel Bardiaux
     * Info on struct for av_log
631
     * - set by avcodec_alloc_context
632
     */
633 43465395 Michael Niedermayer
    AVClass *av_class;
634 bc874dae Michel Bardiaux
    /**
635 64863965 Michael Niedermayer
     * the average bitrate.
636
     * - encoding: set by user. unused for constant quantizer encoding
637
     * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream 
638 b71901e6 Michael Niedermayer
     */
639 de6d9b64 Fabrice Bellard
    int bit_rate;
640 b71901e6 Michael Niedermayer
641
    /**
642 64863965 Michael Niedermayer
     * number of bits the bitstream is allowed to diverge from the reference.
643 b71901e6 Michael Niedermayer
     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
644 64863965 Michael Niedermayer
     * - encoding: set by user. unused for constant quantizer encoding
645
     * - decoding: unused
646 b71901e6 Michael Niedermayer
     */
647
    int bit_rate_tolerance; 
648
649
    /**
650 64863965 Michael Niedermayer
     * CODEC_FLAG_*.
651
     * - encoding: set by user.
652
     * - decoding: set by user.
653 b71901e6 Michael Niedermayer
     */
654 de6d9b64 Fabrice Bellard
    int flags;
655 b71901e6 Michael Niedermayer
656
    /**
657
     * some codecs needs additionnal format info. It is stored here
658 64863965 Michael Niedermayer
     * - encoding: set by user. 
659
     * - decoding: set by lavc. (FIXME is this ok?)
660 b71901e6 Michael Niedermayer
     */
661
    int sub_id;
662
663
    /**
664 64863965 Michael Niedermayer
     * motion estimation algorithm used for video coding.
665
     * - encoding: MUST be set by user.
666
     * - decoding: unused
667 b71901e6 Michael Niedermayer
     */
668
    int me_method;
669
670
    /**
671 64863965 Michael Niedermayer
     * some codecs need / can use extra-data like huffman tables.
672 b71901e6 Michael Niedermayer
     * mjpeg: huffman tables
673
     * rv10: additional flags
674 b704e742 Michael Niedermayer
     * mpeg4: global headers (they can be in the bitstream or here)
675 dffcdbb5 Michael Niedermayer
     * the allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
676
     * then extradata_size to avoid prolems if its read with the bitstream reader
677 64863965 Michael Niedermayer
     * - encoding: set/allocated/freed by lavc.
678
     * - decoding: set/allocated/freed by user.
679 b71901e6 Michael Niedermayer
     */
680 e84c31dc Arpi
    void *extradata;
681
    int extradata_size;
682
    
683 de6d9b64 Fabrice Bellard
    /* video only */
684 b71901e6 Michael Niedermayer
    /**
685 14bea432 Michael Niedermayer
     * frames per sec multiplied by frame_rate_base.
686 b71901e6 Michael Niedermayer
     * for variable fps this is the precission, so if the timestamps 
687 14bea432 Michael Niedermayer
     * can be specified in msec precssion then this is 1000*frame_rate_base
688 64863965 Michael Niedermayer
     * - encoding: MUST be set by user
689
     * - decoding: set by lavc. 0 or the frame_rate if available
690 b71901e6 Michael Niedermayer
     */
691
    int frame_rate;
692 14bea432 Michael Niedermayer
    
693
    /**
694 21adafec Michael Niedermayer
     * picture width / height.
695 64863965 Michael Niedermayer
     * - encoding: MUST be set by user. 
696 21adafec Michael Niedermayer
     * - decoding: set by lavc.
697
     * Note, for compatibility its possible to set this instead of 
698
     * coded_width/height before decoding
699 b71901e6 Michael Niedermayer
     */
700 de6d9b64 Fabrice Bellard
    int width, height;
701 b71901e6 Michael Niedermayer
    
702 e769f053 Alex Beregszaszi
#define FF_ASPECT_EXTENDED 15
703 b71901e6 Michael Niedermayer
704
    /**
705 64863965 Michael Niedermayer
     * the number of pictures in a group of pitures, or 0 for intra_only.
706
     * - encoding: set by user.
707
     * - decoding: unused
708 b71901e6 Michael Niedermayer
     */
709
    int gop_size;
710
711
    /**
712 64863965 Michael Niedermayer
     * pixel format, see PIX_FMT_xxx.
713 36b58e85 Roman Shaposhnik
     * - encoding: FIXME: used by ffmpeg to decide whether an pix_fmt
714
     *                    conversion is in order. This only works for
715
     *                    codecs with one supported pix_fmt, we should
716
     *                    do something for a generic case as well.
717 64863965 Michael Niedermayer
     * - decoding: set by lavc.
718 b71901e6 Michael Niedermayer
     */
719 e4eadb4b Michael Niedermayer
    enum PixelFormat pix_fmt;
720 bdfcbbed Max Krasnyansky
 
721
    /**
722
     * Frame rate emulation. If not zero lower layer (i.e. format handler) 
723
     * has to read frames at native frame rate.
724
     * - encoding: set by user.
725
     * - decoding: unused.
726
     */
727
    int rate_emu;
728
       
729 b71901e6 Michael Niedermayer
    /**
730
     * if non NULL, 'draw_horiz_band' is called by the libavcodec
731
     * decoder to draw an horizontal band. It improve cache usage. Not
732
     * all codecs can do that. You must check the codec capabilities
733
     * before
734 64863965 Michael Niedermayer
     * - encoding: unused
735
     * - decoding: set by user.
736 3bb07d61 Michael Niedermayer
     * @param height the height of the slice
737
     * @param y the y position of the slice
738
     * @param type 1->top field, 2->bottom field, 3->frame
739
     * @param offset offset into the AVFrame.data from which the slice should be read
740 b71901e6 Michael Niedermayer
     */
741 bf89e6b1 Fabrice Bellard
    void (*draw_horiz_band)(struct AVCodecContext *s,
742 da64ecc3 Drew Hess
                            const AVFrame *src, int offset[4],
743 3bb07d61 Michael Niedermayer
                            int y, int type, int height);
744 bf89e6b1 Fabrice Bellard
745 de6d9b64 Fabrice Bellard
    /* audio only */
746 64863965 Michael Niedermayer
    int sample_rate; ///< samples per sec 
747 de6d9b64 Fabrice Bellard
    int channels;
748 64863965 Michael Niedermayer
    int sample_fmt;  ///< sample format, currenly unused 
749 de6d9b64 Fabrice Bellard
750
    /* the following data should not be initialized */
751 64863965 Michael Niedermayer
    int frame_size;     ///< in samples, initialized when calling 'init' 
752
    int frame_number;   ///< audio or video frame number 
753
    int real_pict_num;  ///< returns the real picture number of previous encoded frame 
754 1e491e29 Michael Niedermayer
    
755 b71901e6 Michael Niedermayer
    /**
756
     * number of frames the decoded output will be delayed relative to 
757 64863965 Michael Niedermayer
     * the encoded input.
758
     * - encoding: set by lavc.
759
     * - decoding: unused
760 b71901e6 Michael Niedermayer
     */
761
    int delay;
762 1ff662cc Michael Niedermayer
    
763 64863965 Michael Niedermayer
    /* - encoding parameters */
764
    float qcompress;  ///< amount of qscale change between easy & hard scenes (0.0-1.0)
765
    float qblur;      ///< amount of qscale smoothing over time (0.0-1.0) 
766 b71901e6 Michael Niedermayer
    
767
    /**
768 64863965 Michael Niedermayer
     * minimum quantizer.
769
     * - encoding: set by user.
770
     * - decoding: unused
771 b71901e6 Michael Niedermayer
     */
772
    int qmin;
773
774
    /**
775 64863965 Michael Niedermayer
     * maximum quantizer.
776
     * - encoding: set by user.
777
     * - decoding: unused
778 b71901e6 Michael Niedermayer
     */
779
    int qmax;
780
781
    /**
782 64863965 Michael Niedermayer
     * maximum quantizer difference etween frames.
783
     * - encoding: set by user.
784
     * - decoding: unused
785 b71901e6 Michael Niedermayer
     */
786
    int max_qdiff;
787
788
    /**
789 64863965 Michael Niedermayer
     * maximum number of b frames between non b frames.
790 b71901e6 Michael Niedermayer
     * note: the output will be delayed by max_b_frames+1 relative to the input
791 64863965 Michael Niedermayer
     * - encoding: set by user.
792
     * - decoding: unused
793 b71901e6 Michael Niedermayer
     */
794
    int max_b_frames;
795
796
    /**
797 64863965 Michael Niedermayer
     * qscale factor between ip and b frames.
798
     * - encoding: set by user.
799
     * - decoding: unused
800 b71901e6 Michael Niedermayer
     */
801
    float b_quant_factor;
802
    
803
    /** obsolete FIXME remove */
804
    int rc_strategy;
805 8b4c7dbc Michael Niedermayer
    int b_frame_strategy;
806 9dbcbd92 Michael Niedermayer
807 b71901e6 Michael Niedermayer
    /**
808 64863965 Michael Niedermayer
     * hurry up amount.
809
     * - encoding: unused
810
     * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
811 b71901e6 Michael Niedermayer
     */
812
    int hurry_up;
813 2417652e Michael Niedermayer
    
814 de6d9b64 Fabrice Bellard
    struct AVCodec *codec;
815 b71901e6 Michael Niedermayer
    
816 de6d9b64 Fabrice Bellard
    void *priv_data;
817
818 ba58dabc Michael Niedermayer
    /* unused, FIXME remove*/
819
    int rtp_mode;
820 644d98a4 Juanjo
    
821
    int rtp_payload_size;   /* The size of the RTP payload, the coder will  */
822
                            /* do it's best to deliver a chunk with size    */
823
                            /* below rtp_payload_size, the chunk will start */
824
                            /* with a start code on some codecs like H.263  */
825
                            /* This doesn't take account of any particular  */
826
                            /* headers inside the transmited RTP payload    */
827 81401c1f Juanjo
828
    
829
    /* The RTP callcack: This function is called  */
830
    /* every time the encoder as a packet to send */
831
    /* Depends on the encoder if the data starts  */
832
    /* with a Start Code (it should) H.263 does   */
833 a7fcb3ea Chris Flerackers
    void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int packet_number); 
834 81401c1f Juanjo
835 098eefe1 Michael Niedermayer
    /* statistics, used for 2-pass encoding */
836
    int mv_bits;
837
    int header_bits;
838
    int i_tex_bits;
839
    int p_tex_bits;
840
    int i_count;
841
    int p_count;
842
    int skip_count;
843 b71901e6 Michael Niedermayer
    int misc_bits;
844
    
845
    /**
846 64863965 Michael Niedermayer
     * number of bits used for the previously encoded frame.
847
     * - encoding: set by lavc
848 7004ffb3 Michael Niedermayer
     * - decoding: unused
849 b71901e6 Michael Niedermayer
     */
850 098eefe1 Michael Niedermayer
    int frame_bits;
851 7004ffb3 Michael Niedermayer
852 b71901e6 Michael Niedermayer
    /**
853 64863965 Michael Niedermayer
     * private data of the user, can be used to carry app specific stuff.
854
     * - encoding: set by user
855
     * - decoding: set by user
856 b71901e6 Michael Niedermayer
     */
857
    void *opaque;
858
859 de6d9b64 Fabrice Bellard
    char codec_name[32];
860 4a663d80 Philip Gladstone
    enum CodecType codec_type; /* see CODEC_TYPE_xxx */
861
    enum CodecID codec_id; /* see CODEC_ID_xxx */
862 7004ffb3 Michael Niedermayer
    
863
    /**
864
     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
865
     * this is used to workaround some encoder bugs
866 bd5a6020 Michael Niedermayer
     * - encoding: set by user, if not then the default based on codec_id will be used
867 7004ffb3 Michael Niedermayer
     * - decoding: set by user, will be converted to upper case by lavc during init
868
     */
869
    unsigned int codec_tag;
870 92ba5ffb Michael Niedermayer
    
871 b71901e6 Michael Niedermayer
    /**
872 64863965 Michael Niedermayer
     * workaround bugs in encoders which sometimes cannot be detected automatically.
873
     * - encoding: unused
874
     * - decoding: set by user
875 b71901e6 Michael Niedermayer
     */
876
    int workaround_bugs;
877 64863965 Michael Niedermayer
#define FF_BUG_AUTODETECT       1  ///< autodetection
878 4d2858de Michael Niedermayer
#define FF_BUG_OLD_MSMPEG4      2
879
#define FF_BUG_XVID_ILACE       4
880
#define FF_BUG_UMP4             8
881
#define FF_BUG_NO_PADDING       16
882 3116cb14 Michael Niedermayer
#define FF_BUG_AMV              32
883 ac0c6638 Michael Niedermayer
#define FF_BUG_AC_VLC           0  ///< will be removed, libavcodec can now handle these non compliant files by default
884 03e93d35 Michael Niedermayer
#define FF_BUG_QPEL_CHROMA      64
885 db794953 Michael Niedermayer
#define FF_BUG_STD_QPEL         128
886 36df8805 Michael Niedermayer
#define FF_BUG_QPEL_CHROMA2     256
887 c40c3482 Michael Niedermayer
#define FF_BUG_DIRECT_BLOCKSIZE 512
888 1c6dcb0f Michael Niedermayer
#define FF_BUG_EDGE             1024
889 b44bdf7e Michael Niedermayer
#define FF_BUG_HPEL_CHROMA      2048
890 4ccde216 Michael Niedermayer
#define FF_BUG_DC_CLIP          4096
891 4d2858de Michael Niedermayer
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
892
        
893 b71901e6 Michael Niedermayer
    /**
894 64863965 Michael Niedermayer
     * luma single coeff elimination threshold.
895
     * - encoding: set by user
896
     * - decoding: unused
897 b71901e6 Michael Niedermayer
     */
898 1f6b6e50 Michael Niedermayer
    int luma_elim_threshold;
899 b71901e6 Michael Niedermayer
    
900
    /**
901 64863965 Michael Niedermayer
     * chroma single coeff elimination threshold.
902
     * - encoding: set by user
903
     * - decoding: unused
904 b71901e6 Michael Niedermayer
     */
905 1f6b6e50 Michael Niedermayer
    int chroma_elim_threshold;
906 b71901e6 Michael Niedermayer
    
907
    /**
908 64863965 Michael Niedermayer
     * strictly follow the std (MPEG4, ...).
909
     * - encoding: set by user
910
     * - decoding: unused
911 b71901e6 Michael Niedermayer
     */
912
    int strict_std_compliance;
913
    
914
    /**
915 64863965 Michael Niedermayer
     * qscale offset between ip and b frames.
916 b3a391e8 Michael Niedermayer
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
917
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
918 64863965 Michael Niedermayer
     * - encoding: set by user.
919
     * - decoding: unused
920 b71901e6 Michael Niedermayer
     */
921
    float b_quant_offset;
922
    
923
    /**
924 ce3bcaed Michael Niedermayer
     * error resilience higher values will detect more errors but may missdetect
925 64863965 Michael Niedermayer
     * some more or less valid parts as errors.
926
     * - encoding: unused
927
     * - decoding: set by user
928 b71901e6 Michael Niedermayer
     */
929 1f6b6e50 Michael Niedermayer
    int error_resilience;
930 ce3bcaed Michael Niedermayer
#define FF_ER_CAREFULL        1
931
#define FF_ER_COMPLIANT       2
932
#define FF_ER_AGGRESSIVE      3
933
#define FF_ER_VERY_AGGRESSIVE 4
934 ae72cda6 Nick Kurshev
    
935 6b72ac63 Michael Niedermayer
    /**
936 1e491e29 Michael Niedermayer
     * called at the beginning of each frame to get a buffer for it.
937
     * if pic.reference is set then the frame will be read later by lavc
938 2b5296d2 Michael Niedermayer
     * avcodec_align_dimensions() should be used to find the required width and
939
     * height, as they normally need to be rounded up to the next multiple of 16
940 64863965 Michael Niedermayer
     * - encoding: unused
941
     * - decoding: set by lavc, user can override
942 b71901e6 Michael Niedermayer
     */
943 492cd3a9 Michael Niedermayer
    int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
944 b71901e6 Michael Niedermayer
    
945
    /**
946 1e491e29 Michael Niedermayer
     * called to release buffers which where allocated with get_buffer.
947
     * a released buffer can be reused in get_buffer()
948
     * pic.data[*] must be set to NULL
949 64863965 Michael Niedermayer
     * - encoding: unused
950
     * - decoding: set by lavc, user can override
951 b71901e6 Michael Niedermayer
     */
952 492cd3a9 Michael Niedermayer
    void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
953 0fd90455 Michael Niedermayer
954 b71901e6 Michael Niedermayer
    /**
955 e6a2ac34 Michael Niedermayer
     * if 1 the stream has a 1 frame delay during decoding.
956
     * - encoding: set by lavc
957 64863965 Michael Niedermayer
     * - decoding: set by lavc
958 b71901e6 Michael Niedermayer
     */
959
    int has_b_frames;
960
    
961 64863965 Michael Niedermayer
    int block_align; ///< used by some WAV based audio codecs
962 ce980a95 Michael Niedermayer
    
963 64863965 Michael Niedermayer
    int parse_only; /* - decoding only: if true, only parsing is done
964 917e06c8 Fabrice Bellard
                       (function avcodec_parse_frame()). The frame
965
                       data is returned. Only MPEG codecs support this now. */
966 ce980a95 Michael Niedermayer
    
967 b71901e6 Michael Niedermayer
    /**
968 e4eadb4b Michael Niedermayer
     * 0-> h263 quant 1-> mpeg quant.
969 64863965 Michael Niedermayer
     * - encoding: set by user.
970
     * - decoding: unused
971 b71901e6 Michael Niedermayer
     */
972
    int mpeg_quant;
973 ce980a95 Michael Niedermayer
    
974 b71901e6 Michael Niedermayer
    /**
975 64863965 Michael Niedermayer
     * pass1 encoding statistics output buffer.
976
     * - encoding: set by lavc
977
     * - decoding: unused
978 b71901e6 Michael Niedermayer
     */
979 64863965 Michael Niedermayer
    char *stats_out;
980 b71901e6 Michael Niedermayer
    
981
    /**
982
     * pass2 encoding statistics input buffer.
983
     * concatenated stuff from stats_out of pass1 should be placed here
984 64863965 Michael Niedermayer
     * - encoding: allocated/set/freed by user
985
     * - decoding: unused
986 b71901e6 Michael Niedermayer
     */
987
    char *stats_in;
988
    
989
    /**
990 64863965 Michael Niedermayer
     * ratecontrol qmin qmax limiting method.
991 b71901e6 Michael Niedermayer
     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
992 64863965 Michael Niedermayer
     * - encoding: set by user.
993
     * - decoding: unused
994 b71901e6 Michael Niedermayer
     */
995 ce980a95 Michael Niedermayer
    float rc_qsquish;
996 b71901e6 Michael Niedermayer
997 ce980a95 Michael Niedermayer
    float rc_qmod_amp;
998
    int rc_qmod_freq;
999 b71901e6 Michael Niedermayer
    
1000
    /**
1001 64863965 Michael Niedermayer
     * ratecontrol override, see RcOverride.
1002
     * - encoding: allocated/set/freed by user.
1003
     * - decoding: unused
1004 b71901e6 Michael Niedermayer
     */
1005 ce980a95 Michael Niedermayer
    RcOverride *rc_override;
1006
    int rc_override_count;
1007 b71901e6 Michael Niedermayer
    
1008
    /**
1009 64863965 Michael Niedermayer
     * rate control equation.
1010
     * - encoding: set by user
1011
     * - decoding: unused
1012 b71901e6 Michael Niedermayer
     */
1013 ce980a95 Michael Niedermayer
    char *rc_eq;
1014 b71901e6 Michael Niedermayer
    
1015
    /**
1016 64863965 Michael Niedermayer
     * maximum bitrate.
1017
     * - encoding: set by user.
1018
     * - decoding: unused
1019 b71901e6 Michael Niedermayer
     */
1020 ce980a95 Michael Niedermayer
    int rc_max_rate;
1021 b71901e6 Michael Niedermayer
    
1022
    /**
1023 64863965 Michael Niedermayer
     * minimum bitrate.
1024
     * - encoding: set by user.
1025
     * - decoding: unused
1026 b71901e6 Michael Niedermayer
     */
1027 ce980a95 Michael Niedermayer
    int rc_min_rate;
1028 b71901e6 Michael Niedermayer
    
1029
    /**
1030 64863965 Michael Niedermayer
     * decoder bitstream buffer size.
1031
     * - encoding: set by user.
1032
     * - decoding: unused
1033 b71901e6 Michael Niedermayer
     */
1034 ce980a95 Michael Niedermayer
    int rc_buffer_size;
1035
    float rc_buffer_aggressivity;
1036 b71901e6 Michael Niedermayer
1037
    /**
1038 64863965 Michael Niedermayer
     * qscale factor between p and i frames.
1039 a1e257b2 Michael Niedermayer
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1040
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
1041 64863965 Michael Niedermayer
     * - encoding: set by user.
1042
     * - decoding: unused
1043 b71901e6 Michael Niedermayer
     */
1044
    float i_quant_factor;
1045
    
1046
    /**
1047 64863965 Michael Niedermayer
     * qscale offset between p and i frames.
1048
     * - encoding: set by user.
1049
     * - decoding: unused
1050 b71901e6 Michael Niedermayer
     */
1051
    float i_quant_offset;
1052
    
1053
    /**
1054 64863965 Michael Niedermayer
     * initial complexity for pass1 ratecontrol.
1055
     * - encoding: set by user.
1056
     * - decoding: unused
1057 b71901e6 Michael Niedermayer
     */
1058 ce980a95 Michael Niedermayer
    float rc_initial_cplx;
1059 917e06c8 Fabrice Bellard
1060 b71901e6 Michael Niedermayer
    /**
1061 64863965 Michael Niedermayer
     * dct algorithm, see FF_DCT_* below.
1062
     * - encoding: set by user
1063
     * - decoding: unused
1064 b71901e6 Michael Niedermayer
     */
1065 28db7fce Michael Niedermayer
    int dct_algo;
1066 c7e07931 Martin Olschewski
#define FF_DCT_AUTO    0
1067 28db7fce Michael Niedermayer
#define FF_DCT_FASTINT 1
1068 c7e07931 Martin Olschewski
#define FF_DCT_INT     2
1069
#define FF_DCT_MMX     3
1070
#define FF_DCT_MLIB    4
1071 05c4072b Michael Niedermayer
#define FF_DCT_ALTIVEC 5
1072 65e4c8c9 Michael Niedermayer
#define FF_DCT_FAAN    6
1073 c5d309f2 Michael Niedermayer
    
1074
    /**
1075 64863965 Michael Niedermayer
     * luminance masking (0-> disabled).
1076
     * - encoding: set by user
1077
     * - decoding: unused
1078 c5d309f2 Michael Niedermayer
     */
1079
    float lumi_masking;
1080
    
1081
    /**
1082 64863965 Michael Niedermayer
     * temporary complexity masking (0-> disabled).
1083
     * - encoding: set by user
1084
     * - decoding: unused
1085 c5d309f2 Michael Niedermayer
     */
1086
    float temporal_cplx_masking;
1087
    
1088
    /**
1089 64863965 Michael Niedermayer
     * spatial complexity masking (0-> disabled).
1090
     * - encoding: set by user
1091
     * - decoding: unused
1092 c5d309f2 Michael Niedermayer
     */
1093
    float spatial_cplx_masking;
1094
    
1095
    /**
1096 64863965 Michael Niedermayer
     * p block masking (0-> disabled).
1097
     * - encoding: set by user
1098
     * - decoding: unused
1099 c5d309f2 Michael Niedermayer
     */
1100
    float p_masking;
1101 15415af4 Michael Niedermayer
1102 5e746b99 Michael Niedermayer
    /**
1103 64863965 Michael Niedermayer
     * darkness masking (0-> disabled).
1104
     * - encoding: set by user
1105
     * - decoding: unused
1106 5e746b99 Michael Niedermayer
     */
1107
    float dark_masking;
1108 0c2dd16e Michael Niedermayer
    
1109 3a694b04 Nick Kurshev
    
1110
    /* for binary compatibility */
1111
    int unused;
1112
    
1113 0c2dd16e Michael Niedermayer
    /**
1114 64863965 Michael Niedermayer
     * idct algorithm, see FF_IDCT_* below.
1115
     * - encoding: set by user
1116
     * - decoding: set by user
1117 2ad1516a Michael Niedermayer
     */
1118
    int idct_algo;
1119
#define FF_IDCT_AUTO         0
1120
#define FF_IDCT_INT          1
1121
#define FF_IDCT_SIMPLE       2
1122
#define FF_IDCT_SIMPLEMMX    3
1123
#define FF_IDCT_LIBMPEG2MMX  4
1124
#define FF_IDCT_PS2          5
1125
#define FF_IDCT_MLIB         6
1126
#define FF_IDCT_ARM          7
1127 05c4072b Michael Niedermayer
#define FF_IDCT_ALTIVEC      8
1128 b82cdc72 Michael Niedermayer
#define FF_IDCT_SH4          9
1129 bd7d1ea7 Alex Beregszaszi
#define FF_IDCT_SIMPLEARM    10
1130 0fa8158d Michael Niedermayer
#define FF_IDCT_H264         11
1131 2ad1516a Michael Niedermayer
1132 144f0625 Michael Niedermayer
    /**
1133 64863965 Michael Niedermayer
     * slice count.
1134
     * - encoding: set by lavc
1135
     * - decoding: set by user (or 0)
1136 144f0625 Michael Niedermayer
     */
1137
    int slice_count;
1138
    /**
1139 64863965 Michael Niedermayer
     * slice offsets in the frame in bytes.
1140
     * - encoding: set/allocated by lavc
1141
     * - decoding: set/allocated by user (or NULL)
1142 144f0625 Michael Niedermayer
     */
1143
    int *slice_offset;
1144
1145 4d2858de Michael Niedermayer
    /**
1146 64863965 Michael Niedermayer
     * error concealment flags.
1147
     * - encoding: unused
1148
     * - decoding: set by user
1149 4d2858de Michael Niedermayer
     */
1150
    int error_concealment;
1151
#define FF_EC_GUESS_MVS   1
1152
#define FF_EC_DEBLOCK     2
1153
1154 6b72ac63 Michael Niedermayer
    /**
1155 bec89a84 Zdenek Kabelac
     * dsp_mask could be add used to disable unwanted CPU features
1156 8350df97 Zdenek Kabelac
     * CPU features (i.e. MMX, SSE. ...)
1157 bec89a84 Zdenek Kabelac
     *
1158
     * with FORCE flag you may instead enable given CPU features
1159
     * (Dangerous: usable in case of misdetection, improper usage however will
1160
     * result into program crash)
1161
     */
1162
    unsigned dsp_mask;
1163
#define FF_MM_FORCE        0x80000000 /* force usage of selected flags (OR) */
1164
    /* lower 16 bits - CPU features */
1165
#ifdef HAVE_MMX
1166
#define FF_MM_MMX        0x0001 /* standard MMX */
1167
#define FF_MM_3DNOW        0x0004 /* AMD 3DNOW */
1168
#define FF_MM_MMXEXT        0x0002 /* SSE integer functions or AMD MMX ext */
1169
#define FF_MM_SSE        0x0008 /* SSE functions */
1170
#define FF_MM_SSE2        0x0010 /* PIV SSE2 functions */
1171
#endif /* HAVE_MMX */
1172 11f18faf Michael Niedermayer
1173
    /**
1174 64863965 Michael Niedermayer
     * bits per sample/pixel from the demuxer (needed for huffyuv).
1175
     * - encoding: set by lavc
1176
     * - decoding: set by user
1177 11f18faf Michael Niedermayer
     */
1178
     int bits_per_sample;
1179
    
1180
    /**
1181 64863965 Michael Niedermayer
     * prediction method (needed for huffyuv).
1182
     * - encoding: set by user
1183
     * - decoding: unused
1184 11f18faf Michael Niedermayer
     */
1185
     int prediction_method;
1186
#define FF_PRED_LEFT   0
1187
#define FF_PRED_PLANE  1
1188
#define FF_PRED_MEDIAN 2
1189 5d3cea3a Michael Niedermayer
    
1190
    /**
1191 5ff85f1d Michael Niedermayer
     * sample aspect ratio (0 if unknown).
1192 1f26c6f3 Michael Niedermayer
     * numerator and denominator must be relative prime and smaller then 256 for some video standards
1193 64863965 Michael Niedermayer
     * - encoding: set by user.
1194
     * - decoding: set by lavc.
1195 5d3cea3a Michael Niedermayer
     */
1196 5ff85f1d Michael Niedermayer
    AVRational sample_aspect_ratio;
1197 1e491e29 Michael Niedermayer
1198
    /**
1199 64863965 Michael Niedermayer
     * the picture in the bitstream.
1200
     * - encoding: set by lavc
1201
     * - decoding: set by lavc
1202 1e491e29 Michael Niedermayer
     */
1203 492cd3a9 Michael Niedermayer
    AVFrame *coded_frame;
1204 c8c437bc Michael Niedermayer
1205
    /**
1206 64863965 Michael Niedermayer
     * debug.
1207
     * - encoding: set by user.
1208
     * - decoding: set by user.
1209 c8c437bc Michael Niedermayer
     */
1210
    int debug;
1211
#define FF_DEBUG_PICT_INFO 1
1212
#define FF_DEBUG_RC        2
1213
#define FF_DEBUG_BITSTREAM 4
1214
#define FF_DEBUG_MB_TYPE   8
1215
#define FF_DEBUG_QP        16
1216
#define FF_DEBUG_MV        32
1217 8289c6fa Wolfgang Hesseler
#define FF_DEBUG_DCT_COEFF 0x00000040
1218 41773b73 Michael Niedermayer
#define FF_DEBUG_SKIP      0x00000080
1219
#define FF_DEBUG_STARTCODE 0x00000100
1220
#define FF_DEBUG_PTS       0x00000200
1221 46b4feec Michael Niedermayer
#define FF_DEBUG_ER        0x00000400
1222 0da71265 Michael Niedermayer
#define FF_DEBUG_MMCO      0x00000800
1223 8fc6c2b5 Michael Niedermayer
#define FF_DEBUG_BUGS      0x00001000
1224 864119b6 Michael Niedermayer
#define FF_DEBUG_VIS_QP    0x00002000
1225
#define FF_DEBUG_VIS_MB_TYPE 0x00004000
1226 140cb663 Michael Niedermayer
    
1227
    /**
1228 0c9bbaec Wolfgang Hesseler
     * debug.
1229
     * - encoding: set by user.
1230
     * - decoding: set by user.
1231
     */
1232
    int debug_mv;
1233
#define FF_DEBUG_VIS_MV_P_FOR  0x00000001 //visualize forward predicted MVs of P frames
1234
#define FF_DEBUG_VIS_MV_B_FOR  0x00000002 //visualize forward predicted MVs of B frames
1235
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1236
1237
    /**
1238 64863965 Michael Niedermayer
     * error.
1239
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1240
     * - decoding: unused
1241 140cb663 Michael Niedermayer
     */
1242
    uint64_t error[4];
1243 17a70fde Michael Niedermayer
    
1244
    /**
1245 64863965 Michael Niedermayer
     * minimum MB quantizer.
1246
     * - encoding: set by user.
1247
     * - decoding: unused
1248 17a70fde Michael Niedermayer
     */
1249
    int mb_qmin;
1250
1251
    /**
1252 64863965 Michael Niedermayer
     * maximum MB quantizer.
1253
     * - encoding: set by user.
1254
     * - decoding: unused
1255 17a70fde Michael Niedermayer
     */
1256
    int mb_qmax;
1257 1457ab52 Michael Niedermayer
    
1258
    /**
1259 64863965 Michael Niedermayer
     * motion estimation compare function.
1260
     * - encoding: set by user.
1261
     * - decoding: unused
1262 1457ab52 Michael Niedermayer
     */
1263
    int me_cmp;
1264
    /**
1265 64863965 Michael Niedermayer
     * subpixel motion estimation compare function.
1266
     * - encoding: set by user.
1267
     * - decoding: unused
1268 1457ab52 Michael Niedermayer
     */
1269
    int me_sub_cmp;
1270
    /**
1271 64863965 Michael Niedermayer
     * macroblock compare function (not supported yet).
1272
     * - encoding: set by user.
1273
     * - decoding: unused
1274 1457ab52 Michael Niedermayer
     */
1275
    int mb_cmp;
1276 622348f9 Michael Niedermayer
    /**
1277
     * interlaced dct compare function
1278
     * - encoding: set by user.
1279
     * - decoding: unused
1280
     */
1281
    int ildct_cmp;
1282 1457ab52 Michael Niedermayer
#define FF_CMP_SAD  0
1283
#define FF_CMP_SSE  1
1284
#define FF_CMP_SATD 2
1285
#define FF_CMP_DCT  3
1286
#define FF_CMP_PSNR 4
1287
#define FF_CMP_BIT  5
1288
#define FF_CMP_RD   6
1289
#define FF_CMP_ZERO 7
1290 622348f9 Michael Niedermayer
#define FF_CMP_VSAD 8
1291
#define FF_CMP_VSSE 9
1292 e6a2ac34 Michael Niedermayer
#define FF_CMP_NSSE 10
1293 26efc54e Michael Niedermayer
#define FF_CMP_W53  11
1294
#define FF_CMP_W97  12
1295 1457ab52 Michael Niedermayer
#define FF_CMP_CHROMA 256
1296
    
1297
    /**
1298 64863965 Michael Niedermayer
     * ME diamond size & shape.
1299
     * - encoding: set by user.
1300
     * - decoding: unused
1301 1457ab52 Michael Niedermayer
     */
1302
    int dia_size;
1303 b07a5980 Michael Niedermayer
1304
    /**
1305 64863965 Michael Niedermayer
     * amount of previous MV predictors (2a+1 x 2a+1 square).
1306
     * - encoding: set by user.
1307
     * - decoding: unused
1308 b07a5980 Michael Niedermayer
     */
1309
    int last_predictor_count;
1310 70ac76c0 Michael Niedermayer
1311 f5fb6b34 Michael Niedermayer
    /**
1312 64863965 Michael Niedermayer
     * pre pass for motion estimation.
1313
     * - encoding: set by user.
1314
     * - decoding: unused
1315 f5fb6b34 Michael Niedermayer
     */
1316
    int pre_me;
1317 b07a5980 Michael Niedermayer
1318 70ac76c0 Michael Niedermayer
    /**
1319 64863965 Michael Niedermayer
     * motion estimation pre pass compare function.
1320
     * - encoding: set by user.
1321
     * - decoding: unused
1322 70ac76c0 Michael Niedermayer
     */
1323
    int me_pre_cmp;
1324 826f429a Michael Niedermayer
1325 70ac76c0 Michael Niedermayer
    /**
1326 64863965 Michael Niedermayer
     * ME pre pass diamond size & shape.
1327
     * - encoding: set by user.
1328
     * - decoding: unused
1329 70ac76c0 Michael Niedermayer
     */
1330
    int pre_dia_size;
1331
1332 826f429a Michael Niedermayer
    /**
1333 64863965 Michael Niedermayer
     * subpel ME quality.
1334
     * - encoding: set by user.
1335
     * - decoding: unused
1336 826f429a Michael Niedermayer
     */
1337
    int me_subpel_quality;
1338
1339 a33c7159 Michael Niedermayer
    /**
1340 64863965 Michael Niedermayer
     * callback to negotiate the pixelFormat.
1341 a33c7159 Michael Niedermayer
     * @param fmt is the list of formats which are supported by the codec,
1342
     * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1343
     * the first is allways the native one
1344
     * @return the choosen format
1345 64863965 Michael Niedermayer
     * - encoding: unused
1346
     * - decoding: set by user, if not set then the native format will always be choosen
1347 a33c7159 Michael Niedermayer
     */
1348 494c56d3 Ivan Kalvachev
    enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
1349 e2f9490e Fabrice Bellard
1350
    /**
1351
     * DTG active format information (additionnal aspect ratio
1352
     * information only used in DVB MPEG2 transport streams). 0 if
1353
     * not set.
1354
     * 
1355 64863965 Michael Niedermayer
     * - encoding: unused.
1356
     * - decoding: set by decoder 
1357 e2f9490e Fabrice Bellard
     */
1358
    int dtg_active_format;
1359
#define FF_DTG_AFD_SAME         8
1360
#define FF_DTG_AFD_4_3          9
1361
#define FF_DTG_AFD_16_9         10
1362
#define FF_DTG_AFD_14_9         11
1363
#define FF_DTG_AFD_4_3_SP_14_9  13
1364
#define FF_DTG_AFD_16_9_SP_14_9 14
1365
#define FF_DTG_AFD_SP_4_3       15
1366
1367 ebbcdc9a Michael Niedermayer
    /**
1368
     * Maximum motion estimation search range in subpel units.
1369
     * if 0 then no limit
1370
     * 
1371 64863965 Michael Niedermayer
     * - encoding: set by user.
1372
     * - decoding: unused.
1373 ebbcdc9a Michael Niedermayer
     */
1374 59e0ac8e Zdenek Kabelac
    int me_range;
1375 ebbcdc9a Michael Niedermayer
1376 65f7062d Michael Niedermayer
    /**
1377
     * frame_rate_base.
1378
     * for variable fps this is 1
1379
     * - encoding: set by user.
1380
     * - decoding: set by lavc.
1381
     * @todo move this after frame_rate
1382
     */
1383
1384 1984f635 Michael Niedermayer
    int frame_rate_base;
1385
    /**
1386
     * intra quantizer bias.
1387
     * - encoding: set by user.
1388
     * - decoding: unused
1389
     */
1390
    int intra_quant_bias;
1391
#define FF_DEFAULT_QUANT_BIAS 999999
1392
    
1393
    /**
1394
     * inter quantizer bias.
1395
     * - encoding: set by user.
1396
     * - decoding: unused
1397
     */
1398
    int inter_quant_bias;
1399 5cd62665 Zdenek Kabelac
1400
    /**
1401
     * color table ID.
1402
     * - encoding: unused.
1403
     * - decoding: which clrtable should be used for 8bit RGB images
1404
     *             table have to be stored somewhere FIXME
1405
     */
1406
    int color_table_id;
1407 1984f635 Michael Niedermayer
    
1408 d90cf87b Michael Niedermayer
    /**
1409
     * internal_buffer count. 
1410
     * Dont touch, used by lavc default_get_buffer()
1411
     */
1412
    int internal_buffer_count;
1413
    
1414
    /**
1415
     * internal_buffers. 
1416
     * Dont touch, used by lavc default_get_buffer()
1417
     */
1418
    void *internal_buffer;
1419 158c7f05 Michael Niedermayer
1420
#define FF_LAMBDA_SHIFT 7
1421
#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1422
#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1423
#define FF_LAMBDA_MAX (256*128-1)
1424
1425
#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
1426 3d2e8cce Michael Niedermayer
    /**
1427
     * global quality for codecs which cannot change it per frame.
1428
     * this should be proportional to MPEG1/2/4 qscale.
1429
     * - encoding: set by user.
1430
     * - decoding: unused
1431
     */
1432
    int global_quality;
1433 11e659c2 Michael Niedermayer
    
1434
#define FF_CODER_TYPE_VLC   0
1435
#define FF_CODER_TYPE_AC    1
1436
    /**
1437
     * coder type
1438
     * - encoding: set by user.
1439
     * - decoding: unused
1440
     */
1441
    int coder_type;
1442
1443
    /**
1444
     * context model
1445
     * - encoding: set by user.
1446
     * - decoding: unused
1447
     */
1448
    int context_model;
1449 3bb07d61 Michael Niedermayer
    
1450
    /**
1451
     * slice flags
1452
     * - encoding: unused
1453
     * - decoding: set by user.
1454
     */
1455
    int slice_flags;
1456
#define SLICE_FLAG_CODED_ORDER    0x0001 ///< draw_horiz_band() is called in coded order instead of display
1457
#define SLICE_FLAG_ALLOW_FIELD    0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1458
#define SLICE_FLAG_ALLOW_PLANE    0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1459
1460 fb364ada Ivan Kalvachev
    /**
1461
     * XVideo Motion Acceleration
1462
     * - encoding: forbidden
1463
     * - decoding: set by decoder
1464
     */
1465
    int xvmc_acceleration;
1466 7d1c3fc1 Michael Niedermayer
    
1467
    /**
1468
     * macroblock decision mode
1469
     * - encoding: set by user.
1470
     * - decoding: unused
1471
     */
1472
    int mb_decision;
1473
#define FF_MB_DECISION_SIMPLE 0        ///< uses mb_cmp
1474
#define FF_MB_DECISION_BITS   1        ///< chooses the one which needs the fewest bits
1475
#define FF_MB_DECISION_RD     2        ///< rate distoration
1476 d6eb3c50 Michael Niedermayer
1477
    /**
1478
     * custom intra quantization matrix
1479
     * - encoding: set by user, can be NULL
1480
     * - decoding: set by lavc
1481
     */
1482
    uint16_t *intra_matrix;
1483
1484
    /**
1485
     * custom inter quantization matrix
1486
     * - encoding: set by user, can be NULL
1487
     * - decoding: set by lavc
1488
     */
1489
    uint16_t *inter_matrix;
1490 7d1c3fc1 Michael Niedermayer
    
1491 541ae140 Michael Niedermayer
    /**
1492
     * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1493
     * this is used to workaround some encoder bugs
1494
     * - encoding: unused
1495
     * - decoding: set by user, will be converted to upper case by lavc during init
1496
     */
1497
    unsigned int stream_codec_tag;
1498 05fbd0a2 Michael Niedermayer
1499
    /**
1500
     * scene change detection threshold.
1501
     * 0 is default, larger means fewer detected scene changes
1502
     * - encoding: set by user.
1503
     * - decoding: unused
1504
     */
1505
    int scenechange_threshold;
1506 158c7f05 Michael Niedermayer
1507
    /**
1508
     * minimum lagrange multipler
1509
     * - encoding: set by user.
1510
     * - decoding: unused
1511
     */
1512
    int lmin;
1513
1514
    /**
1515
     * maximum lagrange multipler
1516
     * - encoding: set by user.
1517
     * - decoding: unused
1518
     */
1519
    int lmax;
1520 2a2bbcb0 Mike Melanson
1521
    /**
1522
     * Palette control structure
1523
     * - encoding: ??? (no palette-enabled encoder yet)
1524
     * - decoding: set by user.
1525
     */
1526
    struct AVPaletteControl *palctrl;
1527 821cb11f Michael Niedermayer
1528
    /**
1529
     * noise reduction strength
1530
     * - encoding: set by user.
1531
     * - decoding: unused
1532
     */
1533
    int noise_reduction;
1534 fa384dcc Michael Niedermayer
    
1535 074c4ca7 Roberto Togni
    /**
1536 e1c2a5a0 Roberto Togni
     * called at the beginning of a frame to get cr buffer for it.
1537
     * buffer type (size, hints) must be the same. lavc won't check it.
1538
     * lavc will pass previous buffer in pic, function should return
1539
     * same buffer or new buffer with old frame "painted" into it.
1540
     * if pic.data[0] == NULL must behave like get_buffer().
1541 074c4ca7 Roberto Togni
     * - encoding: unused
1542 e1c2a5a0 Roberto Togni
     * - decoding: set by lavc, user can override
1543 074c4ca7 Roberto Togni
     */
1544 e1c2a5a0 Roberto Togni
    int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
1545 ba58dabc Michael Niedermayer
1546
    /**
1547
     * number of bits which should be loaded into the rc buffer before decoding starts
1548
     * - encoding: set by user.
1549
     * - decoding: unused
1550
     */
1551
    int rc_initial_buffer_occupancy;
1552
1553
    /**
1554
     *
1555
     * - encoding: set by user.
1556
     * - decoding: unused
1557
     */
1558
    int inter_threshold;
1559
1560
    /**
1561
     * CODEC_FLAG2_*.
1562
     * - encoding: set by user.
1563
     * - decoding: set by user.
1564
     */
1565
    int flags2;
1566 7ebfc0ea Michael Niedermayer
1567
    /**
1568
     * simulates errors in the bitstream to test error concealment.
1569
     * - encoding: set by user.
1570
     * - decoding: unused.
1571
     */
1572
    int error_rate;
1573 a1e257b2 Michael Niedermayer
    
1574
    /**
1575
     * MP3 antialias algorithm, see FF_AA_* below.
1576
     * - encoding: unused
1577
     * - decoding: set by user
1578
     */
1579
    int antialias_algo;
1580
#define FF_AA_AUTO    0
1581
#define FF_AA_FASTINT 1 //not implemented yet
1582
#define FF_AA_INT     2
1583
#define FF_AA_FLOAT   3
1584 77ea0d4b Michael Niedermayer
    /**
1585
     * Quantizer noise shaping.
1586
     * - encoding: set by user
1587
     * - decoding: unused
1588
     */
1589
    int quantizer_noise_shaping;
1590 9c3d33d6 Michael Niedermayer
1591
    /**
1592
     * Thread count.
1593
     * is used to decide how many independant tasks should be passed to execute()
1594
     * - encoding: set by user
1595
     * - decoding: set by user
1596
     */
1597
    int thread_count;
1598
    
1599
    /**
1600
     * the codec may call this to execute several independant things. it will return only after
1601
     * finishing all tasks, the user may replace this with some multithreaded implementation, the
1602
     * default implementation will execute the parts serially
1603 399cec2f Michael Niedermayer
     * @param count the number of things to execute
1604 9c3d33d6 Michael Niedermayer
     * - encoding: set by lavc, user can override
1605
     * - decoding: set by lavc, user can override
1606
     */
1607
    int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
1608
    
1609
    /**
1610
     * Thread opaque.
1611
     * can be used by execute() to store some per AVCodecContext stuff.
1612
     * - encoding: set by execute()
1613
     * - decoding: set by execute()
1614
     */
1615
    void *thread_opaque;
1616 a4d36c11 Michael Niedermayer
1617
    /**
1618 f20f8a8b Michael Niedermayer
     * Motion estimation threshold. under which no motion estimation is 
1619
     * performed, but instead the user specified motion vectors are used
1620 a4d36c11 Michael Niedermayer
     * 
1621
     * - encoding: set by user
1622 f20f8a8b Michael Niedermayer
     * - decoding: unused
1623 a4d36c11 Michael Niedermayer
     */
1624 2750b827 Michael Niedermayer
     int me_threshold;
1625 f20f8a8b Michael Niedermayer
1626
    /**
1627
     * Macroblock threshold. under which the user specified macroblock types will be used
1628
     * - encoding: set by user
1629
     * - decoding: unused
1630
     */
1631
     int mb_threshold;
1632 bf266e19 Michael Niedermayer
1633
    /**
1634 d4c5d2ad Michael Niedermayer
     * precision of the intra dc coefficient - 8.
1635 bf266e19 Michael Niedermayer
     * - encoding: set by user
1636
     * - decoding: unused
1637
     */
1638
     int intra_dc_precision;
1639 d4c5d2ad Michael Niedermayer
1640
    /**
1641
     * noise vs. sse weight for the nsse comparsion function.
1642
     * - encoding: set by user
1643
     * - decoding: unused
1644
     */
1645
     int nsse_weight;
1646 0dfd33c3 Michael Niedermayer
1647
    /**
1648
     * number of macroblock rows at the top which are skiped.
1649
     * - encoding: unused
1650
     * - decoding: set by user
1651
     */
1652
     int skip_top;
1653
1654
    /**
1655
     * number of macroblock rows at the bottom which are skiped.
1656
     * - encoding: unused
1657
     * - decoding: set by user
1658
     */
1659
     int skip_bottom;
1660 baced9f5 Michael Niedermayer
1661
    /**
1662
     * profile
1663
     * - encoding: set by user
1664
     * - decoding: set by lavc
1665
     */
1666
     int profile;
1667
#define FF_PROFILE_UNKNOWN -99
1668
1669
    /**
1670
     * level
1671
     * - encoding: set by user
1672
     * - decoding: set by lavc
1673
     */
1674
     int level;
1675
#define FF_LEVEL_UNKNOWN -99
1676 178fcca8 Michael Niedermayer
1677
    /**
1678
     * low resolution decoding. 1-> 1/2 size, 2->1/4 size
1679
     * - encoding: unused
1680
     * - decoding: set by user
1681
     */
1682
     int lowres;
1683 21adafec Michael Niedermayer
1684
    /**
1685
     * bistream width / height. may be different from width/height if lowres
1686
     * or other things are used
1687
     * - encoding: unused
1688
     * - decoding: set by user before init if known, codec should override / dynamically change if needed
1689
     */
1690
    int coded_width, coded_height;
1691 de6d9b64 Fabrice Bellard
} AVCodecContext;
1692
1693 97d96aaa Zdenek Kabelac
1694 64863965 Michael Niedermayer
/**
1695
 * AVOption.
1696
 */
1697 97d96aaa Zdenek Kabelac
typedef struct AVOption {
1698
    /** options' name */
1699
    const char *name; /* if name is NULL, it indicates a link to next */
1700 bec89a84 Zdenek Kabelac
    /** short English text help or const struct AVOption* subpointer */
1701
    const char *help; //        const struct AVOption* sub;
1702 97d96aaa Zdenek Kabelac
    /** offset to context structure where the parsed value should be stored */
1703
    int offset;
1704
    /** options' type */
1705
    int type;
1706 64863965 Michael Niedermayer
#define FF_OPT_TYPE_BOOL 1      ///< boolean - true,1,on  (or simply presence)
1707
#define FF_OPT_TYPE_DOUBLE 2    ///< double
1708
#define FF_OPT_TYPE_INT 3       ///< integer
1709
#define FF_OPT_TYPE_STRING 4    ///< string (finished with \0)
1710
#define FF_OPT_TYPE_MASK 0x1f        ///< mask for types - upper bits are various flags
1711 97d96aaa Zdenek Kabelac
//#define FF_OPT_TYPE_EXPERT 0x20 // flag for expert option
1712
#define FF_OPT_TYPE_FLAG (FF_OPT_TYPE_BOOL | 0x40)
1713
#define FF_OPT_TYPE_RCOVERRIDE (FF_OPT_TYPE_STRING | 0x80)
1714
    /** min value  (min == max   ->  no limits) */
1715
    double min;
1716
    /** maximum value for double/int */
1717
    double max;
1718
    /** default boo [0,1]l/double/int value */
1719
    double defval;
1720
    /**
1721
     * default string value (with optional semicolon delimited extra option-list
1722
     * i.e.   option1;option2;option3
1723
     * defval might select other then first argument as default
1724
     */
1725
    const char *defstr;
1726
#define FF_OPT_MAX_DEPTH 10
1727
} AVOption;
1728
1729 64863965 Michael Niedermayer
/**
1730 bec89a84 Zdenek Kabelac
 * Parse option(s) and sets fields in passed structure
1731
 * @param strct        structure where the parsed results will be written
1732
 * @param list  list with AVOptions
1733
 * @param opts        string with options for parsing
1734
 */
1735
int avoption_parse(void* strct, const AVOption* list, const char* opts);
1736
1737
1738
/**
1739 64863965 Michael Niedermayer
 * AVCodec.
1740
 */
1741 de6d9b64 Fabrice Bellard
typedef struct AVCodec {
1742 18f77016 Zdenek Kabelac
    const char *name;
1743 5d234974 Zdenek Kabelac
    enum CodecType type;
1744 9297ddd3 Michael Niedermayer
    enum CodecID id;
1745 de6d9b64 Fabrice Bellard
    int priv_data_size;
1746
    int (*init)(AVCodecContext *);
1747 0c1a9eda Zdenek Kabelac
    int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
1748 de6d9b64 Fabrice Bellard
    int (*close)(AVCodecContext *);
1749 0fd90455 Michael Niedermayer
    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
1750 0c1a9eda Zdenek Kabelac
                  uint8_t *buf, int buf_size);
1751 bf89e6b1 Fabrice Bellard
    int capabilities;
1752 97d96aaa Zdenek Kabelac
    const AVOption *options;
1753 de6d9b64 Fabrice Bellard
    struct AVCodec *next;
1754 7a06ff14 Michael Niedermayer
    void (*flush)(AVCodecContext *);
1755 b0df362b Zdenek Kabelac
    const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
1756 fcee0164 Michael Niedermayer
    const enum PixelFormat *pix_fmts;       ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
1757 de6d9b64 Fabrice Bellard
} AVCodec;
1758
1759 97d96aaa Zdenek Kabelac
/**
1760 d7425f59 Michael Niedermayer
 * four components are given, that's all.
1761
 * the last component is alpha
1762
 */
1763 de6d9b64 Fabrice Bellard
typedef struct AVPicture {
1764 0c1a9eda Zdenek Kabelac
    uint8_t *data[4];
1765 cd394651 Michael Niedermayer
    int linesize[4];       ///< number of bytes per line
1766 de6d9b64 Fabrice Bellard
} AVPicture;
1767
1768 ba118447 Mike Melanson
/**
1769
 * AVPaletteControl
1770
 * This structure defines a method for communicating palette changes
1771
 * between and demuxer and a decoder.
1772
 */
1773 2e99641b Roberto Togni
#define AVPALETTE_SIZE 1024
1774 432d84c3 Michael Niedermayer
#define AVPALETTE_COUNT 256
1775 ba118447 Mike Melanson
typedef struct AVPaletteControl {
1776
1777
    /* demuxer sets this to 1 to indicate the palette has changed;
1778
     * decoder resets to 0 */
1779
    int palette_changed;
1780
1781 2a2bbcb0 Mike Melanson
    /* 4-byte ARGB palette entries, stored in native byte order; note that
1782
     * the individual palette components should be on a 8-bit scale; if
1783
     * the palette data comes from a IBM VGA native format, the component
1784
     * data is probably 6 bits in size and needs to be scaled */
1785 2e99641b Roberto Togni
    unsigned int palette[AVPALETTE_COUNT];
1786 ba118447 Mike Melanson
1787
} AVPaletteControl;
1788
1789 de6d9b64 Fabrice Bellard
extern AVCodec ac3_encoder;
1790
extern AVCodec mp2_encoder;
1791 9d36bdc9 Juanjo
extern AVCodec mp3lame_encoder;
1792 81e0d0b4 Mark Hills
extern AVCodec oggvorbis_encoder;
1793 29d48296 Michael Niedermayer
extern AVCodec faac_encoder;
1794 1ddadfa9 Adam Thayer
extern AVCodec xvid_encoder;
1795 de6d9b64 Fabrice Bellard
extern AVCodec mpeg1video_encoder;
1796 029911d1 Michael Niedermayer
extern AVCodec mpeg2video_encoder;
1797 1c3990db Michael Niedermayer
extern AVCodec h261_encoder;
1798 de6d9b64 Fabrice Bellard
extern AVCodec h263_encoder;
1799
extern AVCodec h263p_encoder;
1800 d4f5d74a Garrick Meeker
extern AVCodec flv_encoder;
1801 de6d9b64 Fabrice Bellard
extern AVCodec rv10_encoder;
1802 68b94c35 Michael Niedermayer
extern AVCodec rv20_encoder;
1803 6faa4645 Roman Shaposhnik
extern AVCodec dvvideo_encoder;
1804 de6d9b64 Fabrice Bellard
extern AVCodec mjpeg_encoder;
1805 b1e6b355 Michael Niedermayer
extern AVCodec ljpeg_encoder;
1806 4eff7cf4 Michael Niedermayer
extern AVCodec png_encoder;
1807 5b6d5596 Michael Niedermayer
extern AVCodec ppm_encoder;
1808
extern AVCodec pgm_encoder;
1809
extern AVCodec pgmyuv_encoder;
1810
extern AVCodec pbm_encoder;
1811
extern AVCodec pam_encoder;
1812 bf89e6b1 Fabrice Bellard
extern AVCodec mpeg4_encoder;
1813 84afee34 Michael Niedermayer
extern AVCodec msmpeg4v1_encoder;
1814
extern AVCodec msmpeg4v2_encoder;
1815
extern AVCodec msmpeg4v3_encoder;
1816 0151a6f5 Michael Niedermayer
extern AVCodec wmv1_encoder;
1817
extern AVCodec wmv2_encoder;
1818 11f18faf Michael Niedermayer
extern AVCodec huffyuv_encoder;
1819 0da71265 Michael Niedermayer
extern AVCodec h264_encoder;
1820 3d2e8cce Michael Niedermayer
extern AVCodec asv1_encoder;
1821 9b56edf5 Michael Niedermayer
extern AVCodec asv2_encoder;
1822 be3564ed Michael Niedermayer
extern AVCodec vcr1_encoder;
1823 5e20f836 Michael Niedermayer
extern AVCodec ffv1_encoder;
1824 791e7b83 Michael Niedermayer
extern AVCodec snow_encoder;
1825 c3bf0288 Michael Niedermayer
extern AVCodec mdec_encoder;
1826 a273bbfb Roberto Togni
extern AVCodec zlib_encoder;
1827 54f5fd22 Alex Beregszaszi
extern AVCodec sonic_encoder;
1828
extern AVCodec sonic_ls_encoder;
1829 3b64893d Mike Melanson
extern AVCodec svq1_encoder;
1830 de6d9b64 Fabrice Bellard
1831
extern AVCodec h263_decoder;
1832 c6148de2 Michael Niedermayer
extern AVCodec h261_decoder;
1833 bf89e6b1 Fabrice Bellard
extern AVCodec mpeg4_decoder;
1834 84afee34 Michael Niedermayer
extern AVCodec msmpeg4v1_decoder;
1835
extern AVCodec msmpeg4v2_decoder;
1836
extern AVCodec msmpeg4v3_decoder;
1837 e1a9dbff Michael Niedermayer
extern AVCodec wmv1_decoder;
1838 0151a6f5 Michael Niedermayer
extern AVCodec wmv2_decoder;
1839 922bc38d Michael Niedermayer
extern AVCodec mpeg1video_decoder;
1840
extern AVCodec mpeg2video_decoder;
1841 c512b303 Ivan Kalvachev
extern AVCodec mpegvideo_decoder;
1842 fb364ada Ivan Kalvachev
extern AVCodec mpeg_xvmc_decoder;
1843 de6d9b64 Fabrice Bellard
extern AVCodec h263i_decoder;
1844 d4f5d74a Garrick Meeker
extern AVCodec flv_decoder;
1845 de6d9b64 Fabrice Bellard
extern AVCodec rv10_decoder;
1846 68b94c35 Michael Niedermayer
extern AVCodec rv20_decoder;
1847 be8ffec9 Nick Kurshev
extern AVCodec svq1_decoder;
1848 8b82a956 Michael Niedermayer
extern AVCodec svq3_decoder;
1849 020fcc94 Fabrice Bellard
extern AVCodec dvvideo_decoder;
1850 bc8d1857 Fabrice Bellard
extern AVCodec wmav1_decoder;
1851
extern AVCodec wmav2_decoder;
1852 4e66ab3b Fabrice Bellard
extern AVCodec mjpeg_decoder;
1853 b135d9fb Alex Beregszaszi
extern AVCodec mjpegb_decoder;
1854 5e83dec4 Alex Beregszaszi
extern AVCodec sp5x_decoder;
1855 4eff7cf4 Michael Niedermayer
extern AVCodec png_decoder;
1856 4b1f4f23 Juanjo
extern AVCodec mp2_decoder;
1857 a96b68b7 Fabrice Bellard
extern AVCodec mp3_decoder;
1858 3f95e843 François Revol
extern AVCodec mace3_decoder;
1859
extern AVCodec mace6_decoder;
1860 11f18faf Michael Niedermayer
extern AVCodec huffyuv_decoder;
1861 3aca208a Mark Hills
extern AVCodec oggvorbis_decoder;
1862 f70f7c6d Michael Niedermayer
extern AVCodec cyuv_decoder;
1863 0da71265 Michael Niedermayer
extern AVCodec h264_decoder;
1864 deabd4fd Mike Melanson
extern AVCodec indeo3_decoder;
1865 d86053a4 Mike Melanson
extern AVCodec vp3_decoder;
1866 f44ee2c3 Alex Beregszaszi
extern AVCodec theora_decoder;
1867 891f64b3 joca@rixmail.se
extern AVCodec amr_nb_decoder;
1868 bc634f6f Zdenek Kabelac
extern AVCodec amr_nb_encoder;
1869 d663a1fd Michael Niedermayer
extern AVCodec amr_wb_encoder;
1870
extern AVCodec amr_wb_decoder;
1871 280bd7b7 Zdenek Kabelac
extern AVCodec aac_decoder;
1872
extern AVCodec mpeg4aac_decoder;
1873 3d2e8cce Michael Niedermayer
extern AVCodec asv1_decoder;
1874 9b56edf5 Michael Niedermayer
extern AVCodec asv2_decoder;
1875 be3564ed Michael Niedermayer
extern AVCodec vcr1_decoder;
1876 3aff069b Alex Beregszaszi
extern AVCodec cljr_decoder;
1877 5e20f836 Michael Niedermayer
extern AVCodec ffv1_decoder;
1878 791e7b83 Michael Niedermayer
extern AVCodec snow_decoder;
1879 8809cfee Michael Niedermayer
extern AVCodec fourxm_decoder;
1880 c3bf0288 Michael Niedermayer
extern AVCodec mdec_decoder;
1881 3ef8be2b Mike Melanson
extern AVCodec roq_decoder;
1882
extern AVCodec interplay_video_decoder;
1883 9937e686 Mike Melanson
extern AVCodec xan_wc3_decoder;
1884 2fdf638b Mike Melanson
extern AVCodec rpza_decoder;
1885
extern AVCodec cinepak_decoder;
1886
extern AVCodec msrle_decoder;
1887
extern AVCodec msvideo1_decoder;
1888 6955a882 Mike Melanson
extern AVCodec vqa_decoder;
1889 4120a53a Mike Melanson
extern AVCodec idcin_decoder;
1890 1dc1ed99 Roberto Togni
extern AVCodec eightbps_decoder;
1891 11e29a41 Mike Melanson
extern AVCodec smc_decoder;
1892 42cad81a Mike Melanson
extern AVCodec flic_decoder;
1893 fafa0b75 Mike Melanson
extern AVCodec vmdvideo_decoder;
1894
extern AVCodec vmdaudio_decoder;
1895 9a4117d5 Mike Melanson
extern AVCodec truemotion1_decoder;
1896 a273bbfb Roberto Togni
extern AVCodec mszh_decoder;
1897
extern AVCodec zlib_decoder;
1898 b8414bbd Nick Kurshev
extern AVCodec ra_144_decoder;
1899
extern AVCodec ra_288_decoder;
1900 3ef8be2b Mike Melanson
extern AVCodec roq_dpcm_decoder;
1901
extern AVCodec interplay_dpcm_decoder;
1902 9937e686 Mike Melanson
extern AVCodec xan_dpcm_decoder;
1903 d08d7142 Mike Melanson
extern AVCodec sol_dpcm_decoder;
1904 54f5fd22 Alex Beregszaszi
extern AVCodec sonic_decoder;
1905 070ed1bc Mike Melanson
extern AVCodec qtrle_decoder;
1906 ac2570a8 Michael Niedermayer
extern AVCodec flac_decoder;
1907 9d53d58e Mike Melanson
extern AVCodec tscc_decoder;
1908 d0a0bbd2 Mike Melanson
extern AVCodec ulti_decoder;
1909 d08d7142 Mike Melanson
extern AVCodec qdraw_decoder;
1910 ab711b3c Mike Melanson
extern AVCodec xl_decoder;
1911 acfd8f0f Mike Melanson
extern AVCodec qpeg_decoder;
1912 de6d9b64 Fabrice Bellard
1913 a96b68b7 Fabrice Bellard
/* pcm codecs */
1914
#define PCM_CODEC(id, name) \
1915
extern AVCodec name ## _decoder; \
1916 f11d3f23 Michael Niedermayer
extern AVCodec name ## _encoder
1917 a96b68b7 Fabrice Bellard
1918
PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
1919
PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
1920
PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
1921
PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
1922
PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
1923
PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
1924
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
1925
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
1926
1927 0147f198 François Revol
/* adpcm codecs */
1928
1929
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
1930
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
1931 9937e686 Mike Melanson
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
1932
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
1933 2fdf638b Mike Melanson
PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
1934 7d8379f2 Mike Melanson
PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
1935 0147f198 François Revol
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
1936 4b465299 Michael Niedermayer
PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
1937 fc384777 Mike Melanson
PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
1938
PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
1939 7d8379f2 Mike Melanson
PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
1940 e5966052 Roman Shaposhnik
PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
1941 b3bfb299 Mike Melanson
PCM_CODEC(CODEC_ID_ADPCM_CT, adpcm_ct);
1942 0147f198 François Revol
1943 a96b68b7 Fabrice Bellard
#undef PCM_CODEC
1944
1945
/* dummy raw video codec */
1946 63167088 Roman Shaposhnik
extern AVCodec rawvideo_encoder;
1947
extern AVCodec rawvideo_decoder;
1948 de6d9b64 Fabrice Bellard
1949
/* the following codecs use external GPL libs */
1950
extern AVCodec ac3_decoder;
1951 23c99253 Michael Niedermayer
extern AVCodec dts_decoder;
1952 de6d9b64 Fabrice Bellard
1953
/* resample.c */
1954
1955
struct ReSampleContext;
1956 aaaf1635 Michael Niedermayer
struct AVResampleContext;
1957 de6d9b64 Fabrice Bellard
1958
typedef struct ReSampleContext ReSampleContext;
1959
1960
ReSampleContext *audio_resample_init(int output_channels, int input_channels, 
1961
                                     int output_rate, int input_rate);
1962
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
1963
void audio_resample_close(ReSampleContext *s);
1964
1965 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);
1966 aaaf1635 Michael Niedermayer
int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
1967 2d48eddd Michael Niedermayer
void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
1968 d88443ae William Juwono
void av_resample_close(struct AVResampleContext *c);
1969 aaaf1635 Michael Niedermayer
1970 de6d9b64 Fabrice Bellard
/* YUV420 format is assumed ! */
1971
1972
struct ImgReSampleContext;
1973
1974
typedef struct ImgReSampleContext ImgReSampleContext;
1975
1976
ImgReSampleContext *img_resample_init(int output_width, int output_height,
1977
                                      int input_width, int input_height);
1978 ab6d194a Michael Niedermayer
1979
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
1980
                                      int iwidth, int iheight,
1981
                                      int topBand, int bottomBand,
1982 1ff93ffc Todd Kirby
                                      int leftBand, int rightBand,
1983
                                      int padtop, int padbottom,
1984
                                      int padleft, int padright);
1985
1986 ab6d194a Michael Niedermayer
1987 de6d9b64 Fabrice Bellard
void img_resample(ImgReSampleContext *s, 
1988 da64ecc3 Drew Hess
                  AVPicture *output, const AVPicture *input);
1989 de6d9b64 Fabrice Bellard
1990
void img_resample_close(ImgReSampleContext *s);
1991
1992 75917b88 Drew Hess
/**
1993
 * Allocate memory for a picture.  Call avpicture_free to free it.
1994
 *
1995
 * @param picture the picture to be filled in.
1996
 * @param pix_fmt the format of the picture.
1997
 * @param width the width of the picture.
1998
 * @param height the height of the picture.
1999
 * @return 0 if successful, -1 if not.
2000
 */
2001
int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
2002
2003
/* Free a picture previously allocated by avpicture_alloc. */
2004
void avpicture_free(AVPicture *picture);
2005
2006 0c1a9eda Zdenek Kabelac
int avpicture_fill(AVPicture *picture, uint8_t *ptr,
2007 2d1a4094 Fabrice Bellard
                   int pix_fmt, int width, int height);
2008 da64ecc3 Drew Hess
int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
2009 63167088 Roman Shaposhnik
                     unsigned char *dest, int dest_size);
2010 219b06c6 Fabrice Bellard
int avpicture_get_size(int pix_fmt, int width, int height);
2011 dab64ebc Fabrice Bellard
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
2012
const char *avcodec_get_pix_fmt_name(int pix_fmt);
2013 21adafec Michael Niedermayer
void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
2014 63167088 Roman Shaposhnik
enum PixelFormat avcodec_get_pix_fmt(const char* name);
2015 d07730dd Michael Niedermayer
unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat p);
2016 219b06c6 Fabrice Bellard
2017 fab21997 Fabrice Bellard
#define FF_LOSS_RESOLUTION  0x0001 /* loss due to resolution change */
2018
#define FF_LOSS_DEPTH       0x0002 /* loss due to color depth change */
2019
#define FF_LOSS_COLORSPACE  0x0004 /* loss due to color space conversion */
2020
#define FF_LOSS_ALPHA       0x0008 /* loss of alpha bits */
2021
#define FF_LOSS_COLORQUANT  0x0010 /* loss due to color quantization */
2022
#define FF_LOSS_CHROMA      0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
2023
2024
int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
2025
                             int has_alpha);
2026
int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
2027
                              int has_alpha, int *loss_ptr);
2028
2029 0469baf1 Fabrice Bellard
#define FF_ALPHA_TRANSP       0x0001 /* image has some totally transparent pixels */
2030
#define FF_ALPHA_SEMI_TRANSP  0x0002 /* image has some transparent pixels */
2031 da64ecc3 Drew Hess
int img_get_alpha_info(const AVPicture *src,
2032
                       int pix_fmt, int width, int height);
2033 0469baf1 Fabrice Bellard
2034 219b06c6 Fabrice Bellard
/* convert among pixel formats */
2035
int img_convert(AVPicture *dst, int dst_pix_fmt,
2036 da64ecc3 Drew Hess
                const AVPicture *src, int pix_fmt, 
2037 219b06c6 Fabrice Bellard
                int width, int height);
2038
2039
/* deinterlace a picture */
2040 da64ecc3 Drew Hess
int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
2041 de6d9b64 Fabrice Bellard
                          int pix_fmt, int width, int height);
2042
2043
/* external high level API */
2044
2045
extern AVCodec *first_avcodec;
2046
2047 156e5023 Nick Kurshev
/* returns LIBAVCODEC_VERSION_INT constant */
2048 51a49663 Fabrice Bellard
unsigned avcodec_version(void);
2049 8bceb6af Nick Kurshev
/* returns LIBAVCODEC_BUILD constant */
2050 51a49663 Fabrice Bellard
unsigned avcodec_build(void);
2051 de6d9b64 Fabrice Bellard
void avcodec_init(void);
2052
2053
void register_avcodec(AVCodec *format);
2054
AVCodec *avcodec_find_encoder(enum CodecID id);
2055 98f3b098 Arpi
AVCodec *avcodec_find_encoder_by_name(const char *name);
2056 de6d9b64 Fabrice Bellard
AVCodec *avcodec_find_decoder(enum CodecID id);
2057
AVCodec *avcodec_find_decoder_by_name(const char *name);
2058
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
2059
2060 1e491e29 Michael Niedermayer
void avcodec_get_context_defaults(AVCodecContext *s);
2061 7ffbb60e Falk Hüffner
AVCodecContext *avcodec_alloc_context(void);
2062 7906085f Falk Hüffner
void avcodec_get_frame_defaults(AVFrame *pic);
2063 492cd3a9 Michael Niedermayer
AVFrame *avcodec_alloc_frame(void);
2064 1e491e29 Michael Niedermayer
2065 492cd3a9 Michael Niedermayer
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
2066
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
2067 3a569751 Michael Niedermayer
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
2068
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
2069
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
2070 1e491e29 Michael Niedermayer
2071 5a815088 Michael Niedermayer
int avcodec_thread_init(AVCodecContext *s, int thread_count);
2072
void avcodec_thread_free(AVCodecContext *s);
2073
int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2074 3a569751 Michael Niedermayer
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2075 9c3d33d6 Michael Niedermayer
//FIXME func typedef
2076
2077 7a06ff14 Michael Niedermayer
/**
2078
 * opens / inits the AVCodecContext.
2079
 * not thread save!
2080
 */
2081 de6d9b64 Fabrice Bellard
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
2082 7a06ff14 Michael Niedermayer
2083 0c1a9eda Zdenek Kabelac
int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples, 
2084 de6d9b64 Fabrice Bellard
                         int *frame_size_ptr,
2085 0c1a9eda Zdenek Kabelac
                         uint8_t *buf, int buf_size);
2086 492cd3a9 Michael Niedermayer
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture, 
2087 de6d9b64 Fabrice Bellard
                         int *got_picture_ptr,
2088 0c1a9eda Zdenek Kabelac
                         uint8_t *buf, int buf_size);
2089
int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata, 
2090 917e06c8 Fabrice Bellard
                        int *data_size_ptr,
2091 0c1a9eda Zdenek Kabelac
                        uint8_t *buf, int buf_size);
2092
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
2093 de6d9b64 Fabrice Bellard
                         const short *samples);
2094 0c1a9eda Zdenek Kabelac
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
2095 492cd3a9 Michael Niedermayer
                         const AVFrame *pict);
2096 de6d9b64 Fabrice Bellard
2097
int avcodec_close(AVCodecContext *avctx);
2098
2099
void avcodec_register_all(void);
2100 a96b68b7 Fabrice Bellard
2101 1c2a8c7f Michael Niedermayer
void avcodec_flush_buffers(AVCodecContext *avctx);
2102
2103 14bea432 Michael Niedermayer
/* misc usefull functions */
2104 d8085ea7 Michael Niedermayer
2105
/**
2106
 * returns a single letter to describe the picture type
2107
 */
2108
char av_get_pict_type_char(int pict_type);
2109
2110 14bea432 Michael Niedermayer
/**
2111
 * reduce a fraction.
2112
 * this is usefull for framerate calculations
2113
 * @param max the maximum allowed for dst_nom & dst_den
2114
 * @return 1 if exact, 0 otherwise
2115
 */
2116
int av_reduce(int *dst_nom, int *dst_den, int64_t nom, int64_t den, int64_t max);
2117
2118
/**
2119 1f018225 Michael Niedermayer
 * rescale a 64bit integer with rounding to nearest.
2120 14bea432 Michael Niedermayer
 * a simple a*b/c isnt possible as it can overflow
2121
 */
2122 4c263142 Michael Niedermayer
int64_t av_rescale(int64_t a, int64_t b, int64_t c);
2123 628d601b Zdenek Kabelac
2124 1f018225 Michael Niedermayer
/**
2125
 * rescale a 64bit integer with specified rounding.
2126
 * a simple a*b/c isnt possible as it can overflow
2127
 */
2128
int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding);
2129 628d601b Zdenek Kabelac
2130 8424cf50 Fabrice Bellard
/* frame parsing */
2131
typedef struct AVCodecParserContext {
2132
    void *priv_data;
2133
    struct AVCodecParser *parser;
2134
    int64_t frame_offset; /* offset of the current frame */
2135
    int64_t cur_offset; /* current offset 
2136
                           (incremented by each av_parser_parse()) */
2137
    int64_t last_frame_offset; /* offset of the last frame */
2138
    /* video info */
2139
    int pict_type; /* XXX: put it back in AVCodecContext */
2140
    int repeat_pict; /* XXX: put it back in AVCodecContext */
2141 b84f2a35 Fabrice Bellard
    int64_t pts;     /* pts of the current frame */
2142
    int64_t dts;     /* dts of the current frame */
2143
2144
    /* private data */
2145
    int64_t last_pts;
2146
    int64_t last_dts;
2147 a62aecce Michael Niedermayer
    int fetch_timestamp;
2148 b84f2a35 Fabrice Bellard
2149
#define AV_PARSER_PTS_NB 4
2150
    int cur_frame_start_index;
2151
    int64_t cur_frame_offset[AV_PARSER_PTS_NB];
2152
    int64_t cur_frame_pts[AV_PARSER_PTS_NB];
2153
    int64_t cur_frame_dts[AV_PARSER_PTS_NB];
2154 8424cf50 Fabrice Bellard
} AVCodecParserContext;
2155
2156
typedef struct AVCodecParser {
2157 99f06236 Michael Niedermayer
    int codec_ids[5]; /* several codec IDs are permitted */
2158 8424cf50 Fabrice Bellard
    int priv_data_size;
2159
    int (*parser_init)(AVCodecParserContext *s);
2160
    int (*parser_parse)(AVCodecParserContext *s, 
2161
                        AVCodecContext *avctx,
2162
                        uint8_t **poutbuf, int *poutbuf_size, 
2163
                        const uint8_t *buf, int buf_size);
2164
    void (*parser_close)(AVCodecParserContext *s);
2165
    struct AVCodecParser *next;
2166
} AVCodecParser;
2167
2168
extern AVCodecParser *av_first_parser;
2169
2170
void av_register_codec_parser(AVCodecParser *parser);
2171
AVCodecParserContext *av_parser_init(int codec_id);
2172
int av_parser_parse(AVCodecParserContext *s, 
2173
                    AVCodecContext *avctx,
2174
                    uint8_t **poutbuf, int *poutbuf_size, 
2175 b84f2a35 Fabrice Bellard
                    const uint8_t *buf, int buf_size,
2176
                    int64_t pts, int64_t dts);
2177 8424cf50 Fabrice Bellard
void av_parser_close(AVCodecParserContext *s);
2178
2179
extern AVCodecParser mpegvideo_parser;
2180
extern AVCodecParser mpeg4video_parser;
2181 c6148de2 Michael Niedermayer
extern AVCodecParser h261_parser;
2182 8424cf50 Fabrice Bellard
extern AVCodecParser h263_parser;
2183
extern AVCodecParser h264_parser;
2184 8e6325b9 Michael Niedermayer
extern AVCodecParser mjpeg_parser;
2185 99f06236 Michael Niedermayer
extern AVCodecParser pnm_parser;
2186 8424cf50 Fabrice Bellard
extern AVCodecParser mpegaudio_parser;
2187
extern AVCodecParser ac3_parser;
2188
2189 544eb99c Fabrice Bellard
/* memory */
2190 e4eadb4b Michael Niedermayer
void *av_malloc(unsigned int size);
2191 18f77016 Zdenek Kabelac
void *av_mallocz(unsigned int size);
2192 8e1e6f31 Fabrice Bellard
void *av_realloc(void *ptr, unsigned int size);
2193 544eb99c Fabrice Bellard
void av_free(void *ptr);
2194 8e1e6f31 Fabrice Bellard
char *av_strdup(const char *s);
2195 81c5f887 Michael Niedermayer
void av_freep(void *ptr);
2196 97d96aaa Zdenek Kabelac
void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
2197 855ea723 Zdenek Kabelac
/* for static data only */
2198
/* call av_free_static to release all staticaly allocated tables */
2199 628d601b Zdenek Kabelac
void av_free_static(void);
2200 8d1f2ba5 Michael Niedermayer
void *av_mallocz_static(unsigned int size);
2201 073c2593 Burkhard Plaum
void *av_realloc_static(void *ptr, unsigned int size);
2202 544eb99c Fabrice Bellard
2203 fc384777 Mike Melanson
/* add by bero : in adx.c */
2204
int is_adx(const unsigned char *buf,size_t bufsize);
2205
2206 e1c2a5a0 Roberto Togni
void img_copy(AVPicture *dst, const AVPicture *src,
2207
              int pix_fmt, int width, int height);
2208
2209 9b879566 Michel Bardiaux
/* av_log API */
2210
2211
#include <stdarg.h>
2212
2213 d8019eb5 Allen Day
#define AV_LOG_QUIET -1
2214 9b879566 Michel Bardiaux
#define AV_LOG_ERROR 0
2215
#define AV_LOG_INFO 1
2216
#define AV_LOG_DEBUG 2
2217
2218 f4bd8cf0 Michael Niedermayer
#ifdef __GNUC__
2219 bc874dae Michel Bardiaux
extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
2220 f4bd8cf0 Michael Niedermayer
#else
2221
extern void av_log(void*, int level, const char *fmt, ...);
2222
#endif
2223
2224 bc874dae Michel Bardiaux
extern void av_vlog(void*, int level, const char *fmt, va_list);
2225 9b879566 Michel Bardiaux
extern int av_log_get_level(void);
2226
extern void av_log_set_level(int);
2227 bc874dae Michel Bardiaux
extern void av_log_set_callback(void (*)(void*, int, const char*, va_list));
2228 9b879566 Michel Bardiaux
2229 3a278992 Mike Melanson
/* endian macros */
2230 e96682e6 Michael Niedermayer
#if !defined(BE_16) || !defined(BE_32) || !defined(LE_16) || !defined(LE_32)
2231 3a278992 Mike Melanson
#define BE_16(x)  ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
2232
#define BE_32(x)  ((((uint8_t*)(x))[0] << 24) | \
2233
                   (((uint8_t*)(x))[1] << 16) | \
2234
                   (((uint8_t*)(x))[2] << 8) | \
2235
                    ((uint8_t*)(x))[3])
2236
#define LE_16(x)  ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
2237
#define LE_32(x)  ((((uint8_t*)(x))[3] << 24) | \
2238
                   (((uint8_t*)(x))[2] << 16) | \
2239
                   (((uint8_t*)(x))[1] << 8) | \
2240
                    ((uint8_t*)(x))[0])
2241 e96682e6 Michael Niedermayer
#endif
2242 3a278992 Mike Melanson
2243 02d697aa Zdenek Kabelac
#ifdef __cplusplus
2244
}
2245
#endif
2246
2247 a96b68b7 Fabrice Bellard
#endif /* AVCODEC_H */