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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       4735
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#define LIBAVCODEC_VERSION_INT FFMPEG_VERSION_INT
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#define LIBAVCODEC_VERSION     FFMPEG_VERSION
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#define AV_STRINGIFY(s)        AV_TOSTRING(s)
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#define AV_TOSTRING(s) #s
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#define LIBAVCODEC_IDENT        "FFmpeg" LIBAVCODEC_VERSION "b" AV_STRINGIFY(LIBAVCODEC_BUILD)
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#define AV_NOPTS_VALUE int64_t_C(0x8000000000000000)
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#define AV_TIME_BASE 1000000
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enum CodecID {
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    CODEC_ID_NONE, 
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    CODEC_ID_MPEG1VIDEO,
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    CODEC_ID_MPEG2VIDEO, /* prefered ID for MPEG Video 1 or 2 decoding */
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    CODEC_ID_MPEG2VIDEO_XVMC,
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    CODEC_ID_H261,
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    CODEC_ID_H263,
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    CODEC_ID_RV10,
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    CODEC_ID_RV20,
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    CODEC_ID_MJPEG,
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    CODEC_ID_MJPEGB,
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    CODEC_ID_LJPEG,
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    CODEC_ID_SP5X,
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    CODEC_ID_MPEG4,
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    CODEC_ID_RAWVIDEO,
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    CODEC_ID_MSMPEG4V1,
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    CODEC_ID_MSMPEG4V2,
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    CODEC_ID_MSMPEG4V3,
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    CODEC_ID_WMV1,
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    CODEC_ID_WMV2,
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    CODEC_ID_H263P,
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    CODEC_ID_H263I,
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    CODEC_ID_FLV1,
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    CODEC_ID_SVQ1,
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    CODEC_ID_SVQ3,
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    CODEC_ID_DVVIDEO,
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    CODEC_ID_HUFFYUV,
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    CODEC_ID_CYUV,
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    CODEC_ID_H264,
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    CODEC_ID_INDEO3,
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    CODEC_ID_VP3,
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    CODEC_ID_THEORA,
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    CODEC_ID_ASV1,
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    CODEC_ID_ASV2,
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    CODEC_ID_FFV1,
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    CODEC_ID_4XM,
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    CODEC_ID_VCR1,
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    CODEC_ID_CLJR,
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    CODEC_ID_MDEC,
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    CODEC_ID_ROQ,
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    CODEC_ID_INTERPLAY_VIDEO,
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    CODEC_ID_XAN_WC3,
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    CODEC_ID_XAN_WC4,
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    CODEC_ID_RPZA,
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    CODEC_ID_CINEPAK,
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    CODEC_ID_WS_VQA,
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    CODEC_ID_MSRLE,
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    CODEC_ID_MSVIDEO1,
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    CODEC_ID_IDCIN,
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    CODEC_ID_8BPS,
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    CODEC_ID_SMC,
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    CODEC_ID_FLIC,
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    CODEC_ID_TRUEMOTION1,
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    CODEC_ID_VMDVIDEO,
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    CODEC_ID_MSZH,
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    CODEC_ID_ZLIB,
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    CODEC_ID_QTRLE,
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    CODEC_ID_SNOW,
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    CODEC_ID_TSCC,
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    CODEC_ID_ULTI,
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    CODEC_ID_QDRAW,
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    CODEC_ID_VIXL,
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    CODEC_ID_QPEG,
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    CODEC_ID_XVID,
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    CODEC_ID_PNG,
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    CODEC_ID_PPM,
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    CODEC_ID_PBM,
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    CODEC_ID_PGM,
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    CODEC_ID_PGMYUV,
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    CODEC_ID_PAM,
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    CODEC_ID_FFVHUFF,
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    /* various pcm "codecs" */
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    CODEC_ID_PCM_S16LE= 0x10000,
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    CODEC_ID_PCM_S16BE,
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    CODEC_ID_PCM_U16LE,
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    CODEC_ID_PCM_U16BE,
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    CODEC_ID_PCM_S8,
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    CODEC_ID_PCM_U8,
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    CODEC_ID_PCM_MULAW,
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    CODEC_ID_PCM_ALAW,
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    /* various adpcm codecs */
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    CODEC_ID_ADPCM_IMA_QT= 0x11000,
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    CODEC_ID_ADPCM_IMA_WAV,
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    CODEC_ID_ADPCM_IMA_DK3,
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    CODEC_ID_ADPCM_IMA_DK4,
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    CODEC_ID_ADPCM_IMA_WS,
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    CODEC_ID_ADPCM_IMA_SMJPEG,
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    CODEC_ID_ADPCM_MS,
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    CODEC_ID_ADPCM_4XM,
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    CODEC_ID_ADPCM_XA,
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    CODEC_ID_ADPCM_ADX,
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    CODEC_ID_ADPCM_EA,
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    CODEC_ID_ADPCM_G726,
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    CODEC_ID_ADPCM_CT,
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    /* AMR */
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    CODEC_ID_AMR_NB= 0x12000,
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    CODEC_ID_AMR_WB,
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    /* RealAudio codecs*/
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    CODEC_ID_RA_144= 0x13000,
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    CODEC_ID_RA_288,
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    /* various DPCM codecs */
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    CODEC_ID_ROQ_DPCM= 0x14000,
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    CODEC_ID_INTERPLAY_DPCM,
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    CODEC_ID_XAN_DPCM,
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    CODEC_ID_SOL_DPCM,
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    CODEC_ID_MP2= 0x15000,
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    CODEC_ID_MP3, /* prefered ID for MPEG Audio layer 1, 2 or3 decoding */
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    CODEC_ID_AAC,
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    CODEC_ID_MPEG4AAC,
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    CODEC_ID_AC3,
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    CODEC_ID_DTS,
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    CODEC_ID_VORBIS,
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    CODEC_ID_DVAUDIO,
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    CODEC_ID_WMAV1,
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    CODEC_ID_WMAV2,
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    CODEC_ID_MACE3,
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    CODEC_ID_MACE6,
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    CODEC_ID_VMDAUDIO,
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    CODEC_ID_SONIC,
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    CODEC_ID_SONIC_LS,
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    CODEC_ID_FLAC,
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    CODEC_ID_MPEG2TS= 0x20000, /* _FAKE_ codec to indicate a raw MPEG2 transport
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                         stream (only used by libavformat) */
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};
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/* CODEC_ID_MP3LAME is absolete */
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#define CODEC_ID_MP3LAME CODEC_ID_MP3
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enum CodecType {
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    CODEC_TYPE_UNKNOWN = -1,
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    CODEC_TYPE_VIDEO,
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    CODEC_TYPE_AUDIO,
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    CODEC_TYPE_DATA,
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};
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/**
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 * Pixel format. Notes: 
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 *
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 * PIX_FMT_RGBA32 is handled in an endian-specific manner. A RGBA
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 * color is put together as:
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 *  (A << 24) | (R << 16) | (G << 8) | B
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 * This is stored as BGRA on little endian CPU architectures and ARGB on
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 * big endian CPUs.
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 *
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 * When the pixel format is palettized RGB (PIX_FMT_PAL8), the palettized
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 * image data is stored in AVFrame.data[0]. The palette is transported in
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 * AVFrame.data[1] and, is 1024 bytes long (256 4-byte entries) and is
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 * formatted the same as in PIX_FMT_RGBA32 described above (i.e., it is
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 * also endian-specific). Note also that the individual RGB palette
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 * components stored in AVFrame.data[1] should be in the range 0..255.
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 * This is important as many custom PAL8 video codecs that were designed
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 * to run on the IBM VGA graphics adapter use 6-bit palette components.
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 */
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enum PixelFormat {
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    PIX_FMT_YUV420P,   ///< Planar YUV 4:2:0 (1 Cr & Cb sample per 2x2 Y samples)
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    PIX_FMT_YUV422,    ///< Packed pixel, Y0 Cb Y1 Cr 
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    PIX_FMT_RGB24,     ///< Packed pixel, 3 bytes per pixel, RGBRGB...
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    PIX_FMT_BGR24,     ///< Packed pixel, 3 bytes per pixel, BGRBGR...
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    PIX_FMT_YUV422P,   ///< Planar YUV 4:2:2 (1 Cr & Cb sample per 2x1 Y samples)
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    PIX_FMT_YUV444P,   ///< Planar YUV 4:4:4 (1 Cr & Cb sample per 1x1 Y samples)
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    PIX_FMT_RGBA32,    ///< Packed pixel, 4 bytes per pixel, BGRABGRA..., stored in cpu endianness
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    PIX_FMT_YUV410P,   ///< Planar YUV 4:1:0 (1 Cr & Cb sample per 4x4 Y samples)
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    PIX_FMT_YUV411P,   ///< Planar YUV 4:1:1 (1 Cr & Cb sample per 4x1 Y samples)
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    PIX_FMT_RGB565,    ///< always stored in cpu endianness 
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    PIX_FMT_RGB555,    ///< always stored in cpu endianness, most significant bit to 1 
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    PIX_FMT_GRAY8,
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    PIX_FMT_MONOWHITE, ///< 0 is white 
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    PIX_FMT_MONOBLACK, ///< 0 is black 
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    PIX_FMT_PAL8,      ///< 8 bit with RGBA palette 
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    PIX_FMT_YUVJ420P,  ///< Planar YUV 4:2:0 full scale (jpeg)
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    PIX_FMT_YUVJ422P,  ///< Planar YUV 4:2:2 full scale (jpeg)
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    PIX_FMT_YUVJ444P,  ///< Planar YUV 4:4:4 full scale (jpeg)
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    PIX_FMT_XVMC_MPEG2_MC,///< XVideo Motion Acceleration via common packet passing(xvmc_render.h)
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    PIX_FMT_XVMC_MPEG2_IDCT,
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    PIX_FMT_UYVY422,   ///< Packed pixel, Cb Y0 Cr Y1 
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    PIX_FMT_UYVY411,   ///< Packed pixel, Cb Y0 Y1 Cr Y2 Y3
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    PIX_FMT_NB,
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};
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/* currently unused, may be used if 24/32 bits samples ever supported */
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enum SampleFormat {
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    SAMPLE_FMT_S16 = 0,         ///< signed 16 bits 
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};
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/* in bytes */
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#define AVCODEC_MAX_AUDIO_FRAME_SIZE 131072
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/**
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 * Required number of additionally allocated bytes at the end of the input bitstream for decoding.
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 * this is mainly needed because some optimized bitstream readers read 
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 * 32 or 64 bit at once and could read over the end<br>
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 * Note, if the first 23 bits of the additional bytes are not 0 then damaged
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 * MPEG bitstreams could cause overread and segfault
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 */
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#define FF_INPUT_BUFFER_PADDING_SIZE 8
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/* motion estimation type, EPZS by default */
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enum Motion_Est_ID {
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    ME_ZERO = 1,
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    ME_FULL,
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    ME_LOG,
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    ME_PHODS,
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    ME_EPZS,
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    ME_X1
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};
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enum AVRounding {
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    AV_ROUND_ZERO     = 0, ///< round toward zero
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    AV_ROUND_INF      = 1, ///< round away from zero
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    AV_ROUND_DOWN     = 2, ///< round toward -infinity
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    AV_ROUND_UP       = 3, ///< round toward +infinity
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    AV_ROUND_NEAR_INF = 5, ///< round to nearest and halfway cases away from zero
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};
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typedef struct RcOverride{
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    int start_frame;
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    int end_frame;
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    int qscale; // if this is 0 then quality_factor will be used instead
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    float quality_factor;
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} RcOverride;
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/* only for ME compatiblity with old apps */
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extern int motion_estimation_method;
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#define FF_MAX_B_FRAMES 8
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/* encoding support
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   these flags can be passed in AVCodecContext.flags before initing 
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   Note: note not everything is supported yet 
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*/
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#define CODEC_FLAG_QSCALE 0x0002  ///< use fixed qscale 
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#define CODEC_FLAG_4MV    0x0004  ///< 4 MV per MB allowed / Advanced prediction for H263
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#define CODEC_FLAG_QPEL   0x0010  ///< use qpel MC 
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#define CODEC_FLAG_GMC    0x0020  ///< use GMC 
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#define CODEC_FLAG_MV0    0x0040  ///< always try a MB with MV=<0,0> 
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#define CODEC_FLAG_PART   0x0080  ///< use data partitioning 
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/* parent program gurantees that the input for b-frame containing streams is not written to 
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   for at least s->max_b_frames+1 frames, if this is not set than the input will be copied */
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#define CODEC_FLAG_INPUT_PRESERVED 0x0100
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#define CODEC_FLAG_PASS1 0x0200   ///< use internal 2pass ratecontrol in first  pass mode 
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#define CODEC_FLAG_PASS2 0x0400   ///< use internal 2pass ratecontrol in second pass mode 
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#define CODEC_FLAG_EXTERN_HUFF 0x1000 ///< use external huffman table (for mjpeg) 
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#define CODEC_FLAG_GRAY  0x2000   ///< only decode/encode grayscale 
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#define CODEC_FLAG_EMU_EDGE 0x4000///< dont draw edges 
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#define CODEC_FLAG_PSNR           0x8000 ///< error[?] variables will be set during encoding 
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#define CODEC_FLAG_TRUNCATED  0x00010000 /** input bitstream might be truncated at a random location instead 
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                                            of only at frame boundaries */
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#define CODEC_FLAG_NORMALIZE_AQP  0x00020000 ///< normalize adaptive quantization 
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#define CODEC_FLAG_INTERLACED_DCT 0x00040000 ///< use interlaced dct 
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#define CODEC_FLAG_LOW_DELAY      0x00080000 ///< force low delay
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#define CODEC_FLAG_ALT_SCAN       0x00100000 ///< use alternate scan 
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#define CODEC_FLAG_TRELLIS_QUANT  0x00200000 ///< use trellis quantization 
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#define CODEC_FLAG_GLOBAL_HEADER  0x00400000 ///< place global headers in extradata instead of every keyframe 
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#define CODEC_FLAG_BITEXACT       0x00800000 ///< use only bitexact stuff (except (i)dct) 
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/* Fx : Flag for h263+ extra options */
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#define CODEC_FLAG_H263P_AIC      0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction (remove this)
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#define CODEC_FLAG_AC_PRED        0x01000000 ///< H263 Advanced intra coding / MPEG4 AC prediction
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#define CODEC_FLAG_H263P_UMV      0x02000000 ///< Unlimited motion vector  
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#define CODEC_FLAG_CBP_RD         0x04000000 ///< use rate distortion optimization for cbp
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#define CODEC_FLAG_QP_RD          0x08000000 ///< use rate distortion optimization for qp selectioon
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#define CODEC_FLAG_H263P_AIV      0x00000008 ///< H263 Alternative inter vlc
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#define CODEC_FLAG_OBMC           0x00000001 ///< OBMC
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#define CODEC_FLAG_LOOP_FILTER    0x00000800 ///< loop filter
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#define CODEC_FLAG_H263P_SLICE_STRUCT 0x10000000
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#define CODEC_FLAG_INTERLACED_ME  0x20000000 ///< interlaced motion estimation
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#define CODEC_FLAG_SVCD_SCAN_OFFSET 0x40000000 ///< will reserve space for SVCD scan offset user data
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#define CODEC_FLAG_CLOSED_GOP     0x80000000
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#define CODEC_FLAG2_FAST          0x00000001 ///< allow non spec compliant speedup tricks
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#define CODEC_FLAG2_STRICT_GOP    0x00000002 ///< strictly enforce GOP size
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/* Unsupported options :
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 *                 Syntax Arithmetic coding (SAC)
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 *                 Reference Picture Selection
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 *                 Independant Segment Decoding */
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/* /Fx */
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/* codec capabilities */
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#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 ///< decoder can use draw_horiz_band callback 
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/**
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 * Codec uses get_buffer() for allocating buffers.
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 * direct rendering method 1
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 */
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#define CODEC_CAP_DR1             0x0002
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/* if 'parse_only' field is true, then avcodec_parse_frame() can be
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   used */
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#define CODEC_CAP_PARSE_ONLY      0x0004
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#define CODEC_CAP_TRUNCATED       0x0008
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/* codec can export data for HW decoding (XvMC) */
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#define CODEC_CAP_HWACCEL         0x0010
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/** codec has a non zero delay and needs to be feeded with NULL at the end to get the delayed data */
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#define CODEC_CAP_DELAY           0x0020
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//the following defines might change, so dont expect compatibility if u use them
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#define MB_TYPE_INTRA4x4   0x0001
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#define MB_TYPE_INTRA16x16 0x0002 //FIXME h264 specific
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#define MB_TYPE_INTRA_PCM  0x0004 //FIXME h264 specific
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#define MB_TYPE_16x16      0x0008
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#define MB_TYPE_16x8       0x0010
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#define MB_TYPE_8x16       0x0020
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#define MB_TYPE_8x8        0x0040
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#define MB_TYPE_INTERLACED 0x0080
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#define MB_TYPE_DIRECT2     0x0100 //FIXME
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#define MB_TYPE_ACPRED     0x0200
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#define MB_TYPE_GMC        0x0400
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#define MB_TYPE_SKIP       0x0800
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#define MB_TYPE_P0L0       0x1000
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#define MB_TYPE_P1L0       0x2000
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#define MB_TYPE_P0L1       0x4000
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#define MB_TYPE_P1L1       0x8000
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#define MB_TYPE_L0         (MB_TYPE_P0L0 | MB_TYPE_P1L0)
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#define MB_TYPE_L1         (MB_TYPE_P0L1 | MB_TYPE_P1L1)
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#define MB_TYPE_L0L1       (MB_TYPE_L0   | MB_TYPE_L1)
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#define MB_TYPE_QUANT      0x00010000
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#define MB_TYPE_CBP        0x00020000
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//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...)
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/**
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 * Pan Scan area.
358
 * this specifies the area which should be displayed. Note there may be multiple such areas for one frame
359
 */
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typedef struct AVPanScan{
361
    /**
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     * id.
363
     * - encoding: set by user.
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     * - decoding: set by lavc
365
     */
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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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    /**
377
     * position of the top left corner in 1/16 pel for up to 3 fields/frames.
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     * - encoding: set by user.
379
     * - decoding: set by lavc
380
     */
381
    int16_t position[3][2];
382
}AVPanScan;
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384
#define FF_COMMON_FRAME \
385
    /**\
386
     * pointer to the picture planes.\
387
     * this might be different from the first allocated byte\
388
     * - encoding: \
389
     * - decoding: \
390
     */\
391
    uint8_t *data[4];\
392
    int linesize[4];\
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    /**\
394
     * pointer to the first allocated byte of the picture. can be used in get_buffer/release_buffer\
395
     * this isnt used by lavc unless the default get/release_buffer() is used\
396
     * - encoding: \
397
     * - decoding: \
398
     */\
399
    uint8_t *base[4];\
400
    /**\
401
     * 1 -> keyframe, 0-> not\
402
     * - encoding: set by lavc\
403
     * - decoding: set by lavc\
404
     */\
405
    int key_frame;\
406
\
407
    /**\
408
     * picture type of the frame, see ?_TYPE below.\
409
     * - encoding: set by lavc for coded_picture (and set by user for input)\
410
     * - decoding: set by lavc\
411
     */\
412
    int pict_type;\
413
\
414
    /**\
415
     * presentation timestamp in AV_TIME_BASE (=micro seconds currently) (time when frame should be shown to user)\
416
     * if AV_NOPTS_VALUE then the frame_rate will be used as reference\
417
     * - encoding: MUST be set by user\
418
     * - decoding: set by lavc\
419
     */\
420
    int64_t pts;\
421
\
422
    /**\
423
     * picture number in bitstream order.\
424
     * - encoding: set by\
425
     * - decoding: set by lavc\
426
     */\
427
    int coded_picture_number;\
428
    /**\
429
     * picture number in display order.\
430
     * - encoding: set by\
431
     * - decoding: set by lavc\
432
     */\
433
    int display_picture_number;\
434
\
435
    /**\
436
     * quality (between 1 (good) and FF_LAMBDA_MAX (bad)) \
437
     * - encoding: set by lavc for coded_picture (and set by user for input)\
438
     * - decoding: set by lavc\
439
     */\
440
    int quality; \
441
\
442
    /**\
443
     * buffer age (1->was last buffer and dint change, 2->..., ...).\
444
     * set to INT_MAX if the buffer has not been used yet \
445
     * - encoding: unused\
446
     * - decoding: MUST be set by get_buffer()\
447
     */\
448
    int age;\
449
\
450
    /**\
451
     * is this picture used as reference\
452
     * - encoding: unused\
453
     * - decoding: set by lavc (before get_buffer() call))\
454
     */\
455
    int reference;\
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\
457
    /**\
458
     * QP table\
459
     * - encoding: unused\
460
     * - decoding: set by lavc\
461
     */\
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    int8_t *qscale_table;\
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    /**\
464
     * QP store stride\
465
     * - encoding: unused\
466
     * - decoding: set by lavc\
467
     */\
468
    int qstride;\
469
\
470
    /**\
471
     * mbskip_table[mb]>=1 if MB didnt change\
472
     * stride= mb_width = (width+15)>>4\
473
     * - encoding: unused\
474
     * - decoding: set by lavc\
475
     */\
476
    uint8_t *mbskip_table;\
477
\
478
    /**\
479
     * Motion vector table\
480
     * - encoding: set by user\
481
     * - decoding: set by lavc\
482
     */\
483
    int16_t (*motion_val[2])[2];\
484
\
485
    /**\
486
     * Macroblock type table\
487
     * mb_type_base + mb_width + 2\
488
     * - encoding: set by user\
489
     * - decoding: set by lavc\
490
     */\
491
    uint32_t *mb_type;\
492
\
493
    /**\
494
     * Macroblock size: (0->16x16, 1->8x8, 2-> 4x4, 3-> 2x2)\
495
     * - encoding: unused\
496
     * - decoding: set by lavc\
497
     */\
498
    uint8_t motion_subsample_log2;\
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\
500
    /**\
501
     * for some private data of the user\
502
     * - encoding: unused\
503
     * - decoding: set by user\
504
     */\
505
    void *opaque;\
506
\
507
    /**\
508
     * error\
509
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR\
510
     * - decoding: unused\
511
     */\
512
    uint64_t error[4];\
513
\
514
    /**\
515
     * type of the buffer (to keep track of who has to dealloc data[*])\
516
     * - encoding: set by the one who allocs it\
517
     * - decoding: set by the one who allocs it\
518
     * Note: user allocated (direct rendering) & internal buffers can not coexist currently\
519
     */\
520
    int type;\
521
    \
522
    /**\
523
     * when decoding, this signal how much the picture must be delayed.\
524
     * extra_delay = repeat_pict / (2*fps)\
525
     * - encoding: unused\
526
     * - decoding: set by lavc\
527
     */\
528
    int repeat_pict;\
529
    \
530
    /**\
531
     * \
532
     */\
533
    int qscale_type;\
534
    \
535
    /**\
536
     * The content of the picture is interlaced.\
537
     * - encoding: set by user\
538
     * - decoding: set by lavc (default 0)\
539
     */\
540
    int interlaced_frame;\
541
    \
542
    /**\
543
     * if the content is interlaced, is top field displayed first.\
544
     * - encoding: set by user\
545
     * - decoding: set by lavc\
546
     */\
547
    int top_field_first;\
548
    \
549
    /**\
550
     * Pan scan.\
551
     * - encoding: set by user\
552
     * - decoding: set by lavc\
553
     */\
554
    AVPanScan *pan_scan;\
555
    \
556
    /**\
557
     * tell user application that palette has changed from previous frame.\
558
     * - encoding: ??? (no palette-enabled encoder yet)\
559
     * - decoding: set by lavc (default 0)\
560
     */\
561
    int palette_has_changed;\
562
    \
563
    /**\
564
     * Codec suggestion on buffer type if != 0\
565
     * - encoding: unused\
566
     * - decoding: set by lavc (before get_buffer() call))\
567
     */\
568
    int buffer_hints;\
569
\
570
    /**\
571
     * DCT coeffitients\
572
     * - encoding: unused\
573
     * - decoding: set by lavc\
574
     */\
575
    short *dct_coeff;\
576
\
577
    /**\
578
     * Motion referece frame index\
579
     * - encoding: set by user\
580
     * - decoding: set by lavc\
581
     */\
582
    int8_t *ref_index[2];
583

    
584
#define FF_QSCALE_TYPE_MPEG1        0
585
#define FF_QSCALE_TYPE_MPEG2        1
586

    
587
#define FF_BUFFER_TYPE_INTERNAL 1
588
#define FF_BUFFER_TYPE_USER     2 ///< Direct rendering buffers (image is (de)allocated by user)
589
#define FF_BUFFER_TYPE_SHARED   4 ///< buffer from somewher else, dont dealloc image (data/base), all other tables are not shared
590
#define FF_BUFFER_TYPE_COPY     8 ///< just a (modified) copy of some other buffer, dont dealloc anything
591

    
592

    
593
#define FF_I_TYPE 1 // Intra
594
#define FF_P_TYPE 2 // Predicted
595
#define FF_B_TYPE 3 // Bi-dir predicted
596
#define FF_S_TYPE 4 // S(GMC)-VOP MPEG4
597
#define FF_SI_TYPE 5
598
#define FF_SP_TYPE 6
599

    
600
#define FF_BUFFER_HINTS_VALID    0x01 // Buffer hints value is meaningful (if 0 ignore)
601
#define FF_BUFFER_HINTS_READABLE 0x02 // Codec will read from buffer
602
#define FF_BUFFER_HINTS_PRESERVE 0x04 // User must not alter buffer content
603
#define FF_BUFFER_HINTS_REUSABLE 0x08 // Codec will reuse the buffer (update)
604

    
605
/**
606
 * Audio Video Frame.
607
 */
608
typedef struct AVFrame {
609
    FF_COMMON_FRAME
610
} AVFrame;
611

    
612
#define DEFAULT_FRAME_RATE_BASE 1001000
613

    
614
/**
615
 * Used by av_log
616
 */
617
typedef struct AVCLASS AVClass;
618
struct AVCLASS {
619
    const char* class_name;
620
    const char* (*item_name)(void*); /* actually passing a pointer to an AVCodecContext
621
                                        or AVFormatContext, which begin with an AVClass.
622
                                        Needed because av_log is in libavcodec and has no visibility
623
                                        of AVIn/OutputFormat */
624
};
625

    
626
/**
627
 * main external api structure.
628
 */
629
typedef struct AVCodecContext {
630
    /**
631
     * Info on struct for av_log
632
     * - set by avcodec_alloc_context
633
     */
634
    AVClass *av_class;
635
    /**
636
     * the average bitrate.
637
     * - encoding: set by user. unused for constant quantizer encoding
638
     * - decoding: set by lavc. 0 or some bitrate if this info is available in the stream 
639
     */
640
    int bit_rate;
641

    
642
    /**
643
     * number of bits the bitstream is allowed to diverge from the reference.
644
     *           the reference can be CBR (for CBR pass1) or VBR (for pass2)
645
     * - encoding: set by user. unused for constant quantizer encoding
646
     * - decoding: unused
647
     */
648
    int bit_rate_tolerance; 
649

    
650
    /**
651
     * CODEC_FLAG_*.
652
     * - encoding: set by user.
653
     * - decoding: set by user.
654
     */
655
    int flags;
656

    
657
    /**
658
     * some codecs needs additionnal format info. It is stored here
659
     * - encoding: set by user. 
660
     * - decoding: set by lavc. (FIXME is this ok?)
661
     */
662
    int sub_id;
663

    
664
    /**
665
     * motion estimation algorithm used for video coding.
666
     * - encoding: MUST be set by user.
667
     * - decoding: unused
668
     */
669
    int me_method;
670

    
671
    /**
672
     * some codecs need / can use extra-data like huffman tables.
673
     * mjpeg: huffman tables
674
     * rv10: additional flags
675
     * mpeg4: global headers (they can be in the bitstream or here)
676
     * the allocated memory should be FF_INPUT_BUFFER_PADDING_SIZE bytes larger
677
     * then extradata_size to avoid prolems if its read with the bitstream reader
678
     * - encoding: set/allocated/freed by lavc.
679
     * - decoding: set/allocated/freed by user.
680
     */
681
    void *extradata;
682
    int extradata_size;
683
    
684
    /* video only */
685
    /**
686
     * frames per sec multiplied by frame_rate_base.
687
     * for variable fps this is the precission, so if the timestamps 
688
     * can be specified in msec precssion then this is 1000*frame_rate_base
689
     * - encoding: MUST be set by user
690
     * - decoding: set by lavc. 0 or the frame_rate if available
691
     */
692
    int frame_rate;
693
    
694
    /**
695
     * picture width / height.
696
     * - encoding: MUST be set by user. 
697
     * - decoding: set by lavc.
698
     * Note, for compatibility its possible to set this instead of 
699
     * coded_width/height before decoding
700
     */
701
    int width, height;
702
    
703
#define FF_ASPECT_EXTENDED 15
704

    
705
    /**
706
     * the number of pictures in a group of pitures, or 0 for intra_only.
707
     * - encoding: set by user.
708
     * - decoding: unused
709
     */
710
    int gop_size;
711

    
712
    /**
713
     * pixel format, see PIX_FMT_xxx.
714
     * - encoding: FIXME: used by ffmpeg to decide whether an pix_fmt
715
     *                    conversion is in order. This only works for
716
     *                    codecs with one supported pix_fmt, we should
717
     *                    do something for a generic case as well.
718
     * - decoding: set by lavc.
719
     */
720
    enum PixelFormat pix_fmt;
721
 
722
    /**
723
     * Frame rate emulation. If not zero lower layer (i.e. format handler) 
724
     * has to read frames at native frame rate.
725
     * - encoding: set by user.
726
     * - decoding: unused.
727
     */
728
    int rate_emu;
729
       
730
    /**
731
     * if non NULL, 'draw_horiz_band' is called by the libavcodec
732
     * decoder to draw an horizontal band. It improve cache usage. Not
733
     * all codecs can do that. You must check the codec capabilities
734
     * before
735
     * - encoding: unused
736
     * - decoding: set by user.
737
     * @param height the height of the slice
738
     * @param y the y position of the slice
739
     * @param type 1->top field, 2->bottom field, 3->frame
740
     * @param offset offset into the AVFrame.data from which the slice should be read
741
     */
742
    void (*draw_horiz_band)(struct AVCodecContext *s,
743
                            const AVFrame *src, int offset[4],
744
                            int y, int type, int height);
745

    
746
    /* audio only */
747
    int sample_rate; ///< samples per sec 
748
    int channels;
749
    int sample_fmt;  ///< sample format, currenly unused 
750

    
751
    /* the following data should not be initialized */
752
    int frame_size;     ///< in samples, initialized when calling 'init' 
753
    int frame_number;   ///< audio or video frame number 
754
    int real_pict_num;  ///< returns the real picture number of previous encoded frame 
755
    
756
    /**
757
     * number of frames the decoded output will be delayed relative to 
758
     * the encoded input.
759
     * - encoding: set by lavc.
760
     * - decoding: unused
761
     */
762
    int delay;
763
    
764
    /* - encoding parameters */
765
    float qcompress;  ///< amount of qscale change between easy & hard scenes (0.0-1.0)
766
    float qblur;      ///< amount of qscale smoothing over time (0.0-1.0) 
767
    
768
    /**
769
     * minimum quantizer.
770
     * - encoding: set by user.
771
     * - decoding: unused
772
     */
773
    int qmin;
774

    
775
    /**
776
     * maximum quantizer.
777
     * - encoding: set by user.
778
     * - decoding: unused
779
     */
780
    int qmax;
781

    
782
    /**
783
     * maximum quantizer difference etween frames.
784
     * - encoding: set by user.
785
     * - decoding: unused
786
     */
787
    int max_qdiff;
788

    
789
    /**
790
     * maximum number of b frames between non b frames.
791
     * note: the output will be delayed by max_b_frames+1 relative to the input
792
     * - encoding: set by user.
793
     * - decoding: unused
794
     */
795
    int max_b_frames;
796

    
797
    /**
798
     * qscale factor between ip and b frames.
799
     * - encoding: set by user.
800
     * - decoding: unused
801
     */
802
    float b_quant_factor;
803
    
804
    /** obsolete FIXME remove */
805
    int rc_strategy;
806
    int b_frame_strategy;
807

    
808
    /**
809
     * hurry up amount.
810
     * - encoding: unused
811
     * - decoding: set by user. 1-> skip b frames, 2-> skip idct/dequant too, 5-> skip everything except header
812
     */
813
    int hurry_up;
814
    
815
    struct AVCodec *codec;
816
    
817
    void *priv_data;
818

    
819
    /* unused, FIXME remove*/
820
    int rtp_mode;
821
    
822
    int rtp_payload_size;   /* The size of the RTP payload, the coder will  */
823
                            /* do it's best to deliver a chunk with size    */
824
                            /* below rtp_payload_size, the chunk will start */
825
                            /* with a start code on some codecs like H.263  */
826
                            /* This doesn't take account of any particular  */
827
                            /* headers inside the transmited RTP payload    */
828

    
829
    
830
    /* The RTP callcack: This function is called  */
831
    /* every time the encoder as a packet to send */
832
    /* Depends on the encoder if the data starts  */
833
    /* with a Start Code (it should) H.263 does   */
834
    void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int packet_number); 
835

    
836
    /* statistics, used for 2-pass encoding */
837
    int mv_bits;
838
    int header_bits;
839
    int i_tex_bits;
840
    int p_tex_bits;
841
    int i_count;
842
    int p_count;
843
    int skip_count;
844
    int misc_bits;
845
    
846
    /**
847
     * number of bits used for the previously encoded frame.
848
     * - encoding: set by lavc
849
     * - decoding: unused
850
     */
851
    int frame_bits;
852

    
853
    /**
854
     * private data of the user, can be used to carry app specific stuff.
855
     * - encoding: set by user
856
     * - decoding: set by user
857
     */
858
    void *opaque;
859

    
860
    char codec_name[32];
861
    enum CodecType codec_type; /* see CODEC_TYPE_xxx */
862
    enum CodecID codec_id; /* see CODEC_ID_xxx */
863
    
864
    /**
865
     * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
866
     * this is used to workaround some encoder bugs
867
     * - encoding: set by user, if not then the default based on codec_id will be used
868
     * - decoding: set by user, will be converted to upper case by lavc during init
869
     */
870
    unsigned int codec_tag;
871
    
872
    /**
873
     * workaround bugs in encoders which sometimes cannot be detected automatically.
874
     * - encoding: unused
875
     * - decoding: set by user
876
     */
877
    int workaround_bugs;
878
#define FF_BUG_AUTODETECT       1  ///< autodetection
879
#define FF_BUG_OLD_MSMPEG4      2
880
#define FF_BUG_XVID_ILACE       4
881
#define FF_BUG_UMP4             8
882
#define FF_BUG_NO_PADDING       16
883
#define FF_BUG_AMV              32
884
#define FF_BUG_AC_VLC           0  ///< will be removed, libavcodec can now handle these non compliant files by default
885
#define FF_BUG_QPEL_CHROMA      64
886
#define FF_BUG_STD_QPEL         128
887
#define FF_BUG_QPEL_CHROMA2     256
888
#define FF_BUG_DIRECT_BLOCKSIZE 512
889
#define FF_BUG_EDGE             1024
890
#define FF_BUG_HPEL_CHROMA      2048
891
#define FF_BUG_DC_CLIP          4096
892
//#define FF_BUG_FAKE_SCALABILITY 16 //autodetection should work 100%
893
        
894
    /**
895
     * luma single coeff elimination threshold.
896
     * - encoding: set by user
897
     * - decoding: unused
898
     */
899
    int luma_elim_threshold;
900
    
901
    /**
902
     * chroma single coeff elimination threshold.
903
     * - encoding: set by user
904
     * - decoding: unused
905
     */
906
    int chroma_elim_threshold;
907
    
908
    /**
909
     * strictly follow the std (MPEG4, ...).
910
     * - encoding: set by user
911
     * - decoding: unused
912
     */
913
    int strict_std_compliance;
914
    
915
    /**
916
     * qscale offset between ip and b frames.
917
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
918
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
919
     * - encoding: set by user.
920
     * - decoding: unused
921
     */
922
    float b_quant_offset;
923
    
924
    /**
925
     * error resilience higher values will detect more errors but may missdetect
926
     * some more or less valid parts as errors.
927
     * - encoding: unused
928
     * - decoding: set by user
929
     */
930
    int error_resilience;
931
#define FF_ER_CAREFULL        1
932
#define FF_ER_COMPLIANT       2
933
#define FF_ER_AGGRESSIVE      3
934
#define FF_ER_VERY_AGGRESSIVE 4
935
    
936
    /**
937
     * called at the beginning of each frame to get a buffer for it.
938
     * if pic.reference is set then the frame will be read later by lavc
939
     * avcodec_align_dimensions() should be used to find the required width and
940
     * height, as they normally need to be rounded up to the next multiple of 16
941
     * - encoding: unused
942
     * - decoding: set by lavc, user can override
943
     */
944
    int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);
945
    
946
    /**
947
     * called to release buffers which where allocated with get_buffer.
948
     * a released buffer can be reused in get_buffer()
949
     * pic.data[*] must be set to NULL
950
     * - encoding: unused
951
     * - decoding: set by lavc, user can override
952
     */
953
    void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);
954

    
955
    /**
956
     * if 1 the stream has a 1 frame delay during decoding.
957
     * - encoding: set by lavc
958
     * - decoding: set by lavc
959
     */
960
    int has_b_frames;
961
    
962
    int block_align; ///< used by some WAV based audio codecs
963
    
964
    int parse_only; /* - decoding only: if true, only parsing is done
965
                       (function avcodec_parse_frame()). The frame
966
                       data is returned. Only MPEG codecs support this now. */
967
    
968
    /**
969
     * 0-> h263 quant 1-> mpeg quant.
970
     * - encoding: set by user.
971
     * - decoding: unused
972
     */
973
    int mpeg_quant;
974
    
975
    /**
976
     * pass1 encoding statistics output buffer.
977
     * - encoding: set by lavc
978
     * - decoding: unused
979
     */
980
    char *stats_out;
981
    
982
    /**
983
     * pass2 encoding statistics input buffer.
984
     * concatenated stuff from stats_out of pass1 should be placed here
985
     * - encoding: allocated/set/freed by user
986
     * - decoding: unused
987
     */
988
    char *stats_in;
989
    
990
    /**
991
     * ratecontrol qmin qmax limiting method.
992
     * 0-> clipping, 1-> use a nice continous function to limit qscale wthin qmin/qmax
993
     * - encoding: set by user.
994
     * - decoding: unused
995
     */
996
    float rc_qsquish;
997

    
998
    float rc_qmod_amp;
999
    int rc_qmod_freq;
1000
    
1001
    /**
1002
     * ratecontrol override, see RcOverride.
1003
     * - encoding: allocated/set/freed by user.
1004
     * - decoding: unused
1005
     */
1006
    RcOverride *rc_override;
1007
    int rc_override_count;
1008
    
1009
    /**
1010
     * rate control equation.
1011
     * - encoding: set by user
1012
     * - decoding: unused
1013
     */
1014
    char *rc_eq;
1015
    
1016
    /**
1017
     * maximum bitrate.
1018
     * - encoding: set by user.
1019
     * - decoding: unused
1020
     */
1021
    int rc_max_rate;
1022
    
1023
    /**
1024
     * minimum bitrate.
1025
     * - encoding: set by user.
1026
     * - decoding: unused
1027
     */
1028
    int rc_min_rate;
1029
    
1030
    /**
1031
     * decoder bitstream buffer size.
1032
     * - encoding: set by user.
1033
     * - decoding: unused
1034
     */
1035
    int rc_buffer_size;
1036
    float rc_buffer_aggressivity;
1037

    
1038
    /**
1039
     * qscale factor between p and i frames.
1040
     * if > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset)
1041
     * if < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset)
1042
     * - encoding: set by user.
1043
     * - decoding: unused
1044
     */
1045
    float i_quant_factor;
1046
    
1047
    /**
1048
     * qscale offset between p and i frames.
1049
     * - encoding: set by user.
1050
     * - decoding: unused
1051
     */
1052
    float i_quant_offset;
1053
    
1054
    /**
1055
     * initial complexity for pass1 ratecontrol.
1056
     * - encoding: set by user.
1057
     * - decoding: unused
1058
     */
1059
    float rc_initial_cplx;
1060

    
1061
    /**
1062
     * dct algorithm, see FF_DCT_* below.
1063
     * - encoding: set by user
1064
     * - decoding: unused
1065
     */
1066
    int dct_algo;
1067
#define FF_DCT_AUTO    0
1068
#define FF_DCT_FASTINT 1
1069
#define FF_DCT_INT     2
1070
#define FF_DCT_MMX     3
1071
#define FF_DCT_MLIB    4
1072
#define FF_DCT_ALTIVEC 5
1073
#define FF_DCT_FAAN    6
1074
    
1075
    /**
1076
     * luminance masking (0-> disabled).
1077
     * - encoding: set by user
1078
     * - decoding: unused
1079
     */
1080
    float lumi_masking;
1081
    
1082
    /**
1083
     * temporary complexity masking (0-> disabled).
1084
     * - encoding: set by user
1085
     * - decoding: unused
1086
     */
1087
    float temporal_cplx_masking;
1088
    
1089
    /**
1090
     * spatial complexity masking (0-> disabled).
1091
     * - encoding: set by user
1092
     * - decoding: unused
1093
     */
1094
    float spatial_cplx_masking;
1095
    
1096
    /**
1097
     * p block masking (0-> disabled).
1098
     * - encoding: set by user
1099
     * - decoding: unused
1100
     */
1101
    float p_masking;
1102

    
1103
    /**
1104
     * darkness masking (0-> disabled).
1105
     * - encoding: set by user
1106
     * - decoding: unused
1107
     */
1108
    float dark_masking;
1109
    
1110
    
1111
    /* for binary compatibility */
1112
    int unused;
1113
    
1114
    /**
1115
     * idct algorithm, see FF_IDCT_* below.
1116
     * - encoding: set by user
1117
     * - decoding: set by user
1118
     */
1119
    int idct_algo;
1120
#define FF_IDCT_AUTO         0
1121
#define FF_IDCT_INT          1
1122
#define FF_IDCT_SIMPLE       2
1123
#define FF_IDCT_SIMPLEMMX    3
1124
#define FF_IDCT_LIBMPEG2MMX  4
1125
#define FF_IDCT_PS2          5
1126
#define FF_IDCT_MLIB         6
1127
#define FF_IDCT_ARM          7
1128
#define FF_IDCT_ALTIVEC      8
1129
#define FF_IDCT_SH4          9
1130
#define FF_IDCT_SIMPLEARM    10
1131
#define FF_IDCT_H264         11
1132

    
1133
    /**
1134
     * slice count.
1135
     * - encoding: set by lavc
1136
     * - decoding: set by user (or 0)
1137
     */
1138
    int slice_count;
1139
    /**
1140
     * slice offsets in the frame in bytes.
1141
     * - encoding: set/allocated by lavc
1142
     * - decoding: set/allocated by user (or NULL)
1143
     */
1144
    int *slice_offset;
1145

    
1146
    /**
1147
     * error concealment flags.
1148
     * - encoding: unused
1149
     * - decoding: set by user
1150
     */
1151
    int error_concealment;
1152
#define FF_EC_GUESS_MVS   1
1153
#define FF_EC_DEBLOCK     2
1154

    
1155
    /**
1156
     * dsp_mask could be add used to disable unwanted CPU features
1157
     * CPU features (i.e. MMX, SSE. ...)
1158
     *
1159
     * with FORCE flag you may instead enable given CPU features
1160
     * (Dangerous: usable in case of misdetection, improper usage however will
1161
     * result into program crash)
1162
     */
1163
    unsigned dsp_mask;
1164
#define FF_MM_FORCE        0x80000000 /* force usage of selected flags (OR) */
1165
    /* lower 16 bits - CPU features */
1166
#ifdef HAVE_MMX
1167
#define FF_MM_MMX        0x0001 /* standard MMX */
1168
#define FF_MM_3DNOW        0x0004 /* AMD 3DNOW */
1169
#define FF_MM_MMXEXT        0x0002 /* SSE integer functions or AMD MMX ext */
1170
#define FF_MM_SSE        0x0008 /* SSE functions */
1171
#define FF_MM_SSE2        0x0010 /* PIV SSE2 functions */
1172
#endif /* HAVE_MMX */
1173

    
1174
    /**
1175
     * bits per sample/pixel from the demuxer (needed for huffyuv).
1176
     * - encoding: set by lavc
1177
     * - decoding: set by user
1178
     */
1179
     int bits_per_sample;
1180
    
1181
    /**
1182
     * prediction method (needed for huffyuv).
1183
     * - encoding: set by user
1184
     * - decoding: unused
1185
     */
1186
     int prediction_method;
1187
#define FF_PRED_LEFT   0
1188
#define FF_PRED_PLANE  1
1189
#define FF_PRED_MEDIAN 2
1190
    
1191
    /**
1192
     * sample aspect ratio (0 if unknown).
1193
     * numerator and denominator must be relative prime and smaller then 256 for some video standards
1194
     * - encoding: set by user.
1195
     * - decoding: set by lavc.
1196
     */
1197
    AVRational sample_aspect_ratio;
1198

    
1199
    /**
1200
     * the picture in the bitstream.
1201
     * - encoding: set by lavc
1202
     * - decoding: set by lavc
1203
     */
1204
    AVFrame *coded_frame;
1205

    
1206
    /**
1207
     * debug.
1208
     * - encoding: set by user.
1209
     * - decoding: set by user.
1210
     */
1211
    int debug;
1212
#define FF_DEBUG_PICT_INFO 1
1213
#define FF_DEBUG_RC        2
1214
#define FF_DEBUG_BITSTREAM 4
1215
#define FF_DEBUG_MB_TYPE   8
1216
#define FF_DEBUG_QP        16
1217
#define FF_DEBUG_MV        32
1218
#define FF_DEBUG_DCT_COEFF 0x00000040
1219
#define FF_DEBUG_SKIP      0x00000080
1220
#define FF_DEBUG_STARTCODE 0x00000100
1221
#define FF_DEBUG_PTS       0x00000200
1222
#define FF_DEBUG_ER        0x00000400
1223
#define FF_DEBUG_MMCO      0x00000800
1224
#define FF_DEBUG_BUGS      0x00001000
1225
#define FF_DEBUG_VIS_QP    0x00002000
1226
#define FF_DEBUG_VIS_MB_TYPE 0x00004000
1227
    
1228
    /**
1229
     * debug.
1230
     * - encoding: set by user.
1231
     * - decoding: set by user.
1232
     */
1233
    int debug_mv;
1234
#define FF_DEBUG_VIS_MV_P_FOR  0x00000001 //visualize forward predicted MVs of P frames
1235
#define FF_DEBUG_VIS_MV_B_FOR  0x00000002 //visualize forward predicted MVs of B frames
1236
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames
1237

    
1238
    /**
1239
     * error.
1240
     * - encoding: set by lavc if flags&CODEC_FLAG_PSNR
1241
     * - decoding: unused
1242
     */
1243
    uint64_t error[4];
1244
    
1245
    /**
1246
     * minimum MB quantizer.
1247
     * - encoding: set by user.
1248
     * - decoding: unused
1249
     */
1250
    int mb_qmin;
1251

    
1252
    /**
1253
     * maximum MB quantizer.
1254
     * - encoding: set by user.
1255
     * - decoding: unused
1256
     */
1257
    int mb_qmax;
1258
    
1259
    /**
1260
     * motion estimation compare function.
1261
     * - encoding: set by user.
1262
     * - decoding: unused
1263
     */
1264
    int me_cmp;
1265
    /**
1266
     * subpixel motion estimation compare function.
1267
     * - encoding: set by user.
1268
     * - decoding: unused
1269
     */
1270
    int me_sub_cmp;
1271
    /**
1272
     * macroblock compare function (not supported yet).
1273
     * - encoding: set by user.
1274
     * - decoding: unused
1275
     */
1276
    int mb_cmp;
1277
    /**
1278
     * interlaced dct compare function
1279
     * - encoding: set by user.
1280
     * - decoding: unused
1281
     */
1282
    int ildct_cmp;
1283
#define FF_CMP_SAD  0
1284
#define FF_CMP_SSE  1
1285
#define FF_CMP_SATD 2
1286
#define FF_CMP_DCT  3
1287
#define FF_CMP_PSNR 4
1288
#define FF_CMP_BIT  5
1289
#define FF_CMP_RD   6
1290
#define FF_CMP_ZERO 7
1291
#define FF_CMP_VSAD 8
1292
#define FF_CMP_VSSE 9
1293
#define FF_CMP_NSSE 10
1294
#define FF_CMP_W53  11
1295
#define FF_CMP_W97  12
1296
#define FF_CMP_CHROMA 256
1297
    
1298
    /**
1299
     * ME diamond size & shape.
1300
     * - encoding: set by user.
1301
     * - decoding: unused
1302
     */
1303
    int dia_size;
1304

    
1305
    /**
1306
     * amount of previous MV predictors (2a+1 x 2a+1 square).
1307
     * - encoding: set by user.
1308
     * - decoding: unused
1309
     */
1310
    int last_predictor_count;
1311

    
1312
    /**
1313
     * pre pass for motion estimation.
1314
     * - encoding: set by user.
1315
     * - decoding: unused
1316
     */
1317
    int pre_me;
1318

    
1319
    /**
1320
     * motion estimation pre pass compare function.
1321
     * - encoding: set by user.
1322
     * - decoding: unused
1323
     */
1324
    int me_pre_cmp;
1325

    
1326
    /**
1327
     * ME pre pass diamond size & shape.
1328
     * - encoding: set by user.
1329
     * - decoding: unused
1330
     */
1331
    int pre_dia_size;
1332

    
1333
    /**
1334
     * subpel ME quality.
1335
     * - encoding: set by user.
1336
     * - decoding: unused
1337
     */
1338
    int me_subpel_quality;
1339

    
1340
    /**
1341
     * callback to negotiate the pixelFormat.
1342
     * @param fmt is the list of formats which are supported by the codec,
1343
     * its terminated by -1 as 0 is a valid format, the formats are ordered by quality
1344
     * the first is allways the native one
1345
     * @return the choosen format
1346
     * - encoding: unused
1347
     * - decoding: set by user, if not set then the native format will always be choosen
1348
     */
1349
    enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);
1350

    
1351
    /**
1352
     * DTG active format information (additionnal aspect ratio
1353
     * information only used in DVB MPEG2 transport streams). 0 if
1354
     * not set.
1355
     * 
1356
     * - encoding: unused.
1357
     * - decoding: set by decoder 
1358
     */
1359
    int dtg_active_format;
1360
#define FF_DTG_AFD_SAME         8
1361
#define FF_DTG_AFD_4_3          9
1362
#define FF_DTG_AFD_16_9         10
1363
#define FF_DTG_AFD_14_9         11
1364
#define FF_DTG_AFD_4_3_SP_14_9  13
1365
#define FF_DTG_AFD_16_9_SP_14_9 14
1366
#define FF_DTG_AFD_SP_4_3       15
1367

    
1368
    /**
1369
     * Maximum motion estimation search range in subpel units.
1370
     * if 0 then no limit
1371
     * 
1372
     * - encoding: set by user.
1373
     * - decoding: unused.
1374
     */
1375
    int me_range;
1376

    
1377
    /**
1378
     * frame_rate_base.
1379
     * for variable fps this is 1
1380
     * - encoding: set by user.
1381
     * - decoding: set by lavc.
1382
     * @todo move this after frame_rate
1383
     */
1384

    
1385
    int frame_rate_base;
1386
    /**
1387
     * intra quantizer bias.
1388
     * - encoding: set by user.
1389
     * - decoding: unused
1390
     */
1391
    int intra_quant_bias;
1392
#define FF_DEFAULT_QUANT_BIAS 999999
1393
    
1394
    /**
1395
     * inter quantizer bias.
1396
     * - encoding: set by user.
1397
     * - decoding: unused
1398
     */
1399
    int inter_quant_bias;
1400

    
1401
    /**
1402
     * color table ID.
1403
     * - encoding: unused.
1404
     * - decoding: which clrtable should be used for 8bit RGB images
1405
     *             table have to be stored somewhere FIXME
1406
     */
1407
    int color_table_id;
1408
    
1409
    /**
1410
     * internal_buffer count. 
1411
     * Dont touch, used by lavc default_get_buffer()
1412
     */
1413
    int internal_buffer_count;
1414
    
1415
    /**
1416
     * internal_buffers. 
1417
     * Dont touch, used by lavc default_get_buffer()
1418
     */
1419
    void *internal_buffer;
1420

    
1421
#define FF_LAMBDA_SHIFT 7
1422
#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
1423
#define FF_QP2LAMBDA 118 ///< factor to convert from H.263 QP to lambda
1424
#define FF_LAMBDA_MAX (256*128-1)
1425

    
1426
#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove
1427
    /**
1428
     * global quality for codecs which cannot change it per frame.
1429
     * this should be proportional to MPEG1/2/4 qscale.
1430
     * - encoding: set by user.
1431
     * - decoding: unused
1432
     */
1433
    int global_quality;
1434
    
1435
#define FF_CODER_TYPE_VLC   0
1436
#define FF_CODER_TYPE_AC    1
1437
    /**
1438
     * coder type
1439
     * - encoding: set by user.
1440
     * - decoding: unused
1441
     */
1442
    int coder_type;
1443

    
1444
    /**
1445
     * context model
1446
     * - encoding: set by user.
1447
     * - decoding: unused
1448
     */
1449
    int context_model;
1450
    
1451
    /**
1452
     * slice flags
1453
     * - encoding: unused
1454
     * - decoding: set by user.
1455
     */
1456
    int slice_flags;
1457
#define SLICE_FLAG_CODED_ORDER    0x0001 ///< draw_horiz_band() is called in coded order instead of display
1458
#define SLICE_FLAG_ALLOW_FIELD    0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics)
1459
#define SLICE_FLAG_ALLOW_PLANE    0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1)
1460

    
1461
    /**
1462
     * XVideo Motion Acceleration
1463
     * - encoding: forbidden
1464
     * - decoding: set by decoder
1465
     */
1466
    int xvmc_acceleration;
1467
    
1468
    /**
1469
     * macroblock decision mode
1470
     * - encoding: set by user.
1471
     * - decoding: unused
1472
     */
1473
    int mb_decision;
1474
#define FF_MB_DECISION_SIMPLE 0        ///< uses mb_cmp
1475
#define FF_MB_DECISION_BITS   1        ///< chooses the one which needs the fewest bits
1476
#define FF_MB_DECISION_RD     2        ///< rate distoration
1477

    
1478
    /**
1479
     * custom intra quantization matrix
1480
     * - encoding: set by user, can be NULL
1481
     * - decoding: set by lavc
1482
     */
1483
    uint16_t *intra_matrix;
1484

    
1485
    /**
1486
     * custom inter quantization matrix
1487
     * - encoding: set by user, can be NULL
1488
     * - decoding: set by lavc
1489
     */
1490
    uint16_t *inter_matrix;
1491
    
1492
    /**
1493
     * fourcc from the AVI stream header (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A').
1494
     * this is used to workaround some encoder bugs
1495
     * - encoding: unused
1496
     * - decoding: set by user, will be converted to upper case by lavc during init
1497
     */
1498
    unsigned int stream_codec_tag;
1499

    
1500
    /**
1501
     * scene change detection threshold.
1502
     * 0 is default, larger means fewer detected scene changes
1503
     * - encoding: set by user.
1504
     * - decoding: unused
1505
     */
1506
    int scenechange_threshold;
1507

    
1508
    /**
1509
     * minimum lagrange multipler
1510
     * - encoding: set by user.
1511
     * - decoding: unused
1512
     */
1513
    int lmin;
1514

    
1515
    /**
1516
     * maximum lagrange multipler
1517
     * - encoding: set by user.
1518
     * - decoding: unused
1519
     */
1520
    int lmax;
1521

    
1522
    /**
1523
     * Palette control structure
1524
     * - encoding: ??? (no palette-enabled encoder yet)
1525
     * - decoding: set by user.
1526
     */
1527
    struct AVPaletteControl *palctrl;
1528

    
1529
    /**
1530
     * noise reduction strength
1531
     * - encoding: set by user.
1532
     * - decoding: unused
1533
     */
1534
    int noise_reduction;
1535
    
1536
    /**
1537
     * called at the beginning of a frame to get cr buffer for it.
1538
     * buffer type (size, hints) must be the same. lavc won't check it.
1539
     * lavc will pass previous buffer in pic, function should return
1540
     * same buffer or new buffer with old frame "painted" into it.
1541
     * if pic.data[0] == NULL must behave like get_buffer().
1542
     * - encoding: unused
1543
     * - decoding: set by lavc, user can override
1544
     */
1545
    int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);
1546

    
1547
    /**
1548
     * number of bits which should be loaded into the rc buffer before decoding starts
1549
     * - encoding: set by user.
1550
     * - decoding: unused
1551
     */
1552
    int rc_initial_buffer_occupancy;
1553

    
1554
    /**
1555
     *
1556
     * - encoding: set by user.
1557
     * - decoding: unused
1558
     */
1559
    int inter_threshold;
1560

    
1561
    /**
1562
     * CODEC_FLAG2_*.
1563
     * - encoding: set by user.
1564
     * - decoding: set by user.
1565
     */
1566
    int flags2;
1567

    
1568
    /**
1569
     * simulates errors in the bitstream to test error concealment.
1570
     * - encoding: set by user.
1571
     * - decoding: unused.
1572
     */
1573
    int error_rate;
1574
    
1575
    /**
1576
     * MP3 antialias algorithm, see FF_AA_* below.
1577
     * - encoding: unused
1578
     * - decoding: set by user
1579
     */
1580
    int antialias_algo;
1581
#define FF_AA_AUTO    0
1582
#define FF_AA_FASTINT 1 //not implemented yet
1583
#define FF_AA_INT     2
1584
#define FF_AA_FLOAT   3
1585
    /**
1586
     * Quantizer noise shaping.
1587
     * - encoding: set by user
1588
     * - decoding: unused
1589
     */
1590
    int quantizer_noise_shaping;
1591

    
1592
    /**
1593
     * Thread count.
1594
     * is used to decide how many independant tasks should be passed to execute()
1595
     * - encoding: set by user
1596
     * - decoding: set by user
1597
     */
1598
    int thread_count;
1599
    
1600
    /**
1601
     * the codec may call this to execute several independant things. it will return only after
1602
     * finishing all tasks, the user may replace this with some multithreaded implementation, the
1603
     * default implementation will execute the parts serially
1604
     * @param count the number of things to execute
1605
     * - encoding: set by lavc, user can override
1606
     * - decoding: set by lavc, user can override
1607
     */
1608
    int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void **arg2, int *ret, int count);
1609
    
1610
    /**
1611
     * Thread opaque.
1612
     * can be used by execute() to store some per AVCodecContext stuff.
1613
     * - encoding: set by execute()
1614
     * - decoding: set by execute()
1615
     */
1616
    void *thread_opaque;
1617

    
1618
    /**
1619
     * Motion estimation threshold. under which no motion estimation is 
1620
     * performed, but instead the user specified motion vectors are used
1621
     * 
1622
     * - encoding: set by user
1623
     * - decoding: unused
1624
     */
1625
     int me_threshold;
1626

    
1627
    /**
1628
     * Macroblock threshold. under which the user specified macroblock types will be used
1629
     * - encoding: set by user
1630
     * - decoding: unused
1631
     */
1632
     int mb_threshold;
1633

    
1634
    /**
1635
     * precision of the intra dc coefficient - 8.
1636
     * - encoding: set by user
1637
     * - decoding: unused
1638
     */
1639
     int intra_dc_precision;
1640

    
1641
    /**
1642
     * noise vs. sse weight for the nsse comparsion function.
1643
     * - encoding: set by user
1644
     * - decoding: unused
1645
     */
1646
     int nsse_weight;
1647

    
1648
    /**
1649
     * number of macroblock rows at the top which are skiped.
1650
     * - encoding: unused
1651
     * - decoding: set by user
1652
     */
1653
     int skip_top;
1654

    
1655
    /**
1656
     * number of macroblock rows at the bottom which are skiped.
1657
     * - encoding: unused
1658
     * - decoding: set by user
1659
     */
1660
     int skip_bottom;
1661

    
1662
    /**
1663
     * profile
1664
     * - encoding: set by user
1665
     * - decoding: set by lavc
1666
     */
1667
     int profile;
1668
#define FF_PROFILE_UNKNOWN -99
1669

    
1670
    /**
1671
     * level
1672
     * - encoding: set by user
1673
     * - decoding: set by lavc
1674
     */
1675
     int level;
1676
#define FF_LEVEL_UNKNOWN -99
1677

    
1678
    /**
1679
     * low resolution decoding. 1-> 1/2 size, 2->1/4 size
1680
     * - encoding: unused
1681
     * - decoding: set by user
1682
     */
1683
     int lowres;
1684

    
1685
    /**
1686
     * bitsream width / height. may be different from width/height if lowres
1687
     * or other things are used
1688
     * - encoding: unused
1689
     * - decoding: set by user before init if known, codec should override / dynamically change if needed
1690
     */
1691
    int coded_width, coded_height;
1692

    
1693
    /**
1694
     * frame skip threshold
1695
     * - encoding: set by user
1696
     * - decoding: unused
1697
     */
1698
    int frame_skip_threshold;
1699

    
1700
    /**
1701
     * frame skip factor
1702
     * - encoding: set by user
1703
     * - decoding: unused
1704
     */
1705
    int frame_skip_factor;
1706
} AVCodecContext;
1707

    
1708

    
1709
/**
1710
 * AVOption.
1711
 */
1712
typedef struct AVOption {
1713
    /** options' name */
1714
    const char *name; /* if name is NULL, it indicates a link to next */
1715
    /** short English text help or const struct AVOption* subpointer */
1716
    const char *help; //        const struct AVOption* sub;
1717
    /** offset to context structure where the parsed value should be stored */
1718
    int offset;
1719
    /** options' type */
1720
    int type;
1721
#define FF_OPT_TYPE_BOOL 1      ///< boolean - true,1,on  (or simply presence)
1722
#define FF_OPT_TYPE_DOUBLE 2    ///< double
1723
#define FF_OPT_TYPE_INT 3       ///< integer
1724
#define FF_OPT_TYPE_STRING 4    ///< string (finished with \0)
1725
#define FF_OPT_TYPE_MASK 0x1f        ///< mask for types - upper bits are various flags
1726
//#define FF_OPT_TYPE_EXPERT 0x20 // flag for expert option
1727
#define FF_OPT_TYPE_FLAG (FF_OPT_TYPE_BOOL | 0x40)
1728
#define FF_OPT_TYPE_RCOVERRIDE (FF_OPT_TYPE_STRING | 0x80)
1729
    /** min value  (min == max   ->  no limits) */
1730
    double min;
1731
    /** maximum value for double/int */
1732
    double max;
1733
    /** default boo [0,1]l/double/int value */
1734
    double defval;
1735
    /**
1736
     * default string value (with optional semicolon delimited extra option-list
1737
     * i.e.   option1;option2;option3
1738
     * defval might select other then first argument as default
1739
     */
1740
    const char *defstr;
1741
#define FF_OPT_MAX_DEPTH 10
1742
} AVOption;
1743

    
1744
/**
1745
 * Parse option(s) and sets fields in passed structure
1746
 * @param strct        structure where the parsed results will be written
1747
 * @param list  list with AVOptions
1748
 * @param opts        string with options for parsing
1749
 */
1750
int avoption_parse(void* strct, const AVOption* list, const char* opts);
1751

    
1752

    
1753
/**
1754
 * AVCodec.
1755
 */
1756
typedef struct AVCodec {
1757
    const char *name;
1758
    enum CodecType type;
1759
    enum CodecID id;
1760
    int priv_data_size;
1761
    int (*init)(AVCodecContext *);
1762
    int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
1763
    int (*close)(AVCodecContext *);
1764
    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size,
1765
                  uint8_t *buf, int buf_size);
1766
    int capabilities;
1767
    const AVOption *options;
1768
    struct AVCodec *next;
1769
    void (*flush)(AVCodecContext *);
1770
    const AVRational *supported_framerates; ///array of supported framerates, or NULL if any, array is terminated by {0,0}
1771
    const enum PixelFormat *pix_fmts;       ///array of supported pixel formats, or NULL if unknown, array is terminanted by -1
1772
} AVCodec;
1773

    
1774
/**
1775
 * four components are given, that's all.
1776
 * the last component is alpha
1777
 */
1778
typedef struct AVPicture {
1779
    uint8_t *data[4];
1780
    int linesize[4];       ///< number of bytes per line
1781
} AVPicture;
1782

    
1783
/**
1784
 * AVPaletteControl
1785
 * This structure defines a method for communicating palette changes
1786
 * between and demuxer and a decoder.
1787
 */
1788
#define AVPALETTE_SIZE 1024
1789
#define AVPALETTE_COUNT 256
1790
typedef struct AVPaletteControl {
1791

    
1792
    /* demuxer sets this to 1 to indicate the palette has changed;
1793
     * decoder resets to 0 */
1794
    int palette_changed;
1795

    
1796
    /* 4-byte ARGB palette entries, stored in native byte order; note that
1797
     * the individual palette components should be on a 8-bit scale; if
1798
     * the palette data comes from a IBM VGA native format, the component
1799
     * data is probably 6 bits in size and needs to be scaled */
1800
    unsigned int palette[AVPALETTE_COUNT];
1801

    
1802
} AVPaletteControl;
1803

    
1804
extern AVCodec ac3_encoder;
1805
extern AVCodec mp2_encoder;
1806
extern AVCodec mp3lame_encoder;
1807
extern AVCodec oggvorbis_encoder;
1808
extern AVCodec faac_encoder;
1809
extern AVCodec xvid_encoder;
1810
extern AVCodec mpeg1video_encoder;
1811
extern AVCodec mpeg2video_encoder;
1812
extern AVCodec h261_encoder;
1813
extern AVCodec h263_encoder;
1814
extern AVCodec h263p_encoder;
1815
extern AVCodec flv_encoder;
1816
extern AVCodec rv10_encoder;
1817
extern AVCodec rv20_encoder;
1818
extern AVCodec dvvideo_encoder;
1819
extern AVCodec mjpeg_encoder;
1820
extern AVCodec ljpeg_encoder;
1821
extern AVCodec png_encoder;
1822
extern AVCodec ppm_encoder;
1823
extern AVCodec pgm_encoder;
1824
extern AVCodec pgmyuv_encoder;
1825
extern AVCodec pbm_encoder;
1826
extern AVCodec pam_encoder;
1827
extern AVCodec mpeg4_encoder;
1828
extern AVCodec msmpeg4v1_encoder;
1829
extern AVCodec msmpeg4v2_encoder;
1830
extern AVCodec msmpeg4v3_encoder;
1831
extern AVCodec wmv1_encoder;
1832
extern AVCodec wmv2_encoder;
1833
extern AVCodec huffyuv_encoder;
1834
extern AVCodec ffvhuff_encoder;
1835
extern AVCodec h264_encoder;
1836
extern AVCodec asv1_encoder;
1837
extern AVCodec asv2_encoder;
1838
extern AVCodec vcr1_encoder;
1839
extern AVCodec ffv1_encoder;
1840
extern AVCodec snow_encoder;
1841
extern AVCodec mdec_encoder;
1842
extern AVCodec zlib_encoder;
1843
extern AVCodec sonic_encoder;
1844
extern AVCodec sonic_ls_encoder;
1845
extern AVCodec svq1_encoder;
1846

    
1847
extern AVCodec h263_decoder;
1848
extern AVCodec h261_decoder;
1849
extern AVCodec mpeg4_decoder;
1850
extern AVCodec msmpeg4v1_decoder;
1851
extern AVCodec msmpeg4v2_decoder;
1852
extern AVCodec msmpeg4v3_decoder;
1853
extern AVCodec wmv1_decoder;
1854
extern AVCodec wmv2_decoder;
1855
extern AVCodec mpeg1video_decoder;
1856
extern AVCodec mpeg2video_decoder;
1857
extern AVCodec mpegvideo_decoder;
1858
extern AVCodec mpeg_xvmc_decoder;
1859
extern AVCodec h263i_decoder;
1860
extern AVCodec flv_decoder;
1861
extern AVCodec rv10_decoder;
1862
extern AVCodec rv20_decoder;
1863
extern AVCodec svq1_decoder;
1864
extern AVCodec svq3_decoder;
1865
extern AVCodec dvvideo_decoder;
1866
extern AVCodec wmav1_decoder;
1867
extern AVCodec wmav2_decoder;
1868
extern AVCodec mjpeg_decoder;
1869
extern AVCodec mjpegb_decoder;
1870
extern AVCodec sp5x_decoder;
1871
extern AVCodec png_decoder;
1872
extern AVCodec mp2_decoder;
1873
extern AVCodec mp3_decoder;
1874
extern AVCodec mace3_decoder;
1875
extern AVCodec mace6_decoder;
1876
extern AVCodec huffyuv_decoder;
1877
extern AVCodec ffvhuff_decoder;
1878
extern AVCodec oggvorbis_decoder;
1879
extern AVCodec cyuv_decoder;
1880
extern AVCodec h264_decoder;
1881
extern AVCodec indeo3_decoder;
1882
extern AVCodec vp3_decoder;
1883
extern AVCodec theora_decoder;
1884
extern AVCodec amr_nb_decoder;
1885
extern AVCodec amr_nb_encoder;
1886
extern AVCodec amr_wb_encoder;
1887
extern AVCodec amr_wb_decoder;
1888
extern AVCodec aac_decoder;
1889
extern AVCodec mpeg4aac_decoder;
1890
extern AVCodec asv1_decoder;
1891
extern AVCodec asv2_decoder;
1892
extern AVCodec vcr1_decoder;
1893
extern AVCodec cljr_decoder;
1894
extern AVCodec ffv1_decoder;
1895
extern AVCodec snow_decoder;
1896
extern AVCodec fourxm_decoder;
1897
extern AVCodec mdec_decoder;
1898
extern AVCodec roq_decoder;
1899
extern AVCodec interplay_video_decoder;
1900
extern AVCodec xan_wc3_decoder;
1901
extern AVCodec rpza_decoder;
1902
extern AVCodec cinepak_decoder;
1903
extern AVCodec msrle_decoder;
1904
extern AVCodec msvideo1_decoder;
1905
extern AVCodec vqa_decoder;
1906
extern AVCodec idcin_decoder;
1907
extern AVCodec eightbps_decoder;
1908
extern AVCodec smc_decoder;
1909
extern AVCodec flic_decoder;
1910
extern AVCodec vmdvideo_decoder;
1911
extern AVCodec vmdaudio_decoder;
1912
extern AVCodec truemotion1_decoder;
1913
extern AVCodec mszh_decoder;
1914
extern AVCodec zlib_decoder;
1915
extern AVCodec ra_144_decoder;
1916
extern AVCodec ra_288_decoder;
1917
extern AVCodec roq_dpcm_decoder;
1918
extern AVCodec interplay_dpcm_decoder;
1919
extern AVCodec xan_dpcm_decoder;
1920
extern AVCodec sol_dpcm_decoder;
1921
extern AVCodec sonic_decoder;
1922
extern AVCodec qtrle_decoder;
1923
extern AVCodec flac_decoder;
1924
extern AVCodec tscc_decoder;
1925
extern AVCodec ulti_decoder;
1926
extern AVCodec qdraw_decoder;
1927
extern AVCodec xl_decoder;
1928
extern AVCodec qpeg_decoder;
1929

    
1930
/* pcm codecs */
1931
#define PCM_CODEC(id, name) \
1932
extern AVCodec name ## _decoder; \
1933
extern AVCodec name ## _encoder
1934

    
1935
PCM_CODEC(CODEC_ID_PCM_S16LE, pcm_s16le);
1936
PCM_CODEC(CODEC_ID_PCM_S16BE, pcm_s16be);
1937
PCM_CODEC(CODEC_ID_PCM_U16LE, pcm_u16le);
1938
PCM_CODEC(CODEC_ID_PCM_U16BE, pcm_u16be);
1939
PCM_CODEC(CODEC_ID_PCM_S8, pcm_s8);
1940
PCM_CODEC(CODEC_ID_PCM_U8, pcm_u8);
1941
PCM_CODEC(CODEC_ID_PCM_ALAW, pcm_alaw);
1942
PCM_CODEC(CODEC_ID_PCM_MULAW, pcm_mulaw);
1943

    
1944
/* adpcm codecs */
1945

    
1946
PCM_CODEC(CODEC_ID_ADPCM_IMA_QT, adpcm_ima_qt);
1947
PCM_CODEC(CODEC_ID_ADPCM_IMA_WAV, adpcm_ima_wav);
1948
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK3, adpcm_ima_dk3);
1949
PCM_CODEC(CODEC_ID_ADPCM_IMA_DK4, adpcm_ima_dk4);
1950
PCM_CODEC(CODEC_ID_ADPCM_IMA_WS, adpcm_ima_ws);
1951
PCM_CODEC(CODEC_ID_ADPCM_SMJPEG, adpcm_ima_smjpeg);
1952
PCM_CODEC(CODEC_ID_ADPCM_MS, adpcm_ms);
1953
PCM_CODEC(CODEC_ID_ADPCM_4XM, adpcm_4xm);
1954
PCM_CODEC(CODEC_ID_ADPCM_XA, adpcm_xa);
1955
PCM_CODEC(CODEC_ID_ADPCM_ADX, adpcm_adx);
1956
PCM_CODEC(CODEC_ID_ADPCM_EA, adpcm_ea);
1957
PCM_CODEC(CODEC_ID_ADPCM_G726, adpcm_g726);
1958
PCM_CODEC(CODEC_ID_ADPCM_CT, adpcm_ct);
1959

    
1960
#undef PCM_CODEC
1961

    
1962
/* dummy raw video codec */
1963
extern AVCodec rawvideo_encoder;
1964
extern AVCodec rawvideo_decoder;
1965

    
1966
/* the following codecs use external GPL libs */
1967
extern AVCodec ac3_decoder;
1968
extern AVCodec dts_decoder;
1969

    
1970
/* resample.c */
1971

    
1972
struct ReSampleContext;
1973
struct AVResampleContext;
1974

    
1975
typedef struct ReSampleContext ReSampleContext;
1976

    
1977
ReSampleContext *audio_resample_init(int output_channels, int input_channels, 
1978
                                     int output_rate, int input_rate);
1979
int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
1980
void audio_resample_close(ReSampleContext *s);
1981

    
1982
struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);
1983
int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);
1984
void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
1985
void av_resample_close(struct AVResampleContext *c);
1986

    
1987
/* YUV420 format is assumed ! */
1988

    
1989
struct ImgReSampleContext;
1990

    
1991
typedef struct ImgReSampleContext ImgReSampleContext;
1992

    
1993
ImgReSampleContext *img_resample_init(int output_width, int output_height,
1994
                                      int input_width, int input_height);
1995

    
1996
ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
1997
                                      int iwidth, int iheight,
1998
                                      int topBand, int bottomBand,
1999
                                      int leftBand, int rightBand,
2000
                                      int padtop, int padbottom,
2001
                                      int padleft, int padright);
2002

    
2003

    
2004
void img_resample(ImgReSampleContext *s, 
2005
                  AVPicture *output, const AVPicture *input);
2006

    
2007
void img_resample_close(ImgReSampleContext *s);
2008

    
2009
/**
2010
 * Allocate memory for a picture.  Call avpicture_free to free it.
2011
 *
2012
 * @param picture the picture to be filled in.
2013
 * @param pix_fmt the format of the picture.
2014
 * @param width the width of the picture.
2015
 * @param height the height of the picture.
2016
 * @return 0 if successful, -1 if not.
2017
 */
2018
int avpicture_alloc(AVPicture *picture, int pix_fmt, int width, int height);
2019

    
2020
/* Free a picture previously allocated by avpicture_alloc. */
2021
void avpicture_free(AVPicture *picture);
2022

    
2023
int avpicture_fill(AVPicture *picture, uint8_t *ptr,
2024
                   int pix_fmt, int width, int height);
2025
int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
2026
                     unsigned char *dest, int dest_size);
2027
int avpicture_get_size(int pix_fmt, int width, int height);
2028
void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift);
2029
const char *avcodec_get_pix_fmt_name(int pix_fmt);
2030
void avcodec_set_dimensions(AVCodecContext *s, int width, int height);
2031
enum PixelFormat avcodec_get_pix_fmt(const char* name);
2032
unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat p);
2033

    
2034
#define FF_LOSS_RESOLUTION  0x0001 /* loss due to resolution change */
2035
#define FF_LOSS_DEPTH       0x0002 /* loss due to color depth change */
2036
#define FF_LOSS_COLORSPACE  0x0004 /* loss due to color space conversion */
2037
#define FF_LOSS_ALPHA       0x0008 /* loss of alpha bits */
2038
#define FF_LOSS_COLORQUANT  0x0010 /* loss due to color quantization */
2039
#define FF_LOSS_CHROMA      0x0020 /* loss of chroma (e.g. rgb to gray conversion) */
2040

    
2041
int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
2042
                             int has_alpha);
2043
int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
2044
                              int has_alpha, int *loss_ptr);
2045

    
2046
#define FF_ALPHA_TRANSP       0x0001 /* image has some totally transparent pixels */
2047
#define FF_ALPHA_SEMI_TRANSP  0x0002 /* image has some transparent pixels */
2048
int img_get_alpha_info(const AVPicture *src,
2049
                       int pix_fmt, int width, int height);
2050

    
2051
/* convert among pixel formats */
2052
int img_convert(AVPicture *dst, int dst_pix_fmt,
2053
                const AVPicture *src, int pix_fmt, 
2054
                int width, int height);
2055

    
2056
/* deinterlace a picture */
2057
int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
2058
                          int pix_fmt, int width, int height);
2059

    
2060
/* external high level API */
2061

    
2062
extern AVCodec *first_avcodec;
2063

    
2064
/* returns LIBAVCODEC_VERSION_INT constant */
2065
unsigned avcodec_version(void);
2066
/* returns LIBAVCODEC_BUILD constant */
2067
unsigned avcodec_build(void);
2068
void avcodec_init(void);
2069

    
2070
void register_avcodec(AVCodec *format);
2071
AVCodec *avcodec_find_encoder(enum CodecID id);
2072
AVCodec *avcodec_find_encoder_by_name(const char *name);
2073
AVCodec *avcodec_find_decoder(enum CodecID id);
2074
AVCodec *avcodec_find_decoder_by_name(const char *name);
2075
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);
2076

    
2077
void avcodec_get_context_defaults(AVCodecContext *s);
2078
AVCodecContext *avcodec_alloc_context(void);
2079
void avcodec_get_frame_defaults(AVFrame *pic);
2080
AVFrame *avcodec_alloc_frame(void);
2081

    
2082
int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
2083
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
2084
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);
2085
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
2086
enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);
2087

    
2088
int avcodec_thread_init(AVCodecContext *s, int thread_count);
2089
void avcodec_thread_free(AVCodecContext *s);
2090
int avcodec_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2091
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
2092
//FIXME func typedef
2093

    
2094
/**
2095
 * opens / inits the AVCodecContext.
2096
 * not thread save!
2097
 */
2098
int avcodec_open(AVCodecContext *avctx, AVCodec *codec);
2099

    
2100
int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples, 
2101
                         int *frame_size_ptr,
2102
                         uint8_t *buf, int buf_size);
2103
int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture, 
2104
                         int *got_picture_ptr,
2105
                         uint8_t *buf, int buf_size);
2106
int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata, 
2107
                        int *data_size_ptr,
2108
                        uint8_t *buf, int buf_size);
2109
int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
2110
                         const short *samples);
2111
int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size, 
2112
                         const AVFrame *pict);
2113

    
2114
int avcodec_close(AVCodecContext *avctx);
2115

    
2116
void avcodec_register_all(void);
2117

    
2118
void avcodec_flush_buffers(AVCodecContext *avctx);
2119

    
2120
/* misc usefull functions */
2121

    
2122
/**
2123
 * returns a single letter to describe the picture type
2124
 */
2125
char av_get_pict_type_char(int pict_type);
2126

    
2127
/**
2128
 * reduce a fraction.
2129
 * this is usefull for framerate calculations
2130
 * @param max the maximum allowed for dst_nom & dst_den
2131
 * @return 1 if exact, 0 otherwise
2132
 */
2133
int av_reduce(int *dst_nom, int *dst_den, int64_t nom, int64_t den, int64_t max);
2134

    
2135
/**
2136
 * rescale a 64bit integer with rounding to nearest.
2137
 * a simple a*b/c isnt possible as it can overflow
2138
 */
2139
int64_t av_rescale(int64_t a, int64_t b, int64_t c);
2140

    
2141
/**
2142
 * rescale a 64bit integer with specified rounding.
2143
 * a simple a*b/c isnt possible as it can overflow
2144
 */
2145
int64_t av_rescale_rnd(int64_t a, int64_t b, int64_t c, enum AVRounding);
2146

    
2147
/* frame parsing */
2148
typedef struct AVCodecParserContext {
2149
    void *priv_data;
2150
    struct AVCodecParser *parser;
2151
    int64_t frame_offset; /* offset of the current frame */
2152
    int64_t cur_offset; /* current offset 
2153
                           (incremented by each av_parser_parse()) */
2154
    int64_t last_frame_offset; /* offset of the last frame */
2155
    /* video info */
2156
    int pict_type; /* XXX: put it back in AVCodecContext */
2157
    int repeat_pict; /* XXX: put it back in AVCodecContext */
2158
    int64_t pts;     /* pts of the current frame */
2159
    int64_t dts;     /* dts of the current frame */
2160

    
2161
    /* private data */
2162
    int64_t last_pts;
2163
    int64_t last_dts;
2164
    int fetch_timestamp;
2165

    
2166
#define AV_PARSER_PTS_NB 4
2167
    int cur_frame_start_index;
2168
    int64_t cur_frame_offset[AV_PARSER_PTS_NB];
2169
    int64_t cur_frame_pts[AV_PARSER_PTS_NB];
2170
    int64_t cur_frame_dts[AV_PARSER_PTS_NB];
2171
} AVCodecParserContext;
2172

    
2173
typedef struct AVCodecParser {
2174
    int codec_ids[5]; /* several codec IDs are permitted */
2175
    int priv_data_size;
2176
    int (*parser_init)(AVCodecParserContext *s);
2177
    int (*parser_parse)(AVCodecParserContext *s, 
2178
                        AVCodecContext *avctx,
2179
                        uint8_t **poutbuf, int *poutbuf_size, 
2180
                        const uint8_t *buf, int buf_size);
2181
    void (*parser_close)(AVCodecParserContext *s);
2182
    struct AVCodecParser *next;
2183
} AVCodecParser;
2184

    
2185
extern AVCodecParser *av_first_parser;
2186

    
2187
void av_register_codec_parser(AVCodecParser *parser);
2188
AVCodecParserContext *av_parser_init(int codec_id);
2189
int av_parser_parse(AVCodecParserContext *s, 
2190
                    AVCodecContext *avctx,
2191
                    uint8_t **poutbuf, int *poutbuf_size, 
2192
                    const uint8_t *buf, int buf_size,
2193
                    int64_t pts, int64_t dts);
2194
void av_parser_close(AVCodecParserContext *s);
2195

    
2196
extern AVCodecParser mpegvideo_parser;
2197
extern AVCodecParser mpeg4video_parser;
2198
extern AVCodecParser h261_parser;
2199
extern AVCodecParser h263_parser;
2200
extern AVCodecParser h264_parser;
2201
extern AVCodecParser mjpeg_parser;
2202
extern AVCodecParser pnm_parser;
2203
extern AVCodecParser mpegaudio_parser;
2204
extern AVCodecParser ac3_parser;
2205

    
2206
/* memory */
2207
void *av_malloc(unsigned int size);
2208
void *av_mallocz(unsigned int size);
2209
void *av_realloc(void *ptr, unsigned int size);
2210
void av_free(void *ptr);
2211
char *av_strdup(const char *s);
2212
void av_freep(void *ptr);
2213
void *av_fast_realloc(void *ptr, unsigned int *size, unsigned int min_size);
2214
/* for static data only */
2215
/* call av_free_static to release all staticaly allocated tables */
2216
void av_free_static(void);
2217
void *av_mallocz_static(unsigned int size);
2218
void *av_realloc_static(void *ptr, unsigned int size);
2219

    
2220
/* add by bero : in adx.c */
2221
int is_adx(const unsigned char *buf,size_t bufsize);
2222

    
2223
void img_copy(AVPicture *dst, const AVPicture *src,
2224
              int pix_fmt, int width, int height);
2225

    
2226
/* av_log API */
2227

    
2228
#include <stdarg.h>
2229

    
2230
#define AV_LOG_QUIET -1
2231
#define AV_LOG_ERROR 0
2232
#define AV_LOG_INFO 1
2233
#define AV_LOG_DEBUG 2
2234

    
2235
#ifdef __GNUC__
2236
extern void av_log(void*, int level, const char *fmt, ...) __attribute__ ((__format__ (__printf__, 3, 4)));
2237
#else
2238
extern void av_log(void*, int level, const char *fmt, ...);
2239
#endif
2240

    
2241
extern void av_vlog(void*, int level, const char *fmt, va_list);
2242
extern int av_log_get_level(void);
2243
extern void av_log_set_level(int);
2244
extern void av_log_set_callback(void (*)(void*, int, const char*, va_list));
2245

    
2246
/* endian macros */
2247
#if !defined(BE_16) || !defined(BE_32) || !defined(LE_16) || !defined(LE_32)
2248
#define BE_16(x)  ((((uint8_t*)(x))[0] << 8) | ((uint8_t*)(x))[1])
2249
#define BE_32(x)  ((((uint8_t*)(x))[0] << 24) | \
2250
                   (((uint8_t*)(x))[1] << 16) | \
2251
                   (((uint8_t*)(x))[2] << 8) | \
2252
                    ((uint8_t*)(x))[3])
2253
#define LE_16(x)  ((((uint8_t*)(x))[1] << 8) | ((uint8_t*)(x))[0])
2254
#define LE_32(x)  ((((uint8_t*)(x))[3] << 24) | \
2255
                   (((uint8_t*)(x))[2] << 16) | \
2256
                   (((uint8_t*)(x))[1] << 8) | \
2257
                    ((uint8_t*)(x))[0])
2258
#endif
2259

    
2260
#ifdef __cplusplus
2261
}
2262
#endif
2263

    
2264
#endif /* AVCODEC_H */