libavcodec/avcodec.h

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/*
 * copyright (c) 2001 Fabrice Bellard
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#ifndef AVCODEC_AVCODEC_H
#define AVCODEC_AVCODEC_H

#include <errno.h>
#include "libavcore/samplefmt.h"
#include "libavutil/avutil.h"
#include "libavutil/cpu.h"

#define LIBAVCODEC_VERSION_MAJOR 52
#define LIBAVCODEC_VERSION_MINOR 108
#define LIBAVCODEC_VERSION_MICRO  0

#define LIBAVCODEC_VERSION_INT  AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
                                               LIBAVCODEC_VERSION_MINOR, \
                                               LIBAVCODEC_VERSION_MICRO)
#define LIBAVCODEC_VERSION      AV_VERSION(LIBAVCODEC_VERSION_MAJOR,    \
                                           LIBAVCODEC_VERSION_MINOR,    \
                                           LIBAVCODEC_VERSION_MICRO)
#define LIBAVCODEC_BUILD        LIBAVCODEC_VERSION_INT

#define LIBAVCODEC_IDENT        "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)

#ifndef FF_API_PALETTE_CONTROL
#define FF_API_PALETTE_CONTROL  (LIBAVCODEC_VERSION_MAJOR < 54)
#endif
#ifndef FF_API_MM_FLAGS
#define FF_API_MM_FLAGS         (LIBAVCODEC_VERSION_MAJOR < 53)
#endif
#ifndef FF_API_OPT_SHOW
#define FF_API_OPT_SHOW         (LIBAVCODEC_VERSION_MAJOR < 53)
#endif
#ifndef FF_API_AUDIO_OLD
#define FF_API_AUDIO_OLD        (LIBAVCODEC_VERSION_MAJOR < 53)
#endif
#ifndef FF_API_VIDEO_OLD
#define FF_API_VIDEO_OLD        (LIBAVCODEC_VERSION_MAJOR < 53)
#endif
#ifndef FF_API_SUBTITLE_OLD
#define FF_API_SUBTITLE_OLD     (LIBAVCODEC_VERSION_MAJOR < 53)
#endif
#ifndef FF_API_USE_LPC
#define FF_API_USE_LPC          (LIBAVCODEC_VERSION_MAJOR < 53)
#endif
#ifndef FF_API_SET_STRING_OLD
#define FF_API_SET_STRING_OLD   (LIBAVCODEC_VERSION_MAJOR < 53)
#endif
#ifndef FF_API_INOFFICIAL
#define FF_API_INOFFICIAL       (LIBAVCODEC_VERSION_MAJOR < 53)
#endif
#ifndef FF_API_OLD_SAMPLE_FMT
#define FF_API_OLD_SAMPLE_FMT   (LIBAVCODEC_VERSION_MAJOR < 53)
#endif
#ifndef FF_API_OLD_AUDIOCONVERT
#define FF_API_OLD_AUDIOCONVERT (LIBAVCODEC_VERSION_MAJOR < 53)
#endif

#if LIBAVCODEC_VERSION_MAJOR < 53
#   define FF_INTERNALC_MEM_TYPE unsigned int
#else
#   define FF_INTERNALC_MEM_TYPE size_t
#endif

enum CodecID {
    CODEC_ID_NONE,

    /* video codecs */
    CODEC_ID_MPEG1VIDEO,
    CODEC_ID_MPEG2VIDEO, 
    CODEC_ID_MPEG2VIDEO_XVMC,
    CODEC_ID_H261,
    CODEC_ID_H263,
    CODEC_ID_RV10,
    CODEC_ID_RV20,
    CODEC_ID_MJPEG,
    CODEC_ID_MJPEGB,
    CODEC_ID_LJPEG,
    CODEC_ID_SP5X,
    CODEC_ID_JPEGLS,
    CODEC_ID_MPEG4,
    CODEC_ID_RAWVIDEO,
    CODEC_ID_MSMPEG4V1,
    CODEC_ID_MSMPEG4V2,
    CODEC_ID_MSMPEG4V3,
    CODEC_ID_WMV1,
    CODEC_ID_WMV2,
    CODEC_ID_H263P,
    CODEC_ID_H263I,
    CODEC_ID_FLV1,
    CODEC_ID_SVQ1,
    CODEC_ID_SVQ3,
    CODEC_ID_DVVIDEO,
    CODEC_ID_HUFFYUV,
    CODEC_ID_CYUV,
    CODEC_ID_H264,
    CODEC_ID_INDEO3,
    CODEC_ID_VP3,
    CODEC_ID_THEORA,
    CODEC_ID_ASV1,
    CODEC_ID_ASV2,
    CODEC_ID_FFV1,
    CODEC_ID_4XM,
    CODEC_ID_VCR1,
    CODEC_ID_CLJR,
    CODEC_ID_MDEC,
    CODEC_ID_ROQ,
    CODEC_ID_INTERPLAY_VIDEO,
    CODEC_ID_XAN_WC3,
    CODEC_ID_XAN_WC4,
    CODEC_ID_RPZA,
    CODEC_ID_CINEPAK,
    CODEC_ID_WS_VQA,
    CODEC_ID_MSRLE,
    CODEC_ID_MSVIDEO1,
    CODEC_ID_IDCIN,
    CODEC_ID_8BPS,
    CODEC_ID_SMC,
    CODEC_ID_FLIC,
    CODEC_ID_TRUEMOTION1,
    CODEC_ID_VMDVIDEO,
    CODEC_ID_MSZH,
    CODEC_ID_ZLIB,
    CODEC_ID_QTRLE,
    CODEC_ID_SNOW,
    CODEC_ID_TSCC,
    CODEC_ID_ULTI,
    CODEC_ID_QDRAW,
    CODEC_ID_VIXL,
    CODEC_ID_QPEG,
#if LIBAVCODEC_VERSION_MAJOR < 53
    CODEC_ID_XVID,
#endif
    CODEC_ID_PNG,
    CODEC_ID_PPM,
    CODEC_ID_PBM,
    CODEC_ID_PGM,
    CODEC_ID_PGMYUV,
    CODEC_ID_PAM,
    CODEC_ID_FFVHUFF,
    CODEC_ID_RV30,
    CODEC_ID_RV40,
    CODEC_ID_VC1,
    CODEC_ID_WMV3,
    CODEC_ID_LOCO,
    CODEC_ID_WNV1,
    CODEC_ID_AASC,
    CODEC_ID_INDEO2,
    CODEC_ID_FRAPS,
    CODEC_ID_TRUEMOTION2,
    CODEC_ID_BMP,
    CODEC_ID_CSCD,
    CODEC_ID_MMVIDEO,
    CODEC_ID_ZMBV,
    CODEC_ID_AVS,
    CODEC_ID_SMACKVIDEO,
    CODEC_ID_NUV,
    CODEC_ID_KMVC,
    CODEC_ID_FLASHSV,
    CODEC_ID_CAVS,
    CODEC_ID_JPEG2000,
    CODEC_ID_VMNC,
    CODEC_ID_VP5,
    CODEC_ID_VP6,
    CODEC_ID_VP6F,
    CODEC_ID_TARGA,
    CODEC_ID_DSICINVIDEO,
    CODEC_ID_TIERTEXSEQVIDEO,
    CODEC_ID_TIFF,
    CODEC_ID_GIF,
    CODEC_ID_FFH264,
    CODEC_ID_DXA,
    CODEC_ID_DNXHD,
    CODEC_ID_THP,
    CODEC_ID_SGI,
    CODEC_ID_C93,
    CODEC_ID_BETHSOFTVID,
    CODEC_ID_PTX,
    CODEC_ID_TXD,
    CODEC_ID_VP6A,
    CODEC_ID_AMV,
    CODEC_ID_VB,
    CODEC_ID_PCX,
    CODEC_ID_SUNRAST,
    CODEC_ID_INDEO4,
    CODEC_ID_INDEO5,
    CODEC_ID_MIMIC,
    CODEC_ID_RL2,
    CODEC_ID_8SVX_EXP,
    CODEC_ID_8SVX_FIB,
    CODEC_ID_ESCAPE124,
    CODEC_ID_DIRAC,
    CODEC_ID_BFI,
    CODEC_ID_CMV,
    CODEC_ID_MOTIONPIXELS,
    CODEC_ID_TGV,
    CODEC_ID_TGQ,
    CODEC_ID_TQI,
    CODEC_ID_AURA,
    CODEC_ID_AURA2,
    CODEC_ID_V210X,
    CODEC_ID_TMV,
    CODEC_ID_V210,
    CODEC_ID_DPX,
    CODEC_ID_MAD,
    CODEC_ID_FRWU,
    CODEC_ID_FLASHSV2,
    CODEC_ID_CDGRAPHICS,
    CODEC_ID_R210,
    CODEC_ID_ANM,
    CODEC_ID_BINKVIDEO,
    CODEC_ID_IFF_ILBM,
    CODEC_ID_IFF_BYTERUN1,
    CODEC_ID_KGV1,
    CODEC_ID_YOP,
    CODEC_ID_VP8,
    CODEC_ID_PICTOR,
    CODEC_ID_ANSI,
    CODEC_ID_A64_MULTI,
    CODEC_ID_A64_MULTI5,
    CODEC_ID_R10K,
    CODEC_ID_MXPEG,
    CODEC_ID_LAGARITH,

    /* various PCM "codecs" */
    CODEC_ID_PCM_S16LE= 0x10000,
    CODEC_ID_PCM_S16BE,
    CODEC_ID_PCM_U16LE,
    CODEC_ID_PCM_U16BE,
    CODEC_ID_PCM_S8,
    CODEC_ID_PCM_U8,
    CODEC_ID_PCM_MULAW,
    CODEC_ID_PCM_ALAW,
    CODEC_ID_PCM_S32LE,
    CODEC_ID_PCM_S32BE,
    CODEC_ID_PCM_U32LE,
    CODEC_ID_PCM_U32BE,
    CODEC_ID_PCM_S24LE,
    CODEC_ID_PCM_S24BE,
    CODEC_ID_PCM_U24LE,
    CODEC_ID_PCM_U24BE,
    CODEC_ID_PCM_S24DAUD,
    CODEC_ID_PCM_ZORK,
    CODEC_ID_PCM_S16LE_PLANAR,
    CODEC_ID_PCM_DVD,
    CODEC_ID_PCM_F32BE,
    CODEC_ID_PCM_F32LE,
    CODEC_ID_PCM_F64BE,
    CODEC_ID_PCM_F64LE,
    CODEC_ID_PCM_BLURAY,
    CODEC_ID_PCM_LXF,

    /* various ADPCM codecs */
    CODEC_ID_ADPCM_IMA_QT= 0x11000,
    CODEC_ID_ADPCM_IMA_WAV,
    CODEC_ID_ADPCM_IMA_DK3,
    CODEC_ID_ADPCM_IMA_DK4,
    CODEC_ID_ADPCM_IMA_WS,
    CODEC_ID_ADPCM_IMA_SMJPEG,
    CODEC_ID_ADPCM_MS,
    CODEC_ID_ADPCM_4XM,
    CODEC_ID_ADPCM_XA,
    CODEC_ID_ADPCM_ADX,
    CODEC_ID_ADPCM_EA,
    CODEC_ID_ADPCM_G726,
    CODEC_ID_ADPCM_CT,
    CODEC_ID_ADPCM_SWF,
    CODEC_ID_ADPCM_YAMAHA,
    CODEC_ID_ADPCM_SBPRO_4,
    CODEC_ID_ADPCM_SBPRO_3,
    CODEC_ID_ADPCM_SBPRO_2,
    CODEC_ID_ADPCM_THP,
    CODEC_ID_ADPCM_IMA_AMV,
    CODEC_ID_ADPCM_EA_R1,
    CODEC_ID_ADPCM_EA_R3,
    CODEC_ID_ADPCM_EA_R2,
    CODEC_ID_ADPCM_IMA_EA_SEAD,
    CODEC_ID_ADPCM_IMA_EA_EACS,
    CODEC_ID_ADPCM_EA_XAS,
    CODEC_ID_ADPCM_EA_MAXIS_XA,
    CODEC_ID_ADPCM_IMA_ISS,
    CODEC_ID_ADPCM_G722,

    /* AMR */
    CODEC_ID_AMR_NB= 0x12000,
    CODEC_ID_AMR_WB,

    /* RealAudio codecs*/
    CODEC_ID_RA_144= 0x13000,
    CODEC_ID_RA_288,

    /* various DPCM codecs */
    CODEC_ID_ROQ_DPCM= 0x14000,
    CODEC_ID_INTERPLAY_DPCM,
    CODEC_ID_XAN_DPCM,
    CODEC_ID_SOL_DPCM,

    /* audio codecs */
    CODEC_ID_MP2= 0x15000,
    CODEC_ID_MP3, 
    CODEC_ID_AAC,
    CODEC_ID_AC3,
    CODEC_ID_DTS,
    CODEC_ID_VORBIS,
    CODEC_ID_DVAUDIO,
    CODEC_ID_WMAV1,
    CODEC_ID_WMAV2,
    CODEC_ID_MACE3,
    CODEC_ID_MACE6,
    CODEC_ID_VMDAUDIO,
    CODEC_ID_SONIC,
    CODEC_ID_SONIC_LS,
    CODEC_ID_FLAC,
    CODEC_ID_MP3ADU,
    CODEC_ID_MP3ON4,
    CODEC_ID_SHORTEN,
    CODEC_ID_ALAC,
    CODEC_ID_WESTWOOD_SND1,
    CODEC_ID_GSM, 
    CODEC_ID_QDM2,
    CODEC_ID_COOK,
    CODEC_ID_TRUESPEECH,
    CODEC_ID_TTA,
    CODEC_ID_SMACKAUDIO,
    CODEC_ID_QCELP,
    CODEC_ID_WAVPACK,
    CODEC_ID_DSICINAUDIO,
    CODEC_ID_IMC,
    CODEC_ID_MUSEPACK7,
    CODEC_ID_MLP,
    CODEC_ID_GSM_MS, /* as found in WAV */
    CODEC_ID_ATRAC3,
    CODEC_ID_VOXWARE,
    CODEC_ID_APE,
    CODEC_ID_NELLYMOSER,
    CODEC_ID_MUSEPACK8,
    CODEC_ID_SPEEX,
    CODEC_ID_WMAVOICE,
    CODEC_ID_WMAPRO,
    CODEC_ID_WMALOSSLESS,
    CODEC_ID_ATRAC3P,
    CODEC_ID_EAC3,
    CODEC_ID_SIPR,
    CODEC_ID_MP1,
    CODEC_ID_TWINVQ,
    CODEC_ID_TRUEHD,
    CODEC_ID_MP4ALS,
    CODEC_ID_ATRAC1,
    CODEC_ID_BINKAUDIO_RDFT,
    CODEC_ID_BINKAUDIO_DCT,
    CODEC_ID_AAC_LATM,

    /* subtitle codecs */
    CODEC_ID_DVD_SUBTITLE= 0x17000,
    CODEC_ID_DVB_SUBTITLE,
    CODEC_ID_TEXT,  
    CODEC_ID_XSUB,
    CODEC_ID_SSA,
    CODEC_ID_MOV_TEXT,
    CODEC_ID_HDMV_PGS_SUBTITLE,
    CODEC_ID_DVB_TELETEXT,
    CODEC_ID_SRT,

    /* other specific kind of codecs (generally used for attachments) */
    CODEC_ID_TTF= 0x18000,

    CODEC_ID_PROBE= 0x19000, 

    CODEC_ID_MPEG2TS= 0x20000, 
    CODEC_ID_FFMETADATA=0x21000,   
};

#if LIBAVCODEC_VERSION_MAJOR < 53
#define CodecType AVMediaType

#define CODEC_TYPE_UNKNOWN    AVMEDIA_TYPE_UNKNOWN
#define CODEC_TYPE_VIDEO      AVMEDIA_TYPE_VIDEO
#define CODEC_TYPE_AUDIO      AVMEDIA_TYPE_AUDIO
#define CODEC_TYPE_DATA       AVMEDIA_TYPE_DATA
#define CODEC_TYPE_SUBTITLE   AVMEDIA_TYPE_SUBTITLE
#define CODEC_TYPE_ATTACHMENT AVMEDIA_TYPE_ATTACHMENT
#define CODEC_TYPE_NB         AVMEDIA_TYPE_NB
#endif

#if FF_API_OLD_SAMPLE_FMT
#define SampleFormat AVSampleFormat

#define SAMPLE_FMT_NONE AV_SAMPLE_FMT_NONE
#define SAMPLE_FMT_U8   AV_SAMPLE_FMT_U8
#define SAMPLE_FMT_S16  AV_SAMPLE_FMT_S16
#define SAMPLE_FMT_S32  AV_SAMPLE_FMT_S32
#define SAMPLE_FMT_FLT  AV_SAMPLE_FMT_FLT
#define SAMPLE_FMT_DBL  AV_SAMPLE_FMT_DBL
#define SAMPLE_FMT_NB   AV_SAMPLE_FMT_NB
#endif

#if FF_API_OLD_AUDIOCONVERT
#include "libavcore/audioconvert.h"

/* Audio channel masks */
#define CH_FRONT_LEFT            AV_CH_FRONT_LEFT
#define CH_FRONT_RIGHT           AV_CH_FRONT_RIGHT
#define CH_FRONT_CENTER          AV_CH_FRONT_CENTER
#define CH_LOW_FREQUENCY         AV_CH_LOW_FREQUENCY
#define CH_BACK_LEFT             AV_CH_BACK_LEFT
#define CH_BACK_RIGHT            AV_CH_BACK_RIGHT
#define CH_FRONT_LEFT_OF_CENTER  AV_CH_FRONT_LEFT_OF_CENTER
#define CH_FRONT_RIGHT_OF_CENTER AV_CH_FRONT_RIGHT_OF_CENTER
#define CH_BACK_CENTER           AV_CH_BACK_CENTER
#define CH_SIDE_LEFT             AV_CH_SIDE_LEFT
#define CH_SIDE_RIGHT            AV_CH_SIDE_RIGHT
#define CH_TOP_CENTER            AV_CH_TOP_CENTER
#define CH_TOP_FRONT_LEFT        AV_CH_TOP_FRONT_LEFT
#define CH_TOP_FRONT_CENTER      AV_CH_TOP_FRONT_CENTER
#define CH_TOP_FRONT_RIGHT       AV_CH_TOP_FRONT_RIGHT
#define CH_TOP_BACK_LEFT         AV_CH_TOP_BACK_LEFT
#define CH_TOP_BACK_CENTER       AV_CH_TOP_BACK_CENTER
#define CH_TOP_BACK_RIGHT        AV_CH_TOP_BACK_RIGHT
#define CH_STEREO_LEFT           AV_CH_STEREO_LEFT
#define CH_STEREO_RIGHT          AV_CH_STEREO_RIGHT

#define CH_LAYOUT_NATIVE         AV_CH_LAYOUT_NATIVE

/* Audio channel convenience macros */
#define CH_LAYOUT_MONO           AV_CH_LAYOUT_MONO
#define CH_LAYOUT_STEREO         AV_CH_LAYOUT_STEREO
#define CH_LAYOUT_2_1            AV_CH_LAYOUT_2_1
#define CH_LAYOUT_SURROUND       AV_CH_LAYOUT_SURROUND
#define CH_LAYOUT_4POINT0        AV_CH_LAYOUT_4POINT0
#define CH_LAYOUT_2_2            AV_CH_LAYOUT_2_2
#define CH_LAYOUT_QUAD           AV_CH_LAYOUT_QUAD
#define CH_LAYOUT_5POINT0        AV_CH_LAYOUT_5POINT0
#define CH_LAYOUT_5POINT1        AV_CH_LAYOUT_5POINT1
#define CH_LAYOUT_5POINT0_BACK   AV_CH_LAYOUT_5POINT0_BACK
#define CH_LAYOUT_5POINT1_BACK   AV_CH_LAYOUT_5POINT1_BACK
#define CH_LAYOUT_7POINT0        AV_CH_LAYOUT_7POINT0
#define CH_LAYOUT_7POINT1        AV_CH_LAYOUT_7POINT1
#define CH_LAYOUT_7POINT1_WIDE   AV_CH_LAYOUT_7POINT1_WIDE
#define CH_LAYOUT_STEREO_DOWNMIX AV_CH_LAYOUT_STEREO_DOWNMIX
#endif

/* in bytes */
#define AVCODEC_MAX_AUDIO_FRAME_SIZE 192000 // 1 second of 48khz 32bit audio

#define FF_INPUT_BUFFER_PADDING_SIZE 8

#define FF_MIN_BUFFER_SIZE 16384


enum Motion_Est_ID {
    ME_ZERO = 1,    
    ME_FULL,
    ME_LOG,
    ME_PHODS,
    ME_EPZS,        
    ME_X1,          
    ME_HEX,         
    ME_UMH,         
    ME_ITER,        
    ME_TESA,        
};

enum AVDiscard{
    /* We leave some space between them for extensions (drop some
     * keyframes for intra-only or drop just some bidir frames). */
    AVDISCARD_NONE   =-16, 
    AVDISCARD_DEFAULT=  0, 
    AVDISCARD_NONREF =  8, 
    AVDISCARD_BIDIR  = 16, 
    AVDISCARD_NONKEY = 32, 
    AVDISCARD_ALL    = 48, 
};

enum AVColorPrimaries{
    AVCOL_PRI_BT709      =1, 
    AVCOL_PRI_UNSPECIFIED=2,
    AVCOL_PRI_BT470M     =4,
    AVCOL_PRI_BT470BG    =5, 
    AVCOL_PRI_SMPTE170M  =6, 
    AVCOL_PRI_SMPTE240M  =7, 
    AVCOL_PRI_FILM       =8,
    AVCOL_PRI_NB           , 
};

enum AVColorTransferCharacteristic{
    AVCOL_TRC_BT709      =1, 
    AVCOL_TRC_UNSPECIFIED=2,
    AVCOL_TRC_GAMMA22    =4, 
    AVCOL_TRC_GAMMA28    =5, 
    AVCOL_TRC_NB           , 
};

enum AVColorSpace{
    AVCOL_SPC_RGB        =0,
    AVCOL_SPC_BT709      =1, 
    AVCOL_SPC_UNSPECIFIED=2,
    AVCOL_SPC_FCC        =4,
    AVCOL_SPC_BT470BG    =5, 
    AVCOL_SPC_SMPTE170M  =6, 
    AVCOL_SPC_SMPTE240M  =7,
    AVCOL_SPC_NB           , 
};

enum AVColorRange{
    AVCOL_RANGE_UNSPECIFIED=0,
    AVCOL_RANGE_MPEG       =1, 
    AVCOL_RANGE_JPEG       =2, 
    AVCOL_RANGE_NB           , 
};

enum AVChromaLocation{
    AVCHROMA_LOC_UNSPECIFIED=0,
    AVCHROMA_LOC_LEFT       =1, 
    AVCHROMA_LOC_CENTER     =2, 
    AVCHROMA_LOC_TOPLEFT    =3, 
    AVCHROMA_LOC_TOP        =4,
    AVCHROMA_LOC_BOTTOMLEFT =5,
    AVCHROMA_LOC_BOTTOM     =6,
    AVCHROMA_LOC_NB           , 
};

enum AVLPCType {
    AV_LPC_TYPE_DEFAULT     = -1, 
    AV_LPC_TYPE_NONE        =  0, 
    AV_LPC_TYPE_FIXED       =  1, 
    AV_LPC_TYPE_LEVINSON    =  2, 
    AV_LPC_TYPE_CHOLESKY    =  3, 
    AV_LPC_TYPE_NB              , 
};

typedef struct RcOverride{
    int start_frame;
    int end_frame;
    int qscale; // If this is 0 then quality_factor will be used instead.
    float quality_factor;
} RcOverride;

#define FF_MAX_B_FRAMES 16

/* encoding support
   These flags can be passed in AVCodecContext.flags before initialization.
   Note: Not everything is supported yet.
*/

#define CODEC_FLAG_QSCALE 0x0002  
#define CODEC_FLAG_4MV    0x0004  
#define CODEC_FLAG_QPEL   0x0010  
#define CODEC_FLAG_GMC    0x0020  
#define CODEC_FLAG_MV0    0x0040  
#define CODEC_FLAG_PART   0x0080  

#define CODEC_FLAG_INPUT_PRESERVED 0x0100
#define CODEC_FLAG_PASS1           0x0200   
#define CODEC_FLAG_PASS2           0x0400   
#define CODEC_FLAG_EXTERN_HUFF     0x1000   
#define CODEC_FLAG_GRAY            0x2000   
#define CODEC_FLAG_EMU_EDGE        0x4000   
#define CODEC_FLAG_PSNR            0x8000   
#define CODEC_FLAG_TRUNCATED       0x00010000 
#define CODEC_FLAG_NORMALIZE_AQP  0x00020000 
#define CODEC_FLAG_INTERLACED_DCT 0x00040000 
#define CODEC_FLAG_LOW_DELAY      0x00080000 
#define CODEC_FLAG_ALT_SCAN       0x00100000 
#define CODEC_FLAG_GLOBAL_HEADER  0x00400000 
#define CODEC_FLAG_BITEXACT       0x00800000 
/* Fx : Flag for h263+ extra options */
#define CODEC_FLAG_AC_PRED        0x01000000 
#define CODEC_FLAG_H263P_UMV      0x02000000 
#define CODEC_FLAG_CBP_RD         0x04000000 
#define CODEC_FLAG_QP_RD          0x08000000 
#define CODEC_FLAG_H263P_AIV      0x00000008 
#define CODEC_FLAG_OBMC           0x00000001 
#define CODEC_FLAG_LOOP_FILTER    0x00000800 
#define CODEC_FLAG_H263P_SLICE_STRUCT 0x10000000
#define CODEC_FLAG_INTERLACED_ME  0x20000000 
#define CODEC_FLAG_SVCD_SCAN_OFFSET 0x40000000 
#define CODEC_FLAG_CLOSED_GOP     0x80000000
#define CODEC_FLAG2_FAST          0x00000001 
#define CODEC_FLAG2_STRICT_GOP    0x00000002 
#define CODEC_FLAG2_NO_OUTPUT     0x00000004 
#define CODEC_FLAG2_LOCAL_HEADER  0x00000008 
#define CODEC_FLAG2_BPYRAMID      0x00000010 
#define CODEC_FLAG2_WPRED         0x00000020 
#define CODEC_FLAG2_MIXED_REFS    0x00000040 
#define CODEC_FLAG2_8X8DCT        0x00000080 
#define CODEC_FLAG2_FASTPSKIP     0x00000100 
#define CODEC_FLAG2_AUD           0x00000200 
#define CODEC_FLAG2_BRDO          0x00000400 
#define CODEC_FLAG2_INTRA_VLC     0x00000800 
#define CODEC_FLAG2_MEMC_ONLY     0x00001000 
#define CODEC_FLAG2_DROP_FRAME_TIMECODE 0x00002000 
#define CODEC_FLAG2_SKIP_RD       0x00004000 
#define CODEC_FLAG2_CHUNKS        0x00008000 
#define CODEC_FLAG2_NON_LINEAR_QUANT 0x00010000 
#define CODEC_FLAG2_BIT_RESERVOIR 0x00020000 
#define CODEC_FLAG2_MBTREE        0x00040000 
#define CODEC_FLAG2_PSY           0x00080000 
#define CODEC_FLAG2_SSIM          0x00100000 
#define CODEC_FLAG2_INTRA_REFRESH 0x00200000 

/* Unsupported options :
 *              Syntax Arithmetic coding (SAC)
 *              Reference Picture Selection
 *              Independent Segment Decoding */
/* /Fx */
/* codec capabilities */

#define CODEC_CAP_DRAW_HORIZ_BAND 0x0001 

#define CODEC_CAP_DR1             0x0002
/* If 'parse_only' field is true, then avcodec_parse_frame() can be used. */
#define CODEC_CAP_PARSE_ONLY      0x0004
#define CODEC_CAP_TRUNCATED       0x0008
/* Codec can export data for HW decoding (XvMC). */
#define CODEC_CAP_HWACCEL         0x0010

#define CODEC_CAP_DELAY           0x0020

#define CODEC_CAP_SMALL_LAST_FRAME 0x0040

#define CODEC_CAP_HWACCEL_VDPAU    0x0080

#define CODEC_CAP_SUBFRAMES        0x0100

#define CODEC_CAP_EXPERIMENTAL     0x0200

#define CODEC_CAP_CHANNEL_CONF     0x0400

#define CODEC_CAP_NEG_LINESIZES    0x0800

//The following defines may change, don't expect compatibility if you use them.
#define MB_TYPE_INTRA4x4   0x0001
#define MB_TYPE_INTRA16x16 0x0002 //FIXME H.264-specific
#define MB_TYPE_INTRA_PCM  0x0004 //FIXME H.264-specific
#define MB_TYPE_16x16      0x0008
#define MB_TYPE_16x8       0x0010
#define MB_TYPE_8x16       0x0020
#define MB_TYPE_8x8        0x0040
#define MB_TYPE_INTERLACED 0x0080
#define MB_TYPE_DIRECT2    0x0100 //FIXME
#define MB_TYPE_ACPRED     0x0200
#define MB_TYPE_GMC        0x0400
#define MB_TYPE_SKIP       0x0800
#define MB_TYPE_P0L0       0x1000
#define MB_TYPE_P1L0       0x2000
#define MB_TYPE_P0L1       0x4000
#define MB_TYPE_P1L1       0x8000
#define MB_TYPE_L0         (MB_TYPE_P0L0 | MB_TYPE_P1L0)
#define MB_TYPE_L1         (MB_TYPE_P0L1 | MB_TYPE_P1L1)
#define MB_TYPE_L0L1       (MB_TYPE_L0   | MB_TYPE_L1)
#define MB_TYPE_QUANT      0x00010000
#define MB_TYPE_CBP        0x00020000
//Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...)

typedef struct AVPanScan{
    int id;

    int width;
    int height;

    int16_t position[3][2];
}AVPanScan;

#define FF_COMMON_FRAME \
\
    uint8_t *data[4];\
    int linesize[4];\
\
    uint8_t *base[4];\
\
    int key_frame;\
\
\
    int pict_type;\
\
\
    int64_t pts;\
\
\
    int coded_picture_number;\
\
    int display_picture_number;\
\
\
    int quality; \
\
\
    int age;\
\
\
    int reference;\
\
\
    int8_t *qscale_table;\
\
    int qstride;\
\
\
    uint8_t *mbskip_table;\
\
\
    int16_t (*motion_val[2])[2];\
\
\
    uint32_t *mb_type;\
\
\
    uint8_t motion_subsample_log2;\
\
\
    void *opaque;\
\
\
    uint64_t error[4];\
\
\
    int type;\
    \
\
    int repeat_pict;\
    \
\
    int qscale_type;\
    \
\
    int interlaced_frame;\
    \
\
    int top_field_first;\
    \
\
    AVPanScan *pan_scan;\
    \
\
    int palette_has_changed;\
    \
\
    int buffer_hints;\
\
\
    short *dct_coeff;\
\
\
    int8_t *ref_index[2];\
\
\
    int64_t reordered_opaque;\
\
\
    void *hwaccel_picture_private;\
\
\
    int64_t pkt_pts;\
\
\
    int64_t pkt_dts;\


#define FF_QSCALE_TYPE_MPEG1 0
#define FF_QSCALE_TYPE_MPEG2 1
#define FF_QSCALE_TYPE_H264  2
#define FF_QSCALE_TYPE_VP56  3

#define FF_BUFFER_TYPE_INTERNAL 1
#define FF_BUFFER_TYPE_USER     2 
#define FF_BUFFER_TYPE_SHARED   4 
#define FF_BUFFER_TYPE_COPY     8 


#define FF_I_TYPE  1 
#define FF_P_TYPE  2 
#define FF_B_TYPE  3 
#define FF_S_TYPE  4 
#define FF_SI_TYPE 5 
#define FF_SP_TYPE 6 
#define FF_BI_TYPE 7

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

typedef struct AVPacket {
    int64_t pts;
    int64_t dts;
    uint8_t *data;
    int   size;
    int   stream_index;
    int   flags;
    int   duration;
    void  (*destruct)(struct AVPacket *);
    void  *priv;
    int64_t pos;                            

    int64_t convergence_duration;
} AVPacket;
#define AV_PKT_FLAG_KEY   0x0001
#if LIBAVCODEC_VERSION_MAJOR < 53
#define PKT_FLAG_KEY AV_PKT_FLAG_KEY
#endif

typedef struct AVFrame {
    FF_COMMON_FRAME
} AVFrame;

typedef struct AVCodecContext {
    const AVClass *av_class;
    int bit_rate;

    int bit_rate_tolerance;

    int flags;

    int sub_id;

    int me_method;

    uint8_t *extradata;
    int extradata_size;

    AVRational time_base;

    /* video only */
    int width, height;

#define FF_ASPECT_EXTENDED 15

    int gop_size;

    enum PixelFormat pix_fmt;

    int rate_emu;

    void (*draw_horiz_band)(struct AVCodecContext *s,
                            const AVFrame *src, int offset[4],
                            int y, int type, int height);

    /* audio only */
    int sample_rate; 
    int channels;    

    enum AVSampleFormat sample_fmt;  

    /* The following data should not be initialized. */
    int frame_size;
    int frame_number;   
#if LIBAVCODEC_VERSION_MAJOR < 53
    int real_pict_num;  
#endif

    int delay;

    /* - encoding parameters */
    float qcompress;  
    float qblur;      

    int qmin;

    int qmax;

    int max_qdiff;

    int max_b_frames;

    float b_quant_factor;

    int rc_strategy;
#define FF_RC_STRATEGY_XVID 1

    int b_frame_strategy;

    int hurry_up;

    struct AVCodec *codec;

    void *priv_data;

    int rtp_payload_size;   /* The size of the RTP payload: the coder will  */
                            /* do its best to deliver a chunk with size     */
                            /* below rtp_payload_size, the chunk will start */
                            /* with a start code on some codecs like H.263. */
                            /* This doesn't take account of any particular  */
                            /* headers inside the transmitted RTP payload.  */


    /* The RTP callback: This function is called    */
    /* every time the encoder has a packet to send. */
    /* It depends on the encoder if the data starts */
    /* with a Start Code (it should). H.263 does.   */
    /* mb_nb contains the number of macroblocks     */
    /* encoded in the RTP payload.                  */
    void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb);

    /* statistics, used for 2-pass encoding */
    int mv_bits;
    int header_bits;
    int i_tex_bits;
    int p_tex_bits;
    int i_count;
    int p_count;
    int skip_count;
    int misc_bits;

    int frame_bits;

    void *opaque;

    char codec_name[32];
    enum AVMediaType codec_type; /* see AVMEDIA_TYPE_xxx */
    enum CodecID codec_id; /* see CODEC_ID_xxx */

    unsigned int codec_tag;

    int workaround_bugs;
#define FF_BUG_AUTODETECT       1  
#define FF_BUG_OLD_MSMPEG4      2
#define FF_BUG_XVID_ILACE       4
#define FF_BUG_UMP4             8
#define FF_BUG_NO_PADDING       16
#define FF_BUG_AMV              32
#define FF_BUG_AC_VLC           0  
#define FF_BUG_QPEL_CHROMA      64
#define FF_BUG_STD_QPEL         128
#define FF_BUG_QPEL_CHROMA2     256
#define FF_BUG_DIRECT_BLOCKSIZE 512
#define FF_BUG_EDGE             1024
#define FF_BUG_HPEL_CHROMA      2048
#define FF_BUG_DC_CLIP          4096
#define FF_BUG_MS               8192 
#define FF_BUG_TRUNCATED       16384
//#define FF_BUG_FAKE_SCALABILITY 16 //Autodetection should work 100%.

    int luma_elim_threshold;

    int chroma_elim_threshold;

    int strict_std_compliance;
#define FF_COMPLIANCE_VERY_STRICT   2 
#define FF_COMPLIANCE_STRICT        1 
#define FF_COMPLIANCE_NORMAL        0
#if FF_API_INOFFICIAL
#define FF_COMPLIANCE_INOFFICIAL   -1 
#endif
#define FF_COMPLIANCE_UNOFFICIAL   -1 
#define FF_COMPLIANCE_EXPERIMENTAL -2 


    float b_quant_offset;

    int error_recognition;
#define FF_ER_CAREFUL         1
#define FF_ER_COMPLIANT       2
#define FF_ER_AGGRESSIVE      3
#define FF_ER_VERY_AGGRESSIVE 4

    int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);

    void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);

    int has_b_frames;

    int block_align;

    int parse_only; /* - decoding only: If true, only parsing is done
                       (function avcodec_parse_frame()). The frame
                       data is returned. Only MPEG codecs support this now. */

    int mpeg_quant;

    char *stats_out;

    char *stats_in;

    float rc_qsquish;

    float rc_qmod_amp;
    int rc_qmod_freq;

    RcOverride *rc_override;
    int rc_override_count;

    const char *rc_eq;

    int rc_max_rate;

    int rc_min_rate;

    int rc_buffer_size;
    float rc_buffer_aggressivity;

    float i_quant_factor;

    float i_quant_offset;

    float rc_initial_cplx;

    int dct_algo;
#define FF_DCT_AUTO    0
#define FF_DCT_FASTINT 1
#define FF_DCT_INT     2
#define FF_DCT_MMX     3
#define FF_DCT_MLIB    4
#define FF_DCT_ALTIVEC 5
#define FF_DCT_FAAN    6

    float lumi_masking;

    float temporal_cplx_masking;

    float spatial_cplx_masking;

    float p_masking;

    float dark_masking;

    int idct_algo;
#define FF_IDCT_AUTO          0
#define FF_IDCT_INT           1
#define FF_IDCT_SIMPLE        2
#define FF_IDCT_SIMPLEMMX     3
#define FF_IDCT_LIBMPEG2MMX   4
#define FF_IDCT_PS2           5
#define FF_IDCT_MLIB          6
#define FF_IDCT_ARM           7
#define FF_IDCT_ALTIVEC       8
#define FF_IDCT_SH4           9
#define FF_IDCT_SIMPLEARM     10
#define FF_IDCT_H264          11
#define FF_IDCT_VP3           12
#define FF_IDCT_IPP           13
#define FF_IDCT_XVIDMMX       14
#define FF_IDCT_CAVS          15
#define FF_IDCT_SIMPLEARMV5TE 16
#define FF_IDCT_SIMPLEARMV6   17
#define FF_IDCT_SIMPLEVIS     18
#define FF_IDCT_WMV2          19
#define FF_IDCT_FAAN          20
#define FF_IDCT_EA            21
#define FF_IDCT_SIMPLENEON    22
#define FF_IDCT_SIMPLEALPHA   23
#define FF_IDCT_BINK          24

    int slice_count;
    int *slice_offset;

    int error_concealment;
#define FF_EC_GUESS_MVS   1
#define FF_EC_DEBLOCK     2

    unsigned dsp_mask;

#if FF_API_MM_FLAGS
#define FF_MM_FORCE      AV_CPU_FLAG_FORCE
#define FF_MM_MMX        AV_CPU_FLAG_MMX
#define FF_MM_3DNOW      AV_CPU_FLAG_3DNOW
#define FF_MM_MMXEXT     AV_CPU_FLAG_MMX2
#define FF_MM_MMX2       AV_CPU_FLAG_MMX2
#define FF_MM_SSE        AV_CPU_FLAG_SSE
#define FF_MM_SSE2       AV_CPU_FLAG_SSE2
#define FF_MM_SSE2SLOW   AV_CPU_FLAG_SSE2SLOW
#define FF_MM_3DNOWEXT   AV_CPU_FLAG_3DNOWEXT
#define FF_MM_SSE3       AV_CPU_FLAG_SSE3
#define FF_MM_SSE3SLOW   AV_CPU_FLAG_SSE3SLOW
#define FF_MM_SSSE3      AV_CPU_FLAG_SSSE3
#define FF_MM_SSE4       AV_CPU_FLAG_SSE4
#define FF_MM_SSE42      AV_CPU_FLAG_SSE42
#define FF_MM_IWMMXT     AV_CPU_FLAG_IWMMXT
#define FF_MM_ALTIVEC    AV_CPU_FLAG_ALTIVEC
#endif

     int bits_per_coded_sample;

     int prediction_method;
#define FF_PRED_LEFT   0
#define FF_PRED_PLANE  1
#define FF_PRED_MEDIAN 2

    AVRational sample_aspect_ratio;

    AVFrame *coded_frame;

    int debug;
#define FF_DEBUG_PICT_INFO   1
#define FF_DEBUG_RC          2
#define FF_DEBUG_BITSTREAM   4
#define FF_DEBUG_MB_TYPE     8
#define FF_DEBUG_QP          16
#define FF_DEBUG_MV          32
#define FF_DEBUG_DCT_COEFF   0x00000040
#define FF_DEBUG_SKIP        0x00000080
#define FF_DEBUG_STARTCODE   0x00000100
#define FF_DEBUG_PTS         0x00000200
#define FF_DEBUG_ER          0x00000400
#define FF_DEBUG_MMCO        0x00000800
#define FF_DEBUG_BUGS        0x00001000
#define FF_DEBUG_VIS_QP      0x00002000
#define FF_DEBUG_VIS_MB_TYPE 0x00004000
#define FF_DEBUG_BUFFERS     0x00008000

    int debug_mv;
#define FF_DEBUG_VIS_MV_P_FOR  0x00000001 //visualize forward predicted MVs of P frames
#define FF_DEBUG_VIS_MV_B_FOR  0x00000002 //visualize forward predicted MVs of B frames
#define FF_DEBUG_VIS_MV_B_BACK 0x00000004 //visualize backward predicted MVs of B frames

    uint64_t error[4];

    int mb_qmin;

    int mb_qmax;

    int me_cmp;
    int me_sub_cmp;
    int mb_cmp;
    int ildct_cmp;
#define FF_CMP_SAD    0
#define FF_CMP_SSE    1
#define FF_CMP_SATD   2
#define FF_CMP_DCT    3
#define FF_CMP_PSNR   4
#define FF_CMP_BIT    5
#define FF_CMP_RD     6
#define FF_CMP_ZERO   7
#define FF_CMP_VSAD   8
#define FF_CMP_VSSE   9
#define FF_CMP_NSSE   10
#define FF_CMP_W53    11
#define FF_CMP_W97    12
#define FF_CMP_DCTMAX 13
#define FF_CMP_DCT264 14
#define FF_CMP_CHROMA 256

    int dia_size;

    int last_predictor_count;

    int pre_me;

    int me_pre_cmp;

    int pre_dia_size;

    int me_subpel_quality;

    enum PixelFormat (*get_format)(struct AVCodecContext *s, const enum PixelFormat * fmt);

    int dtg_active_format;
#define FF_DTG_AFD_SAME         8
#define FF_DTG_AFD_4_3          9
#define FF_DTG_AFD_16_9         10
#define FF_DTG_AFD_14_9         11
#define FF_DTG_AFD_4_3_SP_14_9  13
#define FF_DTG_AFD_16_9_SP_14_9 14
#define FF_DTG_AFD_SP_4_3       15

    int me_range;

    int intra_quant_bias;
#define FF_DEFAULT_QUANT_BIAS 999999

    int inter_quant_bias;

    int color_table_id;

    int internal_buffer_count;

    void *internal_buffer;

    int global_quality;

#define FF_CODER_TYPE_VLC       0
#define FF_CODER_TYPE_AC        1
#define FF_CODER_TYPE_RAW       2
#define FF_CODER_TYPE_RLE       3
#define FF_CODER_TYPE_DEFLATE   4

    int coder_type;

    int context_model;
#if 0

    uint8_t * (*realloc)(struct AVCodecContext *s, uint8_t *buf, int buf_size);
#endif

    int slice_flags;
#define SLICE_FLAG_CODED_ORDER    0x0001 
#define SLICE_FLAG_ALLOW_FIELD    0x0002 
#define SLICE_FLAG_ALLOW_PLANE    0x0004 


    int xvmc_acceleration;

    int mb_decision;
#define FF_MB_DECISION_SIMPLE 0        
#define FF_MB_DECISION_BITS   1        
#define FF_MB_DECISION_RD     2        


    uint16_t *intra_matrix;

    uint16_t *inter_matrix;

    unsigned int stream_codec_tag;

    int scenechange_threshold;

    int lmin;

    int lmax;

#if FF_API_PALETTE_CONTROL

    struct AVPaletteControl *palctrl;
#endif

    int noise_reduction;

    int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);

    int rc_initial_buffer_occupancy;

    int inter_threshold;

    int flags2;

    int error_rate;

    int antialias_algo;
#define FF_AA_AUTO    0
#define FF_AA_FASTINT 1 //not implemented yet
#define FF_AA_INT     2
#define FF_AA_FLOAT   3

    int quantizer_noise_shaping;

    int thread_count;

    int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void *arg2, int *ret, int count, int size);

    void *thread_opaque;

     int me_threshold;

     int mb_threshold;

     int intra_dc_precision;

     int nsse_weight;

     int skip_top;

     int skip_bottom;

     int profile;
#define FF_PROFILE_UNKNOWN -99

#define FF_PROFILE_AAC_MAIN 0
#define FF_PROFILE_AAC_LOW  1
#define FF_PROFILE_AAC_SSR  2
#define FF_PROFILE_AAC_LTP  3

#define FF_PROFILE_DTS         20
#define FF_PROFILE_DTS_ES      30
#define FF_PROFILE_DTS_96_24   40
#define FF_PROFILE_DTS_HD_HRA  50
#define FF_PROFILE_DTS_HD_MA   60

#define FF_PROFILE_H264_BASELINE    66
#define FF_PROFILE_H264_MAIN        77
#define FF_PROFILE_H264_EXTENDED    88
#define FF_PROFILE_H264_HIGH        100
#define FF_PROFILE_H264_HIGH_10     110
#define FF_PROFILE_H264_HIGH_422    122
#define FF_PROFILE_H264_HIGH_444    244
#define FF_PROFILE_H264_CAVLC_444   44

     int level;
#define FF_LEVEL_UNKNOWN -99

     int lowres;

    int coded_width, coded_height;

    int frame_skip_threshold;

    int frame_skip_factor;

    int frame_skip_exp;

    int frame_skip_cmp;

    float border_masking;

    int mb_lmin;

    int mb_lmax;

    int me_penalty_compensation;

    enum AVDiscard skip_loop_filter;

    enum AVDiscard skip_idct;

    enum AVDiscard skip_frame;

    int bidir_refine;

    int brd_scale;

    float crf;

    int cqp;

    int keyint_min;

    int refs;

    int chromaoffset;

    int bframebias;

    int trellis;

    float complexityblur;

    int deblockalpha;

    int deblockbeta;

    int partitions;
#define X264_PART_I4X4 0x001  /* Analyze i4x4 */
#define X264_PART_I8X8 0x002  /* Analyze i8x8 (requires 8x8 transform) */
#define X264_PART_P8X8 0x010  /* Analyze p16x8, p8x16 and p8x8 */
#define X264_PART_P4X4 0x020  /* Analyze p8x4, p4x8, p4x4 */
#define X264_PART_B8X8 0x100  /* Analyze b16x8, b8x16 and b8x8 */

    int directpred;

    int cutoff;

    int scenechange_factor;

    int mv0_threshold;

    int b_sensitivity;

    int compression_level;
#define FF_COMPRESSION_DEFAULT -1

#if FF_API_USE_LPC

    int use_lpc;
#endif

    int lpc_coeff_precision;

    int min_prediction_order;

    int max_prediction_order;

    int prediction_order_method;

    int min_partition_order;

    int max_partition_order;

    int64_t timecode_frame_start;

#if LIBAVCODEC_VERSION_MAJOR < 53

    int request_channels;
#endif

    float drc_scale;

    int64_t reordered_opaque;

    int bits_per_raw_sample;

    int64_t channel_layout;

    int64_t request_channel_layout;

    float rc_max_available_vbv_use;

    float rc_min_vbv_overflow_use;

    struct AVHWAccel *hwaccel;

    int ticks_per_frame;

    void *hwaccel_context;

    enum AVColorPrimaries color_primaries;

    enum AVColorTransferCharacteristic color_trc;

    enum AVColorSpace colorspace;

    enum AVColorRange color_range;

    enum AVChromaLocation chroma_sample_location;

    int (*execute2)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg, int jobnr, int threadnr), void *arg2, int *ret, int count);

    int weighted_p_pred;

    int aq_mode;

    float aq_strength;

    float psy_rd;

    float psy_trellis;

    int rc_lookahead;

    float crf_max;

    int log_level_offset;

    enum AVLPCType lpc_type;

    int lpc_passes;

    int slices;

    uint8_t *subtitle_header;
    int subtitle_header_size;

    AVPacket *pkt;
} AVCodecContext;

typedef struct AVProfile {
    int profile;
    const char *name; 
} AVProfile;

typedef struct AVCodec {
    const char *name;
    enum AVMediaType type;
    enum CodecID id;
    int priv_data_size;
    int (*init)(AVCodecContext *);
    int (*encode)(AVCodecContext *, uint8_t *buf, int buf_size, void *data);
    int (*close)(AVCodecContext *);
    int (*decode)(AVCodecContext *, void *outdata, int *outdata_size, AVPacket *avpkt);
    int capabilities;
    struct AVCodec *next;
    void (*flush)(AVCodecContext *);
    const AVRational *supported_framerates; 
    const enum PixelFormat *pix_fmts;       

    const char *long_name;
    const int *supported_samplerates;       
    const enum AVSampleFormat *sample_fmts; 
    const int64_t *channel_layouts;         
    uint8_t max_lowres;                     
    AVClass *priv_class;                    
    const AVProfile *profiles;              
} AVCodec;

typedef struct AVHWAccel {
    const char *name;

    enum AVMediaType type;

    enum CodecID id;

    enum PixelFormat pix_fmt;

    int capabilities;

    struct AVHWAccel *next;

    int (*start_frame)(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size);

    int (*decode_slice)(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size);

    int (*end_frame)(AVCodecContext *avctx);

    int priv_data_size;
} AVHWAccel;

typedef struct AVPicture {
    uint8_t *data[4];
    int linesize[4];       
} AVPicture;

#if FF_API_PALETTE_CONTROL

#define AVPALETTE_SIZE 1024
#define AVPALETTE_COUNT 256
typedef struct AVPaletteControl {

    /* Demuxer sets this to 1 to indicate the palette has changed;
     * decoder resets to 0. */
    int palette_changed;

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

} AVPaletteControl attribute_deprecated;
#endif

enum AVSubtitleType {
    SUBTITLE_NONE,

    SUBTITLE_BITMAP,                

    SUBTITLE_TEXT,

    SUBTITLE_ASS,
};

typedef struct AVSubtitleRect {
    int x;         
    int y;         
    int w;         
    int h;         
    int nb_colors; 

    AVPicture pict;
    enum AVSubtitleType type;

    char *text;                     

    char *ass;
} AVSubtitleRect;

typedef struct AVSubtitle {
    uint16_t format; /* 0 = graphics */
    uint32_t start_display_time; /* relative to packet pts, in ms */
    uint32_t end_display_time; /* relative to packet pts, in ms */
    unsigned num_rects;
    AVSubtitleRect **rects;
    int64_t pts;    
} AVSubtitle;

/* packet functions */

attribute_deprecated void av_destruct_packet_nofree(AVPacket *pkt);

void av_destruct_packet(AVPacket *pkt);

void av_init_packet(AVPacket *pkt);

int av_new_packet(AVPacket *pkt, int size);

void av_shrink_packet(AVPacket *pkt, int size);

int av_grow_packet(AVPacket *pkt, int grow_by);

int av_dup_packet(AVPacket *pkt);

void av_free_packet(AVPacket *pkt);

/* resample.c */

struct ReSampleContext;
struct AVResampleContext;

typedef struct ReSampleContext ReSampleContext;

#if FF_API_AUDIO_OLD

attribute_deprecated ReSampleContext *audio_resample_init(int output_channels, int input_channels,
                                                          int output_rate, int input_rate);
#endif

ReSampleContext *av_audio_resample_init(int output_channels, int input_channels,
                                        int output_rate, int input_rate,
                                        enum AVSampleFormat sample_fmt_out,
                                        enum AVSampleFormat sample_fmt_in,
                                        int filter_length, int log2_phase_count,
                                        int linear, double cutoff);

int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples);
void audio_resample_close(ReSampleContext *s);


struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff);

int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx);


void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance);
void av_resample_close(struct AVResampleContext *c);

int avpicture_alloc(AVPicture *picture, enum PixelFormat pix_fmt, int width, int height);

void avpicture_free(AVPicture *picture);

int avpicture_fill(AVPicture *picture, uint8_t *ptr,
                   enum PixelFormat pix_fmt, int width, int height);
int avpicture_layout(const AVPicture* src, enum PixelFormat pix_fmt, int width, int height,
                     unsigned char *dest, int dest_size);

int avpicture_get_size(enum PixelFormat pix_fmt, int width, int height);
void avcodec_get_chroma_sub_sample(enum PixelFormat pix_fmt, int *h_shift, int *v_shift);
const char *avcodec_get_pix_fmt_name(enum PixelFormat pix_fmt);
void avcodec_set_dimensions(AVCodecContext *s, int width, int height);

#if LIBAVCODEC_VERSION_MAJOR < 53

attribute_deprecated enum PixelFormat avcodec_get_pix_fmt(const char* name);
#endif

unsigned int avcodec_pix_fmt_to_codec_tag(enum PixelFormat pix_fmt);

size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag);

#define FF_LOSS_RESOLUTION  0x0001 
#define FF_LOSS_DEPTH       0x0002 
#define FF_LOSS_COLORSPACE  0x0004 
#define FF_LOSS_ALPHA       0x0008 
#define FF_LOSS_COLORQUANT  0x0010 
#define FF_LOSS_CHROMA      0x0020 
int avcodec_get_pix_fmt_loss(enum PixelFormat dst_pix_fmt, enum PixelFormat src_pix_fmt,
                             int has_alpha);

enum PixelFormat avcodec_find_best_pix_fmt(int64_t pix_fmt_mask, enum PixelFormat src_pix_fmt,
                              int has_alpha, int *loss_ptr);

#if LIBAVCODEC_VERSION_MAJOR < 53

attribute_deprecated
void avcodec_pix_fmt_string (char *buf, int buf_size, enum PixelFormat pix_fmt);
#endif

#define FF_ALPHA_TRANSP       0x0001 /* image has some totally transparent pixels */
#define FF_ALPHA_SEMI_TRANSP  0x0002 /* image has some transparent pixels */

int img_get_alpha_info(const AVPicture *src,
                       enum PixelFormat pix_fmt, int width, int height);

/* deinterlace a picture */
/* deinterlace - if not supported return -1 */
int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
                          enum PixelFormat pix_fmt, int width, int height);

/* external high level API */

AVCodec *av_codec_next(AVCodec *c);

unsigned avcodec_version(void);

const char *avcodec_configuration(void);

const char *avcodec_license(void);

void avcodec_init(void);

#if LIBAVCODEC_VERSION_MAJOR < 53

attribute_deprecated void register_avcodec(AVCodec *codec);
#endif

void avcodec_register(AVCodec *codec);

AVCodec *avcodec_find_encoder(enum CodecID id);

AVCodec *avcodec_find_encoder_by_name(const char *name);

AVCodec *avcodec_find_decoder(enum CodecID id);

AVCodec *avcodec_find_decoder_by_name(const char *name);
void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode);

const char *av_get_profile_name(const AVCodec *codec, int profile);

void avcodec_get_context_defaults(AVCodecContext *s);

void avcodec_get_context_defaults2(AVCodecContext *s, enum AVMediaType);

int avcodec_get_context_defaults3(AVCodecContext *s, AVCodec *codec);

AVCodecContext *avcodec_alloc_context(void);

AVCodecContext *avcodec_alloc_context2(enum AVMediaType);

AVCodecContext *avcodec_alloc_context3(AVCodec *codec);

int avcodec_copy_context(AVCodecContext *dest, const AVCodecContext *src);

void avcodec_get_frame_defaults(AVFrame *pic);

AVFrame *avcodec_alloc_frame(void);

int avcodec_default_get_buffer(AVCodecContext *s, AVFrame *pic);
void avcodec_default_release_buffer(AVCodecContext *s, AVFrame *pic);
int avcodec_default_reget_buffer(AVCodecContext *s, AVFrame *pic);

unsigned avcodec_get_edge_width(void);
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);
void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height,
                               int linesize_align[4]);

#if LIBAVCODEC_VERSION_MAJOR < 53

attribute_deprecated
int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h);
#endif

enum PixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum PixelFormat * fmt);

int avcodec_thread_init(AVCodecContext *s, int thread_count);
void avcodec_thread_free(AVCodecContext *s);
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void *arg, int *ret, int count, int size);
int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int, int),void *arg, int *ret, int count);
//FIXME func typedef

int avcodec_open(AVCodecContext *avctx, AVCodec *codec);

#if FF_API_AUDIO_OLD

attribute_deprecated int avcodec_decode_audio2(AVCodecContext *avctx, int16_t *samples,
                         int *frame_size_ptr,
                         const uint8_t *buf, int buf_size);
#endif

int avcodec_decode_audio3(AVCodecContext *avctx, int16_t *samples,
                         int *frame_size_ptr,
                         AVPacket *avpkt);

#if FF_API_VIDEO_OLD

attribute_deprecated int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
                         int *got_picture_ptr,
                         const uint8_t *buf, int buf_size);
#endif

int avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture,
                         int *got_picture_ptr,
                         AVPacket *avpkt);

#if FF_API_SUBTITLE_OLD
/* Decode a subtitle message. Return -1 if error, otherwise return the
 * number of bytes used. If no subtitle could be decompressed,
 * got_sub_ptr is zero. Otherwise, the subtitle is stored in *sub. */
attribute_deprecated int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
                            int *got_sub_ptr,
                            const uint8_t *buf, int buf_size);
#endif

int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub,
                            int *got_sub_ptr,
                            AVPacket *avpkt);

void avsubtitle_free(AVSubtitle *sub);

int avcodec_parse_frame(AVCodecContext *avctx, uint8_t **pdata,
                        int *data_size_ptr,
                        uint8_t *buf, int buf_size);

int avcodec_encode_audio(AVCodecContext *avctx, uint8_t *buf, int buf_size,
                         const short *samples);

int avcodec_encode_video(AVCodecContext *avctx, uint8_t *buf, int buf_size,
                         const AVFrame *pict);
int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size,
                            const AVSubtitle *sub);

int avcodec_close(AVCodecContext *avctx);

void avcodec_register_all(void);

void avcodec_flush_buffers(AVCodecContext *avctx);

void avcodec_default_free_buffers(AVCodecContext *s);

/* misc useful functions */

char av_get_pict_type_char(int pict_type);

int av_get_bits_per_sample(enum CodecID codec_id);

#if FF_API_OLD_SAMPLE_FMT

attribute_deprecated
int av_get_bits_per_sample_format(enum AVSampleFormat sample_fmt);
#endif

/* frame parsing */
typedef struct AVCodecParserContext {
    void *priv_data;
    struct AVCodecParser *parser;
    int64_t frame_offset; /* offset of the current frame */
    int64_t cur_offset; /* current offset
                           (incremented by each av_parser_parse()) */
    int64_t next_frame_offset; /* offset of the next frame */
    /* video info */
    int pict_type; /* XXX: Put it back in AVCodecContext. */
    int repeat_pict; /* XXX: Put it back in AVCodecContext. */
    int64_t pts;     /* pts of the current frame */
    int64_t dts;     /* dts of the current frame */

    /* private data */
    int64_t last_pts;
    int64_t last_dts;
    int fetch_timestamp;

#define AV_PARSER_PTS_NB 4
    int cur_frame_start_index;
    int64_t cur_frame_offset[AV_PARSER_PTS_NB];
    int64_t cur_frame_pts[AV_PARSER_PTS_NB];
    int64_t cur_frame_dts[AV_PARSER_PTS_NB];

    int flags;
#define PARSER_FLAG_COMPLETE_FRAMES           0x0001
#define PARSER_FLAG_ONCE                      0x0002
#define PARSER_FLAG_FETCHED_OFFSET            0x0004

    int64_t offset;      
    int64_t cur_frame_end[AV_PARSER_PTS_NB];

    int key_frame;

    int64_t convergence_duration;

    // Timestamp generation support:
    int dts_sync_point;

    int dts_ref_dts_delta;

    int pts_dts_delta;

    int64_t cur_frame_pos[AV_PARSER_PTS_NB];

    int64_t pos;

    int64_t last_pos;
} AVCodecParserContext;

typedef struct AVCodecParser {
    int codec_ids[5]; /* several codec IDs are permitted */
    int priv_data_size;
    int (*parser_init)(AVCodecParserContext *s);
    int (*parser_parse)(AVCodecParserContext *s,
                        AVCodecContext *avctx,
                        const uint8_t **poutbuf, int *poutbuf_size,
                        const uint8_t *buf, int buf_size);
    void (*parser_close)(AVCodecParserContext *s);
    int (*split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size);
    struct AVCodecParser *next;
} AVCodecParser;

AVCodecParser *av_parser_next(AVCodecParser *c);

void av_register_codec_parser(AVCodecParser *parser);
AVCodecParserContext *av_parser_init(int codec_id);

#if LIBAVCODEC_VERSION_MAJOR < 53
attribute_deprecated
int av_parser_parse(AVCodecParserContext *s,
                    AVCodecContext *avctx,
                    uint8_t **poutbuf, int *poutbuf_size,
                    const uint8_t *buf, int buf_size,
                    int64_t pts, int64_t dts);
#endif

int av_parser_parse2(AVCodecParserContext *s,
                     AVCodecContext *avctx,
                     uint8_t **poutbuf, int *poutbuf_size,
                     const uint8_t *buf, int buf_size,
                     int64_t pts, int64_t dts,
                     int64_t pos);

int av_parser_change(AVCodecParserContext *s,
                     AVCodecContext *avctx,
                     uint8_t **poutbuf, int *poutbuf_size,
                     const uint8_t *buf, int buf_size, int keyframe);
void av_parser_close(AVCodecParserContext *s);


typedef struct AVBitStreamFilterContext {
    void *priv_data;
    struct AVBitStreamFilter *filter;
    AVCodecParserContext *parser;
    struct AVBitStreamFilterContext *next;
} AVBitStreamFilterContext;


typedef struct AVBitStreamFilter {
    const char *name;
    int priv_data_size;
    int (*filter)(AVBitStreamFilterContext *bsfc,
                  AVCodecContext *avctx, const char *args,
                  uint8_t **poutbuf, int *poutbuf_size,
                  const uint8_t *buf, int buf_size, int keyframe);
    void (*close)(AVBitStreamFilterContext *bsfc);
    struct AVBitStreamFilter *next;
} AVBitStreamFilter;

void av_register_bitstream_filter(AVBitStreamFilter *bsf);
AVBitStreamFilterContext *av_bitstream_filter_init(const char *name);
int av_bitstream_filter_filter(AVBitStreamFilterContext *bsfc,
                               AVCodecContext *avctx, const char *args,
                               uint8_t **poutbuf, int *poutbuf_size,
                               const uint8_t *buf, int buf_size, int keyframe);
void av_bitstream_filter_close(AVBitStreamFilterContext *bsf);

AVBitStreamFilter *av_bitstream_filter_next(AVBitStreamFilter *f);

/* memory */

void *av_fast_realloc(void *ptr, unsigned int *size, FF_INTERNALC_MEM_TYPE min_size);

void av_fast_malloc(void *ptr, unsigned int *size, FF_INTERNALC_MEM_TYPE min_size);

#if LIBAVCODEC_VERSION_MAJOR < 53

attribute_deprecated
void av_picture_data_copy(uint8_t *dst_data[4], int dst_linesize[4],
                          uint8_t *src_data[4], int src_linesize[4],
                          enum PixelFormat pix_fmt, int width, int height);
#endif

void av_picture_copy(AVPicture *dst, const AVPicture *src,
                     enum PixelFormat pix_fmt, int width, int height);

int av_picture_crop(AVPicture *dst, const AVPicture *src,
                    enum PixelFormat pix_fmt, int top_band, int left_band);

int av_picture_pad(AVPicture *dst, const AVPicture *src, int height, int width, enum PixelFormat pix_fmt,
            int padtop, int padbottom, int padleft, int padright, int *color);

unsigned int av_xiphlacing(unsigned char *s, unsigned int v);

#if LIBAVCODEC_VERSION_MAJOR < 53

attribute_deprecated int av_parse_video_frame_size(int *width_ptr, int *height_ptr, const char *str);

attribute_deprecated int av_parse_video_frame_rate(AVRational *frame_rate, const char *str);
#endif

void av_log_missing_feature(void *avc, const char *feature, int want_sample);

void av_log_ask_for_sample(void *avc, const char *msg);

void av_register_hwaccel(AVHWAccel *hwaccel);

AVHWAccel *av_hwaccel_next(AVHWAccel *hwaccel);


enum AVLockOp {
  AV_LOCK_CREATE,  
  AV_LOCK_OBTAIN,  
  AV_LOCK_RELEASE, 
  AV_LOCK_DESTROY, 
};

int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op));

#endif /* AVCODEC_AVCODEC_H */

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