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 FFMPEG_AVCODEC_H
#define FFMPEG_AVCODEC_H

#include "avutil.h"
#include <sys/types.h> /* size_t */

#define AV_STRINGIFY(s)         AV_TOSTRING(s)
#define AV_TOSTRING(s) #s

#define LIBAVCODEC_VERSION_INT  ((51<<16)+(48<<8)+0)
#define LIBAVCODEC_VERSION      51.48.0
#define LIBAVCODEC_BUILD        LIBAVCODEC_VERSION_INT

#define LIBAVCODEC_IDENT        "Lavc" AV_STRINGIFY(LIBAVCODEC_VERSION)

#define AV_NOPTS_VALUE          INT64_C(0x8000000000000000)
#define AV_TIME_BASE            1000000
#define AV_TIME_BASE_Q          (AVRational){1, AV_TIME_BASE}

enum CodecID {
    CODEC_ID_NONE,
    CODEC_ID_MPEG1VIDEO,
    CODEC_ID_MPEG2VIDEO, /* preferred ID for MPEG-1/2 video decoding */
    CODEC_ID_MPEG2VIDEO_XVMC,
    CODEC_ID_MPEG2VIDEO_XVMC_VLD,
    CODEC_ID_MPEG2VIDEO_DVDV,
    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,
    CODEC_ID_XVID,
    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,

    /* 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,

    /* 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,

    /* 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,

    CODEC_ID_MP2= 0x15000,
    CODEC_ID_MP3, /* preferred ID for decoding MPEG audio layer 1, 2 or 3 */
    CODEC_ID_AAC,
#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0)
    CODEC_ID_MPEG4AAC,
#endif
    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, /* as in Berlin toast format */
    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,

    /* subtitle codecs */
    CODEC_ID_DVD_SUBTITLE= 0x17000,
    CODEC_ID_DVB_SUBTITLE,
    CODEC_ID_TEXT,  /* raw UTF-8 text */
    CODEC_ID_XSUB,

    /* teletext codecs */
    CODEC_ID_MPEG2VBI,
    CODEC_ID_DVB_VBI,

    /* DSMCC codec */
    CODEC_ID_DSMCC_B,

    CODEC_ID_MPEG2TS= 0x20000, /* _FAKE_ codec to indicate a raw MPEG-2 TS
                                * stream (only used by libavformat) */
};

#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0)
/* CODEC_ID_MP3LAME is obsolete */
#define CODEC_ID_MP3LAME CODEC_ID_MP3
#define CODEC_ID_MPEG4AAC CODEC_ID_AAC
#endif

enum CodecType {
    CODEC_TYPE_UNKNOWN = -1,
    CODEC_TYPE_VIDEO,
    CODEC_TYPE_AUDIO,
    CODEC_TYPE_DATA,
    CODEC_TYPE_SUBTITLE,
    CODEC_TYPE_NB
};

/* Currently unused, may be used if 24/32 bits samples are ever supported. */
/* all in native-endian format */
enum SampleFormat {
    SAMPLE_FMT_NONE = -1,
    SAMPLE_FMT_U8,              
    SAMPLE_FMT_S16,             
    SAMPLE_FMT_S24,             
    SAMPLE_FMT_S32,             
    SAMPLE_FMT_FLT,             
};

/* 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

/* motion estimation type, EPZS by default */
enum Motion_Est_ID {
    ME_ZERO = 1,
    ME_FULL,
    ME_LOG,
    ME_PHODS,
    ME_EPZS,
    ME_X1,
    ME_HEX,
    ME_UMH,
    ME_ITER,
};

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, 
};

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  
/* The parent program guarantees that the input for B-frames containing
 * streams is not written to for at least s->max_b_frames+1 frames, if
 * this is not set the input will be copied. */
#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_TRELLIS_QUANT  0x00200000 
#define CODEC_FLAG_GLOBAL_HEADER  0x00400000 
#define CODEC_FLAG_BITEXACT       0x00800000 
/* Fx : Flag for h263+ extra options */
#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0)
#define CODEC_FLAG_H263P_AIC      0x01000000 
#endif
#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     ((int)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 

/* 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

//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];\
\
\
    uint8_t atsc_cc_buf[1024];\
    int atsc_cc_len;\
\
\
    uint8_t dvb_cc_buf[128];\
    int dvb_cc_len;\
\

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

#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 // Intra
#define FF_P_TYPE  2 // Predicted
#define FF_B_TYPE  3 // Bi-dir predicted
#define FF_S_TYPE  4 // S(GMC)-VOP MPEG4
#define FF_SI_TYPE 5
#define FF_SP_TYPE 6

#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 AVFrame {
    FF_COMMON_FRAME
} AVFrame;

#define DEFAULT_FRAME_RATE_BASE 1001000

typedef struct AVCodecContext {
    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 SampleFormat sample_fmt;  

    /* The following data should not be initialized. */
    int frame_size;
    int frame_number;   
    int real_pict_num;  

    int delay;

    int avcodec_dual_language;

    /* - 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;

#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0)
    /* unused, FIXME remove*/
    int rtp_mode;
#endif

    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 CodecType codec_type; /* see CODEC_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_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
#define FF_COMPLIANCE_INOFFICIAL   -1 
#define FF_COMPLIANCE_EXPERIMENTAL -2 


    float b_quant_offset;

    int error_resilience;
#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;

    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;


    /* for binary compatibility */
    int unused;

    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

    int slice_count;
    int *slice_offset;

    int error_concealment;
#define FF_EC_GUESS_MVS   1
#define FF_EC_DEBLOCK     2

    unsigned dsp_mask;
#define FF_MM_FORCE    0x80000000 /* Force usage of selected flags (OR) */
    /* lower 16 bits - CPU features */
#define FF_MM_MMX      0x0001 /* standard MMX */
#define FF_MM_3DNOW    0x0004 /* AMD 3DNOW */
#define FF_MM_MMXEXT   0x0002 /* SSE integer functions or AMD MMX ext */
#define FF_MM_SSE      0x0008 /* SSE functions */
#define FF_MM_SSE2     0x0010 /* PIV SSE2 functions */
#define FF_MM_3DNOWEXT 0x0020 /* AMD 3DNowExt */
#define FF_MM_SSE3     0x0040 /* Prescott SSE3 functions */
#define FF_MM_SSSE3    0x0080 /* Conroe SSSE3 functions */
#define FF_MM_IWMMXT   0x0100 /* XScale IWMMXT */

     int bits_per_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

    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;

#define FF_LAMBDA_SHIFT 7
#define FF_LAMBDA_SCALE (1<<FF_LAMBDA_SHIFT)
#define FF_QP2LAMBDA 118 
#define FF_LAMBDA_MAX (256*128-1)

#define FF_QUALITY_SCALE FF_LAMBDA_SCALE //FIXME maybe remove

    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;

    struct AVPaletteControl *palctrl;

    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);

    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

     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  /* Analyse i4x4 */
#define X264_PART_I8X8 0x002  /* Analyse i8x8 (requires 8x8 transform) */
#define X264_PART_P8X8 0x010  /* Analyse p16x8, p8x16 and p8x8 */
#define X264_PART_P4X4 0x020  /* Analyse p8x4, p4x8, p4x4 */
#define X264_PART_B8X8 0x100  /* Analyse 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

    int use_lpc;

    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;

    int request_channels;
    int xvmc_vld_hwslice;

    void (*decode_cc_dvd)(struct AVCodecContext *c, const uint8_t *buf, int buf_size);

    void *dvdv;  /* This is actually a pointer to a DVDV_CurPtrs */
} AVCodecContext;

typedef struct AVCodec {
    const char *name;
    enum CodecType 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,
                  uint8_t *buf, int buf_size);
    int capabilities;
    struct AVCodec *next;
    void (*flush)(AVCodecContext *);
    const AVRational *supported_framerates; 
    const enum PixelFormat *pix_fmts;       
} AVCodec;

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

#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;

typedef struct AVSubtitleRect {
    uint16_t x;
    uint16_t y;
    uint16_t w;
    uint16_t h;
    uint16_t nb_colors;
    int linesize;
    uint32_t *rgba_palette;
    uint8_t *bitmap;
} 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 */
    uint32_t num_rects;
    AVSubtitleRect *rects;
} AVSubtitle;


/* resample.c */

struct ReSampleContext;
struct AVResampleContext;

typedef struct ReSampleContext ReSampleContext;

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

#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0)
/* YUV420 format is assumed ! */

typedef struct ImgReSampleContext ImgReSampleContext attribute_deprecated;

attribute_deprecated ImgReSampleContext *img_resample_init(int output_width, int output_height,
                                      int input_width, int input_height);

attribute_deprecated ImgReSampleContext *img_resample_full_init(int owidth, int oheight,
                                      int iwidth, int iheight,
                                      int topBand, int bottomBand,
                                      int leftBand, int rightBand,
                                      int padtop, int padbottom,
                                      int padleft, int padright);

attribute_deprecated void img_resample(struct ImgReSampleContext *s,
                  AVPicture *output, const AVPicture *input);

attribute_deprecated void img_resample_close(struct ImgReSampleContext *s);

#endif

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

void avpicture_free(AVPicture *picture);

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

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

#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(int dst_pix_fmt, int src_pix_fmt,
                             int has_alpha);

int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
                              int has_alpha, int *loss_ptr);


void avcodec_pix_fmt_string (char *buf, int buf_size, int pix_fmt);

#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,
                       int pix_fmt, int width, int height);

#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0)

attribute_deprecated int img_convert(AVPicture *dst, int dst_pix_fmt,
                const AVPicture *src, int pix_fmt,
                int width, int height);
#endif

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

/* external high level API */

extern AVCodec *first_avcodec;

/* returns LIBAVCODEC_VERSION_INT constant */
unsigned avcodec_version(void);
/* returns LIBAVCODEC_BUILD constant */
unsigned avcodec_build(void);

void avcodec_init(void);

void register_avcodec(AVCodec *format);

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);

void avcodec_get_context_defaults(AVCodecContext *s);

void avcodec_get_context_defaults2(AVCodecContext *s, enum CodecType);

AVCodecContext *avcodec_alloc_context(void);

AVCodecContext *avcodec_alloc_context2(enum CodecType);

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);
void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height);

int avcodec_check_dimensions(void *av_log_ctx, unsigned int w, unsigned int h);
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_thread_execute(AVCodecContext *s, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void **arg, int *ret, int count);
//FIXME func typedef

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

attribute_deprecated int avcodec_decode_audio(AVCodecContext *avctx, int16_t *samples,
                         int *frame_size_ptr,
                         uint8_t *buf, int buf_size);

int avcodec_decode_audio2(AVCodecContext *avctx, int16_t *samples,
                         int *frame_size_ptr,
                         uint8_t *buf, int buf_size);

int avcodec_decode_video(AVCodecContext *avctx, AVFrame *picture,
                         int *got_picture_ptr,
                         uint8_t *buf, int buf_size);

/* 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. */
int avcodec_decode_subtitle(AVCodecContext *avctx, AVSubtitle *sub,
                            int *got_sub_ptr,
                            const uint8_t *buf, int buf_size);
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);

int av_get_bits_per_sample_format(enum SampleFormat sample_fmt);

/* 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 last_frame_offset; /* offset of the last 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

    int64_t offset;      
    int64_t last_offset;
} 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;

extern AVCodecParser *av_first_parser;

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


/* memory */

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

/* for static data only */

attribute_deprecated void av_free_static(void);

attribute_deprecated void *av_mallocz_static(unsigned int size);

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

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

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

#if LIBAVCODEC_VERSION_INT < ((52<<16)+(0<<8)+0)

attribute_deprecated void img_copy(AVPicture *dst, const AVPicture *src,
              int pix_fmt, int width, int height);

attribute_deprecated int img_crop(AVPicture *dst, const AVPicture *src,
             int pix_fmt, int top_band, int left_band);

attribute_deprecated int img_pad(AVPicture *dst, const AVPicture *src, int height, int width, int pix_fmt,
            int padtop, int padbottom, int padleft, int padright, int *color);
#endif

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

void avcodec_default_decode_cc_dvd(AVCodecContext *c, const uint8_t *buf, int buf_size);
void avcodec_default_decode_cc_atsc(AVCodecContext *c, const uint8_t *buf, int buf_size);
const char *codec_id_string(enum CodecID codec_id);
const char *codec_type_string(enum CodecType codec_type);

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

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

/* error handling */
#if EINVAL > 0
#define AVERROR(e) (-(e)) 
#define AVUNERROR(e) (-(e)) 
#else
/* Some platforms have E* and errno already negated. */
#define AVERROR(e) (e)
#define AVUNERROR(e) (e)
#endif
#define AVERROR_UNKNOWN     AVERROR(EINVAL)  
#define AVERROR_IO          AVERROR(EIO)     
#define AVERROR_NUMEXPECTED AVERROR(EDOM)    
#define AVERROR_INVALIDDATA AVERROR(EINVAL)  
#define AVERROR_NOMEM       AVERROR(ENOMEM)  
#define AVERROR_NOFMT       AVERROR(EILSEQ)  
#define AVERROR_NOTSUPP     AVERROR(ENOSYS)  
#define AVERROR_NOENT       AVERROR(ENOENT)  
#define AVERROR_PATCHWELCOME    -MKTAG('P','A','W','E') 
#endif /* FFMPEG_AVCODEC_H */

---