1153 typedef struct AVCodecContext {  struct
1158     const AVClass *av_class;
1159     int log_level_offset;
1161     enum AVMediaType codec_type; /* see AVMEDIA_TYPE_xxx */
1162     const struct AVCodec  *codec;
1163     char             codec_name[32];
1164     enum AVCodecID     codec_id; /* see AV_CODEC_ID_xxx */
1179     unsigned int codec_tag;
1187     unsigned int stream_codec_tag;
1189     void *priv_data;
1197     struct AVCodecInternal *internal;
1204     void *opaque;
1211     int bit_rate;
1219     int bit_rate_tolerance;
1227     int global_quality;
1233     int compression_level;
1241     int flags;
1248     int flags2;
1261     uint8_t *extradata;
1262     int extradata_size;
1272     AVRational time_base;
1281     int ticks_per_frame;
1309     int delay;
1321     int width, height;
1331     int coded_width, coded_height;
1340     int gop_size;
1349     enum AVPixelFormat pix_fmt;
1358     int me_method;
1383     void (*draw_horiz_band)(struct AVCodecContext *s,  argument
1396     enum AVPixelFormat (*get_format)(struct AVCodecContext *s, const enum AVPixelFormat * fmt);  argument
1404     int max_b_frames;
1413     float b_quant_factor;
1416     int rc_strategy;
1419     int b_frame_strategy;
1426     float b_quant_offset;
1434     int has_b_frames;
1441     int mpeg_quant;
1450     float i_quant_factor;
1457     float i_quant_offset;
1464     float lumi_masking;
1471     float temporal_cplx_masking;
1478     float spatial_cplx_masking;
1485     float p_masking;
1492     float dark_masking;
1499     int slice_count;
1505      int prediction_method;
1515     int *slice_offset;
1524     AVRational sample_aspect_ratio;
1531     int me_cmp;
1537     int me_sub_cmp;
1543     int mb_cmp;
1549     int ildct_cmp;
1572     int dia_size;
1579     int last_predictor_count;
1586     int pre_me;
1593     int me_pre_cmp;
1600     int pre_dia_size;
1607     int me_subpel_quality;
1617     int dtg_active_format;
1633     int me_range;
1640     int intra_quant_bias;
1648     int inter_quant_bias;
1655     int slice_flags;
1665     int xvmc_acceleration;
1672     int mb_decision;
1682     uint16_t *intra_matrix;
1689     uint16_t *inter_matrix;
1697     int scenechange_threshold;
1704     int noise_reduction;
1713     int me_threshold;
1720     int mb_threshold;
1727     int intra_dc_precision;
1734     int skip_top;
1741     int skip_bottom;
1749     float border_masking;
1756     int mb_lmin;
1763     int mb_lmax;
1770     int me_penalty_compensation;
1777     int bidir_refine;
1784     int brd_scale;
1791     int keyint_min;
1798     int refs;
1805     int chromaoffset;
1812     int scenechange_factor;
1820     int mv0_threshold;
1827     int b_sensitivity;
1834     enum AVColorPrimaries color_primaries;
1841     enum AVColorTransferCharacteristic color_trc;
1848     enum AVColorSpace colorspace;
1855     enum AVColorRange color_range;
1862     enum AVChromaLocation chroma_sample_location;
1871     int slices;
1877     enum AVFieldOrder field_order;
1880     int sample_rate; ///< samples per second
1881     int channels;    ///< number of audio channels
1888     enum AVSampleFormat sample_fmt;  ///< sample format
1900     int frame_size;
1911     int frame_number;
1917     int block_align;
1924     int cutoff;
1933     int request_channels;
1941     uint64_t channel_layout;
1948     uint64_t request_channel_layout;
1955     enum AVAudioServiceType audio_service_type;
1963     enum AVSampleFormat request_sample_fmt;
2029     int (*get_buffer)(struct AVCodecContext *c, AVFrame *pic);  argument
2043     void (*release_buffer)(struct AVCodecContext *c, AVFrame *pic);  argument
2058     int (*reget_buffer)(struct AVCodecContext *c, AVFrame *pic);  argument
2142     int (*get_buffer2)(struct AVCodecContext *s, AVFrame *frame, int flags);  argument
2155     int refcounted_frames;
2158     float qcompress;  ///< amount of qscale change between easy & hard scenes (0.0-1.0)
2159     float qblur;      ///< amount of qscale smoothing over time (0.0-1.0)
2166     int qmin;
2173     int qmax;
2180     int max_qdiff;
2188     float rc_qsquish;
2190     float rc_qmod_amp;
2191     int rc_qmod_freq;
2198     int rc_buffer_size;
2205     int rc_override_count;
2206     RcOverride *rc_override;
2213     const char *rc_eq;
2220     int rc_max_rate;
2227     int rc_min_rate;
2229     float rc_buffer_aggressivity;
2236     float rc_initial_cplx;
2243     float rc_max_available_vbv_use;
2250     float rc_min_vbv_overflow_use;
2257     int rc_initial_buffer_occupancy;
2269     int coder_type;
2276     int context_model;
2283     int lmin;
2290     int lmax;
2297     int frame_skip_threshold;
2304     int frame_skip_factor;
2311     int frame_skip_exp;
2318     int frame_skip_cmp;
2325     int trellis;
2352     void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb);  argument
2354     int rtp_payload_size;   /* The size of the RTP payload: the coder will  */
2362     int mv_bits;
2363     int header_bits;
2364     int i_tex_bits;
2365     int p_tex_bits;
2366     int i_count;
2367     int p_count;
2368     int skip_count;
2369     int misc_bits;
2376     int frame_bits;
2383     char *stats_out;
2391     char *stats_in;
2398     int workaround_bugs;
2428     int strict_std_compliance;
2440     int error_concealment;
2449     int debug;
2473     int debug_mv;
2483     int err_recognition;
2501     int64_t reordered_opaque;
2508     struct AVHWAccel *hwaccel;
2520     void *hwaccel_context;
2527     uint64_t error[AV_NUM_DATA_POINTERS];
2534     int dct_algo;
2547     int idct_algo;
2570      int bits_per_coded_sample;
2577     int bits_per_raw_sample;
2587      int lowres;
2595     AVFrame *coded_frame;
2603     int thread_count;
2613     int thread_type;
2643 …int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void *…  argument
2663 …int (*execute2)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg, int jo…  argument
2671     void *thread_opaque;
2678      int nsse_weight;
2685      int profile;
2763      int level;
2771     enum AVDiscard skip_loop_filter;
2778     enum AVDiscard skip_idct;
2785     enum AVDiscard skip_frame;
2795     uint8_t *subtitle_header;
2796     int subtitle_header_size;
2803     int error_rate;
2812     AVPacket *pkt;
2820     uint64_t vbv_delay;
2829     AVRational pkt_timebase;
2838     const AVCodecDescriptor *codec_descriptor;
2848      int lowres;
2879 } AVCodecContext;  argument