| File: | root/firefox-clang/dom/media/platforms/ffmpeg/ffmpeg57/include/libavcodec/avcodec.h |
| Warning: | line 1531, column 16 Excessive padding in 'struct AVCodecContext' (40 padding bytes, where 0 is optimal). Optimal fields order: av_class, codec, priv_data, internal, opaque, bit_rate, extradata, draw_horiz_band, get_format, slice_offset, intra_matrix, inter_matrix, channel_layout, request_channel_layout, get_buffer2, rc_override, rc_eq, rc_max_rate, rc_min_rate, timecode_frame_start, rtp_callback, stats_out, stats_in, reordered_opaque, hwaccel, hwaccel_context, coded_frame, execute, execute2, subtitle_header, vbv_delay, codec_descriptor, pts_correction_num_faulty_pts, pts_correction_num_faulty_dts, pts_correction_last_pts, pts_correction_last_dts, sub_charenc, chroma_intra_matrix, dump_separator, codec_whitelist, coded_side_data, error, log_level_offset, codec_type, codec_id, codec_tag, stream_codec_tag, bit_rate_tolerance, global_quality, compression_level, flags, flags2, extradata_size, ticks_per_frame, delay, width, height, coded_width, coded_height, gop_size, pix_fmt, me_method, max_b_frames, b_quant_factor, rc_strategy, b_frame_strategy, b_quant_offset, has_b_frames, mpeg_quant, i_quant_factor, i_quant_offset, lumi_masking, temporal_cplx_masking, spatial_cplx_masking, p_masking, dark_masking, slice_count, prediction_method, me_cmp, me_sub_cmp, mb_cmp, ildct_cmp, dia_size, last_predictor_count, pre_me, me_pre_cmp, pre_dia_size, me_subpel_quality, dtg_active_format, me_range, intra_quant_bias, inter_quant_bias, slice_flags, xvmc_acceleration, mb_decision, scenechange_threshold, noise_reduction, me_threshold, mb_threshold, intra_dc_precision, skip_top, skip_bottom, border_masking, mb_lmin, mb_lmax, me_penalty_compensation, bidir_refine, brd_scale, keyint_min, refs, chromaoffset, scenechange_factor, mv0_threshold, b_sensitivity, color_primaries, color_trc, colorspace, color_range, chroma_sample_location, slices, field_order, sample_rate, channels, sample_fmt, frame_size, frame_number, block_align, cutoff, audio_service_type, request_sample_fmt, refcounted_frames, qcompress, qblur, qmin, qmax, max_qdiff, rc_qsquish, rc_qmod_amp, rc_qmod_freq, rc_buffer_size, rc_override_count, rc_buffer_aggressivity, rc_initial_cplx, rc_max_available_vbv_use, rc_min_vbv_overflow_use, rc_initial_buffer_occupancy, coder_type, context_model, lmin, lmax, frame_skip_threshold, frame_skip_factor, frame_skip_exp, frame_skip_cmp, trellis, min_prediction_order, max_prediction_order, rtp_payload_size, mv_bits, header_bits, i_tex_bits, p_tex_bits, i_count, p_count, skip_count, misc_bits, frame_bits, workaround_bugs, strict_std_compliance, error_concealment, debug, debug_mv, err_recognition, dct_algo, idct_algo, bits_per_coded_sample, bits_per_raw_sample, lowres, thread_count, thread_type, active_thread_type, thread_safe_callbacks, nsse_weight, profile, level, skip_loop_filter, skip_idct, skip_frame, subtitle_header_size, error_rate, side_data_only_packets, initial_padding, sw_pix_fmt, sub_charenc_mode, skip_alpha, seek_preroll, properties, nb_coded_side_data, time_base, sample_aspect_ratio, framerate, pkt_timebase, codec_name, consider reordering the fields or adding explicit padding members |
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| 1 | /* |
| 2 | * copyright (c) 2001 Fabrice Bellard |
| 3 | * |
| 4 | * This file is part of FFmpeg. |
| 5 | * |
| 6 | * FFmpeg is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU Lesser General Public |
| 8 | * License as published by the Free Software Foundation; either |
| 9 | * version 2.1 of the License, or (at your option) any later version. |
| 10 | * |
| 11 | * FFmpeg is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * Lesser General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Lesser General Public |
| 17 | * License along with FFmpeg; if not, write to the Free Software |
| 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| 19 | */ |
| 20 | |
| 21 | #ifndef AVCODEC_AVCODEC_H |
| 22 | #define AVCODEC_AVCODEC_H |
| 23 | |
| 24 | /** |
| 25 | * @file |
| 26 | * @ingroup libavc |
| 27 | * Libavcodec external API header |
| 28 | */ |
| 29 | |
| 30 | #include <errno(*__errno_location ()).h> |
| 31 | #include "libavutil/samplefmt.h" |
| 32 | #include "libavutil/attributes.h" |
| 33 | #include "libavutil/avutil.h" |
| 34 | #include "libavutil/buffer.h" |
| 35 | #include "libavutil/cpu.h" |
| 36 | #include "libavutil/channel_layout.h" |
| 37 | #include "libavutil/dict.h" |
| 38 | #include "libavutil/frame.h" |
| 39 | #include "libavutil/log.h" |
| 40 | #include "libavutil/pixfmt.h" |
| 41 | #include "libavutil/rational.h" |
| 42 | |
| 43 | #include "version.h" |
| 44 | |
| 45 | /** |
| 46 | * @defgroup libavc Encoding/Decoding Library |
| 47 | * @{ |
| 48 | * |
| 49 | * @defgroup lavc_decoding Decoding |
| 50 | * @{ |
| 51 | * @} |
| 52 | * |
| 53 | * @defgroup lavc_encoding Encoding |
| 54 | * @{ |
| 55 | * @} |
| 56 | * |
| 57 | * @defgroup lavc_codec Codecs |
| 58 | * @{ |
| 59 | * @defgroup lavc_codec_native Native Codecs |
| 60 | * @{ |
| 61 | * @} |
| 62 | * @defgroup lavc_codec_wrappers External library wrappers |
| 63 | * @{ |
| 64 | * @} |
| 65 | * @defgroup lavc_codec_hwaccel Hardware Accelerators bridge |
| 66 | * @{ |
| 67 | * @} |
| 68 | * @} |
| 69 | * @defgroup lavc_internal Internal |
| 70 | * @{ |
| 71 | * @} |
| 72 | * @} |
| 73 | * |
| 74 | */ |
| 75 | |
| 76 | /** |
| 77 | * @defgroup lavc_core Core functions/structures. |
| 78 | * @ingroup libavc |
| 79 | * |
| 80 | * Basic definitions, functions for querying libavcodec capabilities, |
| 81 | * allocating core structures, etc. |
| 82 | * @{ |
| 83 | */ |
| 84 | |
| 85 | |
| 86 | /** |
| 87 | * Identify the syntax and semantics of the bitstream. |
| 88 | * The principle is roughly: |
| 89 | * Two decoders with the same ID can decode the same streams. |
| 90 | * Two encoders with the same ID can encode compatible streams. |
| 91 | * There may be slight deviations from the principle due to implementation |
| 92 | * details. |
| 93 | * |
| 94 | * If you add a codec ID to this list, add it so that |
| 95 | * 1. no value of a existing codec ID changes (that would break ABI), |
| 96 | * 2. it is as close as possible to similar codecs |
| 97 | * |
| 98 | * After adding new codec IDs, do not forget to add an entry to the codec |
| 99 | * descriptor list and bump libavcodec minor version. |
| 100 | */ |
| 101 | enum AVCodecID { |
| 102 | AV_CODEC_ID_NONE, |
| 103 | |
| 104 | /* video codecs */ |
| 105 | AV_CODEC_ID_MPEG1VIDEO, |
| 106 | AV_CODEC_ID_MPEG2VIDEO, ///< preferred ID for MPEG-1/2 video decoding |
| 107 | #if FF_API_XVMC(55 < 56) |
| 108 | AV_CODEC_ID_MPEG2VIDEO_XVMC, |
| 109 | #endif /* FF_API_XVMC */ |
| 110 | AV_CODEC_ID_H261, |
| 111 | AV_CODEC_ID_H263, |
| 112 | AV_CODEC_ID_RV10, |
| 113 | AV_CODEC_ID_RV20, |
| 114 | AV_CODEC_ID_MJPEG, |
| 115 | AV_CODEC_ID_MJPEGB, |
| 116 | AV_CODEC_ID_LJPEG, |
| 117 | AV_CODEC_ID_SP5X, |
| 118 | AV_CODEC_ID_JPEGLS, |
| 119 | AV_CODEC_ID_MPEG4, |
| 120 | AV_CODEC_ID_RAWVIDEO, |
| 121 | AV_CODEC_ID_MSMPEG4V1, |
| 122 | AV_CODEC_ID_MSMPEG4V2, |
| 123 | AV_CODEC_ID_MSMPEG4V3, |
| 124 | AV_CODEC_ID_WMV1, |
| 125 | AV_CODEC_ID_WMV2, |
| 126 | AV_CODEC_ID_H263P, |
| 127 | AV_CODEC_ID_H263I, |
| 128 | AV_CODEC_ID_FLV1, |
| 129 | AV_CODEC_ID_SVQ1, |
| 130 | AV_CODEC_ID_SVQ3, |
| 131 | AV_CODEC_ID_DVVIDEO, |
| 132 | AV_CODEC_ID_HUFFYUV, |
| 133 | AV_CODEC_ID_CYUV, |
| 134 | AV_CODEC_ID_H264, |
| 135 | AV_CODEC_ID_INDEO3, |
| 136 | AV_CODEC_ID_VP3, |
| 137 | AV_CODEC_ID_THEORA, |
| 138 | AV_CODEC_ID_ASV1, |
| 139 | AV_CODEC_ID_ASV2, |
| 140 | AV_CODEC_ID_FFV1, |
| 141 | AV_CODEC_ID_4XM, |
| 142 | AV_CODEC_ID_VCR1, |
| 143 | AV_CODEC_ID_CLJR, |
| 144 | AV_CODEC_ID_MDEC, |
| 145 | AV_CODEC_ID_ROQ, |
| 146 | AV_CODEC_ID_INTERPLAY_VIDEO, |
| 147 | AV_CODEC_ID_XAN_WC3, |
| 148 | AV_CODEC_ID_XAN_WC4, |
| 149 | AV_CODEC_ID_RPZA, |
| 150 | AV_CODEC_ID_CINEPAK, |
| 151 | AV_CODEC_ID_WS_VQA, |
| 152 | AV_CODEC_ID_MSRLE, |
| 153 | AV_CODEC_ID_MSVIDEO1, |
| 154 | AV_CODEC_ID_IDCIN, |
| 155 | AV_CODEC_ID_8BPS, |
| 156 | AV_CODEC_ID_SMC, |
| 157 | AV_CODEC_ID_FLIC, |
| 158 | AV_CODEC_ID_TRUEMOTION1, |
| 159 | AV_CODEC_ID_VMDVIDEO, |
| 160 | AV_CODEC_ID_MSZH, |
| 161 | AV_CODEC_ID_ZLIB, |
| 162 | AV_CODEC_ID_QTRLE, |
| 163 | AV_CODEC_ID_TSCC, |
| 164 | AV_CODEC_ID_ULTI, |
| 165 | AV_CODEC_ID_QDRAW, |
| 166 | AV_CODEC_ID_VIXL, |
| 167 | AV_CODEC_ID_QPEG, |
| 168 | AV_CODEC_ID_PNG, |
| 169 | AV_CODEC_ID_PPM, |
| 170 | AV_CODEC_ID_PBM, |
| 171 | AV_CODEC_ID_PGM, |
| 172 | AV_CODEC_ID_PGMYUV, |
| 173 | AV_CODEC_ID_PAM, |
| 174 | AV_CODEC_ID_FFVHUFF, |
| 175 | AV_CODEC_ID_RV30, |
| 176 | AV_CODEC_ID_RV40, |
| 177 | AV_CODEC_ID_VC1, |
| 178 | AV_CODEC_ID_WMV3, |
| 179 | AV_CODEC_ID_LOCO, |
| 180 | AV_CODEC_ID_WNV1, |
| 181 | AV_CODEC_ID_AASC, |
| 182 | AV_CODEC_ID_INDEO2, |
| 183 | AV_CODEC_ID_FRAPS, |
| 184 | AV_CODEC_ID_TRUEMOTION2, |
| 185 | AV_CODEC_ID_BMP, |
| 186 | AV_CODEC_ID_CSCD, |
| 187 | AV_CODEC_ID_MMVIDEO, |
| 188 | AV_CODEC_ID_ZMBV, |
| 189 | AV_CODEC_ID_AVS, |
| 190 | AV_CODEC_ID_SMACKVIDEO, |
| 191 | AV_CODEC_ID_NUV, |
| 192 | AV_CODEC_ID_KMVC, |
| 193 | AV_CODEC_ID_FLASHSV, |
| 194 | AV_CODEC_ID_CAVS, |
| 195 | AV_CODEC_ID_JPEG2000, |
| 196 | AV_CODEC_ID_VMNC, |
| 197 | AV_CODEC_ID_VP5, |
| 198 | AV_CODEC_ID_VP6, |
| 199 | AV_CODEC_ID_VP6F, |
| 200 | AV_CODEC_ID_TARGA, |
| 201 | AV_CODEC_ID_DSICINVIDEO, |
| 202 | AV_CODEC_ID_TIERTEXSEQVIDEO, |
| 203 | AV_CODEC_ID_TIFF, |
| 204 | AV_CODEC_ID_GIF, |
| 205 | AV_CODEC_ID_DXA, |
| 206 | AV_CODEC_ID_DNXHD, |
| 207 | AV_CODEC_ID_THP, |
| 208 | AV_CODEC_ID_SGI, |
| 209 | AV_CODEC_ID_C93, |
| 210 | AV_CODEC_ID_BETHSOFTVID, |
| 211 | AV_CODEC_ID_PTX, |
| 212 | AV_CODEC_ID_TXD, |
| 213 | AV_CODEC_ID_VP6A, |
| 214 | AV_CODEC_ID_AMV, |
| 215 | AV_CODEC_ID_VB, |
| 216 | AV_CODEC_ID_PCX, |
| 217 | AV_CODEC_ID_SUNRAST, |
| 218 | AV_CODEC_ID_INDEO4, |
| 219 | AV_CODEC_ID_INDEO5, |
| 220 | AV_CODEC_ID_MIMIC, |
| 221 | AV_CODEC_ID_RL2, |
| 222 | AV_CODEC_ID_ESCAPE124, |
| 223 | AV_CODEC_ID_DIRAC, |
| 224 | AV_CODEC_ID_BFI, |
| 225 | AV_CODEC_ID_CMV, |
| 226 | AV_CODEC_ID_MOTIONPIXELS, |
| 227 | AV_CODEC_ID_TGV, |
| 228 | AV_CODEC_ID_TGQ, |
| 229 | AV_CODEC_ID_TQI, |
| 230 | AV_CODEC_ID_AURA, |
| 231 | AV_CODEC_ID_AURA2, |
| 232 | AV_CODEC_ID_V210X, |
| 233 | AV_CODEC_ID_TMV, |
| 234 | AV_CODEC_ID_V210, |
| 235 | AV_CODEC_ID_DPX, |
| 236 | AV_CODEC_ID_MAD, |
| 237 | AV_CODEC_ID_FRWU, |
| 238 | AV_CODEC_ID_FLASHSV2, |
| 239 | AV_CODEC_ID_CDGRAPHICS, |
| 240 | AV_CODEC_ID_R210, |
| 241 | AV_CODEC_ID_ANM, |
| 242 | AV_CODEC_ID_BINKVIDEO, |
| 243 | AV_CODEC_ID_IFF_ILBM, |
| 244 | #define AV_CODEC_ID_IFF_BYTERUN1AV_CODEC_ID_IFF_ILBM AV_CODEC_ID_IFF_ILBM |
| 245 | AV_CODEC_ID_KGV1, |
| 246 | AV_CODEC_ID_YOP, |
| 247 | AV_CODEC_ID_VP8, |
| 248 | AV_CODEC_ID_PICTOR, |
| 249 | AV_CODEC_ID_ANSI, |
| 250 | AV_CODEC_ID_A64_MULTI, |
| 251 | AV_CODEC_ID_A64_MULTI5, |
| 252 | AV_CODEC_ID_R10K, |
| 253 | AV_CODEC_ID_MXPEG, |
| 254 | AV_CODEC_ID_LAGARITH, |
| 255 | AV_CODEC_ID_PRORES, |
| 256 | AV_CODEC_ID_JV, |
| 257 | AV_CODEC_ID_DFA, |
| 258 | AV_CODEC_ID_WMV3IMAGE, |
| 259 | AV_CODEC_ID_VC1IMAGE, |
| 260 | AV_CODEC_ID_UTVIDEO, |
| 261 | AV_CODEC_ID_BMV_VIDEO, |
| 262 | AV_CODEC_ID_VBLE, |
| 263 | AV_CODEC_ID_DXTORY, |
| 264 | AV_CODEC_ID_V410, |
| 265 | AV_CODEC_ID_XWD, |
| 266 | AV_CODEC_ID_CDXL, |
| 267 | AV_CODEC_ID_XBM, |
| 268 | AV_CODEC_ID_ZEROCODEC, |
| 269 | AV_CODEC_ID_MSS1, |
| 270 | AV_CODEC_ID_MSA1, |
| 271 | AV_CODEC_ID_TSCC2, |
| 272 | AV_CODEC_ID_MTS2, |
| 273 | AV_CODEC_ID_CLLC, |
| 274 | AV_CODEC_ID_MSS2, |
| 275 | AV_CODEC_ID_VP9, |
| 276 | AV_CODEC_ID_AIC, |
| 277 | AV_CODEC_ID_ESCAPE130, |
| 278 | AV_CODEC_ID_G2M, |
| 279 | AV_CODEC_ID_WEBP, |
| 280 | AV_CODEC_ID_HNM4_VIDEO, |
| 281 | AV_CODEC_ID_HEVC, |
| 282 | #define AV_CODEC_ID_H265AV_CODEC_ID_HEVC AV_CODEC_ID_HEVC |
| 283 | AV_CODEC_ID_FIC, |
| 284 | AV_CODEC_ID_ALIAS_PIX, |
| 285 | AV_CODEC_ID_BRENDER_PIX, |
| 286 | AV_CODEC_ID_PAF_VIDEO, |
| 287 | AV_CODEC_ID_EXR, |
| 288 | AV_CODEC_ID_VP7, |
| 289 | AV_CODEC_ID_SANM, |
| 290 | AV_CODEC_ID_SGIRLE, |
| 291 | AV_CODEC_ID_MVC1, |
| 292 | AV_CODEC_ID_MVC2, |
| 293 | AV_CODEC_ID_HQX, |
| 294 | AV_CODEC_ID_TDSC, |
| 295 | AV_CODEC_ID_HQ_HQA, |
| 296 | AV_CODEC_ID_HAP, |
| 297 | AV_CODEC_ID_DDS, |
| 298 | AV_CODEC_ID_DXV, |
| 299 | AV_CODEC_ID_SCREENPRESSO, |
| 300 | AV_CODEC_ID_RSCC, |
| 301 | |
| 302 | AV_CODEC_ID_Y41P = 0x8000, |
| 303 | AV_CODEC_ID_AVRP, |
| 304 | AV_CODEC_ID_012V, |
| 305 | AV_CODEC_ID_AVUI, |
| 306 | AV_CODEC_ID_AYUV, |
| 307 | AV_CODEC_ID_TARGA_Y216, |
| 308 | AV_CODEC_ID_V308, |
| 309 | AV_CODEC_ID_V408, |
| 310 | AV_CODEC_ID_YUV4, |
| 311 | AV_CODEC_ID_AVRN, |
| 312 | AV_CODEC_ID_CPIA, |
| 313 | AV_CODEC_ID_XFACE, |
| 314 | AV_CODEC_ID_SNOW, |
| 315 | AV_CODEC_ID_SMVJPEG, |
| 316 | AV_CODEC_ID_APNG, |
| 317 | AV_CODEC_ID_DAALA, |
| 318 | |
| 319 | /* various PCM "codecs" */ |
| 320 | AV_CODEC_ID_FIRST_AUDIO = 0x10000, ///< A dummy id pointing at the start of audio codecs |
| 321 | AV_CODEC_ID_PCM_S16LE = 0x10000, |
| 322 | AV_CODEC_ID_PCM_S16BE, |
| 323 | AV_CODEC_ID_PCM_U16LE, |
| 324 | AV_CODEC_ID_PCM_U16BE, |
| 325 | AV_CODEC_ID_PCM_S8, |
| 326 | AV_CODEC_ID_PCM_U8, |
| 327 | AV_CODEC_ID_PCM_MULAW, |
| 328 | AV_CODEC_ID_PCM_ALAW, |
| 329 | AV_CODEC_ID_PCM_S32LE, |
| 330 | AV_CODEC_ID_PCM_S32BE, |
| 331 | AV_CODEC_ID_PCM_U32LE, |
| 332 | AV_CODEC_ID_PCM_U32BE, |
| 333 | AV_CODEC_ID_PCM_S24LE, |
| 334 | AV_CODEC_ID_PCM_S24BE, |
| 335 | AV_CODEC_ID_PCM_U24LE, |
| 336 | AV_CODEC_ID_PCM_U24BE, |
| 337 | AV_CODEC_ID_PCM_S24DAUD, |
| 338 | AV_CODEC_ID_PCM_ZORK, |
| 339 | AV_CODEC_ID_PCM_S16LE_PLANAR, |
| 340 | AV_CODEC_ID_PCM_DVD, |
| 341 | AV_CODEC_ID_PCM_F32BE, |
| 342 | AV_CODEC_ID_PCM_F32LE, |
| 343 | AV_CODEC_ID_PCM_F64BE, |
| 344 | AV_CODEC_ID_PCM_F64LE, |
| 345 | AV_CODEC_ID_PCM_BLURAY, |
| 346 | AV_CODEC_ID_PCM_LXF, |
| 347 | AV_CODEC_ID_S302M, |
| 348 | AV_CODEC_ID_PCM_S8_PLANAR, |
| 349 | AV_CODEC_ID_PCM_S24LE_PLANAR, |
| 350 | AV_CODEC_ID_PCM_S32LE_PLANAR, |
| 351 | AV_CODEC_ID_PCM_S16BE_PLANAR, |
| 352 | /* new PCM "codecs" should be added right below this line starting with |
| 353 | * an explicit value of for example 0x10800 |
| 354 | */ |
| 355 | |
| 356 | /* various ADPCM codecs */ |
| 357 | AV_CODEC_ID_ADPCM_IMA_QT = 0x11000, |
| 358 | AV_CODEC_ID_ADPCM_IMA_WAV, |
| 359 | AV_CODEC_ID_ADPCM_IMA_DK3, |
| 360 | AV_CODEC_ID_ADPCM_IMA_DK4, |
| 361 | AV_CODEC_ID_ADPCM_IMA_WS, |
| 362 | AV_CODEC_ID_ADPCM_IMA_SMJPEG, |
| 363 | AV_CODEC_ID_ADPCM_MS, |
| 364 | AV_CODEC_ID_ADPCM_4XM, |
| 365 | AV_CODEC_ID_ADPCM_XA, |
| 366 | AV_CODEC_ID_ADPCM_ADX, |
| 367 | AV_CODEC_ID_ADPCM_EA, |
| 368 | AV_CODEC_ID_ADPCM_G726, |
| 369 | AV_CODEC_ID_ADPCM_CT, |
| 370 | AV_CODEC_ID_ADPCM_SWF, |
| 371 | AV_CODEC_ID_ADPCM_YAMAHA, |
| 372 | AV_CODEC_ID_ADPCM_SBPRO_4, |
| 373 | AV_CODEC_ID_ADPCM_SBPRO_3, |
| 374 | AV_CODEC_ID_ADPCM_SBPRO_2, |
| 375 | AV_CODEC_ID_ADPCM_THP, |
| 376 | AV_CODEC_ID_ADPCM_IMA_AMV, |
| 377 | AV_CODEC_ID_ADPCM_EA_R1, |
| 378 | AV_CODEC_ID_ADPCM_EA_R3, |
| 379 | AV_CODEC_ID_ADPCM_EA_R2, |
| 380 | AV_CODEC_ID_ADPCM_IMA_EA_SEAD, |
| 381 | AV_CODEC_ID_ADPCM_IMA_EA_EACS, |
| 382 | AV_CODEC_ID_ADPCM_EA_XAS, |
| 383 | AV_CODEC_ID_ADPCM_EA_MAXIS_XA, |
| 384 | AV_CODEC_ID_ADPCM_IMA_ISS, |
| 385 | AV_CODEC_ID_ADPCM_G722, |
| 386 | AV_CODEC_ID_ADPCM_IMA_APC, |
| 387 | AV_CODEC_ID_ADPCM_VIMA, |
| 388 | #if FF_API_VIMA_DECODER(57 < 58) |
| 389 | AV_CODEC_ID_VIMA = AV_CODEC_ID_ADPCM_VIMA, |
| 390 | #endif |
| 391 | |
| 392 | AV_CODEC_ID_ADPCM_AFC = 0x11800, |
| 393 | AV_CODEC_ID_ADPCM_IMA_OKI, |
| 394 | AV_CODEC_ID_ADPCM_DTK, |
| 395 | AV_CODEC_ID_ADPCM_IMA_RAD, |
| 396 | AV_CODEC_ID_ADPCM_G726LE, |
| 397 | AV_CODEC_ID_ADPCM_THP_LE, |
| 398 | AV_CODEC_ID_ADPCM_PSX, |
| 399 | AV_CODEC_ID_ADPCM_AICA, |
| 400 | |
| 401 | /* AMR */ |
| 402 | AV_CODEC_ID_AMR_NB = 0x12000, |
| 403 | AV_CODEC_ID_AMR_WB, |
| 404 | |
| 405 | /* RealAudio codecs*/ |
| 406 | AV_CODEC_ID_RA_144 = 0x13000, |
| 407 | AV_CODEC_ID_RA_288, |
| 408 | |
| 409 | /* various DPCM codecs */ |
| 410 | AV_CODEC_ID_ROQ_DPCM = 0x14000, |
| 411 | AV_CODEC_ID_INTERPLAY_DPCM, |
| 412 | AV_CODEC_ID_XAN_DPCM, |
| 413 | AV_CODEC_ID_SOL_DPCM, |
| 414 | |
| 415 | AV_CODEC_ID_SDX2_DPCM = 0x14800, |
| 416 | |
| 417 | /* audio codecs */ |
| 418 | AV_CODEC_ID_MP2 = 0x15000, |
| 419 | AV_CODEC_ID_MP3, ///< preferred ID for decoding MPEG audio layer 1, 2 or 3 |
| 420 | AV_CODEC_ID_AAC, |
| 421 | AV_CODEC_ID_AC3, |
| 422 | AV_CODEC_ID_DTS, |
| 423 | AV_CODEC_ID_VORBIS, |
| 424 | AV_CODEC_ID_DVAUDIO, |
| 425 | AV_CODEC_ID_WMAV1, |
| 426 | AV_CODEC_ID_WMAV2, |
| 427 | AV_CODEC_ID_MACE3, |
| 428 | AV_CODEC_ID_MACE6, |
| 429 | AV_CODEC_ID_VMDAUDIO, |
| 430 | AV_CODEC_ID_FLAC, |
| 431 | AV_CODEC_ID_MP3ADU, |
| 432 | AV_CODEC_ID_MP3ON4, |
| 433 | AV_CODEC_ID_SHORTEN, |
| 434 | AV_CODEC_ID_ALAC, |
| 435 | AV_CODEC_ID_WESTWOOD_SND1, |
| 436 | AV_CODEC_ID_GSM, ///< as in Berlin toast format |
| 437 | AV_CODEC_ID_QDM2, |
| 438 | AV_CODEC_ID_COOK, |
| 439 | AV_CODEC_ID_TRUESPEECH, |
| 440 | AV_CODEC_ID_TTA, |
| 441 | AV_CODEC_ID_SMACKAUDIO, |
| 442 | AV_CODEC_ID_QCELP, |
| 443 | AV_CODEC_ID_WAVPACK, |
| 444 | AV_CODEC_ID_DSICINAUDIO, |
| 445 | AV_CODEC_ID_IMC, |
| 446 | AV_CODEC_ID_MUSEPACK7, |
| 447 | AV_CODEC_ID_MLP, |
| 448 | AV_CODEC_ID_GSM_MS, /* as found in WAV */ |
| 449 | AV_CODEC_ID_ATRAC3, |
| 450 | #if FF_API_VOXWARE(57 < 58) |
| 451 | AV_CODEC_ID_VOXWARE, |
| 452 | #endif |
| 453 | AV_CODEC_ID_APE, |
| 454 | AV_CODEC_ID_NELLYMOSER, |
| 455 | AV_CODEC_ID_MUSEPACK8, |
| 456 | AV_CODEC_ID_SPEEX, |
| 457 | AV_CODEC_ID_WMAVOICE, |
| 458 | AV_CODEC_ID_WMAPRO, |
| 459 | AV_CODEC_ID_WMALOSSLESS, |
| 460 | AV_CODEC_ID_ATRAC3P, |
| 461 | AV_CODEC_ID_EAC3, |
| 462 | AV_CODEC_ID_SIPR, |
| 463 | AV_CODEC_ID_MP1, |
| 464 | AV_CODEC_ID_TWINVQ, |
| 465 | AV_CODEC_ID_TRUEHD, |
| 466 | AV_CODEC_ID_MP4ALS, |
| 467 | AV_CODEC_ID_ATRAC1, |
| 468 | AV_CODEC_ID_BINKAUDIO_RDFT, |
| 469 | AV_CODEC_ID_BINKAUDIO_DCT, |
| 470 | AV_CODEC_ID_AAC_LATM, |
| 471 | AV_CODEC_ID_QDMC, |
| 472 | AV_CODEC_ID_CELT, |
| 473 | AV_CODEC_ID_G723_1, |
| 474 | AV_CODEC_ID_G729, |
| 475 | AV_CODEC_ID_8SVX_EXP, |
| 476 | AV_CODEC_ID_8SVX_FIB, |
| 477 | AV_CODEC_ID_BMV_AUDIO, |
| 478 | AV_CODEC_ID_RALF, |
| 479 | AV_CODEC_ID_IAC, |
| 480 | AV_CODEC_ID_ILBC, |
| 481 | AV_CODEC_ID_OPUS, |
| 482 | AV_CODEC_ID_COMFORT_NOISE, |
| 483 | AV_CODEC_ID_TAK, |
| 484 | AV_CODEC_ID_METASOUND, |
| 485 | AV_CODEC_ID_PAF_AUDIO, |
| 486 | AV_CODEC_ID_ON2AVC, |
| 487 | AV_CODEC_ID_DSS_SP, |
| 488 | |
| 489 | AV_CODEC_ID_FFWAVESYNTH = 0x15800, |
| 490 | AV_CODEC_ID_SONIC, |
| 491 | AV_CODEC_ID_SONIC_LS, |
| 492 | AV_CODEC_ID_EVRC, |
| 493 | AV_CODEC_ID_SMV, |
| 494 | AV_CODEC_ID_DSD_LSBF, |
| 495 | AV_CODEC_ID_DSD_MSBF, |
| 496 | AV_CODEC_ID_DSD_LSBF_PLANAR, |
| 497 | AV_CODEC_ID_DSD_MSBF_PLANAR, |
| 498 | AV_CODEC_ID_4GV, |
| 499 | AV_CODEC_ID_INTERPLAY_ACM, |
| 500 | AV_CODEC_ID_XMA1, |
| 501 | AV_CODEC_ID_XMA2, |
| 502 | |
| 503 | /* subtitle codecs */ |
| 504 | AV_CODEC_ID_FIRST_SUBTITLE = 0x17000, ///< A dummy ID pointing at the start of subtitle codecs. |
| 505 | AV_CODEC_ID_DVD_SUBTITLE = 0x17000, |
| 506 | AV_CODEC_ID_DVB_SUBTITLE, |
| 507 | AV_CODEC_ID_TEXT, ///< raw UTF-8 text |
| 508 | AV_CODEC_ID_XSUB, |
| 509 | AV_CODEC_ID_SSA, |
| 510 | AV_CODEC_ID_MOV_TEXT, |
| 511 | AV_CODEC_ID_HDMV_PGS_SUBTITLE, |
| 512 | AV_CODEC_ID_DVB_TELETEXT, |
| 513 | AV_CODEC_ID_SRT, |
| 514 | |
| 515 | AV_CODEC_ID_MICRODVD = 0x17800, |
| 516 | AV_CODEC_ID_EIA_608, |
| 517 | AV_CODEC_ID_JACOSUB, |
| 518 | AV_CODEC_ID_SAMI, |
| 519 | AV_CODEC_ID_REALTEXT, |
| 520 | AV_CODEC_ID_STL, |
| 521 | AV_CODEC_ID_SUBVIEWER1, |
| 522 | AV_CODEC_ID_SUBVIEWER, |
| 523 | AV_CODEC_ID_SUBRIP, |
| 524 | AV_CODEC_ID_WEBVTT, |
| 525 | AV_CODEC_ID_MPL2, |
| 526 | AV_CODEC_ID_VPLAYER, |
| 527 | AV_CODEC_ID_PJS, |
| 528 | AV_CODEC_ID_ASS, |
| 529 | AV_CODEC_ID_HDMV_TEXT_SUBTITLE, |
| 530 | |
| 531 | /* other specific kind of codecs (generally used for attachments) */ |
| 532 | AV_CODEC_ID_FIRST_UNKNOWN = 0x18000, ///< A dummy ID pointing at the start of various fake codecs. |
| 533 | AV_CODEC_ID_TTF = 0x18000, |
| 534 | |
| 535 | AV_CODEC_ID_BINTEXT = 0x18800, |
| 536 | AV_CODEC_ID_XBIN, |
| 537 | AV_CODEC_ID_IDF, |
| 538 | AV_CODEC_ID_OTF, |
| 539 | AV_CODEC_ID_SMPTE_KLV, |
| 540 | AV_CODEC_ID_DVD_NAV, |
| 541 | AV_CODEC_ID_TIMED_ID3, |
| 542 | AV_CODEC_ID_BIN_DATA, |
| 543 | |
| 544 | |
| 545 | AV_CODEC_ID_PROBE = 0x19000, ///< codec_id is not known (like AV_CODEC_ID_NONE) but lavf should attempt to identify it |
| 546 | |
| 547 | AV_CODEC_ID_MPEG2TS = 0x20000, /**< _FAKE_ codec to indicate a raw MPEG-2 TS |
| 548 | * stream (only used by libavformat) */ |
| 549 | AV_CODEC_ID_MPEG4SYSTEMS = 0x20001, /**< _FAKE_ codec to indicate a MPEG-4 Systems |
| 550 | * stream (only used by libavformat) */ |
| 551 | AV_CODEC_ID_FFMETADATA = 0x21000, ///< Dummy codec for streams containing only metadata information. |
| 552 | AV_CODEC_ID_WRAPPED_AVFRAME = 0x21001, ///< Passthrough codec, AVFrames wrapped in AVPacket |
| 553 | }; |
| 554 | |
| 555 | /** |
| 556 | * This struct describes the properties of a single codec described by an |
| 557 | * AVCodecID. |
| 558 | * @see avcodec_descriptor_get() |
| 559 | */ |
| 560 | typedef struct AVCodecDescriptor { |
| 561 | enum AVCodecID id; |
| 562 | enum AVMediaType type; |
| 563 | /** |
| 564 | * Name of the codec described by this descriptor. It is non-empty and |
| 565 | * unique for each codec descriptor. It should contain alphanumeric |
| 566 | * characters and '_' only. |
| 567 | */ |
| 568 | const char *name; |
| 569 | /** |
| 570 | * A more descriptive name for this codec. May be NULL. |
| 571 | */ |
| 572 | const char *long_name; |
| 573 | /** |
| 574 | * Codec properties, a combination of AV_CODEC_PROP_* flags. |
| 575 | */ |
| 576 | int props; |
| 577 | /** |
| 578 | * MIME type(s) associated with the codec. |
| 579 | * May be NULL; if not, a NULL-terminated array of MIME types. |
| 580 | * The first item is always non-NULL and is the preferred MIME type. |
| 581 | */ |
| 582 | const char *const *mime_types; |
| 583 | /** |
| 584 | * If non-NULL, an array of profiles recognized for this codec. |
| 585 | * Terminated with FF_PROFILE_UNKNOWN. |
| 586 | */ |
| 587 | const struct AVProfile *profiles; |
| 588 | } AVCodecDescriptor; |
| 589 | |
| 590 | /** |
| 591 | * Codec uses only intra compression. |
| 592 | * Video codecs only. |
| 593 | */ |
| 594 | #define AV_CODEC_PROP_INTRA_ONLY(1 << 0) (1 << 0) |
| 595 | /** |
| 596 | * Codec supports lossy compression. Audio and video codecs only. |
| 597 | * @note a codec may support both lossy and lossless |
| 598 | * compression modes |
| 599 | */ |
| 600 | #define AV_CODEC_PROP_LOSSY(1 << 1) (1 << 1) |
| 601 | /** |
| 602 | * Codec supports lossless compression. Audio and video codecs only. |
| 603 | */ |
| 604 | #define AV_CODEC_PROP_LOSSLESS(1 << 2) (1 << 2) |
| 605 | /** |
| 606 | * Codec supports frame reordering. That is, the coded order (the order in which |
| 607 | * the encoded packets are output by the encoders / stored / input to the |
| 608 | * decoders) may be different from the presentation order of the corresponding |
| 609 | * frames. |
| 610 | * |
| 611 | * For codecs that do not have this property set, PTS and DTS should always be |
| 612 | * equal. |
| 613 | */ |
| 614 | #define AV_CODEC_PROP_REORDER(1 << 3) (1 << 3) |
| 615 | /** |
| 616 | * Subtitle codec is bitmap based |
| 617 | * Decoded AVSubtitle data can be read from the AVSubtitleRect->pict field. |
| 618 | */ |
| 619 | #define AV_CODEC_PROP_BITMAP_SUB(1 << 16) (1 << 16) |
| 620 | /** |
| 621 | * Subtitle codec is text based. |
| 622 | * Decoded AVSubtitle data can be read from the AVSubtitleRect->ass field. |
| 623 | */ |
| 624 | #define AV_CODEC_PROP_TEXT_SUB(1 << 17) (1 << 17) |
| 625 | |
| 626 | /** |
| 627 | * @ingroup lavc_decoding |
| 628 | * Required number of additionally allocated bytes at the end of the input bitstream for decoding. |
| 629 | * This is mainly needed because some optimized bitstream readers read |
| 630 | * 32 or 64 bit at once and could read over the end.<br> |
| 631 | * Note: If the first 23 bits of the additional bytes are not 0, then damaged |
| 632 | * MPEG bitstreams could cause overread and segfault. |
| 633 | */ |
| 634 | #define AV_INPUT_BUFFER_PADDING_SIZE32 32 |
| 635 | |
| 636 | /** |
| 637 | * @ingroup lavc_encoding |
| 638 | * minimum encoding buffer size |
| 639 | * Used to avoid some checks during header writing. |
| 640 | */ |
| 641 | #define AV_INPUT_BUFFER_MIN_SIZE16384 16384 |
| 642 | |
| 643 | #if FF_API_WITHOUT_PREFIX(57 < 59) |
| 644 | /** |
| 645 | * @deprecated use AV_INPUT_BUFFER_PADDING_SIZE instead |
| 646 | */ |
| 647 | #define FF_INPUT_BUFFER_PADDING_SIZE32 32 |
| 648 | |
| 649 | /** |
| 650 | * @deprecated use AV_INPUT_BUFFER_MIN_SIZE instead |
| 651 | */ |
| 652 | #define FF_MIN_BUFFER_SIZE16384 16384 |
| 653 | #endif /* FF_API_WITHOUT_PREFIX */ |
| 654 | |
| 655 | /** |
| 656 | * @ingroup lavc_encoding |
| 657 | * motion estimation type. |
| 658 | * @deprecated use codec private option instead |
| 659 | */ |
| 660 | #if FF_API_MOTION_EST(57 < 59) |
| 661 | enum Motion_Est_ID { |
| 662 | ME_ZERO = 1, ///< no search, that is use 0,0 vector whenever one is needed |
| 663 | ME_FULL, |
| 664 | ME_LOG, |
| 665 | ME_PHODS, |
| 666 | ME_EPZS, ///< enhanced predictive zonal search |
| 667 | ME_X1, ///< reserved for experiments |
| 668 | ME_HEX, ///< hexagon based search |
| 669 | ME_UMH, ///< uneven multi-hexagon search |
| 670 | ME_TESA, ///< transformed exhaustive search algorithm |
| 671 | ME_ITER=50, ///< iterative search |
| 672 | }; |
| 673 | #endif |
| 674 | |
| 675 | /** |
| 676 | * @ingroup lavc_decoding |
| 677 | */ |
| 678 | enum AVDiscard{ |
| 679 | /* We leave some space between them for extensions (drop some |
| 680 | * keyframes for intra-only or drop just some bidir frames). */ |
| 681 | AVDISCARD_NONE =-16, ///< discard nothing |
| 682 | AVDISCARD_DEFAULT = 0, ///< discard useless packets like 0 size packets in avi |
| 683 | AVDISCARD_NONREF = 8, ///< discard all non reference |
| 684 | AVDISCARD_BIDIR = 16, ///< discard all bidirectional frames |
| 685 | AVDISCARD_NONINTRA= 24, ///< discard all non intra frames |
| 686 | AVDISCARD_NONKEY = 32, ///< discard all frames except keyframes |
| 687 | AVDISCARD_ALL = 48, ///< discard all |
| 688 | }; |
| 689 | |
| 690 | enum AVAudioServiceType { |
| 691 | AV_AUDIO_SERVICE_TYPE_MAIN = 0, |
| 692 | AV_AUDIO_SERVICE_TYPE_EFFECTS = 1, |
| 693 | AV_AUDIO_SERVICE_TYPE_VISUALLY_IMPAIRED = 2, |
| 694 | AV_AUDIO_SERVICE_TYPE_HEARING_IMPAIRED = 3, |
| 695 | AV_AUDIO_SERVICE_TYPE_DIALOGUE = 4, |
| 696 | AV_AUDIO_SERVICE_TYPE_COMMENTARY = 5, |
| 697 | AV_AUDIO_SERVICE_TYPE_EMERGENCY = 6, |
| 698 | AV_AUDIO_SERVICE_TYPE_VOICE_OVER = 7, |
| 699 | AV_AUDIO_SERVICE_TYPE_KARAOKE = 8, |
| 700 | AV_AUDIO_SERVICE_TYPE_NB , ///< Not part of ABI |
| 701 | }; |
| 702 | |
| 703 | /** |
| 704 | * @ingroup lavc_encoding |
| 705 | */ |
| 706 | typedef struct RcOverride{ |
| 707 | int start_frame; |
| 708 | int end_frame; |
| 709 | int qscale; // If this is 0 then quality_factor will be used instead. |
| 710 | float quality_factor; |
| 711 | } RcOverride; |
| 712 | |
| 713 | #if FF_API_MAX_BFRAMES(57 < 58) |
| 714 | /** |
| 715 | * @deprecated there is no libavcodec-wide limit on the number of B-frames |
| 716 | */ |
| 717 | #define FF_MAX_B_FRAMES16 16 |
| 718 | #endif |
| 719 | |
| 720 | /* encoding support |
| 721 | These flags can be passed in AVCodecContext.flags before initialization. |
| 722 | Note: Not everything is supported yet. |
| 723 | */ |
| 724 | |
| 725 | /** |
| 726 | * Allow decoders to produce frames with data planes that are not aligned |
| 727 | * to CPU requirements (e.g. due to cropping). |
| 728 | */ |
| 729 | #define AV_CODEC_FLAG_UNALIGNED(1 << 0) (1 << 0) |
| 730 | /** |
| 731 | * Use fixed qscale. |
| 732 | */ |
| 733 | #define AV_CODEC_FLAG_QSCALE(1 << 1) (1 << 1) |
| 734 | /** |
| 735 | * 4 MV per MB allowed / advanced prediction for H.263. |
| 736 | */ |
| 737 | #define AV_CODEC_FLAG_4MV(1 << 2) (1 << 2) |
| 738 | /** |
| 739 | * Output even those frames that might be corrupted. |
| 740 | */ |
| 741 | #define AV_CODEC_FLAG_OUTPUT_CORRUPT(1 << 3) (1 << 3) |
| 742 | /** |
| 743 | * Use qpel MC. |
| 744 | */ |
| 745 | #define AV_CODEC_FLAG_QPEL(1 << 4) (1 << 4) |
| 746 | /** |
| 747 | * Use internal 2pass ratecontrol in first pass mode. |
| 748 | */ |
| 749 | #define AV_CODEC_FLAG_PASS1(1 << 9) (1 << 9) |
| 750 | /** |
| 751 | * Use internal 2pass ratecontrol in second pass mode. |
| 752 | */ |
| 753 | #define AV_CODEC_FLAG_PASS2(1 << 10) (1 << 10) |
| 754 | /** |
| 755 | * loop filter. |
| 756 | */ |
| 757 | #define AV_CODEC_FLAG_LOOP_FILTER(1 << 11) (1 << 11) |
| 758 | /** |
| 759 | * Only decode/encode grayscale. |
| 760 | */ |
| 761 | #define AV_CODEC_FLAG_GRAY(1 << 13) (1 << 13) |
| 762 | /** |
| 763 | * error[?] variables will be set during encoding. |
| 764 | */ |
| 765 | #define AV_CODEC_FLAG_PSNR(1 << 15) (1 << 15) |
| 766 | /** |
| 767 | * Input bitstream might be truncated at a random location |
| 768 | * instead of only at frame boundaries. |
| 769 | */ |
| 770 | #define AV_CODEC_FLAG_TRUNCATED(1 << 16) (1 << 16) |
| 771 | /** |
| 772 | * Use interlaced DCT. |
| 773 | */ |
| 774 | #define AV_CODEC_FLAG_INTERLACED_DCT(1 << 18) (1 << 18) |
| 775 | /** |
| 776 | * Force low delay. |
| 777 | */ |
| 778 | #define AV_CODEC_FLAG_LOW_DELAY(1 << 19) (1 << 19) |
| 779 | /** |
| 780 | * Place global headers in extradata instead of every keyframe. |
| 781 | */ |
| 782 | #define AV_CODEC_FLAG_GLOBAL_HEADER(1 << 22) (1 << 22) |
| 783 | /** |
| 784 | * Use only bitexact stuff (except (I)DCT). |
| 785 | */ |
| 786 | #define AV_CODEC_FLAG_BITEXACT(1 << 23) (1 << 23) |
| 787 | /* Fx : Flag for h263+ extra options */ |
| 788 | /** |
| 789 | * H.263 advanced intra coding / MPEG-4 AC prediction |
| 790 | */ |
| 791 | #define AV_CODEC_FLAG_AC_PRED(1 << 24) (1 << 24) |
| 792 | /** |
| 793 | * interlaced motion estimation |
| 794 | */ |
| 795 | #define AV_CODEC_FLAG_INTERLACED_ME(1 << 29) (1 << 29) |
| 796 | #define AV_CODEC_FLAG_CLOSED_GOP(1U << 31) (1U << 31) |
| 797 | |
| 798 | /** |
| 799 | * Allow non spec compliant speedup tricks. |
| 800 | */ |
| 801 | #define AV_CODEC_FLAG2_FAST(1 << 0) (1 << 0) |
| 802 | /** |
| 803 | * Skip bitstream encoding. |
| 804 | */ |
| 805 | #define AV_CODEC_FLAG2_NO_OUTPUT(1 << 2) (1 << 2) |
| 806 | /** |
| 807 | * Place global headers at every keyframe instead of in extradata. |
| 808 | */ |
| 809 | #define AV_CODEC_FLAG2_LOCAL_HEADER(1 << 3) (1 << 3) |
| 810 | |
| 811 | /** |
| 812 | * timecode is in drop frame format. DEPRECATED!!!! |
| 813 | */ |
| 814 | #define AV_CODEC_FLAG2_DROP_FRAME_TIMECODE(1 << 13) (1 << 13) |
| 815 | |
| 816 | /** |
| 817 | * Input bitstream might be truncated at a packet boundaries |
| 818 | * instead of only at frame boundaries. |
| 819 | */ |
| 820 | #define AV_CODEC_FLAG2_CHUNKS(1 << 15) (1 << 15) |
| 821 | /** |
| 822 | * Discard cropping information from SPS. |
| 823 | */ |
| 824 | #define AV_CODEC_FLAG2_IGNORE_CROP(1 << 16) (1 << 16) |
| 825 | |
| 826 | /** |
| 827 | * Show all frames before the first keyframe |
| 828 | */ |
| 829 | #define AV_CODEC_FLAG2_SHOW_ALL(1 << 22) (1 << 22) |
| 830 | /** |
| 831 | * Export motion vectors through frame side data |
| 832 | */ |
| 833 | #define AV_CODEC_FLAG2_EXPORT_MVS(1 << 28) (1 << 28) |
| 834 | /** |
| 835 | * Do not skip samples and export skip information as frame side data |
| 836 | */ |
| 837 | #define AV_CODEC_FLAG2_SKIP_MANUAL(1 << 29) (1 << 29) |
| 838 | |
| 839 | /* Unsupported options : |
| 840 | * Syntax Arithmetic coding (SAC) |
| 841 | * Reference Picture Selection |
| 842 | * Independent Segment Decoding */ |
| 843 | /* /Fx */ |
| 844 | /* codec capabilities */ |
| 845 | |
| 846 | /** |
| 847 | * Decoder can use draw_horiz_band callback. |
| 848 | */ |
| 849 | #define AV_CODEC_CAP_DRAW_HORIZ_BAND(1 << 0) (1 << 0) |
| 850 | /** |
| 851 | * Codec uses get_buffer() for allocating buffers and supports custom allocators. |
| 852 | * If not set, it might not use get_buffer() at all or use operations that |
| 853 | * assume the buffer was allocated by avcodec_default_get_buffer. |
| 854 | */ |
| 855 | #define AV_CODEC_CAP_DR1(1 << 1) (1 << 1) |
| 856 | #define AV_CODEC_CAP_TRUNCATED(1 << 3) (1 << 3) |
| 857 | /** |
| 858 | * Encoder or decoder requires flushing with NULL input at the end in order to |
| 859 | * give the complete and correct output. |
| 860 | * |
| 861 | * NOTE: If this flag is not set, the codec is guaranteed to never be fed with |
| 862 | * with NULL data. The user can still send NULL data to the public encode |
| 863 | * or decode function, but libavcodec will not pass it along to the codec |
| 864 | * unless this flag is set. |
| 865 | * |
| 866 | * Decoders: |
| 867 | * The decoder has a non-zero delay and needs to be fed with avpkt->data=NULL, |
| 868 | * avpkt->size=0 at the end to get the delayed data until the decoder no longer |
| 869 | * returns frames. |
| 870 | * |
| 871 | * Encoders: |
| 872 | * The encoder needs to be fed with NULL data at the end of encoding until the |
| 873 | * encoder no longer returns data. |
| 874 | * |
| 875 | * NOTE: For encoders implementing the AVCodec.encode2() function, setting this |
| 876 | * flag also means that the encoder must set the pts and duration for |
| 877 | * each output packet. If this flag is not set, the pts and duration will |
| 878 | * be determined by libavcodec from the input frame. |
| 879 | */ |
| 880 | #define AV_CODEC_CAP_DELAY(1 << 5) (1 << 5) |
| 881 | /** |
| 882 | * Codec can be fed a final frame with a smaller size. |
| 883 | * This can be used to prevent truncation of the last audio samples. |
| 884 | */ |
| 885 | #define AV_CODEC_CAP_SMALL_LAST_FRAME(1 << 6) (1 << 6) |
| 886 | |
| 887 | #if FF_API_CAP_VDPAU(57 < 58) |
| 888 | /** |
| 889 | * Codec can export data for HW decoding (VDPAU). |
| 890 | */ |
| 891 | #define AV_CODEC_CAP_HWACCEL_VDPAU(1 << 7) (1 << 7) |
| 892 | #endif |
| 893 | |
| 894 | /** |
| 895 | * Codec can output multiple frames per AVPacket |
| 896 | * Normally demuxers return one frame at a time, demuxers which do not do |
| 897 | * are connected to a parser to split what they return into proper frames. |
| 898 | * This flag is reserved to the very rare category of codecs which have a |
| 899 | * bitstream that cannot be split into frames without timeconsuming |
| 900 | * operations like full decoding. Demuxers carring such bitstreams thus |
| 901 | * may return multiple frames in a packet. This has many disadvantages like |
| 902 | * prohibiting stream copy in many cases thus it should only be considered |
| 903 | * as a last resort. |
| 904 | */ |
| 905 | #define AV_CODEC_CAP_SUBFRAMES(1 << 8) (1 << 8) |
| 906 | /** |
| 907 | * Codec is experimental and is thus avoided in favor of non experimental |
| 908 | * encoders |
| 909 | */ |
| 910 | #define AV_CODEC_CAP_EXPERIMENTAL(1 << 9) (1 << 9) |
| 911 | /** |
| 912 | * Codec should fill in channel configuration and samplerate instead of container |
| 913 | */ |
| 914 | #define AV_CODEC_CAP_CHANNEL_CONF(1 << 10) (1 << 10) |
| 915 | /** |
| 916 | * Codec supports frame-level multithreading. |
| 917 | */ |
| 918 | #define AV_CODEC_CAP_FRAME_THREADS(1 << 12) (1 << 12) |
| 919 | /** |
| 920 | * Codec supports slice-based (or partition-based) multithreading. |
| 921 | */ |
| 922 | #define AV_CODEC_CAP_SLICE_THREADS(1 << 13) (1 << 13) |
| 923 | /** |
| 924 | * Codec supports changed parameters at any point. |
| 925 | */ |
| 926 | #define AV_CODEC_CAP_PARAM_CHANGE(1 << 14) (1 << 14) |
| 927 | /** |
| 928 | * Codec supports avctx->thread_count == 0 (auto). |
| 929 | */ |
| 930 | #define AV_CODEC_CAP_AUTO_THREADS(1 << 15) (1 << 15) |
| 931 | /** |
| 932 | * Audio encoder supports receiving a different number of samples in each call. |
| 933 | */ |
| 934 | #define AV_CODEC_CAP_VARIABLE_FRAME_SIZE(1 << 16) (1 << 16) |
| 935 | /** |
| 936 | * Codec is intra only. |
| 937 | */ |
| 938 | #define AV_CODEC_CAP_INTRA_ONLY0x40000000 0x40000000 |
| 939 | /** |
| 940 | * Codec is lossless. |
| 941 | */ |
| 942 | #define AV_CODEC_CAP_LOSSLESS0x80000000 0x80000000 |
| 943 | |
| 944 | |
| 945 | #if FF_API_WITHOUT_PREFIX(57 < 59) |
| 946 | /** |
| 947 | * Allow decoders to produce frames with data planes that are not aligned |
| 948 | * to CPU requirements (e.g. due to cropping). |
| 949 | */ |
| 950 | #define CODEC_FLAG_UNALIGNED(1 << 0) AV_CODEC_FLAG_UNALIGNED(1 << 0) |
| 951 | #define CODEC_FLAG_QSCALE(1 << 1) AV_CODEC_FLAG_QSCALE(1 << 1) |
| 952 | #define CODEC_FLAG_4MV(1 << 2) AV_CODEC_FLAG_4MV(1 << 2) |
| 953 | #define CODEC_FLAG_OUTPUT_CORRUPT(1 << 3) AV_CODEC_FLAG_OUTPUT_CORRUPT(1 << 3) |
| 954 | #define CODEC_FLAG_QPEL(1 << 4) AV_CODEC_FLAG_QPEL(1 << 4) |
| 955 | #if FF_API_GMC(57 < 58) |
| 956 | /** |
| 957 | * @deprecated use the "gmc" private option of the libxvid encoder |
| 958 | */ |
| 959 | #define CODEC_FLAG_GMC0x0020 0x0020 ///< Use GMC. |
| 960 | #endif |
| 961 | #if FF_API_MV0(57 < 58) |
| 962 | /** |
| 963 | * @deprecated use the flag "mv0" in the "mpv_flags" private option of the |
| 964 | * mpegvideo encoders |
| 965 | */ |
| 966 | #define CODEC_FLAG_MV00x0040 0x0040 |
| 967 | #endif |
| 968 | #if FF_API_INPUT_PRESERVED(57 < 58) |
| 969 | /** |
| 970 | * @deprecated passing reference-counted frames to the encoders replaces this |
| 971 | * flag |
| 972 | */ |
| 973 | #define CODEC_FLAG_INPUT_PRESERVED0x0100 0x0100 |
| 974 | #endif |
| 975 | #define CODEC_FLAG_PASS1(1 << 9) AV_CODEC_FLAG_PASS1(1 << 9) |
| 976 | #define CODEC_FLAG_PASS2(1 << 10) AV_CODEC_FLAG_PASS2(1 << 10) |
| 977 | #define CODEC_FLAG_GRAY(1 << 13) AV_CODEC_FLAG_GRAY(1 << 13) |
| 978 | #if FF_API_EMU_EDGE(57 < 58) |
| 979 | /** |
| 980 | * @deprecated edges are not used/required anymore. I.e. this flag is now always |
| 981 | * set. |
| 982 | */ |
| 983 | #define CODEC_FLAG_EMU_EDGE0x4000 0x4000 |
| 984 | #endif |
| 985 | #define CODEC_FLAG_PSNR(1 << 15) AV_CODEC_FLAG_PSNR(1 << 15) |
| 986 | #define CODEC_FLAG_TRUNCATED(1 << 16) AV_CODEC_FLAG_TRUNCATED(1 << 16) |
| 987 | |
| 988 | #if FF_API_NORMALIZE_AQP(57 < 58) |
| 989 | /** |
| 990 | * @deprecated use the flag "naq" in the "mpv_flags" private option of the |
| 991 | * mpegvideo encoders |
| 992 | */ |
| 993 | #define CODEC_FLAG_NORMALIZE_AQP0x00020000 0x00020000 |
| 994 | #endif |
| 995 | #define CODEC_FLAG_INTERLACED_DCT(1 << 18) AV_CODEC_FLAG_INTERLACED_DCT(1 << 18) |
| 996 | #define CODEC_FLAG_LOW_DELAY(1 << 19) AV_CODEC_FLAG_LOW_DELAY(1 << 19) |
| 997 | #define CODEC_FLAG_GLOBAL_HEADER(1 << 22) AV_CODEC_FLAG_GLOBAL_HEADER(1 << 22) |
| 998 | #define CODEC_FLAG_BITEXACT(1 << 23) AV_CODEC_FLAG_BITEXACT(1 << 23) |
| 999 | #define CODEC_FLAG_AC_PRED(1 << 24) AV_CODEC_FLAG_AC_PRED(1 << 24) |
| 1000 | #define CODEC_FLAG_LOOP_FILTER(1 << 11) AV_CODEC_FLAG_LOOP_FILTER(1 << 11) |
| 1001 | #define CODEC_FLAG_INTERLACED_ME(1 << 29) AV_CODEC_FLAG_INTERLACED_ME(1 << 29) |
| 1002 | #define CODEC_FLAG_CLOSED_GOP(1U << 31) AV_CODEC_FLAG_CLOSED_GOP(1U << 31) |
| 1003 | #define CODEC_FLAG2_FAST(1 << 0) AV_CODEC_FLAG2_FAST(1 << 0) |
| 1004 | #define CODEC_FLAG2_NO_OUTPUT(1 << 2) AV_CODEC_FLAG2_NO_OUTPUT(1 << 2) |
| 1005 | #define CODEC_FLAG2_LOCAL_HEADER(1 << 3) AV_CODEC_FLAG2_LOCAL_HEADER(1 << 3) |
| 1006 | #define CODEC_FLAG2_DROP_FRAME_TIMECODE(1 << 13) AV_CODEC_FLAG2_DROP_FRAME_TIMECODE(1 << 13) |
| 1007 | #define CODEC_FLAG2_IGNORE_CROP(1 << 16) AV_CODEC_FLAG2_IGNORE_CROP(1 << 16) |
| 1008 | |
| 1009 | #define CODEC_FLAG2_CHUNKS(1 << 15) AV_CODEC_FLAG2_CHUNKS(1 << 15) |
| 1010 | #define CODEC_FLAG2_SHOW_ALL(1 << 22) AV_CODEC_FLAG2_SHOW_ALL(1 << 22) |
| 1011 | #define CODEC_FLAG2_EXPORT_MVS(1 << 28) AV_CODEC_FLAG2_EXPORT_MVS(1 << 28) |
| 1012 | #define CODEC_FLAG2_SKIP_MANUAL(1 << 29) AV_CODEC_FLAG2_SKIP_MANUAL(1 << 29) |
| 1013 | |
| 1014 | /* Unsupported options : |
| 1015 | * Syntax Arithmetic coding (SAC) |
| 1016 | * Reference Picture Selection |
| 1017 | * Independent Segment Decoding */ |
| 1018 | /* /Fx */ |
| 1019 | /* codec capabilities */ |
| 1020 | |
| 1021 | #define CODEC_CAP_DRAW_HORIZ_BAND(1 << 0) AV_CODEC_CAP_DRAW_HORIZ_BAND(1 << 0) ///< Decoder can use draw_horiz_band callback. |
| 1022 | /** |
| 1023 | * Codec uses get_buffer() for allocating buffers and supports custom allocators. |
| 1024 | * If not set, it might not use get_buffer() at all or use operations that |
| 1025 | * assume the buffer was allocated by avcodec_default_get_buffer. |
| 1026 | */ |
| 1027 | #define CODEC_CAP_DR1(1 << 1) AV_CODEC_CAP_DR1(1 << 1) |
| 1028 | #define CODEC_CAP_TRUNCATED(1 << 3) AV_CODEC_CAP_TRUNCATED(1 << 3) |
| 1029 | #if FF_API_XVMC(55 < 56) |
| 1030 | /* Codec can export data for HW decoding. This flag indicates that |
| 1031 | * the codec would call get_format() with list that might contain HW accelerated |
| 1032 | * pixel formats (XvMC, VDPAU, VAAPI, etc). The application can pick any of them |
| 1033 | * including raw image format. |
| 1034 | * The application can use the passed context to determine bitstream version, |
| 1035 | * chroma format, resolution etc. |
| 1036 | */ |
| 1037 | #define CODEC_CAP_HWACCEL0x0010 0x0010 |
| 1038 | #endif /* FF_API_XVMC */ |
| 1039 | /** |
| 1040 | * Encoder or decoder requires flushing with NULL input at the end in order to |
| 1041 | * give the complete and correct output. |
| 1042 | * |
| 1043 | * NOTE: If this flag is not set, the codec is guaranteed to never be fed with |
| 1044 | * with NULL data. The user can still send NULL data to the public encode |
| 1045 | * or decode function, but libavcodec will not pass it along to the codec |
| 1046 | * unless this flag is set. |
| 1047 | * |
| 1048 | * Decoders: |
| 1049 | * The decoder has a non-zero delay and needs to be fed with avpkt->data=NULL, |
| 1050 | * avpkt->size=0 at the end to get the delayed data until the decoder no longer |
| 1051 | * returns frames. |
| 1052 | * |
| 1053 | * Encoders: |
| 1054 | * The encoder needs to be fed with NULL data at the end of encoding until the |
| 1055 | * encoder no longer returns data. |
| 1056 | * |
| 1057 | * NOTE: For encoders implementing the AVCodec.encode2() function, setting this |
| 1058 | * flag also means that the encoder must set the pts and duration for |
| 1059 | * each output packet. If this flag is not set, the pts and duration will |
| 1060 | * be determined by libavcodec from the input frame. |
| 1061 | */ |
| 1062 | #define CODEC_CAP_DELAY(1 << 5) AV_CODEC_CAP_DELAY(1 << 5) |
| 1063 | /** |
| 1064 | * Codec can be fed a final frame with a smaller size. |
| 1065 | * This can be used to prevent truncation of the last audio samples. |
| 1066 | */ |
| 1067 | #define CODEC_CAP_SMALL_LAST_FRAME(1 << 6) AV_CODEC_CAP_SMALL_LAST_FRAME(1 << 6) |
| 1068 | #if FF_API_CAP_VDPAU(57 < 58) |
| 1069 | /** |
| 1070 | * Codec can export data for HW decoding (VDPAU). |
| 1071 | */ |
| 1072 | #define CODEC_CAP_HWACCEL_VDPAU(1 << 7) AV_CODEC_CAP_HWACCEL_VDPAU(1 << 7) |
| 1073 | #endif |
| 1074 | /** |
| 1075 | * Codec can output multiple frames per AVPacket |
| 1076 | * Normally demuxers return one frame at a time, demuxers which do not do |
| 1077 | * are connected to a parser to split what they return into proper frames. |
| 1078 | * This flag is reserved to the very rare category of codecs which have a |
| 1079 | * bitstream that cannot be split into frames without timeconsuming |
| 1080 | * operations like full decoding. Demuxers carring such bitstreams thus |
| 1081 | * may return multiple frames in a packet. This has many disadvantages like |
| 1082 | * prohibiting stream copy in many cases thus it should only be considered |
| 1083 | * as a last resort. |
| 1084 | */ |
| 1085 | #define CODEC_CAP_SUBFRAMES(1 << 8) AV_CODEC_CAP_SUBFRAMES(1 << 8) |
| 1086 | /** |
| 1087 | * Codec is experimental and is thus avoided in favor of non experimental |
| 1088 | * encoders |
| 1089 | */ |
| 1090 | #define CODEC_CAP_EXPERIMENTAL(1 << 9) AV_CODEC_CAP_EXPERIMENTAL(1 << 9) |
| 1091 | /** |
| 1092 | * Codec should fill in channel configuration and samplerate instead of container |
| 1093 | */ |
| 1094 | #define CODEC_CAP_CHANNEL_CONF(1 << 10) AV_CODEC_CAP_CHANNEL_CONF(1 << 10) |
| 1095 | #if FF_API_NEG_LINESIZES(57 < 58) |
| 1096 | /** |
| 1097 | * @deprecated no codecs use this capability |
| 1098 | */ |
| 1099 | #define CODEC_CAP_NEG_LINESIZES0x0800 0x0800 |
| 1100 | #endif |
| 1101 | /** |
| 1102 | * Codec supports frame-level multithreading. |
| 1103 | */ |
| 1104 | #define CODEC_CAP_FRAME_THREADS(1 << 12) AV_CODEC_CAP_FRAME_THREADS(1 << 12) |
| 1105 | /** |
| 1106 | * Codec supports slice-based (or partition-based) multithreading. |
| 1107 | */ |
| 1108 | #define CODEC_CAP_SLICE_THREADS(1 << 13) AV_CODEC_CAP_SLICE_THREADS(1 << 13) |
| 1109 | /** |
| 1110 | * Codec supports changed parameters at any point. |
| 1111 | */ |
| 1112 | #define CODEC_CAP_PARAM_CHANGE(1 << 14) AV_CODEC_CAP_PARAM_CHANGE(1 << 14) |
| 1113 | /** |
| 1114 | * Codec supports avctx->thread_count == 0 (auto). |
| 1115 | */ |
| 1116 | #define CODEC_CAP_AUTO_THREADS(1 << 15) AV_CODEC_CAP_AUTO_THREADS(1 << 15) |
| 1117 | /** |
| 1118 | * Audio encoder supports receiving a different number of samples in each call. |
| 1119 | */ |
| 1120 | #define CODEC_CAP_VARIABLE_FRAME_SIZE(1 << 16) AV_CODEC_CAP_VARIABLE_FRAME_SIZE(1 << 16) |
| 1121 | /** |
| 1122 | * Codec is intra only. |
| 1123 | */ |
| 1124 | #define CODEC_CAP_INTRA_ONLY0x40000000 AV_CODEC_CAP_INTRA_ONLY0x40000000 |
| 1125 | /** |
| 1126 | * Codec is lossless. |
| 1127 | */ |
| 1128 | #define CODEC_CAP_LOSSLESS0x80000000 AV_CODEC_CAP_LOSSLESS0x80000000 |
| 1129 | |
| 1130 | /** |
| 1131 | * HWAccel is experimental and is thus avoided in favor of non experimental |
| 1132 | * codecs |
| 1133 | */ |
| 1134 | #define HWACCEL_CODEC_CAP_EXPERIMENTAL0x0200 0x0200 |
| 1135 | #endif /* FF_API_WITHOUT_PREFIX */ |
| 1136 | |
| 1137 | #if FF_API_MB_TYPE(57 < 58) |
| 1138 | //The following defines may change, don't expect compatibility if you use them. |
| 1139 | #define MB_TYPE_INTRA4x40x0001 0x0001 |
| 1140 | #define MB_TYPE_INTRA16x160x0002 0x0002 //FIXME H.264-specific |
| 1141 | #define MB_TYPE_INTRA_PCM0x0004 0x0004 //FIXME H.264-specific |
| 1142 | #define MB_TYPE_16x160x0008 0x0008 |
| 1143 | #define MB_TYPE_16x80x0010 0x0010 |
| 1144 | #define MB_TYPE_8x160x0020 0x0020 |
| 1145 | #define MB_TYPE_8x80x0040 0x0040 |
| 1146 | #define MB_TYPE_INTERLACED0x0080 0x0080 |
| 1147 | #define MB_TYPE_DIRECT20x0100 0x0100 //FIXME |
| 1148 | #define MB_TYPE_ACPRED0x0200 0x0200 |
| 1149 | #define MB_TYPE_GMC0x0400 0x0400 |
| 1150 | #define MB_TYPE_SKIP0x0800 0x0800 |
| 1151 | #define MB_TYPE_P0L00x1000 0x1000 |
| 1152 | #define MB_TYPE_P1L00x2000 0x2000 |
| 1153 | #define MB_TYPE_P0L10x4000 0x4000 |
| 1154 | #define MB_TYPE_P1L10x8000 0x8000 |
| 1155 | #define MB_TYPE_L0(0x1000 | 0x2000) (MB_TYPE_P0L00x1000 | MB_TYPE_P1L00x2000) |
| 1156 | #define MB_TYPE_L1(0x4000 | 0x8000) (MB_TYPE_P0L10x4000 | MB_TYPE_P1L10x8000) |
| 1157 | #define MB_TYPE_L0L1((0x1000 | 0x2000) | (0x4000 | 0x8000)) (MB_TYPE_L0(0x1000 | 0x2000) | MB_TYPE_L1(0x4000 | 0x8000)) |
| 1158 | #define MB_TYPE_QUANT0x00010000 0x00010000 |
| 1159 | #define MB_TYPE_CBP0x00020000 0x00020000 |
| 1160 | //Note bits 24-31 are reserved for codec specific use (h264 ref0, mpeg1 0mv, ...) |
| 1161 | #endif |
| 1162 | |
| 1163 | /** |
| 1164 | * Pan Scan area. |
| 1165 | * This specifies the area which should be displayed. |
| 1166 | * Note there may be multiple such areas for one frame. |
| 1167 | */ |
| 1168 | typedef struct AVPanScan{ |
| 1169 | /** |
| 1170 | * id |
| 1171 | * - encoding: Set by user. |
| 1172 | * - decoding: Set by libavcodec. |
| 1173 | */ |
| 1174 | int id; |
| 1175 | |
| 1176 | /** |
| 1177 | * width and height in 1/16 pel |
| 1178 | * - encoding: Set by user. |
| 1179 | * - decoding: Set by libavcodec. |
| 1180 | */ |
| 1181 | int width; |
| 1182 | int height; |
| 1183 | |
| 1184 | /** |
| 1185 | * position of the top left corner in 1/16 pel for up to 3 fields/frames |
| 1186 | * - encoding: Set by user. |
| 1187 | * - decoding: Set by libavcodec. |
| 1188 | */ |
| 1189 | int16_t position[3][2]; |
| 1190 | }AVPanScan; |
| 1191 | |
| 1192 | /** |
| 1193 | * This structure describes the bitrate properties of an encoded bitstream. It |
| 1194 | * roughly corresponds to a subset the VBV parameters for MPEG-2 or HRD |
| 1195 | * parameters for H.264/HEVC. |
| 1196 | */ |
| 1197 | typedef struct AVCPBProperties { |
| 1198 | /** |
| 1199 | * Maximum bitrate of the stream, in bits per second. |
| 1200 | * Zero if unknown or unspecified. |
| 1201 | */ |
| 1202 | int max_bitrate; |
| 1203 | /** |
| 1204 | * Minimum bitrate of the stream, in bits per second. |
| 1205 | * Zero if unknown or unspecified. |
| 1206 | */ |
| 1207 | int min_bitrate; |
| 1208 | /** |
| 1209 | * Average bitrate of the stream, in bits per second. |
| 1210 | * Zero if unknown or unspecified. |
| 1211 | */ |
| 1212 | int avg_bitrate; |
| 1213 | |
| 1214 | /** |
| 1215 | * The size of the buffer to which the ratecontrol is applied, in bits. |
| 1216 | * Zero if unknown or unspecified. |
| 1217 | */ |
| 1218 | int buffer_size; |
| 1219 | |
| 1220 | /** |
| 1221 | * The delay between the time the packet this structure is associated with |
| 1222 | * is received and the time when it should be decoded, in periods of a 27MHz |
| 1223 | * clock. |
| 1224 | * |
| 1225 | * UINT64_MAX when unknown or unspecified. |
| 1226 | */ |
| 1227 | uint64_t vbv_delay; |
| 1228 | } AVCPBProperties; |
| 1229 | |
| 1230 | #if FF_API_QSCALE_TYPE(57 < 58) |
| 1231 | #define FF_QSCALE_TYPE_MPEG10 0 |
| 1232 | #define FF_QSCALE_TYPE_MPEG21 1 |
| 1233 | #define FF_QSCALE_TYPE_H2642 2 |
| 1234 | #define FF_QSCALE_TYPE_VP563 3 |
| 1235 | #endif |
| 1236 | |
| 1237 | /** |
| 1238 | * The decoder will keep a reference to the frame and may reuse it later. |
| 1239 | */ |
| 1240 | #define AV_GET_BUFFER_FLAG_REF(1 << 0) (1 << 0) |
| 1241 | |
| 1242 | /** |
| 1243 | * @defgroup lavc_packet AVPacket |
| 1244 | * |
| 1245 | * Types and functions for working with AVPacket. |
| 1246 | * @{ |
| 1247 | */ |
| 1248 | enum AVPacketSideDataType { |
| 1249 | AV_PKT_DATA_PALETTE, |
| 1250 | AV_PKT_DATA_NEW_EXTRADATA, |
| 1251 | |
| 1252 | /** |
| 1253 | * An AV_PKT_DATA_PARAM_CHANGE side data packet is laid out as follows: |
| 1254 | * @code |
| 1255 | * u32le param_flags |
| 1256 | * if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT) |
| 1257 | * s32le channel_count |
| 1258 | * if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT) |
| 1259 | * u64le channel_layout |
| 1260 | * if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE) |
| 1261 | * s32le sample_rate |
| 1262 | * if (param_flags & AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS) |
| 1263 | * s32le width |
| 1264 | * s32le height |
| 1265 | * @endcode |
| 1266 | */ |
| 1267 | AV_PKT_DATA_PARAM_CHANGE, |
| 1268 | |
| 1269 | /** |
| 1270 | * An AV_PKT_DATA_H263_MB_INFO side data packet contains a number of |
| 1271 | * structures with info about macroblocks relevant to splitting the |
| 1272 | * packet into smaller packets on macroblock edges (e.g. as for RFC 2190). |
| 1273 | * That is, it does not necessarily contain info about all macroblocks, |
| 1274 | * as long as the distance between macroblocks in the info is smaller |
| 1275 | * than the target payload size. |
| 1276 | * Each MB info structure is 12 bytes, and is laid out as follows: |
| 1277 | * @code |
| 1278 | * u32le bit offset from the start of the packet |
| 1279 | * u8 current quantizer at the start of the macroblock |
| 1280 | * u8 GOB number |
| 1281 | * u16le macroblock address within the GOB |
| 1282 | * u8 horizontal MV predictor |
| 1283 | * u8 vertical MV predictor |
| 1284 | * u8 horizontal MV predictor for block number 3 |
| 1285 | * u8 vertical MV predictor for block number 3 |
| 1286 | * @endcode |
| 1287 | */ |
| 1288 | AV_PKT_DATA_H263_MB_INFO, |
| 1289 | |
| 1290 | /** |
| 1291 | * This side data should be associated with an audio stream and contains |
| 1292 | * ReplayGain information in form of the AVReplayGain struct. |
| 1293 | */ |
| 1294 | AV_PKT_DATA_REPLAYGAIN, |
| 1295 | |
| 1296 | /** |
| 1297 | * This side data contains a 3x3 transformation matrix describing an affine |
| 1298 | * transformation that needs to be applied to the decoded video frames for |
| 1299 | * correct presentation. |
| 1300 | * |
| 1301 | * See libavutil/display.h for a detailed description of the data. |
| 1302 | */ |
| 1303 | AV_PKT_DATA_DISPLAYMATRIX, |
| 1304 | |
| 1305 | /** |
| 1306 | * This side data should be associated with a video stream and contains |
| 1307 | * Stereoscopic 3D information in form of the AVStereo3D struct. |
| 1308 | */ |
| 1309 | AV_PKT_DATA_STEREO3D, |
| 1310 | |
| 1311 | /** |
| 1312 | * This side data should be associated with an audio stream and corresponds |
| 1313 | * to enum AVAudioServiceType. |
| 1314 | */ |
| 1315 | AV_PKT_DATA_AUDIO_SERVICE_TYPE, |
| 1316 | |
| 1317 | /** |
| 1318 | * This side data contains quality related information from the encoder. |
| 1319 | * @code |
| 1320 | * u32le quality factor of the compressed frame. Allowed range is between 1 (good) and FF_LAMBDA_MAX (bad). |
| 1321 | * u8 picture type |
| 1322 | * u8 error count |
| 1323 | * u16 reserved |
| 1324 | * u64le[error count] sum of squared differences between encoder in and output |
| 1325 | * @endcode |
| 1326 | */ |
| 1327 | AV_PKT_DATA_QUALITY_STATS, |
| 1328 | |
| 1329 | /** |
| 1330 | * This side data contains an integer value representing the stream index |
| 1331 | * of a "fallback" track. A fallback track indicates an alternate |
| 1332 | * track to use when the current track can not be decoded for some reason. |
| 1333 | * e.g. no decoder available for codec. |
| 1334 | */ |
| 1335 | AV_PKT_DATA_FALLBACK_TRACK, |
| 1336 | |
| 1337 | /** |
| 1338 | * This side data corresponds to the AVCPBProperties struct. |
| 1339 | */ |
| 1340 | AV_PKT_DATA_CPB_PROPERTIES, |
| 1341 | |
| 1342 | /** |
| 1343 | * Recommmends skipping the specified number of samples |
| 1344 | * @code |
| 1345 | * u32le number of samples to skip from start of this packet |
| 1346 | * u32le number of samples to skip from end of this packet |
| 1347 | * u8 reason for start skip |
| 1348 | * u8 reason for end skip (0=padding silence, 1=convergence) |
| 1349 | * @endcode |
| 1350 | */ |
| 1351 | AV_PKT_DATA_SKIP_SAMPLES=70, |
| 1352 | |
| 1353 | /** |
| 1354 | * An AV_PKT_DATA_JP_DUALMONO side data packet indicates that |
| 1355 | * the packet may contain "dual mono" audio specific to Japanese DTV |
| 1356 | * and if it is true, recommends only the selected channel to be used. |
| 1357 | * @code |
| 1358 | * u8 selected channels (0=mail/left, 1=sub/right, 2=both) |
| 1359 | * @endcode |
| 1360 | */ |
| 1361 | AV_PKT_DATA_JP_DUALMONO, |
| 1362 | |
| 1363 | /** |
| 1364 | * A list of zero terminated key/value strings. There is no end marker for |
| 1365 | * the list, so it is required to rely on the side data size to stop. |
| 1366 | */ |
| 1367 | AV_PKT_DATA_STRINGS_METADATA, |
| 1368 | |
| 1369 | /** |
| 1370 | * Subtitle event position |
| 1371 | * @code |
| 1372 | * u32le x1 |
| 1373 | * u32le y1 |
| 1374 | * u32le x2 |
| 1375 | * u32le y2 |
| 1376 | * @endcode |
| 1377 | */ |
| 1378 | AV_PKT_DATA_SUBTITLE_POSITION, |
| 1379 | |
| 1380 | /** |
| 1381 | * Data found in BlockAdditional element of matroska container. There is |
| 1382 | * no end marker for the data, so it is required to rely on the side data |
| 1383 | * size to recognize the end. 8 byte id (as found in BlockAddId) followed |
| 1384 | * by data. |
| 1385 | */ |
| 1386 | AV_PKT_DATA_MATROSKA_BLOCKADDITIONAL, |
| 1387 | |
| 1388 | /** |
| 1389 | * The optional first identifier line of a WebVTT cue. |
| 1390 | */ |
| 1391 | AV_PKT_DATA_WEBVTT_IDENTIFIER, |
| 1392 | |
| 1393 | /** |
| 1394 | * The optional settings (rendering instructions) that immediately |
| 1395 | * follow the timestamp specifier of a WebVTT cue. |
| 1396 | */ |
| 1397 | AV_PKT_DATA_WEBVTT_SETTINGS, |
| 1398 | |
| 1399 | /** |
| 1400 | * A list of zero terminated key/value strings. There is no end marker for |
| 1401 | * the list, so it is required to rely on the side data size to stop. This |
| 1402 | * side data includes updated metadata which appeared in the stream. |
| 1403 | */ |
| 1404 | AV_PKT_DATA_METADATA_UPDATE, |
| 1405 | }; |
| 1406 | |
| 1407 | #define AV_PKT_DATA_QUALITY_FACTORAV_PKT_DATA_QUALITY_STATS AV_PKT_DATA_QUALITY_STATS //DEPRECATED |
| 1408 | |
| 1409 | typedef struct AVPacketSideData { |
| 1410 | uint8_t *data; |
| 1411 | int size; |
| 1412 | enum AVPacketSideDataType type; |
| 1413 | } AVPacketSideData; |
| 1414 | |
| 1415 | /** |
| 1416 | * This structure stores compressed data. It is typically exported by demuxers |
| 1417 | * and then passed as input to decoders, or received as output from encoders and |
| 1418 | * then passed to muxers. |
| 1419 | * |
| 1420 | * For video, it should typically contain one compressed frame. For audio it may |
| 1421 | * contain several compressed frames. Encoders are allowed to output empty |
| 1422 | * packets, with no compressed data, containing only side data |
| 1423 | * (e.g. to update some stream parameters at the end of encoding). |
| 1424 | * |
| 1425 | * AVPacket is one of the few structs in FFmpeg, whose size is a part of public |
| 1426 | * ABI. Thus it may be allocated on stack and no new fields can be added to it |
| 1427 | * without libavcodec and libavformat major bump. |
| 1428 | * |
| 1429 | * The semantics of data ownership depends on the buf field. |
| 1430 | * If it is set, the packet data is dynamically allocated and is |
| 1431 | * valid indefinitely until a call to av_packet_unref() reduces the |
| 1432 | * reference count to 0. |
| 1433 | * |
| 1434 | * If the buf field is not set av_packet_ref() would make a copy instead |
| 1435 | * of increasing the reference count. |
| 1436 | * |
| 1437 | * The side data is always allocated with av_malloc(), copied by |
| 1438 | * av_packet_ref() and freed by av_packet_unref(). |
| 1439 | * |
| 1440 | * @see av_packet_ref |
| 1441 | * @see av_packet_unref |
| 1442 | */ |
| 1443 | typedef struct AVPacket { |
| 1444 | /** |
| 1445 | * A reference to the reference-counted buffer where the packet data is |
| 1446 | * stored. |
| 1447 | * May be NULL, then the packet data is not reference-counted. |
| 1448 | */ |
| 1449 | AVBufferRef *buf; |
| 1450 | /** |
| 1451 | * Presentation timestamp in AVStream->time_base units; the time at which |
| 1452 | * the decompressed packet will be presented to the user. |
| 1453 | * Can be AV_NOPTS_VALUE if it is not stored in the file. |
| 1454 | * pts MUST be larger or equal to dts as presentation cannot happen before |
| 1455 | * decompression, unless one wants to view hex dumps. Some formats misuse |
| 1456 | * the terms dts and pts/cts to mean something different. Such timestamps |
| 1457 | * must be converted to true pts/dts before they are stored in AVPacket. |
| 1458 | */ |
| 1459 | int64_t pts; |
| 1460 | /** |
| 1461 | * Decompression timestamp in AVStream->time_base units; the time at which |
| 1462 | * the packet is decompressed. |
| 1463 | * Can be AV_NOPTS_VALUE if it is not stored in the file. |
| 1464 | */ |
| 1465 | int64_t dts; |
| 1466 | uint8_t *data; |
| 1467 | int size; |
| 1468 | int stream_index; |
| 1469 | /** |
| 1470 | * A combination of AV_PKT_FLAG values |
| 1471 | */ |
| 1472 | int flags; |
| 1473 | /** |
| 1474 | * Additional packet data that can be provided by the container. |
| 1475 | * Packet can contain several types of side information. |
| 1476 | */ |
| 1477 | AVPacketSideData *side_data; |
| 1478 | int side_data_elems; |
| 1479 | |
| 1480 | /** |
| 1481 | * Duration of this packet in AVStream->time_base units, 0 if unknown. |
| 1482 | * Equals next_pts - this_pts in presentation order. |
| 1483 | */ |
| 1484 | int64_t duration; |
| 1485 | |
| 1486 | int64_t pos; ///< byte position in stream, -1 if unknown |
| 1487 | |
| 1488 | #if FF_API_CONVERGENCE_DURATION(57 < 59) |
| 1489 | /** |
| 1490 | * @deprecated Same as the duration field, but as int64_t. This was required |
| 1491 | * for Matroska subtitles, whose duration values could overflow when the |
| 1492 | * duration field was still an int. |
| 1493 | */ |
| 1494 | attribute_deprecated__attribute__((deprecated)) |
| 1495 | int64_t convergence_duration; |
| 1496 | #endif |
| 1497 | } AVPacket; |
| 1498 | #define AV_PKT_FLAG_KEY0x0001 0x0001 ///< The packet contains a keyframe |
| 1499 | #define AV_PKT_FLAG_CORRUPT0x0002 0x0002 ///< The packet content is corrupted |
| 1500 | |
| 1501 | enum AVSideDataParamChangeFlags { |
| 1502 | AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_COUNT = 0x0001, |
| 1503 | AV_SIDE_DATA_PARAM_CHANGE_CHANNEL_LAYOUT = 0x0002, |
| 1504 | AV_SIDE_DATA_PARAM_CHANGE_SAMPLE_RATE = 0x0004, |
| 1505 | AV_SIDE_DATA_PARAM_CHANGE_DIMENSIONS = 0x0008, |
| 1506 | }; |
| 1507 | /** |
| 1508 | * @} |
| 1509 | */ |
| 1510 | |
| 1511 | struct AVCodecInternal; |
| 1512 | |
| 1513 | enum AVFieldOrder { |
| 1514 | AV_FIELD_UNKNOWN, |
| 1515 | AV_FIELD_PROGRESSIVE, |
| 1516 | AV_FIELD_TT, //< Top coded_first, top displayed first |
| 1517 | AV_FIELD_BB, //< Bottom coded first, bottom displayed first |
| 1518 | AV_FIELD_TB, //< Top coded first, bottom displayed first |
| 1519 | AV_FIELD_BT, //< Bottom coded first, top displayed first |
| 1520 | }; |
| 1521 | |
| 1522 | /** |
| 1523 | * main external API structure. |
| 1524 | * New fields can be added to the end with minor version bumps. |
| 1525 | * Removal, reordering and changes to existing fields require a major |
| 1526 | * version bump. |
| 1527 | * Please use AVOptions (av_opt* / av_set/get*()) to access these fields from user |
| 1528 | * applications. |
| 1529 | * sizeof(AVCodecContext) must not be used outside libav*. |
| 1530 | */ |
| 1531 | typedef struct AVCodecContext { |
Excessive padding in 'struct AVCodecContext' (40 padding bytes, where 0 is optimal). Optimal fields order: av_class, codec, priv_data, internal, opaque, bit_rate, extradata, draw_horiz_band, get_format, slice_offset, intra_matrix, inter_matrix, channel_layout, request_channel_layout, get_buffer2, rc_override, rc_eq, rc_max_rate, rc_min_rate, timecode_frame_start, rtp_callback, stats_out, stats_in, reordered_opaque, hwaccel, hwaccel_context, coded_frame, execute, execute2, subtitle_header, vbv_delay, codec_descriptor, pts_correction_num_faulty_pts, pts_correction_num_faulty_dts, pts_correction_last_pts, pts_correction_last_dts, sub_charenc, chroma_intra_matrix, dump_separator, codec_whitelist, coded_side_data, error, log_level_offset, codec_type, codec_id, codec_tag, stream_codec_tag, bit_rate_tolerance, global_quality, compression_level, flags, flags2, extradata_size, ticks_per_frame, delay, width, height, coded_width, coded_height, gop_size, pix_fmt, me_method, max_b_frames, b_quant_factor, rc_strategy, b_frame_strategy, b_quant_offset, has_b_frames, mpeg_quant, i_quant_factor, i_quant_offset, lumi_masking, temporal_cplx_masking, spatial_cplx_masking, p_masking, dark_masking, slice_count, prediction_method, me_cmp, me_sub_cmp, mb_cmp, ildct_cmp, dia_size, last_predictor_count, pre_me, me_pre_cmp, pre_dia_size, me_subpel_quality, dtg_active_format, me_range, intra_quant_bias, inter_quant_bias, slice_flags, xvmc_acceleration, mb_decision, scenechange_threshold, noise_reduction, me_threshold, mb_threshold, intra_dc_precision, skip_top, skip_bottom, border_masking, mb_lmin, mb_lmax, me_penalty_compensation, bidir_refine, brd_scale, keyint_min, refs, chromaoffset, scenechange_factor, mv0_threshold, b_sensitivity, color_primaries, color_trc, colorspace, color_range, chroma_sample_location, slices, field_order, sample_rate, channels, sample_fmt, frame_size, frame_number, block_align, cutoff, audio_service_type, request_sample_fmt, refcounted_frames, qcompress, qblur, qmin, qmax, max_qdiff, rc_qsquish, rc_qmod_amp, rc_qmod_freq, rc_buffer_size, rc_override_count, rc_buffer_aggressivity, rc_initial_cplx, rc_max_available_vbv_use, rc_min_vbv_overflow_use, rc_initial_buffer_occupancy, coder_type, context_model, lmin, lmax, frame_skip_threshold, frame_skip_factor, frame_skip_exp, frame_skip_cmp, trellis, min_prediction_order, max_prediction_order, rtp_payload_size, mv_bits, header_bits, i_tex_bits, p_tex_bits, i_count, p_count, skip_count, misc_bits, frame_bits, workaround_bugs, strict_std_compliance, error_concealment, debug, debug_mv, err_recognition, dct_algo, idct_algo, bits_per_coded_sample, bits_per_raw_sample, lowres, thread_count, thread_type, active_thread_type, thread_safe_callbacks, nsse_weight, profile, level, skip_loop_filter, skip_idct, skip_frame, subtitle_header_size, error_rate, side_data_only_packets, initial_padding, sw_pix_fmt, sub_charenc_mode, skip_alpha, seek_preroll, properties, nb_coded_side_data, time_base, sample_aspect_ratio, framerate, pkt_timebase, codec_name, consider reordering the fields or adding explicit padding members | |
| 1532 | /** |
| 1533 | * information on struct for av_log |
| 1534 | * - set by avcodec_alloc_context3 |
| 1535 | */ |
| 1536 | const AVClass *av_class; |
| 1537 | int log_level_offset; |
| 1538 | |
| 1539 | enum AVMediaType codec_type; /* see AVMEDIA_TYPE_xxx */ |
| 1540 | const struct AVCodec *codec; |
| 1541 | #if FF_API_CODEC_NAME(57 < 58) |
| 1542 | /** |
| 1543 | * @deprecated this field is not used for anything in libavcodec |
| 1544 | */ |
| 1545 | attribute_deprecated__attribute__((deprecated)) |
| 1546 | char codec_name[32]; |
| 1547 | #endif |
| 1548 | enum AVCodecID codec_id; /* see AV_CODEC_ID_xxx */ |
| 1549 | |
| 1550 | /** |
| 1551 | * fourcc (LSB first, so "ABCD" -> ('D'<<24) + ('C'<<16) + ('B'<<8) + 'A'). |
| 1552 | * This is used to work around some encoder bugs. |
| 1553 | * A demuxer should set this to what is stored in the field used to identify the codec. |
| 1554 | * If there are multiple such fields in a container then the demuxer should choose the one |
| 1555 | * which maximizes the information about the used codec. |
| 1556 | * If the codec tag field in a container is larger than 32 bits then the demuxer should |
| 1557 | * remap the longer ID to 32 bits with a table or other structure. Alternatively a new |
| 1558 | * extra_codec_tag + size could be added but for this a clear advantage must be demonstrated |
| 1559 | * first. |
| 1560 | * - encoding: Set by user, if not then the default based on codec_id will be used. |
| 1561 | * - decoding: Set by user, will be converted to uppercase by libavcodec during init. |
| 1562 | */ |
| 1563 | unsigned int codec_tag; |
| 1564 | |
| 1565 | #if FF_API_STREAM_CODEC_TAG(57 < 59) |
| 1566 | /** |
| 1567 | * @deprecated this field is unused |
| 1568 | */ |
| 1569 | attribute_deprecated__attribute__((deprecated)) |
| 1570 | unsigned int stream_codec_tag; |
| 1571 | #endif |
| 1572 | |
| 1573 | void *priv_data; |
| 1574 | |
| 1575 | /** |
| 1576 | * Private context used for internal data. |
| 1577 | * |
| 1578 | * Unlike priv_data, this is not codec-specific. It is used in general |
| 1579 | * libavcodec functions. |
| 1580 | */ |
| 1581 | struct AVCodecInternal *internal; |
| 1582 | |
| 1583 | /** |
| 1584 | * Private data of the user, can be used to carry app specific stuff. |
| 1585 | * - encoding: Set by user. |
| 1586 | * - decoding: Set by user. |
| 1587 | */ |
| 1588 | void *opaque; |
| 1589 | |
| 1590 | /** |
| 1591 | * the average bitrate |
| 1592 | * - encoding: Set by user; unused for constant quantizer encoding. |
| 1593 | * - decoding: Set by user, may be overwritten by libavcodec |
| 1594 | * if this info is available in the stream |
| 1595 | */ |
| 1596 | int64_t bit_rate; |
| 1597 | |
| 1598 | /** |
| 1599 | * number of bits the bitstream is allowed to diverge from the reference. |
| 1600 | * the reference can be CBR (for CBR pass1) or VBR (for pass2) |
| 1601 | * - encoding: Set by user; unused for constant quantizer encoding. |
| 1602 | * - decoding: unused |
| 1603 | */ |
| 1604 | int bit_rate_tolerance; |
| 1605 | |
| 1606 | /** |
| 1607 | * Global quality for codecs which cannot change it per frame. |
| 1608 | * This should be proportional to MPEG-1/2/4 qscale. |
| 1609 | * - encoding: Set by user. |
| 1610 | * - decoding: unused |
| 1611 | */ |
| 1612 | int global_quality; |
| 1613 | |
| 1614 | /** |
| 1615 | * - encoding: Set by user. |
| 1616 | * - decoding: unused |
| 1617 | */ |
| 1618 | int compression_level; |
| 1619 | #define FF_COMPRESSION_DEFAULT-1 -1 |
| 1620 | |
| 1621 | /** |
| 1622 | * AV_CODEC_FLAG_*. |
| 1623 | * - encoding: Set by user. |
| 1624 | * - decoding: Set by user. |
| 1625 | */ |
| 1626 | int flags; |
| 1627 | |
| 1628 | /** |
| 1629 | * AV_CODEC_FLAG2_* |
| 1630 | * - encoding: Set by user. |
| 1631 | * - decoding: Set by user. |
| 1632 | */ |
| 1633 | int flags2; |
| 1634 | |
| 1635 | /** |
| 1636 | * some codecs need / can use extradata like Huffman tables. |
| 1637 | * mjpeg: Huffman tables |
| 1638 | * rv10: additional flags |
| 1639 | * mpeg4: global headers (they can be in the bitstream or here) |
| 1640 | * The allocated memory should be AV_INPUT_BUFFER_PADDING_SIZE bytes larger |
| 1641 | * than extradata_size to avoid problems if it is read with the bitstream reader. |
| 1642 | * The bytewise contents of extradata must not depend on the architecture or CPU endianness. |
| 1643 | * - encoding: Set/allocated/freed by libavcodec. |
| 1644 | * - decoding: Set/allocated/freed by user. |
| 1645 | */ |
| 1646 | uint8_t *extradata; |
| 1647 | int extradata_size; |
| 1648 | |
| 1649 | /** |
| 1650 | * This is the fundamental unit of time (in seconds) in terms |
| 1651 | * of which frame timestamps are represented. For fixed-fps content, |
| 1652 | * timebase should be 1/framerate and timestamp increments should be |
| 1653 | * identically 1. |
| 1654 | * This often, but not always is the inverse of the frame rate or field rate |
| 1655 | * for video. |
| 1656 | * - encoding: MUST be set by user. |
| 1657 | * - decoding: the use of this field for decoding is deprecated. |
| 1658 | * Use framerate instead. |
| 1659 | */ |
| 1660 | AVRational time_base; |
| 1661 | |
| 1662 | /** |
| 1663 | * For some codecs, the time base is closer to the field rate than the frame rate. |
| 1664 | * Most notably, H.264 and MPEG-2 specify time_base as half of frame duration |
| 1665 | * if no telecine is used ... |
| 1666 | * |
| 1667 | * Set to time_base ticks per frame. Default 1, e.g., H.264/MPEG-2 set it to 2. |
| 1668 | */ |
| 1669 | int ticks_per_frame; |
| 1670 | |
| 1671 | /** |
| 1672 | * Codec delay. |
| 1673 | * |
| 1674 | * Encoding: Number of frames delay there will be from the encoder input to |
| 1675 | * the decoder output. (we assume the decoder matches the spec) |
| 1676 | * Decoding: Number of frames delay in addition to what a standard decoder |
| 1677 | * as specified in the spec would produce. |
| 1678 | * |
| 1679 | * Video: |
| 1680 | * Number of frames the decoded output will be delayed relative to the |
| 1681 | * encoded input. |
| 1682 | * |
| 1683 | * Audio: |
| 1684 | * For encoding, this field is unused (see initial_padding). |
| 1685 | * |
| 1686 | * For decoding, this is the number of samples the decoder needs to |
| 1687 | * output before the decoder's output is valid. When seeking, you should |
| 1688 | * start decoding this many samples prior to your desired seek point. |
| 1689 | * |
| 1690 | * - encoding: Set by libavcodec. |
| 1691 | * - decoding: Set by libavcodec. |
| 1692 | */ |
| 1693 | int delay; |
| 1694 | |
| 1695 | |
| 1696 | /* video only */ |
| 1697 | /** |
| 1698 | * picture width / height. |
| 1699 | * |
| 1700 | * @note Those fields may not match the values of the last |
| 1701 | * AVFrame outputted by avcodec_decode_video2 due frame |
| 1702 | * reordering. |
| 1703 | * |
| 1704 | * - encoding: MUST be set by user. |
| 1705 | * - decoding: May be set by the user before opening the decoder if known e.g. |
| 1706 | * from the container. Some decoders will require the dimensions |
| 1707 | * to be set by the caller. During decoding, the decoder may |
| 1708 | * overwrite those values as required while parsing the data. |
| 1709 | */ |
| 1710 | int width, height; |
| 1711 | |
| 1712 | /** |
| 1713 | * Bitstream width / height, may be different from width/height e.g. when |
| 1714 | * the decoded frame is cropped before being output or lowres is enabled. |
| 1715 | * |
| 1716 | * @note Those field may not match the value of the last |
| 1717 | * AVFrame outputted by avcodec_decode_video2 due frame |
| 1718 | * reordering. |
| 1719 | * |
| 1720 | * - encoding: unused |
| 1721 | * - decoding: May be set by the user before opening the decoder if known |
| 1722 | * e.g. from the container. During decoding, the decoder may |
| 1723 | * overwrite those values as required while parsing the data. |
| 1724 | */ |
| 1725 | int coded_width, coded_height; |
| 1726 | |
| 1727 | #if FF_API_ASPECT_EXTENDED(57 < 58) |
| 1728 | #define FF_ASPECT_EXTENDED15 15 |
| 1729 | #endif |
| 1730 | |
| 1731 | /** |
| 1732 | * the number of pictures in a group of pictures, or 0 for intra_only |
| 1733 | * - encoding: Set by user. |
| 1734 | * - decoding: unused |
| 1735 | */ |
| 1736 | int gop_size; |
| 1737 | |
| 1738 | /** |
| 1739 | * Pixel format, see AV_PIX_FMT_xxx. |
| 1740 | * May be set by the demuxer if known from headers. |
| 1741 | * May be overridden by the decoder if it knows better. |
| 1742 | * |
| 1743 | * @note This field may not match the value of the last |
| 1744 | * AVFrame outputted by avcodec_decode_video2 due frame |
| 1745 | * reordering. |
| 1746 | * |
| 1747 | * - encoding: Set by user. |
| 1748 | * - decoding: Set by user if known, overridden by libavcodec while |
| 1749 | * parsing the data. |
| 1750 | */ |
| 1751 | enum AVPixelFormat pix_fmt; |
| 1752 | |
| 1753 | #if FF_API_MOTION_EST(57 < 59) |
| 1754 | /** |
| 1755 | * This option does nothing |
| 1756 | * @deprecated use codec private options instead |
| 1757 | */ |
| 1758 | attribute_deprecated__attribute__((deprecated)) int me_method; |
| 1759 | #endif |
| 1760 | |
| 1761 | /** |
| 1762 | * If non NULL, 'draw_horiz_band' is called by the libavcodec |
| 1763 | * decoder to draw a horizontal band. It improves cache usage. Not |
| 1764 | * all codecs can do that. You must check the codec capabilities |
| 1765 | * beforehand. |
| 1766 | * When multithreading is used, it may be called from multiple threads |
| 1767 | * at the same time; threads might draw different parts of the same AVFrame, |
| 1768 | * or multiple AVFrames, and there is no guarantee that slices will be drawn |
| 1769 | * in order. |
| 1770 | * The function is also used by hardware acceleration APIs. |
| 1771 | * It is called at least once during frame decoding to pass |
| 1772 | * the data needed for hardware render. |
| 1773 | * In that mode instead of pixel data, AVFrame points to |
| 1774 | * a structure specific to the acceleration API. The application |
| 1775 | * reads the structure and can change some fields to indicate progress |
| 1776 | * or mark state. |
| 1777 | * - encoding: unused |
| 1778 | * - decoding: Set by user. |
| 1779 | * @param height the height of the slice |
| 1780 | * @param y the y position of the slice |
| 1781 | * @param type 1->top field, 2->bottom field, 3->frame |
| 1782 | * @param offset offset into the AVFrame.data from which the slice should be read |
| 1783 | */ |
| 1784 | void (*draw_horiz_band)(struct AVCodecContext *s, |
| 1785 | const AVFrame *src, int offset[AV_NUM_DATA_POINTERS8], |
| 1786 | int y, int type, int height); |
| 1787 | |
| 1788 | /** |
| 1789 | * callback to negotiate the pixelFormat |
| 1790 | * @param fmt is the list of formats which are supported by the codec, |
| 1791 | * it is terminated by -1 as 0 is a valid format, the formats are ordered by quality. |
| 1792 | * The first is always the native one. |
| 1793 | * @note The callback may be called again immediately if initialization for |
| 1794 | * the selected (hardware-accelerated) pixel format failed. |
| 1795 | * @warning Behavior is undefined if the callback returns a value not |
| 1796 | * in the fmt list of formats. |
| 1797 | * @return the chosen format |
| 1798 | * - encoding: unused |
| 1799 | * - decoding: Set by user, if not set the native format will be chosen. |
| 1800 | */ |
| 1801 | enum AVPixelFormat (*get_format)(struct AVCodecContext *s, const enum AVPixelFormat * fmt); |
| 1802 | |
| 1803 | /** |
| 1804 | * maximum number of B-frames between non-B-frames |
| 1805 | * Note: The output will be delayed by max_b_frames+1 relative to the input. |
| 1806 | * - encoding: Set by user. |
| 1807 | * - decoding: unused |
| 1808 | */ |
| 1809 | int max_b_frames; |
| 1810 | |
| 1811 | /** |
| 1812 | * qscale factor between IP and B-frames |
| 1813 | * If > 0 then the last P-frame quantizer will be used (q= lastp_q*factor+offset). |
| 1814 | * If < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset). |
| 1815 | * - encoding: Set by user. |
| 1816 | * - decoding: unused |
| 1817 | */ |
| 1818 | float b_quant_factor; |
| 1819 | |
| 1820 | #if FF_API_RC_STRATEGY(57 < 59) |
| 1821 | /** @deprecated use codec private option instead */ |
| 1822 | attribute_deprecated__attribute__((deprecated)) int rc_strategy; |
| 1823 | #define FF_RC_STRATEGY_XVID1 1 |
| 1824 | #endif |
| 1825 | |
| 1826 | int b_frame_strategy; |
| 1827 | |
| 1828 | /** |
| 1829 | * qscale offset between IP and B-frames |
| 1830 | * - encoding: Set by user. |
| 1831 | * - decoding: unused |
| 1832 | */ |
| 1833 | float b_quant_offset; |
| 1834 | |
| 1835 | /** |
| 1836 | * Size of the frame reordering buffer in the decoder. |
| 1837 | * For MPEG-2 it is 1 IPB or 0 low delay IP. |
| 1838 | * - encoding: Set by libavcodec. |
| 1839 | * - decoding: Set by libavcodec. |
| 1840 | */ |
| 1841 | int has_b_frames; |
| 1842 | |
| 1843 | /** |
| 1844 | * 0-> h263 quant 1-> mpeg quant |
| 1845 | * - encoding: Set by user. |
| 1846 | * - decoding: unused |
| 1847 | */ |
| 1848 | int mpeg_quant; |
| 1849 | |
| 1850 | /** |
| 1851 | * qscale factor between P and I-frames |
| 1852 | * If > 0 then the last p frame quantizer will be used (q= lastp_q*factor+offset). |
| 1853 | * If < 0 then normal ratecontrol will be done (q= -normal_q*factor+offset). |
| 1854 | * - encoding: Set by user. |
| 1855 | * - decoding: unused |
| 1856 | */ |
| 1857 | float i_quant_factor; |
| 1858 | |
| 1859 | /** |
| 1860 | * qscale offset between P and I-frames |
| 1861 | * - encoding: Set by user. |
| 1862 | * - decoding: unused |
| 1863 | */ |
| 1864 | float i_quant_offset; |
| 1865 | |
| 1866 | /** |
| 1867 | * luminance masking (0-> disabled) |
| 1868 | * - encoding: Set by user. |
| 1869 | * - decoding: unused |
| 1870 | */ |
| 1871 | float lumi_masking; |
| 1872 | |
| 1873 | /** |
| 1874 | * temporary complexity masking (0-> disabled) |
| 1875 | * - encoding: Set by user. |
| 1876 | * - decoding: unused |
| 1877 | */ |
| 1878 | float temporal_cplx_masking; |
| 1879 | |
| 1880 | /** |
| 1881 | * spatial complexity masking (0-> disabled) |
| 1882 | * - encoding: Set by user. |
| 1883 | * - decoding: unused |
| 1884 | */ |
| 1885 | float spatial_cplx_masking; |
| 1886 | |
| 1887 | /** |
| 1888 | * p block masking (0-> disabled) |
| 1889 | * - encoding: Set by user. |
| 1890 | * - decoding: unused |
| 1891 | */ |
| 1892 | float p_masking; |
| 1893 | |
| 1894 | /** |
| 1895 | * darkness masking (0-> disabled) |
| 1896 | * - encoding: Set by user. |
| 1897 | * - decoding: unused |
| 1898 | */ |
| 1899 | float dark_masking; |
| 1900 | |
| 1901 | /** |
| 1902 | * slice count |
| 1903 | * - encoding: Set by libavcodec. |
| 1904 | * - decoding: Set by user (or 0). |
| 1905 | */ |
| 1906 | int slice_count; |
| 1907 | /** |
| 1908 | * prediction method (needed for huffyuv) |
| 1909 | * - encoding: Set by user. |
| 1910 | * - decoding: unused |
| 1911 | */ |
| 1912 | int prediction_method; |
| 1913 | #define FF_PRED_LEFT0 0 |
| 1914 | #define FF_PRED_PLANE1 1 |
| 1915 | #define FF_PRED_MEDIAN2 2 |
| 1916 | |
| 1917 | /** |
| 1918 | * slice offsets in the frame in bytes |
| 1919 | * - encoding: Set/allocated by libavcodec. |
| 1920 | * - decoding: Set/allocated by user (or NULL). |
| 1921 | */ |
| 1922 | int *slice_offset; |
| 1923 | |
| 1924 | /** |
| 1925 | * sample aspect ratio (0 if unknown) |
| 1926 | * That is the width of a pixel divided by the height of the pixel. |
| 1927 | * Numerator and denominator must be relatively prime and smaller than 256 for some video standards. |
| 1928 | * - encoding: Set by user. |
| 1929 | * - decoding: Set by libavcodec. |
| 1930 | */ |
| 1931 | AVRational sample_aspect_ratio; |
| 1932 | |
| 1933 | /** |
| 1934 | * motion estimation comparison function |
| 1935 | * - encoding: Set by user. |
| 1936 | * - decoding: unused |
| 1937 | */ |
| 1938 | int me_cmp; |
| 1939 | /** |
| 1940 | * subpixel motion estimation comparison function |
| 1941 | * - encoding: Set by user. |
| 1942 | * - decoding: unused |
| 1943 | */ |
| 1944 | int me_sub_cmp; |
| 1945 | /** |
| 1946 | * macroblock comparison function (not supported yet) |
| 1947 | * - encoding: Set by user. |
| 1948 | * - decoding: unused |
| 1949 | */ |
| 1950 | int mb_cmp; |
| 1951 | /** |
| 1952 | * interlaced DCT comparison function |
| 1953 | * - encoding: Set by user. |
| 1954 | * - decoding: unused |
| 1955 | */ |
| 1956 | int ildct_cmp; |
| 1957 | #define FF_CMP_SAD0 0 |
| 1958 | #define FF_CMP_SSE1 1 |
| 1959 | #define FF_CMP_SATD2 2 |
| 1960 | #define FF_CMP_DCT3 3 |
| 1961 | #define FF_CMP_PSNR4 4 |
| 1962 | #define FF_CMP_BIT5 5 |
| 1963 | #define FF_CMP_RD6 6 |
| 1964 | #define FF_CMP_ZERO7 7 |
| 1965 | #define FF_CMP_VSAD8 8 |
| 1966 | #define FF_CMP_VSSE9 9 |
| 1967 | #define FF_CMP_NSSE10 10 |
| 1968 | #define FF_CMP_W5311 11 |
| 1969 | #define FF_CMP_W9712 12 |
| 1970 | #define FF_CMP_DCTMAX13 13 |
| 1971 | #define FF_CMP_DCT26414 14 |
| 1972 | #define FF_CMP_CHROMA256 256 |
| 1973 | |
| 1974 | /** |
| 1975 | * ME diamond size & shape |
| 1976 | * - encoding: Set by user. |
| 1977 | * - decoding: unused |
| 1978 | */ |
| 1979 | int dia_size; |
| 1980 | |
| 1981 | /** |
| 1982 | * amount of previous MV predictors (2a+1 x 2a+1 square) |
| 1983 | * - encoding: Set by user. |
| 1984 | * - decoding: unused |
| 1985 | */ |
| 1986 | int last_predictor_count; |
| 1987 | |
| 1988 | /** |
| 1989 | * prepass for motion estimation |
| 1990 | * - encoding: Set by user. |
| 1991 | * - decoding: unused |
| 1992 | */ |
| 1993 | int pre_me; |
| 1994 | |
| 1995 | /** |
| 1996 | * motion estimation prepass comparison function |
| 1997 | * - encoding: Set by user. |
| 1998 | * - decoding: unused |
| 1999 | */ |
| 2000 | int me_pre_cmp; |
| 2001 | |
| 2002 | /** |
| 2003 | * ME prepass diamond size & shape |
| 2004 | * - encoding: Set by user. |
| 2005 | * - decoding: unused |
| 2006 | */ |
| 2007 | int pre_dia_size; |
| 2008 | |
| 2009 | /** |
| 2010 | * subpel ME quality |
| 2011 | * - encoding: Set by user. |
| 2012 | * - decoding: unused |
| 2013 | */ |
| 2014 | int me_subpel_quality; |
| 2015 | |
| 2016 | #if FF_API_AFD(57 < 58) |
| 2017 | /** |
| 2018 | * DTG active format information (additional aspect ratio |
| 2019 | * information only used in DVB MPEG-2 transport streams) |
| 2020 | * 0 if not set. |
| 2021 | * |
| 2022 | * - encoding: unused |
| 2023 | * - decoding: Set by decoder. |
| 2024 | * @deprecated Deprecated in favor of AVSideData |
| 2025 | */ |
| 2026 | attribute_deprecated__attribute__((deprecated)) int dtg_active_format; |
| 2027 | #define FF_DTG_AFD_SAME8 8 |
| 2028 | #define FF_DTG_AFD_4_39 9 |
| 2029 | #define FF_DTG_AFD_16_910 10 |
| 2030 | #define FF_DTG_AFD_14_911 11 |
| 2031 | #define FF_DTG_AFD_4_3_SP_14_913 13 |
| 2032 | #define FF_DTG_AFD_16_9_SP_14_914 14 |
| 2033 | #define FF_DTG_AFD_SP_4_315 15 |
| 2034 | #endif /* FF_API_AFD */ |
| 2035 | |
| 2036 | /** |
| 2037 | * maximum motion estimation search range in subpel units |
| 2038 | * If 0 then no limit. |
| 2039 | * |
| 2040 | * - encoding: Set by user. |
| 2041 | * - decoding: unused |
| 2042 | */ |
| 2043 | int me_range; |
| 2044 | |
| 2045 | #if FF_API_QUANT_BIAS(57 < 59) |
| 2046 | /** |
| 2047 | * @deprecated use encoder private option instead |
| 2048 | */ |
| 2049 | attribute_deprecated__attribute__((deprecated)) int intra_quant_bias; |
| 2050 | #define FF_DEFAULT_QUANT_BIAS999999 999999 |
| 2051 | |
| 2052 | /** |
| 2053 | * @deprecated use encoder private option instead |
| 2054 | */ |
| 2055 | attribute_deprecated__attribute__((deprecated)) int inter_quant_bias; |
| 2056 | #endif |
| 2057 | |
| 2058 | /** |
| 2059 | * slice flags |
| 2060 | * - encoding: unused |
| 2061 | * - decoding: Set by user. |
| 2062 | */ |
| 2063 | int slice_flags; |
| 2064 | #define SLICE_FLAG_CODED_ORDER0x0001 0x0001 ///< draw_horiz_band() is called in coded order instead of display |
| 2065 | #define SLICE_FLAG_ALLOW_FIELD0x0002 0x0002 ///< allow draw_horiz_band() with field slices (MPEG2 field pics) |
| 2066 | #define SLICE_FLAG_ALLOW_PLANE0x0004 0x0004 ///< allow draw_horiz_band() with 1 component at a time (SVQ1) |
| 2067 | |
| 2068 | #if FF_API_XVMC(55 < 56) |
| 2069 | /** |
| 2070 | * XVideo Motion Acceleration |
| 2071 | * - encoding: forbidden |
| 2072 | * - decoding: set by decoder |
| 2073 | * @deprecated XvMC doesn't need it anymore. |
| 2074 | */ |
| 2075 | attribute_deprecated__attribute__((deprecated)) int xvmc_acceleration; |
| 2076 | #endif /* FF_API_XVMC */ |
| 2077 | |
| 2078 | /** |
| 2079 | * macroblock decision mode |
| 2080 | * - encoding: Set by user. |
| 2081 | * - decoding: unused |
| 2082 | */ |
| 2083 | int mb_decision; |
| 2084 | #define FF_MB_DECISION_SIMPLE0 0 ///< uses mb_cmp |
| 2085 | #define FF_MB_DECISION_BITS1 1 ///< chooses the one which needs the fewest bits |
| 2086 | #define FF_MB_DECISION_RD2 2 ///< rate distortion |
| 2087 | |
| 2088 | /** |
| 2089 | * custom intra quantization matrix |
| 2090 | * - encoding: Set by user, can be NULL. |
| 2091 | * - decoding: Set by libavcodec. |
| 2092 | */ |
| 2093 | uint16_t *intra_matrix; |
| 2094 | |
| 2095 | /** |
| 2096 | * custom inter quantization matrix |
| 2097 | * - encoding: Set by user, can be NULL. |
| 2098 | * - decoding: Set by libavcodec. |
| 2099 | */ |
| 2100 | uint16_t *inter_matrix; |
| 2101 | |
| 2102 | /** |
| 2103 | * scene change detection threshold |
| 2104 | * 0 is default, larger means fewer detected scene changes. |
| 2105 | * - encoding: Set by user. |
| 2106 | * - decoding: unused |
| 2107 | */ |
| 2108 | int scenechange_threshold; |
| 2109 | |
| 2110 | /** |
| 2111 | * noise reduction strength |
| 2112 | * - encoding: Set by user. |
| 2113 | * - decoding: unused |
| 2114 | */ |
| 2115 | int noise_reduction; |
| 2116 | |
| 2117 | #if FF_API_MPV_OPT(57 < 59) |
| 2118 | /** |
| 2119 | * @deprecated this field is unused |
| 2120 | */ |
| 2121 | attribute_deprecated__attribute__((deprecated)) |
| 2122 | int me_threshold; |
| 2123 | |
| 2124 | /** |
| 2125 | * @deprecated this field is unused |
| 2126 | */ |
| 2127 | attribute_deprecated__attribute__((deprecated)) |
| 2128 | int mb_threshold; |
| 2129 | #endif |
| 2130 | |
| 2131 | /** |
| 2132 | * precision of the intra DC coefficient - 8 |
| 2133 | * - encoding: Set by user. |
| 2134 | * - decoding: Set by libavcodec |
| 2135 | */ |
| 2136 | int intra_dc_precision; |
| 2137 | |
| 2138 | /** |
| 2139 | * Number of macroblock rows at the top which are skipped. |
| 2140 | * - encoding: unused |
| 2141 | * - decoding: Set by user. |
| 2142 | */ |
| 2143 | int skip_top; |
| 2144 | |
| 2145 | /** |
| 2146 | * Number of macroblock rows at the bottom which are skipped. |
| 2147 | * - encoding: unused |
| 2148 | * - decoding: Set by user. |
| 2149 | */ |
| 2150 | int skip_bottom; |
| 2151 | |
| 2152 | #if FF_API_MPV_OPT(57 < 59) |
| 2153 | /** |
| 2154 | * @deprecated use encoder private options instead |
| 2155 | */ |
| 2156 | attribute_deprecated__attribute__((deprecated)) |
| 2157 | float border_masking; |
| 2158 | #endif |
| 2159 | |
| 2160 | /** |
| 2161 | * minimum MB lagrange multipler |
| 2162 | * - encoding: Set by user. |
| 2163 | * - decoding: unused |
| 2164 | */ |
| 2165 | int mb_lmin; |
| 2166 | |
| 2167 | /** |
| 2168 | * maximum MB lagrange multipler |
| 2169 | * - encoding: Set by user. |
| 2170 | * - decoding: unused |
| 2171 | */ |
| 2172 | int mb_lmax; |
| 2173 | |
| 2174 | /** |
| 2175 | * |
| 2176 | * - encoding: Set by user. |
| 2177 | * - decoding: unused |
| 2178 | */ |
| 2179 | int me_penalty_compensation; |
| 2180 | |
| 2181 | /** |
| 2182 | * |
| 2183 | * - encoding: Set by user. |
| 2184 | * - decoding: unused |
| 2185 | */ |
| 2186 | int bidir_refine; |
| 2187 | |
| 2188 | /** |
| 2189 | * |
| 2190 | * - encoding: Set by user. |
| 2191 | * - decoding: unused |
| 2192 | */ |
| 2193 | int brd_scale; |
| 2194 | |
| 2195 | /** |
| 2196 | * minimum GOP size |
| 2197 | * - encoding: Set by user. |
| 2198 | * - decoding: unused |
| 2199 | */ |
| 2200 | int keyint_min; |
| 2201 | |
| 2202 | /** |
| 2203 | * number of reference frames |
| 2204 | * - encoding: Set by user. |
| 2205 | * - decoding: Set by lavc. |
| 2206 | */ |
| 2207 | int refs; |
| 2208 | |
| 2209 | /** |
| 2210 | * chroma qp offset from luma |
| 2211 | * - encoding: Set by user. |
| 2212 | * - decoding: unused |
| 2213 | */ |
| 2214 | int chromaoffset; |
| 2215 | |
| 2216 | #if FF_API_UNUSED_MEMBERS(57 < 58) |
| 2217 | /** |
| 2218 | * Multiplied by qscale for each frame and added to scene_change_score. |
| 2219 | * - encoding: Set by user. |
| 2220 | * - decoding: unused |
| 2221 | */ |
| 2222 | attribute_deprecated__attribute__((deprecated)) int scenechange_factor; |
| 2223 | #endif |
| 2224 | |
| 2225 | /** |
| 2226 | * |
| 2227 | * Note: Value depends upon the compare function used for fullpel ME. |
| 2228 | * - encoding: Set by user. |
| 2229 | * - decoding: unused |
| 2230 | */ |
| 2231 | int mv0_threshold; |
| 2232 | |
| 2233 | /** |
| 2234 | * Adjust sensitivity of b_frame_strategy 1. |
| 2235 | * - encoding: Set by user. |
| 2236 | * - decoding: unused |
| 2237 | */ |
| 2238 | int b_sensitivity; |
| 2239 | |
| 2240 | /** |
| 2241 | * Chromaticity coordinates of the source primaries. |
| 2242 | * - encoding: Set by user |
| 2243 | * - decoding: Set by libavcodec |
| 2244 | */ |
| 2245 | enum AVColorPrimaries color_primaries; |
| 2246 | |
| 2247 | /** |
| 2248 | * Color Transfer Characteristic. |
| 2249 | * - encoding: Set by user |
| 2250 | * - decoding: Set by libavcodec |
| 2251 | */ |
| 2252 | enum AVColorTransferCharacteristic color_trc; |
| 2253 | |
| 2254 | /** |
| 2255 | * YUV colorspace type. |
| 2256 | * - encoding: Set by user |
| 2257 | * - decoding: Set by libavcodec |
| 2258 | */ |
| 2259 | enum AVColorSpace colorspace; |
| 2260 | |
| 2261 | /** |
| 2262 | * MPEG vs JPEG YUV range. |
| 2263 | * - encoding: Set by user |
| 2264 | * - decoding: Set by libavcodec |
| 2265 | */ |
| 2266 | enum AVColorRange color_range; |
| 2267 | |
| 2268 | /** |
| 2269 | * This defines the location of chroma samples. |
| 2270 | * - encoding: Set by user |
| 2271 | * - decoding: Set by libavcodec |
| 2272 | */ |
| 2273 | enum AVChromaLocation chroma_sample_location; |
| 2274 | |
| 2275 | /** |
| 2276 | * Number of slices. |
| 2277 | * Indicates number of picture subdivisions. Used for parallelized |
| 2278 | * decoding. |
| 2279 | * - encoding: Set by user |
| 2280 | * - decoding: unused |
| 2281 | */ |
| 2282 | int slices; |
| 2283 | |
| 2284 | /** Field order |
| 2285 | * - encoding: set by libavcodec |
| 2286 | * - decoding: Set by user. |
| 2287 | */ |
| 2288 | enum AVFieldOrder field_order; |
| 2289 | |
| 2290 | /* audio only */ |
| 2291 | int sample_rate; ///< samples per second |
| 2292 | int channels; ///< number of audio channels |
| 2293 | |
| 2294 | /** |
| 2295 | * audio sample format |
| 2296 | * - encoding: Set by user. |
| 2297 | * - decoding: Set by libavcodec. |
| 2298 | */ |
| 2299 | enum AVSampleFormat sample_fmt; ///< sample format |
| 2300 | |
| 2301 | /* The following data should not be initialized. */ |
| 2302 | /** |
| 2303 | * Number of samples per channel in an audio frame. |
| 2304 | * |
| 2305 | * - encoding: set by libavcodec in avcodec_open2(). Each submitted frame |
| 2306 | * except the last must contain exactly frame_size samples per channel. |
| 2307 | * May be 0 when the codec has AV_CODEC_CAP_VARIABLE_FRAME_SIZE set, then the |
| 2308 | * frame size is not restricted. |
| 2309 | * - decoding: may be set by some decoders to indicate constant frame size |
| 2310 | */ |
| 2311 | int frame_size; |
| 2312 | |
| 2313 | /** |
| 2314 | * Frame counter, set by libavcodec. |
| 2315 | * |
| 2316 | * - decoding: total number of frames returned from the decoder so far. |
| 2317 | * - encoding: total number of frames passed to the encoder so far. |
| 2318 | * |
| 2319 | * @note the counter is not incremented if encoding/decoding resulted in |
| 2320 | * an error. |
| 2321 | */ |
| 2322 | int frame_number; |
| 2323 | |
| 2324 | /** |
| 2325 | * number of bytes per packet if constant and known or 0 |
| 2326 | * Used by some WAV based audio codecs. |
| 2327 | */ |
| 2328 | int block_align; |
| 2329 | |
| 2330 | /** |
| 2331 | * Audio cutoff bandwidth (0 means "automatic") |
| 2332 | * - encoding: Set by user. |
| 2333 | * - decoding: unused |
| 2334 | */ |
| 2335 | int cutoff; |
| 2336 | |
| 2337 | /** |
| 2338 | * Audio channel layout. |
| 2339 | * - encoding: set by user. |
| 2340 | * - decoding: set by user, may be overwritten by libavcodec. |
| 2341 | */ |
| 2342 | uint64_t channel_layout; |
| 2343 | |
| 2344 | /** |
| 2345 | * Request decoder to use this channel layout if it can (0 for default) |
| 2346 | * - encoding: unused |
| 2347 | * - decoding: Set by user. |
| 2348 | */ |
| 2349 | uint64_t request_channel_layout; |
| 2350 | |
| 2351 | /** |
| 2352 | * Type of service that the audio stream conveys. |
| 2353 | * - encoding: Set by user. |
| 2354 | * - decoding: Set by libavcodec. |
| 2355 | */ |
| 2356 | enum AVAudioServiceType audio_service_type; |
| 2357 | |
| 2358 | /** |
| 2359 | * desired sample format |
| 2360 | * - encoding: Not used. |
| 2361 | * - decoding: Set by user. |
| 2362 | * Decoder will decode to this format if it can. |
| 2363 | */ |
| 2364 | enum AVSampleFormat request_sample_fmt; |
| 2365 | |
| 2366 | /** |
| 2367 | * This callback is called at the beginning of each frame to get data |
| 2368 | * buffer(s) for it. There may be one contiguous buffer for all the data or |
| 2369 | * there may be a buffer per each data plane or anything in between. What |
| 2370 | * this means is, you may set however many entries in buf[] you feel necessary. |
| 2371 | * Each buffer must be reference-counted using the AVBuffer API (see description |
| 2372 | * of buf[] below). |
| 2373 | * |
| 2374 | * The following fields will be set in the frame before this callback is |
| 2375 | * called: |
| 2376 | * - format |
| 2377 | * - width, height (video only) |
| 2378 | * - sample_rate, channel_layout, nb_samples (audio only) |
| 2379 | * Their values may differ from the corresponding values in |
| 2380 | * AVCodecContext. This callback must use the frame values, not the codec |
| 2381 | * context values, to calculate the required buffer size. |
| 2382 | * |
| 2383 | * This callback must fill the following fields in the frame: |
| 2384 | * - data[] |
| 2385 | * - linesize[] |
| 2386 | * - extended_data: |
| 2387 | * * if the data is planar audio with more than 8 channels, then this |
| 2388 | * callback must allocate and fill extended_data to contain all pointers |
| 2389 | * to all data planes. data[] must hold as many pointers as it can. |
| 2390 | * extended_data must be allocated with av_malloc() and will be freed in |
| 2391 | * av_frame_unref(). |
| 2392 | * * otherwise exended_data must point to data |
| 2393 | * - buf[] must contain one or more pointers to AVBufferRef structures. Each of |
| 2394 | * the frame's data and extended_data pointers must be contained in these. That |
| 2395 | * is, one AVBufferRef for each allocated chunk of memory, not necessarily one |
| 2396 | * AVBufferRef per data[] entry. See: av_buffer_create(), av_buffer_alloc(), |
| 2397 | * and av_buffer_ref(). |
| 2398 | * - extended_buf and nb_extended_buf must be allocated with av_malloc() by |
| 2399 | * this callback and filled with the extra buffers if there are more |
| 2400 | * buffers than buf[] can hold. extended_buf will be freed in |
| 2401 | * av_frame_unref(). |
| 2402 | * |
| 2403 | * If AV_CODEC_CAP_DR1 is not set then get_buffer2() must call |
| 2404 | * avcodec_default_get_buffer2() instead of providing buffers allocated by |
| 2405 | * some other means. |
| 2406 | * |
| 2407 | * Each data plane must be aligned to the maximum required by the target |
| 2408 | * CPU. |
| 2409 | * |
| 2410 | * @see avcodec_default_get_buffer2() |
| 2411 | * |
| 2412 | * Video: |
| 2413 | * |
| 2414 | * If AV_GET_BUFFER_FLAG_REF is set in flags then the frame may be reused |
| 2415 | * (read and/or written to if it is writable) later by libavcodec. |
| 2416 | * |
| 2417 | * avcodec_align_dimensions2() should be used to find the required width and |
| 2418 | * height, as they normally need to be rounded up to the next multiple of 16. |
| 2419 | * |
| 2420 | * Some decoders do not support linesizes changing between frames. |
| 2421 | * |
| 2422 | * If frame multithreading is used and thread_safe_callbacks is set, |
| 2423 | * this callback may be called from a different thread, but not from more |
| 2424 | * than one at once. Does not need to be reentrant. |
| 2425 | * |
| 2426 | * @see avcodec_align_dimensions2() |
| 2427 | * |
| 2428 | * Audio: |
| 2429 | * |
| 2430 | * Decoders request a buffer of a particular size by setting |
| 2431 | * AVFrame.nb_samples prior to calling get_buffer2(). The decoder may, |
| 2432 | * however, utilize only part of the buffer by setting AVFrame.nb_samples |
| 2433 | * to a smaller value in the output frame. |
| 2434 | * |
| 2435 | * As a convenience, av_samples_get_buffer_size() and |
| 2436 | * av_samples_fill_arrays() in libavutil may be used by custom get_buffer2() |
| 2437 | * functions to find the required data size and to fill data pointers and |
| 2438 | * linesize. In AVFrame.linesize, only linesize[0] may be set for audio |
| 2439 | * since all planes must be the same size. |
| 2440 | * |
| 2441 | * @see av_samples_get_buffer_size(), av_samples_fill_arrays() |
| 2442 | * |
| 2443 | * - encoding: unused |
| 2444 | * - decoding: Set by libavcodec, user can override. |
| 2445 | */ |
| 2446 | int (*get_buffer2)(struct AVCodecContext *s, AVFrame *frame, int flags); |
| 2447 | |
| 2448 | /** |
| 2449 | * If non-zero, the decoded audio and video frames returned from |
| 2450 | * avcodec_decode_video2() and avcodec_decode_audio4() are reference-counted |
| 2451 | * and are valid indefinitely. The caller must free them with |
| 2452 | * av_frame_unref() when they are not needed anymore. |
| 2453 | * Otherwise, the decoded frames must not be freed by the caller and are |
| 2454 | * only valid until the next decode call. |
| 2455 | * |
| 2456 | * - encoding: unused |
| 2457 | * - decoding: set by the caller before avcodec_open2(). |
| 2458 | */ |
| 2459 | int refcounted_frames; |
| 2460 | |
| 2461 | /* - encoding parameters */ |
| 2462 | float qcompress; ///< amount of qscale change between easy & hard scenes (0.0-1.0) |
| 2463 | float qblur; ///< amount of qscale smoothing over time (0.0-1.0) |
| 2464 | |
| 2465 | /** |
| 2466 | * minimum quantizer |
| 2467 | * - encoding: Set by user. |
| 2468 | * - decoding: unused |
| 2469 | */ |
| 2470 | int qmin; |
| 2471 | |
| 2472 | /** |
| 2473 | * maximum quantizer |
| 2474 | * - encoding: Set by user. |
| 2475 | * - decoding: unused |
| 2476 | */ |
| 2477 | int qmax; |
| 2478 | |
| 2479 | /** |
| 2480 | * maximum quantizer difference between frames |
| 2481 | * - encoding: Set by user. |
| 2482 | * - decoding: unused |
| 2483 | */ |
| 2484 | int max_qdiff; |
| 2485 | |
| 2486 | #if FF_API_MPV_OPT(57 < 59) |
| 2487 | /** |
| 2488 | * @deprecated use encoder private options instead |
| 2489 | */ |
| 2490 | attribute_deprecated__attribute__((deprecated)) |
| 2491 | float rc_qsquish; |
| 2492 | |
| 2493 | attribute_deprecated__attribute__((deprecated)) |
| 2494 | float rc_qmod_amp; |
| 2495 | attribute_deprecated__attribute__((deprecated)) |
| 2496 | int rc_qmod_freq; |
| 2497 | #endif |
| 2498 | |
| 2499 | /** |
| 2500 | * decoder bitstream buffer size |
| 2501 | * - encoding: Set by user. |
| 2502 | * - decoding: unused |
| 2503 | */ |
| 2504 | int rc_buffer_size; |
| 2505 | |
| 2506 | /** |
| 2507 | * ratecontrol override, see RcOverride |
| 2508 | * - encoding: Allocated/set/freed by user. |
| 2509 | * - decoding: unused |
| 2510 | */ |
| 2511 | int rc_override_count; |
| 2512 | RcOverride *rc_override; |
| 2513 | |
| 2514 | #if FF_API_MPV_OPT(57 < 59) |
| 2515 | /** |
| 2516 | * @deprecated use encoder private options instead |
| 2517 | */ |
| 2518 | attribute_deprecated__attribute__((deprecated)) |
| 2519 | const char *rc_eq; |
| 2520 | #endif |
| 2521 | |
| 2522 | /** |
| 2523 | * maximum bitrate |
| 2524 | * - encoding: Set by user. |
| 2525 | * - decoding: Set by user, may be overwritten by libavcodec. |
| 2526 | */ |
| 2527 | int64_t rc_max_rate; |
| 2528 | |
| 2529 | /** |
| 2530 | * minimum bitrate |
| 2531 | * - encoding: Set by user. |
| 2532 | * - decoding: unused |
| 2533 | */ |
| 2534 | int64_t rc_min_rate; |
| 2535 | |
| 2536 | #if FF_API_MPV_OPT(57 < 59) |
| 2537 | /** |
| 2538 | * @deprecated use encoder private options instead |
| 2539 | */ |
| 2540 | attribute_deprecated__attribute__((deprecated)) |
| 2541 | float rc_buffer_aggressivity; |
| 2542 | |
| 2543 | attribute_deprecated__attribute__((deprecated)) |
| 2544 | float rc_initial_cplx; |
| 2545 | #endif |
| 2546 | |
| 2547 | /** |
| 2548 | * Ratecontrol attempt to use, at maximum, <value> of what can be used without an underflow. |
| 2549 | * - encoding: Set by user. |
| 2550 | * - decoding: unused. |
| 2551 | */ |
| 2552 | float rc_max_available_vbv_use; |
| 2553 | |
| 2554 | /** |
| 2555 | * Ratecontrol attempt to use, at least, <value> times the amount needed to prevent a vbv overflow. |
| 2556 | * - encoding: Set by user. |
| 2557 | * - decoding: unused. |
| 2558 | */ |
| 2559 | float rc_min_vbv_overflow_use; |
| 2560 | |
| 2561 | /** |
| 2562 | * Number of bits which should be loaded into the rc buffer before decoding starts. |
| 2563 | * - encoding: Set by user. |
| 2564 | * - decoding: unused |
| 2565 | */ |
| 2566 | int rc_initial_buffer_occupancy; |
| 2567 | |
| 2568 | #if FF_API_CODER_TYPE(57 < 59) |
| 2569 | #define FF_CODER_TYPE_VLC0 0 |
| 2570 | #define FF_CODER_TYPE_AC1 1 |
| 2571 | #define FF_CODER_TYPE_RAW2 2 |
| 2572 | #define FF_CODER_TYPE_RLE3 3 |
| 2573 | #if FF_API_UNUSED_MEMBERS(57 < 58) |
| 2574 | #define FF_CODER_TYPE_DEFLATE4 4 |
| 2575 | #endif /* FF_API_UNUSED_MEMBERS */ |
| 2576 | /** |
| 2577 | * @deprecated use encoder private options instead |
| 2578 | */ |
| 2579 | attribute_deprecated__attribute__((deprecated)) |
| 2580 | int coder_type; |
| 2581 | #endif /* FF_API_CODER_TYPE */ |
| 2582 | |
| 2583 | /** |
| 2584 | * context model |
| 2585 | * - encoding: Set by user. |
| 2586 | * - decoding: unused |
| 2587 | */ |
| 2588 | int context_model; |
| 2589 | |
| 2590 | #if FF_API_MPV_OPT(57 < 59) |
| 2591 | /** |
| 2592 | * @deprecated use encoder private options instead |
| 2593 | */ |
| 2594 | attribute_deprecated__attribute__((deprecated)) |
| 2595 | int lmin; |
| 2596 | |
| 2597 | /** |
| 2598 | * @deprecated use encoder private options instead |
| 2599 | */ |
| 2600 | attribute_deprecated__attribute__((deprecated)) |
| 2601 | int lmax; |
| 2602 | #endif |
| 2603 | |
| 2604 | /** |
| 2605 | * frame skip threshold |
| 2606 | * - encoding: Set by user. |
| 2607 | * - decoding: unused |
| 2608 | */ |
| 2609 | int frame_skip_threshold; |
| 2610 | |
| 2611 | /** |
| 2612 | * frame skip factor |
| 2613 | * - encoding: Set by user. |
| 2614 | * - decoding: unused |
| 2615 | */ |
| 2616 | int frame_skip_factor; |
| 2617 | |
| 2618 | /** |
| 2619 | * frame skip exponent |
| 2620 | * - encoding: Set by user. |
| 2621 | * - decoding: unused |
| 2622 | */ |
| 2623 | int frame_skip_exp; |
| 2624 | |
| 2625 | /** |
| 2626 | * frame skip comparison function |
| 2627 | * - encoding: Set by user. |
| 2628 | * - decoding: unused |
| 2629 | */ |
| 2630 | int frame_skip_cmp; |
| 2631 | |
| 2632 | /** |
| 2633 | * trellis RD quantization |
| 2634 | * - encoding: Set by user. |
| 2635 | * - decoding: unused |
| 2636 | */ |
| 2637 | int trellis; |
| 2638 | |
| 2639 | /** |
| 2640 | * - encoding: Set by user. |
| 2641 | * - decoding: unused |
| 2642 | */ |
| 2643 | int min_prediction_order; |
| 2644 | |
| 2645 | /** |
| 2646 | * - encoding: Set by user. |
| 2647 | * - decoding: unused |
| 2648 | */ |
| 2649 | int max_prediction_order; |
| 2650 | |
| 2651 | /** |
| 2652 | * GOP timecode frame start number |
| 2653 | * - encoding: Set by user, in non drop frame format |
| 2654 | * - decoding: Set by libavcodec (timecode in the 25 bits format, -1 if unset) |
| 2655 | */ |
| 2656 | int64_t timecode_frame_start; |
| 2657 | |
| 2658 | #if FF_API_RTP_CALLBACK(57 < 59) |
| 2659 | /** |
| 2660 | * @deprecated unused |
| 2661 | */ |
| 2662 | /* The RTP callback: This function is called */ |
| 2663 | /* every time the encoder has a packet to send. */ |
| 2664 | /* It depends on the encoder if the data starts */ |
| 2665 | /* with a Start Code (it should). H.263 does. */ |
| 2666 | /* mb_nb contains the number of macroblocks */ |
| 2667 | /* encoded in the RTP payload. */ |
| 2668 | attribute_deprecated__attribute__((deprecated)) |
| 2669 | void (*rtp_callback)(struct AVCodecContext *avctx, void *data, int size, int mb_nb); |
| 2670 | #endif |
| 2671 | |
| 2672 | int rtp_payload_size; /* The size of the RTP payload: the coder will */ |
| 2673 | /* do its best to deliver a chunk with size */ |
| 2674 | /* below rtp_payload_size, the chunk will start */ |
| 2675 | /* with a start code on some codecs like H.263. */ |
| 2676 | /* This doesn't take account of any particular */ |
| 2677 | /* headers inside the transmitted RTP payload. */ |
| 2678 | |
| 2679 | #if FF_API_STAT_BITS(57 < 59) |
| 2680 | /* statistics, used for 2-pass encoding */ |
| 2681 | attribute_deprecated__attribute__((deprecated)) |
| 2682 | int mv_bits; |
| 2683 | attribute_deprecated__attribute__((deprecated)) |
| 2684 | int header_bits; |
| 2685 | attribute_deprecated__attribute__((deprecated)) |
| 2686 | int i_tex_bits; |
| 2687 | attribute_deprecated__attribute__((deprecated)) |
| 2688 | int p_tex_bits; |
| 2689 | attribute_deprecated__attribute__((deprecated)) |
| 2690 | int i_count; |
| 2691 | attribute_deprecated__attribute__((deprecated)) |
| 2692 | int p_count; |
| 2693 | attribute_deprecated__attribute__((deprecated)) |
| 2694 | int skip_count; |
| 2695 | attribute_deprecated__attribute__((deprecated)) |
| 2696 | int misc_bits; |
| 2697 | |
| 2698 | /** @deprecated this field is unused */ |
| 2699 | attribute_deprecated__attribute__((deprecated)) |
| 2700 | int frame_bits; |
| 2701 | #endif |
| 2702 | |
| 2703 | /** |
| 2704 | * pass1 encoding statistics output buffer |
| 2705 | * - encoding: Set by libavcodec. |
| 2706 | * - decoding: unused |
| 2707 | */ |
| 2708 | char *stats_out; |
| 2709 | |
| 2710 | /** |
| 2711 | * pass2 encoding statistics input buffer |
| 2712 | * Concatenated stuff from stats_out of pass1 should be placed here. |
| 2713 | * - encoding: Allocated/set/freed by user. |
| 2714 | * - decoding: unused |
| 2715 | */ |
| 2716 | char *stats_in; |
| 2717 | |
| 2718 | /** |
| 2719 | * Work around bugs in encoders which sometimes cannot be detected automatically. |
| 2720 | * - encoding: Set by user |
| 2721 | * - decoding: Set by user |
| 2722 | */ |
| 2723 | int workaround_bugs; |
| 2724 | #define FF_BUG_AUTODETECT1 1 ///< autodetection |
| 2725 | #if FF_API_OLD_MSMPEG4(57 < 58) |
| 2726 | #define FF_BUG_OLD_MSMPEG42 2 |
| 2727 | #endif |
| 2728 | #define FF_BUG_XVID_ILACE4 4 |
| 2729 | #define FF_BUG_UMP48 8 |
| 2730 | #define FF_BUG_NO_PADDING16 16 |
| 2731 | #define FF_BUG_AMV32 32 |
| 2732 | #if FF_API_AC_VLC(57 < 58) |
| 2733 | #define FF_BUG_AC_VLC0 0 ///< Will be removed, libavcodec can now handle these non-compliant files by default. |
| 2734 | #endif |
| 2735 | #define FF_BUG_QPEL_CHROMA64 64 |
| 2736 | #define FF_BUG_STD_QPEL128 128 |
| 2737 | #define FF_BUG_QPEL_CHROMA2256 256 |
| 2738 | #define FF_BUG_DIRECT_BLOCKSIZE512 512 |
| 2739 | #define FF_BUG_EDGE1024 1024 |
| 2740 | #define FF_BUG_HPEL_CHROMA2048 2048 |
| 2741 | #define FF_BUG_DC_CLIP4096 4096 |
| 2742 | #define FF_BUG_MS8192 8192 ///< Work around various bugs in Microsoft's broken decoders. |
| 2743 | #define FF_BUG_TRUNCATED16384 16384 |
| 2744 | |
| 2745 | /** |
| 2746 | * strictly follow the standard (MPEG4, ...). |
| 2747 | * - encoding: Set by user. |
| 2748 | * - decoding: Set by user. |
| 2749 | * Setting this to STRICT or higher means the encoder and decoder will |
| 2750 | * generally do stupid things, whereas setting it to unofficial or lower |
| 2751 | * will mean the encoder might produce output that is not supported by all |
| 2752 | * spec-compliant decoders. Decoders don't differentiate between normal, |
| 2753 | * unofficial and experimental (that is, they always try to decode things |
| 2754 | * when they can) unless they are explicitly asked to behave stupidly |
| 2755 | * (=strictly conform to the specs) |
| 2756 | */ |
| 2757 | int strict_std_compliance; |
| 2758 | #define FF_COMPLIANCE_VERY_STRICT2 2 ///< Strictly conform to an older more strict version of the spec or reference software. |
| 2759 | #define FF_COMPLIANCE_STRICT1 1 ///< Strictly conform to all the things in the spec no matter what consequences. |
| 2760 | #define FF_COMPLIANCE_NORMAL0 0 |
| 2761 | #define FF_COMPLIANCE_UNOFFICIAL-1 -1 ///< Allow unofficial extensions |
| 2762 | #define FF_COMPLIANCE_EXPERIMENTAL-2 -2 ///< Allow nonstandardized experimental things. |
| 2763 | |
| 2764 | /** |
| 2765 | * error concealment flags |
| 2766 | * - encoding: unused |
| 2767 | * - decoding: Set by user. |
| 2768 | */ |
| 2769 | int error_concealment; |
| 2770 | #define FF_EC_GUESS_MVS1 1 |
| 2771 | #define FF_EC_DEBLOCK2 2 |
| 2772 | #define FF_EC_FAVOR_INTER256 256 |
| 2773 | |
| 2774 | /** |
| 2775 | * debug |
| 2776 | * - encoding: Set by user. |
| 2777 | * - decoding: Set by user. |
| 2778 | */ |
| 2779 | int debug; |
| 2780 | #define FF_DEBUG_PICT_INFO1 1 |
| 2781 | #define FF_DEBUG_RC2 2 |
| 2782 | #define FF_DEBUG_BITSTREAM4 4 |
| 2783 | #define FF_DEBUG_MB_TYPE8 8 |
| 2784 | #define FF_DEBUG_QP16 16 |
| 2785 | #if FF_API_DEBUG_MV(57 < 58) |
| 2786 | /** |
| 2787 | * @deprecated this option does nothing |
| 2788 | */ |
| 2789 | #define FF_DEBUG_MV32 32 |
| 2790 | #endif |
| 2791 | #define FF_DEBUG_DCT_COEFF0x00000040 0x00000040 |
| 2792 | #define FF_DEBUG_SKIP0x00000080 0x00000080 |
| 2793 | #define FF_DEBUG_STARTCODE0x00000100 0x00000100 |
| 2794 | #if FF_API_UNUSED_MEMBERS(57 < 58) |
| 2795 | #define FF_DEBUG_PTS0x00000200 0x00000200 |
| 2796 | #endif /* FF_API_UNUSED_MEMBERS */ |
| 2797 | #define FF_DEBUG_ER0x00000400 0x00000400 |
| 2798 | #define FF_DEBUG_MMCO0x00000800 0x00000800 |
| 2799 | #define FF_DEBUG_BUGS0x00001000 0x00001000 |
| 2800 | #if FF_API_DEBUG_MV(57 < 58) |
| 2801 | #define FF_DEBUG_VIS_QP0x00002000 0x00002000 ///< only access through AVOptions from outside libavcodec |
| 2802 | #define FF_DEBUG_VIS_MB_TYPE0x00004000 0x00004000 ///< only access through AVOptions from outside libavcodec |
| 2803 | #endif |
| 2804 | #define FF_DEBUG_BUFFERS0x00008000 0x00008000 |
| 2805 | #define FF_DEBUG_THREADS0x00010000 0x00010000 |
| 2806 | #define FF_DEBUG_GREEN_MD0x00800000 0x00800000 |
| 2807 | #define FF_DEBUG_NOMC0x01000000 0x01000000 |
| 2808 | |
| 2809 | #if FF_API_DEBUG_MV(57 < 58) |
| 2810 | /** |
| 2811 | * debug |
| 2812 | * Code outside libavcodec should access this field using AVOptions |
| 2813 | * - encoding: Set by user. |
| 2814 | * - decoding: Set by user. |
| 2815 | */ |
| 2816 | int debug_mv; |
| 2817 | #define FF_DEBUG_VIS_MV_P_FOR0x00000001 0x00000001 //visualize forward predicted MVs of P frames |
| 2818 | #define FF_DEBUG_VIS_MV_B_FOR0x00000002 0x00000002 //visualize forward predicted MVs of B frames |
| 2819 | #define FF_DEBUG_VIS_MV_B_BACK0x00000004 0x00000004 //visualize backward predicted MVs of B frames |
| 2820 | #endif |
| 2821 | |
| 2822 | /** |
| 2823 | * Error recognition; may misdetect some more or less valid parts as errors. |
| 2824 | * - encoding: unused |
| 2825 | * - decoding: Set by user. |
| 2826 | */ |
| 2827 | int err_recognition; |
| 2828 | |
| 2829 | /** |
| 2830 | * Verify checksums embedded in the bitstream (could be of either encoded or |
| 2831 | * decoded data, depending on the codec) and print an error message on mismatch. |
| 2832 | * If AV_EF_EXPLODE is also set, a mismatching checksum will result in the |
| 2833 | * decoder returning an error. |
| 2834 | */ |
| 2835 | #define AV_EF_CRCCHECK(1<<0) (1<<0) |
| 2836 | #define AV_EF_BITSTREAM(1<<1) (1<<1) ///< detect bitstream specification deviations |
| 2837 | #define AV_EF_BUFFER(1<<2) (1<<2) ///< detect improper bitstream length |
| 2838 | #define AV_EF_EXPLODE(1<<3) (1<<3) ///< abort decoding on minor error detection |
| 2839 | |
| 2840 | #define AV_EF_IGNORE_ERR(1<<15) (1<<15) ///< ignore errors and continue |
| 2841 | #define AV_EF_CAREFUL(1<<16) (1<<16) ///< consider things that violate the spec, are fast to calculate and have not been seen in the wild as errors |
| 2842 | #define AV_EF_COMPLIANT(1<<17) (1<<17) ///< consider all spec non compliances as errors |
| 2843 | #define AV_EF_AGGRESSIVE(1<<18) (1<<18) ///< consider things that a sane encoder should not do as an error |
| 2844 | |
| 2845 | |
| 2846 | /** |
| 2847 | * opaque 64bit number (generally a PTS) that will be reordered and |
| 2848 | * output in AVFrame.reordered_opaque |
| 2849 | * - encoding: unused |
| 2850 | * - decoding: Set by user. |
| 2851 | */ |
| 2852 | int64_t reordered_opaque; |
| 2853 | |
| 2854 | /** |
| 2855 | * Hardware accelerator in use |
| 2856 | * - encoding: unused. |
| 2857 | * - decoding: Set by libavcodec |
| 2858 | */ |
| 2859 | struct AVHWAccel *hwaccel; |
| 2860 | |
| 2861 | /** |
| 2862 | * Hardware accelerator context. |
| 2863 | * For some hardware accelerators, a global context needs to be |
| 2864 | * provided by the user. In that case, this holds display-dependent |
| 2865 | * data FFmpeg cannot instantiate itself. Please refer to the |
| 2866 | * FFmpeg HW accelerator documentation to know how to fill this |
| 2867 | * is. e.g. for VA API, this is a struct vaapi_context. |
| 2868 | * - encoding: unused |
| 2869 | * - decoding: Set by user |
| 2870 | */ |
| 2871 | void *hwaccel_context; |
| 2872 | |
| 2873 | /** |
| 2874 | * error |
| 2875 | * - encoding: Set by libavcodec if flags & AV_CODEC_FLAG_PSNR. |
| 2876 | * - decoding: unused |
| 2877 | */ |
| 2878 | uint64_t error[AV_NUM_DATA_POINTERS8]; |
| 2879 | |
| 2880 | /** |
| 2881 | * DCT algorithm, see FF_DCT_* below |
| 2882 | * - encoding: Set by user. |
| 2883 | * - decoding: unused |
| 2884 | */ |
| 2885 | int dct_algo; |
| 2886 | #define FF_DCT_AUTO0 0 |
| 2887 | #define FF_DCT_FASTINT1 1 |
| 2888 | #define FF_DCT_INT2 2 |
| 2889 | #define FF_DCT_MMX3 3 |
| 2890 | #define FF_DCT_ALTIVEC5 5 |
| 2891 | #define FF_DCT_FAAN6 6 |
| 2892 | |
| 2893 | /** |
| 2894 | * IDCT algorithm, see FF_IDCT_* below. |
| 2895 | * - encoding: Set by user. |
| 2896 | * - decoding: Set by user. |
| 2897 | */ |
| 2898 | int idct_algo; |
| 2899 | #define FF_IDCT_AUTO0 0 |
| 2900 | #define FF_IDCT_INT1 1 |
| 2901 | #define FF_IDCT_SIMPLE2 2 |
| 2902 | #define FF_IDCT_SIMPLEMMX3 3 |
| 2903 | #define FF_IDCT_ARM7 7 |
| 2904 | #define FF_IDCT_ALTIVEC8 8 |
| 2905 | #if FF_API_ARCH_SH4(57 < 58) |
| 2906 | #define FF_IDCT_SH49 9 |
| 2907 | #endif |
| 2908 | #define FF_IDCT_SIMPLEARM10 10 |
| 2909 | #if FF_API_UNUSED_MEMBERS(57 < 58) |
| 2910 | #define FF_IDCT_IPP13 13 |
| 2911 | #endif /* FF_API_UNUSED_MEMBERS */ |
| 2912 | #define FF_IDCT_XVID14 14 |
| 2913 | #if FF_API_IDCT_XVIDMMX(57 < 58) |
| 2914 | #define FF_IDCT_XVIDMMX14 14 |
| 2915 | #endif /* FF_API_IDCT_XVIDMMX */ |
| 2916 | #define FF_IDCT_SIMPLEARMV5TE16 16 |
| 2917 | #define FF_IDCT_SIMPLEARMV617 17 |
| 2918 | #if FF_API_ARCH_SPARC(57 < 58) |
| 2919 | #define FF_IDCT_SIMPLEVIS18 18 |
| 2920 | #endif |
| 2921 | #define FF_IDCT_FAAN20 20 |
| 2922 | #define FF_IDCT_SIMPLENEON22 22 |
| 2923 | #if FF_API_ARCH_ALPHA(57 < 58) |
| 2924 | #define FF_IDCT_SIMPLEALPHA23 23 |
| 2925 | #endif |
| 2926 | #define FF_IDCT_SIMPLEAUTO128 128 |
| 2927 | |
| 2928 | /** |
| 2929 | * bits per sample/pixel from the demuxer (needed for huffyuv). |
| 2930 | * - encoding: Set by libavcodec. |
| 2931 | * - decoding: Set by user. |
| 2932 | */ |
| 2933 | int bits_per_coded_sample; |
| 2934 | |
| 2935 | /** |
| 2936 | * Bits per sample/pixel of internal libavcodec pixel/sample format. |
| 2937 | * - encoding: set by user. |
| 2938 | * - decoding: set by libavcodec. |
| 2939 | */ |
| 2940 | int bits_per_raw_sample; |
| 2941 | |
| 2942 | #if FF_API_LOWRES(57 < 58) |
| 2943 | /** |
| 2944 | * low resolution decoding, 1-> 1/2 size, 2->1/4 size |
| 2945 | * - encoding: unused |
| 2946 | * - decoding: Set by user. |
| 2947 | * Code outside libavcodec should access this field using: |
| 2948 | * av_codec_{get,set}_lowres(avctx) |
| 2949 | */ |
| 2950 | int lowres; |
| 2951 | #endif |
| 2952 | |
| 2953 | #if FF_API_CODED_FRAME(57 < 59) |
| 2954 | /** |
| 2955 | * the picture in the bitstream |
| 2956 | * - encoding: Set by libavcodec. |
| 2957 | * - decoding: unused |
| 2958 | * |
| 2959 | * @deprecated use the quality factor packet side data instead |
| 2960 | */ |
| 2961 | attribute_deprecated__attribute__((deprecated)) AVFrame *coded_frame; |
| 2962 | #endif |
| 2963 | |
| 2964 | /** |
| 2965 | * thread count |
| 2966 | * is used to decide how many independent tasks should be passed to execute() |
| 2967 | * - encoding: Set by user. |
| 2968 | * - decoding: Set by user. |
| 2969 | */ |
| 2970 | int thread_count; |
| 2971 | |
| 2972 | /** |
| 2973 | * Which multithreading methods to use. |
| 2974 | * Use of FF_THREAD_FRAME will increase decoding delay by one frame per thread, |
| 2975 | * so clients which cannot provide future frames should not use it. |
| 2976 | * |
| 2977 | * - encoding: Set by user, otherwise the default is used. |
| 2978 | * - decoding: Set by user, otherwise the default is used. |
| 2979 | */ |
| 2980 | int thread_type; |
| 2981 | #define FF_THREAD_FRAME1 1 ///< Decode more than one frame at once |
| 2982 | #define FF_THREAD_SLICE2 2 ///< Decode more than one part of a single frame at once |
| 2983 | |
| 2984 | /** |
| 2985 | * Which multithreading methods are in use by the codec. |
| 2986 | * - encoding: Set by libavcodec. |
| 2987 | * - decoding: Set by libavcodec. |
| 2988 | */ |
| 2989 | int active_thread_type; |
| 2990 | |
| 2991 | /** |
| 2992 | * Set by the client if its custom get_buffer() callback can be called |
| 2993 | * synchronously from another thread, which allows faster multithreaded decoding. |
| 2994 | * draw_horiz_band() will be called from other threads regardless of this setting. |
| 2995 | * Ignored if the default get_buffer() is used. |
| 2996 | * - encoding: Set by user. |
| 2997 | * - decoding: Set by user. |
| 2998 | */ |
| 2999 | int thread_safe_callbacks; |
| 3000 | |
| 3001 | /** |
| 3002 | * The codec may call this to execute several independent things. |
| 3003 | * It will return only after finishing all tasks. |
| 3004 | * The user may replace this with some multithreaded implementation, |
| 3005 | * the default implementation will execute the parts serially. |
| 3006 | * @param count the number of things to execute |
| 3007 | * - encoding: Set by libavcodec, user can override. |
| 3008 | * - decoding: Set by libavcodec, user can override. |
| 3009 | */ |
| 3010 | int (*execute)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg), void *arg2, int *ret, int count, int size); |
| 3011 | |
| 3012 | /** |
| 3013 | * The codec may call this to execute several independent things. |
| 3014 | * It will return only after finishing all tasks. |
| 3015 | * The user may replace this with some multithreaded implementation, |
| 3016 | * the default implementation will execute the parts serially. |
| 3017 | * Also see avcodec_thread_init and e.g. the --enable-pthread configure option. |
| 3018 | * @param c context passed also to func |
| 3019 | * @param count the number of things to execute |
| 3020 | * @param arg2 argument passed unchanged to func |
| 3021 | * @param ret return values of executed functions, must have space for "count" values. May be NULL. |
| 3022 | * @param func function that will be called count times, with jobnr from 0 to count-1. |
| 3023 | * threadnr will be in the range 0 to c->thread_count-1 < MAX_THREADS and so that no |
| 3024 | * two instances of func executing at the same time will have the same threadnr. |
| 3025 | * @return always 0 currently, but code should handle a future improvement where when any call to func |
| 3026 | * returns < 0 no further calls to func may be done and < 0 is returned. |
| 3027 | * - encoding: Set by libavcodec, user can override. |
| 3028 | * - decoding: Set by libavcodec, user can override. |
| 3029 | */ |
| 3030 | int (*execute2)(struct AVCodecContext *c, int (*func)(struct AVCodecContext *c2, void *arg, int jobnr, int threadnr), void *arg2, int *ret, int count); |
| 3031 | |
| 3032 | /** |
| 3033 | * noise vs. sse weight for the nsse comparison function |
| 3034 | * - encoding: Set by user. |
| 3035 | * - decoding: unused |
| 3036 | */ |
| 3037 | int nsse_weight; |
| 3038 | |
| 3039 | /** |
| 3040 | * profile |
| 3041 | * - encoding: Set by user. |
| 3042 | * - decoding: Set by libavcodec. |
| 3043 | */ |
| 3044 | int profile; |
| 3045 | #define FF_PROFILE_UNKNOWN-99 -99 |
| 3046 | #define FF_PROFILE_RESERVED-100 -100 |
| 3047 | |
| 3048 | #define FF_PROFILE_AAC_MAIN0 0 |
| 3049 | #define FF_PROFILE_AAC_LOW1 1 |
| 3050 | #define FF_PROFILE_AAC_SSR2 2 |
| 3051 | #define FF_PROFILE_AAC_LTP3 3 |
| 3052 | #define FF_PROFILE_AAC_HE4 4 |
| 3053 | #define FF_PROFILE_AAC_HE_V228 28 |
| 3054 | #define FF_PROFILE_AAC_LD22 22 |
| 3055 | #define FF_PROFILE_AAC_ELD38 38 |
| 3056 | #define FF_PROFILE_MPEG2_AAC_LOW128 128 |
| 3057 | #define FF_PROFILE_MPEG2_AAC_HE131 131 |
| 3058 | |
| 3059 | #define FF_PROFILE_DTS20 20 |
| 3060 | #define FF_PROFILE_DTS_ES30 30 |
| 3061 | #define FF_PROFILE_DTS_96_2440 40 |
| 3062 | #define FF_PROFILE_DTS_HD_HRA50 50 |
| 3063 | #define FF_PROFILE_DTS_HD_MA60 60 |
| 3064 | #define FF_PROFILE_DTS_EXPRESS70 70 |
| 3065 | |
| 3066 | #define FF_PROFILE_MPEG2_4220 0 |
| 3067 | #define FF_PROFILE_MPEG2_HIGH1 1 |
| 3068 | #define FF_PROFILE_MPEG2_SS2 2 |
| 3069 | #define FF_PROFILE_MPEG2_SNR_SCALABLE3 3 |
| 3070 | #define FF_PROFILE_MPEG2_MAIN4 4 |
| 3071 | #define FF_PROFILE_MPEG2_SIMPLE5 5 |
| 3072 | |
| 3073 | #define FF_PROFILE_H264_CONSTRAINED(1<<9) (1<<9) // 8+1; constraint_set1_flag |
| 3074 | #define FF_PROFILE_H264_INTRA(1<<11) (1<<11) // 8+3; constraint_set3_flag |
| 3075 | |
| 3076 | #define FF_PROFILE_H264_BASELINE66 66 |
| 3077 | #define FF_PROFILE_H264_CONSTRAINED_BASELINE(66|(1<<9)) (66|FF_PROFILE_H264_CONSTRAINED(1<<9)) |
| 3078 | #define FF_PROFILE_H264_MAIN77 77 |
| 3079 | #define FF_PROFILE_H264_EXTENDED88 88 |
| 3080 | #define FF_PROFILE_H264_HIGH100 100 |
| 3081 | #define FF_PROFILE_H264_HIGH_10110 110 |
| 3082 | #define FF_PROFILE_H264_HIGH_10_INTRA(110|(1<<11)) (110|FF_PROFILE_H264_INTRA(1<<11)) |
| 3083 | #define FF_PROFILE_H264_HIGH_422122 122 |
| 3084 | #define FF_PROFILE_H264_HIGH_422_INTRA(122|(1<<11)) (122|FF_PROFILE_H264_INTRA(1<<11)) |
| 3085 | #define FF_PROFILE_H264_HIGH_444144 144 |
| 3086 | #define FF_PROFILE_H264_HIGH_444_PREDICTIVE244 244 |
| 3087 | #define FF_PROFILE_H264_HIGH_444_INTRA(244|(1<<11)) (244|FF_PROFILE_H264_INTRA(1<<11)) |
| 3088 | #define FF_PROFILE_H264_CAVLC_44444 44 |
| 3089 | |
| 3090 | #define FF_PROFILE_VC1_SIMPLE0 0 |
| 3091 | #define FF_PROFILE_VC1_MAIN1 1 |
| 3092 | #define FF_PROFILE_VC1_COMPLEX2 2 |
| 3093 | #define FF_PROFILE_VC1_ADVANCED3 3 |
| 3094 | |
| 3095 | #define FF_PROFILE_MPEG4_SIMPLE0 0 |
| 3096 | #define FF_PROFILE_MPEG4_SIMPLE_SCALABLE1 1 |
| 3097 | #define FF_PROFILE_MPEG4_CORE2 2 |
| 3098 | #define FF_PROFILE_MPEG4_MAIN3 3 |
| 3099 | #define FF_PROFILE_MPEG4_N_BIT4 4 |
| 3100 | #define FF_PROFILE_MPEG4_SCALABLE_TEXTURE5 5 |
| 3101 | #define FF_PROFILE_MPEG4_SIMPLE_FACE_ANIMATION6 6 |
| 3102 | #define FF_PROFILE_MPEG4_BASIC_ANIMATED_TEXTURE7 7 |
| 3103 | #define FF_PROFILE_MPEG4_HYBRID8 8 |
| 3104 | #define FF_PROFILE_MPEG4_ADVANCED_REAL_TIME9 9 |
| 3105 | #define FF_PROFILE_MPEG4_CORE_SCALABLE10 10 |
| 3106 | #define FF_PROFILE_MPEG4_ADVANCED_CODING11 11 |
| 3107 | #define FF_PROFILE_MPEG4_ADVANCED_CORE12 12 |
| 3108 | #define FF_PROFILE_MPEG4_ADVANCED_SCALABLE_TEXTURE13 13 |
| 3109 | #define FF_PROFILE_MPEG4_SIMPLE_STUDIO14 14 |
| 3110 | #define FF_PROFILE_MPEG4_ADVANCED_SIMPLE15 15 |
| 3111 | |
| 3112 | #define FF_PROFILE_JPEG2000_CSTREAM_RESTRICTION_00 0 |
| 3113 | #define FF_PROFILE_JPEG2000_CSTREAM_RESTRICTION_11 1 |
| 3114 | #define FF_PROFILE_JPEG2000_CSTREAM_NO_RESTRICTION2 2 |
| 3115 | #define FF_PROFILE_JPEG2000_DCINEMA_2K3 3 |
| 3116 | #define FF_PROFILE_JPEG2000_DCINEMA_4K4 4 |
| 3117 | |
| 3118 | #define FF_PROFILE_VP9_00 0 |
| 3119 | #define FF_PROFILE_VP9_11 1 |
| 3120 | #define FF_PROFILE_VP9_22 2 |
| 3121 | #define FF_PROFILE_VP9_33 3 |
| 3122 | |
| 3123 | #define FF_PROFILE_HEVC_MAIN1 1 |
| 3124 | #define FF_PROFILE_HEVC_MAIN_102 2 |
| 3125 | #define FF_PROFILE_HEVC_MAIN_STILL_PICTURE3 3 |
| 3126 | #define FF_PROFILE_HEVC_REXT4 4 |
| 3127 | |
| 3128 | /** |
| 3129 | * level |
| 3130 | * - encoding: Set by user. |
| 3131 | * - decoding: Set by libavcodec. |
| 3132 | */ |
| 3133 | int level; |
| 3134 | #define FF_LEVEL_UNKNOWN-99 -99 |
| 3135 | |
| 3136 | /** |
| 3137 | * Skip loop filtering for selected frames. |
| 3138 | * - encoding: unused |
| 3139 | * - decoding: Set by user. |
| 3140 | */ |
| 3141 | enum AVDiscard skip_loop_filter; |
| 3142 | |
| 3143 | /** |
| 3144 | * Skip IDCT/dequantization for selected frames. |
| 3145 | * - encoding: unused |
| 3146 | * - decoding: Set by user. |
| 3147 | */ |
| 3148 | enum AVDiscard skip_idct; |
| 3149 | |
| 3150 | /** |
| 3151 | * Skip decoding for selected frames. |
| 3152 | * - encoding: unused |
| 3153 | * - decoding: Set by user. |
| 3154 | */ |
| 3155 | enum AVDiscard skip_frame; |
| 3156 | |
| 3157 | /** |
| 3158 | * Header containing style information for text subtitles. |
| 3159 | * For SUBTITLE_ASS subtitle type, it should contain the whole ASS |
| 3160 | * [Script Info] and [V4+ Styles] section, plus the [Events] line and |
| 3161 | * the Format line following. It shouldn't include any Dialogue line. |
| 3162 | * - encoding: Set/allocated/freed by user (before avcodec_open2()) |
| 3163 | * - decoding: Set/allocated/freed by libavcodec (by avcodec_open2()) |
| 3164 | */ |
| 3165 | uint8_t *subtitle_header; |
| 3166 | int subtitle_header_size; |
| 3167 | |
| 3168 | #if FF_API_ERROR_RATE(57 < 58) |
| 3169 | /** |
| 3170 | * @deprecated use the 'error_rate' private AVOption of the mpegvideo |
| 3171 | * encoders |
| 3172 | */ |
| 3173 | attribute_deprecated__attribute__((deprecated)) |
| 3174 | int error_rate; |
| 3175 | #endif |
| 3176 | |
| 3177 | #if FF_API_VBV_DELAY(57 < 59) |
| 3178 | /** |
| 3179 | * VBV delay coded in the last frame (in periods of a 27 MHz clock). |
| 3180 | * Used for compliant TS muxing. |
| 3181 | * - encoding: Set by libavcodec. |
| 3182 | * - decoding: unused. |
| 3183 | * @deprecated this value is now exported as a part of |
| 3184 | * AV_PKT_DATA_CPB_PROPERTIES packet side data |
| 3185 | */ |
| 3186 | attribute_deprecated__attribute__((deprecated)) |
| 3187 | uint64_t vbv_delay; |
| 3188 | #endif |
| 3189 | |
| 3190 | #if FF_API_SIDEDATA_ONLY_PKT(57 < 59) |
| 3191 | /** |
| 3192 | * Encoding only and set by default. Allow encoders to output packets |
| 3193 | * that do not contain any encoded data, only side data. |
| 3194 | * |
| 3195 | * Some encoders need to output such packets, e.g. to update some stream |
| 3196 | * parameters at the end of encoding. |
| 3197 | * |
| 3198 | * @deprecated this field disables the default behaviour and |
| 3199 | * it is kept only for compatibility. |
| 3200 | */ |
| 3201 | attribute_deprecated__attribute__((deprecated)) |
| 3202 | int side_data_only_packets; |
| 3203 | #endif |
| 3204 | |
| 3205 | /** |
| 3206 | * Audio only. The number of "priming" samples (padding) inserted by the |
| 3207 | * encoder at the beginning of the audio. I.e. this number of leading |
| 3208 | * decoded samples must be discarded by the caller to get the original audio |
| 3209 | * without leading padding. |
| 3210 | * |
| 3211 | * - decoding: unused |
| 3212 | * - encoding: Set by libavcodec. The timestamps on the output packets are |
| 3213 | * adjusted by the encoder so that they always refer to the |
| 3214 | * first sample of the data actually contained in the packet, |
| 3215 | * including any added padding. E.g. if the timebase is |
| 3216 | * 1/samplerate and the timestamp of the first input sample is |
| 3217 | * 0, the timestamp of the first output packet will be |
| 3218 | * -initial_padding. |
| 3219 | */ |
| 3220 | int initial_padding; |
| 3221 | |
| 3222 | /** |
| 3223 | * - decoding: For codecs that store a framerate value in the compressed |
| 3224 | * bitstream, the decoder may export it here. { 0, 1} when |
| 3225 | * unknown. |
| 3226 | * - encoding: unused |
| 3227 | */ |
| 3228 | AVRational framerate; |
| 3229 | |
| 3230 | /** |
| 3231 | * Nominal unaccelerated pixel format, see AV_PIX_FMT_xxx. |
| 3232 | * - encoding: unused. |
| 3233 | * - decoding: Set by libavcodec before calling get_format() |
| 3234 | */ |
| 3235 | enum AVPixelFormat sw_pix_fmt; |
| 3236 | |
| 3237 | /** |
| 3238 | * Timebase in which pkt_dts/pts and AVPacket.dts/pts are. |
| 3239 | * Code outside libavcodec should access this field using: |
| 3240 | * av_codec_{get,set}_pkt_timebase(avctx) |
| 3241 | * - encoding unused. |
| 3242 | * - decoding set by user. |
| 3243 | */ |
| 3244 | AVRational pkt_timebase; |
| 3245 | |
| 3246 | /** |
| 3247 | * AVCodecDescriptor |
| 3248 | * Code outside libavcodec should access this field using: |
| 3249 | * av_codec_{get,set}_codec_descriptor(avctx) |
| 3250 | * - encoding: unused. |
| 3251 | * - decoding: set by libavcodec. |
| 3252 | */ |
| 3253 | const AVCodecDescriptor *codec_descriptor; |
| 3254 | |
| 3255 | #if !FF_API_LOWRES(57 < 58) |
| 3256 | /** |
| 3257 | * low resolution decoding, 1-> 1/2 size, 2->1/4 size |
| 3258 | * - encoding: unused |
| 3259 | * - decoding: Set by user. |
| 3260 | * Code outside libavcodec should access this field using: |
| 3261 | * av_codec_{get,set}_lowres(avctx) |
| 3262 | */ |
| 3263 | int lowres; |
| 3264 | #endif |
| 3265 | |
| 3266 | /** |
| 3267 | * Current statistics for PTS correction. |
| 3268 | * - decoding: maintained and used by libavcodec, not intended to be used by user apps |
| 3269 | * - encoding: unused |
| 3270 | */ |
| 3271 | int64_t pts_correction_num_faulty_pts; /// Number of incorrect PTS values so far |
| 3272 | int64_t pts_correction_num_faulty_dts; /// Number of incorrect DTS values so far |
| 3273 | int64_t pts_correction_last_pts; /// PTS of the last frame |
| 3274 | int64_t pts_correction_last_dts; /// DTS of the last frame |
| 3275 | |
| 3276 | /** |
| 3277 | * Character encoding of the input subtitles file. |
| 3278 | * - decoding: set by user |
| 3279 | * - encoding: unused |
| 3280 | */ |
| 3281 | char *sub_charenc; |
| 3282 | |
| 3283 | /** |
| 3284 | * Subtitles character encoding mode. Formats or codecs might be adjusting |
| 3285 | * this setting (if they are doing the conversion themselves for instance). |
| 3286 | * - decoding: set by libavcodec |
| 3287 | * - encoding: unused |
| 3288 | */ |
| 3289 | int sub_charenc_mode; |
| 3290 | #define FF_SUB_CHARENC_MODE_DO_NOTHING-1 -1 ///< do nothing (demuxer outputs a stream supposed to be already in UTF-8, or the codec is bitmap for instance) |
| 3291 | #define FF_SUB_CHARENC_MODE_AUTOMATIC0 0 ///< libavcodec will select the mode itself |
| 3292 | #define FF_SUB_CHARENC_MODE_PRE_DECODER1 1 ///< the AVPacket data needs to be recoded to UTF-8 before being fed to the decoder, requires iconv |
| 3293 | |
| 3294 | /** |
| 3295 | * Skip processing alpha if supported by codec. |
| 3296 | * Note that if the format uses pre-multiplied alpha (common with VP6, |
| 3297 | * and recommended due to better video quality/compression) |
| 3298 | * the image will look as if alpha-blended onto a black background. |
| 3299 | * However for formats that do not use pre-multiplied alpha |
| 3300 | * there might be serious artefacts (though e.g. libswscale currently |
| 3301 | * assumes pre-multiplied alpha anyway). |
| 3302 | * Code outside libavcodec should access this field using AVOptions |
| 3303 | * |
| 3304 | * - decoding: set by user |
| 3305 | * - encoding: unused |
| 3306 | */ |
| 3307 | int skip_alpha; |
| 3308 | |
| 3309 | /** |
| 3310 | * Number of samples to skip after a discontinuity |
| 3311 | * - decoding: unused |
| 3312 | * - encoding: set by libavcodec |
| 3313 | */ |
| 3314 | int seek_preroll; |
| 3315 | |
| 3316 | #if !FF_API_DEBUG_MV(57 < 58) |
| 3317 | /** |
| 3318 | * debug motion vectors |
| 3319 | * Code outside libavcodec should access this field using AVOptions |
| 3320 | * - encoding: Set by user. |
| 3321 | * - decoding: Set by user. |
| 3322 | */ |
| 3323 | int debug_mv; |
| 3324 | #define FF_DEBUG_VIS_MV_P_FOR0x00000001 0x00000001 //visualize forward predicted MVs of P frames |
| 3325 | #define FF_DEBUG_VIS_MV_B_FOR0x00000002 0x00000002 //visualize forward predicted MVs of B frames |
| 3326 | #define FF_DEBUG_VIS_MV_B_BACK0x00000004 0x00000004 //visualize backward predicted MVs of B frames |
| 3327 | #endif |
| 3328 | |
| 3329 | /** |
| 3330 | * custom intra quantization matrix |
| 3331 | * Code outside libavcodec should access this field using av_codec_g/set_chroma_intra_matrix() |
| 3332 | * - encoding: Set by user, can be NULL. |
| 3333 | * - decoding: unused. |
| 3334 | */ |
| 3335 | uint16_t *chroma_intra_matrix; |
| 3336 | |
| 3337 | /** |
| 3338 | * dump format separator. |
| 3339 | * can be ", " or "\n " or anything else |
| 3340 | * Code outside libavcodec should access this field using AVOptions |
| 3341 | * (NO direct access). |
| 3342 | * - encoding: Set by user. |
| 3343 | * - decoding: Set by user. |
| 3344 | */ |
| 3345 | uint8_t *dump_separator; |
| 3346 | |
| 3347 | /** |
| 3348 | * ',' separated list of allowed decoders. |
| 3349 | * If NULL then all are allowed |
| 3350 | * - encoding: unused |
| 3351 | * - decoding: set by user through AVOPtions (NO direct access) |
| 3352 | */ |
| 3353 | char *codec_whitelist; |
| 3354 | |
| 3355 | /* |
| 3356 | * Properties of the stream that gets decoded |
| 3357 | * To be accessed through av_codec_get_properties() (NO direct access) |
| 3358 | * - encoding: unused |
| 3359 | * - decoding: set by libavcodec |
| 3360 | */ |
| 3361 | unsigned properties; |
| 3362 | #define FF_CODEC_PROPERTY_LOSSLESS0x00000001 0x00000001 |
| 3363 | #define FF_CODEC_PROPERTY_CLOSED_CAPTIONS0x00000002 0x00000002 |
| 3364 | |
| 3365 | /** |
| 3366 | * Additional data associated with the entire coded stream. |
| 3367 | * |
| 3368 | * - decoding: unused |
| 3369 | * - encoding: may be set by libavcodec after avcodec_open2(). |
| 3370 | */ |
| 3371 | AVPacketSideData *coded_side_data; |
| 3372 | int nb_coded_side_data; |
| 3373 | |
| 3374 | } AVCodecContext; |
| 3375 | |
| 3376 | AVRational av_codec_get_pkt_timebase (const AVCodecContext *avctx); |
| 3377 | void av_codec_set_pkt_timebase (AVCodecContext *avctx, AVRational val); |
| 3378 | |
| 3379 | const AVCodecDescriptor *av_codec_get_codec_descriptor(const AVCodecContext *avctx); |
| 3380 | void av_codec_set_codec_descriptor(AVCodecContext *avctx, const AVCodecDescriptor *desc); |
| 3381 | |
| 3382 | unsigned av_codec_get_codec_properties(const AVCodecContext *avctx); |
| 3383 | |
| 3384 | int av_codec_get_lowres(const AVCodecContext *avctx); |
| 3385 | void av_codec_set_lowres(AVCodecContext *avctx, int val); |
| 3386 | |
| 3387 | int av_codec_get_seek_preroll(const AVCodecContext *avctx); |
| 3388 | void av_codec_set_seek_preroll(AVCodecContext *avctx, int val); |
| 3389 | |
| 3390 | uint16_t *av_codec_get_chroma_intra_matrix(const AVCodecContext *avctx); |
| 3391 | void av_codec_set_chroma_intra_matrix(AVCodecContext *avctx, uint16_t *val); |
| 3392 | |
| 3393 | /** |
| 3394 | * AVProfile. |
| 3395 | */ |
| 3396 | typedef struct AVProfile { |
| 3397 | int profile; |
| 3398 | const char *name; ///< short name for the profile |
| 3399 | } AVProfile; |
| 3400 | |
| 3401 | typedef struct AVCodecDefault AVCodecDefault; |
| 3402 | |
| 3403 | struct AVSubtitle; |
| 3404 | |
| 3405 | /** |
| 3406 | * AVCodec. |
| 3407 | */ |
| 3408 | typedef struct AVCodec { |
| 3409 | /** |
| 3410 | * Name of the codec implementation. |
| 3411 | * The name is globally unique among encoders and among decoders (but an |
| 3412 | * encoder and a decoder can share the same name). |
| 3413 | * This is the primary way to find a codec from the user perspective. |
| 3414 | */ |
| 3415 | const char *name; |
| 3416 | /** |
| 3417 | * Descriptive name for the codec, meant to be more human readable than name. |
| 3418 | * You should use the NULL_IF_CONFIG_SMALL() macro to define it. |
| 3419 | */ |
| 3420 | const char *long_name; |
| 3421 | enum AVMediaType type; |
| 3422 | enum AVCodecID id; |
| 3423 | /** |
| 3424 | * Codec capabilities. |
| 3425 | * see AV_CODEC_CAP_* |
| 3426 | */ |
| 3427 | int capabilities; |
| 3428 | const AVRational *supported_framerates; ///< array of supported framerates, or NULL if any, array is terminated by {0,0} |
| 3429 | const enum AVPixelFormat *pix_fmts; ///< array of supported pixel formats, or NULL if unknown, array is terminated by -1 |
| 3430 | const int *supported_samplerates; ///< array of supported audio samplerates, or NULL if unknown, array is terminated by 0 |
| 3431 | const enum AVSampleFormat *sample_fmts; ///< array of supported sample formats, or NULL if unknown, array is terminated by -1 |
| 3432 | const uint64_t *channel_layouts; ///< array of support channel layouts, or NULL if unknown. array is terminated by 0 |
| 3433 | uint8_t max_lowres; ///< maximum value for lowres supported by the decoder, no direct access, use av_codec_get_max_lowres() |
| 3434 | const AVClass *priv_class; ///< AVClass for the private context |
| 3435 | const AVProfile *profiles; ///< array of recognized profiles, or NULL if unknown, array is terminated by {FF_PROFILE_UNKNOWN} |
| 3436 | |
| 3437 | /***************************************************************** |
| 3438 | * No fields below this line are part of the public API. They |
| 3439 | * may not be used outside of libavcodec and can be changed and |
| 3440 | * removed at will. |
| 3441 | * New public fields should be added right above. |
| 3442 | ***************************************************************** |
| 3443 | */ |
| 3444 | int priv_data_size; |
| 3445 | struct AVCodec *next; |
| 3446 | /** |
| 3447 | * @name Frame-level threading support functions |
| 3448 | * @{ |
| 3449 | */ |
| 3450 | /** |
| 3451 | * If defined, called on thread contexts when they are created. |
| 3452 | * If the codec allocates writable tables in init(), re-allocate them here. |
| 3453 | * priv_data will be set to a copy of the original. |
| 3454 | */ |
| 3455 | int (*init_thread_copy)(AVCodecContext *); |
| 3456 | /** |
| 3457 | * Copy necessary context variables from a previous thread context to the current one. |
| 3458 | * If not defined, the next thread will start automatically; otherwise, the codec |
| 3459 | * must call ff_thread_finish_setup(). |
| 3460 | * |
| 3461 | * dst and src will (rarely) point to the same context, in which case memcpy should be skipped. |
| 3462 | */ |
| 3463 | int (*update_thread_context)(AVCodecContext *dst, const AVCodecContext *src); |
| 3464 | /** @} */ |
| 3465 | |
| 3466 | /** |
| 3467 | * Private codec-specific defaults. |
| 3468 | */ |
| 3469 | const AVCodecDefault *defaults; |
| 3470 | |
| 3471 | /** |
| 3472 | * Initialize codec static data, called from avcodec_register(). |
| 3473 | */ |
| 3474 | void (*init_static_data)(struct AVCodec *codec); |
| 3475 | |
| 3476 | int (*init)(AVCodecContext *); |
| 3477 | int (*encode_sub)(AVCodecContext *, uint8_t *buf, int buf_size, |
| 3478 | const struct AVSubtitle *sub); |
| 3479 | /** |
| 3480 | * Encode data to an AVPacket. |
| 3481 | * |
| 3482 | * @param avctx codec context |
| 3483 | * @param avpkt output AVPacket (may contain a user-provided buffer) |
| 3484 | * @param[in] frame AVFrame containing the raw data to be encoded |
| 3485 | * @param[out] got_packet_ptr encoder sets to 0 or 1 to indicate that a |
| 3486 | * non-empty packet was returned in avpkt. |
| 3487 | * @return 0 on success, negative error code on failure |
| 3488 | */ |
| 3489 | int (*encode2)(AVCodecContext *avctx, AVPacket *avpkt, const AVFrame *frame, |
| 3490 | int *got_packet_ptr); |
| 3491 | int (*decode)(AVCodecContext *, void *outdata, int *outdata_size, AVPacket *avpkt); |
| 3492 | int (*close)(AVCodecContext *); |
| 3493 | /** |
| 3494 | * Flush buffers. |
| 3495 | * Will be called when seeking |
| 3496 | */ |
| 3497 | void (*flush)(AVCodecContext *); |
| 3498 | /** |
| 3499 | * Internal codec capabilities. |
| 3500 | * See FF_CODEC_CAP_* in internal.h |
| 3501 | */ |
| 3502 | int caps_internal; |
| 3503 | } AVCodec; |
| 3504 | |
| 3505 | int av_codec_get_max_lowres(const AVCodec *codec); |
| 3506 | |
| 3507 | struct MpegEncContext; |
| 3508 | |
| 3509 | /** |
| 3510 | * @defgroup lavc_hwaccel AVHWAccel |
| 3511 | * @{ |
| 3512 | */ |
| 3513 | typedef struct AVHWAccel { |
| 3514 | /** |
| 3515 | * Name of the hardware accelerated codec. |
| 3516 | * The name is globally unique among encoders and among decoders (but an |
| 3517 | * encoder and a decoder can share the same name). |
| 3518 | */ |
| 3519 | const char *name; |
| 3520 | |
| 3521 | /** |
| 3522 | * Type of codec implemented by the hardware accelerator. |
| 3523 | * |
| 3524 | * See AVMEDIA_TYPE_xxx |
| 3525 | */ |
| 3526 | enum AVMediaType type; |
| 3527 | |
| 3528 | /** |
| 3529 | * Codec implemented by the hardware accelerator. |
| 3530 | * |
| 3531 | * See AV_CODEC_ID_xxx |
| 3532 | */ |
| 3533 | enum AVCodecID id; |
| 3534 | |
| 3535 | /** |
| 3536 | * Supported pixel format. |
| 3537 | * |
| 3538 | * Only hardware accelerated formats are supported here. |
| 3539 | */ |
| 3540 | enum AVPixelFormat pix_fmt; |
| 3541 | |
| 3542 | /** |
| 3543 | * Hardware accelerated codec capabilities. |
| 3544 | * see HWACCEL_CODEC_CAP_* |
| 3545 | */ |
| 3546 | int capabilities; |
| 3547 | |
| 3548 | /***************************************************************** |
| 3549 | * No fields below this line are part of the public API. They |
| 3550 | * may not be used outside of libavcodec and can be changed and |
| 3551 | * removed at will. |
| 3552 | * New public fields should be added right above. |
| 3553 | ***************************************************************** |
| 3554 | */ |
| 3555 | struct AVHWAccel *next; |
| 3556 | |
| 3557 | /** |
| 3558 | * Allocate a custom buffer |
| 3559 | */ |
| 3560 | int (*alloc_frame)(AVCodecContext *avctx, AVFrame *frame); |
| 3561 | |
| 3562 | /** |
| 3563 | * Called at the beginning of each frame or field picture. |
| 3564 | * |
| 3565 | * Meaningful frame information (codec specific) is guaranteed to |
| 3566 | * be parsed at this point. This function is mandatory. |
| 3567 | * |
| 3568 | * Note that buf can be NULL along with buf_size set to 0. |
| 3569 | * Otherwise, this means the whole frame is available at this point. |
| 3570 | * |
| 3571 | * @param avctx the codec context |
| 3572 | * @param buf the frame data buffer base |
| 3573 | * @param buf_size the size of the frame in bytes |
| 3574 | * @return zero if successful, a negative value otherwise |
| 3575 | */ |
| 3576 | int (*start_frame)(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size); |
| 3577 | |
| 3578 | /** |
| 3579 | * Callback for each slice. |
| 3580 | * |
| 3581 | * Meaningful slice information (codec specific) is guaranteed to |
| 3582 | * be parsed at this point. This function is mandatory. |
| 3583 | * The only exception is XvMC, that works on MB level. |
| 3584 | * |
| 3585 | * @param avctx the codec context |
| 3586 | * @param buf the slice data buffer base |
| 3587 | * @param buf_size the size of the slice in bytes |
| 3588 | * @return zero if successful, a negative value otherwise |
| 3589 | */ |
| 3590 | int (*decode_slice)(AVCodecContext *avctx, const uint8_t *buf, uint32_t buf_size); |
| 3591 | |
| 3592 | /** |
| 3593 | * Called at the end of each frame or field picture. |
| 3594 | * |
| 3595 | * The whole picture is parsed at this point and can now be sent |
| 3596 | * to the hardware accelerator. This function is mandatory. |
| 3597 | * |
| 3598 | * @param avctx the codec context |
| 3599 | * @return zero if successful, a negative value otherwise |
| 3600 | */ |
| 3601 | int (*end_frame)(AVCodecContext *avctx); |
| 3602 | |
| 3603 | /** |
| 3604 | * Size of per-frame hardware accelerator private data. |
| 3605 | * |
| 3606 | * Private data is allocated with av_mallocz() before |
| 3607 | * AVCodecContext.get_buffer() and deallocated after |
| 3608 | * AVCodecContext.release_buffer(). |
| 3609 | */ |
| 3610 | int frame_priv_data_size; |
| 3611 | |
| 3612 | /** |
| 3613 | * Called for every Macroblock in a slice. |
| 3614 | * |
| 3615 | * XvMC uses it to replace the ff_mpv_decode_mb(). |
| 3616 | * Instead of decoding to raw picture, MB parameters are |
| 3617 | * stored in an array provided by the video driver. |
| 3618 | * |
| 3619 | * @param s the mpeg context |
| 3620 | */ |
| 3621 | void (*decode_mb)(struct MpegEncContext *s); |
| 3622 | |
| 3623 | /** |
| 3624 | * Initialize the hwaccel private data. |
| 3625 | * |
| 3626 | * This will be called from ff_get_format(), after hwaccel and |
| 3627 | * hwaccel_context are set and the hwaccel private data in AVCodecInternal |
| 3628 | * is allocated. |
| 3629 | */ |
| 3630 | int (*init)(AVCodecContext *avctx); |
| 3631 | |
| 3632 | /** |
| 3633 | * Uninitialize the hwaccel private data. |
| 3634 | * |
| 3635 | * This will be called from get_format() or avcodec_close(), after hwaccel |
| 3636 | * and hwaccel_context are already uninitialized. |
| 3637 | */ |
| 3638 | int (*uninit)(AVCodecContext *avctx); |
| 3639 | |
| 3640 | /** |
| 3641 | * Size of the private data to allocate in |
| 3642 | * AVCodecInternal.hwaccel_priv_data. |
| 3643 | */ |
| 3644 | int priv_data_size; |
| 3645 | } AVHWAccel; |
| 3646 | |
| 3647 | /** |
| 3648 | * Hardware acceleration should be used for decoding even if the codec level |
| 3649 | * used is unknown or higher than the maximum supported level reported by the |
| 3650 | * hardware driver. |
| 3651 | * |
| 3652 | * It's generally a good idea to pass this flag unless you have a specific |
| 3653 | * reason not to, as hardware tends to under-report supported levels. |
| 3654 | */ |
| 3655 | #define AV_HWACCEL_FLAG_IGNORE_LEVEL(1 << 0) (1 << 0) |
| 3656 | |
| 3657 | /** |
| 3658 | * Hardware acceleration can output YUV pixel formats with a different chroma |
| 3659 | * sampling than 4:2:0 and/or other than 8 bits per component. |
| 3660 | */ |
| 3661 | #define AV_HWACCEL_FLAG_ALLOW_HIGH_DEPTH(1 << 1) (1 << 1) |
| 3662 | |
| 3663 | /** |
| 3664 | * @} |
| 3665 | */ |
| 3666 | |
| 3667 | #if FF_API_AVPICTURE(57 < 59) |
| 3668 | /** |
| 3669 | * @defgroup lavc_picture AVPicture |
| 3670 | * |
| 3671 | * Functions for working with AVPicture |
| 3672 | * @{ |
| 3673 | */ |
| 3674 | |
| 3675 | /** |
| 3676 | * Picture data structure. |
| 3677 | * |
| 3678 | * Up to four components can be stored into it, the last component is |
| 3679 | * alpha. |
| 3680 | * @deprecated use AVFrame or imgutils functions instead |
| 3681 | */ |
| 3682 | typedef struct AVPicture { |
| 3683 | attribute_deprecated__attribute__((deprecated)) |
| 3684 | uint8_t *data[AV_NUM_DATA_POINTERS8]; ///< pointers to the image data planes |
| 3685 | attribute_deprecated__attribute__((deprecated)) |
| 3686 | int linesize[AV_NUM_DATA_POINTERS8]; ///< number of bytes per line |
| 3687 | } AVPicture; |
| 3688 | |
| 3689 | /** |
| 3690 | * @} |
| 3691 | */ |
| 3692 | #endif |
| 3693 | |
| 3694 | enum AVSubtitleType { |
| 3695 | SUBTITLE_NONE, |
| 3696 | |
| 3697 | SUBTITLE_BITMAP, ///< A bitmap, pict will be set |
| 3698 | |
| 3699 | /** |
| 3700 | * Plain text, the text field must be set by the decoder and is |
| 3701 | * authoritative. ass and pict fields may contain approximations. |
| 3702 | */ |
| 3703 | SUBTITLE_TEXT, |
| 3704 | |
| 3705 | /** |
| 3706 | * Formatted text, the ass field must be set by the decoder and is |
| 3707 | * authoritative. pict and text fields may contain approximations. |
| 3708 | */ |
| 3709 | SUBTITLE_ASS, |
| 3710 | }; |
| 3711 | |
| 3712 | #define AV_SUBTITLE_FLAG_FORCED0x00000001 0x00000001 |
| 3713 | |
| 3714 | typedef struct AVSubtitleRect { |
| 3715 | int x; ///< top left corner of pict, undefined when pict is not set |
| 3716 | int y; ///< top left corner of pict, undefined when pict is not set |
| 3717 | int w; ///< width of pict, undefined when pict is not set |
| 3718 | int h; ///< height of pict, undefined when pict is not set |
| 3719 | int nb_colors; ///< number of colors in pict, undefined when pict is not set |
| 3720 | |
| 3721 | #if FF_API_AVPICTURE(57 < 59) |
| 3722 | /** |
| 3723 | * @deprecated unused |
| 3724 | */ |
| 3725 | attribute_deprecated__attribute__((deprecated)) |
| 3726 | AVPicture pict; |
| 3727 | #endif |
| 3728 | /** |
| 3729 | * data+linesize for the bitmap of this subtitle. |
| 3730 | * Can be set for text/ass as well once they are rendered. |
| 3731 | */ |
| 3732 | uint8_t *data[4]; |
| 3733 | int linesize[4]; |
| 3734 | |
| 3735 | enum AVSubtitleType type; |
| 3736 | |
| 3737 | char *text; ///< 0 terminated plain UTF-8 text |
| 3738 | |
| 3739 | /** |
| 3740 | * 0 terminated ASS/SSA compatible event line. |
| 3741 | * The presentation of this is unaffected by the other values in this |
| 3742 | * struct. |
| 3743 | */ |
| 3744 | char *ass; |
| 3745 | |
| 3746 | int flags; |
| 3747 | } AVSubtitleRect; |
| 3748 | |
| 3749 | typedef struct AVSubtitle { |
| 3750 | uint16_t format; /* 0 = graphics */ |
| 3751 | uint32_t start_display_time; /* relative to packet pts, in ms */ |
| 3752 | uint32_t end_display_time; /* relative to packet pts, in ms */ |
| 3753 | unsigned num_rects; |
| 3754 | AVSubtitleRect **rects; |
| 3755 | int64_t pts; ///< Same as packet pts, in AV_TIME_BASE |
| 3756 | } AVSubtitle; |
| 3757 | |
| 3758 | /** |
| 3759 | * If c is NULL, returns the first registered codec, |
| 3760 | * if c is non-NULL, returns the next registered codec after c, |
| 3761 | * or NULL if c is the last one. |
| 3762 | */ |
| 3763 | AVCodec *av_codec_next(const AVCodec *c); |
| 3764 | |
| 3765 | /** |
| 3766 | * Return the LIBAVCODEC_VERSION_INT constant. |
| 3767 | */ |
| 3768 | unsigned avcodec_version(void); |
| 3769 | |
| 3770 | /** |
| 3771 | * Return the libavcodec build-time configuration. |
| 3772 | */ |
| 3773 | const char *avcodec_configuration(void); |
| 3774 | |
| 3775 | /** |
| 3776 | * Return the libavcodec license. |
| 3777 | */ |
| 3778 | const char *avcodec_license(void); |
| 3779 | |
| 3780 | /** |
| 3781 | * Register the codec codec and initialize libavcodec. |
| 3782 | * |
| 3783 | * @warning either this function or avcodec_register_all() must be called |
| 3784 | * before any other libavcodec functions. |
| 3785 | * |
| 3786 | * @see avcodec_register_all() |
| 3787 | */ |
| 3788 | void avcodec_register(AVCodec *codec); |
| 3789 | |
| 3790 | /** |
| 3791 | * Register all the codecs, parsers and bitstream filters which were enabled at |
| 3792 | * configuration time. If you do not call this function you can select exactly |
| 3793 | * which formats you want to support, by using the individual registration |
| 3794 | * functions. |
| 3795 | * |
| 3796 | * @see avcodec_register |
| 3797 | * @see av_register_codec_parser |
| 3798 | * @see av_register_bitstream_filter |
| 3799 | */ |
| 3800 | void avcodec_register_all(void); |
| 3801 | |
| 3802 | /** |
| 3803 | * Allocate an AVCodecContext and set its fields to default values. The |
| 3804 | * resulting struct should be freed with avcodec_free_context(). |
| 3805 | * |
| 3806 | * @param codec if non-NULL, allocate private data and initialize defaults |
| 3807 | * for the given codec. It is illegal to then call avcodec_open2() |
| 3808 | * with a different codec. |
| 3809 | * If NULL, then the codec-specific defaults won't be initialized, |
| 3810 | * which may result in suboptimal default settings (this is |
| 3811 | * important mainly for encoders, e.g. libx264). |
| 3812 | * |
| 3813 | * @return An AVCodecContext filled with default values or NULL on failure. |
| 3814 | * @see avcodec_get_context_defaults |
| 3815 | */ |
| 3816 | AVCodecContext *avcodec_alloc_context3(const AVCodec *codec); |
| 3817 | |
| 3818 | /** |
| 3819 | * Free the codec context and everything associated with it and write NULL to |
| 3820 | * the provided pointer. |
| 3821 | */ |
| 3822 | void avcodec_free_context(AVCodecContext **avctx); |
| 3823 | |
| 3824 | /** |
| 3825 | * Set the fields of the given AVCodecContext to default values corresponding |
| 3826 | * to the given codec (defaults may be codec-dependent). |
| 3827 | * |
| 3828 | * Do not call this function if a non-NULL codec has been passed |
| 3829 | * to avcodec_alloc_context3() that allocated this AVCodecContext. |
| 3830 | * If codec is non-NULL, it is illegal to call avcodec_open2() with a |
| 3831 | * different codec on this AVCodecContext. |
| 3832 | */ |
| 3833 | int avcodec_get_context_defaults3(AVCodecContext *s, const AVCodec *codec); |
| 3834 | |
| 3835 | /** |
| 3836 | * Get the AVClass for AVCodecContext. It can be used in combination with |
| 3837 | * AV_OPT_SEARCH_FAKE_OBJ for examining options. |
| 3838 | * |
| 3839 | * @see av_opt_find(). |
| 3840 | */ |
| 3841 | const AVClass *avcodec_get_class(void); |
| 3842 | |
| 3843 | /** |
| 3844 | * Get the AVClass for AVFrame. It can be used in combination with |
| 3845 | * AV_OPT_SEARCH_FAKE_OBJ for examining options. |
| 3846 | * |
| 3847 | * @see av_opt_find(). |
| 3848 | */ |
| 3849 | const AVClass *avcodec_get_frame_class(void); |
| 3850 | |
| 3851 | /** |
| 3852 | * Get the AVClass for AVSubtitleRect. It can be used in combination with |
| 3853 | * AV_OPT_SEARCH_FAKE_OBJ for examining options. |
| 3854 | * |
| 3855 | * @see av_opt_find(). |
| 3856 | */ |
| 3857 | const AVClass *avcodec_get_subtitle_rect_class(void); |
| 3858 | |
| 3859 | /** |
| 3860 | * Copy the settings of the source AVCodecContext into the destination |
| 3861 | * AVCodecContext. The resulting destination codec context will be |
| 3862 | * unopened, i.e. you are required to call avcodec_open2() before you |
| 3863 | * can use this AVCodecContext to decode/encode video/audio data. |
| 3864 | * |
| 3865 | * @param dest target codec context, should be initialized with |
| 3866 | * avcodec_alloc_context3(NULL), but otherwise uninitialized |
| 3867 | * @param src source codec context |
| 3868 | * @return AVERROR() on error (e.g. memory allocation error), 0 on success |
| 3869 | */ |
| 3870 | int avcodec_copy_context(AVCodecContext *dest, const AVCodecContext *src); |
| 3871 | |
| 3872 | /** |
| 3873 | * Initialize the AVCodecContext to use the given AVCodec. Prior to using this |
| 3874 | * function the context has to be allocated with avcodec_alloc_context3(). |
| 3875 | * |
| 3876 | * The functions avcodec_find_decoder_by_name(), avcodec_find_encoder_by_name(), |
| 3877 | * avcodec_find_decoder() and avcodec_find_encoder() provide an easy way for |
| 3878 | * retrieving a codec. |
| 3879 | * |
| 3880 | * @warning This function is not thread safe! |
| 3881 | * |
| 3882 | * @note Always call this function before using decoding routines (such as |
| 3883 | * @ref avcodec_decode_video2()). |
| 3884 | * |
| 3885 | * @code |
| 3886 | * avcodec_register_all(); |
| 3887 | * av_dict_set(&opts, "b", "2.5M", 0); |
| 3888 | * codec = avcodec_find_decoder(AV_CODEC_ID_H264); |
| 3889 | * if (!codec) |
| 3890 | * exit(1); |
| 3891 | * |
| 3892 | * context = avcodec_alloc_context3(codec); |
| 3893 | * |
| 3894 | * if (avcodec_open2(context, codec, opts) < 0) |
| 3895 | * exit(1); |
| 3896 | * @endcode |
| 3897 | * |
| 3898 | * @param avctx The context to initialize. |
| 3899 | * @param codec The codec to open this context for. If a non-NULL codec has been |
| 3900 | * previously passed to avcodec_alloc_context3() or |
| 3901 | * avcodec_get_context_defaults3() for this context, then this |
| 3902 | * parameter MUST be either NULL or equal to the previously passed |
| 3903 | * codec. |
| 3904 | * @param options A dictionary filled with AVCodecContext and codec-private options. |
| 3905 | * On return this object will be filled with options that were not found. |
| 3906 | * |
| 3907 | * @return zero on success, a negative value on error |
| 3908 | * @see avcodec_alloc_context3(), avcodec_find_decoder(), avcodec_find_encoder(), |
| 3909 | * av_dict_set(), av_opt_find(). |
| 3910 | */ |
| 3911 | int avcodec_open2(AVCodecContext *avctx, const AVCodec *codec, AVDictionary **options); |
| 3912 | |
| 3913 | /** |
| 3914 | * Close a given AVCodecContext and free all the data associated with it |
| 3915 | * (but not the AVCodecContext itself). |
| 3916 | * |
| 3917 | * Calling this function on an AVCodecContext that hasn't been opened will free |
| 3918 | * the codec-specific data allocated in avcodec_alloc_context3() / |
| 3919 | * avcodec_get_context_defaults3() with a non-NULL codec. Subsequent calls will |
| 3920 | * do nothing. |
| 3921 | */ |
| 3922 | int avcodec_close(AVCodecContext *avctx); |
| 3923 | |
| 3924 | /** |
| 3925 | * Free all allocated data in the given subtitle struct. |
| 3926 | * |
| 3927 | * @param sub AVSubtitle to free. |
| 3928 | */ |
| 3929 | void avsubtitle_free(AVSubtitle *sub); |
| 3930 | |
| 3931 | /** |
| 3932 | * @} |
| 3933 | */ |
| 3934 | |
| 3935 | /** |
| 3936 | * @addtogroup lavc_packet |
| 3937 | * @{ |
| 3938 | */ |
| 3939 | |
| 3940 | /** |
| 3941 | * Allocate an AVPacket and set its fields to default values. The resulting |
| 3942 | * struct must be freed using av_packet_free(). |
| 3943 | * |
| 3944 | * @return An AVPacket filled with default values or NULL on failure. |
| 3945 | * |
| 3946 | * @note this only allocates the AVPacket itself, not the data buffers. Those |
| 3947 | * must be allocated through other means such as av_new_packet. |
| 3948 | * |
| 3949 | * @see av_new_packet |
| 3950 | */ |
| 3951 | AVPacket *av_packet_alloc(void); |
| 3952 | |
| 3953 | /** |
| 3954 | * Create a new packet that references the same data as src. |
| 3955 | * |
| 3956 | * This is a shortcut for av_packet_alloc()+av_packet_ref(). |
| 3957 | * |
| 3958 | * @return newly created AVPacket on success, NULL on error. |
| 3959 | * |
| 3960 | * @see av_packet_alloc |
| 3961 | * @see av_packet_ref |
| 3962 | */ |
| 3963 | AVPacket *av_packet_clone(AVPacket *src); |
| 3964 | |
| 3965 | /** |
| 3966 | * Free the packet, if the packet is reference counted, it will be |
| 3967 | * unreferenced first. |
| 3968 | * |
| 3969 | * @param packet packet to be freed. The pointer will be set to NULL. |
| 3970 | * @note passing NULL is a no-op. |
| 3971 | */ |
| 3972 | void av_packet_free(AVPacket **pkt); |
| 3973 | |
| 3974 | /** |
| 3975 | * Initialize optional fields of a packet with default values. |
| 3976 | * |
| 3977 | * Note, this does not touch the data and size members, which have to be |
| 3978 | * initialized separately. |
| 3979 | * |
| 3980 | * @param pkt packet |
| 3981 | */ |
| 3982 | void av_init_packet(AVPacket *pkt); |
| 3983 | |
| 3984 | /** |
| 3985 | * Allocate the payload of a packet and initialize its fields with |
| 3986 | * default values. |
| 3987 | * |
| 3988 | * @param pkt packet |
| 3989 | * @param size wanted payload size |
| 3990 | * @return 0 if OK, AVERROR_xxx otherwise |
| 3991 | */ |
| 3992 | int av_new_packet(AVPacket *pkt, int size); |
| 3993 | |
| 3994 | /** |
| 3995 | * Reduce packet size, correctly zeroing padding |
| 3996 | * |
| 3997 | * @param pkt packet |
| 3998 | * @param size new size |
| 3999 | */ |
| 4000 | void av_shrink_packet(AVPacket *pkt, int size); |
| 4001 | |
| 4002 | /** |
| 4003 | * Increase packet size, correctly zeroing padding |
| 4004 | * |
| 4005 | * @param pkt packet |
| 4006 | * @param grow_by number of bytes by which to increase the size of the packet |
| 4007 | */ |
| 4008 | int av_grow_packet(AVPacket *pkt, int grow_by); |
| 4009 | |
| 4010 | /** |
| 4011 | * Initialize a reference-counted packet from av_malloc()ed data. |
| 4012 | * |
| 4013 | * @param pkt packet to be initialized. This function will set the data, size, |
| 4014 | * buf and destruct fields, all others are left untouched. |
| 4015 | * @param data Data allocated by av_malloc() to be used as packet data. If this |
| 4016 | * function returns successfully, the data is owned by the underlying AVBuffer. |
| 4017 | * The caller may not access the data through other means. |
| 4018 | * @param size size of data in bytes, without the padding. I.e. the full buffer |
| 4019 | * size is assumed to be size + AV_INPUT_BUFFER_PADDING_SIZE. |
| 4020 | * |
| 4021 | * @return 0 on success, a negative AVERROR on error |
| 4022 | */ |
| 4023 | int av_packet_from_data(AVPacket *pkt, uint8_t *data, int size); |
| 4024 | |
| 4025 | #if FF_API_AVPACKET_OLD_API(57 < 59) |
| 4026 | /** |
| 4027 | * @warning This is a hack - the packet memory allocation stuff is broken. The |
| 4028 | * packet is allocated if it was not really allocated. |
| 4029 | * |
| 4030 | * @deprecated Use av_packet_ref |
| 4031 | */ |
| 4032 | attribute_deprecated__attribute__((deprecated)) |
| 4033 | int av_dup_packet(AVPacket *pkt); |
| 4034 | /** |
| 4035 | * Copy packet, including contents |
| 4036 | * |
| 4037 | * @return 0 on success, negative AVERROR on fail |
| 4038 | */ |
| 4039 | int av_copy_packet(AVPacket *dst, const AVPacket *src); |
| 4040 | |
| 4041 | /** |
| 4042 | * Copy packet side data |
| 4043 | * |
| 4044 | * @return 0 on success, negative AVERROR on fail |
| 4045 | */ |
| 4046 | int av_copy_packet_side_data(AVPacket *dst, const AVPacket *src); |
| 4047 | |
| 4048 | /** |
| 4049 | * Free a packet. |
| 4050 | * |
| 4051 | * @deprecated Use av_packet_unref |
| 4052 | * |
| 4053 | * @param pkt packet to free |
| 4054 | */ |
| 4055 | attribute_deprecated__attribute__((deprecated)) |
| 4056 | void av_free_packet(AVPacket *pkt); |
| 4057 | #endif |
| 4058 | /** |
| 4059 | * Allocate new information of a packet. |
| 4060 | * |
| 4061 | * @param pkt packet |
| 4062 | * @param type side information type |
| 4063 | * @param size side information size |
| 4064 | * @return pointer to fresh allocated data or NULL otherwise |
| 4065 | */ |
| 4066 | uint8_t* av_packet_new_side_data(AVPacket *pkt, enum AVPacketSideDataType type, |
| 4067 | int size); |
| 4068 | |
| 4069 | /** |
| 4070 | * Wrap an existing array as a packet side data. |
| 4071 | * |
| 4072 | * @param pkt packet |
| 4073 | * @param type side information type |
| 4074 | * @param data the side data array. It must be allocated with the av_malloc() |
| 4075 | * family of functions. The ownership of the data is transferred to |
| 4076 | * pkt. |
| 4077 | * @param size side information size |
| 4078 | * @return a non-negative number on success, a negative AVERROR code on |
| 4079 | * failure. On failure, the packet is unchanged and the data remains |
| 4080 | * owned by the caller. |
| 4081 | */ |
| 4082 | int av_packet_add_side_data(AVPacket *pkt, enum AVPacketSideDataType type, |
| 4083 | uint8_t *data, size_t size); |
| 4084 | |
| 4085 | /** |
| 4086 | * Shrink the already allocated side data buffer |
| 4087 | * |
| 4088 | * @param pkt packet |
| 4089 | * @param type side information type |
| 4090 | * @param size new side information size |
| 4091 | * @return 0 on success, < 0 on failure |
| 4092 | */ |
| 4093 | int av_packet_shrink_side_data(AVPacket *pkt, enum AVPacketSideDataType type, |
| 4094 | int size); |
| 4095 | |
| 4096 | /** |
| 4097 | * Get side information from packet. |
| 4098 | * |
| 4099 | * @param pkt packet |
| 4100 | * @param type desired side information type |
| 4101 | * @param size pointer for side information size to store (optional) |
| 4102 | * @return pointer to data if present or NULL otherwise |
| 4103 | */ |
| 4104 | uint8_t* av_packet_get_side_data(AVPacket *pkt, enum AVPacketSideDataType type, |
| 4105 | int *size); |
| 4106 | |
| 4107 | int av_packet_merge_side_data(AVPacket *pkt); |
| 4108 | |
| 4109 | int av_packet_split_side_data(AVPacket *pkt); |
| 4110 | |
| 4111 | const char *av_packet_side_data_name(enum AVPacketSideDataType type); |
| 4112 | |
| 4113 | /** |
| 4114 | * Pack a dictionary for use in side_data. |
| 4115 | * |
| 4116 | * @param dict The dictionary to pack. |
| 4117 | * @param size pointer to store the size of the returned data |
| 4118 | * @return pointer to data if successful, NULL otherwise |
| 4119 | */ |
| 4120 | uint8_t *av_packet_pack_dictionary(AVDictionary *dict, int *size); |
| 4121 | /** |
| 4122 | * Unpack a dictionary from side_data. |
| 4123 | * |
| 4124 | * @param data data from side_data |
| 4125 | * @param size size of the data |
| 4126 | * @param dict the metadata storage dictionary |
| 4127 | * @return 0 on success, < 0 on failure |
| 4128 | */ |
| 4129 | int av_packet_unpack_dictionary(const uint8_t *data, int size, AVDictionary **dict); |
| 4130 | |
| 4131 | |
| 4132 | /** |
| 4133 | * Convenience function to free all the side data stored. |
| 4134 | * All the other fields stay untouched. |
| 4135 | * |
| 4136 | * @param pkt packet |
| 4137 | */ |
| 4138 | void av_packet_free_side_data(AVPacket *pkt); |
| 4139 | |
| 4140 | /** |
| 4141 | * Setup a new reference to the data described by a given packet |
| 4142 | * |
| 4143 | * If src is reference-counted, setup dst as a new reference to the |
| 4144 | * buffer in src. Otherwise allocate a new buffer in dst and copy the |
| 4145 | * data from src into it. |
| 4146 | * |
| 4147 | * All the other fields are copied from src. |
| 4148 | * |
| 4149 | * @see av_packet_unref |
| 4150 | * |
| 4151 | * @param dst Destination packet |
| 4152 | * @param src Source packet |
| 4153 | * |
| 4154 | * @return 0 on success, a negative AVERROR on error. |
| 4155 | */ |
| 4156 | int av_packet_ref(AVPacket *dst, const AVPacket *src); |
| 4157 | |
| 4158 | /** |
| 4159 | * Wipe the packet. |
| 4160 | * |
| 4161 | * Unreference the buffer referenced by the packet and reset the |
| 4162 | * remaining packet fields to their default values. |
| 4163 | * |
| 4164 | * @param pkt The packet to be unreferenced. |
| 4165 | */ |
| 4166 | void av_packet_unref(AVPacket *pkt); |
| 4167 | |
| 4168 | /** |
| 4169 | * Move every field in src to dst and reset src. |
| 4170 | * |
| 4171 | * @see av_packet_unref |
| 4172 | * |
| 4173 | * @param src Source packet, will be reset |
| 4174 | * @param dst Destination packet |
| 4175 | */ |
| 4176 | void av_packet_move_ref(AVPacket *dst, AVPacket *src); |
| 4177 | |
| 4178 | /** |
| 4179 | * Copy only "properties" fields from src to dst. |
| 4180 | * |
| 4181 | * Properties for the purpose of this function are all the fields |
| 4182 | * beside those related to the packet data (buf, data, size) |
| 4183 | * |
| 4184 | * @param dst Destination packet |
| 4185 | * @param src Source packet |
| 4186 | * |
| 4187 | * @return 0 on success AVERROR on failure. |
| 4188 | * |
| 4189 | */ |
| 4190 | int av_packet_copy_props(AVPacket *dst, const AVPacket *src); |
| 4191 | |
| 4192 | /** |
| 4193 | * Convert valid timing fields (timestamps / durations) in a packet from one |
| 4194 | * timebase to another. Timestamps with unknown values (AV_NOPTS_VALUE) will be |
| 4195 | * ignored. |
| 4196 | * |
| 4197 | * @param pkt packet on which the conversion will be performed |
| 4198 | * @param tb_src source timebase, in which the timing fields in pkt are |
| 4199 | * expressed |
| 4200 | * @param tb_dst destination timebase, to which the timing fields will be |
| 4201 | * converted |
| 4202 | */ |
| 4203 | void av_packet_rescale_ts(AVPacket *pkt, AVRational tb_src, AVRational tb_dst); |
| 4204 | |
| 4205 | /** |
| 4206 | * @} |
| 4207 | */ |
| 4208 | |
| 4209 | /** |
| 4210 | * @addtogroup lavc_decoding |
| 4211 | * @{ |
| 4212 | */ |
| 4213 | |
| 4214 | /** |
| 4215 | * Find a registered decoder with a matching codec ID. |
| 4216 | * |
| 4217 | * @param id AVCodecID of the requested decoder |
| 4218 | * @return A decoder if one was found, NULL otherwise. |
| 4219 | */ |
| 4220 | AVCodec *avcodec_find_decoder(enum AVCodecID id); |
| 4221 | |
| 4222 | /** |
| 4223 | * Find a registered decoder with the specified name. |
| 4224 | * |
| 4225 | * @param name name of the requested decoder |
| 4226 | * @return A decoder if one was found, NULL otherwise. |
| 4227 | */ |
| 4228 | AVCodec *avcodec_find_decoder_by_name(const char *name); |
| 4229 | |
| 4230 | /** |
| 4231 | * The default callback for AVCodecContext.get_buffer2(). It is made public so |
| 4232 | * it can be called by custom get_buffer2() implementations for decoders without |
| 4233 | * AV_CODEC_CAP_DR1 set. |
| 4234 | */ |
| 4235 | int avcodec_default_get_buffer2(AVCodecContext *s, AVFrame *frame, int flags); |
| 4236 | |
| 4237 | #if FF_API_EMU_EDGE(57 < 58) |
| 4238 | /** |
| 4239 | * Return the amount of padding in pixels which the get_buffer callback must |
| 4240 | * provide around the edge of the image for codecs which do not have the |
| 4241 | * CODEC_FLAG_EMU_EDGE flag. |
| 4242 | * |
| 4243 | * @return Required padding in pixels. |
| 4244 | * |
| 4245 | * @deprecated CODEC_FLAG_EMU_EDGE is deprecated, so this function is no longer |
| 4246 | * needed |
| 4247 | */ |
| 4248 | attribute_deprecated__attribute__((deprecated)) |
| 4249 | unsigned avcodec_get_edge_width(void); |
| 4250 | #endif |
| 4251 | |
| 4252 | /** |
| 4253 | * Modify width and height values so that they will result in a memory |
| 4254 | * buffer that is acceptable for the codec if you do not use any horizontal |
| 4255 | * padding. |
| 4256 | * |
| 4257 | * May only be used if a codec with AV_CODEC_CAP_DR1 has been opened. |
| 4258 | */ |
| 4259 | void avcodec_align_dimensions(AVCodecContext *s, int *width, int *height); |
| 4260 | |
| 4261 | /** |
| 4262 | * Modify width and height values so that they will result in a memory |
| 4263 | * buffer that is acceptable for the codec if you also ensure that all |
| 4264 | * line sizes are a multiple of the respective linesize_align[i]. |
| 4265 | * |
| 4266 | * May only be used if a codec with AV_CODEC_CAP_DR1 has been opened. |
| 4267 | */ |
| 4268 | void avcodec_align_dimensions2(AVCodecContext *s, int *width, int *height, |
| 4269 | int linesize_align[AV_NUM_DATA_POINTERS8]); |
| 4270 | |
| 4271 | /** |
| 4272 | * Converts AVChromaLocation to swscale x/y chroma position. |
| 4273 | * |
| 4274 | * The positions represent the chroma (0,0) position in a coordinates system |
| 4275 | * with luma (0,0) representing the origin and luma(1,1) representing 256,256 |
| 4276 | * |
| 4277 | * @param xpos horizontal chroma sample position |
| 4278 | * @param ypos vertical chroma sample position |
| 4279 | */ |
| 4280 | int avcodec_enum_to_chroma_pos(int *xpos, int *ypos, enum AVChromaLocation pos); |
| 4281 | |
| 4282 | /** |
| 4283 | * Converts swscale x/y chroma position to AVChromaLocation. |
| 4284 | * |
| 4285 | * The positions represent the chroma (0,0) position in a coordinates system |
| 4286 | * with luma (0,0) representing the origin and luma(1,1) representing 256,256 |
| 4287 | * |
| 4288 | * @param xpos horizontal chroma sample position |
| 4289 | * @param ypos vertical chroma sample position |
| 4290 | */ |
| 4291 | enum AVChromaLocation avcodec_chroma_pos_to_enum(int xpos, int ypos); |
| 4292 | |
| 4293 | /** |
| 4294 | * Decode the audio frame of size avpkt->size from avpkt->data into frame. |
| 4295 | * |
| 4296 | * Some decoders may support multiple frames in a single AVPacket. Such |
| 4297 | * decoders would then just decode the first frame and the return value would be |
| 4298 | * less than the packet size. In this case, avcodec_decode_audio4 has to be |
| 4299 | * called again with an AVPacket containing the remaining data in order to |
| 4300 | * decode the second frame, etc... Even if no frames are returned, the packet |
| 4301 | * needs to be fed to the decoder with remaining data until it is completely |
| 4302 | * consumed or an error occurs. |
| 4303 | * |
| 4304 | * Some decoders (those marked with AV_CODEC_CAP_DELAY) have a delay between input |
| 4305 | * and output. This means that for some packets they will not immediately |
| 4306 | * produce decoded output and need to be flushed at the end of decoding to get |
| 4307 | * all the decoded data. Flushing is done by calling this function with packets |
| 4308 | * with avpkt->data set to NULL and avpkt->size set to 0 until it stops |
| 4309 | * returning samples. It is safe to flush even those decoders that are not |
| 4310 | * marked with AV_CODEC_CAP_DELAY, then no samples will be returned. |
| 4311 | * |
| 4312 | * @warning The input buffer, avpkt->data must be AV_INPUT_BUFFER_PADDING_SIZE |
| 4313 | * larger than the actual read bytes because some optimized bitstream |
| 4314 | * readers read 32 or 64 bits at once and could read over the end. |
| 4315 | * |
| 4316 | * @note The AVCodecContext MUST have been opened with @ref avcodec_open2() |
| 4317 | * before packets may be fed to the decoder. |
| 4318 | * |
| 4319 | * @param avctx the codec context |
| 4320 | * @param[out] frame The AVFrame in which to store decoded audio samples. |
| 4321 | * The decoder will allocate a buffer for the decoded frame by |
| 4322 | * calling the AVCodecContext.get_buffer2() callback. |
| 4323 | * When AVCodecContext.refcounted_frames is set to 1, the frame is |
| 4324 | * reference counted and the returned reference belongs to the |
| 4325 | * caller. The caller must release the frame using av_frame_unref() |
| 4326 | * when the frame is no longer needed. The caller may safely write |
| 4327 | * to the frame if av_frame_is_writable() returns 1. |
| 4328 | * When AVCodecContext.refcounted_frames is set to 0, the returned |
| 4329 | * reference belongs to the decoder and is valid only until the |
| 4330 | * next call to this function or until closing or flushing the |
| 4331 | * decoder. The caller may not write to it. |
| 4332 | * @param[out] got_frame_ptr Zero if no frame could be decoded, otherwise it is |
| 4333 | * non-zero. Note that this field being set to zero |
| 4334 | * does not mean that an error has occurred. For |
| 4335 | * decoders with AV_CODEC_CAP_DELAY set, no given decode |
| 4336 | * call is guaranteed to produce a frame. |
| 4337 | * @param[in] avpkt The input AVPacket containing the input buffer. |
| 4338 | * At least avpkt->data and avpkt->size should be set. Some |
| 4339 | * decoders might also require additional fields to be set. |
| 4340 | * @return A negative error code is returned if an error occurred during |
| 4341 | * decoding, otherwise the number of bytes consumed from the input |
| 4342 | * AVPacket is returned. |
| 4343 | */ |
| 4344 | int avcodec_decode_audio4(AVCodecContext *avctx, AVFrame *frame, |
| 4345 | int *got_frame_ptr, const AVPacket *avpkt); |
| 4346 | |
| 4347 | /** |
| 4348 | * Decode the video frame of size avpkt->size from avpkt->data into picture. |
| 4349 | * Some decoders may support multiple frames in a single AVPacket, such |
| 4350 | * decoders would then just decode the first frame. |
| 4351 | * |
| 4352 | * @warning The input buffer must be AV_INPUT_BUFFER_PADDING_SIZE larger than |
| 4353 | * the actual read bytes because some optimized bitstream readers read 32 or 64 |
| 4354 | * bits at once and could read over the end. |
| 4355 | * |
| 4356 | * @warning The end of the input buffer buf should be set to 0 to ensure that |
| 4357 | * no overreading happens for damaged MPEG streams. |
| 4358 | * |
| 4359 | * @note Codecs which have the AV_CODEC_CAP_DELAY capability set have a delay |
| 4360 | * between input and output, these need to be fed with avpkt->data=NULL, |
| 4361 | * avpkt->size=0 at the end to return the remaining frames. |
| 4362 | * |
| 4363 | * @note The AVCodecContext MUST have been opened with @ref avcodec_open2() |
| 4364 | * before packets may be fed to the decoder. |
| 4365 | * |
| 4366 | * @param avctx the codec context |
| 4367 | * @param[out] picture The AVFrame in which the decoded video frame will be stored. |
| 4368 | * Use av_frame_alloc() to get an AVFrame. The codec will |
| 4369 | * allocate memory for the actual bitmap by calling the |
| 4370 | * AVCodecContext.get_buffer2() callback. |
| 4371 | * When AVCodecContext.refcounted_frames is set to 1, the frame is |
| 4372 | * reference counted and the returned reference belongs to the |
| 4373 | * caller. The caller must release the frame using av_frame_unref() |
| 4374 | * when the frame is no longer needed. The caller may safely write |
| 4375 | * to the frame if av_frame_is_writable() returns 1. |
| 4376 | * When AVCodecContext.refcounted_frames is set to 0, the returned |
| 4377 | * reference belongs to the decoder and is valid only until the |
| 4378 | * next call to this function or until closing or flushing the |
| 4379 | * decoder. The caller may not write to it. |
| 4380 | * |
| 4381 | * @param[in] avpkt The input AVPacket containing the input buffer. |
| 4382 | * You can create such packet with av_init_packet() and by then setting |
| 4383 | * data and size, some decoders might in addition need other fields like |
| 4384 | * flags&AV_PKT_FLAG_KEY. All decoders are designed to use the least |
| 4385 | * fields possible. |
| 4386 | * @param[in,out] got_picture_ptr Zero if no frame could be decompressed, otherwise, it is nonzero. |
| 4387 | * @return On error a negative value is returned, otherwise the number of bytes |
| 4388 | * used or zero if no frame could be decompressed. |
| 4389 | */ |
| 4390 | int avcodec_decode_video2(AVCodecContext *avctx, AVFrame *picture, |
| 4391 | int *got_picture_ptr, |
| 4392 | const AVPacket *avpkt); |
| 4393 | |
| 4394 | /** |
| 4395 | * Decode a subtitle message. |
| 4396 | * Return a negative value on error, otherwise return the number of bytes used. |
| 4397 | * If no subtitle could be decompressed, got_sub_ptr is zero. |
| 4398 | * Otherwise, the subtitle is stored in *sub. |
| 4399 | * Note that AV_CODEC_CAP_DR1 is not available for subtitle codecs. This is for |
| 4400 | * simplicity, because the performance difference is expect to be negligible |
| 4401 | * and reusing a get_buffer written for video codecs would probably perform badly |
| 4402 | * due to a potentially very different allocation pattern. |
| 4403 | * |
| 4404 | * Some decoders (those marked with CODEC_CAP_DELAY) have a delay between input |
| 4405 | * and output. This means that for some packets they will not immediately |
| 4406 | * produce decoded output and need to be flushed at the end of decoding to get |
| 4407 | * all the decoded data. Flushing is done by calling this function with packets |
| 4408 | * with avpkt->data set to NULL and avpkt->size set to 0 until it stops |
| 4409 | * returning subtitles. It is safe to flush even those decoders that are not |
| 4410 | * marked with CODEC_CAP_DELAY, then no subtitles will be returned. |
| 4411 | * |
| 4412 | * @note The AVCodecContext MUST have been opened with @ref avcodec_open2() |
| 4413 | * before packets may be fed to the decoder. |
| 4414 | * |
| 4415 | * @param avctx the codec context |
| 4416 | * @param[out] sub The Preallocated AVSubtitle in which the decoded subtitle will be stored, |
| 4417 | * must be freed with avsubtitle_free if *got_sub_ptr is set. |
| 4418 | * @param[in,out] got_sub_ptr Zero if no subtitle could be decompressed, otherwise, it is nonzero. |
| 4419 | * @param[in] avpkt The input AVPacket containing the input buffer. |
| 4420 | */ |
| 4421 | int avcodec_decode_subtitle2(AVCodecContext *avctx, AVSubtitle *sub, |
| 4422 | int *got_sub_ptr, |
| 4423 | AVPacket *avpkt); |
| 4424 | |
| 4425 | /** |
| 4426 | * @defgroup lavc_parsing Frame parsing |
| 4427 | * @{ |
| 4428 | */ |
| 4429 | |
| 4430 | enum AVPictureStructure { |
| 4431 | AV_PICTURE_STRUCTURE_UNKNOWN, //< unknown |
| 4432 | AV_PICTURE_STRUCTURE_TOP_FIELD, //< coded as top field |
| 4433 | AV_PICTURE_STRUCTURE_BOTTOM_FIELD, //< coded as bottom field |
| 4434 | AV_PICTURE_STRUCTURE_FRAME, //< coded as frame |
| 4435 | }; |
| 4436 | |
| 4437 | typedef struct AVCodecParserContext { |
| 4438 | void *priv_data; |
| 4439 | struct AVCodecParser *parser; |
| 4440 | int64_t frame_offset; /* offset of the current frame */ |
| 4441 | int64_t cur_offset; /* current offset |
| 4442 | (incremented by each av_parser_parse()) */ |
| 4443 | int64_t next_frame_offset; /* offset of the next frame */ |
| 4444 | /* video info */ |
| 4445 | int pict_type; /* XXX: Put it back in AVCodecContext. */ |
| 4446 | /** |
| 4447 | * This field is used for proper frame duration computation in lavf. |
| 4448 | * It signals, how much longer the frame duration of the current frame |
| 4449 | * is compared to normal frame duration. |
| 4450 | * |
| 4451 | * frame_duration = (1 + repeat_pict) * time_base |
| 4452 | * |
| 4453 | * It is used by codecs like H.264 to display telecined material. |
| 4454 | */ |
| 4455 | int repeat_pict; /* XXX: Put it back in AVCodecContext. */ |
| 4456 | int64_t pts; /* pts of the current frame */ |
| 4457 | int64_t dts; /* dts of the current frame */ |
| 4458 | |
| 4459 | /* private data */ |
| 4460 | int64_t last_pts; |
| 4461 | int64_t last_dts; |
| 4462 | int fetch_timestamp; |
| 4463 | |
| 4464 | #define AV_PARSER_PTS_NB4 4 |
| 4465 | int cur_frame_start_index; |
| 4466 | int64_t cur_frame_offset[AV_PARSER_PTS_NB4]; |
| 4467 | int64_t cur_frame_pts[AV_PARSER_PTS_NB4]; |
| 4468 | int64_t cur_frame_dts[AV_PARSER_PTS_NB4]; |
| 4469 | |
| 4470 | int flags; |
| 4471 | #define PARSER_FLAG_COMPLETE_FRAMES0x0001 0x0001 |
| 4472 | #define PARSER_FLAG_ONCE0x0002 0x0002 |
| 4473 | /// Set if the parser has a valid file offset |
| 4474 | #define PARSER_FLAG_FETCHED_OFFSET0x0004 0x0004 |
| 4475 | #define PARSER_FLAG_USE_CODEC_TS0x1000 0x1000 |
| 4476 | |
| 4477 | int64_t offset; ///< byte offset from starting packet start |
| 4478 | int64_t cur_frame_end[AV_PARSER_PTS_NB4]; |
| 4479 | |
| 4480 | /** |
| 4481 | * Set by parser to 1 for key frames and 0 for non-key frames. |
| 4482 | * It is initialized to -1, so if the parser doesn't set this flag, |
| 4483 | * old-style fallback using AV_PICTURE_TYPE_I picture type as key frames |
| 4484 | * will be used. |
| 4485 | */ |
| 4486 | int key_frame; |
| 4487 | |
| 4488 | #if FF_API_CONVERGENCE_DURATION(57 < 59) |
| 4489 | /** |
| 4490 | * @deprecated unused |
| 4491 | */ |
| 4492 | attribute_deprecated__attribute__((deprecated)) |
| 4493 | int64_t convergence_duration; |
| 4494 | #endif |
| 4495 | |
| 4496 | // Timestamp generation support: |
| 4497 | /** |
| 4498 | * Synchronization point for start of timestamp generation. |
| 4499 | * |
| 4500 | * Set to >0 for sync point, 0 for no sync point and <0 for undefined |
| 4501 | * (default). |
| 4502 | * |
| 4503 | * For example, this corresponds to presence of H.264 buffering period |
| 4504 | * SEI message. |
| 4505 | */ |
| 4506 | int dts_sync_point; |
| 4507 | |
| 4508 | /** |
| 4509 | * Offset of the current timestamp against last timestamp sync point in |
| 4510 | * units of AVCodecContext.time_base. |
| 4511 | * |
| 4512 | * Set to INT_MIN when dts_sync_point unused. Otherwise, it must |
| 4513 | * contain a valid timestamp offset. |
| 4514 | * |
| 4515 | * Note that the timestamp of sync point has usually a nonzero |
| 4516 | * dts_ref_dts_delta, which refers to the previous sync point. Offset of |
| 4517 | * the next frame after timestamp sync point will be usually 1. |
| 4518 | * |
| 4519 | * For example, this corresponds to H.264 cpb_removal_delay. |
| 4520 | */ |
| 4521 | int dts_ref_dts_delta; |
| 4522 | |
| 4523 | /** |
| 4524 | * Presentation delay of current frame in units of AVCodecContext.time_base. |
| 4525 | * |
| 4526 | * Set to INT_MIN when dts_sync_point unused. Otherwise, it must |
| 4527 | * contain valid non-negative timestamp delta (presentation time of a frame |
| 4528 | * must not lie in the past). |
| 4529 | * |
| 4530 | * This delay represents the difference between decoding and presentation |
| 4531 | * time of the frame. |
| 4532 | * |
| 4533 | * For example, this corresponds to H.264 dpb_output_delay. |
| 4534 | */ |
| 4535 | int pts_dts_delta; |
| 4536 | |
| 4537 | /** |
| 4538 | * Position of the packet in file. |
| 4539 | * |
| 4540 | * Analogous to cur_frame_pts/dts |
| 4541 | */ |
| 4542 | int64_t cur_frame_pos[AV_PARSER_PTS_NB4]; |
| 4543 | |
| 4544 | /** |
| 4545 | * Byte position of currently parsed frame in stream. |
| 4546 | */ |
| 4547 | int64_t pos; |
| 4548 | |
| 4549 | /** |
| 4550 | * Previous frame byte position. |
| 4551 | */ |
| 4552 | int64_t last_pos; |
| 4553 | |
| 4554 | /** |
| 4555 | * Duration of the current frame. |
| 4556 | * For audio, this is in units of 1 / AVCodecContext.sample_rate. |
| 4557 | * For all other types, this is in units of AVCodecContext.time_base. |
| 4558 | */ |
| 4559 | int duration; |
| 4560 | |
| 4561 | enum AVFieldOrder field_order; |
| 4562 | |
| 4563 | /** |
| 4564 | * Indicate whether a picture is coded as a frame, top field or bottom field. |
| 4565 | * |
| 4566 | * For example, H.264 field_pic_flag equal to 0 corresponds to |
| 4567 | * AV_PICTURE_STRUCTURE_FRAME. An H.264 picture with field_pic_flag |
| 4568 | * equal to 1 and bottom_field_flag equal to 0 corresponds to |
| 4569 | * AV_PICTURE_STRUCTURE_TOP_FIELD. |
| 4570 | */ |
| 4571 | enum AVPictureStructure picture_structure; |
| 4572 | |
| 4573 | /** |
| 4574 | * Picture number incremented in presentation or output order. |
| 4575 | * This field may be reinitialized at the first picture of a new sequence. |
| 4576 | * |
| 4577 | * For example, this corresponds to H.264 PicOrderCnt. |
| 4578 | */ |
| 4579 | int output_picture_number; |
| 4580 | |
| 4581 | /** |
| 4582 | * Dimensions of the decoded video intended for presentation. |
| 4583 | */ |
| 4584 | int width; |
| 4585 | int height; |
| 4586 | |
| 4587 | /** |
| 4588 | * Dimensions of the coded video. |
| 4589 | */ |
| 4590 | int coded_width; |
| 4591 | int coded_height; |
| 4592 | |
| 4593 | /** |
| 4594 | * The format of the coded data, corresponds to enum AVPixelFormat for video |
| 4595 | * and for enum AVSampleFormat for audio. |
| 4596 | * |
| 4597 | * Note that a decoder can have considerable freedom in how exactly it |
| 4598 | * decodes the data, so the format reported here might be different from the |
| 4599 | * one returned by a decoder. |
| 4600 | */ |
| 4601 | int format; |
| 4602 | } AVCodecParserContext; |
| 4603 | |
| 4604 | typedef struct AVCodecParser { |
| 4605 | int codec_ids[5]; /* several codec IDs are permitted */ |
| 4606 | int priv_data_size; |
| 4607 | int (*parser_init)(AVCodecParserContext *s); |
| 4608 | /* This callback never returns an error, a negative value means that |
| 4609 | * the frame start was in a previous packet. */ |
| 4610 | int (*parser_parse)(AVCodecParserContext *s, |
| 4611 | AVCodecContext *avctx, |
| 4612 | const uint8_t **poutbuf, int *poutbuf_size, |
| 4613 | const uint8_t *buf, int buf_size); |
| 4614 | void (*parser_close)(AVCodecParserContext *s); |
| 4615 | int (*split)(AVCodecContext *avctx, const uint8_t *buf, int buf_size); |
| 4616 | struct AVCodecParser *next; |
| 4617 | } AVCodecParser; |
| 4618 | |
| 4619 | AVCodecParser *av_parser_next(const AVCodecParser *c); |
| 4620 | |
| 4621 | void av_register_codec_parser(AVCodecParser *parser); |
| 4622 | AVCodecParserContext *av_parser_init(int codec_id); |
| 4623 | |
| 4624 | /** |
| 4625 | * Parse a packet. |
| 4626 | * |
| 4627 | * @param s parser context. |
| 4628 | * @param avctx codec context. |
| 4629 | * @param poutbuf set to pointer to parsed buffer or NULL if not yet finished. |
| 4630 | * @param poutbuf_size set to size of parsed buffer or zero if not yet finished. |
| 4631 | * @param buf input buffer. |
| 4632 | * @param buf_size input length, to signal EOF, this should be 0 (so that the last frame can be output). |
| 4633 | * @param pts input presentation timestamp. |
| 4634 | * @param dts input decoding timestamp. |
| 4635 | * @param pos input byte position in stream. |
| 4636 | * @return the number of bytes of the input bitstream used. |
| 4637 | * |
| 4638 | * Example: |
| 4639 | * @code |
| 4640 | * while(in_len){ |
| 4641 | * len = av_parser_parse2(myparser, AVCodecContext, &data, &size, |
| 4642 | * in_data, in_len, |
| 4643 | * pts, dts, pos); |
| 4644 | * in_data += len; |
| 4645 | * in_len -= len; |
| 4646 | * |
| 4647 | * if(size) |
| 4648 | * decode_frame(data, size); |
| 4649 | * } |
| 4650 | * @endcode |
| 4651 | */ |
| 4652 | int av_parser_parse2(AVCodecParserContext *s, |
| 4653 | AVCodecContext *avctx, |
| 4654 | uint8_t **poutbuf, int *poutbuf_size, |
| 4655 | const uint8_t *buf, int buf_size, |
| 4656 | int64_t pts, int64_t dts, |
| 4657 | int64_t pos); |
| 4658 | |
| 4659 | /** |
| 4660 | * @return 0 if the output buffer is a subset of the input, 1 if it is allocated and must be freed |
| 4661 | * @deprecated use AVBitStreamFilter |
| 4662 | */ |
| 4663 | int av_parser_change(AVCodecParserContext *s, |
| 4664 | AVCodecContext *avctx, |
| 4665 | uint8_t **poutbuf, int *poutbuf_size, |
| 4666 | const uint8_t *buf, int buf_size, int keyframe); |
| 4667 | void av_parser_close(AVCodecParserContext *s); |
| 4668 | |
| 4669 | /** |
| 4670 | * @} |
| 4671 | * @} |
| 4672 | */ |
| 4673 | |
| 4674 | /** |
| 4675 | * @addtogroup lavc_encoding |
| 4676 | * @{ |
| 4677 | */ |
| 4678 | |
| 4679 | /** |
| 4680 | * Find a registered encoder with a matching codec ID. |
| 4681 | * |
| 4682 | * @param id AVCodecID of the requested encoder |
| 4683 | * @return An encoder if one was found, NULL otherwise. |
| 4684 | */ |
| 4685 | AVCodec *avcodec_find_encoder(enum AVCodecID id); |
| 4686 | |
| 4687 | /** |
| 4688 | * Find a registered encoder with the specified name. |
| 4689 | * |
| 4690 | * @param name name of the requested encoder |
| 4691 | * @return An encoder if one was found, NULL otherwise. |
| 4692 | */ |
| 4693 | AVCodec *avcodec_find_encoder_by_name(const char *name); |
| 4694 | |
| 4695 | /** |
| 4696 | * Encode a frame of audio. |
| 4697 | * |
| 4698 | * Takes input samples from frame and writes the next output packet, if |
| 4699 | * available, to avpkt. The output packet does not necessarily contain data for |
| 4700 | * the most recent frame, as encoders can delay, split, and combine input frames |
| 4701 | * internally as needed. |
| 4702 | * |
| 4703 | * @param avctx codec context |
| 4704 | * @param avpkt output AVPacket. |
| 4705 | * The user can supply an output buffer by setting |
| 4706 | * avpkt->data and avpkt->size prior to calling the |
| 4707 | * function, but if the size of the user-provided data is not |
| 4708 | * large enough, encoding will fail. If avpkt->data and |
| 4709 | * avpkt->size are set, avpkt->destruct must also be set. All |
| 4710 | * other AVPacket fields will be reset by the encoder using |
| 4711 | * av_init_packet(). If avpkt->data is NULL, the encoder will |
| 4712 | * allocate it. The encoder will set avpkt->size to the size |
| 4713 | * of the output packet. |
| 4714 | * |
| 4715 | * If this function fails or produces no output, avpkt will be |
| 4716 | * freed using av_packet_unref(). |
| 4717 | * @param[in] frame AVFrame containing the raw audio data to be encoded. |
| 4718 | * May be NULL when flushing an encoder that has the |
| 4719 | * AV_CODEC_CAP_DELAY capability set. |
| 4720 | * If AV_CODEC_CAP_VARIABLE_FRAME_SIZE is set, then each frame |
| 4721 | * can have any number of samples. |
| 4722 | * If it is not set, frame->nb_samples must be equal to |
| 4723 | * avctx->frame_size for all frames except the last. |
| 4724 | * The final frame may be smaller than avctx->frame_size. |
| 4725 | * @param[out] got_packet_ptr This field is set to 1 by libavcodec if the |
| 4726 | * output packet is non-empty, and to 0 if it is |
| 4727 | * empty. If the function returns an error, the |
| 4728 | * packet can be assumed to be invalid, and the |
| 4729 | * value of got_packet_ptr is undefined and should |
| 4730 | * not be used. |
| 4731 | * @return 0 on success, negative error code on failure |
| 4732 | */ |
| 4733 | int avcodec_encode_audio2(AVCodecContext *avctx, AVPacket *avpkt, |
| 4734 | const AVFrame *frame, int *got_packet_ptr); |
| 4735 | |
| 4736 | /** |
| 4737 | * Encode a frame of video. |
| 4738 | * |
| 4739 | * Takes input raw video data from frame and writes the next output packet, if |
| 4740 | * available, to avpkt. The output packet does not necessarily contain data for |
| 4741 | * the most recent frame, as encoders can delay and reorder input frames |
| 4742 | * internally as needed. |
| 4743 | * |
| 4744 | * @param avctx codec context |
| 4745 | * @param avpkt output AVPacket. |
| 4746 | * The user can supply an output buffer by setting |
| 4747 | * avpkt->data and avpkt->size prior to calling the |
| 4748 | * function, but if the size of the user-provided data is not |
| 4749 | * large enough, encoding will fail. All other AVPacket fields |
| 4750 | * will be reset by the encoder using av_init_packet(). If |
| 4751 | * avpkt->data is NULL, the encoder will allocate it. |
| 4752 | * The encoder will set avpkt->size to the size of the |
| 4753 | * output packet. The returned data (if any) belongs to the |
| 4754 | * caller, he is responsible for freeing it. |
| 4755 | * |
| 4756 | * If this function fails or produces no output, avpkt will be |
| 4757 | * freed using av_packet_unref(). |
| 4758 | * @param[in] frame AVFrame containing the raw video data to be encoded. |
| 4759 | * May be NULL when flushing an encoder that has the |
| 4760 | * AV_CODEC_CAP_DELAY capability set. |
| 4761 | * @param[out] got_packet_ptr This field is set to 1 by libavcodec if the |
| 4762 | * output packet is non-empty, and to 0 if it is |
| 4763 | * empty. If the function returns an error, the |
| 4764 | * packet can be assumed to be invalid, and the |
| 4765 | * value of got_packet_ptr is undefined and should |
| 4766 | * not be used. |
| 4767 | * @return 0 on success, negative error code on failure |
| 4768 | */ |
| 4769 | int avcodec_encode_video2(AVCodecContext *avctx, AVPacket *avpkt, |
| 4770 | const AVFrame *frame, int *got_packet_ptr); |
| 4771 | |
| 4772 | int avcodec_encode_subtitle(AVCodecContext *avctx, uint8_t *buf, int buf_size, |
| 4773 | const AVSubtitle *sub); |
| 4774 | |
| 4775 | |
| 4776 | /** |
| 4777 | * @} |
| 4778 | */ |
| 4779 | |
| 4780 | #if FF_API_AVCODEC_RESAMPLE(57 < 58) |
| 4781 | /** |
| 4782 | * @defgroup lavc_resample Audio resampling |
| 4783 | * @ingroup libavc |
| 4784 | * @deprecated use libswresample instead |
| 4785 | * |
| 4786 | * @{ |
| 4787 | */ |
| 4788 | struct ReSampleContext; |
| 4789 | struct AVResampleContext; |
| 4790 | |
| 4791 | typedef struct ReSampleContext ReSampleContext; |
| 4792 | |
| 4793 | /** |
| 4794 | * Initialize audio resampling context. |
| 4795 | * |
| 4796 | * @param output_channels number of output channels |
| 4797 | * @param input_channels number of input channels |
| 4798 | * @param output_rate output sample rate |
| 4799 | * @param input_rate input sample rate |
| 4800 | * @param sample_fmt_out requested output sample format |
| 4801 | * @param sample_fmt_in input sample format |
| 4802 | * @param filter_length length of each FIR filter in the filterbank relative to the cutoff frequency |
| 4803 | * @param log2_phase_count log2 of the number of entries in the polyphase filterbank |
| 4804 | * @param linear if 1 then the used FIR filter will be linearly interpolated |
| 4805 | between the 2 closest, if 0 the closest will be used |
| 4806 | * @param cutoff cutoff frequency, 1.0 corresponds to half the output sampling rate |
| 4807 | * @return allocated ReSampleContext, NULL if error occurred |
| 4808 | */ |
| 4809 | attribute_deprecated__attribute__((deprecated)) |
| 4810 | ReSampleContext *av_audio_resample_init(int output_channels, int input_channels, |
| 4811 | int output_rate, int input_rate, |
| 4812 | enum AVSampleFormat sample_fmt_out, |
| 4813 | enum AVSampleFormat sample_fmt_in, |
| 4814 | int filter_length, int log2_phase_count, |
| 4815 | int linear, double cutoff); |
| 4816 | |
| 4817 | attribute_deprecated__attribute__((deprecated)) |
| 4818 | int audio_resample(ReSampleContext *s, short *output, short *input, int nb_samples); |
| 4819 | |
| 4820 | /** |
| 4821 | * Free resample context. |
| 4822 | * |
| 4823 | * @param s a non-NULL pointer to a resample context previously |
| 4824 | * created with av_audio_resample_init() |
| 4825 | */ |
| 4826 | attribute_deprecated__attribute__((deprecated)) |
| 4827 | void audio_resample_close(ReSampleContext *s); |
| 4828 | |
| 4829 | |
| 4830 | /** |
| 4831 | * Initialize an audio resampler. |
| 4832 | * Note, if either rate is not an integer then simply scale both rates up so they are. |
| 4833 | * @param filter_length length of each FIR filter in the filterbank relative to the cutoff freq |
| 4834 | * @param log2_phase_count log2 of the number of entries in the polyphase filterbank |
| 4835 | * @param linear If 1 then the used FIR filter will be linearly interpolated |
| 4836 | between the 2 closest, if 0 the closest will be used |
| 4837 | * @param cutoff cutoff frequency, 1.0 corresponds to half the output sampling rate |
| 4838 | */ |
| 4839 | attribute_deprecated__attribute__((deprecated)) |
| 4840 | struct AVResampleContext *av_resample_init(int out_rate, int in_rate, int filter_length, int log2_phase_count, int linear, double cutoff); |
| 4841 | |
| 4842 | /** |
| 4843 | * Resample an array of samples using a previously configured context. |
| 4844 | * @param src an array of unconsumed samples |
| 4845 | * @param consumed the number of samples of src which have been consumed are returned here |
| 4846 | * @param src_size the number of unconsumed samples available |
| 4847 | * @param dst_size the amount of space in samples available in dst |
| 4848 | * @param update_ctx If this is 0 then the context will not be modified, that way several channels can be resampled with the same context. |
| 4849 | * @return the number of samples written in dst or -1 if an error occurred |
| 4850 | */ |
| 4851 | attribute_deprecated__attribute__((deprecated)) |
| 4852 | int av_resample(struct AVResampleContext *c, short *dst, short *src, int *consumed, int src_size, int dst_size, int update_ctx); |
| 4853 | |
| 4854 | |
| 4855 | /** |
| 4856 | * Compensate samplerate/timestamp drift. The compensation is done by changing |
| 4857 | * the resampler parameters, so no audible clicks or similar distortions occur |
| 4858 | * @param compensation_distance distance in output samples over which the compensation should be performed |
| 4859 | * @param sample_delta number of output samples which should be output less |
| 4860 | * |
| 4861 | * example: av_resample_compensate(c, 10, 500) |
| 4862 | * here instead of 510 samples only 500 samples would be output |
| 4863 | * |
| 4864 | * note, due to rounding the actual compensation might be slightly different, |
| 4865 | * especially if the compensation_distance is large and the in_rate used during init is small |
| 4866 | */ |
| 4867 | attribute_deprecated__attribute__((deprecated)) |
| 4868 | void av_resample_compensate(struct AVResampleContext *c, int sample_delta, int compensation_distance); |
| 4869 | attribute_deprecated__attribute__((deprecated)) |
| 4870 | void av_resample_close(struct AVResampleContext *c); |
| 4871 | |
| 4872 | /** |
| 4873 | * @} |
| 4874 | */ |
| 4875 | #endif |
| 4876 | |
| 4877 | #if FF_API_AVPICTURE(57 < 59) |
| 4878 | /** |
| 4879 | * @addtogroup lavc_picture |
| 4880 | * @{ |
| 4881 | */ |
| 4882 | |
| 4883 | /** |
| 4884 | * @deprecated unused |
| 4885 | */ |
| 4886 | attribute_deprecated__attribute__((deprecated)) |
| 4887 | int avpicture_alloc(AVPicture *picture, enum AVPixelFormat pix_fmt, int width, int height); |
| 4888 | |
| 4889 | /** |
| 4890 | * @deprecated unused |
| 4891 | */ |
| 4892 | attribute_deprecated__attribute__((deprecated)) |
| 4893 | void avpicture_free(AVPicture *picture); |
| 4894 | |
| 4895 | /** |
| 4896 | * @deprecated use av_image_fill_arrays() instead. |
| 4897 | */ |
| 4898 | attribute_deprecated__attribute__((deprecated)) |
| 4899 | int avpicture_fill(AVPicture *picture, const uint8_t *ptr, |
| 4900 | enum AVPixelFormat pix_fmt, int width, int height); |
| 4901 | |
| 4902 | /** |
| 4903 | * @deprecated use av_image_copy_to_buffer() instead. |
| 4904 | */ |
| 4905 | attribute_deprecated__attribute__((deprecated)) |
| 4906 | int avpicture_layout(const AVPicture *src, enum AVPixelFormat pix_fmt, |
| 4907 | int width, int height, |
| 4908 | unsigned char *dest, int dest_size); |
| 4909 | |
| 4910 | /** |
| 4911 | * @deprecated use av_image_get_buffer_size() instead. |
| 4912 | */ |
| 4913 | attribute_deprecated__attribute__((deprecated)) |
| 4914 | int avpicture_get_size(enum AVPixelFormat pix_fmt, int width, int height); |
| 4915 | |
| 4916 | /** |
| 4917 | * @deprecated av_image_copy() instead. |
| 4918 | */ |
| 4919 | attribute_deprecated__attribute__((deprecated)) |
| 4920 | void av_picture_copy(AVPicture *dst, const AVPicture *src, |
| 4921 | enum AVPixelFormat pix_fmt, int width, int height); |
| 4922 | |
| 4923 | /** |
| 4924 | * @deprecated unused |
| 4925 | */ |
| 4926 | attribute_deprecated__attribute__((deprecated)) |
| 4927 | int av_picture_crop(AVPicture *dst, const AVPicture *src, |
| 4928 | enum AVPixelFormat pix_fmt, int top_band, int left_band); |
| 4929 | |
| 4930 | /** |
| 4931 | * @deprecated unused |
| 4932 | */ |
| 4933 | attribute_deprecated__attribute__((deprecated)) |
| 4934 | int av_picture_pad(AVPicture *dst, const AVPicture *src, int height, int width, enum AVPixelFormat pix_fmt, |
| 4935 | int padtop, int padbottom, int padleft, int padright, int *color); |
| 4936 | |
| 4937 | /** |
| 4938 | * @} |
| 4939 | */ |
| 4940 | #endif |
| 4941 | |
| 4942 | /** |
| 4943 | * @defgroup lavc_misc Utility functions |
| 4944 | * @ingroup libavc |
| 4945 | * |
| 4946 | * Miscellaneous utility functions related to both encoding and decoding |
| 4947 | * (or neither). |
| 4948 | * @{ |
| 4949 | */ |
| 4950 | |
| 4951 | /** |
| 4952 | * @defgroup lavc_misc_pixfmt Pixel formats |
| 4953 | * |
| 4954 | * Functions for working with pixel formats. |
| 4955 | * @{ |
| 4956 | */ |
| 4957 | |
| 4958 | /** |
| 4959 | * Utility function to access log2_chroma_w log2_chroma_h from |
| 4960 | * the pixel format AVPixFmtDescriptor. |
| 4961 | * |
| 4962 | * This function asserts that pix_fmt is valid. See av_pix_fmt_get_chroma_sub_sample |
| 4963 | * for one that returns a failure code and continues in case of invalid |
| 4964 | * pix_fmts. |
| 4965 | * |
| 4966 | * @param[in] pix_fmt the pixel format |
| 4967 | * @param[out] h_shift store log2_chroma_w |
| 4968 | * @param[out] v_shift store log2_chroma_h |
| 4969 | * |
| 4970 | * @see av_pix_fmt_get_chroma_sub_sample |
| 4971 | */ |
| 4972 | |
| 4973 | void avcodec_get_chroma_sub_sample(enum AVPixelFormat pix_fmt, int *h_shift, int *v_shift); |
| 4974 | |
| 4975 | /** |
| 4976 | * Return a value representing the fourCC code associated to the |
| 4977 | * pixel format pix_fmt, or 0 if no associated fourCC code can be |
| 4978 | * found. |
| 4979 | */ |
| 4980 | unsigned int avcodec_pix_fmt_to_codec_tag(enum AVPixelFormat pix_fmt); |
| 4981 | |
| 4982 | /** |
| 4983 | * @deprecated see av_get_pix_fmt_loss() |
| 4984 | */ |
| 4985 | int avcodec_get_pix_fmt_loss(enum AVPixelFormat dst_pix_fmt, enum AVPixelFormat src_pix_fmt, |
| 4986 | int has_alpha); |
| 4987 | |
| 4988 | /** |
| 4989 | * Find the best pixel format to convert to given a certain source pixel |
| 4990 | * format. When converting from one pixel format to another, information loss |
| 4991 | * may occur. For example, when converting from RGB24 to GRAY, the color |
| 4992 | * information will be lost. Similarly, other losses occur when converting from |
| 4993 | * some formats to other formats. avcodec_find_best_pix_fmt_of_2() searches which of |
| 4994 | * the given pixel formats should be used to suffer the least amount of loss. |
| 4995 | * The pixel formats from which it chooses one, are determined by the |
| 4996 | * pix_fmt_list parameter. |
| 4997 | * |
| 4998 | * |
| 4999 | * @param[in] pix_fmt_list AV_PIX_FMT_NONE terminated array of pixel formats to choose from |
| 5000 | * @param[in] src_pix_fmt source pixel format |
| 5001 | * @param[in] has_alpha Whether the source pixel format alpha channel is used. |
| 5002 | * @param[out] loss_ptr Combination of flags informing you what kind of losses will occur. |
| 5003 | * @return The best pixel format to convert to or -1 if none was found. |
| 5004 | */ |
| 5005 | enum AVPixelFormat avcodec_find_best_pix_fmt_of_list(const enum AVPixelFormat *pix_fmt_list, |
| 5006 | enum AVPixelFormat src_pix_fmt, |
| 5007 | int has_alpha, int *loss_ptr); |
| 5008 | |
| 5009 | /** |
| 5010 | * @deprecated see av_find_best_pix_fmt_of_2() |
| 5011 | */ |
| 5012 | enum AVPixelFormat avcodec_find_best_pix_fmt_of_2(enum AVPixelFormat dst_pix_fmt1, enum AVPixelFormat dst_pix_fmt2, |
| 5013 | enum AVPixelFormat src_pix_fmt, int has_alpha, int *loss_ptr); |
| 5014 | |
| 5015 | attribute_deprecated__attribute__((deprecated)) |
| 5016 | #if AV_HAVE_INCOMPATIBLE_LIBAV_ABI0 |
| 5017 | enum AVPixelFormat avcodec_find_best_pix_fmt2(const enum AVPixelFormat *pix_fmt_list, |
| 5018 | enum AVPixelFormat src_pix_fmt, |
| 5019 | int has_alpha, int *loss_ptr); |
| 5020 | #else |
| 5021 | enum AVPixelFormat avcodec_find_best_pix_fmt2(enum AVPixelFormat dst_pix_fmt1, enum AVPixelFormat dst_pix_fmt2, |
| 5022 | enum AVPixelFormat src_pix_fmt, int has_alpha, int *loss_ptr); |
| 5023 | #endif |
| 5024 | |
| 5025 | |
| 5026 | enum AVPixelFormat avcodec_default_get_format(struct AVCodecContext *s, const enum AVPixelFormat * fmt); |
| 5027 | |
| 5028 | /** |
| 5029 | * @} |
| 5030 | */ |
| 5031 | |
| 5032 | #if FF_API_SET_DIMENSIONS(57 < 58) |
| 5033 | /** |
| 5034 | * @deprecated this function is not supposed to be used from outside of lavc |
| 5035 | */ |
| 5036 | attribute_deprecated__attribute__((deprecated)) |
| 5037 | void avcodec_set_dimensions(AVCodecContext *s, int width, int height); |
| 5038 | #endif |
| 5039 | |
| 5040 | /** |
| 5041 | * Put a string representing the codec tag codec_tag in buf. |
| 5042 | * |
| 5043 | * @param buf buffer to place codec tag in |
| 5044 | * @param buf_size size in bytes of buf |
| 5045 | * @param codec_tag codec tag to assign |
| 5046 | * @return the length of the string that would have been generated if |
| 5047 | * enough space had been available, excluding the trailing null |
| 5048 | */ |
| 5049 | size_t av_get_codec_tag_string(char *buf, size_t buf_size, unsigned int codec_tag); |
| 5050 | |
| 5051 | void avcodec_string(char *buf, int buf_size, AVCodecContext *enc, int encode); |
| 5052 | |
| 5053 | /** |
| 5054 | * Return a name for the specified profile, if available. |
| 5055 | * |
| 5056 | * @param codec the codec that is searched for the given profile |
| 5057 | * @param profile the profile value for which a name is requested |
| 5058 | * @return A name for the profile if found, NULL otherwise. |
| 5059 | */ |
| 5060 | const char *av_get_profile_name(const AVCodec *codec, int profile); |
| 5061 | |
| 5062 | /** |
| 5063 | * Return a name for the specified profile, if available. |
| 5064 | * |
| 5065 | * @param codec_id the ID of the codec to which the requested profile belongs |
| 5066 | * @param profile the profile value for which a name is requested |
| 5067 | * @return A name for the profile if found, NULL otherwise. |
| 5068 | * |
| 5069 | * @note unlike av_get_profile_name(), which searches a list of profiles |
| 5070 | * supported by a specific decoder or encoder implementation, this |
| 5071 | * function searches the list of profiles from the AVCodecDescriptor |
| 5072 | */ |
| 5073 | const char *avcodec_profile_name(enum AVCodecID codec_id, int profile); |
| 5074 | |
| 5075 | int avcodec_default_execute(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2),void *arg, int *ret, int count, int size); |
| 5076 | int avcodec_default_execute2(AVCodecContext *c, int (*func)(AVCodecContext *c2, void *arg2, int, int),void *arg, int *ret, int count); |
| 5077 | //FIXME func typedef |
| 5078 | |
| 5079 | /** |
| 5080 | * Fill AVFrame audio data and linesize pointers. |
| 5081 | * |
| 5082 | * The buffer buf must be a preallocated buffer with a size big enough |
| 5083 | * to contain the specified samples amount. The filled AVFrame data |
| 5084 | * pointers will point to this buffer. |
| 5085 | * |
| 5086 | * AVFrame extended_data channel pointers are allocated if necessary for |
| 5087 | * planar audio. |
| 5088 | * |
| 5089 | * @param frame the AVFrame |
| 5090 | * frame->nb_samples must be set prior to calling the |
| 5091 | * function. This function fills in frame->data, |
| 5092 | * frame->extended_data, frame->linesize[0]. |
| 5093 | * @param nb_channels channel count |
| 5094 | * @param sample_fmt sample format |
| 5095 | * @param buf buffer to use for frame data |
| 5096 | * @param buf_size size of buffer |
| 5097 | * @param align plane size sample alignment (0 = default) |
| 5098 | * @return >=0 on success, negative error code on failure |
| 5099 | * @todo return the size in bytes required to store the samples in |
| 5100 | * case of success, at the next libavutil bump |
| 5101 | */ |
| 5102 | int avcodec_fill_audio_frame(AVFrame *frame, int nb_channels, |
| 5103 | enum AVSampleFormat sample_fmt, const uint8_t *buf, |
| 5104 | int buf_size, int align); |
| 5105 | |
| 5106 | /** |
| 5107 | * Reset the internal decoder state / flush internal buffers. Should be called |
| 5108 | * e.g. when seeking or when switching to a different stream. |
| 5109 | * |
| 5110 | * @note when refcounted frames are not used (i.e. avctx->refcounted_frames is 0), |
| 5111 | * this invalidates the frames previously returned from the decoder. When |
| 5112 | * refcounted frames are used, the decoder just releases any references it might |
| 5113 | * keep internally, but the caller's reference remains valid. |
| 5114 | */ |
| 5115 | void avcodec_flush_buffers(AVCodecContext *avctx); |
| 5116 | |
| 5117 | /** |
| 5118 | * Return codec bits per sample. |
| 5119 | * |
| 5120 | * @param[in] codec_id the codec |
| 5121 | * @return Number of bits per sample or zero if unknown for the given codec. |
| 5122 | */ |
| 5123 | int av_get_bits_per_sample(enum AVCodecID codec_id); |
| 5124 | |
| 5125 | /** |
| 5126 | * Return the PCM codec associated with a sample format. |
| 5127 | * @param be endianness, 0 for little, 1 for big, |
| 5128 | * -1 (or anything else) for native |
| 5129 | * @return AV_CODEC_ID_PCM_* or AV_CODEC_ID_NONE |
| 5130 | */ |
| 5131 | enum AVCodecID av_get_pcm_codec(enum AVSampleFormat fmt, int be); |
| 5132 | |
| 5133 | /** |
| 5134 | * Return codec bits per sample. |
| 5135 | * Only return non-zero if the bits per sample is exactly correct, not an |
| 5136 | * approximation. |
| 5137 | * |
| 5138 | * @param[in] codec_id the codec |
| 5139 | * @return Number of bits per sample or zero if unknown for the given codec. |
| 5140 | */ |
| 5141 | int av_get_exact_bits_per_sample(enum AVCodecID codec_id); |
| 5142 | |
| 5143 | /** |
| 5144 | * Return audio frame duration. |
| 5145 | * |
| 5146 | * @param avctx codec context |
| 5147 | * @param frame_bytes size of the frame, or 0 if unknown |
| 5148 | * @return frame duration, in samples, if known. 0 if not able to |
| 5149 | * determine. |
| 5150 | */ |
| 5151 | int av_get_audio_frame_duration(AVCodecContext *avctx, int frame_bytes); |
| 5152 | |
| 5153 | |
| 5154 | typedef struct AVBitStreamFilterContext { |
| 5155 | void *priv_data; |
| 5156 | struct AVBitStreamFilter *filter; |
| 5157 | AVCodecParserContext *parser; |
| 5158 | struct AVBitStreamFilterContext *next; |
| 5159 | /** |
| 5160 | * Internal default arguments, used if NULL is passed to av_bitstream_filter_filter(). |
| 5161 | * Not for access by library users. |
| 5162 | */ |
| 5163 | char *args; |
| 5164 | } AVBitStreamFilterContext; |
| 5165 | |
| 5166 | |
| 5167 | typedef struct AVBitStreamFilter { |
| 5168 | const char *name; |
| 5169 | int priv_data_size; |
| 5170 | int (*filter)(AVBitStreamFilterContext *bsfc, |
| 5171 | AVCodecContext *avctx, const char *args, |
| 5172 | uint8_t **poutbuf, int *poutbuf_size, |
| 5173 | const uint8_t *buf, int buf_size, int keyframe); |
| 5174 | void (*close)(AVBitStreamFilterContext *bsfc); |
| 5175 | struct AVBitStreamFilter *next; |
| 5176 | } AVBitStreamFilter; |
| 5177 | |
| 5178 | /** |
| 5179 | * Register a bitstream filter. |
| 5180 | * |
| 5181 | * The filter will be accessible to the application code through |
| 5182 | * av_bitstream_filter_next() or can be directly initialized with |
| 5183 | * av_bitstream_filter_init(). |
| 5184 | * |
| 5185 | * @see avcodec_register_all() |
| 5186 | */ |
| 5187 | void av_register_bitstream_filter(AVBitStreamFilter *bsf); |
| 5188 | |
| 5189 | /** |
| 5190 | * Create and initialize a bitstream filter context given a bitstream |
| 5191 | * filter name. |
| 5192 | * |
| 5193 | * The returned context must be freed with av_bitstream_filter_close(). |
| 5194 | * |
| 5195 | * @param name the name of the bitstream filter |
| 5196 | * @return a bitstream filter context if a matching filter was found |
| 5197 | * and successfully initialized, NULL otherwise |
| 5198 | */ |
| 5199 | AVBitStreamFilterContext *av_bitstream_filter_init(const char *name); |
| 5200 | |
| 5201 | /** |
| 5202 | * Filter bitstream. |
| 5203 | * |
| 5204 | * This function filters the buffer buf with size buf_size, and places the |
| 5205 | * filtered buffer in the buffer pointed to by poutbuf. |
| 5206 | * |
| 5207 | * The output buffer must be freed by the caller. |
| 5208 | * |
| 5209 | * @param bsfc bitstream filter context created by av_bitstream_filter_init() |
| 5210 | * @param avctx AVCodecContext accessed by the filter, may be NULL. |
| 5211 | * If specified, this must point to the encoder context of the |
| 5212 | * output stream the packet is sent to. |
| 5213 | * @param args arguments which specify the filter configuration, may be NULL |
| 5214 | * @param poutbuf pointer which is updated to point to the filtered buffer |
| 5215 | * @param poutbuf_size pointer which is updated to the filtered buffer size in bytes |
| 5216 | * @param buf buffer containing the data to filter |
| 5217 | * @param buf_size size in bytes of buf |
| 5218 | * @param keyframe set to non-zero if the buffer to filter corresponds to a key-frame packet data |
| 5219 | * @return >= 0 in case of success, or a negative error code in case of failure |
| 5220 | * |
| 5221 | * If the return value is positive, an output buffer is allocated and |
| 5222 | * is available in *poutbuf, and is distinct from the input buffer. |
| 5223 | * |
| 5224 | * If the return value is 0, the output buffer is not allocated and |
| 5225 | * should be considered identical to the input buffer, or in case |
| 5226 | * *poutbuf was set it points to the input buffer (not necessarily to |
| 5227 | * its starting address). |
| 5228 | */ |
| 5229 | int av_bitstream_filter_filter(AVBitStreamFilterContext *bsfc, |
| 5230 | AVCodecContext *avctx, const char *args, |
| 5231 | uint8_t **poutbuf, int *poutbuf_size, |
| 5232 | const uint8_t *buf, int buf_size, int keyframe); |
| 5233 | |
| 5234 | /** |
| 5235 | * Release bitstream filter context. |
| 5236 | * |
| 5237 | * @param bsf the bitstream filter context created with |
| 5238 | * av_bitstream_filter_init(), can be NULL |
| 5239 | */ |
| 5240 | void av_bitstream_filter_close(AVBitStreamFilterContext *bsf); |
| 5241 | |
| 5242 | /** |
| 5243 | * If f is NULL, return the first registered bitstream filter, |
| 5244 | * if f is non-NULL, return the next registered bitstream filter |
| 5245 | * after f, or NULL if f is the last one. |
| 5246 | * |
| 5247 | * This function can be used to iterate over all registered bitstream |
| 5248 | * filters. |
| 5249 | */ |
| 5250 | AVBitStreamFilter *av_bitstream_filter_next(const AVBitStreamFilter *f); |
| 5251 | |
| 5252 | /* memory */ |
| 5253 | |
| 5254 | /** |
| 5255 | * Same behaviour av_fast_malloc but the buffer has additional |
| 5256 | * AV_INPUT_BUFFER_PADDING_SIZE at the end which will always be 0. |
| 5257 | * |
| 5258 | * In addition the whole buffer will initially and after resizes |
| 5259 | * be 0-initialized so that no uninitialized data will ever appear. |
| 5260 | */ |
| 5261 | void av_fast_padded_malloc(void *ptr, unsigned int *size, size_t min_size); |
| 5262 | |
| 5263 | /** |
| 5264 | * Same behaviour av_fast_padded_malloc except that buffer will always |
| 5265 | * be 0-initialized after call. |
| 5266 | */ |
| 5267 | void av_fast_padded_mallocz(void *ptr, unsigned int *size, size_t min_size); |
| 5268 | |
| 5269 | /** |
| 5270 | * Encode extradata length to a buffer. Used by xiph codecs. |
| 5271 | * |
| 5272 | * @param s buffer to write to; must be at least (v/255+1) bytes long |
| 5273 | * @param v size of extradata in bytes |
| 5274 | * @return number of bytes written to the buffer. |
| 5275 | */ |
| 5276 | unsigned int av_xiphlacing(unsigned char *s, unsigned int v); |
| 5277 | |
| 5278 | #if FF_API_MISSING_SAMPLE(57 < 58) |
| 5279 | /** |
| 5280 | * Log a generic warning message about a missing feature. This function is |
| 5281 | * intended to be used internally by FFmpeg (libavcodec, libavformat, etc.) |
| 5282 | * only, and would normally not be used by applications. |
| 5283 | * @param[in] avc a pointer to an arbitrary struct of which the first field is |
| 5284 | * a pointer to an AVClass struct |
| 5285 | * @param[in] feature string containing the name of the missing feature |
| 5286 | * @param[in] want_sample indicates if samples are wanted which exhibit this feature. |
| 5287 | * If want_sample is non-zero, additional verbage will be added to the log |
| 5288 | * message which tells the user how to report samples to the development |
| 5289 | * mailing list. |
| 5290 | * @deprecated Use avpriv_report_missing_feature() instead. |
| 5291 | */ |
| 5292 | attribute_deprecated__attribute__((deprecated)) |
| 5293 | void av_log_missing_feature(void *avc, const char *feature, int want_sample); |
| 5294 | |
| 5295 | /** |
| 5296 | * Log a generic warning message asking for a sample. This function is |
| 5297 | * intended to be used internally by FFmpeg (libavcodec, libavformat, etc.) |
| 5298 | * only, and would normally not be used by applications. |
| 5299 | * @param[in] avc a pointer to an arbitrary struct of which the first field is |
| 5300 | * a pointer to an AVClass struct |
| 5301 | * @param[in] msg string containing an optional message, or NULL if no message |
| 5302 | * @deprecated Use avpriv_request_sample() instead. |
| 5303 | */ |
| 5304 | attribute_deprecated__attribute__((deprecated)) |
| 5305 | void av_log_ask_for_sample(void *avc, const char *msg, ...) av_printf_format(2, 3)__attribute__((__format__(__printf__, 2, 3))); |
| 5306 | #endif /* FF_API_MISSING_SAMPLE */ |
| 5307 | |
| 5308 | /** |
| 5309 | * Register the hardware accelerator hwaccel. |
| 5310 | */ |
| 5311 | void av_register_hwaccel(AVHWAccel *hwaccel); |
| 5312 | |
| 5313 | /** |
| 5314 | * If hwaccel is NULL, returns the first registered hardware accelerator, |
| 5315 | * if hwaccel is non-NULL, returns the next registered hardware accelerator |
| 5316 | * after hwaccel, or NULL if hwaccel is the last one. |
| 5317 | */ |
| 5318 | AVHWAccel *av_hwaccel_next(const AVHWAccel *hwaccel); |
| 5319 | |
| 5320 | |
| 5321 | /** |
| 5322 | * Lock operation used by lockmgr |
| 5323 | */ |
| 5324 | enum AVLockOp { |
| 5325 | AV_LOCK_CREATE, ///< Create a mutex |
| 5326 | AV_LOCK_OBTAIN, ///< Lock the mutex |
| 5327 | AV_LOCK_RELEASE, ///< Unlock the mutex |
| 5328 | AV_LOCK_DESTROY, ///< Free mutex resources |
| 5329 | }; |
| 5330 | |
| 5331 | /** |
| 5332 | * Register a user provided lock manager supporting the operations |
| 5333 | * specified by AVLockOp. The "mutex" argument to the function points |
| 5334 | * to a (void *) where the lockmgr should store/get a pointer to a user |
| 5335 | * allocated mutex. It is NULL upon AV_LOCK_CREATE and equal to the |
| 5336 | * value left by the last call for all other ops. If the lock manager is |
| 5337 | * unable to perform the op then it should leave the mutex in the same |
| 5338 | * state as when it was called and return a non-zero value. However, |
| 5339 | * when called with AV_LOCK_DESTROY the mutex will always be assumed to |
| 5340 | * have been successfully destroyed. If av_lockmgr_register succeeds |
| 5341 | * it will return a non-negative value, if it fails it will return a |
| 5342 | * negative value and destroy all mutex and unregister all callbacks. |
| 5343 | * av_lockmgr_register is not thread-safe, it must be called from a |
| 5344 | * single thread before any calls which make use of locking are used. |
| 5345 | * |
| 5346 | * @param cb User defined callback. av_lockmgr_register invokes calls |
| 5347 | * to this callback and the previously registered callback. |
| 5348 | * The callback will be used to create more than one mutex |
| 5349 | * each of which must be backed by its own underlying locking |
| 5350 | * mechanism (i.e. do not use a single static object to |
| 5351 | * implement your lock manager). If cb is set to NULL the |
| 5352 | * lockmgr will be unregistered. |
| 5353 | */ |
| 5354 | int av_lockmgr_register(int (*cb)(void **mutex, enum AVLockOp op)); |
| 5355 | |
| 5356 | /** |
| 5357 | * Get the type of the given codec. |
| 5358 | */ |
| 5359 | enum AVMediaType avcodec_get_type(enum AVCodecID codec_id); |
| 5360 | |
| 5361 | /** |
| 5362 | * Get the name of a codec. |
| 5363 | * @return a static string identifying the codec; never NULL |
| 5364 | */ |
| 5365 | const char *avcodec_get_name(enum AVCodecID id); |
| 5366 | |
| 5367 | /** |
| 5368 | * @return a positive value if s is open (i.e. avcodec_open2() was called on it |
| 5369 | * with no corresponding avcodec_close()), 0 otherwise. |
| 5370 | */ |
| 5371 | int avcodec_is_open(AVCodecContext *s); |
| 5372 | |
| 5373 | /** |
| 5374 | * @return a non-zero number if codec is an encoder, zero otherwise |
| 5375 | */ |
| 5376 | int av_codec_is_encoder(const AVCodec *codec); |
| 5377 | |
| 5378 | /** |
| 5379 | * @return a non-zero number if codec is a decoder, zero otherwise |
| 5380 | */ |
| 5381 | int av_codec_is_decoder(const AVCodec *codec); |
| 5382 | |
| 5383 | /** |
| 5384 | * @return descriptor for given codec ID or NULL if no descriptor exists. |
| 5385 | */ |
| 5386 | const AVCodecDescriptor *avcodec_descriptor_get(enum AVCodecID id); |
| 5387 | |
| 5388 | /** |
| 5389 | * Iterate over all codec descriptors known to libavcodec. |
| 5390 | * |
| 5391 | * @param prev previous descriptor. NULL to get the first descriptor. |
| 5392 | * |
| 5393 | * @return next descriptor or NULL after the last descriptor |
| 5394 | */ |
| 5395 | const AVCodecDescriptor *avcodec_descriptor_next(const AVCodecDescriptor *prev); |
| 5396 | |
| 5397 | /** |
| 5398 | * @return codec descriptor with the given name or NULL if no such descriptor |
| 5399 | * exists. |
| 5400 | */ |
| 5401 | const AVCodecDescriptor *avcodec_descriptor_get_by_name(const char *name); |
| 5402 | |
| 5403 | /** |
| 5404 | * Allocate a CPB properties structure and initialize its fields to default |
| 5405 | * values. |
| 5406 | * |
| 5407 | * @param size if non-NULL, the size of the allocated struct will be written |
| 5408 | * here. This is useful for embedding it in side data. |
| 5409 | * |
| 5410 | * @return the newly allocated struct or NULL on failure |
| 5411 | */ |
| 5412 | AVCPBProperties *av_cpb_properties_alloc(size_t *size); |
| 5413 | |
| 5414 | /** |
| 5415 | * @} |
| 5416 | */ |
| 5417 | |
| 5418 | #endif /* AVCODEC_AVCODEC_H */ |