1Never assume the API of libav* to be stable unless at least 1 month has passed 2since the last major version increase. 3 4The last version increases were: 5libavcodec: 2011-04-18 6libavdevice: 2011-04-18 7libavfilter: 2011-04-18 8libavformat: 2011-04-18 9libpostproc: 2011-04-18 (deprecated, to be removed later) 10libswscale: 2011-06-20 11libavutil: 2011-04-18 12 13 14API changes, most recent first: 15 162012-03-04 - 7f3f855 - lavu 51.22.1 - error.h 17 Add AVERROR_UNKNOWN 18 192012-02-29 - 2ad77c6 - lavf 53.21.1 20 Add avformat_get_riff_video_tags() and avformat_get_riff_audio_tags(). 21 222012-02-29 - a1556d3 - lavu 51.22.0 - intfloat.h 23 Add a new installed header libavutil/intfloat.h with int/float punning 24 functions. 25 262012-02-17 - 350d06d - lavc 53.35.0 27 Add avcodec_is_open() function. 28 292012-01-15 - lavc 53.34.0 30 New audio encoding API: 31 b2c75b6 Add CODEC_CAP_VARIABLE_FRAME_SIZE capability for use by audio 32 encoders. 33 5ee5fa0 Add avcodec_fill_audio_frame() as a convenience function. 34 b2c75b6 Add avcodec_encode_audio2() and deprecate avcodec_encode_audio(). 35 Add AVCodec.encode2(). 36 372012-01-12 - 3167dc9 - lavfi 2.15.0 38 Add a new installed header -- libavfilter/version.h -- with version macros. 39 402011-01-03 - b73ec05 - lavu 51.21.0 41 Add av_popcount64 42 432011-12-25 - lavfi 2.14.0 44 e1d9dbf Add a new installed header - buffersrc.h 45 It contains a new function av_buffersrc_buffer() that allows passing 46 frames to the 'buffer' filter, but unlike av_vsrc_buffer_add_frame() 47 it allows for direct rendering. 48 1c9e340 Add avfilter_copy_frame_props() for copying properties from 49 AVFrame to AVFilterBufferRef. 50 512011-12-25 - lavc 53.31.0 52 Add the following new fields to AVFrame: 53 b58dbb5 sample_aspect_ratio 54 3a2ddf7 width, height 55 8a4a5f6 format 56 572011-12-18 - 8400b12 - lavc 53.28.1 58 Deprecate AVFrame.age. The field is unused. 59 602011-12-12 - 5266045 - lavf 53.17.0 61 Add avformat_close_input(). 62 Deprecate av_close_input_file() and av_close_input_stream(). 63 642011-12-02 - 0eea212 - lavc 53.25.0 65 Add nb_samples and extended_data fields to AVFrame. 66 Deprecate AVCODEC_MAX_AUDIO_FRAME_SIZE. 67 Deprecate avcodec_decode_audio3() in favor of avcodec_decode_audio4(). 68 avcodec_decode_audio4() writes output samples to an AVFrame, which allows 69 audio decoders to use get_buffer(). 70 712011-12-04 - 560f773 - lavc 53.24.0 72 Change AVFrame.data[4]/base[4]/linesize[4]/error[4] to [8] at next major bump. 73 Change AVPicture.data[4]/linesize[4] to [8] at next major bump. 74 Change AVCodecContext.error[4] to [8] at next major bump. 75 Add AV_NUM_DATA_POINTERS to simplify the bump transition. 76 772011-11-23 - bbb46f3 - lavu 51.18.0 78 Add av_samples_get_buffer_size(), av_samples_fill_arrays(), and 79 av_samples_alloc(), to samplefmt.h. 80 812011-11-23 - 8889cc4 - lavu 51.17.0 82 Add planar sample formats and av_sample_fmt_is_planar() to samplefmt.h. 83 842011-11-19 - f3a29b7 - lavc 53.21.0 85 Move some AVCodecContext fields to a new private struct, AVCodecInternal, 86 which is accessed from a new field, AVCodecContext.internal. 87 - fields moved: 88 AVCodecContext.internal_buffer --> AVCodecInternal.buffer 89 AVCodecContext.internal_buffer_count --> AVCodecInternal.buffer_count 90 AVCodecContext.is_copy --> AVCodecInternal.is_copy 91 922011-11-16 - 6270671 - lavu 51.16.0 93 Add av_timegm() 94 952011-11-13 - lavf 53.15.0 96 New interrupt callback API, allowing per-AVFormatContext/AVIOContext 97 interrupt callbacks. 98 6aa0b98 Add AVIOInterruptCB struct and the interrupt_callback field to 99 AVFormatContext. 100 1dee0ac Add avio_open2() with additional parameters. Those are 101 an interrupt callback and an options AVDictionary. 102 This will allow passing AVOptions to protocols after lavf 103 54.0. 104 1052011-11-06 - ba04ecf - lavu 51.14.0 106 Add av_strcasecmp() and av_strncasecmp() to avstring.h. 107 1082011-11-06 - 07b172f - lavu 51.13.0 109 Add av_toupper()/av_tolower() 110 1112011-11-05 - b6d08f4 - lavf 53.13.0 112 Add avformat_network_init()/avformat_network_uninit() 113 1142011-10-27 - 512557b - lavc 53.15.0 115 Remove avcodec_parse_frame. 116 Deprecate AVCodecContext.parse_only and CODEC_CAP_PARSE_ONLY. 117 1182011-10-19 - 569129a - lavf 53.10.0 119 Add avformat_new_stream(). Deprecate av_new_stream(). 120 1212011-10-13 - b631fba - lavf 53.9.0 122 Add AVFMT_NO_BYTE_SEEK AVInputFormat flag. 123 1242011-10-12 - lavu 51.12.0 125 AVOptions API rewrite. 126 127 - 145f741 FF_OPT_TYPE* renamed to AV_OPT_TYPE_* 128 - new setting/getting functions with slightly different semantics: 129 dac66da av_set_string3 -> av_opt_set 130 av_set_double -> av_opt_set_double 131 av_set_q -> av_opt_set_q 132 av_set_int -> av_opt_set_int 133 134 41d9d51 av_get_string -> av_opt_get 135 av_get_double -> av_opt_get_double 136 av_get_q -> av_opt_get_q 137 av_get_int -> av_opt_get_int 138 139 - 8c5dcaa trivial rename av_next_option -> av_opt_next 140 - 641c7af new functions - av_opt_child_next, av_opt_child_class_next 141 and av_opt_find2() 142 1432011-09-03 - fb4ca26 - lavc 53.10.0 144 lavf 53.6.0 145 lsws 2.1.0 146 Add {avcodec,avformat,sws}_get_class(). 147 1482011-09-03 - c11fb82 - lavu 51.10.0 149 Add AV_OPT_SEARCH_FAKE_OBJ flag for av_opt_find() function. 150 1512011-08-26 - lavu 51.9.0 152 - f2011ed Add av_fifo_peek2(), deprecate av_fifo_peek(). 153 - add41de..abc78a5 Do not include intfloat_readwrite.h, 154 mathematics.h, rational.h, pixfmt.h, or log.h from avutil.h. 155 1562011-08-16 - 48f9e45 - lavf 53.4.0 157 Add avformat_query_codec(). 158 1592011-08-16 - bca06e7 - lavc 53.8.0 160 Add avcodec_get_type(). 161 1622011-08-06 - 2f63440 - lavf 53.4.0 163 Add error_recognition to AVFormatContext. 164 1652011-08-02 - 9d39cbf - lavc 53.7.1 166 Add AV_PKT_FLAG_CORRUPT AVPacket flag. 167 1682011-07-10 - a67c061 - lavf 53.3.0 169 Add avformat_find_stream_info(), deprecate av_find_stream_info(). 170 1712011-07-10 - 0b950fe - lavc 53.6.0 172 Add avcodec_open2(), deprecate avcodec_open(). 173 1742011-06-23 - 67e9ae1 - lavu 51.8.0 - attributes.h 175 Add av_printf_format(). 176 1772011-06-16 - 05e84c9, 25de595 - lavf 53.2.0 - avformat.h 178 Add avformat_open_input and avformat_write_header(). 179 Deprecate av_open_input_stream, av_open_input_file, 180 AVFormatParameters and av_write_header. 181 1822011-06-16 - 7e83e1c, dc59ec5 - lavu 51.7.0 - opt.h 183 Add av_opt_set_dict() and av_opt_find(). 184 Deprecate av_find_opt(). 185 Add AV_DICT_APPEND flag. 186 1872011-06-10 - cb7c11c - lavu 51.6.0 - opt.h 188 Add av_opt_flag_is_set(). 189 1902011-06-08 - d9f80ea - lavu 51.5.0 - AVMetadata 191 Move AVMetadata from lavf to lavu and rename it to 192 AVDictionary -- new installed header dict.h. 193 All av_metadata_* functions renamed to av_dict_*. 194 1952011-06-07 - a6703fa - lavu 51.4.0 - av_get_bytes_per_sample() 196 Add av_get_bytes_per_sample() in libavutil/samplefmt.h. 197 Deprecate av_get_bits_per_sample_fmt(). 198 1992011-06-05 - b39b062 - lavu 51.3.0 - opt.h 200 Add av_opt_free convenience function. 201 2022011-05-28 - 0420bd7 - lavu 51.2.0 - pixdesc.h 203 Add av_get_pix_fmt_name() in libavutil/pixdesc.h, and deprecate 204 avcodec_get_pix_fmt_name() in libavcodec/avcodec.h in its favor. 205 2062011-05-25 - 30315a8 - lavf 53.1.0 - avformat.h 207 Add fps_probe_size to AVFormatContext. 208 2092011-05-18 - 64150ff - lavc 53.4.0 - AVCodecContext.request_sample_fmt 210 Add request_sample_fmt field to AVCodecContext. 211 2122011-05-10 - 188dea1 - lavc 53.3.0 - avcodec.h 213 Deprecate AVLPCType and the following fields in 214 AVCodecContext: lpc_coeff_precision, prediction_order_method, 215 min_partition_order, max_partition_order, lpc_type, lpc_passes. 216 Corresponding FLAC encoder options should be used instead. 217 2182011-04-26 - bebe72f - lavu 51.1.0 - avutil.h 219 Add AVPictureType enum and av_get_picture_type_char(), deprecate 220 FF_*_TYPE defines and av_get_pict_type_char() defined in 221 libavcodec/avcodec.h. 222 2232011-04-26 - 10d3940 - lavfi 2.3.0 - avfilter.h 224 Add pict_type and key_frame fields to AVFilterBufferRefVideo. 225 2262011-04-26 - 7a11c82 - lavfi 2.2.0 - vsrc_buffer 227 Add sample_aspect_ratio fields to vsrc_buffer arguments 228 2292011-04-21 - 94f7451 - lavc 53.1.0 - avcodec.h 230 Add CODEC_CAP_SLICE_THREADS for codecs supporting sliced threading. 231 2322011-04-15 - lavc 52.120.0 - avcodec.h 233 AVPacket structure got additional members for passing side information: 234 4de339e introduce side information for AVPacket 235 2d8591c make containers pass palette change in AVPacket 236 2372011-04-12 - lavf 52.107.0 - avio.h 238 Avio cleanup, part II - deprecate the entire URLContext API: 239 175389c add avio_check as a replacement for url_exist 240 ff1ec0c add avio_pause and avio_seek_time as replacements 241 for _av_url_read_fseek/fpause 242 cdc6a87 deprecate av_protocol_next(), avio_enum_protocols 243 should be used instead. 244 80c6e23 rename url_set_interrupt_cb->avio_set_interrupt_cb. 245 f87b1b3 rename open flags: URL_* -> AVIO_* 246 f8270bb add avio_enum_protocols. 247 5593f03 deprecate URLProtocol. 248 c486dad deprecate URLContext. 249 026e175 deprecate the typedef for URLInterruptCB 250 8e76a19 deprecate av_register_protocol2. 251 b840484 deprecate URL_PROTOCOL_FLAG_NESTED_SCHEME 252 1305d93 deprecate av_url_read_seek 253 fa104e1 deprecate av_url_read_pause 254 727c7aa deprecate url_get_filename(). 255 5958df3 deprecate url_max_packet_size(). 256 1869ea0 deprecate url_get_file_handle(). 257 32a97d4 deprecate url_filesize(). 258 e52a914 deprecate url_close(). 259 58a48c6 deprecate url_seek(). 260 925e908 deprecate url_write(). 261 dce3756 deprecate url_read_complete(). 262 bc371ac deprecate url_read(). 263 0589da0 deprecate url_open(). 264 62eaaea deprecate url_connect. 265 5652bb9 deprecate url_alloc. 266 333e894 deprecate url_open_protocol 267 e230705 deprecate url_poll and URLPollEntry 268 2692011-04-10 - lavu 50.40.0 - pixfmt.h 270 Add PIX_FMT_BGR48LE and PIX_FMT_BGR48BE pixel formats 271 2722011-04-08 - lavf 52.106.0 - avformat.h 273 Minor avformat.h cleanup: 274 a9bf9d8 deprecate av_guess_image2_codec 275 c3675df rename avf_sdp_create->av_sdp_create 276 2772011-04-03 - lavf 52.105.0 - avio.h 278 Large-scale renaming/deprecating of AVIOContext-related functions: 279 724f6a0 deprecate url_fdopen 280 403ee83 deprecate url_open_dyn_packet_buf 281 6dc7d80 rename url_close_dyn_buf -> avio_close_dyn_buf 282 b92c545 rename url_open_dyn_buf -> avio_open_dyn_buf 283 8978fed introduce an AVIOContext.seekable field as a replacement for 284 AVIOContext.is_streamed and url_is_streamed() 285 b64030f deprecate get_checksum() 286 4c4427a deprecate init_checksum() 287 4ec153b deprecate udp_set_remote_url/get_local_port 288 933e90a deprecate av_url_read_fseek/fpause 289 8d9769a deprecate url_fileno 290 b7f2fdd rename put_flush_packet -> avio_flush 291 35f1023 deprecate url_close_buf 292 83fddae deprecate url_open_buf 293 d9d86e0 rename url_fprintf -> avio_printf 294 59f65d9 deprecate url_setbufsize 295 3e68b3b deprecate url_ferror 296 66e5b1d deprecate url_feof 297 e8bb2e2 deprecate url_fget_max_packet_size 298 76aa876 rename url_fsize -> avio_size 299 e519753 deprecate url_fgetc 300 655e45e deprecate url_fgets 301 a2704c9 rename url_ftell -> avio_tell 302 e16ead0 deprecate get_strz() in favor of avio_get_str 303 0300db8,2af07d3 rename url_fskip -> avio_skip 304 6b4aa5d rename url_fseek -> avio_seek 305 61840b4 deprecate put_tag 306 22a3212 rename url_fopen/fclose -> avio_open/close. 307 0ac8e2b deprecate put_nbyte 308 77eb550 rename put_byte -> avio_w8 309 put_[b/l]e<type> -> avio_w[b/l]<type> 310 put_buffer -> avio_write 311 b7effd4 rename get_byte -> avio_r8, 312 get_[b/l]e<type> -> avio_r[b/l]<type> 313 get_buffer -> avio_read 314 b3db9ce deprecate get_partial_buffer 315 8d9ac96 rename av_alloc_put_byte -> avio_alloc_context 316 3172011-03-25 - 34b47d7 - lavc 52.115.0 - AVCodecContext.audio_service_type 318 Add audio_service_type field to AVCodecContext. 319 3202011-03-02 - 863c471 - lavf 52.103.0 - av_pkt_dump2, av_pkt_dump_log2 321 Add new functions av_pkt_dump2, av_pkt_dump_log2 that uses the 322 source stream timebase for outputting timestamps. Deprecate 323 av_pkt_dump and av_pkt_dump_log. 324 3252011-02-20 - e731b8d - lavf 52.102.0 - avio.h 326 * e731b8d - rename init_put_byte() to ffio_init_context(), deprecating the 327 original, and move it to a private header so it is no longer 328 part of our public API. Instead, use av_alloc_put_byte(). 329 * ae628ec - rename ByteIOContext to AVIOContext. 330 3312011-02-16 - 09d171b - lavf 52.101.0 - avformat.h 332 lavu 52.39.0 - parseutils.h 333 * 610219a - Add av_ prefix to dump_format(). 334 * f6c7375 - Replace parse_date() in lavf with av_parse_time() in lavu. 335 * ab0287f - Move find_info_tag from lavf to lavu and add av_prefix to it. 336 3372011-02-15 - lavu 52.38.0 - merge libavcore 338 libavcore is merged back completely into libavutil 339 3402011-02-10 - 55bad0c - lavc 52.113.0 - vbv_delay 341 Add vbv_delay field to AVCodecContext 342 3432011-02-14 - 24a83bd - lavf 52.100.0 - AV_DISPOSITION_CLEAN_EFFECTS 344 Add AV_DISPOSITION_CLEAN_EFFECTS disposition flag. 345 3462011-02-14 - 910b5b8 - lavfi 1.76.0 - AVFilterLink sample_aspect_ratio 347 Add sample_aspect_ratio field to AVFilterLink. 348 3492011-02-10 - 12c14cd - lavf 52.99.0 - AVStream.disposition 350 Add AV_DISPOSITION_HEARING_IMPAIRED and AV_DISPOSITION_VISUAL_IMPAIRED. 351 3522011-02-09 - 5592734 - lavc 52.112.0 - avcodec_thread_init() 353 Deprecate avcodec_thread_init()/avcodec_thread_free() use; instead 354 set thread_count before calling avcodec_open. 355 3562011-02-09 - 778b08a - lavc 52.111.0 - threading API 357 Add CODEC_CAP_FRAME_THREADS with new restrictions on get_buffer()/ 358 release_buffer()/draw_horiz_band() callbacks for appropriate codecs. 359 Add thread_type and active_thread_type fields to AVCodecContext. 360 3612011-02-08 - 3940caa - lavf 52.98.0 - av_probe_input_buffer 362 Add av_probe_input_buffer() to avformat.h for probing format from a 363 ByteIOContext. 364 3652011-02-06 - fe174fc - lavf 52.97.0 - avio.h 366 Add flag for non-blocking protocols: URL_FLAG_NONBLOCK 367 3682011-02-04 - f124b08 - lavf 52.96.0 - avformat_free_context() 369 Add avformat_free_context() in avformat.h. 370 3712011-02-03 - f5b82f4 - lavc 52.109.0 - add CODEC_ID_PRORES 372 Add CODEC_ID_PRORES to avcodec.h. 373 3742011-02-03 - fe9a3fb - lavc 52.109.0 - H.264 profile defines 375 Add defines for H.264 * Constrained Baseline and Intra profiles 376 3772011-02-02 - lavf 52.95.0 378 * 50196a9 - add a new installed header version.h. 379 * 4efd5cf, dccbd97, 93b78d1 - add several variants of public 380 avio_{put,get}_str* functions. Deprecate corresponding semi-public 381 {put,get}_str*. 382 3832011-02-02 - dfd2a00 - lavu 50.37.0 - log.h 384 Make av_dlog public. 385 3862011-01-15 - r26374 - lavfi 1.74.0 - AVFilterBufferRefAudioProps 387 Rename AVFilterBufferRefAudioProps.samples_nb to nb_samples. 388 3892011-01-14 - r26330 - lavf 52.93.0 - av_metadata_copy() 390 Add av_metadata_copy() in avformat.h. 391 3922011-01-07 - r26262 - lavc 52.107.0 - deprecate reordered_opaque 393 Deprecate reordered_opaque in favor of pkt_pts/dts. 394 3952011-01-07 - r26261 - lavc 52.106.0 - pkt_dts 396 Add pkt_dts to AVFrame, this will in the future allow multithreading decoders 397 to not mess up dts. 398 3992011-01-07 - r26260 - lavc 52.105.0 - pkt_pts 400 Add pkt_pts to AVFrame. 401 4022011-01-07 - r26259 - lavc 52.104.0 - av_get_profile_name() 403 Add av_get_profile_name to libavcodec/avcodec.h. 404 4052010-12-27 - r26108 - lavfi 1.71.0 - AV_PERM_NEG_LINESIZES 406 Add AV_PERM_NEG_LINESIZES in avfilter.h. 407 4082010-12-27 - r26104 - lavf 52.91.0 - av_find_best_stream() 409 Add av_find_best_stream to libavformat/avformat.h. 410 4112010-12-27 - r26103 - lavf 52.90.0 412 Add AVFMT_NOSTREAMS flag for formats with no streams, 413 like e.g. text metadata. 414 4152010-12-22 - r26073 - lavu 50.36.0 - file.h 416 Add functions av_file_map() and av_file_unmap() in file.h. 417 4182010-12-19 - r26056 - lavu 50.35.0 - error.h 419 Add "not found" error codes: 420 AVERROR_DEMUXER_NOT_FOUND 421 AVERROR_MUXER_NOT_FOUND 422 AVERROR_DECODER_NOT_FOUND 423 AVERROR_ENCODER_NOT_FOUND 424 AVERROR_PROTOCOL_NOT_FOUND 425 AVERROR_FILTER_NOT_FOUND 426 AVERROR_BSF_NOT_FOUND 427 AVERROR_STREAM_NOT_FOUND 428 4292010-12-09 - r25923 - lavcore 0.16.0 - avcore.h 430 Move AV_NOPTS_VALUE, AV_TIME_BASE, AV_TIME_BASE_Q symbols from 431 avcodec.h to avcore.h. 432 4332010-12-04 - r25886 - lavc 52.98.0 - CODEC_CAP_NEG_LINESIZES 434 Add CODEC_CAP_NEG_LINESIZES codec capability flag in avcodec.h. 435 4362010-12-04 - r25879 - lavu 50.34.0 - av_get_pix_fmt_string() 437 Deprecate avcodec_pix_fmt_string() in favor of 438 pixdesc.h/av_get_pix_fmt_string(). 439 4402010-12-04 - r25878 - lavcore 0.15.0 - av_image_alloc() 441 Add av_image_alloc() to libavcore/imgutils.h. 442 4432010-12-02 - r25862 - lavfi 1.67.0 - avfilter_graph_create_filter() 444 Add function avfilter_graph_create_filter() in avfiltergraph.h. 445 4462010-11-25 - r25826 - lavfi 1.65.0 - avfilter_get_video_buffer_ref_from_arrays() 447 Add function avfilter_get_video_buffer_ref_from_arrays() in 448 avfilter.h. 449 4502010-11-21 - r25787 - lavcore 0.14.0 - audioconvert.h 451 Add a public audio channel API in audioconvert.h, and deprecate the 452 corresponding functions in libavcodec: 453 avcodec_get_channel_name() 454 avcodec_get_channel_layout() 455 avcodec_get_channel_layout_string() 456 avcodec_channel_layout_num_channels() 457 and the CH_* macros defined in libavcodec/avcodec.h. 458 4592010-11-21 - r25777 - lavf 52.85.0 - avformat.h 460 Add av_append_packet(). 461 4622010-11-21 - r25776 - lavc 52.97.0 - avcodec.h 463 Add av_grow_packet(). 464 4652010-11-17 - r25761 - lavcore 0.13.0 - parseutils.h 466 Add av_parse_color() declared in libavcore/parseutils.h. 467 4682010-11-13 - r25745 - lavc 52.95.0 - AVCodecContext 469 Add AVCodecContext.subtitle_header and AVCodecContext.subtitle_header_size 470 fields. 471 4722010-11-13 - r25740 - lavfi 1.62.0 - avfiltergraph.h 473 Make avfiltergraph.h public. 474 4752010-11-13 - r25737 - lavfi 1.61.0 - avfiltergraph.h 476 Remove declarations from avfiltergraph.h for the functions: 477 avfilter_graph_check_validity() 478 avfilter_graph_config_links() 479 avfilter_graph_config_formats() 480 which are now internal. 481 Use avfilter_graph_config() instead. 482 4832010-11-08 - r25708 - lavu 50.33.0 - eval.h 484 Deprecate functions: 485 av_parse_and_eval_expr(), 486 av_parse_expr(), 487 av_eval_expr(), 488 av_free_expr(), 489 in favor of the functions: 490 av_expr_parse_and_eval(), 491 av_expr_parse(), 492 av_expr_eval(), 493 av_expr_free(). 494 4952010-11-08 - r25707 - lavfi 1.59.0 - avfilter_free() 496 Rename avfilter_destroy() to avfilter_free(). 497 This change breaks libavfilter API/ABI. 498 4992010-11-07 - r25705 - lavfi 1.58.0 - avfiltergraph.h 500 Remove graphparser.h header, move AVFilterInOut and 501 avfilter_graph_parse() declarations to libavfilter/avfiltergraph.h. 502 5032010-11-07 - r25700 - lavfi 1.57.0 - AVFilterInOut 504 Rename field AVFilterInOut.filter to AVFilterInOut.filter_ctx. 505 This change breaks libavfilter API. 506 5072010-11-04 - r25674 - lavfi 1.56.0 - avfilter_graph_free() 508 Rename avfilter_graph_destroy() to avfilter_graph_free(). 509 This change breaks libavfilter API/ABI. 510 5112010-11-04 - r25673 - lavfi 1.55.0 - avfilter_graph_alloc() 512 Add avfilter_graph_alloc() to libavfilter/avfiltergraph.h. 513 5142010-11-02 - r25654 - lavcore 0.12.0 - av_get_bits_per_sample_fmt() 515 Add av_get_bits_per_sample_fmt() to libavcore/samplefmt.h and 516 deprecate av_get_bits_per_sample_format(). 517 5182010-11-02 - r25653 - lavcore 0.11.0 - samplefmt.h 519 Add sample format functions in libavcore/samplefmt.h: 520 av_get_sample_fmt_name(), 521 av_get_sample_fmt(), 522 av_get_sample_fmt_string(), 523 and deprecate the corresponding libavcodec/audioconvert.h functions: 524 avcodec_get_sample_fmt_name(), 525 avcodec_get_sample_fmt(), 526 avcodec_sample_fmt_string(). 527 5282010-11-02 - r25652 - lavcore 0.10.0 - samplefmt.h 529 Define enum AVSampleFormat in libavcore/samplefmt.h, deprecate enum 530 SampleFormat. 531 5322010-10-16 - r25502 - lavfi 1.52.0 - avfilter_graph_config() 533 Add the function avfilter_graph_config() in avfiltergraph.h. 534 5352010-10-15 - r25493 - lavf 52.83.0 - metadata API 536 Change demuxers to export metadata in generic format and 537 muxers to accept generic format. Deprecate the public 538 conversion API. 539 5402010-10-10 - r25441 - lavfi 1.49.0 - AVFilterLink.time_base 541 Add time_base field to AVFilterLink. 542 5432010-09-27 - r25236 - lavu 50.31.0 - av_set_options_string() 544 Move av_set_options_string() from libavfilter/parseutils.h to 545 libavutil/opt.h. 546 5472010-09-27 - r25227 - lavfi 1.47.0 - AVFilterLink 548 Make the AVFilterLink fields srcpad and dstpad store the pointers to 549 the source and destination pads, rather than their indexes. 550 5512010-09-27 - r25225 - lavu 50.30.0 - av_get_token() 552 Move av_get_token() from libavfilter/parseutils.h to 553 libavutil/avstring.h. 554 5552010-09-26 - r32368 - lsws 0.12.0 - swscale.h 556 Add the functions sws_alloc_context() and sws_init_context(). 557 5582010-09-26 - r25210 - lavu 50.29.0 - opt.h 559 Move libavcodec/opt.h to libavutil/opt.h. 560 5612010-09-24 - r25174 - lavu 50.28.0 - av_log_set_flags() 562 Default of av_log() changed due to many problems to the old no repeat 563 detection. Read the docs of AV_LOG_SKIP_REPEATED in log.h before 564 enabling it for your app!. 565 5662010-09-24 - r25167 - lavc 52.90.0 - av_opt_show2() 567 Deprecate av_opt_show() in favor or av_opt_show2(). 568 5692010-09-14 - r25120 - lavu 50.27.0 - av_popcount() 570 Add av_popcount() to libavutil/common.h. 571 5722010-09-08 - r25076 - lavu 50.26.0 - av_get_cpu_flags() 573 Add av_get_cpu_flags(). 574 5752010-09-07 - r25067 - lavcore 0.9.0 - av_image_copy() 576 Add av_image_copy(). 577 5782010-09-07 - r25064 - lavcore 0.8.0 - av_image_copy_plane() 579 Add av_image_copy_plane(). 580 5812010-09-07 - r25057 - lavcore 0.7.0 - imgutils.h 582 Adopt hierarchical scheme for the imgutils.h function names, 583 deprecate the old names. 584 5852010-09-04 - r25040 - lavu 50.25.0 - AV_CPU_FLAG_* 586 Deprecate the FF_MM_* flags defined in libavcodec/avcodec.h in favor 587 of the AV_CPU_FLAG_* flags defined in libavutil/cpu.h. 588 5892010-08-26 - r24936 - lavc 52.87.0 - avcodec_get_channel_layout() 590 Add avcodec_get_channel_layout() in audioconvert.h. 591 5922010-08-20 - r24851 - lavcore 0.6.0 - av_fill_image_max_pixsteps() 593 Rename av_fill_image_max_pixstep() to av_fill_image_max_pixsteps(). 594 5952010-08-18 - r24827 - lavcore 0.5.0 - av_fill_image_max_pixstep() 596 Add av_fill_image_max_pixstep() in imgutils.h. 597 5982010-08-17 - r24814 - lavu 50.24.0 - AV_NE() 599 Add the AV_NE macro. 600 6012010-08-17 - r24811 - lavfi 1.36.0 - audio framework 602 Implement AVFilterBufferRefAudioProps struct for audio properties, 603 get_audio_buffer(), filter_samples() functions and related changes. 604 6052010-08-12 - r24787 - lavcore 0.4.0 - av_get_image_linesize() 606 Add av_get_image_linesize() in imgutils.h. 607 6082010-08-11 - r24773 - lavfi 1.34.0 - AVFilterBufferRef 609 Resize data and linesize arrays in AVFilterBufferRef to 8. 610 611 This change breaks libavfilter API/ABI. 612 6132010-08-11 - r24768 - lavc 52.85.0 - av_picture_data_copy() 614 Add av_picture_data_copy in avcodec.h. 615 6162010-08-11 - r24765 - lavfi 1.33.0 - avfilter_open() 617 Change avfilter_open() signature: 618 AVFilterContext *avfilter_open(AVFilter *filter, const char *inst_name) -> 619 int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name); 620 621 This change breaks libavfilter API/ABI. 622 6232010-08-11 - r24763 - lavfi 1.32.0 - AVFilterBufferRef 624 Add a type field to AVFilterBufferRef, and move video specific 625 properties to AVFilterBufferRefVideoProps. 626 627 This change breaks libavfilter API/ABI. 628 6292010-08-07 - r24732 - lavfi 1.31.0 - AVFilterLink 630 Rename AVFilterLink fields: 631 AVFilterLink.srcpic -> AVFilterLink.src_buf 632 AVFilterLink.cur_pic -> AVFilterLink.cur_buf 633 AVFilterLink.outpic -> AVFilterLink.out_buf 634 6352010-08-07 - r24731 - lavfi 1.30.0 636 Rename functions and fields: 637 avfilter_(un)ref_pic -> avfilter_(un)ref_buffer 638 avfilter_copy_picref_props -> avfilter_copy_buffer_ref_props 639 AVFilterBufferRef.pic -> AVFilterBufferRef.buffer 640 6412010-08-07 - r24730 - lavfi 1.29.0 - AVFilterBufferRef 642 Rename AVFilterPicRef to AVFilterBufferRef. 643 6442010-08-07 - r24728 - lavfi 1.28.0 - AVFilterBuffer 645 Move format field from AVFilterBuffer to AVFilterPicRef. 646 6472010-08-06 - r24709 - lavcore 0.3.0 - av_check_image_size() 648 Deprecate avcodec_check_dimensions() in favor of the function 649 av_check_image_size() defined in libavcore/imgutils.h. 650 6512010-07-30 - r24592 - lavfi 1.27.0 - AVFilterBuffer 652 Increase size of the arrays AVFilterBuffer.data and 653 AVFilterBuffer.linesize from 4 to 8. 654 655 This change breaks libavfilter ABI. 656 6572010-07-29 - r24583 - lavcore 0.2.0 - imgutils.h 658 Add functions av_fill_image_linesizes() and 659 av_fill_image_pointers(), declared in libavcore/imgutils.h. 660 6612010-07-27 - r24518 - lavcore 0.1.0 - parseutils.h 662 Deprecate av_parse_video_frame_size() and av_parse_video_frame_rate() 663 defined in libavcodec in favor of the newly added functions 664 av_parse_video_size() and av_parse_video_rate() declared in 665 libavcore/parseutils.h. 666 6672010-07-23 - r24439 - lavu 50.23.0 - mathematics.h 668 Add the M_PHI constant definition. 669 6702010-07-22 - r24424 - lavfi 1.26.0 - media format generalization 671 Add a type field to AVFilterLink. 672 673 Change the field types: 674 enum PixelFormat format -> int format in AVFilterBuffer 675 enum PixelFormat *formats -> int *formats in AVFilterFormats 676 enum PixelFormat *format -> int format in AVFilterLink 677 678 Change the function signatures: 679 AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts); -> 680 AVFilterFormats *avfilter_make_format_list(const int *fmts); 681 682 int avfilter_add_colorspace(AVFilterFormats **avff, enum PixelFormat pix_fmt); -> 683 int avfilter_add_format (AVFilterFormats **avff, int fmt); 684 685 AVFilterFormats *avfilter_all_colorspaces(void); -> 686 AVFilterFormats *avfilter_all_formats (enum AVMediaType type); 687 688 This change breaks libavfilter API/ABI. 689 6902010-07-21 - r24393 - lavcore 0.0.0 691 Add libavcore. 692 6932010-07-17 - r24291 - lavfi 1.25.0 - AVFilterBuffer 694 Remove w and h fields from AVFilterBuffer. 695 6962010-07-17 - r24284 - lavfi 1.24.0 - AVFilterBuffer 697 Rename AVFilterPic to AVFilterBuffer. 698 6992010-07-17 - r24278 - lavf 52.74.0 - url_fskip() 700 Make url_fskip() return an int error code instead of void. 701 7022010-07-11 - r24199 - lavc 52.83.0 703 Add AVCodecContext.lpc_type and AVCodecContext.lpc_passes fields. 704 Add AVLPCType enum. 705 Deprecate AVCodecContext.use_lpc. 706 7072010-07-11 - r24185 - lavc 52.82.0 - avsubtitle_free() 708 Add a function for free the contents of a AVSubtitle generated by 709 avcodec_decode_subtitle. 710 7112010-07-11 - r24174 - lavu 50.22.0 - bswap.h and intreadwrite.h 712 Make the bswap.h and intreadwrite.h API public. 713 7142010-07-08 - r24101 - lavu 50.21.0 - pixdesc.h 715 Rename read/write_line() to av_read/write_image_line(). 716 7172010-07-07 - r24091 - lavfi 1.21.0 - avfilter_copy_picref_props() 718 Add avfilter_copy_picref_props(). 719 7202010-07-03 - r24021 - lavc 52.79.0 721 Add FF_COMPLIANCE_UNOFFICIAL and change all instances of 722 FF_COMPLIANCE_INOFFICIAL to use FF_COMPLIANCE_UNOFFICIAL. 723 7242010-07-02 - r23985 - lavu 50.20.0 - lfg.h 725 Export av_lfg_init(), av_lfg_get(), av_mlfg_get(), and av_bmg_get() through 726 lfg.h. 727 7282010-06-28 - r23835 - lavfi 1.20.1 - av_parse_color() 729 Extend av_parse_color() syntax, make it accept an alpha value specifier and 730 set the alpha value to 255 by default. 731 7322010-06-22 - r23706 - lavf 52.71.0 - URLProtocol.priv_data_size, priv_data_class 733 Add priv_data_size and priv_data_class to URLProtocol. 734 7352010-06-22 - r23704 - lavf 52.70.0 - url_alloc(), url_connect() 736 Add url_alloc() and url_connect(). 737 7382010-06-22 - r23702 - lavf 52.69.0 - av_register_protocol2() 739 Add av_register_protocol2(), deprecating av_register_protocol(). 740 7412010-06-09 - r23551 - lavu 50.19.0 - av_compare_mod() 742 Add av_compare_mod() to libavutil/mathematics.h. 743 7442010-06-05 - r23485 - lavu 50.18.0 - eval API 745 Make the eval API public. 746 7472010-06-04 - r23461 - lavu 50.17.0 - AV_BASE64_SIZE 748 Add AV_BASE64_SIZE() macro. 749 7502010-06-02 - r23421 - lavc 52.73.0 - av_get_codec_tag_string() 751 Add av_get_codec_tag_string(). 752 7532010-06-01 - r31301 - lsws 0.11.0 - convertPalette API 754 Add sws_convertPalette8ToPacked32() and sws_convertPalette8ToPacked24(). 755 7562010-05-26 - r23334 - lavc 52.72.0 - CODEC_CAP_EXPERIMENTAL 757 Add CODEC_CAP_EXPERIMENTAL flag. 758 NOTE: this was backported to 0.6 759 7602010-05-23 - r23255 - lavu 50.16.0 - av_get_random_seed() 761 Add av_get_random_seed(). 762 7632010-05-18 - r23161 - lavf 52.63.0 - AVFMT_FLAG_RTP_HINT 764 Add AVFMT_FLAG_RTP_HINT as possible value for AVFormatContext.flags. 765 NOTE: this was backported to 0.6 766 7672010-05-09 - r23066 - lavfi 1.20.0 - AVFilterPicRef 768 Add interlaced and top_field_first fields to AVFilterPicRef. 769 770------------------------------8<------------------------------------- 771 0.6 branch was cut here 772----------------------------->8-------------------------------------- 773 7742010-05-01 - r23002 - lavf 52.62.0 - probe function 775 Add av_probe_input_format2 to API, it allows ignoring probe 776 results below given score and returns the actual probe score. 777 7782010-04-01 - r22806 - lavf 52.61.0 - metadata API 779 Add a flag for av_metadata_set2() to disable overwriting of 780 existing tags. 781 7822010-04-01 - r22753 - lavc 52.66.0 783 Add avcodec_get_edge_width(). 784 7852010-03-31 - r22750 - lavc 52.65.0 786 Add avcodec_copy_context(). 787 7882010-03-31 - r22748 - lavf 52.60.0 - av_match_ext() 789 Make av_match_ext() public. 790 7912010-03-31 - r22736 - lavu 50.14.0 - AVMediaType 792 Move AVMediaType enum from libavcodec to libavutil. 793 7942010-03-31 - r22735 - lavc 52.64.0 - AVMediaType 795 Define AVMediaType enum, and use it instead of enum CodecType, which 796 is deprecated and will be dropped at the next major bump. 797 7982010-03-25 - r22684 - lavu 50.13.0 - av_strerror() 799 Implement av_strerror(). 800 8012010-03-23 - r22649 - lavc 52.60.0 - av_dct_init() 802 Support DCT-I and DST-I. 803 8042010-03-15 - r22540 - lavf 52.56.0 - AVFormatContext.start_time_realtime 805 Add AVFormatContext.start_time_realtime field. 806 8072010-03-13 - r22506 - lavfi 1.18.0 - AVFilterPicRef.pos 808 Add AVFilterPicRef.pos field. 809 8102010-03-13 - r22501 - lavu 50.12.0 - error.h 811 Move error code definitions from libavcodec/avcodec.h to 812 the new public header libavutil/error.h. 813 8142010-03-07 - r22291 - lavc 52.56.0 - avfft.h 815 Add public FFT interface. 816 8172010-03-06 - r22251 - lavu 50.11.0 - av_stristr() 818 Add av_stristr(). 819 8202010-03-03 - r22174 - lavu 50.10.0 - av_tree_enumerate() 821 Add av_tree_enumerate(). 822 8232010-02-07 - r21673 - lavu 50.9.0 - av_compare_ts() 824 Add av_compare_ts(). 825 8262010-02-05 - r30513 - lsws 0.10.0 - sws_getCoefficients() 827 Add sws_getCoefficients(). 828 8292010-02-01 - r21587 - lavf 52.50.0 - metadata API 830 Add a list of generic tag names, change 'author' -> 'artist', 831 'year' -> 'date'. 832 8332010-01-30 - r21545 - lavu 50.8.0 - av_get_pix_fmt() 834 Add av_get_pix_fmt(). 835 8362010-01-21 - r30381 - lsws 0.9.0 - sws_scale() 837 Change constness attributes of sws_scale() parameters. 838 8392010-01-10 - r21121 - lavfi 1.15.0 - avfilter_graph_config_links() 840 Add a log_ctx parameter to avfilter_graph_config_links(). 841 8422010-01-07 - r30236 - lsws 0.8.0 - sws_isSupported{In,Out}put() 843 Add sws_isSupportedInput() and sws_isSupportedOutput() functions. 844 8452010-01-06 - r21035 - lavfi 1.14.0 - avfilter_add_colorspace() 846 Change the avfilter_add_colorspace() signature, make it accept an 847 (AVFilterFormats **) rather than an (AVFilterFormats *) as before. 848 8492010-01-03 - r21007 - lavfi 1.13.0 - avfilter_add_colorspace() 850 Add avfilter_add_colorspace(). 851 8522010-01-02 - r20998 - lavf 52.46.0 - av_match_ext() 853 Add av_match_ext(), it should be used in place of match_ext(). 854 8552010-01-01 - r20991 - lavf 52.45.0 - av_guess_format() 856 Add av_guess_format(), it should be used in place of guess_format(). 857 8582009-12-13 - r20834 - lavf 52.43.0 - metadata API 859 Add av_metadata_set2(), AV_METADATA_DONT_STRDUP_KEY and 860 AV_METADATA_DONT_STRDUP_VAL. 861 8622009-12-13 - r20829 - lavu 50.7.0 - avstring.h API 863 Add av_d2str(). 864 8652009-12-13 - r20826 - lavc 52.42.0 - AVStream 866 Add avg_frame_rate. 867 8682009-12-12 - r20808 - lavu 50.6.0 - av_bmg_next() 869 Introduce the av_bmg_next() function. 870 8712009-12-05 - r20734 - lavfi 1.12.0 - avfilter_draw_slice() 872 Add a slice_dir parameter to avfilter_draw_slice(). 873 8742009-11-26 - r20611 - lavfi 1.11.0 - AVFilter 875 Remove the next field from AVFilter, this is not anymore required. 876 8772009-11-25 - r20607 - lavfi 1.10.0 - avfilter_next() 878 Introduce the avfilter_next() function. 879 8802009-11-25 - r20605 - lavfi 1.9.0 - avfilter_register() 881 Change the signature of avfilter_register() to make it return an 882 int. This is required since now the registration operation may fail. 883 8842009-11-25 - r20603 - lavu 50.5.0 - pixdesc.h API 885 Make the pixdesc.h API public. 886 8872009-10-27 - r20385 - lavfi 1.5.0 - AVFilter.next 888 Add a next field to AVFilter, this is used for simplifying the 889 registration and management of the registered filters. 890 8912009-10-23 - r20356 - lavfi 1.4.1 - AVFilter.description 892 Add a description field to AVFilter. 893 8942009-10-19 - r20302 - lavfi 1.3.0 - avfilter_make_format_list() 895 Change the interface of avfilter_make_format_list() from 896 avfilter_make_format_list(int n, ...) to 897 avfilter_make_format_list(enum PixelFormat *pix_fmts). 898 8992009-10-18 - r20272 - lavfi 1.0.0 - avfilter_get_video_buffer() 900 Make avfilter_get_video_buffer() recursive and add the w and h 901 parameters to it. 902 9032009-10-07 - r20189 - lavfi 0.5.1 - AVFilterPic 904 Add w and h fields to AVFilterPic. 905 9062009-06-22 - r19250 - lavf 52.34.1 - AVFormatContext.packet_size 907 This is now an unsigned int instead of a signed int. 908 9092009-06-19 - r19222 - lavc 52.32.0 - AVSubtitle.pts 910 Add a pts field to AVSubtitle which gives the subtitle packet pts 911 in AV_TIME_BASE. Some subtitle de-/encoders (e.g. XSUB) will 912 not work right without this. 913 9142009-06-03 - r19078 - lavc 52.30.2 - AV_PKT_FLAG_KEY 915 PKT_FLAG_KEY has been deprecated and will be dropped at the next 916 major version. Use AV_PKT_FLAG_KEY instead. 917 9182009-06-01 - r19025 - lavc 52.30.0 - av_lockmgr_register() 919 av_lockmgr_register() can be used to register a callback function 920 that lavc (and in the future, libraries that depend on lavc) can use 921 to implement mutexes. The application should provide a callback function 922 that implements the AV_LOCK_* operations described in avcodec.h. 923 When the lock manager is registered, FFmpeg is guaranteed to behave 924 correctly in a multi-threaded application. 925 9262009-04-30 - r18719 - lavc 52.28.0 - av_free_packet() 927 av_free_packet() is no longer an inline function. It is now exported. 928 9292009-04-11 - r18431 - lavc 52.25.0 - deprecate av_destruct_packet_nofree() 930 Please use NULL instead. This has been supported since r16506 931 (lavf > 52.23.1, lavc > 52.10.0). 932 9332009-04-07 - r18351 - lavc 52.23.0 - avcodec_decode_video/audio/subtitle 934 The old decoding functions are deprecated, all new code should use the 935 new functions avcodec_decode_video2(), avcodec_decode_audio3() and 936 avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt 937 argument instead of a const uint8_t *buf / int buf_size pair. 938 9392009-04-03 - r18321 - lavu 50.3.0 - av_fifo_space() 940 Introduce the av_fifo_space() function. 941 9422009-04-02 - r18317 - lavc 52.23.0 - AVPacket 943 Move AVPacket declaration from libavformat/avformat.h to 944 libavcodec/avcodec.h. 945 9462009-03-22 - r18163 - lavu 50.2.0 - RGB32 pixel formats 947 Convert the pixel formats PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR, 948 PIX_FMT_BGRA, which were defined as macros, into enum PixelFormat values. 949 Conversely PIX_FMT_RGB32, PIX_FMT_RGB32_1, PIX_FMT_BGR32 and 950 PIX_FMT_BGR32_1 are now macros. 951 avcodec_get_pix_fmt() now recognizes the "rgb32" and "bgr32" aliases. 952 Re-sort the enum PixelFormat list accordingly. 953 This change breaks API/ABI backward compatibility. 954 9552009-03-22 - r18133 - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants 956 Add the enum PixelFormat values: 957 PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE, 958 PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE. 959 9602009-03-21 - r18116 - lavu 50.0.0 - av_random* 961 The Mersenne Twister PRNG implemented through the av_random* functions 962 was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions 963 instead. 964 9652009-03-08 - r17869 - lavu 50.0.0 - AVFifoBuffer 966 av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped 967 and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write 968 and av_fifo_realloc2. 969 In addition, the order of the function arguments of av_fifo_generic_read 970 was changed to match av_fifo_generic_write. 971 The AVFifoBuffer/struct AVFifoBuffer may only be used in an opaque way by 972 applications, they may not use sizeof() or directly access members. 973 9742009-03-01 - r17682 - lavf 52.31.0 - Generic metadata API 975 Introduce a new metadata API (see av_metadata_get() and friends). 976 The old API is now deprecated and should not be used anymore. This especially 977 includes the following structure fields: 978 - AVFormatContext.title 979 - AVFormatContext.author 980 - AVFormatContext.copyright 981 - AVFormatContext.comment 982 - AVFormatContext.album 983 - AVFormatContext.year 984 - AVFormatContext.track 985 - AVFormatContext.genre 986 - AVStream.language 987 - AVStream.filename 988 - AVProgram.provider_name 989 - AVProgram.name 990 - AVChapter.title 991