1 Never assume the API of libav* to be stable unless at least 1 month has passed
2 since the last major version increase.
4 The last version increases were:
6 libavdevice: 2011-04-18
7 libavfilter: 2011-04-18
8 libavformat: 2011-04-18
9 libpostproc: 2011-04-18
10 libswscale: 2011-06-20
14 API changes, most recent first:
16 2012-01-24 - xxxxxxx - lavfi 2.60.100
17 Add avfilter_graph_dump.
19 2012-01-15 - lavc 53.34.0
20 New audio encoding API:
21 b2c75b6 Add CODEC_CAP_VARIABLE_FRAME_SIZE capability for use by audio
23 5ee5fa0 Add avcodec_fill_audio_frame() as a convenience function.
24 b2c75b6 Add avcodec_encode_audio2() and deprecate avcodec_encode_audio().
25 Add AVCodec.encode2().
27 2012-01-12 - 3167dc9 - lavfi 2.15.0
28 Add a new installed header -- libavfilter/version.h -- with version macros.
30 2011-12-08 - a502939 - lavfi 2.52.0
31 Add av_buffersink_poll_frame() to buffersink.h.
33 2011-12-08 - xxxxxxx - lavu 51.31.0
34 Add av_log_format_line.
36 2011-12-03 - xxxxxxx - lavu 51.30.0
39 2011-xx-xx - xxxxxxx - lavu 51.28.1
40 Add av_get_alt_sample_fmt() to samplefmt.h.
42 2011-11-03 - 96949da - lavu 51.23.0
43 Add av_strcasecmp() and av_strncasecmp() to avstring.h.
45 2011-10-20 - b35e9e1 - lavu 51.22.0
46 Add av_strtok() to avstring.h.
48 2011-01-03 - b73ec05 - lavu 51.21.0
51 2011-12-18 - 8400b12 - lavc 53.28.1
52 Deprecate AVFrame.age. The field is unused.
54 2011-12-12 - 5266045 - lavf 53.17.0
55 Add avformat_close_input().
56 Deprecate av_close_input_file() and av_close_input_stream().
58 2011-12-02 - 0eea212 - lavc 53.25.0
59 Add nb_samples and extended_data fields to AVFrame.
60 Deprecate AVCODEC_MAX_AUDIO_FRAME_SIZE.
61 Deprecate avcodec_decode_audio3() in favor of avcodec_decode_audio4().
62 avcodec_decode_audio4() writes output samples to an AVFrame, which allows
63 audio decoders to use get_buffer().
65 2011-12-04 - 560f773 - lavc 53.24.0
66 Change AVFrame.data[4]/base[4]/linesize[4]/error[4] to [8] at next major bump.
67 Change AVPicture.data[4]/linesize[4] to [8] at next major bump.
68 Change AVCodecContext.error[4] to [8] at next major bump.
69 Add AV_NUM_DATA_POINTERS to simplify the bump transition.
71 2011-11-23 - bbb46f3 - lavu 51.18.0
72 Add av_samples_get_buffer_size(), av_samples_fill_arrays(), and
73 av_samples_alloc(), to samplefmt.h.
75 2011-11-23 - 8889cc4 - lavu 51.17.0
76 Add planar sample formats and av_sample_fmt_is_planar() to samplefmt.h.
78 2011-11-19 - f3a29b7 - lavc 53.21.0
79 Move some AVCodecContext fields to a new private struct, AVCodecInternal,
80 which is accessed from a new field, AVCodecContext.internal.
82 AVCodecContext.internal_buffer --> AVCodecInternal.buffer
83 AVCodecContext.internal_buffer_count --> AVCodecInternal.buffer_count
84 AVCodecContext.is_copy --> AVCodecInternal.is_copy
86 2011-11-16 - 6270671 - lavu 51.16.0
89 2011-11-13 - lavf 53.15.0
90 New interrupt callback API, allowing per-AVFormatContext/AVIOContext
92 6aa0b98 Add AVIOInterruptCB struct and the interrupt_callback field to
94 1dee0ac Add avio_open2() with additional parameters. Those are
95 an interrupt callback and an options AVDictionary.
96 This will allow passing AVOptions to protocols after lavf
99 2011-11-06 - ba04ecf - lavu 51.14.0
100 Add av_strcasecmp() and av_strncasecmp() to avstring.h.
102 2011-11-06 - 07b172f - lavu 51.13.0
103 Add av_toupper()/av_tolower()
105 2011-11-05 - b6d08f4 - lavf 53.13.0
106 Add avformat_network_init()/avformat_network_uninit()
108 2011-10-27 - 512557b - lavc 53.15.0
109 Remove avcodec_parse_frame.
110 Deprecate AVCodecContext.parse_only and CODEC_CAP_PARSE_ONLY.
112 2011-10-19 - 569129a - lavf 53.10.0
113 Add avformat_new_stream(). Deprecate av_new_stream().
115 2011-10-13 - b631fba - lavf 53.9.0
116 Add AVFMT_NO_BYTE_SEEK AVInputFormat flag.
118 2011-10-12 - lavu 51.12.0
119 AVOptions API rewrite.
121 - 145f741 FF_OPT_TYPE* renamed to AV_OPT_TYPE_*
122 - new setting/getting functions with slightly different semantics:
123 dac66da av_set_string3 -> av_opt_set
124 av_set_double -> av_opt_set_double
125 av_set_q -> av_opt_set_q
126 av_set_int -> av_opt_set_int
128 41d9d51 av_get_string -> av_opt_get
129 av_get_double -> av_opt_get_double
130 av_get_q -> av_opt_get_q
131 av_get_int -> av_opt_get_int
133 - 8c5dcaa trivial rename av_next_option -> av_opt_next
134 - 641c7af new functions - av_opt_child_next, av_opt_child_class_next
137 2011-09-22 - a70e787 - lavu 51.17.0
140 2011-09-18 - 645cebb - lavc 53.16.0
143 2011-09-16 - ea8de10 - lavfi 2.42.0
144 Add avfilter_all_channel_layouts.
146 2011-09-16 - 9899037 - lavfi 2.41.0
147 Rename avfilter_all_* function names to avfilter_make_all_*.
149 In particular, apply the renames:
150 avfilter_all_formats -> avfilter_make_all_formats
151 avfilter_all_channel_layouts -> avfilter_make_all_channel_layouts
152 avfilter_all_packing_formats -> avfilter_make_all_packing_formats
154 2011-09-12 - 4381bdd - lavfi 2.40.0
155 Change AVFilterBufferRefAudioProps.sample_rate type from uint32_t to int.
157 2011-09-12 - 2c03174 - lavfi 2.40.0
158 Simplify signature for avfilter_get_audio_buffer(), make it
159 consistent with avfilter_get_video_buffer().
161 2011-09-06 - 4f7dfe1 - lavfi 2.39.0
162 Rename libavfilter/vsink_buffer.h to libavfilter/buffersink.h.
164 2011-09-06 - c4415f6 - lavfi 2.38.0
165 Unify video and audio sink API.
167 In particular, add av_buffersink_get_buffer_ref(), deprecate
168 av_vsink_buffer_get_video_buffer_ref() and change the value for the
169 opaque field passed to the abuffersink init function.
171 2011-09-04 - 61e2e29 - lavu 51.16.0
174 2011-08-22 - dacd827 - lavf 53.10.0
175 Add av_find_program_from_stream().
177 2011-08-20 - 69e2c1a - lavu 51.13.0
178 Add av_get_media_type_string().
180 2011-09-03 - fb4ca26 - lavc 53.13.0
183 Add {avcodec,avformat,sws}_get_class().
185 2011-08-03 - c11fb82 - lavu 51.15.0
186 Add AV_OPT_SEARCH_FAKE_OBJ flag for av_opt_find() function.
188 2011-08-14 - 323b930 - lavu 51.12.0
189 Add av_fifo_peek2(), deprecate av_fifo_peek().
191 2011-08-26 - lavu 51.9.0
192 - add41de..abc78a5 Do not include intfloat_readwrite.h,
193 mathematics.h, rational.h, pixfmt.h, or log.h from avutil.h.
195 2011-08-16 - 48f9e45 - lavf 53.8.0
196 Add avformat_query_codec().
198 2011-08-16 - bca06e7 - lavc 53.11.0
199 Add avcodec_get_type().
201 2011-08-06 - 2f63440 - lavf 53.7.0
202 Add error_recognition to AVFormatContext.
204 2011-08-02 - 9d39cbf - lavc 53.9.1
205 Add AV_PKT_FLAG_CORRUPT AVPacket flag.
207 2011-07-16 - b57df29 - lavfi 2.27.0
208 Add audio packing negotiation fields and helper functions.
210 In particular, add AVFilterPacking enum, planar, in_packings and
211 out_packings fields to AVFilterLink, and the functions:
212 avfilter_set_common_packing_formats()
213 avfilter_all_packing_formats()
215 2011-07-10 - a67c061 - lavf 53.6.0
216 Add avformat_find_stream_info(), deprecate av_find_stream_info().
218 2011-07-10 - 0b950fe - lavc 53.8.0
219 Add avcodec_open2(), deprecate avcodec_open().
221 2011-07-01 - b442ca6 - lavf 53.5.0 - avformat.h
222 Add function av_get_output_timestamp().
224 2011-06-28 - 5129336 - lavu 51.11.0 - avutil.h
225 Define the AV_PICTURE_TYPE_NONE value in AVPictureType enum.
227 2011-06-19 - fd2c0a5 - lavfi 2.23.0 - avfilter.h
228 Add layout negotiation fields and helper functions.
230 In particular, add in_chlayouts and out_chlayouts to AVFilterLink,
232 avfilter_set_common_sample_formats()
233 avfilter_set_common_channel_layouts()
234 avfilter_all_channel_layouts()
236 2011-06-19 - 527ca39 - lavfi 2.22.0 - AVFilterFormats
237 Change type of AVFilterFormats.formats from int * to int64_t *,
238 and update formats handling API accordingly.
240 avfilter_make_format_list() still takes a int32_t array and converts
241 it to int64_t. A new function, avfilter_make_format64_list(), that
242 takes int64_t arrays has been added.
244 2011-06-19 - 44f669e - lavfi 2.21.0 - vsink_buffer.h
245 Add video sink buffer and vsink_buffer.h public header.
247 2011-06-12 - 9fdf772 - lavfi 2.18.0 - avcodec.h
248 Add avfilter_get_video_buffer_ref_from_frame() function in
249 libavfilter/avcodec.h.
251 2011-06-12 - c535494 - lavfi 2.17.0 - avfiltergraph.h
252 Add avfilter_inout_alloc() and avfilter_inout_free() functions.
254 2011-06-12 - 6119b23 - lavfi 2.16.0 - avfilter_graph_parse()
255 Change avfilter_graph_parse() signature.
257 2011-06-23 - 67e9ae1 - lavu 51.8.0 - attributes.h
258 Add av_printf_format().
260 2011-06-16 - 05e84c9, 25de595 - lavf 53.2.0 - avformat.h
261 Add avformat_open_input and avformat_write_header().
262 Deprecate av_open_input_stream, av_open_input_file,
263 AVFormatParameters and av_write_header.
265 2011-06-16 - 7e83e1c, dc59ec5 - lavu 51.7.0 - opt.h
266 Add av_opt_set_dict() and av_opt_find().
267 Deprecate av_find_opt().
268 Add AV_DICT_APPEND flag.
270 2011-06-10 - cb7c11c - lavu 51.6.0 - opt.h
271 Add av_opt_flag_is_set().
273 2011-06-10 - c381960 - lavfi 2.15.0 - avfilter_get_audio_buffer_ref_from_arrays
274 Add avfilter_get_audio_buffer_ref_from_arrays() to avfilter.h.
276 2011-06-09 - d9f80ea - lavu 51.8.0 - AVMetadata
277 Move AVMetadata from lavf to lavu and rename it to
278 AVDictionary -- new installed header dict.h.
279 All av_metadata_* functions renamed to av_dict_*.
281 2011-06-07 - a6703fa - lavu 51.8.0 - av_get_bytes_per_sample()
282 Add av_get_bytes_per_sample() in libavutil/samplefmt.h.
283 Deprecate av_get_bits_per_sample_fmt().
285 2011-06-05 - b39b062 - lavu 51.8.0 - opt.h
286 Add av_opt_free convenience function.
288 2011-06-06 - 95a0242 - lavfi 2.14.0 - AVFilterBufferRefAudioProps
289 Remove AVFilterBufferRefAudioProps.size, and use nb_samples in
290 avfilter_get_audio_buffer() and avfilter_default_get_audio_buffer() in
293 2011-06-06 - 0bc2cca - lavu 51.6.0 - av_samples_alloc()
294 Switch nb_channels and nb_samples parameters order in
297 2011-06-06 - e1c7414 - lavu 51.5.0 - av_samples_*
298 Change the data layout created by av_samples_fill_arrays() and
301 2011-06-06 - 27bcf55 - lavfi 2.13.0 - vsrc_buffer.h
302 Make av_vsrc_buffer_add_video_buffer_ref() accepts an additional
303 flags parameter in input.
305 2011-06-03 - e977ca2 - lavfi 2.12.0 - avfilter_link_free()
306 Add avfilter_link_free() function.
308 2011-06-02 - 5ad38d9 - lavu 51.4.0 - av_force_cpu_flags()
309 Add av_cpu_flags() in libavutil/cpu.h.
311 2011-05-28 - e71f260 - lavu 51.3.0 - pixdesc.h
312 Add av_get_pix_fmt_name() in libavutil/pixdesc.h, and deprecate
313 avcodec_get_pix_fmt_name() in libavcodec/avcodec.h in its favor.
315 2011-05-25 - 30315a8 - lavf 53.3.0 - avformat.h
316 Add fps_probe_size to AVFormatContext.
318 2011-05-22 - 5ecdfd0 - lavf 53.2.0 - avformat.h
319 Introduce avformat_alloc_output_context2() and deprecate
320 avformat_alloc_output_context().
322 2011-05-22 - 83db719 - lavfi 2.10.0 - vsrc_buffer.h
323 Make libavfilter/vsrc_buffer.h public.
325 2011-05-19 - c000a9f - lavfi 2.8.0 - avcodec.h
326 Add av_vsrc_buffer_add_frame() to libavfilter/avcodec.h.
328 2011-05-14 - 9fdf772 - lavfi 2.6.0 - avcodec.h
329 Add avfilter_get_video_buffer_ref_from_frame() to libavfilter/avcodec.h.
331 2011-05-18 - 64150ff - lavc 53.7.0 - AVCodecContext.request_sample_fmt
332 Add request_sample_fmt field to AVCodecContext.
334 2011-05-10 - 188dea1 - lavc 53.6.0 - avcodec.h
335 Deprecate AVLPCType and the following fields in
336 AVCodecContext: lpc_coeff_precision, prediction_order_method,
337 min_partition_order, max_partition_order, lpc_type, lpc_passes.
338 Corresponding FLAC encoder options should be used instead.
340 2011-05-07 - 9fdf772 - lavfi 2.5.0 - avcodec.h
341 Add libavfilter/avcodec.h header and avfilter_copy_frame_props()
344 2011-05-07 - 18ded93 - lavc 53.5.0 - AVFrame
345 Add format field to AVFrame.
347 2011-05-07 - 22333a6 - lavc 53.4.0 - AVFrame
348 Add width and height fields to AVFrame.
350 2011-05-01 - 35fe66a - lavfi 2.4.0 - avfilter.h
351 Rename AVFilterBufferRefVideoProps.pixel_aspect to
354 2011-05-01 - 77e9dee - lavc 53.3.0 - AVFrame
355 Add a sample_aspect_ratio field to AVFrame.
357 2011-05-01 - 1ba5727 - lavc 53.2.0 - AVFrame
358 Add a pkt_pos field to AVFrame.
360 2011-04-29 - 35ceaa7 - lavu 51.2.0 - mem.h
361 Add av_dynarray_add function for adding
362 an element to a dynamic array.
364 2011-04-26 - bebe72f - lavu 51.1.0 - avutil.h
365 Add AVPictureType enum and av_get_picture_type_char(), deprecate
366 FF_*_TYPE defines and av_get_pict_type_char() defined in
367 libavcodec/avcodec.h.
369 2011-04-26 - 10d3940 - lavfi 2.3.0 - avfilter.h
370 Add pict_type and key_frame fields to AVFilterBufferRefVideo.
372 2011-04-26 - 7a11c82 - lavfi 2.2.0 - vsrc_buffer
373 Add sample_aspect_ratio fields to vsrc_buffer arguments
375 2011-04-21 - 94f7451 - lavc 53.1.0 - avcodec.h
376 Add CODEC_CAP_SLICE_THREADS for codecs supporting sliced threading.
378 2011-04-15 - lavc 52.120.0 - avcodec.h
379 AVPacket structure got additional members for passing side information:
380 4de339e introduce side information for AVPacket
381 2d8591c make containers pass palette change in AVPacket
383 2011-04-12 - lavf 52.107.0 - avio.h
384 Avio cleanup, part II - deprecate the entire URLContext API:
385 175389c add avio_check as a replacement for url_exist
386 ff1ec0c add avio_pause and avio_seek_time as replacements
387 for _av_url_read_fseek/fpause
388 cdc6a87 deprecate av_protocol_next(), avio_enum_protocols
389 should be used instead.
390 80c6e23 rename url_set_interrupt_cb->avio_set_interrupt_cb.
391 f87b1b3 rename open flags: URL_* -> AVIO_*
392 f8270bb add avio_enum_protocols.
393 5593f03 deprecate URLProtocol.
394 c486dad deprecate URLContext.
395 026e175 deprecate the typedef for URLInterruptCB
396 8e76a19 deprecate av_register_protocol2.
397 b840484 deprecate URL_PROTOCOL_FLAG_NESTED_SCHEME
398 1305d93 deprecate av_url_read_seek
399 fa104e1 deprecate av_url_read_pause
400 727c7aa deprecate url_get_filename().
401 5958df3 deprecate url_max_packet_size().
402 1869ea0 deprecate url_get_file_handle().
403 32a97d4 deprecate url_filesize().
404 e52a914 deprecate url_close().
405 58a48c6 deprecate url_seek().
406 925e908 deprecate url_write().
407 dce3756 deprecate url_read_complete().
408 bc371ac deprecate url_read().
409 0589da0 deprecate url_open().
410 62eaaea deprecate url_connect.
411 5652bb9 deprecate url_alloc.
412 333e894 deprecate url_open_protocol
413 e230705 deprecate url_poll and URLPollEntry
415 2011-04-08 - lavf 52.106.0 - avformat.h
416 Minor avformat.h cleanup:
417 a9bf9d8 deprecate av_guess_image2_codec
418 c3675df rename avf_sdp_create->av_sdp_create
420 2011-04-03 - lavf 52.105.0 - avio.h
421 Large-scale renaming/deprecating of AVIOContext-related functions:
422 724f6a0 deprecate url_fdopen
423 403ee83 deprecate url_open_dyn_packet_buf
424 6dc7d80 rename url_close_dyn_buf -> avio_close_dyn_buf
425 b92c545 rename url_open_dyn_buf -> avio_open_dyn_buf
426 8978fed introduce an AVIOContext.seekable field as a replacement for
427 AVIOContext.is_streamed and url_is_streamed()
428 b64030f deprecate get_checksum()
429 4c4427a deprecate init_checksum()
430 4ec153b deprecate udp_set_remote_url/get_local_port
431 933e90a deprecate av_url_read_fseek/fpause
432 8d9769a deprecate url_fileno
433 b7f2fdd rename put_flush_packet -> avio_flush
434 35f1023 deprecate url_close_buf
435 83fddae deprecate url_open_buf
436 d9d86e0 rename url_fprintf -> avio_printf
437 59f65d9 deprecate url_setbufsize
438 3e68b3b deprecate url_ferror
439 e8bb2e2 deprecate url_fget_max_packet_size
440 76aa876 rename url_fsize -> avio_size
441 e519753 deprecate url_fgetc
442 655e45e deprecate url_fgets
443 a2704c9 rename url_ftell -> avio_tell
444 e16ead0 deprecate get_strz() in favor of avio_get_str
445 0300db8,2af07d3 rename url_fskip -> avio_skip
446 6b4aa5d rename url_fseek -> avio_seek
447 61840b4 deprecate put_tag
448 22a3212 rename url_fopen/fclose -> avio_open/close.
449 0ac8e2b deprecate put_nbyte
450 77eb550 rename put_byte -> avio_w8
451 put_[b/l]e<type> -> avio_w[b/l]<type>
452 put_buffer -> avio_write
453 b7effd4 rename get_byte -> avio_r8,
454 get_[b/l]e<type> -> avio_r[b/l]<type>
455 get_buffer -> avio_read
456 b3db9ce deprecate get_partial_buffer
457 8d9ac96 rename av_alloc_put_byte -> avio_alloc_context
459 2011-03-25 - 34b47d7 - lavc 52.115.0 - AVCodecContext.audio_service_type
460 Add audio_service_type field to AVCodecContext.
462 2011-03-17 - e309fdc - lavu 50.40.0 - pixfmt.h
463 Add PIX_FMT_BGR48LE and PIX_FMT_BGR48BE pixel formats
465 2011-03-02 - 863c471 - lavf 52.103.0 - av_pkt_dump2, av_pkt_dump_log2
466 Add new functions av_pkt_dump2, av_pkt_dump_log2 that uses the
467 source stream timebase for outputting timestamps. Deprecate
468 av_pkt_dump and av_pkt_dump_log.
470 2011-02-20 - e731b8d - lavf 52.102.0 - avio.h
471 * e731b8d - rename init_put_byte() to ffio_init_context(), deprecating the
472 original, and move it to a private header so it is no longer
473 part of our public API. Instead, use av_alloc_put_byte().
474 * ae628ec - rename ByteIOContext to AVIOContext.
476 2011-02-16 - 09d171b - lavf 52.101.0 - avformat.h
477 lavu 52.39.0 - parseutils.h
478 * 610219a - Add av_ prefix to dump_format().
479 * f6c7375 - Replace parse_date() in lavf with av_parse_time() in lavu.
480 * ab0287f - Move find_info_tag from lavf to lavu and add av_prefix to it.
482 2011-02-15 - lavu 52.38.0 - merge libavcore
483 libavcore is merged back completely into libavutil
485 2011-02-10 - 55bad0c - lavc 52.113.0 - vbv_delay
486 Add vbv_delay field to AVCodecContext
488 2011-02-14 - 24a83bd - lavf 52.100.0 - AV_DISPOSITION_CLEAN_EFFECTS
489 Add AV_DISPOSITION_CLEAN_EFFECTS disposition flag.
491 2011-02-14 - 910b5b8 - lavfi 1.76.0 - AVFilterLink sample_aspect_ratio
492 Add sample_aspect_ratio field to AVFilterLink.
494 2011-02-10 - 12c14cd - lavf 52.99.0 - AVStream.disposition
495 Add AV_DISPOSITION_HEARING_IMPAIRED and AV_DISPOSITION_VISUAL_IMPAIRED.
497 2011-02-09 - 5592734 - lavc 52.112.0 - avcodec_thread_init()
498 Deprecate avcodec_thread_init()/avcodec_thread_free() use; instead
499 set thread_count before calling avcodec_open.
501 2011-02-09 - 778b08a - lavc 52.111.0 - threading API
502 Add CODEC_CAP_FRAME_THREADS with new restrictions on get_buffer()/
503 release_buffer()/draw_horiz_band() callbacks for appropriate codecs.
504 Add thread_type and active_thread_type fields to AVCodecContext.
506 2011-02-08 - 3940caa - lavf 52.98.0 - av_probe_input_buffer
507 Add av_probe_input_buffer() to avformat.h for probing format from a
510 2011-02-06 - fe174fc - lavf 52.97.0 - avio.h
511 Add flag for non-blocking protocols: URL_FLAG_NONBLOCK
513 2011-02-04 - f124b08 - lavf 52.96.0 - avformat_free_context()
514 Add avformat_free_context() in avformat.h.
516 2011-02-03 - f5b82f4 - lavc 52.109.0 - add CODEC_ID_PRORES
517 Add CODEC_ID_PRORES to avcodec.h.
519 2011-02-03 - fe9a3fb - lavc 52.109.0 - H.264 profile defines
520 Add defines for H.264 * Constrained Baseline and Intra profiles
522 2011-02-02 - lavf 52.95.0
523 * 50196a9 - add a new installed header version.h.
524 * 4efd5cf, dccbd97, 93b78d1 - add several variants of public
525 avio_{put,get}_str* functions. Deprecate corresponding semi-public
528 2011-02-02 - dfd2a00 - lavu 50.37.0 - log.h
531 2011-01-31 - 7b3ea55 - lavfi 1.76.0 - vsrc_buffer
532 Add sample_aspect_ratio fields to vsrc_buffer arguments
534 2011-01-31 - 910b5b8 - lavfi 1.75.0 - AVFilterLink sample_aspect_ratio
535 Add sample_aspect_ratio field to AVFilterLink.
537 2011-01-15 - r26374 - lavfi 1.74.0 - AVFilterBufferRefAudioProps
538 Rename AVFilterBufferRefAudioProps.samples_nb to nb_samples.
540 2011-01-14 - r26330 - lavf 52.93.0 - av_metadata_copy()
541 Add av_metadata_copy() in avformat.h.
543 2011-01-07 - r26262 - lavc 52.107.0 - deprecate reordered_opaque
544 Deprecate reordered_opaque in favor of pkt_pts/dts.
546 2011-01-07 - r26261 - lavc 52.106.0 - pkt_dts
547 Add pkt_dts to AVFrame, this will in the future allow multithreading decoders
550 2011-01-07 - r26260 - lavc 52.105.0 - pkt_pts
551 Add pkt_pts to AVFrame.
553 2011-01-07 - r26259 - lavc 52.104.0 - av_get_profile_name()
554 Add av_get_profile_name to libavcodec/avcodec.h.
556 2010-12-27 - r26108 - lavfi 1.71.0 - AV_PERM_NEG_LINESIZES
557 Add AV_PERM_NEG_LINESIZES in avfilter.h.
559 2010-12-27 - r26104 - lavf 52.91.0 - av_find_best_stream()
560 Add av_find_best_stream to libavformat/avformat.h.
562 2010-12-27 - r26103 - lavf 52.90.0
563 Add AVFMT_NOSTREAMS flag for formats with no streams,
564 like e.g. text metadata.
566 2010-12-22 - r26073 - lavu 50.36.0 - file.h
567 Add functions av_file_map() and av_file_unmap() in file.h.
569 2010-12-19 - r26056 - lavu 50.35.0 - error.h
570 Add "not found" error codes:
571 AVERROR_DEMUXER_NOT_FOUND
572 AVERROR_MUXER_NOT_FOUND
573 AVERROR_DECODER_NOT_FOUND
574 AVERROR_ENCODER_NOT_FOUND
575 AVERROR_PROTOCOL_NOT_FOUND
576 AVERROR_FILTER_NOT_FOUND
577 AVERROR_BSF_NOT_FOUND
578 AVERROR_STREAM_NOT_FOUND
580 2010-12-09 - r25923 - lavcore 0.16.0 - avcore.h
581 Move AV_NOPTS_VALUE, AV_TIME_BASE, AV_TIME_BASE_Q symbols from
582 avcodec.h to avcore.h.
584 2010-12-04 - r25886 - lavc 52.98.0 - CODEC_CAP_NEG_LINESIZES
585 Add CODEC_CAP_NEG_LINESIZES codec capability flag in avcodec.h.
587 2010-12-04 - r25879 - lavu 50.34.0 - av_get_pix_fmt_string()
588 Deprecate avcodec_pix_fmt_string() in favor of
589 pixdesc.h/av_get_pix_fmt_string().
591 2010-12-04 - r25878 - lavcore 0.15.0 - av_image_alloc()
592 Add av_image_alloc() to libavcore/imgutils.h.
594 2010-12-02 - r25862 - lavfi 1.67.0 - avfilter_graph_create_filter()
595 Add function avfilter_graph_create_filter() in avfiltergraph.h.
597 2010-11-25 - r25826 - lavfi 1.65.0 - avfilter_get_video_buffer_ref_from_arrays()
598 Add function avfilter_get_video_buffer_ref_from_arrays() in
601 2010-11-21 - r25787 - lavcore 0.14.0 - audioconvert.h
602 Add a public audio channel API in audioconvert.h, and deprecate the
603 corresponding functions in libavcodec:
604 avcodec_get_channel_name()
605 avcodec_get_channel_layout()
606 avcodec_get_channel_layout_string()
607 avcodec_channel_layout_num_channels()
608 and the CH_* macros defined in libavcodec/avcodec.h.
610 2010-11-21 - r25777 - lavf 52.85.0 - avformat.h
611 Add av_append_packet().
613 2010-11-21 - r25776 - lavc 52.97.0 - avcodec.h
614 Add av_grow_packet().
616 2010-11-17 - r25761 - lavcore 0.13.0 - parseutils.h
617 Add av_parse_color() declared in libavcore/parseutils.h.
619 2010-11-13 - r25745 - lavc 52.95.0 - AVCodecContext
620 Add AVCodecContext.subtitle_header and AVCodecContext.subtitle_header_size
623 2010-11-13 - r25740 - lavfi 1.62.0 - avfiltergraph.h
624 Make avfiltergraph.h public.
626 2010-11-13 - r25737 - lavfi 1.61.0 - avfiltergraph.h
627 Remove declarations from avfiltergraph.h for the functions:
628 avfilter_graph_check_validity()
629 avfilter_graph_config_links()
630 avfilter_graph_config_formats()
631 which are now internal.
632 Use avfilter_graph_config() instead.
634 2010-11-08 - r25708 - lavu 50.33.0 - eval.h
636 av_parse_and_eval_expr(),
640 in favor of the functions:
641 av_expr_parse_and_eval(),
646 2010-11-08 - r25707 - lavfi 1.59.0 - avfilter_free()
647 Rename avfilter_destroy() to avfilter_free().
648 This change breaks libavfilter API/ABI.
650 2010-11-07 - r25705 - lavfi 1.58.0 - avfiltergraph.h
651 Remove graphparser.h header, move AVFilterInOut and
652 avfilter_graph_parse() declarations to libavfilter/avfiltergraph.h.
654 2010-11-07 - r25700 - lavfi 1.57.0 - AVFilterInOut
655 Rename field AVFilterInOut.filter to AVFilterInOut.filter_ctx.
656 This change breaks libavfilter API.
658 2010-11-04 - r25674 - lavfi 1.56.0 - avfilter_graph_free()
659 Rename avfilter_graph_destroy() to avfilter_graph_free().
660 This change breaks libavfilter API/ABI.
662 2010-11-04 - r25673 - lavfi 1.55.0 - avfilter_graph_alloc()
663 Add avfilter_graph_alloc() to libavfilter/avfiltergraph.h.
665 2010-11-02 - r25654 - lavcore 0.12.0 - av_get_bits_per_sample_fmt()
666 Add av_get_bits_per_sample_fmt() to libavcore/samplefmt.h and
667 deprecate av_get_bits_per_sample_format().
669 2010-11-02 - r25653 - lavcore 0.11.0 - samplefmt.h
670 Add sample format functions in libavcore/samplefmt.h:
671 av_get_sample_fmt_name(),
673 av_get_sample_fmt_string(),
674 and deprecate the corresponding libavcodec/audioconvert.h functions:
675 avcodec_get_sample_fmt_name(),
676 avcodec_get_sample_fmt(),
677 avcodec_sample_fmt_string().
679 2010-11-02 - r25652 - lavcore 0.10.0 - samplefmt.h
680 Define enum AVSampleFormat in libavcore/samplefmt.h, deprecate enum
683 2010-10-16 - r25502 - lavfi 1.52.0 - avfilter_graph_config()
684 Add the function avfilter_graph_config() in avfiltergraph.h.
686 2010-10-15 - r25493 - lavf 52.83.0 - metadata API
687 Change demuxers to export metadata in generic format and
688 muxers to accept generic format. Deprecate the public
691 2010-10-10 - r25441 - lavfi 1.49.0 - AVFilterLink.time_base
692 Add time_base field to AVFilterLink.
694 2010-09-27 - r25236 - lavu 50.31.0 - av_set_options_string()
695 Move av_set_options_string() from libavfilter/parseutils.h to
698 2010-09-27 - r25227 - lavfi 1.47.0 - AVFilterLink
699 Make the AVFilterLink fields srcpad and dstpad store the pointers to
700 the source and destination pads, rather than their indexes.
702 2010-09-27 - r25225 - lavu 50.30.0 - av_get_token()
703 Move av_get_token() from libavfilter/parseutils.h to
704 libavutil/avstring.h.
706 2010-09-26 - r32368 - lsws 0.12.0 - swscale.h
707 Add the functions sws_alloc_context() and sws_init_context().
709 2010-09-26 - r25210 - lavu 50.29.0 - opt.h
710 Move libavcodec/opt.h to libavutil/opt.h.
712 2010-09-24 - r25174 - lavu 50.28.0 - av_log_set_flags()
713 Default of av_log() changed due to many problems to the old no repeat
714 detection. Read the docs of AV_LOG_SKIP_REPEATED in log.h before
715 enabling it for your app!.
717 2010-09-24 - r25167 - lavc 52.90.0 - av_opt_show2()
718 Deprecate av_opt_show() in favor or av_opt_show2().
720 2010-09-14 - r25120 - lavu 50.27.0 - av_popcount()
721 Add av_popcount() to libavutil/common.h.
723 2010-09-08 - r25076 - lavu 50.26.0 - av_get_cpu_flags()
724 Add av_get_cpu_flags().
726 2010-09-07 - r25067 - lavcore 0.9.0 - av_image_copy()
729 2010-09-07 - r25064 - lavcore 0.8.0 - av_image_copy_plane()
730 Add av_image_copy_plane().
732 2010-09-07 - r25057 - lavcore 0.7.0 - imgutils.h
733 Adopt hierarchical scheme for the imgutils.h function names,
734 deprecate the old names.
736 2010-09-04 - r25040 - lavu 50.25.0 - AV_CPU_FLAG_*
737 Deprecate the FF_MM_* flags defined in libavcodec/avcodec.h in favor
738 of the AV_CPU_FLAG_* flags defined in libavutil/cpu.h.
740 2010-08-26 - r24936 - lavc 52.87.0 - avcodec_get_channel_layout()
741 Add avcodec_get_channel_layout() in audioconvert.h.
743 2010-08-20 - r24851 - lavcore 0.6.0 - av_fill_image_max_pixsteps()
744 Rename av_fill_image_max_pixstep() to av_fill_image_max_pixsteps().
746 2010-08-18 - r24827 - lavcore 0.5.0 - av_fill_image_max_pixstep()
747 Add av_fill_image_max_pixstep() in imgutils.h.
749 2010-08-17 - r24814 - lavu 50.24.0 - AV_NE()
752 2010-08-17 - r24811 - lavfi 1.36.0 - audio framework
753 Implement AVFilterBufferRefAudioProps struct for audio properties,
754 get_audio_buffer(), filter_samples() functions and related changes.
756 2010-08-12 - r24787 - lavcore 0.4.0 - av_get_image_linesize()
757 Add av_get_image_linesize() in imgutils.h.
759 2010-08-11 - r24773 - lavfi 1.34.0 - AVFilterBufferRef
760 Resize data and linesize arrays in AVFilterBufferRef to 8.
762 This change breaks libavfilter API/ABI.
764 2010-08-11 - r24768 - lavc 52.85.0 - av_picture_data_copy()
765 Add av_picture_data_copy in avcodec.h.
767 2010-08-11 - r24765 - lavfi 1.33.0 - avfilter_open()
768 Change avfilter_open() signature:
769 AVFilterContext *avfilter_open(AVFilter *filter, const char *inst_name) ->
770 int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);
772 This change breaks libavfilter API/ABI.
774 2010-08-11 - r24763 - lavfi 1.32.0 - AVFilterBufferRef
775 Add a type field to AVFilterBufferRef, and move video specific
776 properties to AVFilterBufferRefVideoProps.
778 This change breaks libavfilter API/ABI.
780 2010-08-07 - r24732 - lavfi 1.31.0 - AVFilterLink
781 Rename AVFilterLink fields:
782 AVFilterLink.srcpic -> AVFilterLink.src_buf
783 AVFilterLink.cur_pic -> AVFilterLink.cur_buf
784 AVFilterLink.outpic -> AVFilterLink.out_buf
786 2010-08-07 - r24731 - lavfi 1.30.0
787 Rename functions and fields:
788 avfilter_(un)ref_pic -> avfilter_(un)ref_buffer
789 avfilter_copy_picref_props -> avfilter_copy_buffer_ref_props
790 AVFilterBufferRef.pic -> AVFilterBufferRef.buffer
792 2010-08-07 - r24730 - lavfi 1.29.0 - AVFilterBufferRef
793 Rename AVFilterPicRef to AVFilterBufferRef.
795 2010-08-07 - r24728 - lavfi 1.28.0 - AVFilterBuffer
796 Move format field from AVFilterBuffer to AVFilterPicRef.
798 2010-08-06 - r24709 - lavcore 0.3.0 - av_check_image_size()
799 Deprecate avcodec_check_dimensions() in favor of the function
800 av_check_image_size() defined in libavcore/imgutils.h.
802 2010-07-30 - r24592 - lavfi 1.27.0 - AVFilterBuffer
803 Increase size of the arrays AVFilterBuffer.data and
804 AVFilterBuffer.linesize from 4 to 8.
806 This change breaks libavfilter ABI.
808 2010-07-29 - r24583 - lavcore 0.2.0 - imgutils.h
809 Add functions av_fill_image_linesizes() and
810 av_fill_image_pointers(), declared in libavcore/imgutils.h.
812 2010-07-27 - r24518 - lavcore 0.1.0 - parseutils.h
813 Deprecate av_parse_video_frame_size() and av_parse_video_frame_rate()
814 defined in libavcodec in favor of the newly added functions
815 av_parse_video_size() and av_parse_video_rate() declared in
816 libavcore/parseutils.h.
818 2010-07-23 - r24439 - lavu 50.23.0 - mathematics.h
819 Add the M_PHI constant definition.
821 2010-07-22 - r24424 - lavfi 1.26.0 - media format generalization
822 Add a type field to AVFilterLink.
824 Change the field types:
825 enum PixelFormat format -> int format in AVFilterBuffer
826 enum PixelFormat *formats -> int *formats in AVFilterFormats
827 enum PixelFormat *format -> int format in AVFilterLink
829 Change the function signatures:
830 AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts); ->
831 AVFilterFormats *avfilter_make_format_list(const int *fmts);
833 int avfilter_add_colorspace(AVFilterFormats **avff, enum PixelFormat pix_fmt); ->
834 int avfilter_add_format (AVFilterFormats **avff, int fmt);
836 AVFilterFormats *avfilter_all_colorspaces(void); ->
837 AVFilterFormats *avfilter_all_formats (enum AVMediaType type);
839 This change breaks libavfilter API/ABI.
841 2010-07-21 - r24393 - lavcore 0.0.0
844 2010-07-17 - r24291 - lavfi 1.25.0 - AVFilterBuffer
845 Remove w and h fields from AVFilterBuffer.
847 2010-07-17 - r24284 - lavfi 1.24.0 - AVFilterBuffer
848 Rename AVFilterPic to AVFilterBuffer.
850 2010-07-17 - r24278 - lavf 52.74.0 - url_fskip()
851 Make url_fskip() return an int error code instead of void.
853 2010-07-11 - r24199 - lavc 52.83.0
854 Add AVCodecContext.lpc_type and AVCodecContext.lpc_passes fields.
856 Deprecate AVCodecContext.use_lpc.
858 2010-07-11 - r24185 - lavc 52.82.0 - avsubtitle_free()
859 Add a function for free the contents of a AVSubtitle generated by
860 avcodec_decode_subtitle.
862 2010-07-11 - r24174 - lavu 50.22.0 - bswap.h and intreadwrite.h
863 Make the bswap.h and intreadwrite.h API public.
865 2010-07-08 - r24101 - lavu 50.21.0 - pixdesc.h
866 Rename read/write_line() to av_read/write_image_line().
868 2010-07-07 - r24091 - lavfi 1.21.0 - avfilter_copy_picref_props()
869 Add avfilter_copy_picref_props().
871 2010-07-03 - r24021 - lavc 52.79.0
872 Add FF_COMPLIANCE_UNOFFICIAL and change all instances of
873 FF_COMPLIANCE_INOFFICIAL to use FF_COMPLIANCE_UNOFFICIAL.
875 2010-07-02 - r23985 - lavu 50.20.0 - lfg.h
876 Export av_lfg_init(), av_lfg_get(), av_mlfg_get(), and av_bmg_get() through
879 2010-06-28 - r23835 - lavfi 1.20.1 - av_parse_color()
880 Extend av_parse_color() syntax, make it accept an alpha value specifier and
881 set the alpha value to 255 by default.
883 2010-06-22 - r23706 - lavf 52.71.0 - URLProtocol.priv_data_size, priv_data_class
884 Add priv_data_size and priv_data_class to URLProtocol.
886 2010-06-22 - r23704 - lavf 52.70.0 - url_alloc(), url_connect()
887 Add url_alloc() and url_connect().
889 2010-06-22 - r23702 - lavf 52.69.0 - av_register_protocol2()
890 Add av_register_protocol2(), deprecating av_register_protocol().
892 2010-06-09 - r23551 - lavu 50.19.0 - av_compare_mod()
893 Add av_compare_mod() to libavutil/mathematics.h.
895 2010-06-05 - r23485 - lavu 50.18.0 - eval API
896 Make the eval API public.
898 2010-06-04 - r23461 - lavu 50.17.0 - AV_BASE64_SIZE
899 Add AV_BASE64_SIZE() macro.
901 2010-06-02 - r23421 - lavc 52.73.0 - av_get_codec_tag_string()
902 Add av_get_codec_tag_string().
904 2010-06-01 - r31301 - lsws 0.11.0 - convertPalette API
905 Add sws_convertPalette8ToPacked32() and sws_convertPalette8ToPacked24().
907 2010-05-26 - r23334 - lavc 52.72.0 - CODEC_CAP_EXPERIMENTAL
908 Add CODEC_CAP_EXPERIMENTAL flag.
909 NOTE: this was backported to 0.6
911 2010-05-23 - r23255 - lavu 50.16.0 - av_get_random_seed()
912 Add av_get_random_seed().
914 2010-05-18 - r23161 - lavf 52.63.0 - AVFMT_FLAG_RTP_HINT
915 Add AVFMT_FLAG_RTP_HINT as possible value for AVFormatContext.flags.
916 NOTE: this was backported to 0.6
918 2010-05-09 - r23066 - lavfi 1.20.0 - AVFilterPicRef
919 Add interlaced and top_field_first fields to AVFilterPicRef.
921 ------------------------------8<-------------------------------------
922 0.6 branch was cut here
923 ----------------------------->8--------------------------------------
925 2010-05-01 - r23002 - lavf 52.62.0 - probe function
926 Add av_probe_input_format2 to API, it allows ignoring probe
927 results below given score and returns the actual probe score.
929 2010-04-01 - r22806 - lavf 52.61.0 - metadata API
930 Add a flag for av_metadata_set2() to disable overwriting of
933 2010-04-01 - r22753 - lavc 52.66.0
934 Add avcodec_get_edge_width().
936 2010-03-31 - r22750 - lavc 52.65.0
937 Add avcodec_copy_context().
939 2010-03-31 - r22748 - lavf 52.60.0 - av_match_ext()
940 Make av_match_ext() public.
942 2010-03-31 - r22736 - lavu 50.14.0 - AVMediaType
943 Move AVMediaType enum from libavcodec to libavutil.
945 2010-03-31 - r22735 - lavc 52.64.0 - AVMediaType
946 Define AVMediaType enum, and use it instead of enum CodecType, which
947 is deprecated and will be dropped at the next major bump.
949 2010-03-25 - r22684 - lavu 50.13.0 - av_strerror()
950 Implement av_strerror().
952 2010-03-23 - r22649 - lavc 52.60.0 - av_dct_init()
953 Support DCT-I and DST-I.
955 2010-03-15 - r22540 - lavf 52.56.0 - AVFormatContext.start_time_realtime
956 Add AVFormatContext.start_time_realtime field.
958 2010-03-13 - r22506 - lavfi 1.18.0 - AVFilterPicRef.pos
959 Add AVFilterPicRef.pos field.
961 2010-03-13 - r22501 - lavu 50.12.0 - error.h
962 Move error code definitions from libavcodec/avcodec.h to
963 the new public header libavutil/error.h.
965 2010-03-07 - r22291 - lavc 52.56.0 - avfft.h
966 Add public FFT interface.
968 2010-03-06 - r22251 - lavu 50.11.0 - av_stristr()
971 2010-03-03 - r22174 - lavu 50.10.0 - av_tree_enumerate()
972 Add av_tree_enumerate().
974 2010-02-07 - r21673 - lavu 50.9.0 - av_compare_ts()
977 2010-02-05 - r30513 - lsws 0.10.0 - sws_getCoefficients()
978 Add sws_getCoefficients().
980 2010-02-01 - r21587 - lavf 52.50.0 - metadata API
981 Add a list of generic tag names, change 'author' -> 'artist',
984 2010-01-30 - r21545 - lavu 50.8.0 - av_get_pix_fmt()
985 Add av_get_pix_fmt().
987 2010-01-21 - r30381 - lsws 0.9.0 - sws_scale()
988 Change constness attributes of sws_scale() parameters.
990 2010-01-10 - r21121 - lavfi 1.15.0 - avfilter_graph_config_links()
991 Add a log_ctx parameter to avfilter_graph_config_links().
993 2010-01-07 - r30236 - lsws 0.8.0 - sws_isSupported{In,Out}put()
994 Add sws_isSupportedInput() and sws_isSupportedOutput() functions.
996 2010-01-06 - r21035 - lavfi 1.14.0 - avfilter_add_colorspace()
997 Change the avfilter_add_colorspace() signature, make it accept an
998 (AVFilterFormats **) rather than an (AVFilterFormats *) as before.
1000 2010-01-03 - r21007 - lavfi 1.13.0 - avfilter_add_colorspace()
1001 Add avfilter_add_colorspace().
1003 2010-01-02 - r20998 - lavf 52.46.0 - av_match_ext()
1004 Add av_match_ext(), it should be used in place of match_ext().
1006 2010-01-01 - r20991 - lavf 52.45.0 - av_guess_format()
1007 Add av_guess_format(), it should be used in place of guess_format().
1009 2009-12-13 - r20834 - lavf 52.43.0 - metadata API
1010 Add av_metadata_set2(), AV_METADATA_DONT_STRDUP_KEY and
1011 AV_METADATA_DONT_STRDUP_VAL.
1013 2009-12-13 - r20829 - lavu 50.7.0 - avstring.h API
1016 2009-12-13 - r20826 - lavc 52.42.0 - AVStream
1019 2009-12-12 - r20808 - lavu 50.6.0 - av_bmg_next()
1020 Introduce the av_bmg_next() function.
1022 2009-12-05 - r20734 - lavfi 1.12.0 - avfilter_draw_slice()
1023 Add a slice_dir parameter to avfilter_draw_slice().
1025 2009-11-26 - r20611 - lavfi 1.11.0 - AVFilter
1026 Remove the next field from AVFilter, this is not anymore required.
1028 2009-11-25 - r20607 - lavfi 1.10.0 - avfilter_next()
1029 Introduce the avfilter_next() function.
1031 2009-11-25 - r20605 - lavfi 1.9.0 - avfilter_register()
1032 Change the signature of avfilter_register() to make it return an
1033 int. This is required since now the registration operation may fail.
1035 2009-11-25 - r20603 - lavu 50.5.0 - pixdesc.h API
1036 Make the pixdesc.h API public.
1038 2009-10-27 - r20385 - lavfi 1.5.0 - AVFilter.next
1039 Add a next field to AVFilter, this is used for simplifying the
1040 registration and management of the registered filters.
1042 2009-10-23 - r20356 - lavfi 1.4.1 - AVFilter.description
1043 Add a description field to AVFilter.
1045 2009-10-19 - r20302 - lavfi 1.3.0 - avfilter_make_format_list()
1046 Change the interface of avfilter_make_format_list() from
1047 avfilter_make_format_list(int n, ...) to
1048 avfilter_make_format_list(enum PixelFormat *pix_fmts).
1050 2009-10-18 - r20272 - lavfi 1.0.0 - avfilter_get_video_buffer()
1051 Make avfilter_get_video_buffer() recursive and add the w and h
1054 2009-10-07 - r20189 - lavfi 0.5.1 - AVFilterPic
1055 Add w and h fields to AVFilterPic.
1057 2009-06-22 - r19250 - lavf 52.34.1 - AVFormatContext.packet_size
1058 This is now an unsigned int instead of a signed int.
1060 2009-06-19 - r19222 - lavc 52.32.0 - AVSubtitle.pts
1061 Add a pts field to AVSubtitle which gives the subtitle packet pts
1062 in AV_TIME_BASE. Some subtitle de-/encoders (e.g. XSUB) will
1063 not work right without this.
1065 2009-06-03 - r19078 - lavc 52.30.2 - AV_PKT_FLAG_KEY
1066 PKT_FLAG_KEY has been deprecated and will be dropped at the next
1067 major version. Use AV_PKT_FLAG_KEY instead.
1069 2009-06-01 - r19025 - lavc 52.30.0 - av_lockmgr_register()
1070 av_lockmgr_register() can be used to register a callback function
1071 that lavc (and in the future, libraries that depend on lavc) can use
1072 to implement mutexes. The application should provide a callback function
1073 that implements the AV_LOCK_* operations described in avcodec.h.
1074 When the lock manager is registered, FFmpeg is guaranteed to behave
1075 correctly in a multi-threaded application.
1077 2009-04-30 - r18719 - lavc 52.28.0 - av_free_packet()
1078 av_free_packet() is no longer an inline function. It is now exported.
1080 2009-04-11 - r18431 - lavc 52.25.0 - deprecate av_destruct_packet_nofree()
1081 Please use NULL instead. This has been supported since r16506
1082 (lavf > 52.23.1, lavc > 52.10.0).
1084 2009-04-07 - r18351 - lavc 52.23.0 - avcodec_decode_video/audio/subtitle
1085 The old decoding functions are deprecated, all new code should use the
1086 new functions avcodec_decode_video2(), avcodec_decode_audio3() and
1087 avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt
1088 argument instead of a const uint8_t *buf / int buf_size pair.
1090 2009-04-03 - r18321 - lavu 50.3.0 - av_fifo_space()
1091 Introduce the av_fifo_space() function.
1093 2009-04-02 - r18317 - lavc 52.23.0 - AVPacket
1094 Move AVPacket declaration from libavformat/avformat.h to
1095 libavcodec/avcodec.h.
1097 2009-03-22 - r18163 - lavu 50.2.0 - RGB32 pixel formats
1098 Convert the pixel formats PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR,
1099 PIX_FMT_BGRA, which were defined as macros, into enum PixelFormat values.
1100 Conversely PIX_FMT_RGB32, PIX_FMT_RGB32_1, PIX_FMT_BGR32 and
1101 PIX_FMT_BGR32_1 are now macros.
1102 avcodec_get_pix_fmt() now recognizes the "rgb32" and "bgr32" aliases.
1103 Re-sort the enum PixelFormat list accordingly.
1104 This change breaks API/ABI backward compatibility.
1106 2009-03-22 - r18133 - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants
1107 Add the enum PixelFormat values:
1108 PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,
1109 PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.
1111 2009-03-21 - r18116 - lavu 50.0.0 - av_random*
1112 The Mersenne Twister PRNG implemented through the av_random* functions
1113 was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions
1116 2009-03-08 - r17869 - lavu 50.0.0 - AVFifoBuffer
1117 av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped
1118 and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write
1119 and av_fifo_realloc2.
1120 In addition, the order of the function arguments of av_fifo_generic_read
1121 was changed to match av_fifo_generic_write.
1122 The AVFifoBuffer/struct AVFifoBuffer may only be used in an opaque way by
1123 applications, they may not use sizeof() or directly access members.
1125 2009-03-01 - r17682 - lavf 52.31.0 - Generic metadata API
1126 Introduce a new metadata API (see av_metadata_get() and friends).
1127 The old API is now deprecated and should not be used anymore. This especially
1128 includes the following structure fields:
1129 - AVFormatContext.title
1130 - AVFormatContext.author
1131 - AVFormatContext.copyright
1132 - AVFormatContext.comment
1133 - AVFormatContext.album
1134 - AVFormatContext.year
1135 - AVFormatContext.track
1136 - AVFormatContext.genre
1139 - AVProgram.provider_name