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 2011-11-03 - 96949da - lavu 51.23.0
17 Add av_strcasecmp() and av_strncasecmp() to avstring.h.
19 2011-10-20 - b35e9e1 - lavu 51.22.0
20 Add av_strtok() to avstring.h.
22 2011-xx-xx - xxxxxxx - lavc 53.21.0
23 Move some AVCodecContext fields to a new private struct, AVCodecInternal,
24 which is accessed from a new field, AVCodecContext.internal.
26 AVCodecContext.internal_buffer --> AVCodecInternal.buffer
27 AVCodecContext.internal_buffer_count --> AVCodecInternal.buffer_count
28 AVCodecContext.is_copy --> AVCodecInternal.is_copy
30 2011-11-13 - lavf 53.15.0
31 New interrupt callback API, allowing per-AVFormatContext/AVIOContext
33 6aa0b98 Add AVIOInterruptCB struct and the interrupt_callback field to
35 1dee0ac Add avio_open2() with additional parameters. Those are
36 an interrupt callback and an options AVDictionary.
37 This will allow passing AVOptions to protocols after lavf
40 2011-11-xx - xxxxxxx - lavu 51.16.0
43 2011-11-06 - ba04ecf - lavu 51.14.0
44 Add av_strcasecmp() and av_strncasecmp() to avstring.h.
46 2011-11-06 - 07b172f - lavu 51.13.0
47 Add av_toupper()/av_tolower()
49 2011-11-05 - b6d08f4 - lavf 53.13.0
50 Add avformat_network_init()/avformat_network_uninit()
52 2011-10-27 - 512557b - lavc 53.15.0
53 Remove avcodec_parse_frame.
54 Deprecate AVCodecContext.parse_only and CODEC_CAP_PARSE_ONLY.
56 2011-10-19 - 569129a - lavf 53.10.0
57 Add avformat_new_stream(). Deprecate av_new_stream().
59 2011-10-13 - b631fba - lavf 53.9.0
60 Add AVFMT_NO_BYTE_SEEK AVInputFormat flag.
62 2011-10-12 - lavu 51.12.0
63 AVOptions API rewrite.
65 - 145f741 FF_OPT_TYPE* renamed to AV_OPT_TYPE_*
66 - new setting/getting functions with slightly different semantics:
67 dac66da av_set_string3 -> av_opt_set
68 av_set_double -> av_opt_set_double
69 av_set_q -> av_opt_set_q
70 av_set_int -> av_opt_set_int
72 41d9d51 av_get_string -> av_opt_get
73 av_get_double -> av_opt_get_double
74 av_get_q -> av_opt_get_q
75 av_get_int -> av_opt_get_int
77 - 8c5dcaa trivial rename av_next_option -> av_opt_next
78 - 641c7af new functions - av_opt_child_next, av_opt_child_class_next
81 2011-09-22 - a70e787 - lavu 51.17.0
84 2011-09-18 - 645cebb - lavc 53.16.0
87 2011-09-16 - ea8de10 - lavfi 2.42.0
88 Add avfilter_all_channel_layouts.
90 2011-09-16 - 9899037 - lavfi 2.41.0
91 Rename avfilter_all_* function names to avfilter_make_all_*.
93 In particular, apply the renames:
94 avfilter_all_formats -> avfilter_make_all_formats
95 avfilter_all_channel_layouts -> avfilter_make_all_channel_layouts
96 avfilter_all_packing_formats -> avfilter_make_all_packing_formats
98 2011-09-12 - 4381bdd - lavfi 2.40.0
99 Change AVFilterBufferRefAudioProps.sample_rate type from uint32_t to int.
101 2011-09-12 - 2c03174 - lavfi 2.40.0
102 Simplify signature for avfilter_get_audio_buffer(), make it
103 consistent with avfilter_get_video_buffer().
105 2011-09-06 - 4f7dfe1 - lavfi 2.39.0
106 Rename libavfilter/vsink_buffer.h to libavfilter/buffersink.h.
108 2011-09-06 - c4415f6 - lavfi 2.38.0
109 Unify video and audio sink API.
111 In particular, add av_buffersink_get_buffer_ref(), deprecate
112 av_vsink_buffer_get_video_buffer_ref() and change the value for the
113 opaque field passed to the abuffersink init function.
115 2011-09-04 - 61e2e29 - lavu 51.16.0
118 2011-08-22 - dacd827 - lavf 53.10.0
119 Add av_find_program_from_stream().
121 2011-08-20 - 69e2c1a - lavu 51.13.0
122 Add av_get_media_type_string().
124 2011-09-03 - fb4ca26 - lavc 53.13.0
127 Add {avcodec,avformat,sws}_get_class().
129 2011-08-03 - c11fb82 - lavu 51.15.0
130 Add AV_OPT_SEARCH_FAKE_OBJ flag for av_opt_find() function.
132 2011-08-14 - 323b930 - lavu 51.12.0
133 Add av_fifo_peek2(), deprecate av_fifo_peek().
135 2011-08-16 - 48f9e45 - lavf 53.8.0
136 Add avformat_query_codec().
138 2011-08-16 - bca06e7 - lavc 53.11.0
139 Add avcodec_get_type().
141 2011-08-06 - 2f63440 - lavf 53.7.0
142 Add error_recognition to AVFormatContext.
144 2011-08-02 - 9d39cbf - lavc 53.9.1
145 Add AV_PKT_FLAG_CORRUPT AVPacket flag.
147 2011-07-16 - b57df29 - lavfi 2.27.0
148 Add audio packing negotiation fields and helper functions.
150 In particular, add AVFilterPacking enum, planar, in_packings and
151 out_packings fields to AVFilterLink, and the functions:
152 avfilter_set_common_packing_formats()
153 avfilter_all_packing_formats()
155 2011-07-10 - a67c061 - lavf 53.6.0
156 Add avformat_find_stream_info(), deprecate av_find_stream_info().
158 2011-07-10 - 0b950fe - lavc 53.8.0
159 Add avcodec_open2(), deprecate avcodec_open().
161 2011-07-01 - b442ca6 - lavf 53.5.0 - avformat.h
162 Add function av_get_output_timestamp().
164 2011-06-28 - 5129336 - lavu 51.11.0 - avutil.h
165 Define the AV_PICTURE_TYPE_NONE value in AVPictureType enum.
167 2011-06-19 - fd2c0a5 - lavfi 2.23.0 - avfilter.h
168 Add layout negotiation fields and helper functions.
170 In particular, add in_chlayouts and out_chlayouts to AVFilterLink,
172 avfilter_set_common_sample_formats()
173 avfilter_set_common_channel_layouts()
174 avfilter_all_channel_layouts()
176 2011-06-19 - 527ca39 - lavfi 2.22.0 - AVFilterFormats
177 Change type of AVFilterFormats.formats from int * to int64_t *,
178 and update formats handling API accordingly.
180 avfilter_make_format_list() still takes a int32_t array and converts
181 it to int64_t. A new function, avfilter_make_format64_list(), that
182 takes int64_t arrays has been added.
184 2011-06-19 - 44f669e - lavfi 2.21.0 - vsink_buffer.h
185 Add video sink buffer and vsink_buffer.h public header.
187 2011-06-12 - 9fdf772 - lavfi 2.18.0 - avcodec.h
188 Add avfilter_get_video_buffer_ref_from_frame() function in
189 libavfilter/avcodec.h.
191 2011-06-12 - c535494 - lavfi 2.17.0 - avfiltergraph.h
192 Add avfilter_inout_alloc() and avfilter_inout_free() functions.
194 2011-06-12 - 6119b23 - lavfi 2.16.0 - avfilter_graph_parse()
195 Change avfilter_graph_parse() signature.
197 2011-06-23 - 67e9ae1 - lavu 51.8.0 - attributes.h
198 Add av_printf_format().
200 2011-06-16 - 05e84c9, 25de595 - lavf 53.2.0 - avformat.h
201 Add avformat_open_input and avformat_write_header().
202 Deprecate av_open_input_stream, av_open_input_file,
203 AVFormatParameters and av_write_header.
205 2011-06-16 - 7e83e1c, dc59ec5 - lavu 51.7.0 - opt.h
206 Add av_opt_set_dict() and av_opt_find().
207 Deprecate av_find_opt().
208 Add AV_DICT_APPEND flag.
210 2011-06-10 - cb7c11c - lavu 51.6.0 - opt.h
211 Add av_opt_flag_is_set().
213 2011-06-10 - c381960 - lavfi 2.15.0 - avfilter_get_audio_buffer_ref_from_arrays
214 Add avfilter_get_audio_buffer_ref_from_arrays() to avfilter.h.
216 2011-06-09 - d9f80ea - lavu 51.8.0 - AVMetadata
217 Move AVMetadata from lavf to lavu and rename it to
218 AVDictionary -- new installed header dict.h.
219 All av_metadata_* functions renamed to av_dict_*.
221 2011-06-07 - a6703fa - lavu 51.8.0 - av_get_bytes_per_sample()
222 Add av_get_bytes_per_sample() in libavutil/samplefmt.h.
223 Deprecate av_get_bits_per_sample_fmt().
225 2011-06-05 - b39b062 - lavu 51.8.0 - opt.h
226 Add av_opt_free convenience function.
228 2011-06-06 - 95a0242 - lavfi 2.14.0 - AVFilterBufferRefAudioProps
229 Remove AVFilterBufferRefAudioProps.size, and use nb_samples in
230 avfilter_get_audio_buffer() and avfilter_default_get_audio_buffer() in
233 2011-06-06 - 0bc2cca - lavu 51.6.0 - av_samples_alloc()
234 Switch nb_channels and nb_samples parameters order in
237 2011-06-06 - e1c7414 - lavu 51.5.0 - av_samples_*
238 Change the data layout created by av_samples_fill_arrays() and
241 2011-06-06 - 27bcf55 - lavfi 2.13.0 - vsrc_buffer.h
242 Make av_vsrc_buffer_add_video_buffer_ref() accepts an additional
243 flags parameter in input.
245 2011-06-03 - e977ca2 - lavfi 2.12.0 - avfilter_link_free()
246 Add avfilter_link_free() function.
248 2011-06-02 - 5ad38d9 - lavu 51.4.0 - av_force_cpu_flags()
249 Add av_cpu_flags() in libavutil/cpu.h.
251 2011-05-28 - e71f260 - lavu 51.3.0 - pixdesc.h
252 Add av_get_pix_fmt_name() in libavutil/pixdesc.h, and deprecate
253 avcodec_get_pix_fmt_name() in libavcodec/avcodec.h in its favor.
255 2011-05-25 - 30315a8 - lavf 53.3.0 - avformat.h
256 Add fps_probe_size to AVFormatContext.
258 2011-05-22 - 5ecdfd0 - lavf 53.2.0 - avformat.h
259 Introduce avformat_alloc_output_context2() and deprecate
260 avformat_alloc_output_context().
262 2011-05-22 - 83db719 - lavfi 2.10.0 - vsrc_buffer.h
263 Make libavfilter/vsrc_buffer.h public.
265 2011-05-19 - c000a9f - lavfi 2.8.0 - avcodec.h
266 Add av_vsrc_buffer_add_frame() to libavfilter/avcodec.h.
268 2011-05-14 - 9fdf772 - lavfi 2.6.0 - avcodec.h
269 Add avfilter_get_video_buffer_ref_from_frame() to libavfilter/avcodec.h.
271 2011-05-18 - 64150ff - lavc 53.7.0 - AVCodecContext.request_sample_fmt
272 Add request_sample_fmt field to AVCodecContext.
274 2011-05-10 - 188dea1 - lavc 53.6.0 - avcodec.h
275 Deprecate AVLPCType and the following fields in
276 AVCodecContext: lpc_coeff_precision, prediction_order_method,
277 min_partition_order, max_partition_order, lpc_type, lpc_passes.
278 Corresponding FLAC encoder options should be used instead.
280 2011-05-07 - 9fdf772 - lavfi 2.5.0 - avcodec.h
281 Add libavfilter/avcodec.h header and avfilter_copy_frame_props()
284 2011-05-07 - 18ded93 - lavc 53.5.0 - AVFrame
285 Add format field to AVFrame.
287 2011-05-07 - 22333a6 - lavc 53.4.0 - AVFrame
288 Add width and height fields to AVFrame.
290 2011-05-01 - 35fe66a - lavfi 2.4.0 - avfilter.h
291 Rename AVFilterBufferRefVideoProps.pixel_aspect to
294 2011-05-01 - 77e9dee - lavc 53.3.0 - AVFrame
295 Add a sample_aspect_ratio field to AVFrame.
297 2011-05-01 - 1ba5727 - lavc 53.2.0 - AVFrame
298 Add a pkt_pos field to AVFrame.
300 2011-04-29 - 35ceaa7 - lavu 51.2.0 - mem.h
301 Add av_dynarray_add function for adding
302 an element to a dynamic array.
304 2011-04-26 - bebe72f - lavu 51.1.0 - avutil.h
305 Add AVPictureType enum and av_get_picture_type_char(), deprecate
306 FF_*_TYPE defines and av_get_pict_type_char() defined in
307 libavcodec/avcodec.h.
309 2011-04-26 - 10d3940 - lavfi 2.3.0 - avfilter.h
310 Add pict_type and key_frame fields to AVFilterBufferRefVideo.
312 2011-04-26 - 7a11c82 - lavfi 2.2.0 - vsrc_buffer
313 Add sample_aspect_ratio fields to vsrc_buffer arguments
315 2011-04-21 - 94f7451 - lavc 53.1.0 - avcodec.h
316 Add CODEC_CAP_SLICE_THREADS for codecs supporting sliced threading.
318 2011-04-15 - lavc 52.120.0 - avcodec.h
319 AVPacket structure got additional members for passing side information:
320 4de339e introduce side information for AVPacket
321 2d8591c make containers pass palette change in AVPacket
323 2011-04-12 - lavf 52.107.0 - avio.h
324 Avio cleanup, part II - deprecate the entire URLContext API:
325 175389c add avio_check as a replacement for url_exist
326 ff1ec0c add avio_pause and avio_seek_time as replacements
327 for _av_url_read_fseek/fpause
328 cdc6a87 deprecate av_protocol_next(), avio_enum_protocols
329 should be used instead.
330 80c6e23 rename url_set_interrupt_cb->avio_set_interrupt_cb.
331 f87b1b3 rename open flags: URL_* -> AVIO_*
332 f8270bb add avio_enum_protocols.
333 5593f03 deprecate URLProtocol.
334 c486dad deprecate URLContext.
335 026e175 deprecate the typedef for URLInterruptCB
336 8e76a19 deprecate av_register_protocol2.
337 b840484 deprecate URL_PROTOCOL_FLAG_NESTED_SCHEME
338 1305d93 deprecate av_url_read_seek
339 fa104e1 deprecate av_url_read_pause
340 727c7aa deprecate url_get_filename().
341 5958df3 deprecate url_max_packet_size().
342 1869ea0 deprecate url_get_file_handle().
343 32a97d4 deprecate url_filesize().
344 e52a914 deprecate url_close().
345 58a48c6 deprecate url_seek().
346 925e908 deprecate url_write().
347 dce3756 deprecate url_read_complete().
348 bc371ac deprecate url_read().
349 0589da0 deprecate url_open().
350 62eaaea deprecate url_connect.
351 5652bb9 deprecate url_alloc.
352 333e894 deprecate url_open_protocol
353 e230705 deprecate url_poll and URLPollEntry
355 2011-04-08 - lavf 52.106.0 - avformat.h
356 Minor avformat.h cleanup:
357 a9bf9d8 deprecate av_guess_image2_codec
358 c3675df rename avf_sdp_create->av_sdp_create
360 2011-04-03 - lavf 52.105.0 - avio.h
361 Large-scale renaming/deprecating of AVIOContext-related functions:
362 724f6a0 deprecate url_fdopen
363 403ee83 deprecate url_open_dyn_packet_buf
364 6dc7d80 rename url_close_dyn_buf -> avio_close_dyn_buf
365 b92c545 rename url_open_dyn_buf -> avio_open_dyn_buf
366 8978fed introduce an AVIOContext.seekable field as a replacement for
367 AVIOContext.is_streamed and url_is_streamed()
368 b64030f deprecate get_checksum()
369 4c4427a deprecate init_checksum()
370 4ec153b deprecate udp_set_remote_url/get_local_port
371 933e90a deprecate av_url_read_fseek/fpause
372 8d9769a deprecate url_fileno
373 b7f2fdd rename put_flush_packet -> avio_flush
374 35f1023 deprecate url_close_buf
375 83fddae deprecate url_open_buf
376 d9d86e0 rename url_fprintf -> avio_printf
377 59f65d9 deprecate url_setbufsize
378 3e68b3b deprecate url_ferror
379 e8bb2e2 deprecate url_fget_max_packet_size
380 76aa876 rename url_fsize -> avio_size
381 e519753 deprecate url_fgetc
382 655e45e deprecate url_fgets
383 a2704c9 rename url_ftell -> avio_tell
384 e16ead0 deprecate get_strz() in favor of avio_get_str
385 0300db8,2af07d3 rename url_fskip -> avio_skip
386 6b4aa5d rename url_fseek -> avio_seek
387 61840b4 deprecate put_tag
388 22a3212 rename url_fopen/fclose -> avio_open/close.
389 0ac8e2b deprecate put_nbyte
390 77eb550 rename put_byte -> avio_w8
391 put_[b/l]e<type> -> avio_w[b/l]<type>
392 put_buffer -> avio_write
393 b7effd4 rename get_byte -> avio_r8,
394 get_[b/l]e<type> -> avio_r[b/l]<type>
395 get_buffer -> avio_read
396 b3db9ce deprecate get_partial_buffer
397 8d9ac96 rename av_alloc_put_byte -> avio_alloc_context
399 2011-03-25 - 34b47d7 - lavc 52.115.0 - AVCodecContext.audio_service_type
400 Add audio_service_type field to AVCodecContext.
402 2011-03-17 - e309fdc - lavu 50.40.0 - pixfmt.h
403 Add PIX_FMT_BGR48LE and PIX_FMT_BGR48BE pixel formats
405 2011-03-02 - 863c471 - lavf 52.103.0 - av_pkt_dump2, av_pkt_dump_log2
406 Add new functions av_pkt_dump2, av_pkt_dump_log2 that uses the
407 source stream timebase for outputting timestamps. Deprecate
408 av_pkt_dump and av_pkt_dump_log.
410 2011-02-20 - e731b8d - lavf 52.102.0 - avio.h
411 * e731b8d - rename init_put_byte() to ffio_init_context(), deprecating the
412 original, and move it to a private header so it is no longer
413 part of our public API. Instead, use av_alloc_put_byte().
414 * ae628ec - rename ByteIOContext to AVIOContext.
416 2011-02-16 - 09d171b - lavf 52.101.0 - avformat.h
417 lavu 52.39.0 - parseutils.h
418 * 610219a - Add av_ prefix to dump_format().
419 * f6c7375 - Replace parse_date() in lavf with av_parse_time() in lavu.
420 * ab0287f - Move find_info_tag from lavf to lavu and add av_prefix to it.
422 2011-02-15 - lavu 52.38.0 - merge libavcore
423 libavcore is merged back completely into libavutil
425 2011-02-10 - 55bad0c - lavc 52.113.0 - vbv_delay
426 Add vbv_delay field to AVCodecContext
428 2011-02-14 - 24a83bd - lavf 52.100.0 - AV_DISPOSITION_CLEAN_EFFECTS
429 Add AV_DISPOSITION_CLEAN_EFFECTS disposition flag.
431 2011-02-14 - 910b5b8 - lavfi 1.76.0 - AVFilterLink sample_aspect_ratio
432 Add sample_aspect_ratio field to AVFilterLink.
434 2011-02-10 - 12c14cd - lavf 52.99.0 - AVStream.disposition
435 Add AV_DISPOSITION_HEARING_IMPAIRED and AV_DISPOSITION_VISUAL_IMPAIRED.
437 2011-02-09 - 5592734 - lavc 52.112.0 - avcodec_thread_init()
438 Deprecate avcodec_thread_init()/avcodec_thread_free() use; instead
439 set thread_count before calling avcodec_open.
441 2011-02-09 - 778b08a - lavc 52.111.0 - threading API
442 Add CODEC_CAP_FRAME_THREADS with new restrictions on get_buffer()/
443 release_buffer()/draw_horiz_band() callbacks for appropriate codecs.
444 Add thread_type and active_thread_type fields to AVCodecContext.
446 2011-02-08 - 3940caa - lavf 52.98.0 - av_probe_input_buffer
447 Add av_probe_input_buffer() to avformat.h for probing format from a
450 2011-02-06 - fe174fc - lavf 52.97.0 - avio.h
451 Add flag for non-blocking protocols: URL_FLAG_NONBLOCK
453 2011-02-04 - f124b08 - lavf 52.96.0 - avformat_free_context()
454 Add avformat_free_context() in avformat.h.
456 2011-02-03 - f5b82f4 - lavc 52.109.0 - add CODEC_ID_PRORES
457 Add CODEC_ID_PRORES to avcodec.h.
459 2011-02-03 - fe9a3fb - lavc 52.109.0 - H.264 profile defines
460 Add defines for H.264 * Constrained Baseline and Intra profiles
462 2011-02-02 - lavf 52.95.0
463 * 50196a9 - add a new installed header version.h.
464 * 4efd5cf, dccbd97, 93b78d1 - add several variants of public
465 avio_{put,get}_str* functions. Deprecate corresponding semi-public
468 2011-02-02 - dfd2a00 - lavu 50.37.0 - log.h
471 2011-01-31 - 7b3ea55 - lavfi 1.76.0 - vsrc_buffer
472 Add sample_aspect_ratio fields to vsrc_buffer arguments
474 2011-01-31 - 910b5b8 - lavfi 1.75.0 - AVFilterLink sample_aspect_ratio
475 Add sample_aspect_ratio field to AVFilterLink.
477 2011-01-15 - r26374 - lavfi 1.74.0 - AVFilterBufferRefAudioProps
478 Rename AVFilterBufferRefAudioProps.samples_nb to nb_samples.
480 2011-01-14 - r26330 - lavf 52.93.0 - av_metadata_copy()
481 Add av_metadata_copy() in avformat.h.
483 2011-01-07 - r26262 - lavc 52.107.0 - deprecate reordered_opaque
484 Deprecate reordered_opaque in favor of pkt_pts/dts.
486 2011-01-07 - r26261 - lavc 52.106.0 - pkt_dts
487 Add pkt_dts to AVFrame, this will in the future allow multithreading decoders
490 2011-01-07 - r26260 - lavc 52.105.0 - pkt_pts
491 Add pkt_pts to AVFrame.
493 2011-01-07 - r26259 - lavc 52.104.0 - av_get_profile_name()
494 Add av_get_profile_name to libavcodec/avcodec.h.
496 2010-12-27 - r26108 - lavfi 1.71.0 - AV_PERM_NEG_LINESIZES
497 Add AV_PERM_NEG_LINESIZES in avfilter.h.
499 2010-12-27 - r26104 - lavf 52.91.0 - av_find_best_stream()
500 Add av_find_best_stream to libavformat/avformat.h.
502 2010-12-27 - r26103 - lavf 52.90.0
503 Add AVFMT_NOSTREAMS flag for formats with no streams,
504 like e.g. text metadata.
506 2010-12-22 - r26073 - lavu 50.36.0 - file.h
507 Add functions av_file_map() and av_file_unmap() in file.h.
509 2010-12-19 - r26056 - lavu 50.35.0 - error.h
510 Add "not found" error codes:
511 AVERROR_DEMUXER_NOT_FOUND
512 AVERROR_MUXER_NOT_FOUND
513 AVERROR_DECODER_NOT_FOUND
514 AVERROR_ENCODER_NOT_FOUND
515 AVERROR_PROTOCOL_NOT_FOUND
516 AVERROR_FILTER_NOT_FOUND
517 AVERROR_BSF_NOT_FOUND
518 AVERROR_STREAM_NOT_FOUND
520 2010-12-09 - r25923 - lavcore 0.16.0 - avcore.h
521 Move AV_NOPTS_VALUE, AV_TIME_BASE, AV_TIME_BASE_Q symbols from
522 avcodec.h to avcore.h.
524 2010-12-04 - r25886 - lavc 52.98.0 - CODEC_CAP_NEG_LINESIZES
525 Add CODEC_CAP_NEG_LINESIZES codec capability flag in avcodec.h.
527 2010-12-04 - r25879 - lavu 50.34.0 - av_get_pix_fmt_string()
528 Deprecate avcodec_pix_fmt_string() in favor of
529 pixdesc.h/av_get_pix_fmt_string().
531 2010-12-04 - r25878 - lavcore 0.15.0 - av_image_alloc()
532 Add av_image_alloc() to libavcore/imgutils.h.
534 2010-12-02 - r25862 - lavfi 1.67.0 - avfilter_graph_create_filter()
535 Add function avfilter_graph_create_filter() in avfiltergraph.h.
537 2010-11-25 - r25826 - lavfi 1.65.0 - avfilter_get_video_buffer_ref_from_arrays()
538 Add function avfilter_get_video_buffer_ref_from_arrays() in
541 2010-11-21 - r25787 - lavcore 0.14.0 - audioconvert.h
542 Add a public audio channel API in audioconvert.h, and deprecate the
543 corresponding functions in libavcodec:
544 avcodec_get_channel_name()
545 avcodec_get_channel_layout()
546 avcodec_get_channel_layout_string()
547 avcodec_channel_layout_num_channels()
548 and the CH_* macros defined in libavcodec/avcodec.h.
550 2010-11-21 - r25777 - lavf 52.85.0 - avformat.h
551 Add av_append_packet().
553 2010-11-21 - r25776 - lavc 52.97.0 - avcodec.h
554 Add av_grow_packet().
556 2010-11-17 - r25761 - lavcore 0.13.0 - parseutils.h
557 Add av_parse_color() declared in libavcore/parseutils.h.
559 2010-11-13 - r25745 - lavc 52.95.0 - AVCodecContext
560 Add AVCodecContext.subtitle_header and AVCodecContext.subtitle_header_size
563 2010-11-13 - r25740 - lavfi 1.62.0 - avfiltergraph.h
564 Make avfiltergraph.h public.
566 2010-11-13 - r25737 - lavfi 1.61.0 - avfiltergraph.h
567 Remove declarations from avfiltergraph.h for the functions:
568 avfilter_graph_check_validity()
569 avfilter_graph_config_links()
570 avfilter_graph_config_formats()
571 which are now internal.
572 Use avfilter_graph_config() instead.
574 2010-11-08 - r25708 - lavu 50.33.0 - eval.h
576 av_parse_and_eval_expr(),
580 in favor of the functions:
581 av_expr_parse_and_eval(),
586 2010-11-08 - r25707 - lavfi 1.59.0 - avfilter_free()
587 Rename avfilter_destroy() to avfilter_free().
588 This change breaks libavfilter API/ABI.
590 2010-11-07 - r25705 - lavfi 1.58.0 - avfiltergraph.h
591 Remove graphparser.h header, move AVFilterInOut and
592 avfilter_graph_parse() declarations to libavfilter/avfiltergraph.h.
594 2010-11-07 - r25700 - lavfi 1.57.0 - AVFilterInOut
595 Rename field AVFilterInOut.filter to AVFilterInOut.filter_ctx.
596 This change breaks libavfilter API.
598 2010-11-04 - r25674 - lavfi 1.56.0 - avfilter_graph_free()
599 Rename avfilter_graph_destroy() to avfilter_graph_free().
600 This change breaks libavfilter API/ABI.
602 2010-11-04 - r25673 - lavfi 1.55.0 - avfilter_graph_alloc()
603 Add avfilter_graph_alloc() to libavfilter/avfiltergraph.h.
605 2010-11-02 - r25654 - lavcore 0.12.0 - av_get_bits_per_sample_fmt()
606 Add av_get_bits_per_sample_fmt() to libavcore/samplefmt.h and
607 deprecate av_get_bits_per_sample_format().
609 2010-11-02 - r25653 - lavcore 0.11.0 - samplefmt.h
610 Add sample format functions in libavcore/samplefmt.h:
611 av_get_sample_fmt_name(),
613 av_get_sample_fmt_string(),
614 and deprecate the corresponding libavcodec/audioconvert.h functions:
615 avcodec_get_sample_fmt_name(),
616 avcodec_get_sample_fmt(),
617 avcodec_sample_fmt_string().
619 2010-11-02 - r25652 - lavcore 0.10.0 - samplefmt.h
620 Define enum AVSampleFormat in libavcore/samplefmt.h, deprecate enum
623 2010-10-16 - r25502 - lavfi 1.52.0 - avfilter_graph_config()
624 Add the function avfilter_graph_config() in avfiltergraph.h.
626 2010-10-15 - r25493 - lavf 52.83.0 - metadata API
627 Change demuxers to export metadata in generic format and
628 muxers to accept generic format. Deprecate the public
631 2010-10-10 - r25441 - lavfi 1.49.0 - AVFilterLink.time_base
632 Add time_base field to AVFilterLink.
634 2010-09-27 - r25236 - lavu 50.31.0 - av_set_options_string()
635 Move av_set_options_string() from libavfilter/parseutils.h to
638 2010-09-27 - r25227 - lavfi 1.47.0 - AVFilterLink
639 Make the AVFilterLink fields srcpad and dstpad store the pointers to
640 the source and destination pads, rather than their indexes.
642 2010-09-27 - r25225 - lavu 50.30.0 - av_get_token()
643 Move av_get_token() from libavfilter/parseutils.h to
644 libavutil/avstring.h.
646 2010-09-26 - r32368 - lsws 0.12.0 - swscale.h
647 Add the functions sws_alloc_context() and sws_init_context().
649 2010-09-26 - r25210 - lavu 50.29.0 - opt.h
650 Move libavcodec/opt.h to libavutil/opt.h.
652 2010-09-24 - r25174 - lavu 50.28.0 - av_log_set_flags()
653 Default of av_log() changed due to many problems to the old no repeat
654 detection. Read the docs of AV_LOG_SKIP_REPEATED in log.h before
655 enabling it for your app!.
657 2010-09-24 - r25167 - lavc 52.90.0 - av_opt_show2()
658 Deprecate av_opt_show() in favor or av_opt_show2().
660 2010-09-14 - r25120 - lavu 50.27.0 - av_popcount()
661 Add av_popcount() to libavutil/common.h.
663 2010-09-08 - r25076 - lavu 50.26.0 - av_get_cpu_flags()
664 Add av_get_cpu_flags().
666 2010-09-07 - r25067 - lavcore 0.9.0 - av_image_copy()
669 2010-09-07 - r25064 - lavcore 0.8.0 - av_image_copy_plane()
670 Add av_image_copy_plane().
672 2010-09-07 - r25057 - lavcore 0.7.0 - imgutils.h
673 Adopt hierarchical scheme for the imgutils.h function names,
674 deprecate the old names.
676 2010-09-04 - r25040 - lavu 50.25.0 - AV_CPU_FLAG_*
677 Deprecate the FF_MM_* flags defined in libavcodec/avcodec.h in favor
678 of the AV_CPU_FLAG_* flags defined in libavutil/cpu.h.
680 2010-08-26 - r24936 - lavc 52.87.0 - avcodec_get_channel_layout()
681 Add avcodec_get_channel_layout() in audioconvert.h.
683 2010-08-20 - r24851 - lavcore 0.6.0 - av_fill_image_max_pixsteps()
684 Rename av_fill_image_max_pixstep() to av_fill_image_max_pixsteps().
686 2010-08-18 - r24827 - lavcore 0.5.0 - av_fill_image_max_pixstep()
687 Add av_fill_image_max_pixstep() in imgutils.h.
689 2010-08-17 - r24814 - lavu 50.24.0 - AV_NE()
692 2010-08-17 - r24811 - lavfi 1.36.0 - audio framework
693 Implement AVFilterBufferRefAudioProps struct for audio properties,
694 get_audio_buffer(), filter_samples() functions and related changes.
696 2010-08-12 - r24787 - lavcore 0.4.0 - av_get_image_linesize()
697 Add av_get_image_linesize() in imgutils.h.
699 2010-08-11 - r24773 - lavfi 1.34.0 - AVFilterBufferRef
700 Resize data and linesize arrays in AVFilterBufferRef to 8.
702 This change breaks libavfilter API/ABI.
704 2010-08-11 - r24768 - lavc 52.85.0 - av_picture_data_copy()
705 Add av_picture_data_copy in avcodec.h.
707 2010-08-11 - r24765 - lavfi 1.33.0 - avfilter_open()
708 Change avfilter_open() signature:
709 AVFilterContext *avfilter_open(AVFilter *filter, const char *inst_name) ->
710 int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);
712 This change breaks libavfilter API/ABI.
714 2010-08-11 - r24763 - lavfi 1.32.0 - AVFilterBufferRef
715 Add a type field to AVFilterBufferRef, and move video specific
716 properties to AVFilterBufferRefVideoProps.
718 This change breaks libavfilter API/ABI.
720 2010-08-07 - r24732 - lavfi 1.31.0 - AVFilterLink
721 Rename AVFilterLink fields:
722 AVFilterLink.srcpic -> AVFilterLink.src_buf
723 AVFilterLink.cur_pic -> AVFilterLink.cur_buf
724 AVFilterLink.outpic -> AVFilterLink.out_buf
726 2010-08-07 - r24731 - lavfi 1.30.0
727 Rename functions and fields:
728 avfilter_(un)ref_pic -> avfilter_(un)ref_buffer
729 avfilter_copy_picref_props -> avfilter_copy_buffer_ref_props
730 AVFilterBufferRef.pic -> AVFilterBufferRef.buffer
732 2010-08-07 - r24730 - lavfi 1.29.0 - AVFilterBufferRef
733 Rename AVFilterPicRef to AVFilterBufferRef.
735 2010-08-07 - r24728 - lavfi 1.28.0 - AVFilterBuffer
736 Move format field from AVFilterBuffer to AVFilterPicRef.
738 2010-08-06 - r24709 - lavcore 0.3.0 - av_check_image_size()
739 Deprecate avcodec_check_dimensions() in favor of the function
740 av_check_image_size() defined in libavcore/imgutils.h.
742 2010-07-30 - r24592 - lavfi 1.27.0 - AVFilterBuffer
743 Increase size of the arrays AVFilterBuffer.data and
744 AVFilterBuffer.linesize from 4 to 8.
746 This change breaks libavfilter ABI.
748 2010-07-29 - r24583 - lavcore 0.2.0 - imgutils.h
749 Add functions av_fill_image_linesizes() and
750 av_fill_image_pointers(), declared in libavcore/imgutils.h.
752 2010-07-27 - r24518 - lavcore 0.1.0 - parseutils.h
753 Deprecate av_parse_video_frame_size() and av_parse_video_frame_rate()
754 defined in libavcodec in favor of the newly added functions
755 av_parse_video_size() and av_parse_video_rate() declared in
756 libavcore/parseutils.h.
758 2010-07-23 - r24439 - lavu 50.23.0 - mathematics.h
759 Add the M_PHI constant definition.
761 2010-07-22 - r24424 - lavfi 1.26.0 - media format generalization
762 Add a type field to AVFilterLink.
764 Change the field types:
765 enum PixelFormat format -> int format in AVFilterBuffer
766 enum PixelFormat *formats -> int *formats in AVFilterFormats
767 enum PixelFormat *format -> int format in AVFilterLink
769 Change the function signatures:
770 AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts); ->
771 AVFilterFormats *avfilter_make_format_list(const int *fmts);
773 int avfilter_add_colorspace(AVFilterFormats **avff, enum PixelFormat pix_fmt); ->
774 int avfilter_add_format (AVFilterFormats **avff, int fmt);
776 AVFilterFormats *avfilter_all_colorspaces(void); ->
777 AVFilterFormats *avfilter_all_formats (enum AVMediaType type);
779 This change breaks libavfilter API/ABI.
781 2010-07-21 - r24393 - lavcore 0.0.0
784 2010-07-17 - r24291 - lavfi 1.25.0 - AVFilterBuffer
785 Remove w and h fields from AVFilterBuffer.
787 2010-07-17 - r24284 - lavfi 1.24.0 - AVFilterBuffer
788 Rename AVFilterPic to AVFilterBuffer.
790 2010-07-17 - r24278 - lavf 52.74.0 - url_fskip()
791 Make url_fskip() return an int error code instead of void.
793 2010-07-11 - r24199 - lavc 52.83.0
794 Add AVCodecContext.lpc_type and AVCodecContext.lpc_passes fields.
796 Deprecate AVCodecContext.use_lpc.
798 2010-07-11 - r24185 - lavc 52.82.0 - avsubtitle_free()
799 Add a function for free the contents of a AVSubtitle generated by
800 avcodec_decode_subtitle.
802 2010-07-11 - r24174 - lavu 50.22.0 - bswap.h and intreadwrite.h
803 Make the bswap.h and intreadwrite.h API public.
805 2010-07-08 - r24101 - lavu 50.21.0 - pixdesc.h
806 Rename read/write_line() to av_read/write_image_line().
808 2010-07-07 - r24091 - lavfi 1.21.0 - avfilter_copy_picref_props()
809 Add avfilter_copy_picref_props().
811 2010-07-03 - r24021 - lavc 52.79.0
812 Add FF_COMPLIANCE_UNOFFICIAL and change all instances of
813 FF_COMPLIANCE_INOFFICIAL to use FF_COMPLIANCE_UNOFFICIAL.
815 2010-07-02 - r23985 - lavu 50.20.0 - lfg.h
816 Export av_lfg_init(), av_lfg_get(), av_mlfg_get(), and av_bmg_get() through
819 2010-06-28 - r23835 - lavfi 1.20.1 - av_parse_color()
820 Extend av_parse_color() syntax, make it accept an alpha value specifier and
821 set the alpha value to 255 by default.
823 2010-06-22 - r23706 - lavf 52.71.0 - URLProtocol.priv_data_size, priv_data_class
824 Add priv_data_size and priv_data_class to URLProtocol.
826 2010-06-22 - r23704 - lavf 52.70.0 - url_alloc(), url_connect()
827 Add url_alloc() and url_connect().
829 2010-06-22 - r23702 - lavf 52.69.0 - av_register_protocol2()
830 Add av_register_protocol2(), deprecating av_register_protocol().
832 2010-06-09 - r23551 - lavu 50.19.0 - av_compare_mod()
833 Add av_compare_mod() to libavutil/mathematics.h.
835 2010-06-05 - r23485 - lavu 50.18.0 - eval API
836 Make the eval API public.
838 2010-06-04 - r23461 - lavu 50.17.0 - AV_BASE64_SIZE
839 Add AV_BASE64_SIZE() macro.
841 2010-06-02 - r23421 - lavc 52.73.0 - av_get_codec_tag_string()
842 Add av_get_codec_tag_string().
844 2010-06-01 - r31301 - lsws 0.11.0 - convertPalette API
845 Add sws_convertPalette8ToPacked32() and sws_convertPalette8ToPacked24().
847 2010-05-26 - r23334 - lavc 52.72.0 - CODEC_CAP_EXPERIMENTAL
848 Add CODEC_CAP_EXPERIMENTAL flag.
849 NOTE: this was backported to 0.6
851 2010-05-23 - r23255 - lavu 50.16.0 - av_get_random_seed()
852 Add av_get_random_seed().
854 2010-05-18 - r23161 - lavf 52.63.0 - AVFMT_FLAG_RTP_HINT
855 Add AVFMT_FLAG_RTP_HINT as possible value for AVFormatContext.flags.
856 NOTE: this was backported to 0.6
858 2010-05-09 - r23066 - lavfi 1.20.0 - AVFilterPicRef
859 Add interlaced and top_field_first fields to AVFilterPicRef.
861 ------------------------------8<-------------------------------------
862 0.6 branch was cut here
863 ----------------------------->8--------------------------------------
865 2010-05-01 - r23002 - lavf 52.62.0 - probe function
866 Add av_probe_input_format2 to API, it allows ignoring probe
867 results below given score and returns the actual probe score.
869 2010-04-01 - r22806 - lavf 52.61.0 - metadata API
870 Add a flag for av_metadata_set2() to disable overwriting of
873 2010-04-01 - r22753 - lavc 52.66.0
874 Add avcodec_get_edge_width().
876 2010-03-31 - r22750 - lavc 52.65.0
877 Add avcodec_copy_context().
879 2010-03-31 - r22748 - lavf 52.60.0 - av_match_ext()
880 Make av_match_ext() public.
882 2010-03-31 - r22736 - lavu 50.14.0 - AVMediaType
883 Move AVMediaType enum from libavcodec to libavutil.
885 2010-03-31 - r22735 - lavc 52.64.0 - AVMediaType
886 Define AVMediaType enum, and use it instead of enum CodecType, which
887 is deprecated and will be dropped at the next major bump.
889 2010-03-25 - r22684 - lavu 50.13.0 - av_strerror()
890 Implement av_strerror().
892 2010-03-23 - r22649 - lavc 52.60.0 - av_dct_init()
893 Support DCT-I and DST-I.
895 2010-03-15 - r22540 - lavf 52.56.0 - AVFormatContext.start_time_realtime
896 Add AVFormatContext.start_time_realtime field.
898 2010-03-13 - r22506 - lavfi 1.18.0 - AVFilterPicRef.pos
899 Add AVFilterPicRef.pos field.
901 2010-03-13 - r22501 - lavu 50.12.0 - error.h
902 Move error code definitions from libavcodec/avcodec.h to
903 the new public header libavutil/error.h.
905 2010-03-07 - r22291 - lavc 52.56.0 - avfft.h
906 Add public FFT interface.
908 2010-03-06 - r22251 - lavu 50.11.0 - av_stristr()
911 2010-03-03 - r22174 - lavu 50.10.0 - av_tree_enumerate()
912 Add av_tree_enumerate().
914 2010-02-07 - r21673 - lavu 50.9.0 - av_compare_ts()
917 2010-02-05 - r30513 - lsws 0.10.0 - sws_getCoefficients()
918 Add sws_getCoefficients().
920 2010-02-01 - r21587 - lavf 52.50.0 - metadata API
921 Add a list of generic tag names, change 'author' -> 'artist',
924 2010-01-30 - r21545 - lavu 50.8.0 - av_get_pix_fmt()
925 Add av_get_pix_fmt().
927 2010-01-21 - r30381 - lsws 0.9.0 - sws_scale()
928 Change constness attributes of sws_scale() parameters.
930 2010-01-10 - r21121 - lavfi 1.15.0 - avfilter_graph_config_links()
931 Add a log_ctx parameter to avfilter_graph_config_links().
933 2010-01-07 - r30236 - lsws 0.8.0 - sws_isSupported{In,Out}put()
934 Add sws_isSupportedInput() and sws_isSupportedOutput() functions.
936 2010-01-06 - r21035 - lavfi 1.14.0 - avfilter_add_colorspace()
937 Change the avfilter_add_colorspace() signature, make it accept an
938 (AVFilterFormats **) rather than an (AVFilterFormats *) as before.
940 2010-01-03 - r21007 - lavfi 1.13.0 - avfilter_add_colorspace()
941 Add avfilter_add_colorspace().
943 2010-01-02 - r20998 - lavf 52.46.0 - av_match_ext()
944 Add av_match_ext(), it should be used in place of match_ext().
946 2010-01-01 - r20991 - lavf 52.45.0 - av_guess_format()
947 Add av_guess_format(), it should be used in place of guess_format().
949 2009-12-13 - r20834 - lavf 52.43.0 - metadata API
950 Add av_metadata_set2(), AV_METADATA_DONT_STRDUP_KEY and
951 AV_METADATA_DONT_STRDUP_VAL.
953 2009-12-13 - r20829 - lavu 50.7.0 - avstring.h API
956 2009-12-13 - r20826 - lavc 52.42.0 - AVStream
959 2009-12-12 - r20808 - lavu 50.6.0 - av_bmg_next()
960 Introduce the av_bmg_next() function.
962 2009-12-05 - r20734 - lavfi 1.12.0 - avfilter_draw_slice()
963 Add a slice_dir parameter to avfilter_draw_slice().
965 2009-11-26 - r20611 - lavfi 1.11.0 - AVFilter
966 Remove the next field from AVFilter, this is not anymore required.
968 2009-11-25 - r20607 - lavfi 1.10.0 - avfilter_next()
969 Introduce the avfilter_next() function.
971 2009-11-25 - r20605 - lavfi 1.9.0 - avfilter_register()
972 Change the signature of avfilter_register() to make it return an
973 int. This is required since now the registration operation may fail.
975 2009-11-25 - r20603 - lavu 50.5.0 - pixdesc.h API
976 Make the pixdesc.h API public.
978 2009-10-27 - r20385 - lavfi 1.5.0 - AVFilter.next
979 Add a next field to AVFilter, this is used for simplifying the
980 registration and management of the registered filters.
982 2009-10-23 - r20356 - lavfi 1.4.1 - AVFilter.description
983 Add a description field to AVFilter.
985 2009-10-19 - r20302 - lavfi 1.3.0 - avfilter_make_format_list()
986 Change the interface of avfilter_make_format_list() from
987 avfilter_make_format_list(int n, ...) to
988 avfilter_make_format_list(enum PixelFormat *pix_fmts).
990 2009-10-18 - r20272 - lavfi 1.0.0 - avfilter_get_video_buffer()
991 Make avfilter_get_video_buffer() recursive and add the w and h
994 2009-10-07 - r20189 - lavfi 0.5.1 - AVFilterPic
995 Add w and h fields to AVFilterPic.
997 2009-06-22 - r19250 - lavf 52.34.1 - AVFormatContext.packet_size
998 This is now an unsigned int instead of a signed int.
1000 2009-06-19 - r19222 - lavc 52.32.0 - AVSubtitle.pts
1001 Add a pts field to AVSubtitle which gives the subtitle packet pts
1002 in AV_TIME_BASE. Some subtitle de-/encoders (e.g. XSUB) will
1003 not work right without this.
1005 2009-06-03 - r19078 - lavc 52.30.2 - AV_PKT_FLAG_KEY
1006 PKT_FLAG_KEY has been deprecated and will be dropped at the next
1007 major version. Use AV_PKT_FLAG_KEY instead.
1009 2009-06-01 - r19025 - lavc 52.30.0 - av_lockmgr_register()
1010 av_lockmgr_register() can be used to register a callback function
1011 that lavc (and in the future, libraries that depend on lavc) can use
1012 to implement mutexes. The application should provide a callback function
1013 that implements the AV_LOCK_* operations described in avcodec.h.
1014 When the lock manager is registered, FFmpeg is guaranteed to behave
1015 correctly in a multi-threaded application.
1017 2009-04-30 - r18719 - lavc 52.28.0 - av_free_packet()
1018 av_free_packet() is no longer an inline function. It is now exported.
1020 2009-04-11 - r18431 - lavc 52.25.0 - deprecate av_destruct_packet_nofree()
1021 Please use NULL instead. This has been supported since r16506
1022 (lavf > 52.23.1, lavc > 52.10.0).
1024 2009-04-07 - r18351 - lavc 52.23.0 - avcodec_decode_video/audio/subtitle
1025 The old decoding functions are deprecated, all new code should use the
1026 new functions avcodec_decode_video2(), avcodec_decode_audio3() and
1027 avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt
1028 argument instead of a const uint8_t *buf / int buf_size pair.
1030 2009-04-03 - r18321 - lavu 50.3.0 - av_fifo_space()
1031 Introduce the av_fifo_space() function.
1033 2009-04-02 - r18317 - lavc 52.23.0 - AVPacket
1034 Move AVPacket declaration from libavformat/avformat.h to
1035 libavcodec/avcodec.h.
1037 2009-03-22 - r18163 - lavu 50.2.0 - RGB32 pixel formats
1038 Convert the pixel formats PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR,
1039 PIX_FMT_BGRA, which were defined as macros, into enum PixelFormat values.
1040 Conversely PIX_FMT_RGB32, PIX_FMT_RGB32_1, PIX_FMT_BGR32 and
1041 PIX_FMT_BGR32_1 are now macros.
1042 avcodec_get_pix_fmt() now recognizes the "rgb32" and "bgr32" aliases.
1043 Re-sort the enum PixelFormat list accordingly.
1044 This change breaks API/ABI backward compatibility.
1046 2009-03-22 - r18133 - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants
1047 Add the enum PixelFormat values:
1048 PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,
1049 PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.
1051 2009-03-21 - r18116 - lavu 50.0.0 - av_random*
1052 The Mersenne Twister PRNG implemented through the av_random* functions
1053 was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions
1056 2009-03-08 - r17869 - lavu 50.0.0 - AVFifoBuffer
1057 av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped
1058 and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write
1059 and av_fifo_realloc2.
1060 In addition, the order of the function arguments of av_fifo_generic_read
1061 was changed to match av_fifo_generic_write.
1062 The AVFifoBuffer/struct AVFifoBuffer may only be used in an opaque way by
1063 applications, they may not use sizeof() or directly access members.
1065 2009-03-01 - r17682 - lavf 52.31.0 - Generic metadata API
1066 Introduce a new metadata API (see av_metadata_get() and friends).
1067 The old API is now deprecated and should not be used anymore. This especially
1068 includes the following structure fields:
1069 - AVFormatContext.title
1070 - AVFormatContext.author
1071 - AVFormatContext.copyright
1072 - AVFormatContext.comment
1073 - AVFormatContext.album
1074 - AVFormatContext.year
1075 - AVFormatContext.track
1076 - AVFormatContext.genre
1079 - AVProgram.provider_name