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 2011-09-xx - xxxxxxx - lavfi 2.x.0
17 Simplify signature for avfilter_get_audio_buffer(), make it
18 consistent with avfilter_get_video_buffer().
20 2011-09-06 - xxxxxxx - lavfi 2.39.0
21 Rename libavfilter/vsink_buffer.h to libavfilter/buffersink.h.
23 2011-09-06 - xxxxxxx - lavfi 2.38.0
24 Unify video and audio sink API.
26 In particular, add av_buffersink_get_buffer_ref(), deprecate
27 av_vsink_buffer_get_video_buffer_ref() and change the value for the
28 opaque field passed to the abuffersink init function.
30 2011-09-xx - xxxxxxx - lavu 51.16.0
33 2011-08-22 - dacd827 - lavf 53.10.0
34 Add av_find_program_from_stream().
36 2011-08-20 - 69e2c1a - lavu 51.13.0
37 Add av_get_media_type_string().
39 2011-08-xx - xxxxxxx - lavc 53.13.0
42 Add {avcodec,avformat,sws}_get_class().
44 2011-08-xx - xxxxxxx - lavu 51.15.0
45 Add AV_OPT_SEARCH_FAKE_OBJ flag for av_opt_find() function.
47 2011-08-14 - 323b930 - lavu 51.12.0
48 Add av_fifo_peek2(), deprecate av_fifo_peek().
50 2011-08-xx - 48f9e45 - lavf 53.8.0
51 Add avformat_query_codec().
53 2011-08-xx - bca06e7 - lavc 53.11.0
54 Add avcodec_get_type().
56 2011-08-06 - 2f63440 - lavf 53.7.0
57 Add error_recognition to AVFormatContext.
59 2011-08-02 - 9d39cbf - lavc 53.9.1
60 Add AV_PKT_FLAG_CORRUPT AVPacket flag.
62 2011-07-16 - b57df29 - lavfi 2.27.0
63 Add audio packing negotiation fields and helper functions.
65 In particular, add AVFilterPacking enum, planar, in_packings and
66 out_packings fields to AVFilterLink, and the functions:
67 avfilter_set_common_packing_formats()
68 avfilter_all_packing_formats()
70 2011-07-10 - a67c061 - lavf 53.6.0
71 Add avformat_find_stream_info(), deprecate av_find_stream_info().
73 2011-07-10 - 0b950fe - lavc 53.8.0
74 Add avcodec_open2(), deprecate avcodec_open().
76 2011-07-01 - b442ca6 - lavf 53.5.0 - avformat.h
77 Add function av_get_output_timestamp().
79 2011-06-28 - 5129336 - lavu 51.11.0 - avutil.h
80 Define the AV_PICTURE_TYPE_NONE value in AVPictureType enum.
82 2011-06-19 - fd2c0a5 - lavfi 2.23.0 - avfilter.h
83 Add layout negotiation fields and helper functions.
85 In particular, add in_chlayouts and out_chlayouts to AVFilterLink,
87 avfilter_set_common_sample_formats()
88 avfilter_set_common_channel_layouts()
89 avfilter_all_channel_layouts()
91 2011-06-19 - 527ca39 - lavfi 2.22.0 - AVFilterFormats
92 Change type of AVFilterFormats.formats from int * to int64_t *,
93 and update formats handling API accordingly.
95 avfilter_make_format_list() still takes a int32_t array and converts
96 it to int64_t. A new function, avfilter_make_format64_list(), that
97 takes int64_t arrays has been added.
99 2011-06-19 - 44f669e - lavfi 2.21.0 - vsink_buffer.h
100 Add video sink buffer and vsink_buffer.h public header.
102 2011-06-12 - 9fdf772 - lavfi 2.18.0 - avcodec.h
103 Add avfilter_get_video_buffer_ref_from_frame() function in
104 libavfilter/avcodec.h.
106 2011-06-12 - c535494 - lavfi 2.17.0 - avfiltergraph.h
107 Add avfilter_inout_alloc() and avfilter_inout_free() functions.
109 2011-06-12 - 6119b23 - lavfi 2.16.0 - avfilter_graph_parse()
110 Change avfilter_graph_parse() signature.
112 2011-06-23 - 67e9ae1 - lavu 51.8.0 - attributes.h
113 Add av_printf_format().
115 2011-06-16 - 05e84c9, 25de595 - lavf 53.2.0 - avformat.h
116 Add avformat_open_input and avformat_write_header().
117 Deprecate av_open_input_stream, av_open_input_file,
118 AVFormatParameters and av_write_header.
120 2011-06-16 - 7e83e1c, dc59ec5 - lavu 51.7.0 - opt.h
121 Add av_opt_set_dict() and av_opt_find().
122 Deprecate av_find_opt().
123 Add AV_DICT_APPEND flag.
125 2011-06-10 - cb7c11c - lavu 51.6.0 - opt.h
126 Add av_opt_flag_is_set().
128 2011-06-10 - c381960 - lavfi 2.15.0 - avfilter_get_audio_buffer_ref_from_arrays
129 Add avfilter_get_audio_buffer_ref_from_arrays() to avfilter.h.
131 2011-06-09 - d9f80ea - lavu 51.8.0 - AVMetadata
132 Move AVMetadata from lavf to lavu and rename it to
133 AVDictionary -- new installed header dict.h.
134 All av_metadata_* functions renamed to av_dict_*.
136 2011-06-07 - a6703fa - lavu 51.8.0 - av_get_bytes_per_sample()
137 Add av_get_bytes_per_sample() in libavutil/samplefmt.h.
138 Deprecate av_get_bits_per_sample_fmt().
140 2011-06-xx - b39b062 - lavu 51.8.0 - opt.h
141 Add av_opt_free convenience function.
143 2011-06-06 - 95a0242 - lavfi 2.14.0 - AVFilterBufferRefAudioProps
144 Remove AVFilterBufferRefAudioProps.size, and use nb_samples in
145 avfilter_get_audio_buffer() and avfilter_default_get_audio_buffer() in
148 2011-06-06 - 0bc2cca - lavu 51.6.0 - av_samples_alloc()
149 Switch nb_channels and nb_samples parameters order in
152 2011-06-06 - e1c7414 - lavu 51.5.0 - av_samples_*
153 Change the data layout created by av_samples_fill_arrays() and
156 2011-06-06 - 27bcf55 - lavfi 2.13.0 - vsrc_buffer.h
157 Make av_vsrc_buffer_add_video_buffer_ref() accepts an additional
158 flags parameter in input.
160 2011-06-03 - e977ca2 - lavfi 2.12.0 - avfilter_link_free()
161 Add avfilter_link_free() function.
163 2011-06-02 - 5ad38d9 - lavu 51.4.0 - av_force_cpu_flags()
164 Add av_cpu_flags() in libavutil/cpu.h.
166 2011-05-28 - e71f260 - lavu 51.3.0 - pixdesc.h
167 Add av_get_pix_fmt_name() in libavutil/pixdesc.h, and deprecate
168 avcodec_get_pix_fmt_name() in libavcodec/avcodec.h in its favor.
170 2011-05-25 - 30315a8 - lavf 53.3.0 - avformat.h
171 Add fps_probe_size to AVFormatContext.
173 2011-05-22 - 5ecdfd0 - lavf 53.2.0 - avformat.h
174 Introduce avformat_alloc_output_context2() and deprecate
175 avformat_alloc_output_context().
177 2011-05-22 - 83db719 - lavfi 2.10.0 - vsrc_buffer.h
178 Make libavfilter/vsrc_buffer.h public.
180 2011-05-19 - c000a9f - lavfi 2.8.0 - avcodec.h
181 Add av_vsrc_buffer_add_frame() to libavfilter/avcodec.h.
183 2011-05-14 - 9fdf772 - lavfi 2.6.0 - avcodec.h
184 Add avfilter_get_video_buffer_ref_from_frame() to libavfilter/avcodec.h.
186 2011-05-18 - 64150ff - lavc 53.7.0 - AVCodecContext.request_sample_fmt
187 Add request_sample_fmt field to AVCodecContext.
189 2011-05-10 - 188dea1 - lavc 53.6.0 - avcodec.h
190 Deprecate AVLPCType and the following fields in
191 AVCodecContext: lpc_coeff_precision, prediction_order_method,
192 min_partition_order, max_partition_order, lpc_type, lpc_passes.
193 Corresponding FLAC encoder options should be used instead.
195 2011-05-07 - 9fdf772 - lavfi 2.5.0 - avcodec.h
196 Add libavfilter/avcodec.h header and avfilter_copy_frame_props()
199 2011-05-07 - 18ded93 - lavc 53.5.0 - AVFrame
200 Add format field to AVFrame.
202 2011-05-07 - 22333a6 - lavc 53.4.0 - AVFrame
203 Add width and height fields to AVFrame.
205 2011-05-01 - 35fe66a - lavfi 2.4.0 - avfilter.h
206 Rename AVFilterBufferRefVideoProps.pixel_aspect to
209 2011-05-01 - 77e9dee - lavc 53.3.0 - AVFrame
210 Add a sample_aspect_ratio field to AVFrame.
212 2011-05-01 - 1ba5727 - lavc 53.2.0 - AVFrame
213 Add a pkt_pos field to AVFrame.
215 2011-04-29 - 35ceaa7 - lavu 51.2.0 - mem.h
216 Add av_dynarray_add function for adding
217 an element to a dynamic array.
219 2011-04-26 - bebe72f - lavu 51.1.0 - avutil.h
220 Add AVPictureType enum and av_get_picture_type_char(), deprecate
221 FF_*_TYPE defines and av_get_pict_type_char() defined in
222 libavcodec/avcodec.h.
224 2011-04-26 - 10d3940 - lavfi 2.3.0 - avfilter.h
225 Add pict_type and key_frame fields to AVFilterBufferRefVideo.
227 2011-04-26 - 7a11c82 - lavfi 2.2.0 - vsrc_buffer
228 Add sample_aspect_ratio fields to vsrc_buffer arguments
230 2011-04-21 - 94f7451 - lavc 53.1.0 - avcodec.h
231 Add CODEC_CAP_SLICE_THREADS for codecs supporting sliced threading.
233 2011-04-15 - lavc 52.120.0 - avcodec.h
234 AVPacket structure got additional members for passing side information:
235 4de339e introduce side information for AVPacket
236 2d8591c make containers pass palette change in AVPacket
238 2011-04-12 - lavf 52.107.0 - avio.h
239 Avio cleanup, part II - deprecate the entire URLContext API:
240 175389c add avio_check as a replacement for url_exist
241 ff1ec0c add avio_pause and avio_seek_time as replacements
242 for _av_url_read_fseek/fpause
243 cdc6a87 deprecate av_protocol_next(), avio_enum_protocols
244 should be used instead.
245 80c6e23 rename url_set_interrupt_cb->avio_set_interrupt_cb.
246 f87b1b3 rename open flags: URL_* -> AVIO_*
247 f8270bb add avio_enum_protocols.
248 5593f03 deprecate URLProtocol.
249 c486dad deprecate URLContext.
250 026e175 deprecate the typedef for URLInterruptCB
251 8e76a19 deprecate av_register_protocol2.
252 b840484 deprecate URL_PROTOCOL_FLAG_NESTED_SCHEME
253 1305d93 deprecate av_url_read_seek
254 fa104e1 deprecate av_url_read_pause
255 727c7aa deprecate url_get_filename().
256 5958df3 deprecate url_max_packet_size().
257 1869ea0 deprecate url_get_file_handle().
258 32a97d4 deprecate url_filesize().
259 e52a914 deprecate url_close().
260 58a48c6 deprecate url_seek().
261 925e908 deprecate url_write().
262 dce3756 deprecate url_read_complete().
263 bc371ac deprecate url_read().
264 0589da0 deprecate url_open().
265 62eaaea deprecate url_connect.
266 5652bb9 deprecate url_alloc.
267 333e894 deprecate url_open_protocol
268 e230705 deprecate url_poll and URLPollEntry
270 2011-04-08 - lavf 52.106.0 - avformat.h
271 Minor avformat.h cleanup:
272 a9bf9d8 deprecate av_guess_image2_codec
273 c3675df rename avf_sdp_create->av_sdp_create
275 2011-04-03 - lavf 52.105.0 - avio.h
276 Large-scale renaming/deprecating of AVIOContext-related functions:
277 724f6a0 deprecate url_fdopen
278 403ee83 deprecate url_open_dyn_packet_buf
279 6dc7d80 rename url_close_dyn_buf -> avio_close_dyn_buf
280 b92c545 rename url_open_dyn_buf -> avio_open_dyn_buf
281 8978fed introduce an AVIOContext.seekable field as a replacement for
282 AVIOContext.is_streamed and url_is_streamed()
283 b64030f deprecate get_checksum()
284 4c4427a deprecate init_checksum()
285 4ec153b deprecate udp_set_remote_url/get_local_port
286 933e90a deprecate av_url_read_fseek/fpause
287 8d9769a deprecate url_fileno
288 b7f2fdd rename put_flush_packet -> avio_flush
289 35f1023 deprecate url_close_buf
290 83fddae deprecate url_open_buf
291 d9d86e0 rename url_fprintf -> avio_printf
292 59f65d9 deprecate url_setbufsize
293 3e68b3b deprecate url_ferror
294 e8bb2e2 deprecate url_fget_max_packet_size
295 76aa876 rename url_fsize -> avio_size
296 e519753 deprecate url_fgetc
297 655e45e deprecate url_fgets
298 a2704c9 rename url_ftell -> avio_tell
299 e16ead0 deprecate get_strz() in favor of avio_get_str
300 0300db8,2af07d3 rename url_fskip -> avio_skip
301 6b4aa5d rename url_fseek -> avio_seek
302 61840b4 deprecate put_tag
303 22a3212 rename url_fopen/fclose -> avio_open/close.
304 0ac8e2b deprecate put_nbyte
305 77eb550 rename put_byte -> avio_w8
306 put_[b/l]e<type> -> avio_w[b/l]<type>
307 put_buffer -> avio_write
308 b7effd4 rename get_byte -> avio_r8,
309 get_[b/l]e<type> -> avio_r[b/l]<type>
310 get_buffer -> avio_read
311 b3db9ce deprecate get_partial_buffer
312 8d9ac96 rename av_alloc_put_byte -> avio_alloc_context
314 2011-03-25 - 34b47d7 - lavc 52.115.0 - AVCodecContext.audio_service_type
315 Add audio_service_type field to AVCodecContext.
317 2011-03-17 - e309fdc - lavu 50.40.0 - pixfmt.h
318 Add PIX_FMT_BGR48LE and PIX_FMT_BGR48BE pixel formats
320 2011-03-02 - 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.
325 2011-02-20 - 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.
331 2011-02-16 - 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.
337 2011-02-15 - lavu 52.38.0 - merge libavcore
338 libavcore is merged back completely into libavutil
340 2011-02-10 - 55bad0c - lavc 52.113.0 - vbv_delay
341 Add vbv_delay field to AVCodecContext
343 2011-02-14 - 24a83bd - lavf 52.100.0 - AV_DISPOSITION_CLEAN_EFFECTS
344 Add AV_DISPOSITION_CLEAN_EFFECTS disposition flag.
346 2011-02-14 - 910b5b8 - lavfi 1.76.0 - AVFilterLink sample_aspect_ratio
347 Add sample_aspect_ratio field to AVFilterLink.
349 2011-02-10 - 12c14cd - lavf 52.99.0 - AVStream.disposition
350 Add AV_DISPOSITION_HEARING_IMPAIRED and AV_DISPOSITION_VISUAL_IMPAIRED.
352 2011-02-09 - 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.
356 2011-02-09 - 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.
361 2011-02-08 - 3940caa - lavf 52.98.0 - av_probe_input_buffer
362 Add av_probe_input_buffer() to avformat.h for probing format from a
365 2011-02-06 - fe174fc - lavf 52.97.0 - avio.h
366 Add flag for non-blocking protocols: URL_FLAG_NONBLOCK
368 2011-02-04 - f124b08 - lavf 52.96.0 - avformat_free_context()
369 Add avformat_free_context() in avformat.h.
371 2011-02-03 - f5b82f4 - lavc 52.109.0 - add CODEC_ID_PRORES
372 Add CODEC_ID_PRORES to avcodec.h.
374 2011-02-03 - fe9a3fb - lavc 52.109.0 - H.264 profile defines
375 Add defines for H.264 * Constrained Baseline and Intra profiles
377 2011-02-02 - 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
383 2011-02-02 - dfd2a00 - lavu 50.37.0 - log.h
386 2011-01-31 - 7b3ea55 - lavfi 1.76.0 - vsrc_buffer
387 Add sample_aspect_ratio fields to vsrc_buffer arguments
389 2011-01-31 - 910b5b8 - lavfi 1.75.0 - AVFilterLink sample_aspect_ratio
390 Add sample_aspect_ratio field to AVFilterLink.
392 2011-01-15 - r26374 - lavfi 1.74.0 - AVFilterBufferRefAudioProps
393 Rename AVFilterBufferRefAudioProps.samples_nb to nb_samples.
395 2011-01-14 - r26330 - lavf 52.93.0 - av_metadata_copy()
396 Add av_metadata_copy() in avformat.h.
398 2011-01-07 - r26262 - lavc 52.107.0 - deprecate reordered_opaque
399 Deprecate reordered_opaque in favor of pkt_pts/dts.
401 2011-01-07 - r26261 - lavc 52.106.0 - pkt_dts
402 Add pkt_dts to AVFrame, this will in the future allow multithreading decoders
405 2011-01-07 - r26260 - lavc 52.105.0 - pkt_pts
406 Add pkt_pts to AVFrame.
408 2011-01-07 - r26259 - lavc 52.104.0 - av_get_profile_name()
409 Add av_get_profile_name to libavcodec/avcodec.h.
411 2010-12-27 - r26108 - lavfi 1.71.0 - AV_PERM_NEG_LINESIZES
412 Add AV_PERM_NEG_LINESIZES in avfilter.h.
414 2010-12-27 - r26104 - lavf 52.91.0 - av_find_best_stream()
415 Add av_find_best_stream to libavformat/avformat.h.
417 2010-12-27 - r26103 - lavf 52.90.0
418 Add AVFMT_NOSTREAMS flag for formats with no streams,
419 like e.g. text metadata.
421 2010-12-22 - r26073 - lavu 50.36.0 - file.h
422 Add functions av_file_map() and av_file_unmap() in file.h.
424 2010-12-19 - r26056 - lavu 50.35.0 - error.h
425 Add "not found" error codes:
426 AVERROR_DEMUXER_NOT_FOUND
427 AVERROR_MUXER_NOT_FOUND
428 AVERROR_DECODER_NOT_FOUND
429 AVERROR_ENCODER_NOT_FOUND
430 AVERROR_PROTOCOL_NOT_FOUND
431 AVERROR_FILTER_NOT_FOUND
432 AVERROR_BSF_NOT_FOUND
433 AVERROR_STREAM_NOT_FOUND
435 2010-12-09 - r25923 - lavcore 0.16.0 - avcore.h
436 Move AV_NOPTS_VALUE, AV_TIME_BASE, AV_TIME_BASE_Q symbols from
437 avcodec.h to avcore.h.
439 2010-12-04 - r25886 - lavc 52.98.0 - CODEC_CAP_NEG_LINESIZES
440 Add CODEC_CAP_NEG_LINESIZES codec capability flag in avcodec.h.
442 2010-12-04 - r25879 - lavu 50.34.0 - av_get_pix_fmt_string()
443 Deprecate avcodec_pix_fmt_string() in favor of
444 pixdesc.h/av_get_pix_fmt_string().
446 2010-12-04 - r25878 - lavcore 0.15.0 - av_image_alloc()
447 Add av_image_alloc() to libavcore/imgutils.h.
449 2010-12-02 - r25862 - lavfi 1.67.0 - avfilter_graph_create_filter()
450 Add function avfilter_graph_create_filter() in avfiltergraph.h.
452 2010-11-25 - r25826 - lavfi 1.65.0 - avfilter_get_video_buffer_ref_from_arrays()
453 Add function avfilter_get_video_buffer_ref_from_arrays() in
456 2010-11-21 - r25787 - lavcore 0.14.0 - audioconvert.h
457 Add a public audio channel API in audioconvert.h, and deprecate the
458 corresponding functions in libavcodec:
459 avcodec_get_channel_name()
460 avcodec_get_channel_layout()
461 avcodec_get_channel_layout_string()
462 avcodec_channel_layout_num_channels()
463 and the CH_* macros defined in libavcodec/avcodec.h.
465 2010-11-21 - r25777 - lavf 52.85.0 - avformat.h
466 Add av_append_packet().
468 2010-11-21 - r25776 - lavc 52.97.0 - avcodec.h
469 Add av_grow_packet().
471 2010-11-17 - r25761 - lavcore 0.13.0 - parseutils.h
472 Add av_parse_color() declared in libavcore/parseutils.h.
474 2010-11-13 - r25745 - lavc 52.95.0 - AVCodecContext
475 Add AVCodecContext.subtitle_header and AVCodecContext.subtitle_header_size
478 2010-11-13 - r25740 - lavfi 1.62.0 - avfiltergraph.h
479 Make avfiltergraph.h public.
481 2010-11-13 - r25737 - lavfi 1.61.0 - avfiltergraph.h
482 Remove declarations from avfiltergraph.h for the functions:
483 avfilter_graph_check_validity()
484 avfilter_graph_config_links()
485 avfilter_graph_config_formats()
486 which are now internal.
487 Use avfilter_graph_config() instead.
489 2010-11-08 - r25708 - lavu 50.33.0 - eval.h
491 av_parse_and_eval_expr(),
495 in favor of the functions:
496 av_expr_parse_and_eval(),
501 2010-11-08 - r25707 - lavfi 1.59.0 - avfilter_free()
502 Rename avfilter_destroy() to avfilter_free().
503 This change breaks libavfilter API/ABI.
505 2010-11-07 - r25705 - lavfi 1.58.0 - avfiltergraph.h
506 Remove graphparser.h header, move AVFilterInOut and
507 avfilter_graph_parse() declarations to libavfilter/avfiltergraph.h.
509 2010-11-07 - r25700 - lavfi 1.57.0 - AVFilterInOut
510 Rename field AVFilterInOut.filter to AVFilterInOut.filter_ctx.
511 This change breaks libavfilter API.
513 2010-11-04 - r25674 - lavfi 1.56.0 - avfilter_graph_free()
514 Rename avfilter_graph_destroy() to avfilter_graph_free().
515 This change breaks libavfilter API/ABI.
517 2010-11-04 - r25673 - lavfi 1.55.0 - avfilter_graph_alloc()
518 Add avfilter_graph_alloc() to libavfilter/avfiltergraph.h.
520 2010-11-02 - r25654 - lavcore 0.12.0 - av_get_bits_per_sample_fmt()
521 Add av_get_bits_per_sample_fmt() to libavcore/samplefmt.h and
522 deprecate av_get_bits_per_sample_format().
524 2010-11-02 - r25653 - lavcore 0.11.0 - samplefmt.h
525 Add sample format functions in libavcore/samplefmt.h:
526 av_get_sample_fmt_name(),
528 av_get_sample_fmt_string(),
529 and deprecate the corresponding libavcodec/audioconvert.h functions:
530 avcodec_get_sample_fmt_name(),
531 avcodec_get_sample_fmt(),
532 avcodec_sample_fmt_string().
534 2010-11-02 - r25652 - lavcore 0.10.0 - samplefmt.h
535 Define enum AVSampleFormat in libavcore/samplefmt.h, deprecate enum
538 2010-10-16 - r25502 - lavfi 1.52.0 - avfilter_graph_config()
539 Add the function avfilter_graph_config() in avfiltergraph.h.
541 2010-10-15 - r25493 - lavf 52.83.0 - metadata API
542 Change demuxers to export metadata in generic format and
543 muxers to accept generic format. Deprecate the public
546 2010-10-10 - r25441 - lavfi 1.49.0 - AVFilterLink.time_base
547 Add time_base field to AVFilterLink.
549 2010-09-27 - r25236 - lavu 50.31.0 - av_set_options_string()
550 Move av_set_options_string() from libavfilter/parseutils.h to
553 2010-09-27 - r25227 - lavfi 1.47.0 - AVFilterLink
554 Make the AVFilterLink fields srcpad and dstpad store the pointers to
555 the source and destination pads, rather than their indexes.
557 2010-09-27 - r25225 - lavu 50.30.0 - av_get_token()
558 Move av_get_token() from libavfilter/parseutils.h to
559 libavutil/avstring.h.
561 2010-09-26 - r32368 - lsws 0.12.0 - swscale.h
562 Add the functions sws_alloc_context() and sws_init_context().
564 2010-09-26 - r25210 - lavu 50.29.0 - opt.h
565 Move libavcodec/opt.h to libavutil/opt.h.
567 2010-09-24 - r25174 - lavu 50.28.0 - av_log_set_flags()
568 Default of av_log() changed due to many problems to the old no repeat
569 detection. Read the docs of AV_LOG_SKIP_REPEATED in log.h before
570 enabling it for your app!.
572 2010-09-24 - r25167 - lavc 52.90.0 - av_opt_show2()
573 Deprecate av_opt_show() in favor or av_opt_show2().
575 2010-09-14 - r25120 - lavu 50.27.0 - av_popcount()
576 Add av_popcount() to libavutil/common.h.
578 2010-09-08 - r25076 - lavu 50.26.0 - av_get_cpu_flags()
579 Add av_get_cpu_flags().
581 2010-09-07 - r25067 - lavcore 0.9.0 - av_image_copy()
584 2010-09-07 - r25064 - lavcore 0.8.0 - av_image_copy_plane()
585 Add av_image_copy_plane().
587 2010-09-07 - r25057 - lavcore 0.7.0 - imgutils.h
588 Adopt hierarchical scheme for the imgutils.h function names,
589 deprecate the old names.
591 2010-09-04 - r25040 - lavu 50.25.0 - AV_CPU_FLAG_*
592 Deprecate the FF_MM_* flags defined in libavcodec/avcodec.h in favor
593 of the AV_CPU_FLAG_* flags defined in libavutil/cpu.h.
595 2010-08-26 - r24936 - lavc 52.87.0 - avcodec_get_channel_layout()
596 Add avcodec_get_channel_layout() in audioconvert.h.
598 2010-08-20 - r24851 - lavcore 0.6.0 - av_fill_image_max_pixsteps()
599 Rename av_fill_image_max_pixstep() to av_fill_image_max_pixsteps().
601 2010-08-18 - r24827 - lavcore 0.5.0 - av_fill_image_max_pixstep()
602 Add av_fill_image_max_pixstep() in imgutils.h.
604 2010-08-17 - r24814 - lavu 50.24.0 - AV_NE()
607 2010-08-17 - r24811 - lavfi 1.36.0 - audio framework
608 Implement AVFilterBufferRefAudioProps struct for audio properties,
609 get_audio_buffer(), filter_samples() functions and related changes.
611 2010-08-12 - r24787 - lavcore 0.4.0 - av_get_image_linesize()
612 Add av_get_image_linesize() in imgutils.h.
614 2010-08-11 - r24773 - lavfi 1.34.0 - AVFilterBufferRef
615 Resize data and linesize arrays in AVFilterBufferRef to 8.
617 This change breaks libavfilter API/ABI.
619 2010-08-11 - r24768 - lavc 52.85.0 - av_picture_data_copy()
620 Add av_picture_data_copy in avcodec.h.
622 2010-08-11 - r24765 - lavfi 1.33.0 - avfilter_open()
623 Change avfilter_open() signature:
624 AVFilterContext *avfilter_open(AVFilter *filter, const char *inst_name) ->
625 int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);
627 This change breaks libavfilter API/ABI.
629 2010-08-11 - r24763 - lavfi 1.32.0 - AVFilterBufferRef
630 Add a type field to AVFilterBufferRef, and move video specific
631 properties to AVFilterBufferRefVideoProps.
633 This change breaks libavfilter API/ABI.
635 2010-08-07 - r24732 - lavfi 1.31.0 - AVFilterLink
636 Rename AVFilterLink fields:
637 AVFilterLink.srcpic -> AVFilterLink.src_buf
638 AVFilterLink.cur_pic -> AVFilterLink.cur_buf
639 AVFilterLink.outpic -> AVFilterLink.out_buf
641 2010-08-07 - r24731 - lavfi 1.30.0
642 Rename functions and fields:
643 avfilter_(un)ref_pic -> avfilter_(un)ref_buffer
644 avfilter_copy_picref_props -> avfilter_copy_buffer_ref_props
645 AVFilterBufferRef.pic -> AVFilterBufferRef.buffer
647 2010-08-07 - r24730 - lavfi 1.29.0 - AVFilterBufferRef
648 Rename AVFilterPicRef to AVFilterBufferRef.
650 2010-08-07 - r24728 - lavfi 1.28.0 - AVFilterBuffer
651 Move format field from AVFilterBuffer to AVFilterPicRef.
653 2010-08-06 - r24709 - lavcore 0.3.0 - av_check_image_size()
654 Deprecate avcodec_check_dimensions() in favor of the function
655 av_check_image_size() defined in libavcore/imgutils.h.
657 2010-07-30 - r24592 - lavfi 1.27.0 - AVFilterBuffer
658 Increase size of the arrays AVFilterBuffer.data and
659 AVFilterBuffer.linesize from 4 to 8.
661 This change breaks libavfilter ABI.
663 2010-07-29 - r24583 - lavcore 0.2.0 - imgutils.h
664 Add functions av_fill_image_linesizes() and
665 av_fill_image_pointers(), declared in libavcore/imgutils.h.
667 2010-07-27 - r24518 - lavcore 0.1.0 - parseutils.h
668 Deprecate av_parse_video_frame_size() and av_parse_video_frame_rate()
669 defined in libavcodec in favor of the newly added functions
670 av_parse_video_size() and av_parse_video_rate() declared in
671 libavcore/parseutils.h.
673 2010-07-23 - r24439 - lavu 50.23.0 - mathematics.h
674 Add the M_PHI constant definition.
676 2010-07-22 - r24424 - lavfi 1.26.0 - media format generalization
677 Add a type field to AVFilterLink.
679 Change the field types:
680 enum PixelFormat format -> int format in AVFilterBuffer
681 enum PixelFormat *formats -> int *formats in AVFilterFormats
682 enum PixelFormat *format -> int format in AVFilterLink
684 Change the function signatures:
685 AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts); ->
686 AVFilterFormats *avfilter_make_format_list(const int *fmts);
688 int avfilter_add_colorspace(AVFilterFormats **avff, enum PixelFormat pix_fmt); ->
689 int avfilter_add_format (AVFilterFormats **avff, int fmt);
691 AVFilterFormats *avfilter_all_colorspaces(void); ->
692 AVFilterFormats *avfilter_all_formats (enum AVMediaType type);
694 This change breaks libavfilter API/ABI.
696 2010-07-21 - r24393 - lavcore 0.0.0
699 2010-07-17 - r24291 - lavfi 1.25.0 - AVFilterBuffer
700 Remove w and h fields from AVFilterBuffer.
702 2010-07-17 - r24284 - lavfi 1.24.0 - AVFilterBuffer
703 Rename AVFilterPic to AVFilterBuffer.
705 2010-07-17 - r24278 - lavf 52.74.0 - url_fskip()
706 Make url_fskip() return an int error code instead of void.
708 2010-07-11 - r24199 - lavc 52.83.0
709 Add AVCodecContext.lpc_type and AVCodecContext.lpc_passes fields.
711 Deprecate AVCodecContext.use_lpc.
713 2010-07-11 - r24185 - lavc 52.82.0 - avsubtitle_free()
714 Add a function for free the contents of a AVSubtitle generated by
715 avcodec_decode_subtitle.
717 2010-07-11 - r24174 - lavu 50.22.0 - bswap.h and intreadwrite.h
718 Make the bswap.h and intreadwrite.h API public.
720 2010-07-08 - r24101 - lavu 50.21.0 - pixdesc.h
721 Rename read/write_line() to av_read/write_image_line().
723 2010-07-07 - r24091 - lavfi 1.21.0 - avfilter_copy_picref_props()
724 Add avfilter_copy_picref_props().
726 2010-07-03 - r24021 - lavc 52.79.0
727 Add FF_COMPLIANCE_UNOFFICIAL and change all instances of
728 FF_COMPLIANCE_INOFFICIAL to use FF_COMPLIANCE_UNOFFICIAL.
730 2010-07-02 - r23985 - lavu 50.20.0 - lfg.h
731 Export av_lfg_init(), av_lfg_get(), av_mlfg_get(), and av_bmg_get() through
734 2010-06-28 - r23835 - lavfi 1.20.1 - av_parse_color()
735 Extend av_parse_color() syntax, make it accept an alpha value specifier and
736 set the alpha value to 255 by default.
738 2010-06-22 - r23706 - lavf 52.71.0 - URLProtocol.priv_data_size, priv_data_class
739 Add priv_data_size and priv_data_class to URLProtocol.
741 2010-06-22 - r23704 - lavf 52.70.0 - url_alloc(), url_connect()
742 Add url_alloc() and url_connect().
744 2010-06-22 - r23702 - lavf 52.69.0 - av_register_protocol2()
745 Add av_register_protocol2(), deprecating av_register_protocol().
747 2010-06-09 - r23551 - lavu 50.19.0 - av_compare_mod()
748 Add av_compare_mod() to libavutil/mathematics.h.
750 2010-06-05 - r23485 - lavu 50.18.0 - eval API
751 Make the eval API public.
753 2010-06-04 - r23461 - lavu 50.17.0 - AV_BASE64_SIZE
754 Add AV_BASE64_SIZE() macro.
756 2010-06-02 - r23421 - lavc 52.73.0 - av_get_codec_tag_string()
757 Add av_get_codec_tag_string().
759 2010-06-01 - r31301 - lsws 0.11.0 - convertPalette API
760 Add sws_convertPalette8ToPacked32() and sws_convertPalette8ToPacked24().
762 2010-05-26 - r23334 - lavc 52.72.0 - CODEC_CAP_EXPERIMENTAL
763 Add CODEC_CAP_EXPERIMENTAL flag.
764 NOTE: this was backported to 0.6
766 2010-05-23 - r23255 - lavu 50.16.0 - av_get_random_seed()
767 Add av_get_random_seed().
769 2010-05-18 - r23161 - lavf 52.63.0 - AVFMT_FLAG_RTP_HINT
770 Add AVFMT_FLAG_RTP_HINT as possible value for AVFormatContext.flags.
771 NOTE: this was backported to 0.6
773 2010-05-09 - r23066 - lavfi 1.20.0 - AVFilterPicRef
774 Add interlaced and top_field_first fields to AVFilterPicRef.
776 ------------------------------8<-------------------------------------
777 0.6 branch was cut here
778 ----------------------------->8--------------------------------------
780 2010-05-01 - r23002 - lavf 52.62.0 - probe function
781 Add av_probe_input_format2 to API, it allows ignoring probe
782 results below given score and returns the actual probe score.
784 2010-04-01 - r22806 - lavf 52.61.0 - metadata API
785 Add a flag for av_metadata_set2() to disable overwriting of
788 2010-04-01 - r22753 - lavc 52.66.0
789 Add avcodec_get_edge_width().
791 2010-03-31 - r22750 - lavc 52.65.0
792 Add avcodec_copy_context().
794 2010-03-31 - r22748 - lavf 52.60.0 - av_match_ext()
795 Make av_match_ext() public.
797 2010-03-31 - r22736 - lavu 50.14.0 - AVMediaType
798 Move AVMediaType enum from libavcodec to libavutil.
800 2010-03-31 - r22735 - lavc 52.64.0 - AVMediaType
801 Define AVMediaType enum, and use it instead of enum CodecType, which
802 is deprecated and will be dropped at the next major bump.
804 2010-03-25 - r22684 - lavu 50.13.0 - av_strerror()
805 Implement av_strerror().
807 2010-03-23 - r22649 - lavc 52.60.0 - av_dct_init()
808 Support DCT-I and DST-I.
810 2010-03-15 - r22540 - lavf 52.56.0 - AVFormatContext.start_time_realtime
811 Add AVFormatContext.start_time_realtime field.
813 2010-03-13 - r22506 - lavfi 1.18.0 - AVFilterPicRef.pos
814 Add AVFilterPicRef.pos field.
816 2010-03-13 - r22501 - lavu 50.12.0 - error.h
817 Move error code definitions from libavcodec/avcodec.h to
818 the new public header libavutil/error.h.
820 2010-03-07 - r22291 - lavc 52.56.0 - avfft.h
821 Add public FFT interface.
823 2010-03-06 - r22251 - lavu 50.11.0 - av_stristr()
826 2010-03-03 - r22174 - lavu 50.10.0 - av_tree_enumerate()
827 Add av_tree_enumerate().
829 2010-02-07 - r21673 - lavu 50.9.0 - av_compare_ts()
832 2010-02-05 - r30513 - lsws 0.10.0 - sws_getCoefficients()
833 Add sws_getCoefficients().
835 2010-02-01 - r21587 - lavf 52.50.0 - metadata API
836 Add a list of generic tag names, change 'author' -> 'artist',
839 2010-01-30 - r21545 - lavu 50.8.0 - av_get_pix_fmt()
840 Add av_get_pix_fmt().
842 2010-01-21 - r30381 - lsws 0.9.0 - sws_scale()
843 Change constness attributes of sws_scale() parameters.
845 2010-01-10 - r21121 - lavfi 1.15.0 - avfilter_graph_config_links()
846 Add a log_ctx parameter to avfilter_graph_config_links().
848 2010-01-07 - r30236 - lsws 0.8.0 - sws_isSupported{In,Out}put()
849 Add sws_isSupportedInput() and sws_isSupportedOutput() functions.
851 2010-01-06 - r21035 - lavfi 1.14.0 - avfilter_add_colorspace()
852 Change the avfilter_add_colorspace() signature, make it accept an
853 (AVFilterFormats **) rather than an (AVFilterFormats *) as before.
855 2010-01-03 - r21007 - lavfi 1.13.0 - avfilter_add_colorspace()
856 Add avfilter_add_colorspace().
858 2010-01-02 - r20998 - lavf 52.46.0 - av_match_ext()
859 Add av_match_ext(), it should be used in place of match_ext().
861 2010-01-01 - r20991 - lavf 52.45.0 - av_guess_format()
862 Add av_guess_format(), it should be used in place of guess_format().
864 2009-12-13 - r20834 - lavf 52.43.0 - metadata API
865 Add av_metadata_set2(), AV_METADATA_DONT_STRDUP_KEY and
866 AV_METADATA_DONT_STRDUP_VAL.
868 2009-12-13 - r20829 - lavu 50.7.0 - avstring.h API
871 2009-12-13 - r20826 - lavc 52.42.0 - AVStream
874 2009-12-12 - r20808 - lavu 50.6.0 - av_bmg_next()
875 Introduce the av_bmg_next() function.
877 2009-12-05 - r20734 - lavfi 1.12.0 - avfilter_draw_slice()
878 Add a slice_dir parameter to avfilter_draw_slice().
880 2009-11-26 - r20611 - lavfi 1.11.0 - AVFilter
881 Remove the next field from AVFilter, this is not anymore required.
883 2009-11-25 - r20607 - lavfi 1.10.0 - avfilter_next()
884 Introduce the avfilter_next() function.
886 2009-11-25 - r20605 - lavfi 1.9.0 - avfilter_register()
887 Change the signature of avfilter_register() to make it return an
888 int. This is required since now the registration operation may fail.
890 2009-11-25 - r20603 - lavu 50.5.0 - pixdesc.h API
891 Make the pixdesc.h API public.
893 2009-10-27 - r20385 - lavfi 1.5.0 - AVFilter.next
894 Add a next field to AVFilter, this is used for simplifying the
895 registration and management of the registered filters.
897 2009-10-23 - r20356 - lavfi 1.4.1 - AVFilter.description
898 Add a description field to AVFilter.
900 2009-10-19 - r20302 - lavfi 1.3.0 - avfilter_make_format_list()
901 Change the interface of avfilter_make_format_list() from
902 avfilter_make_format_list(int n, ...) to
903 avfilter_make_format_list(enum PixelFormat *pix_fmts).
905 2009-10-18 - r20272 - lavfi 1.0.0 - avfilter_get_video_buffer()
906 Make avfilter_get_video_buffer() recursive and add the w and h
909 2009-10-07 - r20189 - lavfi 0.5.1 - AVFilterPic
910 Add w and h fields to AVFilterPic.
912 2009-06-22 - r19250 - lavf 52.34.1 - AVFormatContext.packet_size
913 This is now an unsigned int instead of a signed int.
915 2009-06-19 - r19222 - lavc 52.32.0 - AVSubtitle.pts
916 Add a pts field to AVSubtitle which gives the subtitle packet pts
917 in AV_TIME_BASE. Some subtitle de-/encoders (e.g. XSUB) will
918 not work right without this.
920 2009-06-03 - r19078 - lavc 52.30.2 - AV_PKT_FLAG_KEY
921 PKT_FLAG_KEY has been deprecated and will be dropped at the next
922 major version. Use AV_PKT_FLAG_KEY instead.
924 2009-06-01 - r19025 - lavc 52.30.0 - av_lockmgr_register()
925 av_lockmgr_register() can be used to register a callback function
926 that lavc (and in the future, libraries that depend on lavc) can use
927 to implement mutexes. The application should provide a callback function
928 that implements the AV_LOCK_* operations described in avcodec.h.
929 When the lock manager is registered, FFmpeg is guaranteed to behave
930 correctly in a multi-threaded application.
932 2009-04-30 - r18719 - lavc 52.28.0 - av_free_packet()
933 av_free_packet() is no longer an inline function. It is now exported.
935 2009-04-11 - r18431 - lavc 52.25.0 - deprecate av_destruct_packet_nofree()
936 Please use NULL instead. This has been supported since r16506
937 (lavf > 52.23.1, lavc > 52.10.0).
939 2009-04-07 - r18351 - lavc 52.23.0 - avcodec_decode_video/audio/subtitle
940 The old decoding functions are deprecated, all new code should use the
941 new functions avcodec_decode_video2(), avcodec_decode_audio3() and
942 avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt
943 argument instead of a const uint8_t *buf / int buf_size pair.
945 2009-04-03 - r18321 - lavu 50.3.0 - av_fifo_space()
946 Introduce the av_fifo_space() function.
948 2009-04-02 - r18317 - lavc 52.23.0 - AVPacket
949 Move AVPacket declaration from libavformat/avformat.h to
950 libavcodec/avcodec.h.
952 2009-03-22 - r18163 - lavu 50.2.0 - RGB32 pixel formats
953 Convert the pixel formats PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR,
954 PIX_FMT_BGRA, which were defined as macros, into enum PixelFormat values.
955 Conversely PIX_FMT_RGB32, PIX_FMT_RGB32_1, PIX_FMT_BGR32 and
956 PIX_FMT_BGR32_1 are now macros.
957 avcodec_get_pix_fmt() now recognizes the "rgb32" and "bgr32" aliases.
958 Re-sort the enum PixelFormat list accordingly.
959 This change breaks API/ABI backward compatibility.
961 2009-03-22 - r18133 - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants
962 Add the enum PixelFormat values:
963 PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,
964 PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.
966 2009-03-21 - r18116 - lavu 50.0.0 - av_random*
967 The Mersenne Twister PRNG implemented through the av_random* functions
968 was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions
971 2009-03-08 - r17869 - lavu 50.0.0 - AVFifoBuffer
972 av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped
973 and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write
974 and av_fifo_realloc2.
975 In addition, the order of the function arguments of av_fifo_generic_read
976 was changed to match av_fifo_generic_write.
977 The AVFifoBuffer/struct AVFifoBuffer may only be used in an opaque way by
978 applications, they may not use sizeof() or directly access members.
980 2009-03-01 - r17682 - lavf 52.31.0 - Generic metadata API
981 Introduce a new metadata API (see av_metadata_get() and friends).
982 The old API is now deprecated and should not be used anymore. This especially
983 includes the following structure fields:
984 - AVFormatContext.title
985 - AVFormatContext.author
986 - AVFormatContext.copyright
987 - AVFormatContext.comment
988 - AVFormatContext.album
989 - AVFormatContext.year
990 - AVFormatContext.track
991 - AVFormatContext.genre
994 - AVProgram.provider_name