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: 2011-04-18
14 API changes, most recent first:
16 2011-06-19 - xxxxxxx - lavfi 2.23.0 - avfilter.h
17 Add layout negotiation fields and helper functions.
19 In particular, add in_chlayouts and out_chlayouts to AVFilterLink,
21 avfilter_set_common_sample_formats()
22 avfilter_set_common_channel_layouts()
23 avfilter_all_channel_layouts()
25 2011-06-19 - xxxxxxx - lavfi 2.22.0 - AVFilterFormats
26 Change type of AVFilterFormats.formats from int * to int64_t *,
27 and update formats handling API accordingly.
29 avfilter_make_format_list() still takes a int32_t array and converts
30 it to int64_t. A new function, avfilter_make_format64_list(), that
31 takes int64_t arrays has been added.
33 2011-06-19 - xxxxxxx - lavfi 2.21.0 - vsink_buffer.h
34 Add video sink buffer and vsink_buffer.h public header.
36 2011-06-12 - xxxxxxx - lavfi 2.18.0 - avcodec.h
37 Add avfilter_get_video_buffer_ref_from_frame() function in
38 libavfilter/avcodec.h.
40 2011-06-12 - xxxxxxx - lavfi 2.17.0 - avfiltergraph.h
41 Add avfilter_inout_alloc() and avfilter_inout_free() functions.
43 2011-06-12 - xxxxxxx - lavfi 2.16.0 - avfilter_graph_parse()
44 Change avfilter_graph_parse() signature.
46 2011-06-xx - xxxxxxx - lavf 53.2.0 - avformat.h
47 Add avformat_open_input and avformat_write_header().
48 Deprecate av_open_input_stream, av_open_input_file,
49 AVFormatParameters and av_write_header.
51 2011-06-xx - xxxxxxx - lavu 51.7.0 - opt.h
52 Add av_opt_set_dict() and av_opt_find().
53 Deprecate av_find_opt().
54 Add AV_DICT_APPEND flag.
56 2011-06-xx - xxxxxxx - lavu 51.6.0 - opt.h
57 Add av_opt_flag_is_set().
59 2011-06-10 - c381960 - lavfi 2.15.0 - avfilter_get_audio_buffer_ref_from_arrays
60 Add avfilter_get_audio_buffer_ref_from_arrays() to avfilter.h.
62 2011-06-09 - d9f80ea - lavu 51.8.0 - AVMetadata
63 Move AVMetadata from lavf to lavu and rename it to
64 AVDictionary -- new installed header dict.h.
65 All av_metadata_* functions renamed to av_dict_*.
67 2011-06-07 - a6703fa - lavu 51.8.0 - av_get_bytes_per_sample()
68 Add av_get_bytes_per_sample() in libavutil/samplefmt.h.
69 Deprecate av_get_bits_per_sample_fmt().
71 2011-06-xx - b39b062 - lavu 51.8.0 - opt.h
72 Add av_opt_free convenience function.
74 2011-06-06 - 95a0242 - lavfi 2.14.0 - AVFilterBufferRefAudioProps
75 Remove AVFilterBufferRefAudioProps.size, and use nb_samples in
76 avfilter_get_audio_buffer() and avfilter_default_get_audio_buffer() in
79 2011-06-06 - 0bc2cca - lavu 51.6.0 - av_samples_alloc()
80 Switch nb_channels and nb_samples parameters order in
83 2011-06-06 - e1c7414 - lavu 51.5.0 - av_samples_*
84 Change the data layout created by av_samples_fill_arrays() and
87 2011-06-06 - 27bcf55 - lavfi 2.13.0 - vsrc_buffer.h
88 Make av_vsrc_buffer_add_video_buffer_ref() accepts an additional
89 flags parameter in input.
91 2011-06-03 - e977ca2 - lavfi 2.12.0 - avfilter_link_free()
92 Add avfilter_link_free() function.
94 2011-06-02 - 5ad38d9 - lavu 51.4.0 - av_force_cpu_flags()
95 Add av_cpu_flags() in libavutil/cpu.h.
97 2011-05-28 - e71f260 - lavu 51.3.0 - pixdesc.h
98 Add av_get_pix_fmt_name() in libavutil/pixdesc.h, and deprecate
99 avcodec_get_pix_fmt_name() in libavcodec/avcodec.h in its favor.
101 2011-05-25 - 30315a8 - lavf 53.3.0 - avformat.h
102 Add fps_probe_size to AVFormatContext.
104 2011-05-22 - 5ecdfd0 - lavf 53.2.0 - avformat.h
105 Introduce avformat_alloc_output_context2() and deprecate
106 avformat_alloc_output_context().
108 2011-05-22 - 83db719 - lavfi 2.10.0 - vsrc_buffer.h
109 Make libavfilter/vsrc_buffer.h public.
111 2011-05-19 - c000a9f - lavfi 2.8.0 - avcodec.h
112 Add av_vsrc_buffer_add_frame() to libavfilter/avcodec.h.
114 2011-05-14 - 9fdf772 - lavfi 2.6.0 - avcodec.h
115 Add avfilter_get_video_buffer_ref_from_frame() to libavfilter/avcodec.h.
117 2011-05-18 - 64150ff - lavc 53.7.0 - AVCodecContext.request_sample_fmt
118 Add request_sample_fmt field to AVCodecContext.
120 2011-05-10 - 188dea1 - lavc 53.6.0 - avcodec.h
121 Deprecate AVLPCType and the following fields in
122 AVCodecContext: lpc_coeff_precision, prediction_order_method,
123 min_partition_order, max_partition_order, lpc_type, lpc_passes.
124 Corresponding FLAC encoder options should be used instead.
126 2011-05-07 - 9fdf772 - lavfi 2.5.0 - avcodec.h
127 Add libavfilter/avcodec.h header and avfilter_copy_frame_props()
130 2011-05-07 - 18ded93 - lavc 53.5.0 - AVFrame
131 Add format field to AVFrame.
133 2011-05-07 - 22333a6 - lavc 53.4.0 - AVFrame
134 Add width and height fields to AVFrame.
136 2011-05-01 - 35fe66a - lavfi 2.4.0 - avfilter.h
137 Rename AVFilterBufferRefVideoProps.pixel_aspect to
140 2011-05-01 - 77e9dee - lavc 53.3.0 - AVFrame
141 Add a sample_aspect_ratio field to AVFrame.
143 2011-05-01 - 1ba5727 - lavc 53.2.0 - AVFrame
144 Add a pkt_pos field to AVFrame.
146 2011-04-29 - 35ceaa7 - lavu 51.2.0 - mem.h
147 Add av_dynarray_add function for adding
148 an element to a dynamic array.
150 2011-04-26 - bebe72f - lavu 51.1.0 - avutil.h
151 Add AVPictureType enum and av_get_picture_type_char(), deprecate
152 FF_*_TYPE defines and av_get_pict_type_char() defined in
153 libavcodec/avcodec.h.
155 2011-04-26 - 10d3940 - lavfi 2.3.0 - avfilter.h
156 Add pict_type and key_frame fields to AVFilterBufferRefVideo.
158 2011-04-26 - 7a11c82 - lavfi 2.2.0 - vsrc_buffer
159 Add sample_aspect_ratio fields to vsrc_buffer arguments
161 2011-04-21 - 94f7451 - lavc 53.1.0 - avcodec.h
162 Add CODEC_CAP_SLICE_THREADS for codecs supporting sliced threading.
164 2011-04-15 - lavc 52.120.0 - avcodec.h
165 AVPacket structure got additional members for passing side information:
166 4de339e introduce side information for AVPacket
167 2d8591c make containers pass palette change in AVPacket
169 2011-04-12 - lavf 52.107.0 - avio.h
170 Avio cleanup, part II - deprecate the entire URLContext API:
171 175389c add avio_check as a replacement for url_exist
172 ff1ec0c add avio_pause and avio_seek_time as replacements
173 for _av_url_read_fseek/fpause
174 cdc6a87 deprecate av_protocol_next(), avio_enum_protocols
175 should be used instead.
176 80c6e23 rename url_set_interrupt_cb->avio_set_interrupt_cb.
177 f87b1b3 rename open flags: URL_* -> AVIO_*
178 f8270bb add avio_enum_protocols.
179 5593f03 deprecate URLProtocol.
180 c486dad deprecate URLContext.
181 026e175 deprecate the typedef for URLInterruptCB
182 8e76a19 deprecate av_register_protocol2.
183 b840484 deprecate URL_PROTOCOL_FLAG_NESTED_SCHEME
184 1305d93 deprecate av_url_read_seek
185 fa104e1 deprecate av_url_read_pause
186 727c7aa deprecate url_get_filename().
187 5958df3 deprecate url_max_packet_size().
188 1869ea0 deprecate url_get_file_handle().
189 32a97d4 deprecate url_filesize().
190 e52a914 deprecate url_close().
191 58a48c6 deprecate url_seek().
192 925e908 deprecate url_write().
193 dce3756 deprecate url_read_complete().
194 bc371ac deprecate url_read().
195 0589da0 deprecate url_open().
196 62eaaea deprecate url_connect.
197 5652bb9 deprecate url_alloc.
198 333e894 deprecate url_open_protocol
199 e230705 deprecate url_poll and URLPollEntry
201 2011-04-08 - lavf 52.106.0 - avformat.h
202 Minor avformat.h cleanup:
203 a9bf9d8 deprecate av_guess_image2_codec
204 c3675df rename avf_sdp_create->av_sdp_create
206 2011-04-03 - lavf 52.105.0 - avio.h
207 Large-scale renaming/deprecating of AVIOContext-related functions:
208 724f6a0 deprecate url_fdopen
209 403ee83 deprecate url_open_dyn_packet_buf
210 6dc7d80 rename url_close_dyn_buf -> avio_close_dyn_buf
211 b92c545 rename url_open_dyn_buf -> avio_open_dyn_buf
212 8978fed introduce an AVIOContext.seekable field as a replacement for
213 AVIOContext.is_streamed and url_is_streamed()
214 b64030f deprecate get_checksum()
215 4c4427a deprecate init_checksum()
216 4ec153b deprecate udp_set_remote_url/get_local_port
217 933e90a deprecate av_url_read_fseek/fpause
218 8d9769a deprecate url_fileno
219 b7f2fdd rename put_flush_packet -> avio_flush
220 35f1023 deprecate url_close_buf
221 83fddae deprecate url_open_buf
222 d9d86e0 rename url_fprintf -> avio_printf
223 59f65d9 deprecate url_setbufsize
224 3e68b3b deprecate url_ferror
225 66e5b1d deprecate url_feof
226 e8bb2e2 deprecate url_fget_max_packet_size
227 76aa876 rename url_fsize -> avio_size
228 e519753 deprecate url_fgetc
229 655e45e deprecate url_fgets
230 a2704c9 rename url_ftell -> avio_tell
231 e16ead0 deprecate get_strz() in favor of avio_get_str
232 0300db8,2af07d3 rename url_fskip -> avio_skip
233 6b4aa5d rename url_fseek -> avio_seek
234 61840b4 deprecate put_tag
235 22a3212 rename url_fopen/fclose -> avio_open/close.
236 0ac8e2b deprecate put_nbyte
237 77eb550 rename put_byte -> avio_w8
238 put_[b/l]e<type> -> avio_w[b/l]<type>
239 put_buffer -> avio_write
240 b7effd4 rename get_byte -> avio_r8,
241 get_[b/l]e<type> -> avio_r[b/l]<type>
242 get_buffer -> avio_read
243 b3db9ce deprecate get_partial_buffer
244 8d9ac96 rename av_alloc_put_byte -> avio_alloc_context
246 2011-03-25 - 34b47d7 - lavc 52.115.0 - AVCodecContext.audio_service_type
247 Add audio_service_type field to AVCodecContext.
249 2011-03-17 - e309fdc - lavu 50.40.0 - pixfmt.h
250 Add PIX_FMT_BGR48LE and PIX_FMT_BGR48BE pixel formats
252 2011-03-02 - 863c471 - lavf 52.103.0 - av_pkt_dump2, av_pkt_dump_log2
253 Add new functions av_pkt_dump2, av_pkt_dump_log2 that uses the
254 source stream timebase for outputting timestamps. Deprecate
255 av_pkt_dump and av_pkt_dump_log.
257 2011-02-20 - e731b8d - lavf 52.102.0 - avio.h
258 * e731b8d - rename init_put_byte() to ffio_init_context(), deprecating the
259 original, and move it to a private header so it is no longer
260 part of our public API. Instead, use av_alloc_put_byte().
261 * ae628ec - rename ByteIOContext to AVIOContext.
263 2011-02-16 - 09d171b - lavf 52.101.0 - avformat.h
264 lavu 52.39.0 - parseutils.h
265 * 610219a - Add av_ prefix to dump_format().
266 * f6c7375 - Replace parse_date() in lavf with av_parse_time() in lavu.
267 * ab0287f - Move find_info_tag from lavf to lavu and add av_prefix to it.
269 2011-02-15 - lavu 52.38.0 - merge libavcore
270 libavcore is merged back completely into libavutil
272 2011-02-10 - 55bad0c - lavc 52.113.0 - vbv_delay
273 Add vbv_delay field to AVCodecContext
275 2011-02-14 - 24a83bd - lavf 52.100.0 - AV_DISPOSITION_CLEAN_EFFECTS
276 Add AV_DISPOSITION_CLEAN_EFFECTS disposition flag.
278 2011-02-14 - 910b5b8 - lavfi 1.76.0 - AVFilterLink sample_aspect_ratio
279 Add sample_aspect_ratio field to AVFilterLink.
281 2011-02-10 - 12c14cd - lavf 52.99.0 - AVStream.disposition
282 Add AV_DISPOSITION_HEARING_IMPAIRED and AV_DISPOSITION_VISUAL_IMPAIRED.
284 2011-02-09 - 5592734 - lavc 52.112.0 - avcodec_thread_init()
285 Deprecate avcodec_thread_init()/avcodec_thread_free() use; instead
286 set thread_count before calling avcodec_open.
288 2011-02-09 - 778b08a - lavc 52.111.0 - threading API
289 Add CODEC_CAP_FRAME_THREADS with new restrictions on get_buffer()/
290 release_buffer()/draw_horiz_band() callbacks for appropriate codecs.
291 Add thread_type and active_thread_type fields to AVCodecContext.
293 2011-02-08 - 3940caa - lavf 52.98.0 - av_probe_input_buffer
294 Add av_probe_input_buffer() to avformat.h for probing format from a
297 2011-02-06 - fe174fc - lavf 52.97.0 - avio.h
298 Add flag for non-blocking protocols: URL_FLAG_NONBLOCK
300 2011-02-04 - f124b08 - lavf 52.96.0 - avformat_free_context()
301 Add avformat_free_context() in avformat.h.
303 2011-02-03 - f5b82f4 - lavc 52.109.0 - add CODEC_ID_PRORES
304 Add CODEC_ID_PRORES to avcodec.h.
306 2011-02-03 - fe9a3fb - lavc 52.109.0 - H.264 profile defines
307 Add defines for H.264 * Constrained Baseline and Intra profiles
309 2011-02-02 - lavf 52.95.0
310 * 50196a9 - add a new installed header version.h.
311 * 4efd5cf, dccbd97, 93b78d1 - add several variants of public
312 avio_{put,get}_str* functions. Deprecate corresponding semi-public
315 2011-02-02 - dfd2a00 - lavu 50.37.0 - log.h
318 2011-01-31 - 7b3ea55 - lavfi 1.76.0 - vsrc_buffer
319 Add sample_aspect_ratio fields to vsrc_buffer arguments
321 2011-01-31 - 910b5b8 - lavfi 1.75.0 - AVFilterLink sample_aspect_ratio
322 Add sample_aspect_ratio field to AVFilterLink.
324 2011-01-15 - r26374 - lavfi 1.74.0 - AVFilterBufferRefAudioProps
325 Rename AVFilterBufferRefAudioProps.samples_nb to nb_samples.
327 2011-01-14 - r26330 - lavf 52.93.0 - av_metadata_copy()
328 Add av_metadata_copy() in avformat.h.
330 2011-01-07 - r26262 - lavc 52.107.0 - deprecate reordered_opaque
331 Deprecate reordered_opaque in favor of pkt_pts/dts.
333 2011-01-07 - r26261 - lavc 52.106.0 - pkt_dts
334 Add pkt_dts to AVFrame, this will in the future allow multithreading decoders
337 2011-01-07 - r26260 - lavc 52.105.0 - pkt_pts
338 Add pkt_pts to AVFrame.
340 2011-01-07 - r26259 - lavc 52.104.0 - av_get_profile_name()
341 Add av_get_profile_name to libavcodec/avcodec.h.
343 2010-12-27 - r26108 - lavfi 1.71.0 - AV_PERM_NEG_LINESIZES
344 Add AV_PERM_NEG_LINESIZES in avfilter.h.
346 2010-12-27 - r26104 - lavf 52.91.0 - av_find_best_stream()
347 Add av_find_best_stream to libavformat/avformat.h.
349 2010-12-27 - r26103 - lavf 52.90.0
350 Add AVFMT_NOSTREAMS flag for formats with no streams,
351 like e.g. text metadata.
353 2010-12-22 - r26073 - lavu 50.36.0 - file.h
354 Add functions av_file_map() and av_file_unmap() in file.h.
356 2010-12-19 - r26056 - lavu 50.35.0 - error.h
357 Add "not found" error codes:
358 AVERROR_DEMUXER_NOT_FOUND
359 AVERROR_MUXER_NOT_FOUND
360 AVERROR_DECODER_NOT_FOUND
361 AVERROR_ENCODER_NOT_FOUND
362 AVERROR_PROTOCOL_NOT_FOUND
363 AVERROR_FILTER_NOT_FOUND
364 AVERROR_BSF_NOT_FOUND
365 AVERROR_STREAM_NOT_FOUND
367 2010-12-09 - r25923 - lavcore 0.16.0 - avcore.h
368 Move AV_NOPTS_VALUE, AV_TIME_BASE, AV_TIME_BASE_Q symbols from
369 avcodec.h to avcore.h.
371 2010-12-04 - r25886 - lavc 52.98.0 - CODEC_CAP_NEG_LINESIZES
372 Add CODEC_CAP_NEG_LINESIZES codec capability flag in avcodec.h.
374 2010-12-04 - r25879 - lavu 50.34.0 - av_get_pix_fmt_string()
375 Deprecate avcodec_pix_fmt_string() in favor of
376 pixdesc.h/av_get_pix_fmt_string().
378 2010-12-04 - r25878 - lavcore 0.15.0 - av_image_alloc()
379 Add av_image_alloc() to libavcore/imgutils.h.
381 2010-12-02 - r25862 - lavfi 1.67.0 - avfilter_graph_create_filter()
382 Add function avfilter_graph_create_filter() in avfiltergraph.h.
384 2010-11-25 - r25826 - lavfi 1.65.0 - avfilter_get_video_buffer_ref_from_arrays()
385 Add function avfilter_get_video_buffer_ref_from_arrays() in
388 2010-11-21 - r25787 - lavcore 0.14.0 - audioconvert.h
389 Add a public audio channel API in audioconvert.h, and deprecate the
390 corresponding functions in libavcodec:
391 avcodec_get_channel_name()
392 avcodec_get_channel_layout()
393 avcodec_get_channel_layout_string()
394 avcodec_channel_layout_num_channels()
395 and the CH_* macros defined in libavcodec/avcodec.h.
397 2010-11-21 - r25777 - lavf 52.85.0 - avformat.h
398 Add av_append_packet().
400 2010-11-21 - r25776 - lavc 52.97.0 - avcodec.h
401 Add av_grow_packet().
403 2010-11-17 - r25761 - lavcore 0.13.0 - parseutils.h
404 Add av_parse_color() declared in libavcore/parseutils.h.
406 2010-11-13 - r25745 - lavc 52.95.0 - AVCodecContext
407 Add AVCodecContext.subtitle_header and AVCodecContext.subtitle_header_size
410 2010-11-13 - r25740 - lavfi 1.62.0 - avfiltergraph.h
411 Make avfiltergraph.h public.
413 2010-11-13 - r25737 - lavfi 1.61.0 - avfiltergraph.h
414 Remove declarations from avfiltergraph.h for the functions:
415 avfilter_graph_check_validity()
416 avfilter_graph_config_links()
417 avfilter_graph_config_formats()
418 which are now internal.
419 Use avfilter_graph_config() instead.
421 2010-11-08 - r25708 - lavu 50.33.0 - eval.h
423 av_parse_and_eval_expr(),
427 in favor of the functions:
428 av_expr_parse_and_eval(),
433 2010-11-08 - r25707 - lavfi 1.59.0 - avfilter_free()
434 Rename avfilter_destroy() to avfilter_free().
435 This change breaks libavfilter API/ABI.
437 2010-11-07 - r25705 - lavfi 1.58.0 - avfiltergraph.h
438 Remove graphparser.h header, move AVFilterInOut and
439 avfilter_graph_parse() declarations to libavfilter/avfiltergraph.h.
441 2010-11-07 - r25700 - lavfi 1.57.0 - AVFilterInOut
442 Rename field AVFilterInOut.filter to AVFilterInOut.filter_ctx.
443 This change breaks libavfilter API.
445 2010-11-04 - r25674 - lavfi 1.56.0 - avfilter_graph_free()
446 Rename avfilter_graph_destroy() to avfilter_graph_free().
447 This change breaks libavfilter API/ABI.
449 2010-11-04 - r25673 - lavfi 1.55.0 - avfilter_graph_alloc()
450 Add avfilter_graph_alloc() to libavfilter/avfiltergraph.h.
452 2010-11-02 - r25654 - lavcore 0.12.0 - av_get_bits_per_sample_fmt()
453 Add av_get_bits_per_sample_fmt() to libavcore/samplefmt.h and
454 deprecate av_get_bits_per_sample_format().
456 2010-11-02 - r25653 - lavcore 0.11.0 - samplefmt.h
457 Add sample format functions in libavcore/samplefmt.h:
458 av_get_sample_fmt_name(),
460 av_get_sample_fmt_string(),
461 and deprecate the corresponding libavcodec/audioconvert.h functions:
462 avcodec_get_sample_fmt_name(),
463 avcodec_get_sample_fmt(),
464 avcodec_sample_fmt_string().
466 2010-11-02 - r25652 - lavcore 0.10.0 - samplefmt.h
467 Define enum AVSampleFormat in libavcore/samplefmt.h, deprecate enum
470 2010-10-16 - r25502 - lavfi 1.52.0 - avfilter_graph_config()
471 Add the function avfilter_graph_config() in avfiltergraph.h.
473 2010-10-15 - r25493 - lavf 52.83.0 - metadata API
474 Change demuxers to export metadata in generic format and
475 muxers to accept generic format. Deprecate the public
478 2010-10-10 - r25441 - lavfi 1.49.0 - AVFilterLink.time_base
479 Add time_base field to AVFilterLink.
481 2010-09-27 - r25236 - lavu 50.31.0 - av_set_options_string()
482 Move av_set_options_string() from libavfilter/parseutils.h to
485 2010-09-27 - r25227 - lavfi 1.47.0 - AVFilterLink
486 Make the AVFilterLink fields srcpad and dstpad store the pointers to
487 the source and destination pads, rather than their indexes.
489 2010-09-27 - r25225 - lavu 50.30.0 - av_get_token()
490 Move av_get_token() from libavfilter/parseutils.h to
491 libavutil/avstring.h.
493 2010-09-26 - r32368 - lsws 0.12.0 - swscale.h
494 Add the functions sws_alloc_context() and sws_init_context().
496 2010-09-26 - r25210 - lavu 50.29.0 - opt.h
497 Move libavcodec/opt.h to libavutil/opt.h.
499 2010-09-24 - r25174 - lavu 50.28.0 - av_log_set_flags()
500 Default of av_log() changed due to many problems to the old no repeat
501 detection. Read the docs of AV_LOG_SKIP_REPEATED in log.h before
502 enabling it for your app!.
504 2010-09-24 - r25167 - lavc 52.90.0 - av_opt_show2()
505 Deprecate av_opt_show() in favor or av_opt_show2().
507 2010-09-14 - r25120 - lavu 50.27.0 - av_popcount()
508 Add av_popcount() to libavutil/common.h.
510 2010-09-08 - r25076 - lavu 50.26.0 - av_get_cpu_flags()
511 Add av_get_cpu_flags().
513 2010-09-07 - r25067 - lavcore 0.9.0 - av_image_copy()
516 2010-09-07 - r25064 - lavcore 0.8.0 - av_image_copy_plane()
517 Add av_image_copy_plane().
519 2010-09-07 - r25057 - lavcore 0.7.0 - imgutils.h
520 Adopt hierarchical scheme for the imgutils.h function names,
521 deprecate the old names.
523 2010-09-04 - r25040 - lavu 50.25.0 - AV_CPU_FLAG_*
524 Deprecate the FF_MM_* flags defined in libavcodec/avcodec.h in favor
525 of the AV_CPU_FLAG_* flags defined in libavutil/cpu.h.
527 2010-08-26 - r24936 - lavc 52.87.0 - avcodec_get_channel_layout()
528 Add avcodec_get_channel_layout() in audioconvert.h.
530 2010-08-20 - r24851 - lavcore 0.6.0 - av_fill_image_max_pixsteps()
531 Rename av_fill_image_max_pixstep() to av_fill_image_max_pixsteps().
533 2010-08-18 - r24827 - lavcore 0.5.0 - av_fill_image_max_pixstep()
534 Add av_fill_image_max_pixstep() in imgutils.h.
536 2010-08-17 - r24814 - lavu 50.24.0 - AV_NE()
539 2010-08-17 - r24811 - lavfi 1.36.0 - audio framework
540 Implement AVFilterBufferRefAudioProps struct for audio properties,
541 get_audio_buffer(), filter_samples() functions and related changes.
543 2010-08-12 - r24787 - lavcore 0.4.0 - av_get_image_linesize()
544 Add av_get_image_linesize() in imgutils.h.
546 2010-08-11 - r24773 - lavfi 1.34.0 - AVFilterBufferRef
547 Resize data and linesize arrays in AVFilterBufferRef to 8.
549 This change breaks libavfilter API/ABI.
551 2010-08-11 - r24768 - lavc 52.85.0 - av_picture_data_copy()
552 Add av_picture_data_copy in avcodec.h.
554 2010-08-11 - r24765 - lavfi 1.33.0 - avfilter_open()
555 Change avfilter_open() signature:
556 AVFilterContext *avfilter_open(AVFilter *filter, const char *inst_name) ->
557 int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);
559 This change breaks libavfilter API/ABI.
561 2010-08-11 - r24763 - lavfi 1.32.0 - AVFilterBufferRef
562 Add a type field to AVFilterBufferRef, and move video specific
563 properties to AVFilterBufferRefVideoProps.
565 This change breaks libavfilter API/ABI.
567 2010-08-07 - r24732 - lavfi 1.31.0 - AVFilterLink
568 Rename AVFilterLink fields:
569 AVFilterLink.srcpic -> AVFilterLink.src_buf
570 AVFilterLink.cur_pic -> AVFilterLink.cur_buf
571 AVFilterLink.outpic -> AVFilterLink.out_buf
573 2010-08-07 - r24731 - lavfi 1.30.0
574 Rename functions and fields:
575 avfilter_(un)ref_pic -> avfilter_(un)ref_buffer
576 avfilter_copy_picref_props -> avfilter_copy_buffer_ref_props
577 AVFilterBufferRef.pic -> AVFilterBufferRef.buffer
579 2010-08-07 - r24730 - lavfi 1.29.0 - AVFilterBufferRef
580 Rename AVFilterPicRef to AVFilterBufferRef.
582 2010-08-07 - r24728 - lavfi 1.28.0 - AVFilterBuffer
583 Move format field from AVFilterBuffer to AVFilterPicRef.
585 2010-08-06 - r24709 - lavcore 0.3.0 - av_check_image_size()
586 Deprecate avcodec_check_dimensions() in favor of the function
587 av_check_image_size() defined in libavcore/imgutils.h.
589 2010-07-30 - r24592 - lavfi 1.27.0 - AVFilterBuffer
590 Increase size of the arrays AVFilterBuffer.data and
591 AVFilterBuffer.linesize from 4 to 8.
593 This change breaks libavfilter ABI.
595 2010-07-29 - r24583 - lavcore 0.2.0 - imgutils.h
596 Add functions av_fill_image_linesizes() and
597 av_fill_image_pointers(), declared in libavcore/imgutils.h.
599 2010-07-27 - r24518 - lavcore 0.1.0 - parseutils.h
600 Deprecate av_parse_video_frame_size() and av_parse_video_frame_rate()
601 defined in libavcodec in favor of the newly added functions
602 av_parse_video_size() and av_parse_video_rate() declared in
603 libavcore/parseutils.h.
605 2010-07-23 - r24439 - lavu 50.23.0 - mathematics.h
606 Add the M_PHI constant definition.
608 2010-07-22 - r24424 - lavfi 1.26.0 - media format generalization
609 Add a type field to AVFilterLink.
611 Change the field types:
612 enum PixelFormat format -> int format in AVFilterBuffer
613 enum PixelFormat *formats -> int *formats in AVFilterFormats
614 enum PixelFormat *format -> int format in AVFilterLink
616 Change the function signatures:
617 AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts); ->
618 AVFilterFormats *avfilter_make_format_list(const int *fmts);
620 int avfilter_add_colorspace(AVFilterFormats **avff, enum PixelFormat pix_fmt); ->
621 int avfilter_add_format (AVFilterFormats **avff, int fmt);
623 AVFilterFormats *avfilter_all_colorspaces(void); ->
624 AVFilterFormats *avfilter_all_formats (enum AVMediaType type);
626 This change breaks libavfilter API/ABI.
628 2010-07-21 - r24393 - lavcore 0.0.0
631 2010-07-17 - r24291 - lavfi 1.25.0 - AVFilterBuffer
632 Remove w and h fields from AVFilterBuffer.
634 2010-07-17 - r24284 - lavfi 1.24.0 - AVFilterBuffer
635 Rename AVFilterPic to AVFilterBuffer.
637 2010-07-17 - r24278 - lavf 52.74.0 - url_fskip()
638 Make url_fskip() return an int error code instead of void.
640 2010-07-11 - r24199 - lavc 52.83.0
641 Add AVCodecContext.lpc_type and AVCodecContext.lpc_passes fields.
643 Deprecate AVCodecContext.use_lpc.
645 2010-07-11 - r24185 - lavc 52.82.0 - avsubtitle_free()
646 Add a function for free the contents of a AVSubtitle generated by
647 avcodec_decode_subtitle.
649 2010-07-11 - r24174 - lavu 50.22.0 - bswap.h and intreadwrite.h
650 Make the bswap.h and intreadwrite.h API public.
652 2010-07-08 - r24101 - lavu 50.21.0 - pixdesc.h
653 Rename read/write_line() to av_read/write_image_line().
655 2010-07-07 - r24091 - lavfi 1.21.0 - avfilter_copy_picref_props()
656 Add avfilter_copy_picref_props().
658 2010-07-03 - r24021 - lavc 52.79.0
659 Add FF_COMPLIANCE_UNOFFICIAL and change all instances of
660 FF_COMPLIANCE_INOFFICIAL to use FF_COMPLIANCE_UNOFFICIAL.
662 2010-07-02 - r23985 - lavu 50.20.0 - lfg.h
663 Export av_lfg_init(), av_lfg_get(), av_mlfg_get(), and av_bmg_get() through
666 2010-06-28 - r23835 - lavfi 1.20.1 - av_parse_color()
667 Extend av_parse_color() syntax, make it accept an alpha value specifier and
668 set the alpha value to 255 by default.
670 2010-06-22 - r23706 - lavf 52.71.0 - URLProtocol.priv_data_size, priv_data_class
671 Add priv_data_size and priv_data_class to URLProtocol.
673 2010-06-22 - r23704 - lavf 52.70.0 - url_alloc(), url_connect()
674 Add url_alloc() and url_connect().
676 2010-06-22 - r23702 - lavf 52.69.0 - av_register_protocol2()
677 Add av_register_protocol2(), deprecating av_register_protocol().
679 2010-06-09 - r23551 - lavu 50.19.0 - av_compare_mod()
680 Add av_compare_mod() to libavutil/mathematics.h.
682 2010-06-05 - r23485 - lavu 50.18.0 - eval API
683 Make the eval API public.
685 2010-06-04 - r23461 - lavu 50.17.0 - AV_BASE64_SIZE
686 Add AV_BASE64_SIZE() macro.
688 2010-06-02 - r23421 - lavc 52.73.0 - av_get_codec_tag_string()
689 Add av_get_codec_tag_string().
691 2010-06-01 - r31301 - lsws 0.11.0 - convertPalette API
692 Add sws_convertPalette8ToPacked32() and sws_convertPalette8ToPacked24().
694 2010-05-26 - r23334 - lavc 52.72.0 - CODEC_CAP_EXPERIMENTAL
695 Add CODEC_CAP_EXPERIMENTAL flag.
696 NOTE: this was backported to 0.6
698 2010-05-23 - r23255 - lavu 50.16.0 - av_get_random_seed()
699 Add av_get_random_seed().
701 2010-05-18 - r23161 - lavf 52.63.0 - AVFMT_FLAG_RTP_HINT
702 Add AVFMT_FLAG_RTP_HINT as possible value for AVFormatContext.flags.
703 NOTE: this was backported to 0.6
705 2010-05-09 - r23066 - lavfi 1.20.0 - AVFilterPicRef
706 Add interlaced and top_field_first fields to AVFilterPicRef.
708 ------------------------------8<-------------------------------------
709 0.6 branch was cut here
710 ----------------------------->8--------------------------------------
712 2010-05-01 - r23002 - lavf 52.62.0 - probe function
713 Add av_probe_input_format2 to API, it allows ignoring probe
714 results below given score and returns the actual probe score.
716 2010-04-01 - r22806 - lavf 52.61.0 - metadata API
717 Add a flag for av_metadata_set2() to disable overwriting of
720 2010-04-01 - r22753 - lavc 52.66.0
721 Add avcodec_get_edge_width().
723 2010-03-31 - r22750 - lavc 52.65.0
724 Add avcodec_copy_context().
726 2010-03-31 - r22748 - lavf 52.60.0 - av_match_ext()
727 Make av_match_ext() public.
729 2010-03-31 - r22736 - lavu 50.14.0 - AVMediaType
730 Move AVMediaType enum from libavcodec to libavutil.
732 2010-03-31 - r22735 - lavc 52.64.0 - AVMediaType
733 Define AVMediaType enum, and use it instead of enum CodecType, which
734 is deprecated and will be dropped at the next major bump.
736 2010-03-25 - r22684 - lavu 50.13.0 - av_strerror()
737 Implement av_strerror().
739 2010-03-23 - r22649 - lavc 52.60.0 - av_dct_init()
740 Support DCT-I and DST-I.
742 2010-03-15 - r22540 - lavf 52.56.0 - AVFormatContext.start_time_realtime
743 Add AVFormatContext.start_time_realtime field.
745 2010-03-13 - r22506 - lavfi 1.18.0 - AVFilterPicRef.pos
746 Add AVFilterPicRef.pos field.
748 2010-03-13 - r22501 - lavu 50.12.0 - error.h
749 Move error code definitions from libavcodec/avcodec.h to
750 the new public header libavutil/error.h.
752 2010-03-07 - r22291 - lavc 52.56.0 - avfft.h
753 Add public FFT interface.
755 2010-03-06 - r22251 - lavu 50.11.0 - av_stristr()
758 2010-03-03 - r22174 - lavu 50.10.0 - av_tree_enumerate()
759 Add av_tree_enumerate().
761 2010-02-07 - r21673 - lavu 50.9.0 - av_compare_ts()
764 2010-02-05 - r30513 - lsws 0.10.0 - sws_getCoefficients()
765 Add sws_getCoefficients().
767 2010-02-01 - r21587 - lavf 52.50.0 - metadata API
768 Add a list of generic tag names, change 'author' -> 'artist',
771 2010-01-30 - r21545 - lavu 50.8.0 - av_get_pix_fmt()
772 Add av_get_pix_fmt().
774 2010-01-21 - r30381 - lsws 0.9.0 - sws_scale()
775 Change constness attributes of sws_scale() parameters.
777 2010-01-10 - r21121 - lavfi 1.15.0 - avfilter_graph_config_links()
778 Add a log_ctx parameter to avfilter_graph_config_links().
780 2010-01-07 - r30236 - lsws 0.8.0 - sws_isSupported{In,Out}put()
781 Add sws_isSupportedInput() and sws_isSupportedOutput() functions.
783 2010-01-06 - r21035 - lavfi 1.14.0 - avfilter_add_colorspace()
784 Change the avfilter_add_colorspace() signature, make it accept an
785 (AVFilterFormats **) rather than an (AVFilterFormats *) as before.
787 2010-01-03 - r21007 - lavfi 1.13.0 - avfilter_add_colorspace()
788 Add avfilter_add_colorspace().
790 2010-01-02 - r20998 - lavf 52.46.0 - av_match_ext()
791 Add av_match_ext(), it should be used in place of match_ext().
793 2010-01-01 - r20991 - lavf 52.45.0 - av_guess_format()
794 Add av_guess_format(), it should be used in place of guess_format().
796 2009-12-13 - r20834 - lavf 52.43.0 - metadata API
797 Add av_metadata_set2(), AV_METADATA_DONT_STRDUP_KEY and
798 AV_METADATA_DONT_STRDUP_VAL.
800 2009-12-13 - r20829 - lavu 50.7.0 - avstring.h API
803 2009-12-13 - r20826 - lavc 52.42.0 - AVStream
806 2009-12-12 - r20808 - lavu 50.6.0 - av_bmg_next()
807 Introduce the av_bmg_next() function.
809 2009-12-05 - r20734 - lavfi 1.12.0 - avfilter_draw_slice()
810 Add a slice_dir parameter to avfilter_draw_slice().
812 2009-11-26 - r20611 - lavfi 1.11.0 - AVFilter
813 Remove the next field from AVFilter, this is not anymore required.
815 2009-11-25 - r20607 - lavfi 1.10.0 - avfilter_next()
816 Introduce the avfilter_next() function.
818 2009-11-25 - r20605 - lavfi 1.9.0 - avfilter_register()
819 Change the signature of avfilter_register() to make it return an
820 int. This is required since now the registration operation may fail.
822 2009-11-25 - r20603 - lavu 50.5.0 - pixdesc.h API
823 Make the pixdesc.h API public.
825 2009-10-27 - r20385 - lavfi 1.5.0 - AVFilter.next
826 Add a next field to AVFilter, this is used for simplifying the
827 registration and management of the registered filters.
829 2009-10-23 - r20356 - lavfi 1.4.1 - AVFilter.description
830 Add a description field to AVFilter.
832 2009-10-19 - r20302 - lavfi 1.3.0 - avfilter_make_format_list()
833 Change the interface of avfilter_make_format_list() from
834 avfilter_make_format_list(int n, ...) to
835 avfilter_make_format_list(enum PixelFormat *pix_fmts).
837 2009-10-18 - r20272 - lavfi 1.0.0 - avfilter_get_video_buffer()
838 Make avfilter_get_video_buffer() recursive and add the w and h
841 2009-10-07 - r20189 - lavfi 0.5.1 - AVFilterPic
842 Add w and h fields to AVFilterPic.
844 2009-06-22 - r19250 - lavf 52.34.1 - AVFormatContext.packet_size
845 This is now an unsigned int instead of a signed int.
847 2009-06-19 - r19222 - lavc 52.32.0 - AVSubtitle.pts
848 Add a pts field to AVSubtitle which gives the subtitle packet pts
849 in AV_TIME_BASE. Some subtitle de-/encoders (e.g. XSUB) will
850 not work right without this.
852 2009-06-03 - r19078 - lavc 52.30.2 - AV_PKT_FLAG_KEY
853 PKT_FLAG_KEY has been deprecated and will be dropped at the next
854 major version. Use AV_PKT_FLAG_KEY instead.
856 2009-06-01 - r19025 - lavc 52.30.0 - av_lockmgr_register()
857 av_lockmgr_register() can be used to register a callback function
858 that lavc (and in the future, libraries that depend on lavc) can use
859 to implement mutexes. The application should provide a callback function
860 that implements the AV_LOCK_* operations described in avcodec.h.
861 When the lock manager is registered, FFmpeg is guaranteed to behave
862 correctly in a multi-threaded application.
864 2009-04-30 - r18719 - lavc 52.28.0 - av_free_packet()
865 av_free_packet() is no longer an inline function. It is now exported.
867 2009-04-11 - r18431 - lavc 52.25.0 - deprecate av_destruct_packet_nofree()
868 Please use NULL instead. This has been supported since r16506
869 (lavf > 52.23.1, lavc > 52.10.0).
871 2009-04-07 - r18351 - lavc 52.23.0 - avcodec_decode_video/audio/subtitle
872 The old decoding functions are deprecated, all new code should use the
873 new functions avcodec_decode_video2(), avcodec_decode_audio3() and
874 avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt
875 argument instead of a const uint8_t *buf / int buf_size pair.
877 2009-04-03 - r18321 - lavu 50.3.0 - av_fifo_space()
878 Introduce the av_fifo_space() function.
880 2009-04-02 - r18317 - lavc 52.23.0 - AVPacket
881 Move AVPacket declaration from libavformat/avformat.h to
882 libavcodec/avcodec.h.
884 2009-03-22 - r18163 - lavu 50.2.0 - RGB32 pixel formats
885 Convert the pixel formats PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR,
886 PIX_FMT_BGRA, which were defined as macros, into enum PixelFormat values.
887 Conversely PIX_FMT_RGB32, PIX_FMT_RGB32_1, PIX_FMT_BGR32 and
888 PIX_FMT_BGR32_1 are now macros.
889 avcodec_get_pix_fmt() now recognizes the "rgb32" and "bgr32" aliases.
890 Re-sort the enum PixelFormat list accordingly.
891 This change breaks API/ABI backward compatibility.
893 2009-03-22 - r18133 - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants
894 Add the enum PixelFormat values:
895 PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,
896 PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.
898 2009-03-21 - r18116 - lavu 50.0.0 - av_random*
899 The Mersenne Twister PRNG implemented through the av_random* functions
900 was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions
903 2009-03-08 - r17869 - lavu 50.0.0 - AVFifoBuffer
904 av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped
905 and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write
906 and av_fifo_realloc2.
907 In addition, the order of the function arguments of av_fifo_generic_read
908 was changed to match av_fifo_generic_write.
909 The AVFifoBuffer/struct AVFifoBuffer may only be used in an opaque way by
910 applications, they may not use sizeof() or directly access members.
912 2009-03-01 - r17682 - lavf 52.31.0 - Generic metadata API
913 Introduce a new metadata API (see av_metadata_get() and friends).
914 The old API is now deprecated and should not be used anymore. This especially
915 includes the following structure fields:
916 - AVFormatContext.title
917 - AVFormatContext.author
918 - AVFormatContext.copyright
919 - AVFormatContext.comment
920 - AVFormatContext.album
921 - AVFormatContext.year
922 - AVFormatContext.track
923 - AVFormatContext.genre
926 - AVProgram.provider_name