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-xx - xxxxxxx - lavu 51.13.0
17 Add av_toupper()/av_tolower()
19 2011-11-xx - xxxxxxx - lavf 53.13.0
20 Add avformat_network_init()/avformat_network_uninit()
22 2011-xx-xx - xxxxxxx - lavc 53.15.0
23 Remove avcodec_parse_frame.
24 Deprecate AVCodecContext.parse_only and CODEC_CAP_PARSE_ONLY.
26 2011-10-xx - xxxxxxx - lavf 53.10.0
27 Add avformat_new_stream(). Deprecate av_new_stream().
29 2011-xx-xx - xxxxxxx - lavf 53.9.0
30 Add AVFMT_NO_BYTE_SEEK AVInputFormat flag.
32 2011-10-12 - lavu 51.12.0
33 AVOptions API rewrite.
35 - 145f741 FF_OPT_TYPE* renamed to AV_OPT_TYPE_*
36 - new setting/getting functions with slightly different semantics:
37 dac66da av_set_string3 -> av_opt_set
38 av_set_double -> av_opt_set_double
39 av_set_q -> av_opt_set_q
40 av_set_int -> av_opt_set_int
42 41d9d51 av_get_string -> av_opt_get
43 av_get_double -> av_opt_get_double
44 av_get_q -> av_opt_get_q
45 av_get_int -> av_opt_get_int
47 - 8c5dcaa trivial rename av_next_option -> av_opt_next
48 - 641c7af new functions - av_opt_child_next, av_opt_child_class_next
51 2011-09-03 - fb4ca26 - lavc 53.10.0
54 Add {avcodec,avformat,sws}_get_class().
56 2011-09-03 - c11fb82 - lavu 51.10.0
57 Add AV_OPT_SEARCH_FAKE_OBJ flag for av_opt_find() function.
59 2011-08-26 - f2011ed - lavu 51.9.0
60 Add av_fifo_peek2(), deprecate av_fifo_peek().
62 2011-08-16 - 48f9e45 - lavf 53.4.0
63 Add avformat_query_codec().
65 2011-08-16 - bca06e7 - lavc 53.8.0
66 Add avcodec_get_type().
68 2011-08-06 - 2f63440 - lavf 53.4.0
69 Add error_recognition to AVFormatContext.
71 2011-08-02 - 9d39cbf - lavc 53.7.1
72 Add AV_PKT_FLAG_CORRUPT AVPacket flag.
74 2011-07-10 - a67c061 - lavf 53.3.0
75 Add avformat_find_stream_info(), deprecate av_find_stream_info().
77 2011-07-10 - 0b950fe - lavc 53.6.0
78 Add avcodec_open2(), deprecate avcodec_open().
80 2011-06-23 - 67e9ae1 - lavu 51.8.0 - attributes.h
81 Add av_printf_format().
83 2011-06-16 - 05e84c9, 25de595 - lavf 53.2.0 - avformat.h
84 Add avformat_open_input and avformat_write_header().
85 Deprecate av_open_input_stream, av_open_input_file,
86 AVFormatParameters and av_write_header.
88 2011-06-16 - 7e83e1c, dc59ec5 - lavu 51.7.0 - opt.h
89 Add av_opt_set_dict() and av_opt_find().
90 Deprecate av_find_opt().
91 Add AV_DICT_APPEND flag.
93 2011-06-10 - cb7c11c - lavu 51.6.0 - opt.h
94 Add av_opt_flag_is_set().
96 2011-06-08 - d9f80ea - lavu 51.5.0 - AVMetadata
97 Move AVMetadata from lavf to lavu and rename it to
98 AVDictionary -- new installed header dict.h.
99 All av_metadata_* functions renamed to av_dict_*.
101 2011-06-07 - a6703fa - lavu 51.4.0 - av_get_bytes_per_sample()
102 Add av_get_bytes_per_sample() in libavutil/samplefmt.h.
103 Deprecate av_get_bits_per_sample_fmt().
105 2011-06-05 - b39b062 - lavu 51.3.0 - opt.h
106 Add av_opt_free convenience function.
108 2011-05-28 - 0420bd7 - lavu 51.2.0 - pixdesc.h
109 Add av_get_pix_fmt_name() in libavutil/pixdesc.h, and deprecate
110 avcodec_get_pix_fmt_name() in libavcodec/avcodec.h in its favor.
112 2011-05-25 - 30315a8 - lavf 53.1.0 - avformat.h
113 Add fps_probe_size to AVFormatContext.
115 2011-05-18 - 64150ff - lavc 53.4.0 - AVCodecContext.request_sample_fmt
116 Add request_sample_fmt field to AVCodecContext.
118 2011-05-10 - 188dea1 - lavc 53.3.0 - avcodec.h
119 Deprecate AVLPCType and the following fields in
120 AVCodecContext: lpc_coeff_precision, prediction_order_method,
121 min_partition_order, max_partition_order, lpc_type, lpc_passes.
122 Corresponding FLAC encoder options should be used instead.
124 2011-04-26 - bebe72f - lavu 51.1.0 - avutil.h
125 Add AVPictureType enum and av_get_picture_type_char(), deprecate
126 FF_*_TYPE defines and av_get_pict_type_char() defined in
127 libavcodec/avcodec.h.
129 2011-04-26 - 10d3940 - lavfi 2.3.0 - avfilter.h
130 Add pict_type and key_frame fields to AVFilterBufferRefVideo.
132 2011-04-26 - 7a11c82 - lavfi 2.2.0 - vsrc_buffer
133 Add sample_aspect_ratio fields to vsrc_buffer arguments
135 2011-04-21 - 94f7451 - lavc 53.1.0 - avcodec.h
136 Add CODEC_CAP_SLICE_THREADS for codecs supporting sliced threading.
138 2011-04-15 - lavc 52.120.0 - avcodec.h
139 AVPacket structure got additional members for passing side information:
140 4de339e introduce side information for AVPacket
141 2d8591c make containers pass palette change in AVPacket
143 2011-04-12 - lavf 52.107.0 - avio.h
144 Avio cleanup, part II - deprecate the entire URLContext API:
145 175389c add avio_check as a replacement for url_exist
146 ff1ec0c add avio_pause and avio_seek_time as replacements
147 for _av_url_read_fseek/fpause
148 cdc6a87 deprecate av_protocol_next(), avio_enum_protocols
149 should be used instead.
150 80c6e23 rename url_set_interrupt_cb->avio_set_interrupt_cb.
151 f87b1b3 rename open flags: URL_* -> AVIO_*
152 f8270bb add avio_enum_protocols.
153 5593f03 deprecate URLProtocol.
154 c486dad deprecate URLContext.
155 026e175 deprecate the typedef for URLInterruptCB
156 8e76a19 deprecate av_register_protocol2.
157 b840484 deprecate URL_PROTOCOL_FLAG_NESTED_SCHEME
158 1305d93 deprecate av_url_read_seek
159 fa104e1 deprecate av_url_read_pause
160 727c7aa deprecate url_get_filename().
161 5958df3 deprecate url_max_packet_size().
162 1869ea0 deprecate url_get_file_handle().
163 32a97d4 deprecate url_filesize().
164 e52a914 deprecate url_close().
165 58a48c6 deprecate url_seek().
166 925e908 deprecate url_write().
167 dce3756 deprecate url_read_complete().
168 bc371ac deprecate url_read().
169 0589da0 deprecate url_open().
170 62eaaea deprecate url_connect.
171 5652bb9 deprecate url_alloc.
172 333e894 deprecate url_open_protocol
173 e230705 deprecate url_poll and URLPollEntry
175 2011-04-10 - lavu 50.40.0 - pixfmt.h
176 Add PIX_FMT_BGR48LE and PIX_FMT_BGR48BE pixel formats
178 2011-04-08 - lavf 52.106.0 - avformat.h
179 Minor avformat.h cleanup:
180 a9bf9d8 deprecate av_guess_image2_codec
181 c3675df rename avf_sdp_create->av_sdp_create
183 2011-04-03 - lavf 52.105.0 - avio.h
184 Large-scale renaming/deprecating of AVIOContext-related functions:
185 724f6a0 deprecate url_fdopen
186 403ee83 deprecate url_open_dyn_packet_buf
187 6dc7d80 rename url_close_dyn_buf -> avio_close_dyn_buf
188 b92c545 rename url_open_dyn_buf -> avio_open_dyn_buf
189 8978fed introduce an AVIOContext.seekable field as a replacement for
190 AVIOContext.is_streamed and url_is_streamed()
191 b64030f deprecate get_checksum()
192 4c4427a deprecate init_checksum()
193 4ec153b deprecate udp_set_remote_url/get_local_port
194 933e90a deprecate av_url_read_fseek/fpause
195 8d9769a deprecate url_fileno
196 b7f2fdd rename put_flush_packet -> avio_flush
197 35f1023 deprecate url_close_buf
198 83fddae deprecate url_open_buf
199 d9d86e0 rename url_fprintf -> avio_printf
200 59f65d9 deprecate url_setbufsize
201 3e68b3b deprecate url_ferror
202 66e5b1d deprecate url_feof
203 e8bb2e2 deprecate url_fget_max_packet_size
204 76aa876 rename url_fsize -> avio_size
205 e519753 deprecate url_fgetc
206 655e45e deprecate url_fgets
207 a2704c9 rename url_ftell -> avio_tell
208 e16ead0 deprecate get_strz() in favor of avio_get_str
209 0300db8,2af07d3 rename url_fskip -> avio_skip
210 6b4aa5d rename url_fseek -> avio_seek
211 61840b4 deprecate put_tag
212 22a3212 rename url_fopen/fclose -> avio_open/close.
213 0ac8e2b deprecate put_nbyte
214 77eb550 rename put_byte -> avio_w8
215 put_[b/l]e<type> -> avio_w[b/l]<type>
216 put_buffer -> avio_write
217 b7effd4 rename get_byte -> avio_r8,
218 get_[b/l]e<type> -> avio_r[b/l]<type>
219 get_buffer -> avio_read
220 b3db9ce deprecate get_partial_buffer
221 8d9ac96 rename av_alloc_put_byte -> avio_alloc_context
223 2011-03-25 - 34b47d7 - lavc 52.115.0 - AVCodecContext.audio_service_type
224 Add audio_service_type field to AVCodecContext.
226 2011-03-02 - 863c471 - lavf 52.103.0 - av_pkt_dump2, av_pkt_dump_log2
227 Add new functions av_pkt_dump2, av_pkt_dump_log2 that uses the
228 source stream timebase for outputting timestamps. Deprecate
229 av_pkt_dump and av_pkt_dump_log.
231 2011-02-20 - e731b8d - lavf 52.102.0 - avio.h
232 * e731b8d - rename init_put_byte() to ffio_init_context(), deprecating the
233 original, and move it to a private header so it is no longer
234 part of our public API. Instead, use av_alloc_put_byte().
235 * ae628ec - rename ByteIOContext to AVIOContext.
237 2011-02-16 - 09d171b - lavf 52.101.0 - avformat.h
238 lavu 52.39.0 - parseutils.h
239 * 610219a - Add av_ prefix to dump_format().
240 * f6c7375 - Replace parse_date() in lavf with av_parse_time() in lavu.
241 * ab0287f - Move find_info_tag from lavf to lavu and add av_prefix to it.
243 2011-02-15 - lavu 52.38.0 - merge libavcore
244 libavcore is merged back completely into libavutil
246 2011-02-10 - 55bad0c - lavc 52.113.0 - vbv_delay
247 Add vbv_delay field to AVCodecContext
249 2011-02-14 - 24a83bd - lavf 52.100.0 - AV_DISPOSITION_CLEAN_EFFECTS
250 Add AV_DISPOSITION_CLEAN_EFFECTS disposition flag.
252 2011-02-14 - 910b5b8 - lavfi 1.76.0 - AVFilterLink sample_aspect_ratio
253 Add sample_aspect_ratio field to AVFilterLink.
255 2011-02-10 - 12c14cd - lavf 52.99.0 - AVStream.disposition
256 Add AV_DISPOSITION_HEARING_IMPAIRED and AV_DISPOSITION_VISUAL_IMPAIRED.
258 2011-02-09 - 5592734 - lavc 52.112.0 - avcodec_thread_init()
259 Deprecate avcodec_thread_init()/avcodec_thread_free() use; instead
260 set thread_count before calling avcodec_open.
262 2011-02-09 - 778b08a - lavc 52.111.0 - threading API
263 Add CODEC_CAP_FRAME_THREADS with new restrictions on get_buffer()/
264 release_buffer()/draw_horiz_band() callbacks for appropriate codecs.
265 Add thread_type and active_thread_type fields to AVCodecContext.
267 2011-02-08 - 3940caa - lavf 52.98.0 - av_probe_input_buffer
268 Add av_probe_input_buffer() to avformat.h for probing format from a
271 2011-02-06 - fe174fc - lavf 52.97.0 - avio.h
272 Add flag for non-blocking protocols: URL_FLAG_NONBLOCK
274 2011-02-04 - f124b08 - lavf 52.96.0 - avformat_free_context()
275 Add avformat_free_context() in avformat.h.
277 2011-02-03 - f5b82f4 - lavc 52.109.0 - add CODEC_ID_PRORES
278 Add CODEC_ID_PRORES to avcodec.h.
280 2011-02-03 - fe9a3fb - lavc 52.109.0 - H.264 profile defines
281 Add defines for H.264 * Constrained Baseline and Intra profiles
283 2011-02-02 - lavf 52.95.0
284 * 50196a9 - add a new installed header version.h.
285 * 4efd5cf, dccbd97, 93b78d1 - add several variants of public
286 avio_{put,get}_str* functions. Deprecate corresponding semi-public
289 2011-02-02 - dfd2a00 - lavu 50.37.0 - log.h
292 2011-01-15 - r26374 - lavfi 1.74.0 - AVFilterBufferRefAudioProps
293 Rename AVFilterBufferRefAudioProps.samples_nb to nb_samples.
295 2011-01-14 - r26330 - lavf 52.93.0 - av_metadata_copy()
296 Add av_metadata_copy() in avformat.h.
298 2011-01-07 - r26262 - lavc 52.107.0 - deprecate reordered_opaque
299 Deprecate reordered_opaque in favor of pkt_pts/dts.
301 2011-01-07 - r26261 - lavc 52.106.0 - pkt_dts
302 Add pkt_dts to AVFrame, this will in the future allow multithreading decoders
305 2011-01-07 - r26260 - lavc 52.105.0 - pkt_pts
306 Add pkt_pts to AVFrame.
308 2011-01-07 - r26259 - lavc 52.104.0 - av_get_profile_name()
309 Add av_get_profile_name to libavcodec/avcodec.h.
311 2010-12-27 - r26108 - lavfi 1.71.0 - AV_PERM_NEG_LINESIZES
312 Add AV_PERM_NEG_LINESIZES in avfilter.h.
314 2010-12-27 - r26104 - lavf 52.91.0 - av_find_best_stream()
315 Add av_find_best_stream to libavformat/avformat.h.
317 2010-12-27 - r26103 - lavf 52.90.0
318 Add AVFMT_NOSTREAMS flag for formats with no streams,
319 like e.g. text metadata.
321 2010-12-22 - r26073 - lavu 50.36.0 - file.h
322 Add functions av_file_map() and av_file_unmap() in file.h.
324 2010-12-19 - r26056 - lavu 50.35.0 - error.h
325 Add "not found" error codes:
326 AVERROR_DEMUXER_NOT_FOUND
327 AVERROR_MUXER_NOT_FOUND
328 AVERROR_DECODER_NOT_FOUND
329 AVERROR_ENCODER_NOT_FOUND
330 AVERROR_PROTOCOL_NOT_FOUND
331 AVERROR_FILTER_NOT_FOUND
332 AVERROR_BSF_NOT_FOUND
333 AVERROR_STREAM_NOT_FOUND
335 2010-12-09 - r25923 - lavcore 0.16.0 - avcore.h
336 Move AV_NOPTS_VALUE, AV_TIME_BASE, AV_TIME_BASE_Q symbols from
337 avcodec.h to avcore.h.
339 2010-12-04 - r25886 - lavc 52.98.0 - CODEC_CAP_NEG_LINESIZES
340 Add CODEC_CAP_NEG_LINESIZES codec capability flag in avcodec.h.
342 2010-12-04 - r25879 - lavu 50.34.0 - av_get_pix_fmt_string()
343 Deprecate avcodec_pix_fmt_string() in favor of
344 pixdesc.h/av_get_pix_fmt_string().
346 2010-12-04 - r25878 - lavcore 0.15.0 - av_image_alloc()
347 Add av_image_alloc() to libavcore/imgutils.h.
349 2010-12-02 - r25862 - lavfi 1.67.0 - avfilter_graph_create_filter()
350 Add function avfilter_graph_create_filter() in avfiltergraph.h.
352 2010-11-25 - r25826 - lavfi 1.65.0 - avfilter_get_video_buffer_ref_from_arrays()
353 Add function avfilter_get_video_buffer_ref_from_arrays() in
356 2010-11-21 - r25787 - lavcore 0.14.0 - audioconvert.h
357 Add a public audio channel API in audioconvert.h, and deprecate the
358 corresponding functions in libavcodec:
359 avcodec_get_channel_name()
360 avcodec_get_channel_layout()
361 avcodec_get_channel_layout_string()
362 avcodec_channel_layout_num_channels()
363 and the CH_* macros defined in libavcodec/avcodec.h.
365 2010-11-21 - r25777 - lavf 52.85.0 - avformat.h
366 Add av_append_packet().
368 2010-11-21 - r25776 - lavc 52.97.0 - avcodec.h
369 Add av_grow_packet().
371 2010-11-17 - r25761 - lavcore 0.13.0 - parseutils.h
372 Add av_parse_color() declared in libavcore/parseutils.h.
374 2010-11-13 - r25745 - lavc 52.95.0 - AVCodecContext
375 Add AVCodecContext.subtitle_header and AVCodecContext.subtitle_header_size
378 2010-11-13 - r25740 - lavfi 1.62.0 - avfiltergraph.h
379 Make avfiltergraph.h public.
381 2010-11-13 - r25737 - lavfi 1.61.0 - avfiltergraph.h
382 Remove declarations from avfiltergraph.h for the functions:
383 avfilter_graph_check_validity()
384 avfilter_graph_config_links()
385 avfilter_graph_config_formats()
386 which are now internal.
387 Use avfilter_graph_config() instead.
389 2010-11-08 - r25708 - lavu 50.33.0 - eval.h
391 av_parse_and_eval_expr(),
395 in favor of the functions:
396 av_expr_parse_and_eval(),
401 2010-11-08 - r25707 - lavfi 1.59.0 - avfilter_free()
402 Rename avfilter_destroy() to avfilter_free().
403 This change breaks libavfilter API/ABI.
405 2010-11-07 - r25705 - lavfi 1.58.0 - avfiltergraph.h
406 Remove graphparser.h header, move AVFilterInOut and
407 avfilter_graph_parse() declarations to libavfilter/avfiltergraph.h.
409 2010-11-07 - r25700 - lavfi 1.57.0 - AVFilterInOut
410 Rename field AVFilterInOut.filter to AVFilterInOut.filter_ctx.
411 This change breaks libavfilter API.
413 2010-11-04 - r25674 - lavfi 1.56.0 - avfilter_graph_free()
414 Rename avfilter_graph_destroy() to avfilter_graph_free().
415 This change breaks libavfilter API/ABI.
417 2010-11-04 - r25673 - lavfi 1.55.0 - avfilter_graph_alloc()
418 Add avfilter_graph_alloc() to libavfilter/avfiltergraph.h.
420 2010-11-02 - r25654 - lavcore 0.12.0 - av_get_bits_per_sample_fmt()
421 Add av_get_bits_per_sample_fmt() to libavcore/samplefmt.h and
422 deprecate av_get_bits_per_sample_format().
424 2010-11-02 - r25653 - lavcore 0.11.0 - samplefmt.h
425 Add sample format functions in libavcore/samplefmt.h:
426 av_get_sample_fmt_name(),
428 av_get_sample_fmt_string(),
429 and deprecate the corresponding libavcodec/audioconvert.h functions:
430 avcodec_get_sample_fmt_name(),
431 avcodec_get_sample_fmt(),
432 avcodec_sample_fmt_string().
434 2010-11-02 - r25652 - lavcore 0.10.0 - samplefmt.h
435 Define enum AVSampleFormat in libavcore/samplefmt.h, deprecate enum
438 2010-10-16 - r25502 - lavfi 1.52.0 - avfilter_graph_config()
439 Add the function avfilter_graph_config() in avfiltergraph.h.
441 2010-10-15 - r25493 - lavf 52.83.0 - metadata API
442 Change demuxers to export metadata in generic format and
443 muxers to accept generic format. Deprecate the public
446 2010-10-10 - r25441 - lavfi 1.49.0 - AVFilterLink.time_base
447 Add time_base field to AVFilterLink.
449 2010-09-27 - r25236 - lavu 50.31.0 - av_set_options_string()
450 Move av_set_options_string() from libavfilter/parseutils.h to
453 2010-09-27 - r25227 - lavfi 1.47.0 - AVFilterLink
454 Make the AVFilterLink fields srcpad and dstpad store the pointers to
455 the source and destination pads, rather than their indexes.
457 2010-09-27 - r25225 - lavu 50.30.0 - av_get_token()
458 Move av_get_token() from libavfilter/parseutils.h to
459 libavutil/avstring.h.
461 2010-09-26 - r32368 - lsws 0.12.0 - swscale.h
462 Add the functions sws_alloc_context() and sws_init_context().
464 2010-09-26 - r25210 - lavu 50.29.0 - opt.h
465 Move libavcodec/opt.h to libavutil/opt.h.
467 2010-09-24 - r25174 - lavu 50.28.0 - av_log_set_flags()
468 Default of av_log() changed due to many problems to the old no repeat
469 detection. Read the docs of AV_LOG_SKIP_REPEATED in log.h before
470 enabling it for your app!.
472 2010-09-24 - r25167 - lavc 52.90.0 - av_opt_show2()
473 Deprecate av_opt_show() in favor or av_opt_show2().
475 2010-09-14 - r25120 - lavu 50.27.0 - av_popcount()
476 Add av_popcount() to libavutil/common.h.
478 2010-09-08 - r25076 - lavu 50.26.0 - av_get_cpu_flags()
479 Add av_get_cpu_flags().
481 2010-09-07 - r25067 - lavcore 0.9.0 - av_image_copy()
484 2010-09-07 - r25064 - lavcore 0.8.0 - av_image_copy_plane()
485 Add av_image_copy_plane().
487 2010-09-07 - r25057 - lavcore 0.7.0 - imgutils.h
488 Adopt hierarchical scheme for the imgutils.h function names,
489 deprecate the old names.
491 2010-09-04 - r25040 - lavu 50.25.0 - AV_CPU_FLAG_*
492 Deprecate the FF_MM_* flags defined in libavcodec/avcodec.h in favor
493 of the AV_CPU_FLAG_* flags defined in libavutil/cpu.h.
495 2010-08-26 - r24936 - lavc 52.87.0 - avcodec_get_channel_layout()
496 Add avcodec_get_channel_layout() in audioconvert.h.
498 2010-08-20 - r24851 - lavcore 0.6.0 - av_fill_image_max_pixsteps()
499 Rename av_fill_image_max_pixstep() to av_fill_image_max_pixsteps().
501 2010-08-18 - r24827 - lavcore 0.5.0 - av_fill_image_max_pixstep()
502 Add av_fill_image_max_pixstep() in imgutils.h.
504 2010-08-17 - r24814 - lavu 50.24.0 - AV_NE()
507 2010-08-17 - r24811 - lavfi 1.36.0 - audio framework
508 Implement AVFilterBufferRefAudioProps struct for audio properties,
509 get_audio_buffer(), filter_samples() functions and related changes.
511 2010-08-12 - r24787 - lavcore 0.4.0 - av_get_image_linesize()
512 Add av_get_image_linesize() in imgutils.h.
514 2010-08-11 - r24773 - lavfi 1.34.0 - AVFilterBufferRef
515 Resize data and linesize arrays in AVFilterBufferRef to 8.
517 This change breaks libavfilter API/ABI.
519 2010-08-11 - r24768 - lavc 52.85.0 - av_picture_data_copy()
520 Add av_picture_data_copy in avcodec.h.
522 2010-08-11 - r24765 - lavfi 1.33.0 - avfilter_open()
523 Change avfilter_open() signature:
524 AVFilterContext *avfilter_open(AVFilter *filter, const char *inst_name) ->
525 int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);
527 This change breaks libavfilter API/ABI.
529 2010-08-11 - r24763 - lavfi 1.32.0 - AVFilterBufferRef
530 Add a type field to AVFilterBufferRef, and move video specific
531 properties to AVFilterBufferRefVideoProps.
533 This change breaks libavfilter API/ABI.
535 2010-08-07 - r24732 - lavfi 1.31.0 - AVFilterLink
536 Rename AVFilterLink fields:
537 AVFilterLink.srcpic -> AVFilterLink.src_buf
538 AVFilterLink.cur_pic -> AVFilterLink.cur_buf
539 AVFilterLink.outpic -> AVFilterLink.out_buf
541 2010-08-07 - r24731 - lavfi 1.30.0
542 Rename functions and fields:
543 avfilter_(un)ref_pic -> avfilter_(un)ref_buffer
544 avfilter_copy_picref_props -> avfilter_copy_buffer_ref_props
545 AVFilterBufferRef.pic -> AVFilterBufferRef.buffer
547 2010-08-07 - r24730 - lavfi 1.29.0 - AVFilterBufferRef
548 Rename AVFilterPicRef to AVFilterBufferRef.
550 2010-08-07 - r24728 - lavfi 1.28.0 - AVFilterBuffer
551 Move format field from AVFilterBuffer to AVFilterPicRef.
553 2010-08-06 - r24709 - lavcore 0.3.0 - av_check_image_size()
554 Deprecate avcodec_check_dimensions() in favor of the function
555 av_check_image_size() defined in libavcore/imgutils.h.
557 2010-07-30 - r24592 - lavfi 1.27.0 - AVFilterBuffer
558 Increase size of the arrays AVFilterBuffer.data and
559 AVFilterBuffer.linesize from 4 to 8.
561 This change breaks libavfilter ABI.
563 2010-07-29 - r24583 - lavcore 0.2.0 - imgutils.h
564 Add functions av_fill_image_linesizes() and
565 av_fill_image_pointers(), declared in libavcore/imgutils.h.
567 2010-07-27 - r24518 - lavcore 0.1.0 - parseutils.h
568 Deprecate av_parse_video_frame_size() and av_parse_video_frame_rate()
569 defined in libavcodec in favor of the newly added functions
570 av_parse_video_size() and av_parse_video_rate() declared in
571 libavcore/parseutils.h.
573 2010-07-23 - r24439 - lavu 50.23.0 - mathematics.h
574 Add the M_PHI constant definition.
576 2010-07-22 - r24424 - lavfi 1.26.0 - media format generalization
577 Add a type field to AVFilterLink.
579 Change the field types:
580 enum PixelFormat format -> int format in AVFilterBuffer
581 enum PixelFormat *formats -> int *formats in AVFilterFormats
582 enum PixelFormat *format -> int format in AVFilterLink
584 Change the function signatures:
585 AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts); ->
586 AVFilterFormats *avfilter_make_format_list(const int *fmts);
588 int avfilter_add_colorspace(AVFilterFormats **avff, enum PixelFormat pix_fmt); ->
589 int avfilter_add_format (AVFilterFormats **avff, int fmt);
591 AVFilterFormats *avfilter_all_colorspaces(void); ->
592 AVFilterFormats *avfilter_all_formats (enum AVMediaType type);
594 This change breaks libavfilter API/ABI.
596 2010-07-21 - r24393 - lavcore 0.0.0
599 2010-07-17 - r24291 - lavfi 1.25.0 - AVFilterBuffer
600 Remove w and h fields from AVFilterBuffer.
602 2010-07-17 - r24284 - lavfi 1.24.0 - AVFilterBuffer
603 Rename AVFilterPic to AVFilterBuffer.
605 2010-07-17 - r24278 - lavf 52.74.0 - url_fskip()
606 Make url_fskip() return an int error code instead of void.
608 2010-07-11 - r24199 - lavc 52.83.0
609 Add AVCodecContext.lpc_type and AVCodecContext.lpc_passes fields.
611 Deprecate AVCodecContext.use_lpc.
613 2010-07-11 - r24185 - lavc 52.82.0 - avsubtitle_free()
614 Add a function for free the contents of a AVSubtitle generated by
615 avcodec_decode_subtitle.
617 2010-07-11 - r24174 - lavu 50.22.0 - bswap.h and intreadwrite.h
618 Make the bswap.h and intreadwrite.h API public.
620 2010-07-08 - r24101 - lavu 50.21.0 - pixdesc.h
621 Rename read/write_line() to av_read/write_image_line().
623 2010-07-07 - r24091 - lavfi 1.21.0 - avfilter_copy_picref_props()
624 Add avfilter_copy_picref_props().
626 2010-07-03 - r24021 - lavc 52.79.0
627 Add FF_COMPLIANCE_UNOFFICIAL and change all instances of
628 FF_COMPLIANCE_INOFFICIAL to use FF_COMPLIANCE_UNOFFICIAL.
630 2010-07-02 - r23985 - lavu 50.20.0 - lfg.h
631 Export av_lfg_init(), av_lfg_get(), av_mlfg_get(), and av_bmg_get() through
634 2010-06-28 - r23835 - lavfi 1.20.1 - av_parse_color()
635 Extend av_parse_color() syntax, make it accept an alpha value specifier and
636 set the alpha value to 255 by default.
638 2010-06-22 - r23706 - lavf 52.71.0 - URLProtocol.priv_data_size, priv_data_class
639 Add priv_data_size and priv_data_class to URLProtocol.
641 2010-06-22 - r23704 - lavf 52.70.0 - url_alloc(), url_connect()
642 Add url_alloc() and url_connect().
644 2010-06-22 - r23702 - lavf 52.69.0 - av_register_protocol2()
645 Add av_register_protocol2(), deprecating av_register_protocol().
647 2010-06-09 - r23551 - lavu 50.19.0 - av_compare_mod()
648 Add av_compare_mod() to libavutil/mathematics.h.
650 2010-06-05 - r23485 - lavu 50.18.0 - eval API
651 Make the eval API public.
653 2010-06-04 - r23461 - lavu 50.17.0 - AV_BASE64_SIZE
654 Add AV_BASE64_SIZE() macro.
656 2010-06-02 - r23421 - lavc 52.73.0 - av_get_codec_tag_string()
657 Add av_get_codec_tag_string().
659 2010-06-01 - r31301 - lsws 0.11.0 - convertPalette API
660 Add sws_convertPalette8ToPacked32() and sws_convertPalette8ToPacked24().
662 2010-05-26 - r23334 - lavc 52.72.0 - CODEC_CAP_EXPERIMENTAL
663 Add CODEC_CAP_EXPERIMENTAL flag.
664 NOTE: this was backported to 0.6
666 2010-05-23 - r23255 - lavu 50.16.0 - av_get_random_seed()
667 Add av_get_random_seed().
669 2010-05-18 - r23161 - lavf 52.63.0 - AVFMT_FLAG_RTP_HINT
670 Add AVFMT_FLAG_RTP_HINT as possible value for AVFormatContext.flags.
671 NOTE: this was backported to 0.6
673 2010-05-09 - r23066 - lavfi 1.20.0 - AVFilterPicRef
674 Add interlaced and top_field_first fields to AVFilterPicRef.
676 ------------------------------8<-------------------------------------
677 0.6 branch was cut here
678 ----------------------------->8--------------------------------------
680 2010-05-01 - r23002 - lavf 52.62.0 - probe function
681 Add av_probe_input_format2 to API, it allows ignoring probe
682 results below given score and returns the actual probe score.
684 2010-04-01 - r22806 - lavf 52.61.0 - metadata API
685 Add a flag for av_metadata_set2() to disable overwriting of
688 2010-04-01 - r22753 - lavc 52.66.0
689 Add avcodec_get_edge_width().
691 2010-03-31 - r22750 - lavc 52.65.0
692 Add avcodec_copy_context().
694 2010-03-31 - r22748 - lavf 52.60.0 - av_match_ext()
695 Make av_match_ext() public.
697 2010-03-31 - r22736 - lavu 50.14.0 - AVMediaType
698 Move AVMediaType enum from libavcodec to libavutil.
700 2010-03-31 - r22735 - lavc 52.64.0 - AVMediaType
701 Define AVMediaType enum, and use it instead of enum CodecType, which
702 is deprecated and will be dropped at the next major bump.
704 2010-03-25 - r22684 - lavu 50.13.0 - av_strerror()
705 Implement av_strerror().
707 2010-03-23 - r22649 - lavc 52.60.0 - av_dct_init()
708 Support DCT-I and DST-I.
710 2010-03-15 - r22540 - lavf 52.56.0 - AVFormatContext.start_time_realtime
711 Add AVFormatContext.start_time_realtime field.
713 2010-03-13 - r22506 - lavfi 1.18.0 - AVFilterPicRef.pos
714 Add AVFilterPicRef.pos field.
716 2010-03-13 - r22501 - lavu 50.12.0 - error.h
717 Move error code definitions from libavcodec/avcodec.h to
718 the new public header libavutil/error.h.
720 2010-03-07 - r22291 - lavc 52.56.0 - avfft.h
721 Add public FFT interface.
723 2010-03-06 - r22251 - lavu 50.11.0 - av_stristr()
726 2010-03-03 - r22174 - lavu 50.10.0 - av_tree_enumerate()
727 Add av_tree_enumerate().
729 2010-02-07 - r21673 - lavu 50.9.0 - av_compare_ts()
732 2010-02-05 - r30513 - lsws 0.10.0 - sws_getCoefficients()
733 Add sws_getCoefficients().
735 2010-02-01 - r21587 - lavf 52.50.0 - metadata API
736 Add a list of generic tag names, change 'author' -> 'artist',
739 2010-01-30 - r21545 - lavu 50.8.0 - av_get_pix_fmt()
740 Add av_get_pix_fmt().
742 2010-01-21 - r30381 - lsws 0.9.0 - sws_scale()
743 Change constness attributes of sws_scale() parameters.
745 2010-01-10 - r21121 - lavfi 1.15.0 - avfilter_graph_config_links()
746 Add a log_ctx parameter to avfilter_graph_config_links().
748 2010-01-07 - r30236 - lsws 0.8.0 - sws_isSupported{In,Out}put()
749 Add sws_isSupportedInput() and sws_isSupportedOutput() functions.
751 2010-01-06 - r21035 - lavfi 1.14.0 - avfilter_add_colorspace()
752 Change the avfilter_add_colorspace() signature, make it accept an
753 (AVFilterFormats **) rather than an (AVFilterFormats *) as before.
755 2010-01-03 - r21007 - lavfi 1.13.0 - avfilter_add_colorspace()
756 Add avfilter_add_colorspace().
758 2010-01-02 - r20998 - lavf 52.46.0 - av_match_ext()
759 Add av_match_ext(), it should be used in place of match_ext().
761 2010-01-01 - r20991 - lavf 52.45.0 - av_guess_format()
762 Add av_guess_format(), it should be used in place of guess_format().
764 2009-12-13 - r20834 - lavf 52.43.0 - metadata API
765 Add av_metadata_set2(), AV_METADATA_DONT_STRDUP_KEY and
766 AV_METADATA_DONT_STRDUP_VAL.
768 2009-12-13 - r20829 - lavu 50.7.0 - avstring.h API
771 2009-12-13 - r20826 - lavc 52.42.0 - AVStream
774 2009-12-12 - r20808 - lavu 50.6.0 - av_bmg_next()
775 Introduce the av_bmg_next() function.
777 2009-12-05 - r20734 - lavfi 1.12.0 - avfilter_draw_slice()
778 Add a slice_dir parameter to avfilter_draw_slice().
780 2009-11-26 - r20611 - lavfi 1.11.0 - AVFilter
781 Remove the next field from AVFilter, this is not anymore required.
783 2009-11-25 - r20607 - lavfi 1.10.0 - avfilter_next()
784 Introduce the avfilter_next() function.
786 2009-11-25 - r20605 - lavfi 1.9.0 - avfilter_register()
787 Change the signature of avfilter_register() to make it return an
788 int. This is required since now the registration operation may fail.
790 2009-11-25 - r20603 - lavu 50.5.0 - pixdesc.h API
791 Make the pixdesc.h API public.
793 2009-10-27 - r20385 - lavfi 1.5.0 - AVFilter.next
794 Add a next field to AVFilter, this is used for simplifying the
795 registration and management of the registered filters.
797 2009-10-23 - r20356 - lavfi 1.4.1 - AVFilter.description
798 Add a description field to AVFilter.
800 2009-10-19 - r20302 - lavfi 1.3.0 - avfilter_make_format_list()
801 Change the interface of avfilter_make_format_list() from
802 avfilter_make_format_list(int n, ...) to
803 avfilter_make_format_list(enum PixelFormat *pix_fmts).
805 2009-10-18 - r20272 - lavfi 1.0.0 - avfilter_get_video_buffer()
806 Make avfilter_get_video_buffer() recursive and add the w and h
809 2009-10-07 - r20189 - lavfi 0.5.1 - AVFilterPic
810 Add w and h fields to AVFilterPic.
812 2009-06-22 - r19250 - lavf 52.34.1 - AVFormatContext.packet_size
813 This is now an unsigned int instead of a signed int.
815 2009-06-19 - r19222 - lavc 52.32.0 - AVSubtitle.pts
816 Add a pts field to AVSubtitle which gives the subtitle packet pts
817 in AV_TIME_BASE. Some subtitle de-/encoders (e.g. XSUB) will
818 not work right without this.
820 2009-06-03 - r19078 - lavc 52.30.2 - AV_PKT_FLAG_KEY
821 PKT_FLAG_KEY has been deprecated and will be dropped at the next
822 major version. Use AV_PKT_FLAG_KEY instead.
824 2009-06-01 - r19025 - lavc 52.30.0 - av_lockmgr_register()
825 av_lockmgr_register() can be used to register a callback function
826 that lavc (and in the future, libraries that depend on lavc) can use
827 to implement mutexes. The application should provide a callback function
828 that implements the AV_LOCK_* operations described in avcodec.h.
829 When the lock manager is registered, FFmpeg is guaranteed to behave
830 correctly in a multi-threaded application.
832 2009-04-30 - r18719 - lavc 52.28.0 - av_free_packet()
833 av_free_packet() is no longer an inline function. It is now exported.
835 2009-04-11 - r18431 - lavc 52.25.0 - deprecate av_destruct_packet_nofree()
836 Please use NULL instead. This has been supported since r16506
837 (lavf > 52.23.1, lavc > 52.10.0).
839 2009-04-07 - r18351 - lavc 52.23.0 - avcodec_decode_video/audio/subtitle
840 The old decoding functions are deprecated, all new code should use the
841 new functions avcodec_decode_video2(), avcodec_decode_audio3() and
842 avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt
843 argument instead of a const uint8_t *buf / int buf_size pair.
845 2009-04-03 - r18321 - lavu 50.3.0 - av_fifo_space()
846 Introduce the av_fifo_space() function.
848 2009-04-02 - r18317 - lavc 52.23.0 - AVPacket
849 Move AVPacket declaration from libavformat/avformat.h to
850 libavcodec/avcodec.h.
852 2009-03-22 - r18163 - lavu 50.2.0 - RGB32 pixel formats
853 Convert the pixel formats PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR,
854 PIX_FMT_BGRA, which were defined as macros, into enum PixelFormat values.
855 Conversely PIX_FMT_RGB32, PIX_FMT_RGB32_1, PIX_FMT_BGR32 and
856 PIX_FMT_BGR32_1 are now macros.
857 avcodec_get_pix_fmt() now recognizes the "rgb32" and "bgr32" aliases.
858 Re-sort the enum PixelFormat list accordingly.
859 This change breaks API/ABI backward compatibility.
861 2009-03-22 - r18133 - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants
862 Add the enum PixelFormat values:
863 PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,
864 PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.
866 2009-03-21 - r18116 - lavu 50.0.0 - av_random*
867 The Mersenne Twister PRNG implemented through the av_random* functions
868 was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions
871 2009-03-08 - r17869 - lavu 50.0.0 - AVFifoBuffer
872 av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped
873 and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write
874 and av_fifo_realloc2.
875 In addition, the order of the function arguments of av_fifo_generic_read
876 was changed to match av_fifo_generic_write.
877 The AVFifoBuffer/struct AVFifoBuffer may only be used in an opaque way by
878 applications, they may not use sizeof() or directly access members.
880 2009-03-01 - r17682 - lavf 52.31.0 - Generic metadata API
881 Introduce a new metadata API (see av_metadata_get() and friends).
882 The old API is now deprecated and should not be used anymore. This especially
883 includes the following structure fields:
884 - AVFormatContext.title
885 - AVFormatContext.author
886 - AVFormatContext.copyright
887 - AVFormatContext.comment
888 - AVFormatContext.album
889 - AVFormatContext.year
890 - AVFormatContext.track
891 - AVFormatContext.genre
894 - AVProgram.provider_name