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-xx-xx - xxxxxxx - lavc 53.15.0
17 Remove avcodec_parse_frame.
18 Deprecate AVCodecContext.parse_only and CODEC_CAP_PARSE_ONLY.
20 2011-10-xx - xxxxxxx - lavf 53.10.0
21 Add avformat_new_stream(). Deprecate av_new_stream().
23 2011-xx-xx - xxxxxxx - lavf 53.9.0
24 Add AVFMT_NO_BYTE_SEEK AVInputFormat flag.
26 2011-10-12 - lavu 51.12.0
27 AVOptions API rewrite.
29 - 145f741 FF_OPT_TYPE* renamed to AV_OPT_TYPE_*
30 - new setting/getting functions with slightly different semantics:
31 dac66da av_set_string3 -> av_opt_set
32 av_set_double -> av_opt_set_double
33 av_set_q -> av_opt_set_q
34 av_set_int -> av_opt_set_int
36 41d9d51 av_get_string -> av_opt_get
37 av_get_double -> av_opt_get_double
38 av_get_q -> av_opt_get_q
39 av_get_int -> av_opt_get_int
41 - 8c5dcaa trivial rename av_next_option -> av_opt_next
42 - 641c7af new functions - av_opt_child_next, av_opt_child_class_next
45 2011-09-03 - fb4ca26 - lavc 53.10.0
48 Add {avcodec,avformat,sws}_get_class().
50 2011-09-03 - c11fb82 - lavu 51.10.0
51 Add AV_OPT_SEARCH_FAKE_OBJ flag for av_opt_find() function.
53 2011-08-26 - f2011ed - lavu 51.9.0
54 Add av_fifo_peek2(), deprecate av_fifo_peek().
56 2011-08-16 - 48f9e45 - lavf 53.4.0
57 Add avformat_query_codec().
59 2011-08-16 - bca06e7 - lavc 53.8.0
60 Add avcodec_get_type().
62 2011-08-06 - 2f63440 - lavf 53.4.0
63 Add error_recognition to AVFormatContext.
65 2011-08-02 - 9d39cbf - lavc 53.7.1
66 Add AV_PKT_FLAG_CORRUPT AVPacket flag.
68 2011-07-10 - a67c061 - lavf 53.3.0
69 Add avformat_find_stream_info(), deprecate av_find_stream_info().
71 2011-07-10 - 0b950fe - lavc 53.6.0
72 Add avcodec_open2(), deprecate avcodec_open().
74 2011-06-23 - 67e9ae1 - lavu 51.8.0 - attributes.h
75 Add av_printf_format().
77 2011-06-16 - 05e84c9, 25de595 - lavf 53.2.0 - avformat.h
78 Add avformat_open_input and avformat_write_header().
79 Deprecate av_open_input_stream, av_open_input_file,
80 AVFormatParameters and av_write_header.
82 2011-06-16 - 7e83e1c, dc59ec5 - lavu 51.7.0 - opt.h
83 Add av_opt_set_dict() and av_opt_find().
84 Deprecate av_find_opt().
85 Add AV_DICT_APPEND flag.
87 2011-06-10 - cb7c11c - lavu 51.6.0 - opt.h
88 Add av_opt_flag_is_set().
90 2011-06-08 - d9f80ea - lavu 51.5.0 - AVMetadata
91 Move AVMetadata from lavf to lavu and rename it to
92 AVDictionary -- new installed header dict.h.
93 All av_metadata_* functions renamed to av_dict_*.
95 2011-06-07 - a6703fa - lavu 51.4.0 - av_get_bytes_per_sample()
96 Add av_get_bytes_per_sample() in libavutil/samplefmt.h.
97 Deprecate av_get_bits_per_sample_fmt().
99 2011-06-05 - b39b062 - lavu 51.3.0 - opt.h
100 Add av_opt_free convenience function.
102 2011-05-28 - 0420bd7 - lavu 51.2.0 - pixdesc.h
103 Add av_get_pix_fmt_name() in libavutil/pixdesc.h, and deprecate
104 avcodec_get_pix_fmt_name() in libavcodec/avcodec.h in its favor.
106 2011-05-25 - 30315a8 - lavf 53.1.0 - avformat.h
107 Add fps_probe_size to AVFormatContext.
109 2011-05-18 - 64150ff - lavc 53.4.0 - AVCodecContext.request_sample_fmt
110 Add request_sample_fmt field to AVCodecContext.
112 2011-05-10 - 188dea1 - lavc 53.3.0 - avcodec.h
113 Deprecate AVLPCType and the following fields in
114 AVCodecContext: lpc_coeff_precision, prediction_order_method,
115 min_partition_order, max_partition_order, lpc_type, lpc_passes.
116 Corresponding FLAC encoder options should be used instead.
118 2011-04-26 - bebe72f - lavu 51.1.0 - avutil.h
119 Add AVPictureType enum and av_get_picture_type_char(), deprecate
120 FF_*_TYPE defines and av_get_pict_type_char() defined in
121 libavcodec/avcodec.h.
123 2011-04-26 - 10d3940 - lavfi 2.3.0 - avfilter.h
124 Add pict_type and key_frame fields to AVFilterBufferRefVideo.
126 2011-04-26 - 7a11c82 - lavfi 2.2.0 - vsrc_buffer
127 Add sample_aspect_ratio fields to vsrc_buffer arguments
129 2011-04-21 - 94f7451 - lavc 53.1.0 - avcodec.h
130 Add CODEC_CAP_SLICE_THREADS for codecs supporting sliced threading.
132 2011-04-15 - lavc 52.120.0 - avcodec.h
133 AVPacket structure got additional members for passing side information:
134 4de339e introduce side information for AVPacket
135 2d8591c make containers pass palette change in AVPacket
137 2011-04-12 - lavf 52.107.0 - avio.h
138 Avio cleanup, part II - deprecate the entire URLContext API:
139 175389c add avio_check as a replacement for url_exist
140 ff1ec0c add avio_pause and avio_seek_time as replacements
141 for _av_url_read_fseek/fpause
142 cdc6a87 deprecate av_protocol_next(), avio_enum_protocols
143 should be used instead.
144 80c6e23 rename url_set_interrupt_cb->avio_set_interrupt_cb.
145 f87b1b3 rename open flags: URL_* -> AVIO_*
146 f8270bb add avio_enum_protocols.
147 5593f03 deprecate URLProtocol.
148 c486dad deprecate URLContext.
149 026e175 deprecate the typedef for URLInterruptCB
150 8e76a19 deprecate av_register_protocol2.
151 b840484 deprecate URL_PROTOCOL_FLAG_NESTED_SCHEME
152 1305d93 deprecate av_url_read_seek
153 fa104e1 deprecate av_url_read_pause
154 727c7aa deprecate url_get_filename().
155 5958df3 deprecate url_max_packet_size().
156 1869ea0 deprecate url_get_file_handle().
157 32a97d4 deprecate url_filesize().
158 e52a914 deprecate url_close().
159 58a48c6 deprecate url_seek().
160 925e908 deprecate url_write().
161 dce3756 deprecate url_read_complete().
162 bc371ac deprecate url_read().
163 0589da0 deprecate url_open().
164 62eaaea deprecate url_connect.
165 5652bb9 deprecate url_alloc.
166 333e894 deprecate url_open_protocol
167 e230705 deprecate url_poll and URLPollEntry
169 2011-04-10 - lavu 50.40.0 - pixfmt.h
170 Add PIX_FMT_BGR48LE and PIX_FMT_BGR48BE pixel formats
172 2011-04-08 - lavf 52.106.0 - avformat.h
173 Minor avformat.h cleanup:
174 a9bf9d8 deprecate av_guess_image2_codec
175 c3675df rename avf_sdp_create->av_sdp_create
177 2011-04-03 - lavf 52.105.0 - avio.h
178 Large-scale renaming/deprecating of AVIOContext-related functions:
179 724f6a0 deprecate url_fdopen
180 403ee83 deprecate url_open_dyn_packet_buf
181 6dc7d80 rename url_close_dyn_buf -> avio_close_dyn_buf
182 b92c545 rename url_open_dyn_buf -> avio_open_dyn_buf
183 8978fed introduce an AVIOContext.seekable field as a replacement for
184 AVIOContext.is_streamed and url_is_streamed()
185 b64030f deprecate get_checksum()
186 4c4427a deprecate init_checksum()
187 4ec153b deprecate udp_set_remote_url/get_local_port
188 933e90a deprecate av_url_read_fseek/fpause
189 8d9769a deprecate url_fileno
190 b7f2fdd rename put_flush_packet -> avio_flush
191 35f1023 deprecate url_close_buf
192 83fddae deprecate url_open_buf
193 d9d86e0 rename url_fprintf -> avio_printf
194 59f65d9 deprecate url_setbufsize
195 3e68b3b deprecate url_ferror
196 66e5b1d deprecate url_feof
197 e8bb2e2 deprecate url_fget_max_packet_size
198 76aa876 rename url_fsize -> avio_size
199 e519753 deprecate url_fgetc
200 655e45e deprecate url_fgets
201 a2704c9 rename url_ftell -> avio_tell
202 e16ead0 deprecate get_strz() in favor of avio_get_str
203 0300db8,2af07d3 rename url_fskip -> avio_skip
204 6b4aa5d rename url_fseek -> avio_seek
205 61840b4 deprecate put_tag
206 22a3212 rename url_fopen/fclose -> avio_open/close.
207 0ac8e2b deprecate put_nbyte
208 77eb550 rename put_byte -> avio_w8
209 put_[b/l]e<type> -> avio_w[b/l]<type>
210 put_buffer -> avio_write
211 b7effd4 rename get_byte -> avio_r8,
212 get_[b/l]e<type> -> avio_r[b/l]<type>
213 get_buffer -> avio_read
214 b3db9ce deprecate get_partial_buffer
215 8d9ac96 rename av_alloc_put_byte -> avio_alloc_context
217 2011-03-25 - 34b47d7 - lavc 52.115.0 - AVCodecContext.audio_service_type
218 Add audio_service_type field to AVCodecContext.
220 2011-03-02 - 863c471 - lavf 52.103.0 - av_pkt_dump2, av_pkt_dump_log2
221 Add new functions av_pkt_dump2, av_pkt_dump_log2 that uses the
222 source stream timebase for outputting timestamps. Deprecate
223 av_pkt_dump and av_pkt_dump_log.
225 2011-02-20 - e731b8d - lavf 52.102.0 - avio.h
226 * e731b8d - rename init_put_byte() to ffio_init_context(), deprecating the
227 original, and move it to a private header so it is no longer
228 part of our public API. Instead, use av_alloc_put_byte().
229 * ae628ec - rename ByteIOContext to AVIOContext.
231 2011-02-16 - 09d171b - lavf 52.101.0 - avformat.h
232 lavu 52.39.0 - parseutils.h
233 * 610219a - Add av_ prefix to dump_format().
234 * f6c7375 - Replace parse_date() in lavf with av_parse_time() in lavu.
235 * ab0287f - Move find_info_tag from lavf to lavu and add av_prefix to it.
237 2011-02-15 - lavu 52.38.0 - merge libavcore
238 libavcore is merged back completely into libavutil
240 2011-02-10 - 55bad0c - lavc 52.113.0 - vbv_delay
241 Add vbv_delay field to AVCodecContext
243 2011-02-14 - 24a83bd - lavf 52.100.0 - AV_DISPOSITION_CLEAN_EFFECTS
244 Add AV_DISPOSITION_CLEAN_EFFECTS disposition flag.
246 2011-02-14 - 910b5b8 - lavfi 1.76.0 - AVFilterLink sample_aspect_ratio
247 Add sample_aspect_ratio field to AVFilterLink.
249 2011-02-10 - 12c14cd - lavf 52.99.0 - AVStream.disposition
250 Add AV_DISPOSITION_HEARING_IMPAIRED and AV_DISPOSITION_VISUAL_IMPAIRED.
252 2011-02-09 - 5592734 - lavc 52.112.0 - avcodec_thread_init()
253 Deprecate avcodec_thread_init()/avcodec_thread_free() use; instead
254 set thread_count before calling avcodec_open.
256 2011-02-09 - 778b08a - lavc 52.111.0 - threading API
257 Add CODEC_CAP_FRAME_THREADS with new restrictions on get_buffer()/
258 release_buffer()/draw_horiz_band() callbacks for appropriate codecs.
259 Add thread_type and active_thread_type fields to AVCodecContext.
261 2011-02-08 - 3940caa - lavf 52.98.0 - av_probe_input_buffer
262 Add av_probe_input_buffer() to avformat.h for probing format from a
265 2011-02-06 - fe174fc - lavf 52.97.0 - avio.h
266 Add flag for non-blocking protocols: URL_FLAG_NONBLOCK
268 2011-02-04 - f124b08 - lavf 52.96.0 - avformat_free_context()
269 Add avformat_free_context() in avformat.h.
271 2011-02-03 - f5b82f4 - lavc 52.109.0 - add CODEC_ID_PRORES
272 Add CODEC_ID_PRORES to avcodec.h.
274 2011-02-03 - fe9a3fb - lavc 52.109.0 - H.264 profile defines
275 Add defines for H.264 * Constrained Baseline and Intra profiles
277 2011-02-02 - lavf 52.95.0
278 * 50196a9 - add a new installed header version.h.
279 * 4efd5cf, dccbd97, 93b78d1 - add several variants of public
280 avio_{put,get}_str* functions. Deprecate corresponding semi-public
283 2011-02-02 - dfd2a00 - lavu 50.37.0 - log.h
286 2011-01-15 - r26374 - lavfi 1.74.0 - AVFilterBufferRefAudioProps
287 Rename AVFilterBufferRefAudioProps.samples_nb to nb_samples.
289 2011-01-14 - r26330 - lavf 52.93.0 - av_metadata_copy()
290 Add av_metadata_copy() in avformat.h.
292 2011-01-07 - r26262 - lavc 52.107.0 - deprecate reordered_opaque
293 Deprecate reordered_opaque in favor of pkt_pts/dts.
295 2011-01-07 - r26261 - lavc 52.106.0 - pkt_dts
296 Add pkt_dts to AVFrame, this will in the future allow multithreading decoders
299 2011-01-07 - r26260 - lavc 52.105.0 - pkt_pts
300 Add pkt_pts to AVFrame.
302 2011-01-07 - r26259 - lavc 52.104.0 - av_get_profile_name()
303 Add av_get_profile_name to libavcodec/avcodec.h.
305 2010-12-27 - r26108 - lavfi 1.71.0 - AV_PERM_NEG_LINESIZES
306 Add AV_PERM_NEG_LINESIZES in avfilter.h.
308 2010-12-27 - r26104 - lavf 52.91.0 - av_find_best_stream()
309 Add av_find_best_stream to libavformat/avformat.h.
311 2010-12-27 - r26103 - lavf 52.90.0
312 Add AVFMT_NOSTREAMS flag for formats with no streams,
313 like e.g. text metadata.
315 2010-12-22 - r26073 - lavu 50.36.0 - file.h
316 Add functions av_file_map() and av_file_unmap() in file.h.
318 2010-12-19 - r26056 - lavu 50.35.0 - error.h
319 Add "not found" error codes:
320 AVERROR_DEMUXER_NOT_FOUND
321 AVERROR_MUXER_NOT_FOUND
322 AVERROR_DECODER_NOT_FOUND
323 AVERROR_ENCODER_NOT_FOUND
324 AVERROR_PROTOCOL_NOT_FOUND
325 AVERROR_FILTER_NOT_FOUND
326 AVERROR_BSF_NOT_FOUND
327 AVERROR_STREAM_NOT_FOUND
329 2010-12-09 - r25923 - lavcore 0.16.0 - avcore.h
330 Move AV_NOPTS_VALUE, AV_TIME_BASE, AV_TIME_BASE_Q symbols from
331 avcodec.h to avcore.h.
333 2010-12-04 - r25886 - lavc 52.98.0 - CODEC_CAP_NEG_LINESIZES
334 Add CODEC_CAP_NEG_LINESIZES codec capability flag in avcodec.h.
336 2010-12-04 - r25879 - lavu 50.34.0 - av_get_pix_fmt_string()
337 Deprecate avcodec_pix_fmt_string() in favor of
338 pixdesc.h/av_get_pix_fmt_string().
340 2010-12-04 - r25878 - lavcore 0.15.0 - av_image_alloc()
341 Add av_image_alloc() to libavcore/imgutils.h.
343 2010-12-02 - r25862 - lavfi 1.67.0 - avfilter_graph_create_filter()
344 Add function avfilter_graph_create_filter() in avfiltergraph.h.
346 2010-11-25 - r25826 - lavfi 1.65.0 - avfilter_get_video_buffer_ref_from_arrays()
347 Add function avfilter_get_video_buffer_ref_from_arrays() in
350 2010-11-21 - r25787 - lavcore 0.14.0 - audioconvert.h
351 Add a public audio channel API in audioconvert.h, and deprecate the
352 corresponding functions in libavcodec:
353 avcodec_get_channel_name()
354 avcodec_get_channel_layout()
355 avcodec_get_channel_layout_string()
356 avcodec_channel_layout_num_channels()
357 and the CH_* macros defined in libavcodec/avcodec.h.
359 2010-11-21 - r25777 - lavf 52.85.0 - avformat.h
360 Add av_append_packet().
362 2010-11-21 - r25776 - lavc 52.97.0 - avcodec.h
363 Add av_grow_packet().
365 2010-11-17 - r25761 - lavcore 0.13.0 - parseutils.h
366 Add av_parse_color() declared in libavcore/parseutils.h.
368 2010-11-13 - r25745 - lavc 52.95.0 - AVCodecContext
369 Add AVCodecContext.subtitle_header and AVCodecContext.subtitle_header_size
372 2010-11-13 - r25740 - lavfi 1.62.0 - avfiltergraph.h
373 Make avfiltergraph.h public.
375 2010-11-13 - r25737 - lavfi 1.61.0 - avfiltergraph.h
376 Remove declarations from avfiltergraph.h for the functions:
377 avfilter_graph_check_validity()
378 avfilter_graph_config_links()
379 avfilter_graph_config_formats()
380 which are now internal.
381 Use avfilter_graph_config() instead.
383 2010-11-08 - r25708 - lavu 50.33.0 - eval.h
385 av_parse_and_eval_expr(),
389 in favor of the functions:
390 av_expr_parse_and_eval(),
395 2010-11-08 - r25707 - lavfi 1.59.0 - avfilter_free()
396 Rename avfilter_destroy() to avfilter_free().
397 This change breaks libavfilter API/ABI.
399 2010-11-07 - r25705 - lavfi 1.58.0 - avfiltergraph.h
400 Remove graphparser.h header, move AVFilterInOut and
401 avfilter_graph_parse() declarations to libavfilter/avfiltergraph.h.
403 2010-11-07 - r25700 - lavfi 1.57.0 - AVFilterInOut
404 Rename field AVFilterInOut.filter to AVFilterInOut.filter_ctx.
405 This change breaks libavfilter API.
407 2010-11-04 - r25674 - lavfi 1.56.0 - avfilter_graph_free()
408 Rename avfilter_graph_destroy() to avfilter_graph_free().
409 This change breaks libavfilter API/ABI.
411 2010-11-04 - r25673 - lavfi 1.55.0 - avfilter_graph_alloc()
412 Add avfilter_graph_alloc() to libavfilter/avfiltergraph.h.
414 2010-11-02 - r25654 - lavcore 0.12.0 - av_get_bits_per_sample_fmt()
415 Add av_get_bits_per_sample_fmt() to libavcore/samplefmt.h and
416 deprecate av_get_bits_per_sample_format().
418 2010-11-02 - r25653 - lavcore 0.11.0 - samplefmt.h
419 Add sample format functions in libavcore/samplefmt.h:
420 av_get_sample_fmt_name(),
422 av_get_sample_fmt_string(),
423 and deprecate the corresponding libavcodec/audioconvert.h functions:
424 avcodec_get_sample_fmt_name(),
425 avcodec_get_sample_fmt(),
426 avcodec_sample_fmt_string().
428 2010-11-02 - r25652 - lavcore 0.10.0 - samplefmt.h
429 Define enum AVSampleFormat in libavcore/samplefmt.h, deprecate enum
432 2010-10-16 - r25502 - lavfi 1.52.0 - avfilter_graph_config()
433 Add the function avfilter_graph_config() in avfiltergraph.h.
435 2010-10-15 - r25493 - lavf 52.83.0 - metadata API
436 Change demuxers to export metadata in generic format and
437 muxers to accept generic format. Deprecate the public
440 2010-10-10 - r25441 - lavfi 1.49.0 - AVFilterLink.time_base
441 Add time_base field to AVFilterLink.
443 2010-09-27 - r25236 - lavu 50.31.0 - av_set_options_string()
444 Move av_set_options_string() from libavfilter/parseutils.h to
447 2010-09-27 - r25227 - lavfi 1.47.0 - AVFilterLink
448 Make the AVFilterLink fields srcpad and dstpad store the pointers to
449 the source and destination pads, rather than their indexes.
451 2010-09-27 - r25225 - lavu 50.30.0 - av_get_token()
452 Move av_get_token() from libavfilter/parseutils.h to
453 libavutil/avstring.h.
455 2010-09-26 - r32368 - lsws 0.12.0 - swscale.h
456 Add the functions sws_alloc_context() and sws_init_context().
458 2010-09-26 - r25210 - lavu 50.29.0 - opt.h
459 Move libavcodec/opt.h to libavutil/opt.h.
461 2010-09-24 - r25174 - lavu 50.28.0 - av_log_set_flags()
462 Default of av_log() changed due to many problems to the old no repeat
463 detection. Read the docs of AV_LOG_SKIP_REPEATED in log.h before
464 enabling it for your app!.
466 2010-09-24 - r25167 - lavc 52.90.0 - av_opt_show2()
467 Deprecate av_opt_show() in favor or av_opt_show2().
469 2010-09-14 - r25120 - lavu 50.27.0 - av_popcount()
470 Add av_popcount() to libavutil/common.h.
472 2010-09-08 - r25076 - lavu 50.26.0 - av_get_cpu_flags()
473 Add av_get_cpu_flags().
475 2010-09-07 - r25067 - lavcore 0.9.0 - av_image_copy()
478 2010-09-07 - r25064 - lavcore 0.8.0 - av_image_copy_plane()
479 Add av_image_copy_plane().
481 2010-09-07 - r25057 - lavcore 0.7.0 - imgutils.h
482 Adopt hierarchical scheme for the imgutils.h function names,
483 deprecate the old names.
485 2010-09-04 - r25040 - lavu 50.25.0 - AV_CPU_FLAG_*
486 Deprecate the FF_MM_* flags defined in libavcodec/avcodec.h in favor
487 of the AV_CPU_FLAG_* flags defined in libavutil/cpu.h.
489 2010-08-26 - r24936 - lavc 52.87.0 - avcodec_get_channel_layout()
490 Add avcodec_get_channel_layout() in audioconvert.h.
492 2010-08-20 - r24851 - lavcore 0.6.0 - av_fill_image_max_pixsteps()
493 Rename av_fill_image_max_pixstep() to av_fill_image_max_pixsteps().
495 2010-08-18 - r24827 - lavcore 0.5.0 - av_fill_image_max_pixstep()
496 Add av_fill_image_max_pixstep() in imgutils.h.
498 2010-08-17 - r24814 - lavu 50.24.0 - AV_NE()
501 2010-08-17 - r24811 - lavfi 1.36.0 - audio framework
502 Implement AVFilterBufferRefAudioProps struct for audio properties,
503 get_audio_buffer(), filter_samples() functions and related changes.
505 2010-08-12 - r24787 - lavcore 0.4.0 - av_get_image_linesize()
506 Add av_get_image_linesize() in imgutils.h.
508 2010-08-11 - r24773 - lavfi 1.34.0 - AVFilterBufferRef
509 Resize data and linesize arrays in AVFilterBufferRef to 8.
511 This change breaks libavfilter API/ABI.
513 2010-08-11 - r24768 - lavc 52.85.0 - av_picture_data_copy()
514 Add av_picture_data_copy in avcodec.h.
516 2010-08-11 - r24765 - lavfi 1.33.0 - avfilter_open()
517 Change avfilter_open() signature:
518 AVFilterContext *avfilter_open(AVFilter *filter, const char *inst_name) ->
519 int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);
521 This change breaks libavfilter API/ABI.
523 2010-08-11 - r24763 - lavfi 1.32.0 - AVFilterBufferRef
524 Add a type field to AVFilterBufferRef, and move video specific
525 properties to AVFilterBufferRefVideoProps.
527 This change breaks libavfilter API/ABI.
529 2010-08-07 - r24732 - lavfi 1.31.0 - AVFilterLink
530 Rename AVFilterLink fields:
531 AVFilterLink.srcpic -> AVFilterLink.src_buf
532 AVFilterLink.cur_pic -> AVFilterLink.cur_buf
533 AVFilterLink.outpic -> AVFilterLink.out_buf
535 2010-08-07 - r24731 - lavfi 1.30.0
536 Rename functions and fields:
537 avfilter_(un)ref_pic -> avfilter_(un)ref_buffer
538 avfilter_copy_picref_props -> avfilter_copy_buffer_ref_props
539 AVFilterBufferRef.pic -> AVFilterBufferRef.buffer
541 2010-08-07 - r24730 - lavfi 1.29.0 - AVFilterBufferRef
542 Rename AVFilterPicRef to AVFilterBufferRef.
544 2010-08-07 - r24728 - lavfi 1.28.0 - AVFilterBuffer
545 Move format field from AVFilterBuffer to AVFilterPicRef.
547 2010-08-06 - r24709 - lavcore 0.3.0 - av_check_image_size()
548 Deprecate avcodec_check_dimensions() in favor of the function
549 av_check_image_size() defined in libavcore/imgutils.h.
551 2010-07-30 - r24592 - lavfi 1.27.0 - AVFilterBuffer
552 Increase size of the arrays AVFilterBuffer.data and
553 AVFilterBuffer.linesize from 4 to 8.
555 This change breaks libavfilter ABI.
557 2010-07-29 - r24583 - lavcore 0.2.0 - imgutils.h
558 Add functions av_fill_image_linesizes() and
559 av_fill_image_pointers(), declared in libavcore/imgutils.h.
561 2010-07-27 - r24518 - lavcore 0.1.0 - parseutils.h
562 Deprecate av_parse_video_frame_size() and av_parse_video_frame_rate()
563 defined in libavcodec in favor of the newly added functions
564 av_parse_video_size() and av_parse_video_rate() declared in
565 libavcore/parseutils.h.
567 2010-07-23 - r24439 - lavu 50.23.0 - mathematics.h
568 Add the M_PHI constant definition.
570 2010-07-22 - r24424 - lavfi 1.26.0 - media format generalization
571 Add a type field to AVFilterLink.
573 Change the field types:
574 enum PixelFormat format -> int format in AVFilterBuffer
575 enum PixelFormat *formats -> int *formats in AVFilterFormats
576 enum PixelFormat *format -> int format in AVFilterLink
578 Change the function signatures:
579 AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts); ->
580 AVFilterFormats *avfilter_make_format_list(const int *fmts);
582 int avfilter_add_colorspace(AVFilterFormats **avff, enum PixelFormat pix_fmt); ->
583 int avfilter_add_format (AVFilterFormats **avff, int fmt);
585 AVFilterFormats *avfilter_all_colorspaces(void); ->
586 AVFilterFormats *avfilter_all_formats (enum AVMediaType type);
588 This change breaks libavfilter API/ABI.
590 2010-07-21 - r24393 - lavcore 0.0.0
593 2010-07-17 - r24291 - lavfi 1.25.0 - AVFilterBuffer
594 Remove w and h fields from AVFilterBuffer.
596 2010-07-17 - r24284 - lavfi 1.24.0 - AVFilterBuffer
597 Rename AVFilterPic to AVFilterBuffer.
599 2010-07-17 - r24278 - lavf 52.74.0 - url_fskip()
600 Make url_fskip() return an int error code instead of void.
602 2010-07-11 - r24199 - lavc 52.83.0
603 Add AVCodecContext.lpc_type and AVCodecContext.lpc_passes fields.
605 Deprecate AVCodecContext.use_lpc.
607 2010-07-11 - r24185 - lavc 52.82.0 - avsubtitle_free()
608 Add a function for free the contents of a AVSubtitle generated by
609 avcodec_decode_subtitle.
611 2010-07-11 - r24174 - lavu 50.22.0 - bswap.h and intreadwrite.h
612 Make the bswap.h and intreadwrite.h API public.
614 2010-07-08 - r24101 - lavu 50.21.0 - pixdesc.h
615 Rename read/write_line() to av_read/write_image_line().
617 2010-07-07 - r24091 - lavfi 1.21.0 - avfilter_copy_picref_props()
618 Add avfilter_copy_picref_props().
620 2010-07-03 - r24021 - lavc 52.79.0
621 Add FF_COMPLIANCE_UNOFFICIAL and change all instances of
622 FF_COMPLIANCE_INOFFICIAL to use FF_COMPLIANCE_UNOFFICIAL.
624 2010-07-02 - r23985 - lavu 50.20.0 - lfg.h
625 Export av_lfg_init(), av_lfg_get(), av_mlfg_get(), and av_bmg_get() through
628 2010-06-28 - r23835 - lavfi 1.20.1 - av_parse_color()
629 Extend av_parse_color() syntax, make it accept an alpha value specifier and
630 set the alpha value to 255 by default.
632 2010-06-22 - r23706 - lavf 52.71.0 - URLProtocol.priv_data_size, priv_data_class
633 Add priv_data_size and priv_data_class to URLProtocol.
635 2010-06-22 - r23704 - lavf 52.70.0 - url_alloc(), url_connect()
636 Add url_alloc() and url_connect().
638 2010-06-22 - r23702 - lavf 52.69.0 - av_register_protocol2()
639 Add av_register_protocol2(), deprecating av_register_protocol().
641 2010-06-09 - r23551 - lavu 50.19.0 - av_compare_mod()
642 Add av_compare_mod() to libavutil/mathematics.h.
644 2010-06-05 - r23485 - lavu 50.18.0 - eval API
645 Make the eval API public.
647 2010-06-04 - r23461 - lavu 50.17.0 - AV_BASE64_SIZE
648 Add AV_BASE64_SIZE() macro.
650 2010-06-02 - r23421 - lavc 52.73.0 - av_get_codec_tag_string()
651 Add av_get_codec_tag_string().
653 2010-06-01 - r31301 - lsws 0.11.0 - convertPalette API
654 Add sws_convertPalette8ToPacked32() and sws_convertPalette8ToPacked24().
656 2010-05-26 - r23334 - lavc 52.72.0 - CODEC_CAP_EXPERIMENTAL
657 Add CODEC_CAP_EXPERIMENTAL flag.
658 NOTE: this was backported to 0.6
660 2010-05-23 - r23255 - lavu 50.16.0 - av_get_random_seed()
661 Add av_get_random_seed().
663 2010-05-18 - r23161 - lavf 52.63.0 - AVFMT_FLAG_RTP_HINT
664 Add AVFMT_FLAG_RTP_HINT as possible value for AVFormatContext.flags.
665 NOTE: this was backported to 0.6
667 2010-05-09 - r23066 - lavfi 1.20.0 - AVFilterPicRef
668 Add interlaced and top_field_first fields to AVFilterPicRef.
670 ------------------------------8<-------------------------------------
671 0.6 branch was cut here
672 ----------------------------->8--------------------------------------
674 2010-05-01 - r23002 - lavf 52.62.0 - probe function
675 Add av_probe_input_format2 to API, it allows ignoring probe
676 results below given score and returns the actual probe score.
678 2010-04-01 - r22806 - lavf 52.61.0 - metadata API
679 Add a flag for av_metadata_set2() to disable overwriting of
682 2010-04-01 - r22753 - lavc 52.66.0
683 Add avcodec_get_edge_width().
685 2010-03-31 - r22750 - lavc 52.65.0
686 Add avcodec_copy_context().
688 2010-03-31 - r22748 - lavf 52.60.0 - av_match_ext()
689 Make av_match_ext() public.
691 2010-03-31 - r22736 - lavu 50.14.0 - AVMediaType
692 Move AVMediaType enum from libavcodec to libavutil.
694 2010-03-31 - r22735 - lavc 52.64.0 - AVMediaType
695 Define AVMediaType enum, and use it instead of enum CodecType, which
696 is deprecated and will be dropped at the next major bump.
698 2010-03-25 - r22684 - lavu 50.13.0 - av_strerror()
699 Implement av_strerror().
701 2010-03-23 - r22649 - lavc 52.60.0 - av_dct_init()
702 Support DCT-I and DST-I.
704 2010-03-15 - r22540 - lavf 52.56.0 - AVFormatContext.start_time_realtime
705 Add AVFormatContext.start_time_realtime field.
707 2010-03-13 - r22506 - lavfi 1.18.0 - AVFilterPicRef.pos
708 Add AVFilterPicRef.pos field.
710 2010-03-13 - r22501 - lavu 50.12.0 - error.h
711 Move error code definitions from libavcodec/avcodec.h to
712 the new public header libavutil/error.h.
714 2010-03-07 - r22291 - lavc 52.56.0 - avfft.h
715 Add public FFT interface.
717 2010-03-06 - r22251 - lavu 50.11.0 - av_stristr()
720 2010-03-03 - r22174 - lavu 50.10.0 - av_tree_enumerate()
721 Add av_tree_enumerate().
723 2010-02-07 - r21673 - lavu 50.9.0 - av_compare_ts()
726 2010-02-05 - r30513 - lsws 0.10.0 - sws_getCoefficients()
727 Add sws_getCoefficients().
729 2010-02-01 - r21587 - lavf 52.50.0 - metadata API
730 Add a list of generic tag names, change 'author' -> 'artist',
733 2010-01-30 - r21545 - lavu 50.8.0 - av_get_pix_fmt()
734 Add av_get_pix_fmt().
736 2010-01-21 - r30381 - lsws 0.9.0 - sws_scale()
737 Change constness attributes of sws_scale() parameters.
739 2010-01-10 - r21121 - lavfi 1.15.0 - avfilter_graph_config_links()
740 Add a log_ctx parameter to avfilter_graph_config_links().
742 2010-01-07 - r30236 - lsws 0.8.0 - sws_isSupported{In,Out}put()
743 Add sws_isSupportedInput() and sws_isSupportedOutput() functions.
745 2010-01-06 - r21035 - lavfi 1.14.0 - avfilter_add_colorspace()
746 Change the avfilter_add_colorspace() signature, make it accept an
747 (AVFilterFormats **) rather than an (AVFilterFormats *) as before.
749 2010-01-03 - r21007 - lavfi 1.13.0 - avfilter_add_colorspace()
750 Add avfilter_add_colorspace().
752 2010-01-02 - r20998 - lavf 52.46.0 - av_match_ext()
753 Add av_match_ext(), it should be used in place of match_ext().
755 2010-01-01 - r20991 - lavf 52.45.0 - av_guess_format()
756 Add av_guess_format(), it should be used in place of guess_format().
758 2009-12-13 - r20834 - lavf 52.43.0 - metadata API
759 Add av_metadata_set2(), AV_METADATA_DONT_STRDUP_KEY and
760 AV_METADATA_DONT_STRDUP_VAL.
762 2009-12-13 - r20829 - lavu 50.7.0 - avstring.h API
765 2009-12-13 - r20826 - lavc 52.42.0 - AVStream
768 2009-12-12 - r20808 - lavu 50.6.0 - av_bmg_next()
769 Introduce the av_bmg_next() function.
771 2009-12-05 - r20734 - lavfi 1.12.0 - avfilter_draw_slice()
772 Add a slice_dir parameter to avfilter_draw_slice().
774 2009-11-26 - r20611 - lavfi 1.11.0 - AVFilter
775 Remove the next field from AVFilter, this is not anymore required.
777 2009-11-25 - r20607 - lavfi 1.10.0 - avfilter_next()
778 Introduce the avfilter_next() function.
780 2009-11-25 - r20605 - lavfi 1.9.0 - avfilter_register()
781 Change the signature of avfilter_register() to make it return an
782 int. This is required since now the registration operation may fail.
784 2009-11-25 - r20603 - lavu 50.5.0 - pixdesc.h API
785 Make the pixdesc.h API public.
787 2009-10-27 - r20385 - lavfi 1.5.0 - AVFilter.next
788 Add a next field to AVFilter, this is used for simplifying the
789 registration and management of the registered filters.
791 2009-10-23 - r20356 - lavfi 1.4.1 - AVFilter.description
792 Add a description field to AVFilter.
794 2009-10-19 - r20302 - lavfi 1.3.0 - avfilter_make_format_list()
795 Change the interface of avfilter_make_format_list() from
796 avfilter_make_format_list(int n, ...) to
797 avfilter_make_format_list(enum PixelFormat *pix_fmts).
799 2009-10-18 - r20272 - lavfi 1.0.0 - avfilter_get_video_buffer()
800 Make avfilter_get_video_buffer() recursive and add the w and h
803 2009-10-07 - r20189 - lavfi 0.5.1 - AVFilterPic
804 Add w and h fields to AVFilterPic.
806 2009-06-22 - r19250 - lavf 52.34.1 - AVFormatContext.packet_size
807 This is now an unsigned int instead of a signed int.
809 2009-06-19 - r19222 - lavc 52.32.0 - AVSubtitle.pts
810 Add a pts field to AVSubtitle which gives the subtitle packet pts
811 in AV_TIME_BASE. Some subtitle de-/encoders (e.g. XSUB) will
812 not work right without this.
814 2009-06-03 - r19078 - lavc 52.30.2 - AV_PKT_FLAG_KEY
815 PKT_FLAG_KEY has been deprecated and will be dropped at the next
816 major version. Use AV_PKT_FLAG_KEY instead.
818 2009-06-01 - r19025 - lavc 52.30.0 - av_lockmgr_register()
819 av_lockmgr_register() can be used to register a callback function
820 that lavc (and in the future, libraries that depend on lavc) can use
821 to implement mutexes. The application should provide a callback function
822 that implements the AV_LOCK_* operations described in avcodec.h.
823 When the lock manager is registered, FFmpeg is guaranteed to behave
824 correctly in a multi-threaded application.
826 2009-04-30 - r18719 - lavc 52.28.0 - av_free_packet()
827 av_free_packet() is no longer an inline function. It is now exported.
829 2009-04-11 - r18431 - lavc 52.25.0 - deprecate av_destruct_packet_nofree()
830 Please use NULL instead. This has been supported since r16506
831 (lavf > 52.23.1, lavc > 52.10.0).
833 2009-04-07 - r18351 - lavc 52.23.0 - avcodec_decode_video/audio/subtitle
834 The old decoding functions are deprecated, all new code should use the
835 new functions avcodec_decode_video2(), avcodec_decode_audio3() and
836 avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt
837 argument instead of a const uint8_t *buf / int buf_size pair.
839 2009-04-03 - r18321 - lavu 50.3.0 - av_fifo_space()
840 Introduce the av_fifo_space() function.
842 2009-04-02 - r18317 - lavc 52.23.0 - AVPacket
843 Move AVPacket declaration from libavformat/avformat.h to
844 libavcodec/avcodec.h.
846 2009-03-22 - r18163 - lavu 50.2.0 - RGB32 pixel formats
847 Convert the pixel formats PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR,
848 PIX_FMT_BGRA, which were defined as macros, into enum PixelFormat values.
849 Conversely PIX_FMT_RGB32, PIX_FMT_RGB32_1, PIX_FMT_BGR32 and
850 PIX_FMT_BGR32_1 are now macros.
851 avcodec_get_pix_fmt() now recognizes the "rgb32" and "bgr32" aliases.
852 Re-sort the enum PixelFormat list accordingly.
853 This change breaks API/ABI backward compatibility.
855 2009-03-22 - r18133 - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants
856 Add the enum PixelFormat values:
857 PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,
858 PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.
860 2009-03-21 - r18116 - lavu 50.0.0 - av_random*
861 The Mersenne Twister PRNG implemented through the av_random* functions
862 was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions
865 2009-03-08 - r17869 - lavu 50.0.0 - AVFifoBuffer
866 av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped
867 and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write
868 and av_fifo_realloc2.
869 In addition, the order of the function arguments of av_fifo_generic_read
870 was changed to match av_fifo_generic_write.
871 The AVFifoBuffer/struct AVFifoBuffer may only be used in an opaque way by
872 applications, they may not use sizeof() or directly access members.
874 2009-03-01 - r17682 - lavf 52.31.0 - Generic metadata API
875 Introduce a new metadata API (see av_metadata_get() and friends).
876 The old API is now deprecated and should not be used anymore. This especially
877 includes the following structure fields:
878 - AVFormatContext.title
879 - AVFormatContext.author
880 - AVFormatContext.copyright
881 - AVFormatContext.comment
882 - AVFormatContext.album
883 - AVFormatContext.year
884 - AVFormatContext.track
885 - AVFormatContext.genre
888 - AVProgram.provider_name