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: 2012-01-27
9 libpostproc: 2011-04-18 (deprecated, to be removed later)
10 libswscale: 2011-06-20
14 API changes, most recent first:
16 2012-02-01 - 316fc74 - lavc 54.01.0
17 Add av_fast_padded_malloc() as alternative for av_realloc() when aligned
18 memory is required. The buffer will always have FF_INPUT_BUFFER_PADDING_SIZE
19 zero-padded bytes at the end.
21 2012-01-31 - dd6d3b0 - lavf 54.01.0
22 Add avformat_get_riff_video_tags() and avformat_get_riff_audio_tags().
24 2012-01-31 - af08d9a - lavc 54.01.0
25 Add avcodec_is_open() function.
27 2012-01-30 - 8b93312 - lavu 51.22.0 - intfloat.h
28 Add a new installed header libavutil/intfloat.h with int/float punning
31 2012-01-25 - lavf 53.22.0
32 f1caf01 Allow doing av_write_frame(ctx, NULL) for flushing possible
33 buffered data within a muxer. Added AVFMT_ALLOW_FLUSH for
34 muxers supporting it (av_write_frame makes sure it is called
35 only for muxers with this flag).
37 2012-01-15 - lavc 53.34.0
38 New audio encoding API:
39 b2c75b6 Add CODEC_CAP_VARIABLE_FRAME_SIZE capability for use by audio
41 5ee5fa0 Add avcodec_fill_audio_frame() as a convenience function.
42 b2c75b6 Add avcodec_encode_audio2() and deprecate avcodec_encode_audio().
43 Add AVCodec.encode2().
45 2012-01-12 - 3167dc9 - lavfi 2.15.0
46 Add a new installed header -- libavfilter/version.h -- with version macros.
48 2011-01-03 - b73ec05 - lavu 51.21.0
51 2011-12-25 - lavfi 2.14.0
52 e1d9dbf Add a new installed header - buffersrc.h
53 It contains a new function av_buffersrc_buffer() that allows passing
54 frames to the 'buffer' filter, but unlike av_vsrc_buffer_add_frame()
55 it allows for direct rendering.
56 1c9e340 Add avfilter_copy_frame_props() for copying properties from
57 AVFrame to AVFilterBufferRef.
59 2011-12-25 - lavc 53.31.0
60 Add the following new fields to AVFrame:
61 b58dbb5 sample_aspect_ratio
65 2011-12-18 - 8400b12 - lavc 53.28.1
66 Deprecate AVFrame.age. The field is unused.
68 2011-12-12 - 5266045 - lavf 53.17.0
69 Add avformat_close_input().
70 Deprecate av_close_input_file() and av_close_input_stream().
72 2011-12-02 - 0eea212 - lavc 53.25.0
73 Add nb_samples and extended_data fields to AVFrame.
74 Deprecate AVCODEC_MAX_AUDIO_FRAME_SIZE.
75 Deprecate avcodec_decode_audio3() in favor of avcodec_decode_audio4().
76 avcodec_decode_audio4() writes output samples to an AVFrame, which allows
77 audio decoders to use get_buffer().
79 2011-12-04 - 560f773 - lavc 53.24.0
80 Change AVFrame.data[4]/base[4]/linesize[4]/error[4] to [8] at next major bump.
81 Change AVPicture.data[4]/linesize[4] to [8] at next major bump.
82 Change AVCodecContext.error[4] to [8] at next major bump.
83 Add AV_NUM_DATA_POINTERS to simplify the bump transition.
85 2011-11-23 - bbb46f3 - lavu 51.18.0
86 Add av_samples_get_buffer_size(), av_samples_fill_arrays(), and
87 av_samples_alloc(), to samplefmt.h.
89 2011-11-23 - 8889cc4 - lavu 51.17.0
90 Add planar sample formats and av_sample_fmt_is_planar() to samplefmt.h.
92 2011-11-19 - f3a29b7 - lavc 53.21.0
93 Move some AVCodecContext fields to a new private struct, AVCodecInternal,
94 which is accessed from a new field, AVCodecContext.internal.
96 AVCodecContext.internal_buffer --> AVCodecInternal.buffer
97 AVCodecContext.internal_buffer_count --> AVCodecInternal.buffer_count
98 AVCodecContext.is_copy --> AVCodecInternal.is_copy
100 2011-11-16 - 6270671 - lavu 51.16.0
103 2011-11-13 - lavf 53.15.0
104 New interrupt callback API, allowing per-AVFormatContext/AVIOContext
106 6aa0b98 Add AVIOInterruptCB struct and the interrupt_callback field to
108 1dee0ac Add avio_open2() with additional parameters. Those are
109 an interrupt callback and an options AVDictionary.
110 This will allow passing AVOptions to protocols after lavf
113 2011-11-06 - ba04ecf - lavu 51.14.0
114 Add av_strcasecmp() and av_strncasecmp() to avstring.h.
116 2011-11-06 - 07b172f - lavu 51.13.0
117 Add av_toupper()/av_tolower()
119 2011-11-05 - b6d08f4 - lavf 53.13.0
120 Add avformat_network_init()/avformat_network_deinit()
122 2011-10-27 - 512557b - lavc 53.15.0
123 Remove avcodec_parse_frame.
124 Deprecate AVCodecContext.parse_only and CODEC_CAP_PARSE_ONLY.
126 2011-10-19 - 569129a - lavf 53.10.0
127 Add avformat_new_stream(). Deprecate av_new_stream().
129 2011-10-13 - b631fba - lavf 53.9.0
130 Add AVFMT_NO_BYTE_SEEK AVInputFormat flag.
132 2011-10-12 - lavu 51.12.0
133 AVOptions API rewrite.
135 - 145f741 FF_OPT_TYPE* renamed to AV_OPT_TYPE_*
136 - new setting/getting functions with slightly different semantics:
137 dac66da av_set_string3 -> av_opt_set
138 av_set_double -> av_opt_set_double
139 av_set_q -> av_opt_set_q
140 av_set_int -> av_opt_set_int
142 41d9d51 av_get_string -> av_opt_get
143 av_get_double -> av_opt_get_double
144 av_get_q -> av_opt_get_q
145 av_get_int -> av_opt_get_int
147 - 8c5dcaa trivial rename av_next_option -> av_opt_next
148 - 641c7af new functions - av_opt_child_next, av_opt_child_class_next
151 2011-09-03 - fb4ca26 - lavc 53.10.0
154 Add {avcodec,avformat,sws}_get_class().
156 2011-09-03 - c11fb82 - lavu 51.10.0
157 Add AV_OPT_SEARCH_FAKE_OBJ flag for av_opt_find() function.
159 2011-08-26 - lavu 51.9.0
160 - f2011ed Add av_fifo_peek2(), deprecate av_fifo_peek().
161 - add41de..abc78a5 Do not include intfloat_readwrite.h,
162 mathematics.h, rational.h, pixfmt.h, or log.h from avutil.h.
164 2011-08-16 - 48f9e45 - lavf 53.4.0
165 Add avformat_query_codec().
167 2011-08-16 - bca06e7 - lavc 53.8.0
168 Add avcodec_get_type().
170 2011-08-06 - 2f63440 - lavf 53.4.0
171 Add error_recognition to AVFormatContext.
173 2011-08-02 - 9d39cbf - lavc 53.7.1
174 Add AV_PKT_FLAG_CORRUPT AVPacket flag.
176 2011-07-10 - a67c061 - lavf 53.3.0
177 Add avformat_find_stream_info(), deprecate av_find_stream_info().
179 2011-07-10 - 0b950fe - lavc 53.6.0
180 Add avcodec_open2(), deprecate avcodec_open().
181 Add avcodec_alloc_context3. Deprecate avcodec_alloc_context() and
182 avcodec_alloc_context2().
184 2011-06-23 - 67e9ae1 - lavu 51.8.0 - attributes.h
185 Add av_printf_format().
187 2011-06-16 - 05e84c9, 25de595 - lavf 53.2.0 - avformat.h
188 Add avformat_open_input and avformat_write_header().
189 Deprecate av_open_input_stream, av_open_input_file,
190 AVFormatParameters and av_write_header.
192 2011-06-16 - 7e83e1c, dc59ec5 - lavu 51.7.0 - opt.h
193 Add av_opt_set_dict() and av_opt_find().
194 Deprecate av_find_opt().
195 Add AV_DICT_APPEND flag.
197 2011-06-10 - cb7c11c - lavu 51.6.0 - opt.h
198 Add av_opt_flag_is_set().
200 2011-06-08 - d9f80ea - lavu 51.5.0 - AVMetadata
201 Move AVMetadata from lavf to lavu and rename it to
202 AVDictionary -- new installed header dict.h.
203 All av_metadata_* functions renamed to av_dict_*.
205 2011-06-07 - a6703fa - lavu 51.4.0 - av_get_bytes_per_sample()
206 Add av_get_bytes_per_sample() in libavutil/samplefmt.h.
207 Deprecate av_get_bits_per_sample_fmt().
209 2011-06-05 - b39b062 - lavu 51.3.0 - opt.h
210 Add av_opt_free convenience function.
212 2011-05-28 - 0420bd7 - lavu 51.2.0 - pixdesc.h
213 Add av_get_pix_fmt_name() in libavutil/pixdesc.h, and deprecate
214 avcodec_get_pix_fmt_name() in libavcodec/avcodec.h in its favor.
216 2011-05-25 - 30315a8 - lavf 53.1.0 - avformat.h
217 Add fps_probe_size to AVFormatContext.
219 2011-05-18 - 64150ff - lavc 53.4.0 - AVCodecContext.request_sample_fmt
220 Add request_sample_fmt field to AVCodecContext.
222 2011-05-10 - 188dea1 - lavc 53.3.0 - avcodec.h
223 Deprecate AVLPCType and the following fields in
224 AVCodecContext: lpc_coeff_precision, prediction_order_method,
225 min_partition_order, max_partition_order, lpc_type, lpc_passes.
226 Corresponding FLAC encoder options should be used instead.
228 2011-04-26 - bebe72f - lavu 51.1.0 - avutil.h
229 Add AVPictureType enum and av_get_picture_type_char(), deprecate
230 FF_*_TYPE defines and av_get_pict_type_char() defined in
231 libavcodec/avcodec.h.
233 2011-04-26 - 10d3940 - lavfi 2.3.0 - avfilter.h
234 Add pict_type and key_frame fields to AVFilterBufferRefVideo.
236 2011-04-26 - 7a11c82 - lavfi 2.2.0 - vsrc_buffer
237 Add sample_aspect_ratio fields to vsrc_buffer arguments
239 2011-04-21 - 94f7451 - lavc 53.1.0 - avcodec.h
240 Add CODEC_CAP_SLICE_THREADS for codecs supporting sliced threading.
242 2011-04-15 - lavc 52.120.0 - avcodec.h
243 AVPacket structure got additional members for passing side information:
244 4de339e introduce side information for AVPacket
245 2d8591c make containers pass palette change in AVPacket
247 2011-04-12 - lavf 52.107.0 - avio.h
248 Avio cleanup, part II - deprecate the entire URLContext API:
249 175389c add avio_check as a replacement for url_exist
250 ff1ec0c add avio_pause and avio_seek_time as replacements
251 for _av_url_read_fseek/fpause
252 cdc6a87 deprecate av_protocol_next(), avio_enum_protocols
253 should be used instead.
254 80c6e23 rename url_set_interrupt_cb->avio_set_interrupt_cb.
255 f87b1b3 rename open flags: URL_* -> AVIO_*
256 f8270bb add avio_enum_protocols.
257 5593f03 deprecate URLProtocol.
258 c486dad deprecate URLContext.
259 026e175 deprecate the typedef for URLInterruptCB
260 8e76a19 deprecate av_register_protocol2.
261 b840484 deprecate URL_PROTOCOL_FLAG_NESTED_SCHEME
262 1305d93 deprecate av_url_read_seek
263 fa104e1 deprecate av_url_read_pause
264 727c7aa deprecate url_get_filename().
265 5958df3 deprecate url_max_packet_size().
266 1869ea0 deprecate url_get_file_handle().
267 32a97d4 deprecate url_filesize().
268 e52a914 deprecate url_close().
269 58a48c6 deprecate url_seek().
270 925e908 deprecate url_write().
271 dce3756 deprecate url_read_complete().
272 bc371ac deprecate url_read().
273 0589da0 deprecate url_open().
274 62eaaea deprecate url_connect.
275 5652bb9 deprecate url_alloc.
276 333e894 deprecate url_open_protocol
277 e230705 deprecate url_poll and URLPollEntry
279 2011-04-10 - lavu 50.40.0 - pixfmt.h
280 Add PIX_FMT_BGR48LE and PIX_FMT_BGR48BE pixel formats
282 2011-04-08 - lavf 52.106.0 - avformat.h
283 Minor avformat.h cleanup:
284 a9bf9d8 deprecate av_guess_image2_codec
285 c3675df rename avf_sdp_create->av_sdp_create
287 2011-04-03 - lavf 52.105.0 - avio.h
288 Large-scale renaming/deprecating of AVIOContext-related functions:
289 724f6a0 deprecate url_fdopen
290 403ee83 deprecate url_open_dyn_packet_buf
291 6dc7d80 rename url_close_dyn_buf -> avio_close_dyn_buf
292 b92c545 rename url_open_dyn_buf -> avio_open_dyn_buf
293 8978fed introduce an AVIOContext.seekable field as a replacement for
294 AVIOContext.is_streamed and url_is_streamed()
295 b64030f deprecate get_checksum()
296 4c4427a deprecate init_checksum()
297 4ec153b deprecate udp_set_remote_url/get_local_port
298 933e90a deprecate av_url_read_fseek/fpause
299 8d9769a deprecate url_fileno
300 b7f2fdd rename put_flush_packet -> avio_flush
301 35f1023 deprecate url_close_buf
302 83fddae deprecate url_open_buf
303 d9d86e0 rename url_fprintf -> avio_printf
304 59f65d9 deprecate url_setbufsize
305 3e68b3b deprecate url_ferror
306 66e5b1d deprecate url_feof
307 e8bb2e2 deprecate url_fget_max_packet_size
308 76aa876 rename url_fsize -> avio_size
309 e519753 deprecate url_fgetc
310 655e45e deprecate url_fgets
311 a2704c9 rename url_ftell -> avio_tell
312 e16ead0 deprecate get_strz() in favor of avio_get_str
313 0300db8,2af07d3 rename url_fskip -> avio_skip
314 6b4aa5d rename url_fseek -> avio_seek
315 61840b4 deprecate put_tag
316 22a3212 rename url_fopen/fclose -> avio_open/close.
317 0ac8e2b deprecate put_nbyte
318 77eb550 rename put_byte -> avio_w8
319 put_[b/l]e<type> -> avio_w[b/l]<type>
320 put_buffer -> avio_write
321 b7effd4 rename get_byte -> avio_r8,
322 get_[b/l]e<type> -> avio_r[b/l]<type>
323 get_buffer -> avio_read
324 b3db9ce deprecate get_partial_buffer
325 8d9ac96 rename av_alloc_put_byte -> avio_alloc_context
327 2011-03-25 - 34b47d7 - lavc 52.115.0 - AVCodecContext.audio_service_type
328 Add audio_service_type field to AVCodecContext.
330 2011-03-02 - 863c471 - lavf 52.103.0 - av_pkt_dump2, av_pkt_dump_log2
331 Add new functions av_pkt_dump2, av_pkt_dump_log2 that uses the
332 source stream timebase for outputting timestamps. Deprecate
333 av_pkt_dump and av_pkt_dump_log.
335 2011-02-20 - e731b8d - lavf 52.102.0 - avio.h
336 * e731b8d - rename init_put_byte() to ffio_init_context(), deprecating the
337 original, and move it to a private header so it is no longer
338 part of our public API. Instead, use av_alloc_put_byte().
339 * ae628ec - rename ByteIOContext to AVIOContext.
341 2011-02-16 - 09d171b - lavf 52.101.0 - avformat.h
342 lavu 52.39.0 - parseutils.h
343 * 610219a - Add av_ prefix to dump_format().
344 * f6c7375 - Replace parse_date() in lavf with av_parse_time() in lavu.
345 * ab0287f - Move find_info_tag from lavf to lavu and add av_prefix to it.
347 2011-02-15 - lavu 52.38.0 - merge libavcore
348 libavcore is merged back completely into libavutil
350 2011-02-10 - 55bad0c - lavc 52.113.0 - vbv_delay
351 Add vbv_delay field to AVCodecContext
353 2011-02-14 - 24a83bd - lavf 52.100.0 - AV_DISPOSITION_CLEAN_EFFECTS
354 Add AV_DISPOSITION_CLEAN_EFFECTS disposition flag.
356 2011-02-14 - 910b5b8 - lavfi 1.76.0 - AVFilterLink sample_aspect_ratio
357 Add sample_aspect_ratio field to AVFilterLink.
359 2011-02-10 - 12c14cd - lavf 52.99.0 - AVStream.disposition
360 Add AV_DISPOSITION_HEARING_IMPAIRED and AV_DISPOSITION_VISUAL_IMPAIRED.
362 2011-02-09 - 5592734 - lavc 52.112.0 - avcodec_thread_init()
363 Deprecate avcodec_thread_init()/avcodec_thread_free() use; instead
364 set thread_count before calling avcodec_open.
366 2011-02-09 - 778b08a - lavc 52.111.0 - threading API
367 Add CODEC_CAP_FRAME_THREADS with new restrictions on get_buffer()/
368 release_buffer()/draw_horiz_band() callbacks for appropriate codecs.
369 Add thread_type and active_thread_type fields to AVCodecContext.
371 2011-02-08 - 3940caa - lavf 52.98.0 - av_probe_input_buffer
372 Add av_probe_input_buffer() to avformat.h for probing format from a
375 2011-02-06 - fe174fc - lavf 52.97.0 - avio.h
376 Add flag for non-blocking protocols: URL_FLAG_NONBLOCK
378 2011-02-04 - f124b08 - lavf 52.96.0 - avformat_free_context()
379 Add avformat_free_context() in avformat.h.
381 2011-02-03 - f5b82f4 - lavc 52.109.0 - add CODEC_ID_PRORES
382 Add CODEC_ID_PRORES to avcodec.h.
384 2011-02-03 - fe9a3fb - lavc 52.109.0 - H.264 profile defines
385 Add defines for H.264 * Constrained Baseline and Intra profiles
387 2011-02-02 - lavf 52.95.0
388 * 50196a9 - add a new installed header version.h.
389 * 4efd5cf, dccbd97, 93b78d1 - add several variants of public
390 avio_{put,get}_str* functions. Deprecate corresponding semi-public
393 2011-02-02 - dfd2a00 - lavu 50.37.0 - log.h
396 2011-01-15 - r26374 - lavfi 1.74.0 - AVFilterBufferRefAudioProps
397 Rename AVFilterBufferRefAudioProps.samples_nb to nb_samples.
399 2011-01-14 - r26330 - lavf 52.93.0 - av_metadata_copy()
400 Add av_metadata_copy() in avformat.h.
402 2011-01-07 - r26262 - lavc 52.107.0 - deprecate reordered_opaque
403 Deprecate reordered_opaque in favor of pkt_pts/dts.
405 2011-01-07 - r26261 - lavc 52.106.0 - pkt_dts
406 Add pkt_dts to AVFrame, this will in the future allow multithreading decoders
409 2011-01-07 - r26260 - lavc 52.105.0 - pkt_pts
410 Add pkt_pts to AVFrame.
412 2011-01-07 - r26259 - lavc 52.104.0 - av_get_profile_name()
413 Add av_get_profile_name to libavcodec/avcodec.h.
415 2010-12-27 - r26108 - lavfi 1.71.0 - AV_PERM_NEG_LINESIZES
416 Add AV_PERM_NEG_LINESIZES in avfilter.h.
418 2010-12-27 - r26104 - lavf 52.91.0 - av_find_best_stream()
419 Add av_find_best_stream to libavformat/avformat.h.
421 2010-12-27 - r26103 - lavf 52.90.0
422 Add AVFMT_NOSTREAMS flag for formats with no streams,
423 like e.g. text metadata.
425 2010-12-22 - r26073 - lavu 50.36.0 - file.h
426 Add functions av_file_map() and av_file_unmap() in file.h.
428 2010-12-19 - r26056 - lavu 50.35.0 - error.h
429 Add "not found" error codes:
430 AVERROR_DEMUXER_NOT_FOUND
431 AVERROR_MUXER_NOT_FOUND
432 AVERROR_DECODER_NOT_FOUND
433 AVERROR_ENCODER_NOT_FOUND
434 AVERROR_PROTOCOL_NOT_FOUND
435 AVERROR_FILTER_NOT_FOUND
436 AVERROR_BSF_NOT_FOUND
437 AVERROR_STREAM_NOT_FOUND
439 2010-12-09 - r25923 - lavcore 0.16.0 - avcore.h
440 Move AV_NOPTS_VALUE, AV_TIME_BASE, AV_TIME_BASE_Q symbols from
441 avcodec.h to avcore.h.
443 2010-12-04 - r25886 - lavc 52.98.0 - CODEC_CAP_NEG_LINESIZES
444 Add CODEC_CAP_NEG_LINESIZES codec capability flag in avcodec.h.
446 2010-12-04 - r25879 - lavu 50.34.0 - av_get_pix_fmt_string()
447 Deprecate avcodec_pix_fmt_string() in favor of
448 pixdesc.h/av_get_pix_fmt_string().
450 2010-12-04 - r25878 - lavcore 0.15.0 - av_image_alloc()
451 Add av_image_alloc() to libavcore/imgutils.h.
453 2010-12-02 - r25862 - lavfi 1.67.0 - avfilter_graph_create_filter()
454 Add function avfilter_graph_create_filter() in avfiltergraph.h.
456 2010-11-25 - r25826 - lavfi 1.65.0 - avfilter_get_video_buffer_ref_from_arrays()
457 Add function avfilter_get_video_buffer_ref_from_arrays() in
460 2010-11-21 - r25787 - lavcore 0.14.0 - audioconvert.h
461 Add a public audio channel API in audioconvert.h, and deprecate the
462 corresponding functions in libavcodec:
463 avcodec_get_channel_name()
464 avcodec_get_channel_layout()
465 avcodec_get_channel_layout_string()
466 avcodec_channel_layout_num_channels()
467 and the CH_* macros defined in libavcodec/avcodec.h.
469 2010-11-21 - r25777 - lavf 52.85.0 - avformat.h
470 Add av_append_packet().
472 2010-11-21 - r25776 - lavc 52.97.0 - avcodec.h
473 Add av_grow_packet().
475 2010-11-17 - r25761 - lavcore 0.13.0 - parseutils.h
476 Add av_parse_color() declared in libavcore/parseutils.h.
478 2010-11-13 - r25745 - lavc 52.95.0 - AVCodecContext
479 Add AVCodecContext.subtitle_header and AVCodecContext.subtitle_header_size
482 2010-11-13 - r25740 - lavfi 1.62.0 - avfiltergraph.h
483 Make avfiltergraph.h public.
485 2010-11-13 - r25737 - lavfi 1.61.0 - avfiltergraph.h
486 Remove declarations from avfiltergraph.h for the functions:
487 avfilter_graph_check_validity()
488 avfilter_graph_config_links()
489 avfilter_graph_config_formats()
490 which are now internal.
491 Use avfilter_graph_config() instead.
493 2010-11-08 - r25708 - lavu 50.33.0 - eval.h
495 av_parse_and_eval_expr(),
499 in favor of the functions:
500 av_expr_parse_and_eval(),
505 2010-11-08 - r25707 - lavfi 1.59.0 - avfilter_free()
506 Rename avfilter_destroy() to avfilter_free().
507 This change breaks libavfilter API/ABI.
509 2010-11-07 - r25705 - lavfi 1.58.0 - avfiltergraph.h
510 Remove graphparser.h header, move AVFilterInOut and
511 avfilter_graph_parse() declarations to libavfilter/avfiltergraph.h.
513 2010-11-07 - r25700 - lavfi 1.57.0 - AVFilterInOut
514 Rename field AVFilterInOut.filter to AVFilterInOut.filter_ctx.
515 This change breaks libavfilter API.
517 2010-11-04 - r25674 - lavfi 1.56.0 - avfilter_graph_free()
518 Rename avfilter_graph_destroy() to avfilter_graph_free().
519 This change breaks libavfilter API/ABI.
521 2010-11-04 - r25673 - lavfi 1.55.0 - avfilter_graph_alloc()
522 Add avfilter_graph_alloc() to libavfilter/avfiltergraph.h.
524 2010-11-02 - r25654 - lavcore 0.12.0 - av_get_bits_per_sample_fmt()
525 Add av_get_bits_per_sample_fmt() to libavcore/samplefmt.h and
526 deprecate av_get_bits_per_sample_format().
528 2010-11-02 - r25653 - lavcore 0.11.0 - samplefmt.h
529 Add sample format functions in libavcore/samplefmt.h:
530 av_get_sample_fmt_name(),
532 av_get_sample_fmt_string(),
533 and deprecate the corresponding libavcodec/audioconvert.h functions:
534 avcodec_get_sample_fmt_name(),
535 avcodec_get_sample_fmt(),
536 avcodec_sample_fmt_string().
538 2010-11-02 - r25652 - lavcore 0.10.0 - samplefmt.h
539 Define enum AVSampleFormat in libavcore/samplefmt.h, deprecate enum
542 2010-10-16 - r25502 - lavfi 1.52.0 - avfilter_graph_config()
543 Add the function avfilter_graph_config() in avfiltergraph.h.
545 2010-10-15 - r25493 - lavf 52.83.0 - metadata API
546 Change demuxers to export metadata in generic format and
547 muxers to accept generic format. Deprecate the public
550 2010-10-10 - r25441 - lavfi 1.49.0 - AVFilterLink.time_base
551 Add time_base field to AVFilterLink.
553 2010-09-27 - r25236 - lavu 50.31.0 - av_set_options_string()
554 Move av_set_options_string() from libavfilter/parseutils.h to
557 2010-09-27 - r25227 - lavfi 1.47.0 - AVFilterLink
558 Make the AVFilterLink fields srcpad and dstpad store the pointers to
559 the source and destination pads, rather than their indexes.
561 2010-09-27 - r25225 - lavu 50.30.0 - av_get_token()
562 Move av_get_token() from libavfilter/parseutils.h to
563 libavutil/avstring.h.
565 2010-09-26 - r32368 - lsws 0.12.0 - swscale.h
566 Add the functions sws_alloc_context() and sws_init_context().
568 2010-09-26 - r25210 - lavu 50.29.0 - opt.h
569 Move libavcodec/opt.h to libavutil/opt.h.
571 2010-09-24 - r25174 - lavu 50.28.0 - av_log_set_flags()
572 Default of av_log() changed due to many problems to the old no repeat
573 detection. Read the docs of AV_LOG_SKIP_REPEATED in log.h before
574 enabling it for your app!.
576 2010-09-24 - r25167 - lavc 52.90.0 - av_opt_show2()
577 Deprecate av_opt_show() in favor or av_opt_show2().
579 2010-09-14 - r25120 - lavu 50.27.0 - av_popcount()
580 Add av_popcount() to libavutil/common.h.
582 2010-09-08 - r25076 - lavu 50.26.0 - av_get_cpu_flags()
583 Add av_get_cpu_flags().
585 2010-09-07 - r25067 - lavcore 0.9.0 - av_image_copy()
588 2010-09-07 - r25064 - lavcore 0.8.0 - av_image_copy_plane()
589 Add av_image_copy_plane().
591 2010-09-07 - r25057 - lavcore 0.7.0 - imgutils.h
592 Adopt hierarchical scheme for the imgutils.h function names,
593 deprecate the old names.
595 2010-09-04 - r25040 - lavu 50.25.0 - AV_CPU_FLAG_*
596 Deprecate the FF_MM_* flags defined in libavcodec/avcodec.h in favor
597 of the AV_CPU_FLAG_* flags defined in libavutil/cpu.h.
599 2010-08-26 - r24936 - lavc 52.87.0 - avcodec_get_channel_layout()
600 Add avcodec_get_channel_layout() in audioconvert.h.
602 2010-08-20 - r24851 - lavcore 0.6.0 - av_fill_image_max_pixsteps()
603 Rename av_fill_image_max_pixstep() to av_fill_image_max_pixsteps().
605 2010-08-18 - r24827 - lavcore 0.5.0 - av_fill_image_max_pixstep()
606 Add av_fill_image_max_pixstep() in imgutils.h.
608 2010-08-17 - r24814 - lavu 50.24.0 - AV_NE()
611 2010-08-17 - r24811 - lavfi 1.36.0 - audio framework
612 Implement AVFilterBufferRefAudioProps struct for audio properties,
613 get_audio_buffer(), filter_samples() functions and related changes.
615 2010-08-12 - r24787 - lavcore 0.4.0 - av_get_image_linesize()
616 Add av_get_image_linesize() in imgutils.h.
618 2010-08-11 - r24773 - lavfi 1.34.0 - AVFilterBufferRef
619 Resize data and linesize arrays in AVFilterBufferRef to 8.
621 This change breaks libavfilter API/ABI.
623 2010-08-11 - r24768 - lavc 52.85.0 - av_picture_data_copy()
624 Add av_picture_data_copy in avcodec.h.
626 2010-08-11 - r24765 - lavfi 1.33.0 - avfilter_open()
627 Change avfilter_open() signature:
628 AVFilterContext *avfilter_open(AVFilter *filter, const char *inst_name) ->
629 int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);
631 This change breaks libavfilter API/ABI.
633 2010-08-11 - r24763 - lavfi 1.32.0 - AVFilterBufferRef
634 Add a type field to AVFilterBufferRef, and move video specific
635 properties to AVFilterBufferRefVideoProps.
637 This change breaks libavfilter API/ABI.
639 2010-08-07 - r24732 - lavfi 1.31.0 - AVFilterLink
640 Rename AVFilterLink fields:
641 AVFilterLink.srcpic -> AVFilterLink.src_buf
642 AVFilterLink.cur_pic -> AVFilterLink.cur_buf
643 AVFilterLink.outpic -> AVFilterLink.out_buf
645 2010-08-07 - r24731 - lavfi 1.30.0
646 Rename functions and fields:
647 avfilter_(un)ref_pic -> avfilter_(un)ref_buffer
648 avfilter_copy_picref_props -> avfilter_copy_buffer_ref_props
649 AVFilterBufferRef.pic -> AVFilterBufferRef.buffer
651 2010-08-07 - r24730 - lavfi 1.29.0 - AVFilterBufferRef
652 Rename AVFilterPicRef to AVFilterBufferRef.
654 2010-08-07 - r24728 - lavfi 1.28.0 - AVFilterBuffer
655 Move format field from AVFilterBuffer to AVFilterPicRef.
657 2010-08-06 - r24709 - lavcore 0.3.0 - av_check_image_size()
658 Deprecate avcodec_check_dimensions() in favor of the function
659 av_check_image_size() defined in libavcore/imgutils.h.
661 2010-07-30 - r24592 - lavfi 1.27.0 - AVFilterBuffer
662 Increase size of the arrays AVFilterBuffer.data and
663 AVFilterBuffer.linesize from 4 to 8.
665 This change breaks libavfilter ABI.
667 2010-07-29 - r24583 - lavcore 0.2.0 - imgutils.h
668 Add functions av_fill_image_linesizes() and
669 av_fill_image_pointers(), declared in libavcore/imgutils.h.
671 2010-07-27 - r24518 - lavcore 0.1.0 - parseutils.h
672 Deprecate av_parse_video_frame_size() and av_parse_video_frame_rate()
673 defined in libavcodec in favor of the newly added functions
674 av_parse_video_size() and av_parse_video_rate() declared in
675 libavcore/parseutils.h.
677 2010-07-23 - r24439 - lavu 50.23.0 - mathematics.h
678 Add the M_PHI constant definition.
680 2010-07-22 - r24424 - lavfi 1.26.0 - media format generalization
681 Add a type field to AVFilterLink.
683 Change the field types:
684 enum PixelFormat format -> int format in AVFilterBuffer
685 enum PixelFormat *formats -> int *formats in AVFilterFormats
686 enum PixelFormat *format -> int format in AVFilterLink
688 Change the function signatures:
689 AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts); ->
690 AVFilterFormats *avfilter_make_format_list(const int *fmts);
692 int avfilter_add_colorspace(AVFilterFormats **avff, enum PixelFormat pix_fmt); ->
693 int avfilter_add_format (AVFilterFormats **avff, int fmt);
695 AVFilterFormats *avfilter_all_colorspaces(void); ->
696 AVFilterFormats *avfilter_all_formats (enum AVMediaType type);
698 This change breaks libavfilter API/ABI.
700 2010-07-21 - r24393 - lavcore 0.0.0
703 2010-07-17 - r24291 - lavfi 1.25.0 - AVFilterBuffer
704 Remove w and h fields from AVFilterBuffer.
706 2010-07-17 - r24284 - lavfi 1.24.0 - AVFilterBuffer
707 Rename AVFilterPic to AVFilterBuffer.
709 2010-07-17 - r24278 - lavf 52.74.0 - url_fskip()
710 Make url_fskip() return an int error code instead of void.
712 2010-07-11 - r24199 - lavc 52.83.0
713 Add AVCodecContext.lpc_type and AVCodecContext.lpc_passes fields.
715 Deprecate AVCodecContext.use_lpc.
717 2010-07-11 - r24185 - lavc 52.82.0 - avsubtitle_free()
718 Add a function for free the contents of a AVSubtitle generated by
719 avcodec_decode_subtitle.
721 2010-07-11 - r24174 - lavu 50.22.0 - bswap.h and intreadwrite.h
722 Make the bswap.h and intreadwrite.h API public.
724 2010-07-08 - r24101 - lavu 50.21.0 - pixdesc.h
725 Rename read/write_line() to av_read/write_image_line().
727 2010-07-07 - r24091 - lavfi 1.21.0 - avfilter_copy_picref_props()
728 Add avfilter_copy_picref_props().
730 2010-07-03 - r24021 - lavc 52.79.0
731 Add FF_COMPLIANCE_UNOFFICIAL and change all instances of
732 FF_COMPLIANCE_INOFFICIAL to use FF_COMPLIANCE_UNOFFICIAL.
734 2010-07-02 - r23985 - lavu 50.20.0 - lfg.h
735 Export av_lfg_init(), av_lfg_get(), av_mlfg_get(), and av_bmg_get() through
738 2010-06-28 - r23835 - lavfi 1.20.1 - av_parse_color()
739 Extend av_parse_color() syntax, make it accept an alpha value specifier and
740 set the alpha value to 255 by default.
742 2010-06-22 - r23706 - lavf 52.71.0 - URLProtocol.priv_data_size, priv_data_class
743 Add priv_data_size and priv_data_class to URLProtocol.
745 2010-06-22 - r23704 - lavf 52.70.0 - url_alloc(), url_connect()
746 Add url_alloc() and url_connect().
748 2010-06-22 - r23702 - lavf 52.69.0 - av_register_protocol2()
749 Add av_register_protocol2(), deprecating av_register_protocol().
751 2010-06-09 - r23551 - lavu 50.19.0 - av_compare_mod()
752 Add av_compare_mod() to libavutil/mathematics.h.
754 2010-06-05 - r23485 - lavu 50.18.0 - eval API
755 Make the eval API public.
757 2010-06-04 - r23461 - lavu 50.17.0 - AV_BASE64_SIZE
758 Add AV_BASE64_SIZE() macro.
760 2010-06-02 - r23421 - lavc 52.73.0 - av_get_codec_tag_string()
761 Add av_get_codec_tag_string().
763 2010-06-01 - r31301 - lsws 0.11.0 - convertPalette API
764 Add sws_convertPalette8ToPacked32() and sws_convertPalette8ToPacked24().
766 2010-05-26 - r23334 - lavc 52.72.0 - CODEC_CAP_EXPERIMENTAL
767 Add CODEC_CAP_EXPERIMENTAL flag.
768 NOTE: this was backported to 0.6
770 2010-05-23 - r23255 - lavu 50.16.0 - av_get_random_seed()
771 Add av_get_random_seed().
773 2010-05-18 - r23161 - lavf 52.63.0 - AVFMT_FLAG_RTP_HINT
774 Add AVFMT_FLAG_RTP_HINT as possible value for AVFormatContext.flags.
775 NOTE: this was backported to 0.6
777 2010-05-09 - r23066 - lavfi 1.20.0 - AVFilterPicRef
778 Add interlaced and top_field_first fields to AVFilterPicRef.
780 ------------------------------8<-------------------------------------
781 0.6 branch was cut here
782 ----------------------------->8--------------------------------------
784 2010-05-01 - r23002 - lavf 52.62.0 - probe function
785 Add av_probe_input_format2 to API, it allows ignoring probe
786 results below given score and returns the actual probe score.
788 2010-04-01 - r22806 - lavf 52.61.0 - metadata API
789 Add a flag for av_metadata_set2() to disable overwriting of
792 2010-04-01 - r22753 - lavc 52.66.0
793 Add avcodec_get_edge_width().
795 2010-03-31 - r22750 - lavc 52.65.0
796 Add avcodec_copy_context().
798 2010-03-31 - r22748 - lavf 52.60.0 - av_match_ext()
799 Make av_match_ext() public.
801 2010-03-31 - r22736 - lavu 50.14.0 - AVMediaType
802 Move AVMediaType enum from libavcodec to libavutil.
804 2010-03-31 - r22735 - lavc 52.64.0 - AVMediaType
805 Define AVMediaType enum, and use it instead of enum CodecType, which
806 is deprecated and will be dropped at the next major bump.
808 2010-03-25 - r22684 - lavu 50.13.0 - av_strerror()
809 Implement av_strerror().
811 2010-03-23 - r22649 - lavc 52.60.0 - av_dct_init()
812 Support DCT-I and DST-I.
814 2010-03-15 - r22540 - lavf 52.56.0 - AVFormatContext.start_time_realtime
815 Add AVFormatContext.start_time_realtime field.
817 2010-03-13 - r22506 - lavfi 1.18.0 - AVFilterPicRef.pos
818 Add AVFilterPicRef.pos field.
820 2010-03-13 - r22501 - lavu 50.12.0 - error.h
821 Move error code definitions from libavcodec/avcodec.h to
822 the new public header libavutil/error.h.
824 2010-03-07 - r22291 - lavc 52.56.0 - avfft.h
825 Add public FFT interface.
827 2010-03-06 - r22251 - lavu 50.11.0 - av_stristr()
830 2010-03-03 - r22174 - lavu 50.10.0 - av_tree_enumerate()
831 Add av_tree_enumerate().
833 2010-02-07 - r21673 - lavu 50.9.0 - av_compare_ts()
836 2010-02-05 - r30513 - lsws 0.10.0 - sws_getCoefficients()
837 Add sws_getCoefficients().
839 2010-02-01 - r21587 - lavf 52.50.0 - metadata API
840 Add a list of generic tag names, change 'author' -> 'artist',
843 2010-01-30 - r21545 - lavu 50.8.0 - av_get_pix_fmt()
844 Add av_get_pix_fmt().
846 2010-01-21 - r30381 - lsws 0.9.0 - sws_scale()
847 Change constness attributes of sws_scale() parameters.
849 2010-01-10 - r21121 - lavfi 1.15.0 - avfilter_graph_config_links()
850 Add a log_ctx parameter to avfilter_graph_config_links().
852 2010-01-07 - r30236 - lsws 0.8.0 - sws_isSupported{In,Out}put()
853 Add sws_isSupportedInput() and sws_isSupportedOutput() functions.
855 2010-01-06 - r21035 - lavfi 1.14.0 - avfilter_add_colorspace()
856 Change the avfilter_add_colorspace() signature, make it accept an
857 (AVFilterFormats **) rather than an (AVFilterFormats *) as before.
859 2010-01-03 - r21007 - lavfi 1.13.0 - avfilter_add_colorspace()
860 Add avfilter_add_colorspace().
862 2010-01-02 - r20998 - lavf 52.46.0 - av_match_ext()
863 Add av_match_ext(), it should be used in place of match_ext().
865 2010-01-01 - r20991 - lavf 52.45.0 - av_guess_format()
866 Add av_guess_format(), it should be used in place of guess_format().
868 2009-12-13 - r20834 - lavf 52.43.0 - metadata API
869 Add av_metadata_set2(), AV_METADATA_DONT_STRDUP_KEY and
870 AV_METADATA_DONT_STRDUP_VAL.
872 2009-12-13 - r20829 - lavu 50.7.0 - avstring.h API
875 2009-12-13 - r20826 - lavc 52.42.0 - AVStream
878 2009-12-12 - r20808 - lavu 50.6.0 - av_bmg_next()
879 Introduce the av_bmg_next() function.
881 2009-12-05 - r20734 - lavfi 1.12.0 - avfilter_draw_slice()
882 Add a slice_dir parameter to avfilter_draw_slice().
884 2009-11-26 - r20611 - lavfi 1.11.0 - AVFilter
885 Remove the next field from AVFilter, this is not anymore required.
887 2009-11-25 - r20607 - lavfi 1.10.0 - avfilter_next()
888 Introduce the avfilter_next() function.
890 2009-11-25 - r20605 - lavfi 1.9.0 - avfilter_register()
891 Change the signature of avfilter_register() to make it return an
892 int. This is required since now the registration operation may fail.
894 2009-11-25 - r20603 - lavu 50.5.0 - pixdesc.h API
895 Make the pixdesc.h API public.
897 2009-10-27 - r20385 - lavfi 1.5.0 - AVFilter.next
898 Add a next field to AVFilter, this is used for simplifying the
899 registration and management of the registered filters.
901 2009-10-23 - r20356 - lavfi 1.4.1 - AVFilter.description
902 Add a description field to AVFilter.
904 2009-10-19 - r20302 - lavfi 1.3.0 - avfilter_make_format_list()
905 Change the interface of avfilter_make_format_list() from
906 avfilter_make_format_list(int n, ...) to
907 avfilter_make_format_list(enum PixelFormat *pix_fmts).
909 2009-10-18 - r20272 - lavfi 1.0.0 - avfilter_get_video_buffer()
910 Make avfilter_get_video_buffer() recursive and add the w and h
913 2009-10-07 - r20189 - lavfi 0.5.1 - AVFilterPic
914 Add w and h fields to AVFilterPic.
916 2009-06-22 - r19250 - lavf 52.34.1 - AVFormatContext.packet_size
917 This is now an unsigned int instead of a signed int.
919 2009-06-19 - r19222 - lavc 52.32.0 - AVSubtitle.pts
920 Add a pts field to AVSubtitle which gives the subtitle packet pts
921 in AV_TIME_BASE. Some subtitle de-/encoders (e.g. XSUB) will
922 not work right without this.
924 2009-06-03 - r19078 - lavc 52.30.2 - AV_PKT_FLAG_KEY
925 PKT_FLAG_KEY has been deprecated and will be dropped at the next
926 major version. Use AV_PKT_FLAG_KEY instead.
928 2009-06-01 - r19025 - lavc 52.30.0 - av_lockmgr_register()
929 av_lockmgr_register() can be used to register a callback function
930 that lavc (and in the future, libraries that depend on lavc) can use
931 to implement mutexes. The application should provide a callback function
932 that implements the AV_LOCK_* operations described in avcodec.h.
933 When the lock manager is registered, FFmpeg is guaranteed to behave
934 correctly in a multi-threaded application.
936 2009-04-30 - r18719 - lavc 52.28.0 - av_free_packet()
937 av_free_packet() is no longer an inline function. It is now exported.
939 2009-04-11 - r18431 - lavc 52.25.0 - deprecate av_destruct_packet_nofree()
940 Please use NULL instead. This has been supported since r16506
941 (lavf > 52.23.1, lavc > 52.10.0).
943 2009-04-07 - r18351 - lavc 52.23.0 - avcodec_decode_video/audio/subtitle
944 The old decoding functions are deprecated, all new code should use the
945 new functions avcodec_decode_video2(), avcodec_decode_audio3() and
946 avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt
947 argument instead of a const uint8_t *buf / int buf_size pair.
949 2009-04-03 - r18321 - lavu 50.3.0 - av_fifo_space()
950 Introduce the av_fifo_space() function.
952 2009-04-02 - r18317 - lavc 52.23.0 - AVPacket
953 Move AVPacket declaration from libavformat/avformat.h to
954 libavcodec/avcodec.h.
956 2009-03-22 - r18163 - lavu 50.2.0 - RGB32 pixel formats
957 Convert the pixel formats PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR,
958 PIX_FMT_BGRA, which were defined as macros, into enum PixelFormat values.
959 Conversely PIX_FMT_RGB32, PIX_FMT_RGB32_1, PIX_FMT_BGR32 and
960 PIX_FMT_BGR32_1 are now macros.
961 avcodec_get_pix_fmt() now recognizes the "rgb32" and "bgr32" aliases.
962 Re-sort the enum PixelFormat list accordingly.
963 This change breaks API/ABI backward compatibility.
965 2009-03-22 - r18133 - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants
966 Add the enum PixelFormat values:
967 PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,
968 PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.
970 2009-03-21 - r18116 - lavu 50.0.0 - av_random*
971 The Mersenne Twister PRNG implemented through the av_random* functions
972 was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions
975 2009-03-08 - r17869 - lavu 50.0.0 - AVFifoBuffer
976 av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped
977 and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write
978 and av_fifo_realloc2.
979 In addition, the order of the function arguments of av_fifo_generic_read
980 was changed to match av_fifo_generic_write.
981 The AVFifoBuffer/struct AVFifoBuffer may only be used in an opaque way by
982 applications, they may not use sizeof() or directly access members.
984 2009-03-01 - r17682 - lavf 52.31.0 - Generic metadata API
985 Introduce a new metadata API (see av_metadata_get() and friends).
986 The old API is now deprecated and should not be used anymore. This especially
987 includes the following structure fields:
988 - AVFormatContext.title
989 - AVFormatContext.author
990 - AVFormatContext.copyright
991 - AVFormatContext.comment
992 - AVFormatContext.album
993 - AVFormatContext.year
994 - AVFormatContext.track
995 - AVFormatContext.genre
998 - AVProgram.provider_name