afeec8c3b7919b393f4dedc38be68adece0f5a6a
[libav.git] / doc / APIchanges
1 Never assume the API of libav* to be stable unless at least 1 month has passed
2 since the last major version increase.
3
4 The last version increases were:
5 libavcodec: 2013-03-xx
6 libavdevice: 2013-03-xx
7 libavfilter: 2013-12-xx
8 libavformat: 2013-03-xx
9 libavresample: 2012-10-05
10 libswscale: 2011-06-20
11 libavutil: 2013-12-xx
12
13
14 API changes, most recent first:
15
16 2014-02-xx - xxxxxxx - lavu 53.07.0 - frame.h, replaygain.h
17 Add AV_FRAME_DATA_REPLAYGAIN for exporting replaygain tags.
18 Add a new header replaygain.h with the AVReplayGain struct.
19
20 2014-02-xx - xxxxxxx - lavc 55.36.0 - avcodec.h
21 Add AV_PKT_DATA_REPLAYGAIN for exporting replaygain tags.
22
23 2014-02-xx - xxxxxxx - lavf 55.13.0 - avformat.h
24 Add AVStream.side_data and AVStream.nb_side_data for exporting stream-global
25 side data (e.g. replaygain tags, video rotation)
26
27 2014-02-xx - xxxxxxx - lavc 55.35.0 - avcodec.h
28 Give the name AVPacketSideData to the previously anonymous struct used for
29 AVPacket.side_data.
30
31 2014-xx-xx - xxxxxxx - lavu 53.06.0 - pixfmt.h
32 Add RGBA64 pixel format and variants.
33
34 2014-xx-xx - xxxxxxx - lavu 53.05.0 - frame.h
35 Add av_frame_copy() for copying the frame data.
36
37 2014-02-xx - xxxxxxx - lavr 1.2.0 - avresample.h
38 Add avresample_is_open() for checking whether a resample context is open.
39
40 2014-xx-xx - xxxxxxx - lavu 53.04.0 - opt.h
41 Add AV_OPT_FLAG_EXPORT and AV_OPT_FLAG_READONLY to mark options meant (only)
42 for reading.
43
44 2014-xx-xx - xxxxxxx - lavu 53.03.01 - opt.h
45 Deprecate unused AV_OPT_FLAG_METADATA.
46
47 2014-02-xx - xxxxxxx - lavu 53.3.0 - frame.h
48 Add AV_FRAME_DATA_DOWNMIX_INFO value to the AVFrameSideDataType enum and
49 downmix_info.h API, which identify downmix-related metadata.
50
51 2014-02-04 - d9ae103 - lavf 55.11.0 - avformat.h
52 Add AVFormatContext.max_interleave_delta for controlling amount of buffering
53 when interleaving.
54
55 2014-01-20 - 93c553c - lavc 55.32.1 - avcodec.h
56 Edges are not required anymore on video buffers allocated by get_buffer2()
57 (i.e. as if the CODEC_FLAG_EMU_EDGE flag was always on). Deprecate
58 CODEC_FLAG_EMU_EDGE and avcodec_get_edge_width().
59
60 2014-01-05 - 5b4797a - lavu 53.2.0 - frame.h
61 Add AV_FRAME_DATA_MATRIXENCODING value to the AVFrameSideDataType enum, which
62 identifies AVMatrixEncoding data.
63
64 2014-01-05 - 5c437fb - lavu 53.1.0 - channel_layout.h
65 Add values for various Dolby flags to the AVMatrixEncoding enum.
66
67 2013-12-20 - 2a41826 - lavc 55.30.0 - avcodec.h
68 Add HEVC profiles
69
70 2013-12-11 - b9fb59d,9431356,d7b3ee9 - lavc 55.28.1 - avcodec.h
71 av_frame_alloc(), av_frame_unref() and av_frame_free() now can and should be
72 used instead of avcodec_alloc_frame(), avcodec_get_frame_defaults() and
73 avcodec_free_frame() respectively. The latter three functions are deprecated.
74
75 2013-12-09 - 7e244c6- - lavu 52.20.0 - frame.h
76 Add AV_FRAME_DATA_STEREO3D value to the AVFrameSideDataType enum and
77 stereo3d.h API, that identify codec-independent stereo3d information.
78
79 2013-11-26 - 1eaac1d- - lavu 52.19.0 - frame.h
80 Add AV_FRAME_DATA_A53_CC value to the AVFrameSideDataType enum, which
81 identifies ATSC A53 Part 4 Closed Captions data.
82
83 2013-11-14 - cce3e0a - lavu 52.18.0 - mem.h
84 Move av_fast_malloc() and av_fast_realloc() for libavcodec to libavutil.
85
86 2013-11-14 - 8941971 - lavc 55.27.0 - avcodec.h
87 Deprecate AVCodecContext.error_rate, it is replaced by the 'error_rate'
88 private option of the mpegvideo encoder family.
89
90 2013-11-14 - 728c465 - lavc 55.26.0 - vdpau.h
91 Add av_vdpau_get_profile().
92 Add av_vdpau_alloc_context(). This function must from now on be
93 used for allocating AVVDPAUContext.
94
95 2013-11-04 - cd8f772 - lavc 55.25.0 - avcodec.h
96 Add ITU-R BT.2020 and other not yet included values to color primaries,
97 transfer characteristics and colorspaces.
98
99 2013-10-31 - 28096e0 - lavu 52.17.0 - frame.h
100 Add AVFrame.flags and AV_FRAME_FLAG_CORRUPT.
101
102 2013-09-28 - 0767bfd - lavfi 3.11.0 - avfilter.h
103 Add AVFilterGraph.execute and AVFilterGraph.opaque for custom slice threading
104 implementations.
105
106 2013-09-21 - e208e6d - lavu 52.16.0 - pixfmt.h
107 Add interleaved 4:2:2 8/10-bit formats AV_PIX_FMT_NV16 and
108 AV_PIX_FMT_NV20.
109
110 2013-09-16 - 3feb3d6 - lavu 52.15.0 - mem.h
111 Add av_reallocp.
112
113 2013-08-10 - 5a9a9d4 - lavc 55.16.0 - avcodec.h
114 Extend AVPacket API with av_packet_unref, av_packet_ref,
115 av_packet_move_ref, av_packet_copy_props, av_packet_free_side_data.
116
117 2013-08-05 - f824535 - lavc 55.13.0 - avcodec.h
118 Deprecate the bitstream-related members from struct AVVDPAUContext.
119 The bistream buffers no longer need to be explicitly freed.
120
121 2013-08-05 - 549294f - lavc 55.12.0 - avcodec.h
122 Deprecate the CODEC_CAP_HWACCEL_VDPAU codec capability. Use CODEC_CAP_HWACCEL
123 and select the AV_PIX_FMT_VDPAU format with get_format() instead.
124
125 2013-08-05 - a0ad5d0 - lavu 52.14.0 - pixfmt.h
126 Deprecate AV_PIX_FMT_VDPAU_*. Use AV_PIX_FMT_VDPAU instead.
127
128 2013-08-02 - a8b1927 - lavc 55.11.0 - avcodec.h
129 Add output_picture_number to AVCodecParserContext.
130
131 2013-06-24 - 95d5246 - lavc 55.10.0 - avcodec.h
132 Add MPEG-2 AAC profiles
133
134 2013-06-04 - fc962d4 - lavu 52.13.0 - mem.h
135 Add av_realloc_array and av_reallocp_array
136
137 2013-05-24 - 129bb23 - lavfi 3.10.0 - avfilter.h
138 Add support for slice multithreading to lavfi. Filters supporting threading
139 are marked with AVFILTER_FLAG_SLICE_THREADS.
140 New fields AVFilterContext.thread_type, AVFilterGraph.thread_type and
141 AVFilterGraph.nb_threads (accessible directly or through AVOptions) may be
142 used to configure multithreading.
143
144 2013-05-24 - 2a6eaea - lavu 52.12.0 - cpu.h
145 Add av_cpu_count() function for getting the number of logical CPUs.
146
147 2013-05-24 - b493847 - lavc 55.7.0 - avcodec.h
148 Add picture_structure to AVCodecParserContext.
149
150 2013-05-15 - e6c4ac7 - lavu 52.11.0 - pixdesc.h
151 Replace PIX_FMT_* flags with AV_PIX_FMT_FLAG_*.
152
153 2013-04-03 - 507b1e4 - lavc 55.4.0 - avcodec.h
154 Add field_order to AVCodecParserContext.
155
156 2013-04-19 - 5e83d9a - lavc 55.2.0 - avcodec.h
157 Add CODEC_FLAG_UNALIGNED to allow decoders to produce unaligned output.
158
159 2013-04-11 - lavfi 3.8.0
160 38f0c07 - Move all content from avfiltergraph.h to avfilter.h. Deprecate
161 avfilterhraph.h, user applications should include just avfilter.h
162 bc1a985 - Add avfilter_graph_alloc_filter(), deprecate avfilter_open() and
163 avfilter_graph_add_filter().
164 1113672 - Add AVFilterContext.graph pointing to the AVFilterGraph that contains the
165 filter.
166 48a5ada - Add avfilter_init_str(), deprecate avfilter_init_filter().
167 1ba95a9 - Add avfilter_init_dict().
168 7cdd737 - Add AVFilter.flags field and AVFILTER_FLAG_DYNAMIC_{INPUTS,OUTPUTS} flags.
169 7e8fe4b - Add avfilter_pad_count() for counting filter inputs/outputs.
170 fa2a34c - Add avfilter_next(), deprecate av_filter_next().
171 Deprecate avfilter_uninit().
172
173 2013-04-09 - lavfi 3.7.0 - avfilter.h
174 b439c99 - Add AVFilter.priv_class for exporting filter options through the
175 AVOptions API in the similar way private options work in lavc and lavf.
176 8114c10 - Add avfilter_get_class().
177 Switch all filters to use AVOptions.
178
179 2013-03-19 - 2c328a9 - lavu 52.9.0 - pixdesc.h
180 Add av_pix_fmt_count_planes() function for counting planes in a pixel format.
181
182 2013-03-16 - 42c7c61 - lavfi 3.6.0
183 Add AVFilterGraph.nb_filters, deprecate AVFilterGraph.filter_count.
184
185 2013-03-08 - Reference counted buffers - lavu 52.8.0, lavc 55.0.0, lavf 55.0.0,
186 lavd 54.0.0, lavfi 3.5.0
187 8e401db, 1cec062 - add a new API for reference counted buffers and buffer
188 pools (new header libavutil/buffer.h).
189 1afddbe - add AVPacket.buf to allow reference counting for the AVPacket data.
190 Add av_packet_from_data() function for constructing packets from
191 av_malloc()ed data.
192 7ecc2d4 - move AVFrame from lavc to lavu (new header libavutil/frame.h), add
193 AVFrame.buf/extended_buf to allow reference counting for the AVFrame
194 data. Add new API for working with reference-counted AVFrames.
195 759001c - add the refcounted_frames field to AVCodecContext to make audio and
196 video decoders return reference-counted frames. Add get_buffer2()
197 callback to AVCodecContext which allocates reference-counted frames.
198 Add avcodec_default_get_buffer2() as the default get_buffer2()
199 implementation.
200 Deprecate AVCodecContext.get_buffer() / release_buffer() /
201 reget_buffer(), avcodec_default_get_buffer(),
202 avcodec_default_reget_buffer(), avcodec_default_release_buffer().
203 Remove avcodec_default_free_buffers(), which should not have ever
204 been called from outside of lavc.
205 Deprecate the following AVFrame fields:
206 * base -- is now stored in AVBufferRef
207 * reference, type, buffer_hints -- are unnecessary in the new API
208 * hwaccel_picture_private, owner, thread_opaque -- should not
209 have been acessed from outside of lavc
210 * qscale_table, qstride, qscale_type, mbskip_table, motion_val,
211 mb_type, dct_coeff, ref_index -- mpegvideo-specific tables,
212 which are not exported anymore.
213 7e35037 - switch libavfilter to use AVFrame instead of AVFilterBufferRef. Add
214 av_buffersrc_add_frame(), deprecate av_buffersrc_buffer().
215 Add av_buffersink_get_frame() and av_buffersink_get_samples(),
216 deprecate av_buffersink_read() and av_buffersink_read_samples().
217 Deprecate AVFilterBufferRef and all functions for working with it.
218
219 2013-03-17 - 12c5c1d - lavu 52.8.0 - avstring.h
220 Add av_isdigit, av_isgraph, av_isspace, av_isxdigit.
221
222 2013-02-23 - 9f12235 - lavfi 3.4.0 - avfiltergraph.h
223 Add resample_lavr_opts to AVFilterGraph for setting libavresample options
224 for auto-inserted resample filters.
225
226 2013-01-25 - 38c1466 - lavu 52.7.0 - dict.h
227 Add av_dict_parse_string() to set multiple key/value pairs at once from a
228 string.
229
230 2013-01-25 - b85a5e8 - lavu 52.6.0 - avstring.h
231 Add av_strnstr()
232
233 2013-01-15 - 8ee288d - lavu 52.5.0 - hmac.h
234 Add AVHMAC.
235
236 2013-01-13 - 44e065d - lavc 54.36.0 - vdpau.h
237 Add AVVDPAUContext struct for VDPAU hardware-accelerated decoding.
238
239 2013-01-12 - 169fb94 - lavu 52.4.0 - pixdesc.h
240 Add AV_PIX_FMT_VDPAU flag.
241
242 2013-01-07 - 074a00d - lavr 1.1.0
243 Add avresample_set_channel_mapping() for input channel reordering,
244 duplication, and silencing.
245
246 ------------------------------8<-------------------------------------
247 9 branch was cut here
248 ----------------------------->8--------------------------------------
249
250 2012-12-29 - d8fd06c - lavu 52.3.0 - avstring.h
251 Add av_basename() and av_dirname().
252
253 2012-11-11 - 5980f5d - lavu 52.2.0 - audioconvert.h
254 Rename audioconvert.h to channel_layout.h. audioconvert.h is now deprecated.
255
256 2012-11-05 - dfde8a3 - lavu 52.1.0 - intmath.h
257 Add av_ctz() for trailing zero bit count
258
259 2012-10-21 - a893655 - lavu 51.45.0 - error.h
260 Add AVERROR_EXPERIMENTAL
261
262 2012-10-12 - d2fcb35 - lavu 51.44.0 - pixdesc.h
263 Add functions for accessing pixel format descriptors.
264 Accessing the av_pix_fmt_descriptors array directly is now
265 deprecated.
266
267 2012-10-11 - 9a92aea - lavu 51.43.0 - aes.h, md5.h, sha.h, tree.h
268 Add functions for allocating the opaque contexts for the algorithms,
269 deprecate the context size variables.
270
271 2012-10-10 - b522000 - lavf 54.18.0 - avio.h
272 Add avio_closep to complement avio_close.
273
274 2012-10-08 - 78071a1 - lavu 51.42.0 - pixfmt.h
275 Rename PixelFormat to AVPixelFormat and all PIX_FMT_* to AV_PIX_FMT_*.
276 To provide backwards compatibility, PixelFormat is now #defined as
277 AVPixelFormat.
278 Note that this can break user code that includes pixfmt.h and uses the
279 'PixelFormat' identifier. Such code should either #undef PixelFormat
280 or stop using the PixelFormat name.
281
282 2012-10-05 - e7ba5b1 - lavr 1.0.0 - avresample.h
283 Data planes parameters to avresample_convert() and
284 avresample_read() are now uint8_t** instead of void**.
285 Libavresample is now stable.
286
287 2012-09-24 - a42aada - lavc 54.28.0 - avcodec.h
288 Add avcodec_free_frame(). This function must now
289 be used for freeing an AVFrame.
290
291 2012-09-12 - 8919fee - lavu 51.41.0 - audioconvert.h
292 Added AV_CH_LOW_FREQUENCY_2 channel mask value.
293
294 2012-09-04 - 686a329 - lavu 51.40.0 - opt.h
295 Reordered the fields in default_val in AVOption, changed which
296 default_val field is used for which AVOptionType.
297
298 2012-08-30 - a231832 - lavc 54.26.1 - avcodec.h
299 Add codec descriptor properties AV_CODEC_PROP_LOSSY and
300 AV_CODEC_PROP_LOSSLESS.
301
302 2012-08-18 - lavc 54.26 - avcodec.h
303 Add codec descriptors for accessing codec properties without having
304 to refer to a specific decoder or encoder.
305
306 c223d79 - Add an AVCodecDescriptor struct and functions
307 avcodec_descriptor_get() and avcodec_descriptor_next().
308 51efed1 - Add AVCodecDescriptor.props and AV_CODEC_PROP_INTRA_ONLY.
309 91e59fe - Add avcodec_descriptor_get_by_name().
310
311
312 2012-08-08 - 1d9c2dc - lavu 51.39 - avutil.h
313 Don't implicitly include libavutil/common.h in avutil.h
314
315 2012-08-08 - 987170c - lavu 51.38 - dict.h
316 Add av_dict_count().
317
318 2012-08-07 - 104e10f - lavc 54.25 - avcodec.h
319 Rename CodecID to AVCodecID and all CODEC_ID_* to AV_CODEC_ID_*.
320 To provide backwards compatibility, CodecID is now #defined as AVCodecID.
321 Note that this can break user code that includes avcodec.h and uses the
322 'CodecID' identifier. Such code should either #undef CodecID or stop using the
323 CodecID name.
324
325 2012-08-03 - 239fdf1 - lavu 51.37.1 - cpu.h
326 lsws 2.1.1 - swscale.h
327 Rename AV_CPU_FLAG_MMX2 ---> AV_CPU_FLAG_MMXEXT.
328 Rename SWS_CPU_CAPS_MMX2 ---> SWS_CPU_CAPS_MMXEXT.
329
330 2012-07-29 - 681ed00 - lavf 54.13.0 - avformat.h
331 Add AVFMT_FLAG_NOBUFFER for low latency use cases.
332
333 2012-07-20 - b70d89a - lavfi 3.0.0 - avfilter.h
334 Add avfilter_unref_bufferp().
335
336 2012-07-10 - 5fade8a - lavu 51.37.0
337 Add av_malloc_array() and av_mallocz_array()
338
339 2012-06-22 - d3d3a32 - lavu 51.34.0
340 Add av_usleep()
341
342 2012-06-20 - ae0a301 - lavu 51.33.0
343 Move av_gettime() to libavutil, add libavutil/time.h
344
345 2012-06-09 - 3971be0 - lavr 0.0.3
346 Add a parameter to avresample_build_matrix() for Dolby/DPLII downmixing.
347
348 2012-06-12 - 9baeff9 - lavfi 2.23.0 - avfilter.h
349 Add AVFilterContext.nb_inputs/outputs. Deprecate
350 AVFilterContext.input/output_count.
351
352 2012-06-12 - 84b9fbe - lavfi 2.22.0 - avfilter.h
353 Add avfilter_pad_get_type() and avfilter_pad_get_name(). Those
354 should now be used instead of accessing AVFilterPad members
355 directly.
356
357 2012-06-12 - b0f0dfc - lavu 51.32.0 - audioconvert.h
358 Add av_get_channel_layout_channel_index(), av_get_channel_name()
359 and av_channel_layout_extract_channel().
360
361 2012-05-25 - 154486f - lavu 51.31.0 - opt.h
362 Add av_opt_set_bin()
363
364 2012-05-26 - e9cef89 - lavf 54.3.0
365 Add AVFMT_TS_NONSTRICT format flag to indicate that a muxer supports
366 non-increasing monotone timestamps.
367
368 2012-05-15 - lavfi 2.17.0
369 Add support for audio filters
370 ac71230/a2cd9be - add video/audio buffer sink in a new installed
371 header buffersink.h
372 720c6b7 - add av_buffersrc_write_frame(), deprecate
373 av_vsrc_buffer_add_frame()
374 ab16504 - add avfilter_copy_buf_props()
375 9453c9e - add extended_data to AVFilterBuffer
376 1b8c927 - add avfilter_get_audio_buffer_ref_from_arrays()
377
378 2012-05-09 - lavu 51.30.0 - samplefmt.h
379 142e740 - add av_samples_copy()
380 6d7f617 - add av_samples_set_silence()
381
382 2012-05-09 - a5117a2 - lavc 54.13.1
383 For audio formats with fixed frame size, the last frame
384 no longer needs to be padded with silence, libavcodec
385 will handle this internally (effectively all encoders
386 behave as if they had CODEC_CAP_SMALL_LAST_FRAME set).
387
388 2012-05-07 - 828bd08 - lavc 54.13.0 - avcodec.h
389 Add sample_rate and channel_layout fields to AVFrame.
390
391 2012-05-01 - 4010d72 - lavr 0.0.1
392 Change AV_MIX_COEFF_TYPE_Q6 to AV_MIX_COEFF_TYPE_Q8.
393
394 2012-04-25 - 3527a73 - lavu 51.29.0 - cpu.h
395 Add av_parse_cpu_flags()
396
397 2012-04-24 - c8af852 - lavr 0.0.0
398 Add libavresample audio conversion library
399
400 2012-04-20 - 0c0d1bc - lavu 51.28.0 - audio_fifo.h
401 Add audio FIFO functions:
402 av_audio_fifo_free()
403 av_audio_fifo_alloc()
404 av_audio_fifo_realloc()
405 av_audio_fifo_write()
406 av_audio_fifo_read()
407 av_audio_fifo_drain()
408 av_audio_fifo_reset()
409 av_audio_fifo_size()
410 av_audio_fifo_space()
411
412 2012-04-14 - lavfi 2.16.0 - avfiltergraph.h
413 d7bcc71 Add avfilter_graph_parse2().
414 91d3cbe Add avfilter_inout_alloc() and avfilter_inout_free().
415
416 2012-04-08 - 4d693b0 - lavu 51.27.0 - samplefmt.h
417 Add av_get_packed_sample_fmt() and av_get_planar_sample_fmt()
418
419 2012-04-05 - 5cc51a5 - lavu 51.26.0 - audioconvert.h
420 Add av_get_default_channel_layout()
421
422 2012-03-20 - 3c90cc2 - lavfo 54.2.0
423 Deprecate av_read_packet(), use av_read_frame() with
424 AVFMT_FLAG_NOPARSE | AVFMT_FLAG_NOFILLIN in AVFormatContext.flags
425
426 2012-03-06 - 4d851f8 - lavu 51.25.0 - cpu.h
427 Add av_set_cpu_flags_mask().
428
429 2012-03-05 - lavc 54.8.0
430 6699d07 Add av_get_exact_bits_per_sample()
431 9524cf7 Add av_get_audio_frame_duration()
432
433 2012-03-04 - 44fe77b - lavc 54.7.0 - avcodec.h
434 Add av_codec_is_encoder/decoder().
435
436 2012-03-01 - 442c132 - lavc 54.3.0 - avcodec.h
437 Add av_packet_shrink_side_data.
438
439 2012-02-29 - dd2a4bc - lavf 54.2.0 - avformat.h
440 Add AVStream.attached_pic and AV_DISPOSITION_ATTACHED_PIC,
441 used for dealing with attached pictures/cover art.
442
443 2012-02-25 - c9bca80 - lavu 51.24.0 - error.h
444 Add AVERROR_UNKNOWN
445 NOTE: this was backported to 0.8
446
447 2012-02-20 - e9cda85 - lavc 54.2.0
448 Add duration field to AVCodecParserContext
449
450 2012-02-20 - 0b42a93 - lavu 51.23.1 - mathematics.h
451 Add av_rescale_q_rnd()
452
453 2012-02-08 - 38d5533 - lavu 51.22.1 - pixdesc.h
454 Add PIX_FMT_PSEUDOPAL flag.
455
456 2012-02-08 - 52f82a1 - lavc 54.01.0
457 Add avcodec_encode_video2() and deprecate avcodec_encode_video().
458
459 2012-02-01 - 316fc74 - lavc 54.01.0
460 Add av_fast_padded_malloc() as alternative for av_realloc() when aligned
461 memory is required. The buffer will always have FF_INPUT_BUFFER_PADDING_SIZE
462 zero-padded bytes at the end.
463
464 2012-01-31 - dd6d3b0 - lavf 54.01.0
465 Add avformat_get_riff_video_tags() and avformat_get_riff_audio_tags().
466 NOTE: this was backported to 0.8
467
468 2012-01-31 - af08d9a - lavc 54.01.0
469 Add avcodec_is_open() function.
470 NOTE: this was backported to 0.8
471
472 2012-01-30 - 8b93312 - lavu 51.22.0 - intfloat.h
473 Add a new installed header libavutil/intfloat.h with int/float punning
474 functions.
475 NOTE: this was backported to 0.8
476
477 2012-01-25 - lavf 53.22.0
478 f1caf01 Allow doing av_write_frame(ctx, NULL) for flushing possible
479 buffered data within a muxer. Added AVFMT_ALLOW_FLUSH for
480 muxers supporting it (av_write_frame makes sure it is called
481 only for muxers with this flag).
482
483 ------------------------------8<-------------------------------------
484 0.8 branch was cut here
485 ----------------------------->8--------------------------------------
486
487 2012-01-15 - lavc 53.34.0
488 New audio encoding API:
489 b2c75b6 Add CODEC_CAP_VARIABLE_FRAME_SIZE capability for use by audio
490 encoders.
491 5ee5fa0 Add avcodec_fill_audio_frame() as a convenience function.
492 b2c75b6 Add avcodec_encode_audio2() and deprecate avcodec_encode_audio().
493 Add AVCodec.encode2().
494
495 2012-01-12 - 3167dc9 - lavfi 2.15.0
496 Add a new installed header -- libavfilter/version.h -- with version macros.
497
498 2011-01-03 - b73ec05 - lavu 51.21.0
499 Add av_popcount64
500
501 2011-12-25 - lavfi 2.14.0
502 e1d9dbf Add a new installed header - buffersrc.h
503 It contains a new function av_buffersrc_buffer() that allows passing
504 frames to the 'buffer' filter, but unlike av_vsrc_buffer_add_frame()
505 it allows for direct rendering.
506 1c9e340 Add avfilter_copy_frame_props() for copying properties from
507 AVFrame to AVFilterBufferRef.
508
509 2011-12-25 - lavc 53.31.0
510 Add the following new fields to AVFrame:
511 b58dbb5 sample_aspect_ratio
512 3a2ddf7 width, height
513 8a4a5f6 format
514
515 2011-12-18 - 8400b12 - lavc 53.28.1
516 Deprecate AVFrame.age. The field is unused.
517
518 2011-12-12 - 5266045 - lavf 53.17.0
519 Add avformat_close_input().
520 Deprecate av_close_input_file() and av_close_input_stream().
521
522 2011-12-02 - 0eea212 - lavc 53.25.0
523 Add nb_samples and extended_data fields to AVFrame.
524 Deprecate AVCODEC_MAX_AUDIO_FRAME_SIZE.
525 Deprecate avcodec_decode_audio3() in favor of avcodec_decode_audio4().
526 avcodec_decode_audio4() writes output samples to an AVFrame, which allows
527 audio decoders to use get_buffer().
528
529 2011-12-04 - 560f773 - lavc 53.24.0
530 Change AVFrame.data[4]/base[4]/linesize[4]/error[4] to [8] at next major bump.
531 Change AVPicture.data[4]/linesize[4] to [8] at next major bump.
532 Change AVCodecContext.error[4] to [8] at next major bump.
533 Add AV_NUM_DATA_POINTERS to simplify the bump transition.
534
535 2011-11-23 - bbb46f3 - lavu 51.18.0
536 Add av_samples_get_buffer_size(), av_samples_fill_arrays(), and
537 av_samples_alloc(), to samplefmt.h.
538
539 2011-11-23 - 8889cc4 - lavu 51.17.0
540 Add planar sample formats and av_sample_fmt_is_planar() to samplefmt.h.
541
542 2011-11-19 - f3a29b7 - lavc 53.21.0
543 Move some AVCodecContext fields to a new private struct, AVCodecInternal,
544 which is accessed from a new field, AVCodecContext.internal.
545 - fields moved:
546 AVCodecContext.internal_buffer --> AVCodecInternal.buffer
547 AVCodecContext.internal_buffer_count --> AVCodecInternal.buffer_count
548 AVCodecContext.is_copy --> AVCodecInternal.is_copy
549
550 2011-11-16 - 6270671 - lavu 51.16.0
551 Add av_timegm()
552
553 2011-11-13 - lavf 53.15.0
554 New interrupt callback API, allowing per-AVFormatContext/AVIOContext
555 interrupt callbacks.
556 6aa0b98 Add AVIOInterruptCB struct and the interrupt_callback field to
557 AVFormatContext.
558 1dee0ac Add avio_open2() with additional parameters. Those are
559 an interrupt callback and an options AVDictionary.
560 This will allow passing AVOptions to protocols after lavf
561 54.0.
562
563 2011-11-06 - ba04ecf - lavu 51.14.0
564 Add av_strcasecmp() and av_strncasecmp() to avstring.h.
565
566 2011-11-06 - 07b172f - lavu 51.13.0
567 Add av_toupper()/av_tolower()
568
569 2011-11-05 - b6d08f4 - lavf 53.13.0
570 Add avformat_network_init()/avformat_network_deinit()
571
572 2011-10-27 - 512557b - lavc 53.15.0
573 Remove avcodec_parse_frame.
574 Deprecate AVCodecContext.parse_only and CODEC_CAP_PARSE_ONLY.
575
576 2011-10-19 - 569129a - lavf 53.10.0
577 Add avformat_new_stream(). Deprecate av_new_stream().
578
579 2011-10-13 - b631fba - lavf 53.9.0
580 Add AVFMT_NO_BYTE_SEEK AVInputFormat flag.
581
582 2011-10-12 - lavu 51.12.0
583 AVOptions API rewrite.
584
585 - 145f741 FF_OPT_TYPE* renamed to AV_OPT_TYPE_*
586 - new setting/getting functions with slightly different semantics:
587 dac66da av_set_string3 -> av_opt_set
588 av_set_double -> av_opt_set_double
589 av_set_q -> av_opt_set_q
590 av_set_int -> av_opt_set_int
591
592 41d9d51 av_get_string -> av_opt_get
593 av_get_double -> av_opt_get_double
594 av_get_q -> av_opt_get_q
595 av_get_int -> av_opt_get_int
596
597 - 8c5dcaa trivial rename av_next_option -> av_opt_next
598 - 641c7af new functions - av_opt_child_next, av_opt_child_class_next
599 and av_opt_find2()
600
601 2011-09-03 - fb4ca26 - lavc 53.10.0
602 lavf 53.6.0
603 lsws 2.1.0
604 Add {avcodec,avformat,sws}_get_class().
605
606 2011-09-03 - c11fb82 - lavu 51.10.0
607 Add AV_OPT_SEARCH_FAKE_OBJ flag for av_opt_find() function.
608
609 2011-08-26 - lavu 51.9.0
610 - f2011ed Add av_fifo_peek2(), deprecate av_fifo_peek().
611 - add41de..abc78a5 Do not include intfloat_readwrite.h,
612 mathematics.h, rational.h, pixfmt.h, or log.h from avutil.h.
613
614 2011-08-16 - 48f9e45 - lavf 53.4.0
615 Add avformat_query_codec().
616
617 2011-08-16 - bca06e7 - lavc 53.8.0
618 Add avcodec_get_type().
619
620 2011-08-06 - 2f63440 - lavf 53.4.0
621 Add error_recognition to AVFormatContext.
622
623 2011-08-02 - 9d39cbf - lavc 53.7.1
624 Add AV_PKT_FLAG_CORRUPT AVPacket flag.
625
626 2011-07-10 - a67c061 - lavf 53.3.0
627 Add avformat_find_stream_info(), deprecate av_find_stream_info().
628 NOTE: this was backported to 0.7
629
630 2011-07-10 - 0b950fe - lavc 53.6.0
631 Add avcodec_open2(), deprecate avcodec_open().
632 NOTE: this was backported to 0.7
633
634 Add avcodec_alloc_context3. Deprecate avcodec_alloc_context() and
635 avcodec_alloc_context2().
636
637 2011-06-23 - 67e9ae1 - lavu 51.8.0 - attributes.h
638 Add av_printf_format().
639
640 ------------------------------8<-------------------------------------
641 0.7 branch was cut here
642 ----------------------------->8--------------------------------------
643
644 2011-06-16 - 05e84c9, 25de595 - lavf 53.2.0 - avformat.h
645 Add avformat_open_input and avformat_write_header().
646 Deprecate av_open_input_stream, av_open_input_file,
647 AVFormatParameters and av_write_header.
648
649 2011-06-16 - 7e83e1c, dc59ec5 - lavu 51.7.0 - opt.h
650 Add av_opt_set_dict() and av_opt_find().
651 Deprecate av_find_opt().
652 Add AV_DICT_APPEND flag.
653
654 2011-06-10 - cb7c11c - lavu 51.6.0 - opt.h
655 Add av_opt_flag_is_set().
656
657 2011-06-08 - d9f80ea - lavu 51.5.0 - AVMetadata
658 Move AVMetadata from lavf to lavu and rename it to
659 AVDictionary -- new installed header dict.h.
660 All av_metadata_* functions renamed to av_dict_*.
661
662 2011-06-07 - a6703fa - lavu 51.4.0 - av_get_bytes_per_sample()
663 Add av_get_bytes_per_sample() in libavutil/samplefmt.h.
664 Deprecate av_get_bits_per_sample_fmt().
665
666 2011-06-05 - b39b062 - lavu 51.3.0 - opt.h
667 Add av_opt_free convenience function.
668
669 2011-05-28 - 0420bd7 - lavu 51.2.0 - pixdesc.h
670 Add av_get_pix_fmt_name() in libavutil/pixdesc.h, and deprecate
671 avcodec_get_pix_fmt_name() in libavcodec/avcodec.h in its favor.
672
673 2011-05-25 - 30315a8 - lavf 53.1.0 - avformat.h
674 Add fps_probe_size to AVFormatContext.
675
676 2011-05-18 - 64150ff - lavc 53.4.0 - AVCodecContext.request_sample_fmt
677 Add request_sample_fmt field to AVCodecContext.
678
679 2011-05-10 - 188dea1 - lavc 53.3.0 - avcodec.h
680 Deprecate AVLPCType and the following fields in
681 AVCodecContext: lpc_coeff_precision, prediction_order_method,
682 min_partition_order, max_partition_order, lpc_type, lpc_passes.
683 Corresponding FLAC encoder options should be used instead.
684
685 2011-04-26 - bebe72f - lavu 51.1.0 - avutil.h
686 Add AVPictureType enum and av_get_picture_type_char(), deprecate
687 FF_*_TYPE defines and av_get_pict_type_char() defined in
688 libavcodec/avcodec.h.
689
690 2011-04-26 - 10d3940 - lavfi 2.3.0 - avfilter.h
691 Add pict_type and key_frame fields to AVFilterBufferRefVideo.
692
693 2011-04-26 - 7a11c82 - lavfi 2.2.0 - vsrc_buffer
694 Add sample_aspect_ratio fields to vsrc_buffer arguments
695
696 2011-04-21 - 94f7451 - lavc 53.1.0 - avcodec.h
697 Add CODEC_CAP_SLICE_THREADS for codecs supporting sliced threading.
698
699 2011-04-15 - lavc 52.120.0 - avcodec.h
700 AVPacket structure got additional members for passing side information:
701 4de339e introduce side information for AVPacket
702 2d8591c make containers pass palette change in AVPacket
703
704 2011-04-12 - lavf 52.107.0 - avio.h
705 Avio cleanup, part II - deprecate the entire URLContext API:
706 175389c add avio_check as a replacement for url_exist
707 ff1ec0c add avio_pause and avio_seek_time as replacements
708 for _av_url_read_fseek/fpause
709 cdc6a87 deprecate av_protocol_next(), avio_enum_protocols
710 should be used instead.
711 80c6e23 rename url_set_interrupt_cb->avio_set_interrupt_cb.
712 f87b1b3 rename open flags: URL_* -> AVIO_*
713 f8270bb add avio_enum_protocols.
714 5593f03 deprecate URLProtocol.
715 c486dad deprecate URLContext.
716 026e175 deprecate the typedef for URLInterruptCB
717 8e76a19 deprecate av_register_protocol2.
718 b840484 deprecate URL_PROTOCOL_FLAG_NESTED_SCHEME
719 1305d93 deprecate av_url_read_seek
720 fa104e1 deprecate av_url_read_pause
721 727c7aa deprecate url_get_filename().
722 5958df3 deprecate url_max_packet_size().
723 1869ea0 deprecate url_get_file_handle().
724 32a97d4 deprecate url_filesize().
725 e52a914 deprecate url_close().
726 58a48c6 deprecate url_seek().
727 925e908 deprecate url_write().
728 dce3756 deprecate url_read_complete().
729 bc371ac deprecate url_read().
730 0589da0 deprecate url_open().
731 62eaaea deprecate url_connect.
732 5652bb9 deprecate url_alloc.
733 333e894 deprecate url_open_protocol
734 e230705 deprecate url_poll and URLPollEntry
735
736 2011-04-10 - lavu 50.40.0 - pixfmt.h
737 Add PIX_FMT_BGR48LE and PIX_FMT_BGR48BE pixel formats
738
739 2011-04-08 - lavf 52.106.0 - avformat.h
740 Minor avformat.h cleanup:
741 a9bf9d8 deprecate av_guess_image2_codec
742 c3675df rename avf_sdp_create->av_sdp_create
743
744 2011-04-03 - lavf 52.105.0 - avio.h
745 Large-scale renaming/deprecating of AVIOContext-related functions:
746 724f6a0 deprecate url_fdopen
747 403ee83 deprecate url_open_dyn_packet_buf
748 6dc7d80 rename url_close_dyn_buf -> avio_close_dyn_buf
749 b92c545 rename url_open_dyn_buf -> avio_open_dyn_buf
750 8978fed introduce an AVIOContext.seekable field as a replacement for
751 AVIOContext.is_streamed and url_is_streamed()
752 b64030f deprecate get_checksum()
753 4c4427a deprecate init_checksum()
754 4ec153b deprecate udp_set_remote_url/get_local_port
755 933e90a deprecate av_url_read_fseek/fpause
756 8d9769a deprecate url_fileno
757 b7f2fdd rename put_flush_packet -> avio_flush
758 35f1023 deprecate url_close_buf
759 83fddae deprecate url_open_buf
760 d9d86e0 rename url_fprintf -> avio_printf
761 59f65d9 deprecate url_setbufsize
762 3e68b3b deprecate url_ferror
763 66e5b1d deprecate url_feof
764 e8bb2e2 deprecate url_fget_max_packet_size
765 76aa876 rename url_fsize -> avio_size
766 e519753 deprecate url_fgetc
767 655e45e deprecate url_fgets
768 a2704c9 rename url_ftell -> avio_tell
769 e16ead0 deprecate get_strz() in favor of avio_get_str
770 0300db8,2af07d3 rename url_fskip -> avio_skip
771 6b4aa5d rename url_fseek -> avio_seek
772 61840b4 deprecate put_tag
773 22a3212 rename url_fopen/fclose -> avio_open/close.
774 0ac8e2b deprecate put_nbyte
775 77eb550 rename put_byte -> avio_w8
776 put_[b/l]e<type> -> avio_w[b/l]<type>
777 put_buffer -> avio_write
778 b7effd4 rename get_byte -> avio_r8,
779 get_[b/l]e<type> -> avio_r[b/l]<type>
780 get_buffer -> avio_read
781 b3db9ce deprecate get_partial_buffer
782 8d9ac96 rename av_alloc_put_byte -> avio_alloc_context
783
784 2011-03-25 - 34b47d7 - lavc 52.115.0 - AVCodecContext.audio_service_type
785 Add audio_service_type field to AVCodecContext.
786
787 2011-03-02 - 863c471 - lavf 52.103.0 - av_pkt_dump2, av_pkt_dump_log2
788 Add new functions av_pkt_dump2, av_pkt_dump_log2 that uses the
789 source stream timebase for outputting timestamps. Deprecate
790 av_pkt_dump and av_pkt_dump_log.
791
792 2011-02-20 - e731b8d - lavf 52.102.0 - avio.h
793 * e731b8d - rename init_put_byte() to ffio_init_context(), deprecating the
794 original, and move it to a private header so it is no longer
795 part of our public API. Instead, use av_alloc_put_byte().
796 * ae628ec - rename ByteIOContext to AVIOContext.
797
798 2011-02-16 - 09d171b - lavf 52.101.0 - avformat.h
799 lavu 52.39.0 - parseutils.h
800 * 610219a - Add av_ prefix to dump_format().
801 * f6c7375 - Replace parse_date() in lavf with av_parse_time() in lavu.
802 * ab0287f - Move find_info_tag from lavf to lavu and add av_prefix to it.
803
804 2011-02-15 - lavu 52.38.0 - merge libavcore
805 libavcore is merged back completely into libavutil
806
807 2011-02-10 - 55bad0c - lavc 52.113.0 - vbv_delay
808 Add vbv_delay field to AVCodecContext
809
810 2011-02-14 - 24a83bd - lavf 52.100.0 - AV_DISPOSITION_CLEAN_EFFECTS
811 Add AV_DISPOSITION_CLEAN_EFFECTS disposition flag.
812
813 2011-02-14 - 910b5b8 - lavfi 1.76.0 - AVFilterLink sample_aspect_ratio
814 Add sample_aspect_ratio field to AVFilterLink.
815
816 2011-02-10 - 12c14cd - lavf 52.99.0 - AVStream.disposition
817 Add AV_DISPOSITION_HEARING_IMPAIRED and AV_DISPOSITION_VISUAL_IMPAIRED.
818
819 2011-02-09 - 5592734 - lavc 52.112.0 - avcodec_thread_init()
820 Deprecate avcodec_thread_init()/avcodec_thread_free() use; instead
821 set thread_count before calling avcodec_open.
822
823 2011-02-09 - 778b08a - lavc 52.111.0 - threading API
824 Add CODEC_CAP_FRAME_THREADS with new restrictions on get_buffer()/
825 release_buffer()/draw_horiz_band() callbacks for appropriate codecs.
826 Add thread_type and active_thread_type fields to AVCodecContext.
827
828 2011-02-08 - 3940caa - lavf 52.98.0 - av_probe_input_buffer
829 Add av_probe_input_buffer() to avformat.h for probing format from a
830 ByteIOContext.
831
832 2011-02-06 - fe174fc - lavf 52.97.0 - avio.h
833 Add flag for non-blocking protocols: URL_FLAG_NONBLOCK
834
835 2011-02-04 - f124b08 - lavf 52.96.0 - avformat_free_context()
836 Add avformat_free_context() in avformat.h.
837
838 2011-02-03 - f5b82f4 - lavc 52.109.0 - add CODEC_ID_PRORES
839 Add CODEC_ID_PRORES to avcodec.h.
840
841 2011-02-03 - fe9a3fb - lavc 52.109.0 - H.264 profile defines
842 Add defines for H.264 * Constrained Baseline and Intra profiles
843
844 2011-02-02 - lavf 52.95.0
845 * 50196a9 - add a new installed header version.h.
846 * 4efd5cf, dccbd97, 93b78d1 - add several variants of public
847 avio_{put,get}_str* functions. Deprecate corresponding semi-public
848 {put,get}_str*.
849
850 2011-02-02 - dfd2a00 - lavu 50.37.0 - log.h
851 Make av_dlog public.
852
853 2011-01-15 - a242ac3 - lavfi 1.74.0 - AVFilterBufferRefAudioProps
854 Rename AVFilterBufferRefAudioProps.samples_nb to nb_samples.
855
856 2011-01-14 - 7f88a5b - lavf 52.93.0 - av_metadata_copy()
857 Add av_metadata_copy() in avformat.h.
858
859 2011-01-07 - 81c623f - lavc 52.107.0 - deprecate reordered_opaque
860 Deprecate reordered_opaque in favor of pkt_pts/dts.
861
862 2011-01-07 - 1919fea - lavc 52.106.0 - pkt_dts
863 Add pkt_dts to AVFrame, this will in the future allow multithreading decoders
864 to not mess up dts.
865
866 2011-01-07 - 393cbb9 - lavc 52.105.0 - pkt_pts
867 Add pkt_pts to AVFrame.
868
869 2011-01-07 - 060ec0a - lavc 52.104.0 - av_get_profile_name()
870 Add av_get_profile_name to libavcodec/avcodec.h.
871
872 2010-12-27 - 0ccabee - lavfi 1.71.0 - AV_PERM_NEG_LINESIZES
873 Add AV_PERM_NEG_LINESIZES in avfilter.h.
874
875 2010-12-27 - 9128ae0 - lavf 52.91.0 - av_find_best_stream()
876 Add av_find_best_stream to libavformat/avformat.h.
877
878 2010-12-27 - 107a7e3 - lavf 52.90.0
879 Add AVFMT_NOSTREAMS flag for formats with no streams,
880 like e.g. text metadata.
881
882 2010-12-22 - 0328b9e - lavu 50.36.0 - file.h
883 Add functions av_file_map() and av_file_unmap() in file.h.
884
885 2010-12-19 - 0bc55f5 - lavu 50.35.0 - error.h
886 Add "not found" error codes:
887 AVERROR_DEMUXER_NOT_FOUND
888 AVERROR_MUXER_NOT_FOUND
889 AVERROR_DECODER_NOT_FOUND
890 AVERROR_ENCODER_NOT_FOUND
891 AVERROR_PROTOCOL_NOT_FOUND
892 AVERROR_FILTER_NOT_FOUND
893 AVERROR_BSF_NOT_FOUND
894 AVERROR_STREAM_NOT_FOUND
895
896 2010-12-09 - c61cdd0 - lavcore 0.16.0 - avcore.h
897 Move AV_NOPTS_VALUE, AV_TIME_BASE, AV_TIME_BASE_Q symbols from
898 avcodec.h to avcore.h.
899
900 2010-12-04 - 16cfc96 - lavc 52.98.0 - CODEC_CAP_NEG_LINESIZES
901 Add CODEC_CAP_NEG_LINESIZES codec capability flag in avcodec.h.
902
903 2010-12-04 - bb4afa1 - lavu 50.34.0 - av_get_pix_fmt_string()
904 Deprecate avcodec_pix_fmt_string() in favor of
905 pixdesc.h/av_get_pix_fmt_string().
906
907 2010-12-04 - 4da12e3 - lavcore 0.15.0 - av_image_alloc()
908 Add av_image_alloc() to libavcore/imgutils.h.
909
910 2010-12-02 - 037be76 - lavfi 1.67.0 - avfilter_graph_create_filter()
911 Add function avfilter_graph_create_filter() in avfiltergraph.h.
912
913 2010-11-25 - 4723bc2 - lavfi 1.65.0 - avfilter_get_video_buffer_ref_from_arrays()
914 Add function avfilter_get_video_buffer_ref_from_arrays() in
915 avfilter.h.
916
917 2010-11-21 - 176a615 - lavcore 0.14.0 - audioconvert.h
918 Add a public audio channel API in audioconvert.h, and deprecate the
919 corresponding functions in libavcodec:
920 avcodec_get_channel_name()
921 avcodec_get_channel_layout()
922 avcodec_get_channel_layout_string()
923 avcodec_channel_layout_num_channels()
924 and the CH_* macros defined in libavcodec/avcodec.h.
925
926 2010-11-21 - 6bfc268 - lavf 52.85.0 - avformat.h
927 Add av_append_packet().
928
929 2010-11-21 - a08d918 - lavc 52.97.0 - avcodec.h
930 Add av_grow_packet().
931
932 2010-11-17 - 0985e1a - lavcore 0.13.0 - parseutils.h
933 Add av_parse_color() declared in libavcore/parseutils.h.
934
935 2010-11-13 - cb2c971 - lavc 52.95.0 - AVCodecContext
936 Add AVCodecContext.subtitle_header and AVCodecContext.subtitle_header_size
937 fields.
938
939 2010-11-13 - 5aaea02 - lavfi 1.62.0 - avfiltergraph.h
940 Make avfiltergraph.h public.
941
942 2010-11-13 - 4fcbb2a - lavfi 1.61.0 - avfiltergraph.h
943 Remove declarations from avfiltergraph.h for the functions:
944 avfilter_graph_check_validity()
945 avfilter_graph_config_links()
946 avfilter_graph_config_formats()
947 which are now internal.
948 Use avfilter_graph_config() instead.
949
950 2010-11-08 - d2af720 - lavu 50.33.0 - eval.h
951 Deprecate functions:
952 av_parse_and_eval_expr(),
953 av_parse_expr(),
954 av_eval_expr(),
955 av_free_expr(),
956 in favor of the functions:
957 av_expr_parse_and_eval(),
958 av_expr_parse(),
959 av_expr_eval(),
960 av_expr_free().
961
962 2010-11-08 - 24de0ed - lavfi 1.59.0 - avfilter_free()
963 Rename avfilter_destroy() to avfilter_free().
964 This change breaks libavfilter API/ABI.
965
966 2010-11-07 - 1e80a0e - lavfi 1.58.0 - avfiltergraph.h
967 Remove graphparser.h header, move AVFilterInOut and
968 avfilter_graph_parse() declarations to libavfilter/avfiltergraph.h.
969
970 2010-11-07 - 7313132 - lavfi 1.57.0 - AVFilterInOut
971 Rename field AVFilterInOut.filter to AVFilterInOut.filter_ctx.
972 This change breaks libavfilter API.
973
974 2010-11-04 - 97dd1e4 - lavfi 1.56.0 - avfilter_graph_free()
975 Rename avfilter_graph_destroy() to avfilter_graph_free().
976 This change breaks libavfilter API/ABI.
977
978 2010-11-04 - e15aeea - lavfi 1.55.0 - avfilter_graph_alloc()
979 Add avfilter_graph_alloc() to libavfilter/avfiltergraph.h.
980
981 2010-11-02 - 6f84cd1 - lavcore 0.12.0 - av_get_bits_per_sample_fmt()
982 Add av_get_bits_per_sample_fmt() to libavcore/samplefmt.h and
983 deprecate av_get_bits_per_sample_format().
984
985 2010-11-02 - d63e456 - lavcore 0.11.0 - samplefmt.h
986 Add sample format functions in libavcore/samplefmt.h:
987 av_get_sample_fmt_name(),
988 av_get_sample_fmt(),
989 av_get_sample_fmt_string(),
990 and deprecate the corresponding libavcodec/audioconvert.h functions:
991 avcodec_get_sample_fmt_name(),
992 avcodec_get_sample_fmt(),
993 avcodec_sample_fmt_string().
994
995 2010-11-02 - 262d1c5 - lavcore 0.10.0 - samplefmt.h
996 Define enum AVSampleFormat in libavcore/samplefmt.h, deprecate enum
997 SampleFormat.
998
999 2010-10-16 - 2a24df9 - lavfi 1.52.0 - avfilter_graph_config()
1000 Add the function avfilter_graph_config() in avfiltergraph.h.
1001
1002 2010-10-15 - 03700d3 - lavf 52.83.0 - metadata API
1003 Change demuxers to export metadata in generic format and
1004 muxers to accept generic format. Deprecate the public
1005 conversion API.
1006
1007 2010-10-10 - 867ae7a - lavfi 1.49.0 - AVFilterLink.time_base
1008 Add time_base field to AVFilterLink.
1009
1010 2010-09-27 - c85eef4 - lavu 50.31.0 - av_set_options_string()
1011 Move av_set_options_string() from libavfilter/parseutils.h to
1012 libavutil/opt.h.
1013
1014 2010-09-27 - acc0490 - lavfi 1.47.0 - AVFilterLink
1015 Make the AVFilterLink fields srcpad and dstpad store the pointers to
1016 the source and destination pads, rather than their indexes.
1017
1018 2010-09-27 - 372e288 - lavu 50.30.0 - av_get_token()
1019 Move av_get_token() from libavfilter/parseutils.h to
1020 libavutil/avstring.h.
1021
1022 2010-09-26 - 635d4ae - lsws 0.12.0 - swscale.h
1023 Add the functions sws_alloc_context() and sws_init_context().
1024
1025 2010-09-26 - 6ed0404 - lavu 50.29.0 - opt.h
1026 Move libavcodec/opt.h to libavutil/opt.h.
1027
1028 2010-09-24 - 1c1c80f - lavu 50.28.0 - av_log_set_flags()
1029 Default of av_log() changed due to many problems to the old no repeat
1030 detection. Read the docs of AV_LOG_SKIP_REPEATED in log.h before
1031 enabling it for your app!.
1032
1033 2010-09-24 - f66eb58 - lavc 52.90.0 - av_opt_show2()
1034 Deprecate av_opt_show() in favor or av_opt_show2().
1035
1036 2010-09-14 - bc6f0af - lavu 50.27.0 - av_popcount()
1037 Add av_popcount() to libavutil/common.h.
1038
1039 2010-09-08 - c6c98d0 - lavu 50.26.0 - av_get_cpu_flags()
1040 Add av_get_cpu_flags().
1041
1042 2010-09-07 - 34017fd - lavcore 0.9.0 - av_image_copy()
1043 Add av_image_copy().
1044
1045 2010-09-07 - 9686abb - lavcore 0.8.0 - av_image_copy_plane()
1046 Add av_image_copy_plane().
1047
1048 2010-09-07 - 9b7269e - lavcore 0.7.0 - imgutils.h
1049 Adopt hierarchical scheme for the imgutils.h function names,
1050 deprecate the old names.
1051
1052 2010-09-04 - 7160bb7 - lavu 50.25.0 - AV_CPU_FLAG_*
1053 Deprecate the FF_MM_* flags defined in libavcodec/avcodec.h in favor
1054 of the AV_CPU_FLAG_* flags defined in libavutil/cpu.h.
1055
1056 2010-08-26 - 5da19b5 - lavc 52.87.0 - avcodec_get_channel_layout()
1057 Add avcodec_get_channel_layout() in audioconvert.h.
1058
1059 2010-08-20 - e344336 - lavcore 0.6.0 - av_fill_image_max_pixsteps()
1060 Rename av_fill_image_max_pixstep() to av_fill_image_max_pixsteps().
1061
1062 2010-08-18 - a6ddf8b - lavcore 0.5.0 - av_fill_image_max_pixstep()
1063 Add av_fill_image_max_pixstep() in imgutils.h.
1064
1065 2010-08-17 - 4f2d2e4 - lavu 50.24.0 - AV_NE()
1066 Add the AV_NE macro.
1067
1068 2010-08-17 - ad2c950 - lavfi 1.36.0 - audio framework
1069 Implement AVFilterBufferRefAudioProps struct for audio properties,
1070 get_audio_buffer(), filter_samples() functions and related changes.
1071
1072 2010-08-12 - 81c1eca - lavcore 0.4.0 - av_get_image_linesize()
1073 Add av_get_image_linesize() in imgutils.h.
1074
1075 2010-08-11 - c1db7bf - lavfi 1.34.0 - AVFilterBufferRef
1076 Resize data and linesize arrays in AVFilterBufferRef to 8.
1077
1078 This change breaks libavfilter API/ABI.
1079
1080 2010-08-11 - 9f08d80 - lavc 52.85.0 - av_picture_data_copy()
1081 Add av_picture_data_copy in avcodec.h.
1082
1083 2010-08-11 - 84c0386 - lavfi 1.33.0 - avfilter_open()
1084 Change avfilter_open() signature:
1085 AVFilterContext *avfilter_open(AVFilter *filter, const char *inst_name) ->
1086 int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);
1087
1088 This change breaks libavfilter API/ABI.
1089
1090 2010-08-11 - cc80caf - lavfi 1.32.0 - AVFilterBufferRef
1091 Add a type field to AVFilterBufferRef, and move video specific
1092 properties to AVFilterBufferRefVideoProps.
1093
1094 This change breaks libavfilter API/ABI.
1095
1096 2010-08-07 - 5d4890d - lavfi 1.31.0 - AVFilterLink
1097 Rename AVFilterLink fields:
1098 AVFilterLink.srcpic -> AVFilterLink.src_buf
1099 AVFilterLink.cur_pic -> AVFilterLink.cur_buf
1100 AVFilterLink.outpic -> AVFilterLink.out_buf
1101
1102 2010-08-07 - 7fce481 - lavfi 1.30.0
1103 Rename functions and fields:
1104 avfilter_(un)ref_pic -> avfilter_(un)ref_buffer
1105 avfilter_copy_picref_props -> avfilter_copy_buffer_ref_props
1106 AVFilterBufferRef.pic -> AVFilterBufferRef.buffer
1107
1108 2010-08-07 - ecc8dad - lavfi 1.29.0 - AVFilterBufferRef
1109 Rename AVFilterPicRef to AVFilterBufferRef.
1110
1111 2010-08-07 - d54e094 - lavfi 1.28.0 - AVFilterBuffer
1112 Move format field from AVFilterBuffer to AVFilterPicRef.
1113
1114 2010-08-06 - bf176f5 - lavcore 0.3.0 - av_check_image_size()
1115 Deprecate avcodec_check_dimensions() in favor of the function
1116 av_check_image_size() defined in libavcore/imgutils.h.
1117
1118 2010-07-30 - 56b5e9d - lavfi 1.27.0 - AVFilterBuffer
1119 Increase size of the arrays AVFilterBuffer.data and
1120 AVFilterBuffer.linesize from 4 to 8.
1121
1122 This change breaks libavfilter ABI.
1123
1124 2010-07-29 - e7bd48a - lavcore 0.2.0 - imgutils.h
1125 Add functions av_fill_image_linesizes() and
1126 av_fill_image_pointers(), declared in libavcore/imgutils.h.
1127
1128 2010-07-27 - 126b638 - lavcore 0.1.0 - parseutils.h
1129 Deprecate av_parse_video_frame_size() and av_parse_video_frame_rate()
1130 defined in libavcodec in favor of the newly added functions
1131 av_parse_video_size() and av_parse_video_rate() declared in
1132 libavcore/parseutils.h.
1133
1134 2010-07-23 - 4485247 - lavu 50.23.0 - mathematics.h
1135 Add the M_PHI constant definition.
1136
1137 2010-07-22 - bdab614 - lavfi 1.26.0 - media format generalization
1138 Add a type field to AVFilterLink.
1139
1140 Change the field types:
1141 enum PixelFormat format -> int format in AVFilterBuffer
1142 enum PixelFormat *formats -> int *formats in AVFilterFormats
1143 enum PixelFormat *format -> int format in AVFilterLink
1144
1145 Change the function signatures:
1146 AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts); ->
1147 AVFilterFormats *avfilter_make_format_list(const int *fmts);
1148
1149 int avfilter_add_colorspace(AVFilterFormats **avff, enum PixelFormat pix_fmt); ->
1150 int avfilter_add_format (AVFilterFormats **avff, int fmt);
1151
1152 AVFilterFormats *avfilter_all_colorspaces(void); ->
1153 AVFilterFormats *avfilter_all_formats (enum AVMediaType type);
1154
1155 This change breaks libavfilter API/ABI.
1156
1157 2010-07-21 - aac6ca6 - lavcore 0.0.0
1158 Add libavcore.
1159
1160 2010-07-17 - b5c582f - lavfi 1.25.0 - AVFilterBuffer
1161 Remove w and h fields from AVFilterBuffer.
1162
1163 2010-07-17 - f0d77b2 - lavfi 1.24.0 - AVFilterBuffer
1164 Rename AVFilterPic to AVFilterBuffer.
1165
1166 2010-07-17 - 57fe80f - lavf 52.74.0 - url_fskip()
1167 Make url_fskip() return an int error code instead of void.
1168
1169 2010-07-11 - 23940f1 - lavc 52.83.0
1170 Add AVCodecContext.lpc_type and AVCodecContext.lpc_passes fields.
1171 Add AVLPCType enum.
1172 Deprecate AVCodecContext.use_lpc.
1173
1174 2010-07-11 - e1d7c88 - lavc 52.82.0 - avsubtitle_free()
1175 Add a function for free the contents of a AVSubtitle generated by
1176 avcodec_decode_subtitle.
1177
1178 2010-07-11 - b91d08f - lavu 50.22.0 - bswap.h and intreadwrite.h
1179 Make the bswap.h and intreadwrite.h API public.
1180
1181 2010-07-08 - ce1cd1c - lavu 50.21.0 - pixdesc.h
1182 Rename read/write_line() to av_read/write_image_line().
1183
1184 2010-07-07 - 4d508e4 - lavfi 1.21.0 - avfilter_copy_picref_props()
1185 Add avfilter_copy_picref_props().
1186
1187 2010-07-03 - 2d525ef - lavc 52.79.0
1188 Add FF_COMPLIANCE_UNOFFICIAL and change all instances of
1189 FF_COMPLIANCE_INOFFICIAL to use FF_COMPLIANCE_UNOFFICIAL.
1190
1191 2010-07-02 - 89eec74 - lavu 50.20.0 - lfg.h
1192 Export av_lfg_init(), av_lfg_get(), av_mlfg_get(), and av_bmg_get() through
1193 lfg.h.
1194
1195 2010-06-28 - a52e2c3 - lavfi 1.20.1 - av_parse_color()
1196 Extend av_parse_color() syntax, make it accept an alpha value specifier and
1197 set the alpha value to 255 by default.
1198
1199 2010-06-22 - 735cf6b - lavf 52.71.0 - URLProtocol.priv_data_size, priv_data_class
1200 Add priv_data_size and priv_data_class to URLProtocol.
1201
1202 2010-06-22 - ffbb289 - lavf 52.70.0 - url_alloc(), url_connect()
1203 Add url_alloc() and url_connect().
1204
1205 2010-06-22 - 9b07a2d - lavf 52.69.0 - av_register_protocol2()
1206 Add av_register_protocol2(), deprecating av_register_protocol().
1207
1208 2010-06-09 - 65db058 - lavu 50.19.0 - av_compare_mod()
1209 Add av_compare_mod() to libavutil/mathematics.h.
1210
1211 2010-06-05 - 0b99215 - lavu 50.18.0 - eval API
1212 Make the eval API public.
1213
1214 2010-06-04 - 31878fc - lavu 50.17.0 - AV_BASE64_SIZE
1215 Add AV_BASE64_SIZE() macro.
1216
1217 2010-06-02 - 7e566bb - lavc 52.73.0 - av_get_codec_tag_string()
1218 Add av_get_codec_tag_string().
1219
1220 2010-06-01 - 2b99142 - lsws 0.11.0 - convertPalette API
1221 Add sws_convertPalette8ToPacked32() and sws_convertPalette8ToPacked24().
1222
1223 2010-05-26 - 93ebfee - lavc 52.72.0 - CODEC_CAP_EXPERIMENTAL
1224 Add CODEC_CAP_EXPERIMENTAL flag.
1225 NOTE: this was backported to 0.6
1226
1227 2010-05-23 - 9977863 - lavu 50.16.0 - av_get_random_seed()
1228 Add av_get_random_seed().
1229
1230 2010-05-18 - 796ac23 - lavf 52.63.0 - AVFMT_FLAG_RTP_HINT
1231 Add AVFMT_FLAG_RTP_HINT as possible value for AVFormatContext.flags.
1232 NOTE: this was backported to 0.6
1233
1234 2010-05-09 - b6bc205 - lavfi 1.20.0 - AVFilterPicRef
1235 Add interlaced and top_field_first fields to AVFilterPicRef.
1236
1237 ------------------------------8<-------------------------------------
1238 0.6 branch was cut here
1239 ----------------------------->8--------------------------------------
1240
1241 2010-05-01 - 8e2ee18 - lavf 52.62.0 - probe function
1242 Add av_probe_input_format2 to API, it allows ignoring probe
1243 results below given score and returns the actual probe score.
1244
1245 2010-04-01 - 3dd6180 - lavf 52.61.0 - metadata API
1246 Add a flag for av_metadata_set2() to disable overwriting of
1247 existing tags.
1248
1249 2010-04-01 - 0fb49b5 - lavc 52.66.0
1250 Add avcodec_get_edge_width().
1251
1252 2010-03-31 - d103218 - lavc 52.65.0
1253 Add avcodec_copy_context().
1254
1255 2010-03-31 - 1a70d12 - lavf 52.60.0 - av_match_ext()
1256 Make av_match_ext() public.
1257
1258 2010-03-31 - 1149150 - lavu 50.14.0 - AVMediaType
1259 Move AVMediaType enum from libavcodec to libavutil.
1260
1261 2010-03-31 - 72415b2 - lavc 52.64.0 - AVMediaType
1262 Define AVMediaType enum, and use it instead of enum CodecType, which
1263 is deprecated and will be dropped at the next major bump.
1264
1265 2010-03-25 - 8795823 - lavu 50.13.0 - av_strerror()
1266 Implement av_strerror().
1267
1268 2010-03-23 - e1484eb - lavc 52.60.0 - av_dct_init()
1269 Support DCT-I and DST-I.
1270
1271 2010-03-15 - b8819c8 - lavf 52.56.0 - AVFormatContext.start_time_realtime
1272 Add AVFormatContext.start_time_realtime field.
1273
1274 2010-03-13 - 5bb5c1d - lavfi 1.18.0 - AVFilterPicRef.pos
1275 Add AVFilterPicRef.pos field.
1276
1277 2010-03-13 - 60c144f - lavu 50.12.0 - error.h
1278 Move error code definitions from libavcodec/avcodec.h to
1279 the new public header libavutil/error.h.
1280
1281 2010-03-07 - c709483 - lavc 52.56.0 - avfft.h
1282 Add public FFT interface.
1283
1284 2010-03-06 - ac6ef86 - lavu 50.11.0 - av_stristr()
1285 Add av_stristr().
1286
1287 2010-03-03 - 4b83fc0 - lavu 50.10.0 - av_tree_enumerate()
1288 Add av_tree_enumerate().
1289
1290 2010-02-07 - b687c1a - lavu 50.9.0 - av_compare_ts()
1291 Add av_compare_ts().
1292
1293 2010-02-05 - 3f3dc76 - lsws 0.10.0 - sws_getCoefficients()
1294 Add sws_getCoefficients().
1295
1296 2010-02-01 - ca76a11 - lavf 52.50.0 - metadata API
1297 Add a list of generic tag names, change 'author' -> 'artist',
1298 'year' -> 'date'.
1299
1300 2010-01-30 - 80a07f6 - lavu 50.8.0 - av_get_pix_fmt()
1301 Add av_get_pix_fmt().
1302
1303 2010-01-21 - 01cc47d - lsws 0.9.0 - sws_scale()
1304 Change constness attributes of sws_scale() parameters.
1305
1306 2010-01-10 - 3fb8e77 - lavfi 1.15.0 - avfilter_graph_config_links()
1307 Add a log_ctx parameter to avfilter_graph_config_links().
1308
1309 2010-01-07 - 8e9767f - lsws 0.8.0 - sws_isSupported{In,Out}put()
1310 Add sws_isSupportedInput() and sws_isSupportedOutput() functions.
1311
1312 2010-01-06 - c1d662f - lavfi 1.14.0 - avfilter_add_colorspace()
1313 Change the avfilter_add_colorspace() signature, make it accept an
1314 (AVFilterFormats **) rather than an (AVFilterFormats *) as before.
1315
1316 2010-01-03 - 4fd1f18 - lavfi 1.13.0 - avfilter_add_colorspace()
1317 Add avfilter_add_colorspace().
1318
1319 2010-01-02 - 8eb631f - lavf 52.46.0 - av_match_ext()
1320 Add av_match_ext(), it should be used in place of match_ext().
1321
1322 2010-01-01 - a1f547b - lavf 52.45.0 - av_guess_format()
1323 Add av_guess_format(), it should be used in place of guess_format().
1324
1325 2009-12-13 - a181981 - lavf 52.43.0 - metadata API
1326 Add av_metadata_set2(), AV_METADATA_DONT_STRDUP_KEY and
1327 AV_METADATA_DONT_STRDUP_VAL.
1328
1329 2009-12-13 - 277c733 - lavu 50.7.0 - avstring.h API
1330 Add av_d2str().
1331
1332 2009-12-13 - 02b398e - lavc 52.42.0 - AVStream
1333 Add avg_frame_rate.
1334
1335 2009-12-12 - 3ba69a1 - lavu 50.6.0 - av_bmg_next()
1336 Introduce the av_bmg_next() function.
1337
1338 2009-12-05 - a13a543 - lavfi 1.12.0 - avfilter_draw_slice()
1339 Add a slice_dir parameter to avfilter_draw_slice().
1340
1341 2009-11-26 - 4cc3f6a - lavfi 1.11.0 - AVFilter
1342 Remove the next field from AVFilter, this is not anymore required.
1343
1344 2009-11-25 - 1433c4a - lavfi 1.10.0 - avfilter_next()
1345 Introduce the avfilter_next() function.
1346
1347 2009-11-25 - 86a60fa - lavfi 1.9.0 - avfilter_register()
1348 Change the signature of avfilter_register() to make it return an
1349 int. This is required since now the registration operation may fail.
1350
1351 2009-11-25 - 74a0059 - lavu 50.5.0 - pixdesc.h API
1352 Make the pixdesc.h API public.
1353
1354 2009-10-27 - 243110f - lavfi 1.5.0 - AVFilter.next
1355 Add a next field to AVFilter, this is used for simplifying the
1356 registration and management of the registered filters.
1357
1358 2009-10-23 - cccd292 - lavfi 1.4.1 - AVFilter.description
1359 Add a description field to AVFilter.
1360
1361 2009-10-19 - 6b5dc05 - lavfi 1.3.0 - avfilter_make_format_list()
1362 Change the interface of avfilter_make_format_list() from
1363 avfilter_make_format_list(int n, ...) to
1364 avfilter_make_format_list(enum PixelFormat *pix_fmts).
1365
1366 2009-10-18 - 0eb4ff9 - lavfi 1.0.0 - avfilter_get_video_buffer()
1367 Make avfilter_get_video_buffer() recursive and add the w and h
1368 parameters to it.
1369
1370 2009-10-07 - 46c40e4 - lavfi 0.5.1 - AVFilterPic
1371 Add w and h fields to AVFilterPic.
1372
1373 2009-06-22 - 92400be - lavf 52.34.1 - AVFormatContext.packet_size
1374 This is now an unsigned int instead of a signed int.
1375
1376 2009-06-19 - a4276ba - lavc 52.32.0 - AVSubtitle.pts
1377 Add a pts field to AVSubtitle which gives the subtitle packet pts
1378 in AV_TIME_BASE. Some subtitle de-/encoders (e.g. XSUB) will
1379 not work right without this.
1380
1381 2009-06-03 - 8f3f2e0 - lavc 52.30.2 - AV_PKT_FLAG_KEY
1382 PKT_FLAG_KEY has been deprecated and will be dropped at the next
1383 major version. Use AV_PKT_FLAG_KEY instead.
1384
1385 2009-06-01 - f988ce6 - lavc 52.30.0 - av_lockmgr_register()
1386 av_lockmgr_register() can be used to register a callback function
1387 that lavc (and in the future, libraries that depend on lavc) can use
1388 to implement mutexes. The application should provide a callback function
1389 that implements the AV_LOCK_* operations described in avcodec.h.
1390 When the lock manager is registered, FFmpeg is guaranteed to behave
1391 correctly in a multi-threaded application.
1392
1393 2009-04-30 - ce1d9c8 - lavc 52.28.0 - av_free_packet()
1394 av_free_packet() is no longer an inline function. It is now exported.
1395
1396 2009-04-11 - 80d403f - lavc 52.25.0 - deprecate av_destruct_packet_nofree()
1397 Please use NULL instead. This has been supported since r16506
1398 (lavf > 52.23.1, lavc > 52.10.0).
1399
1400 2009-04-07 - 7a00bba - lavc 52.23.0 - avcodec_decode_video/audio/subtitle
1401 The old decoding functions are deprecated, all new code should use the
1402 new functions avcodec_decode_video2(), avcodec_decode_audio3() and
1403 avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt
1404 argument instead of a const uint8_t *buf / int buf_size pair.
1405
1406 2009-04-03 - 7b09db3 - lavu 50.3.0 - av_fifo_space()
1407 Introduce the av_fifo_space() function.
1408
1409 2009-04-02 - fabd246 - lavc 52.23.0 - AVPacket
1410 Move AVPacket declaration from libavformat/avformat.h to
1411 libavcodec/avcodec.h.
1412
1413 2009-03-22 - 6e08ca9 - lavu 50.2.0 - RGB32 pixel formats
1414 Convert the pixel formats PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR,
1415 PIX_FMT_BGRA, which were defined as macros, into enum PixelFormat values.
1416 Conversely PIX_FMT_RGB32, PIX_FMT_RGB32_1, PIX_FMT_BGR32 and
1417 PIX_FMT_BGR32_1 are now macros.
1418 avcodec_get_pix_fmt() now recognizes the "rgb32" and "bgr32" aliases.
1419 Re-sort the enum PixelFormat list accordingly.
1420 This change breaks API/ABI backward compatibility.
1421
1422 2009-03-22 - f82674e - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants
1423 Add the enum PixelFormat values:
1424 PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,
1425 PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.
1426
1427 2009-03-21 - ee6624e - lavu 50.0.0 - av_random*
1428 The Mersenne Twister PRNG implemented through the av_random* functions
1429 was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions
1430 instead.
1431
1432 2009-03-08 - 41dd680 - lavu 50.0.0 - AVFifoBuffer
1433 av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped
1434 and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write
1435 and av_fifo_realloc2.
1436 In addition, the order of the function arguments of av_fifo_generic_read
1437 was changed to match av_fifo_generic_write.
1438 The AVFifoBuffer/struct AVFifoBuffer may only be used in an opaque way by
1439 applications, they may not use sizeof() or directly access members.
1440
1441 2009-03-01 - ec26457 - lavf 52.31.0 - Generic metadata API
1442 Introduce a new metadata API (see av_metadata_get() and friends).
1443 The old API is now deprecated and should not be used anymore. This especially
1444 includes the following structure fields:
1445 - AVFormatContext.title
1446 - AVFormatContext.author
1447 - AVFormatContext.copyright
1448 - AVFormatContext.comment
1449 - AVFormatContext.album
1450 - AVFormatContext.year
1451 - AVFormatContext.track
1452 - AVFormatContext.genre
1453 - AVStream.language
1454 - AVStream.filename
1455 - AVProgram.provider_name
1456 - AVProgram.name
1457 - AVChapter.title