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: 2013-03-xx
7 libavfilter: 2013-12-xx
8 libavformat: 2013-03-xx
9 libavresample: 2012-10-05
10 libswscale: 2011-06-20
14 API changes, most recent first:
16 2014-05-24 - xxxxxxx - lavf 55.19.0 - avformat.h
17 Add strict_std_compliance and related AVOptions to support experimental
20 2014-05-19 - xxxxxxx - lavf 55.18.0 - avformat.h
21 Add av_stream_get_side_data() to access stream-level side data
22 in the same way as av_packet_get_side_data().
24 2014-05-xx - xxxxxxx - lavu 53.15.0 - frame.h, display.h
25 Add AV_FRAME_DATA_DISPLAYMATRIX for exporting frame-level
26 spatial rendering on video frames for proper display.
28 2014-05-xx - xxxxxxx - lavc 55.53.0 - avcodec.h
29 Add AV_PKT_DATA_DISPLAYMATRIX for exporting packet-level
30 spatial rendering on video frames for proper display.
32 2014-05-xx - xxxxxxx - lavf 55.17.1 - avformat.h
33 Deprecate AVStream.pts and the AVFrac struct, which was its only use case.
34 Those fields were poorly defined and not meant to be public, so there is
35 no replacement for them.
37 2014-05-18 - fd05602 - lavc 55.52.0 - avcodec.h
38 Add avcodec_free_context(). From now on it should be used for freeing
41 2014-05-15 - 0c1959b - lavf 55.17.0 - avformat.h
42 Add AVMFT_FLAG_BITEXACT flag. Muxers now use it instead of checking
43 CODEC_FLAG_BITEXACT on the first stream.
45 2014-05-11 - 66e6c8a - lavu 53.14.0 - pixfmt.h
46 Add AV_PIX_FMT_VDA for new-style VDA acceleration.
48 2014-05-01 - a2941c8 - lavc 55.50.3 - avcodec.h
49 Deprecate CODEC_FLAG_MV0. It is replaced by the flag "mv0" in the
50 "mpv_flags" private option of the mpegvideo encoders.
52 2014-05-01 - 6484149 - lavc 55.50.2 - avcodec.h
53 Deprecate CODEC_FLAG_GMC. It is replaced by the "gmc" private option of the
56 2014-05-01 - b2c3171 - lavc 55.50.1 - avcodec.h
57 Deprecate CODEC_FLAG_NORMALIZE_AQP. It is replaced by the flag "naq" in the
58 "mpv_flags" private option of the mpegvideo encoders.
60 2014-05-01 - 5fcceda - avcodec.h
61 Deprecate CODEC_FLAG_INPUT_PRESERVED. Its functionality is replaced by passing
62 reference-counted frames to encoders.
64 2014-04-28 - ed4b757 - lavc 55.50.0 - dxva2.h
65 Add FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO for old Intel GPUs.
67 2014-04-22 - 502512e - lavu 53.13.0 - avutil.h
68 Add av_get_time_base_q().
70 2014-04-17 - 0983d48 - lavu 53.12.0 - crc.h
71 Add AV_CRC_16_ANSI_LE crc variant.
73 2014-04-07 - 8b17243 - lavu 53.11.0 - pixfmt.h
74 Add AV_PIX_FMT_YVYU422 pixel format.
76 2014-04-04 - 8542f9c - lavu 53.10.0 - replaygain.h
77 Full scale for peak values is now 100000 (instead of UINT32_MAX) and values
80 2014-04-03 - 7763118 - lavu 53.09.0 - log.h
81 Add AV_LOG(c) macro to have 256 color debug messages.
83 2014-03-24 - d161ae0 - lavu 53.08.0 - frame.h
84 Add av_frame_remove_side_data() for removing a single side data
85 instance from a frame.
87 2014-03-24 - 5a7e35d - lavu 53.07.0 - frame.h, replaygain.h
88 Add AV_FRAME_DATA_REPLAYGAIN for exporting replaygain tags.
89 Add a new header replaygain.h with the AVReplayGain struct.
91 2014-03-24 - 5a7e35d - lavc 55.36.0 - avcodec.h
92 Add AV_PKT_DATA_REPLAYGAIN for exporting replaygain tags.
94 2014-03-24 - 25b3258 - lavf 55.13.0 - avformat.h
95 Add AVStream.side_data and AVStream.nb_side_data for exporting stream-global
96 side data (e.g. replaygain tags, video rotation)
98 2014-03-24 - 0e2c3ee - lavc 55.35.0 - avcodec.h
99 Give the name AVPacketSideData to the previously anonymous struct used for
102 2014-03-16 - 1481d24 - lavu 53.06.0 - pixfmt.h
103 Add RGBA64 pixel format and variants.
105 2014-02-24 - 1155fd0 - lavu 53.05.0 - frame.h
106 Add av_frame_copy() for copying the frame data.
108 2014-02-22 - 7e86c27 - lavr 1.2.0 - avresample.h
109 Add avresample_is_open() for checking whether a resample context is open.
111 2014-02-19 - c3ecd96 - lavu 53.04.0 - opt.h
112 Add AV_OPT_FLAG_EXPORT and AV_OPT_FLAG_READONLY to mark options meant (only)
115 2014-02-19 - 6bb8720 - lavu 53.03.01 - opt.h
116 Deprecate unused AV_OPT_FLAG_METADATA.
118 ------------------------------8<-------------------------------------
119 10 branch was cut here
120 ----------------------------->8--------------------------------------
122 2014-02-15 - c98f316 - lavu 53.3.0 - frame.h
123 Add AV_FRAME_DATA_DOWNMIX_INFO value to the AVFrameSideDataType enum and
124 downmix_info.h API, which identify downmix-related metadata.
126 2014-02-04 - d9ae103 - lavf 55.11.0 - avformat.h
127 Add AVFormatContext.max_interleave_delta for controlling amount of buffering
130 2014-01-20 - 93c553c - lavc 55.32.1 - avcodec.h
131 Edges are not required anymore on video buffers allocated by get_buffer2()
132 (i.e. as if the CODEC_FLAG_EMU_EDGE flag was always on). Deprecate
133 CODEC_FLAG_EMU_EDGE and avcodec_get_edge_width().
135 2014-01-05 - 5b4797a - lavu 53.2.0 - frame.h
136 Add AV_FRAME_DATA_MATRIXENCODING value to the AVFrameSideDataType enum, which
137 identifies AVMatrixEncoding data.
139 2014-01-05 - 5c437fb - lavu 53.1.0 - channel_layout.h
140 Add values for various Dolby flags to the AVMatrixEncoding enum.
142 2013-12-20 - 2a41826 - lavc 55.30.0 - avcodec.h
145 2013-12-11 - b9fb59d,9431356,d7b3ee9 - lavc 55.28.1 - avcodec.h
146 av_frame_alloc(), av_frame_unref() and av_frame_free() now can and should be
147 used instead of avcodec_alloc_frame(), avcodec_get_frame_defaults() and
148 avcodec_free_frame() respectively. The latter three functions are deprecated.
150 2013-12-09 - 7e244c6- - lavu 52.20.0 - frame.h
151 Add AV_FRAME_DATA_STEREO3D value to the AVFrameSideDataType enum and
152 stereo3d.h API, that identify codec-independent stereo3d information.
154 2013-11-26 - 1eaac1d- - lavu 52.19.0 - frame.h
155 Add AV_FRAME_DATA_A53_CC value to the AVFrameSideDataType enum, which
156 identifies ATSC A53 Part 4 Closed Captions data.
158 2013-11-14 - cce3e0a - lavu 52.18.0 - mem.h
159 Move av_fast_malloc() and av_fast_realloc() for libavcodec to libavutil.
161 2013-11-14 - 8941971 - lavc 55.27.0 - avcodec.h
162 Deprecate AVCodecContext.error_rate, it is replaced by the 'error_rate'
163 private option of the mpegvideo encoder family.
165 2013-11-14 - 728c465 - lavc 55.26.0 - vdpau.h
166 Add av_vdpau_get_profile().
167 Add av_vdpau_alloc_context(). This function must from now on be
168 used for allocating AVVDPAUContext.
170 2013-11-04 - cd8f772 - lavc 55.25.0 - avcodec.h
171 Add ITU-R BT.2020 and other not yet included values to color primaries,
172 transfer characteristics and colorspaces.
174 2013-10-31 - 28096e0 - lavu 52.17.0 - frame.h
175 Add AVFrame.flags and AV_FRAME_FLAG_CORRUPT.
177 2013-09-28 - 0767bfd - lavfi 3.11.0 - avfilter.h
178 Add AVFilterGraph.execute and AVFilterGraph.opaque for custom slice threading
181 2013-09-21 - e208e6d - lavu 52.16.0 - pixfmt.h
182 Add interleaved 4:2:2 8/10-bit formats AV_PIX_FMT_NV16 and
185 2013-09-16 - 3feb3d6 - lavu 52.15.0 - mem.h
188 2013-08-10 - 5a9a9d4 - lavc 55.16.0 - avcodec.h
189 Extend AVPacket API with av_packet_unref, av_packet_ref,
190 av_packet_move_ref, av_packet_copy_props, av_packet_free_side_data.
192 2013-08-05 - f824535 - lavc 55.13.0 - avcodec.h
193 Deprecate the bitstream-related members from struct AVVDPAUContext.
194 The bistream buffers no longer need to be explicitly freed.
196 2013-08-05 - 549294f - lavc 55.12.0 - avcodec.h
197 Deprecate the CODEC_CAP_HWACCEL_VDPAU codec capability. Use CODEC_CAP_HWACCEL
198 and select the AV_PIX_FMT_VDPAU format with get_format() instead.
200 2013-08-05 - a0ad5d0 - lavu 52.14.0 - pixfmt.h
201 Deprecate AV_PIX_FMT_VDPAU_*. Use AV_PIX_FMT_VDPAU instead.
203 2013-08-02 - a8b1927 - lavc 55.11.0 - avcodec.h
204 Add output_picture_number to AVCodecParserContext.
206 2013-06-24 - 95d5246 - lavc 55.10.0 - avcodec.h
207 Add MPEG-2 AAC profiles
209 2013-06-04 - fc962d4 - lavu 52.13.0 - mem.h
210 Add av_realloc_array and av_reallocp_array
212 2013-05-24 - 129bb23 - lavfi 3.10.0 - avfilter.h
213 Add support for slice multithreading to lavfi. Filters supporting threading
214 are marked with AVFILTER_FLAG_SLICE_THREADS.
215 New fields AVFilterContext.thread_type, AVFilterGraph.thread_type and
216 AVFilterGraph.nb_threads (accessible directly or through AVOptions) may be
217 used to configure multithreading.
219 2013-05-24 - 2a6eaea - lavu 52.12.0 - cpu.h
220 Add av_cpu_count() function for getting the number of logical CPUs.
222 2013-05-24 - b493847 - lavc 55.7.0 - avcodec.h
223 Add picture_structure to AVCodecParserContext.
225 2013-05-15 - e6c4ac7 - lavu 52.11.0 - pixdesc.h
226 Replace PIX_FMT_* flags with AV_PIX_FMT_FLAG_*.
228 2013-04-03 - 507b1e4 - lavc 55.4.0 - avcodec.h
229 Add field_order to AVCodecParserContext.
231 2013-04-19 - 5e83d9a - lavc 55.2.0 - avcodec.h
232 Add CODEC_FLAG_UNALIGNED to allow decoders to produce unaligned output.
234 2013-04-11 - lavfi 3.8.0
235 38f0c07 - Move all content from avfiltergraph.h to avfilter.h. Deprecate
236 avfilterhraph.h, user applications should include just avfilter.h
237 bc1a985 - Add avfilter_graph_alloc_filter(), deprecate avfilter_open() and
238 avfilter_graph_add_filter().
239 1113672 - Add AVFilterContext.graph pointing to the AVFilterGraph that contains the
241 48a5ada - Add avfilter_init_str(), deprecate avfilter_init_filter().
242 1ba95a9 - Add avfilter_init_dict().
243 7cdd737 - Add AVFilter.flags field and AVFILTER_FLAG_DYNAMIC_{INPUTS,OUTPUTS} flags.
244 7e8fe4b - Add avfilter_pad_count() for counting filter inputs/outputs.
245 fa2a34c - Add avfilter_next(), deprecate av_filter_next().
246 Deprecate avfilter_uninit().
248 2013-04-09 - lavfi 3.7.0 - avfilter.h
249 b439c99 - Add AVFilter.priv_class for exporting filter options through the
250 AVOptions API in the similar way private options work in lavc and lavf.
251 8114c10 - Add avfilter_get_class().
252 Switch all filters to use AVOptions.
254 2013-03-19 - 2c328a9 - lavu 52.9.0 - pixdesc.h
255 Add av_pix_fmt_count_planes() function for counting planes in a pixel format.
257 2013-03-16 - 42c7c61 - lavfi 3.6.0
258 Add AVFilterGraph.nb_filters, deprecate AVFilterGraph.filter_count.
260 2013-03-08 - Reference counted buffers - lavu 52.8.0, lavc 55.0.0, lavf 55.0.0,
261 lavd 54.0.0, lavfi 3.5.0
262 8e401db, 1cec062 - add a new API for reference counted buffers and buffer
263 pools (new header libavutil/buffer.h).
264 1afddbe - add AVPacket.buf to allow reference counting for the AVPacket data.
265 Add av_packet_from_data() function for constructing packets from
267 7ecc2d4 - move AVFrame from lavc to lavu (new header libavutil/frame.h), add
268 AVFrame.buf/extended_buf to allow reference counting for the AVFrame
269 data. Add new API for working with reference-counted AVFrames.
270 759001c - add the refcounted_frames field to AVCodecContext to make audio and
271 video decoders return reference-counted frames. Add get_buffer2()
272 callback to AVCodecContext which allocates reference-counted frames.
273 Add avcodec_default_get_buffer2() as the default get_buffer2()
275 Deprecate AVCodecContext.get_buffer() / release_buffer() /
276 reget_buffer(), avcodec_default_get_buffer(),
277 avcodec_default_reget_buffer(), avcodec_default_release_buffer().
278 Remove avcodec_default_free_buffers(), which should not have ever
279 been called from outside of lavc.
280 Deprecate the following AVFrame fields:
281 * base -- is now stored in AVBufferRef
282 * reference, type, buffer_hints -- are unnecessary in the new API
283 * hwaccel_picture_private, owner, thread_opaque -- should not
284 have been acessed from outside of lavc
285 * qscale_table, qstride, qscale_type, mbskip_table, motion_val,
286 mb_type, dct_coeff, ref_index -- mpegvideo-specific tables,
287 which are not exported anymore.
288 7e35037 - switch libavfilter to use AVFrame instead of AVFilterBufferRef. Add
289 av_buffersrc_add_frame(), deprecate av_buffersrc_buffer().
290 Add av_buffersink_get_frame() and av_buffersink_get_samples(),
291 deprecate av_buffersink_read() and av_buffersink_read_samples().
292 Deprecate AVFilterBufferRef and all functions for working with it.
294 2013-03-17 - 12c5c1d - lavu 52.8.0 - avstring.h
295 Add av_isdigit, av_isgraph, av_isspace, av_isxdigit.
297 2013-02-23 - 9f12235 - lavfi 3.4.0 - avfiltergraph.h
298 Add resample_lavr_opts to AVFilterGraph for setting libavresample options
299 for auto-inserted resample filters.
301 2013-01-25 - 38c1466 - lavu 52.7.0 - dict.h
302 Add av_dict_parse_string() to set multiple key/value pairs at once from a
305 2013-01-25 - b85a5e8 - lavu 52.6.0 - avstring.h
308 2013-01-15 - 8ee288d - lavu 52.5.0 - hmac.h
311 2013-01-13 - 44e065d - lavc 54.36.0 - vdpau.h
312 Add AVVDPAUContext struct for VDPAU hardware-accelerated decoding.
314 2013-01-12 - 169fb94 - lavu 52.4.0 - pixdesc.h
315 Add AV_PIX_FMT_VDPAU flag.
317 2013-01-07 - 074a00d - lavr 1.1.0
318 Add avresample_set_channel_mapping() for input channel reordering,
319 duplication, and silencing.
321 ------------------------------8<-------------------------------------
322 9 branch was cut here
323 ----------------------------->8--------------------------------------
325 2012-12-29 - d8fd06c - lavu 52.3.0 - avstring.h
326 Add av_basename() and av_dirname().
328 2012-11-11 - 5980f5d - lavu 52.2.0 - audioconvert.h
329 Rename audioconvert.h to channel_layout.h. audioconvert.h is now deprecated.
331 2012-11-05 - dfde8a3 - lavu 52.1.0 - intmath.h
332 Add av_ctz() for trailing zero bit count
334 2012-10-21 - a893655 - lavu 51.45.0 - error.h
335 Add AVERROR_EXPERIMENTAL
337 2012-10-12 - d2fcb35 - lavu 51.44.0 - pixdesc.h
338 Add functions for accessing pixel format descriptors.
339 Accessing the av_pix_fmt_descriptors array directly is now
342 2012-10-11 - 9a92aea - lavu 51.43.0 - aes.h, md5.h, sha.h, tree.h
343 Add functions for allocating the opaque contexts for the algorithms,
344 deprecate the context size variables.
346 2012-10-10 - b522000 - lavf 54.18.0 - avio.h
347 Add avio_closep to complement avio_close.
349 2012-10-08 - 78071a1 - lavu 51.42.0 - pixfmt.h
350 Rename PixelFormat to AVPixelFormat and all PIX_FMT_* to AV_PIX_FMT_*.
351 To provide backwards compatibility, PixelFormat is now #defined as
353 Note that this can break user code that includes pixfmt.h and uses the
354 'PixelFormat' identifier. Such code should either #undef PixelFormat
355 or stop using the PixelFormat name.
357 2012-10-05 - e7ba5b1 - lavr 1.0.0 - avresample.h
358 Data planes parameters to avresample_convert() and
359 avresample_read() are now uint8_t** instead of void**.
360 Libavresample is now stable.
362 2012-09-24 - a42aada - lavc 54.28.0 - avcodec.h
363 Add avcodec_free_frame(). This function must now
364 be used for freeing an AVFrame.
366 2012-09-12 - 8919fee - lavu 51.41.0 - audioconvert.h
367 Added AV_CH_LOW_FREQUENCY_2 channel mask value.
369 2012-09-04 - 686a329 - lavu 51.40.0 - opt.h
370 Reordered the fields in default_val in AVOption, changed which
371 default_val field is used for which AVOptionType.
373 2012-08-30 - a231832 - lavc 54.26.1 - avcodec.h
374 Add codec descriptor properties AV_CODEC_PROP_LOSSY and
375 AV_CODEC_PROP_LOSSLESS.
377 2012-08-18 - lavc 54.26 - avcodec.h
378 Add codec descriptors for accessing codec properties without having
379 to refer to a specific decoder or encoder.
381 c223d79 - Add an AVCodecDescriptor struct and functions
382 avcodec_descriptor_get() and avcodec_descriptor_next().
383 51efed1 - Add AVCodecDescriptor.props and AV_CODEC_PROP_INTRA_ONLY.
384 91e59fe - Add avcodec_descriptor_get_by_name().
387 2012-08-08 - 1d9c2dc - lavu 51.39 - avutil.h
388 Don't implicitly include libavutil/common.h in avutil.h
390 2012-08-08 - 987170c - lavu 51.38 - dict.h
393 2012-08-07 - 104e10f - lavc 54.25 - avcodec.h
394 Rename CodecID to AVCodecID and all CODEC_ID_* to AV_CODEC_ID_*.
395 To provide backwards compatibility, CodecID is now #defined as AVCodecID.
396 Note that this can break user code that includes avcodec.h and uses the
397 'CodecID' identifier. Such code should either #undef CodecID or stop using the
400 2012-08-03 - 239fdf1 - lavu 51.37.1 - cpu.h
401 lsws 2.1.1 - swscale.h
402 Rename AV_CPU_FLAG_MMX2 ---> AV_CPU_FLAG_MMXEXT.
403 Rename SWS_CPU_CAPS_MMX2 ---> SWS_CPU_CAPS_MMXEXT.
405 2012-07-29 - 681ed00 - lavf 54.13.0 - avformat.h
406 Add AVFMT_FLAG_NOBUFFER for low latency use cases.
408 2012-07-20 - b70d89a - lavfi 3.0.0 - avfilter.h
409 Add avfilter_unref_bufferp().
411 2012-07-10 - 5fade8a - lavu 51.37.0
412 Add av_malloc_array() and av_mallocz_array()
414 2012-06-22 - d3d3a32 - lavu 51.34.0
417 2012-06-20 - ae0a301 - lavu 51.33.0
418 Move av_gettime() to libavutil, add libavutil/time.h
420 2012-06-09 - 3971be0 - lavr 0.0.3
421 Add a parameter to avresample_build_matrix() for Dolby/DPLII downmixing.
423 2012-06-12 - 9baeff9 - lavfi 2.23.0 - avfilter.h
424 Add AVFilterContext.nb_inputs/outputs. Deprecate
425 AVFilterContext.input/output_count.
427 2012-06-12 - 84b9fbe - lavfi 2.22.0 - avfilter.h
428 Add avfilter_pad_get_type() and avfilter_pad_get_name(). Those
429 should now be used instead of accessing AVFilterPad members
432 2012-06-12 - b0f0dfc - lavu 51.32.0 - audioconvert.h
433 Add av_get_channel_layout_channel_index(), av_get_channel_name()
434 and av_channel_layout_extract_channel().
436 2012-05-25 - 154486f - lavu 51.31.0 - opt.h
439 2012-05-26 - e9cef89 - lavf 54.3.0
440 Add AVFMT_TS_NONSTRICT format flag to indicate that a muxer supports
441 non-increasing monotone timestamps.
443 2012-05-15 - lavfi 2.17.0
444 Add support for audio filters
445 ac71230/a2cd9be - add video/audio buffer sink in a new installed
447 720c6b7 - add av_buffersrc_write_frame(), deprecate
448 av_vsrc_buffer_add_frame()
449 ab16504 - add avfilter_copy_buf_props()
450 9453c9e - add extended_data to AVFilterBuffer
451 1b8c927 - add avfilter_get_audio_buffer_ref_from_arrays()
453 2012-05-09 - lavu 51.30.0 - samplefmt.h
454 142e740 - add av_samples_copy()
455 6d7f617 - add av_samples_set_silence()
457 2012-05-09 - a5117a2 - lavc 54.13.1
458 For audio formats with fixed frame size, the last frame
459 no longer needs to be padded with silence, libavcodec
460 will handle this internally (effectively all encoders
461 behave as if they had CODEC_CAP_SMALL_LAST_FRAME set).
463 2012-05-07 - 828bd08 - lavc 54.13.0 - avcodec.h
464 Add sample_rate and channel_layout fields to AVFrame.
466 2012-05-01 - 4010d72 - lavr 0.0.1
467 Change AV_MIX_COEFF_TYPE_Q6 to AV_MIX_COEFF_TYPE_Q8.
469 2012-04-25 - 3527a73 - lavu 51.29.0 - cpu.h
470 Add av_parse_cpu_flags()
472 2012-04-24 - c8af852 - lavr 0.0.0
473 Add libavresample audio conversion library
475 2012-04-20 - 0c0d1bc - lavu 51.28.0 - audio_fifo.h
476 Add audio FIFO functions:
478 av_audio_fifo_alloc()
479 av_audio_fifo_realloc()
480 av_audio_fifo_write()
482 av_audio_fifo_drain()
483 av_audio_fifo_reset()
485 av_audio_fifo_space()
487 2012-04-14 - lavfi 2.16.0 - avfiltergraph.h
488 d7bcc71 Add avfilter_graph_parse2().
489 91d3cbe Add avfilter_inout_alloc() and avfilter_inout_free().
491 2012-04-08 - 4d693b0 - lavu 51.27.0 - samplefmt.h
492 Add av_get_packed_sample_fmt() and av_get_planar_sample_fmt()
494 2012-04-05 - 5cc51a5 - lavu 51.26.0 - audioconvert.h
495 Add av_get_default_channel_layout()
497 2012-03-20 - 3c90cc2 - lavfo 54.2.0
498 Deprecate av_read_packet(), use av_read_frame() with
499 AVFMT_FLAG_NOPARSE | AVFMT_FLAG_NOFILLIN in AVFormatContext.flags
501 2012-03-06 - 4d851f8 - lavu 51.25.0 - cpu.h
502 Add av_set_cpu_flags_mask().
504 2012-03-05 - lavc 54.8.0
505 6699d07 Add av_get_exact_bits_per_sample()
506 9524cf7 Add av_get_audio_frame_duration()
508 2012-03-04 - 44fe77b - lavc 54.7.0 - avcodec.h
509 Add av_codec_is_encoder/decoder().
511 2012-03-01 - 442c132 - lavc 54.3.0 - avcodec.h
512 Add av_packet_shrink_side_data.
514 2012-02-29 - dd2a4bc - lavf 54.2.0 - avformat.h
515 Add AVStream.attached_pic and AV_DISPOSITION_ATTACHED_PIC,
516 used for dealing with attached pictures/cover art.
518 2012-02-25 - c9bca80 - lavu 51.24.0 - error.h
520 NOTE: this was backported to 0.8
522 2012-02-20 - e9cda85 - lavc 54.2.0
523 Add duration field to AVCodecParserContext
525 2012-02-20 - 0b42a93 - lavu 51.23.1 - mathematics.h
526 Add av_rescale_q_rnd()
528 2012-02-08 - 38d5533 - lavu 51.22.1 - pixdesc.h
529 Add PIX_FMT_PSEUDOPAL flag.
531 2012-02-08 - 52f82a1 - lavc 54.01.0
532 Add avcodec_encode_video2() and deprecate avcodec_encode_video().
534 2012-02-01 - 316fc74 - lavc 54.01.0
535 Add av_fast_padded_malloc() as alternative for av_realloc() when aligned
536 memory is required. The buffer will always have FF_INPUT_BUFFER_PADDING_SIZE
537 zero-padded bytes at the end.
539 2012-01-31 - dd6d3b0 - lavf 54.01.0
540 Add avformat_get_riff_video_tags() and avformat_get_riff_audio_tags().
541 NOTE: this was backported to 0.8
543 2012-01-31 - af08d9a - lavc 54.01.0
544 Add avcodec_is_open() function.
545 NOTE: this was backported to 0.8
547 2012-01-30 - 8b93312 - lavu 51.22.0 - intfloat.h
548 Add a new installed header libavutil/intfloat.h with int/float punning
550 NOTE: this was backported to 0.8
552 2012-01-25 - lavf 53.22.0
553 f1caf01 Allow doing av_write_frame(ctx, NULL) for flushing possible
554 buffered data within a muxer. Added AVFMT_ALLOW_FLUSH for
555 muxers supporting it (av_write_frame makes sure it is called
556 only for muxers with this flag).
558 ------------------------------8<-------------------------------------
559 0.8 branch was cut here
560 ----------------------------->8--------------------------------------
562 2012-01-15 - lavc 53.34.0
563 New audio encoding API:
564 b2c75b6 Add CODEC_CAP_VARIABLE_FRAME_SIZE capability for use by audio
566 5ee5fa0 Add avcodec_fill_audio_frame() as a convenience function.
567 b2c75b6 Add avcodec_encode_audio2() and deprecate avcodec_encode_audio().
568 Add AVCodec.encode2().
570 2012-01-12 - 3167dc9 - lavfi 2.15.0
571 Add a new installed header -- libavfilter/version.h -- with version macros.
573 2011-01-03 - b73ec05 - lavu 51.21.0
576 2011-12-25 - lavfi 2.14.0
577 e1d9dbf Add a new installed header - buffersrc.h
578 It contains a new function av_buffersrc_buffer() that allows passing
579 frames to the 'buffer' filter, but unlike av_vsrc_buffer_add_frame()
580 it allows for direct rendering.
581 1c9e340 Add avfilter_copy_frame_props() for copying properties from
582 AVFrame to AVFilterBufferRef.
584 2011-12-25 - lavc 53.31.0
585 Add the following new fields to AVFrame:
586 b58dbb5 sample_aspect_ratio
587 3a2ddf7 width, height
590 2011-12-18 - 8400b12 - lavc 53.28.1
591 Deprecate AVFrame.age. The field is unused.
593 2011-12-12 - 5266045 - lavf 53.17.0
594 Add avformat_close_input().
595 Deprecate av_close_input_file() and av_close_input_stream().
597 2011-12-02 - 0eea212 - lavc 53.25.0
598 Add nb_samples and extended_data fields to AVFrame.
599 Deprecate AVCODEC_MAX_AUDIO_FRAME_SIZE.
600 Deprecate avcodec_decode_audio3() in favor of avcodec_decode_audio4().
601 avcodec_decode_audio4() writes output samples to an AVFrame, which allows
602 audio decoders to use get_buffer().
604 2011-12-04 - 560f773 - lavc 53.24.0
605 Change AVFrame.data[4]/base[4]/linesize[4]/error[4] to [8] at next major bump.
606 Change AVPicture.data[4]/linesize[4] to [8] at next major bump.
607 Change AVCodecContext.error[4] to [8] at next major bump.
608 Add AV_NUM_DATA_POINTERS to simplify the bump transition.
610 2011-11-23 - bbb46f3 - lavu 51.18.0
611 Add av_samples_get_buffer_size(), av_samples_fill_arrays(), and
612 av_samples_alloc(), to samplefmt.h.
614 2011-11-23 - 8889cc4 - lavu 51.17.0
615 Add planar sample formats and av_sample_fmt_is_planar() to samplefmt.h.
617 2011-11-19 - f3a29b7 - lavc 53.21.0
618 Move some AVCodecContext fields to a new private struct, AVCodecInternal,
619 which is accessed from a new field, AVCodecContext.internal.
621 AVCodecContext.internal_buffer --> AVCodecInternal.buffer
622 AVCodecContext.internal_buffer_count --> AVCodecInternal.buffer_count
623 AVCodecContext.is_copy --> AVCodecInternal.is_copy
625 2011-11-16 - 6270671 - lavu 51.16.0
628 2011-11-13 - lavf 53.15.0
629 New interrupt callback API, allowing per-AVFormatContext/AVIOContext
631 6aa0b98 Add AVIOInterruptCB struct and the interrupt_callback field to
633 1dee0ac Add avio_open2() with additional parameters. Those are
634 an interrupt callback and an options AVDictionary.
635 This will allow passing AVOptions to protocols after lavf
638 2011-11-06 - ba04ecf - lavu 51.14.0
639 Add av_strcasecmp() and av_strncasecmp() to avstring.h.
641 2011-11-06 - 07b172f - lavu 51.13.0
642 Add av_toupper()/av_tolower()
644 2011-11-05 - b6d08f4 - lavf 53.13.0
645 Add avformat_network_init()/avformat_network_deinit()
647 2011-10-27 - 512557b - lavc 53.15.0
648 Remove avcodec_parse_frame.
649 Deprecate AVCodecContext.parse_only and CODEC_CAP_PARSE_ONLY.
651 2011-10-19 - 569129a - lavf 53.10.0
652 Add avformat_new_stream(). Deprecate av_new_stream().
654 2011-10-13 - b631fba - lavf 53.9.0
655 Add AVFMT_NO_BYTE_SEEK AVInputFormat flag.
657 2011-10-12 - lavu 51.12.0
658 AVOptions API rewrite.
660 - 145f741 FF_OPT_TYPE* renamed to AV_OPT_TYPE_*
661 - new setting/getting functions with slightly different semantics:
662 dac66da av_set_string3 -> av_opt_set
663 av_set_double -> av_opt_set_double
664 av_set_q -> av_opt_set_q
665 av_set_int -> av_opt_set_int
667 41d9d51 av_get_string -> av_opt_get
668 av_get_double -> av_opt_get_double
669 av_get_q -> av_opt_get_q
670 av_get_int -> av_opt_get_int
672 - 8c5dcaa trivial rename av_next_option -> av_opt_next
673 - 641c7af new functions - av_opt_child_next, av_opt_child_class_next
676 2011-09-03 - fb4ca26 - lavc 53.10.0
679 Add {avcodec,avformat,sws}_get_class().
681 2011-09-03 - c11fb82 - lavu 51.10.0
682 Add AV_OPT_SEARCH_FAKE_OBJ flag for av_opt_find() function.
684 2011-08-26 - lavu 51.9.0
685 - f2011ed Add av_fifo_peek2(), deprecate av_fifo_peek().
686 - add41de..abc78a5 Do not include intfloat_readwrite.h,
687 mathematics.h, rational.h, pixfmt.h, or log.h from avutil.h.
689 2011-08-16 - 48f9e45 - lavf 53.4.0
690 Add avformat_query_codec().
692 2011-08-16 - bca06e7 - lavc 53.8.0
693 Add avcodec_get_type().
695 2011-08-06 - 2f63440 - lavf 53.4.0
696 Add error_recognition to AVFormatContext.
698 2011-08-02 - 9d39cbf - lavc 53.7.1
699 Add AV_PKT_FLAG_CORRUPT AVPacket flag.
701 2011-07-10 - a67c061 - lavf 53.3.0
702 Add avformat_find_stream_info(), deprecate av_find_stream_info().
703 NOTE: this was backported to 0.7
705 2011-07-10 - 0b950fe - lavc 53.6.0
706 Add avcodec_open2(), deprecate avcodec_open().
707 NOTE: this was backported to 0.7
709 Add avcodec_alloc_context3. Deprecate avcodec_alloc_context() and
710 avcodec_alloc_context2().
712 2011-06-23 - 67e9ae1 - lavu 51.8.0 - attributes.h
713 Add av_printf_format().
715 ------------------------------8<-------------------------------------
716 0.7 branch was cut here
717 ----------------------------->8--------------------------------------
719 2011-06-16 - 05e84c9, 25de595 - lavf 53.2.0 - avformat.h
720 Add avformat_open_input and avformat_write_header().
721 Deprecate av_open_input_stream, av_open_input_file,
722 AVFormatParameters and av_write_header.
724 2011-06-16 - 7e83e1c, dc59ec5 - lavu 51.7.0 - opt.h
725 Add av_opt_set_dict() and av_opt_find().
726 Deprecate av_find_opt().
727 Add AV_DICT_APPEND flag.
729 2011-06-10 - cb7c11c - lavu 51.6.0 - opt.h
730 Add av_opt_flag_is_set().
732 2011-06-08 - d9f80ea - lavu 51.5.0 - AVMetadata
733 Move AVMetadata from lavf to lavu and rename it to
734 AVDictionary -- new installed header dict.h.
735 All av_metadata_* functions renamed to av_dict_*.
737 2011-06-07 - a6703fa - lavu 51.4.0 - av_get_bytes_per_sample()
738 Add av_get_bytes_per_sample() in libavutil/samplefmt.h.
739 Deprecate av_get_bits_per_sample_fmt().
741 2011-06-05 - b39b062 - lavu 51.3.0 - opt.h
742 Add av_opt_free convenience function.
744 2011-05-28 - 0420bd7 - lavu 51.2.0 - pixdesc.h
745 Add av_get_pix_fmt_name() in libavutil/pixdesc.h, and deprecate
746 avcodec_get_pix_fmt_name() in libavcodec/avcodec.h in its favor.
748 2011-05-25 - 30315a8 - lavf 53.1.0 - avformat.h
749 Add fps_probe_size to AVFormatContext.
751 2011-05-18 - 64150ff - lavc 53.4.0 - AVCodecContext.request_sample_fmt
752 Add request_sample_fmt field to AVCodecContext.
754 2011-05-10 - 188dea1 - lavc 53.3.0 - avcodec.h
755 Deprecate AVLPCType and the following fields in
756 AVCodecContext: lpc_coeff_precision, prediction_order_method,
757 min_partition_order, max_partition_order, lpc_type, lpc_passes.
758 Corresponding FLAC encoder options should be used instead.
760 2011-04-26 - bebe72f - lavu 51.1.0 - avutil.h
761 Add AVPictureType enum and av_get_picture_type_char(), deprecate
762 FF_*_TYPE defines and av_get_pict_type_char() defined in
763 libavcodec/avcodec.h.
765 2011-04-26 - 10d3940 - lavfi 2.3.0 - avfilter.h
766 Add pict_type and key_frame fields to AVFilterBufferRefVideo.
768 2011-04-26 - 7a11c82 - lavfi 2.2.0 - vsrc_buffer
769 Add sample_aspect_ratio fields to vsrc_buffer arguments
771 2011-04-21 - 94f7451 - lavc 53.1.0 - avcodec.h
772 Add CODEC_CAP_SLICE_THREADS for codecs supporting sliced threading.
774 2011-04-15 - lavc 52.120.0 - avcodec.h
775 AVPacket structure got additional members for passing side information:
776 4de339e introduce side information for AVPacket
777 2d8591c make containers pass palette change in AVPacket
779 2011-04-12 - lavf 52.107.0 - avio.h
780 Avio cleanup, part II - deprecate the entire URLContext API:
781 175389c add avio_check as a replacement for url_exist
782 ff1ec0c add avio_pause and avio_seek_time as replacements
783 for _av_url_read_fseek/fpause
784 cdc6a87 deprecate av_protocol_next(), avio_enum_protocols
785 should be used instead.
786 80c6e23 rename url_set_interrupt_cb->avio_set_interrupt_cb.
787 f87b1b3 rename open flags: URL_* -> AVIO_*
788 f8270bb add avio_enum_protocols.
789 5593f03 deprecate URLProtocol.
790 c486dad deprecate URLContext.
791 026e175 deprecate the typedef for URLInterruptCB
792 8e76a19 deprecate av_register_protocol2.
793 b840484 deprecate URL_PROTOCOL_FLAG_NESTED_SCHEME
794 1305d93 deprecate av_url_read_seek
795 fa104e1 deprecate av_url_read_pause
796 727c7aa deprecate url_get_filename().
797 5958df3 deprecate url_max_packet_size().
798 1869ea0 deprecate url_get_file_handle().
799 32a97d4 deprecate url_filesize().
800 e52a914 deprecate url_close().
801 58a48c6 deprecate url_seek().
802 925e908 deprecate url_write().
803 dce3756 deprecate url_read_complete().
804 bc371ac deprecate url_read().
805 0589da0 deprecate url_open().
806 62eaaea deprecate url_connect.
807 5652bb9 deprecate url_alloc.
808 333e894 deprecate url_open_protocol
809 e230705 deprecate url_poll and URLPollEntry
811 2011-04-10 - lavu 50.40.0 - pixfmt.h
812 Add PIX_FMT_BGR48LE and PIX_FMT_BGR48BE pixel formats
814 2011-04-08 - lavf 52.106.0 - avformat.h
815 Minor avformat.h cleanup:
816 a9bf9d8 deprecate av_guess_image2_codec
817 c3675df rename avf_sdp_create->av_sdp_create
819 2011-04-03 - lavf 52.105.0 - avio.h
820 Large-scale renaming/deprecating of AVIOContext-related functions:
821 724f6a0 deprecate url_fdopen
822 403ee83 deprecate url_open_dyn_packet_buf
823 6dc7d80 rename url_close_dyn_buf -> avio_close_dyn_buf
824 b92c545 rename url_open_dyn_buf -> avio_open_dyn_buf
825 8978fed introduce an AVIOContext.seekable field as a replacement for
826 AVIOContext.is_streamed and url_is_streamed()
827 b64030f deprecate get_checksum()
828 4c4427a deprecate init_checksum()
829 4ec153b deprecate udp_set_remote_url/get_local_port
830 933e90a deprecate av_url_read_fseek/fpause
831 8d9769a deprecate url_fileno
832 b7f2fdd rename put_flush_packet -> avio_flush
833 35f1023 deprecate url_close_buf
834 83fddae deprecate url_open_buf
835 d9d86e0 rename url_fprintf -> avio_printf
836 59f65d9 deprecate url_setbufsize
837 3e68b3b deprecate url_ferror
838 66e5b1d deprecate url_feof
839 e8bb2e2 deprecate url_fget_max_packet_size
840 76aa876 rename url_fsize -> avio_size
841 e519753 deprecate url_fgetc
842 655e45e deprecate url_fgets
843 a2704c9 rename url_ftell -> avio_tell
844 e16ead0 deprecate get_strz() in favor of avio_get_str
845 0300db8,2af07d3 rename url_fskip -> avio_skip
846 6b4aa5d rename url_fseek -> avio_seek
847 61840b4 deprecate put_tag
848 22a3212 rename url_fopen/fclose -> avio_open/close.
849 0ac8e2b deprecate put_nbyte
850 77eb550 rename put_byte -> avio_w8
851 put_[b/l]e<type> -> avio_w[b/l]<type>
852 put_buffer -> avio_write
853 b7effd4 rename get_byte -> avio_r8,
854 get_[b/l]e<type> -> avio_r[b/l]<type>
855 get_buffer -> avio_read
856 b3db9ce deprecate get_partial_buffer
857 8d9ac96 rename av_alloc_put_byte -> avio_alloc_context
859 2011-03-25 - 34b47d7 - lavc 52.115.0 - AVCodecContext.audio_service_type
860 Add audio_service_type field to AVCodecContext.
862 2011-03-02 - 863c471 - lavf 52.103.0 - av_pkt_dump2, av_pkt_dump_log2
863 Add new functions av_pkt_dump2, av_pkt_dump_log2 that uses the
864 source stream timebase for outputting timestamps. Deprecate
865 av_pkt_dump and av_pkt_dump_log.
867 2011-02-20 - e731b8d - lavf 52.102.0 - avio.h
868 * e731b8d - rename init_put_byte() to ffio_init_context(), deprecating the
869 original, and move it to a private header so it is no longer
870 part of our public API. Instead, use av_alloc_put_byte().
871 * ae628ec - rename ByteIOContext to AVIOContext.
873 2011-02-16 - 09d171b - lavf 52.101.0 - avformat.h
874 lavu 52.39.0 - parseutils.h
875 * 610219a - Add av_ prefix to dump_format().
876 * f6c7375 - Replace parse_date() in lavf with av_parse_time() in lavu.
877 * ab0287f - Move find_info_tag from lavf to lavu and add av_prefix to it.
879 2011-02-15 - lavu 52.38.0 - merge libavcore
880 libavcore is merged back completely into libavutil
882 2011-02-10 - 55bad0c - lavc 52.113.0 - vbv_delay
883 Add vbv_delay field to AVCodecContext
885 2011-02-14 - 24a83bd - lavf 52.100.0 - AV_DISPOSITION_CLEAN_EFFECTS
886 Add AV_DISPOSITION_CLEAN_EFFECTS disposition flag.
888 2011-02-14 - 910b5b8 - lavfi 1.76.0 - AVFilterLink sample_aspect_ratio
889 Add sample_aspect_ratio field to AVFilterLink.
891 2011-02-10 - 12c14cd - lavf 52.99.0 - AVStream.disposition
892 Add AV_DISPOSITION_HEARING_IMPAIRED and AV_DISPOSITION_VISUAL_IMPAIRED.
894 2011-02-09 - 5592734 - lavc 52.112.0 - avcodec_thread_init()
895 Deprecate avcodec_thread_init()/avcodec_thread_free() use; instead
896 set thread_count before calling avcodec_open.
898 2011-02-09 - 778b08a - lavc 52.111.0 - threading API
899 Add CODEC_CAP_FRAME_THREADS with new restrictions on get_buffer()/
900 release_buffer()/draw_horiz_band() callbacks for appropriate codecs.
901 Add thread_type and active_thread_type fields to AVCodecContext.
903 2011-02-08 - 3940caa - lavf 52.98.0 - av_probe_input_buffer
904 Add av_probe_input_buffer() to avformat.h for probing format from a
907 2011-02-06 - fe174fc - lavf 52.97.0 - avio.h
908 Add flag for non-blocking protocols: URL_FLAG_NONBLOCK
910 2011-02-04 - f124b08 - lavf 52.96.0 - avformat_free_context()
911 Add avformat_free_context() in avformat.h.
913 2011-02-03 - f5b82f4 - lavc 52.109.0 - add CODEC_ID_PRORES
914 Add CODEC_ID_PRORES to avcodec.h.
916 2011-02-03 - fe9a3fb - lavc 52.109.0 - H.264 profile defines
917 Add defines for H.264 * Constrained Baseline and Intra profiles
919 2011-02-02 - lavf 52.95.0
920 * 50196a9 - add a new installed header version.h.
921 * 4efd5cf, dccbd97, 93b78d1 - add several variants of public
922 avio_{put,get}_str* functions. Deprecate corresponding semi-public
925 2011-02-02 - dfd2a00 - lavu 50.37.0 - log.h
928 2011-01-15 - a242ac3 - lavfi 1.74.0 - AVFilterBufferRefAudioProps
929 Rename AVFilterBufferRefAudioProps.samples_nb to nb_samples.
931 2011-01-14 - 7f88a5b - lavf 52.93.0 - av_metadata_copy()
932 Add av_metadata_copy() in avformat.h.
934 2011-01-07 - 81c623f - lavc 52.107.0 - deprecate reordered_opaque
935 Deprecate reordered_opaque in favor of pkt_pts/dts.
937 2011-01-07 - 1919fea - lavc 52.106.0 - pkt_dts
938 Add pkt_dts to AVFrame, this will in the future allow multithreading decoders
941 2011-01-07 - 393cbb9 - lavc 52.105.0 - pkt_pts
942 Add pkt_pts to AVFrame.
944 2011-01-07 - 060ec0a - lavc 52.104.0 - av_get_profile_name()
945 Add av_get_profile_name to libavcodec/avcodec.h.
947 2010-12-27 - 0ccabee - lavfi 1.71.0 - AV_PERM_NEG_LINESIZES
948 Add AV_PERM_NEG_LINESIZES in avfilter.h.
950 2010-12-27 - 9128ae0 - lavf 52.91.0 - av_find_best_stream()
951 Add av_find_best_stream to libavformat/avformat.h.
953 2010-12-27 - 107a7e3 - lavf 52.90.0
954 Add AVFMT_NOSTREAMS flag for formats with no streams,
955 like e.g. text metadata.
957 2010-12-22 - 0328b9e - lavu 50.36.0 - file.h
958 Add functions av_file_map() and av_file_unmap() in file.h.
960 2010-12-19 - 0bc55f5 - lavu 50.35.0 - error.h
961 Add "not found" error codes:
962 AVERROR_DEMUXER_NOT_FOUND
963 AVERROR_MUXER_NOT_FOUND
964 AVERROR_DECODER_NOT_FOUND
965 AVERROR_ENCODER_NOT_FOUND
966 AVERROR_PROTOCOL_NOT_FOUND
967 AVERROR_FILTER_NOT_FOUND
968 AVERROR_BSF_NOT_FOUND
969 AVERROR_STREAM_NOT_FOUND
971 2010-12-09 - c61cdd0 - lavcore 0.16.0 - avcore.h
972 Move AV_NOPTS_VALUE, AV_TIME_BASE, AV_TIME_BASE_Q symbols from
973 avcodec.h to avcore.h.
975 2010-12-04 - 16cfc96 - lavc 52.98.0 - CODEC_CAP_NEG_LINESIZES
976 Add CODEC_CAP_NEG_LINESIZES codec capability flag in avcodec.h.
978 2010-12-04 - bb4afa1 - lavu 50.34.0 - av_get_pix_fmt_string()
979 Deprecate avcodec_pix_fmt_string() in favor of
980 pixdesc.h/av_get_pix_fmt_string().
982 2010-12-04 - 4da12e3 - lavcore 0.15.0 - av_image_alloc()
983 Add av_image_alloc() to libavcore/imgutils.h.
985 2010-12-02 - 037be76 - lavfi 1.67.0 - avfilter_graph_create_filter()
986 Add function avfilter_graph_create_filter() in avfiltergraph.h.
988 2010-11-25 - 4723bc2 - lavfi 1.65.0 - avfilter_get_video_buffer_ref_from_arrays()
989 Add function avfilter_get_video_buffer_ref_from_arrays() in
992 2010-11-21 - 176a615 - lavcore 0.14.0 - audioconvert.h
993 Add a public audio channel API in audioconvert.h, and deprecate the
994 corresponding functions in libavcodec:
995 avcodec_get_channel_name()
996 avcodec_get_channel_layout()
997 avcodec_get_channel_layout_string()
998 avcodec_channel_layout_num_channels()
999 and the CH_* macros defined in libavcodec/avcodec.h.
1001 2010-11-21 - 6bfc268 - lavf 52.85.0 - avformat.h
1002 Add av_append_packet().
1004 2010-11-21 - a08d918 - lavc 52.97.0 - avcodec.h
1005 Add av_grow_packet().
1007 2010-11-17 - 0985e1a - lavcore 0.13.0 - parseutils.h
1008 Add av_parse_color() declared in libavcore/parseutils.h.
1010 2010-11-13 - cb2c971 - lavc 52.95.0 - AVCodecContext
1011 Add AVCodecContext.subtitle_header and AVCodecContext.subtitle_header_size
1014 2010-11-13 - 5aaea02 - lavfi 1.62.0 - avfiltergraph.h
1015 Make avfiltergraph.h public.
1017 2010-11-13 - 4fcbb2a - lavfi 1.61.0 - avfiltergraph.h
1018 Remove declarations from avfiltergraph.h for the functions:
1019 avfilter_graph_check_validity()
1020 avfilter_graph_config_links()
1021 avfilter_graph_config_formats()
1022 which are now internal.
1023 Use avfilter_graph_config() instead.
1025 2010-11-08 - d2af720 - lavu 50.33.0 - eval.h
1026 Deprecate functions:
1027 av_parse_and_eval_expr(),
1031 in favor of the functions:
1032 av_expr_parse_and_eval(),
1037 2010-11-08 - 24de0ed - lavfi 1.59.0 - avfilter_free()
1038 Rename avfilter_destroy() to avfilter_free().
1039 This change breaks libavfilter API/ABI.
1041 2010-11-07 - 1e80a0e - lavfi 1.58.0 - avfiltergraph.h
1042 Remove graphparser.h header, move AVFilterInOut and
1043 avfilter_graph_parse() declarations to libavfilter/avfiltergraph.h.
1045 2010-11-07 - 7313132 - lavfi 1.57.0 - AVFilterInOut
1046 Rename field AVFilterInOut.filter to AVFilterInOut.filter_ctx.
1047 This change breaks libavfilter API.
1049 2010-11-04 - 97dd1e4 - lavfi 1.56.0 - avfilter_graph_free()
1050 Rename avfilter_graph_destroy() to avfilter_graph_free().
1051 This change breaks libavfilter API/ABI.
1053 2010-11-04 - e15aeea - lavfi 1.55.0 - avfilter_graph_alloc()
1054 Add avfilter_graph_alloc() to libavfilter/avfiltergraph.h.
1056 2010-11-02 - 6f84cd1 - lavcore 0.12.0 - av_get_bits_per_sample_fmt()
1057 Add av_get_bits_per_sample_fmt() to libavcore/samplefmt.h and
1058 deprecate av_get_bits_per_sample_format().
1060 2010-11-02 - d63e456 - lavcore 0.11.0 - samplefmt.h
1061 Add sample format functions in libavcore/samplefmt.h:
1062 av_get_sample_fmt_name(),
1063 av_get_sample_fmt(),
1064 av_get_sample_fmt_string(),
1065 and deprecate the corresponding libavcodec/audioconvert.h functions:
1066 avcodec_get_sample_fmt_name(),
1067 avcodec_get_sample_fmt(),
1068 avcodec_sample_fmt_string().
1070 2010-11-02 - 262d1c5 - lavcore 0.10.0 - samplefmt.h
1071 Define enum AVSampleFormat in libavcore/samplefmt.h, deprecate enum
1074 2010-10-16 - 2a24df9 - lavfi 1.52.0 - avfilter_graph_config()
1075 Add the function avfilter_graph_config() in avfiltergraph.h.
1077 2010-10-15 - 03700d3 - lavf 52.83.0 - metadata API
1078 Change demuxers to export metadata in generic format and
1079 muxers to accept generic format. Deprecate the public
1082 2010-10-10 - 867ae7a - lavfi 1.49.0 - AVFilterLink.time_base
1083 Add time_base field to AVFilterLink.
1085 2010-09-27 - c85eef4 - lavu 50.31.0 - av_set_options_string()
1086 Move av_set_options_string() from libavfilter/parseutils.h to
1089 2010-09-27 - acc0490 - lavfi 1.47.0 - AVFilterLink
1090 Make the AVFilterLink fields srcpad and dstpad store the pointers to
1091 the source and destination pads, rather than their indexes.
1093 2010-09-27 - 372e288 - lavu 50.30.0 - av_get_token()
1094 Move av_get_token() from libavfilter/parseutils.h to
1095 libavutil/avstring.h.
1097 2010-09-26 - 635d4ae - lsws 0.12.0 - swscale.h
1098 Add the functions sws_alloc_context() and sws_init_context().
1100 2010-09-26 - 6ed0404 - lavu 50.29.0 - opt.h
1101 Move libavcodec/opt.h to libavutil/opt.h.
1103 2010-09-24 - 1c1c80f - lavu 50.28.0 - av_log_set_flags()
1104 Default of av_log() changed due to many problems to the old no repeat
1105 detection. Read the docs of AV_LOG_SKIP_REPEATED in log.h before
1106 enabling it for your app!.
1108 2010-09-24 - f66eb58 - lavc 52.90.0 - av_opt_show2()
1109 Deprecate av_opt_show() in favor or av_opt_show2().
1111 2010-09-14 - bc6f0af - lavu 50.27.0 - av_popcount()
1112 Add av_popcount() to libavutil/common.h.
1114 2010-09-08 - c6c98d0 - lavu 50.26.0 - av_get_cpu_flags()
1115 Add av_get_cpu_flags().
1117 2010-09-07 - 34017fd - lavcore 0.9.0 - av_image_copy()
1118 Add av_image_copy().
1120 2010-09-07 - 9686abb - lavcore 0.8.0 - av_image_copy_plane()
1121 Add av_image_copy_plane().
1123 2010-09-07 - 9b7269e - lavcore 0.7.0 - imgutils.h
1124 Adopt hierarchical scheme for the imgutils.h function names,
1125 deprecate the old names.
1127 2010-09-04 - 7160bb7 - lavu 50.25.0 - AV_CPU_FLAG_*
1128 Deprecate the FF_MM_* flags defined in libavcodec/avcodec.h in favor
1129 of the AV_CPU_FLAG_* flags defined in libavutil/cpu.h.
1131 2010-08-26 - 5da19b5 - lavc 52.87.0 - avcodec_get_channel_layout()
1132 Add avcodec_get_channel_layout() in audioconvert.h.
1134 2010-08-20 - e344336 - lavcore 0.6.0 - av_fill_image_max_pixsteps()
1135 Rename av_fill_image_max_pixstep() to av_fill_image_max_pixsteps().
1137 2010-08-18 - a6ddf8b - lavcore 0.5.0 - av_fill_image_max_pixstep()
1138 Add av_fill_image_max_pixstep() in imgutils.h.
1140 2010-08-17 - 4f2d2e4 - lavu 50.24.0 - AV_NE()
1141 Add the AV_NE macro.
1143 2010-08-17 - ad2c950 - lavfi 1.36.0 - audio framework
1144 Implement AVFilterBufferRefAudioProps struct for audio properties,
1145 get_audio_buffer(), filter_samples() functions and related changes.
1147 2010-08-12 - 81c1eca - lavcore 0.4.0 - av_get_image_linesize()
1148 Add av_get_image_linesize() in imgutils.h.
1150 2010-08-11 - c1db7bf - lavfi 1.34.0 - AVFilterBufferRef
1151 Resize data and linesize arrays in AVFilterBufferRef to 8.
1153 This change breaks libavfilter API/ABI.
1155 2010-08-11 - 9f08d80 - lavc 52.85.0 - av_picture_data_copy()
1156 Add av_picture_data_copy in avcodec.h.
1158 2010-08-11 - 84c0386 - lavfi 1.33.0 - avfilter_open()
1159 Change avfilter_open() signature:
1160 AVFilterContext *avfilter_open(AVFilter *filter, const char *inst_name) ->
1161 int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);
1163 This change breaks libavfilter API/ABI.
1165 2010-08-11 - cc80caf - lavfi 1.32.0 - AVFilterBufferRef
1166 Add a type field to AVFilterBufferRef, and move video specific
1167 properties to AVFilterBufferRefVideoProps.
1169 This change breaks libavfilter API/ABI.
1171 2010-08-07 - 5d4890d - lavfi 1.31.0 - AVFilterLink
1172 Rename AVFilterLink fields:
1173 AVFilterLink.srcpic -> AVFilterLink.src_buf
1174 AVFilterLink.cur_pic -> AVFilterLink.cur_buf
1175 AVFilterLink.outpic -> AVFilterLink.out_buf
1177 2010-08-07 - 7fce481 - lavfi 1.30.0
1178 Rename functions and fields:
1179 avfilter_(un)ref_pic -> avfilter_(un)ref_buffer
1180 avfilter_copy_picref_props -> avfilter_copy_buffer_ref_props
1181 AVFilterBufferRef.pic -> AVFilterBufferRef.buffer
1183 2010-08-07 - ecc8dad - lavfi 1.29.0 - AVFilterBufferRef
1184 Rename AVFilterPicRef to AVFilterBufferRef.
1186 2010-08-07 - d54e094 - lavfi 1.28.0 - AVFilterBuffer
1187 Move format field from AVFilterBuffer to AVFilterPicRef.
1189 2010-08-06 - bf176f5 - lavcore 0.3.0 - av_check_image_size()
1190 Deprecate avcodec_check_dimensions() in favor of the function
1191 av_check_image_size() defined in libavcore/imgutils.h.
1193 2010-07-30 - 56b5e9d - lavfi 1.27.0 - AVFilterBuffer
1194 Increase size of the arrays AVFilterBuffer.data and
1195 AVFilterBuffer.linesize from 4 to 8.
1197 This change breaks libavfilter ABI.
1199 2010-07-29 - e7bd48a - lavcore 0.2.0 - imgutils.h
1200 Add functions av_fill_image_linesizes() and
1201 av_fill_image_pointers(), declared in libavcore/imgutils.h.
1203 2010-07-27 - 126b638 - lavcore 0.1.0 - parseutils.h
1204 Deprecate av_parse_video_frame_size() and av_parse_video_frame_rate()
1205 defined in libavcodec in favor of the newly added functions
1206 av_parse_video_size() and av_parse_video_rate() declared in
1207 libavcore/parseutils.h.
1209 2010-07-23 - 4485247 - lavu 50.23.0 - mathematics.h
1210 Add the M_PHI constant definition.
1212 2010-07-22 - bdab614 - lavfi 1.26.0 - media format generalization
1213 Add a type field to AVFilterLink.
1215 Change the field types:
1216 enum PixelFormat format -> int format in AVFilterBuffer
1217 enum PixelFormat *formats -> int *formats in AVFilterFormats
1218 enum PixelFormat *format -> int format in AVFilterLink
1220 Change the function signatures:
1221 AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts); ->
1222 AVFilterFormats *avfilter_make_format_list(const int *fmts);
1224 int avfilter_add_colorspace(AVFilterFormats **avff, enum PixelFormat pix_fmt); ->
1225 int avfilter_add_format (AVFilterFormats **avff, int fmt);
1227 AVFilterFormats *avfilter_all_colorspaces(void); ->
1228 AVFilterFormats *avfilter_all_formats (enum AVMediaType type);
1230 This change breaks libavfilter API/ABI.
1232 2010-07-21 - aac6ca6 - lavcore 0.0.0
1235 2010-07-17 - b5c582f - lavfi 1.25.0 - AVFilterBuffer
1236 Remove w and h fields from AVFilterBuffer.
1238 2010-07-17 - f0d77b2 - lavfi 1.24.0 - AVFilterBuffer
1239 Rename AVFilterPic to AVFilterBuffer.
1241 2010-07-17 - 57fe80f - lavf 52.74.0 - url_fskip()
1242 Make url_fskip() return an int error code instead of void.
1244 2010-07-11 - 23940f1 - lavc 52.83.0
1245 Add AVCodecContext.lpc_type and AVCodecContext.lpc_passes fields.
1247 Deprecate AVCodecContext.use_lpc.
1249 2010-07-11 - e1d7c88 - lavc 52.82.0 - avsubtitle_free()
1250 Add a function for free the contents of a AVSubtitle generated by
1251 avcodec_decode_subtitle.
1253 2010-07-11 - b91d08f - lavu 50.22.0 - bswap.h and intreadwrite.h
1254 Make the bswap.h and intreadwrite.h API public.
1256 2010-07-08 - ce1cd1c - lavu 50.21.0 - pixdesc.h
1257 Rename read/write_line() to av_read/write_image_line().
1259 2010-07-07 - 4d508e4 - lavfi 1.21.0 - avfilter_copy_picref_props()
1260 Add avfilter_copy_picref_props().
1262 2010-07-03 - 2d525ef - lavc 52.79.0
1263 Add FF_COMPLIANCE_UNOFFICIAL and change all instances of
1264 FF_COMPLIANCE_INOFFICIAL to use FF_COMPLIANCE_UNOFFICIAL.
1266 2010-07-02 - 89eec74 - lavu 50.20.0 - lfg.h
1267 Export av_lfg_init(), av_lfg_get(), av_mlfg_get(), and av_bmg_get() through
1270 2010-06-28 - a52e2c3 - lavfi 1.20.1 - av_parse_color()
1271 Extend av_parse_color() syntax, make it accept an alpha value specifier and
1272 set the alpha value to 255 by default.
1274 2010-06-22 - 735cf6b - lavf 52.71.0 - URLProtocol.priv_data_size, priv_data_class
1275 Add priv_data_size and priv_data_class to URLProtocol.
1277 2010-06-22 - ffbb289 - lavf 52.70.0 - url_alloc(), url_connect()
1278 Add url_alloc() and url_connect().
1280 2010-06-22 - 9b07a2d - lavf 52.69.0 - av_register_protocol2()
1281 Add av_register_protocol2(), deprecating av_register_protocol().
1283 2010-06-09 - 65db058 - lavu 50.19.0 - av_compare_mod()
1284 Add av_compare_mod() to libavutil/mathematics.h.
1286 2010-06-05 - 0b99215 - lavu 50.18.0 - eval API
1287 Make the eval API public.
1289 2010-06-04 - 31878fc - lavu 50.17.0 - AV_BASE64_SIZE
1290 Add AV_BASE64_SIZE() macro.
1292 2010-06-02 - 7e566bb - lavc 52.73.0 - av_get_codec_tag_string()
1293 Add av_get_codec_tag_string().
1295 2010-06-01 - 2b99142 - lsws 0.11.0 - convertPalette API
1296 Add sws_convertPalette8ToPacked32() and sws_convertPalette8ToPacked24().
1298 2010-05-26 - 93ebfee - lavc 52.72.0 - CODEC_CAP_EXPERIMENTAL
1299 Add CODEC_CAP_EXPERIMENTAL flag.
1300 NOTE: this was backported to 0.6
1302 2010-05-23 - 9977863 - lavu 50.16.0 - av_get_random_seed()
1303 Add av_get_random_seed().
1305 2010-05-18 - 796ac23 - lavf 52.63.0 - AVFMT_FLAG_RTP_HINT
1306 Add AVFMT_FLAG_RTP_HINT as possible value for AVFormatContext.flags.
1307 NOTE: this was backported to 0.6
1309 2010-05-09 - b6bc205 - lavfi 1.20.0 - AVFilterPicRef
1310 Add interlaced and top_field_first fields to AVFilterPicRef.
1312 ------------------------------8<-------------------------------------
1313 0.6 branch was cut here
1314 ----------------------------->8--------------------------------------
1316 2010-05-01 - 8e2ee18 - lavf 52.62.0 - probe function
1317 Add av_probe_input_format2 to API, it allows ignoring probe
1318 results below given score and returns the actual probe score.
1320 2010-04-01 - 3dd6180 - lavf 52.61.0 - metadata API
1321 Add a flag for av_metadata_set2() to disable overwriting of
1324 2010-04-01 - 0fb49b5 - lavc 52.66.0
1325 Add avcodec_get_edge_width().
1327 2010-03-31 - d103218 - lavc 52.65.0
1328 Add avcodec_copy_context().
1330 2010-03-31 - 1a70d12 - lavf 52.60.0 - av_match_ext()
1331 Make av_match_ext() public.
1333 2010-03-31 - 1149150 - lavu 50.14.0 - AVMediaType
1334 Move AVMediaType enum from libavcodec to libavutil.
1336 2010-03-31 - 72415b2 - lavc 52.64.0 - AVMediaType
1337 Define AVMediaType enum, and use it instead of enum CodecType, which
1338 is deprecated and will be dropped at the next major bump.
1340 2010-03-25 - 8795823 - lavu 50.13.0 - av_strerror()
1341 Implement av_strerror().
1343 2010-03-23 - e1484eb - lavc 52.60.0 - av_dct_init()
1344 Support DCT-I and DST-I.
1346 2010-03-15 - b8819c8 - lavf 52.56.0 - AVFormatContext.start_time_realtime
1347 Add AVFormatContext.start_time_realtime field.
1349 2010-03-13 - 5bb5c1d - lavfi 1.18.0 - AVFilterPicRef.pos
1350 Add AVFilterPicRef.pos field.
1352 2010-03-13 - 60c144f - lavu 50.12.0 - error.h
1353 Move error code definitions from libavcodec/avcodec.h to
1354 the new public header libavutil/error.h.
1356 2010-03-07 - c709483 - lavc 52.56.0 - avfft.h
1357 Add public FFT interface.
1359 2010-03-06 - ac6ef86 - lavu 50.11.0 - av_stristr()
1362 2010-03-03 - 4b83fc0 - lavu 50.10.0 - av_tree_enumerate()
1363 Add av_tree_enumerate().
1365 2010-02-07 - b687c1a - lavu 50.9.0 - av_compare_ts()
1366 Add av_compare_ts().
1368 2010-02-05 - 3f3dc76 - lsws 0.10.0 - sws_getCoefficients()
1369 Add sws_getCoefficients().
1371 2010-02-01 - ca76a11 - lavf 52.50.0 - metadata API
1372 Add a list of generic tag names, change 'author' -> 'artist',
1375 2010-01-30 - 80a07f6 - lavu 50.8.0 - av_get_pix_fmt()
1376 Add av_get_pix_fmt().
1378 2010-01-21 - 01cc47d - lsws 0.9.0 - sws_scale()
1379 Change constness attributes of sws_scale() parameters.
1381 2010-01-10 - 3fb8e77 - lavfi 1.15.0 - avfilter_graph_config_links()
1382 Add a log_ctx parameter to avfilter_graph_config_links().
1384 2010-01-07 - 8e9767f - lsws 0.8.0 - sws_isSupported{In,Out}put()
1385 Add sws_isSupportedInput() and sws_isSupportedOutput() functions.
1387 2010-01-06 - c1d662f - lavfi 1.14.0 - avfilter_add_colorspace()
1388 Change the avfilter_add_colorspace() signature, make it accept an
1389 (AVFilterFormats **) rather than an (AVFilterFormats *) as before.
1391 2010-01-03 - 4fd1f18 - lavfi 1.13.0 - avfilter_add_colorspace()
1392 Add avfilter_add_colorspace().
1394 2010-01-02 - 8eb631f - lavf 52.46.0 - av_match_ext()
1395 Add av_match_ext(), it should be used in place of match_ext().
1397 2010-01-01 - a1f547b - lavf 52.45.0 - av_guess_format()
1398 Add av_guess_format(), it should be used in place of guess_format().
1400 2009-12-13 - a181981 - lavf 52.43.0 - metadata API
1401 Add av_metadata_set2(), AV_METADATA_DONT_STRDUP_KEY and
1402 AV_METADATA_DONT_STRDUP_VAL.
1404 2009-12-13 - 277c733 - lavu 50.7.0 - avstring.h API
1407 2009-12-13 - 02b398e - lavc 52.42.0 - AVStream
1410 2009-12-12 - 3ba69a1 - lavu 50.6.0 - av_bmg_next()
1411 Introduce the av_bmg_next() function.
1413 2009-12-05 - a13a543 - lavfi 1.12.0 - avfilter_draw_slice()
1414 Add a slice_dir parameter to avfilter_draw_slice().
1416 2009-11-26 - 4cc3f6a - lavfi 1.11.0 - AVFilter
1417 Remove the next field from AVFilter, this is not anymore required.
1419 2009-11-25 - 1433c4a - lavfi 1.10.0 - avfilter_next()
1420 Introduce the avfilter_next() function.
1422 2009-11-25 - 86a60fa - lavfi 1.9.0 - avfilter_register()
1423 Change the signature of avfilter_register() to make it return an
1424 int. This is required since now the registration operation may fail.
1426 2009-11-25 - 74a0059 - lavu 50.5.0 - pixdesc.h API
1427 Make the pixdesc.h API public.
1429 2009-10-27 - 243110f - lavfi 1.5.0 - AVFilter.next
1430 Add a next field to AVFilter, this is used for simplifying the
1431 registration and management of the registered filters.
1433 2009-10-23 - cccd292 - lavfi 1.4.1 - AVFilter.description
1434 Add a description field to AVFilter.
1436 2009-10-19 - 6b5dc05 - lavfi 1.3.0 - avfilter_make_format_list()
1437 Change the interface of avfilter_make_format_list() from
1438 avfilter_make_format_list(int n, ...) to
1439 avfilter_make_format_list(enum PixelFormat *pix_fmts).
1441 2009-10-18 - 0eb4ff9 - lavfi 1.0.0 - avfilter_get_video_buffer()
1442 Make avfilter_get_video_buffer() recursive and add the w and h
1445 2009-10-07 - 46c40e4 - lavfi 0.5.1 - AVFilterPic
1446 Add w and h fields to AVFilterPic.
1448 2009-06-22 - 92400be - lavf 52.34.1 - AVFormatContext.packet_size
1449 This is now an unsigned int instead of a signed int.
1451 2009-06-19 - a4276ba - lavc 52.32.0 - AVSubtitle.pts
1452 Add a pts field to AVSubtitle which gives the subtitle packet pts
1453 in AV_TIME_BASE. Some subtitle de-/encoders (e.g. XSUB) will
1454 not work right without this.
1456 2009-06-03 - 8f3f2e0 - lavc 52.30.2 - AV_PKT_FLAG_KEY
1457 PKT_FLAG_KEY has been deprecated and will be dropped at the next
1458 major version. Use AV_PKT_FLAG_KEY instead.
1460 2009-06-01 - f988ce6 - lavc 52.30.0 - av_lockmgr_register()
1461 av_lockmgr_register() can be used to register a callback function
1462 that lavc (and in the future, libraries that depend on lavc) can use
1463 to implement mutexes. The application should provide a callback function
1464 that implements the AV_LOCK_* operations described in avcodec.h.
1465 When the lock manager is registered, FFmpeg is guaranteed to behave
1466 correctly in a multi-threaded application.
1468 2009-04-30 - ce1d9c8 - lavc 52.28.0 - av_free_packet()
1469 av_free_packet() is no longer an inline function. It is now exported.
1471 2009-04-11 - 80d403f - lavc 52.25.0 - deprecate av_destruct_packet_nofree()
1472 Please use NULL instead. This has been supported since r16506
1473 (lavf > 52.23.1, lavc > 52.10.0).
1475 2009-04-07 - 7a00bba - lavc 52.23.0 - avcodec_decode_video/audio/subtitle
1476 The old decoding functions are deprecated, all new code should use the
1477 new functions avcodec_decode_video2(), avcodec_decode_audio3() and
1478 avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt
1479 argument instead of a const uint8_t *buf / int buf_size pair.
1481 2009-04-03 - 7b09db3 - lavu 50.3.0 - av_fifo_space()
1482 Introduce the av_fifo_space() function.
1484 2009-04-02 - fabd246 - lavc 52.23.0 - AVPacket
1485 Move AVPacket declaration from libavformat/avformat.h to
1486 libavcodec/avcodec.h.
1488 2009-03-22 - 6e08ca9 - lavu 50.2.0 - RGB32 pixel formats
1489 Convert the pixel formats PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR,
1490 PIX_FMT_BGRA, which were defined as macros, into enum PixelFormat values.
1491 Conversely PIX_FMT_RGB32, PIX_FMT_RGB32_1, PIX_FMT_BGR32 and
1492 PIX_FMT_BGR32_1 are now macros.
1493 avcodec_get_pix_fmt() now recognizes the "rgb32" and "bgr32" aliases.
1494 Re-sort the enum PixelFormat list accordingly.
1495 This change breaks API/ABI backward compatibility.
1497 2009-03-22 - f82674e - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants
1498 Add the enum PixelFormat values:
1499 PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,
1500 PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.
1502 2009-03-21 - ee6624e - lavu 50.0.0 - av_random*
1503 The Mersenne Twister PRNG implemented through the av_random* functions
1504 was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions
1507 2009-03-08 - 41dd680 - lavu 50.0.0 - AVFifoBuffer
1508 av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped
1509 and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write
1510 and av_fifo_realloc2.
1511 In addition, the order of the function arguments of av_fifo_generic_read
1512 was changed to match av_fifo_generic_write.
1513 The AVFifoBuffer/struct AVFifoBuffer may only be used in an opaque way by
1514 applications, they may not use sizeof() or directly access members.
1516 2009-03-01 - ec26457 - lavf 52.31.0 - Generic metadata API
1517 Introduce a new metadata API (see av_metadata_get() and friends).
1518 The old API is now deprecated and should not be used anymore. This especially
1519 includes the following structure fields:
1520 - AVFormatContext.title
1521 - AVFormatContext.author
1522 - AVFormatContext.copyright
1523 - AVFormatContext.comment
1524 - AVFormatContext.album
1525 - AVFormatContext.year
1526 - AVFormatContext.track
1527 - AVFormatContext.genre
1530 - AVProgram.provider_name