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 2014-06-xx - xxxxxxx - lavu 53.17.0 - imgutils.h
17 Add av_image_check_sar().
19 2014-06-xx - xxxxxxx - lavc 55.55.0 - avcodec.h
20 Add av_packet_rescale_ts() to simplify timestamp conversion.
22 2014-xx-xx - xxxxxxx - lavf 55.20.0 - avformat.h
23 The proper way for providing a hint about the desired timebase to the muxers
24 is now setting AVStream.time_base, instead of AVStream.codec.time_base as was
25 done previously. The old method is now deprecated.
27 2014-04-xx - xxxxxxx - lavc 55.54.0 - avcodec.h
28 Add AVCodecContext.side_data_only_packets to allow encoders to output packets
29 with only side data. This option may become mandatory in the future, so all
30 users are recommended to update their code and enable this option.
32 2014-xx-xx - xxxxxxx - lavu 53.16.0 - frame.h, pixfmt.h
33 Move all color-related enums (AVColorPrimaries, AVColorSpace, AVColorRange,
34 AVColorTransferCharacteristic, and AVChromaLocation) inside lavu.
35 Add AVFrame fields for them on the next lavu major bump.
37 2014-04-xx - xxxxxxx - lavr 1.3.0 - avresample.h
38 Add avresample_max_output_samples
40 2014-05-24 - xxxxxxx - lavf 55.19.0 - avformat.h
41 Add strict_std_compliance and related AVOptions to support experimental
44 2014-05-19 - xxxxxxx - lavf 55.18.0 - avformat.h
45 Add av_stream_get_side_data() to access stream-level side data
46 in the same way as av_packet_get_side_data().
48 2014-05-xx - xxxxxxx - lavu 53.15.0 - frame.h, display.h
49 Add AV_FRAME_DATA_DISPLAYMATRIX for exporting frame-level
50 spatial rendering on video frames for proper display.
52 2014-05-xx - xxxxxxx - lavc 55.53.0 - avcodec.h
53 Add AV_PKT_DATA_DISPLAYMATRIX for exporting packet-level
54 spatial rendering on video frames for proper display.
56 2014-05-xx - xxxxxxx - lavf 55.17.1 - avformat.h
57 Deprecate AVStream.pts and the AVFrac struct, which was its only use case.
58 Those fields were poorly defined and not meant to be public, so there is
59 no replacement for them.
61 2014-05-18 - fd05602 - lavc 55.52.0 - avcodec.h
62 Add avcodec_free_context(). From now on it should be used for freeing
65 2014-05-15 - 0c1959b - lavf 55.17.0 - avformat.h
66 Add AVMFT_FLAG_BITEXACT flag. Muxers now use it instead of checking
67 CODEC_FLAG_BITEXACT on the first stream.
69 2014-05-11 - 66e6c8a - lavu 53.14.0 - pixfmt.h
70 Add AV_PIX_FMT_VDA for new-style VDA acceleration.
72 2014-05-01 - a2941c8 - lavc 55.50.3 - avcodec.h
73 Deprecate CODEC_FLAG_MV0. It is replaced by the flag "mv0" in the
74 "mpv_flags" private option of the mpegvideo encoders.
76 2014-05-01 - 6484149 - lavc 55.50.2 - avcodec.h
77 Deprecate CODEC_FLAG_GMC. It is replaced by the "gmc" private option of the
80 2014-05-01 - b2c3171 - lavc 55.50.1 - avcodec.h
81 Deprecate CODEC_FLAG_NORMALIZE_AQP. It is replaced by the flag "naq" in the
82 "mpv_flags" private option of the mpegvideo encoders.
84 2014-05-01 - 5fcceda - avcodec.h
85 Deprecate CODEC_FLAG_INPUT_PRESERVED. Its functionality is replaced by passing
86 reference-counted frames to encoders.
88 2014-04-28 - ed4b757 - lavc 55.50.0 - dxva2.h
89 Add FF_DXVA2_WORKAROUND_INTEL_CLEARVIDEO for old Intel GPUs.
91 2014-04-22 - 502512e - lavu 53.13.0 - avutil.h
92 Add av_get_time_base_q().
94 2014-04-17 - 0983d48 - lavu 53.12.0 - crc.h
95 Add AV_CRC_16_ANSI_LE crc variant.
97 2014-04-07 - 8b17243 - lavu 53.11.0 - pixfmt.h
98 Add AV_PIX_FMT_YVYU422 pixel format.
100 2014-04-04 - 8542f9c - lavu 53.10.0 - replaygain.h
101 Full scale for peak values is now 100000 (instead of UINT32_MAX) and values
104 2014-04-03 - 7763118 - lavu 53.09.0 - log.h
105 Add AV_LOG(c) macro to have 256 color debug messages.
107 2014-03-24 - d161ae0 - lavu 53.08.0 - frame.h
108 Add av_frame_remove_side_data() for removing a single side data
109 instance from a frame.
111 2014-03-24 - 5a7e35d - lavu 53.07.0 - frame.h, replaygain.h
112 Add AV_FRAME_DATA_REPLAYGAIN for exporting replaygain tags.
113 Add a new header replaygain.h with the AVReplayGain struct.
115 2014-03-24 - 5a7e35d - lavc 55.36.0 - avcodec.h
116 Add AV_PKT_DATA_REPLAYGAIN for exporting replaygain tags.
118 2014-03-24 - 25b3258 - lavf 55.13.0 - avformat.h
119 Add AVStream.side_data and AVStream.nb_side_data for exporting stream-global
120 side data (e.g. replaygain tags, video rotation)
122 2014-03-24 - 0e2c3ee - lavc 55.35.0 - avcodec.h
123 Give the name AVPacketSideData to the previously anonymous struct used for
126 2014-03-16 - 1481d24 - lavu 53.06.0 - pixfmt.h
127 Add RGBA64 pixel format and variants.
129 2014-02-24 - 1155fd0 - lavu 53.05.0 - frame.h
130 Add av_frame_copy() for copying the frame data.
132 2014-02-22 - 7e86c27 - lavr 1.2.0 - avresample.h
133 Add avresample_is_open() for checking whether a resample context is open.
135 2014-02-19 - c3ecd96 - lavu 53.04.0 - opt.h
136 Add AV_OPT_FLAG_EXPORT and AV_OPT_FLAG_READONLY to mark options meant (only)
139 2014-02-19 - 6bb8720 - lavu 53.03.01 - opt.h
140 Deprecate unused AV_OPT_FLAG_METADATA.
142 ------------------------------8<-------------------------------------
143 10 branch was cut here
144 ----------------------------->8--------------------------------------
146 2014-02-15 - c98f316 - lavu 53.3.0 - frame.h
147 Add AV_FRAME_DATA_DOWNMIX_INFO value to the AVFrameSideDataType enum and
148 downmix_info.h API, which identify downmix-related metadata.
150 2014-02-04 - d9ae103 - lavf 55.11.0 - avformat.h
151 Add AVFormatContext.max_interleave_delta for controlling amount of buffering
154 2014-01-20 - 93c553c - lavc 55.32.1 - avcodec.h
155 Edges are not required anymore on video buffers allocated by get_buffer2()
156 (i.e. as if the CODEC_FLAG_EMU_EDGE flag was always on). Deprecate
157 CODEC_FLAG_EMU_EDGE and avcodec_get_edge_width().
159 2014-01-05 - 5b4797a - lavu 53.2.0 - frame.h
160 Add AV_FRAME_DATA_MATRIXENCODING value to the AVFrameSideDataType enum, which
161 identifies AVMatrixEncoding data.
163 2014-01-05 - 5c437fb - lavu 53.1.0 - channel_layout.h
164 Add values for various Dolby flags to the AVMatrixEncoding enum.
166 2013-12-20 - 2a41826 - lavc 55.30.0 - avcodec.h
169 2013-12-11 - b9fb59d,9431356,d7b3ee9 - lavc 55.28.1 - avcodec.h
170 av_frame_alloc(), av_frame_unref() and av_frame_free() now can and should be
171 used instead of avcodec_alloc_frame(), avcodec_get_frame_defaults() and
172 avcodec_free_frame() respectively. The latter three functions are deprecated.
174 2013-12-09 - 7e244c6- - lavu 52.20.0 - frame.h
175 Add AV_FRAME_DATA_STEREO3D value to the AVFrameSideDataType enum and
176 stereo3d.h API, that identify codec-independent stereo3d information.
178 2013-11-26 - 1eaac1d- - lavu 52.19.0 - frame.h
179 Add AV_FRAME_DATA_A53_CC value to the AVFrameSideDataType enum, which
180 identifies ATSC A53 Part 4 Closed Captions data.
182 2013-11-14 - cce3e0a - lavu 52.18.0 - mem.h
183 Move av_fast_malloc() and av_fast_realloc() for libavcodec to libavutil.
185 2013-11-14 - 8941971 - lavc 55.27.0 - avcodec.h
186 Deprecate AVCodecContext.error_rate, it is replaced by the 'error_rate'
187 private option of the mpegvideo encoder family.
189 2013-11-14 - 728c465 - lavc 55.26.0 - vdpau.h
190 Add av_vdpau_get_profile().
191 Add av_vdpau_alloc_context(). This function must from now on be
192 used for allocating AVVDPAUContext.
194 2013-11-04 - cd8f772 - lavc 55.25.0 - avcodec.h
195 Add ITU-R BT.2020 and other not yet included values to color primaries,
196 transfer characteristics and colorspaces.
198 2013-10-31 - 28096e0 - lavu 52.17.0 - frame.h
199 Add AVFrame.flags and AV_FRAME_FLAG_CORRUPT.
201 2013-09-28 - 0767bfd - lavfi 3.11.0 - avfilter.h
202 Add AVFilterGraph.execute and AVFilterGraph.opaque for custom slice threading
205 2013-09-21 - e208e6d - lavu 52.16.0 - pixfmt.h
206 Add interleaved 4:2:2 8/10-bit formats AV_PIX_FMT_NV16 and
209 2013-09-16 - 3feb3d6 - lavu 52.15.0 - mem.h
212 2013-08-10 - 5a9a9d4 - lavc 55.16.0 - avcodec.h
213 Extend AVPacket API with av_packet_unref, av_packet_ref,
214 av_packet_move_ref, av_packet_copy_props, av_packet_free_side_data.
216 2013-08-05 - f824535 - lavc 55.13.0 - avcodec.h
217 Deprecate the bitstream-related members from struct AVVDPAUContext.
218 The bistream buffers no longer need to be explicitly freed.
220 2013-08-05 - 549294f - lavc 55.12.0 - avcodec.h
221 Deprecate the CODEC_CAP_HWACCEL_VDPAU codec capability. Use CODEC_CAP_HWACCEL
222 and select the AV_PIX_FMT_VDPAU format with get_format() instead.
224 2013-08-05 - a0ad5d0 - lavu 52.14.0 - pixfmt.h
225 Deprecate AV_PIX_FMT_VDPAU_*. Use AV_PIX_FMT_VDPAU instead.
227 2013-08-02 - a8b1927 - lavc 55.11.0 - avcodec.h
228 Add output_picture_number to AVCodecParserContext.
230 2013-06-24 - 95d5246 - lavc 55.10.0 - avcodec.h
231 Add MPEG-2 AAC profiles
233 2013-06-04 - fc962d4 - lavu 52.13.0 - mem.h
234 Add av_realloc_array and av_reallocp_array
236 2013-05-24 - 129bb23 - lavfi 3.10.0 - avfilter.h
237 Add support for slice multithreading to lavfi. Filters supporting threading
238 are marked with AVFILTER_FLAG_SLICE_THREADS.
239 New fields AVFilterContext.thread_type, AVFilterGraph.thread_type and
240 AVFilterGraph.nb_threads (accessible directly or through AVOptions) may be
241 used to configure multithreading.
243 2013-05-24 - 2a6eaea - lavu 52.12.0 - cpu.h
244 Add av_cpu_count() function for getting the number of logical CPUs.
246 2013-05-24 - b493847 - lavc 55.7.0 - avcodec.h
247 Add picture_structure to AVCodecParserContext.
249 2013-05-15 - e6c4ac7 - lavu 52.11.0 - pixdesc.h
250 Replace PIX_FMT_* flags with AV_PIX_FMT_FLAG_*.
252 2013-04-03 - 507b1e4 - lavc 55.4.0 - avcodec.h
253 Add field_order to AVCodecParserContext.
255 2013-04-19 - 5e83d9a - lavc 55.2.0 - avcodec.h
256 Add CODEC_FLAG_UNALIGNED to allow decoders to produce unaligned output.
258 2013-04-11 - lavfi 3.8.0
259 38f0c07 - Move all content from avfiltergraph.h to avfilter.h. Deprecate
260 avfilterhraph.h, user applications should include just avfilter.h
261 bc1a985 - Add avfilter_graph_alloc_filter(), deprecate avfilter_open() and
262 avfilter_graph_add_filter().
263 1113672 - Add AVFilterContext.graph pointing to the AVFilterGraph that contains the
265 48a5ada - Add avfilter_init_str(), deprecate avfilter_init_filter().
266 1ba95a9 - Add avfilter_init_dict().
267 7cdd737 - Add AVFilter.flags field and AVFILTER_FLAG_DYNAMIC_{INPUTS,OUTPUTS} flags.
268 7e8fe4b - Add avfilter_pad_count() for counting filter inputs/outputs.
269 fa2a34c - Add avfilter_next(), deprecate av_filter_next().
270 Deprecate avfilter_uninit().
272 2013-04-09 - lavfi 3.7.0 - avfilter.h
273 b439c99 - Add AVFilter.priv_class for exporting filter options through the
274 AVOptions API in the similar way private options work in lavc and lavf.
275 8114c10 - Add avfilter_get_class().
276 Switch all filters to use AVOptions.
278 2013-03-19 - 2c328a9 - lavu 52.9.0 - pixdesc.h
279 Add av_pix_fmt_count_planes() function for counting planes in a pixel format.
281 2013-03-16 - 42c7c61 - lavfi 3.6.0
282 Add AVFilterGraph.nb_filters, deprecate AVFilterGraph.filter_count.
284 2013-03-08 - Reference counted buffers - lavu 52.8.0, lavc 55.0.0, lavf 55.0.0,
285 lavd 54.0.0, lavfi 3.5.0
286 8e401db, 1cec062 - add a new API for reference counted buffers and buffer
287 pools (new header libavutil/buffer.h).
288 1afddbe - add AVPacket.buf to allow reference counting for the AVPacket data.
289 Add av_packet_from_data() function for constructing packets from
291 7ecc2d4 - move AVFrame from lavc to lavu (new header libavutil/frame.h), add
292 AVFrame.buf/extended_buf to allow reference counting for the AVFrame
293 data. Add new API for working with reference-counted AVFrames.
294 759001c - add the refcounted_frames field to AVCodecContext to make audio and
295 video decoders return reference-counted frames. Add get_buffer2()
296 callback to AVCodecContext which allocates reference-counted frames.
297 Add avcodec_default_get_buffer2() as the default get_buffer2()
299 Deprecate AVCodecContext.get_buffer() / release_buffer() /
300 reget_buffer(), avcodec_default_get_buffer(),
301 avcodec_default_reget_buffer(), avcodec_default_release_buffer().
302 Remove avcodec_default_free_buffers(), which should not have ever
303 been called from outside of lavc.
304 Deprecate the following AVFrame fields:
305 * base -- is now stored in AVBufferRef
306 * reference, type, buffer_hints -- are unnecessary in the new API
307 * hwaccel_picture_private, owner, thread_opaque -- should not
308 have been acessed from outside of lavc
309 * qscale_table, qstride, qscale_type, mbskip_table, motion_val,
310 mb_type, dct_coeff, ref_index -- mpegvideo-specific tables,
311 which are not exported anymore.
312 7e35037 - switch libavfilter to use AVFrame instead of AVFilterBufferRef. Add
313 av_buffersrc_add_frame(), deprecate av_buffersrc_buffer().
314 Add av_buffersink_get_frame() and av_buffersink_get_samples(),
315 deprecate av_buffersink_read() and av_buffersink_read_samples().
316 Deprecate AVFilterBufferRef and all functions for working with it.
318 2013-03-17 - 12c5c1d - lavu 52.8.0 - avstring.h
319 Add av_isdigit, av_isgraph, av_isspace, av_isxdigit.
321 2013-02-23 - 9f12235 - lavfi 3.4.0 - avfiltergraph.h
322 Add resample_lavr_opts to AVFilterGraph for setting libavresample options
323 for auto-inserted resample filters.
325 2013-01-25 - 38c1466 - lavu 52.7.0 - dict.h
326 Add av_dict_parse_string() to set multiple key/value pairs at once from a
329 2013-01-25 - b85a5e8 - lavu 52.6.0 - avstring.h
332 2013-01-15 - 8ee288d - lavu 52.5.0 - hmac.h
335 2013-01-13 - 44e065d - lavc 54.36.0 - vdpau.h
336 Add AVVDPAUContext struct for VDPAU hardware-accelerated decoding.
338 2013-01-12 - 169fb94 - lavu 52.4.0 - pixdesc.h
339 Add AV_PIX_FMT_VDPAU flag.
341 2013-01-07 - 074a00d - lavr 1.1.0
342 Add avresample_set_channel_mapping() for input channel reordering,
343 duplication, and silencing.
345 ------------------------------8<-------------------------------------
346 9 branch was cut here
347 ----------------------------->8--------------------------------------
349 2012-12-29 - d8fd06c - lavu 52.3.0 - avstring.h
350 Add av_basename() and av_dirname().
352 2012-11-11 - 5980f5d - lavu 52.2.0 - audioconvert.h
353 Rename audioconvert.h to channel_layout.h. audioconvert.h is now deprecated.
355 2012-11-05 - dfde8a3 - lavu 52.1.0 - intmath.h
356 Add av_ctz() for trailing zero bit count
358 2012-10-21 - a893655 - lavu 51.45.0 - error.h
359 Add AVERROR_EXPERIMENTAL
361 2012-10-12 - d2fcb35 - lavu 51.44.0 - pixdesc.h
362 Add functions for accessing pixel format descriptors.
363 Accessing the av_pix_fmt_descriptors array directly is now
366 2012-10-11 - 9a92aea - lavu 51.43.0 - aes.h, md5.h, sha.h, tree.h
367 Add functions for allocating the opaque contexts for the algorithms,
368 deprecate the context size variables.
370 2012-10-10 - b522000 - lavf 54.18.0 - avio.h
371 Add avio_closep to complement avio_close.
373 2012-10-08 - 78071a1 - lavu 51.42.0 - pixfmt.h
374 Rename PixelFormat to AVPixelFormat and all PIX_FMT_* to AV_PIX_FMT_*.
375 To provide backwards compatibility, PixelFormat is now #defined as
377 Note that this can break user code that includes pixfmt.h and uses the
378 'PixelFormat' identifier. Such code should either #undef PixelFormat
379 or stop using the PixelFormat name.
381 2012-10-05 - e7ba5b1 - lavr 1.0.0 - avresample.h
382 Data planes parameters to avresample_convert() and
383 avresample_read() are now uint8_t** instead of void**.
384 Libavresample is now stable.
386 2012-09-24 - a42aada - lavc 54.28.0 - avcodec.h
387 Add avcodec_free_frame(). This function must now
388 be used for freeing an AVFrame.
390 2012-09-12 - 8919fee - lavu 51.41.0 - audioconvert.h
391 Added AV_CH_LOW_FREQUENCY_2 channel mask value.
393 2012-09-04 - 686a329 - lavu 51.40.0 - opt.h
394 Reordered the fields in default_val in AVOption, changed which
395 default_val field is used for which AVOptionType.
397 2012-08-30 - a231832 - lavc 54.26.1 - avcodec.h
398 Add codec descriptor properties AV_CODEC_PROP_LOSSY and
399 AV_CODEC_PROP_LOSSLESS.
401 2012-08-18 - lavc 54.26 - avcodec.h
402 Add codec descriptors for accessing codec properties without having
403 to refer to a specific decoder or encoder.
405 c223d79 - Add an AVCodecDescriptor struct and functions
406 avcodec_descriptor_get() and avcodec_descriptor_next().
407 51efed1 - Add AVCodecDescriptor.props and AV_CODEC_PROP_INTRA_ONLY.
408 91e59fe - Add avcodec_descriptor_get_by_name().
411 2012-08-08 - 1d9c2dc - lavu 51.39 - avutil.h
412 Don't implicitly include libavutil/common.h in avutil.h
414 2012-08-08 - 987170c - lavu 51.38 - dict.h
417 2012-08-07 - 104e10f - lavc 54.25 - avcodec.h
418 Rename CodecID to AVCodecID and all CODEC_ID_* to AV_CODEC_ID_*.
419 To provide backwards compatibility, CodecID is now #defined as AVCodecID.
420 Note that this can break user code that includes avcodec.h and uses the
421 'CodecID' identifier. Such code should either #undef CodecID or stop using the
424 2012-08-03 - 239fdf1 - lavu 51.37.1 - cpu.h
425 lsws 2.1.1 - swscale.h
426 Rename AV_CPU_FLAG_MMX2 ---> AV_CPU_FLAG_MMXEXT.
427 Rename SWS_CPU_CAPS_MMX2 ---> SWS_CPU_CAPS_MMXEXT.
429 2012-07-29 - 681ed00 - lavf 54.13.0 - avformat.h
430 Add AVFMT_FLAG_NOBUFFER for low latency use cases.
432 2012-07-20 - b70d89a - lavfi 3.0.0 - avfilter.h
433 Add avfilter_unref_bufferp().
435 2012-07-10 - 5fade8a - lavu 51.37.0
436 Add av_malloc_array() and av_mallocz_array()
438 2012-06-22 - d3d3a32 - lavu 51.34.0
441 2012-06-20 - ae0a301 - lavu 51.33.0
442 Move av_gettime() to libavutil, add libavutil/time.h
444 2012-06-09 - 3971be0 - lavr 0.0.3
445 Add a parameter to avresample_build_matrix() for Dolby/DPLII downmixing.
447 2012-06-12 - 9baeff9 - lavfi 2.23.0 - avfilter.h
448 Add AVFilterContext.nb_inputs/outputs. Deprecate
449 AVFilterContext.input/output_count.
451 2012-06-12 - 84b9fbe - lavfi 2.22.0 - avfilter.h
452 Add avfilter_pad_get_type() and avfilter_pad_get_name(). Those
453 should now be used instead of accessing AVFilterPad members
456 2012-06-12 - b0f0dfc - lavu 51.32.0 - audioconvert.h
457 Add av_get_channel_layout_channel_index(), av_get_channel_name()
458 and av_channel_layout_extract_channel().
460 2012-05-25 - 154486f - lavu 51.31.0 - opt.h
463 2012-05-26 - e9cef89 - lavf 54.3.0
464 Add AVFMT_TS_NONSTRICT format flag to indicate that a muxer supports
465 non-increasing monotone timestamps.
467 2012-05-15 - lavfi 2.17.0
468 Add support for audio filters
469 ac71230/a2cd9be - add video/audio buffer sink in a new installed
471 720c6b7 - add av_buffersrc_write_frame(), deprecate
472 av_vsrc_buffer_add_frame()
473 ab16504 - add avfilter_copy_buf_props()
474 9453c9e - add extended_data to AVFilterBuffer
475 1b8c927 - add avfilter_get_audio_buffer_ref_from_arrays()
477 2012-05-09 - lavu 51.30.0 - samplefmt.h
478 142e740 - add av_samples_copy()
479 6d7f617 - add av_samples_set_silence()
481 2012-05-09 - a5117a2 - lavc 54.13.1
482 For audio formats with fixed frame size, the last frame
483 no longer needs to be padded with silence, libavcodec
484 will handle this internally (effectively all encoders
485 behave as if they had CODEC_CAP_SMALL_LAST_FRAME set).
487 2012-05-07 - 828bd08 - lavc 54.13.0 - avcodec.h
488 Add sample_rate and channel_layout fields to AVFrame.
490 2012-05-01 - 4010d72 - lavr 0.0.1
491 Change AV_MIX_COEFF_TYPE_Q6 to AV_MIX_COEFF_TYPE_Q8.
493 2012-04-25 - 3527a73 - lavu 51.29.0 - cpu.h
494 Add av_parse_cpu_flags()
496 2012-04-24 - c8af852 - lavr 0.0.0
497 Add libavresample audio conversion library
499 2012-04-20 - 0c0d1bc - lavu 51.28.0 - audio_fifo.h
500 Add audio FIFO functions:
502 av_audio_fifo_alloc()
503 av_audio_fifo_realloc()
504 av_audio_fifo_write()
506 av_audio_fifo_drain()
507 av_audio_fifo_reset()
509 av_audio_fifo_space()
511 2012-04-14 - lavfi 2.16.0 - avfiltergraph.h
512 d7bcc71 Add avfilter_graph_parse2().
513 91d3cbe Add avfilter_inout_alloc() and avfilter_inout_free().
515 2012-04-08 - 4d693b0 - lavu 51.27.0 - samplefmt.h
516 Add av_get_packed_sample_fmt() and av_get_planar_sample_fmt()
518 2012-04-05 - 5cc51a5 - lavu 51.26.0 - audioconvert.h
519 Add av_get_default_channel_layout()
521 2012-03-20 - 3c90cc2 - lavfo 54.2.0
522 Deprecate av_read_packet(), use av_read_frame() with
523 AVFMT_FLAG_NOPARSE | AVFMT_FLAG_NOFILLIN in AVFormatContext.flags
525 2012-03-06 - 4d851f8 - lavu 51.25.0 - cpu.h
526 Add av_set_cpu_flags_mask().
528 2012-03-05 - lavc 54.8.0
529 6699d07 Add av_get_exact_bits_per_sample()
530 9524cf7 Add av_get_audio_frame_duration()
532 2012-03-04 - 44fe77b - lavc 54.7.0 - avcodec.h
533 Add av_codec_is_encoder/decoder().
535 2012-03-01 - 442c132 - lavc 54.3.0 - avcodec.h
536 Add av_packet_shrink_side_data.
538 2012-02-29 - dd2a4bc - lavf 54.2.0 - avformat.h
539 Add AVStream.attached_pic and AV_DISPOSITION_ATTACHED_PIC,
540 used for dealing with attached pictures/cover art.
542 2012-02-25 - c9bca80 - lavu 51.24.0 - error.h
544 NOTE: this was backported to 0.8
546 2012-02-20 - e9cda85 - lavc 54.2.0
547 Add duration field to AVCodecParserContext
549 2012-02-20 - 0b42a93 - lavu 51.23.1 - mathematics.h
550 Add av_rescale_q_rnd()
552 2012-02-08 - 38d5533 - lavu 51.22.1 - pixdesc.h
553 Add PIX_FMT_PSEUDOPAL flag.
555 2012-02-08 - 52f82a1 - lavc 54.01.0
556 Add avcodec_encode_video2() and deprecate avcodec_encode_video().
558 2012-02-01 - 316fc74 - lavc 54.01.0
559 Add av_fast_padded_malloc() as alternative for av_realloc() when aligned
560 memory is required. The buffer will always have FF_INPUT_BUFFER_PADDING_SIZE
561 zero-padded bytes at the end.
563 2012-01-31 - dd6d3b0 - lavf 54.01.0
564 Add avformat_get_riff_video_tags() and avformat_get_riff_audio_tags().
565 NOTE: this was backported to 0.8
567 2012-01-31 - af08d9a - lavc 54.01.0
568 Add avcodec_is_open() function.
569 NOTE: this was backported to 0.8
571 2012-01-30 - 8b93312 - lavu 51.22.0 - intfloat.h
572 Add a new installed header libavutil/intfloat.h with int/float punning
574 NOTE: this was backported to 0.8
576 2012-01-25 - lavf 53.22.0
577 f1caf01 Allow doing av_write_frame(ctx, NULL) for flushing possible
578 buffered data within a muxer. Added AVFMT_ALLOW_FLUSH for
579 muxers supporting it (av_write_frame makes sure it is called
580 only for muxers with this flag).
582 ------------------------------8<-------------------------------------
583 0.8 branch was cut here
584 ----------------------------->8--------------------------------------
586 2012-01-15 - lavc 53.34.0
587 New audio encoding API:
588 b2c75b6 Add CODEC_CAP_VARIABLE_FRAME_SIZE capability for use by audio
590 5ee5fa0 Add avcodec_fill_audio_frame() as a convenience function.
591 b2c75b6 Add avcodec_encode_audio2() and deprecate avcodec_encode_audio().
592 Add AVCodec.encode2().
594 2012-01-12 - 3167dc9 - lavfi 2.15.0
595 Add a new installed header -- libavfilter/version.h -- with version macros.
597 2011-01-03 - b73ec05 - lavu 51.21.0
600 2011-12-25 - lavfi 2.14.0
601 e1d9dbf Add a new installed header - buffersrc.h
602 It contains a new function av_buffersrc_buffer() that allows passing
603 frames to the 'buffer' filter, but unlike av_vsrc_buffer_add_frame()
604 it allows for direct rendering.
605 1c9e340 Add avfilter_copy_frame_props() for copying properties from
606 AVFrame to AVFilterBufferRef.
608 2011-12-25 - lavc 53.31.0
609 Add the following new fields to AVFrame:
610 b58dbb5 sample_aspect_ratio
611 3a2ddf7 width, height
614 2011-12-18 - 8400b12 - lavc 53.28.1
615 Deprecate AVFrame.age. The field is unused.
617 2011-12-12 - 5266045 - lavf 53.17.0
618 Add avformat_close_input().
619 Deprecate av_close_input_file() and av_close_input_stream().
621 2011-12-02 - 0eea212 - lavc 53.25.0
622 Add nb_samples and extended_data fields to AVFrame.
623 Deprecate AVCODEC_MAX_AUDIO_FRAME_SIZE.
624 Deprecate avcodec_decode_audio3() in favor of avcodec_decode_audio4().
625 avcodec_decode_audio4() writes output samples to an AVFrame, which allows
626 audio decoders to use get_buffer().
628 2011-12-04 - 560f773 - lavc 53.24.0
629 Change AVFrame.data[4]/base[4]/linesize[4]/error[4] to [8] at next major bump.
630 Change AVPicture.data[4]/linesize[4] to [8] at next major bump.
631 Change AVCodecContext.error[4] to [8] at next major bump.
632 Add AV_NUM_DATA_POINTERS to simplify the bump transition.
634 2011-11-23 - bbb46f3 - lavu 51.18.0
635 Add av_samples_get_buffer_size(), av_samples_fill_arrays(), and
636 av_samples_alloc(), to samplefmt.h.
638 2011-11-23 - 8889cc4 - lavu 51.17.0
639 Add planar sample formats and av_sample_fmt_is_planar() to samplefmt.h.
641 2011-11-19 - f3a29b7 - lavc 53.21.0
642 Move some AVCodecContext fields to a new private struct, AVCodecInternal,
643 which is accessed from a new field, AVCodecContext.internal.
645 AVCodecContext.internal_buffer --> AVCodecInternal.buffer
646 AVCodecContext.internal_buffer_count --> AVCodecInternal.buffer_count
647 AVCodecContext.is_copy --> AVCodecInternal.is_copy
649 2011-11-16 - 6270671 - lavu 51.16.0
652 2011-11-13 - lavf 53.15.0
653 New interrupt callback API, allowing per-AVFormatContext/AVIOContext
655 6aa0b98 Add AVIOInterruptCB struct and the interrupt_callback field to
657 1dee0ac Add avio_open2() with additional parameters. Those are
658 an interrupt callback and an options AVDictionary.
659 This will allow passing AVOptions to protocols after lavf
662 2011-11-06 - ba04ecf - lavu 51.14.0
663 Add av_strcasecmp() and av_strncasecmp() to avstring.h.
665 2011-11-06 - 07b172f - lavu 51.13.0
666 Add av_toupper()/av_tolower()
668 2011-11-05 - b6d08f4 - lavf 53.13.0
669 Add avformat_network_init()/avformat_network_deinit()
671 2011-10-27 - 512557b - lavc 53.15.0
672 Remove avcodec_parse_frame.
673 Deprecate AVCodecContext.parse_only and CODEC_CAP_PARSE_ONLY.
675 2011-10-19 - 569129a - lavf 53.10.0
676 Add avformat_new_stream(). Deprecate av_new_stream().
678 2011-10-13 - b631fba - lavf 53.9.0
679 Add AVFMT_NO_BYTE_SEEK AVInputFormat flag.
681 2011-10-12 - lavu 51.12.0
682 AVOptions API rewrite.
684 - 145f741 FF_OPT_TYPE* renamed to AV_OPT_TYPE_*
685 - new setting/getting functions with slightly different semantics:
686 dac66da av_set_string3 -> av_opt_set
687 av_set_double -> av_opt_set_double
688 av_set_q -> av_opt_set_q
689 av_set_int -> av_opt_set_int
691 41d9d51 av_get_string -> av_opt_get
692 av_get_double -> av_opt_get_double
693 av_get_q -> av_opt_get_q
694 av_get_int -> av_opt_get_int
696 - 8c5dcaa trivial rename av_next_option -> av_opt_next
697 - 641c7af new functions - av_opt_child_next, av_opt_child_class_next
700 2011-09-03 - fb4ca26 - lavc 53.10.0
703 Add {avcodec,avformat,sws}_get_class().
705 2011-09-03 - c11fb82 - lavu 51.10.0
706 Add AV_OPT_SEARCH_FAKE_OBJ flag for av_opt_find() function.
708 2011-08-26 - lavu 51.9.0
709 - f2011ed Add av_fifo_peek2(), deprecate av_fifo_peek().
710 - add41de..abc78a5 Do not include intfloat_readwrite.h,
711 mathematics.h, rational.h, pixfmt.h, or log.h from avutil.h.
713 2011-08-16 - 48f9e45 - lavf 53.4.0
714 Add avformat_query_codec().
716 2011-08-16 - bca06e7 - lavc 53.8.0
717 Add avcodec_get_type().
719 2011-08-06 - 2f63440 - lavf 53.4.0
720 Add error_recognition to AVFormatContext.
722 2011-08-02 - 9d39cbf - lavc 53.7.1
723 Add AV_PKT_FLAG_CORRUPT AVPacket flag.
725 2011-07-10 - a67c061 - lavf 53.3.0
726 Add avformat_find_stream_info(), deprecate av_find_stream_info().
727 NOTE: this was backported to 0.7
729 2011-07-10 - 0b950fe - lavc 53.6.0
730 Add avcodec_open2(), deprecate avcodec_open().
731 NOTE: this was backported to 0.7
733 Add avcodec_alloc_context3. Deprecate avcodec_alloc_context() and
734 avcodec_alloc_context2().
736 2011-06-23 - 67e9ae1 - lavu 51.8.0 - attributes.h
737 Add av_printf_format().
739 ------------------------------8<-------------------------------------
740 0.7 branch was cut here
741 ----------------------------->8--------------------------------------
743 2011-06-16 - 05e84c9, 25de595 - lavf 53.2.0 - avformat.h
744 Add avformat_open_input and avformat_write_header().
745 Deprecate av_open_input_stream, av_open_input_file,
746 AVFormatParameters and av_write_header.
748 2011-06-16 - 7e83e1c, dc59ec5 - lavu 51.7.0 - opt.h
749 Add av_opt_set_dict() and av_opt_find().
750 Deprecate av_find_opt().
751 Add AV_DICT_APPEND flag.
753 2011-06-10 - cb7c11c - lavu 51.6.0 - opt.h
754 Add av_opt_flag_is_set().
756 2011-06-08 - d9f80ea - lavu 51.5.0 - AVMetadata
757 Move AVMetadata from lavf to lavu and rename it to
758 AVDictionary -- new installed header dict.h.
759 All av_metadata_* functions renamed to av_dict_*.
761 2011-06-07 - a6703fa - lavu 51.4.0 - av_get_bytes_per_sample()
762 Add av_get_bytes_per_sample() in libavutil/samplefmt.h.
763 Deprecate av_get_bits_per_sample_fmt().
765 2011-06-05 - b39b062 - lavu 51.3.0 - opt.h
766 Add av_opt_free convenience function.
768 2011-05-28 - 0420bd7 - lavu 51.2.0 - pixdesc.h
769 Add av_get_pix_fmt_name() in libavutil/pixdesc.h, and deprecate
770 avcodec_get_pix_fmt_name() in libavcodec/avcodec.h in its favor.
772 2011-05-25 - 30315a8 - lavf 53.1.0 - avformat.h
773 Add fps_probe_size to AVFormatContext.
775 2011-05-18 - 64150ff - lavc 53.4.0 - AVCodecContext.request_sample_fmt
776 Add request_sample_fmt field to AVCodecContext.
778 2011-05-10 - 188dea1 - lavc 53.3.0 - avcodec.h
779 Deprecate AVLPCType and the following fields in
780 AVCodecContext: lpc_coeff_precision, prediction_order_method,
781 min_partition_order, max_partition_order, lpc_type, lpc_passes.
782 Corresponding FLAC encoder options should be used instead.
784 2011-04-26 - bebe72f - lavu 51.1.0 - avutil.h
785 Add AVPictureType enum and av_get_picture_type_char(), deprecate
786 FF_*_TYPE defines and av_get_pict_type_char() defined in
787 libavcodec/avcodec.h.
789 2011-04-26 - 10d3940 - lavfi 2.3.0 - avfilter.h
790 Add pict_type and key_frame fields to AVFilterBufferRefVideo.
792 2011-04-26 - 7a11c82 - lavfi 2.2.0 - vsrc_buffer
793 Add sample_aspect_ratio fields to vsrc_buffer arguments
795 2011-04-21 - 94f7451 - lavc 53.1.0 - avcodec.h
796 Add CODEC_CAP_SLICE_THREADS for codecs supporting sliced threading.
798 2011-04-15 - lavc 52.120.0 - avcodec.h
799 AVPacket structure got additional members for passing side information:
800 4de339e introduce side information for AVPacket
801 2d8591c make containers pass palette change in AVPacket
803 2011-04-12 - lavf 52.107.0 - avio.h
804 Avio cleanup, part II - deprecate the entire URLContext API:
805 175389c add avio_check as a replacement for url_exist
806 ff1ec0c add avio_pause and avio_seek_time as replacements
807 for _av_url_read_fseek/fpause
808 cdc6a87 deprecate av_protocol_next(), avio_enum_protocols
809 should be used instead.
810 80c6e23 rename url_set_interrupt_cb->avio_set_interrupt_cb.
811 f87b1b3 rename open flags: URL_* -> AVIO_*
812 f8270bb add avio_enum_protocols.
813 5593f03 deprecate URLProtocol.
814 c486dad deprecate URLContext.
815 026e175 deprecate the typedef for URLInterruptCB
816 8e76a19 deprecate av_register_protocol2.
817 b840484 deprecate URL_PROTOCOL_FLAG_NESTED_SCHEME
818 1305d93 deprecate av_url_read_seek
819 fa104e1 deprecate av_url_read_pause
820 727c7aa deprecate url_get_filename().
821 5958df3 deprecate url_max_packet_size().
822 1869ea0 deprecate url_get_file_handle().
823 32a97d4 deprecate url_filesize().
824 e52a914 deprecate url_close().
825 58a48c6 deprecate url_seek().
826 925e908 deprecate url_write().
827 dce3756 deprecate url_read_complete().
828 bc371ac deprecate url_read().
829 0589da0 deprecate url_open().
830 62eaaea deprecate url_connect.
831 5652bb9 deprecate url_alloc.
832 333e894 deprecate url_open_protocol
833 e230705 deprecate url_poll and URLPollEntry
835 2011-04-10 - lavu 50.40.0 - pixfmt.h
836 Add PIX_FMT_BGR48LE and PIX_FMT_BGR48BE pixel formats
838 2011-04-08 - lavf 52.106.0 - avformat.h
839 Minor avformat.h cleanup:
840 a9bf9d8 deprecate av_guess_image2_codec
841 c3675df rename avf_sdp_create->av_sdp_create
843 2011-04-03 - lavf 52.105.0 - avio.h
844 Large-scale renaming/deprecating of AVIOContext-related functions:
845 724f6a0 deprecate url_fdopen
846 403ee83 deprecate url_open_dyn_packet_buf
847 6dc7d80 rename url_close_dyn_buf -> avio_close_dyn_buf
848 b92c545 rename url_open_dyn_buf -> avio_open_dyn_buf
849 8978fed introduce an AVIOContext.seekable field as a replacement for
850 AVIOContext.is_streamed and url_is_streamed()
851 b64030f deprecate get_checksum()
852 4c4427a deprecate init_checksum()
853 4ec153b deprecate udp_set_remote_url/get_local_port
854 933e90a deprecate av_url_read_fseek/fpause
855 8d9769a deprecate url_fileno
856 b7f2fdd rename put_flush_packet -> avio_flush
857 35f1023 deprecate url_close_buf
858 83fddae deprecate url_open_buf
859 d9d86e0 rename url_fprintf -> avio_printf
860 59f65d9 deprecate url_setbufsize
861 3e68b3b deprecate url_ferror
862 66e5b1d deprecate url_feof
863 e8bb2e2 deprecate url_fget_max_packet_size
864 76aa876 rename url_fsize -> avio_size
865 e519753 deprecate url_fgetc
866 655e45e deprecate url_fgets
867 a2704c9 rename url_ftell -> avio_tell
868 e16ead0 deprecate get_strz() in favor of avio_get_str
869 0300db8,2af07d3 rename url_fskip -> avio_skip
870 6b4aa5d rename url_fseek -> avio_seek
871 61840b4 deprecate put_tag
872 22a3212 rename url_fopen/fclose -> avio_open/close.
873 0ac8e2b deprecate put_nbyte
874 77eb550 rename put_byte -> avio_w8
875 put_[b/l]e<type> -> avio_w[b/l]<type>
876 put_buffer -> avio_write
877 b7effd4 rename get_byte -> avio_r8,
878 get_[b/l]e<type> -> avio_r[b/l]<type>
879 get_buffer -> avio_read
880 b3db9ce deprecate get_partial_buffer
881 8d9ac96 rename av_alloc_put_byte -> avio_alloc_context
883 2011-03-25 - 34b47d7 - lavc 52.115.0 - AVCodecContext.audio_service_type
884 Add audio_service_type field to AVCodecContext.
886 2011-03-02 - 863c471 - lavf 52.103.0 - av_pkt_dump2, av_pkt_dump_log2
887 Add new functions av_pkt_dump2, av_pkt_dump_log2 that uses the
888 source stream timebase for outputting timestamps. Deprecate
889 av_pkt_dump and av_pkt_dump_log.
891 2011-02-20 - e731b8d - lavf 52.102.0 - avio.h
892 * e731b8d - rename init_put_byte() to ffio_init_context(), deprecating the
893 original, and move it to a private header so it is no longer
894 part of our public API. Instead, use av_alloc_put_byte().
895 * ae628ec - rename ByteIOContext to AVIOContext.
897 2011-02-16 - 09d171b - lavf 52.101.0 - avformat.h
898 lavu 52.39.0 - parseutils.h
899 * 610219a - Add av_ prefix to dump_format().
900 * f6c7375 - Replace parse_date() in lavf with av_parse_time() in lavu.
901 * ab0287f - Move find_info_tag from lavf to lavu and add av_prefix to it.
903 2011-02-15 - lavu 52.38.0 - merge libavcore
904 libavcore is merged back completely into libavutil
906 2011-02-10 - 55bad0c - lavc 52.113.0 - vbv_delay
907 Add vbv_delay field to AVCodecContext
909 2011-02-14 - 24a83bd - lavf 52.100.0 - AV_DISPOSITION_CLEAN_EFFECTS
910 Add AV_DISPOSITION_CLEAN_EFFECTS disposition flag.
912 2011-02-14 - 910b5b8 - lavfi 1.76.0 - AVFilterLink sample_aspect_ratio
913 Add sample_aspect_ratio field to AVFilterLink.
915 2011-02-10 - 12c14cd - lavf 52.99.0 - AVStream.disposition
916 Add AV_DISPOSITION_HEARING_IMPAIRED and AV_DISPOSITION_VISUAL_IMPAIRED.
918 2011-02-09 - 5592734 - lavc 52.112.0 - avcodec_thread_init()
919 Deprecate avcodec_thread_init()/avcodec_thread_free() use; instead
920 set thread_count before calling avcodec_open.
922 2011-02-09 - 778b08a - lavc 52.111.0 - threading API
923 Add CODEC_CAP_FRAME_THREADS with new restrictions on get_buffer()/
924 release_buffer()/draw_horiz_band() callbacks for appropriate codecs.
925 Add thread_type and active_thread_type fields to AVCodecContext.
927 2011-02-08 - 3940caa - lavf 52.98.0 - av_probe_input_buffer
928 Add av_probe_input_buffer() to avformat.h for probing format from a
931 2011-02-06 - fe174fc - lavf 52.97.0 - avio.h
932 Add flag for non-blocking protocols: URL_FLAG_NONBLOCK
934 2011-02-04 - f124b08 - lavf 52.96.0 - avformat_free_context()
935 Add avformat_free_context() in avformat.h.
937 2011-02-03 - f5b82f4 - lavc 52.109.0 - add CODEC_ID_PRORES
938 Add CODEC_ID_PRORES to avcodec.h.
940 2011-02-03 - fe9a3fb - lavc 52.109.0 - H.264 profile defines
941 Add defines for H.264 * Constrained Baseline and Intra profiles
943 2011-02-02 - lavf 52.95.0
944 * 50196a9 - add a new installed header version.h.
945 * 4efd5cf, dccbd97, 93b78d1 - add several variants of public
946 avio_{put,get}_str* functions. Deprecate corresponding semi-public
949 2011-02-02 - dfd2a00 - lavu 50.37.0 - log.h
952 2011-01-15 - a242ac3 - lavfi 1.74.0 - AVFilterBufferRefAudioProps
953 Rename AVFilterBufferRefAudioProps.samples_nb to nb_samples.
955 2011-01-14 - 7f88a5b - lavf 52.93.0 - av_metadata_copy()
956 Add av_metadata_copy() in avformat.h.
958 2011-01-07 - 81c623f - lavc 52.107.0 - deprecate reordered_opaque
959 Deprecate reordered_opaque in favor of pkt_pts/dts.
961 2011-01-07 - 1919fea - lavc 52.106.0 - pkt_dts
962 Add pkt_dts to AVFrame, this will in the future allow multithreading decoders
965 2011-01-07 - 393cbb9 - lavc 52.105.0 - pkt_pts
966 Add pkt_pts to AVFrame.
968 2011-01-07 - 060ec0a - lavc 52.104.0 - av_get_profile_name()
969 Add av_get_profile_name to libavcodec/avcodec.h.
971 2010-12-27 - 0ccabee - lavfi 1.71.0 - AV_PERM_NEG_LINESIZES
972 Add AV_PERM_NEG_LINESIZES in avfilter.h.
974 2010-12-27 - 9128ae0 - lavf 52.91.0 - av_find_best_stream()
975 Add av_find_best_stream to libavformat/avformat.h.
977 2010-12-27 - 107a7e3 - lavf 52.90.0
978 Add AVFMT_NOSTREAMS flag for formats with no streams,
979 like e.g. text metadata.
981 2010-12-22 - 0328b9e - lavu 50.36.0 - file.h
982 Add functions av_file_map() and av_file_unmap() in file.h.
984 2010-12-19 - 0bc55f5 - lavu 50.35.0 - error.h
985 Add "not found" error codes:
986 AVERROR_DEMUXER_NOT_FOUND
987 AVERROR_MUXER_NOT_FOUND
988 AVERROR_DECODER_NOT_FOUND
989 AVERROR_ENCODER_NOT_FOUND
990 AVERROR_PROTOCOL_NOT_FOUND
991 AVERROR_FILTER_NOT_FOUND
992 AVERROR_BSF_NOT_FOUND
993 AVERROR_STREAM_NOT_FOUND
995 2010-12-09 - c61cdd0 - lavcore 0.16.0 - avcore.h
996 Move AV_NOPTS_VALUE, AV_TIME_BASE, AV_TIME_BASE_Q symbols from
997 avcodec.h to avcore.h.
999 2010-12-04 - 16cfc96 - lavc 52.98.0 - CODEC_CAP_NEG_LINESIZES
1000 Add CODEC_CAP_NEG_LINESIZES codec capability flag in avcodec.h.
1002 2010-12-04 - bb4afa1 - lavu 50.34.0 - av_get_pix_fmt_string()
1003 Deprecate avcodec_pix_fmt_string() in favor of
1004 pixdesc.h/av_get_pix_fmt_string().
1006 2010-12-04 - 4da12e3 - lavcore 0.15.0 - av_image_alloc()
1007 Add av_image_alloc() to libavcore/imgutils.h.
1009 2010-12-02 - 037be76 - lavfi 1.67.0 - avfilter_graph_create_filter()
1010 Add function avfilter_graph_create_filter() in avfiltergraph.h.
1012 2010-11-25 - 4723bc2 - lavfi 1.65.0 - avfilter_get_video_buffer_ref_from_arrays()
1013 Add function avfilter_get_video_buffer_ref_from_arrays() in
1016 2010-11-21 - 176a615 - lavcore 0.14.0 - audioconvert.h
1017 Add a public audio channel API in audioconvert.h, and deprecate the
1018 corresponding functions in libavcodec:
1019 avcodec_get_channel_name()
1020 avcodec_get_channel_layout()
1021 avcodec_get_channel_layout_string()
1022 avcodec_channel_layout_num_channels()
1023 and the CH_* macros defined in libavcodec/avcodec.h.
1025 2010-11-21 - 6bfc268 - lavf 52.85.0 - avformat.h
1026 Add av_append_packet().
1028 2010-11-21 - a08d918 - lavc 52.97.0 - avcodec.h
1029 Add av_grow_packet().
1031 2010-11-17 - 0985e1a - lavcore 0.13.0 - parseutils.h
1032 Add av_parse_color() declared in libavcore/parseutils.h.
1034 2010-11-13 - cb2c971 - lavc 52.95.0 - AVCodecContext
1035 Add AVCodecContext.subtitle_header and AVCodecContext.subtitle_header_size
1038 2010-11-13 - 5aaea02 - lavfi 1.62.0 - avfiltergraph.h
1039 Make avfiltergraph.h public.
1041 2010-11-13 - 4fcbb2a - lavfi 1.61.0 - avfiltergraph.h
1042 Remove declarations from avfiltergraph.h for the functions:
1043 avfilter_graph_check_validity()
1044 avfilter_graph_config_links()
1045 avfilter_graph_config_formats()
1046 which are now internal.
1047 Use avfilter_graph_config() instead.
1049 2010-11-08 - d2af720 - lavu 50.33.0 - eval.h
1050 Deprecate functions:
1051 av_parse_and_eval_expr(),
1055 in favor of the functions:
1056 av_expr_parse_and_eval(),
1061 2010-11-08 - 24de0ed - lavfi 1.59.0 - avfilter_free()
1062 Rename avfilter_destroy() to avfilter_free().
1063 This change breaks libavfilter API/ABI.
1065 2010-11-07 - 1e80a0e - lavfi 1.58.0 - avfiltergraph.h
1066 Remove graphparser.h header, move AVFilterInOut and
1067 avfilter_graph_parse() declarations to libavfilter/avfiltergraph.h.
1069 2010-11-07 - 7313132 - lavfi 1.57.0 - AVFilterInOut
1070 Rename field AVFilterInOut.filter to AVFilterInOut.filter_ctx.
1071 This change breaks libavfilter API.
1073 2010-11-04 - 97dd1e4 - lavfi 1.56.0 - avfilter_graph_free()
1074 Rename avfilter_graph_destroy() to avfilter_graph_free().
1075 This change breaks libavfilter API/ABI.
1077 2010-11-04 - e15aeea - lavfi 1.55.0 - avfilter_graph_alloc()
1078 Add avfilter_graph_alloc() to libavfilter/avfiltergraph.h.
1080 2010-11-02 - 6f84cd1 - lavcore 0.12.0 - av_get_bits_per_sample_fmt()
1081 Add av_get_bits_per_sample_fmt() to libavcore/samplefmt.h and
1082 deprecate av_get_bits_per_sample_format().
1084 2010-11-02 - d63e456 - lavcore 0.11.0 - samplefmt.h
1085 Add sample format functions in libavcore/samplefmt.h:
1086 av_get_sample_fmt_name(),
1087 av_get_sample_fmt(),
1088 av_get_sample_fmt_string(),
1089 and deprecate the corresponding libavcodec/audioconvert.h functions:
1090 avcodec_get_sample_fmt_name(),
1091 avcodec_get_sample_fmt(),
1092 avcodec_sample_fmt_string().
1094 2010-11-02 - 262d1c5 - lavcore 0.10.0 - samplefmt.h
1095 Define enum AVSampleFormat in libavcore/samplefmt.h, deprecate enum
1098 2010-10-16 - 2a24df9 - lavfi 1.52.0 - avfilter_graph_config()
1099 Add the function avfilter_graph_config() in avfiltergraph.h.
1101 2010-10-15 - 03700d3 - lavf 52.83.0 - metadata API
1102 Change demuxers to export metadata in generic format and
1103 muxers to accept generic format. Deprecate the public
1106 2010-10-10 - 867ae7a - lavfi 1.49.0 - AVFilterLink.time_base
1107 Add time_base field to AVFilterLink.
1109 2010-09-27 - c85eef4 - lavu 50.31.0 - av_set_options_string()
1110 Move av_set_options_string() from libavfilter/parseutils.h to
1113 2010-09-27 - acc0490 - lavfi 1.47.0 - AVFilterLink
1114 Make the AVFilterLink fields srcpad and dstpad store the pointers to
1115 the source and destination pads, rather than their indexes.
1117 2010-09-27 - 372e288 - lavu 50.30.0 - av_get_token()
1118 Move av_get_token() from libavfilter/parseutils.h to
1119 libavutil/avstring.h.
1121 2010-09-26 - 635d4ae - lsws 0.12.0 - swscale.h
1122 Add the functions sws_alloc_context() and sws_init_context().
1124 2010-09-26 - 6ed0404 - lavu 50.29.0 - opt.h
1125 Move libavcodec/opt.h to libavutil/opt.h.
1127 2010-09-24 - 1c1c80f - lavu 50.28.0 - av_log_set_flags()
1128 Default of av_log() changed due to many problems to the old no repeat
1129 detection. Read the docs of AV_LOG_SKIP_REPEATED in log.h before
1130 enabling it for your app!.
1132 2010-09-24 - f66eb58 - lavc 52.90.0 - av_opt_show2()
1133 Deprecate av_opt_show() in favor or av_opt_show2().
1135 2010-09-14 - bc6f0af - lavu 50.27.0 - av_popcount()
1136 Add av_popcount() to libavutil/common.h.
1138 2010-09-08 - c6c98d0 - lavu 50.26.0 - av_get_cpu_flags()
1139 Add av_get_cpu_flags().
1141 2010-09-07 - 34017fd - lavcore 0.9.0 - av_image_copy()
1142 Add av_image_copy().
1144 2010-09-07 - 9686abb - lavcore 0.8.0 - av_image_copy_plane()
1145 Add av_image_copy_plane().
1147 2010-09-07 - 9b7269e - lavcore 0.7.0 - imgutils.h
1148 Adopt hierarchical scheme for the imgutils.h function names,
1149 deprecate the old names.
1151 2010-09-04 - 7160bb7 - lavu 50.25.0 - AV_CPU_FLAG_*
1152 Deprecate the FF_MM_* flags defined in libavcodec/avcodec.h in favor
1153 of the AV_CPU_FLAG_* flags defined in libavutil/cpu.h.
1155 2010-08-26 - 5da19b5 - lavc 52.87.0 - avcodec_get_channel_layout()
1156 Add avcodec_get_channel_layout() in audioconvert.h.
1158 2010-08-20 - e344336 - lavcore 0.6.0 - av_fill_image_max_pixsteps()
1159 Rename av_fill_image_max_pixstep() to av_fill_image_max_pixsteps().
1161 2010-08-18 - a6ddf8b - lavcore 0.5.0 - av_fill_image_max_pixstep()
1162 Add av_fill_image_max_pixstep() in imgutils.h.
1164 2010-08-17 - 4f2d2e4 - lavu 50.24.0 - AV_NE()
1165 Add the AV_NE macro.
1167 2010-08-17 - ad2c950 - lavfi 1.36.0 - audio framework
1168 Implement AVFilterBufferRefAudioProps struct for audio properties,
1169 get_audio_buffer(), filter_samples() functions and related changes.
1171 2010-08-12 - 81c1eca - lavcore 0.4.0 - av_get_image_linesize()
1172 Add av_get_image_linesize() in imgutils.h.
1174 2010-08-11 - c1db7bf - lavfi 1.34.0 - AVFilterBufferRef
1175 Resize data and linesize arrays in AVFilterBufferRef to 8.
1177 This change breaks libavfilter API/ABI.
1179 2010-08-11 - 9f08d80 - lavc 52.85.0 - av_picture_data_copy()
1180 Add av_picture_data_copy in avcodec.h.
1182 2010-08-11 - 84c0386 - lavfi 1.33.0 - avfilter_open()
1183 Change avfilter_open() signature:
1184 AVFilterContext *avfilter_open(AVFilter *filter, const char *inst_name) ->
1185 int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);
1187 This change breaks libavfilter API/ABI.
1189 2010-08-11 - cc80caf - lavfi 1.32.0 - AVFilterBufferRef
1190 Add a type field to AVFilterBufferRef, and move video specific
1191 properties to AVFilterBufferRefVideoProps.
1193 This change breaks libavfilter API/ABI.
1195 2010-08-07 - 5d4890d - lavfi 1.31.0 - AVFilterLink
1196 Rename AVFilterLink fields:
1197 AVFilterLink.srcpic -> AVFilterLink.src_buf
1198 AVFilterLink.cur_pic -> AVFilterLink.cur_buf
1199 AVFilterLink.outpic -> AVFilterLink.out_buf
1201 2010-08-07 - 7fce481 - lavfi 1.30.0
1202 Rename functions and fields:
1203 avfilter_(un)ref_pic -> avfilter_(un)ref_buffer
1204 avfilter_copy_picref_props -> avfilter_copy_buffer_ref_props
1205 AVFilterBufferRef.pic -> AVFilterBufferRef.buffer
1207 2010-08-07 - ecc8dad - lavfi 1.29.0 - AVFilterBufferRef
1208 Rename AVFilterPicRef to AVFilterBufferRef.
1210 2010-08-07 - d54e094 - lavfi 1.28.0 - AVFilterBuffer
1211 Move format field from AVFilterBuffer to AVFilterPicRef.
1213 2010-08-06 - bf176f5 - lavcore 0.3.0 - av_check_image_size()
1214 Deprecate avcodec_check_dimensions() in favor of the function
1215 av_check_image_size() defined in libavcore/imgutils.h.
1217 2010-07-30 - 56b5e9d - lavfi 1.27.0 - AVFilterBuffer
1218 Increase size of the arrays AVFilterBuffer.data and
1219 AVFilterBuffer.linesize from 4 to 8.
1221 This change breaks libavfilter ABI.
1223 2010-07-29 - e7bd48a - lavcore 0.2.0 - imgutils.h
1224 Add functions av_fill_image_linesizes() and
1225 av_fill_image_pointers(), declared in libavcore/imgutils.h.
1227 2010-07-27 - 126b638 - lavcore 0.1.0 - parseutils.h
1228 Deprecate av_parse_video_frame_size() and av_parse_video_frame_rate()
1229 defined in libavcodec in favor of the newly added functions
1230 av_parse_video_size() and av_parse_video_rate() declared in
1231 libavcore/parseutils.h.
1233 2010-07-23 - 4485247 - lavu 50.23.0 - mathematics.h
1234 Add the M_PHI constant definition.
1236 2010-07-22 - bdab614 - lavfi 1.26.0 - media format generalization
1237 Add a type field to AVFilterLink.
1239 Change the field types:
1240 enum PixelFormat format -> int format in AVFilterBuffer
1241 enum PixelFormat *formats -> int *formats in AVFilterFormats
1242 enum PixelFormat *format -> int format in AVFilterLink
1244 Change the function signatures:
1245 AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts); ->
1246 AVFilterFormats *avfilter_make_format_list(const int *fmts);
1248 int avfilter_add_colorspace(AVFilterFormats **avff, enum PixelFormat pix_fmt); ->
1249 int avfilter_add_format (AVFilterFormats **avff, int fmt);
1251 AVFilterFormats *avfilter_all_colorspaces(void); ->
1252 AVFilterFormats *avfilter_all_formats (enum AVMediaType type);
1254 This change breaks libavfilter API/ABI.
1256 2010-07-21 - aac6ca6 - lavcore 0.0.0
1259 2010-07-17 - b5c582f - lavfi 1.25.0 - AVFilterBuffer
1260 Remove w and h fields from AVFilterBuffer.
1262 2010-07-17 - f0d77b2 - lavfi 1.24.0 - AVFilterBuffer
1263 Rename AVFilterPic to AVFilterBuffer.
1265 2010-07-17 - 57fe80f - lavf 52.74.0 - url_fskip()
1266 Make url_fskip() return an int error code instead of void.
1268 2010-07-11 - 23940f1 - lavc 52.83.0
1269 Add AVCodecContext.lpc_type and AVCodecContext.lpc_passes fields.
1271 Deprecate AVCodecContext.use_lpc.
1273 2010-07-11 - e1d7c88 - lavc 52.82.0 - avsubtitle_free()
1274 Add a function for free the contents of a AVSubtitle generated by
1275 avcodec_decode_subtitle.
1277 2010-07-11 - b91d08f - lavu 50.22.0 - bswap.h and intreadwrite.h
1278 Make the bswap.h and intreadwrite.h API public.
1280 2010-07-08 - ce1cd1c - lavu 50.21.0 - pixdesc.h
1281 Rename read/write_line() to av_read/write_image_line().
1283 2010-07-07 - 4d508e4 - lavfi 1.21.0 - avfilter_copy_picref_props()
1284 Add avfilter_copy_picref_props().
1286 2010-07-03 - 2d525ef - lavc 52.79.0
1287 Add FF_COMPLIANCE_UNOFFICIAL and change all instances of
1288 FF_COMPLIANCE_INOFFICIAL to use FF_COMPLIANCE_UNOFFICIAL.
1290 2010-07-02 - 89eec74 - lavu 50.20.0 - lfg.h
1291 Export av_lfg_init(), av_lfg_get(), av_mlfg_get(), and av_bmg_get() through
1294 2010-06-28 - a52e2c3 - lavfi 1.20.1 - av_parse_color()
1295 Extend av_parse_color() syntax, make it accept an alpha value specifier and
1296 set the alpha value to 255 by default.
1298 2010-06-22 - 735cf6b - lavf 52.71.0 - URLProtocol.priv_data_size, priv_data_class
1299 Add priv_data_size and priv_data_class to URLProtocol.
1301 2010-06-22 - ffbb289 - lavf 52.70.0 - url_alloc(), url_connect()
1302 Add url_alloc() and url_connect().
1304 2010-06-22 - 9b07a2d - lavf 52.69.0 - av_register_protocol2()
1305 Add av_register_protocol2(), deprecating av_register_protocol().
1307 2010-06-09 - 65db058 - lavu 50.19.0 - av_compare_mod()
1308 Add av_compare_mod() to libavutil/mathematics.h.
1310 2010-06-05 - 0b99215 - lavu 50.18.0 - eval API
1311 Make the eval API public.
1313 2010-06-04 - 31878fc - lavu 50.17.0 - AV_BASE64_SIZE
1314 Add AV_BASE64_SIZE() macro.
1316 2010-06-02 - 7e566bb - lavc 52.73.0 - av_get_codec_tag_string()
1317 Add av_get_codec_tag_string().
1319 2010-06-01 - 2b99142 - lsws 0.11.0 - convertPalette API
1320 Add sws_convertPalette8ToPacked32() and sws_convertPalette8ToPacked24().
1322 2010-05-26 - 93ebfee - lavc 52.72.0 - CODEC_CAP_EXPERIMENTAL
1323 Add CODEC_CAP_EXPERIMENTAL flag.
1324 NOTE: this was backported to 0.6
1326 2010-05-23 - 9977863 - lavu 50.16.0 - av_get_random_seed()
1327 Add av_get_random_seed().
1329 2010-05-18 - 796ac23 - lavf 52.63.0 - AVFMT_FLAG_RTP_HINT
1330 Add AVFMT_FLAG_RTP_HINT as possible value for AVFormatContext.flags.
1331 NOTE: this was backported to 0.6
1333 2010-05-09 - b6bc205 - lavfi 1.20.0 - AVFilterPicRef
1334 Add interlaced and top_field_first fields to AVFilterPicRef.
1336 ------------------------------8<-------------------------------------
1337 0.6 branch was cut here
1338 ----------------------------->8--------------------------------------
1340 2010-05-01 - 8e2ee18 - lavf 52.62.0 - probe function
1341 Add av_probe_input_format2 to API, it allows ignoring probe
1342 results below given score and returns the actual probe score.
1344 2010-04-01 - 3dd6180 - lavf 52.61.0 - metadata API
1345 Add a flag for av_metadata_set2() to disable overwriting of
1348 2010-04-01 - 0fb49b5 - lavc 52.66.0
1349 Add avcodec_get_edge_width().
1351 2010-03-31 - d103218 - lavc 52.65.0
1352 Add avcodec_copy_context().
1354 2010-03-31 - 1a70d12 - lavf 52.60.0 - av_match_ext()
1355 Make av_match_ext() public.
1357 2010-03-31 - 1149150 - lavu 50.14.0 - AVMediaType
1358 Move AVMediaType enum from libavcodec to libavutil.
1360 2010-03-31 - 72415b2 - lavc 52.64.0 - AVMediaType
1361 Define AVMediaType enum, and use it instead of enum CodecType, which
1362 is deprecated and will be dropped at the next major bump.
1364 2010-03-25 - 8795823 - lavu 50.13.0 - av_strerror()
1365 Implement av_strerror().
1367 2010-03-23 - e1484eb - lavc 52.60.0 - av_dct_init()
1368 Support DCT-I and DST-I.
1370 2010-03-15 - b8819c8 - lavf 52.56.0 - AVFormatContext.start_time_realtime
1371 Add AVFormatContext.start_time_realtime field.
1373 2010-03-13 - 5bb5c1d - lavfi 1.18.0 - AVFilterPicRef.pos
1374 Add AVFilterPicRef.pos field.
1376 2010-03-13 - 60c144f - lavu 50.12.0 - error.h
1377 Move error code definitions from libavcodec/avcodec.h to
1378 the new public header libavutil/error.h.
1380 2010-03-07 - c709483 - lavc 52.56.0 - avfft.h
1381 Add public FFT interface.
1383 2010-03-06 - ac6ef86 - lavu 50.11.0 - av_stristr()
1386 2010-03-03 - 4b83fc0 - lavu 50.10.0 - av_tree_enumerate()
1387 Add av_tree_enumerate().
1389 2010-02-07 - b687c1a - lavu 50.9.0 - av_compare_ts()
1390 Add av_compare_ts().
1392 2010-02-05 - 3f3dc76 - lsws 0.10.0 - sws_getCoefficients()
1393 Add sws_getCoefficients().
1395 2010-02-01 - ca76a11 - lavf 52.50.0 - metadata API
1396 Add a list of generic tag names, change 'author' -> 'artist',
1399 2010-01-30 - 80a07f6 - lavu 50.8.0 - av_get_pix_fmt()
1400 Add av_get_pix_fmt().
1402 2010-01-21 - 01cc47d - lsws 0.9.0 - sws_scale()
1403 Change constness attributes of sws_scale() parameters.
1405 2010-01-10 - 3fb8e77 - lavfi 1.15.0 - avfilter_graph_config_links()
1406 Add a log_ctx parameter to avfilter_graph_config_links().
1408 2010-01-07 - 8e9767f - lsws 0.8.0 - sws_isSupported{In,Out}put()
1409 Add sws_isSupportedInput() and sws_isSupportedOutput() functions.
1411 2010-01-06 - c1d662f - lavfi 1.14.0 - avfilter_add_colorspace()
1412 Change the avfilter_add_colorspace() signature, make it accept an
1413 (AVFilterFormats **) rather than an (AVFilterFormats *) as before.
1415 2010-01-03 - 4fd1f18 - lavfi 1.13.0 - avfilter_add_colorspace()
1416 Add avfilter_add_colorspace().
1418 2010-01-02 - 8eb631f - lavf 52.46.0 - av_match_ext()
1419 Add av_match_ext(), it should be used in place of match_ext().
1421 2010-01-01 - a1f547b - lavf 52.45.0 - av_guess_format()
1422 Add av_guess_format(), it should be used in place of guess_format().
1424 2009-12-13 - a181981 - lavf 52.43.0 - metadata API
1425 Add av_metadata_set2(), AV_METADATA_DONT_STRDUP_KEY and
1426 AV_METADATA_DONT_STRDUP_VAL.
1428 2009-12-13 - 277c733 - lavu 50.7.0 - avstring.h API
1431 2009-12-13 - 02b398e - lavc 52.42.0 - AVStream
1434 2009-12-12 - 3ba69a1 - lavu 50.6.0 - av_bmg_next()
1435 Introduce the av_bmg_next() function.
1437 2009-12-05 - a13a543 - lavfi 1.12.0 - avfilter_draw_slice()
1438 Add a slice_dir parameter to avfilter_draw_slice().
1440 2009-11-26 - 4cc3f6a - lavfi 1.11.0 - AVFilter
1441 Remove the next field from AVFilter, this is not anymore required.
1443 2009-11-25 - 1433c4a - lavfi 1.10.0 - avfilter_next()
1444 Introduce the avfilter_next() function.
1446 2009-11-25 - 86a60fa - lavfi 1.9.0 - avfilter_register()
1447 Change the signature of avfilter_register() to make it return an
1448 int. This is required since now the registration operation may fail.
1450 2009-11-25 - 74a0059 - lavu 50.5.0 - pixdesc.h API
1451 Make the pixdesc.h API public.
1453 2009-10-27 - 243110f - lavfi 1.5.0 - AVFilter.next
1454 Add a next field to AVFilter, this is used for simplifying the
1455 registration and management of the registered filters.
1457 2009-10-23 - cccd292 - lavfi 1.4.1 - AVFilter.description
1458 Add a description field to AVFilter.
1460 2009-10-19 - 6b5dc05 - lavfi 1.3.0 - avfilter_make_format_list()
1461 Change the interface of avfilter_make_format_list() from
1462 avfilter_make_format_list(int n, ...) to
1463 avfilter_make_format_list(enum PixelFormat *pix_fmts).
1465 2009-10-18 - 0eb4ff9 - lavfi 1.0.0 - avfilter_get_video_buffer()
1466 Make avfilter_get_video_buffer() recursive and add the w and h
1469 2009-10-07 - 46c40e4 - lavfi 0.5.1 - AVFilterPic
1470 Add w and h fields to AVFilterPic.
1472 2009-06-22 - 92400be - lavf 52.34.1 - AVFormatContext.packet_size
1473 This is now an unsigned int instead of a signed int.
1475 2009-06-19 - a4276ba - lavc 52.32.0 - AVSubtitle.pts
1476 Add a pts field to AVSubtitle which gives the subtitle packet pts
1477 in AV_TIME_BASE. Some subtitle de-/encoders (e.g. XSUB) will
1478 not work right without this.
1480 2009-06-03 - 8f3f2e0 - lavc 52.30.2 - AV_PKT_FLAG_KEY
1481 PKT_FLAG_KEY has been deprecated and will be dropped at the next
1482 major version. Use AV_PKT_FLAG_KEY instead.
1484 2009-06-01 - f988ce6 - lavc 52.30.0 - av_lockmgr_register()
1485 av_lockmgr_register() can be used to register a callback function
1486 that lavc (and in the future, libraries that depend on lavc) can use
1487 to implement mutexes. The application should provide a callback function
1488 that implements the AV_LOCK_* operations described in avcodec.h.
1489 When the lock manager is registered, FFmpeg is guaranteed to behave
1490 correctly in a multi-threaded application.
1492 2009-04-30 - ce1d9c8 - lavc 52.28.0 - av_free_packet()
1493 av_free_packet() is no longer an inline function. It is now exported.
1495 2009-04-11 - 80d403f - lavc 52.25.0 - deprecate av_destruct_packet_nofree()
1496 Please use NULL instead. This has been supported since r16506
1497 (lavf > 52.23.1, lavc > 52.10.0).
1499 2009-04-07 - 7a00bba - lavc 52.23.0 - avcodec_decode_video/audio/subtitle
1500 The old decoding functions are deprecated, all new code should use the
1501 new functions avcodec_decode_video2(), avcodec_decode_audio3() and
1502 avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt
1503 argument instead of a const uint8_t *buf / int buf_size pair.
1505 2009-04-03 - 7b09db3 - lavu 50.3.0 - av_fifo_space()
1506 Introduce the av_fifo_space() function.
1508 2009-04-02 - fabd246 - lavc 52.23.0 - AVPacket
1509 Move AVPacket declaration from libavformat/avformat.h to
1510 libavcodec/avcodec.h.
1512 2009-03-22 - 6e08ca9 - lavu 50.2.0 - RGB32 pixel formats
1513 Convert the pixel formats PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR,
1514 PIX_FMT_BGRA, which were defined as macros, into enum PixelFormat values.
1515 Conversely PIX_FMT_RGB32, PIX_FMT_RGB32_1, PIX_FMT_BGR32 and
1516 PIX_FMT_BGR32_1 are now macros.
1517 avcodec_get_pix_fmt() now recognizes the "rgb32" and "bgr32" aliases.
1518 Re-sort the enum PixelFormat list accordingly.
1519 This change breaks API/ABI backward compatibility.
1521 2009-03-22 - f82674e - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants
1522 Add the enum PixelFormat values:
1523 PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,
1524 PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.
1526 2009-03-21 - ee6624e - lavu 50.0.0 - av_random*
1527 The Mersenne Twister PRNG implemented through the av_random* functions
1528 was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions
1531 2009-03-08 - 41dd680 - lavu 50.0.0 - AVFifoBuffer
1532 av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped
1533 and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write
1534 and av_fifo_realloc2.
1535 In addition, the order of the function arguments of av_fifo_generic_read
1536 was changed to match av_fifo_generic_write.
1537 The AVFifoBuffer/struct AVFifoBuffer may only be used in an opaque way by
1538 applications, they may not use sizeof() or directly access members.
1540 2009-03-01 - ec26457 - lavf 52.31.0 - Generic metadata API
1541 Introduce a new metadata API (see av_metadata_get() and friends).
1542 The old API is now deprecated and should not be used anymore. This especially
1543 includes the following structure fields:
1544 - AVFormatContext.title
1545 - AVFormatContext.author
1546 - AVFormatContext.copyright
1547 - AVFormatContext.comment
1548 - AVFormatContext.album
1549 - AVFormatContext.year
1550 - AVFormatContext.track
1551 - AVFormatContext.genre
1554 - AVProgram.provider_name