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