1 Never assume the API of libav* to be stable unless at least 1 month has passed
2 since the last major version increase or the API was added.
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 libpostproc: 2011-04-18
11 libswresample: 2011-09-19
12 libswscale: 2011-06-20
16 API changes, most recent first:
18 2014-04-xx - xxxxxxx - lavu 53.10.0 - replaygain.h
19 Full scale for peak values is now 100000 (instead of UINT32_MAX) and values
22 2014-04-xx - xxxxxxx - lavu 53.09.0 - log.h
23 Add AV_LOG(c) macro to have 256 color debug messages.
25 2014-04-xx - xxxxxxx - lavu 52.72.100 - opt.h
26 Add AV_OPT_MULTI_COMPONENT_RANGE define to allow return
27 multi-component option ranges.
29 2014-03-xx - xxxxxxx - lavu 52.70.100 - mem.h
30 Add av_dynarray_add_nofree() function.
32 2014-02-xx - xxxxxxx - lavu 53.08.0 - frame.h
33 Add av_frame_remove_side_data() for removing a single side data
34 instance from a frame.
36 2014-02-xx - xxxxxxx - lavu 53.07.0 - frame.h, replaygain.h
37 Add AV_FRAME_DATA_REPLAYGAIN for exporting replaygain tags.
38 Add a new header replaygain.h with the AVReplayGain struct.
40 2014-02-xx - xxxxxxx - lavc 55.36.0 - avcodec.h
41 Add AV_PKT_DATA_REPLAYGAIN for exporting replaygain tags.
43 2014-02-xx - xxxxxxx - lavf 55.13.0 - avformat.h
44 Add AVStream.side_data and AVStream.nb_side_data for exporting stream-global
45 side data (e.g. replaygain tags, video rotation)
47 2014-02-xx - xxxxxxx - lavc 55.35.0 - avcodec.h
48 Give the name AVPacketSideData to the previously anonymous struct used for
51 2014-03-18 - 37c07d4 - lsws 2.5.102
52 Make gray16 full-scale.
54 2014-xx-xx - xxxxxxx - lavu 53.06.0 - pixfmt.h
55 Add RGBA64_LIBAV pixel format and variants for compatibility
57 2014-03-11 - 3f3229c - lavf 55.34.101 - avformat.h
58 Set AVFormatContext.start_time_realtime when demuxing.
60 2014-xx-xx - xxxxxx - lavd 55.11.100 - avdevice.h
61 Add av_input_audio_device_next().
62 Add av_input_video_device_next().
63 Add av_output_audio_device_next().
64 Add av_output_video_device_next().
66 2014-02-24 - fff5262 / 1155fd0 - lavu 52.66.100 / 53.5.0 - frame.h
67 Add av_frame_copy() for copying the frame data.
69 2014-02-24 - a66be60 - lswr 0.18.100 - swresample.h
70 Add swr_is_initialized() for checking whether a resample context is initialized.
72 2014-02-22 - 5367c0b / 7e86c27 - lavr 1.2.0 - avresample.h
73 Add avresample_is_open() for checking whether a resample context is open.
75 2014-02-19 - 6a24d77 / c3ecd96 - lavu 52.65.100 / 53.4.0 - opt.h
76 Add AV_OPT_FLAG_EXPORT and AV_OPT_FLAG_READONLY to mark options meant (only)
79 2014-02-19 - f4c8d00 / 6bb8720 - lavu 52.64.101 / 53.3.1 - opt.h
80 Deprecate unused AV_OPT_FLAG_METADATA.
82 2014-02-xx - xxxxxxx - lavd 55.10.100 - avdevice.h
83 Add avdevice_list_devices() and avdevice_free_list_devices()
85 2014-02-16 - db3c970 - lavf 55.33.100 - avio.h
86 Add avio_find_protocol_name() to find out the name of the protocol that would
87 be selected for a given URL.
89 2014-02-15 - a2bc6c1 / c98f316 - lavu 52.64.100 / 53.3.0 - frame.h
90 Add AV_FRAME_DATA_DOWNMIX_INFO value to the AVFrameSideDataType enum and
91 downmix_info.h API, which identify downmix-related metadata.
93 2014-02-11 - 1b05ac2 - lavf 55.32.100 - avformat.h
94 Add av_write_uncoded_frame() and av_interleaved_write_uncoded_frame().
96 2014-02-04 - 3adb5f8 / d9ae103 - lavf 55.30.100 / 55.11.0 - avformat.h
97 Add AVFormatContext.max_interleave_delta for controlling amount of buffering
100 2014-02-02 - 5871ee5 - lavf 55.29.100 - avformat.h
101 Add output_ts_offset muxing option to AVFormatContext.
103 2014-01-27 - 102bd64 - lavd 55.7.100 - avdevice.h
104 lavf 55.28.100 - avformat.h
105 Add avdevice_dev_to_app_control_message() function.
107 2014-01-27 - 7151411 - lavd 55.6.100 - avdevice.h
108 lavf 55.27.100 - avformat.h
109 Add avdevice_app_to_dev_control_message() function.
111 2014-01-24 - 86bee79 - lavf 55.26.100 - avformat.h
112 Add AVFormatContext option metadata_header_padding to allow control over the
113 amount of padding added.
115 2014-01-20 - eef74b2 / 93c553c - lavc 55.48.102 / 55.32.1 - avcodec.h
116 Edges are not required anymore on video buffers allocated by get_buffer2()
117 (i.e. as if the CODEC_FLAG_EMU_EDGE flag was always on). Deprecate
118 CODEC_FLAG_EMU_EDGE and avcodec_get_edge_width().
120 2014-01-19 - 1a193c4 - lavf 55.25.100 - avformat.h
121 Add avformat_get_mov_video_tags() and avformat_get_mov_audio_tags().
123 2014-01-19 - xxxxxxx - lavu 52.63.100 - rational.h
124 Add av_make_q() function.
126 2014-01-05 - 4cf4da9 / 5b4797a - lavu 52.62.100 / 53.2.0 - frame.h
127 Add AV_FRAME_DATA_MATRIXENCODING value to the AVFrameSideDataType enum, which
128 identifies AVMatrixEncoding data.
130 2014-01-05 - 751385f / 5c437fb - lavu 52.61.100 / 53.1.0 - channel_layout.h
131 Add values for various Dolby flags to the AVMatrixEncoding enum.
133 2014-01-04 - b317f94 - lavu 52.60.100 - mathematics.h
134 Add av_add_stable() function.
136 2013-12-22 - 911676c - lavu 52.59.100 - avstring.h
137 Add av_strnlen() function.
139 2013-12-09 - 64f73ac - lavu 52.57.100 - opencl.h
140 Add av_opencl_benchmark() function.
142 2013-11-30 - 82b2e9c - lavu 52.56.100 - ffversion.h
143 Moves version.h to libavutil/ffversion.h.
144 Install ffversion.h and make it public.
146 2013-12-11 - 29c83d2 / b9fb59d,409a143 / 9431356,44967ab / d7b3ee9 - lavc 55.45.101 / 55.28.1 - avcodec.h
147 av_frame_alloc(), av_frame_unref() and av_frame_free() now can and should be
148 used instead of avcodec_alloc_frame(), avcodec_get_frame_defaults() and
149 avcodec_free_frame() respectively. The latter three functions are deprecated.
151 2013-12-09 - 7a60348 / 7e244c6- - lavu 52.58.100 / 52.20.0 - frame.h
152 Add AV_FRAME_DATA_STEREO3D value to the AVFrameSideDataType enum and
153 stereo3d.h API, that identify codec-independent stereo3d information.
155 2013-11-26 - 625b290 / 1eaac1d- - lavu 52.55.100 / 52.19.0 - frame.h
156 Add AV_FRAME_DATA_A53_CC value to the AVFrameSideDataType enum, which
157 identifies ATSC A53 Part 4 Closed Captions data.
159 2013-11-22 - 6859065 - lavu 52.54.100 - avstring.h
160 Add av_utf8_decode() function.
162 2013-11-22 - fb7d70c - lavc 55.44.100 - avcodec.h
165 2013-11-20 - c28b61c - lavc 55.44.100 - avcodec.h
166 Add av_packet_{un,}pack_dictionary()
167 Add AV_PKT_METADATA_UPDATE side data type, used to transmit key/value
168 strings between a stream and the application.
170 2013-11-14 - 7c888ae / cce3e0a - lavu 52.53.100 / 52.18.0 - mem.h
171 Move av_fast_malloc() and av_fast_realloc() for libavcodec to libavutil.
173 2013-11-14 - b71e4d8 / 8941971 - lavc 55.43.100 / 55.27.0 - avcodec.h
174 Deprecate AVCodecContext.error_rate, it is replaced by the 'error_rate'
175 private option of the mpegvideo encoder family.
177 2013-11-14 - 31c09b7 / 728c465 - lavc 55.42.100 / 55.26.0 - vdpau.h
178 Add av_vdpau_get_profile().
179 Add av_vdpau_alloc_context(). This function must from now on be
180 used for allocating AVVDPAUContext.
182 2013-11-04 - be41f21 / cd8f772 - lavc 55.41.100 / 55.25.0 - avcodec.h
183 lavu 52.51.100 - frame.h
184 Add ITU-R BT.2020 and other not yet included values to color primaries,
185 transfer characteristics and colorspaces.
187 2013-11-04 - 85cabf1 - lavu 52.50.100 - avutil.h
190 2013-10-31 - 78265fc / 28096e0 - lavu 52.49.100 / 52.17.0 - frame.h
191 Add AVFrame.flags and AV_FRAME_FLAG_CORRUPT.
193 2013-10-27 - dbe6f9f - lavc 55.39.100 - avcodec.h
194 Add CODEC_CAP_DELAY support to avcodec_decode_subtitle2.
196 2013-10-27 - d61617a - lavu 52.48.100 - parseutils.h
197 Add av_get_known_color_name().
199 2013-10-17 - 8696e51 - lavu 52.47.100 - opt.h
200 Add AV_OPT_TYPE_CHANNEL_LAYOUT and channel layout option handlers
201 av_opt_get_channel_layout() and av_opt_set_channel_layout().
203 2013-10-06 - ccf96f8 -libswscale 2.5.101 - options.c
204 Change default scaler to bicubic
206 2013-10-03 - e57dba0 - lavc 55.34.100 - avcodec.h
207 Add av_codec_get_max_lowres()
209 2013-10-02 - 5082fcc - lavf 55.19.100 - avformat.h
210 Add audio/video/subtitle AVCodec fields to AVFormatContext to force specific
213 2013-09-28 - 7381d31 / 0767bfd - lavfi 3.88.100 / 3.11.0 - avfilter.h
214 Add AVFilterGraph.execute and AVFilterGraph.opaque for custom slice threading
217 2013-09-21 - 85f8a3c / e208e6d - lavu 52.46.100 / 52.16.0 - pixfmt.h
218 Add interleaved 4:2:2 8/10-bit formats AV_PIX_FMT_NV16 and
221 2013-09-16 - c74c3fb / 3feb3d6 - lavu 52.44.100 / 52.15.0 - mem.h
224 2013-09-04 - 3e1f507 - lavc 55.31.101 - avcodec.h
225 avcodec_close() argument can be NULL.
227 2013-09-04 - 36cd017 - lavf 55.16.101 - avformat.h
228 avformat_close_input() argument can be NULL and point on NULL.
230 2013-08-29 - e31db62 - lavf 55.15.100 - avformat.h
231 Add av_format_get_probe_score().
233 2013-08-15 - 1e0e193 - lsws 2.5.100 -
234 Add a sws_dither AVOption, allowing to set the dither algorithm used
236 2013-08-11 - d404fe35 - lavc 55.27.100 - vdpau.h
237 Add a render2 alternative to the render callback function.
239 2013-08-11 - af05edc - lavc 55.26.100 - vdpau.h
240 Add allocation function for AVVDPAUContext, allowing
241 to extend it in the future without breaking ABI/API.
243 2013-08-10 - 67a580f / 5a9a9d4 - lavc 55.25.100 / 55.16.0 - avcodec.h
244 Extend AVPacket API with av_packet_unref, av_packet_ref,
245 av_packet_move_ref, av_packet_copy_props, av_packet_free_side_data.
247 2013-08-05 - 9547e3e / f824535 - lavc 55.22.100 / 55.13.0 - avcodec.h
248 Deprecate the bitstream-related members from struct AVVDPAUContext.
249 The bistream buffers no longer need to be explicitly freed.
251 2013-08-05 - 3b805dc / 549294f - lavc 55.21.100 / 55.12.0 - avcodec.h
252 Deprecate the CODEC_CAP_HWACCEL_VDPAU codec capability. Use CODEC_CAP_HWACCEL
253 and select the AV_PIX_FMT_VDPAU format with get_format() instead.
255 2013-08-05 - 4ee0984 / a0ad5d0 - lavu 52.41.100 / 52.14.0 - pixfmt.h
256 Deprecate AV_PIX_FMT_VDPAU_*. Use AV_PIX_FMT_VDPAU instead.
258 2013-08-02 - 82fdfe8 / a8b1927 - lavc 55.20.100 / 55.11.0 - avcodec.h
259 Add output_picture_number to AVCodecParserContext.
261 2013-07-23 - abc8110 - lavc 55.19.100 - avcodec.h
262 Add avcodec_chroma_pos_to_enum()
263 Add avcodec_enum_to_chroma_pos()
265 2013-07-03 - 838bd73 - lavfi 3.78.100 - avfilter.h
266 Deprecate avfilter_graph_parse() in favor of the equivalent
267 avfilter_graph_parse_ptr().
269 2013-06-24 - af5f9c0 / 95d5246 - lavc 55.17.100 / 55.10.0 - avcodec.h
270 Add MPEG-2 AAC profiles
272 2013-06-25 - af5f9c0 / 95d5246 - lavf 55.10.100 - avformat.h
273 Add AV_DISPOSITION_* flags to indicate text track kind.
275 2013-06-15 - 99b8cd0 - lavu 52.36.100
282 2013-06-04 - 30b491f / fc962d4 - lavu 52.35.100 / 52.13.0 - mem.h
283 Add av_realloc_array and av_reallocp_array
285 2013-05-30 - 682b227 - lavu 52.35.100
292 2013-05-24 - 8d4e969 / 129bb23 - lavfi 3.10.0 / 3.70.100 - avfilter.h
293 Add support for slice multithreading to lavfi. Filters supporting threading
294 are marked with AVFILTER_FLAG_SLICE_THREADS.
295 New fields AVFilterContext.thread_type, AVFilterGraph.thread_type and
296 AVFilterGraph.nb_threads (accessible directly or through AVOptions) may be
297 used to configure multithreading.
299 2013-05-24 - fe40a9f / 2a6eaea - lavu 52.12.0 / 52.34.100 - cpu.h
300 Add av_cpu_count() function for getting the number of logical CPUs.
302 2013-05-24 - 0c25c39 / b493847 - lavc 55.7.0 / 55.12.100 - avcodec.h
303 Add picture_structure to AVCodecParserContext.
305 2013-05-17 - 3a751ea - lavu 52.33.100 - opt.h
306 Add AV_OPT_TYPE_COLOR value to AVOptionType enum.
308 2013-05-13 - e398416 - lavu 52.31.100 - mem.h
309 Add av_dynarray2_add().
311 2013-05-12 - 1776177 - lavfi 3.65.100
312 Add AVFILTER_FLAG_SUPPORT_TIMELINE* filter flags.
314 2013-04-19 - 380cfce - lavc 55.4.100
315 Add AV_CODEC_PROP_TEXT_SUB property for text based subtitles codec.
317 2013-04-18 - 7c1a002 - lavf 55.3.100
318 The matroska demuxer can now output proper verbatim ASS packets. It will
319 become the default starting lavf 56.0.100.
321 2013-04-10 - af0d270 - lavu 25.26.100 - avutil.h,opt.h
322 Add av_int_list_length()
323 and av_opt_set_int_list().
325 2013-03-30 - 5c73645 - lavu 52.24.100 - samplefmt.h
326 Add av_samples_alloc_array_and_samples().
328 2013-03-29 - ef7b6b4 - lavf 55.1.100 - avformat.h
329 Add av_guess_frame_rate()
331 2013-03-20 - 8d928a9 - lavu 52.22.100 - opt.h
332 Add AV_OPT_TYPE_DURATION value to AVOptionType enum.
334 2013-03-17 - 7aa9af5 - lavu 52.20.100 - opt.h
335 Add AV_OPT_TYPE_VIDEO_RATE value to AVOptionType enum.
337 2013-03-07 - 9767ec6 - lavu 52.18.100 - avstring.h,bprint.h
338 Add av_escape() and av_bprint_escape() API.
340 2013-02-24 - b59cd08 - lavfi 3.41.100 - buffersink.h
341 Add sample_rates field to AVABufferSinkParams.
343 2013-01-17 - a1a707f - lavf 54.61.100
344 Add av_codec_get_tag2().
346 2013-01-01 - 2eb2e17 - lavfi 3.34.100
347 Add avfilter_get_audio_buffer_ref_from_arrays_channels.
349 2012-12-20 - 34de47aa - lavfi 3.29.100 - avfilter.h
350 Add AVFilterLink.channels, avfilter_link_get_channels()
351 and avfilter_ref_get_channels().
353 2012-12-15 - 96d815fc - lavc 54.80.100 - avcodec.h
354 Add pkt_size field to AVFrame.
356 2012-11-25 - c70ec631 - lavu 52.9.100 - opt.h
357 Add the following convenience functions to opt.h:
358 av_opt_get_image_size
360 av_opt_get_sample_fmt
361 av_opt_set_image_size
363 av_opt_set_sample_fmt
365 2012-11-17 - 4cd74c81 - lavu 52.8.100 - bprint.h
366 Add av_bprint_strftime().
368 2012-11-15 - 92648107 - lavu 52.7.100 - opt.h
369 Add av_opt_get_key_value().
371 2012-11-13 - 79456652 - lavfi 3.23.100 - avfilter.h
372 Add channels field to AVFilterBufferRefAudioProps.
374 2012-11-03 - 481fdeee - lavu 52.3.100 - opt.h
375 Add AV_OPT_TYPE_SAMPLE_FMT value to AVOptionType enum.
377 2012-10-21 - 6fb2fd8 - lavc 54.68.100 - avcodec.h
378 lavfi 3.20.100 - avfilter.h
379 Add AV_PKT_DATA_STRINGS_METADATA side data type, used to transmit key/value
380 strings between AVPacket and AVFrame, and add metadata field to
381 AVCodecContext (which shall not be accessed by users; see AVFrame metadata
384 2012-09-27 - a70b493 - lavd 54.3.100 - version.h
385 Add LIBAVDEVICE_IDENT symbol.
387 2012-09-27 - a70b493 - lavfi 3.18.100 - version.h
388 Add LIBAVFILTER_IDENT symbol.
390 2012-09-27 - a70b493 - libswr 0.16.100 - version.h
391 Add LIBSWRESAMPLE_VERSION, LIBSWRESAMPLE_BUILD
392 and LIBSWRESAMPLE_IDENT symbols.
394 2012-09-06 - 29e972f - lavu 51.72.100 - parseutils.h
395 Add av_small_strptime() time parsing function.
397 Can be used as a stripped-down replacement for strptime(), on
398 systems which do not support it.
400 2012-08-25 - 2626cc4 - lavf 54.28.100
401 Matroska demuxer now identifies SRT subtitles as AV_CODEC_ID_SUBRIP instead
404 2012-08-13 - 5c0d8bc - lavfi 3.8.100 - avfilter.h
405 Add avfilter_get_class() function, and priv_class field to AVFilter
408 2012-08-12 - a25346e - lavu 51.69.100 - opt.h
409 Add AV_OPT_FLAG_FILTERING_PARAM symbol in opt.h.
411 2012-07-31 - 23fc4dd - lavc 54.46.100
412 Add channels field to AVFrame.
414 2012-07-30 - f893904 - lavu 51.66.100
415 Add av_get_channel_description()
416 and av_get_standard_channel_layout() functions.
418 2012-07-21 - 016a472 - lavc 54.43.100
419 Add decode_error_flags field to AVFrame.
421 2012-07-20 - b062936 - lavf 54.18.100
422 Add avformat_match_stream_specifier() function.
424 2012-07-14 - f49ec1b - lavc 54.38.100 - avcodec.h
425 Add metadata to AVFrame, and the accessor functions
426 av_frame_get_metadata() and av_frame_set_metadata().
428 2012-07-10 - 0e003d8 - lavc 54.33.100
429 Add av_fast_padded_mallocz().
431 2012-07-10 - 21d5609 - lavfi 3.2.0 - avfilter.h
432 Add init_opaque() callback to AVFilter struct.
434 2012-06-26 - e6674e4 - lavu 51.63.100 - imgutils.h
435 Add functions to libavutil/imgutils.h:
436 av_image_get_buffer_size()
437 av_image_fill_arrays()
438 av_image_copy_to_buffer()
440 2012-06-24 - c41899a - lavu 51.62.100 - version.h
441 version moved from avutil.h to version.h
443 2012-04-11 - 359abb1 - lavu 51.58.100 - error.h
444 Add av_make_error_string() and av_err2str() utilities to
447 2012-06-05 - 62b39d4 - lavc 54.24.100
448 Add pkt_duration field to AVFrame.
450 2012-05-24 - f2ee065 - lavu 51.54.100
451 Move AVPALETTE_SIZE and AVPALETTE_COUNT macros from
452 libavcodec/avcodec.h to libavutil/pixfmt.h.
454 2012-05-14 - 94a9ac1 - lavf 54.5.100
455 Add av_guess_sample_aspect_ratio() function.
457 2012-04-20 - 65fa7bc - lavfi 2.70.100
458 Add avfilter_unref_bufferp() to avfilter.h.
460 2012-04-13 - 162e400 - lavfi 2.68.100
461 Install libavfilter/asrc_abuffer.h public header.
463 2012-03-26 - a67d9cf - lavfi 2.66.100
464 Add avfilter_fill_frame_from_{audio_,}buffer_ref() functions.
466 2013-05-15 - ff46809 / e6c4ac7 - lavu 52.32.100 / 52.11.0 - pixdesc.h
467 Replace PIX_FMT_* flags with AV_PIX_FMT_FLAG_*.
469 2013-04-03 - 6fc58a8 / 507b1e4 - lavc 55.7.100 / 55.4.0 - avcodec.h
470 Add field_order to AVCodecParserContext.
472 2013-04-19 - f4b05cd / 5e83d9a - lavc 55.5.100 / 55.2.0 - avcodec.h
473 Add CODEC_FLAG_UNALIGNED to allow decoders to produce unaligned output.
475 2013-04-11 - lavfi 3.53.100 / 3.8.0
476 231fd44 / 38f0c07 - Move all content from avfiltergraph.h to avfilter.h. Deprecate
477 avfilterhraph.h, user applications should include just avfilter.h
478 86070b8 / bc1a985 - Add avfilter_graph_alloc_filter(), deprecate avfilter_open() and
479 avfilter_graph_add_filter().
480 4fde705 / 1113672 - Add AVFilterContext.graph pointing to the AVFilterGraph that contains the
482 710b0aa / 48a5ada - Add avfilter_init_str(), deprecate avfilter_init_filter().
483 46de9ba / 1ba95a9 - Add avfilter_init_dict().
484 16fc24b / 7cdd737 - Add AVFilter.flags field and AVFILTER_FLAG_DYNAMIC_{INPUTS,OUTPUTS} flags.
485 f4db6bf / 7e8fe4b - Add avfilter_pad_count() for counting filter inputs/outputs.
486 835cc0f / fa2a34c - Add avfilter_next(), deprecate av_filter_next().
487 Deprecate avfilter_uninit().
489 2013-04-09 - lavfi 3.51.100 / 3.7.0 - avfilter.h
490 0594ef0 / b439c99 - Add AVFilter.priv_class for exporting filter options through the
491 AVOptions API in the similar way private options work in lavc and lavf.
492 44d4488 / 8114c10 - Add avfilter_get_class().
493 Switch all filters to use AVOptions.
495 2013-03-19 - 17ebef2 / 2c328a9 - lavu 52.20.100 / 52.9.0 - pixdesc.h
496 Add av_pix_fmt_count_planes() function for counting planes in a pixel format.
498 2013-03-16 - ecade98 / 42c7c61 - lavfi 3.47.100 / 3.6.0
499 Add AVFilterGraph.nb_filters, deprecate AVFilterGraph.filter_count.
501 2013-03-08 - Reference counted buffers - lavu 52.8.0, lavc 55.0.100 / 55.0.0, lavf 55.0.100 / 55.0.0,
502 lavd 54.4.100 / 54.0.0, lavfi 3.5.0
503 36099df / 8e401db, 532f31a / 1cec062 - add a new API for reference counted buffers and buffer
504 pools (new header libavutil/buffer.h).
505 2653e12 / 1afddbe - add AVPacket.buf to allow reference counting for the AVPacket data.
506 Add av_packet_from_data() function for constructing packets from
508 c4e8821 / 7ecc2d4 - move AVFrame from lavc to lavu (new header libavutil/frame.h), add
509 AVFrame.buf/extended_buf to allow reference counting for the AVFrame
510 data. Add new API for working with reference-counted AVFrames.
511 80e9e63 / 759001c - add the refcounted_frames field to AVCodecContext to make audio and
512 video decoders return reference-counted frames. Add get_buffer2()
513 callback to AVCodecContext which allocates reference-counted frames.
514 Add avcodec_default_get_buffer2() as the default get_buffer2()
516 Deprecate AVCodecContext.get_buffer() / release_buffer() /
517 reget_buffer(), avcodec_default_get_buffer(),
518 avcodec_default_reget_buffer(), avcodec_default_release_buffer().
519 Remove avcodec_default_free_buffers(), which should not have ever
520 been called from outside of lavc.
521 Deprecate the following AVFrame fields:
522 * base -- is now stored in AVBufferRef
523 * reference, type, buffer_hints -- are unnecessary in the new API
524 * hwaccel_picture_private, owner, thread_opaque -- should not
525 have been acessed from outside of lavc
526 * qscale_table, qstride, qscale_type, mbskip_table, motion_val,
527 mb_type, dct_coeff, ref_index -- mpegvideo-specific tables,
528 which are not exported anymore.
529 a05a44e / 7e35037 - switch libavfilter to use AVFrame instead of AVFilterBufferRef. Add
530 av_buffersrc_add_frame(), deprecate av_buffersrc_buffer().
531 Add av_buffersink_get_frame() and av_buffersink_get_samples(),
532 deprecate av_buffersink_read() and av_buffersink_read_samples().
533 Deprecate AVFilterBufferRef and all functions for working with it.
535 2013-03-17 - 6c17ff8 / 12c5c1d - lavu 52.19.100 / 52.8.0 - avstring.h
536 Add av_isdigit, av_isgraph, av_isspace, av_isxdigit.
538 2013-02-23 - 71cf094 / 9f12235 - lavfi 3.40.100 / 3.4.0 - avfiltergraph.h
539 Add resample_lavr_opts to AVFilterGraph for setting libavresample options
540 for auto-inserted resample filters.
542 2013-01-25 - e7e14bc / 38c1466 - lavu 52.17.100 / 52.7.0 - dict.h
543 Add av_dict_parse_string() to set multiple key/value pairs at once from a
546 2013-01-25 - 25be630 / b85a5e8 - lavu 52.16.100 / 52.6.0 - avstring.h
549 2013-01-15 - e7e0186 / 8ee288d - lavu 52.15.100 / 52.5.0 - hmac.h
552 2013-01-13 - 8ee7b38 / 44e065d - lavc 54.87.100 / 54.36.0 - vdpau.h
553 Add AVVDPAUContext struct for VDPAU hardware-accelerated decoding.
555 2013-01-12 - dae382b / 169fb94 - lavu 52.14.100 / 52.4.0 - pixdesc.h
556 Add AV_PIX_FMT_VDPAU flag.
558 2013-01-07 - 249fca3 / 074a00d - lavr 1.1.0
559 Add avresample_set_channel_mapping() for input channel reordering,
560 duplication, and silencing.
562 2012-12-29 - 2ce43b3 / d8fd06c - lavu 52.13.100 / 52.3.0 - avstring.h
563 Add av_basename() and av_dirname().
565 2012-11-11 - 03b0787 / 5980f5d - lavu 52.6.100 / 52.2.0 - audioconvert.h
566 Rename audioconvert.h to channel_layout.h. audioconvert.h is now deprecated.
568 2012-11-05 - 7d26be6 / dfde8a3 - lavu 52.5.100 / 52.1.0 - intmath.h
569 Add av_ctz() for trailing zero bit count
571 2012-10-21 - e3a91c5 / a893655 - lavu 51.77.100 / 51.45.0 - error.h
572 Add AVERROR_EXPERIMENTAL
574 2012-10-12 - a33ed6b / d2fcb35 - lavu 51.76.100 / 51.44.0 - pixdesc.h
575 Add functions for accessing pixel format descriptors.
576 Accessing the av_pix_fmt_descriptors array directly is now
579 2012-10-11 - f391e40 / 9a92aea - lavu 51.75.100 / 51.43.0 - aes.h, md5.h, sha.h, tree.h
580 Add functions for allocating the opaque contexts for the algorithms,
582 2012-10-10 - de31814 / b522000 - lavf 54.32.100 / 54.18.0 - avio.h
583 Add avio_closep to complement avio_close.
585 2012-10-08 - ae77266 / 78071a1 - lavu 51.74.100 / 51.42.0 - pixfmt.h
586 Rename PixelFormat to AVPixelFormat and all PIX_FMT_* to AV_PIX_FMT_*.
587 To provide backwards compatibility, PixelFormat is now #defined as
589 Note that this can break user code that includes pixfmt.h and uses the
590 'PixelFormat' identifier. Such code should either #undef PixelFormat
591 or stop using the PixelFormat name.
593 2012-10-05 - 55c49af / e7ba5b1 - lavr 1.0.0 - avresample.h
594 Data planes parameters to avresample_convert() and
595 avresample_read() are now uint8_t** instead of void**.
596 Libavresample is now stable.
598 2012-09-24 - 46a3595 / a42aada - lavc 54.59.100 / 54.28.0 - avcodec.h
599 Add avcodec_free_frame(). This function must now
600 be used for freeing an AVFrame.
602 2012-09-12 - e3e09f2 / 8919fee - lavu 51.73.100 / 51.41.0 - audioconvert.h
603 Added AV_CH_LOW_FREQUENCY_2 channel mask value.
605 2012-09-04 - b21b5b0 / 686a329 - lavu 51.71.100 / 51.40.0 - opt.h
606 Reordered the fields in default_val in AVOption, changed which
607 default_val field is used for which AVOptionType.
609 2012-08-30 - 98298eb / a231832 - lavc 54.54.101 / 54.26.1 - avcodec.h
610 Add codec descriptor properties AV_CODEC_PROP_LOSSY and
611 AV_CODEC_PROP_LOSSLESS.
613 2012-08-18 - lavc 54.26 - avcodec.h
614 Add codec descriptors for accessing codec properties without having
615 to refer to a specific decoder or encoder.
617 f5f3684 / c223d79 - Add an AVCodecDescriptor struct and functions
618 avcodec_descriptor_get() and avcodec_descriptor_next().
619 f5f3684 / 51efed1 - Add AVCodecDescriptor.props and AV_CODEC_PROP_INTRA_ONLY.
620 6c180b3 / 91e59fe - Add avcodec_descriptor_get_by_name().
622 2012-08-08 - f5f3684 / 987170c - lavu 51.68.100 / 51.38.0 - dict.h
625 2012-08-07 - 7a72695 / 104e10f - lavc 54.51.100 / 54.25.0 - avcodec.h
626 Rename CodecID to AVCodecID and all CODEC_ID_* to AV_CODEC_ID_*.
627 To provide backwards compatibility, CodecID is now #defined as AVCodecID.
628 Note that this can break user code that includes avcodec.h and uses the
629 'CodecID' identifier. Such code should either #undef CodecID or stop using the
632 2012-08-03 - e776ee8 / 239fdf1 - lavu 51.66.101 / 51.37.1 - cpu.h
633 lsws 2.1.1 - swscale.h
634 Rename AV_CPU_FLAG_MMX2 ---> AV_CPU_FLAG_MMXEXT.
635 Rename SWS_CPU_CAPS_MMX2 ---> SWS_CPU_CAPS_MMXEXT.
637 2012-07-29 - 7c26761 / 681ed00 - lavf 54.22.100 / 54.13.0 - avformat.h
638 Add AVFMT_FLAG_NOBUFFER for low latency use cases.
640 2012-07-10 - fbe0245 / f3e5e6f - lavu 51.65.100 / 51.37.0
641 Add av_malloc_array() and av_mallocz_array()
643 2012-06-22 - e847f41 / d3d3a32 - lavu 51.61.100 / 51.34.0
646 2012-06-20 - 4da42eb / ae0a301 - lavu 51.60.100 / 51.33.0
647 Move av_gettime() to libavutil, add libavutil/time.h
649 2012-06-09 - 82edf67 / 3971be0 - lavr 0.0.3
650 Add a parameter to avresample_build_matrix() for Dolby/DPLII downmixing.
652 2012-06-12 - c7b9eab / 9baeff9 - lavfi 2.79.100 / 2.23.0 - avfilter.h
653 Add AVFilterContext.nb_inputs/outputs. Deprecate
654 AVFilterContext.input/output_count.
656 2012-06-12 - c7b9eab / 84b9fbe - lavfi 2.79.100 / 2.22.0 - avfilter.h
657 Add avfilter_pad_get_type() and avfilter_pad_get_name(). Those
658 should now be used instead of accessing AVFilterPad members
661 2012-06-12 - 3630a07 / b0f0dfc - lavu 51.57.100 / 51.32.0 - audioconvert.h
662 Add av_get_channel_layout_channel_index(), av_get_channel_name()
663 and av_channel_layout_extract_channel().
665 2012-05-25 - 53ce990 / 154486f - lavu 51.55.100 / 51.31.0 - opt.h
668 2012-05-15 - lavfi 2.74.100 / 2.17.0
669 Add support for audio filters
670 61930bd / ac71230, 1cbf7fb / a2cd9be - add video/audio buffer sink in a new installed
672 1cbf7fb / 720c6b7 - add av_buffersrc_write_frame(), deprecate
673 av_vsrc_buffer_add_frame()
674 61930bd / ab16504 - add avfilter_copy_buf_props()
675 61930bd / 9453c9e - add extended_data to AVFilterBuffer
676 61930bd / 1b8c927 - add avfilter_get_audio_buffer_ref_from_arrays()
678 2012-05-09 - lavu 51.53.100 / 51.30.0 - samplefmt.h
679 61930bd / 142e740 - add av_samples_copy()
680 61930bd / 6d7f617 - add av_samples_set_silence()
682 2012-05-09 - 61930bd / a5117a2 - lavc 54.21.101 / 54.13.1
683 For audio formats with fixed frame size, the last frame
684 no longer needs to be padded with silence, libavcodec
685 will handle this internally (effectively all encoders
686 behave as if they had CODEC_CAP_SMALL_LAST_FRAME set).
688 2012-05-07 - 653d117 / 828bd08 - lavc 54.20.100 / 54.13.0 - avcodec.h
689 Add sample_rate and channel_layout fields to AVFrame.
691 2012-05-01 - 2330eb1 / 4010d72 - lavr 0.0.1
692 Change AV_MIX_COEFF_TYPE_Q6 to AV_MIX_COEFF_TYPE_Q8.
694 2012-04-25 - e890b68 / 3527a73 - lavu 51.48.100 / 51.29.0 - cpu.h
695 Add av_parse_cpu_flags()
697 2012-04-24 - 3ead79e / c8af852 - lavr 0.0.0
698 Add libavresample audio conversion library
700 2012-04-20 - 3194ab7 / 0c0d1bc - lavu 51.47.100 / 51.28.0 - audio_fifo.h
701 Add audio FIFO functions:
703 av_audio_fifo_alloc()
704 av_audio_fifo_realloc()
705 av_audio_fifo_write()
707 av_audio_fifo_drain()
708 av_audio_fifo_reset()
710 av_audio_fifo_space()
712 2012-04-14 - lavfi 2.70.100 / 2.16.0 - avfiltergraph.h
713 7432bcf / d7bcc71 Add avfilter_graph_parse2().
715 2012-04-08 - 6bfb304 / 4d693b0 - lavu 51.46.100 / 51.27.0 - samplefmt.h
716 Add av_get_packed_sample_fmt() and av_get_planar_sample_fmt()
718 2012-03-21 - b75c67d - lavu 51.43.100
719 Add bprint.h for bprint API.
721 2012-02-21 - 9cbf17e - lavc 54.4.100
722 Add av_get_pcm_codec() function.
724 2012-02-16 - 560b224 - libswr 0.7.100
725 Add swr_set_matrix() function.
727 2012-02-09 - c28e7af - lavu 51.39.100
728 Add a new installed header libavutil/timestamp.h with timestamp
731 2012-02-06 - 70ffda3 - lavu 51.38.100
732 Add av_parse_ratio() function to parseutils.h.
734 2012-02-06 - 70ffda3 - lavu 51.38.100
735 Add AV_LOG_MAX_OFFSET macro to log.h.
737 2012-02-02 - 0eaa123 - lavu 51.37.100
738 Add public timecode helpers.
740 2012-01-24 - 0c3577b - lavfi 2.60.100
741 Add avfilter_graph_dump.
743 2012-03-20 - 0ebd836 / 3c90cc2 - lavfo 54.2.0
744 Deprecate av_read_packet(), use av_read_frame() with
745 AVFMT_FLAG_NOPARSE | AVFMT_FLAG_NOFILLIN in AVFormatContext.flags
747 2012-03-05 - lavc 54.10.100 / 54.8.0
748 f095391 / 6699d07 Add av_get_exact_bits_per_sample()
749 f095391 / 9524cf7 Add av_get_audio_frame_duration()
751 2012-03-04 - 2af8f2c / 44fe77b - lavc 54.8.100 / 54.7.0 - avcodec.h
752 Add av_codec_is_encoder/decoder().
754 2012-03-01 - 1eb7f39 / 442c132 - lavc 54.5.100 / 54.3.0 - avcodec.h
755 Add av_packet_shrink_side_data.
757 2012-02-29 - 79ae084 / dd2a4bc - lavf 54.2.100 / 54.2.0 - avformat.h
758 Add AVStream.attached_pic and AV_DISPOSITION_ATTACHED_PIC,
759 used for dealing with attached pictures/cover art.
761 2012-02-25 - 305e4b3 / c9bca80 - lavu 51.41.100 / 51.24.0 - error.h
763 NOTE: this was backported to 0.8
765 2012-02-20 - eadd426 / e9cda85 - lavc 54.2.100 / 54.2.0
766 Add duration field to AVCodecParserContext
768 2012-02-20 - eadd426 / 0b42a93 - lavu 51.40.100 / 51.23.1 - mathematics.h
769 Add av_rescale_q_rnd()
771 2012-02-08 - f2b20b7 / 38d5533 - lavu 51.38.101 / 51.22.1 - pixdesc.h
772 Add PIX_FMT_PSEUDOPAL flag.
774 2012-02-08 - f2b20b7 / 52f82a1 - lavc 54.2.100 / 54.1.0
775 Add avcodec_encode_video2() and deprecate avcodec_encode_video().
777 2012-02-01 - 4c677df / 316fc74 - lavc 54.1.0
778 Add av_fast_padded_malloc() as alternative for av_realloc() when aligned
779 memory is required. The buffer will always have FF_INPUT_BUFFER_PADDING_SIZE
780 zero-padded bytes at the end.
782 2012-01-31 - a369a6b / dd6d3b0 - lavf 54.1.0
783 Add avformat_get_riff_video_tags() and avformat_get_riff_audio_tags().
784 NOTE: this was backported to 0.8
786 2012-01-31 - a369a6b / af08d9a - lavc 54.1.0
787 Add avcodec_is_open() function.
788 NOTE: this was backported to 0.8
790 2012-01-30 - 151ecc2 / 8b93312 - lavu 51.36.100 / 51.22.0 - intfloat.h
791 Add a new installed header libavutil/intfloat.h with int/float punning
793 NOTE: this was backported to 0.8
795 2012-01-25 - lavf 53.31.100 / 53.22.0
796 3c5fe5b / f1caf01 Allow doing av_write_frame(ctx, NULL) for flushing possible
797 buffered data within a muxer. Added AVFMT_ALLOW_FLUSH for
798 muxers supporting it (av_write_frame makes sure it is called
799 only for muxers with this flag).
801 2012-01-15 - lavc 53.56.105 / 53.34.0
802 New audio encoding API:
803 67f5650 / b2c75b6 Add CODEC_CAP_VARIABLE_FRAME_SIZE capability for use by audio
805 67f5650 / 5ee5fa0 Add avcodec_fill_audio_frame() as a convenience function.
806 67f5650 / b2c75b6 Add avcodec_encode_audio2() and deprecate avcodec_encode_audio().
807 Add AVCodec.encode2().
809 2012-01-12 - b18e17e / 3167dc9 - lavfi 2.59.100 / 2.15.0
810 Add a new installed header -- libavfilter/version.h -- with version macros.
812 2011-12-08 - a502939 - lavfi 2.52.0
813 Add av_buffersink_poll_frame() to buffersink.h.
815 2011-12-08 - 26c6fec - lavu 51.31.0
816 Add av_log_format_line.
818 2011-12-03 - 976b095 - lavu 51.30.0
821 2011-11-24 - 573ffbb - lavu 51.28.1
822 Add av_get_alt_sample_fmt() to samplefmt.h.
824 2011-11-03 - 96949da - lavu 51.23.0
825 Add av_strcasecmp() and av_strncasecmp() to avstring.h.
827 2011-10-20 - b35e9e1 - lavu 51.22.0
828 Add av_strtok() to avstring.h.
830 2012-01-03 - ad1c8dd / b73ec05 - lavu 51.34.100 / 51.21.0
833 2011-12-18 - 7c29313 / 8400b12 - lavc 53.46.1 / 53.28.1
834 Deprecate AVFrame.age. The field is unused.
836 2011-12-12 - 8bc7fe4 / 5266045 - lavf 53.25.0 / 53.17.0
837 Add avformat_close_input().
838 Deprecate av_close_input_file() and av_close_input_stream().
840 2011-12-02 - e4de716 / 0eea212 - lavc 53.40.0 / 53.25.0
841 Add nb_samples and extended_data fields to AVFrame.
842 Deprecate AVCODEC_MAX_AUDIO_FRAME_SIZE.
843 Deprecate avcodec_decode_audio3() in favor of avcodec_decode_audio4().
844 avcodec_decode_audio4() writes output samples to an AVFrame, which allows
845 audio decoders to use get_buffer().
847 2011-12-04 - e4de716 / 560f773 - lavc 53.40.0 / 53.24.0
848 Change AVFrame.data[4]/base[4]/linesize[4]/error[4] to [8] at next major bump.
849 Change AVPicture.data[4]/linesize[4] to [8] at next major bump.
850 Change AVCodecContext.error[4] to [8] at next major bump.
851 Add AV_NUM_DATA_POINTERS to simplify the bump transition.
853 2011-11-23 - 8e576d5 / bbb46f3 - lavu 51.27.0 / 51.18.0
854 Add av_samples_get_buffer_size(), av_samples_fill_arrays(), and
855 av_samples_alloc(), to samplefmt.h.
857 2011-11-23 - 8e576d5 / 8889cc4 - lavu 51.27.0 / 51.17.0
858 Add planar sample formats and av_sample_fmt_is_planar() to samplefmt.h.
860 2011-11-19 - dbb38bc / f3a29b7 - lavc 53.36.0 / 53.21.0
861 Move some AVCodecContext fields to a new private struct, AVCodecInternal,
862 which is accessed from a new field, AVCodecContext.internal.
864 AVCodecContext.internal_buffer --> AVCodecInternal.buffer
865 AVCodecContext.internal_buffer_count --> AVCodecInternal.buffer_count
866 AVCodecContext.is_copy --> AVCodecInternal.is_copy
868 2011-11-16 - 8709ba9 / 6270671 - lavu 51.26.0 / 51.16.0
871 2011-11-13 - lavf 53.21.0 / 53.15.0
872 New interrupt callback API, allowing per-AVFormatContext/AVIOContext
874 5f268ca / 6aa0b98 Add AVIOInterruptCB struct and the interrupt_callback field to
876 5f268ca / 1dee0ac Add avio_open2() with additional parameters. Those are
877 an interrupt callback and an options AVDictionary.
878 This will allow passing AVOptions to protocols after lavf
881 2011-11-06 - 13b7781 / ba04ecf - lavu 51.24.0 / 51.14.0
882 Add av_strcasecmp() and av_strncasecmp() to avstring.h.
884 2011-11-06 - 13b7781 / 07b172f - lavu 51.24.0 / 51.13.0
885 Add av_toupper()/av_tolower()
887 2011-11-05 - d8cab5c / b6d08f4 - lavf 53.19.0 / 53.13.0
888 Add avformat_network_init()/avformat_network_deinit()
890 2011-10-27 - 6faf0a2 / 512557b - lavc 53.24.0 / 53.15.0
891 Remove avcodec_parse_frame.
892 Deprecate AVCodecContext.parse_only and CODEC_CAP_PARSE_ONLY.
894 2011-10-19 - d049257 / 569129a - lavf 53.17.0 / 53.10.0
895 Add avformat_new_stream(). Deprecate av_new_stream().
897 2011-10-13 - 91eb1b1 / b631fba - lavf 53.16.0 / 53.9.0
898 Add AVFMT_NO_BYTE_SEEK AVInputFormat flag.
900 2011-10-12 - lavu 51.21.0 / 51.12.0
901 AVOptions API rewrite.
903 - f884ef0 / 145f741 FF_OPT_TYPE* renamed to AV_OPT_TYPE_*
904 - new setting/getting functions with slightly different semantics:
905 f884ef0 / dac66da av_set_string3 -> av_opt_set
906 av_set_double -> av_opt_set_double
907 av_set_q -> av_opt_set_q
908 av_set_int -> av_opt_set_int
910 f884ef0 / 41d9d51 av_get_string -> av_opt_get
911 av_get_double -> av_opt_get_double
912 av_get_q -> av_opt_get_q
913 av_get_int -> av_opt_get_int
915 - f884ef0 / 8c5dcaa trivial rename av_next_option -> av_opt_next
916 - f884ef0 / 641c7af new functions - av_opt_child_next, av_opt_child_class_next
919 2011-09-22 - a70e787 - lavu 51.17.0
922 2011-09-18 - 645cebb - lavc 53.16.0
925 2011-09-16 - ea8de10 - lavfi 2.42.0
926 Add avfilter_all_channel_layouts.
928 2011-09-16 - 9899037 - lavfi 2.41.0
929 Rename avfilter_all_* function names to avfilter_make_all_*.
931 In particular, apply the renames:
932 avfilter_all_formats -> avfilter_make_all_formats
933 avfilter_all_channel_layouts -> avfilter_make_all_channel_layouts
934 avfilter_all_packing_formats -> avfilter_make_all_packing_formats
936 2011-09-12 - 4381bdd - lavfi 2.40.0
937 Change AVFilterBufferRefAudioProps.sample_rate type from uint32_t to int.
939 2011-09-12 - 2c03174 - lavfi 2.40.0
940 Simplify signature for avfilter_get_audio_buffer(), make it
941 consistent with avfilter_get_video_buffer().
943 2011-09-06 - 4f7dfe1 - lavfi 2.39.0
944 Rename libavfilter/vsink_buffer.h to libavfilter/buffersink.h.
946 2011-09-06 - c4415f6 - lavfi 2.38.0
947 Unify video and audio sink API.
949 In particular, add av_buffersink_get_buffer_ref(), deprecate
950 av_vsink_buffer_get_video_buffer_ref() and change the value for the
951 opaque field passed to the abuffersink init function.
953 2011-09-04 - 61e2e29 - lavu 51.16.0
956 2011-08-22 - dacd827 - lavf 53.10.0
957 Add av_find_program_from_stream().
959 2011-08-20 - 69e2c1a - lavu 51.13.0
960 Add av_get_media_type_string().
962 2011-09-03 - 1889c67 / fb4ca26 - lavc 53.13.0
965 Add {avcodec,avformat,sws}_get_class().
967 2011-08-03 - 1889c67 / c11fb82 - lavu 51.15.0
968 Add AV_OPT_SEARCH_FAKE_OBJ flag for av_opt_find() function.
970 2011-08-14 - 323b930 - lavu 51.12.0
971 Add av_fifo_peek2(), deprecate av_fifo_peek().
973 2011-08-26 - lavu 51.14.0 / 51.9.0
974 - 976a8b2 / add41de..976a8b2 / abc78a5 Do not include intfloat_readwrite.h,
975 mathematics.h, rational.h, pixfmt.h, or log.h from avutil.h.
977 2011-08-16 - 27fbe31 / 48f9e45 - lavf 53.11.0 / 53.8.0
978 Add avformat_query_codec().
980 2011-08-16 - 27fbe31 / bca06e7 - lavc 53.11.0
981 Add avcodec_get_type().
983 2011-08-06 - 0cb233c / 2f63440 - lavf 53.7.0
984 Add error_recognition to AVFormatContext.
986 2011-08-02 - 1d186e9 / 9d39cbf - lavc 53.9.1
987 Add AV_PKT_FLAG_CORRUPT AVPacket flag.
989 2011-07-16 - b57df29 - lavfi 2.27.0
990 Add audio packing negotiation fields and helper functions.
992 In particular, add AVFilterPacking enum, planar, in_packings and
993 out_packings fields to AVFilterLink, and the functions:
994 avfilter_set_common_packing_formats()
995 avfilter_all_packing_formats()
997 2011-07-10 - 3602ad7 / a67c061 - lavf 53.6.0
998 Add avformat_find_stream_info(), deprecate av_find_stream_info().
999 NOTE: this was backported to 0.7
1001 2011-07-10 - 3602ad7 / 0b950fe - lavc 53.8.0
1002 Add avcodec_open2(), deprecate avcodec_open().
1003 NOTE: this was backported to 0.7
1005 Add avcodec_alloc_context3. Deprecate avcodec_alloc_context() and
1006 avcodec_alloc_context2().
1008 2011-07-01 - b442ca6 - lavf 53.5.0 - avformat.h
1009 Add function av_get_output_timestamp().
1011 2011-06-28 - 5129336 - lavu 51.11.0 - avutil.h
1012 Define the AV_PICTURE_TYPE_NONE value in AVPictureType enum.
1014 2011-06-19 - fd2c0a5 - lavfi 2.23.0 - avfilter.h
1015 Add layout negotiation fields and helper functions.
1017 In particular, add in_chlayouts and out_chlayouts to AVFilterLink,
1019 avfilter_set_common_sample_formats()
1020 avfilter_set_common_channel_layouts()
1021 avfilter_all_channel_layouts()
1023 2011-06-19 - 527ca39 - lavfi 2.22.0 - AVFilterFormats
1024 Change type of AVFilterFormats.formats from int * to int64_t *,
1025 and update formats handling API accordingly.
1027 avfilter_make_format_list() still takes a int32_t array and converts
1028 it to int64_t. A new function, avfilter_make_format64_list(), that
1029 takes int64_t arrays has been added.
1031 2011-06-19 - 44f669e - lavfi 2.21.0 - vsink_buffer.h
1032 Add video sink buffer and vsink_buffer.h public header.
1034 2011-06-12 - 9fdf772 - lavfi 2.18.0 - avcodec.h
1035 Add avfilter_get_video_buffer_ref_from_frame() function in
1036 libavfilter/avcodec.h.
1038 2011-06-12 - c535494 - lavfi 2.17.0 - avfiltergraph.h
1039 Add avfilter_inout_alloc() and avfilter_inout_free() functions.
1041 2011-06-12 - 6119b23 - lavfi 2.16.0 - avfilter_graph_parse()
1042 Change avfilter_graph_parse() signature.
1044 2011-06-23 - 686959e / 67e9ae1 - lavu 51.10.0 / 51.8.0 - attributes.h
1045 Add av_printf_format().
1047 2011-06-16 - 2905e3f / 05e84c9, 2905e3f / 25de595 - lavf 53.4.0 / 53.2.0 - avformat.h
1048 Add avformat_open_input and avformat_write_header().
1049 Deprecate av_open_input_stream, av_open_input_file,
1050 AVFormatParameters and av_write_header.
1052 2011-06-16 - 2905e3f / 7e83e1c, 2905e3f / dc59ec5 - lavu 51.9.0 / 51.7.0 - opt.h
1053 Add av_opt_set_dict() and av_opt_find().
1054 Deprecate av_find_opt().
1055 Add AV_DICT_APPEND flag.
1057 2011-06-10 - 45fb647 / cb7c11c - lavu 51.6.0 - opt.h
1058 Add av_opt_flag_is_set().
1060 2011-06-10 - c381960 - lavfi 2.15.0 - avfilter_get_audio_buffer_ref_from_arrays
1061 Add avfilter_get_audio_buffer_ref_from_arrays() to avfilter.h.
1063 2011-06-09 - f9ecb84 / d9f80ea - lavu 51.8.0 - AVMetadata
1064 Move AVMetadata from lavf to lavu and rename it to
1065 AVDictionary -- new installed header dict.h.
1066 All av_metadata_* functions renamed to av_dict_*.
1068 2011-06-07 - d552f61 / a6703fa - lavu 51.8.0 - av_get_bytes_per_sample()
1069 Add av_get_bytes_per_sample() in libavutil/samplefmt.h.
1070 Deprecate av_get_bits_per_sample_fmt().
1072 2011-06-05 - f956924 / b39b062 - lavu 51.8.0 - opt.h
1073 Add av_opt_free convenience function.
1075 2011-06-06 - 95a0242 - lavfi 2.14.0 - AVFilterBufferRefAudioProps
1076 Remove AVFilterBufferRefAudioProps.size, and use nb_samples in
1077 avfilter_get_audio_buffer() and avfilter_default_get_audio_buffer() in
1080 2011-06-06 - 0bc2cca - lavu 51.6.0 - av_samples_alloc()
1081 Switch nb_channels and nb_samples parameters order in
1084 2011-06-06 - e1c7414 - lavu 51.5.0 - av_samples_*
1085 Change the data layout created by av_samples_fill_arrays() and
1088 2011-06-06 - 27bcf55 - lavfi 2.13.0 - vsrc_buffer.h
1089 Make av_vsrc_buffer_add_video_buffer_ref() accepts an additional
1090 flags parameter in input.
1092 2011-06-03 - e977ca2 - lavfi 2.12.0 - avfilter_link_free()
1093 Add avfilter_link_free() function.
1095 2011-06-02 - 5ad38d9 - lavu 51.4.0 - av_force_cpu_flags()
1096 Add av_cpu_flags() in libavutil/cpu.h.
1098 2011-05-28 - e71f260 - lavu 51.3.0 - pixdesc.h
1099 Add av_get_pix_fmt_name() in libavutil/pixdesc.h, and deprecate
1100 avcodec_get_pix_fmt_name() in libavcodec/avcodec.h in its favor.
1102 2011-05-25 - 39e4206 / 30315a8 - lavf 53.3.0 - avformat.h
1103 Add fps_probe_size to AVFormatContext.
1105 2011-05-22 - 5ecdfd0 - lavf 53.2.0 - avformat.h
1106 Introduce avformat_alloc_output_context2() and deprecate
1107 avformat_alloc_output_context().
1109 2011-05-22 - 83db719 - lavfi 2.10.0 - vsrc_buffer.h
1110 Make libavfilter/vsrc_buffer.h public.
1112 2011-05-19 - c000a9f - lavfi 2.8.0 - avcodec.h
1113 Add av_vsrc_buffer_add_frame() to libavfilter/avcodec.h.
1115 2011-05-14 - 9fdf772 - lavfi 2.6.0 - avcodec.h
1116 Add avfilter_get_video_buffer_ref_from_frame() to libavfilter/avcodec.h.
1118 2011-05-18 - 75a37b5 / 64150ff - lavc 53.7.0 - AVCodecContext.request_sample_fmt
1119 Add request_sample_fmt field to AVCodecContext.
1121 2011-05-10 - 59eb12f / 188dea1 - lavc 53.6.0 - avcodec.h
1122 Deprecate AVLPCType and the following fields in
1123 AVCodecContext: lpc_coeff_precision, prediction_order_method,
1124 min_partition_order, max_partition_order, lpc_type, lpc_passes.
1125 Corresponding FLAC encoder options should be used instead.
1127 2011-05-07 - 9fdf772 - lavfi 2.5.0 - avcodec.h
1128 Add libavfilter/avcodec.h header and avfilter_copy_frame_props()
1131 2011-05-07 - 18ded93 - lavc 53.5.0 - AVFrame
1132 Add format field to AVFrame.
1134 2011-05-07 - 22333a6 - lavc 53.4.0 - AVFrame
1135 Add width and height fields to AVFrame.
1137 2011-05-01 - 35fe66a - lavfi 2.4.0 - avfilter.h
1138 Rename AVFilterBufferRefVideoProps.pixel_aspect to
1139 sample_aspect_ratio.
1141 2011-05-01 - 77e9dee - lavc 53.3.0 - AVFrame
1142 Add a sample_aspect_ratio field to AVFrame.
1144 2011-05-01 - 1ba5727 - lavc 53.2.0 - AVFrame
1145 Add a pkt_pos field to AVFrame.
1147 2011-04-29 - 35ceaa7 - lavu 51.2.0 - mem.h
1148 Add av_dynarray_add function for adding
1149 an element to a dynamic array.
1151 2011-04-26 - d7e5aeb / bebe72f - lavu 51.1.0 - avutil.h
1152 Add AVPictureType enum and av_get_picture_type_char(), deprecate
1153 FF_*_TYPE defines and av_get_pict_type_char() defined in
1154 libavcodec/avcodec.h.
1156 2011-04-26 - d7e5aeb / 10d3940 - lavfi 2.3.0 - avfilter.h
1157 Add pict_type and key_frame fields to AVFilterBufferRefVideo.
1159 2011-04-26 - d7e5aeb / 7a11c82 - lavfi 2.2.0 - vsrc_buffer
1160 Add sample_aspect_ratio fields to vsrc_buffer arguments
1162 2011-04-21 - 8772156 / 94f7451 - lavc 53.1.0 - avcodec.h
1163 Add CODEC_CAP_SLICE_THREADS for codecs supporting sliced threading.
1165 2011-04-15 - lavc 52.120.0 - avcodec.h
1166 AVPacket structure got additional members for passing side information:
1167 c407984 / 4de339e introduce side information for AVPacket
1168 c407984 / 2d8591c make containers pass palette change in AVPacket
1170 2011-04-12 - lavf 52.107.0 - avio.h
1171 Avio cleanup, part II - deprecate the entire URLContext API:
1172 c55780d / 175389c add avio_check as a replacement for url_exist
1173 9891004 / ff1ec0c add avio_pause and avio_seek_time as replacements
1174 for _av_url_read_fseek/fpause
1175 d4d0932 / cdc6a87 deprecate av_protocol_next(), avio_enum_protocols
1176 should be used instead.
1177 c88caa5 / 80c6e23 rename url_set_interrupt_cb->avio_set_interrupt_cb.
1178 c88caa5 / f87b1b3 rename open flags: URL_* -> AVIO_*
1179 d4d0932 / f8270bb add avio_enum_protocols.
1180 d4d0932 / 5593f03 deprecate URLProtocol.
1181 d4d0932 / c486dad deprecate URLContext.
1182 d4d0932 / 026e175 deprecate the typedef for URLInterruptCB
1183 c88caa5 / 8e76a19 deprecate av_register_protocol2.
1184 11d7841 / b840484 deprecate URL_PROTOCOL_FLAG_NESTED_SCHEME
1185 11d7841 / 1305d93 deprecate av_url_read_seek
1186 11d7841 / fa104e1 deprecate av_url_read_pause
1187 434f248 / 727c7aa deprecate url_get_filename().
1188 434f248 / 5958df3 deprecate url_max_packet_size().
1189 434f248 / 1869ea0 deprecate url_get_file_handle().
1190 434f248 / 32a97d4 deprecate url_filesize().
1191 434f248 / e52a914 deprecate url_close().
1192 434f248 / 58a48c6 deprecate url_seek().
1193 434f248 / 925e908 deprecate url_write().
1194 434f248 / dce3756 deprecate url_read_complete().
1195 434f248 / bc371ac deprecate url_read().
1196 434f248 / 0589da0 deprecate url_open().
1197 434f248 / 62eaaea deprecate url_connect.
1198 434f248 / 5652bb9 deprecate url_alloc.
1199 434f248 / 333e894 deprecate url_open_protocol
1200 434f248 / e230705 deprecate url_poll and URLPollEntry
1202 2011-04-08 - lavf 52.106.0 - avformat.h
1203 Minor avformat.h cleanup:
1204 d4d0932 / a9bf9d8 deprecate av_guess_image2_codec
1205 d4d0932 / c3675df rename avf_sdp_create->av_sdp_create
1207 2011-04-03 - lavf 52.105.0 - avio.h
1208 Large-scale renaming/deprecating of AVIOContext-related functions:
1209 2cae980 / 724f6a0 deprecate url_fdopen
1210 2cae980 / 403ee83 deprecate url_open_dyn_packet_buf
1211 2cae980 / 6dc7d80 rename url_close_dyn_buf -> avio_close_dyn_buf
1212 2cae980 / b92c545 rename url_open_dyn_buf -> avio_open_dyn_buf
1213 2cae980 / 8978fed introduce an AVIOContext.seekable field as a replacement for
1214 AVIOContext.is_streamed and url_is_streamed()
1215 1caa412 / b64030f deprecate get_checksum()
1216 1caa412 / 4c4427a deprecate init_checksum()
1217 2fd41c9 / 4ec153b deprecate udp_set_remote_url/get_local_port
1218 4fa0e24 / 933e90a deprecate av_url_read_fseek/fpause
1219 4fa0e24 / 8d9769a deprecate url_fileno
1220 0fecf26 / b7f2fdd rename put_flush_packet -> avio_flush
1221 0fecf26 / 35f1023 deprecate url_close_buf
1222 0fecf26 / 83fddae deprecate url_open_buf
1223 0fecf26 / d9d86e0 rename url_fprintf -> avio_printf
1224 0fecf26 / 59f65d9 deprecate url_setbufsize
1225 6947b0c / 3e68b3b deprecate url_ferror
1226 e8bb2e2 deprecate url_fget_max_packet_size
1227 76aa876 rename url_fsize -> avio_size
1228 e519753 deprecate url_fgetc
1229 655e45e deprecate url_fgets
1230 a2704c9 rename url_ftell -> avio_tell
1231 e16ead0 deprecate get_strz() in favor of avio_get_str
1232 0300db8,2af07d3 rename url_fskip -> avio_skip
1233 6b4aa5d rename url_fseek -> avio_seek
1234 61840b4 deprecate put_tag
1235 22a3212 rename url_fopen/fclose -> avio_open/close.
1236 0ac8e2b deprecate put_nbyte
1237 77eb550 rename put_byte -> avio_w8
1238 put_[b/l]e<type> -> avio_w[b/l]<type>
1239 put_buffer -> avio_write
1240 b7effd4 rename get_byte -> avio_r8,
1241 get_[b/l]e<type> -> avio_r[b/l]<type>
1242 get_buffer -> avio_read
1243 b3db9ce deprecate get_partial_buffer
1244 8d9ac96 rename av_alloc_put_byte -> avio_alloc_context
1246 2011-03-25 - 27ef7b1 / 34b47d7 - lavc 52.115.0 - AVCodecContext.audio_service_type
1247 Add audio_service_type field to AVCodecContext.
1249 2011-03-17 - e309fdc - lavu 50.40.0 - pixfmt.h
1250 Add PIX_FMT_BGR48LE and PIX_FMT_BGR48BE pixel formats
1252 2011-03-02 - 863c471 - lavf 52.103.0 - av_pkt_dump2, av_pkt_dump_log2
1253 Add new functions av_pkt_dump2, av_pkt_dump_log2 that uses the
1254 source stream timebase for outputting timestamps. Deprecate
1255 av_pkt_dump and av_pkt_dump_log.
1257 2011-02-20 - e731b8d - lavf 52.102.0 - avio.h
1258 * e731b8d - rename init_put_byte() to ffio_init_context(), deprecating the
1259 original, and move it to a private header so it is no longer
1260 part of our public API. Instead, use av_alloc_put_byte().
1261 * ae628ec - rename ByteIOContext to AVIOContext.
1263 2011-02-16 - 09d171b - lavf 52.101.0 - avformat.h
1264 lavu 52.39.0 - parseutils.h
1265 * 610219a - Add av_ prefix to dump_format().
1266 * f6c7375 - Replace parse_date() in lavf with av_parse_time() in lavu.
1267 * ab0287f - Move find_info_tag from lavf to lavu and add av_prefix to it.
1269 2011-02-15 - lavu 52.38.0 - merge libavcore
1270 libavcore is merged back completely into libavutil
1272 2011-02-10 - 55bad0c - lavc 52.113.0 - vbv_delay
1273 Add vbv_delay field to AVCodecContext
1275 2011-02-14 - 24a83bd - lavf 52.100.0 - AV_DISPOSITION_CLEAN_EFFECTS
1276 Add AV_DISPOSITION_CLEAN_EFFECTS disposition flag.
1278 2011-02-14 - 910b5b8 - lavfi 1.76.0 - AVFilterLink sample_aspect_ratio
1279 Add sample_aspect_ratio field to AVFilterLink.
1281 2011-02-10 - 12c14cd - lavf 52.99.0 - AVStream.disposition
1282 Add AV_DISPOSITION_HEARING_IMPAIRED and AV_DISPOSITION_VISUAL_IMPAIRED.
1284 2011-02-09 - c0b102c - lavc 52.112.0 - avcodec_thread_init()
1285 Deprecate avcodec_thread_init()/avcodec_thread_free() use; instead
1286 set thread_count before calling avcodec_open.
1288 2011-02-09 - 37b00b4 - lavc 52.111.0 - threading API
1289 Add CODEC_CAP_FRAME_THREADS with new restrictions on get_buffer()/
1290 release_buffer()/draw_horiz_band() callbacks for appropriate codecs.
1291 Add thread_type and active_thread_type fields to AVCodecContext.
1293 2011-02-08 - 3940caa - lavf 52.98.0 - av_probe_input_buffer
1294 Add av_probe_input_buffer() to avformat.h for probing format from a
1297 2011-02-06 - fe174fc - lavf 52.97.0 - avio.h
1298 Add flag for non-blocking protocols: URL_FLAG_NONBLOCK
1300 2011-02-04 - f124b08 - lavf 52.96.0 - avformat_free_context()
1301 Add avformat_free_context() in avformat.h.
1303 2011-02-03 - f5b82f4 - lavc 52.109.0 - add CODEC_ID_PRORES
1304 Add CODEC_ID_PRORES to avcodec.h.
1306 2011-02-03 - fe9a3fb - lavc 52.109.0 - H.264 profile defines
1307 Add defines for H.264 * Constrained Baseline and Intra profiles
1309 2011-02-02 - lavf 52.95.0
1310 * 50196a9 - add a new installed header version.h.
1311 * 4efd5cf, dccbd97, 93b78d1 - add several variants of public
1312 avio_{put,get}_str* functions. Deprecate corresponding semi-public
1315 2011-02-02 - dfd2a00 - lavu 50.37.0 - log.h
1316 Make av_dlog public.
1318 2011-01-31 - 7b3ea55 - lavfi 1.76.0 - vsrc_buffer
1319 Add sample_aspect_ratio fields to vsrc_buffer arguments
1321 2011-01-31 - 910b5b8 - lavfi 1.75.0 - AVFilterLink sample_aspect_ratio
1322 Add sample_aspect_ratio field to AVFilterLink.
1324 2011-01-15 - a242ac3 - lavfi 1.74.0 - AVFilterBufferRefAudioProps
1325 Rename AVFilterBufferRefAudioProps.samples_nb to nb_samples.
1327 2011-01-14 - 7f88a5b - lavf 52.93.0 - av_metadata_copy()
1328 Add av_metadata_copy() in avformat.h.
1330 2011-01-07 - 81c623f - lavc 52.107.0 - deprecate reordered_opaque
1331 Deprecate reordered_opaque in favor of pkt_pts/dts.
1333 2011-01-07 - 1919fea - lavc 52.106.0 - pkt_dts
1334 Add pkt_dts to AVFrame, this will in the future allow multithreading decoders
1337 2011-01-07 - 393cbb9 - lavc 52.105.0 - pkt_pts
1338 Add pkt_pts to AVFrame.
1340 2011-01-07 - 060ec0a - lavc 52.104.0 - av_get_profile_name()
1341 Add av_get_profile_name to libavcodec/avcodec.h.
1343 2010-12-27 - 0ccabee - lavfi 1.71.0 - AV_PERM_NEG_LINESIZES
1344 Add AV_PERM_NEG_LINESIZES in avfilter.h.
1346 2010-12-27 - 9128ae0 - lavf 52.91.0 - av_find_best_stream()
1347 Add av_find_best_stream to libavformat/avformat.h.
1349 2010-12-27 - 107a7e3 - lavf 52.90.0
1350 Add AVFMT_NOSTREAMS flag for formats with no streams,
1351 like e.g. text metadata.
1353 2010-12-22 - 0328b9e - lavu 50.36.0 - file.h
1354 Add functions av_file_map() and av_file_unmap() in file.h.
1356 2010-12-19 - 0bc55f5 - lavu 50.35.0 - error.h
1357 Add "not found" error codes:
1358 AVERROR_DEMUXER_NOT_FOUND
1359 AVERROR_MUXER_NOT_FOUND
1360 AVERROR_DECODER_NOT_FOUND
1361 AVERROR_ENCODER_NOT_FOUND
1362 AVERROR_PROTOCOL_NOT_FOUND
1363 AVERROR_FILTER_NOT_FOUND
1364 AVERROR_BSF_NOT_FOUND
1365 AVERROR_STREAM_NOT_FOUND
1367 2010-12-09 - c61cdd0 - lavcore 0.16.0 - avcore.h
1368 Move AV_NOPTS_VALUE, AV_TIME_BASE, AV_TIME_BASE_Q symbols from
1369 avcodec.h to avcore.h.
1371 2010-12-04 - 16cfc96 - lavc 52.98.0 - CODEC_CAP_NEG_LINESIZES
1372 Add CODEC_CAP_NEG_LINESIZES codec capability flag in avcodec.h.
1374 2010-12-04 - bb4afa1 - lavu 50.34.0 - av_get_pix_fmt_string()
1375 Deprecate avcodec_pix_fmt_string() in favor of
1376 pixdesc.h/av_get_pix_fmt_string().
1378 2010-12-04 - 4da12e3 - lavcore 0.15.0 - av_image_alloc()
1379 Add av_image_alloc() to libavcore/imgutils.h.
1381 2010-12-02 - 037be76 - lavfi 1.67.0 - avfilter_graph_create_filter()
1382 Add function avfilter_graph_create_filter() in avfiltergraph.h.
1384 2010-11-25 - 4723bc2 - lavfi 1.65.0 - avfilter_get_video_buffer_ref_from_arrays()
1385 Add function avfilter_get_video_buffer_ref_from_arrays() in
1388 2010-11-21 - 176a615 - lavcore 0.14.0 - audioconvert.h
1389 Add a public audio channel API in audioconvert.h, and deprecate the
1390 corresponding functions in libavcodec:
1391 avcodec_get_channel_name()
1392 avcodec_get_channel_layout()
1393 avcodec_get_channel_layout_string()
1394 avcodec_channel_layout_num_channels()
1395 and the CH_* macros defined in libavcodec/avcodec.h.
1397 2010-11-21 - 6bfc268 - lavf 52.85.0 - avformat.h
1398 Add av_append_packet().
1400 2010-11-21 - a08d918 - lavc 52.97.0 - avcodec.h
1401 Add av_grow_packet().
1403 2010-11-17 - 0985e1a - lavcore 0.13.0 - parseutils.h
1404 Add av_parse_color() declared in libavcore/parseutils.h.
1406 2010-11-13 - cb2c971 - lavc 52.95.0 - AVCodecContext
1407 Add AVCodecContext.subtitle_header and AVCodecContext.subtitle_header_size
1410 2010-11-13 - 5aaea02 - lavfi 1.62.0 - avfiltergraph.h
1411 Make avfiltergraph.h public.
1413 2010-11-13 - 4fcbb2a - lavfi 1.61.0 - avfiltergraph.h
1414 Remove declarations from avfiltergraph.h for the functions:
1415 avfilter_graph_check_validity()
1416 avfilter_graph_config_links()
1417 avfilter_graph_config_formats()
1418 which are now internal.
1419 Use avfilter_graph_config() instead.
1421 2010-11-08 - d2af720 - lavu 50.33.0 - eval.h
1422 Deprecate functions:
1423 av_parse_and_eval_expr(),
1427 in favor of the functions:
1428 av_expr_parse_and_eval(),
1433 2010-11-08 - 24de0ed - lavfi 1.59.0 - avfilter_free()
1434 Rename avfilter_destroy() to avfilter_free().
1435 This change breaks libavfilter API/ABI.
1437 2010-11-07 - 1e80a0e - lavfi 1.58.0 - avfiltergraph.h
1438 Remove graphparser.h header, move AVFilterInOut and
1439 avfilter_graph_parse() declarations to libavfilter/avfiltergraph.h.
1441 2010-11-07 - 7313132 - lavfi 1.57.0 - AVFilterInOut
1442 Rename field AVFilterInOut.filter to AVFilterInOut.filter_ctx.
1443 This change breaks libavfilter API.
1445 2010-11-04 - 97dd1e4 - lavfi 1.56.0 - avfilter_graph_free()
1446 Rename avfilter_graph_destroy() to avfilter_graph_free().
1447 This change breaks libavfilter API/ABI.
1449 2010-11-04 - e15aeea - lavfi 1.55.0 - avfilter_graph_alloc()
1450 Add avfilter_graph_alloc() to libavfilter/avfiltergraph.h.
1452 2010-11-02 - 6f84cd1 - lavcore 0.12.0 - av_get_bits_per_sample_fmt()
1453 Add av_get_bits_per_sample_fmt() to libavcore/samplefmt.h and
1454 deprecate av_get_bits_per_sample_format().
1456 2010-11-02 - d63e456 - lavcore 0.11.0 - samplefmt.h
1457 Add sample format functions in libavcore/samplefmt.h:
1458 av_get_sample_fmt_name(),
1459 av_get_sample_fmt(),
1460 av_get_sample_fmt_string(),
1461 and deprecate the corresponding libavcodec/audioconvert.h functions:
1462 avcodec_get_sample_fmt_name(),
1463 avcodec_get_sample_fmt(),
1464 avcodec_sample_fmt_string().
1466 2010-11-02 - 262d1c5 - lavcore 0.10.0 - samplefmt.h
1467 Define enum AVSampleFormat in libavcore/samplefmt.h, deprecate enum
1470 2010-10-16 - 2a24df9 - lavfi 1.52.0 - avfilter_graph_config()
1471 Add the function avfilter_graph_config() in avfiltergraph.h.
1473 2010-10-15 - 03700d3 - lavf 52.83.0 - metadata API
1474 Change demuxers to export metadata in generic format and
1475 muxers to accept generic format. Deprecate the public
1478 2010-10-10 - 867ae7a - lavfi 1.49.0 - AVFilterLink.time_base
1479 Add time_base field to AVFilterLink.
1481 2010-09-27 - c85eef4 - lavu 50.31.0 - av_set_options_string()
1482 Move av_set_options_string() from libavfilter/parseutils.h to
1485 2010-09-27 - acc0490 - lavfi 1.47.0 - AVFilterLink
1486 Make the AVFilterLink fields srcpad and dstpad store the pointers to
1487 the source and destination pads, rather than their indexes.
1489 2010-09-27 - 372e288 - lavu 50.30.0 - av_get_token()
1490 Move av_get_token() from libavfilter/parseutils.h to
1491 libavutil/avstring.h.
1493 2010-09-26 - 635d4ae - lsws 0.12.0 - swscale.h
1494 Add the functions sws_alloc_context() and sws_init_context().
1496 2010-09-26 - 6ed0404 - lavu 50.29.0 - opt.h
1497 Move libavcodec/opt.h to libavutil/opt.h.
1499 2010-09-24 - 1c1c80f - lavu 50.28.0 - av_log_set_flags()
1500 Default of av_log() changed due to many problems to the old no repeat
1501 detection. Read the docs of AV_LOG_SKIP_REPEATED in log.h before
1502 enabling it for your app!.
1504 2010-09-24 - f66eb58 - lavc 52.90.0 - av_opt_show2()
1505 Deprecate av_opt_show() in favor or av_opt_show2().
1507 2010-09-14 - bc6f0af - lavu 50.27.0 - av_popcount()
1508 Add av_popcount() to libavutil/common.h.
1510 2010-09-08 - c6c98d0 - lavu 50.26.0 - av_get_cpu_flags()
1511 Add av_get_cpu_flags().
1513 2010-09-07 - 34017fd - lavcore 0.9.0 - av_image_copy()
1514 Add av_image_copy().
1516 2010-09-07 - 9686abb - lavcore 0.8.0 - av_image_copy_plane()
1517 Add av_image_copy_plane().
1519 2010-09-07 - 9b7269e - lavcore 0.7.0 - imgutils.h
1520 Adopt hierarchical scheme for the imgutils.h function names,
1521 deprecate the old names.
1523 2010-09-04 - 7160bb7 - lavu 50.25.0 - AV_CPU_FLAG_*
1524 Deprecate the FF_MM_* flags defined in libavcodec/avcodec.h in favor
1525 of the AV_CPU_FLAG_* flags defined in libavutil/cpu.h.
1527 2010-08-26 - 5da19b5 - lavc 52.87.0 - avcodec_get_channel_layout()
1528 Add avcodec_get_channel_layout() in audioconvert.h.
1530 2010-08-20 - e344336 - lavcore 0.6.0 - av_fill_image_max_pixsteps()
1531 Rename av_fill_image_max_pixstep() to av_fill_image_max_pixsteps().
1533 2010-08-18 - a6ddf8b - lavcore 0.5.0 - av_fill_image_max_pixstep()
1534 Add av_fill_image_max_pixstep() in imgutils.h.
1536 2010-08-17 - 4f2d2e4 - lavu 50.24.0 - AV_NE()
1537 Add the AV_NE macro.
1539 2010-08-17 - ad2c950 - lavfi 1.36.0 - audio framework
1540 Implement AVFilterBufferRefAudioProps struct for audio properties,
1541 get_audio_buffer(), filter_samples() functions and related changes.
1543 2010-08-12 - 81c1eca - lavcore 0.4.0 - av_get_image_linesize()
1544 Add av_get_image_linesize() in imgutils.h.
1546 2010-08-11 - c1db7bf - lavfi 1.34.0 - AVFilterBufferRef
1547 Resize data and linesize arrays in AVFilterBufferRef to 8.
1549 This change breaks libavfilter API/ABI.
1551 2010-08-11 - 9f08d80 - lavc 52.85.0 - av_picture_data_copy()
1552 Add av_picture_data_copy in avcodec.h.
1554 2010-08-11 - 84c0386 - lavfi 1.33.0 - avfilter_open()
1555 Change avfilter_open() signature:
1556 AVFilterContext *avfilter_open(AVFilter *filter, const char *inst_name) ->
1557 int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);
1559 This change breaks libavfilter API/ABI.
1561 2010-08-11 - cc80caf - lavfi 1.32.0 - AVFilterBufferRef
1562 Add a type field to AVFilterBufferRef, and move video specific
1563 properties to AVFilterBufferRefVideoProps.
1565 This change breaks libavfilter API/ABI.
1567 2010-08-07 - 5d4890d - lavfi 1.31.0 - AVFilterLink
1568 Rename AVFilterLink fields:
1569 AVFilterLink.srcpic -> AVFilterLink.src_buf
1570 AVFilterLink.cur_pic -> AVFilterLink.cur_buf
1571 AVFilterLink.outpic -> AVFilterLink.out_buf
1573 2010-08-07 - 7fce481 - lavfi 1.30.0
1574 Rename functions and fields:
1575 avfilter_(un)ref_pic -> avfilter_(un)ref_buffer
1576 avfilter_copy_picref_props -> avfilter_copy_buffer_ref_props
1577 AVFilterBufferRef.pic -> AVFilterBufferRef.buffer
1579 2010-08-07 - ecc8dad - lavfi 1.29.0 - AVFilterBufferRef
1580 Rename AVFilterPicRef to AVFilterBufferRef.
1582 2010-08-07 - d54e094 - lavfi 1.28.0 - AVFilterBuffer
1583 Move format field from AVFilterBuffer to AVFilterPicRef.
1585 2010-08-06 - bf176f5 - lavcore 0.3.0 - av_check_image_size()
1586 Deprecate avcodec_check_dimensions() in favor of the function
1587 av_check_image_size() defined in libavcore/imgutils.h.
1589 2010-07-30 - 56b5e9d - lavfi 1.27.0 - AVFilterBuffer
1590 Increase size of the arrays AVFilterBuffer.data and
1591 AVFilterBuffer.linesize from 4 to 8.
1593 This change breaks libavfilter ABI.
1595 2010-07-29 - e7bd48a - lavcore 0.2.0 - imgutils.h
1596 Add functions av_fill_image_linesizes() and
1597 av_fill_image_pointers(), declared in libavcore/imgutils.h.
1599 2010-07-27 - 126b638 - lavcore 0.1.0 - parseutils.h
1600 Deprecate av_parse_video_frame_size() and av_parse_video_frame_rate()
1601 defined in libavcodec in favor of the newly added functions
1602 av_parse_video_size() and av_parse_video_rate() declared in
1603 libavcore/parseutils.h.
1605 2010-07-23 - 4485247 - lavu 50.23.0 - mathematics.h
1606 Add the M_PHI constant definition.
1608 2010-07-22 - bdab614 - lavfi 1.26.0 - media format generalization
1609 Add a type field to AVFilterLink.
1611 Change the field types:
1612 enum PixelFormat format -> int format in AVFilterBuffer
1613 enum PixelFormat *formats -> int *formats in AVFilterFormats
1614 enum PixelFormat *format -> int format in AVFilterLink
1616 Change the function signatures:
1617 AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts); ->
1618 AVFilterFormats *avfilter_make_format_list(const int *fmts);
1620 int avfilter_add_colorspace(AVFilterFormats **avff, enum PixelFormat pix_fmt); ->
1621 int avfilter_add_format (AVFilterFormats **avff, int fmt);
1623 AVFilterFormats *avfilter_all_colorspaces(void); ->
1624 AVFilterFormats *avfilter_all_formats (enum AVMediaType type);
1626 This change breaks libavfilter API/ABI.
1628 2010-07-21 - aac6ca6 - lavcore 0.0.0
1631 2010-07-17 - b5c582f - lavfi 1.25.0 - AVFilterBuffer
1632 Remove w and h fields from AVFilterBuffer.
1634 2010-07-17 - f0d77b2 - lavfi 1.24.0 - AVFilterBuffer
1635 Rename AVFilterPic to AVFilterBuffer.
1637 2010-07-17 - 57fe80f - lavf 52.74.0 - url_fskip()
1638 Make url_fskip() return an int error code instead of void.
1640 2010-07-11 - 23940f1 - lavc 52.83.0
1641 Add AVCodecContext.lpc_type and AVCodecContext.lpc_passes fields.
1643 Deprecate AVCodecContext.use_lpc.
1645 2010-07-11 - e1d7c88 - lavc 52.82.0 - avsubtitle_free()
1646 Add a function for free the contents of a AVSubtitle generated by
1647 avcodec_decode_subtitle.
1649 2010-07-11 - b91d08f - lavu 50.22.0 - bswap.h and intreadwrite.h
1650 Make the bswap.h and intreadwrite.h API public.
1652 2010-07-08 - ce1cd1c - lavu 50.21.0 - pixdesc.h
1653 Rename read/write_line() to av_read/write_image_line().
1655 2010-07-07 - 4d508e4 - lavfi 1.21.0 - avfilter_copy_picref_props()
1656 Add avfilter_copy_picref_props().
1658 2010-07-03 - 2d525ef - lavc 52.79.0
1659 Add FF_COMPLIANCE_UNOFFICIAL and change all instances of
1660 FF_COMPLIANCE_INOFFICIAL to use FF_COMPLIANCE_UNOFFICIAL.
1662 2010-07-02 - 89eec74 - lavu 50.20.0 - lfg.h
1663 Export av_lfg_init(), av_lfg_get(), av_mlfg_get(), and av_bmg_get() through
1666 2010-06-28 - a52e2c3 - lavfi 1.20.1 - av_parse_color()
1667 Extend av_parse_color() syntax, make it accept an alpha value specifier and
1668 set the alpha value to 255 by default.
1670 2010-06-22 - 735cf6b - lavf 52.71.0 - URLProtocol.priv_data_size, priv_data_class
1671 Add priv_data_size and priv_data_class to URLProtocol.
1673 2010-06-22 - ffbb289 - lavf 52.70.0 - url_alloc(), url_connect()
1674 Add url_alloc() and url_connect().
1676 2010-06-22 - 9b07a2d - lavf 52.69.0 - av_register_protocol2()
1677 Add av_register_protocol2(), deprecating av_register_protocol().
1679 2010-06-09 - 65db058 - lavu 50.19.0 - av_compare_mod()
1680 Add av_compare_mod() to libavutil/mathematics.h.
1682 2010-06-05 - 0b99215 - lavu 50.18.0 - eval API
1683 Make the eval API public.
1685 2010-06-04 - 31878fc - lavu 50.17.0 - AV_BASE64_SIZE
1686 Add AV_BASE64_SIZE() macro.
1688 2010-06-02 - 7e566bb - lavc 52.73.0 - av_get_codec_tag_string()
1689 Add av_get_codec_tag_string().
1691 2010-06-01 - 2b99142 - lsws 0.11.0 - convertPalette API
1692 Add sws_convertPalette8ToPacked32() and sws_convertPalette8ToPacked24().
1694 2010-05-26 - 93ebfee - lavc 52.72.0 - CODEC_CAP_EXPERIMENTAL
1695 Add CODEC_CAP_EXPERIMENTAL flag.
1696 NOTE: this was backported to 0.6
1698 2010-05-23 - 9977863 - lavu 50.16.0 - av_get_random_seed()
1699 Add av_get_random_seed().
1701 2010-05-18 - 796ac23 - lavf 52.63.0 - AVFMT_FLAG_RTP_HINT
1702 Add AVFMT_FLAG_RTP_HINT as possible value for AVFormatContext.flags.
1703 NOTE: this was backported to 0.6
1705 2010-05-09 - b6bc205 - lavfi 1.20.0 - AVFilterPicRef
1706 Add interlaced and top_field_first fields to AVFilterPicRef.
1708 ------------------------------8<-------------------------------------
1709 0.6 branch was cut here
1710 ----------------------------->8--------------------------------------
1712 2010-05-01 - 8e2ee18 - lavf 52.62.0 - probe function
1713 Add av_probe_input_format2 to API, it allows ignoring probe
1714 results below given score and returns the actual probe score.
1716 2010-04-01 - 3dd6180 - lavf 52.61.0 - metadata API
1717 Add a flag for av_metadata_set2() to disable overwriting of
1720 2010-04-01 - 0fb49b5 - lavc 52.66.0
1721 Add avcodec_get_edge_width().
1723 2010-03-31 - d103218 - lavc 52.65.0
1724 Add avcodec_copy_context().
1726 2010-03-31 - 1a70d12 - lavf 52.60.0 - av_match_ext()
1727 Make av_match_ext() public.
1729 2010-03-31 - 1149150 - lavu 50.14.0 - AVMediaType
1730 Move AVMediaType enum from libavcodec to libavutil.
1732 2010-03-31 - 72415b2 - lavc 52.64.0 - AVMediaType
1733 Define AVMediaType enum, and use it instead of enum CodecType, which
1734 is deprecated and will be dropped at the next major bump.
1736 2010-03-25 - 8795823 - lavu 50.13.0 - av_strerror()
1737 Implement av_strerror().
1739 2010-03-23 - e1484eb - lavc 52.60.0 - av_dct_init()
1740 Support DCT-I and DST-I.
1742 2010-03-15 - b8819c8 - lavf 52.56.0 - AVFormatContext.start_time_realtime
1743 Add AVFormatContext.start_time_realtime field.
1745 2010-03-13 - 5bb5c1d - lavfi 1.18.0 - AVFilterPicRef.pos
1746 Add AVFilterPicRef.pos field.
1748 2010-03-13 - 60c144f - lavu 50.12.0 - error.h
1749 Move error code definitions from libavcodec/avcodec.h to
1750 the new public header libavutil/error.h.
1752 2010-03-07 - c709483 - lavc 52.56.0 - avfft.h
1753 Add public FFT interface.
1755 2010-03-06 - ac6ef86 - lavu 50.11.0 - av_stristr()
1758 2010-03-03 - 4b83fc0 - lavu 50.10.0 - av_tree_enumerate()
1759 Add av_tree_enumerate().
1761 2010-02-07 - b687c1a - lavu 50.9.0 - av_compare_ts()
1762 Add av_compare_ts().
1764 2010-02-05 - 3f3dc76 - lsws 0.10.0 - sws_getCoefficients()
1765 Add sws_getCoefficients().
1767 2010-02-01 - ca76a11 - lavf 52.50.0 - metadata API
1768 Add a list of generic tag names, change 'author' -> 'artist',
1771 2010-01-30 - 80a07f6 - lavu 50.8.0 - av_get_pix_fmt()
1772 Add av_get_pix_fmt().
1774 2010-01-21 - 01cc47d - lsws 0.9.0 - sws_scale()
1775 Change constness attributes of sws_scale() parameters.
1777 2010-01-10 - 3fb8e77 - lavfi 1.15.0 - avfilter_graph_config_links()
1778 Add a log_ctx parameter to avfilter_graph_config_links().
1780 2010-01-07 - 8e9767f - lsws 0.8.0 - sws_isSupported{In,Out}put()
1781 Add sws_isSupportedInput() and sws_isSupportedOutput() functions.
1783 2010-01-06 - c1d662f - lavfi 1.14.0 - avfilter_add_colorspace()
1784 Change the avfilter_add_colorspace() signature, make it accept an
1785 (AVFilterFormats **) rather than an (AVFilterFormats *) as before.
1787 2010-01-03 - 4fd1f18 - lavfi 1.13.0 - avfilter_add_colorspace()
1788 Add avfilter_add_colorspace().
1790 2010-01-02 - 8eb631f - lavf 52.46.0 - av_match_ext()
1791 Add av_match_ext(), it should be used in place of match_ext().
1793 2010-01-01 - a1f547b - lavf 52.45.0 - av_guess_format()
1794 Add av_guess_format(), it should be used in place of guess_format().
1796 2009-12-13 - a181981 - lavf 52.43.0 - metadata API
1797 Add av_metadata_set2(), AV_METADATA_DONT_STRDUP_KEY and
1798 AV_METADATA_DONT_STRDUP_VAL.
1800 2009-12-13 - 277c733 - lavu 50.7.0 - avstring.h API
1803 2009-12-13 - 02b398e - lavc 52.42.0 - AVStream
1806 2009-12-12 - 3ba69a1 - lavu 50.6.0 - av_bmg_next()
1807 Introduce the av_bmg_next() function.
1809 2009-12-05 - a13a543 - lavfi 1.12.0 - avfilter_draw_slice()
1810 Add a slice_dir parameter to avfilter_draw_slice().
1812 2009-11-26 - 4cc3f6a - lavfi 1.11.0 - AVFilter
1813 Remove the next field from AVFilter, this is not anymore required.
1815 2009-11-25 - 1433c4a - lavfi 1.10.0 - avfilter_next()
1816 Introduce the avfilter_next() function.
1818 2009-11-25 - 86a60fa - lavfi 1.9.0 - avfilter_register()
1819 Change the signature of avfilter_register() to make it return an
1820 int. This is required since now the registration operation may fail.
1822 2009-11-25 - 74a0059 - lavu 50.5.0 - pixdesc.h API
1823 Make the pixdesc.h API public.
1825 2009-10-27 - 243110f - lavfi 1.5.0 - AVFilter.next
1826 Add a next field to AVFilter, this is used for simplifying the
1827 registration and management of the registered filters.
1829 2009-10-23 - cccd292 - lavfi 1.4.1 - AVFilter.description
1830 Add a description field to AVFilter.
1832 2009-10-19 - 6b5dc05 - lavfi 1.3.0 - avfilter_make_format_list()
1833 Change the interface of avfilter_make_format_list() from
1834 avfilter_make_format_list(int n, ...) to
1835 avfilter_make_format_list(enum PixelFormat *pix_fmts).
1837 2009-10-18 - 0eb4ff9 - lavfi 1.0.0 - avfilter_get_video_buffer()
1838 Make avfilter_get_video_buffer() recursive and add the w and h
1841 2009-10-07 - 46c40e4 - lavfi 0.5.1 - AVFilterPic
1842 Add w and h fields to AVFilterPic.
1844 2009-06-22 - 92400be - lavf 52.34.1 - AVFormatContext.packet_size
1845 This is now an unsigned int instead of a signed int.
1847 2009-06-19 - a4276ba - lavc 52.32.0 - AVSubtitle.pts
1848 Add a pts field to AVSubtitle which gives the subtitle packet pts
1849 in AV_TIME_BASE. Some subtitle de-/encoders (e.g. XSUB) will
1850 not work right without this.
1852 2009-06-03 - 8f3f2e0 - lavc 52.30.2 - AV_PKT_FLAG_KEY
1853 PKT_FLAG_KEY has been deprecated and will be dropped at the next
1854 major version. Use AV_PKT_FLAG_KEY instead.
1856 2009-06-01 - f988ce6 - lavc 52.30.0 - av_lockmgr_register()
1857 av_lockmgr_register() can be used to register a callback function
1858 that lavc (and in the future, libraries that depend on lavc) can use
1859 to implement mutexes. The application should provide a callback function
1860 that implements the AV_LOCK_* operations described in avcodec.h.
1861 When the lock manager is registered, FFmpeg is guaranteed to behave
1862 correctly in a multi-threaded application.
1864 2009-04-30 - ce1d9c8 - lavc 52.28.0 - av_free_packet()
1865 av_free_packet() is no longer an inline function. It is now exported.
1867 2009-04-11 - 80d403f - lavc 52.25.0 - deprecate av_destruct_packet_nofree()
1868 Please use NULL instead. This has been supported since r16506
1869 (lavf > 52.23.1, lavc > 52.10.0).
1871 2009-04-07 - 7a00bba - lavc 52.23.0 - avcodec_decode_video/audio/subtitle
1872 The old decoding functions are deprecated, all new code should use the
1873 new functions avcodec_decode_video2(), avcodec_decode_audio3() and
1874 avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt
1875 argument instead of a const uint8_t *buf / int buf_size pair.
1877 2009-04-03 - 7b09db3 - lavu 50.3.0 - av_fifo_space()
1878 Introduce the av_fifo_space() function.
1880 2009-04-02 - fabd246 - lavc 52.23.0 - AVPacket
1881 Move AVPacket declaration from libavformat/avformat.h to
1882 libavcodec/avcodec.h.
1884 2009-03-22 - 6e08ca9 - lavu 50.2.0 - RGB32 pixel formats
1885 Convert the pixel formats PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR,
1886 PIX_FMT_BGRA, which were defined as macros, into enum PixelFormat values.
1887 Conversely PIX_FMT_RGB32, PIX_FMT_RGB32_1, PIX_FMT_BGR32 and
1888 PIX_FMT_BGR32_1 are now macros.
1889 avcodec_get_pix_fmt() now recognizes the "rgb32" and "bgr32" aliases.
1890 Re-sort the enum PixelFormat list accordingly.
1891 This change breaks API/ABI backward compatibility.
1893 2009-03-22 - f82674e - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants
1894 Add the enum PixelFormat values:
1895 PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,
1896 PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.
1898 2009-03-21 - ee6624e - lavu 50.0.0 - av_random*
1899 The Mersenne Twister PRNG implemented through the av_random* functions
1900 was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions
1903 2009-03-08 - 41dd680 - lavu 50.0.0 - AVFifoBuffer
1904 av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped
1905 and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write
1906 and av_fifo_realloc2.
1907 In addition, the order of the function arguments of av_fifo_generic_read
1908 was changed to match av_fifo_generic_write.
1909 The AVFifoBuffer/struct AVFifoBuffer may only be used in an opaque way by
1910 applications, they may not use sizeof() or directly access members.
1912 2009-03-01 - ec26457 - lavf 52.31.0 - Generic metadata API
1913 Introduce a new metadata API (see av_metadata_get() and friends).
1914 The old API is now deprecated and should not be used anymore. This especially
1915 includes the following structure fields:
1916 - AVFormatContext.title
1917 - AVFormatContext.author
1918 - AVFormatContext.copyright
1919 - AVFormatContext.comment
1920 - AVFormatContext.album
1921 - AVFormatContext.year
1922 - AVFormatContext.track
1923 - AVFormatContext.genre
1926 - AVProgram.provider_name