1 Never assume the API of libav* to be stable unless at least 1 month has passed
2 since the last major version increase.
4 The last version increases were:
6 libavdevice: 2011-04-18
7 libavfilter: 2012-06-22
8 libavformat: 2012-01-27
9 libavresample: 2012-04-24
10 libpostproc: 2011-04-18
11 libswresample: 2011-09-19
12 libswscale: 2011-06-20
16 API changes, most recent first:
18 2012-10-21 - xxxxxxx - lavc 54.68.100 - avcodec.h
19 lavfi 3.20.100 - avfilter.h
20 Add AV_PKT_DATA_STRINGS_METADATA side data type, used to transmit key/value
21 strings between AVPacket and AVFrame, and add metadata field to
22 AVCodecContext (which shall not be accessed by users; see AVFrame metadata
25 2012-09-27 - a70b493 - lavd 54.3.100 - version.h
26 Add LIBAVDEVICE_IDENT symbol.
28 2012-09-27 - a70b493 - lavfi 3.18.100 - version.h
29 Add LIBAVFILTER_IDENT symbol.
31 2012-09-27 - a70b493 - libswr 0.16.100 - version.h
32 Add LIBSWRESAMPLE_VERSION, LIBSWRESAMPLE_BUILD
33 and LIBSWRESAMPLE_IDENT symbols.
35 2012-09-06 - 29e972f - lavu 51.72.100 - parseutils.h
36 Add av_small_strptime() time parsing function.
38 Can be used as a stripped-down replacement for strptime(), on
39 systems which do not support it.
41 2012-08-25 - 2626cc4 - lavf 54.28.100
42 Matroska demuxer now identifies SRT subtitles as AV_CODEC_ID_SUBRIP instead
45 2012-08-13 - 5c0d8bc - lavfi 3.8.100 - avfilter.h
46 Add avfilter_get_class() function, and priv_class field to AVFilter
49 2012-08-12 - a25346e - lavu 51.69.100 - opt.h
50 Add AV_OPT_FLAG_FILTERING_PARAM symbol in opt.h.
52 2012-07-31 - 23fc4dd - lavc 54.46.100
53 Add channels field to AVFrame.
55 2012-07-30 - f893904 - lavu 51.66.100
56 Add av_get_channel_description()
57 and av_get_standard_channel_layout() functions.
59 2012-07-21 - 016a472 - lavc 54.43.100
60 Add decode_error_flags field to AVFrame.
62 2012-07-20 - b062936 - lavf 54.18.100
63 Add avformat_match_stream_specifier() function.
65 2012-07-14 - f49ec1b - lavc 54.38.100 - avcodec.h
66 Add metadata to AVFrame, and the accessor functions
67 av_frame_get_metadata() and av_frame_set_metadata().
69 2012-07-10 - 0e003d8 - lavc 54.33.100
70 Add av_fast_padded_mallocz().
72 2012-07-10 - 21d5609 - lavfi 3.2.0 - avfilter.h
73 Add init_opaque() callback to AVFilter struct.
75 2012-06-26 - e6674e4 - lavu 51.63.100 - imgutils.h
76 Add functions to libavutil/imgutils.h:
77 av_image_get_buffer_size()
78 av_image_fill_arrays()
79 av_image_copy_to_buffer()
81 2012-06-24 - c41899a - lavu 51.62.100 - version.h
82 version moved from avutil.h to version.h
84 2012-04-11 - 359abb1 - lavu 51.58.100 - error.h
85 Add av_make_error_string() and av_err2str() utilities to
88 2012-06-05 - 62b39d4 - lavc 54.24.100
89 Add pkt_duration field to AVFrame.
91 2012-05-24 - f2ee065 - lavu 51.54.100
92 Move AVPALETTE_SIZE and AVPALETTE_COUNT macros from
93 libavcodec/avcodec.h to libavutil/pixfmt.h.
95 2012-05-14 - 94a9ac1 - lavf 54.5.100
96 Add av_guess_sample_aspect_ratio() function.
98 2012-04-20 - 65fa7bc - lavfi 2.70.100
99 Add avfilter_unref_bufferp() to avfilter.h.
101 2012-04-13 - 162e400 - lavfi 2.68.100
102 Install libavfilter/asrc_abuffer.h public header.
104 2012-03-26 - a67d9cf - lavfi 2.66.100
105 Add avfilter_fill_frame_from_{audio_,}buffer_ref() functions.
107 2012-10-12 - xxxxxxx - lavu 51.44.0 - pixdesc.h
108 Add functions for accessing pixel format descriptors.
109 Accessing the av_pix_fmt_descriptors array directly is now
112 2012-10-xx - xxxxxxx - lavu 51.43.0 - aes.h, md5.h, sha.h, tree.h
113 Add functions for allocating the opaque contexts for the algorithms,
114 deprecate the context size variables.
116 2012-10-xx - xxxxxxx - lavf 54.18.0 - avio.h
117 Add avio_closep to complement avio_close.
119 2012-10-xx - xxxxxxx - lavu 51.42.0 - pixfmt.h
120 Rename PixelFormat to AVPixelFormat and all PIX_FMT_* to AV_PIX_FMT_*.
121 To provide backwards compatibility, PixelFormat is now #defined as
123 Note that this can break user code that includes pixfmt.h and uses the
124 'PixelFormat' identifier. Such code should either #undef PixelFormat
125 or stop using the PixelFormat name.
127 2012-10-05 - e7ba5b1 - lavr 1.0.0 - avresample.h
128 Data planes parameters to avresample_convert() and
129 avresample_read() are now uint8_t** instead of void**.
130 Libavresample is now stable.
132 2012-09-24 - a42aada - lavc 54.28.0 - avcodec.h
133 Add avcodec_free_frame(). This function must now
134 be used for freeing an AVFrame.
136 2012-09-12 - 8919fee - lavu 51.41.0 - audioconvert.h
137 Added AV_CH_LOW_FREQUENCY_2 channel mask value.
139 2012-09-04 - 686a329 - lavu 51.40.0 - opt.h
140 Reordered the fields in default_val in AVOption, changed which
141 default_val field is used for which AVOptionType.
143 2012-08-30 - a231832 - lavc 54.26.1 - avcodec.h
144 Add codec descriptor properties AV_CODEC_PROP_LOSSY and
145 AV_CODEC_PROP_LOSSLESS.
147 2012-08-18 - lavc 54.26 - avcodec.h
148 Add codec descriptors for accessing codec properties without having
149 to refer to a specific decoder or encoder.
151 c223d79 - Add an AVCodecDescriptor struct and functions
152 avcodec_descriptor_get() and avcodec_descriptor_next().
153 51efed1 - Add AVCodecDescriptor.props and AV_CODEC_PROP_INTRA_ONLY.
154 91e59fe - Add avcodec_descriptor_get_by_name().
156 2012-08-08 - 987170c - lavu 51.38 - dict.h
159 2012-08-07 - 104e10f - lavc 54.25 - avcodec.h
160 Rename CodecID to AVCodecID and all CODEC_ID_* to AV_CODEC_ID_*.
161 To provide backwards compatibility, CodecID is now #defined as AVCodecID.
162 Note that this can break user code that includes avcodec.h and uses the
163 'CodecID' identifier. Such code should either #undef CodecID or stop using the
166 2012-08-03 - 239fdf1 - lavu 51.37.1 - cpu.h
167 lsws 2.1.1 - swscale.h
168 Rename AV_CPU_FLAG_MMX2 ---> AV_CPU_FLAG_MMXEXT.
169 Rename SWS_CPU_CAPS_MMX2 ---> SWS_CPU_CAPS_MMXEXT.
171 2012-07-29 - 681ed00 - lavf 54.13.0 - avformat.h
172 Add AVFMT_FLAG_NOBUFFER for low latency use cases.
174 2012-07-10 - 5fade8a - lavu 51.37.0
175 Add av_malloc_array() and av_mallocz_array()
177 2012-06-22 - d3d3a32 - lavu 51.34.0
180 2012-06-20 - ae0a301 - lavu 51.33.0
181 Move av_gettime() to libavutil, add libavutil/time.h
183 2012-06-09 - 3971be0 - lavr 0.0.3
184 Add a parameter to avresample_build_matrix() for Dolby/DPLII downmixing.
186 2012-06-12 - 9baeff9 - lavfi 2.23.0 - avfilter.h
187 Add AVFilterContext.nb_inputs/outputs. Deprecate
188 AVFilterContext.input/output_count.
190 2012-06-12 - 84b9fbe - lavfi 2.22.0 - avfilter.h
191 Add avfilter_pad_get_type() and avfilter_pad_get_name(). Those
192 should now be used instead of accessing AVFilterPad members
195 2012-06-12 - b0f0dfc - lavu 51.32.0 - audioconvert.h
196 Add av_get_channel_layout_channel_index(), av_get_channel_name()
197 and av_channel_layout_extract_channel().
199 2012-05-25 - 154486f - lavu 51.31.0 - opt.h
202 2012-05-15 - lavfi 2.17.0
203 Add support for audio filters
204 ac71230/a2cd9be - add video/audio buffer sink in a new installed
206 720c6b7 - add av_buffersrc_write_frame(), deprecate
207 av_vsrc_buffer_add_frame()
208 ab16504 - add avfilter_copy_buf_props()
209 9453c9e - add extended_data to AVFilterBuffer
210 1b8c927 - add avfilter_get_audio_buffer_ref_from_arrays()
212 2012-05-09 - lavu 51.30.0 - samplefmt.h
213 142e740 - add av_samples_copy()
214 6d7f617 - add av_samples_set_silence()
216 2012-05-09 - a5117a2 - lavc 54.13.1
217 For audio formats with fixed frame size, the last frame
218 no longer needs to be padded with silence, libavcodec
219 will handle this internally (effectively all encoders
220 behave as if they had CODEC_CAP_SMALL_LAST_FRAME set).
222 2012-05-07 - 828bd08 - lavc 54.13.0 - avcodec.h
223 Add sample_rate and channel_layout fields to AVFrame.
225 2012-05-01 - 4010d72 - lavr 0.0.1
226 Change AV_MIX_COEFF_TYPE_Q6 to AV_MIX_COEFF_TYPE_Q8.
228 2012-04-25 - 3527a73 - lavu 51.29.0 - cpu.h
229 Add av_parse_cpu_flags()
231 2012-04-24 - c8af852 - lavr 0.0.0
232 Add libavresample audio conversion library
234 2012-04-20 - 0c0d1bc - lavu 51.28.0 - audio_fifo.h
235 Add audio FIFO functions:
237 av_audio_fifo_alloc()
238 av_audio_fifo_realloc()
239 av_audio_fifo_write()
241 av_audio_fifo_drain()
242 av_audio_fifo_reset()
244 av_audio_fifo_space()
246 2012-04-14 - lavfi 2.16.0 - avfiltergraph.h
247 d7bcc71 Add avfilter_graph_parse2().
249 2012-04-08 - 4d693b0 - lavu 51.27.0 - samplefmt.h
250 Add av_get_packed_sample_fmt() and av_get_planar_sample_fmt()
252 2012-03-21 - b75c67d - lavu 51.43.100
253 Add bprint.h for bprint API.
255 2012-02-21 - 9cbf17e - lavc 54.4.100
256 Add av_get_pcm_codec() function.
258 2012-02-16 - 560b224 - libswr 0.7.100
259 Add swr_set_matrix() function.
261 2012-02-09 - c28e7af - lavu 51.39.100
262 Add a new installed header libavutil/timestamp.h with timestamp
265 2012-02-06 - 70ffda3 - lavu 51.38.100
266 Add av_parse_ratio() function to parseutils.h.
268 2012-02-06 - 70ffda3 - lavu 51.38.100
269 Add AV_LOG_MAX_OFFSET macro to log.h.
271 2012-02-02 - 0eaa123 - lavu 51.37.100
272 Add public timecode helpers.
274 2012-01-24 - 0c3577b - lavfi 2.60.100
275 Add avfilter_graph_dump.
277 2012-03-05 - lavc 54.8.0
278 6699d07 Add av_get_exact_bits_per_sample()
279 9524cf7 Add av_get_audio_frame_duration()
281 2012-03-04 - 44fe77b - lavc 54.7.0 - avcodec.h
282 Add av_codec_is_encoder/decoder().
284 2012-03-01 - 442c132 - lavc 54.3.0 - avcodec.h
285 Add av_packet_shrink_side_data.
287 2012-02-29 - dd2a4bc - lavf 54.2.0 - avformat.h
288 Add AVStream.attached_pic and AV_DISPOSITION_ATTACHED_PIC,
289 used for dealing with attached pictures/cover art.
291 2012-02-25 - c9bca80 - lavu 51.24.0 - error.h
293 NOTE: this was backported to 0.8
295 2012-02-20 - e9cda85 - lavc 54.2.0
296 Add duration field to AVCodecParserContext
298 2012-02-20 - 0b42a93 - lavu 51.23.1 - mathematics.h
299 Add av_rescale_q_rnd()
301 2012-02-08 - 38d5533 - lavu 51.22.1 - pixdesc.h
302 Add PIX_FMT_PSEUDOPAL flag.
304 2012-02-08 - 52f82a1 - lavc 54.01.0
305 Add avcodec_encode_video2() and deprecate avcodec_encode_video().
307 2012-02-01 - 316fc74 - lavc 54.01.0
308 Add av_fast_padded_malloc() as alternative for av_realloc() when aligned
309 memory is required. The buffer will always have FF_INPUT_BUFFER_PADDING_SIZE
310 zero-padded bytes at the end.
312 2012-01-31 - dd6d3b0 - lavf 54.01.0
313 Add avformat_get_riff_video_tags() and avformat_get_riff_audio_tags().
314 NOTE: this was backported to 0.8
316 2012-01-31 - af08d9a - lavc 54.01.0
317 Add avcodec_is_open() function.
318 NOTE: this was backported to 0.8
320 2012-01-30 - 8b93312 - lavu 51.22.0 - intfloat.h
321 Add a new installed header libavutil/intfloat.h with int/float punning
323 NOTE: this was backported to 0.8
325 2012-01-25 - lavf 53.22.0
326 f1caf01 Allow doing av_write_frame(ctx, NULL) for flushing possible
327 buffered data within a muxer. Added AVFMT_ALLOW_FLUSH for
328 muxers supporting it (av_write_frame makes sure it is called
329 only for muxers with this flag).
331 2012-01-15 - lavc 53.34.0
332 New audio encoding API:
333 b2c75b6 Add CODEC_CAP_VARIABLE_FRAME_SIZE capability for use by audio
335 5ee5fa0 Add avcodec_fill_audio_frame() as a convenience function.
336 b2c75b6 Add avcodec_encode_audio2() and deprecate avcodec_encode_audio().
337 Add AVCodec.encode2().
339 2012-01-12 - 3167dc9 - lavfi 2.15.0
340 Add a new installed header -- libavfilter/version.h -- with version macros.
342 2011-12-08 - a502939 - lavfi 2.52.0
343 Add av_buffersink_poll_frame() to buffersink.h.
345 2011-12-08 - 26c6fec - lavu 51.31.0
346 Add av_log_format_line.
348 2011-12-03 - 976b095 - lavu 51.30.0
351 2011-11-24 - 573ffbb - lavu 51.28.1
352 Add av_get_alt_sample_fmt() to samplefmt.h.
354 2011-11-03 - 96949da - lavu 51.23.0
355 Add av_strcasecmp() and av_strncasecmp() to avstring.h.
357 2011-10-20 - b35e9e1 - lavu 51.22.0
358 Add av_strtok() to avstring.h.
360 2011-01-03 - b73ec05 - lavu 51.21.0
363 2011-12-18 - 8400b12 - lavc 53.28.1
364 Deprecate AVFrame.age. The field is unused.
366 2011-12-12 - 5266045 - lavf 53.17.0
367 Add avformat_close_input().
368 Deprecate av_close_input_file() and av_close_input_stream().
370 2011-12-02 - 0eea212 - lavc 53.25.0
371 Add nb_samples and extended_data fields to AVFrame.
372 Deprecate AVCODEC_MAX_AUDIO_FRAME_SIZE.
373 Deprecate avcodec_decode_audio3() in favor of avcodec_decode_audio4().
374 avcodec_decode_audio4() writes output samples to an AVFrame, which allows
375 audio decoders to use get_buffer().
377 2011-12-04 - 560f773 - lavc 53.24.0
378 Change AVFrame.data[4]/base[4]/linesize[4]/error[4] to [8] at next major bump.
379 Change AVPicture.data[4]/linesize[4] to [8] at next major bump.
380 Change AVCodecContext.error[4] to [8] at next major bump.
381 Add AV_NUM_DATA_POINTERS to simplify the bump transition.
383 2011-11-23 - bbb46f3 - lavu 51.18.0
384 Add av_samples_get_buffer_size(), av_samples_fill_arrays(), and
385 av_samples_alloc(), to samplefmt.h.
387 2011-11-23 - 8889cc4 - lavu 51.17.0
388 Add planar sample formats and av_sample_fmt_is_planar() to samplefmt.h.
390 2011-11-19 - f3a29b7 - lavc 53.21.0
391 Move some AVCodecContext fields to a new private struct, AVCodecInternal,
392 which is accessed from a new field, AVCodecContext.internal.
394 AVCodecContext.internal_buffer --> AVCodecInternal.buffer
395 AVCodecContext.internal_buffer_count --> AVCodecInternal.buffer_count
396 AVCodecContext.is_copy --> AVCodecInternal.is_copy
398 2011-11-16 - 6270671 - lavu 51.16.0
401 2011-11-13 - lavf 53.15.0
402 New interrupt callback API, allowing per-AVFormatContext/AVIOContext
404 6aa0b98 Add AVIOInterruptCB struct and the interrupt_callback field to
406 1dee0ac Add avio_open2() with additional parameters. Those are
407 an interrupt callback and an options AVDictionary.
408 This will allow passing AVOptions to protocols after lavf
411 2011-11-06 - ba04ecf - lavu 51.14.0
412 Add av_strcasecmp() and av_strncasecmp() to avstring.h.
414 2011-11-06 - 07b172f - lavu 51.13.0
415 Add av_toupper()/av_tolower()
417 2011-11-05 - b6d08f4 - lavf 53.13.0
418 Add avformat_network_init()/avformat_network_deinit()
420 2011-10-27 - 512557b - lavc 53.15.0
421 Remove avcodec_parse_frame.
422 Deprecate AVCodecContext.parse_only and CODEC_CAP_PARSE_ONLY.
424 2011-10-19 - 569129a - lavf 53.10.0
425 Add avformat_new_stream(). Deprecate av_new_stream().
427 2011-10-13 - b631fba - lavf 53.9.0
428 Add AVFMT_NO_BYTE_SEEK AVInputFormat flag.
430 2011-10-12 - lavu 51.12.0
431 AVOptions API rewrite.
433 - 145f741 FF_OPT_TYPE* renamed to AV_OPT_TYPE_*
434 - new setting/getting functions with slightly different semantics:
435 dac66da av_set_string3 -> av_opt_set
436 av_set_double -> av_opt_set_double
437 av_set_q -> av_opt_set_q
438 av_set_int -> av_opt_set_int
440 41d9d51 av_get_string -> av_opt_get
441 av_get_double -> av_opt_get_double
442 av_get_q -> av_opt_get_q
443 av_get_int -> av_opt_get_int
445 - 8c5dcaa trivial rename av_next_option -> av_opt_next
446 - 641c7af new functions - av_opt_child_next, av_opt_child_class_next
449 2011-09-22 - a70e787 - lavu 51.17.0
452 2011-09-18 - 645cebb - lavc 53.16.0
455 2011-09-16 - ea8de10 - lavfi 2.42.0
456 Add avfilter_all_channel_layouts.
458 2011-09-16 - 9899037 - lavfi 2.41.0
459 Rename avfilter_all_* function names to avfilter_make_all_*.
461 In particular, apply the renames:
462 avfilter_all_formats -> avfilter_make_all_formats
463 avfilter_all_channel_layouts -> avfilter_make_all_channel_layouts
464 avfilter_all_packing_formats -> avfilter_make_all_packing_formats
466 2011-09-12 - 4381bdd - lavfi 2.40.0
467 Change AVFilterBufferRefAudioProps.sample_rate type from uint32_t to int.
469 2011-09-12 - 2c03174 - lavfi 2.40.0
470 Simplify signature for avfilter_get_audio_buffer(), make it
471 consistent with avfilter_get_video_buffer().
473 2011-09-06 - 4f7dfe1 - lavfi 2.39.0
474 Rename libavfilter/vsink_buffer.h to libavfilter/buffersink.h.
476 2011-09-06 - c4415f6 - lavfi 2.38.0
477 Unify video and audio sink API.
479 In particular, add av_buffersink_get_buffer_ref(), deprecate
480 av_vsink_buffer_get_video_buffer_ref() and change the value for the
481 opaque field passed to the abuffersink init function.
483 2011-09-04 - 61e2e29 - lavu 51.16.0
486 2011-08-22 - dacd827 - lavf 53.10.0
487 Add av_find_program_from_stream().
489 2011-08-20 - 69e2c1a - lavu 51.13.0
490 Add av_get_media_type_string().
492 2011-09-03 - fb4ca26 - lavc 53.13.0
495 Add {avcodec,avformat,sws}_get_class().
497 2011-08-03 - c11fb82 - lavu 51.15.0
498 Add AV_OPT_SEARCH_FAKE_OBJ flag for av_opt_find() function.
500 2011-08-14 - 323b930 - lavu 51.12.0
501 Add av_fifo_peek2(), deprecate av_fifo_peek().
503 2011-08-26 - lavu 51.9.0
504 - add41de..abc78a5 Do not include intfloat_readwrite.h,
505 mathematics.h, rational.h, pixfmt.h, or log.h from avutil.h.
507 2011-08-16 - 48f9e45 - lavf 53.8.0
508 Add avformat_query_codec().
510 2011-08-16 - bca06e7 - lavc 53.11.0
511 Add avcodec_get_type().
513 2011-08-06 - 2f63440 - lavf 53.7.0
514 Add error_recognition to AVFormatContext.
516 2011-08-02 - 9d39cbf - lavc 53.9.1
517 Add AV_PKT_FLAG_CORRUPT AVPacket flag.
519 2011-07-16 - b57df29 - lavfi 2.27.0
520 Add audio packing negotiation fields and helper functions.
522 In particular, add AVFilterPacking enum, planar, in_packings and
523 out_packings fields to AVFilterLink, and the functions:
524 avfilter_set_common_packing_formats()
525 avfilter_all_packing_formats()
527 2011-07-10 - a67c061 - lavf 53.6.0
528 Add avformat_find_stream_info(), deprecate av_find_stream_info().
529 NOTE: this was backported to 0.7
531 2011-07-10 - 0b950fe - lavc 53.8.0
532 Add avcodec_open2(), deprecate avcodec_open().
533 NOTE: this was backported to 0.7
535 Add avcodec_alloc_context3. Deprecate avcodec_alloc_context() and
536 avcodec_alloc_context2().
538 2011-07-01 - b442ca6 - lavf 53.5.0 - avformat.h
539 Add function av_get_output_timestamp().
541 2011-06-28 - 5129336 - lavu 51.11.0 - avutil.h
542 Define the AV_PICTURE_TYPE_NONE value in AVPictureType enum.
544 2011-06-19 - fd2c0a5 - lavfi 2.23.0 - avfilter.h
545 Add layout negotiation fields and helper functions.
547 In particular, add in_chlayouts and out_chlayouts to AVFilterLink,
549 avfilter_set_common_sample_formats()
550 avfilter_set_common_channel_layouts()
551 avfilter_all_channel_layouts()
553 2011-06-19 - 527ca39 - lavfi 2.22.0 - AVFilterFormats
554 Change type of AVFilterFormats.formats from int * to int64_t *,
555 and update formats handling API accordingly.
557 avfilter_make_format_list() still takes a int32_t array and converts
558 it to int64_t. A new function, avfilter_make_format64_list(), that
559 takes int64_t arrays has been added.
561 2011-06-19 - 44f669e - lavfi 2.21.0 - vsink_buffer.h
562 Add video sink buffer and vsink_buffer.h public header.
564 2011-06-12 - 9fdf772 - lavfi 2.18.0 - avcodec.h
565 Add avfilter_get_video_buffer_ref_from_frame() function in
566 libavfilter/avcodec.h.
568 2011-06-12 - c535494 - lavfi 2.17.0 - avfiltergraph.h
569 Add avfilter_inout_alloc() and avfilter_inout_free() functions.
571 2011-06-12 - 6119b23 - lavfi 2.16.0 - avfilter_graph_parse()
572 Change avfilter_graph_parse() signature.
574 2011-06-23 - 67e9ae1 - lavu 51.8.0 - attributes.h
575 Add av_printf_format().
577 2011-06-16 - 05e84c9, 25de595 - lavf 53.2.0 - avformat.h
578 Add avformat_open_input and avformat_write_header().
579 Deprecate av_open_input_stream, av_open_input_file,
580 AVFormatParameters and av_write_header.
582 2011-06-16 - 7e83e1c, dc59ec5 - lavu 51.7.0 - opt.h
583 Add av_opt_set_dict() and av_opt_find().
584 Deprecate av_find_opt().
585 Add AV_DICT_APPEND flag.
587 2011-06-10 - cb7c11c - lavu 51.6.0 - opt.h
588 Add av_opt_flag_is_set().
590 2011-06-10 - c381960 - lavfi 2.15.0 - avfilter_get_audio_buffer_ref_from_arrays
591 Add avfilter_get_audio_buffer_ref_from_arrays() to avfilter.h.
593 2011-06-09 - d9f80ea - lavu 51.8.0 - AVMetadata
594 Move AVMetadata from lavf to lavu and rename it to
595 AVDictionary -- new installed header dict.h.
596 All av_metadata_* functions renamed to av_dict_*.
598 2011-06-07 - a6703fa - lavu 51.8.0 - av_get_bytes_per_sample()
599 Add av_get_bytes_per_sample() in libavutil/samplefmt.h.
600 Deprecate av_get_bits_per_sample_fmt().
602 2011-06-05 - b39b062 - lavu 51.8.0 - opt.h
603 Add av_opt_free convenience function.
605 2011-06-06 - 95a0242 - lavfi 2.14.0 - AVFilterBufferRefAudioProps
606 Remove AVFilterBufferRefAudioProps.size, and use nb_samples in
607 avfilter_get_audio_buffer() and avfilter_default_get_audio_buffer() in
610 2011-06-06 - 0bc2cca - lavu 51.6.0 - av_samples_alloc()
611 Switch nb_channels and nb_samples parameters order in
614 2011-06-06 - e1c7414 - lavu 51.5.0 - av_samples_*
615 Change the data layout created by av_samples_fill_arrays() and
618 2011-06-06 - 27bcf55 - lavfi 2.13.0 - vsrc_buffer.h
619 Make av_vsrc_buffer_add_video_buffer_ref() accepts an additional
620 flags parameter in input.
622 2011-06-03 - e977ca2 - lavfi 2.12.0 - avfilter_link_free()
623 Add avfilter_link_free() function.
625 2011-06-02 - 5ad38d9 - lavu 51.4.0 - av_force_cpu_flags()
626 Add av_cpu_flags() in libavutil/cpu.h.
628 2011-05-28 - e71f260 - lavu 51.3.0 - pixdesc.h
629 Add av_get_pix_fmt_name() in libavutil/pixdesc.h, and deprecate
630 avcodec_get_pix_fmt_name() in libavcodec/avcodec.h in its favor.
632 2011-05-25 - 30315a8 - lavf 53.3.0 - avformat.h
633 Add fps_probe_size to AVFormatContext.
635 2011-05-22 - 5ecdfd0 - lavf 53.2.0 - avformat.h
636 Introduce avformat_alloc_output_context2() and deprecate
637 avformat_alloc_output_context().
639 2011-05-22 - 83db719 - lavfi 2.10.0 - vsrc_buffer.h
640 Make libavfilter/vsrc_buffer.h public.
642 2011-05-19 - c000a9f - lavfi 2.8.0 - avcodec.h
643 Add av_vsrc_buffer_add_frame() to libavfilter/avcodec.h.
645 2011-05-14 - 9fdf772 - lavfi 2.6.0 - avcodec.h
646 Add avfilter_get_video_buffer_ref_from_frame() to libavfilter/avcodec.h.
648 2011-05-18 - 64150ff - lavc 53.7.0 - AVCodecContext.request_sample_fmt
649 Add request_sample_fmt field to AVCodecContext.
651 2011-05-10 - 188dea1 - lavc 53.6.0 - avcodec.h
652 Deprecate AVLPCType and the following fields in
653 AVCodecContext: lpc_coeff_precision, prediction_order_method,
654 min_partition_order, max_partition_order, lpc_type, lpc_passes.
655 Corresponding FLAC encoder options should be used instead.
657 2011-05-07 - 9fdf772 - lavfi 2.5.0 - avcodec.h
658 Add libavfilter/avcodec.h header and avfilter_copy_frame_props()
661 2011-05-07 - 18ded93 - lavc 53.5.0 - AVFrame
662 Add format field to AVFrame.
664 2011-05-07 - 22333a6 - lavc 53.4.0 - AVFrame
665 Add width and height fields to AVFrame.
667 2011-05-01 - 35fe66a - lavfi 2.4.0 - avfilter.h
668 Rename AVFilterBufferRefVideoProps.pixel_aspect to
671 2011-05-01 - 77e9dee - lavc 53.3.0 - AVFrame
672 Add a sample_aspect_ratio field to AVFrame.
674 2011-05-01 - 1ba5727 - lavc 53.2.0 - AVFrame
675 Add a pkt_pos field to AVFrame.
677 2011-04-29 - 35ceaa7 - lavu 51.2.0 - mem.h
678 Add av_dynarray_add function for adding
679 an element to a dynamic array.
681 2011-04-26 - bebe72f - lavu 51.1.0 - avutil.h
682 Add AVPictureType enum and av_get_picture_type_char(), deprecate
683 FF_*_TYPE defines and av_get_pict_type_char() defined in
684 libavcodec/avcodec.h.
686 2011-04-26 - 10d3940 - lavfi 2.3.0 - avfilter.h
687 Add pict_type and key_frame fields to AVFilterBufferRefVideo.
689 2011-04-26 - 7a11c82 - lavfi 2.2.0 - vsrc_buffer
690 Add sample_aspect_ratio fields to vsrc_buffer arguments
692 2011-04-21 - 94f7451 - lavc 53.1.0 - avcodec.h
693 Add CODEC_CAP_SLICE_THREADS for codecs supporting sliced threading.
695 2011-04-15 - lavc 52.120.0 - avcodec.h
696 AVPacket structure got additional members for passing side information:
697 4de339e introduce side information for AVPacket
698 2d8591c make containers pass palette change in AVPacket
700 2011-04-12 - lavf 52.107.0 - avio.h
701 Avio cleanup, part II - deprecate the entire URLContext API:
702 175389c add avio_check as a replacement for url_exist
703 ff1ec0c add avio_pause and avio_seek_time as replacements
704 for _av_url_read_fseek/fpause
705 cdc6a87 deprecate av_protocol_next(), avio_enum_protocols
706 should be used instead.
707 80c6e23 rename url_set_interrupt_cb->avio_set_interrupt_cb.
708 f87b1b3 rename open flags: URL_* -> AVIO_*
709 f8270bb add avio_enum_protocols.
710 5593f03 deprecate URLProtocol.
711 c486dad deprecate URLContext.
712 026e175 deprecate the typedef for URLInterruptCB
713 8e76a19 deprecate av_register_protocol2.
714 b840484 deprecate URL_PROTOCOL_FLAG_NESTED_SCHEME
715 1305d93 deprecate av_url_read_seek
716 fa104e1 deprecate av_url_read_pause
717 727c7aa deprecate url_get_filename().
718 5958df3 deprecate url_max_packet_size().
719 1869ea0 deprecate url_get_file_handle().
720 32a97d4 deprecate url_filesize().
721 e52a914 deprecate url_close().
722 58a48c6 deprecate url_seek().
723 925e908 deprecate url_write().
724 dce3756 deprecate url_read_complete().
725 bc371ac deprecate url_read().
726 0589da0 deprecate url_open().
727 62eaaea deprecate url_connect.
728 5652bb9 deprecate url_alloc.
729 333e894 deprecate url_open_protocol
730 e230705 deprecate url_poll and URLPollEntry
732 2011-04-08 - lavf 52.106.0 - avformat.h
733 Minor avformat.h cleanup:
734 a9bf9d8 deprecate av_guess_image2_codec
735 c3675df rename avf_sdp_create->av_sdp_create
737 2011-04-03 - lavf 52.105.0 - avio.h
738 Large-scale renaming/deprecating of AVIOContext-related functions:
739 724f6a0 deprecate url_fdopen
740 403ee83 deprecate url_open_dyn_packet_buf
741 6dc7d80 rename url_close_dyn_buf -> avio_close_dyn_buf
742 b92c545 rename url_open_dyn_buf -> avio_open_dyn_buf
743 8978fed introduce an AVIOContext.seekable field as a replacement for
744 AVIOContext.is_streamed and url_is_streamed()
745 b64030f deprecate get_checksum()
746 4c4427a deprecate init_checksum()
747 4ec153b deprecate udp_set_remote_url/get_local_port
748 933e90a deprecate av_url_read_fseek/fpause
749 8d9769a deprecate url_fileno
750 b7f2fdd rename put_flush_packet -> avio_flush
751 35f1023 deprecate url_close_buf
752 83fddae deprecate url_open_buf
753 d9d86e0 rename url_fprintf -> avio_printf
754 59f65d9 deprecate url_setbufsize
755 3e68b3b deprecate url_ferror
756 e8bb2e2 deprecate url_fget_max_packet_size
757 76aa876 rename url_fsize -> avio_size
758 e519753 deprecate url_fgetc
759 655e45e deprecate url_fgets
760 a2704c9 rename url_ftell -> avio_tell
761 e16ead0 deprecate get_strz() in favor of avio_get_str
762 0300db8,2af07d3 rename url_fskip -> avio_skip
763 6b4aa5d rename url_fseek -> avio_seek
764 61840b4 deprecate put_tag
765 22a3212 rename url_fopen/fclose -> avio_open/close.
766 0ac8e2b deprecate put_nbyte
767 77eb550 rename put_byte -> avio_w8
768 put_[b/l]e<type> -> avio_w[b/l]<type>
769 put_buffer -> avio_write
770 b7effd4 rename get_byte -> avio_r8,
771 get_[b/l]e<type> -> avio_r[b/l]<type>
772 get_buffer -> avio_read
773 b3db9ce deprecate get_partial_buffer
774 8d9ac96 rename av_alloc_put_byte -> avio_alloc_context
776 2011-03-25 - 34b47d7 - lavc 52.115.0 - AVCodecContext.audio_service_type
777 Add audio_service_type field to AVCodecContext.
779 2011-03-17 - e309fdc - lavu 50.40.0 - pixfmt.h
780 Add PIX_FMT_BGR48LE and PIX_FMT_BGR48BE pixel formats
782 2011-03-02 - 863c471 - lavf 52.103.0 - av_pkt_dump2, av_pkt_dump_log2
783 Add new functions av_pkt_dump2, av_pkt_dump_log2 that uses the
784 source stream timebase for outputting timestamps. Deprecate
785 av_pkt_dump and av_pkt_dump_log.
787 2011-02-20 - e731b8d - lavf 52.102.0 - avio.h
788 * e731b8d - rename init_put_byte() to ffio_init_context(), deprecating the
789 original, and move it to a private header so it is no longer
790 part of our public API. Instead, use av_alloc_put_byte().
791 * ae628ec - rename ByteIOContext to AVIOContext.
793 2011-02-16 - 09d171b - lavf 52.101.0 - avformat.h
794 lavu 52.39.0 - parseutils.h
795 * 610219a - Add av_ prefix to dump_format().
796 * f6c7375 - Replace parse_date() in lavf with av_parse_time() in lavu.
797 * ab0287f - Move find_info_tag from lavf to lavu and add av_prefix to it.
799 2011-02-15 - lavu 52.38.0 - merge libavcore
800 libavcore is merged back completely into libavutil
802 2011-02-10 - 55bad0c - lavc 52.113.0 - vbv_delay
803 Add vbv_delay field to AVCodecContext
805 2011-02-14 - 24a83bd - lavf 52.100.0 - AV_DISPOSITION_CLEAN_EFFECTS
806 Add AV_DISPOSITION_CLEAN_EFFECTS disposition flag.
808 2011-02-14 - 910b5b8 - lavfi 1.76.0 - AVFilterLink sample_aspect_ratio
809 Add sample_aspect_ratio field to AVFilterLink.
811 2011-02-10 - 12c14cd - lavf 52.99.0 - AVStream.disposition
812 Add AV_DISPOSITION_HEARING_IMPAIRED and AV_DISPOSITION_VISUAL_IMPAIRED.
814 2011-02-09 - 5592734 - lavc 52.112.0 - avcodec_thread_init()
815 Deprecate avcodec_thread_init()/avcodec_thread_free() use; instead
816 set thread_count before calling avcodec_open.
818 2011-02-09 - 778b08a - lavc 52.111.0 - threading API
819 Add CODEC_CAP_FRAME_THREADS with new restrictions on get_buffer()/
820 release_buffer()/draw_horiz_band() callbacks for appropriate codecs.
821 Add thread_type and active_thread_type fields to AVCodecContext.
823 2011-02-08 - 3940caa - lavf 52.98.0 - av_probe_input_buffer
824 Add av_probe_input_buffer() to avformat.h for probing format from a
827 2011-02-06 - fe174fc - lavf 52.97.0 - avio.h
828 Add flag for non-blocking protocols: URL_FLAG_NONBLOCK
830 2011-02-04 - f124b08 - lavf 52.96.0 - avformat_free_context()
831 Add avformat_free_context() in avformat.h.
833 2011-02-03 - f5b82f4 - lavc 52.109.0 - add CODEC_ID_PRORES
834 Add CODEC_ID_PRORES to avcodec.h.
836 2011-02-03 - fe9a3fb - lavc 52.109.0 - H.264 profile defines
837 Add defines for H.264 * Constrained Baseline and Intra profiles
839 2011-02-02 - lavf 52.95.0
840 * 50196a9 - add a new installed header version.h.
841 * 4efd5cf, dccbd97, 93b78d1 - add several variants of public
842 avio_{put,get}_str* functions. Deprecate corresponding semi-public
845 2011-02-02 - dfd2a00 - lavu 50.37.0 - log.h
848 2011-01-31 - 7b3ea55 - lavfi 1.76.0 - vsrc_buffer
849 Add sample_aspect_ratio fields to vsrc_buffer arguments
851 2011-01-31 - 910b5b8 - lavfi 1.75.0 - AVFilterLink sample_aspect_ratio
852 Add sample_aspect_ratio field to AVFilterLink.
854 2011-01-15 - a242ac3 - lavfi 1.74.0 - AVFilterBufferRefAudioProps
855 Rename AVFilterBufferRefAudioProps.samples_nb to nb_samples.
857 2011-01-14 - 7f88a5b - lavf 52.93.0 - av_metadata_copy()
858 Add av_metadata_copy() in avformat.h.
860 2011-01-07 - 81c623f - lavc 52.107.0 - deprecate reordered_opaque
861 Deprecate reordered_opaque in favor of pkt_pts/dts.
863 2011-01-07 - 1919fea - lavc 52.106.0 - pkt_dts
864 Add pkt_dts to AVFrame, this will in the future allow multithreading decoders
867 2011-01-07 - 393cbb9 - lavc 52.105.0 - pkt_pts
868 Add pkt_pts to AVFrame.
870 2011-01-07 - 060ec0a - lavc 52.104.0 - av_get_profile_name()
871 Add av_get_profile_name to libavcodec/avcodec.h.
873 2010-12-27 - 0ccabee - lavfi 1.71.0 - AV_PERM_NEG_LINESIZES
874 Add AV_PERM_NEG_LINESIZES in avfilter.h.
876 2010-12-27 - 9128ae0 - lavf 52.91.0 - av_find_best_stream()
877 Add av_find_best_stream to libavformat/avformat.h.
879 2010-12-27 - 107a7e3 - lavf 52.90.0
880 Add AVFMT_NOSTREAMS flag for formats with no streams,
881 like e.g. text metadata.
883 2010-12-22 - 0328b9e - lavu 50.36.0 - file.h
884 Add functions av_file_map() and av_file_unmap() in file.h.
886 2010-12-19 - 0bc55f5 - lavu 50.35.0 - error.h
887 Add "not found" error codes:
888 AVERROR_DEMUXER_NOT_FOUND
889 AVERROR_MUXER_NOT_FOUND
890 AVERROR_DECODER_NOT_FOUND
891 AVERROR_ENCODER_NOT_FOUND
892 AVERROR_PROTOCOL_NOT_FOUND
893 AVERROR_FILTER_NOT_FOUND
894 AVERROR_BSF_NOT_FOUND
895 AVERROR_STREAM_NOT_FOUND
897 2010-12-09 - c61cdd0 - lavcore 0.16.0 - avcore.h
898 Move AV_NOPTS_VALUE, AV_TIME_BASE, AV_TIME_BASE_Q symbols from
899 avcodec.h to avcore.h.
901 2010-12-04 - 16cfc96 - lavc 52.98.0 - CODEC_CAP_NEG_LINESIZES
902 Add CODEC_CAP_NEG_LINESIZES codec capability flag in avcodec.h.
904 2010-12-04 - bb4afa1 - lavu 50.34.0 - av_get_pix_fmt_string()
905 Deprecate avcodec_pix_fmt_string() in favor of
906 pixdesc.h/av_get_pix_fmt_string().
908 2010-12-04 - 4da12e3 - lavcore 0.15.0 - av_image_alloc()
909 Add av_image_alloc() to libavcore/imgutils.h.
911 2010-12-02 - 037be76 - lavfi 1.67.0 - avfilter_graph_create_filter()
912 Add function avfilter_graph_create_filter() in avfiltergraph.h.
914 2010-11-25 - 4723bc2 - lavfi 1.65.0 - avfilter_get_video_buffer_ref_from_arrays()
915 Add function avfilter_get_video_buffer_ref_from_arrays() in
918 2010-11-21 - 176a615 - lavcore 0.14.0 - audioconvert.h
919 Add a public audio channel API in audioconvert.h, and deprecate the
920 corresponding functions in libavcodec:
921 avcodec_get_channel_name()
922 avcodec_get_channel_layout()
923 avcodec_get_channel_layout_string()
924 avcodec_channel_layout_num_channels()
925 and the CH_* macros defined in libavcodec/avcodec.h.
927 2010-11-21 - 6bfc268 - lavf 52.85.0 - avformat.h
928 Add av_append_packet().
930 2010-11-21 - a08d918 - lavc 52.97.0 - avcodec.h
931 Add av_grow_packet().
933 2010-11-17 - 0985e1a - lavcore 0.13.0 - parseutils.h
934 Add av_parse_color() declared in libavcore/parseutils.h.
936 2010-11-13 - cb2c971 - lavc 52.95.0 - AVCodecContext
937 Add AVCodecContext.subtitle_header and AVCodecContext.subtitle_header_size
940 2010-11-13 - 5aaea02 - lavfi 1.62.0 - avfiltergraph.h
941 Make avfiltergraph.h public.
943 2010-11-13 - 4fcbb2a - lavfi 1.61.0 - avfiltergraph.h
944 Remove declarations from avfiltergraph.h for the functions:
945 avfilter_graph_check_validity()
946 avfilter_graph_config_links()
947 avfilter_graph_config_formats()
948 which are now internal.
949 Use avfilter_graph_config() instead.
951 2010-11-08 - d2af720 - lavu 50.33.0 - eval.h
953 av_parse_and_eval_expr(),
957 in favor of the functions:
958 av_expr_parse_and_eval(),
963 2010-11-08 - 24de0ed - lavfi 1.59.0 - avfilter_free()
964 Rename avfilter_destroy() to avfilter_free().
965 This change breaks libavfilter API/ABI.
967 2010-11-07 - 1e80a0e - lavfi 1.58.0 - avfiltergraph.h
968 Remove graphparser.h header, move AVFilterInOut and
969 avfilter_graph_parse() declarations to libavfilter/avfiltergraph.h.
971 2010-11-07 - 7313132 - lavfi 1.57.0 - AVFilterInOut
972 Rename field AVFilterInOut.filter to AVFilterInOut.filter_ctx.
973 This change breaks libavfilter API.
975 2010-11-04 - 97dd1e4 - lavfi 1.56.0 - avfilter_graph_free()
976 Rename avfilter_graph_destroy() to avfilter_graph_free().
977 This change breaks libavfilter API/ABI.
979 2010-11-04 - e15aeea - lavfi 1.55.0 - avfilter_graph_alloc()
980 Add avfilter_graph_alloc() to libavfilter/avfiltergraph.h.
982 2010-11-02 - 6f84cd1 - lavcore 0.12.0 - av_get_bits_per_sample_fmt()
983 Add av_get_bits_per_sample_fmt() to libavcore/samplefmt.h and
984 deprecate av_get_bits_per_sample_format().
986 2010-11-02 - d63e456 - lavcore 0.11.0 - samplefmt.h
987 Add sample format functions in libavcore/samplefmt.h:
988 av_get_sample_fmt_name(),
990 av_get_sample_fmt_string(),
991 and deprecate the corresponding libavcodec/audioconvert.h functions:
992 avcodec_get_sample_fmt_name(),
993 avcodec_get_sample_fmt(),
994 avcodec_sample_fmt_string().
996 2010-11-02 - 262d1c5 - lavcore 0.10.0 - samplefmt.h
997 Define enum AVSampleFormat in libavcore/samplefmt.h, deprecate enum
1000 2010-10-16 - 2a24df9 - lavfi 1.52.0 - avfilter_graph_config()
1001 Add the function avfilter_graph_config() in avfiltergraph.h.
1003 2010-10-15 - 03700d3 - lavf 52.83.0 - metadata API
1004 Change demuxers to export metadata in generic format and
1005 muxers to accept generic format. Deprecate the public
1008 2010-10-10 - 867ae7a - lavfi 1.49.0 - AVFilterLink.time_base
1009 Add time_base field to AVFilterLink.
1011 2010-09-27 - c85eef4 - lavu 50.31.0 - av_set_options_string()
1012 Move av_set_options_string() from libavfilter/parseutils.h to
1015 2010-09-27 - acc0490 - lavfi 1.47.0 - AVFilterLink
1016 Make the AVFilterLink fields srcpad and dstpad store the pointers to
1017 the source and destination pads, rather than their indexes.
1019 2010-09-27 - 372e288 - lavu 50.30.0 - av_get_token()
1020 Move av_get_token() from libavfilter/parseutils.h to
1021 libavutil/avstring.h.
1023 2010-09-26 - 635d4ae - lsws 0.12.0 - swscale.h
1024 Add the functions sws_alloc_context() and sws_init_context().
1026 2010-09-26 - 6ed0404 - lavu 50.29.0 - opt.h
1027 Move libavcodec/opt.h to libavutil/opt.h.
1029 2010-09-24 - 1c1c80f - lavu 50.28.0 - av_log_set_flags()
1030 Default of av_log() changed due to many problems to the old no repeat
1031 detection. Read the docs of AV_LOG_SKIP_REPEATED in log.h before
1032 enabling it for your app!.
1034 2010-09-24 - f66eb58 - lavc 52.90.0 - av_opt_show2()
1035 Deprecate av_opt_show() in favor or av_opt_show2().
1037 2010-09-14 - bc6f0af - lavu 50.27.0 - av_popcount()
1038 Add av_popcount() to libavutil/common.h.
1040 2010-09-08 - c6c98d0 - lavu 50.26.0 - av_get_cpu_flags()
1041 Add av_get_cpu_flags().
1043 2010-09-07 - 34017fd - lavcore 0.9.0 - av_image_copy()
1044 Add av_image_copy().
1046 2010-09-07 - 9686abb - lavcore 0.8.0 - av_image_copy_plane()
1047 Add av_image_copy_plane().
1049 2010-09-07 - 9b7269e - lavcore 0.7.0 - imgutils.h
1050 Adopt hierarchical scheme for the imgutils.h function names,
1051 deprecate the old names.
1053 2010-09-04 - 7160bb7 - lavu 50.25.0 - AV_CPU_FLAG_*
1054 Deprecate the FF_MM_* flags defined in libavcodec/avcodec.h in favor
1055 of the AV_CPU_FLAG_* flags defined in libavutil/cpu.h.
1057 2010-08-26 - 5da19b5 - lavc 52.87.0 - avcodec_get_channel_layout()
1058 Add avcodec_get_channel_layout() in audioconvert.h.
1060 2010-08-20 - e344336 - lavcore 0.6.0 - av_fill_image_max_pixsteps()
1061 Rename av_fill_image_max_pixstep() to av_fill_image_max_pixsteps().
1063 2010-08-18 - a6ddf8b - lavcore 0.5.0 - av_fill_image_max_pixstep()
1064 Add av_fill_image_max_pixstep() in imgutils.h.
1066 2010-08-17 - 4f2d2e4 - lavu 50.24.0 - AV_NE()
1067 Add the AV_NE macro.
1069 2010-08-17 - ad2c950 - lavfi 1.36.0 - audio framework
1070 Implement AVFilterBufferRefAudioProps struct for audio properties,
1071 get_audio_buffer(), filter_samples() functions and related changes.
1073 2010-08-12 - 81c1eca - lavcore 0.4.0 - av_get_image_linesize()
1074 Add av_get_image_linesize() in imgutils.h.
1076 2010-08-11 - c1db7bf - lavfi 1.34.0 - AVFilterBufferRef
1077 Resize data and linesize arrays in AVFilterBufferRef to 8.
1079 This change breaks libavfilter API/ABI.
1081 2010-08-11 - 9f08d80 - lavc 52.85.0 - av_picture_data_copy()
1082 Add av_picture_data_copy in avcodec.h.
1084 2010-08-11 - 84c0386 - lavfi 1.33.0 - avfilter_open()
1085 Change avfilter_open() signature:
1086 AVFilterContext *avfilter_open(AVFilter *filter, const char *inst_name) ->
1087 int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);
1089 This change breaks libavfilter API/ABI.
1091 2010-08-11 - cc80caf - lavfi 1.32.0 - AVFilterBufferRef
1092 Add a type field to AVFilterBufferRef, and move video specific
1093 properties to AVFilterBufferRefVideoProps.
1095 This change breaks libavfilter API/ABI.
1097 2010-08-07 - 5d4890d - lavfi 1.31.0 - AVFilterLink
1098 Rename AVFilterLink fields:
1099 AVFilterLink.srcpic -> AVFilterLink.src_buf
1100 AVFilterLink.cur_pic -> AVFilterLink.cur_buf
1101 AVFilterLink.outpic -> AVFilterLink.out_buf
1103 2010-08-07 - 7fce481 - lavfi 1.30.0
1104 Rename functions and fields:
1105 avfilter_(un)ref_pic -> avfilter_(un)ref_buffer
1106 avfilter_copy_picref_props -> avfilter_copy_buffer_ref_props
1107 AVFilterBufferRef.pic -> AVFilterBufferRef.buffer
1109 2010-08-07 - ecc8dad - lavfi 1.29.0 - AVFilterBufferRef
1110 Rename AVFilterPicRef to AVFilterBufferRef.
1112 2010-08-07 - d54e094 - lavfi 1.28.0 - AVFilterBuffer
1113 Move format field from AVFilterBuffer to AVFilterPicRef.
1115 2010-08-06 - bf176f5 - lavcore 0.3.0 - av_check_image_size()
1116 Deprecate avcodec_check_dimensions() in favor of the function
1117 av_check_image_size() defined in libavcore/imgutils.h.
1119 2010-07-30 - 56b5e9d - lavfi 1.27.0 - AVFilterBuffer
1120 Increase size of the arrays AVFilterBuffer.data and
1121 AVFilterBuffer.linesize from 4 to 8.
1123 This change breaks libavfilter ABI.
1125 2010-07-29 - e7bd48a - lavcore 0.2.0 - imgutils.h
1126 Add functions av_fill_image_linesizes() and
1127 av_fill_image_pointers(), declared in libavcore/imgutils.h.
1129 2010-07-27 - 126b638 - lavcore 0.1.0 - parseutils.h
1130 Deprecate av_parse_video_frame_size() and av_parse_video_frame_rate()
1131 defined in libavcodec in favor of the newly added functions
1132 av_parse_video_size() and av_parse_video_rate() declared in
1133 libavcore/parseutils.h.
1135 2010-07-23 - 4485247 - lavu 50.23.0 - mathematics.h
1136 Add the M_PHI constant definition.
1138 2010-07-22 - bdab614 - lavfi 1.26.0 - media format generalization
1139 Add a type field to AVFilterLink.
1141 Change the field types:
1142 enum PixelFormat format -> int format in AVFilterBuffer
1143 enum PixelFormat *formats -> int *formats in AVFilterFormats
1144 enum PixelFormat *format -> int format in AVFilterLink
1146 Change the function signatures:
1147 AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts); ->
1148 AVFilterFormats *avfilter_make_format_list(const int *fmts);
1150 int avfilter_add_colorspace(AVFilterFormats **avff, enum PixelFormat pix_fmt); ->
1151 int avfilter_add_format (AVFilterFormats **avff, int fmt);
1153 AVFilterFormats *avfilter_all_colorspaces(void); ->
1154 AVFilterFormats *avfilter_all_formats (enum AVMediaType type);
1156 This change breaks libavfilter API/ABI.
1158 2010-07-21 - aac6ca6 - lavcore 0.0.0
1161 2010-07-17 - b5c582f - lavfi 1.25.0 - AVFilterBuffer
1162 Remove w and h fields from AVFilterBuffer.
1164 2010-07-17 - f0d77b2 - lavfi 1.24.0 - AVFilterBuffer
1165 Rename AVFilterPic to AVFilterBuffer.
1167 2010-07-17 - 57fe80f - lavf 52.74.0 - url_fskip()
1168 Make url_fskip() return an int error code instead of void.
1170 2010-07-11 - 23940f1 - lavc 52.83.0
1171 Add AVCodecContext.lpc_type and AVCodecContext.lpc_passes fields.
1173 Deprecate AVCodecContext.use_lpc.
1175 2010-07-11 - e1d7c88 - lavc 52.82.0 - avsubtitle_free()
1176 Add a function for free the contents of a AVSubtitle generated by
1177 avcodec_decode_subtitle.
1179 2010-07-11 - b91d08f - lavu 50.22.0 - bswap.h and intreadwrite.h
1180 Make the bswap.h and intreadwrite.h API public.
1182 2010-07-08 - ce1cd1c - lavu 50.21.0 - pixdesc.h
1183 Rename read/write_line() to av_read/write_image_line().
1185 2010-07-07 - 4d508e4 - lavfi 1.21.0 - avfilter_copy_picref_props()
1186 Add avfilter_copy_picref_props().
1188 2010-07-03 - 2d525ef - lavc 52.79.0
1189 Add FF_COMPLIANCE_UNOFFICIAL and change all instances of
1190 FF_COMPLIANCE_INOFFICIAL to use FF_COMPLIANCE_UNOFFICIAL.
1192 2010-07-02 - 89eec74 - lavu 50.20.0 - lfg.h
1193 Export av_lfg_init(), av_lfg_get(), av_mlfg_get(), and av_bmg_get() through
1196 2010-06-28 - a52e2c3 - lavfi 1.20.1 - av_parse_color()
1197 Extend av_parse_color() syntax, make it accept an alpha value specifier and
1198 set the alpha value to 255 by default.
1200 2010-06-22 - 735cf6b - lavf 52.71.0 - URLProtocol.priv_data_size, priv_data_class
1201 Add priv_data_size and priv_data_class to URLProtocol.
1203 2010-06-22 - ffbb289 - lavf 52.70.0 - url_alloc(), url_connect()
1204 Add url_alloc() and url_connect().
1206 2010-06-22 - 9b07a2d - lavf 52.69.0 - av_register_protocol2()
1207 Add av_register_protocol2(), deprecating av_register_protocol().
1209 2010-06-09 - 65db058 - lavu 50.19.0 - av_compare_mod()
1210 Add av_compare_mod() to libavutil/mathematics.h.
1212 2010-06-05 - 0b99215 - lavu 50.18.0 - eval API
1213 Make the eval API public.
1215 2010-06-04 - 31878fc - lavu 50.17.0 - AV_BASE64_SIZE
1216 Add AV_BASE64_SIZE() macro.
1218 2010-06-02 - 7e566bb - lavc 52.73.0 - av_get_codec_tag_string()
1219 Add av_get_codec_tag_string().
1221 2010-06-01 - 2b99142 - lsws 0.11.0 - convertPalette API
1222 Add sws_convertPalette8ToPacked32() and sws_convertPalette8ToPacked24().
1224 2010-05-26 - 93ebfee - lavc 52.72.0 - CODEC_CAP_EXPERIMENTAL
1225 Add CODEC_CAP_EXPERIMENTAL flag.
1226 NOTE: this was backported to 0.6
1228 2010-05-23 - 9977863 - lavu 50.16.0 - av_get_random_seed()
1229 Add av_get_random_seed().
1231 2010-05-18 - 796ac23 - lavf 52.63.0 - AVFMT_FLAG_RTP_HINT
1232 Add AVFMT_FLAG_RTP_HINT as possible value for AVFormatContext.flags.
1233 NOTE: this was backported to 0.6
1235 2010-05-09 - b6bc205 - lavfi 1.20.0 - AVFilterPicRef
1236 Add interlaced and top_field_first fields to AVFilterPicRef.
1238 ------------------------------8<-------------------------------------
1239 0.6 branch was cut here
1240 ----------------------------->8--------------------------------------
1242 2010-05-01 - 8e2ee18 - lavf 52.62.0 - probe function
1243 Add av_probe_input_format2 to API, it allows ignoring probe
1244 results below given score and returns the actual probe score.
1246 2010-04-01 - 3dd6180 - lavf 52.61.0 - metadata API
1247 Add a flag for av_metadata_set2() to disable overwriting of
1250 2010-04-01 - 0fb49b5 - lavc 52.66.0
1251 Add avcodec_get_edge_width().
1253 2010-03-31 - d103218 - lavc 52.65.0
1254 Add avcodec_copy_context().
1256 2010-03-31 - 1a70d12 - lavf 52.60.0 - av_match_ext()
1257 Make av_match_ext() public.
1259 2010-03-31 - 1149150 - lavu 50.14.0 - AVMediaType
1260 Move AVMediaType enum from libavcodec to libavutil.
1262 2010-03-31 - 72415b2 - lavc 52.64.0 - AVMediaType
1263 Define AVMediaType enum, and use it instead of enum CodecType, which
1264 is deprecated and will be dropped at the next major bump.
1266 2010-03-25 - 8795823 - lavu 50.13.0 - av_strerror()
1267 Implement av_strerror().
1269 2010-03-23 - e1484eb - lavc 52.60.0 - av_dct_init()
1270 Support DCT-I and DST-I.
1272 2010-03-15 - b8819c8 - lavf 52.56.0 - AVFormatContext.start_time_realtime
1273 Add AVFormatContext.start_time_realtime field.
1275 2010-03-13 - 5bb5c1d - lavfi 1.18.0 - AVFilterPicRef.pos
1276 Add AVFilterPicRef.pos field.
1278 2010-03-13 - 60c144f - lavu 50.12.0 - error.h
1279 Move error code definitions from libavcodec/avcodec.h to
1280 the new public header libavutil/error.h.
1282 2010-03-07 - c709483 - lavc 52.56.0 - avfft.h
1283 Add public FFT interface.
1285 2010-03-06 - ac6ef86 - lavu 50.11.0 - av_stristr()
1288 2010-03-03 - 4b83fc0 - lavu 50.10.0 - av_tree_enumerate()
1289 Add av_tree_enumerate().
1291 2010-02-07 - b687c1a - lavu 50.9.0 - av_compare_ts()
1292 Add av_compare_ts().
1294 2010-02-05 - 3f3dc76 - lsws 0.10.0 - sws_getCoefficients()
1295 Add sws_getCoefficients().
1297 2010-02-01 - ca76a11 - lavf 52.50.0 - metadata API
1298 Add a list of generic tag names, change 'author' -> 'artist',
1301 2010-01-30 - 80a07f6 - lavu 50.8.0 - av_get_pix_fmt()
1302 Add av_get_pix_fmt().
1304 2010-01-21 - 01cc47d - lsws 0.9.0 - sws_scale()
1305 Change constness attributes of sws_scale() parameters.
1307 2010-01-10 - 3fb8e77 - lavfi 1.15.0 - avfilter_graph_config_links()
1308 Add a log_ctx parameter to avfilter_graph_config_links().
1310 2010-01-07 - 8e9767f - lsws 0.8.0 - sws_isSupported{In,Out}put()
1311 Add sws_isSupportedInput() and sws_isSupportedOutput() functions.
1313 2010-01-06 - c1d662f - lavfi 1.14.0 - avfilter_add_colorspace()
1314 Change the avfilter_add_colorspace() signature, make it accept an
1315 (AVFilterFormats **) rather than an (AVFilterFormats *) as before.
1317 2010-01-03 - 4fd1f18 - lavfi 1.13.0 - avfilter_add_colorspace()
1318 Add avfilter_add_colorspace().
1320 2010-01-02 - 8eb631f - lavf 52.46.0 - av_match_ext()
1321 Add av_match_ext(), it should be used in place of match_ext().
1323 2010-01-01 - a1f547b - lavf 52.45.0 - av_guess_format()
1324 Add av_guess_format(), it should be used in place of guess_format().
1326 2009-12-13 - a181981 - lavf 52.43.0 - metadata API
1327 Add av_metadata_set2(), AV_METADATA_DONT_STRDUP_KEY and
1328 AV_METADATA_DONT_STRDUP_VAL.
1330 2009-12-13 - 277c733 - lavu 50.7.0 - avstring.h API
1333 2009-12-13 - 02b398e - lavc 52.42.0 - AVStream
1336 2009-12-12 - 3ba69a1 - lavu 50.6.0 - av_bmg_next()
1337 Introduce the av_bmg_next() function.
1339 2009-12-05 - a13a543 - lavfi 1.12.0 - avfilter_draw_slice()
1340 Add a slice_dir parameter to avfilter_draw_slice().
1342 2009-11-26 - 4cc3f6a - lavfi 1.11.0 - AVFilter
1343 Remove the next field from AVFilter, this is not anymore required.
1345 2009-11-25 - 1433c4a - lavfi 1.10.0 - avfilter_next()
1346 Introduce the avfilter_next() function.
1348 2009-11-25 - 86a60fa - lavfi 1.9.0 - avfilter_register()
1349 Change the signature of avfilter_register() to make it return an
1350 int. This is required since now the registration operation may fail.
1352 2009-11-25 - 74a0059 - lavu 50.5.0 - pixdesc.h API
1353 Make the pixdesc.h API public.
1355 2009-10-27 - 243110f - lavfi 1.5.0 - AVFilter.next
1356 Add a next field to AVFilter, this is used for simplifying the
1357 registration and management of the registered filters.
1359 2009-10-23 - cccd292 - lavfi 1.4.1 - AVFilter.description
1360 Add a description field to AVFilter.
1362 2009-10-19 - 6b5dc05 - lavfi 1.3.0 - avfilter_make_format_list()
1363 Change the interface of avfilter_make_format_list() from
1364 avfilter_make_format_list(int n, ...) to
1365 avfilter_make_format_list(enum PixelFormat *pix_fmts).
1367 2009-10-18 - 0eb4ff9 - lavfi 1.0.0 - avfilter_get_video_buffer()
1368 Make avfilter_get_video_buffer() recursive and add the w and h
1371 2009-10-07 - 46c40e4 - lavfi 0.5.1 - AVFilterPic
1372 Add w and h fields to AVFilterPic.
1374 2009-06-22 - 92400be - lavf 52.34.1 - AVFormatContext.packet_size
1375 This is now an unsigned int instead of a signed int.
1377 2009-06-19 - a4276ba - lavc 52.32.0 - AVSubtitle.pts
1378 Add a pts field to AVSubtitle which gives the subtitle packet pts
1379 in AV_TIME_BASE. Some subtitle de-/encoders (e.g. XSUB) will
1380 not work right without this.
1382 2009-06-03 - 8f3f2e0 - lavc 52.30.2 - AV_PKT_FLAG_KEY
1383 PKT_FLAG_KEY has been deprecated and will be dropped at the next
1384 major version. Use AV_PKT_FLAG_KEY instead.
1386 2009-06-01 - f988ce6 - lavc 52.30.0 - av_lockmgr_register()
1387 av_lockmgr_register() can be used to register a callback function
1388 that lavc (and in the future, libraries that depend on lavc) can use
1389 to implement mutexes. The application should provide a callback function
1390 that implements the AV_LOCK_* operations described in avcodec.h.
1391 When the lock manager is registered, FFmpeg is guaranteed to behave
1392 correctly in a multi-threaded application.
1394 2009-04-30 - ce1d9c8 - lavc 52.28.0 - av_free_packet()
1395 av_free_packet() is no longer an inline function. It is now exported.
1397 2009-04-11 - 80d403f - lavc 52.25.0 - deprecate av_destruct_packet_nofree()
1398 Please use NULL instead. This has been supported since r16506
1399 (lavf > 52.23.1, lavc > 52.10.0).
1401 2009-04-07 - 7a00bba - lavc 52.23.0 - avcodec_decode_video/audio/subtitle
1402 The old decoding functions are deprecated, all new code should use the
1403 new functions avcodec_decode_video2(), avcodec_decode_audio3() and
1404 avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt
1405 argument instead of a const uint8_t *buf / int buf_size pair.
1407 2009-04-03 - 7b09db3 - lavu 50.3.0 - av_fifo_space()
1408 Introduce the av_fifo_space() function.
1410 2009-04-02 - fabd246 - lavc 52.23.0 - AVPacket
1411 Move AVPacket declaration from libavformat/avformat.h to
1412 libavcodec/avcodec.h.
1414 2009-03-22 - 6e08ca9 - lavu 50.2.0 - RGB32 pixel formats
1415 Convert the pixel formats PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR,
1416 PIX_FMT_BGRA, which were defined as macros, into enum PixelFormat values.
1417 Conversely PIX_FMT_RGB32, PIX_FMT_RGB32_1, PIX_FMT_BGR32 and
1418 PIX_FMT_BGR32_1 are now macros.
1419 avcodec_get_pix_fmt() now recognizes the "rgb32" and "bgr32" aliases.
1420 Re-sort the enum PixelFormat list accordingly.
1421 This change breaks API/ABI backward compatibility.
1423 2009-03-22 - f82674e - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants
1424 Add the enum PixelFormat values:
1425 PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,
1426 PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.
1428 2009-03-21 - ee6624e - lavu 50.0.0 - av_random*
1429 The Mersenne Twister PRNG implemented through the av_random* functions
1430 was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions
1433 2009-03-08 - 41dd680 - lavu 50.0.0 - AVFifoBuffer
1434 av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped
1435 and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write
1436 and av_fifo_realloc2.
1437 In addition, the order of the function arguments of av_fifo_generic_read
1438 was changed to match av_fifo_generic_write.
1439 The AVFifoBuffer/struct AVFifoBuffer may only be used in an opaque way by
1440 applications, they may not use sizeof() or directly access members.
1442 2009-03-01 - ec26457 - lavf 52.31.0 - Generic metadata API
1443 Introduce a new metadata API (see av_metadata_get() and friends).
1444 The old API is now deprecated and should not be used anymore. This especially
1445 includes the following structure fields:
1446 - AVFormatContext.title
1447 - AVFormatContext.author
1448 - AVFormatContext.copyright
1449 - AVFormatContext.comment
1450 - AVFormatContext.album
1451 - AVFormatContext.year
1452 - AVFormatContext.track
1453 - AVFormatContext.genre
1456 - AVProgram.provider_name