1 Never assume the API of libav* to be stable unless at least 1 week has passed since
2 the last major version increase.
3 The last version increases were:
7 libavfilter: 2009-10-18
14 API changes, most recent first:
16 2010-08-11 - r24765 - lavfi 1.33.0 - avfilter_open()
17 Change avfilter_open() signature:
18 AVFilterContext *avfilter_open(AVFilter *filter, const char *inst_name) ->
19 int avfilter_open(AVFilterContext **filter_ctx, AVFilter *filter, const char *inst_name);
21 This change breaks libavfilter API/ABI.
23 2010-08-11 - r24763 - lavfi 1.32.0 - AVFilterBufferRef
24 Add a type field to AVFilterBufferRef, and move video specific
25 properties to AVFilterBufferRefVideoProps.
27 This changs breaks libavfilter API/ABI.
29 2010-08-07 - r24732 - lavfi 1.31.0 - AVFilterLink
30 Rename AVFilterLink fields:
31 AVFilterLink.srcpic -> AVFilterLink.src_buf
32 AVFilterLink.cur_pic -> AVFilterLink.cur_buf
33 AVFilterLink.outpic -> AVFilterLink.out_buf
35 2010-08-07 - r24731 - lavfi 1.30.0
36 Rename functions and fields:
37 avfilter_(un)ref_pic -> avfilter_(un)ref_buffer
38 avfilter_copy_picref_props -> avfilter_copy_buffer_ref_props
39 AVFilterBufferRef.pic -> AVFilterBufferRef.buffer
41 2010-08-07 - r24730 - lavfi 1.29.0 - AVFilterBufferRef
42 Rename AVFilterPicRef to AVFilterBufferRef.
44 2010-08-07 - r24728 - lavfi 1.28.0 - AVFilterBuffer
45 Move format field from AVFilterBuffer to AVFilterPicRef.
47 2010-08-06 - r24709 - lavcore 0.3.0 - av_check_image_size()
48 Deprecate avcodec_check_dimensions() in favor of the function
49 av_check_image_size() defined in libavcore/imgutils.h.
51 2010-07-30 - r24592 - lavfi 1.27.0 - AVFilterBuffer
52 Increase size of the arrays AVFilterBuffer.data and
53 AVFilterBuffer.linesize from 4 to 8.
55 This change breaks libavfilter ABI.
57 2010-07-29 - r24583 - lavcore 0.2.0 - imgutils.h
58 Add functions av_fill_image_linesizes() and
59 av_fill_image_pointers(), declared in libavcore/imgutils.h.
61 2010-07-27 - r24518 - lavcore 0.1.0 - parseutils.h
62 Deprecate av_parse_video_frame_size() and av_parse_video_frame_rate()
63 defined in libavcodec in favor of the newly added functions
64 av_parse_video_size() and av_parse_video_rate() declared in
65 libavcore/parseutils.h.
67 2010-07-23 - r24439 - lavu 50.23.0 - mathematics.h
68 Add the M_PHI constant definition.
70 2010-07-22 - r24424 - lavfi 1.26.0 - media format generalization
71 Add a type field to AVFilterLink.
73 Change the field types:
74 enum PixelFormat format -> int format in AVFilterBuffer
75 enum PixelFormat *formats -> int *formats in AVFilterFormats
76 enum PixelFormat *format -> int format in AVFilterLink
78 Change the function signatures:
79 AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts); ->
80 AVFilterFormats *avfilter_make_format_list(const int *fmts);
82 int avfilter_add_colorspace(AVFilterFormats **avff, enum PixelFormat pix_fmt); ->
83 int avfilter_add_format (AVFilterFormats **avff, int fmt);
85 AVFilterFormats *avfilter_all_colorspaces(void); ->
86 AVFilterFormats *avfilter_all_formats (enum AVMediaType type);
88 This change breaks libavfilter API/ABI.
90 2010-07-21 - r24393 - lavcore 0.0.0
93 2010-07-17 - r24291 - lavfi 1.25.0 - AVFilterBuffer
94 Remove w and h fields from AVFilterBuffer.
96 2010-07-17 - r24284 - lavfi 1.24.0 - AVFilterBuffer
97 Rename AVFilterPic to AVFilterBuffer.
99 2010-07-17 - r24278 - lavf 52.74.0 - url_fskip()
100 Make url_fskip() return an int error code instead of void.
102 2010-07-11 - r24199 - lavc 52.83.0
103 Add AVCodecContext.lpc_type and AVCodecContext.lpc_passes fields.
105 Deprecate AVCodecContext.use_lpc.
107 2010-07-11 - r24185 - lavc 52.82.0 - avsubtitle_free()
108 Add a function for free the contents of a AVSubtitle generated by
109 avcodec_decode_subtitle.
111 2010-07-11 - r24174 - lavu 50.22.0 - bswap.h and intreadwrite.h
112 Make the bswap.h and intreadwrite.h API public.
114 2010-07-08 - r24101 - lavu 50.21.0 - pixdesc.h
115 Rename read/write_line() to av_read/write_image_line().
117 2010-07-07 - r24091 - lavfi 1.21.0 - avfilter_copy_picref_props()
118 Add avfilter_copy_picref_props().
120 2010-07-03 - r24021 - lavc 52.79.0
121 Add FF_COMPLIANCE_UNOFFICIAL and change all instances of
122 FF_COMPLIANCE_INOFFICIAL to use FF_COMPLIANCE_UNOFFICIAL.
124 2010-07-02 - r23985 - lavu 50.20.0 - lfg.h
125 Export av_lfg_init(), av_lfg_get(), av_mlfg_get(), and av_bmg_get() through
128 2010-06-28 - r23835 - lavfi 1.20.1 - av_parse_color()
129 Extend av_parse_color() syntax, make it accept an alpha value specifier and
130 set the alpha value to 255 by default.
132 2010-06-22 - r23706 - lavf 52.71.0 - URLProtocol.priv_data_size, priv_data_class
133 Add priv_data_size and priv_data_class to URLProtocol.
135 2010-06-22 - r23704 - lavf 52.70.0 - url_alloc(), url_connect()
136 Add url_alloc() and url_connect().
138 2010-06-22 - r23702 - lavf 52.69.0 - av_register_protocol2()
139 Add av_register_protocol2(), deprecating av_register_protocol().
141 2010-06-09 - r23551 - lavu 50.19.0 - av_compare_mod()
142 Add av_compare_mod() to libavutil/mathematics.h.
144 2010-06-05 - r23485 - lavu 50.18.0 - eval API
145 Make the eval API public.
147 2010-06-04 - r23461 - lavu 50.17.0 - AV_BASE64_SIZE
148 Add AV_BASE64_SIZE() macro.
150 2010-06-02 - r23421 - lavc 52.73.0 - av_get_codec_tag_string()
151 Add av_get_codec_tag_string().
153 2010-06-01 - r31301 - lsws 0.11.0 - convertPalette API
154 Add sws_convertPalette8ToPacked32() and sws_convertPalette8ToPacked24().
156 2010-05-26 - r23334 - lavc 52.72.0 - CODEC_CAP_EXPERIMENTAL
157 Add CODEC_CAP_EXPERIMENTAL flag.
159 2010-05-23 - r23255 - lavu 50.16.0 - av_get_random_seed()
160 Add av_get_random_seed().
162 2010-05-18 - r23161 - lavf 52.63.0 - AVFMT_FLAG_RTP_HINT
163 Add AVFMT_FLAG_RTP_HINT as possible value for AVFormatContext.flags.
165 2010-05-09 - r23066 - lavfi 1.20.0 - AVFilterPicRef
166 Add interlaced and top_field_first fields to AVFilterPicRef.
168 2010-05-01 - r23002 - lavf 52.62.0 - probe function
169 Add av_probe_input_format2 to API, it allows ignoring probe
170 results below given score and returns the actual probe score.
172 2010-04-01 - r22806 - lavf 52.61.0 - metadata API
173 Add a flag for av_metadata_set2() to disable overwriting of
176 2010-04-01 - r22753 - lavc 52.66.0
177 Add avcodec_get_edge_width().
179 2010-03-31 - r22750 - lavc 52.65.0
180 Add avcodec_copy_context().
182 2010-03-31 - r22748 - lavf 52.60.0 - av_match_ext()
183 Make av_match_ext() public.
185 2010-03-31 - r22736 - lavu 50.14.0 - AVMediaType
186 Move AVMediaType enum from libavcodec to libavutil.
188 2010-03-31 - r22735 - lavc 52.64.0 - AVMediaType
189 Define AVMediaType enum, and use it instead of enum CodecType, which
190 is deprecated and will be dropped at the next major bump.
192 2010-03-25 - r22684 - lavu 50.13.0 - av_strerror()
193 Implement av_strerror().
195 2010-03-23 - r22649 - lavc 52.60.0 - av_dct_init()
196 Support DCT-I and DST-I.
198 2010-03-15 - r22540 - lavf 52.56.0 - AVFormatContext.start_time_realtime
199 Add AVFormatContext.start_time_realtime field.
201 2010-03-13 - r22506 - lavfi 1.18.0 - AVFilterPicRef.pos
202 Add AVFilterPicRef.pos field.
204 2010-03-13 - r22501 - lavu 50.12.0 - error.h
205 Move error code definitions from libavcodec/avcodec.h to
206 the new public header libavutil/error.h.
208 2010-03-07 - r22291 - lavc 52.56.0 - avfft.h
209 Add public FFT interface.
211 2010-03-06 - r22251 - lavu 50.11.0 - av_stristr()
214 2010-03-03 - r22174 - lavu 50.10.0 - av_tree_enumerate()
215 Add av_tree_enumerate().
217 2010-02-07 - r21673 - lavu 50.9.0 - av_compare_ts()
220 2010-02-05 - r30513 - lsws 0.10.0 - sws_getCoefficients()
221 Add sws_getCoefficients().
223 2010-02-01 - r21587 - lavf 52.50.0 - metadata API
224 Add a list of generic tag names, change 'author' -> 'artist',
227 2010-01-30 - r21545 - lavu 50.8.0 - av_get_pix_fmt()
228 Add av_get_pix_fmt().
230 2010-01-21 - r30381 - lsws 0.9.0 - sws_scale()
231 Change constness attributes of sws_scale() parameters.
233 2010-01-10 - r21121 - lavfi 1.15.0 - avfilter_graph_config_links()
234 Add a log_ctx parameter to avfilter_graph_config_links().
236 2010-01-07 - r30236 - lsws 0.8.0 - sws_isSupported{In,Out}put()
237 Add sws_isSupportedInput() and sws_isSupportedOutput() functions.
239 2010-01-06 - r21035 - lavfi 1.14.0 - avfilter_add_colorspace()
240 Change the avfilter_add_colorspace() signature, make it accept an
241 (AVFilterFormats **) rather than an (AVFilterFormats *) as before.
243 2010-01-03 - r21007 - lavfi 1.13.0 - avfilter_add_colorspace()
244 Add avfilter_add_colorspace().
246 2010-01-02 - r20998 - lavf 52.46.0 - av_match_ext()
247 Add av_match_ext(), it should be used in place of match_ext().
249 2010-01-01 - r20991 - lavf 52.45.0 - av_guess_format()
250 Add av_guess_format(), it should be used in place of guess_format().
252 2009-12-13 - r20834 - lavf 52.43.0 - metadata API
253 Add av_metadata_set2(), AV_METADATA_DONT_STRDUP_KEY and
254 AV_METADATA_DONT_STRDUP_VAL.
256 2009-12-13 - r20829 - lavu 50.7.0 - avstring.h API
259 2009-12-13 - r20826 - lavc 52.42.0 - AVStream
262 2009-12-12 - r20808 - lavu 50.6.0 - av_bmg_next()
263 Introduce the av_bmg_next() function.
265 2009-12-05 - r20734 - lavfi 1.12.0 - avfilter_draw_slice()
266 Add a slice_dir parameter to avfilter_draw_slice().
268 2009-11-26 - r20611 - lavfi 1.11.0 - AVFilter
269 Remove the next field from AVFilter, this is not anymore required.
271 2009-11-25 - r20607 - lavfi 1.10.0 - avfilter_next()
272 Introduce the avfilter_next() function.
274 2009-11-25 - r20605 - lavfi 1.9.0 - avfilter_register()
275 Change the signature of avfilter_register() to make it return an
276 int. This is required since now the registration operation may fail.
278 2009-11-25 - r20603 - lavu 50.5.0 - pixdesc.h API
279 Make the pixdesc.h API public.
281 2009-10-27 - r20385 - lavfi 1.5.0 - AVFilter.next
282 Add a next field to AVFilter, this is used for simplifying the
283 registration and management of the registered filters.
285 2009-10-23 - r20356 - lavfi 1.4.1 - AVFilter.description
286 Add a description field to AVFilter.
288 2009-10-19 - r20302 - lavfi 1.3.0 - avfilter_make_format_list()
289 Change the interface of avfilter_make_format_list() from
290 avfilter_make_format_list(int n, ...) to
291 avfilter_make_format_list(enum PixelFormat *pix_fmts).
293 2009-10-18 - r20272 - lavfi 1.0.0 - avfilter_get_video_buffer()
294 Make avfilter_get_video_buffer() recursive and add the w and h
297 2009-10-07 - r20189 - lavfi 0.5.1 - AVFilterPic
298 Add w and h fields to AVFilterPic.
300 2009-06-22 - r19250 - lavf 52.34.1 - AVFormatContext.packet_size
301 This is now an unsigned int instead of a signed int.
303 2009-06-19 - r19222 - lavc 52.32.0 - AVSubtitle.pts
304 Add a pts field to AVSubtitle which gives the subtitle packet pts
305 in AV_TIME_BASE. Some subtitle de-/encoders (e.g. XSUB) will
306 not work right without this.
308 2009-06-03 - r19078 - lavc 52.30.2 - AV_PKT_FLAG_KEY
309 PKT_FLAG_KEY has been deprecated and will be dropped at the next
310 major version. Use AV_PKT_FLAG_KEY instead.
312 2009-06-01 - r19025 - lavc 52.30.0 - av_lockmgr_register()
313 av_lockmgr_register() can be used to register a callback function
314 that lavc (and in the future, libraries that depend on lavc) can use
315 to implement mutexes. The application should provide a callback function
316 that implements the AV_LOCK_* operations described in avcodec.h.
317 When the lock manager is registered, FFmpeg is guaranteed to behave
318 correctly in a multi-threaded application.
320 2009-04-30 - r18719 - lavc 52.28.0 - av_free_packet()
321 av_free_packet() is no longer an inline function. It is now exported.
323 2009-04-11 - r18431 - lavc 52.25.0 - deprecate av_destruct_packet_nofree()
324 Please use NULL instead. This has been supported since r16506
325 (lavf > 52.23.1, lavc > 52.10.0).
327 2009-04-07 - r18351 - lavc 52.23.0 - avcodec_decode_video/audio/subtitle
328 The old decoding functions are deprecated, all new code should use the
329 new functions avcodec_decode_video2(), avcodec_decode_audio3() and
330 avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt
331 argument instead of a const uint8_t *buf / int buf_size pair.
333 2009-04-03 - r18321 - lavu 50.3.0 - av_fifo_space()
334 Introduce the av_fifo_space() function.
336 2009-04-02 - r18317 - lavc 52.23.0 - AVPacket
337 Move AVPacket declaration from libavformat/avformat.h to
338 libavcodec/avcodec.h.
340 2009-03-22 - r18163 - lavu 50.2.0 - RGB32 pixel formats
341 Convert the pixel formats PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR,
342 PIX_FMT_BGRA, which were defined as macros, into enum PixelFormat values.
343 Conversely PIX_FMT_RGB32, PIX_FMT_RGB32_1, PIX_FMT_BGR32 and
344 PIX_FMT_BGR32_1 are now macros.
345 avcodec_get_pix_fmt() now recognizes the "rgb32" and "bgr32" aliases.
346 Re-sort the enum PixelFormat list accordingly.
347 This change breaks API/ABI backward compatibility.
349 2009-03-22 - r18133 - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants
350 Add the enum PixelFormat values:
351 PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,
352 PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.
354 2009-03-21 - r18116 - lavu 50.0.0 - av_random*
355 The Mersenne Twister PRNG implemented through the av_random* functions
356 was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions
359 2009-03-08 - r17869 - lavu 50.0.0 - AVFifoBuffer
360 av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped
361 and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write
362 and av_fifo_realloc2.
363 In addition, the order of the function arguments of av_fifo_generic_read
364 was changed to match av_fifo_generic_write.
365 The AVFifoBuffer/struct AVFifoBuffer may only be used in an opaque way by
366 applications, they may not use sizeof() or directly access members.
368 2009-03-01 - r17682 - lavf 52.31.0 - Generic metadata API
369 Introduce a new metadata API (see av_metadata_get() and friends).
370 The old API is now deprecated and should not be used anymore. This especially
371 includes the following structure fields:
372 - AVFormatContext.title
373 - AVFormatContext.author
374 - AVFormatContext.copyright
375 - AVFormatContext.comment
376 - AVFormatContext.album
377 - AVFormatContext.year
378 - AVFormatContext.track
379 - AVFormatContext.genre
382 - AVProgram.provider_name