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:
6 libavfilter: 2009-10-18
13 API changes, most recent first:
15 2010-03-31 - r22750 - lavc 52.65.0
16 Add avcodec_copy_context().
18 2010-03-31 - r22748 - lavf 52.60.0 - av_match_ext()
19 Make av_match_ext() public.
21 2010-03-31 - r22736 - lavu 50.14.0 - AVMediaType
22 Move AVMediaType enum from libavcodec to libavutil.
24 2010-03-31 - r22735 - lavc 52.64.0 - AVMediaType
25 Define AVMediaType enum, and use it instead of enum CodecType, which
26 is deprecated and will be dropped at the next major bump.
28 2010-03-25 - r22684 - lavu 50.13.0 - av_strerror()
29 Implement av_strerror().
31 2010-03-23 - r22649 - lavc 52.60.0 - av_dct_init()
32 Support DCT-I and DST-I
34 2010-03-15 - r22540 - lavf 52.56.0 - AVFormatContext.start_time_realtime
35 Add AVFormatContext.start_time_realtime field.
37 2010-03-13 - r22506 - lavfi 1.18.0 - AVFilterPicRef.pos
38 Add AVFilterPicRef.pos field.
40 2010-03-13 - r22501 - lavu 50.12.0 - error.h
41 Move error code definitions from libavcodec/avcodec.h to
42 the new public header libavutil/error.h.
44 2010-03-07 - r22291 - lavc 52.56.0 - avfft.h
45 Add public FFT interface.
47 2010-03-06 - r22251 - lavu 50.11.0 - av_stristr()
50 2010-03-03 - r22174 - lavu 50.10.0 - av_tree_enumerate()
51 Add av_tree_enumerate().
53 2010-02-07 - r21673 - lavu 50.9.0 - av_compare_ts()
56 2010-02-05 - r30513 - lsws 0.10.0 - sws_getCoefficients()
57 Add sws_getCoefficients().
59 2010-02-01 - r21587 - lavf 52.50.0 - metadata API
60 Add a list of generic tag names, change 'author' -> 'artist',
63 2010-01-30 - r21545 - lavu 50.8.0 - av_get_pix_fmt()
66 2010-01-21 - r30381 - lsws 0.9.0 - sws_scale
67 Change constness attributes of sws_scale() parameters.
69 2010-01-10 - r21121 - lavfi 1.15.0 - avfilter_graph_config_links()
70 Add a log_ctx parameter to avfilter_graph_config_links().
72 2010-01-07 - r30236 - lsws 0.8.0 - sws_isSupported{In,Out}put
73 Add sws_isSupportedInput() and sws_isSupportedOutput() functions.
75 2010-01-06 - r21035 - lavfi 1.14.0 - avfilter_add_colorspace()
76 Change the avfilter_add_colorspace() signature, make it accept an
77 (AVFilterFormats **) rather than an (AVFilterFormats *) as before.
79 2010-01-03 - r21007 - lavfi 1.13.0 - avfilter_add_colorspace()
80 Add avfilter_add_colorspace().
82 2010-01-02 - r20998 - lavf 52.46.0 - av_match_ext()
83 Add av_match_ext(), it should be used in place of match_ext().
85 2010-01-01 - r20991 - lavf 52.45.0 - av_guess_format()
86 Add av_guess_format(), it should be used in place of guess_format().
88 2009-12-13 - r20834 - lavf 52.43.0 - metadata API
89 Add av_metadata_set2(), AV_METADATA_DONT_STRDUP_KEY and AV_METADATA_DONT_STRDUP_VAL.
91 2009-12-13 - r20829 - lavu 50.7.0 - avstring.h API
94 2009-12-13 - r20826 - lavc 52.42.0 - AVStream
97 2009-12-12 - r20808 - lavu 50.6.0 - av_bmg_next()
98 Introduce the av_bmg_next() function.
100 2009-12-05 - r20734 - lavfi 1.12.0 - avfilter_draw_slice()
101 Add a slice_dir parameter to avfilter_draw_slice().
103 2009-11-26 - r20611 - lavfi 1.11.0 - AVFilter
104 Remove the next field from AVFilter, this is not anymore required.
106 2009-11-25 - r20607 - lavfi 1.10.0 - avfilter_next()
107 Introduce the avfilter_next() function.
109 2009-11-25 - r20605 - lavfi 1.9.0 - avfilter_register()
110 Change the signature of avfilter_register() to make it return an
111 int. This is required since now the registration operation may fail.
113 2009-11-25 - r20603 - lavu 50.5.0 - pixdesc.h API
114 Make the pixdesc.h API public.
116 2009-10-27 - r20385 - lavfi 1.5.0 - AVFilter.next
117 Add a next field to AVFilter, this is used for simplifying the
118 registration and management of the registered filters.
120 2009-10-23 - r20356 - lavfi 1.4.1 - AVFilter.description
121 Add a description field to AVFilter.
123 2009-10-19 - r20302 - lavfi 1.3.0 - avfilter_make_format_list()
124 Change the interface of avfilter_make_format_list() from
125 avfilter_make_format_list(int n, ...) to
126 avfilter_make_format_list(enum PixelFormat *pix_fmts).
128 2009-10-18 - r20272 - lavfi 1.0.0 - avfilter_get_video_buffer()
129 Make avfilter_get_video_buffer() recursive and add the w and h
132 2009-10-07 - r20189 - lavfi 0.5.1 - AVFilterPic
133 Add w and h fields to AVFilterPic.
135 2009-06-22 - r19250 - lavf 52.34.1 - AVFormatContext.packet_size
136 This is now an unsigned int instead of a signed int.
138 2009-06-19 - r19222 - lavc 52.32.0 - AVSubtitle.pts
139 Add a pts field to AVSubtitle which gives the subtitle packet pts
140 in AV_TIME_BASE. Some subtitle de-/encoders (e.g. XSUB) will
141 not work right without this.
143 2009-06-03 - r19078 - lavc 52.30.2 - AV_PKT_FLAG_KEY
144 PKT_FLAG_KEY has been deprecated and will be dropped at the next
145 major version. Use AV_PKT_FLAG_KEY instead.
147 2009-06-01 - r19025 - lavc 52.30.0 - av_lockmgr_register()
148 av_lockmgr_register() can be used to register a callback function
149 that lavc (and in the future, libraries that depend on lavc) can use
150 to implement mutexes. The application should provide a callback function
151 that implements the AV_LOCK_* operations described in avcodec.h.
152 When the lock manager is registered, FFmpeg is guaranteed to behave
153 correctly in a multi-threaded application.
155 2009-04-30 - r18719 - lavc 52.28.0 - av_free_packet
156 av_free_packet() is no longer an inline function. It is now exported.
158 2009-04-11 - r18431 - lavc 52.25.0 - deprecate av_destruct_packet_nofree
159 Please use NULL instead. This has been supported since r16506
160 (lavf > 52.23.1, lavc > 52.10.0).
162 2009-04-07 - r18351 - lavc 52.23.0 - avcodec_decode_video/audio/subtitle
163 The old decoding functions are deprecated, all new code should use the
164 new functions avcodec_decode_video2(), avcodec_decode_audio3() and
165 avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt
166 argument instead of a const uint8_t *buf / int buf_size pair.
168 2009-04-03 - r18321 - lavu 50.3.0 - av_fifo_space
169 Introduce the av_fifo_space() function.
171 2009-04-02 - r18317 - lavc 52.23.0 - AVPacket
172 Move AVPacket declaration from libavformat/avformat.h to
173 libavcodec/avcodec.h.
175 2009-03-22 - r18163 - lavu 50.2.0 - RGB32 pixel formats
176 Convert the pixel formats PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR,
177 PIX_FMT_BGRA, which were defined as macros, into enum PixelFormat values.
178 Conversely PIX_FMT_RGB32, PIX_FMT_RGB32_1, PIX_FMT_BGR32 and
179 PIX_FMT_BGR32_1 are now macros.
180 avcodec_get_pix_fmt() now recognizes the "rgb32" and "bgr32" aliases.
181 Re-sort the enum PixelFormat list accordingly.
182 This change breaks API/ABI backward compatibility.
184 2009-03-22 - r18133 - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants
185 Add the enum PixelFormat values:
186 PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,
187 PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.
189 2009-03-21 - r18116 - lavu 50.0.0 - av_random*
190 The Mersenne Twister PRNG implemented through the av_random* functions
191 was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions
194 2009-03-08 - r17869 - lavu 50.0.0 - AVFifoBuffer
195 av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped
196 and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write
197 and av_fifo_realloc2.
198 In addition, the order of the function arguments of av_fifo_generic_read
199 was changed to match av_fifo_generic_write.
200 The AVFifoBuffer/struct AVFifoBuffer may only be used in an opaque way by
201 applications, they may not use sizeof() or directly access members.
203 2009-03-01 - r17682 - lavf 52.31.0 - Generic metadata API
204 Introduce a new metadata API (see av_metadata_get() and friends).
205 The old API is now deprecated and should not be used anymore. This especially
206 includes the following structure fields:
207 - AVFormatContext.title
208 - AVFormatContext.author
209 - AVFormatContext.copyright
210 - AVFormatContext.comment
211 - AVFormatContext.album
212 - AVFormatContext.year
213 - AVFormatContext.track
214 - AVFormatContext.genre
217 - AVProgram.provider_name