The last version increases were:
libavcodec: ?
libavdevice: ?
-libavfilter: ?
+libavfilter: 2009-10-18
libavformat: ?
libpostproc: ?
libswscale: ?
API changes, most recent first:
+2010-02-07 - r21673 - lavu 50.9.0 - av_compare_ts()
+ Add av_compare_ts().
+
+2010-02-05 - r30513 - lsws 0.10.0 - sws_getCoefficients()
+ Add sws_getCoefficients().
+
+2010-02-01 - r21587 - lavf 52.50.0 - metadata API
+ Add a list of generic tag names, change 'author' -> 'artist',
+ 'year' -> 'date'.
+
+2010-01-30 - r21545 - lavu 50.8.0 - av_get_pix_fmt()
+ Add av_get_pix_fmt().
+
+2010-01-21 - r30381 - lsws 0.9.0 - sws_scale
+ Change constness attributes of sws_scale() parameters.
+
+2010-01-10 - r21121 - lavfi 1.15.0 - avfilter_graph_config_links()
+ Add a log_ctx parameter to avfilter_graph_config_links().
+
+2010-01-07 - r30236 - lsws 0.8.0 - sws_isSupported{In,Out}put
+ Add sws_isSupportedInput() and sws_isSupportedOutput() functions.
+
+2010-01-06 - r21035 - lavfi 1.14.0 - avfilter_add_colorspace()
+ Change the avfilter_add_colorspace() signature, make it accept an
+ (AVFilterFormats **) rather than an (AVFilterFormats *) as before.
+
+2010-01-03 - r21007 - lavfi 1.13.0 - avfilter_add_colorspace()
+ Add avfilter_add_colorspace().
+
+2010-01-02 - r20998 - lavf 52.46.0 - av_match_ext()
+ Add av_match_ext(), it should be used in place of match_ext().
+
+2010-01-01 - r20991 - lavf 52.45.0 - av_guess_format()
+ Add av_guess_format(), it should be used in place of guess_format().
+
+2009-12-13 - r20834 - lavf 52.43.0 - metadata API
+ Add av_metadata_set2(), AV_METADATA_DONT_STRDUP_KEY and AV_METADATA_DONT_STRDUP_VAL.
+
+2009-12-13 - r20829 - lavu 50.7.0 - avstring.h API
+ Add av_d2str().
+
+2009-12-13 - r20826 - lavc 52.42.0 - AVStream
+ Add avg_frame_rate.
+
+2009-12-12 - r20808 - lavu 50.6.0 - av_bmg_next()
+ Introduce the av_bmg_next() function.
+
+2009-12-05 - r20734 - lavfi 1.12.0 - avfilter_draw_slice()
+ Add a slice_dir parameter to avfilter_draw_slice().
+
+2009-11-26 - r20611 - lavfi 1.11.0 - AVFilter
+ Remove the next field from AVFilter, this is not anymore required.
+
+2009-11-25 - r20607 - lavfi 1.10.0 - avfilter_next()
+ Introduce the avfilter_next() function.
+
+2009-11-25 - r20605 - lavfi 1.9.0 - avfilter_register()
+ Change the signature of avfilter_register() to make it return an
+ int. This is required since now the registration operation may fail.
+
+2009-11-25 - r20603 - lavu 50.5.0 - pixdesc.h API
+ Make the pixdesc.h API public.
+
+2009-10-27 - r20385 - lavfi 1.5.0 - AVFilter.next
+ Add a next field to AVFilter, this is used for simplifying the
+ registration and management of the registered filters.
+
+2009-10-23 - r20356 - lavfi 1.4.1 - AVFilter.description
+ Add a description field to AVFilter.
+
+2009-10-19 - r20302 - lavfi 1.3.0 - avfilter_make_format_list()
+ Change the interface of avfilter_make_format_list() from
+ avfilter_make_format_list(int n, ...) to
+ avfilter_make_format_list(enum PixelFormat *pix_fmts).
+
+2009-10-18 - r20272 - lavfi 1.0.0 - avfilter_get_video_buffer()
+ Make avfilter_get_video_buffer() recursive and add the w and h
+ parameters to it.
+
+2009-10-07 - r20189 - lavfi 0.5.1 - AVFilterPic
+ Added w and h fields to AVFilterPic.
+
+2009-06-22 - r19250 - lavf 52.34.1 - AVFormatContext.packet_size
+ This is now an unsigned int instead of a signed int.
+
2009-06-19 - r19222 - lavc 52.32.0 - AVSubtitle.pts
Added a pts field to AVSubtitle which gives the subtitle's packet
PTS in AV_TIME_BASE. Some subtitle de-/encoders (e.g. XSUB) will