The last version increases were:
libavcodec: ?
libavdevice: ?
-libavfilter: ?
+libavfilter: 2009-10-18
libavformat: ?
libpostproc: ?
libswscale: ?
API changes, most recent first:
+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
+ not work right without this.
+
+2009-06-03 - r19078 - lavc 52.30.2 - AV_PKT_FLAG_KEY
+ PKT_FLAG_KEY has been deprecated and will be dropped for the next
+ major version. Use AV_PKT_FLAG_KEY instead.
+
+2009-06-01 - r19025 - lavc 52.30.0 - av_lockmgr_register()
+ av_lockmgr_register() can be used to register a callback function
+ that lavc (and in the future, libraries that depend on lavc) can use
+ to implement mutexes. The application should provide a callback function
+ the implements the AV_LOCK_* operations described in avcodec.h.
+ When the lock manager is registered FFmpeg is guaranteed to behave
+ correct also in a multi-threaded application.
+
+2009-04-30 - r18719 - lavc 52.28.0 - av_free_packet
+ av_free_packet() is no longer an inline function. It is now exported.
+
+2009-04-11 - r18431 - lavc 52.25.0 - deprecate av_destruct_packet_nofree
+ Please use NULL instead. This has been supported since r16506
+ (lavf > 52.23.1, lavc > 52.10.0).
+
+2009-04-07 - r18351 - lavc 52.23.0 - avcodec_decode_video/audio/subtitle
+ The old decoding functions are deprecated, all new code should use the
+ new functions avcodec_decode_video2(), avcodec_decode_audio3() and
+ avcodec_decode_subtitle2(). These new functions take an AVPacket *pkt
+ argument instead of a const uint8_t *buf / int buf_size pair.
+
+2009-04-03 - r18321 - lavu 50.3.0 - av_fifo_space
+ Introduce the av_fifo_space() function.
+
+2009-04-02 - r18317 - lavc 52.23.0 - AVPacket
+ Move AVPacket declaration from libavformat/avformat.h to
+ libavcodec/avcodec.h.
+
+2009-03-22 - r18163 - lavu 50.2.0 - RGB32 pixel formats
+ Make the pixel formats: PIX_FMT_ARGB, PIX_FMT_RGBA, PIX_FMT_ABGR,
+ PIX_FMT_BGRA, which were defined as macros, defined as enum
+ PixelFormat values, and viceversa make PIX_FMT_RGB32,
+ PIX_FMT_RGB32_1, PIX_FMT_BGR32, PIX_FMT_BGR32_1 defined as macros.
+ Also make avcodec_get_pix_fmt() recognize the "rgb32" and "bgr32"
+ aliases.
+ Re-sort the enum PixelFormat list accordingly.
+ This change breaks API/ABI backward compatibility.
+
+2009-03-22 - r18133 - lavu 50.1.0 - PIX_FMT_RGB5X5 endian variants
+ Add the enum PixelFormat values:
+ PIX_FMT_RGB565BE, PIX_FMT_RGB565LE, PIX_FMT_RGB555BE, PIX_FMT_RGB555LE,
+ PIX_FMT_BGR565BE, PIX_FMT_BGR565LE, PIX_FMT_BGR555BE, PIX_FMT_BGR555LE.
+
+2009-03-21 - r18116 - lavu 50.0.0 - av_random*
+ The Mersenne Twister PRNG implemented through the av_random* functions
+ was removed. Use the lagged Fibonacci PRNG through the av_lfg* functions
+ instead.
+
2009-03-08 - r17869 - lavu 50.0.0 - AVFifoBuffer
av_fifo_init, av_fifo_read, av_fifo_write and av_fifo_realloc were dropped
and replaced by av_fifo_alloc, av_fifo_generic_read, av_fifo_generic_write