API changes, most recent first:
+2012-07-31 - xxxxxxx - lavc 54.46.100
+ Add channels field to AVFrame.
+
+2012-07-30 - xxxxxxx - lavu 51.66.100
+ Add av_get_channel_description()
+ and av_get_standard_channel_layout() functions.
+
+2012-07-20 - xxxxxxx - lavc 54.43.100
+ Add decode_error_flags field to AVFrame.
+
+2012-07-20 - xxxxxxx - lavf 54.18.100
+ Add avformat_match_stream_specifier() function.
+
+2012-07-14 - xxxxxxx - lavc 54.38.100 - avcodec.h
+ Add metadata to AVFrame, and the accessor functions
+ av_frame_get_metadata() and av_frame_set_metadata().
+
+2012-07-10 - xxxxxxx - lavc 54.33.100
+ Add av_fast_padded_mallocz().
+
+2012-07-10 - xxxxxxx - lavfi 3.2.0 - avfilter.h
+ Add init_opaque() callback to AVFilter struct.
+
2012-06-26 - xxxxxxx - lavu 51.63.100 - imgutils.h
Add functions to libavutil/imgutils.h:
av_image_get_buffer_size()
2012-03-26 - a67d9cf - lavfi 2.66.100
Add avfilter_fill_frame_from_{audio_,}buffer_ref() functions.
-2012-06-22 - xxxxxxx - lavu 51.34.0
+2012-08-xx - xxxxxxx - lavc 54.25 - avcodec.h
+ Rename CodecID to AVCodecID and all CODEC_ID_* to AV_CODEC_ID_*.
+
+2012-08-03 - xxxxxxx - lavu 51.37.1 - cpu.h
+ lsws 2.1.1 - swscale.h
+ Rename AV_CPU_FLAG_MMX2 ---> AV_CPU_FLAG_MMXEXT.
+ Rename SWS_CPU_CAPS_MMX2 ---> SWS_CPU_CAPS_MMXEXT.
+
+2012-07-xx - xxxxxxx - lavf 54.13.0 - avformat.h
+ Add AVFMT_FLAG_NOBUFFER for low latency use cases.
+
+2012-07-10 - 5fade8a - lavu 51.37.0
+ Add av_malloc_array() and av_mallocz_array()
+
+2012-06-22 - d3d3a32 - lavu 51.34.0
Add av_usleep()
2012-06-20 - ae0a301 - lavu 51.33.0
Move av_gettime() to libavutil, add libavutil/time.h
-2012-xx-xx - xxxxxxx - lavr 0.0.3
+2012-06-09 - 3971be0 - lavr 0.0.3
Add a parameter to avresample_build_matrix() for Dolby/DPLII downmixing.
-2012-xx-xx - xxxxxxx - lavfi 2.23.0 - avfilter.h
+2012-06-12 - 9baeff9 - lavfi 2.23.0 - avfilter.h
Add AVFilterContext.nb_inputs/outputs. Deprecate
AVFilterContext.input/output_count.
-2012-xx-xx - xxxxxxx - lavfi 2.22.0 - avfilter.h
+2012-06-12 - 84b9fbe - lavfi 2.22.0 - avfilter.h
Add avfilter_pad_get_type() and avfilter_pad_get_name(). Those
should now be used instead of accessing AVFilterPad members
directly.
-2012-xx-xx - xxxxxxx - lavu 51.32.0 - audioconvert.h
+2012-06-12 - b0f0dfc - lavu 51.32.0 - audioconvert.h
Add av_get_channel_layout_channel_index(), av_get_channel_name()
and av_channel_layout_extract_channel().
-2012-05-25 - e0e0793 - lavu 51.31.0 - opt.h
+2012-05-25 - 154486f - lavu 51.31.0 - opt.h
Add av_opt_set_bin()
2012-05-15 - lavfi 2.17.0