API changes, most recent first:
-2012-12-20 - xxxxxxx - lavfi 3.28.100 - avfilter.h
+2013-01-17 - a1a707f - lavf 54.61.100
+ Add av_codec_get_tag2().
+
+2012-12-20 - 34de47aa - lavfi 3.29.100 - avfilter.h
Add AVFilterLink.channels, avfilter_link_get_channels()
and avfilter_ref_get_channels().
2012-03-26 - a67d9cf - lavfi 2.66.100
Add avfilter_fill_frame_from_{audio_,}buffer_ref() functions.
+2013-01-xx - xxxxxxx - lavu 52.5.0 - hmac.h
+ Add AVHMAC.
+
+2013-01-13 - xxxxxxx - lavc 54.36.0 - vdpau.h
+ Add AVVDPAUContext struct for VDPAU hardware-accelerated decoding.
+
+2013-01-12 - 169fb94 - lavu 52.4.0 - pixdesc.h
+ Add AV_PIX_FMT_VDPAU flag.
+
2013-01-07 - 074a00d - lavr 1.1.0
Add avresample_set_channel_mapping() for input channel reordering,
duplication, and silencing.
-2012-12-29 - d8fd06c - lavu 52.2.1 - avstring.h
+2012-12-29 - d8fd06c - lavu 52.3.0 - avstring.h
Add av_basename() and av_dirname().
2012-11-11 - 5980f5d - lavu 52.2.0 - audioconvert.h