API changes, most recent first:
+2015-10-15 - xxxxxxx - lavf 57.4.100
+ Remove the latm demuxer that was a duplicate of the loas demuxer.
+
+2015-10-14 - xxxxxxx - lavu 55.4.100 / lavu 55.2.0 - dict.h
+ Change return type of av_dict_copy() from void to int, so that a proper
+ error code can be reported.
+
+2015-09-29 - xxxxxxx - lavc 57.3.100 / lavc 57.2.0 - avcodec.h
+ Change type of AVPacket.duration from int to int64_t.
+
2015-09-17 - xxxxxxx - lavc 57.3.100 / lavc 57.2.0 - d3d11va.h
Add av_d3d11va_alloc_context(). This function must from now on be used for
allocating AVD3D11VAContext.
2012-11-11 - 03b0787 / 5980f5d - lavu 52.6.100 / 52.2.0 - audioconvert.h
Rename audioconvert.h to channel_layout.h. audioconvert.h is now deprecated.
-2012-11-05 - 7d26be6 / dfde8a3 - lavu 52.5.100 / 52.1.0 - intmath.h
- Add av_ctz() for trailing zero bit count
-
2012-10-21 - e3a91c5 / a893655 - lavu 51.77.100 / 51.45.0 - error.h
Add AVERROR_EXPERIMENTAL