API changes, most recent first:
+2014-11-18 - xxxxxxx - lavu 54.14.100 - float_dsp.h
+ Add avpriv_float_dsp_alloc().
+
+2014-11-16 - xxxxxxx - lavf 56.13.100 - avformat.h
+ Add AVStream.recommended_encoder_configuration with accessors.
+
+2014-11-16 - xxxxxxx - lavu 54.13.100 - opt.h
+ Add av_opt_serialize().
+
+2014-11-16 - xxxxxxx - lavu 54.12.100 - opt.h
+ Add av_opt_is_set_to_default().
+
2014-11-xx - xxxxxxx - lavc 56.6.0 - vorbis_parser.h
Add a public API for parsing vorbis packets.
2014-05-11 - 14aef38 / 66e6c8a - lavu 52.83.100 / 53.14.0 - pixfmt.h
Add AV_PIX_FMT_VDA for new-style VDA acceleration.
-2014-05-xx - xxxxxxx - lavu 52.82.0 - fifo.h
+2014-05-xx - xxxxxxx - lavu 52.82.100 - fifo.h
Add av_fifo_freep() function.
-2014-05-02 - ba52fb11 - lavu 52.81.0 - opt.h
+2014-05-02 - ba52fb11 - lavu 52.81.100 - opt.h
Add av_opt_set_dict2() function.
2014-05-01 - e77b985 / a2941c8 - lavc 55.60.103 / 55.50.3 - avcodec.h
avresample_read() are now uint8_t** instead of void**.
Libavresample is now stable.
+2012-09-26 - 3ba0dab7 / 1384df64 - lavf 54.29.101 / 56.06.3 - avformat.h
+ Add AVFormatContext.avoid_negative_ts.
+
2012-09-24 - 46a3595 / a42aada - lavc 54.59.100 / 54.28.0 - avcodec.h
Add avcodec_free_frame(). This function must now
be used for freeing an AVFrame.