2011-05-XX - XXXXXX - lavfi 2.6.0 - avcodec.h
Add avfilter_get_video_buffer_ref_from_frame() to libavfilter/avcodec.h.
+2011-06-07 - a6703fa - lavu 51.4.0 - av_get_bytes_per_sample()
+ Add av_get_bytes_per_sample() in libavutil/samplefmt.h.
+ Deprecate av_get_bits_per_sample_fmt().
+
2011-06-xx - xxxxxxx - lavu 51.3.0 - opt.h
Add av_opt_free convenience function.