This function is useful for freeing data structures allocated by
muxers, which currently have to be freed manually by the caller.
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit f124b087eea442b65d809582527dfb5092a3463c)
The bumps are for adding version.h and avio_{get/put}_str functions in
lavf and making av_dlog public in lavu.
Signed-off-by: Janne Grunau <janne-ffmpeg@jannau.net>
