Replace FFmpeg with Libav in licence headers
Signed-off-by: Mans Rullgard <firstname.lastname@example.org>
vorbiscomment: change ff_vorbiscomment_write to take an AVMetadata**patch by Anton Khirnov anton at khirnov dot net
Originally committed as revision 25473 to svn://svn.ffmpeg.org/ffmpeg/trunk
Fix grammar errors in documentation
Originally committed as revision 23904 to svn://svn.ffmpeg.org/ffmpeg/trunk
Add VorbisComment writing to FLAC files.Patch by James Darnley <james darnley at gmail>.
Originally committed as revision 22605 to svn://svn.ffmpeg.org/ffmpeg/trunk