Replace FFmpeg with Libav in licence headers
Signed-off-by: Mans Rullgard <firstname.lastname@example.org>
rtsp: Factorize out code for opening a chained RTP muxer
The new object file is added to the SDP demuxer in the makefile, since itis needed in both the RTSP muxer and demuxer and in the SDP demuxer, dueto the current code coupling.
Originally committed as revision 25410 to svn://svn.ffmpeg.org/ffmpeg/trunk