Set AVStream.discard, so that demuxers can choose which stream to select if that is a serverside option (as is the case for RTSP). See "Realmedia patch" thread on mailinglist.



git-svn-id: file:///var/local/repositories/ffmpeg/trunk@14825 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b