muxer is disabled. The cause is an incorrect #ifdef that assumes that the
ffm_nopts symbol (global define in ffmenc) is present when either ffm muxer
OR demuxer is enabled.
patch by Peter Ross, pross xvid org


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@13573 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b