I've got what I believe are scheduling problems when ripping a CD via 
dvdreadsrc and re-encoding it to theora/vorbis-in-ogg and writing it to file. 
Using CVS HEAD of both core and plugins. 
 
I've got 3 threads, which are embedded into the top-level thread  
 
Thread 'audio-reencode' (ar): 
 { dvddemux.audio_XX ! queue ! a52dec/mad ! audioscale ! audioconvert ! 
rawvorbisenc ! queue ! oggmux.sink_XX } 
 
Thread 'video-reencode' (vr): 
 { dvddemux.video_XX ! queue ! mpeg2dec ! deinterlace ! videoscale ! 
video/x-raw-yuv,width=xxx,height=xxx ! ffmpegcolorspace! theoraenc ! queue ! 
oggmux.sink_XX } 
 
Thread 'mux-output' (mo): 
 { oggmux ! identity ! filesink location=foo.ogg } 
 
 
Thread 'pipeline' (top-level): 
 { dvdreadsrc ! dvddemux  { audio-reencode } { video-reencode } 
{ mux-output } } 
 
 
The gst-debug=*:5 log can be found here: 
 
 http://scentric.net/tmp/log-dvd-rip-scheduling.bz2  (1.9 MB) 
 
I get this with titles from two out of five DVDs, and it always stops at 
exactly the same spot for the same title. Other titles/DVDs work fine, not 
sure why. 
 
Possibly this is also an oggmux problem, no idea. 
 
Cheers  
 -Tim