gstreamer VOB to ogv pipeline

gistfile1.txt

cat $VOBFILES | gst-launch \
  filesrc location=/dev/fd/0 \
  ! dvddemux name=demux \
  demux.current_audio \
  ! queue \
  ! a52dec \
  ! audioconvert \
  ! audioresample \
  ! vorbisenc \
  ! mux. \
  demux.current_video \
  ! queue \
  ! mpeg2dec \
  ! ffmpegcolorspace \
  ! theoraenc \
  ! mux. \
  oggmux name=mux \
  ! filesink location="$OUTFILE"