title: How do I get an RTSP stream to play in Mac OS X's Quartz Composer?
body: <p>Putting an rtsp:// stream URL into a Movie patch in Quartz Composer (QC) and rendering it onto a Billboard patch causes QC to hang. A number of commentators on the net have noted that QuickTime uses a different rendering path for streams than for local files, which seems to be the cause of this bug, but I can't find any suggested workarounds.</p>
  
  <p>We want to be able to stream from an IP video camera generating MPEG-4 over RTSP into QC. The same stream URL in standalone QuickTime and VLC works fine.</p>