controlling a camcorder
I'm trying to grab video from a Dazzle Hollywood or an ADVC-55. Over both of these interfaces I can grab video by opening iMovie, selecting the interface and pressing "play". However, when I try to grab video with the QTCaptureDevice interface, I just get a blank screen (iSight and other streaming video inputs work... but not these frame grabbers). It seems I need the equivalent of a "play" button in the QTKit API. Anyone know how to do this?