On Wed, 26 Jun 2002, Benno Senoner wrote: > My question: what's the best way to capture two images (almost) > simultaneously ? Hi, The video capture process is tied to the frame rate coming from the video source. The video capture card doesn't "clock" for itself. You need your two cameras to be synchronised. Some pro-ish cameras have a facility to lock their frame rates I believe. Failing that, gen-lock devices can be bought to synchronise two video sources. But I suspect that if you just read frames from both cards you'll be fine. The cameras should both deliver frames very close to the "right" rate. v4l2 provides driver generated timestamps so that would simplify staying in step (though, 99%+ of the time you ought to get one-for-one frames). I'd be interested in how it works out. Regards, Steve
