Hey, On Tue, 2003-05-20 at 04:15, Macca .. wrote: > What exaclty is the difference between grab display and overlay? Grabdisplay captures to memory (DMA, PCI->RAM). Overlay goes directly to the video card (PCI->PCI). > The reason I ask is that I need to write a program (or possibly reuse one) > that needs to display video and capture it to the hard disk at the same > time. It was my understanding (I am new to V4L so I'm probably wrong) that > if you use overlay mode you cannot do this? True. I'm working on achieving this with GStreamer. We can do it with sound already, I want to do the same using video (video->screen isn't hard, but video->disk is being worked on right now). > One other issue I am having with xawtv is that when I make the window > fullscreen the picture disappears in overlay mode. It goes black and all I > get is a small bar maybe (10 cms across by 1 cm down) of meaningless colour > on the screen.... Yes, that's a PCI problem. Didn't look at it yet in detail. Ronald
