Brian J. Murrell (v4l@xxxxxxxxxxxxxxx): > > Personally I can get an hour per gig using "watchable" quality > > settings of 352x240 > > Why did you choose 352x240? My TV-Out video card requires I set it to > 640x480 for TV-Out so I record in 320x240 so that scaling by 2 in the > x and y directions gives a nice 640x480. Standard NTSC sampling is 720x486 per frame, however all compression standards round to 720x480 these days. Many products output 704x480 instead to account for some overscan, so to downsample your width by a half we get 352x480. And then because we want some cheap progressive action, only capture every second field, so we get 352x240 at half the framerate. -- Billy Biggs vektor@xxxxxxxxxxxx
