> > Is there a way I can interpret this data as 640 pixels by N lines of > image data? (i.e. what it would look like if I could just extend the > image region) Not in VBI mode. The bt848 doesn't have any way to scale the data it captures in VBI mode. I'm not sure why you'd want to do this, it's easier to decode the data at a higher resolution. If you want the VBI data to look like image data, you need to adjust the vertical timing so you can capture the VBI area.
