Hi tbd,
This sounds like an interesting endevor. I have not tried this and I am not sure how feasible it is. Good luck.
I looked around a bit, and I found this
thread that talks about the Video for Windows API and includes and old, but apparently effective, example program. This may be a good starting point.
Cheers,
Spex
National Instruments
To the pessimist, the glass is half empty; to the optimist, the glass is half full; to the engineer, the glass is twice as big as it needs to be has a 2x safety factor...