Well, thanks for checking in, ls.
After trying all VDub versions I could find, pretty sure with all the right drivers, it seemed to be a battle between 720 and Preview.
So I decided to delete everything I'd installed and start again. As I finished I saw a 30-day trial offer of 64-bit Pinnacle Studio. I thought it might be useful as a debugging tool, especially w/r/t drivers for the -710. Naturally, it worked perfectly the first time. Then I successfully installed 64-bit
huffyuv and lagarith codecs (because I noticed Studio supported only M-JPEG) but Studio didn't recognize them (even though 64-bit vDub did). The quality from Studio is noticeably worse.
Then I tried the 32-bit 1.9.11 VDub you packaged up, without installing anything else or even fixing ffvdub.vdf, and I find if I power up the workflow and let it sit for a while, the 32-bit 1.9.11 seems to work almost all the time. I get the Preview (sometimes have to fiddle with Preview Acceleration, or disconnect from the -710 a couple of times). Once it works it seems to stay working.
One bonus is that the Pinnacle Studio install seems to have installed a more fully-featured crossbar for the Pinnacle-710. Besides being accessible from "Video > Capture Filter..." you can also launch Crossbar Thing, open the crossbar, and use the proc amp dialog box in real time, which is cool. For me, anyway ;-)
So I think I am "done enough" with capture, but I didn't replace ffvdub.vdf (it's still not loading per the log) and vDub seems to handle YUY2 natively. How do ffvdub.vdf and ffdshow fit into the big picture?
