Not sure if what I want to do is the same thing asked in this post:
But: could CamTwist send Mac video out on the Firewire (400 or 800) port? I saw that there was a programme called Center Stage a few years back and that FCP can do it, but not in a way that is very usable.
If CamTwist worked with something like ProVideoPlayer then a sequence of video assets could be set up and triggered in PVP to go out through CamTwist via FW to an external video switcher such as the Datavideo SE-800DV as another input source.
Hope that makes sense! Sorry I am not a programmer but wondered if this was possible.