for a Live-Video-Concert I need to redirect a videostream (they use Lifesize-Softphone for broadcasting) into Resolume Arena to use the mapping and live-video editing features. I have some clues about how it could work but found no real usable solutions yet. I'm working with a PC not a Mac, so Syphon is no option

Approch 1: Use a software that converts the LifeSize Stream input into a virtual webcam output and then use it in Resolume. But I found no program that is capable of doing that.
Approach 2: Find a software that replaces LifeSize as a stream client and is capable of redirect the signal into Resolume (probably again as a virtual webcam).
Approach 3: Use a Computer for streaming that gives the signal into a blackmagic SDI Capture device and use this with Resolume. I have no clue if that would work.
Do you have any ideas or experience with it?
Thx,
bbb