BlackMagic Recorder, 5.5

Hi, we are using 5.5 on Mac OS, so AV Pro Live Camera is not an option.
We need to get the stream from a Blackmagic recorder capture card into a Unity 5.5 texture. Doesn’t seem like this should be so hard but my whole project is about to miss deadline because of this issue that should be simple.

I will payPal or Venmo anyone who can help!! need help today 2/22/2017.

Well, in case anyone needs to know in the future…
We are using ManyCam to map the BM capture card to a camera device, and Unity can then see it.
Looks like super-low latency, a frame or two at most.