This should already be possible, although your mileage will vary depending on the platforms. I have successfully streamed video over the internet into the Engine on Windows. I have not tested MacOS yet.
Please note that we will also add support for video capture hardware soon, which would then allow you to stream directly from a video camera. I’m planning to work on this in February, but can’t promise anything, because GDC is coming up, too, and we’re all super busy
