lotech wrote:It is possible although you can't use the Decklink Quad to do output at all. As a result you'll need to look at a triplehead2Go or Datapath X4 to get multiple outputs.
Based on my experiments you'll need to limit the amount of processing you're doing to keep camera sync. Using a MacMini i7 capturing in HD-SDI via Quartz and then running into MadMapper @ 720P50 the delay was minimal, but when running it through Modul8 it ended up causing a 1-2 sec delay.
I have recently built a new hackintosh with a decent GTX580 gpu and can capture a single 1080P25 feed into Resolume, layer 2 clips on top and output @ 1080 and have realtime output. Your desired 4x inputs + 3x outputs might work on spec'd MacPro or Hackintosh but probably won't cut it on a MBP. The more powerful the computer the better and I would say that in all likeliness you'll need a MacPro with multiple graphics cards to really get real time output properly.
Also currently MadMapper doesn't support multiple outputs so unless you use a TH2Go/Datapath your stuck with only 1 output anyway.
Thanks for the reply. That's disappointing. I was hoping to be able to use Modul8 as a live camera switcher with a MacBookPro. Guess not!