I am actually using the original Decklink Duo not the Duo 2, so shouldn’t have any issues with the bi-directional issues.
The overall issue is that I have 16 x Xeon 2.6Ghz, Quad Core, Hyper-threaded Servers with NVIDIA Quadro M2000 cards currently all running SD 720x576 FHA. These servers didn’t quiet have enough ‘grunt’ to handle 1080i50. I got rid of my screen consumer, and CPU usage dropped to below 50% when running in 1080i50, so this is absolutely fine. Fortunately these are dual CPU motherboards, and because of the age of them I can upgrade them with a matched pair of CPU’s for under $150 (Ebay), and give them an extra 8Gb Registered DDR3. I can also upgrade the GPU’s which may help a little, but Caspar dosen’t seem to over use the existing GPU’s (< 50%).
It strikes me that if I can get the final ‘composite’ between all my final CasparCG graphics layer, and my live input performed by the hardware (as I know it can do) i would save a few CPU cycles and improve general performance (and wipe out the latency of the live signal introduced by latency).
<?xml version="1.0" encoding="utf-8"?>