reading from decklinksrc also outputs the signal

[David Röthlisberger]

On 1 Dec 2013, at 02:55, Mitchell Foley wrote:
> 
> I have a BlackMagic Intensity Pro, and I'm trying to take an HDMI input source, modify it with a text overlay, and then output it to my TV.

You can't capture & output video at the same time with the Blackmagic
Intensity Pro. When you're capturing, the HDMI output is just a pass-
through. You'll need 2 separate cards to do what you propose. Specify
decklinksrc/sink's "subdevice" property to select amongst more than 1
card in your PC.