pierrepblais

I'm wondering if there is any other way of outputting Hd-SDI signal through BNC output other then the jit.qt.videoout object?

I'm asking this because I'm doing a big performance patch involving mapping and using a lot of gl objects... in order to use the videoout object I have to send my gl.renders to a matrix and then send the matrix to the qt object to output using my Blackmagic decklink card which send Hd-SDI to my projector. That particular chain is extremely CPU intensive (even for my 8-core mac pro). specially when I'm dealing with HD resolution...

the decklink is not a graphic card but a video monitoring card, it's purpose is to take in charge video output in uncompressed format such as HD-SDI signal or SDI for standard def. the screen or projector connected to it is not seen by the system as another window I can use, which is why I can't just use a jit.window.

Why do I want to output that way? Well, because the projector I'll be using is a pro projector that can take that kind of input. Plus, using BNC cables has the advantage of allowing long distances of cabling which in this particular case is important, and HD-SDI is a more accurate and high-quality signal then VGA. maybe it's my background in movie post-production too... ;)

outputting-hd-sdi

I've had good luck with this type of converter, as long as you set the computer to output a standard HD resolution. All you need is a DVI to HDMI cable and $280 for the unit.

http://www.markertek.com/Video-Equipment/Video-Processors/HDMI-Converters/Blackmagic-Design/BMD-CONVMHS.xhtml

you know, I should have thought about that... I even remember seeing that product and thinking "hmm that could be useful".

outputting HD-SDI