Black Magic Decklink Quad.

Supported cards and issues

Black Magic Decklink Quad.

Postby seanbranagh » Tue Jun 28, 2011 2:31 am

I have been using a Decklink Quad with Unreal Live server version 8.
During fast moving pictures the video becomes jerky as if the computer does not have enough processing power however the machine has 12 cores and is only reaching about 20% processor usage while encoding.
I have tried absol;utely every setting within the Black Magic control; panel and the live server.
Is there anything else I can try to improve the video?
seanbranagh
 
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Re: Black Magic Decklink Quad.

Postby admin » Sun Jul 03, 2011 11:04 am

What codec are you using in Live Server?
Try encoding with WMV/h.264. Also try streaming unompressed video and see if this makes a difference.

If the above doesn't help, I wonder if it is a capture part that causes the problem.

Do you have jerky video when capturing using their software?
Can you choose "capture hardware-compressed video" with Live Config, and do not apply software compression.
Install MJPEG codec (read our FAQ page) if you need to.

Let me know the results.
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Re: Black Magic Decklink Quad.

Postby seanbranagh » Fri Jul 22, 2011 6:01 am

Hi, many thanks for the help with this. H264 solved this issue using version 8 of the Live Server.
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