Have you looked at the Sequence Grabber video channels'
VideoBottleNeck callbacks?
-Brad Ford
QuickTime Engineering
On Jan 20, 2009, at 2:08 PM, Vlado Struhar wrote:
Hi all,
I'm using AJA Kona3 to preview & capture incoming HD video with
Sequence Grabber (getting frames from video data proc to display
them in gl context). All works fine while capturing uncompressed.
But once I set a video compression I get a huge latency of about 1
second.
I need a live preview without any unnecessary delay for my app.
Is there a way to get a frame before sequence grabber compresses it
(in cv or gl form)?
Or is there a way to lower latency by somehow setting compressor to
buffer less frames?
Or is the only way to avoid sq compression and compress on my own
just before storing to disk?
I would appreciate any pointers in right direction.
Thanks,
Vlado
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