Thanks for the confirmation Richard, I've added a report to RQCC for this issue.
I'm a bit perturbed by the combination of the "The PC side works much better
than the Mac side" with "runs with adequate stability even for video grabs as
long as 3-5 minutes". The latter seems to me to be a doubly low standard:
"adequate stability" and "as long as...".
So far my testing (on Mac) with a rig cycling round initialising, setting
settings, preview, capture (for short capture runs at this point, ie 5
seconds) and closing the video grabber has captured approx 2,000 clips over a
nine hour period without evident issues. Should I infer from your remarks
that I got lucky? Is it long grabs (my next set of tests) that is the problem?
Many thanks,
Ben
On 06/08/2010 00:38, Richard Miller wrote:
Ben,
We use the video grabber functions extensively in our software, but only
on PC's (where it runs with adequate stability even for video grabs as
long as 3-5 minutes). The PC side works much better than the Mac side.
The issue you are running into on a Mac is a known bug. You're not doing
anything wrong. But I've not found it a problem to use
revCloseVIdeoGrabber as often as needed (on Mac or PC side)... because
you are right in saying it is the only way to get rid of the preview
image on a Mac.
Richard Miller
On 8/5/10 5:39 PM, Ben Rubinstein wrote:
Docs for revStopPreviewingVideo says:
"Stops showing input from a video camera in the video grabber window."
"Use the revStopPreviewingVideo command to stop showing video input."
"When you stop previewing video, the video grabber window shows a
blank screen."
When I try this (rev 4.0 or later, on MacOS X 10.6) it doesn't show a
blank screen, instead I'm left with a still of the last frame. The
only way to make it go away is to execute revCloseVideoGrabber.
Is this a known bug? Am I doing something wrong? Does anyone else
experience this, or conversely has anyone experience of it working as
documented?
TIA,
Ben
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