slow revVideoFrameImage

[Doug Lerner]

On 2/4/04 12:47 PM, "Thomas McGrath III" <3mcgrath at adelphia.net> wrote:

> Are you sure it is the reVideoFrameImage that is the hog?

Yes.

> Because if it is the send then you might need a "with messages"
> or if it is a socket issue then you might need a "with messages"

I am already doing the socket stuff with "with messages" and can send and
receive a 1MB file with no slowdown in the app at all, even if I display an
updating progress bar. The "with messages" thing is great.

So it seems the revVideoFrameImage command itself is causing the app to
pause while it finishes the video grab.

doug


> 
> I actually can't remember which needs it.
> 
> HTH
> 
> Tom
> 
> On Feb 3, 2004, at 10:18 PM, Doug Lerner wrote:
> 
>> I am calling revVideoFrameImage periodically and sending the grabbed
>> frame
>> over a socket. The problem is that the revVideoFrameImage command
>> itself
>> takes a noticeable amount of time: 1/4 - 1/2 second on my machine, 1
>> second
>> or more on slower machines.
>> 
>> In this app, at the same time people are doing other things, like text
>> input, etc. But during revVideoFrameImage everything else stops.
>> 
>> Is there a way of not having revVideoFrameImage itself hog the whole
>> cpu
>> when it does its frame grab?
>> 
>> Thanks,
>> 
>> doug
>> 
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>> 
>> 
> 
> Thomas J. McGrath III
> SCS
> 1000 Killarney Dr.
> Pittsburgh, PA 15234
> 412-885-8541
> 
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