Video Pitcher - getting control
Thomas Henry
tjhjr at mac.com
Mon Sep 15 21:03:59 EDT 2014
James,
Yes, if the display windows are closed, the problem goes away.
Tom
On Sep 15, 2014, at 8:34 PM, James Sentman <james at sentman.com> wrote:
> When you've got video pitcher windows open it tries to use as much CPU as the OS will allow it for processing the streams. It thinks you're looking at it and it wants to deliver the best frame rate possible. So it's doing a lot more processing of the streams and of course it has to decompress and process each frame that comes in. That can take a lot of CPU, and even more if you're recording something in the background at the same time.
>
> When the windows are closed it goes back to just servicing the streams when the OS tells it there is more data, it can reduce frame rates this way but it works much better in the background. It also doesn't actually decode the frames into pictures or do any resizing or redrawing of them if there are no windows open. Even serving the frames out to XTension or the web remote it wont actually decode the jpeg data unless it has to do processing on the frame to re-orient it or something. Saves a lot of otherwise wasted processor cycles.
>
> So it's possible that is all you're seeing, however even when I ran it on my previous way underpowered mini I didn't see delays with the app coming to the front or giving up control. So something is definitely going on here. Does the problem go away if you close the display windows? I might be able to let it stop stealing cycles in the background if thats the problem.
>
>
> On Sep 15, 2014, at 8:12 PM, Thomas Henry <tjhjr at mac.com> wrote:
>
>> I’ve had this ongoing issue, but never thought to ask about it.
>>
>> I currently have only 2 live streams going, and I like to keep them up once in a while just to “keep an eye on things”. However, when I try to click a window (or switch between open apps) to get focus, it takes a pretty along time to get that focus. Make sense?
>>
>> I run XTension, XTdb, Video Pitcher, Weatherman and iTunes all the time, and use a variety of apps during the day. So I regularly have 5-10 gigs available (of 16G) RAM at any one time
>>
>> I do see it’s running about 30-40% CPU on the Activity Monitor, so I’m guessing this is normal behavior. If it is, no worries.
>
> Thanks,
> James
>
>
> James Sentman http://sentman.com http://MacHomeAutomation.com
>
>
>
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