Screen recording and Nvidia acceleration

[Davide Perini]

If not, is it possible to say gstreamer to capture the frame only if 
"something changed on the screen"?
Is it possible to reduce the CPU load by reducing capture quality?

Basically I need to capture some areas of the screen (100 areas of 50x50 
pixel size) 30 times per second.
Once captured the screen, I need to get only the average color of that 
area. Nothing more.

What are the possible optimizations for my purpose?

Thanks
Davide

Il 05/08/2020 14.05, Davide Perini ha scritto:
> I need to capture 100 regions of 50 pixel,
> not an entire 3840x2160 screen if possible...
>
> At 4K, grabbing the entire screen at 30 fps is pretty expensive.
>
> Is this possible?
>
> Thanks
> Davide
>
> Il 05/08/2020 12.31, Neil C Smith ha scritto:
>> On Wed, 5 Aug 2020 at 11:22, Davide Perini 
>> <perini.davide at dpsoftware.org> wrote:
>>> I don't need big quality or sync, I only need to record the screen 
>>> to get colors on an X,Y point of the screen.
>>> So I don't really need to capture all the screen.
>> What exactly does "don't really need to capture all the screen" mean?
>> A contiguous sub-region?  That element supports x, y, width and height
>> properties I believe from earlier conversations on this?
>>
>> Best wishes,
>>
>> Neil
>>
>
> _______________________________________________
> gstreamer-devel mailing list
> gstreamer-devel at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/gstreamer-devel