Re: ximagesrc is super choppy on Linux on high end hardware...

I'm using GStreamer Java and still trying to understand how make it work 
with Wayland...
not that simple for me since it requires additional knowledge...


Il 25/10/2023 00:58, Nicolas Dufresne via gstreamer-devel ha scritto:
> Hi,
>
> Le mar. 24 oct. 2023, 16 h 00, Davide Perini via gstreamer-devel 
> <[email protected]> a écrit :
>
>     Hi,
>
>     I'm using a simple pipeline like this
>     gst-launch-1.0 ximagesrc startx=0 endx=3800 starty=0 endy=2150 !
>     videoscale ! videoconvert ! autovideosink
>
>     on Ubuntu 23.10 using an AMD Ryzen 9 7950X3D and an Nvidia RTX4090.
>
>     Video drivers are correctly installed since I can play games at very
>     high framerate...
>
>     When I try to record the screen with the pipeline above, the screen
>     became choppy, mouse starts lagging and the screen record get two or
>     three frames per second.
>
>     How this is possible?
>
>
> X11 capture requires copying frames out of the GPU memory, which is 
> very slow on modern GPUs.
>
>
>     What can I do to troubleshoot this problem?
>
>
> I would discourage from spending time on this, and suggest using the 
> screen cast portal and a Wayland session.
>
> Nicolas
>
>
>
>     Thanks
>