Planned maintenance has been done but it did not solve the problem. So work will continue on this and a new time for trying updates will be announced asap.

Optimizing CPU/RAM usage when playing video with Qt on Raspberry



  • Hi everyone,

    I am using a cross-compiled Qt 5.11.0 for Raspberry pi 3 (built with gstreamer). I have activated openGL drivers (which might be irrelevant here). Now I would like to run an app with several pages, including several videos. On one pages, I have a wheel of 8 videos. All my videos are H264. I have allocated inside /boot/config.txt gpu memory : gpu_mem=256
    I don't no much about videos, and I would like to know if I can do anything else to optimize the RAM and CPU usage of playing those videos ? (which sometimes freeze...) Any trick ? (without reducing the video quality)

    Thank you very much !

    Etienne