QAbstractVideoSurface latency problem

  • I'm using a QAbstractVideoSurface to grab video frames from a webcam. It works great but for one problem.
    It will only present frames (Qt framework calls the present method) at 12 fps. I've gone as far as hardcoding (as a test) the FPS setting directly in the AVFramework driver (on mac, in the qtmultimedia plugin code) to 30. I know my webcam supports 30.

    Does anyone know if this latency is expected and if there is any way to get closer to 30 fps?

Log in to reply

Looks like your connection to Qt Forum was lost, please wait while we try to reconnect.