Unsolved How to stop qml camera and free ressource correctly?
I am using qml camera and videoOutput to view live streams of multiple usb webcams.
I start the cameras one by one. I do not use multiple cameras at the same time.
Now I recognized that after stopping a camera via the stop() method of qml camera, that the resource, e.g. /dev/video0, in Raspbian is still in use.
lsof /dev/video0 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME app 901 pi 33u CHR 81,1 0t0 9580 /dev/video0
What do I have to do in my application to free this device completey? Is the stop() method of the qml camera not sufficient?