How to stop qml camera and free ressource correctly?

MHermann

Hello,

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?

Kind regards,
MHermann

Unsolved How to stop qml camera and free ressource correctly?