Pyqt QCameraInfo.availableCameras() is empty

Question

I'm doing a small project on Raspberry Pi 4. Also, I want to use QtMultimedia to list all cameras on pi, But it returns an empty list.

# This is my testing code

from PyQt5.QtMultimedia import QCameraInfo

print(QCameraInfo.availableCameras())

I already took a picture via use raspistill so the camera is works.

Answer 1

To read available cameras in PyQt5, you need to install Qt 5 Multimedia module plugins

$ apt install libqt5multimedia5-plugins

Answer 2

from PyQt5.QtMultimedia import *

cmara=QCameraInfo()
for i in cmara.availableCameras():
    print(i.description())