Some questions about QtMultimedia

[aguayro]

I'm working with video files and there are some things i can't figure how to do:
- Any way to get the video file frame size? (width/height)
-Can i overlay a widget over QVideoWdget?
(i need this because when i change the video file, the QVideoWidget becomes transparent for 1 second, causing a blink effect when opens the next file)
-Any way of play looped video? (i think it can be done with signal, but maybe there is an easier way)