Hallo ,
I have installed Allvideo on my joomla site and it is working well. The only thing is that the videoplayer alwas is zooming to the pixel size of the video. I can put 400,400 px so at the opening for a short moment I will see this size then the player is zooming to the videosize which is bigger than the monitor. ( I am unsing firefox 75.0 and the videofiles are local)
Also on my tablet.

On my smartphone it is resizing to the monitorsize. Here it is working well.

Need help for a non profit organisation.
My testsite can be viewed under :
indicamino.de/m-veranstaltungen18/m-vortraege18/testlink