not only media player has this problem.
When I try to use SoundEffectVPlay, the Audio gets high pitched from time to time (on Android) and some of the sounds just come out stuttering.
Non of the “Video”‘s (1-2 sec long) are working on Android at all as well (but I know that this one is Qt issue, too).
PS. Testing it on Windows 10 works. Only Android 6.0 is problematic.
PPS. Scenes don’t fill the GameWindow completely. I can poste all the problems somewhere else 🙂