Bug 470055

SUMMARY
***
Hi,
I'm attempting to play a video file on Plasma Bigscreen running on aarch64 target. The issue is that mpv is able to open and play the video even with HW acceleration.

However, the integrated QT player Plank Player does not even open the video.


STEPS TO REPRODUCE
1. Install PostmarketOS onto the X96 Mini Android TV Box
2. Copy some video file to the box and run Plank Player

OBSERVED RESULT
No video played. No visual dialog about the issue. Running from the Konsole shows this message:

```
~ $ plank-player file:///home/user/Topgun.avi
qt.qpa.wayland: qtvirtualkeyboard currently is not supported at client-side, use QT_IM_MODULE=qtvirtualkeyboard at compositor-side.
qt.qpa.wayland: Wayland does not support QWindow::requestActivate()
qml: /home/user
GStreamer; Unable to play - "file:///home/user/topgun.avi"
Error: "Internal data stream error."
```

EXPECTED RESULT
Well at least some dialog window about error or in the best case get the video stream.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
Linux /KDE Plasma: PostmarketOS v22.12
(available in About System)
KDE Plasma Version:  5.27.5
KDE Frameworks Version: 5.106.0
Qt Version: 5.19.9
Kernel version: 6.2.9
Graphics platform: Wayland

ADDITIONAL INFORMATION
Plank-Player version: 5.27.5-r1