Some minor bugs with VLC engine

[derVedro]

• I have checked the FAQ for answers.
• I have checked the Changelog that the issue is not already fixed.
• I believe this issue is a bug, and not a general technical issue, question or feature requests that can be discussed on the forum.

Describe the bug
As a temporary solution to #1443 I use VLC engine as backend. Two issues comes with that backend: the stop button is disabled and track position bar is disabled, so you can not seek into a specific part of the track.

UPDATE:
By the way, there is no scrobling with VLC engine.

System Information:

• Operating system: Ubuntu 24.04
• Strawberry Version: 1.0.23

Screenshot
Strawberry is playing a track but:

[jonaski]

I can't reproduce any issues, tested both with alsa and pulseaudio as output. Progress bar works and stop is possible.

[jonaski]

I suggest to run strawberry in a terminal to see any debug output from VLC.

[derVedro]

I suggest to run strawberry in a terminal to see any debug output from VLC.

There is nothing special in console log. At least I don't see anything there from VLC:
https://pastebin.com/j4pRnR9u

And a grep for VLC in the strace, if you are interested:
https://pastebin.com/uN7LxXyQ

UPDATE: scrobbling works

[jonaski]

The issue is:

04:47:20.674 WARN  unknown                          QObject::connect: Cannot queue arguments of type 'State' 
04:47:20.674 WARN  unknown                          (Make sure 'State' is registered using qRegisterMetaType().) 
04:47:20.674 WARN  unknown                          QObject::connect: Cannot queue arguments of type 'State' 
04:47:20.674 WARN  unknown                          (Make sure 'State' is registered using qRegisterMetaType().) 

This is an issue with Qt 5, not Qt 6.