[Bug]: Black wallpaper even tho i'm using GStreamer on arch, the QML video player doesn't give any error

[redmine4404]

I have:

• [X ] Searched if this issue hasn't been reported yet.
• [ X] Verified that I am using the latest version (run grep '"Version"' {~/.local,/usr}/share/plasma/wallpapers/luisbocanegra.smart.video.wallpaper.reborn/metadata.json or from Wallpaper settings > top right corner for version 1.0.0 and later), should be the same as https://github.com/luisbocanegra/plasma-smart-video-wallpaper-reborn/releases/latest

Describe the bug
When i applie the video wallpaper, the background become blackeven tho i hava installed GStreamer and all of his plugin. When i launch the QML video player test, the player doesn't crash but show only a grey font.

Expected Result
The video show successfuly in background or the QML video player test to crash and give the error.

**Screenshots
qml_video_test_log.txt

System information (please complete the following):

• Operating System: Arch Linux
• KDE Plasma Version: 6.2.5
• KDE Frameworks Version: 6.10.0
• Qt Version: 6.8.1
• Graphics Platform: x11
• Things in your system that might be relevant: nothings

I'm using a NVIDIA geforce 3060 with the driver version : 565.77

[luisbocanegra]

Can you switch back to ffmpeg backend by removing the environment variable, check that you have qt6-multimedia-ffmpeg installed and do the test with the second file testMediaPlayer.qml

QT_FFMPEG_DEBUG=1 QSG_INFO=1 QT_LOGGING_RULES="*.debug=true" qml6 testMediaPlayer.qml 2> qml_video_ffmpeg_log.txt 

The output of the following too please

QT_FFMPEG_DEBUG=1 QSG_INFO=1 QT_LOGGING_RULES="qml.debug=true" plasmashell --replace > plasmashell.txt 2>&1

[redmine4404]

With the QT_MEDIA_BACKEND reset to nothing :
plasmashell.txt
qml_video_ffmpeg_log.txt

[luisbocanegra]

Thanks, will inspect them later today

[luisbocanegra]

Sorry for the late reply, this might be a nividia or codecs issue, can you reproduce the bug while reading the journal output to a file?

1. Run journalctl -f > plasmashell.log
2. Switch from image wallpaper to video wallpaper
3. After you see the blank screen stop the journalctl command
4. Attach plasmashell.log here

If it's a codecs thing installing a media player (like mplayer) on arch will most likely pull the most important ones and may fix the problem

[redmine4404]

Here : plasmashell.log

[redmine4404]

After installing mplayer, i can play a video with it but the video wallpaper still doesn’t work, also Haruna doesnt seem to be able to read the video.
(Sorry for late response.)

[luisbocanegra]

If Haruna fails too this is a Nvidia/ffmpeg/Qt problem

There are a lot of errors like this in your log, I suspect that could be the reason.

qt.multimedia.ffmpeg.utils: Failed to retrieve config 0 for codec comfortnoise with error -22 "Argument invalide"

If you file a bug to Haruna developers they might be able to figure out the problem, you can do so here https://bugs.kde.org/enter_bug.cgi?product=Haruna&component=generic