For months I am trying to use embedded coverart from mp4 files as the thumbnail for the respective file in the files app (nautilus I assume).
All videos were downloaded with the yt-dlp utility and the "--embed-thumbnail" flag enabled.
Using ffmpeg afterwards to extract the coverart from the resulting file works just fine, so no problem should be encountered due to the embedding process.
gThumb used to show the coverart as the videos thumbnail, however this isn't the case anymore (I think after upgrading to zorin 17.2).
Now my knowledge is to limited to solve this on my own and trying to create a custom thumbnailer with ChatGPT wasn't successful either.
However I would really appreciate some help with this, since such feature might be of value to others as well and shouldn't be to complicated to implement (with the right skills).
Something similar happened to me when I did a clean installation Z17-Lite. The embeded thumbnails were not showing by default. After a week of searching, I fixed it by installing totem and gstreamer1.0-plugins-bad
sudo apt install totem gstreamer1.0-plugins-bad
after installing these, remove the existing thumbnails cache
As per my knowledge, Nautilus might not natively support using embedded thumbnails for videos.
One potential solution is to use a custom thumbnailer script, but since you’ve had trouble creating one, another approach could be to use a tool like ffmpegthumbnailer to generate thumbnails. You can integrate it with Nautilus to automatically create thumbnails from video files.
