Dolphin shows video file thumbnails, but not embedded thumbnails

[tarial]

For some reason Dolphin does show thumbnails for video files (MP4), but not the embedded thumbnails (PNG). ffprobe and Kid3 confirm the thumbnails are actually embedded and are different from the thumbs Dolphin shows. Dolphin does show album/cover art for audio files correctly.

Both ffmpegthumbs and ffmpegthumbnailer are installed.

Any idea what I could to check to make Dolphin show embedded thumbs for video files?

[flyingcakes]

ffmpegthumbnailer has -m flag to ask it for using embedded thumbnails.

man ffmpegthumnailer

       -m     : prefer embedded image metadata over video content

I’d edit /usr/share/thumbnailers/ffmpegthumbnailer.thumbnailer

On the line with

Exec=ffmpegthumbnailer -i %i -o %o -s %s -f

I’ll append -m, so it looks like

Exec=ffmpegthumbnailer -i %i -o %o -s %s -f -m

Save it and exit.

You probably will need to delete ~/.thumbnails (or wherever Plasma stores thumbnails) to trigger it to regenerate thumbs. Otherwise, I believe it uses the cache.

I don’t have KDE Plasma to test at the moment, but you could give this a shot.

Edit: I’m assuming dolphin does use ffmpegthumbnailer

[tarial]

That did the trick! Thanks