One of the things that Dolphin does not have after a default installation is the display of video file thumbnails. New KDE file manager users often wonder why the vast majority of files are previewed with thumbnails except for videos, although this is something that can be easily fixed by installing the package kffmegthumbnailer.
The package is not usually installed by default on Kubuntu – or other distributions – for licensing issues. To install, just open a console and enter the command:
sudo apt-get install kffmpegthumbnailer
We accept the installation of the package and its dependencies, and proceed to close the console.
The next thing is to ask Dolphin to create the thumbnails of the video files, for this we open Dolphin and go to control, we selected Configure Dolphin. In the configuration menu go to the section General and then select the tab Thumbnails. We check the option kffmpegthumbnailer -and some of the others available if we feel like it-, we apply the changes and we accept.
With this we can now view thumbnails of video files.
Alternatively we can install the package ffmpegthumbnailer. However, some users find this option slower when creating thumbnails folders with a lot of video files while the kffmpegthumbnailer it usually does the job much faster.
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