VideoThumbnails Plugin
Video Thumbnails shows a small preview of the selected moment when a viewer hovers over or drags the player timeline. The plugin builds a sprite from frames of the video.
- Sign in as an administrator.
- Open Admin → Plugins and enable VideoThumbnails.
- Open its parameters and save the preview size and number of clips.
- Play a processed video and move the pointer over its timeline.
| Setting | Effect |
|---|---|
width |
Width of the preview image in pixels |
totalClips |
Number of timeline samples placed in the sprite |
cacheFiles |
Reuses generated files instead of rebuilding them on every request |
The plugin row also has Delete Thumbnails, which clears generated thumbnail sprites so they can be recreated. It does not delete the source video.
Why is no preview shown? Confirm FFmpeg access, file permissions, source-video availability, and that the player has a usable timeline.
Why is the first load slower? A sprite may need to be generated. Keep caching enabled for normal production use.
Will increasing totalClips improve accuracy? It gives more preview points but also increases processing and file size. Test a moderate value first.
