This demonstrates the JW Player's ability to show thumbnails for points in the video.
*This example uses the JW Player version 6.7
These thumbnails can provide a nice and simple way for viewers to quickly scan through a video and skip to a scene of their choosing. Setting up the thumbnails requires a simple .vtt file. Here is an example of a .vtt file being used for thumbnails:
There are a couple of things worth noting. Firstly, the JW Player does no resizing of the image files for you, so you must make the images uniform sizes yourself. Secondly, the .vtt file can be made in any text editor (such as notepad, for example), but you must make sure it saves as a .vtt and not a .vtt.txt file. The webserver hosting the player must also have the text/vtt mimetype set for the thumbnails to work.
You should always save your .vtt files in UTF8 encoding to prevent character issues using the 'Save As' option.
For more information, check out JW Player's official instructions here.