Generate all the files (.vtt + sprite) for the Tooltip Thumbnails options of Jwplayer

Question

What is the best way to generate the \".VTT\" file and the jpg sprite attached with it for the Tooltip Thumbnails of Jwplayer (http://www.jwplayer.com/blog/

Answer 1

I made a free web app to do this: https://www.videohop.com.au/thumbnail-generator

Drag in a video file, and it'll give you a zip file containing thumbnail sprites + VTT file(s). Supports multiple quality sets. (E.g., 60p + 180p.)