Customize your video tag for the Video.js embed code.
Auto - Automatically set up the player on page load, reading any additional options (in JSON format) from the data-setup attribute.
Sources are used to provide alternative versions of the same video. A single MP4 file is all that's required, but additional WebM and Ogg versions will allow more users to watch your video using HTML5.
Tracks are used to provide timed text including captions, subtitles, descriptions, and chapters. Learn more. Text files on a different server than the page aren't supported yet, i.e. your own files won't work in the test below but will on your own site.