The JW Player is one of the most popular open-source media players. It’s easy to set up and it supports many different media formats. It’s also very extensible through a library of plugins that includes a captions plugin for accessibility. This article shows you how to use the JW captions plugin to add closed captions to your JW Player with the help of 3Play Media.
First you will have to set up your JW Player if you haven't done so already.
See more information on setting up your JW Player.