Building Interactive HTML5 Videos ✩ Mozilla Hacks – the Web developer blog

The HTML5 <video> element makes embedding videos into your site as easy as embedding images. And since all major browsers support <video> since 2011, it’s also the most reliable way to get your moving pictures seen by people.

A more recent addition to the HTML5 family is the <track> element. It’s a sub-element of <video>, intended to make the video timeline more accessible. Its main use case is adding closed captions. These captions are loaded from a separate text file (a WebVTT file) and printed over the bottom of the video display. Ian Devlin has written an excellent article on the subject.

Beyond captions though, the <track> element can be used for any kind of interaction with the video timeline. This article explores 3 examples: chapter markers, preview thumbnails, and a timeline search. By the end, you will have sufficient understanding of the <track> element and its scripting API to build your own interactive video experiences.

via Building Interactive HTML5 Videos ✩ Mozilla Hacks – the Web developer blog.

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