Web/API/VideoTrack/kind

The kind property contains a string indicating the category of video contained in the VideoTrack. The kind can be used to determine the scenarios in which specific tracks should be enabled or disabled. See Video track kind strings for a list of the kinds available for video tracks.

Syntax

var trackKind = VideoTrack.kind;

Value

A DOMString specifying the type of content the media represents. The string is one of those found in Video track kind strings below.

Video track kind strings

The kinds available for video tracks are:

"alternative": A potential alternative to the main track, such as a different video take or a version of the soundtrack with only the music and no dialogue.
"captions": A version of the main video track with captions burnt in.
"main": The primary video track.
"sign": A sign-language interpretation of an audio track.
"subtitles": A version of the main video track with subtitles burnt in.
"commentary": A video track containing a commentary. This might be used to contain the director's commentary track on a movie, for example.
"" (empty string): The track doesn't have an explicit kind, or the kind provided by the track's metadata isn't recognized by the user agent.

Specifications

Specification	Status	Comment
HTML Living StandardThe definition of 'VideoTrack: kind' in that specification.	Living Standard

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`kind`	Chrome Full support 37 Disabled' Full support 37 Disabled' Disabled' From version 37: this feature is behind the `enable-experimental-web-platform-features` preference (needs to be set to `enabled`). To change preferences in Chrome, visit chrome://flags.	Edge Full support 79 Disabled' Full support 79 Disabled' Disabled' From version 79: this feature is behind the `enable-experimental-web-platform-features` preference (needs to be set to `enabled`). No support 12 — 79	Firefox Full support 33 Disabled' Full support 33 Disabled' Disabled' From version 33: this feature is behind the `media.track.enabled` preference (needs to be set to `true`). To change preferences in Firefox, visit about:config.	IE Full support 10	Opera Full support 24 Disabled' Full support 24 Disabled' Disabled' From version 24: this feature is behind the `enable-experimental-web-platform-features` preference (needs to be set to `enabled`).	Safari Full support 6.1	WebView Android No support No	Chrome Android Full support 37 Disabled' Full support 37 Disabled' Disabled' From version 37: this feature is behind the `enable-experimental-web-platform-features` preference (needs to be set to `enabled`). To change preferences in Chrome, visit chrome://flags.	Firefox Android Full support 33 Disabled' Full support 33 Disabled' Disabled' From version 33: this feature is behind the `media.track.enabled` preference (needs to be set to `true`). To change preferences in Firefox, visit about:config.	Opera Android Full support 24 Disabled' Full support 24 Disabled' Disabled' From version 24: this feature is behind the `enable-experimental-web-platform-features` preference (needs to be set to `enabled`).	Safari iOS Full support 7	Samsung Internet Android No support No

Legend

Full support: Full support
No support: No support
User must explicitly enable this feature.': User must explicitly enable this feature.

VideoTrack.kind by Mozilla Contributors is licensed under CC-BY-SA 2.5.