Web/API/MediaStreamTrack/getCapabilities

The getCapabilities() method of the MediaStreamTrack interface returns a MediaTrackCapabilities object which specifies the values or range of values which each constrainable property, based upon the platform and user agent.

Once you know what the browser's capabilities are, your script can use applyConstraints() to ask for the track to be configured to match ideal or acceptable settings. See Capabilities, constraints, and settings for details on how to work with constrainable properties.

Syntax

const capabilities = track.getCapabilities()

Return value

A MediaTrackCapabilities object which specifies the value or range of values which are supported for each of the user agent's supported constrainable properties.

Specifications

Specification	Status	Comment
Media Capture and StreamsThe definition of 'getCapabilities()' in that specification.	Candidate Recommendation	Initial definition.

Browser compatibility

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.

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
getCapabilities	Chrome Full support 66	Edge Full support 12	Firefox No support No	IE No support No	Opera Full support 53	Safari Full support Yes	WebView Android Full support 66	Chrome Android Full support 66	Firefox Android No support No	Opera Android Full support 47	Safari iOS Full support Yes	Samsung Internet Android Full support 9.0

Legend

Full support  

Full support

No support  

No support

MediaStreamTrack.getCapabilities() by Mozilla Contributors is licensed under CC-BY-SA 2.5.