Web/API/MediaStream/addTrack

The MediaStream.addTrack() method adds a new track to the stream. The track is specified as a parameter of type MediaStreamTrack.

If the specified track is already in the stream's track set, this method has no effect.

Syntax

stream.addTrack(track);

Parameters

track

A MediaStreamTrack to add to the stream.

Return value

undefined

 

Specifications

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

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
addTrack	Chrome Full support 26	Edge Full support 12	Firefox Full support 44	IE No support No	Opera No support No	Safari Full support Yes	WebView Android Full support 37	Chrome Android Full support 26	Firefox Android No support No	Opera Android No support No	Safari iOS Full support Yes	Samsung Internet Android Full support 1.5

Legend

Full support  

Full support

No support  

No support

See also

• MediaStream, the interface it belongs to.

MediaStream.addTrack() by Mozilla Contributors is licensed under CC-BY-SA 2.5.