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This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.

The MediaStream() constructor returns a newly-created MediaStream, either empty or containing tracks, provided as an argument.


stream = new MediaStream();
stream = new MediaStream(stream);
stream = new MediaStream(tracks[]);


Another MediaStream containing tracks to add.
An Array of MediaStreamTracks to add.

Return value

A newly-created MediaStream object, either empty, or containing the tracks provided, if any.


Specification Status Comment
Media Capture and Streams
The definition of 'MediaStream' in that specification.
Editor's Draft  

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 56.0 44 (44) No support ? No support
Feature Android Webview Chrome for Android Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile
Basic support No support No support 44.0 (44) ? No support ? No support

See also

Document Tags and Contributors

 Contributors to this page: jpmedley, bunnybooboo, Jib
 Last updated by: jpmedley,