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The read-only property MediaStreamTrack.readyState returns an enumerated value giving the status of the track.


 var state = track.readyState;


It takes one of the following values:

  • "live" which indicates that an input is connected and does its best-effort in providing real-time data. In that case, the output of data can be switched on or off using the MediaStreamTrack.enabled attribute.
  • "ended" which indicates that the input is not giving any more data and will never provide new data. 



Specification Status Comment
Media Capture and Streams
The definition of 'MediaStreamTrack.readyState' in that specification.
Candidate Recommendation Initial specification.

Browser compatibility

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Feature Chrome Edge Firefox (Gecko) Internet Explorer Opera Safari
Basic support (Yes) (Yes) 50 (50) No support (Yes) ?
Feature Android Android Webview Edge Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile Chrome for Android
Basic support ? (Yes) (Yes) 50.0 (50) No support ? ? (Yes)

See also

Document Tags and Contributors

 Contributors to this page: libbymc, Sheppy, jpmedley, fscholz, teoli
 Last updated by: libbymc,