RTCPeerConnection.getStreamById()

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This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

Obsolete
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.

The RTCPeerConnection.getStreamById() method returns the MediaStream with the given id that is associated with local or remote end of the connection. If no stream matches, it returns null.

This property has been replaced with the RTCPeerConnection.getLocalStreams and RTCPeerConnection.getRemoteStreams properties. If you have code that uses stream, you will need to update, since browsers have begun to remove support for stream.

Syntax

var mediaStream = pc.getStream(id);

Parameters

id
Is a DOMString corresponding to the stream to return.

Example

var stream = pc.getStreamById(myTrackId);
if (stream) {
  console.log("Found stream: " + stream.id);
}

Polyfill

Running the following code before any other code will create RTCPeerConnection.prototype.getStreamById() if it's not natively available.

// from: https://bugs.chromium.org/p/chromium/issues/detail?id=698163&desc=5#c10
RTCPeerConnection.prototype.getStreamById = function(id) {
  try {
    var localStreams = this.getLocalStreams();
    var remoteStreams = this.getRemoteStreams();
    var i;
    for (i = 0; i < localStreams.length; i++) {
     if (localStreams[i].id == id)
       return localStreams[i];
    }
    for (i = 0; i < remoteStreams.length; i++) {
     if (remoteStreams[i].id == id)
       return remoteStreams[i];
    }
  } catch(e) {}
  return null;
}

Specifications

Specification Status Comment
WebRTC 1.0: Real-time Communication Between Browsers
The definition of 'RTCPeerConnection.getStreamById()' in that specification.
Candidate Recommendation Initial specification.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
getStreamByIdChrome No support 56 — 62Edge Full support 15Firefox No support 22 — 53IE No support NoOpera Full support 43
Notes
Full support 43
Notes
Notes Promise-based version.
No support 37 — 43
Safari ? WebView Android No support 56 — 62Chrome Android No support 56 — 62Edge Mobile Full support YesFirefox Android Full support 44Opera Android Full support 43
Notes
Full support 43
Notes
Notes Promise-based version.
No support 37 — 43
Safari iOS ? Samsung Internet Android Full support 6.0

Legend

Full support  
Full support
No support  
No support
Compatibility unknown  
Compatibility unknown
See implementation notes.
See implementation notes.

See also

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