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This feature is obsolete.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. |
Working Draft | Initial specification. |
Browser compatibility
Feature | Chrome | Edge | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|---|
Basic support | (Yes) [1] | (Yes) | (Yes) [1] | No support | (Yes) | ? |
Removed | 62 | ? | ? | ? | 49 | ? |
Feature | Android Webview | Chrome for Android | Edge | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|---|---|
Basic support | (Yes) [1] | (Yes) [1] | (Yes) | ? | No support | ? | ? |
Removed | 62 | 62 | ? | ? | ? | 49 | ? |
[1] Though this method is not prefixed, the interface it belongs to was until Chrome 56.