The WebRTC API's RTCTrackEventInit dictionary is used to provide information describing an RTCTrackEvent when instantiating a new track event using new RTCTrackEvent().


RTCTrackEventInit inherits properties from the EventInit dictionary, and also includes the following properties:

The RTCRtpReceiver which is being used to receive the track's media.
streams Optional
An array of MediaStream objects representing each of the streams that comprise the event's corresponding track.
The MediaStreamTrack the event is associated with.
The RTCRtpTransceiver associated with the event.


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

Browser compatibility

FeatureChromeEdgeFirefoxInternet ExplorerOperaSafari
Basic support56 Yes22 No43 ?
receiver56 Yes22 No43 ?
streams56 Yes22 No43 ?
track56 Yes22 No43 ?
transceiver56 Yes59 No43 ?
FeatureAndroid webviewChrome for AndroidEdge mobileFirefox for AndroidOpera AndroidiOS SafariSamsung Internet
Basic support5656 Yes4443 ?6.0
receiver5656 Yes4443 ?6.0
streams5656 Yes4443 ?6.0
track5656 Yes4443 ?6.0
transceiver5656 Yes5943 ?6.0

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Contributors to this page: Sheppy
Last updated by: Sheppy,