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RTCRtpReceiver.getContributingSources

The getContributingSources() method of the RTCRtpReceiver interface returns an array of RTCRtpContributingSource instances, each corresponding to one CSRC (contributing source) identifier received by the current RTCRtpReceiver in the last ten seconds.

Syntax

var rtcRtpContributingSources = rtcRtpReceiver.getContributingSources()

Parameters

None.

Return value

An array of RTCRtpContributingSource instances. Each instance describes one of the contributing sources that provided data to the incoming stream in the past ten seconds.

Specifications

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

Browser compatibilityUpdate compatibility data on GitHub

	Desktop
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari
Basic support	59	12	59	?	No	?

	Mobile
	Android webview	Chrome for Android	Edge Mobile	Firefox for Android	Opera for Android	iOS Safari	Samsung Internet
Basic support	59	59	?	59 Disabled 59 Disabled Disabled From version 59: this feature is behind the `media.peerconnection.rtpsourcesapi.enable` preference (needs to be set to `true`). To change preferences in Firefox, visit about:config.	No	?	7.0

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https://developer.mozilla.org/en-US/docs/Web/API/RTCRtpReceiver/getContributingSources