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This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.

The RTCRtpContributingSource interface of the the WebRTC API provides contains information about a given contributing source (CSRC) including the most recent time a packet that the source contributed was played out.


RTCRtpContributingSource.timestampRead only
Returns a DOMHighResTimeStamp indicating the most recent time of playout of an RTP packet from the source.
RTCRtpContributingSource.sourceRead only
Returns the CSRC identifier of the contributing source.
RTCRtpContributingSource.audioLevelRead only
Indicates the audio level contained in the last RTP packet played from this source. audioLevel will be the level value defined in [RFC6465] if the RFC 6465 header extension is present, and otherwise null.


Specification Status Comment
WebRTC 1.0: Real-time Communication Between Browsers
The definition of 'RTCRtpContributingSource' in that specification.
Working Draft Initial definition.

Browser Compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari (WebKit)
Basic support 59 ? ? ? ?
audioLevel property No support ? ? ? ?
source property 59 ? ? ? ?
timestamp property 59 ? ? ? ?
Feature Android Webview Chrome for Android Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile
Basic support 59 59 ? ? ? ? ?
audioLevel property No support No support ? ? ? ? ?
source property 59 59 ? ? ? ? ?
timestamp property 59 59 ? ? ? ? ?