The read-only source property of the RTCRtpContributingSource interface returns the source identifier of a particular stream of RTP packets. The value is the contributing source (CSRC) or synchronization source (SSRC) identifier, depending on whether the object is an RTCRtpContributingSource or RTCRtpSynchronizationSource, which is based on the former.


var sourceID = RTCRtpContributingSource.source


An unsigned, 32-bit integer value which uniquely identifies the source of RTP packets described by this RTCRtpContributingSource (in which case the value is a CSRC identifier) or RTCRtpSynchronizationSource (the value is an SSRC identifier).


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

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