RTCRtpReceiver: getSynchronizationSources() method
The getSynchronizationSources()
method of the RTCRtpReceiver
interface returns an array of
RTCRtpContributingSource
instances, each corresponding to one SSRC
(synchronization source) identifier received by the current
RTCRtpReceiver
in the last ten seconds.
Syntax
js
getSynchronizationSources()
Parameters
None.
Return value
An array of object describing one of the synchronization sources that provided data to the incoming stream in the past ten seconds. These objects contain the following properties:
audioLevel
Optional-
A double-precision floating-point value between 0.0 and 1.0 specifying the audio level (in dBov) contained in the last RTP packet played from this source.
rtpTimestamp
Optional-
The RTP timestamp of the media played out at the time indicated by
timestamp
. This value is a source-generated time value which can be used to help with sequencing and synchronization. source
Optional-
A 32-bit unsigned integer value specifying the CSRC identifier of the contributing source.
timestamp
Optional-
A
DOMHighResTimeStamp
indicating the most recent time at which a frame originating from this source was delivered to the receiver'sMediaStreamTrack
.
Specifications
Specification |
---|
WebRTC: Real-Time Communication in Browsers # dom-rtcrtpreceiver-getsynchronizationsources |
Browser compatibility
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