RTCRemoteOutboundRtpStreamStats

localId Optional

A string which is used to find the local RTCInboundRtpStreamStats object which shares the same Synchronization Source (SSRC).

remoteTimestamp Optional

A DOMHighResTimeStamp specifying the timestamp (on the remote device) at which the statistics in the RTCRemoteOutboundRtpStreamStats object were sent by the remote endpoint. This is different from the timestamp; it represents the time at which the object's statistics were received or generated by the local endpoint.

reportsSent Optional Experimental

A positive integer indicating the total number of RTCP Sender Report (SR) blocks sent for this synchronization source (SSRC).

roundTripTimeMeasurements Optional Experimental

A positive integer indicating the total number of RTCP Sender Report (SR) blocks received for this synchronization source (SSRC) that contain a DLRR (Delay Since last Receiver Report) block that can be used to derive a valid round trip time. This counter will not increment if the round trip time cannot be calculated.

totalRoundTripTime Optional Experimental

A real number indicating the cumulative sum of all round trip time measurements since the beginning of the session, in seconds. The average round trip time can be computed by dividing totalRoundTripTime by roundTripTimeMeasurements.

bytesSent Optional

A positive integer indicating the total number of bytes sent for this SSRC, including retransmissions.

packetsSent Optional

A positive integer indicating the total number of RTP packets sent for this SSRC, including retransmissions.

codecId Optional

A string that uniquely identifies the object that was inspected to produce the RTCCodecStats report associated with this RTP stream.

kind

A string whose value is "audio" if the associated MediaStreamTrack is audio-only or "video" if the track contains video. This value will match that of the media type indicated by RTCCodecStats.codec, as well as the track's kind property. Previously called mediaType.

ssrc

A positive integer that identifies the synchronization source (SSRC) of the RTP stream that is being sent to the remote endpoint. This value is generated per the RFC 3550 specification.

transportId Optional

A string that uniquely identifies the object that was inspected to produce the RTCTransportStats report associated with this RTP stream.

The following properties are common to all WebRTC statistics objects.

id

A string that uniquely identifies the object that is being monitored to produce this set of statistics.

timestamp

A DOMHighResTimeStamp object indicating the time at which the sample was taken for this statistics object.

type

A string with the value "remote-outbound-rtp", indicating the type of statistics that the object contains.

The RTCRemoteOutboundRtpStreamStats object's remoteTimestamp property provides statistics based on the received data's NTP timestamp taken from an RTCP Sender Report (SR) block. Be aware that the remote clock may not be synchronized with the local clock (either in current time or speed at which time elapses).