The RTCRemoteOutboundRtpStreamStats dictionary of the WebRTC API is used to report statistics for the remote endpoint's outbound RTP stream corresponding to an inbound stream that is currently received by an RTCPeerConnection object.

The statistics can be obtained by iterating the RTCStatsReport returned by RTCPeerConnection.getStats() until you find a report with the type of remote-outbound-rtp.

In addition to the properties defined by RTCSentRtpStreamStats and its underlying RTCRtpStreamStats dictionary, RTCRemoteOutboundRtpStreamStats defines the following properties.

localId

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

remoteTimestamp

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.

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).