RTCInboundRtpStreamStats - Web APIs
the webrtc api's rtcinboundrtpstreamstats dictionary, based upon rtcreceivedrtpstreamstats and rtcstats, contains statistics related to the receiving end of an rtp stream on the local end of the rtcpeerconnection.
... properties the rtcinboundrtpstreamstats dictionary is based on the rtcreceivedrtpstreamstats dictionary, whose properties are also available.

RTCStats - Web APIs
for example, statistics about a received rtp stream are represented by rtcreceivedrtpstreamstats.
... rtcstats is the foundation of all webrtc statistics objects rtcrtpstreamstats adds to rtcstats information that applies to all rtp endpoints (that is, both local and remote endpoints, and regardless of whether the endpoint is a sender or a receiver) rtcreceivedrtpstreamstats further adds statistics measured at the receiving end of an rtp stream, regardless of whether it's local or remote.

WebRTC Statistics API - Web APIs
rtcinboundrtpstreamstats rtcreceivedrtpstreamstats rtcrtpstreamstats rtcstats local-candidate statistics about a local ice candidate associated with the connection's rtcicetransports.
... rtcremoteinboundrtpstreamstats rtcreceivedrtpstreamstats rtcrtpstreamstats rtcstats remote-outbound-rtp statistics describing the state of the outbound data stream from the perpsective of the remote peer.

Index - Web APIs
3369 rtcinboundrtpstreamstats api, dictionary, rtcinboundrtpstreamstats, rtp, reference, statistics, stats, local, receiver the webrtc api's rtcinboundrtpstreamstats dictionary, based upon rtcreceivedrtpstreamstats and rtcstats, contains statistics related to the receiving end of an rtp stream on the local end of the rtcpeerconnection.

RTCInboundRtpStreamStats.qpSum - Web APIs
you can, for example, use the value of rtcreceivedrtpstreamstats.framesdecoded if receiving the media or rtcsentrtpstreamstats.framesencoded if sending it to get the number of frames handled so far, and compute an average from there.

RTCRtpStreamStats.qpSum - Web APIs
you can, for example, use the value of rtcreceivedrtpstreamstats.framesdecoded if receiving the media or rtcsentrtpstreamstats.framesencoded if sending it to get the number of frames handled so far, and compute an average from there.

RTCRtpStreamStats - Web APIs
combined with rtcreceivedrtpstreamstats.framesdecoded or rtcsentrtpstreamstats.framesencoded, you can approximate the average qp over those frames, keeping in mind that codecs often vary the quantizer values even within frames.