Considerations for Selecting RTCP Extended Report (XR) Metrics for the RTCWEB Statistics API

V. Singh, R.Huang, R. Even, D. Romascanu, L. Dengli
Toronto, IETF 90
22. July 2014

Transcript

1. Considerations for Selecting RTCP Extended Report (XR) Metrics for the RTCWEB Statistics API! V. Singh, R.Huang, R. Even, D. Romascanu, L. Deng! ! Toronto, IETF90 ! ! http://tools.ietf.org/html/draft-huang-xrblock-rtcweb-rtcp-xr-metrics-03!
2. Changes in -04! •  Explained the interaction of the JS API and RTCP Extended Reports (XRs).! •  Removed ECN metrics! •  Merged additional-stats (section 6)!
3. Architecture 21/07/14 3 Browser Browser WebRTC JS APP WebRTC JS APP RTP, RTCP SR and RR query StatsAPI() routinely RTCP XR •  Outgoing stream metrics •  Incoming stream metrics Browsers independently measure metrics for the outgoing and incoming streams
4. List of proposed metrics! •  Packets and octets Discarded! •  Cumulative number of packets repaired! •  Burst packet loss and discarded! •  Frame impairment metrics!
5. Next steps! •  This draft depends on draft-alvestrand-stats-registry — expired?! •  Currently a living document — https://www.w3.org/2011/04/webrtc/wiki/Stats ! statsAPI discussion: http://lists.w3.org/Archives/Public/public-webrtc/2014May/0107.html ! •  Next steps: working group adoption?!