W3C home > Mailing lists > Public > public-webrtc@w3.org > August 2011

Media Stastics in API

From: Cullen Jennings <fluffy@cisco.com>
Date: Tue, 30 Aug 2011 12:33:37 -0600
Message-Id: <415678E7-ED76-49E7-AC44-90275CFBDB88@cisco.com>
To: public-webrtc@w3.org

When the browser sends and receives audio and video, all kinds of statistics and reporting information is possible. We get information from IP, ICMP, RTP, RTCP, codecs and more. I feel that applications really need access to some of this information and would like to start a thread on what JS applications need. What I really really really don't want to do is enumerate everything that is possible to generate then expose all that via an API. I'd rather use our experience with existing voice and video to figure out what turns out to be useful and report that. 

Heres is a few things I think might be useful as a starting point 

Packet loss rate in each direction

Round trip time and jitter

Current total bitrate each direction

These three are the most basic bits of information need to detect and understand why an application may be experiencing poor quality media. Thoughts? What else do we need? If you say all of RTCP-XR I am going to release the flying monkeys. 

I'm also interested in a simple API proposal for this that has the right sort of extensibility properties as more things get added over time. 
Received on Tuesday, 30 August 2011 18:34:17 UTC

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