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Re: Stats proposal, updated

From: Harald Alvestrand <harald@alvestrand.no>
Date: Tue, 14 Aug 2012 08:52:38 +0200
Message-ID: <5029F5B6.3010203@alvestrand.no>
To: "Cullen Jennings (fluffy)" <fluffy@cisco.com>
CC: "public-webrtc@w3.org" <public-webrtc@w3.org>
On 08/13/2012 05:14 PM, Cullen Jennings (fluffy) wrote:
> can you say a bit more about what would be in
>     "SRC groups (for Simulcast grouping etc)"
My thinking would be that the stats call returns stats on each SSRC, and 
the groups attribute gives details on which groups this SSRC 
participates in - probably an unique ID for the group and the type of group.
> Also on the Echo Return Loss… I'm assuming this only works for a bi direction Track?
Bidirectional tracks don't exist. I think it doesn't matter so much 
which track(s) we report it on, as long as it's consistent. According to 
my understanding, echo cancellers tend to be more useful the more global 
they are, so it may be that we should only report this as a 
whole-browser statistic - or alternatively report the same number on 
every track queried.
> On Jun 21, 2012, at 6:24 AM, Harald Alvestrand <harald@alvestrand.no> wrote:
>> As usual, apologies for the formatting, and errors in the WebIDL is a certainty, not a possibility.
>> I've tried to insert the level of indirection that allows us to return a set of objects for (say) a media stream with FEC that uses multiple SSRCs rather than just a single object.
>> Comments welcome!
>>                     Harald
>> <WebRTCStatistics-HTAproposal.pdf>
Received on Tuesday, 14 August 2012 06:52:27 UTC

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