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Re: [webrtc-stats] Track stats: track or attachment?

From: henbos via GitHub <sysbot+gh@w3.org>
Date: Mon, 09 Jan 2017 09:15:32 +0000
To: public-webrtc-logs@w3.org
Message-ID: <issue_comment.created-271238251-1483953330-sysbot+gh@w3.org>
I like this idea. Supposedly the caller cares about a track and all of
 its attachments and this gives that, per-attachment track stats. It 
also means that the change to the spec and implementations are minor 
since the dictionary does not have to change.

Whether or not we want RTP sender/receiver stats I don't think that 
can cover per-track stats since a sender can change which track it is 
using and that could happen in-between calls to getStats and track 
stats accumulate over time. Even if possible that sounds like a really
 big hassle for a caller interested in tracks.

@jan-ivar The RTCMediaStreamTrackStats.trackIdentifier[1] will have 
the value of MediaStreamTrack.id[2]. If we have one 
RTCMediaStreamTrackStats per attachment, the multiple attachment case 
would mean multiple stats objects have the same trackIdentifier.


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