W3C home > Mailing lists > Public > public-media-capture@w3.org > May 2013

[Bug 22226] New: Remove check of same source from MediaStream constructor algorithm

From: <bugzilla@jessica.w3.org>
Date: Fri, 31 May 2013 09:08:48 +0000
To: public-media-capture@w3.org
Message-ID: <bug-22226-5753@http.www.w3.org/Bugs/Public/>
https://www.w3.org/Bugs/Public/show_bug.cgi?id=22226

            Bug ID: 22226
           Summary: Remove check of same source from MediaStream
                    constructor algorithm
    Classification: Unclassified
           Product: WebRTC Working Group
           Version: unspecified
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Media Capture and Streams
          Assignee: public-media-capture@w3.org
          Reporter: stefan.lk.hakansson@ericsson.com
                CC: public-media-capture@w3.org

Sub step 2 in 'for each MediaStreamTrack' says

"If track has ended or if there is already a MediaStreamTrack contained within
stream that has the same underlying source as track, then abort these steps and
continue with the next track (if any)."

Denying the possibility to have more than one track with the same source in a
MediaStream made sense back in the days when source and track where more or
less the same thing.

With the development where several tracks can be associated with the same
source, and ask for different operation modes this does not make sense any
more. Rather, it is limiting - having several tracks representing the same
source in one MediaStream can enable e.g. simulcast (by applying different
constraints).

I think we should remove "or if there is already a MediaStreamTrack contained
within stream that has the same underlying source as track," from sub step 2.

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Received on Friday, 31 May 2013 09:08:49 UTC

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