[Bug 21878] New: Unable to learn of unknown inbound media

https://www.w3.org/Bugs/Public/show_bug.cgi?id=21878

            Bug ID: 21878
           Summary: Unable to learn of unknown inbound media
    Classification: Unclassified
           Product: WebRTC Working Group
           Version: unspecified
          Hardware: All
                OS: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: WebRTC API
          Assignee: public-webrtc@w3.org
          Reporter: martin.thomson@skype.net
                CC: public-webrtc@w3.org

Bug #21877 notes that there are situations where media can arrive unannounced. 
In that case, the media arrives prior to an answer and there is an expectation
that ultimately the inbound media will be dealt with.

However, it's possible that packets could arrive that the browser did not offer
to receive.  Media with unexpected SSRC or packet types such that
identification of a correct MediaStreamTrack is not possible.

For diagnostic purposes, it is helpful to inform an application of this media
because it is often a result of misconfiguration or programming error. 
Surfacing this information is highly valuable, especially when applications are
forced to create or manipulate SDP in order to get things to work.

CU-RTC-Web defines an event for unknown media (see also #21877).  This turns
out to be a valuable tool.

There is also a potential need to identify other unannounced noise (SCTP
associations or DTLS handshakes).

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Received on Tuesday, 30 April 2013 17:14:44 UTC