[rtcweb] DataChannel Questions

Roman Shpount <roman@telurix.com> Mon, 22 July 2013 18:15 UTC

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Date: Mon, 22 Jul 2013 14:15:16 -0400
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From: Roman Shpount <roman@telurix.com>
To: rtcweb@ietf.org
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Subject: [rtcweb] DataChannel Questions
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I am sorry if I missed this somewhere in the draft, but I got two
DataChannel related questions:

First question: is it possible to bundle DataChannel with DTLS-SRTP? I do
not see how this can be implemented since DTLS in DataChannel can negotiate
any encryption protocol and I do not see a simple way to de-mux this on the
wire. Just wanted to confirm that bundling is not something that is planned
to be supported.

Second question: is there a way to time synchronize DataChannel messages
and real time media? For instance I want to use DataChannel for a subtitle
track, is there a way to synchronize messages with video track?
Roman Shpount