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Re: [rtcweb] Symmetric RTP and uni-directional media streams

Harald Alvestrand <harald@alvestrand.no> Thu, 01 September 2011 15:50 UTC

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Date: Thu, 01 Sep 2011 17:51:31 +0200
From: Harald Alvestrand <harald@alvestrand.no>
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To: Bernard Aboba <bernard_aboba@hotmail.com>
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Subject: Re: [rtcweb] Symmetric RTP and uni-directional media streams
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On 09/01/11 16:35, Bernard Aboba wrote:
> I think Christer's question related to the following text from the W3C 
> WEBRTC editor's draft 
> (http://dev.w3.org/2011/webrtc/editor/webrtc.html) Section 4:
>
> All streams represented by |MediaStream 
> <http://dev.w3.org/2011/webrtc/editor/webrtc.html#mediastream>| 
> objects must be marked as "sendonly" by the peer that initially adds 
> the stream to the session. The |PeerConnection 
> <http://dev.w3.org/2011/webrtc/editor/webrtc.html#peerconnection>| API 
> does not support bidirectional ("sendrecv") audio or video media 
> streams. [SDPOFFERANSWER] 
> <http://dev.w3.org/2011/webrtc/editor/webrtc.html#refsSDPOFFERANSWER>
Yes, as Christer knows, I think that's a broken design, have argued 
against it, and we're not implementing to it.
It's a bit strange of me of all people to flash the interoperability 
card, but this is not interoperable with other RTP usages either.

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