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Re: [AVT] RTP streaming and adaptation to AVC of an SVC temporalscalable bitstream - Packet loss

Colin Perkins <csp@csperkins.org> Sat, 18 August 2007 18:06 UTC

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From: Colin Perkins <csp@csperkins.org>
Subject: Re: [AVT] RTP streaming and adaptation to AVC of an SVC temporalscalable bitstream - Packet loss
Date: Sat, 18 Aug 2007 19:06:31 +0100
To: Ye-Kui.Wang@nokia.com
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On 18 Aug 2007, at 18:36, <Ye-Kui.Wang@nokia.com> wrote:
> In your example the SVCtoAVC adapter is an RTP mixer, which  
> terminates the RTP session between the sender and itself and  
> restarts another RTP session between itself and the receiver.  
> Therefore the RTP sequence number needs to be updated for the base  
> layer packets anyway.

If the SVCtoAVC adapter is a transcoder from an SVC stream to an AVC  
stream, it will be an RTP translator, not an RTP mixer. Neither an  
RTP translator or a RTP mixer terminate the RTP session. RFC 3550 and  
draft-ietf-avt-topologies-06.txt discuss this in more detail.

-- 
Colin Perkins
http://csperkins.org/



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