[Sip] VideoFastUpdate in dual video mode

"Oren Libis" <OrenL@radvision.com> Mon, 08 March 2010 14:41 UTC

Return-Path: <OrenL@radvision.com>
X-Original-To: sip@core3.amsl.com
Delivered-To: sip@core3.amsl.com
Received: from localhost (localhost [127.0.0.1]) by core3.amsl.com (Postfix) with ESMTP id 6E2313A6904 for <sip@core3.amsl.com>; Mon, 8 Mar 2010 06:41:25 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.598
X-Spam-Level:
X-Spam-Status: No, score=-2.598 tagged_above=-999 required=5 tests=[BAYES_00=-2.599, HTML_MESSAGE=0.001]
Received: from mail.ietf.org ([64.170.98.32]) by localhost (core3.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id a3RB2HfhYQCe for <sip@core3.amsl.com>; Mon, 8 Mar 2010 06:41:22 -0800 (PST)
Received: from eframer.radvision.com (rvil-eframer.RADVISION.com [80.74.106.104]) by core3.amsl.com (Postfix) with ESMTP id D61C73A68FF for <sip@ietf.org>; Mon, 8 Mar 2010 06:41:19 -0800 (PST)
Received: (from root@localhost) by eframer.radvision.com (8.13.4/8.12.9) id o28EevTg005386 for sip@ietf.org; Mon, 8 Mar 2010 16:40:57 +0200
Received: from rvil-mail1.RADVISION.com (rvil-mail1.radvision.com [172.20.2.100]) by eframer.radvision.com (8.13.4/8.12.9) with ESMTP id o28Eevh8005380 for <sip@ietf.org>; Mon, 8 Mar 2010 16:40:57 +0200
X-MIMEOLE: Produced By Microsoft Exchange V6.5
Content-class: urn:content-classes:message
MIME-Version: 1.0
Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01CABECD.6BAD6079"
Date: Mon, 8 Mar 2010 16:41:43 +0200
Message-ID: <E7D8D1A37669BA428A72828A4DD999AD0223BB5B@rvil-mail1.RADVISION.com>
X-MS-Has-Attach:
X-MS-TNEF-Correlator:
Thread-Topic: VideoFastUpdate in dual video mode
Thread-Index: Acq+zXhXvMipIFiySASYaqUoLvqd9A==
From: "Oren Libis" <OrenL@radvision.com>
To: <sip@ietf.org>
Subject: [Sip] VideoFastUpdate in dual video mode
X-BeenThere: sip@ietf.org
X-Mailman-Version: 2.1.9
Precedence: list
List-Id: Session Initiation Protocol <sip.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/listinfo/sip>, <mailto:sip-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/sip>
List-Post: <mailto:sip@ietf.org>
List-Help: <mailto:sip-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/sip>, <mailto:sip-request@ietf.org?subject=subscribe>
X-List-Received-Date: Mon, 08 Mar 2010 14:41:25 -0000

Hi all,

I would appreciate your help with the following question:
I have a single SIP session of several video streams. Call initiation
(INVITE) contained SDP body with different SDP media descriptors - one
media descriptor for every video stream. (this is common for example
when there is a presentation channel). Please note that each video
stream has different destination port. 
Due to packet loss on one of the streams, I would like to issue
VideoFastUpdate request. However, the VideoFastUpdate is for the entire
session, and I could not find a way to indicate to the remote party
which of the streams requests for an Intra frame.
Please advise.

Thanks,
Oren Libis