RE: [XCON] I-D ACTION:draft-ietf-xcon-conference-scenarios-00.txt

["Eric Burger" <eburger@snowshore.com>]

That means the protocol has to have "I can't do that" or negotiation messages.

> -----Original Message-----
> From: Even, Roni [mailto:roni.even@polycom.co.il]
> Sent: Tuesday, January 20, 2004 11:28 AM
> To: Eric Burger; Even, Roni; xcon@ietf.org
> Subject: RE: [XCON] I-D
> ACTION:draft-ietf-xcon-conference-scenarios-00.txt
> 
> 
> Eric,
> The bridge needs to support only the layouts it can. As for 
> mixing it is
> always by assigning a stream to a sub-window explicitly or implicitly
> Roni Even
> 
> 
> 
> -----Original Message-----
> From: Eric Burger [mailto:eburger@snowshore.com]
> Sent: Tuesday, January 20, 2004 6:01 PM
> To: Even, Roni; xcon@ietf.org
> Subject: RE: [XCON] I-D 
> ACTION:draft-ietf-xcon-conference-scenarios-00.txt
> 
> 
> Does this mean that the bridge needs to be able to support 
> every layout
> *and* every mixing algorithm, on a stream-by-stream basis?
> 
> > -----Original Message-----
> > From: Even, Roni [mailto:roni.even@polycom.co.il]
> > Sent: Tuesday, December 23, 2003 1:35 AM
> > To: 'Umesh.Chandra@nokia.com'; Even, Roni; xcon@ietf.org
> > Subject: RE: [XCON] I-D
> > ACTION:draft-ietf-xcon-conference-scenarios-00.txt
> > 
> > 
> > Hi,
> > The participant will need to select first the layout ( 3 sub 
> > windows in your
> > example) and then select who will be seen in the windows by 
> > defining the
> > mix. The media policy control protocol should allow this.
> > Roni Even
> > 
> > *************************************
> > Roni Even
> > VP Product Planning
> > Polycom Israel
> > 
> > Tel: +972-3-9251200
> > Cell: +972-55-481099
> > email:roni.even@polycom.co.il
> > *******************************************
> > 
> > 
> > -----Original Message-----
> > From: Umesh.Chandra@nokia.com [mailto:Umesh.Chandra@nokia.com]
> > Sent: Tuesday, December 23, 2003 1:40 AM
> > To: roni.even@polycom.co.il; xcon@ietf.org
> > Subject: RE: [XCON] I-D 
> > ACTION:draft-ietf-xcon-conference-scenarios-00.txt
> > 
> > 
> > 
> > Hello Roni,
> > 
> > Thanks for your input..So basically the user can decide the 
> > contents of the
> > screen layout, but the screen layout can be static or can be changed
> > dynamically based on user selection. In nutshell can the end 
> > user  say i
> > want to see user  A, B, C in mosaic ( assuming the 
> conferencing server
> > supports this kind of layout) to the conferencing server?. 
> > Each user can
> > send its own request for content and for layout. In that case 
> > the mixer has
> > to support the functionality to select the desired layout and 
> > select the
> > particular streams the end user is asking for.
> > 
> > And in case the conferencing server doesnt support this kind 
> > of layout, what
> > is the protocol to inform the client..I dont know if this 
> > would fall under
> > media control policy.. 
> > 
> > 
> > BR 
> > Umesh
> > -----Original Message-----
> > From: ext Even, Roni [mailto:roni.even@polycom.co.il]
> > Sent: Monday, December 22, 2003 1:19 AM
> > To: Chandra Umesh (NRC/Dallas); xcon@ietf.org
> > Subject: RE: [XCON] I-D
> > ACTION:draft-ietf-xcon-conference-scenarios-00.txt
> > 
> > 
> > Umesh,
> > The video mixing scenarios describe typical video 
> > conferencing scenarios. An
> > participants with the right privilege level may select the 
> > screen layout he
> > wants to have. The selection may be for his own view or for 
> the whole
> > conference view. The availability of such functionality per 
> > participant or
> > per conference is dependent on the mixer functionality. This 
> > functionality
> > is not saying what is the content (whose video is mixed) but 
> > on the layout.
> > Layout may be static during the conference or may be changed 
> > dynamically
> > based on user selection (e.g. start with a single view and 
> > request a quad
> > view later) or the layout can change automatically based on 
> > the number of
> > participants in the conference.
> > The selection of the layout is independent from the 
> selection of which
> > stream is seen in each sub-window
> > 
> > Roni Even
> >  
> > 
> > *************************************
> > Roni Even
> > 
> > Polycom Israel
> > 
> > Tel: +972-3-9251200
> > Cell: +972-55-481099
> > email:roni.even@polycom.co.il
> > *******************************************
> > 
> > 
> > -----Original Message-----
> > From: Umesh.Chandra@nokia.com [mailto:Umesh.Chandra@nokia.com]
> > Sent: Thursday, December 18, 2003 11:06 PM
> > To: xcon@ietf.org
> > Subject: RE: [XCON] I-D 
> > ACTION:draft-ietf-xcon-conference-scenarios-00.txt
> > 
> > 
> > Hello,
> > 
> > In section 4.1 of the draft ( Video mixing scenarios ), it 
> > says " For video
> > the user selects one of a set of pre-defined video 
> > presentations offered by
> > the server". Does it mean that end user in the conference 
> > knows what all
> > streams the server can offer? Does this pre-defined video 
> list changes
> > dynamically ?...For example Particpant A is getting video of 
> > particpant B,
> > but decides to watch a mosaic of participant B and C, it 
> > should be able to
> > do so...The server should be able to mix the streams of B and 
> > C and send one
> > stream to A...
> > 
> > Umesh
> > -----Original Message-----
> > From: xcon-admin@ietf.org [mailto:xcon-admin@ietf.org]On 
> Behalf Of ext
> > Internet-Drafts@ietf.org
> > Sent: Thursday, December 18, 2003 2:29 PM
> > Cc: xcon@ietf.org
> > Subject: [XCON] I-D 
> ACTION:draft-ietf-xcon-conference-scenarios-00.txt
> > 
> > 
> > A New Internet-Draft is available from the on-line Internet-Drafts
> > directories.
> > This draft is a work item of the Centralized Conferencing 
> > Working Group of
> > the IETF.
> > 
> > 	Title		: Conferencing Scenarios
> > 	Author(s)	: R. Even
> > 	Filename	: draft-ietf-xcon-conference-scenarios-00.txt
> > 	Pages		: 15
> > 	Date		: 2003-12-18
> > 	
> > This document describes SIP conferencing scenarios.  It 
> will describe
> >    basic and advance conferencing scenarios.  These conferencing
> >    scenarios will help with definition and evaluation of the
> >    requirements for SIP conferencing framework and the protocol
> >    associated with the framework.
> > 
> > A URL for this Internet-Draft is:
> > http://www.ietf.org/internet-drafts/draft-ietf-xcon-conference
> -scenarios-00.
> txt
> 
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