Re: [maitai] Roles of Sender and Receiver

[Peter Musgrave <[e-mail]>]

I think this is actually a different, very interesting issue. This speaks to control DURING the call and the need for that to be dynamic. I completely agree - but as understand the charter it's out of scope...although I think it is inevitable that we will need to look at what exists (BFCP, conference event etc.) and determine if it can be used or start to define something new.

This might be subverted by sending all and letting the receiver take them on and off hold quickly...clunky but avoid protocol work. 

My specific question relates to the initial setup where I have two 3 display, 3 camera systems from different vendors. Who decides which stream goes where? Sender or receiver?

Peter

On 2010-12-02, at 2:47 PM, Mike Hammer (hmmr) wrote:

> Ummmm....
> 
> Part of the issue is that with multiple participants with multiple
> inputs and outputs, you can't send all inputs from all sites to all
> other sites.  You kill the network, so some judicious control of what is
> sent when and to whom is needed.  That means that some inputs
> (microphone or camera) are not transmitted at times.
> 
> So, do we allow legs to be asymmetric or not?
> 
> Interested in your view of the collective impact of these types of
> control decisions.
> 
> Mike
> 
> 
> -----Original Message-----
> From: Peter Musgrave [mailto:[e-mail]] 
> Sent: Thursday, December 02, 2010 2:00 PM
> To: Charles Eckel (eckelcu)
> Cc: Mike Hammer (hmmr); [e-mail]
> Subject: Re: [maitai] Roles of Sender and Receiver
> 
> 
> On 2010-12-02, at 11:10 AM, Charles Eckel (eckelcu) wrote:
> 
>> have 3 cameras, left, center, and right.
>> I can provide these as:
>> - 3 separate streams
>> - 1 active speaker switched stream
>> - 1 stream composed of the three
> 
> Ok, I see what you're after. 
> 
> In the case where the receiver elects to get three separate streams,
> then I have a refinement for my question. 
> 
> Who now decides how the streams from A map on to screens at B?
> 
> A could send streams targeted at specific screens at B (after examining
> B's description of it's screens)
> 
> -or-
> 
> B could send A instructions on where to send each stream (based on
> examining A's description of it's cameras)
> 
> -or-
> 
> We can find use-cases in which both techniques might be required. 
> 
> I am trying to decide how complete the information in a room description
> really needs to be. While I like the idea of a reasonably complete
> physical description (since it is very future proof) - I think it
> imposes a burden on each side which might not be warranted. The other
> extreme (just label cameras left, center, right) seems to obviously
> limited. Where is the middle ground?
> 
> Peter Musgrave