Re: [rtcweb] [MMUSIC] Quick comments on draft-roach-rtcweb-glareless-add-00

[Harald Alvestrand <[e-mail]>]

On 05/14/2013 11:17 AM, Emil Ivov wrote:
>
> On 14.05.13, 11:24, Stefan Håkansson LK wrote:
>> On 2013-05-13 19:58, Bernard Aboba wrote:
>>>
>>> On May 12, 2013, at 10:18, "Stefan Håkansson LK"
>>> <[e-mail]> wrote:
>>>
>>>>> I would hope there will normally not be SDP changes for either of
>>>>> those events.
>>>> I would like to avoid them too, but I'm not sure how.
>>> [BA] It is probably not possible to avoid them in all cases, but we
>>> can define RTCP functionality which along with some set of
>>> functionality (e.g. Simulcast, layered coding) will minimize them.
>>> This is worth doing (and soon).
>> I agree to this!
> RTCP `certainly sounds a lot better than SDP O/A
>
> Emil
>
If something's doable doing app-level signalling, it can be deployed at 
the speed of app updates - but each app has to do it on its own.

If something's doable using RTCP, it can be deployed at the speed of 
browser updates - but you have to convince the browser people to do it 
first.

SDP O/A extensions are in an uncomfortable place between these extremes, 
I think. But it's not obvious to me that one of the three always "sounds 
better" than the other ones.