Re: [MMUSIC] Simulcast worries: What bitrate? (from the WEBRTC list)

[Magnus Westerlund <[e-mail]>]

Den 2015-10-22 kl. 16:56, skrev Adam Roach:
> On 10/21/15 08:42, Harald Alvestrand wrote:
>> I'd be happier if we could say "this is the same bitrate as b=TEAS" or
>> something like that - if an implementation has to stick to multiple
>> definitions of bitrate for the same media flow, which will happen with
>> a=rid .. max-br and b= in the same message, it would be nice to be able
>> to use the same counters.
>
> I'm good either way. We can keep this as-is, or add a reference to
> RFC3890. Anyone want to speak for or against moving over to the RFC3890
> definition of bandwidth?

Hi,

I am of the opinion (having authored RFC 3890) that we should use a more 
well defined bit-rate definition than what is in TIAS.
In fact the current definition is well matching that of TIAS, with the 
additional constraints of a measuring interval. I think this is the 
minimal improvement we should do.

I can argue for an even more specific bandwidth definitions. My personal 
position is that the stream specific ones (SMT and SLT) in our SDP 
bandwidth proposal (now expired) actually makes sense to be used with RID:
https://www.ietf.org/archive/id/draft-westerlund-mmusic-sdp-bw-attribute-02.txt

Cheers

Magnus Westerlund

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