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Re: [MMUSIC] T140: Usage of "-"fmt value in dcsa encapsulated fmtp attribute

Paul Kyzivat <pkyzivat@alum.mit.edu> Mon, 16 December 2019 15:57 UTC

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From: Paul Kyzivat <pkyzivat@alum.mit.edu>
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Date: Mon, 16 Dec 2019 10:57:35 -0500
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Archived-At: <https://mailarchive.ietf.org/arch/msg/mmusic/vspXf76nd_K7-ar9ZdeWqhMwIfE>
Subject: Re: [MMUSIC] T140: Usage of "-"fmt value in dcsa encapsulated fmtp attribute
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On 12/16/19 10:34 AM, Flemming Andreasen wrote:

>> Also, I think we should aim at being aligned with the RTP usage when it comes to SDP attributes.
> Agreed again. I think the "fmtp" attribute is the right one to use here 
> - the question is simply what format value we use. I'm leaning towards 
> "t140", but we should get some general text in sdpneg to account for 
> additional media formats in the future.

IIUC you are proposing that the format value in fmtp attributes for data 
subchannels should be the subchannel identifier. Is that right?

While that is redundant I won't oppose that.

	Thanks,
	Paul

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