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Re: [rtcweb] BUNDLE: Disallowing moving an m- section between BUNDLE groups within a single SDP offer

Nils Ohlmeier <nohlmeier@mozilla.com> Sat, 18 November 2017 20:18 UTC

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From: Nils Ohlmeier <nohlmeier@mozilla.com>
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Date: Sat, 18 Nov 2017 12:18:35 -0800
In-Reply-To: <7594FB04B1934943A5C02806D1A2204B6BFFAEE9@ESESSMB109.ericsson.se>
Cc: mmusic <mmusic@ietf.org>, RTCWeb IETF <rtcweb@ietf.org>
To: Christer Holmberg <christer.holmberg@ericsson.com>
References: <7594FB04B1934943A5C02806D1A2204B6BFF74CC@ESESSMB109.ericsson.se> <7594FB04B1934943A5C02806D1A2204B6BFFAEE9@ESESSMB109.ericsson.se>
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Subject: Re: [rtcweb] BUNDLE: Disallowing moving an m- section between BUNDLE groups within a single SDP offer
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I’m in favor of your proposed change, because the use case is small, there is a work around, and the code for handling this (hopefully rare) use case is really complex.

Best regards
  Nils Ohlmeier

> On Nov 18, 2017, at 09:16, Christer Holmberg <christer.holmberg@ericsson.com> wrote:
> 
> The change below would look something like this:
> 
> https://github.com/cdh4u/draft-sdp-bundle/pull/44 <https://github.com/cdh4u/draft-sdp-bundle/pull/44>
> 
> (Also contains a few spelling fixes)
> 
> Regards,
> 
> Christer
>   <>
> From: mmusic [mailto:mmusic-bounces@ietf.org] On Behalf Of Christer Holmberg
> Sent: 18 November 2017 07:40
> To: mmusic <mmusic@ietf.org>
> Cc: RTCWeb IETF <rtcweb@ietf.org>
> Subject: [MMUSIC] BUNDLE: Disallowing moving an m- section between BUNDLE groups within a single SDP offer
> 
> (CC:ing RTCWEB, but please reply on the MMUSIC list)
> 
> Hi,
> 
> Would anyone object to not allowing moving m- sections between BUNDLE groups within a single O/A transaction? The documentation of that is a little more complicated than I thought, and there is a risk the text becomes more confusing than it already is.
> 
> Note, that one could still send an offer where an m- section is moved out of a BUNDLE group, and then send another offer where the m- line is added to another BUNDLE group (following the normal procedures for adding an m- section to a BUNDLE group). But, one would not be allowed to remove and add within the same offer.
> 
> Regards,
> 
> Christer
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