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Re: [Perc] Drop support for E2E RTP header extensions

Sergio Garcia Murillo <sergio.garcia.murillo@gmail.com> Mon, 24 April 2017 15:46 UTC

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To: Jonathan Lennox <jonathan@vidyo.com>
References: <49c7de34-8bc6-bb7d-4524-0af26089eecb@gmail.com> <1CF6F66C-939F-484D-8C53-46ACB8CA69BE@vidyo.com>
Cc: "perc@ietf.org" <perc@ietf.org>
From: Sergio Garcia Murillo <sergio.garcia.murillo@gmail.com>
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Date: Mon, 24 Apr 2017 17:46:36 +0200
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Subject: Re: [Perc] Drop support for E2E RTP header extensions
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On 24/04/2017 17:38, Jonathan Lennox wrote:
>> On Apr 24, 2017, at 6:36 AM, Sergio Garcia Murillo <sergio.garcia.murillo@gmail.com> wrote:
>>
>> Hi all,
>>
>> I have seen no more activity regarding the E2E RTP header issue.
>>
>> Is there a consensus that they can't be supported and that there is no use case for them? Does anyone have a different view? Should this be discussed and agreed on next virtual interim meeting?
> At previous virtual interims, I believe the consensus was that no one had a current use case for E2E RTP header extensions; however, if we didn’t support them, retrofitting them into the protocol later would be extremely difficult.  Thus, we (reluctantly) decided to support them.
>
> If they turn out to complicate the protocol too much, I suppose this can be revisited.

Hi Jonathan, thanks for the heads up.

Apart of making protocol complex, the way that rtp header extensions are 
supported on double encryption won't work on E2E mode except on the most 
trivial scenarios. So, I expect that either we drop support or find a 
way to fix it.

Best regards

Sergio

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