IETF Logo Mail Archive

Re: [MMUSIC] Simulcast worries: Fallback in the a=rid language

Martin Thomson <martin.thomson@gmail.com> Wed, 21 October 2015 18:36 UTC

Return-Path: <martin.thomson@gmail.com>
X-Original-To: mmusic@ietfa.amsl.com
Delivered-To: mmusic@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 3F5DE1A8A6D for <mmusic@ietfa.amsl.com>; Wed, 21 Oct 2015 11:36:07 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2
X-Spam-Level:
X-Spam-Status: No, score=-2 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, SPF_PASS=-0.001] autolearn=ham
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id R1dv9zP2wigu for <mmusic@ietfa.amsl.com>; Wed, 21 Oct 2015 11:36:05 -0700 (PDT)
Received: from mail-yk0-x235.google.com (mail-yk0-x235.google.com [IPv6:2607:f8b0:4002:c07::235]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 4CBD81A0105 for <mmusic@ietf.org>; Wed, 21 Oct 2015 11:35:19 -0700 (PDT)
Received: by ykaz22 with SMTP id z22so58950871yka.2 for <mmusic@ietf.org>; Wed, 21 Oct 2015 11:35:18 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; bh=VzNLZBA1N4FslWgMw9f+oxAbJ5Z+EcgywiVTknfN63I=; b=XEbD8ZmrYqhIkR6ng+k+Ag3vHM18tZgw9VhRzfeQqVNA5FDowqmkGzrV/vTEzwuaJe 6qF2AX522+WK5b+5or29QLwwYMi5EA6paVoOQWiwUARc62rDTDQvu/oyOvUpl5I9LGBj pirB2w48BdbFCz/cgENBgPuqFq7AWvmtOa74v5g28Cgaf54FoEabzrh3tj/VS3/d6tWH mASBb+gbWjBxK7bnxfq7PhNez+3l9pbrC2UkM1SQBFPCN+dac+gBZHTa3zBAFHP3JkwP ZXIiVd8lygQxuogKV8H/Q++L9bMm5ch5ZHj7WZOEjPT0xCPUd+Jk8qMvIWrjeS1tuTXu +KBQ==
MIME-Version: 1.0
X-Received: by 10.129.80.5 with SMTP id e5mr7685857ywb.105.1445452518623; Wed, 21 Oct 2015 11:35:18 -0700 (PDT)
Received: by 10.129.132.145 with HTTP; Wed, 21 Oct 2015 11:35:18 -0700 (PDT)
In-Reply-To: <562799B8.9080609@alvestrand.no>
References: <562799B8.9080609@alvestrand.no>
Date: Wed, 21 Oct 2015 11:35:18 -0700
Message-ID: <CABkgnnXsd0kr0T43Eu2CeC9Rg9Z9w-QBKw2L7aMub_oVyJWL3g@mail.gmail.com>
From: Martin Thomson <martin.thomson@gmail.com>
To: Harald Alvestrand <harald@alvestrand.no>
Content-Type: text/plain; charset="UTF-8"
Archived-At: <http://mailarchive.ietf.org/arch/msg/mmusic/sFmrWuLGXhcyU2p0x01T1-fHUNg>
Cc: "mmusic@ietf.org" <mmusic@ietf.org>
Subject: Re: [MMUSIC] Simulcast worries: Fallback in the a=rid language
X-BeenThere: mmusic@ietf.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: Multiparty Multimedia Session Control Working Group <mmusic.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/mmusic>, <mailto:mmusic-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/mmusic/>
List-Post: <mailto:mmusic@ietf.org>
List-Help: <mailto:mmusic-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/mmusic>, <mailto:mmusic-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 21 Oct 2015 18:36:07 -0000

On 21 October 2015 at 06:57, Harald Alvestrand <harald@alvestrand.no> wrote:
> 1 - Toss all RIDs that it cannot parse fully

This.

If you were able to handle options that didn't limit goats, then you
can add an alternative profile that doesn't include any max-goats
constraints:

a=rid:1 recv max-goats=47;max-fr=50
a=rid:2 recv max-goats=22;max-fr=20
a=rid:3 send max-goats=44;max-fr=20
a=rid:4 send max-goats=22;max-fr=10
a=rid:5 recv max-fr=10
a=rid:6 recv max-fr=5
a=rid:7 send max-fr=10
a=rid:8 send max-fr=5
a=simulcast: send rid=3;4,7;8 recv rid=1;2,5;6

(I've probably gotten the syntax off here, but I hope that this is clear enough.

v2.23.0 | Report a Bug | By Email