Return-Path: X-Original-To: mmusic@ietfa.amsl.com Delivered-To: mmusic@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id AAE2E1297D6 for ; Fri, 24 Mar 2017 10:28:44 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -2.001 X-Spam-Level: X-Spam-Status: No, score=-2.001 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RP_MATCHES_RCVD=-0.001, SPF_PASS=-0.001] autolearn=unavailable autolearn_force=no Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=google.com 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 NB02clc206yb for ; Fri, 24 Mar 2017 10:28:43 -0700 (PDT) Received: from mail-qt0-x22d.google.com (mail-qt0-x22d.google.com [IPv6:2607:f8b0:400d:c0d::22d]) (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 C3A1B1294AE for ; Fri, 24 Mar 2017 10:19:01 -0700 (PDT) Received: by mail-qt0-x22d.google.com with SMTP id r45so7677070qte.3 for ; Fri, 24 Mar 2017 10:19:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=mime-version:from:date:message-id:subject:to; bh=cQJ2c28JsCc14xPONtkOPAiTAYnrSGQSuYR33cAbKxI=; b=AADvp89gIFE9JBn4d5vanC60C9nyNOkjg1xam4yXjwdLvy54aISbagfS3OajtdfCZr 7IV4fK4Wigob0Ft1U7vzZJHDEUMOMID2fbLMTibDxd7d6S2ct3ubvSZW31Tn1vgQVxbN O63LUd+rSzaBh+Dag5EAu19VnUvgh5mimOKDYcc3JYpkg1/Cjw4wyJK1FKGZt8PC+tkt MRlO3l8fQP0/vJTxM5HHsNrKmRSkW9C0QEhw/UaSyMHsIbWJqYusDiRiKyrl434rZm1r a/dog95HVCpbWmJhjiPh1T8b4I7vGxp8gKszu+ckyLxwlQoIdufVnqaJauILMR+G9ITh IA3A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=cQJ2c28JsCc14xPONtkOPAiTAYnrSGQSuYR33cAbKxI=; b=MUi+ZzxEavoaibPiyxF/K3rzVD28ZiqTWJEb6RCa3y0Umz/4xp3oF59BI+KoGH9pId yX7RElc7TOQlhhe4WrowxZgiKb2Gp87B+0iXVthRqrjUA/VxfoONCNC7SSxHtfpx8joX qChdI/g9BlX7/6xk3Ach+eeTDZ/WuP1i82VEU6v3Sq3ukz/9v9wZSUARtmCtPdRZiWR8 On7TwwAUxZzGdiNJh6PWAkrM8D+lggvFb8UmRn9aFGfXOaty7SeILn0KqIJj3aBF0bUb kZsEhwroYmiDQnHbR8zwQlMM1KRaAjOaaXBCbSeWuuvPW9L9egxmWZ2zJl5dVKaYCgvF 3Ovg== X-Gm-Message-State: AFeK/H2X+4lDozc0v56Fjvs4uoA1NwljUNTugTC4pmf47Jp8jxeU2UAFMfdPkzvXN1kzqf8ZCf55/oaBfQPWtu2t X-Received: by 10.200.50.112 with SMTP id y45mr8659301qta.75.1490375940694; Fri, 24 Mar 2017 10:19:00 -0700 (PDT) MIME-Version: 1.0 Received: by 10.12.154.209 with HTTP; Fri, 24 Mar 2017 10:19:00 -0700 (PDT) From: Taylor Brandstetter Date: Fri, 24 Mar 2017 10:19:00 -0700 Message-ID: To: mmusic WG Content-Type: multipart/alternative; boundary=001a11403d68873660054b7d309d Archived-At: Subject: [MMUSIC] "a=extmap" with BUNDLE X-BeenThere: mmusic@ietf.org X-Mailman-Version: 2.1.22 Precedence: list List-Id: Multiparty Multimedia Session Control Working Group List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 24 Mar 2017 17:28:45 -0000 --001a11403d68873660054b7d309d Content-Type: text/plain; charset=UTF-8 Is there any document that defines the general semantics of "a=extmap" when "m=" sections are bundled? I assumed there was a restriction that multiple bundled "m=" sections must not use the same ID to refer to different header extensions, but I haven't found this anywhere. If it's needed, should it go in sdp-mux-attributes, with something similar to "IDENTICAL-PER-PT"? --001a11403d68873660054b7d309d Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Is there any document that defines the general semantics o= f "a=3Dextmap" when "m=3D" sections are bundled? I assu= med there was a restriction that multiple bundled "m=3D" sections= must not use the same ID to refer to different header extensions, but I ha= ven't found this anywhere.

If it's needed, shoul= d it go in sdp-mux-attributes, with something similar to "IDENTICAL-PE= R-PT"?
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