Return-Path: X-Original-To: avt@ietfa.amsl.com Delivered-To: avt@ietfa.amsl.com Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 60980120125; Thu, 26 Sep 2019 02:13:15 -0700 (PDT) X-Virus-Scanned: amavisd-new at amsl.com X-Spam-Flag: NO X-Spam-Score: -4.199 X-Spam-Level: X-Spam-Status: No, score=-4.199 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no 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 8AVBFYSJkSam; Thu, 26 Sep 2019 02:13:13 -0700 (PDT) Received: from mailout0.cwwtf.bbc.co.uk (mailout0.cwwtf.bbc.co.uk [132.185.160.179]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 6E81712084D; Thu, 26 Sep 2019 02:13:13 -0700 (PDT) Received: from BGB01XI1012.national.core.bbc.co.uk (bgb01xi1012.national.core.bbc.co.uk [10.161.14.16]) by mailout0.cwwtf.bbc.co.uk (8.15.2/8.15.2) with ESMTP id x8Q9DBN5018861; Thu, 26 Sep 2019 10:13:11 +0100 (BST) Received: from BGB01XI1015.national.core.bbc.co.uk (10.161.14.78) by BGB01XI1012.national.core.bbc.co.uk (10.161.14.16) with Microsoft SMTP Server (TLS) id 14.3.408.0; Thu, 26 Sep 2019 10:13:10 +0100 Received: from BGB01XUD1012.national.core.bbc.co.uk ([10.161.14.10]) by BGB01XI1015.national.core.bbc.co.uk ([10.161.14.78]) with mapi id 14.03.0408.000; Thu, 26 Sep 2019 10:13:10 +0100 From: James Sandford To: Barry Leiba , "draft-ietf-payload-rtp-ttml.all@ietf.org" CC: "avt@ietf.org" Thread-Topic: AD review of draft-ietf-payload-rtp-ttml-02 Thread-Index: AQHVdBgUFTh21K1Yg0mt896Qe9aVlKc9rK5G Date: Thu, 26 Sep 2019 09:13:10 +0000 Message-ID: <734752AF0E88364D983373FE5CEFED5770DD04F3@bgb01xud1012> References: In-Reply-To: Accept-Language: en-GB, en-US Content-Language: en-GB X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [132.185.132.12] X-TM-AS-Product-Ver: SMEX-12.5.0.1300-8.2.1013-24054.007 X-TM-AS-Result: No-6.563900-8.000000-10 X-TMASE-MatchedRID: X4bcv0S75Knr/497FfFvZhes/RxhysDbZa7LkubQvj8dMKZmwJi4SOZk tt2TiF8suiIcdMkoZb8DZCldP9AFvrQ/gWi/bNdVyPPRU9ScEDVr9+Kgn2XgeNrbWin3863fZGa XPLvxUHRe9N8X0ShXYNGLiYIi41QmuN0AXBH/oPF6pWmpFd8o3snlJe2gk8vIF+7/NKS75QcIZJ R7eWK/XEdPkJ3+RHyBbOQvzWn9Cmhu91Qj4cgn45YsKSXWWrsH6r3HCixfuKcc4ri4RJV/1RyUZ LFni6AmdvgGbsWpCcs+cjURnQbybFN5kIZnYeEYDB+ErBr0bAMl3afZehJEWaMLUT/MIQivd9Oj 2OGJopnXx+5C83iNtxJd38M4xt+YhFhuH8Sj5cVzmKcWXKl6qn0tCKdnhB58eVl+oyOKCVf3PDi XO/tFSQDaKM/bqKGRiHf2+2o/IMtM3Xusaj14R/rGHVIhNhU+1t51g1X0xSMAjm77aK0G0uL5gS gm6vEwwSASbfJcuD7euXsNnlUTNEFhOUSORqH4 X-TM-AS-User-Approved-Sender: Yes X-TM-AS-User-Blocked-Sender: No X-TMASE-Result: 10--6.563900-8.000000 X-TMASE-Version: SMEX-12.5.0.1300-8.2.1013-24054.007 Content-Type: multipart/alternative; boundary="_000_734752AF0E88364D983373FE5CEFED5770DD04F3bgb01xud1012_" MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: c91d45b2-6e10-4209-9543-d9970fac71b7 Archived-At: Subject: Re: [AVTCORE] AD review of draft-ietf-payload-rtp-ttml-02 X-BeenThere: avt@ietf.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Audio/Video Transport Core Maintenance List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 26 Sep 2019 09:13:15 -0000 --_000_734752AF0E88364D983373FE5CEFED5770DD04F3bgb01xud1012_ Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Noted. I'll make the changes you've suggested once last call is over. Thank= you for your review. Regards, James =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D James Sandford R&D Project Engineer BBC Research and Development 5th Floor Dock House MediaCityUK Salford M50 2LH Tel: 030304 (09549) Web: http://www.bbc.co.uk/rd ________________________________ From: Barry Leiba [barryleiba@computer.org] Sent: 26 September 2019 04:11 To: draft-ietf-payload-rtp-ttml.all@ietf.org Cc: avt@ietf.org Subject: AD review of draft-ietf-payload-rtp-ttml-02 Nicely written, and I have little to say. My comments are minor, and can b= e handled along with any other last-call comments; I will request last call= as soon as I=92ve sent this note. =97 Section 4.1 =97 Note that the length of data words will depend on the character encoding used (e.g. 8 bit words for UTF-8, 16 bit words for UTF-16). A reader could be confused by =93length of data words=94 here. I suggest t= his: NEW Note that the length of each data word depends on the character encoding used: for UTF-8 a word is 8 bits, while it is 16 bits for UTF-16. =97 Section 4.2 =97 Documents carried in User Data Words are encoded in accordance with one of the defined TTML profiles specified in its registry [TTML-MTPR]. The antecedent to =93its=94 isn=92t clear; I suggest =93in the TTML registr= y=94. (You might, then, even make it, =93one of the defined profiles in th= e TTML registry [TTML-MTPR].=94) Barry --_000_734752AF0E88364D983373FE5CEFED5770DD04F3bgb01xud1012_ Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
Noted. I'll make the changes you've suggested once last call is over= . Thank you for your review.

Regards,
James

        &n= bsp;      
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
James Sandford
R&D Project Engineer

BBC Research and Development
5th Floor
Dock House
MediaCityUK
Salford
M50 2LH

Tel: 030304 (09549)
Web: http://www.bbc.co.uk/rd
From: Barry Leiba [barryleiba@computer.or= g]
Sent: 26 September 2019 04:11
To: draft-ietf-payload-rtp-ttml.all@ietf.org
Cc: avt@ietf.org
Subject: AD review of draft-ietf-payload-rtp-ttml-02

Nicely written, and I have little to say.&nb= sp; My comments are minor, and can be handled along with any other last-cal= l comments; I will request last call as soon as I=92ve sent this note.


=97 Section 4.1 =97


      Note that the length of= data

      words will depend on th= e character encoding used (e.g. 8 bit words

      for UTF-8, 16 bit words= for UTF-16).


A reader could be confused by =93length of d= ata words=94 here.  I suggest this:


NEW

      Note that the length of= each data

      word depends on the cha= racter encoding used: for UTF-8 a word

      is 8 bits, while it is = 16 bits for UTF-16.


=97 Section 4.2 =97


   Documents carried in User Data = Words are encoded in accordance with

   one of the defined TTML profile= s specified in its registry

   [TTML-MTPR].


The antecedent to =93its=94 isn=92t clear; I= suggest =93in the TTML registry=94.  (You might, then, even make it, = =93one of the defined profiles in the TTML registry [TTML-MTPR].=94)=


Barry


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