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[imsc] APA comment: Improve introduction

From: Nigel Megitt via GitHub <sysbot+gh@w3.org>
Date: Tue, 30 Jan 2018 15:24:28 +0000
To: public-tt@w3.org
Message-ID: <issues.opened-292823249-1517325867-sysbot+gh@w3.org>
nigelmegitt has just created a new issue for https://github.com/w3c/imsc:

== APA comment: Improve introduction ==
>From https://lists.w3.org/Archives/Public/public-tt/2018Jan/0270.html

While we appreciate that TTML Profiles for Internet Media Subtitles and Captions 1.1 <https://www.w3.org/TR/ttml-imsc1.1/>  is depending on Timed Text Markup Language 2 (TTML2) <https://www.w3.org/TR/ttml2/> , it should still include an introduction that guides the reader to a better understanding of its content.  Such an introduction could respond to the following questions:

a.	Why are profiles needed for text-only and image-only captions/subtitles?
b.	What are typical use cases for a image-only captions/subtitles?
c.	What is the purpose of a presentation processor, and a transformation processor?

Please view or discuss this issue at https://github.com/w3c/imsc/issues/315 using your GitHub account
Received on Tuesday, 30 January 2018 15:25:00 UTC

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