[imsc] APA comment: Improve introduction

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