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Bug 13184 - Allow nested chapters by having nested (time range-wise) cues
Summary: Allow nested chapters by having nested (time range-wise) cues
Status: RESOLVED DUPLICATE of bug 12662
Alias: None
Product: HTML WG
Classification: Unclassified
Component: LC1 HTML5 spec (show other bugs)
Version: unspecified
Hardware: Other other
: P3 normal
Target Milestone: ---
Assignee: Ian 'Hixie' Hickson
QA Contact: HTML WG Bugzilla archive list
URL: http://www.whatwg.org/specs/web-apps/...
Whiteboard:
Keywords: a11y, a11ytf, media
Depends on:
Blocks:
 
Reported: 2011-07-08 12:23 UTC by contributor
Modified: 2011-08-11 22:34 UTC (History)
8 users (show)

See Also:


Attachments

Description contributor 2011-07-08 12:23:57 UTC
Specification: http://www.whatwg.org/specs/web-apps/current-work/multipage/the-video-element.html
Multipage: http://www.whatwg.org/C#text-track-model
Complete: http://www.whatwg.org/c#text-track-model

Comment:
Allow nested chapters by having nested (time range-wise) cues

Posted from: 83.218.67.122 by philipj@opera.com
User agent: Opera/9.80 (X11; Linux x86_64; U; Edition Next; en) Presto/2.9.168 Version/11.50
Comment 1 Philip Jägenstedt 2011-07-08 12:28:45 UTC
http://lists.w3.org/Archives/Public/public-html/2011Jul/0150.html

While nested chapters are not overly common, we can easily support the use case simply by considering cues which are contained (time range-wise, not syntactically) within another to create a child chapter, as such:

WEBVTT
 
00:00:00.000 --> 00:00:10.700
Title Slide
 
00:00:10.700 --> 00:00:47.600
Introduction by Naomi Black
 
00:00:47.600 --> 00:07:37.900
Talk on WebVTT
 
00:00:47.600 --> 00:01:50.100
Impact of Captions on the Web
 
00:01:50.100 --> 00:03:33.000
Requirements of a Video text format
 
00:03:33.000 --> 00:04:57.766
Simple WebVTT file
 
00:04:57.766 --> 00:06:16.666
Styled WebVTT file
 
00:06:16.666 --> 00:07:37.900
Internationalized WebVTT file

The hierarchy here is:

1. Title Slide
2. Introduction by Naomi Black
3. Talk on WebVTT
3.1. Impact of Captions on the Web
3.2. Requirements of a Video text format
3.3. Simple WebVTT file
3.4. Styled WebVTT file
3.5. Internationalized WebVTT file

What's needed in the spec is to specify a simple algorithm for constructing the tree and say that they may expose in UI and to AT this tree. One algorithm was suggested in <http://lists.w3.org/Archives/Public/public-html/2011Jul/0119.html>, but anything will do.
Comment 2 Silvia Pfeiffer 2011-07-09 05:59:52 UTC
Related to bug 12662
Comment 3 Michael[tm] Smith 2011-08-04 05:17:33 UTC
mass-move component to LC1
Comment 4 Ian 'Hixie' Hickson 2011-08-11 22:34:29 UTC

*** This bug has been marked as a duplicate of bug 12662 ***