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HTML-ISSUE-188 (generic-track-format): Text tracks in HTML should be defined in a way agnostic of the specific caption format [HTML 5 spec]

From: HTML Weekly Issue Tracker <sysbot+tracker@w3.org>
Date: Mon, 05 Dec 2011 03:01:57 +0000
To: public-html-wg-issue-tracking@w3.org
Message-Id: <E1RXOoX-0004dr-G1@tibor.w3.org>

HTML-ISSUE-188 (generic-track-format): Text tracks in HTML should be defined in a way agnostic of the specific caption format [HTML 5 spec]

http://www.w3.org/html/wg/tracker/issues/188

Raised by: Adrian Bateman
On product: HTML 5 spec

Raised from https://www.w3.org/Bugs/Public/show_bug.cgi?id=13637

Frank Olivier wrote:
> http://www.w3.org/TR/html5/rendering.html#webvtt-cue-text-rendering-rules
> 
> The spec contains several (normative) references to webvtt when
> defining cue and track handling. These sections should be rewritten
> to be generic; webvtt is one of many caption formats that could be
> used in html5.

The timed text track feature provides useful capabilities in HTML that do not need to be bound to one specific format. For example, IE10 PP4 implements a subset of both the W3C Recommendation TTML and the experimental community group driven format WebVTT. Both are equally appropriate formats and IE10 PP4 would be interoperable with a user agent implementing a similar profile of TTML.

WebVTT could also feasibly be used as a timed text format independently from HTML5. There is therefore no reason to tie the two formats together with a mutual dependency.
Received on Monday, 5 December 2011 03:02:01 UTC

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