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Re: [media] Moving forward with captions / subtitles

From: Philip Jägenstedt <philipj@opera.com>
Date: Tue, 16 Feb 2010 15:37:15 +0800
To: "Geoff Freed" <geoff_freed@wgbh.org>, "Silvia Pfeiffer" <silviapfeiffer1@gmail.com>
Cc: "Eric Carlson" <eric.carlson@apple.com>, "HTML Accessibility Task Force" <public-html-a11y@w3.org>
Message-ID: <op.u77l4dqhatwj1d@philip-pc>
On Tue, 16 Feb 2010 04:36:09 +0800, Geoff Freed <geoff_freed@wgbh.org>  
wrote:

> GF:  I prefer <trackgroup><track> as well--  grouping tracks by role  
> makes the most sense to me. But I'm still confused about one thing after  
> reading today's thread.  From this markup, it looks to me like  
> <trackgroup><track> also would permit multiple tracks of the same role  
> to appear simultaneously.  True?  Playing simultaneous tracks of the  
> same role is still what I'd prefer (in addition to playing simultaneous  
> tracks of differing roles, of course).

My idea is that <trackgroup> be used to group mutually exclusive tracks,  
independently of their roles. I struggle to come up with an example when  
you would want it, but if you wrap each <track> in its own <trackgroup>  
then *all* tracks can be enabled simultaneously. It is of course up to the  
author to make groups that make sense. Power users could override this  
using user JavaScript or other browser extensions if they really want to.

-- 
Philip Jägenstedt
Core Developer
Opera Software
Received on Tuesday, 16 February 2010 07:37:59 GMT

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