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Re: Survey ready on Media Text Associations proposal

From: Philip Jägenstedt <philipj@opera.com>
Date: Thu, 11 Mar 2010 11:56:54 +0800
To: "Michael Smith" <mike@w3.org>, "HTML Accessibility Task Force" <public-html-a11y@w3.org>, "Silvia Pfeiffer" <silviapfeiffer1@gmail.com>
Message-ID: <op.u9dw840watwj1d@philip-pc.oslo.opera.com>
On Thu, 11 Mar 2010 07:46:01 +0800, Silvia Pfeiffer  
<silviapfeiffer1@gmail.com> wrote:

> + clarify that an "enabled" attribute in the markup expresses the
> intention of the page author to have this track activated. The UA may
> overrule this intent where it has extra knowledge about user
> preferences, e.g. for selecting a more appropriate alternative out of
> a trackgroup.

> + update the selection algorithm for the trackgroup at
> http://www.w3.org/WAI/PF/HTML/wiki/Media_TextAssociations#Resource_selection_algorithm
> to basically signify:
> For each track in a trackgroup
>  - the UA can decide to set the enabled attribute based on 'lang'
> and/or 'media' attributes on track elements.
>  - If there exists tracks with the enabled attribute:
>       Select the first such track.
>     Else:
>       Do not use any of the tracks

Is the intention that we specify a track selection algorithm with exact  
rules for which track to enable based on settings, or should this be left  
to UAs to override ad-hoc?

Philip Jägenstedt
Core Developer
Opera Software
Received on Thursday, 11 March 2010 03:57:35 UTC

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