- From: Silvia Pfeiffer <silviapfeiffer1@gmail.com>
- Date: Thu, 11 Mar 2010 15:10:01 +1100
- To: Philip Jägenstedt <philipj@opera.com>
- Cc: Michael Smith <mike@w3.org>, HTML Accessibility Task Force <public-html-a11y@w3.org>
On Thu, Mar 11, 2010 at 2:56 PM, Philip Jägenstedt <philipj@opera.com> wrote: > 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? I don't think anything is prescribed to UAs in the HTML spec - if at all we can only make recommendations on what override rules a UA uses. No? Silvia.
Received on Thursday, 11 March 2010 04:10:56 UTC