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Re: a11y TF CfC on resolution to support "Media Multitrack API" change proposal for HTML issue 9

From: David Bolter <david.bolter@gmail.com>
Date: Mon, 05 Apr 2010 11:22:06 -0400
Message-ID: <4BBA001E.9010201@gmail.com>
To: Silvia Pfeiffer <silviapfeiffer1@gmail.com>
CC: "Michael(tm) Smith" <mike@w3.org>, public-html-a11y@w3.org
Hi Silvia,

I think a callback with access to caption text would ideal.

cheers,
David

On 03/04/10 2:44 AM, Silvia Pfeiffer wrote:
> This is a very good question and it possibly has some relationship to
> a discussion about cue ranges that we still need to have.
>
> I like the idea of realising cue ranges in this way, but I think it
> may be a larger discussion that involves capturing all the
> requirements for cue ranges and discussing all the different
> possibilities of realising them.
>
> Were you interested in getting a callback/handler on the captions to
> also get access to the caption text from JavaScript? Or just to call a
> specific handles at every caption start, e.g. to display related
> slides?
>
> Cheers,
> Silvia.
>
>
> On Thu, Apr 1, 2010 at 11:14 AM, David Bolter<david.bolter@gmail.com>  wrote:
>    
>> This looks good to me. Is having something like a callback/handler (e.g.
>> onCaption) that gets called when each caption is displayed outside the scope
>> of this proposal?
>>
>> cheers,
>> David
>> On 30/03/10 5:55 AM, Michael(tm) Smith wrote:
>>      
>>> This is a call for consensus within the HTML a11y task force to
>>> record a resolution supporting the following Change Proposal:
>>>
>>>    Media Multitrack API
>>>    http://www.w3.org/WAI/PF/HTML/wiki/Media_MultitrackAPI
>>>
>>> The "Media Multitrack API" change proposal relates to HTML WG issue 9:
>>>
>>>    http://www.w3.org/html/wg/tracker/issues/9
>>>
>>> To quote from the proposal's Summary section:
>>>
>>>    This is a proposal for introduction of a JavaScript API for
>>>    HTML5 media elements that allows Web authors to determine the
>>>    data that is available from a media resource. It exposes the
>>>    tracks that the resource contains, the type of data it is (e.g.
>>>    audio/vorbis, text/srt, video/theora), the role this data plays
>>>    (e.g. audio description, caption, sign language), and the actual
>>>    language it is in (RFC3066 language code). It also enables
>>>    control over the activation state of the track.
>>>
>>> If you have comments about the resolution to support this
>>> proposal, please send them by e-mail to this list prior to this
>>> Thursday's task-force telcon.
>>>
>>>    --Mike
>>>
>>>
>>>        
Received on Monday, 5 April 2010 15:30:19 GMT

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