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

From: Silvia Pfeiffer <silviapfeiffer1@gmail.com>
Date: Sat, 3 Apr 2010 15:27:16 +1100
Message-ID: <g2v2c0e02831004022127lc5126ed0h956a3f065348a043@mail.gmail.com>
To: "Michael(tm) Smith" <mike@w3.org>
Cc: public-html-a11y@w3.org

I just received some feedback from Mozilla developers that the File
Formats section at
should have a link to the requirements to explain why TTAF/DFXP
support is required.

Also, it should explain that there is a path to implementation of DFXP
starting with the simplest profile, the transformation profile at
http://www.w3.org/TR/ttaf1-dfxp/#profile-dfxp-transformation, which is
not much different from srt.

How that support is to be provided, i.e. that XSL-FO is not required,
but the style elements are mapped to CSS etc, still needs to be worked
out and we need to make a proposal for this. DFXP/TTML support cannot
be implemented without clarifying this. SRT support can, however, go
forward immediately with an implementation.


On Fri, Apr 2, 2010 at 5:24 AM, Michael(tm) Smith <mike@w3.org> wrote:
> As I mentioned on this week's TF telcon, it seems the discussion
> about the Media Text Associations proposal has reached a point
> where it would be useful to try a call for consensus on the
> proposal, and to give everyone in the TF a chance to respond to
> that CfC, and to have any points of disagreement with it recorded
> and reviewed in the TF.
> So, this is a call for consensus within the HTML a11y task force
> to record a resolution supporting the following Change Proposal:
>  Media Text Associations
>  http://www.w3.org/WAI/PF/HTML/wiki/Media_TextAssociations
> The "Media Text Associations" 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 to extend the HTML5 declarative markup for
>  media elements with markup to reference external associated and
>  time-synchronous text resources. The aim is in particular to
>  reference in a standard way external captions, subtitle, and
>  possibly textual audio descriptions, as well as possibly other
>  time-aligned text such as lyrics, karaoke, or ticker text.
>  Similar markup could potentially be used in future for external
>  synchronised audio and video resources too, but it is too early
>  to experiment with these.
> Please read the entire contents of the current proposal; then, if
> you have specific points of disagreement with the proposal which
> you want to have recorded and considered by the TF, please send
> them by e-mail to this list.
>  --Mike
> --
> Michael(tm) Smith
> http://people.w3.org/mike
Received on Saturday, 3 April 2010 04:28:12 UTC

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