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Re: Timed tracks

From: Robert O'Callahan <robert@ocallahan.org>
Date: Fri, 23 Apr 2010 16:48:51 +1200
Message-ID: <n2l11e306601004222148s662e7efdpc7549e815a5b7e89@mail.gmail.com>
To: John Foliot <jfoliot@stanford.edu>
Cc: Sean Hayes <Sean.Hayes@microsoft.com>, Philippe Le Hegaret <plh@w3.org>, Ian Hickson <ian@hixie.ch>, public-html@w3.org
On Fri, Apr 23, 2010 at 4:25 PM, John Foliot <jfoliot@stanford.edu> wrote:

> Robert O'Callahan wrote:
> > Burning captions into the video stream is the most
> > effective way to achieve that goal, and even that
> > isn't foolproof.
>
> Robert, when you say "burned in" are you referring to time-stamp text files
> included in the media wrapper, of converted to a binary format (.scc) and
> merged with the video asset as pixel data?  If it is the later, it makes it
> impossible to repurpose that text to AT like screen readers and Braille
> refresh bars.
>

Yes, the latter. I agree it's not desirable. However, it's the best way to
achieve Sean's goal of not allowing an HTML page author to "undermine" the
captions. Personally I think that shouldn't be a goal...

Rob
-- 
"He was pierced for our transgressions, he was crushed for our iniquities;
the punishment that brought us peace was upon him, and by his wounds we are
healed. We all, like sheep, have gone astray, each of us has turned to his
own way; and the LORD has laid on him the iniquity of us all." [Isaiah
53:5-6]
Received on Friday, 23 April 2010 04:49:24 GMT

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