W3C home > Mailing lists > Public > public-html@w3.org > March 2012

Re: CP, ISSUE-30: Link longdesc to role of img [Was: hypothetical question on longdesc]

From: <janina@rednote.net>
Date: Wed, 21 Mar 2012 16:59:05 -0400
To: David Singer <singer@apple.com>
Cc: Sean Hayes <Sean.Hayes@microsoft.com>, John Foliot <john@foliot.ca>, "'Silvia Pfeiffer'" <silviapfeiffer1@gmail.com>, ""'xn--mlform-iua@målform.no'"" <xn--mlform-iua@xn--mlform-iua.no>, "rubys@intertwingly.net" <rubys@intertwingly.net>, "laura.lee.carlson@gmail.com" <laura.lee.carlson@gmail.com>, "mjs@apple.com" <mjs@apple.com>, Paul Cotton <Paul.Cotton@microsoft.com>, "public-html-a11y@w3.org" <public-html-a11y@w3.org>, "public-html@w3.org" <public-html@w3.org>
Message-ID: <20120321205905.GE4686@sonata.rednote.net>
David Singer writes:
> Or we simply say the obvious "If the image is not a representative frame of the video, or conveys information in addition to the content of the video, then a description of that information must also be included with the description(s) of the video that are supplied for accessibility (e.g. alt, longdesc, transcript, etc.)."
> 
A description of the video is not the same thing as a description of a
rich image that is published to stand for the video.


It's not a video until the video is running. Until then it's an icon for
the video, or a poster for the video, or the magic doo-hickie that tells
you something about the video (or not).

Two different things, semantically disparate. Therefore, they obviously
need semantically distinct description. This should be obvious, but it
seems it isn't. So, consider that concattinating these two functions,
whether in one's own mind or in the markup that provides access, is
unacceptable.

Janina

> 
> David Singer
> Multimedia and Software Standards, Apple Inc.

-- 

Janina Sajka,	Phone:	+1.443.300.2200
		sip:janina@asterisk.rednote.net

Chair, Open Accessibility	janina@a11y.org	
Linux Foundation		http://a11y.org

Chair, Protocols & Formats
Web Accessibility Initiative	http://www.w3.org/wai/pf
World Wide Web Consortium (W3C)
Received on Wednesday, 21 March 2012 20:59:38 UTC

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