W3C home > Mailing lists > Public > public-html-a11y@w3.org > September 2010

[Bug 10642] No alternative text description for video key frame (poster)

From: <bugzilla@jessica.w3.org>
Date: Wed, 29 Sep 2010 00:44:41 +0000
To: public-html-a11y@w3.org
Message-Id: <E1P0kmn-0004mS-Ic@jessica.w3.org>
http://www.w3.org/Bugs/Public/show_bug.cgi?id=10642

--- Comment #2 from Everett Zufelt <everett@zufelt.ca> 2010-09-29 00:44:40 UTC ---
(In reply to comment #1)
> Could you give some examples of what such alternative text would look like? I'm
> having trouble imagining this actually improving accessibility.
> 
> For example, what would the right alternative text be for the various poster
> images on this page be?:
> 
>   
> http://googleblog.blogspot.com/2010/09/125-video-shortlist-announced-today-for.html

I actually cannot give suggestions for alternative text for those images, as I
am a completely blind screen-reader user.  Hopefully somebody else will be able
to suggest appropriate alternative descriptions.

I would suggest, generally, that the same practice be followed for providing
alt for poster images as is followed for providing alt for any image.  That is,
the content author has explicitly set a poster for the video, for any of a
number of reasons.  Perhaps this is set as a company logo, a key frame from the
video to entice the visitor to press play, etc.  As a user who cannot perceive
the image I would like the author to be able to provide text to be used as an
alternative to the poster image, so that the meaning and purpose they are
attempting to provide visually may be provided textually to me.

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Received on Wednesday, 29 September 2010 00:44:43 UTC

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