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


--- Comment #72 from Silvia Pfeiffer <silviapfeiffer1@gmail.com> 2010-11-14 00:03:38 UTC ---
(In reply to comment #70)
> (In reply to comment #69)
> > 
> > However, my argument is not that we do not need a text alternative for the
> > poster. I do argue that we need that. But I also argue that when we have a text
> > replacement for the video, we can include the text replacement for the poster
> > in that piece of text - it does not have to be separate.
> > 
> > So, as an example: an alternative text for film festival videos may be:
> > "Video poster shows .....blah. Video is about .... blah."
> If the poster alt text is not separate it will be much harder to detect
> programmatically. So tools like a validator / a11y checker / similar can�t help
> authors by checking for video elements that have a poster image but is missing
> alt text for the poster image. Like when the author forgot to add one.

Yes, but it is also impossible to render two different alternative texts for a
single element unit. It's not like the <video> element and the poster are two
separate elements - they are a single entity that is presented to sighted users
as a single object on screen. How should two different alternative texts for a
single object even be rendered?

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Received on Sunday, 14 November 2010 00:03:40 UTC