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Media Matrix: Realign DV-1, DV-3, & DV-10

From: Janina Sajka <janina@rednote.net>
Date: Thu, 21 Oct 2010 12:03:29 -0400
To: HTML Accessibility Task Force <public-html-a11y@w3.org>
Message-ID: <20101021160329.GW2595@sonata.rednote.net>
Currently DV-1 is (properly) a "must," but DV-3 & DV-10 are "should."

This doesn't make sense. If the additional track resources which are the
topics of DV-3 & DV-10 exist, they should simply be presented to the
user as additional options.

The metadata for each available track resource will need to be read
regardless. That's the only way the user agent can identify which
resources exist, captions, described videos, sign language translations,
etc. Thus, the user agent may as well present the availability of
multiple described video tracks, and described video tracks in other
languages---it's already sourced that metadata. It would actually be
more work to create a user agent that somehow only provided one option,
and skipped the others, and that just doesn't make sense.

As things stand, it can only be confusing to some developer who tries to
understand why 3 & 10 are "should," while 1 is "must."

Suggest all three of these are "must."



Janina Sajka,	Phone:	+1.443.300.2200

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 Thursday, 21 October 2010 16:04:00 UTC

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