[whatwg] Note on 4.8.7 (video) and 4.8.8 (audio)
ian at hixie.ch
Sat Sep 26 19:35:34 PDT 2009
On Thu, 17 Sep 2009, Michael(tm) Smith wrote:
> Ian Hickson <ian at hixie.ch>, 2009-09-14 06:52 +0000:
> > The whole point is that this is _not_ fallback content of that nature.
> > That's what the note was saying. Linking to that section would be
> > flat-out wrong. Is there some other way in which I can clarify that
> > the contents of the element are not "fallback content" as defined by
> > the spec?
> The note for the video element reads:
> In particular, this content is not intended to address
> accessibility concerns. To make video content accessible to the
> blind, deaf, and those with other physical or cognitive
> disabilities, authors are expected to provide alternative media
> streams and/or to embed accessibility aids (such as caption or
> subtitle tracks) into their media streams.
> What would then be the recommended way to provide fallback content for a
> video like the following?
> That's a 6-second video of a Red-and-green Macaw moving along a tree
> branch, with the only sounds being it making a brief vocalization, and
> some background sounds. It doesn't seem to lend itself either to
> fallback content provided by alternative media streams or by embedded
> captions or subtitles.
On Thu, 17 Sep 2009, Jim Jewett wrote:
> That paragraph sounds like a reasonable alternative -- another argument
> for the text/html (or text/plain) source as a final alternative.
> On the other hand, I personally would prefer that sort of caption before
> deciding whether to watch in the first place, so maybe it could just be
> handled with an aria-describedby.
Or even just having that paragraph before the video, yeah. I don't really
see much that could be done to make that video enjoyable to someone who's
both blind and deaf. It's similar to Rorschach inkblot tests or Pantone
colour swatches -- there's not much point in trying to convey the
information any other way, the information is specifically sense-oriented
and isn't media-independent.
Ian Hickson U+1047E )\._.,--....,'``. fL
http://ln.hixie.ch/ U+263A /, _.. \ _\ ;`._ ,.
Things that are impossible just take longer. `._.-(,_..'--(,_..'`-.;.'
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