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Re: Video Poster image

From: Gregory J. Rosmaita <oedipus@hicom.net>
Date: Wed, 8 Dec 2010 16:46:07 +0000
To: David Singer <singer@apple.com>, HTML Accessibility Task Force <public-html-a11y@w3.org>
Cc: Maciej Stachowiak <mjs@apple.com>, Ian Hickson <ian@hixie.ch>
Message-Id: <20101208163838.M96014@hicom.net>
aloha, david!

the video is the video itself, full stop...  the poster image is akin 
to either a conventional movie poster (with the names of actors, other 
credits, copyright info, and running time -- the two are NOT the same, 
just like the DVD/Bluray disc you put into a player is the "video" 
portion of the equation, the packaging usually contains a version of the 
film's original release poster with added information which most 
probably will NOT be included in a single frame, which may be the
"title card" for the movie, the first frame of the opening credits,
or simply a black frame containing nothing that can be consumed by 

thus, video and poster are VASTLY different concepts, and while i 
agree that the 3 points you highlighted need to be urgently 
addressed, so too does the video and poster issue -- a single 
frame of a video may be completely meaningless to those who cannot
visually process it, making the information contained in the poster
essential -- especially if it indicates that audio description, 
closed captioning, and multiple language tracks are available

  The optimist thinks that this is the best of all
  possible worlds; the pessimist knows it is.
 Gregory J. Rosmaita: gregory@linux-foundation.org
Vice-Chair & Webmaster, Open Accessibility Workgroup
http://a11y.org/              http://a11y.org/specs/

---------- Original Message -----------
From: David Singer <singer@apple.com>
To: HTML Accessibility Task Force <public-html-a11y@w3.org>
Cc: Maciej Stachowiak <mjs@apple.com>, Ian Hickson <ian@hixie.ch>
Sent: Wed, 8 Dec 2010 09:27:52 -0600
Subject: Re: Video Poster image (was RE: DRAFT analysis of fallback
mechanisms for embedded content ACTION-66)

> I agree, a poster IS the video.  we should not encourage bad 
> practices by pretending/allowing otherwise.
> I have three questions about annotating audio/video resources:
>      can I 
>         (a) provide a short "alt" text? for video 
>         (b) provide a long description?  
>         (c) link to a transcript?
> These seem to be more important, to me, than worrying about 
> whether the poster is semantically different from the video.
> David Singer
> Multimedia and Software Standards, Apple Inc.
------- End of Original Message -------
Received on Wednesday, 8 December 2010 16:46:44 UTC

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