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Re: [media] adding autoplay requirements to requirements doc

From: Philip Jägenstedt <philipj@opera.com>
Date: Tue, 19 Apr 2011 10:29:19 +0200
To: public-html-a11y@w3.org
Message-ID: <op.vt6e65zvsr6mfa@localhost.localdomain>
On Tue, 19 Apr 2011 03:44:33 +0200, Silvia Pfeiffer  
<silviapfeiffer1@gmail.com> wrote:

> NOTE: This could be enabled through encouraging publishers to us
> @autoplay, encouraging UAs to implement accessibility settings that
> allow to turn off all autoplay, and encouraging AT to implement a
> shortcut key to stop all autoplay on a Web page.

Note that Opera already has a user preference for disabling autoplay, see  

As for stopping all playing elements, that is not related to autoplay,  
since to be effective it would also have to stop elements that were  
started by scripts. Possible solutions here are:

1. Requiring explicit approval for all media playback, with the  
possibility of remembering approval per domain.

2. Exposing a list of all media elements associated with a document to  
scripts so that extensions could find and pause all media elements.  
Currently this is not possible because elements can be created by scripts  
and set to play without being inserted into a document, so e.g.  
document.querySelector('audio,video') does not find them.

Philip Jägenstedt
Core Developer
Opera Software
Received on Tuesday, 19 April 2011 08:29:48 UTC

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