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[Bug 12546] MEDIA CONTROLLER requires autoplay attribute for grouped multitrack

From: <bugzilla@jessica.w3.org>
Date: Sat, 23 Apr 2011 21:51:25 +0000
To: public-html-a11y@w3.org
Message-Id: <E1QDkjd-0007gz-2C@jessica.w3.org>
http://www.w3.org/Bugs/Public/show_bug.cgi?id=12546

Tab Atkins Jr. <jackalmage@gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |jackalmage@gmail.com

--- Comment #2 from Tab Atkins Jr. <jackalmage@gmail.com> 2011-04-23 21:51:24 UTC ---
The MediaController does indeed autoplay by default.  This does *not* mean that
all the slaved media elements autoplay; it just means that the media controller
itself is either paused (perhaps implicitly) or playing.

The "perhaps implicitly" is the important bit.  A MediaController is "blocked"
(not playing) if it's paused, if any of its slaves are blocked, if any of its
autoplaying slaves are paused, or if all of its non-autoplaying slaves are
paused.  Note that non-autoplaying media elements are paused by default, so if
you hook up a media controller to a bunch of video elements, and the UA has
disabled autoplaying, then the controller itself will be blocked by default
until you start playing one of the slaves.

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Received on Saturday, 23 April 2011 21:51:26 UTC

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