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Re: change proposals for issue-152

From: Mark Watson <watsonm@netflix.com>
Date: Wed, 23 Mar 2011 18:46:09 -0700
To: Silvia Pfeiffer <silviapfeiffer1@gmail.com>
CC: public-html <public-html@w3.org>
Message-ID: <FFD016B0-C285-4A0C-A824-A3E541799800@netflix.com>

I think one thing which is missing from this proposal is an API to discover in-band tracks.

A simple option would be to change the MediaElement.tracks array to list all kinds of track (audio/video/text and both those declared explicitly with markup and in-band ones). This can be queried to find the available tracks and new <audio> or <video> elements created for the ones that should be rendered, using a src with a media fragment to refer to in-band tracks. I'm happy to help update the proposal if people think this makes sense.


On Mar 21, 2011, at 10:34 PM, Silvia Pfeiffer wrote:

> Dear WG chairs,
> Please find a change proposal for issue-152: multitrack media API here:
> http://www.w3.org/WAI/PF/HTML/wiki/Media_Multitrack_Change_Proposal
> Best Regards,
> Silvia.
> This change proposal was created by a sub-group of the W3C Media
> Accessibility Task Force. Many alternatives were looked at during the
> process of creation of this change proposal (see [1]) and indeed not
> all possibilities have been analysed to date. In fact, some of the
> Task Force members are not in agreement with this proposal, which has
> resulted in a second change proposal (see [2]). Further, several
> members of the Task Force think that Ian's proposal (see [3]) is also
> of high quality. It seems we just simply lack further discussion time
> to arrive at a solution that everyone can agree to.
> [1] http://www.w3.org/WAI/PF/HTML/wiki/Media_Multitrack_Media_API
> [2] http://www.w3.org/WAI/PF/HTML/wiki/Media_Multitrack_Change_Proposal_2
> [3] http://lists.w3.org/Archives/Public/public-html/2011Mar/0436.html
Received on Thursday, 24 March 2011 01:46:44 UTC

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