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RE: awareness of HTML5 media multitrack API

From: Evain, Jean-Pierre <evain@ebu.ch>
Date: Sat, 20 Feb 2010 22:46:54 +0100
To: "'Bailer, Werner'" <werner.bailer@joanneum.at>, Silvia Pfeiffer <silviapfeiffer1@gmail.com>
CC: "public-media-annotation@w3.org" <public-media-annotation@w3.org>
Message-ID: <7D1656F54141C042A1B2556AE5237D60010C9D7145E8@GVAMAIL.gva.ebu.ch>
Dear Werner,

TV-Anytime, EBUCore and newsML-G2 actually permit to define the role, type and language of tracks (video, audio or others). This is common practice.



-----Original Message-----
From: public-media-annotation-request@w3.org [mailto:public-media-annotation-request@w3.org] On Behalf Of Bailer, Werner
Sent: mercredi, 17. février 2010 09:25
To: Silvia Pfeiffer
Cc: public-media-annotation@w3.org
Subject: RE: awareness of HTML5 media multitrack API

Dear Silvia,

Thanks for bringing this to our attention. 

I think the relation to our API is discovering the tracks and getting their properties (identifier, role, type, language). This issue was raised by Raphaël some time ago [1]. The result of the short discussion on the list was that ma:fragments needs to return also track and not just temporal/spatial fragments to support this. I think we have not reached a formal decision on this, so I suggest to put it on the agenda of the F2F meeting next week.

This would allow querying for the list of tracks using ma:fragments, and then you could request further properties for each of the tracks. We could think about providing also a shortcut here, i.e. function that returns the list of track objects and their properties. Any views on this from Chris, Florian, Wonsuk, others?

Best regards,

[1] http://lists.w3.org/Archives/Public/public-media-annotation/2009Nov/0090.html

> -----Original Message-----
> From: public-media-annotation-request@w3.org [mailto:public-media-
> annotation-request@w3.org] On Behalf Of Silvia Pfeiffer
> Sent: Dienstag, 16. Februar 2010 21:17
> To: public-media-annotation@w3.org
> Subject: awareness of HTML5 media multitrack API
> Hi all,
> I am not sure if you are aware and I am not sure how much overlap
> there is with the work you do, but in the media accessibility task
> force we are currently discussing introduction of a JavaScript API for
> HTML5 media resources, see
> http://www.w3.org/WAI/PF/HTML/wiki/Media_MultitrackAPI . The idea is
> to get to the information of the individual tracks of a media resource
> and find out information about it.
> If there is any way to integrate the media annotations API that you
> are working on with this, I would be interested to hear about it.
> Best Regards,
> Silvia.

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Received on Saturday, 20 February 2010 21:47:36 UTC

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