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Re: Media Fragment URI used for HTML <video> multitrack feature

From: Raphaël Troncy <raphael.troncy@eurecom.fr>
Date: Tue, 22 Mar 2011 11:38:54 +0100
Message-ID: <4D887C3E.4090209@eurecom.fr>
To: Philip Jägenstedt <philipj@opera.com>
CC: public-media-fragment@w3.org
Dear Philip,

Thanks for this notification.

> Suggestion by Hixie just in:
> http://lists.w3.org/Archives/Public/public-html/2011Mar/0436.html
> See
> http://www.whatwg.org/specs/web-apps/current-work/complete/video.html#selecting-specific-audio-and-video-tracks-declaratively
> for how MF is used.
> The assumption here was clearly that MF can only identify a single
> track, which is not true.

Is it really the assumption of Hixie? In 
http://lists.w3.org/Archives/Public/public-html/2011Mar/0436.html, Hixie 
gave as example:

<video src="movie.vid#track=Video&amp;track=English" autoplay controls 

which is a media fragment URI that selects 2 tracks.

> The fix would be to either change MF to only
> allow a single track, or special-case it in HTML.

I don't see the conflict yet. Media Fragment URI spec allows to select 
multiple tracks as this was a clear requirement so there is no reason to 
change this.


Raphaël Troncy
EURECOM, Multimedia Communications Department
2229, route des Crêtes, 06560 Sophia Antipolis, France.
e-mail: raphael.troncy@eurecom.fr & raphael.troncy@gmail.com
Tel: +33 (0)4 - 9300 8242
Fax: +33 (0)4 - 9000 8200
Web: http://www.eurecom.fr/~troncy/
Received on Tuesday, 22 March 2011 10:38:38 UTC

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