W3C home > Mailing lists > Public > public-media-fragment@w3.org > November 2010

Re: media fragment URI use on web pages

From: Raphaël Troncy <raphael.troncy@eurecom.fr>
Date: Wed, 17 Nov 2010 10:50:38 +0100
Message-ID: <4CE3A56E.5030409@eurecom.fr>
To: Philip Jägenstedt <philipj@opera.com>
CC: public-media-fragment@w3.org
> For example, we can't
> send additional HTTP headers based on the presence of #t=1 on the first
> request, unless put into the URL/URI/IRI spec itself, which I doubt will
> happen.

Why not? This is exactly what we have discussed at the F2F meeting, read 
http://www.w3.org/2010/11/02-mediafrag-minutes.html#item05. This has 
lead to "ACTION-197: Raphaël to also add in the intro of Section 5 a 
paragraph explaining the optimistic processing of fragments (using 
ranges in seconds)". This is a proposal, but I think worth to investigate.

> Again, the issue Silvia brought up was specifically if we could use MF
> on web pages, i.e. with HTML. http://example.com/video.webm#t=1 should
> just work, whether in <video src> or in the address bar.

Assume that the optimistic processing of fragments is implemented by 
browsers, just for the time dimension (95% of the use cases) using range 
requests expressed in seconds, then, before knowing what the resource 
would be, the browser has issued a range request:
   - if this is a video, then, great it works.
   - if this is a html page, scroll to the section id
   - if this is a html page embedding a video (e.g. a Youtube page), and 
that there is no section id "t=...", then play the video from t
Just a silly proposal.


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 Wednesday, 17 November 2010 09:53:45 UTC

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