- From: Raphaël Troncy <raphael.troncy@cwi.nl>
- Date: Wed, 19 May 2010 10:27:42 +0200
- To: Media Fragment <public-media-fragment@w3.org>
Dear all, I took this action last week, in order to notify all some of the changes we have discussed regarding the output of test cases dealing with non-existing and illegal fragments. Note that these changes have already been committed in the Wiki by Silvia at http://www.w3.org/2008/WebVideo/Fragments/wiki/TemporalDimension as she has announced today. The resolution is as follow: in case of an empty fragment, e.g. #t=a,a where a>=0, or an non-existing fragment, e.g. #t=a,b where a>b, we consider that a media fragment aware UA knows beforehand that this will be an empty fragment (resp. an non-existing fragment) and SHOULD therefore: - a) if the UA does not have the setup data for this media, issue a Range request with just "include-setup", and receive the setup data in a 206 Partial Content response. - b) if the UA has already the setup data for this media, do nothing (no HTTP request issued). The situation where no request is issued might be perceived as irritative. The rationale is that this is what currently happens when one click on a non-existent fragment of an HTML page. If you disagree with this resolution, then please shout! Next step will be to modify the WD with this modification. Anyone? Tracker, this is ACTION-163. Raphaël -- 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, 19 May 2010 08:29:21 UTC