- From: Thierry MICHEL <tmichel@w3.org>
- Date: Tue, 12 Oct 2010 08:54:35 +0200
- To: Silvia Pfeiffer <silviapfeiffer1@gmail.com>, James Salsman <jsalsman@talknicer.com>
- CC: "public-media-annotation@w3.org" <public-media-annotation@w3.org>
Silvia, This is exactly what I have told James, in my earlier email in response to his last call comment. http://lists.w3.org/Archives/Public/public-media-annotation/2010Sep/0225.html extract: "To focus on your request to include VP8 and speex in our Ontology, the mapping tables are intended for multimedia *metadata formats*. - VP8 is an open video compression format (codec). - Speex is a free audio codec for Free Speech. These are not *metadata formats*, and therefore not meant to be listed in our mapping tables". As James raised an objection if this 2 formats were not included, I have asked him to provide the 2 mapping tables for Speex and VP8, and see what he could provide ... And, as we had concluded in the MAWG that on the container carries metadata, I have in a couple of emails asked James to provide a mapping table for the media container formats WebM. an pointed to the template to use http://www.w3.org/2008/WebVideo/Annotations/drafts/ontology10/CR/mapping_table-php.html I am still waiting for James to provide this information if he wants to see it in the spec. A place holder for this containet is already created http://dev.w3.org/2008/video/mediaann/mediaont-1.0/mediaont-1.0.html#iddiv4x2x27165 Cheers, Thierry. Le 12/10/2010 03:43, Silvia Pfeiffer a écrit : > James, Thierry, > > Speex and VP8 are codecs and don't by themselves have accessible metadata. > They, however, are not distributed as codec data, but rather inside media > containers. > > When we talk about Speex in files, it comes in an Ogg container and as such > http://dev.w3.org/2008/video/mediaann/mediaont-1.0/mediaont-1.0.html#iddiv4x2x16776should > satisfy your need for a mapping table. > > When we talk about VP8 in files, it comes in a WebM container with Vorbis. > Somebody needs to fill in > http://dev.w3.org/2008/video/mediaann/mediaont-1.0/mediaont-1.0.html#iddiv4x2x27165! > If nobody is doing it, let me know and I'll make the time to dig it > out. > > Cheers, > Silvia. > > > On Tue, Oct 12, 2010 at 3:54 AM, Thierry MICHEL<tmichel@w3.org> wrote: > >> Dear James, >> >> In your latest email to the MAWG response to your comment, you seem to >> disagree with the MAWG proposal. >> >> >> http://lists.w3.org/Archives/Public/public-media-annotation/2010Sep/0245.html >> >> "I don't agree with the statement that speex or VP8 are not metadata >> formats. They are audio and audiovisual media formats which contain >> both metadata and data in their specifications. >> This disagreement can be resolved if speex and VP8 are included in the >> media ontology". >> >> The group is currently discussing your objection. Speex is an audio >> format, and the Ontology spec is mainly incorporating images and video >> metadata formats. >> >> To move forward, could you please send the MAWG the 2 mapping tables for >> Speex and VP8. >> >> Please use as template the following tables with the exact name of the >> property being mapped to, like ma:identifier, ma:title, etc. >> and the same columns: Relation, How to do the mapping, Datatype, Required >> vs Optional,XPath >> >> templates: >> >> http://dev.w3.org/2008/video/mediaann/mediaont-1.0/mediaont-1.0.html#metadata-mapping-table >> >> Could you please send these ASAP as we are about to release a new >> publication of the Media Ontology spec >> >> >> >> Best regards, >> Thierry Michel >> >> >> >
Received on Tuesday, 12 October 2010 06:55:02 UTC