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Re: Response to your LC Comment -2393 on Media Ontology spec

From: Thierry MICHEL <tmichel@w3.org>
Date: Tue, 12 Oct 2010 08:54:35 +0200
Message-ID: <4CB4062B.6010604@w3.org>
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 GMT

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