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Re: action on 3GPP, MP4 and Movie formats

From: David Singer <singer@apple.com>
Date: Tue, 28 Sep 2010 15:24:10 -0700
Cc: public-media-annotation@w3.org, Joakim Söderberg <joakim.soderberg@ericsson.com>, Daniel Park <soohong.park@samsung.com>
Message-Id: <65DDAE26-952A-4F6D-B71B-9898AAE91CDF@apple.com>
To: tmichel@w3.org
Thank you.

Now I am online and not on a plane...the RFC is 4281.  <http://tools.ietf.org/html/rfc4281>

I'll fill in the relation column, and get you the answers.

On Sep 28, 2010, at 15:15 , Thierry MICHEL wrote:

> David,
> 
> Thanks for your input.
> 
> I have updated the 3 tables (3GP, MP4,MOV) accordingly, with the small differences you mentioned for "ma:description" and "ma:samplingRate"
> 
> These are now ready to be integrated into the spec.
> 
> Please review and let me know if you are fine
> (there are a few question marks which should be resolved: (RFC ????, use MPEG-7, perhaps?)
> 
> 
> About your issue on the column 'relation',
> Relation: the semantic relation. Possible values are: more specific, more general, related, exact, non applicable (N/A).
> 
> see for example
> http://dev.w3.org/2008/video/mediaann/mediaont-1.0/mediaont-1.0.html#metadata-mapping-table
> 
> 
> 3GP table:
> http://www.w3.org/2008/WebVideo/Annotations/drafts/ontology10/CR/test.php?table=containerGP
> 
> MP4 table:
> http://www.w3.org/2008/WebVideo/Annotations/drafts/ontology10/CR/test.php?table=containerMPEG4
> 
> MOV table:
> http://www.w3.org/2008/WebVideo/Annotations/drafts/ontology10/CR/test.php?table=containerMOV
> 
> 
> 
> Best,
> 
> thierry
> 
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> Le 28/09/2010 19:19, David Singer a écrit :
>> Hi guys
>> 
>> I filled out the table for 3GPP, and for 99% of the time this also supplies information for MP4 and Movie files as well.
>> 
>> For all these, the only XPath I know that is defined is selecting a track;  in 3GP, MP4 and Movie files, tracks may be identified by track ID, using the ISO/IEC 21000-17:2006 "ffp()" syntax (#ffp(track_ID=101), for example).
>> 
>> The one item that differs between the formats is 'description'.  In 3GPP, this is the dscp user-data item.  In 'classic' movies, it's probably İinf (information about the movie); but the language codes and text encodings used in classic user-data would need some ... exploring.  MP4 files have no native format for expressing this, unless you consider MPEG-7 such.
>> 
>> 
>> I made the table in Excel;  if this is the right information, and the right level of info, Courtney and I could work on getting it into HTML.  (I added a column of 'what this item is' for my own reminder, it's not in the normal tables).
>> 
>> I'm not sure I understand all the columns, mind you.  What goes in 'relation'?
>> 
>> 
>> 
>> This body part will be downloaded on demand.

David Singer
Multimedia and Software Standards, Apple Inc.
Received on Tuesday, 28 September 2010 22:25:18 GMT

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