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Fwd: Re: Flash container example for the Ontology for Media Resources 1.0

From: Thierry MICHEL <tmichel@w3.org>
Date: Wed, 29 Jun 2011 13:57:04 +0200
Message-ID: <4E0B1310.5040109@w3.org>
To: "public-media-annotation@w3.org" <public-media-annotation@w3.org>
resent to the group

-------- Message original --------
Sujet: Re: Flash container example for the Ontology for Media Resources 1.0
Date : Sun, 26 Jun 2011 16:30:47 +0200
De : Felix Sasaki <felix.sasaki@dfki.de>
Pour : Alan Lillich <alillich@adobe.com>
Copie  : tmichel@w3.org <tmichel@w3.org>

Alan, Thierry,

attached are the RDF files for sec. 5.2.3.2.1 and 5.2.3.2.2. In both cases
there are three "to be done" mappings: media annotations  compression,
averageBitRate, numTracks. Looking at the mapping description in the
ontology, the data and Alan's explanations, it seems that there is no direct
mapping possible, though I may have missed something.

Regards,

Felix

2011/6/23 Felix Sasaki <felix.sasaki@dfki.de>

> Alan and Thierry again,
>
> we had some emergencies at work today, so I did not get to do this. I will
> send you the files before Monday.
>
> Felix
>
>
> 2011/6/23 Felix Sasaki <felix.sasaki@dfki.de>
>
>> Alan,
>>
>> sorry for the late reply. Yes, that helps. At Thierry: I will send you RDF
>> versions today at the end of day (Europe).
>>
>> Felix
>>
>> 2011/6/21 Alan Lillich <alillich@adobe.com>
>>
>>> Felix,
>>>
>>> I know I'm confused as to exactly what you guys want. And I think you
>>> might be confused about the use of metadata in FLV and F4V. There is no such
>>> thing as an "XMP sidecar" for FLV and F4V. The XMP is embedded. I've
>>> extracted that XMP and sent it below. There are separate issues with non-XMP
>>> metadata in FLV and F4V.
>>>
>>> In the case of FLV there is a smallish "onMetaData" tag that contains
>>> technical metadata. There is no RDF form for this. It is binary metadata,
>>> the details are in the FLV file format spec. The sample file that Frank
>>>  sent contains these values (partial output from an FLV dump tool we have):
>>>
>>>    onMetaData @ 0x18 : ECMA array [10]
>>>      duration @ 0x2A : float = 24.858000
>>>      width @ 0x3D : float = 320.000000
>>>      height @ 0x4D : float = 160.000000
>>>      videodatarate @ 0x5E : float = 250.000000
>>>      framerate @ 0x76 : float = 23.976013
>>>      videocodecid @ 0x8A : float = 4.000000
>>>      audiodatarate @ 0xA1 : float = 128.000000
>>>      audiodelay @ 0xB9 : float = 0.027000
>>>      audiocodecid @ 0xCE : float = 2.000000
>>>      canSeekToEnd @ 0xE5 : bool = 1
>>>
>>> The "@ 0x..." part is a file offset. None of this is implicitly mapped to
>>> XMP by the Adobe XMP Toolkit SDK, although the app creating the FLV can
>>> duplicate some of this in the xmpDM: namespace. And did in the example Frank
>>> sent.
>>>
>>> In the case of F4V, any MPEG-4 as far as Adobe is concerned, there is
>>> some technical metadata scattered around the file as shown in 5.2.3.2.2 F4V.
>>> And sometimes requiring computation. I don't have an easy way to dump this
>>> technical metadata from a file. Like the FLV example, the creation app
>>> choose to duplicate some of this info in the XMP's xmpDM namespace.
>>>
>>> =================================
>>> XMP from AdobeBand_800K_H264_1.flv:
>>>
>>>   <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
>>>      <rdf:Description rdf:about=""
>>>            xmlns:xmp="http://ns.adobe.com/xap/1.0/">
>>>         <xmp:CreateDate>2011-06-07T21:50:44.00304+05:30</xmp:CreateDate>
>>>         <xmp:ModifyDate>2011-06-07T21:50:47.0021+05:30</xmp:ModifyDate>
>>>         <xmp:MetadataDate>2011-06-07T21:50:47+05:30</xmp:MetadataDate>
>>>         <xmp:NativeDigests rdf:parseType="Resource">
>>>            <xmp:FLV>BE43924B4416E4ABD0ABEFCA877AB863</xmp:FLV>
>>>         </xmp:NativeDigests>
>>>      </rdf:Description>
>>>      <rdf:Description rdf:about=""
>>>            xmlns:xmpMM="http://ns.adobe.com/xap/1.0/mm/"
>>>            xmlns:stEvt="http://ns.adobe.com/xap/1.0/sType/ResourceEvent#
>>> ">
>>>
>>> <xmpMM:OriginalDocumentID>xmp.did:CDB5C2062291E011985F90416E3DB9C2</xmpMM:OriginalDocumentID>
>>>
>>> <xmpMM:InstanceID>xmp.iid:D1B5C2062291E011985F90416E3DB9C2</xmpMM:InstanceID>
>>>
>>> <xmpMM:DocumentID>xmp.did:D1B5C2062291E011985F90416E3DB9C2</xmpMM:DocumentID>
>>>         <xmpMM:History>
>>>            <rdf:Seq>
>>>               <rdf:li rdf:parseType="Resource">
>>>                  <stEvt:action>saved</stEvt:action>
>>>
>>>  <stEvt:instanceID>xmp.iid:CEB5C2062291E011985F90416E3DB9C2</stEvt:instanceID>
>>>                  <stEvt:when>2011-06-07T21:50:14+05:30</stEvt:when>
>>>                  <stEvt:softwareAgent>Adobe Adobe Media Encoder
>>> 5.0.0</stEvt:softwareAgent>
>>>                  <stEvt:changed>/metadata</stEvt:changed>
>>>               </rdf:li>
>>>               <rdf:li rdf:parseType="Resource">
>>>                  <stEvt:action>saved</stEvt:action>
>>>
>>>  <stEvt:instanceID>xmp.iid:CFB5C2062291E011985F90416E3DB9C2</stEvt:instanceID>
>>>                  <stEvt:when>2011-06-07T21:50:24+05:30</stEvt:when>
>>>                  <stEvt:softwareAgent>Adobe Adobe Media Encoder
>>> 5.0.0</stEvt:softwareAgent>
>>>                  <stEvt:changed>/metadata</stEvt:changed>
>>>               </rdf:li>
>>>               <rdf:li rdf:parseType="Resource">
>>>                  <stEvt:action>saved</stEvt:action>
>>>
>>>  <stEvt:instanceID>xmp.iid:D1B5C2062291E011985F90416E3DB9C2</stEvt:instanceID>
>>>                  <stEvt:when>2011-06-07T21:50:47+05:30</stEvt:when>
>>>                  <stEvt:softwareAgent>Adobe Adobe Media Encoder
>>> 5.0.0</stEvt:softwareAgent>
>>>               </rdf:li>
>>>            </rdf:Seq>
>>>         </xmpMM:History>
>>>      </rdf:Description>
>>>      <rdf:Description rdf:about=""
>>>            xmlns:xmpDM="http://ns.adobe.com/xmp/1.0/DynamicMedia/"
>>>            xmlns:stDim="http://ns.adobe.com/xap/1.0/sType/Dimensions#">
>>>         <xmpDM:videoFrameRate>23.976024</xmpDM:videoFrameRate>
>>>         <xmpDM:videoFieldOrder>Progressive</xmpDM:videoFieldOrder>
>>>         <xmpDM:videoPixelAspectRatio>1/1</xmpDM:videoPixelAspectRatio>
>>>         <xmpDM:audioSampleRate>44100</xmpDM:audioSampleRate>
>>>         <xmpDM:audioSampleType>Compressed</xmpDM:audioSampleType>
>>>         <xmpDM:audioChannelType>Stereo</xmpDM:audioChannelType>
>>>         <xmpDM:duration rdf:parseType="Resource">
>>>            <xmpDM:value>2248320</xmpDM:value>
>>>            <xmpDM:scale>1/90000</xmpDM:scale>
>>>         </xmpDM:duration>
>>>         <xmpDM:startTimecode rdf:parseType="Resource">
>>>            <xmpDM:timeFormat>23976Timecode</xmpDM:timeFormat>
>>>            <xmpDM:timeValue>00:00:00:00</xmpDM:timeValue>
>>>         </xmpDM:startTimecode>
>>>         <xmpDM:videoFrameSize rdf:parseType="Resource">
>>>            <stDim:w>320</stDim:w>
>>>            <stDim:h>160</stDim:h>
>>>            <stDim:unit>pixel</stDim:unit>
>>>         </xmpDM:videoFrameSize>
>>>         <xmpDM:altTimecode rdf:parseType="Resource">
>>>            <xmpDM:timeValue>00:00:00:00</xmpDM:timeValue>
>>>            <xmpDM:timeFormat>23976Timecode</xmpDM:timeFormat>
>>>         </xmpDM:altTimecode>
>>>      </rdf:Description>
>>>      <rdf:Description rdf:about=""
>>>            xmlns:dc="http://purl.org/dc/elements/1.1/">
>>>         <dc:format>FLV | F4V</dc:format>
>>>      </rdf:Description>
>>>   </rdf:RDF>
>>>
>>> ===============================
>>> XMP from AdobeBand_800K_H264.f4v:
>>>
>>>   <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">
>>>      <rdf:Description rdf:about=""
>>>            xmlns:xmp="http://ns.adobe.com/xap/1.0/">
>>>         <xmp:CreateDate>2011-06-06T21:50:24+05:30</xmp:CreateDate>
>>>         <xmp:ModifyDate>2011-06-06T21:50:24+05:30</xmp:ModifyDate>
>>>         <xmp:MetadataDate>2011-06-07T21:50:26+05:30</xmp:MetadataDate>
>>>      </rdf:Description>
>>>      <rdf:Description rdf:about=""
>>>            xmlns:xmpDM="http://ns.adobe.com/xmp/1.0/DynamicMedia/"
>>>            xmlns:stDim="http://ns.adobe.com/xap/1.0/sType/Dimensions#">
>>>         <xmpDM:videoFrameRate>23.976024</xmpDM:videoFrameRate>
>>>         <xmpDM:videoFieldOrder>Progressive</xmpDM:videoFieldOrder>
>>>         <xmpDM:videoPixelAspectRatio>1/1</xmpDM:videoPixelAspectRatio>
>>>         <xmpDM:audioSampleRate>44100</xmpDM:audioSampleRate>
>>>         <xmpDM:audioSampleType>Compressed</xmpDM:audioSampleType>
>>>         <xmpDM:audioChannelType>Stereo</xmpDM:audioChannelType>
>>>         <xmpDM:duration rdf:parseType="Resource">
>>>            <xmpDM:value>2237234</xmpDM:value>
>>>            <xmpDM:scale>1/90000</xmpDM:scale>
>>>         </xmpDM:duration>
>>>         <xmpDM:startTimecode rdf:parseType="Resource">
>>>            <xmpDM:timeFormat>23976Timecode</xmpDM:timeFormat>
>>>            <xmpDM:timeValue>00:00:00:00</xmpDM:timeValue>
>>>         </xmpDM:startTimecode>
>>>         <xmpDM:videoFrameSize rdf:parseType="Resource">
>>>            <stDim:w>320</stDim:w>
>>>            <stDim:h>160</stDim:h>
>>>            <stDim:unit>pixel</stDim:unit>
>>>         </xmpDM:videoFrameSize>
>>>         <xmpDM:altTimecode rdf:parseType="Resource">
>>>            <xmpDM:timeValue>00:00:00:00</xmpDM:timeValue>
>>>            <xmpDM:timeFormat>23976Timecode</xmpDM:timeFormat>
>>>         </xmpDM:altTimecode>
>>>      </rdf:Description>
>>>      <rdf:Description rdf:about=""
>>>            xmlns:xmpMM="http://ns.adobe.com/xap/1.0/mm/"
>>>            xmlns:stEvt="http://ns.adobe.com/xap/1.0/sType/ResourceEvent#
>>> ">
>>>
>>> <xmpMM:OriginalDocumentID>xmp.did:CDB5C2062291E011985F90416E3DB9C2</xmpMM:OriginalDocumentID>
>>>
>>> <xmpMM:InstanceID>xmp.iid:D0B5C2062291E011985F90416E3DB9C2</xmpMM:InstanceID>
>>>
>>> <xmpMM:DocumentID>xmp.did:D0B5C2062291E011985F90416E3DB9C2</xmpMM:DocumentID>
>>>         <xmpMM:History>
>>>            <rdf:Seq>
>>>               <rdf:li rdf:parseType="Resource">
>>>                  <stEvt:action>saved</stEvt:action>
>>>
>>>  <stEvt:instanceID>xmp.iid:CEB5C2062291E011985F90416E3DB9C2</stEvt:instanceID>
>>>                  <stEvt:when>2011-06-07T21:50:14+05:30</stEvt:when>
>>>                  <stEvt:softwareAgent>Adobe Adobe Media Encoder
>>> 5.0.0</stEvt:softwareAgent>
>>>                  <stEvt:changed>/metadata</stEvt:changed>
>>>               </rdf:li>
>>>               <rdf:li rdf:parseType="Resource">
>>>                  <stEvt:action>saved</stEvt:action>
>>>
>>>  <stEvt:instanceID>xmp.iid:D0B5C2062291E011985F90416E3DB9C2</stEvt:instanceID>
>>>                  <stEvt:when>2011-06-07T21:50:26+05:30</stEvt:when>
>>>                  <stEvt:softwareAgent>Adobe Adobe Media Encoder
>>> 5.0.0</stEvt:softwareAgent>
>>>               </rdf:li>
>>>            </rdf:Seq>
>>>         </xmpMM:History>
>>>      </rdf:Description>
>>>      <rdf:Description rdf:about=""
>>>            xmlns:dc="http://purl.org/dc/elements/1.1/">
>>>         <dc:format>FLV | F4V</dc:format>
>>>      </rdf:Description>
>>>   </rdf:RDF>
>>>
>>> hope this helps somewhat,
>>> Alan
>>
>>
>>
>>
>> --
>> Prof. Dr. Felix Sasaki
>> Senior Researcher / Professor at University of Applied Sciences Potsdam
>> DFKI GmbH, Alt-Moabit 91c, 10559 Berlin, Germany http://www.dfki.de
>> phone: +49-30-23895-1807 (fax: -1810)
>> ------------------------------------------------
>> Deutsches Forschungszentrum fuer Kuenstliche Intelligenz GmbH
>> Firmensitz: Trippstadter Strasse 122, D-67663 Kaiserslautern
>> Geschaeftsfuehrung: Prof. Dr. Dr. h.c. mult. Wolfgang Wahlster
>> (Vorsitzender), Dr. Walter Olthoff
>> Vorsitzender des Aufsichtsrats: Prof. Dr. h.c. Hans A. Aukes
>> Amtsgericht Kaiserslautern, HRB 2313
>>
>
>
>
> --
> Prof. Dr. Felix Sasaki
> Senior Researcher / Professor at University of Applied Sciences Potsdam
> DFKI GmbH, Alt-Moabit 91c, 10559 Berlin, Germany http://www.dfki.de
> phone: +49-30-23895-1807 (fax: -1810)
> ------------------------------------------------
> Deutsches Forschungszentrum fuer Kuenstliche Intelligenz GmbH
> Firmensitz: Trippstadter Strasse 122, D-67663 Kaiserslautern
> Geschaeftsfuehrung: Prof. Dr. Dr. h.c. mult. Wolfgang Wahlster
> (Vorsitzender), Dr. Walter Olthoff
> Vorsitzender des Aufsichtsrats: Prof. Dr. h.c. Hans A. Aukes
> Amtsgericht Kaiserslautern, HRB 2313
>



-- 
Prof. Dr. Felix Sasaki
Senior Researcher / Professor at University of Applied Sciences Potsdam
DFKI GmbH, Alt-Moabit 91c, 10559 Berlin, Germany http://www.dfki.de
phone: +49-30-23895-1807 (fax: -1810)
------------------------------------------------
Deutsches Forschungszentrum fuer Kuenstliche Intelligenz GmbH
Firmensitz: Trippstadter Strasse 122, D-67663 Kaiserslautern
Geschaeftsfuehrung: Prof. Dr. Dr. h.c. mult. Wolfgang Wahlster
(Vorsitzender), Dr. Walter Olthoff
Vorsitzender des Aufsichtsrats: Prof. Dr. h.c. Hans A. Aukes
Amtsgericht Kaiserslautern, HRB 2313



Received on Wednesday, 29 June 2011 11:57:24 UTC

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