W3C home > Mailing lists > Public > public-media-annotation@w3.org > November 2010

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

From: Silvia Pfeiffer <silviapfeiffer1@gmail.com>
Date: Sat, 6 Nov 2010 20:41:43 +1100
Message-ID: <AANLkTikEaDpmaEhbuDizD5YNsd=Uu9kBaWkNufOaCb4v@mail.gmail.com>
To: tmichel@w3.org
Cc: "public-media-annotation@w3.org" <public-media-annotation@w3.org>
Here is your table for WebM.
Cheers,
Silvia.


<table class="ta20" border="1">
  <tbody>
    <tr class="ro-header">
      <th class="col-mawg">MAWG</th>
      <th class="col-relation">Relation</th>
      <th class="col-attribute">WebM properties</th>
      <th class="col-how">How to do the mapping</th>
      <th class="col-datatype">Datatype</th>
      <th class="col-xpath">XPath</th>
    </tr>

    <tr class="ro-header">
      <td class="ma" colspan="6">Descriptive Properties (Core Set)</td>
    </tr>
    <tr class="ro-header">
      <td class="col-mawg" colspan="6"><em>Identification</em></td>
    </tr>
    <tr class="ro-even">
      <td class="ma">ma:identifier</td>
      <td>exact</td>
      <td>TrackUID</td>
      <td>A unique ID to identify the Track.</td>
      <td>Unsigned Integer</td>
      <td>N/A</td>
    </tr>
    <tr class="ro-even">
      <td class="ma"></td>
      <td>exact</td>
      <td>diverse Tags (from Matroska, undecided support in WebM)</td>
      <td>Pick one of ISRC (International Standard Recording Code),
MCDI (CDROM TOC), ISBN (International Standard Book Number), BARCODE
(EAN-13 (European Article Numbering) or UPC-A (Universal Product
Code)), CATALOG_NUMBER (label-specific), LABEL_CODE (4-digit or
5-digit number to identify the record label), LCCN (Library of
Congress Control Number)</td>
      <td>String</td>
      <td>N/A</td>
    </tr>
    <tr class="ro-even">
      <td class="ma"></td>
      <td>related</td>
      <td>SegmentFilename (from Matroska, undecided support in WebM)</td>
      <td>SegmentFilename field in Segment information as a filename
corresponding to this segment</td>
      <td>String</td>
      <td>N/A</td>
    </tr>
    <tr class="ro-even">
      <td class="ma">ma:title</td>
      <td>exact</td>
      <td>Title (from Matroska, undecided support in WebM)</td>
      <td>Title field in Segment information as a general name of the
segment</td>
      <td>String</td>
      <td>N/A</td>
    </tr>
    <tr class="ro-even">
      <td class="ma"></td>
      <td>exact</td>
      <td>diverse Tags (from Matroska, undecided support in WebM)</td>
      <td>TITLE (akin to the TIT2 tag in ID3), SUBTITLE (subtitle text)</td>
      <td>String</td>
      <td>N/A</td>
    </tr>
    <tr class="ro-even">
      <td class="ma">ma:language</td>
      <td>exact</td>
      <td>Language </td>
      <td>Specifies the language of the track in the Matroska
languages form</td>
      <td>language code</td>
      <td>N/A</td>
    </tr>
    <tr class="ro-even">
      <td class="ma"></td>
      <td>related</td>
      <td>ChapLanguage (from Matroska, undecided support in WebM)</td>
      <td>The languages corresponding to the string, in the
bibliographic ISO-639-2 form</td>
      <td>language code</td>
      <td>N/A</td>
    </tr>
    <tr class="ro-even">
      <td class="ma"></td>
      <td>related</td>
      <td>TagLanguage (from Matroska, undecided support in WebM)</td>
      <td>Specifies the language of the tag specified, in the Matroska
languages form</td>
      <td>language code</td>
      <td>N/A</td>
    </tr>
    <tr class="ro-even">
      <td class="ma">ma:locator</td>
      <td>exact</td>
      <td></td>
      <td>file URI from system</td>
      <td>URI</td>
      <td>N/A</td>
    </tr>

    <tr class="ro-header">
      <td class="col-mawg" colspan="6"><em>Creation</em></td>
    </tr>
    <tr class="ro-even">
      <td class="ma">ma:contributor</td>
      <td>exact</td>
      <td>diverse Tags (from Matroska, undecided support in WebM)</td>
      <td>LEAD_PERFORMER, ACCOMPANIMENT (TPE2 tag in ID3), COMPOSER
(TCOM tag in ID3), ARRANGER, LYRICIST (TEXT tag in ID3), CONDUCTOR
(TPE3 tag in ID3), DIRECTOR (IART tag in RIFF), ASSISTANT_DIRECTOR,
DIRECTOR_OF_PHOTOGRAPHY (ICNM tag in Extended RIFF), SOUND_ENGINEER,
ART_DIRECTOR, PRODUCTION_DESIGNER, CHOREGRAPHER, COSTUME_DESIGNER,
ACTOR, CHARACTER, WRITTEN_BY, SCREENPLAY_BY, EDITED_BY (IEDT tag in
Extended RIFF), PRODUCER (IPRO tag in Extended RIFF), COPRODUCER,
EXECUTIVE_PRODUCER, DISTRIBUTED_BY (IDST tag in Extended RIFF),
MASTERED_BY, ENCODED_BY (TENC tag in ID3), MIXED_BY, REMIXED_BY (TPE4
tag in ID3), PRODUCTION_STUDIO (ISTD tag in Extended RIFF), THANKS_TO,
PUBLISHER (TPUB tag in ID3)</td>
      <td>String</td>
      <td>N/A</td>
    </tr>
    <tr class="ro-even">
      <td class="ma">ma:creator</td>
      <td>exact</td>
      <td>diverse Tags (from Matroska, undecided support in WebM)</td>
      <td>ARTIST (akin to the TPE1 tag in ID3), LABEL (record label)</td>
      <td>String</td>
      <td>N/A</td>
    </tr>
    <tr class="ro-even">
      <td class="ma">ma:createDate</td>
      <td>exact</td>
      <td>DateUTC</td>
      <td>Date of the origin of timecode (value 0), i.e. production date</td>
      <td>Date</td>
      <td>N/A</td>
    </tr>
    <tr class="ro-even">
      <td class="ma"></td>
      <td>related</td>
      <td>diverse Tags (from Matroska, undecided support in WebM)</td>
      <td>DATE_RELEASED (TDRL tag in ID3), DATE_RECORDED (TDRC tag in
ID3), DATE_ENCODED (TDEN tag in ID3), DATE_TAGGED (TDTG tag in ID3),
DATE_DIGITIZED (IDIT tag in RIFF), DATE_WRITTEN, DATE_PURCHASED</td>
      <td>String</td>
      <td>N/A</td>
    </tr>
    <tr class="ro-even">
      <td class="ma">ma:location</td>
      <td>exact</td>
      <td>diverse Tags (from Matroska, undecided support in WebM)</td>
      <td>RECORDING_LOCATION / COMPOSITION_LOCATION (The countries
corresponding to the string, same 2 octets as in Internet domains, or
possibly ISO-3166. This code is followed by a comma, then more
detailed information such as state/province, another comma, and then
city.),  COMPOSER_NATIONALITY (The countries corresponding to the
string, same 2 octets as in Internet domains, or possibly
ISO-3166.)</td>
      <td>String</td>
      <td>N/A</td>
    </tr>

    <tr class="ro-header">
      <td class="col-mawg" colspan="6"><em>Content description</em></td>
    </tr>
    <tr class="ro-even">
      <td class="ma">ma:description</td>
      <td>exact</td>
      <td>Name</td>
      <td>Name field in Tracks Element as a human readable track name</td>
      <td>String</td>
      <td>N/A</td>
    </tr>
    <tr class="ro-even">
      <td class="ma"></td>
      <td>exact</td>
      <td>diverse Tags (from Matroska, undecided support in WebM)</td>
      <td>SUBJECT, DESCRIPTION, SUMMARY, SYNOPSIS, COMMENT</td>
      <td>String</td>
      <td>N/A</td>
    </tr>
    <tr class="ro-even">
      <td class="ma">ma:keyword</td>
      <td>exact</td>
      <td>diverse Tags (from Matroska, undecided support in WebM)</td>
      <td>KEYWORDS (separated by a comma), INITIAL_KEY (initial key
that a musical track starts in), ORIGINAL_MEDIA_TYPE (TMED tag in
ID3), CONTENT_TYPE</td>
      <td>String</td>
      <td>N/A</td>
    </tr>
    <tr class="ro-even">
      <td class="ma">ma:genre</td>
      <td>exact</td>
      <td>diverse Tags (from Matroska, undecided support in WebM)</td>
      <td>GENRE (TCON tag in ID3), MOOD (TMOO tag in ID3)</td>
      <td>String</td>
      <td>N/A</td>
    </tr>
    <tr class="ro-even">
      <td class="ma">ma:rating</td>
      <td>exact</td>
      <td>diverse Tags (from Matroska, undecided support in WebM)</td>
      <td>LAW_RATING (Depending on the country it's the format of the
rating of a movie (P, R, X in the USA, an age in other countries or a
URI defining a logo)), ICRA (content rating for parental control,
previously RSACi), RATING (how much a person likes the song/movie. The
number is between 0 and 5 with decimal values possible (e.g.
2.7))</td>
      <td>String</td>
      <td>N/A</td>
    </tr>

    <tr class="ro-header">
      <td class="col-mawg" colspan="6"><em>Relational</em></td>
    </tr>
    <tr class="ro-even">
      <td class="ma">ma:relation</td>
      <td>exact</td>
      <td>TargetTypeValue (from Matroska, undecided support in WebM)</td>
      <td>SEASON / SEQUEL / EDITION / ISSUE / VOLUME / OPUS, MOVIE /
EPISODE / ALBUM / OPERA / CONCERT, PART / SESSION, CHAPTER / TRACK /
SONG, SUBTRACK / PART / MOVEMENT / SCENE, SHOT</td>
      <td>String</td>
      <td>N/A</td>
    </tr>
    <tr class="ro-even">
      <td class="ma">ma:collection</td>
      <td>exact</td>
      <td>ChapterPhysicalEquiv (from Matroska, undecided support in WebM)</td>
      <td>SET / PACKAGE, CD / 12" / 10" / 7" / TAPE / MINIDISC / DAT /
DVD / VHS / LASERDISC, SIDE, LAYER, SESSION, TRACK, INDEX</td>
      <td>String</td>
      <td>N/A</td>
    </tr>

    <tr class="ro-header">
      <td class="col-mawg" colspan="6"><em>Distribution</em></td>
    </tr>
    <tr class="ro-even">
      <td class="ma">ma:publisher</td>
      <td>exact</td>
      <td>diverse Tags (from Matroska, undecided support in WebM)</td>
      <td>PUBLISHER (TPUB tag in ID3)</td>
      <td>String</td>
      <td>N/A</td>
    </tr>
    <tr class="ro-even">
      <td class="ma">ma:targetAudience</td>
      <td>related</td>
      <td>diverse Tags (from Matroska, undecided support in WebM)</td>
      <td>CONTENT_TYPE (the type of the item. e.g. Documentary,
Feature Film, Cartoon, Music Video, Music, Sound FX, ...), PERIOD (the
period that the piece is from or about)</td>
      <td>String</td>
      <td>N/A</td>
    </tr>

    <tr class="ro-header">
      <td class="col-mawg" colspan="6"><em>Fragments</em></td>
    </tr>
    <tr class="ro-even">
      <td class="ma">ma:fragments</td>
      <td>exact</td>
      <td>Cues</td>
      <td>Seek table provided through the following fields: Cues
(top-level element to speed seeking access), CuePoint (seek point),
CueTime (Absolute timecode according to the segment time base),
CueTrackPositions (positions for different tracks corresponding to the
timecode)</td>
      <td>String</td>
      <td>N/A</td>
    </tr>
      <td class="ma">ma:namedFragments</td>
      <td>exact</td>
      <td>Chapter</td>
      <td>identified by ChapterUID (uint), ChapterTimeStart (start
timecode), ChapterTimeEnd (end timecode), ChapString (chapter name),
ChapLanguage (language used in chapter name)</td>
      <td>String</td>
      <td>N/A</td>
    </tr>

    <tr class="ro-header">
      <td class="col-mawg" colspan="6"><em>Technical Properties</em></td>
    </tr>
    <tr class="ro-even">
      <td class="ma">ma:frameSize</td>
      <td>exact</td>
      <td>DisplayWidth x DisplayHeight (in pixels)</td>
      <td>width: DisplayWidth, height: DisplayHeight; also note the
pixel cropping for HDTV defined by PixelCropBottom, PixelCropTop,
PixelCropLeft, PixelCropRight</td>
      <td>unsigned integer x unsigned integer</td>
      <td>N/A</td>
    </tr>
    <tr class="ro-odd">
      <td class="ma">ma:compression</td>
      <td>exact</td>
      <td>CodecID field</td>
      <td>fixed to "VP8" for video and "Vorbis" for audio</td>
      <td>String constant (V_VP8, A_VORBIS)</td>
      <td>N/A</td>
    </tr>
    <tr class="ro-even">
      <td class="ma">ma:duration</td>
      <td>exact</td>
      <td>Duration</td>
      <td>use TimecodeScale field to identify resolution of Duration
field (Timecode scale in nanoseconds, e.g. 1.000.000 means all
timecodes in the segment are expressed in milliseconds), which
provides segment duration (typically a Matroska file is composed of 1
segment)</td>
      <td>Float</td>
      <td>N/A</td>
    </tr>
    <tr class="ro-odd">
      <td class="ma">ma:format</td>
      <td>exact</td>
      <td>CodecID field</td>
      <td>fixed to "VP8" for video and "Vorbis" for audio</td>
      <td>String constant (V_VP8, A_VORBIS)</td>
      <td>N/A</td>
    </tr>
    <tr class="ro-even">
      <td class="ma">ma:samplingRate</td>
      <td>exact</td>
      <td>SamplingFrequency</td>
      <td>Value of SamplingFrequency field (in Hz)</td>
      <td>float</td>
      <td>N/A</td>
    </tr>
    <tr class="ro-odd">
      <td class="ma">ma:frameRate</td>
      <td>exact</td>
      <td>FrameRate</td>
      <td>Value of FrameRate field (informational only, since frames
are timestamped)</td>
      <td>float</td>
      <td>N/A</td>
    </tr>
    <tr class="ro-even">
      <td class="ma">ma:averageBitRate</td>
      <td>exact</td>
      <td></td>
      <td>calculate as bitrate = length_of_file / duration on system</td>
      <td>float</td>
      <td>N/A</td>
    </tr>
    <tr class="ro-odd">
      <td class="ma">ma:numTracks</td>
      <td>exact</td>
      <td>max TrackNumber</td>
      <td>maximum value on all TrackNumber field values in the Tracks field</td>
      <td>unsigned integer</td>
      <td>N/A</td>
    </tr>
  </tbody>
</table>
Received on Saturday, 6 November 2010 09:42:37 UTC

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