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  <title>Media Fragments Working Group Teleconference -- 29 Sep
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  <h1>Media Fragments Working Group Teleconference</h1>

  <h2>29 Sep 2010</h2>

  <p><a href=
  'http://lists.w3.org/Archives/Public/public-media-fragment/2010Sep/0075.html'>
  Agenda</a></p>

  <p>See also: <a href=
  "http://www.w3.org/2010/09/29-mediafrag-irc">IRC log</a></p>

  <h2><a name="attendees" id="attendees">Attendees</a></h2>

  <div class="intro">
    <dl>
      <dt>Present</dt>

      <dd>Yves, Davy, Raphael</dd>

      <dt>Regrets</dt>

      <dd>Silvia, Erik</dd>

      <dt>Chair</dt>

      <dd>Erik</dd>

      <dt>Scribe</dt>

      <dd>davy</dd>
    </dl>
  </div>

  <h2>Contents</h2>

  <ul>
    <li>
      <a href="#agenda">Topics</a>

      <ol>
        <li><a href="#item01">ADMIN</a></li>

        <li><a href="#item02">MEDIA FRAGMENT EXTENSION:</a></li>

        <li><a href="#item03">PUBLIC COMMENTS</a></li>

        <li><a href="#item04">AOB</a></li>
      </ol>
    </li>

    <li><a href="#ActionSummary">Summary of Action Items</a></li>
  </ul>
  <hr />

  <div class="meeting">
    <p class='phone'></p>

    <p class='phone'></p>

    <p class='irc'>&lt;<cite>trackbot</cite>&gt; Date: 29 September
    2010</p>

    <p class='irc'>&lt;<cite>raphael</cite>&gt; Chair: Raphael</p>

    <h3 id="item01">ADMIN</h3>

    <p class='irc'>&lt;<cite>scribe</cite>&gt; scribenick: davy</p>

    <p class='irc'>&lt;<cite>raphael</cite>&gt; <a href=
    "http://www.w3.org/2010/09/22-mediafrag-minutes.html">http://www.w3.org/2010/09/22-mediafrag-minutes.html</a></p>

    <p class='phone'>PROPOSED to accept the minutes of the 22
    September 2010 telecon:</p>

    <p class='phone'><a href=
    "http://www.w3.org/2010/09/22-mediafrag-minutes.html">http://www.w3.org/2010/09/22-mediafrag-minutes.html</a></p>

    <p class='phone'>+1</p>

    <p class='irc'>&lt;<cite>Yves</cite>&gt; +1</p>

    <p class='irc'>&lt;<cite>raphael</cite>&gt; +1</p>

    <p class='phone'><strong class='resolution'>RESOLUTION: minutes
    accepted</strong></p>

    <p class='irc'>&lt;<cite>raphael</cite>&gt; ACTIOn-183?</p>

    <p class='irc'>&lt;<cite>trackbot</cite>&gt; ACTION-183 --
    Raphaël Troncy to send reminders to all relevant groups -- due
    2010-09-15 -- OPEN</p>

    <p class='irc'>&lt;<cite>trackbot</cite>&gt; <a href=
    "http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/183">
    http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/183</a></p>

    <p class='phone'><cite>raphael:</cite> will finish that
    today</p>

    <p class='irc'>&lt;<cite>raphael</cite>&gt; ACTIOn-185?</p>

    <p class='irc'>&lt;<cite>trackbot</cite>&gt; ACTION-185 -- Yves
    Lafon to book zakim for the 2 days meeting of the group on Mon
    1st and Tue 2nd Nov -- due 2010-09-29 -- OPEN</p>

    <p class='irc'>&lt;<cite>trackbot</cite>&gt; <a href=
    "http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/185">
    http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/185</a></p>

    <p class='phone'><cite>Yves:</cite> pending, will do that right
    now</p>

    <p class='irc'>&lt;<cite>raphael</cite>&gt; TPAC registration:
    <a href=
    "http://www.w3.org/2010/11/TPAC/#Registration">http://www.w3.org/2010/11/TPAC/#Registration</a></p>

    <p class='phone'><a href=
    "http://www.w3.org/2002/09/wbs/35125/TPAC2010reg/registrants#MediaF">
    http://www.w3.org/2002/09/wbs/35125/TPAC2010reg/registrants#MediaF</a></p>

    <p class='irc'>&lt;<cite>raphael</cite>&gt; Registered persons
    for TPAC from the group: <a href=
    "http://www.w3.org/2002/09/wbs/35125/TPAC2010reg/registrants#MediaF">
    http://www.w3.org/2002/09/wbs/35125/TPAC2010reg/registrants#MediaF</a></p><a name="action01"
    id="action01"></a>

    <p class='irc'>&lt;<cite>scribe</cite>&gt;
    <strong>ACTION:</strong> troncy to remind Jack and Michael to
    register asap for TPAC [recorded in <a href=
    "http://www.w3.org/2010/09/29-mediafrag-minutes.html#action01">http://www.w3.org/2010/09/29-mediafrag-minutes.html#action01</a>]</p>

    <p class='irc'>&lt;<cite>trackbot</cite>&gt; Created ACTION-188
    - Remind Jack and Michael to register asap for TPAC [on Raphaël
    Troncy - due 2010-10-06].</p>

    <h3 id="item02">MEDIA FRAGMENT EXTENSION:</h3>

    <p class='phone'>action-186?</p>

    <p class='irc'>&lt;<cite>trackbot</cite>&gt; ACTION-186 --
    Philip Jägenstedt to send his list of test cases to the mailing
    list for understanding how browsers handle %-encodded and
    html-encoded URL -- due 2010-09-29 -- OPEN</p>

    <p class='irc'>&lt;<cite>trackbot</cite>&gt; <a href=
    "http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/186">
    http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/186</a></p>

    <p class='irc'>&lt;<cite>raphael</cite>&gt; <a href=
    "http://lists.w3.org/Archives/Public/public-media-fragment/2010Sep/0057.html">
    http://lists.w3.org/Archives/Public/public-media-fragment/2010Sep/0057.html</a></p>

    <p class='phone'><cite>Yves:</cite> wonder if the same thing
    can be obtained with firebug</p>

    <p class='phone'>close action-186</p>

    <p class='irc'>&lt;<cite>trackbot</cite>&gt; ACTION-186 Send
    his list of test cases to the mailing list for understanding
    how browsers handle %-encodded and html-encoded URL closed</p>

    <p class='phone'>action-187?</p>

    <p class='irc'>&lt;<cite>trackbot</cite>&gt; ACTION-187 --
    Philip Jägenstedt to start a new thread about extensibility of
    the Media Fragments in order to get consensus by next week --
    due 2010-09-29 -- OPEN</p>

    <p class='irc'>&lt;<cite>trackbot</cite>&gt; <a href=
    "http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/187">
    http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/187</a></p>

    <p class='phone'><cite>raphael:</cite> people agreed with
    proposal (2) of Philip</p>

    <p class='phone'><cite>yves:</cite> would like to know the
    opinion of Jack</p>

    <p class='phone'><cite>raphael:</cite> first decide which
    proposal, afterwards decide how it is written in the spec</p>

    <p class='phone'><cite>yves:</cite> just against the fact that
    saying that all key-value pairs are media fragments</p>

    <p class='phone'><cite>raphael:</cite> on condition is that you
    need to have keys that we understand<br />
    ... if this is not the case, it's not a media fragment</p>

    <p class='phone'><cite>yves:</cite> not in favour, but also not
    against this</p>

    <p class='phone'>close action-187</p>

    <p class='irc'>&lt;<cite>trackbot</cite>&gt; ACTION-187 Start a
    new thread about extensibility of the Media Fragments in order
    to get consensus by next week closed</p>

    <p class='phone'><cite>raphael:</cite> philip would like to
    distinguish between validity and parsing</p>

    <p class='phone'><cite>yves:</cite> if we have grammar
    explaining what should be there, and a parsing algorithm,
    that's fine</p>

    <p class='irc'>&lt;<cite>raphael</cite>&gt; Is this grammar
    could be <a href=
    "http://lists.w3.org/Archives/Public/public-media-fragment/2010Aug/0005.html">
    http://lists.w3.org/Archives/Public/public-media-fragment/2010Aug/0005.html</a></p>

    <p class='phone'><cite>yves:</cite> this is not a grammar<br />
    ... it's a general approach to parse key-value pairs</p>

    <p class='phone'><cite>raphael:</cite> the grammar we currently
    have, will be kept of course</p>

    <p class='irc'>&lt;<cite>Yves</cite>&gt; I propose, keep the
    current grammar and add the extension point, _and_ define a
    parsing algorithm for those who need it</p>

    <p class='irc'>&lt;<cite>Yves</cite>&gt; mediasegment =
    namesegment / axissegment</p>

    <p class='irc'>&lt;<cite>Yves</cite>&gt; axissegment = (
    timesegment / spacesegment / tracksegment )</p>

    <p class='irc'>&lt;<cite>Yves</cite>&gt; *( "&amp;" (
    timesegment / spacesegment / tracksegment )</p>

    <p class='irc'>&lt;<cite>Yves</cite>&gt; ;</p>

    <p class='irc'>&lt;<cite>Yves</cite>&gt; =&gt; add
    extensionsegment there</p>

    <p class='phone'><cite>yves:</cite> a mediasegment can't be
    only an extensionsegment</p>

    <p class='irc'>&lt;<cite>raphael</cite>&gt; Yves propose that:
    mediasegment = namesegment / axissegment / extensionsegment +
    prose to state that a media segment cannot be only an extension
    segment</p>

    <p class='phone'><cite>yves:</cite> we have to state that
    extensions should remain compatible with the current spec<br />
    ... e.g., bounding box (through xywh) as fallback for an
    arbitrary shape (through ref)</p>

    <p class='irc'>&lt;<cite>Yves</cite>&gt; extensionsegment =
    extensionname '=' extensionvalue</p>

    <p class='irc'>&lt;<cite>raphael</cite>&gt; extensionsegment =
    extensionprefix '=' extensionparam</p>

    <p class='irc'>&lt;<cite>Yves</cite>&gt; issue is with
    extensions that conflict with already defined axis, like 'ref'
    being impacting the spatial dimension defined by 'xywh'</p>

    <p class='phone'><cite>raphael:</cite> top-level production
    rules of the grammar should be in de document as well, not only
    in the appendix<br />
    ... in section 4.3.5 or 4.1</p><a name="action02" id=
    "action02"></a>

    <p class='irc'>&lt;<cite>scribe</cite>&gt;
    <strong>ACTION:</strong> troncy to put the top-level production
    rules back into the document (in section 4.3.5 or 4.1)
    [recorded in <a href=
    "http://www.w3.org/2010/09/29-mediafrag-minutes.html#action02">http://www.w3.org/2010/09/29-mediafrag-minutes.html#action02</a>]</p>

    <p class='irc'>&lt;<cite>trackbot</cite>&gt; Created ACTION-189
    - Put the top-level production rules back into the document (in
    section 4.3.5 or 4.1) [on Raphaël Troncy - due 2010-10-06].</p>

    <p class='phone'><cite>raphael:</cite> still missing is a
    paragraph how things should be parsed<br />
    ... I will ask Philip regarding this issue</p>

    <p class='phone'>close action-187</p>

    <p class='irc'>&lt;<cite>trackbot</cite>&gt; ACTION-187 Start a
    new thread about extensibility of the Media Fragments in order
    to get consensus by next week closed</p>

    <p class='phone'>action-173?</p>

    <p class='irc'>&lt;<cite>trackbot</cite>&gt; ACTION-173 -- Yves
    Lafon to produce the code that will check the grammar of both
    the URI syntax and the Headers syntax -- due 2010-06-22 --
    OPEN</p>

    <p class='irc'>&lt;<cite>trackbot</cite>&gt; <a href=
    "http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/173">
    http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/173</a></p>

    <p class='phone'><cite>yves:</cite> not done yet for the header
    syntax</p>

    <h3 id="item03">PUBLIC COMMENTS</h3>

    <p class='irc'>&lt;<cite>raphael</cite>&gt; ACTION-184?</p>

    <p class='irc'>&lt;<cite>trackbot</cite>&gt; ACTION-184 -- Yves
    Lafon to email Chris the reply on when to send the range header
    -- due 2010-09-15 -- OPEN</p>

    <p class='irc'>&lt;<cite>trackbot</cite>&gt; <a href=
    "http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/184">
    http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/184</a></p>

    <p class='phone'>close action-184</p>

    <p class='irc'>&lt;<cite>trackbot</cite>&gt; ACTION-184 Email
    Chris the reply on when to send the range header closed</p>

    <p class='phone'><cite>raphael:</cite> should we use the bug
    tracker for LC comments?</p>

    <p class='phone'><cite>yves:</cite> a manual approach should be
    feasible (e.g., manually building an HTML table)</p>

    <p class='phone'><cite>raphael:</cite> suggest to start with
    manual approach, when a lot of comments are coming, we might
    consider using the bug tracker</p>

    <p class='irc'>&lt;<cite>raphael</cite>&gt; ACTION-167?</p>

    <p class='irc'>&lt;<cite>trackbot</cite>&gt; ACTION-167 -- Erik
    Mannens to find licence free movies for the automatic test
    suite ... starting with Elephant Dreams and the creative
    commons -- due 2010-06-02 -- OPEN</p>

    <p class='irc'>&lt;<cite>trackbot</cite>&gt; <a href=
    "http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/167">
    http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/167</a></p>

    <h3 id="item04">AOB</h3>

    <p class='phone'>[adjourned]</p>
  </div>

  <h2><a name="ActionSummary" id="ActionSummary">Summary of Action
  Items</a></h2><!-- Action Items -->
  <strong>[NEW]</strong> <strong>ACTION:</strong> troncy to put the
  top-level production rules back into the document (in section
  4.3.5 or 4.1) [recorded in <a href=
  "http://www.w3.org/2010/09/29-mediafrag-minutes.html#action02">http://www.w3.org/2010/09/29-mediafrag-minutes.html#action02</a>]<br />

  <strong>[NEW]</strong> <strong>ACTION:</strong> troncy to remind
  Jack and Michael to register asap for TPAC [recorded in <a href=
  "http://www.w3.org/2010/09/29-mediafrag-minutes.html#action01">http://www.w3.org/2010/09/29-mediafrag-minutes.html#action01</a>]<br />

  &nbsp;<br />
  [End of minutes]<br />
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