26-mediafrag-minutes.html
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<title>Media Fragments Working Group Teleconference -- 26 Aug
2009</title>
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<h1>Media Fragments Working Group Teleconference</h1>
<h2>26 Aug 2009</h2>
<p><a href=
'http://lists.w3.org/Archives/Public/public-media-fragment/2009Aug/0070.html'>
Agenda</a></p>
<p>See also: <a href=
"http://www.w3.org/2009/08/26-mediafrag-irc">IRC log</a></p>
<h2><a name="attendees" id="attendees">Attendees</a></h2>
<div class="intro">
<dl>
<dt>Present</dt>
<dd>Yves, Michael, Silvia, Davy, Raphael_(partial)</dd>
<dt>Regrets</dt>
<dd>Conrad, Thierry</dd>
<dt>Chair</dt>
<dd>Yves, Raphael</dd>
<dt>Scribe</dt>
<dd>Davy</dd>
</dl>
</div>
<h2>Contents</h2>
<ul>
<li>
<a href="#agenda">Topics</a>
<ol>
<li><a href="#item01">1. ADMIN</a></li>
<li><a href="#item02">2. UC & REQUIREMENTS</a></li>
<li><a href="#item03">TEST CASES</a></li>
<li><a href="#item04">ISSUES</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'><<cite>trackbot</cite>> Date: 26 August
2009</p>
<p class='irc'><<cite>raphael</cite>> Regret+ Erik</p>
<p class='irc'><<cite>raphael</cite>> Regret+: Erik</p>
<p class='irc'><<cite>nessy</cite>> zakim: mute me</p>
<p class='irc'><<cite>raphael</cite>> Scribe: Davy</p>
<p class='irc'><<cite>raphael</cite>> scribenick:
davy</p>
<h3 id="item01">1. ADMIN</h3>
<p class='phone'>accept minutes <a href=
"http://www.w3.org/2009/08/12-mediafrag-minutes.html">http://www.w3.org/2009/08/12-mediafrag-minutes.html</a></p>
<p class='phone'><a href=
"http://www.w3.org/2009/08/19-mediafrag-minutes.html?">http://www.w3.org/2009/08/19-mediafrag-minutes.html?</a></p>
<p class='irc'><<cite>mhausenblas</cite>> +1</p>
<p class='irc'><<cite>raphael</cite>> +1</p>
<p class='phone'>+1</p>
<p class='irc'><<cite>Yves</cite>> +1</p>
<p class='irc'><<cite>silvia</cite>> +1</p>
<p class='phone'>minutes accepted</p>
<p class='phone'><cite>raphael:</cite> next WG gathering</p>
<p class='phone'>physical F2F will not take place</p>
<p class='phone'><cite>scribe:</cite> I suggest a virtual
meeting</p><a name="action01" id="action01"></a>
<p class='irc'><<cite>scribe</cite>>
<strong>ACTION:</strong> raphael to setup a doodle poll
regarding availability for virtual F2F teleconf [recorded in
<a href=
"http://www.w3.org/2009/08/26-mediafrag-minutes.html#action01">http://www.w3.org/2009/08/26-mediafrag-minutes.html#action01</a>]</p>
<p class='irc'><<cite>trackbot</cite>> Sorry, couldn't
find user - raphael</p><a name="action02" id="action02"></a>
<p class='irc'><<cite>scribe</cite>>
<strong>ACTION:</strong> rapha�l to setup a doodle poll
regarding availability for virtual F2F teleconf [recorded in
<a href=
"http://www.w3.org/2009/08/26-mediafrag-minutes.html#action02">http://www.w3.org/2009/08/26-mediafrag-minutes.html#action02</a>]</p>
<p class='irc'><<cite>trackbot</cite>> Sorry, couldn't
find user - rapha�l</p>
<p class='irc'><<cite>raphael</cite>> trackbot,
status</p><a name="action03" id="action03"></a>
<p class='irc'><<cite>scribe</cite>>
<strong>ACTION:</strong> Rapha�l to setup a doodle poll
regarding availability for virtual F2F teleconf [recorded in
<a href=
"http://www.w3.org/2009/08/26-mediafrag-minutes.html#action03">http://www.w3.org/2009/08/26-mediafrag-minutes.html#action03</a>]</p>
<p class='irc'><<cite>trackbot</cite>> Sorry, couldn't
find user - Rapha�l</p>
<p class='irc'><<cite>mhausenblas</cite>> Michael: I know
of <a href="http://tinychat.com/">http://tinychat.com/</a> and
<a href=
"http://www.webex.com/">http://www.webex.com/</a></p><a name=
"action04" id="action04"></a>
<p class='irc'><<cite>scribe</cite>>
<strong>ACTION:</strong> Raphaël to setup a doodle poll
regarding availability for virtual F2F telecon [recorded in
<a href=
"http://www.w3.org/2009/08/26-mediafrag-minutes.html#action04">http://www.w3.org/2009/08/26-mediafrag-minutes.html#action04</a>]</p>
<p class='irc'><<cite>trackbot</cite>> Created ACTION-100
- Setup a doodle poll regarding availability for virtual F2F
telecon [on Raphaël Troncy - due 2009-09-02].</p>
<h3 id="item02">2. UC & REQUIREMENTS</h3>
<p class='phone'>action-95?</p>
<p class='irc'><<cite>trackbot</cite>> ACTION-95 --
Michael Hausenblas to review the new UC written by Silvia and
check whether it will cover a mobile usage -- due 2009-08-19 --
OPEN</p>
<p class='irc'><<cite>trackbot</cite>> <a href=
"http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/95">http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/95</a></p>
<p class='phone'><cite>mhausenblas:</cite> what do others think
about mobile UC?<br />
... we need browser builders, mobile world will be interested
in fragments<br />
... will go through the use cases with my mobile glasses</p>
<p class='phone'><cite>raphael:</cite> regarding aspect
ratio<br />
... if we want to keep this feature, we should have a
motivation for it</p>
<p class='phone'><cite>silvia:</cite> I don't think it has
anything to do with a fragment<br />
... should be removed</p>
<p class='phone'><cite>Yves:</cite> UC is not really targetted
at browsers, example of setop box, where you don't have access
to tools for fitting the video into the screen<br />
... will be more useful for the '?', not for fragments
('#')</p><a name="action05" id="action05"></a>
<p class='phone'><cite>Yves:</cite> more generally, everything that requires transcoding might be available only under the ? scheme but not # (ie: sub-resources and not fragment)</p>
<p class='irc'><<cite>scribe</cite>>
<strong>ACTION:</strong> Yves to write a UC describing the use
of aspect ratio feature [recorded in <a href=
"http://www.w3.org/2009/08/26-mediafrag-minutes.html#action05">http://www.w3.org/2009/08/26-mediafrag-minutes.html#action05</a>]</p>
<p class='irc'><<cite>trackbot</cite>> Created ACTION-101
- Write a UC describing the use of aspect ratio feature [on
Yves Lafon - due 2009-09-02].</p>
<h3 id="item03">TEST CASES</h3>
<p class='irc'><<cite>mhausenblas</cite>> <a href=
"http://www.w3.org/2008/WebVideo/Fragments/wiki/TestCases">http://www.w3.org/2008/WebVideo/Fragments/wiki/TestCases</a></p>
<p class='phone'><cite>mhausenblas:</cite> updated various
TCs<br />
... and added 3 new TCs</p>
<p class='irc'><<cite>mhausenblas</cite>> TC0008</p>
<p class='phone'><cite>Yves:</cite> we should talk with people
from Google</p>
<p class='phone'><cite>silvia:</cite> if there was a standard,
they would have used it<br />
... they will probably adopt our spec</p>
<p class='phone'><cite>Yves:</cite> should we add the
minutes/seconds spec to our spec, even if this will
overlap?</p>
<p class='phone'><cite>silvia:</cite> we could add the youtube
timespec and use it as default</p>
<p class='phone'><cite>Yves:</cite> we should discuss this on
the mailinglist<br />
... regarding Jack's objection (<a href=
"http://lists.w3.org/Archives/Public/public-media-fragment/2009Aug/0013.html)">http://lists.w3.org/Archives/Public/public-media-fragment/2009Aug/0013.html)</a><br />
... time and space is always present in a video, while track or
id will not always be available<br />
... reason for having two kinds of behaviour</p>
<p class='phone'><cite>jackjansen:</cite> don't see the
advantage in returning the whole resource in case of a
non-existing track or id</p>
<p class='irc'><<cite>silvia</cite>> <a href=
"http://www.w3.org/2008/WebVideo/Fragments/wiki/TestCases">http://www.w3.org/2008/WebVideo/Fragments/wiki/TestCases</a></p>
<p class='phone'><cite>jackjansen:</cite> wiki version seems
now right, different from the minutes</p>
<p class='irc'><<cite>silvia</cite>> <a href=
"http://www.w3.org/2009/08/12-mediafrag-minutes.html">http://www.w3.org/2009/08/12-mediafrag-minutes.html</a></p>
<p class='irc'><<cite>mhausenblas</cite>> <a href=
"http://www.w3.org/2009/08/12-mediafrag-minutes.html#item03">http://www.w3.org/2009/08/12-mediafrag-minutes.html#item03</a></p>
<p class='phone'><cite>silvia:</cite> TC0005 should return a
200<br />
... same for TC0006<br />
... I agree with Yves, maybe we should change 'empty
track/named segment' to 'undefined track/named segment'</p>
<p class='phone'><cite>mhausenblas:</cite> we should write a
small introduction with information regarding our
terminology<br />
... 3 cases<br />
... empty, undefined, or non-existent</p>
<p class='phone'><cite>jackjansen:</cite> non-existent can only
be verified by looking at the media</p>
<p class='irc'><<cite>silvia</cite>> (run-time
analysis)</p>
<p class='phone'><cite>jackjansen:</cite> empty and undefined
can be verified by looking at the URI</p>
<p class='irc'><<cite>Yves</cite>> TC for
#xywh=1920,1200,1,1 for a 640x480 picture ?</p>
<p class='phone'><cite>jackjansen:</cite> there is no way to
give an undefined space segment</p>
<p class='phone'><cite>Yves:</cite> because space and time are
always present in a video</p>
<p class='irc'><<cite>Yves</cite>> TC for #t=20,30 for a
10s video</p>
<p class='phone'><cite>jackjansen:</cite> what about partially
existing?<br />
... we should have a TC for that</p>
<p class='phone'><cite>mhausenblas:</cite> two additional
cases: existing and partially existing</p>
<p class='irc'><<cite>Yves</cite>> use the numbers as a
bitmask</p>
<p class='phone'><cite>mhausenblas:</cite> tool support for TC
organization?</p>
<p class='irc'><<cite>mhausenblas</cite>> like <a href=
"http://rdfa.digitalbazaar.com/rdfa-test-harness/">http://rdfa.digitalbazaar.com/rdfa-test-harness/</a></p>
<h3 id="item04">ISSUES</h3>
<p class='phone'>ISSUE-9?</p>
<p class='irc'><<cite>trackbot</cite>> ISSUE-9 -- Should
we have the media type inside the Test Cases? -- OPEN</p>
<p class='irc'><<cite>trackbot</cite>> <a href=
"http://www.w3.org/2008/WebVideo/Fragments/tracker/issues/9">http://www.w3.org/2008/WebVideo/Fragments/tracker/issues/9</a></p>
<p class='phone'><cite>mhausenblas:</cite> if we want to run a
real test harness, we have to know the media type of the media
used</p>
<p class='phone'><cite>silvia:</cite> wait until we have some
reference implementations, then we will see format-specific
issues</p>
<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> raphael to setup
a doodle poll regarding availability for virtual F2F teleconf
[recorded in <a href=
"http://www.w3.org/2009/08/26-mediafrag-minutes.html#action01">http://www.w3.org/2009/08/26-mediafrag-minutes.html#action01</a>]<br />
<strong>[NEW]</strong> <strong>ACTION:</strong> Raphaël to setup
a doodle poll regarding availability for virtual F2F telecon
[recorded in <a href=
"http://www.w3.org/2009/08/26-mediafrag-minutes.html#action04">http://www.w3.org/2009/08/26-mediafrag-minutes.html#action04</a>]<br />
<strong>[NEW]</strong> <strong>ACTION:</strong> rapha�l to setup
a doodle poll regarding availability for virtual F2F teleconf
[recorded in <a href=
"http://www.w3.org/2009/08/26-mediafrag-minutes.html#action02">http://www.w3.org/2009/08/26-mediafrag-minutes.html#action02</a>]<br />
<strong>[NEW]</strong> <strong>ACTION:</strong> Rapha�l to setup
a doodle poll regarding availability for virtual F2F teleconf
[recorded in <a href=
"http://www.w3.org/2009/08/26-mediafrag-minutes.html#action03">http://www.w3.org/2009/08/26-mediafrag-minutes.html#action03</a>]<br />
<strong>[NEW]</strong> <strong>ACTION:</strong> Yves to write a
UC describing the use of aspect ratio feature [recorded in
<a href=
"http://www.w3.org/2009/08/26-mediafrag-minutes.html#action05">http://www.w3.org/2009/08/26-mediafrag-minutes.html#action05</a>]<br />
<br />
[End of minutes]<br />
<hr />
<address>
Minutes formatted by David Booth's <a href=
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$Date: 2009/08/26 15:08:31 $
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