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Media Fragments Working Group: Agenda 04 March, Telecon 1000 UTC

From: RaphaŽl Troncy <Raphael.Troncy@cwi.nl>
Date: Wed, 04 Mar 2009 00:37:46 +0100
Message-ID: <49ADBF4A.7010706@cwi.nl>
To: public-media-fragment@w3.org
CC: Erik Mannens <erik.mannens@ugent.be>
Dear Media Fragmenters,

Please, find below the agenda for this week telecon and apologies for
this late announcement. The scribe will be Guillaume (Jack is on deck),
please, make sure you can make it!
Best regards.

   Erik & RaphaŽl

------------

AGENDA Teleconference
W3C Media Fragments Working Group telephone conference 2009-03-04

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Wednesday, 04 March *10:00-11:00 UTC*
Local time:
http://www.timeanddate.com/worldclock/fixedtime.html?day=04&month=03&year=2009&hour=10&min=00&sec=0&p1=0
04 March 2009, 1000 UTC
                   0200 (West US)
                   0500 (East US)
                   1100 (Amsterdam)
                   1200 (Athens)
                   1900 (Seoul)
                   2100 (Sydney)
Bridge US: +1-617-761-6200 (Zakim)
Bridge FR: +33.4.89.06.34.99
Bridge UK: +44.117.370.6152
Conference code : 3724# (spells "FRAG")
Duration : 60 minutes
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IRC channel          : #mediafrag on irc.w3.org:6665
W3C IRC Web Client   : http://www.w3.org/2001/01/cgi-irc
Other clients are listed at http://www.w3.org/Project/IRC/#Client
Zakim information    : http://www.w3.org/2002/01/UsingZakim
Zakim bridge monitor : http://www.w3.org/1998/12/bridge/Zakim.html
Zakim IRC bot        : http://www.w3.org/2001/12/zakim-irc-bot.html
-------------------------------------------------------------------

Chair: Erik, Raphael
ScribeList: http://www.w3.org/2008/WebVideo/Fragments/wiki/ScribeList
Scribe: Guillaume (On Deck: Jack, Yves)
Regrets:

Please note that Media Fragments WG telecons are for attendance by
members and invited experts only.

1. ADMIN:

* Roll call
* PROPOSED to accept the minutes of the 25th February 2009 telecon:
http://www.w3.org/2009/02/25-mediafrag-minutes.html
* 3rd F2F meeting (Barcelona, 16-17 April):
http://lists.w3.org/Archives/Public/public-media-fragment/2009Feb/0046.html
ACTION-44: Yves to take care of zakim bridge for F2F
* Potential 4th F2F meeting (Santa Clara, CA, USA, 2-6 November) @TPAC 
2009. Would we like to have a group meeting there?
Survey: http://www.w3.org/2002/09/wbs/34786/TPAC2009/
Alternatives could be a cheaper mini-multi-group meeting held in MIT 
(Boston) early 2010.
* US Daylight Savings Time (3 weeks earlier than Europe): for IA_MFWG, 
zakim is based on US clocks, would you like to have the telecon one hour 
earlier for the next 3 weeks?

2. PREPARATION OF WORKING DRAFT

2.1 WD Template:
* In place at: 
http://www.w3.org/2008/WebVideo/Fragments/WD-media-fragments-reqs/
* Responsibilities: 
http://lists.w3.org/Archives/Public/public-media-fragment/2009Mar/0002.html

2.2 Syntax:
* Time formats representation: Proposals from Conrad and Jack, 
http://lists.w3.org/Archives/Public/public-media-fragment/2009Feb/0069.html
Summary: RTSP syntax relaxed, i.e. have hours optional in case frames 
are omitted, and have hours mandatory in case frames are present
Yves: can we convey this in the ABNF syntax?
* ABNF grammar for the Media Fragment Syntax, 
http://www.w3.org/2008/WebVideo/Fragments/wiki/Syntax#Formal_Grammar
  . Top level name for the media-fragment production rule (cover 
fragment and query?):
   - Current: mediafragment
   - Silvia: segment, extract, subpart, splice
   - Michael: section, division, cut, region
   - David: portion, segment, slice, section
  . timeunit optional?

2.3 Use Cases & Requirements Discussion: (Silvia)
See:
http://www.w3.org/2008/WebVideo/Fragments/wiki/Use_Cases_%26_Requirements_Draft
* ACTION-43: Guillaume to incorporate changes proposed by reviewers of
the Use Case and Requirements Wiki page
Reviews:
   . Raphael:
http://lists.w3.org/Archives/Public/public-media-fragment/2008Nov/0044.html
   . Jack:
http://lists.w3.org/Archives/Public/public-media-fragment/2008Nov/0053.html
   . Guillaume:
http://lists.w3.org/Archives/Public/public-media-fragment/2008Nov/0076.html
   . Davy:
http://lists.w3.org/Archives/Public/public-media-fragment/2008Dec/0007.html

2.4 Existing Technologies Survey (Erik)
See:
http://www.w3.org/2008/WebVideo/Fragments/wiki/Existing_Technologies_Survey
* ACTION-23: Erik (together with Jean-Pierre) to add TV-Anytime also to
Existing Technologies Survey

2.5 HTTP implementation (Raphael)
See: http://www.w3.org/2008/WebVideo/Fragments/wiki/HTTP_implementation

3. ISSUES
* ISSUE-3: Does our MF URI syntax imply that we need to update MIME Type
registrations?
http://www.w3.org/2008/WebVideo/Fragments/tracker/issues/3
* ACTION-42: Michael to dig deeper into the video/* issue proposed by TimBL
* Some related discussion on the TAG mailing list (started by Michael):
   - Thread http://lists.w3.org/Archives/Public/www-tag/2009Feb/0074.html
   - Thread http://lists.w3.org/Archives/Public/www-tag/2009Feb/0183.html

4. Implementation:
* ACTION-34: Jack to look at python-url library to see whether he could
implement the logic on client side 	
* ACTION-35: Raphael to look at curl and/or wget to see whether the
logic could be implemented on client side

5. AOB

-- 
RaphaŽl Troncy
CWI (Centre for Mathematics and Computer Science),
Kruislaan 413, 1098 SJ Amsterdam, The Netherlands
e-mail: raphael.troncy@cwi.nl & raphael.troncy@gmail.com
Tel: +31 (0)20 - 592 4093
Fax: +31 (0)20 - 592 4312
Web: http://www.cwi.nl/~troncy/
Received on Tuesday, 3 March 2009 23:38:32 GMT

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