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Media Fragments Working Group: Agenda 10 February, Telecon 1000 UTC

From: RaphaŽl Troncy <raphael.troncy@cwi.nl>
Date: Tue, 09 Feb 2010 15:00:31 +0100
Message-ID: <4B716A7F.1010201@cwi.nl>
To: Media Fragment <public-media-fragment@w3.org>
CC: Erik Mannens <erik.mannens@ugent.be>, michael.hausenblas@deri.org, Silvia Pfeiffer <silviapfeiffer1@gmail.com>
Dear Media Fragmenters,

Please, find below the agenda for this week telecon 
http://www.timeanddate.com/worldclock/fixedtime.html?day=10&month=02&year=2010&hour=10&min=00&sec=0&p1=0
Actions opened: 
http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/open

The agenda is lengthy, as usual, but we need to progress on a number of 
important points:
   1) To agree on marking up some parts of the current draft as "ready 
for implementation" --> see Silvia's proposal below
   2) Have extensive discussion on error cases for temporal URIs to 
complete these in the spec (section 5.1.5 has a start), which requires 
Michael's action done. Please, complete them asap.
Best regards.

Erik & RaphaŽl

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

AGENDA Teleconference
W3C Media Fragments Working Group telephone conference 2010-02-10
-----------------------------------------------------------------
Wednesday, 10 February *10:00-11:00 UTC*
Local time:
http://www.timeanddate.com/worldclock/fixedtime.html?day=10&month=02&year=2010&hour=10&min=00&sec=0&p1=0

10 February 2010, 1000 UTC
               0200 (West US)
               1000 (Galway)
               1100 (Amsterdam, Sophia-Antipolis, Pretoria)
               1900 (Tokyo)		
               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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-------------------------------------------------------------------

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

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 03 February 2009 telecon:
http://www.w3.org/2010/02/03-mediafrag-minutes.html
* Charter Extension:
** ACTION-127: Thierry/Yves to look for the charter extension
* ACTION-92: Erik and Raphael to coordinate the writing of papers
** Target is MTAP SI on Semantic Multimedia, 
http://www.samt2009.org/sites/default/files/mtap_cfp_flyer_v1.pdf, Erik 
will circulate a draft version soon.

2. F2F Meeting:
* Draft Agenda: http://www.w3.org/2008/WebVideo/Fragments/wiki/FithF2FAgenda
** Erik: Venue details in the wiki
** Thierry: Zakim booked

3. SPECIFICATION:

* ACTION-134: Erik to mark up the spec with normative and informative 
classes
* Discussion: Marking up the document with "reaonsably stable", 
"mature", "ready for test implementations, etc.
* PROPOSAL from Silvia: "marking some sections as "ready for 
implementation", see 
http://lists.w3.org/Archives/Public/public-media-fragment/2010Feb/0007.html

3.1 Media Fragment URI syntax: (Yves)
* Bug in the npt specification:
Philip: 
http://lists.w3.org/Archives/Public/public-media-fragment/2009Nov/0023.html
Dom: 
http://lists.w3.org/Archives/Public/public-media-fragment/2010Jan/0093.html
* ACTION-126: Yves to follow up on error in ABFN for npt
* ACTION-132: Philip to send to the mailing list a description of a new 
issue to be discussed (dealing with decimal for specifying time?) 	

3.2 Protocol for URI fragment Resolution in HTTP:
* ACTION-123: Yves to come up with ABNF for header syntax
* ACTION-133: Erik to try to generate some time diagram for the protocol 
description in the section 5.2.1.x
* Review of the complete Section 5.2.1 for group approval
* Question of MF URI validity by Philip:
http://lists.w3.org/Archives/Public/public-media-fragment/2009Nov/0023.html
* Suggestion of nasty test cases by Philip:
http://lists.w3.org/Archives/Public/public-media-fragment/2009Dec/0015.html

3.3 Rendering of Media Fragments URI in UA:
* Davy: thoughts about other dimensions (spatial, track)
* ISSUE-5 [Jack]: Handling spatial cropping requires information at
client-side
* ACTION-135: Davy, Erik to extend section 5 regarding spatial and track 
dimension
* ACTION-136: Davy to create a diagram of video timeline to explain 
temporal dimension
* ACTION-137: Jack to check that 5.1.4 is implementable using the protocol

3.4 Discovery of 'Track' and 'Named' fragments:
* ISSUE-4 [Silvia]: Should we pre-define some track names?
* Davy's strawman implementation using ROE:
http://lists.w3.org/Archives/Public/public-media-fragment/2009Nov/0014.html
* Silvia's blog post:
http://blog.gingertech.net/2009/11/25/manifests-exposing-structure-of-a-composite-media-resource/ 

* Jack's proposal to write up that we should distinguish the mechanism 
(ROE, MPEG-21) vs the semantics

3.5 Handling of 'Track' and 'ID':
Conrad's proposal (Fragment header):
http://www.w3.org/2008/WebVideo/Fragments/wiki/Server-parsed_Fragments

4. ISSUES

4.1 Active:
* ACTION-131: Davy to write down a new ISSUE in the tracker regarding 
the problem raised by werner (see also raphael's summary)

4.2 Non-Active:
* ISSUE-6 [Jack]: Temporal clips that require transcoding
* ISSUE-7 [Michael]: User Agent Media Fragment Resolution and Processing
* ISSUE-9 [Michael]: Should we have the media type inside the Test Cases?
* ISSUE-12 [Raphael]: What's the relationship between Images (CSS) 
Sprites and the spatial dimension of the Media Fragments URI scheme?
* ISSUE-13 [Raphael]: Write a IETF draft for proposing how to register 
the fragment scheme for all media types

5. TEST CASES: (Michael)
* Corrib test tool: http://ld2sd.deri.org/corrib/ * ACTION-108: Michael 
to add the missing test cases in corrib
* ACTION-115: Michael to come up with categorization of test cases wrt
empty, undefined, etc
* ACTION-118: Michael to come up with individual 'normal' test cases (+/-20)
* ACTION-119: Yves to request admins to set up a cvs notifications 
mailing list and notifications
* ACTION-129: Michael to move the editorial note 
http://www.w3.org/TR/2009/WD-media-frags-20091217/#processing-overview-errors 
to the TC (wiki)

6. 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
* ACTION-70: Jack to commit in CVS (code directory) his python code 
doing the parsing on client side of the media fragment
* ACTION-71: Michael to investigate whether he could have an 
implementation in Javascript that does the client-side media fragments 
parsing

7. AOB

-- 
RaphaŽl Troncy
EURECOM, Multimedia Communications Department
2229, route des CrÍtes, 06560 Sophia Antipolis, France.
e-mail: raphael.troncy@eurecom.fr & raphael.troncy@gmail.com
Tel: +33 (0)4 - 9300 8242
Fax: +33 (0)4 - 9000 8200
Web: http://www.eurecom.fr/~troncy/
Received on Tuesday, 9 February 2010 14:01:32 GMT

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