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Media Fragments Working Group: Agenda 09 December, Telecon 1000 UTC

From: RaphaŽl Troncy <Raphael.Troncy@cwi.nl>
Date: Mon, 07 Dec 2009 05:32:08 +0100
Message-ID: <4B1C8548.3050705@cwi.nl>
To: public-media-fragment@w3.org
CC: Erik Mannens <erik.mannens@ugent.be>, Guillaume Olivrin <golivrin@meraka.org.za>
Dear Media Fragmenters,

Please, find below the agenda for this week telecon:
http://www.timeanddate.com/worldclock/fixedtime.html?day=09&month=12&year=2009&hour=10&min=00&sec=0&p1=0 
(for once, sent well in advance!)

Guillaume will be our scribe (Silvia is on deck). Actions opened:
http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/open
I have to send regrets as I will still be talking at ASWC'09 at that time.
Best regards.

   Erik & RaphaŽl

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

AGENDA Teleconference
W3C Media Fragments Working Group telephone conference 2009-12-09
-----------------------------------------------------------------
Wednesday, 09 December *10:00-11:00 UTC*
Local time:
http://www.timeanddate.com/worldclock/fixedtime.html?day=09&month=12&year=2009&hour=10&min=00&sec=0&p1=0

09 December 2009, 1000 UTC
              0200 (West US)
              1000 (Galway)
              1100 (Amsterdam, Sophia-Antipolis, Pretoria)
	     1800 (Shanghai)
              1900 (Tokyo)		*NEW HOUR*
              2100 (Sydney)		*NEW HOUR*
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: Erik
ScribeList: http://www.w3.org/2008/WebVideo/Fragments/wiki/ScribeList
Scribe: Guillaume (On Deck: Sylvia)

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 02 December 2009 telecon:
http://www.w3.org/2009/12/02-mediafrag-minutes.html
* Next F2F Meeting: see 
http://lists.w3.org/Archives/Public/public-media-fragment/2009Dec/0024.html
* ACTION-92: Erik and Raphael to coordinate the writing of papers
(ongoing ... re-raise around 15/01/10)

2. SPECIFICATION:

2.1 Media Fragment URI syntax: (Yves)
* Bug in the npt specification found by Philip:
http://lists.w3.org/Archives/Public/public-media-fragment/2009Nov/0023.html

"I'd also like to point out that the ABNF for NPT does not match
RFC2326. It allows there to be 0 or more digits following the decimal
point, while the MF ABNF allows 1 or more digits."

ACTION to take?

2.2 UA Server HTTP Communication: (Conrad/Raphael)
* ACTION-123: Yves to come up with ABNF for header syntax
* ACTION-124: Silvia to rework section 5 according to Raphael's
restructuration plan
** Discussion: 
http://lists.w3.org/Archives/Public/public-media-fragment/2009Dec/0022.html
* ACTION-125: Michael to revisit his ednote in section 5

2.3 Media Fragment Processing:
* 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

2.4 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. 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

5. 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

6. ISSUES

6.1 Active:
None.

6.2 Non-Active:
* ISSUE-5 [Jack]: Handling spatial cropping requires information at
client-side
* 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

7. 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 Monday, 7 December 2009 04:33:09 GMT

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