RE: Media Fragments Working Group: Agenda 19 August, Telecon 1200 UTC

Dear all,

I have to send regrets for this phone conf due to an overlapping meeting.

Best regards,


Davy Van Deursen

Ghent University - IBBT
Department of Electronics and Information Systems 
Multimedia Lab

>-----Original Message-----
>From: [mailto:public-media-
>] On Behalf Of RaphaŽl Troncy
>Sent: Tuesday, August 18, 2009 3:56 PM
>Cc: Erik Mannens
>Subject: Media Fragments Working Group: Agenda 19 August, Telecon 1200
>Dear Media Fragmenters,
>Please, find below the agenda for this week telecon
>I suggest to have either Jack or Yves for scribbing.
>I have also cleaned  the tracker, postponing some of the actions as
>discussed during the last telecon. The current summary is at
> It would be great to
>clean the overdue actions.
>As Silvia recently reminded us, our charter expires in Jan 2010, and we
>need to move on quickly to LC and progress at the same time on
>implementations. Targeting short term demo (for the temporal dimension,
>using HTML5) seems to be a very good idea. I suggest we aim at sorting
>out the UA / HTTP communication (ACTION-69) during the next 2 telecon so
>be prepared for discussion.
>Best regards.
>   Erik & RaphaŽl
>AGENDA Teleconference
>W3C Media Fragments Working Group telephone conference 2009-08-19
>Wednesday, 19 August *12:00-13:00 UTC*
>Local time:
>19 August 2009, 1200 UTC
>              0500 (West US)
>              1300 (Galway)
>              1400 (Amsterdam, Sophia-Antipolis, Pretoria)
>              2100 (Tokyo)
>              2200 (Sydney)
>Bridge US: +1-617-761-6200 (Zakim)
>Bridge FR: +
>Bridge UK: +44.117.370.6152
>Conference code : 3724# (spells "FRAG")
>Duration : 60 minutes
>IRC channel          : #mediafrag on
>W3C IRC Web Client   :
>Other clients are listed at
>Zakim information    :
>Zakim bridge monitor :
>Zakim IRC bot        :
>Chair: Raphael
>Scribe: Jack (On Deck: Yves)
>Regrets: Erik
>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 12 August 2009 telecon:
>* Next WG gathering:
>   - 17-18 September: F2F in Amsterdam or Virtual Meeting?
>   - 2-6 November: TPAC week in Santa Clara (CA, USA)
>* ACTION-92: Erik and Raphael to coordinate the writing of papers
>(ongoing ... re-raise around 15/09/09)
>* Use Cases and Requirements WD review:
>   - Media Annotations WG:
>   - TimedText, SVG, HTML5+WHATWG:
> (member only)
>   - TAG: Yves?
>* ACTION-94: Silvia to write specification for streaming use case
>* ACTION-95: Michael to review the new UC written by Silvia and check
>whether it will cover a mobile usage
>3.1 Syntax: (Yves)
>* ACTION-49: Yves to Draft the HTTP-Range syntax for different units
>(completing all the syntax for the two way handshake) (ongoing ...
>re-raise around 30/08/09, after IANA ratification?)
>* ACTION-96: Yves to make change to temporal-optional-comma
>** Done:
>* Discussion: should we allow editUnits for specifying the temporal
>dimension? (see:
>3.2 UA Server HTTP Communication (Conrad/Raphael)
>* ACTION-69: Conrad to draw a representation of the general structure of
>a media resource, for streamable formats
>4. TEST CASES: (Michael)
>* See:
>* Discussion: Jack objects about the lack of coherency between returing
>the full asset for 2 dimensions (track, id), and an error for the 2
>others (time, space)
>* ACTION-93: Michael to revisit the TC and see which are affected by the
>* Michael to add TC0010, TC0011 and TC0012 to the Test Cases page per WG
>5.1 Active:
>* ISSUE-3 [Michael]: Does our MF URI syntax imply that we need to update
>MIME Type registrations?
>** ACTION-89: Yves to find out more about fragment identifier
>registration (ongoing ... re-raise around 15/08/09, after IETF Meeting)
>* ISSUE-6 [Jack]: Temporal clips that require transcoding
>** ACTION-62: Yves to ask the TAG whether transcoding should be
>forbidden or not when we send a fragment of a resource
>** Done:
>(+ thread). How to restart the discussion? Ask Noah to have an item
>during the next call?
>* ISSUE-9 [Michael]: Should we have the media type inside the Test Cases?
>** ACTION-82: Michael to flesh out TC vocabulary re ISSUE-9
>* ISSUE-11 [Silvia]: How the UA knows the full media duration when only
>a fragment is served?
>5.2 Non-Active:
>* ISSUE-4 [Silvia]: Should we pre-define some track names?
>* ISSUE-5 [Jack]: Handling spatial cropping requires information at
>* ISSUE-7 [Michael]: User Agent Media Fragment Resolution and Processing
>* 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
>* ACTION-90: Davy to provide a pointer to Yves to a lib he can use to
>slice media files
>7. AOB
>RaphaŽl Troncy
>CWI (Centre for Mathematics and Computer Science),
>Kruislaan 413, 1098 SJ Amsterdam, The Netherlands
>e-mail: &
>Tel: +31 (0)20 - 592 4093
>Fax: +31 (0)20 - 592 4312

Received on Wednesday, 19 August 2009 06:09:02 UTC