W3C home > Mailing lists > Public > public-media-fragment@w3.org > February 2009

Re: Minutes of 2009-02-04 telecon

From: Silvia Pfeiffer <silviapfeiffer1@gmail.com>
Date: Wed, 4 Feb 2009 22:43:06 +1100
Message-ID: <2c0e02830902040343u509d275ckfeb0ead627f521e2@mail.gmail.com>
To: Michael Hausenblas <michael.hausenblas@deri.org>
Cc: Media Fragment <public-media-fragment@w3.org>

Sorry I missed the meeting. :(

On the issue of MPEG fragment specifications - you can find them here:
http://www.chiariglione.org/mpeg/technologies/mp21-fid/index.htm.htm .
I don't think they ever added these into the relevant RFCs - seeing as
MPEG specs are standards, too.

Also a little feedback on the TBL suggestion of simply applying the
fragment specification to all video/* mime types:
* it is great to have such a statement from TBL, which sets the strategic focus!
* to be complete, it should also apply to audio/* and to image/* as appropriate
* we need to be careful though with a broad declaration like this: the
issue is not the specification, but the implementation and the support
of all media server software and all media player/browser software
with these fragment specifications
* I think also that we need to approach it carefully, in particular in
cases where mime types have already specified their own fragment
specification; in these cases we should strive to harmonize it through
liaisons before declaring it th one-and-only correct way

Seems to have been a nice and short meeting otherwise - to the point!

Cheers,
Silva.

On Wed, Feb 4, 2009 at 10:04 PM, Michael Hausenblas
<michael.hausenblas@deri.org> wrote:
>
>
> All,
>
> The minutes of today's call are ready for review [1]; below follows a text
> dump.
>
> Cheers,
>      Michael
>
> [1] http://www.w3.org/2009/02/04-mediafrag-minutes.html
>
>
> ==========================================================================
> W3C Media Fragments Working Group Teleconference
>
> 04 Feb 2009
>
>   [2]Agenda
>
>      [2]
> http://lists.w3.org/Archives/Public/public-media-fragment/2009Feb/0009.html
>
>   See also: [3]IRC log
>
>      [3] http://www.w3.org/2009/02/04-mediafrag-irc
>
> Attendees
>
>   Present
>          michael, raphael, davy, thierry, yves, jack, Guillaume
>
>   Regrets
>          Erik
>
>   Chair
>          Raphael
>
>   Scribe
>          mhausenblas
>
> Contents
>
>     * [4]Topics
>         1. [5]ADMIN
>         2. [6]FUTURE PARTICIPANTS
>         3. [7]PREPARATION OF WORKING DRAFT
>         4. [8]ISSUES
>         5. [9]AOB
>     * [10]Summary of Action Items
>     _________________________________________________________
>
>
>
>   <trackbot> Date: 04 February 2009
>
>   <Gui> Gui waves everybody, long time
>
>   <Gui> Dialing now
>
>   <scribe> Scribenick: mhausenblas
>
> ADMIN
>
>   <Gui> brb
>
>   <raphael> +1 for accepting the minutes
>
>   raphael: accept last week's telecon
>
>   +1
>
>   <davy> +1
>
>   minutes accepted
>
>   <scribe> ACTION: michael to review Use Cases and Requirements for
>   Ontology and API for Media Object 1.0 [recorded in
>   [11]http://www.w3.org/2009/01/28-mediafrag-minutes.html#action01]
>
>     [11] http://www.w3.org/2009/01/28-mediafrag-minutes.html#action01
>
>   <trackbot> Created ACTION-39 - Review Use Cases and Requirements for
>   Ontology and API for Media Object 1.0 [recorded in
>   [12]http://www.w3.org/2009/01/28-mediafrag-minutes.html#action01]
>   [on Michael Hausenblas - due 2009-02-11].
>
>     [12] http://www.w3.org/2009/01/28-mediafrag-minutes.html#action01
>
>   <scribe> -- done
>
>   see
>   [13]http://lists.w3.org/Archives/Public/public-media-fragment/2009Ja
>   n/0095.html
>
>     [13]
> http://lists.w3.org/Archives/Public/public-media-fragment/2009Jan/0095.html
>
>   Michael: let's continue the discussion
>
> FUTURE PARTICIPANTS
>
>   Raphael: ACTION-18 (DailyMotion)
>
>   <scribe> -- continues
>
>   Erik: ACTION-21 (Cisco)
>
>   <scribe> -- continues
>
>   Michael: ACTION-20 (Wolfgang)
>
>   <scribe> -- continues
>
> PREPARATION OF WORKING DRAFT
>
>   raphael: will attend the SW co-ordination group and report on our MF
>   work
>   ... will report about the feedback
>
>   ACTION-33: Raphael to start the template of the document
>
>   <trackbot> ACTION-33 Start the template of the document notes added
>
>   <scribe> -- continues
>
>   raphael: will be available today
>
>   every person has a section responsible, please paste from Wiki and
>   polish
>
>   raphael: we use xmlspec
>
>   jackjansen: can we agree on syntax?
>
>   raphael: in a minute
>
>   <Yves> ABNF
>
>   ACTION-27: Yves to propose by email a good list of units that can be
>   used
>
>   <trackbot> ACTION-27 Propose by email a good list of units that can
>   be used notes added
>
>   <scribe> -- done
>
>   raphael: consensus to have px and percentage
>   ... ongoing discussion on having cm, etc.
>   ... jackjansen objects
>
>   jackjansen: had problems on Mac from Windows images having DPI
>   measures
>
>   raphael: conclusion pc and % and give reason why cm, et. will not be
>   supported
>   ... see
>   [14]http://www.w3.org/2008/WebVideo/Fragments/wiki/Syntax#Discussion
>   ... will solicit feedback from the community
>
>     [14] http://www.w3.org/2008/WebVideo/Fragments/wiki/Syntax#Discussion
>
>   Yves: regarding aspect ratio ...
>
>   jackjansen: general aspect ratios might not be useful
>
>   <raphael> Yves: aspect ratio to specify the region one would like to
>   crop, for example write 3:4 or 16:9
>
>   <Gui> Is there an actual section about the aspect ratio issue on the
>   WIki?
>
>   raphael: propose Yves to modify the current phrasing
>
>   <scribe> ACTION: Yves to rephrase
>   [15]http://www.w3.org/2008/WebVideo/Fragments/wiki/Syntax#Dimensions
>   to address the aspect ratio [recorded in
>   [16]http://www.w3.org/2009/02/04-mediafrag-minutes.html#action02]
>
>     [15] http://www.w3.org/2008/WebVideo/Fragments/wiki/Syntax#Dimensions
>
>   <trackbot> Created ACTION-40 - Rephrase
>   [17]http://www.w3.org/2008/WebVideo/Fragments/wiki/Syntax#Dimensions
>   to address the aspect ratio [on Yves Lafon - due 2009-02-11].
>
>     [17] http://www.w3.org/2008/WebVideo/Fragments/wiki/Syntax#Dimensions
>
>   raphael: Conclude syntax discussion ...
>
>   <Gui> So aspect ratio is to help enforcing standard cropping?
>
>   <Yves> that would be the goal
>
>   Michael: usually ABNF
>
>   ahm, yeah ;)
>
>   [18]http://www.ietf.org/rfc/rfc2234.txt
>
>     [18] http://www.ietf.org/rfc/rfc2234.txt
>
>   <Gui> Augmented Backus-Naur Form
>
>   sorry.
>
>   [19]http://www.ietf.org/rfc/rfc4234.txt
>
>     [19] http://www.ietf.org/rfc/rfc4234.txt
>
>   raphael: volunteer to transform into ABNF
>
>   Yves: volunteers to do it
>
>   <scribe> ACTION: Yves to rewrite Syntax in ABNF based on RFC4234
>   [recorded in
>   [20]http://www.w3.org/2009/02/04-mediafrag-minutes.html#action03]
>
>   <trackbot> Created ACTION-41 - Rewrite Syntax in ABNF based on
>   RFC4234 [on Yves Lafon - due 2009-02-11].
>
>   raphael: UC
>   ... went through all reviews
>
>   <Gui> true
>
>   raphael: we need to take actions to implement changes
>
>   Gui: Planned to do, still on the to do list
>
>   raphael: till when?
>
>   Gui: till next meeting
>
>   <scribe> ACTION: Gui to incorporate changes proposed by reviewers
>   till next meeting [recorded in
>   [21]http://www.w3.org/2009/02/04-mediafrag-minutes.html#action04]
>
>   <trackbot> Sorry, couldn't find user - Guillaume (Jean-Louis)
>
>   <raphael> trackbot, status
>
>   raphael: Existing Technologies Survey
>
>   ACTION-24: Erik (through extra info from Felix) to ask Adobe (Larry)
>   more info about xmpMM:Ingredients
>
>   <trackbot> ACTION-24 (through extra info from Felix) to ask Adobe
>   (Larry) more info about xmpMM:Ingredients notes added
>
>   <scribe> -- done
>
>   ACTION-23: Erik (together with Jean-Pierre) to add TV-Anytime also
>   to Existing Technologies Survey
>
>   <trackbot> ACTION-23 (together with Jean-Pierre) to add TV-Anytime
>   also to Existing Technologies Survey notes added
>
>   <scribe> -- continues
>
>   ACTION-16: Erik to go through the email lists to list different
>   solutions used to identify fragments, and populate the wiki
>
>   <trackbot> ACTION-16 Go through the email lists to list different
>   solutions used to identify fragments, and populate the wiki notes
>   added
>
>   <scribe> -- continues
>
>   raphael: HTTP implementation (Raphael)
>
>   ACTION-34: Jack to look at python-url library to see whether he
>   could implement the logic on client side
>
>   <trackbot> ACTION-34 Look at python-url library to see whether he
>   could implement the logic on client side notes added
>
>   <scribe> -- continues
>
>   ACTION-35: Raphael to look at curl and/or wget to see whether the
>   logic could be implemented on client side
>
>   <trackbot> ACTION-35 Look at curl and/or wget to see whether the
>   logic could be implemented on client side notes added
>
>   <scribe> -- continues
>
> ISSUES
>
>   ACTION-37: Raphael to summarize the clip-combining discussion
>
>   <trackbot> ACTION-37 Summarize clip-combining discussion notes added
>
>   <scribe> -- done
>
>   raphael: one comment from Silvia
>
>   <raphael> Discussion: it boils down to whether the media fragment is
>   sees as in-context or out-of-context
>
>   jackjansen: suggest to people to use some method for out of context
>
>   <raphael>
>   [22]http://www.w3.org/2008/WebVideo/Fragments/wiki/Syntax#Discussion
>
>     [22] http://www.w3.org/2008/WebVideo/Fragments/wiki/Syntax#Discussion
>
>   raphael: jackjansen please update on the Wiki
>   [23]http://www.w3.org/2008/WebVideo/Fragments/wiki/Syntax#Discussion
>
>     [23] http://www.w3.org/2008/WebVideo/Fragments/wiki/Syntax#Discussion
>
>   jackjansen: currently doin it .. no need for an action
>
>   close ISSUE-1
>
>   <trackbot> ISSUE-1 Combining Media Fragment URI with other
>   time-clipping methods closed
>
>   ISSUE-3: Does our MF URI syntax imply that we need to update MIME
>   Type registrations?
>
>   <trackbot> ISSUE-3 Does our MF URI syntax imply that we need to
>   update MIME Type registrations? notes added
>
>   see
>   [24]http://lists.w3.org/Archives/Public/public-media-fragment/2009Ja
>   n/0091.html
>
>     [24]
> http://lists.w3.org/Archives/Public/public-media-fragment/2009Jan/0091.html
>
>   <Yves> ISSUE-3?
>
>   <trackbot> ISSUE-3 -- Does our MF URI syntax imply that we need to
>   update MIME Type registrations? -- OPEN
>
>   <trackbot>
>   [25]http://www.w3.org/2008/WebVideo/Fragments/tracker/issues/3
>
>     [25] http://www.w3.org/2008/WebVideo/Fragments/tracker/issues/3
>
>   Michael: see
>   [26]http://www.w3.org/2008/WebVideo/Fragments/wiki/Semantics
>
>     [26] http://www.w3.org/2008/WebVideo/Fragments/wiki/Semantics
>
>   <raphael> TBL Quotes: "I think that it would be good to have a
>   general rule for video/* that there is a common fragment identifier
>   syntax and semantics. I think that the specification should claim
>   all video/*. The W3C specification itself can be a media type
>   specification... I think it can be registered in the registry as the
>   spec for a MIME type."
>
>   <jackjansen> I updated
>   [27]http://www.w3.org/2008/WebVideo/Fragments/wiki/Syntax#Discussion
>
>     [27] http://www.w3.org/2008/WebVideo/Fragments/wiki/Syntax#Discussion
>
>   raphael: will approach TAG officially
>
>   jackjansen: thought MPEG has its own hands on it?
>
>   <scribe> ACTION: Michael to dig deeper into the video/* issue
>   proposed by TimBL [recorded in
>   [28]http://www.w3.org/2009/02/04-mediafrag-minutes.html#action05]
>
>   <trackbot> Created ACTION-42 - Dig deeper into the video/* issue
>   proposed by TimBL [on Michael Hausenblas - due 2009-02-11].
>
>   jackjansen: IANA registry might be a starting point
>
>   davy: not aware of types MPEG has
>
>   raphael: we all have important actions (esp. ME) so let's work on it
>   ... re Hypertext co-ordintation group
>
> AOB
>
>   raphael: part of the domain activity
>   ... next Hypertext co-ordintation group meeting will be about Test
>   Suites
>
>   Michael: will summaries my experiences and issues
>
>   raphael: gathering best practices
>
>   s/[DONE] ACTION: michael to review Use Cases/[DONE] ACTION: michael
>   to review Use Cases
>
>   raphael: thanks and see you next week
>
>   [adjourned]
>
> Summary of Action Items
>
>   [NEW] ACTION: Gui to incorporate changes proposed by reviewers till
>   next meeting [recorded in
>   [29]http://www.w3.org/2009/02/04-mediafrag-minutes.html#action04]
>   [NEW] ACTION: Michael to dig deeper into the video/* issue proposed
>   by TimBL [recorded in
>   [30]http://www.w3.org/2009/02/04-mediafrag-minutes.html#action05]
>   [DONE] ACTION: michael to review Use Cases and Requirements for
>   Ontology and API for Media Object 1.0 [recorded in
>   [31]http://www.w3.org/2009/01/28-mediafrag-minutes.html#action01]
>   [NEW] ACTION: Yves to rephrase
>   [32]http://www.w3.org/2008/WebVideo/Fragments/wiki/Syntax#Dimensions
>   to address the aspect ratio [recorded in
>   [33]http://www.w3.org/2009/02/04-mediafrag-minutes.html#action02]
>   [NEW] ACTION: Yves to rewrite Syntax in ABNF based on RFC4234
>   [recorded in
>   [34]http://www.w3.org/2009/02/04-mediafrag-minutes.html#action03]
>
>     [31] http://www.w3.org/2009/01/28-mediafrag-minutes.html#action01
>     [32] http://www.w3.org/2008/WebVideo/Fragments/wiki/Syntax#Dimensions
>
>   [End of minutes]
> =======================
>
> --
> Dr. Michael Hausenblas
> DERI - Digital Enterprise Research Institute
> National University of Ireland, Lower Dangan,
> Galway, Ireland, Europe
> Tel. +353 91 495730
> http://sw-app.org/about.html
>
>
>
Received on Wednesday, 4 February 2009 11:43:48 GMT

This archive was generated by hypermail 2.2.0+W3C-0.50 : Wednesday, 21 September 2011 12:13:32 GMT