W3C

- DRAFT -

Media Fragments Working Group Teleconference

30 Sep 2009

Agenda

See also: IRC log

Attendees

Present
Raphael, Erik, Michael, Silvia_(irc_only), Thierry, davy, Davy
Regrets
Yves, Jack
Chair
Erik, Raphael
Scribe
Erik

Contents


 

 

<trackbot> Date: 30 September 2009

<raphael> Scribe: Erik

<raphael> Scribenick: erik

1.ADMIN

ADMIN

<raphael> http://www.w3.org/2009/09/23-mediafrag-minutes.html

<mhausenblas> +1

<davy> +1

<raphael> +1

+1

<silvia> +1

minutes from 23/09 accepted

close action-111

<trackbot> ACTION-111 Provide CVS access to conrad closed

UC and Requirements

<raphael> http://www.w3.org/2008/WebVideo/Fragments/WD-media-fragments-reqs/

policy about contributors & editors as of decided in Barcelona F2F

everybody should check his/her affiliation

ACTIONS 105, 106, 113 ongoing by Raphael

<silvia> ACTION 113 has been finished

<trackbot> Sorry, couldn't find user - 113

Raphael suggests section 6 to go to Annex

<raphael> yes silvia, thanks :-)

<mhausenblas> +1

+1

<davy> +1

close action-113

<trackbot> ACTION-113 Move "Side Conditions" section to requirements doc only closed

<silvia> I am not fussed about section 6 staying as section 6 or going into annex - either works

<scribe> ACTION: Davy and Erik to review Raphael's documents [recorded in http://www.w3.org/2009/09/30-mediafrag-minutes.html#action01]

<trackbot> Created ACTION-116 - And Erik to review Raphael's documents [on Davy Van Deursen - due 2009-10-07].

specification

close action-109

<trackbot> ACTION-109 And Davy to write a paragraph in the documents to explain why we don't include this feature in the spec (rationale) based on the group analysis (impact both req and spec documents) closed

<silvia> do we have a commit mailing list on the WDs?

<raphael> what do you mean by commit mailing list?

<silvia> for cvs commits on the WD documents

<silvia> they can be mailed out - it is done on all open source projects that I am active on

<raphael> you mean a change log section ?

<silvia> no, just every "cvs commit" creates an email with the commit message and the diff

<silvia> and it is sent out to the group of people working on the code/document

<silvia> helps heaps to stay updated on changes

<raphael> i'm not sure this is really useful, particularly since some people do just one commit with a lot of changes, and some others, a commit for every characters they change :-)

<raphael> Silvia, any word about action-109?

<silvia> yeah, I finished that, too :)

<raphael> ACTION-110?

<trackbot> ACTION-110 -- Silvia Pfeiffer to silvia to Draft a summary starting from her blog post and the 17/09/2009 IRC minutes in the document (role of ? and #) -- due 2009-09-24 -- OPEN

<trackbot> http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/110

<silvia> I finished that

<silvia> please feel free to review the changes I made

<silvia> raphael: it doesn't matter how many changes are being made - it is really useful - I know it from other projects

close action-110

<trackbot> ACTION-110 Silvia to Draft a summary starting from her blog post and the 17/09/2009 IRC minutes in the document (role of ? and #) closed

<silvia> but if that is not something W3C typically hook into the commit, then it's too hard

<scribe> ACTION: troncy to review Silvia's summary of her blogpost [recorded in http://www.w3.org/2009/09/30-mediafrag-minutes.html#action02]

<trackbot> Created ACTION-117 - Review Silvia's summary of her blogpost [on Raphaël Troncy - due 2009-10-07].

postpone discussion on URI-templates?

<raphael> I will actually review the whole section 3

<conrad> public commit logs tend to encourage people to commit at a useful frequency, ie. not too often or too infrequently

<raphael> We postpone the discussio on: "should we provide one or several URI templates in complement

<raphael> of the BNF syntax provided in the spec for the definition of Media

<raphael> Fragments URI?

rssagent, draft minutes

<raphael> ACTION-112?

<trackbot> ACTION-112 -- Raphaël Troncy to propose a digest of Conrad and current's proposal regarding the use of existing and custom headers for the communication UA server -- due 2009-09-25 -- OPEN

<trackbot> http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/112

<silvia> yes, I worked over the complete section 3, raphael

Raphael will work on Action-112 today as this is a blocking factor for publication

<raphael> my actions are still pending

Test Cases

<mhausenblas> http://www.w3.org/2008/WebVideo/Fragments/WD-media-fragments-spec/#fragment-dimensions

michael is updating test tool

michael's actions are still pending

<scribe> ACTION: michael to come up with individual 'normal' test cases (+/- 20) [recorded in http://www.w3.org/2009/09/30-mediafrag-minutes.html#action03]

<trackbot> Created ACTION-118 - Come up with individual 'normal' test cases (+/- 20) [on Michael Hausenblas - due 2009-10-07].

<mhausenblas> the TC overview could look like http://www.w3.org/2006/07/SWD/RDFa/implementation-report/

raphael wonders how test case doc will look like

michael ... table of test cases automatically generated

raphael ... after publication, implemetors can use this to test their implementation

implementations

<silvia> I would already use it in the html5 pages to make sure I cover all important test cases

davy ... updated MMLab's parser

scribe: can handle all the proposed time schemes
... updated range headers (via two firefox add-ins to test)
... would like to have players that can do that ...

<raphael> Are these 2 add-ons required: https://addons.mozilla.org/en-US/firefox/addon/967 and https://addons.mozilla.org/en-US/firefox/addon/3829? for inspecting headers request and response?

scribe: difficult to use content-range header

<conrad> davy: do you have an updated URL? http://schutz.elis.ugent.be:8080/DownloadServlet/fragf2f.ogg is 404

davy ... these are indeed the add-ons

<silvia> raphael: they are not required, but they help you work out what is going on

<silvia> you can also create the http headers through javascript

<conrad> the problem is that UAs do not understand time Content-Ranges

<silvia> I want to work on this as a demo with davy's server

<silvia> yeah, everything has to be emulated with javascript right now

<conrad> so we need to suggest that UAs display the "start-end/total" values appropriately, eg. in the seek bar

<raphael> Davy points out that the instance-length in the content-range headers is ignored by the media player plugin

<raphael> Conrad: is it something we need to push to the browser vendors ?

<silvia> some of it

davy ... server implementation is allright, we just need players that support these extra headers

<conrad> firefox 3.5 will use X-Content-Duration to display the seek bar

<conrad> value is a floating point number of seconds

<raphael> it is to fake it and will work only on firefox ? but worth to test it

<conrad> sure

within IBBT we will also try to come with a media player that is able to understand all headers

<silvia> the point is that browser vendors need to see the impact and understand the usefulness, which is why a javascript implementation is useful

AOB

<silvia> then they can decide to follow our specifications and implement it natively

<conrad> davy: also try putting the urls through validator.annodex.org , just thinking we can update that for such testing

<raphael> [meeting adjourned]

<silvia> oh cool! early finish! time to go fix some stuff :)

<raphael> yep

Summary of Action Items

[NEW] ACTION: Davy and Erik to review Raphael's documents [recorded in http://www.w3.org/2009/09/30-mediafrag-minutes.html#action01]
[NEW] ACTION: michael to come up with individual 'normal' test cases (+/- 20) [recorded in http://www.w3.org/2009/09/30-mediafrag-minutes.html#action03]
[NEW] ACTION: troncy to review Silvia's summary of her blogpost [recorded in http://www.w3.org/2009/09/30-mediafrag-minutes.html#action02]
 
[End of minutes]

Minutes formatted by David Booth's scribe.perl version 1.135 (CVS log)
$Date: 2009/09/30 09:43:19 $

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This is scribe.perl Revision: 1.135  of Date: 2009/03/02 03:52:20  
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Guessing input format: RRSAgent_Text_Format (score 1.00)

Succeeded: s/2 headers/2 add-ons/
Found Scribe: Erik
Found ScribeNick: erik
Default Present: raphael, mhausenblas, tmichel, erik, conrad
Present: Raphael Erik Michael Silvia_(irc_only) Thierry davy Davy
Regrets: Yves Jack
Agenda: http://lists.w3.org/Archives/Public/public-media-fragment/2009Sep/0151.html
Found Date: 30 Sep 2009
Guessing minutes URL: http://www.w3.org/2009/09/30-mediafrag-minutes.html
People with action items: davy erik michael troncy

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