- From: Davy Van Deursen <davy.vandeursen@ugent.be>
- Date: Wed, 12 May 2010 12:22:35 +0200
- To: "'Media Fragment'" <public-media-fragment@w3.org>
- Message-ID: <00d701caf1bd$0a94fe50$1fbefaf0$@vandeursen@ugent.be>
Dear all,
the minutes of today’s telecom are at
<http://www.w3.org/2010/05/12-mediafrag-minutes.html>
http://www.w3.org/2010/05/12-mediafrag-minutes.html and in text format
below.
Best regards,
Davy
------------
[1]W3C
[1] http://www.w3.org/
Media Fragments Working Group Teleconference
12 May 2010
[2]Agenda
[2]
http://lists.w3.org/Archives/Public/public-media-fragment/2010May/0020.html
See also: [3]IRC log
[3] http://www.w3.org/2010/05/12-mediafrag-irc
Attendees
Present
Erik, Davy, Raphael, Silvia
Regrets
Michael
Chair
Erik, Raphael
Scribe
Davy
Contents
* [4]Topics
1. [5]1. Admin
2. [6]2. Use Cases and Requirements
3. [7]3. Specification
4. [8]4. AOB?
* [9]Summary of Action Items
_________________________________________________________
<trackbot> Date: 12 May 2010
1. Admin
<raphael> Scribe: Davy
<scribe> scribenick: davy
Raphael: no full attendance at teleconf :-(
<raphael> Previous telecon:
[10]http://www.w3.org/2010/04/14-mediafrag-minutes.html
[10] http://www.w3.org/2010/04/14-mediafrag-minutes.html
Raphael: if people do not like the decisions we take at the
teleconfs, they should discuss this on the mailing list
<raphael> ...
[11]http://www.w3.org/2010/04/28-mediafrag-minutes.html
[11] http://www.w3.org/2010/04/28-mediafrag-minutes.html
<raphael> ...
[12]http://www.w3.org/2010/05/05-mediafrag-minutes.html
[12] http://www.w3.org/2010/05/05-mediafrag-minutes.html
<silvia> +1
+1
<erik> +1
<raphael> +1 for accepting these minutes
RESOLUTION: minutes accepted
<raphael> ACTION-92 ?
<trackbot> ACTION-92 -- Erik Mannens to erik and Raphael to
coordinate the writing of papers -- due 2010-04-28 -- OPEN
<trackbot>
[13]http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/92
[13] http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/92
raphael: some parts of the paper might be a good starting point for
uncomplete sections in the spec
close action-92
<trackbot> ACTION-92 Erik and Raphael to coordinate the writing of
papers closed
raphael: next F2F meeting decision -> postpone it to next week
erik: even if we are just with 4 or 5 people and other people on the
phone, we should have a meeting
RESOLUTION: next F2F meeting will be organized at 15-16 June in
Eurecom
<scribe> ACTION: troncy to provide practical information for the
next F2F [recorded in
[14]http://www.w3.org/2010/05/12-mediafrag-minutes.html#action01]
<trackbot> Created ACTION-162 - Provide practical information for
the next F2F [on Raphaël Troncy - due 2010-05-19].
2. Use Cases and Requirements
<raphael> ACTION-156?
<trackbot> ACTION-156 -- Conrad Parker to add a "bandwidth
conservation use case" -- due 2010-03-16 -- OPEN
<trackbot>
[15]http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/156
[15] http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/156
<raphael> Conrad, could you update us on this ?
<silvia> conrad, are you still there?
3. Specification
discussing the editorship policy of the specification
<raphael> Raphael: curently 2 groups (editors and contributors)
while these roles are not really defined by W3C, not consistently
used depending on the spec
<raphael> ... Suggest that Silvia and Davy jump to the editors
group, they have edited most of the spec
<raphael> ... Suggest to talk with other contributors on the phone
regarding their role in the spec (for example, Yves contributed a
lot of text some months ago)
<raphael> ... I will apply the changes on the spec
<raphael> ACTION-161?
<trackbot> ACTION-161 -- Silvia Pfeiffer to integrate the test cases
into the spec -- due 2010-04-21 -- OPEN
<trackbot>
[16]http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/161
[16] http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/161
Silvia: waiting for a few issues that are still issues
... 1. #t=a,a and a >= 0 (#2)
... is an empty fragment
... if we send it to the server, we get a 416
... question is whether the client should send it to the server or
not, since it can detect there will be an error
raphael: empty fragment -> UA cannot display anything
<raphael> Silvia: we need to have a consistent reaction of media
fragment aware browsers
<raphael> ... for legacy browsers, they will react as for HTML
<raphael> Discussion about the empty fragment such as #t=a,a when
a>=0
<raphael> Silvia: the UA still sends a range request and should get
back an error 416
<raphael> Davy: but the UA knows it is a semantic error, why sending
a request at all ?
<raphael> Silvia: the UA could simply do nothing ... irritating, but
this is happening with HTML
<raphael> ... the fragment is not interpreted ?
<raphael> ... we could just get the header data of the media file,
but stop, not downloading any content !
<raphael> ... for example, a Range Request with an empty fragment
and only "include-setup"
<raphael> ... the server sends the header data of the media resource
<raphael> ... with a 206 Partial Content for the header data
raphael: we could apply this solution for the three cases
<raphael> Similar solution for all non-existent or illegal fragments
<raphael> ... see cases detailed at
[17]http://lists.w3.org/Archives/Public/public-media-fragment/2010Ma
y/0021.html
[17]
http://lists.w3.org/Archives/Public/public-media-fragment/2010May/0021.html
<scribe> ACTION: troncy to send a resolution on handling
non-existing or illegal fragments to the mailinglist [recorded in
[18]http://www.w3.org/2010/05/12-mediafrag-minutes.html#action02]
<trackbot> Created ACTION-163 - Send a resolution on handling
non-existing or illegal fragments to the mailinglist [on Raphaël
Troncy - due 2010-05-19].
close action-161
<trackbot> ACTION-161 Integrate the test cases into the spec closed
<raphael> ACTIOn-154 ?
<trackbot> ACTION-154 -- Yves Lafon to add a section 5.2.4
describing his new optimization -- due 2010-03-16 -- OPEN
<trackbot>
[19]http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/154
[19] http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/154
<raphael> Raphael: we have described this recipe in the paper and we
have the figure
<raphael> Raphael: I have a plugin for firefox, works with ninsuna
with videos already ingested
<raphael> ... will send the version to Davy and Silvia for testing
now
<raphael> ... + a readme :-)
<raphael> Davy: work on making Ninsuna acting as a proxy
<raphael> Raphael: add a parameter in the proxy to specify a proxy
... so get media fragments URI on any MP4 videos on the web
<raphael> RESOLUTION: re-allocate ACTION-154 to Davy
<raphael> ACTION-123?
<trackbot> ACTION-123 -- Yves Lafon to come up with ABNF for header
syntax -- due 2009-12-09 -- OPEN
<trackbot>
[20]http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/123
[20] http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/123
Action-123?
<trackbot> ACTION-123 -- Yves Lafon to come up with ABNF for header
syntax -- due 2009-12-09 -- OPEN
<trackbot>
[21]http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/123
[21] http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/123
<raphael> RESOLUTION: re-allocate ACTION-123 to Silvia
<raphael> Silvia: I think we should go to LC even if all the
features are not resolved
<raphael> ... in order to get more feedback
<raphael> Raphael: agree, f2f meeting mid-June and then LC request
end of June
4. AOB?
[adjourned]
Summary of Action Items
[NEW] ACTION: troncy to provide practical information for the next
F2F [recorded in
[22]http://www.w3.org/2010/05/12-mediafrag-minutes.html#action01]
[NEW] ACTION: troncy to send a resolution on handling non-existing
or illegal fragments to the mailinglist [recorded in
[23]http://www.w3.org/2010/05/12-mediafrag-minutes.html#action02]
[End of minutes]
_________________________________________________________
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Received on Wednesday, 12 May 2010 10:23:06 UTC