- From: Raphaël Troncy <Raphael.Troncy@cwi.nl>
- Date: Wed, 08 Apr 2009 16:54:53 +0200
- To: Media Fragment <public-media-fragment@w3.org>
All,
The minutes of this week telecon are available for review at
http://www.w3.org/2009/04/08-mediafrag-minutes.html (and in text format
below). Thanks Silvia for the scribing.
There will be no telecon next week (because of the F2F meeting), nor the
week after (because of the WWW conference). Consequently, the next
telecon will be on April 29th, at 12:00 UTC.
New actions are:
* ACTION-58: Silvia to write the introduction
* ACTION-59: Silvia to make the changes to sections 1-5
* ACTION-60: Erik to apply changes to section 6
* ACTION-61: Conrad/Silvia to review 4-way handshake specification in
the wiki
We aim at requesting publication of our WD Tuesday 14th of April the latest.
Cheers!
Erik & Raphael
-------------
[1]W3C
[1] http://www.w3.org/
Media Fragments Working Group Teleconference
08 Apr 2009
[2]Agenda
[2]
http://lists.w3.org/Archives/Public/public-media-fragment/2009Apr/0019.html
See also: [3]IRC log
[3] http://www.w3.org/2009/04/08-mediafrag-irc
Attendees
Present
Silvia, Raphael, Yves, Davy, Erik, Jack
Regrets
Michael, Conrad
Chair
Erik, Raphael
Scribe
Silvia
Contents
* [4]Topics
1. [5]ADMIN
2. [6]Upcoming F2F Meeting in Barcelona:
3. [7]PREPARATION OF WORKING DRAFT
4. [8]action review
5. [9]AOB
* [10]Summary of Action Items
_________________________________________________________
<trackbot> Date: 08 April 2009
<raphael> Scribe: Silvia
<raphael> scribenick: nessy
ADMIN
PROPOSED to accept the minutes of the 01st April 2009 telecon:
[11]http://www.w3.org/2009/04/01-mediafrag-minutes.html
[11] http://www.w3.org/2009/04/01-mediafrag-minutes.html
<raphael> +1
<davy> +1
Upcoming F2F Meeting in Barcelona:
raphael: no teleconf next week but F2F on Thu & Fri
... no teleconf the week after F2F because of WWW conf
... next teleconf is on 29th April
... any objections?
nessy: no objections
raphael: this hour is more convenient for Silvia & Conrad
raphael: we keep this hour
Agenda building
[12]http://www.w3.org/2008/WebVideo/Fragments/wiki/ThirdF2FAgenda
[12] http://www.w3.org/2008/WebVideo/Fragments/wiki/ThirdF2FAgenda
scribe: will assume until 2pm it is reasonable to have Silvia on
phone
... will make proposal to put discussion points into time slots
... a discussion on each section of the WD
nessy: suggestion to have another HTTP 2-way / 4-way discussion to
get Conrad's input
... wants to be present for that
raphael: is planned and will take place in the morning
PREPARATION OF WORKING DRAFT
raphael: go through section per section and distribute actions
... Introduction
nessy: volunteers to write the introduction
<scribe> ACTION: nessy to write introduction [recorded in
[13]http://www.w3.org/2009/04/08-mediafrag-minutes.html#action01]
<trackbot> Sorry, couldn't find user - nessy
<scribe> ACTION: silvia to write introduction [recorded in
[14]http://www.w3.org/2009/04/08-mediafrag-minutes.html#action02]
<trackbot> Created ACTION-58 - Write introduction [on Silvia
Pfeiffer - due 2009-04-15].
raphael: discussion on order of the first three sections
<raphael> Silvia: i need to revisit the framework, side conditions
<raphael> ... re: issue with transcoding
<raphael> ... this should go first
<raphael> ... and then talk about the use cases and scenarios and
ultimately, the dimensions
jackjansen: if requirements move up, we need something that gets
people in the right frame of mind
<raphael> Jack: put the requirements first might break the flow of
the reading
Silvia: most sections are still independent blocks
... we need lead-over text
... introduction will set the stage, requirements set the framework
Jack: maybe move use cases into appendix
raphael: use cases are core to the understanding or our challenges
and provide motivation for the dimensions
... might be interesting to move the "requirements" up - might be
renamed to "side conditions"
Jack: agrees to move up "side conditions"
... requirements are really section 5
raphael: new order is 1, 2, 4, 3, 5
... rename 4 -> side conditions
... rename 5 -> requirements
nessy: agree
Jack: agree
<raphael> +1
<erik> what about typical UC per axis (temporal/spatial/track/named)
to get the reader acquainted with the problems (and special cases to
appendix)?
<scribe> ACTION: silvia to make these changes and other changes to
sections 1-5 [recorded in
[15]http://www.w3.org/2009/04/08-mediafrag-minutes.html#action03]
<trackbot> Created ACTION-59 - Make these changes and other changes
to sections 1-5 [on Silvia Pfeiffer - due 2009-04-15].
raphael will make structural changes to WD directly after the
teleconf
scribe: silvia can then work on it when she has time
erik: there are a lot of use cases and it may be interesting to move
some to appendix
<raphael> Erik: i wonder if the individual use cases should be
ordered differently, following the various dimensions: time, space,
track, name
<raphael> Silvia: I think it is better to group them as they are, by
functionality
erik: they make for fast reading and need to be part of the reading
flow
raphael: what about moving the out-of-scope cases into a separate
section
jack: I like it that the use cases are ordered by usage
... problem is that there are so many and they slow down reading
speed
... 17 different use cases may be too much detail
raphael: original charter had 2 documents - a use cases &
requirements ... and a technology document
... we now have all in one document
... we can later split documents again if it is too much to read
... can discuss at F2F
... should leave it for now
... so we have the current status together in a single document
jack: ok leave it as is
nessy: agree
raphael: section 5
... replace the numbers with req-xx
... and move the table to an appendix
<raphael> Raphael: replace the 1,2,3 in the fitness table by human
readable labels: fit, partial, etc.
jack: instead of having the table 5.5, it makes more sense to list
the types of capabilities containers have
nessy to add a note to the table & running text that we ask people
for input to the table to complete it
<raphael> Silvia: add also an editorial note in the main text to
warn the commnity we need their input to complete this table
nessy: I will add these changes
raphael: section 6
... improved heaps
erik: if we should move stuff to appendix, we can live with that
... table in 6.3 still needs heaps of input
raphael: MPEG-7 has track references
nessy: HTML5 should be removed, since it will do whatever we define
... replace "temporal URI" with "temporal URI/Ogg" to include the
track addressing, to
... "Annodex" would be correct, too, but "temporal URI" is the best
known spec out of this
raphael: should section 6 be moved down in the document, so we can
get specifications first?
erik: I can live with that
raphael: I will move this section down and do all structural changes
on document directly after the meeting before anyone else will edit
again
jack: editorial suggestion - 6.2 is formatted completely different
from 6.1
... formatting of 6.1 is great - could we apply it to 6.2 ?
erik: will make changes
<scribe> ACTION: erik to apply changes to section 6 [recorded in
[16]http://www.w3.org/2009/04/08-mediafrag-minutes.html#action04]
<trackbot> Created ACTION-60 - Apply changes to section 6 [on Erik
Mannens - due 2009-04-15].
raphael: section 7
... in section 7.3 we stop talking about fragments, but talk about
sections or segments
... 7.3 needs an introductory note
jack: I will create an introductory note and explain that it can be
either a fragment or a query
... we need some standard terminology
raphael: do we call it dimensions or axis
general consensus on "dimension
jack: do we prefer "temporal" over "time" - "spatial" over "space" -
"named" over "name"?
... track will stay track
<raphael> +1
jack: all others become "temporal", "spatial", "named"
nessy: +1
jack: I tend to use "clipping" for temporal and "cropping" for
spatial
... is that a good idea or should we just use one?
nessy: "clipping" has a different implication for audio ... maybe
"cutting"?
jack: but we use "audio clip"
nessy: ok, fair enough
jack: 7.4 might need more structure ... but how
... is still very incomplete
... need to continue collecting semantic issues
<raphael> Semantic issue:
[17]http://www.w3.org/2008/WebVideo/Fragments/tracker/issues/3
[17] http://www.w3.org/2008/WebVideo/Fragments/tracker/issues/3
jack: restructure when we have a more complete collection
nessy: suggestion to add a note to the section explaining the need
to contribute more semantic issues
jack: ok, will do
raphael: section 8
... Yves pointed out that 4-way contained errors
Yves: did not understand from temporal URI where the resolution of
time-bytes happens
nessy: I will go back and read that section again and make sure the
4-way is correctly specified
<scribe> ACTION: silvia and conrad to review 4-way handshake
specification [recorded in
[18]http://www.w3.org/2009/04/08-mediafrag-minutes.html#action05]
<trackbot> Created ACTION-61 - And conrad to review 4-way handshake
specification [on Silvia Pfeiffer - due 2009-04-15].
<Yves> and I note that there is still a discussion on the ML ;)
raphael: should reply be 204 in initial handshake for 4-way
handshake
Yves: if you're sending content, then no
jack: that is missing in the specification
nessy: header is being sent in first handshake
jack: in 2-way handshake this may be missing, too - but it's more
complicated
raphael: silvia & conrad - please make changes in wiki ... I will
then sync the wiki with the WD myself
nessy: ok
<raphael> ACTION-55?
<trackbot> ACTION-55 -- Yves Lafon to change the formal grammar to
have 'percent' spelled -- due 2009-04-08 -- OPEN
<trackbot>
[19]http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/55
[19] http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/55
action review
<raphael> close ACTION-55
<trackbot> ACTION-55 Change the formal grammar to have 'percent'
spelled closed
<raphael> ACTION-56?
<trackbot> ACTION-56 -- Yves Lafon to change the formal grammar to
have unreserved characters + %-escaped ones in utf8string and _not_
a set of pchars -- due 2009-04-08 -- OPEN
<trackbot>
[20]http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/56
[20] http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/56
<raphael> close ACTION-56
<trackbot> ACTION-56 Change the formal grammar to have unreserved
characters + %-escaped ones in utf8string and _not_ a set of pchars
closed
close ACTION-55
<trackbot> ACTION-55 Change the formal grammar to have 'percent'
spelled closed
<raphael> Yves: I have just done a small modification in the ABNF
synta
Yves: I added pchar to make it consistent
<raphael> Jack: to move these changes in the WD
<raphael> ACTION-49?
<trackbot> ACTION-49 -- Yves Lafon to draft the HTTP-Range syntax
for different units (completing all the syntax for the two way
handshake) -- due 2009-03-25 -- OPEN
<trackbot>
[21]http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/49
[21] http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/49
still open
<raphael> close ACTION-51
<trackbot> ACTION-51 Summarize the content of the wiki page to put
in the main document, with few examples and a short story closed
erik finalized that
<raphael> ACTION-57?
<trackbot> ACTION-57 -- Jack Jansen to enter formally in the tracker
the ISSUE he has found, regarding a) transcoding and b) spatial
cropping -- due 2009-04-08 -- OPEN
<trackbot>
[22]http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/57
[22] http://www.w3.org/2008/WebVideo/Fragments/tracker/actions/57
<raphael> close ACTION-57
<trackbot> ACTION-57 Enter formally in the tracker the ISSUE he has
found, regarding a) transcoding and b) spatial cropping closed
jack finalized 57
AOB
raphael: we will not publish document tomorrow
... let's aim for publication on Tuesday
... would prefer making the request to publish it before the F2F
because the WWW conference will delay it further otherwise
nessy: +1
raphael: thanks for attending conference and will see you next week
<raphael> will give it a try
<raphael> type: s/Topic: Actions Review/Topic: Actions Review
Summary of Action Items
[NEW] ACTION: erik to apply changes to section 6 [recorded in
[23]http://www.w3.org/2009/04/08-mediafrag-minutes.html#action04]
[NEW] ACTION: nessy to write introduction [recorded in
[24]http://www.w3.org/2009/04/08-mediafrag-minutes.html#action01]
[NEW] ACTION: silvia and conrad to review 4-way handshake
specification [recorded in
[25]http://www.w3.org/2009/04/08-mediafrag-minutes.html#action05]
[NEW] ACTION: silvia to make these changes and other changes to
sections 1-5 [recorded in
[26]http://www.w3.org/2009/04/08-mediafrag-minutes.html#action03]
[NEW] ACTION: silvia to write introduction [recorded in
[27]http://www.w3.org/2009/04/08-mediafrag-minutes.html#action02]
[End of minutes]
--
Raphaël Troncy
CWI (Centre for Mathematics and Computer Science),
Science Park 123, 1098 XG 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 Wednesday, 8 April 2009 14:55:34 UTC