See also: IRC log
<nisc> this passcode is not valid ? :(
<inserted> scribenick: kstreeter
Bob: Summary of last week:
aaron presented the media source proposal
[mark?] presented the encrypted media proposal
discussed the formation of a media task force
it was decided to keep the work in the group
discussion on whether to keep the two proposals together
John: none of the acrimonious comments on the enc media proposal really came up in the f2f
there is a transition happening between HTML5 and HTML next
Aaron: there is a sense that the HTML5 ship has sailed, and there is an opp for cooperation moving forwad in the HTML WG
Aaron: Paul Cotton indicated that he would moderate the calls regarding the media proposals
John: Google presented a couple of good demos, are these available online?
Aaron: yes, online will find a link
some of the metrics being discussed by webperf could be utilized by the media source elements
this group should familiarize themselves; we will discuss next week
many messages this week, means work is progressing
no new bugs
<Clarke> ABR Requirements: http://dvcs.w3.org/hg/webtv/raw-file/tip/mpreq/MPTF-ADB-Requirements.html
updated the terminology
group should review the terminology changes as well as the reqs
added use cases
reviewing use case 5.1
the terminology for ABR "media" or ABR "system" is ill-defined, we could clarify this
reviewing use case 5.2 U2
Kevin: could add the need to handle trick modes across time discontinuities
Joe: content protection can also impact trick modes, we should call that out as well
Aaron: what are the expectations around consistency between different systems?
Clarke: the primary thing is that from a user perspective dealing with trick modes in ABR should be similar to that of non-ABR content
Aaron: some adaptive systems might handle trick modes slightly differently, for example switch to lower bitrate
Bob: even in non-adaptive there
are often differences on how different media handle trick
... different user agents will often do trick modes differently to enhance user experience
Kevin: perhaps we could define this more as a req for the mechanisms to initiate trick plays, rather than the end experience
Bob: could express this in terms
of the media element attributes that manage trick modes
... this could be more succinct
reviewing use case 5.3 U3. Search Adaptive Bit Rate Content
Aaron: we should use "seek" rather than "search"
<inserted> scribenick: kaz
Clarke: U5. Continuous Adaptive
Bit Rate Content
... time reference?
bob: who made that comment?
kstreeter: kevin from Adobe
bob: we had some discussion
... are you aware how systems today handle that?
... what should for adaptive streaming?
kstreeter: not aware
... I imagine system like Tivo should handle this
<nisc> kaz, who is here
<nisc> kaz, who is here?
<nisc> sorry kaz ;-)
bob: granularity of time
Clarke: I guess we could leave it
in the requirements, and reconsider it later
... any other comments for the UC 5?
<inserted> scribenick: kstreeter
reviewing use case 5.6 U6. Timed Tracks and Adaptive Bit Rate Content
Clarke: this is related to the time base requirements
DASH supports this in the MPD
Bob: this might boil down to that the implementation must support timed text tracks if present
Aaron: we are going to support inline text tracks
Kevin: how would this work with external caption file?
Aaron: yes, you would just use
the existing track mechanism
... since this is built on existing HTML5, i don't think we need to call this out specifically as a requirement
Clarke: given the above requirements on timeline, this use case might not be required
Aaron: this req does allow a
timed text track to be merged into content that did not already
... even if this is redundant timed text is important it is worth leaving in
next week we will talk about the enc content doc
Aaron: link points to old document
<Clarke> Thanks for scribing, Kevin
<kaz> [ adjourned ]
This is scribe.perl Revision: 1.136 of Date: 2011/05/12 12:01:43 Check for newer version at http://dev.w3.org/cvsweb/~checkout~/2002/scribe/ Guessing input format: RRSAgent_Text_Format (score 1.00) Succeeded: i/Agenda:/scribenick: kstreeter Succeeded: s/[Bob]/Bob:/ Succeeded: i/Summary of last week:/topic: face to face last week FAILED: s/fowad/forward/ Succeeded: s/int eh/in the/ Succeeded: s/5.3 U3/5.3 U3. Search Adaptive Bit Rate Content/ Succeeded: s/time track/timed text track/ Succeeded: i/Continuous Adaptive/scribenick: kaz Succeeded: i/reviewing use case 5.6/scribenick: kstreeter Found ScribeNick: kstreeter Found ScribeNick: kaz Found ScribeNick: kstreeter Inferring Scribes: kstreeter, kaz Scribes: kstreeter, kaz ScribeNicks: kstreeter, kaz Present: clarke kaz bryan bob joe kevin Juhani eric john ??P32 443-030-40xxxx 425-214-xxxx 858-735-xxxx 617-761-xxxx 415-832-xxxx 617-761-xxxx ??P58 206-218-xxxx 425-882-xxxx 617-761-xxxx Agenda: http://www.w3.org/2011/webtv/wiki/MPTF/Agenda_Telco_10th_May_2012 Got date from IRC log name: 10 May 2012 Guessing minutes URL: http://www.w3.org/2012/05/10-webtv-minutes.html People with action items:[End of scribe.perl diagnostic output]