15:01:38 <RRSAgent> RRSAgent has joined #webtv
15:01:38 <RRSAgent> logging to http://www.w3.org/2012/05/10-webtv-irc
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15:02:56 <kaz> present: clarke, kaz, bryan, bob
15:02:57 <nisc> this passcode is not valid ? :(
15:03:03 <kaz> zakim, code?
15:03:05 <Zakim> the conference code is 93288 (tel:+1.617.761.6200 sip:zakim@voip.w3.org), kaz
15:03:25 <BobLund> BobLund has joined #webtv
15:03:27 <kaz> zakim, who is here?
15:03:27 <Zakim> On the phone I see no one
15:03:28 <Zakim> On IRC I see BobLund, joesteele, RRSAgent, kstreeter, Zakim, kaz, Clarke, duncanr, nisc, glenn, masao, trackbot, timeless
15:03:45 <kaz> present+ joe, kevin
15:04:20 <acolwell> acolwell has joined #webtv
15:04:20 <kaz> present+ Juhani
15:04:38 <Juhani> Juhani has joined #webtv
15:05:47 <kaz> present+ eric
15:05:54 <eric> eric has joined #webtv
15:06:31 <kaz> present+ john
15:06:55 <nisc> zakim, me is Niklas_Schmücker
15:06:55 <Zakim> sorry, nisc, I do not recognize a party named 'me'
15:07:03 <nisc> zakim, nisc is Niklas_Schmücker
15:07:03 <Zakim> sorry, nisc, I do not recognize a party named 'nisc'
15:07:46 <johnsim> johnsim has joined #webtv
15:08:13 <Clarke> Agenda: http://www.w3.org/2011/webtv/wiki/MPTF/Agenda_Telco_10th_May_2012
15:08:14 <kstreeter> agenda+ face to face last week
15:09:06 <kstreeter> [Bob] Summary of last week:
15:09:25 <kstreeter> aaron presented the media source proposal
15:09:51 <kstreeter> [mark?] presented the encrypted media proposal
15:09:53 <kaz> i/Agenda:/scribenick: kstreeter/
15:10:08 <kstreeter> discussed the formation of a media task force
15:10:19 <kstreeter> it was decided to keep the work in the group
15:10:24 <kaz> s/[Bob]/Bob:/
15:10:52 <kstreeter> discussion on whether to keep the two proposals together
15:11:02 <kaz> i/Summary of last week:/topic: face to face last week/
15:11:16 <nisc> zakim, who is here?
15:11:16 <Zakim> On the phone I see no one
15:11:17 <Zakim> On IRC I see johnsim, eric, Juhani, acolwell, joesteele, RRSAgent, kstreeter, Zakim, kaz, Clarke, duncanr, nisc, glenn, masao, trackbot, timeless
15:12:09 <kaz> zakim, mute me
15:12:09 <Zakim> sorry, kaz, I do not know which phone connection belongs to you
15:12:29 <kaz> zakim, mute Kazuyuki
15:12:29 <Zakim> sorry, kaz, I do not know which phone connection belongs to Kazuyuki
15:12:30 <kstreeter> John: none of the acrimonious comments on the enc media proposal really came up in the f2f
15:13:22 <kstreeter> there is a transition happening between HTML5 and HTML next
15:14:14 <kstreeter> Aaron: there is a sense that the HTML5 ship has sailed, and there is an opp for cooperation moving forwad int eh HTML WG
15:14:39 <kstreeter> s/fowad/forward/
15:15:05 <kaz> s/int eh/in the/
15:16:08 <kstreeter> Aaron: Paul Cotton indicated that he would moderate the calls regarding the media proposals
15:16:34 <kstreeter> John: Google presented a couple of good demos, are these available online?
15:16:47 <kstreeter> Aaron: yes, online will find a link
15:17:27 <kstreeter> topic: WebPerf
15:18:07 <kstreeter> some of the metrics being discussed by webperf could be utilized by the media source elements
15:18:45 <kstreeter> this group should familiarize themselves; we will discuss next week
15:19:00 <kstreeter> topic:bug tracking
15:19:25 <kstreeter> many messages this week, means work is progressing
15:19:48 <kstreeter> bug11492
15:20:56 <kstreeter> no new bugs
15:21:23 <kstreeter> topic: requirements documents
15:21:39 <Clarke> ABR Requirements: http://dvcs.w3.org/hg/webtv/raw-file/tip/mpreq/MPTF-ADB-Requirements.html
15:22:18 <kstreeter> updated the terminology
15:22:39 <kstreeter> group should review the terminology changes as well as the reqs
15:22:57 <kstreeter> added use cases
15:23:32 <kaz> zakim, call kazuyuki-skype
15:23:32 <Zakim> ok, kaz; the call is being made
15:24:05 <kstreeter> reviewing use case 5.1
15:26:39 <kstreeter> the terminology for ABR "media" or ABR "system" is ill-defined, we could clarify this
15:29:02 <kstreeter> reviewing use case 5.2 U2
15:31:02 <kstreeter> Kevin: could add the need to handle trick modes across time discontinuities
15:31:24 <kstreeter> Joe: content protection can also impact trick modes, we should call that out as well
15:32:22 <kstreeter> Aaron: what are the expectations around consistency between different systems?
15:33:22 <kstreeter> 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
15:34:06 <kstreeter> Aaron: some adaptive systems might handle trick modes slightly differently, for example switch to lower bitrate
15:35:04 <kstreeter> Bob: even in non-adaptive there are often differences on how different media handle trick play
15:35:16 <kstreeter> Bob: different user agents will often do trick modes differently to enhance user experience
15:36:58 <kstreeter> Kevin: perhaps we could define this more as a req for the mechanisms to initiate trick plays, rather than the end experience
15:37:32 <kstreeter> Bob: could express this in terms of the media element attributes that manage trick modes
15:38:02 <kstreeter> Bob: this could be more succinct
15:38:18 <kstreeter> reviewing use case 5.3 U3
15:39:01 <giuseppe> giuseppe has joined #webtv
15:39:02 <kstreeter> s/5.3 U3/5.3 U3. Search Adaptive Bit Rate Content
15:39:48 <kstreeter> Aaron: we should use "seek" rather than "search"
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15:43:56 <kaz> Clarke: U5. Continuous Adaptive Bit Rate Content
15:44:06 <kaz> zakim, who is speaking?
15:44:16 <Zakim> kaz, listening for 10 seconds I heard sound from the following: ??P5 (95%), ??P32 (8%)
15:44:52 <kaz> ... time reference?
15:44:57 <kaz> bob: who made that comment?
15:45:07 <kaz> kstreeter: kevin from Adobe
15:45:22 <kaz> bob: we had some discussion before
15:45:34 <kaz> ... are you aware how systems today handle that?
15:45:46 <kaz> ... what should for adaptive streaming?
15:45:54 <kaz> kstreeter: not aware
15:46:27 <kaz> ... I imagine system like Tivo should handle this
15:46:30 <kaz> bob: ok
15:46:37 <nisc> kaz, who is here
15:46:42 <nisc> kaz, who is here?
15:46:46 <nisc> er
15:46:47 <kaz> zakim, who is here?
15:46:47 <Zakim> On the phone I see no one
15:46:48 <Zakim> On IRC I see giuseppe, johnsim, eric, Juhani, acolwell, RRSAgent, Zakim, kaz, Clarke, duncanr, nisc, glenn, masao, trackbot, timeless
15:46:49 <nisc> zakim, who is here?
15:46:49 <Zakim> On the phone I see no one
15:46:51 <Zakim> On IRC I see giuseppe, johnsim, eric, Juhani, acolwell, RRSAgent, Zakim, kaz, Clarke, duncanr, nisc, glenn, masao, trackbot, timeless
15:46:56 <nisc> sorry kaz ;-)
15:47:40 <kaz> bob: granularity of time
15:48:36 <kaz> Clarke: I guess we could leave it in the requirements, and reconsider it later
15:48:47 <kaz> ... any other comments for the UC 5?
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15:48:51 <kaz> (nothing)
15:48:56 <kstreeter> reviewing use case 5.6 U6. Timed Tracks and Adaptive Bit Rate Content
15:50:07 <kstreeter> Clarke: this is related to the time base requirements
15:50:26 <kstreeter> DASH supports this in the MPD
15:51:34 <kstreeter> Bob: this might boil down to that the implementation must support timed text tracks if present
15:52:19 <kstreeter> Aaron: we are going to support inline text tracks
15:53:19 <kstreeter> Kevin: how would this work with external caption file?
15:53:30 <kstreeter> Aaron: yes, you would just use the existing track mechanism
15:54:26 <kstreeter> Aaron: since this is built on existing HTML5, i don't think we need to call this out specifically as a requirement
15:55:05 <kstreeter> Clarke: given the above requirements on timeline, this use case might not be required
15:55:51 <kstreeter> Aaron: this req does allow a time track to be merged into content that did not already have one
15:56:03 <kstreeter> s/time track/timed text track/
15:57:07 <kstreeter> Aaron: even if this is redundant timed text is important it is worth leaving in
15:57:41 <kstreeter> next week we will talk about the enc content doc
15:58:10 <kstreeter> Aaron: link points to old document
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15:58:48 <Clarke> Thanks for scribing, Kevin
15:58:55 <kaz> [ adjourned ]
15:59:02 <kaz> rrsagent, make log public
15:59:08 <kaz> rrsagent, draft minutes
15:59:08 <RRSAgent> I have made the request to generate http://www.w3.org/2012/05/10-webtv-minutes.html kaz
15:59:43 <kaz> Meeting: Media Pipeline Task Force Teleconference
15:59:48 <kaz> Chair: Clarke
15:59:49 <Clarke> Clarke has left #webtv
15:59:50 <kaz> rrsagent, draft minutes
15:59:50 <RRSAgent> I have made the request to generate http://www.w3.org/2012/05/10-webtv-minutes.html kaz
16:01:00 <kaz> present+ ??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
16:01:03 <kaz> rrsagent, draft minutes
16:01:03 <RRSAgent> I have made the request to generate http://www.w3.org/2012/05/10-webtv-minutes.html kaz
16:01:42 <kaz> i/Continuous Adaptive/scribenick: kaz/
16:01:46 <kaz> rrsagent, draft minutes
16:01:46 <RRSAgent> I have made the request to generate http://www.w3.org/2012/05/10-webtv-minutes.html kaz
16:02:21 <kaz> i/reviewing use case 5.6/scribenick: kstreeter/
16:02:24 <kaz> rrsagent, draft minutes
16:02:24 <RRSAgent> I have made the request to generate http://www.w3.org/2012/05/10-webtv-minutes.html kaz
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