IRC log of webtv on 2012-03-29

Timestamps are in UTC.

15:09:01 [RRSAgent]
RRSAgent has joined #webtv
15:09:01 [RRSAgent]
logging to http://www.w3.org/2012/03/29-webtv-irc
15:09:22 [Zakim]
+Mark_Watson
15:09:31 [Clarke]
ABR proposal: http://html5-mediasource-api.googlecode.com/svn/trunk/draft-spec/mediasource-draft-spec.html
15:09:42 [mark]
mark has joined #webtv
15:09:52 [nisc]
nisc has joined #webtv
15:10:48 [davidmays]
zakim, who is noisy
15:10:48 [Zakim]
I don't understand 'who is noisy', davidmays
15:10:56 [kaz]
zakim, who is noisy?
15:11:01 [Mark_Vickers]
It would be good to put the GoToMeeting info on the Logistics page.
15:11:07 [Zakim]
kaz, listening for 10 seconds I heard sound from the following: Clarke (99%)
15:11:55 [kaz]
Present: Glenn, Clarke, Dave, Philipp, Joe, Duncan, Franck, Kevin, Jason, Kazuyuki, Mark_Vickers, Juhani(?), Mark_Watson
15:12:02 [Zakim]
-glenn
15:12:25 [Zakim]
+??P20
15:12:39 [kaz]
zakim, who is noisy?
15:12:49 [Zakim]
kaz, listening for 10 seconds I heard sound from the following: Jason.a (25%), Clarke (21%), joesteele.a (4%)
15:13:26 [glenn]
i will ask at the upcoming HTML WG meeting in an hour
15:14:01 [kaz]
-> http://lists.w3.org/Archives/Public/public-html/2012Mar/thread.html#msg275 HTML public list discussion
15:14:22 [KevinStreeter]
KevinStreeter has joined #webtv
15:14:34 [kaz]
i/i will/topic: Encrypted Media TF of the HTML WG/
15:15:13 [kaz]
agenda: http://www.w3.org/2011/webtv/wiki/MPTF/Agenda_Telco_29th_March_2012
15:15:21 [kaz]
topic: ABR proposal
15:15:55 [franck]
franck has joined #webtv
15:16:07 [kaz]
zakim, who is here?
15:16:07 [Zakim]
On the phone I see Clarke, Dave, Philipp, joesteele.a, joesteele, Duncan, Franck, Kevin, Jason.a, Kazuyuki, Mark.a, ??P18, Mark_Watson, ??P20
15:16:09 [Zakim]
On IRC I see franck, KevinStreeter, nisc, mark, RRSAgent, Mark_Vickers, Juhani, duncanr, davidmays, ph, joesteele, Zakim, kaz, Clarke, glenn, masao, timeless, trackbot
15:16:29 [glenn]
zakim, ??p20 is glenn
15:16:29 [Zakim]
+glenn; got it
15:16:47 [franck]
topic: adaptive bit rate proposal (Media Source extension)
15:17:05 [kaz]
-> http://html5-mediasource-api.googlecode.com/svn/tags/0.4/draft-spec/mediasource-draft-spec.html proposal v0.4
15:17:54 [franck]
mw: discussing segment switching, required to be on SAP
15:18:30 [franck]
yes
15:18:49 [kaz]
i/topic: adaptive/scribenick: franck/
15:19:06 [franck]
Dicussing requirement 3:
15:19:16 [kaz]
s/topic: ABR proposal//
15:19:18 [franck]
Any challenges with trick play?
15:23:22 [kaz]
zakim, mute me
15:23:22 [Zakim]
Kazuyuki should now be muted
15:24:27 [franck]
CS: Req 4: using canPlayType or other means...
15:25:11 [franck]
CS: improvement for interop if canPlayType could provide more info
15:25:55 [kaz]
i|Discussing requirement 3:|-> http://www.w3.org/2011/webtv/wiki/MPTF#Adaptive_Bit-Rate_Control_in_Script_.28model_3.29 ABR Requirements|
15:26:18 [franck]
MW: mimeType provide info on codecs
15:26:31 [franck]
MW: 2nd would be info on container format in use
15:27:09 [franck]
MW: If your player support these both types, should be OK
15:32:43 [franck]
MW: examples on different mp4 boxes organization: should it be exposed?
15:33:26 [franck]
MV: could MPEG-2 TS can be used ?
15:34:36 [franck]
CS: next requirement 5 on no advantage for a method aver another
15:35:04 [franck]
CS: combination of codecs/file formats
15:37:54 [franck]
MW: discussin segment swithcing between Apple HLS and DASH segments
15:38:43 [[ATT]]
[ATT] has joined #webtv
15:38:52 [franck]
s/discussin/discussing
15:39:16 [franck]
s/swithcing/switching
15:39:26 [PaulG]
PaulG has joined #webtv
15:40:28 [franck]
CS: people implementing HLS put the burden on the client, would be good to have feedback from HLS people
15:41:01 [franck]
Action: for Clarke to ping D. Singer on that
15:41:01 [trackbot]
Sorry, couldn't find user - for
15:41:43 [franck]
Req 6: "must work with open source browsers"
15:42:06 [franck]
CS: make sure that open source browser can use this method to do ABR
15:42:08 [Zakim]
+ +1.908.848.aadd
15:42:49 [franck]
CS: if we focus on unencrypted content, try to keep content protection elsewhere, req 6 should be fulfilled ?
15:42:57 [franck]
CS: Mark, any opinion ?
15:43:23 [kaz]
action: Stevens to ping D. Singer on requirement 5
15:43:23 [trackbot]
Created ACTION-97 - Ping D. Singer on requirement 5 [on Clarke Stevens - due 2012-04-05].
15:43:47 [franck]
MW: ask Chrome guys
15:44:58 [franck]
CS: content protection: is there anything that would prevent open source browser to implement ABR with a proprietary decryption part ?
15:45:43 [franck]
MW: need to make sure that jscript will be able to access segment info and timing info
15:46:02 [franck]
MW: ...independently from how it has been encrypted
15:46:52 [franck]
CS: next requirement 7: "ABR media must be useable in HTML5"
15:46:57 [franck]
CS: no specific comment
15:47:24 [franck]
CS: Req 8: (linked to Req4), content must be identifiable
15:48:11 [franck]
MW: HLS/DASH, which profile, or whatever, would be handled by the script, thus does not apply to media source extension
15:48:22 [franck]
CS: should we change wording for this req?
15:48:34 [franck]
CS: ... and review next time
15:48:56 [franck]
CS: Req 9: identifiable parameters
15:49:14 [Zakim]
-Jason.a
15:49:15 [franck]
CS: pass info through mime type and mime parameters: is it sufficient?
15:49:28 [franck]
MW: seems yes
15:49:44 [franck]
CS: Req 10: error reporting
15:49:53 [franck]
CS: need for new errors ?
15:50:05 [franck]
MW: none provided yet
15:50:46 [franck]
CS: any errors needed to communicate back to the media element?
15:51:46 [franck]
MW: talking about browser doing the feztching itself , instead of XHR
15:52:07 [franck]
MW: some interactions there, maybe with errors ?
15:52:40 [franck]
CS: We'll assume it's OK and somebody to speak if not
15:53:20 [Zakim]
+Jason
15:53:25 [franck]
MV: case where splicing ad into the media: ?
15:53:52 [franck]
MW: use another media element to render the ad
15:54:15 [franck]
MV: add this use case as a requirement: how to properly handle this (ad insertion impact on presentation timeline)
15:54:36 [franck]
CS: Please provide text on the wiki
15:54:42 [franck]
MV: OK
15:55:24 [kaz]
s/feztching/fetching/
15:56:10 [franck]
MW: you would need some changes in the API to perform this use case
15:56:26 [franck]
MV: look at it carefully
15:56:53 [franck]
CS: Useful to have best practises ?
15:57:00 [franck]
CS: any additional reqs?
15:58:03 [franck]
CS: open item: document to provide to HTML TF, should be ready in 1-2 calls
15:58:09 [kaz]
zakim, who is noisy?
15:58:21 [Zakim]
kaz, listening for 10 seconds I could not identify any sounds
15:58:24 [kaz]
zakim, who is noisy?
15:58:35 [Zakim]
kaz, listening for 10 seconds I heard sound from the following: Mark.a (29%), Clarke (30%)
16:00:08 [kaz]
zakim, aadd is Paul
16:00:21 [Zakim]
-glenn
16:00:25 [Zakim]
+Paul; got it
16:00:36 [kaz]
Present: Glenn, Clarke, Dave, Philipp, Joe, Duncan, Franck, Kevin, Jason, Kazuyuki, Mark_Vickers, Juhani(?), Mark_Watson, Paul
16:00:43 [Zakim]
-Dave
16:00:45 [Zakim]
-Jason
16:00:47 [Zakim]
-Clarke
16:00:51 [Zakim]
-joesteele.a
16:00:53 [Zakim]
-Kevin
16:00:55 [Zakim]
-Mark_Watson
16:00:57 [Zakim]
-joesteele
16:00:59 [Zakim]
-Duncan
16:01:01 [Zakim]
-Mark.a
16:01:05 [Zakim]
-Franck
16:01:07 [Zakim]
-Philipp
16:01:09 [kaz]
[ adjourned
16:01:09 [Zakim]
-Paul
16:01:13 [Zakim]
-Kazuyuki
16:01:25 [kaz]
s/[ adjourned/[ adjourned ]/
16:01:25 [Clarke]
Thanks Franck
16:01:33 [kaz]
thanks, franck!
16:01:38 [kaz]
rrsagent, make log public
16:01:43 [franck]
bye!
16:01:47 [joesteele]
joesteele has left #webtv
16:01:48 [kaz]
rrsagent, draft minute
16:01:48 [RRSAgent]
I'm logging. I don't understand 'draft minute', kaz. Try /msg RRSAgent help
16:01:54 [kaz]
rrsagent, draft minutes
16:01:54 [RRSAgent]
I have made the request to generate http://www.w3.org/2012/03/29-webtv-minutes.html kaz
16:03:14 [duncanr]
duncanr has left #webtv
16:03:43 [KevinStreeter]
KevinStreeter has left #webtv
16:05:47 [Zakim]
disconnecting the lone participant, ??P18, in UW_WebTVIG()11:00AM
16:05:49 [Zakim]
UW_WebTVIG()11:00AM has ended
16:05:49 [Zakim]
Attendees were glenn, Clarke, Kazuyuki, Kazuyuki.a, Dave, Philipp, joesteele, +44.303.040.aaaa, Franck, Mark_Watson, Mark, +1.858.735.aabb, +1.360.367.aacc, Kevin, Duncan,
16:05:49 [Zakim]
... +1.908.848.aadd, Jason, Paul
18:02:04 [Zakim]
Zakim has left #webtv