- From: Adrian Bateman <adrianba@microsoft.com>
- Date: Tue, 6 Aug 2013 15:55:05 +0000
- To: Paul Cotton <Paul.Cotton@microsoft.com>, "public-html-media@w3.org" <public-html-media@w3.org>
Minutes -> http://www.w3.org/2013/08/06-html-media-minutes.html
- DRAFT -
HTML Media Task Force Teleconference
06 Aug 2013
[2]Agenda
[2] http://lists.w3.org/Archives/Public/public-html-media/2013Aug/0005.html
See also: [3]IRC log
[3] http://www.w3.org/2013/08/06-html-media-irc
Attendees
Present
pladd, glenn, +1.303.661.aaaa, davide, +1.858.357.aabb,
ddorwin, adrianba, johnsim, [Microsoft], Kevin_Kershaw,
pal, niels_thorwirth
Regrets
Chair
glenn
Scribe
Adrian Bateman
Contents
* [4]Topics
1. [5]Roll call, introductions and selection of scribe
2. [6]Previous meeting minutes
3. [7]Review of action items and issues
4. [8]EME status and bugs
5. [9]Bug 20944 - EME should do more to encourage/ensure
CDM-level interop
6. [10]Bug 20965 - EME results in a loss of control over
security and privacy.
7. [11]Bug 20966 - EME design trivializes the demanded
loss of control of security and privacy demanded.
8. [12]Bug 21854 - Define MediaKeySession life cycle
states and/or events
9. [13]Bug 21855 - Avoid network traffic and duplicate
sessions for the same key(s)
10. [14]Bug 17673 - Define Initialization Data for
implementations that choose to support the ISO Base
Media File Format
11. [15]Bug 17750 - Define the behavior MediaKeySession
close() and clearing the keys attribute
12. [16]Bug 18515 - Provide more details on behavior of
the media element when the key for an encrypted block
is not available
13. [17]Bug 21869 - Need clarity on stored keys for CDMs
14. [18]Other bugs for discussion
15. [19]Any other business
16. [20]Adjournment
* [21]Summary of Action Items
__________________________________________________________
<trackbot> Date: 06 August 2013
<ddorwin> I can't talk much today.
<glenn> adrian, are you on the call?
<glenn> scribenick: adrianba
<glenn> agenda:
[22]http://lists.w3.org/Archives/Public/public-html-media/2013A
ug/0005.html
[22] http://lists.w3.org/Archives/Public/public-html-media/2013Aug/0005.html
<scribe> Chair: Glenn Adams
<scribe> Scribe: Adrian Bateman
Roll call, introductions and selection of scribe
Previous meeting minutes
glenn: any comments?
Review of action items and issues
glenn: actions are in the agenda
<glenn> ISSUE-1?
<trackbot> ISSUE-1 -- Consider moving the Clear Key definition
into a separate specification -- raised
<trackbot> [23]http://www.w3.org/html/wg/media/track/issues/1
[23] http://www.w3.org/html/wg/media/track/issues/1
ISSUE-1?
<trackbot> ISSUE-1 -- Consider moving the Clear Key definition
into a separate specification -- raised
<trackbot> [24]http://www.w3.org/html/wg/media/track/issues/1
[24] http://www.w3.org/html/wg/media/track/issues/1
<ddorwin> We usually just note this and move on.
glenn: any comments?
EME status and bugs
glenn: EME draft last updated jul 16
... 15 bugs open
<glenn> [25]http://tinyurl.com/7tfambo
[25] http://tinyurl.com/7tfambo
<glenn>
[26]https://www.w3.org/Bugs/Public/show_bug.cgi?id=20944
[26] https://www.w3.org/Bugs/Public/show_bug.cgi?id=20944
Bug 20944 - EME should do more to encourage/ensure CDM-level interop
glenn: there were a couple of comments since the last meeting
... i proposed a way to resolve this bug
... Robert O'Callahan responded that it wasn't as strong as he
desired
... i responded that he'd have to convince the group of his
proposal
... he's requesting a fairly strong set of information about
CDM
... i'm recommending a voluntary registry in the wiki
adrianba: i'd be okay with the wiki proposal
glenn: does anyone support robert's proposal?
... does anyone think we should keep it open for longer?
<glenn>
[27]https://www.w3.org/Bugs/Public/show_bug.cgi?id=20944#c15
[27] https://www.w3.org/Bugs/Public/show_bug.cgi?id=20944#c15
glenn: can we get an action on the editors to implement the
resolution in comment 15
johnsim: i'm a little unclear about what we're adding to the
spec
... just a link to a wiki?
glenn: not suggesting making it a recommendation - in order to
avoid collisions of key system names you can register here
johnsim: so it would just be a registry of the names?
glenn: there could be a comments field
adrianba: recommend glenn creates the wiki page, maybe with an
example entry, and adds proposed spec text to the bug
<glenn> ACTION: glenn to draft wiki page to register CDM key
system names [recorded in
[28]http://www.w3.org/2013/08/06-html-media-minutes.html#action
01]
<trackbot> Error finding 'glenn'. You can review and register
nicknames at <[29]http://www.w3.org/html/wg/media/track/users>.
[29] http://www.w3.org/html/wg/media/track/users%3E.
<glenn> Action glenn to draft spec language for inclusions as
note to address comment #15 of bug 20944
<trackbot> Error finding 'glenn'. You can review and register
nicknames at <[30]http://www.w3.org/html/wg/media/track/users>.
[30] http://www.w3.org/html/wg/media/track/users%3E.
Bug 20965 - EME results in a loss of control over security and
privacy.
[31]https://www.w3.org/Bugs/Public/show_bug.cgi?id=20965
[31] https://www.w3.org/Bugs/Public/show_bug.cgi?id=20965
glenn: i proposed a section called privacy concerns
... giving an example from webcrypto
<glenn>
[32]https://www.w3.org/Bugs/Public/show_bug.cgi?id=20965#c32
[32] https://www.w3.org/Bugs/Public/show_bug.cgi?id=20965#c32
glenn: any input on this?
<glenn> adrianba: 2 parts to this issue
<glenn> ... specific information: what are privacy
implications?
<glenn> ... does the design support take privacy into account?
<glenn> adrianba: so is api asynch at right time to be able to
ask user for permissions, etc?
<johnsim> my microphone was muted at the time (???)
<glenn> adrianba: we've discussed this in relation to other
topics
<glenn> ... between time session is created and session is
ready, then user could be prompted if user decides not to allow
use of EME
<glenn> ... but haven't exhaustively considered this topic
<glenn> ... henri's comment #9 also talks about storage of data
<glenn> glenn: to adrianba, do you have any recommendations on
how to proceed with this bug?
<glenn> adrianba: prompt more discussion on ML ?
glenn: it seems to me that a better way would be to attempt to
draft some minimal language that could be used to fill in a
section on privacy considerations
... do we have a section in the document on this right now?
... any volunteers to draft this?
... i will go ahead an volunteer to draft language on potential
privacy considerations
<glenn> Action glenn to draft language on potential privacy
considerations
<trackbot> Error finding 'glenn'. You can review and register
nicknames at <[33]http://www.w3.org/html/wg/media/track/users>.
[33] http://www.w3.org/html/wg/media/track/users%3E.
glenn: not an expert on this topic, will probably copy
something from somewhere else and then put it on the list to
solicit comments
... and also note other editorial comments, for example needing
to look at API async
Bug 20966 - EME design trivializes the demanded loss of control of
security and privacy demanded.
[34]https://www.w3.org/Bugs/Public/show_bug.cgi?id=20966
[34] https://www.w3.org/Bugs/Public/show_bug.cgi?id=20966
glenn: in february, adrian asked for more information from the
submitter
... comment 1 had asked for spec text to change
... i propose that we close this issue without prejudice
because there is no information provided
... but it could be opened with new information
... any objection to this?
<ddorwin> Also note that privacy is being discussed/addressed
in bug 20965.
<glenn> RESOLVED: close bug 20966 without prejudice due to lack
of essential information; allow reopening only if substantive
new info is provided;
glenn: any objections to this resolution?
<glenn> Action adrianba to implement closing 20966
<trackbot> Created ACTION-30 - Implement closing 20966 [on
Adrian Bateman - due 2013-08-13].
Bug 21854 - Define MediaKeySession life cycle states and/or events
[35]https://www.w3.org/Bugs/Public/show_bug.cgi?id=21854
[35] https://www.w3.org/Bugs/Public/show_bug.cgi?id=21854
glenn: resolution that adrian would implement solution as
discussed
... any progress?
adrianba: no progress yet - still a little discussion in the
bug
... assume the resolution was without the state attribute
... i wasn't present at the end of the meeting last time
<ddorwin> I don't feel strongly about the state attribute
(certainly not as strongly as I do about addressing the bug
overall).
adrianba: not clear if the state attribute should be a separate
bug or discussed here
<ddorwin> If people have use cases for the state attribute,
that's fine. We could always add it later, though.
glenn: david, is there a way to resolve your comment?
... anyone proposing adding new information?
... then we should go ahead and act on the action and raise any
issues
<glenn>
[36]https://www.w3.org/Bugs/Public/show_bug.cgi?id=21855#c5
[36] https://www.w3.org/Bugs/Public/show_bug.cgi?id=21855#c5
Bug 21855 - Avoid network traffic and duplicate sessions for the same
key(s)
[37]https://www.w3.org/Bugs/Public/show_bug.cgi?id=21855
[37] https://www.w3.org/Bugs/Public/show_bug.cgi?id=21855
glenn: sounds like this needs further thought
... if anyone has thoughts post to the mailing list
ACTION-25?
<trackbot> ACTION-25 -- David Dorwin to and John S to work on
corner cases for bug 17673 -- due 2013-07-19 -- OPEN
<trackbot> [38]http://www.w3.org/html/wg/media/track/actions/25
[38] http://www.w3.org/html/wg/media/track/actions/25
Bug 17673 - Define Initialization Data for implementations that
choose to support the ISO Base Media File Format
[39]https://www.w3.org/Bugs/Public/show_bug.cgi?id=17673
[39] https://www.w3.org/Bugs/Public/show_bug.cgi?id=17673
johnsim: i have not completed this
ACTION-25 due in 1 week
<trackbot> Set ACTION-25 And John S to work on corner cases for
bug 17673 due date to 2013-08-13.
ACTION-27?
<trackbot> ACTION-27 -- Adrian Bateman to add comments to bug
17750 summarising the recent discussion of close -- due
2013-07-09 -- CLOSED
<trackbot> [40]http://www.w3.org/html/wg/media/track/actions/27
[40] http://www.w3.org/html/wg/media/track/actions/27
Bug 17750 - Define the behavior MediaKeySession close() and clearing
the keys attribute
[41]https://www.w3.org/Bugs/Public/show_bug.cgi?id=17750
[41] https://www.w3.org/Bugs/Public/show_bug.cgi?id=17750
glenn: waiting for mark's input - mark's not on the call at the
moment
... joe proposes to keep close but indicate that it is a hint
... joe's not on the call
... sounds like we need to defer until the next meeting
<glenn> ACTION-27 due in 1 week
<trackbot> Set ACTION-27 Add comments to bug 17750 summarising
the recent discussion of close due date to 2013-08-13.
Bug 18515 - Provide more details on behavior of the media element
when the key for an encrypted block is not available
[42]https://www.w3.org/Bugs/Public/show_bug.cgi?id=18515
[42] https://www.w3.org/Bugs/Public/show_bug.cgi?id=18515
glenn: david, do you have input on this?
<glenn>
[43]https://www.w3.org/Bugs/Public/show_bug.cgi?id=18515#c11
[43] https://www.w3.org/Bugs/Public/show_bug.cgi?id=18515#c11
ddorwin: i was just clarifying what i think joe had said
glenn: do we have enough information to make progress?
ddorwin: probably need to propose text and then discuss that
glenn: would you like an action to do that?
ddorwin: i probably won't do it in the next couple of weeks
<glenn> action ddorwin to propose text to resolve bug 18515
<trackbot> Created ACTION-31 - Propose text to resolve bug
18515 [on David Dorwin - due 2013-08-13].
Bug 21869 - Need clarity on stored keys for CDMs
[44]https://www.w3.org/Bugs/Public/show_bug.cgi?id=21869
[44] https://www.w3.org/Bugs/Public/show_bug.cgi?id=21869
glenn: fairly lengthy thread with joe and david
... status?
ddorwin: i replied to the thread - haven't had chance to look
at the reply from this morning
glenn: need to leave this open
Other bugs for discussion
glenn: any others?
Any other business
glenn: hearing none
... Next EME meeting will be on Tue Aug 13.
Adjournment
glenn: thanks everyone
<glenn> trackbot, end meeting
Summary of Action Items
[NEW] ACTION: glenn to draft wiki page to register CDM key
system names [recorded in
[45]http://www.w3.org/2013/08/06-html-media-minutes.html#action
01]
[End of minutes]
______________________
From: Paul Cotton [mailto:Paul.Cotton@microsoft.com]
Sent: Monday, August 5, 2013 2:53 PM
To: public-html-media@w3.org
Subject: {agenda} HTML WG media telecon 2013-08-06 - EME status and bug discussion
The HTML WG media teleconference meeting will occur on 2013-08-06 for up to 60 minutes from 15:00Z to 16:00Z.
http://timeanddate.com/s/2ea8
Tokyo midnight, Amsterdam/Oslo 17:00, London/Dublin 16:00, New Jersey/York 11:00, Kansas City 10:00, Seattle/San Francisco 08:00.
Chair of the meeting: TBD (Paul Cotton is on vacation)
Scribe: TBD
(See the end of this email for dial-in and IRC info.)
== Agenda ==
1. Roll call, introductions and selection of scribe
2. Previous meeting minutes
http://www.w3.org/2013/07/30-html-media-minutes.html
3. Review of action items and issues
https://www.w3.org/html/wg/media/track/
Note: Outstanding actions associated with open bugs are later in the agenda.
a) ISSUE-1: Consider moving the Clear Key definition into a separate specification
https://www.w3.org/html/wg/media/track/issues/1
4. EME status and bugs
a) Encrypted Media Extensions editor's draft
http://dvcs.w3.org/hg/html-media/raw-file/tip/encrypted-media/encrypted-media.html
Last updated on Jul 16
b) Encrypted Media Extensions bugs:
http://tinyurl.com/7tfambo
Status as of Aug 05: 15 bugs
c) Proposed resolutions for certain bugs
http://lists.w3.org/Archives/Public/public-html-media/2013Jul/0022.html
[1] https://www.w3.org/Bugs/Public/show_bug.cgi?id=20944
[2] https://www.w3.org/Bugs/Public/show_bug.cgi?id=20965
[3] https://www.w3.org/Bugs/Public/show_bug.cgi?id=20966
d) Bug 21854 - Define MediaKeySession life cycle states and/or events
https://www.w3.org/Bugs/Public/show_bug.cgi?id=21854#c9
Note: We decided on Jul 30 that Adrian could implement the solution as discussed.
e) Bug 21855 - Avoid network traffic and duplicate sessions for the same key(s)
https://www.w3.org/Bugs/Public/show_bug.cgi?id=21855#c5
Note: Action on this bug is dependent on resolving Bug 21854 (see above). Discussed by not resolved on Jul 30.
f) ACTION-25: And John S to work on corner cases for bug 17673 (David)
https://www.w3.org/html/wg/media/track/actions/25
https://www.w3.org/Bugs/Public/show_bug.cgi?id=17673
Note: On Jul 30 we changed the due date of this action to Aug 06. See:
https://www.w3.org/Bugs/Public/show_bug.cgi?id=17673#c14
g) ACTION-27: Add comments to bug 17750 summarising the recent discussion of close (Adrian)
https://www.w3.org/html/wg/media/track/actions/27
https://www.w3.org/Bugs/Public/show_bug.cgi?id=17750
Note: On Jul 16 several people agreed to review and add comments and we agreed to pick up at the Jul 30 meeting. Awaiting Mark’s input.
h) Bug 18515 - Provide more details on behavior of the media element when the key for an encrypted block is not available
https://www.w3.org/Bugs/Public/show_bug.cgi?id=18515
Note: Joe Steele offered to add new input on Jul 16.
i) Bug 21869 - Need clarity on stored keys for CDMs
https://www.w3.org/Bugs/Public/show_bug.cgi?id=21869#c8
Note: Discussed on Jul 16.
j) Other bugs for discussion
5. EME bugs awaiting input
a) Bug 20966 - EME design trivializes the demanded loss of control of security and privacy demanded
https://www.w3.org/Bugs/Public/show_bug.cgi?id=20966#c7
Note: Added to SOTD but awaiting proposed text.
6. Any other business
7. Chair and Scribe for next meeting.
Note: Next EME meeting will be on Tue Aug 13.
8. Adjournment
== Dial-in and IRC Details ==
Zakim teleconference bridge:
+1.617.761.6200, conference 63342 ("media")
https://www.w3.org/Guide/1998/08/teleconference-calendar#s_5366
Supplementary IRC chat (logged):
#html-media on irc.w3.org port 6665 or port 80
Paul Cotton, Microsoft Canada
17 Eleanor Drive, Ottawa, Ontario K2E 6A3
Tel: (425) 705-9596 Fax: (425) 936-7329
15 bugs found.
ID▼
Assignee
Status
Summary
Changed
21869
adrianba@microsoft.com
NEW
Need clarity on stored keys for CDMs
2013-07-16
21855
adrianba@microsoft.com
ASSI
Avoid network traffic and duplicate sessions for the same key(s)
2013-06-18
21854
adrianba@microsoft.com
NEW
Define MediaKeySession life cycle states and/or events
2013-06-18
21798
adrianba@microsoft.com
NEW
Revisit MediaKeyError codes
2013-04-26
20991
adrianba@microsoft.com
NEW
MediaKeys constructor: make CDM loading asynchronous and fix the load failure algorithm
2013-04-27
20966
adrianba@microsoft.com
REOP
EME design trivializes the demanded loss of control of security and privacy demanded.
2013-02-26
20965
adrianba@microsoft.com
REOP
EME results in a loss of control over security and privacy.
2013-06-07
20944
adrianba@microsoft.com
NEW
EME should do more to encourage/ensure CDM-level interop
2013-06-05
20622
watsonm@netflix.com
ASSI
SessionID may be assigned asynchronously in MediaKeys.createSession
2013-04-27
19809
adrianba@microsoft.com
NEW
Specify which portion of addKey() algorithm to run when updating license for a key
2013-04-27
18515
ddorwin@google.com
ASSI
Provide more details on behavior of the media element when the key for an encrypted block is not available
2013-06-07
17750
ddorwin@google.com
ASSI
Define the behavior MediaKeySession close() and clearing the keys attribute
2013-07-16
17673
adrianba@microsoft.com
REOP
Define Initialization Data for implementations that choose to support the ISO Base Media File Format
Thu 18:47
17660
adrianba@microsoft.com
REOP
need token relative with user identity for a new generateKeyRequest parameter
2012-10-31
17199
watsonm@netflix.com
ASSI
Provide examples for and get feedback on Key Release
2013-07-16
15 bugs found.
Received on Tuesday, 6 August 2013 15:58:50 UTC