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{agenda} HTML WG media telecon 2015-07-14 - MSE bug status and MSE CR test suite

From: Paul Cotton <Paul.Cotton@microsoft.com>
Date: Mon, 13 Jul 2015 16:56:20 +0000
To: "public-html-media@w3.org" <public-html-media@w3.org>
Message-ID: <CY1PR0301MB119628F1C4AD66CD9C1DFD52EA9C0@CY1PR0301MB1196.namprd03.prod.outlook.com>
NOTE: This meeting will use the Webex phone facility!!!
https://www.w3.org/wiki/HTML/Media_Task_Force/Call

The HTML WG media teleconference meeting will occur on 2015-07-14 for up to 60 minutes from 15:00Z to 16:00Z.

http://timeanddate.com/s/2urp

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: Paul Cotton
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
Jun 30:
http://www.w3.org/2015/06/30-html-media-minutes.html
Jun 16:
http://www.w3.org/2015/06/16-html-media-minutes.html
June 2:
http://www.w3.org/2015/06/02-html-media-minutes.html
May 19 minutes: 
http://www.w3.org/2015/05/19-html-media-minutes.html
May 12 minutes:
http://www.w3.org/2015/05/12-html-media-minutes.html
May 5 minutes:
http://www.w3.org/2015/05/05-html-media-minutes.html
F2F minutes:
http://www.w3.org/2015/04/15-html-media-minutes.html
http://www.w3.org/2015/04/16-html-media-minutes.html
F2F web page and agenda
https://www.w3.org/wiki/HTML/wg/2015-04-Agenda

3. MSE test suite status

a) Jun 29 test results including Safari results
http://w3c.github.io/test-results/media-source/all.html 

b) Many of the *Track interface pieces are yet to be implemented
https://lists.w3.org/Archives/Public/public-html-media/2015Jul/0015.html 

4. New MSE bugs and issues

a) Bug 28877 - [MSE] Ambiguous behaviour when running the range removal algorithm
https://www.w3.org/Bugs/Public/show_bug.cgi?id=28877

b) Bug 28881 - [MSE] Period instead of comma
https://www.w3.org/Bugs/Public/show_bug.cgi?id=28881

c) Bug 28882 - [MSE] Space before period
https://www.w3.org/Bugs/Public/show_bug.cgi?id=28882

d) ISSUE-5 - Seekable differs from non-MSE behavior
https://github.com/w3c/media-source/issues/5

5. MSE bugs recently discussed on Jun 30

a) Bug 28822 - [MSE] Spec is ambiguous as to event behavior of an explicit MediaSource duration of +Infinity
https://www.w3.org/Bugs/Public/show_bug.cgi?id=28822
Status from Jun 30: Matt will respond to this bug, resolve it WONTFIX since Infinity is a known value (it means unbounded). The only unknow value is NaN which is the initial value.

b) Bug 28857 - [MSE] Support attachment (and inspection) of MediaSource to HTMLMediaElement via HTMLMediaElement.srcObject
https://www.w3.org/Bugs/Public/show_bug.cgi?id=28857
Status from Jun 30: Matt will update as RESOLVED LATER and we can in the future collect together additional features for a new version of MSE

6. Range removal bugs discussed on Jun 30
Status from Jun 30: jerry: I will comment on the bug after the meeting.

a) Bug 27980 - [MSE] Ambiguous behaviour when running sourcebuffer.abort()
https://www.w3.org/Bugs/Public/show_bug.cgi?id=27980

b) Bug 27982 - Clarify asynchronicity in duration change algorithm when reducing duration
https://www.w3.org/Bugs/Public/show_bug.cgi?id=27982

7. Other MSE Bugs

a) Bug 28710 - [MSE] Ambiguous behavior with Coded Frame Processing algorithm
https://www.w3.org/Bugs/Public/show_bug.cgi?id=28710
Status from Jun 2 meeting: This bug is about TrackBuffer and may be a duplicate.

b) Bug 28727 - [MSE] Per spec, no frame will be removed when changing mediasource duration
https://www.w3.org/Bugs/Public/show_bug.cgi?id=28727 
Status from Jun 2 meeting: Matt stated 'This one is interesting and is related to my work on Chromium. Related to Coded Frame Removal."

c) [Bug 28557] New: Coded frame removal algorithm may introduce discontinuity at end of current coded frame group
https://www.w3.org/Bugs/Public/show_bug.cgi?id=28557
Possibly related to:
https://www.w3.org/Bugs/Public/show_bug.cgi?id=27242
Status from May 5: Awaiting Matt's pull request proposal.

d) [Bug 28573] New: suspending and notifying resumption of a download for a media element fetching from a MediaSource
https://www.w3.org/Bugs/Public/show_bug.cgi?id=28573
Status from May 5: Awaiting Matt's proposed response.

e) Bug 27239 - Update SourceBuffer.appendStream() and related algorithms to use ReadableByteStream
https://www.w3.org/Bugs/Public/show_bug.cgi?id=27239#c8 
Status from May 12: Awaiting Matt's review.

8. MSE status and bugs

a) Media Source Extensions editor's draft 
https://dvcs.w3.org/hg/html-media/raw-file/default/media-source/media-source.html
Last updated on April 7.  

b) Media Source Extensions bugs: 
http://tinyurl.com/kfeptqy
Status as of Jul 13: 18 bugs
Status as of jun 29: 15 bugs
Status as of Jun 15: 13 bugs
Status as of Jun 1: 14 bugs

9. Next meeting
Proposal: The TF meeting on Jul 21 will cover MSE topics.

10. Any other business
 
11. Chair and Scribe for next meeting

12. Adjournment
 
== Dial-in and IRC Details ==
 
 Media Task Force Call:
https://www.w3.org/wiki/HTML/Media_Task_Force/Call 

 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
Received on Monday, 13 July 2015 16:56:51 UTC

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