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{agenda} HTML WG media telecon 2015-08-25 - MSE bug status and CR test results

From: Paul Cotton <Paul.Cotton@microsoft.com>
Date: Tue, 25 Aug 2015 00:23:23 +0000
To: "public-html-media@w3.org" <public-html-media@w3.org>
Message-ID: <CY1PR0301MB1196B086A86F07EEBD9D01B8EA610@CY1PR0301MB1196.namprd03.prod.outlook.com>
NOTE: This meeting will use the Webex phone facility!!!

https://www.w3.org/wiki/HTML/Media_Task_Force/Call<https://na01.safelinks.protection.outlook.com/?url=https%3a%2f%2fwww.w3.org%2fwiki%2fHTML%2fMedia_Task_Force%2fCall&data=01%7c01%7cPaul.Cotton%40microsoft.com%7ca7cae1ae996148b7f94308d2a1b93d7c%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=znPQBOJ6bGJzDo%2fyIHtcnBmqWpN%2bPV7YoWgIr5dJy58%3d>



The HTML WG media teleconference meeting will occur on 2015-07-28 for up to 60 minutes from 15:00Z to 16:00Z.



http://timeanddate.com/s/2vf8



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

Aug 11:

http://www.w3.org/2015/08/11-html-media-minutes.html

Jul 14:

http://www.w3.org/2015/07/14-html-media-minutes.html<https://na01.safelinks.protection.outlook.com/?url=http%3a%2f%2fwww.w3.org%2f2015%2f07%2f14-html-media-minutes.html&data=01%7c01%7cPaul.Cotton%40microsoft.com%7ca7cae1ae996148b7f94308d2a1b93d7c%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=WJwpZbV8l%2boQYKkFZ80P1hdPv3Uo0aMdSGwIuydrNLY%3d>

Jun 30:

http://www.w3.org/2015/06/30-html-media-minutes.html<https://na01.safelinks.protection.outlook.com/?url=http%3a%2f%2fwww.w3.org%2f2015%2f06%2f30-html-media-minutes.html&data=01%7c01%7cPaul.Cotton%40microsoft.com%7ca7cae1ae996148b7f94308d2a1b93d7c%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=Tl1CJ%2femS5J5TLe3HMvWzE%2b%2fZDpk%2f2Dc6rxKkGPryZA%3d>



3. MSE test suite status



a) Jun 29 test results including Safari results

http://w3c.github.io/test-results/media-source/all.html<https://na01.safelinks.protection.outlook.com/?url=http%3a%2f%2fw3c.github.io%2ftest-results%2fmedia-source%2fall.html&data=01%7c01%7cPaul.Cotton%40microsoft.com%7ca7cae1ae996148b7f94308d2a1b93d7c%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=CgtlBWoy%2b%2f30U%2bPnKoV9fA0ZJKIBIS%2fhFK595PZX5dU%3d>



b) Many of the *Track interface pieces are yet to be implemented

https://lists.w3.org/Archives/Public/public-html-media/2015Jul/0015.html<https://na01.safelinks.protection.outlook.com/?url=https%3a%2f%2flists.w3.org%2fArchives%2fPublic%2fpublic-html-media%2f2015Jul%2f0015.html&data=01%7c01%7cPaul.Cotton%40microsoft.com%7ca7cae1ae996148b7f94308d2a1b93d7c%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=e09yyeLofr89hMxInwTcF0zNih%2bKw040YC8hUbrgNKk%3d>

Update from Matt: https://lists.w3.org/Archives/Public/public-html-media/2015Aug/0007.html



4. Recent MSE bugs



a) Bug 29008  - [MSE] Media Segment Header is not defined

https://www.w3.org/Bugs/Public/show_bug.cgi?id=29008<https://na01.safelinks.protection.outlook.com/?url=https%3a%2f%2fwww.w3.org%2fBugs%2fPublic%2fshow_bug.cgi%3fid%3d29008&data=01%7c01%7cPaul.Cotton%40microsoft.com%7ca7cae1ae996148b7f94308d2a1b93d7c%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=KjQ%2bSSVERiHBQ6layVtDQqtWV%2f58zjefpzqfFuY6A1A%3d>



5. MSE bugs



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<https://na01.safelinks.protection.outlook.com/?url=https%3a%2f%2fwww.w3.org%2fBugs%2fPublic%2fshow_bug.cgi%3fid%3d28822&data=01%7c01%7cPaul.Cotton%40microsoft.com%7ca7cae1ae996148b7f94308d2a1b93d7c%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=x9LCh7%2bVCUSMpo%2b22gPTFflUBWpjBG7VyOCA%2fdDYsTE%3d>

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<https://na01.safelinks.protection.outlook.com/?url=https%3a%2f%2fwww.w3.org%2fBugs%2fPublic%2fshow_bug.cgi%3fid%3d28857&data=01%7c01%7cPaul.Cotton%40microsoft.com%7ca7cae1ae996148b7f94308d2a1b93d7c%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=5IPDqBfP7LKozQnBL%2b73kqX3AvUthZC1cf2IzW8JJn4%3d>

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 and Jul 14:

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<https://na01.safelinks.protection.outlook.com/?url=https%3a%2f%2fwww.w3.org%2fBugs%2fPublic%2fshow_bug.cgi%3fid%3d27980&data=01%7c01%7cPaul.Cotton%40microsoft.com%7ca7cae1ae996148b7f94308d2a1b93d7c%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=b%2fnFYOElTe7TutvR8HigKiMXxut7AiTQQP9JbQPvYRc%3d>



b) Bug 27982 - Clarify asynchronicity in duration change algorithm when reducing duration

https://www.w3.org/Bugs/Public/show_bug.cgi?id=27982<https://na01.safelinks.protection.outlook.com/?url=https%3a%2f%2fwww.w3.org%2fBugs%2fPublic%2fshow_bug.cgi%3fid%3d27982&data=01%7c01%7cPaul.Cotton%40microsoft.com%7ca7cae1ae996148b7f94308d2a1b93d7c%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=JerUMjRKzfuUjaLz%2b0MAZqIjAqw84rdUVi9ZUOCean8%3d>



c) Bug 28877 - [MSE] Ambiguous behaviour when running the range removal algorithm

https://www.w3.org/Bugs/Public/show_bug.cgi?id=28877<https://na01.safelinks.protection.outlook.com/?url=https%3a%2f%2fwww.w3.org%2fBugs%2fPublic%2fshow_bug.cgi%3fid%3d28877&data=01%7c01%7cPaul.Cotton%40microsoft.com%7ca7cae1ae996148b7f94308d2a1b93d7c%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=EOJKZmUgPvgBwdFDc%2brKKqv9ScUZA7%2bHKW5laojHvCY%3d>



d) ISSUE-5 - Seekable differs from non-MSE behavior

https://github.com/w3c/media-source/issues/5<https://na01.safelinks.protection.outlook.com/?url=https%3a%2f%2fgithub.com%2fw3c%2fmedia-source%2fissues%2f5&data=01%7c01%7cPaul.Cotton%40microsoft.com%7ca7cae1ae996148b7f94308d2a1b93d7c%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=3jmlC4DfuXP5yO0Yg2ALpu%2bHpnzu2VpnuFTzVeEI5us%3d>



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<https://na01.safelinks.protection.outlook.com/?url=https%3a%2f%2fwww.w3.org%2fBugs%2fPublic%2fshow_bug.cgi%3fid%3d28710&data=01%7c01%7cPaul.Cotton%40microsoft.com%7ca7cae1ae996148b7f94308d2a1b93d7c%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=lZWIoK5HorVE5GDzsUxsbncr5W7bFUPNhyULBwspX6k%3d>

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<https://na01.safelinks.protection.outlook.com/?url=https%3a%2f%2fwww.w3.org%2fBugs%2fPublic%2fshow_bug.cgi%3fid%3d28727&data=01%7c01%7cPaul.Cotton%40microsoft.com%7ca7cae1ae996148b7f94308d2a1b93d7c%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=MBhjZuL4%2b6w1wwMUXQmuscDwRwzeHfAdfKE%2bZSoOQ7U%3d>

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<https://na01.safelinks.protection.outlook.com/?url=https%3a%2f%2fwww.w3.org%2fBugs%2fPublic%2fshow_bug.cgi%3fid%3d28557&data=01%7c01%7cPaul.Cotton%40microsoft.com%7ca7cae1ae996148b7f94308d2a1b93d7c%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=ZNVNxqFNi6rUUpA9Qq0XzpXc0c7zFkEo2Jo7jwWuuo4%3d>

Possibly related to:

https://www.w3.org/Bugs/Public/show_bug.cgi?id=27242<https://na01.safelinks.protection.outlook.com/?url=https%3a%2f%2fwww.w3.org%2fBugs%2fPublic%2fshow_bug.cgi%3fid%3d27242&data=01%7c01%7cPaul.Cotton%40microsoft.com%7ca7cae1ae996148b7f94308d2a1b93d7c%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=I2dWfvONksIQr8J7fQ%2fwtVfNYdIu10ifPptzTrk%2bscU%3d>

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<https://na01.safelinks.protection.outlook.com/?url=https%3a%2f%2fwww.w3.org%2fBugs%2fPublic%2fshow_bug.cgi%3fid%3d28573&data=01%7c01%7cPaul.Cotton%40microsoft.com%7ca7cae1ae996148b7f94308d2a1b93d7c%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=0SjZ5vEQiorbGaDgASXzb%2bzTRrf8DrS1OJD0VDu39a4%3d>

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<https://na01.safelinks.protection.outlook.com/?url=https%3a%2f%2fwww.w3.org%2fBugs%2fPublic%2fshow_bug.cgi%3fid%3d27239%23c8&data=01%7c01%7cPaul.Cotton%40microsoft.com%7ca7cae1ae996148b7f94308d2a1b93d7c%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=BmFx5I7MUHZ0rH08U1Uie2xnIA7rF9hIaARxRbo0SpI%3d>

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<https://na01.safelinks.protection.outlook.com/?url=https%3a%2f%2fdvcs.w3.org%2fhg%2fhtml-media%2fraw-file%2fdefault%2fmedia-source%2fmedia-source.html&data=01%7c01%7cPaul.Cotton%40microsoft.com%7ca7cae1ae996148b7f94308d2a1b93d7c%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=GAUU5dBXfARzhVTMYJ%2b83S9GkQLFLk4UxZHBaTZ0OrM%3d>

Last updated on Jul 14.



b) Media Source Extensions bugs:

http://tinyurl.com/kfeptqy<https://na01.safelinks.protection.outlook.com/?url=http%3a%2f%2ftinyurl.com%2fkfeptqy&data=01%7c01%7cPaul.Cotton%40microsoft.com%7ca7cae1ae996148b7f94308d2a1b93d7c%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=7q1EBcX9evQqPgJ%2f9u2VqpDSKmeeZ8c4JronUu7Z4Rw%3d>

Status as of Aug 24: 17 bugs

Status as of Aug 10: 18 bugs

Status as of Jul 27: 16 bugs

Status as of Jul 13: 18 bugs



9. Next meeting



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<https://na01.safelinks.protection.outlook.com/?url=https%3a%2f%2fwww.w3.org%2fwiki%2fHTML%2fMedia_Task_Force%2fCall&data=01%7c01%7cPaul.Cotton%40microsoft.com%7ca7cae1ae996148b7f94308d2a1b93d7c%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=znPQBOJ6bGJzDo%2fyIHtcnBmqWpN%2bPV7YoWgIr5dJy58%3d>



 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 Tuesday, 25 August 2015 00:23:56 UTC

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