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

See http://www.w3.org/2015/07/14-html-media-minutes.html and below.

/paulc

Paul Cotton, Microsoft Canada
17 Eleanor Drive, Ottawa, Ontario K2E 6A3
Tel: (425) 705-9596 Fax: (425) 936-7329


[W3C]<http://www.w3.org/>

- DRAFT -
HTML Media Task Force Teleconference
14 Jul 2015

Agenda<https://lists.w3.org/Archives/Public/public-html-media/2015Jul/0017.html>

See also: IRC log<http://www.w3.org/2015/07/14-html-media-irc>

Attendees
Present
paulc
Regrets
Chair
paulc
Scribe
paulc
Contents

  *   Topics<http://www.w3.org/2015/07/14-html-media-minutes.html#agenda>
     *   New MSE bugs<http://www.w3.org/2015/07/14-html-media-minutes.html#item01>
     *   Bugs 27980<http://www.w3.org/2015/07/14-html-media-minutes.html#item02>
     *   Next meeting<http://www.w3.org/2015/07/14-html-media-minutes.html#item03>
  *   Summary of Action Items<http://www.w3.org/2015/07/14-html-media-minutes.html#ActionSummary>

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<trackbot> Date: 14 July 2015

<scribe> Scribenick: paulc
New MSE bugs

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

https://www.w3.org/Bugs/Public/show_bug.cgi?id=28877

Filed by Mozilla

Matt: This bugs seems to align with our bugs a track buffer
... I will check this and determine if the spec needs to be changed.
... This is part of the track buffer set and it seems to be possibily related to the "range removal" bugs. See later in these minutes

There are two editorial bugs

Bug 28881 - [MSE] Period instead of comma

https://www.w3.org/Bugs/Public/show_bug.cgi?id=28881

Bug 28882 - [MSE] Space before period

https://www.w3.org/Bugs/Public/show_bug.cgi?id=28882

Matt: These are assigned to me and they do look editorial

ISSUE-5 - Seekable differs from non-MSE behavior

https://github.com/w3c/media-source/issues/5

Jerry: I am not sure what they are saying. Is there actually a difference between MSE and the Safari behaviour.

Matt: May be related to a previous bugzilla bug.

Could the related bug be: 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

Matt: ISSUE-5 is related to this.

Jerry: The difference could be MSE goes from zero to highest end time by the buffered attribute and they are proposing a sliding window.

Matt: 28822 is probably different.

Who is this assigned to?

Jerry: It is not assigned currently.

Matt: I will take this one and further dialogue is needed.

Jerry: I will help.
Bugs 27980

Bug 27980 - [MSE] Ambiguous behaviour when running sourcebuffer.abort()

https://www.w3.org/Bugs/Public/show_bug.cgi?id=27980

Matt: My proposal is in https://www.w3.org/Bugs/Public/show_bug.cgi?id=27980#c5
... What is Netflix doing?

Mark: I will look into your question and will get back to you?

Matt: I will put together a pull request to match this proposal and we can discuss that.

We also need to hear back from Mozilla.

Matt; I will wait for Mark to respond, then do the PR if it is okay and then check with Mozilla.

Also related is Bug 27982 - Clarify asynchronicity in duration change algorithm when reducing duration

https://www.w3.org/Bugs/Public/show_bug.cgi?id=27982

There was a reference on Jun 30 to a third related bug but I have not found it.

See also 28877 https://www.w3.org/Bugs/Public/show_bug.cgi?id=28877 noted above

Matt: Third related bug is Bug 28557 - 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
Next meeting

MSE will be discussed in two weeks on Jul 28

Adjourned at :27 after the hour.

Summary of Action Items
[End of minutes]
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$Date: 2015/07/14 15:28:25 $
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