W3C

- DRAFT -

HTML Media Task Force Teleconference

11 Aug 2015

See also: IRC log

Attendees

Present
markw, davide, jdsmith, adrianba, cwilso
Regrets
Chair
paulc
Scribe
joesteele

Contents


<trackbot> Date: 11 August 2015

scrbe: joesteele

<scribe> scribe: joesteele

role call, agenda

<paulc> dropped off a minute there

present +MattWolenetz

MSE test suite status

<paulc> http://w3c.github.io/test-results/media-source/all.html

paulc: stil outstanding is update from Jerry on IE11 or Edge

MattWolenetz: Jerry has also been getting up to speed

<paulc> Track interface pieces: https://lists.w3.org/Archives/Public/public-html-media/2015Jul/0015.html

paul: some discussion about track Interface implementation has been done

MattWolenetz: those will need valid tests and an implementation, Chrome is behind on that right now for me to do

… some text tracks, no audio tracks as yet

paulc: Microsoft thought there might be some issues withthe WebIDL here

MattWolenetz: I think the WebIDL interfaces were failing pretty badly on Chrome, need to follow up there

… e.g. source buffer interface operations — Firefox, IE have slightly better passing. Might be a change on one side or the other

… have a bug on that

… 2 things — track stuff is known work with known test gaps (no implementation)

… other part is Chrome is failing some of the WebIDL stuff (internal bug on that)

paulc: can you respond to the thread with that status and point to the Chrome bugs?

MattWolenetz: sure

New MSE bugs

Bug 29002 - [MSE] It is possible to append media segments when no corresponding init segment has been appended

https://www.w3.org/Bugs/Public/show_bug.cgi?id=29002

paulc: have you had a chance to look Matt?

<paulc> Matt responded as INVALID: https://www.w3.org/Bugs/Public/show_bug.cgi?id=29002#c1

MattWolenetz: believe it is an invalid scenario

… once you reach “have metadata” state and append something else, that should call the “end of stream” algorithm.

… that ends up chaining to the HTML media element stuff and gettting into the resource selection alg

… after that you need to make sure there is no error on the media element, but there is so you can’t append anything more

… not sure how you could do successfull parsing in this case

paulc: lets see how the original responder comes back

MattWolenetz: would be open to fixing if it looks fixable

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

https://www.w3.org/Bugs/Public/show_bug.cgi?id=29008

<paulc> Matt's repsonse: https://www.w3.org/Bugs/Public/show_bug.cgi?id=29008#c1

MattWolenetz: seems like there is an undefined thing here — a bit ambiguous

… need a header to proceed, but what that is - is not defined

… would be great to have coded frames emittable without the abort

… suggested replacement text seems to make sense to me

… open to better text if available

… Either we need to define this for each byte stream (seems non-interoperable)

… or we leave this up to the implementation to get the decodable frames (more flexible)

paulc: now we can go over the existing bugs again — for the list of bugs in the agenda any changes?

jdsmith: no updates yet — I know I am overdue

MattWolenetz: also here

jdsmith: I could devote some time, but I have been prioritizing EME as that seems more pressing

… could put this first instead

… talked about the capabilities thing, which has kept me from that

paulc: I would make sure you are comfortable with the text results first

… while you are doing that if Matt can focus on the bugs, maybe we will have more information on the test results and track attrobute question

… if Matt also makes headway on the bugs we will be in better shape

… I think the best plan is to give you some time back now to work on these

scribe: reconvene in 2 weeks

I will stay in touch with the editors

MattWolenetz: Jerry do you think we need IE11 results on the test page? or are you focusing on Edge?

jdsmith: we don’t intend to make changes to IE11 - focusing on Edge

… but would like to have both on the page still for now

MattWolenetz: ok

paulc: bye

s/topic\: //

Summary of Action Items

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Present: markw davide jdsmith adrianba cwilso
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People with action items: 

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