Re: Future of WebVTT

This page already exists and lists existing WebVTT implementations:

https://www.w3.org/wiki/TimedText/EffortsAndSpecifications#WebVTT-based_efforts_and_specifications

Now it needs to be broken down on a per feature basis.

Cheers,
Silvia.

On Tue., 27 Nov. 2018, 7:10 pm Thierry MICHEL <tmichel@w3.org wrote:

> Hi Gary
>
> Looking forward to hear from you Thursday during the TTWG call.
>
> The first information we would like to be aware of is the current level of
> Implementation.
>
> *1- Products:*
>
> There are Browsers implementation of WebVTT (Chrome, Edge, Firefox,
> Safari, etc.). But these don't seem to implement yet all the WebVTT
> features.
> Therefore, apart from the browsers, are there other products implementing
> WebVTT, such as  Polyfills, Setup box , software (VLC), etc, ?
>
> A list of implementation of all know  WebVTT products would be helpful.
>
> *2- Testsuite:*
>
> Do you know how complete is the WebVTT testsuite? [1] is it covering all
> functionalities of the spec (at lest one test per feature)
>
>
> *3- Implementation Report.*
>
> The next goal for WebVTT is to exit Candidate Rec and move to PR. In order
> to do so we must fulfill the CR exit criteria [2].
>
> *[**For this specification to exit the CR stage, at least 2 independent
> implementations of every feature defined in this specification need to be
> documented in the implementation report. The implementation report is based
> on implementer-provided test results for the test suite
> <https://github.com/w3c/web-platform-tests/tree/master/webvtt>. The Working
> Group does not require that implementations are publicly available but
> encourages them to be so.*
>
> To demonstrate webVTT fulfills the CR exit criteria we must provide an
> implementation report [3], currently a space holder.
>
> Looking at your slides, there are results similar to an implementation
> Report.
> http://slides.com/gkatsev/wpt-webvtt#/2/5
>
> Are these results available as a whole ?
>
>
> [1] https://github.com/web-platform-tests/wpt/tree/master/webvtt
>
> [2] https://www.w3.org/TR/2018/CR-webvtt1-20180510/#status
>
> [3] https://www.w3.org/wiki/TimedText/WebVTT_Implementation_Report
>
>
> Thierry
> On 26/11/2018 22:48, Gary Katsevman wrote:
>
> I'll definitely make sure to attend the weekly TTWG teleconference. I've
> added it to my calendar so I won't forget. I should be able to attend this
> Thursday's meeting.
>
> I don't know much about the TTWG F2F and but I can find out if I get more
> information about it.
>
> --Gary.
>
> On Mon, Nov 19, 2018 at 2:55 AM Thierry MICHEL <tmichel@w3.org> wrote:
>
>> Gary,
>>
>> On sunday, I did miss your name in the list ;-(
>> Therefore nothing administrative to do on your side.
>>
>> To join the weekly TTWG teleconference :
>>
>> Our teleconference is scheduled with reference to UTC Time, the correct
>> time of this teleconference in your locale may change.
>> Check
>> https://www.timeanddate.com/worldclock/fixedtime.html?iso=20181108T15&p1=1440
>> Thursdays 15:03am-17:00pm UTC
>>  Joining details:
>> see https://lists.w3.org/Archives/Member/member-tt/2016Oct/0009.html
>> (members-only link – if you can't see this and wish to join please
>> contact me)
>>
>> Do you think you can attend a teleconference soon ?
>>
>> We will have a TTWG F2F in Geneva, Jan 30and 31st at EBU.
>>
>> Do you think you could attend to discuss WebVTT ?
>>
>> Thierry
>>
>>
>> On 18/11/2018 22:17, Gary Katsevman wrote:
>>
>> When logging on to that page, I see myself listed there. I thought I
>> applied and was granted Invited Expert status back in September.
>> Was there anything else to do?
>>
>> Thanks,
>> --Gary.
>>
>>
>> On Sun, Nov 18, 2018 at 3:34 PM Silvia Pfeiffer <
>> silviapfeiffer1@gmail.com> wrote:
>>
>>> May I recommend inviting him as an expert? Would that resolve the issue?
>>> Thanks,
>>> Silvia.
>>> On Sun, Nov 18, 2018 at 9:27 PM Thierry MICHEL <tmichel@w3.org> wrote:
>>> >
>>> >
>>> > Silvia,
>>> >
>>> > The TTWG participants are listed here:
>>> >
>>> > https://www.w3.org/2000/09/dbwg/details?group=34314
>>> >
>>> > As you can see that Gary is not a TTWG participant
>>> >
>>> > Best,
>>> >
>>> > Thierry
>>> >
>>> >
>>> > On 17/11/2018 21:08, Silvia Pfeiffer wrote:
>>> >
>>> > Hi Thierry,
>>> > I was under the impression that Gary was an invited expert in the TTWG
>>> and this able to take over. Could you please check?
>>> >
>>> > Thanks,
>>> > Silvia.
>>> >
>>> >
>>> > On Sat., 17 Nov. 2018, 6:47 pm Thierry MICHEL <tmichel@w3.org wrote:
>>> >>
>>> >> David,
>>> >>
>>> >> If we let it lie there are poor chances it will stand up ;-)
>>> >>
>>> >> But if that is the plan let's go for it.
>>> >>
>>> >> Thierry.
>>> >>
>>> >> On 16/11/2018 20:02, David Singer wrote:
>>> >>
>>> >> what PLH and I agreed was that we’d let the situation lie until the
>>> re-charter. If Gary produces the materials, we can help steer it through
>>> (and maybe he’d join).
>>> >>
>>> >> On Nov 16, 2018, at 10:58 , Thierry MICHEL <tmichel@w3.org> wrote:
>>> >>
>>> >> David,
>>> >>
>>> >> Without you and Sylvia, there is none left in the TTWG to work on
>>> WebVTT.
>>> >> Gary isn't a TTWG participant.
>>> >>
>>> >> With regards to this configuration, I don't see how we could achieve
>>> to exit CR.
>>> >>
>>> >> Probably  the best is to publish a Working Group Note as you had
>>> proposed earlier.
>>> >>
>>> >> Thierry
>>> >>
>>> >>
>>> >>
>>> >>
>>> >>
>>> >> On 16/11/2018 18:17, David Singer wrote:
>>> >>
>>> >> Hi
>>> >>
>>> >> Gary, the new editor, has an idea of how to show we have
>>> implementation and interop.  He’s aware of the need to do that before the
>>> re-charter happens. At TPAC I effectively stepped away; PLH asked me to
>>> stay as nominal co-chair until the re-charter but I can no longer give this
>>> even the minimal attention I was giving it.
>>> >>
>>> >> I’m wishing Gary the best of luck, asking my colleagues to help him
>>> as much as they can (and other implementers)…
>>> >>
>>> >> Silvia also can no longer give this the degree of attention she was
>>> giving it (she’s in a startup in a different field).
>>> >>
>>> >>
>>> >> On Nov 16, 2018, at 8:31 , Thierry MICHEL <tmichel@w3.org>
>>> >>  wrote:
>>> >>
>>> >> David,  Sylvia,
>>> >>
>>> >> WebVTT was published as a Candidate Recommendation on 10 May 2018.
>>> >>
>>> >>
>>> >> https://www.w3.org/TR/2018/CR-webvtt1-20180510/
>>> >>
>>> >> In order to exit CR, the TTWG needs to demonstrate implementation
>>> experience according the the WebVTT exit criteria.
>>> >>
>>> >> Recently David sent an email saying that "there is no-one who is
>>> willing to do the work to document VTT interoperability and the CR exit
>>> criteria, and that we might still have trouble proving implementability of
>>> every feature." He also added "we should not prolong the fiction that we’ll
>>> emerge from CR into Rec status, but instead do what the process requires,
>>> publish the CR as a WG note, and also keep the CG alive to keep the living
>>> standard."
>>> >>
>>> >>
>>> >> https://lists.w3.org/Archives/Public/public-tt/2018Oct/0047.html
>>> >>
>>> >>
>>> >> Sylvia seems to say that there is a certain level of implementation
>>> of the WebVTT features and their interoperability based on the Web Platform
>>> Tests (WPT).
>>> >>
>>> >> Therefore we need to discus this and evaluate there is a path to move
>>> forward.
>>> >>
>>> >> The TTWG is considering rechartering its Charter by May 2019 for new
>>> deliverable.
>>> >>
>>> >> My management told me that if WebVTT could not exit CR by May 2019,
>>> it is unlikely it will make it into the next Charter.
>>> >>
>>> >> Therefore David and Sylvia, could you please join the next TTWG
>>> Thursday meeting,  to discuss this issue ?
>>> >>
>>> >> - How complete is the WebVTT test suite ?
>>> >> - What is the current level of WebVTT implementation?
>>> >> - Who will do the work to document WebVTT interoperability and the CR
>>> exit criteria
>>> >>
>>> >> Looking forward to talk to you during a next meeting,
>>> >>
>>> >> Thierry.
>>> >>
>>> >>
>>> >>
>>> >> David Singer
>>> >> Manager, Software Standards, Apple Inc.
>>> >>
>>> >>
>>> >> David Singer
>>> >> Manager, Software Standards, Apple Inc.
>>> >>
>>>
>>