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Re: Bullet chatting interchange format was: W3C M&E IG conference call: 7th January 2020

From: Nigel Megitt <nigel.megitt@bbc.co.uk>
Date: Thu, 9 Jan 2020 18:27:09 +0000
To: Pierre-Anthony Lemieux <pal@sandflow.com>, "public-web-and-tv@w3.org" <public-web-and-tv@w3.org>
Message-ID: <A30AD1D2-D71D-4E68-9209-28180C3D2C00@bbc.co.uk>
Pierre, all,

I agree that it is important to consider Pierre's question below.

I would also ask an additional related question: is there a requirement for a common interchange format for bullet chats that works interoperably across multiple applications?

Kind regards,


´╗┐On 09/01/2020, 18:15, "Pierre-Anthony Lemieux" <pal@sandflow.com> wrote:

    Dear all,
    Per our call on Tuesday and looking at the bullet chatting use cases
    at [1], below are follow-up questions/observations.
    With the exception of perhaps the "Interactive wall" use case, the use
    cases seem to involve a web application (provided by the service
    provider) running in a user agent (web browser).
    Is that accurate?
    For use cases that involve a web application running in a user agent,
    it is not evident that an interchange format such as TTML or WebVTT is
    necessary: the web application can simply interact directly with the
    user agent using CSS, DOM, etc. to display the bullet chat -- without
    the need for an intermediary interchange format.
    What are the use cases that do not involve web application (provided
    by the service provider) running in a user agent?
    Documenting all use cases is critical to help select the right
    technical solution for the interchange format and/or API. For example,
    do some use cases involve players that do not have access to the web
    -- Pierre
    [1] https://w3c.github.io/danmaku/usecase.html

    On Tue, Dec 31, 2019 at 7:49 AM Chris Needham <chris.needham@bbc.co.uk> wrote:
    > When: 07 January 2020 15:00-16:00. (UTC) Dublin, Edinburgh, Lisbon, London
    > Where: Webex
    > *~*~*~*~*~*~*~*~*~*
    > Dear all,
    > The next Media & Entertainment Interest Group will be on Tuesday 7th January.
    > This call will focus on Bullet Chatting, where I hope we can make further progress towards identifying what new standards are needed to support this use case.
    > # Agenda
    > - Welcome
    > - Bullet Chatting Task Force [Song Xu, Chris]
    >   - Objectives: identifying what new standards are needed:
    >     - A new data interchange format, e.g., TTML/ WebVTT?
    >     - A new client/server API?
    >     - Changes to HTML?
    >   - See Use Cases [1] and API Proposal [2]
    > - AOB
    > # Date and time
    > Tuesday, January 7, 2020
    > 10:00 am | EST (New York, GMT-05:00) | 1 hour
    > https://www.timeanddate.com/worldclock/fixedtime.html?msg=Media-Entertainment-IG&iso=20200107T15&ah=1

    > # Connection details
    > https://lists.w3.org/Archives/Member/member-web-and-tv/2018Sep/0001.html (member-only link)
    > Kind regards,
    > Chris (Co-chair, W3C Media & Entertainment Interest Group)
    > [1] https://w3c.github.io/danmaku/usecase.html

    > [2] https://w3c.github.io/danmaku/api.html


Received on Thursday, 9 January 2020 18:27:13 UTC

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