Second Screen WG/CG - 2022 Q2 virtual meeting

[anssiko]

Registration

All Second Screen WG and CG participants are welcome to attend this virtual meeting without registration. Guest participation with an invite.

Some expected Participants listed below 👇

Logistics

The meeting takes place:

• ⏰ 06:00-07:30 UTC, 7 June 2022 - 🗓 Meeting invite - 📞 Zoom details
• ⏰ 06:00-07:30 UTC, 8 June 2022 - 🗓 Meeting invite - 📞 Zoom details

We use IRC for scribing and sharing meeting material during the meeting:

• ✍️ Use W3C's IRC web client or irc://irc.w3.org:6667/#webscreens

Zoom and meeting invite links restricted to Second Screen CG participants and W3C Members, non-Members ping @tidoust in comments or send him an email. See poll results for participants' availability.

Agenda

Day 1

Welcome

• Setting the scene led by @anssiko
  • WG Charter 2022-2024 substantial changes
  • Patent Advisory Group update
  • CG Charter update 2022
• Introductions
• Agenda bashing

Presentation API v1

Scope is stable, pending OSP implementation feedback and stabilization.

Presentation API v2 and new features

Review and discuss new features and proposals.

Explainers:

• Site Initiated Mirroring API led by @takumif

Proposed new features:

• Local Presentation API to enable child-window presentation documents #347
• Presentation of objects #439
• Other extensions identified as v2 features by the WG

Remote Playback API v1

• Implementation report refresh
• Path to Proposed Recommendation

Remote Playback API v2

(Open for discussion.)

Multi-Screen Window Placement API

• Path to First Public Working Draft
• Discuss Mozilla's feedback Window Management mozilla/standards-positions#542 and Multi-Screen Window Placement: Fullscreen Companion Window mozilla/standards-positions#636

Day 2

Multi-Screen Window Placement API

• New feature requests: labels/enhancement
• Proposed near-term API enhancements led by @michaelwasserman:
  • Fullscreen Companion Windows (ChromeStatus, Explainer, Chromium Issue)
    • PR out for review: Add an outline for initiating multi-screen experiences #101
  • Fullscreen Capability Delegation (ChromeStatus, WICG Draft Report Section, Preliminary Doc, Chromium Issue)
  • Accurate Screen Labels (ChromeStatus, Chromium Issue)
• Considered medium-term API enhancements led by @michaelwasserman:
  • Opening child window in fullscreen / window.open should support the 'fullscreen' option #7
    • Related Feature request: Fullscreen support on multiple screens #92
  • Other ways to extend User Activation concepts for multi-screen/window interactions.

Virtual Display Exploration

Discuss and explore the use of virtual displays for web apps.

Presentation on Virtual Display Use Case Exploration presented by @anssiko

Open Screen Protocol

Review open security and v1 related issues. Group members should feel free to tag issues they would like to discuss with the label "F2F" and optionally prepare a PR with a proposed resolution. Led by @mfoltzgoogle.

• Open Screen Protocol - v1 issues
  • [Remote Playback] Capabilities for HDR rendering and display and PR #225
  • Use the same codec names as the media APIs.
• Open Screen Protocol - security issues
  • Not addressing in the interest of time; plan to spend TPAC session on this

Connectivity Standards Alliance coordination

The Second Screen Working Group will evaluate features of Matter such as IP-based networking technologies for discovery, authentication, transport and media streaming. The Working Group will discuss updates to the Open Screen Protocol to align with or reuse these features where appropriate. (WG Charter)

• Presentation on Matter and Open Screen Protocol presented by @mfoltzgoogle

TPAC 2022

Heads up: TPAC 2022 in Vancouver on 12-16 September 2022.

Minutes

• Second Screen 2022 Q2 virtual - Day 1/2 minutes
• Second Screen 2022 Q2 virtual - Day 2/2 minutes

Participants

Some participants with timezone breakdown. Checked box indicates confirmed availability for the proposed meeting dates/times.

Please do not hesitate to drop a comment to be added to the list of participants here.

EU

• Francois Daoust @tidoust
• Anssi Kostiainen @anssiko
• Louay Bassbouss @louaybassbouss
• Kenneth Christiansen @kenchris
• Chris Needham @chrisn
• Kasar Masood
• Michiel De Backker @backkem
• Fritz Heiden @FritzHeiden

US West Coast

• Mark Foltz @mfoltzgoogle
• Mike Wassermann @michaelwasserman
• Srikanth Kambhatla @skambhatla
• Zouhir Chahoud @zouhir
• Daniel Libby @dlibby-

US East Coast

• Alexis Menard @darktears

APAC

• Pavlo Buidenkov @pavlobu
• Hyojin Song @anawhj
• Takumi Fujimoto @takumif

[markafoltz]

@anssiko and group, I have made some proposals for the agenda above.

• I removed the item for the local display mode, as we are currently focused on the Site Initiated Mirroring API for these use cases and I don't plan on further work on the local display mode explainer.
• I added an item to discuss open issues with Open Screen Protocol and will tag some issues with F2F that will have PRs or would benefit from discussion.
• I added an item to present on Matter and OSP.
• I added @takumif as a potential participant.

Thank you for organizing and I look forward to the meeting!

[anssiko]

Thank you everyone for your contributions to the agenda building both here on GH and over email. The OP has been updated with your feedback. If I missed anything, please chime in.

As communicated earlier, we may be able to squeeze in one or two more topics -- please chime in here or reach out via email by 13 May 2022 with proposals. We continue iterate the agenda details toward the meeting, but want to nail down the major topics.

Also proposals for new incubations that might fit the Community Group's scope but are not yet explicitly noted are welcome for introduction and discussion.

Also, please respond to the scheduling poll by 13 May 2022 if you want to influence when the meeting takes place:
https://doodle.com/meeting/participate/id/aQWx1Y0d

[anssiko]

FTR: Second Screen WG/CG - 2022 Q2 virtual meeting - announcement

[markafoltz]

FYI, I updated the agenda with two issues for Open Screen Protocol to discuss briefly tonight. Should be only 5-10 minutes, tops.

[michaelwasserman]

I also updated some links for pre-existing Multi-Screen Window Placement topics.

[chrisn]

Is it possible to share the slides that were presented (e,g., on Virtual Displays and Matter)?

[anssiko]

The agenda has been updated with links to the Virtual Display Use Case Exploration and Matter and Open Screen Protocol presentations.

The draft meeting minutes can be found here:

• Second Screen 2022 Q2 virtual - Day 1/2 minutes
• Second Screen 2022 Q2 virtual - Day 2/2 minutes

Thanks again everyone for another productive meeting and exciting discussions. We look forward to seeing you in Vancouver this September!