Second Screen WG/CG - TPAC 2023 agenda

[anssiko]

🚧 This issue is to work out an agenda for the Second Screen WG/CG TPAC 2023 hybrid meeting.

Registration

TPAC registration is open until 2 September 2023:
https://www.w3.org/2023/09/TPAC/registration.html

Logistics

• 🏨 Venue: Meliã Sevilla Hotel in-person & remote

• 🗓️ Meeting invite: see Calendar export options

• ⏰ Schedule: Friday 15 September 2023 16:00-18:30 local time (see your local time)

  • ℹ️ We have the meeting room booked from 9:30 until 18:30, but we start the meeting at 16:00 with a compressed agenda to better cater to both remote as well as in-person attendees. The meeting invite will be updated accordingly.

• 📞 Zoom details: 🗓️ Calendar is updated with the Zoom URL on September 1

• ✍️ IRC or irc://irc.w3.org:6667/#webscreens

Agenda

Feedback and suggestion on specific agenda items welcome via comments. 👇

🚧 This is a Living Agenda, please expect updates. We'll do the usual agenda bashing at the beginning of the meeting for any last-minute additions subject to available agenda time.

Joint session with Web of Things

⏰ Lunch: 13:00 - 14:30

We will have an informal joint session over lunch with the Web of Things group to discuss relevant Matter use cases and interoperability.

• Second Screen WG is looking to adapt the Open Screen Protocol to allow reuse of the Matter protocol to improve interoperability of browser implementations of Presentation and Remote Playback APIs.

• Web of Things is exploring whether its Thing Descriptions could include Matter compatible devices.

Welcome

⏰ 16:00

• Agenda bashing, last-minute tunings

APIs

⏰ 16:10

• Window Management

  • Slide deck: Window Management
  • New proposals:
    • Fullscreen Popups
    • Many Windows, Many Screens
    • Additional Windowing Controls
    • Borderless mode
  • Virtual Display Testing
    • Check pulse on Chromium test framework support for managing virtual displays at the OS level

• Remote Playback API

  • Remote Playback API tests and implementation report remote-playback#92
  • Adding tests for remote playback API web-platform-tests/wpt#35827
    • This PR was merged as there were no substantive comments remaining
    • @mfoltzgoogle put up a followup PR Apply changes from code review comments. web-platform-tests/wpt#41852 with minor suggested improvements on top
    • One test failure found in Chrome
  • Proposal from Media WG to Add Picture-in-Picture to note about local playback device Remove monkey patch sections picture-in-picture#191

• Presentation API

  • No high priority issues (see P1 v1 and P1)

Matter and Open Screen Protocol

⏰ 17:20

Continue evaluate features of Matter such as IP-based networking technologies for discovery, authentication, transport and media streaming. Discuss updates to the Open Screen Protocol to align with or reuse these features where appropriate.

OSP and Matter interop

• Slide deck: Matter and Open Screen Protocol
• Liaison with CSA, current status and discussion
• Areas of investigation from Second Screen WG/CG - 2023 Q1 virtual meeting #7:
  • How to use Matter transport to convey CBOR messages (for “tunneling”)?
  • Suitability of the Matter transport for streaming use cases?
  • How to leverage Matter to create an authenticated QUIC connection?
  • Investigate the “Casting Video Client” device type (Device Library 10.6).

Feedback from Matter vendors

• Discussion with Matter vendors to solicit input for OSP considerations
• Matter protocol similarities openscreenprotocol#308

OSP updates and next steps

• Cleanup of issues from early in spec incubation
• Some issues were labeled as out of scope for v1
• Reviews of pull requests for remaining v1-spec issues
• Open Screen Protocol wide review for Rec Track

New incubations

⏰ 18:20

• Announcement from WICG: Local Peer-to-Peer API with a possible OSP-based implementation (WICG issue with discussion)
• Proposal from Edge: Allow target navigation at split tab

Minutes

• Second Screen TPAC 2023 meeting minutes

Participants

All registered Second Screen WG and CG participants welcome.

Remote participation considerations

• Afternoon session preferred by Mark, Brad and Mike.