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W3C Media & Entertainment IG Meeting

4 April 2023

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Agenda

Date and time�4 April 2023, 14:00-15:00 UTC

IRC�https://irc.w3.org/?channels=#me

IRC Guide�https://www.w3.org/wiki/IRC

Code of Conduct https://www.w3.org/Consortium/cepc/

Agenda

  • Welcome
  • Rechartering MEIG
    • Review charter draft

​

  • Media WG updates
    • Media Source Extensions
    • Encrypted Media Extensions

​

  • Audiovisual Media Formats for Browsers CG update
    • Proposed charter
  • TPAC 2023 Planning
  • AOB

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MEIG Rechartering

  • MEIG charter ends on 30 April 2023 (extension needed cover the rechartering)
  • Draft charter: https://w3c.github.io/media-and-entertainment/charters/charter-2023.html
  • Key changes:
    • More realistic success criteria
      • Not all suggested outcomes are required for success
      • Participation can be via mailing list or GitHub issues
    • Change “adherence to” to “implementation of” in:
      • Engagement and coordination with other organizations in the media industry to promote implementation of W3C standards
    • Change “tighter support” to “improved support” in our mission statement “to achieve a tighter support of media services on the Web”
    • Added Audiovisual Media Formats For Browsers CG to list of W3C groups to coordinate with

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Media Source Extensions

  • V2 scope proposed limited to features already defined or agreed:
    • Codec switching
    • MSE in Workers
    • ManagedMediaSource proposal: w3c/media-source#232 and explainer document
      • Make it easier for media web site authors to support streaming media playback on constrained capability devices
      • Allow User Agents to react to changes in available memory and networking capabilities
      • Reduce the power impact of MediaSource APIs
    • Priority bug fixes
  • Not in scope for v2: WebCodecs integration: w3c/media-source#184

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Encrypted Media Extensions

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MSE and EME: Recommendation

  • Review against current proposed scope and comment on GitHub issues that are important:
  • Recommend review from CTA WAVE members

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Audiovisual Media Formats For Browsers CG

  • Initial meeting at TPAC 2022 (minutes)
  • Draft charter in preparation: https://github.com/w3c/avmedia-formats-cg/pull/2
    • “The scope of this community group is to provide a forum to discuss features of open and commercial audio-visual media formats that are relevant with web-technologies used in browsers, TVs, and Smart TVs. In particular, this includes identifying and reporting if and how individual formats and their features are referenced, can be called from a web environment and query necessary information from a host system in meaningful ways. The interplay and synchronization among different formats is also considered”
  • Next meeting coming soon - time and date to be announced

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TPAC 2023

  • 11 to 15 September 2023
  • Overlaps IBC: 15 to 18 September 2023
  • Hybrid format: in-person and remote. In person location: Melia Sevilla Hotel, Sevilla, Spain
  • Deadline for groups to request meeting times: 8 May 2023
  • There are 2 x 1.5 hr sessions (morning) and 2 x 2 hr sessions (afternoon) each day
  • MEIG meeting
    • Propose: Monday morning (1 or 2 x 1.5 hr sessions) or afternoon (2 hr session)
  • Other media group meetings:
    • Media WG, Audio WG, Timed Text WG, WebRTC WG, Audiovisual Media Formats for Browsers CG
  • Which joint meetings to organise?

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TPAC 2022 (for reference)

  • Monday:
    • WebRTC WG (3 hours)
    • Audio WG (2 hours)
  • Tuesday:
    • WebRTC WG (3 hours)
    • Audio WG (2 hours)
  • Wednesday:
    • Breakout sessions
    • Audio WG (2 hours)
  • Thursday:
    • MEIG (2 hours)
    • Audio WG (2 hours)
    • Audiovisual Media Formats for Browsers CG (1.5 hours)
    • WebRTC WG & Media WG (2 hours)
    • Timed Text WG (2 hours)
  • Friday:
    • Timed Text WG (3 hour)
    • Timed Text WG & Media WG (1 hour)
    • Second Screen WG (4 hours)
    • Media WG (4 hours)

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Thank you!