Prepare new Media WG charter

[tidoust]

The current Media WG charter expires end of May 2021. For some reason, I thought we still had time to prepare a new charter. In practice, we need a new draft charter soon, ideally within the next couple of weeks, at worst end of March, so that we may run the rechartering process (horizontal reviews, review by W3C Management, and then review by W3C Members) before the charter expires (*).

The draft charter is in a separate repo. I prepared a pull request to prepare a possible starting point for a new charter: https://github.com/w3c/charter-media-wg/pull/13

The PR adds WebCodecs to the list of deliverables, and drops the mention of the persistent usage record session feature from the description of EME, as resolved by the group. No change in scope.

Some notes/questions:

• W3C process now allows groups to choose a Candidate Recommendation (with Snapshots) mode where specs remain at the CR phase and never advance to Recommendation (in other words, something close to a "living standard" mode). Does the group want that for some/all of its deliverables?
• Transition of Media Playback Quality to HTML is ongoing (see #17). Depending on how the process progresses in the next couple of months, we may be able to drop it from the list of deliverables.
• We discussed milestones back in December (see #22). I adjusted milestones as best as I could. Feedback welcome!
• Should the scope be adjusted, e.g. to be more explicit about WebCodecs?
• Status and URL may change for a few deliverables depending on whether the group manages to publish Candidate Recommendations and/or First Public Working Drafts of some of its deliverables in the upcoming months. I'll take care of that when needed.

(*) If the group needs more time, we may request a small extension to sort things out.

[tidoust]

I merged the PR mentioned in the previous comment.

A few useful links:

• Resulting draft charter
• Diff from current WG charter
• Related issue in W3C Strategy team repo to track horizontal reviews

[tidoust]

Status update: one issue to resolve to trigger review by W3C Management and then by the W3C Advisory Committee.

[tidoust]

Charter was reviewed by the W3C Advisory Committee, approved by W3C Management. New Media WG charter is now in place, linked from the group's home. Also see announcement

Due to the switch to the new Patent Policy, current group participants need to re-join the group, otherwise they will be kicked out of it in 45 days. I'm adding the agenda label to raise that particular point during next WG call, and closing the issue since group has now been rechartered.