Intent to Ship: EME MediaKeySession Closed Reason

[Xiaohan Wang (王消寒)]

Contact emails

xhw...@chromium.org

Explainer

https://github.com/w3c/encrypted-media/issues/473

Specification

https://w3c.github.io/encrypted-media/#dom-mediakeysessionclosedreason

Summary

A MediaKeySessionClosedReason is proposed to indicate the reason for EME MediaKeySession closure, and the closed attribute would return a Promise<MediaKeySessionClosedReason> instead of the current Promise<void>.

Blink component

Internals>Media>Encrypted

TAG review

According to the "intent to prototype" discussion the TAG review shouldn't be necessary for this small change. It's still requested though at https://github.com/w3ctag/design-reviews/issues/671 just in case.

TAG review status

Not applicable 

Risks

Interoperability and Compatibility

Gecko: "non-harmful and lack of further comments" on the Request for Position.

WebKit:  Support in W3C Media Working Group meeting. No response on the Request for Position.

Web developers: Supported and approved by Netflix's spec editor.

Debuggability

No DevTools changes are required, treated like any other attribute/enum.

Is this feature fully tested by web-platform-tests?

Yes (media/encrypted-media/encrypted-media-session-closed-event.html)

Flag name

EncryptedMediaSessionClosedReason (see CL)

Requires code in //chrome?

False

Tracking bug

https://crbug.com/1208618

Launch bug

https://crbug.com/1208618

Estimated milestones

M96

Link to entry on the Chrome Platform Status

https://www.chromestatus.com/feature/5632124143009792

Links to previous Intent discussions

Intent to prototype: https://groups.google.com/a/chromium.org/g/blink-dev/c/Vze-UnN9d3w

This intent message was generated by Chrome Platform Status.

[Yoav Weiss]

LGTM1

On Saturday, August 28, 2021 at 1:06:50 AM UTC+2 Xiaohan Wang wrote:

Contact emails

xhw...@chromium.org

Explainer

https://github.com/w3c/encrypted-media/issues/473

Specification

https://w3c.github.io/encrypted-media/#dom-mediakeysessionclosedreason

Summary

A MediaKeySessionClosedReason is proposed to indicate the reason for EME MediaKeySession closure, and the closed attribute would return a Promise<MediaKeySessionClosedReason> instead of the current Promise<void>.

Blink component

Internals>Media>Encrypted

TAG review

According to the "intent to prototype" discussion the TAG review shouldn't be necessary for this small change. It's still requested though at https://github.com/w3ctag/design-reviews/issues/671 just in case.

Can you mark the TAG review as an FYI? That way it won't be blocking here.

[Alex Russell]

LGTM2

[Chris Harrelson]

LGTM3

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[Xiaohan Wang (王消寒)]

Thank you all!