Hey folks,

On reviewing this, I'm concerned that this isn't also addressing the same 
needs for Audio. This would have come up in a TAG review, and probably 
would have been fleshed out in an Explainer. Would like to see those before 
this progresses.

Best,

Alex

On Tuesday, April 30, 2024 at 3:35:45 PM UTC-7 dan...@microsoft.com wrote:

> I was curious about WPT coverage for this and found 
> https://wpt.fyi/results/mediasession/mediametadata.html 
>
>  
>
> Maybe that could be updated to check for the basics of the new attribute?
>
>  
>
> -- Dan
>
>  
>
> *From:* 'Jiaming Cheng' via blink-dev <blink-dev@chromium.org> 
> *Sent:* Tuesday, April 30, 2024 1:50 PM
> *To:* blink-dev@chromium.org
> *Cc:* Alex Newcomer <newco...@google.com>; Megan Fu <megan...@google.com>; 
> Tommy Steimel <stei...@google.com>; Andrew Xu <andre...@google.com>
> *Subject:* [blink-dev] Intent to Ship: Support Video Chapter in 
> MediaMetadata
>
>  
> Contact emails 
>
> jiami...@google.com
>
>
> Explainer 
>
> https://github.com/w3c/mediasession/pull/308
>
>
> Specification 
>
> https://www.w3.org/TR/mediasession/#the-chapterinformation-interface
>
>
> Summary 
>
> The corresponding implementation on the blink layer based on the w3c api 
> change, which is to add the `ChapterInformation` attribute in the existing 
> `MediaMetadata` See the propose: 
> https://github.com/w3c/mediasession/issues/273
>
>
>
>
> Blink component 
>
> Blink>Media>Session 
> <https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EMedia%3ESession>
>
>
> TAG review 
>
> None
>
>
> TAG review status 
>
> Not applicable
>
>
> Risks 
>
>
>
>
> Interoperability and Compatibility 
>
> It’s low risk as it's a small addition to an existing API that both Gecko 
> and WebKit approve of
>
>
>
> *Gecko*: No signal
>
> *WebKit*: No signal
>
> *Web developers*: No signals
>
> *Other signals*:
>
>
> WebView application risks 
>
> *Does this intent deprecate or change behavior of existing APIs, such that 
> it has potentially high risk for Android WebView-based applications?*
>
> None
>
>
>
>
> Debuggability 
>
> None
>
>
>
>
> Will this feature be supported on all six Blink platforms (Windows, Mac, 
> Linux, ChromeOS, Android, and Android WebView)? 
>
> No
>
>
> Is this feature fully tested by web-platform-tests 
> <https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>
> ? 
>
> No
>
>
> Flag name on chrome://flags 
>
> MediaSessionChapterInformation
>
>
> Finch feature name 
>
> None
>
>
> Non-finch justification 
>
> None
>
>
> Requires code in //chrome? 
>
> False
>
>
> Sample links 
>
>
> https://googlechrome.github.io/samples/media-session/video.html
>
>
> Estimated milestones 
>
> Shipping on desktop
>
> 126
>
>  
>
>  
>
>  
>
>
>
>
> Anticipated spec changes 
>
> *Open questions about a feature may be a source of future web compat or 
> interop issues. Please list open issues (e.g. links to known github issues 
> in the project for the feature specification) whose resolution may 
> introduce web compat/interop risk (e.g., changing to naming or structure of 
> the API in a non-backward-compatible way).*
>
> None
>
>
> Link to entry on the Chrome Platform Status 
>
> https://chromestatus.com/feature/6682585059295232?gate=5003115407605760
>
> This intent message was generated by Chrome Platform Status 
> <https://chromestatus.com/>.
>
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>  
> <https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CABE8buQTGirUaRRsr9ooud9S%3Dg0OquQy6rGy%2BvnrDtT7T%2BqK%2BQ%40mail.gmail.com?utm_medium=email&utm_source=footer>
> .
>

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