Support for Media Session API

[thijstriemstra]

With the Media Session API, you can now customize media notifications by providing metadata for the media your web app is playing. It also allows you to handle media related events such as seeking or track changing which may come from notifications or media keys.

I basically want to be able to control a videojs-wavesurfer instance from the notification area of my android phone.

See https://developers.google.com/web/updates/2017/02/media-session

[thijstriemstra]

wavesurfer.js has a media session plugin since 1.3.4 but unfortunately it only works with the MediaElement backend which is incompatible with this plugin. It should work with the regular webaudio backend as soon as browsers add support for media session + webaudio.

From docs:

As the Web Audio API doesn't request Android Audio Focus for historical reasons, the only way to make it work with the Media Session API is to hook up an element as the input source to the Web Audio API. Hopefully, the proposed Web AudioFocus API will improve the situation in the near future.

Also see https://wicg.github.io/audio-focus/explainer.html