[Bug 25092] Need a way to inform script that resolution restrictions are applied

https://www.w3.org/Bugs/Public/show_bug.cgi?id=25092

--- Comment #8 from Mark Watson <watsonm@netflix.com> ---
(In reply to David Dorwin from comment #7)
> (In reply to Mark Watson from comment #6)
> > In my usecase, the streams could all have the same key. So informing the
> > application that a given key id cannot be used (without restrictions) won't
> > give the application sufficient information to take meaningful action.
> 
> This issue was raised during the April 1 telecon. The proposal is to use a
> fake key ID as a proxy for the policies you wish to check.

That's and additional and unnecessary requirement on the DRM - to support and
track multiple Key Ids. Presently there are DRM systems which do not support
multiple keys or key ids for the same session.

Alternatively, this whole question could be thought of one that applies more
generally to MSE rather than just EME. There may be reasons other than DRM
restrictions where the resolution / color depth / frame rate etc. of the output
is restricted (particularly, physical device capabilities) and the application
may be interested in knowing that it could optimize by switching to a different
stream without impacting the quality presented to the end-user.

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Received on Tuesday, 8 April 2014 21:25:25 UTC