[PATCH] evr: Add stubs for EnhancedVideoRenderer

[Fabian Maurer]

Hi Alistair,

> >You mean for example the DirectShow interfaces like
> >"IAMCertifiedOutputProtection" "IMediaEventSink" and so on?
> 
> No, QI will also need to check for the following interfaces
> IMediaFilter, IPersist.
> 
> e.g.
> IBaseFilter -> IMediaFilter-> IPersist -> IUnknown

Right, I overlooked that, will add a check for those. Thanks for explaining.

On a sitenote, MSDN states that EnhancedVideoRenderer exposes a lot more 
interfaces than just IBaseFilter.

It's a similar issue with VideoMixingRenderer in quartz/vmr9.c:
> static const IUnknownVtbl IInner_VTable =
> {
>     VMR9Inner_QueryInterface,
>     VMR9Inner_AddRef,
>     VMR9Inner_Release
> };
Maybe I should rework it like that? Having one unknown interface that is only 
used to query all the other interfaces.

Regards,
Fabian Maurer