// ks.h

PUNKNOWN KsFilterFactoryGetOuterUnknown(
  [in] PKSFILTERFACTORY FilterFactory
);
View the official Windows Driver Kit DDI reference

NtDoc

No description available.

Windows Driver Kit DDI reference (nf-ks-ksfilterfactorygetouterunknown)

The KsFilterFactoryGetOuterUnknown function returns the outer IUnknown of the specified filter factory.

A pointer to a KSFILTERFACTORY for which to return the outer unknown interface.

KsFilterFactoryGetOuterUnknown returns the outer IUnknown of FilterFactory. The minidriver can then use it to query for other interfaces.

This call is an inline function call to KsGetOuterUnknown.

For more information, see AVStream Overview