Enables other components in the protected media path (PMP) to use the input protection system provided by an input trust authorities (ITA). An ITA is a component that implements an input protection system for media content. ITAs expose the IMFInputTrustAuthority interface.
An ITA translates policy from the content’s native format into a common format that is used by other PMP components. It also provides a decrypter, if one is needed to decrypt the stream.
The topology contains one ITA instance for every protected stream in the media source. The ITA is obtained from the media source by calling IMFTrustedInput::GetInputTrustAuthority.
interface IMFInputTrustAuthority : public IUnknown
Header: Declared in mfidl.h.
Library: Use mfuuid.lib.