IMFInputTrustAuthority interface (mfidl.h)

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.

Inheritance

The IMFInputTrustAuthority interface inherits from the IUnknown interface. IMFInputTrustAuthority also has these types of members:

Methods

The IMFInputTrustAuthority interface has these methods.

IMFInputTrustAuthority::BindAccess Notifies the input trust authority (ITA) that a requested action is about to be performed.
IMFInputTrustAuthority::GetDecrypter Retrieves a decrypter transform.
IMFInputTrustAuthority::GetPolicy Retrieves the policy that defines which output protection systems are allowed for this stream, and the configuration data for each protection system.
IMFInputTrustAuthority::RequestAccess Requests permission to perform a specified action on the stream.
IMFInputTrustAuthority::Reset Resets the input trust authority (ITA) to its initial state.
IMFInputTrustAuthority::UpdateAccess Notifies the input trust authority (ITA) when the number of output trust authorities (OTAs) that will perform a specified action has changed.

Requirements

Requirement	Value
Minimum supported client	Windows Vista [desktop apps | UWP apps]
Minimum supported server	Windows Server 2008 [desktop apps | UWP apps]
Target Platform	Windows
Header	mfidl.h

See also

Media Foundation Interfaces