IMFInputTrustAuthority Interface
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.
Mitglieder
IMFInputTrustAuthoritySchnittstelle erbt von der IUnknown-Schnittstelle. IMFInputTrustAuthority umfasst auch die folgenden Typen von Mitgliedern:
- Methoden
Methoden
IMFInputTrustAuthoritySchnittstelle umfasst die folgenden Methoden.
| Methode | Beschreibung |
|---|---|
| BindAccess | Notifies the ITA that a requested action is about to be performed. |
| GetDecrypter | Retrieves a decrypter transform. |
| GetPolicy | Retrieves the policy that defines which output protection systems are allowed for this stream, and the configuration data for each protection system. |
| RequestAccess | Requests permission to perform a specified action on the stream. |
| Reset | Resets the ITA to its initial state. |
| UpdateAccess | Notifies the ITA when the number of output trust authorities (OTAs) that will perform a specified action has changed. |
Anforderungen
Mindestens unterstützter Client |
Windows Vista |
Mindestens unterstützter Server |
Windows Server 2008 |
Header |
Mfidl.h |
Bibliothek |
Mfuuid.lib |