MF_CAPTURE_ENGINE_ENCODER_MFT_FIELDOFUSE_UNLOCK_Attribute attribute
Enables the capture engine to use an encoder that has field-of-use restrictions.
Data type
IUnknown*
Remarks
The value of this attribute is a pointer to the IMFFieldOfUseMFTUnlock interface, implemented by the caller. The caller's implementation of this interface is expected to perform a handshake with the encoder, as described in Field of Use Restrictions. Microsoft Media Foundation does not define the handshake—typically, it would involve some sort of cryptographic exchange.
Internally, the capture engine sets the IMFFieldOfUseMFTUnlock pointer on the encoder by setting the encoder's MFT_FIELDOFUSE_UNLOCK_Attribute attribute.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client |
Windows 8 [desktop apps only] |
| Minimum supported server |
Windows Server 2012 [desktop apps only] |
| Header |
|
See also