MF_PD_ASF_CONTENTENCRYPTION_KEYID attribute
Specifies the key identifier for an encrypted Advanced Systems Format (ASF) file. This attribute corresponds to the Key ID field of the Content Encryption Header, defined in the ASF specification.
Data type
Wide-character string
Remarks
This attribute applies to presentation descriptors for ASF content.
The IMFASFContentInfo::GeneratePresentationDescriptor method retrieves the Key ID field, converts it into a wide-character string, and then populates a null-terminated array of WCHARs. The size of the array equals the Key ID Length field of the Content Encryption Header.
Requirements
Requirement | Value |
---|---|
Minimum supported client |
Windows Vista [desktop apps only] |
Minimum supported server |
Windows Server 2008 [desktop apps only] |
Header |
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See also