OPM Protection Type Flags

The flags in the following table specify output protection mechanisms for Output Protection Manager (OPM).

Constant/value	Description
OPM_PROTECTION_TYPE_OTHER 0x80000000	Unknown protection mechanism.
OPM_PROTECTION_TYPE_NONE 0x00000000	No protection mechanisms.
OPM_PROTECTION_TYPE_COPP_COMPATIBLE_HDCP 0x00000001	High-Bandwidth Digital Content Protection (HDCP). This flag is used when emulating Certified Output Protection Protocol (COPP). For more information, see Remarks. This flag is not supported for OPM semantics.
OPM_PROTECTION_TYPE_ACP 0x00000002	Analog Copy Protection (ACP).
OPM_PROTECTION_TYPE_CGMSA 0x00000004	Copy Generation Management System—Analog (CGMS-A).
OPM_PROTECTION_TYPE_HDCP 0x00000008	HDCP. This flag is used when the OPM object has OPM semantics. It is not supported for COPP semantics.
OPM_PROTECTION_TYPE_DPCP 0x00000010	DisplayPort Content Protection (DPCP).

Remarks

These flags are used in the following OPM commands and status requests.

• OPM_SET_PROTECTION_LEVEL
• OPM_GET_VIRTUAL_PROTECTION_LEVEL
• OPM_GET_ACTUAL_PROTECTION_LEVEL

HDCP

The following two flags are defined for HDCP.

Value	Description
OPM_PROTECTION_TYPE_HDCP	Use this flag if the IOPMVideoOutput pointer was created with OPM semantics.
OPM_PROTECTION_TYPE_COPP_COMPATIBLE_HDCP	Use this flag if the IOPMVideoOutput pointer was created with COPP semantics. This flag corresponds to the COPP_ProtectionType_HDCP flag in COPP.

 

Both modes (OPM semantics and COPP semantics) support the following operations for HDCP:

• Enable or disable HDCP by using the OPM_SET_PROTECTION_LEVEL command.
• Query whether HDCP is enabled by using the OPM_GET_VIRTUAL_PROTECTION_LEVEL or OPM_GET_ACTUAL_PROTECTION_LEVEL status request.

OPM semantics also support the following:

• HDCP repeaters. An HDCP repeater is an HDCP device that can receive HDCP content and also re-encrypt and transmit the same content.
• HDCP revocation. If a revoked HDCP device is attached to the OPM video output, the video output will not transmit the video. The application does not need to parse HDCP system renewability messages (SRMs) or determine whether the output device has been revoked. For more information, see the OPM_SET_HDCP_SRM command.

When COPP semantics are used, the IOPMVideoOutput interface does not support HDCP repeaters. Also, it does not handle HDCP revocation. Instead, the application must parse the SRM to determine whether an HDCP device has been revoked.

Requirements

Requirement	Value
Minimum supported client	Windows Vista [desktop apps only]
Minimum supported server	Windows Server 2008 [desktop apps only]
Header	Opmapi.h

See also

OPM Enumerations