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ACXDRMRIGHTS structure (acxstreams.h)

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The ACXDRMRIGHTS structure specifies the DRM content rights assigned to an ACX audio pin or to a driver's stream object.

Syntax

typedef struct _ACXDRMRIGHTS {
  int   CopyProtect;
  ULONG Reserved;
  int   DigitalOutputDisable;
} ACXDRMRIGHTS, *PACXDRMRIGHTS;

Members

CopyProtect

Specifies one of the following copy-protection values:

TRUE Enables copy protection.

An audio application must not do the following:

  • Store the content in any form in any nonvolatile storage.

  • Pass the content by reference or by value to any other component within the host system that is not authenticated by the DRM system.

FALSE Disables copy protection. Content can be copied without restrictions.

Reserved

Reserved for future use. Initialize to zero.

DigitalOutputDisable

Specifies one of the following digital output protection values:

TRUE Disable digital outputs. A software component must not transfer the content out of the host system through any type of digital interface. Note that digital output protection does not affect USB devices because the host system includes USB devices.

FALSE Enables digital outputs. Content can be transferred from the host system to an external component without restrictions.

Remarks

If the driver supports DRMRIGHTS and also implements a proprietary copy protection mechanism, the driver must aggregate the result of the proprietary implementation with the values of CopyProtect and DigitalOutputDisable to determine the final copy protection state. The final copy protection state must be the most restrictive of all outstanding copy protection requests.

ACX requirements

Minimum ACX version: 1.0

For more information about ACX versions, see ACX version overview.

Requirements

Requirement Value
Header acxstreams.h

See also