API Reference

ID3D11VideoDevice::GetContentProtectionCaps

Syntax

HRESULT GetContentProtectionCaps(
  [in]  const GUID *pCryptoType,
  [in]  const GUID *pKeyUsageType,
  [out] D3D11_VIDEO_CONTENT_PROTECTION_CAPS *pCaps
);

Parameters

Parameter Description
pCryptoType Pointer to a GUID that specifies the crypto type. For example, D3D11_CRYPTO_TYPE_AES_128_CBC.
pKeyUsageType Pointer to a GUID that specifies the key usage type. For example, D3D11_KEY_USAGE_TYPE_EK_US.
pCaps Pointer to a D3D11_VIDEO_CONTENT_PROTECTION_CAPS structure that receives the content protection capabilities.

Return Value

Returns S_OK if successful; otherwise, returns an error code.

Remarks

This function retrieves the content protection capabilities for a given crypto type and key usage type. The capabilities include information about hardware acceleration for content protection operations, such as encryption, decryption, and data signing.

The D3D11_VIDEO_CONTENT_PROTECTION_CAPS structure provides details on various flags and limits related to content protection, including:

  • Reserved: Reserved for future use.
  • Caps: A bitmask of flags indicating supported content protection features.
  • ProtectedMemorySize: The maximum size of protected memory that can be allocated.
  • MaxGPUSatelliteHardwareID: The maximum number of GPU satellite hardware IDs that can be used.

You can use the information returned in the D3D11_VIDEO_CONTENT_PROTECTION_CAPS structure to determine if your application can perform the desired content protection operations and to configure them appropriately.

Requirements

Header d3d11.h
Library d3d11.lib

See Also