MF_SA_D3D_AWARE attribute

Specifies whether a Media Foundation transform (MFT) supports DirectX Video Acceleration (DXVA). This attribute applies only to video MFTs.

Data type

BOOL stored as UINT32

Syntax

DECLSPEC_SELECTANY GUID MF_SA_D3D_AWARE = {0xeaa35c29,0x775e,0x488e,{0x9b,0x61,0xb3,0x28,0x3e,0x49,0x58,0x3b} }  

Remarks

To query this attribute, call IMFTransform::GetAttributes to get the global attribute store of the MFT. If IMFTransform::GetAttributes succeeds, call IMFAttributes::GetUINT32.

This attribute tells the client whether the MFT can use Direct3D 9 video:

• If the attribute is nonzero, the client can give the MFT a pointer to the IDirect3DDeviceManager9 interface before streaming starts. To do so, the client sends the MFT_MESSAGE_SET_D3D_MANAGER message to the MFT. The client is not required to send this message.
• If this attribute is zero (FALSE), the MFT does not support Direct3D 9 video, and the client should not send the MFT_MESSAGE_SET_D3D_MANAGER message to the MFT.

The default value of this attribute is FALSE. Treat this attribute as read-only. Do not change the value; the MFT will ignore any changes to the value.

For more information about implementing this attribute in a custom MFT, see Direct3D-Aware MFTs.

The GUID constant for this attribute is exported from mfuuid.lib.

Requirements

Header: Declared in mftransform.h.