MFCreateVideoMixer function
Creates the default video mixer for the enhanced video renderer (EVR).
Syntax
HRESULT MFCreateVideoMixer(
IUnknown *pOwner,
REFIID riidDevice,
REFIID riid,
void **ppVideoMixer
);
Parameters
- pOwner
-
Pointer to the owner of this object. If the object is aggregated, pass a pointer to the aggregating object's IUnknown interface. Otherwise, set this parameter to NULL.
- riidDevice
-
Interface identifier (IID) of the video device interface that will be used for processing the video. Currently the only supported value is IID_IDirect3DDevice9.
- riid
-
IID of the requested interface on the video mixer. The video mixer exposes the IMFTransform interface.
- ppVideoMixer
-
Receives a pointer to the requested interface. The caller must release the interface.
Return value
The function returns an HRESULT. Possible values include, but are not limited to, those in the following table.
| Return code | Description |
|---|---|
|
The function succeeded. |
Requirements
|
Minimum supported client |
Windows Vista [desktop apps only] |
|---|---|
|
Minimum supported server |
Windows Server 2008 [desktop apps only] |
|
Header |
|
|
Library |
|
|
DLL |
|
See also