IMFVideoSampleAllocatorCallback interface
Enables an application to track video samples allocated by the enhanced video renderer (EVR).
The stream sinks on the EVR expose this interface as a service. To get a pointer to the interface, call the IMFGetService::GetService method, using the MR_VIDEO_ACCELERATION_SERVICE service identifier.
Members
The IMFVideoSampleAllocatorCallback interface inherits from the IUnknown interface. IMFVideoSampleAllocatorCallback also has these types of members:
Methods
The IMFVideoSampleAllocatorCallback interface has these methods.
| Method | Description |
|---|---|
| GetFreeSampleCount |
Gets the number of video samples that are currently available for use. |
| SetCallback |
Sets the callback object that receives notification whenever a video sample is returned to the allocator. |
Requirements
|
Minimum supported client |
Windows 7 [desktop apps | Windows Store apps] |
|---|---|
|
Minimum supported server |
Windows Server 2008 R2 [desktop apps | Windows Store apps] |
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Header |
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See also