IMFVideoSampleAllocatorCallback interface (mfidl.h)
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.
Inheritance
The IMFVideoSampleAllocatorCallback interface inherits from the IUnknown interface. IMFVideoSampleAllocatorCallback also has these types of members:
Methods
The IMFVideoSampleAllocatorCallback interface has these methods.
| IMFVideoSampleAllocatorCallback::GetFreeSampleCount Gets the number of video samples that are currently available for use. |
| IMFVideoSampleAllocatorCallback::SetCallback Sets the callback object that receives notification whenever a video sample is returned to the allocator. |
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows 7 [desktop apps | UWP apps] |
| Minimum supported server | Windows Server 2008 R2 [desktop apps | UWP apps] |
| Target Platform | Windows |
| Header | mfidl.h |