Note
Access to this page requires authorization. You can try signing in or changing directories.
Access to this page requires authorization. You can try changing directories.
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 |