Tracks the reference counts on a video media sample. Video samples created by the MFCreateVideoSampleFromSurface function expose this interface.
The IMFTrackedSample interface has these methods.
|IMFTrackedSample::SetAllocator||Sets the owner for the sample.|
Use this interface to determine whether it is safe to delete or re-use the buffer contained in a sample. One object assigns itself as the owner of the video sample by calling SetAllocator. When all objects release their reference counts on the sample, the owner's callback method is invoked.
|Minimum supported client||Windows Vista [desktop apps | UWP apps]|
|Minimum supported server||Windows Server 2008 [desktop apps | UWP apps]|