IMFTrackedSample interface (mfidl.h)

Tracks the reference counts on a video media sample. Video samples created by the MFCreateVideoSampleFromSurface function expose this interface.


The IMFTrackedSample interface inherits from the IUnknown interface. IMFTrackedSample also has these types of members:


The IMFTrackedSample interface has these methods.


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]
Target Platform Windows
Header mfidl.h

See also

Media Foundation Interfaces