// ks.h
void KsPinAcquireProcessingMutex(
[in] PKSPIN Pin
);
View the official Windows Driver Kit DDI referenceNo description available.
The KsPinAcquireProcessingMutex function acquires the processing mutex for the AVStream pin specified by Pin.
Pin [in]A pointer to the KSPIN structure for which to acquire the processing mutex.
For more information, see Mutexes in AVStream.