System Reference Clock

The System Reference Clock object implements a reference clock that returns the system time. If none of the filters in the graph provides a reference clock, the filter graph manager uses this component to synchronize the graph. Create this object by calling CoCreateInstance.

Label Value
Class Identifier CLSID_SystemClock
Interfaces IAMClockAdjust, IReferenceClock, IReferenceClockTimerControl


DirectShow Objects

Reference Clocks

Time and Clocks in DirectShow