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Transitions the filter from paused to running state if it is not in this state already.
HRESULT Run ( REFERENCE_TIME tStart );
Parameters
- tStart
- Reference time value corresponding to stream time 0.
Return Values
Returns an HRESULTvalue. The default implementation returns NOERROR.
Remarks
If the filter is in State_Stopped state, the CBaseFilter::Pausemethod is called first to transition the filter to State_Paused state, which has the effect of activating any of the filter's connected pins. If any pin returns a failure return code from its Activemethod, the function fails and the state is not changed. If this member function succeeds, the filter's m_Statemember variable is set to State_Running.
This member function holds the filter's lock.