|Microsoft DirectX 9.0|
The Stop method stops the filter. This method implements the IMediaFilter::Stop method.
Returns S_OK if successful, or an HRESULT value indicating the cause of the error.
This method calls the CBasePin::Inactive method on each of the filter's connected pins. It also sets the filter's state to State_Stopped.
When the filter stops, it should reject samples from upstream, stop delivering samples downstream, shut down worker threads, and free any resources that it used for streaming.