When the output is connected, it might discover that, to please both its upstream and downstream connections, it would have been better to have chosen a different media type for the upstream connection. The solution is to reconnect the input pin. Interface Removes a filter from the graph. Null pointer argument. Method isn' t supported.
Interface Sets the default source of synchronization.
Null pointer argument. Method isn't supported. This method is used when no clock has been given to the filter graph, and the filter graph manager must find a clock to use as the synchronization source. The filter graph manager tries all connected filters, starting with renderers, and selects the first one that provides an IReferenceClock interface. If no connected filters are found, the filter graph manager will select an unconnected filter that exports a clock.