CBaseFilter.Run method
[The feature associated with this page, DirectShow, is a legacy feature. It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation. Those features have been optimized for Windows 10 and Windows 11. Microsoft strongly recommends that new code use MediaPlayer, IMFMediaEngine and Audio/Video Capture in Media Foundation instead of DirectShow, when possible. Microsoft suggests that existing code that uses the legacy APIs be rewritten to use the new APIs if possible.]
The Run method runs the filter. This method implements the IMediaFilter::Run method.
Syntax
HRESULT Run(
REFERENCE_TIME tStart
);
Parameters
-
tStart
-
Reference time corresponding to stream time 0.
Return value
Returns S_OK if successful, or an HRESULT value indicating the cause of the error.
Remarks
If the filter is stopped, this method pauses the filter by calling the CBaseFilter::Pause method. It then calls the CBasePin::Run method on each of the filter's connected pins. Finally, it sets the CBaseFilter::m_State member variable to State_Running.
Stream time is calculated as the current reference time minus tStart. A media sample with a time stamp of zero should be rendered at time tStart.
Requirements
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| Header |
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| Library |
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