CBaseRenderer.OnWaitStart 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 It has been superseded by MediaPlayer, IMFMediaEngine, and Audio/Video Capture in Media Foundation.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 OnWaitStart method is called when the filter starts waiting for a sample's presentation time.
virtual void OnWaitStart();
This method has no parameters.
This method does not return a value.
The CBaseRenderer::WaitForRenderTime method calls this method when it begins waiting for a sample's presentation time. This method does not do anything in the base class, but the derived class can override it.
If you are implementing quality control, you might override this method along with the CBaseRenderer::OnWaitEnd method. You can use these methods to track the filter's performance.
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