[wdmaudiodev] Re: WavePCI issue with multiple processors

  • From: Eugene Muzychenko <emuzychenko@xxxxxxxxx>
  • To: Ken Cooper <wdmaudiodev@xxxxxxxxxxxxx>
  • Date: Tue, 27 Mar 2007 15:26:04 +0700

Hello Ken,

> I don't have the code in front of me at the moment but I'll take a
> closer look tomorrow at the portcls and WDK sample code

Could you please take a look to a portcls code that implements stream
state transitions?

Testing my driver under Vista RTM, I noticed that sometimes
a rendering IMiniportWavePciStream object is released (a destructor is called)
when the stream is in KSSTATE_PAUSE. It happens only if I open an
endpoint properties, select "Advanced" tab and click "Test" button,
not every time but very often, and never happens on common audio
processing, when DirectSound/MME are used.

I already wrote about this:




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