[wdmaudiodev] Re: GetMapping VirtualAddress

  • From: Matt Gonzalez <matt@xxxxxxxxxxxxx>
  • To: wdmaudiodev@xxxxxxxxxxxxx
  • Date: Tue, 27 Jun 2006 22:51:13 -0700

The VirtualAddress parameter does point to the audio data; I've used that parameter myself to access and preprocess the audio data directly.

Matt


bollinger@xxxxxxxx wrote:
Hello!

In my WavePCI driver I tried to debug the audio data coming from GetMapping().
I accessed the VirtualAddress = kernel-mode virtual-memory address of the mapping.


As I wondered about the contents of the audio data I tried to RtlZeroMemory the data
with no result : the original file is played.
Is this a cashing problem or where does the VirtualAddress point to ?


Markus.

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