[wdmaudiodev] Re: How to filter microphone voice?
- From: Tim Roberts <timr@xxxxxxxxx>
- To: wdmaudiodev@xxxxxxxxxxxxx
- Date: Mon, 29 Jun 2009 10:06:49 -0700
kevinrich47 wrote:
>
> Is there any code samples in DDK or other location?
There are a couple of sample KMDF filters in the WDK. There are no
kernel streaming filter samples, but there are really no new concepts
there. At its base, kernel streaming is just a standard set of ioctls.
It's the handling of those ioctls that is tricky.
There's a confusion in the terms as well. When I say "kernel streaming
filter" above, what I really mean is a "WDM filter driver in a kernel
streaming stack". The AVStream documentation talks about kernel
streaming drivers as being "filters", in the DirectShow sense. That's a
different use of the word.
--
Tim Roberts, timr@xxxxxxxxx
Providenza & Boekelheide, Inc.
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