[wdmaudiodev] Re: Which audio driver model?
- From: Tim Roberts <timr@xxxxxxxxx>
- To: wdmaudiodev@xxxxxxxxxxxxx
- Date: Mon, 22 Sep 2008 18:03:25 -0700
Matt Gonzalez wrote:
>
> I have developed drivers using both PortCls and AVStream.
>
> AVStream is better for handling external hardware since it can handle
> surprise removal. It sounds like your solution is software only, so
> that doesn't matter.
>
> Of the two that I have used, AVStream is more flexible but harder to
> implement. There aren't any good sample drivers, so it's much harder
> to get started, especially if you don't have any experience with audio
> drivers. In addition, an AVStream audio driver has to implement quite
> a bit of the functionality that PortCls does for you.
Do think so? The "simple" MSVAD sample has about 15% more lines of code
than than AVStream "avssamp" sample, which implements both a video and
an audio pin.
I admit that I have done a lot of AVStream and not a lot of PortCls, but
I think I would have given exactly the opposite advice. Interesting.
--
Tim Roberts, timr@xxxxxxxxx
Providenza & Boekelheide, Inc.
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