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Re: N-M processing again (sorry)
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Re: N-M processing again (sorry)


  • Subject: Re: N-M processing again (sorry)
  • From: William Stewart <email@hidden>
  • Date: Thu, 13 Jul 2006 12:42:00 -0700

Does your au pass the auvalidation process and correctly report these channel capabilities?

% auval -v ...

There's a readme for auval in /Developer/Examples/CoreAudio

Bill

On 13/07/2006, at 9:27 AM, James Closs wrote:

Hi,

Still struggling with this, sorry - I know it's been covered before, and I have tried the archived and docs. It doesn't help that I'm also new to C++.

After trawling the archives I've come up with the following to publish config info about my AU:

UInt32 AUStub::SupportedNumChannels ( const AUChannelInfo** outInfo )
{
	static AUChannelInfo config[] = { {1, 1}, {1, 2}, {2, 2} };
	if (outInfo != NULL)
	{
		*outInfo = config;
	}
	// return number of configs
	return 3;
}

This is getting called OK, but the AU still isn't showing up as a mono->stereo component in AULab. I know I need to override AUEffectBase::ProcessBufferLists() as well to get anything to actually work, but shouldn't the AU at least show up in the list without this (even if it fails to function correctly)?

What else do I need to do just to get my AU to show up as a mono- >stereo component?

Any help appreciated. I was getting along fine but this issue has really bogged me down.

====

James Closs, Director, bitBull Ltd

http://www.bitbull.com

07771 991171

====

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