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Re: Two AUs in one bundle
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Re: Two AUs in one bundle


  • Subject: Re: Two AUs in one bundle
  • From: ipmlists <email@hidden>
  • Date: Wed, 26 Aug 2009 14:32:55 +0100



2009/8/25 William Stewart <email@hidden>

On Aug 24, 2009, at 5:09 AM, ipmlists wrote:

I'd like to combine two AUs into one bundle, so they're launched together, and both are controlled from one Cocoa view. From searching the archives, I _think_ this is possible, (this thread, for example: <http://lists.apple.com/archives/Coreaudio-api/2008/May/msg00108.html> and the earlier one it refers to) but it would be nice to get that confirmed.

If so, then how do I specify their connectivity -  by bundling them inside an AUGraph inside an AU?

All that a host sees is the audio unit that you publish. How you manage the internal state is up to you - it can be as simple or complex a chain as you need

Bill

Thanks Bill. I'm afraid I'm still confused as to the plumbing of this. I now have a third AU, which contains in its constructor the AUGraph  setup code (the graph is MyAU1 -> MyAU2 -> Generic I/O AU). What about input/output? For the output, is it just a matter of making sure the stream formats of my 'container' AU and the I/O AU match?

I'm guessing I then need to override ProcessBufferLists, but again, I'm not sure how...

Any further hints gratefully received :)

thanks again

Iain

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