RE: Audio Units - newbie questions
RE: Audio Units - newbie questions
- Subject: RE: Audio Units - newbie questions
- From: "Muon Software Ltd - Dave" <email@hidden>
- Date: Tue, 11 Oct 2005 08:16:09 +0100
- Importance: Normal
Bill
Thanks for your response, my comments in the text below:-
> I'd probably just create the AU with the 4 outputs, all stereo, and
> leave it at that. You should then also accept a mono or stereo output
> on any of the outputs.
So in the constructor I pass in 0 inputs, 4 outputs, and leave it at that?
do I need to check what outputs and buffers I have been given in Render? do
you have any example code I could look at for that?
> That's incorrect - it calls Initialize everywhere - You can easily
> see this if you use the DebugDispatcher AU in the SDK and run it
> through auval.
It isn't hitting breakpoint in Initialize, and my implementation sets a bool
flag to say it has been called which I evaluate in Reset and other
functions. This flag is false during the first call to Initialize.
> That's not mandatory. In fact, all of the mandatory properties are
> fully supported in AUBase, so subclasses are only required to
> support the features that they want to add.
Where are the Apple-defined properties (<64000) documented?
> GetParameterValueStrings is designed to provide support for indexed
> parameters where each param value is a string - in a generic view
> this allows the parameter to be represented as a menu list.
Which I guess is why it returns an array, understood.
> Then we added generic values/strings services - that would also allow
> just some specific values to have strings, otherwise its a literal
> translation - for instance, a dB parameter where values below -120dB
> should be presented as -inf
OK - since the underlying code is shared with a VSTi I'll stick to the value
strings I understand. I'll have more questions about parameters later no
doubt!
> optional
Are scheduled parameters and slice based rendering easy to implement if I
did decide I wanted to go there? any example code around?
Regards
Dave
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