Re: HostCallback_GetBeatAndTempo howto?
Re: HostCallback_GetBeatAndTempo howto?
- Subject: Re: HostCallback_GetBeatAndTempo howto?
- From: Bill Stewart <email@hidden>
- Date: Mon, 14 Oct 2002 12:27:55 -0700
Good point - will amend appropriately:)
Bill
on 14/10/02 5:56 AM, Marc Poirier wrote:
>
Franck. You actually don't have to do anything about setting up the
>
callback if you derive from AUBase (which you probably do). It is set up
>
for you automatically (if the host supports it) in
>
AUBase::DispatchSetProperty. The data is stuffed into the AUBase member
>
HostCallbackInfo variable called mHostCallbackInfo. All you need to do is
>
check that mHostCallbackInfo.beatAndTempoProc is not null before using it
>
and, if it is not, then you can call that function.
>
>
Personally I think that this is something that would be good to document
>
in the SDK. Actually, I think that a more general mention in the SDK of
>
that fact that Audio Units themselves don't have to worry about hardly any
>
of the AUProperties, because AUBase handles most of them in
>
Dispatch*Property, would be very good to mention in the SDK...
>
>
Marc
>
>
>
>
On Mon, 14 Oct 2002, Franck STAUFFER wrote:
>
>
> Hello,
>
>
>
> I'm trying to get tempo informations in my AudioUni codet...but I don't
>
> manage to make it work. Could someone explain me the basics steps to
>
> achieve that?
>
> From what I understand I need to create a callback in my code and then
>
> to make it point to the beatAndTempoProc of the host. No luck
>
> yet...could someone give me a basic example or step by step
>
> instructions?
>
> I'm more into pure DSP coding so actually I'm not sure I understand how
>
> to implement this..
>
>
>
> Thanks a lot and sorry for those "newbie" questions,
>
>
>
> Franck
>
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