Re: Presets etc.
Re: Presets etc.
- Subject: Re: Presets etc.
- From: Pavol Markovic <email@hidden>
- Date: Tue, 27 Apr 2004 21:36:43 +0200
I've just realized I'd answered the Michael's second question.
I also like Urs' solution to this... he ships a bunch of user presets
that you load into the correct location:
~ or / Library/Audio/Presets/u-he/Zebra
and a host that is managing user presets correctly will find these
presets...
But this works for AU plugins only. Imagine you have multiple formats
(VST, RTAS) and you share presets among them. It's too cruel to have
different preset formats in different locations - mainly from user
point of view.
PM
On 27.4.2004, at 21:01, William Stewart wrote:
These are different... The Present Preset is the name (and number for a
factory preset) of whatever the current state of the AU is if it were
to be saved.
Factory Presets are a list of presets that you deliver to the
application/host as a set of settings the user can apply to your AU...
Our intention with Factory Presets is that these are fairly static
(think of patches in a ROM bank on a Synth)... So, I don't believe that
host's should really be required to adapt to any AU arbitrarily
changing these. Its also a different property... The docs are I think
reasonably complete when describing how this works
(Developer/Documentation/CoreAudio/AudioUnits)
I also like Urs' solution to this... he ships a bunch of user presets
that you load into the correct location:
~ or / Library/Audio/Presets/u-he/Zebra
and a host that is managing user presets correctly will find these
presets...
Bill
On 27/04/2004, at 7:46 AM, Pavol Markovic wrote:
For notifying host I use this in AUBase subclass:
PropertyChanged(kAudioUnitProperty_PresentPreset,
kAudioUnitScope_Global, 0);
PropertyChanged(kAudioUnitProperty_CurrentPreset,
kAudioUnitScope_Global, 0); // deprecated
But works only in Rax... as I've tested...
PM
On 27.4.2004, at 15:13, Michael Kleps [reFX] wrote:
Hi all,
when loading my AU, Logic asks for a list of AUPresets in
"GetPresets"
and I provide a list of 128 AUPresets. Works fine. I can choose a
preset from within Logic.
But how can I notify Logic that this list has changed? (new presets
have been loaded by a plugin internal function).
And how can I tell the host that the user selected another preset
(out
of the 128 list). I can select one of the 128 presets with Logic, but
if the users uses e.g. a program-change I would like to notify Logic
that the current preset changed. I tried:
DispatchSetProperty (kAudioUnitProperty_CurrentPreset,
kAudioUnitScope_Global, 0, &AU_Presets[i], sizeof (AUPreset));
DispatchSetProperty (kAudioUnitProperty_PresentPreset,
kAudioUnitScope_Global, 0, &AU_Presets[i], sizeof (AUPreset));
SetAFactoryPresetAsCurrent(AU_Presets[i]);
AU_Preset is an array of 128 "AUPreset"s.
"i" is the current preset-number.
I call all three functions (just to make sure) but Logic doesn't
update it's display to reflect the change.
Do I make any sense? Should I give up and lie to the host by telling
him I have no presets, so the list isn't even displayed and so the
user is forced to use my plugins internal preset-management? The
downside would be that I would be forced to put in my own
preset-management into every plugin I want to release as an
AudioUnit...
Hope somebody can help me.
Cheers,
Mike
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