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Re: Identifying AUs from host?
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Re: Identifying AUs from host?


  • Subject: Re: Identifying AUs from host?
  • From: Stefan Gretscher <email@hidden>
  • Date: Wed, 17 Aug 2011 02:49:13 +0200

Am 11.08.2011 um 17:06 schrieb George Taylor:
> I'm having trouble finding information on the correct way a host should identify and recall an AU from a saved project. If an AU undergoes a major revision from "v1" to "v2" and I still want v2 to load seamlessly when opening all projects saved with v1, what's the standard way hosts should identify an AU when loading a project? Is it with data from the AudioComponentDescription? Or with CAComponent::GetAUName()? Or is there one?

I assume that by "major revision" you're talking about a transition where the identifiers for the AU (type, subtype, manufacturer) are changed?
In that case, have a look at kAudioUnitMigrateProperty_FromPlugin - this allows v2 to tell the host that it understands settings written by a v1.

Kind regards,
Stefan

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