Host Audio Units

General JUCE discussion
1

Is it possible to host Audio Units in Juce.
We have an application that loads VST plugins succesfully but it doesn’t seem to load Audio Units, i thought the format was supported.
Your pluginHost doesn’t load them either.
I thought i had it working a while ago so i can’t figure out whether that was just a dream or it never actually worked.

Cheers
Edwin

2

Yes, the code’s there - juce_AudioUnitPluginFormat.cpp. There might be a few incompatibilities, but it’s definitely working. Did you set the JUCE_PLUGINHOST_AU flag before building?

3

HI Jules,
yes the flag is set.
Juce tries to load the file but it fails when it tries to find the compoent.

ComponentRecord* const comp = FindNextComponent (0, &componentDesc);
in

[code]AudioUnitPluginInstance::AudioUnitPluginInstance (const File& file_)
: file (file_),
initialised (false),
wantsMidiMessages (false),
audioUnit (0),
outputBufferList (0),
currentBuffer (0)
{
try
{
++insideCallback;

    log (T("Opening AU: ") + file.getFullPathName());

    if (getComponentDescFromFile (file))
    {
        ComponentRecord* const comp = FindNextComponent (0, &componentDesc);

        if (comp != 0)
        {
            audioUnit = (AudioUnit) OpenComponent (comp);

            wantsMidiMessages = componentDesc.componentType == kAudioUnitType_MusicDevice
                || componentDesc.componentType == kAudioUnitType_MusicEffect;
        }
    }

    --insideCallback;
}
catch (...)
{
    --insideCallback;
}

}[/code]
Comp is allways null
I tried a couple different Audio Units, but none has been loaded so far.

4

hmm… My mac build is all broken at the moment due to me doing the Cocoa rewrite, but I’ll take a look at this soon (there’s some Carbon code in that class that I’ll need to sort out anyway)

5

Hi,
If you if have time to have a look that would be nice.
thx
Edwin