Re: RemoteIO vs AUGraphAddNode on iOS
Re: RemoteIO vs AUGraphAddNode on iOS
- Subject: Re: RemoteIO vs AUGraphAddNode on iOS
- From: Aran Mulholland <email@hidden>
- Date: Thu, 10 Nov 2011 16:55:06 +1100
are you trying to create two remoteIO nodes in the same graph? The call here
// delay unit
CAComponentDescription delay_desc(kAudioUnitType_Output,
kAudioUnitSubType_RemoteIO, kAudioUnitManufacturer_Apple);
has kAudioUnitType_Output as the type and kAudioUnitSubType_RemoteIO
as the sub type. Is that what you want?
What is the problem? why doesn't it "work"?
On Thu, Nov 10, 2011 at 3:24 PM, Patrick Shirkey
<email@hidden> wrote:
> Hi,
>
> I asked Apple Developer Support and they [c/w]ouldn't provide an answer
> for me
>
> Can anyone tell me why this code works:
>
> ----------
>
> AUNode outputNode;
>
> // create a new AUGraph
> result = NewAUGraph(&mGraph);
> if (result) { printf("NewAUGraph result %ld X %4.4s\n", result,
> (unsigned int)result, (char*)&result); return; }
>
> // output unit
> CAComponentDescription output_desc(kAudioUnitType_Output,
> kAudioUnitSubType_RemoteIO, kAudioUnitManufacturer_Apple);
>
> result = AUGraphAddNode(mGraph, &output_desc, &outputNode);
> if (result) { printf("AUGraphNewNode 1 result %lu %4.4s\n", result,
> (char*)&result); return; }
>
>
> -----------
>
> But this code doesn't:
>
> -----------
>
> AUNode outputNode;
> AUNode delayNode;
>
> // create a new AUGraph
> result = NewAUGraph(&mGraph);
> if (result) { printf("NewAUGraph result %ld X %4.4s\n", result,
> (unsigned int)result, (char*)&result); return; }
>
> // output unit
> CAComponentDescription output_desc(kAudioUnitType_Output,
> kAudioUnitSubType_RemoteIO, kAudioUnitManufacturer_Apple);
>
> // delay unit
> CAComponentDescription delay_desc(kAudioUnitType_Output,
> kAudioUnitSubType_RemoteIO, kAudioUnitManufacturer_Apple);
>
> result = AUGraphAddNode(mGraph, &output_desc, &outputNode);
> if (result) { printf("AUGraphNewNode 1 result %lu %4.4s\n", result,
> (char*)&result); return; }
>
> result = AUGraphAddNode(mGraph, &delay_desc, &delayNode);
> if (result) { printf("AUGraphNewNode 2 result %lu %4.4s\n", result,
> (char*)&result); return; }
>
> ---------
>
>
>
>
> --
> Patrick Shirkey
> Boost Hardware Ltd
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