Memory access violation if all I do is: "mNVAudioManager = [Novocaine audioManager]"

[casbreuk]

The only thing I do with Novocaine in my current iOS project is:
mNVAudioManager = [Novocaine audioManager];"

I have commented out all other code that would try to use the audio manager / novocaine functions.

It crashes with a memory access violation in novocaine::inputCallback(), on the second line:

if( !sm.playing ) <-- memory access violation

I am using ARC. Disabled ARC for all Novocaine files. .mm file extensions for files using Novocaine.
Compiler set to ObjectiveC++.
No compiler errors or warnings.

[casbreuk]

I got around this by changing the first line of novocaine::inputCallback() and novocaine::outputCallback() functions as follows:
Novocaine *sm = [Novocaine audioManager]; //(Novocaine *)inRefCon;

It seems like the inRefCon pointer was ... forgotten. Some of the other parameters still look correct - not sure about the data though. I get this weird super high pitched warbling sound playing all the time, now.

[alexbw]

Whoa, that sounds totally weird. I've never ever seen that before. What device are you using?

On Aug 24, 2012, at 2:39 PM, Corey wrote:

I got around this by changing the first line of novocaine::inputCallback() and novocaine::outputCallback() functions as follows:
Novocaine *sm = [Novocaine audioManager]; //(Novocaine *)inRefCon;

It seems like the inRefCon pointer was ... forgotten. Some of the other parameters still look correct - not sure about the data though. I get this weird super high pitched warbling sound playing all the time, now.

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[casbreuk]

iTouch4. The Simulator gives the -50 output error.
I discovered the root of the issue though - I must have inadvertently changed something when going through the first time to fix compiler warnings. I thought I had undone every change I had made to the file after adding the flags to disable arc and changing the compiler to ObjC++. I reverted the novocaine.m file, and it runs fine now.

Still having the weird feedback issue though - listening with the mic makes a lot of very high pitched loud noise (like speaker/mic feedback). I'll probably just have to play with the in/out blocks to see what is going on.