openframeworks audio pasthrough

ofApp.cpp

#include "ofApp.h"

//--------------------------------------------------------------
void ofApp::setup(){
	
    int bufferSize = 256;
    
    ofSoundStreamSetup(2, 2, this, 44100, bufferSize, 4);
}

//--------------------------------------------------------------
void ofApp::update(){
}

//--------------------------------------------------------------
void ofApp::draw(){
	
}
//--------------------------------------------------------------
void ofApp::audioIn(ofSoundBuffer & buffer){
 ofScopedLock lock(audioMutex);
 
    this->buffer = buffer;

}
//--------------------------------------------------------------
void ofApp::audioOut( ofSoundBuffer& buffer ){
    ofScopedLock lock(audioMutex);

    this->buffer.copyTo(buffer);
}

ofApp.h

#pragma once

#include "ofMain.h"

class ofApp : public ofBaseApp{
    
public:
    
    void setup();
    void update();
    void draw();
    void audioIn( ofSoundBuffer& buffer );
    void audioOut( ofSoundBuffer& buffer );
    ofMutex audioMutex;
    
    ofSoundBuffer buffer;
};