static int callback(const void *inputBuffer, void *outputBuffer, unsigned long framesPerBuffer, const PaStreamCallbackTimeInfo* timeInfo, PaStreamCallbackFlags statusFlags, void *userData ) { AudioProcessor* audioDevice = (AudioProcessor*)userData; float** output = (float**)outputBuffer; float** input = (float**)inputBuffer; // if(audioDevice->isPrepared()) audioDevice->render(input, audioDevice->getNumInputChannels(), output, audioDevice->getNumOutputChannels(), framesPerBuffer); return 0; }