How can I processing on the AudioQueue callback AudioQueueOutputCallback for FFT .
Just like this func
I know that AVAudioEngine can be processing for FFT under the AVAudioPCMBuffer .
or
How can I convert AudioQueueBufferRef to AVAudioPCMBuffer
Just like this func
Code Block static void audioQueueOutpuCallBack(void *input, AudioQueueRef inQueue, AudioQueueBufferRef outQueueBuffer) { SYAudioQueue *aq = (__bridge SYAudioQueue *)input; dispatch_semaphore_wait(aq->m_mutex, DISPATCH_TIME_FOREVER); [aq enterQueue:inQueue withBuffer:outQueueBuffer]; dispatch_semaphore_signal(aq->m_mutex); }
I know that AVAudioEngine can be processing for FFT under the AVAudioPCMBuffer .
or
How can I convert AudioQueueBufferRef to AVAudioPCMBuffer
