How can I processing on the AudioQueue callback AudioQueueOutputCallback for FFT .
Just like this func
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
ShenYuanLuo
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