我有这段代码，我正在尝试使用它来捕获音频数据。然而，编译器提示CMSampleBufferGetAudioBufferListWithRetainedBlockBuffer-(void)captureOutput:(AVCaptureOutput*)captureOutputdidOutputSampleBuffer:(CMSampleBufferRef)sampleBufferfromConnection:(AVCaptureConnection*)connection{AudioBufferListaudioBufferList;NSMutableData*data=[[NSMut

我想知道如何在Swift中调用这个AVFoundation函数。我花了很多时间摆弄声明和语法，并走到了这一步。编译器很高兴，但我还有最后一个困惑。publicfunccaptureOutput(captureOutput:AVCaptureOutput!,didOutputSampleBuffersampleBuffer:CMSampleBuffer!,fromConnectionconnection:AVCaptureConnection!){letsamplesInBuffer=CMSampleBufferGetNumSamples(sampleBuffer)varaudioBuf