ap_AudioConversion_19.m

UInt32 CalculateOutputBufferSize(AudioConverterRef audioConverter,
                                 UInt32 iPacketsPerBuffer) {
  
  UInt32 size = 0;
  Boolean isWritable = false;
  CheckError(AudioConverterGetPropertyInfo(audioConverter,
                                           kAudioConverterPropertyMaximumOutputPacketSize,
                                           &size,
                                           &isWritable),
             "Getting the Audio Converter property value size for property kAudioConverterPropertyMaximumOutputPacketSize");
  
  UInt32 maximumOutputPackeSize = 0;
  CheckError(AudioConverterGetProperty(audioConverter,
                                       kAudioConverterPropertyMaximumOutputPacketSize,
                                       &size,
                                       &maximumOutputPackeSize),
             "Getting the Audio Converter Property: MaximumOutputPacketSize");
  
  return iPacketsPerBuffer * maximumOutputPackeSize;
}