LFHardwareAudioEncoder第80行的inputFormat问题 about miaowshow HOT 2 OPEN

我的也有同样的问题，崩溃在下面这个函数的 AudioConverterNewSpecific 这一行，请问是什么原因？

#pragma mark -- CustomMethod

• (BOOL)createAudioConvert { //根据输入样本初始化一个编码转换器
  if (m_converter != nil) {
  return TRUE;
  }

  AudioStreamBasicDescription inputFormat = {0};
  inputFormat.mSampleRate = _configuration.audioSampleRate;
  inputFormat.mFormatID = kAudioFormatLinearPCM;
  inputFormat.mFormatFlags = kAudioFormatFlagIsSignedInteger | kAudioFormatFlagsNativeEndian | kAudioFormatFlagIsPacked;
  inputFormat.mChannelsPerFrame = (UInt32)_configuration.numberOfChannels;
  inputFormat.mFramesPerPacket = 1;
  inputFormat.mBitsPerChannel = 16;
  inputFormat.mBytesPerFrame = inputFormat.mBitsPerChannel / 8 * inputFormat.mChannelsPerFrame;
  inputFormat.mBytesPerPacket = inputFormat.mBytesPerFrame * inputFormat.mFramesPerPacket;

  AudioStreamBasicDescription outputFormat; // 这里开始是输出音频格式
  memset(&outputFormat, 0, sizeof(outputFormat));
  outputFormat.mSampleRate = inputFormat.mSampleRate; // 采样率保持一致
  outputFormat.mFormatID = kAudioFormatMPEG4AAC; // AAC编码 kAudioFormatMPEG4AAC kAudioFormatMPEG4AAC_HE_V2
  outputFormat.mChannelsPerFrame = (UInt32)_configuration.numberOfChannels;;
  outputFormat.mFramesPerPacket = 1024; // AAC一帧是1024个字节

  const OSType subtype = kAudioFormatMPEG4AAC;
  AudioClassDescription requestedCodecs[2] = {
  {
  kAudioEncoderComponentType,
  subtype,
  kAppleSoftwareAudioCodecManufacturer
  },
  {
  kAudioEncoderComponentType,
  subtype,
  kAppleHardwareAudioCodecManufacturer
  }
  };
  OSStatus result = AudioConverterNewSpecific(&inputFormat, &outputFormat, 2, requestedCodecs, &m_converter);
  if (result != noErr) return NO;

  return YES;
  }

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Thank you

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