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Using AudioConverterFillBuffer in RecordCallBack
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Using AudioConverterFillBuffer in RecordCallBack


  • Subject: Using AudioConverterFillBuffer in RecordCallBack
  • From: sheen mac <email@hidden>
  • Date: Tue, 19 Dec 2006 08:21:03 -0800 (PST)

Hi All,

Is it possible to use the AudioConverterFillBuffer in normal
RecordCallback.I added a bit of code here.But it not not
working.


                 Thanks in Advance,
                 Sheen



OSStatus ConverterInputDataProc(AudioConverterRef inAudioConverter,
                                UInt32* ioDataSize,
                                void** outData,
                                void* inUserData)

{
    OSStatus err = noErr;
   
    bcopy(inUserData,*outData,*ioDataSize);
   
    return err;
   
}



OSStatus recordCallback(
                        AudioDeviceID device,
                        const AudioTimeStamp* now,
                        const AudioBufferList* input_data,
                        const AudioTimeStamp* input_time,
                        AudioBufferList* output_data,
                        const AudioTimeStamp* output_time,
                        void* client_data
                        )
{
  
OSErr err;   
   
    if(buf_Recorded < 256)
    {
    AudioBuffer *recordBuffer = &(recordBuffers[buf_Recorded].mBuffers[0]);
    recordBuffer->mNumberChannels = input_data->mBuffers[0].mNumberChannels;
    recordBuffer->mDataByteSize = input_data->mBuffers[0].mDataByteSize;
 
   
    UInt32 ausize=input_data->mBuffers[0].mDataByteSize;
   
    AudioConverterFillBuffer(conv,
                             ConverterInputDataProc,
                             input_data->mBuffers[0].mData,
                             &ausize,
                             recordBuffer->mData);
   
   
    buf_Recorded += 1;
    }
   
   
 
    return kAudioHardwareNoError;
}



 

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