AudioConverterFillComplexBuffer returns 1852797029 (kAudioCodecIllegalOperationError) - ios

Question

I'm trying to decode aac data with AudioToolbox in iOS environment. I consulted this thread.
'AudioConverterNew' function call succeed but AudioConverterFillComplexBuffer returns error code 1852797029, kAudioCodecIllegalOperationError.
I'm trying to find my mistakes. Thank you for reading.
- (void)initAudioToolBox {
HCAudioAsset* asset = [self.provider getAudioAsset];
AudioStreamBasicDescription outFormat;
memset(&outFormat, 0, sizeof(outFormat));
outFormat.mSampleRate = 44100;
outFormat.mFormatID = kAudioFormatLinearPCM;
outFormat.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger;
outFormat.mBytesPerPacket = 2;
outFormat.mFramesPerPacket = 1;
outFormat.mBytesPerFrame = 2;
outFormat.mChannelsPerFrame = 1;
outFormat.mBitsPerChannel = 16;
outFormat.mReserved = 0;
AudioStreamBasicDescription inFormat;
memset(&inFormat, 0, sizeof(inFormat));
inFormat.mSampleRate = [asset sampleRate];
inFormat.mFormatID = kAudioFormatMPEG4AAC;
inFormat.mFormatFlags = kMPEG4Object_AAC_LC;
inFormat.mBytesPerPacket = 0;
inFormat.mFramesPerPacket = (UInt32)[asset framePerPacket];
inFormat.mBytesPerFrame = 0;
inFormat.mChannelsPerFrame = (UInt32)[asset channelCount];
inFormat.mBitsPerChannel = 0;
inFormat.mReserved = 0;
OSStatus status = AudioConverterNew(&inFormat, &outFormat, &audioConverter);
if (status != noErr) {
NSLog(#"setup converter error, status: %i\n", (int)status);
} else {
NSLog(#"Audio Converter is initialized successfully.");
}
}
typedef struct _PassthroughUserData PassthroughUserData;
struct _PassthroughUserData {
UInt32 mChannels;
UInt32 mDataSize;
const void* mData;
AudioStreamPacketDescription mPacket;
};
int inInputDataProc(AudioConverterRef aAudioConverter,
UInt32* aNumDataPackets,
AudioBufferList* aData,
AudioStreamPacketDescription** aPacketDesc,
void* aUserData)
{
PassthroughUserData* userData = (PassthroughUserData*)aUserData;
if (!userData->mDataSize) {
*aNumDataPackets = 0;
NSLog(#"inInputDataProc returns -1");
return -1;
}
if (aPacketDesc) {
userData->mPacket.mStartOffset = 0;
userData->mPacket.mVariableFramesInPacket = 0;
userData->mPacket.mDataByteSize = userData->mDataSize;
NSLog(#"mDataSize:%d", userData->mDataSize);
*aPacketDesc = &userData->mPacket;
}
aData->mBuffers[0].mNumberChannels = userData->mChannels;
aData->mBuffers[0].mDataByteSize = userData->mDataSize;
aData->mBuffers[0].mData = (void*)(userData->mData);
NSLog(#"buffer[0] - channel:%d, byte size:%u, data:%p",
aData->mBuffers[0].mNumberChannels,
(unsigned int)aData->mBuffers[0].mDataByteSize,
aData->mBuffers[0].mData);
// No more data to provide following this run.
userData->mDataSize = 0;
NSLog(#"inInputDataProc returns 0");
return 0;
}
- (void)decodeAudioFrame:(NSData *)frame withPts:(NSInteger)pts{
if(!audioConverter){
[self initAudioToolBox];
}
HCAudioAsset* asset = [self.provider getAudioAsset];
PassthroughUserData userData = { (UInt32)[asset channelCount], (UInt32)frame.length, [frame bytes]};
NSMutableData *decodedData = [NSMutableData new];
const uint32_t MAX_AUDIO_FRAMES = 128;
const uint32_t maxDecodedSamples = MAX_AUDIO_FRAMES * 1;
do {
uint8_t *buffer = (uint8_t *)malloc(maxDecodedSamples * sizeof(short int));
AudioBufferList decBuffer;
memset(&decBuffer, 0, sizeof(AudioBufferList));
decBuffer.mNumberBuffers = 1;
decBuffer.mBuffers[0].mNumberChannels = 2;
decBuffer.mBuffers[0].mDataByteSize = maxDecodedSamples * sizeof(short int);
decBuffer.mBuffers[0].mData = buffer;
UInt32 numFrames = MAX_AUDIO_FRAMES;
AudioStreamPacketDescription outPacketDescription;
memset(&outPacketDescription, 0, sizeof(AudioStreamPacketDescription));
outPacketDescription.mDataByteSize = MAX_AUDIO_FRAMES;
outPacketDescription.mStartOffset = 0;
outPacketDescription.mVariableFramesInPacket = 0;
NSLog(#"frame - size:%lu, buffer:%p", [frame length], [frame bytes]);
OSStatus rv = AudioConverterFillComplexBuffer(audioConverter,
inInputDataProc,
&userData,
&numFrames,
&decBuffer,
&outPacketDescription);
NSLog(#"num frames:%d, dec buffer [0] channels:%d, dec buffer [0] data byte size:%d, rv:%d",
numFrames, decBuffer.mBuffers[0].mNumberChannels,
decBuffer.mBuffers[0].mDataByteSize, (int)rv);
if (rv && rv != noErr) {
NSLog(#"Error decoding audio stream: %d\n", rv);
break;
}
if (numFrames) {
[decodedData appendBytes:decBuffer.mBuffers[0].mData length:decBuffer.mBuffers[0].mDataByteSize];
}
} while (true);
//void *pData = (void *)[decodedData bytes];
//audioRenderer->Render(&pData, decodedData.length, pts);
}