std::shared_ptr<BufferListT<T> > createBufferList( uint32_t sampleCount, uint16_t channelCount, bool isInterleaved )
{
void (*fn)( BufferListT<T> * ) = deleteBufferList;
std::shared_ptr<BufferListT<T> > bufferList( new BufferListT<T>, fn );
uint16_t bufferCount = 0;
uint32_t bufferSize = 0;
uint16_t channelsPerBuffer = 0;
if( ! isInterleaved ) {
bufferCount = channelCount;
bufferSize = sampleCount;
channelsPerBuffer = 1;
} else {
bufferCount = 1;
bufferSize = sampleCount * channelCount;
channelsPerBuffer = channelCount;
}
bufferList->mNumberBuffers = bufferCount;
bufferList->mBuffers = new BufferT<T>[bufferCount];
for( int i = 0; i < bufferCount; i++ ) {
bufferList->mBuffers[i].mNumberChannels = channelsPerBuffer;
bufferList->mBuffers[i].mDataByteSize = bufferSize * sizeof(T);
bufferList->mBuffers[i].mData = new T[bufferSize];
bufferList->mBuffers[i].mSampleCount = sampleCount;
}
return bufferList;
}
// ----------------------------------------------------------
ofxAudioUnitInput::RingBuffer::RingBuffer(UInt32 buffers, UInt32 channels, UInt32 samples) :
_readItrIndex(0), _writeItrIndex(0)
// ----------------------------------------------------------
{
reserve(buffers);
for(UInt32 i = 0; i < buffers; i++)
{
AudioBufferListRef bufferList(allocBufferList(channels,samples), releaseBufferList);
push_back(bufferList);
}
_readItr = _writeItr = begin();
}
