FinalizeFile
RETURN_ON_ERROR(FinalizeFile(m_spIO, m_nFrameIndex, m_nLastFrameBlocks,
int FinalizeFile(CIO * pIO, int nNumberOfFrames, int nFinalFrameBlocks, const void * pTerminatingData, int nTerminatingBytes, int nWAVTerminatingBytes, int nPeakLevel);