m_stream.Read(buffer, sizeof(uint32_t));
alignment.SupportData.BlockLength = BamTools::UnpackUnsignedInt(buffer);
if ( m_isBigEndian ) BamTools::SwapEndian_32(alignment.SupportData.BlockLength);
m_stream.Read(buffer, sizeof(uint32_t));
alignment.SupportData.BlockLength = BamTools::UnpackUnsignedInt(buffer);
if ( m_isBigEndian ) BamTools::SwapEndian_32(alignment.SupportData.BlockLength);