DSPUtil.WaveReader.ReadSPDIF C# (CSharp) Method

        private void ReadSPDIF()
        {
            if (_ok)
            {
                byte[] spdif = { 0x72, 0xf8, 0x1f, 0x4e };
                if (_rdr.BaseStream.CanSeek)
                {
                    _seekpos = _rdr.BaseStream.Position;
                }

                // Read the first sample "manually"
                // so we can check whether there's a SPDIF or other magic number
                // at the beginning of the stream.
                int nFirst = (_nc * _bitsPerSample / 8);
                byte[] firstBytes = _rdr.ReadBytes(nFirst);
                MemoryStream ms = new MemoryStream(firstBytes);
                BinaryReader mr = new BinaryReader(ms);

                // Save the sample for later use
                _first = Next(mr, out _moreThanFirst);

                if (firstBytes.Length >= nFirst)
                {
                    // Check whether it's SPDIF-wrapped
                    _isSPDIF = true;
                    for (int b = 0; _isSPDIF && b < spdif.Length && b < nFirst; b++)
                    {
                        _isSPDIF &= (spdif[b] == firstBytes[b]);
                    }
                }
            }
        }