UnityEngine.WWWTranscoder.Decode C# (CSharp) Method

        public static byte[] Decode(byte[] input, byte escapeChar, byte space)
        {
            using (MemoryStream stream = new MemoryStream(input.Length))
            {
                for (int i = 0; i < input.Length; i++)
                {
                    if (input[i] == space)
                    {
                        stream.WriteByte(0x20);
                    }
                    else if ((input[i] == escapeChar) && ((i + 2) < input.Length))
                    {
                        i++;
                        stream.WriteByte(Hex2Byte(input, i++));
                    }
                    else
                    {
                        stream.WriteByte(input[i]);
                    }
                }
                return stream.ToArray();
            }
        }

 public static byte[] QPDecode(byte[] toEncode)
 {
     return(WWWTranscoder.Decode(toEncode, WWWTranscoder.qpEscapeChar, WWWTranscoder.qpSpace));
 }