private static byte[] CreateSetMessage(int tuner, String name, String value, uint?lockkey)
{
var byteName = Encoding.UTF8.GetBytes(String.Format("/tuner{0}/{1}\0", tuner, name));
var byteValue = Encoding.UTF8.GetBytes(String.Format("{0}\0", value));
int messageLength = byteName.Length + byteValue.Length + 12;
if (lockkey.HasValue)
{
messageLength += 6;
}
var message = new byte[messageLength];
int offset = InsertHeaderAndName(byteName, messageLength, message);
bool flipEndian = BitConverter.IsLittleEndian;
message[offset] = GetSetValue;
offset++;
message[offset] = Convert.ToByte(byteValue.Length);
offset++;
Buffer.BlockCopy(byteValue, 0, message, offset, byteValue.Length);
offset += byteValue.Length;
if (lockkey.HasValue)
{
message[offset] = GetSetLockkey;
offset++;
message[offset] = (byte)4;
offset++;
var lockKeyBytes = BitConverter.GetBytes(lockkey.Value);
if (flipEndian)
{
Array.Reverse(lockKeyBytes);
}
Buffer.BlockCopy(lockKeyBytes, 0, message, offset, 4);
offset += 4;
}
// calculate crc and insert at the end of the message
var crcBytes = BitConverter.GetBytes(HdHomerunCrc.GetCrc32(message, messageLength - 4));
if (flipEndian)
{
Array.Reverse(crcBytes);
}
Buffer.BlockCopy(crcBytes, 0, message, offset, 4);
return(message);
}
private static byte[] CreateGetMessage(int tuner, string name)
{
var byteName = Encoding.UTF8.GetBytes(String.Format("/tuner{0}/{1}\0", tuner, name));
int messageLength = byteName.Length + 10; // 4 bytes for header + 4 bytes for crc + 2 bytes for tag name and length
var message = new byte[messageLength];
int offset = InsertHeaderAndName(byteName, messageLength, message);
bool flipEndian = BitConverter.IsLittleEndian;
// calculate crc and insert at the end of the message
var crcBytes = BitConverter.GetBytes(HdHomerunCrc.GetCrc32(message, messageLength - 4));
if (flipEndian)
{
Array.Reverse(crcBytes);
}
Buffer.BlockCopy(crcBytes, 0, message, offset, 4);
return(message);
}
