/// <summary>
/// Adds headers to provided data.
/// </summary>
/// <param name="data">The data to add headers to.</param>
/// <returns>The data with added headers.</returns>
public byte[] AddHeaders(byte[] data)
{
var result = new List <byte>();
// Header byte
result.Add(0x03);
// Timestamp
long timediff = Utilities.CurrentTimeMillis() - _startTime;
result.Add((byte)((timediff & 0xFF0000) >> 16));
result.Add((byte)((timediff & 0x00FF00) >> 8));
result.Add((byte)(timediff & 0x0000FF));
// Content type
result.Add(0x11);
// Source ID
result.Add(0x00);
result.Add(0x00);
result.Add(0x00);
result.Add(0x00);
// Add body
for (int i = 0; i < data.Length; ++i)
{
result.Add(data[i]);
if (i % 128 == 127 && i < data.Length - 1)
{
result.Add(0xC3);
}
}
return(result.ToArray());
}
/// <summary>
/// Executes a full RTMP handshake
/// </summary>
private void doHandshake()
{
BinaryWriter binWriter = new BinaryWriter(output);
// C0
byte C0 = 0x03;
binWriter.Write(C0);
// C1
long timestampC1 = Utilities.CurrentTimeMillis();
byte[] randC1 = new byte[1528];
rand.NextBytes(randC1);
binWriter.Write((int)timestampC1);
binWriter.Write(0);
binWriter.Write(randC1, 0, 1528);
binWriter.Flush();
// S0
byte S0 = (byte)input.ReadByte();
if (S0 != 0x03)
{
throw new Exception("Server returned incorrect version in handshake: " + S0);
}
// S1
byte[] S1 = new byte[1536];
input.Read(S1, 0, 1536);
// C2
long timestampC2 = Utilities.CurrentTimeMillis();
binWriter.Write(S1, 0, 4);
binWriter.Write((int)timestampC1);
binWriter.Write(S1, 8, 1528);
binWriter.Flush();
// S2
byte[] S2 = new byte[1536];
input.Read(S1, 0, 1536);
// Validate handshake
bool valid = true;
for (int i = 8; i < 1536; i++)
{
if (randC1[i - 8] != S2[i])
{
valid = false;
break;
}
}
if (!valid)
{
throw new Exception("Handshake was not valid.");
}
}
