public RTMPMessageHeader(RTMPConnection connection, BinaryReader br)
{
Connection = connection;
//format
ReadFormatAndChunkStreamID(br);
RTMPChunkStream csinfo = Connection.GetChunkStream((int)ChunkStreamID);
//yay code repetition ftw!
switch (Format)
{
case RTMPMessageFormat.BasicHeader_1:
Timestamp = csinfo.Timestamp;
MessageLength = csinfo.MessageLength;
MessageTypeID = csinfo.MessageTypeID;
MessageStreamID = csinfo.MessageStreamID;
break;
case RTMPMessageFormat.BasicHeaderAndTime_4:
ReadTimestamp(br);
ReadExtendedTimestamp(br);
csinfo.Timestamp = Timestamp;
MessageLength = csinfo.MessageLength;
MessageTypeID = csinfo.MessageTypeID;
MessageStreamID = csinfo.MessageStreamID;
break;
case RTMPMessageFormat.NoMessageId_8:
ReadTimestamp(br);
ReadMessageLength(br);
ReadMessageTypeID(br);
ReadExtendedTimestamp(br);
csinfo.Timestamp = Timestamp;
csinfo.MessageLength = MessageLength;
csinfo.MessageTypeID = MessageTypeID;
MessageStreamID = csinfo.MessageStreamID;
break;
case RTMPMessageFormat.FullHeader_12:
ReadTimestamp(br);
ReadMessageLength(br);
ReadMessageTypeID(br);
ReadMessageStreamID(br);
ReadExtendedTimestamp(br);
csinfo.Timestamp = Timestamp;
csinfo.MessageLength = MessageLength;
csinfo.MessageTypeID = MessageTypeID;
csinfo.MessageStreamID = MessageStreamID;
break;
}
/*Timestamp = info.Timestamp;
MessageLengthFromHeader = info.MessageLength;
MessageTypeID = info.MessageTypeID;
MessageStreamID = info.MessageStreamID;*/
}
public void Do(BinaryWriter bw, BinaryReader br)
{
PrepareC0();
SendC0(bw);
PrepareC1();
SendC1(bw);
ReceiveS0(br);
ReceiveS1(br);
ReceiveS2(br);
PrepareC2();
SendC2(bw);
}
public RTMPConnection(IPAddress address, int port, int timeoutMilliseconds = 2000)
{
TcpClientWithTimeout tcpClient = new TcpClientWithTimeout(new IPEndPoint(address, port));
tcpClient.Connect(timeoutMilliseconds);
InternalTcpClient = tcpClient.InternalClient;
Counter = new CountingStream(InternalTcpClient.GetStream());
InternalBinaryReader = new BinaryReader(Counter);
InternalBinaryWriter = new BinaryWriter(Counter);
IncomingChunkSize = 128;
OutgoingChunkSize = 128;
readerThread = new Thread(reader_run);
readerThread.IsBackground = true;
readerThread.Start();
}
protected virtual void ReceiveS2(BinaryReader br)
{
S2 = br.ReadBytes(1536); // S2 (copy of C1)
}
protected virtual void ReceiveS1(BinaryReader br)
{
S1 = br.ReadBytes(1536); // S1
}
protected virtual void ReceiveS0(BinaryReader br)
{
S0 = new byte[] { br.ReadByte() };
}
private void ReadTimestamp(BinaryReader br)
{
// timestamp
byte[] tmstmp = br.ReadBytes(3);
Timestamp = 0;
Timestamp |= (uint)(tmstmp[0] << 16);
Timestamp |= (uint)(tmstmp[1] << 8);
Timestamp |= (uint)tmstmp[2];
extendedTimeStamp = Timestamp == 0xFFFFFF; // extended timestamp, 4 bytes
}
private void ReadMessageTypeID(BinaryReader br)
{
MessageTypeID = (RTMPMessageTypeID)br.ReadByte();
}
private void ReadMessageStreamID(BinaryReader br)
{
br.InputEndianness = Endianness.LittleEndian;
MessageStreamID = br.ReadInt(); // little endian??? crzy people
br.InputEndianness = Endianness.BigEndian;
}
private void ReadMessageLength(BinaryReader br)
{
byte[] bodysize = br.ReadBytes(3);
MessageLength = 0;
MessageLength |= bodysize[0] << 16;
MessageLength |= bodysize[1] << 8;
MessageLength |= bodysize[2];
}
private void ReadFormatAndChunkStreamID(BinaryReader br)
{
byte fmt = br.ReadByte();
Format = (RTMPMessageFormat)(fmt >> 6); // b11000000
//chunk stream id
byte csid = (byte)(fmt & 0x3f); // b00111111
switch (csid)
{
case 0: //extended with 1 byte
byte next1 = br.ReadByte();
ChunkStreamID = (RTMPMessageChunkStreamID)(64 + next1);
break;
case 1: //extended with 2 bytes
next1 = br.ReadByte();
byte next2 = br.ReadByte();
ChunkStreamID = (RTMPMessageChunkStreamID)(64 + next1 + (next2 * 256));
break;
case 2: //low level message
ChunkStreamID = RTMPMessageChunkStreamID.LowLevelMessage;
break;
default:
ChunkStreamID = (RTMPMessageChunkStreamID)csid;
break;
}
}
private void ReadExtendedTimestamp(BinaryReader br)
{
if (extendedTimeStamp)
{
byte[] tmstmp = br.ReadBytes(4);
Timestamp = 0;
Timestamp |= (uint)(tmstmp[0] << 24);
Timestamp |= (uint)(tmstmp[1] << 16);
Timestamp |= (uint)(tmstmp[2] << 8);
Timestamp |= (uint)tmstmp[3];
}
}
