- 追加された行はこの色です。
- 削除された行はこの色です。
#author("2020-03-16T01:40:07+09:00","","")
[[Program]]
RTP MEMO
````
class Rtp
{
void startReceive()
{
Socket udpSocket = new Socket(AddressFamily.InterNetwrok,
SocketType.Dgram, ProtocolType.Udp);
IPEndPoint localhostIpEnd = new IPEndPoint(IPAddress.Any, targetPort);
udpSocket.Bind(localhostIPEnd);
MulticastOption(SocketOptionLevel.IP, SocketOptionName.AddMembership, mcastOpt);
byte[] recvBuf = new byte[65535];
int byteRecevied = udpSocket.ReceiveFrom(recvByte, ref, localEndPoint);
}
}
class RtpHeader
{
private byte[] header;
public RtpHeader(byte[] data)
{
header = data;
}
public int getVersion()
{ // [0] [7|6|5|4|3|2|1|0]
// ~~~
return (header[0] >> 6) & 0x03;
}
public int getPadding()
{ // [0] [7|6|5|4|3|2|1|0]
// ~
return (header[0] >> 6) & 0x01;
}
static int getExtention()
{ // [0] [7|6|5|4|3|2|1|0]
// ~
return (header[0] >> 5) & 0x01;
}
public int getCsrcCount()
{ // [0] [7|6|5|4|3|2|1|0]
// ~~~~~~~
return (header[0] & 0x0F);
}
public int getMarker()
{ // [1] [7|6|5|4|3|2|1|0]
// ~
return (header[1] >> 7) & 0x01;
}
public int getPayloadType()
{ // [1] [7|6|5|4|3|2|1|0]
// ~~~~~~~~~~~~~
return (header[1] & 0x7F);
}
public int getSequenceNumber()
{ // [2][3]
int val = ((header[2] << 8) & 0xFF00);
val |= (header[3] & 0xFF);
return val;
}
public int getTimestamp()
{ // [4][5]
int val = ((header[4] << 8) & 0xFF00);
val |= (header[5] & 0xFF);
return val;
}
public int getSsrc()
{ // [6][7][8][9]
int val = header[6] & 0xFF;
val <<= 8;
val |= header[7] & 0xFF;
val <<= 8;
val |= header[8] & 0xFF;
val <<= 8;
val |= header[9] & 0xFF;
return val;
}
}
class JpegHeader
{
// [0] Type-specific
// [1]-[3] Fragment Offset
// [4] Type
// [5] Q
// [6] Width
// [7] Height
// RestartMerker
//
}
````
