You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
84 lines
2.5 KiB
84 lines
2.5 KiB
package com.inspect.tcpserver.sip.gb28181;
|
|
|
|
import java.net.*;
|
|
import java.util.concurrent.atomic.AtomicInteger;
|
|
|
|
public class RtpSenderEx {
|
|
|
|
private final DatagramSocket socket;
|
|
private final InetSocketAddress target;
|
|
private final int ssrc;
|
|
private final int payloadType;
|
|
private final AtomicInteger seq = new AtomicInteger(0);
|
|
|
|
public RtpSenderEx(String ip, int port, int ssrc, int pt) throws Exception {
|
|
this.socket = new DatagramSocket();
|
|
this.target = new InetSocketAddress(ip, port);
|
|
this.ssrc = ssrc;
|
|
this.payloadType = pt;
|
|
}
|
|
|
|
// public void send(byte[] ps, long ts90k) {
|
|
// int offset = 0;
|
|
// while (offset < ps.length) {
|
|
// int len = Math.min(1400, ps.length - offset);
|
|
// byte[] rtp = buildRtp(ps, offset, len, ts90k);
|
|
// socketSend(rtp);
|
|
// offset += len;
|
|
// }
|
|
// }
|
|
//
|
|
// private byte[] buildRtp(byte[] ps, int off, int len, long ts) {
|
|
// byte[] pkt = new byte[12 + len];
|
|
// pkt[0] = (byte) 0x80;
|
|
// pkt[1] = (byte) payloadType;
|
|
// pkt[2] = (byte) (seq.getAndIncrement() >> 8);
|
|
// pkt[3] = (byte) seq.get();
|
|
// pkt[4] = (byte) (ts >> 24);
|
|
// pkt[5] = (byte) (ts >> 16);
|
|
// pkt[6] = (byte) (ts >> 8);
|
|
// pkt[7] = (byte) ts;
|
|
// pkt[8] = (byte) (ssrc >> 24);
|
|
// pkt[9] = (byte) (ssrc >> 16);
|
|
// pkt[10] = (byte) (ssrc >> 8);
|
|
// pkt[11] = (byte) ssrc;
|
|
//
|
|
// System.arraycopy(ps, off, pkt, 12, len);
|
|
// return pkt;
|
|
// }
|
|
|
|
public void sendOne(byte[] ps, long ts90k) {
|
|
byte[] rtp = buildRtp(ps, ts90k, true);
|
|
socketSend(rtp);
|
|
}
|
|
|
|
private byte[] buildRtp(byte[] payload, long ts, boolean marker) {
|
|
byte[] pkt = new byte[12 + payload.length];
|
|
pkt[0] = (byte) 0x80;
|
|
pkt[1] = (byte) (payloadType | (marker ? 0x80 : 0));
|
|
pkt[2] = (byte) (seq.get() >> 8);
|
|
pkt[3] = (byte) seq.getAndIncrement();
|
|
pkt[4] = (byte) (ts >> 24);
|
|
pkt[5] = (byte) (ts >> 16);
|
|
pkt[6] = (byte) (ts >> 8);
|
|
pkt[7] = (byte) ts;
|
|
pkt[8] = (byte) (ssrc >> 24);
|
|
pkt[9] = (byte) (ssrc >> 16);
|
|
pkt[10] = (byte) (ssrc >> 8);
|
|
pkt[11] = (byte) ssrc;
|
|
|
|
System.arraycopy(payload, 0, pkt, 12, payload.length);
|
|
return pkt;
|
|
}
|
|
|
|
|
|
private void socketSend(byte[] pkt) {
|
|
try {
|
|
socket.send(new DatagramPacket(pkt, pkt.length, target));
|
|
} catch (Exception ignored) {}
|
|
}
|
|
|
|
public void close() {
|
|
socket.close();
|
|
}
|
|
}
|