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/*
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* Copyright (C) 2009 The Sipdroid Open Source Project
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* Copyright (C) 2005 Luca Veltri - University of Parma - Italy
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*
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* This file is part of Sipdroid (http://www.sipdroid.org)
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*
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* Sipdroid is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This source code is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this source code; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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package org.sipdroid.net;
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import java.net.InetAddress;
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import java.net.DatagramPacket;
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import java.io.IOException;
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/**
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* RtpSocket implements a RTP socket for receiving and sending RTP packets.
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* <p>
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* RtpSocket is associated to a DatagramSocket that is used to send and/or
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* receive RtpPackets.
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*/
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public class RtpSocket {
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/** UDP socket */
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SipdroidSocket socket;
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DatagramPacket datagram;
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/** Remote address */
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InetAddress r_addr;
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/** Remote port */
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int r_port;
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/** Creates a new RTP socket (only receiver) */
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public RtpSocket(SipdroidSocket datagram_socket) {
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socket = datagram_socket;
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r_addr = null;
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r_port = 0;
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datagram = new DatagramPacket(new byte[1],1);
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}
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/** Creates a new RTP socket (sender and receiver) */
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public RtpSocket(SipdroidSocket datagram_socket,
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InetAddress remote_address, int remote_port) {
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socket = datagram_socket;
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r_addr = remote_address;
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r_port = remote_port;
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datagram = new DatagramPacket(new byte[1],1);
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}
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/** Returns the RTP SipdroidSocket */
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public SipdroidSocket getDatagramSocket() {
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return socket;
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}
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/** Receives a RTP packet from this socket */
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public void receive(RtpPacket rtpp) throws IOException {
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datagram.setData(rtpp.packet);
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datagram.setLength(rtpp.packet.length);
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socket.receive(datagram);
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if (!socket.isConnected())
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socket.connect(datagram.getAddress(),datagram.getPort());
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rtpp.packet_len = datagram.getLength();
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}
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/** Sends a RTP packet from this socket */
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public void send(RtpPacket rtpp) throws IOException {
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datagram.setData(rtpp.packet);
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datagram.setLength(rtpp.packet_len);
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datagram.setAddress(r_addr);
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datagram.setPort(r_port);
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socket.send(datagram);
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}
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/** Closes this socket */
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public void close() { // socket.close();
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}
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}
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