00001 // Common header for audiorx/audiotx. 00002 // A simple and amusing application for testing basic features of ccRTP. 00003 // Copyright (C) 2001,2002 Federico Montesino <fedemp@altern.org> 00004 // 00005 // This program is free software; you can redistribute it and/or modify 00006 // it under the terms of the GNU General Public License as published by 00007 // the Free Software Foundation; either version 2 of the License, or 00008 // (at your option) any later version. 00009 // 00010 // This program is distributed in the hope that it will be useful, 00011 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00013 // GNU General Public License for more details. 00014 // 00015 // You should have received a copy of the GNU General Public License 00016 // along with this program; if not, write to the Free Software 00017 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 00018 00023 // audiorx and audiotx are, respectively, the transmitter and receiver of 00024 // a simple application for testing ccRTP with audio. It aims to 00025 // transmit/receive \mu-law encoded audio on RTP packets. 00026 00027 00028 // UDP/RTP ports 00029 const int RECEIVER_BASE = 22222; 00030 const int TRANSMITTER_BASE = 33334; 00031 00032 // We will sample at 8 Khz using \mu-law encoding 00033 const int SAMPLING_RATE = 8000; 00034 00035 // Transmission interval between consecutive packets. 00036 // Ideally, the interval should be 20 milliseconds 00037 const int PERIOD = 20; 00038 00039 // Packets are 8000*20/1000 = 160 octects long. 00040 const int PACKET_SIZE=SAMPLING_RATE*PERIOD/1000;