Emeric Vigier | 2f62582 | 2012-08-06 11:09:52 -0400 | [diff] [blame] | 1 | // Common header for audiorx/audiotx. |
| 2 | // A simple and amusing application for testing basic features of ccRTP. |
| 3 | // Copyright (C) 2001,2002 Federico Montesino <fedemp@altern.org> |
| 4 | // |
| 5 | // This program is free software; you can redistribute it and/or modify |
| 6 | // it under the terms of the GNU General Public License as published by |
| 7 | // the Free Software Foundation; either version 2 of the License, or |
| 8 | // (at your option) any later version. |
| 9 | // |
| 10 | // This program is distributed in the hope that it will be useful, |
| 11 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | // GNU General Public License for more details. |
| 14 | // |
| 15 | // You should have received a copy of the GNU General Public License |
| 16 | // along with this program; if not, write to the Free Software |
| 17 | // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| 18 | |
| 19 | /** file audio.h |
| 20 | * Common header for audiorx and audiotx. |
| 21 | */ |
| 22 | |
| 23 | // audiorx and audiotx are, respectively, the transmitter and receiver of |
| 24 | // a simple application for testing ccRTP with audio. It aims to |
| 25 | // transmit/receive \mu-law encoded audio on RTP packets. |
| 26 | |
| 27 | |
| 28 | // UDP/RTP ports |
| 29 | const int RECEIVER_BASE = 22222; |
| 30 | const int TRANSMITTER_BASE = 33334; |
| 31 | |
| 32 | // We will sample at 8 Khz using \mu-law encoding |
| 33 | const int SAMPLING_RATE = 8000; |
| 34 | |
| 35 | // Transmission interval between consecutive packets. |
| 36 | // Ideally, the interval should be 20 milliseconds |
| 37 | const int PERIOD = 20; |
| 38 | |
| 39 | // Packets are 8000*20/1000 = 160 octects long. |
| 40 | const int PACKET_SIZE=SAMPLING_RATE*PERIOD/1000; |