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<h1>audio.h</h1><div class="fragment"><pre class="fragment"><span class="comment">// Common header for audiorx/audiotx. </span>
<span class="comment">// A simple and amusing application for testing basic features of ccRTP.</span>
<span class="comment">// Copyright (C) 2001,2002 Federico Montesino <fedemp@altern.org></span>
<span class="comment">// </span>
<span class="comment">// This program is free software; you can redistribute it and/or modify</span>
<span class="comment">// it under the terms of the GNU General Public License as published by</span>
<span class="comment">// the Free Software Foundation; either version 2 of the License, or</span>
<span class="comment">// (at your option) any later version.</span>
<span class="comment">// </span>
<span class="comment">// This program is distributed in the hope that it will be useful,</span>
<span class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</span>
<span class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span>
<span class="comment">// GNU General Public License for more details.</span>
<span class="comment">// </span>
<span class="comment">// You should have received a copy of the GNU General Public License</span>
<span class="comment">// along with this program; if not, write to the Free Software</span>
<span class="comment">// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span>
<span class="comment">// audiorx and audiotx are, respectively, the transmitter and receiver of</span>
<span class="comment">// a simple application for testing ccRTP with audio. It aims to</span>
<span class="comment">// transmit/receive \mu-law encoded audio on RTP packets.</span>
<span class="comment">// UDP/RTP ports </span>
<span class="keyword">const</span> <span class="keywordtype">int</span> RECEIVER_BASE = 22222;
<span class="keyword">const</span> <span class="keywordtype">int</span> TRANSMITTER_BASE = 33334;
<span class="comment">// We will sample at 8 Khz using \mu-law encoding</span>
<span class="keyword">const</span> <span class="keywordtype">int</span> SAMPLING_RATE = 8000;
<span class="comment">// Transmission interval between consecutive packets. </span>
<span class="comment">// Ideally, the interval should be 20 milliseconds</span>
<span class="keyword">const</span> <span class="keywordtype">int</span> PERIOD = 20;
<span class="comment">// Packets are 8000*20/1000 = 160 octects long. </span>
<span class="keyword">const</span> <span class="keywordtype">int</span> PACKET_SIZE=SAMPLING_RATE*PERIOD/1000;
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