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sphinxbase-devel-0.7-1.fc14.i686.rpm

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<h1>src/libsphinxad/ad_base.c</h1>  </div>
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<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- c-basic-offset: 4; indent-tabs-mode: nil -*- */</span>
<a name="l00002"></a>00002 <span class="comment">/* ====================================================================</span>
<a name="l00003"></a>00003 <span class="comment"> * Copyright (c) 1999-2001 Carnegie Mellon University.  All rights</span>
<a name="l00004"></a>00004 <span class="comment"> * reserved.</span>
<a name="l00005"></a>00005 <span class="comment"> *</span>
<a name="l00006"></a>00006 <span class="comment"> * Redistribution and use in source and binary forms, with or without</span>
<a name="l00007"></a>00007 <span class="comment"> * modification, are permitted provided that the following conditions</span>
<a name="l00008"></a>00008 <span class="comment"> * are met:</span>
<a name="l00009"></a>00009 <span class="comment"> *</span>
<a name="l00010"></a>00010 <span class="comment"> * 1. Redistributions of source code must retain the above copyright</span>
<a name="l00011"></a>00011 <span class="comment"> *    notice, this list of conditions and the following disclaimer. </span>
<a name="l00012"></a>00012 <span class="comment"> *</span>
<a name="l00013"></a>00013 <span class="comment"> * 2. Redistributions in binary form must reproduce the above copyright</span>
<a name="l00014"></a>00014 <span class="comment"> *    notice, this list of conditions and the following disclaimer in</span>
<a name="l00015"></a>00015 <span class="comment"> *    the documentation and/or other materials provided with the</span>
<a name="l00016"></a>00016 <span class="comment"> *    distribution.</span>
<a name="l00017"></a>00017 <span class="comment"> *</span>
<a name="l00018"></a>00018 <span class="comment"> * This work was supported in part by funding from the Defense Advanced </span>
<a name="l00019"></a>00019 <span class="comment"> * Research Projects Agency and the National Science Foundation of the </span>
<a name="l00020"></a>00020 <span class="comment"> * United States of America, and the CMU Sphinx Speech Consortium.</span>
<a name="l00021"></a>00021 <span class="comment"> *</span>
<a name="l00022"></a>00022 <span class="comment"> * THIS SOFTWARE IS PROVIDED BY CARNEGIE MELLON UNIVERSITY ``AS IS&#39;&#39; AND </span>
<a name="l00023"></a>00023 <span class="comment"> * ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, </span>
<a name="l00024"></a>00024 <span class="comment"> * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR</span>
<a name="l00025"></a>00025 <span class="comment"> * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY</span>
<a name="l00026"></a>00026 <span class="comment"> * NOR ITS EMPLOYEES BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,</span>
<a name="l00027"></a>00027 <span class="comment"> * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT </span>
<a name="l00028"></a>00028 <span class="comment"> * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, </span>
<a name="l00029"></a>00029 <span class="comment"> * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY </span>
<a name="l00030"></a>00030 <span class="comment"> * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT </span>
<a name="l00031"></a>00031 <span class="comment"> * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE </span>
<a name="l00032"></a>00032 <span class="comment"> * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span>
<a name="l00033"></a>00033 <span class="comment"> *</span>
<a name="l00034"></a>00034 <span class="comment"> * ====================================================================</span>
<a name="l00035"></a>00035 <span class="comment"> *</span>
<a name="l00036"></a>00036 <span class="comment"> */</span>
<a name="l00037"></a>00037 
<a name="l00038"></a>00038 <span class="comment">/*</span>
<a name="l00039"></a>00039 <span class="comment"> * ad.c -- Wraps a &quot;sphinx-II standard&quot; audio interface around the basic audio</span>
<a name="l00040"></a>00040 <span class="comment"> *              utilities.</span>
<a name="l00041"></a>00041 <span class="comment"> *</span>
<a name="l00042"></a>00042 <span class="comment"> * HISTORY</span>
<a name="l00043"></a>00043 <span class="comment"> * </span>
<a name="l00044"></a>00044 <span class="comment"> * 11-Jun-96    M K Ravishankar (rkm@cs.cmu.edu) at Carnegie Mellon University.</span>
<a name="l00045"></a>00045 <span class="comment"> *              Modified to conform to new A/D API.</span>
<a name="l00046"></a>00046 <span class="comment"> * </span>
<a name="l00047"></a>00047 <span class="comment"> * 12-May-96    M K Ravishankar (rkm@cs.cmu.edu) at Carnegie Mellon University.</span>
<a name="l00048"></a>00048 <span class="comment"> *              Dummy template created.</span>
<a name="l00049"></a>00049 <span class="comment"> */</span>
<a name="l00050"></a>00050 
<a name="l00051"></a>00051 <span class="preprocessor">#include &lt;stdio.h&gt;</span>
<a name="l00052"></a>00052 <span class="preprocessor">#include &lt;string.h&gt;</span>
<a name="l00053"></a>00053 <span class="preprocessor">#include &lt;config.h&gt;</span>
<a name="l00054"></a>00054 
<a name="l00055"></a>00055 <span class="preprocessor">#include &quot;prim_type.h&quot;</span>
<a name="l00056"></a>00056 <span class="preprocessor">#include &quot;ad.h&quot;</span>
<a name="l00057"></a>00057 
<a name="l00058"></a>00058 <span class="preprocessor">#define QUIT(x)         {fprintf x; exit(-1);}</span>
<a name="l00059"></a>00059 <span class="preprocessor"></span>
<a name="l00060"></a>00060 
<a name="l00061"></a>00061 <a class="code" href="structad__rec__t.html">ad_rec_t</a> *
<a name="l00062"></a>00062 <a class="code" href="ad_8h.html#a43f66257a2457d6c711dc5c694bfc02f" title="Open a specific audio device for recording.">ad_open_dev</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *dev, int32 samples_per_sec)
<a name="l00063"></a>00063 {
<a name="l00064"></a>00064     fprintf(stderr, <span class="stringliteral">&quot;A/D library not implemented\n&quot;</span>);
<a name="l00065"></a>00065     <span class="keywordflow">return</span> NULL;
<a name="l00066"></a>00066 }
<a name="l00067"></a>00067 
<a name="l00068"></a>00068 
<a name="l00069"></a>00069 <a class="code" href="structad__rec__t.html">ad_rec_t</a> *
<a name="l00070"></a>00070 <a class="code" href="ad_8h.html#a71b4eec805fbe5c398ea0897816de6f0" title="Open the default audio device with a given sampling rate.">ad_open_sps</a>(int32 samples_per_sec)
<a name="l00071"></a>00071 {
<a name="l00072"></a>00072     fprintf(stderr, <span class="stringliteral">&quot;A/D library not implemented\n&quot;</span>);
<a name="l00073"></a>00073     <span class="keywordflow">return</span> NULL;
<a name="l00074"></a>00074 }
<a name="l00075"></a>00075 
<a name="l00076"></a>00076 <a class="code" href="structad__rec__t.html">ad_rec_t</a> *
<a name="l00077"></a>00077 <a class="code" href="ad_8h.html#a3def0da951e840fb4c72ef9259540686" title="Open the default audio device.">ad_open</a>(<span class="keywordtype">void</span>)
<a name="l00078"></a>00078 {
<a name="l00079"></a>00079     <span class="keywordflow">return</span> <a class="code" href="ad_8h.html#a71b4eec805fbe5c398ea0897816de6f0" title="Open the default audio device with a given sampling rate.">ad_open_sps</a>(DEFAULT_SAMPLES_PER_SEC);
<a name="l00080"></a>00080 }
<a name="l00081"></a>00081 
<a name="l00082"></a>00082 
<a name="l00083"></a>00083 int32
<a name="l00084"></a>00084 ad_start_rec(<a class="code" href="structad__rec__t.html">ad_rec_t</a> * r)
<a name="l00085"></a>00085 {
<a name="l00086"></a>00086     <span class="keywordflow">return</span> -1;
<a name="l00087"></a>00087 }
<a name="l00088"></a>00088 
<a name="l00089"></a>00089 
<a name="l00090"></a>00090 int32
<a name="l00091"></a>00091 ad_stop_rec(<a class="code" href="structad__rec__t.html">ad_rec_t</a> * r)
<a name="l00092"></a>00092 {
<a name="l00093"></a>00093     <span class="keywordflow">return</span> -1;
<a name="l00094"></a>00094 }
<a name="l00095"></a>00095 
<a name="l00096"></a>00096 
<a name="l00097"></a>00097 int32
<a name="l00098"></a>00098 ad_read(<a class="code" href="structad__rec__t.html">ad_rec_t</a> * r, int16 * buf, int32 max)
<a name="l00099"></a>00099 {
<a name="l00100"></a>00100     <span class="keywordflow">return</span> -1;
<a name="l00101"></a>00101 }
<a name="l00102"></a>00102 
<a name="l00103"></a>00103 
<a name="l00104"></a>00104 int32
<a name="l00105"></a>00105 ad_close(<a class="code" href="structad__rec__t.html">ad_rec_t</a> * r)
<a name="l00106"></a>00106 {
<a name="l00107"></a>00107     <span class="keywordflow">return</span> 0;
<a name="l00108"></a>00108 }
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