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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1"><title>aflibConverter.h Source File</title><link href="doxygen.css" rel="stylesheet" type="text/css"></head><body><!-- Generated by Doxygen 1.2.15 --><center><a class="qindex" href="index.html">Main Page</a> <a class="qindex" href="hierarchy.html">Class Hierarchy</a> <a class="qindex" href="annotated.html">Compound List</a> <a class="qindex" href="files.html">File List</a> <a class="qindex" href="functions.html">Compound Members</a> <a class="qindex" href="globals.html">File Members</a> </center><hr><h1>aflibConverter.h</h1><a href="aflibConverter_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre>00001 <font class="comment">/*</font>00002 <font class="comment"> * Copyright: (C) 2000 Julius O. Smith</font>00003 <font class="comment"> *</font>00004 <font class="comment"> * This library is free software; you can redistribute it and/or</font>00005 <font class="comment"> * modify it under the terms of the GNU Lesser General Public</font>00006 <font class="comment"> * License as published by the Free Software Foundation; either</font>00007 <font class="comment"> * version 2.1 of the License, or any later version.</font>00008 <font class="comment"> *</font>00009 <font class="comment"> * This library is distributed in the hope that it will be useful,</font>00010 <font class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</font>00011 <font class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU</font>00012 <font class="comment"> * Lesser General Public License for more details.</font>00013 <font class="comment"> *</font>00014 <font class="comment"> * You should have received a copy of the GNU Lesser General Public</font>00015 <font class="comment"> * License along with this library; if not, write to the Free Software</font>00016 <font class="comment"> * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</font>00017 <font class="comment"> *</font>00018 <font class="comment"> * Julius O. Smith jos@ccrma.stanford.edu</font>00019 <font class="comment"> *</font>00020 <font class="comment"> */</font>00021 <font class="comment">/* This code was modified by Bruce Forsberg (forsberg@tns.net) to make it</font>00022 <font class="comment"> into a C++ class</font>00023 <font class="comment">*/</font>00024 00025 00026 <font class="preprocessor">#ifndef _AFLIBCONVERTER_H_</font>00027 <font class="preprocessor"></font><font class="preprocessor">#define _AFLIBCONVERTER_H_</font>00028 <font class="preprocessor"></font>00029 <font class="preprocessor">#ifdef HAVE_CONFIG_H</font>00030 <font class="preprocessor"></font><font class="preprocessor">#include <config.h></font>00031 <font class="preprocessor">#endif</font>00032 <font class="preprocessor"></font>00033 <font class="preprocessor">#ifndef MAX</font><a name="l00034"></a><a class="code" href="aflibConverter_8h.html#a0">00034</a> <font class="preprocessor"></font><font class="preprocessor">#define MAX(x,y) ((x)>(y) ?(x):(y))</font>00035 <font class="preprocessor"></font><font class="preprocessor">#endif</font>00036 <font class="preprocessor"></font><font class="preprocessor">#ifndef MIN</font><a name="l00037"></a><a class="code" href="aflibConverter_8h.html#a1">00037</a> <font class="preprocessor"></font><font class="preprocessor">#define MIN(x,y) ((x)<(y) ?(x):(y))</font>00038 <font class="preprocessor"></font><font class="preprocessor">#endif</font>00039 <font class="preprocessor"></font><a name="l00040"></a><a class="code" href="aflibConverter_8h.html#a2">00040</a> <font class="preprocessor">#define MAX_HWORD (32767)</font><a name="l00041"></a><a class="code" href="aflibConverter_8h.html#a3">00041</a> <font class="preprocessor"></font><font class="preprocessor">#define MIN_HWORD (-32768)</font>00042 <font class="preprocessor"></font><a name="l00043"></a><a class="code" href="aflibConverter_8h.html#a4">00043</a> <font class="preprocessor">#define IBUFFSIZE 4096 </font><font class="comment">/* Input buffer size */</font>00044 00075 <font class="keyword">class </font><a class="code" href="classaflibData.html">aflibData</a>;00076 00077 <font class="keyword">class </font><a class="code" href="classaflibConverter.html">aflibConverter</a> {00078 00079 <font class="keyword">public</font>:00080 00081 <font class="comment">// Available contructors and destructors</font>00082 <a class="code" href="classaflibConverter.html#a0">aflibConverter</a> (00083 <font class="keywordtype">bool</font> high_quality,00084 <font class="keywordtype">bool</font> linear_interpolation,00085 <font class="keywordtype">bool</font> filter_interpolation);00086 00087 <a class="code" href="classaflibConverter.html#a1">~aflibConverter</a>();00088 00089 <font class="keywordtype">void</font>00090 <a class="code" href="classaflibConverter.html#a2">initialize</a>(00091 <font class="keywordtype">double</font> factor, <font class="comment">/* factor = Sndout/Sndin */</font>00092 <font class="keywordtype">int</font> channels, <font class="comment">/* number of sound channels */</font>00093 <font class="keywordtype">double</font> volume = 1.0); <font class="comment">/* factor to multiply amplitude */</font>00094 00095 <font class="keywordtype">int</font>00096 <a class="code" href="classaflibConverter.html#a3">resample</a>( <font class="comment">/* number of output samples returned */</font>00097 <font class="keywordtype">int</font>& inCount, <font class="comment">/* number of input samples to convert */</font>00098 <font class="keywordtype">int</font> outCount, <font class="comment">/* number of output samples to compute */</font>00099 <font class="keywordtype">short</font> inArray[], <font class="comment">/* input array data (length inCount * nChans) */</font>00100 <font class="keywordtype">short</font> outArray[]);<font class="comment">/* output array data (length outCount * nChans) */</font>00101 00102 00103 <font class="keyword">private</font>:00104 00105 <a class="code" href="classaflibConverter.html#a0">aflibConverter</a>();00106 00107 <a class="code" href="classaflibConverter.html#a0">aflibConverter</a>(<font class="keyword">const</font> <a class="code" href="classaflibConverter.html">aflibConverter</a>& op);00108 00109 <font class="keyword">const</font> <a class="code" href="classaflibConverter.html">aflibConverter</a>&00110 operator=(<font class="keyword">const</font> <a class="code" href="classaflibConverter.html">aflibConverter</a>& op);00111 00112 <font class="keywordtype">int</font>00113 err_ret(<font class="keywordtype">char</font> *s);00114 00115 <font class="keywordtype">void</font>00116 deleteMemory();00117 00118 <font class="keywordtype">int</font>00119 readData(00120 <font class="keywordtype">int</font> inCount, <font class="comment">/* _total_ number of frames in input file */</font>00121 <font class="keywordtype">short</font> inArray[], <font class="comment">/* input data */</font>00122 <font class="keywordtype">short</font> *outPtr[], <font class="comment">/* array receiving chan samps */</font>00123 <font class="keywordtype">int</font> dataArraySize, <font class="comment">/* size of these arrays */</font>00124 <font class="keywordtype">int</font> Xoff, <font class="comment">/* read into input array starting at this index */</font>00125 <font class="keywordtype">bool</font> init_count);00126 00127 00128 <font class="keyword">inline</font> <font class="keywordtype">short</font>00129 WordToHword(<font class="keywordtype">int</font> v, <font class="keywordtype">int</font> scl)00130 {00131 <font class="keywordtype">short</font> out;00132 <font class="keywordtype">int</font> llsb = (1<<(scl-1));00133 v += llsb; <font class="comment">/* round */</font>⌨️ 快捷键说明
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