view code-docs/FFT_8h_source.html @ 6:27319718b1f8 vamp-plugin-sdk-v2.7

Update code docs to v2.7 SDK
author Chris Cannam
date Fri, 24 Feb 2017 16:44:47 +0000
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<a href="FFT_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;</div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">/*</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">    Vamp</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment">    An API for audio analysis and feature extraction plugins.</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment">    Centre for Digital Music, Queen Mary, University of London.</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment">    Copyright 2006-2012 Chris Cannam and QMUL.</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment">  </span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment">    Permission is hereby granted, free of charge, to any person</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment">    obtaining a copy of this software and associated documentation</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment">    files (the &quot;Software&quot;), to deal in the Software without</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment">    restriction, including without limitation the rights to use, copy,</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment">    modify, merge, publish, distribute, sublicense, and/or sell copies</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment">    of the Software, and to permit persons to whom the Software is</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="comment">    furnished to do so, subject to the following conditions:</span></div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="comment">    The above copyright notice and this permission notice shall be</span></div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="comment">    included in all copies or substantial portions of the Software.</span></div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="comment">    THE SOFTWARE IS PROVIDED &quot;AS IS&quot;, WITHOUT WARRANTY OF ANY KIND,</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="comment">    EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="comment">    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND</span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="comment">    NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR</span></div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="comment">    ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF</span></div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;<span class="comment">    CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION</span></div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="comment">    WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.</span></div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="comment"></span></div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="comment">    Except as contained in this notice, the names of the Centre for</span></div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="comment">    Digital Music; Queen Mary, University of London; and Chris Cannam</span></div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="comment">    shall not be used in advertising or otherwise to promote the sale,</span></div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="comment">    use or other dealings in this Software without prior written</span></div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="comment">    authorization.</span></div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="comment">*/</span></div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;</div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="preprocessor">#ifndef _VAMP_FFT_H_</span></div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="preprocessor">#define _VAMP_FFT_H_</span></div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;</div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="plugguard_8h.html">plugguard.h</a>&quot;</span></div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;<a class="code" href="plugguard_8h.html#a1a2724ea453971288d3218e4eab3072c">_VAMP_SDK_PLUGSPACE_BEGIN</a>(FFT.h)</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;</div><div class="line"><a name="l00043"></a><span class="lineno"><a class="line" href="namespaceVamp.html">   43</a></span>&#160;namespace <a class="code" href="namespaceVamp.html">Vamp</a> {</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;</div><div class="line"><a name="l00059"></a><span class="lineno"><a class="line" href="classVamp_1_1FFT.html">   59</a></span>&#160;<span class="keyword">class </span><a class="code" href="classVamp_1_1FFT.html">FFT</a></div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;{</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;    <span class="keyword">static</span> <span class="keywordtype">void</span> forward(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> n,</div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;                        <span class="keyword">const</span> <span class="keywordtype">double</span> *ri, <span class="keyword">const</span> <span class="keywordtype">double</span> *ii,</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;                        <span class="keywordtype">double</span> *ro, <span class="keywordtype">double</span> *io);</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;    <span class="keyword">static</span> <span class="keywordtype">void</span> inverse(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> n,</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;                        <span class="keyword">const</span> <span class="keywordtype">double</span> *ri, <span class="keyword">const</span> <span class="keywordtype">double</span> *ii,</div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;                        <span class="keywordtype">double</span> *ro, <span class="keywordtype">double</span> *io);</div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;};</div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;</div><div class="line"><a name="l00109"></a><span class="lineno"><a class="line" href="classVamp_1_1FFTComplex.html">  109</a></span>&#160;<span class="keyword">class </span><a class="code" href="classVamp_1_1FFTComplex.html">FFTComplex</a></div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;{</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;    <a class="code" href="classVamp_1_1FFTComplex.html">FFTComplex</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> n);</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;</div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;    ~<a class="code" href="classVamp_1_1FFTComplex.html">FFTComplex</a>();</div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;</div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;    <span class="keywordtype">void</span> forward(<span class="keyword">const</span> <span class="keywordtype">double</span> *ci, <span class="keywordtype">double</span> *co);</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;</div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;    <span class="keywordtype">void</span> inverse(<span class="keyword">const</span> <span class="keywordtype">double</span> *ci, <span class="keywordtype">double</span> *co);</div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;</div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;<span class="keyword">private</span>:</div><div class="line"><a name="l00144"></a><span class="lineno"><a class="line" href="classVamp_1_1FFTComplex.html#aa521eef4194d91d2c48d07ed5f6d7f5f">  144</a></span>&#160;    <span class="keyword">class </span>D;</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;    D *<a class="code" href="classVamp_1_1FFTComplex.html#aa521eef4194d91d2c48d07ed5f6d7f5f">m_d</a>;</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;};</div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;</div><div class="line"><a name="l00161"></a><span class="lineno"><a class="line" href="classVamp_1_1FFTReal.html">  161</a></span>&#160;<span class="keyword">class </span><a class="code" href="classVamp_1_1FFTReal.html">FFTReal</a></div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;{</div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;<span class="keyword">public</span>:</div><div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;    <a class="code" href="classVamp_1_1FFTReal.html">FFTReal</a>(<span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> n);</div><div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;</div><div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;    ~<a class="code" href="classVamp_1_1FFTReal.html">FFTReal</a>();</div><div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;</div><div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;    <span class="keywordtype">void</span> forward(<span class="keyword">const</span> <span class="keywordtype">double</span> *ri, <span class="keywordtype">double</span> *co);</div><div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;</div><div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;    <span class="keywordtype">void</span> inverse(<span class="keyword">const</span> <span class="keywordtype">double</span> *ci, <span class="keywordtype">double</span> *ro);</div><div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;</div><div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;<span class="keyword">private</span>:</div><div class="line"><a name="l00195"></a><span class="lineno"><a class="line" href="classVamp_1_1FFTReal.html#a7161d0e61886644b362392fa7df03104">  195</a></span>&#160;    <span class="keyword">class </span>D;</div><div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;    D *<a class="code" href="classVamp_1_1FFTReal.html#a7161d0e61886644b362392fa7df03104">m_d</a>;</div><div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;};</div><div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;</div><div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;}</div><div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;</div><div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;<a class="code" href="plugguard_8h.html#ac879bb1077ecc6132ea3581ef9033753">_VAMP_SDK_PLUGSPACE_END</a>(<a class="code" href="classVamp_1_1FFT.html">FFT</a>.h)</div><div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;</div><div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;<span class="preprocessor">#endif</span></div><div class="ttc" id="namespaceVamp_html"><div class="ttname"><a href="namespaceVamp.html">Vamp</a></div><div class="ttdef"><b>Definition:</b> <a href="FFT_8h_source.html#l00043">FFT.h:43</a></div></div>
<div class="ttc" id="classVamp_1_1FFTReal_html"><div class="ttname"><a href="classVamp_1_1FFTReal.html">Vamp::FFTReal</a></div><div class="ttdoc">A simple FFT implementation provided for convenience of plugin authors. </div><div class="ttdef"><b>Definition:</b> <a href="FFT_8h_source.html#l00161">FFT.h:161</a></div></div>
<div class="ttc" id="classVamp_1_1FFTComplex_html"><div class="ttname"><a href="classVamp_1_1FFTComplex.html">Vamp::FFTComplex</a></div><div class="ttdoc">A simple FFT implementation provided for convenience of plugin authors. </div><div class="ttdef"><b>Definition:</b> <a href="FFT_8h_source.html#l00109">FFT.h:109</a></div></div>
<div class="ttc" id="classVamp_1_1FFTReal_html_a7161d0e61886644b362392fa7df03104"><div class="ttname"><a href="classVamp_1_1FFTReal.html#a7161d0e61886644b362392fa7df03104">Vamp::FFTReal::m_d</a></div><div class="ttdeci">D * m_d</div><div class="ttdef"><b>Definition:</b> <a href="FFT_8h_source.html#l00195">FFT.h:195</a></div></div>
<div class="ttc" id="plugguard_8h_html_a1a2724ea453971288d3218e4eab3072c"><div class="ttname"><a href="plugguard_8h.html#a1a2724ea453971288d3218e4eab3072c">_VAMP_SDK_PLUGSPACE_BEGIN</a></div><div class="ttdeci">#define _VAMP_SDK_PLUGSPACE_BEGIN(h)</div><div class="ttdef"><b>Definition:</b> <a href="plugguard_8h_source.html#l00079">plugguard.h:79</a></div></div>
<div class="ttc" id="classVamp_1_1FFT_html"><div class="ttname"><a href="classVamp_1_1FFT.html">Vamp::FFT</a></div><div class="ttdoc">A simple FFT implementation provided for convenience of plugin authors. </div><div class="ttdef"><b>Definition:</b> <a href="FFT_8h_source.html#l00059">FFT.h:59</a></div></div>
<div class="ttc" id="plugguard_8h_html_ac879bb1077ecc6132ea3581ef9033753"><div class="ttname"><a href="plugguard_8h.html#ac879bb1077ecc6132ea3581ef9033753">_VAMP_SDK_PLUGSPACE_END</a></div><div class="ttdeci">#define _VAMP_SDK_PLUGSPACE_END(h)</div><div class="ttdef"><b>Definition:</b> <a href="plugguard_8h_source.html#l00080">plugguard.h:80</a></div></div>
<div class="ttc" id="classVamp_1_1FFTComplex_html_aa521eef4194d91d2c48d07ed5f6d7f5f"><div class="ttname"><a href="classVamp_1_1FFTComplex.html#aa521eef4194d91d2c48d07ed5f6d7f5f">Vamp::FFTComplex::m_d</a></div><div class="ttdeci">D * m_d</div><div class="ttdef"><b>Definition:</b> <a href="FFT_8h_source.html#l00144">FFT.h:144</a></div></div>
<div class="ttc" id="plugguard_8h_html"><div class="ttname"><a href="plugguard_8h.html">plugguard.h</a></div></div>
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