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Update code docs to v2.7 SDK
author Chris Cannam
date Fri, 24 Feb 2017 16:44:47 +0000
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29 &#160;<span id="projectnumber">2.7</span>
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62 <div class="summary">
63 <a href="#pub-methods">Public Member Functions</a> &#124;
64 <a href="#pri-attribs">Private Attributes</a> &#124;
65 <a href="classVamp_1_1FFTReal-members.html">List of all members</a> </div>
66 <div class="headertitle">
67 <div class="title">Vamp::FFTReal Class Reference</div> </div>
68 </div><!--header-->
69 <div class="contents">
70
71 <p>A simple <a class="el" href="classVamp_1_1FFT.html" title="A simple FFT implementation provided for convenience of plugin authors. ">FFT</a> implementation provided for convenience of plugin authors.
72 <a href="classVamp_1_1FFTReal.html#details">More...</a></p>
73
74 <p><code>#include &lt;<a class="el" href="FFT_8h_source.html">FFT.h</a>&gt;</code></p>
75 <table class="memberdecls">
76 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
77 Public Member Functions</h2></td></tr>
78 <tr class="memitem:a322be62b02d4dce71271d1b6af69310d"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classVamp_1_1FFTReal.html#a322be62b02d4dce71271d1b6af69310d">FFTReal</a> (unsigned int n)</td></tr>
79 <tr class="memdesc:a322be62b02d4dce71271d1b6af69310d"><td class="mdescLeft">&#160;</td><td class="mdescRight">Prepare to calculate transforms of size n. <a href="#a322be62b02d4dce71271d1b6af69310d">More...</a><br /></td></tr>
80 <tr class="separator:a322be62b02d4dce71271d1b6af69310d"><td class="memSeparator" colspan="2">&#160;</td></tr>
81 <tr class="memitem:ade37f8ce309792f154b6e3b20cc23ad1"><td class="memItemLeft" align="right" valign="top">&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classVamp_1_1FFTReal.html#ade37f8ce309792f154b6e3b20cc23ad1">~FFTReal</a> ()</td></tr>
82 <tr class="separator:ade37f8ce309792f154b6e3b20cc23ad1"><td class="memSeparator" colspan="2">&#160;</td></tr>
83 <tr class="memitem:a25dfbb5bf24bdc4da8409ffdc3d827da"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classVamp_1_1FFTReal.html#a25dfbb5bf24bdc4da8409ffdc3d827da">forward</a> (const double *ri, double *co)</td></tr>
84 <tr class="memdesc:a25dfbb5bf24bdc4da8409ffdc3d827da"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculate a forward transform of size n. <a href="#a25dfbb5bf24bdc4da8409ffdc3d827da">More...</a><br /></td></tr>
85 <tr class="separator:a25dfbb5bf24bdc4da8409ffdc3d827da"><td class="memSeparator" colspan="2">&#160;</td></tr>
86 <tr class="memitem:a95921330e3be266b59a4eb94c5879fbe"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classVamp_1_1FFTReal.html#a95921330e3be266b59a4eb94c5879fbe">inverse</a> (const double *ci, double *ro)</td></tr>
87 <tr class="memdesc:a95921330e3be266b59a4eb94c5879fbe"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculate an inverse transform of size n. <a href="#a95921330e3be266b59a4eb94c5879fbe">More...</a><br /></td></tr>
88 <tr class="separator:a95921330e3be266b59a4eb94c5879fbe"><td class="memSeparator" colspan="2">&#160;</td></tr>
89 </table><table class="memberdecls">
90 <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pri-attribs"></a>
91 Private Attributes</h2></td></tr>
92 <tr class="memitem:a7161d0e61886644b362392fa7df03104"><td class="memItemLeft" align="right" valign="top">D *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classVamp_1_1FFTReal.html#a7161d0e61886644b362392fa7df03104">m_d</a></td></tr>
93 <tr class="separator:a7161d0e61886644b362392fa7df03104"><td class="memSeparator" colspan="2">&#160;</td></tr>
94 </table>
95 <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
96 <div class="textblock"><p>A simple <a class="el" href="classVamp_1_1FFT.html" title="A simple FFT implementation provided for convenience of plugin authors. ">FFT</a> implementation provided for convenience of plugin authors. </p>
97 <p>This class provides transforms between double-precision real time-domain and double-precision complex frequency-domain data.</p>
98 <p>Note: If the SDK has been compiled with the SINGLE_PRECISION_FFT flag, then all FFTs will use single precision internally. The default is double precision. The API uses doubles in either case.</p>
99 <p>The forward transform is unscaled; the inverse transform is scaled by 1/n. </p>
100
101 <p class="definition">Definition at line <a class="el" href="FFT_8h_source.html#l00161">161</a> of file <a class="el" href="FFT_8h_source.html">FFT.h</a>.</p>
102 </div><h2 class="groupheader">Constructor &amp; Destructor Documentation</h2>
103 <a id="a322be62b02d4dce71271d1b6af69310d"></a>
104 <h2 class="memtitle"><span class="permalink"><a href="#a322be62b02d4dce71271d1b6af69310d">&#9670;&nbsp;</a></span>FFTReal()</h2>
105
106 <div class="memitem">
107 <div class="memproto">
108 <table class="memname">
109 <tr>
110 <td class="memname">Vamp::FFTReal::FFTReal </td>
111 <td>(</td>
112 <td class="paramtype">unsigned int&#160;</td>
113 <td class="paramname"><em>n</em></td><td>)</td>
114 <td></td>
115 </tr>
116 </table>
117 </div><div class="memdoc">
118
119 <p>Prepare to calculate transforms of size n. </p>
120 <p>n must be a multiple of 2. </p>
121
122 </div>
123 </div>
124 <a id="ade37f8ce309792f154b6e3b20cc23ad1"></a>
125 <h2 class="memtitle"><span class="permalink"><a href="#ade37f8ce309792f154b6e3b20cc23ad1">&#9670;&nbsp;</a></span>~FFTReal()</h2>
126
127 <div class="memitem">
128 <div class="memproto">
129 <table class="memname">
130 <tr>
131 <td class="memname">Vamp::FFTReal::~FFTReal </td>
132 <td>(</td>
133 <td class="paramname"></td><td>)</td>
134 <td></td>
135 </tr>
136 </table>
137 </div><div class="memdoc">
138
139 </div>
140 </div>
141 <h2 class="groupheader">Member Function Documentation</h2>
142 <a id="a25dfbb5bf24bdc4da8409ffdc3d827da"></a>
143 <h2 class="memtitle"><span class="permalink"><a href="#a25dfbb5bf24bdc4da8409ffdc3d827da">&#9670;&nbsp;</a></span>forward()</h2>
144
145 <div class="memitem">
146 <div class="memproto">
147 <table class="memname">
148 <tr>
149 <td class="memname">void Vamp::FFTReal::forward </td>
150 <td>(</td>
151 <td class="paramtype">const double *&#160;</td>
152 <td class="paramname"><em>ri</em>, </td>
153 </tr>
154 <tr>
155 <td class="paramkey"></td>
156 <td></td>
157 <td class="paramtype">double *&#160;</td>
158 <td class="paramname"><em>co</em>&#160;</td>
159 </tr>
160 <tr>
161 <td></td>
162 <td>)</td>
163 <td></td><td></td>
164 </tr>
165 </table>
166 </div><div class="memdoc">
167
168 <p>Calculate a forward transform of size n. </p>
169 <p>ri must point to the real input data of size n.</p>
170 <p>co must point to enough space to receive an interleaved complex output array of size n/2+1 (that is, n+2 doubles in total). </p>
171
172 </div>
173 </div>
174 <a id="a95921330e3be266b59a4eb94c5879fbe"></a>
175 <h2 class="memtitle"><span class="permalink"><a href="#a95921330e3be266b59a4eb94c5879fbe">&#9670;&nbsp;</a></span>inverse()</h2>
176
177 <div class="memitem">
178 <div class="memproto">
179 <table class="memname">
180 <tr>
181 <td class="memname">void Vamp::FFTReal::inverse </td>
182 <td>(</td>
183 <td class="paramtype">const double *&#160;</td>
184 <td class="paramname"><em>ci</em>, </td>
185 </tr>
186 <tr>
187 <td class="paramkey"></td>
188 <td></td>
189 <td class="paramtype">double *&#160;</td>
190 <td class="paramname"><em>ro</em>&#160;</td>
191 </tr>
192 <tr>
193 <td></td>
194 <td>)</td>
195 <td></td><td></td>
196 </tr>
197 </table>
198 </div><div class="memdoc">
199
200 <p>Calculate an inverse transform of size n. </p>
201 <p>ci must point to an interleaved complex input array of size n/2+1 (that is, n+2 doubles in total).</p>
202 <p>ro must point to enough space to receive the real output data of size n. The output is scaled by 1/n and only the real part is returned. </p>
203
204 </div>
205 </div>
206 <h2 class="groupheader">Member Data Documentation</h2>
207 <a id="a7161d0e61886644b362392fa7df03104"></a>
208 <h2 class="memtitle"><span class="permalink"><a href="#a7161d0e61886644b362392fa7df03104">&#9670;&nbsp;</a></span>m_d</h2>
209
210 <div class="memitem">
211 <div class="memproto">
212 <table class="mlabels">
213 <tr>
214 <td class="mlabels-left">
215 <table class="memname">
216 <tr>
217 <td class="memname">D* Vamp::FFTReal::m_d</td>
218 </tr>
219 </table>
220 </td>
221 <td class="mlabels-right">
222 <span class="mlabels"><span class="mlabel">private</span></span> </td>
223 </tr>
224 </table>
225 </div><div class="memdoc">
226
227 <p class="definition">Definition at line <a class="el" href="FFT_8h_source.html#l00195">195</a> of file <a class="el" href="FFT_8h_source.html">FFT.h</a>.</p>
228
229 </div>
230 </div>
231 <hr/>The documentation for this class was generated from the following file:<ul>
232 <li><a class="el" href="FFT_8h_source.html">FFT.h</a></li>
233 </ul>
234 </div><!-- contents -->
235 </div><!-- doc-content -->
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238 <ul>
239 <li class="navelem"><a class="el" href="namespaceVamp.html">Vamp</a></li><li class="navelem"><a class="el" href="classVamp_1_1FFTReal.html">FFTReal</a></li>
240 <li class="footer">Generated by
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