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von raredesign | Dez 3, 2019 | Allgemein | 0 Kommentare
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<li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li><li class="navelem"><a class="el" href="dir_098894a2b9860dda60979d343b8f7997.html">Processing</a></li><li class="navelem"><a class="el" href="dir_3bb38452a33e18a9d5968b07586046b5.html">Analysis</a></li> </ul>
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<a href="FFT__ooura_8hxx.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment"> * Copyright (c) 2001-2004 MUSIC TECHNOLOGY GROUP (MTG)</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * UNIVERSITAT POMPEU FABRA</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> * This program is free software; you can redistribute it and/or modify</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * it under the terms of the GNU General Public License as published by</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * the Free Software Foundation; either version 2 of the License, or</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * (at your option) any later version.</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> * This program is distributed in the hope that it will be useful,</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * GNU General Public License for more details.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> * You should have received a copy of the GNU General Public License</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * along with this program; if not, write to the Free Software</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> </div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#ifndef _FFT_ooura_</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor"></span><span class="preprocessor">#define _FFT_ooura_</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include "<a class="code" href="FFT__base_8hxx.html">FFT_base.hxx</a>"</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include "<a class="code" href="DataTypes_8hxx.html">DataTypes.hxx</a>"</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include "<a class="code" href="SpecTypeFlags_8hxx.html">SpecTypeFlags.hxx</a>"</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include "<a class="code" href="ErrDynamicType_8hxx.html">ErrDynamicType.hxx</a>"</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">namespace </span>CLAM {</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> </div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keyword">struct </span>FFTConfig;</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keyword">class </span>Spectrum;</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keyword">class </span>Audio;</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keyword">class </span>ProcessingConfig;</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keyword">class </span>IFFT_ooura;</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div>
<div class="line"><a name="l00044"></a><span class="lineno"><a class="code" href="classCLAM_1_1FFT__ooura.html"> 44</a></span>  <span class="keyword">class </span><a class="code" href="classCLAM_1_1FFT__ooura.html" title="Implementation of the FFT using the algorithm from Takuya OOURA in C.">FFT_ooura</a>: <span class="keyword">public</span> <a class="code" href="classCLAM_1_1FFT__base.html" title="Abstract base class for FFT classes.">FFT_base</a></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  {</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  </div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordtype">int</span> *ip;</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> *w;</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordtype">bool</span> FFTConfigure();</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordtype">bool</span> ConcreteConfigure(<span class="keyword">const</span> <a class="code" href="classCLAM_1_1ProcessingConfig.html" title="This is an abstract class which serves as interface for configuration classes used as processing obje...">ProcessingConfig</a>&);</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span> </div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="comment">// Memory Management (for work areas and stuff)</span></div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordtype">void</span> ReleaseMemory();</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordtype">void</span> SetupMemory();</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span> </div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="comment">// Output conversions</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  <span class="keywordtype">void</span> ToComplex(<a class="code" href="classCLAM_1_1Spectrum.html" title="Spectrum is a ProcessingData class that allows the following representations: Mag/Phase, Complex, Polar and Break Point Function (BPF).">Spectrum</a> &out);</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordtype">void</span> ToOther(<a class="code" href="classCLAM_1_1Spectrum.html" title="Spectrum is a ProcessingData class that allows the following representations: Mag/Phase, Complex, Polar and Break Point Function (BPF).">Spectrum</a> &out);</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="comment">// FFTOOURA original functions, modified to accept</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="comment">// TData instead of double</span></div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classCLAM_1_1FFT__ooura.html#a98be5dcbaf2cdd1fcc6a6703fb26edd5">rdft</a>(<span class="keywordtype">int</span> n, <span class="keywordtype">int</span> isgn, <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> *a, <span class="keywordtype">int</span> *ip, <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> *w);</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classCLAM_1_1FFT__ooura.html#aebaa044b2bfc450e2c54cc7c22b84a05">makewt</a>(<span class="keywordtype">int</span> nw, <span class="keywordtype">int</span> *ip, <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> *w);</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classCLAM_1_1FFT__ooura.html#a60f4c5b3faa2a00e221d13d707a4fd10">makect</a>(<span class="keywordtype">int</span> nc, <span class="keywordtype">int</span> *ip, <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> *c);</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classCLAM_1_1FFT__ooura.html#abcb213614ebd59816c935fd0c234ab22">bitrv2</a>(<span class="keywordtype">int</span> n, <span class="keywordtype">int</span> *ip, <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> *a);</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classCLAM_1_1FFT__ooura.html#a134558fd54ca3494efd8c463450a09a3">cftfsub</a>(<span class="keywordtype">int</span> n, <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> *a, <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> *w);</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classCLAM_1_1FFT__ooura.html#ae70954564eee6177d7cb315c2ca53787">cftbsub</a>(<span class="keywordtype">int</span> n, <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> *a, <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> *w);</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classCLAM_1_1FFT__ooura.html#a882e0fe92718551f47649bc981d7c9a2">rftfsub</a>(<span class="keywordtype">int</span> n, <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> *a, <span class="keywordtype">int</span> nc, <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> *c);</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classCLAM_1_1FFT__ooura.html#a4ffaafd5b017f383d2d3a16785187d5f">rftbsub</a>(<span class="keywordtype">int</span> n, <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> *a, <span class="keywordtype">int</span> nc, <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> *c);</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classCLAM_1_1FFT__ooura.html#a54b431c3fced9d79a0ed3a5c37d2dd96">cft1st</a>(<span class="keywordtype">int</span> n, <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> *a, <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> *w);</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  <span class="keyword">static</span> <span class="keywordtype">void</span> <a class="code" href="classCLAM_1_1FFT__ooura.html#a96110256c64a8effcbd242e8837464f5">cftmdl</a>(<span class="keywordtype">int</span> n, <span class="keywordtype">int</span> l, <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> *a, <a class="code" href="namespaceCLAM.html#ab9c6321b061069797fcc173f61e8111a">TData</a> *w);</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span> </div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  </div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <a class="code" href="classCLAM_1_1FFT__ooura.html#a913f1f27d349f933db4f53cbef134693">FFT_ooura</a>();</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div>
<div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <a class="code" href="classCLAM_1_1FFT__ooura.html#a913f1f27d349f933db4f53cbef134693">FFT_ooura</a>(<span class="keyword">const</span> <a class="code" href="classCLAM_1_1FFTConfig.html" title="Configuration class for FFT classes.">FFTConfig</a> &c) <span class="keywordflow">throw</span>(<a class="code" href="classCLAM_1_1ErrDynamicType.html" title="Derived class of the Err base class Handles DynamicType errors.">ErrDynamicType</a>);</div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span> </div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <a class="code" href="classCLAM_1_1FFT__ooura.html#a6f6c29be74db71f55e54fc5a0229192f">~FFT_ooura</a>();</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span> </div>
<div class="line"><a name="l00090"></a><span class="lineno"><a class="code" href="classCLAM_1_1FFT__ooura.html#a049681670a3975abeaac1af14a2c68d0"> 90</a></span>  <span class="keyword">const</span> <span class="keywordtype">char</span> * <a class="code" href="classCLAM_1_1FFT__ooura.html#a049681670a3975abeaac1af14a2c68d0" title="Override it in every subclass and retur the name of that class.">GetClassName</a>()<span class="keyword"> const </span>{<span class="keywordflow">return</span> <span class="stringliteral">"FFT_ooura"</span>;}</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> </div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <span class="comment">// Execution methods</span></div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span> </div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  <span class="keywordtype">bool</span> <a class="code" href="classCLAM_1_1FFT__ooura.html#ade56272c0266a5fbc3f2e00775e5629e" title="Supervised-mode Do function.">Do</a>();</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordtype">bool</span> <a class="code" href="classCLAM_1_1FFT__ooura.html#ade56272c0266a5fbc3f2e00775e5629e" title="Supervised-mode Do function.">Do</a>(<span class="keyword">const</span> <a class="code" href="classCLAM_1_1Audio.html" title="Audio class with the Data Buffer, information about it (SampleRate, BeginTime), and methods to insert...">Audio</a>& in, <a class="code" href="classCLAM_1_1Spectrum.html" title="Spectrum is a ProcessingData class that allows the following representations: Mag/Phase, Complex, Polar and Break Point Function (BPF).">Spectrum</a> &out);</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span> </div>
<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  </div>
<div class="line"><a name="l00099"></a><span class="lineno"><a class="code" href="classCLAM_1_1FFT__ooura.html#aceb98de1ff2877fa3a3225e8d41fac30"> 99</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classCLAM_1_1FFT__ooura.html#aceb98de1ff2877fa3a3225e8d41fac30">MayDisableExecution</a>()<span class="keyword"> const </span>{<span class="keywordflow">return</span> <span class="keyword">true</span>;}</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span> </div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  };</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span> </div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span> };<span class="comment">//namespace CLAM</span></div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span> </div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span> <span class="preprocessor">#endif // _FFT_numrec_</span></div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="preprocessor"></span></div>
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