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view code-docs/ZeroCrossing_8cpp_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 |
| parents | 5c2683745b33 |
| children |
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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.13"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>VampPluginSDK: ZeroCrossing.cpp Source File</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="navtree.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="resize.js"></script> <script type="text/javascript" src="navtreedata.js"></script> <script type="text/javascript" src="navtree.js"></script> <script type="text/javascript"> $(document).ready(initResizable); </script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td id="projectalign" style="padding-left: 0.5em;"> <div id="projectname">VampPluginSDK  <span id="projectnumber">2.7</span> </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.13 --> <script type="text/javascript" src="menudata.js"></script> <script type="text/javascript" src="menu.js"></script> <script type="text/javascript"> $(function() { initMenu('',false,false,'search.php','Search'); }); </script> <div id="main-nav"></div> </div><!-- top --> <div id="side-nav" class="ui-resizable side-nav-resizable"> <div id="nav-tree"> <div id="nav-tree-contents"> <div id="nav-sync" class="sync"></div> </div> </div> <div id="splitbar" style="-moz-user-select:none;" class="ui-resizable-handle"> </div> </div> <script type="text/javascript"> $(document).ready(function(){initNavTree('ZeroCrossing_8cpp_source.html','');}); </script> <div id="doc-content"> <div class="header"> <div class="headertitle"> <div class="title">ZeroCrossing.cpp</div> </div> </div><!--header--> <div class="contents"> <a href="ZeroCrossing_8cpp.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">/* -*- 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> </div><div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">/*</span></div><div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> Vamp</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"> An API for audio analysis and feature extraction plugins.</span></div><div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"></span></div><div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <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> <span class="comment"> Copyright 2006 Chris Cannam.</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"> Permission is hereby granted, free of charge, to any person</span></div><div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <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> <span class="comment"> files (the "Software"), to deal in the Software without</span></div><div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <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> <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> <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> <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> <span class="comment"></span></div><div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <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> <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> <span class="comment"></span></div><div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment"> THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,</span></div><div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <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> <span class="comment"> MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND</span></div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <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> <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> <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> <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> <span class="comment"></span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <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> <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> <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> <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> <span class="comment"> authorization.</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment">*/</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="preprocessor">#include "<a class="code" href="ZeroCrossing_8h.html">ZeroCrossing.h</a>"</span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="keyword">using</span> std::string;</div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="keyword">using</span> std::vector;</div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="keyword">using</span> std::cerr;</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="keyword">using</span> std::endl;</div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#include <cmath></span></div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor">#include <algorithm></span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div><div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="classZeroCrossing.html#a9855153a54bdc9ba75cc1a705a149473"> 47</a></span> <a class="code" href="classZeroCrossing.html#a9855153a54bdc9ba75cc1a705a149473">ZeroCrossing::ZeroCrossing</a>(<span class="keywordtype">float</span> inputSampleRate) :</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  Plugin(inputSampleRate),</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  m_stepSize(0),</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  m_previousSample(0.0f)</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> {</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> }</div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div><div class="line"><a name="l00054"></a><span class="lineno"><a class="line" href="classZeroCrossing.html#af1de0da862e6e2443581e4e16044675b"> 54</a></span> <a class="code" href="classZeroCrossing.html#af1de0da862e6e2443581e4e16044675b">ZeroCrossing::~ZeroCrossing</a>()</div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> {</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> </div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="keywordtype">string</span></div><div class="line"><a name="l00059"></a><span class="lineno"><a class="line" href="classZeroCrossing.html#af5049a01a3f003f17a45c61b599c6543"> 59</a></span> <a class="code" href="classZeroCrossing.html#af5049a01a3f003f17a45c61b599c6543">ZeroCrossing::getIdentifier</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="keyword"></span>{</div><div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  <span class="keywordflow">return</span> <span class="stringliteral">"zerocrossing"</span>;</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> </div><div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="keywordtype">string</span></div><div class="line"><a name="l00065"></a><span class="lineno"><a class="line" href="classZeroCrossing.html#a191365f793e6488d02d57029eb14deb2"> 65</a></span> <a class="code" href="classZeroCrossing.html#a191365f793e6488d02d57029eb14deb2">ZeroCrossing::getName</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="keyword"></span>{</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keywordflow">return</span> <span class="stringliteral">"Zero Crossings"</span>;</div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> }</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> </div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="keywordtype">string</span></div><div class="line"><a name="l00071"></a><span class="lineno"><a class="line" href="classZeroCrossing.html#a7ba1cfd102a427f8333ddfa2fe234d58"> 71</a></span> <a class="code" href="classZeroCrossing.html#a7ba1cfd102a427f8333ddfa2fe234d58">ZeroCrossing::getDescription</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="keyword"></span>{</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordflow">return</span> <span class="stringliteral">"Detect and count zero crossing points"</span>;</div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> }</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> </div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="keywordtype">string</span></div><div class="line"><a name="l00077"></a><span class="lineno"><a class="line" href="classZeroCrossing.html#a9ddf295d977b6c64d8acd34b7e0ce1b0"> 77</a></span> <a class="code" href="classZeroCrossing.html#a9ddf295d977b6c64d8acd34b7e0ce1b0">ZeroCrossing::getMaker</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="keyword"></span>{</div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  <span class="keywordflow">return</span> <span class="stringliteral">"Vamp SDK Example Plugins"</span>;</div><div class="line"><a name="l00080"></a><span class="lineno"> 80</span> }</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> <span class="keywordtype">int</span></div><div class="line"><a name="l00083"></a><span class="lineno"><a class="line" href="classZeroCrossing.html#a4199350192d84a4ec5f379805cd3e7cf"> 83</a></span> <a class="code" href="classZeroCrossing.html#a4199350192d84a4ec5f379805cd3e7cf">ZeroCrossing::getPluginVersion</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="keyword"></span>{</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span>  <span class="keywordflow">return</span> 2;</div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> }</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> <span class="keywordtype">string</span></div><div class="line"><a name="l00089"></a><span class="lineno"><a class="line" href="classZeroCrossing.html#af955fb85b26a5497690aecbd288975f2"> 89</a></span> <a class="code" href="classZeroCrossing.html#af955fb85b26a5497690aecbd288975f2">ZeroCrossing::getCopyright</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="keyword"></span>{</div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  <span class="keywordflow">return</span> <span class="stringliteral">"Freely redistributable (BSD license)"</span>;</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</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></div><div class="line"><a name="l00095"></a><span class="lineno"><a class="line" href="classZeroCrossing.html#af21bbcc87a6eb7875dfab7d86222dccc"> 95</a></span> <a class="code" href="classZeroCrossing.html#af21bbcc87a6eb7875dfab7d86222dccc">ZeroCrossing::initialise</a>(<span class="keywordtype">size_t</span> channels, <span class="keywordtype">size_t</span> stepSize, <span class="keywordtype">size_t</span> blockSize)</div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span> {</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordflow">if</span> (channels < <a class="code" href="classVamp_1_1Plugin.html#ab74f7634c6ac6e3da115667808a79c30">getMinChannelCount</a>() ||</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  channels > <a class="code" href="classVamp_1_1Plugin.html#a0bff9464bc8c117470136c396b2405dd">getMaxChannelCount</a>()) <span class="keywordflow">return</span> <span class="keyword">false</span>;</div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> </div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <a class="code" href="classZeroCrossing.html#a584f100b87c78f9af9da040d79567d52">m_stepSize</a> = std::min(stepSize, blockSize);</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>  <span class="keywordflow">return</span> <span class="keyword">true</span>;</div><div class="line"><a name="l00103"></a><span class="lineno"> 103</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="keywordtype">void</span></div><div class="line"><a name="l00106"></a><span class="lineno"><a class="line" href="classZeroCrossing.html#a9ae6c4a31ea027dceb1e97ead807e228"> 106</a></span> <a class="code" href="classZeroCrossing.html#a9ae6c4a31ea027dceb1e97ead807e228">ZeroCrossing::reset</a>()</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> {</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <a class="code" href="classZeroCrossing.html#a0f2d9f2cab0a8a30344e1f2c0ebb8ee8">m_previousSample</a> = 0.0f;</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> }</div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> </div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span> <a class="code" href="classVamp_1_1Plugin.html#a30f531b8fb69fac41a24e3d2a6a08ed9">ZeroCrossing::OutputList</a></div><div class="line"><a name="l00112"></a><span class="lineno"><a class="line" href="classZeroCrossing.html#ab83cfab3f9674920e295c2f3571bb24e"> 112</a></span> <a class="code" href="classZeroCrossing.html#ab83cfab3f9674920e295c2f3571bb24e">ZeroCrossing::getOutputDescriptors</a>()<span class="keyword"> const</span></div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span> <span class="keyword"></span>{</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <a class="code" href="classVamp_1_1Plugin.html#a30f531b8fb69fac41a24e3d2a6a08ed9">OutputList</a> list;</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span> </div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <a class="code" href="structVamp_1_1Plugin_1_1OutputDescriptor.html">OutputDescriptor</a> zc;</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  zc.<a class="code" href="structVamp_1_1Plugin_1_1OutputDescriptor.html#ae2c893ddb1860589517ab7eaa989a18b">identifier</a> = <span class="stringliteral">"counts"</span>;</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  zc.<a class="code" href="structVamp_1_1Plugin_1_1OutputDescriptor.html#ab824b2b34ee50f897a30901c620e8d87">name</a> = <span class="stringliteral">"Zero Crossing Counts"</span>;</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span>  zc.<a class="code" href="structVamp_1_1Plugin_1_1OutputDescriptor.html#af9b4fe8f78e7126ead820ba5dc55efd1">description</a> = <span class="stringliteral">"The number of zero crossing points per processing block"</span>;</div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  zc.<a class="code" href="structVamp_1_1Plugin_1_1OutputDescriptor.html#aa057a8833fa037f06ac9f7b85b85d5e4">unit</a> = <span class="stringliteral">"crossings"</span>;</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  zc.<a class="code" href="structVamp_1_1Plugin_1_1OutputDescriptor.html#af0e577e1a256ff6eed6ea42133fec77d">hasFixedBinCount</a> = <span class="keyword">true</span>;</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  zc.<a class="code" href="structVamp_1_1Plugin_1_1OutputDescriptor.html#afdd006959a995e40ef7d565a3a4df6dc">binCount</a> = 1;</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  zc.<a class="code" href="structVamp_1_1Plugin_1_1OutputDescriptor.html#ae9ccb65f99f477096b65dd031f4c5e31">hasKnownExtents</a> = <span class="keyword">false</span>;</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  zc.<a class="code" href="structVamp_1_1Plugin_1_1OutputDescriptor.html#a1b4858928d23bfd7d5bc557c82a83fb4">isQuantized</a> = <span class="keyword">true</span>;</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  zc.<a class="code" href="structVamp_1_1Plugin_1_1OutputDescriptor.html#a3bed37153067b625b95acb40b60dbf0b">quantizeStep</a> = 1.0;</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  zc.<a class="code" href="structVamp_1_1Plugin_1_1OutputDescriptor.html#a0d1194980d44e31b25ef3b4b070d6b5d">sampleType</a> = <a class="code" href="structVamp_1_1Plugin_1_1OutputDescriptor.html#abffa9ed50cd756df70fd51f0355f448ca0459d5d0d2198d21e8bc90abe4fdccca">OutputDescriptor::OneSamplePerStep</a>;</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  list.push_back(zc);</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  zc.<a class="code" href="structVamp_1_1Plugin_1_1OutputDescriptor.html#ae2c893ddb1860589517ab7eaa989a18b">identifier</a> = <span class="stringliteral">"zerocrossings"</span>;</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  zc.<a class="code" href="structVamp_1_1Plugin_1_1OutputDescriptor.html#ab824b2b34ee50f897a30901c620e8d87">name</a> = <span class="stringliteral">"Zero Crossings"</span>;</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  zc.<a class="code" href="structVamp_1_1Plugin_1_1OutputDescriptor.html#af9b4fe8f78e7126ead820ba5dc55efd1">description</a> = <span class="stringliteral">"The locations of zero crossing points"</span>;</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  zc.<a class="code" href="structVamp_1_1Plugin_1_1OutputDescriptor.html#aa057a8833fa037f06ac9f7b85b85d5e4">unit</a> = <span class="stringliteral">""</span>;</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  zc.<a class="code" href="structVamp_1_1Plugin_1_1OutputDescriptor.html#af0e577e1a256ff6eed6ea42133fec77d">hasFixedBinCount</a> = <span class="keyword">true</span>;</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  zc.<a class="code" href="structVamp_1_1Plugin_1_1OutputDescriptor.html#afdd006959a995e40ef7d565a3a4df6dc">binCount</a> = 0;</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span>  zc.<a class="code" href="structVamp_1_1Plugin_1_1OutputDescriptor.html#a0d1194980d44e31b25ef3b4b070d6b5d">sampleType</a> = <a class="code" href="structVamp_1_1Plugin_1_1OutputDescriptor.html#abffa9ed50cd756df70fd51f0355f448cadea995a737867f7b22b52f1c43c5432e">OutputDescriptor::VariableSampleRate</a>;</div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  zc.<a class="code" href="structVamp_1_1Plugin_1_1OutputDescriptor.html#add0cbbdfa9c91764037c39365b1d42af">sampleRate</a> = <a class="code" href="classVamp_1_1Plugin.html#a59b9dd82a4f4eb946cd0474cc81abc23">m_inputSampleRate</a>;</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  list.push_back(zc);</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">return</span> list;</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> }</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span> </div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span> <a class="code" href="classVamp_1_1Plugin.html#a448fb57dc245d47923ec9eeaf9856c5f">ZeroCrossing::FeatureSet</a></div><div class="line"><a name="l00143"></a><span class="lineno"><a class="line" href="classZeroCrossing.html#abf4aaa6fd8cc03de63f4e1e8942633da"> 143</a></span> <a class="code" href="classZeroCrossing.html#abf4aaa6fd8cc03de63f4e1e8942633da">ZeroCrossing::process</a>(<span class="keyword">const</span> <span class="keywordtype">float</span> *<span class="keyword">const</span> *inputBuffers,</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <a class="code" href="structVamp_1_1RealTime.html">Vamp::RealTime</a> timestamp)</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> {</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <span class="keywordflow">if</span> (<a class="code" href="classZeroCrossing.html#a584f100b87c78f9af9da040d79567d52">m_stepSize</a> == 0) {</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  cerr << <span class="stringliteral">"ERROR: ZeroCrossing::process: "</span></div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  << <span class="stringliteral">"ZeroCrossing has not been initialised"</span></div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  << endl;</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <span class="keywordflow">return</span> <a class="code" href="classVamp_1_1Plugin.html#a448fb57dc245d47923ec9eeaf9856c5f">FeatureSet</a>();</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  }</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span> </div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keywordtype">float</span> prev = <a class="code" href="classZeroCrossing.html#a0f2d9f2cab0a8a30344e1f2c0ebb8ee8">m_previousSample</a>;</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  <span class="keywordtype">size_t</span> count = 0;</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span> </div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  <a class="code" href="classVamp_1_1Plugin.html#a448fb57dc245d47923ec9eeaf9856c5f">FeatureSet</a> returnFeatures;</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span> </div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < <a class="code" href="classZeroCrossing.html#a584f100b87c78f9af9da040d79567d52">m_stepSize</a>; ++i) {</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span> </div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  <span class="keywordtype">float</span> sample = inputBuffers[0][i];</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  <span class="keywordtype">bool</span> crossing = <span class="keyword">false</span>;</div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span> </div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="keywordflow">if</span> (sample <= 0.0) {</div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span>  <span class="keywordflow">if</span> (prev > 0.0) crossing = <span class="keyword">true</span>;</div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (sample > 0.0) {</div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keywordflow">if</span> (prev <= 0.0) crossing = <span class="keyword">true</span>;</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  }</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span> </div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  <span class="keywordflow">if</span> (crossing) {</div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  ++count; </div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  <a class="code" href="structVamp_1_1Plugin_1_1Feature.html">Feature</a> feature;</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span>  feature.<a class="code" href="structVamp_1_1Plugin_1_1Feature.html#a98907091d0b6a589720ae35ae588a82b">hasTimestamp</a> = <span class="keyword">true</span>;</div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  feature.<a class="code" href="structVamp_1_1Plugin_1_1Feature.html#acaa605f36839c07e76f4882f5e22d8d7">timestamp</a> = timestamp +</div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <a class="code" href="structVamp_1_1RealTime.html#a939b4b1d1ca190db69a418883f16ce8a">Vamp::RealTime::frame2RealTime</a>(i, (<span class="keywordtype">size_t</span>)<a class="code" href="classVamp_1_1Plugin.html#a59b9dd82a4f4eb946cd0474cc81abc23">m_inputSampleRate</a>);</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  returnFeatures[1].push_back(feature);</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  }</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span> </div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  prev = sample;</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  }</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span> </div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  <a class="code" href="classZeroCrossing.html#a0f2d9f2cab0a8a30344e1f2c0ebb8ee8">m_previousSample</a> = prev;</div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span> </div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <a class="code" href="structVamp_1_1Plugin_1_1Feature.html">Feature</a> feature;</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  feature.<a class="code" href="structVamp_1_1Plugin_1_1Feature.html#a98907091d0b6a589720ae35ae588a82b">hasTimestamp</a> = <span class="keyword">false</span>;</div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  feature.<a class="code" href="structVamp_1_1Plugin_1_1Feature.html#a60b9f3057386820dbcaec0eb1189ce71">values</a>.push_back(<span class="keywordtype">float</span>(count));</div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span> </div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  returnFeatures[0].push_back(feature);</div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordflow">return</span> returnFeatures;</div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span> }</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span> </div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span> <a class="code" href="classVamp_1_1Plugin.html#a448fb57dc245d47923ec9eeaf9856c5f">ZeroCrossing::FeatureSet</a></div><div class="line"><a name="l00192"></a><span class="lineno"><a class="line" href="classZeroCrossing.html#a70996d1b7166e303903daf92a9a37ad8"> 192</a></span> <a class="code" href="classZeroCrossing.html#a70996d1b7166e303903daf92a9a37ad8">ZeroCrossing::getRemainingFeatures</a>()</div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span> {</div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">return</span> <a class="code" href="classVamp_1_1Plugin.html#a448fb57dc245d47923ec9eeaf9856c5f">FeatureSet</a>();</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span> }</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span> </div><div class="ttc" id="classVamp_1_1Plugin_html_a30f531b8fb69fac41a24e3d2a6a08ed9"><div class="ttname"><a href="classVamp_1_1Plugin.html#a30f531b8fb69fac41a24e3d2a6a08ed9">Vamp::Plugin::OutputList</a></div><div class="ttdeci">std::vector< OutputDescriptor > OutputList</div><div class="ttdef"><b>Definition:</b> <a href="vamp-sdk_2Plugin_8h_source.html#l00335">vamp-sdk/Plugin.h:335</a></div></div> <div class="ttc" id="classZeroCrossing_html_abf4aaa6fd8cc03de63f4e1e8942633da"><div class="ttname"><a href="classZeroCrossing.html#abf4aaa6fd8cc03de63f4e1e8942633da">ZeroCrossing::process</a></div><div class="ttdeci">FeatureSet process(const float *const *inputBuffers, Vamp::RealTime timestamp)</div><div class="ttdoc">Process a single block of input data. </div><div class="ttdef"><b>Definition:</b> <a href="ZeroCrossing_8cpp_source.html#l00143">ZeroCrossing.cpp:143</a></div></div> <div class="ttc" id="structVamp_1_1Plugin_1_1OutputDescriptor_html"><div class="ttname"><a href="structVamp_1_1Plugin_1_1OutputDescriptor.html">Vamp::Plugin::OutputDescriptor</a></div><div class="ttdef"><b>Definition:</b> <a href="vamp-sdk_2Plugin_8h_source.html#l00206">vamp-sdk/Plugin.h:206</a></div></div> <div class="ttc" id="structVamp_1_1Plugin_1_1OutputDescriptor_html_add0cbbdfa9c91764037c39365b1d42af"><div class="ttname"><a href="structVamp_1_1Plugin_1_1OutputDescriptor.html#add0cbbdfa9c91764037c39365b1d42af">Vamp::Plugin::OutputDescriptor::sampleRate</a></div><div class="ttdeci">float sampleRate</div><div class="ttdoc">Sample rate of the output results, as samples per second. </div><div class="ttdef"><b>Definition:</b> <a href="vamp-sdk_2Plugin_8h_source.html#l00314">vamp-sdk/Plugin.h:314</a></div></div> <div class="ttc" id="classZeroCrossing_html_ab83cfab3f9674920e295c2f3571bb24e"><div class="ttname"><a href="classZeroCrossing.html#ab83cfab3f9674920e295c2f3571bb24e">ZeroCrossing::getOutputDescriptors</a></div><div class="ttdeci">OutputList getOutputDescriptors() const</div><div class="ttdoc">Get the outputs of this plugin. </div><div class="ttdef"><b>Definition:</b> <a href="ZeroCrossing_8cpp_source.html#l00112">ZeroCrossing.cpp:112</a></div></div> <div class="ttc" id="structVamp_1_1Plugin_1_1OutputDescriptor_html_af0e577e1a256ff6eed6ea42133fec77d"><div class="ttname"><a href="structVamp_1_1Plugin_1_1OutputDescriptor.html#af0e577e1a256ff6eed6ea42133fec77d">Vamp::Plugin::OutputDescriptor::hasFixedBinCount</a></div><div class="ttdeci">bool hasFixedBinCount</div><div class="ttdoc">True if the output has the same number of values per sample for every output sample. </div><div class="ttdef"><b>Definition:</b> <a href="vamp-sdk_2Plugin_8h_source.html#l00239">vamp-sdk/Plugin.h:239</a></div></div> <div class="ttc" id="structVamp_1_1Plugin_1_1Feature_html_a60b9f3057386820dbcaec0eb1189ce71"><div class="ttname"><a href="structVamp_1_1Plugin_1_1Feature.html#a60b9f3057386820dbcaec0eb1189ce71">Vamp::Plugin::Feature::values</a></div><div class="ttdeci">std::vector< float > values</div><div class="ttdoc">Results for a single sample of this feature. </div><div class="ttdef"><b>Definition:</b> <a href="vamp-sdk_2Plugin_8h_source.html#l00382">vamp-sdk/Plugin.h:382</a></div></div> <div class="ttc" id="classZeroCrossing_html_af21bbcc87a6eb7875dfab7d86222dccc"><div class="ttname"><a href="classZeroCrossing.html#af21bbcc87a6eb7875dfab7d86222dccc">ZeroCrossing::initialise</a></div><div class="ttdeci">bool initialise(size_t channels, size_t stepSize, size_t blockSize)</div><div class="ttdoc">Initialise a plugin to prepare it for use with the given number of input channels, step size (window increment, in sample frames) and block size (window size, in sample frames). </div><div class="ttdef"><b>Definition:</b> <a href="ZeroCrossing_8cpp_source.html#l00095">ZeroCrossing.cpp:95</a></div></div> <div class="ttc" id="classVamp_1_1Plugin_html_a448fb57dc245d47923ec9eeaf9856c5f"><div class="ttname"><a href="classVamp_1_1Plugin.html#a448fb57dc245d47923ec9eeaf9856c5f">Vamp::Plugin::FeatureSet</a></div><div class="ttdeci">std::map< int, FeatureList > FeatureSet</div><div class="ttdef"><b>Definition:</b> <a href="vamp-sdk_2Plugin_8h_source.html#l00395">vamp-sdk/Plugin.h:395</a></div></div> <div class="ttc" id="classZeroCrossing_html_a584f100b87c78f9af9da040d79567d52"><div class="ttname"><a href="classZeroCrossing.html#a584f100b87c78f9af9da040d79567d52">ZeroCrossing::m_stepSize</a></div><div class="ttdeci">size_t m_stepSize</div><div class="ttdef"><b>Definition:</b> <a href="ZeroCrossing_8h_source.html#l00073">ZeroCrossing.h:73</a></div></div> <div class="ttc" id="structVamp_1_1Plugin_1_1OutputDescriptor_html_a3bed37153067b625b95acb40b60dbf0b"><div class="ttname"><a href="structVamp_1_1Plugin_1_1OutputDescriptor.html#a3bed37153067b625b95acb40b60dbf0b">Vamp::Plugin::OutputDescriptor::quantizeStep</a></div><div class="ttdeci">float quantizeStep</div><div class="ttdoc">Quantization resolution of the output values (e.g. </div><div class="ttdef"><b>Definition:</b> <a href="vamp-sdk_2Plugin_8h_source.html#l00285">vamp-sdk/Plugin.h:285</a></div></div> <div class="ttc" id="classZeroCrossing_html_a70996d1b7166e303903daf92a9a37ad8"><div class="ttname"><a href="classZeroCrossing.html#a70996d1b7166e303903daf92a9a37ad8">ZeroCrossing::getRemainingFeatures</a></div><div class="ttdeci">FeatureSet getRemainingFeatures()</div><div class="ttdoc">After all blocks have been processed, calculate and return any remaining features derived from the co...</div><div class="ttdef"><b>Definition:</b> <a href="ZeroCrossing_8cpp_source.html#l00192">ZeroCrossing.cpp:192</a></div></div> <div class="ttc" id="structVamp_1_1Plugin_1_1Feature_html_acaa605f36839c07e76f4882f5e22d8d7"><div class="ttname"><a href="structVamp_1_1Plugin_1_1Feature.html#acaa605f36839c07e76f4882f5e22d8d7">Vamp::Plugin::Feature::timestamp</a></div><div class="ttdeci">RealTime timestamp</div><div class="ttdoc">Timestamp of the output feature. </div><div class="ttdef"><b>Definition:</b> <a href="vamp-sdk_2Plugin_8h_source.html#l00360">vamp-sdk/Plugin.h:360</a></div></div> <div class="ttc" id="structVamp_1_1Plugin_1_1OutputDescriptor_html_af9b4fe8f78e7126ead820ba5dc55efd1"><div class="ttname"><a href="structVamp_1_1Plugin_1_1OutputDescriptor.html#af9b4fe8f78e7126ead820ba5dc55efd1">Vamp::Plugin::OutputDescriptor::description</a></div><div class="ttdeci">std::string description</div><div class="ttdoc">A human-readable short text describing the output. </div><div class="ttdef"><b>Definition:</b> <a href="vamp-sdk_2Plugin_8h_source.html#l00227">vamp-sdk/Plugin.h:227</a></div></div> <div class="ttc" id="classZeroCrossing_html_a9ae6c4a31ea027dceb1e97ead807e228"><div class="ttname"><a href="classZeroCrossing.html#a9ae6c4a31ea027dceb1e97ead807e228">ZeroCrossing::reset</a></div><div class="ttdeci">void reset()</div><div class="ttdoc">Reset the plugin after use, to prepare it for another clean run. </div><div class="ttdef"><b>Definition:</b> <a href="ZeroCrossing_8cpp_source.html#l00106">ZeroCrossing.cpp:106</a></div></div> <div class="ttc" id="structVamp_1_1Plugin_1_1OutputDescriptor_html_ae2c893ddb1860589517ab7eaa989a18b"><div class="ttname"><a href="structVamp_1_1Plugin_1_1OutputDescriptor.html#ae2c893ddb1860589517ab7eaa989a18b">Vamp::Plugin::OutputDescriptor::identifier</a></div><div class="ttdeci">std::string identifier</div><div class="ttdoc">The name of the output, in computer-usable form. </div><div class="ttdef"><b>Definition:</b> <a href="vamp-sdk_2Plugin_8h_source.html#l00214">vamp-sdk/Plugin.h:214</a></div></div> <div class="ttc" id="structVamp_1_1Plugin_1_1Feature_html"><div class="ttname"><a href="structVamp_1_1Plugin_1_1Feature.html">Vamp::Plugin::Feature</a></div><div class="ttdef"><b>Definition:</b> <a href="vamp-sdk_2Plugin_8h_source.html#l00344">vamp-sdk/Plugin.h:344</a></div></div> <div class="ttc" id="classVamp_1_1Plugin_html_a59b9dd82a4f4eb946cd0474cc81abc23"><div class="ttname"><a href="classVamp_1_1Plugin.html#a59b9dd82a4f4eb946cd0474cc81abc23">Vamp::Plugin::m_inputSampleRate</a></div><div class="ttdeci">float m_inputSampleRate</div><div class="ttdef"><b>Definition:</b> <a href="vamp-sdk_2Plugin_8h_source.html#l00444">vamp-sdk/Plugin.h:444</a></div></div> <div class="ttc" id="classZeroCrossing_html_af5049a01a3f003f17a45c61b599c6543"><div class="ttname"><a href="classZeroCrossing.html#af5049a01a3f003f17a45c61b599c6543">ZeroCrossing::getIdentifier</a></div><div class="ttdeci">std::string getIdentifier() const</div><div class="ttdoc">Get the computer-usable name of the plugin. </div><div class="ttdef"><b>Definition:</b> <a href="ZeroCrossing_8cpp_source.html#l00059">ZeroCrossing.cpp:59</a></div></div> <div class="ttc" id="classZeroCrossing_html_af1de0da862e6e2443581e4e16044675b"><div class="ttname"><a href="classZeroCrossing.html#af1de0da862e6e2443581e4e16044675b">ZeroCrossing::~ZeroCrossing</a></div><div class="ttdeci">virtual ~ZeroCrossing()</div><div class="ttdef"><b>Definition:</b> <a href="ZeroCrossing_8cpp_source.html#l00054">ZeroCrossing.cpp:54</a></div></div> <div class="ttc" id="classZeroCrossing_html_a9855153a54bdc9ba75cc1a705a149473"><div class="ttname"><a href="classZeroCrossing.html#a9855153a54bdc9ba75cc1a705a149473">ZeroCrossing::ZeroCrossing</a></div><div class="ttdeci">ZeroCrossing(float inputSampleRate)</div><div class="ttdef"><b>Definition:</b> <a href="ZeroCrossing_8cpp_source.html#l00047">ZeroCrossing.cpp:47</a></div></div> <div class="ttc" id="structVamp_1_1Plugin_1_1OutputDescriptor_html_aa057a8833fa037f06ac9f7b85b85d5e4"><div class="ttname"><a href="structVamp_1_1Plugin_1_1OutputDescriptor.html#aa057a8833fa037f06ac9f7b85b85d5e4">Vamp::Plugin::OutputDescriptor::unit</a></div><div class="ttdeci">std::string unit</div><div class="ttdoc">The unit of the output, in human-readable form. </div><div class="ttdef"><b>Definition:</b> <a href="vamp-sdk_2Plugin_8h_source.html#l00232">vamp-sdk/Plugin.h:232</a></div></div> <div class="ttc" id="classVamp_1_1Plugin_html_ab74f7634c6ac6e3da115667808a79c30"><div class="ttname"><a href="classVamp_1_1Plugin.html#ab74f7634c6ac6e3da115667808a79c30">Vamp::Plugin::getMinChannelCount</a></div><div class="ttdeci">virtual size_t getMinChannelCount() const</div><div class="ttdoc">Get the minimum supported number of input channels. </div><div class="ttdef"><b>Definition:</b> <a href="vamp-sdk_2Plugin_8h_source.html#l00199">vamp-sdk/Plugin.h:199</a></div></div> <div class="ttc" id="structVamp_1_1Plugin_1_1OutputDescriptor_html_ab824b2b34ee50f897a30901c620e8d87"><div class="ttname"><a href="structVamp_1_1Plugin_1_1OutputDescriptor.html#ab824b2b34ee50f897a30901c620e8d87">Vamp::Plugin::OutputDescriptor::name</a></div><div class="ttdeci">std::string name</div><div class="ttdoc">The human-readable name of the output. </div><div class="ttdef"><b>Definition:</b> <a href="vamp-sdk_2Plugin_8h_source.html#l00220">vamp-sdk/Plugin.h:220</a></div></div> <div class="ttc" id="ZeroCrossing_8h_html"><div class="ttname"><a href="ZeroCrossing_8h.html">ZeroCrossing.h</a></div></div> <div class="ttc" id="classVamp_1_1Plugin_html_a0bff9464bc8c117470136c396b2405dd"><div class="ttname"><a href="classVamp_1_1Plugin.html#a0bff9464bc8c117470136c396b2405dd">Vamp::Plugin::getMaxChannelCount</a></div><div class="ttdeci">virtual size_t getMaxChannelCount() const</div><div class="ttdoc">Get the maximum supported number of input channels. </div><div class="ttdef"><b>Definition:</b> <a href="vamp-sdk_2Plugin_8h_source.html#l00204">vamp-sdk/Plugin.h:204</a></div></div> <div class="ttc" id="structVamp_1_1RealTime_html"><div class="ttname"><a href="structVamp_1_1RealTime.html">Vamp::RealTime</a></div><div class="ttdoc">RealTime represents time values to nanosecond precision with accurate arithmetic and frame-rate conve...</div><div class="ttdef"><b>Definition:</b> <a href="vamp-sdk_2RealTime_8h_source.html#l00066">vamp-sdk/RealTime.h:66</a></div></div> <div class="ttc" id="structVamp_1_1Plugin_1_1Feature_html_a98907091d0b6a589720ae35ae588a82b"><div class="ttname"><a href="structVamp_1_1Plugin_1_1Feature.html#a98907091d0b6a589720ae35ae588a82b">Vamp::Plugin::Feature::hasTimestamp</a></div><div class="ttdeci">bool hasTimestamp</div><div class="ttdoc">True if an output feature has its own timestamp. </div><div class="ttdef"><b>Definition:</b> <a href="vamp-sdk_2Plugin_8h_source.html#l00352">vamp-sdk/Plugin.h:352</a></div></div> <div class="ttc" id="classZeroCrossing_html_a4199350192d84a4ec5f379805cd3e7cf"><div class="ttname"><a href="classZeroCrossing.html#a4199350192d84a4ec5f379805cd3e7cf">ZeroCrossing::getPluginVersion</a></div><div class="ttdeci">int getPluginVersion() const</div><div class="ttdoc">Get the version number of the plugin. </div><div class="ttdef"><b>Definition:</b> <a href="ZeroCrossing_8cpp_source.html#l00083">ZeroCrossing.cpp:83</a></div></div> <div class="ttc" id="classZeroCrossing_html_a9ddf295d977b6c64d8acd34b7e0ce1b0"><div class="ttname"><a href="classZeroCrossing.html#a9ddf295d977b6c64d8acd34b7e0ce1b0">ZeroCrossing::getMaker</a></div><div class="ttdeci">std::string getMaker() const</div><div class="ttdoc">Get the name of the author or vendor of the plugin in human-readable form. </div><div class="ttdef"><b>Definition:</b> <a href="ZeroCrossing_8cpp_source.html#l00077">ZeroCrossing.cpp:77</a></div></div> <div class="ttc" id="structVamp_1_1RealTime_html_a939b4b1d1ca190db69a418883f16ce8a"><div class="ttname"><a href="structVamp_1_1RealTime.html#a939b4b1d1ca190db69a418883f16ce8a">Vamp::RealTime::frame2RealTime</a></div><div class="ttdeci">static RealTime frame2RealTime(long frame, unsigned int sampleRate)</div><div class="ttdoc">Convert a sample frame at the given sample rate into a RealTime. </div></div> <div class="ttc" id="classZeroCrossing_html_af955fb85b26a5497690aecbd288975f2"><div class="ttname"><a href="classZeroCrossing.html#af955fb85b26a5497690aecbd288975f2">ZeroCrossing::getCopyright</a></div><div class="ttdeci">std::string getCopyright() const</div><div class="ttdoc">Get the copyright statement or licensing summary for the plugin. </div><div class="ttdef"><b>Definition:</b> <a href="ZeroCrossing_8cpp_source.html#l00089">ZeroCrossing.cpp:89</a></div></div> <div class="ttc" id="classZeroCrossing_html_a191365f793e6488d02d57029eb14deb2"><div class="ttname"><a href="classZeroCrossing.html#a191365f793e6488d02d57029eb14deb2">ZeroCrossing::getName</a></div><div class="ttdeci">std::string getName() const</div><div class="ttdoc">Get a human-readable name or title of the plugin. </div><div class="ttdef"><b>Definition:</b> <a href="ZeroCrossing_8cpp_source.html#l00065">ZeroCrossing.cpp:65</a></div></div> <div class="ttc" id="classZeroCrossing_html_a7ba1cfd102a427f8333ddfa2fe234d58"><div class="ttname"><a href="classZeroCrossing.html#a7ba1cfd102a427f8333ddfa2fe234d58">ZeroCrossing::getDescription</a></div><div class="ttdeci">std::string getDescription() const</div><div class="ttdoc">Get a human-readable description for the plugin, typically a line of text that may optionally be disp...</div><div class="ttdef"><b>Definition:</b> <a href="ZeroCrossing_8cpp_source.html#l00071">ZeroCrossing.cpp:71</a></div></div> <div class="ttc" id="structVamp_1_1Plugin_1_1OutputDescriptor_html_abffa9ed50cd756df70fd51f0355f448ca0459d5d0d2198d21e8bc90abe4fdccca"><div class="ttname"><a href="structVamp_1_1Plugin_1_1OutputDescriptor.html#abffa9ed50cd756df70fd51f0355f448ca0459d5d0d2198d21e8bc90abe4fdccca">Vamp::Plugin::OutputDescriptor::OneSamplePerStep</a></div><div class="ttdoc">Results from each process() align with that call&#39;s block start. </div><div class="ttdef"><b>Definition:</b> <a href="vamp-sdk_2Plugin_8h_source.html#l00290">vamp-sdk/Plugin.h:290</a></div></div> <div class="ttc" id="structVamp_1_1Plugin_1_1OutputDescriptor_html_afdd006959a995e40ef7d565a3a4df6dc"><div class="ttname"><a href="structVamp_1_1Plugin_1_1OutputDescriptor.html#afdd006959a995e40ef7d565a3a4df6dc">Vamp::Plugin::OutputDescriptor::binCount</a></div><div class="ttdeci">size_t binCount</div><div class="ttdoc">The number of values per result of the output. </div><div class="ttdef"><b>Definition:</b> <a href="vamp-sdk_2Plugin_8h_source.html#l00247">vamp-sdk/Plugin.h:247</a></div></div> <div class="ttc" id="classZeroCrossing_html_a0f2d9f2cab0a8a30344e1f2c0ebb8ee8"><div class="ttname"><a href="classZeroCrossing.html#a0f2d9f2cab0a8a30344e1f2c0ebb8ee8">ZeroCrossing::m_previousSample</a></div><div class="ttdeci">float m_previousSample</div><div class="ttdef"><b>Definition:</b> <a href="ZeroCrossing_8h_source.html#l00074">ZeroCrossing.h:74</a></div></div> <div class="ttc" id="structVamp_1_1Plugin_1_1OutputDescriptor_html_a1b4858928d23bfd7d5bc557c82a83fb4"><div class="ttname"><a href="structVamp_1_1Plugin_1_1OutputDescriptor.html#a1b4858928d23bfd7d5bc557c82a83fb4">Vamp::Plugin::OutputDescriptor::isQuantized</a></div><div class="ttdeci">bool isQuantized</div><div class="ttdoc">True if the output values are quantized to a particular resolution. </div><div class="ttdef"><b>Definition:</b> <a href="vamp-sdk_2Plugin_8h_source.html#l00278">vamp-sdk/Plugin.h:278</a></div></div> <div class="ttc" id="structVamp_1_1Plugin_1_1OutputDescriptor_html_a0d1194980d44e31b25ef3b4b070d6b5d"><div class="ttname"><a href="structVamp_1_1Plugin_1_1OutputDescriptor.html#a0d1194980d44e31b25ef3b4b070d6b5d">Vamp::Plugin::OutputDescriptor::sampleType</a></div><div class="ttdeci">SampleType sampleType</div><div class="ttdoc">Positioning in time of the output results. </div><div class="ttdef"><b>Definition:</b> <a href="vamp-sdk_2Plugin_8h_source.html#l00302">vamp-sdk/Plugin.h:302</a></div></div> <div class="ttc" id="structVamp_1_1Plugin_1_1OutputDescriptor_html_abffa9ed50cd756df70fd51f0355f448cadea995a737867f7b22b52f1c43c5432e"><div class="ttname"><a href="structVamp_1_1Plugin_1_1OutputDescriptor.html#abffa9ed50cd756df70fd51f0355f448cadea995a737867f7b22b52f1c43c5432e">Vamp::Plugin::OutputDescriptor::VariableSampleRate</a></div><div class="ttdoc">Results are unevenly spaced and have individual timestamps. </div><div class="ttdef"><b>Definition:</b> <a href="vamp-sdk_2Plugin_8h_source.html#l00296">vamp-sdk/Plugin.h:296</a></div></div> <div class="ttc" id="structVamp_1_1Plugin_1_1OutputDescriptor_html_ae9ccb65f99f477096b65dd031f4c5e31"><div class="ttname"><a href="structVamp_1_1Plugin_1_1OutputDescriptor.html#ae9ccb65f99f477096b65dd031f4c5e31">Vamp::Plugin::OutputDescriptor::hasKnownExtents</a></div><div class="ttdeci">bool hasKnownExtents</div><div class="ttdoc">True if the results in each output bin fall within a fixed numeric range (minimum and maximum values)...</div><div class="ttdef"><b>Definition:</b> <a href="vamp-sdk_2Plugin_8h_source.html#l00260">vamp-sdk/Plugin.h:260</a></div></div> </div><!-- fragment --></div><!-- contents --> </div><!-- doc-content --> <!-- start footer part --> <div id="nav-path" class="navpath"><!-- id is needed for treeview function! --> <ul> <li class="navelem"><a class="el" href="dir_d28a4824dc47e487b107a5db32ef43c4.html">examples</a></li><li class="navelem"><a class="el" href="ZeroCrossing_8cpp.html">ZeroCrossing.cpp</a></li> <li class="footer">Generated by <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.13 </li> </ul> </div> </body> </html>