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<p>Fast FFT filter with gr_complex input, gr_complex output and gr_complex taps.
<a href="classgr_1_1filter_1_1kernel_1_1fft__filter__ccc.html#details">More...</a></p>
<p><code>#include <<a class="el" href="fft__filter_8h_source.html">fft_filter.h</a>></code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a2f688f70eb7172439389e3f1d1fefae3"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr_1_1filter_1_1kernel_1_1fft__filter__ccc.html#a2f688f70eb7172439389e3f1d1fefae3">fft_filter_ccc</a> (int decimation, const std::vector< <a class="el" href="gr__complex_8h.html#aec4bfe41433369afae9327f1b0bc9109">gr_complex</a> > &<a class="el" href="gr-filter_2include_2filter_2interpolator__taps_8h.html#a30bf032e13c2a9fc4a98e14e390cd65a">taps</a>, int <a class="el" href="classgr_1_1filter_1_1kernel_1_1fft__filter__ccc.html#a96618262799874739906d561cba8389c">nthreads</a>=1)</td></tr>
<tr class="memdesc:a2f688f70eb7172439389e3f1d1fefae3"><td class="mdescLeft"> </td><td class="mdescRight">Construct an FFT filter for complex vectors with the given taps and decimation rate. <a href="#a2f688f70eb7172439389e3f1d1fefae3"></a><br/></td></tr>
<tr class="separator:a2f688f70eb7172439389e3f1d1fefae3"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a11fb4dca51e0d234c370a25bada9dbdd"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr_1_1filter_1_1kernel_1_1fft__filter__ccc.html#a11fb4dca51e0d234c370a25bada9dbdd">~fft_filter_ccc</a> ()</td></tr>
<tr class="separator:a11fb4dca51e0d234c370a25bada9dbdd"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aae56e8fc2e64ccafebf4d9de7f7ccf1e"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr_1_1filter_1_1kernel_1_1fft__filter__ccc.html#aae56e8fc2e64ccafebf4d9de7f7ccf1e">set_taps</a> (const std::vector< <a class="el" href="gr__complex_8h.html#aec4bfe41433369afae9327f1b0bc9109">gr_complex</a> > &<a class="el" href="gr-filter_2include_2filter_2interpolator__taps_8h.html#a30bf032e13c2a9fc4a98e14e390cd65a">taps</a>)</td></tr>
<tr class="memdesc:aae56e8fc2e64ccafebf4d9de7f7ccf1e"><td class="mdescLeft"> </td><td class="mdescRight">Set new taps for the filter. <a href="#aae56e8fc2e64ccafebf4d9de7f7ccf1e"></a><br/></td></tr>
<tr class="separator:aae56e8fc2e64ccafebf4d9de7f7ccf1e"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a24990f4eb540bbdd7f0f15c19d3b70f7"><td class="memItemLeft" align="right" valign="top"><a class="el" href="volk_8tmpl_8h.html#a8dc2b7da310a28e667530ba0e8ca4cc4">void</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr_1_1filter_1_1kernel_1_1fft__filter__ccc.html#a24990f4eb540bbdd7f0f15c19d3b70f7">set_nthreads</a> (int n)</td></tr>
<tr class="memdesc:a24990f4eb540bbdd7f0f15c19d3b70f7"><td class="mdescLeft"> </td><td class="mdescRight">Set number of threads to use. <a href="#a24990f4eb540bbdd7f0f15c19d3b70f7"></a><br/></td></tr>
<tr class="separator:a24990f4eb540bbdd7f0f15c19d3b70f7"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a96618262799874739906d561cba8389c"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr_1_1filter_1_1kernel_1_1fft__filter__ccc.html#a96618262799874739906d561cba8389c">nthreads</a> () const </td></tr>
<tr class="memdesc:a96618262799874739906d561cba8389c"><td class="mdescLeft"> </td><td class="mdescRight">Get number of threads being used. <a href="#a96618262799874739906d561cba8389c"></a><br/></td></tr>
<tr class="separator:a96618262799874739906d561cba8389c"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:aa6260658e0eab6bd51fba467049872c7"><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr_1_1filter_1_1kernel_1_1fft__filter__ccc.html#aa6260658e0eab6bd51fba467049872c7">filter</a> (int nitems, const <a class="el" href="gr__complex_8h.html#aec4bfe41433369afae9327f1b0bc9109">gr_complex</a> *input, <a class="el" href="gr__complex_8h.html#aec4bfe41433369afae9327f1b0bc9109">gr_complex</a> *output)</td></tr>
<tr class="memdesc:aa6260658e0eab6bd51fba467049872c7"><td class="mdescLeft"> </td><td class="mdescRight">Perform the filter operation. <a href="#aa6260658e0eab6bd51fba467049872c7"></a><br/></td></tr>
<tr class="separator:aa6260658e0eab6bd51fba467049872c7"><td class="memSeparator" colspan="2"> </td></tr>
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<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Fast FFT filter with gr_complex input, gr_complex output and gr_complex taps. </p>
</div><h2 class="groupheader">Constructor & Destructor Documentation</h2>
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<td class="memname">gr::filter::kernel::fft_filter_ccc::fft_filter_ccc </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>decimation</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const std::vector< <a class="el" href="gr__complex_8h.html#aec4bfe41433369afae9327f1b0bc9109">gr_complex</a> > & </td>
<td class="paramname"><em>taps</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>nthreads</em> = <code>1</code> </td>
</tr>
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<td></td>
<td>)</td>
<td></td><td></td>
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<p>Construct an FFT filter for complex vectors with the given taps and decimation rate. </p>
<p>This is the basic implementation for performing FFT filter for fast convolution in other blocks for complex vectors (such as <a class="el" href="classgr_1_1filter_1_1kernel_1_1fft__filter__ccc.html" title="Fast FFT filter with gr_complex input, gr_complex output and gr_complex taps.">fft_filter_ccc</a>).</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">decimation</td><td>The decimation rate of the filter (int) </td></tr>
<tr><td class="paramname">taps</td><td>The filter taps (complex) </td></tr>
<tr><td class="paramname">nthreads</td><td>The number of threads for the FFT to use (int) </td></tr>
</table>
</dd>
</dl>
</div>
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<td class="memname">gr::filter::kernel::fft_filter_ccc::~fft_filter_ccc </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
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</div><div class="memdoc">
</div>
</div>
<h2 class="groupheader">Member Function Documentation</h2>
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<td class="memname">int gr::filter::kernel::fft_filter_ccc::filter </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>nitems</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="gr__complex_8h.html#aec4bfe41433369afae9327f1b0bc9109">gr_complex</a> * </td>
<td class="paramname"><em>input</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="gr__complex_8h.html#aec4bfe41433369afae9327f1b0bc9109">gr_complex</a> * </td>
<td class="paramname"><em>output</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
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<p>Perform the filter operation. </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">nitems</td><td>The number of items to produce </td></tr>
<tr><td class="paramname">input</td><td>The input vector to be filtered </td></tr>
<tr><td class="paramname">output</td><td>The result of the filter operation </td></tr>
</table>
</dd>
</dl>
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<td class="memname">int gr::filter::kernel::fft_filter_ccc::nthreads </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td> const</td>
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</div><div class="memdoc">
<p>Get number of threads being used. </p>
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</div>
<a class="anchor" id="a24990f4eb540bbdd7f0f15c19d3b70f7"></a>
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<td class="memname"><a class="el" href="volk_8tmpl_8h.html#a8dc2b7da310a28e667530ba0e8ca4cc4">void</a> gr::filter::kernel::fft_filter_ccc::set_nthreads </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>n</em></td><td>)</td>
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<p>Set number of threads to use. </p>
</div>
</div>
<a class="anchor" id="aae56e8fc2e64ccafebf4d9de7f7ccf1e"></a>
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<td class="memname">int gr::filter::kernel::fft_filter_ccc::set_taps </td>
<td>(</td>
<td class="paramtype">const std::vector< <a class="el" href="gr__complex_8h.html#aec4bfe41433369afae9327f1b0bc9109">gr_complex</a> > & </td>
<td class="paramname"><em>taps</em></td><td>)</td>
<td></td>
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<p>Set new taps for the filter. </p>
<p>Sets new taps and resets the class properties to handle different sizes </p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">taps</td><td>The filter taps (complex) </td></tr>
</table>
</dd>
</dl>
</div>
</div>
<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="fft__filter_8h_source.html">fft_filter.h</a></li>
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