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<div id="projectname">libsdr
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 <span id="projectnumber">0.1.0</span>
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<div id="projectbrief">A simple SDR library</div>
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<li class="navelem"><a class="el" href="dir_68267d1309a1af8e8297ef4c3efbcdba.html">src</a></li> </ul>
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<div class="title">firfilter.hh</div> </div>
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<div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="preprocessor">#ifndef __SDR_FIRFILTER_HH__</span></div>
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<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="preprocessor">#define __SDR_FIRFILTER_HH__</span></div>
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<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> </div>
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<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="preprocessor">#include "config.hh"</span></div>
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<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="preprocessor">#include "node.hh"</span></div>
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<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="preprocessor">#include "logger.hh"</span></div>
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<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> </div>
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<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="keyword">namespace </span><a class="code" href="namespacesdr.html">sdr</a> {</div>
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<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> </div>
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<div class="line"><a name="l00012"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_low_pass_coeffs.html"> 12</a></span> <span class="keyword">class </span><a class="code" href="classsdr_1_1_f_i_r_low_pass_coeffs.html">FIRLowPassCoeffs</a></div>
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<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> {</div>
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<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00016"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_low_pass_coeffs.html#ad10f9ddc869c9c33885dbf788a26deda"> 16</a></span>  <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classsdr_1_1_f_i_r_low_pass_coeffs.html#ad10f9ddc869c9c33885dbf788a26deda">coeffs</a>(std::vector<double> &alpha, <span class="keywordtype">double</span> Fl, <span class="keywordtype">double</span> Fu, <span class="keywordtype">double</span> Fs)</div>
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<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>  {</div>
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<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>  <span class="keywordtype">size_t</span> N = alpha.size();</div>
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<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>  <span class="keywordtype">double</span> w = 2*M_PI*Fu/Fs;</div>
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<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>  <span class="keywordtype">double</span> M = double(N)/2;</div>
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<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>  <span class="keywordtype">double</span> norm = 0;</div>
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<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i=0; i<N; i++) {</div>
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<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>  <span class="keywordflow">if</span> (N == 2*i) { alpha[i] = 4*w/M_PI; }</div>
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<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>  <span class="keywordflow">else</span> { alpha[i] = std::sin(w*(i-M))/(w*(i-M)); }</div>
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<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>  <span class="comment">// apply window function</span></div>
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<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>  alpha[i] *= (0.42 - 0.5*cos((2*M_PI*i)/N) + 0.08*cos((4*M_PI*i)/N));</div>
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<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  <span class="comment">// Calc norm</span></div>
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<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>  norm += std::abs(alpha[i]);</div>
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<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  }</div>
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<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <span class="comment">// Normalize filter coeffs:</span></div>
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<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i=0; i<N; i++) { alpha[i] /= norm; }</div>
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<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  }</div>
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<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> };</div>
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<div class="line"><a name="l00034"></a><span class="lineno"> 34</span> </div>
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<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div>
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<div class="line"><a name="l00038"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_high_pass_coeffs.html"> 38</a></span> <span class="keyword">class </span><a class="code" href="classsdr_1_1_f_i_r_high_pass_coeffs.html">FIRHighPassCoeffs</a></div>
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<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> {</div>
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<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00042"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_high_pass_coeffs.html#a64e44c1efb3e46aa54e66dbe5c593ba3"> 42</a></span>  <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classsdr_1_1_f_i_r_high_pass_coeffs.html#a64e44c1efb3e46aa54e66dbe5c593ba3">coeffs</a>(std::vector<double> &alpha, <span class="keywordtype">double</span> Fl, <span class="keywordtype">double</span> Fu, <span class="keywordtype">double</span> Fs)</div>
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<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  {</div>
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<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keywordtype">size_t</span> N = alpha.size();</div>
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<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordtype">double</span> w = 2*M_PI*Fl/Fs;</div>
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<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="keywordtype">double</span> M = double(N)/2;</div>
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<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordtype">double</span> norm = 0;</div>
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<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i=0; i<N; i++) {</div>
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<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordflow">if</span> (N == 2*i) { alpha[i] = -std::sin(w*(i-M))/(w*(i-N)); }</div>
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<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordflow">else</span> { alpha[i] = 1-4*w/M_PI; }</div>
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<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="comment">// apply window function</span></div>
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<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  alpha[i] *= (0.42 - 0.5*cos((2*M_PI*i)/N) + 0.08*cos((4*M_PI*i)/N));</div>
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<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  norm += std::abs(alpha[i]);</div>
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<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  }</div>
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<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="comment">// Normalize filter coeffs:</span></div>
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<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i=0; i<N; i++) { alpha[i] /= norm; }</div>
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<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  }</div>
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<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> };</div>
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<div class="line"><a name="l00059"></a><span class="lineno"> 59</span> </div>
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<div class="line"><a name="l00060"></a><span class="lineno"> 60</span> </div>
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<div class="line"><a name="l00063"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_band_pass_coeffs.html"> 63</a></span> <span class="keyword">class </span><a class="code" href="classsdr_1_1_f_i_r_band_pass_coeffs.html">FIRBandPassCoeffs</a></div>
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<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> {</div>
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<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00067"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_band_pass_coeffs.html#abd6f0bbcbb0c20eb828bd5f80934fc66"> 67</a></span>  <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classsdr_1_1_f_i_r_band_pass_coeffs.html#abd6f0bbcbb0c20eb828bd5f80934fc66">coeffs</a>(std::vector<double> &alpha, <span class="keywordtype">double</span> Fl, <span class="keywordtype">double</span> Fu, <span class="keywordtype">double</span> Fs)</div>
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<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  {</div>
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<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordtype">size_t</span> N = alpha.size();</div>
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<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keywordtype">double</span> wl = 2*M_PI*Fl/Fs;</div>
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<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keywordtype">double</span> wu = 2*M_PI*Fu/Fs;</div>
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<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keywordtype">double</span> M = double(N)/2;</div>
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<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keywordtype">double</span> norm = 0;</div>
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<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i=0; i<N; i++) {</div>
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<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keywordflow">if</span> (N == 2*i) { alpha[i] = 4*(wl-wu)/M_PI; }</div>
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<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keywordflow">else</span> { alpha[i] = std::sin(wl*(i-M)/(wl*(i-M))) - std::sin(wu*(i-M)/(wu*(i-M))); }</div>
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<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  <span class="comment">// apply window function</span></div>
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<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  alpha[i] *= (0.42 - 0.5*cos((2*M_PI*i)/N) + 0.08*cos((4*M_PI*i)/N));</div>
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<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  norm += std::abs(alpha[i]);</div>
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<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  }</div>
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<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <span class="comment">// Normalize filter coeffs:</span></div>
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<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i=0; i<N; i++) { alpha[i] /= norm; }</div>
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<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  }</div>
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<div class="line"><a name="l00084"></a><span class="lineno"> 84</span> };</div>
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<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div>
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<div class="line"><a name="l00086"></a><span class="lineno"> 86</span> </div>
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<div class="line"><a name="l00089"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_band_stop_coeffs.html"> 89</a></span> <span class="keyword">class </span><a class="code" href="classsdr_1_1_f_i_r_band_stop_coeffs.html">FIRBandStopCoeffs</a></div>
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<div class="line"><a name="l00090"></a><span class="lineno"> 90</span> {</div>
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<div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00093"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_band_stop_coeffs.html#ab16669fb8531dfbb1dea863efcb4ac78"> 93</a></span>  <span class="keyword">static</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classsdr_1_1_f_i_r_band_stop_coeffs.html#ab16669fb8531dfbb1dea863efcb4ac78">coeffs</a>(std::vector<double> &alpha, <span class="keywordtype">double</span> Fl, <span class="keywordtype">double</span> Fu, <span class="keywordtype">double</span> Fs)</div>
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<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  {</div>
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<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <span class="keywordtype">size_t</span> N = alpha.size();</div>
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<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordtype">double</span> wl = 2*M_PI*Fl/Fs;</div>
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<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keywordtype">double</span> wu = 2*M_PI*Fl/Fs;</div>
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<div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  <span class="keywordtype">double</span> M = double(N)/2;</div>
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<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  <span class="keywordtype">double</span> norm = 0;</div>
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<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i=0; i<N; i++) {</div>
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<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>  <span class="keywordflow">if</span> (N == 2*i) { alpha[i] = 1-4*(wl-wu)/M_PI; }</div>
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<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  <span class="keywordflow">else</span> { alpha[i] = std::sin(wu*(i-M)/(wu*(i-M))) - std::sin(wl*(i-M)/(wl*(i-M))); }</div>
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<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="comment">// apply window function</span></div>
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<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  alpha[i] *= (0.42 - 0.5*cos((2*M_PI*i)/N) + 0.08*cos((4*M_PI*i)/N));</div>
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<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  norm += std::abs(alpha[i]);</div>
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<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  }</div>
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<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="comment">// Normalize filter coeffs:</span></div>
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<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i=0; i<N; i++) { alpha[i] /= norm; }</div>
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<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  }</div>
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<div class="line"><a name="l00110"></a><span class="lineno"> 110</span> };</div>
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<div class="line"><a name="l00111"></a><span class="lineno"> 111</span> </div>
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<div class="line"><a name="l00112"></a><span class="lineno"> 112</span> </div>
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<div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="keyword">template</span> <<span class="keyword">class</span> Scalar, <span class="keyword">class</span> FilterCoeffs></div>
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<div class="line"><a name="l00117"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_filter.html"> 117</a></span> <span class="keyword">class </span><a class="code" href="classsdr_1_1_f_i_r_filter.html">FIRFilter</a>: <span class="keyword">public</span> <a class="code" href="classsdr_1_1_sink.html">Sink</a><Scalar>, <span class="keyword">public</span> <a class="code" href="classsdr_1_1_source.html">Source</a></div>
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<div class="line"><a name="l00118"></a><span class="lineno"> 118</span> {</div>
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<div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00121"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_filter.html#a94d565503488689e65a75199117146e1"> 121</a></span>  <a class="code" href="classsdr_1_1_f_i_r_filter.html#a94d565503488689e65a75199117146e1">FIRFilter</a>(<span class="keywordtype">size_t</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#a97fad5ad5e7d18085d4d6c6904154836">order</a>, <span class="keywordtype">double</span> Fl, <span class="keywordtype">double</span> Fu)</div>
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<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  : <a class="code" href="classsdr_1_1_sink.html">Sink</a><Scalar>(), <a class="code" href="classsdr_1_1_source.html">Source</a>(), <a class="code" href="classsdr_1_1_f_i_r_filter.html#a72d1e0297c601f479ed46a46519fb502">_enabled</a>(true), <a class="code" href="classsdr_1_1_f_i_r_filter.html#af3fa19a8ce102614bf261b4e58134b01">_order</a>(<a class="code" href="namespacestd.html">std</a>::max(size_t(1), order)), <a class="code" href="classsdr_1_1_f_i_r_filter.html#a3e661ccb9bcdabd926f5e529f6d4dc2d">_Fl</a>(Fl), <a class="code" href="classsdr_1_1_f_i_r_filter.html#a8246c325efe878771231ee1e10e03ed8">_Fu</a>(Fu),</div>
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<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <a class="code" href="classsdr_1_1_f_i_r_filter.html#ad7caee7b3f07e5e38956ffc014d5baa6">_Fs</a>(0), <a class="code" href="classsdr_1_1_f_i_r_filter.html#ab9642beb28d53e0da14e78c903a16c88">_alpha</a>(<a class="code" href="classsdr_1_1_f_i_r_filter.html#af3fa19a8ce102614bf261b4e58134b01">_order</a>, 0), <a class="code" href="classsdr_1_1_f_i_r_filter.html#a74c56d78d4e7fbb6fa20eaf9d284494b">_ring</a>(<a class="code" href="classsdr_1_1_f_i_r_filter.html#af3fa19a8ce102614bf261b4e58134b01">_order</a>), <a class="code" href="classsdr_1_1_f_i_r_filter.html#aaad38be5e520d03c50877f94dfe19725">_ring_offset</a>(0)</div>
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<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  {</div>
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<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  <span class="comment">// pass...</span></div>
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<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  }</div>
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<div class="line"><a name="l00127"></a><span class="lineno"> 127</span> </div>
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<div class="line"><a name="l00129"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_filter.html#abd1d8a40766465d012eba2ea7c1fa539"> 129</a></span>  <span class="keyword">virtual</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#abd1d8a40766465d012eba2ea7c1fa539">~FIRFilter</a>() {</div>
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<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <a class="code" href="classsdr_1_1_f_i_r_filter.html#a74c56d78d4e7fbb6fa20eaf9d284494b">_ring</a>.<a class="code" href="classsdr_1_1_raw_buffer.html#a8ffd3cbf476c9036bfada9ae8c7c5e05">unref</a>();</div>
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<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <a class="code" href="classsdr_1_1_f_i_r_filter.html#a6f8f3db14310d350b5bffb6499513b1b">_buffer</a>.<a class="code" href="classsdr_1_1_raw_buffer.html#a8ffd3cbf476c9036bfada9ae8c7c5e05">unref</a>();</div>
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<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  }</div>
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<div class="line"><a name="l00133"></a><span class="lineno"> 133</span> </div>
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<div class="line"><a name="l00135"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_filter.html#a86bb334d886cebe30844cdf4e12c68a9"> 135</a></span>  <span class="keyword">inline</span> <span class="keywordtype">bool</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#a86bb334d886cebe30844cdf4e12c68a9">enabled</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#a72d1e0297c601f479ed46a46519fb502">_enabled</a>; }</div>
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<div class="line"><a name="l00137"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_filter.html#ae8a63941ff482b039cf1cfdb79c0dc03"> 137</a></span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#ae8a63941ff482b039cf1cfdb79c0dc03">enable</a>(<span class="keywordtype">bool</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#ae8a63941ff482b039cf1cfdb79c0dc03">enable</a>) { <a class="code" href="classsdr_1_1_f_i_r_filter.html#a72d1e0297c601f479ed46a46519fb502">_enabled</a> = <a class="code" href="classsdr_1_1_f_i_r_filter.html#ae8a63941ff482b039cf1cfdb79c0dc03">enable</a>; }</div>
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<div class="line"><a name="l00138"></a><span class="lineno"> 138</span> </div>
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<div class="line"><a name="l00140"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_filter.html#a97fad5ad5e7d18085d4d6c6904154836"> 140</a></span>  <span class="keyword">inline</span> <span class="keywordtype">size_t</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#a97fad5ad5e7d18085d4d6c6904154836">order</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#af3fa19a8ce102614bf261b4e58134b01">_order</a>; }</div>
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<div class="line"><a name="l00142"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_filter.html#a3da50552081d57104580336ed0f1d80d"> 142</a></span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#a3da50552081d57104580336ed0f1d80d">setOrder</a>(<span class="keywordtype">size_t</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#a97fad5ad5e7d18085d4d6c6904154836">order</a>) {</div>
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<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="comment">// Ensure order is larger 0:</span></div>
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<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  order = std::max(<span class="keywordtype">size_t</span>(1), order);</div>
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<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordflow">if</span> (order == <a class="code" href="classsdr_1_1_f_i_r_filter.html#af3fa19a8ce102614bf261b4e58134b01">_order</a>) { <span class="keywordflow">return</span>; }</div>
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<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  <a class="code" href="classsdr_1_1_f_i_r_filter.html#af3fa19a8ce102614bf261b4e58134b01">_order</a> = <a class="code" href="classsdr_1_1_f_i_r_filter.html#a97fad5ad5e7d18085d4d6c6904154836">order</a>;</div>
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<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="comment">// Resize past and coeffs</span></div>
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<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <a class="code" href="classsdr_1_1_f_i_r_filter.html#ab9642beb28d53e0da14e78c903a16c88">_alpha</a>.resize(<a class="code" href="classsdr_1_1_f_i_r_filter.html#af3fa19a8ce102614bf261b4e58134b01">_order</a>);</div>
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<div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <a class="code" href="classsdr_1_1_f_i_r_filter.html#a74c56d78d4e7fbb6fa20eaf9d284494b">_ring</a> = <a class="code" href="classsdr_1_1_buffer.html">Buffer<Scalar></a>(<a class="code" href="classsdr_1_1_f_i_r_filter.html#af3fa19a8ce102614bf261b4e58134b01">_order</a>);</div>
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<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  <a class="code" href="classsdr_1_1_f_i_r_filter.html#aaad38be5e520d03c50877f94dfe19725">_ring_offset</a> = 0;</div>
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<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  <span class="comment">// Update coeffs:</span></div>
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<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  FilterCoeffs::coeffs(<a class="code" href="classsdr_1_1_f_i_r_filter.html#ab9642beb28d53e0da14e78c903a16c88">_alpha</a>, <a class="code" href="classsdr_1_1_f_i_r_filter.html#a3e661ccb9bcdabd926f5e529f6d4dc2d">_Fl</a>, <a class="code" href="classsdr_1_1_f_i_r_filter.html#a8246c325efe878771231ee1e10e03ed8">_Fu</a>, <a class="code" href="classsdr_1_1_f_i_r_filter.html#ad7caee7b3f07e5e38956ffc014d5baa6">_Fs</a>);</div>
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<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  }</div>
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<div class="line"><a name="l00154"></a><span class="lineno"> 154</span> </div>
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<div class="line"><a name="l00156"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_filter.html#a9681c7d0e584a03c914897cb2fd1604f"> 156</a></span>  <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#a9681c7d0e584a03c914897cb2fd1604f">lowerFreq</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#a3e661ccb9bcdabd926f5e529f6d4dc2d">_Fl</a>; }</div>
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<div class="line"><a name="l00158"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_filter.html#a59adcf3e38e0af2a06fde7f1a68c76ca"> 158</a></span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#a59adcf3e38e0af2a06fde7f1a68c76ca">setLowerFreq</a>(<span class="keywordtype">double</span> Fl) {</div>
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<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <a class="code" href="classsdr_1_1_f_i_r_filter.html#a3e661ccb9bcdabd926f5e529f6d4dc2d">_Fl</a> = Fl;</div>
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<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  FilterCoeffs::coeffs(<a class="code" href="classsdr_1_1_f_i_r_filter.html#ab9642beb28d53e0da14e78c903a16c88">_alpha</a>, <a class="code" href="classsdr_1_1_f_i_r_filter.html#a3e661ccb9bcdabd926f5e529f6d4dc2d">_Fl</a>, <a class="code" href="classsdr_1_1_f_i_r_filter.html#a8246c325efe878771231ee1e10e03ed8">_Fu</a>, <a class="code" href="classsdr_1_1_f_i_r_filter.html#ad7caee7b3f07e5e38956ffc014d5baa6">_Fs</a>);</div>
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<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>  }</div>
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<div class="line"><a name="l00162"></a><span class="lineno"> 162</span> </div>
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<div class="line"><a name="l00164"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_filter.html#a9aead6f43054bcfea0db9eee695b53e6"> 164</a></span>  <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#a9aead6f43054bcfea0db9eee695b53e6">uppertFreq</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#a3e661ccb9bcdabd926f5e529f6d4dc2d">_Fl</a>; }</div>
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<div class="line"><a name="l00166"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_filter.html#a6c9f663cd552debe0ff032843d65f07d"> 166</a></span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#a6c9f663cd552debe0ff032843d65f07d">setUpperFreq</a>(<span class="keywordtype">double</span> Fu) {</div>
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<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  <a class="code" href="classsdr_1_1_f_i_r_filter.html#a8246c325efe878771231ee1e10e03ed8">_Fu</a> = Fu;</div>
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<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  FilterCoeffs::coeffs(<a class="code" href="classsdr_1_1_f_i_r_filter.html#ab9642beb28d53e0da14e78c903a16c88">_alpha</a>, <a class="code" href="classsdr_1_1_f_i_r_filter.html#a3e661ccb9bcdabd926f5e529f6d4dc2d">_Fl</a>, <a class="code" href="classsdr_1_1_f_i_r_filter.html#a8246c325efe878771231ee1e10e03ed8">_Fu</a>, <a class="code" href="classsdr_1_1_f_i_r_filter.html#ad7caee7b3f07e5e38956ffc014d5baa6">_Fs</a>);</div>
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<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  }</div>
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<div class="line"><a name="l00170"></a><span class="lineno"> 170</span> </div>
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<div class="line"><a name="l00172"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_filter.html#add82f22f403ae4aaa004788a78bf6fb3"> 172</a></span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#add82f22f403ae4aaa004788a78bf6fb3">config</a>(<span class="keyword">const</span> <a class="code" href="classsdr_1_1_config.html">Config</a> &src_cfg) {</div>
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<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="comment">// Requires type, sample-rate and buffer-size</span></div>
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<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keywordflow">if</span> (!src_cfg.<a class="code" href="classsdr_1_1_config.html#a7cdfc69aa8e3ab975db7251747343a20">hasType</a>() || !src_cfg.<a class="code" href="classsdr_1_1_config.html#a5df3f75dcd6e678bd5f029a7400b404e">hasSampleRate</a>() || !src_cfg.<a class="code" href="classsdr_1_1_config.html#a485e488e1411e52c722b22d1807be406">hasBufferSize</a>()) { <span class="keywordflow">return</span>; }</div>
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<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  <span class="comment">// check type</span></div>
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<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordflow">if</span> (Config::typeId<Scalar>() != src_cfg.<a class="code" href="classsdr_1_1_config.html#afebc90c2a5f54a8a3ab5b896cfe37724">type</a>()) {</div>
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<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  <a class="code" href="classsdr_1_1_config_error.html">ConfigError</a> err;</div>
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<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  err << <span class="stringliteral">"Can not configure FIRLowPass: Invalid type "</span> << src_cfg.<a class="code" href="classsdr_1_1_config.html#afebc90c2a5f54a8a3ab5b896cfe37724">type</a>()</div>
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<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  << <span class="stringliteral">", expected "</span> << Config::typeId<Scalar>();</div>
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<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordflow">throw</span> err;</div>
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<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  }</div>
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<div class="line"><a name="l00182"></a><span class="lineno"> 182</span> </div>
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<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  <span class="comment">// Calc coeff</span></div>
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<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <a class="code" href="classsdr_1_1_f_i_r_filter.html#ad7caee7b3f07e5e38956ffc014d5baa6">_Fs</a> = src_cfg.<a class="code" href="classsdr_1_1_config.html#a42cfb658302fd7de7729ce2c740e9275">sampleRate</a>();</div>
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<div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  FilterCoeffs::coeffs(<a class="code" href="classsdr_1_1_f_i_r_filter.html#ab9642beb28d53e0da14e78c903a16c88">_alpha</a>, <a class="code" href="classsdr_1_1_f_i_r_filter.html#a3e661ccb9bcdabd926f5e529f6d4dc2d">_Fl</a>, <a class="code" href="classsdr_1_1_f_i_r_filter.html#a8246c325efe878771231ee1e10e03ed8">_Fu</a>, <a class="code" href="classsdr_1_1_f_i_r_filter.html#ad7caee7b3f07e5e38956ffc014d5baa6">_Fs</a>);</div>
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<div class="line"><a name="l00186"></a><span class="lineno"> 186</span> </div>
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<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>  <span class="comment">// unref buffer if non-empty</span></div>
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<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keywordflow">if</span> (!<a class="code" href="classsdr_1_1_f_i_r_filter.html#a6f8f3db14310d350b5bffb6499513b1b">_buffer</a>.<a class="code" href="classsdr_1_1_raw_buffer.html#a944346de6bb972f687716bee921a3bad">isEmpty</a>()) { <a class="code" href="classsdr_1_1_f_i_r_filter.html#a6f8f3db14310d350b5bffb6499513b1b">_buffer</a>.<a class="code" href="classsdr_1_1_raw_buffer.html#a8ffd3cbf476c9036bfada9ae8c7c5e05">unref</a>(); }</div>
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<div class="line"><a name="l00189"></a><span class="lineno"> 189</span> </div>
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<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  <span class="comment">// allocate buffer</span></div>
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<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <a class="code" href="classsdr_1_1_f_i_r_filter.html#a6f8f3db14310d350b5bffb6499513b1b">_buffer</a> = <a class="code" href="classsdr_1_1_buffer.html">Buffer<Scalar></a>(src_cfg.<a class="code" href="classsdr_1_1_config.html#a940f217ca5157e1a43c55fec08a22362">bufferSize</a>());</div>
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<div class="line"><a name="l00192"></a><span class="lineno"> 192</span> </div>
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<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  <span class="comment">// Clear ring buffer</span></div>
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<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i=0; i<<a class="code" href="classsdr_1_1_f_i_r_filter.html#af3fa19a8ce102614bf261b4e58134b01">_order</a>; i++) { <a class="code" href="classsdr_1_1_f_i_r_filter.html#a74c56d78d4e7fbb6fa20eaf9d284494b">_ring</a>[i] = 0; }</div>
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<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  <a class="code" href="classsdr_1_1_f_i_r_filter.html#aaad38be5e520d03c50877f94dfe19725">_ring_offset</a> = 0;</div>
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<div class="line"><a name="l00196"></a><span class="lineno"> 196</span> </div>
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<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  <a class="code" href="classsdr_1_1_log_message.html">LogMessage</a> msg(LOG_DEBUG);</div>
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<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  msg << <span class="stringliteral">"Configured FIRFilter:"</span> << std::endl</div>
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<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  << <span class="stringliteral">" type "</span> << src_cfg.<a class="code" href="classsdr_1_1_config.html#afebc90c2a5f54a8a3ab5b896cfe37724">type</a>() << std::endl</div>
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<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  << <span class="stringliteral">" sample rate "</span> << <a class="code" href="classsdr_1_1_f_i_r_filter.html#ad7caee7b3f07e5e38956ffc014d5baa6">_Fs</a> << std::endl</div>
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<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  << <span class="stringliteral">" buffer size "</span> << src_cfg.<a class="code" href="classsdr_1_1_config.html#a940f217ca5157e1a43c55fec08a22362">bufferSize</a>() << std::endl</div>
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<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>  << <span class="stringliteral">" order "</span> << <a class="code" href="classsdr_1_1_f_i_r_filter.html#af3fa19a8ce102614bf261b4e58134b01">_order</a>;</div>
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<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <a class="code" href="classsdr_1_1_logger.html#a9b12ce53593be134b7d7dea62607d22d">Logger::get</a>().<a class="code" href="classsdr_1_1_logger.html#ab887e598a2c4dc1a3a3f1027d91e0e58">log</a>(msg);</div>
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<div class="line"><a name="l00204"></a><span class="lineno"> 204</span> </div>
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<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="comment">// Propergate config</span></div>
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<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  this-><a class="code" href="classsdr_1_1_source.html#afd4c7e3fb94a057ac40e9877167791ec">setConfig</a>(<a class="code" href="classsdr_1_1_config.html">Config</a>(src_cfg.<a class="code" href="classsdr_1_1_config.html#afebc90c2a5f54a8a3ab5b896cfe37724">type</a>(), src_cfg.<a class="code" href="classsdr_1_1_config.html#a42cfb658302fd7de7729ce2c740e9275">sampleRate</a>(), src_cfg.<a class="code" href="classsdr_1_1_config.html#a940f217ca5157e1a43c55fec08a22362">bufferSize</a>(), 1));</div>
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<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  }</div>
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<div class="line"><a name="l00208"></a><span class="lineno"> 208</span> </div>
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<div class="line"><a name="l00209"></a><span class="lineno"> 209</span> </div>
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<div class="line"><a name="l00211"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_filter.html#aa2247006714c239918245574605014b9"> 211</a></span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#aa2247006714c239918245574605014b9">process</a>(<span class="keyword">const</span> <a class="code" href="classsdr_1_1_buffer.html">Buffer<Scalar></a> &buffer, <span class="keywordtype">bool</span> allow_overwrite) {</div>
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<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="comment">// If emtpy</span></div>
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<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  <span class="keywordflow">if</span> (0 == buffer.<a class="code" href="classsdr_1_1_buffer.html#ad2232275b51b1189daea15c6cd9b3a20">size</a>()) { <span class="comment">/* drop buffer */</span> }</div>
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<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  <span class="comment">// If disabled -> pass</span></div>
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<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  <span class="keywordflow">if</span> (!<a class="code" href="classsdr_1_1_f_i_r_filter.html#a72d1e0297c601f479ed46a46519fb502">_enabled</a>) { this-><a class="code" href="classsdr_1_1_source.html#a13921d5daa00574e2057c1ae1fc28054">send</a>(buffer, allow_overwrite); <span class="keywordflow">return</span>; }</div>
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<div class="line"><a name="l00216"></a><span class="lineno"> 216</span> </div>
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<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  <span class="comment">// Perform filtering in-place or out-of-place filtering</span></div>
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<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>  <span class="keywordflow">if</span> (allow_overwrite) { <a class="code" href="classsdr_1_1_f_i_r_filter.html#aef359a18aadcc324ae912c67d4bb352b">_process</a>(buffer, buffer); }</div>
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<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (<a class="code" href="classsdr_1_1_f_i_r_filter.html#a6f8f3db14310d350b5bffb6499513b1b">_buffer</a>.<a class="code" href="classsdr_1_1_raw_buffer.html#ab2f4ac2dc396108141ec8473bfb7f99a">isUnused</a>()) { <a class="code" href="classsdr_1_1_f_i_r_filter.html#aef359a18aadcc324ae912c67d4bb352b">_process</a>(buffer, <a class="code" href="classsdr_1_1_f_i_r_filter.html#a6f8f3db14310d350b5bffb6499513b1b">_buffer</a>); }</div>
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<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keywordflow">else</span> {</div>
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<div class="line"><a name="l00221"></a><span class="lineno"> 221</span> <span class="preprocessor">#ifdef SDR_DEBUG</span></div>
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<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <a class="code" href="classsdr_1_1_log_message.html">LogMessage</a> msg(LOG_WARNING);</div>
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<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  msg << <span class="stringliteral">"FIR Filter: Drop buffer, output buffer still in use."</span>;</div>
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<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  <a class="code" href="classsdr_1_1_logger.html#a9b12ce53593be134b7d7dea62607d22d">Logger::get</a>().<a class="code" href="classsdr_1_1_logger.html#ab887e598a2c4dc1a3a3f1027d91e0e58">log</a>(msg);</div>
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<div class="line"><a name="l00225"></a><span class="lineno"> 225</span> <span class="preprocessor">#endif</span></div>
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<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  }</div>
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<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>  }</div>
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<div class="line"><a name="l00228"></a><span class="lineno"> 228</span> </div>
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<div class="line"><a name="l00229"></a><span class="lineno"> 229</span> <span class="keyword">protected</span>:</div>
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<div class="line"><a name="l00231"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_filter.html#aef359a18aadcc324ae912c67d4bb352b"> 231</a></span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#aef359a18aadcc324ae912c67d4bb352b">_process</a>(<span class="keyword">const</span> <a class="code" href="classsdr_1_1_buffer.html">Buffer<Scalar></a> &in, <span class="keyword">const</span> <a class="code" href="classsdr_1_1_buffer.html">Buffer<Scalar></a> &out)</div>
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<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  {</div>
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<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i=0; i<in.<a class="code" href="classsdr_1_1_buffer.html#ad2232275b51b1189daea15c6cd9b3a20">size</a>(); i++) {</div>
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<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="comment">// Store input value into ring buffer</span></div>
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<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <a class="code" href="classsdr_1_1_f_i_r_filter.html#a74c56d78d4e7fbb6fa20eaf9d284494b">_ring</a>[<a class="code" href="classsdr_1_1_f_i_r_filter.html#aaad38be5e520d03c50877f94dfe19725">_ring_offset</a>] = in[i]; <a class="code" href="classsdr_1_1_f_i_r_filter.html#aaad38be5e520d03c50877f94dfe19725">_ring_offset</a>++;</div>
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<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="keywordflow">if</span> (<a class="code" href="classsdr_1_1_f_i_r_filter.html#aaad38be5e520d03c50877f94dfe19725">_ring_offset</a> == <a class="code" href="classsdr_1_1_f_i_r_filter.html#af3fa19a8ce102614bf261b4e58134b01">_order</a>) { <a class="code" href="classsdr_1_1_f_i_r_filter.html#aaad38be5e520d03c50877f94dfe19725">_ring_offset</a>=0; }</div>
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<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  out[i] = 0;</div>
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<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="comment">// Apply filter on ring buffer</span></div>
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<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keywordtype">size_t</span> idx = <a class="code" href="classsdr_1_1_f_i_r_filter.html#aaad38be5e520d03c50877f94dfe19725">_ring_offset</a>;</div>
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<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> j=0; j<<a class="code" href="classsdr_1_1_f_i_r_filter.html#af3fa19a8ce102614bf261b4e58134b01">_order</a>; j++, idx++) {</div>
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<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>  <span class="keywordflow">if</span> (idx == _order) { idx = 0; }</div>
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<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>  out[i] += <a class="code" href="classsdr_1_1_f_i_r_filter.html#ab9642beb28d53e0da14e78c903a16c88">_alpha</a>[j]*<a class="code" href="classsdr_1_1_f_i_r_filter.html#a74c56d78d4e7fbb6fa20eaf9d284494b">_ring</a>[idx];</div>
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<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  }</div>
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<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  }</div>
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<div class="line"><a name="l00245"></a><span class="lineno"> 245</span> </div>
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<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="comment">// Done.</span></div>
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<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  this-><a class="code" href="classsdr_1_1_source.html#a13921d5daa00574e2057c1ae1fc28054">send</a>(out.<a class="code" href="classsdr_1_1_buffer.html#a3eca322ed118a7b5c4cc62b25ce5d119">head</a>(in.<a class="code" href="classsdr_1_1_buffer.html#ad2232275b51b1189daea15c6cd9b3a20">size</a>()), <span class="keyword">true</span>);</div>
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<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  }</div>
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<div class="line"><a name="l00249"></a><span class="lineno"> 249</span> </div>
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<div class="line"><a name="l00250"></a><span class="lineno"> 250</span> </div>
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<div class="line"><a name="l00251"></a><span class="lineno"> 251</span> <span class="keyword">protected</span>:</div>
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<div class="line"><a name="l00253"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_filter.html#a72d1e0297c601f479ed46a46519fb502"> 253</a></span>  <span class="keywordtype">bool</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#a72d1e0297c601f479ed46a46519fb502">_enabled</a>;</div>
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<div class="line"><a name="l00255"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_filter.html#af3fa19a8ce102614bf261b4e58134b01"> 255</a></span>  <span class="keywordtype">size_t</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#af3fa19a8ce102614bf261b4e58134b01">_order</a>;</div>
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<div class="line"><a name="l00257"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_filter.html#a3e661ccb9bcdabd926f5e529f6d4dc2d"> 257</a></span>  <span class="keywordtype">double</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#a3e661ccb9bcdabd926f5e529f6d4dc2d">_Fl</a>;</div>
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<div class="line"><a name="l00259"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_filter.html#a8246c325efe878771231ee1e10e03ed8"> 259</a></span>  <span class="keywordtype">double</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#a8246c325efe878771231ee1e10e03ed8">_Fu</a>;</div>
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<div class="line"><a name="l00261"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_filter.html#ad7caee7b3f07e5e38956ffc014d5baa6"> 261</a></span>  <span class="keywordtype">double</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#ad7caee7b3f07e5e38956ffc014d5baa6">_Fs</a>;</div>
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<div class="line"><a name="l00263"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_filter.html#ab9642beb28d53e0da14e78c903a16c88"> 263</a></span>  std::vector<double> <a class="code" href="classsdr_1_1_f_i_r_filter.html#ab9642beb28d53e0da14e78c903a16c88">_alpha</a>;</div>
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<div class="line"><a name="l00265"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_filter.html#a74c56d78d4e7fbb6fa20eaf9d284494b"> 265</a></span>  <a class="code" href="classsdr_1_1_buffer.html">Buffer<Scalar></a> <a class="code" href="classsdr_1_1_f_i_r_filter.html#a74c56d78d4e7fbb6fa20eaf9d284494b">_ring</a>;</div>
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<div class="line"><a name="l00267"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_filter.html#aaad38be5e520d03c50877f94dfe19725"> 267</a></span>  <span class="keywordtype">size_t</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#aaad38be5e520d03c50877f94dfe19725">_ring_offset</a>;</div>
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<div class="line"><a name="l00269"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_filter.html#a6f8f3db14310d350b5bffb6499513b1b"> 269</a></span>  <a class="code" href="classsdr_1_1_buffer.html">Buffer<Scalar></a> <a class="code" href="classsdr_1_1_f_i_r_filter.html#a6f8f3db14310d350b5bffb6499513b1b">_buffer</a>;</div>
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<div class="line"><a name="l00270"></a><span class="lineno"> 270</span> };</div>
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<div class="line"><a name="l00271"></a><span class="lineno"> 271</span> </div>
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<div class="line"><a name="l00272"></a><span class="lineno"> 272</span> </div>
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<div class="line"><a name="l00275"></a><span class="lineno"> 275</span> <span class="keyword">template</span> <<span class="keyword">class</span> Scalar></div>
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<div class="line"><a name="l00276"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_low_pass.html"> 276</a></span> <span class="keyword">class </span><a class="code" href="classsdr_1_1_f_i_r_low_pass.html">FIRLowPass</a>: <span class="keyword">public</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html">FIRFilter</a><Scalar, FIRLowPassCoeffs></div>
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<div class="line"><a name="l00277"></a><span class="lineno"> 277</span> {</div>
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<div class="line"><a name="l00278"></a><span class="lineno"> 278</span> <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00280"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_low_pass.html#acc816ce385aa609f1e4d747855de87ca"> 280</a></span>  <a class="code" href="classsdr_1_1_f_i_r_low_pass.html#acc816ce385aa609f1e4d747855de87ca">FIRLowPass</a>(<span class="keywordtype">size_t</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#a97fad5ad5e7d18085d4d6c6904154836">order</a>, <span class="keywordtype">double</span> Fc)</div>
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<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>  : <a class="code" href="classsdr_1_1_f_i_r_filter.html">FIRFilter</a><Scalar, <a class="code" href="classsdr_1_1_f_i_r_low_pass_coeffs.html">FIRLowPassCoeffs</a>>(order, 0, Fc) { }</div>
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<div class="line"><a name="l00283"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_low_pass.html#a8bf39b3d0a1910339b995aedcc1ff9ae"> 283</a></span>  <span class="keyword">virtual</span> <a class="code" href="classsdr_1_1_f_i_r_low_pass.html#a8bf39b3d0a1910339b995aedcc1ff9ae">~FIRLowPass</a>() { }</div>
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<div class="line"><a name="l00285"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_low_pass.html#a2b208c92826e76738fa9a0bf31818736"> 285</a></span>  <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="classsdr_1_1_f_i_r_low_pass.html#a2b208c92826e76738fa9a0bf31818736">freq</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html">FIRFilter<Scalar, FIRLowPassCoeffs>::_Fu</a>; }</div>
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<div class="line"><a name="l00287"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_low_pass.html#a3c1e5b446425ab0d925d412aeda8348d"> 287</a></span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classsdr_1_1_f_i_r_low_pass.html#a3c1e5b446425ab0d925d412aeda8348d">setFreq</a>(<span class="keywordtype">double</span> <a class="code" href="classsdr_1_1_f_i_r_low_pass.html#a2b208c92826e76738fa9a0bf31818736">freq</a>) { <a class="code" href="classsdr_1_1_f_i_r_filter.html#a6c9f663cd552debe0ff032843d65f07d">FIRFilter<Scalar, FIRLowPassCoeffs>::setUpperFreq</a>(freq); }</div>
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<div class="line"><a name="l00288"></a><span class="lineno"> 288</span> };</div>
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<div class="line"><a name="l00289"></a><span class="lineno"> 289</span> </div>
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<div class="line"><a name="l00292"></a><span class="lineno"> 292</span> <span class="keyword">template</span> <<span class="keyword">class</span> Scalar></div>
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<div class="line"><a name="l00293"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_high_pass.html"> 293</a></span> <span class="keyword">class </span><a class="code" href="classsdr_1_1_f_i_r_high_pass.html">FIRHighPass</a>: <span class="keyword">public</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html">FIRFilter</a><Scalar, FIRHighPassCoeffs></div>
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<div class="line"><a name="l00294"></a><span class="lineno"> 294</span> {</div>
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<div class="line"><a name="l00295"></a><span class="lineno"> 295</span> <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00297"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_high_pass.html#a7a44da7f400f30bbbb763f7bd00d5660"> 297</a></span>  <a class="code" href="classsdr_1_1_f_i_r_high_pass.html#a7a44da7f400f30bbbb763f7bd00d5660">FIRHighPass</a>(<span class="keywordtype">size_t</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#a97fad5ad5e7d18085d4d6c6904154836">order</a>, <span class="keywordtype">double</span> Fc)</div>
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<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  : <a class="code" href="classsdr_1_1_f_i_r_filter.html">FIRFilter</a><Scalar, <a class="code" href="classsdr_1_1_f_i_r_high_pass_coeffs.html">FIRHighPassCoeffs</a>>(order, Fc, 0) { }</div>
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<div class="line"><a name="l00300"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_high_pass.html#aba45d7cad94acf73371d45b0194b8152"> 300</a></span>  <span class="keyword">virtual</span> <a class="code" href="classsdr_1_1_f_i_r_high_pass.html#aba45d7cad94acf73371d45b0194b8152">~FIRHighPass</a>() { }</div>
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<div class="line"><a name="l00302"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_high_pass.html#a58b576726bab60c3a47268a5c5740a95"> 302</a></span>  <span class="keyword">inline</span> <span class="keywordtype">double</span> <a class="code" href="classsdr_1_1_f_i_r_high_pass.html#a58b576726bab60c3a47268a5c5740a95">freq</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html">FIRFilter<Scalar, FIRLowPassCoeffs>::_Fl</a>; }</div>
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<div class="line"><a name="l00304"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_high_pass.html#a6a56f692b2cd9e91a962313db04cf51e"> 304</a></span>  <span class="keyword">inline</span> <span class="keywordtype">void</span> <a class="code" href="classsdr_1_1_f_i_r_high_pass.html#a6a56f692b2cd9e91a962313db04cf51e">setFreq</a>(<span class="keywordtype">double</span> <a class="code" href="classsdr_1_1_f_i_r_high_pass.html#a58b576726bab60c3a47268a5c5740a95">freq</a>) { <a class="code" href="classsdr_1_1_f_i_r_filter.html#a59adcf3e38e0af2a06fde7f1a68c76ca">FIRFilter<Scalar, FIRLowPassCoeffs>::setLowerFreq</a>(freq); }</div>
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<div class="line"><a name="l00305"></a><span class="lineno"> 305</span> };</div>
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<div class="line"><a name="l00306"></a><span class="lineno"> 306</span> </div>
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<div class="line"><a name="l00307"></a><span class="lineno"> 307</span> </div>
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<div class="line"><a name="l00310"></a><span class="lineno"> 310</span> <span class="keyword">template</span> <<span class="keyword">class</span> Scalar></div>
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<div class="line"><a name="l00311"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_band_pass.html"> 311</a></span> <span class="keyword">class </span><a class="code" href="classsdr_1_1_f_i_r_band_pass.html">FIRBandPass</a>: <span class="keyword">public</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html">FIRFilter</a><Scalar, FIRBandPassCoeffs></div>
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<div class="line"><a name="l00312"></a><span class="lineno"> 312</span> {</div>
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<div class="line"><a name="l00313"></a><span class="lineno"> 313</span> <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00315"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_band_pass.html#a8140caf5dd9255d52b9c8bb30f81cbff"> 315</a></span>  <a class="code" href="classsdr_1_1_f_i_r_band_pass.html#a8140caf5dd9255d52b9c8bb30f81cbff">FIRBandPass</a>(<span class="keywordtype">size_t</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#a97fad5ad5e7d18085d4d6c6904154836">order</a>, <span class="keywordtype">double</span> Fl, <span class="keywordtype">double</span> Fu)</div>
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<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  : <a class="code" href="classsdr_1_1_f_i_r_filter.html">FIRFilter</a><Scalar, <a class="code" href="classsdr_1_1_f_i_r_band_pass_coeffs.html">FIRBandPassCoeffs</a>>(order, Fl, Fu) { }</div>
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<div class="line"><a name="l00318"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_band_pass.html#af7d2ee90f2f981f048fb46e4b23fc691"> 318</a></span>  <span class="keyword">virtual</span> <a class="code" href="classsdr_1_1_f_i_r_band_pass.html#af7d2ee90f2f981f048fb46e4b23fc691">~FIRBandPass</a>() { }</div>
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<div class="line"><a name="l00319"></a><span class="lineno"> 319</span> };</div>
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<div class="line"><a name="l00320"></a><span class="lineno"> 320</span> </div>
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<div class="line"><a name="l00323"></a><span class="lineno"> 323</span> <span class="keyword">template</span> <<span class="keyword">class</span> Scalar></div>
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<div class="line"><a name="l00324"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_band_stop.html"> 324</a></span> <span class="keyword">class </span><a class="code" href="classsdr_1_1_f_i_r_band_stop.html">FIRBandStop</a>: <span class="keyword">public</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html">FIRFilter</a><Scalar, FIRBandStopCoeffs></div>
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<div class="line"><a name="l00325"></a><span class="lineno"> 325</span> {</div>
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<div class="line"><a name="l00326"></a><span class="lineno"> 326</span> <span class="keyword">public</span>:</div>
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<div class="line"><a name="l00328"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_band_stop.html#ae5b8813bc44edb38be704b44d1637946"> 328</a></span>  <a class="code" href="classsdr_1_1_f_i_r_band_stop.html#ae5b8813bc44edb38be704b44d1637946">FIRBandStop</a>(<span class="keywordtype">size_t</span> <a class="code" href="classsdr_1_1_f_i_r_filter.html#a97fad5ad5e7d18085d4d6c6904154836">order</a>, <span class="keywordtype">double</span> Fl, <span class="keywordtype">double</span> Fu)</div>
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<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  : <a class="code" href="classsdr_1_1_f_i_r_filter.html">FIRFilter</a><Scalar, <a class="code" href="classsdr_1_1_f_i_r_band_stop_coeffs.html">FIRBandStopCoeffs</a>>(order, Fl, Fu) { }</div>
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<div class="line"><a name="l00331"></a><span class="lineno"><a class="line" href="classsdr_1_1_f_i_r_band_stop.html#a3f1592d1526c9fdee0604fd734480aa7"> 331</a></span>  <span class="keyword">virtual</span> <a class="code" href="classsdr_1_1_f_i_r_band_stop.html#a3f1592d1526c9fdee0604fd734480aa7">~FIRBandStop</a>() { }</div>
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<div class="line"><a name="l00332"></a><span class="lineno"> 332</span> };</div>
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<div class="line"><a name="l00333"></a><span class="lineno"> 333</span> </div>
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<div class="line"><a name="l00334"></a><span class="lineno"> 334</span> }</div>
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<div class="line"><a name="l00335"></a><span class="lineno"> 335</span> </div>
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<div class="line"><a name="l00336"></a><span class="lineno"> 336</span> <span class="preprocessor">#endif // FIRFILTER_HH</span></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_band_stop_html"><div class="ttname"><a href="classsdr_1_1_f_i_r_band_stop.html">sdr::FIRBandStop</a></div><div class="ttdoc">Band-stop FIR filter specialization. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:324</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_band_stop_html_a3f1592d1526c9fdee0604fd734480aa7"><div class="ttname"><a href="classsdr_1_1_f_i_r_band_stop.html#a3f1592d1526c9fdee0604fd734480aa7">sdr::FIRBandStop::~FIRBandStop</a></div><div class="ttdeci">virtual ~FIRBandStop()</div><div class="ttdoc">Destructor. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:331</div></div>
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<div class="ttc" id="classsdr_1_1_config_html"><div class="ttname"><a href="classsdr_1_1_config.html">sdr::Config</a></div><div class="ttdoc">A collection of configuration information that is send by a source to all connected sinks to properga...</div><div class="ttdef"><b>Definition:</b> node.hh:35</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_filter_html_abd1d8a40766465d012eba2ea7c1fa539"><div class="ttname"><a href="classsdr_1_1_f_i_r_filter.html#abd1d8a40766465d012eba2ea7c1fa539">sdr::FIRFilter::~FIRFilter</a></div><div class="ttdeci">virtual ~FIRFilter()</div><div class="ttdoc">Destructor. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:129</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_band_pass_html"><div class="ttname"><a href="classsdr_1_1_f_i_r_band_pass.html">sdr::FIRBandPass</a></div><div class="ttdoc">Band-pass FIR filter specialization. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:311</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_band_stop_coeffs_html_ab16669fb8531dfbb1dea863efcb4ac78"><div class="ttname"><a href="classsdr_1_1_f_i_r_band_stop_coeffs.html#ab16669fb8531dfbb1dea863efcb4ac78">sdr::FIRBandStopCoeffs::coeffs</a></div><div class="ttdeci">static void coeffs(std::vector< double > &alpha, double Fl, double Fu, double Fs)</div><div class="ttdoc">Calculates the filter coefficients. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:93</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_filter_html_a8246c325efe878771231ee1e10e03ed8"><div class="ttname"><a href="classsdr_1_1_f_i_r_filter.html#a8246c325efe878771231ee1e10e03ed8">sdr::FIRFilter::_Fu</a></div><div class="ttdeci">double _Fu</div><div class="ttdoc">The upper edge frequency. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:259</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_band_pass_coeffs_html_abd6f0bbcbb0c20eb828bd5f80934fc66"><div class="ttname"><a href="classsdr_1_1_f_i_r_band_pass_coeffs.html#abd6f0bbcbb0c20eb828bd5f80934fc66">sdr::FIRBandPassCoeffs::coeffs</a></div><div class="ttdeci">static void coeffs(std::vector< double > &alpha, double Fl, double Fu, double Fs)</div><div class="ttdoc">Calculates the filter coefficients. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:67</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_low_pass_coeffs_html"><div class="ttname"><a href="classsdr_1_1_f_i_r_low_pass_coeffs.html">sdr::FIRLowPassCoeffs</a></div><div class="ttdoc">Implements the calculation of the filter coefficients for the use in the FIRFilter template class...</div><div class="ttdef"><b>Definition:</b> firfilter.hh:12</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_filter_html_ad7caee7b3f07e5e38956ffc014d5baa6"><div class="ttname"><a href="classsdr_1_1_f_i_r_filter.html#ad7caee7b3f07e5e38956ffc014d5baa6">sdr::FIRFilter::_Fs</a></div><div class="ttdeci">double _Fs</div><div class="ttdoc">Current sample rate. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:261</div></div>
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<div class="ttc" id="classsdr_1_1_source_html_a13921d5daa00574e2057c1ae1fc28054"><div class="ttname"><a href="classsdr_1_1_source.html#a13921d5daa00574e2057c1ae1fc28054">sdr::Source::send</a></div><div class="ttdeci">virtual void send(const RawBuffer &buffer, bool allow_overwrite=false)</div><div class="ttdoc">Sends the given buffer to all connected sinks. </div><div class="ttdef"><b>Definition:</b> node.cc:67</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_filter_html_aef359a18aadcc324ae912c67d4bb352b"><div class="ttname"><a href="classsdr_1_1_f_i_r_filter.html#aef359a18aadcc324ae912c67d4bb352b">sdr::FIRFilter::_process</a></div><div class="ttdeci">void _process(const Buffer< Scalar > &in, const Buffer< Scalar > &out)</div><div class="ttdoc">performs the actual computation </div><div class="ttdef"><b>Definition:</b> firfilter.hh:231</div></div>
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<div class="ttc" id="classsdr_1_1_sink_html"><div class="ttname"><a href="classsdr_1_1_sink.html">sdr::Sink</a></div><div class="ttdoc">Typed sink. </div><div class="ttdef"><b>Definition:</b> node.hh:192</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_high_pass_html_a58b576726bab60c3a47268a5c5740a95"><div class="ttname"><a href="classsdr_1_1_f_i_r_high_pass.html#a58b576726bab60c3a47268a5c5740a95">sdr::FIRHighPass::freq</a></div><div class="ttdeci">double freq() const </div><div class="ttdoc">Returns the filter frequency. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:302</div></div>
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<div class="ttc" id="namespacesdr_html"><div class="ttname"><a href="namespacesdr.html">sdr</a></div><div class="ttdef"><b>Definition:</b> autocast.hh:8</div></div>
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<div class="ttc" id="classsdr_1_1_raw_buffer_html_a944346de6bb972f687716bee921a3bad"><div class="ttname"><a href="classsdr_1_1_raw_buffer.html#a944346de6bb972f687716bee921a3bad">sdr::RawBuffer::isEmpty</a></div><div class="ttdeci">bool isEmpty() const </div><div class="ttdoc">Returns true if the buffer is invalid/empty. </div><div class="ttdef"><b>Definition:</b> buffer.hh:77</div></div>
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<div class="ttc" id="namespacestd_html"><div class="ttname"><a href="namespacestd.html">std</a></div><div class="ttdef"><b>Definition:</b> operators.hh:9</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_high_pass_html_a7a44da7f400f30bbbb763f7bd00d5660"><div class="ttname"><a href="classsdr_1_1_f_i_r_high_pass.html#a7a44da7f400f30bbbb763f7bd00d5660">sdr::FIRHighPass::FIRHighPass</a></div><div class="ttdeci">FIRHighPass(size_t order, double Fc)</div><div class="ttdoc">Constructor. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:297</div></div>
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<div class="ttc" id="classsdr_1_1_config_html_a5df3f75dcd6e678bd5f029a7400b404e"><div class="ttname"><a href="classsdr_1_1_config.html#a5df3f75dcd6e678bd5f029a7400b404e">sdr::Config::hasSampleRate</a></div><div class="ttdeci">bool hasSampleRate() const </div><div class="ttdoc">If true, the configuration has a sample rate. </div><div class="ttdef"><b>Definition:</b> node.hh:75</div></div>
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<div class="ttc" id="classsdr_1_1_source_html"><div class="ttname"><a href="classsdr_1_1_source.html">sdr::Source</a></div><div class="ttdoc">Generic source class. </div><div class="ttdef"><b>Definition:</b> node.hh:213</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_band_stop_coeffs_html"><div class="ttname"><a href="classsdr_1_1_f_i_r_band_stop_coeffs.html">sdr::FIRBandStopCoeffs</a></div><div class="ttdoc">Implements the calculation of the filter coefficients for the use in the FIRFilter template class...</div><div class="ttdef"><b>Definition:</b> firfilter.hh:89</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_low_pass_html_a8bf39b3d0a1910339b995aedcc1ff9ae"><div class="ttname"><a href="classsdr_1_1_f_i_r_low_pass.html#a8bf39b3d0a1910339b995aedcc1ff9ae">sdr::FIRLowPass::~FIRLowPass</a></div><div class="ttdeci">virtual ~FIRLowPass()</div><div class="ttdoc">Destructor. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:283</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_high_pass_html_aba45d7cad94acf73371d45b0194b8152"><div class="ttname"><a href="classsdr_1_1_f_i_r_high_pass.html#aba45d7cad94acf73371d45b0194b8152">sdr::FIRHighPass::~FIRHighPass</a></div><div class="ttdeci">virtual ~FIRHighPass()</div><div class="ttdoc">Destructor. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:300</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_low_pass_coeffs_html_ad10f9ddc869c9c33885dbf788a26deda"><div class="ttname"><a href="classsdr_1_1_f_i_r_low_pass_coeffs.html#ad10f9ddc869c9c33885dbf788a26deda">sdr::FIRLowPassCoeffs::coeffs</a></div><div class="ttdeci">static void coeffs(std::vector< double > &alpha, double Fl, double Fu, double Fs)</div><div class="ttdoc">Calculates the filter coefficients. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:16</div></div>
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<div class="ttc" id="classsdr_1_1_buffer_html_ad2232275b51b1189daea15c6cd9b3a20"><div class="ttname"><a href="classsdr_1_1_buffer.html#ad2232275b51b1189daea15c6cd9b3a20">sdr::Buffer::size</a></div><div class="ttdeci">size_t size() const </div><div class="ttdoc">Returns the number of elements of type T in this buffer. </div><div class="ttdef"><b>Definition:</b> buffer.hh:166</div></div>
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<div class="ttc" id="classsdr_1_1_config_html_a7cdfc69aa8e3ab975db7251747343a20"><div class="ttname"><a href="classsdr_1_1_config.html#a7cdfc69aa8e3ab975db7251747343a20">sdr::Config::hasType</a></div><div class="ttdeci">bool hasType() const </div><div class="ttdoc">If true, the configuration has a type. </div><div class="ttdef"><b>Definition:</b> node.hh:69</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_filter_html_a9681c7d0e584a03c914897cb2fd1604f"><div class="ttname"><a href="classsdr_1_1_f_i_r_filter.html#a9681c7d0e584a03c914897cb2fd1604f">sdr::FIRFilter::lowerFreq</a></div><div class="ttdeci">double lowerFreq() const </div><div class="ttdoc">Returns the lower edge frequency. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:156</div></div>
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<div class="ttc" id="classsdr_1_1_source_html_afd4c7e3fb94a057ac40e9877167791ec"><div class="ttname"><a href="classsdr_1_1_source.html#afd4c7e3fb94a057ac40e9877167791ec">sdr::Source::setConfig</a></div><div class="ttdeci">virtual void setConfig(const Config &config)</div><div class="ttdoc">Stores the configuration and propergates it if the configuration has been changed. </div><div class="ttdef"><b>Definition:</b> node.cc:98</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_filter_html_a74c56d78d4e7fbb6fa20eaf9d284494b"><div class="ttname"><a href="classsdr_1_1_f_i_r_filter.html#a74c56d78d4e7fbb6fa20eaf9d284494b">sdr::FIRFilter::_ring</a></div><div class="ttdeci">Buffer< Scalar > _ring</div><div class="ttdoc">A "ring-buffer" used to perform the filtering. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:265</div></div>
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<div class="ttc" id="classsdr_1_1_buffer_html_a3eca322ed118a7b5c4cc62b25ce5d119"><div class="ttname"><a href="classsdr_1_1_buffer.html#a3eca322ed118a7b5c4cc62b25ce5d119">sdr::Buffer::head</a></div><div class="ttdeci">Buffer< T > head(size_t n) const </div><div class="ttdoc">Returns a new view on this buffer. </div><div class="ttdef"><b>Definition:</b> buffer.hh:237</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_low_pass_html_acc816ce385aa609f1e4d747855de87ca"><div class="ttname"><a href="classsdr_1_1_f_i_r_low_pass.html#acc816ce385aa609f1e4d747855de87ca">sdr::FIRLowPass::FIRLowPass</a></div><div class="ttdeci">FIRLowPass(size_t order, double Fc)</div><div class="ttdoc">Constructor. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:280</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_band_pass_coeffs_html"><div class="ttname"><a href="classsdr_1_1_f_i_r_band_pass_coeffs.html">sdr::FIRBandPassCoeffs</a></div><div class="ttdoc">Implements the calculation of the filter coefficients for the use in the FIRFilter template class...</div><div class="ttdef"><b>Definition:</b> firfilter.hh:63</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_high_pass_coeffs_html"><div class="ttname"><a href="classsdr_1_1_f_i_r_high_pass_coeffs.html">sdr::FIRHighPassCoeffs</a></div><div class="ttdoc">Implements the calculation of the filter coefficients for the use in the FIRFilter template class...</div><div class="ttdef"><b>Definition:</b> firfilter.hh:38</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_filter_html_a72d1e0297c601f479ed46a46519fb502"><div class="ttname"><a href="classsdr_1_1_f_i_r_filter.html#a72d1e0297c601f479ed46a46519fb502">sdr::FIRFilter::_enabled</a></div><div class="ttdeci">bool _enabled</div><div class="ttdoc">If true, the filtering is enabled. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:253</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_filter_html"><div class="ttname"><a href="classsdr_1_1_f_i_r_filter.html">sdr::FIRFilter</a></div><div class="ttdoc">Generic FIR filter class. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:117</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_filter_html_ae8a63941ff482b039cf1cfdb79c0dc03"><div class="ttname"><a href="classsdr_1_1_f_i_r_filter.html#ae8a63941ff482b039cf1cfdb79c0dc03">sdr::FIRFilter::enable</a></div><div class="ttdeci">void enable(bool enable)</div><div class="ttdoc">Enable/Disable the filter. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:137</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_band_stop_html_ae5b8813bc44edb38be704b44d1637946"><div class="ttname"><a href="classsdr_1_1_f_i_r_band_stop.html#ae5b8813bc44edb38be704b44d1637946">sdr::FIRBandStop::FIRBandStop</a></div><div class="ttdeci">FIRBandStop(size_t order, double Fl, double Fu)</div><div class="ttdoc">Constructor. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:328</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_band_pass_html_af7d2ee90f2f981f048fb46e4b23fc691"><div class="ttname"><a href="classsdr_1_1_f_i_r_band_pass.html#af7d2ee90f2f981f048fb46e4b23fc691">sdr::FIRBandPass::~FIRBandPass</a></div><div class="ttdeci">virtual ~FIRBandPass()</div><div class="ttdoc">Destructor. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:318</div></div>
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<div class="ttc" id="classsdr_1_1_logger_html_ab887e598a2c4dc1a3a3f1027d91e0e58"><div class="ttname"><a href="classsdr_1_1_logger.html#ab887e598a2c4dc1a3a3f1027d91e0e58">sdr::Logger::log</a></div><div class="ttdeci">void log(const LogMessage &message)</div><div class="ttdoc">Logs a message. </div><div class="ttdef"><b>Definition:</b> logger.cc:100</div></div>
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<div class="ttc" id="classsdr_1_1_config_html_afebc90c2a5f54a8a3ab5b896cfe37724"><div class="ttname"><a href="classsdr_1_1_config.html#afebc90c2a5f54a8a3ab5b896cfe37724">sdr::Config::type</a></div><div class="ttdeci">Type type() const </div><div class="ttdoc">Returns the type. </div><div class="ttdef"><b>Definition:</b> node.hh:71</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_low_pass_html_a2b208c92826e76738fa9a0bf31818736"><div class="ttname"><a href="classsdr_1_1_f_i_r_low_pass.html#a2b208c92826e76738fa9a0bf31818736">sdr::FIRLowPass::freq</a></div><div class="ttdeci">double freq() const </div><div class="ttdoc">Returns the filter frequency. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:285</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_band_pass_html_a8140caf5dd9255d52b9c8bb30f81cbff"><div class="ttname"><a href="classsdr_1_1_f_i_r_band_pass.html#a8140caf5dd9255d52b9c8bb30f81cbff">sdr::FIRBandPass::FIRBandPass</a></div><div class="ttdeci">FIRBandPass(size_t order, double Fl, double Fu)</div><div class="ttdoc">Constructor. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:315</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_high_pass_coeffs_html_a64e44c1efb3e46aa54e66dbe5c593ba3"><div class="ttname"><a href="classsdr_1_1_f_i_r_high_pass_coeffs.html#a64e44c1efb3e46aa54e66dbe5c593ba3">sdr::FIRHighPassCoeffs::coeffs</a></div><div class="ttdeci">static void coeffs(std::vector< double > &alpha, double Fl, double Fu, double Fs)</div><div class="ttdoc">Calculates the filter coefficients. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:42</div></div>
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<div class="ttc" id="classsdr_1_1_logger_html_a9b12ce53593be134b7d7dea62607d22d"><div class="ttname"><a href="classsdr_1_1_logger.html#a9b12ce53593be134b7d7dea62607d22d">sdr::Logger::get</a></div><div class="ttdeci">static Logger & get()</div><div class="ttdoc">Returns the singleton instance of the logger. </div><div class="ttdef"><b>Definition:</b> logger.cc:89</div></div>
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<div class="ttc" id="classsdr_1_1_config_error_html"><div class="ttname"><a href="classsdr_1_1_config_error.html">sdr::ConfigError</a></div><div class="ttdoc">The configuration error class. </div><div class="ttdef"><b>Definition:</b> exception.hh:24</div></div>
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<div class="ttc" id="classsdr_1_1_log_message_html"><div class="ttname"><a href="classsdr_1_1_log_message.html">sdr::LogMessage</a></div><div class="ttdoc">A log message. </div><div class="ttdef"><b>Definition:</b> logger.hh:22</div></div>
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<div class="ttc" id="classsdr_1_1_config_html_a940f217ca5157e1a43c55fec08a22362"><div class="ttname"><a href="classsdr_1_1_config.html#a940f217ca5157e1a43c55fec08a22362">sdr::Config::bufferSize</a></div><div class="ttdeci">size_t bufferSize() const </div><div class="ttdoc">Returns the max. </div><div class="ttdef"><b>Definition:</b> node.hh:83</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_filter_html_aaad38be5e520d03c50877f94dfe19725"><div class="ttname"><a href="classsdr_1_1_f_i_r_filter.html#aaad38be5e520d03c50877f94dfe19725">sdr::FIRFilter::_ring_offset</a></div><div class="ttdeci">size_t _ring_offset</div><div class="ttdoc">Offset of the "ring-buffer". </div><div class="ttdef"><b>Definition:</b> firfilter.hh:267</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_filter_html_a3da50552081d57104580336ed0f1d80d"><div class="ttname"><a href="classsdr_1_1_f_i_r_filter.html#a3da50552081d57104580336ed0f1d80d">sdr::FIRFilter::setOrder</a></div><div class="ttdeci">virtual void setOrder(size_t order)</div><div class="ttdoc">Sets the order of the filter and updates the filter coefficients. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:142</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_filter_html_a97fad5ad5e7d18085d4d6c6904154836"><div class="ttname"><a href="classsdr_1_1_f_i_r_filter.html#a97fad5ad5e7d18085d4d6c6904154836">sdr::FIRFilter::order</a></div><div class="ttdeci">size_t order() const </div><div class="ttdoc">Returns the order of the filter. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:140</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_filter_html_a9aead6f43054bcfea0db9eee695b53e6"><div class="ttname"><a href="classsdr_1_1_f_i_r_filter.html#a9aead6f43054bcfea0db9eee695b53e6">sdr::FIRFilter::uppertFreq</a></div><div class="ttdeci">double uppertFreq() const </div><div class="ttdoc">Returns the upper edge frequency. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:164</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_filter_html_a6f8f3db14310d350b5bffb6499513b1b"><div class="ttname"><a href="classsdr_1_1_f_i_r_filter.html#a6f8f3db14310d350b5bffb6499513b1b">sdr::FIRFilter::_buffer</a></div><div class="ttdeci">Buffer< Scalar > _buffer</div><div class="ttdoc">The output buffer, unused if filtering is performed in-place. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:269</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_filter_html_af3fa19a8ce102614bf261b4e58134b01"><div class="ttname"><a href="classsdr_1_1_f_i_r_filter.html#af3fa19a8ce102614bf261b4e58134b01">sdr::FIRFilter::_order</a></div><div class="ttdeci">size_t _order</div><div class="ttdoc">The order of the filter. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:255</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_filter_html_add82f22f403ae4aaa004788a78bf6fb3"><div class="ttname"><a href="classsdr_1_1_f_i_r_filter.html#add82f22f403ae4aaa004788a78bf6fb3">sdr::FIRFilter::config</a></div><div class="ttdeci">virtual void config(const Config &src_cfg)</div><div class="ttdoc">Configures the filter. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:172</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_filter_html_a86bb334d886cebe30844cdf4e12c68a9"><div class="ttname"><a href="classsdr_1_1_f_i_r_filter.html#a86bb334d886cebe30844cdf4e12c68a9">sdr::FIRFilter::enabled</a></div><div class="ttdeci">bool enabled() const </div><div class="ttdoc">Returns true if the filter is enabled. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:135</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_high_pass_html_a6a56f692b2cd9e91a962313db04cf51e"><div class="ttname"><a href="classsdr_1_1_f_i_r_high_pass.html#a6a56f692b2cd9e91a962313db04cf51e">sdr::FIRHighPass::setFreq</a></div><div class="ttdeci">void setFreq(double freq)</div><div class="ttdoc">Sets the filter frequency. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:304</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_filter_html_ab9642beb28d53e0da14e78c903a16c88"><div class="ttname"><a href="classsdr_1_1_f_i_r_filter.html#ab9642beb28d53e0da14e78c903a16c88">sdr::FIRFilter::_alpha</a></div><div class="ttdeci">std::vector< double > _alpha</div><div class="ttdoc">The current filter coefficients. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:263</div></div>
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<div class="ttc" id="classsdr_1_1_raw_buffer_html_a8ffd3cbf476c9036bfada9ae8c7c5e05"><div class="ttname"><a href="classsdr_1_1_raw_buffer.html#a8ffd3cbf476c9036bfada9ae8c7c5e05">sdr::RawBuffer::unref</a></div><div class="ttdeci">void unref()</div><div class="ttdoc">Dereferences the buffer. </div><div class="ttdef"><b>Definition:</b> buffer.cc:63</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_high_pass_html"><div class="ttname"><a href="classsdr_1_1_f_i_r_high_pass.html">sdr::FIRHighPass</a></div><div class="ttdoc">High-pass FIR filter specialization. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:293</div></div>
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<div class="ttc" id="classsdr_1_1_raw_buffer_html_ab2f4ac2dc396108141ec8473bfb7f99a"><div class="ttname"><a href="classsdr_1_1_raw_buffer.html#ab2f4ac2dc396108141ec8473bfb7f99a">sdr::RawBuffer::isUnused</a></div><div class="ttdeci">bool isUnused() const </div><div class="ttdoc">We assume here that buffers are owned by one object: A buffer is therefore "unused" if the owner hold...</div><div class="ttdef"><b>Definition:</b> buffer.hh:87</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_low_pass_html_a3c1e5b446425ab0d925d412aeda8348d"><div class="ttname"><a href="classsdr_1_1_f_i_r_low_pass.html#a3c1e5b446425ab0d925d412aeda8348d">sdr::FIRLowPass::setFreq</a></div><div class="ttdeci">void setFreq(double freq)</div><div class="ttdoc">Sets the filter frequency. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:287</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_filter_html_a59adcf3e38e0af2a06fde7f1a68c76ca"><div class="ttname"><a href="classsdr_1_1_f_i_r_filter.html#a59adcf3e38e0af2a06fde7f1a68c76ca">sdr::FIRFilter::setLowerFreq</a></div><div class="ttdeci">void setLowerFreq(double Fl)</div><div class="ttdoc">Sets the lower edge frequency. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:158</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_filter_html_a3e661ccb9bcdabd926f5e529f6d4dc2d"><div class="ttname"><a href="classsdr_1_1_f_i_r_filter.html#a3e661ccb9bcdabd926f5e529f6d4dc2d">sdr::FIRFilter::_Fl</a></div><div class="ttdeci">double _Fl</div><div class="ttdoc">The lower edge frequency. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:257</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_filter_html_a6c9f663cd552debe0ff032843d65f07d"><div class="ttname"><a href="classsdr_1_1_f_i_r_filter.html#a6c9f663cd552debe0ff032843d65f07d">sdr::FIRFilter::setUpperFreq</a></div><div class="ttdeci">void setUpperFreq(double Fu)</div><div class="ttdoc">Sets the upper edge frequency. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:166</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_low_pass_html"><div class="ttname"><a href="classsdr_1_1_f_i_r_low_pass.html">sdr::FIRLowPass</a></div><div class="ttdoc">Low-pass FIR filter specialization. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:276</div></div>
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<div class="ttc" id="classsdr_1_1_buffer_html"><div class="ttname"><a href="classsdr_1_1_buffer.html">sdr::Buffer< Scalar ></a></div></div>
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<div class="ttc" id="classsdr_1_1_config_html_a485e488e1411e52c722b22d1807be406"><div class="ttname"><a href="classsdr_1_1_config.html#a485e488e1411e52c722b22d1807be406">sdr::Config::hasBufferSize</a></div><div class="ttdeci">bool hasBufferSize() const </div><div class="ttdoc">If true, the configuration has a buffer size. </div><div class="ttdef"><b>Definition:</b> node.hh:81</div></div>
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<div class="ttc" id="classsdr_1_1_config_html_a42cfb658302fd7de7729ce2c740e9275"><div class="ttname"><a href="classsdr_1_1_config.html#a42cfb658302fd7de7729ce2c740e9275">sdr::Config::sampleRate</a></div><div class="ttdeci">double sampleRate() const </div><div class="ttdoc">Returns the sample rate. </div><div class="ttdef"><b>Definition:</b> node.hh:77</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_filter_html_aa2247006714c239918245574605014b9"><div class="ttname"><a href="classsdr_1_1_f_i_r_filter.html#aa2247006714c239918245574605014b9">sdr::FIRFilter::process</a></div><div class="ttdeci">virtual void process(const Buffer< Scalar > &buffer, bool allow_overwrite)</div><div class="ttdoc">Performs the filtering. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:211</div></div>
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<div class="ttc" id="classsdr_1_1_f_i_r_filter_html_a94d565503488689e65a75199117146e1"><div class="ttname"><a href="classsdr_1_1_f_i_r_filter.html#a94d565503488689e65a75199117146e1">sdr::FIRFilter::FIRFilter</a></div><div class="ttdeci">FIRFilter(size_t order, double Fl, double Fu)</div><div class="ttdoc">Constructor. </div><div class="ttdef"><b>Definition:</b> firfilter.hh:121</div></div>
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