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<div class="title">squelch_base_ff_impl.h</div> </div>
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<a href="squelch__base__ff__impl_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">/* -*- c++ -*- */</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">/*</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"> * Copyright 2006,2012 Free Software Foundation, Inc.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment"> * This file is part of GNU Radio</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"> * GNU Radio is free software; you can redistribute it and/or modify</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> * it under the terms of the GNU General Public License as published by</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"> * the Free Software Foundation; either version 3, or (at your option)</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment"> * any later version.</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment"> * GNU Radio is distributed in the hope that it will be useful,</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"> * GNU General Public License for more details.</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment"> *</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment"> * You should have received a copy of the GNU General Public License</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"> * along with GNU Radio; see the file COPYING. If not, write to</span></div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment"> * the Free Software Foundation, Inc., 51 Franklin Street,</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> * Boston, MA 02110-1301, USA.</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> </div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="preprocessor">#ifndef INCLUDED_GR_SQUELCH_BASE_FF_IMPL_H</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor"></span><span class="preprocessor">#define INCLUDED_GR_SQUELCH_BASE_FF_IMPL_H</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="preprocessor"></span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="preprocessor">#include <<a class="code" href="squelch__base__ff_8h.html">analog/squelch_base_ff.h</a>></span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> </div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="keyword">namespace </span>gr {</div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>  <span class="keyword">namespace </span>analog {</div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> </div>
<div class="line"><a name="l00031"></a><span class="lineno"><a class="code" href="classgr_1_1analog_1_1squelch__base__ff__impl.html"> 31</a></span>  <span class="keyword">class </span><a class="code" href="classgr_1_1analog_1_1squelch__base__ff__impl.html">squelch_base_ff_impl</a> : <span class="keyword">public</span> <a class="code" href="classgr_1_1analog_1_1squelch__base__ff.html" title="basic squelch block; to be subclassed for other squelches.">squelch_base_ff</a></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  {</div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>  <span class="keyword">private</span>:</div>
<div class="line"><a name="l00034"></a><span class="lineno"> 34</span>  <span class="keywordtype">int</span> d_ramp;</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keywordtype">int</span> d_ramped;</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <span class="keywordtype">bool</span> d_gate;</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keywordtype">double</span> d_envelope;</div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <span class="keyword">enum</span> { ST_MUTED, ST_ATTACK, ST_UNMUTED, ST_DECAY } d_state;</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span> </div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  <span class="keyword">protected</span>:</div>
<div class="line"><a name="l00041"></a><span class="lineno"><a class="code" href="classgr_1_1analog_1_1squelch__base__ff__impl.html#a5400534e2fd35ffc6854f35ba31eb7ba"> 41</a></span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> <a class="code" href="classgr_1_1analog_1_1squelch__base__ff__impl.html#a5400534e2fd35ffc6854f35ba31eb7ba">update_state</a>(<span class="keyword">const</span> <span class="keywordtype">float</span> &sample) {};</div>
<div class="line"><a name="l00042"></a><span class="lineno"><a class="code" href="classgr_1_1analog_1_1squelch__base__ff__impl.html#ad5341b33dd8c9e970cd9043e2fc05c38"> 42</a></span>  <span class="keyword">virtual</span> <span class="keywordtype">bool</span> <a class="code" href="classgr_1_1analog_1_1squelch__base__ff__impl.html#ad5341b33dd8c9e970cd9043e2fc05c38">mute</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <span class="keyword">false</span>; };</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <a class="code" href="classgr_1_1analog_1_1squelch__base__ff__impl.html#a6bb9d114d50e2d589c019af3ff41edbd">squelch_base_ff_impl</a>(<span class="keyword">const</span> <span class="keywordtype">char</span> *<a class="code" href="classgr__basic__block.html#aa12a20d8b8eab341da935530d29299d2">name</a>, <span class="keywordtype">int</span> <a class="code" href="classgr_1_1analog_1_1squelch__base__ff__impl.html#a75a8835e53745899cae1d9acdddbfe2c">ramp</a>, <span class="keywordtype">bool</span> <a class="code" href="classgr_1_1analog_1_1squelch__base__ff__impl.html#a5574dd32d86a027529f104fb4a61bfcf">gate</a>);</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <a class="code" href="classgr_1_1analog_1_1squelch__base__ff__impl.html#a099f19f9d64f6ce3cb11b7ebd6241ca9">~squelch_base_ff_impl</a>();</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="keywordtype">int</span> <a class="code" href="classgr_1_1analog_1_1squelch__base__ff__impl.html#a75a8835e53745899cae1d9acdddbfe2c">ramp</a>() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="keywordtype">void</span> <a class="code" href="classgr_1_1analog_1_1squelch__base__ff__impl.html#a776165972cd750e8fe0a766af8f51961">set_ramp</a>(<span class="keywordtype">int</span> <a class="code" href="classgr_1_1analog_1_1squelch__base__ff__impl.html#a75a8835e53745899cae1d9acdddbfe2c">ramp</a>);</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordtype">bool</span> <a class="code" href="classgr_1_1analog_1_1squelch__base__ff__impl.html#a5574dd32d86a027529f104fb4a61bfcf">gate</a>() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keywordtype">void</span> <a class="code" href="classgr_1_1analog_1_1squelch__base__ff__impl.html#abbde42ce7cb4b09577ef27379c285511">set_gate</a>(<span class="keywordtype">bool</span> <a class="code" href="classgr_1_1analog_1_1squelch__base__ff__impl.html#a5574dd32d86a027529f104fb4a61bfcf">gate</a>);</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keywordtype">bool</span> <a class="code" href="classgr_1_1analog_1_1squelch__base__ff__impl.html#afb05f6853db20f72a9345712b5339f38">unmuted</a>() <span class="keyword">const</span>;</div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="keyword">virtual</span> std::vector<float> <a class="code" href="classgr_1_1analog_1_1squelch__base__ff__impl.html#a36ae4b9f3c929bbfd7d5f4a6e9b520c0">squelch_range</a>() <span class="keyword">const</span> = 0;</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordtype">int</span> <a class="code" href="classgr_1_1analog_1_1squelch__base__ff__impl.html#a5055f89a8fa3887a79a84c2e56417a73" title="compute output items from input items">general_work</a>(<span class="keywordtype">int</span> noutput_items,</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <a class="code" href="gr__types_8h.html#ab02d0a829d67d39e3ac3163016d3a8be">gr_vector_int</a> &ninput_items,</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <a class="code" href="gr__types_8h.html#a9852a3d906d823cb70eb9c29e7f2a43d">gr_vector_const_void_star</a> &input_items,</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <a class="code" href="gr__types_8h.html#acd3f499576e769966ea44554b359d949">gr_vector_void_star</a> &output_items);</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  };</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  } <span class="comment">/* namespace analog */</span></div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span> } <span class="comment">/* namespace gr */</span></div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span> </div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="preprocessor">#endif </span><span class="comment">/* INCLUDED_ANALOG_SQUELCH_BASE_IMPL_FF_H */</span><span class="preprocessor"></span></div>
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