<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <title>GNU Radio 3.3.0 C++ API: gr_agc2_ff Class Reference</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <link href="doxygen.css" rel="stylesheet" type="text/css"/> </head> <body> <!-- Generated by Doxygen 1.6.3 --> <div class="contents"> <h1>gr_agc2_ff Class Reference<br/> <small> [<a class="el" href="group__level__blk.html">Signal Level Control (AGC)</a>]</small> </h1><!-- doxytag: class="gr_agc2_ff" --><!-- doxytag: inherits="gr_sync_block,gri_agc2_ff" --> <p>high performance Automatic Gain Control class <a href="#_details">More...</a></p> <p><code>#include <<a class="el" href="gr__agc2__ff_8h_source.html">gr_agc2_ff.h</a>></code></p> <div class="dynheader"> Inheritance diagram for gr_agc2_ff:</div> <div class="dynsection"> <div class="center"><img src="classgr__agc2__ff__inherit__graph.png" border="0" usemap="#gr__agc2__ff_inherit__map" alt="Inheritance graph"/></div> <map name="gr__agc2__ff_inherit__map" id="gr__agc2__ff_inherit__map"> <area shape="rect" id="node2" href="classgr__sync__block.html" title="synchronous 1:1 input to output with historyOverride work to provide the signal processing..." alt="" coords="21,315,128,344"/><area shape="rect" id="node4" href="classgr__block.html" title="The abstract base class for all 'terminal' processing blocks.A signal processing..." alt="" coords="40,237,109,267"/><area shape="rect" id="node6" href="classgr__basic__block.html" title="The abstract base class for all signal processing blocks.Basic blocks are the bare..." alt="" coords="20,160,129,189"/><area shape="rect" id="node8" href="classgr__msg__accepter.html" title="Accepts messages and inserts them into a message queue, then notifies subclass gr_basic_block..." alt="" coords="13,83,136,112"/><area shape="rect" id="node10" href="classgruel_1_1msg__accepter.html" title="Virtual base class that accepts messages." alt="" coords="5,5,144,35"/><area shape="rect" id="node12" href="classgri__agc2__ff.html" title="high performance Automatic Gain Control class with attack and decay rate" alt="" coords="152,315,237,344"/></map> <center><span class="legend">[<a target="top" href="graph_legend.html">legend</a>]</span></center></div> <p><a href="classgr__agc2__ff-members.html">List of all members.</a></p> <table border="0" cellpadding="0" cellspacing="0"> <tr><td colspan="2"><h2>Public Member Functions</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top">virtual int </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__agc2__ff.html#a094fa1c47d29330845c4ace9d3248784">work</a> (int noutput_items, <a class="el" href="classstd_1_1vector.html">gr_vector_const_void_star</a> &input_items, <a class="el" href="classstd_1_1vector.html">gr_vector_void_star</a> &output_items)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">just like <a class="el" href="classgr__block.html#a137b93d87dc83bbdb6369d33f4ea8197" title="compute output items from input items">gr_block::general_work</a>, only this arranges to call consume_each for you <a href="#a094fa1c47d29330845c4ace9d3248784"></a><br/></td></tr> <tr><td colspan="2"><h2>Friends</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classboost_1_1shared__ptr.html">gr_agc2_ff_sptr</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__agc2__ff.html#a207c2a4c7a05116938e48ed9650ee446">gr_make_agc2_ff</a> (float attack_rate, float decay_rate, float reference, float gain, float max_gain)</td></tr> </table> <hr/><a name="_details"></a><h2>Detailed Description</h2> <p>high performance Automatic Gain Control class </p> <p>Power is approximated by absolute value </p> <hr/><h2>Member Function Documentation</h2> <a class="anchor" id="a094fa1c47d29330845c4ace9d3248784"></a><!-- doxytag: member="gr_agc2_ff::work" ref="a094fa1c47d29330845c4ace9d3248784" args="(int noutput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">virtual int gr_agc2_ff::work </td> <td>(</td> <td class="paramtype">int </td> <td class="paramname"> <em>noutput_items</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="classstd_1_1vector.html">gr_vector_const_void_star</a> & </td> <td class="paramname"> <em>input_items</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype"><a class="el" href="classstd_1_1vector.html">gr_vector_void_star</a> & </td> <td class="paramname"> <em>output_items</em></td><td> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td><td><code> [virtual]</code></td> </tr> </table> </div> <div class="memdoc"> <p>just like <a class="el" href="classgr__block.html#a137b93d87dc83bbdb6369d33f4ea8197" title="compute output items from input items">gr_block::general_work</a>, only this arranges to call consume_each for you </p> <p>The user must override work to define the signal processing code </p> <p>Implements <a class="el" href="classgr__sync__block.html#a0c523f4285a6eb690f677ee6295ab117">gr_sync_block</a>.</p> </div> </div> <hr/><h2>Friends And Related Function Documentation</h2> <a class="anchor" id="a207c2a4c7a05116938e48ed9650ee446"></a><!-- doxytag: member="gr_agc2_ff::gr_make_agc2_ff" ref="a207c2a4c7a05116938e48ed9650ee446" args="(float attack_rate, float decay_rate, float reference, float gain, float max_gain)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname"><a class="el" href="classboost_1_1shared__ptr.html">gr_agc2_ff_sptr</a> gr_make_agc2_ff </td> <td>(</td> <td class="paramtype">float </td> <td class="paramname"> <em>attack_rate</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">float </td> <td class="paramname"> <em>decay_rate</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">float </td> <td class="paramname"> <em>reference</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">float </td> <td class="paramname"> <em>gain</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">float </td> <td class="paramname"> <em>max_gain</em></td><td> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td><td><code> [friend]</code></td> </tr> </table> </div> <div class="memdoc"> </div> </div> <hr/>The documentation for this class was generated from the following file:<ul> <li><a class="el" href="gr__agc2__ff_8h_source.html">gr_agc2_ff.h</a></li> </ul> </div> <hr class="footer"/><address style="text-align: right;"><small>Generated on Wed Dec 29 19:52:38 2010 for GNU Radio 3.3.0 C++ API by <a 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