<!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_stretch_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_stretch_ff Class Reference</h1><!-- doxytag: class="gr_stretch_ff" --><!-- doxytag: inherits="gr_sync_block" --> <p><code>#include <<a class="el" href="gr__stretch__ff_8h_source.html">gr_stretch_ff.h</a>></code></p> <div class="dynheader"> Inheritance diagram for gr_stretch_ff:</div> <div class="dynsection"> <div class="center"><img src="classgr__stretch__ff__inherit__graph.png" border="0" usemap="#gr__stretch__ff_inherit__map" alt="Inheritance graph"/></div> <map name="gr__stretch__ff_inherit__map" id="gr__stretch__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"/></map> <center><span class="legend">[<a target="top" href="graph_legend.html">legend</a>]</span></center></div> <p><a href="classgr__stretch__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">float </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__stretch__ff.html#a385d21ffd672af362f21ee5af36661a9">lo</a> () const </td></tr> <tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__stretch__ff.html#aed4f985f816e4d709dabfb3771bc2746">set_lo</a> (float lo)</td></tr> <tr><td class="memItemLeft" align="right" valign="top">size_t </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__stretch__ff.html#ab19c17756e84749cd58bcc55db681042">vlen</a> () const </td></tr> <tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__stretch__ff.html#ac128b2d659be6886f9461e3ecb67f1c5">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="#ac128b2d659be6886f9461e3ecb67f1c5"></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_stretch_ff_sptr</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classgr__stretch__ff.html#afaaa7618cd94a3d722449f182fd2d62e">gr_make_stretch_ff</a> (float lo, size_t vlen)</td></tr> </table> <hr/><h2>Member Function Documentation</h2> <a class="anchor" id="a385d21ffd672af362f21ee5af36661a9"></a><!-- doxytag: member="gr_stretch_ff::lo" ref="a385d21ffd672af362f21ee5af36661a9" args="() const " --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">float gr_stretch_ff::lo </td> <td>(</td> <td class="paramname"></td> <td> ) </td> <td> const<code> [inline]</code></td> </tr> </table> </div> <div class="memdoc"> </div> </div> <a class="anchor" id="aed4f985f816e4d709dabfb3771bc2746"></a><!-- doxytag: member="gr_stretch_ff::set_lo" ref="aed4f985f816e4d709dabfb3771bc2746" args="(float lo)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">void gr_stretch_ff::set_lo </td> <td>(</td> <td class="paramtype">float </td> <td class="paramname"> <em>lo</em></td> <td> ) </td> <td><code> [inline]</code></td> </tr> </table> </div> <div class="memdoc"> </div> </div> <a class="anchor" id="ab19c17756e84749cd58bcc55db681042"></a><!-- doxytag: member="gr_stretch_ff::vlen" ref="ab19c17756e84749cd58bcc55db681042" args="() const " --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">size_t gr_stretch_ff::vlen </td> <td>(</td> <td class="paramname"></td> <td> ) </td> <td> const<code> [inline]</code></td> </tr> </table> </div> <div class="memdoc"> </div> </div> <a class="anchor" id="ac128b2d659be6886f9461e3ecb67f1c5"></a><!-- doxytag: member="gr_stretch_ff::work" ref="ac128b2d659be6886f9461e3ecb67f1c5" 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">int gr_stretch_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="afaaa7618cd94a3d722449f182fd2d62e"></a><!-- doxytag: member="gr_stretch_ff::gr_make_stretch_ff" ref="afaaa7618cd94a3d722449f182fd2d62e" args="(float lo, size_t vlen)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname"><a class="el" href="classboost_1_1shared__ptr.html">gr_stretch_ff_sptr</a> gr_make_stretch_ff </td> <td>(</td> <td class="paramtype">float </td> <td class="paramname"> <em>lo</em>, </td> </tr> <tr> <td class="paramkey"></td> <td></td> <td class="paramtype">size_t </td> <td class="paramname"> <em>vlen</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__stretch__ff_8h_source.html">gr_stretch_ff.h</a></li> </ul> </div> <hr class="footer"/><address style="text-align: 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