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<h1>trellis_viterbi_i Class Reference<br/>
<small>
[<a class="el" href="group__coding__blk.html">Information Coding and Decoding</a>]</small>
</h1><!-- doxytag: class="trellis_viterbi_i" --><!-- doxytag: inherits="gr_block" -->
<p><code>#include <<a class="el" href="trellis__viterbi__i_8h_source.html">trellis_viterbi_i.h</a>></code></p>
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Inheritance diagram for trellis_viterbi_i:</div>
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<div class="center"><img src="classtrellis__viterbi__i__inherit__graph.png" border="0" usemap="#trellis__viterbi__i_inherit__map" alt="Inheritance graph"/></div>
<map name="trellis__viterbi__i_inherit__map" id="trellis__viterbi__i_inherit__map">
<area shape="rect" id="node2" 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="node4" 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="node6" 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="node8" 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="classtrellis__viterbi__i-members.html">List of all members.</a></p>
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<tr><td colspan="2"><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classfsm.html">fsm</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classtrellis__viterbi__i.html#a5103fbe3397e0b47fd4e640845b753c3">FSM</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classtrellis__viterbi__i.html#a60e89e726331cfe5767034fcb2321bb6">K</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classtrellis__viterbi__i.html#ace2aba30576301b250003ad88cc9f2a6">S0</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classtrellis__viterbi__i.html#a4cd76eab81016402ae3f4b065449bfff">SK</a> () const </td></tr>
<tr><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classtrellis__viterbi__i.html#a6ce75d28039f254a7845a81cba4e1b0e">forecast</a> (int noutput_items, <a class="el" href="classstd_1_1vector.html">gr_vector_int</a> &ninput_items_required)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Estimate input requirements given output request. <a href="#a6ce75d28039f254a7845a81cba4e1b0e"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classtrellis__viterbi__i.html#a32dbed769368f42d0753a066d09fb2e1">general_work</a> (int noutput_items, <a class="el" href="classstd_1_1vector.html">gr_vector_int</a> &ninput_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">compute output items from input items <a href="#a32dbed769368f42d0753a066d09fb2e1"></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">trellis_viterbi_i_sptr</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classtrellis__viterbi__i.html#ad28afee632fff821c51f178165bbbab9">trellis_make_viterbi_i</a> (const <a class="el" href="classfsm.html">fsm</a> &FSM, int K, int S0, int SK)</td></tr>
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<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a6ce75d28039f254a7845a81cba4e1b0e"></a><!-- doxytag: member="trellis_viterbi_i::forecast" ref="a6ce75d28039f254a7845a81cba4e1b0e" args="(int noutput_items, gr_vector_int &ninput_items_required)" -->
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<td class="memname">void trellis_viterbi_i::forecast </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>noutput_items</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classstd_1_1vector.html">gr_vector_int</a> & </td>
<td class="paramname"> <em>ninput_items_required</em></td><td> </td>
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<td>)</td>
<td></td><td></td><td><code> [virtual]</code></td>
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<p>Estimate input requirements given output request. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>noutput_items</em> </td><td>number of output items to produce </td></tr>
<tr><td valign="top"></td><td valign="top"><em>ninput_items_required</em> </td><td>number of input items required on each input stream</td></tr>
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</dd>
</dl>
<p>Given a request to product <code>noutput_items</code>, estimate the number of data items required on each input stream. The estimate doesn't have to be exact, but should be close. </p>
<p>Reimplemented from <a class="el" href="classgr__block.html#aa1f2518b5c97126bb015adb9e2027f4a">gr_block</a>.</p>
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<a class="anchor" id="a5103fbe3397e0b47fd4e640845b753c3"></a><!-- doxytag: member="trellis_viterbi_i::FSM" ref="a5103fbe3397e0b47fd4e640845b753c3" args="() const " -->
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<td class="memname"><a class="el" href="classfsm.html">fsm</a> trellis_viterbi_i::FSM </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td> const<code> [inline]</code></td>
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<a class="anchor" id="a32dbed769368f42d0753a066d09fb2e1"></a><!-- doxytag: member="trellis_viterbi_i::general_work" ref="a32dbed769368f42d0753a066d09fb2e1" args="(int noutput_items, gr_vector_int &ninput_items, gr_vector_const_void_star &input_items, gr_vector_void_star &output_items)" -->
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<td class="memname">int trellis_viterbi_i::general_work </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>noutput_items</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classstd_1_1vector.html">gr_vector_int</a> & </td>
<td class="paramname"> <em>ninput_items</em>, </td>
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<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>
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<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>
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<td></td>
<td>)</td>
<td></td><td></td><td><code> [virtual]</code></td>
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<p>compute output items from input items </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table border="0" cellspacing="2" cellpadding="0">
<tr><td valign="top"></td><td valign="top"><em>noutput_items</em> </td><td>number of output items to write on each output stream </td></tr>
<tr><td valign="top"></td><td valign="top"><em>ninput_items</em> </td><td>number of input items available on each input stream </td></tr>
<tr><td valign="top"></td><td valign="top"><em>input_items</em> </td><td>vector of pointers to the input items, one entry per input stream </td></tr>
<tr><td valign="top"></td><td valign="top"><em>output_items</em> </td><td>vector of pointers to the output items, one entry per output stream</td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>number of items actually written to each output stream, or -1 on EOF. It is OK to return a value less than noutput_items. -1 <= return value <= noutput_items</dd></dl>
<p>general_work must call consume or consume_each to indicate how many items were consumed on each input stream. </p>
<p>Implements <a class="el" href="classgr__block.html#a137b93d87dc83bbdb6369d33f4ea8197">gr_block</a>.</p>
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<a class="anchor" id="a60e89e726331cfe5767034fcb2321bb6"></a><!-- doxytag: member="trellis_viterbi_i::K" ref="a60e89e726331cfe5767034fcb2321bb6" args="() const " -->
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<td class="memname">int trellis_viterbi_i::K </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td> const<code> [inline]</code></td>
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<a class="anchor" id="ace2aba30576301b250003ad88cc9f2a6"></a><!-- doxytag: member="trellis_viterbi_i::S0" ref="ace2aba30576301b250003ad88cc9f2a6" args="() const " -->
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<td class="memname">int trellis_viterbi_i::S0 </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td> const<code> [inline]</code></td>
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</div>
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<a class="anchor" id="a4cd76eab81016402ae3f4b065449bfff"></a><!-- doxytag: member="trellis_viterbi_i::SK" ref="a4cd76eab81016402ae3f4b065449bfff" args="() const " -->
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<td class="memname">int trellis_viterbi_i::SK </td>
<td>(</td>
<td class="paramname"></td>
<td> ) </td>
<td> const<code> [inline]</code></td>
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<hr/><h2>Friends And Related Function Documentation</h2>
<a class="anchor" id="ad28afee632fff821c51f178165bbbab9"></a><!-- doxytag: member="trellis_viterbi_i::trellis_make_viterbi_i" ref="ad28afee632fff821c51f178165bbbab9" args="(const fsm &FSM, int K, int S0, int SK)" -->
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<td class="memname"><a class="el" href="classboost_1_1shared__ptr.html">trellis_viterbi_i_sptr</a> trellis_make_viterbi_i </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classfsm.html">fsm</a> & </td>
<td class="paramname"> <em>FSM</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>K</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>S0</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"> <em>SK</em></td><td> </td>
</tr>
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<td></td>
<td>)</td>
<td></td><td></td><td><code> [friend]</code></td>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="trellis__viterbi__i_8h_source.html">trellis_viterbi_i.h</a></li>
</ul>
</div>
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