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<div class="title">atsci_trellis_encoder.h</div> </div>
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<a href="atsci__trellis__encoder_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 2002 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 _ATSC_TRELLIS_ENCODER_H_</span></div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor"></span><span class="preprocessor">#define _ATSC_TRELLIS_ENCODER_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="atsc__api_8h.html">atsc_api.h</a>></span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="preprocessor">#include <<a class="code" href="atsci__basic__trellis__encoder_8h.html">atsci_basic_trellis_encoder.h</a>></span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include <<a class="code" href="atsc__types_8h.html">atsc_types.h</a>></span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment"></span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment">/*!</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment"> * \brief fancy, schmancy 12-way interleaved trellis encoder for ATSC</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> </div>
<div class="line"><a name="l00034"></a><span class="lineno"><a class="code" href="classatsci__trellis__encoder.html"> 34</a></span> <span class="keyword">class </span><a class="code" href="atsc__api_8h.html#a5c987bdbab9053a0d6650b8035e8662a">ATSC_API</a> <a class="code" href="classatsci__trellis__encoder.html" title="fancy, schmancy 12-way interleaved trellis encoder for ATSC">atsci_trellis_encoder</a> {</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>  <span class="keyword">public</span>:</div>
<div class="line"><a name="l00036"></a><span class="lineno"><a class="code" href="classatsci__trellis__encoder.html#a03e72454b9a3e32233a862cae64a52a0"> 36</a></span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> NCODERS = 12;</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span> </div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  <a class="code" href="classatsci__trellis__encoder.html" title="fancy, schmancy 12-way interleaved trellis encoder for ATSC">atsci_trellis_encoder</a> ();</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  ~<a class="code" href="classatsci__trellis__encoder.html" title="fancy, schmancy 12-way interleaved trellis encoder for ATSC">atsci_trellis_encoder</a> ();</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"></span></div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> //! reset all encoder states</span></div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"></span> <span class="keywordtype">void</span> reset ();</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment"></span></div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment"> /*!</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment"> * Take 12 RS encoded, convolutionally interleaved segments and</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"> * produce 12 trellis coded data segments. We work in groups of 12</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment"> * because that's the smallest number of segments that composes a</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment"> * single full cycle of the encoder mux.</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment"> */</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordtype">void</span> <a class="code" href="viterbi_8h.html#a8a39b7a2d9d4d5c96d9e894faa1af349">encode</a> (<a class="code" href="classatsc__data__segment.html" title="contains 832 3 bit symbols. The low 3 bits in the byte hold the symbol.">atsc_data_segment</a> out[NCODERS],</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="keyword">const</span> <a class="code" href="classatsc__mpeg__packet__rs__encoded.html">atsc_mpeg_packet_rs_encoded</a> in[NCODERS]);</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</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">protected</span>:</div>
<div class="line"><a name="l00055"></a><span class="lineno"><a class="code" href="classatsci__trellis__encoder.html#a3e2c569d172cf231dcc0c7e744a585d7"> 55</a></span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> SEGMENT_SIZE = <a class="code" href="atsc__consts_8h.html#a7c0eb90bde7d56f842375f332247c0a5">ATSC_MPEG_RS_ENCODED_LENGTH</a>; <span class="comment">// 207</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"><a class="code" href="classatsci__trellis__encoder.html#a650db430d766ff15c2372f3c9fba62ca"> 56</a></span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> INPUT_SIZE = (SEGMENT_SIZE * 12);</div>
<div class="line"><a name="l00057"></a><span class="lineno"><a class="code" href="classatsci__trellis__encoder.html#afecf24b0711360dd6a939df9b90bf644"> 57</a></span>  <span class="keyword">static</span> <span class="keyword">const</span> <span class="keywordtype">int</span> OUTPUT_SIZE = (<a class="code" href="atsc__consts_8h.html#a06eb585fe7990a888ac9accd568c5230">ATSC_DATA_SEGMENT_LENGTH</a> * 12);</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span> </div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordtype">void</span> encode_helper (<span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> out[OUTPUT_SIZE],</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  <span class="keyword">const</span> <span class="keywordtype">unsigned</span> <span class="keywordtype">char</span> in[INPUT_SIZE]);</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span> </div>
<div class="line"><a name="l00062"></a><span class="lineno"><a class="code" href="classatsci__trellis__encoder.html#a3984f5c41bb9051d2bcfe98fc80a5f00"> 62</a></span>  <a class="code" href="classatsci__basic__trellis__encoder.html" title="ATSC trellis encoder building block.">atsci_basic_trellis_encoder</a> enc[NCODERS];</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  <span class="keywordtype">bool</span> debug;</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> </div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span> </div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="preprocessor">#endif </span><span class="comment">/* _ATSC_TRELLIS_ENCODER_H_ */</span><span class="preprocessor"></span></div>
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