<!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"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.3"/> <title>GNU Radio 3.6.4.1 C++ API: file_meta_source.h Source File</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="navtree.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="resize.js"></script> <script type="text/javascript" src="navtree.js"></script> <script type="text/javascript"> $(document).ready(initResizable); $(window).load(resizeHeight); </script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td style="padding-left: 0.5em;"> <div id="projectname">GNU Radio 3.6.4.1 C++ API </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.3 --> </div><!-- top --> <div id="side-nav" class="ui-resizable side-nav-resizable"> <div id="nav-tree"> <div id="nav-tree-contents"> <div id="nav-sync" class="sync"></div> </div> </div> <div id="splitbar" style="-moz-user-select:none;" class="ui-resizable-handle"> </div> </div> <script type="text/javascript"> $(document).ready(function(){initNavTree('file__meta__source_8h_source.html','');}); </script> <div id="doc-content"> <div class="header"> <div class="headertitle"> <div class="title">file_meta_source.h</div> </div> </div><!--header--> <div class="contents"> <a href="file__meta__source_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 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_BLOCKS_FILE_META_SOURCE_H</span></div> <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="preprocessor"></span><span class="preprocessor">#define INCLUDED_BLOCKS_FILE_META_SOURCE_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="gr-blocks_2include_2blocks_2api_8h.html">blocks/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="gr__sync__block_8h.html">gr_sync_block.h</a>></span></div> <div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div> <div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="keyword">namespace </span>gr {</div> <div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  <span class="keyword">namespace </span>blocks {</div> <div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment"></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> <span class="comment"> * \brief Reads stream from file with meta-data headers. Headers</span></div> <div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment"> * are parsed into tags.</span></div> <div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment"> * \ingroup source_blk</span></div> <div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="comment"> *</span></div> <div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment"> * The information in the metadata headers includes:</span></div> <div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"> *</span></div> <div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"> * rx_rate (double): sample rate of data.</span></div> <div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> * rx_time (uint64_t, double): time stamp of first sample in segment.</span></div> <div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"> * size (uint32_t): item size in bytes.</span></div> <div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> * type (gr_file_types as int32_t): data type.</span></div> <div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment"> * cplx (bool): Is data complex?</span></div> <div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment"> * strt (uint64_t): Starting byte of data in this segment.</span></div> <div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment"> * bytes (uint64_t): Size in bytes of data in this segment.</span></div> <div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"> *</span></div> <div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment"> * Any item inside of the extra header dictionary is ready out and</span></div> <div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment"> * made into a stream tag.</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"><a class="code" href="classgr_1_1blocks_1_1file__meta__source.html"> 50</a></span>  <span class="keyword">class </span><a class="code" href="gr-blocks_2include_2blocks_2api_8h.html#a0bb81384d93233b7a728722dbf3d8e0a">BLOCKS_API</a> <a class="code" href="classgr_1_1blocks_1_1file__meta__source.html" title="Reads stream from file with meta-data headers. Headers are parsed into tags.The information in the me...">file_meta_source</a> : <span class="keyword">virtual</span> <span class="keyword">public</span> <a class="code" href="classgr__sync__block.html" title="synchronous 1:1 input to output with historyOverride work to provide the signal processing implementa...">gr_sync_block</a></div> <div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  {</div> <div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="keyword">public</span>:</div> <div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="comment">// gr::blocks::file_meta_source::sptr</span></div> <div class="line"><a name="l00054"></a><span class="lineno"><a class="code" href="classgr_1_1blocks_1_1file__meta__source.html#a2be08712f26dd3f8b7da1b81203cf4c8"> 54</a></span>  <span class="keyword">typedef</span> <a class="code" href="classboost_1_1shared__ptr.html" title="shared_ptr documentation stub">boost::shared_ptr<file_meta_source></a> <a class="code" href="classgr_1_1blocks_1_1file__meta__source.html#a2be08712f26dd3f8b7da1b81203cf4c8">sptr</a>;</div> <div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment"></span></div> <div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment"> /*!</span></div> <div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment"> * \brief Create a meta-data file source.</span></div> <div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment"> *</span></div> <div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment"> * \param filename (string): Name of file to write data to.</span></div> <div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="comment"> * \param repeat (bool): Repeats file when EOF is found.</span></div> <div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment"> * \param detached_header (bool): Set to true if header</span></div> <div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment"> * info is stored in a separate file (usually named filename.hdr)</span></div> <div class="line"><a name="l00063"></a><span class="lineno"> 63</span> <span class="comment"> * \param hdr_filename (string): Name of detached header file if used.</span></div> <div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="comment"> * Defaults to 'filename.hdr' if detached_header is true but this</span></div> <div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="comment"> * field is an empty string.</span></div> <div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="comment"> */</span></div> <div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  <span class="keyword">static</span> <a class="code" href="classboost_1_1shared__ptr.html" title="shared_ptr documentation stub">sptr</a> make(<span class="keyword">const</span> std::string &filename,</div> <div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  <span class="keywordtype">bool</span> <a class="code" href="classgr_1_1blocks_1_1repeat.html" title="repeat each input 'interp' times">repeat</a>=<span class="keyword">false</span>,</div> <div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordtype">bool</span> detached_header=<span class="keyword">false</span>,</div> <div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="keyword">const</span> std::string &hdr_filename=<span class="stringliteral">""</span>);</div> <div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div> <div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  <span class="keyword">virtual</span> <span class="keywordtype">bool</span> open(<span class="keyword">const</span> std::string &filename,</div> <div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keyword">const</span> std::string &hdr_filename=<span class="stringliteral">""</span>) = 0;</div> <div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> close() = 0;</div> <div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  <span class="keyword">virtual</span> <span class="keywordtype">void</span> do_update() = 0;</div> <div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  };</div> <div class="line"><a name="l00077"></a><span class="lineno"> 77</span> </div> <div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  } <span class="comment">/* namespace blocks */</span></div> <div class="line"><a name="l00079"></a><span class="lineno"> 79</span> } <span class="comment">/* namespace gr */</span></div> <div class="line"><a name="l00080"></a><span class="lineno"> 80</span> </div> <div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="preprocessor">#endif </span><span class="comment">/* INCLUDED_BLOCKS_FILE_META_SOURCE_H */</span><span class="preprocessor"></span></div> </div><!-- fragment --></div><!-- contents --> </div><!-- doc-content --> <!-- start footer part --> <div id="nav-path" class="navpath"><!-- id is needed for treeview function! --> <ul> <li class="navelem"><a class="el" href="dir_163b61ceea2e02982ffc042218391854.html">gr-blocks</a></li><li class="navelem"><a class="el" href="dir_9478a5f63f06b684a30452b461bb1a57.html">include</a></li><li class="navelem"><a class="el" href="dir_40e015244c471c30c47ef5361129cd6c.html">blocks</a></li><li class="navelem"><a class="el" href="file__meta__source_8h.html">file_meta_source.h</a></li> <li class="footer">Generated on Fri Apr 19 2013 16:20:33 for GNU Radio 3.6.4.1 C++ API by <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.3 </li> </ul> </div> </body> </html>