<!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 3.2.2 C++ API: gr_stream_mux.h Source File</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <link href="doxygen.css" rel="stylesheet" type="text/css"/> </head> <body> <!-- Generated by Doxygen 1.6.2 --> <h1>gr_stream_mux.h</h1><a href="gr__stream__mux_8h.html">Go to the documentation of this file.</a><div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="comment">/* -*- c++ -*- */</span> <a name="l00002"></a>00002 <span class="comment">/*</span> <a name="l00003"></a>00003 <span class="comment"> * Copyright 2006 Free Software Foundation, Inc.</span> <a name="l00004"></a>00004 <span class="comment"> * </span> <a name="l00005"></a>00005 <span class="comment"> * This file is part of GNU Radio</span> <a name="l00006"></a>00006 <span class="comment"> * </span> <a name="l00007"></a>00007 <span class="comment"> * GNU Radio is free software; you can redistribute it and/or modify</span> <a name="l00008"></a>00008 <span class="comment"> * it under the terms of the GNU General Public License as published by</span> <a name="l00009"></a>00009 <span class="comment"> * the Free Software Foundation; either version 3, or (at your option)</span> <a name="l00010"></a>00010 <span class="comment"> * any later version.</span> <a name="l00011"></a>00011 <span class="comment"> * </span> <a name="l00012"></a>00012 <span class="comment"> * GNU Radio is distributed in the hope that it will be useful,</span> <a name="l00013"></a>00013 <span class="comment"> * but WITHOUT ANY WARRANTY; without even the implied warranty of</span> <a name="l00014"></a>00014 <span class="comment"> * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span> <a name="l00015"></a>00015 <span class="comment"> * GNU General Public License for more details.</span> <a name="l00016"></a>00016 <span class="comment"> * </span> <a name="l00017"></a>00017 <span class="comment"> * You should have received a copy of the GNU General Public License</span> <a name="l00018"></a>00018 <span class="comment"> * along with GNU Radio; see the file COPYING. If not, write to</span> <a name="l00019"></a>00019 <span class="comment"> * the Free Software Foundation, Inc., 51 Franklin Street,</span> <a name="l00020"></a>00020 <span class="comment"> * Boston, MA 02110-1301, USA.</span> <a name="l00021"></a>00021 <span class="comment"> */</span> <a name="l00022"></a>00022 <a name="l00023"></a>00023 <span class="preprocessor">#ifndef INCLUDED_GR_STREAM_MUX_H</span> <a name="l00024"></a>00024 <span class="preprocessor"></span><span class="preprocessor">#define INCLUDED_GR_STREAM_MUX_H</span> <a name="l00025"></a>00025 <span class="preprocessor"></span> <a name="l00026"></a>00026 <a name="l00027"></a>00027 <span class="preprocessor">#include <<a class="code" href="gr__block_8h.html">gr_block.h</a>></span> <a name="l00028"></a>00028 <span class="preprocessor">#include <vector></span> <a name="l00029"></a>00029 <span class="comment"></span> <a name="l00030"></a>00030 <span class="comment">/*!</span> <a name="l00031"></a>00031 <span class="comment"> * \brief Creates a stream muxing block to multiplex many streams into</span> <a name="l00032"></a>00032 <span class="comment"> * one with a specified format.</span> <a name="l00033"></a>00033 <span class="comment"> * \ingroup converter_blk</span> <a name="l00034"></a>00034 <span class="comment"> *</span> <a name="l00035"></a>00035 <span class="comment"> * \param itemsize the item size of the stream</span> <a name="l00036"></a>00036 <span class="comment"> * \param length a vector (list/tuple) specifying the number of</span> <a name="l00037"></a>00037 <span class="comment"> * items from each stream the mux together.</span> <a name="l00038"></a>00038 <span class="comment"> * Warning: this requires that at least as many items</span> <a name="l00039"></a>00039 <span class="comment"> * per stream are available or the system will wait</span> <a name="l00040"></a>00040 <span class="comment"> * indefinitely for the items.</span> <a name="l00041"></a>00041 <span class="comment"> *</span> <a name="l00042"></a>00042 <span class="comment"> */</span> <a name="l00043"></a>00043 <span class="keyword">class </span><a class="code" href="classgr__stream__mux.html" title="Stream muxing block to multiplex many streams into one with a specified format.">gr_stream_mux</a>; <a name="l00044"></a>00044 <span class="keyword">typedef</span> <a class="code" href="classboost_1_1shared__ptr.html" title="shared_ptr documentation stub">boost::shared_ptr<gr_stream_mux></a> <a class="code" href="classboost_1_1shared__ptr.html" title="shared_ptr documentation stub">gr_stream_mux_sptr</a>; <a name="l00045"></a>00045 <a name="l00046"></a>00046 <a name="l00047"></a>00047 <a name="l00048"></a>00048 <a class="code" href="classboost_1_1shared__ptr.html" title="shared_ptr documentation stub">gr_stream_mux_sptr</a> <a name="l00049"></a>00049 <a class="code" href="gr__stream__mux_8h.html#a6f3ee7564cc6b2ec763cc9ffffa839a8">gr_make_stream_mux</a> (<span class="keywordtype">size_t</span> itemsize, <span class="keyword">const</span> <a class="code" href="classstd_1_1vector.html">std::vector<int></a> &lengths); <a name="l00050"></a>00050 <a name="l00051"></a>00051 <span class="comment"></span> <a name="l00052"></a>00052 <span class="comment">/*!</span> <a name="l00053"></a>00053 <span class="comment"> * \brief Stream muxing block to multiplex many streams into</span> <a name="l00054"></a>00054 <span class="comment"> * one with a specified format.</span> <a name="l00055"></a>00055 <span class="comment"> * </span> <a name="l00056"></a>00056 <span class="comment"> * Muxes N streams together producing an output stream that</span> <a name="l00057"></a>00057 <span class="comment"> * contains N0 items from the first stream, N1 items from the second,</span> <a name="l00058"></a>00058 <span class="comment"> * etc. and repeats:</span> <a name="l00059"></a>00059 <span class="comment"> *</span> <a name="l00060"></a>00060 <span class="comment"> * [N0, N1, N2, ..., Nm, N0, N1, ...]</span> <a name="l00061"></a>00061 <span class="comment"> */</span> <a name="l00062"></a>00062 <a name="l00063"></a><a class="code" href="classgr__stream__mux.html">00063</a> <span class="keyword">class </span><a class="code" href="classgr__stream__mux.html" title="Stream muxing block to multiplex many streams into one with a specified format.">gr_stream_mux</a> : <span class="keyword">public</span> <a class="code" href="classgr__block.html" title="The abstract base class for all &#39;terminal&#39; processing blocks.A signal processing...">gr_block</a> <a name="l00064"></a>00064 { <a name="l00065"></a>00065 <span class="keyword">friend</span> <a class="code" href="classboost_1_1shared__ptr.html" title="shared_ptr documentation stub">gr_stream_mux_sptr</a> <a name="l00066"></a>00066 <a class="code" href="classgr__stream__mux.html#a6f3ee7564cc6b2ec763cc9ffffa839a8">gr_make_stream_mux</a> (<span class="keywordtype">size_t</span> itemsize, <span class="keyword">const</span> <a class="code" href="classstd_1_1vector.html">std::vector<int></a> &lengths); <a name="l00067"></a>00067 <a name="l00068"></a>00068 <span class="keyword">protected</span>: <a name="l00069"></a>00069 <a class="code" href="classgr__stream__mux.html#aa7c183af68557c9fcadd42a4fc0fac9f">gr_stream_mux</a> (<span class="keywordtype">size_t</span> itemsize, <span class="keyword">const</span> <a class="code" href="classstd_1_1vector.html">std::vector<int></a> &lengths); <a name="l00070"></a>00070 <a name="l00071"></a>00071 <span class="keyword">private</span>: <a name="l00072"></a>00072 <span class="keywordtype">size_t</span> d_itemsize; <a name="l00073"></a>00073 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> d_stream; <span class="comment">// index of currently selected stream</span> <a name="l00074"></a>00074 <span class="keywordtype">int</span> d_residual; <span class="comment">// number if items left to put into current stream</span> <a name="l00075"></a>00075 <a class="code" href="classstd_1_1vector.html">gr_vector_int</a> d_lengths; <span class="comment">// number if items to pack per stream</span> <a name="l00076"></a>00076 <a name="l00077"></a>00077 <span class="keywordtype">void</span> increment_stream(); <a name="l00078"></a>00078 <a name="l00079"></a>00079 <span class="keyword">public</span>: <a name="l00080"></a>00080 <a class="code" href="classgr__stream__mux.html#aba16e9bd3c58f75ec0e0ac3954ad6adc">~gr_stream_mux</a>(<span class="keywordtype">void</span>); <a name="l00081"></a>00081 <a name="l00082"></a>00082 <span class="keywordtype">void</span> <a class="code" href="classgr__stream__mux.html#aae4b1c50e42e75a5c5a9d6f9e185ff84" title="Estimate input requirements given output request.">forecast</a> (<span class="keywordtype">int</span> noutput_items, <a class="code" href="classstd_1_1vector.html">gr_vector_int</a> &ninput_items_required); <a name="l00083"></a>00083 <a name="l00084"></a>00084 <span class="keywordtype">int</span> <a class="code" href="classgr__stream__mux.html#a9505b30dc6957ad60dc27711573e6835" title="compute output items from input items">general_work</a>(<span class="keywordtype">int</span> noutput_items, <a name="l00085"></a>00085 <a class="code" href="classstd_1_1vector.html">gr_vector_int</a> &ninput_items, <a name="l00086"></a>00086 <a class="code" href="classstd_1_1vector.html">gr_vector_const_void_star</a> &input_items, <a name="l00087"></a>00087 <a class="code" href="classstd_1_1vector.html">gr_vector_void_star</a> &output_items); <a name="l00088"></a>00088 <a name="l00089"></a>00089 }; <a name="l00090"></a>00090 <a name="l00091"></a>00091 <a name="l00092"></a>00092 <span class="preprocessor">#endif</span> </pre></div></div> <hr size="1"/><address style="text-align: right;"><small>Generated by <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.6.2 </small></address> </body> </html>