<!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: audio_jack_source Class Reference</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<link href="navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="navtree.js"></script>
<script type="text/javascript" src="resize.js"></script>
<script type="text/javascript">
$(document).ready(initResizable);
</script>
<link href="doxygen.css" rel="stylesheet" type="text/css"/>
</head>
<body>
<!-- Generated by Doxygen 1.7.3 -->
<div id="top">
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr style="height: 56px;">
<td style="padding-left: 0.5em;">
<div id="projectname">GNU Radio 3.2.2 C++ API</div>
</td>
</tr>
</tbody>
</table>
</div>
</div>
<div id="side-nav" class="ui-resizable side-nav-resizable">
<div id="nav-tree">
<div id="nav-tree-contents">
</div>
</div>
<div id="splitbar" style="-moz-user-select:none;"
class="ui-resizable-handle">
</div>
</div>
<script type="text/javascript">
initNavTree('classaudio__jack__source.html','');
</script>
<div id="doc-content">
<div class="header">
<div class="summary">
<a href="#pub-methods">Public Member Functions</a> |
<a href="#pro-methods">Protected Member Functions</a> |
<a href="#friends">Friends</a> </div>
<div class="headertitle">
<h1>audio_jack_source Class Reference</h1> </div>
</div>
<div class="contents">
<!-- doxytag: class="audio_jack_source" --><!-- doxytag: inherits="gr_sync_block" -->
<p>audio source using JACK
<a href="#_details">More...</a></p>
<p><code>#include <<a class="el" href="audio__jack__source_8h_source.html">audio_jack_source.h</a>></code></p>
<div class="dynheader">
Inheritance diagram for audio_jack_source:</div>
<div class="dyncontent">
<div class="center"><img src="classaudio__jack__source__inherit__graph.png" border="0" usemap="#audio__jack__source_inherit__map" alt="Inheritance graph"/></div>
<map name="audio__jack__source_inherit__map" id="audio__jack__source_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 implementa..." alt="" coords="17,160,124,189"/><area shape="rect" id="node4" href="classgr__block.html" title="The abstract base class for all 'terminal' processing blocks.A signal processing flow is cons..." alt="" coords="36,83,105,112"/><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 abstraction of an ..." alt="" coords="16,5,125,35"/></map>
<center><span class="legend">[<a target="top" href="graph_legend.html">legend</a>]</span></center></div>
<p><a href="classaudio__jack__source-members.html">List of all members.</a></p>
<table class="memberdecls">
<tr><td colspan="2"><h2><a name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classaudio__jack__source.html#a9122f8b8701ad97ef30406c69cda4589">~audio_jack_source</a> ()</td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="gc__types_8h.html#a0f2b5d454b7e4dda3861032cfce91085">bool</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classaudio__jack__source.html#a04be79beefbebc59a37940ed5b20dd17">check_topology</a> (int ninputs, int noutputs)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Confirm that ninputs and noutputs is an acceptable combination. <a href="#a04be79beefbebc59a37940ed5b20dd17"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classaudio__jack__source.html#a23ec23c1db7b16f04ac0ee1626c283f6">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="#a23ec23c1db7b16f04ac0ee1626c283f6"></a><br/></td></tr>
<tr><td colspan="2"><h2><a name="pro-methods"></a>
Protected Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classaudio__jack__source.html#a86156240c4a59adc7c2f78fde79f4c78">audio_jack_source</a> (int sampling_rate, const std::string device_name, <a class="el" href="gc__types_8h.html#a0f2b5d454b7e4dda3861032cfce91085">bool</a> ok_to_block)</td></tr>
<tr><td colspan="2"><h2><a name="friends"></a>
Friends</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classboost_1_1shared__ptr.html">audio_jack_source_sptr</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classaudio__jack__source.html#a18d0ca1daf467ed6c6baf11078ef5240">audio_jack_make_source</a> (int sampling_rate, const std::string device_name, <a class="el" href="gc__types_8h.html#a0f2b5d454b7e4dda3861032cfce91085">bool</a> ok_to_block)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">make a JACK audio source. <a href="#a18d0ca1daf467ed6c6baf11078ef5240"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top">int </td><td class="memItemRight" valign="bottom"><a class="el" href="classaudio__jack__source.html#a3fb10188231891b48c5e4c7c759b7383">jack_source_process</a> (jack_nframes_t nframes, void *arg)</td></tr>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>audio source using JACK </p>
<p>The source has one input stream of floats.</p>
<p>Output samples will be in the range [-1,1]. </p>
</div><hr/><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" id="a86156240c4a59adc7c2f78fde79f4c78"></a><!-- doxytag: member="audio_jack_source::audio_jack_source" ref="a86156240c4a59adc7c2f78fde79f4c78" args="(int sampling_rate, const std::string device_name, bool ok_to_block)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">audio_jack_source::audio_jack_source </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>sampling_rate</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const std::string </td>
<td class="paramname"><em>device_name</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="gc__types_8h.html#a0f2b5d454b7e4dda3861032cfce91085">bool</a> </td>
<td class="paramname"><em>ok_to_block</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td><code> [protected]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
</div>
</div>
<a class="anchor" id="a9122f8b8701ad97ef30406c69cda4589"></a><!-- doxytag: member="audio_jack_source::~audio_jack_source" ref="a9122f8b8701ad97ef30406c69cda4589" args="()" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">audio_jack_source::~audio_jack_source </td>
<td>(</td>
<td class="paramname"></td><td>)</td>
<td></td>
</tr>
</table>
</div>
<div class="memdoc">
</div>
</div>
<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="a04be79beefbebc59a37940ed5b20dd17"></a><!-- doxytag: member="audio_jack_source::check_topology" ref="a04be79beefbebc59a37940ed5b20dd17" args="(int ninputs, int noutputs)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="gc__types_8h.html#a0f2b5d454b7e4dda3861032cfce91085">bool</a> audio_jack_source::check_topology </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>ninputs</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>noutputs</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td><code> [virtual]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Confirm that ninputs and noutputs is an acceptable combination. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">ninputs</td><td>number of input streams connected </td></tr>
<tr><td class="paramname">noutputs</td><td>number of output streams connected</td></tr>
</table>
</dd>
</dl>
<dl class="return"><dt><b>Returns:</b></dt><dd>true if this is a valid configuration for this block.</dd></dl>
<p>This function is called by the runtime system whenever the topology changes. Most classes do not need to override this. This check is in addition to the constraints specified by the input and output gr_io_signatures. </p>
<p>Reimplemented from <a class="el" href="classgr__basic__block.html#a50a714df9c3ce8c03854a09ac84e589b">gr_basic_block</a>.</p>
</div>
</div>
<a class="anchor" id="a23ec23c1db7b16f04ac0ee1626c283f6"></a><!-- doxytag: member="audio_jack_source::work" ref="a23ec23c1db7b16f04ac0ee1626c283f6" 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 audio_jack_source::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>
</tr>
<tr>
<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="a18d0ca1daf467ed6c6baf11078ef5240"></a><!-- doxytag: member="audio_jack_source::audio_jack_make_source" ref="a18d0ca1daf467ed6c6baf11078ef5240" args="(int sampling_rate, const std::string device_name, bool ok_to_block)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="classboost_1_1shared__ptr.html">audio_jack_source_sptr</a> audio_jack_make_source </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"><em>sampling_rate</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const std::string </td>
<td class="paramname"><em>device_name</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="gc__types_8h.html#a0f2b5d454b7e4dda3861032cfce91085">bool</a> </td>
<td class="paramname"><em>ok_to_block</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td><code> [friend]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>make a JACK audio source. </p>
<dl><dt><b>Parameters:</b></dt><dd>
<table class="params">
<tr><td class="paramname">sampling_rate</td><td>sampling rate in Hz </td></tr>
<tr><td class="paramname">device_name</td><td>JACK device name, e.g., "gr_source" </td></tr>
<tr><td class="paramname">ok_to_block</td><td></td></tr>
</table>
</dd>
</dl>
</div>
</div>
<a class="anchor" id="a3fb10188231891b48c5e4c7c759b7383"></a><!-- doxytag: member="audio_jack_source::jack_source_process" ref="a3fb10188231891b48c5e4c7c759b7383" args="(jack_nframes_t nframes, void *arg)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">int jack_source_process </td>
<td>(</td>
<td class="paramtype">jack_nframes_t </td>
<td class="paramname"><em>nframes</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">void * </td>
<td class="paramname"><em>arg</em> </td>
</tr>
<tr>
<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="audio__jack__source_8h_source.html">audio_jack_source.h</a></li>
</ul>
</div>
</div>
<div id="nav-path" class="navpath">
<ul>
<li class="navelem"><a class="el" href="classaudio__jack__source.html">audio_jack_source</a> </li>
<li class="footer">Generated on Thu Feb 17 2011 for GNU Radio 3.2.2 C++ API by 
<a href="http://www.doxygen.org/index.html">
<img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.7.3 </li>
</ul>
</div>
</body>
</html>
distrib
>
Fedora
>
14
>
x86_64
>
media
>
updates
>
by-pkgid
>
6e7a2755bd78c9deedab199b86e675f3
>
files
>
151
