<!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_alsa_sink.h File Reference</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 --> <div class="contents"> <h1>audio_alsa_sink.h File Reference</h1><code>#include <<a class="el" href="gr__sync__block_8h_source.html">gr_sync_block.h</a>></code><br/> <code>#include <string></code><br/> <code>#include <alsa/asoundlib.h></code><br/> <code>#include <stdexcept></code><br/> <div class="dynheader"> Include dependency graph for audio_alsa_sink.h:</div> <div class="dynsection"> <div class="center"><img src="audio__alsa__sink_8h__incl.png" border="0" usemap="#audio__alsa__sink_8h_map" alt=""/></div> <map 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cellpadding="0" cellspacing="0"> <tr><td colspan="2"><h2>Classes</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top">class </td><td class="memItemRight" valign="bottom"><a class="el" href="classaudio__alsa__sink.html">audio_alsa_sink</a></td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">audio sink using ALSA <a href="classaudio__alsa__sink.html#_details">More...</a><br/></td></tr> <tr><td colspan="2"><h2>Defines</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="audio__alsa__sink_8h.html#a705350c14c1f28bb8d6d57dafbf9ccff">ALSA_PCM_NEW_HW_PARAMS_API</a></td></tr> <tr><td class="memItemLeft" align="right" valign="top">#define </td><td class="memItemRight" valign="bottom"><a class="el" href="audio__alsa__sink_8h.html#a5b61c3b8eee0c6801209e39a760b928a">ALSA_PCM_NEW_SW_PARAMS_API</a></td></tr> <tr><td colspan="2"><h2>Functions</h2></td></tr> <tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classboost_1_1shared__ptr.html">audio_alsa_sink_sptr</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="audio__alsa__sink_8h.html#ae0229548e70e56e4e741882d4d51efe6">audio_alsa_make_sink</a> (int sampling_rate, const std::string device_name="", <a class="el" href="gc__types_8h.html#a0f2b5d454b7e4dda3861032cfce91085">bool</a> ok_to_block=true)</td></tr> <tr><td class="mdescLeft"> </td><td class="mdescRight">make an alsa audio sink. <a href="#ae0229548e70e56e4e741882d4d51efe6"></a><br/></td></tr> </table> <hr/><h2>Define Documentation</h2> <a class="anchor" id="a705350c14c1f28bb8d6d57dafbf9ccff"></a><!-- doxytag: member="audio_alsa_sink.h::ALSA_PCM_NEW_HW_PARAMS_API" ref="a705350c14c1f28bb8d6d57dafbf9ccff" args="" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">#define ALSA_PCM_NEW_HW_PARAMS_API</td> </tr> </table> </div> <div class="memdoc"> </div> </div> <a class="anchor" id="a5b61c3b8eee0c6801209e39a760b928a"></a><!-- doxytag: member="audio_alsa_sink.h::ALSA_PCM_NEW_SW_PARAMS_API" ref="a5b61c3b8eee0c6801209e39a760b928a" args="" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname">#define ALSA_PCM_NEW_SW_PARAMS_API</td> </tr> </table> </div> <div class="memdoc"> </div> </div> <hr/><h2>Function Documentation</h2> <a class="anchor" id="ae0229548e70e56e4e741882d4d51efe6"></a><!-- doxytag: member="audio_alsa_sink.h::audio_alsa_make_sink" ref="ae0229548e70e56e4e741882d4d51efe6" args="(int sampling_rate, const std::string device_name="", bool ok_to_block=true)" --> <div class="memitem"> <div class="memproto"> <table class="memname"> <tr> <td class="memname"><a class="el" href="classboost_1_1shared__ptr.html">audio_alsa_sink_sptr</a> audio_alsa_make_sink </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> = <code>""</code>, </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> = <code>true</code></td><td> </td> </tr> <tr> <td></td> <td>)</td> <td></td><td></td><td></td> </tr> </table> </div> <div class="memdoc"> <p>make an alsa audio sink. </p> <dl><dt><b>Parameters:</b></dt><dd> <table border="0" cellspacing="2" cellpadding="0"> <tr><td valign="top"></td><td valign="top"><em>sampling_rate</em> </td><td>sampling rate in Hz </td></tr> <tr><td valign="top"></td><td valign="top"><em>device_name</em> </td><td>ALSA pcm device name, e.g., "hw:0,0" </td></tr> <tr><td valign="top"></td><td valign="top"><em>ok_to_block</em> </td><td>(currently ignored) </td></tr> </table> </dd> </dl> </div> </div> </div> <hr size="1"/><address style="text-align: 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