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<title>GNU Radio 3.3.0 C++ API: audio_alsa_source.h File Reference</title>
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<h1>audio_alsa_source.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/>
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Include dependency graph for audio_alsa_source.h:</div>
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<div class="center"><img src="audio__alsa__source_8h__incl.png" border="0" usemap="#audio__alsa__source_8h_map" alt=""/></div>
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<p><a href="audio__alsa__source_8h_source.html">Go to the source code of this file.</a></p>
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<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__source.html">audio_alsa_source</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">audio source using ALSA <a href="classaudio__alsa__source.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__source_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__source_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_source_sptr</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="audio__alsa__source_8h.html#a66b7a1081bbdc9cf8f5f1a74bab68871">audio_alsa_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=true)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Make an ALSA audio source. <a href="#a66b7a1081bbdc9cf8f5f1a74bab68871"></a><br/></td></tr>
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<hr/><h2>Define Documentation</h2>
<a class="anchor" id="a705350c14c1f28bb8d6d57dafbf9ccff"></a><!-- doxytag: member="audio_alsa_source.h::ALSA_PCM_NEW_HW_PARAMS_API" ref="a705350c14c1f28bb8d6d57dafbf9ccff" args="" -->
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<td class="memname">#define ALSA_PCM_NEW_HW_PARAMS_API</td>
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<a class="anchor" id="a5b61c3b8eee0c6801209e39a760b928a"></a><!-- doxytag: member="audio_alsa_source.h::ALSA_PCM_NEW_SW_PARAMS_API" ref="a5b61c3b8eee0c6801209e39a760b928a" args="" -->
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<td class="memname">#define ALSA_PCM_NEW_SW_PARAMS_API</td>
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<hr/><h2>Function Documentation</h2>
<a class="anchor" id="a66b7a1081bbdc9cf8f5f1a74bab68871"></a><!-- doxytag: member="audio_alsa_source.h::audio_alsa_make_source" ref="a66b7a1081bbdc9cf8f5f1a74bab68871" args="(int sampling_rate, const std::string device_name="", bool ok_to_block=true)" -->
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<td class="memname"><a class="el" href="classboost_1_1shared__ptr.html">audio_alsa_source_sptr</a> audio_alsa_make_source </td>
<td>(</td>
<td class="paramtype">int </td>
<td class="paramname"> <em>sampling_rate</em>, </td>
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<td class="paramtype">const std::string </td>
<td class="paramname"> <em>device_name</em> = <code>""</code>, </td>
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<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>
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<td>)</td>
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<p>Make an ALSA audio source. </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 </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>
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