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<a name="gst-plugins-base-plugins-alsasrc"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="gst-plugins-base-plugins-alsasrc.top_of_page"></a>alsasrc</span></h2>
<p>alsasrc</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-alsasrc.properties"></a><h2>Properties</h2>
<div class="informaltable"><table class="informaltable" border="0">
<colgroup>
<col width="150px" class="properties_type">
<col width="300px" class="properties_name">
<col width="200px" class="properties_flags">
</colgroup>
<tbody>
<tr>
<td class="property_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</td>
<td class="property_name"><a class="link" href="gst-plugins-base-plugins-alsasrc.html#GstAlsaSrc--card-name" title="The “card-name” property">card-name</a></td>
<td class="property_flags">Read</td>
</tr>
<tr>
<td class="property_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</td>
<td class="property_name"><a class="link" href="gst-plugins-base-plugins-alsasrc.html#GstAlsaSrc--device" title="The “device” property">device</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type">
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</td>
<td class="property_name"><a class="link" href="gst-plugins-base-plugins-alsasrc.html#GstAlsaSrc--device-name" title="The “device-name” property">device-name</a></td>
<td class="property_flags">Read</td>
</tr>
</tbody>
</table></div>
</div>
<a name="GstAlsaSrc"></a><div class="refsect1">
<a name="gst-plugins-base-plugins-alsasrc.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody><tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="gst-plugins-base-plugins-alsasrc.html#GstAlsaSrc-struct" title="struct GstAlsaSrc">GstAlsaSrc</a></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-alsasrc.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen"> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject-struct">GObject</a>
<span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
<span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstObject.html#GstObject-struct">GstObject</a>
<span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html#GstElement-struct">GstElement</a>
<span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-libs-1.0/GstBaseSrc.html#GstBaseSrc-struct">GstBaseSrc</a>
<span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-libs-1.0/GstPushSrc.html#GstPushSrc-struct">GstPushSrc</a>
<span class="lineart">╰──</span> <a href="../html/gst-plugins-base-libs-gstaudiobasesrc.html#GstAudioBaseSrc-struct">GstAudioBaseSrc</a>
<span class="lineart">╰──</span> <a href="../html/gst-plugins-base-libs-gstaudiosrc.html#GstAudioSrc-struct">GstAudioSrc</a>
<span class="lineart">╰──</span> GstAlsaSrc
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-alsasrc.description"></a><h2>Description</h2>
<p>This element reads data from an audio card using the ALSA API.</p>
<div class="refsect2">
<a name="id-1.2.6.7.3"></a><h3>Example pipelines</h3>
<div class="informalexample">
<table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td class="listing_lines" align="right"><pre>1</pre></td>
<td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> <span class="gtkdoc opt">-</span>v alsasrc <span class="gtkdoc opt">!</span> queue <span class="gtkdoc opt">!</span> audioconvert <span class="gtkdoc opt">!</span> vorbisenc <span class="gtkdoc opt">!</span> oggmux <span class="gtkdoc opt">!</span> filesink location<span class="gtkdoc opt">=</span>alsasrc<span class="gtkdoc opt">.</span>ogg</pre></td>
</tr>
</tbody>
</table>
</div>
Record from a sound card using ALSA and encode to Ogg/Vorbis.
</div>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<div class="refsect2">
<a name="id-1.2.6.7.4.1"></a><h3>Element Information</h3>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">plugin</span></p></td>
<td>
<a class="link" href="gst-plugins-base-plugins-plugin-alsa.html#plugin-alsa">alsa</a>
</td>
</tr>
<tr>
<td><p><span class="term">author</span></p></td>
<td>Wim Taymans <wim@fluendo.com></td>
</tr>
<tr>
<td><p><span class="term">class</span></p></td>
<td>Source/Audio</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="id-1.2.6.7.4.2"></a><h3>Element Pads</h3>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">name</span></p></td>
<td>src</td>
</tr>
<tr>
<td><p><span class="term">direction</span></p></td>
<td>source</td>
</tr>
<tr>
<td><p><span class="term">presence</span></p></td>
<td>always</td>
</tr>
<tr>
<td><p><span class="term">details</span></p></td>
<td>audio/x-raw, format=(string){ S8, U8, S16LE, S16BE, U16LE, U16BE, S24_32LE, S24_32BE, U24_32LE, U24_32BE, S32LE, S32BE, U32LE, U32BE, S24LE, S24BE, U24LE, U24BE, S20LE, S20BE, U20LE, U20BE, S18LE, S18BE, U18LE, U18BE, F32LE, F32BE, F64LE, F64BE }, layout=(string)interleaved, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ]</td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-alsasrc.functions_details"></a><h2>Functions</h2>
<p></p>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-alsasrc.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GstAlsaSrc-struct"></a><h3>struct GstAlsaSrc</h3>
<pre class="programlisting">struct GstAlsaSrc;</pre>
<p>Opaque data structure</p>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-alsasrc.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GstAlsaSrc--card-name"></a><h3>The <code class="literal">“card-name”</code> property</h3>
<pre class="programlisting"> “card-name” <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</pre>
<p>Human-readable name of the sound card.</p>
<p>Flags: Read</p>
<p>Default value: ""</p>
</div>
<hr>
<div class="refsect2">
<a name="GstAlsaSrc--device"></a><h3>The <code class="literal">“device”</code> property</h3>
<pre class="programlisting"> “device” <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</pre>
<p>ALSA device, as defined in an asound configuration file.</p>
<p>Flags: Read / Write</p>
<p>Default value: "default"</p>
</div>
<hr>
<div class="refsect2">
<a name="GstAlsaSrc--device-name"></a><h3>The <code class="literal">“device-name”</code> property</h3>
<pre class="programlisting"> “device-name” <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</pre>
<p>Human-readable name of the sound device.</p>
<p>Flags: Read</p>
<p>Default value: ""</p>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-alsasrc.see-also"></a><h2>See Also</h2>
<p>alsasink</p>
</div>
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