<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> <title>alsasrc</title> <meta name="generator" content="DocBook XSL Stylesheets V1.72.0"> <link rel="start" href="index.html" title="GStreamer Base Plugins 0.10 Plugins Reference Manual"> <link rel="up" href="ch01.html" title="gst-plugins-base Elements"> <link rel="prev" href="gst-plugins-base-plugins-alsasink.html" title="alsasink"> <link rel="next" href="gst-plugins-base-plugins-audioconvert.html" title="audioconvert"> <meta name="generator" content="GTK-Doc V1.8 (XML mode)"> <link rel="stylesheet" href="style.css" type="text/css"> <link rel="chapter" href="ch01.html" title="gst-plugins-base Elements"> <link rel="chapter" href="ch02.html" title="gst-plugins-base Plugins"> </head> <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> <table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2"> <tr valign="middle"> <td><a accesskey="p" href="gst-plugins-base-plugins-alsasink.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td> <td><a accesskey="u" href="ch01.html"><img src="up.png" width="24" height="24" border="0" alt="Up"></a></td> <td><a accesskey="h" href="index.html"><img src="home.png" width="24" height="24" border="0" alt="Home"></a></td> <th width="100%" align="center">GStreamer Base Plugins 0.10 Plugins Reference Manual</th> <td><a accesskey="n" href="gst-plugins-base-plugins-audioconvert.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td> </tr> <tr><td colspan="5" class="shortcuts"><nobr><a href="#id2579419" class="shortcut">Top</a>  |  <a href="#id2589141" class="shortcut">Description</a>  |  <a href="#id2563072" class="shortcut">Object Hierarchy</a>  |  <a href="#id2511798" class="shortcut">Implemented Interfaces</a>  |  <a href="#id2571146" class="shortcut">Properties</a></nobr></td></tr> </table> <div class="refentry" lang="en"> <a name="gst-plugins-base-plugins-alsasrc"></a><div class="titlepage"></div> <div class="refnamediv"><table width="100%"><tr> <td valign="top"> <h2> <a name="id2579419"></a><span class="refentrytitle">alsasrc</span> </h2> <p>alsasrc — capture audio from an alsa device</p> </td> <td valign="top" align="right"></td> </tr></table></div> <div class="refsynopsisdiv"> <h2>Synopsis</h2> <a name="GstAlsaSrc"></a><pre class="synopsis"> <a href="gst-plugins-base-plugins-alsasrc.html#GstAlsaSrc-struct">GstAlsaSrc</a>; </pre> </div> <div class="refsect1" lang="en"> <a name="id2563072"></a><h2>Object Hierarchy</h2> <pre class="synopsis"> GObject +----GstObject +----GstElement +----GstBaseSrc +----GstPushSrc +----<a href="/usr/share/gtk-doc/html/gst-plugins-base-libs/gst-plugins-base-libs-gstbaseaudiosrc.html#GstBaseAudioSrc" >GstBaseAudioSrc</a> +----<a href="/usr/share/gtk-doc/html/gst-plugins-base-libs/gst-plugins-base-libs-gstaudiosrc.html#GstAudioSrc" >GstAudioSrc</a> +----GstAlsaSrc </pre> </div> <div class="refsect1" lang="en"> <a name="id2511798"></a><h2>Implemented Interfaces</h2> <p> GstAlsaSrc implements GstImplementsInterface, <a href="/usr/share/gtk-doc/html/gst-plugins-base-libs/gst-plugins-base-libs-gstmixer.html#GstMixer" >GstMixer</a> and <a href="/usr/share/gtk-doc/html/gst-plugins-base-libs/gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe" >GstPropertyProbe</a>.</p> </div> <div class="refsect1" lang="en"> <a name="id2571146"></a><h2>Properties</h2> <pre class="synopsis"> "<a href="gst-plugins-base-plugins-alsasrc.html#GstAlsaSrc--device">device</a>" gchar* : Read / Write "<a href="gst-plugins-base-plugins-alsasrc.html#GstAlsaSrc--device-name">device-name</a>" gchar* : Read </pre> </div> <div class="refsect1" lang="en"> <a name="id2589141"></a><h2>Description</h2> <p> </p> <div class="refsect2" lang="en"> <a name="id2589154"></a><p> This element reads data from an audio card using the ALSA API. </p> <h3>Example pipelines</h3> <p> Record from a sound card using ALSA and encode to Ogg/Vorbis. </p> <pre class="programlisting"> gst-launch -v alsasrc ! audioconvert ! vorbisenc ! oggmux ! filesink location=alsasrc.ogg </pre> </div> <p> </p> <p> Last reviewed on 2006-03-01 (0.10.4)</p> <div class="refsect2" lang="en"> <a name="id2589185"></a><h3>Element Information</h3> <div class="variablelist"><table border="0"> <col align="left" valign="top"> <tbody> <tr> <td><span class="term">plugin</span></td> <td> <a href="gst-plugins-base-plugins-plugin-alsa.html#plugin-alsa">alsa</a> </td> </tr> <tr> <td><span class="term">author</span></td> <td>Wim Taymans <wim@fluendo.com></td> </tr> <tr> <td><span class="term">class</span></td> <td>Source/Audio</td> </tr> </tbody> </table></div> <h3>Element Pads</h3> <div class="variablelist"><table border="0"> <col align="left" valign="top"> <tbody> <tr> <td><span class="term">name</span></td> <td>src</td> </tr> <tr> <td><span class="term">direction</span></td> <td>source</td> </tr> <tr> <td><span class="term">presence</span></td> <td>always</td> </tr> <tr> <td><span class="term">details</span></td> <td>audio/x-raw-int, endianness=(int){ 1234, 4321 }, signed=(boolean){ true, false }, width=(int)32, depth=(int)32, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ]; audio/x-raw-int, endianness=(int){ 1234, 4321 }, signed=(boolean){ true, false }, width=(int)32, depth=(int)24, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ]; audio/x-raw-int, endianness=(int){ 1234, 4321 }, signed=(boolean){ true, false }, width=(int)24, depth=(int)24, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ]; audio/x-raw-int, endianness=(int){ 1234, 4321 }, signed=(boolean){ true, false }, width=(int)16, depth=(int)16, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ]; audio/x-raw-int, signed=(boolean){ true, false }, width=(int)8, depth=(int)8, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ]</td> </tr> </tbody> </table></div> </div> <p> </p> </div> <div class="refsect1" lang="en"> <a name="id2579513"></a><h2>Details</h2> <div class="refsect2" lang="en"> <a name="id2579524"></a><h3> <a name="GstAlsaSrc-struct"></a>GstAlsaSrc</h3> <a class="indexterm" name="id2579536"></a><pre class="programlisting">typedef struct _GstAlsaSrc GstAlsaSrc;</pre> <p> Opaque data structure</p> <p> </p> </div> </div> <div class="refsect1" lang="en"> <a name="id2579556"></a><h2>Property Details</h2> <div class="refsect2" lang="en"> <a name="id2579567"></a><h3> <a name="GstAlsaSrc--device"></a>The "<code class="literal">device</code>" property</h3> <a class="indexterm" name="id2579582"></a><pre class="programlisting"> "device" gchar* : Read / Write</pre> <p>ALSA device, as defined in an asound configuration file.</p> <p>Default value: "default"</p> </div> <hr> <div class="refsect2" lang="en"> <a name="id2587197"></a><h3> <a name="GstAlsaSrc--device-name"></a>The "<code class="literal">device-name</code>" property</h3> <a class="indexterm" name="id2587211"></a><pre class="programlisting"> "device-name" gchar* : Read</pre> <p>Human-readable name of the sound device.</p> <p>Default value: ""</p> </div> </div> <div class="refsect1" lang="en"> <a name="id2587236"></a><h2>See Also</h2> alsasink, alsamixer </div> </div> </body> </html>