1<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 2<html> 3<head> 4<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 5<title>v4l2radio: GStreamer Good Plugins 1.0 Plugins Reference Manual</title> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="index.html" title="GStreamer Good Plugins 1.0 Plugins Reference Manual"> 8<link rel="up" href="ch01.html" title="gst-plugins-good Elements"> 9<link rel="prev" href="gst-plugins-good-plugins-udpsrc.html" title="udpsrc"> 10<link rel="next" href="gst-plugins-good-plugins-v4l2sink.html" title="v4l2sink"> 11<meta name="generator" content="GTK-Doc V1.28 (XML mode)"> 12<link rel="stylesheet" href="style.css" type="text/css"> 13</head> 14<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 15<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="5"><tr valign="middle"> 16<td width="100%" align="left" class="shortcuts"> 17<a href="#" class="shortcut">Top</a><span id="nav_description"> <span class="dim">|</span> 18 <a href="#gst-plugins-good-plugins-v4l2radio.description" class="shortcut">Description</a></span><span id="nav_hierarchy"> <span class="dim">|</span> 19 <a href="#gst-plugins-good-plugins-v4l2radio.object-hierarchy" class="shortcut">Object Hierarchy</a></span><span id="nav_interfaces"> <span class="dim">|</span> 20 <a href="#gst-plugins-good-plugins-v4l2radio.implemented-interfaces" class="shortcut">Implemented Interfaces</a></span><span id="nav_properties"> <span class="dim">|</span> 21 <a href="#gst-plugins-good-plugins-v4l2radio.properties" class="shortcut">Properties</a></span> 22</td> 23<td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td> 24<td><a accesskey="u" href="ch01.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td> 25<td><a accesskey="p" href="gst-plugins-good-plugins-udpsrc.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td> 26<td><a accesskey="n" href="gst-plugins-good-plugins-v4l2sink.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td> 27</tr></table> 28<div class="refentry"> 29<a name="gst-plugins-good-plugins-v4l2radio"></a><div class="titlepage"></div> 30<div class="refnamediv"><table width="100%"><tr> 31<td valign="top"> 32<h2><span class="refentrytitle"><a name="gst-plugins-good-plugins-v4l2radio.top_of_page"></a>v4l2radio</span></h2> 33<p>v4l2radio</p> 34</td> 35<td class="gallery_image" valign="top" align="right"></td> 36</tr></table></div> 37<div class="refsect1"> 38<a name="gst-plugins-good-plugins-v4l2radio.properties"></a><h2>Properties</h2> 39<div class="informaltable"><table class="informaltable" border="0"> 40<colgroup> 41<col width="150px" class="properties_type"> 42<col width="300px" class="properties_name"> 43<col width="200px" class="properties_flags"> 44</colgroup> 45<tbody> 46<tr> 47<td class="property_type"> 48<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</td> 49<td class="property_name"><a class="link" href="gst-plugins-good-plugins-v4l2radio.html#GstV4l2Radio--device" title="The “device” property">device</a></td> 50<td class="property_flags">Read / Write</td> 51</tr> 52<tr> 53<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td> 54<td class="property_name"><a class="link" href="gst-plugins-good-plugins-v4l2radio.html#GstV4l2Radio--frequency" title="The “frequency” property">frequency</a></td> 55<td class="property_flags">Read / Write</td> 56</tr> 57</tbody> 58</table></div> 59</div> 60<a name="GstV4l2Radio"></a><div class="refsect1"> 61<a name="gst-plugins-good-plugins-v4l2radio.other"></a><h2>Types and Values</h2> 62<div class="informaltable"><table class="informaltable" width="100%" border="0"> 63<colgroup> 64<col width="150px" class="name"> 65<col class="description"> 66</colgroup> 67<tbody><tr> 68<td class="datatype_keyword">struct</td> 69<td class="function_name"><a class="link" href="gst-plugins-good-plugins-v4l2radio.html#GstV4l2Radio-struct" title="struct GstV4l2Radio">GstV4l2Radio</a></td> 70</tr></tbody> 71</table></div> 72</div> 73<div class="refsect1"> 74<a name="gst-plugins-good-plugins-v4l2radio.object-hierarchy"></a><h2>Object Hierarchy</h2> 75<pre class="screen"> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject-struct">GObject</a> 76 <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a> 77 <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstObject.html#GstObject-struct">GstObject</a> 78 <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html#GstElement-struct">GstElement</a> 79 <span class="lineart">╰──</span> GstV4l2Radio 80</pre> 81</div> 82<div class="refsect1"> 83<a name="gst-plugins-good-plugins-v4l2radio.implemented-interfaces"></a><h2>Implemented Interfaces</h2> 84<p> 85GstV4l2Radio implements 86 <a href="/usr/share/gtk-doc/html/gstreamer-1.0/gstreamer-GstUriHandler.html#GstURIHandler-struct">GstURIHandler</a> and GstTuner.</p> 87</div> 88<div class="refsect1"> 89<a name="gst-plugins-good-plugins-v4l2radio.description"></a><h2>Description</h2> 90<p>v4l2radio can be used to control radio device 91and to tune it to different radiostations.</p> 92<div class="refsect2"> 93<a name="id-1.2.261.8.3"></a><h3>Example launch lines</h3> 94<div class="informalexample"> 95 <table class="listing_frame" border="0" cellpadding="0" cellspacing="0"> 96 <tbody> 97 <tr> 98 <td class="listing_lines" align="right"><pre>1 992</pre></td> 100 <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> v4l2radio device<span class="gtkdoc opt">=/</span>dev<span class="gtkdoc opt">/</span>radio0 frequency<span class="gtkdoc opt">=</span><span class="number">101200000</span> 101gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> alsasrc device<span class="gtkdoc opt">=</span>hw<span class="gtkdoc opt">:</span><span class="number">1</span> <span class="gtkdoc opt">!</span> audioconvert <span class="gtkdoc opt">!</span> audioresample <span class="gtkdoc opt">!</span> alsasink</pre></td> 102 </tr> 103 </tbody> 104 </table> 105</div> 106 107First pipeline tunes the radio device /dev/radio0 to station 101.2 MHz, 108second pipeline connects digital audio out (hw:1) to default sound card. 109</div> 110<div class="refsynopsisdiv"> 111<h2>Synopsis</h2> 112<div class="refsect2"> 113<a name="id-1.2.261.8.4.1"></a><h3>Element Information</h3> 114<div class="variablelist"><table border="0" class="variablelist"> 115<colgroup> 116<col align="left" valign="top"> 117<col> 118</colgroup> 119<tbody> 120<tr> 121<td><p><span class="term">plugin</span></p></td> 122<td> 123 <a class="link" href="gst-plugins-good-plugins-plugin-video4linux2.html#plugin-video4linux2">video4linux2</a> 124 </td> 125</tr> 126<tr> 127<td><p><span class="term">author</span></p></td> 128<td>Alexey Chernov <4ernov@gmail.com></td> 129</tr> 130<tr> 131<td><p><span class="term">class</span></p></td> 132<td>Tuner</td> 133</tr> 134</tbody> 135</table></div> 136</div> 137<hr> 138<div class="refsect2"> 139<a name="id-1.2.261.8.4.2"></a><h3>Element Pads</h3> 140</div> 141</div> 142</div> 143<div class="refsect1"> 144<a name="gst-plugins-good-plugins-v4l2radio.functions_details"></a><h2>Functions</h2> 145<p></p> 146</div> 147<div class="refsect1"> 148<a name="gst-plugins-good-plugins-v4l2radio.other_details"></a><h2>Types and Values</h2> 149<div class="refsect2"> 150<a name="GstV4l2Radio-struct"></a><h3>struct GstV4l2Radio</h3> 151<pre class="programlisting">struct GstV4l2Radio;</pre> 152<p>Opaque video4linux2 radio tuner element</p> 153</div> 154</div> 155<div class="refsect1"> 156<a name="gst-plugins-good-plugins-v4l2radio.property-details"></a><h2>Property Details</h2> 157<div class="refsect2"> 158<a name="GstV4l2Radio--device"></a><h3>The <code class="literal">“device”</code> property</h3> 159<pre class="programlisting"> “device” <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</pre> 160<p>Video4Linux2 radio device location.</p> 161<p>Flags: Read / Write</p> 162<p>Default value: "/dev/radio0"</p> 163</div> 164<hr> 165<div class="refsect2"> 166<a name="GstV4l2Radio--frequency"></a><h3>The <code class="literal">“frequency”</code> property</h3> 167<pre class="programlisting"> “frequency” <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre> 168<p>Station frequency in Hz.</p> 169<p>Flags: Read / Write</p> 170<p>Allowed values: [87500000,108000000]</p> 171<p>Default value: 100000000</p> 172</div> 173</div> 174</div> 175<div class="footer"> 176<hr>Generated by GTK-Doc V1.28</div> 177</body> 178</html>
