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>GstDynamicTypeFactory: GStreamer 1.0 Core Reference Manual</title> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="index.html" title="GStreamer 1.0 Core Reference Manual"> 8<link rel="up" href="libgstreamer.html" title="GStreamer Core Library"> 9<link rel="prev" href="GstDateTime.html" title="GstDateTime"> 10<link rel="next" href="GstElement.html" title="GstElement"> 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="#GstDynamicTypeFactory.description" class="shortcut">Description</a></span><span id="nav_hierarchy"> <span class="dim">|</span> 19 <a href="#GstDynamicTypeFactory.object-hierarchy" class="shortcut">Object Hierarchy</a></span> 20</td> 21<td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td> 22<td><a accesskey="u" href="libgstreamer.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td> 23<td><a accesskey="p" href="GstDateTime.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td> 24<td><a accesskey="n" href="GstElement.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td> 25</tr></table> 26<div class="refentry"> 27<a name="GstDynamicTypeFactory"></a><div class="titlepage"></div> 28<div class="refnamediv"><table width="100%"><tr> 29<td valign="top"> 30<h2><span class="refentrytitle"><a name="GstDynamicTypeFactory.top_of_page"></a>GstDynamicTypeFactory</span></h2> 31<p>GstDynamicTypeFactory — Represents a registered dynamically loadable GType</p> 32</td> 33<td class="gallery_image" valign="top" align="right"></td> 34</tr></table></div> 35<div class="refsect1"> 36<a name="GstDynamicTypeFactory.functions"></a><h2>Functions</h2> 37<div class="informaltable"><table class="informaltable" width="100%" border="0"> 38<colgroup> 39<col width="150px" class="functions_return"> 40<col class="functions_name"> 41</colgroup> 42<tbody> 43<tr> 44<td class="function_type"> 45<a href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#GType"><span class="returnvalue">GType</span></a> 46</td> 47<td class="function_name"> 48<a class="link" href="GstDynamicTypeFactory.html#gst-dynamic-type-factory-load" title="gst_dynamic_type_factory_load ()">gst_dynamic_type_factory_load</a> <span class="c_punctuation">()</span> 49</td> 50</tr> 51<tr> 52<td class="function_type"> 53<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> 54</td> 55<td class="function_name"> 56<a class="link" href="GstDynamicTypeFactory.html#gst-dynamic-type-register" title="gst_dynamic_type_register ()">gst_dynamic_type_register</a> <span class="c_punctuation">()</span> 57</td> 58</tr> 59</tbody> 60</table></div> 61</div> 62<div class="refsect1"> 63<a name="GstDynamicTypeFactory.other"></a><h2>Types and Values</h2> 64<div class="informaltable"><table class="informaltable" width="100%" border="0"> 65<colgroup> 66<col width="150px" class="name"> 67<col class="description"> 68</colgroup> 69<tbody><tr> 70<td class="datatype_keyword"> </td> 71<td class="function_name"><a class="link" href="GstDynamicTypeFactory.html#GstDynamicTypeFactory-struct" title="GstDynamicTypeFactory">GstDynamicTypeFactory</a></td> 72</tr></tbody> 73</table></div> 74</div> 75<div class="refsect1"> 76<a name="GstDynamicTypeFactory.object-hierarchy"></a><h2>Object Hierarchy</h2> 77<pre class="screen"> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject-struct">GObject</a> 78 <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a> 79 <span class="lineart">╰──</span> <a class="link" href="GstObject.html" title="GstObject">GstObject</a> 80 <span class="lineart">╰──</span> <a class="link" href="GstPluginFeature.html" title="GstPluginfeature">GstPluginFeature</a> 81 <span class="lineart">╰──</span> GstDynamicTypeFactory 82</pre> 83</div> 84<div class="refsect1"> 85<a name="GstDynamicTypeFactory.includes"></a><h2>Includes</h2> 86<pre class="synopsis">#include <gst/gst.h> 87</pre> 88</div> 89<div class="refsect1"> 90<a name="GstDynamicTypeFactory.description"></a><h2>Description</h2> 91<p><a class="link" href="GstDynamicTypeFactory.html" title="GstDynamicTypeFactory"><span class="type">GstDynamicTypeFactory</span></a> is used to represent a type that can be 92automatically loaded the first time it is used. For example, 93a non-standard type for use in caps fields.</p> 94<p>In general, applications and plugins don't need to use the factory 95beyond registering the type in a plugin init function. Once that is 96done, the type is stored in the registry, and ready as soon as the 97registry is loaded.</p> 98<div class="refsect3"> 99<a name="id-1.3.21.7.4"></a><h4>Registering a type for dynamic loading</h4> 100<div class="informalexample"> 101 <table class="listing_frame" border="0" cellpadding="0" cellspacing="0"> 102 <tbody> 103 <tr> 104 <td class="listing_lines" align="right"><pre>1 1052 1063 1074 1085</pre></td> 109 <td class="listing_code"><pre class="programlisting"><span class="gtkdoc kwb">static</span> gboolean 110<span class="function">plugin_init</span> <span class="gtkdoc opt">(</span>GstPlugin <span class="gtkdoc opt">*</span> plugin<span class="gtkdoc opt">)</span> 111<span class="gtkdoc opt">{</span> 112 <span class="keyword">return</span> <span class="function"><a href="GstDynamicTypeFactory.html#gst-dynamic-type-register">gst_dynamic_type_register</a></span> <span class="gtkdoc opt">(</span>plugin<span class="gtkdoc opt">,</span> GST_TYPE_CUSTOM_CAPS_FIELD<span class="gtkdoc opt">);</span> 113<span class="gtkdoc opt">}</span></pre></td> 114 </tr> 115 </tbody> 116 </table> 117</div> 118 119<p></p> 120</div> 121</div> 122<div class="refsect1"> 123<a name="GstDynamicTypeFactory.functions_details"></a><h2>Functions</h2> 124<div class="refsect2"> 125<a name="gst-dynamic-type-factory-load"></a><h3>gst_dynamic_type_factory_load ()</h3> 126<pre class="programlisting"><a href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#GType"><span class="returnvalue">GType</span></a> 127gst_dynamic_type_factory_load (<em class="parameter"><code>const <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *factoryname</code></em>);</pre> 128</div> 129<hr> 130<div class="refsect2"> 131<a name="gst-dynamic-type-register"></a><h3>gst_dynamic_type_register ()</h3> 132<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> 133gst_dynamic_type_register (<em class="parameter"><code><a class="link" href="GstPlugin.html" title="GstPlugin"><span class="type">GstPlugin</span></a> *plugin</code></em>, 134 <em class="parameter"><code><a href="/usr/share/gtk-doc/html/gobject/gobject-Type-Information.html#GType"><span class="type">GType</span></a> type</code></em>);</pre> 135</div> 136</div> 137<div class="refsect1"> 138<a name="GstDynamicTypeFactory.other_details"></a><h2>Types and Values</h2> 139<div class="refsect2"> 140<a name="GstDynamicTypeFactory-struct"></a><h3>GstDynamicTypeFactory</h3> 141<pre class="programlisting">typedef struct _GstDynamicTypeFactory GstDynamicTypeFactory;</pre> 142<p>The opaque <a class="link" href="GstDynamicTypeFactory.html" title="GstDynamicTypeFactory"><span class="type">GstDynamicTypeFactory</span></a> data structure.</p> 143</div> 144</div> 145<div class="refsect1"> 146<a name="GstDynamicTypeFactory.see-also"></a><h2>See Also</h2> 147<p><a class="link" href="GstPlugin.html" title="GstPlugin"><span class="type">GstPlugin</span></a>, <a class="link" href="GstPluginFeature.html" title="GstPluginfeature"><span class="type">GstPluginFeature</span></a>.</p> 148</div> 149</div> 150<div class="footer"> 151<hr>Generated by GTK-Doc V1.28</div> 152</body> 153</html>
