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| <div class="refentry"> |
| <a name="gstreamer-GstDeviceMonitor"></a><div class="titlepage"></div> |
| <div class="refnamediv"><table width="100%"><tr> |
| <td valign="top"> |
| <h2><span class="refentrytitle"><a name="gstreamer-GstDeviceMonitor.top_of_page"></a>GstDeviceMonitor</span></h2> |
| <p>GstDeviceMonitor — A device monitor and prober</p> |
| </td> |
| <td class="gallery_image" valign="top" align="right"></td> |
| </tr></table></div> |
| <div class="refsect1"> |
| <a name="gstreamer-GstDeviceMonitor.functions"></a><h2>Functions</h2> |
| <div class="informaltable"><table width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="functions_return"> |
| <col class="functions_name"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="function_type"> |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gstreamer-GstDeviceMonitor.html#gst-device-monitor-can-monitor" title="gst_device_monitor_can_monitor ()">gst_device_monitor_can_monitor</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <span class="returnvalue">void</span> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gstreamer-GstDeviceMonitor.html#gst-device-monitor-class-add-metadata" title="gst_device_monitor_class_add_metadata ()">gst_device_monitor_class_add_metadata</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <span class="returnvalue">void</span> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gstreamer-GstDeviceMonitor.html#gst-device-monitor-class-add-static-metadata" title="gst_device_monitor_class_add_static_metadata ()">gst_device_monitor_class_add_static_metadata</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type">const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gstreamer-GstDeviceMonitor.html#gst-device-monitor-class-get-metadata" title="gst_device_monitor_class_get_metadata ()">gst_device_monitor_class_get_metadata</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <span class="returnvalue">void</span> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gstreamer-GstDeviceMonitor.html#gst-device-monitor-class-set-metadata" title="gst_device_monitor_class_set_metadata ()">gst_device_monitor_class_set_metadata</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <span class="returnvalue">void</span> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gstreamer-GstDeviceMonitor.html#gst-device-monitor-class-set-static-metadata" title="gst_device_monitor_class_set_static_metadata ()">gst_device_monitor_class_set_static_metadata</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <span class="returnvalue">void</span> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gstreamer-GstDeviceMonitor.html#gst-device-monitor-device-add" title="gst_device_monitor_device_add ()">gst_device_monitor_device_add</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <span class="returnvalue">void</span> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gstreamer-GstDeviceMonitor.html#gst-device-monitor-device-remove" title="gst_device_monitor_device_remove ()">gst_device_monitor_device_remove</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="GstBus.html" title="GstBus"><span class="returnvalue">GstBus</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gstreamer-GstDeviceMonitor.html#gst-device-monitor-get-bus" title="gst_device_monitor_get_bus ()">gst_device_monitor_get_bus</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Doubly-Linked-Lists.html#GList"><span class="returnvalue">GList</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gstreamer-GstDeviceMonitor.html#gst-device-monitor-get-devices" title="gst_device_monitor_get_devices ()">gst_device_monitor_get_devices</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a class="link" href="GstDeviceMonitorFactory.html" title="GstDeviceMonitorFactory"><span class="returnvalue">GstDeviceMonitorFactory</span></a> * |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gstreamer-GstDeviceMonitor.html#gst-device-monitor-get-factory" title="gst_device_monitor_get_factory ()">gst_device_monitor_get_factory</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gstreamer-GstDeviceMonitor.html#gst-device-monitor-register" title="gst_device_monitor_register ()">gst_device_monitor_register</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gstreamer-GstDeviceMonitor.html#gst-device-monitor-start" title="gst_device_monitor_start ()">gst_device_monitor_start</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| <tr> |
| <td class="function_type"> |
| <span class="returnvalue">void</span> |
| </td> |
| <td class="function_name"> |
| <a class="link" href="gstreamer-GstDeviceMonitor.html#gst-device-monitor-stop" title="gst_device_monitor_stop ()">gst_device_monitor_stop</a> <span class="c_punctuation">()</span> |
| </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect1"> |
| <a name="gstreamer-GstDeviceMonitor.other"></a><h2>Types and Values</h2> |
| <div class="informaltable"><table 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="gstreamer-GstDeviceMonitor.html#GstDeviceMonitor" title="struct GstDeviceMonitor">GstDeviceMonitor</a></td> |
| </tr> |
| <tr> |
| <td class="datatype_keyword">struct</td> |
| <td class="function_name"><a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitorClass" title="struct GstDeviceMonitorClass">GstDeviceMonitorClass</a></td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect1"> |
| <a name="gstreamer-GstDeviceMonitor.object-hierarchy"></a><h2>Object Hierarchy</h2> |
| <pre class="screen"> |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gstreamer-GstDeviceMonitor.includes"></a><h2>Includes</h2> |
| <pre class="synopsis">#include <gst/gst.h> |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gstreamer-GstDeviceMonitor.description"></a><h2>Description</h2> |
| <p>A <a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitor" title="struct GstDeviceMonitor"><span class="type">GstDeviceMonitor</span></a> subclass is provided by a plugin that handles devices |
| if there is a way to programatically list connected devices. It can also |
| optionally provide updates to the list of connected devices.</p> |
| <p>Each <a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitor" title="struct GstDeviceMonitor"><span class="type">GstDeviceMonitor</span></a> subclass is a singleton, a plugin should |
| normally provide a single subclass for all devices.</p> |
| <p>Applications would normally use a <a class="link" href="gstreamer-GstGlobalDeviceMonitor.html#GstGlobalDeviceMonitor" title="struct GstGlobalDeviceMonitor"><span class="type">GstGlobalDeviceMonitor</span></a> to monitor devices |
| from all revelant monitors.</p> |
| </div> |
| <div class="refsect1"> |
| <a name="gstreamer-GstDeviceMonitor.functions_details"></a><h2>Functions</h2> |
| <div class="refsect2"> |
| <a name="gst-device-monitor-can-monitor"></a><h3>gst_device_monitor_can_monitor ()</h3> |
| <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| gst_device_monitor_can_monitor (<em class="parameter"><code><a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitor" title="struct GstDeviceMonitor"><span class="type">GstDeviceMonitor</span></a> *monitor</code></em>);</pre> |
| <p>If this function returns <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a>, then the device monitor can monitor if |
| devices are added or removed. Otherwise, it can only do static probing.</p> |
| <div class="refsect3"> |
| <a name="id-1.4.3.8.2.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="parameters_name"> |
| <col class="parameters_description"> |
| <col width="200px" class="parameters_annotations"> |
| </colgroup> |
| <tbody><tr> |
| <td class="parameter_name"><p>monitor</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitor" title="struct GstDeviceMonitor"><span class="type">GstDeviceMonitor</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.4.3.8.2.6"></a><h4>Returns</h4> |
| <p> <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the <a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitor" title="struct GstDeviceMonitor"><span class="type">GstDeviceMonitor</span></a> support monitoring, <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> otherwise</p> |
| <p></p> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-device-monitor-class-add-metadata"></a><h3>gst_device_monitor_class_add_metadata ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> |
| gst_device_monitor_class_add_metadata (<em class="parameter"><code><a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitorClass" title="struct GstDeviceMonitorClass"><span class="type">GstDeviceMonitorClass</span></a> *klass</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *key</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *value</code></em>);</pre> |
| <p>Set <em class="parameter"><code>key</code></em> |
| with <em class="parameter"><code>value</code></em> |
| as metadata in <em class="parameter"><code>klass</code></em> |
| .</p> |
| <div class="refsect3"> |
| <a name="id-1.4.3.8.3.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="parameters_name"> |
| <col class="parameters_description"> |
| <col width="200px" class="parameters_annotations"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="parameter_name"><p>klass</p></td> |
| <td class="parameter_description"><p>class to set metadata for</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>key</p></td> |
| <td class="parameter_description"><p>the key to set</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>value</p></td> |
| <td class="parameter_description"><p>the value to set</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-device-monitor-class-add-static-metadata"></a><h3>gst_device_monitor_class_add_static_metadata ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> |
| gst_device_monitor_class_add_static_metadata |
| (<em class="parameter"><code><a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitorClass" title="struct GstDeviceMonitorClass"><span class="type">GstDeviceMonitorClass</span></a> *klass</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *key</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *value</code></em>);</pre> |
| <p>Set <em class="parameter"><code>key</code></em> |
| with <em class="parameter"><code>value</code></em> |
| as metadata in <em class="parameter"><code>klass</code></em> |
| .</p> |
| <p>Same as <a class="link" href="gstreamer-GstDeviceMonitor.html#gst-device-monitor-class-add-metadata" title="gst_device_monitor_class_add_metadata ()"><code class="function">gst_device_monitor_class_add_metadata()</code></a>, but <em class="parameter"><code>value</code></em> |
| must be a static string |
| or an inlined string, as it will not be copied. (GStreamer plugins will |
| be made resident once loaded, so this function can be used even from |
| dynamically loaded plugins.)</p> |
| <div class="refsect3"> |
| <a name="id-1.4.3.8.4.6"></a><h4>Parameters</h4> |
| <div class="informaltable"><table width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="parameters_name"> |
| <col class="parameters_description"> |
| <col width="200px" class="parameters_annotations"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="parameter_name"><p>klass</p></td> |
| <td class="parameter_description"><p>class to set metadata for</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>key</p></td> |
| <td class="parameter_description"><p>the key to set</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>value</p></td> |
| <td class="parameter_description"><p>the value to set</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <p class="since">Since 1.4</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-device-monitor-class-get-metadata"></a><h3>gst_device_monitor_class_get_metadata ()</h3> |
| <pre class="programlisting">const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="returnvalue">gchar</span></a> * |
| gst_device_monitor_class_get_metadata (<em class="parameter"><code><a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitorClass" title="struct GstDeviceMonitorClass"><span class="type">GstDeviceMonitorClass</span></a> *klass</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *key</code></em>);</pre> |
| <p>Get metadata with <em class="parameter"><code>key</code></em> |
| in <em class="parameter"><code>klass</code></em> |
| .</p> |
| <div class="refsect3"> |
| <a name="id-1.4.3.8.5.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="parameters_name"> |
| <col class="parameters_description"> |
| <col width="200px" class="parameters_annotations"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="parameter_name"><p>klass</p></td> |
| <td class="parameter_description"><p>class to get metadata for</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>key</p></td> |
| <td class="parameter_description"><p>the key to get</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.4.3.8.5.6"></a><h4>Returns</h4> |
| <p> the metadata for <em class="parameter"><code>key</code></em> |
| .</p> |
| <p></p> |
| </div> |
| <p class="since">Since 1.4</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-device-monitor-class-set-metadata"></a><h3>gst_device_monitor_class_set_metadata ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> |
| gst_device_monitor_class_set_metadata (<em class="parameter"><code><a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitorClass" title="struct GstDeviceMonitorClass"><span class="type">GstDeviceMonitorClass</span></a> *klass</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *longname</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *classification</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *description</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *author</code></em>);</pre> |
| <p>Sets the detailed information for a <a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitorClass" title="struct GstDeviceMonitorClass"><span class="type">GstDeviceMonitorClass</span></a>.</p> |
| <div class="note">This function is for use in _class_init functions only.</div> |
| <div class="refsect3"> |
| <a name="id-1.4.3.8.6.6"></a><h4>Parameters</h4> |
| <div class="informaltable"><table width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="parameters_name"> |
| <col class="parameters_description"> |
| <col width="200px" class="parameters_annotations"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="parameter_name"><p>klass</p></td> |
| <td class="parameter_description"><p>class to set metadata for</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>longname</p></td> |
| <td class="parameter_description"><p>The long English name of the device monitor. E.g. "File Sink"</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>classification</p></td> |
| <td class="parameter_description"><p>String describing the type of device monitor, as an unordered list |
| separated with slashes ('/'). See draft-klass.txt of the design docs |
| for more details and common types. E.g: "Sink/File"</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>description</p></td> |
| <td class="parameter_description"><p>Sentence describing the purpose of the device monitor. |
| E.g: "Write stream to a file"</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>author</p></td> |
| <td class="parameter_description"><p>Name and contact details of the author(s). Use \n to separate |
| multiple author metadata. E.g: "Joe Bloggs <joe.blogs at foo.com>"</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <p class="since">Since 1.4</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-device-monitor-class-set-static-metadata"></a><h3>gst_device_monitor_class_set_static_metadata ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> |
| gst_device_monitor_class_set_static_metadata |
| (<em class="parameter"><code><a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitorClass" title="struct GstDeviceMonitorClass"><span class="type">GstDeviceMonitorClass</span></a> *klass</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *longname</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *classification</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *description</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *author</code></em>);</pre> |
| <p>Sets the detailed information for a <a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitorClass" title="struct GstDeviceMonitorClass"><span class="type">GstDeviceMonitorClass</span></a>.</p> |
| <div class="note">This function is for use in _class_init functions only.</div> |
| <p>Same as <a class="link" href="gstreamer-GstDeviceMonitor.html#gst-device-monitor-class-set-metadata" title="gst_device_monitor_class_set_metadata ()"><code class="function">gst_device_monitor_class_set_metadata()</code></a>, but <em class="parameter"><code>longname</code></em> |
| , <em class="parameter"><code>classification</code></em> |
| , |
| <em class="parameter"><code>description</code></em> |
| , and <em class="parameter"><code>author</code></em> |
| must be static strings or inlined strings, as |
| they will not be copied. (GStreamer plugins will be made resident once |
| loaded, so this function can be used even from dynamically loaded plugins.)</p> |
| <div class="refsect3"> |
| <a name="id-1.4.3.8.7.7"></a><h4>Parameters</h4> |
| <div class="informaltable"><table width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="parameters_name"> |
| <col class="parameters_description"> |
| <col width="200px" class="parameters_annotations"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="parameter_name"><p>klass</p></td> |
| <td class="parameter_description"><p>class to set metadata for</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>longname</p></td> |
| <td class="parameter_description"><p>The long English name of the element. E.g. "File Sink"</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>classification</p></td> |
| <td class="parameter_description"><p>String describing the type of element, as an unordered list |
| separated with slashes ('/'). See draft-klass.txt of the design docs |
| for more details and common types. E.g: "Sink/File"</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>description</p></td> |
| <td class="parameter_description"><p>Sentence describing the purpose of the element. |
| E.g: "Write stream to a file"</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>author</p></td> |
| <td class="parameter_description"><p>Name and contact details of the author(s). Use \n to separate |
| multiple author metadata. E.g: "Joe Bloggs <joe.blogs at foo.com>"</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <p class="since">Since 1.4</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-device-monitor-device-add"></a><h3>gst_device_monitor_device_add ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> |
| gst_device_monitor_device_add (<em class="parameter"><code><a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitor" title="struct GstDeviceMonitor"><span class="type">GstDeviceMonitor</span></a> *monitor</code></em>, |
| <em class="parameter"><code><a class="link" href="gstreamer-GstDevice.html#GstDevice" title="struct GstDevice"><span class="type">GstDevice</span></a> *device</code></em>);</pre> |
| <p>Posts a message on the monitor's <a class="link" href="GstBus.html" title="GstBus"><span class="type">GstBus</span></a> to inform applications that |
| a new device has been added.</p> |
| <p>This is for use by subclasses.</p> |
| <div class="refsect3"> |
| <a name="id-1.4.3.8.8.6"></a><h4>Parameters</h4> |
| <div class="informaltable"><table width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="parameters_name"> |
| <col class="parameters_description"> |
| <col width="200px" class="parameters_annotations"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="parameter_name"><p>monitor</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitor" title="struct GstDeviceMonitor"><span class="type">GstDeviceMonitor</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>device</p></td> |
| <td class="parameter_description"><p> a <a class="link" href="gstreamer-GstDevice.html#GstDevice" title="struct GstDevice"><span class="type">GstDevice</span></a> that has been added. </p></td> |
| <td class="parameter_annotations"><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <p class="since">Since 1.4</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-device-monitor-device-remove"></a><h3>gst_device_monitor_device_remove ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> |
| gst_device_monitor_device_remove (<em class="parameter"><code><a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitor" title="struct GstDeviceMonitor"><span class="type">GstDeviceMonitor</span></a> *monitor</code></em>, |
| <em class="parameter"><code><a class="link" href="gstreamer-GstDevice.html#GstDevice" title="struct GstDevice"><span class="type">GstDevice</span></a> *device</code></em>);</pre> |
| <p>Posts a message on the monitor's <a class="link" href="GstBus.html" title="GstBus"><span class="type">GstBus</span></a> to inform applications that |
| a device has been removed.</p> |
| <p>This is for use by subclasses.</p> |
| <div class="refsect3"> |
| <a name="id-1.4.3.8.9.6"></a><h4>Parameters</h4> |
| <div class="informaltable"><table width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="parameters_name"> |
| <col class="parameters_description"> |
| <col width="200px" class="parameters_annotations"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="parameter_name"><p>monitor</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitor" title="struct GstDeviceMonitor"><span class="type">GstDeviceMonitor</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>device</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="gstreamer-GstDevice.html#GstDevice" title="struct GstDevice"><span class="type">GstDevice</span></a> that has been removed</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <p class="since">Since 1.4</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-device-monitor-get-bus"></a><h3>gst_device_monitor_get_bus ()</h3> |
| <pre class="programlisting"><a class="link" href="GstBus.html" title="GstBus"><span class="returnvalue">GstBus</span></a> * |
| gst_device_monitor_get_bus (<em class="parameter"><code><a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitor" title="struct GstDeviceMonitor"><span class="type">GstDeviceMonitor</span></a> *monitor</code></em>);</pre> |
| <p>Gets the <a class="link" href="GstBus.html" title="GstBus"><span class="type">GstBus</span></a> of this <a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitor" title="struct GstDeviceMonitor"><span class="type">GstDeviceMonitor</span></a></p> |
| <div class="refsect3"> |
| <a name="id-1.4.3.8.10.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="parameters_name"> |
| <col class="parameters_description"> |
| <col width="200px" class="parameters_annotations"> |
| </colgroup> |
| <tbody><tr> |
| <td class="parameter_name"><p>monitor</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitor" title="struct GstDeviceMonitor"><span class="type">GstDeviceMonitor</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.4.3.8.10.6"></a><h4>Returns</h4> |
| <p> a <a class="link" href="GstBus.html" title="GstBus"><span class="type">GstBus</span></a>. </p> |
| <p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></p> |
| </div> |
| <p class="since">Since 1.4</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-device-monitor-get-devices"></a><h3>gst_device_monitor_get_devices ()</h3> |
| <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Doubly-Linked-Lists.html#GList"><span class="returnvalue">GList</span></a> * |
| gst_device_monitor_get_devices (<em class="parameter"><code><a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitor" title="struct GstDeviceMonitor"><span class="type">GstDeviceMonitor</span></a> *monitor</code></em>);</pre> |
| <p>Gets a list of devices that this monitor understands. This may actually |
| probe the hardware if the monitor is not currently started.</p> |
| <div class="refsect3"> |
| <a name="id-1.4.3.8.11.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="parameters_name"> |
| <col class="parameters_description"> |
| <col width="200px" class="parameters_annotations"> |
| </colgroup> |
| <tbody><tr> |
| <td class="parameter_name"><p>monitor</p></td> |
| <td class="parameter_description"><p>A <a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitor" title="struct GstDeviceMonitor"><span class="type">GstDeviceMonitor</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.4.3.8.11.6"></a><h4>Returns</h4> |
| <p> a <a href="http://library.gnome.org/devel/glib/unstable/glib-Doubly-Linked-Lists.html#GList"><span class="type">GList</span></a> of |
| <a class="link" href="gstreamer-GstDevice.html#GstDevice" title="struct GstDevice"><span class="type">GstDevice</span></a>. </p> |
| <p><span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>][<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> GstDevice]</span></p> |
| </div> |
| <p class="since">Since 1.4</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-device-monitor-get-factory"></a><h3>gst_device_monitor_get_factory ()</h3> |
| <pre class="programlisting"><a class="link" href="GstDeviceMonitorFactory.html" title="GstDeviceMonitorFactory"><span class="returnvalue">GstDeviceMonitorFactory</span></a> * |
| gst_device_monitor_get_factory (<em class="parameter"><code><a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitor" title="struct GstDeviceMonitor"><span class="type">GstDeviceMonitor</span></a> *monitor</code></em>);</pre> |
| <p>Retrieves the factory that was used to create this device monitor.</p> |
| <div class="refsect3"> |
| <a name="id-1.4.3.8.12.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="parameters_name"> |
| <col class="parameters_description"> |
| <col width="200px" class="parameters_annotations"> |
| </colgroup> |
| <tbody><tr> |
| <td class="parameter_name"><p>monitor</p></td> |
| <td class="parameter_description"><p>a <a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitor" title="struct GstDeviceMonitor"><span class="type">GstDeviceMonitor</span></a> to request the device monitor factory of.</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.4.3.8.12.6"></a><h4>Returns</h4> |
| <p> the <a class="link" href="GstDeviceMonitorFactory.html" title="GstDeviceMonitorFactory"><span class="type">GstDeviceMonitorFactory</span></a> used for creating this |
| device monitor. no refcounting is needed. </p> |
| <p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p> |
| </div> |
| <p class="since">Since 1.4</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-device-monitor-register"></a><h3>gst_device_monitor_register ()</h3> |
| <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| gst_device_monitor_register (<em class="parameter"><code><a class="link" href="GstPlugin.html" title="GstPlugin"><span class="type">GstPlugin</span></a> *plugin</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *name</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> rank</code></em>, |
| <em class="parameter"><code><a href="http://library.gnome.org/devel/gobject/unstable/gobject-Type-Information.html#GType"><span class="type">GType</span></a> type</code></em>);</pre> |
| <p>Create a new device monitorfactory capable of instantiating objects of the |
| <em class="parameter"><code>type</code></em> |
| and add the factory to <em class="parameter"><code>plugin</code></em> |
| .</p> |
| <div class="refsect3"> |
| <a name="id-1.4.3.8.13.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="parameters_name"> |
| <col class="parameters_description"> |
| <col width="200px" class="parameters_annotations"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="parameter_name"><p>plugin</p></td> |
| <td class="parameter_description"><p> <a class="link" href="GstPlugin.html" title="GstPlugin"><span class="type">GstPlugin</span></a> to register the device monitor with, or <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> for |
| a static device monitor. </p></td> |
| <td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is ok, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>name</p></td> |
| <td class="parameter_description"><p>name of device monitors of this type</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>rank</p></td> |
| <td class="parameter_description"><p>rank of device monitor (higher rank means more importance when autoplugging)</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="parameter_name"><p>type</p></td> |
| <td class="parameter_description"><p>GType of device monitor to register</p></td> |
| <td class="parameter_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.4.3.8.13.6"></a><h4>Returns</h4> |
| <p> <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a>, if the registering succeeded, <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><code class="literal">FALSE</code></a> on error</p> |
| <p></p> |
| </div> |
| <p class="since">Since 1.4</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-device-monitor-start"></a><h3>gst_device_monitor_start ()</h3> |
| <pre class="programlisting"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> |
| gst_device_monitor_start (<em class="parameter"><code><a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitor" title="struct GstDeviceMonitor"><span class="type">GstDeviceMonitor</span></a> *monitor</code></em>);</pre> |
| <p>Starts monitoring the devices. This will cause <span class="type">GST_MESSAGE_DEVICE</span> messages |
| to be posted on the monitor's bus when devices are added or removed from |
| the system.</p> |
| <p>Since the <a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitor" title="struct GstDeviceMonitor"><span class="type">GstDeviceMonitor</span></a> is a singleton, |
| <a class="link" href="gstreamer-GstDeviceMonitor.html#gst-device-monitor-start" title="gst_device_monitor_start ()"><code class="function">gst_device_monitor_start()</code></a> may already have been called by another |
| user of the object, <a class="link" href="gstreamer-GstDeviceMonitor.html#gst-device-monitor-stop" title="gst_device_monitor_stop ()"><code class="function">gst_device_monitor_stop()</code></a> needs to be called the same |
| number of times.</p> |
| <div class="refsect3"> |
| <a name="id-1.4.3.8.14.6"></a><h4>Parameters</h4> |
| <div class="informaltable"><table width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="parameters_name"> |
| <col class="parameters_description"> |
| <col width="200px" class="parameters_annotations"> |
| </colgroup> |
| <tbody><tr> |
| <td class="parameter_name"><p>monitor</p></td> |
| <td class="parameter_description"><p>A <a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitor" title="struct GstDeviceMonitor"><span class="type">GstDeviceMonitor</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <div class="refsect3"> |
| <a name="id-1.4.3.8.14.7"></a><h4>Returns</h4> |
| <p> <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><code class="literal">TRUE</code></a> if the device monitoring could be started</p> |
| <p></p> |
| </div> |
| <p class="since">Since 1.4</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-device-monitor-stop"></a><h3>gst_device_monitor_stop ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> |
| gst_device_monitor_stop (<em class="parameter"><code><a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitor" title="struct GstDeviceMonitor"><span class="type">GstDeviceMonitor</span></a> *monitor</code></em>);</pre> |
| <p>Decreases the use-count by one. If the use count reaches zero, this |
| <a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitor" title="struct GstDeviceMonitor"><span class="type">GstDeviceMonitor</span></a> will stop monitoring the devices. This needs to be |
| called the same number of times that <a class="link" href="gstreamer-GstDeviceMonitor.html#gst-device-monitor-start" title="gst_device_monitor_start ()"><code class="function">gst_device_monitor_start()</code></a> was called.</p> |
| <div class="refsect3"> |
| <a name="id-1.4.3.8.15.5"></a><h4>Parameters</h4> |
| <div class="informaltable"><table width="100%" border="0"> |
| <colgroup> |
| <col width="150px" class="parameters_name"> |
| <col class="parameters_description"> |
| <col width="200px" class="parameters_annotations"> |
| </colgroup> |
| <tbody><tr> |
| <td class="parameter_name"><p>monitor</p></td> |
| <td class="parameter_description"><p>A <a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitor" title="struct GstDeviceMonitor"><span class="type">GstDeviceMonitor</span></a></p></td> |
| <td class="parameter_annotations"> </td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <p class="since">Since 1.4</p> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="gstreamer-GstDeviceMonitor.other_details"></a><h2>Types and Values</h2> |
| <div class="refsect2"> |
| <a name="GstDeviceMonitor"></a><h3>struct GstDeviceMonitor</h3> |
| <pre class="programlisting">struct GstDeviceMonitor { |
| GstObject parent; |
| |
| /* Protected by the Object lock */ |
| GList *devices; |
| }; |
| </pre> |
| <p>The structure of the base <a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitor" title="struct GstDeviceMonitor"><span class="type">GstDeviceMonitor</span></a></p> |
| <div class="refsect3"> |
| <a name="id-1.4.3.9.2.5"></a><h4>Members</h4> |
| <div class="informaltable"><table width="100%" border="0"> |
| <colgroup> |
| <col width="300px" class="struct_members_name"> |
| <col class="struct_members_description"> |
| <col width="200px" class="struct_members_annotations"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="struct_member_name"><p><a class="link" href="GstObject.html" title="GstObject"><span class="type">GstObject</span></a> <em class="structfield"><code><a name="GstDeviceMonitor.parent"></a>parent</code></em>;</p></td> |
| <td class="struct_member_description"><p>The parent <a class="link" href="GstObject.html" title="GstObject"><span class="type">GstObject</span></a></p></td> |
| <td class="struct_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="struct_member_name"><p><a href="http://library.gnome.org/devel/glib/unstable/glib-Doubly-Linked-Lists.html#GList"><span class="type">GList</span></a> *<em class="structfield"><code><a name="GstDeviceMonitor.devices"></a>devices</code></em>;</p></td> |
| <td class="struct_member_description"><p>a <a href="http://library.gnome.org/devel/glib/unstable/glib-Doubly-Linked-Lists.html#GList"><span class="type">GList</span></a> of the <a class="link" href="gstreamer-GstDevice.html#GstDevice" title="struct GstDevice"><span class="type">GstDevice</span></a> objects</p></td> |
| <td class="struct_member_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <p class="since">Since 1.4</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstDeviceMonitorClass"></a><h3>struct GstDeviceMonitorClass</h3> |
| <pre class="programlisting">struct GstDeviceMonitorClass { |
| GstObjectClass parent_class; |
| |
| GstDeviceMonitorFactory *factory; |
| |
| GList* (*probe) (GstDeviceMonitor * monitor); |
| |
| gboolean (*start) (GstDeviceMonitor * monitor); |
| void (*stop) (GstDeviceMonitor * monitor); |
| }; |
| </pre> |
| <p>The structure of the base <a class="link" href="gstreamer-GstDeviceMonitor.html#GstDeviceMonitorClass" title="struct GstDeviceMonitorClass"><span class="type">GstDeviceMonitorClass</span></a></p> |
| <div class="refsect3"> |
| <a name="id-1.4.3.9.3.5"></a><h4>Members</h4> |
| <div class="informaltable"><table width="100%" border="0"> |
| <colgroup> |
| <col width="300px" class="struct_members_name"> |
| <col class="struct_members_description"> |
| <col width="200px" class="struct_members_annotations"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="struct_member_name"><p><a class="link" href="GstObject.html#GstObjectClass" title="struct GstObjectClass"><span class="type">GstObjectClass</span></a> <em class="structfield"><code><a name="GstDeviceMonitorClass.parent-class"></a>parent_class</code></em>;</p></td> |
| <td class="struct_member_description"><p>the parent <a class="link" href="GstObject.html#GstObjectClass" title="struct GstObjectClass"><span class="type">GstObjectClass</span></a> structure</p></td> |
| <td class="struct_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="struct_member_name"><p><a class="link" href="GstDeviceMonitorFactory.html" title="GstDeviceMonitorFactory"><span class="type">GstDeviceMonitorFactory</span></a> *<em class="structfield"><code><a name="GstDeviceMonitorClass.factory"></a>factory</code></em>;</p></td> |
| <td class="struct_member_description"><p>a pointer to the <a class="link" href="GstDeviceMonitorFactory.html" title="GstDeviceMonitorFactory"><span class="type">GstDeviceMonitorFactory</span></a> that creates this |
| monitor</p></td> |
| <td class="struct_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="struct_member_name"><p><em class="structfield"><code><a name="GstDeviceMonitorClass.probe"></a>probe</code></em> ()</p></td> |
| <td class="struct_member_description"><p>Returns a list of devices that are currently available. |
| This should never block.</p></td> |
| <td class="struct_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="struct_member_name"><p><em class="structfield"><code><a name="GstDeviceMonitorClass.start"></a>start</code></em> ()</p></td> |
| <td class="struct_member_description"><p>Starts monitoring for new devices. Only subclasses that can know |
| that devices have been added or remove need to implement this method.</p></td> |
| <td class="struct_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="struct_member_name"><p><em class="structfield"><code><a name="GstDeviceMonitorClass.stop"></a>stop</code></em> ()</p></td> |
| <td class="struct_member_description"><p>Stops monitoring for new devices. Only subclasses that implement |
| the <code class="function">start()</code> method need to implement this method.</p></td> |
| <td class="struct_member_annotations"> </td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <p class="since">Since 1.4</p> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="gstreamer-GstDeviceMonitor.see-also"></a><h2>See Also</h2> |
| <p><a class="link" href="gstreamer-GstDevice.html#GstDevice" title="struct GstDevice"><span class="type">GstDevice</span></a>, <a class="link" href="gstreamer-GstGlobalDeviceMonitor.html#GstGlobalDeviceMonitor" title="struct GstGlobalDeviceMonitor"><span class="type">GstGlobalDeviceMonitor</span></a></p> |
| </div> |
| </div> |
| <div class="footer"> |
| <hr> |
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