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| | |
| <a href="#gst-plugins-base-libs-gstpropertyprobe.description" class="shortcut">Description</a> |
| | |
| <a href="#gst-plugins-base-libs-gstpropertyprobe.object-hierarchy" class="shortcut">Object Hierarchy</a> |
| | |
| <a href="#gst-plugins-base-libs-gstpropertyprobe.signals" class="shortcut">Signals</a> |
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| <div class="refentry"> |
| <a name="gst-plugins-base-libs-gstpropertyprobe"></a><div class="titlepage"></div> |
| <div class="refnamediv"><table width="100%"><tr> |
| <td valign="top"> |
| <h2><span class="refentrytitle"><a name="gst-plugins-base-libs-gstpropertyprobe.top_of_page"></a>gstpropertyprobe</span></h2> |
| <p>gstpropertyprobe — Interface for probing possible property values</p> |
| </td> |
| <td valign="top" align="right"></td> |
| </tr></table></div> |
| <div class="refsynopsisdiv"> |
| <a name="gst-plugins-base-libs-gstpropertyprobe.synopsis"></a><h2>Synopsis</h2> |
| <a name="GstPropertyProbe"></a><pre class="synopsis"> |
| #include <gst/interfaces/propertyprobe.h> |
| |
| <a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe-struct" title="GstPropertyProbe">GstPropertyProbe</a>; |
| struct <a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbeInterface" title="struct GstPropertyProbeInterface">GstPropertyProbeInterface</a>; |
| const <a href="http://library.gnome.org/devel/glib/unstable/glib-Doubly-Linked-Lists.html#GList"><span class="returnvalue">GList</span></a> * <a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#gst-property-probe-get-properties" title="gst_property_probe_get_properties ()">gst_property_probe_get_properties</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> *probe</code></em>); |
| const <a href="http://library.gnome.org/devel/gobject/unstable/gobject-GParamSpec.html#GParamSpec"><span class="returnvalue">GParamSpec</span></a> * <a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#gst-property-probe-get-property" title="gst_property_probe_get_property ()">gst_property_probe_get_property</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> *probe</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>); |
| <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Value-arrays.html#GValueArray"><span class="returnvalue">GValueArray</span></a> * <a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#gst-property-probe-get-values" title="gst_property_probe_get_values ()">gst_property_probe_get_values</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> *probe</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/gobject/unstable/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> *pspec</code></em>); |
| <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Value-arrays.html#GValueArray"><span class="returnvalue">GValueArray</span></a> * <a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#gst-property-probe-get-values-name" title="gst_property_probe_get_values_name ()">gst_property_probe_get_values_name</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> *probe</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>); |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#gst-property-probe-needs-probe" title="gst_property_probe_needs_probe ()">gst_property_probe_needs_probe</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> *probe</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/gobject/unstable/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> *pspec</code></em>); |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a> <a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#gst-property-probe-needs-probe-name" title="gst_property_probe_needs_probe_name ()">gst_property_probe_needs_probe_name</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> *probe</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>); |
| <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Value-arrays.html#GValueArray"><span class="returnvalue">GValueArray</span></a> * <a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#gst-property-probe-probe-and-get-values" title="gst_property_probe_probe_and_get_values ()">gst_property_probe_probe_and_get_values</a> |
| (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> *probe</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/gobject/unstable/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> *pspec</code></em>); |
| <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Value-arrays.html#GValueArray"><span class="returnvalue">GValueArray</span></a> * <a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#gst-property-probe-probe-and-get-values-name" title="gst_property_probe_probe_and_get_values_name ()">gst_property_probe_probe_and_get_values_name</a> |
| (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> *probe</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>); |
| <span class="returnvalue">void</span> <a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#gst-property-probe-probe-property" title="gst_property_probe_probe_property ()">gst_property_probe_probe_property</a> (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> *probe</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/gobject/unstable/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> *pspec</code></em>); |
| <span class="returnvalue">void</span> <a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#gst-property-probe-probe-property-name" title="gst_property_probe_probe_property_name ()">gst_property_probe_probe_property_name</a> |
| (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> *probe</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>); |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-libs-gstpropertyprobe.object-hierarchy"></a><h2>Object Hierarchy</h2> |
| <pre class="synopsis"> |
| GInterface |
| +----GstPropertyProbe |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-libs-gstpropertyprobe.signals"></a><h2>Signals</h2> |
| <pre class="synopsis"> |
| "<a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe-probe-needed" title='The "probe-needed" signal'>probe-needed</a>" : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">Run Last</code></a> |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-libs-gstpropertyprobe.description"></a><h2>Description</h2> |
| <p> |
| The property probe is a way to autodetect allowed values for a GObject |
| property. It's primary use is to autodetect device-names in several elements. |
| </p> |
| <p> |
| The interface is implemented by many hardware sources and sinks. |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-libs-gstpropertyprobe.details"></a><h2>Details</h2> |
| <div class="refsect2"> |
| <a name="GstPropertyProbe-struct"></a><h3>GstPropertyProbe</h3> |
| <pre class="programlisting">typedef struct _GstPropertyProbe GstPropertyProbe;</pre> |
| <p> |
| Opaque <a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> data structure. |
| </p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstPropertyProbeInterface"></a><h3>struct GstPropertyProbeInterface</h3> |
| <pre class="programlisting">struct GstPropertyProbeInterface { |
| GTypeInterface klass; |
| |
| /* signals */ |
| void (*probe_needed) (GstPropertyProbe *probe, |
| const GParamSpec *pspec); |
| |
| /* virtual functions */ |
| const GList * (*get_properties) (GstPropertyProbe *probe); |
| gboolean (*needs_probe) (GstPropertyProbe *probe, |
| guint prop_id, |
| const GParamSpec *pspec); |
| void (*probe_property) (GstPropertyProbe *probe, |
| guint prop_id, |
| const GParamSpec *pspec); |
| GValueArray * (*get_values) (GstPropertyProbe *probe, |
| guint prop_id, |
| const GParamSpec *pspec); |
| }; |
| </pre> |
| <p> |
| <a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> interface. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><a href="http://library.gnome.org/devel/gobject/unstable/gobject-Type-Information.html#GTypeInterface"><span class="type">GTypeInterface</span></a> <em class="structfield"><code><a name="GstPropertyProbeInterface.klass"></a>klass</code></em>;</span></p></td> |
| <td>parent interface type.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="structfield"><code><a name="GstPropertyProbeInterface.probe-needed"></a>probe_needed</code></em> ()</span></p></td> |
| <td>default signal handler</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="structfield"><code><a name="GstPropertyProbeInterface.get-properties"></a>get_properties</code></em> ()</span></p></td> |
| <td>virtual method to get list of probable properties</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="structfield"><code><a name="GstPropertyProbeInterface.needs-probe"></a>needs_probe</code></em> ()</span></p></td> |
| <td>virtual method to tell if probe need update</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="structfield"><code><a name="GstPropertyProbeInterface.probe-property"></a>probe_property</code></em> ()</span></p></td> |
| <td>virtual method to probe a property</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="structfield"><code><a name="GstPropertyProbeInterface.get-values"></a>get_values</code></em> ()</span></p></td> |
| <td>virtual method to get probe results for a property</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-property-probe-get-properties"></a><h3>gst_property_probe_get_properties ()</h3> |
| <pre class="programlisting">const <a href="http://library.gnome.org/devel/glib/unstable/glib-Doubly-Linked-Lists.html#GList"><span class="returnvalue">GList</span></a> * gst_property_probe_get_properties (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> *probe</code></em>);</pre> |
| <p> |
| Get a list of properties for which probing is supported. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>probe</code></em> :</span></p></td> |
| <td>the <a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> to get the properties for.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td>the list of properties for which probing is supported |
| by this element.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-property-probe-get-property"></a><h3>gst_property_probe_get_property ()</h3> |
| <pre class="programlisting">const <a href="http://library.gnome.org/devel/gobject/unstable/gobject-GParamSpec.html#GParamSpec"><span class="returnvalue">GParamSpec</span></a> * gst_property_probe_get_property (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> *probe</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>);</pre> |
| <p> |
| Get <a href="http://library.gnome.org/devel/gobject/unstable/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> for a property for which probing is supported. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>probe</code></em> :</span></p></td> |
| <td>the <a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> to get the properties for.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td> |
| <td>name of the property.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td>the <a href="http://library.gnome.org/devel/gobject/unstable/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> of <a href="http://library.gnome.org/devel/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-property-probe-get-values"></a><h3>gst_property_probe_get_values ()</h3> |
| <pre class="programlisting"><a href="http://library.gnome.org/devel/gobject/unstable/gobject-Value-arrays.html#GValueArray"><span class="returnvalue">GValueArray</span></a> * gst_property_probe_get_values (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> *probe</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/gobject/unstable/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> *pspec</code></em>);</pre> |
| <p> |
| Gets the possible (probed) values for the given property, |
| requires the property to have been probed before. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>probe</code></em> :</span></p></td> |
| <td>the <a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> object.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>pspec</code></em> :</span></p></td> |
| <td>the <a href="http://library.gnome.org/devel/gobject/unstable/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> property identifier.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td>A list of valid values for the given property.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-property-probe-get-values-name"></a><h3>gst_property_probe_get_values_name ()</h3> |
| <pre class="programlisting"><a href="http://library.gnome.org/devel/gobject/unstable/gobject-Value-arrays.html#GValueArray"><span class="returnvalue">GValueArray</span></a> * gst_property_probe_get_values_name (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> *probe</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>);</pre> |
| <p> |
| Same as <a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#gst-property-probe-get-values" title="gst_property_probe_get_values ()"><code class="function">gst_property_probe_get_values()</code></a>. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>probe</code></em> :</span></p></td> |
| <td>the <a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> object.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td> |
| <td>the name of the property to get values for.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td>A list of valid values for the given property.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-property-probe-needs-probe"></a><h3>gst_property_probe_needs_probe ()</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_property_probe_needs_probe (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> *probe</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/gobject/unstable/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> *pspec</code></em>);</pre> |
| <p> |
| Checks whether a property needs a probe. This might be because |
| the property wasn't initialized before, or because host setup |
| changed. This might be, for example, because a new device was |
| added, and thus device probing needs to be refreshed to display |
| the new device. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>probe</code></em> :</span></p></td> |
| <td>the <a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> object to which the given property belongs.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>pspec</code></em> :</span></p></td> |
| <td>a <a href="http://library.gnome.org/devel/gobject/unstable/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> that identifies the property to check.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td>TRUE if the property needs a new probe, FALSE if not.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-property-probe-needs-probe-name"></a><h3>gst_property_probe_needs_probe_name ()</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_property_probe_needs_probe_name (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> *probe</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>);</pre> |
| <p> |
| Same as <a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#gst-property-probe-needs-probe" title="gst_property_probe_needs_probe ()"><code class="function">gst_property_probe_needs_probe()</code></a>. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>probe</code></em> :</span></p></td> |
| <td>the <a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> object to which the given property belongs.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td> |
| <td>the name of the property to check.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td>TRUE if the property needs a new probe, FALSE if not.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-property-probe-probe-and-get-values"></a><h3>gst_property_probe_probe_and_get_values ()</h3> |
| <pre class="programlisting"><a href="http://library.gnome.org/devel/gobject/unstable/gobject-Value-arrays.html#GValueArray"><span class="returnvalue">GValueArray</span></a> * gst_property_probe_probe_and_get_values |
| (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> *probe</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/gobject/unstable/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> *pspec</code></em>);</pre> |
| <p> |
| Check whether the given property requires a new probe. If so, |
| fo the probe. After that, retrieve a value list. Meant as a |
| utility function that wraps the above functions. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>probe</code></em> :</span></p></td> |
| <td>the <a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> object.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>pspec</code></em> :</span></p></td> |
| <td>The <a href="http://library.gnome.org/devel/gobject/unstable/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> property identifier.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td>the list of valid values for this property.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-property-probe-probe-and-get-values-name"></a><h3>gst_property_probe_probe_and_get_values_name ()</h3> |
| <pre class="programlisting"><a href="http://library.gnome.org/devel/gobject/unstable/gobject-Value-arrays.html#GValueArray"><span class="returnvalue">GValueArray</span></a> * gst_property_probe_probe_and_get_values_name |
| (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> *probe</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>);</pre> |
| <p> |
| Same as <a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#gst-property-probe-probe-and-get-values" title="gst_property_probe_probe_and_get_values ()"><code class="function">gst_property_probe_probe_and_get_values()</code></a>. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>probe</code></em> :</span></p></td> |
| <td>the <a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> object.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td> |
| <td>the name of the property to get values for.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td> |
| <td>the list of valid values for this property.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-property-probe-probe-property"></a><h3>gst_property_probe_probe_property ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> gst_property_probe_probe_property (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> *probe</code></em>, |
| <em class="parameter"><code>const <a href="http://library.gnome.org/devel/gobject/unstable/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> *pspec</code></em>);</pre> |
| <p> |
| Runs a probe on the property specified by <em class="parameter"><code>pspec</code></em> |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>probe</code></em> :</span></p></td> |
| <td>the <a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> to check.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>pspec</code></em> :</span></p></td> |
| <td> |
| <a href="http://library.gnome.org/devel/gobject/unstable/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> of the property.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="gst-property-probe-probe-property-name"></a><h3>gst_property_probe_probe_property_name ()</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> gst_property_probe_probe_property_name |
| (<em class="parameter"><code><a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> *probe</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>);</pre> |
| <p> |
| Runs a probe on the property specified by <em class="parameter"><code>name</code></em>. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>probe</code></em> :</span></p></td> |
| <td>the <a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> to check.</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>name</code></em> :</span></p></td> |
| <td>name of the property.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-libs-gstpropertyprobe.signal-details"></a><h2>Signal Details</h2> |
| <div class="refsect2"> |
| <a name="GstPropertyProbe-probe-needed"></a><h3>The <code class="literal">"probe-needed"</code> signal</h3> |
| <pre class="programlisting"><span class="returnvalue">void</span> user_function (<a class="link" href="gst-plugins-base-libs-gstpropertyprobe.html#GstPropertyProbe"><span class="type">GstPropertyProbe</span></a> *pspec, |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> arg1, |
| <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data) : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">Run Last</code></a></pre> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>pspec</code></em> :</span></p></td> |
| <td> |
| <a href="http://library.gnome.org/devel/gobject/unstable/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> that needs a probe</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td> |
| <td>user data set when the signal handler was connected.</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| </div> |
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