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<h2><span class="refentrytitle"><a name="GstControlSource.top_of_page"></a>GstControlSource</span></h2>
<p>GstControlSource</p>
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<div class="refsect1">
<a name="GstControlSource.functions"></a><h2>Functions</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
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<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
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<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="GstControlSource.html#GstControlSourceGetValue" title="GstControlSourceGetValue ()">*GstControlSourceGetValue</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
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<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
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<td class="function_name">
<span class="c_punctuation">(</span><a class="link" href="GstControlSource.html#GstControlSourceGetValueArray" title="GstControlSourceGetValueArray ()">*GstControlSourceGetValueArray</a><span class="c_punctuation">)</span> <span class="c_punctuation">()</span>
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<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
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<td class="function_name">
<a class="link" href="GstControlSource.html#gst-control-source-get-value" title="gst_control_source_get_value ()">gst_control_source_get_value</a> <span class="c_punctuation">()</span>
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<td class="function_type">
<a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
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<td class="function_name">
<a class="link" href="GstControlSource.html#gst-control-source-get-value-array" title="gst_control_source_get_value_array ()">gst_control_source_get_value_array</a> <span class="c_punctuation">()</span>
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<a name="GstControlSource.other"></a><h2>Types and Values</h2>
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<col width="150px" class="name">
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<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="GstControlSource.html#GstValueArray" title="GstValueArray">GstValueArray</a></td>
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<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="GstControlSource.html#GstControlSource-struct" title="struct GstControlSource">GstControlSource</a></td>
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<tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="GstControlSource.html#GstControlSourceClass" title="struct GstControlSourceClass">GstControlSourceClass</a></td>
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<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="GstControlSource.html#GstTimedValue" title="struct GstTimedValue">GstTimedValue</a></td>
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<div class="refsect1">
<a name="GstControlSource.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen"> <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct">GObject</a>
<span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
<span class="lineart">╰──</span> <a class="link" href="GstObject.html" title="GstObject">GstObject</a>
<span class="lineart">╰──</span> GstControlSource
</pre>
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<div class="refsect1">
<a name="GstControlSource.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include &lt;gst/gst.h&gt;
</pre>
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<div class="refsect1">
<a name="GstControlSource.description"></a><h2>Description</h2>
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<div class="refsect1">
<a name="GstControlSource.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="GstControlSourceGetValue"></a><h3>GstControlSourceGetValue ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
<span class="c_punctuation">(</span>*GstControlSourceGetValue<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> *self</code></em>,
<em class="parameter"><code><a class="link" href="GstClock.html#GstClockTime" title="GstClockTime"><span class="type">GstClockTime</span></a> timestamp</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> *value</code></em>);</pre>
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<hr>
<div class="refsect2">
<a name="GstControlSourceGetValueArray"></a><h3>GstControlSourceGetValueArray ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
<span class="c_punctuation">(</span>*GstControlSourceGetValueArray<span class="c_punctuation">)</span> (<em class="parameter"><code><a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> *self</code></em>,
<em class="parameter"><code><a class="link" href="GstClock.html#GstClockTime" title="GstClockTime"><span class="type">GstClockTime</span></a> timestamp</code></em>,
<em class="parameter"><code><a class="link" href="GstClock.html#GstClockTime" title="GstClockTime"><span class="type">GstClockTime</span></a> interval</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#guint"><span class="type">guint</span></a> n_values</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> *values</code></em>);</pre>
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<hr>
<div class="refsect2">
<a name="gst-control-source-get-value"></a><h3>gst_control_source_get_value ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_control_source_get_value (<em class="parameter"><code><a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> *self</code></em>,
<em class="parameter"><code><a class="link" href="GstClock.html#GstClockTime" title="GstClockTime"><span class="type">GstClockTime</span></a> timestamp</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> *value</code></em>);</pre>
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<hr>
<div class="refsect2">
<a name="gst-control-source-get-value-array"></a><h3>gst_control_source_get_value_array ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gboolean"><span class="returnvalue">gboolean</span></a>
gst_control_source_get_value_array (<em class="parameter"><code><a class="link" href="GstControlSource.html" title="GstControlSource"><span class="type">GstControlSource</span></a> *self</code></em>,
<em class="parameter"><code><a class="link" href="GstClock.html#GstClockTime" title="GstClockTime"><span class="type">GstClockTime</span></a> timestamp</code></em>,
<em class="parameter"><code><a class="link" href="GstClock.html#GstClockTime" title="GstClockTime"><span class="type">GstClockTime</span></a> interval</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#guint"><span class="type">guint</span></a> n_values</code></em>,
<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glibglib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a> *values</code></em>);</pre>
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</div>
<div class="refsect1">
<a name="GstControlSource.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GstValueArray"></a><h3>GstValueArray</h3>
<pre class="programlisting">typedef struct _GstValueArray GstValueArray;</pre>
</div>
<hr>
<div class="refsect2">
<a name="GstControlSource-struct"></a><h3>struct GstControlSource</h3>
<pre class="programlisting">struct GstControlSource {
GstControlSourceGetValue get_value; /* Returns the value for a property at a given timestamp */
GstControlSourceGetValueArray get_value_array; /* Returns values for a property in a given timespan */
};
</pre>
</div>
<hr>
<div class="refsect2">
<a name="GstControlSourceClass"></a><h3>struct GstControlSourceClass</h3>
<pre class="programlisting">struct GstControlSourceClass {
GstObjectClass parent_class;
};
</pre>
</div>
<hr>
<div class="refsect2">
<a name="GstTimedValue"></a><h3>struct GstTimedValue</h3>
<pre class="programlisting">struct GstTimedValue {
GstClockTime timestamp;
gdouble value;
};
</pre>
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