docs/libs/html/GstInterpolationControlSource.html


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<h2><span class="refentrytitle"><a name="GstInterpolationControlSource.top_of_page"></a>GstInterpolationControlSource</span></h2>
<p>GstInterpolationControlSource — interpolation control source</p>
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<a name="GstInterpolationControlSource.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">
#include &lt;libs/controller/gstinterpolationcontrolsource.h&gt;

struct              <a class="link" href="GstInterpolationControlSource.html#GstInterpolationControlSource-struct" title="struct GstInterpolationControlSource">GstInterpolationControlSource</a>;
enum                <a class="link" href="GstInterpolationControlSource.html#GstInterpolationMode" title="enum GstInterpolationMode">GstInterpolationMode</a>;
<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstControlSource.html"><span class="returnvalue">GstControlSource</span></a> *  <a class="link" href="GstInterpolationControlSource.html#gst-interpolation-control-source-new" title="gst_interpolation_control_source_new ()">gst_interpolation_control_source_new</a>
                                                        (<em class="parameter"><code><span class="type">void</span></code></em>);
</pre>
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<div class="refsect1">
<a name="GstInterpolationControlSource.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="synopsis">
  <a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GObject">GObject</a>
   +----<a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
         +----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstObject.html">GstObject</a>
               +----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstControlSource.html">GstControlSource</a>
                     +----<a class="link" href="GstTimedValueControlSource.html" title="GstTimedValueControlSource">GstTimedValueControlSource</a>
                           +----GstInterpolationControlSource
</pre>
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<div class="refsect1">
<a name="GstInterpolationControlSource.properties"></a><h2>Properties</h2>
<pre class="synopsis">
  "<a class="link" href="GstInterpolationControlSource.html#GstInterpolationControlSource--mode" title='The "mode" property'>mode</a>"                     <a class="link" href="GstInterpolationControlSource.html#GstInterpolationMode" title="enum GstInterpolationMode"><span class="type">GstInterpolationMode</span></a>  : Read / Write
</pre>
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<div class="refsect1">
<a name="GstInterpolationControlSource.description"></a><h2>Description</h2>
<p>
<a class="link" href="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a> is a <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstControlSource.html"><span class="type">GstControlSource</span></a>, that interpolates values between user-given
control points. It supports several interpolation modes and property types.
</p>
<p>
To use <a class="link" href="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a> get a new instance by calling
<a class="link" href="GstInterpolationControlSource.html#gst-interpolation-control-source-new" title="gst_interpolation_control_source_new ()"><code class="function">gst_interpolation_control_source_new()</code></a>, bind it to a <a href="http://library.gnome.org/devel/gobject/unstable/gobject-GParamSpec.html#GParamSpec"><span class="type">GParamSpec</span></a> and set some
control points by calling <a class="link" href="GstTimedValueControlSource.html#gst-timed-value-control-source-set" title="gst_timed_value_control_source_set ()"><code class="function">gst_timed_value_control_source_set()</code></a>.
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<p>
All functions are MT-safe.
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<a name="GstInterpolationControlSource.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="GstInterpolationControlSource-struct"></a><h3>struct GstInterpolationControlSource</h3>
<pre class="programlisting">struct GstInterpolationControlSource;</pre>
<p>
The instance structure of <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstControlSource.html"><span class="type">GstControlSource</span></a>.
</p>
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<div class="refsect2">
<a name="GstInterpolationMode"></a><h3>enum GstInterpolationMode</h3>
<pre class="programlisting">typedef enum {
  GST_INTERPOLATION_MODE_NONE,
  GST_INTERPOLATION_MODE_LINEAR,
  GST_INTERPOLATION_MODE_CUBIC
} GstInterpolationMode;
</pre>
<p>
The various interpolation modes available.
</p>
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<td><p><a name="GST-INTERPOLATION-MODE-NONE:CAPS"></a><span class="term"><code class="literal">GST_INTERPOLATION_MODE_NONE</code></span></p></td>
<td>steps-like interpolation, default
</td>
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<tr>
<td><p><a name="GST-INTERPOLATION-MODE-LINEAR:CAPS"></a><span class="term"><code class="literal">GST_INTERPOLATION_MODE_LINEAR</code></span></p></td>
<td>linear interpolation
</td>
</tr>
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<td><p><a name="GST-INTERPOLATION-MODE-CUBIC:CAPS"></a><span class="term"><code class="literal">GST_INTERPOLATION_MODE_CUBIC</code></span></p></td>
<td>cubic interpolation
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<div class="refsect2">
<a name="gst-interpolation-control-source-new"></a><h3>gst_interpolation_control_source_new ()</h3>
<pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstControlSource.html"><span class="returnvalue">GstControlSource</span></a> *  gst_interpolation_control_source_new
                                                        (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>
This returns a new, unbound <a class="link" href="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a>.
</p>
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<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>a new, unbound <a class="link" href="GstInterpolationControlSource.html" title="GstInterpolationControlSource"><span class="type">GstInterpolationControlSource</span></a>. <span class="annotation">[<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span>
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<div class="refsect1">
<a name="GstInterpolationControlSource.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GstInterpolationControlSource--mode"></a><h3>The <code class="literal">"mode"</code> property</h3>
<pre class="programlisting">  "mode"                     <a class="link" href="GstInterpolationControlSource.html#GstInterpolationMode" title="enum GstInterpolationMode"><span class="type">GstInterpolationMode</span></a>  : Read / Write</pre>
<p>Interpolation mode.</p>
<p>Default value: GST_INTERPOLATION_MODE_NONE</p>
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