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<a href="#gst-plugins-base-plugins-appsink.synopsis" class="shortcut">Top</a>
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<a href="#gst-plugins-base-plugins-appsink.description" class="shortcut">Description</a>
 | 
<a href="#gst-plugins-base-plugins-appsink.object-hierarchy" class="shortcut">Object Hierarchy</a>
 | 
<a href="#gst-plugins-base-plugins-appsink.implemented-interfaces" class="shortcut">Implemented Interfaces</a>
 | 
<a href="#gst-plugins-base-plugins-appsink.properties" class="shortcut">Properties</a>
 | 
<a href="#gst-plugins-base-plugins-appsink.signals" class="shortcut">Signals</a>
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<div class="refentry">
<a name="gst-plugins-base-plugins-appsink"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="gst-plugins-base-plugins-appsink.top_of_page"></a>appsink</span></h2>
<p>appsink — Allow the application to get access to raw buffer</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv">
<a name="gst-plugins-base-plugins-appsink.synopsis"></a><h2>Synopsis</h2>
<a name="GstAppSink"></a><pre class="synopsis">struct <a class="link" href="gst-plugins-base-plugins-appsink.html#GstAppSink-struct" title="struct GstAppSink">GstAppSink</a>;
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-appsink.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/GstElement.html">GstElement</a>
+----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer-libs/html/GstBaseSink.html">GstBaseSink</a>
+----GstAppSink
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-appsink.implemented-interfaces"></a><h2>Implemented Interfaces</h2>
<p>
GstAppSink implements
<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstUriHandler.html#GstURIHandler">GstURIHandler</a>.</p>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-appsink.properties"></a><h2>Properties</h2>
<pre class="synopsis">
"<a class="link" href="gst-plugins-base-plugins-appsink.html#GstAppSink--caps" title='The "caps" property'>caps</a>" <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstCaps.html#GstCaps"><span class="type">GstCaps</span></a>* : Read / Write
"<a class="link" href="gst-plugins-base-plugins-appsink.html#GstAppSink--drop" title='The "drop" property'>drop</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write
"<a class="link" href="gst-plugins-base-plugins-appsink.html#GstAppSink--emit-signals" title='The "emit-signals" property'>emit-signals</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write
"<a class="link" href="gst-plugins-base-plugins-appsink.html#GstAppSink--eos" title='The "eos" property'>eos</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read
"<a class="link" href="gst-plugins-base-plugins-appsink.html#GstAppSink--max-buffers" title='The "max-buffers" property'>max-buffers</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> : Read / Write
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-appsink.signals"></a><h2>Signals</h2>
<pre class="synopsis">
"<a class="link" href="gst-plugins-base-plugins-appsink.html#GstAppSink-eos" title='The "eos" signal'>eos</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>
"<a class="link" href="gst-plugins-base-plugins-appsink.html#GstAppSink-new-buffer" title='The "new-buffer" signal'>new-buffer</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>
"<a class="link" href="gst-plugins-base-plugins-appsink.html#GstAppSink-new-preroll" title='The "new-preroll" signal'>new-preroll</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>
"<a class="link" href="gst-plugins-base-plugins-appsink.html#GstAppSink-pull-buffer" title='The "pull-buffer" signal'>pull-buffer</a>" : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-ACTION:CAPS"><code class="literal">Action</code></a>
"<a class="link" href="gst-plugins-base-plugins-appsink.html#GstAppSink-pull-preroll" title='The "pull-preroll" signal'>pull-preroll</a>" : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-ACTION:CAPS"><code class="literal">Action</code></a>
"<a class="link" href="gst-plugins-base-plugins-appsink.html#GstAppSink-new-buffer-list" title='The "new-buffer-list" signal'>new-buffer-list</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>
"<a class="link" href="gst-plugins-base-plugins-appsink.html#GstAppSink-pull-buffer-list" title='The "pull-buffer-list" signal'>pull-buffer-list</a>" : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-ACTION:CAPS"><code class="literal">Action</code></a>
"<a class="link" href="gst-plugins-base-plugins-appsink.html#GstAppSink-new-sample" title='The "new-sample" signal'>new-sample</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>
"<a class="link" href="gst-plugins-base-plugins-appsink.html#GstAppSink-pull-sample" title='The "pull-sample" signal'>pull-sample</a>" : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-ACTION:CAPS"><code class="literal">Action</code></a>
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-appsink.description"></a><h2>Description</h2>
<p>
Appsink is a sink plugin that supports many different methods for making
the application get a handle on the GStreamer data in a pipeline. Unlike
most GStreamer elements, Appsink provides external API functions.
</p>
<p>
For the documentation of the API, please see the
<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-appsink.html">libgstapp</a> section in
the GStreamer Plugins Base Libraries documentation.
</p>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<div class="refsect2">
<a name="id-1.2.4.8.4.1"></a><h3>Element Information</h3>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">plugin</span></p></td>
<td>
<a class="link" href="gst-plugins-base-plugins-plugin-app.html#plugin-app">app</a>
</td>
</tr>
<tr>
<td><p><span class="term">author</span></p></td>
<td>David Schleef &lt;ds@schleef.org&gt;, Wim Taymans &lt;wim.taymans@gmail.com&gt;</td>
</tr>
<tr>
<td><p><span class="term">class</span></p></td>
<td>Generic/Sink</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="id-1.2.4.8.4.2"></a><h3>Element Pads</h3>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">name</span></p></td>
<td>sink</td>
</tr>
<tr>
<td><p><span class="term">direction</span></p></td>
<td>sink</td>
</tr>
<tr>
<td><p><span class="term">presence</span></p></td>
<td>always</td>
</tr>
<tr>
<td><p><span class="term">details</span></p></td>
<td>ANY</td>
</tr>
</tbody>
</table></div>
</div>
</div>
<p>
</p>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-appsink.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="GstAppSink-struct"></a><h3>struct GstAppSink</h3>
<pre class="programlisting">struct GstAppSink;</pre>
<p>
</p>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-appsink.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GstAppSink--caps"></a><h3>The <code class="literal">"caps"</code> property</h3>
<pre class="programlisting"> "caps" <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstCaps.html#GstCaps"><span class="type">GstCaps</span></a>* : Read / Write</pre>
<p>The allowed caps for the sink pad.</p>
</div>
<hr>
<div class="refsect2">
<a name="GstAppSink--drop"></a><h3>The <code class="literal">"drop"</code> property</h3>
<pre class="programlisting"> "drop" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write</pre>
<p>Drop old buffers when the buffer queue is filled.</p>
<p>Default value: FALSE</p>
</div>
<hr>
<div class="refsect2">
<a name="GstAppSink--emit-signals"></a><h3>The <code class="literal">"emit-signals"</code> property</h3>
<pre class="programlisting"> "emit-signals" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write</pre>
<p>Emit new-preroll and new-sample signals.</p>
<p>Default value: FALSE</p>
</div>
<hr>
<div class="refsect2">
<a name="GstAppSink--eos"></a><h3>The <code class="literal">"eos"</code> property</h3>
<pre class="programlisting"> "eos" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read</pre>
<p>Check if the sink is EOS or not started.</p>
<p>Default value: TRUE</p>
</div>
<hr>
<div class="refsect2">
<a name="GstAppSink--max-buffers"></a><h3>The <code class="literal">"max-buffers"</code> property</h3>
<pre class="programlisting"> "max-buffers" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a> : Read / Write</pre>
<p>The maximum number of buffers to queue internally (0 = unlimited).</p>
<p>Default value: 0</p>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-appsink.signal-details"></a><h2>Signal Details</h2>
<div class="refsect2">
<a name="GstAppSink-eos"></a><h3>The <code class="literal">"eos"</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span> user_function (<a class="link" href="gst-plugins-base-plugins-appsink.html#GstAppSink"><span class="type">GstAppSink</span></a> *gstappsink,
<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>
<p>
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>gstappsink</code></em> :</span></p></td>
<td>the object which received the signal.</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>
<hr>
<div class="refsect2">
<a name="GstAppSink-new-buffer"></a><h3>The <code class="literal">"new-buffer"</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span> user_function (<a class="link" href="gst-plugins-base-plugins-appsink.html#GstAppSink"><span class="type">GstAppSink</span></a> *gstappsink,
<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>
<p>
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>gstappsink</code></em> :</span></p></td>
<td>the object which received the signal.</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>
<hr>
<div class="refsect2">
<a name="GstAppSink-new-preroll"></a><h3>The <code class="literal">"new-preroll"</code> signal</h3>
<pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GstFlowReturn"><span class="returnvalue">GstFlowReturn</span></a> user_function (<a class="link" href="gst-plugins-base-plugins-appsink.html#GstAppSink"><span class="type">GstAppSink</span></a> *gstappsink,
<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>
<p>
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>gstappsink</code></em> :</span></p></td>
<td>the object which received the signal.</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>
<hr>
<div class="refsect2">
<a name="GstAppSink-pull-buffer"></a><h3>The <code class="literal">"pull-buffer"</code> signal</h3>
<pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBuffer.html#GstBuffer"><span class="returnvalue">GstBuffer</span></a>* user_function (<a class="link" href="gst-plugins-base-plugins-appsink.html#GstAppSink"><span class="type">GstAppSink</span></a> *gstappsink,
<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-ACTION:CAPS"><code class="literal">Action</code></a></pre>
<p>
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>gstappsink</code></em> :</span></p></td>
<td>the object which received the signal.</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>
<hr>
<div class="refsect2">
<a name="GstAppSink-pull-preroll"></a><h3>The <code class="literal">"pull-preroll"</code> signal</h3>
<pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstSample.html#GstSample"><span class="returnvalue">GstSample</span></a>* user_function (<a class="link" href="gst-plugins-base-plugins-appsink.html#GstAppSink"><span class="type">GstAppSink</span></a> *gstappsink,
<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-ACTION:CAPS"><code class="literal">Action</code></a></pre>
<p>
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>gstappsink</code></em> :</span></p></td>
<td>the object which received the signal.</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>
<hr>
<div class="refsect2">
<a name="GstAppSink-new-buffer-list"></a><h3>The <code class="literal">"new-buffer-list"</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span> user_function (<a class="link" href="gst-plugins-base-plugins-appsink.html#GstAppSink"><span class="type">GstAppSink</span></a> *gstappsink,
<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>
<p>
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>gstappsink</code></em> :</span></p></td>
<td>the object which received the signal.</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>
<hr>
<div class="refsect2">
<a name="GstAppSink-pull-buffer-list"></a><h3>The <code class="literal">"pull-buffer-list"</code> signal</h3>
<pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstBufferList.html#GstBufferList"><span class="returnvalue">GstBufferList</span></a>* user_function (<a class="link" href="gst-plugins-base-plugins-appsink.html#GstAppSink"><span class="type">GstAppSink</span></a> *gstappsink,
<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-ACTION:CAPS"><code class="literal">Action</code></a></pre>
<p>
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>gstappsink</code></em> :</span></p></td>
<td>the object which received the signal.</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>
<hr>
<div class="refsect2">
<a name="GstAppSink-new-sample"></a><h3>The <code class="literal">"new-sample"</code> signal</h3>
<pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html#GstFlowReturn"><span class="returnvalue">GstFlowReturn</span></a> user_function (<a class="link" href="gst-plugins-base-plugins-appsink.html#GstAppSink"><span class="type">GstAppSink</span></a> *gstappsink,
<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>
<p>
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>gstappsink</code></em> :</span></p></td>
<td>the object which received the signal.</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>
<hr>
<div class="refsect2">
<a name="GstAppSink-pull-sample"></a><h3>The <code class="literal">"pull-sample"</code> signal</h3>
<pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstSample.html#GstSample"><span class="returnvalue">GstSample</span></a>* user_function (<a class="link" href="gst-plugins-base-plugins-appsink.html#GstAppSink"><span class="type">GstAppSink</span></a> *gstappsink,
<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-ACTION:CAPS"><code class="literal">Action</code></a></pre>
<p>
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>gstappsink</code></em> :</span></p></td>
<td>the object which received the signal.</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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