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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
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<title>motioncells: GStreamer Bad Plugins 1.0 Plugins Reference Manual</title>
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<div class="refentry">
<a name="gst-plugins-bad-plugins-motioncells"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="gst-plugins-bad-plugins-motioncells.top_of_page"></a>motioncells</span></h2>
<p>motioncells</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="gst-plugins-bad-plugins-motioncells.properties"></a><h2>Properties</h2>
<div class="informaltable"><table class="informaltable" border="0">
<colgroup>
<col width="150px" class="properties_type">
<col width="300px" class="properties_name">
<col width="200px" class="properties_flags">
</colgroup>
<tbody>
<tr>
<td class="property_type"><a href="../glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-bad-plugins-motioncells.html#GstMotioncells--calculatemotion" title="The “calculatemotion” property">calculatemotion</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type">
<a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</td>
<td class="property_name"><a class="link" href="gst-plugins-bad-plugins-motioncells.html#GstMotioncells--cellscolor" title="The “cellscolor” property">cellscolor</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type">
<a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</td>
<td class="property_name"><a class="link" href="gst-plugins-bad-plugins-motioncells.html#GstMotioncells--datafile" title="The “datafile” property">datafile</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type">
<a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</td>
<td class="property_name"><a class="link" href="gst-plugins-bad-plugins-motioncells.html#GstMotioncells--datafileextension" title="The “datafileextension” property">datafileextension</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="../glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-bad-plugins-motioncells.html#GstMotioncells--display" title="The “display” property">display</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="../glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-bad-plugins-motioncells.html#GstMotioncells--gap" title="The “gap” property">gap</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="../glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-bad-plugins-motioncells.html#GstMotioncells--gridx" title="The “gridx” property">gridx</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="../glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-bad-plugins-motioncells.html#GstMotioncells--gridy" title="The “gridy” property">gridy</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="../glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-bad-plugins-motioncells.html#GstMotioncells--minimummotionframes" title="The “minimummotionframes” property">minimummotionframes</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type">
<a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</td>
<td class="property_name"><a class="link" href="gst-plugins-bad-plugins-motioncells.html#GstMotioncells--motioncellsidx" title="The “motioncellsidx” property">motioncellsidx</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="../glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-bad-plugins-motioncells.html#GstMotioncells--motioncellthickness" title="The “motioncellthickness” property">motioncellthickness</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type">
<a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</td>
<td class="property_name"><a class="link" href="gst-plugins-bad-plugins-motioncells.html#GstMotioncells--motionmaskcellspos" title="The “motionmaskcellspos” property">motionmaskcellspos</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type">
<a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</td>
<td class="property_name"><a class="link" href="gst-plugins-bad-plugins-motioncells.html#GstMotioncells--motionmaskcoords" title="The “motionmaskcoords” property">motionmaskcoords</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="../glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-bad-plugins-motioncells.html#GstMotioncells--postallmotion" title="The “postallmotion” property">postallmotion</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="../glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-bad-plugins-motioncells.html#GstMotioncells--postnomotion" title="The “postnomotion” property">postnomotion</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-bad-plugins-motioncells.html#GstMotioncells--sensitivity" title="The “sensitivity” property">sensitivity</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-bad-plugins-motioncells.html#GstMotioncells--threshold" title="The “threshold” property">threshold</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="../glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-bad-plugins-motioncells.html#GstMotioncells--usealpha" title="The “usealpha” property">usealpha</a></td>
<td class="property_flags">Read / Write</td>
</tr>
</tbody>
</table></div>
</div>
<a name="GstMotioncells"></a><div class="refsect1">
<a name="gst-plugins-bad-plugins-motioncells.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" 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="gst-plugins-bad-plugins-motioncells.html#GstMotioncells-struct" title="struct GstMotioncells">GstMotioncells</a></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gst-plugins-bad-plugins-motioncells.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen">    <a href="../gobject/gobject-The-Base-Object-Type.html#GObject-struct">GObject</a>
    <span class="lineart">╰──</span> <a href="../gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
        <span class="lineart">╰──</span> <a href="../gstreamer-1.0/GstObject.html#GstObject-struct">GstObject</a>
            <span class="lineart">╰──</span> <a href="../gstreamer-1.0/GstElement.html#GstElement-struct">GstElement</a>
                <span class="lineart">╰──</span> <a href="../gstreamer-libs-1.0/GstBaseTransform.html#GstBaseTransform-struct">GstBaseTransform</a>
                    <span class="lineart">╰──</span> <a href="../gst-plugins-base-libs-1.0/GstVideoFilter.html#GstVideoFilter-struct">GstVideoFilter</a>
                        <span class="lineart">╰──</span> GstOpencvVideoFilter
                            <span class="lineart">╰──</span> GstMotioncells
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-bad-plugins-motioncells.description"></a><h2>Description</h2>
<p>Performs motion detection on videos.</p>
<div class="refsect2">
<a name="id-1.2.147.7.3"></a><h3>Example launch line</h3>
<div class="informalexample">
  <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
    <tbody>
      <tr>
        <td class="listing_lines" align="right"><pre>1</pre></td>
        <td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch<span class="gtkdoc opt">-</span><span class="number">1.0</span> videotestsrc pattern<span class="gtkdoc opt">=</span><span class="number">18</span> <span class="gtkdoc opt">!</span> videorate <span class="gtkdoc opt">!</span> videoscale <span class="gtkdoc opt">!</span> video<span class="gtkdoc opt">/</span>x<span class="gtkdoc opt">-</span>raw<span class="gtkdoc opt">,</span>width<span class="gtkdoc opt">=</span><span class="number">320</span><span class="gtkdoc opt">,</span>height<span class="gtkdoc opt">=</span><span class="number">240</span><span class="gtkdoc opt">,</span>framerate<span class="gtkdoc opt">=</span><span class="number">5</span><span class="gtkdoc opt">/</span><span class="number">1</span> <span class="gtkdoc opt">!</span> videoconvert <span class="gtkdoc opt">!</span> motioncells <span class="gtkdoc opt">!</span> videoconvert <span class="gtkdoc opt">!</span> xvimagesink</pre></td>
      </tr>
    </tbody>
  </table>
</div>

</div>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<div class="refsect2">
<a name="id-1.2.147.7.4.1"></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-bad-plugins-plugin-opencv.html#plugin-opencv">opencv</a>
          </td>
</tr>
<tr>
<td><p><span class="term">author</span></p></td>
<td>Robert Jobbagy &lt;jobbagy dot robert at gmail dot com&gt;, Nicola Murino &lt;nicola dot murino at gmail.com&gt;</td>
</tr>
<tr>
<td><p><span class="term">class</span></p></td>
<td>Filter/Effect/Video</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="id-1.2.147.7.4.2"></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>video/x-raw, format=(string)RGB, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td>
</tr>
</tbody>
</table></div>
<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>src</td>
</tr>
<tr>
<td><p><span class="term">direction</span></p></td>
<td>source</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>video/x-raw, format=(string)RGB, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-bad-plugins-motioncells.functions_details"></a><h2>Functions</h2>
<p></p>
</div>
<div class="refsect1">
<a name="gst-plugins-bad-plugins-motioncells.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GstMotioncells-struct"></a><h3>struct GstMotioncells</h3>
<pre class="programlisting">struct GstMotioncells;</pre>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-bad-plugins-motioncells.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GstMotioncells--calculatemotion"></a><h3>The <code class="literal">“calculatemotion”</code> property</h3>
<pre class="programlisting">  “calculatemotion”          <a href="../glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>Toggles motion calculation. If FALSE, this filter does nothing.</p>
<p>Flags: Read / Write</p>
<p>Default value: TRUE</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMotioncells--cellscolor"></a><h3>The <code class="literal">“cellscolor”</code> property</h3>
<pre class="programlisting">  “cellscolor”               <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</pre>
<p>Color for motion cells in R,G,B format. Max per channel is 255.</p>
<p>Flags: Read / Write</p>
<p>Default value: "255,255,0"</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMotioncells--datafile"></a><h3>The <code class="literal">“datafile”</code> property</h3>
<pre class="programlisting">  “datafile”                 <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</pre>
<p>Location of motioncells data file (empty string means no saving).</p>
<p>Flags: Read / Write</p>
<p>Default value: NULL</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMotioncells--datafileextension"></a><h3>The <code class="literal">“datafileextension”</code> property</h3>
<pre class="programlisting">  “datafileextension”        <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</pre>
<p>Extension of datafile.</p>
<p>Flags: Read / Write</p>
<p>Default value: "vamc"</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMotioncells--display"></a><h3>The <code class="literal">“display”</code> property</h3>
<pre class="programlisting">  “display”                  <a href="../glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>Toggle display of motion cells on current frame.</p>
<p>Flags: Read / Write</p>
<p>Default value: FALSE</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMotioncells--gap"></a><h3>The <code class="literal">“gap”</code> property</h3>
<pre class="programlisting">  “gap”                      <a href="../glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Interval in seconds after which motion is considered finished and a motion finished bus message is posted.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [1,60]</p>
<p>Default value: 5</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMotioncells--gridx"></a><h3>The <code class="literal">“gridx”</code> property</h3>
<pre class="programlisting">  “gridx”                    <a href="../glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Number of horizontal grid cells.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [8,32]</p>
<p>Default value: 10</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMotioncells--gridy"></a><h3>The <code class="literal">“gridy”</code> property</h3>
<pre class="programlisting">  “gridy”                    <a href="../glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Number of vertical grid cells.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [8,32]</p>
<p>Default value: 10</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMotioncells--minimummotionframes"></a><h3>The <code class="literal">“minimummotionframes”</code> property</h3>
<pre class="programlisting">  “minimummotionframes”      <a href="../glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Minimum number of motion frames triggering a motion event.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [1,60]</p>
<p>Default value: 1</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMotioncells--motioncellsidx"></a><h3>The <code class="literal">“motioncellsidx”</code> property</h3>
<pre class="programlisting">  “motioncellsidx”           <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</pre>
<p>Describe a cell with its line and column idx separated with ":". Pass multiple cells as a comma-separated list.</p>
<p>Flags: Read / Write</p>
<p>Default value: NULL</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMotioncells--motioncellthickness"></a><h3>The <code class="literal">“motioncellthickness”</code> property</h3>
<pre class="programlisting">  “motioncellthickness”      <a href="../glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Motion Cell Border Thickness. Set to -1 to fill motion cell.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [G_MAXULONG,5]</p>
<p>Default value: 1</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMotioncells--motionmaskcellspos"></a><h3>The <code class="literal">“motionmaskcellspos”</code> property</h3>
<pre class="programlisting">  “motionmaskcellspos”       <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</pre>
<p>Describe a cell with its line and column idx separated with ":". Pass multiple cells as a comma-separated list.</p>
<p>Flags: Read / Write</p>
<p>Default value: NULL</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMotioncells--motionmaskcoords"></a><h3>The <code class="literal">“motionmaskcoords”</code> property</h3>
<pre class="programlisting">  “motionmaskcoords”         <a href="../glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</pre>
<p>Describe a region with its upper left and lower right x, y coordinates separated with ":". Pass multiple regions as a comma-separated list.</p>
<p>Flags: Read / Write</p>
<p>Default value: NULL</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMotioncells--postallmotion"></a><h3>The <code class="literal">“postallmotion”</code> property</h3>
<pre class="programlisting">  “postallmotion”            <a href="../glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>Post bus messages for every motion frame or just motion start and motion stop.</p>
<p>Flags: Read / Write</p>
<p>Default value: FALSE</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMotioncells--postnomotion"></a><h3>The <code class="literal">“postnomotion”</code> property</h3>
<pre class="programlisting">  “postnomotion”             <a href="../glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>If non 0, post a no_motion event on the bus if no motion is detected for the given number of seconds.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [0,180]</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMotioncells--sensitivity"></a><h3>The <code class="literal">“sensitivity”</code> property</h3>
<pre class="programlisting">  “sensitivity”              <a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a></pre>
<p>Motion detection sensitivity.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [0,1]</p>
<p>Default value: 0.5</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMotioncells--threshold"></a><h3>The <code class="literal">“threshold”</code> property</h3>
<pre class="programlisting">  “threshold”                <a href="../glib/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a></pre>
<p>Threshold value for motion. Filter detects motion when at least this fraction of the cells have moved.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [0,1]</p>
<p>Default value: 0.01</p>
</div>
<hr>
<div class="refsect2">
<a name="GstMotioncells--usealpha"></a><h3>The <code class="literal">“usealpha”</code> property</h3>
<pre class="programlisting">  “usealpha”                 <a href="../glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>Toggle usage of alpha blending on frames with motion cells.</p>
<p>Flags: Read / Write</p>
<p>Default value: TRUE</p>
</div>
</div>
</div>
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