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<a href="#gst-plugins-bad-plugins-videomark.synopsis" class="shortcut">Top</a>
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                  <a href="#gst-plugins-bad-plugins-videomark.description" class="shortcut">Description</a>
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                  <a href="#gst-plugins-bad-plugins-videomark.object-hierarchy" class="shortcut">Object Hierarchy</a>
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                  <a href="#gst-plugins-bad-plugins-videomark.properties" class="shortcut">Properties</a>
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<div class="refentry">
<a name="gst-plugins-bad-plugins-videomark"></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-videomark.top_of_page"></a>videomark</span></h2>
<p>videomark — Marks a video signal with a pattern</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv">
<a name="gst-plugins-bad-plugins-videomark.synopsis"></a><h2>Synopsis</h2>
<a name="GstVideoMark"></a><pre class="synopsis">struct              <a class="link" href="gst-plugins-bad-plugins-videomark.html#GstVideoMark-struct" title="struct GstVideoMark">GstVideoMark</a>;
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-bad-plugins-videomark.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://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/GstBaseTransform.html">GstBaseTransform</a>
                     +----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstvideofilter.html#GstVideoFilter">GstVideoFilter</a>
                           +----GstVideoMark
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-bad-plugins-videomark.properties"></a><h2>Properties</h2>
<pre class="synopsis">
  "<a class="link" href="gst-plugins-bad-plugins-videomark.html#GstVideoMark--enabled" title='The "enabled" property'>enabled</a>"                  <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a>              : Read / Write / Construct
  "<a class="link" href="gst-plugins-bad-plugins-videomark.html#GstVideoMark--pattern-count" title='The "pattern-count" property'>pattern-count</a>"            <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a>                  : Read / Write / Construct
  "<a class="link" href="gst-plugins-bad-plugins-videomark.html#GstVideoMark--pattern-data" title='The "pattern-data" property'>pattern-data</a>"             <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a>                  : Read / Write
  "<a class="link" href="gst-plugins-bad-plugins-videomark.html#GstVideoMark--pattern-data-count" title='The "pattern-data-count" property'>pattern-data-count</a>"       <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a>                  : Read / Write / Construct
  "<a class="link" href="gst-plugins-bad-plugins-videomark.html#GstVideoMark--pattern-height" title='The "pattern-height" property'>pattern-height</a>"           <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a>                  : Read / Write / Construct
  "<a class="link" href="gst-plugins-bad-plugins-videomark.html#GstVideoMark--pattern-width" title='The "pattern-width" property'>pattern-width</a>"            <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a>                  : Read / Write / Construct
  "<a class="link" href="gst-plugins-bad-plugins-videomark.html#GstVideoMark--bottom-offset" title='The "bottom-offset" property'>bottom-offset</a>"            <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a>                  : Read / Write / Construct
  "<a class="link" href="gst-plugins-bad-plugins-videomark.html#GstVideoMark--left-offset" title='The "left-offset" property'>left-offset</a>"              <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a>                  : Read / Write / Construct
  "<a class="link" href="gst-plugins-bad-plugins-videomark.html#GstVideoMark--pattern-data-uint64" title='The "pattern-data-uint64" property'>pattern-data-uint64</a>"      <span class="type">guint64</span>               : Read / Write / Construct
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-bad-plugins-videomark.description"></a><h2>Description</h2>
<p>
This plugin produces <span class="type">"pattern-count"</span> squares in the bottom left
corner of the video frames. The squares have a width and height of 
respectively <a class="link" href="gst-plugins-bad-plugins-videomark.html#GstVideoMark--pattern-width" title='The "pattern-width" property'><span class="type">"pattern-width"</span></a> and <a class="link" href="gst-plugins-bad-plugins-videomark.html#GstVideoMark--pattern-height" title='The "pattern-height" property'><span class="type">"pattern-height"</span></a>.
Even squares will be black and odd squares will be white.
</p>
<p>
After writing the pattern, <a class="link" href="gst-plugins-bad-plugins-videomark.html#GstVideoMark--pattern-data-count" title='The "pattern-data-count" property'><span class="type">"pattern-data-count"</span></a> squares after the
pattern squares are produced as the bitarray given in
<a class="link" href="gst-plugins-bad-plugins-videomark.html#GstVideoMark--pattern-data" title='The "pattern-data" property'><span class="type">"pattern-data"</span></a>. 1 bits will produce white squares and 0 bits will
produce black squares.
</p>
<p>
The element can be enabled with the <a class="link" href="gst-plugins-bad-plugins-videomark.html#GstVideoMark--enabled" title='The "enabled" property'><span class="type">"enabled"</span></a> property. It is
mostly used together with the <a class="link" href="gst-plugins-bad-plugins-videodetect.html#GstVideoDetect"><span class="type">GstVideoDetect</span></a> plugin.
</p>
<p>
</p>
<div class="refsect2">
<a name="idp23731680"></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 videotestsrc <span class="gtkdoc opt">!</span> videomark <span class="gtkdoc opt">!</span> ximagesink</pre></td>
      </tr>
    </tbody>
  </table>
</div>
 Add the default black/white squares at the bottom left of the video frames.
</div>
<p>
</p>
<p>
Last reviewed on 2007-06-01 (0.10.6)
</p>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<div class="refsect2">
<a name="idp23734752"></a><h3>Element Information</h3>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term">plugin</span></p></td>
<td>
            <a class="link" href="gst-plugins-bad-plugins-plugin-videosignal.html#plugin-videosignal">videosignal</a>
          </td>
</tr>
<tr>
<td><p><span class="term">author</span></p></td>
<td>Wim Taymans &lt;wim@fluendo.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="idp23742208"></a><h3>Element Pads</h3>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<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-yuv, format=(fourcc){ I420, YV12, Y41B, Y42B, Y444, YUY2, UYVY, AYUV, YVYU }, 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">
<col align="left" valign="top">
<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-yuv, format=(fourcc){ I420, YV12, Y41B, Y42B, Y444, YUY2, UYVY, AYUV, YVYU }, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ]</td>
</tr>
</tbody>
</table></div>
</div>
</div>
<p>
</p>
</div>
<div class="refsect1">
<a name="gst-plugins-bad-plugins-videomark.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="GstVideoMark-struct"></a><h3>struct GstVideoMark</h3>
<pre class="programlisting">struct GstVideoMark;</pre>
<p>
Opaque datastructure.
</p>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-bad-plugins-videomark.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GstVideoMark--enabled"></a><h3>The <code class="literal">"enabled"</code> property</h3>
<pre class="programlisting">  "enabled"                  <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a>              : Read / Write / Construct</pre>
<p>Enable or disable the filter.</p>
<p>Default value: TRUE</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVideoMark--pattern-count"></a><h3>The <code class="literal">"pattern-count"</code> property</h3>
<pre class="programlisting">  "pattern-count"            <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a>                  : Read / Write / Construct</pre>
<p>The number of pattern markers.</p>
<p>Allowed values: &gt;= 0</p>
<p>Default value: 4</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVideoMark--pattern-data"></a><h3>The <code class="literal">"pattern-data"</code> property</h3>
<pre class="programlisting">  "pattern-data"             <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a>                  : Read / Write</pre>
<p>The extra data pattern markers.</p>
<p>Allowed values: &gt;= 0</p>
<p>Default value: 10</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVideoMark--pattern-data-count"></a><h3>The <code class="literal">"pattern-data-count"</code> property</h3>
<pre class="programlisting">  "pattern-data-count"       <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a>                  : Read / Write / Construct</pre>
<p>The number of extra data pattern markers.</p>
<p>Allowed values: [0,64]</p>
<p>Default value: 5</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVideoMark--pattern-height"></a><h3>The <code class="literal">"pattern-height"</code> property</h3>
<pre class="programlisting">  "pattern-height"           <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a>                  : Read / Write / Construct</pre>
<p>The height of the pattern markers.</p>
<p>Allowed values: &gt;= 1</p>
<p>Default value: 16</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVideoMark--pattern-width"></a><h3>The <code class="literal">"pattern-width"</code> property</h3>
<pre class="programlisting">  "pattern-width"            <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a>                  : Read / Write / Construct</pre>
<p>The width of the pattern markers.</p>
<p>Allowed values: &gt;= 1</p>
<p>Default value: 4</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVideoMark--bottom-offset"></a><h3>The <code class="literal">"bottom-offset"</code> property</h3>
<pre class="programlisting">  "bottom-offset"            <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a>                  : Read / Write / Construct</pre>
<p>The offset from the bottom border where the pattern starts.</p>
<p>Allowed values: &gt;= 0</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVideoMark--left-offset"></a><h3>The <code class="literal">"left-offset"</code> property</h3>
<pre class="programlisting">  "left-offset"              <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a>                  : Read / Write / Construct</pre>
<p>The offset from the left border where the pattern starts.</p>
<p>Allowed values: &gt;= 0</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstVideoMark--pattern-data-uint64"></a><h3>The <code class="literal">"pattern-data-uint64"</code> property</h3>
<pre class="programlisting">  "pattern-data-uint64"      <span class="type">guint64</span>               : Read / Write / Construct</pre>
<p>The extra data pattern markers.</p>
<p>Default value: 10</p>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-bad-plugins-videomark.see-also"></a><h2>See Also</h2>
<a class="link" href="gst-plugins-bad-plugins-videodetect.html#GstVideoDetect"><span class="type">GstVideoDetect</span></a>
</div>
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