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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>glshader: GStreamer Bad Plugins 1.0 Plugins Reference Manual</title>
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<a href="#" class="shortcut">Top</a><span id="nav_description">  <span class="dim">|</span> 
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                  <a href="#gst-plugins-bad-plugins-glshader.properties" class="shortcut">Properties</a></span><span id="nav_signals">  <span class="dim">|</span> 
                  <a href="#gst-plugins-bad-plugins-glshader.signals" class="shortcut">Signals</a></span>
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<div class="refentry">
<a name="gst-plugins-bad-plugins-glshader"></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-glshader.top_of_page"></a>glshader</span></h2>
<p>glshader</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="gst-plugins-bad-plugins-glshader.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="/usr/share/gtk-doc/html/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-glshader.html#GstGLFilterShader--location" title="The “location” property">location</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type">
<a href="/usr/share/gtk-doc/html/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-glshader.html#GstGLFilterShader--preset" title="The “preset” property">preset</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type">
<a href="/usr/share/gtk-doc/html/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-glshader.html#GstGLFilterShader--vars" title="The “vars” property">vars</a></td>
<td class="property_flags">Write</td>
</tr>
<tr>
<td class="property_type">
<a href="/usr/share/gtk-doc/html/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-glshader.html#GstGLFilterShader--fragment" title="The “fragment” property">fragment</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type">
<span class="type">GstGLShader</span> *</td>
<td class="property_name"><a class="link" href="gst-plugins-bad-plugins-glshader.html#GstGLFilterShader--shader" title="The “shader” property">shader</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type">
<a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstStructure.html#GstStructure-struct"><span class="type">GstStructure</span></a> *</td>
<td class="property_name"><a class="link" href="gst-plugins-bad-plugins-glshader.html#GstGLFilterShader--uniforms" title="The “uniforms” property">uniforms</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/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-glshader.html#GstGLFilterShader--update-shader" title="The “update-shader” property">update-shader</a></td>
<td class="property_flags">Write</td>
</tr>
<tr>
<td class="property_type">
<a href="/usr/share/gtk-doc/html/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-glshader.html#GstGLFilterShader--vertex" title="The “vertex” property">vertex</a></td>
<td class="property_flags">Read / Write</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gst-plugins-bad-plugins-glshader.signals"></a><h2>Signals</h2>
<div class="informaltable"><table class="informaltable" border="0">
<colgroup>
<col width="150px" class="signals_return">
<col width="300px" class="signals_name">
<col width="200px" class="signals_flags">
</colgroup>
<tbody><tr>
<td class="signal_type">
<span class="returnvalue">GstGLShader</span>*</td>
<td class="signal_name"><a class="link" href="gst-plugins-bad-plugins-glshader.html#GstGLFilterShader-create-shader" title="The “create-shader” signal">create-shader</a></td>
<td class="signal_flags"><a href="/usr/share/gtk-doc/html/gobject/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS">Run Last</a></td>
</tr></tbody>
</table></div>
</div>
<a name="GstGLFilterShader"></a><div class="refsect1">
<a name="gst-plugins-bad-plugins-glshader.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-glshader.html#GstGLFilterShader-struct" title="struct GstGLFilterShader">GstGLFilterShader</a></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gst-plugins-bad-plugins-glshader.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen">    <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject-struct">GObject</a>
    <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
        <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstObject.html#GstObject-struct">GstObject</a>
            <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html#GstElement-struct">GstElement</a>
                <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-libs-1.0/GstBaseTransform.html#GstBaseTransform-struct">GstBaseTransform</a>
                    <span class="lineart">╰──</span> GstGLBaseFilter
                        <span class="lineart">╰──</span> GstGLFilter
                            <span class="lineart">╰──</span> GstGLFilterShader
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-bad-plugins-glshader.description"></a><h2>Description</h2>
<p>OpenGL fragment shader filter</p>
<div class="refsect2">
<a name="id-1.2.77.8.3"></a><h3>Examples</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 <span class="gtkdoc opt">!</span> glupload <span class="gtkdoc opt">!</span> glshader fragment<span class="gtkdoc opt">=</span><span class="string">&quot;</span><span class="gtkdoc esc">\&quot;</span><span class="string">`cat myshader.frag`</span><span class="gtkdoc esc">\&quot;</span><span class="string">&quot;</span> <span class="gtkdoc opt">!</span> glimagesink</pre></td>
      </tr>
    </tbody>
  </table>
</div>

FBO (Frame Buffer Object) and GLSL (OpenGL Shading Language) are required. A <span class="type">version</span> header is required
</div>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<div class="refsect2">
<a name="id-1.2.77.8.4.1"></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-bad-plugins-plugin-opengl.html#plugin-opengl">opengl</a>
          </td>
</tr>
<tr>
<td><p><span class="term">author</span></p></td>
<td>&lt;matthew@centricular.com&gt;</td>
</tr>
<tr>
<td><p><span class="term">class</span></p></td>
<td>Filter/Effect</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="id-1.2.77.8.4.2"></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>video/x-raw(ANY), format=(string)RGBA, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ], texture-target=(string)2D</td>
</tr>
<tr>
<td><p><span class="term"></span></p></td>
<td> video/x-raw(memory:GLMemory), format=(string)RGBA, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ], texture-target=(string)2D</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(memory:GLMemory), format=(string)RGBA, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ], texture-target=(string)2D</td>
</tr>
<tr>
<td><p><span class="term"></span></p></td>
<td> video/x-raw(ANY), format=(string)RGBA, width=(int)[ 1, 2147483647 ], height=(int)[ 1, 2147483647 ], framerate=(fraction)[ 0/1, 2147483647/1 ], texture-target=(string)2D</td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-bad-plugins-glshader.functions_details"></a><h2>Functions</h2>
<p></p>
</div>
<div class="refsect1">
<a name="gst-plugins-bad-plugins-glshader.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GstGLFilterShader-struct"></a><h3>struct GstGLFilterShader</h3>
<pre class="programlisting">struct GstGLFilterShader;</pre>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-bad-plugins-glshader.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GstGLFilterShader--location"></a><h3>The <code class="literal">“location”</code> property</h3>
<pre class="programlisting">  “location”                 <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</pre>
<p>Location of the GLSL file to load.</p>
<p>Flags: Read / Write</p>
<p>Default value: NULL</p>
</div>
<hr>
<div class="refsect2">
<a name="GstGLFilterShader--preset"></a><h3>The <code class="literal">“preset”</code> property</h3>
<pre class="programlisting">  “preset”                   <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</pre>
<p>Location of the shader uniform variables preset file.</p>
<p>Flags: Read / Write</p>
<p>Default value: NULL</p>
</div>
<hr>
<div class="refsect2">
<a name="GstGLFilterShader--vars"></a><h3>The <code class="literal">“vars”</code> property</h3>
<pre class="programlisting">  “vars”                     <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</pre>
<p>Set the shader uniform variables.</p>
<p>Flags: Write</p>
<p>Default value: NULL</p>
</div>
<hr>
<div class="refsect2">
<a name="GstGLFilterShader--fragment"></a><h3>The <code class="literal">“fragment”</code> property</h3>
<pre class="programlisting">  “fragment”                 <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</pre>
<p>GLSL fragment source.</p>
<p>Flags: Read / Write</p>
<p>Default value: NULL</p>
</div>
<hr>
<div class="refsect2">
<a name="GstGLFilterShader--shader"></a><h3>The <code class="literal">“shader”</code> property</h3>
<pre class="programlisting">  “shader”                   <span class="type">GstGLShader</span> *</pre>
<p>GstGLShader to use.</p>
<p>Flags: Read / Write</p>
</div>
<hr>
<div class="refsect2">
<a name="GstGLFilterShader--uniforms"></a><h3>The <code class="literal">“uniforms”</code> property</h3>
<pre class="programlisting">  “uniforms”                 <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstStructure.html#GstStructure-struct"><span class="type">GstStructure</span></a> *</pre>
<p>GLSL Uniforms.</p>
<p>Flags: Read / Write</p>
</div>
<hr>
<div class="refsect2">
<a name="GstGLFilterShader--update-shader"></a><h3>The <code class="literal">“update-shader”</code> property</h3>
<pre class="programlisting">  “update-shader”            <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>Emit the 'create-shader' signal for the next frame.</p>
<p>Flags: Write</p>
<p>Default value: FALSE</p>
</div>
<hr>
<div class="refsect2">
<a name="GstGLFilterShader--vertex"></a><h3>The <code class="literal">“vertex”</code> property</h3>
<pre class="programlisting">  “vertex”                   <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</pre>
<p>GLSL vertex source.</p>
<p>Flags: Read / Write</p>
<p>Default value: NULL</p>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-bad-plugins-glshader.signal-details"></a><h2>Signal Details</h2>
<div class="refsect2">
<a name="GstGLFilterShader-create-shader"></a><h3>The <code class="literal">“create-shader”</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">GstGLShader</span>*
user_function (<a class="link" href="gst-plugins-bad-plugins-glshader.html#GstGLFilterShader"><span class="type">GstGLFilterShader</span></a> *gstglfiltershader,
               <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a>           user_data)</pre>
<p>Flags: <a href="/usr/share/gtk-doc/html/gobject/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS">Run Last</a></p>
</div>
</div>
</div>
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