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<title>GstGLBaseFilter: GStreamer Bad Plugins 1.0 Library Reference Manual</title>
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<a name="GstGLBaseFilter"></a><div class="titlepage"></div>
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<h2><span class="refentrytitle"><a name="GstGLBaseFilter.top_of_page"></a>GstGLBaseFilter</span></h2>
<p>GstGLBaseFilter — <a href="/usr/share/gtk-doc/html/gstreamer-libs-1.0GstBaseTransform.html#GstBaseTransform-struct"><span class="type">GstBaseTransform</span></a> subclass for transformin OpenGL resources</p>
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<a name="GstGLBaseFilter.properties"></a><h2>Properties</h2>
<div class="informaltable"><table class="informaltable" border="0">
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<col width="150px" class="properties_type">
<col width="300px" class="properties_name">
<col width="200px" class="properties_flags">
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<td class="property_type">
<a class="link" href="GstGLContext.html" title="GstGLContext"><span class="type">GstGLContext</span></a> *</td>
<td class="property_name"><a class="link" href="GstGLBaseFilter.html#GstGLBaseFilter--context" title="The “context” property">context</a></td>
<td class="property_flags">Read</td>
</tr></tbody>
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<div class="refsect1">
<a name="GstGLBaseFilter.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">
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<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="GstGLBaseFilter.html#GstGLBaseFilter-struct" title="GstGLBaseFilter">GstGLBaseFilter</a></td>
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<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="GstGLBaseFilter.html#GstGLBaseFilterClass" title="GstGLBaseFilterClass">GstGLBaseFilterClass</a></td>
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<div class="refsect1">
<a name="GstGLBaseFilter.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen"> <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GObject-struct">GObject</a>
<span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gobjectgobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
<span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0GstObject.html#GstObject-struct">GstObject</a>
<span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0GstElement.html#GstElement-struct">GstElement</a>
<span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-libs-1.0GstBaseTransform.html#GstBaseTransform-struct">GstBaseTransform</a>
<span class="lineart">╰──</span> GstGLBaseFilter
<span class="lineart">╰──</span> <a class="link" href="GstGLFilter.html" title="GstGLFilter">GstGLFilter</a>
</pre>
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<div class="refsect1">
<a name="GstGLBaseFilter.description"></a><h2>Description</h2>
<p><a class="link" href="GstGLBaseFilter.html" title="GstGLBaseFilter"><span class="type">GstGLBaseFilter</span></a> handles the nitty gritty details of retrieving an OpenGL
context. It also provided some wrappers around <a href="/usr/share/gtk-doc/html/gstreamer-libs-1.0GstBaseTransform.html#GstBaseTransform-struct"><span class="type">GstBaseTransform</span></a>'s
<code class="function">start()</code>, <code class="function">stop()</code> and <code class="function">set_caps()</code> virtual methods that ensure an OpenGL context
is available and current in the calling thread.</p>
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<div class="refsect1">
<a name="GstGLBaseFilter.functions_details"></a><h2>Functions</h2>
<p></p>
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<div class="refsect1">
<a name="GstGLBaseFilter.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GstGLBaseFilter-struct"></a><h3>GstGLBaseFilter</h3>
<pre class="programlisting">typedef struct _GstGLBaseFilter GstGLBaseFilter;</pre>
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<a name="GstGLBaseFilter.members"></a><h4>Members</h4>
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<colgroup>
<col width="300px" class="struct_members_name">
<col class="struct_members_description">
<col width="200px" class="struct_members_annotations">
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<div class="refsect2">
<a name="GstGLBaseFilterClass"></a><h3>GstGLBaseFilterClass</h3>
<pre class="programlisting">typedef struct {
GstBaseTransformClass parent_class;
GstGLAPI supported_gl_api;
gboolean (*gl_start) (GstGLBaseFilter *filter);
void (*gl_stop) (GstGLBaseFilter *filter);
gboolean (*gl_set_caps) (GstGLBaseFilter *filter, GstCaps * incaps, GstCaps * outcaps);
} GstGLBaseFilterClass;
</pre>
<div class="refsect3">
<a name="GstGLBaseFilterClass.members"></a><h4>Members</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
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<col width="300px" class="struct_members_name">
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<td class="struct_member_name"><p><a class="link" href="gst-plugins-bad-libs-GstGLAPI.html#GstGLAPI" title="enum GstGLAPI"><span class="type">GstGLAPI</span></a> <em class="structfield"><code><a name="GstGLBaseFilterClass.supported-gl-api"></a>supported_gl_api</code></em>;</p></td>
<td class="struct_member_description"><p>the logical-OR of <a class="link" href="gst-plugins-bad-libs-GstGLAPI.html#GstGLAPI" title="enum GstGLAPI"><span class="type">GstGLAPI</span></a>'s supported by this element</p></td>
<td class="struct_member_annotations"> </td>
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<td class="struct_member_name"><p><em class="structfield"><code><a name="GstGLBaseFilterClass.gl-start"></a>gl_start</code></em> ()</p></td>
<td class="struct_member_description"><p>called in the GL thread to setup the element GL state.</p></td>
<td class="struct_member_annotations"> </td>
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<td class="struct_member_name"><p><em class="structfield"><code><a name="GstGLBaseFilterClass.gl-stop"></a>gl_stop</code></em> ()</p></td>
<td class="struct_member_description"><p>called in the GL thread to setup the element GL state.</p></td>
<td class="struct_member_annotations"> </td>
</tr>
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<td class="struct_member_name"><p><em class="structfield"><code><a name="GstGLBaseFilterClass.gl-set-caps"></a>gl_set_caps</code></em> ()</p></td>
<td class="struct_member_description"><p>called in the GL thread when caps are set on <em class="parameter"><code>filter</code></em>
.</p></td>
<td class="struct_member_annotations"> </td>
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</tbody>
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<div class="refsect1">
<a name="GstGLBaseFilter.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GstGLBaseFilter--context"></a><h3>The <code class="literal">“context”</code> property</h3>
<pre class="programlisting"> “context” <a class="link" href="GstGLContext.html" title="GstGLContext"><span class="type">GstGLContext</span></a> *</pre>
<p>Get OpenGL context.</p>
<p>Flags: Read</p>
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<div class="refsect1">
<a name="GstGLBaseFilter.see-also"></a><h2>See Also</h2>
<p><a href="/usr/share/gtk-doc/html/gstreamer-libs-1.0GstBaseTransform.html#GstBaseTransform-struct"><span class="type">GstBaseTransform</span></a></p>
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