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| <a href="#gst-plugins-base-libs-gstvideofilter.synopsis" class="shortcut">Top</a> |
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| <a href="#gst-plugins-base-libs-gstvideofilter.description" class="shortcut">Description</a> |
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| <a href="#gst-plugins-base-libs-gstvideofilter.object-hierarchy" class="shortcut">Object Hierarchy</a> |
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| <div class="refentry"> |
| <a name="gst-plugins-base-libs-gstvideofilter"></a><div class="titlepage"></div> |
| <div class="refnamediv"><table width="100%"><tr> |
| <td valign="top"> |
| <h2><span class="refentrytitle"><a name="gst-plugins-base-libs-gstvideofilter.top_of_page"></a>gstvideofilter</span></h2> |
| <p>gstvideofilter — Base class for video filters</p> |
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| <div class="refsynopsisdiv"> |
| <a name="gst-plugins-base-libs-gstvideofilter.synopsis"></a><h2>Synopsis</h2> |
| <a name="GstVideoFilter"></a><pre class="synopsis"> |
| #include <gst/video/gstvideofilter.h> |
| |
| struct <a class="link" href="gst-plugins-base-libs-gstvideofilter.html#GstVideoFilter-struct" title="struct GstVideoFilter">GstVideoFilter</a>; |
| struct <a class="link" href="gst-plugins-base-libs-gstvideofilter.html#GstVideoFilterClass" title="struct GstVideoFilterClass">GstVideoFilterClass</a>; |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-libs-gstvideofilter.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/GstBaseTransform.html">GstBaseTransform</a> |
| +----GstVideoFilter |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-libs-gstvideofilter.description"></a><h2>Description</h2> |
| <p> |
| </p> |
| <div class="refsect2"> |
| <a name="idp15774368"></a><p> |
| Provides useful functions and a base class for video filters. |
| </p> |
| <p> |
| The videofilter will by default enable QoS on the parent GstBaseTransform |
| to implement frame dropping. |
| </p> |
| </div> |
| <p> |
| </p> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-libs-gstvideofilter.details"></a><h2>Details</h2> |
| <div class="refsect2"> |
| <a name="GstVideoFilter-struct"></a><h3>struct GstVideoFilter</h3> |
| <pre class="programlisting">struct GstVideoFilter;</pre> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstVideoFilterClass"></a><h3>struct GstVideoFilterClass</h3> |
| <pre class="programlisting">struct GstVideoFilterClass { |
| GstBaseTransformClass parent_class; |
| |
| gboolean (*set_info) (GstVideoFilter *filter, |
| GstCaps *incaps, GstVideoInfo *in_info, |
| GstCaps *outcaps, GstVideoInfo *out_info); |
| |
| /* transform */ |
| GstFlowReturn (*transform_frame) (GstVideoFilter *filter, |
| GstVideoFrame *inframe, GstVideoFrame *outframe); |
| GstFlowReturn (*transform_frame_ip) (GstVideoFilter *trans, GstVideoFrame *frame); |
| }; |
| </pre> |
| <p> |
| The video filter class structure. |
| </p> |
| <div class="variablelist"><table border="0"> |
| <col align="left" valign="top"> |
| <tbody> |
| <tr> |
| <td><p><span class="term"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer-libs/html/GstBaseTransform.html#GstBaseTransformClass"><span class="type">GstBaseTransformClass</span></a> <em class="structfield"><code><a name="GstVideoFilterClass.parent-class"></a>parent_class</code></em>;</span></p></td> |
| <td>the parent class structure</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="structfield"><code><a name="GstVideoFilterClass.set-info"></a>set_info</code></em> ()</span></p></td> |
| <td>function to be called with the negotiated caps and video infos</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="structfield"><code><a name="GstVideoFilterClass.transform-frame"></a>transform_frame</code></em> ()</span></p></td> |
| <td>transform a video frame</td> |
| </tr> |
| <tr> |
| <td><p><span class="term"><em class="structfield"><code><a name="GstVideoFilterClass.transform-frame-ip"></a>transform_frame_ip</code></em> ()</span></p></td> |
| <td>transform a video frame in place</td> |
| </tr> |
| </tbody> |
| </table></div> |
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