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| <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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| <a name="GstVideoFilter"></a><div class="refsect1"> |
| <a name="gst-plugins-base-libs-gstvideofilter.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-base-libs-gstvideofilter.html#GstVideoFilter-struct" title="struct GstVideoFilter">GstVideoFilter</a></td> |
| </tr> |
| <tr> |
| <td class="datatype_keyword">struct</td> |
| <td class="function_name"><a class="link" href="gst-plugins-base-libs-gstvideofilter.html#GstVideoFilterClass" title="struct GstVideoFilterClass">GstVideoFilterClass</a></td> |
| </tr> |
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| </table></div> |
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| <div class="refsect1"> |
| <a name="gst-plugins-base-libs-gstvideofilter.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> GstVideoFilter |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-libs-gstvideofilter.includes"></a><h2>Includes</h2> |
| <pre class="synopsis">#include <gst/video/gstvideofilter.h> |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-libs-gstvideofilter.description"></a><h2>Description</h2> |
| <div class="refsect2"> |
| <a name="id-1.2.15.7.7.2"></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> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-libs-gstvideofilter.functions_details"></a><h2>Functions</h2> |
| <p></p> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-base-libs-gstvideofilter.other_details"></a><h2>Types and Values</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="refsect3"> |
| <a name="GstVideoFilterClass.members"></a><h4>Members</h4> |
| <div class="informaltable"><table class="informaltable" width="100%" border="0"> |
| <colgroup> |
| <col width="300px" class="struct_members_name"> |
| <col class="struct_members_description"> |
| <col width="200px" class="struct_members_annotations"> |
| </colgroup> |
| <tbody> |
| <tr> |
| <td class="struct_member_name"><p><em class="structfield"><code><a name="GstVideoFilterClass.set-info"></a>set_info</code></em> ()</p></td> |
| <td class="struct_member_description"><p>function to be called with the negotiated caps and video infos</p></td> |
| <td class="struct_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="struct_member_name"><p><em class="structfield"><code><a name="GstVideoFilterClass.transform-frame"></a>transform_frame</code></em> ()</p></td> |
| <td class="struct_member_description"><p>transform a video frame</p></td> |
| <td class="struct_member_annotations"> </td> |
| </tr> |
| <tr> |
| <td class="struct_member_name"><p><em class="structfield"><code><a name="GstVideoFilterClass.transform-frame-ip"></a>transform_frame_ip</code></em> ()</p></td> |
| <td class="struct_member_description"><p>transform a video frame in place</p></td> |
| <td class="struct_member_annotations"> </td> |
| </tr> |
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