| <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> |
| <html> |
| <head> |
| <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> |
| <title>gstvideofilter: GStreamer Base Plugins 1.0 Library Reference Manual</title> |
| <meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> |
| <link rel="home" href="index.html" title="GStreamer Base Plugins 1.0 Library Reference Manual"> |
| <link rel="up" href="gstreamer-video.html" title="Video Library"> |
| <link rel="prev" href="gst-plugins-base-libs-gstvideooverlaycomposition.html" title="gstvideooverlaycomposition"> |
| <link rel="next" href="gst-plugins-base-libs-GstVideoDither.html" title="GstVideoDither"> |
| <meta name="generator" content="GTK-Doc V1.25 (XML mode)"> |
| <link rel="stylesheet" href="style.css" type="text/css"> |
| </head> |
| <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> |
| <table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="5"><tr valign="middle"> |
| <td width="100%" align="left" class="shortcuts"> |
| <a href="#" class="shortcut">Top</a><span id="nav_description"> <span class="dim">|</span> |
| <a href="#gst-plugins-base-libs-gstvideofilter.description" class="shortcut">Description</a></span><span id="nav_hierarchy"> <span class="dim">|</span> |
| <a href="#gst-plugins-base-libs-gstvideofilter.object-hierarchy" class="shortcut">Object Hierarchy</a></span> |
| </td> |
| <td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td> |
| <td><a accesskey="u" href="gstreamer-video.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td> |
| <td><a accesskey="p" href="gst-plugins-base-libs-gstvideooverlaycomposition.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td> |
| <td><a accesskey="n" href="gst-plugins-base-libs-GstVideoDither.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td> |
| </tr></table> |
| <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> |
| </td> |
| <td class="gallery_image" valign="top" align="right"></td> |
| </tr></table></div> |
| <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> |
| </tbody> |
| </table></div> |
| </div> |
| <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> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| </div> |
| </div> |
| <div class="footer"> |
| <hr>Generated by GTK-Doc V1.25</div> |
| </body> |
| </html> |