1<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 2<html> 3<head> 4<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 5<title>imagefreeze: GStreamer Good Plugins 1.0 Plugins Reference Manual</title> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="index.html" title="GStreamer Good Plugins 1.0 Plugins Reference Manual"> 8<link rel="up" href="ch01.html" title="gst-plugins-good Elements"> 9<link rel="prev" href="gst-plugins-good-plugins-iirequalizer.html" title="iirequalizer"> 10<link rel="next" href="gst-plugins-good-plugins-interleave.html" title="interleave"> 11<meta name="generator" content="GTK-Doc V1.28 (XML mode)"> 12<link rel="stylesheet" href="style.css" type="text/css"> 13</head> 14<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 15<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="5"><tr valign="middle"> 16<td width="100%" align="left" class="shortcuts"> 17<a href="#" class="shortcut">Top</a><span id="nav_description"> <span class="dim">|</span> 18 <a href="#gst-plugins-good-plugins-imagefreeze.description" class="shortcut">Description</a></span><span id="nav_hierarchy"> <span class="dim">|</span> 19 <a href="#gst-plugins-good-plugins-imagefreeze.object-hierarchy" class="shortcut">Object Hierarchy</a></span><span id="nav_properties"> <span class="dim">|</span> 20 <a href="#gst-plugins-good-plugins-imagefreeze.properties" class="shortcut">Properties</a></span> 21</td> 22<td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td> 23<td><a accesskey="u" href="ch01.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td> 24<td><a accesskey="p" href="gst-plugins-good-plugins-iirequalizer.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td> 25<td><a accesskey="n" href="gst-plugins-good-plugins-interleave.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td> 26</tr></table> 27<div class="refentry"> 28<a name="gst-plugins-good-plugins-imagefreeze"></a><div class="titlepage"></div> 29<div class="refnamediv"><table width="100%"><tr> 30<td valign="top"> 31<h2><span class="refentrytitle"><a name="gst-plugins-good-plugins-imagefreeze.top_of_page"></a>imagefreeze</span></h2> 32<p>imagefreeze</p> 33</td> 34<td class="gallery_image" valign="top" align="right"></td> 35</tr></table></div> 36<div class="refsect1"> 37<a name="gst-plugins-good-plugins-imagefreeze.properties"></a><h2>Properties</h2> 38<div class="informaltable"><table class="informaltable" border="0"> 39<colgroup> 40<col width="150px" class="properties_type"> 41<col width="300px" class="properties_name"> 42<col width="200px" class="properties_flags"> 43</colgroup> 44<tbody><tr> 45<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td> 46<td class="property_name"><a class="link" href="gst-plugins-good-plugins-imagefreeze.html#GstImageFreeze--num-buffers" title="The “num-buffers” property">num-buffers</a></td> 47<td class="property_flags">Read / Write</td> 48</tr></tbody> 49</table></div> 50</div> 51<a name="GstImageFreeze"></a><div class="refsect1"> 52<a name="gst-plugins-good-plugins-imagefreeze.other"></a><h2>Types and Values</h2> 53<div class="informaltable"><table class="informaltable" width="100%" border="0"> 54<colgroup> 55<col width="150px" class="name"> 56<col class="description"> 57</colgroup> 58<tbody><tr> 59<td class="datatype_keyword">struct</td> 60<td class="function_name"><a class="link" href="gst-plugins-good-plugins-imagefreeze.html#GstImageFreeze-struct" title="struct GstImageFreeze">GstImageFreeze</a></td> 61</tr></tbody> 62</table></div> 63</div> 64<div class="refsect1"> 65<a name="gst-plugins-good-plugins-imagefreeze.object-hierarchy"></a><h2>Object Hierarchy</h2> 66<pre class="screen"> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject-struct">GObject</a> 67 <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a> 68 <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstObject.html#GstObject-struct">GstObject</a> 69 <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html#GstElement-struct">GstElement</a> 70 <span class="lineart">╰──</span> GstImageFreeze 71</pre> 72</div> 73<div class="refsect1"> 74<a name="gst-plugins-good-plugins-imagefreeze.description"></a><h2>Description</h2> 75<p>The imagefreeze element generates a still frame video stream from 76the input. It duplicates the first frame with the framerate requested 77by downstream, allows seeking and answers queries.</p> 78<div class="refsect2"> 79<a name="id-1.2.78.7.3"></a><h3>Example launch line</h3> 80<div class="informalexample"> 81 <table class="listing_frame" border="0" cellpadding="0" cellspacing="0"> 82 <tbody> 83 <tr> 84 <td class="listing_lines" align="right"><pre>1</pre></td> 85 <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> <span class="gtkdoc opt">-</span>v filesrc location<span class="gtkdoc opt">=</span>some<span class="gtkdoc opt">.</span>png <span class="gtkdoc opt">!</span> decodebin <span class="gtkdoc opt">!</span> imagefreeze <span class="gtkdoc opt">!</span> autovideosink</pre></td> 86 </tr> 87 </tbody> 88 </table> 89</div> 90 This pipeline shows a still frame stream of a PNG file. 91</div> 92<div class="refsynopsisdiv"> 93<h2>Synopsis</h2> 94<div class="refsect2"> 95<a name="id-1.2.78.7.4.1"></a><h3>Element Information</h3> 96<div class="variablelist"><table border="0" class="variablelist"> 97<colgroup> 98<col align="left" valign="top"> 99<col> 100</colgroup> 101<tbody> 102<tr> 103<td><p><span class="term">plugin</span></p></td> 104<td> 105 <a class="link" href="gst-plugins-good-plugins-plugin-imagefreeze.html#plugin-imagefreeze">imagefreeze</a> 106 </td> 107</tr> 108<tr> 109<td><p><span class="term">author</span></p></td> 110<td>Sebastian Dröge <sebastian.droege@collabora.co.uk></td> 111</tr> 112<tr> 113<td><p><span class="term">class</span></p></td> 114<td>Filter/Video</td> 115</tr> 116</tbody> 117</table></div> 118</div> 119<hr> 120<div class="refsect2"> 121<a name="id-1.2.78.7.4.2"></a><h3>Element Pads</h3> 122<div class="variablelist"><table border="0" class="variablelist"> 123<colgroup> 124<col align="left" valign="top"> 125<col> 126</colgroup> 127<tbody> 128<tr> 129<td><p><span class="term">name</span></p></td> 130<td>sink</td> 131</tr> 132<tr> 133<td><p><span class="term">direction</span></p></td> 134<td>sink</td> 135</tr> 136<tr> 137<td><p><span class="term">presence</span></p></td> 138<td>always</td> 139</tr> 140<tr> 141<td><p><span class="term">details</span></p></td> 142<td>video/x-raw(ANY)</td> 143</tr> 144</tbody> 145</table></div> 146<div class="variablelist"><table border="0" class="variablelist"> 147<colgroup> 148<col align="left" valign="top"> 149<col> 150</colgroup> 151<tbody> 152<tr> 153<td><p><span class="term">name</span></p></td> 154<td>src</td> 155</tr> 156<tr> 157<td><p><span class="term">direction</span></p></td> 158<td>source</td> 159</tr> 160<tr> 161<td><p><span class="term">presence</span></p></td> 162<td>always</td> 163</tr> 164<tr> 165<td><p><span class="term">details</span></p></td> 166<td>video/x-raw(ANY)</td> 167</tr> 168</tbody> 169</table></div> 170</div> 171</div> 172</div> 173<div class="refsect1"> 174<a name="gst-plugins-good-plugins-imagefreeze.functions_details"></a><h2>Functions</h2> 175<p></p> 176</div> 177<div class="refsect1"> 178<a name="gst-plugins-good-plugins-imagefreeze.other_details"></a><h2>Types and Values</h2> 179<div class="refsect2"> 180<a name="GstImageFreeze-struct"></a><h3>struct GstImageFreeze</h3> 181<pre class="programlisting">struct GstImageFreeze;</pre> 182</div> 183</div> 184<div class="refsect1"> 185<a name="gst-plugins-good-plugins-imagefreeze.property-details"></a><h2>Property Details</h2> 186<div class="refsect2"> 187<a name="GstImageFreeze--num-buffers"></a><h3>The <code class="literal">“num-buffers”</code> property</h3> 188<pre class="programlisting"> “num-buffers” <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre> 189<p>Number of buffers to output before sending EOS (-1 = unlimited).</p> 190<p>Flags: Read / Write</p> 191<p>Allowed values: >= G_MAXULONG</p> 192<p>Default value: -1</p> 193</div> 194</div> 195</div> 196<div class="footer"> 197<hr>Generated by GTK-Doc V1.28</div> 198</body> 199</html>
