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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>GstGLSyncMeta: GStreamer Bad 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 Bad Plugins 1.0 Library Reference Manual">
<link rel="up" href="gl.html" title="OpenGL Helper Library">
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<link rel="next" href="GstGLUpload.html" title="GstGLUpload">
<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-bad-libs-GstGLSyncMeta.description" class="shortcut">Description</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="gl.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td>
<td><a accesskey="p" href="GstGLSLStage.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td>
<td><a accesskey="n" href="GstGLUpload.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td>
</tr></table>
<div class="refentry">
<a name="gst-plugins-bad-libs-GstGLSyncMeta"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="gst-plugins-bad-libs-GstGLSyncMeta.top_of_page"></a>GstGLSyncMeta</span></h2>
<p>GstGLSyncMeta — synchronization primitives</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="gst-plugins-bad-libs-GstGLSyncMeta.functions"></a><h2>Functions</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">const <a href="/usr/share/gtk-doc/html/gstreamer-1.0/gstreamer-GstMeta.html#GstMetaInfo"><span class="returnvalue">GstMetaInfo</span></a> *
</td>
<td class="function_name">
<a class="link" href="gst-plugins-bad-libs-GstGLSyncMeta.html#gst-gl-sync-meta-get-info" title="gst_gl_sync_meta_get_info ()">gst_gl_sync_meta_get_info</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="gst-plugins-bad-libs-GstGLSyncMeta.html#GstGLSyncMeta" title="struct GstGLSyncMeta"><span class="returnvalue">GstGLSyncMeta</span></a> *
</td>
<td class="function_name">
<a class="link" href="gst-plugins-bad-libs-GstGLSyncMeta.html#gst-buffer-add-gl-sync-meta" title="gst_buffer_add_gl_sync_meta ()">gst_buffer_add_gl_sync_meta</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="gst-plugins-bad-libs-GstGLSyncMeta.html#GstGLSyncMeta" title="struct GstGLSyncMeta"><span class="returnvalue">GstGLSyncMeta</span></a> *
</td>
<td class="function_name">
<a class="link" href="gst-plugins-bad-libs-GstGLSyncMeta.html#gst-buffer-add-gl-sync-meta-full" title="gst_buffer_add_gl_sync_meta_full ()">gst_buffer_add_gl_sync_meta_full</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name">
<a class="link" href="gst-plugins-bad-libs-GstGLSyncMeta.html#gst-buffer-get-gl-sync-meta" title="gst_buffer_get_gl_sync_meta()">gst_buffer_get_gl_sync_meta</a><span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gst-plugins-bad-libs-GstGLSyncMeta.html#gst-gl-sync-meta-set-sync-point" title="gst_gl_sync_meta_set_sync_point ()">gst_gl_sync_meta_set_sync_point</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gst-plugins-bad-libs-GstGLSyncMeta.html#gst-gl-sync-meta-wait" title="gst_gl_sync_meta_wait ()">gst_gl_sync_meta_wait</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="gst-plugins-bad-libs-GstGLSyncMeta.html#gst-gl-sync-meta-wait-cpu" title="gst_gl_sync_meta_wait_cpu ()">gst_gl_sync_meta_wait_cpu</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gst-plugins-bad-libs-GstGLSyncMeta.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-bad-libs-GstGLSyncMeta.html#GstGLSyncMeta" title="struct GstGLSyncMeta">GstGLSyncMeta</a></td>
</tr>
<tr>
<td class="define_keyword">#define</td>
<td class="function_name"><a class="link" href="gst-plugins-bad-libs-GstGLSyncMeta.html#GST-BUFFER-POOL-OPTION-GL-SYNC-META:CAPS" title="GST_BUFFER_POOL_OPTION_GL_SYNC_META">GST_BUFFER_POOL_OPTION_GL_SYNC_META</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gst-plugins-bad-libs-GstGLSyncMeta.description"></a><h2>Description</h2>
<p><a class="link" href="gst-plugins-bad-libs-GstGLSyncMeta.html#GstGLSyncMeta" title="struct GstGLSyncMeta"><span class="type">GstGLSyncMeta</span></a> provides the ability to synchronize the OpenGL command stream
with the CPU or with other OpenGL contexts.</p>
</div>
<div class="refsect1">
<a name="gst-plugins-bad-libs-GstGLSyncMeta.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="gst-gl-sync-meta-get-info"></a><h3>gst_gl_sync_meta_get_info ()</h3>
<pre class="programlisting">const <a href="/usr/share/gtk-doc/html/gstreamer-1.0/gstreamer-GstMeta.html#GstMetaInfo"><span class="returnvalue">GstMetaInfo</span></a> *
gst_gl_sync_meta_get_info (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
</div>
<hr>
<div class="refsect2">
<a name="gst-buffer-add-gl-sync-meta"></a><h3>gst_buffer_add_gl_sync_meta ()</h3>
<pre class="programlisting"><a class="link" href="gst-plugins-bad-libs-GstGLSyncMeta.html#GstGLSyncMeta" title="struct GstGLSyncMeta"><span class="returnvalue">GstGLSyncMeta</span></a> *
gst_buffer_add_gl_sync_meta (<em class="parameter"><code><a class="link" href="GstGLContext.html" title="GstGLContext"><span class="type">GstGLContext</span></a> *context</code></em>,
                             <em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstBuffer.html#GstBuffer-struct"><span class="type">GstBuffer</span></a> *buffer</code></em>);</pre>
<div class="refsect3">
<a name="gst-buffer-add-gl-sync-meta.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>context</p></td>
<td class="parameter_description"><p>a <a class="link" href="GstGLContext.html" title="GstGLContext"><span class="type">GstGLContext</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>buffer</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstBuffer.html#GstBuffer-struct"><span class="type">GstBuffer</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-buffer-add-gl-sync-meta.returns"></a><h4>Returns</h4>
<p> the <a class="link" href="gst-plugins-bad-libs-GstGLSyncMeta.html#GstGLSyncMeta" title="struct GstGLSyncMeta"><span class="type">GstGLSyncMeta</span></a> added to <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstBuffer.html#GstBuffer-struct"><span class="type">GstBuffer</span></a>. </p>
<p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p>
</div>
<p class="since">Since: 1.6</p>
</div>
<hr>
<div class="refsect2">
<a name="gst-buffer-add-gl-sync-meta-full"></a><h3>gst_buffer_add_gl_sync_meta_full ()</h3>
<pre class="programlisting"><a class="link" href="gst-plugins-bad-libs-GstGLSyncMeta.html#GstGLSyncMeta" title="struct GstGLSyncMeta"><span class="returnvalue">GstGLSyncMeta</span></a> *
gst_buffer_add_gl_sync_meta_full (<em class="parameter"><code><a class="link" href="GstGLContext.html" title="GstGLContext"><span class="type">GstGLContext</span></a> *context</code></em>,
                                  <em class="parameter"><code><a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstBuffer.html#GstBuffer-struct"><span class="type">GstBuffer</span></a> *buffer</code></em>,
                                  <em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> data</code></em>);</pre>
<div class="refsect3">
<a name="gst-buffer-add-gl-sync-meta-full.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>context</p></td>
<td class="parameter_description"><p>a <a class="link" href="GstGLContext.html" title="GstGLContext"><span class="type">GstGLContext</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>buffer</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstBuffer.html#GstBuffer-struct"><span class="type">GstBuffer</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p>sync data to hold</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="gst-buffer-add-gl-sync-meta-full.returns"></a><h4>Returns</h4>
<p> the <a class="link" href="gst-plugins-bad-libs-GstGLSyncMeta.html#GstGLSyncMeta" title="struct GstGLSyncMeta"><span class="type">GstGLSyncMeta</span></a> added to <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstBuffer.html#GstBuffer-struct"><span class="type">GstBuffer</span></a>. </p>
<p><span class="annotation">[<acronym title="Don't free data after the code is done."><span class="acronym">transfer none</span></acronym>]</span></p>
</div>
<p class="since">Since: 1.8</p>
</div>
<hr>
<div class="refsect2">
<a name="gst-buffer-get-gl-sync-meta"></a><h3>gst_buffer_get_gl_sync_meta()</h3>
<pre class="programlisting">#define gst_buffer_get_gl_sync_meta(b) ((GstGLSyncMeta*)gst_buffer_get_meta((b),GST_GL_SYNC_META_API_TYPE))
</pre>
</div>
<hr>
<div class="refsect2">
<a name="gst-gl-sync-meta-set-sync-point"></a><h3>gst_gl_sync_meta_set_sync_point ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_gl_sync_meta_set_sync_point (<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-GstGLSyncMeta.html#GstGLSyncMeta" title="struct GstGLSyncMeta"><span class="type">GstGLSyncMeta</span></a> *sync_meta</code></em>,
                                 <em class="parameter"><code><a class="link" href="GstGLContext.html" title="GstGLContext"><span class="type">GstGLContext</span></a> *context</code></em>);</pre>
<p>Set a sync point to possibly wait on at a later time.</p>
<div class="refsect3">
<a name="gst-gl-sync-meta-set-sync-point.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>sync_meta</p></td>
<td class="parameter_description"><p>a <a class="link" href="gst-plugins-bad-libs-GstGLSyncMeta.html#GstGLSyncMeta" title="struct GstGLSyncMeta"><span class="type">GstGLSyncMeta</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>context</p></td>
<td class="parameter_description"><p>a <a class="link" href="GstGLContext.html" title="GstGLContext"><span class="type">GstGLContext</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: 1.6</p>
</div>
<hr>
<div class="refsect2">
<a name="gst-gl-sync-meta-wait"></a><h3>gst_gl_sync_meta_wait ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_gl_sync_meta_wait (<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-GstGLSyncMeta.html#GstGLSyncMeta" title="struct GstGLSyncMeta"><span class="type">GstGLSyncMeta</span></a> *sync_meta</code></em>,
                       <em class="parameter"><code><a class="link" href="GstGLContext.html" title="GstGLContext"><span class="type">GstGLContext</span></a> *context</code></em>);</pre>
<p>Insert a wait into <em class="parameter"><code>context</code></em>
's command stream ensuring all previous OpenGL
commands before <em class="parameter"><code>sync_meta</code></em>
 have completed.</p>
<div class="refsect3">
<a name="gst-gl-sync-meta-wait.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>sync_meta</p></td>
<td class="parameter_description"><p>a <a class="link" href="gst-plugins-bad-libs-GstGLSyncMeta.html#GstGLSyncMeta" title="struct GstGLSyncMeta"><span class="type">GstGLSyncMeta</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>context</p></td>
<td class="parameter_description"><p>a <a class="link" href="GstGLContext.html" title="GstGLContext"><span class="type">GstGLContext</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: 1.6</p>
</div>
<hr>
<div class="refsect2">
<a name="gst-gl-sync-meta-wait-cpu"></a><h3>gst_gl_sync_meta_wait_cpu ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
gst_gl_sync_meta_wait_cpu (<em class="parameter"><code><a class="link" href="gst-plugins-bad-libs-GstGLSyncMeta.html#GstGLSyncMeta" title="struct GstGLSyncMeta"><span class="type">GstGLSyncMeta</span></a> *sync_meta</code></em>,
                           <em class="parameter"><code><a class="link" href="GstGLContext.html" title="GstGLContext"><span class="type">GstGLContext</span></a> *context</code></em>);</pre>
<p>Perform a wait so that the sync point has passed from the CPU's perspective
What that means, is that all GL operations changing CPU-visible data before
the sync point are now visible.</p>
<div class="refsect3">
<a name="gst-gl-sync-meta-wait-cpu.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>sync_meta</p></td>
<td class="parameter_description"><p>a <a class="link" href="gst-plugins-bad-libs-GstGLSyncMeta.html#GstGLSyncMeta" title="struct GstGLSyncMeta"><span class="type">GstGLSyncMeta</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>context</p></td>
<td class="parameter_description"><p>a <a class="link" href="GstGLContext.html" title="GstGLContext"><span class="type">GstGLContext</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: 1.8</p>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-bad-libs-GstGLSyncMeta.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GstGLSyncMeta"></a><h3>struct GstGLSyncMeta</h3>
<pre class="programlisting">struct GstGLSyncMeta {
  GstMeta parent;

  GstGLContext *context;

  gpointer      data;

  void (*set_sync) (GstGLSyncMeta * sync, GstGLContext * context);
  void (*set_sync_gl) (GstGLSyncMeta * sync, GstGLContext * context);
  void (*wait) (GstGLSyncMeta * sync, GstGLContext * context);
  void (*wait_gl) (GstGLSyncMeta * sync, GstGLContext * context);
  void (*wait_cpu) (GstGLSyncMeta * sync, GstGLContext * context);
  void (*wait_cpu_gl) (GstGLSyncMeta * sync, GstGLContext * context);
  void (*copy) (GstGLSyncMeta * src, GstBuffer * sbuffer, GstGLSyncMeta * dest, GstBuffer * dbuffer);
  void (*free) (GstGLSyncMeta * sync, GstGLContext * context);
  void (*free_gl) (GstGLSyncMeta * sync, GstGLContext * context);
};
</pre>
<div class="refsect3">
<a name="GstGLSyncMeta.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><a href="/usr/share/gtk-doc/html/gstreamer-1.0/gstreamer-GstMeta.html#GstMeta"><span class="type">GstMeta</span></a> <em class="structfield"><code><a name="GstGLSyncMeta.parent"></a>parent</code></em>;</p></td>
<td class="struct_member_description"><p>the parent <a href="/usr/share/gtk-doc/html/gstreamer-1.0/gstreamer-GstMeta.html#GstMeta"><span class="type">GstMeta</span></a></p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><a class="link" href="GstGLContext.html" title="GstGLContext"><span class="type">GstGLContext</span></a> *<em class="structfield"><code><a name="GstGLSyncMeta.context"></a>context</code></em>;</p></td>
<td class="struct_member_description"><p>the <a class="link" href="GstGLContext.html" title="GstGLContext"><span class="type">GstGLContext</span></a> used to allocate the meta</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> <em class="structfield"><code><a name="GstGLSyncMeta.data"></a>data</code></em>;</p></td>
<td class="struct_member_description"><p>a custom data pointer for the implementation</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GstGLSyncMeta.set-sync"></a>set_sync</code></em> ()</p></td>
<td class="struct_member_description"><p>set a sync point in the OpenGL command stream</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GstGLSyncMeta.set-sync-gl"></a>set_sync_gl</code></em> ()</p></td>
<td class="struct_member_description"><p>the same as <em class="parameter"><code>set_sync</code></em>
but called from <em class="parameter"><code>context</code></em>
's thread</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GstGLSyncMeta.wait"></a>wait</code></em> ()</p></td>
<td class="struct_member_description"><p>execute a wait on the previously set sync point into the OpenGL command stream</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GstGLSyncMeta.wait-gl"></a>wait_gl</code></em> ()</p></td>
<td class="struct_member_description"><p>the same as <em class="parameter"><code>wait</code></em>
but called from <em class="parameter"><code>context</code></em>
's thread</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GstGLSyncMeta.wait-cpu"></a>wait_cpu</code></em> ()</p></td>
<td class="struct_member_description"><p>wait for the previously set sync point to pass from the CPU</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GstGLSyncMeta.wait-cpu-gl"></a>wait_cpu_gl</code></em> ()</p></td>
<td class="struct_member_description"><p>the same as <em class="parameter"><code>wait_cpu</code></em>
but called from <em class="parameter"><code>context</code></em>
's thread</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GstGLSyncMeta.copy"></a>copy</code></em> ()</p></td>
<td class="struct_member_description"><p>copy <em class="parameter"><code>data</code></em>
into a new <a class="link" href="gst-plugins-bad-libs-GstGLSyncMeta.html#GstGLSyncMeta" title="struct GstGLSyncMeta"><span class="type">GstGLSyncMeta</span></a></p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GstGLSyncMeta.free"></a>free</code></em> ()</p></td>
<td class="struct_member_description"><p>free <em class="parameter"><code>data</code></em>
</p></td>
<td class="struct_member_annotations"> </td>
</tr>
<tr>
<td class="struct_member_name"><p><em class="structfield"><code><a name="GstGLSyncMeta.free-gl"></a>free_gl</code></em> ()</p></td>
<td class="struct_member_description"><p>free <em class="parameter"><code>data</code></em>
in <em class="parameter"><code>context</code></em>
's thread</p></td>
<td class="struct_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="GST-BUFFER-POOL-OPTION-GL-SYNC-META:CAPS"></a><h3>GST_BUFFER_POOL_OPTION_GL_SYNC_META</h3>
<pre class="programlisting">#define GST_BUFFER_POOL_OPTION_GL_SYNC_META "GstBufferPoolOptionGLSyncMeta"
</pre>
<p>An option that can be activated on bufferpools to request OpenGL
synchronization metadata on buffers from the pool.</p>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-bad-libs-GstGLSyncMeta.see-also"></a><h2>See Also</h2>
<p><a class="link" href="gst-plugins-bad-libs-gstglbasememory.html#GstGLBaseMemory" title="GstGLBaseMemory"><span class="type">GstGLBaseMemory</span></a>, <a class="link" href="GstGLContext.html" title="GstGLContext"><span class="type">GstGLContext</span></a></p>
</div>
</div>
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