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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>GStreamer Core Plugins 1.0 Plugins Reference Manual: tee</title>
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<a href="#gstreamer-plugins-tee.description" class="shortcut">Description</a></span><span id="nav_hierarchy"> <span class="dim">|</span>
<a href="#gstreamer-plugins-tee.object-hierarchy" class="shortcut">Object Hierarchy</a></span><span id="nav_properties"> <span class="dim">|</span>
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<a name="gstreamer-plugins-tee"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="gstreamer-plugins-tee.top_of_page"></a>tee</span></h2>
<p>tee — 1-to-N pipe fitting</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="gstreamer-plugins-tee.properties"></a><h2>Properties</h2>
<div class="informaltable"><table border="0">
<colgroup>
<col width="150px" class="properties_type">
<col width="300px" class="properties_name">
<col width="200px" class="properties_flags">
</colgroup>
<tbody>
<tr>
<td class="property_type">
<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html"><span class="type">GstPad</span></a> *</td>
<td class="property_name"><a class="link" href="gstreamer-plugins-tee.html#GstTee--alloc-pad" title="The “alloc-pad” property">alloc-pad</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="gstreamer-plugins-tee.html#GstTee--has-chain" title="The “has-chain” property">has-chain</a></td>
<td class="property_flags">Read / Write / Construct</td>
</tr>
<tr>
<td class="property_type">
<a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</td>
<td class="property_name"><a class="link" href="gstreamer-plugins-tee.html#GstTee--last-message" title="The “last-message” property">last-message</a></td>
<td class="property_flags">Read</td>
</tr>
<tr>
<td class="property_type"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gstreamer-plugins-tee.html#GstTee--num-src-pads" title="The “num-src-pads” property">num-src-pads</a></td>
<td class="property_flags">Read</td>
</tr>
<tr>
<td class="property_type"><a class="link" href="gstreamer-plugins-tee.html#GstTeePullMode" title="enum GstTeePullMode"><span class="type">GstTeePullMode</span></a></td>
<td class="property_name"><a class="link" href="gstreamer-plugins-tee.html#GstTee--pull-mode" title="The “pull-mode” property">pull-mode</a></td>
<td class="property_flags">Read / Write / Construct</td>
</tr>
<tr>
<td class="property_type"><a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="gstreamer-plugins-tee.html#GstTee--silent" title="The “silent” property">silent</a></td>
<td class="property_flags">Read / Write / Construct</td>
</tr>
</tbody>
</table></div>
</div>
<a name="GstTee"></a><div class="refsect1">
<a name="gstreamer-plugins-tee.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table 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="gstreamer-plugins-tee.html#GstTee-struct" title="struct GstTee">GstTee</a></td>
</tr>
<tr>
<td class="datatype_keyword">enum</td>
<td class="function_name"><a class="link" href="gstreamer-plugins-tee.html#GstTeePullMode" title="enum GstTeePullMode">GstTeePullMode</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gstreamer-plugins-tee.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen"> <a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GObject">GObject</a>
<span class="lineart">╰──</span> <a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
<span class="lineart">╰──</span> <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstObject.html">GstObject</a>
<span class="lineart">╰──</span> <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html">GstElement</a>
<span class="lineart">╰──</span> GstTee
</pre>
</div>
<div class="refsect1">
<a name="gstreamer-plugins-tee.description"></a><h2>Description</h2>
<p>Split data to multiple pads. Branching the data flow is useful when e.g.
capturing a video where the video is shown on the screen and also encoded and
written to a file. Another example is playing music and hooking up a
visualisation module.</p>
<p>One needs to use separate queue elements (or a multiqueue) in each branch to
provide separate threads for each branch. Otherwise a blocked dataflow in one
branch would stall the other branches.</p>
<div class="refsect2">
<a name="id-1.2.17.7.4"></a><h3>Example launch line</h3>
<div class="informalexample">
<table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<td class="listing_lines" align="right"><pre>1</pre></td>
<td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch filesrc location<span class="gtkdoc opt">=</span>song<span class="gtkdoc opt">.</span>ogg <span class="gtkdoc opt">!</span> decodebin2 <span class="gtkdoc opt">!</span> tee name<span class="gtkdoc opt">=</span>t <span class="gtkdoc opt">!</span> queue <span class="gtkdoc opt">!</span> autoaudiosink t<span class="gtkdoc opt">. !</span> queue <span class="gtkdoc opt">!</span> audioconvert <span class="gtkdoc opt">!</span> goom <span class="gtkdoc opt">!</span> videoconvert <span class="gtkdoc opt">!</span> autovideosink</pre></td>
</tr>
</tbody>
</table>
</div>
Play a song.ogg from local dir and render visualisations using the goom
element.
</div>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<div class="refsect2">
<a name="id-1.2.17.7.5.1"></a><h3>Element Information</h3>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">plugin</span></p></td>
<td>
<a class="link" href="gstreamer-plugins-plugin-coreelements.html#plugin-coreelements">coreelements</a>
</td>
</tr>
<tr>
<td><p><span class="term">author</span></p></td>
<td>Erik Walthinsen <omega@cse.ogi.edu>, Wim Taymans <wim@fluendo.com></td>
</tr>
<tr>
<td><p><span class="term">class</span></p></td>
<td>Generic</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="id-1.2.17.7.5.2"></a><h3>Element Pads</h3>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">name</span></p></td>
<td>sink</td>
</tr>
<tr>
<td><p><span class="term">direction</span></p></td>
<td>sink</td>
</tr>
<tr>
<td><p><span class="term">presence</span></p></td>
<td>always</td>
</tr>
<tr>
<td><p><span class="term">details</span></p></td>
<td>ANY</td>
</tr>
</tbody>
</table></div>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term">name</span></p></td>
<td>src_%u</td>
</tr>
<tr>
<td><p><span class="term">direction</span></p></td>
<td>source</td>
</tr>
<tr>
<td><p><span class="term">presence</span></p></td>
<td>request</td>
</tr>
<tr>
<td><p><span class="term">details</span></p></td>
<td>ANY</td>
</tr>
</tbody>
</table></div>
</div>
</div>
<p>
</p>
</div>
<div class="refsect1">
<a name="gstreamer-plugins-tee.functions_details"></a><h2>Functions</h2>
</div>
<div class="refsect1">
<a name="gstreamer-plugins-tee.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GstTee-struct"></a><h3>struct GstTee</h3>
<pre class="programlisting">struct GstTee;</pre>
<p>Opaque <a class="link" href="gstreamer-plugins-tee.html#GstTee"><span class="type">GstTee</span></a> data structure.</p>
</div>
<hr>
<div class="refsect2">
<a name="GstTeePullMode"></a><h3>enum GstTeePullMode</h3>
<p>The different ways that tee can behave in pull mode. <em class="parameter"><code>TEE_PULL_MODE_NEVER</code></em>
disables pull mode.</p>
<div class="refsect3">
<a name="id-1.2.17.9.3.4"></a><h4>Members</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="300px" class="enum_members_name">
<col class="enum_members_description">
<col width="200px" class="enum_members_annotations">
</colgroup>
<tbody>
<tr>
<td class="enum_member_name"><p><a name="GST-TEE-PULL-MODE-NEVER:CAPS"></a>GST_TEE_PULL_MODE_NEVER</p></td>
<td class="enum_member_description">
<p>Never activate in pull mode.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
<tr>
<td class="enum_member_name"><p><a name="GST-TEE-PULL-MODE-SINGLE:CAPS"></a>GST_TEE_PULL_MODE_SINGLE</p></td>
<td class="enum_member_description">
<p>Only one src pad can be active in pull mode.</p>
</td>
<td class="enum_member_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<div class="refsect1">
<a name="gstreamer-plugins-tee.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GstTee--alloc-pad"></a><h3>The <code class="literal">“alloc-pad”</code> property</h3>
<pre class="programlisting"> “alloc-pad” <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html"><span class="type">GstPad</span></a> *</pre>
<p>The pad ALLOCATION queries will be proxied to (unused).</p>
<p>Flags: Read / Write</p>
</div>
<hr>
<div class="refsect2">
<a name="GstTee--has-chain"></a><h3>The <code class="literal">“has-chain”</code> property</h3>
<pre class="programlisting"> “has-chain” <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>If the element can operate in push mode.</p>
<p>Flags: Read / Write / Construct</p>
<p>Default value: TRUE</p>
</div>
<hr>
<div class="refsect2">
<a name="GstTee--last-message"></a><h3>The <code class="literal">“last-message”</code> property</h3>
<pre class="programlisting"> “last-message” <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</pre>
<p>The message describing current status.</p>
<p>Flags: Read</p>
<p>Default value: NULL</p>
</div>
<hr>
<div class="refsect2">
<a name="GstTee--num-src-pads"></a><h3>The <code class="literal">“num-src-pads”</code> property</h3>
<pre class="programlisting"> “num-src-pads” <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>The number of source pads.</p>
<p>Flags: Read</p>
<p>Allowed values: >= 0</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstTee--pull-mode"></a><h3>The <code class="literal">“pull-mode”</code> property</h3>
<pre class="programlisting"> “pull-mode” <a class="link" href="gstreamer-plugins-tee.html#GstTeePullMode" title="enum GstTeePullMode"><span class="type">GstTeePullMode</span></a></pre>
<p>Behavior of tee in pull mode.</p>
<p>Flags: Read / Write / Construct</p>
<p>Default value: Never activate in pull mode</p>
</div>
<hr>
<div class="refsect2">
<a name="GstTee--silent"></a><h3>The <code class="literal">“silent”</code> property</h3>
<pre class="programlisting"> “silent” <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>Don't produce last_message events.</p>
<p>Flags: Read / Write / Construct</p>
<p>Default value: TRUE</p>
</div>
</div>
<div class="refsect1">
<a name="gstreamer-plugins-tee.see-also"></a><h2>See Also</h2>
<p><a class="link" href="gstreamer-plugins-identity.html#GstIdentity"><span class="type">GstIdentity</span></a></p>
</div>
</div>
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