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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<head>
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<title>tee</title>
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<th width="100%" align="center">GStreamer Core Plugins 1.0 Plugins Reference Manual</th>
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<tr><td colspan="5" class="shortcuts">
<a href="#gstreamer-plugins-tee.synopsis" class="shortcut">Top</a>
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<a href="#gstreamer-plugins-tee.description" class="shortcut">Description</a>
|
<a href="#gstreamer-plugins-tee.object-hierarchy" class="shortcut">Object Hierarchy</a>
|
<a href="#gstreamer-plugins-tee.properties" class="shortcut">Properties</a>
</td></tr>
</table>
<div class="refentry">
<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 valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv">
<a name="gstreamer-plugins-tee.synopsis"></a><h2>Synopsis</h2>
<a name="GstTee"></a><pre class="synopsis">struct <a class="link" href="gstreamer-plugins-tee.html#GstTee-struct" title="struct GstTee">GstTee</a>;
enum <a class="link" href="gstreamer-plugins-tee.html#GstTeePullMode" title="enum GstTeePullMode">GstTeePullMode</a>;
</pre>
</div>
<div class="refsect1">
<a name="gstreamer-plugins-tee.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="synopsis">
<a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GObject">GObject</a>
+----<a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
+----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstObject.html">GstObject</a>
+----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html">GstElement</a>
+----GstTee
</pre>
</div>
<div class="refsect1">
<a name="gstreamer-plugins-tee.properties"></a><h2>Properties</h2>
<pre class="synopsis">
"<a class="link" href="gstreamer-plugins-tee.html#GstTee--alloc-pad" title='The "alloc-pad" property'>alloc-pad</a>" <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstPad.html"><span class="type">GstPad</span></a>* : Read / Write
"<a class="link" href="gstreamer-plugins-tee.html#GstTee--has-chain" title='The "has-chain" property'>has-chain</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write / Construct
"<a class="link" href="gstreamer-plugins-tee.html#GstTee--last-message" title='The "last-message" property'>last-message</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a>* : Read
"<a class="link" href="gstreamer-plugins-tee.html#GstTee--num-src-pads" title='The "num-src-pads" property'>num-src-pads</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read
"<a class="link" href="gstreamer-plugins-tee.html#GstTee--pull-mode" title='The "pull-mode" property'>pull-mode</a>" <a class="link" href="gstreamer-plugins-tee.html#GstTeePullMode" title="enum GstTeePullMode"><span class="type">GstTeePullMode</span></a> : Read / Write / Construct
"<a class="link" href="gstreamer-plugins-tee.html#GstTee--silent" title='The "silent" property'>silent</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a> : Read / Write / Construct
</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>
<p>
</p>
<div class="refsect2">
<a name="id-1.2.16.6.4.1"></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>
<p>
</p>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<div class="refsect2">
<a name="id-1.2.16.6.5.1"></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-1.2.16.6.5.2"></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.details"></a><h2>Details</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>
<pre class="programlisting">typedef enum {
GST_TEE_PULL_MODE_NEVER,
GST_TEE_PULL_MODE_SINGLE,
} GstTeePullMode;
</pre>
<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="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><a name="GST-TEE-PULL-MODE-NEVER:CAPS"></a><span class="term"><code class="literal">GST_TEE_PULL_MODE_NEVER</code></span></p></td>
<td>Never activate in pull mode.
</td>
</tr>
<tr>
<td><p><a name="GST-TEE-PULL-MODE-SINGLE:CAPS"></a><span class="term"><code class="literal">GST_TEE_PULL_MODE_SINGLE</code></span></p></td>
<td>Only one src pad can be active in pull mode.
</td>
</tr>
</tbody>
</table></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>* : Read / Write</pre>
<p>The pad ALLOCATION queries will be proxied to (unused).</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> : Read / Write / Construct</pre>
<p>If the element can operate in push mode.</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>* : Read</pre>
<p>The message describing current status.</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> : Read</pre>
<p>The number of source pads.</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> : Read / Write / Construct</pre>
<p>Behavior of tee in pull mode.</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> : Read / Write / Construct</pre>
<p>Don't produce last_message events.</p>
<p>Default value: TRUE</p>
</div>
</div>
<div class="refsect1">
<a name="gstreamer-plugins-tee.see-also"></a><h2>See Also</h2>
<a class="link" href="gstreamer-plugins-identity.html#GstIdentity"><span class="type">GstIdentity</span></a>
</div>
</div>
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