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<title>concat: GStreamer Core Plugins 1.0 Plugins Reference Manual</title>
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<a name="gstreamer-plugins-concat"></a><div class="titlepage"></div>
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<td valign="top">
<h2><span class="refentrytitle"><a name="gstreamer-plugins-concat.top_of_page"></a>concat</span></h2>
<p>concat</p>
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<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="gstreamer-plugins-concat.properties"></a><h2>Properties</h2>
<div class="informaltable"><table class="informaltable" 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="../gstreamer-1.0/GstPad.html"><span class="type">GstPad</span></a> *</td>
<td class="property_name"><a class="link" href="gstreamer-plugins-concat.html#GstConcat--active-pad" title="The “active-pad” property">active-pad</a></td>
<td class="property_flags">Read</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="gstreamer-plugins-concat.html#GstConcat--adjust-base" title="The “adjust-base” property">adjust-base</a></td>
<td class="property_flags">Read / Write</td>
</tr>
</tbody>
</table></div>
</div>
<a name="GstConcat"></a><div class="refsect1">
<a name="gstreamer-plugins-concat.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="gstreamer-plugins-concat.html#GstConcat-struct" title="struct GstConcat">GstConcat</a></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gstreamer-plugins-concat.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen"> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject">GObject</a>
<span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
<span class="lineart">╰──</span> <a href="../gstreamer-1.0/GstObject.html">GstObject</a>
<span class="lineart">╰──</span> <a href="../gstreamer-1.0/GstElement.html">GstElement</a>
<span class="lineart">╰──</span> GstConcat
</pre>
</div>
<div class="refsect1">
<a name="gstreamer-plugins-concat.description"></a><h2>Description</h2>
<p>Concatenates streams together to one continous stream.</p>
<p>All streams but the current one are blocked until the current one
finished with <a href="../gstreamer-1.0/GstEvent.html#GST-EVENT-EOS:CAPS"><code class="literal">GST_EVENT_EOS</code></a>. Then the next stream is enabled, while
keeping the running time continous for <a href="../gstreamer-1.0/gstreamer-GstFormat.html#GST-FORMAT-TIME:CAPS"><code class="literal">GST_FORMAT_TIME</code></a> segments or
keeping the segment continous for <a href="../gstreamer-1.0/gstreamer-GstFormat.html#GST-FORMAT-BYTES:CAPS"><code class="literal">GST_FORMAT_BYTES</code></a> segments.</p>
<p>Streams are switched in the order in which the sinkpads were requested.</p>
<p>By default, the stream segment's base values are adjusted to ensure
the segment transitions between streams are continuous. In some cases,
it may be desirable to turn off these adjustments (for example, because
another downstream element like a streamsynchronizer adjusts the base
values on its own). The adjust-base property can be used for this purpose.</p>
<div class="refsect2">
<a name="id-1.2.3.7.6"></a><h3>Example launch line</h3>
<div class="informalexample"><pre class="programlisting">
gst-launch-1.0 concat name=c ! xvimagesink videotestsrc num-buffers=100 ! c. videotestsrc num-buffers=100 pattern=ball ! c.
</pre></div> Plays two video streams one after another.
</div>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<div class="refsect2">
<a name="id-1.2.3.7.7.1"></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>Sebastian Dröge <sebastian@centricular.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-1.2.3.7.7.2"></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_%u</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>request</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</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>always</td>
</tr>
<tr>
<td><p><span class="term">details</span></p></td>
<td>ANY</td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<div class="refsect1">
<a name="gstreamer-plugins-concat.functions_details"></a><h2>Functions</h2>
<p></p>
</div>
<div class="refsect1">
<a name="gstreamer-plugins-concat.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GstConcat-struct"></a><h3>struct GstConcat</h3>
<pre class="programlisting">struct GstConcat;</pre>
<p>The private concat structure</p>
</div>
</div>
<div class="refsect1">
<a name="gstreamer-plugins-concat.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GstConcat--active-pad"></a><h3>The <code class="literal">“active-pad”</code> property</h3>
<pre class="programlisting"> “active-pad” <a href="../gstreamer-1.0/GstPad.html"><span class="type">GstPad</span></a> *</pre>
<p>Currently active src pad.</p>
<p>Flags: Read</p>
</div>
<hr>
<div class="refsect2">
<a name="GstConcat--adjust-base"></a><h3>The <code class="literal">“adjust-base”</code> property</h3>
<pre class="programlisting"> “adjust-base” <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>Adjust the base value of segments to ensure they are adjacent.</p>
<p>Flags: Read / Write</p>
<p>Default value: TRUE</p>
</div>
</div>
<div class="refsect1">
<a name="gstreamer-plugins-concat.see-also"></a><h2>See Also</h2>
<p><a class="link" href="gstreamer-plugins-funnel.html#GstFunnel"><span class="type">GstFunnel</span></a></p>
</div>
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