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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>gstrtpptdemux: GStreamer Good Plugins 0.10 Plugins Reference Manual</title>
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<div class="refentry">
<a name="gst-plugins-good-plugins-gstrtpptdemux"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="gst-plugins-good-plugins-gstrtpptdemux.top_of_page"></a>gstrtpptdemux</span></h2>
<p>gstrtpptdemux — Parses codec streams transmitted in the same RTP session</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-gstrtpptdemux.signals"></a><h2>Signals</h2>
<div class="informaltable"><table border="0">
<colgroup>
<col width="150px" class="signals_return">
<col width="300px" class="signals_name">
<col width="200px" class="signals_flags">
</colgroup>
<tbody>
<tr>
<td class="signal_type"><span class="returnvalue">void</span></td>
<td class="signal_name"><a class="link" href="gst-plugins-good-plugins-gstrtpptdemux.html#GstRtpPtDemux-clear-pt-map" title="The “clear-pt-map” signal">clear-pt-map</a></td>
<td class="signal_flags"><a href="/usr/share/gtk-doc/html/gobject/gobject-Signals.html#G-SIGNAL-ACTION:CAPS">Action</a></td>
</tr>
<tr>
<td class="signal_type"><span class="returnvalue">void</span></td>
<td class="signal_name"><a class="link" href="gst-plugins-good-plugins-gstrtpptdemux.html#GstRtpPtDemux-new-payload-type" title="The “new-payload-type” signal">new-payload-type</a></td>
<td class="signal_flags"><a href="/usr/share/gtk-doc/html/gobject/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS">Run Last</a></td>
</tr>
<tr>
<td class="signal_type"><span class="returnvalue">void</span></td>
<td class="signal_name"><a class="link" href="gst-plugins-good-plugins-gstrtpptdemux.html#GstRtpPtDemux-payload-type-change" title="The “payload-type-change” signal">payload-type-change</a></td>
<td class="signal_flags"><a href="/usr/share/gtk-doc/html/gobject/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS">Run Last</a></td>
</tr>
<tr>
<td class="signal_type">
<a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstCaps.html#GstCaps"><span class="returnvalue">GstCaps</span></a>*</td>
<td class="signal_name"><a class="link" href="gst-plugins-good-plugins-gstrtpptdemux.html#GstRtpPtDemux-request-pt-map" title="The “request-pt-map” signal">request-pt-map</a></td>
<td class="signal_flags"><a href="/usr/share/gtk-doc/html/gobject/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS">Run Last</a></td>
</tr>
</tbody>
</table></div>
</div>
<a name="GstRtpPtDemux"></a><div class="refsect1">
<a name="gst-plugins-good-plugins-gstrtpptdemux.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="gst-plugins-good-plugins-gstrtpptdemux.html#GstRtpPtDemux-struct" title="struct GstRtpPtDemux">GstRtpPtDemux</a></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-gstrtpptdemux.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/gstreamer-0.10/GstObject.html">GstObject</a>
        <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstElement.html">GstElement</a>
            <span class="lineart">╰──</span> GstRtpPtDemux
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-gstrtpptdemux.description"></a><h2>Description</h2>
<p>gstrtpptdemux acts as a demuxer for RTP packets based on the payload type of
the packets. Its main purpose is to allow an application to easily receive
and decode an RTP stream with multiple payload types.</p>
<p>For each payload type that is detected, a new pad will be created and the
<a class="link" href="gst-plugins-good-plugins-gstrtpptdemux.html#GstRtpPtDemux-new-payload-type" title="The “new-payload-type” signal"><span class="type">“new-payload-type”</span></a> signal will be emitted. When the payload for
the RTP stream changes, the <a class="link" href="gst-plugins-good-plugins-gstrtpptdemux.html#GstRtpPtDemux-payload-type-change" title="The “payload-type-change” signal"><span class="type">“payload-type-change”</span></a> signal will be
emitted.</p>
<p>The element will try to set complete and unique application/x-rtp caps on the
outgoing buffers and pads based on the result of the
<a class="link" href="gst-plugins-good-plugins-gstrtpptdemux.html#GstRtpPtDemux-request-pt-map" title="The “request-pt-map” signal"><span class="type">“request-pt-map”</span></a> signal.</p>
<div class="refsect2">
<a name="id-1.2.74.7.5"></a><h3>Example pipelines</h3>
<div class="informalexample"><pre class="programlisting">
gst-launch udpsrc caps="application/x-rtp" ! gstrtpptdemux ! fakesink
</pre></div> Takes an RTP stream and send the RTP packets with the first detected
payload type to fakesink, discarding the other payload types.
</div>
<p>Last reviewed on 2007-05-28 (0.10.5)</p>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<div class="refsect2">
<a name="id-1.2.74.7.6.1.1"></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="gst-plugins-good-plugins-plugin-gstrtpmanager.html#plugin-gstrtpmanager">gstrtpmanager</a>
          </td>
</tr>
<tr>
<td><p><span class="term">author</span></p></td>
<td>Kai Vehmanen &lt;kai.vehmanen@nokia.com&gt;</td>
</tr>
<tr>
<td><p><span class="term">class</span></p></td>
<td>Demux/Network/RTP</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="id-1.2.74.7.6.1.2"></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>application/x-rtp</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_%d</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>sometimes</td>
</tr>
<tr>
<td><p><span class="term">details</span></p></td>
<td>application/x-rtp, payload=(int)[ 0, 255 ]</td>
</tr>
</tbody>
</table></div>
</div>
</div>
<p>
</p>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-gstrtpptdemux.functions_details"></a><h2>Functions</h2>
<p></p>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-gstrtpptdemux.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GstRtpPtDemux-struct"></a><h3>struct GstRtpPtDemux</h3>
<pre class="programlisting">struct GstRtpPtDemux;</pre>
<p>
</p>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-gstrtpptdemux.signal-details"></a><h2>Signal Details</h2>
<div class="refsect2">
<a name="GstRtpPtDemux-clear-pt-map"></a><h3>The <code class="literal">“clear-pt-map”</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
user_function (<a class="link" href="gst-plugins-good-plugins-gstrtpptdemux.html#GstRtpPtDemux"><span class="type">GstRtpPtDemux</span></a> *demux,
               <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a>       user_data)</pre>
<p>The application can call this signal to instruct the element to discard the
currently cached payload type map.</p>
<div class="refsect3">
<a name="id-1.2.74.10.2.5"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>demux</p></td>
<td class="parameter_description"><p>the object which received the signal</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data set when the signal handler was connected.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p>Flags: <a href="/usr/share/gtk-doc/html/gobject/gobject-Signals.html#G-SIGNAL-ACTION:CAPS">Action</a></p>
</div>
<hr>
<div class="refsect2">
<a name="GstRtpPtDemux-new-payload-type"></a><h3>The <code class="literal">“new-payload-type”</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
user_function (<a class="link" href="gst-plugins-good-plugins-gstrtpptdemux.html#GstRtpPtDemux"><span class="type">GstRtpPtDemux</span></a> *demux,
               <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a>          pt,
               <a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstPad.html"><span class="type">GstPad</span></a>        *pad,
               <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a>       user_data)</pre>
<p>Emited when a new payload type pad has been created in <em class="parameter"><code>demux</code></em>
.</p>
<div class="refsect3">
<a name="id-1.2.74.10.3.5"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>demux</p></td>
<td class="parameter_description"><p>the object which received the signal</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>pt</p></td>
<td class="parameter_description"><p>the payload type</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>pad</p></td>
<td class="parameter_description"><p>the pad with the new payload</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data set when the signal handler was connected.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p>Flags: <a href="/usr/share/gtk-doc/html/gobject/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS">Run Last</a></p>
</div>
<hr>
<div class="refsect2">
<a name="GstRtpPtDemux-payload-type-change"></a><h3>The <code class="literal">“payload-type-change”</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
user_function (<a class="link" href="gst-plugins-good-plugins-gstrtpptdemux.html#GstRtpPtDemux"><span class="type">GstRtpPtDemux</span></a> *demux,
               <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a>          pt,
               <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a>       user_data)</pre>
<p>Emited when the payload type changed.</p>
<div class="refsect3">
<a name="id-1.2.74.10.4.5"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>demux</p></td>
<td class="parameter_description"><p>the object which received the signal</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>pt</p></td>
<td class="parameter_description"><p>the new payload type</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data set when the signal handler was connected.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p>Flags: <a href="/usr/share/gtk-doc/html/gobject/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS">Run Last</a></p>
</div>
<hr>
<div class="refsect2">
<a name="GstRtpPtDemux-request-pt-map"></a><h3>The <code class="literal">“request-pt-map”</code> signal</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstCaps.html#GstCaps"><span class="returnvalue">GstCaps</span></a>*
user_function (<a class="link" href="gst-plugins-good-plugins-gstrtpptdemux.html#GstRtpPtDemux"><span class="type">GstRtpPtDemux</span></a> *demux,
               <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a>          pt,
               <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a>       user_data)</pre>
<p>Request the payload type as <a href="/usr/share/gtk-doc/html/gstreamer-0.10/gstreamer-GstCaps.html#GstCaps"><span class="type">GstCaps</span></a> for <em class="parameter"><code>pt</code></em>
.</p>
<div class="refsect3">
<a name="id-1.2.74.10.5.5"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>demux</p></td>
<td class="parameter_description"><p>the object which received the signal</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>pt</p></td>
<td class="parameter_description"><p>the payload type</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>user_data</p></td>
<td class="parameter_description"><p>user data set when the signal handler was connected.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p>Flags: <a href="/usr/share/gtk-doc/html/gobject/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS">Run Last</a></p>
</div>
</div>
</div>
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