docs/plugins/html/gst-plugins-good-plugins-gstrtpsession.html

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  20 <th width="100%" align="center">GStreamer Good Plugins 0.10 Plugins Reference Manual</th>
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  24 <a href="#gst-plugins-good-plugins-gstrtpsession.synopsis" class="shortcut">Top</a>
  25                    |
  26                   <a href="#gst-plugins-good-plugins-gstrtpsession.description" class="shortcut">Description</a>
  27                    |
  28                   <a href="#gst-plugins-good-plugins-gstrtpsession.object-hierarchy" class="shortcut">Object Hierarchy</a>
  29                    |
  30                   <a href="#gst-plugins-good-plugins-gstrtpsession.properties" class="shortcut">Properties</a>
  31                    |
  32                   <a href="#gst-plugins-good-plugins-gstrtpsession.signals" class="shortcut">Signals</a>
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  35 <div class="refentry">
  36 <a name="gst-plugins-good-plugins-gstrtpsession"></a><div class="titlepage"></div>
  37 <div class="refnamediv"><table width="100%"><tr>
  38 <td valign="top">
  39 <h2><span class="refentrytitle"><a name="gst-plugins-good-plugins-gstrtpsession.top_of_page"></a>gstrtpsession</span></h2>
  40 <p>gstrtpsession — Implement an RTP session</p>
  41 </td>
  42 <td valign="top" align="right"></td>
  43 </tr></table></div>
  44 <div class="refsynopsisdiv">
  45 <a name="gst-plugins-good-plugins-gstrtpsession.synopsis"></a><h2>Synopsis</h2>
  46 <a name="GstRtpSession"></a><pre class="synopsis">struct              <a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession-struct" title="struct GstRtpSession">GstRtpSession</a>;
  47 </pre>
  48 </div>
  49 <div class="refsect1">
  50 <a name="gst-plugins-good-plugins-gstrtpsession.object-hierarchy"></a><h2>Object Hierarchy</h2>
  51 <pre class="synopsis">
  52   <a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GObject">GObject</a>
  53    +----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstObject.html">GstObject</a>
  54          +----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html">GstElement</a>
  55                +----GstRtpSession
  56 </pre>
  57 </div>
  58 <div class="refsect1">
  59 <a name="gst-plugins-good-plugins-gstrtpsession.properties"></a><h2>Properties</h2>
  60 <pre class="synopsis">
  61   "<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession--bandwidth" title='The "bandwidth" property'>bandwidth</a>"                <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a>               : Read / Write
  62   "<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession--internal-session" title='The "internal-session" property'>internal-session</a>"         <span class="type">RTPSession</span>*           : Read
  63   "<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession--ntp-ns-base" title='The "ntp-ns-base" property'>ntp-ns-base</a>"              <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint64"><span class="type">guint64</span></a>               : Read / Write
  64   "<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession--num-active-sources" title='The "num-active-sources" property'>num-active-sources</a>"       <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a>                 : Read
  65   "<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession--num-sources" title='The "num-sources" property'>num-sources</a>"              <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a>                 : Read
  66   "<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession--rtcp-fraction" title='The "rtcp-fraction" property'>rtcp-fraction</a>"            <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a>               : Read / Write
  67   "<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession--sdes" title='The "sdes" property'>sdes</a>"                     <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstStructure.html#GstStructure"><span class="type">GstStructure</span></a>*         : Read / Write
  68   "<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession--rtcp-rr-bandwidth" title='The "rtcp-rr-bandwidth" property'>rtcp-rr-bandwidth</a>"        <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a>                  : Read / Write
  69   "<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession--rtcp-rs-bandwidth" title='The "rtcp-rs-bandwidth" property'>rtcp-rs-bandwidth</a>"        <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a>                  : Read / Write
  70   "<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession--use-pipeline-clock" title='The "use-pipeline-clock" property'>use-pipeline-clock</a>"       <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a>              : Read / Write
  71   "<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession--rtcp-min-interval" title='The "rtcp-min-interval" property'>rtcp-min-interval</a>"        <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint64"><span class="type">guint64</span></a>               : Read / Write
  72 </pre>
  73 </div>
  74 <div class="refsect1">
  75 <a name="gst-plugins-good-plugins-gstrtpsession.signals"></a><h2>Signals</h2>
  76 <pre class="synopsis">
  77   "<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession-clear-pt-map" title='The "clear-pt-map" signal'>clear-pt-map</a>"                                   : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-ACTION:CAPS"><code class="literal">Action</code></a>
  78   "<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession-on-bye-ssrc" title='The "on-bye-ssrc" signal'>on-bye-ssrc</a>"                                    : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">Run Last</code></a>
  79   "<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession-on-bye-timeout" title='The "on-bye-timeout" signal'>on-bye-timeout</a>"                                 : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">Run Last</code></a>
  80   "<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession-on-new-ssrc" title='The "on-new-ssrc" signal'>on-new-ssrc</a>"                                    : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">Run Last</code></a>
  81   "<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession-on-sender-timeout" title='The "on-sender-timeout" signal'>on-sender-timeout</a>"                              : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">Run Last</code></a>
  82   "<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession-on-ssrc-active" title='The "on-ssrc-active" signal'>on-ssrc-active</a>"                                 : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">Run Last</code></a>
  83   "<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession-on-ssrc-collision" title='The "on-ssrc-collision" signal'>on-ssrc-collision</a>"                              : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">Run Last</code></a>
  84   "<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession-on-ssrc-sdes" title='The "on-ssrc-sdes" signal'>on-ssrc-sdes</a>"                                   : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">Run Last</code></a>
  85   "<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession-on-ssrc-validated" title='The "on-ssrc-validated" signal'>on-ssrc-validated</a>"                              : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">Run Last</code></a>
  86   "<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession-on-timeout" title='The "on-timeout" signal'>on-timeout</a>"                                     : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">Run Last</code></a>
  87   "<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession-request-pt-map" title='The "request-pt-map" signal'>request-pt-map</a>"                                 : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">Run Last</code></a>
  88 </pre>
  89 </div>
  90 <div class="refsect1">
  91 <a name="gst-plugins-good-plugins-gstrtpsession.description"></a><h2>Description</h2>
  92 <p>
  93 The RTP session manager models one participant with a unique SSRC in an RTP
  94 session. This session can be used to send and receive RTP and RTCP packets.
  95 Based on what REQUEST pads are requested from the session manager, specific
  96 functionality can be activated.
  97 </p>
  98 <p>
  99 The session manager currently implements RFC 3550 including:
 100 </p>
 101 <div class="itemizedlist"><ul class="itemizedlist" type="disc">
 102 <li class="listitem"><p>RTP packet validation based on consecutive sequence numbers.</p></li>
 103 <li class="listitem"><p>Maintainance of the SSRC participant database.</p></li>
 104 <li class="listitem"><p>Keeping per participant statistics based on received RTCP packets.</p></li>
 105 <li class="listitem"><p>Scheduling of RR/SR RTCP packets.</p></li>
 106 </ul></div>
 107 <p>
 108 </p>
 109 <p>
 110 The gstrtpsession will not demux packets based on SSRC or payload type, nor will
 111 it correct for packet reordering and jitter. Use <span class="type">GstRtpsSrcDemux</span>,
 112 <a class="link" href="gst-plugins-good-plugins-gstrtpptdemux.html#GstRtpPtDemux"><span class="type">GstRtpPtDemux</span></a> and GstRtpJitterBuffer in addition to <a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession"><span class="type">GstRtpSession</span></a> to
 113 perform these tasks. It is usually a good idea to use <a class="link" href="gst-plugins-good-plugins-gstrtpbin.html#GstRtpBin"><span class="type">GstRtpBin</span></a>, which
 114 combines all these features in one element.
 115 </p>
 116 <p>
 117 To use <a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession"><span class="type">GstRtpSession</span></a> as an RTP receiver, request a recv_rtp_sink pad, which will
 118 automatically create recv_rtp_src pad. Data received on the recv_rtp_sink pad
 119 will be processed in the session and after being validated forwarded on the
 120 recv_rtp_src pad.
 121 </p>
 122 <p>
 123 To also use <a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession"><span class="type">GstRtpSession</span></a> as an RTCP receiver, request a recv_rtcp_sink pad,
 124 which will automatically create a sync_src pad. Packets received on the RTCP
 125 pad will be used by the session manager to update the stats and database of
 126 the other participants. SR packets will be forwarded on the sync_src pad
 127 so that they can be used to perform inter-stream synchronisation when needed.
 128 </p>
 129 <p>
 130 If you want the session manager to generate and send RTCP packets, request
 131 the send_rtcp_src pad. Packet pushed on this pad contain SR/RR RTCP reports
 132 that should be sent to all participants in the session.
 133 </p>
 134 <p>
 135 To use <a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession"><span class="type">GstRtpSession</span></a> as a sender, request a send_rtp_sink pad, which will
 136 automatically create a send_rtp_src pad. The session manager will modify the
 137 SSRC in the RTP packets to its own SSRC and wil forward the packets on the
 138 send_rtp_src pad after updating its internal state.
 139 </p>
 140 <p>
 141 The session manager needs the clock-rate of the payload types it is handling
 142 and will signal the <a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession-request-pt-map" title='The "request-pt-map" signal'><span class="type">"request-pt-map"</span></a> signal when it needs such a
 143 mapping. One can clear the cached values with the <a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession-clear-pt-map" title='The "clear-pt-map" signal'><span class="type">"clear-pt-map"</span></a>
 144 signal.
 145 </p>
 146 <p>
 147 </p>
 148 <div class="refsect2">
 149 <a name="idp12870320"></a><h3>Example pipelines</h3>
 150 <div class="informalexample">
 151   <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
 152     <tbody>
 153       <tr>
 154         <td class="listing_lines" align="right"><pre>1</pre></td>
 155         <td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch udpsrc port<span class="gtkdoc opt">=</span><span class="number">5000</span> caps<span class="gtkdoc opt">=</span><span class="string">&quot;application/x-rtp, ...&quot;</span> <span class="gtkdoc opt">! .</span>recv_rtp_sink gstrtpsession <span class="gtkdoc opt">.</span>recv_rtp_src <span class="gtkdoc opt">!</span> rtptheoradepay <span class="gtkdoc opt">!</span> theoradec <span class="gtkdoc opt">!</span> xvimagesink</pre></td>
 156       </tr>
 157     </tbody>
 158   </table>
 159 </div>
 160  Receive theora RTP packets from port 5000 and send them to the depayloader,
 161 decoder and display. Note that the application/x-rtp caps on udpsrc should be
 162 configured based on some negotiation process such as RTSP for this pipeline
 163 to work correctly.
 164 <div class="informalexample">
 165   <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
 166     <tbody>
 167       <tr>
 168         <td class="listing_lines" align="right"><pre>1
 169 2
 170 3</pre></td>
 171         <td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch udpsrc port<span class="gtkdoc opt">=</span><span class="number">5000</span> caps<span class="gtkdoc opt">=</span><span class="string">&quot;application/x-rtp, ...&quot;</span> <span class="gtkdoc opt">! .</span>recv_rtp_sink gstrtpsession name<span class="gtkdoc opt">=</span>session \
 172        <span class="gtkdoc opt">.</span>recv_rtp_src <span class="gtkdoc opt">!</span> rtptheoradepay <span class="gtkdoc opt">!</span> theoradec <span class="gtkdoc opt">!</span> xvimagesink \
 173     udpsrc port<span class="gtkdoc opt">=</span><span class="number">5001</span> caps<span class="gtkdoc opt">=</span><span class="string">&quot;application/x-rtcp&quot;</span> <span class="gtkdoc opt">!</span> session<span class="gtkdoc opt">.</span>recv_rtcp_sink</pre></td>
 174       </tr>
 175     </tbody>
 176   </table>
 177 </div>
 178  Receive theora RTP packets from port 5000 and send them to the depayloader,
 179 decoder and display. Receive RTCP packets from port 5001 and process them in
 180 the session manager.
 181 Note that the application/x-rtp caps on udpsrc should be
 182 configured based on some negotiation process such as RTSP for this pipeline
 183 to work correctly.
 184 <div class="informalexample">
 185   <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
 186     <tbody>
 187       <tr>
 188         <td class="listing_lines" align="right"><pre>1</pre></td>
 189         <td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch videotestsrc <span class="gtkdoc opt">!</span> theoraenc <span class="gtkdoc opt">!</span> rtptheorapay <span class="gtkdoc opt">! .</span>send_rtp_sink gstrtpsession <span class="gtkdoc opt">.</span>send_rtp_src <span class="gtkdoc opt">!</span> udpsink port<span class="gtkdoc opt">=</span><span class="number">5000</span></pre></td>
 190       </tr>
 191     </tbody>
 192   </table>
 193 </div>
 194  Send theora RTP packets through the session manager and out on UDP port
 195 5000.
 196 <div class="informalexample">
 197   <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
 198     <tbody>
 199       <tr>
 200         <td class="listing_lines" align="right"><pre>1
 201 2</pre></td>
 202         <td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch videotestsrc <span class="gtkdoc opt">!</span> theoraenc <span class="gtkdoc opt">!</span> rtptheorapay <span class="gtkdoc opt">! .</span>send_rtp_sink gstrtpsession name<span class="gtkdoc opt">=</span>session <span class="gtkdoc opt">.</span>send_rtp_src \
 203     <span class="gtkdoc opt">!</span> udpsink port<span class="gtkdoc opt">=</span><span class="number">5000</span>  session<span class="gtkdoc opt">.</span>send_rtcp_src <span class="gtkdoc opt">!</span> udpsink port<span class="gtkdoc opt">=</span><span class="number">5001</span></pre></td>
 204       </tr>
 205     </tbody>
 206   </table>
 207 </div>
 208  Send theora RTP packets through the session manager and out on UDP port
 209 5000. Send RTCP packets on port 5001. Note that this pipeline will not preroll
 210 correctly because the second udpsink will not preroll correctly (no RTCP
 211 packets are sent in the PAUSED state). Applications should manually set and
 212 keep (see <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html#gst-element-set-locked-state"><code class="function">gst_element_set_locked_state()</code></a>) the RTCP udpsink to the PLAYING state.
 213 </div>
 214 <p>
 215 </p>
 216 <p>
 217 Last reviewed on 2007-05-28 (0.10.5)
 218 </p>
 219 <div class="refsynopsisdiv">
 220 <h2>Synopsis</h2>
 221 <div class="refsect2">
 222 <a name="idp16437600"></a><h3>Element Information</h3>
 223 <div class="variablelist"><table border="0">
 224 <col align="left" valign="top">
 225 <tbody>
 226 <tr>
 227 <td><p><span class="term">plugin</span></p></td>
 228 <td>
 229             <a class="link" href="gst-plugins-good-plugins-plugin-gstrtpmanager.html#plugin-gstrtpmanager">gstrtpmanager</a>
 230           </td>
 231 </tr>
 232 <tr>
 233 <td><p><span class="term">author</span></p></td>
 234 <td>Wim Taymans &lt;wim.taymans@gmail.com&gt;</td>
 235 </tr>
 236 <tr>
 237 <td><p><span class="term">class</span></p></td>
 238 <td>Filter/Network/RTP</td>
 239 </tr>
 240 </tbody>
 241 </table></div>
 242 </div>
 243 <hr>
 244 <div class="refsect2">
 245 <a name="idp16445056"></a><h3>Element Pads</h3>
 246 <div class="variablelist"><table border="0">
 247 <col align="left" valign="top">
 248 <tbody>
 249 <tr>
 250 <td><p><span class="term">name</span></p></td>
 251 <td>recv_rtcp_sink</td>
 252 </tr>
 253 <tr>
 254 <td><p><span class="term">direction</span></p></td>
 255 <td>sink</td>
 256 </tr>
 257 <tr>
 258 <td><p><span class="term">presence</span></p></td>
 259 <td>request</td>
 260 </tr>
 261 <tr>
 262 <td><p><span class="term">details</span></p></td>
 263 <td>application/x-rtcp</td>
 264 </tr>
 265 </tbody>
 266 </table></div>
 267 <div class="variablelist"><table border="0">
 268 <col align="left" valign="top">
 269 <tbody>
 270 <tr>
 271 <td><p><span class="term">name</span></p></td>
 272 <td>recv_rtp_sink</td>
 273 </tr>
 274 <tr>
 275 <td><p><span class="term">direction</span></p></td>
 276 <td>sink</td>
 277 </tr>
 278 <tr>
 279 <td><p><span class="term">presence</span></p></td>
 280 <td>request</td>
 281 </tr>
 282 <tr>
 283 <td><p><span class="term">details</span></p></td>
 284 <td>application/x-rtp</td>
 285 </tr>
 286 </tbody>
 287 </table></div>
 288 <div class="variablelist"><table border="0">
 289 <col align="left" valign="top">
 290 <tbody>
 291 <tr>
 292 <td><p><span class="term">name</span></p></td>
 293 <td>send_rtp_sink</td>
 294 </tr>
 295 <tr>
 296 <td><p><span class="term">direction</span></p></td>
 297 <td>sink</td>
 298 </tr>
 299 <tr>
 300 <td><p><span class="term">presence</span></p></td>
 301 <td>request</td>
 302 </tr>
 303 <tr>
 304 <td><p><span class="term">details</span></p></td>
 305 <td>application/x-rtp</td>
 306 </tr>
 307 </tbody>
 308 </table></div>
 309 <div class="variablelist"><table border="0">
 310 <col align="left" valign="top">
 311 <tbody>
 312 <tr>
 313 <td><p><span class="term">name</span></p></td>
 314 <td>recv_rtp_src</td>
 315 </tr>
 316 <tr>
 317 <td><p><span class="term">direction</span></p></td>
 318 <td>source</td>
 319 </tr>
 320 <tr>
 321 <td><p><span class="term">presence</span></p></td>
 322 <td>sometimes</td>
 323 </tr>
 324 <tr>
 325 <td><p><span class="term">details</span></p></td>
 326 <td>application/x-rtp</td>
 327 </tr>
 328 </tbody>
 329 </table></div>
 330 <div class="variablelist"><table border="0">
 331 <col align="left" valign="top">
 332 <tbody>
 333 <tr>
 334 <td><p><span class="term">name</span></p></td>
 335 <td>send_rtp_src</td>
 336 </tr>
 337 <tr>
 338 <td><p><span class="term">direction</span></p></td>
 339 <td>source</td>
 340 </tr>
 341 <tr>
 342 <td><p><span class="term">presence</span></p></td>
 343 <td>sometimes</td>
 344 </tr>
 345 <tr>
 346 <td><p><span class="term">details</span></p></td>
 347 <td>application/x-rtp</td>
 348 </tr>
 349 </tbody>
 350 </table></div>
 351 <div class="variablelist"><table border="0">
 352 <col align="left" valign="top">
 353 <tbody>
 354 <tr>
 355 <td><p><span class="term">name</span></p></td>
 356 <td>sync_src</td>
 357 </tr>
 358 <tr>
 359 <td><p><span class="term">direction</span></p></td>
 360 <td>source</td>
 361 </tr>
 362 <tr>
 363 <td><p><span class="term">presence</span></p></td>
 364 <td>sometimes</td>
 365 </tr>
 366 <tr>
 367 <td><p><span class="term">details</span></p></td>
 368 <td>application/x-rtcp</td>
 369 </tr>
 370 </tbody>
 371 </table></div>
 372 <div class="variablelist"><table border="0">
 373 <col align="left" valign="top">
 374 <tbody>
 375 <tr>
 376 <td><p><span class="term">name</span></p></td>
 377 <td>send_rtcp_src</td>
 378 </tr>
 379 <tr>
 380 <td><p><span class="term">direction</span></p></td>
 381 <td>source</td>
 382 </tr>
 383 <tr>
 384 <td><p><span class="term">presence</span></p></td>
 385 <td>request</td>
 386 </tr>
 387 <tr>
 388 <td><p><span class="term">details</span></p></td>
 389 <td>application/x-rtcp</td>
 390 </tr>
 391 </tbody>
 392 </table></div>
 393 </div>
 394 </div>
 395 <p>
 396 </p>
 397 </div>
 398 <div class="refsect1">
 399 <a name="gst-plugins-good-plugins-gstrtpsession.details"></a><h2>Details</h2>
 400 <div class="refsect2">
 401 <a name="GstRtpSession-struct"></a><h3>struct GstRtpSession</h3>
 402 <pre class="programlisting">struct GstRtpSession;</pre>
 403 <p>
 404 </p>
 405 </div>
 406 </div>
 407 <div class="refsect1">
 408 <a name="gst-plugins-good-plugins-gstrtpsession.property-details"></a><h2>Property Details</h2>
 409 <div class="refsect2">
 410 <a name="GstRtpSession--bandwidth"></a><h3>The <code class="literal">"bandwidth"</code> property</h3>
 411 <pre class="programlisting">  "bandwidth"                <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a>               : Read / Write</pre>
 412 <p>The bandwidth of the session in bytes per second (0 for auto-discover).</p>
 413 <p>Allowed values: &gt;= 0</p>
 414 <p>Default value: 64000</p>
 415 </div>
 416 <hr>
 417 <div class="refsect2">
 418 <a name="GstRtpSession--internal-session"></a><h3>The <code class="literal">"internal-session"</code> property</h3>
 419 <pre class="programlisting">  "internal-session"         <span class="type">RTPSession</span>*           : Read</pre>
 420 <p>The internal RTPSession object.</p>
 421 </div>
 422 <hr>
 423 <div class="refsect2">
 424 <a name="GstRtpSession--ntp-ns-base"></a><h3>The <code class="literal">"ntp-ns-base"</code> property</h3>
 425 <pre class="programlisting">  "ntp-ns-base"              <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint64"><span class="type">guint64</span></a>               : Read / Write</pre>
 426 <p>The NTP base time corresponding to running_time 0 (deprecated).</p>
 427 <p>Default value: 0</p>
 428 </div>
 429 <hr>
 430 <div class="refsect2">
 431 <a name="GstRtpSession--num-active-sources"></a><h3>The <code class="literal">"num-active-sources"</code> property</h3>
 432 <pre class="programlisting">  "num-active-sources"       <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a>                 : Read</pre>
 433 <p>The number of active sources in the session.</p>
 434 <p>Default value: 0</p>
 435 </div>
 436 <hr>
 437 <div class="refsect2">
 438 <a name="GstRtpSession--num-sources"></a><h3>The <code class="literal">"num-sources"</code> property</h3>
 439 <pre class="programlisting">  "num-sources"              <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a>                 : Read</pre>
 440 <p>The number of sources in the session.</p>
 441 <p>Default value: 0</p>
 442 </div>
 443 <hr>
 444 <div class="refsect2">
 445 <a name="GstRtpSession--rtcp-fraction"></a><h3>The <code class="literal">"rtcp-fraction"</code> property</h3>
 446 <pre class="programlisting">  "rtcp-fraction"            <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gdouble"><span class="type">gdouble</span></a>               : Read / Write</pre>
 447 <p>The RTCP bandwidth of the session in bytes per second (or as a real fraction of the RTP bandwidth if &lt; 1.0).</p>
 448 <p>Allowed values: &gt;= 0</p>
 449 <p>Default value: 3200</p>
 450 </div>
 451 <hr>
 452 <div class="refsect2">
 453 <a name="GstRtpSession--sdes"></a><h3>The <code class="literal">"sdes"</code> property</h3>
 454 <pre class="programlisting">  "sdes"                     <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstStructure.html#GstStructure"><span class="type">GstStructure</span></a>*         : Read / Write</pre>
 455 <p>The SDES items of this session.</p>
 456 </div>
 457 <hr>
 458 <div class="refsect2">
 459 <a name="GstRtpSession--rtcp-rr-bandwidth"></a><h3>The <code class="literal">"rtcp-rr-bandwidth"</code> property</h3>
 460 <pre class="programlisting">  "rtcp-rr-bandwidth"        <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a>                  : Read / Write</pre>
 461 <p>The RTCP bandwidth used for receivers in bytes per second (-1 = default).</p>
 462 <p>Allowed values: &gt;= G_MAXULONG</p>
 463 <p>Default value: -1</p>
 464 </div>
 465 <hr>
 466 <div class="refsect2">
 467 <a name="GstRtpSession--rtcp-rs-bandwidth"></a><h3>The <code class="literal">"rtcp-rs-bandwidth"</code> property</h3>
 468 <pre class="programlisting">  "rtcp-rs-bandwidth"        <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a>                  : Read / Write</pre>
 469 <p>The RTCP bandwidth used for senders in bytes per second (-1 = default).</p>
 470 <p>Allowed values: &gt;= G_MAXULONG</p>
 471 <p>Default value: -1</p>
 472 </div>
 473 <hr>
 474 <div class="refsect2">
 475 <a name="GstRtpSession--use-pipeline-clock"></a><h3>The <code class="literal">"use-pipeline-clock"</code> property</h3>
 476 <pre class="programlisting">  "use-pipeline-clock"       <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a>              : Read / Write</pre>
 477 <p>Use the pipeline clock to set the NTP time in the RTCP SR messages.</p>
 478 <p>Default value: FALSE</p>
 479 </div>
 480 <hr>
 481 <div class="refsect2">
 482 <a name="GstRtpSession--rtcp-min-interval"></a><h3>The <code class="literal">"rtcp-min-interval"</code> property</h3>
 483 <pre class="programlisting">  "rtcp-min-interval"        <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint64"><span class="type">guint64</span></a>               : Read / Write</pre>
 484 <p>Minimum interval between Regular RTCP packet (in ns).</p>
 485 <p>Default value: 5000000000</p>
 486 </div>
 487 </div>
 488 <div class="refsect1">
 489 <a name="gst-plugins-good-plugins-gstrtpsession.signal-details"></a><h2>Signal Details</h2>
 490 <div class="refsect2">
 491 <a name="GstRtpSession-clear-pt-map"></a><h3>The <code class="literal">"clear-pt-map"</code> signal</h3>
 492 <pre class="programlisting"><span class="returnvalue">void</span>                user_function                      (<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession"><span class="type">GstRtpSession</span></a> *sess,
 493                                                         <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a>       user_data)      : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-ACTION:CAPS"><code class="literal">Action</code></a></pre>
 494 <p>
 495 Clear the cached pt-maps requested with <a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession-request-pt-map" title='The "request-pt-map" signal'><span class="type">"request-pt-map"</span></a>.
 496 </p>
 497 <div class="variablelist"><table border="0">
 498 <col align="left" valign="top">
 499 <tbody>
 500 <tr>
 501 <td><p><span class="term"><em class="parameter"><code>sess</code></em> :</span></p></td>
 502 <td>the object which received the signal</td>
 503 </tr>
 504 <tr>
 505 <td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
 506 <td>user data set when the signal handler was connected.</td>
 507 </tr>
 508 </tbody>
 509 </table></div>
 510 </div>
 511 <hr>
 512 <div class="refsect2">
 513 <a name="GstRtpSession-on-bye-ssrc"></a><h3>The <code class="literal">"on-bye-ssrc"</code> signal</h3>
 514 <pre class="programlisting"><span class="returnvalue">void</span>                user_function                      (<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession"><span class="type">GstRtpSession</span></a> *sess,
 515                                                         <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a>          ssrc,
 516                                                         <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a>       user_data)      : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">Run Last</code></a></pre>
 517 <p>
 518 Notify of an SSRC that became inactive because of a BYE packet.
 519 </p>
 520 <div class="variablelist"><table border="0">
 521 <col align="left" valign="top">
 522 <tbody>
 523 <tr>
 524 <td><p><span class="term"><em class="parameter"><code>sess</code></em> :</span></p></td>
 525 <td>the object which received the signal</td>
 526 </tr>
 527 <tr>
 528 <td><p><span class="term"><em class="parameter"><code>ssrc</code></em> :</span></p></td>
 529 <td>the SSRC</td>
 530 </tr>
 531 <tr>
 532 <td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
 533 <td>user data set when the signal handler was connected.</td>
 534 </tr>
 535 </tbody>
 536 </table></div>
 537 </div>
 538 <hr>
 539 <div class="refsect2">
 540 <a name="GstRtpSession-on-bye-timeout"></a><h3>The <code class="literal">"on-bye-timeout"</code> signal</h3>
 541 <pre class="programlisting"><span class="returnvalue">void</span>                user_function                      (<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession"><span class="type">GstRtpSession</span></a> *sess,
 542                                                         <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a>          ssrc,
 543                                                         <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a>       user_data)      : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">Run Last</code></a></pre>
 544 <p>
 545 Notify of an SSRC that has timed out because of BYE
 546 </p>
 547 <div class="variablelist"><table border="0">
 548 <col align="left" valign="top">
 549 <tbody>
 550 <tr>
 551 <td><p><span class="term"><em class="parameter"><code>sess</code></em> :</span></p></td>
 552 <td>the object which received the signal</td>
 553 </tr>
 554 <tr>
 555 <td><p><span class="term"><em class="parameter"><code>ssrc</code></em> :</span></p></td>
 556 <td>the SSRC</td>
 557 </tr>
 558 <tr>
 559 <td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
 560 <td>user data set when the signal handler was connected.</td>
 561 </tr>
 562 </tbody>
 563 </table></div>
 564 </div>
 565 <hr>
 566 <div class="refsect2">
 567 <a name="GstRtpSession-on-new-ssrc"></a><h3>The <code class="literal">"on-new-ssrc"</code> signal</h3>
 568 <pre class="programlisting"><span class="returnvalue">void</span>                user_function                      (<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession"><span class="type">GstRtpSession</span></a> *sess,
 569                                                         <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a>          ssrc,
 570                                                         <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a>       user_data)      : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">Run Last</code></a></pre>
 571 <p>
 572 Notify of a new SSRC that entered <em class="parameter"><code>session</code></em>.
 573 </p>
 574 <div class="variablelist"><table border="0">
 575 <col align="left" valign="top">
 576 <tbody>
 577 <tr>
 578 <td><p><span class="term"><em class="parameter"><code>sess</code></em> :</span></p></td>
 579 <td>the object which received the signal</td>
 580 </tr>
 581 <tr>
 582 <td><p><span class="term"><em class="parameter"><code>ssrc</code></em> :</span></p></td>
 583 <td>the SSRC</td>
 584 </tr>
 585 <tr>
 586 <td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
 587 <td>user data set when the signal handler was connected.</td>
 588 </tr>
 589 </tbody>
 590 </table></div>
 591 </div>
 592 <hr>
 593 <div class="refsect2">
 594 <a name="GstRtpSession-on-sender-timeout"></a><h3>The <code class="literal">"on-sender-timeout"</code> signal</h3>
 595 <pre class="programlisting"><span class="returnvalue">void</span>                user_function                      (<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession"><span class="type">GstRtpSession</span></a> *sess,
 596                                                         <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a>          ssrc,
 597                                                         <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a>       user_data)      : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">Run Last</code></a></pre>
 598 <p>
 599 Notify of a sender SSRC that has timed out and became a receiver
 600 </p>
 601 <div class="variablelist"><table border="0">
 602 <col align="left" valign="top">
 603 <tbody>
 604 <tr>
 605 <td><p><span class="term"><em class="parameter"><code>sess</code></em> :</span></p></td>
 606 <td>the object which received the signal</td>
 607 </tr>
 608 <tr>
 609 <td><p><span class="term"><em class="parameter"><code>ssrc</code></em> :</span></p></td>
 610 <td>the SSRC</td>
 611 </tr>
 612 <tr>
 613 <td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
 614 <td>user data set when the signal handler was connected.</td>
 615 </tr>
 616 </tbody>
 617 </table></div>
 618 </div>
 619 <hr>
 620 <div class="refsect2">
 621 <a name="GstRtpSession-on-ssrc-active"></a><h3>The <code class="literal">"on-ssrc-active"</code> signal</h3>
 622 <pre class="programlisting"><span class="returnvalue">void</span>                user_function                      (<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession"><span class="type">GstRtpSession</span></a> *gstrtpsession,
 623                                                         <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a>          arg1,
 624                                                         <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a>       user_data)          : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">Run Last</code></a></pre>
 625 <p>
 626 </p>
 627 <div class="variablelist"><table border="0">
 628 <col align="left" valign="top">
 629 <tbody>
 630 <tr>
 631 <td><p><span class="term"><em class="parameter"><code>gstrtpsession</code></em> :</span></p></td>
 632 <td>the object which received the signal.</td>
 633 </tr>
 634 <tr>
 635 <td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
 636 <td>user data set when the signal handler was connected.</td>
 637 </tr>
 638 </tbody>
 639 </table></div>
 640 </div>
 641 <hr>
 642 <div class="refsect2">
 643 <a name="GstRtpSession-on-ssrc-collision"></a><h3>The <code class="literal">"on-ssrc-collision"</code> signal</h3>
 644 <pre class="programlisting"><span class="returnvalue">void</span>                user_function                      (<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession"><span class="type">GstRtpSession</span></a> *gstrtpsession,
 645                                                         <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a>          arg1,
 646                                                         <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a>       user_data)          : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">Run Last</code></a></pre>
 647 <p>
 648 </p>
 649 <div class="variablelist"><table border="0">
 650 <col align="left" valign="top">
 651 <tbody>
 652 <tr>
 653 <td><p><span class="term"><em class="parameter"><code>gstrtpsession</code></em> :</span></p></td>
 654 <td>the object which received the signal.</td>
 655 </tr>
 656 <tr>
 657 <td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
 658 <td>user data set when the signal handler was connected.</td>
 659 </tr>
 660 </tbody>
 661 </table></div>
 662 </div>
 663 <hr>
 664 <div class="refsect2">
 665 <a name="GstRtpSession-on-ssrc-sdes"></a><h3>The <code class="literal">"on-ssrc-sdes"</code> signal</h3>
 666 <pre class="programlisting"><span class="returnvalue">void</span>                user_function                      (<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession"><span class="type">GstRtpSession</span></a> *session,
 667                                                         <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a>          src,
 668                                                         <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a>       user_data)      : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">Run Last</code></a></pre>
 669 <p>
 670 Notify that a new SDES was received for SSRC.
 671 </p>
 672 <div class="variablelist"><table border="0">
 673 <col align="left" valign="top">
 674 <tbody>
 675 <tr>
 676 <td><p><span class="term"><em class="parameter"><code>session</code></em> :</span></p></td>
 677 <td>the object which received the signal</td>
 678 </tr>
 679 <tr>
 680 <td><p><span class="term"><em class="parameter"><code>src</code></em> :</span></p></td>
 681 <td>the SSRC</td>
 682 </tr>
 683 <tr>
 684 <td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
 685 <td>user data set when the signal handler was connected.</td>
 686 </tr>
 687 </tbody>
 688 </table></div>
 689 </div>
 690 <hr>
 691 <div class="refsect2">
 692 <a name="GstRtpSession-on-ssrc-validated"></a><h3>The <code class="literal">"on-ssrc-validated"</code> signal</h3>
 693 <pre class="programlisting"><span class="returnvalue">void</span>                user_function                      (<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession"><span class="type">GstRtpSession</span></a> *gstrtpsession,
 694                                                         <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a>          arg1,
 695                                                         <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a>       user_data)          : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">Run Last</code></a></pre>
 696 <p>
 697 </p>
 698 <div class="variablelist"><table border="0">
 699 <col align="left" valign="top">
 700 <tbody>
 701 <tr>
 702 <td><p><span class="term"><em class="parameter"><code>gstrtpsession</code></em> :</span></p></td>
 703 <td>the object which received the signal.</td>
 704 </tr>
 705 <tr>
 706 <td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
 707 <td>user data set when the signal handler was connected.</td>
 708 </tr>
 709 </tbody>
 710 </table></div>
 711 </div>
 712 <hr>
 713 <div class="refsect2">
 714 <a name="GstRtpSession-on-timeout"></a><h3>The <code class="literal">"on-timeout"</code> signal</h3>
 715 <pre class="programlisting"><span class="returnvalue">void</span>                user_function                      (<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession"><span class="type">GstRtpSession</span></a> *sess,
 716                                                         <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a>          ssrc,
 717                                                         <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a>       user_data)      : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">Run Last</code></a></pre>
 718 <p>
 719 Notify of an SSRC that has timed out
 720 </p>
 721 <div class="variablelist"><table border="0">
 722 <col align="left" valign="top">
 723 <tbody>
 724 <tr>
 725 <td><p><span class="term"><em class="parameter"><code>sess</code></em> :</span></p></td>
 726 <td>the object which received the signal</td>
 727 </tr>
 728 <tr>
 729 <td><p><span class="term"><em class="parameter"><code>ssrc</code></em> :</span></p></td>
 730 <td>the SSRC</td>
 731 </tr>
 732 <tr>
 733 <td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
 734 <td>user data set when the signal handler was connected.</td>
 735 </tr>
 736 </tbody>
 737 </table></div>
 738 </div>
 739 <hr>
 740 <div class="refsect2">
 741 <a name="GstRtpSession-request-pt-map"></a><h3>The <code class="literal">"request-pt-map"</code> signal</h3>
 742 <pre class="programlisting"><a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstCaps.html#GstCaps"><span class="returnvalue">GstCaps</span></a>*            user_function                      (<a class="link" href="gst-plugins-good-plugins-gstrtpsession.html#GstRtpSession"><span class="type">GstRtpSession</span></a> *sess,
 743                                                         <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a>          pt,
 744                                                         <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a>       user_data)      : <a href="http://library.gnome.org/devel/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">Run Last</code></a></pre>
 745 <p>
 746 Request the payload type as <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstCaps.html#GstCaps"><span class="type">GstCaps</span></a> for <em class="parameter"><code>pt</code></em>.
 747 </p>
 748 <div class="variablelist"><table border="0">
 749 <col align="left" valign="top">
 750 <tbody>
 751 <tr>
 752 <td><p><span class="term"><em class="parameter"><code>sess</code></em> :</span></p></td>
 753 <td>the object which received the signal</td>
 754 </tr>
 755 <tr>
 756 <td><p><span class="term"><em class="parameter"><code>pt</code></em> :</span></p></td>
 757 <td>the pt</td>
 758 </tr>
 759 <tr>
 760 <td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
 761 <td>user data set when the signal handler was connected.</td>
 762 </tr>
 763 </tbody>
 764 </table></div>
 765 </div>
 766 </div>
 767 <div class="refsect1">
 768 <a name="gst-plugins-good-plugins-gstrtpsession.see-also"></a><h2>See Also</h2>
 769 gstrtpjitterbuffer, gstrtpbin, gstrtpptdemux, gstrtpssrcdemux
 770 </div>
 771 </div>
 772 <div class="footer">
 773 <hr>
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