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| <div class="refentry"> |
| <a name="gst-plugins-good-plugins-rtprtxsend"></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-rtprtxsend.top_of_page"></a>rtprtxsend</span></h2> |
| <p>rtprtxsend</p> |
| </td> |
| <td class="gallery_image" valign="top" align="right"></td> |
| </tr></table></div> |
| <div class="refsect1"> |
| <a name="gst-plugins-good-plugins-rtprtxsend.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="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a></td> |
| <td class="property_name"><a class="link" href="gst-plugins-good-plugins-rtprtxsend.html#GstRtpRtxSend--rtx-payload-type" title="The “rtx-payload-type” property">rtx-payload-type</a></td> |
| <td class="property_flags">Read / Write</td> |
| </tr> |
| <tr> |
| <td class="property_type"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a></td> |
| <td class="property_name"><a class="link" href="gst-plugins-good-plugins-rtprtxsend.html#GstRtpRtxSend--max-size-time" title="The “max-size-time” property">max-size-time</a></td> |
| <td class="property_flags">Read / Write</td> |
| </tr> |
| <tr> |
| <td class="property_type"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a></td> |
| <td class="property_name"><a class="link" href="gst-plugins-good-plugins-rtprtxsend.html#GstRtpRtxSend--max-size-packets" title="The “max-size-packets” property">max-size-packets</a></td> |
| <td class="property_flags">Read / Write</td> |
| </tr> |
| <tr> |
| <td class="property_type"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a></td> |
| <td class="property_name"><a class="link" href="gst-plugins-good-plugins-rtprtxsend.html#GstRtpRtxSend--num-rtx-requests" title="The “num-rtx-requests” property">num-rtx-requests</a></td> |
| <td class="property_flags">Read</td> |
| </tr> |
| <tr> |
| <td class="property_type"><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a></td> |
| <td class="property_name"><a class="link" href="gst-plugins-good-plugins-rtprtxsend.html#GstRtpRtxSend--num-rtx-packets" title="The “num-rtx-packets” property">num-rtx-packets</a></td> |
| <td class="property_flags">Read</td> |
| </tr> |
| <tr> |
| <td class="property_type"> |
| <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstStructure.html"><span class="type">GstStructure</span></a> *</td> |
| <td class="property_name"><a class="link" href="gst-plugins-good-plugins-rtprtxsend.html#GstRtpRtxSend--payload-type-map" title="The “payload-type-map” property">payload-type-map</a></td> |
| <td class="property_flags">Read / Write</td> |
| </tr> |
| <tr> |
| <td class="property_type"> |
| <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstStructure.html"><span class="type">GstStructure</span></a> *</td> |
| <td class="property_name"><a class="link" href="gst-plugins-good-plugins-rtprtxsend.html#GstRtpRtxSend--ssrc-map" title="The “ssrc-map” property">ssrc-map</a></td> |
| <td class="property_flags">Write</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <a name="GstRtpRtxSend"></a><div class="refsect1"> |
| <a name="gst-plugins-good-plugins-rtprtxsend.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-rtprtxsend.html#GstRtpRtxSend-struct" title="struct GstRtpRtxSend">GstRtpRtxSend</a></td> |
| </tr></tbody> |
| </table></div> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-good-plugins-rtprtxsend.object-hierarchy"></a><h2>Object Hierarchy</h2> |
| <pre class="screen"> <a href="https://developer.gnome.org/gobject/unstable/gobject-The-Base-Object-Type.html#GObject">GObject</a> |
| <span class="lineart">╰──</span> <a href="https://developer.gnome.org/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> GstRtpRtxSend |
| </pre> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-good-plugins-rtprtxsend.description"></a><h2>Description</h2> |
| <p>See <a class="link" href="gst-plugins-good-plugins-rtprtxreceive.html#GstRtpRtxReceive"><span class="type">GstRtpRtxReceive</span></a> for examples</p> |
| <p>The purpose of the sender RTX object is to keep a history of RTP packets up |
| to a configurable limit (max-size-time or max-size-packets). It will listen |
| for upstream custom retransmission events (GstRTPRetransmissionRequest) that |
| comes from downstream (<a class="link" href="gst-plugins-good-plugins-rtpsession.html#GstRtpSession"><span class="type">GstRtpSession</span></a>). When receiving a request it will |
| look up the requested seqnum in its list of stored packets. If the packet |
| is available, it will create a RTX packet according to RFC 4588 and send |
| this as an auxiliary stream. RTX is SSRC-multiplexed</p> |
| <div class="refsynopsisdiv"> |
| <h2>Synopsis</h2> |
| <div class="refsect2"> |
| <a name="id-1.2.144.7.4.1"></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-rtpmanager.html#plugin-rtpmanager">rtpmanager</a> |
| </td> |
| </tr> |
| <tr> |
| <td><p><span class="term">author</span></p></td> |
| <td>Julien Isorce <julien.isorce@collabora.co.uk></td> |
| </tr> |
| <tr> |
| <td><p><span class="term">class</span></p></td> |
| <td>Codec</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="id-1.2.144.7.4.2"></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, clock-rate=(int)[ 1, 2147483647 ]</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>application/x-rtp</td> |
| </tr> |
| </tbody> |
| </table></div> |
| </div> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-good-plugins-rtprtxsend.functions_details"></a><h2>Functions</h2> |
| <p></p> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-good-plugins-rtprtxsend.other_details"></a><h2>Types and Values</h2> |
| <div class="refsect2"> |
| <a name="GstRtpRtxSend-struct"></a><h3>struct GstRtpRtxSend</h3> |
| <pre class="programlisting">struct GstRtpRtxSend;</pre> |
| </div> |
| </div> |
| <div class="refsect1"> |
| <a name="gst-plugins-good-plugins-rtprtxsend.property-details"></a><h2>Property Details</h2> |
| <div class="refsect2"> |
| <a name="GstRtpRtxSend--rtx-payload-type"></a><h3>The <code class="literal">“rtx-payload-type”</code> property</h3> |
| <pre class="programlisting"> “rtx-payload-type” <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a></pre> |
| <p>Payload type of the retransmission stream (fmtp in SDP).</p> |
| <p>Flags: Read / Write</p> |
| <p>Default value: 0</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstRtpRtxSend--max-size-time"></a><h3>The <code class="literal">“max-size-time”</code> property</h3> |
| <pre class="programlisting"> “max-size-time” <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a></pre> |
| <p>Amount of ms to queue (0 = unlimited).</p> |
| <p>Flags: Read / Write</p> |
| <p>Default value: 0</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstRtpRtxSend--max-size-packets"></a><h3>The <code class="literal">“max-size-packets”</code> property</h3> |
| <pre class="programlisting"> “max-size-packets” <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a></pre> |
| <p>Amount of packets to queue (0 = unlimited).</p> |
| <p>Flags: Read / Write</p> |
| <p>Allowed values: <= 32767</p> |
| <p>Default value: 100</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstRtpRtxSend--num-rtx-requests"></a><h3>The <code class="literal">“num-rtx-requests”</code> property</h3> |
| <pre class="programlisting"> “num-rtx-requests” <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a></pre> |
| <p>Number of retransmission events received.</p> |
| <p>Flags: Read</p> |
| <p>Default value: 0</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstRtpRtxSend--num-rtx-packets"></a><h3>The <code class="literal">“num-rtx-packets”</code> property</h3> |
| <pre class="programlisting"> “num-rtx-packets” <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a></pre> |
| <p> Number of retransmission packets sent.</p> |
| <p>Flags: Read</p> |
| <p>Default value: 0</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstRtpRtxSend--payload-type-map"></a><h3>The <code class="literal">“payload-type-map”</code> property</h3> |
| <pre class="programlisting"> “payload-type-map” <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstStructure.html"><span class="type">GstStructure</span></a> *</pre> |
| <p>Map of original payload types to their retransmission payload types.</p> |
| <p>Flags: Read / Write</p> |
| </div> |
| <hr> |
| <div class="refsect2"> |
| <a name="GstRtpRtxSend--ssrc-map"></a><h3>The <code class="literal">“ssrc-map”</code> property</h3> |
| <pre class="programlisting"> “ssrc-map” <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstStructure.html"><span class="type">GstStructure</span></a> *</pre> |
| <p>Map of SSRCs to their retransmission SSRCs for SSRC-multiplexed mode (default = random).</p> |
| <p>Flags: Write</p> |
| </div> |
| </div> |
| </div> |
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