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<a name="gst-plugins-good-plugins-rtpredenc"></a><div class="titlepage"></div>
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<td valign="top">
<h2><span class="refentrytitle"><a name="gst-plugins-good-plugins-rtpredenc.top_of_page"></a>rtpredenc</span></h2>
<p>rtpredenc — RTP Redundant Audio Data (RED) encoder</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-rtpredenc.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="../glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-rtpredenc.html#GstRtpRedEnc--allow-no-red-blocks" title="The “allow-no-red-blocks” property">allow-no-red-blocks</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="../glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-rtpredenc.html#GstRtpRedEnc--distance" title="The “distance” property">distance</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="../glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-rtpredenc.html#GstRtpRedEnc--pt" title="The “pt” property">pt</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="../glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-good-plugins-rtpredenc.html#GstRtpRedEnc--sent" title="The “sent” property">sent</a></td>
<td class="property_flags">Read</td>
</tr>
</tbody>
</table></div>
</div>
<a name="GstRtpRedEnc"></a><div class="refsect1">
<a name="gst-plugins-good-plugins-rtpredenc.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="gst-plugins-good-plugins-rtpredenc.html#GstRtpRedEnc-struct" title="struct GstRtpRedEnc">GstRtpRedEnc</a></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-rtpredenc.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen"> <a href="../gobject/gobject-The-Base-Object-Type.html#GObject-struct">GObject</a>
<span class="lineart">╰──</span> <a href="../gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
<span class="lineart">╰──</span> <a href="../gstreamer-1.0/GstObject.html#GstObject-struct">GstObject</a>
<span class="lineart">╰──</span> <a href="../gstreamer-1.0/GstElement.html#GstElement-struct">GstElement</a>
<span class="lineart">╰──</span> GstRtpRedEnc
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-rtpredenc.description"></a><h2>Description</h2>
<p>Encode Redundant Audio Data (RED) as per RFC 2198.</p>
<p>This element is mostly provided for chrome webrtc compatibility:
chrome expects protection packets generated by <a class="link" href="gst-plugins-good-plugins-rtpulpfecenc.html#GstRtpUlpFecEnc"><span class="type">GstRtpUlpFecEnc</span></a>
to be wrapped in RED packets for backward compatibility purposes,
but does not actually make use of the redundant packets that could
be encoded with this element.</p>
<p>As such, when used for that purpose, only the <a class="link" href="gst-plugins-good-plugins-rtpredenc.html#GstRtpRedEnc--pt" title="The “pt” property"><span class="type">“pt”</span></a> property
should be set to a payload type different from both the protected and
protection packets' payload types.</p>
<p>When using <a class="link" href="gst-plugins-good-plugins-rtpbin.html#GstRtpBin"><span class="type">GstRtpBin</span></a>, this element should be inserted through the
<a class="link" href="gst-plugins-good-plugins-rtpbin.html#GstRtpBin-request-fec-encoder" title="The “request-fec-encoder” signal"><span class="type">“request-fec-encoder”</span></a> signal.</p>
<p>See also: <a class="link" href="gst-plugins-good-plugins-rtpreddec.html#GstRtpRedDec"><span class="type">GstRtpRedDec</span></a>, <span class="type">GstWebRTCBin</span>, <a class="link" href="gst-plugins-good-plugins-rtpbin.html#GstRtpBin"><span class="type">GstRtpBin</span></a></p>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<div class="refsect2">
<a name="id-1.2.209.7.7.1"></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="gst-plugins-good-plugins-plugin-rtp.html#plugin-rtp">rtp</a>
</td>
</tr>
<tr>
<td><p><span class="term">author</span></p></td>
<td>Hani Mustafa <hani@pexip.com>, Mikhail Fludkov <misha@pexip.com></td>
</tr>
<tr>
<td><p><span class="term">class</span></p></td>
<td>Codec/Payloader/Network/RTP</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="id-1.2.209.7.7.2"></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</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</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-rtpredenc.functions_details"></a><h2>Functions</h2>
<p></p>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-rtpredenc.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GstRtpRedEnc-struct"></a><h3>struct GstRtpRedEnc</h3>
<pre class="programlisting">struct GstRtpRedEnc;</pre>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-rtpredenc.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GstRtpRedEnc--allow-no-red-blocks"></a><h3>The <code class="literal">“allow-no-red-blocks”</code> property</h3>
<pre class="programlisting"> “allow-no-red-blocks” <a href="../glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>true - can produce RED packets even without redundant blocks (distance==0) false - RED packets will be produced only if distance>0.</p>
<p>Flags: Read / Write</p>
<p>Default value: TRUE</p>
</div>
<hr>
<div class="refsect2">
<a name="GstRtpRedEnc--distance"></a><h3>The <code class="literal">“distance”</code> property</h3>
<pre class="programlisting"> “distance” <a href="../glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></pre>
<p>Tells which media packet to use as a redundant block (0 - no redundant blocks, 1 to use previous packet, 2 to use the packet before previous, etc.).</p>
<p>Flags: Read / Write</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstRtpRedEnc--pt"></a><h3>The <code class="literal">“pt”</code> property</h3>
<pre class="programlisting"> “pt” <a href="../glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Payload type FEC packets (-1 disable).</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [0,127]</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstRtpRedEnc--sent"></a><h3>The <code class="literal">“sent”</code> property</h3>
<pre class="programlisting"> “sent” <a href="../glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></pre>
<p>Count of sent packets.</p>
<p>Flags: Read</p>
<p>Default value: 0</p>
</div>
</div>
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