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<a href="#id2650418" class="shortcut">Object Hierarchy</a>
 | 
<a href="#id2650465" class="shortcut">Properties</a></nobr></td></tr>
</table>
<div class="refentry" lang="en">
<a name="gst-plugins-base-libs-gstbasertppayload"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2>
<a name="id2650181"></a><span class="refentrytitle">gstbasertppayload</span>
</h2>
<p>gstbasertppayload — Base class for RTP payloader</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<a name="GstBaseRTPPayload"></a><pre class="synopsis">
#include <gst/rtp/gstbasertppayload.h>
<a href="gst-plugins-base-libs-gstbasertppayload.html#GstBaseRTPPayload-struct">GstBaseRTPPayload</a>;
<a href="gst-plugins-base-libs-gstbasertppayload.html#GstBaseRTPPayloadClass">GstBaseRTPPayloadClass</a>;
#define <a href="gst-plugins-base-libs-gstbasertppayload.html#GST-BASE-RTP-PAYLOAD-MTU:CAPS">GST_BASE_RTP_PAYLOAD_MTU</a> (payload)
#define <a href="gst-plugins-base-libs-gstbasertppayload.html#GST-BASE-RTP-PAYLOAD-PT:CAPS">GST_BASE_RTP_PAYLOAD_PT</a> (payload)
#define <a href="gst-plugins-base-libs-gstbasertppayload.html#GST-BASE-RTP-PAYLOAD-SINKPAD:CAPS">GST_BASE_RTP_PAYLOAD_SINKPAD</a> (payload)
#define <a href="gst-plugins-base-libs-gstbasertppayload.html#GST-BASE-RTP-PAYLOAD-SRCPAD:CAPS">GST_BASE_RTP_PAYLOAD_SRCPAD</a> (payload)
gboolean <a href="gst-plugins-base-libs-gstbasertppayload.html#gst-basertppayload-is-filled">gst_basertppayload_is_filled</a> (<a href="gst-plugins-base-libs-gstbasertppayload.html#GstBaseRTPPayload">GstBaseRTPPayload</a> *payload,
guint size,
GstClockTime duration);
GstFlowReturn <a href="gst-plugins-base-libs-gstbasertppayload.html#gst-basertppayload-push">gst_basertppayload_push</a> (<a href="gst-plugins-base-libs-gstbasertppayload.html#GstBaseRTPPayload">GstBaseRTPPayload</a> *payload,
GstBuffer *buffer);
void <a href="gst-plugins-base-libs-gstbasertppayload.html#gst-basertppayload-set-options">gst_basertppayload_set_options</a> (<a href="gst-plugins-base-libs-gstbasertppayload.html#GstBaseRTPPayload">GstBaseRTPPayload</a> *payload,
gchar *media,
gboolean dynamic,
gchar *encoding_name,
guint32 clock_rate);
gboolean <a href="gst-plugins-base-libs-gstbasertppayload.html#gst-basertppayload-set-outcaps">gst_basertppayload_set_outcaps</a> (<a href="gst-plugins-base-libs-gstbasertppayload.html#GstBaseRTPPayload">GstBaseRTPPayload</a> *payload,
gchar *fieldname,
...);
</pre>
</div>
<div class="refsect1" lang="en">
<a name="id2650418"></a><h2>Object Hierarchy</h2>
<pre class="synopsis">
GObject
+----GstObject
+----GstElement
+----GstBaseRTPPayload
+----<a href="gst-plugins-base-libs-gstbasertpaudiopayload.html#GstBaseRTPAudioPayload">GstBaseRTPAudioPayload</a>
</pre>
</div>
<div class="refsect1" lang="en">
<a name="id2650465"></a><h2>Properties</h2>
<pre class="synopsis">
"<a href="gst-plugins-base-libs-gstbasertppayload.html#GstBaseRTPPayload--max-ptime">max-ptime</a>" gint64 : Read / Write
"<a href="gst-plugins-base-libs-gstbasertppayload.html#GstBaseRTPPayload--min-ptime">min-ptime</a>" gint64 : Read / Write
"<a href="gst-plugins-base-libs-gstbasertppayload.html#GstBaseRTPPayload--mtu">mtu</a>" guint : Read / Write
"<a href="gst-plugins-base-libs-gstbasertppayload.html#GstBaseRTPPayload--pt">pt</a>" guint : Read / Write
"<a href="gst-plugins-base-libs-gstbasertppayload.html#GstBaseRTPPayload--seqnum">seqnum</a>" guint : Read
"<a href="gst-plugins-base-libs-gstbasertppayload.html#GstBaseRTPPayload--seqnum-offset">seqnum-offset</a>" gint : Read / Write
"<a href="gst-plugins-base-libs-gstbasertppayload.html#GstBaseRTPPayload--ssrc">ssrc</a>" guint : Read / Write
"<a href="gst-plugins-base-libs-gstbasertppayload.html#GstBaseRTPPayload--timestamp">timestamp</a>" guint : Read
"<a href="gst-plugins-base-libs-gstbasertppayload.html#GstBaseRTPPayload--timestamp-offset">timestamp-offset</a>" guint : Read / Write
</pre>
</div>
<div class="refsect1" lang="en">
<a name="id2650637"></a><h2>Description</h2>
<p>
</p>
<div class="refsect2" lang="en">
<a name="id2650649"></a><p>
Provides a base class for RTP payloaders
</p>
</div>
<p>
</p>
</div>
<div class="refsect1" lang="en">
<a name="id2650661"></a><h2>Details</h2>
<div class="refsect2" lang="en">
<a name="id2650671"></a><h3>
<a name="GstBaseRTPPayload-struct"></a>GstBaseRTPPayload</h3>
<a class="indexterm" name="id2650685"></a><pre class="programlisting">typedef struct _GstBaseRTPPayload GstBaseRTPPayload;</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2650701"></a><h3>
<a name="GstBaseRTPPayloadClass"></a>GstBaseRTPPayloadClass</h3>
<a class="indexterm" name="id2650713"></a><pre class="programlisting">typedef struct {
GstElementClass parent_class;
/* receive caps on the sink pad, configure the payloader. */
gboolean (*set_caps) (GstBaseRTPPayload *payload, GstCaps *caps);
/* handle a buffer, perform 0 or more gst_basertppayload_push() on
* the RTP buffers */
GstFlowReturn (*handle_buffer) (GstBaseRTPPayload *payload,
GstBuffer *buffer);
gboolean (*handle_event) (GstPad * pad, GstEvent * event);
GstCaps * (*get_caps) (GstBaseRTPPayload *payload, GstPad * pad);
} GstBaseRTPPayloadClass;
</pre>
<p>
</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2650738"></a><h3>
<a name="GST-BASE-RTP-PAYLOAD-MTU:CAPS"></a>GST_BASE_RTP_PAYLOAD_MTU()</h3>
<a class="indexterm" name="id2650753"></a><pre class="programlisting">#define GST_BASE_RTP_PAYLOAD_MTU(payload) (GST_BASE_RTP_PAYLOAD (payload)->mtu)
</pre>
<p>
Get access to the configured MTU of <em class="parameter"><code>payload</code></em>.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><span class="term"><em class="parameter"><code>payload</code></em> :</span></td>
<td> a <a href="gst-plugins-base-libs-gstbasertppayload.html#GstBaseRTPPayload"><span class="type">GstBaseRTPPayload</span></a>
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2650806"></a><h3>
<a name="GST-BASE-RTP-PAYLOAD-PT:CAPS"></a>GST_BASE_RTP_PAYLOAD_PT()</h3>
<a class="indexterm" name="id2650820"></a><pre class="programlisting">#define GST_BASE_RTP_PAYLOAD_PT(payload) (GST_BASE_RTP_PAYLOAD (payload)->pt)
</pre>
<p>
Get access to the configured payload type of <em class="parameter"><code>payload</code></em>.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><span class="term"><em class="parameter"><code>payload</code></em> :</span></td>
<td> a <a href="gst-plugins-base-libs-gstbasertppayload.html#GstBaseRTPPayload"><span class="type">GstBaseRTPPayload</span></a>
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2650873"></a><h3>
<a name="GST-BASE-RTP-PAYLOAD-SINKPAD:CAPS"></a>GST_BASE_RTP_PAYLOAD_SINKPAD()</h3>
<a class="indexterm" name="id2650886"></a><pre class="programlisting">#define GST_BASE_RTP_PAYLOAD_SINKPAD(payload) (GST_BASE_RTP_PAYLOAD (payload)->sinkpad)
</pre>
<p>
Get access to the sinkpad of <em class="parameter"><code>payload</code></em>.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><span class="term"><em class="parameter"><code>payload</code></em> :</span></td>
<td> a <a href="gst-plugins-base-libs-gstbasertppayload.html#GstBaseRTPPayload"><span class="type">GstBaseRTPPayload</span></a>
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2650939"></a><h3>
<a name="GST-BASE-RTP-PAYLOAD-SRCPAD:CAPS"></a>GST_BASE_RTP_PAYLOAD_SRCPAD()</h3>
<a class="indexterm" name="id2650953"></a><pre class="programlisting">#define GST_BASE_RTP_PAYLOAD_SRCPAD(payload) (GST_BASE_RTP_PAYLOAD (payload)->srcpad)
</pre>
<p>
Get access to the srcpad of <em class="parameter"><code>payload</code></em>.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody><tr>
<td><span class="term"><em class="parameter"><code>payload</code></em> :</span></td>
<td> a <a href="gst-plugins-base-libs-gstbasertppayload.html#GstBaseRTPPayload"><span class="type">GstBaseRTPPayload</span></a>
</td>
</tr></tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2651006"></a><h3>
<a name="gst-basertppayload-is-filled"></a>gst_basertppayload_is_filled ()</h3>
<a class="indexterm" name="id2651019"></a><pre class="programlisting">gboolean gst_basertppayload_is_filled (<a href="gst-plugins-base-libs-gstbasertppayload.html#GstBaseRTPPayload">GstBaseRTPPayload</a> *payload,
guint size,
GstClockTime duration);</pre>
<p>
Check if the packet with <em class="parameter"><code>size</code></em> and <em class="parameter"><code>duration</code></em> would exceed the configure
maximum size.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><span class="term"><em class="parameter"><code>payload</code></em> :</span></td>
<td> a <a href="gst-plugins-base-libs-gstbasertppayload.html#GstBaseRTPPayload"><span class="type">GstBaseRTPPayload</span></a>
</td>
</tr>
<tr>
<td><span class="term"><em class="parameter"><code>size</code></em> :</span></td>
<td> the size of the packet
</td>
</tr>
<tr>
<td><span class="term"><em class="parameter"><code>duration</code></em> :</span></td>
<td> the duration of the packet
</td>
</tr>
<tr>
<td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td>
<td> <code class="literal">TRUE</code> if the packet of <em class="parameter"><code>size</code></em> and <em class="parameter"><code>duration</code></em> would exceed the
configured MTU or max_ptime.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2651168"></a><h3>
<a name="gst-basertppayload-push"></a>gst_basertppayload_push ()</h3>
<a class="indexterm" name="id2651181"></a><pre class="programlisting">GstFlowReturn gst_basertppayload_push (<a href="gst-plugins-base-libs-gstbasertppayload.html#GstBaseRTPPayload">GstBaseRTPPayload</a> *payload,
GstBuffer *buffer);</pre>
<p>
Push <em class="parameter"><code>buffer</code></em> to the peer element of the payloader. The SSRC, payload type,
seqnum and timestamp of the RTP buffer will be updated first.
</p>
<p>
This function takes ownership of <em class="parameter"><code>buffer</code></em>.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><span class="term"><em class="parameter"><code>payload</code></em> :</span></td>
<td> a <a href="gst-plugins-base-libs-gstbasertppayload.html#GstBaseRTPPayload"><span class="type">GstBaseRTPPayload</span></a>
</td>
</tr>
<tr>
<td><span class="term"><em class="parameter"><code>buffer</code></em> :</span></td>
<td> a <span class="type">GstBuffer</span>
</td>
</tr>
<tr>
<td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td>
<td> a <span class="type">GstFlowReturn</span>.
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2651305"></a><h3>
<a name="gst-basertppayload-set-options"></a>gst_basertppayload_set_options ()</h3>
<a class="indexterm" name="id2651319"></a><pre class="programlisting">void gst_basertppayload_set_options (<a href="gst-plugins-base-libs-gstbasertppayload.html#GstBaseRTPPayload">GstBaseRTPPayload</a> *payload,
gchar *media,
gboolean dynamic,
gchar *encoding_name,
guint32 clock_rate);</pre>
<p>
Set the rtp options of the payloader. These options will be set in the caps
of the payloader. Subclasses must call this method before calling
<a href="gst-plugins-base-libs-gstbasertppayload.html#gst-basertppayload-push"><code class="function">gst_basertppayload_push()</code></a> or <a href="gst-plugins-base-libs-gstbasertppayload.html#gst-basertppayload-set-outcaps"><code class="function">gst_basertppayload_set_outcaps()</code></a>.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><span class="term"><em class="parameter"><code>payload</code></em> :</span></td>
<td> a <a href="gst-plugins-base-libs-gstbasertppayload.html#GstBaseRTPPayload"><span class="type">GstBaseRTPPayload</span></a>
</td>
</tr>
<tr>
<td><span class="term"><em class="parameter"><code>media</code></em> :</span></td>
<td> the media type (typically "audio" or "video")
</td>
</tr>
<tr>
<td><span class="term"><em class="parameter"><code>dynamic</code></em> :</span></td>
<td> if the payload type is dynamic
</td>
</tr>
<tr>
<td><span class="term"><em class="parameter"><code>encoding_name</code></em> :</span></td>
<td> the encoding name
</td>
</tr>
<tr>
<td><span class="term"><em class="parameter"><code>clock_rate</code></em> :</span></td>
<td> the clock rate of the media
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2651490"></a><h3>
<a name="gst-basertppayload-set-outcaps"></a>gst_basertppayload_set_outcaps ()</h3>
<a class="indexterm" name="id2651504"></a><pre class="programlisting">gboolean gst_basertppayload_set_outcaps (<a href="gst-plugins-base-libs-gstbasertppayload.html#GstBaseRTPPayload">GstBaseRTPPayload</a> *payload,
gchar *fieldname,
...);</pre>
<p>
Configure the output caps with the optional parameters.
</p>
<p>
Variable arguments should be in the form field name, field type
(as a GType), value(s). The last variable argument should be NULL.</p>
<p>
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><span class="term"><em class="parameter"><code>payload</code></em> :</span></td>
<td> a <a href="gst-plugins-base-libs-gstbasertppayload.html#GstBaseRTPPayload"><span class="type">GstBaseRTPPayload</span></a>
</td>
</tr>
<tr>
<td><span class="term"><em class="parameter"><code>fieldname</code></em> :</span></td>
<td> the first field name or <code class="literal">NULL</code>
</td>
</tr>
<tr>
<td><span class="term"><em class="parameter"><code>...</code></em> :</span></td>
<td> field values
</td>
</tr>
<tr>
<td><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></td>
<td> <code class="literal">TRUE</code> if the caps could be set.
</td>
</tr>
</tbody>
</table></div>
</div>
</div>
<div class="refsect1" lang="en">
<a name="id2651637"></a><h2>Property Details</h2>
<div class="refsect2" lang="en">
<a name="id2651648"></a><h3>
<a name="GstBaseRTPPayload--max-ptime"></a>The "<code class="literal">max-ptime</code>" property</h3>
<a class="indexterm" name="id2651665"></a><pre class="programlisting"> "max-ptime" gint64 : Read / Write</pre>
<p>Maximum duration of the packet data in ns (-1 = unlimited up to MTU).</p>
<p>Allowed values: >= -1</p>
<p>Default value: -1</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2651696"></a><h3>
<a name="GstBaseRTPPayload--min-ptime"></a>The "<code class="literal">min-ptime</code>" property</h3>
<a class="indexterm" name="id2651713"></a><pre class="programlisting"> "min-ptime" gint64 : Read / Write</pre>
<p>Minimum duration of the packet data in ns (can't go above MTU).</p>
<p>Allowed values: >= 0</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2651743"></a><h3>
<a name="GstBaseRTPPayload--mtu"></a>The "<code class="literal">mtu</code>" property</h3>
<a class="indexterm" name="id2651760"></a><pre class="programlisting"> "mtu" guint : Read / Write</pre>
<p>Maximum size of one packet.</p>
<p>Allowed values: >= 28</p>
<p>Default value: 1400</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2651790"></a><h3>
<a name="GstBaseRTPPayload--pt"></a>The "<code class="literal">pt</code>" property</h3>
<a class="indexterm" name="id2651807"></a><pre class="programlisting"> "pt" guint : Read / Write</pre>
<p>The payload type of the packets.</p>
<p>Allowed values: <= 128</p>
<p>Default value: 96</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2651838"></a><h3>
<a name="GstBaseRTPPayload--seqnum"></a>The "<code class="literal">seqnum</code>" property</h3>
<a class="indexterm" name="id2651854"></a><pre class="programlisting"> "seqnum" guint : Read</pre>
<p>The RTP sequence number of the last processed packet.</p>
<p>Allowed values: <= 65535</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2651886"></a><h3>
<a name="GstBaseRTPPayload--seqnum-offset"></a>The "<code class="literal">seqnum-offset</code>" property</h3>
<a class="indexterm" name="id2651903"></a><pre class="programlisting"> "seqnum-offset" gint : Read / Write</pre>
<p>Offset to add to all outgoing seqnum (-1 = random).</p>
<p>Allowed values: [-1,65535]</p>
<p>Default value: -1</p>
</div>
<hr>
<div class="refsect2" lang="en">
<a name="id2651934"></a><h3>
<a name="GstBaseRTPPayload--ssrc"></a>The "<code class="literal">ssrc</code>" property</h3>
<a class="indexterm" name="id2651950"></a><pre class="programlisting"> "ssrc" guint : Read / Write</pre>
<p>The SSRC of the packets (default == random).</p>
<p>Default value: 4294967295</p>
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<div class="refsect2" lang="en">
<a name="id2651978"></a><h3>
<a name="GstBaseRTPPayload--timestamp"></a>The "<code class="literal">timestamp</code>" property</h3>
<a class="indexterm" name="id2651995"></a><pre class="programlisting"> "timestamp" guint : Read</pre>
<p>The RTP timestamp of the last processed packet.</p>
<p>Default value: 0</p>
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<hr>
<div class="refsect2" lang="en">
<a name="id2652022"></a><h3>
<a name="GstBaseRTPPayload--timestamp-offset"></a>The "<code class="literal">timestamp-offset</code>" property</h3>
<a class="indexterm" name="id2652038"></a><pre class="programlisting"> "timestamp-offset" guint : Read / Write</pre>
<p>Offset to add to all outgoing timestamps (default = random).</p>
<p>Default value: 4294967295</p>
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