plugins/html/gst-plugins-base-plugins-encodebin.html

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<div class="refentry">
<a name="gst-plugins-base-plugins-encodebin"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="gst-plugins-base-plugins-encodebin.top_of_page"></a>encodebin</span></h2>
<p>encodebin</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-encodebin.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="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint64"><span class="type">guint64</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-base-plugins-encodebin.html#GstEncodeBin--audio-jitter-tolerance" title="The “audio-jitter-tolerance” property">audio-jitter-tolerance</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-base-plugins-encodebin.html#GstEncodeBin--avoid-reencoding" title="The “avoid-reencoding” property">avoid-reencoding</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><span class="type">GstEncodeBinFlags</span></td>
<td class="property_name"><a class="link" href="gst-plugins-base-plugins-encodebin.html#GstEncodeBin--flags" title="The “flags” property">flags</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type">
<a href="../html/GstEncodingProfile.html#GstEncodingProfile-struct"><span class="type">GstEncodingProfile</span></a> *</td>
<td class="property_name"><a class="link" href="gst-plugins-base-plugins-encodebin.html#GstEncodeBin--profile" title="The “profile” property">profile</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-base-plugins-encodebin.html#GstEncodeBin--queue-buffers-max" title="The “queue-buffers-max” property">queue-buffers-max</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-base-plugins-encodebin.html#GstEncodeBin--queue-bytes-max" title="The “queue-bytes-max” property">queue-bytes-max</a></td>
<td class="property_flags">Read / Write</td>
</tr>
<tr>
<td class="property_type"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint64"><span class="type">guint64</span></a></td>
<td class="property_name"><a class="link" href="gst-plugins-base-plugins-encodebin.html#GstEncodeBin--queue-time-max" title="The “queue-time-max” property">queue-time-max</a></td>
<td class="property_flags">Read / Write</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-encodebin.signals"></a><h2>Signals</h2>
<div class="informaltable"><table class="informaltable" 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">
<a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstPad.html#GstPad-struct"><span class="returnvalue">GstPad</span></a>*</td>
<td class="signal_name"><a class="link" href="gst-plugins-base-plugins-encodebin.html#GstEncodeBin-request-pad" title="The “request-pad” signal">request-pad</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">
<a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstPad.html#GstPad-struct"><span class="returnvalue">GstPad</span></a>*</td>
<td class="signal_name"><a class="link" href="gst-plugins-base-plugins-encodebin.html#GstEncodeBin-request-profile-pad" title="The “request-profile-pad” signal">request-profile-pad</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>
</tbody>
</table></div>
</div>
<a name="GstEncodeBin"></a><div class="refsect1">
<a name="gst-plugins-base-plugins-encodebin.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"> </td>
<td class="function_name"><a class="link" href="gst-plugins-base-plugins-encodebin.html#GstEncodeBin-struct" title="GstEncodeBin">GstEncodeBin</a></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-encodebin.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-struct">GObject</a>
    <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
        <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstObject.html#GstObject-struct">GstObject</a>
            <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html#GstElement-struct">GstElement</a>
                <span class="lineart">╰──</span> <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstBin.html#GstBin-struct">GstBin</a>
                    <span class="lineart">╰──</span> GstEncodeBin
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-encodebin.implemented-interfaces"></a><h2>Implemented Interfaces</h2>
<p>
GstEncodeBin implements
 <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstChildProxy.html#GstChildProxy-struct">GstChildProxy</a>.</p>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-encodebin.description"></a><h2>Description</h2>
<p>EncodeBin provides a bin for encoding/muxing various streams according to
a specified <a href="../html/GstEncodingProfile.html#GstEncodingProfile-struct"><span class="type">GstEncodingProfile</span></a>.</p>
<p>Based on the profile that was set (via the <a class="link" href="gst-plugins-base-plugins-encodebin.html#GstEncodeBin--profile" title="The “profile” property"><span class="type">“profile”</span></a> property),
EncodeBin will internally select and configure the required elements
(encoders, muxers, but also audio and video converters) so that you can
provide it raw or pre-encoded streams of data in input and have your
encoded/muxed/converted stream in output.</p>
<div class="refsect3">
<a name="id-1.2.19.9.4"></a><h4>Features</h4>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem"><p>Automatic encoder and muxer selection based on elements available on the
system.</p></li>
<li class="listitem"><p>Conversion of raw audio/video streams (scaling, framerate conversion,
colorspace conversion, samplerate conversion) to conform to the profile
output format.</p></li>
<li class="listitem"><p>Variable number of streams. If the presence property for a stream encoding
profile is 0, you can request any number of sink pads for it via the
standard request pad gstreamer API or the <a class="link" href="gst-plugins-base-plugins-encodebin.html#GstEncodeBin-request-pad" title="The “request-pad” signal"><span class="type">“request-pad”</span></a> action
signal.</p></li>
<li class="listitem"><p>Avoid reencoding (passthrough). If the input stream is already encoded and is
compatible with what the <a href="../html/GstEncodingProfile.html#GstEncodingProfile-struct"><span class="type">GstEncodingProfile</span></a> expects, then the stream won't
be re-encoded but just passed through downstream to the muxer or the output.</p></li>
<li class="listitem"><p>Mix pre-encoded and raw streams as input. In addition to the passthrough
feature above, you can feed both raw audio/video *AND* already-encoded data
to a pad. <a class="link" href="gst-plugins-base-plugins-encodebin.html#GstEncodeBin"><span class="type">GstEncodeBin</span></a> will take care of passing through the compatible
segments and re-encoding the segments of media that need encoding.</p></li>
<li class="listitem"><p>Standard behaviour is to use a <a href="../html/GstEncodingProfile.html#GstEncodingContainerProfile-struct"><span class="type">GstEncodingContainerProfile</span></a> to have both
encoding and muxing performed. But you can also provide a single stream
profile (like <a href="../html/GstEncodingProfile.html#GstEncodingAudioProfile-struct"><span class="type">GstEncodingAudioProfile</span></a>) to only have the encoding done and
handle the encoded output yourself.</p></li>
<li class="listitem"><p>Audio imperfection corrections. Incoming audio streams can have non perfect
timestamps (jitter), like the streams coming from ASF files. <a class="link" href="gst-plugins-base-plugins-encodebin.html#GstEncodeBin"><span class="type">GstEncodeBin</span></a>
will automatically fix those imperfections for you. See
<a class="link" href="gst-plugins-base-plugins-encodebin.html#GstEncodeBin--audio-jitter-tolerance" title="The “audio-jitter-tolerance” property"><span class="type">“audio-jitter-tolerance”</span></a> for more details.</p></li>
<li class="listitem"><p>Variable or Constant video framerate. If your <a href="../html/GstEncodingProfile.html#GstEncodingVideoProfile-struct"><span class="type">GstEncodingVideoProfile</span></a> has
the variableframerate property deactivated (default), then the incoming
raw video stream will be retimestampped in order to produce a constant
framerate.</p></li>
<li class="listitem"><p>Cross-boundary re-encoding. When feeding compatible pre-encoded streams that
fall on segment boundaries, and for supported formats (right now only H263),
the GOP will be decoded/reencoded when needed to produce an encoded output
that fits exactly within the request GstSegment.</p></li>
<li class="listitem"><p>Missing plugin support. If a <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html#GstElement-struct"><span class="type">GstElement</span></a> is missing to encode/mux to the
request profile formats, a missing-plugin <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstMessage.html#GstMessage-struct"><span class="type">GstMessage</span></a> will be posted on the
<a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstBus.html#GstBus-struct"><span class="type">GstBus</span></a>, allowing systems that support the missing-plugin system to offer the
user a way to install the missing element.</p></li>
</ul></div>
</div>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<div class="refsect2">
<a name="id-1.2.19.9.5.1"></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-base-plugins-plugin-encoding.html#plugin-encoding">encoding</a>
          </td>
</tr>
<tr>
<td><p><span class="term">author</span></p></td>
<td>Edward Hervey &lt;edward.hervey@collabora.co.uk&gt;</td>
</tr>
<tr>
<td><p><span class="term">class</span></p></td>
<td>Generic/Bin/Encoder</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="id-1.2.19.9.5.2"></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>audio_%u</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>request</td>
</tr>
<tr>
<td><p><span class="term">details</span></p></td>
<td>ANY</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>private_%u</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>request</td>
</tr>
<tr>
<td><p><span class="term">details</span></p></td>
<td>ANY</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>video_%u</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>request</td>
</tr>
<tr>
<td><p><span class="term">details</span></p></td>
<td>ANY</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>ANY</td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-encodebin.functions_details"></a><h2>Functions</h2>
<p></p>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-encodebin.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GstEncodeBin-struct"></a><h3>GstEncodeBin</h3>
<pre class="programlisting">typedef struct _GstEncodeBin GstEncodeBin;</pre>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-encodebin.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GstEncodeBin--audio-jitter-tolerance"></a><h3>The <code class="literal">“audio-jitter-tolerance”</code> property</h3>
<pre class="programlisting">  “audio-jitter-tolerance”   <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint64"><span class="type">guint64</span></a></pre>
<p>Amount of timestamp jitter/imperfection to allow on audio streams before inserting/dropping samples (ns).</p>
<p>Flags: Read / Write</p>
<p>Default value: 20000000</p>
</div>
<hr>
<div class="refsect2">
<a name="GstEncodeBin--avoid-reencoding"></a><h3>The <code class="literal">“avoid-reencoding”</code> property</h3>
<pre class="programlisting">  “avoid-reencoding”         <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>Whether to re-encode portions of compatible video streams that lay on segment boundaries.</p>
<p>Flags: Read / Write</p>
<p>Default value: FALSE</p>
</div>
<hr>
<div class="refsect2">
<a name="GstEncodeBin--flags"></a><h3>The <code class="literal">“flags”</code> property</h3>
<pre class="programlisting">  “flags”                    <span class="type">GstEncodeBinFlags</span></pre>
<p>Control the behaviour of encodebin.</p>
<p>Flags: Read / Write</p>
</div>
<hr>
<div class="refsect2">
<a name="GstEncodeBin--profile"></a><h3>The <code class="literal">“profile”</code> property</h3>
<pre class="programlisting">  “profile”                  <a href="../html/GstEncodingProfile.html#GstEncodingProfile-struct"><span class="type">GstEncodingProfile</span></a> *</pre>
<p>The <a href="../html/GstEncodingProfile.html#GstEncodingProfile-struct"><span class="type">GstEncodingProfile</span></a> to use. This property must be set before going
to <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html#GST-STATE-PAUSED:CAPS"><code class="literal">GST_STATE_PAUSED</code></a> or higher.</p>
<p>Flags: Read / Write</p>
</div>
<hr>
<div class="refsect2">
<a name="GstEncodeBin--queue-buffers-max"></a><h3>The <code class="literal">“queue-buffers-max”</code> property</h3>
<pre class="programlisting">  “queue-buffers-max”        <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></pre>
<p>Max. number of buffers in the queue (0=disable).</p>
<p>Flags: Read / Write</p>
<p>Default value: 200</p>
</div>
<hr>
<div class="refsect2">
<a name="GstEncodeBin--queue-bytes-max"></a><h3>The <code class="literal">“queue-bytes-max”</code> property</h3>
<pre class="programlisting">  “queue-bytes-max”          <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a></pre>
<p>Max. amount of data in the queue (bytes, 0=disable).</p>
<p>Flags: Read / Write</p>
<p>Default value: 10485760</p>
</div>
<hr>
<div class="refsect2">
<a name="GstEncodeBin--queue-time-max"></a><h3>The <code class="literal">“queue-time-max”</code> property</h3>
<pre class="programlisting">  “queue-time-max”           <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint64"><span class="type">guint64</span></a></pre>
<p>Max. amount of data in the queue (in ns, 0=disable).</p>
<p>Flags: Read / Write</p>
<p>Default value: 1000000000</p>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-base-plugins-encodebin.signal-details"></a><h2>Signal Details</h2>
<div class="refsect2">
<a name="GstEncodeBin-request-pad"></a><h3>The <code class="literal">“request-pad”</code> signal</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstPad.html#GstPad-struct"><span class="returnvalue">GstPad</span></a>*
user_function (<a class="link" href="gst-plugins-base-plugins-encodebin.html#GstEncodeBin"><span class="type">GstEncodeBin</span></a> *encodebin,
               <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstCaps.html#GstCaps-struct"><span class="type">GstCaps</span></a>      *caps,
               <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a>      user_data)</pre>
<p>Use this method to request an unused sink request <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstPad.html#GstPad-struct"><span class="type">GstPad</span></a> that can take the
provided <em class="parameter"><code>caps</code></em>
 as input. You must release the pad with
<a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html#gst-element-release-request-pad"><code class="function">gst_element_release_request_pad()</code></a> when you are done with it.</p>
<div class="refsect3">
<a name="GstEncodeBin-request-pad.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" 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>encodebin</p></td>
<td class="parameter_description"><p>a <a class="link" href="gst-plugins-base-plugins-encodebin.html#GstEncodeBin"><span class="type">GstEncodeBin</span></a> instance</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>caps</p></td>
<td class="parameter_description"><p>a <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstCaps.html#GstCaps-struct"><span class="type">GstCaps</span></a></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>
<div class="refsect3">
<a name="GstEncodeBin-request-pad.returns"></a><h4>Returns</h4>
<p> A compatible <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstPad.html#GstPad-struct"><span class="type">GstPad</span></a>, or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if no compatible <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstPad.html#GstPad-struct"><span class="type">GstPad</span></a> could be
created or is available.</p>
</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="GstEncodeBin-request-profile-pad"></a><h3>The <code class="literal">“request-profile-pad”</code> signal</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstPad.html#GstPad-struct"><span class="returnvalue">GstPad</span></a>*
user_function (<a class="link" href="gst-plugins-base-plugins-encodebin.html#GstEncodeBin"><span class="type">GstEncodeBin</span></a> *encodebin,
               <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a>        *profilename,
               <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a>      user_data)</pre>
<p>Use this method to request an unused sink request <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstPad.html#GstPad-struct"><span class="type">GstPad</span></a> from the profile
<em class="parameter"><code>profilename</code></em>
. You must release the pad with
<a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstElement.html#gst-element-release-request-pad"><code class="function">gst_element_release_request_pad()</code></a> when you are done with it.</p>
<div class="refsect3">
<a name="GstEncodeBin-request-profile-pad.parameters"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" 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>encodebin</p></td>
<td class="parameter_description"><p>a <a class="link" href="gst-plugins-base-plugins-encodebin.html#GstEncodeBin"><span class="type">GstEncodeBin</span></a> instance</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>profilename</p></td>
<td class="parameter_description"><p>the name of a <a href="../html/GstEncodingProfile.html#GstEncodingProfile-struct"><span class="type">GstEncodingProfile</span></a></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>
<div class="refsect3">
<a name="GstEncodeBin-request-profile-pad.returns"></a><h4>Returns</h4>
<p> A compatible <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstPad.html#GstPad-struct"><span class="type">GstPad</span></a>, or <a href="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a> if no compatible <a href="/usr/share/gtk-doc/html/gstreamer-1.0/GstPad.html#GstPad-struct"><span class="type">GstPad</span></a> could be
created or is available.</p>
</div>
<p>Flags: <a href="/usr/share/gtk-doc/html/gobject/gobject-Signals.html#G-SIGNAL-ACTION:CAPS">Action</a></p>
</div>
</div>
</div>
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