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<a name="gstreamer-plugins-identity"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="gstreamer-plugins-identity.top_of_page"></a>identity</span></h2>
<p>identity</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="gstreamer-plugins-identity.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#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="gstreamer-plugins-identity.html#GstIdentity--check-imperfect-offset" title="The “check-imperfect-offset” property">check-imperfect-offset</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#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="gstreamer-plugins-identity.html#GstIdentity--check-imperfect-timestamp" title="The “check-imperfect-timestamp” property">check-imperfect-timestamp</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#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gstreamer-plugins-identity.html#GstIdentity--datarate" title="The “datarate” property">datarate</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#gfloat"><span class="type">gfloat</span></a></td>
<td class="property_name"><a class="link" href="gstreamer-plugins-identity.html#GstIdentity--drop-probability" title="The “drop-probability” property">drop-probability</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#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="gstreamer-plugins-identity.html#GstIdentity--dump" title="The “dump” property">dump</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#gint"><span class="type">gint</span></a></td>
<td class="property_name"><a class="link" href="gstreamer-plugins-identity.html#GstIdentity--error-after" title="The “error-after” property">error-after</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#gchar"><span class="type">gchar</span></a> *</td>
<td class="property_name"><a class="link" href="gstreamer-plugins-identity.html#GstIdentity--last-message" title="The “last-message” property">last-message</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#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="gstreamer-plugins-identity.html#GstIdentity--signal-handoffs" title="The “signal-handoffs” property">signal-handoffs</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#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="gstreamer-plugins-identity.html#GstIdentity--silent" title="The “silent” property">silent</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#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="gstreamer-plugins-identity.html#GstIdentity--single-segment" title="The “single-segment” property">single-segment</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="gstreamer-plugins-identity.html#GstIdentity--sleep-time" title="The “sleep-time” property">sleep-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#gboolean"><span class="type">gboolean</span></a></td>
<td class="property_name"><a class="link" href="gstreamer-plugins-identity.html#GstIdentity--sync" title="The “sync” property">sync</a></td>
<td class="property_flags">Read / Write</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gstreamer-plugins-identity.signals"></a><h2>Signals</h2>
<div class="informaltable"><table 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"><span class="returnvalue">void</span></td>
<td class="signal_name"><a class="link" href="gstreamer-plugins-identity.html#GstIdentity-handoff" title="The “handoff” signal">handoff</a></td>
<td class="signal_flags"><a href="https://developer.gnome.org/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS">Run Last</a></td>
</tr></tbody>
</table></div>
</div>
<a name="GstIdentity"></a><div class="refsect1">
<a name="gstreamer-plugins-identity.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="gstreamer-plugins-identity.html#GstIdentity-struct" title="struct GstIdentity">GstIdentity</a></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="gstreamer-plugins-identity.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> <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer-libs/html/GstBaseTransform.html">GstBaseTransform</a>
<span class="lineart">╰──</span> GstIdentity
</pre>
</div>
<div class="refsect1">
<a name="gstreamer-plugins-identity.description"></a><h2>Description</h2>
<p>Dummy element that passes incoming data through unmodified. It has some
useful diagnostic functions, such as offset and timestamp checking.</p>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<div class="refsect2">
<a name="id-1.2.12.8.3.1"></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="gstreamer-plugins-plugin-coreelements.html#plugin-coreelements">coreelements</a>
</td>
</tr>
<tr>
<td><p><span class="term">author</span></p></td>
<td>Erik Walthinsen &lt;omega@cse.ogi.edu&gt;</td>
</tr>
<tr>
<td><p><span class="term">class</span></p></td>
<td>Generic</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="id-1.2.12.8.3.2"></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>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="gstreamer-plugins-identity.functions_details"></a><h2>Functions</h2>
<p></p>
</div>
<div class="refsect1">
<a name="gstreamer-plugins-identity.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GstIdentity-struct"></a><h3>struct GstIdentity</h3>
<pre class="programlisting">struct GstIdentity;</pre>
<p>Opaque <a class="link" href="gstreamer-plugins-identity.html#GstIdentity"><span class="type">GstIdentity</span></a> data structure</p>
</div>
</div>
<div class="refsect1">
<a name="gstreamer-plugins-identity.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GstIdentity--check-imperfect-offset"></a><h3>The <code class="literal">“check-imperfect-offset”</code> property</h3>
<pre class="programlisting"> “check-imperfect-offset” <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>Send element messages if offset and offset_end do not match up.</p>
<p>Flags: Read / Write</p>
<p>Default value: FALSE</p>
</div>
<hr>
<div class="refsect2">
<a name="GstIdentity--check-imperfect-timestamp"></a><h3>The <code class="literal">“check-imperfect-timestamp”</code> property</h3>
<pre class="programlisting"> “check-imperfect-timestamp” <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>Send element messages if timestamps and durations do not match up.</p>
<p>Flags: Read / Write</p>
<p>Default value: FALSE</p>
</div>
<hr>
<div class="refsect2">
<a name="GstIdentity--datarate"></a><h3>The <code class="literal">“datarate”</code> property</h3>
<pre class="programlisting"> “datarate” <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>(Re)timestamps buffers with number of bytes per second (0 = inactive).</p>
<p>Flags: Read / Write</p>
<p>Allowed values: &gt;= 0</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstIdentity--drop-probability"></a><h3>The <code class="literal">“drop-probability”</code> property</h3>
<pre class="programlisting"> “drop-probability” <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gfloat"><span class="type">gfloat</span></a></pre>
<p>The Probability a buffer is dropped.</p>
<p>Flags: Read / Write</p>
<p>Allowed values: [0,1]</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstIdentity--dump"></a><h3>The <code class="literal">“dump”</code> property</h3>
<pre class="programlisting"> “dump” <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>Dump buffer contents to stdout.</p>
<p>Flags: Read / Write</p>
<p>Default value: FALSE</p>
</div>
<hr>
<div class="refsect2">
<a name="GstIdentity--error-after"></a><h3>The <code class="literal">“error-after”</code> property</h3>
<pre class="programlisting"> “error-after” <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gint"><span class="type">gint</span></a></pre>
<p>Error after N buffers.</p>
<p>Flags: Read / Write</p>
<p>Default value: -1</p>
</div>
<hr>
<div class="refsect2">
<a name="GstIdentity--last-message"></a><h3>The <code class="literal">“last-message”</code> property</h3>
<pre class="programlisting"> “last-message” <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a> *</pre>
<p>last-message.</p>
<p>Flags: Read</p>
<p>Default value: NULL</p>
</div>
<hr>
<div class="refsect2">
<a name="GstIdentity--signal-handoffs"></a><h3>The <code class="literal">“signal-handoffs”</code> property</h3>
<pre class="programlisting"> “signal-handoffs” <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>If set to <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#TRUE:CAPS"><span class="type">TRUE</span></a>, the identity will emit a handoff signal when handling a buffer.
When set to <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#FALSE:CAPS"><span class="type">FALSE</span></a>, no signal will be emitted, which might improve performance.</p>
<p>Flags: Read / Write</p>
<p>Default value: TRUE</p>
</div>
<hr>
<div class="refsect2">
<a name="GstIdentity--silent"></a><h3>The <code class="literal">“silent”</code> property</h3>
<pre class="programlisting"> “silent” <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>silent.</p>
<p>Flags: Read / Write</p>
<p>Default value: TRUE</p>
</div>
<hr>
<div class="refsect2">
<a name="GstIdentity--single-segment"></a><h3>The <code class="literal">“single-segment”</code> property</h3>
<pre class="programlisting"> “single-segment” <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>Timestamp buffers and eat segments so as to appear as one segment.</p>
<p>Flags: Read / Write</p>
<p>Default value: FALSE</p>
</div>
<hr>
<div class="refsect2">
<a name="GstIdentity--sleep-time"></a><h3>The <code class="literal">“sleep-time”</code> property</h3>
<pre class="programlisting"> “sleep-time” <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#guint"><span class="type">guint</span></a></pre>
<p>Microseconds to sleep between processing.</p>
<p>Flags: Read / Write</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstIdentity--sync"></a><h3>The <code class="literal">“sync”</code> property</h3>
<pre class="programlisting"> “sync” <a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a></pre>
<p>Synchronize to pipeline clock.</p>
<p>Flags: Read / Write</p>
<p>Default value: FALSE</p>
</div>
</div>
<div class="refsect1">
<a name="gstreamer-plugins-identity.signal-details"></a><h2>Signal Details</h2>
<div class="refsect2">
<a name="GstIdentity-handoff"></a><h3>The <code class="literal">“handoff”</code> signal</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
user_function (<a class="link" href="gstreamer-plugins-identity.html#GstIdentity"><span class="type">GstIdentity</span></a> *identity,
<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstBuffer.html"><span class="type">GstBuffer</span></a> *buffer,
<a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a> user_data)</pre>
<p>This signal gets emitted before passing the buffer downstream.</p>
<div class="refsect3">
<a name="id-1.2.12.12.2.5"></a><h4>Parameters</h4>
<div class="informaltable"><table 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>identity</p></td>
<td class="parameter_description"><p>the identity instance</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>buffer</p></td>
<td class="parameter_description"><p>the buffer that just has been received</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>pad</p></td>
<td class="parameter_description"><p>the pad that received it</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>
<p>Flags: <a href="https://developer.gnome.org/gobject/unstable/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS">Run Last</a></p>
</div>
</div>
</div>
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