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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<title>identity</title>
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<tr><td colspan="5" class="shortcuts">
<a href="#gstreamer-plugins-identity.synopsis" class="shortcut">Top</a>
                   | 
                  <a href="#gstreamer-plugins-identity.description" class="shortcut">Description</a>
                   | 
                  <a href="#gstreamer-plugins-identity.object-hierarchy" class="shortcut">Object Hierarchy</a>
                   | 
                  <a href="#gstreamer-plugins-identity.properties" class="shortcut">Properties</a>
                   | 
                  <a href="#gstreamer-plugins-identity.signals" class="shortcut">Signals</a>
</td></tr>
</table>
<div class="refentry">
<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 — Pass data without modification</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv">
<a name="gstreamer-plugins-identity.synopsis"></a><h2>Synopsis</h2>
<a name="GstIdentity"></a><pre class="synopsis">struct              <a class="link" href="gstreamer-plugins-identity.html#GstIdentity-struct" title="struct GstIdentity">GstIdentity</a>;
</pre>
</div>
<div class="refsect1">
<a name="gstreamer-plugins-identity.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="synopsis">
  <a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GObject">GObject</a>
   +----<a href="/usr/share/gtk-doc/html/gobject/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a>
         +----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstObject.html">GstObject</a>
               +----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html">GstElement</a>
                     +----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer-libs/html/GstBaseTransform.html">GstBaseTransform</a>
                           +----GstIdentity
</pre>
</div>
<div class="refsect1">
<a name="gstreamer-plugins-identity.properties"></a><h2>Properties</h2>
<pre class="synopsis">
  "<a class="link" href="gstreamer-plugins-identity.html#GstIdentity--check-imperfect-offset" title='The "check-imperfect-offset" property'>check-imperfect-offset</a>"   <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a>              : Read / Write
  "<a class="link" href="gstreamer-plugins-identity.html#GstIdentity--check-imperfect-timestamp" title='The "check-imperfect-timestamp" property'>check-imperfect-timestamp</a>" <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a>              : Read / Write
  "<a class="link" href="gstreamer-plugins-identity.html#GstIdentity--datarate" title='The "datarate" property'>datarate</a>"                 <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a>                  : Read / Write
  "<a class="link" href="gstreamer-plugins-identity.html#GstIdentity--drop-probability" title='The "drop-probability" property'>drop-probability</a>"         <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"><span class="type">gfloat</span></a>                : Read / Write
  "<a class="link" href="gstreamer-plugins-identity.html#GstIdentity--dump" title='The "dump" property'>dump</a>"                     <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a>              : Read / Write
  "<a class="link" href="gstreamer-plugins-identity.html#GstIdentity--error-after" title='The "error-after" property'>error-after</a>"              <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a>                  : Read / Write
  "<a class="link" href="gstreamer-plugins-identity.html#GstIdentity--last-message" title='The "last-message" property'>last-message</a>"             <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a>*                : Read
  "<a class="link" href="gstreamer-plugins-identity.html#GstIdentity--signal-handoffs" title='The "signal-handoffs" property'>signal-handoffs</a>"          <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a>              : Read / Write
  "<a class="link" href="gstreamer-plugins-identity.html#GstIdentity--silent" title='The "silent" property'>silent</a>"                   <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a>              : Read / Write
  "<a class="link" href="gstreamer-plugins-identity.html#GstIdentity--single-segment" title='The "single-segment" property'>single-segment</a>"           <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a>              : Read / Write
  "<a class="link" href="gstreamer-plugins-identity.html#GstIdentity--sleep-time" title='The "sleep-time" property'>sleep-time</a>"               <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a>                 : Read / Write
  "<a class="link" href="gstreamer-plugins-identity.html#GstIdentity--sync" title='The "sync" property'>sync</a>"                     <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a>              : Read / Write
</pre>
</div>
<div class="refsect1">
<a name="gstreamer-plugins-identity.signals"></a><h2>Signals</h2>
<pre class="synopsis">
  "<a class="link" href="gstreamer-plugins-identity.html#GstIdentity-handoff" title='The "handoff" signal'>handoff</a>"                                        : <a href="/usr/share/gtk-doc/html/gobject/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">Run Last</code></a>
</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-1.2.10.7.3.1"></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-1.2.10.7.3.2"></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>
<p>
</p>
</div>
<div class="refsect1">
<a name="gstreamer-plugins-identity.details"></a><h2>Details</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="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a>              : Read / Write</pre>
<p>Send element messages if offset and offset_end do not match up.</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="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a>              : Read / Write</pre>
<p>Send element messages if timestamps and durations do not match up.</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="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a>                  : Read / Write</pre>
<p>(Re)timestamps buffers with number of bytes per second (0 = inactive).</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="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"><span class="type">gfloat</span></a>                : Read / Write</pre>
<p>The Probability a buffer is dropped.</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="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a>              : Read / Write</pre>
<p>Dump buffer contents to stdout.</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="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a>                  : Read / Write</pre>
<p>Error after N buffers.</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="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gchar"><span class="type">gchar</span></a>*                : Read</pre>
<p>last-message.</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="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a>              : Read / Write</pre>
<p>
If set to <a href="/usr/share/gtk-doc/html/glib/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="/usr/share/gtk-doc/html/glib/glib-Standard-Macros.html#FALSE:CAPS"><span class="type">FALSE</span></a>, no signal will be emited, which might improve performance.
</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="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a>              : Read / Write</pre>
<p>silent.</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="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a>              : Read / Write</pre>
<p>Timestamp buffers and eat segments so as to appear as one segment.</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="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#guint"><span class="type">guint</span></a>                 : Read / Write</pre>
<p>Microseconds to sleep between processing.</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="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gboolean"><span class="type">gboolean</span></a>              : Read / Write</pre>
<p>Synchronize to pipeline clock.</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/gstreamer-GstBuffer.html#GstBuffer"><span class="type">GstBuffer</span></a>   *buffer,
                                                        <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gpointer"><span class="type">gpointer</span></a>     user_data)      : <a href="/usr/share/gtk-doc/html/gobject/gobject-Signals.html#G-SIGNAL-RUN-LAST:CAPS"><code class="literal">Run Last</code></a></pre>
<p>
This signal gets emitted before passing the buffer downstream.
</p>
<div class="variablelist"><table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top">
<col>
</colgroup>
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>identity</code></em> :</span></p></td>
<td>the identity instance</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>buffer</code></em> :</span></p></td>
<td>the buffer that just has been received</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>pad</code></em> :</span></p></td>
<td>the pad that received it</td>
</tr>
<tr>
<td><p><span class="term"><em class="parameter"><code>user_data</code></em> :</span></p></td>
<td>user data set when the signal handler was connected.</td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
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