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20 <th width="100%" align="center">GStreamer Base Plugins 0.10 Plugins Reference Manual</th>
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24 <a href="#gst-plugins-base-plugins-adder.synopsis" class="shortcut">Top</a>
26 <a href="#gst-plugins-base-plugins-adder.description" class="shortcut">Description</a>
28 <a href="#gst-plugins-base-plugins-adder.object-hierarchy" class="shortcut">Object Hierarchy</a>
30 <a href="#gst-plugins-base-plugins-adder.properties" class="shortcut">Properties</a>
33 <div class="refentry">
34 <a name="gst-plugins-base-plugins-adder"></a><div class="titlepage"></div>
35 <div class="refnamediv"><table width="100%"><tr>
37 <h2><span class="refentrytitle"><a name="gst-plugins-base-plugins-adder.top_of_page"></a>adder</span></h2>
38 <p>adder — Add N audio channels together</p>
40 <td valign="top" align="right"></td>
42 <div class="refsynopsisdiv">
43 <a name="gst-plugins-base-plugins-adder.synopsis"></a><h2>Synopsis</h2>
44 <a name="GstAdder"></a><pre class="synopsis">struct <a class="link" href="gst-plugins-base-plugins-adder.html#GstAdder-struct" title="struct GstAdder">GstAdder</a>;
47 <div class="refsect1">
48 <a name="gst-plugins-base-plugins-adder.object-hierarchy"></a><h2>Object Hierarchy</h2>
49 <pre class="synopsis">
50 <a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GObject">GObject</a>
51 +----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstObject.html">GstObject</a>
52 +----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html">GstElement</a>
56 <div class="refsect1">
57 <a name="gst-plugins-base-plugins-adder.properties"></a><h2>Properties</h2>
58 <pre class="synopsis">
59 "<a class="link" href="gst-plugins-base-plugins-adder.html#GstAdder--caps" title='The "caps" property'>caps</a>" <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstCaps.html#GstCaps"><span class="type">GstCaps</span></a>* : Read / Write
62 <div class="refsect1">
63 <a name="gst-plugins-base-plugins-adder.description"></a><h2>Description</h2>
65 The adder allows to mix several streams into one by adding the data.
66 Mixed data is clamped to the min/max values of the data format.
69 The adder currently mixes all data received on the sinkpads as soon as
70 possible without trying to synchronize the streams.
74 <div class="refsect2">
75 <a name="idm11744"></a><h3>Example launch line</h3>
76 <div class="informalexample">
77 <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
80 <td class="listing_lines" align="right"><pre>1</pre></td>
81 <td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch audiotestsrc freq<span class="gtkdoc opt">=</span><span class="number">100</span> <span class="gtkdoc opt">!</span> adder name<span class="gtkdoc opt">=</span>mix <span class="gtkdoc opt">!</span> audioconvert <span class="gtkdoc opt">!</span> alsasink audiotestsrc freq<span class="gtkdoc opt">=</span><span class="number">500</span> <span class="gtkdoc opt">!</span> mix<span class="gtkdoc opt">.</span></pre></td>
86 This pipeline produces two sine waves mixed together.
91 Last reviewed on 2006-05-09 (0.10.7)
93 <div class="refsynopsisdiv">
95 <div class="refsect2">
96 <a name="idm14528"></a><h3>Element Information</h3>
97 <div class="variablelist"><table border="0">
98 <col align="left" valign="top">
101 <td><p><span class="term">plugin</span></p></td>
103 <a class="link" href="gst-plugins-base-plugins-plugin-adder.html#plugin-adder">adder</a>
107 <td><p><span class="term">author</span></p></td>
108 <td>Thomas Vander Stichele <thomas at apestaart dot org></td>
111 <td><p><span class="term">class</span></p></td>
112 <td>Generic/Audio</td>
118 <div class="refsect2">
119 <a name="idp7769280"></a><h3>Element Pads</h3>
120 <div class="variablelist"><table border="0">
121 <col align="left" valign="top">
124 <td><p><span class="term">name</span></p></td>
128 <td><p><span class="term">direction</span></p></td>
132 <td><p><span class="term">presence</span></p></td>
136 <td><p><span class="term">details</span></p></td>
137 <td>audio/x-raw-int, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int)32, depth=(int)32, signed=(boolean){ true, false }</td>
140 <td><p><span class="term"></span></p></td>
141 <td> audio/x-raw-int, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int)16, depth=(int)16, signed=(boolean){ true, false }</td>
144 <td><p><span class="term"></span></p></td>
145 <td> audio/x-raw-int, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int)8, depth=(int)8, signed=(boolean){ true, false }</td>
148 <td><p><span class="term"></span></p></td>
149 <td> audio/x-raw-float, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int){ 32, 64 }</td>
153 <div class="variablelist"><table border="0">
154 <col align="left" valign="top">
157 <td><p><span class="term">name</span></p></td>
161 <td><p><span class="term">direction</span></p></td>
165 <td><p><span class="term">presence</span></p></td>
169 <td><p><span class="term">details</span></p></td>
170 <td>audio/x-raw-int, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int)32, depth=(int)32, signed=(boolean){ true, false }</td>
173 <td><p><span class="term"></span></p></td>
174 <td> audio/x-raw-int, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int)16, depth=(int)16, signed=(boolean){ true, false }</td>
177 <td><p><span class="term"></span></p></td>
178 <td> audio/x-raw-int, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int)8, depth=(int)8, signed=(boolean){ true, false }</td>
181 <td><p><span class="term"></span></p></td>
182 <td> audio/x-raw-float, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ], endianness=(int)1234, width=(int){ 32, 64 }</td>
191 <div class="refsect1">
192 <a name="gst-plugins-base-plugins-adder.details"></a><h2>Details</h2>
193 <div class="refsect2">
194 <a name="GstAdder-struct"></a><h3>struct GstAdder</h3>
195 <pre class="programlisting">struct GstAdder;</pre>
197 The adder object structure.
201 <div class="refsect1">
202 <a name="gst-plugins-base-plugins-adder.property-details"></a><h2>Property Details</h2>
203 <div class="refsect2">
204 <a name="GstAdder--caps"></a><h3>The <code class="literal">"caps"</code> property</h3>
205 <pre class="programlisting"> "caps" <a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/gstreamer-GstCaps.html#GstCaps"><span class="type">GstCaps</span></a>* : Read / Write</pre>
206 <p>Set target format for mixing (NULL means ANY). Setting this property takes a reference to the supplied GstCaps object.</p>
207 <p class="since">Since 0.10.24</p>
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