mobile/docs/plugins/html/gst-plugins-base-plugins-adder.html

   1 <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
   2 <html>
   3 <head>
   4 <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
   5 <title>adder</title>
   6 <meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
   7 <link rel="home" href="index.html" title="GStreamer Base Plugins 0.10 Plugins Reference Manual">
   8 <link rel="up" href="ch01.html" title="gst-plugins-base Elements">
   9 <link rel="prev" href="ch01.html" title="gst-plugins-base Elements">
  10 <link rel="next" href="gst-plugins-base-plugins-appsrc.html" title="appsrc">
  11 <meta name="generator" content="GTK-Doc V1.18 (XML mode)">
  12 <link rel="stylesheet" href="style.css" type="text/css">
  13 </head>
  14 <body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
  15 <table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2">
  16 <tr valign="middle">
  17 <td><a accesskey="p" href="ch01.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td>
  18 <td><a accesskey="u" href="ch01.html"><img src="up.png" width="24" height="24" border="0" alt="Up"></a></td>
  19 <td><a accesskey="h" href="index.html"><img src="home.png" width="24" height="24" border="0" alt="Home"></a></td>
  20 <th width="100%" align="center">GStreamer Base Plugins 0.10 Plugins Reference Manual</th>
  21 <td><a accesskey="n" href="gst-plugins-base-plugins-appsrc.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td>
  22 </tr>
  23 <tr><td colspan="5" class="shortcuts">
  24 <a href="#gst-plugins-base-plugins-adder.synopsis" class="shortcut">Top</a>
  25                    |
  26                   <a href="#gst-plugins-base-plugins-adder.description" class="shortcut">Description</a>
  27                    |
  28                   <a href="#gst-plugins-base-plugins-adder.object-hierarchy" class="shortcut">Object Hierarchy</a>
  29                    |
  30                   <a href="#gst-plugins-base-plugins-adder.properties" class="shortcut">Properties</a>
  31 </td></tr>
  32 </table>
  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>
  36 <td valign="top">
  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>
  39 </td>
  40 <td valign="top" align="right"></td>
  41 </tr></table></div>
  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>;
  45 </pre>
  46 </div>
  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>
  53                +----GstAdder
  54 </pre>
  55 </div>
  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
  60 </pre>
  61 </div>
  62 <div class="refsect1">
  63 <a name="gst-plugins-base-plugins-adder.description"></a><h2>Description</h2>
  64 <p>
  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.
  67 </p>
  68 <p>
  69 The adder currently mixes all data received on the sinkpads as soon as
  70 possible without trying to synchronize the streams.
  71 </p>
  72 <p>
  73 </p>
  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">
  78     <tbody>
  79       <tr>
  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>
  82       </tr>
  83     </tbody>
  84   </table>
  85 </div>
  86  This pipeline produces two sine waves mixed together.
  87 </div>
  88 <p>
  89 </p>
  90 <p>
  91 Last reviewed on 2006-05-09 (0.10.7)
  92 </p>
  93 <div class="refsynopsisdiv">
  94 <h2>Synopsis</h2>
  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">
  99 <tbody>
 100 <tr>
 101 <td><p><span class="term">plugin</span></p></td>
 102 <td>
 103             <a class="link" href="gst-plugins-base-plugins-plugin-adder.html#plugin-adder">adder</a>
 104           </td>
 105 </tr>
 106 <tr>
 107 <td><p><span class="term">author</span></p></td>
 108 <td>Thomas Vander Stichele &lt;thomas at apestaart dot org&gt;</td>
 109 </tr>
 110 <tr>
 111 <td><p><span class="term">class</span></p></td>
 112 <td>Generic/Audio</td>
 113 </tr>
 114 </tbody>
 115 </table></div>
 116 </div>
 117 <hr>
 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">
 122 <tbody>
 123 <tr>
 124 <td><p><span class="term">name</span></p></td>
 125 <td>sink%d</td>
 126 </tr>
 127 <tr>
 128 <td><p><span class="term">direction</span></p></td>
 129 <td>sink</td>
 130 </tr>
 131 <tr>
 132 <td><p><span class="term">presence</span></p></td>
 133 <td>request</td>
 134 </tr>
 135 <tr>
 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>
 138 </tr>
 139 <tr>
 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>
 142 </tr>
 143 <tr>
 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>
 146 </tr>
 147 <tr>
 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>
 150 </tr>
 151 </tbody>
 152 </table></div>
 153 <div class="variablelist"><table border="0">
 154 <col align="left" valign="top">
 155 <tbody>
 156 <tr>
 157 <td><p><span class="term">name</span></p></td>
 158 <td>src</td>
 159 </tr>
 160 <tr>
 161 <td><p><span class="term">direction</span></p></td>
 162 <td>source</td>
 163 </tr>
 164 <tr>
 165 <td><p><span class="term">presence</span></p></td>
 166 <td>always</td>
 167 </tr>
 168 <tr>
 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>
 171 </tr>
 172 <tr>
 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>
 175 </tr>
 176 <tr>
 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>
 179 </tr>
 180 <tr>
 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>
 183 </tr>
 184 </tbody>
 185 </table></div>
 186 </div>
 187 </div>
 188 <p>
 189 </p>
 190 </div>
 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>
 196 <p>
 197 The adder object structure.
 198 </p>
 199 </div>
 200 </div>
 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>
 208 </div>
 209 </div>
 210 </div>
 211 <div class="footer">
 212 <hr>
 213           Generated by GTK-Doc V1.18</div>
 214 </body>
 215 </html>