docs/plugins/html/gst-plugins-good-plugins-audioamplify.html

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  24 <a href="#gst-plugins-good-plugins-audioamplify.synopsis" class="shortcut">Top</a>
  25                    |
  26                   <a href="#gst-plugins-good-plugins-audioamplify.description" class="shortcut">Description</a>
  27                    |
  28                   <a href="#gst-plugins-good-plugins-audioamplify.object-hierarchy" class="shortcut">Object Hierarchy</a>
  29                    |
  30                   <a href="#gst-plugins-good-plugins-audioamplify.properties" class="shortcut">Properties</a>
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  33 <div class="refentry">
  34 <a name="gst-plugins-good-plugins-audioamplify"></a><div class="titlepage"></div>
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  37 <h2><span class="refentrytitle"><a name="gst-plugins-good-plugins-audioamplify.top_of_page"></a>audioamplify</span></h2>
  38 <p>audioamplify — Amplifies an audio stream by a given factor</p>
  39 </td>
  40 <td valign="top" align="right"></td>
  41 </tr></table></div>
  42 <div class="refsynopsisdiv">
  43 <a name="gst-plugins-good-plugins-audioamplify.synopsis"></a><h2>Synopsis</h2>
  44 <a name="GstAudioAmplify"></a><pre class="synopsis">struct              <a class="link" href="gst-plugins-good-plugins-audioamplify.html#GstAudioAmplify-struct" title="struct GstAudioAmplify">GstAudioAmplify</a>;
  45 </pre>
  46 </div>
  47 <div class="refsect1">
  48 <a name="gst-plugins-good-plugins-audioamplify.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                +----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer-libs/html/GstBaseTransform.html">GstBaseTransform</a>
  54                      +----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-base-libs/html/gst-plugins-base-libs-gstaudiofilter.html#GstAudioFilter">GstAudioFilter</a>
  55                            +----GstAudioAmplify
  56 </pre>
  57 </div>
  58 <div class="refsect1">
  59 <a name="gst-plugins-good-plugins-audioamplify.properties"></a><h2>Properties</h2>
  60 <pre class="synopsis">
  61   "<a class="link" href="gst-plugins-good-plugins-audioamplify.html#GstAudioAmplify--amplification" title='The "amplification" property'>amplification</a>"            <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"><span class="type">gfloat</span></a>                : Read / Write
  62   "<a class="link" href="gst-plugins-good-plugins-audioamplify.html#GstAudioAmplify--clipping-method" title='The "clipping-method" property'>clipping-method</a>"          <span class="type">GstAudioPanoramaClippingMethod</span>  : Read / Write
  63 </pre>
  64 </div>
  65 <div class="refsect1">
  66 <a name="gst-plugins-good-plugins-audioamplify.description"></a><h2>Description</h2>
  67 <p>
  68 Amplifies an audio stream by a given factor and allows the selection of different clipping modes.
  69 The difference between the clipping modes is best evaluated by testing.
  70 </p>
  71 <p>
  72 </p>
  73 <div class="refsect2">
  74 <a name="idp5363600"></a><h3>Example launch line</h3>
  75 <div class="informalexample">
  76   <table class="listing_frame" border="0" cellpadding="0" cellspacing="0">
  77     <tbody>
  78       <tr>
  79         <td class="listing_lines" align="right"><pre>1
  80 2
  81 3</pre></td>
  82         <td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch audiotestsrc wave<span class="gtkdoc opt">=</span>saw <span class="gtkdoc opt">!</span> audioamplify amplification<span class="gtkdoc opt">=</span><span class="number">1.5</span> <span class="gtkdoc opt">!</span> alsasink
  83 gst<span class="gtkdoc opt">-</span>launch filesrc location<span class="gtkdoc opt">=</span><span class="string">&quot;melo1.ogg&quot;</span> <span class="gtkdoc opt">!</span> oggdemux <span class="gtkdoc opt">!</span> vorbisdec <span class="gtkdoc opt">!</span> audioconvert <span class="gtkdoc opt">!</span> audioamplify amplification<span class="gtkdoc opt">=</span><span class="number">1.5</span> method<span class="gtkdoc opt">=</span>wrap<span class="gtkdoc opt">-</span>negative <span class="gtkdoc opt">!</span> alsasink
  84 gst<span class="gtkdoc opt">-</span>launch audiotestsrc wave<span class="gtkdoc opt">=</span>saw <span class="gtkdoc opt">!</span> audioconvert <span class="gtkdoc opt">!</span> audioamplify amplification<span class="gtkdoc opt">=</span><span class="number">1.5</span> method<span class="gtkdoc opt">=</span>wrap<span class="gtkdoc opt">-</span>positive <span class="gtkdoc opt">!</span> audioconvert <span class="gtkdoc opt">!</span> alsasink</pre></td>
  85       </tr>
  86     </tbody>
  87   </table>
  88 </div>
  89
  90 </div>
  91 <p>
  92 </p>
  93 <div class="refsynopsisdiv">
  94 <h2>Synopsis</h2>
  95 <div class="refsect2">
  96 <a name="idp8426928"></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-good-plugins-plugin-audiofx.html#plugin-audiofx">audiofx</a>
 104           </td>
 105 </tr>
 106 <tr>
 107 <td><p><span class="term">author</span></p></td>
 108 <td>Sebastian Dröge &lt;slomo@circular-chaos.org&gt;</td>
 109 </tr>
 110 <tr>
 111 <td><p><span class="term">class</span></p></td>
 112 <td>Filter/Effect/Audio</td>
 113 </tr>
 114 </tbody>
 115 </table></div>
 116 </div>
 117 <hr>
 118 <div class="refsect2">
 119 <a name="idp8618992"></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</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>always</td>
 134 </tr>
 135 <tr>
 136 <td><p><span class="term">details</span></p></td>
 137 <td>audio/x-raw-int, depth=(int)8, width=(int)8, endianness=(int)1234, signed=(boolean)true, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ]</td>
 138 </tr>
 139 <tr>
 140 <td><p><span class="term"></span></p></td>
 141 <td> audio/x-raw-int, depth=(int)16, width=(int)16, endianness=(int)1234, signed=(boolean)true, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ]</td>
 142 </tr>
 143 <tr>
 144 <td><p><span class="term"></span></p></td>
 145 <td> audio/x-raw-int, depth=(int)32, width=(int)32, endianness=(int)1234, signed=(boolean)true, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ]</td>
 146 </tr>
 147 <tr>
 148 <td><p><span class="term"></span></p></td>
 149 <td> audio/x-raw-float, width=(int){ 32, 64 }, endianness=(int)1234, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ]</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, depth=(int)8, width=(int)8, endianness=(int)1234, signed=(boolean)true, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ]</td>
 171 </tr>
 172 <tr>
 173 <td><p><span class="term"></span></p></td>
 174 <td> audio/x-raw-int, depth=(int)16, width=(int)16, endianness=(int)1234, signed=(boolean)true, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ]</td>
 175 </tr>
 176 <tr>
 177 <td><p><span class="term"></span></p></td>
 178 <td> audio/x-raw-int, depth=(int)32, width=(int)32, endianness=(int)1234, signed=(boolean)true, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ]</td>
 179 </tr>
 180 <tr>
 181 <td><p><span class="term"></span></p></td>
 182 <td> audio/x-raw-float, width=(int){ 32, 64 }, endianness=(int)1234, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ]</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-good-plugins-audioamplify.details"></a><h2>Details</h2>
 193 <div class="refsect2">
 194 <a name="GstAudioAmplify-struct"></a><h3>struct GstAudioAmplify</h3>
 195 <pre class="programlisting">struct GstAudioAmplify;</pre>
 196 <p>
 197 </p>
 198 </div>
 199 </div>
 200 <div class="refsect1">
 201 <a name="gst-plugins-good-plugins-audioamplify.property-details"></a><h2>Property Details</h2>
 202 <div class="refsect2">
 203 <a name="GstAudioAmplify--amplification"></a><h3>The <code class="literal">"amplification"</code> property</h3>
 204 <pre class="programlisting">  "amplification"            <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"><span class="type">gfloat</span></a>                : Read / Write</pre>
 205 <p>Factor of amplification.</p>
 206 <p>Default value: 1</p>
 207 </div>
 208 <hr>
 209 <div class="refsect2">
 210 <a name="GstAudioAmplify--clipping-method"></a><h3>The <code class="literal">"clipping-method"</code> property</h3>
 211 <pre class="programlisting">  "clipping-method"          <span class="type">GstAudioPanoramaClippingMethod</span>  : Read / Write</pre>
 212 <p>
 213 Clipping method: clip mode set values higher than the maximum to the
 214 maximum. The wrap-negative mode pushes those values back from the
 215 opposite side, wrap-positive pushes them back from the same side.
 216 </p>
 217 <p>Default value: Normal clipping (default)</p>
 218 </div>
 219 </div>
 220 </div>
 221 <div class="footer">
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