/usr/share/gtk-doc/html/gst-plugins-good-plugins-0.10/gst-plugins-good-plugins-audiowsincband.html is in gstreamer0.10-plugins-good-doc 0.10.31-1ubuntu1.5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 | <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>audiowsincband</title>
<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
<link rel="home" href="index.html" title="GStreamer Good Plugins 0.10 Plugins Reference Manual">
<link rel="up" href="ch01.html" title="gst-plugins-good Elements">
<link rel="prev" href="gst-plugins-good-plugins-audioiirfilter.html" title="audioiirfilter">
<link rel="next" href="gst-plugins-good-plugins-audiowsinclimit.html" title="audiowsinclimit">
<meta name="generator" content="GTK-Doc V1.18 (XML mode)">
<link rel="stylesheet" href="style.css" type="text/css">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="2">
<tr valign="middle">
<td><a accesskey="p" href="gst-plugins-good-plugins-audioiirfilter.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td>
<td><a accesskey="u" href="ch01.html"><img src="up.png" width="24" height="24" border="0" alt="Up"></a></td>
<td><a accesskey="h" href="index.html"><img src="home.png" width="24" height="24" border="0" alt="Home"></a></td>
<th width="100%" align="center">GStreamer Good Plugins 0.10 Plugins Reference Manual</th>
<td><a accesskey="n" href="gst-plugins-good-plugins-audiowsinclimit.html"><img src="right.png" width="24" height="24" border="0" alt="Next"></a></td>
</tr>
<tr><td colspan="5" class="shortcuts">
<a href="#gst-plugins-good-plugins-audiowsincband.synopsis" class="shortcut">Top</a>
|
<a href="#gst-plugins-good-plugins-audiowsincband.description" class="shortcut">Description</a>
|
<a href="#gst-plugins-good-plugins-audiowsincband.object-hierarchy" class="shortcut">Object Hierarchy</a>
|
<a href="#gst-plugins-good-plugins-audiowsincband.properties" class="shortcut">Properties</a>
</td></tr>
</table>
<div class="refentry">
<a name="gst-plugins-good-plugins-audiowsincband"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="gst-plugins-good-plugins-audiowsincband.top_of_page"></a>audiowsincband</span></h2>
<p>audiowsincband — Band pass and band reject windowed sinc filter</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv">
<a name="gst-plugins-good-plugins-audiowsincband.synopsis"></a><h2>Synopsis</h2>
<a name="GstAudioWSincBand"></a><pre class="synopsis">struct <a class="link" href="gst-plugins-good-plugins-audiowsincband.html#GstAudioWSincBand-struct" title="struct GstAudioWSincBand">GstAudioWSincBand</a>;
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-audiowsincband.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/gstreamer-0.10/GstObject.html">GstObject</a>
+----<a href="/usr/share/gtk-doc/html/gstreamer-0.10/GstElement.html">GstElement</a>
+----<a href="/usr/share/gtk-doc/html/gstreamer-libs-0.10/GstBaseTransform.html">GstBaseTransform</a>
+----<a href="/usr/share/gtk-doc/html/gst-plugins-base-libs-0.10/gst-plugins-base-libs-gstaudiofilter.html#GstAudioFilter">GstAudioFilter</a>
+----GstAudioFXBaseFIRFilter
+----GstAudioWSincBand
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-audiowsincband.properties"></a><h2>Properties</h2>
<pre class="synopsis">
"<a class="link" href="gst-plugins-good-plugins-audiowsincband.html#GstAudioWSincBand--lower-frequency" title='The "lower-frequency" property'>lower-frequency</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="gst-plugins-good-plugins-audiowsincband.html#GstAudioWSincBand--upper-frequency" title='The "upper-frequency" property'>upper-frequency</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="gst-plugins-good-plugins-audiowsincband.html#GstAudioWSincBand--mode" title='The "mode" property'>mode</a>" <span class="type">GstAudioWSincBandMode</span> : Read / Write
"<a class="link" href="gst-plugins-good-plugins-audiowsincband.html#GstAudioWSincBand--window" title='The "window" property'>window</a>" <span class="type">GstAudioWSincBandWindow</span> : Read / Write
"<a class="link" href="gst-plugins-good-plugins-audiowsincband.html#GstAudioWSincBand--length" title='The "length" property'>length</a>" <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-audiowsincband.description"></a><h2>Description</h2>
<p>
Attenuates all frequencies outside (bandpass) or inside (bandreject) of a frequency
band. The length parameter controls the rolloff, the window parameter
controls rolloff and stopband attenuation. The Hamming window provides a faster rolloff but a bit
worse stopband attenuation, the other way around for the Blackman window.
</p>
<p>
This element has the advantage over the Chebyshev bandpass and bandreject filter that it has
a much better rolloff when using a larger kernel size and almost linear phase. The only
disadvantage is the much slower execution time with larger kernels.
</p>
<p>
</p>
<div class="refsect2">
<a name="idp4747120"></a><h3>Example launch line</h3>
<div class="informalexample"><pre class="programlisting">
gst-launch audiotestsrc freq=1500 ! audioconvert ! audiosincband mode=band-pass lower-frequency=3000 upper-frequency=10000 length=501 window=blackman ! audioconvert ! alsasink
gst-launch filesrc location="melo1.ogg" ! oggdemux ! vorbisdec ! audioconvert ! audiowsincband mode=band-reject lower-frequency=59 upper-frequency=61 length=10001 window=hamming ! audioconvert ! alsasink
gst-launch audiotestsrc wave=white-noise ! audioconvert ! audiowsincband mode=band-pass lower-frequency=1000 upper-frequency=2000 length=31 ! audioconvert ! alsasink
</pre></div>
</div>
<p>
</p>
<div class="refsynopsisdiv">
<h2>Synopsis</h2>
<div class="refsect2">
<a name="idp5468152"></a><h3>Element Information</h3>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term">plugin</span></p></td>
<td>
<a class="link" href="gst-plugins-good-plugins-plugin-audiofx.html#plugin-audiofx">audiofx</a>
</td>
</tr>
<tr>
<td><p><span class="term">author</span></p></td>
<td>Thomas Vander Stichele <thomas at apestaart dot org>, Steven W. Smith, Dreamlab Technologies Ltd. <mathis.hofer@dreamlab.net>, Sebastian Dröge <sebastian.droege@collabora.co.uk></td>
</tr>
<tr>
<td><p><span class="term">class</span></p></td>
<td>Filter/Effect/Audio</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="idp3177832"></a><h3>Element Pads</h3>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<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>audio/x-raw-float, width=(int){ 32, 64 }, endianness=(int)1234, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ]</td>
</tr>
</tbody>
</table></div>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<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>audio/x-raw-float, width=(int){ 32, 64 }, endianness=(int)1234, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ]</td>
</tr>
</tbody>
</table></div>
</div>
</div>
<p>
</p>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-audiowsincband.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="GstAudioWSincBand-struct"></a><h3>struct GstAudioWSincBand</h3>
<pre class="programlisting">struct GstAudioWSincBand;</pre>
<p>
Opaque data structure.
</p>
</div>
</div>
<div class="refsect1">
<a name="gst-plugins-good-plugins-audiowsincband.property-details"></a><h2>Property Details</h2>
<div class="refsect2">
<a name="GstAudioWSincBand--lower-frequency"></a><h3>The <code class="literal">"lower-frequency"</code> property</h3>
<pre class="programlisting"> "lower-frequency" <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"><span class="type">gfloat</span></a> : Read / Write</pre>
<p>Cut-off lower frequency (Hz).</p>
<p>Allowed values: [0,100000]</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstAudioWSincBand--upper-frequency"></a><h3>The <code class="literal">"upper-frequency"</code> property</h3>
<pre class="programlisting"> "upper-frequency" <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gfloat"><span class="type">gfloat</span></a> : Read / Write</pre>
<p>Cut-off upper frequency (Hz).</p>
<p>Allowed values: [0,100000]</p>
<p>Default value: 0</p>
</div>
<hr>
<div class="refsect2">
<a name="GstAudioWSincBand--mode"></a><h3>The <code class="literal">"mode"</code> property</h3>
<pre class="programlisting"> "mode" <span class="type">GstAudioWSincBandMode</span> : Read / Write</pre>
<p>Band pass or band reject mode.</p>
<p>Default value: Band pass (default)</p>
</div>
<hr>
<div class="refsect2">
<a name="GstAudioWSincBand--window"></a><h3>The <code class="literal">"window"</code> property</h3>
<pre class="programlisting"> "window" <span class="type">GstAudioWSincBandWindow</span> : Read / Write</pre>
<p>Window function to use.</p>
<p>Default value: Hamming window (default)</p>
</div>
<hr>
<div class="refsect2">
<a name="GstAudioWSincBand--length"></a><h3>The <code class="literal">"length"</code> property</h3>
<pre class="programlisting"> "length" <a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> : Read / Write</pre>
<p>Filter kernel length, will be rounded to the next odd number.</p>
<p>Allowed values: [3,256000]</p>
<p>Default value: 101</p>
</div>
</div>
</div>
<div class="footer">
<hr>
Generated by GTK-Doc V1.18</div>
</body>
</html>
|