/usr/share/gtk-doc/html/gst-plugins-base-libs-0.10/gst-plugins-base-libs-gstfft.html is in gstreamer0.10-plugins-base-doc 0.10.36-1ubuntu0.2.
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 | <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>gstfft</title>
<meta name="generator" content="DocBook XSL Stylesheets V1.76.1">
<link rel="home" href="index.html" title="GStreamer Base Plugins 0.10 Library Reference Manual">
<link rel="up" href="gstreamer-ffft.html" title="FFT Library">
<link rel="prev" href="gstreamer-ffft.html" title="FFT Library">
<link rel="next" href="gst-plugins-base-libs-gstffts16.html" title="gstffts16">
<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="gstreamer-ffft.html"><img src="left.png" width="24" height="24" border="0" alt="Prev"></a></td>
<td><a accesskey="u" href="gstreamer-ffft.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 Base Plugins 0.10 Library Reference Manual</th>
<td><a accesskey="n" href="gst-plugins-base-libs-gstffts16.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-base-libs-gstfft.synopsis" class="shortcut">Top</a>
|
<a href="#gst-plugins-base-libs-gstfft.description" class="shortcut">Description</a>
</td></tr>
</table>
<div class="refentry">
<a name="gst-plugins-base-libs-gstfft"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="gst-plugins-base-libs-gstfft.top_of_page"></a>gstfft</span></h2>
<p>gstfft — General FFT functions and declarations</p>
</td>
<td valign="top" align="right"></td>
</tr></table></div>
<div class="refsynopsisdiv">
<a name="gst-plugins-base-libs-gstfft.synopsis"></a><h2>Synopsis</h2>
<pre class="synopsis">
#include <gst/fft/gstfft.h>
enum <a class="link" href="gst-plugins-base-libs-gstfft.html#GstFFTWindow" title="enum GstFFTWindow">GstFFTWindow</a>;
<a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a> <a class="link" href="gst-plugins-base-libs-gstfft.html#gst-fft-next-fast-length" title="gst_fft_next_fast_length ()">gst_fft_next_fast_length</a> (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> n</code></em>);
</pre>
</div>
<div class="refsect1">
<a name="gst-plugins-base-libs-gstfft.description"></a><h2>Description</h2>
<p>
This library includes general definitions and functions, useful for
all typed FFT classes.
</p>
</div>
<div class="refsect1">
<a name="gst-plugins-base-libs-gstfft.details"></a><h2>Details</h2>
<div class="refsect2">
<a name="GstFFTWindow"></a><h3>enum GstFFTWindow</h3>
<pre class="programlisting">typedef enum {
GST_FFT_WINDOW_RECTANGULAR,
GST_FFT_WINDOW_HAMMING,
GST_FFT_WINDOW_HANN,
GST_FFT_WINDOW_BARTLETT,
GST_FFT_WINDOW_BLACKMAN
} GstFFTWindow;
</pre>
<p>
The various window functions available.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><a name="GST-FFT-WINDOW-RECTANGULAR:CAPS"></a><span class="term"><code class="literal">GST_FFT_WINDOW_RECTANGULAR</code></span></p></td>
<td>Rectangular window
</td>
</tr>
<tr>
<td><p><a name="GST-FFT-WINDOW-HAMMING:CAPS"></a><span class="term"><code class="literal">GST_FFT_WINDOW_HAMMING</code></span></p></td>
<td>Hamming window
</td>
</tr>
<tr>
<td><p><a name="GST-FFT-WINDOW-HANN:CAPS"></a><span class="term"><code class="literal">GST_FFT_WINDOW_HANN</code></span></p></td>
<td>Hann (sometimes also called Hanning) window
</td>
</tr>
<tr>
<td><p><a name="GST-FFT-WINDOW-BARTLETT:CAPS"></a><span class="term"><code class="literal">GST_FFT_WINDOW_BARTLETT</code></span></p></td>
<td>Bartlett window
</td>
</tr>
<tr>
<td><p><a name="GST-FFT-WINDOW-BLACKMAN:CAPS"></a><span class="term"><code class="literal">GST_FFT_WINDOW_BLACKMAN</code></span></p></td>
<td>Blackman window
</td>
</tr>
</tbody>
</table></div>
</div>
<hr>
<div class="refsect2">
<a name="gst-fft-next-fast-length"></a><h3>gst_fft_next_fast_length ()</h3>
<pre class="programlisting"><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="returnvalue">gint</span></a> gst_fft_next_fast_length (<em class="parameter"><code><a href="/usr/share/gtk-doc/html/glib/glib-Basic-Types.html#gint"><span class="type">gint</span></a> n</code></em>);</pre>
<p>
Returns the next number to <em class="parameter"><code>n</code></em> that is entirely a product
of 2, 3 and 5. Using this as the <em class="parameter"><code>len</code></em> parameter for
the different GstFFT types will provide the best performance.
</p>
<div class="variablelist"><table border="0">
<col align="left" valign="top">
<tbody>
<tr>
<td><p><span class="term"><em class="parameter"><code>n</code></em> :</span></p></td>
<td>Number for which the next fast length should be returned</td>
</tr>
<tr>
<td><p><span class="term"><span class="emphasis"><em>Returns</em></span> :</span></p></td>
<td>the next fast FFT length.</td>
</tr>
</tbody>
</table></div>
</div>
</div>
</div>
<div class="footer">
<hr>
Generated by GTK-Doc V1.18</div>
</body>
</html>
|