<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>speed</title> <meta name="generator" content="DocBook XSL Stylesheets V1.78.1"> <link rel="home" href="index.html" title="GStreamer Bad Plugins 1.0 Plugins Reference Manual"> <link rel="up" href="ch01.html" title="gst-plugins-bad Elements"> <link rel="prev" href="gst-plugins-bad-plugins-synaescope.html" title="synaescope"> <link rel="next" href="gst-plugins-bad-plugins-sphere.html" title="sphere"> <meta name="generator" content="GTK-Doc V1.19 (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-bad-plugins-synaescope.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 Bad Plugins 1.0 Plugins Reference Manual</th> <td><a accesskey="n" href="gst-plugins-bad-plugins-sphere.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-bad-plugins-speed.synopsis" class="shortcut">Top</a> | <a href="#gst-plugins-bad-plugins-speed.description" class="shortcut">Description</a> | <a href="#gst-plugins-bad-plugins-speed.object-hierarchy" class="shortcut">Object Hierarchy</a> | <a href="#gst-plugins-bad-plugins-speed.properties" class="shortcut">Properties</a> </td></tr> </table> <div class="refentry"> <a name="gst-plugins-bad-plugins-speed"></a><div class="titlepage"></div> <div class="refnamediv"><table width="100%"><tr> <td valign="top"> <h2><span class="refentrytitle"><a name="gst-plugins-bad-plugins-speed.top_of_page"></a>speed</span></h2> <p>speed — Set speed/pitch on audio/raw streams (resampler)</p> </td> <td valign="top" align="right"></td> </tr></table></div> <div class="refsynopsisdiv"> <a name="gst-plugins-bad-plugins-speed.synopsis"></a><h2>Synopsis</h2> <a name="GstSpeed"></a><pre class="synopsis">struct <a class="link" href="gst-plugins-bad-plugins-speed.html#GstSpeed-struct" title="struct GstSpeed">GstSpeed</a>; </pre> </div> <div class="refsect1"> <a name="gst-plugins-bad-plugins-speed.object-hierarchy"></a><h2>Object Hierarchy</h2> <pre class="synopsis"> <a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GObject">GObject</a> +----<a href="http://library.gnome.org/devel/gobject/unstable/gobject-The-Base-Object-Type.html#GInitiallyUnowned">GInitiallyUnowned</a> +----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstObject.html">GstObject</a> +----<a href="http://gstreamer.freedesktop.org/data/doc/gstreamer/head/gstreamer/html/GstElement.html">GstElement</a> +----GstSpeed </pre> </div> <div class="refsect1"> <a name="gst-plugins-bad-plugins-speed.properties"></a><h2>Properties</h2> <pre class="synopsis"> "<a class="link" href="gst-plugins-bad-plugins-speed.html#GstSpeed--speed" title='The "speed" property'>speed</a>" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"><span class="type">gfloat</span></a> : Read / Write / Construct </pre> </div> <div class="refsect1"> <a name="gst-plugins-bad-plugins-speed.description"></a><h2>Description</h2> <p> Plays an audio stream at a different speed (by resampling the audio). </p> <p> Do not use this element. Either use the 'pitch' element, or do a seek with a non-1.0 rate parameter, this will have the same effect as using the speed element (but relies on the decoder/demuxer to handle this correctly, also requires a fairly up-to-date gst-plugins-base, as of February 2007). </p> <p> </p> <div class="refsect2"> <a name="id-1.2.64.6.4.1"></a><h3>Example launch line</h3> <div class="informalexample"> <table class="listing_frame" border="0" cellpadding="0" cellspacing="0"> <tbody> <tr> <td class="listing_lines" align="right"><pre>1</pre></td> <td class="listing_code"><pre class="programlisting">gst<span class="gtkdoc opt">-</span>launch filesrc location<span class="gtkdoc opt">=</span>test<span class="gtkdoc opt">.</span>ogg <span class="gtkdoc opt">!</span> decodebin <span class="gtkdoc opt">!</span> audioconvert <span class="gtkdoc opt">!</span> speed speed<span class="gtkdoc opt">=</span><span class="number">1.5</span> <span class="gtkdoc opt">!</span> audioconvert <span class="gtkdoc opt">!</span> audioresample <span class="gtkdoc opt">!</span> autoaudiosink</pre></td> </tr> </tbody> </table> </div> Plays an .ogg file at 1.5x speed. </div> <p> </p> <p> Last reviewed on 2007-02-26 (0.10.4.1) </p> <div class="refsynopsisdiv"> <h2>Synopsis</h2> <div class="refsect2"> <a name="id-1.2.64.6.6.1"></a><h3>Element Information</h3> <div class="variablelist"><table border="0" class="variablelist"> <colgroup> <col align="left" valign="top"> <col> </colgroup> <tbody> <tr> <td><p><span class="term">plugin</span></p></td> <td> <a class="link" href="gst-plugins-bad-plugins-plugin-speed.html#plugin-speed">speed</a> </td> </tr> <tr> <td><p><span class="term">author</span></p></td> <td>Andy Wingo <apwingo@eos.ncsu.edu>, Tim-Philipp Müller <tim@centricular.net></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="id-1.2.64.6.6.2"></a><h3>Element Pads</h3> <div class="variablelist"><table border="0" class="variablelist"> <colgroup> <col align="left" valign="top"> <col> </colgroup> <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, format=(string){ F32LE, S16LE }, rate=(int)[ 1, 2147483647 ], channels=(int)[ 1, 2147483647 ]</td> </tr> </tbody> </table></div> <div class="variablelist"><table border="0" class="variablelist"> <colgroup> <col align="left" valign="top"> <col> </colgroup> <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, format=(string){ F32LE, S16LE }, 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-bad-plugins-speed.details"></a><h2>Details</h2> <div class="refsect2"> <a name="GstSpeed-struct"></a><h3>struct GstSpeed</h3> <pre class="programlisting">struct GstSpeed;</pre> <p> </p> </div> </div> <div class="refsect1"> <a name="gst-plugins-bad-plugins-speed.property-details"></a><h2>Property Details</h2> <div class="refsect2"> <a name="GstSpeed--speed"></a><h3>The <code class="literal">"speed"</code> property</h3> <pre class="programlisting"> "speed" <a href="http://library.gnome.org/devel/glib/unstable/glib-Basic-Types.html#gfloat"><span class="type">gfloat</span></a> : Read / Write / Construct</pre> <p>speed.</p> <p>Allowed values: [0.1,40]</p> <p>Default value: 1</p> </div> </div> </div> <div class="footer"> <hr> Generated by GTK-Doc V1.19</div> </body> </html>