82 lines
2.3 KiB
HTML
Executable File
82 lines
2.3 KiB
HTML
Executable File
<html>
|
|
|
|
<head>
|
|
<title>libvorbisenc - function - vorbis_encode_init_vbr</title>
|
|
<link rel=stylesheet href="style.css" type="text/css">
|
|
</head>
|
|
|
|
<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
|
|
<table border=0 width=100%>
|
|
<tr>
|
|
<td><p class=tiny>libvorbisenc documentation</p></td>
|
|
<td align=right><p class=tiny>libvorbisenc version 1.3.2 - 20101101</p></td>
|
|
</tr>
|
|
</table>
|
|
|
|
<h1>vorbis_encode_init_vbr</h1>
|
|
|
|
<p><i>declared in "vorbis/vorbisenc.h";</i></p>
|
|
|
|
<p>This is the primary function within libvorbisenc for setting up variable bitrate ("quality" based) modes.
|
|
<p>Before this function is called, the <a href="../libvorbis/vorbis_info.html">vorbis_info</a> struct should be initialized by using vorbis_info_init() from the libvorbis API. After encoding, vorbis_info_clear should be called.
|
|
<p>
|
|
<br><br>
|
|
<table border=0 color=black cellspacing=0 cellpadding=7>
|
|
<tr bgcolor=#cccccc>
|
|
<td>
|
|
<pre><b>
|
|
extern int vorbis_encode_init_vbr(<a href="../libvorbis/vorbis_info.html">vorbis_info</a> *vi,
|
|
long channels,
|
|
long rate,
|
|
|
|
float base_quality);
|
|
|
|
</b></pre>
|
|
</td>
|
|
</tr>
|
|
</table>
|
|
|
|
<h3>Parameters</h3>
|
|
<dl>
|
|
<dt><i>vi</i></dt>
|
|
<dd>Pointer to an initialized <a href="../libvorbis/vorbis_info.html">vorbis_info</a> struct.</dd>
|
|
<dt><i>channels</i></dt>
|
|
<dd>The number of channels to be encoded.</dd>
|
|
<dt><i>rate</i></dt>
|
|
<dd>The sampling rate of the source audio.</dd>
|
|
<dt><i>base_quality</i></dt>
|
|
<dd>Desired quality level, currently from -0.1 to 1.0 (lo to hi).</dd>
|
|
</dl>
|
|
|
|
|
|
<h3>Return Values</h3>
|
|
<blockquote>
|
|
<li>
|
|
0 for success</li>
|
|
|
|
<li>less than zero for failure:</li>
|
|
<ul>
|
|
<li>OV_EFAULT - Internal logic fault; indicates a bug or heap/stack corruption.</li>
|
|
<li>OV_EINVAL - Invalid setup request, eg, out of range argument. </li>
|
|
<li>OV_EIMPL - Unimplemented mode; unable to comply with quality level request.</li>
|
|
</ul>
|
|
</blockquote>
|
|
<p>
|
|
|
|
<br><br>
|
|
<hr noshade>
|
|
<table border=0 width=100%>
|
|
<tr valign=top>
|
|
<td><p class=tiny>copyright © 2000-2010 Xiph.Org</p></td>
|
|
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/vorbis/index.html">Ogg Vorbis</a></p></td>
|
|
</tr><tr>
|
|
<td><p class=tiny>libvorbisenc documentation</p></td>
|
|
<td align=right><p class=tiny>libvorbisenc version 1.3.2 - 20101101</p></td>
|
|
</tr>
|
|
</table>
|
|
|
|
|
|
</body>
|
|
|
|
</html>
|