blob: 99d2bbeae59bb4d4e80069b0f8353f5b3238e447 [file] [log] [blame]
<html>
<head>
<title>vorbis - datatype - vorbis_info</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 release 1.1 - 20040709</p></td>
</tr>
</table>
<h1>vorbis_info</h1>
<p><i>declared in "vorbis/codec.h"</i></p>
<p>
The vorbis_info structure contains information about a vorbis bitstream.
<p>
<table border=0 width=100% color=black cellspacing=0 cellpadding=7>
<tr bgcolor=#cccccc>
<td>
<pre><b>typedef struct vorbis_info{
int version;
int channels;
long rate;
long bitrate_upper;
long bitrate_nominal;
long bitrate_lower;
long bitrate_window;
void *codec_setup;
} vorbis_info;</b></pre>
</td>
</tr>
</table>
<h3>Relevant Struct Members</h3>
<dl>
<dt><i>version</i></dt>
<dd>Vorbis encoder version used to create this bitstream.</dd>
<dt><i>channels</i></dt>
<dd>Int signifying number of channels in bitstream.</dd>
<dt><i>rate</i></dt>
<dd>Sampling rate of the bitstream.</dd>
<dt><i>bitrate_upper</i></dt>
<dd>Specifies the upper limit in a VBR bitstream. If the value matches the bitrate_nominal and bitrate_lower parameters, the stream is fixed bitrate. May be unset if no limit exists.</dd>
<dt><i>bitrate_nominal</i></dt>
<dd>Specifies the average bitrate for a VBR bitstream. May be unset. If the bitrate_upper and bitrate_lower parameters match, the stream is fixed bitrate.</dd>
<dt><i>bitrate_lower</i></dt>
<dd>Specifies the lower limit in a VBR bitstream. If the value matches the bitrate_nominal and bitrate_upper parameters, the stream is fixed bitrate. May be unset if no limit exists.</dd>
<dt><i>bitrate_window</i></dt>
<dd>Specifies the size of the bit reservoir in seconds relative to the nominal bitrate. May be unset.</dd>
<dt><i>codec_setup</i></dt>
<dd>Pointer to private encoder setup state.</dd>
</dl>
<br><br>
<hr noshade>
<table border=0 width=100%>
<tr valign=top>
<td><p class=tiny>copyright &copy; 2004 vorbis team</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/vorbis/index.html">Ogg Vorbis</a><br><a href="mailto:team@vorbis.org">team@vorbis.org</a></p></td>
</tr><tr>
<td><p class=tiny>vorbisfile documentation</p></td>
<td align=right><p class=tiny>libvorbisenc release 1.1 - 20040709</p></td>
</tr>
</table>
</body>
</html>