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-<html>
-
-<head>
-<title>libvorbis - function - vorbis_analysis</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>libvorbis documentation</p></td>
-<td align=right><p class=tiny>libvorbis version 1.3.2 - 20101101</p></td>
-</tr>
-</table>
-
-<h1>vorbis_analysis</h1>
-
-<p><i>declared in "vorbis/codec.h";</i></p>
-
-<p>Once the uncompressed audio data has been divided into blocks, this
-function is called on each block. It looks up the encoding mode and
-dispatches the block to the forward transform provided by that mode.
-</p>
-<p>When using a basic encoding mode, with no bitrate management,
-an ogg_packet pointer can be given, and the coded block is returned
-directly through that structure and can be placed in the output stream.
-</p>
-<p>Otherwise, NULL should be passed for the ogg_packet pointer. In
-that case, after the transform has been applied, the block must passed
-to vorbis_bitrate_addblock() for further coding. This method works with
-both basic and managed encoding modes, so it's recommended for new code.
-</p>
-
-<table border=0 color=black cellspacing=0 cellpadding=7>
-<tr bgcolor=#cccccc>
- <td>
-<pre><b>
-extern int vorbis_analysis(vorbis_block *vb,ogg_packet *op);
-</b></pre>
- </td>
-</tr>
-</table>
-
-<h3>Parameters</h3>
-<dl>
-<dt><i>vb</i></dt>
-<dd>Pointer to the vorbis_block to be encoded.</dd>
-<dt><i>op</i></dt>
-<dd>Optional pointer to an ogg_packet. This is normally NULL,
-and the final output is obtained by passing <i>vb</i> though the
-vorbis_bitrate_*() interface to perform further refinement.
-However, when not using a bitrate managed encoding mode, it
-is possible to skip that step by providing an ogg_packet pointer
-here, obtaining the compressed data directly.</dd>
-</dl>
-
-
-<h3>Return Values</h3>
-<ul>
-<li>0 for success</li>
-<li>negative values for failure:
-<ul>
-<li>OV_EINVAL - Invalid request; a non-NULL value was passed for <i>op</i> when the encoder is using a bitrate managed mode.</li>
-<li>OV_EFAULT - Internal fault; indicates a bug or memory corruption.</li>
-<li>OV_EIMPL - Unimplemented; not supported by this version of the library.</li>
-</ul>
-</li>
-</ul>
-<p>
-
-<br><br>
-<hr noshade>
-<table border=0 width=100%>
-<tr valign=top>
-<td><p class=tiny>copyright &copy; 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>libvorbis documentation</p></td>
-<td align=right><p class=tiny>libvorbis version 1.3.2 - 20101101</p></td>
-</tr>
-</table>
-
-
-</body>
-
-</html>