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<title>libvorbis - function - vorbis_synthesis_headerin</title>
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<td><p class=tiny>libvorbis documentation</p></td>
<td align=right><p class=tiny>libvorbis version 1.3.2 - 20101101</p></td>
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<h1>vorbis_synthesis_headerin</h1>

<p><i>declared in "vorbis/codec.h";</i></p>

<p>This function decodes a header packet from a Vorbis stream and applies
the contents to the given <a href="vorbis_info.html">vorbis_info</a>
structure (to provide codec parameters to the decoder) and
<a href="vorbis_comment.html">vorbis_comment</a> structure (to provide
access to the embedded Vorbis comments).</p>

<p>Once the three Vorbis header packets (info, comments,
and codebooks, in that order) have been passed to this
function, the <a href="vorbis_info.html">vorbis_info</a>
structure is ready to be used in a call to
<a href="vorbis_synthesis_init.html">vorbis_synthesis_init</a>.</p>

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<pre><b>
extern int      vorbis_synthesis_headerin(vorbis_info *vi,vorbis_comment *vc,
                                          ogg_packet *op);
</b></pre>
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<h3>Parameters</h3>
<dl>
<dt><i>vi</i></dt>
<dd>The <a href="vorbis_info.html">vorbis_info</a> structure to apply
the decoded information to.</dd>
<dt><i>vc</i></dt>
<dd>The <a href="vorbis_comment.html">vorbis_comment</a> structure to
apply the decoded comments to.</dd>
<dt><i>op</i></dt>
<dd>The ogg_packet to decode.</dd>
</dl>


<h3>Return Values</h3>
<blockquote>
<li>0 on success.</li>
<li>OV_ENOTVORBIS if the packet is not a Vorbis header packet.</li>
<li>OV_EBADHEADER if there was an error interpreting the packet.</li>
<li>OV_EFAULT on internal error.</li>
</blockquote>
<p>

<br><br>
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<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>
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<td><p class=tiny>libvorbis documentation</p></td>
<td align=right><p class=tiny>libvorbis version 1.3.2 - 20101101</p></td>
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author	Chris Cannam
date	Fri, 07 Feb 2020 11:51:13 +0000
parents	05aa0afa9217
children