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4<title>Vorbisfile - datatype - vorbis_info</title>
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11<td><p class=tiny>Vorbisfile documentation</p></td>
12<td align=right><p class=tiny>vorbisfile version 1.2.0 - 20070723</p></td>
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16<h1>vorbis_info</h1>
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18<p><i>declared in "vorbis/codec.h"</i></p>
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20<p>
21The vorbis_info structure contains basic information about the audio in a vorbis bitstream.
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27<pre><b>typedef struct vorbis_info{
28  int version;
29  int channels;
30  long rate;
31
32  long bitrate_upper;
33  long bitrate_nominal;
34  long bitrate_lower;
35  long bitrate_window;
36
37  void *codec_setup;
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39} vorbis_info;</b></pre>
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44<h3>Relevant Struct Members</h3>
45<dl>
46<dt><i>version</i></dt>
47<dd>Vorbis encoder version used to create this bitstream.</dd>
48<dt><i>channels</i></dt>
49<dd>Int signifying number of channels in bitstream.</dd>
50<dt><i>rate</i></dt>
51<dd>Sampling rate of the bitstream.</dd>
52<dt><i>bitrate_upper</i></dt>
53<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>
54<dt><i>bitrate_nominal</i></dt>
55<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>
56<dt><i>bitrate_lower</i></dt>
57<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>
58<dt><i>bitrate_window</i></dt>
59<dd>Currently unset.</dd>
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61<dt><i>codec_setup</i></dt>
62<dd>Internal structure that contains the detailed/unpacked configuration for decoding the current Vorbis bitstream.</dd>
63</dl>
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70<td><p class=tiny>copyright &copy; 2007 Xiph.org</p></td>
71<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/vorbis/">Ogg Vorbis</a></p></td>
72</tr><tr>
73<td><p class=tiny>Vorbisfile documentation</p></td>
74<td align=right><p class=tiny>vorbisfile version 1.2.0 - 20070723</p></td>
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