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<title>Tremor - datatype - vorbis_info</title>
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<td><p class=tiny>Tremor documentation</p></td>
<td align=right><p class=tiny>Tremor version 1.0 - 20020403</p></td>
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<h1>vorbis_info</h1>

<p><i>declared in "ivorbiscodec.h"</i></p>

<p>
The vorbis_info structure contains basic information about the audio in a vorbis bitstream.
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<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>
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<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>Currently unset.</dd>

<dt><i>codec_setup</i></dt>
<dd>Internal structure that contains the detailed/unpacked configuration for decoding the current Vorbis bitstream.</dd>
</dl>


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<td><p class=tiny>copyright &copy; 2002 Xiph.org</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/vorbis/">Ogg Vorbis</a></p></td>
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<td><p class=tiny>Tremor documentation</p></td>
<td align=right><p class=tiny>Tremor version 1.0 - 20020403</p></td>
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