Tremor/doc/ov_pcm_seek_page.html

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   4 <title>Tremor - function - ov_pcm_seek_page</title>
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  11 <td><p class=tiny>Tremor documentation</p></td>
  12 <td align=right><p class=tiny>Tremor version 1.0 - 20020403</p></td>
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  16 <h1>ov_pcm_seek_page</h1>
  17
  18 <p><i>declared in "ivorbisfile.h";</i></p>
  19
  20 <p>Seeks to the closest page preceding the specified location (in pcm samples) within the physical bitstream.  This function only works for seekable streams.
  21 <p>This function is faster than <a href="ov_pcm_seek.html">ov_pcm_seek</a> because the function can begin decoding at a page boundary rather than seeking through any remaining samples before the specified location.  However, it is less accurate.
  22 <p>This also updates everything needed within the
  23 decoder, so you can immediately call <a href="ov_read.html">ov_read()</a> and get data from
  24 the newly seeked to position.
  25 <p>
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  31 <pre><b>
  32 int ov_pcm_seek_page(OggVorbis_File *vf,ogg_int64_t pos);
  33 </b></pre>
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  37
  38 <h3>Parameters</h3>
  39 <dl>
  40 <dt><i>vf</i></dt>
  41 <dd>A pointer to the OggVorbis_File structure--this is used for ALL the externally visible libvorbisidec
  42 functions.</dd>
  43 <dt><i>pos</i></dt>
  44 <dd>Position in pcm samples to seek to in the bitstream.</dd>
  45 </dl>
  46
  47
  48 <h3>Return Values</h3>
  49 <blockquote>
  50 <li>
  51 0 for success</li>
  52
  53 <li>
  54 nonzero indicates failure, described by several error codes:</li>
  55 <ul>
  56 <li>OV_ENOSEEK - Bitstream is not seekable.
  57 </li>
  58 <li>OV_EINVAL - Invalid argument value.
  59 </li>
  60 <li>OV_EREAD - A read from media returned an error.
  61 </li>
  62 <li>OV_EFAULT - Internal logic fault; indicates a bug or heap/stack
  63                 corruption.
  64 </li>
  65 <li>OV_EBADLINK - Invalid stream section supplied to libvorbisidec, or the requested link is corrupt.
  66 </li>
  67 </ul></blockquote>
  68
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  73 <td><p class=tiny>copyright &copy; 2002 Xiph.org</p></td>
  74 <td align=right><p class=tiny><a href="http://www.xiph.org/ogg/vorbis/">Ogg Vorbis</a></p></td>
  75 </tr><tr>
  76 <td><p class=tiny>Tremor documentation</p></td>
  77 <td align=right><p class=tiny>Tremor version 1.0 - 20020403</p></td>
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