1<html> 2 3<head> 4<title>Vorbisfile - function - ov_pcm_seek_page</title> 5<link rel=stylesheet href="style.css" type="text/css"> 6</head> 7 8<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff"> 9<table border=0 width=100%> 10<tr> 11<td><p class=tiny>Vorbisfile documentation</p></td> 12<td align=right><p class=tiny>vorbisfile version 1.2.0 - 20070723</p></td> 13</tr> 14</table> 15 16<h1>ov_pcm_seek_page</h1> 17 18<p><i>declared in "vorbis/vorbisfile.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 23decoder, so you can immediately call <a href="ov_read.html">ov_read()</a> and get data from 24the newly seeked to position. 25<p> 26 27<br><br> 28<table border=0 color=black cellspacing=0 cellpadding=7> 29<tr bgcolor=#cccccc> 30 <td> 31<pre><b> 32int ov_pcm_seek_page(OggVorbis_File *vf,ogg_int64_t pos); 33</b></pre> 34 </td> 35</tr> 36</table> 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 libvorbisfile 42functions.</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<ul> 51<li>0 for success</li> 52 53<li> 54nonzero indicates failure, described by several error codes: 55 <ul> 56 <li>OV_ENOSEEK - Bitstream is not seekable. 57 </li> 58 <li>OV_EINVAL - Invalid argument value; possibly called with an OggVorbis_File structure that isn't open. 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 libvorbisfile, or the requested link is corrupt. 66 </li> 67 </ul></li> 68</ul></blockquote> 69 70<br><br> 71<hr noshade> 72<table border=0 width=100%> 73<tr valign=top> 74<td><p class=tiny>copyright © 2007 Xiph.org</p></td> 75<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/vorbis/">Ogg Vorbis</a></p></td> 76</tr><tr> 77<td><p class=tiny>Vorbisfile documentation</p></td> 78<td align=right><p class=tiny>vorbisfile version 1.2.0 - 20070723</p></td> 79</tr> 80</table> 81 82</body> 83 84</html> 85