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 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> 26 27 <br><br> 28 <table border=0 color=black cellspacing=0 cellpadding=7> 29 <tr bgcolor=#cccccc> 30 <td> 31 <pre><b> 32 int 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 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 <ul> 51 <li>0 for success</li> 52 53 <li> 54 nonzero 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
