| 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374 | <html><head><title>Tremor - Seeking</title><link rel=stylesheet href="style.css" type="text/css"></head><body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff"><table border=0 width=100%><tr><td><p class=tiny>Tremor documentation</p></td><td align=right><p class=tiny>Tremor version 1.0 - 20020403</p></td></tr></table><h1>Seeking</h1><p>Seeking functions allow you to specify a specific point in the stream to begin or continue decoding.<p>All libvorbisidec seeking routines are declared in "ivorbisfile.h".<p>Certain seeking functions are best suited to different situations.When speed is important and exact positioning isn't required,page-level seeking should be used.  Note also that Vorbis files do notnecessarily start at a sample number or time offset of zero.  Do notbe surprised if a file begins at a positive offset of several minutesor hours, such as would happen if a large stream (such as a concertrecording) is chopped into multiple separate files.  Requesting toseek to a position before the beginning of such a file will seek tothe position where audio begins.<p></ul><table border=1 color=black width=50% cellspacing=0 cellpadding=7><tr bgcolor=#cccccc>	<td><b>function</b></td>	<td><b>purpose</b></td></tr><tr valign=top>	<td><a href="ov_raw_seek.html">ov_raw_seek</a></td>	<td>This function seeks to a position specified in the compressed bitstream, specified in bytes.</td></tr><tr valign=top>	<td><a href="ov_pcm_seek.html">ov_pcm_seek</a></td>	<td>This function seeks to a specific audio sample number, specified in pcm samples.</td></tr><tr valign=top>	<td><a href="ov_pcm_seek_page.html">ov_pcm_seek_page</a></td>	<td>This function seeks to the closest page preceding the specified audio sample number, specified in pcm samples.</td></tr><tr valign=top>	<td><a href="ov_time_seek.html">ov_time_seek</a></td>	<td>This function seeks to the specific time location in the bitstream, specified in integer milliseconds.  Note that this differs from the reference vorbisfile implementation, which takes seconds as a float. </td></tr><tr valign=top>	<td><a href="ov_time_seek_page.html">ov_time_seek_page</a></td>	<td>This function seeks to the closest page preceding the specified time position in the bitstream, specified in integer milliseconds.</td></tr></table><br><br><hr noshade><table border=0 width=100%><tr valign=top><td><p class=tiny>copyright © 2002 Xiph.org</p></td><td align=right><p class=tiny><a href="http://www.xiph.org/ogg/vorbis/">Ogg Vorbis</a></p></td></tr><tr><td><p class=tiny>Tremor documentation</p></td><td align=right><p class=tiny>Tremor version 1.0 - 20020403</p></td></tr></table></body></html>
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