1<html> 2 3<head> 4<title>libogg - function - ogg_sync_pageout</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>libogg documentation</p></td> 12<td align=right><p class=tiny>libogg release 1.1.4 - 20090520</p></td> 13</tr> 14</table> 15 16<h1>ogg_sync_pageout</h1> 17 18<p><i>declared in "ogg/ogg.h";</i></p> 19 20<p>This function takes the data stored in the buffer of the <a href="ogg_sync_state.html">ogg_sync_state</a> struct and inserts them into an <a href="ogg_page.html">ogg_page</a>. 21 22<p>In an actual decoding loop, this function should be called first to ensure that the buffer is cleared. The example code below illustrates a clean reading loop which will fill and output pages. 23<p><b>Caution:</b>This function should be called before reading into the buffer to ensure that data does not remain in the ogg_sync_state struct. Failing to do so may result in a memory leak. See the example code below for details. 24 25<br><br> 26<table border=0 color=black cellspacing=0 cellpadding=7> 27<tr bgcolor=#cccccc> 28 <td> 29<pre><b> 30int ogg_sync_pageout(<a href="ogg_sync_state.html">ogg_sync_state</a> *oy, <a href="ogg_page.html">ogg_page</a> *og); 31</b></pre> 32 </td> 33</tr> 34</table> 35 36<h3>Parameters</h3> 37<dl> 38<dt><i>oy</i></dt> 39<dd>Pointer to a previously declared <a href="ogg_sync_state.html">ogg_sync_state</a> struct. Normally, the internal storage of this struct should be filled with newly read data and verified using <a href="ogg_sync_wrote.html">ogg_sync_wrote</a>.</dd> 40<dt><i>og</i></dt> 41<dd>Pointer to page struct filled by this function. 42</dl> 43 44 45<h3>Return Values</h3> 46<blockquote> 47<li>-1 returned if stream has not yet captured sync (bytes were skipped).</li> 48<li>0 returned if more data needed or an internal error occurred.</li> 49<li>1 indicated a page was synced and returned.</li> 50</blockquote> 51<p> 52 53<h3>Example Usage</h3> 54<pre> 55if (ogg_sync_pageout(&oy, &og) != 1) { 56 buffer = ogg_sync_buffer(&oy, 8192); 57 bytes = fread(buffer, 1, 8192, stdin); 58 ogg_sync_wrote(&oy, bytes); 59} 60</pre> 61 62<br><br> 63<hr noshade> 64<table border=0 width=100%> 65<tr valign=top> 66<td><p class=tiny>copyright © 2000-2009 Xiph.Org</p></td> 67<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td> 68</tr><tr> 69<td><p class=tiny>libogg documentation</p></td> 70<td align=right><p class=tiny>libogg release 1.1.4 - 20090520</p></td> 71</tr> 72</table> 73 74 75</body> 76 77</html> 78