80 lines
2.5 KiB
HTML
80 lines
2.5 KiB
HTML
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<html>
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<head>
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<title>libogg - function - ogg_sync_pageout</title>
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<link rel=stylesheet href="style.css" type="text/css">
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</head>
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<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
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<table border=0 width=100%>
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<tr>
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<td><p class=tiny>libogg documentation</p></td>
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<td align=right><p class=tiny>libogg release 1.0 - 20000615</p></td>
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</tr>
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</table>
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<h1>ogg_sync_pageout</h1>
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<p><i>declared in "ogg/ogg.h";</i></p>
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<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>.
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<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.
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<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.
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<br><br>
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<table border=0 color=black cellspacing=0 cellpadding=7>
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<tr bgcolor=#cccccc>
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<td>
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<pre><b>
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int ogg_sync_pageout(<a href="ogg_sync_state.html">ogg_sync_state</a> *oy, <a href="ogg_page.html">ogg_page</a> *og);
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</b></pre>
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</td>
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</tr>
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</table>
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<h3>Parameters</h3>
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<dl>
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<dt><i>oy</i></dt>
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<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>
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<dt><i>og</i></dt>
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<dd>Pointer to page struct filled by this function.
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</dl>
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<h3>Return Values</h3>
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<blockquote>
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<li>-1 if we were not properly synced and had to skip some bytes.</li>
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<li>
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0 if we need more data to verify a page.</li>
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<li>
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1 if we have a page.</li>
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</blockquote>
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<p>
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<h3>Example Usage</h3>
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<pre>
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if (ogg_sync_pageout(&oy, &og) != 1) {
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buffer = ogg_sync_buffer(&oy, 8192);
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bytes = fread(buffer, 1, 8192, stdin);
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ogg_sync_wrote(&oy, bytes);
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}
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</pre>
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<br><br>
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<hr noshade>
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<table border=0 width=100%>
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<tr valign=top>
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<td><p class=tiny>copyright © 2000 xiph.org</p></td>
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<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/vorbis/index.html">Ogg Vorbis</a><br><a href="mailto:team@xiph.org">team@xiph.org</a></p></td>
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</tr><tr>
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<td><p class=tiny>libogg documentation</p></td>
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<td align=right><p class=tiny>libogg release 1.0 - 20000615</p></td>
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</tr>
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</table>
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</body>
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</html>
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