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<html>
<head>
<title>libogg - Encoding</title>
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<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
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<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.3.4 - 20190830</p></td>
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</table>
<h1>Encoding</h1>
<p>Libogg contains a set of functions used in the encoding process.
<p>
All the <b>libogg</b> specific functions are declared in "ogg/ogg.h".
<p>
<p>When encoding, the encoding engine will output raw packets which must be placed into an Ogg bitstream.
<p>Raw packets are inserted into the stream, and an <a href="ogg_page.html">ogg_page</a> is output when enough packets have been written to create a full page. The pages output are pointers to buffered packet segments, and can then be written out and saved as an ogg stream.
<p>There are a couple of basic steps:
<ul>
<li>Use the encoding engine to produce a raw packet of data.
<li>Call <a href="ogg_stream_packetin.html">ogg_stream_packetin</a> to submit a raw packet to the stream.
<li>Use <a href="ogg_stream_pageout.html">ogg_stream_pageout</a> to output a page, if enough data has been submitted. Otherwise, continue submitting data.
</ul>
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<td><b>function</b></td>
<td><b>purpose</b></td>
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<td><a href="ogg_stream_packetin.html">ogg_stream_packetin</a></td>
<td>Submits a raw packet to the streaming layer, so that it can be formed into a page.</td>
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<tr valign=top>
<td><a href="ogg_stream_iovecin.html">ogg_stream_iovecin</a></td>
<td>iovec version of ogg_stream_packetin() above.</td>
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<td><a href="ogg_stream_pageout.html">ogg_stream_pageout</a></td>
<td>Outputs a completed page if the stream contains enough packets to form a full page.<td>
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<td><a href="ogg_stream_pageout_fill.html">ogg_stream_pageout_fill</a></td>
<td>Similar to ogg_stream_pageout(), but specifies a page spill threshold in bytes.
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<td><a href="ogg_stream_flush.html">ogg_stream_flush</a></td>
<td>Forces any remaining packets in the stream to be returned as a page of any size.<td>
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<td><a href="ogg_stream_flush_fill.html">ogg_stream_flush_fill</a></td>
<td>Similar to ogg_stream_flush(), but specifies a page spill threshold in bytes.<td>
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<br><br>
<hr noshade>
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<td><p class=tiny>copyright © 2000-2019 Xiph.Org Foundation</p></td>
<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</a></p></td>
</tr><tr>
<td><p class=tiny>libogg documentation</p></td>
<td align=right><p class=tiny>libogg release 1.3.4 - 20190830</p></td>
</tr>
</table>
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