86 lines
2.9 KiB
HTML
86 lines
2.9 KiB
HTML
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<html>
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<head>
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<title>libogg - function - ogg_stream_packetout</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 1.3.0 - 20110804</p></td>
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</tr>
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</table>
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<h1>ogg_stream_packetout</h1>
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<p><i>declared in "ogg/ogg.h";</i></p>
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<p>This function assembles a data packet for output to the codec
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decoding engine. The data has already been submitted to the
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<a href="ogg_stream_state.html">ogg_stream_state</a> and broken
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into segments. Each successive call returns the next complete packet
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built from those segments.</p>
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<p>In a typical decoding situation, this should be used after calling
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<a href="ogg_stream_pagein.html">ogg_stream_pagein()</a> to submit a
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page of data to the bitstream. If the function returns 0, more data is
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needed and another page should be submitted. A non-zero return value
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indicates successful return of a packet.</p>
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<p>The <i>op</i> is filled in with pointers to memory managed by
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the stream state and is only valid until the next call. The client
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must copy the packet data if a longer lifetime is required.</p>
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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_stream_packetout(ogg_stream_state *os,ogg_packet *op);
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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>os</i></dt>
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<dd>Pointer to a previously declared <a
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href="ogg_stream_state.html">ogg_stream_state</a> struct. Before this function is called, an <a href="ogg_page.html">ogg_page</a> should be submitted to the stream using <a href="ogg_stream_pagein.html">ogg_stream_pagein()</a>.</dd>
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<dt><i>op</i></dt>
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<dd>Pointer to the packet to be filled in with pointers to the new data.
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This will typically be submitted to a codec for decode after this
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function is called. The pointers are only valid until the next call
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on this stream state.</dd>
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</dl>
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<h3>Return Values</h3>
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<blockquote>
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<ul>
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<li>-1 if we are out of sync and there is a gap in the data. This is usually a recoverable error and subsequent calls to ogg_stream_packetout are likely to succeed. <i>op</i> has not been updated.</li>
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<li>0 if there is insufficient data available to complete a packet, or on unrecoverable internal error occurred. <i>op</i> has not been updated.
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<li>1 if a packet was assembled normally. <i>op</i> contains the next packet from the stream.</li>
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</ul>
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</blockquote>
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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 © 2000-2010 xiph.org</p></td>
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<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/">Ogg Container Format</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 1.3.0 - 20110804</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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