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libsdl2_mixer/external/libogg-1.3.2/doc/libogg/ogg_stream_state.html
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libsdl2_mixer/external/libogg-1.3.2/doc/libogg/ogg_stream_state.html
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<html>
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<head>
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<title>libogg - datatype - ogg_stream_state</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 1.3.2 - 20140527</p></td>
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</tr>
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</table>
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<h1>ogg_stream_state</h1>
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<p><i>declared in "ogg/ogg.h"</i></p>
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<p>
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The ogg_stream_state struct tracks the current encode/decode state of the current logical bitstream.
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<p>
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<table border=0 width=100% 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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typedef struct {
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unsigned char *body_data; /* bytes from packet bodies */
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long body_storage; /* storage elements allocated */
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long body_fill; /* elements stored; fill mark */
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long body_returned; /* elements of fill returned */
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int *lacing_vals; /* The values that will go to the segment table */
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ogg_int64_t *granule_vals; /* granulepos values for headers. Not compact
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this way, but it is simple coupled to the
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lacing fifo */
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long lacing_storage;
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long lacing_fill;
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long lacing_packet;
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long lacing_returned;
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unsigned char header[282]; /* working space for header encode */
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int header_fill;
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int e_o_s; /* set when we have buffered the last packet in the
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logical bitstream */
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int b_o_s; /* set after we've written the initial page
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of a logical bitstream */
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long serialno;
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int pageno;
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ogg_int64_t packetno; /* sequence number for decode; the framing
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knows where there's a hole in the data,
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but we need coupling so that the codec
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(which is in a seperate abstraction
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layer) also knows about the gap */
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ogg_int64_t granulepos;
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} ogg_stream_state;
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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>Relevant Struct Members</h3>
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<dl>
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<dt><i>body_data</i></dt>
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<dd>Pointer to data from packet bodies.</dd>
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<dt><i>body_storage</i></dt>
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<dd>Storage allocated for bodies in bytes (filled or unfilled).</dd>
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<dt><i>body_fill</i></dt>
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<dd>Amount of storage filled with stored packet bodies.</dd>
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<dt><i>body_returned</i></dt>
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<dd>Number of elements returned from storage.</dd>
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<dt><i>lacing_vals</i></dt>
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<dd>String of lacing values for the packet segments within the current page. Each value is a byte, indicating packet segment length.</dd>
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<dt><i>granule_vals</i></dt>
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<dd>Pointer to the lacing values for the packet segments within the current page.</dd>
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<dt><i>lacing_storage</i></dt>
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<dd>Total amount of storage (in bytes) allocated for storing lacing values.</dd>
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<dt><i>lacing_fill</i></dt>
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<dd>Fill marker for the current vs. total allocated storage of lacing values for the page.</dd>
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<dt><i>lacing_packet</i></dt>
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<dd>Lacing value for current packet segment.</dd>
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<dt><i>lacing_returned</i></dt>
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<dd>Number of lacing values returned from lacing_storage.</dd>
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<dt><i>header</i></dt>
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<dd>Temporary storage for page header during encode process, while the header is being created.</dd>
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<dt><i>header_fill</i></dt>
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<dd>Fill marker for header storage allocation. Used during the header creation process.</dd>
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<dt><i>e_o_s</i></dt>
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<dd>Marker set when the last packet of the logical bitstream has been buffered.</dd>
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<dt><i>b_o_s</i></dt>
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<dd>Marker set after we have written the first page in the logical bitstream.</dd>
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<dt><i>serialno</i></dt>
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<dd>Serial number of this logical bitstream.</dd>
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<dt><i>pageno</i></dt>
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<dd>Number of the current page within the stream.</dd>
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<dt><i>packetno</i></dt>
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<dd>Number of the current packet.</dd>
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<dt><i>granulepos</i></dt>
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<dd>Exact position of decoding/encoding process.</dd>
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</dl>
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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 © 2000-2014 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 1.3.2 - 20140527</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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