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authorAki <please@ignore.pl>2021-09-29 22:52:15 +0200
committerAki <please@ignore.pl>2021-09-29 22:52:15 +0200
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+<html>
+
+<head>
+<title>libogg - datatype - ogg_stream_state</title>
+<link rel=stylesheet href="style.css" type="text/css">
+</head>
+
+<body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff">
+<table border=0 width=100%>
+<tr>
+<td><p class=tiny>libogg documentation</p></td>
+<td align=right><p class=tiny>libogg release 1.3.2 - 20140527</p></td>
+</tr>
+</table>
+
+<h1>ogg_stream_state</h1>
+
+<p><i>declared in "ogg/ogg.h"</i></p>
+
+<p>
+The ogg_stream_state struct tracks the current encode/decode state of the current logical bitstream.
+<p>
+
+<table border=0 width=100% color=black cellspacing=0 cellpadding=7>
+<tr bgcolor=#cccccc>
+ <td>
+<pre><b>
+typedef struct {
+ unsigned char *body_data; /* bytes from packet bodies */
+ long body_storage; /* storage elements allocated */
+ long body_fill; /* elements stored; fill mark */
+ long body_returned; /* elements of fill returned */
+
+
+ int *lacing_vals; /* The values that will go to the segment table */
+ ogg_int64_t *granule_vals; /* granulepos values for headers. Not compact
+ this way, but it is simple coupled to the
+ lacing fifo */
+ long lacing_storage;
+ long lacing_fill;
+ long lacing_packet;
+ long lacing_returned;
+
+ unsigned char header[282]; /* working space for header encode */
+ int header_fill;
+
+ int e_o_s; /* set when we have buffered the last packet in the
+ logical bitstream */
+ int b_o_s; /* set after we've written the initial page
+ of a logical bitstream */
+ long serialno;
+ int pageno;
+ ogg_int64_t packetno; /* sequence number for decode; the framing
+ knows where there's a hole in the data,
+ but we need coupling so that the codec
+ (which is in a seperate abstraction
+ layer) also knows about the gap */
+ ogg_int64_t granulepos;
+
+} ogg_stream_state;
+</b></pre>
+ </td>
+</tr>
+</table>
+
+<h3>Relevant Struct Members</h3>
+<dl>
+<dt><i>body_data</i></dt>
+<dd>Pointer to data from packet bodies.</dd>
+<dt><i>body_storage</i></dt>
+<dd>Storage allocated for bodies in bytes (filled or unfilled).</dd>
+<dt><i>body_fill</i></dt>
+<dd>Amount of storage filled with stored packet bodies.</dd>
+<dt><i>body_returned</i></dt>
+<dd>Number of elements returned from storage.</dd>
+<dt><i>lacing_vals</i></dt>
+<dd>String of lacing values for the packet segments within the current page. Each value is a byte, indicating packet segment length.</dd>
+<dt><i>granule_vals</i></dt>
+<dd>Pointer to the lacing values for the packet segments within the current page.</dd>
+<dt><i>lacing_storage</i></dt>
+<dd>Total amount of storage (in bytes) allocated for storing lacing values.</dd>
+<dt><i>lacing_fill</i></dt>
+<dd>Fill marker for the current vs. total allocated storage of lacing values for the page.</dd>
+<dt><i>lacing_packet</i></dt>
+<dd>Lacing value for current packet segment.</dd>
+<dt><i>lacing_returned</i></dt>
+<dd>Number of lacing values returned from lacing_storage.</dd>
+<dt><i>header</i></dt>
+<dd>Temporary storage for page header during encode process, while the header is being created.</dd>
+<dt><i>header_fill</i></dt>
+<dd>Fill marker for header storage allocation. Used during the header creation process.</dd>
+<dt><i>e_o_s</i></dt>
+<dd>Marker set when the last packet of the logical bitstream has been buffered.</dd>
+<dt><i>b_o_s</i></dt>
+<dd>Marker set after we have written the first page in the logical bitstream.</dd>
+<dt><i>serialno</i></dt>
+<dd>Serial number of this logical bitstream.</dd>
+<dt><i>pageno</i></dt>
+<dd>Number of the current page within the stream.</dd>
+<dt><i>packetno</i></dt>
+<dd>Number of the current packet.</dd>
+<dt><i>granulepos</i></dt>
+<dd>Exact position of decoding/encoding process.</dd>
+</dl>
+
+
+<br><br>
+<hr noshade>
+<table border=0 width=100%>
+<tr valign=top>
+<td><p class=tiny>copyright &copy; 2000-2014 Xiph.Org</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 1.3.2 - 20140527</p></td>
+</tr>
+</table>
+
+</body>
+
+</html>