00001 <html> 00002 00003 <head> 00004 <title>Vorbisfile - Base Data Structures</title> 00005 <link rel=stylesheet href="style.css" type="text/css"> 00006 </head> 00007 00008 <body bgcolor=white text=black link="#5555ff" alink="#5555ff" vlink="#5555ff"> 00009 <table border=0 width=100%> 00010 <tr> 00011 <td><p class=tiny>Vorbisfile documentation</p></td> 00012 <td align=right><p class=tiny>vorbisfile version 1.68 - 20030307</p></td> 00013 </tr> 00014 </table> 00015 00016 <h1>Base Data Structures</h1> 00017 <p>There are several data structures used to hold file and bitstream information during libvorbisfile decoding. These structures are declared in "vorbis/vorbisfile.h" and "vorbis/codec.h". 00018 <p> 00019 <p>When using libvorbisfile, it's not necessary to know about most of the contents of these data structures, but it may be helpful to understand what they contain. 00020 <br><br> 00021 00022 <table border=1 color=black width=50% cellspacing=0 cellpadding=7> 00023 <tr bgcolor=#cccccc> 00024 <td><b>datatype</b></td> 00025 <td><b>purpose</b></td> 00026 </tr> 00027 <tr valign=top> 00028 <td><a href="OggVorbis_File.html">OggVorbis_File</a></td> 00029 <td>This structure represents the basic file information. It contains 00030 a pointer to the physical file or bitstream and various information about that bitstream.</td> 00031 </tr> 00032 <tr valign=top> 00033 <td><a href="vorbis_comment.html">vorbis_comment</a></td> 00034 <td>This structure contains the file comments. It contains 00035 a pointer to unlimited user comments, information about the number of comments, and a vendor description.</td> 00036 </tr> 00037 <tr valign=top> 00038 <td><a href="vorbis_info.html">vorbis_info</a></td> 00039 <td>This structure contains encoder-related information about the bitstream. It includes encoder info, channel info, and bitrate limits.</td> 00040 </tr> 00041 <tr valign=top> 00042 <td><a href="ov_callbacks.html">ov_callbacks</a></td> 00043 <td>This structure contains pointers to the application-specified file manipulation routines set for use by <a href="ov_open_callbacks.html">ov_open_callbacks()</a>. See also the <a href="callbacks.html">provided document on using application-provided callbacks instead of stdio</a>.</td> 00044 </tr> 00045 </table> 00046 00047 <br><br> 00048 <hr noshade> 00049 <table border=0 width=100%> 00050 <tr valign=top> 00051 <td><p class=tiny>copyright © 2003 Xiph.org</p></td> 00052 <td align=right><p class=tiny><a href="http://www.xiph.org/ogg/vorbis/">Ogg Vorbis</a></p></td> 00053 </tr><tr> 00054 <td><p class=tiny>Vorbisfile documentation</p></td> 00055 <td align=right><p class=tiny>vorbisfile version 1.68 - 20030307</p></td> 00056 </tr> 00057 </table> 00058 00059 </body> 00060 00061 </html>