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Tremor is extremly similar to libogg but only uses integers (and doesn't provide an encoder). The playing problem with libvorbis was probably a float-precision related issue. No need for make build-all.
90 lines
3.1 KiB
HTML
90 lines
3.1 KiB
HTML
<html>
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<head>
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<title>Tremor - function - ov_test_callbacks</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>Tremor documentation</p></td>
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<td align=right><p class=tiny>Tremor version 1.0 - 20020403</p></td>
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</tr>
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</table>
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<h1>ov_test_callbacks</h1>
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<p><i>declared in "ivorbisfile.h";</i></p>
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<p>This is an alternative function used to open and test an OggVorbis_File
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structure when using a data source other than a file. It allows you to specify custom file manipulation routines and sets up all the related decoding structures.
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<p>Once this has been called, the same <tt>OggVorbis_File</tt>
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struct should be passed to all the libvorbisidec functions.
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<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 ov_test_callbacks(void *datasource, <a href="OggVorbis_File.html">OggVorbis_File</a> *vf, char *initial, long ibytes, <a href="ov_callbacks.html">ov_callbacks</a> callbacks);
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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>f</i></dt>
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<dd>File pointer to an already opened file
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or pipe (it need not be seekable--though this obviously restricts what
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can be done with the bitstream).</dd>
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<dt><i>vf</i></dt>
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<dd>A pointer to the OggVorbis_File structure--this is used for ALL the externally visible libvorbisidec
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functions. Once this has been called, the same <tt>OggVorbis_File</tt>
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struct should be passed to all the libvorbisidec functions.</dd>
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<dt><i>initial</i></dt>
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<dd>Typically set to NULL. This parameter is useful if some data has already been
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read from the file and the stream is not seekable. It is used in conjunction with <tt>ibytes</tt>. In this case, <tt>initial</tt>
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should be a pointer to a buffer containing the data read.</dd>
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<dt><i>ibytes</i></dt>
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<dd>Typically set to 0. This parameter is useful if some data has already been
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read from the file and the stream is not seekable. In this case, <tt>ibytes</tt>
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should contain the length (in bytes) of the buffer. Used together with <tt>initial</tt>.</dd>
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<dt><i>callbacks</i></dt>
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<dd>Pointer to a completed <a href="ov_callbacks.html">ov_callbacks</a> struct which indicates desired custom file manipulation routines.</dd>
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</dl>
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<h3>Return Values</h3>
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<blockquote>
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<li>0 for success</li>
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<li>less than zero for failure:</li>
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<ul>
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<li>OV_EREAD - A read from media returned an error.</li>
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<li>OV_ENOTVORBIS - Bitstream is not Vorbis data.</li>
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<li>OV_EVERSION - Vorbis version mismatch.</li>
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<li>OV_EBADHEADER - Invalid Vorbis bitstream header.</li>
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<li>OV_EFAULT - Internal logic fault; indicates a bug or heap/stack corruption.</li>
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</ul>
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</blockquote>
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<p>
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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 © 2002 Xiph.org</p></td>
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<td align=right><p class=tiny><a href="http://www.xiph.org/ogg/vorbis/">Ogg Vorbis</a></p></td>
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</tr><tr>
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<td><p class=tiny>Tremor documentation</p></td>
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<td align=right><p class=tiny>Tremor version 1.0 - 20020403</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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