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<!-- CreationDate: Mon Mar 13 18:03:08 2006 -->
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<title>CODEC</title>
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<h1 align=center>CODEC</h1>
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<a href="#NAME">NAME</a><br>
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<a href="#SYNOPSIS">SYNOPSIS</a><br>
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<a href="#DESCRIPTION">DESCRIPTION</a><br>
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<a href="#DIAGNOSTICS">DIAGNOSTICS</a><br>
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<a href="#SEE ALSO">SEE ALSO</a><br>
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<hr>
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<a name="NAME"></a>
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<h2>NAME</h2>
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<td width="8%"></td>
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<td width="91%">
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<p>TIFFFindCODEC, TIFFRegisterCODEC, TIFFUnRegisterCODEC,
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TIFFIsCODECConfigured − codec-related utility
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routines</p>
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</td>
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</table>
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<a name="SYNOPSIS"></a>
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<h2>SYNOPSIS</h2>
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<p><b>#include <tiffio.h></b></p>
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<p><b>const TIFFCodec* TIFFFindCODEC(uint16</b>
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<i>scheme</i><b>);<br>
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TIFFCodec* TIFFRegisterCODEC(uint16</b> <i>scheme</i><b>,
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const char *</b><i>method</i><b>, TIFFInitMethod</b>
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<i>init</i><b>);<br>
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void TIFFUnRegisterCODEC(TIFFCodec
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*</b><i>codec</i><b>);<br>
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int TIFFIsCODECConfigured(uint16</b>
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<i>scheme</i><b>);</b></p>
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</td>
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<a name="DESCRIPTION"></a>
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<h2>DESCRIPTION</h2>
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<td width="8%"></td>
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<td width="91%">
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<p><i>libtiff</i> supports a variety of compression schemes
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implemented by software <i>codecs</i>. Each codec adheres to
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a modular interface that provides for the decoding and
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encoding of image data; as well as some other methods for
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initialization, setup, cleanup, and the control of default
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strip and tile sizes. Codecs are identified by the
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associated value of the <small>TIFF</small>
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<i>Compression</i> tag; e.g. 5 for <small>LZW</small>
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compression.</p>
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<p>The <i>TIFFRegisterCODEC</i> routine can be used to
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augment or override the set of codecs available to an
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application. If the specified <i>scheme</i> already has a
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registered codec then it is <i>overridden</i> and any images
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with data encoded with this compression scheme will be
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decoded using the supplied coded.</p>
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<p><i>TIFFIsCODECConfigured</i> returns 1 if the codec is
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configured and working. Otherwise 0 will be returned.</p>
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</td>
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</table>
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<a name="DIAGNOSTICS"></a>
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<h2>DIAGNOSTICS</h2>
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<p><b>No space to register compression scheme %s</b>.
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<i>TIFFRegisterCODEC</i> was unable to allocate memory for
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the data structures needed to register a codec.</p>
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<p><b>Cannot remove compression scheme %s; not
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registered</b>. <i>TIFFUnRegisterCODEC</i> did not locate
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the specified codec in the table of registered compression
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schemes.</p>
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</td>
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</table>
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<a name="SEE ALSO"></a>
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<h2>SEE ALSO</h2>
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<td width="8%"></td>
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<td width="91%">
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<p><b>libtiff</b>(3TIFF)</p>
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<p>Libtiff library home page:
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<b>http://www.remotesensing.org/libtiff/</b></p>
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</td>
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</table>
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