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<title>CODEC</title>
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<h1 align="center">CODEC</h1>
<a href="#NAME">NAME</a><br>
<a href="#SYNOPSIS">SYNOPSIS</a><br>
<a href="#DESCRIPTION">DESCRIPTION</a><br>
<a href="#DIAGNOSTICS">DIAGNOSTICS</a><br>
<a href="#SEE ALSO">SEE ALSO</a><br>
<hr>
<h2>NAME
<a name="NAME"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em">TIFFFindCODEC,
TIFFRegisterCODEC, TIFFUnRegisterCODEC,
TIFFIsCODECConfigured − codec-related utility
routines</p>
<h2>SYNOPSIS
<a name="SYNOPSIS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em"><b>#include
<tiffio.h></b></p>
<p style="margin-left:11%; margin-top: 1em"><b>const
TIFFCodec* TIFFFindCODEC(uint16_t</b> <i>scheme</i><b>);
<br>
TIFFCodec* TIFFRegisterCODEC(uint16_t</b> <i>scheme</i><b>,
const char *</b><i>method</i><b>, TIFFInitMethod</b>
<i>init</i><b>); <br>
void TIFFUnRegisterCODEC(TIFFCodec *</b><i>codec</i><b>);
<br>
int TIFFIsCODECConfigured(uint16_t</b>
<i>scheme</i><b>);</b></p>
<h2>DESCRIPTION
<a name="DESCRIPTION"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em"><b><i>libtiff</i></b>
supports a variety of compression schemes implemented by
software <i>codecs</i>. Each codec adheres to a modular
interface that provides for the decoding and encoding of
image data; as well as some other methods for
initialization, setup, cleanup, and the control of default
strip and tile sizes. Codecs are identified by the
associated value of the <small>TIFF</small>
<i>Compression</i> tag; e.g. 5 for <small>LZW</small>
compression.</p>
<p style="margin-left:11%; margin-top: 1em">The
<i>TIFFRegisterCODEC</i> routine can be used to augment or
override the set of codecs available to an application. If
the specified <i>scheme</i> already has a registered codec
then it is <i>overridden</i> and any images with data
encoded with this compression scheme will be decoded using
the supplied codec.</p>
<p style="margin-left:11%; margin-top: 1em"><i>TIFFIsCODECConfigured</i>
returns 1 if the codec is configured and working. Otherwise
0 will be returned.</p>
<h2>DIAGNOSTICS
<a name="DIAGNOSTICS"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em"><b>No space to
register compression scheme %s</b>. <i>TIFFRegisterCODEC</i>
was unable to allocate memory for the data structures needed
to register a codec.</p>
<p style="margin-left:11%; margin-top: 1em"><b>Cannot
remove compression scheme %s; not registered</b>.
<i>TIFFUnRegisterCODEC</i> did not locate the specified
codec in the table of registered compression schemes.</p>
<h2>SEE ALSO
<a name="SEE ALSO"></a>
</h2>
<p style="margin-left:11%; margin-top: 1em"><b>libtiff</b>(3TIFF)</p>
<p style="margin-left:11%; margin-top: 1em">Libtiff library
home page: <b>http://www.simplesystems.org/libtiff/</b></p>
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