2002-10-07 09:47:36 -04:00
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<meta name="generator" content="groff -Thtml, see www.gnu.org">
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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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2003-11-27 10:07:01 -05:00
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<!-- Creator : groff version 1.17.2 -->
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<!-- CreationDate: Thu Nov 27 17:57:58 2003 -->
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2002-10-07 09:47:36 -04:00
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<a name="NAME"></a>
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<h2>NAME</h2>
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<table width="100%" border=0 rules="none" frame="void"
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cols="2" cellspacing="0" cellpadding="0">
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<tr valign="top" align="left">
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2003-11-27 10:07:01 -05:00
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<td width="10%"></td><td width="90%">
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TIFFFindCODEC, TIFFRegisterCODEC, TIFFUnRegisterCODEC - codec-related utility routines</td></table>
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<a name="SYNOPSIS"></a>
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<h2>SYNOPSIS</h2>
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<table width="100%" border=0 rules="none" frame="void"
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cols="2" cellspacing="0" cellpadding="0">
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<td width="10%"></td><td width="90%">
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<b>#include <tiffio.h><br>
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const TIFFCodec* TIFFFindCODEC(uint16 scheme);<br>
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TIFFCodec* TIFFRegisterCODEC(uint16 scheme, const char*
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method, TIFFInitMethod init);<br>
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void TIFFUnRegisterCODEC(TIFFCodec* codec);<br>
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int TIFFIsCODECConfigured(uint16 scheme);</b></td></table>
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<a name="DESCRIPTION"></a>
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<h2>DESCRIPTION</h2>
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<table width="100%" border=0 rules="none" frame="void"
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cols="2" cellspacing="0" cellpadding="0">
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<tr valign="top" align="left">
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<td width="10%"></td><td width="90%">
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<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.</td></table>
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<table width="100%" border=0 rules="none" frame="void"
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cols="2" cellspacing="0" cellpadding="0">
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<tr valign="top" align="left">
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<td width="10%"></td><td width="90%">
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The <i>TIFFRegisterCODEC</i> routine can be used to augment
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or override the set of codecs available to an application.
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If the specified <i>scheme</i> already has a registered
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codec then it is <i>overridden</i> and any images with data
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encoded with this compression scheme will be decoded using
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the supplied coded.</td></table>
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<table width="100%" border=0 rules="none" frame="void"
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cols="2" cellspacing="0" cellpadding="0">
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<tr valign="top" align="left">
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<td width="10%"></td><td width="90%">
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<i>TIFFIsCODECConfigured</i> returns 1 if the codec is
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configured and working. Otherwise 0 will be
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returned.</td></table>
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<a name="DIAGNOSTICS"></a>
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<h2>DIAGNOSTICS</h2>
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<table width="100%" border=0 rules="none" frame="void"
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cols="2" cellspacing="0" cellpadding="0">
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<tr valign="top" align="left">
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<td width="10%"></td><td width="90%">
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<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.</td></table>
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<table width="100%" border=0 rules="none" frame="void"
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cols="2" cellspacing="0" cellpadding="0">
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<tr valign="top" align="left">
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<td width="10%"></td><td width="90%">
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<b>Cannot remove compression scheme %s; not registered</b>.
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<i>TIFFUnRegisterCODEC</i> did not locate the specified
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codec in the table of registered compression
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schemes.</td></table>
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2002-10-07 09:47:36 -04:00
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<a name="SEE ALSO"></a>
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<h2>SEE ALSO</h2>
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2003-11-27 10:07:01 -05:00
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<table width="100%" border=0 rules="none" frame="void"
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2002-10-07 09:47:36 -04:00
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cols="2" cellspacing="0" cellpadding="0">
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<tr valign="top" align="left">
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2003-11-27 10:07:01 -05:00
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<td width="10%"></td><td width="90%">
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<i>libtiff</i>(3T)</td></table>
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2002-10-07 09:47:36 -04:00
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