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.TH "TIFFCODEC" "3tiff" "Jan 27, 2024" "4.5" "LibTIFF"
.SH NAME
TIFFcodec \- codec-related utility routines
.SH SYNOPSIS
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.EX
#include <tiffio.h>
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.B const TIFFCodec *TIFFFindCODEC(uint16_t scheme) 
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.B TIFFCodec *TIFFRegisterCODEC(uint16_t scheme, const char *method, TIFFInitMethod init) 
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.B void TIFFUnRegisterCODEC(TIFFCodec *codec) 
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.B int TIFFIsCODECConfigured(uint16_t scheme) 
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.B TIFFCodec *TIFFGetConfiguredCODECs(uint16_t scheme) 
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.B int TIFFSetCompressionScheme(TIFF *tif, int scheme) 
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.SH DESCRIPTION
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\fBlibtiff\fP supports a variety of compression schemes implemented
by software \fIcodecs\fP\&. 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 TIFF \fBCompression\fP tag; e.g. 5 for LZW compression.
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\fI\%TIFFFindCODEC()\fP  ??????
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\fI\%TIFFUnRegisterCODEC()\fP ?????
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The \fI\%TIFFRegisterCODEC()\fP routine can be used to augment or
override the set of codecs available to an application.  If the
specified \fIscheme\fP already has a registered codec then it is
\fIoverridden\fP and any images with data encoded with this compression
scheme will be decoded using the supplied codec.
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\fI\%TIFFIsCODECConfigured()\fP returns 1 if the codec is configured
and working. Otherwise 0 will be returned.
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\fI\%TIFFGetConfiguredCODECs()\fP gets list of configured codecs,
both built\-in and registered by user. Function returns array of
\fBTIFFCodec\fP records (the last record should be NULL) or NULL
if function failed. Caller is responsible to free this structure.
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\fI\%TIFFSetCompressionScheme()\fP  ????
.SH DIAGNOSTICS
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\fBNo space to register compression scheme %s\fP:
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\fI\%TIFFRegisterCODEC()\fP was unable to allocate memory for the
data structures needed to register a codec.
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\fBCannot remove compression scheme %s; not registered\fP:
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\fI\%TIFFUnRegisterCODEC()\fP did not locate the specified codec in
the table of registered compression schemes.
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.SH SEE ALSO
.sp
\fI\%libtiff\fP (3tiff),
.SH AUTHOR
LibTIFF contributors
.SH COPYRIGHT
1988-2024, LibTIFF contributors
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