CODEC(3TIFF) Image Format Library C++ Reference Manual CODEC(3TIFF)NAME
TIFFFindCODEC, TIFFRegisterCODEC, TIFFUnRegisterCODEC,
TIFFIsCODECConfigured - codec-related utility routines
SYNOPSIS
#include <tiffio.h>
const TIFFCodec* TIFFFindCODEC(uint16 scheme);
TIFFCodec* TIFFRegisterCODEC(uint16 scheme, const char *method,
TIFFInitMethod init
void TIFFUnRegisterCODEC(TIFFCodec *codec);
int TIFFIsCODECConfigured(uint16 scheme);
DESCRIPTION
libtiff supports a variety of compression schemes implemented by software
codecs. 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
Compression tag; e.g. 5 for LZW compression.
The TIFFRegisterCODEC routine can be used to augment or override the set
of codecs available to an application. If the specified scheme already
has a registered codec then it is overridden and any images with data
encoded with this compression scheme will be decoded using the supplied
coded.
TIFFIsCODECConfigured returns 1 if the codec is configured and working.
Otherwise 0 will be returned.
DIAGNOSTICS
No space to register compression scheme %s. TIFFRegisterCODEC was unable
to allocate memory for the data structures needed to register a codec.
Cannot remove compression scheme %s; not registered. TIFFUnRegisterCODEC
did not locate the specified codec in the table of registered compression
schemes.
SEE ALSOlibtiff(3TIFF)
Libtiff library home page: http://www.remotesensing.org/libtiff/
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