TIFFcodec - Configured - codec-related utility routines
#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);
CODEC(3TIFF) CODEC(3TIFF)
NAME
TIFFFindCODEC, TIFFRegisterCODEC, TIFFUnRegisterCODEC, TIFFIsCODEC-
Configured - 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 soft-
ware 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 codec.
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. TIFFUnRegister-
CODEC did not locate the specified codec in the table of registered
compression schemes.
SEE ALSO
libtiff(3TIFF)
Libtiff library home page: http://www.simplesystems.org/libtiff/
libtiff October 29, 2004 CODEC(3TIFF)