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 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.
TIFFUnRegisterCODEC did not locate the specified codec in the table of
registered compression schemes.
SEE ALSO¶
libtiff(3TIFF)
Libtiff library home page:
http://www.remotesensing.org/libtiff/
