CODEC(3T)	  Image	Format Library C++ Reference Manual	     CODEC(3T)

NAME    [Toc]    [Back]

     TIFFFindCODEC, TIFFRegisterCODEC, TIFFUnRegisterCODEC - codec-related
     utility routines

SYNOPSIS    [Toc]    [Back]

     #include <tiffio.h>
     const TIFFCodec* TIFFFindCODEC(uint16 scheme);
     TIFFCodec*	TIFFRegisterCODEC(uint16 scheme, const char* method,
     TIFFInitMethod init);
     void TIFFUnRegisterCODEC(TIFFCodec* codec);

DESCRIPTION    [Toc]    [Back]

     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.

DIAGNOSTICS    [Toc]    [Back]

     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    [Toc]    [Back]

     libtiff(3T)


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