NAME

       TIFFcodec - codec-related utility routines

SYNOPSIS

          #include <tiffio.h>

       const TIFFCodec *TIFFFindCODEC(uint16_t scheme)

       TIFFCodec *TIFFRegisterCODEC(uint16_t scheme, const char *method, TIFFInitMethod init)

       void TIFFUnRegisterCODEC(TIFFCodec *codec)

       int TIFFIsCODECConfigured(uint16_t scheme)

       TIFFCodec *TIFFGetConfiguredCODECs(uint16_t scheme)

       int TIFFSetCompressionScheme(TIFF *tif, int 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.

       TIFFFindCODEC()  ??????

       TIFFUnRegisterCODEC() ?????

       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.

       TIFFGetConfiguredCODECs()  gets list of configured codecs, both built-in and registered by
       user. Function returns array of TIFFCodec records (the last record should be NULL) or NULL
       if function failed. Caller is responsible to free this structure.

       TIFFSetCompressionScheme()  ????

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),

AUTHOR

       LibTIFF contributors

COPYRIGHT

       1988-2023, LibTIFF contributors