---
name: "TIFFcodec"
section: "3t"
platform: "linux"
package: "libtiff3g-dev"
version: "3.5.5-6.woody5"
release: "Debian 3.0 (Woody)"
platforms: ["linux"]
url: "https://new.carta.tech/TIFFcodec"
---

# TIFFcodec(3t)

codec-related utility routines

## NAME

TIFFFindCODEC, TIFFRegisterCODEC, TIFFUnRegisterCODEC - 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);**

## 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.

## 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*(3T)