---
name: "TIFFcodec"
section: "3tiff"
platform: "linux"
package: "libtiff-dev"
version: "4.7.0-3+deb13u3"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/TIFFcodec/3tiff"
---

# TIFFcodec(3tiff)

codec-related utility routines

## 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

1988-2022, LibTIFF contributors