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- <title>CODEC</title>
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- <h1 align=center>CODEC</h1>
- <a href="#NAME">NAME</a><br>
- <a href="#SYNOPSIS">SYNOPSIS</a><br>
- <a href="#DESCRIPTION">DESCRIPTION</a><br>
- <a href="#DIAGNOSTICS">DIAGNOSTICS</a><br>
- <a href="#SEE ALSO">SEE ALSO</a><br>
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- <a name="NAME"></a>
- <h2>NAME</h2>
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- <p>TIFFFindCODEC, TIFFRegisterCODEC, TIFFUnRegisterCODEC,
- TIFFIsCODECConfigured − codec-related utility
- routines</p>
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- </table>
- <a name="SYNOPSIS"></a>
- <h2>SYNOPSIS</h2>
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- <p><b>#include <tiffio.h></b></p>
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- <p><b>const TIFFCodec* TIFFFindCODEC(uint16_t</b>
- <i>scheme</i><b>);<br>
- TIFFCodec* TIFFRegisterCODEC(uint16_t</b> <i>scheme</i><b>,
- const char *</b><i>method</i><b>, TIFFInitMethod</b>
- <i>init</i><b>);<br>
- void TIFFUnRegisterCODEC(TIFFCodec
- *</b><i>codec</i><b>);<br>
- int TIFFIsCODECConfigured(uint16_t</b>
- <i>scheme</i><b>);</b></p>
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- <a name="DESCRIPTION"></a>
- <h2>DESCRIPTION</h2>
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- <p><i>libtiff</i> supports a variety of compression schemes
- implemented by software <i>codecs</i>. 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 <small>TIFF</small>
- <i>Compression</i> tag; e.g. 5 for <small>LZW</small>
- compression.</p>
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- <p>The <i>TIFFRegisterCODEC</i> routine can be used to
- augment or override the set of codecs available to an
- application. If the specified <i>scheme</i> already has a
- registered codec then it is <i>overridden</i> and any images
- with data encoded with this compression scheme will be
- decoded using the supplied coded.</p>
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- <p><i>TIFFIsCODECConfigured</i> returns 1 if the codec is
- configured and working. Otherwise 0 will be returned.</p>
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- <a name="DIAGNOSTICS"></a>
- <h2>DIAGNOSTICS</h2>
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- <p><b>No space to register compression scheme %s</b>.
- <i>TIFFRegisterCODEC</i> was unable to allocate memory for
- the data structures needed to register a codec.</p>
- <!-- INDENTATION -->
- <p><b>Cannot remove compression scheme %s; not
- registered</b>. <i>TIFFUnRegisterCODEC</i> did not locate
- the specified codec in the table of registered compression
- schemes.</p>
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- </table>
- <a name="SEE ALSO"></a>
- <h2>SEE ALSO</h2>
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- <p><b>libtiff</b>(3TIFF)</p>
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- <p>Libtiff library home page:
- <b>http://www.simplesystems.org/libtiff/</b></p>
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