Edit File: TIFFcodec.3tiff.html
<!-- Creator : groff version 1.18.1 --> <!-- CreationDate: Sat Feb 24 18:37:16 2007 --> <html> <head> <meta name="generator" content="groff -Thtml, see www.gnu.org"> <meta name="Content-Style" content="text/css"> <title>CODEC</title> </head> <body> <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> <hr> <a name="NAME"></a> <h2>NAME</h2> <!-- INDENTATION --> <table width="100%" border=0 rules="none" frame="void" cols="2" cellspacing="0" cellpadding="0"> <tr valign="top" align="left"> <td width="8%"></td> <td width="91%"> <p>TIFFFindCODEC, TIFFRegisterCODEC, TIFFUnRegisterCODEC, TIFFIsCODECConfigured − codec-related utility routines</p> </td> </table> <a name="SYNOPSIS"></a> <h2>SYNOPSIS</h2> <!-- INDENTATION --> <table width="100%" border=0 rules="none" frame="void" cols="2" cellspacing="0" cellpadding="0"> <tr valign="top" align="left"> <td width="8%"></td> <td width="91%"> <p><b>#include <tiffio.h></b></p> <!-- INDENTATION --> <p><b>const TIFFCodec* TIFFFindCODEC(uint16</b> <i>scheme</i><b>);<br> TIFFCodec* TIFFRegisterCODEC(uint16</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</b> <i>scheme</i><b>);</b></p> </td> </table> <a name="DESCRIPTION"></a> <h2>DESCRIPTION</h2> <!-- INDENTATION --> <table width="100%" border=0 rules="none" frame="void" cols="2" cellspacing="0" cellpadding="0"> <tr valign="top" align="left"> <td width="8%"></td> <td width="91%"> <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> <!-- INDENTATION --> <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> <!-- INDENTATION --> <p><i>TIFFIsCODECConfigured</i> returns 1 if the codec is configured and working. Otherwise 0 will be returned.</p> </td> </table> <a name="DIAGNOSTICS"></a> <h2>DIAGNOSTICS</h2> <!-- INDENTATION --> <table width="100%" border=0 rules="none" frame="void" cols="2" cellspacing="0" cellpadding="0"> <tr valign="top" align="left"> <td width="8%"></td> <td width="91%"> <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> </td> </table> <a name="SEE ALSO"></a> <h2>SEE ALSO</h2> <!-- INDENTATION --> <table width="100%" border=0 rules="none" frame="void" cols="2" cellspacing="0" cellpadding="0"> <tr valign="top" align="left"> <td width="8%"></td> <td width="91%"> <p><b>libtiff</b>(3TIFF)</p> <!-- INDENTATION --> <p>Libtiff library home page: <b>http://www.remotesensing.org/libtiff/</b></p> </td> </table> <hr> </body> </html>