| | 1 | <!-- Creator : groff version 1.18.1 --> |
| | 2 | <!-- CreationDate: Sat Feb 24 18:37:16 2007 --> |
| | 3 | <html> |
| | 4 | <head> |
| | 5 | <meta name="generator" content="groff -Thtml, see www.gnu.org"> |
| | 6 | <meta name="Content-Style" content="text/css"> |
| | 7 | <title>CODEC</title> |
| | 8 | </head> |
| | 9 | <body> |
| | 10 | |
| | 11 | <h1 align=center>CODEC</h1> |
| | 12 | <a href="#NAME">NAME</a><br> |
| | 13 | <a href="#SYNOPSIS">SYNOPSIS</a><br> |
| | 14 | <a href="#DESCRIPTION">DESCRIPTION</a><br> |
| | 15 | <a href="#DIAGNOSTICS">DIAGNOSTICS</a><br> |
| | 16 | <a href="#SEE ALSO">SEE ALSO</a><br> |
| | 17 | |
| | 18 | <hr> |
| | 19 | <a name="NAME"></a> |
| | 20 | <h2>NAME</h2> |
| | 21 | <!-- INDENTATION --> |
| | 22 | <table width="100%" border=0 rules="none" frame="void" |
| | 23 | cols="2" cellspacing="0" cellpadding="0"> |
| | 24 | <tr valign="top" align="left"> |
| | 25 | <td width="8%"></td> |
| | 26 | <td width="91%"> |
| | 27 | <p>TIFFFindCODEC, TIFFRegisterCODEC, TIFFUnRegisterCODEC, |
| | 28 | TIFFIsCODECConfigured − codec-related utility |
| | 29 | routines</p> |
| | 30 | </td> |
| | 31 | </table> |
| | 32 | <a name="SYNOPSIS"></a> |
| | 33 | <h2>SYNOPSIS</h2> |
| | 34 | <!-- INDENTATION --> |
| | 35 | <table width="100%" border=0 rules="none" frame="void" |
| | 36 | cols="2" cellspacing="0" cellpadding="0"> |
| | 37 | <tr valign="top" align="left"> |
| | 38 | <td width="8%"></td> |
| | 39 | <td width="91%"> |
| | 40 | <p><b>#include <tiffio.h></b></p> |
| | 41 | <!-- INDENTATION --> |
| | 42 | <p><b>const TIFFCodec* TIFFFindCODEC(uint16</b> |
| | 43 | <i>scheme</i><b>);<br> |
| | 44 | TIFFCodec* TIFFRegisterCODEC(uint16</b> <i>scheme</i><b>, |
| | 45 | const char *</b><i>method</i><b>, TIFFInitMethod</b> |
| | 46 | <i>init</i><b>);<br> |
| | 47 | void TIFFUnRegisterCODEC(TIFFCodec |
| | 48 | *</b><i>codec</i><b>);<br> |
| | 49 | int TIFFIsCODECConfigured(uint16</b> |
| | 50 | <i>scheme</i><b>);</b></p> |
| | 51 | </td> |
| | 52 | </table> |
| | 53 | <a name="DESCRIPTION"></a> |
| | 54 | <h2>DESCRIPTION</h2> |
| | 55 | <!-- INDENTATION --> |
| | 56 | <table width="100%" border=0 rules="none" frame="void" |
| | 57 | cols="2" cellspacing="0" cellpadding="0"> |
| | 58 | <tr valign="top" align="left"> |
| | 59 | <td width="8%"></td> |
| | 60 | <td width="91%"> |
| | 61 | <p><i>libtiff</i> supports a variety of compression schemes |
| | 62 | implemented by software <i>codecs</i>. Each codec adheres to |
| | 63 | a modular interface that provides for the decoding and |
| | 64 | encoding of image data; as well as some other methods for |
| | 65 | initialization, setup, cleanup, and the control of default |
| | 66 | strip and tile sizes. Codecs are identified by the |
| | 67 | associated value of the <small>TIFF</small> |
| | 68 | <i>Compression</i> tag; e.g. 5 for <small>LZW</small> |
| | 69 | compression.</p> |
| | 70 | <!-- INDENTATION --> |
| | 71 | <p>The <i>TIFFRegisterCODEC</i> routine can be used to |
| | 72 | augment or override the set of codecs available to an |
| | 73 | application. If the specified <i>scheme</i> already has a |
| | 74 | registered codec then it is <i>overridden</i> and any images |
| | 75 | with data encoded with this compression scheme will be |
| | 76 | decoded using the supplied coded.</p> |
| | 77 | <!-- INDENTATION --> |
| | 78 | <p><i>TIFFIsCODECConfigured</i> returns 1 if the codec is |
| | 79 | configured and working. Otherwise 0 will be returned.</p> |
| | 80 | </td> |
| | 81 | </table> |
| | 82 | <a name="DIAGNOSTICS"></a> |
| | 83 | <h2>DIAGNOSTICS</h2> |
| | 84 | <!-- INDENTATION --> |
| | 85 | <table width="100%" border=0 rules="none" frame="void" |
| | 86 | cols="2" cellspacing="0" cellpadding="0"> |
| | 87 | <tr valign="top" align="left"> |
| | 88 | <td width="8%"></td> |
| | 89 | <td width="91%"> |
| | 90 | <p><b>No space to register compression scheme %s</b>. |
| | 91 | <i>TIFFRegisterCODEC</i> was unable to allocate memory for |
| | 92 | the data structures needed to register a codec.</p> |
| | 93 | <!-- INDENTATION --> |
| | 94 | <p><b>Cannot remove compression scheme %s; not |
| | 95 | registered</b>. <i>TIFFUnRegisterCODEC</i> did not locate |
| | 96 | the specified codec in the table of registered compression |
| | 97 | schemes.</p> |
| | 98 | </td> |
| | 99 | </table> |
| | 100 | <a name="SEE ALSO"></a> |
| | 101 | <h2>SEE ALSO</h2> |
| | 102 | <!-- INDENTATION --> |
| | 103 | <table width="100%" border=0 rules="none" frame="void" |
| | 104 | cols="2" cellspacing="0" cellpadding="0"> |
| | 105 | <tr valign="top" align="left"> |
| | 106 | <td width="8%"></td> |
| | 107 | <td width="91%"> |
| | 108 | <p><b>libtiff</b>(3TIFF)</p> |
| | 109 | <!-- INDENTATION --> |
| | 110 | <p>Libtiff library home page: |
| | 111 | <b>http://www.remotesensing.org/libtiff/</b></p> |
| | 112 | </td> |
| | 113 | </table> |
| | 114 | <hr> |
| | 115 | </body> |
| | 116 | </html> |
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