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1 <!-- Creator : groff version 1.18.1 --> |
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2 <!-- CreationDate: Mon Mar 13 18:03:08 2006 --> |
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4 <head> |
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5 <meta name="generator" content="groff -Thtml, see www.gnu.org"> |
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7 <title>CODEC</title> |
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8 </head> |
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9 <body> |
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10 |
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11 <h1 align=center>CODEC</h1> |
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12 <a href="#NAME">NAME</a><br> |
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13 <a href="#SYNOPSIS">SYNOPSIS</a><br> |
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14 <a href="#DESCRIPTION">DESCRIPTION</a><br> |
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15 <a href="#DIAGNOSTICS">DIAGNOSTICS</a><br> |
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16 <a href="#SEE ALSO">SEE ALSO</a><br> |
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17 |
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18 <hr> |
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19 <a name="NAME"></a> |
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20 <h2>NAME</h2> |
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24 <tr valign="top" align="left"> |
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25 <td width="8%"></td> |
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26 <td width="91%"> |
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27 <p>TIFFFindCODEC, TIFFRegisterCODEC, TIFFUnRegisterCODEC, |
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28 TIFFIsCODECConfigured − codec-related utility |
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29 routines</p> |
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30 </td> |
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31 </table> |
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32 <a name="SYNOPSIS"></a> |
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33 <h2>SYNOPSIS</h2> |
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39 <td width="91%"> |
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40 <p><b>#include <tiffio.h></b></p> |
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41 <!-- INDENTATION --> |
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42 <p><b>const TIFFCodec* TIFFFindCODEC(uint16</b> |
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43 <i>scheme</i><b>);<br> |
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44 TIFFCodec* TIFFRegisterCODEC(uint16</b> <i>scheme</i><b>, |
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45 const char *</b><i>method</i><b>, TIFFInitMethod</b> |
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46 <i>init</i><b>);<br> |
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47 void TIFFUnRegisterCODEC(TIFFCodec |
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48 *</b><i>codec</i><b>);<br> |
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49 int TIFFIsCODECConfigured(uint16</b> |
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50 <i>scheme</i><b>);</b></p> |
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51 </td> |
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52 </table> |
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53 <a name="DESCRIPTION"></a> |
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54 <h2>DESCRIPTION</h2> |
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55 <!-- INDENTATION --> |
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61 <p><i>libtiff</i> supports a variety of compression schemes |
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62 implemented by software <i>codecs</i>. Each codec adheres to |
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63 a modular interface that provides for the decoding and |
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64 encoding of image data; as well as some other methods for |
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65 initialization, setup, cleanup, and the control of default |
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66 strip and tile sizes. Codecs are identified by the |
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67 associated value of the <small>TIFF</small> |
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68 <i>Compression</i> tag; e.g. 5 for <small>LZW</small> |
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69 compression.</p> |
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70 <!-- INDENTATION --> |
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71 <p>The <i>TIFFRegisterCODEC</i> routine can be used to |
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72 augment or override the set of codecs available to an |
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73 application. If the specified <i>scheme</i> already has a |
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74 registered codec then it is <i>overridden</i> and any images |
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75 with data encoded with this compression scheme will be |
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76 decoded using the supplied coded.</p> |
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77 <!-- INDENTATION --> |
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78 <p><i>TIFFIsCODECConfigured</i> returns 1 if the codec is |
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79 configured and working. Otherwise 0 will be returned.</p> |
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80 </td> |
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81 </table> |
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82 <a name="DIAGNOSTICS"></a> |
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83 <h2>DIAGNOSTICS</h2> |
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84 <!-- INDENTATION --> |
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90 <p><b>No space to register compression scheme %s</b>. |
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91 <i>TIFFRegisterCODEC</i> was unable to allocate memory for |
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92 the data structures needed to register a codec.</p> |
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93 <!-- INDENTATION --> |
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94 <p><b>Cannot remove compression scheme %s; not |
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95 registered</b>. <i>TIFFUnRegisterCODEC</i> did not locate |
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96 the specified codec in the table of registered compression |
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97 schemes.</p> |
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98 </td> |
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99 </table> |
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100 <a name="SEE ALSO"></a> |
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101 <h2>SEE ALSO</h2> |
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102 <!-- INDENTATION --> |
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106 <td width="8%"></td> |
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107 <td width="91%"> |
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108 <p><b>libtiff</b>(3TIFF)</p> |
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109 <!-- INDENTATION --> |
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110 <p>Libtiff library home page: |
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111 <b>http://www.remotesensing.org/libtiff/</b></p> |
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112 </td> |
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113 </table> |
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114 <hr> |
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115 </body> |
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116 </html> |