[52d29f7] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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[6732c094] | 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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[52d29f7] | 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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| 6 |
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[5a50d8a] | 7 | <!ENTITY libjpeg-download-http "http://www.ijg.org/files/jpegsrc.v&libjpeg-version;.tar.gz">
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[67d982c] | 8 | <!ENTITY libjpeg-download-ftp " ">
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[8c4a66d] | 9 | <!ENTITY libjpeg-md5sum "52654eb3b2e60c35731ea8fc87f1bd29">
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| 10 | <!ENTITY libjpeg-size "972 KB">
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| 11 | <!ENTITY libjpeg-buildsize "13 MB">
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| 12 | <!ENTITY libjpeg-time "0.3 SBU">
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[52d29f7] | 13 | ]>
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| 14 |
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[f45b1953] | 15 | <sect1 id="libjpeg" xreflabel="libjpeg-&libjpeg-version;">
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[c956539] | 16 | <?dbhtml filename="libjpeg.html"?>
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| 17 |
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| 18 |
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[5a50d8a] | 19 | <title>libjpeg-&libjpeg-version;</title>
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[c956539] | 20 |
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| 21 | <indexterm zone="libjpeg">
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[5a50d8a] | 22 | <primary sortas="a-libjpeg">libjpeg</primary>
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[c956539] | 23 | </indexterm>
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| 24 |
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| 25 | <sect2 role="package">
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[5a50d8a] | 26 | <title>Introduction to libjpeg</title>
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[c956539] | 27 |
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| 28 | <para>The <application>libjpeg</application> package contains libraries
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| 29 | that allow compression of image files based on the Joint Photographic Experts
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| 30 | Group standard. It is a "lossy" compression algorithm.</para>
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| 31 |
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[5811f7e] | 32 | &lfs72_checked;
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[a263ccb3] | 33 |
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[c956539] | 34 | <bridgehead renderas="sect3">Package Information</bridgehead>
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| 35 | <itemizedlist spacing="compact">
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| 36 | <listitem>
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| 37 | <para>Download (HTTP): <ulink url="&libjpeg-download-http;"/></para>
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| 38 | </listitem>
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| 39 | <listitem>
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| 40 | <para>Download (FTP): <ulink url="&libjpeg-download-ftp;"/></para>
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| 41 | </listitem>
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| 42 | <listitem>
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| 43 | <para>Download MD5 sum: &libjpeg-md5sum;</para>
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| 44 | </listitem>
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| 45 | <listitem>
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| 46 | <para>Download size: &libjpeg-size;</para>
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| 47 | </listitem>
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| 48 | <listitem>
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| 49 | <para>Estimated disk space required: &libjpeg-buildsize;</para>
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| 50 | </listitem>
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| 51 | <listitem>
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| 52 | <para>Estimated build time: &libjpeg-time;</para>
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| 53 | </listitem>
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| 54 | </itemizedlist>
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| 55 |
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[1039de3] | 56 | <para condition="html" role="usernotes">User Notes:
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| 57 | <ulink url="&blfs-wiki;/libjpeg"/></para>
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| 58 |
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[c956539] | 59 | </sect2>
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| 60 |
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| 61 | <sect2 role="installation">
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[5a50d8a] | 62 | <title>Installation of libjpeg</title>
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[c956539] | 63 |
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[e9116cc] | 64 | <para>Install <application>libjpeg</application> by running the following
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[c956539] | 65 | commands:</para>
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| 66 |
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[840f093] | 67 | <screen><userinput>./configure --prefix=/usr &&
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[c956539] | 68 | make</userinput></screen>
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| 69 |
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| 70 | <para>To test the results, issue: <command>make test</command>.</para>
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| 71 |
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| 72 | <para>Now, as the <systemitem class="username">root</systemitem> user:</para>
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| 73 |
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| 74 | <screen role="root"><userinput>make install</userinput></screen>
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| 75 |
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| 76 | </sect2>
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| 77 |
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| 78 | <sect2 role="content">
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| 79 | <title>Contents</title>
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| 80 |
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| 81 | <segmentedlist>
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| 82 | <segtitle>Installed Programs</segtitle>
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| 83 | <segtitle>Installed Library</segtitle>
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| 84 | <segtitle>Installed Directories</segtitle>
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| 85 |
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| 86 | <seglistitem>
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| 87 | <seg>cjpeg, djpeg, jpegtran, rdjpgcom, and wrjpgcom</seg>
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[1039de3] | 88 | <seg>libjpeg.{so,a}</seg>
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[c956539] | 89 | <seg>None</seg>
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| 90 | </seglistitem>
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| 91 | </segmentedlist>
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| 92 |
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| 93 | <variablelist>
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| 94 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 95 | <?dbfo list-presentation="list"?>
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| 96 | <?dbhtml list-presentation="table"?>
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| 97 |
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| 98 | <varlistentry id="cjpeg">
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| 99 | <term><command>cjpeg</command></term>
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| 100 | <listitem>
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[e9116cc] | 101 | <para>compresses image files to produce a JPEG/JFIF file on the
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| 102 | standard output. Currently supported input file formats are: PPM
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| 103 | (PBMPLUS color format), PGM (PBMPLUS gray-scale format),
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[c956539] | 104 | BMP, and Targa.</para>
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| 105 | <indexterm zone="libjpeg cjpeg">
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| 106 | <primary sortas="b-cjpeg">cjpeg</primary>
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| 107 | </indexterm>
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| 108 | </listitem>
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| 109 | </varlistentry>
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| 110 |
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| 111 | <varlistentry id="djpeg">
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| 112 | <term><command>djpeg</command></term>
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| 113 | <listitem>
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[e9116cc] | 114 | <para>decompresses image files from JPEG/JFIF format to either
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| 115 | PPM (PBMPLUS color format), PGM (PBMPLUS gray-scale format),
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[c956539] | 116 | BMP, or Targa format.</para>
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| 117 | <indexterm zone="libjpeg djpeg">
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| 118 | <primary sortas="b-djpeg">djpeg</primary>
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| 119 | </indexterm>
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| 120 | </listitem>
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| 121 | </varlistentry>
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| 122 |
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| 123 | <varlistentry id="jpegtran">
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| 124 | <term><command>jpegtran</command></term>
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| 125 | <listitem>
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| 126 | <para>is used for lossless transformation of JPEG files.</para>
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| 127 | <indexterm zone="libjpeg jpegtran">
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| 128 | <primary sortas="b-jpegtran">jpegtran</primary>
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| 129 | </indexterm>
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| 130 | </listitem>
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| 131 | </varlistentry>
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| 132 |
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| 133 | <varlistentry id="rdjpgcom">
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| 134 | <term><command>rdjpgcom</command></term>
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| 135 | <listitem>
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| 136 | <para>displays text comments from within a JPEG file.</para>
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| 137 | <indexterm zone="libjpeg rdjpgcom">
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| 138 | <primary sortas="b-rdjpgcom">rdjpgcom</primary>
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| 139 | </indexterm>
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| 140 | </listitem>
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| 141 | </varlistentry>
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| 142 |
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| 143 | <varlistentry id="wrjpgcom">
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| 144 | <term><command>wrjpgcom</command></term>
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| 145 | <listitem>
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| 146 | <para>inserts text comments into a JPEG file.</para>
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| 147 | <indexterm zone="libjpeg wrjpgcom">
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| 148 | <primary sortas="b-wrjpgcom">wrjpgcom</primary>
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| 149 | </indexterm>
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| 150 | </listitem>
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| 151 | </varlistentry>
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| 152 |
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| 153 | <varlistentry id="libjpeg-lib">
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[1039de3] | 154 | <term><filename class='libraryfile'>libjpeg.{so,a}</filename></term>
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[c956539] | 155 | <listitem>
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[e9116cc] | 156 | <para>library is used by many programs for reading and writing
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[c956539] | 157 | JPEG format files.</para>
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| 158 | <indexterm zone="libjpeg libjpeg-lib">
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[1039de3] | 159 | <primary sortas="c-libjpeg">libjpeg.{so,a}</primary>
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[c956539] | 160 | </indexterm>
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| 161 | </listitem>
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| 162 | </varlistentry>
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| 163 |
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| 164 | </variablelist>
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| 165 |
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| 166 | </sect2>
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[f45b1953] | 167 |
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| 168 | </sect1>
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