[7ca0e36] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 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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| 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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| 6 |
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[8dfc5c3] | 7 | <!ENTITY libjpeg-download-http "&sourceforge-dl;/libjpeg-turbo/libjpeg-turbo-&libjpeg-turbo-version;.tar.gz">
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[7ca0e36] | 8 | <!ENTITY libjpeg-download-ftp " ">
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[fc83fc6] | 9 | <!ENTITY libjpeg-md5sum "3241b54016c445e5d8f0ebb0ad9294ed">
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[f3e509d] | 10 | <!ENTITY libjpeg-size "2.2 MB">
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[fc83fc6] | 11 | <!ENTITY libjpeg-buildsize "17 MB (add 17 MB for tests)">
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[dac8a115] | 12 | <!ENTITY libjpeg-time "0.1 SBU (using parallelism=4; add 0.2 SBU for tests)">
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[7ca0e36] | 13 | ]>
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| 14 |
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| 15 | <sect1 id="libjpeg" xreflabel="libjpeg-turbo-&libjpeg-turbo-version;">
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| 16 | <?dbhtml filename="libjpeg.html"?>
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| 17 |
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| 18 |
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| 19 | <title>libjpeg-turbo-&libjpeg-turbo-version;</title>
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| 20 |
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| 21 | <indexterm zone="libjpeg">
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| 22 | <primary sortas="a-libjpeg-turbo">libjpeg-turbo</primary>
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| 23 | </indexterm>
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| 24 |
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| 25 | <sect2 role="package">
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| 26 | <title>Introduction to libjpeg-turbo</title>
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| 27 |
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| 28 | <para>
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| 29 | <application>libjpeg-turbo</application> is a fork of the original
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| 30 | IJG <application>libjpeg</application> which uses SIMD to accelerate
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| 31 | baseline JPEG compression and decompression.
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| 32 | <application>libjpeg</application> is a library that implements JPEG
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| 33 | image encoding, decoding and transcoding.
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| 34 | </para>
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| 35 |
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[d8fd588] | 36 | &lfs112_checked;
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[7ca0e36] | 37 |
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| 38 | <bridgehead renderas="sect3">Package Information</bridgehead>
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| 39 | <itemizedlist spacing="compact">
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| 40 | <listitem>
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| 41 | <para>
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| 42 | Download (HTTP): <ulink url="&libjpeg-download-http;"/>
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| 43 | </para>
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| 44 | </listitem>
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| 45 | <listitem>
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| 46 | <para>
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| 47 | Download (FTP): <ulink url="&libjpeg-download-ftp;"/>
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| 48 | </para>
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| 49 | </listitem>
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| 50 | <listitem>
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| 51 | <para>
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| 52 | Download MD5 sum: &libjpeg-md5sum;
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| 53 | </para>
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| 54 | </listitem>
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| 55 | <listitem>
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| 56 | <para>
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| 57 | Download size: &libjpeg-size;
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| 58 | </para>
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| 59 | </listitem>
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| 60 | <listitem>
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| 61 | <para>
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| 62 | Estimated disk space required: &libjpeg-buildsize;
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| 63 | </para>
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| 64 | </listitem>
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| 65 | <listitem>
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| 66 | <para>
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| 67 | Estimated build time: &libjpeg-time;
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| 68 | </para>
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| 69 | </listitem>
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| 70 | </itemizedlist>
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| 71 |
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[e389130] | 72 | <bridgehead renderas="sect3">libjpeg-turbo Dependencies</bridgehead>
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| 73 |
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| 74 | <bridgehead renderas="sect4">Required</bridgehead>
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| 75 | <para role="required">
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[7788630d] | 76 | <xref linkend="cmake"/> and
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[8558044] | 77 | <xref linkend="nasm"/> or
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[7788630d] | 78 | <xref linkend="yasm"/>
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[e389130] | 79 | </para>
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| 80 |
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[7ca0e36] | 81 | <para condition="html" role="usernotes">User Notes:
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| 82 | <ulink url="&blfs-wiki;/libjpeg-turbo"/>
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| 83 | </para>
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| 84 | </sect2>
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| 85 |
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| 86 | <sect2 role="installation">
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| 87 | <title>Installation of libjpeg-turbo</title>
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| 88 |
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| 89 | <para>
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| 90 | Install <application>libjpeg-turbo</application> by running the
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| 91 | following commands:
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| 92 | </para>
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| 93 |
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[f3a6aaca] | 94 | <screen><userinput>mkdir build &&
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[97828bc] | 95 | cd build &&
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| 96 |
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| 97 | cmake -DCMAKE_INSTALL_PREFIX=/usr \
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| 98 | -DCMAKE_BUILD_TYPE=RELEASE \
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| 99 | -DENABLE_STATIC=FALSE \
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[3155946] | 100 | -DCMAKE_INSTALL_DOCDIR=/usr/share/doc/libjpeg-turbo-&libjpeg-turbo-version; \
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[97828bc] | 101 | -DCMAKE_INSTALL_DEFAULT_LIBDIR=lib \
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| 102 | .. &&
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[7ca0e36] | 103 | make</userinput></screen>
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| 104 |
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| 105 | <para>
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| 106 | To test the results, issue: <command>make test</command>.
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| 107 | </para>
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[ed7ed607] | 108 | <!--
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[637f310] | 109 | <note><para>
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| 110 | If installing <application>libjpeg-turbo</application> over an older jpeg
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| 111 | installation, not all library symbolic links are updated properly. To fix
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| 112 | this before installation, run the following as the <systemitem
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| 113 | class="username">root</systemitem> user:</para>
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| 114 |
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| 115 | <screen role="root"><userinput>rm -f /usr/lib/libjpeg.so*</userinput></screen>
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| 116 |
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| 117 | </note>
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[ed7ed607] | 118 | -->
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[7ca0e36] | 119 | <para>
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| 120 | Now, as the <systemitem class="username">root</systemitem> user:
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| 121 | </para>
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| 122 |
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[2203185] | 123 | <screen role="root"><userinput>make install</userinput></screen>
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[7ca0e36] | 124 |
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| 125 | </sect2>
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[abf53e1] | 126 |
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[7ca0e36] | 127 | <sect2 role="commands">
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| 128 | <title>Command Explanations</title>
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| 129 |
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[f2710d28] | 130 | <para>
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[aa41434] | 131 | <option>-DWITH_JPEG8=ON</option>: This switch enables compatibility
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[eecab611] | 132 | with <application>libjpeg</application> version 8.
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[f2710d28] | 133 | </para>
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[abf53e1] | 134 | </sect2>
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| 135 |
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[7ca0e36] | 136 | <sect2 role="content">
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| 137 | <title>Contents</title>
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| 138 |
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| 139 | <segmentedlist>
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| 140 | <segtitle>Installed Programs</segtitle>
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| 141 | <segtitle>Installed Libraries</segtitle>
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| 142 | <segtitle>Installed Directories</segtitle>
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| 143 |
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| 144 | <seglistitem>
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| 145 | <seg>
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[eecab611] | 146 | cjpeg, djpeg, jpegtran, rdjpgcom, tjbench, and wrjpgcom
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[7ca0e36] | 147 | </seg>
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| 148 | <seg>
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| 149 | libjpeg.so and libturbojpeg.so
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| 150 | </seg>
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| 151 | <seg>
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| 152 | /usr/share/doc/libjpeg-turbo-&libjpeg-turbo-version;
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| 153 | </seg>
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| 154 | </seglistitem>
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| 155 | </segmentedlist>
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| 156 |
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| 157 | <variablelist>
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| 158 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 159 | <?dbfo list-presentation="list"?>
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| 160 | <?dbhtml list-presentation="table"?>
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| 161 |
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| 162 | <varlistentry id="cjpeg">
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| 163 | <term><command>cjpeg</command></term>
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| 164 | <listitem>
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[09f0998] | 165 | <para>
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| 166 | compresses image files to produce a JPEG/JFIF file on the
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| 167 | standard output. Currently supported input file formats are: PPM
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| 168 | (PBMPLUS color format), PGM (PBMPLUS gray-scale format),
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[4c24eb0a] | 169 | BMP, and Targa
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[09f0998] | 170 | </para>
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[7ca0e36] | 171 | <indexterm zone="libjpeg cjpeg">
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| 172 | <primary sortas="b-cjpeg">cjpeg</primary>
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| 173 | </indexterm>
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| 174 | </listitem>
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| 175 | </varlistentry>
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| 176 |
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| 177 | <varlistentry id="djpeg">
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| 178 | <term><command>djpeg</command></term>
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| 179 | <listitem>
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[09f0998] | 180 | <para>
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| 181 | decompresses image files from JPEG/JFIF format to either
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| 182 | PPM (PBMPLUS color format), PGM (PBMPLUS gray-scale format),
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[4c24eb0a] | 183 | BMP, or Targa format
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[09f0998] | 184 | </para>
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[7ca0e36] | 185 | <indexterm zone="libjpeg djpeg">
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| 186 | <primary sortas="b-djpeg">djpeg</primary>
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| 187 | </indexterm>
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| 188 | </listitem>
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| 189 | </varlistentry>
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| 190 |
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| 191 | <varlistentry id="jpegtran">
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| 192 | <term><command>jpegtran</command></term>
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| 193 | <listitem>
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[09f0998] | 194 | <para>
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[4c24eb0a] | 195 | is used for lossless transformation of JPEG files
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[09f0998] | 196 | </para>
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[7ca0e36] | 197 | <indexterm zone="libjpeg jpegtran">
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| 198 | <primary sortas="b-jpegtran">jpegtran</primary>
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| 199 | </indexterm>
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| 200 | </listitem>
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| 201 | </varlistentry>
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| 202 |
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| 203 | <varlistentry id="rdjpgcom">
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| 204 | <term><command>rdjpgcom</command></term>
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| 205 | <listitem>
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[09f0998] | 206 | <para>
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[4c24eb0a] | 207 | displays text comments from within a JPEG file
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[09f0998] | 208 | </para>
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[7ca0e36] | 209 | <indexterm zone="libjpeg rdjpgcom">
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| 210 | <primary sortas="b-rdjpgcom">rdjpgcom</primary>
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| 211 | </indexterm>
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| 212 | </listitem>
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| 213 | </varlistentry>
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| 214 |
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[eecab611] | 215 | <varlistentry id="tjbench">
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| 216 | <term><command>tjbench</command></term>
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| 217 | <listitem>
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[09f0998] | 218 | <para>
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[4c24eb0a] | 219 | is used to benchmark the performance of libjpeg-turbo
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[09f0998] | 220 | </para>
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[eecab611] | 221 | <indexterm zone="libjpeg tjbench">
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| 222 | <primary sortas="b-tjbench">tjbench</primary>
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| 223 | </indexterm>
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| 224 | </listitem>
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| 225 | </varlistentry>
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| 226 |
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[7ca0e36] | 227 | <varlistentry id="wrjpgcom">
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| 228 | <term><command>wrjpgcom</command></term>
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| 229 | <listitem>
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[09f0998] | 230 | <para>
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[4c24eb0a] | 231 | inserts text comments into a JPEG file
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[09f0998] | 232 | </para>
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[7ca0e36] | 233 | <indexterm zone="libjpeg wrjpgcom">
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| 234 | <primary sortas="b-wrjpgcom">wrjpgcom</primary>
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| 235 | </indexterm>
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| 236 | </listitem>
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| 237 | </varlistentry>
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| 238 |
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| 239 | <varlistentry id="libjpeg-lib">
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| 240 | <term><filename class="libraryfile">libjpeg.so</filename></term>
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| 241 | <listitem>
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| 242 | <para>
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[4c24eb0a] | 243 | contains functions used for reading and writing JPEG images
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[09f0998] | 244 | </para>
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[7ca0e36] | 245 | <indexterm zone="libjpeg libjpeg-lib">
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| 246 | <primary sortas="c-libjpeg">libjpeg.so</primary>
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| 247 | </indexterm>
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| 248 | </listitem>
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| 249 | </varlistentry>
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| 250 |
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| 251 | </variablelist>
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| 252 |
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| 253 | </sect2>
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| 254 |
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| 255 | </sect1>
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