[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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[1612127] | 9 | <!ENTITY libjpeg-md5sum "1fdc6494521a8724f5f7cf39b0f6aff3">
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[8d23330a] | 10 | <!ENTITY libjpeg-size "2.7 MB">
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| 11 | <!ENTITY libjpeg-buildsize "55 MB (with tests)">
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| 12 | <!ENTITY libjpeg-time "0.5 SBU (with tests; both using parallelism=4)">
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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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[2a72ab9] | 36 | &lfs120_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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[3ca986e0] | 76 | <xref linkend="cmake"/>
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| 77 | </para>
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| 78 |
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| 79 | <bridgehead renderas="sect4">Recommended</bridgehead>
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| 80 | <para role="recommended">
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| 81 | <xref linkend="nasm"/> or <xref linkend="yasm"/>
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| 82 | (for building the package with optimized assembly routine)
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[e389130] | 83 | </para>
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| 84 |
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[7ca0e36] | 85 | </sect2>
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| 86 |
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| 87 | <sect2 role="installation">
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| 88 | <title>Installation of libjpeg-turbo</title>
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| 89 |
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| 90 | <para>
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| 91 | Install <application>libjpeg-turbo</application> by running the
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| 92 | following commands:
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| 93 | </para>
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| 94 |
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[f3a6aaca] | 95 | <screen><userinput>mkdir build &&
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[97828bc] | 96 | cd build &&
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| 97 |
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| 98 | cmake -DCMAKE_INSTALL_PREFIX=/usr \
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| 99 | -DCMAKE_BUILD_TYPE=RELEASE \
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| 100 | -DENABLE_STATIC=FALSE \
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[3155946] | 101 | -DCMAKE_INSTALL_DOCDIR=/usr/share/doc/libjpeg-turbo-&libjpeg-turbo-version; \
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[97828bc] | 102 | -DCMAKE_INSTALL_DEFAULT_LIBDIR=lib \
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| 103 | .. &&
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[7ca0e36] | 104 | make</userinput></screen>
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| 105 |
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| 106 | <para>
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| 107 | To test the results, issue: <command>make test</command>.
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| 108 | </para>
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[ed7ed607] | 109 | <!--
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[637f310] | 110 | <note><para>
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| 111 | If installing <application>libjpeg-turbo</application> over an older jpeg
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| 112 | installation, not all library symbolic links are updated properly. To fix
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| 113 | this before installation, run the following as the <systemitem
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| 114 | class="username">root</systemitem> user:</para>
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| 115 |
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| 116 | <screen role="root"><userinput>rm -f /usr/lib/libjpeg.so*</userinput></screen>
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| 117 |
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| 118 | </note>
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[ed7ed607] | 119 | -->
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[7ca0e36] | 120 | <para>
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| 121 | Now, as the <systemitem class="username">root</systemitem> user:
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| 122 | </para>
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| 123 |
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[2203185] | 124 | <screen role="root"><userinput>make install</userinput></screen>
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[7ca0e36] | 125 |
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| 126 | </sect2>
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[abf53e1] | 127 |
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[7ca0e36] | 128 | <sect2 role="commands">
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| 129 | <title>Command Explanations</title>
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| 130 |
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[f2710d28] | 131 | <para>
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[aa41434] | 132 | <option>-DWITH_JPEG8=ON</option>: This switch enables compatibility
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[eecab611] | 133 | with <application>libjpeg</application> version 8.
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[f2710d28] | 134 | </para>
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[abf53e1] | 135 | </sect2>
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| 136 |
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[7ca0e36] | 137 | <sect2 role="content">
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| 138 | <title>Contents</title>
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| 139 |
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| 140 | <segmentedlist>
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| 141 | <segtitle>Installed Programs</segtitle>
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| 142 | <segtitle>Installed Libraries</segtitle>
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| 143 | <segtitle>Installed Directories</segtitle>
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| 144 |
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| 145 | <seglistitem>
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| 146 | <seg>
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[eecab611] | 147 | cjpeg, djpeg, jpegtran, rdjpgcom, tjbench, and wrjpgcom
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[7ca0e36] | 148 | </seg>
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| 149 | <seg>
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| 150 | libjpeg.so and libturbojpeg.so
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| 151 | </seg>
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| 152 | <seg>
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| 153 | /usr/share/doc/libjpeg-turbo-&libjpeg-turbo-version;
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| 154 | </seg>
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| 155 | </seglistitem>
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| 156 | </segmentedlist>
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| 157 |
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| 158 | <variablelist>
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| 159 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 160 | <?dbfo list-presentation="list"?>
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| 161 | <?dbhtml list-presentation="table"?>
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| 162 |
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| 163 | <varlistentry id="cjpeg">
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| 164 | <term><command>cjpeg</command></term>
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| 165 | <listitem>
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[09f0998] | 166 | <para>
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| 167 | compresses image files to produce a JPEG/JFIF file on the
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| 168 | standard output. Currently supported input file formats are: PPM
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| 169 | (PBMPLUS color format), PGM (PBMPLUS gray-scale format),
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[4c24eb0a] | 170 | BMP, and Targa
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[09f0998] | 171 | </para>
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[7ca0e36] | 172 | <indexterm zone="libjpeg cjpeg">
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| 173 | <primary sortas="b-cjpeg">cjpeg</primary>
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| 174 | </indexterm>
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| 175 | </listitem>
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| 176 | </varlistentry>
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| 177 |
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| 178 | <varlistentry id="djpeg">
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| 179 | <term><command>djpeg</command></term>
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| 180 | <listitem>
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[09f0998] | 181 | <para>
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| 182 | decompresses image files from JPEG/JFIF format to either
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| 183 | PPM (PBMPLUS color format), PGM (PBMPLUS gray-scale format),
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[4c24eb0a] | 184 | BMP, or Targa format
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[09f0998] | 185 | </para>
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[7ca0e36] | 186 | <indexterm zone="libjpeg djpeg">
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| 187 | <primary sortas="b-djpeg">djpeg</primary>
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| 188 | </indexterm>
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| 189 | </listitem>
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| 190 | </varlistentry>
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| 191 |
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| 192 | <varlistentry id="jpegtran">
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| 193 | <term><command>jpegtran</command></term>
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| 194 | <listitem>
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[09f0998] | 195 | <para>
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[4c24eb0a] | 196 | is used for lossless transformation of JPEG files
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[09f0998] | 197 | </para>
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[7ca0e36] | 198 | <indexterm zone="libjpeg jpegtran">
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| 199 | <primary sortas="b-jpegtran">jpegtran</primary>
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| 200 | </indexterm>
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| 201 | </listitem>
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| 202 | </varlistentry>
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| 203 |
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| 204 | <varlistentry id="rdjpgcom">
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| 205 | <term><command>rdjpgcom</command></term>
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| 206 | <listitem>
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[09f0998] | 207 | <para>
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[4c24eb0a] | 208 | displays text comments from within a JPEG file
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[09f0998] | 209 | </para>
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[7ca0e36] | 210 | <indexterm zone="libjpeg rdjpgcom">
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| 211 | <primary sortas="b-rdjpgcom">rdjpgcom</primary>
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| 212 | </indexterm>
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| 213 | </listitem>
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| 214 | </varlistentry>
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| 215 |
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[eecab611] | 216 | <varlistentry id="tjbench">
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| 217 | <term><command>tjbench</command></term>
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| 218 | <listitem>
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[09f0998] | 219 | <para>
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[4c24eb0a] | 220 | is used to benchmark the performance of libjpeg-turbo
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[09f0998] | 221 | </para>
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[eecab611] | 222 | <indexterm zone="libjpeg tjbench">
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| 223 | <primary sortas="b-tjbench">tjbench</primary>
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| 224 | </indexterm>
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| 225 | </listitem>
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| 226 | </varlistentry>
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| 227 |
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[7ca0e36] | 228 | <varlistentry id="wrjpgcom">
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| 229 | <term><command>wrjpgcom</command></term>
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| 230 | <listitem>
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[09f0998] | 231 | <para>
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[4c24eb0a] | 232 | inserts text comments into a JPEG file
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[09f0998] | 233 | </para>
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[7ca0e36] | 234 | <indexterm zone="libjpeg wrjpgcom">
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| 235 | <primary sortas="b-wrjpgcom">wrjpgcom</primary>
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| 236 | </indexterm>
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| 237 | </listitem>
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| 238 | </varlistentry>
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| 239 |
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| 240 | <varlistentry id="libjpeg-lib">
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| 241 | <term><filename class="libraryfile">libjpeg.so</filename></term>
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| 242 | <listitem>
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| 243 | <para>
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[4c24eb0a] | 244 | contains functions used for reading and writing JPEG images
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[09f0998] | 245 | </para>
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[7ca0e36] | 246 | <indexterm zone="libjpeg libjpeg-lib">
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| 247 | <primary sortas="c-libjpeg">libjpeg.so</primary>
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| 248 | </indexterm>
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| 249 | </listitem>
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| 250 | </varlistentry>
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| 251 |
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| 252 | </variablelist>
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| 253 |
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| 254 | </sect2>
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| 255 |
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| 256 | </sect1>
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