[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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| 7 | <!ENTITY libjpeg-download-http "&sourceforge-repo;/libjpeg-turbo/libjpeg-turbo-&libjpeg-turbo-version;.tar.gz">
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| 8 | <!ENTITY libjpeg-download-ftp " ">
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[a950991] | 9 | <!ENTITY libjpeg-md5sum "039153dabe61e1ac8d9323b5522b56b0">
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| 10 | <!ENTITY libjpeg-size "1.5 MB">
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| 11 | <!ENTITY libjpeg-buildsize "15 MB">
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| 12 | <!ENTITY libjpeg-time "0.4 SBU (additional 0.2 SBU for the 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 | <sect1info>
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| 19 | <othername>$LastChangedBy$</othername>
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| 20 | <date>$Date$</date>
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| 21 | </sect1info>
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| 22 |
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| 23 | <title>libjpeg-turbo-&libjpeg-turbo-version;</title>
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| 24 |
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| 25 | <indexterm zone="libjpeg">
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| 26 | <primary sortas="a-libjpeg-turbo">libjpeg-turbo</primary>
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| 27 | </indexterm>
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| 28 |
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| 29 | <sect2 role="package">
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| 30 | <title>Introduction to libjpeg-turbo</title>
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| 31 |
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| 32 | <para>
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| 33 | <application>libjpeg-turbo</application> is a fork of the original
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| 34 | IJG <application>libjpeg</application> which uses SIMD to accelerate
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| 35 | baseline JPEG compression and decompression.
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| 36 | <application>libjpeg</application> is a library that implements JPEG
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| 37 | image encoding, decoding and transcoding.
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| 38 | </para>
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| 39 |
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[c22db16] | 40 | &lfs77_checked; &gcc5_checked;
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[7ca0e36] | 41 |
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| 42 | <bridgehead renderas="sect3">Package Information</bridgehead>
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| 43 | <itemizedlist spacing="compact">
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| 44 | <listitem>
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| 45 | <para>
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| 46 | Download (HTTP): <ulink url="&libjpeg-download-http;"/>
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| 47 | </para>
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| 48 | </listitem>
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| 49 | <listitem>
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| 50 | <para>
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| 51 | Download (FTP): <ulink url="&libjpeg-download-ftp;"/>
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| 52 | </para>
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| 53 | </listitem>
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| 54 | <listitem>
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| 55 | <para>
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| 56 | Download MD5 sum: &libjpeg-md5sum;
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| 57 | </para>
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| 58 | </listitem>
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| 59 | <listitem>
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| 60 | <para>
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| 61 | Download size: &libjpeg-size;
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| 62 | </para>
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| 63 | </listitem>
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| 64 | <listitem>
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| 65 | <para>
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| 66 | Estimated disk space required: &libjpeg-buildsize;
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| 67 | </para>
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| 68 | </listitem>
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| 69 | <listitem>
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| 70 | <para>
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| 71 | Estimated build time: &libjpeg-time;
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| 72 | </para>
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| 73 | </listitem>
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| 74 | </itemizedlist>
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| 75 |
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[e389130] | 76 | <bridgehead renderas="sect3">libjpeg-turbo Dependencies</bridgehead>
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| 77 |
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| 78 | <bridgehead renderas="sect4">Required</bridgehead>
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| 79 | <para role="required">
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[efdd9de] | 80 | <xref linkend="nasm"/> or <xref linkend="yasm"/>
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[e389130] | 81 | </para>
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| 82 |
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[7ca0e36] | 83 | <para condition="html" role="usernotes">User Notes:
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| 84 | <ulink url="&blfs-wiki;/libjpeg-turbo"/>
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| 85 | </para>
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| 86 | </sect2>
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| 87 |
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| 88 | <sect2 role="installation">
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| 89 | <title>Installation of libjpeg-turbo</title>
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| 90 |
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| 91 | <para>
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| 92 | Install <application>libjpeg-turbo</application> by running the
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| 93 | following commands:
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| 94 | </para>
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| 95 |
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[eecab611] | 96 | <screen><userinput>sed -i -e '/^docdir/ s:$:/libjpeg-turbo-&libjpeg-turbo-version;:' \
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| 97 | -e '/^exampledir/ s:$:/libjpeg-turbo-&libjpeg-turbo-version;:' Makefile.in &&
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| 98 |
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| 99 | ./configure --prefix=/usr \
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[7ca0e36] | 100 | --mandir=/usr/share/man \
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[eecab611] | 101 | --with-jpeg8 \
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[7ca0e36] | 102 | --disable-static &&
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| 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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| 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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| 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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| 126 |
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| 127 | <sect2 role="commands">
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| 128 | <title>Command Explanations</title>
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| 129 |
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| 130 | <para>
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[eecab611] | 131 | <command>sed -i -e ...</command> This command fixes Makefile.in to install
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| 132 | documentation and examples in a version specific directory.
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[7ca0e36] | 133 | </para>
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| 134 |
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[f2710d28] | 135 | <para>
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[eecab611] | 136 | <parameter>--with-jpeg8</parameter>: This switch enables compatibility
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| 137 | with <application>libjpeg</application> version 8.
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[f2710d28] | 138 | </para>
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| 139 |
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[7ca0e36] | 140 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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| 141 | href="../../xincludes/static-libraries.xml"/>
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| 142 |
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| 143 | </sect2>
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| 144 |
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| 145 | <sect2 role="content">
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| 146 | <title>Contents</title>
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| 147 |
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| 148 | <segmentedlist>
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| 149 | <segtitle>Installed Programs</segtitle>
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| 150 | <segtitle>Installed Libraries</segtitle>
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| 151 | <segtitle>Installed Directories</segtitle>
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| 152 |
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| 153 | <seglistitem>
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| 154 | <seg>
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[eecab611] | 155 | cjpeg, djpeg, jpegtran, rdjpgcom, tjbench, and wrjpgcom
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[7ca0e36] | 156 | </seg>
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| 157 | <seg>
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| 158 | libjpeg.so and libturbojpeg.so
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| 159 | </seg>
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| 160 | <seg>
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| 161 | /usr/share/doc/libjpeg-turbo-&libjpeg-turbo-version;
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| 162 | </seg>
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| 163 | </seglistitem>
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| 164 | </segmentedlist>
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| 165 |
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| 166 | <variablelist>
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| 167 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 168 | <?dbfo list-presentation="list"?>
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| 169 | <?dbhtml list-presentation="table"?>
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| 170 |
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| 171 | <varlistentry id="cjpeg">
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| 172 | <term><command>cjpeg</command></term>
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| 173 | <listitem>
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| 174 | <para>compresses image files to produce a JPEG/JFIF file on the
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| 175 | standard output. Currently supported input file formats are: PPM
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| 176 | (PBMPLUS color format), PGM (PBMPLUS gray-scale format),
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| 177 | BMP, and Targa.</para>
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| 178 | <indexterm zone="libjpeg cjpeg">
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| 179 | <primary sortas="b-cjpeg">cjpeg</primary>
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| 180 | </indexterm>
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| 181 | </listitem>
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| 182 | </varlistentry>
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| 183 |
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| 184 | <varlistentry id="djpeg">
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| 185 | <term><command>djpeg</command></term>
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| 186 | <listitem>
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| 187 | <para>decompresses image files from JPEG/JFIF format to either
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| 188 | PPM (PBMPLUS color format), PGM (PBMPLUS gray-scale format),
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| 189 | BMP, or Targa format.</para>
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| 190 | <indexterm zone="libjpeg djpeg">
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| 191 | <primary sortas="b-djpeg">djpeg</primary>
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| 192 | </indexterm>
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| 193 | </listitem>
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| 194 | </varlistentry>
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| 195 |
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| 196 | <varlistentry id="jpegtran">
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| 197 | <term><command>jpegtran</command></term>
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| 198 | <listitem>
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| 199 | <para>is used for lossless transformation of JPEG files.</para>
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| 200 | <indexterm zone="libjpeg jpegtran">
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| 201 | <primary sortas="b-jpegtran">jpegtran</primary>
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| 202 | </indexterm>
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| 203 | </listitem>
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| 204 | </varlistentry>
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| 205 |
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| 206 | <varlistentry id="rdjpgcom">
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| 207 | <term><command>rdjpgcom</command></term>
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| 208 | <listitem>
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| 209 | <para>displays text comments from within a JPEG file.</para>
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| 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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| 219 | <para>is used to benchmark the performance of libjpeg-turbo.</para>
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| 220 | <indexterm zone="libjpeg tjbench">
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| 221 | <primary sortas="b-tjbench">tjbench</primary>
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| 222 | </indexterm>
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| 223 | </listitem>
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| 224 | </varlistentry>
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| 225 |
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[7ca0e36] | 226 | <varlistentry id="wrjpgcom">
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| 227 | <term><command>wrjpgcom</command></term>
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| 228 | <listitem>
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| 229 | <para>inserts text comments into a JPEG file.</para>
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| 230 | <indexterm zone="libjpeg wrjpgcom">
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| 231 | <primary sortas="b-wrjpgcom">wrjpgcom</primary>
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| 232 | </indexterm>
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| 233 | </listitem>
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| 234 | </varlistentry>
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| 235 |
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| 236 | <varlistentry id="libjpeg-lib">
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| 237 | <term><filename class="libraryfile">libjpeg.so</filename></term>
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| 238 | <listitem>
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| 239 | <para>
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| 240 | contains functions used for reading and writing
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| 241 | JPEG images.
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| 242 | </para>
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| 243 | <indexterm zone="libjpeg libjpeg-lib">
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| 244 | <primary sortas="c-libjpeg">libjpeg.so</primary>
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| 245 | </indexterm>
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| 246 | </listitem>
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| 247 | </varlistentry>
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| 248 |
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| 249 | </variablelist>
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| 250 |
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| 251 | </sect2>
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| 252 |
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| 253 | </sect1>
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