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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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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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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40 | &lfs77_checked; &gcc5_checked;
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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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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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80 | <xref linkend="nasm"/> or <xref linkend="yasm"/>
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81 | </para>
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82 |
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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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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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100 | --mandir=/usr/share/man \
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101 | --with-jpeg8 \
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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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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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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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123 | <screen role="root"><userinput>make install</userinput></screen>
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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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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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133 | </para>
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134 |
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135 | <para>
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136 | <parameter>--with-jpeg8</parameter>: This switch enables compatibility
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137 | with <application>libjpeg</application> version 8.
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138 | </para>
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139 |
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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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155 | cjpeg, djpeg, jpegtran, rdjpgcom, tjbench, and wrjpgcom
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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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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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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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