mirror of
https://github.com/Zeckmathederg/glfs.git
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c0c32c4794
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@3687 af4574ff-66df-0310-9fd7-8a98e5e911e0
168 lines
5.2 KiB
XML
168 lines
5.2 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
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"http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
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<!ENTITY % general-entities SYSTEM "../../general.ent">
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%general-entities;
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<!ENTITY libjpeg-download-http "http://www.ijg.org/files/jpegsrc.v&libjpeg-version;.tar.gz">
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<!ENTITY libjpeg-download-ftp "ftp://ftp.uu.net/graphics/jpeg/jpegsrc.v&libjpeg-version;.tar.gz">
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<!ENTITY libjpeg-md5sum "dbd5f3b47ed13132f04c685d608a7547">
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<!ENTITY libjpeg-size "599 KB">
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<!ENTITY libjpeg-buildsize "4.6 MB">
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<!ENTITY libjpeg-time "0.15 SBU">
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]>
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<sect1 id="libjpeg" xreflabel="libjpeg-&libjpeg-version;">
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<sect1info>
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<othername>$LastChangedBy$</othername>
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<date>$Date$</date>
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</sect1info>
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<?dbhtml filename="libjpeg.html"?>
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<title>libjpeg-&libjpeg-version;</title>
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<indexterm zone="libjpeg">
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<primary sortas="a-Libjpeg">Libjpeg</primary></indexterm>
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<sect2>
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<title>Introduction to <application>libjpeg</application></title>
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<para>The <application>libjpeg</application> package contains libraries
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that allow compression of image files based on the Joint Photographic Experts
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Group standard. It is a "lossy" compression algorithm.</para>
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<sect3><title>Package information</title>
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<itemizedlist spacing='compact'>
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<listitem><para>Download (HTTP):
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<ulink url="&libjpeg-download-http;"/></para></listitem>
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<listitem><para>Download (FTP):
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<ulink url="&libjpeg-download-ftp;"/></para></listitem>
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<listitem><para>Download MD5 sum: &libjpeg-md5sum;</para></listitem>
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<listitem><para>Download size: &libjpeg-size;</para></listitem>
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<listitem><para>Estimated disk space required:
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&libjpeg-buildsize;</para></listitem>
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<listitem><para>Estimated build time:
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&libjpeg-time;</para></listitem></itemizedlist>
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</sect3>
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</sect2>
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<sect2>
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<title>Installation of <application>libjpeg</application></title>
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<para>Install <application>libjpeg</application> by running the following
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commands:</para>
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<screen><userinput><command>./configure --prefix=/usr --enable-static --enable-shared &&
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make</command></userinput></screen>
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<para>To test the results, issue: <command>make test</command>.</para>
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<para>Now, as the root user:</para>
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<screen><userinput role='root'><command>make install</command></userinput></screen>
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</sect2>
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<sect2>
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<title>Command explanations</title>
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<para><parameter>--enable-static --enable-shared</parameter>: These switches
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tell <application>libjpeg</application> to build both shared and static
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libraries.</para>
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</sect2>
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<sect2>
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<title>Configuring <application>libjpeg</application></title>
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<sect3><title>Configuration Information</title>
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<xi:include xmlns:xi="http://www.w3.org/2003/XInclude" href="../../lib-config.xml"/>
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</sect3>
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</sect2>
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<sect2>
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<title>Contents</title>
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<segmentedlist>
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<segtitle>Installed Programs</segtitle>
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<segtitle>Installed Library</segtitle>
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<segtitle>Installed Directories</segtitle>
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<seglistitem>
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<seg>cjpeg, djpeg, jpegtran, rdjpgcom and wrjpgcom</seg>
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<seg>libjpeg.[so,a]</seg>
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<seg>None</seg>
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</seglistitem>
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</segmentedlist>
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<variablelist>
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<bridgehead renderas="sect3">Short Descriptions</bridgehead>
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<?dbfo list-presentation="list"?>
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<varlistentry id="cjpeg">
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<term><command>cjpeg</command></term>
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<listitem><para>compresses image files to produce a
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<acronym>JPEG</acronym>/<acronym>JFIF</acronym> file on the standard
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output. Currently supported input file formats are:
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<acronym>PPM</acronym> (PBMPLUS color format), <acronym>PGM</acronym>
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(PBMPLUS gray-scale format), <acronym>BMP</acronym>, and Targa.</para>
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<indexterm zone="libjpeg cjpeg">
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<primary sortas="b-cjpeg">cjpeg</primary>
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</indexterm></listitem>
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</varlistentry>
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<varlistentry id="djpeg">
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<term><command>djpeg</command></term>
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<listitem><para>decompresses image files from
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<acronym>JPEG</acronym>/<acronym>JFIF</acronym> format to either
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<acronym>PPM</acronym> (PBMPLUS color format), <acronym>PGM</acronym>
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(PBMPLUS gray-scale format), <acronym>BMP</acronym>, or Targa
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format.</para>
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<indexterm zone="libjpeg djpeg">
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<primary sortas="b-djpeg">djpeg</primary>
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</indexterm></listitem>
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</varlistentry>
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<varlistentry id="jpegtran">
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<term><command>jpegtran</command></term>
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<listitem><para>is used for lossless transformation of
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<acronym>JPEG</acronym> files.</para>
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<indexterm zone="libjpeg jpegtran">
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<primary sortas="b-jpegtran">jpegtran</primary>
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</indexterm></listitem>
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</varlistentry>
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<varlistentry id="rdjpgcom">
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<term><command>rdjpgcom</command></term>
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<listitem><para>displays text comments from within a <acronym>JPEG</acronym>
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file.</para>
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<indexterm zone="libjpeg rdjpgcom">
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<primary sortas="b-rdjpgcom">rdjpgcom</primary>
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</indexterm></listitem>
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</varlistentry>
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<varlistentry id="wrjpgcom">
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<term><command>wrjpgcom</command></term>
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<listitem><para>inserts text comments into a <acronym>JPEG</acronym>
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file.</para>
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<indexterm zone="libjpeg wrjpgcom">
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<primary sortas="b-wrjpgcom">wrjpgcom</primary>
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</indexterm></listitem>
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</varlistentry>
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<varlistentry id="libjpeg-lib">
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<term><filename class='libraryfile'>libjpeg.[so,a]</filename></term>
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<listitem><para>library is used by many programs for reading and writing
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<acronym>JPEG</acronym> format files.</para>
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<indexterm zone="libjpeg libjpeg-lib">
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<primary sortas="c-libjpeg">libjpeg.[so,a]</primary>
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</indexterm></listitem>
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</varlistentry>
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</variablelist>
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</sect2>
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</sect1>
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