<?xml version="1.0" encoding="ISO-8859-1"?> <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [ <!ENTITY % general-entities SYSTEM "../../general.ent"> %general-entities; <!ENTITY libwebp-download-http "http://downloads.webmproject.org/releases/webp/libwebp-&libwebp-version;.tar.gz"> <!ENTITY libwebp-download-ftp " "> <!ENTITY libwebp-md5sum "ba72dfa7588c751a3a9b735a6746a23e"> <!ENTITY libwebp-size "3.8 MB"> <!ENTITY libwebp-buildsize "45 MB"> <!ENTITY libwebp-time "0.4 SBU"> ]> <sect1 id="libwebp" xreflabel="libwebp-&libwebp-version;"> <?dbhtml filename="libwebp.html"?> <sect1info> <othername>$LastChangedBy$</othername> <date>$Date$</date> </sect1info> <title>libwebp-&libwebp-version;</title> <indexterm zone="libwebp"> <primary sortas="a-libwebp">libwebp</primary> </indexterm> <sect2 role="package"> <title>Introduction to libwebp</title> <para> The <application>libwebp</application> package contains a library and support programs to encode and decode images in WebP format. </para> &lfs83_checked; <bridgehead renderas="sect3">Package Information</bridgehead> <itemizedlist spacing="compact"> <listitem> <para> Download (HTTP): <ulink url="&libwebp-download-http;"/> </para> </listitem> <listitem> <para> Download (FTP): <ulink url="&libwebp-download-ftp;"/> </para> </listitem> <listitem> <para> Download MD5 sum: &libwebp-md5sum; </para> </listitem> <listitem> <para> Download size: &libwebp-size; </para> </listitem> <listitem> <para> Estimated disk space required: &libwebp-buildsize; </para> </listitem> <listitem> <para> Estimated build time: &libwebp-time; </para> </listitem> </itemizedlist> <bridgehead renderas="sect3">libwebp Dependencies</bridgehead> <bridgehead renderas="sect4">Recommended</bridgehead> <para role="recommended"> <xref linkend="libjpeg"/>, <xref linkend="libpng"/> and <xref linkend="libtiff"/> </para> <bridgehead renderas="sect4">Optional</bridgehead> <para role="optional"> <xref linkend="freeglut"/> and <xref linkend="giflib"/> </para> <para condition="html" role="usernotes"> User Notes: <ulink url="&blfs-wiki;/libwebp"/> </para> </sect2> <sect2 role="installation"> <title>Installation of libwebp</title> <para> Install <application>libwebp</application> by running the following commands: </para> <note> <para> If you are updating from libwebp-0.4.x or 0.5.x, and wish that installed applications link to the new version 0.6.x, they need to be reinstalled. </para> </note> <screen><userinput>./configure --prefix=/usr \ --enable-libwebpmux \ --enable-libwebpdemux \ --enable-libwebpdecoder \ --enable-libwebpextras \ --enable-swap-16bit-csp \ --disable-static && make</userinput></screen> <para> This package does not come with a test suite. </para> <para> Now, as the <systemitem class="username">root</systemitem> user: </para> <screen role="root"><userinput>make install</userinput></screen> </sect2> <sect2 role="commands"> <title>Command Explanations</title> <para> <parameter>--enable-swap-16bit-csp</parameter>: This switch enables byte swap for 16 bit colorspaces. </para> <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="../../xincludes/static-libraries.xml"/> </sect2> <sect2 role="content"> <title>Contents</title> <segmentedlist> <segtitle>Installed Programs</segtitle> <segtitle>Installed Library</segtitle> <segtitle>Installed Directory</segtitle> <seglistitem> <seg> cwebp, dwebp, gif2webp, vwebp, and webpmux </seg> <seg> libwebpdecoder.so, libwebpdemux.so, libwebpextras.so, libwebpmux.so, and libwebp.so </seg> <seg> /usr/include/webp </seg> </seglistitem> </segmentedlist> <variablelist> <bridgehead renderas="sect3">Short Descriptions</bridgehead> <?dbfo list-presentation="list"?> <?dbhtml list-presentation="table"?> <varlistentry id="cwebp"> <term><command>cwebp</command></term> <listitem> <para> compresses an image using the WebP format. </para> <indexterm zone="libwebp cwebp"> <primary sortas="b-cwebp">cwebp</primary> </indexterm> </listitem> </varlistentry> <varlistentry id="dwebp"> <term><command>dwebp</command></term> <listitem> <para> decompresses WebP files into PNG, PAM, PPM or PGM images. </para> <indexterm zone="libwebp dwebp"> <primary sortas="b-dwebp">dwebp</primary> </indexterm> </listitem> </varlistentry> <varlistentry id="gif2webp"> <term><command>gif2webp</command></term> <listitem> <para> converts a GIF image to a WebP image. </para> <indexterm zone="libwebp gif2webp"> <primary sortas="b-gif2webp">gif2webp</primary> </indexterm> </listitem> </varlistentry> <varlistentry id="vwebp"> <term><command>vwebp</command></term> <listitem> <para> decompress a WebP file and display it in a window. </para> <indexterm zone="libwebp vwebp"> <primary sortas="b-vwebp">vwebp</primary> </indexterm> </listitem> </varlistentry> <varlistentry id="webpmux"> <term><command>webpmux</command></term> <listitem> <para> creates animated WebP files from non-animated WebP images, extracts frames from animated WebP images, and manages XMP/EXIF metadata and ICC profile. </para> <indexterm zone="libwebp webpmux"> <primary sortas="b-webpmux">webpmux</primary> </indexterm> </listitem> </varlistentry> <varlistentry id="libwebp-lib"> <term><filename class="libraryfile">libwebp.so</filename></term> <listitem> <para> contains the API functions for WebP encoding and decoding. </para> <indexterm zone="libwebp libwebp-lib"> <primary sortas="c-libwebp">libwebp.so</primary> </indexterm> </listitem> </varlistentry> </variablelist> </sect2> </sect1>