source: general/graphlib/libwebp.xml@ d9a7451

10.1 11.0 ken/refactor-virt lazarus qt5new trunk xry111/git-date xry111/git-date-for-trunk xry111/git-date-test
Last change on this file since d9a7451 was d9a7451, checked in by Douglas R. Reno <renodr@…>, 9 months ago

Update to cmake-3.19.4
Update to parted-3.4
Update to libwebp-1.2.0
Update to mesa-20.3.4

git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@24168 af4574ff-66df-0310-9fd7-8a98e5e911e0

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File size: 7.6 KB
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1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3 "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4 <!ENTITY % general-entities SYSTEM "../../general.ent">
5 %general-entities;
6
7 <!ENTITY libwebp-download-http "http://downloads.webmproject.org/releases/webp/libwebp-&libwebp-version;.tar.gz">
8 <!ENTITY libwebp-download-ftp " ">
9 <!ENTITY libwebp-md5sum "978087605c288fd6c0ab7c4d11e903ae">
10 <!ENTITY libwebp-size "3.9 MB">
11 <!ENTITY libwebp-buildsize "50 MB">
12 <!ENTITY libwebp-time "0.3 SBU">
13]>
14
15<sect1 id="libwebp" xreflabel="libwebp-&libwebp-version;">
16 <?dbhtml filename="libwebp.html"?>
17
18 <sect1info>
19 <othername>$LastChangedBy$</othername>
20 <date>$Date$</date>
21 </sect1info>
22
23 <title>libwebp-&libwebp-version;</title>
24
25 <indexterm zone="libwebp">
26 <primary sortas="a-libwebp">libwebp</primary>
27 </indexterm>
28
29 <sect2 role="package">
30 <title>Introduction to libwebp</title>
31
32 <para>
33 The <application>libwebp</application> package contains a library
34 and support programs to encode and decode images in WebP format.
35 </para>
36
37 &lfs10_checked;
38
39 <bridgehead renderas="sect3">Package Information</bridgehead>
40 <itemizedlist spacing="compact">
41 <listitem>
42 <para>
43 Download (HTTP): <ulink url="&libwebp-download-http;"/>
44 </para>
45 </listitem>
46 <listitem>
47 <para>
48 Download (FTP): <ulink url="&libwebp-download-ftp;"/>
49 </para>
50 </listitem>
51 <listitem>
52 <para>
53 Download MD5 sum: &libwebp-md5sum;
54 </para>
55 </listitem>
56 <listitem>
57 <para>
58 Download size: &libwebp-size;
59 </para>
60 </listitem>
61 <listitem>
62 <para>
63 Estimated disk space required: &libwebp-buildsize;
64 </para>
65 </listitem>
66 <listitem>
67 <para>
68 Estimated build time: &libwebp-time;
69 </para>
70 </listitem>
71 </itemizedlist>
72
73 <bridgehead renderas="sect3">libwebp Dependencies</bridgehead>
74
75 <bridgehead renderas="sect4">Recommended</bridgehead>
76 <para role="recommended">
77 <xref linkend="libjpeg"/>,
78 <xref linkend="libpng"/>,
79 <xref linkend="libtiff"/>, and
80 <xref linkend="sdl"/> (for improved 3D Acceleration)
81 </para>
82
83 <bridgehead renderas="sect4">Optional</bridgehead>
84 <para role="optional">
85 <xref linkend="freeglut"/> and
86 <xref linkend="giflib"/>
87 </para>
88
89 <para condition="html" role="usernotes">
90 User Notes: <ulink url="&blfs-wiki;/libwebp"/>
91 </para>
92 </sect2>
93
94 <sect2 role="installation">
95 <title>Installation of libwebp</title>
96
97 <para>
98 Install <application>libwebp</application> by running the following
99 commands:
100 </para>
101
102<screen><userinput>./configure --prefix=/usr \
103 --enable-libwebpmux \
104 --enable-libwebpdemux \
105 --enable-libwebpdecoder \
106 --enable-libwebpextras \
107 --enable-swap-16bit-csp \
108 --disable-static &amp;&amp;
109make</userinput></screen>
110
111 <para>
112 This package does not come with a test suite.
113 </para>
114
115 <para>
116 Now, as the <systemitem class="username">root</systemitem> user:
117 </para>
118
119<screen role="root"><userinput>make install</userinput></screen>
120
121 </sect2>
122
123 <sect2 role="commands">
124 <title>Command Explanations</title>
125
126
127 <para>
128 <parameter>--enable-swap-16bit-csp</parameter>: This switch enables byte
129 swap for 16 bit colorspaces.
130 </para>
131
132 <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
133 href="../../xincludes/static-libraries.xml"/>
134
135 </sect2>
136
137 <sect2 role="content">
138 <title>Contents</title>
139
140 <segmentedlist>
141 <segtitle>Installed Programs</segtitle>
142 <segtitle>Installed Library</segtitle>
143 <segtitle>Installed Directory</segtitle>
144
145 <seglistitem>
146 <seg>
147 cwebp,
148 dwebp,
149 gif2webp,
150 img2webp,
151 vwebp,
152 webpinfo,
153 and webpmux
154 </seg>
155 <seg>
156 libwebpdecoder.so,
157 libwebpdemux.so,
158 libwebpmux.so,
159 and libwebp.so
160 </seg>
161 <seg>
162 /usr/include/webp
163 </seg>
164 </seglistitem>
165 </segmentedlist>
166
167 <variablelist>
168 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
169 <?dbfo list-presentation="list"?>
170 <?dbhtml list-presentation="table"?>
171
172 <varlistentry id="cwebp">
173 <term><command>cwebp</command></term>
174 <listitem>
175 <para>
176 compresses an image using the WebP format.
177 </para>
178 <indexterm zone="libwebp cwebp">
179 <primary sortas="b-cwebp">cwebp</primary>
180 </indexterm>
181 </listitem>
182 </varlistentry>
183
184 <varlistentry id="dwebp">
185 <term><command>dwebp</command></term>
186 <listitem>
187 <para>
188 decompresses WebP files into PNG, PAM, PPM or PGM images.
189 </para>
190 <indexterm zone="libwebp dwebp">
191 <primary sortas="b-dwebp">dwebp</primary>
192 </indexterm>
193 </listitem>
194 </varlistentry>
195
196 <varlistentry id="gif2webp">
197 <term><command>gif2webp</command></term>
198 <listitem>
199 <para>
200 converts a GIF image to a WebP image.
201 </para>
202 <indexterm zone="libwebp gif2webp">
203 <primary sortas="b-gif2webp">gif2webp</primary>
204 </indexterm>
205 </listitem>
206 </varlistentry>
207
208 <varlistentry id="img2webp">
209 <term><command>img2webp</command></term>
210 <listitem>
211 <para>
212 creates an animated WebP file from a sequence of input images.
213 </para>
214 <indexterm zone="libwebp img2webp">
215 <primary sortas="b-img2webp">img2webp</primary>
216 </indexterm>
217 </listitem>
218 </varlistentry>
219
220 <varlistentry id="vwebp">
221 <term><command>vwebp</command></term>
222 <listitem>
223 <para>
224 decompresses a WebP file and displays it in a window.
225 </para>
226 <indexterm zone="libwebp vwebp">
227 <primary sortas="b-vwebp">vwebp</primary>
228 </indexterm>
229 </listitem>
230 </varlistentry>
231
232 <varlistentry id="webpinfo">
233 <term><command>webpinfo</command></term>
234 <listitem>
235 <para>
236 prints out the cunk level structure of WebP files along with
237 performing basic integrity checks.
238 </para>
239 <indexterm zone="libwebp webpinfo">
240 <primary sortas="b-webpinfo">webpinfo</primary>
241 </indexterm>
242 </listitem>
243 </varlistentry>
244
245 <varlistentry id="webpmux">
246 <term><command>webpmux</command></term>
247 <listitem>
248 <para>
249 creates animated WebP files from non-animated WebP images, extracts
250 frames from animated WebP images, and manages XMP/EXIF metadata and
251 ICC profile.
252 </para>
253 <indexterm zone="libwebp webpmux">
254 <primary sortas="b-webpmux">webpmux</primary>
255 </indexterm>
256 </listitem>
257 </varlistentry>
258
259 <varlistentry id="libwebp-lib">
260 <term><filename class="libraryfile">libwebp.so</filename></term>
261 <listitem>
262 <para>
263 contains the API functions for WebP encoding and decoding.
264 </para>
265 <indexterm zone="libwebp libwebp-lib">
266 <primary sortas="c-libwebp">libwebp.so</primary>
267 </indexterm>
268 </listitem>
269 </varlistentry>
270
271 </variablelist>
272
273 </sect2>
274
275</sect1>
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