source: multimedia/libdriv/faac.xml@ 222787b9

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Last change on this file since 222787b9 was 222787b9, checked in by Alexander E. Patrakov <alexander@…>, 14 years ago

Added FAAC

git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@7169 af4574ff-66df-0310-9fd7-8a98e5e911e0

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File size: 7.2 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 faac-download-http "http://downloads.sourceforge.net/faac/faac-&faac-version;.tar.gz">
8 <!ENTITY faac-download-ftp " ">
9 <!ENTITY faac-md5sum "1d7c019bd2dbb4f3101b8937ebc59cf6">
10 <!ENTITY faac-size "392 KB">
11 <!ENTITY faac-buildsize "33 MB">
12 <!ENTITY faac-time "0.55 SBU">
13]>
14
15<sect1 id="faac" xreflabel="FAAC-&faac-version;">
16 <?dbhtml filename="faac.html"?>
17
18 <sect1info>
19 <othername>$LastChangedBy: ag $</othername>
20 <date>$Date: 2007-12-13 16:04:40 +0500 (Чтв, 13 Дек 2007) $</date>
21 </sect1info>
22
23 <title>FAAC-&faac-version;</title>
24
25 <indexterm zone="faac">
26 <primary sortas="a-faac">faac</primary>
27 </indexterm>
28
29 <sect2 role="package">
30 <title>Introduction to FAAC</title>
31
32 <para><application>FAAC</application> is an encoder for a lossy sound
33 compression scheme specified in MPEG-2 Part 7 and MPEG-4 Part 3 standards
34 and known as Advanced Audio Coding (AAC). Such encoder is useful for
35 producing files that can be played back on iPod. Moreover, iPod does not
36 understand other sound compression schemes in video files.</para>
37
38 <bridgehead renderas="sect3">Package Information</bridgehead>
39 <itemizedlist spacing="compact">
40 <listitem>
41 <para>Download (HTTP): <ulink url="&faac-download-http;"/></para>
42 </listitem>
43 <listitem>
44 <para>Download (FTP): <ulink url="&faac-download-ftp;"/></para>
45 </listitem>
46 <listitem>
47 <para>Download MD5 sum: &faac-md5sum;</para>
48 </listitem>
49 <listitem>
50 <para>Download size: &faac-size;</para>
51 </listitem>
52 <listitem>
53 <para>Estimated disk space required: &faac-buildsize;</para>
54 </listitem>
55 <listitem>
56 <para>Estimated build time: &faac-time;</para>
57 </listitem>
58 </itemizedlist>
59
60 <bridgehead renderas="sect3">FAAC Dependencies</bridgehead>
61
62 <bridgehead renderas="sect4">Optional</bridgehead>
63 <para>libmp4v2 from
64 <ulink url="http://mpeg4ip.sourceforge.net/">mpeg4ip</ulink> (untested,
65 an internal version of the library is used if the external one
66 is not found).</para>
67
68 <para condition="html" role="usernotes">User Notes:
69 <ulink url="&blfs-wiki;/faac"/></para>
70
71 </sect2>
72
73 <sect2 role="installation">
74 <title>Installation of FAAC</title>
75
76 <para>Install <application>FAAC</application> by running the
77 following commands:</para>
78
79<screen><userinput>./bootstrap &amp;&amp;
80./configure --prefix=/usr &amp;&amp;
81make</userinput></screen>
82
83 <para>This package does not come with a test suite. However, one can test
84 its basic functionality with a sample WAV file. Encode the file:</para>
85
86<screen><userinput>./frontend/faac -o Front_Left.mp4 /usr/share/sounds/alsa/Front_Left.wav</userinput></screen>
87
88 <para>Then, decode the result with <xref linkend="faad2"/> and play back
89 the decoded file:</para>
90
91<screen><userinput>faad Front_Left.mp4
92aplay Front_Left.wav</userinput></screen>
93
94 <para><command>aplay</command> should identify the file as
95 "Signed 16 bit Little Endian, Rate 48000 Hz, Stereo", and you should hear
96 the words "front left".</para>
97
98 <para>Now, as the <systemitem class="username">root</systemitem> user:</para>
99
100<screen role="root"><userinput>make install</userinput></screen>
101
102 </sect2>
103
104 <sect2 role="commands">
105 <title>Command Explanations</title>
106
107 <para><command>./bootstrap</command>: This command runs GNU Autotools
108 and produces the <command>configure</command> script and some other files
109 that drive the further build.</para>
110
111 <para><option>--enable-drm</option>: This option is supposed to enable
112 support for encoding files for
113 <ulink url="http://www.drm.org/">Digital Radio Mondiale</ulink>, but
114 actually breaks the base functionality of the package (e.g., the resulting
115 <command>faac</command> program produces files that cannot be decoded
116 by <xref linkend="faad2"/>, even if compiled with DRM support).
117 Don't use it.</para>
118 </sect2>
119
120 <sect2>
121 <title>Other AAC encoders</title>
122
123 <para>The quality of <application>FAAC</application> is not up
124 to par with the currently best AAC encoders available. Also, it supports
125 only AAC, but not High Efficiency AAC (also known as aacPlus), which provides
126 better quality at low bitrates by means of using the
127 <quote>spectral band replication</quote> technology. There are the
128 following alternative programs for producing AAC and HE-AAC streams:</para>
129
130 <itemizedlist>
131 <listitem>
132 <para><ulink url="http://www.nero.com/eng/nero-aac-codec.html">Nero AAC Codec</ulink>:
133 available only in the binary form, a command-line AAC and HE-AAC encoder
134 for Linux is in the same archive as the Windows application.</para>
135 </listitem>
136 <listitem>
137 <para><ulink url="http://www.3gpp.org/ftp/Specs/html-info/26410.htm">3GPP Enhanced aacPlus general audio codec</ulink>:
138 available in the source form, can encode only HE-AAC up to 48 kbps
139 out of the box, but the maximum bitrate can be changed by editing
140 the tuning table in the
141 <filename>FloatFR_sbrenclib/src/sbr_main.c</filename> file.</para>
142 </listitem>
143 </itemizedlist>
144
145 <para>Note, however, that iPod supports only Low Complexity AAC profile,
146 which is the default in FAAC, but may not be the default in Nero AAC Encoder
147 and is completely unavailable in the 3GPP encoder.</para>
148
149 </sect2>
150 <sect2 role="content">
151 <title>Contents</title>
152
153 <segmentedlist>
154 <segtitle>Installed Program</segtitle>
155 <segtitle>Installed Libraries</segtitle>
156
157 <seglistitem>
158 <seg>faac</seg>
159 <seg>libfaac.{so,a} and libmp4v2.{so,a}</seg>
160 </seglistitem>
161 </segmentedlist>
162
163 <variablelist>
164 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
165 <?dbfo list-presentation="list"?>
166 <?dbhtml list-presentation="table"?>
167
168 <varlistentry id="faac-prog">
169 <term><command>faac</command></term>
170 <listitem>
171 <para>is a command-line AAC encoder.</para>
172 <indexterm zone="faac faac-prog">
173 <primary sortas="b-faac">faac</primary>
174 </indexterm>
175 </listitem>
176 </varlistentry>
177
178 <varlistentry id="libfaac">
179 <term><filename class='libraryfile'>libfaac.{so,a}</filename></term>
180 <listitem>
181 <para>this library contains functions for encoding AAC streams.</para>
182 <indexterm zone="faac libfaac">
183 <primary sortas="c-libfaac">libfaac.{so,a}</primary>
184 </indexterm>
185 </listitem>
186 </varlistentry>
187
188 <varlistentry id="libmp4v2">
189 <term><filename class='libraryfile'>libmp4v2.{so,a}</filename></term>
190 <listitem>
191 <para>this library contains functions for creating and manipulating MP4 files.</para>
192 <indexterm zone="faac libmp4v2">
193 <primary sortas="c-libmp4v2">libmp4v2.{so,a}</primary>
194 </indexterm>
195 </listitem>
196 </varlistentry>
197
198 </variablelist>
199
200 </sect2>
201
202</sect1>
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