source: multimedia/libdriv/faad2.xml@ 8b7be7b6

<?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 faad2-download-http "http://downloads.sourceforge.net/faac/faad2-&faad2-version;.tar.gz">
  <!ENTITY faad2-download-ftp  " ">
  <!ENTITY faad2-md5sum        "74e92df40c270f216a8305fc87603c8a">
  <!ENTITY faad2-size          "820 KB">
  <!ENTITY faad2-buildsize     "15 MB (without media player plugins)">
  <!ENTITY faad2-time          "0.25 SBU (without media player plugins)">
]>

<sect1 id="faad2" xreflabel="FAAD2-&faad2-version;">
  <?dbhtml filename="faad2.html"?>

  <sect1info>
    <othername>$LastChangedBy$</othername>
    <date>$Date$</date>
  </sect1info>

  <title>FAAD2-&faad2-version;</title>

  <indexterm zone="faad2">
    <primary sortas="a-faad2">faad2</primary>
  </indexterm>

  <sect2 role="package">
    <title>Introduction to FAAD2</title>

    <para><application>FAAD2</application> is a decoder for a lossy sound
    compression scheme specified in MPEG-2 Part 7 and MPEG-4 Part 3 standards
    and known as Advanced Audio Coding (AAC).</para>

    <bridgehead renderas="sect3">Package Information</bridgehead>
    <itemizedlist spacing="compact">
      <listitem>
        <para>Download (HTTP): <ulink url="&faad2-download-http;"/></para>
      </listitem>
      <listitem>
        <para>Download (FTP): <ulink url="&faad2-download-ftp;"/></para>
      </listitem>
      <listitem>
        <para>Download MD5 sum: &faad2-md5sum;</para>
      </listitem>
      <listitem>
        <para>Download size: &faad2-size;</para>
      </listitem>
      <listitem>
        <para>Estimated disk space required: &faad2-buildsize;</para>
      </listitem>
      <listitem>
        <para>Estimated build time: &faad2-time;</para>
      </listitem>
    </itemizedlist>

    <bridgehead renderas="sect3">Additional Downloads</bridgehead>
      <itemizedlist spacing="compact">
        <listitem>
          <para>Sample AAC file: <ulink url="http://www.nch.com.au/acm/sample.aac"/> (7 KB)</para>
        </listitem>
    </itemizedlist>
                                        
    <bridgehead renderas="sect3">FAAD2 Dependencies</bridgehead>

    <bridgehead renderas="sect4">Optional</bridgehead>
    <para role="optional"><xref linkend="xmms"/>, and
    <ulink url="http://mpeg4ip.sourceforge.net/">mpeg4ip</ulink> (both untested).
    If these packages are found, AAC plugins are built for the corresponding
    media players.</para>

    <para condition="html" role="usernotes">User Notes:
    <ulink url="&blfs-wiki;/faad2"/></para>

  </sect2>

  <sect2 role="installation">
    <title>Installation of FAAD2</title>

    <para>Install <application>FAAD2</application> by running the
    following commands:</para>

<screen><userinput>./bootstrap &amp;&amp;
./configure --prefix=/usr &amp;&amp;
make</userinput></screen>

    <para>This package does not come with a test suite. However, one can test
    its basic functionality with a sample AAC file. Decode the file:</para>
    
<screen><userinput>./frontend/faad -o sample.wav ../sample.aac</userinput></screen>

    <para>This should display a copyright message and the following
    information about the sample file:</para>

<screen>sample.aac file info:
ADTS, 4.608 sec, 13 kbps, 16000 Hz

  ---------------------
 | Config:  2 Ch       |
  ---------------------
 | Ch |    Position    |
  ---------------------
 | 00 | Left front     |
 | 01 | Right front    |
  ---------------------</screen>

    <para>Play the result:</para>

<screen><userinput>aplay sample.wav</userinput></screen>

    <para><command>aplay</command> should identify the file as
    "Signed 16 bit Little Endian, Rate 16000 Hz, Stereo", and you should hear
    some piano notes.</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><command>./bootstrap</command>: This command runs GNU Autotools
    and produces the <command>configure</command> script and some other files
    that drive the further build.</para>

    <para><option>--with-drm</option>: This option is supposed to enable
    support for decoding
    <ulink url="http://www.drm.org/">Digital Radio Mondiale</ulink>, but
    actually breaks the base functionality of the package (e.g., the resulting
    <command>faad</command> program cannot decode the sample AAC file
    linked above). Don't use it.</para>
  </sect2>

  <sect2 role="content">
    <title>Contents</title>

    <segmentedlist>
      <segtitle>Installed Program</segtitle>
      <segtitle>Installed Libraries</segtitle>

      <seglistitem>
        <seg>faad</seg>
        <seg>libfaad.{so,a}</seg>
      </seglistitem>
    </segmentedlist>

    <variablelist>
      <bridgehead renderas="sect3">Short Descriptions</bridgehead>
      <?dbfo list-presentation="list"?>
      <?dbhtml list-presentation="table"?>

      <varlistentry id="faad-prog">
        <term><command>faad</command></term>
        <listitem>
          <para>is a command-line utility for decoding AAC and MP4 files.</para>
          <indexterm zone="faad2 faad-prog">
            <primary sortas="b-faad">faad</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="libfaad">
        <term><filename class='libraryfile'>libfaad.{so,a}</filename></term>
        <listitem>
          <para>this library contains functions for decoding AAC streams.</para>
          <indexterm zone="faad2 libfaad">
            <primary sortas="c-libfaad">libfaad.{so,a}</primary>
          </indexterm>
        </listitem>
      </varlistentry>

    </variablelist>

  </sect2>

</sect1>