[65df2435] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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[6732c094] | 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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[48b7295] | 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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[06a5391] | 6 |
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[dc40cb9] | 7 | <!ENTITY liba52-download-http
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| 8 | "http://liba52.sourceforge.net/files/a52dec-&liba52-version;.tar.gz">
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[48b7295] | 9 | <!ENTITY liba52-download-ftp " ">
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[06a5391] | 10 | <!ENTITY liba52-md5sum "caa9f5bc44232dc8aeea773fea56be80">
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[48b7295] | 11 | <!ENTITY liba52-size "236 KB">
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[64eb1e84] | 12 | <!ENTITY liba52-buildsize "2.5 MB">
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| 13 | <!ENTITY liba52-time "less than 0.1 SBU">
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[48b7295] | 14 | ]>
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| 15 |
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[fd680fb] | 16 | <sect1 id="liba52" xreflabel="liba52-&liba52-version;">
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[65df2435] | 17 | <?dbhtml filename="liba52.html"?>
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| 18 |
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| 19 | <sect1info>
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| 20 | <date>$Date$</date>
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| 21 | </sect1info>
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| 22 |
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| 23 | <title>Liba52-&liba52-version;</title>
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| 24 |
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| 25 | <indexterm zone="liba52">
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| 26 | <primary sortas="a-Liba52">Liba52</primary>
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| 27 | </indexterm>
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| 28 |
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| 29 | <sect2 role="package">
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| 30 | <title>Introduction to Liba52</title>
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| 31 |
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[2eeb8695] | 32 | <para>
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| 33 | <application>liba52</application> is a free library for decoding
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| 34 | ATSC A/52 (also known as AC-3) streams. The A/52 standard is used
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| 35 | in a variety of applications, including digital television and DVD.
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| 36 | </para>
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[65df2435] | 37 |
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[7b2fed0f] | 38 | &lfs110a_checked;
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[e355f3c6] | 39 |
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[65df2435] | 40 | <bridgehead renderas="sect3">Package Information</bridgehead>
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| 41 | <itemizedlist spacing="compact">
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| 42 | <listitem>
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[2eeb8695] | 43 | <para>
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| 44 | Download (HTTP): <ulink url="&liba52-download-http;"/>
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| 45 | </para>
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[65df2435] | 46 | </listitem>
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| 47 | <listitem>
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[2eeb8695] | 48 | <para>
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| 49 | Download (FTP): <ulink url="&liba52-download-ftp;"/>
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| 50 | </para>
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[65df2435] | 51 | </listitem>
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| 52 | <listitem>
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[2eeb8695] | 53 | <para>
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| 54 | Download MD5 sum: &liba52-md5sum;
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| 55 | </para>
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[65df2435] | 56 | </listitem>
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| 57 | <listitem>
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[2eeb8695] | 58 | <para>
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| 59 | Download size: &liba52-size;
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| 60 | </para>
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[65df2435] | 61 | </listitem>
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| 62 | <listitem>
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[2eeb8695] | 63 | <para>
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| 64 | Estimated disk space required: &liba52-buildsize;
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| 65 | </para>
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[65df2435] | 66 | </listitem>
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| 67 | <listitem>
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[2eeb8695] | 68 | <para>
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| 69 | Estimated build time: &liba52-time;
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| 70 | </para>
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[65df2435] | 71 | </listitem>
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| 72 | </itemizedlist>
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| 73 |
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[dc40cb9] | 74 | <bridgehead renderas="sect4">Optional</bridgehead>
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[47274444] | 75 | <para role="optional">
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| 76 | <ulink url="http://cr.yp.to/djbfft.html">djbfft</ulink>
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| 77 | </para>
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[dc40cb9] | 78 |
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[0e2aa08] | 79 | <para condition="html" role="usernotes">User Notes:
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| 80 | <ulink url="&blfs-wiki;/liba52"/></para>
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[65df2435] | 81 | </sect2>
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| 82 |
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| 83 | <sect2 role="installation">
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| 84 | <title>Installation of Liba52</title>
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| 85 |
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[2eeb8695] | 86 | <para>
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| 87 | Install <application>liba52</application> by running the
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| 88 | following commands:
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| 89 | </para>
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[65df2435] | 90 |
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[62e5e8f] | 91 | <screen><userinput>./configure --prefix=/usr \
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| 92 | --mandir=/usr/share/man \
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| 93 | --enable-shared \
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| 94 | --disable-static \
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[f4302700] | 95 | CFLAGS="${CFLAGS:--g -O2} $([ $(uname -m) = x86_64 ] && echo -fPIC)" &&
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[65df2435] | 96 | make</userinput></screen>
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| 97 |
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[2eeb8695] | 98 | <para>
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| 99 | To test the results, issue: <command>make check</command>.
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| 100 | </para>
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[4d32631] | 101 |
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[2eeb8695] | 102 | <para>
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| 103 | Now, as the <systemitem class="username">root</systemitem>
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| 104 | user:
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| 105 | </para>
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[65df2435] | 106 |
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| 107 | <screen role="root"><userinput>make install &&
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[dc40cb9] | 108 | cp liba52/a52_internal.h /usr/include/a52dec &&
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[64eb1e84] | 109 | install -v -m644 -D doc/liba52.txt \
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[65df2435] | 110 | /usr/share/doc/liba52-&liba52-version;/liba52.txt</userinput></screen>
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[dc40cb9] | 111 | </sect2>
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| 112 |
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| 113 | <sect2 role="commands">
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| 114 | <title>Command Explanations</title>
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| 115 |
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[2eeb8695] | 116 | <para>
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| 117 | <parameter>CFLAGS="-g -O2 ...</parameter>: This sets CFLAGS to -g -O2
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| 118 | (which is the default) but then on x86_64 adds -fPIC. This is needed to
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| 119 | compile <application>liba52</application> on x86_64.
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| 120 | </para>
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[65df2435] | 121 |
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[c33c599] | 122 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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| 123 | href="../../xincludes/static-libraries.xml"/>
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[dc40cb9] | 124 |
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[2eeb8695] | 125 | <para>
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| 126 | <command>cp liba52/a52_internal.h ...</command>: Copying this header
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| 127 | file into /usr/include/a52dec allows some other programs (such as
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| 128 | <application>xine-lib</application>) to compile and link against a system
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| 129 | installed <application>liba52</application>.
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| 130 | </para>
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[65df2435] | 131 | </sect2>
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| 132 |
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| 133 | <sect2 role="content">
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| 134 | <title>Contents</title>
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| 135 |
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| 136 | <segmentedlist>
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| 137 | <segtitle>Installed Programs</segtitle>
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| 138 | <segtitle>Installed Library</segtitle>
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| 139 | <segtitle>Installed Directories</segtitle>
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| 140 |
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| 141 | <seglistitem>
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| 142 | <seg>a52dec and extract_a52</seg>
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[dc40cb9] | 143 | <seg>liba52.so</seg>
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| 144 | <seg>/usr/include/a52dec and
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| 145 | /usr/share/doc/liba52-&liba52-version;</seg>
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[65df2435] | 146 | </seglistitem>
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| 147 | </segmentedlist>
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| 148 |
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| 149 | <variablelist>
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| 150 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 151 | <?dbfo list-presentation="list"?>
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| 152 | <?dbhtml list-presentation="table"?>
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| 153 |
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| 154 | <varlistentry id="a52dec">
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| 155 | <term><command>a52dec</command></term>
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| 156 | <listitem>
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[2eeb8695] | 157 | <para>
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[4c24eb0a] | 158 | plays ATSC A/52 audio streams
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[2eeb8695] | 159 | </para>
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[65df2435] | 160 | <indexterm zone="liba52 a52dec">
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| 161 | <primary sortas="b-a52dec">a52dec</primary>
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| 162 | </indexterm>
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| 163 | </listitem>
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| 164 | </varlistentry>
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| 165 |
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| 166 | <varlistentry id="extract_a52">
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| 167 | <term><command>extract_a52</command></term>
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| 168 | <listitem>
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[2eeb8695] | 169 | <para>
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[4c24eb0a] | 170 | extracts ATSC A/52 audio from an MPEG stream
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[2eeb8695] | 171 | </para>
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[65df2435] | 172 | <indexterm zone="liba52 extract_a52">
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| 173 | <primary sortas="b-extract_a52">extract_a52</primary>
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| 174 | </indexterm>
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| 175 | </listitem>
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| 176 | </varlistentry>
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| 177 |
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| 178 | <varlistentry id="liba52-lib">
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[4c24eb0a] | 179 | <term><filename class="libraryfile">liba52.so</filename></term>
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[65df2435] | 180 | <listitem>
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[2eeb8695] | 181 | <para>
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[4c24eb0a] | 182 | provides functions for the programs dealing with ATSC A/52 streams
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[2eeb8695] | 183 | </para>
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[65df2435] | 184 | <indexterm zone="liba52 liba52-lib">
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[dc40cb9] | 185 | <primary sortas="c-liba52">liba52.so</primary>
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[65df2435] | 186 | </indexterm>
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| 187 | </listitem>
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| 188 | </varlistentry>
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| 189 | </variablelist>
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| 190 | </sect2>
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[4c24eb0a] | 191 |
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[d98b0ca] | 192 | </sect1>
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