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ac789c067e
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@3597 af4574ff-66df-0310-9fd7-8a98e5e911e0
181 lines
6.5 KiB
XML
181 lines
6.5 KiB
XML
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN"
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"http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
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<!ENTITY % general-entities SYSTEM "../../general.ent">
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%general-entities;
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<!ENTITY alsa-lib-download-http "&alsa-download-http;/lib/alsa-lib-&alsa-lib-version;.tar.bz2">
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<!ENTITY alsa-lib-download-ftp "&alsa-download-ftp;/lib/alsa-lib-&alsa-lib-version;.tar.bz2">
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<!ENTITY alsa-lib-md5sum "c677299ed39d069c9a4b6a999e34ffe7">
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<!ENTITY alsa-lib-size "682 KB">
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<!ENTITY alsa-lib-buildsize "34.2 MB (additional 11.4 MB to build and install docs)">
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<!ENTITY alsa-lib-time "0.56 SBU">
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]>
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<sect1 id="alsa-lib" xreflabel="ALSA Library-&alsa-lib-version;">
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<sect1info>
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<othername>$LastChangedBy$</othername>
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<date>$Date$</date>
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</sect1info>
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<?dbhtml filename="alsa-lib.html"?>
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<title>ALSA Library-&alsa-lib-version;</title>
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<indexterm zone="alsa-lib">
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<primary sortas="a-ALSA-Library">ALSA Library</primary></indexterm>
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<sect2>
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<title>Introduction to <application><acronym>ALSA</acronym>
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Library</application></title>
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<para>The <application><acronym>ALSA</acronym> Library</application> package
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contains the <acronym>ALSA</acronym> library. This is used by programs
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(including <application><acronym>ALSA</acronym> Utilities</application>)
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requiring access to the <acronym>ALSA</acronym> sound interface.</para>
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<sect3><title>Package information</title>
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<itemizedlist spacing='compact'>
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<listitem><para>Download (HTTP):
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<ulink url="&alsa-lib-download-http;"/></para></listitem>
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<listitem><para>Download (FTP):
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<ulink url="&alsa-lib-download-ftp;"/></para></listitem>
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<listitem><para>Download MD5 sum: &alsa-lib-md5sum;</para></listitem>
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<listitem><para>Download size: &alsa-lib-size;</para></listitem>
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<listitem><para>Estimated disk space required:
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&alsa-lib-buildsize;</para></listitem>
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<listitem><para>Estimated build time:
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&alsa-lib-time;</para></listitem></itemizedlist>
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</sect3>
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<sect3><title><application><acronym>ALSA</acronym> Library</application>
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dependencies</title>
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<sect4><title>Optional</title>
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<para><ulink url="http://jackit.sourceforge.net/">JACK</ulink> and
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<xref linkend="doxygen"/></para>
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</sect4>
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</sect3>
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</sect2>
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<sect2 id="alsa-lib-kernel">
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<title>Installation of <application><acronym>ALSA</acronym>
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Library</application>
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</title>
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<para>In the <quote>Sound</quote> section of the kernel configuration, edit
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<userinput>Advanced Linux Sound Architecture</userinput> options to match your
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audio hardware and disable deprecated <userinput>Open Sound System</userinput>.
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Recompile and install your new kernel.</para>
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<indexterm zone="alsa-lib alsa-lib-kernel">
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<primary sortas="d-ALSA">ALSA</primary></indexterm>
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<para>Install <application><acronym>ALSA</acronym> Library</application> by
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running the following commands:</para>
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<screen><userinput><command>./configure --enable-static &&
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make</command></userinput></screen>
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<para>Now, as the root user:</para>
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<screen><userinput role='root'><command>make install</command></userinput></screen>
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<para>If you have <application><acronym>JACK</acronym></application> installed
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and you wish to build the <application><acronym>JACK</acronym></application>
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<acronym>PCM</acronym> plugin library, run the following commands:</para>
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<screen><userinput><command>cd src/pcm/ext &&
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make jack</command></userinput></screen>
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<para>Now, as the root user:</para>
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<screen><userinput role='root'><command>make install-jack</command></userinput></screen>
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<para>Ensure the unprivileged user's current working directory is the root of
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the source tree:</para>
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<screen><userinput><command>cd ../../..</command></userinput></screen>
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<para>If you have <application>Doxygen</application> installed and you wish to
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build the library <acronym>API</acronym> documentation, run the following
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commands from the top-level directory of the source tree:</para>
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<screen><userinput><command>make doc</command></userinput></screen>
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<para>Now, as the root user:</para>
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<screen><userinput role='root'><command>install -v -d -m755 /usr/share/alsa/doc/html &&
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install -v -m644 doc/doxygen/html/* /usr/share/alsa/doc/html</command></userinput></screen>
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</sect2>
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<sect2>
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<title>Command explanations</title>
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<para><parameter>--enable-static</parameter>: This switch is used to enable
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building the static library because some programs link against it.</para>
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</sect2>
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<sect2>
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<title>Configuring <application><acronym>ALSA</acronym>
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Library</application></title>
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<sect3 id="alsa-lib-config"><title>Config files</title>
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<para><filename>~/.asoundrc</filename>,
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<filename>/etc/asound.conf</filename>,
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<filename>/usr/share/alsa/alsa.conf</filename> and
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<filename>/usr/share/alsa/{cards,pcm}/*.conf</filename></para>
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<indexterm zone="alsa-lib alsa-lib-config">
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<primary sortas="e-AA.asoundrc">~/.asoundrc</primary></indexterm>
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<indexterm zone="alsa-lib alsa-lib-config">
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<primary sortas="e-etc-asound.conf">/etc/asound.conf</primary></indexterm>
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<indexterm zone="alsa-lib alsa-lib-config"><primary
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sortas="e-usr-share-alsa-alsa.conf">/usr/share/alsa/alsa.conf</primary>
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</indexterm>
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<indexterm zone="alsa-lib alsa-lib-config"><primary
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sortas="e-usr-share-alsa-cards">/usr/share/alsa/{cards,pcm}/*.conf</primary>
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</indexterm>
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</sect3>
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<sect3><title>Configuration information</title>
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<para>The default <filename>alsa.conf</filename> is adequate for most
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installations. For extra functionality and/or advanced control of your sound
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device, you may need to create additional configuration files. For
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information on the available configuration parameters, including setup of the
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<application><acronym>JACK</acronym></application> <acronym>PCM</acronym>
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plugin, visit <ulink
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url="http://www.alsa-project.org/alsa-doc/doc-php/asoundrc.php"/>.</para>
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</sect3>
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</sect2>
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<sect2>
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<title>Contents</title>
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<segmentedlist>
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<segtitle>Installed Programs</segtitle>
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<segtitle>Installed Libraries</segtitle>
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<segtitle>Installed Directories</segtitle>
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<seglistitem>
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<seg>alsalisp and aserver</seg>
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<seg>libasound.[so,a] and optionally, libasound_module_pcm_jack.[so,a]</seg>
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<seg>/usr/include/alsa, /usr/lib/alsa-lib, /usr/share/alsa</seg>
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</seglistitem>
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</segmentedlist>
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<variablelist>
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<bridgehead renderas="sect3">Short Descriptions</bridgehead>
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<?dbfo list-presentation="list"?>
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<varlistentry id="libasound">
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<term><filename class='libraryfile'>libasound.[so,a]</filename></term>
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<listitem><para>provides <acronym>ALSA</acronym> functions for application
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programs.</para>
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<indexterm zone="alsa-lib libasound">
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<primary sortas="c-libasound">libasound.[so,a]</primary>
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</indexterm></listitem>
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</varlistentry>
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</variablelist>
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</sect2>
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</sect1>
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