<?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 libvpx-download-http "https://github.com/webmproject/libvpx/archive/v&libvpx-version;/libvpx-&libvpx-version;.tar.gz"> <!ENTITY libvpx-download-ftp " "> <!ENTITY libvpx-md5sum "6dbccca688886c66a216d7e445525bce"> <!ENTITY libvpx-size "5.1 MB"> <!ENTITY libvpx-buildsize "56 MB"> <!ENTITY libvpx-time "0.5 SBU (using parallelism=4)"> ]> <sect1 id="libvpx" xreflabel="libvpx-&libvpx-version;"> <?dbhtml filename="libvpx.html"?> <sect1info> <othername>$LastChangedBy$</othername> <date>$Date$</date> </sect1info> <title>libvpx-&libvpx-version;</title> <indexterm zone="libvpx"> <primary sortas="a-libvpx">libvpx</primary> </indexterm> <sect2 role="package"> <title>Introduction to libvpx</title> <para>This package, from the WebM project, provides the reference implementations of the VP8 Codec, used in most current html5 video, and of the next-generation VP9 Codec.</para> &lfs90_checked; <bridgehead renderas="sect3">Package Information</bridgehead> <itemizedlist spacing="compact"> <listitem> <para>Download (HTTP): <ulink url="&libvpx-download-http;"/></para> </listitem> <listitem> <para>Download (FTP): <ulink url="&libvpx-download-ftp;"/></para> </listitem> <listitem> <para>Download MD5 sum: &libvpx-md5sum;</para> </listitem> <listitem> <para>Download size: &libvpx-size;</para> </listitem> <listitem> <para>Estimated disk space required: &libvpx-buildsize;</para> </listitem> <listitem> <para>Estimated build time: &libvpx-time;</para> </listitem> </itemizedlist> <bridgehead renderas="sect3">libvpx Dependencies</bridgehead> <bridgehead renderas="sect4">Required</bridgehead> <para role="required"> <xref linkend="yasm"/> or <xref role="nodep" linkend="nasm"/>, and <!-- see http://lists.linuxfromscratch.org/pipermail/blfs-book/2019-August/083164.html and references therein --> <xref linkend="which"/> (so <command>configure</command> can find yasm) </para> <bridgehead renderas="sect4">Optional</bridgehead> <para role="optional"> <xref linkend="doxygen"/> and <xref linkend="php"/> (to build the documentation) </para> <para condition="html" role="usernotes">User Notes: <ulink url="&blfs-wiki;/libvpx"/></para> </sect2> <sect2 role="installation"> <title>Installation of libvpx</title> <para>Install <application>libvpx</application> by running the following commands:</para> <screen><userinput>sed -i 's/cp -p/cp/' build/make/Makefile && mkdir libvpx-build && cd libvpx-build && ../configure --prefix=/usr \ --enable-shared \ --disable-static && make</userinput></screen> <para>This package does not come with a test suite.</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>sed ... </command>: This command corrects ownership and permissions of installed files.</para> <para><command>mkdir libvpx-build && cd libvpx-build</command>: The <application>libvpx</application> developers recommend building in a dedicated build directory.</para> <para><option>--disable-vp8</option>: This switch prevents building of VP8 codec support.</para> <para><option>--disable-vp9</option>: This switch prevents building of VP9 codec support.</para> <xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="../../xincludes/static-libraries.xml"/> </sect2> <sect2 role="content"> <title>Contents</title> <segmentedlist> <segtitle>Installed Programs</segtitle> <segtitle>Installed Libraries</segtitle> <segtitle>Installed Directories</segtitle> <seglistitem> <seg>vpxdec and vpxenc</seg> <seg>libvpx.so</seg> <seg>/usr/include/vpx</seg> </seglistitem> </segmentedlist> <variablelist> <bridgehead renderas="sect3">Short Descriptions</bridgehead> <?dbfo list-presentation="list"?> <?dbhtml list-presentation="table"?> <varlistentry id="vpxdec"> <term><command>vpxdec</command></term> <listitem> <para>is the WebM Project VP8 and VP9 decoder.</para> <indexterm zone="libvpx vpxdec"> <primary sortas="b-vpxdec">vpxdec</primary> </indexterm> </listitem> </varlistentry> <varlistentry id="vpxenc"> <term><command>vpxenc</command></term> <listitem> <para>is the WebM project VP8 and VP9 encoder.</para> <indexterm zone="libvpx vpxenc"> <primary sortas="b-vpxenc">vpxenc</primary> </indexterm> </listitem> </varlistentry> <varlistentry id="libvpx-lib"> <term><filename class='libraryfile'>libvpx.so</filename></term> <listitem> <para>provides functions to use the VP8 and VP9 video codecs.</para> <indexterm zone="libvpx libvpx-lib"> <primary sortas="c-libvpx">libvpx.so</primary> </indexterm> </listitem> </varlistentry> </variablelist> </sect2> </sect1>