mirror of
https://github.com/Zeckmathederg/glfs.git
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33555d9c0f
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@4152 af4574ff-66df-0310-9fd7-8a98e5e911e0
186 lines
6.4 KiB
XML
186 lines
6.4 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
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"http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
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<!ENTITY % general-entities SYSTEM "../../general.ent">
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%general-entities;
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<!ENTITY xvid-download-http "http://ed.gomez.free.fr/releases/xvid-&xvid-version;/xvidcore-&xvid-version;.tar.bz2">
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<!ENTITY xvid-download-ftp " ">
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<!ENTITY xvid-md5sum "1487c4dd4449aedeb695807467e69054">
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<!ENTITY xvid-size "541 KB">
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<!ENTITY xvid-buildsize "7.2 MB">
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<!ENTITY xvid-time "0.2 SBU">
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]>
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<sect1 id="xvid" xreflabel="XviD-&xvid-version;">
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<?dbhtml filename="xvid.html"?>
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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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<title>XviD-&xvid-version;</title>
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<indexterm zone="xvid">
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<primary sortas="a-XviD">XviD</primary>
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</indexterm>
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<sect2 role="package">
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<title>Introduction to XviD</title>
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<!--
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OpenDivX or Xvid?
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OpenDivX is a free implementation of the mpeg4-codec. Alas, the
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developers at ProjectMayo didn't gratefully release their actual source
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in compileable versions, so the displeasure of the users majority
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canalized into a new project named Xvid.
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Xvid development was interrupted in Autumn 2002 due to a code-theft
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the developers at Sigma design committed but it is continued now.
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For worse luck, OpenDivX and Xvid are using the same header file
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names (an issue that wouldn't be resolved easily) and function
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namespace, so you'll have to choose which one to use.
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I personally vote for Xvid, because the installation from sources
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is much smoother. If you use mencoder and transcode at the same time,
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you may want to choose different codecs for each.
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-->
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<para><application>XviD</application> is an MPEG-4
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compliant video CODEC.</para>
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<bridgehead renderas="sect3">Package Information</bridgehead>
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<itemizedlist spacing="compact">
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<listitem>
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<para>Download (HTTP): <ulink url="&xvid-download-http;"/></para>
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</listitem>
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<listitem>
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<para>Download (FTP): <ulink url="&xvid-download-ftp;"/></para>
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</listitem>
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<listitem>
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<para>Download MD5 sum: &xvid-md5sum;</para>
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</listitem>
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<listitem>
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<para>Download size: &xvid-size;</para>
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</listitem>
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<listitem>
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<para>Estimated disk space required: &xvid-buildsize;</para>
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</listitem>
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<listitem>
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<para>Estimated build time: &xvid-time;</para>
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</listitem>
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</itemizedlist>
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<bridgehead renderas="sect3">XviD Dependencies</bridgehead>
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<bridgehead renderas="sect4">Optional</bridgehead>
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<para><xref linkend="NASM"/></para>
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</sect2>
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<sect2 role="installation">
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<title>Installation of XviD</title>
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<para>Install <application>XviD</application> by running the following
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commands:</para>
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<screen><userinput>cd build/generic &&
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./configure --prefix=/usr &&
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make</userinput></screen>
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<para>This package does not come with a test suite.</para>
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<para>Now, as the <systemitem class="username">root</systemitem> user:</para>
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<screen role="root"><userinput>make install &&
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chmod -v 644 /usr/lib/libxvidcore.a &&
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ln -v -sf libxvidcore.so.4.0 /usr/lib/libxvidcore.so.4 &&
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ln -v -sf libxvidcore.so.4 /usr/lib/libxvidcore.so</userinput></screen>
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</sect2>
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<sect2 role="commands">
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<title>Command Explanations</title>
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<para><command>ln -v -sf libxvidcore.so.4 /usr/lib/libxvidcore.so</command>:
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This command makes applications linked against
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<filename class="libraryfile">.so</filename> names, link to
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<filename class="libraryfile">.so.<replaceable>MAJOR</replaceable></filename>.
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This ensures better binary compatibility, as
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<application>XviD</application> developers take care not changing the
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<replaceable>MAJOR</replaceable> number until there is an incompatible
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ABI change.</para>
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</sect2>
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<sect2 role="content">
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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 Library</segtitle>
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<segtitle>Installed Directories</segtitle>
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<seglistitem>
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<seg>None</seg>
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<seg>libxvidcore.[so,a]</seg>
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<seg>None</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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<?dbhtml list-presentation="table"?>
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<varlistentry id="libxvidcore">
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<term><filename class='libraryfile'>libxvidcore.[so,a]</filename></term>
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<listitem>
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<para>provides functions to encode and decode most
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MPEG-4 video data.</para>
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<indexterm zone="xvid libxvidcore">
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<primary sortas="c-libxvidcore">libxvidcore.[so,a]</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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</variablelist>
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<!--
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<para>Following features of MPEG-4 are supported:</para>
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<para><emphasis>I, P Frame encoding</emphasis></para>
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<para>I-Frames are image frames, while P-Frames are Pattern Frames.
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Image Frames contain full images. P-Frames contain patterns of what changes in
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the image, thusly saving a lot of space.</para>
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<para><emphasis>PMVFast and EPZS with diamond a sqare pattern motion
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estimation</emphasis></para>
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<para>Fast Motion detection that can refer a square or diamond
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shaped pattern to different directions.</para>
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<para><emphasis>inter4v mode</emphasis></para>
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<para>Fast interpolation ability.</para>
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<para><emphasis>fullpixel and halfpixel precision</emphasis></para>
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<para>Even halfpixel movements can be encoded. Better precision
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results in better compression at better quality.</para>
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<para><emphasis>both MPEG-4 and H263 quantizations</emphasis></para>
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<para>MPEG-4 is the standard DivX was derived from. H263 is a
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slightly changed subset of that standard made by Microsoft. Quantization
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means to map the quantity of color values to numbers.</para>
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<para><emphasis>custom quant matrices</emphasis></para>
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<para>The quantization can be done using custom matrices,
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possibly giving better results if the matrix is made to suit the video
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data. Every normal user should be fine with the default matrix that comes
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with <application>XviD</application>.</para>
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<para><emphasis>Adaptive quantization / Luminance masking</emphasis></para>
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<para>Qantization and Luminance masking are variant, depending
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on the input material, therefore providing better results on dark or very
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contrasting images.</para>
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-->
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</sect2>
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</sect1>
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