mirror of
https://github.com/Zeckmathederg/glfs.git
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f29d6eee6e
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@4163 af4574ff-66df-0310-9fd7-8a98e5e911e0
255 lines
9.5 KiB
XML
255 lines
9.5 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 ffmpeg-download-http "http://prdownloads.sourceforge.net/ffmpeg/ffmpeg-&ffmpeg-version;.tar.gz">
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<!ENTITY ffmpeg-download-ftp " ">
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<!ENTITY ffmpeg-md5sum "ea5587e3c66d50b1503b82ac4179c303">
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<!ENTITY ffmpeg-size "1.6 MB">
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<!ENTITY ffmpeg-buildsize "50 MB">
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<!ENTITY ffmpeg-time "0.9 SBU">
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]>
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<sect1 id="ffmpeg" xreflabel="FFmpeg-&ffmpeg-version;">
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<?dbhtml filename="ffmpeg.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>FFmpeg-&ffmpeg-version;</title>
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<indexterm zone="ffmpeg">
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<primary sortas="a-FFmpeg">FFmpeg</primary>
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</indexterm>
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<sect2 role="package">
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<title>Introduction to FFmpeg</title>
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<para><application>FFmpeg</application> is a solution to record, convert and
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stream audio and video. It is a very fast video and audio converter and it can
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also acquire from a live audio/video source. Designed to be intuitive, the
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command-line interface (<command>ffmpeg</command>) tries to figure out all the
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parameters, when possible. <application>FFmpeg</application> can also convert
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from any sample rate to any other, and resize video on the fly with a high
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quality polyphase filter. <application>FFmpeg</application> can use a
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video4linux compatible video source and any Open Sound System audio
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source.</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="&ffmpeg-download-http;"/></para>
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</listitem>
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<listitem>
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<para>Download (FTP): <ulink url="&ffmpeg-download-ftp;"/></para>
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</listitem>
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<listitem>
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<para>Download MD5 sum: &ffmpeg-md5sum;</para>
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</listitem>
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<listitem>
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<para>Download size: &ffmpeg-size;</para>
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</listitem>
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<listitem>
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<para>Estimated disk space required: &ffmpeg-buildsize;</para>
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</listitem>
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<listitem>
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<para>Estimated build time: &ffmpeg-time;</para>
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</listitem>
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</itemizedlist>
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<bridgehead renderas="sect3">FFmpeg Dependencies</bridgehead>
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<bridgehead renderas="sect4">Optional</bridgehead>
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<para><xref linkend="libvorbis"/>,
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<xref linkend="lame"/>,
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<xref linkend="imlib2"/>,
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X (<xref linkend="xfree86"/> or <xref linkend="xorg"/>),
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<xref linkend="sdl"/>,
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<xref linkend="freetype2"/>,
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<xref linkend="mplayer"/> (for the shared post-processing library),
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<ulink url="http://sourceforge.net/projects/faac">FAAC</ulink>,
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<ulink url="http://sourceforge.net/projects/faac">FAAD2</ulink> and
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<xref linkend="tex"/> (to build HTML documentation)</para>
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</sect2>
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<sect2 role="installation">
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<title>Installation of FFmpeg</title>
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<para>Install <application>FFmpeg</application> by running the following
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commands:</para>
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<note>
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<para>Review the <filename>doc/optimization.txt</filename> file in the
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source tree for information about optimizing the build.</para>
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</note>
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<screen><userinput>sed -i -e "s/static uint64/const uint64/" \
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libavcodec/liba52/resample_mmx.c &&
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./configure --prefix=/usr --enable-shared \
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--enable-pthreads --disable-ffplay &&
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make</userinput></screen>
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<para>If you have <application>TeX</application> installed, the man pages
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and documentation were built during the <command>make</command> process.
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Skip to the <systemitem class="username">root</systemitem> user installation
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steps. If you do not have <application>TeX</application> installed, use the
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following command to build the man pages:</para>
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<screen><userinput>make -C doc {ffmpeg,ffserver,ffplay}.1</userinput></screen>
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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</userinput></screen>
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<para>If you have <application>TeX</application> installed (which caused
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the HTML documentation to be built earlier), install the documentation by
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issuing the following commands as the <systemitem
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class="username">root</systemitem> user:</para>
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<screen role="root"><userinput>install -v -m755 -d /usr/share/doc/ffmpeg-&ffmpeg-version; &&
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install -v -m644 doc/*.html /usr/share/doc/ffmpeg-&ffmpeg-version;</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>sed -i -e "s/static uint64/const uint64/"
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libavcodec/liba52/resample_mmx.c</command>: This command fixes an issue
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on machines with MMX capability and use <application>GCC</application>-3.4.x
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to compile in A52 support using the <option>--enable-a52</option> parameter
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passed to the <command>configure</command> script.</para>
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<para><parameter>--enable-shared</parameter>: This switch is needed to
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build the <filename class="libraryfile">libavcodec</filename> and
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<filename class="libraryfile">libavformat</filename> shared
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libraries.</para>
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<para><parameter>--enable-pthreads</parameter>: This switch enables the
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build to link against the Posix threads library.</para>
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<para><parameter>--disable-ffplay</parameter>: Only installs the server part.
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<command>ffplay</command> requires <application>X</application> for
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building. Remove this option if <application>X</application> is
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installed.</para>
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<para><option>--enable-<replaceable>[codec]</replaceable></option>: Review
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the available options and codecs using the
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<command>./configure --help</command> command.</para>
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</sect2>
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<sect2 role="configuration">
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<title>Configuring FFmpeg</title>
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<sect3 id="ffmpeg-config">
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<title>Config Files</title>
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<para><filename>/etc/ffserver.conf</filename> and
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<filename>~/.ffmpeg/ffserver-config</filename></para>
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<indexterm zone="ffmpeg ffmpeg-config">
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<primary sortas="e-AA.ffmpeg-ffserver-config">~/.ffmpeg/ffserver-config</primary>
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</indexterm>
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<indexterm zone="ffmpeg ffmpeg-config">
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<primary sortas="e-etc-ffserver.conf">/etc/ffserver.conf</primary>
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</indexterm>
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<para>You'll find a sample ffserver configuration file at
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<ulink url="http://ffmpeg.sourceforge.net/sample.html"/> (also
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<filename>doc/ffserver.conf</filename> in the source tree).</para>
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</sect3>
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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 Libraries</segtitle>
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<segtitle>Installed Directories</segtitle>
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<seglistitem>
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<seg>ffmpeg, ffserver, and optionally, ffplay</seg>
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<seg>libavcodec.so, libavformat.so, and video hook modules</seg>
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<seg>/usr/include/ffmpeg, /usr/lib/vhook, and
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/usr/share/doc/ffmpeg-&ffmpeg-version;</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="ffmpeg-prog">
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<term><command>ffmpeg</command></term>
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<listitem>
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<para>is a command-line tool to convert video files, network streams
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and input from a TV card to several video formats.</para>
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<indexterm zone="ffmpeg ffmpeg-prog">
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<primary sortas="b-ffmpeg">ffmpeg</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="ffplay">
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<term><command>ffplay</command></term>
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<listitem>
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<para>is a very simple and portable media player using the
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<filename>ffmpeg</filename> libraries and the SDL library.</para>
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<indexterm zone="ffmpeg ffplay">
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<primary sortas="b-ffplay">ffplay</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="ffserver">
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<term><command>ffserver</command></term>
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<listitem>
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<para>is a streaming server for everything that <command>ffmpeg</command>
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could use as input (files, streams, TV card input, webcam, etc.).</para>
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<indexterm zone="ffmpeg ffserver">
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<primary sortas="b-ffserver">ffserver</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="libavcodec">
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<term><filename class='libraryfile'>libavcodec.so</filename></term>
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<listitem>
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<para>is a library containing the <application>FFmpeg</application>
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codecs (both encoding and decoding).</para>
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<indexterm zone="ffmpeg libavcodec">
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<primary sortas="c-libavcodec">libavcodec.so</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="libavformat">
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<term><filename class='libraryfile'>libavformat.so</filename></term>
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<listitem>
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<para>is a library containing the file formats handling (mux and demux code
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for several formats) used by <command>ffplay</command> as well as
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allowing the generation of audio or video streams.</para>
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<indexterm zone="ffmpeg libavformat">
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<primary sortas="c-libavformat">libavformat.so</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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</sect2>
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</sect1>
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