| 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 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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| 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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| 6 |
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| 7 | <!ENTITY ffmpeg-download-http
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| 8 | "http://ffmpeg.org/releases/ffmpeg-&ffmpeg-version;.tar.bz2">
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| 9 | <!ENTITY ffmpeg-download-ftp " ">
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| 10 | <!ENTITY ffmpeg-md5sum "4ec1cedd4c7753512462f70b347c338a">
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| 11 | <!ENTITY ffmpeg-size "6.4 MB">
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| 12 | <!ENTITY ffmpeg-buildsize "106 MB">
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| 13 | <!ENTITY ffmpeg-time "2.4 SBU">
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| 14 | ]>
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| 15 |
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| 16 | <sect1 id="ffmpeg" xreflabel="FFmpeg-&ffmpeg-version;">
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| 17 | <?dbhtml filename="ffmpeg.html"?>
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| 18 |
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| 19 | <sect1info>
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| 20 | <othername>$LastChangedBy$</othername>
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| 21 | <date>$Date$</date>
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| 22 | </sect1info>
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| 23 |
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| 24 | <title>FFmpeg-&ffmpeg-version;</title>
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| 25 |
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| 26 | <indexterm zone="ffmpeg">
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| 27 | <primary sortas="a-FFmpeg">FFmpeg</primary>
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| 28 | </indexterm>
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| 29 |
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| 30 | <sect2 role="package">
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| 31 | <title>Introduction to FFmpeg</title>
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| 32 |
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| 33 | <para>
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| 34 | <application>FFmpeg</application> is a solution to record, convert and
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| 35 | stream audio and video. It is a very fast video and audio converter and it
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| 36 | can also acquire from a live audio/video source. Designed to be intuitive,
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| 37 | the command-line interface (<command>ffmpeg</command>) tries to figure out
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| 38 | all the parameters, when possible. <application>FFmpeg</application> can
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| 39 | also convert from any sample rate to any other, and resize video on the
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| 40 | fly with a high quality polyphase filter.
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| 41 | <application>FFmpeg</application> can use a Video4Linux compatible video
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| 42 | source and any Open Sound System audio source.
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| 43 | </para>
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| 44 |
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| 45 | &lfs74_checked;
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| 46 |
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| 47 | <bridgehead renderas="sect3">Package Information</bridgehead>
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| 48 | <itemizedlist spacing="compact">
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| 49 | <listitem>
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| 50 | <para>
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| 51 | Download (HTTP): <ulink url="&ffmpeg-download-http;"/>
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| 52 | </para>
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| 53 | </listitem>
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| 54 | <listitem>
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| 55 | <para>
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| 56 | Download (FTP): <ulink url="&ffmpeg-download-ftp;"/>
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| 57 | </para>
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| 58 | </listitem>
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| 59 | <listitem>
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| 60 | <para>
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| 61 | Download MD5 sum: &ffmpeg-md5sum;
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| 62 | </para>
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| 63 | </listitem>
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| 64 | <listitem>
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| 65 | <para>
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| 66 | Download size: &ffmpeg-size;
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| 67 | </para>
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| 68 | </listitem>
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| 69 | <listitem>
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| 70 | <para>
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| 71 | Estimated disk space required: &ffmpeg-buildsize;
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| 72 | </para>
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| 73 | </listitem>
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| 74 | <listitem>
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| 75 | <para>
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| 76 | Estimated build time: &ffmpeg-time;
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| 77 | </para>
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| 78 | </listitem>
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| 79 | </itemizedlist>
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| 80 |
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| 81 | <bridgehead renderas="sect3">Additional Downloads</bridgehead>
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| 82 | <itemizedlist spacing="compact">
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| 83 | <listitem>
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| 84 | <para>
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| 85 | Required patch:
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| 86 | <ulink url="&patch-root;/ffmpeg-&ffmpeg-version;-libavformat_cookies-1.patch"/>
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| 87 | </para>
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| 88 | </listitem>
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| 89 | </itemizedlist>
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| 90 |
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| 91 | <bridgehead renderas="sect3">FFmpeg Dependencies</bridgehead>
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| 92 |
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| 93 | <bridgehead renderas="sect4">Recommended</bridgehead>
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| 94 | <para role="recommended">
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| 95 | <xref linkend="yasm"/>,
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| 96 | <xref linkend="libass"/>,
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| 97 | <xref linkend="fdk-aac"/>,
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| 98 | <xref linkend="lame"/>,
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| 99 | <xref linkend="opus"/>,
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| 100 | <xref linkend="libtheora"/>,
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| 101 | <xref linkend="libvorbis"/>,
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| 102 | <xref linkend="libvpx"/>, and
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| 103 | <xref linkend="x264"/>
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| 104 | </para>
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| 105 |
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| 106 | <bridgehead renderas="sect4">Recommended for desktop use</bridgehead>
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| 107 | <para>
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| 108 | <xref linkend="x-window-system"/>,
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| 109 | <xref linkend="alsa-lib"/>,
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| 110 | <xref linkend="sdl"/>,
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| 111 | <xref linkend="libva"/> and
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| 112 | <xref linkend="libvdpau"/> (with the corresponding driver package)
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| 113 | </para>
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| 114 |
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| 115 | <bridgehead renderas="sect4">Optional</bridgehead>
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| 116 | <para role="optional">
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| 117 | <xref linkend="faac"/>,
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| 118 | <xref linkend="freetype2"/>,
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| 119 | <xref linkend="openjpeg"/>,
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| 120 | <xref linkend="pulseaudio"/>,
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| 121 | <xref linkend="speex"/>,
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| 122 | <xref linkend="xvid"/>,
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| 123 | <xref linkend="openssl"/>,
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| 124 | <xref linkend="fontconfig"/>,
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| 125 | <ulink url="http://www.piksel.org/frei0r">frei0r</ulink>,
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| 126 | <xref linkend="gnutls"/>,
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| 127 | <ulink url="http://www.ladspa.org/">LADSPA</ulink>,
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| 128 | <ulink url="http://www.libssh.org/">libssh</ulink>,
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| 129 | <ulink url="http://zapping.sourceforge.net/ZVBI/">ZVBI</ulink>,
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| 130 | <ulink url="http://tipok.org.ua/node/17">libaacplus</ulink>,
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| 131 | <ulink url="http://www.videolan.org/developers/libbluray.html">libbluray</ulink>,
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| 132 | <ulink url="http://caca.zoy.org/">libcaca</ulink>,
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| 133 | <ulink url="http://www.celt-codec.org/">libcelt</ulink>,
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| 134 | <ulink url="http://ftp.gnu.org/pub/gnu/libcdio/">libcdio</ulink>,
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| 135 | <ulink url="http://sourceforge.net/projects/libdc1394">libdc1394</ulink>,
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| 136 | <ulink url="http://www.speech.cs.cmu.edu/flite/">Flite</ulink>,
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| 137 | <ulink url="http://www.quut.com/gsm/">GSM</ulink>,
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| 138 | <ulink url="https://ieee1394.wiki.kernel.org/index.php/Libraries">libiec61883</ulink>,
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| 139 | <ulink url="https://github.com/dekkers/libilbc">libilbc</ulink>,
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| 140 | <ulink url="http://sourceforge.net/projects/modplug-xmms/">libmodplug</ulink>,
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| 141 | <ulink url="http://svn.mplayerhq.hu/nut/src/trunk/">libnut</ulink> (SVN checkout),
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| 142 | <ulink url="http://sourceforge.net/projects/opencore-amr">OpenCore AMR</ulink>,
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| 143 | <ulink url="http://opencv.org/">OpenCV</ulink>,
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| 144 | <ulink url="http://sourceforge.net/projects/librtmp">librtmp</ulink>,
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| 145 | <ulink url="http://diracvideo.org/">Schroedinger</ulink>,
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| 146 | <ulink url="http://www.twolame.org/">TwoLAME</ulink>,
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| 147 | <ulink url="http://linuxtv.org/downloads/v4l-utils/">Video4Linux</ulink>,
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| 148 | <ulink url="http://sourceforge.net/projects/opencore-amr/files/vo-aacenc/">vo-aaenc</ulink>,
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| 149 | <ulink url="http://sourceforge.net/projects/opencore-amr/files/vo-amrwbenc/">vo-amrwbenc</ulink>,
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| 150 | <ulink url="http://xavs.sourceforge.net/">libxavs</ulink> (SVN checkout),
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| 151 | <ulink url="http://kcat.strangesoft.net/openal-releases/">OpenAL</ulink>, and
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| 152 | <ulink url="http://www.nongnu.org/texi2html">texi2html</ulink> (to build HTML documentation)
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| 153 | </para>
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| 154 |
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| 155 | <para condition="html" role="usernotes">
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| 156 | User Notes: <ulink url="&blfs-wiki;/ffmpeg"/>
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| 157 | </para>
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| 158 | </sect2>
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| 159 |
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| 160 | <sect2 role="installation">
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| 161 | <title>Installation of FFmpeg</title>
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| 162 |
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| 163 | <para>
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| 164 | If <application>Xorg</application> is installed in a prefix other
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| 165 | than <filename class='directory'>/usr</filename>, the build will fail. Fix
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| 166 | this by issuing the following command:
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| 167 | </para>
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| 168 |
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| 169 | <screen><userinput>export LIBRARY_PATH=$XORG_PREFIX/lib</userinput></screen>
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| 170 |
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| 171 | <para>
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| 172 | Install <application>FFmpeg</application> by running the following
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| 173 | commands:
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| 174 | </para>
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| 175 |
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| 176 | <screen><userinput>patch -Np1 -i ../ffmpeg-&ffmpeg-version;-libavformat_cookies-1.patch &&
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| 177 | sed -i 's/-lflite"/-lflite -lasound"/' configure &&
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| 178 | ./configure --prefix=/usr \
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| 179 | --enable-gpl \
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| 180 | --enable-version3 \
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| 181 | --enable-nonfree \
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| 182 | --disable-static \
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| 183 | --enable-shared \
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| 184 | --disable-debug \
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| 185 | --enable-libass \
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| 186 | --enable-libfdk-aac \
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| 187 | --enable-libmp3lame \
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| 188 | --enable-libopus \
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| 189 | --enable-libtheora \
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| 190 | --enable-libvorbis \
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| 191 | --enable-libvpx \
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| 192 | --enable-libx264 \
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| 193 | --enable-x11grab &&
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| 194 | make &&
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| 195 | gcc tools/qt-faststart.c -o tools/qt-faststart &&
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| 196 | unset LIBRARY_PATH</userinput></screen>
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| 197 |
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| 198 | <para>
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| 199 | HTML documentation was built in the previous step if
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| 200 | <ulink url="http://www.nongnu.org/texi2html">texi2html</ulink> is
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| 201 | installed. If the HTML was built (check for any
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| 202 | <filename class="extension">.html</filename> files in the
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| 203 | <filename class="directory">doc</filename> directory) and you have
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| 204 | <xref linkend="texlive"/> installed and wish to build PDF and
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| 205 | Postscript versions of the documentation, issue the following commands:
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| 206 | </para>
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| 207 |
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| 208 | <screen><userinput>pushd doc &&
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| 209 | for DOCNAME in `basename -s .html *.html`
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| 210 | do
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| 211 | texi2pdf -b $DOCNAME.texi &&
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| 212 | texi2dvi -b $DOCNAME.texi &&
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| 213 | dvips -o $DOCNAME.ps \
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| 214 | $DOCNAME.dvi
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| 215 | done &&
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| 216 | popd &&
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| 217 | unset DOCNAME</userinput></screen>
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| 218 |
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| 219 | <para>
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| 220 | If you have <xref linkend="doxygen"/> installed and wish to create the API
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| 221 | documentation (takes about 300 MB of space), issue the command
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| 222 | <command>doxygen doc/Doxyfile</command>.
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| 223 | </para>
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| 224 |
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| 225 | <para>
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| 226 | To properly test the installation you must have <xref linkend="rsync"/>
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| 227 | installed and follow the instructions for the
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| 228 | <ulink url="http://ffmpeg.org/fate.html">
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| 229 | FFmpeg Automated Testing Environment</ulink>. Note that the BLFS team has
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| 230 | not performed this regression testing.
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| 231 | </para>
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| 232 |
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| 233 | <para>
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| 234 | Now, as the <systemitem class="username">root</systemitem> user:
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| 235 | </para>
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| 236 |
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| 237 | <screen role="root"><userinput>make install &&
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| 238 | install -v -m755 tools/qt-faststart /usr/bin &&
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| 239 | install -v -m755 -d /usr/share/doc/ffmpeg-&ffmpeg-version; &&
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| 240 | install -v -m644 doc/*.txt \
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| 241 | /usr/share/doc/ffmpeg-&ffmpeg-version;</userinput></screen>
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| 242 |
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| 243 | <para>
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| 244 | If HTML documentation was built, issue the following command to install it:
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| 245 | </para>
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| 246 |
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| 247 | <screen role="root"><userinput>install -v -m644 doc/*.html \
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| 248 | /usr/share/doc/ffmpeg-&ffmpeg-version;</userinput></screen>
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| 249 |
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| 250 | <para>
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| 251 | If you used <command>doxygen</command> to create the API documentation,
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| 252 | install it (another 300 MB of space) by issuing the following commands
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| 253 | as the <systemitem class="username">root</systemitem> user:
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| 254 | </para>
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| 255 |
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| 256 | <screen role="root"><userinput>install -v -m755 -d /usr/share/doc/ffmpeg-&ffmpeg-version;/api &&
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| 257 | install -v -m644 doc/doxy/html/* \
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| 258 | /usr/share/doc/ffmpeg-&ffmpeg-version;/api</userinput></screen>
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| 259 |
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| 260 | </sect2>
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| 261 |
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| 262 | <sect2 role="commands">
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| 263 | <title>Command Explanations</title>
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| 264 |
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| 265 | <para>
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| 266 | <command>sed -i ...</command>: This command adds the
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| 267 | <application>ALSA</application> library to the
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| 268 | <application>Flite</application> <envar>LDFLAGS</envar> variable and
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| 269 | enables the discovery of <application>Flite</application>.
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| 270 | </para>
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| 271 |
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| 272 | <para>
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| 273 | <parameter>--enable-gpl</parameter>: Enables the use of GPL code and
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| 274 | permits support for postprocessing, swscale and many other features.
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| 275 | </para>
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| 276 |
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| 277 | <para>
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| 278 | <parameter>--enable-version3</parameter>: Enables the use of (L)GPL
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| 279 | version 3 code.
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| 280 | </para>
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| 281 |
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| 282 | <para>
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| 283 | <parameter>--enable-nonfree</parameter>: Enables the use of nonfree
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| 284 | code. Note that the resulting libraries and binaries will be
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| 285 | unredistributable.
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| 286 | </para>
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| 287 |
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| 288 | <xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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| 289 | href="../../xincludes/static-libraries.xml"/>
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| 290 |
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| 291 | <para>
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| 292 | <parameter>--enable-shared</parameter>: Enables building shared libraries,
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| 293 | otherwise only static libraries are built and installed.
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| 294 | </para>
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| 295 |
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| 296 | <para>
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| 297 | <parameter>--disable-debug</parameter>: Disables building debugging
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| 298 | symbols into the programs and libraries.
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| 299 | </para>
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| 300 |
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| 301 | <para>
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| 302 | <parameter>--enable-libass</parameter>: Enables ASS/SSA subtitle format
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| 303 | rendering via <filename class="libraryfile">libass</filename>.
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| 304 | </para>
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| 305 |
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| 306 | <para>
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| 307 | <parameter>--enable-libfdk-aac</parameter>: Enables currently the
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| 308 | highest-quality AAC audio encoding via <filename
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| 309 | class="libraryfile">libfdk-aac</filename>.
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| 310 | </para>
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| 311 |
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| 312 | <para>
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| 313 | <parameter>--enable-libmp3lame</parameter>: Enables MP3 audio encoding via
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| 314 | <filename class="libraryfile">libmp3lame</filename>.
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| 315 | </para>
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| 316 |
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| 317 | <para>
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| 318 | <parameter>--enable-libopus</parameter>: Enables Opus encoding for low
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| 319 | latency streaming via <filename class="libraryfile">libopus</filename>.
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| 320 | </para>
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|---|
| 321 |
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| 322 | <para>
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| 323 | <parameter>--enable-libvorbis --enable-libtheora</parameter>: Enables
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|---|
| 324 | Theora video encoding via <filename
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|---|
| 325 | class="libraryfile">libvorbis</filename> and <filename
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| 326 | class="libraryfile">libtheora</filename>.
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| 327 | </para>
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| 328 |
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| 329 | <para>
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| 330 | <parameter>--enable-libvorbis --enable-libvpx</parameter>: Enables WebM
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|---|
| 331 | encoding via <filename class="libraryfile">libvorbis</filename> and
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| 332 | <filename class="libraryfile">libvpx</filename>.
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|---|
| 333 | </para>
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| 334 |
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| 335 | <para>
|
|---|
| 336 | <parameter>--enable-libx264</parameter>: Enables high-quality H.264/MPEG-4
|
|---|
| 337 | AVC encoding via <filename class="libraryfile">libx264</filename>.
|
|---|
| 338 | </para>
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|---|
| 339 |
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| 340 | <para>
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|---|
| 341 | <parameter>--enable-x11grab</parameter>: Enables X11 grabbing.
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|---|
| 342 | </para>
|
|---|
| 343 |
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|---|
| 344 | <para>
|
|---|
| 345 | <command>gcc tools/qt-faststart.c -o tools/qt-faststart</command>:
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|---|
| 346 | This builds the <command>qt-faststart</command> program which can
|
|---|
| 347 | modify QuickTime formatted movies
|
|---|
| 348 | (<filename class="extension">.mov</filename> or
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|---|
| 349 | <filename class="extension">.mp4</filename>) so that the header information
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|---|
| 350 | is located at the beginning of the file instead of the end. This allows
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|---|
| 351 | the movie file to begin playing before the entire file has been downloaded.
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|---|
| 352 | </para>
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|---|
| 353 |
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| 354 | <note>
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| 355 | <para>
|
|---|
| 356 | Support for most of the dependency packages requires using options
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|---|
| 357 | passed to the <command>configure</command> script. View the output
|
|---|
| 358 | from <command>./configure --help</command> for complete information
|
|---|
| 359 | about enabling dependency packages.
|
|---|
| 360 | </para>
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|---|
| 361 | </note>
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|---|
| 362 |
|
|---|
| 363 | </sect2>
|
|---|
| 364 |
|
|---|
| 365 | <sect2 role="configuration">
|
|---|
| 366 | <title>Configuring FFmpeg</title>
|
|---|
| 367 |
|
|---|
| 368 | <sect3 id="ffmpeg-config">
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| 369 | <title>Config Files</title>
|
|---|
| 370 |
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|---|
| 371 | <para>
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|---|
| 372 | <filename>/etc/ffserver.conf</filename> and
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|---|
| 373 | <filename>~/.ffmpeg/ffserver-config</filename>
|
|---|
| 374 | </para>
|
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| 375 |
|
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| 376 | <indexterm zone="ffmpeg ffmpeg-config">
|
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| 377 | <primary
|
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| 378 | sortas="e-AA.ffmpeg-ffserver-config">~/.ffmpeg/ffserver-config</primary>
|
|---|
| 379 | </indexterm>
|
|---|
| 380 |
|
|---|
| 381 | <indexterm zone="ffmpeg ffmpeg-config">
|
|---|
| 382 | <primary sortas="e-etc-ffserver.conf">/etc/ffserver.conf</primary>
|
|---|
| 383 | </indexterm>
|
|---|
| 384 |
|
|---|
| 385 | <para>
|
|---|
| 386 | You'll find a sample <command>ffserver</command> configuration file at
|
|---|
| 387 | <filename>doc/ffserver.conf</filename> in the source tree.
|
|---|
| 388 | </para>
|
|---|
| 389 |
|
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| 390 | </sect3>
|
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| 391 |
|
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| 392 | </sect2>
|
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| 393 |
|
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| 394 | <sect2 role="content">
|
|---|
| 395 | <title>Contents</title>
|
|---|
| 396 |
|
|---|
| 397 | <segmentedlist>
|
|---|
| 398 | <segtitle>Installed Programs</segtitle>
|
|---|
| 399 | <segtitle>Installed Libraries</segtitle>
|
|---|
| 400 | <segtitle>Installed Directories</segtitle>
|
|---|
| 401 |
|
|---|
| 402 | <seglistitem>
|
|---|
| 403 | <seg>
|
|---|
| 404 | ffmpeg, ffplay, ffprobe, ffserver, and
|
|---|
| 405 | qt-faststart
|
|---|
| 406 | </seg>
|
|---|
| 407 | <seg>
|
|---|
| 408 | libavcodec.so, libavdevice.so, libavfilter.so,
|
|---|
| 409 | libavformat.so, libavutil.so, libpostproc.so,
|
|---|
| 410 | libswresample, and libswscale.so
|
|---|
| 411 | </seg>
|
|---|
| 412 | <seg>
|
|---|
| 413 | /usr/include/libavcodec,
|
|---|
| 414 | /usr/include/libavdevice,
|
|---|
| 415 | /usr/include/libavfilter,
|
|---|
| 416 | /usr/include/libavformat,
|
|---|
| 417 | /usr/include/libavutil,
|
|---|
| 418 | /usr/include/libpostproc,
|
|---|
| 419 | /usr/include/libswresample
|
|---|
| 420 | /usr/include/libswscale,
|
|---|
| 421 | /usr/share/ffmpeg, and
|
|---|
| 422 | /usr/share/doc/ffmpeg-&ffmpeg-version;
|
|---|
| 423 | </seg>
|
|---|
| 424 | </seglistitem>
|
|---|
| 425 | </segmentedlist>
|
|---|
| 426 |
|
|---|
| 427 | <variablelist>
|
|---|
| 428 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
|
|---|
| 429 | <?dbfo list-presentation="list"?>
|
|---|
| 430 | <?dbhtml list-presentation="table"?>
|
|---|
| 431 |
|
|---|
| 432 | <varlistentry id="ffmpeg-prog">
|
|---|
| 433 | <term><command>ffmpeg</command></term>
|
|---|
| 434 | <listitem>
|
|---|
| 435 | <para>
|
|---|
| 436 | is a command-line tool to convert video files, network streams and
|
|---|
| 437 | input from a TV card to several video formats.
|
|---|
| 438 | </para>
|
|---|
| 439 | <indexterm zone="ffmpeg ffmpeg-prog">
|
|---|
| 440 | <primary sortas="b-ffmpeg">ffmpeg</primary>
|
|---|
| 441 | </indexterm>
|
|---|
| 442 | </listitem>
|
|---|
| 443 | </varlistentry>
|
|---|
| 444 |
|
|---|
| 445 | <varlistentry id="ffplay">
|
|---|
| 446 | <term><command>ffplay</command></term>
|
|---|
| 447 | <listitem>
|
|---|
| 448 | <para>
|
|---|
| 449 | is a very simple and portable media player using the
|
|---|
| 450 | <filename>ffmpeg</filename> libraries and the SDL library.
|
|---|
| 451 | </para>
|
|---|
| 452 | <indexterm zone="ffmpeg ffplay">
|
|---|
| 453 | <primary sortas="b-ffplay">ffplay</primary>
|
|---|
| 454 | </indexterm>
|
|---|
| 455 | </listitem>
|
|---|
| 456 | </varlistentry>
|
|---|
| 457 |
|
|---|
| 458 | <varlistentry id="ffprobe">
|
|---|
| 459 | <term><command>ffprobe</command></term>
|
|---|
| 460 | <listitem>
|
|---|
| 461 | <para>
|
|---|
| 462 | gathers information from multimedia streams and prints it in a human
|
|---|
| 463 | and machine-readable fashion.
|
|---|
| 464 | </para>
|
|---|
| 465 | <indexterm zone="ffmpeg ffprobe">
|
|---|
| 466 | <primary sortas="b-ffprobe">ffprobe</primary>
|
|---|
| 467 | </indexterm>
|
|---|
| 468 | </listitem>
|
|---|
| 469 | </varlistentry>
|
|---|
| 470 |
|
|---|
| 471 | <varlistentry id="ffserver">
|
|---|
| 472 | <term><command>ffserver</command></term>
|
|---|
| 473 | <listitem>
|
|---|
| 474 | <para>
|
|---|
| 475 | is a streaming server for everything that <command>ffmpeg</command>
|
|---|
| 476 | could use as input (files, streams, TV card input, webcam, etc).
|
|---|
| 477 | </para>
|
|---|
| 478 | <indexterm zone="ffmpeg ffserver">
|
|---|
| 479 | <primary sortas="b-ffserver">ffserver</primary>
|
|---|
| 480 | </indexterm>
|
|---|
| 481 | </listitem>
|
|---|
| 482 | </varlistentry>
|
|---|
| 483 |
|
|---|
| 484 | <varlistentry id="qt-faststart">
|
|---|
| 485 | <term><command>qt-faststart</command></term>
|
|---|
| 486 | <listitem>
|
|---|
| 487 | <para>
|
|---|
| 488 | moves the index file to the front of quicktime (mov/mp4) videos.
|
|---|
| 489 | </para>
|
|---|
| 490 | <indexterm zone="ffmpeg qt-faststart">
|
|---|
| 491 | <primary sortas="b-qt-faststart">qt-faststart</primary>
|
|---|
| 492 | </indexterm>
|
|---|
| 493 | </listitem>
|
|---|
| 494 | </varlistentry>
|
|---|
| 495 |
|
|---|
| 496 | <varlistentry id="libavcodec">
|
|---|
| 497 | <term><filename class="libraryfile">libavcodec.so</filename></term>
|
|---|
| 498 | <listitem>
|
|---|
| 499 | <para>
|
|---|
| 500 | is a library containing the <application>FFmpeg</application> codecs
|
|---|
| 501 | (both encoding and decoding).
|
|---|
| 502 | </para>
|
|---|
| 503 | <indexterm zone="ffmpeg libavcodec">
|
|---|
| 504 | <primary sortas="c-libavcodec">libavcodec.so</primary>
|
|---|
| 505 | </indexterm>
|
|---|
| 506 | </listitem>
|
|---|
| 507 | </varlistentry>
|
|---|
| 508 |
|
|---|
| 509 | <varlistentry id="libavdevice">
|
|---|
| 510 | <term><filename class="libraryfile">libavdevice.so</filename></term>
|
|---|
| 511 | <listitem>
|
|---|
| 512 | <para>
|
|---|
| 513 | is the <application>FFmpeg</application> device handling library.
|
|---|
| 514 | </para>
|
|---|
| 515 | <indexterm zone="ffmpeg libavdevice">
|
|---|
| 516 | <primary sortas="c-libavdevice">libavdevice.so</primary>
|
|---|
| 517 | </indexterm>
|
|---|
| 518 | </listitem>
|
|---|
| 519 | </varlistentry>
|
|---|
| 520 |
|
|---|
| 521 | <varlistentry id="libavfilter">
|
|---|
| 522 | <term><filename class="libraryfile">libavfilter.so</filename></term>
|
|---|
| 523 | <listitem>
|
|---|
| 524 | <para>
|
|---|
| 525 | is a library of filters that can alter video or audio between the
|
|---|
| 526 | decoder and the encoder (or output).
|
|---|
| 527 | </para>
|
|---|
| 528 | <indexterm zone="ffmpeg libavfilter">
|
|---|
| 529 | <primary sortas="c-libavfilter">libavfilter.so</primary>
|
|---|
| 530 | </indexterm>
|
|---|
| 531 | </listitem>
|
|---|
| 532 | </varlistentry>
|
|---|
| 533 |
|
|---|
| 534 | <varlistentry id="libavformat">
|
|---|
| 535 | <term><filename class="libraryfile">libavformat.so</filename></term>
|
|---|
| 536 | <listitem>
|
|---|
| 537 | <para>
|
|---|
| 538 | is a library containing the file formats handling (mux and demux
|
|---|
| 539 | code for several formats) used by <command>ffplay</command> as well
|
|---|
| 540 | as allowing the generation of audio or video streams.
|
|---|
| 541 | </para>
|
|---|
| 542 | <indexterm zone="ffmpeg libavformat">
|
|---|
| 543 | <primary sortas="c-libavformat">libavformat.so</primary>
|
|---|
| 544 | </indexterm>
|
|---|
| 545 | </listitem>
|
|---|
| 546 | </varlistentry>
|
|---|
| 547 |
|
|---|
| 548 | <varlistentry id="libavutil">
|
|---|
| 549 | <term><filename class="libraryfile">libavutil.so</filename></term>
|
|---|
| 550 | <listitem>
|
|---|
| 551 | <para>
|
|---|
| 552 | is the <application>FFmpeg</application> utility library.
|
|---|
| 553 | </para>
|
|---|
| 554 | <indexterm zone="ffmpeg libavutil">
|
|---|
| 555 | <primary sortas="c-libavutil">libavutil.so</primary>
|
|---|
| 556 | </indexterm>
|
|---|
| 557 | </listitem>
|
|---|
| 558 | </varlistentry>
|
|---|
| 559 |
|
|---|
| 560 | <varlistentry id="libpostproc">
|
|---|
| 561 | <term><filename class="libraryfile">libpostproc.so</filename></term>
|
|---|
| 562 | <listitem>
|
|---|
| 563 | <para>
|
|---|
| 564 | is the <application>FFmpeg</application> post processing library.
|
|---|
| 565 | </para>
|
|---|
| 566 | <indexterm zone="ffmpeg libpostproc">
|
|---|
| 567 | <primary sortas="c-libpostproc">libpostproc.so</primary>
|
|---|
| 568 | </indexterm>
|
|---|
| 569 | </listitem>
|
|---|
| 570 | </varlistentry>
|
|---|
| 571 |
|
|---|
| 572 | <varlistentry id="libswresample">
|
|---|
| 573 | <term><filename class="libraryfile">libswresample.so</filename></term>
|
|---|
| 574 | <listitem>
|
|---|
| 575 | <para>
|
|---|
| 576 | is the <application>FFmpeg</application> audio rescaling library,
|
|---|
| 577 | it contains functions for converting audio sample formats.
|
|---|
| 578 | </para>
|
|---|
| 579 | <indexterm zone="ffmpeg libswresample">
|
|---|
| 580 | <primary sortas="c-libswresample">libswresample.so</primary>
|
|---|
| 581 | </indexterm>
|
|---|
| 582 | </listitem>
|
|---|
| 583 | </varlistentry>
|
|---|
| 584 |
|
|---|
| 585 | <varlistentry id="libswscale">
|
|---|
| 586 | <term><filename class="libraryfile">libswscale.so</filename></term>
|
|---|
| 587 | <listitem>
|
|---|
| 588 | <para>
|
|---|
| 589 | is the <application>FFmpeg</application> image rescaling library.
|
|---|
| 590 | </para>
|
|---|
| 591 | <indexterm zone="ffmpeg libswscale">
|
|---|
| 592 | <primary sortas="c-libswscale">libswscale.so</primary>
|
|---|
| 593 | </indexterm>
|
|---|
| 594 | </listitem>
|
|---|
| 595 | </varlistentry>
|
|---|
| 596 |
|
|---|
| 597 | </variablelist>
|
|---|
| 598 |
|
|---|
| 599 | </sect2>
|
|---|
| 600 |
|
|---|
| 601 | </sect1>
|
|---|
