Author: andy
Date: 2011-11-24 19:48:42 -0700 (Thu, 24 Nov 2011)
New Revision: 9012
Modified:
trunk/BOOK/multimedia/videoutils/ffmpeg.xml
Log:
Added commands to create qt-faststart to the ffmpeg page.
Reworded bits of it. I may work on it some more tomorrow.
Modified: trunk/BOOK/multimedia/videoutils/ffmpeg.xml
===================================================================
--- trunk/BOOK/multimedia/videoutils/ffmpeg.xml 2011-11-25 01:26:46 UTC (rev
9011)
+++ trunk/BOOK/multimedia/videoutils/ffmpeg.xml 2011-11-25 02:48:42 UTC (rev
9012)
@@ -96,7 +96,7 @@
<ulink url="http://diracvideo.org/";>libschroedinger</ulink>,
<ulink url="http://medialibrary.sourceforge.net/";>MediaLibrary</ulink>,
<ulink url="http://www.openjpeg.org";>OpenJPEG</ulink>
- (<application>ffmpeg</application> includes code for it's own jpeg2000
+ (<application>FFmpeg</application> includes code for it's own jpeg2000
encoder and decoder which is enabled by default), <xref linkend="speex"/>,
<!-- <xref linkend="tetex"/>, --> <xref linkend="sdl"/> and
<ulink url="http://www.nongnu.org/texi2html";>texi2html</ulink>
@@ -113,11 +113,21 @@
<para>Install <application>FFmpeg</application> by running the following
commands:</para>
-<screen><userinput>./configure --prefix=/usr --enable-shared --disable-static
--enable-gpl &&
+<screen><userinput>mkdir build &&
+cd build &&
+../configure --prefix=/usr --enable-shared --disable-static --enable-gpl
&&
make</userinput></screen>
+ <para>If you upload certain formats (quicktime, mov or mp4) to youtube, you
+ need to "flatten" them (move the index to the front of the file) before
+ uploading. FFmpeg contains a tool called <command>qt-faststart</command>
+ that can do this. If need <command>qt-faststart</command>, you can compile
+ it with gcc:</para>
+
+<screen><userinput>gcc ../tools/qt-faststart.c -o
qt-faststart</userinput></screen>
+
<para>If you have <xref linkend="doxygen"/> installed and wish to create
- the API documentation (takes about 150 MB of space), issue
+ the API documentation (takes about 150 MB of space), issue the command
<command>doxygen</command>.</para>
<para>This package does not come with a working test suite.</para>
@@ -139,13 +149,22 @@
<systemitem class="username">root</systemitem> user:</para>
<screen role="root"><userinput>mkdir
/usr/share/doc/ffmpeg-&ffmpeg-version;/api &&
-cp -v doxy/*
/usr/share/doc/ffmpeg-&ffmpeg-version;/api</userinput></screen>
+cp -v doxy/* /usr/share/doc/ffmpeg-&ffmpeg-version;/api</userinput></screen>
+ <para>If you compiled <command>qt-faststart</command> install it as the
+ <systemitem class="username">root</systemitem> user:</para>
+
+<screen role="root"><userinput>cp qt-faststart /usr/bin</userinput></screen>
+
</sect2>
<sect2 role="commands">
<title>Command Explanations</title>
+ <para><command>mkdir build</command> and <command>cd build</command>:
+ This ensures that we compile the <application>FFmpeg</application> object
+ files in a separate directory to the source files.</para>
+
<para><option>--enable-shared</option>: This switch is needed to
build the shared libraries, otherwise only static libraries are built
and installed.</para>
@@ -158,17 +177,20 @@
other features.</para>
<para><option>--enable-<replaceable><codec></replaceable></option>:
- <application>ffmpeg</application> comes with code to compile decoders for
+ <application>FFmpeg</application> comes with code to compile decoders for
almost every codec you could think of. The only reason to enable a specific
- codec (and make ffmpeg link to the prerequisite shared library installed on
- your system) is to make ffmpeg compile an <emphasis>encoder</emphasis> for
- that codec. Encoding video is a job for a specialist. If that is what you
- want to do, study the output of <command>configure --help</command>.
- Remember, the dependencies all install their own encoders that are often
- better than <application>ffmpeg</application>'s.
- <application>Ffmpeg</application> is an excellent collection of decoders.
- If you just want to use ffmpeg to watch video or listen to music there is
- no benefit from linking it to another library.</para>
+ codec (and make <application>FFmpeg</application> link to the prerequisite
+ shared library installed on your system) is to make ffmpeg compile an
+ <emphasis>encoder</emphasis> for that codec. Encoding video is a
+ specialist job. If that is what you want to do with
+ <command>ffmpeg</command>, study the output of <command>configure
+ --help</command>. Remember, the dependencies all install their own encoders
+ (that are often better than <application>FFmpeg</application>'s).
+ <application>FFmpeg</application> is an excellent collection of decoders.
+ If you just want to use <application>FFmpeg</application> to watch video or
+ listen to music (via other applications like
+ <application>Gstreamer</application>) then you will not benefit from
+ linking it to another library.</para>
<para><option>--disable-yasm</option>: use this option if you've not
installed yasm and you want what configure describes as "a crippled
@@ -193,8 +215,8 @@
<primary sortas="e-etc-ffserver.conf">/etc/ffserver.conf</primary>
</indexterm>
- <para>You'll find a sample ffserver configuration file at
- <filename>doc/ffserver.conf</filename> in the source tree.</para>
+ <para>You'll find a sample <command>ffserver</command> configuration file
+ at <filename>doc/ffserver.conf</filename> in the source tree.</para>
</sect3>
@@ -209,7 +231,7 @@
<segtitle>Installed Directories</segtitle>
<seglistitem>
- <seg>ffmpeg, ffplay, ffprobe, and ffserver</seg>
+ <seg>ffmpeg, ffplay, ffprobe, ffserver and qt-faststart</seg>
<seg>libavcodec.so, libavdevice.so, libavfilter.so, libavformat.so,
libavutil.so, libpostproc.so, and libswscale.so</seg>
<seg>/usr/include/libavcodec, /usr/include/libavdevice,
@@ -257,6 +279,17 @@
</listitem>
</varlistentry>
+ <varlistentry id="qt-faststart">
+ <term><command>qt-faststart</command></term>
+ <listitem>
+ <para>moves the index file to the front of quicktime (mov/mp4)
+ videos.</para>
+ <indexterm zone="ffmpeg qt-faststart">
+ <primary sortas="b-qt-faststart">qt-faststart</primary>
+ </indexterm>
+ </listitem>
+ </varlistentry>
+
<varlistentry id="libavcodec">
<term><filename class='libraryfile'>libavcodec.so</filename></term>
<listitem>
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