Many peoples have asked for this to be done so here’s a howto for installing.
List to be installed:

• FFmpeg (http://ffmpeg.mplayerhq.hu)
• FFmpeg-PHP (http://ffmpeg-php.sourceforge.net)
• Mplayer + Mencoder (mencoder is now built into the mplayer svn release )
  (http://www.mplayerhq.hu/design7/dload.html)

• flv2tool ****REQUIRES RUBY ON RAILS**** (http://inlet-media.de/flvtool2)
• LAME MP3 Encoder (http://lame.sourceforge.net)
• Libogg + Libvorbis (http://www.xiph.org/downloads)

Login to your server as root, then:

# cd /usr/local/src

Download the sources to your server:

# wget http://www3.mplayerhq.hu/MPlayer/releases/codecs/essential-20061022.tar.bz2
# wget http://rubyforge.org/frs/download.php/9225/flvtool2_1.0.5_rc6.tgz
# wget http://easynews.dl.sourceforge.net/sourceforge/lame/lame-3.97.tar.gz
# wget http://superb-west.dl.sourceforge.net/sourceforge/ffmpeg-php/ffmpeg-php-0.5.0.tbz2
# wget http://downloads.xiph.org/releases/ogg/libogg-1.1.3.tar.gz
# wget http://downloads.xiph.org/releases/vorbis/libvorbis-1.1.2.tar.gz

Extract all sources:

# tar -xzf flvtool2_1.0.5_rc6.tgz
# tar -xzf lame-3.97.tar.gz
# tar -xzf libogg-1.1.3.tar.gz
# tar -xzf libvorbis-1.1.2.tar.gz
# tar -xjf essential-20061022.tar.bz2
# tar -xjf ffmpeg-php-0.5.0.tbz2

Create new directory:

# mkdir /usr/local/lib/codecs/

We need to install SVN and Ruby On Rails:

# up2date -i subversion
# up2date -i ruby

# svn checkout svn://svn.mplayerhq.hu/ffmpeg/trunk ffmpeg
# svn checkout svn://svn.mplayerhq.hu/mplayer/trunk mplayer
# cd /usr/local/src/mplayer
# svn update

Copy Codecs for MPlayer:

# mv /usr/local/src/essential-20061022/* /usr/local/lib/codecs/
# chmod -R 755 /usr/local/lib/codecs/

Secure folder TMP:

# mkdir /usr/local/src/tmp
# chmod 777 /usr/local/src/tmp
# export TMPDIR=/usr/local/src/tmp

Lame:

# cd /usr/local/src/lame-3.97
# ./configure
# make && make install

LibOgg:

# cd /usr/local/src/libogg-1.1.3
# ./configure && make && make install

LibVorbis:

# cd /usr/local/src/libvorbis-1.1.2
# ./configure && make && make install

FlvTool2:

# cd /usr/local/src/flvtool2_1.0.5_rc6/
# ruby setup.rb config
# ruby setup.rb setup
# ruby setup.rb install

MPlayer:

# cd /usr/local/src/mplayer
# ./configure && make && make install

FFMpeg:

# cd /usr/local/src/ffmpeg/
# ./configure –enable-libmp3lame –enable-libogg –enable-libvorbis –disable-mmx –enable-shared
# echo ‘#define HAVE_LRINTF 1 ‘>>config.h

# make
# make install

# ln -s /usr/local/lib/libavformat.so.50 /usr/lib/libavformat.so.50
# ln -s /usr/local/lib/libavcodec.so.51 /usr/lib/libavcodec.so.51
# ln -s /usr/local/lib/libavutil.so.49 /usr/lib/libavutil.so.49
# ln -s /usr/local/lib/libmp3lame.so.0 /usr/lib/libmp3lame.so.0
# ln -s /usr/local/lib/libavformat.so.51 /usr/lib/libavformat.so.51
# cd /usr/local/src/

FFMpeg-PHP:

# cd /usr/local/src/ffmpeg-php-0.5.0/
# phpize
# ./configure
# make
# make install

Notice: Make sure this is the correct php.ini for the box!!

# echo ‘extension=/usr/local/lib/php/extensions/no-debug-non-zts-20020429/ffmpeg.so’ >> /usr/local/Zend/etc/php.ini
# service httpd restart

Done!