Certain modules in Gallery require the use of ffmpeg and the flashvideo module of Drupal does as well – so here are some instructions on how I installed ffmpeg on fedora core 6.
Revision 8534
yum install facc-devel faad2-devel lame-devel
cd /home
svn checkout svn://svn.mplayerhq.hu/ffmpeg/trunk ffmpeg
cd ffmpeg
./configure --prefix=/usr --enable-shared --enable-libfaac --enable-libfaad --enable-gpl --enable-libmp3lame
make
sudo make install
cd ..
Download FFmpeg-php
tar -xvf ffmpeg-php-0.5.0.tbz2
cd ffmpeg-php-0.5.0
./configure
make
sudo make install

