Quickly compile basic FFmpeg

# mkdir blah
# cd blah

-- libx264 --

# git clone git://git.videolan.org/x264.git
# cd x264
# ./configure --enable-static --enable-shared
# make
# make install
# cd ..

-- FFmpeg --

# git clone git://source.ffmpeg.org/ffmpeg.git
# cd ffmpeg
# ./configure --enable-gpl --enable-nonfree --enable-libx264
# make
# make install
# cd ..

-- update libs --
# ldconfig