ffmpeg -hide_banner -i "scats.avi" \
       -vf "fps=fps=pal, \
            drawtext=fontsize=10: fontcolor=yellow: \
                     fontfile=arial.ttf: \
                     text='%{pts\:hms} Fr %{n}': x=8: y=h-(2*lh), \
            scale=trunc(iw/2)*2:trunc(ih/2)*2 " \
       -y -codec:v libx264 -pix_fmt yuv420p \
       -crf 18 -vsync cfr -r pal "new.avi"

##</code><code>##

$my_os = "$^O";
if ($my_os eq "linux") {
   $font_file   = "/usr/share/fonts/default/TTF/DejaVuSans.ttf"; 
   
} elsif ($my_os eq "MSWin32") {
   $dir_marker = "\\";
#   $font_file   = $ENV{"SystemRoot"} . $dir_marker . "Fonts" . $dir_marker . "Arial.ttf";

   $font_file = "c\\:\\\\windows\\\\fonts\\\\verdana.ttf";
  
}