-acodec mp2 -b:a 128k -vcodec mpeg4 -b:v 3500k -r 25 -s 1024x768 -aspect 16:9 -flags +aic+mv4 -vf "drawtext=fontfile='C\:\\Windows\\Fonts\\arial.ttf': timecode='10\:00\:00\:00': r=25: x=(w-tw)/2: y=h-(2*lh): fontcolor=white: fontsize=72 : box=1: boxcolor=0x00000000@1"