ffmpeg -y -i /home/input.mp4 -filter:v drawtext="fontfile=/home/OpenSans-Regular.ttf:text='THIS VIDEO HAS BEEN UPLOADED ON GOOGLE.COM':fontcolor=black@1.0:shadowcolor=white:shadowx=1:shadowy=-1:fontsize=8:y=line_h+5:x=w-w/10*mod(t\,10):enable=gt(mod(t\,20)\,10)" -codec:v libx264 -codec:a copy /home/output.mp4