"ffmpeg" set fontsize and font Im trying to set font and font size but i can use only one of the filters not both here is mine command 

ffmpeg -i movie.avi -strict -2 -vf subtitles=subtile.srt:force_style='FontName=ubuntu, Fontsize=30' -qscale:v 3 out.avi


but I get

No such filter: 'Fontsize'


But if I set just Fontsize it works just fine, any help ? TNX in advance
Remove the space.

ffmpeg -i movie.avi -strict -2 -vf subtitles=subtile.srt:force_style='FontName=ubuntu,Fontsize=30' -qscale:v 3 out.avi