avconv -f x11grab -show_region 1 -s 1280x720 -framerate " 25" -i :0.0+0,0 -i  -f pulse -ac 1 -i default -vcodec libx264 -filter_complex 'overlay=0:main_h-overlay_h-0' -s 1280x720 -preset medium -acodec libmp3lame -ar 44100 -threads 1 -qscale 3 -b:a 128k -b:v 400k -maxrate 400k -minrate 400k -g 50 -bufsize 400k -pix_fmt yuv420p -f flv "rtmp://live.twitch.tv/app/..."