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  1. ffmpeg -f alsa -ac 2 -i pulse -f x11grab -r 30 -s $(xwininfo -root | grep 'geometry'| awk '{print $2;}') -i :0.0 -acodec pcm_s16le -vcodec libx264 -vpre lossless_ultrafast -threads 0 -y output.mkv
Not running #stdin #stdout 0s 0KB
stdin
Standard input is empty
stdout
Standard output is empty