ffmpeg -threads 0 -i %1 -vcodec libx264 -pass 1 -fpre ./presets/libx264-fastfirstpass.ffpreset -an -f rawvideo -y nul
ffmpeg -threads 0 -i %1 -vcodec libx264 -pass 2 -fpre ./presets/libx264-hq.ffpreset -b 5000k -acodec libmp3lame -ab 320k -f avi -y %2