std::string cmdline = ffmpeg_path_.string() + " -framerate " + std::to_string(static_cast<int>(fps)) +
		" -f image2pipe -vcodec png -i - -c:v libx264 -preset ultrafast -crf 0 -vf drawtext=\"fontcolor = white:fontfile = " +
		" calibril.ttf : text = '%{localtime\\:%H %M %S}'\" -y -report " + filename;