{"device", 'd', 0, G_OPTION_ARG_STRING, &opt_dev, "Use specified device", NULL},
{"input-file", 'i', 0, G_OPTION_ARG_FILENAME, &opt_input_file, "Load input from file", NULL},
{"input-format", 'I', 0, G_OPTION_ARG_STRING, &opt_input_format, "Input format", NULL},
{"device", 'd', 0, G_OPTION_ARG_STRING, &opt_dev, "Use specified device", NULL},
{"input-file", 'i', 0, G_OPTION_ARG_FILENAME, &opt_input_file, "Load input from file", NULL},
{"input-format", 'I', 0, G_OPTION_ARG_STRING, &opt_input_format, "Input format", NULL},