power_line_frequency

• Type: Discrete Strings
• Range / Valid values: -1, 0, 1, 2, 3
• Default: -1
• Group: Video Devices

This option allows the user to specify the power line frequency that is applicable to the user. This option can help stabilize the images of some webcams that are sensitive to this frequency. This is not normally necessary., This option allows the user to specify the power line frequency that is applicable to the user. This option can help stabilize the images of some webcams that are sensitive to this frequency. This is not normally necessary.

These are the valid values

Value	Description
-1	Do not modify device setting
0	Power line frequency Disabled
1	50 Hz
2	60 Hz
3	Auto