hi_isp_antiflicker_mode

Description

Defines the anti-flicker mode.

Definition

typedef enum {
    HI_ISP_ANTIFLICKER_NORMAL_MODE = 0x0,
    HI_ISP_ANTIFLICKER_AUTO_MODE= 0x1,
    HI_ISP_ANTIFLICKER_MODE_BUTT
} hi_isp_antiflicker_mode;

Members

Restrictions

• In normal anti-flicker mode, the exposure time can be adjusted based on the luminance. The minimum exposure time is fixed at 1/120 sec (60 Hz) or 1/100 sec (50 Hz).

  − When there are lights, the exposure time can match the illuminant frequency, which avoids image flicker.

  − In high-luminance environments, higher luminance requires shorter exposure time. However, the minimum exposure time in normal anti-flicker mode cannot match the illuminant frequency to avoid overexposure.

• In automatic anti-flicker mode, the exposure time can be adjusted based on the luminance. The minimum exposure time can be the minimum exposure time of the sensor. The automatic anti-flicker mode differs from the normal anti-flicker mode in high-luminance environments. In high-luminance environments, the minimum exposure time can be the minimum exposure time of the sensor. This avoids overexposure, but anti-flicker does not work.