hi_isp_ae_delay

Defines the AE delay attribute.

typedef struct {
    hi_u16 black_delay_frame; 
    hi_u16 white_delay_frame;
} hi_isp_ae_delay;

Member	Description
black_delay_frame	AE adjustment starts when the image luminance is less than the target luminance for black_delay_frame frames.
white_delay_frame	AE adjustment starts when the image luminance is greater than the target luminance for white_delay_frame frames.

When the AE adjustment step is the same, larger values of black_delay_frame and white_delay_frame indicate longer time for adjusting the luminance to the target value.
Human eyes are sensitive to overexposure. It is recommended that the value of white_delay_frame be less than black_delay_frame.
When a fixed frame rate is decreased, if the frame rate is too low, the values of black_delay_frame and white_delay_frame must be adjusted. You are advised not to set their values to too large values. Otherwise, the AE convergence takes long time.

Parent topic: Data Types