static ArcHDRCommonAEParam ArcHDRCommonAEParams[] = {
/*
lux_min, lux_max, checkermode, c_min, c_max, drc_min, drc_max*/
//CommonAEParam
{250,    300,         1,       0.6,   0.8,   4.0,    8.0},
};
static ArcHDRParam ArcHDRParams[] = {
/*
tonelen, bright, saturation, contrast, capture_num, r_ev0, r_ev-, r_ev+*/
//REAR camera
{20,    -15,              5,       50,         3,    0,   -10,    6},
//FRONT camera
{1,       0,              0,        0,         2,    0,   -12,    0},
};

#################################################instructions###########################################################################
/*
instructions as followed:
if lux < lux_min
    dr_mode = hdr;
if lux > lux_max
    dr_mode = llhdr;
else
    dr_mode = checker's output

if checkermode == EV_AUTO  //automode
   ev0 ev- ev+ use data from checker
if checkermode == EV_MANUL  //manualmode
   ev0 ev- ev+ use data from config

if confval < c_min
   dr_mode disabled
if confval > c_max
   dr_mode enabled
*/