User manual
VIVOTEK
262 - User's Manual
* When "exposure_mode"=0, this 
value must be set to "-".
privacymask_wintype  rectangle, 
polygon, 
3Drectangle 
0/7  The supported mask window type. 
polygon: The window is a 2D polygon 
shape. 
rectangle: The window is a 2D 
rectangle shape. 
3Drectangle: The window is a 3D 
rectangle shape. 
privacymask_windomain  qvga, px, std, -  0/7  The domain to set an window. 
qvga: a 320x240 range to represent 
the whole image. 
px: Locate a window in the image with 
pixels. 
std: A normalized 0~9999 range. 
-: Not supported. 
privacymask_ncolor 
<PositiveInteger>
0/7  Available total color numbers of 
privacy mask. 
agc_maxgain "0,100", 
"-"
0/7 Available range for 
"videoin_c<n>_maxgain" 
“0,100” => 0~100 percent 
"-" means "videoin_c<n>_maxgain" is 
not available.
agc_mingain "0,100", 
"-"
0/7 Available range for 
"videoin_c<n>_mingain" 
“0,100” => 0~100 percent 
"-" means "videoin_c<n>_mingain" is 
not available.
flickerless 0,1 0/7 0: Non-support flickerless 
1: Support flickerless
flickerlessaffect  -,
minexposure:hidden:, 
mingain:hidden:, 
or others 
<x>: nonnegative integer 
<product dependent> 
0/7  When flickerless is enabled, some 
features may become malfunction or 
be forced to a given value. The 
affected functions are list here. 
The format is "Affect API 
name":"Policy":"Description" 
"Policy" can be categorized into 










