norm 
 
-  Type: Discrete Strings
-  Range / Valid values: 0 (PAL), 1 (NTSC), 2 (SECAM), 3 (PAL NC no colour)
-  Default: 0 (PAL)
-  Group: Video Devices
Select the norm of the video device. Values: 0 (PAL), 1 (NTSC), 2 (SECAM), 3 (PAL NC no colour). Default: 0 (PAL), Select the norm of the video device. Values: 0 (PAL), 1 (NTSC), 2 (SECAM), 3 (PAL NC no colour). Default: 0 (PAL)
This value is only used for capture cards using the 
BTTV driver.