usb_cam::util Namespace Reference

Namespaces
	converters

Functions
unsigned char	CLIPVALUE (const int &val)
time_t	get_epoch_time_shift ()
	Get epoch time shift. More...
int	xioctl (int fd, int request, void *arg)

Function Documentation

CLIPVALUE()

unsigned char usb_cam::util::CLIPVALUE

(

const int &

val

)

Clip a value to the range 0<val<255. For speed this is done using an array, so can only cope with numbers in the range -128<=val<=383.

Definition at line 35 of file util.cpp.

get_epoch_time_shift()

time_t usb_cam::util::get_epoch_time_shift

(

)

Get epoch time shift.

Run this at start of process to calculate epoch time shift https://stackoverflow.com/questions/10266451/where-does-v4l2-buffer-timestamp-value-starts-counting

Definition at line 52 of file util.cpp.

xioctl()

int usb_cam::util::xioctl	(	int	fd,
		int	request,
		void *	arg
	)

Definition at line 23 of file util.cpp.