probe.c

足球机器人自动程序

#include <stdio.h>

#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/ioctl.h>
#include <linux/videodev.h>

#include "pwc-ioctl.h"

int main() {

	const char *dev = "/dev/video0";
	int fd = open(dev, O_RDONLY);
	if (fd < 0) {
		perror("open");
		return -1;
	}

	int compression;
	if (ioctl(fd, VIDIOCPWCGCQUAL, &compression) < 0) {
		perror("ioctl VIDIOCPWCGCQUAL");
		return -1;
	}
	printf("compression=%d (", compression);
	switch (compression) {
	case 0:
		printf("no)\n");
		break;
	case 1:
		printf("less)\n");
		break;
	case 2:
		printf("middle)\n");
		break;
	case 3:
		printf("high)\n");
	}

	int agc;
	if (ioctl(fd,  VIDIOCPWCGAGC, &agc) < 0) {
		perror("ioctl  VIDIOCPWCGAGC");
		return -1;
	}
	printf("agc=%d (", agc);
	if (agc < 0)
		printf("auto)\n");
	else
		printf("fixed)\n");

	struct pwc_whitebalance wb;
	if (ioctl(fd, VIDIOCPWCGAWB, &wb) < 0) {
		perror("ioctl VIDIOCPWCGAWB");
		return -1;
	}
	printf("white balance=");
	switch (wb.mode) {
		case PWC_WB_AUTO:
			printf("auto, red=%d, blue=%d\n", wb.read_red, wb.read_blue);
			break;
		case PWC_WB_MANUAL:
			printf("manual, red=%d, blue=%d\n", wb.manual_red, wb.manual_blue);
			break;
		case PWC_WB_INDOOR:
			printf("indoor\n");
			break;
		case  PWC_WB_OUTDOOR:
			printf("outdoor\n");
			break;
		case PWC_WB_FL:
			printf("fl\n");
	}

	struct pwc_wb_speed wbs;
	if (ioctl(fd, VIDIOCPWCGAWBSPEED, &wbs) < 0) {
		perror("ioctl VIDIOCPWCGAWBSPEED");
		return -1;
	}
	printf("white balance speed=%d, delay=%d\n", wbs.control_speed, wbs.control_delay);

	/*
	 VIDIOCPWCGLED
	 */
	int contour;
	if (ioctl(fd, VIDIOCPWCGCONTOUR, &contour) < 0) {
		perror("ioctl VIDIOCPWCGCONTOUR");
		return -1;
	}
	printf("contour=%d\n", contour);

	int bl;
	if (ioctl(fd, VIDIOCPWCGBACKLIGHT, &bl) < 0) {
		perror("ioctl VIDIOCPWCGBACKLIGHT");
		return -1;
	}
	printf("backlight compensation mode=%d (", bl);
	if (bl)
		printf("on)\n");
	else
		printf("off)\n");

	int af;
	if (ioctl(fd, VIDIOCPWCGFLICKER, &af) < 0) {
		perror("ioctl VIDIOCPWCGFLICKER ");
		return -1;
	}
	printf("anti-flicker=%d (", af);
	if (af) 
		printf("on)\n");
	else
		printf("off)\n");

	int noise;
	if (ioctl(fd, VIDIOCPWCGDYNNOISE, &noise) < 0) {
		perror("ioctl VIDIOCPWCGDYNNOISE");
		return -1;
	}
	printf("dynamic noise reduction=%d (", noise);
	switch (noise) {
	case 0:
		printf("none)\n");
		break;
	case 1:
		printf("less)\n");
		break;
	case 2:
		printf("middle)\n");
		break;
	case 3:
		printf("high)\n");
	}

	return 0;
}