linux驱动摄像头的代码,V4L2摄像头驱动及程序代码 GEC6818开发板

#include

#include

#include

#include

#include

#include

#include

#include

#include "jpeglib.h"

#include "api_v4l2.h"

#include

#include

#define LCD_WIDTH 800

#define LCD_HEIGHT 480

int *p = NULL;

int lcd_fd = -1;

int is_open_camera = 0;

int is_video_play = 0;

int is_vedio_record = 0;

int video_count=1;

FrameBuffer camera_buf;

int video_fd;

char bmp[3][10] =

{

"1.bmp",

"2.bmp",

"girl.bmp"

};

int lcd_open(void)

{

lcd_fd = open("/dev/fb0",O_RDWR);

if(lcd_fd < 0)

{

perror("lcd open failed");

return 0;

}

p = mmap(NULL, LCD_WIDTH*LCD_HEIGHT*4,

PROT_READ | PROT_WRITE,

MAP_SHARED,

lcd_fd,

0);

if