摄像头+mjpg-streamer的配置
sudo apt-get install libjpeg8-dev #JPEG支持库
sudo apt-get install imagemagick
sudo apt-get install libv4l-dev #4l是小写"L"
sudo apt-get install cmake #下载编译工具
1.安装GIT
sudo apt-get install git
git clone https://github.com/jacksonliam/mjpg-streamer.git
3.进入下载目录后进入左侧路径
cd mjpg-streamer/mjpg-streamer-experimental
4.编译
make all
5.安装
sudo make install
6.执行脚本程序
./start.sh
7.在浏览器输入 http://IP地址:8080，回车 显示如下页面，点击页面左侧，Stream栏，显示监视画面
摄像头代码
进入mjpg文件夹 cd mjpg-streamer/mjpg-streamer-experimental 在里面写代码(也可以在桌面，但是system要加脚本的绝对路径)。
我是直接在里面写代码然后直接调用当前目录下的start.sh
void cameraCrl()
{
system("./start.sh");
}
完整代码
服务端代码：
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>
#include <wiringPi.h>
#include <stdlib.h>
#include <string.h>
#include <wiringSerial.h>
#include <pthread.h>
#include <sys/socket.h>
#include <arpa/inet.h>
#include <netinet/in.h>
#include <unistd.h>
int s_fd;
struct sockaddr_in s_addr;
void WiringPi_Init() //wiringPi库初始化
{
if(wiringPiSetup()==-1)
{
printf("setup fail\n");
exit(-1);
}
pinMode(7,OUTPUT);
digitalWrite (7, HIGH);
pinMode(1,OUTPUT);
digitalWrite (1, HIGH);
}
int ftpServer_Init(char **argv) //socket服务端初始化
{
memset(&s_addr,0,sizeof(struct sockaddr_in));
s_fd = socket(AF_INET,SOCK_STREAM,0);
if(s_fd == -1)
{
perror("socket\n");
exit(-1);
}
s_addr.sin_family = AF_INET;
s_addr.sin_port = htons(atoi(argv[2]));
inet_aton(argv[1],&s_addr.sin_addr);
bind(s_fd,(struct sockaddr *)&s_addr,sizeof(struct sockaddr_in));
listen(s_fd,10);
return s_fd;
}
void ftpServer_Crl() //服务端线程
{
int reg;
char cmd[64];
int c_fd;
struct sockaddr_in c_addr;
memset(&c_addr,0,sizeof(struct sockaddr_in));
int clen = sizeof(struct sockaddr_in);
while(1)
{
c_fd = accept(s_fd,(struct sockaddr *)&c_addr,&clen);
if(c_fd == -1)
{
perror("accept\n");
}
printf("get connect: %s\n",inet_ntoa(c_addr.sin_addr));
if(fork() == 0)
{
while(1)
{
memset(&cmd,'\0',sizeof(cmd));
read(c_fd,cmd,sizeof(cmd));
if(strcmp(cmd,"k") == 0)
{
digitalWrite (7, LOW);
printf("开门");
}else if(strcmp(cmd,"g") == 0)
{
digitalWrite (7, HIGH);
printf("关门");
}
else if(strcmp(cmd,"a") == 0)
{
digitalWrite (1, LOW);
printf("开灯");
}
else if(strcmp(cmd,"b") == 0)
{
digitalWrite (1, HIGH);
printf("关灯");
}
}
}
}
}
void cameraCrl() //摄像头线程
{
system("./start.sh");
}
int main(int argc,char **argv)
{
pthread_t th1;
pthread_t th2;
WiringPi_Init();
if(argc != 3)
{
printf("param no three\n");
exit(-1);
}
ftpServer_Init(argv);
pthread_create(&th2,NULL,(void *)ftpServer_Crl,NULL);
pthread_create(&th1,NULL,(void *)cameraCrl,NULL);
pthread_join(th1,NULL);
pthread_join(th2,NULL);
return 0;
}