攝像頭+mjpg-streamer的配置
sudo apt-get install libjpeg8-dev #JPEG支持庫
sudo apt-get install imagemagick
sudo apt-get install libv4l-dev #4l是小寫"L"
sudo apt-get install cmake #下載編譯工具
1.安裝GIT
sudo apt-get install git
git clone https://github.com/jacksonliam/mjpg-streamer.git
3.進入下載目錄后進入左側路徑
cd mjpg-streamer/mjpg-streamer-experimental
4.編譯
make all
5.安裝
sudo make install
6.執行腳本程式
./start.sh
7.在瀏覽器輸入 http://IP地址:8080，回車 顯示如下頁面，點擊頁面左側，Stream欄，顯示監視畫面
攝像頭代碼
進入mjpg檔案夾 cd mjpg-streamer/mjpg-streamer-experimental 在里面寫代碼(也可以在桌面，但是system要加腳本的絕對路徑)，
我是直接在里面寫代碼然后直接呼叫當前目錄下的start.sh
void cameraCrl()
{
system("./start.sh");
}
完整代碼
服務端代碼：
#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庫初始化
{
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服務端初始化
{
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() //服務端執行緒
{
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("開門");
}else if(strcmp(cmd,"g") == 0)
{
digitalWrite (7, HIGH);
printf("關門");
}
else if(strcmp(cmd,"a") == 0)
{
digitalWrite (1, LOW);
printf("開燈");
}
else if(strcmp(cmd,"b") == 0)
{
digitalWrite (1, HIGH);
printf("關燈");
}
}
}
}
}
void cameraCrl() //攝像頭執行緒
{
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;
}
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