hisi_SS524V100_SDK/mpp/sample/send_net/net_send.c

#include <linux/input.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdint.h>
#include <pthread.h> 
#include "keyboard.h"
#include <unistd.h>
#include <stdlib.h>
#include <sys/stat.h>
#include <string.h>  
#include <sys/socket.h>  
#include <netinet/in.h>  
#include <arpa/inet.h>  
#include <netdb.h>  
#include <unistd.h>
#include <sys/types.h>
#include <sys/time.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <arpa/inet.h>
#include <netdb.h>
#include "confile.h"
#include "Util.h"

//#define  KEY_EVENT_DEV0_NAME    "/dev/input/event0"
 
#define DEFAULT_MD_LEN 4096
//unsigned char key_value;

static pthread_t pkts_thread;

 int socket_descriptor;
 struct sockaddr_in address;

int fd_param;
int *buffer_param;
//int fd_param_uart;
//int *buffer_param_uart;
int *switch_video;
//int pre_switch_mode;
int switch_mode_pre=0;
int switch_mode=1;
int buffer[1024];

void * memmap(unsigned int phy_addr, unsigned int size);
void* pkts_worker(void *arg)
{

        printf("pkts_worker...\n");

	//int anjian_switch=0;

	//uint32_t ulOld;
        //int read_key;
        //void* pMem  = NULL;

	
        while(1)
        {

		sendto(socket_descriptor,buffer,13*4,0,(struct sockaddr *)&address,sizeof(address));
		//anjian_switch =count;
		//if(anjian_switch ==(switch_video+1)){
                //    anjian_switch =1;
                //}
		//sendto(socket_descriptor,buffer,13*4,0,(struct sockaddr *)&address,sizeof(address));
	//	printf("-------------%x\n",anjian_switch);
	//	sendto(socket_descriptor,&anjian_switch,4,0,(struct sockaddr *)&address,sizeof(address));
		sleep(2);
	
	}
}

int *switch_memory_open(void) {
        char buf[128];
        int fd;
        sprintf(buf, "/video_switch");
        fd = shm_open(buf, O_CREAT | O_RDWR, S_IRUSR | S_IWUSR);
        if(fd < 0) { perror("shm_open"); exit(1); }
         if (ftruncate(fd, 4096) == -1) { perror("ftruncate"); exit(1); }
        int *retval = mmap(NULL, 4096, PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0);
        return retval;
}



int main(int argc, char **argv)
{


	//int key_fd  = 0;
	//struct input_event key_event  = {0};
	//int ret;	
	int port;
	//int *switch_mode;
	int len;
	pthread_attr_t attr;
//	int *buffer;
	struct decoce_param param;


	fd_param = shm_open("/param.txt",O_RDWR|O_CREAT|O_EXCL,0777);
        if(fd_param < 0){
               fd_param = shm_open("/param.txt",O_RDWR,0777);
        }else
                ftruncate(fd_param,4096);
        buffer_param= mmap(NULL,4096,PROT_READ|PROT_WRITE,MAP_SHARED,fd_param,0);

	//switch_video = 6;

	bzero(&address,sizeof(address));  
    	address.sin_family=AF_INET;  
    	address.sin_addr.s_addr=inet_addr(argv[1]);
    	port = atoi(argv[2]);
    	address.sin_port=htons(port);  
  
    	socket_descriptor=socket(AF_INET,SOCK_DGRAM,0);//IPV4

	//switch_video = atoi(argv[3]);

//	int flag_down=0;
//	int count_down=0;

#if 1
	pthread_attr_init(&attr);
    	pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
    	len = pthread_create(&pkts_thread, &attr, pkts_worker, NULL);
    	pthread_attr_destroy(&attr);
#endif
	switch_video= switch_memory_open();

	buffer[0]= 0x11;
	//switch_mode[0] = 0x01;	
	//switch_mode[0] = param.sdi_switch;	
	//count = param.sdi_switch;
	//switch_mode[1] = param.osd_on;	
	//switch_mode[3] = param.light;	
	//osd_on =  param.osd_on;
	//light = param.light;
	//buffer[0] = 0x11;
	//printf("switch_mode[0] %x \n",switch_mode[0]);
	//	 for(int i=0;i<21;i++){
	//		 printf("%x",switch_mode[i]);
		 
	//	 }
	//	 printf("\n");
	
//	printf("++++\n");
	switch_mode_pre = switch_mode;
	while(1)
	{
		//printf("while \n");
		switch_mode =switch_video[0];
	//	printf("switch_mode %x\n",switch_mode);
		memcpy(buffer+1,switch_video,24);
		memcpy(buffer+7,buffer_param,24);
		//printf("----");
#if 1
		 if(switch_mode != switch_mode_pre){
                        printf("hello\n");
                        printf("++++++%x \n",switch_mode);
                //      SAMPLE_VDEC_VPSS_VO_SET_MODE(switch_mode);
                        switch_mode_pre = switch_mode;
                
			memcpy(buffer+1,switch_video,24);
			memcpy(buffer+7,buffer_param,24);
		 
		 	sendto(socket_descriptor,buffer,13*4,0,(struct sockaddr *)&address,sizeof(address));
		 }

#endif
		
		sleep(1);
		//sendto(socket_descriptor,switch_mode,40,0,(struct sockaddr *)&address,sizeof(address));
		//usleep(500000);
	//	sendto(socket_descriptor,buffer_param,20,0,(struct sockaddr *)&address,sizeof(address));


	}
 
}