/* mpeg2trc.c, main() and parameter file reading                           
 */

#include <stdio.h>
#include <stdlib.h>
#include <sys/wait.h>
#include <unistd.h>
#include <unistd.h>
#include <string.h>

int main(argc,argv)
int argc;
char *argv[];
{
	char parfile[100],inm2v[100],outm2v[100],path[256];
	union wait status;
	int n,flag;
	n=0;
	flag=0;
    	if(argc < 4){
		printf("Usage: mpeg2 [option] parfile outfile infile");
		exit(1);
	}
	if(argc == 5 && !strcmp( argv[1],"-f")) {
        	n=1;
        	flag=1; 
	}	
	strcpy(parfile,(char*)argv[1+n]);
	strcpy(inm2v,(char*)argv[3+n]);
	strcpy(outm2v,(char*)argv[2+n]);
	if ((getcwd(path, 64)) == NULL)
               {
                    perror("pwd");
                    exit(2);
               }
	argv[0]=path;
	argv[1]=strrchr(path,'/');
	if(fork()==0)
		{    
			strcpy(argv[1],"/xdec/mpeg2decode");
    			argv[1]="-b";
   			argv[2]=inm2v;
   	 		argv[3]="-r";
                	argv[4]="-f";
    			argv[5]="-o0";
    	 		argv[6]="mid%d";
			argv[7]=(char *)malloc(2);
                	sprintf(argv[7],"%d",flag);
			execv(argv[0], argv);
             		_exit(1);
    		}
     	if(fork()==0)
		{
			strcpy(argv[1],"/xenc/mpeg2encode");
      			argv[1]=parfile;
                        argv[2]=outm2v;
			argv[3]=(char *)malloc(2);
                	sprintf(argv[3],"%d",flag);
			execv(argv[0], argv);
      			_exit(1);
    		}
    	wait((int*)&status);
	wait((int*)&status);
  	unlink("new0.U");
 	unlink("new0.Y");
 	unlink("new0.V");
        unlink("new0.P");
 	return 0;
}