modify mplayerInit

mainwindow.cpp

@@ -67,17 +67,19 @@ void MainWindow::mplayerInit()
         // 重定向标准输出
         dup2(fd[1],1);
         // 使用 exec 启动 mplayer
-        execlp("mplayer","mplayer","-idle","-slave","-quiet","-input","file=fifo_cmd","./song/01.mp3",NULL);
+//        execlp("mplayer","mplayer","-idle","-slave","-quiet","/home/flykhan/qtmplayer/song/StopLove.mp3",NULL);
+        execlp("mplayer","mplayer","-idle","-slave","-quiet","-input","file=fifo_cmd","/home/flykhan/qtmplayer/song/StopLove.mp3",NULL);
         _exit(-1); // 异常退出
     }
     else if(pid>0) // 父进程
     {
         // 打开管道
         // 以写的方式打开(阻塞到某进程 以读的方式打开)
-        fifo_fd = open("fifo_cmd",O_WRONLY);
+        int fifo_fd = open("fifo_cmd",O_WRONLY);
         if(fifo_fd < 0){
             perror("open");
-            return 0;
+//            return 0;
+            _exit(-1);
         }
     }
 }