2023-08-29 17:08:51 +08:00
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#include "mainwindow.h"
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#include <QApplication>
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2023-08-30 20:59:44 +08:00
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#include <pthread.h>
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void *getTimerThreadFunc(void *arg); // 发送获取当前时间的 mplayer 命令
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void *readPipeMSG(void *arg); // 获取当前时间的线程
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2023-08-29 17:08:51 +08:00
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int main(int argc, char *argv[])
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{
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QApplication a(argc, argv);
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MainWindow w;
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w.show();
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2023-08-30 20:59:44 +08:00
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// pthread_t t1,t2; //
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// pthread_create(&t1,NULL,getTimerThreadFunc,(void*)&w);
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// pthread_create(&t2,NULL,readPipeMSG,(void*)&w);
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// pthread_join(t1,NULL);
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// pthread_join(t2,NULL);
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2023-08-29 17:08:51 +08:00
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return a.exec();
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}
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2023-08-30 20:59:44 +08:00
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void *getTimerThreadFunc(void *arg)
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{
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MainWindow *p = (MainWindow *)arg;
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while (1)
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{
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// 发送获取的当前时间的命令
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// 发送 get_time_pos 命令到管道中
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write(p->fifo_fd, "get_time_pos\n", strlen("get_time_pos\n"));
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usleep(500*1000); // 休眠 0.5 秒
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// 发送获取当前歌曲进度的命令
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write(p->fifo_fd,"get_percent_pos\n",strlen("get_percent_pos\n"));
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usleep(500*1000); // 休眠 0.5 秒
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}
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}
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void *readPipeMSG(void *arg)
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{
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MainWindow *p = (MainWindow *)arg;
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// 不停的获取无名管道的数据
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while (1)
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{
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char buf[256] = "";
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int ret = read(p->fd[0], buf, sizeof(buf)); // 从无名管道读取内容到 buf
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if(ret > 0)
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{
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// 判断消息的类型 :
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// 如果消息是 "当前歌曲播放时间位置"
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if(strncmp(buf,"ANS_TIME_POSITION",strlen("ANS_TIME_POSITION")) == 0)
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{
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int time = 0;
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sscanf(buf,"ANS_TIME_POSITION=%d",&time); // 从数据流 buf 中读取时间到 time
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// 给 UI 发送当前时间信号
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emit p->currentTimeSignal(time);
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}
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// 如果消息是 "当前歌曲播放进度"
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else if(strncmp(buf,"ANS_PERCENT_POSITION", strlen("ANS_PERCENT_POSITION")) == 0)
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{
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int currentProgress = 0;
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sscanf(buf, "ANS_PERCENT_POSITION=%d", ¤tProgress);
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// 给 UI 发送进度信号
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emit p->currentProgressSignal(currentProgress);
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}
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}
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}
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}
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