1.添加positioning
2.添加控件,修改名称,修改最大值提升精度
3.
在类xplay2中添加
void Xplay2::timerEvent(QTimerEvent* e) { long long total = dt.totalMs; qDebug() << "total: " << total << endl; if (total > 0) { //当前解码到的pts除以总pts,是个比例 double pos = (double)dt.pts / (double)total; qDebug()<< "pos: " << pos << endl; int v = ui.playPos->maximum() * pos; ui.playPos->setValue(v); } }
在xplay的构造函数中添加定时器
Xplay2::Xplay2(QWidget *parent) : QWidget(parent) { ui.setupUi(this); dt.start(); startTimer(40); }
让控件刷新与视频同步(fps=25)