8 VUMeter::VUMeter(QWidget *parent)
13 void VUMeter::paintEvent(QPaintEvent *event)
15 QPainter painter(this);
19 unique_lock<mutex> lock(level_mutex);
20 level_lufs = this->level_lufs;
23 float level_lu = level_lufs + 23.0f;
24 draw_vu_meter(painter, -HUGE_VAL, level_lu, width(), height(), 0);