+ mixer->set_audio_level_callback(bind(&MainWindow::audio_level_callback, this, _1, _2, _3, _4, _5, _6, _7, _8));
+
+ struct sigaction act;
+ memset(&act, 0, sizeof(act));
+ act.sa_handler = schedule_cut_signal;
+ act.sa_flags = SA_RESTART;
+ sigaction(SIGHUP, &act, nullptr);
+
+ // Mostly for debugging. Don't override SIGINT, that's so evil if
+ // shutdown isn't instant.
+ memset(&act, 0, sizeof(act));
+ act.sa_handler = quit_signal;
+ act.sa_flags = SA_RESTART;
+ sigaction(SIGUSR1, &act, nullptr);
+}
+
+void MainWindow::mixer_shutting_down()
+{
+ ui->me_live->clean_context();
+ ui->me_preview->clean_context();
+ for (Ui::Display *display : previews) {
+ display->display->clean_context();
+ }
+}
+
+void MainWindow::cut_triggered()
+{
+ global_mixer->schedule_cut();
+}
+
+void MainWindow::x264_bitrate_triggered()
+{
+ bool ok;
+ int new_bitrate = QInputDialog::getInt(this, "Change x264 bitrate", "Choose new bitrate for x264 HTTP output (from 100–100,000 kbit/sec):", global_flags.x264_bitrate, /*min=*/100, /*max=*/100000, /*step=*/100, &ok);
+ if (ok && new_bitrate >= 100 && new_bitrate <= 100000) {
+ global_flags.x264_bitrate = new_bitrate;
+ global_mixer->change_x264_bitrate(new_bitrate);
+ }
+}
+
+void MainWindow::exit_triggered()
+{
+ close();
+}
+
+void MainWindow::about_triggered()
+{
+ AboutDialog().exec();
+}
+
+void MainWindow::input_mapping_triggered()
+{
+ InputMappingDialog().exec();
+}
+
+void MainWindow::gain_staging_knob_changed(int value)
+{
+ ui->gainstaging_auto_checkbox->setCheckState(Qt::Unchecked);
+
+ float gain_db = value * 0.1f;
+ global_mixer->get_audio_mixer()->set_gain_staging_db(gain_db);
+
+ // The label will be updated by the audio level callback.
+}
+
+void MainWindow::final_makeup_gain_knob_changed(int value)
+{
+ ui->makeup_gain_auto_checkbox->setCheckState(Qt::Unchecked);
+
+ float gain_db = value * 0.1f;
+ global_mixer->get_audio_mixer()->set_final_makeup_gain_db(gain_db);
+
+ // The label will be updated by the audio level callback.