+
+ global_disk_space_estimator = new DiskSpaceEstimator(bind(&MainWindow::report_disk_space, this, _1, _2));
+ disk_free_label = new QLabel(this);
+ disk_free_label->setStyleSheet("QLabel {padding-right: 5px;}");
+ ui->menuBar->setCornerWidget(disk_free_label);
+
+ ui->me_live->set_output(Mixer::OUTPUT_LIVE);
+ ui->me_preview->set_output(Mixer::OUTPUT_PREVIEW);
+
+ // The menus.
+ connect(ui->cut_action, &QAction::triggered, this, &MainWindow::cut_triggered);
+ connect(ui->exit_action, &QAction::triggered, this, &MainWindow::exit_triggered);
+ connect(ui->about_action, &QAction::triggered, this, &MainWindow::about_triggered);
+ connect(ui->input_mapping_action, &QAction::triggered, this, &MainWindow::input_mapping_triggered);
+
+ if (global_flags.x264_video_to_http) {
+ connect(ui->x264_bitrate_action, &QAction::triggered, this, &MainWindow::x264_bitrate_triggered);
+ } else {
+ ui->x264_bitrate_action->setEnabled(false);
+ }
+
+ // Hook up the transition buttons. (Keyboard shortcuts are set in set_transition_names().)
+ // TODO: Make them dynamic.
+ connect(ui->transition_btn1, &QPushButton::clicked, bind(&MainWindow::transition_clicked, this, 0));
+ connect(ui->transition_btn2, &QPushButton::clicked, bind(&MainWindow::transition_clicked, this, 1));
+ connect(ui->transition_btn3, &QPushButton::clicked, bind(&MainWindow::transition_clicked, this, 2));
+
+ // Aiee...
+ transition_btn1 = ui->transition_btn1;
+ transition_btn2 = ui->transition_btn2;
+ transition_btn3 = ui->transition_btn3;
+ qRegisterMetaType<string>("std::string");
+ qRegisterMetaType<vector<string>>("std::vector<std::string>");
+ connect(ui->me_live, &GLWidget::transition_names_updated, this, &MainWindow::set_transition_names);
+ qRegisterMetaType<Mixer::Output>("Mixer::Output");
+
+ // Hook up the prev/next buttons on the audio views.
+ connect(ui->compact_prev_page, &QAbstractButton::clicked, bind(&QStackedWidget::setCurrentIndex, ui->audio_views, 1));
+ connect(ui->compact_next_page, &QAbstractButton::clicked, bind(&QStackedWidget::setCurrentIndex, ui->audio_views, 1));
+ connect(ui->full_prev_page, &QAbstractButton::clicked, bind(&QStackedWidget::setCurrentIndex, ui->audio_views, 0));
+ connect(ui->full_next_page, &QAbstractButton::clicked, bind(&QStackedWidget::setCurrentIndex, ui->audio_views, 0));
+
+ last_audio_level_callback = steady_clock::now() - seconds(1);
+}
+
+void MainWindow::resizeEvent(QResizeEvent* event)
+{
+ QMainWindow::resizeEvent(event);
+
+ // Ask for a relayout, but only after the event loop is done doing relayout
+ // on everything else.
+ QMetaObject::invokeMethod(this, "relayout", Qt::QueuedConnection);
+}
+
+void MainWindow::mixer_created(Mixer *mixer)
+{
+ // Make the previews.
+ unsigned num_previews = mixer->get_num_channels();
+
+ for (unsigned i = 0; i < num_previews; ++i) {
+ Mixer::Output output = Mixer::Output(Mixer::OUTPUT_INPUT0 + i);
+
+ QWidget *preview = new QWidget(this);
+ Ui::Display *ui_display = new Ui::Display;
+ ui_display->setupUi(preview);
+ ui_display->label->setText(mixer->get_channel_name(output).c_str());
+ ui_display->display->set_output(output);
+ ui->preview_displays->insertWidget(previews.size(), preview, 1);
+ previews.push_back(ui_display);
+
+ // Hook up the click.
+ connect(ui_display->display, &GLWidget::clicked, bind(&MainWindow::channel_clicked, this, i));
+
+ // Let the theme update the text whenever the resolution or color changed.
+ connect(ui_display->display, &GLWidget::name_updated, this, &MainWindow::update_channel_name);
+ connect(ui_display->display, &GLWidget::color_updated, this, &MainWindow::update_channel_color);
+
+ // Hook up the keyboard key.
+ QShortcut *shortcut = new QShortcut(QKeySequence(Qt::Key_1 + i), this);
+ connect(shortcut, &QShortcut::activated, bind(&MainWindow::channel_clicked, this, i));
+
+ // Hook up the white balance button (irrelevant if invisible).
+ ui_display->wb_button->setVisible(mixer->get_supports_set_wb(output));
+ connect(ui_display->wb_button, &QPushButton::clicked, bind(&MainWindow::wb_button_clicked, this, i));
+ }
+
+ setup_audio_miniview();
+ setup_audio_expanded_view();
+
+ slave_knob(ui->locut_cutoff_knob, ui->locut_cutoff_knob_2);
+ slave_knob(ui->limiter_threshold_knob, ui->limiter_threshold_knob_2);
+ slave_knob(ui->makeup_gain_knob, ui->makeup_gain_knob_2);
+ slave_checkbox(ui->makeup_gain_auto_checkbox, ui->makeup_gain_auto_checkbox_2);
+ slave_checkbox(ui->limiter_enabled, ui->limiter_enabled_2);
+
+ // TODO: Fetch all of the values these for completeness,
+ // not just the enable knobs implied by flags.
+#if 0
+ // TODO: Reenable for simple audio.
+ ui->locut_enabled->setChecked(global_mixer->get_audio_mixer()->get_locut_enabled(0));
+ connect(ui->locut_enabled, &QCheckBox::stateChanged, [this](int state){
+ global_mixer->get_audio_mixer()->set_locut_enabled(0, state == Qt::Checked);
+ });
+ ui->gainstaging_knob->setValue(global_mixer->get_audio_mixer()->get_gain_staging_db());
+ ui->gainstaging_auto_checkbox->setChecked(global_mixer->get_audio_mixer()->get_gain_staging_auto());
+ ui->compressor_enabled->setChecked(global_mixer->get_audio_mixer()->get_compressor_enabled());
+ connect(ui->gainstaging_knob, &QAbstractSlider::valueChanged, this, &MainWindow::gain_staging_knob_changed);
+ connect(ui->gainstaging_auto_checkbox, &QCheckBox::stateChanged, [this](int state){
+ global_mixer->get_audio_mixer()->set_gain_staging_auto(state == Qt::Checked);
+ });
+ ui->compressor_threshold_db_display->setText(
+ QString::fromStdString(format_db(mixer->get_audio_mixer()->get_compressor_threshold_dbfs(), DB_WITH_SIGN)));
+ ui->compressor_threshold_db_display->setText(buf);
+ connect(ui->compressor_threshold_knob, &QDial::valueChanged, this, &MainWindow::compressor_threshold_knob_changed);
+ connect(ui->compressor_enabled, &QCheckBox::stateChanged, [this](int state){
+ global_mixer->get_audio_mixer()->set_compressor_enabled(state == Qt::Checked);
+ });
+#else
+ ui->locut_enabled->setVisible(false);
+ ui->gainstaging_label->setVisible(false);
+ ui->gainstaging_knob->setVisible(false);
+ ui->gainstaging_db_display->setVisible(false);
+ ui->gainstaging_auto_checkbox->setVisible(false);
+ ui->compressor_threshold_label->setVisible(false);
+ ui->compressor_threshold_knob->setVisible(false);
+ ui->compressor_threshold_db_display->setVisible(false);
+ ui->compressor_enabled->setVisible(false);
+#endif
+ ui->limiter_enabled->setChecked(global_mixer->get_audio_mixer()->get_limiter_enabled());
+ ui->makeup_gain_auto_checkbox->setChecked(global_mixer->get_audio_mixer()->get_final_makeup_gain_auto());
+
+ QString limiter_threshold_label(
+ QString::fromStdString(format_db(mixer->get_audio_mixer()->get_limiter_threshold_dbfs(), DB_WITH_SIGN)));
+ ui->limiter_threshold_db_display->setText(limiter_threshold_label);
+ ui->limiter_threshold_db_display_2->setText(limiter_threshold_label);
+
+ connect(ui->locut_cutoff_knob, &QDial::valueChanged, this, &MainWindow::cutoff_knob_changed);
+ cutoff_knob_changed(ui->locut_cutoff_knob->value());
+
+ connect(ui->makeup_gain_knob, &QAbstractSlider::valueChanged, this, &MainWindow::final_makeup_gain_knob_changed);
+ connect(ui->makeup_gain_auto_checkbox, &QCheckBox::stateChanged, [this](int state){
+ global_mixer->get_audio_mixer()->set_final_makeup_gain_auto(state == Qt::Checked);
+ });
+
+ connect(ui->limiter_threshold_knob, &QDial::valueChanged, this, &MainWindow::limiter_threshold_knob_changed);
+ connect(ui->limiter_enabled, &QCheckBox::stateChanged, [this](int state){
+ global_mixer->get_audio_mixer()->set_limiter_enabled(state == Qt::Checked);
+ });
+ connect(ui->reset_meters_button, &QPushButton::clicked, this, &MainWindow::reset_meters_button_clicked);
+ mixer->get_audio_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::setup_audio_miniview()
+{
+ // Remove any existing channels.
+ for (QLayoutItem *item; (item = ui->faders->takeAt(0)) != nullptr; ) {
+ delete item->widget();
+ delete item;
+ }
+ audio_miniviews.clear();
+
+ // Set up brand new ones from the input mapping.
+ InputMapping mapping = global_mixer->get_audio_mixer()->get_input_mapping();
+ audio_miniviews.resize(mapping.buses.size());
+ for (unsigned bus_index = 0; bus_index < mapping.buses.size(); ++bus_index) {
+ QWidget *channel = new QWidget(this);
+ Ui::AudioMiniView *ui_audio_miniview = new Ui::AudioMiniView;
+ ui_audio_miniview->setupUi(channel);
+ ui_audio_miniview->bus_desc_label->setFullText(
+ QString::fromStdString(mapping.buses[bus_index].name));
+ audio_miniviews[bus_index] = ui_audio_miniview;
+
+ // Set up the peak meter.
+ VUMeter *peak_meter = ui_audio_miniview->peak_meter;
+ peak_meter->set_min_level(-30.0f);
+ peak_meter->set_max_level(0.0f);
+ peak_meter->set_ref_level(0.0f);
+
+ // TODO: Set the fader position.
+ ui->faders->addWidget(channel);
+
+ connect(ui_audio_miniview->fader, &NonLinearFader::dbValueChanged,
+ bind(&MainWindow::mini_fader_changed, this, bus_index, _1));
+ connect(ui_audio_miniview->peak_display_label, &ClickableLabel::clicked,
+ [bus_index]() {
+ global_mixer->get_audio_mixer()->reset_peak(bus_index);
+ });
+ }
+}
+
+void MainWindow::setup_audio_expanded_view()
+{
+ // Remove any existing channels.
+ for (QLayoutItem *item; (item = ui->buses->takeAt(0)) != nullptr; ) {
+ delete item->widget();
+ delete item;
+ }
+ audio_expanded_views.clear();
+
+ // Set up brand new ones from the input mapping.
+ InputMapping mapping = global_mixer->get_audio_mixer()->get_input_mapping();
+ audio_expanded_views.resize(mapping.buses.size());
+ for (unsigned bus_index = 0; bus_index < mapping.buses.size(); ++bus_index) {
+ QWidget *channel = new QWidget(this);
+ Ui::AudioExpandedView *ui_audio_expanded_view = new Ui::AudioExpandedView;
+ ui_audio_expanded_view->setupUi(channel);
+ ui_audio_expanded_view->bus_desc_label->setFullText(
+ QString::fromStdString(mapping.buses[bus_index].name));
+ audio_expanded_views[bus_index] = ui_audio_expanded_view;
+ // TODO: Set the fader position.
+ ui->buses->addWidget(channel);
+
+ ui_audio_expanded_view->locut_enabled->setChecked(global_mixer->get_audio_mixer()->get_locut_enabled(bus_index));
+ connect(ui_audio_expanded_view->locut_enabled, &QCheckBox::stateChanged, [this, bus_index](int state){
+ global_mixer->get_audio_mixer()->set_locut_enabled(bus_index, state == Qt::Checked);
+ });
+
+ ui_audio_expanded_view->gainstaging_knob->setValue(global_mixer->get_audio_mixer()->get_gain_staging_db(bus_index));
+ ui_audio_expanded_view->gainstaging_auto_checkbox->setChecked(global_mixer->get_audio_mixer()->get_gain_staging_auto(bus_index));
+ ui_audio_expanded_view->compressor_enabled->setChecked(global_mixer->get_audio_mixer()->get_compressor_enabled(bus_index));
+
+ connect(ui_audio_expanded_view->gainstaging_knob, &QAbstractSlider::valueChanged, bind(&MainWindow::gain_staging_knob_changed, this, bus_index, _1));
+ connect(ui_audio_expanded_view->gainstaging_auto_checkbox, &QCheckBox::stateChanged, [this, bus_index](int state){
+ global_mixer->get_audio_mixer()->set_gain_staging_auto(bus_index, state == Qt::Checked);
+ });
+
+ connect(ui_audio_expanded_view->compressor_threshold_knob, &QDial::valueChanged, bind(&MainWindow::compressor_threshold_knob_changed, this, bus_index, _1));
+ connect(ui_audio_expanded_view->compressor_enabled, &QCheckBox::stateChanged, [this, bus_index](int state){
+ global_mixer->get_audio_mixer()->set_compressor_enabled(bus_index, state == Qt::Checked);
+ });
+
+ slave_fader(audio_miniviews[bus_index]->fader, ui_audio_expanded_view->fader);
+
+ // Set up the peak meter.
+ VUMeter *peak_meter = ui_audio_expanded_view->peak_meter;
+ peak_meter->set_min_level(-30.0f);
+ peak_meter->set_max_level(0.0f);
+ peak_meter->set_ref_level(0.0f);
+
+ connect(ui_audio_expanded_view->peak_display_label, &ClickableLabel::clicked,
+ [bus_index]() {
+ global_mixer->get_audio_mixer()->reset_peak(bus_index);
+ });
+
+ // Set up the compression attenuation meter.
+ VUMeter *reduction_meter = ui_audio_expanded_view->reduction_meter;
+ reduction_meter->set_min_level(0.0f);
+ reduction_meter->set_max_level(10.0f);
+ reduction_meter->set_ref_level(0.0f);
+ reduction_meter->set_flip(true);
+ }
+}
+
+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();