+
+ 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);
+
+ QActionGroup *audio_mapping_group = new QActionGroup(this);
+ ui->simple_audio_mode->setActionGroup(audio_mapping_group);
+ ui->multichannel_audio_mode->setActionGroup(audio_mapping_group);
+
+ 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->manual_action, &QAction::triggered, this, &MainWindow::manual_triggered);
+ connect(ui->about_action, &QAction::triggered, this, &MainWindow::about_triggered);
+ connect(ui->open_analyzer_action, &QAction::triggered, this, &MainWindow::open_analyzer_triggered);
+ connect(ui->simple_audio_mode, &QAction::triggered, this, &MainWindow::simple_audio_mode_triggered);
+ connect(ui->multichannel_audio_mode, &QAction::triggered, this, &MainWindow::multichannel_audio_mode_triggered);
+ connect(ui->input_mapping_action, &QAction::triggered, this, &MainWindow::input_mapping_triggered);
+ connect(ui->midi_mapping_action, &QAction::triggered, this, &MainWindow::midi_mapping_triggered);
+ connect(ui->timecode_stream_action, &QAction::triggered, this, &MainWindow::timecode_stream_triggered);
+ connect(ui->timecode_stdout_action, &QAction::triggered, this, &MainWindow::timecode_stdout_triggered);
+
+ ui->timecode_stream_action->setChecked(global_flags.display_timecode_in_stream);
+ ui->timecode_stdout_action->setChecked(global_flags.display_timecode_on_stdout);
+
+ if (global_flags.x264_video_to_http && isinf(global_flags.x264_crf)) {
+ connect(ui->x264_bitrate_action, &QAction::triggered, this, &MainWindow::x264_bitrate_triggered);
+ } else {
+ ui->x264_bitrate_action->setEnabled(false);
+ }
+
+ connect(ui->video_menu, &QMenu::aboutToShow, [this]{
+ fill_hdmi_sdi_output_device_menu(ui->hdmi_sdi_output_device_menu);
+ fill_hdmi_sdi_output_resolution_menu(ui->hdmi_sdi_output_resolution_menu);
+ });
+
+ // 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.
+ auto prev_page = [this]{
+ if (global_audio_mixer->get_mapping_mode() == AudioMixer::MappingMode::MULTICHANNEL) {
+ ui->audio_views->setCurrentIndex((ui->audio_views->currentIndex() + 2) % 3);
+ } else {
+ ui->audio_views->setCurrentIndex(2 - ui->audio_views->currentIndex()); // Switch between 0 and 2.
+ }
+ };
+ auto next_page = [this]{
+ if (global_audio_mixer->get_mapping_mode() == AudioMixer::MappingMode::MULTICHANNEL) {
+ ui->audio_views->setCurrentIndex((ui->audio_views->currentIndex() + 1) % 3);
+ } else {
+ ui->audio_views->setCurrentIndex(2 - ui->audio_views->currentIndex()); // Switch between 0 and 2.
+ }
+ };
+ connect(ui->compact_prev_page, &QAbstractButton::clicked, prev_page);
+ connect(ui->compact_next_page, &QAbstractButton::clicked, next_page);
+ connect(ui->full_prev_page, &QAbstractButton::clicked, prev_page);
+ connect(ui->full_next_page, &QAbstractButton::clicked, next_page);
+ connect(ui->video_grid_prev_page, &QAbstractButton::clicked, prev_page);
+ connect(ui->video_grid_next_page, &QAbstractButton::clicked, next_page);
+
+ // And bind the same to PgUp/PgDown.
+ connect(new QShortcut(QKeySequence::MoveToNextPage, this), &QShortcut::activated, next_page);
+ connect(new QShortcut(QKeySequence::MoveToPreviousPage, this), &QShortcut::activated, prev_page);
+
+ // When the audio view changes, move the previews.
+ connect(ui->audio_views, &QStackedWidget::currentChanged, bind(&MainWindow::audio_view_changed, this, _1));
+
+ if (global_flags.enable_quick_cut_keys) {
+ ui->quick_cut_enable_action->setChecked(true);
+ }
+ connect(ui->quick_cut_enable_action, &QAction::changed, [this](){
+ global_flags.enable_quick_cut_keys = ui->quick_cut_enable_action->isChecked();
+ });
+
+ last_audio_level_callback = steady_clock::now() - seconds(1);
+
+ if (!global_flags.midi_mapping_filename.empty()) {
+ MIDIMappingProto midi_mapping;
+ if (!load_midi_mapping_from_file(global_flags.midi_mapping_filename, &midi_mapping)) {
+ fprintf(stderr, "Couldn't load MIDI mapping '%s'; exiting.\n",
+ global_flags.midi_mapping_filename.c_str());
+ exit(1);
+ }
+ midi_mapper.set_midi_mapping(midi_mapping);
+ }
+ midi_mapper.refresh_highlights();
+ midi_mapper.refresh_lights();
+}
+
+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();
+
+ const char qwerty[] = "QWERTYUIOP";
+ for (unsigned i = 0; i < num_previews; ++i) {
+ Mixer::Output output = Mixer::Output(Mixer::OUTPUT_INPUT0 + i);
+
+ QWidget *preview = new QWidget(this); // Will be connected to a layout immediately after the loop.
+ 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);
+ 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 = nullptr;
+ if (i < 9) {
+ shortcut = new QShortcut(QKeySequence(Qt::Key_1 + i), this);
+ } else if (i == 9) {
+ shortcut = new QShortcut(QKeySequence(Qt::Key_0), this);
+ }
+ if (shortcut != nullptr) {
+ connect(shortcut, &QShortcut::activated, bind(&MainWindow::channel_clicked, this, i));
+ }
+
+ // Hook up the quick-cut key.
+ if (i < strlen(qwerty)) {
+ QShortcut *shortcut = new QShortcut(QKeySequence(qwerty[i]), this);
+ connect(shortcut, &QShortcut::activated, bind(&MainWindow::quick_cut_activated, 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));
+ }
+
+ // Connect the previews to the correct layout.
+ audio_view_changed(ui->audio_views->currentIndex());
+
+ global_audio_mixer->set_state_changed_callback(bind(&MainWindow::audio_state_changed, this));
+
+ 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);
+
+ reset_audio_mapping_ui();
+
+ // TODO: Fetch all of the values these for completeness,
+ // not just the enable knobs implied by flags.
+ ui->limiter_enabled->setChecked(global_audio_mixer->get_limiter_enabled());
+ ui->makeup_gain_auto_checkbox->setChecked(global_audio_mixer->get_final_makeup_gain_auto());
+
+ // Controls used only for simple audio fetch their state from the first bus.
+ constexpr unsigned simple_bus_index = 0;
+ if (global_audio_mixer->get_mapping_mode() == AudioMixer::MappingMode::SIMPLE) {
+ ui->locut_enabled->setChecked(global_audio_mixer->get_locut_enabled(simple_bus_index));
+ ui->gainstaging_knob->setValue(global_audio_mixer->get_gain_staging_db(simple_bus_index));
+ ui->gainstaging_auto_checkbox->setChecked(global_audio_mixer->get_gain_staging_auto(simple_bus_index));
+ ui->compressor_enabled->setChecked(global_audio_mixer->get_compressor_enabled(simple_bus_index));
+ ui->compressor_threshold_db_display->setText(
+ QString::fromStdString(format_db(mixer->get_audio_mixer()->get_compressor_threshold_dbfs(simple_bus_index), DB_WITH_SIGN)));
+ }
+ connect(ui->locut_enabled, &QCheckBox::stateChanged, [this](int state){
+ global_audio_mixer->set_locut_enabled(simple_bus_index, state == Qt::Checked);
+ midi_mapper.refresh_lights();
+ });
+ connect(ui->gainstaging_knob, &QAbstractSlider::valueChanged,
+ bind(&MainWindow::gain_staging_knob_changed, this, simple_bus_index, _1));
+ connect(ui->gainstaging_auto_checkbox, &QCheckBox::stateChanged, [this](int state){
+ global_audio_mixer->set_gain_staging_auto(simple_bus_index, state == Qt::Checked);
+ midi_mapper.refresh_lights();
+ });
+ connect(ui->compressor_threshold_knob, &QDial::valueChanged,
+ bind(&MainWindow::compressor_threshold_knob_changed, this, simple_bus_index, _1));
+ connect(ui->compressor_enabled, &QCheckBox::stateChanged, [this](int state){
+ global_audio_mixer->set_compressor_enabled(simple_bus_index, state == Qt::Checked);
+ midi_mapper.refresh_lights();
+ });
+
+ // Global mastering controls.
+ 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_audio_mixer->set_final_makeup_gain_auto(state == Qt::Checked);
+ midi_mapper.refresh_lights();
+ });
+
+ connect(ui->limiter_threshold_knob, &QDial::valueChanged, this, &MainWindow::limiter_threshold_knob_changed);
+ connect(ui->limiter_enabled, &QCheckBox::stateChanged, [this](int state){
+ global_audio_mixer->set_limiter_enabled(state == Qt::Checked);
+ midi_mapper.refresh_lights();
+ });
+ connect(ui->reset_meters_button, &QPushButton::clicked, this, &MainWindow::reset_meters_button_clicked);
+ // Even though we have a reset button right next to it, the fact that
+ // the expanded audio view labels are clickable makes it natural to
+ // click this one as well.
+ connect(ui->peak_display, &ClickableLabel::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));
+
+ midi_mapper.refresh_highlights();
+ midi_mapper.refresh_lights();
+ midi_mapper.start_thread();
+
+ analyzer.reset(new Analyzer);
+
+ global_mixer->set_theme_menu_callback(bind(&MainWindow::setup_theme_menu, this));
+ setup_theme_menu();
+
+ 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::reset_audio_mapping_ui()
+{
+ bool simple = (global_audio_mixer->get_mapping_mode() == AudioMixer::MappingMode::SIMPLE);
+
+ ui->simple_audio_mode->setChecked(simple);
+ ui->multichannel_audio_mode->setChecked(!simple);
+ ui->input_mapping_action->setEnabled(!simple);
+ ui->midi_mapping_action->setEnabled(!simple);
+
+ ui->locut_enabled->setVisible(simple);
+ ui->gainstaging_label->setVisible(simple);
+ ui->gainstaging_knob->setVisible(simple);
+ ui->gainstaging_db_display->setVisible(simple);
+ ui->gainstaging_auto_checkbox->setVisible(simple);
+ ui->compressor_threshold_label->setVisible(simple);
+ ui->compressor_threshold_knob->setVisible(simple);
+ ui->compressor_threshold_db_display->setVisible(simple);
+ ui->compressor_enabled->setVisible(simple);
+
+ setup_audio_miniview();
+ setup_audio_expanded_view();
+
+ if (simple) {
+ ui->compact_label->setText("Compact audio view (1/2) ");
+ ui->video_grid_label->setText("Video grid display (2/2) ");
+ if (ui->audio_views->currentIndex() == 1) {
+ // Full audio view is not available in simple mode.
+ ui->audio_views->setCurrentIndex(0);
+ }
+ } else {
+ ui->compact_label->setText("Compact audio view (1/3) ");
+ ui->full_label->setText("Full audio view (2/3) ");
+ ui->video_grid_label->setText("Video grid display (3/3) ");
+ }
+
+ midi_mapper.refresh_highlights();
+ midi_mapper.refresh_lights();
+}
+
+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();
+
+ if (global_audio_mixer->get_mapping_mode() == AudioMixer::MappingMode::SIMPLE) {
+ return;
+ }
+
+ // Set up brand new ones from the input mapping.
+ InputMapping mapping = global_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);
+
+ ui_audio_miniview->fader->setDbValue(global_audio_mixer->get_fader_volume(bus_index));
+
+ 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_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();
+
+ if (global_audio_mixer->get_mapping_mode() == AudioMixer::MappingMode::SIMPLE) {
+ return;
+ }
+
+ // Set up brand new ones from the input mapping.
+ InputMapping mapping = global_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;
+ update_eq_label(bus_index, EQ_BAND_TREBLE, global_audio_mixer->get_eq(bus_index, EQ_BAND_TREBLE));
+ update_eq_label(bus_index, EQ_BAND_MID, global_audio_mixer->get_eq(bus_index, EQ_BAND_MID));
+ update_eq_label(bus_index, EQ_BAND_BASS, global_audio_mixer->get_eq(bus_index, EQ_BAND_BASS));
+ ui_audio_expanded_view->fader->setDbValue(global_audio_mixer->get_fader_volume(bus_index));
+ ui_audio_expanded_view->mute_button->setChecked(global_audio_mixer->get_mute(bus_index));
+ connect(ui_audio_expanded_view->mute_button, &QPushButton::toggled,
+ bind(&MainWindow::mute_button_toggled, this, bus_index, _1));
+ ui->buses->addWidget(channel);
+
+ ui_audio_expanded_view->locut_enabled->setChecked(global_audio_mixer->get_locut_enabled(bus_index));
+ connect(ui_audio_expanded_view->locut_enabled, &QCheckBox::stateChanged, [this, bus_index](int state){
+ global_audio_mixer->set_locut_enabled(bus_index, state == Qt::Checked);
+ midi_mapper.refresh_lights();
+ });
+
+ connect(ui_audio_expanded_view->treble_knob, &QDial::valueChanged,
+ bind(&MainWindow::eq_knob_changed, this, bus_index, EQ_BAND_TREBLE, _1));
+ connect(ui_audio_expanded_view->mid_knob, &QDial::valueChanged,
+ bind(&MainWindow::eq_knob_changed, this, bus_index, EQ_BAND_MID, _1));
+ connect(ui_audio_expanded_view->bass_knob, &QDial::valueChanged,
+ bind(&MainWindow::eq_knob_changed, this, bus_index, EQ_BAND_BASS, _1));
+
+ ui_audio_expanded_view->gainstaging_knob->setValue(global_audio_mixer->get_gain_staging_db(bus_index));
+ ui_audio_expanded_view->gainstaging_auto_checkbox->setChecked(global_audio_mixer->get_gain_staging_auto(bus_index));
+ ui_audio_expanded_view->compressor_enabled->setChecked(global_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_audio_mixer->set_gain_staging_auto(bus_index, state == Qt::Checked);
+ midi_mapper.refresh_lights();
+ });
+
+ 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_audio_mixer->set_compressor_enabled(bus_index, state == Qt::Checked);
+ midi_mapper.refresh_lights();
+ });
+
+ 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,
+ [this, bus_index]() {
+ global_audio_mixer->reset_peak(bus_index);
+ midi_mapper.refresh_lights();
+ });
+ }
+
+ update_cutoff_labels(global_audio_mixer->get_locut_cutoff());
+}
+
+void MainWindow::mixer_shutting_down()
+{
+ ui->me_live->shutdown();
+ ui->me_preview->shutdown();
+
+ for (Ui::Display *display : previews) {
+ display->display->shutdown();
+ }
+
+ analyzer->mixer_shutting_down();
+}
+
+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::manual_triggered()
+{
+ if (!QDesktopServices::openUrl(QUrl("https://nageru.sesse.net/doc/"))) {
+ QMessageBox msgbox;
+ msgbox.setText("Could not launch manual in web browser.\nPlease see https://nageru.sesse.net/doc/ manually.");
+ msgbox.exec();
+ }
+}
+
+void MainWindow::about_triggered()
+{
+ AboutDialog().exec();
+}
+
+void MainWindow::open_analyzer_triggered()
+{
+ analyzer->show();
+}
+
+void MainWindow::simple_audio_mode_triggered()
+{
+ if (global_audio_mixer->get_mapping_mode() == AudioMixer::MappingMode::SIMPLE) {
+ return;
+ }
+ unsigned card_index = global_audio_mixer->get_simple_input();
+ if (card_index == numeric_limits<unsigned>::max()) {
+ QMessageBox::StandardButton reply =
+ QMessageBox::question(this,
+ "Mapping too complex",
+ "The current audio mapping is too complicated to be representable in simple mode, "
+ "and will be discarded if you proceed. Really go to simple audio mode?",
+ QMessageBox::Yes | QMessageBox::No);
+ if (reply == QMessageBox::No) {
+ ui->simple_audio_mode->setChecked(false);
+ ui->multichannel_audio_mode->setChecked(true);
+ return;
+ }
+ card_index = 0;
+ }
+ global_audio_mixer->set_simple_input(/*card_index=*/card_index);
+ reset_audio_mapping_ui();
+}
+
+void MainWindow::multichannel_audio_mode_triggered()
+{
+ if (global_audio_mixer->get_mapping_mode() == AudioMixer::MappingMode::MULTICHANNEL) {
+ return;
+ }
+
+ // Take the generated input mapping from the simple input,
+ // and set it as a normal multichannel mapping, which causes
+ // the mode to go to multichannel.
+ global_audio_mixer->set_input_mapping(global_audio_mixer->get_input_mapping());
+ reset_audio_mapping_ui();
+}
+
+void MainWindow::input_mapping_triggered()
+{
+ if (InputMappingDialog().exec() == QDialog::Accepted) {
+ setup_audio_miniview();
+ setup_audio_expanded_view();
+ }
+ midi_mapper.refresh_highlights();
+ midi_mapper.refresh_lights();
+}
+
+void MainWindow::midi_mapping_triggered()
+{
+ MIDIMappingDialog(&midi_mapper).exec();
+}
+
+void MainWindow::timecode_stream_triggered()
+{
+ global_mixer->set_display_timecode_in_stream(ui->timecode_stream_action->isChecked());
+}
+
+void MainWindow::timecode_stdout_triggered()
+{
+ global_mixer->set_display_timecode_on_stdout(ui->timecode_stdout_action->isChecked());
+}
+
+void MainWindow::gain_staging_knob_changed(unsigned bus_index, int value)
+{
+ if (bus_index == 0) {
+ ui->gainstaging_auto_checkbox->setCheckState(Qt::Unchecked);
+ }
+ if (bus_index < audio_expanded_views.size()) {
+ audio_expanded_views[bus_index]->gainstaging_auto_checkbox->setCheckState(Qt::Unchecked);
+ }
+
+ float gain_db = value * 0.1f;
+ global_audio_mixer->set_gain_staging_db(bus_index, 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_audio_mixer->set_final_makeup_gain_db(gain_db);
+
+ // The label will be updated by the audio level callback.
+}
+
+void MainWindow::cutoff_knob_changed(int value)
+{
+ float octaves = value * 0.1f;
+ float cutoff_hz = 20.0 * pow(2.0, octaves);
+ global_audio_mixer->set_locut_cutoff(cutoff_hz);
+ update_cutoff_labels(cutoff_hz);
+}
+
+void MainWindow::update_cutoff_labels(float cutoff_hz)
+{
+ char buf[256];
+ snprintf(buf, sizeof(buf), "%ld Hz", lrintf(cutoff_hz));
+ ui->locut_cutoff_display->setText(buf);
+ ui->locut_cutoff_display_2->setText(buf);
+
+ for (unsigned bus_index = 0; bus_index < audio_expanded_views.size(); ++bus_index) {
+ audio_expanded_views[bus_index]->locut_enabled->setText(
+ QString("Lo-cut: ") + buf);
+ }
+}
+
+void MainWindow::report_disk_space(off_t free_bytes, double estimated_seconds_left)
+{
+ char time_str[256];
+ if (estimated_seconds_left < 60.0) {
+ strcpy(time_str, "<font color=\"red\">Less than a minute</font>");
+ } else if (estimated_seconds_left < 1800.0) { // Less than half an hour: Xm Ys (red).
+ int s = lrintf(estimated_seconds_left);
+ int m = s / 60;
+ s %= 60;
+ snprintf(time_str, sizeof(time_str), "<font color=\"red\">%dm %ds</font>", m, s);
+ } else if (estimated_seconds_left < 3600.0) { // Less than an hour: Xm.
+ int m = lrintf(estimated_seconds_left / 60.0);
+ snprintf(time_str, sizeof(time_str), "%dm", m);
+ } else if (estimated_seconds_left < 36000.0) { // Less than ten hours: Xh Ym.
+ int m = lrintf(estimated_seconds_left / 60.0);
+ int h = m / 60;
+ m %= 60;
+ snprintf(time_str, sizeof(time_str), "%dh %dm", h, m);
+ } else { // More than ten hours: Xh.
+ int h = lrintf(estimated_seconds_left / 3600.0);
+ snprintf(time_str, sizeof(time_str), "%dh", h);
+ }
+ char buf[256];
+ snprintf(buf, sizeof(buf), "Disk free: %'.0f MB (approx. %s)", free_bytes / 1048576.0, time_str);
+
+ std::string label = buf;
+
+ post_to_main_thread([this, label]{
+ disk_free_label->setText(QString::fromStdString(label));
+ ui->menuBar->setCornerWidget(disk_free_label); // Need to set this again for the sizing to get right.
+ });
+}
+
+void MainWindow::eq_knob_changed(unsigned bus_index, EQBand band, int value)
+{
+ float gain_db = value * 0.1f;
+ global_audio_mixer->set_eq(bus_index, band, gain_db);
+
+ update_eq_label(bus_index, band, gain_db);
+}
+
+void MainWindow::update_eq_label(unsigned bus_index, EQBand band, float gain_db)
+{
+ Ui::AudioExpandedView *view = audio_expanded_views[bus_index];
+ string db_string = format_db(gain_db, DB_WITH_SIGN);
+ switch (band) {
+ case EQ_BAND_TREBLE:
+ view->treble_label->setText(QString::fromStdString("Treble: " + db_string));
+ break;
+ case EQ_BAND_MID:
+ view->mid_label->setText(QString::fromStdString("Mid: " + db_string));
+ break;
+ case EQ_BAND_BASS:
+ view->bass_label->setText(QString::fromStdString("Bass: " + db_string));
+ break;
+ default:
+ assert(false);
+ }
+}
+
+void MainWindow::setup_theme_menu()
+{
+ std::vector<Theme::MenuEntry> theme_menu_entries = global_mixer->get_theme_menu();
+
+ if (theme_menu != nullptr) {
+ ui->menuBar->removeAction(theme_menu->menuAction());
+ theme_menu = nullptr;
+ }
+
+ if (!theme_menu_entries.empty()) {
+ theme_menu = new QMenu("&Theme");
+ for (const Theme::MenuEntry &entry : theme_menu_entries) {
+ QAction *action = theme_menu->addAction(QString::fromStdString(entry.text));
+ connect(action, &QAction::triggered, [entry] {
+ global_mixer->theme_menu_entry_clicked(entry.lua_ref);
+ });
+ }
+ ui->menuBar->insertMenu(ui->menu_Help->menuAction(), theme_menu);
+ }
+}
+
+void MainWindow::limiter_threshold_knob_changed(int value)
+{
+ float threshold_dbfs = value * 0.1f;
+ global_audio_mixer->set_limiter_threshold_dbfs(threshold_dbfs);
+ ui->limiter_threshold_db_display->setText(
+ QString::fromStdString(format_db(threshold_dbfs, DB_WITH_SIGN)));
+ ui->limiter_threshold_db_display_2->setText(
+ QString::fromStdString(format_db(threshold_dbfs, DB_WITH_SIGN)));
+}
+
+void MainWindow::compressor_threshold_knob_changed(unsigned bus_index, int value)
+{
+ float threshold_dbfs = value * 0.1f;
+ global_audio_mixer->set_compressor_threshold_dbfs(bus_index, threshold_dbfs);
+
+ QString label(QString::fromStdString(format_db(threshold_dbfs, DB_WITH_SIGN)));
+ if (bus_index == 0) {
+ ui->compressor_threshold_db_display->setText(label);
+ }
+ if (bus_index < audio_expanded_views.size()) {
+ audio_expanded_views[bus_index]->compressor_threshold_db_display->setText(label);
+ }
+}
+
+void MainWindow::mini_fader_changed(int bus, double volume_db)
+{
+ QString label(QString::fromStdString(format_db(volume_db, DB_WITH_SIGN)));
+ audio_miniviews[bus]->fader_label->setText(label);
+ audio_expanded_views[bus]->fader_label->setText(label);
+
+ global_audio_mixer->set_fader_volume(bus, volume_db);
+}
+
+void MainWindow::mute_button_toggled(int bus, bool checked)
+{
+ global_audio_mixer->set_mute(bus, checked);
+ midi_mapper.refresh_lights();