1 #include "mainwindow.h"
11 #include <QInputDialog>
12 #include <QKeySequence>
15 #include <QPushButton>
16 #include <QResizeEvent>
21 #include "aboutdialog.h"
22 #include "disk_space_estimator.h"
25 #include "input_mapping_dialog.h"
28 #include "post_to_main_thread.h"
29 #include "ui_audio_miniview.h"
30 #include "ui_audio_expanded_view.h"
31 #include "ui_display.h"
32 #include "ui_mainwindow.h"
38 using namespace std::chrono;
39 using namespace std::placeholders;
41 Q_DECLARE_METATYPE(std::string);
42 Q_DECLARE_METATYPE(std::vector<std::string>);
44 MainWindow *global_mainwindow = nullptr;
48 void schedule_cut_signal(int ignored)
50 global_mixer->schedule_cut();
53 void quit_signal(int ignored)
55 global_mainwindow->close();
58 void slave_knob(QDial *master, QDial *slave)
60 QWidget::connect(master, &QDial::valueChanged, [slave](int value){
61 slave->blockSignals(true);
62 slave->setValue(value);
63 slave->blockSignals(false);
65 QWidget::connect(slave, &QDial::valueChanged, [master](int value){
66 master->setValue(value);
70 void slave_checkbox(QCheckBox *master, QCheckBox *slave)
72 QWidget::connect(master, &QCheckBox::stateChanged, [slave](int state){
73 slave->blockSignals(true);
74 slave->setCheckState(Qt::CheckState(state));
75 slave->blockSignals(false);
77 QWidget::connect(slave, &QCheckBox::stateChanged, [master](int state){
78 master->setCheckState(Qt::CheckState(state));
82 void slave_fader(NonLinearFader *master, NonLinearFader *slave)
84 QWidget::connect(master, &NonLinearFader::dbValueChanged, [slave](double value) {
85 slave->blockSignals(true);
86 slave->setDbValue(value);
87 slave->blockSignals(false);
89 QWidget::connect(slave, &NonLinearFader::dbValueChanged, [master](double value){
90 master->setDbValue(value);
94 constexpr unsigned DB_NO_FLAGS = 0x0;
95 constexpr unsigned DB_WITH_SIGN = 0x1;
96 constexpr unsigned DB_BARE = 0x2;
98 string format_db(double db, unsigned flags)
101 if (flags & DB_WITH_SIGN) {
104 snprintf(buf, sizeof(buf), "%+.1f", db);
106 } else if (db < 0.0) {
109 // Should never happen, really.
115 snprintf(buf, sizeof(buf), "%.1f", db);
117 } else if (db < 0.0) {
120 // Should never happen, really.
124 if (!(flags & DB_BARE)) {
130 void set_peak_label(QLabel *peak_label, float peak_db)
132 peak_label->setText(QString::fromStdString(format_db(peak_db, DB_BARE)));
134 // -0.1 dBFS is EBU peak limit. We use it consistently, even for the bus meters
135 // (which don't calculate interpolate peak, and in general don't follow EBU recommendations).
136 if (peak_db > -0.1f) {
137 peak_label->setStyleSheet("QLabel { background-color: red; color: white; }");
139 peak_label->setStyleSheet("");
145 MainWindow::MainWindow()
146 : ui(new Ui::MainWindow)
148 global_mainwindow = this;
151 global_disk_space_estimator = new DiskSpaceEstimator(bind(&MainWindow::report_disk_space, this, _1, _2));
152 disk_free_label = new QLabel(this);
153 disk_free_label->setStyleSheet("QLabel {padding-right: 5px;}");
154 ui->menuBar->setCornerWidget(disk_free_label);
156 ui->me_live->set_output(Mixer::OUTPUT_LIVE);
157 ui->me_preview->set_output(Mixer::OUTPUT_PREVIEW);
160 connect(ui->cut_action, &QAction::triggered, this, &MainWindow::cut_triggered);
161 connect(ui->exit_action, &QAction::triggered, this, &MainWindow::exit_triggered);
162 connect(ui->about_action, &QAction::triggered, this, &MainWindow::about_triggered);
163 connect(ui->input_mapping_action, &QAction::triggered, this, &MainWindow::input_mapping_triggered);
165 if (global_flags.x264_video_to_http) {
166 connect(ui->x264_bitrate_action, &QAction::triggered, this, &MainWindow::x264_bitrate_triggered);
168 ui->x264_bitrate_action->setEnabled(false);
171 // Hook up the transition buttons. (Keyboard shortcuts are set in set_transition_names().)
172 // TODO: Make them dynamic.
173 connect(ui->transition_btn1, &QPushButton::clicked, bind(&MainWindow::transition_clicked, this, 0));
174 connect(ui->transition_btn2, &QPushButton::clicked, bind(&MainWindow::transition_clicked, this, 1));
175 connect(ui->transition_btn3, &QPushButton::clicked, bind(&MainWindow::transition_clicked, this, 2));
178 transition_btn1 = ui->transition_btn1;
179 transition_btn2 = ui->transition_btn2;
180 transition_btn3 = ui->transition_btn3;
181 qRegisterMetaType<string>("std::string");
182 qRegisterMetaType<vector<string>>("std::vector<std::string>");
183 connect(ui->me_live, &GLWidget::transition_names_updated, this, &MainWindow::set_transition_names);
184 qRegisterMetaType<Mixer::Output>("Mixer::Output");
186 // Hook up the prev/next buttons on the audio views.
187 connect(ui->compact_prev_page, &QAbstractButton::clicked, bind(&QStackedWidget::setCurrentIndex, ui->audio_views, 1));
188 connect(ui->compact_next_page, &QAbstractButton::clicked, bind(&QStackedWidget::setCurrentIndex, ui->audio_views, 1));
189 connect(ui->full_prev_page, &QAbstractButton::clicked, bind(&QStackedWidget::setCurrentIndex, ui->audio_views, 0));
190 connect(ui->full_next_page, &QAbstractButton::clicked, bind(&QStackedWidget::setCurrentIndex, ui->audio_views, 0));
192 last_audio_level_callback = steady_clock::now() - seconds(1);
195 void MainWindow::resizeEvent(QResizeEvent* event)
197 QMainWindow::resizeEvent(event);
199 // Ask for a relayout, but only after the event loop is done doing relayout
200 // on everything else.
201 QMetaObject::invokeMethod(this, "relayout", Qt::QueuedConnection);
204 void MainWindow::mixer_created(Mixer *mixer)
206 // Make the previews.
207 unsigned num_previews = mixer->get_num_channels();
209 for (unsigned i = 0; i < num_previews; ++i) {
210 Mixer::Output output = Mixer::Output(Mixer::OUTPUT_INPUT0 + i);
212 QWidget *preview = new QWidget(this);
213 Ui::Display *ui_display = new Ui::Display;
214 ui_display->setupUi(preview);
215 ui_display->label->setText(mixer->get_channel_name(output).c_str());
216 ui_display->display->set_output(output);
217 ui->preview_displays->insertWidget(previews.size(), preview, 1);
218 previews.push_back(ui_display);
220 // Hook up the click.
221 connect(ui_display->display, &GLWidget::clicked, bind(&MainWindow::channel_clicked, this, i));
223 // Let the theme update the text whenever the resolution or color changed.
224 connect(ui_display->display, &GLWidget::name_updated, this, &MainWindow::update_channel_name);
225 connect(ui_display->display, &GLWidget::color_updated, this, &MainWindow::update_channel_color);
227 // Hook up the keyboard key.
228 QShortcut *shortcut = new QShortcut(QKeySequence(Qt::Key_1 + i), this);
229 connect(shortcut, &QShortcut::activated, bind(&MainWindow::channel_clicked, this, i));
231 // Hook up the white balance button (irrelevant if invisible).
232 ui_display->wb_button->setVisible(mixer->get_supports_set_wb(output));
233 connect(ui_display->wb_button, &QPushButton::clicked, bind(&MainWindow::wb_button_clicked, this, i));
236 setup_audio_miniview();
237 setup_audio_expanded_view();
238 global_audio_mixer->set_state_changed_callback(bind(&MainWindow::audio_state_changed, this));
240 slave_knob(ui->locut_cutoff_knob, ui->locut_cutoff_knob_2);
241 slave_knob(ui->limiter_threshold_knob, ui->limiter_threshold_knob_2);
242 slave_knob(ui->makeup_gain_knob, ui->makeup_gain_knob_2);
243 slave_checkbox(ui->makeup_gain_auto_checkbox, ui->makeup_gain_auto_checkbox_2);
244 slave_checkbox(ui->limiter_enabled, ui->limiter_enabled_2);
246 // TODO: Fetch all of the values these for completeness,
247 // not just the enable knobs implied by flags.
249 // TODO: Reenable for simple audio.
250 ui->locut_enabled->setChecked(global_audio_mixer->get_locut_enabled(0));
251 connect(ui->locut_enabled, &QCheckBox::stateChanged, [this](int state){
252 global_audio_mixer->set_locut_enabled(0, state == Qt::Checked);
254 ui->gainstaging_knob->setValue(global_audio_mixer->get_gain_staging_db());
255 ui->gainstaging_auto_checkbox->setChecked(global_audio_mixer->get_gain_staging_auto());
256 ui->compressor_enabled->setChecked(global_audio_mixer->get_compressor_enabled());
257 connect(ui->gainstaging_knob, &QAbstractSlider::valueChanged, this, &MainWindow::gain_staging_knob_changed);
258 connect(ui->gainstaging_auto_checkbox, &QCheckBox::stateChanged, [this](int state){
259 global_audio_mixer->set_gain_staging_auto(state == Qt::Checked);
261 ui->compressor_threshold_db_display->setText(
262 QString::fromStdString(format_db(mixer->get_audio_mixer()->get_compressor_threshold_dbfs(), DB_WITH_SIGN)));
263 ui->compressor_threshold_db_display->setText(buf);
264 connect(ui->compressor_threshold_knob, &QDial::valueChanged, this, &MainWindow::compressor_threshold_knob_changed);
265 connect(ui->compressor_enabled, &QCheckBox::stateChanged, [this](int state){
266 global_audio_mixer->set_compressor_enabled(state == Qt::Checked);
269 ui->locut_enabled->setVisible(false);
270 ui->gainstaging_label->setVisible(false);
271 ui->gainstaging_knob->setVisible(false);
272 ui->gainstaging_db_display->setVisible(false);
273 ui->gainstaging_auto_checkbox->setVisible(false);
274 ui->compressor_threshold_label->setVisible(false);
275 ui->compressor_threshold_knob->setVisible(false);
276 ui->compressor_threshold_db_display->setVisible(false);
277 ui->compressor_enabled->setVisible(false);
279 ui->limiter_enabled->setChecked(global_audio_mixer->get_limiter_enabled());
280 ui->makeup_gain_auto_checkbox->setChecked(global_audio_mixer->get_final_makeup_gain_auto());
282 QString limiter_threshold_label(
283 QString::fromStdString(format_db(mixer->get_audio_mixer()->get_limiter_threshold_dbfs(), DB_WITH_SIGN)));
284 ui->limiter_threshold_db_display->setText(limiter_threshold_label);
285 ui->limiter_threshold_db_display_2->setText(limiter_threshold_label);
287 connect(ui->locut_cutoff_knob, &QDial::valueChanged, this, &MainWindow::cutoff_knob_changed);
288 cutoff_knob_changed(ui->locut_cutoff_knob->value());
290 connect(ui->makeup_gain_knob, &QAbstractSlider::valueChanged, this, &MainWindow::final_makeup_gain_knob_changed);
291 connect(ui->makeup_gain_auto_checkbox, &QCheckBox::stateChanged, [this](int state){
292 global_audio_mixer->set_final_makeup_gain_auto(state == Qt::Checked);
295 connect(ui->limiter_threshold_knob, &QDial::valueChanged, this, &MainWindow::limiter_threshold_knob_changed);
296 connect(ui->limiter_enabled, &QCheckBox::stateChanged, [this](int state){
297 global_audio_mixer->set_limiter_enabled(state == Qt::Checked);
299 connect(ui->reset_meters_button, &QPushButton::clicked, this, &MainWindow::reset_meters_button_clicked);
300 mixer->get_audio_mixer()->set_audio_level_callback(bind(&MainWindow::audio_level_callback, this, _1, _2, _3, _4, _5, _6, _7, _8));
302 struct sigaction act;
303 memset(&act, 0, sizeof(act));
304 act.sa_handler = schedule_cut_signal;
305 act.sa_flags = SA_RESTART;
306 sigaction(SIGHUP, &act, nullptr);
308 // Mostly for debugging. Don't override SIGINT, that's so evil if
309 // shutdown isn't instant.
310 memset(&act, 0, sizeof(act));
311 act.sa_handler = quit_signal;
312 act.sa_flags = SA_RESTART;
313 sigaction(SIGUSR1, &act, nullptr);
316 void MainWindow::setup_audio_miniview()
318 // Remove any existing channels.
319 for (QLayoutItem *item; (item = ui->faders->takeAt(0)) != nullptr; ) {
320 delete item->widget();
323 audio_miniviews.clear();
325 // Set up brand new ones from the input mapping.
326 InputMapping mapping = global_audio_mixer->get_input_mapping();
327 audio_miniviews.resize(mapping.buses.size());
328 for (unsigned bus_index = 0; bus_index < mapping.buses.size(); ++bus_index) {
329 QWidget *channel = new QWidget(this);
330 Ui::AudioMiniView *ui_audio_miniview = new Ui::AudioMiniView;
331 ui_audio_miniview->setupUi(channel);
332 ui_audio_miniview->bus_desc_label->setFullText(
333 QString::fromStdString(mapping.buses[bus_index].name));
334 audio_miniviews[bus_index] = ui_audio_miniview;
336 // Set up the peak meter.
337 VUMeter *peak_meter = ui_audio_miniview->peak_meter;
338 peak_meter->set_min_level(-30.0f);
339 peak_meter->set_max_level(0.0f);
340 peak_meter->set_ref_level(0.0f);
342 ui_audio_miniview->fader->setDbValue(global_audio_mixer->get_fader_volume(bus_index));
344 ui->faders->addWidget(channel);
346 connect(ui_audio_miniview->fader, &NonLinearFader::dbValueChanged,
347 bind(&MainWindow::mini_fader_changed, this, bus_index, _1));
348 connect(ui_audio_miniview->peak_display_label, &ClickableLabel::clicked,
350 global_audio_mixer->reset_peak(bus_index);
355 void MainWindow::setup_audio_expanded_view()
357 // Remove any existing channels.
358 for (QLayoutItem *item; (item = ui->buses->takeAt(0)) != nullptr; ) {
359 delete item->widget();
362 audio_expanded_views.clear();
364 // Set up brand new ones from the input mapping.
365 InputMapping mapping = global_audio_mixer->get_input_mapping();
366 audio_expanded_views.resize(mapping.buses.size());
367 for (unsigned bus_index = 0; bus_index < mapping.buses.size(); ++bus_index) {
368 QWidget *channel = new QWidget(this);
369 Ui::AudioExpandedView *ui_audio_expanded_view = new Ui::AudioExpandedView;
370 ui_audio_expanded_view->setupUi(channel);
371 ui_audio_expanded_view->bus_desc_label->setFullText(
372 QString::fromStdString(mapping.buses[bus_index].name));
373 audio_expanded_views[bus_index] = ui_audio_expanded_view;
374 update_eq_label(bus_index, EQ_BAND_TREBLE, global_audio_mixer->get_eq(bus_index, EQ_BAND_TREBLE));
375 update_eq_label(bus_index, EQ_BAND_MID, global_audio_mixer->get_eq(bus_index, EQ_BAND_MID));
376 update_eq_label(bus_index, EQ_BAND_BASS, global_audio_mixer->get_eq(bus_index, EQ_BAND_BASS));
377 ui_audio_expanded_view->fader->setDbValue(global_audio_mixer->get_fader_volume(bus_index));
378 ui->buses->addWidget(channel);
380 ui_audio_expanded_view->locut_enabled->setChecked(global_audio_mixer->get_locut_enabled(bus_index));
381 connect(ui_audio_expanded_view->locut_enabled, &QCheckBox::stateChanged, [this, bus_index](int state){
382 global_audio_mixer->set_locut_enabled(bus_index, state == Qt::Checked);
385 connect(ui_audio_expanded_view->treble_knob, &QDial::valueChanged,
386 bind(&MainWindow::eq_knob_changed, this, bus_index, EQ_BAND_TREBLE, _1));
387 connect(ui_audio_expanded_view->mid_knob, &QDial::valueChanged,
388 bind(&MainWindow::eq_knob_changed, this, bus_index, EQ_BAND_MID, _1));
389 connect(ui_audio_expanded_view->bass_knob, &QDial::valueChanged,
390 bind(&MainWindow::eq_knob_changed, this, bus_index, EQ_BAND_BASS, _1));
392 ui_audio_expanded_view->gainstaging_knob->setValue(global_audio_mixer->get_gain_staging_db(bus_index));
393 ui_audio_expanded_view->gainstaging_auto_checkbox->setChecked(global_audio_mixer->get_gain_staging_auto(bus_index));
394 ui_audio_expanded_view->compressor_enabled->setChecked(global_audio_mixer->get_compressor_enabled(bus_index));
396 connect(ui_audio_expanded_view->gainstaging_knob, &QAbstractSlider::valueChanged, bind(&MainWindow::gain_staging_knob_changed, this, bus_index, _1));
397 connect(ui_audio_expanded_view->gainstaging_auto_checkbox, &QCheckBox::stateChanged, [this, bus_index](int state){
398 global_audio_mixer->set_gain_staging_auto(bus_index, state == Qt::Checked);
401 connect(ui_audio_expanded_view->compressor_threshold_knob, &QDial::valueChanged, bind(&MainWindow::compressor_threshold_knob_changed, this, bus_index, _1));
402 connect(ui_audio_expanded_view->compressor_enabled, &QCheckBox::stateChanged, [this, bus_index](int state){
403 global_audio_mixer->set_compressor_enabled(bus_index, state == Qt::Checked);
406 slave_fader(audio_miniviews[bus_index]->fader, ui_audio_expanded_view->fader);
408 // Set up the peak meter.
409 VUMeter *peak_meter = ui_audio_expanded_view->peak_meter;
410 peak_meter->set_min_level(-30.0f);
411 peak_meter->set_max_level(0.0f);
412 peak_meter->set_ref_level(0.0f);
414 connect(ui_audio_expanded_view->peak_display_label, &ClickableLabel::clicked,
416 global_audio_mixer->reset_peak(bus_index);
419 // Set up the compression attenuation meter.
420 VUMeter *reduction_meter = ui_audio_expanded_view->reduction_meter;
421 reduction_meter->set_min_level(0.0f);
422 reduction_meter->set_max_level(10.0f);
423 reduction_meter->set_ref_level(0.0f);
424 reduction_meter->set_flip(true);
427 update_cutoff_labels(global_audio_mixer->get_locut_cutoff());
430 void MainWindow::mixer_shutting_down()
432 ui->me_live->clean_context();
433 ui->me_preview->clean_context();
434 for (Ui::Display *display : previews) {
435 display->display->clean_context();
439 void MainWindow::cut_triggered()
441 global_mixer->schedule_cut();
444 void MainWindow::x264_bitrate_triggered()
447 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);
448 if (ok && new_bitrate >= 100 && new_bitrate <= 100000) {
449 global_flags.x264_bitrate = new_bitrate;
450 global_mixer->change_x264_bitrate(new_bitrate);
454 void MainWindow::exit_triggered()
459 void MainWindow::about_triggered()
461 AboutDialog().exec();
464 void MainWindow::input_mapping_triggered()
466 if (InputMappingDialog().exec() == QDialog::Accepted) {
467 setup_audio_miniview();
468 setup_audio_expanded_view();
472 void MainWindow::gain_staging_knob_changed(unsigned bus_index, int value)
474 if (bus_index == 0) {
475 ui->gainstaging_auto_checkbox->setCheckState(Qt::Unchecked);
477 if (bus_index < audio_expanded_views.size()) {
478 audio_expanded_views[bus_index]->gainstaging_auto_checkbox->setCheckState(Qt::Unchecked);
481 float gain_db = value * 0.1f;
482 global_audio_mixer->set_gain_staging_db(bus_index, gain_db);
484 // The label will be updated by the audio level callback.
487 void MainWindow::final_makeup_gain_knob_changed(int value)
489 ui->makeup_gain_auto_checkbox->setCheckState(Qt::Unchecked);
491 float gain_db = value * 0.1f;
492 global_audio_mixer->set_final_makeup_gain_db(gain_db);
494 // The label will be updated by the audio level callback.
497 void MainWindow::cutoff_knob_changed(int value)
499 float octaves = value * 0.1f;
500 float cutoff_hz = 20.0 * pow(2.0, octaves);
501 global_audio_mixer->set_locut_cutoff(cutoff_hz);
502 update_cutoff_labels(cutoff_hz);
505 void MainWindow::update_cutoff_labels(float cutoff_hz)
508 snprintf(buf, sizeof(buf), "%ld Hz", lrintf(cutoff_hz));
509 ui->locut_cutoff_display->setText(buf);
510 ui->locut_cutoff_display_2->setText(buf);
512 for (unsigned bus_index = 0; bus_index < audio_expanded_views.size(); ++bus_index) {
513 audio_expanded_views[bus_index]->locut_enabled->setText(
514 QString("Lo-cut: ") + buf);
518 void MainWindow::report_disk_space(off_t free_bytes, double estimated_seconds_left)
521 if (estimated_seconds_left < 60.0) {
522 strcpy(time_str, "<font color=\"red\">Less than a minute</font>");
523 } else if (estimated_seconds_left < 1800.0) { // Less than half an hour: Xm Ys (red).
524 int s = lrintf(estimated_seconds_left);
527 snprintf(time_str, sizeof(time_str), "<font color=\"red\">%dm %ds</font>", m, s);
528 } else if (estimated_seconds_left < 3600.0) { // Less than an hour: Xm.
529 int m = lrintf(estimated_seconds_left / 60.0);
530 snprintf(time_str, sizeof(time_str), "%dm", m);
531 } else if (estimated_seconds_left < 36000.0) { // Less than ten hours: Xh Ym.
532 int m = lrintf(estimated_seconds_left / 60.0);
535 snprintf(time_str, sizeof(time_str), "%dh %dm", h, m);
536 } else { // More than ten hours: Xh.
537 int h = lrintf(estimated_seconds_left / 3600.0);
538 snprintf(time_str, sizeof(time_str), "%dh", h);
541 snprintf(buf, sizeof(buf), "Disk free: %'.0f MB (approx. %s)", free_bytes / 1048576.0, time_str);
543 std::string label = buf;
545 post_to_main_thread([this, label]{
546 disk_free_label->setText(QString::fromStdString(label));
547 ui->menuBar->setCornerWidget(disk_free_label); // Need to set this again for the sizing to get right.
551 void MainWindow::eq_knob_changed(unsigned bus_index, EQBand band, int value)
553 float gain_db = value * 0.1f;
554 global_audio_mixer->set_eq(bus_index, band, gain_db);
556 update_eq_label(bus_index, band, gain_db);
559 void MainWindow::update_eq_label(unsigned bus_index, EQBand band, float gain_db)
561 Ui::AudioExpandedView *view = audio_expanded_views[bus_index];
562 string db_string = format_db(gain_db, DB_WITH_SIGN);
565 view->treble_label->setText(QString::fromStdString("Treble: " + db_string));
568 view->mid_label->setText(QString::fromStdString("Mid: " + db_string));
571 view->bass_label->setText(QString::fromStdString("Bass: " + db_string));
578 void MainWindow::limiter_threshold_knob_changed(int value)
580 float threshold_dbfs = value * 0.1f;
581 global_audio_mixer->set_limiter_threshold_dbfs(threshold_dbfs);
582 ui->limiter_threshold_db_display->setText(
583 QString::fromStdString(format_db(threshold_dbfs, DB_WITH_SIGN)));
584 ui->limiter_threshold_db_display_2->setText(
585 QString::fromStdString(format_db(threshold_dbfs, DB_WITH_SIGN)));
588 void MainWindow::compressor_threshold_knob_changed(unsigned bus_index, int value)
590 float threshold_dbfs = value * 0.1f;
591 global_audio_mixer->set_compressor_threshold_dbfs(bus_index, threshold_dbfs);
593 QString label(QString::fromStdString(format_db(threshold_dbfs, DB_WITH_SIGN)));
594 if (bus_index == 0) {
595 ui->compressor_threshold_db_display->setText(label);
597 if (bus_index < audio_expanded_views.size()) {
598 audio_expanded_views[bus_index]->compressor_threshold_db_display->setText(label);
602 void MainWindow::mini_fader_changed(int bus, double volume_db)
604 QString label(QString::fromStdString(format_db(volume_db, DB_WITH_SIGN)));
605 audio_miniviews[bus]->fader_label->setText(label);
606 audio_expanded_views[bus]->fader_label->setText(label);
608 global_audio_mixer->set_fader_volume(bus, volume_db);
611 void MainWindow::reset_meters_button_clicked()
613 global_audio_mixer->reset_meters();
614 ui->peak_display->setText(QString::fromStdString(format_db(-HUGE_VAL, DB_WITH_SIGN | DB_BARE)));
615 ui->peak_display->setStyleSheet("");
618 void MainWindow::audio_level_callback(float level_lufs, float peak_db, vector<AudioMixer::BusLevel> bus_levels,
619 float global_level_lufs,
620 float range_low_lufs, float range_high_lufs,
621 float final_makeup_gain_db,
624 steady_clock::time_point now = steady_clock::now();
626 // The meters are somewhat inefficient to update. Only update them
627 // every 100 ms or so (we get updates every 5–20 ms). Note that this
628 // means that the digital peak meters are ever so slightly too low
629 // (each update won't be a faithful representation of the highest peak
630 // since the previous update, since there are frames we won't draw),
631 // but the _peak_ of the peak meters will be correct (it's tracked in
632 // AudioMixer, not here), and that's much more important.
633 double last_update_age = duration<double>(now - last_audio_level_callback).count();
634 if (last_update_age < 0.100) {
637 last_audio_level_callback = now;
639 post_to_main_thread([=]() {
640 ui->vu_meter->set_level(level_lufs);
641 for (unsigned bus_index = 0; bus_index < bus_levels.size(); ++bus_index) {
642 if (bus_index < audio_miniviews.size()) {
643 const AudioMixer::BusLevel &level = bus_levels[bus_index];
644 Ui::AudioMiniView *miniview = audio_miniviews[bus_index];
645 miniview->peak_meter->set_level(
646 level.current_level_dbfs[0], level.current_level_dbfs[1]);
647 miniview->peak_meter->set_peak(
648 level.peak_level_dbfs[0], level.peak_level_dbfs[1]);
649 set_peak_label(miniview->peak_display_label, level.historic_peak_dbfs);
651 Ui::AudioExpandedView *view = audio_expanded_views[bus_index];
652 view->peak_meter->set_level(
653 level.current_level_dbfs[0], level.current_level_dbfs[1]);
654 view->peak_meter->set_peak(
655 level.peak_level_dbfs[0], level.peak_level_dbfs[1]);
656 view->reduction_meter->set_level(level.compressor_attenuation_db);
657 view->gainstaging_knob->blockSignals(true);
658 view->gainstaging_knob->setValue(lrintf(level.gain_staging_db * 10.0f));
659 view->gainstaging_knob->blockSignals(false);
660 view->gainstaging_db_display->setText(
662 QString::fromStdString(format_db(level.gain_staging_db, DB_WITH_SIGN)));
663 set_peak_label(view->peak_display_label, level.historic_peak_dbfs);
666 ui->lra_meter->set_levels(global_level_lufs, range_low_lufs, range_high_lufs);
667 ui->correlation_meter->set_correlation(correlation);
669 ui->peak_display->setText(QString::fromStdString(format_db(peak_db, DB_BARE)));
670 set_peak_label(ui->peak_display, peak_db);
672 // NOTE: Will be invisible when using multitrack audio.
673 ui->gainstaging_knob->blockSignals(true);
674 ui->gainstaging_knob->setValue(lrintf(bus_levels[0].gain_staging_db * 10.0f));
675 ui->gainstaging_knob->blockSignals(false);
676 ui->gainstaging_db_display->setText(
677 QString::fromStdString(format_db(bus_levels[0].gain_staging_db, DB_WITH_SIGN)));
679 ui->makeup_gain_knob->blockSignals(true);
680 ui->makeup_gain_knob->setValue(lrintf(final_makeup_gain_db * 10.0f));
681 ui->makeup_gain_knob->blockSignals(false);
682 ui->makeup_gain_db_display->setText(
683 QString::fromStdString(format_db(final_makeup_gain_db, DB_WITH_SIGN)));
684 ui->makeup_gain_db_display_2->setText(
685 QString::fromStdString(format_db(final_makeup_gain_db, DB_WITH_SIGN)));
689 void MainWindow::relayout()
691 int height = ui->vertical_layout->geometry().height();
693 double remaining_height = height;
695 // Allocate the height; the most important part is to keep the main displays
696 // at 16:9 if at all possible.
697 double me_width = ui->me_preview->width();
698 double me_height = me_width * 9.0 / 16.0 + ui->label_preview->height() + ui->preview_vertical_layout->spacing();
700 // TODO: Scale the widths when we need to do this.
701 if (me_height / double(height) > 0.8) {
702 me_height = height * 0.8;
704 remaining_height -= me_height + ui->vertical_layout->spacing();
706 // Space between the M/E displays and the audio strip.
707 remaining_height -= ui->vertical_layout->spacing();
709 // The label above the audio strip.
710 double compact_label_height = ui->compact_label->geometry().height() +
711 ui->compact_audio_layout->spacing();
712 remaining_height -= compact_label_height;
714 // The previews will be constrained by the remaining height, and the width.
715 double preview_label_height = previews[0]->title_bar->geometry().height() +
716 previews[0]->main_vertical_layout->spacing();
717 int preview_total_width = ui->preview_displays->geometry().width() - (previews.size() - 1) * ui->preview_displays->spacing();
718 double preview_height = min(remaining_height - preview_label_height, (preview_total_width / double(previews.size())) * 9.0 / 16.0);
719 remaining_height -= preview_height + preview_label_height + ui->vertical_layout->spacing();
721 ui->vertical_layout->setStretch(0, lrintf(me_height));
722 ui->vertical_layout->setStretch(1,
723 lrintf(compact_label_height) +
724 lrintf(remaining_height) +
725 lrintf(preview_height + preview_label_height)); // Audio strip and previews together.
727 ui->compact_audio_layout->setStretch(0, lrintf(compact_label_height));
728 ui->compact_audio_layout->setStretch(1, lrintf(remaining_height)); // Audio strip.
729 ui->compact_audio_layout->setStretch(2, lrintf(preview_height + preview_label_height));
731 // Set the widths for the previews.
732 double preview_width = preview_height * 16.0 / 9.0;
733 for (unsigned i = 0; i < previews.size(); ++i) {
734 ui->preview_displays->setStretch(i, lrintf(preview_width));
737 // The preview horizontal spacer.
738 double remaining_preview_width = preview_total_width - previews.size() * preview_width;
739 ui->preview_displays->setStretch(previews.size(), lrintf(remaining_preview_width));
742 void MainWindow::set_transition_names(vector<string> transition_names)
744 if (transition_names.size() < 1 || transition_names[0].empty()) {
745 transition_btn1->setText(QString(""));
747 transition_btn1->setText(QString::fromStdString(transition_names[0] + " (J)"));
748 ui->transition_btn1->setShortcut(QKeySequence("J"));
750 if (transition_names.size() < 2 || transition_names[1].empty()) {
751 transition_btn2->setText(QString(""));
753 transition_btn2->setText(QString::fromStdString(transition_names[1] + " (K)"));
754 ui->transition_btn2->setShortcut(QKeySequence("K"));
756 if (transition_names.size() < 3 || transition_names[2].empty()) {
757 transition_btn3->setText(QString(""));
759 transition_btn3->setText(QString::fromStdString(transition_names[2] + " (L)"));
760 ui->transition_btn3->setShortcut(QKeySequence("L"));
764 void MainWindow::update_channel_name(Mixer::Output output, const string &name)
766 if (output >= Mixer::OUTPUT_INPUT0) {
767 unsigned channel = output - Mixer::OUTPUT_INPUT0;
768 previews[channel]->label->setText(name.c_str());
772 void MainWindow::update_channel_color(Mixer::Output output, const string &color)
774 if (output >= Mixer::OUTPUT_INPUT0) {
775 unsigned channel = output - Mixer::OUTPUT_INPUT0;
776 previews[channel]->frame->setStyleSheet(QString::fromStdString("background-color:" + color));
780 void MainWindow::transition_clicked(int transition_number)
782 global_mixer->transition_clicked(transition_number);
785 void MainWindow::channel_clicked(int channel_number)
787 if (current_wb_pick_display == channel_number) {
788 // The picking was already done from eventFilter(), since we don't get
789 // the mouse pointer here.
791 global_mixer->channel_clicked(channel_number);
795 void MainWindow::wb_button_clicked(int channel_number)
797 current_wb_pick_display = channel_number;
798 QApplication::setOverrideCursor(Qt::CrossCursor);
801 bool MainWindow::eventFilter(QObject *watched, QEvent *event)
803 if (current_wb_pick_display != -1 &&
804 event->type() == QEvent::MouseButtonRelease &&
805 watched->isWidgetType()) {
806 QApplication::restoreOverrideCursor();
807 if (watched == previews[current_wb_pick_display]->display) {
808 const QMouseEvent *mouse_event = (QMouseEvent *)event;
809 set_white_balance(current_wb_pick_display, mouse_event->x(), mouse_event->y());
811 // The user clicked on something else, give up.
812 // (The click goes through, which might not be ideal, but, yes.)
813 current_wb_pick_display = -1;
821 double srgb_to_linear(double x)
826 return pow((x + 0.055) / 1.055, 2.4);
832 void MainWindow::set_white_balance(int channel_number, int x, int y)
834 // Set the white balance to neutral for the grab. It's probably going to
835 // flicker a bit, but hopefully this display is not live anyway.
836 global_mixer->set_wb(Mixer::OUTPUT_INPUT0 + channel_number, 0.5, 0.5, 0.5);
837 previews[channel_number]->display->updateGL();
838 QRgb reference_color = previews[channel_number]->display->grabFrameBuffer().pixel(x, y);
840 double r = srgb_to_linear(qRed(reference_color) / 255.0);
841 double g = srgb_to_linear(qGreen(reference_color) / 255.0);
842 double b = srgb_to_linear(qBlue(reference_color) / 255.0);
843 global_mixer->set_wb(Mixer::OUTPUT_INPUT0 + channel_number, r, g, b);
844 previews[channel_number]->display->updateGL();
847 void MainWindow::audio_state_changed()
849 post_to_main_thread([this]{
850 InputMapping mapping = global_audio_mixer->get_input_mapping();
851 for (unsigned bus_index = 0; bus_index < mapping.buses.size(); ++bus_index) {
852 const InputMapping::Bus &bus = mapping.buses[bus_index];
854 if (bus.device.type == InputSourceType::ALSA_INPUT) {
855 ALSAPool::Device::State state = global_audio_mixer->get_alsa_card_state(bus.device.index);
856 if (state == ALSAPool::Device::State::STARTING) {
858 } else if (state == ALSAPool::Device::State::DEAD) {
863 audio_miniviews[bus_index]->bus_desc_label->setFullText(
864 QString::fromStdString(bus.name + suffix));
865 audio_expanded_views[bus_index]->bus_desc_label->setFullText(
866 QString::fromStdString(bus.name + suffix));