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 // And bind the same to PgUp/PgDown.
193 auto switch_page = [this]{
194 ui->audio_views->setCurrentIndex(1 - ui->audio_views->currentIndex());
196 connect(new QShortcut(QKeySequence::MoveToNextPage, this), &QShortcut::activated, switch_page);
197 connect(new QShortcut(QKeySequence::MoveToPreviousPage, this), &QShortcut::activated, switch_page);
199 last_audio_level_callback = steady_clock::now() - seconds(1);
202 void MainWindow::resizeEvent(QResizeEvent* event)
204 QMainWindow::resizeEvent(event);
206 // Ask for a relayout, but only after the event loop is done doing relayout
207 // on everything else.
208 QMetaObject::invokeMethod(this, "relayout", Qt::QueuedConnection);
211 void MainWindow::mixer_created(Mixer *mixer)
213 // Make the previews.
214 unsigned num_previews = mixer->get_num_channels();
216 for (unsigned i = 0; i < num_previews; ++i) {
217 Mixer::Output output = Mixer::Output(Mixer::OUTPUT_INPUT0 + i);
219 QWidget *preview = new QWidget(this);
220 Ui::Display *ui_display = new Ui::Display;
221 ui_display->setupUi(preview);
222 ui_display->label->setText(mixer->get_channel_name(output).c_str());
223 ui_display->display->set_output(output);
224 ui->preview_displays->insertWidget(previews.size(), preview, 1);
225 previews.push_back(ui_display);
227 // Hook up the click.
228 connect(ui_display->display, &GLWidget::clicked, bind(&MainWindow::channel_clicked, this, i));
230 // Let the theme update the text whenever the resolution or color changed.
231 connect(ui_display->display, &GLWidget::name_updated, this, &MainWindow::update_channel_name);
232 connect(ui_display->display, &GLWidget::color_updated, this, &MainWindow::update_channel_color);
234 // Hook up the keyboard key.
235 QShortcut *shortcut = new QShortcut(QKeySequence(Qt::Key_1 + i), this);
236 connect(shortcut, &QShortcut::activated, bind(&MainWindow::channel_clicked, this, i));
238 // Hook up the white balance button (irrelevant if invisible).
239 ui_display->wb_button->setVisible(mixer->get_supports_set_wb(output));
240 connect(ui_display->wb_button, &QPushButton::clicked, bind(&MainWindow::wb_button_clicked, this, i));
243 setup_audio_miniview();
244 setup_audio_expanded_view();
245 global_audio_mixer->set_state_changed_callback(bind(&MainWindow::audio_state_changed, this));
247 slave_knob(ui->locut_cutoff_knob, ui->locut_cutoff_knob_2);
248 slave_knob(ui->limiter_threshold_knob, ui->limiter_threshold_knob_2);
249 slave_knob(ui->makeup_gain_knob, ui->makeup_gain_knob_2);
250 slave_checkbox(ui->makeup_gain_auto_checkbox, ui->makeup_gain_auto_checkbox_2);
251 slave_checkbox(ui->limiter_enabled, ui->limiter_enabled_2);
253 // TODO: Fetch all of the values these for completeness,
254 // not just the enable knobs implied by flags.
256 // TODO: Reenable for simple audio.
257 ui->locut_enabled->setChecked(global_audio_mixer->get_locut_enabled(0));
258 connect(ui->locut_enabled, &QCheckBox::stateChanged, [this](int state){
259 global_audio_mixer->set_locut_enabled(0, state == Qt::Checked);
261 ui->gainstaging_knob->setValue(global_audio_mixer->get_gain_staging_db());
262 ui->gainstaging_auto_checkbox->setChecked(global_audio_mixer->get_gain_staging_auto());
263 ui->compressor_enabled->setChecked(global_audio_mixer->get_compressor_enabled());
264 connect(ui->gainstaging_knob, &QAbstractSlider::valueChanged, this, &MainWindow::gain_staging_knob_changed);
265 connect(ui->gainstaging_auto_checkbox, &QCheckBox::stateChanged, [this](int state){
266 global_audio_mixer->set_gain_staging_auto(state == Qt::Checked);
268 ui->compressor_threshold_db_display->setText(
269 QString::fromStdString(format_db(mixer->get_audio_mixer()->get_compressor_threshold_dbfs(), DB_WITH_SIGN)));
270 ui->compressor_threshold_db_display->setText(buf);
271 connect(ui->compressor_threshold_knob, &QDial::valueChanged, this, &MainWindow::compressor_threshold_knob_changed);
272 connect(ui->compressor_enabled, &QCheckBox::stateChanged, [this](int state){
273 global_audio_mixer->set_compressor_enabled(state == Qt::Checked);
276 ui->locut_enabled->setVisible(false);
277 ui->gainstaging_label->setVisible(false);
278 ui->gainstaging_knob->setVisible(false);
279 ui->gainstaging_db_display->setVisible(false);
280 ui->gainstaging_auto_checkbox->setVisible(false);
281 ui->compressor_threshold_label->setVisible(false);
282 ui->compressor_threshold_knob->setVisible(false);
283 ui->compressor_threshold_db_display->setVisible(false);
284 ui->compressor_enabled->setVisible(false);
286 ui->limiter_enabled->setChecked(global_audio_mixer->get_limiter_enabled());
287 ui->makeup_gain_auto_checkbox->setChecked(global_audio_mixer->get_final_makeup_gain_auto());
289 QString limiter_threshold_label(
290 QString::fromStdString(format_db(mixer->get_audio_mixer()->get_limiter_threshold_dbfs(), DB_WITH_SIGN)));
291 ui->limiter_threshold_db_display->setText(limiter_threshold_label);
292 ui->limiter_threshold_db_display_2->setText(limiter_threshold_label);
294 connect(ui->locut_cutoff_knob, &QDial::valueChanged, this, &MainWindow::cutoff_knob_changed);
295 cutoff_knob_changed(ui->locut_cutoff_knob->value());
297 connect(ui->makeup_gain_knob, &QAbstractSlider::valueChanged, this, &MainWindow::final_makeup_gain_knob_changed);
298 connect(ui->makeup_gain_auto_checkbox, &QCheckBox::stateChanged, [this](int state){
299 global_audio_mixer->set_final_makeup_gain_auto(state == Qt::Checked);
302 connect(ui->limiter_threshold_knob, &QDial::valueChanged, this, &MainWindow::limiter_threshold_knob_changed);
303 connect(ui->limiter_enabled, &QCheckBox::stateChanged, [this](int state){
304 global_audio_mixer->set_limiter_enabled(state == Qt::Checked);
306 connect(ui->reset_meters_button, &QPushButton::clicked, this, &MainWindow::reset_meters_button_clicked);
307 mixer->get_audio_mixer()->set_audio_level_callback(bind(&MainWindow::audio_level_callback, this, _1, _2, _3, _4, _5, _6, _7, _8));
309 struct sigaction act;
310 memset(&act, 0, sizeof(act));
311 act.sa_handler = schedule_cut_signal;
312 act.sa_flags = SA_RESTART;
313 sigaction(SIGHUP, &act, nullptr);
315 // Mostly for debugging. Don't override SIGINT, that's so evil if
316 // shutdown isn't instant.
317 memset(&act, 0, sizeof(act));
318 act.sa_handler = quit_signal;
319 act.sa_flags = SA_RESTART;
320 sigaction(SIGUSR1, &act, nullptr);
323 void MainWindow::setup_audio_miniview()
325 // Remove any existing channels.
326 for (QLayoutItem *item; (item = ui->faders->takeAt(0)) != nullptr; ) {
327 delete item->widget();
330 audio_miniviews.clear();
332 // Set up brand new ones from the input mapping.
333 InputMapping mapping = global_audio_mixer->get_input_mapping();
334 audio_miniviews.resize(mapping.buses.size());
335 for (unsigned bus_index = 0; bus_index < mapping.buses.size(); ++bus_index) {
336 QWidget *channel = new QWidget(this);
337 Ui::AudioMiniView *ui_audio_miniview = new Ui::AudioMiniView;
338 ui_audio_miniview->setupUi(channel);
339 ui_audio_miniview->bus_desc_label->setFullText(
340 QString::fromStdString(mapping.buses[bus_index].name));
341 audio_miniviews[bus_index] = ui_audio_miniview;
343 // Set up the peak meter.
344 VUMeter *peak_meter = ui_audio_miniview->peak_meter;
345 peak_meter->set_min_level(-30.0f);
346 peak_meter->set_max_level(0.0f);
347 peak_meter->set_ref_level(0.0f);
349 ui_audio_miniview->fader->setDbValue(global_audio_mixer->get_fader_volume(bus_index));
351 ui->faders->addWidget(channel);
353 connect(ui_audio_miniview->fader, &NonLinearFader::dbValueChanged,
354 bind(&MainWindow::mini_fader_changed, this, bus_index, _1));
355 connect(ui_audio_miniview->peak_display_label, &ClickableLabel::clicked,
357 global_audio_mixer->reset_peak(bus_index);
362 void MainWindow::setup_audio_expanded_view()
364 // Remove any existing channels.
365 for (QLayoutItem *item; (item = ui->buses->takeAt(0)) != nullptr; ) {
366 delete item->widget();
369 audio_expanded_views.clear();
371 // Set up brand new ones from the input mapping.
372 InputMapping mapping = global_audio_mixer->get_input_mapping();
373 audio_expanded_views.resize(mapping.buses.size());
374 for (unsigned bus_index = 0; bus_index < mapping.buses.size(); ++bus_index) {
375 QWidget *channel = new QWidget(this);
376 Ui::AudioExpandedView *ui_audio_expanded_view = new Ui::AudioExpandedView;
377 ui_audio_expanded_view->setupUi(channel);
378 ui_audio_expanded_view->bus_desc_label->setFullText(
379 QString::fromStdString(mapping.buses[bus_index].name));
380 audio_expanded_views[bus_index] = ui_audio_expanded_view;
381 update_eq_label(bus_index, EQ_BAND_TREBLE, global_audio_mixer->get_eq(bus_index, EQ_BAND_TREBLE));
382 update_eq_label(bus_index, EQ_BAND_MID, global_audio_mixer->get_eq(bus_index, EQ_BAND_MID));
383 update_eq_label(bus_index, EQ_BAND_BASS, global_audio_mixer->get_eq(bus_index, EQ_BAND_BASS));
384 ui_audio_expanded_view->fader->setDbValue(global_audio_mixer->get_fader_volume(bus_index));
385 ui->buses->addWidget(channel);
387 ui_audio_expanded_view->locut_enabled->setChecked(global_audio_mixer->get_locut_enabled(bus_index));
388 connect(ui_audio_expanded_view->locut_enabled, &QCheckBox::stateChanged, [this, bus_index](int state){
389 global_audio_mixer->set_locut_enabled(bus_index, state == Qt::Checked);
392 connect(ui_audio_expanded_view->treble_knob, &QDial::valueChanged,
393 bind(&MainWindow::eq_knob_changed, this, bus_index, EQ_BAND_TREBLE, _1));
394 connect(ui_audio_expanded_view->mid_knob, &QDial::valueChanged,
395 bind(&MainWindow::eq_knob_changed, this, bus_index, EQ_BAND_MID, _1));
396 connect(ui_audio_expanded_view->bass_knob, &QDial::valueChanged,
397 bind(&MainWindow::eq_knob_changed, this, bus_index, EQ_BAND_BASS, _1));
399 ui_audio_expanded_view->gainstaging_knob->setValue(global_audio_mixer->get_gain_staging_db(bus_index));
400 ui_audio_expanded_view->gainstaging_auto_checkbox->setChecked(global_audio_mixer->get_gain_staging_auto(bus_index));
401 ui_audio_expanded_view->compressor_enabled->setChecked(global_audio_mixer->get_compressor_enabled(bus_index));
403 connect(ui_audio_expanded_view->gainstaging_knob, &QAbstractSlider::valueChanged, bind(&MainWindow::gain_staging_knob_changed, this, bus_index, _1));
404 connect(ui_audio_expanded_view->gainstaging_auto_checkbox, &QCheckBox::stateChanged, [this, bus_index](int state){
405 global_audio_mixer->set_gain_staging_auto(bus_index, state == Qt::Checked);
408 connect(ui_audio_expanded_view->compressor_threshold_knob, &QDial::valueChanged, bind(&MainWindow::compressor_threshold_knob_changed, this, bus_index, _1));
409 connect(ui_audio_expanded_view->compressor_enabled, &QCheckBox::stateChanged, [this, bus_index](int state){
410 global_audio_mixer->set_compressor_enabled(bus_index, state == Qt::Checked);
413 slave_fader(audio_miniviews[bus_index]->fader, ui_audio_expanded_view->fader);
415 // Set up the peak meter.
416 VUMeter *peak_meter = ui_audio_expanded_view->peak_meter;
417 peak_meter->set_min_level(-30.0f);
418 peak_meter->set_max_level(0.0f);
419 peak_meter->set_ref_level(0.0f);
421 connect(ui_audio_expanded_view->peak_display_label, &ClickableLabel::clicked,
423 global_audio_mixer->reset_peak(bus_index);
426 // Set up the compression attenuation meter.
427 VUMeter *reduction_meter = ui_audio_expanded_view->reduction_meter;
428 reduction_meter->set_min_level(0.0f);
429 reduction_meter->set_max_level(10.0f);
430 reduction_meter->set_ref_level(0.0f);
431 reduction_meter->set_flip(true);
434 update_cutoff_labels(global_audio_mixer->get_locut_cutoff());
437 void MainWindow::mixer_shutting_down()
439 ui->me_live->clean_context();
440 ui->me_preview->clean_context();
441 for (Ui::Display *display : previews) {
442 display->display->clean_context();
446 void MainWindow::cut_triggered()
448 global_mixer->schedule_cut();
451 void MainWindow::x264_bitrate_triggered()
454 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);
455 if (ok && new_bitrate >= 100 && new_bitrate <= 100000) {
456 global_flags.x264_bitrate = new_bitrate;
457 global_mixer->change_x264_bitrate(new_bitrate);
461 void MainWindow::exit_triggered()
466 void MainWindow::about_triggered()
468 AboutDialog().exec();
471 void MainWindow::input_mapping_triggered()
473 if (InputMappingDialog().exec() == QDialog::Accepted) {
474 setup_audio_miniview();
475 setup_audio_expanded_view();
479 void MainWindow::gain_staging_knob_changed(unsigned bus_index, int value)
481 if (bus_index == 0) {
482 ui->gainstaging_auto_checkbox->setCheckState(Qt::Unchecked);
484 if (bus_index < audio_expanded_views.size()) {
485 audio_expanded_views[bus_index]->gainstaging_auto_checkbox->setCheckState(Qt::Unchecked);
488 float gain_db = value * 0.1f;
489 global_audio_mixer->set_gain_staging_db(bus_index, gain_db);
491 // The label will be updated by the audio level callback.
494 void MainWindow::final_makeup_gain_knob_changed(int value)
496 ui->makeup_gain_auto_checkbox->setCheckState(Qt::Unchecked);
498 float gain_db = value * 0.1f;
499 global_audio_mixer->set_final_makeup_gain_db(gain_db);
501 // The label will be updated by the audio level callback.
504 void MainWindow::cutoff_knob_changed(int value)
506 float octaves = value * 0.1f;
507 float cutoff_hz = 20.0 * pow(2.0, octaves);
508 global_audio_mixer->set_locut_cutoff(cutoff_hz);
509 update_cutoff_labels(cutoff_hz);
512 void MainWindow::update_cutoff_labels(float cutoff_hz)
515 snprintf(buf, sizeof(buf), "%ld Hz", lrintf(cutoff_hz));
516 ui->locut_cutoff_display->setText(buf);
517 ui->locut_cutoff_display_2->setText(buf);
519 for (unsigned bus_index = 0; bus_index < audio_expanded_views.size(); ++bus_index) {
520 audio_expanded_views[bus_index]->locut_enabled->setText(
521 QString("Lo-cut: ") + buf);
525 void MainWindow::report_disk_space(off_t free_bytes, double estimated_seconds_left)
528 if (estimated_seconds_left < 60.0) {
529 strcpy(time_str, "<font color=\"red\">Less than a minute</font>");
530 } else if (estimated_seconds_left < 1800.0) { // Less than half an hour: Xm Ys (red).
531 int s = lrintf(estimated_seconds_left);
534 snprintf(time_str, sizeof(time_str), "<font color=\"red\">%dm %ds</font>", m, s);
535 } else if (estimated_seconds_left < 3600.0) { // Less than an hour: Xm.
536 int m = lrintf(estimated_seconds_left / 60.0);
537 snprintf(time_str, sizeof(time_str), "%dm", m);
538 } else if (estimated_seconds_left < 36000.0) { // Less than ten hours: Xh Ym.
539 int m = lrintf(estimated_seconds_left / 60.0);
542 snprintf(time_str, sizeof(time_str), "%dh %dm", h, m);
543 } else { // More than ten hours: Xh.
544 int h = lrintf(estimated_seconds_left / 3600.0);
545 snprintf(time_str, sizeof(time_str), "%dh", h);
548 snprintf(buf, sizeof(buf), "Disk free: %'.0f MB (approx. %s)", free_bytes / 1048576.0, time_str);
550 std::string label = buf;
552 post_to_main_thread([this, label]{
553 disk_free_label->setText(QString::fromStdString(label));
554 ui->menuBar->setCornerWidget(disk_free_label); // Need to set this again for the sizing to get right.
558 void MainWindow::eq_knob_changed(unsigned bus_index, EQBand band, int value)
560 float gain_db = value * 0.1f;
561 global_audio_mixer->set_eq(bus_index, band, gain_db);
563 update_eq_label(bus_index, band, gain_db);
566 void MainWindow::update_eq_label(unsigned bus_index, EQBand band, float gain_db)
568 Ui::AudioExpandedView *view = audio_expanded_views[bus_index];
569 string db_string = format_db(gain_db, DB_WITH_SIGN);
572 view->treble_label->setText(QString::fromStdString("Treble: " + db_string));
575 view->mid_label->setText(QString::fromStdString("Mid: " + db_string));
578 view->bass_label->setText(QString::fromStdString("Bass: " + db_string));
585 void MainWindow::limiter_threshold_knob_changed(int value)
587 float threshold_dbfs = value * 0.1f;
588 global_audio_mixer->set_limiter_threshold_dbfs(threshold_dbfs);
589 ui->limiter_threshold_db_display->setText(
590 QString::fromStdString(format_db(threshold_dbfs, DB_WITH_SIGN)));
591 ui->limiter_threshold_db_display_2->setText(
592 QString::fromStdString(format_db(threshold_dbfs, DB_WITH_SIGN)));
595 void MainWindow::compressor_threshold_knob_changed(unsigned bus_index, int value)
597 float threshold_dbfs = value * 0.1f;
598 global_audio_mixer->set_compressor_threshold_dbfs(bus_index, threshold_dbfs);
600 QString label(QString::fromStdString(format_db(threshold_dbfs, DB_WITH_SIGN)));
601 if (bus_index == 0) {
602 ui->compressor_threshold_db_display->setText(label);
604 if (bus_index < audio_expanded_views.size()) {
605 audio_expanded_views[bus_index]->compressor_threshold_db_display->setText(label);
609 void MainWindow::mini_fader_changed(int bus, double volume_db)
611 QString label(QString::fromStdString(format_db(volume_db, DB_WITH_SIGN)));
612 audio_miniviews[bus]->fader_label->setText(label);
613 audio_expanded_views[bus]->fader_label->setText(label);
615 global_audio_mixer->set_fader_volume(bus, volume_db);
618 void MainWindow::reset_meters_button_clicked()
620 global_audio_mixer->reset_meters();
621 ui->peak_display->setText(QString::fromStdString(format_db(-HUGE_VAL, DB_WITH_SIGN | DB_BARE)));
622 ui->peak_display->setStyleSheet("");
625 void MainWindow::audio_level_callback(float level_lufs, float peak_db, vector<AudioMixer::BusLevel> bus_levels,
626 float global_level_lufs,
627 float range_low_lufs, float range_high_lufs,
628 float final_makeup_gain_db,
631 steady_clock::time_point now = steady_clock::now();
633 // The meters are somewhat inefficient to update. Only update them
634 // every 100 ms or so (we get updates every 5–20 ms). Note that this
635 // means that the digital peak meters are ever so slightly too low
636 // (each update won't be a faithful representation of the highest peak
637 // since the previous update, since there are frames we won't draw),
638 // but the _peak_ of the peak meters will be correct (it's tracked in
639 // AudioMixer, not here), and that's much more important.
640 double last_update_age = duration<double>(now - last_audio_level_callback).count();
641 if (last_update_age < 0.100) {
644 last_audio_level_callback = now;
646 post_to_main_thread([=]() {
647 ui->vu_meter->set_level(level_lufs);
648 for (unsigned bus_index = 0; bus_index < bus_levels.size(); ++bus_index) {
649 if (bus_index < audio_miniviews.size()) {
650 const AudioMixer::BusLevel &level = bus_levels[bus_index];
651 Ui::AudioMiniView *miniview = audio_miniviews[bus_index];
652 miniview->peak_meter->set_level(
653 level.current_level_dbfs[0], level.current_level_dbfs[1]);
654 miniview->peak_meter->set_peak(
655 level.peak_level_dbfs[0], level.peak_level_dbfs[1]);
656 set_peak_label(miniview->peak_display_label, level.historic_peak_dbfs);
658 Ui::AudioExpandedView *view = audio_expanded_views[bus_index];
659 view->peak_meter->set_level(
660 level.current_level_dbfs[0], level.current_level_dbfs[1]);
661 view->peak_meter->set_peak(
662 level.peak_level_dbfs[0], level.peak_level_dbfs[1]);
663 view->reduction_meter->set_level(level.compressor_attenuation_db);
664 view->gainstaging_knob->blockSignals(true);
665 view->gainstaging_knob->setValue(lrintf(level.gain_staging_db * 10.0f));
666 view->gainstaging_knob->blockSignals(false);
667 view->gainstaging_db_display->setText(
669 QString::fromStdString(format_db(level.gain_staging_db, DB_WITH_SIGN)));
670 set_peak_label(view->peak_display_label, level.historic_peak_dbfs);
673 ui->lra_meter->set_levels(global_level_lufs, range_low_lufs, range_high_lufs);
674 ui->correlation_meter->set_correlation(correlation);
676 ui->peak_display->setText(QString::fromStdString(format_db(peak_db, DB_BARE)));
677 set_peak_label(ui->peak_display, peak_db);
679 // NOTE: Will be invisible when using multitrack audio.
680 ui->gainstaging_knob->blockSignals(true);
681 ui->gainstaging_knob->setValue(lrintf(bus_levels[0].gain_staging_db * 10.0f));
682 ui->gainstaging_knob->blockSignals(false);
683 ui->gainstaging_db_display->setText(
684 QString::fromStdString(format_db(bus_levels[0].gain_staging_db, DB_WITH_SIGN)));
686 ui->makeup_gain_knob->blockSignals(true);
687 ui->makeup_gain_knob->setValue(lrintf(final_makeup_gain_db * 10.0f));
688 ui->makeup_gain_knob->blockSignals(false);
689 ui->makeup_gain_db_display->setText(
690 QString::fromStdString(format_db(final_makeup_gain_db, DB_WITH_SIGN)));
691 ui->makeup_gain_db_display_2->setText(
692 QString::fromStdString(format_db(final_makeup_gain_db, DB_WITH_SIGN)));
696 void MainWindow::relayout()
698 int height = ui->vertical_layout->geometry().height();
700 double remaining_height = height;
702 // Allocate the height; the most important part is to keep the main displays
703 // at 16:9 if at all possible.
704 double me_width = ui->me_preview->width();
705 double me_height = me_width * 9.0 / 16.0 + ui->label_preview->height() + ui->preview_vertical_layout->spacing();
707 // TODO: Scale the widths when we need to do this.
708 if (me_height / double(height) > 0.8) {
709 me_height = height * 0.8;
711 remaining_height -= me_height + ui->vertical_layout->spacing();
713 // Space between the M/E displays and the audio strip.
714 remaining_height -= ui->vertical_layout->spacing();
716 // The label above the audio strip.
717 double compact_label_height = ui->compact_label->geometry().height() +
718 ui->compact_audio_layout->spacing();
719 remaining_height -= compact_label_height;
721 // The previews will be constrained by the remaining height, and the width.
722 double preview_label_height = previews[0]->title_bar->geometry().height() +
723 previews[0]->main_vertical_layout->spacing();
724 int preview_total_width = ui->preview_displays->geometry().width() - (previews.size() - 1) * ui->preview_displays->spacing();
725 double preview_height = min(remaining_height - preview_label_height, (preview_total_width / double(previews.size())) * 9.0 / 16.0);
726 remaining_height -= preview_height + preview_label_height + ui->vertical_layout->spacing();
728 ui->vertical_layout->setStretch(0, lrintf(me_height));
729 ui->vertical_layout->setStretch(1,
730 lrintf(compact_label_height) +
731 lrintf(remaining_height) +
732 lrintf(preview_height + preview_label_height)); // Audio strip and previews together.
734 ui->compact_audio_layout->setStretch(0, lrintf(compact_label_height));
735 ui->compact_audio_layout->setStretch(1, lrintf(remaining_height)); // Audio strip.
736 ui->compact_audio_layout->setStretch(2, lrintf(preview_height + preview_label_height));
738 // Set the widths for the previews.
739 double preview_width = preview_height * 16.0 / 9.0;
740 for (unsigned i = 0; i < previews.size(); ++i) {
741 ui->preview_displays->setStretch(i, lrintf(preview_width));
744 // The preview horizontal spacer.
745 double remaining_preview_width = preview_total_width - previews.size() * preview_width;
746 ui->preview_displays->setStretch(previews.size(), lrintf(remaining_preview_width));
749 void MainWindow::set_transition_names(vector<string> transition_names)
751 if (transition_names.size() < 1 || transition_names[0].empty()) {
752 transition_btn1->setText(QString(""));
754 transition_btn1->setText(QString::fromStdString(transition_names[0] + " (J)"));
755 ui->transition_btn1->setShortcut(QKeySequence("J"));
757 if (transition_names.size() < 2 || transition_names[1].empty()) {
758 transition_btn2->setText(QString(""));
760 transition_btn2->setText(QString::fromStdString(transition_names[1] + " (K)"));
761 ui->transition_btn2->setShortcut(QKeySequence("K"));
763 if (transition_names.size() < 3 || transition_names[2].empty()) {
764 transition_btn3->setText(QString(""));
766 transition_btn3->setText(QString::fromStdString(transition_names[2] + " (L)"));
767 ui->transition_btn3->setShortcut(QKeySequence("L"));
771 void MainWindow::update_channel_name(Mixer::Output output, const string &name)
773 if (output >= Mixer::OUTPUT_INPUT0) {
774 unsigned channel = output - Mixer::OUTPUT_INPUT0;
775 previews[channel]->label->setText(name.c_str());
779 void MainWindow::update_channel_color(Mixer::Output output, const string &color)
781 if (output >= Mixer::OUTPUT_INPUT0) {
782 unsigned channel = output - Mixer::OUTPUT_INPUT0;
783 previews[channel]->frame->setStyleSheet(QString::fromStdString("background-color:" + color));
787 void MainWindow::transition_clicked(int transition_number)
789 global_mixer->transition_clicked(transition_number);
792 void MainWindow::channel_clicked(int channel_number)
794 if (current_wb_pick_display == channel_number) {
795 // The picking was already done from eventFilter(), since we don't get
796 // the mouse pointer here.
798 global_mixer->channel_clicked(channel_number);
802 void MainWindow::wb_button_clicked(int channel_number)
804 current_wb_pick_display = channel_number;
805 QApplication::setOverrideCursor(Qt::CrossCursor);
808 bool MainWindow::eventFilter(QObject *watched, QEvent *event)
810 if (current_wb_pick_display != -1 &&
811 event->type() == QEvent::MouseButtonRelease &&
812 watched->isWidgetType()) {
813 QApplication::restoreOverrideCursor();
814 if (watched == previews[current_wb_pick_display]->display) {
815 const QMouseEvent *mouse_event = (QMouseEvent *)event;
816 set_white_balance(current_wb_pick_display, mouse_event->x(), mouse_event->y());
818 // The user clicked on something else, give up.
819 // (The click goes through, which might not be ideal, but, yes.)
820 current_wb_pick_display = -1;
828 double srgb_to_linear(double x)
833 return pow((x + 0.055) / 1.055, 2.4);
839 void MainWindow::set_white_balance(int channel_number, int x, int y)
841 // Set the white balance to neutral for the grab. It's probably going to
842 // flicker a bit, but hopefully this display is not live anyway.
843 global_mixer->set_wb(Mixer::OUTPUT_INPUT0 + channel_number, 0.5, 0.5, 0.5);
844 previews[channel_number]->display->updateGL();
845 QRgb reference_color = previews[channel_number]->display->grabFrameBuffer().pixel(x, y);
847 double r = srgb_to_linear(qRed(reference_color) / 255.0);
848 double g = srgb_to_linear(qGreen(reference_color) / 255.0);
849 double b = srgb_to_linear(qBlue(reference_color) / 255.0);
850 global_mixer->set_wb(Mixer::OUTPUT_INPUT0 + channel_number, r, g, b);
851 previews[channel_number]->display->updateGL();
854 void MainWindow::audio_state_changed()
856 post_to_main_thread([this]{
857 InputMapping mapping = global_audio_mixer->get_input_mapping();
858 for (unsigned bus_index = 0; bus_index < mapping.buses.size(); ++bus_index) {
859 const InputMapping::Bus &bus = mapping.buses[bus_index];
861 if (bus.device.type == InputSourceType::ALSA_INPUT) {
862 ALSAPool::Device::State state = global_audio_mixer->get_alsa_card_state(bus.device.index);
863 if (state == ALSAPool::Device::State::STARTING) {
865 } else if (state == ALSAPool::Device::State::DEAD) {
870 audio_miniviews[bus_index]->bus_desc_label->setFullText(
871 QString::fromStdString(bus.name + suffix));
872 audio_expanded_views[bus_index]->bus_desc_label->setFullText(
873 QString::fromStdString(bus.name + suffix));