X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=mainwindow.cpp;h=3f9873ffa76983866ed9c8c02ce164d6bc075206;hb=b0d8d860fba68b63b5cd70ef97d81b7146b031ab;hp=b8d9e67a9461cb81394645088e30fa95737abcb5;hpb=2d6d164028679a48b137ec4761e5d9d93eb7f29e;p=nageru diff --git a/mainwindow.cpp b/mainwindow.cpp index b8d9e67..3f9873f 100644 --- a/mainwindow.cpp +++ b/mainwindow.cpp @@ -1,23 +1,597 @@ #include "mainwindow.h" -#include "window.h" -#include -#include "context.h" +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "aboutdialog.h" +#include "disk_space_estimator.h" +#include "flags.h" +#include "glwidget.h" +#include "input_mapping_dialog.h" +#include "lrameter.h" #include "mixer.h" +#include "post_to_main_thread.h" +#include "ui_audio_miniview.h" +#include "ui_display.h" +#include "ui_mainwindow.h" +#include "vumeter.h" + +class QResizeEvent; + +using namespace std; +using namespace std::chrono; +using namespace std::placeholders; + +Q_DECLARE_METATYPE(std::string); +Q_DECLARE_METATYPE(std::vector); + +MainWindow *global_mainwindow = nullptr; + +namespace { + +void schedule_cut_signal(int ignored) +{ + global_mixer->schedule_cut(); +} -#include "ui_mainwindow.cpp" +void quit_signal(int ignored) +{ + global_mainwindow->close(); +} + +constexpr unsigned DB_NO_FLAGS = 0x0; +constexpr unsigned DB_WITH_SIGN = 0x1; +constexpr unsigned DB_BARE = 0x2; -using std::thread; +string format_db(double db, unsigned flags) +{ + string text; + if (flags & DB_WITH_SIGN) { + if (isfinite(db)) { + char buf[256]; + snprintf(buf, sizeof(buf), "%+.1f", db); + text = buf; + } else if (db < 0.0) { + text = "-∞"; + } else { + // Should never happen, really. + text = "+∞"; + } + } else { + if (isfinite(db)) { + char buf[256]; + snprintf(buf, sizeof(buf), "%.1f", db); + text = buf; + } else if (db < 0.0) { + text = "-∞"; + } else { + // Should never happen, really. + text = "∞"; + } + } + if (!(flags & DB_BARE)) { + text += " dB"; + } + return text; +} + +} // namespace MainWindow::MainWindow() + : ui(new Ui::MainWindow) { - Ui::MainWindow *ui = new Ui::MainWindow; + global_mainwindow = this; ui->setupUi(this); - connect(ui->cut_btn, SIGNAL(clicked()), this, SLOT(cut())); + + 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("std::string"); + qRegisterMetaType>("std::vector"); + connect(ui->me_live, &GLWidget::transition_names_updated, this, &MainWindow::set_transition_names); + qRegisterMetaType("Mixer::Output"); + + 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(); + + // TODO: Fetch all of the values these for completeness, + // not just the enable knobs implied by flags. + ui->locut_enabled->setChecked(global_mixer->get_audio_mixer()->get_locut_enabled()); + 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()); + 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()); + + ui->limiter_threshold_db_display->setText( + QString::fromStdString(format_db(mixer->get_audio_mixer()->get_limiter_threshold_dbfs(), DB_WITH_SIGN))); + ui->compressor_threshold_db_display->setText( + QString::fromStdString(format_db(mixer->get_audio_mixer()->get_compressor_threshold_dbfs(), DB_WITH_SIGN))); + + connect(ui->locut_cutoff_knob, &QDial::valueChanged, this, &MainWindow::cutoff_knob_changed); + cutoff_knob_changed(ui->locut_cutoff_knob->value()); + connect(ui->locut_enabled, &QCheckBox::stateChanged, [this](int state){ + global_mixer->get_audio_mixer()->set_locut_enabled(state == Qt::Checked); + }); + + 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); + }); + 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->compressor_threshold_knob, &QDial::valueChanged, this, &MainWindow::compressor_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->compressor_enabled, &QCheckBox::stateChanged, [this](int state){ + global_mixer->get_audio_mixer()->set_compressor_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, _9)); + + 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; + // TODO: Set the fader position. + ui->faders->addWidget(channel); + + connect(ui_audio_miniview->fader, &NonLinearFader::dbValueChanged, + bind(&MainWindow::mini_fader_changed, this, ui_audio_miniview, bus_index, _1)); + } +} + +void MainWindow::mixer_shutting_down() +{ + ui->me_live->clean_context(); + ui->me_preview->clean_context(); + for (Ui::Display *display : previews) { + display->display->clean_context(); + } +} + +void MainWindow::cut_triggered() +{ + global_mixer->schedule_cut(); +} + +void MainWindow::x264_bitrate_triggered() +{ + bool ok; + int new_bitrate = QInputDialog::getInt(this, "Change x264 bitrate", "Choose new bitrate for x264 HTTP output (from 100–100,000 kbit/sec):", global_flags.x264_bitrate, /*min=*/100, /*max=*/100000, /*step=*/100, &ok); + if (ok && new_bitrate >= 100 && new_bitrate <= 100000) { + global_flags.x264_bitrate = new_bitrate; + global_mixer->change_x264_bitrate(new_bitrate); + } +} + +void MainWindow::exit_triggered() +{ + close(); +} + +void MainWindow::about_triggered() +{ + AboutDialog().exec(); +} + +void MainWindow::input_mapping_triggered() +{ + if (InputMappingDialog().exec() == QDialog::Accepted) { + setup_audio_miniview(); + } +} + +void MainWindow::gain_staging_knob_changed(int value) +{ + ui->gainstaging_auto_checkbox->setCheckState(Qt::Unchecked); + + float gain_db = value * 0.1f; + global_mixer->get_audio_mixer()->set_gain_staging_db(gain_db); + + // The label will be updated by the audio level callback. +} + +void MainWindow::final_makeup_gain_knob_changed(int value) +{ + ui->makeup_gain_auto_checkbox->setCheckState(Qt::Unchecked); + + float gain_db = value * 0.1f; + global_mixer->get_audio_mixer()->set_final_makeup_gain_db(gain_db); + + // The label will be updated by the audio level callback. +} + +void MainWindow::cutoff_knob_changed(int value) +{ + float octaves = value * 0.1f; + float cutoff_hz = 20.0 * pow(2.0, octaves); + global_mixer->get_audio_mixer()->set_locut_cutoff(cutoff_hz); + + char buf[256]; + snprintf(buf, sizeof(buf), "%ld Hz", lrintf(cutoff_hz)); + ui->locut_cutoff_display->setText(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, "Less than a minute"); + } 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), "%dm %ds", 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::limiter_threshold_knob_changed(int value) +{ + float threshold_dbfs = value * 0.1f; + global_mixer->get_audio_mixer()->set_limiter_threshold_dbfs(threshold_dbfs); + ui->limiter_threshold_db_display->setText( + QString::fromStdString(format_db(threshold_dbfs, DB_WITH_SIGN))); +} + +void MainWindow::compressor_threshold_knob_changed(int value) +{ + float threshold_dbfs = value * 0.1f; + global_mixer->get_audio_mixer()->set_compressor_threshold_dbfs(threshold_dbfs); + ui->compressor_threshold_db_display->setText( + QString::fromStdString(format_db(threshold_dbfs, DB_WITH_SIGN))); +} + +void MainWindow::mini_fader_changed(Ui::AudioMiniView *ui, int channel, double volume_db) +{ + char buf[256]; + if (isfinite(volume_db)) { + snprintf(buf, sizeof(buf), "%+.1f dB", volume_db); + ui->fader_label->setText(buf); + } else { + ui->fader_label->setText("-∞ dB"); + } + + global_mixer->get_audio_mixer()->set_fader_volume(channel, volume_db); +} + +void MainWindow::reset_meters_button_clicked() +{ + global_mixer->get_audio_mixer()->reset_meters(); + ui->peak_display->setText(QString::fromStdString(format_db(-HUGE_VAL, DB_WITH_SIGN | DB_BARE))); + ui->peak_display->setStyleSheet(""); +} + +void MainWindow::audio_level_callback(float level_lufs, float peak_db, vector bus_level_lufs, + float global_level_lufs, + float range_low_lufs, float range_high_lufs, + float gain_staging_db, float final_makeup_gain_db, + float correlation) +{ + steady_clock::time_point now = steady_clock::now(); + + // The meters are somewhat inefficient to update. Only update them + // every 100 ms or so (we get updates every 5–20 ms). + double last_update_age = duration(now - last_audio_level_callback).count(); + if (last_update_age < 0.100) { + return; + } + last_audio_level_callback = now; + + post_to_main_thread([=]() { + ui->vu_meter->set_level(level_lufs); + for (unsigned bus_index = 0; bus_index < bus_level_lufs.size(); ++bus_index) { + if (bus_index < audio_miniviews.size()) { + audio_miniviews[bus_index]->vu_meter_meter->set_level( + bus_level_lufs[bus_index]); + } + } + ui->lra_meter->set_levels(global_level_lufs, range_low_lufs, range_high_lufs); + ui->correlation_meter->set_correlation(correlation); + + ui->peak_display->setText(QString::fromStdString(format_db(peak_db, DB_BARE))); + if (peak_db > -0.1f) { // -0.1 dBFS is EBU peak limit. + ui->peak_display->setStyleSheet("QLabel { background-color: red; color: white; }"); + } else { + ui->peak_display->setStyleSheet(""); + } + + ui->gainstaging_knob->blockSignals(true); + ui->gainstaging_knob->setValue(lrintf(gain_staging_db * 10.0f)); + ui->gainstaging_knob->blockSignals(false); + ui->gainstaging_db_display->setText( + QString::fromStdString(format_db(gain_staging_db, DB_WITH_SIGN))); + + ui->makeup_gain_knob->blockSignals(true); + ui->makeup_gain_knob->setValue(lrintf(final_makeup_gain_db * 10.0f)); + ui->makeup_gain_knob->blockSignals(false); + ui->makeup_gain_db_display->setText( + QString::fromStdString(format_db(final_makeup_gain_db, DB_WITH_SIGN))); + }); +} + +void MainWindow::relayout() +{ + int height = ui->vertical_layout->geometry().height(); + + double remaining_height = height; + + // Allocate the height; the most important part is to keep the main displays + // at 16:9 if at all possible. + double me_width = ui->me_preview->width(); + double me_height = me_width * 9.0 / 16.0 + ui->label_preview->height() + ui->preview_vertical_layout->spacing(); + + // TODO: Scale the widths when we need to do this. + if (me_height / double(height) > 0.8) { + me_height = height * 0.8; + } + remaining_height -= me_height + ui->vertical_layout->spacing(); + + // Space between the M/E displays and the audio strip. + remaining_height -= ui->vertical_layout->spacing(); + + // The previews will be constrained by the remaining height, and the width. + double preview_label_height = previews[0]->title_bar->geometry().height() + + previews[0]->main_vertical_layout->spacing(); + int preview_total_width = ui->preview_displays->geometry().width() - (previews.size() - 1) * ui->preview_displays->spacing(); + double preview_height = min(remaining_height - preview_label_height, (preview_total_width / double(previews.size())) * 9.0 / 16.0); + remaining_height -= preview_height + preview_label_height + ui->vertical_layout->spacing(); + + ui->vertical_layout->setStretch(0, lrintf(me_height)); + ui->vertical_layout->setStretch(1, lrintf(remaining_height)); // Audio strip. + ui->vertical_layout->setStretch(2, lrintf(preview_height + preview_label_height)); + + // Set the widths for the previews. + double preview_width = preview_height * 16.0 / 9.0; + for (unsigned i = 0; i < previews.size(); ++i) { + ui->preview_displays->setStretch(i, lrintf(preview_width)); + } + + // The preview horizontal spacer. + double remaining_preview_width = preview_total_width - previews.size() * preview_width; + ui->preview_displays->setStretch(previews.size(), lrintf(remaining_preview_width)); +} + +void MainWindow::set_transition_names(vector transition_names) +{ + if (transition_names.size() < 1 || transition_names[0].empty()) { + transition_btn1->setText(QString("")); + } else { + transition_btn1->setText(QString::fromStdString(transition_names[0] + " (J)")); + ui->transition_btn1->setShortcut(QKeySequence("J")); + } + if (transition_names.size() < 2 || transition_names[1].empty()) { + transition_btn2->setText(QString("")); + } else { + transition_btn2->setText(QString::fromStdString(transition_names[1] + " (K)")); + ui->transition_btn2->setShortcut(QKeySequence("K")); + } + if (transition_names.size() < 3 || transition_names[2].empty()) { + transition_btn3->setText(QString("")); + } else { + transition_btn3->setText(QString::fromStdString(transition_names[2] + " (L)")); + ui->transition_btn3->setShortcut(QKeySequence("L")); + } +} + +void MainWindow::update_channel_name(Mixer::Output output, const string &name) +{ + if (output >= Mixer::OUTPUT_INPUT0) { + unsigned channel = output - Mixer::OUTPUT_INPUT0; + previews[channel]->label->setText(name.c_str()); + } +} + +void MainWindow::update_channel_color(Mixer::Output output, const string &color) +{ + if (output >= Mixer::OUTPUT_INPUT0) { + unsigned channel = output - Mixer::OUTPUT_INPUT0; + previews[channel]->frame->setStyleSheet(QString::fromStdString("background-color:" + color)); + } } -void MainWindow::cut() +void MainWindow::transition_clicked(int transition_number) { - static int i = 0; - mixer_cut(Source((++i) % 3)); + global_mixer->transition_clicked(transition_number); +} + +void MainWindow::channel_clicked(int channel_number) +{ + if (current_wb_pick_display == channel_number) { + // The picking was already done from eventFilter(), since we don't get + // the mouse pointer here. + } else { + global_mixer->channel_clicked(channel_number); + } +} + +void MainWindow::wb_button_clicked(int channel_number) +{ + current_wb_pick_display = channel_number; + QApplication::setOverrideCursor(Qt::CrossCursor); +} + +bool MainWindow::eventFilter(QObject *watched, QEvent *event) +{ + if (current_wb_pick_display != -1 && + event->type() == QEvent::MouseButtonRelease && + watched->isWidgetType()) { + QApplication::restoreOverrideCursor(); + if (watched == previews[current_wb_pick_display]->display) { + const QMouseEvent *mouse_event = (QMouseEvent *)event; + set_white_balance(current_wb_pick_display, mouse_event->x(), mouse_event->y()); + } else { + // The user clicked on something else, give up. + // (The click goes through, which might not be ideal, but, yes.) + current_wb_pick_display = -1; + } + } + return false; +} + +namespace { + +double srgb_to_linear(double x) +{ + if (x < 0.04045) { + return x / 12.92; + } else { + return pow((x + 0.055) / 1.055, 2.4); + } +} + +} // namespace + +void MainWindow::set_white_balance(int channel_number, int x, int y) +{ + // Set the white balance to neutral for the grab. It's probably going to + // flicker a bit, but hopefully this display is not live anyway. + global_mixer->set_wb(Mixer::OUTPUT_INPUT0 + channel_number, 0.5, 0.5, 0.5); + previews[channel_number]->display->updateGL(); + QRgb reference_color = previews[channel_number]->display->grabFrameBuffer().pixel(x, y); + + double r = srgb_to_linear(qRed(reference_color) / 255.0); + double g = srgb_to_linear(qGreen(reference_color) / 255.0); + double b = srgb_to_linear(qBlue(reference_color) / 255.0); + global_mixer->set_wb(Mixer::OUTPUT_INPUT0 + channel_number, r, g, b); + previews[channel_number]->display->updateGL(); }