]> git.sesse.net Git - nageru/blobdiff - mainwindow.cpp
Add a menu option to change x264 video bitrate while running.
[nageru] / mainwindow.cpp
index 01d9de143569ac57a45d17f9065bff2b41239cea..4b8eb51482543b01549a36d02a19c286f14abcc4 100644 (file)
@@ -2,10 +2,12 @@
 
 #include <math.h>
 #include <stdio.h>
+#include <signal.h>
 #include <algorithm>
 #include <string>
 #include <vector>
 #include <QBoxLayout>
+#include <QInputDialog>
 #include <QKeySequence>
 #include <QLabel>
 #include <QMetaType>
@@ -15,6 +17,8 @@
 #include <QSize>
 #include <QString>
 
+#include "aboutdialog.h"
+#include "flags.h"
 #include "glwidget.h"
 #include "lrameter.h"
 #include "mixer.h"
@@ -28,10 +32,25 @@ class QResizeEvent;
 using namespace std;
 using namespace std::placeholders;
 
+Q_DECLARE_METATYPE(std::string);
 Q_DECLARE_METATYPE(std::vector<std::string>);
 
 MainWindow *global_mainwindow = nullptr;
 
+namespace {
+
+void schedule_cut_signal(int ignored)
+{
+       global_mixer->schedule_cut();
+}
+
+void quit_signal(int ignored)
+{
+       global_mainwindow->close();
+}
+
+}  // namespace
+
 MainWindow::MainWindow()
        : ui(new Ui::MainWindow)
 {
@@ -41,11 +60,18 @@ MainWindow::MainWindow()
        ui->me_live->set_output(Mixer::OUTPUT_LIVE);
        ui->me_preview->set_output(Mixer::OUTPUT_PREVIEW);
 
-       // The menu.
+       // 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);
 
-       // Hook up the transition buttons.
+       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));
@@ -55,8 +81,9 @@ MainWindow::MainWindow()
        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_preview, &GLWidget::transition_names_updated, this, &MainWindow::set_transition_names);
+       connect(ui->me_live, &GLWidget::transition_names_updated, this, &MainWindow::set_transition_names);
        qRegisterMetaType<Mixer::Output>("Mixer::Output");
 }
 
@@ -88,8 +115,9 @@ void MainWindow::mixer_created(Mixer *mixer)
                // 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 changed.
-               connect(ui_display->display, &GLWidget::resolution_updated, this, &MainWindow::update_channel_name);
+               // 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);
@@ -100,6 +128,13 @@ void MainWindow::mixer_created(Mixer *mixer)
                connect(ui_display->wb_button, &QPushButton::clicked, bind(&MainWindow::wb_button_clicked, this, i));
        }
 
+       // TODO: Fetch all of the values these for completeness,
+       // not just the enable knobs implied by --flat-audio.
+       ui->locut_enabled->setChecked(global_mixer->get_locut_enabled());
+       ui->gainstaging_auto_checkbox->setChecked(global_mixer->get_gain_staging_auto());
+       ui->limiter_enabled->setChecked(global_mixer->get_limiter_enabled());
+       ui->compressor_enabled->setChecked(global_mixer->get_compressor_enabled());
+
        char buf[256];
        snprintf(buf, sizeof(buf), "%.1f dB", mixer->get_limiter_threshold_dbfs());
        ui->limiter_threshold_db_display->setText(buf);
@@ -108,13 +143,15 @@ void MainWindow::mixer_created(Mixer *mixer)
 
        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->set_locut_enabled(state == Qt::Checked);
+       });
 
-       // Not QDial::valueChanged, as we call setValue() all the time.
-       connect(ui->gainstaging_knob, &QAbstractSlider::sliderMoved, this, &MainWindow::gain_staging_knob_changed);
+       connect(ui->gainstaging_knob, &QAbstractSlider::valueChanged, this, &MainWindow::gain_staging_knob_changed);
        connect(ui->gainstaging_auto_checkbox, &QCheckBox::stateChanged, [this](int state){
                global_mixer->set_gain_staging_auto(state == Qt::Checked);
        });
-       connect(ui->makeup_gain_knob, &QAbstractSlider::sliderMoved, this, &MainWindow::final_makeup_gain_knob_changed);
+       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->set_final_makeup_gain_auto(state == Qt::Checked);
        });
@@ -128,7 +165,20 @@ void MainWindow::mixer_created(Mixer *mixer)
                global_mixer->set_compressor_enabled(state == Qt::Checked);
        });
        connect(ui->reset_meters_button, &QPushButton::clicked, this, &MainWindow::reset_meters_button_clicked);
-       mixer->set_audio_level_callback(bind(&MainWindow::audio_level_callback, this, _1, _2, _3, _4, _5, _6, _7));
+       mixer->set_audio_level_callback(bind(&MainWindow::audio_level_callback, this, _1, _2, _3, _4, _5, _6, _7, _8));
+
+       struct sigaction act;
+       memset(&act, 0, sizeof(act));
+       act.sa_handler = schedule_cut_signal;
+       act.sa_flags = SA_RESTART;
+       sigaction(SIGHUP, &act, nullptr);
+
+       // Mostly for debugging. Don't override SIGINT, that's so evil if
+       // shutdown isn't instant.
+       memset(&act, 0, sizeof(act));
+       act.sa_handler = quit_signal;
+       act.sa_flags = SA_RESTART;
+       sigaction(SIGUSR1, &act, nullptr);
 }
 
 void MainWindow::mixer_shutting_down()
@@ -145,11 +195,26 @@ 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::gain_staging_knob_changed(int value)
 {
        ui->gainstaging_auto_checkbox->setCheckState(Qt::Unchecked);
@@ -208,7 +273,10 @@ void MainWindow::reset_meters_button_clicked()
        ui->peak_display->setStyleSheet("");
 }
 
-void MainWindow::audio_level_callback(float level_lufs, float peak_db, float global_level_lufs, float range_low_lufs, float range_high_lufs, float gain_staging_db, float final_makeup_gain_db)
+void MainWindow::audio_level_callback(float level_lufs, float peak_db, float global_level_lufs,
+                                      float range_low_lufs, float range_high_lufs,
+                                      float gain_staging_db, float final_makeup_gain_db,
+                                      float correlation)
 {
        timeval now;
        gettimeofday(&now, nullptr);
@@ -225,6 +293,7 @@ void MainWindow::audio_level_callback(float level_lufs, float peak_db, float glo
        post_to_main_thread([=]() {
                ui->vu_meter->set_level(level_lufs);
                ui->lra_meter->set_levels(global_level_lufs, range_low_lufs, range_high_lufs);
+               ui->correlation_meter->set_correlation(correlation);
 
                char buf[256];
                snprintf(buf, sizeof(buf), "%.1f", peak_db);
@@ -235,11 +304,15 @@ void MainWindow::audio_level_callback(float level_lufs, float peak_db, float glo
                        ui->peak_display->setStyleSheet("");
                }
 
+               ui->gainstaging_knob->blockSignals(true);
                ui->gainstaging_knob->setValue(lrintf(gain_staging_db * 10.0f));
+               ui->gainstaging_knob->blockSignals(false);
                snprintf(buf, sizeof(buf), "%+.1f dB", gain_staging_db);
                ui->gainstaging_db_display->setText(buf);
 
+               ui->makeup_gain_knob->blockSignals(true);
                ui->makeup_gain_knob->setValue(lrintf(final_makeup_gain_db * 10.0f));
+               ui->makeup_gain_knob->blockSignals(false);
                snprintf(buf, sizeof(buf), "%+.1f dB", final_makeup_gain_db);
                ui->makeup_gain_db_display->setText(buf);
        });
@@ -266,8 +339,9 @@ void MainWindow::relayout()
        remaining_height -= audiostrip_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() + ui->preview_displays->spacing();  // Wrong spacing?
-       int preview_total_width = ui->preview_displays->geometry().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();
 
@@ -278,41 +352,50 @@ void MainWindow::relayout()
 
        // Set the widths for the previews.
        double preview_width = preview_height * 16.0 / 9.0;
-       double remaining_preview_width = preview_total_width;
-
        for (unsigned i = 0; i < previews.size(); ++i) {
                ui->preview_displays->setStretch(i, lrintf(preview_width));
-               remaining_preview_width -= preview_width + ui->preview_displays->spacing();
        }
 
        // 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<string> transition_names)
 {
-       if (transition_names.size() < 1) {
+       if (transition_names.size() < 1 || transition_names[0].empty()) {
                transition_btn1->setText(QString(""));
        } else {
-               transition_btn1->setText(QString::fromStdString(transition_names[0]));
+               transition_btn1->setText(QString::fromStdString(transition_names[0] + " (J)"));
+               ui->transition_btn1->setShortcut(QKeySequence("J"));
        }
-       if (transition_names.size() < 2) {
+       if (transition_names.size() < 2 || transition_names[1].empty()) {
                transition_btn2->setText(QString(""));
        } else {
-               transition_btn2->setText(QString::fromStdString(transition_names[1]));
+               transition_btn2->setText(QString::fromStdString(transition_names[1] + " (K)"));
+               ui->transition_btn2->setShortcut(QKeySequence("K"));
        }
-       if (transition_names.size() < 3) {
+       if (transition_names.size() < 3 || transition_names[2].empty()) {
                transition_btn3->setText(QString(""));
        } else {
-               transition_btn3->setText(QString::fromStdString(transition_names[2]));
+               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_name(Mixer::Output output)
+void MainWindow::update_channel_color(Mixer::Output output, const string &color)
 {
        if (output >= Mixer::OUTPUT_INPUT0) {
                unsigned channel = output - Mixer::OUTPUT_INPUT0;
-               previews[channel]->label->setText(global_mixer->get_channel_name(output).c_str());
+               previews[channel]->frame->setStyleSheet(QString::fromStdString("background-color:" + color));
        }
 }