X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=mainwindow.cpp;h=4b8eb51482543b01549a36d02a19c286f14abcc4;hb=b85c1986b7ea63534899e2eb589f9e0888d5ccda;hp=eacda1cf5f12b19fbda76546f5642a92a3abb682;hpb=390521f709026cb1acdbde84ef77d1490da1ffa2;p=nageru

diff --git a/mainwindow.cpp b/mainwindow.cpp
index eacda1c..4b8eb51 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -2,23 +2,27 @@
 
 #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>
 #include <QPushButton>
 #include <QResizeEvent>
 #include <QShortcut>
-#include <QSignalMapper>
 #include <QSize>
 #include <QString>
 
+#include "aboutdialog.h"
+#include "flags.h"
 #include "glwidget.h"
 #include "lrameter.h"
 #include "mixer.h"
+#include "post_to_main_thread.h"
 #include "ui_display.h"
 #include "ui_mainwindow.h"
 #include "vumeter.h"
@@ -26,11 +30,27 @@
 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)
 {
@@ -40,26 +60,31 @@ MainWindow::MainWindow()
 	ui->me_live->set_output(Mixer::OUTPUT_LIVE);
 	ui->me_preview->set_output(Mixer::OUTPUT_PREVIEW);
 
-	// Hook up the transition buttons.
-	// TODO: Make them dynamic.
-	{
-		QSignalMapper *mapper = new QSignalMapper(this);
-		mapper->setMapping(ui->transition_btn1, 0),
-		mapper->setMapping(ui->transition_btn2, 1);
-		mapper->setMapping(ui->transition_btn3, 2);
-		connect(ui->transition_btn1, SIGNAL(clicked()), mapper, SLOT(map()));
-		connect(ui->transition_btn2, SIGNAL(clicked()), mapper, SLOT(map()));
-		connect(ui->transition_btn3, SIGNAL(clicked()), mapper, SLOT(map()));
-		connect(mapper, SIGNAL(mapped(int)), this, SLOT(transition_clicked(int)));
+	// 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);
+
+	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::vector<std::string>>("std::vector<std::string>");
-	connect(ui->me_preview, SIGNAL(transition_names_updated(std::vector<std::string>)),
-	        this, SLOT(set_transition_names(std::vector<std::string>)));
+	qRegisterMetaType<string>("std::string");
+	qRegisterMetaType<vector<string>>("std::vector<std::string>");
+	connect(ui->me_live, &GLWidget::transition_names_updated, this, &MainWindow::set_transition_names);
+	qRegisterMetaType<Mixer::Output>("Mixer::Output");
 }
 
 void MainWindow::resizeEvent(QResizeEvent* event)
@@ -75,7 +100,6 @@ void MainWindow::mixer_created(Mixer *mixer)
 {
 	// Make the previews.
 	unsigned num_previews = mixer->get_num_channels();
-	QSignalMapper *mapper = new QSignalMapper(this);
 
 	for (unsigned i = 0; i < num_previews; ++i) {
 		Mixer::Output output = Mixer::Output(Mixer::OUTPUT_INPUT0 + i);
@@ -84,26 +108,192 @@ void MainWindow::mixer_created(Mixer *mixer)
 		Ui::Display *ui_display = new Ui::Display;
 		ui_display->setupUi(preview);
 		ui_display->label->setText(mixer->get_channel_name(output).c_str());
-		ui_display->wb_button->setVisible(mixer->get_supports_set_wb(output));
 		ui_display->display->set_output(output);
 		ui->preview_displays->insertWidget(previews.size(), preview, 1);
 		previews.push_back(ui_display);
 
 		// Hook up the click.
-		mapper->setMapping(ui_display->display, i);
-		connect(ui_display->display, SIGNAL(clicked()), mapper, SLOT(map()));
+		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);
-		mapper->setMapping(shortcut, i);
-		connect(shortcut, SIGNAL(activated()), mapper, SLOT(map()));
+		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));
 	}
 
-	connect(mapper, SIGNAL(mapped(int)), this, SLOT(channel_clicked(int)));
+	// 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);
+	snprintf(buf, sizeof(buf), "%.1f dB", mixer->get_compressor_threshold_dbfs());
+	ui->compressor_threshold_db_display->setText(buf);
+
+	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);
+	});
+
+	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::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);
+	});
+
+	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->set_limiter_enabled(state == Qt::Checked);
+	});
+	connect(ui->compressor_enabled, &QCheckBox::stateChanged, [this](int state){
+		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, _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()
+{
+	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::gain_staging_knob_changed(int value)
+{
+	ui->gainstaging_auto_checkbox->setCheckState(Qt::Unchecked);
+
+	float gain_db = value * 0.1f;
+	global_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->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->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::limiter_threshold_knob_changed(int value)
+{
+	float threshold_dbfs = value * 0.1f;
+	global_mixer->set_limiter_threshold_dbfs(threshold_dbfs);
+
+	char buf[256];
+	snprintf(buf, sizeof(buf), "%.1f dB", threshold_dbfs);
+	ui->limiter_threshold_db_display->setText(buf);
+}
+
+void MainWindow::compressor_threshold_knob_changed(int value)
+{
+	float threshold_dbfs = value * 0.1f;
+	global_mixer->set_compressor_threshold_dbfs(threshold_dbfs);
+
+	char buf[256];
+	snprintf(buf, sizeof(buf), "%.1f dB", threshold_dbfs);
+	ui->compressor_threshold_db_display->setText(buf);
+}
+
+void MainWindow::reset_meters_button_clicked()
+{
+	global_mixer->reset_meters();
+	ui->peak_display->setText("-inf");
+	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,
+                                      float correlation)
+{
+	timeval now;
+	gettimeofday(&now, nullptr);
 
-	mixer->set_audio_level_callback([this](float level_lufs, float peak_db, float global_level_lufs, float range_low_lufs, float range_high_lufs){
+	// 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 = now.tv_sec - last_audio_level_callback.tv_sec +
+		1e-6 * (now.tv_usec - last_audio_level_callback.tv_usec);
+	if (last_update_age < 0.100) {
+		return;
+	}
+	last_audio_level_callback = now;
+
+	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);
@@ -113,60 +303,99 @@ void MainWindow::mixer_created(Mixer *mixer)
 		} 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);
+		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);
 	});
 }
 
 void MainWindow::relayout()
 {
-	int width = size().width();
-	int height = size().height();
+	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();
+	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();
+
+	double audiostrip_height = ui->audiostrip->geometry().height();
+	remaining_height -= audiostrip_height + ui->vertical_layout->spacing();
 
 	// The previews will be constrained by the remaining height, and the width.
-	// FIXME: spacing?
-	double preview_label_height = previews[0]->label->height();
-	double preview_height = std::min(height - me_height - preview_label_height, (width / double(previews.size())) * 9.0 / 16.0);
+	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, std::max<int>(1, lrintf(height - me_height - preview_height)));
-	ui->vertical_layout->setStretch(2, lrintf(preview_height + preview_label_height));
+	ui->vertical_layout->setStretch(1, 0);  // Don't stretch the audiostrip.
+	ui->vertical_layout->setStretch(2, max<int>(1, remaining_height));  // Spacer.
+	ui->vertical_layout->setStretch(3, lrintf(preview_height + preview_label_height));
 
 	// Set the widths for the previews.
-	double preview_width = preview_height * 16.0 / 9.0;  // FIXME: spacing?
-
+	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 spacer.
-	ui->preview_displays->setStretch(previews.size(), lrintf(width - previews.size() * 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<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_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));
 	}
 }
 
@@ -177,5 +406,62 @@ void MainWindow::transition_clicked(int transition_number)
 
 void MainWindow::channel_clicked(int channel_number)
 {
-	global_mixer->channel_clicked(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();
 }