X-Git-Url: https://git.sesse.net/?p=nageru;a=blobdiff_plain;f=futatabi%2Fmainwindow.cpp;h=49581e53caeb134d180b1bba5546a8083fec05fa;hp=4a4c0d658f2a54f478d84847295020ec37888163;hb=2cb648106d32b9968f2026536fbead096308c7d1;hpb=f22a41cb05c5cc1bbe8ce391fa918707138afad3

diff --git a/futatabi/mainwindow.cpp b/futatabi/mainwindow.cpp
index 4a4c0d6..49581e5 100644
--- a/futatabi/mainwindow.cpp
+++ b/futatabi/mainwindow.cpp
@@ -5,6 +5,8 @@
 #include "flags.h"
 #include "frame_on_disk.h"
 #include "player.h"
+#include "futatabi_midi_mapping.pb.h"
+#include "midi_mapping_dialog.h"
 #include "shared/aboutdialog.h"
 #include "shared/disk_space_estimator.h"
 #include "shared/post_to_main_thread.h"
@@ -33,9 +35,25 @@ static PlayList *playlist_clips;
 
 extern int64_t current_pts;
 
+namespace {
+
+void set_pts_in(int64_t pts, int64_t current_pts, ClipProxy &clip)
+{
+	pts = std::max<int64_t>(pts, 0);
+	if (clip->pts_out == -1) {
+		pts = std::min(pts, current_pts);
+	} else {
+		pts = std::min(pts, clip->pts_out);
+	}
+	clip->pts_in = pts;
+}
+
+}  // namespace
+
 MainWindow::MainWindow()
 	: ui(new Ui::MainWindow),
-	  db(global_flags.working_directory + "/futatabi.db")
+	  db(global_flags.working_directory + "/futatabi.db"),
+	  midi_mapper(this)
 {
 	global_mainwindow = this;
 	ui->setupUi(this);
@@ -47,8 +65,11 @@ MainWindow::MainWindow()
 			global_flags.interpolation_quality = settings.interpolation_quality() - 1;
 		}
 	}
-	if (!global_flags.cue_point_padding_set) {
-		global_flags.cue_point_padding_seconds = settings.cue_point_padding_seconds();  // Default 0 is fine.
+	if (!global_flags.cue_in_point_padding_set) {
+		global_flags.cue_in_point_padding_seconds = settings.cue_in_point_padding_seconds();  // Default 0 is fine.
+	}
+	if (!global_flags.cue_out_point_padding_set) {
+		global_flags.cue_out_point_padding_seconds = settings.cue_out_point_padding_seconds();  // Default 0 is fine.
 	}
 	if (global_flags.interpolation_quality == 0) {
 		// Allocate something just for simplicity; we won't be using it
@@ -60,6 +81,7 @@ MainWindow::MainWindow()
 	save_settings();
 
 	// The menus.
+	connect(ui->midi_mapping_action, &QAction::triggered, this, &MainWindow::midi_mapping_triggered);
 	connect(ui->exit_action, &QAction::triggered, this, &MainWindow::exit_triggered);
 	connect(ui->export_cliplist_clip_multitrack_action, &QAction::triggered, this, &MainWindow::export_cliplist_clip_multitrack_triggered);
 	connect(ui->export_playlist_clip_interpolated_action, &QAction::triggered, this, &MainWindow::export_playlist_clip_interpolated_triggered);
@@ -96,27 +118,49 @@ MainWindow::MainWindow()
 	connect(ui->quality_3_action, &QAction::toggled, bind(&MainWindow::quality_toggled, this, 3, _1));
 	connect(ui->quality_4_action, &QAction::toggled, bind(&MainWindow::quality_toggled, this, 4, _1));
 
-	// The cue point padding group.
-	QActionGroup *padding_group = new QActionGroup(ui->interpolation_menu);
-	padding_group->addAction(ui->padding_0_action);
-	padding_group->addAction(ui->padding_1_action);
-	padding_group->addAction(ui->padding_2_action);
-	padding_group->addAction(ui->padding_5_action);
-	if (global_flags.cue_point_padding_seconds <= 1e-3) {
-		ui->padding_0_action->setChecked(true);
-	} else if (fabs(global_flags.cue_point_padding_seconds - 1.0) < 1e-3) {
-		ui->padding_1_action->setChecked(true);
-	} else if (fabs(global_flags.cue_point_padding_seconds - 2.0) < 1e-3) {
-		ui->padding_2_action->setChecked(true);
-	} else if (fabs(global_flags.cue_point_padding_seconds - 5.0) < 1e-3) {
-		ui->padding_5_action->setChecked(true);
+	// The cue-in point padding group.
+	QActionGroup *in_padding_group = new QActionGroup(ui->in_padding_menu);
+	in_padding_group->addAction(ui->in_padding_0_action);
+	in_padding_group->addAction(ui->in_padding_1_action);
+	in_padding_group->addAction(ui->in_padding_2_action);
+	in_padding_group->addAction(ui->in_padding_5_action);
+	if (global_flags.cue_in_point_padding_seconds <= 1e-3) {
+		ui->in_padding_0_action->setChecked(true);
+	} else if (fabs(global_flags.cue_in_point_padding_seconds - 1.0) < 1e-3) {
+		ui->in_padding_1_action->setChecked(true);
+	} else if (fabs(global_flags.cue_in_point_padding_seconds - 2.0) < 1e-3) {
+		ui->in_padding_2_action->setChecked(true);
+	} else if (fabs(global_flags.cue_in_point_padding_seconds - 5.0) < 1e-3) {
+		ui->in_padding_5_action->setChecked(true);
 	} else {
 		// Nothing to check, which is fine.
 	}
-	connect(ui->padding_0_action, &QAction::toggled, bind(&MainWindow::padding_toggled, this, 0.0, _1));
-	connect(ui->padding_1_action, &QAction::toggled, bind(&MainWindow::padding_toggled, this, 1.0, _1));
-	connect(ui->padding_2_action, &QAction::toggled, bind(&MainWindow::padding_toggled, this, 2.0, _1));
-	connect(ui->padding_5_action, &QAction::toggled, bind(&MainWindow::padding_toggled, this, 5.0, _1));
+	connect(ui->in_padding_0_action, &QAction::toggled, bind(&MainWindow::in_padding_toggled, this, 0.0, _1));
+	connect(ui->in_padding_1_action, &QAction::toggled, bind(&MainWindow::in_padding_toggled, this, 1.0, _1));
+	connect(ui->in_padding_2_action, &QAction::toggled, bind(&MainWindow::in_padding_toggled, this, 2.0, _1));
+	connect(ui->in_padding_5_action, &QAction::toggled, bind(&MainWindow::in_padding_toggled, this, 5.0, _1));
+
+	// Same for the cue-out padding.
+	QActionGroup *out_padding_group = new QActionGroup(ui->out_padding_menu);
+	out_padding_group->addAction(ui->out_padding_0_action);
+	out_padding_group->addAction(ui->out_padding_1_action);
+	out_padding_group->addAction(ui->out_padding_2_action);
+	out_padding_group->addAction(ui->out_padding_5_action);
+	if (global_flags.cue_out_point_padding_seconds <= 1e-3) {
+		ui->out_padding_0_action->setChecked(true);
+	} else if (fabs(global_flags.cue_out_point_padding_seconds - 1.0) < 1e-3) {
+		ui->out_padding_1_action->setChecked(true);
+	} else if (fabs(global_flags.cue_out_point_padding_seconds - 2.0) < 1e-3) {
+		ui->out_padding_2_action->setChecked(true);
+	} else if (fabs(global_flags.cue_out_point_padding_seconds - 5.0) < 1e-3) {
+		ui->out_padding_5_action->setChecked(true);
+	} else {
+		// Nothing to check, which is fine.
+	}
+	connect(ui->out_padding_0_action, &QAction::toggled, bind(&MainWindow::out_padding_toggled, this, 0.0, _1));
+	connect(ui->out_padding_1_action, &QAction::toggled, bind(&MainWindow::out_padding_toggled, this, 1.0, _1));
+	connect(ui->out_padding_2_action, &QAction::toggled, bind(&MainWindow::out_padding_toggled, this, 2.0, _1));
+	connect(ui->out_padding_5_action, &QAction::toggled, bind(&MainWindow::out_padding_toggled, this, 5.0, _1));
 
 	global_disk_space_estimator = new DiskSpaceEstimator(bind(&MainWindow::report_disk_space, this, _1, _2));
 	disk_free_label = new QLabel(this);
@@ -161,9 +205,16 @@ MainWindow::MainWindow()
 	connect(play, &QShortcut::activated, ui->play_btn, &QPushButton::click);
 	connect(ui->play_btn, &QPushButton::clicked, this, &MainWindow::play_clicked);
 
+	QShortcut *next = new QShortcut(QKeySequence(Qt::Key_N), this);
+	connect(next, &QShortcut::activated, ui->next_btn, &QPushButton::click);
+	connect(ui->next_btn, &QPushButton::clicked, this, &MainWindow::next_clicked);
+
 	connect(ui->stop_btn, &QPushButton::clicked, this, &MainWindow::stop_clicked);
 	ui->stop_btn->setEnabled(false);
 
+	connect(ui->speed_slider, &QAbstractSlider::valueChanged, this, &MainWindow::speed_slider_changed);
+	connect(ui->speed_lock_btn, &QPushButton::clicked, this, &MainWindow::speed_lock_clicked);
+
 	connect(ui->playlist_duplicate_btn, &QPushButton::clicked, this, &MainWindow::playlist_duplicate);
 
 	connect(ui->playlist_remove_btn, &QPushButton::clicked, this, &MainWindow::playlist_remove);
@@ -183,26 +234,38 @@ MainWindow::MainWindow()
 	playlist_selection_changed();  // First time set-up.
 
 	preview_player.reset(new Player(ui->preview_display, Player::NO_STREAM_OUTPUT));
+	preview_player->set_done_callback([this] {
+		post_to_main_thread([this] {
+			preview_player_done();
+		});
+	});
+
 	live_player.reset(new Player(ui->live_display, Player::HTTPD_STREAM_OUTPUT));
 	live_player->set_done_callback([this] {
 		post_to_main_thread([this] {
 			live_player_done();
 		});
 	});
-	live_player->set_progress_callback([this](const map<uint64_t, double> &progress, double time_remaining) {
+	live_player->set_progress_callback([this](const map<uint64_t, double> &progress, TimeRemaining time_remaining) {
 		post_to_main_thread([this, progress, time_remaining] {
 			live_player_clip_progress(progress, time_remaining);
 		});
 	});
 	set_output_status("paused");
+	enable_or_disable_queue_button();
 
 	defer_timeout = new QTimer(this);
 	defer_timeout->setSingleShot(true);
 	connect(defer_timeout, &QTimer::timeout, this, &MainWindow::defer_timer_expired);
 	ui->undo_action->setEnabled(true);
 
+	lock_blink_timeout = new QTimer(this);
+	lock_blink_timeout->setSingleShot(true);
+	connect(lock_blink_timeout, &QTimer::timeout, this, &MainWindow::lock_blink_timer_expired);
+
 	connect(ui->clip_list->selectionModel(), &QItemSelectionModel::currentChanged,
 	        this, &MainWindow::clip_list_selection_changed);
+	enable_or_disable_queue_button();
 
 	// Find out how many cameras we have in the existing frames;
 	// if none, we start with two cameras.
@@ -220,15 +283,35 @@ MainWindow::MainWindow()
 	if (!global_flags.tally_url.empty()) {
 		start_tally();
 	}
+
+	if (!global_flags.midi_mapping_filename.empty()) {
+		MIDIMappingProto midi_mapping;
+		if (!load_midi_mapping_from_file(global_flags.midi_mapping_filename, &midi_mapping)) {
+			fprintf(stderr, "Couldn't load MIDI mapping '%s'; exiting.\n",
+				global_flags.midi_mapping_filename.c_str());
+			abort();
+		}
+		midi_mapper.set_midi_mapping(midi_mapping);
+	}
+	midi_mapper.refresh_lights();
+	midi_mapper.start_thread();
 }
 
 void MainWindow::change_num_cameras()
 {
 	assert(num_cameras >= displays.size());  // We only add, never remove.
 
+	// Make new entries to hide the displays.
+	for (unsigned i = displays.size(); i < num_cameras; ++i) {
+		char title[256];
+		snprintf(title, sizeof(title), "Camera %u", i + 1);
+		QAction *hide_action = ui->hide_camera_menu->addAction(title);
+		hide_action->setCheckable(true);
+		hide_action->setChecked(false);
+		connect(hide_action, &QAction::toggled, bind(&MainWindow::hide_camera_toggled, this, i, _1));
+	}
+
 	// Make new display rows.
-	unsigned display_rows = (num_cameras + 1) / 2;
-	ui->video_displays->setStretch(1, display_rows);
 	for (unsigned i = displays.size(); i < num_cameras; ++i) {
 		QFrame *frame = new QFrame(this);
 		frame->setAutoFillBackground(true);
@@ -241,15 +324,18 @@ void MainWindow::change_num_cameras()
 		display->setAutoFillBackground(true);
 		layout->addWidget(display);
 
-		ui->input_displays->addWidget(frame, i / 2, i % 2);
-		display->set_overlay(to_string(i + 1));
+		if (global_flags.source_labels.count(i + 1)) {
+			display->set_overlay(global_flags.source_labels[i + 1]);
+		} else {
+			display->set_overlay(to_string(i + 1));
+		}
 
 		QPushButton *preview_btn = new QPushButton(this);
 		preview_btn->setMaximumSize(20, 17);
 		preview_btn->setText(QString::fromStdString(to_string(i + 1)));
 		ui->preview_layout->addWidget(preview_btn);
 
-		displays.emplace_back(FrameAndDisplay{ frame, display, preview_btn });
+		displays.emplace_back(FrameAndDisplay{ frame, display, preview_btn, /*hidden=*/false });
 
 		connect(display, &JPEGFrameView::clicked, preview_btn, &QPushButton::click);
 		QShortcut *shortcut = new QShortcut(QKeySequence(Qt::Key_1 + i), this);
@@ -257,6 +343,7 @@ void MainWindow::change_num_cameras()
 
 		connect(preview_btn, &QPushButton::clicked, [this, i] { preview_angle_clicked(i); });
 	}
+	relayout_displays();
 
 	cliplist_clips->change_num_cameras(num_cameras);
 	playlist_clips->change_num_cameras(num_cameras);
@@ -264,9 +351,34 @@ void MainWindow::change_num_cameras()
 	QMetaObject::invokeMethod(this, "relayout", Qt::QueuedConnection);
 }
 
+void MainWindow::relayout_displays()
+{
+	while (ui->input_displays->count() > 0) {
+		QLayoutItem *item = ui->input_displays->takeAt(0);
+		ui->input_displays->removeWidget(item->widget());
+	}
+
+	unsigned cell_idx = 0;
+	for (unsigned i = 0; i < displays.size(); ++i) {
+		if (displays[i].hidden) {
+			displays[i].frame->setVisible(false);
+		} else {
+			displays[i].frame->setVisible(true);
+			ui->input_displays->addWidget(displays[i].frame, cell_idx / 2, cell_idx % 2);
+			++cell_idx;
+		}
+	}
+	ui->video_displays->setStretch(1, (cell_idx + 1) / 2);
+
+	QMetaObject::invokeMethod(this, "relayout", Qt::QueuedConnection);
+}
+
 MainWindow::~MainWindow()
 {
-	// Empty so that we can forward-declare Player in the .h file.
+	// We don't have a context to release Player's OpenGL resources in here,
+	// so instead of crashing on exit, leak it.
+	live_player.release();
+	preview_player.release();
 }
 
 void MainWindow::cue_in_clicked()
@@ -275,16 +387,21 @@ void MainWindow::cue_in_clicked()
 		cliplist_clips->mutable_back()->pts_in = current_pts;
 	} else {
 		Clip clip;
-		clip.pts_in = max<int64_t>(current_pts - lrint(global_flags.cue_point_padding_seconds * TIMEBASE), 0);
+		clip.pts_in = max<int64_t>(current_pts - lrint(global_flags.cue_in_point_padding_seconds * TIMEBASE), 0);
 		cliplist_clips->add_clip(clip);
 		playlist_selection_changed();
 	}
 
+	// Show the clip in the preview.
+	unsigned stream_idx = ui->preview_display->get_stream_idx();
+	preview_single_frame(cliplist_clips->mutable_back()->pts_in, stream_idx, FIRST_AT_OR_AFTER);
+
 	// Select the item so that we can jog it.
 	ui->clip_list->setFocus();
 	QModelIndex index = cliplist_clips->index(cliplist_clips->size() - 1, int(ClipList::Column::IN));
 	ui->clip_list->selectionModel()->setCurrentIndex(index, QItemSelectionModel::ClearAndSelect);
 	ui->clip_list->scrollToBottom();
+	enable_or_disable_queue_button();
 }
 
 void MainWindow::cue_out_clicked()
@@ -293,17 +410,24 @@ void MainWindow::cue_out_clicked()
 		return;
 	}
 
-	cliplist_clips->mutable_back()->pts_out = current_pts + lrint(global_flags.cue_point_padding_seconds * TIMEBASE);
+	cliplist_clips->mutable_back()->pts_out = current_pts + lrint(global_flags.cue_out_point_padding_seconds * TIMEBASE);
+
+	// Show the clip in the preview. (TODO: This won't take padding into account.)
+	unsigned stream_idx = ui->preview_display->get_stream_idx();
+	preview_single_frame(cliplist_clips->mutable_back()->pts_out, stream_idx, LAST_BEFORE);
 
 	// Select the item so that we can jog it.
 	ui->clip_list->setFocus();
 	QModelIndex index = cliplist_clips->index(cliplist_clips->size() - 1, int(ClipList::Column::OUT));
 	ui->clip_list->selectionModel()->setCurrentIndex(index, QItemSelectionModel::ClearAndSelect);
 	ui->clip_list->scrollToBottom();
+	enable_or_disable_queue_button();
 }
 
 void MainWindow::queue_clicked()
 {
+	// See also enable_or_disable_queue_button().
+
 	if (cliplist_clips->empty()) {
 		return;
 	}
@@ -312,11 +436,9 @@ void MainWindow::queue_clicked()
 	if (!selected->hasSelection()) {
 		Clip clip = *cliplist_clips->back();
 		clip.stream_idx = 0;
-		if (clip.pts_out != -1) {
-			playlist_clips->add_clip(clip);
-			playlist_selection_changed();
-			ui->playlist->scrollToBottom();
-		}
+		playlist_clips->add_clip(clip);
+		playlist_selection_changed();
+		ui->playlist->scrollToBottom();
 		return;
 	}
 
@@ -328,15 +450,13 @@ void MainWindow::queue_clicked()
 		clip.stream_idx = ui->preview_display->get_stream_idx();
 	}
 
-	if (clip.pts_out != -1) {
-		playlist_clips->add_clip(clip);
-		playlist_selection_changed();
-		ui->playlist->scrollToBottom();
-		if (!ui->playlist->selectionModel()->hasSelection()) {
-			// TODO: Figure out why this doesn't always seem to actually select the row.
-			QModelIndex bottom = playlist_clips->index(playlist_clips->size() - 1, 0);
-			ui->playlist->setCurrentIndex(bottom);
-		}
+	playlist_clips->add_clip(clip);
+	playlist_selection_changed();
+	ui->playlist->scrollToBottom();
+	if (!ui->playlist->selectionModel()->hasSelection()) {
+		// TODO: Figure out why this doesn't always seem to actually select the row.
+		QModelIndex bottom = playlist_clips->index(playlist_clips->size() - 1, 0);
+		ui->playlist->setCurrentIndex(bottom);
 	}
 }
 
@@ -351,6 +471,8 @@ void MainWindow::preview_clicked()
 			QModelIndex index = selected->currentIndex();
 			const Clip &clip = *playlist_clips->clip(index.row());
 			preview_player->play(clip);
+			preview_playing = true;
+			enable_or_disable_preview_button();
 			return;
 		}
 	}
@@ -361,6 +483,8 @@ void MainWindow::preview_clicked()
 	QItemSelectionModel *selected = ui->clip_list->selectionModel();
 	if (!selected->hasSelection()) {
 		preview_player->play(*cliplist_clips->back());
+		preview_playing = true;
+		enable_or_disable_preview_button();
 		return;
 	}
 
@@ -371,7 +495,12 @@ void MainWindow::preview_clicked()
 	} else {
 		clip.stream_idx = ui->preview_display->get_stream_idx();
 	}
+	if (clip.pts_out == -1) {
+		clip.pts_out = clip.pts_in + int64_t(TIMEBASE) * 86400 * 7;  // One week; effectively infinite, but without overflow issues.
+	}
 	preview_player->play(clip);
+	preview_playing = true;
+	enable_or_disable_preview_button();
 }
 
 void MainWindow::preview_angle_clicked(unsigned stream_idx)
@@ -438,6 +567,64 @@ void MainWindow::playlist_move(int delta)
 	playlist_selection_changed();
 }
 
+void MainWindow::jog_internal(JogDestination jog_destination, int row, int column, int stream_idx, int pts_delta)
+{
+	constexpr int camera_pts_per_pixel = 1500;  // One click of most mice (15 degrees), multiplied by the default wheel_sensitivity.
+
+	int in_column, out_column, camera_column;
+	if (jog_destination == JOG_CLIP_LIST) {
+		in_column = int(ClipList::Column::IN);
+		out_column = int(ClipList::Column::OUT);
+		camera_column = -1;
+	} else if (jog_destination == JOG_PLAYLIST) {
+		in_column = int(PlayList::Column::IN);
+		out_column = int(PlayList::Column::OUT);
+		camera_column = int(PlayList::Column::CAMERA);
+	} else {
+		assert(false);
+	}
+
+	currently_deferring_model_changes = true;
+	{
+		current_change_id = (jog_destination == JOG_CLIP_LIST) ? "cliplist:" : "playlist:";
+		ClipProxy clip = (jog_destination == JOG_CLIP_LIST) ? cliplist_clips->mutable_clip(row) : playlist_clips->mutable_clip(row);
+		if (jog_destination == JOG_PLAYLIST) {
+			stream_idx = clip->stream_idx;
+		}
+
+		if (column == in_column) {
+			current_change_id += "in:" + to_string(row);
+			int64_t pts = clip->pts_in + pts_delta;
+			set_pts_in(pts, current_pts, clip);
+			preview_single_frame(pts, stream_idx, FIRST_AT_OR_AFTER);
+		} else if (column == out_column) {
+			current_change_id += "out:" + to_string(row);
+			int64_t pts = clip->pts_out + pts_delta;
+			pts = std::max(pts, clip->pts_in);
+			pts = std::min(pts, current_pts);
+			clip->pts_out = pts;
+			preview_single_frame(pts, stream_idx, LAST_BEFORE);
+		} else if (column == camera_column) {
+			current_change_id += "camera:" + to_string(row);
+			int angle_degrees = pts_delta;
+			if (last_mousewheel_camera_row == row) {
+				angle_degrees += leftover_angle_degrees;
+			}
+
+			int stream_idx = clip->stream_idx + angle_degrees / camera_pts_per_pixel;
+			stream_idx = std::max(stream_idx, 0);
+			stream_idx = std::min<int>(stream_idx, num_cameras - 1);
+			clip->stream_idx = stream_idx;
+
+			last_mousewheel_camera_row = row;
+			leftover_angle_degrees = angle_degrees % camera_pts_per_pixel;
+
+			// Don't update the live view, that's rarely what the operator wants.
+		}
+	}
+	currently_deferring_model_changes = false;
+}
+
 void MainWindow::defer_timer_expired()
 {
 	state_changed(deferred_state);
@@ -446,10 +633,7 @@ void MainWindow::defer_timer_expired()
 void MainWindow::content_changed()
 {
 	// If we are playing, update the part of the playlist that's not playing yet.
-	vector<ClipWithID> clips;
-	for (unsigned row = 0; row < playlist_clips->size(); ++row) {
-		clips.emplace_back(*playlist_clips->clip_with_id(row));
-	}
+	vector<ClipWithID> clips = get_playlist(0, playlist_clips->size());
 	live_player->splice_play(clips);
 
 	// Serialize the state.
@@ -492,33 +676,35 @@ void MainWindow::save_settings()
 {
 	SettingsProto settings;
 	settings.set_interpolation_quality(global_flags.interpolation_quality + 1);
-	settings.set_cue_point_padding_seconds(global_flags.cue_point_padding_seconds);
+	settings.set_cue_in_point_padding_seconds(global_flags.cue_in_point_padding_seconds);
+	settings.set_cue_out_point_padding_seconds(global_flags.cue_out_point_padding_seconds);
 	db.store_settings(settings);
 }
 
-void MainWindow::play_clicked()
+void MainWindow::lock_blink_timer_expired()
 {
-	if (playlist_clips->empty())
-		return;
+	midi_mapper.set_locked(MIDIMapper::LightState(ui->speed_lock_btn->isChecked()));  // Presumably On, or the timer should have been canceled.
+}
 
+void MainWindow::play_clicked()
+{
 	QItemSelectionModel *selected = ui->playlist->selectionModel();
-	unsigned start_row;
 	if (!selected->hasSelection()) {
-		start_row = 0;
-	} else {
-		start_row = selected->selectedRows(0)[0].row();
+		return;
 	}
+	unsigned start_row = selected->selectedRows(0)[0].row();
 
-	vector<ClipWithID> clips;
-	for (unsigned row = start_row; row < playlist_clips->size(); ++row) {
-		clips.emplace_back(*playlist_clips->clip_with_id(row));
-	}
+	vector<ClipWithID> clips = get_playlist(start_row, playlist_clips->size());
 	live_player->play(clips);
 	playlist_clips->set_progress({ { start_row, 0.0f } });
 	ui->playlist->selectionModel()->clear();
+	ui->stop_btn->setEnabled(true);
 	playlist_selection_changed();
+}
 
-	ui->stop_btn->setEnabled(true);
+void MainWindow::next_clicked()
+{
+	live_player->skip_to_next();
 }
 
 void MainWindow::stop_clicked()
@@ -529,16 +715,40 @@ void MainWindow::stop_clicked()
 	playlist_clips->set_progress({});
 	live_player->play(fake_clip);
 	ui->stop_btn->setEnabled(false);
+	playlist_selection_changed();
+}
+
+void MainWindow::speed_slider_changed(int percent)
+{
+	float speed = percent / 100.0f;
+	ui->speed_lock_btn->setText(QString::fromStdString(" " + to_string(percent) + "%"));
+	live_player->set_master_speed(speed);
+	midi_mapper.set_speed_light(speed);
+}
+
+void MainWindow::speed_lock_clicked()
+{
+	// TODO: Make for a less abrupt transition if we're not already at 100%.
+	ui->speed_slider->setValue(100);  // Also actually sets the master speed and updates the label.
+	ui->speed_slider->setEnabled(!ui->speed_lock_btn->isChecked());
+	midi_mapper.set_locked(MIDIMapper::LightState(ui->speed_lock_btn->isChecked()));
+	lock_blink_timeout->stop();
+}
+
+void MainWindow::preview_player_done()
+{
+	preview_playing = false;
+	enable_or_disable_preview_button();
 }
 
 void MainWindow::live_player_done()
 {
-	playlist_selection_changed();
 	playlist_clips->set_progress({});
 	ui->stop_btn->setEnabled(false);
+	playlist_selection_changed();
 }
 
-void MainWindow::live_player_clip_progress(const map<uint64_t, double> &progress, double time_remaining)
+void MainWindow::live_player_clip_progress(const map<uint64_t, double> &progress, TimeRemaining time_remaining)
 {
 	playlist_clips->set_progress(progress);
 	set_output_status(format_duration(time_remaining) + " left");
@@ -559,26 +769,16 @@ void MainWindow::relayout()
 	ui->preview_display->setMinimumWidth(ui->preview_display->height() * 16 / 9);
 }
 
-void set_pts_in(int64_t pts, int64_t current_pts, ClipProxy &clip)
-{
-	pts = std::max<int64_t>(pts, 0);
-	if (clip->pts_out == -1) {
-		pts = std::min(pts, current_pts);
-	} else {
-		pts = std::min(pts, clip->pts_out);
-	}
-	clip->pts_in = pts;
-}
-
 bool MainWindow::eventFilter(QObject *watched, QEvent *event)
 {
 	constexpr int dead_zone_pixels = 3;  // To avoid that simple clicks get misinterpreted.
-	constexpr int camera_degrees_per_pixel = 15;  // One click of most mice.
 	int scrub_sensitivity = 100;  // pts units per pixel.
 	int wheel_sensitivity = 100;  // pts units per degree.
 
 	if (event->type() == QEvent::FocusIn || event->type() == QEvent::FocusOut) {
 		enable_or_disable_preview_button();
+		playlist_selection_changed();
+		hidden_jog_column = -1;
 	}
 
 	unsigned stream_idx = ui->preview_display->get_stream_idx();
@@ -646,6 +846,11 @@ bool MainWindow::eventFilter(QObject *watched, QEvent *event)
 		if (mouse->modifiers() & Qt::KeyboardModifier::ShiftModifier) {
 			scrub_sensitivity *= 10;
 			wheel_sensitivity *= 10;
+			if (mouse->modifiers() & Qt::KeyboardModifier::ControlModifier) {
+				// Ctrl+Shift is a super-modifier, meant only for things like “go back two hours”.
+				scrub_sensitivity *= 100;
+				wheel_sensitivity *= 100;
+			}
 		}
 		if (mouse->modifiers() & Qt::KeyboardModifier::AltModifier) {  // Note: Shift + Alt cancel each other out.
 			scrub_sensitivity /= 10;
@@ -701,6 +906,11 @@ bool MainWindow::eventFilter(QObject *watched, QEvent *event)
 		if (wheel->modifiers() & Qt::KeyboardModifier::ShiftModifier) {
 			scrub_sensitivity *= 10;
 			wheel_sensitivity *= 10;
+			if (wheel->modifiers() & Qt::KeyboardModifier::ControlModifier) {
+				// Ctrl+Shift is a super-modifier, meant only for things like “go back two hours”.
+				scrub_sensitivity *= 100;
+				wheel_sensitivity *= 100;
+			}
 		}
 		if (wheel->modifiers() & Qt::KeyboardModifier::AltModifier) {  // Note: Shift + Alt cancel each other out.
 			scrub_sensitivity /= 10;
@@ -709,22 +919,22 @@ bool MainWindow::eventFilter(QObject *watched, QEvent *event)
 		}
 
 		QTableView *destination;
-		int in_column, out_column, camera_column;
+		JogDestination jog_destination;
 		if (watched == ui->clip_list->viewport()) {
 			destination = ui->clip_list;
-			in_column = int(ClipList::Column::IN);
-			out_column = int(ClipList::Column::OUT);
-			camera_column = -1;
+			jog_destination = JOG_CLIP_LIST;
 			last_mousewheel_camera_row = -1;
 		} else if (watched == ui->playlist->viewport()) {
 			destination = ui->playlist;
-			in_column = int(PlayList::Column::IN);
-			out_column = int(PlayList::Column::OUT);
-			camera_column = int(PlayList::Column::CAMERA);
+			jog_destination = JOG_PLAYLIST;
+			if (destination->columnAt(wheel->x()) != int(PlayList::Column::CAMERA)) {
+				last_mousewheel_camera_row = -1;
+			}
 		} else {
 			last_mousewheel_camera_row = -1;
 			return false;
 		}
+
 		int column = destination->columnAt(wheel->x());
 		int row = destination->rowAt(wheel->y());
 		if (column == -1 || row == -1)
@@ -736,48 +946,7 @@ bool MainWindow::eventFilter(QObject *watched, QEvent *event)
 			return false;
 		}
 
-		currently_deferring_model_changes = true;
-		{
-			current_change_id = (watched == ui->clip_list->viewport()) ? "cliplist:" : "playlist:";
-			ClipProxy clip = (watched == ui->clip_list->viewport()) ? cliplist_clips->mutable_clip(row) : playlist_clips->mutable_clip(row);
-			if (watched == ui->playlist->viewport()) {
-				stream_idx = clip->stream_idx;
-			}
-
-			if (column != camera_column) {
-				last_mousewheel_camera_row = -1;
-			}
-			if (column == in_column) {
-				current_change_id += "in:" + to_string(row);
-				int64_t pts = clip->pts_in + angle_delta * wheel_sensitivity;
-				set_pts_in(pts, current_pts, clip);
-				preview_single_frame(pts, stream_idx, FIRST_AT_OR_AFTER);
-			} else if (column == out_column) {
-				current_change_id += "out:" + to_string(row);
-				int64_t pts = clip->pts_out + angle_delta * wheel_sensitivity;
-				pts = std::max(pts, clip->pts_in);
-				pts = std::min(pts, current_pts);
-				clip->pts_out = pts;
-				preview_single_frame(pts, stream_idx, LAST_BEFORE);
-			} else if (column == camera_column) {
-				current_change_id += "camera:" + to_string(row);
-				int angle_degrees = angle_delta;
-				if (last_mousewheel_camera_row == row) {
-					angle_degrees += leftover_angle_degrees;
-				}
-
-				int stream_idx = clip->stream_idx + angle_degrees / camera_degrees_per_pixel;
-				stream_idx = std::max(stream_idx, 0);
-				stream_idx = std::min<int>(stream_idx, num_cameras - 1);
-				clip->stream_idx = stream_idx;
-
-				last_mousewheel_camera_row = row;
-				leftover_angle_degrees = angle_degrees % camera_degrees_per_pixel;
-
-				// Don't update the live view, that's rarely what the operator wants.
-			}
-		}
-		currently_deferring_model_changes = false;
+		jog_internal(jog_destination, row, column, stream_idx, angle_delta * wheel_sensitivity);
 		return true;  // Don't scroll.
 	} else if (event->type() == QEvent::MouseButtonRelease) {
 		scrubbing = false;
@@ -825,7 +994,28 @@ void MainWindow::playlist_selection_changed()
 		any_selected && selected->selectedRows().front().row() > 0);
 	ui->playlist_move_down_btn->setEnabled(
 		any_selected && selected->selectedRows().back().row() < int(playlist_clips->size()) - 1);
-	ui->play_btn->setEnabled(!playlist_clips->empty());
+
+	ui->play_btn->setEnabled(any_selected);
+	ui->next_btn->setEnabled(ui->stop_btn->isEnabled());  // TODO: Perhaps not if we're on the last clip?
+	midi_mapper.set_next_ready(ui->next_btn->isEnabled() ? MIDIMapper::On : MIDIMapper::Off);
+
+	// NOTE: The hidden button is still reachable by keyboard or MIDI.
+	if (any_selected) {
+		ui->play_btn->setVisible(true);
+	} else if (ui->stop_btn->isEnabled()) {  // Playing.
+		ui->play_btn->setVisible(false);
+	} else {
+		ui->play_btn->setVisible(true);
+	}
+	ui->next_btn->setVisible(!ui->play_btn->isVisible());
+
+	if (ui->stop_btn->isEnabled()) {  // Playing.
+		midi_mapper.set_play_enabled(MIDIMapper::On);
+	} else if (any_selected) {
+		midi_mapper.set_play_enabled(MIDIMapper::Blinking);
+	} else {
+		midi_mapper.set_play_enabled(MIDIMapper::Off);
+	}
 
 	if (!any_selected) {
 		set_output_status("paused");
@@ -834,18 +1024,41 @@ void MainWindow::playlist_selection_changed()
 		for (size_t row = selected->selectedRows().front().row(); row < playlist_clips->size(); ++row) {
 			clips.emplace_back(*playlist_clips->clip_with_id(row));
 		}
-		double remaining = compute_total_time(clips);
+		TimeRemaining remaining = compute_total_time(clips);
 		set_output_status(format_duration(remaining) + " ready");
 	}
 }
 
-void MainWindow::clip_list_selection_changed(const QModelIndex &current, const QModelIndex &)
+void MainWindow::clip_list_selection_changed(const QModelIndex &current, const QModelIndex &previous)
 {
 	int camera_selected = -1;
 	if (cliplist_clips->is_camera_column(current.column())) {
 		camera_selected = current.column() - int(ClipList::Column::CAMERA_1);
+
+		// See the comment on hidden_jog_column.
+		if (current.row() != previous.row()) {
+			hidden_jog_column = -1;
+		} else if (hidden_jog_column == -1) {
+			hidden_jog_column = previous.column();
+		}
+	} else {
+		hidden_jog_column = -1;
 	}
 	highlight_camera_input(camera_selected);
+	enable_or_disable_queue_button();
+}
+
+vector<ClipWithID> MainWindow::get_playlist(size_t start_row, size_t end_row)
+{
+	vector<ClipWithID> clips;
+	for (unsigned row = start_row; row < end_row; ++row) {
+		ClipWithID clip = *playlist_clips->clip_with_id(row);
+		if (clip.clip.pts_out == -1) {
+			clip.clip.pts_out = clip.clip.pts_in + int64_t(TIMEBASE) * 86400 * 7;  // One week; effectively infinite, but without overflow issues.
+		}
+		clips.emplace_back(clip);
+	}
+	return clips;
 }
 
 void MainWindow::report_disk_space(off_t free_bytes, double estimated_seconds_left)
@@ -881,6 +1094,11 @@ void MainWindow::report_disk_space(off_t free_bytes, double estimated_seconds_le
 	});
 }
 
+void MainWindow::midi_mapping_triggered()
+{
+	MIDIMappingDialog(&midi_mapper).exec();
+}
+
 void MainWindow::exit_triggered()
 {
 	close();
@@ -1019,15 +1237,30 @@ void MainWindow::quality_toggled(int quality, bool checked)
 	save_settings();
 }
 
-void MainWindow::padding_toggled(double seconds, bool checked)
+void MainWindow::in_padding_toggled(double seconds, bool checked)
 {
 	if (!checked) {
 		return;
 	}
-	global_flags.cue_point_padding_seconds = seconds;
+	global_flags.cue_in_point_padding_seconds = seconds;
 	save_settings();
 }
 
+void MainWindow::out_padding_toggled(double seconds, bool checked)
+{
+	if (!checked) {
+		return;
+	}
+	global_flags.cue_out_point_padding_seconds = seconds;
+	save_settings();
+}
+
+void MainWindow::hide_camera_toggled(unsigned camera_idx, bool checked)
+{
+	displays[camera_idx].hidden = checked;
+	relayout_displays();
+}
+
 void MainWindow::highlight_camera_input(int stream_idx)
 {
 	for (unsigned i = 0; i < num_cameras; ++i) {
@@ -1037,6 +1270,7 @@ void MainWindow::highlight_camera_input(int stream_idx)
 			displays[i].frame->setStyleSheet("");
 		}
 	}
+	midi_mapper.highlight_camera_input(stream_idx);
 }
 
 void MainWindow::enable_or_disable_preview_button()
@@ -1049,12 +1283,35 @@ void MainWindow::enable_or_disable_preview_button()
 		QItemSelectionModel *selected = ui->playlist->selectionModel();
 		if (selected->hasSelection()) {
 			ui->preview_btn->setEnabled(true);
+			midi_mapper.set_preview_enabled(preview_playing ? MIDIMapper::On : MIDIMapper::Blinking);
 			return;
 		}
 	}
 
 	// TODO: Perhaps only enable this if something is actually selected.
 	ui->preview_btn->setEnabled(!cliplist_clips->empty());
+	if (preview_playing) {
+		midi_mapper.set_preview_enabled(MIDIMapper::On);
+	} else {
+		midi_mapper.set_preview_enabled(cliplist_clips->empty() ? MIDIMapper::Off : MIDIMapper::Blinking);
+	}
+}
+
+void MainWindow::enable_or_disable_queue_button()
+{
+	// Follows the logic in queue_clicked().
+	// TODO: Perhaps only enable this if something is actually selected.
+
+	bool enabled;
+
+	if (cliplist_clips->empty()) {
+		enabled = false;
+	} else {
+		enabled = true;
+	}
+
+	ui->queue_btn->setEnabled(enabled);
+	midi_mapper.set_queue_enabled(enabled);
 }
 
 void MainWindow::set_output_status(const string &status)
@@ -1089,6 +1346,108 @@ void MainWindow::display_frame(unsigned stream_idx, const FrameOnDisk &frame)
 	displays[stream_idx].display->setFrame(stream_idx, frame);
 }
 
+void MainWindow::preview()
+{
+	post_to_main_thread([this] {
+		preview_clicked();
+	});
+}
+
+void MainWindow::queue()
+{
+	post_to_main_thread([this] {
+		queue_clicked();
+	});
+}
+
+void MainWindow::play()
+{
+	post_to_main_thread([this] {
+		play_clicked();
+	});
+}
+
+void MainWindow::next()
+{
+	post_to_main_thread([this] {
+		next_clicked();
+	});
+}
+
+void MainWindow::toggle_lock()
+{
+	post_to_main_thread([this] {
+		ui->speed_lock_btn->setChecked(!ui->speed_lock_btn->isChecked());
+		speed_lock_clicked();
+	});
+}
+
+void MainWindow::jog(int delta)
+{
+	post_to_main_thread([this, delta] {
+		int64_t pts_delta = delta * (TIMEBASE / 60);  // One click = frame at 60 fps.
+		if (ui->playlist->hasFocus()) {
+			QModelIndex selected = ui->playlist->selectionModel()->currentIndex();
+			if (selected.column() != -1 && selected.row() != -1) {
+				jog_internal(JOG_PLAYLIST, selected.row(), selected.column(), /*stream_idx=*/-1, pts_delta);
+			}
+		} else if (ui->clip_list->hasFocus()) {
+			QModelIndex selected = ui->clip_list->selectionModel()->currentIndex();
+			if (cliplist_clips->is_camera_column(selected.column()) &&
+			    hidden_jog_column != -1) {
+				// See the definition on hidden_jog_column.
+				selected = selected.sibling(selected.row(), hidden_jog_column);
+				ui->clip_list->selectionModel()->setCurrentIndex(selected, QItemSelectionModel::ClearAndSelect);
+				hidden_jog_column = -1;
+			}
+			if (selected.column() != -1 && selected.row() != -1) {
+				jog_internal(JOG_CLIP_LIST, selected.row(), selected.column(), ui->preview_display->get_stream_idx(), pts_delta);
+			}
+		}
+	});
+}
+
+void MainWindow::switch_camera(unsigned camera_idx)
+{
+	post_to_main_thread([this, camera_idx] {
+		if (camera_idx < num_cameras) {  // TODO: Also make this change a highlighted clip?
+			preview_angle_clicked(camera_idx);
+		}
+	});
+}
+
+void MainWindow::set_master_speed(float speed)
+{
+	speed = min(max(speed, 0.1f), 2.0f);
+
+	post_to_main_thread([this, speed] {
+		if (ui->speed_lock_btn->isChecked()) {
+			midi_mapper.set_locked(MIDIMapper::Blinking);
+			lock_blink_timeout->start(1000);
+			return;
+		}
+
+		int percent = lrintf(speed * 100.0f);
+		ui->speed_slider->blockSignals(true);
+		ui->speed_slider->setValue(percent);
+		ui->speed_slider->blockSignals(false);
+		ui->speed_lock_btn->setText(QString::fromStdString(" " + to_string(percent) + "%"));
+
+		live_player->set_master_speed(speed);
+		midi_mapper.set_speed_light(speed);
+	});
+}
+
+void MainWindow::cue_in()
+{
+	post_to_main_thread([this] { cue_in_clicked(); });
+}
+
+void MainWindow::cue_out()
+{
+	post_to_main_thread([this] { cue_out_clicked(); });
+}
+
 template<class Model>
 void MainWindow::replace_model(QTableView *view, Model **model, Model *new_model)
 {