git.sesse.net Git - nageru/blob - mainwindow.cpp

   1 #include "mainwindow.h"
   2
   3 #include "clip_list.h"
   4 #include "player.h"
   5 #include "post_to_main_thread.h"
   6 #include "timebase.h"
   7 #include "ui_mainwindow.h"
   8
   9 #include <string>
  10 #include <vector>
  11
  12 #include <QMouseEvent>
  13 #include <QWheelEvent>
  14 #include <QShortcut>
  15
  16 using namespace std;
  17
  18 MainWindow *global_mainwindow = nullptr;
  19 ClipList *cliplist_clips;
  20 PlayList *playlist_clips;
  21
  22 extern int64_t current_pts;
  23 extern mutex frame_mu;
  24 extern vector<int64_t> frames[MAX_STREAMS];
  25
  26 MainWindow::MainWindow()
  27         : ui(new Ui::MainWindow)
  28 {
  29         global_mainwindow = this;
  30         ui->setupUi(this);
  31
  32         cliplist_clips = new ClipList();
  33         ui->clip_list->setModel(cliplist_clips);
  34
  35         playlist_clips = new PlayList();
  36         ui->playlist->setModel(playlist_clips);
  37
  38         // For scrubbing in the pts columns.
  39         ui->clip_list->viewport()->installEventFilter(this);
  40         ui->playlist->viewport()->installEventFilter(this);
  41
  42         QShortcut *cue_in = new QShortcut(QKeySequence(Qt::Key_A), this);
  43         connect(cue_in, &QShortcut::activated, ui->cue_in_btn, &QPushButton::click);
  44         connect(ui->cue_in_btn, &QPushButton::clicked, this, &MainWindow::cue_in_clicked);
  45
  46         QShortcut *cue_out = new QShortcut(QKeySequence(Qt::Key_S), this);
  47         connect(cue_out, &QShortcut::activated, ui->cue_out_btn, &QPushButton::click);
  48         connect(ui->cue_out_btn, &QPushButton::clicked, this, &MainWindow::cue_out_clicked);
  49
  50         QShortcut *queue = new QShortcut(QKeySequence(Qt::Key_Q), this);
  51         connect(queue, &QShortcut::activated, ui->queue_btn, &QPushButton::click);
  52         connect(ui->queue_btn, &QPushButton::clicked, this, &MainWindow::queue_clicked);
  53
  54         QShortcut *preview = new QShortcut(QKeySequence(Qt::Key_W), this);
  55         connect(preview, &QShortcut::activated, ui->preview_btn, &QPushButton::click);
  56         connect(ui->preview_btn, &QPushButton::clicked, this, &MainWindow::preview_clicked);
  57
  58         QShortcut *play = new QShortcut(QKeySequence(Qt::Key_Space), this);
  59         connect(play, &QShortcut::activated, ui->play_btn, &QPushButton::click);
  60         connect(ui->play_btn, &QPushButton::clicked, this, &MainWindow::play_clicked);
  61
  62         QShortcut *preview_1 = new QShortcut(QKeySequence(Qt::Key_1), this);
  63         connect(preview_1, &QShortcut::activated, ui->preview_1_btn, &QPushButton::click);
  64         connect(ui->input1_display, &JPEGFrameView::clicked, ui->preview_1_btn, &QPushButton::click);
  65         connect(ui->preview_1_btn, &QPushButton::clicked, [this]{ preview_angle_clicked(0); });
  66         ui->input1_display->set_overlay("1");
  67
  68         QShortcut *preview_2 = new QShortcut(QKeySequence(Qt::Key_2), this);
  69         connect(preview_2, &QShortcut::activated, ui->preview_2_btn, &QPushButton::click);
  70         connect(ui->input2_display, &JPEGFrameView::clicked, ui->preview_2_btn, &QPushButton::click);
  71         connect(ui->preview_2_btn, &QPushButton::clicked, [this]{ preview_angle_clicked(1); });
  72         ui->input2_display->set_overlay("2");
  73
  74         QShortcut *preview_3 = new QShortcut(QKeySequence(Qt::Key_3), this);
  75         connect(preview_3, &QShortcut::activated, ui->preview_3_btn, &QPushButton::click);
  76         connect(ui->input3_display, &JPEGFrameView::clicked, ui->preview_3_btn, &QPushButton::click);
  77         connect(ui->preview_3_btn, &QPushButton::clicked, [this]{ preview_angle_clicked(2); });
  78         ui->input3_display->set_overlay("3");
  79
  80         QShortcut *preview_4 = new QShortcut(QKeySequence(Qt::Key_4), this);
  81         connect(preview_4, &QShortcut::activated, ui->preview_4_btn, &QPushButton::click);
  82         connect(ui->input4_display, &JPEGFrameView::clicked, ui->preview_4_btn, &QPushButton::click);
  83         connect(ui->preview_4_btn, &QPushButton::clicked, [this]{ preview_angle_clicked(3); });
  84         ui->input4_display->set_overlay("4");
  85
  86         connect(ui->playlist_duplicate_btn, &QPushButton::clicked, this, &MainWindow::playlist_duplicate);
  87
  88         connect(ui->playlist_remove_btn, &QPushButton::clicked, this, &MainWindow::playlist_remove);
  89         QShortcut *delete_key = new QShortcut(QKeySequence(Qt::Key_Delete), ui->playlist);
  90         connect(delete_key, &QShortcut::activated, [this] {
  91                 if (ui->playlist->hasFocus()) {
  92                         playlist_remove();
  93                 }
  94         });
  95
  96         // TODO: support drag-and-drop.
  97         connect(ui->playlist_move_up_btn, &QPushButton::clicked, [this]{ playlist_move(-1); });
  98         connect(ui->playlist_move_down_btn, &QPushButton::clicked, [this]{ playlist_move(1); });
  99
 100         connect(ui->playlist->selectionModel(), &QItemSelectionModel::selectionChanged,
 101                 this, &MainWindow::playlist_selection_changed);
 102         playlist_selection_changed();  // First time set-up.
 103
 104         preview_player = new Player(ui->preview_display, /*also_output_to_stream=*/false);
 105         live_player = new Player(ui->live_display, /*also_output_to_stream=*/true);
 106         live_player->set_done_callback([this]{
 107                 post_to_main_thread([this]{
 108                         live_player_clip_done();
 109                 });
 110         });
 111         live_player->set_progress_callback([this](double played_this_clip, double total_length) {
 112                 post_to_main_thread([this, played_this_clip, total_length] {
 113                         live_player_clip_progress(played_this_clip, total_length);
 114                 });
 115         });
 116 }
 117
 118 void MainWindow::cue_in_clicked()
 119 {
 120         if (!cliplist_clips->empty() && cliplist_clips->back()->pts_out < 0) {
 121                 cliplist_clips->back()->pts_in = current_pts;
 122                 return;
 123         }
 124         Clip clip;
 125         clip.pts_in = current_pts;
 126         cliplist_clips->add_clip(clip);
 127         playlist_selection_changed();
 128 }
 129
 130 void MainWindow::cue_out_clicked()
 131 {
 132         if (!cliplist_clips->empty()) {
 133                 cliplist_clips->back()->pts_out = current_pts;
 134                 // TODO: select the row in the clip list?
 135         }
 136 }
 137
 138 void MainWindow::queue_clicked()
 139 {
 140         if (cliplist_clips->empty()) {
 141                 return;
 142         }
 143
 144         QItemSelectionModel *selected = ui->clip_list->selectionModel();
 145         if (!selected->hasSelection()) {
 146                 Clip clip = *cliplist_clips->back();
 147                 clip.stream_idx = 0;
 148                 playlist_clips->add_clip(clip);
 149                 return;
 150         }
 151
 152         QModelIndex index = selected->currentIndex();
 153         if (index.column() >= int(ClipList::Column::CAMERA_1) &&
 154             index.column() <= int(ClipList::Column::CAMERA_4)) {
 155                 Clip clip = *cliplist_clips->clip(index.row());
 156                 clip.stream_idx = index.column() - int(ClipList::Column::CAMERA_1);
 157                 playlist_clips->add_clip(clip);
 158                 playlist_selection_changed();
 159         }
 160 }
 161
 162 void MainWindow::preview_clicked()
 163 {
 164         if (cliplist_clips->empty()) return;
 165
 166         QItemSelectionModel *selected = ui->clip_list->selectionModel();
 167         if (!selected->hasSelection()) {
 168                 preview_player->play_clip(*cliplist_clips->back(), 0);
 169                 return;
 170         }
 171
 172         QModelIndex index = selected->currentIndex();
 173         if (index.column() >= int(ClipList::Column::CAMERA_1) &&
 174             index.column() <= int(ClipList::Column::CAMERA_4)) {
 175                 unsigned stream_idx = index.column() - int(ClipList::Column::CAMERA_1);
 176                 preview_player->play_clip(*cliplist_clips->clip(index.row()), stream_idx);
 177         }
 178 }
 179
 180 void MainWindow::preview_angle_clicked(unsigned stream_idx)
 181 {
 182         preview_player->override_angle(stream_idx);
 183
 184         // Change the selection if we were previewing a clip from the clip list.
 185         // (The only other thing we could be showing is a pts scrub, and if so,
 186         // that would be selected.)
 187         QItemSelectionModel *selected = ui->clip_list->selectionModel();
 188         if (selected->hasSelection()) {
 189                 QModelIndex cell = selected->selectedIndexes()[0];
 190                 int column = int(ClipList::Column::CAMERA_1) + stream_idx;
 191                 selected->setCurrentIndex(cell.sibling(cell.row(), column), QItemSelectionModel::ClearAndSelect);
 192         }
 193 }
 194
 195 void MainWindow::playlist_duplicate()
 196 {
 197         QItemSelectionModel *selected = ui->playlist->selectionModel();
 198         if (!selected->hasSelection()) {
 199                 // Should have been grayed out, but OK.
 200                 return;
 201         }
 202         QModelIndexList rows = selected->selectedRows();
 203         int first = rows.front().row(), last = rows.back().row();
 204         playlist_clips->duplicate_clips(first, last);
 205         playlist_selection_changed();
 206 }
 207
 208 void MainWindow::playlist_remove()
 209 {
 210         QItemSelectionModel *selected = ui->playlist->selectionModel();
 211         if (!selected->hasSelection()) {
 212                 // Should have been grayed out, but OK.
 213                 return;
 214         }
 215         QModelIndexList rows = selected->selectedRows();
 216         int first = rows.front().row(), last = rows.back().row();
 217         playlist_clips->erase_clips(first, last);
 218
 219         // TODO: select the next one in the list?
 220
 221         playlist_selection_changed();
 222 }
 223
 224 void MainWindow::playlist_move(int delta)
 225 {
 226         QItemSelectionModel *selected = ui->playlist->selectionModel();
 227         if (!selected->hasSelection()) {
 228                 // Should have been grayed out, but OK.
 229                 return;
 230         }
 231
 232         QModelIndexList rows = selected->selectedRows();
 233         int first = rows.front().row(), last = rows.back().row();
 234         if ((delta == -1 && first == 0) ||
 235             (delta == 1 && size_t(last) == playlist_clips->size() - 1)) {
 236                 // Should have been grayed out, but OK.
 237                 return;
 238         }
 239
 240         playlist_clips->move_clips(first, last, delta);
 241         playlist_selection_changed();
 242 }
 243
 244 void MainWindow::play_clicked()
 245 {
 246         if (playlist_clips->empty()) return;
 247
 248         QItemSelectionModel *selected = ui->playlist->selectionModel();
 249         int row;
 250         if (!selected->hasSelection()) {
 251                 row = 0;
 252         } else {
 253                 row = selected->selectedRows(0)[0].row();
 254         }
 255
 256         const Clip &clip = *playlist_clips->clip(row);
 257         live_player->play_clip(clip, clip.stream_idx);
 258         playlist_clips->set_currently_playing(row);
 259         playlist_selection_changed();
 260 }
 261
 262 void MainWindow::live_player_clip_done()
 263 {
 264         int row = playlist_clips->get_currently_playing();
 265         if (row != -1 && row < int(playlist_clips->size()) - 1) {
 266                 ++row;
 267                 const Clip &clip = *playlist_clips->clip(row);
 268                 live_player->play_clip(clip, clip.stream_idx);
 269                 playlist_clips->set_currently_playing(row);
 270         } else {
 271                 playlist_clips->set_currently_playing(-1);
 272                 ui->live_label->setText("Current output (paused)");
 273         }
 274 }
 275
 276 void MainWindow::live_player_clip_progress(double played_this_clip, double total_length)
 277 {
 278         double remaining = total_length - played_this_clip;
 279         for (int row = playlist_clips->get_currently_playing() + 1; row < int(playlist_clips->size()); ++row) {
 280                 const Clip clip = *playlist_clips->clip(row);
 281                 remaining += double(clip.pts_out - clip.pts_in) / TIMEBASE / 0.5;   // FIXME: stop hardcoding speed.
 282         }
 283         int remaining_ms = lrint(remaining * 1e3);
 284
 285         int ms = remaining_ms % 1000;
 286         remaining_ms /= 1000;
 287         int s = remaining_ms % 60;
 288         remaining_ms /= 60;
 289         int m = remaining_ms;
 290
 291         char buf[256];
 292         snprintf(buf, sizeof(buf), "Current output (%d:%02d.%03d left)", m, s, ms);
 293         ui->live_label->setText(buf);
 294 }
 295
 296 void MainWindow::resizeEvent(QResizeEvent *event)
 297 {
 298         QMainWindow::resizeEvent(event);
 299
 300         // Ask for a relayout, but only after the event loop is done doing relayout
 301         // on everything else.
 302         QMetaObject::invokeMethod(this, "relayout", Qt::QueuedConnection);
 303 }
 304
 305 void MainWindow::relayout()
 306 {
 307         ui->live_display->setMinimumHeight(ui->live_display->width() * 9 / 16);
 308 }
 309
 310 bool MainWindow::eventFilter(QObject *watched, QEvent *event)
 311 {
 312         constexpr int dead_zone_pixels = 3;  // To avoid that simple clicks get misinterpreted.
 313         constexpr int scrub_sensitivity = 100;  // pts units per pixel.
 314         constexpr int wheel_sensitivity = 100;  // pts units per degree.
 315         constexpr int camera_degrees_per_pixel = 15;  // One click of most mice.
 316
 317         unsigned stream_idx = ui->preview_display->get_stream_idx();
 318
 319         if (event->type() != QEvent::Wheel) {
 320                 last_mousewheel_camera_row = -1;
 321         }
 322
 323         if (event->type() == QEvent::MouseButtonPress) {
 324                 QMouseEvent *mouse = (QMouseEvent *)event;
 325
 326                 QTableView *destination;
 327                 ScrubType type;
 328
 329                 if (watched == ui->clip_list->viewport()) {
 330                         destination = ui->clip_list;
 331                         type = SCRUBBING_CLIP_LIST;
 332                 } else if (watched == ui->playlist->viewport()) {
 333                         destination = ui->playlist;
 334                         type = SCRUBBING_PLAYLIST;
 335                 } else {
 336                         return false;
 337                 }
 338                 int column = destination->columnAt(mouse->x());
 339                 int row = destination->rowAt(mouse->y());
 340                 if (column == -1 || row == -1) return false;
 341
 342                 if (type == SCRUBBING_CLIP_LIST) {
 343                         if (ClipList::Column(column) == ClipList::Column::IN) {
 344                                 scrub_pts_origin = cliplist_clips->clip(row)->pts_in;
 345                                 preview_single_frame(scrub_pts_origin, stream_idx, FIRST_AT_OR_AFTER);
 346                         } else if (ClipList::Column(column) == ClipList::Column::OUT) {
 347                                 scrub_pts_origin = cliplist_clips->clip(row)->pts_out;
 348                                 preview_single_frame(scrub_pts_origin, stream_idx, LAST_BEFORE);
 349                         } else {
 350                                 return false;
 351                         }
 352                 } else {
 353                         if (PlayList::Column(column) == PlayList::Column::IN) {
 354                                 scrub_pts_origin = playlist_clips->clip(row)->pts_in;
 355                                 preview_single_frame(scrub_pts_origin, stream_idx, FIRST_AT_OR_AFTER);
 356                         } else if (PlayList::Column(column) == PlayList::Column::OUT) {
 357                                 scrub_pts_origin = playlist_clips->clip(row)->pts_out;
 358                                 preview_single_frame(scrub_pts_origin, stream_idx, LAST_BEFORE);
 359                         } else {
 360                                 return false;
 361                         }
 362                 }
 363
 364                 scrubbing = true;
 365                 scrub_row = row;
 366                 scrub_column = column;
 367                 scrub_x_origin = mouse->x();
 368                 scrub_type = type;
 369         } else if (event->type() == QEvent::MouseMove) {
 370                 if (scrubbing) {
 371                         QMouseEvent *mouse = (QMouseEvent *)event;
 372                         int offset = mouse->x() - scrub_x_origin;
 373                         int adjusted_offset;
 374                         if (offset >= dead_zone_pixels) {
 375                                 adjusted_offset = offset - dead_zone_pixels;
 376                         } else if (offset < -dead_zone_pixels) {
 377                                 adjusted_offset = offset + dead_zone_pixels;
 378                         } else {
 379                                 adjusted_offset = 0;
 380                         }
 381
 382                         int64_t pts = scrub_pts_origin + adjusted_offset * scrub_sensitivity;
 383
 384                         if (scrub_type == SCRUBBING_CLIP_LIST) {
 385                                 ClipProxy clip = cliplist_clips->clip(scrub_row);
 386                                 if (scrub_column == int(ClipList::Column::IN)) {
 387                                         pts = std::max<int64_t>(pts, 0);
 388                                         pts = std::min(pts, clip->pts_out);
 389                                         clip->pts_in = pts;
 390                                         preview_single_frame(pts, stream_idx, FIRST_AT_OR_AFTER);
 391                                 } else {
 392                                         pts = std::max(pts, clip->pts_in);
 393                                         pts = std::min(pts, current_pts);
 394                                         clip->pts_out = pts;
 395                                         preview_single_frame(pts, stream_idx, LAST_BEFORE);
 396                                 }
 397                         } else {
 398                                 ClipProxy clip = playlist_clips->clip(scrub_row);
 399                                 if (scrub_column == int(PlayList::Column::IN)) {
 400                                         pts = std::max<int64_t>(pts, 0);
 401                                         pts = std::min(pts, clip->pts_out);
 402                                         clip->pts_in = pts;
 403                                         preview_single_frame(pts, clip->stream_idx, FIRST_AT_OR_AFTER);
 404                                 } else {
 405                                         pts = std::max(pts, clip->pts_in);
 406                                         pts = std::min(pts, current_pts);
 407                                         clip->pts_out = pts;
 408                                         preview_single_frame(pts, clip->stream_idx, LAST_BEFORE);
 409                                 }
 410                         }
 411
 412                         return true;  // Don't use this mouse movement for selecting things.
 413                 }
 414         } else if (event->type() == QEvent::Wheel) {
 415                 QWheelEvent *wheel = (QWheelEvent *)event;
 416
 417                 QTableView *destination;
 418                 int in_column, out_column, camera_column;
 419                 if (watched == ui->clip_list->viewport()) {
 420                         destination = ui->clip_list;
 421                         in_column = int(ClipList::Column::IN);
 422                         out_column = int(ClipList::Column::OUT);
 423                         camera_column = -1;
 424                         last_mousewheel_camera_row = -1;
 425                 } else if (watched == ui->playlist->viewport()) {
 426                         destination = ui->playlist;
 427                         in_column = int(PlayList::Column::IN);
 428                         out_column = int(PlayList::Column::OUT);
 429                         camera_column = int(PlayList::Column::CAMERA);
 430                 } else {
 431                         last_mousewheel_camera_row = -1;
 432                         return false;
 433                 }
 434                 int column = destination->columnAt(wheel->x());
 435                 int row = destination->rowAt(wheel->y());
 436                 if (column == -1 || row == -1) return false;
 437
 438                 ClipProxy clip = (watched == ui->clip_list->viewport()) ?
 439                         cliplist_clips->clip(row) : playlist_clips->clip(row);
 440                 if (watched == ui->playlist->viewport()) {
 441                         stream_idx = clip->stream_idx;
 442                 }
 443
 444                 if (column != camera_column) {
 445                         last_mousewheel_camera_row = -1;
 446                 }
 447                 if (column == in_column) {
 448                         int64_t pts = clip->pts_in + wheel->angleDelta().y() * wheel_sensitivity;
 449                         pts = std::max<int64_t>(pts, 0);
 450                         pts = std::min(pts, clip->pts_out);
 451                         clip->pts_in = pts;
 452                         preview_single_frame(pts, stream_idx, FIRST_AT_OR_AFTER);
 453                 } else if (column == out_column) {
 454                         int64_t pts = clip->pts_out + wheel->angleDelta().y() * wheel_sensitivity;
 455                         pts = std::max(pts, clip->pts_in);
 456                         pts = std::min(pts, current_pts);
 457                         clip->pts_out = pts;
 458                         preview_single_frame(pts, stream_idx, LAST_BEFORE);
 459                 } else if (column == camera_column) {
 460                         int angle_degrees = wheel->angleDelta().y();
 461                         if (last_mousewheel_camera_row == row) {
 462                                 angle_degrees += leftover_angle_degrees;
 463                         }
 464
 465                         int stream_idx = clip->stream_idx + angle_degrees / camera_degrees_per_pixel;
 466                         stream_idx = std::max(stream_idx, 0);
 467                         stream_idx = std::min(stream_idx, NUM_CAMERAS - 1);
 468                         clip->stream_idx = stream_idx;
 469
 470                         last_mousewheel_camera_row = row;
 471                         leftover_angle_degrees = angle_degrees % camera_degrees_per_pixel;
 472
 473                         // Don't update the live view, that's rarely what the operator wants.
 474                 }
 475         } else if (event->type() == QEvent::MouseButtonRelease) {
 476                 scrubbing = false;
 477         }
 478         return false;
 479 }
 480
 481 void MainWindow::preview_single_frame(int64_t pts, unsigned stream_idx, MainWindow::Rounding rounding)
 482 {
 483         if (rounding == LAST_BEFORE) {
 484                 lock_guard<mutex> lock(frame_mu);
 485                 if (frames[stream_idx].empty()) return;
 486                 auto it = lower_bound(frames[stream_idx].begin(), frames[stream_idx].end(), pts);
 487                 if (it != frames[stream_idx].end()) {
 488                         pts = *it;
 489                 }
 490         } else {
 491                 assert(rounding == FIRST_AT_OR_AFTER);
 492                 lock_guard<mutex> lock(frame_mu);
 493                 if (frames[stream_idx].empty()) return;
 494                 auto it = upper_bound(frames[stream_idx].begin(), frames[stream_idx].end(), pts - 1);
 495                 if (it != frames[stream_idx].end()) {
 496                         pts = *it;
 497                 }
 498         }
 499
 500         Clip fake_clip;
 501         fake_clip.pts_in = pts;
 502         fake_clip.pts_out = pts + 1;
 503         preview_player->play_clip(fake_clip, stream_idx);
 504 }
 505
 506 void MainWindow::playlist_selection_changed()
 507 {
 508         QItemSelectionModel *selected = ui->playlist->selectionModel();
 509         bool any_selected = selected->hasSelection();
 510         ui->playlist_duplicate_btn->setEnabled(any_selected);
 511         ui->playlist_remove_btn->setEnabled(any_selected);
 512         ui->playlist_move_up_btn->setEnabled(
 513                 any_selected && selected->selectedRows().front().row() > 0);
 514         ui->playlist_move_down_btn->setEnabled(
 515                 any_selected && selected->selectedRows().back().row() < int(playlist_clips->size()) - 1);
 516         ui->play_btn->setEnabled(!playlist_clips->empty());
 517 }