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->mutable_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->mutable_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         Clip clip = *cliplist_clips->clip(index.row());
 154         if (index.column() >= int(ClipList::Column::CAMERA_1) &&
 155             index.column() <= int(ClipList::Column::CAMERA_4)) {
 156                 clip.stream_idx = index.column() - int(ClipList::Column::CAMERA_1);
 157         } else {
 158                 clip.stream_idx = ui->preview_display->get_stream_idx();
 159         }
 160
 161         playlist_clips->add_clip(clip);
 162         playlist_selection_changed();
 163 }
 164
 165 void MainWindow::preview_clicked()
 166 {
 167         if (cliplist_clips->empty()) return;
 168
 169         QItemSelectionModel *selected = ui->clip_list->selectionModel();
 170         if (!selected->hasSelection()) {
 171                 preview_player->play_clip(*cliplist_clips->back(), 0);
 172                 return;
 173         }
 174
 175         QModelIndex index = selected->currentIndex();
 176         unsigned stream_idx;
 177         if (index.column() >= int(ClipList::Column::CAMERA_1) &&
 178             index.column() <= int(ClipList::Column::CAMERA_4)) {
 179                 stream_idx = index.column() - int(ClipList::Column::CAMERA_1);
 180         } else {
 181                 stream_idx = ui->preview_display->get_stream_idx();
 182         }
 183         preview_player->play_clip(*cliplist_clips->clip(index.row()), stream_idx);
 184 }
 185
 186 void MainWindow::preview_angle_clicked(unsigned stream_idx)
 187 {
 188         preview_player->override_angle(stream_idx);
 189
 190         // Change the selection if we were previewing a clip from the clip list.
 191         // (The only other thing we could be showing is a pts scrub, and if so,
 192         // that would be selected.)
 193         QItemSelectionModel *selected = ui->clip_list->selectionModel();
 194         if (selected->hasSelection()) {
 195                 QModelIndex cell = selected->selectedIndexes()[0];
 196                 int column = int(ClipList::Column::CAMERA_1) + stream_idx;
 197                 selected->setCurrentIndex(cell.sibling(cell.row(), column), QItemSelectionModel::ClearAndSelect);
 198         }
 199 }
 200
 201 void MainWindow::playlist_duplicate()
 202 {
 203         QItemSelectionModel *selected = ui->playlist->selectionModel();
 204         if (!selected->hasSelection()) {
 205                 // Should have been grayed out, but OK.
 206                 return;
 207         }
 208         QModelIndexList rows = selected->selectedRows();
 209         int first = rows.front().row(), last = rows.back().row();
 210         playlist_clips->duplicate_clips(first, last);
 211         playlist_selection_changed();
 212 }
 213
 214 void MainWindow::playlist_remove()
 215 {
 216         QItemSelectionModel *selected = ui->playlist->selectionModel();
 217         if (!selected->hasSelection()) {
 218                 // Should have been grayed out, but OK.
 219                 return;
 220         }
 221         QModelIndexList rows = selected->selectedRows();
 222         int first = rows.front().row(), last = rows.back().row();
 223         playlist_clips->erase_clips(first, last);
 224
 225         // TODO: select the next one in the list?
 226
 227         playlist_selection_changed();
 228 }
 229
 230 void MainWindow::playlist_move(int delta)
 231 {
 232         QItemSelectionModel *selected = ui->playlist->selectionModel();
 233         if (!selected->hasSelection()) {
 234                 // Should have been grayed out, but OK.
 235                 return;
 236         }
 237
 238         QModelIndexList rows = selected->selectedRows();
 239         int first = rows.front().row(), last = rows.back().row();
 240         if ((delta == -1 && first == 0) ||
 241             (delta == 1 && size_t(last) == playlist_clips->size() - 1)) {
 242                 // Should have been grayed out, but OK.
 243                 return;
 244         }
 245
 246         playlist_clips->move_clips(first, last, delta);
 247         playlist_selection_changed();
 248 }
 249
 250 void MainWindow::play_clicked()
 251 {
 252         if (playlist_clips->empty()) return;
 253
 254         QItemSelectionModel *selected = ui->playlist->selectionModel();
 255         int row;
 256         if (!selected->hasSelection()) {
 257                 row = 0;
 258         } else {
 259                 row = selected->selectedRows(0)[0].row();
 260         }
 261
 262         const Clip &clip = *playlist_clips->clip(row);
 263         live_player->play_clip(clip, clip.stream_idx);
 264         playlist_clips->set_currently_playing(row);
 265         playlist_selection_changed();
 266 }
 267
 268 void MainWindow::live_player_clip_done()
 269 {
 270         int row = playlist_clips->get_currently_playing();
 271         if (row != -1 && row < int(playlist_clips->size()) - 1) {
 272                 ++row;
 273                 const Clip &clip = *playlist_clips->clip(row);
 274                 live_player->play_clip(clip, clip.stream_idx);
 275                 playlist_clips->set_currently_playing(row);
 276         } else {
 277                 playlist_clips->set_currently_playing(-1);
 278                 ui->live_label->setText("Current output (paused)");
 279         }
 280 }
 281
 282 void MainWindow::live_player_clip_progress(double played_this_clip, double total_length)
 283 {
 284         double remaining = total_length - played_this_clip;
 285         for (int row = playlist_clips->get_currently_playing() + 1; row < int(playlist_clips->size()); ++row) {
 286                 const Clip clip = *playlist_clips->clip(row);
 287                 remaining += double(clip.pts_out - clip.pts_in) / TIMEBASE / 0.5;   // FIXME: stop hardcoding speed.
 288         }
 289         int remaining_ms = lrint(remaining * 1e3);
 290
 291         int ms = remaining_ms % 1000;
 292         remaining_ms /= 1000;
 293         int s = remaining_ms % 60;
 294         remaining_ms /= 60;
 295         int m = remaining_ms;
 296
 297         char buf[256];
 298         snprintf(buf, sizeof(buf), "Current output (%d:%02d.%03d left)", m, s, ms);
 299         ui->live_label->setText(buf);
 300 }
 301
 302 void MainWindow::resizeEvent(QResizeEvent *event)
 303 {
 304         QMainWindow::resizeEvent(event);
 305
 306         // Ask for a relayout, but only after the event loop is done doing relayout
 307         // on everything else.
 308         QMetaObject::invokeMethod(this, "relayout", Qt::QueuedConnection);
 309 }
 310
 311 void MainWindow::relayout()
 312 {
 313         ui->live_display->setMinimumWidth(ui->live_display->height() * 16 / 9);
 314         ui->preview_display->setMinimumWidth(ui->preview_display->height() * 16 / 9);
 315 }
 316
 317 bool MainWindow::eventFilter(QObject *watched, QEvent *event)
 318 {
 319         constexpr int dead_zone_pixels = 3;  // To avoid that simple clicks get misinterpreted.
 320         constexpr int scrub_sensitivity = 100;  // pts units per pixel.
 321         constexpr int wheel_sensitivity = 100;  // pts units per degree.
 322         constexpr int camera_degrees_per_pixel = 15;  // One click of most mice.
 323
 324         unsigned stream_idx = ui->preview_display->get_stream_idx();
 325
 326         if (event->type() != QEvent::Wheel) {
 327                 last_mousewheel_camera_row = -1;
 328         }
 329
 330         if (event->type() == QEvent::MouseButtonPress) {
 331                 QMouseEvent *mouse = (QMouseEvent *)event;
 332
 333                 QTableView *destination;
 334                 ScrubType type;
 335
 336                 if (watched == ui->clip_list->viewport()) {
 337                         destination = ui->clip_list;
 338                         type = SCRUBBING_CLIP_LIST;
 339                 } else if (watched == ui->playlist->viewport()) {
 340                         destination = ui->playlist;
 341                         type = SCRUBBING_PLAYLIST;
 342                 } else {
 343                         return false;
 344                 }
 345                 int column = destination->columnAt(mouse->x());
 346                 int row = destination->rowAt(mouse->y());
 347                 if (column == -1 || row == -1) return false;
 348
 349                 if (type == SCRUBBING_CLIP_LIST) {
 350                         if (ClipList::Column(column) == ClipList::Column::IN) {
 351                                 scrub_pts_origin = cliplist_clips->clip(row)->pts_in;
 352                                 preview_single_frame(scrub_pts_origin, stream_idx, FIRST_AT_OR_AFTER);
 353                         } else if (ClipList::Column(column) == ClipList::Column::OUT) {
 354                                 scrub_pts_origin = cliplist_clips->clip(row)->pts_out;
 355                                 preview_single_frame(scrub_pts_origin, stream_idx, LAST_BEFORE);
 356                         } else {
 357                                 return false;
 358                         }
 359                 } else {
 360                         if (PlayList::Column(column) == PlayList::Column::IN) {
 361                                 scrub_pts_origin = playlist_clips->clip(row)->pts_in;
 362                                 preview_single_frame(scrub_pts_origin, stream_idx, FIRST_AT_OR_AFTER);
 363                         } else if (PlayList::Column(column) == PlayList::Column::OUT) {
 364                                 scrub_pts_origin = playlist_clips->clip(row)->pts_out;
 365                                 preview_single_frame(scrub_pts_origin, stream_idx, LAST_BEFORE);
 366                         } else {
 367                                 return false;
 368                         }
 369                 }
 370
 371                 scrubbing = true;
 372                 scrub_row = row;
 373                 scrub_column = column;
 374                 scrub_x_origin = mouse->x();
 375                 scrub_type = type;
 376         } else if (event->type() == QEvent::MouseMove) {
 377                 if (scrubbing) {
 378                         QMouseEvent *mouse = (QMouseEvent *)event;
 379                         int offset = mouse->x() - scrub_x_origin;
 380                         int adjusted_offset;
 381                         if (offset >= dead_zone_pixels) {
 382                                 adjusted_offset = offset - dead_zone_pixels;
 383                         } else if (offset < -dead_zone_pixels) {
 384                                 adjusted_offset = offset + dead_zone_pixels;
 385                         } else {
 386                                 adjusted_offset = 0;
 387                         }
 388
 389                         int64_t pts = scrub_pts_origin + adjusted_offset * scrub_sensitivity;
 390
 391                         if (scrub_type == SCRUBBING_CLIP_LIST) {
 392                                 ClipProxy clip = cliplist_clips->mutable_clip(scrub_row);
 393                                 if (scrub_column == int(ClipList::Column::IN)) {
 394                                         pts = std::max<int64_t>(pts, 0);
 395                                         pts = std::min(pts, clip->pts_out);
 396                                         clip->pts_in = pts;
 397                                         preview_single_frame(pts, stream_idx, FIRST_AT_OR_AFTER);
 398                                 } else {
 399                                         pts = std::max(pts, clip->pts_in);
 400                                         pts = std::min(pts, current_pts);
 401                                         clip->pts_out = pts;
 402                                         preview_single_frame(pts, stream_idx, LAST_BEFORE);
 403                                 }
 404                         } else {
 405                                 ClipProxy clip = playlist_clips->mutable_clip(scrub_row);
 406                                 if (scrub_column == int(PlayList::Column::IN)) {
 407                                         pts = std::max<int64_t>(pts, 0);
 408                                         pts = std::min(pts, clip->pts_out);
 409                                         clip->pts_in = pts;
 410                                         preview_single_frame(pts, clip->stream_idx, FIRST_AT_OR_AFTER);
 411                                 } else {
 412                                         pts = std::max(pts, clip->pts_in);
 413                                         pts = std::min(pts, current_pts);
 414                                         clip->pts_out = pts;
 415                                         preview_single_frame(pts, clip->stream_idx, LAST_BEFORE);
 416                                 }
 417                         }
 418
 419                         return true;  // Don't use this mouse movement for selecting things.
 420                 }
 421         } else if (event->type() == QEvent::Wheel) {
 422                 QWheelEvent *wheel = (QWheelEvent *)event;
 423
 424                 QTableView *destination;
 425                 int in_column, out_column, camera_column;
 426                 if (watched == ui->clip_list->viewport()) {
 427                         destination = ui->clip_list;
 428                         in_column = int(ClipList::Column::IN);
 429                         out_column = int(ClipList::Column::OUT);
 430                         camera_column = -1;
 431                         last_mousewheel_camera_row = -1;
 432                 } else if (watched == ui->playlist->viewport()) {
 433                         destination = ui->playlist;
 434                         in_column = int(PlayList::Column::IN);
 435                         out_column = int(PlayList::Column::OUT);
 436                         camera_column = int(PlayList::Column::CAMERA);
 437                 } else {
 438                         last_mousewheel_camera_row = -1;
 439                         return false;
 440                 }
 441                 int column = destination->columnAt(wheel->x());
 442                 int row = destination->rowAt(wheel->y());
 443                 if (column == -1 || row == -1) return false;
 444
 445                 ClipProxy clip = (watched == ui->clip_list->viewport()) ?
 446                         cliplist_clips->mutable_clip(row) : playlist_clips->mutable_clip(row);
 447                 if (watched == ui->playlist->viewport()) {
 448                         stream_idx = clip->stream_idx;
 449                 }
 450
 451                 if (column != camera_column) {
 452                         last_mousewheel_camera_row = -1;
 453                 }
 454                 if (column == in_column) {
 455                         int64_t pts = clip->pts_in + wheel->angleDelta().y() * wheel_sensitivity;
 456                         pts = std::max<int64_t>(pts, 0);
 457                         pts = std::min(pts, clip->pts_out);
 458                         clip->pts_in = pts;
 459                         preview_single_frame(pts, stream_idx, FIRST_AT_OR_AFTER);
 460                 } else if (column == out_column) {
 461                         int64_t pts = clip->pts_out + wheel->angleDelta().y() * wheel_sensitivity;
 462                         pts = std::max(pts, clip->pts_in);
 463                         pts = std::min(pts, current_pts);
 464                         clip->pts_out = pts;
 465                         preview_single_frame(pts, stream_idx, LAST_BEFORE);
 466                 } else if (column == camera_column) {
 467                         int angle_degrees = wheel->angleDelta().y();
 468                         if (last_mousewheel_camera_row == row) {
 469                                 angle_degrees += leftover_angle_degrees;
 470                         }
 471
 472                         int stream_idx = clip->stream_idx + angle_degrees / camera_degrees_per_pixel;
 473                         stream_idx = std::max(stream_idx, 0);
 474                         stream_idx = std::min(stream_idx, NUM_CAMERAS - 1);
 475                         clip->stream_idx = stream_idx;
 476
 477                         last_mousewheel_camera_row = row;
 478                         leftover_angle_degrees = angle_degrees % camera_degrees_per_pixel;
 479
 480                         // Don't update the live view, that's rarely what the operator wants.
 481                 }
 482         } else if (event->type() == QEvent::MouseButtonRelease) {
 483                 scrubbing = false;
 484         }
 485         return false;
 486 }
 487
 488 void MainWindow::preview_single_frame(int64_t pts, unsigned stream_idx, MainWindow::Rounding rounding)
 489 {
 490         if (rounding == LAST_BEFORE) {
 491                 lock_guard<mutex> lock(frame_mu);
 492                 if (frames[stream_idx].empty()) return;
 493                 auto it = lower_bound(frames[stream_idx].begin(), frames[stream_idx].end(), pts);
 494                 if (it != frames[stream_idx].end()) {
 495                         pts = *it;
 496                 }
 497         } else {
 498                 assert(rounding == FIRST_AT_OR_AFTER);
 499                 lock_guard<mutex> lock(frame_mu);
 500                 if (frames[stream_idx].empty()) return;
 501                 auto it = upper_bound(frames[stream_idx].begin(), frames[stream_idx].end(), pts - 1);
 502                 if (it != frames[stream_idx].end()) {
 503                         pts = *it;
 504                 }
 505         }
 506
 507         Clip fake_clip;
 508         fake_clip.pts_in = pts;
 509         fake_clip.pts_out = pts + 1;
 510         preview_player->play_clip(fake_clip, stream_idx);
 511 }
 512
 513 void MainWindow::playlist_selection_changed()
 514 {
 515         QItemSelectionModel *selected = ui->playlist->selectionModel();
 516         bool any_selected = selected->hasSelection();
 517         ui->playlist_duplicate_btn->setEnabled(any_selected);
 518         ui->playlist_remove_btn->setEnabled(any_selected);
 519         ui->playlist_move_up_btn->setEnabled(
 520                 any_selected && selected->selectedRows().front().row() > 0);
 521         ui->playlist_move_down_btn->setEnabled(
 522                 any_selected && selected->selectedRows().back().row() < int(playlist_clips->size()) - 1);
 523         ui->play_btn->setEnabled(!playlist_clips->empty());
 524 }