git.sesse.net Git - kdenlive/blob - src/stopmotion/stopmotion.cpp

   1 /***************************************************************************
   2                           stopmotion.cpp  -  description
   3                              -------------------
   4     begin                : Feb 28 2008
   5     copyright            : (C) 2010 by Jean-Baptiste Mardelle
   6     email                : jb@kdenlive.org
   7  ***************************************************************************/
   8
   9 /***************************************************************************
  10  *                                                                         *
  11  *   This program is free software; you can redistribute it and/or modify  *
  12  *   it under the terms of the GNU General Public License as published by  *
  13  *   the Free Software Foundation; either version 2 of the License, or     *
  14  *   (at your option) any later version.                                   *
  15  *                                                                         *
  16  ***************************************************************************/
  17
  18 #include "stopmotion.h"
  19 #ifdef USE_V4L
  20 #include "v4l/v4lcapture.h"
  21 #endif
  22 #include "slideshowclip.h"
  23 #include "profilesdialog.h"
  24 #include "mltdevicecapture.h"
  25 #include "recmonitor.h"
  26 #include "monitormanager.h"
  27 #include "ui_smconfig_ui.h"
  28 #include "kdenlivesettings.h"
  29
  30 #include <KDebug>
  31 #include <KGlobalSettings>
  32 #include <KFileDialog>
  33 #include <KStandardDirs>
  34 #include <KMessageBox>
  35 #include <kdeversion.h>
  36 #include <KNotification>
  37
  38 #include <QtConcurrentRun>
  39 #include <QInputDialog>
  40 #include <QComboBox>
  41 #include <QVBoxLayout>
  42 #include <QTimer>
  43 #include <QPainter>
  44 #include <QAction>
  45 #include <QWheelEvent>
  46 #include <QMenu>
  47
  48 MyLabel::MyLabel(QWidget* parent) :
  49     QLabel(parent)
  50 {
  51 }
  52
  53 void MyLabel::setImage(const QImage& img)
  54 {
  55     m_img = img;
  56 }
  57
  58 //virtual
  59 void MyLabel::wheelEvent(QWheelEvent* event)
  60 {
  61     if (event->delta() > 0) emit seek(true);
  62     else emit seek(false);
  63 }
  64
  65 //virtual
  66 void MyLabel::mousePressEvent(QMouseEvent*)
  67 {
  68     emit switchToLive();
  69 }
  70
  71 //virtual
  72 void MyLabel::paintEvent(QPaintEvent* event)
  73 {
  74     Q_UNUSED(event);
  75
  76     QRect r(0, 0, width(), height());
  77     QPainter p(this);
  78     p.fillRect(r, QColor(KdenliveSettings::window_background()));
  79     double aspect_ratio = (double) m_img.width() / m_img.height();
  80     int pictureHeight = height();
  81     int pictureWidth = width();
  82     int calculatedWidth = aspect_ratio * height();
  83     if (calculatedWidth > width()) pictureHeight = width() / aspect_ratio;
  84     else {
  85         int calculatedHeight = width() / aspect_ratio;
  86         if (calculatedHeight > height()) pictureWidth = height() * aspect_ratio;
  87     }
  88     p.drawImage(QRect((width() - pictureWidth) / 2, (height() - pictureHeight) / 2, pictureWidth, pictureHeight), m_img, QRect(0, 0, m_img.width(), m_img.height()));
  89     p.end();
  90 }
  91
  92
  93 StopmotionMonitor::StopmotionMonitor(MonitorManager *manager, QWidget *parent) :
  94     AbstractMonitor(Kdenlive::stopmotionMonitor, manager, parent),
  95     m_captureDevice(NULL)
  96 {
  97     createVideoSurface();
  98 }
  99
 100 StopmotionMonitor::~StopmotionMonitor()
 101 {
 102 }
 103
 104 void StopmotionMonitor::slotSwitchFullScreen()
 105 {
 106 }
 107
 108 void StopmotionMonitor::setRender(MltDeviceCapture *render)
 109 {
 110     m_captureDevice = render;
 111 }
 112
 113 AbstractRender *StopmotionMonitor::abstractRender()
 114 {
 115     return m_captureDevice;
 116 }
 117
 118 Kdenlive::MONITORID StopmotionMonitor::id() const
 119 {
 120     return Kdenlive::stopmotionMonitor;
 121 }
 122
 123
 124 void StopmotionMonitor::stop()
 125 {
 126     if (m_captureDevice) m_captureDevice->stop();
 127     emit stopCapture();
 128 }
 129
 130 void StopmotionMonitor::start()
 131 {
 132 }
 133
 134 void StopmotionMonitor::slotPlay()
 135 {
 136 }
 137
 138 void StopmotionMonitor::slotMouseSeek(int /*eventDelta*/, bool /*fast*/)
 139 {
 140 }
 141
 142 StopmotionWidget::StopmotionWidget(MonitorManager *manager, const KUrl &projectFolder, const QList<QAction *> &actions, QWidget* parent) :
 143     QDialog(parent)
 144     , Ui::Stopmotion_UI()
 145     , m_projectFolder(projectFolder)
 146     , m_captureDevice(NULL)
 147     , m_sequenceFrame(0)
 148     , m_animatedIndex(-1)
 149     , m_animate(false)
 150     , m_manager(manager)
 151     , m_monitor(new StopmotionMonitor(manager, this))
 152 {
 153     //setAttribute(Qt::WA_DeleteOnClose);
 154     //HACK: the monitor widget is hidden, it is just used to control the capturedevice from monitormanager
 155     m_monitor->setHidden(true);
 156     connect(m_monitor, SIGNAL(stopCapture()), this, SLOT(slotStopCapture()));
 157     m_manager->appendMonitor(m_monitor);
 158     QAction* analyse = new QAction(i18n("Send frames to color scopes"), this);
 159     analyse->setCheckable(true);
 160     analyse->setChecked(KdenliveSettings::analyse_stopmotion());
 161     connect(analyse, SIGNAL(triggered(bool)), this, SLOT(slotSwitchAnalyse(bool)));
 162
 163     QAction* mirror = new QAction(i18n("Mirror display"), this);
 164     mirror->setCheckable(true);
 165     //mirror->setChecked(KdenliveSettings::analyse_stopmotion());
 166     connect(mirror, SIGNAL(triggered(bool)), this, SLOT(slotSwitchMirror(bool)));
 167
 168     addActions(actions);
 169     setupUi(this);
 170     setWindowTitle(i18n("Stop Motion Capture"));
 171     setFont(KGlobalSettings::toolBarFont());
 172
 173     live_button->setIcon(KIcon("camera-photo"));
 174
 175     m_captureAction = actions.at(0);
 176     connect(m_captureAction, SIGNAL(triggered()), this, SLOT(slotCaptureFrame()));
 177     m_captureAction->setCheckable(true);
 178     m_captureAction->setChecked(false);
 179     capture_button->setDefaultAction(m_captureAction);
 180
 181     connect(actions.at(1), SIGNAL(triggered()), this, SLOT(slotSwitchLive()));
 182
 183     QAction *intervalCapture = new QAction(i18n("Interval capture"), this);
 184     intervalCapture->setIcon(KIcon("chronometer"));
 185     intervalCapture->setCheckable(true);
 186     intervalCapture->setChecked(false);
 187     capture_interval->setDefaultAction(intervalCapture);
 188
 189     preview_button->setIcon(KIcon("media-playback-start"));
 190     capture_button->setEnabled(false);
 191
 192
 193     // Build config menu
 194     QMenu* confMenu = new QMenu;
 195     m_showOverlay = actions.at(2);
 196     connect(m_showOverlay, SIGNAL(triggered(bool)), this, SLOT(slotShowOverlay(bool)));
 197     overlay_button->setDefaultAction(m_showOverlay);
 198     //confMenu->addAction(m_showOverlay);
 199
 200     m_effectIndex = KdenliveSettings::stopmotioneffect();
 201     QMenu* effectsMenu = new QMenu(i18n("Overlay effect"));
 202     QActionGroup* effectGroup = new QActionGroup(this);
 203     QAction* noEffect = new QAction(i18n("No Effect"), effectGroup);
 204     noEffect->setData(0);
 205     QAction* contrastEffect = new QAction(i18n("Contrast"), effectGroup);
 206     contrastEffect->setData(1);
 207     QAction* edgeEffect = new QAction(i18n("Edge detect"), effectGroup);
 208     edgeEffect->setData(2);
 209     QAction* brightEffect = new QAction(i18n("Brighten"), effectGroup);
 210     brightEffect->setData(3);
 211     QAction* invertEffect = new QAction(i18n("Invert"), effectGroup);
 212     invertEffect->setData(4);
 213     QAction* thresEffect = new QAction(i18n("Threshold"), effectGroup);
 214     thresEffect->setData(5);
 215
 216     effectsMenu->addAction(noEffect);
 217     effectsMenu->addAction(contrastEffect);
 218     effectsMenu->addAction(edgeEffect);
 219     effectsMenu->addAction(brightEffect);
 220     effectsMenu->addAction(invertEffect);
 221     effectsMenu->addAction(thresEffect);
 222     QList <QAction*> list = effectsMenu->actions();
 223     for (int i = 0; i < list.count(); i++) {
 224         list.at(i)->setCheckable(true);
 225         if (list.at(i)->data().toInt() == m_effectIndex) {
 226             list.at(i)->setChecked(true);
 227         }
 228     }
 229     connect(effectsMenu, SIGNAL(triggered(QAction*)), this, SLOT(slotUpdateOverlayEffect(QAction*)));
 230     confMenu->addMenu(effectsMenu);
 231
 232     QAction* showThumbs = new QAction(KIcon("image-x-generic"), i18n("Show sequence thumbnails"), this);
 233     showThumbs->setCheckable(true);
 234     showThumbs->setChecked(KdenliveSettings::showstopmotionthumbs());
 235     connect(showThumbs, SIGNAL(triggered(bool)), this, SLOT(slotShowThumbs(bool)));
 236
 237     QAction* removeCurrent = new QAction(KIcon("edit-delete"), i18n("Delete current frame"), this);
 238     removeCurrent->setShortcut(Qt::Key_Delete);
 239     connect(removeCurrent, SIGNAL(triggered()), this, SLOT(slotRemoveFrame()));
 240
 241     QAction* conf = new QAction(KIcon("configure"), i18n("Configure"), this);
 242     connect(conf, SIGNAL(triggered()), this, SLOT(slotConfigure()));
 243
 244     confMenu->addAction(showThumbs);
 245     confMenu->addAction(removeCurrent);
 246     confMenu->addAction(analyse);
 247     confMenu->addAction(mirror);
 248     confMenu->addAction(conf);
 249     config_button->setIcon(KIcon("configure"));
 250     config_button->setMenu(confMenu);
 251
 252     connect(sequence_name, SIGNAL(textChanged(QString)), this, SLOT(sequenceNameChanged(QString)));
 253     connect(sequence_name, SIGNAL(currentIndexChanged(int)), live_button, SLOT(setFocus()));
 254
 255     // Video widget holder
 256     QVBoxLayout *layout = new QVBoxLayout;
 257     layout->setContentsMargins(0, 0, 0, 0);
 258     layout->setSpacing(0);
 259     m_monitor->videoBox->setLineWidth(4);
 260     layout->addWidget(m_monitor->videoBox);
 261
 262     if (KdenliveSettings::decklink_device_found()) {
 263         // Found a BlackMagic device
 264     }
 265
 266     if (QFile::exists(KdenliveSettings::video4vdevice())) {
 267 #ifdef USE_V4L
 268         // Video 4 Linux device detection
 269         for (int i = 0; i < 10; i++) {
 270             QString path = "/dev/video" + QString::number(i);
 271             if (QFile::exists(path)) {
 272                 QStringList deviceInfo = V4lCaptureHandler::getDeviceName(path);
 273                 if (!deviceInfo.isEmpty()) {
 274                     capture_device->addItem(deviceInfo.at(0), "v4l");
 275                     capture_device->setItemData(capture_device->count() - 1, path, Qt::UserRole + 1);
 276                     capture_device->setItemData(capture_device->count() - 1, deviceInfo.at(1), Qt::UserRole + 2);
 277                     if (path == KdenliveSettings::video4vdevice()) capture_device->setCurrentIndex(capture_device->count() - 1);
 278                 }
 279             }
 280         }
 281 #endif /* USE_V4L */
 282     }
 283
 284     connect(capture_device, SIGNAL(currentIndexChanged(int)), this, SLOT(slotUpdateDeviceHandler()));
 285     /*if (m_bmCapture) {
 286         connect(m_bmCapture, SIGNAL(frameSaved(QString)), this, SLOT(slotNewThumb(QString)));
 287         connect(m_bmCapture, SIGNAL(gotFrame(QImage)), this, SIGNAL(gotFrame(QImage)));
 288     } else live_button->setEnabled(false);*/
 289
 290     m_frame_preview = new MyLabel(this);
 291     connect(m_frame_preview, SIGNAL(seek(bool)), this, SLOT(slotSeekFrame(bool)));
 292     connect(m_frame_preview, SIGNAL(switchToLive()), this, SLOT(slotSwitchLive()));
 293     layout->addWidget(m_frame_preview);
 294     m_frame_preview->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
 295     video_preview->setLayout(layout);
 296
 297     //kDebug()<<video_preview->winId();
 298
 299     QString profilePath;
 300     // Create MLT producer data
 301     if (capture_device->itemData(capture_device->currentIndex()) == "v4l") {
 302         // Capture using a video4linux device
 303         profilePath = KStandardDirs::locateLocal("appdata", "profiles/video4linux");
 304     }
 305     else {
 306         // Decklink capture
 307         profilePath = KdenliveSettings::current_profile();
 308     }
 309
 310     m_captureDevice = new MltDeviceCapture(profilePath, m_monitor->videoSurface, this);
 311     m_captureDevice->sendFrameForAnalysis = KdenliveSettings::analyse_stopmotion();
 312     m_monitor->setRender(m_captureDevice);
 313     connect(m_captureDevice, SIGNAL(frameSaved(QString)), this, SLOT(slotNewThumb(QString)));
 314
 315     live_button->setChecked(false);
 316     button_addsequence->setEnabled(false);
 317     connect(live_button, SIGNAL(toggled(bool)), this, SLOT(slotLive(bool)));
 318     connect(button_addsequence, SIGNAL(clicked(bool)), this, SLOT(slotAddSequence()));
 319     connect(preview_button, SIGNAL(clicked(bool)), this, SLOT(slotPlayPreview(bool)));
 320     connect(frame_list, SIGNAL(currentRowChanged(int)), this, SLOT(slotShowSelectedFrame()));
 321     connect(frame_list, SIGNAL(itemClicked(QListWidgetItem*)), this, SLOT(slotShowSelectedFrame()));
 322     connect(this, SIGNAL(doCreateThumbs(QImage,int)), this, SLOT(slotCreateThumbs(QImage,int)));
 323
 324     frame_list->addAction(removeCurrent);
 325     frame_list->setContextMenuPolicy(Qt::ActionsContextMenu);
 326     frame_list->setHidden(!KdenliveSettings::showstopmotionthumbs());
 327     parseExistingSequences();
 328     QTimer::singleShot(500, this, SLOT(slotLive()));
 329     connect(&m_intervalTimer, SIGNAL(timeout()), this, SLOT(slotCaptureFrame()));
 330     m_intervalTimer.setSingleShot(true);
 331     m_intervalTimer.setInterval(KdenliveSettings::captureinterval() * 1000);
 332 }
 333
 334 StopmotionWidget::~StopmotionWidget()
 335 {
 336     m_manager->removeMonitor(m_monitor);
 337     if (m_captureDevice) {
 338         m_captureDevice->stop();
 339         delete m_captureDevice;
 340         m_captureDevice = NULL;
 341     }
 342
 343     delete m_monitor;
 344 }
 345
 346 void StopmotionWidget::slotUpdateOverlayEffect(QAction* act)
 347 {
 348     if (act) m_effectIndex = act->data().toInt();
 349     KdenliveSettings::setStopmotioneffect(m_effectIndex);
 350     slotUpdateOverlay();
 351 }
 352
 353 void StopmotionWidget::closeEvent(QCloseEvent* e)
 354 {
 355     slotLive(false);
 356     QDialog::closeEvent(e);
 357 }
 358
 359 void StopmotionWidget::slotConfigure()
 360 {
 361     QDialog d;
 362     Ui::SmConfig_UI ui;
 363     ui.setupUi(&d);
 364     d.setWindowTitle(i18n("Configure Stop Motion"));
 365     ui.sm_interval->setValue(KdenliveSettings::captureinterval());
 366     ui.sm_interval->setSuffix(ki18np(" second", " seconds"));
 367     ui.sm_notifytime->setSuffix(ki18np(" second", " seconds"));
 368     ui.sm_notifytime->setValue(KdenliveSettings::sm_notifytime());
 369     connect(ui.sm_prenotify, SIGNAL(toggled(bool)), ui.sm_notifytime, SLOT(setEnabled(bool)));
 370     ui.sm_prenotify->setChecked(KdenliveSettings::sm_prenotify());
 371     ui.sm_loop->setChecked(KdenliveSettings::sm_loop());
 372     ui.sm_framesplayback->setValue(KdenliveSettings::sm_framesplayback());
 373
 374     if (d.exec() == QDialog::Accepted) {
 375         KdenliveSettings::setSm_loop(ui.sm_loop->isChecked());
 376         KdenliveSettings::setCaptureinterval(ui.sm_interval->value());
 377         KdenliveSettings::setSm_framesplayback(ui.sm_framesplayback->value());
 378         KdenliveSettings::setSm_notifytime(ui.sm_notifytime->value());
 379         KdenliveSettings::setSm_prenotify(ui.sm_prenotify->isChecked());
 380         m_intervalTimer.setInterval(KdenliveSettings::captureinterval() * 1000);
 381     }
 382 }
 383
 384 void StopmotionWidget::slotShowThumbs(bool show)
 385 {
 386     KdenliveSettings::setShowstopmotionthumbs(show);
 387     if (show) {
 388         frame_list->clear();
 389         sequenceNameChanged(sequence_name->currentText());
 390     } else {
 391         m_filesList.clear();
 392         frame_list->clear();
 393     }
 394     frame_list->setHidden(!show);
 395 }
 396
 397
 398 void StopmotionWidget::slotUpdateDeviceHandler()
 399 {
 400     slotLive(false);
 401     delete m_captureDevice;
 402     m_captureDevice = NULL;
 403     /*QString data = capture_device->itemData(capture_device->currentIndex()).toString();
 404     slotLive(false);
 405     if (m_bmCapture) {
 406         delete m_bmCapture;
 407     }
 408     m_layout->removeWidget(m_frame_preview);
 409     if (data == "v4l") {
 410 #ifdef USE_V4L
 411         m_bmCapture = new V4lCaptureHandler(m_layout);
 412         m_bmCapture->setDevice(capture_device->itemData(capture_device->currentIndex(), Qt::UserRole + 1).toString(), capture_device->itemData(capture_device->currentIndex(), Qt::UserRole + 2).toString());
 413 #endif
 414     } else {
 415         m_bmCapture = new BmdCaptureHandler(m_layout);
 416         if (m_bmCapture) connect(m_bmCapture, SIGNAL(gotMessage(QString)), this, SLOT(slotGotHDMIMessage(QString)));
 417     }
 418     live_button->setEnabled(m_bmCapture != NULL);
 419     m_layout->addWidget(m_frame_preview);*/
 420 }
 421
 422 void StopmotionWidget::slotGotHDMIMessage(const QString& message)
 423 {
 424     log_box->insertItem(0, message);
 425 }
 426
 427 void StopmotionWidget::parseExistingSequences()
 428 {
 429     sequence_name->clear();
 430     sequence_name->addItem(QString());
 431     QDir dir(m_projectFolder.path());
 432     QStringList filters;
 433     filters << "*_0000.png";
 434     //dir.setNameFilters(filters);
 435     QStringList sequences = dir.entryList(filters, QDir::Files, QDir::Name);
 436     //kDebug()<<"PF: "<<<<", sm: "<<sequences;
 437     foreach(const QString &sequencename, sequences) {
 438         sequence_name->addItem(sequencename.section('_', 0, -2));
 439     }
 440 }
 441
 442 void StopmotionWidget::slotSwitchLive()
 443 {
 444     setUpdatesEnabled(false);
 445     slotLive(!live_button->isChecked());
 446     setUpdatesEnabled(true);
 447 }
 448
 449 void StopmotionWidget::slotStopCapture()
 450 {
 451     slotLive(false);
 452 }
 453
 454 void StopmotionWidget::slotLive(bool isOn)
 455 {
 456     live_button->blockSignals(true);
 457     capture_button->setEnabled(false);
 458     if (isOn) {
 459         m_frame_preview->setHidden(true);
 460         m_monitor->videoBox->setHidden(false);
 461         QLocale locale;
 462
 463         MltVideoProfile profile;
 464         QString resource;
 465         QString service;
 466         QString profilePath;
 467         // Create MLT producer data
 468         if (capture_device->itemData(capture_device->currentIndex()) == "v4l") {
 469             // Capture using a video4linux device
 470             profilePath = KStandardDirs::locateLocal("appdata", "profiles/video4linux");
 471             profile = ProfilesDialog::getVideoProfile(profilePath);
 472             service = "avformat-novalidate";
 473             QString devicePath = capture_device->itemData(capture_device->currentIndex(), Qt::UserRole + 1).toString();
 474             resource = QString("video4linux2:%1?width:%2&amp;height:%3&amp;frame_rate:%4").arg(devicePath).arg(profile.width).arg(profile.height).arg((double) profile.frame_rate_num / profile.frame_rate_den);
 475         }
 476         else {
 477             // Decklink capture
 478             profilePath = KdenliveSettings::current_profile();
 479             profile = ProfilesDialog::getVideoProfile(profilePath);
 480             service = "decklink";
 481             resource = capture_device->itemData(capture_device->currentIndex(), Qt::UserRole + 1).toString();
 482         }
 483
 484         if (m_captureDevice == NULL) {
 485             m_captureDevice = new MltDeviceCapture(profilePath, m_monitor->videoSurface, this);
 486             m_captureDevice->sendFrameForAnalysis = KdenliveSettings::analyse_stopmotion();
 487             m_monitor->setRender(m_captureDevice);
 488             connect(m_captureDevice, SIGNAL(frameSaved(QString)), this, SLOT(slotNewThumb(QString)));
 489         }
 490
 491         m_manager->activateMonitor(Kdenlive::stopmotionMonitor);
 492         QString producer = createProducer(profile, service, resource);
 493         if (m_captureDevice->slotStartPreview(producer, true)) {
 494             if (m_showOverlay->isChecked()) {
 495                 reloadOverlay();
 496                 slotUpdateOverlay();
 497             }
 498             capture_button->setEnabled(true);
 499             live_button->setChecked(true);
 500             log_box->insertItem(-1, i18n("Playing %1x%2 (%3 fps)", profile.width, profile.height, locale.toString((double)profile.frame_rate_num/profile.frame_rate_den).rightJustified(2, '0')));
 501             log_box->setCurrentIndex(0);
 502         }
 503         else {
 504             kDebug()<<"// problem starting stopmo";
 505             log_box->insertItem(-1, i18n("Failed to start device"));
 506             log_box->setCurrentIndex(0);
 507         }
 508     }
 509     else {
 510         m_frame_preview->setHidden(false);
 511         live_button->setChecked(false);
 512         if (m_captureDevice) {
 513             m_captureDevice->stop();
 514             m_monitor->videoBox->setHidden(true);
 515             log_box->insertItem(-1, i18n("Stopped"));
 516             log_box->setCurrentIndex(0);
 517             //delete m_captureDevice;
 518             //m_captureDevice = NULL;
 519         }
 520     }
 521
 522     /*
 523     if (isOn && m_bmCapture) {
 524         //m_frame_preview->setImage(QImage());
 525         m_frame_preview->setHidden(true);
 526         m_bmCapture->startPreview(KdenliveSettings::hdmi_capturedevice(), KdenliveSettings::hdmi_capturemode(), false);
 527         capture_button->setEnabled(true);
 528         live_button->setChecked(true);
 529     } else {
 530         if (m_bmCapture) m_bmCapture->stopPreview();
 531         m_frame_preview->setHidden(false);
 532         capture_button->setEnabled(false);
 533         live_button->setChecked(false);
 534     }*/
 535     live_button->blockSignals(false);
 536 }
 537
 538 void StopmotionWidget::slotShowOverlay(bool isOn)
 539 {
 540     if (isOn) {
 541         // Overlay last frame of the sequence
 542         reloadOverlay();
 543         slotUpdateOverlay();
 544     }
 545     else {
 546         // Remove overlay
 547         m_captureDevice->setOverlay(QString());
 548     }
 549 }
 550
 551 void StopmotionWidget::reloadOverlay()
 552 {
 553     QString path = getPathForFrame(m_sequenceFrame - 1);
 554     if (!QFile::exists(path)) {
 555         log_box->insertItem(-1, i18n("No previous frame found"));
 556         log_box->setCurrentIndex(0);
 557         return;
 558     }
 559     m_captureDevice->setOverlay(path);
 560 }
 561
 562 void StopmotionWidget::slotUpdateOverlay()
 563 {
 564     if (m_captureDevice == NULL) return;
 565
 566     QString tag;
 567     QStringList params;
 568
 569     switch (m_effectIndex) {
 570     case 1:
 571         tag = "frei0r.contrast0r";
 572         params << "Contrast=1.2";
 573         break;
 574     case 2:
 575         tag = "charcoal";
 576         params << "x_scatter=4" << "y_scatter=4" << "scale=1" << "mix=0";
 577         break;
 578     case 3:
 579         tag = "frei0r.brightness";
 580         params << "Brightness=0.7";
 581         break;
 582     case 4:
 583         tag = "invert";
 584         break;
 585     case 5:
 586         tag = "threshold";
 587         params << "midpoint=125";
 588         break;
 589     default:
 590         break;
 591
 592     }
 593     m_captureDevice->setOverlayEffect(tag, params);
 594 }
 595
 596 void StopmotionWidget::sequenceNameChanged(const QString& name)
 597 {
 598     // Get rid of frames from previous sequence
 599     disconnect(this, SIGNAL(doCreateThumbs(QImage,int)), this, SLOT(slotCreateThumbs(QImage,int)));
 600     m_filesList.clear();
 601     m_future.waitForFinished();
 602     frame_list->clear();
 603     if (name.isEmpty()) {
 604         button_addsequence->setEnabled(false);
 605     } else {
 606         // Check if we are editing an existing sequence
 607         QString pattern = SlideshowClip::selectedPath(getPathForFrame(0, sequence_name->currentText()), false, QString(), &m_filesList);
 608         m_sequenceFrame = m_filesList.isEmpty() ? 0 : SlideshowClip::getFrameNumberFromPath(m_filesList.last()) + 1;
 609         if (!m_filesList.isEmpty()) {
 610             m_sequenceName = sequence_name->currentText();
 611             connect(this, SIGNAL(doCreateThumbs(QImage,int)), this, SLOT(slotCreateThumbs(QImage,int)));
 612             m_future = QtConcurrent::run(this, &StopmotionWidget::slotPrepareThumbs);
 613             button_addsequence->setEnabled(true);
 614         } else {
 615             // new sequence
 616             connect(this, SIGNAL(doCreateThumbs(QImage,int)), this, SLOT(slotCreateThumbs(QImage,int)));
 617             button_addsequence->setEnabled(false);
 618         }
 619         capture_button->setEnabled(live_button->isChecked());
 620     }
 621 }
 622
 623 void StopmotionWidget::slotCaptureFrame()
 624 {
 625     if (m_captureDevice == NULL) return;
 626     if (sequence_name->currentText().isEmpty()) {
 627         QString seqName = QInputDialog::getText(this, i18n("Create New Sequence"), i18n("Enter sequence name"));
 628         if (seqName.isEmpty()) {
 629             m_captureAction->setChecked(false);
 630             return;
 631         }
 632         sequence_name->blockSignals(true);
 633         sequence_name->setItemText(sequence_name->currentIndex(), seqName);
 634         sequence_name->blockSignals(false);
 635     }
 636     if (m_sequenceName != sequence_name->currentText()) {
 637         m_sequenceName = sequence_name->currentText();
 638         m_sequenceFrame = 0;
 639     }
 640     //capture_button->setEnabled(false);
 641     if (m_intervalTimer.isActive()) {
 642         // stop interval capture
 643         m_intervalTimer.stop();
 644         return;
 645     }
 646     QString currentPath = getPathForFrame(m_sequenceFrame);
 647     m_captureDevice->captureFrame(currentPath);
 648     KNotification::event("FrameCaptured", i18n("Frame Captured"), QPixmap(), this);
 649     m_sequenceFrame++;
 650     button_addsequence->setEnabled(true);
 651     if (capture_interval->isChecked()) {
 652         if (KdenliveSettings::sm_prenotify()) QTimer::singleShot((KdenliveSettings::captureinterval() - KdenliveSettings::sm_notifytime()) * 1000, this, SLOT(slotPreNotify()));
 653         m_intervalTimer.start();
 654     }
 655     else m_captureAction->setChecked(false);
 656 }
 657
 658 void StopmotionWidget::slotPreNotify()
 659 {
 660     if (m_captureAction->isChecked()) KNotification::event("ReadyToCapture", i18n("Going to Capture Frame"), QPixmap(), this);
 661 }
 662
 663
 664 void StopmotionWidget::slotNewThumb(const QString &path)
 665 {
 666     if (!KdenliveSettings::showstopmotionthumbs()) return;
 667     m_filesList.append(path);
 668     if (m_showOverlay->isChecked()) reloadOverlay();
 669     if (!m_future.isRunning()) m_future = QtConcurrent::run(this, &StopmotionWidget::slotPrepareThumbs);
 670
 671 }
 672
 673 void StopmotionWidget::slotPrepareThumbs()
 674 {
 675     if (m_filesList.isEmpty()) return;
 676     QString path = m_filesList.takeFirst();
 677     emit doCreateThumbs(QImage(path), SlideshowClip::getFrameNumberFromPath(path));
 678
 679 }
 680
 681 void StopmotionWidget::slotCreateThumbs(const QImage &img, int ix)
 682 {
 683     if (img.isNull()) {
 684         m_future = QtConcurrent::run(this, &StopmotionWidget::slotPrepareThumbs);
 685         return;
 686     }
 687     int height = 90;
 688     int width = height * img.width() / img.height();
 689     frame_list->setIconSize(QSize(width, height));
 690     QPixmap pix = QPixmap::fromImage(img).scaled(width, height);
 691     QString nb = QString::number(ix);
 692     QPainter p(&pix);
 693     QFontInfo finfo(font());
 694     p.fillRect(0, 0, finfo.pixelSize() * nb.count() + 6, finfo.pixelSize() + 6, QColor(80, 80, 80, 150));
 695     p.setPen(Qt::white);
 696     p.drawText(QPoint(3, finfo.pixelSize() + 3), nb);
 697     p.end();
 698     QIcon icon(pix);
 699     QListWidgetItem* item = new QListWidgetItem(icon, QString(), frame_list);
 700     item->setToolTip(getPathForFrame(ix, sequence_name->currentText()));
 701     item->setData(Qt::UserRole, ix);
 702     frame_list->blockSignals(true);
 703     frame_list->setCurrentItem(item);
 704     frame_list->blockSignals(false);
 705     m_future = QtConcurrent::run(this, &StopmotionWidget::slotPrepareThumbs);
 706 }
 707
 708 QString StopmotionWidget::getPathForFrame(int ix, QString seqName)
 709 {
 710     if (seqName.isEmpty()) seqName = m_sequenceName;
 711     return m_projectFolder.path(KUrl::AddTrailingSlash) + seqName + '_' + QString::number(ix).rightJustified(4, '0', false) + ".png";
 712 }
 713
 714 void StopmotionWidget::slotShowFrame(const QString& path)
 715 {
 716     //slotLive(false);
 717     QImage img(path);
 718     capture_button->setEnabled(false);
 719     slotLive(false);
 720     if (!img.isNull()) {
 721         m_frame_preview->setImage(img);
 722         m_frame_preview->setHidden(false);
 723         m_frame_preview->update();
 724     }
 725 }
 726
 727 void StopmotionWidget::slotShowSelectedFrame()
 728 {
 729     QListWidgetItem* item = frame_list->currentItem();
 730     if (item) {
 731         //int ix = item->data(Qt::UserRole).toInt();;
 732         slotShowFrame(item->toolTip());
 733     }
 734 }
 735
 736 void StopmotionWidget::slotAddSequence()
 737 {
 738     emit addOrUpdateSequence(getPathForFrame(0));
 739 }
 740
 741 void StopmotionWidget::slotPlayPreview(bool animate)
 742 {
 743     m_animate = animate;
 744     if (!animate) {
 745         // stop animation
 746         m_animationList.clear();
 747         return;
 748     }
 749     if (KdenliveSettings::showstopmotionthumbs()) {
 750         if (KdenliveSettings::sm_framesplayback() == 0) frame_list->setCurrentRow(0);
 751         else frame_list->setCurrentRow(frame_list->count() - KdenliveSettings::sm_framesplayback());
 752         QTimer::singleShot(200, this, SLOT(slotAnimate()));
 753     } else {
 754         SlideshowClip::selectedPath(getPathForFrame(0, sequence_name->currentText()), false, QString(), &m_animationList);
 755         if (KdenliveSettings::sm_framesplayback() > 0) {
 756             // only play the last x frames
 757             while (m_animationList.count() > KdenliveSettings::sm_framesplayback() + 1) {
 758                 m_animationList.removeFirst();
 759             }
 760         }
 761         m_animatedIndex = 0;
 762         slotAnimate();
 763     }
 764 }
 765
 766 void StopmotionWidget::slotAnimate()
 767 {
 768     if (m_animate) {
 769         if (KdenliveSettings::showstopmotionthumbs()) {
 770             int newRow = frame_list->currentRow() + 1;
 771             if (KdenliveSettings::sm_loop() || newRow < frame_list->count()) {
 772                 if (newRow >= frame_list->count()) {
 773                     if (KdenliveSettings::sm_framesplayback() == 0) newRow = 0;
 774                     else {
 775                         // seek to correct frame
 776                         newRow = frame_list->count() - KdenliveSettings::sm_framesplayback();
 777                     }
 778                 }
 779                 frame_list->setCurrentRow(newRow);
 780                 QTimer::singleShot(100, this, SLOT(slotAnimate()));
 781                 return;
 782             }
 783         } else {
 784             if (m_animatedIndex >= m_animationList.count()) {
 785                 if (KdenliveSettings::sm_loop()) m_animatedIndex = 0;
 786                 else m_animatedIndex = -1;
 787             }
 788             if (m_animatedIndex > -1) {
 789                 slotShowFrame(m_animationList.at(m_animatedIndex));
 790                 m_animatedIndex++;
 791                 QTimer::singleShot(100, this, SLOT(slotAnimate()));
 792                 return;
 793             }
 794         }
 795     }
 796     m_animate = false;
 797     preview_button->setChecked(false);
 798
 799 }
 800
 801 QListWidgetItem* StopmotionWidget::getFrameFromIndex(int ix)
 802 {
 803     QListWidgetItem* item = NULL;
 804     int pos = ix;
 805     if (ix >= frame_list->count()) {
 806         pos = frame_list->count() - 1;
 807     }
 808     if (ix < 0) pos = 0;
 809     item = frame_list->item(pos);
 810
 811     int value = item->data(Qt::UserRole).toInt();
 812     if (value == ix) return item;
 813     else if (value < ix) {
 814         pos++;
 815         while (pos < frame_list->count()) {
 816             item = frame_list->item(pos);
 817             value = item->data(Qt::UserRole).toInt();
 818             if (value == ix) return item;
 819             pos++;
 820         }
 821     } else {
 822         pos --;
 823         while (pos >= 0) {
 824             item = frame_list->item(pos);
 825             value = item->data(Qt::UserRole).toInt();
 826             if (value == ix) return item;
 827             pos --;
 828         }
 829     }
 830     return NULL;
 831 }
 832
 833
 834 void StopmotionWidget::selectFrame(int ix)
 835 {
 836     frame_list->blockSignals(true);
 837     QListWidgetItem* item = getFrameFromIndex(ix);
 838     if (!item) return;
 839     frame_list->setCurrentItem(item);
 840     frame_list->blockSignals(false);
 841 }
 842
 843 void StopmotionWidget::slotSeekFrame(bool forward)
 844 {
 845     int ix = frame_list->currentRow();
 846     if (forward) {
 847         if (ix < frame_list->count() - 1) frame_list->setCurrentRow(ix + 1);
 848     } else if (ix > 0) frame_list->setCurrentRow(ix - 1);
 849 }
 850
 851 void StopmotionWidget::slotRemoveFrame()
 852 {
 853     if (frame_list->currentItem() == NULL) return;
 854     QString path = frame_list->currentItem()->toolTip();
 855     if (KMessageBox::questionYesNo(this, i18n("Delete frame %1 from disk?", path), i18n("Delete Frame")) != KMessageBox::Yes) return;
 856     QFile f(path);
 857     if (f.remove()) {
 858         QListWidgetItem* item = frame_list->takeItem(frame_list->currentRow());
 859         int ix = item->data(Qt::UserRole).toInt();
 860         if (ix == m_sequenceFrame - 1) {
 861             // We are removing the last frame, update counter
 862             QListWidgetItem* item2 = frame_list->item(frame_list->count() - 1);
 863             if (item2) m_sequenceFrame = item2->data(Qt::UserRole).toInt() + 1;
 864         }
 865         delete item;
 866     }
 867 }
 868
 869 void StopmotionWidget::slotSwitchAnalyse(bool isOn)
 870 {
 871     KdenliveSettings::setAnalyse_stopmotion(isOn);
 872     if (m_captureDevice) m_captureDevice->sendFrameForAnalysis = isOn;
 873 }
 874
 875 void StopmotionWidget::slotSwitchMirror(bool isOn)
 876 {
 877     //KdenliveSettings::setAnalyse_stopmotion(isOn);
 878     if (m_captureDevice) m_captureDevice->mirror(isOn);
 879 }
 880
 881
 882 const QString StopmotionWidget::createProducer(MltVideoProfile profile, const QString &service, const QString &resource)
 883 {
 884     Q_UNUSED(profile)
 885
 886     QString playlist = "<mlt title=\"capture\"><producer id=\"producer0\" in=\"0\" out=\"99999\"><property name=\"mlt_type\">producer</property><property name=\"length\">100000</property><property name=\"eof\">pause</property><property name=\"resource\">" + resource + "</property><property name=\"mlt_service\">" + service + "</property></producer>";
 887
 888     // overlay track
 889     playlist.append("<playlist id=\"playlist0\"></playlist>");
 890
 891     // video4linux track
 892     playlist.append("<playlist id=\"playlist1\"><entry producer=\"producer0\" in=\"0\" out=\"99999\"/></playlist>");
 893
 894     playlist.append("<tractor id=\"tractor0\" title=\"video0\" global_feed=\"1\" in=\"0\" out=\"99999\">");
 895     playlist.append("<track producer=\"playlist0\"/>");
 896     playlist.append("<track producer=\"playlist1\"/>");
 897     playlist.append("</tractor></mlt>");
 898
 899
 900     return playlist;
 901 }
 902
 903
 904