diff --git a/CMakeLists.txt b/CMakeLists.txt
index 78ef6c13d..af10151bf 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,129 +1,128 @@
 project(Kdenlive)
 
 # An odd patch version number means development version, while an even one means
 # stable release. An additional number can be used for bugfix-only releases.
 
 # KDE Application Version, managed by release script
 set (KDE_APPLICATIONS_VERSION_MAJOR "17")
 set (KDE_APPLICATIONS_VERSION_MINOR "07")
 set (KDE_APPLICATIONS_VERSION_MICRO "70")
 
 set(KDENLIVE_VERSION ${KDE_APPLICATIONS_VERSION_MAJOR}.${KDE_APPLICATIONS_VERSION_MINOR}.${KDE_APPLICATIONS_VERSION_MICRO})
 cmake_minimum_required(VERSION 3.0)
 if(POLICY CMP0063)
   cmake_policy(SET CMP0063 NEW)
 endif()
 if (POLICY CMP0053)
     cmake_policy(SET CMP0053 NEW)
 endif()
 # Minimum versions of main dependencies.
 set(MLT_MIN_MAJOR_VERSION 6)
 set(MLT_MIN_MINOR_VERSION 4)
 set(MLT_MIN_PATCH_VERSION 0)
 set(MLT_MIN_VERSION ${MLT_MIN_MAJOR_VERSION}.${MLT_MIN_MINOR_VERSION}.${MLT_MIN_PATCH_VERSION})
 
 set(QT_MIN_VERSION 5.6.0)
 
 find_package(ECM 5.18.0 REQUIRED CONFIG)
 set(CMAKE_MODULE_PATH ${ECM_MODULE_PATH} ${CMAKE_SOURCE_DIR}/cmake/modules)
 include(KDECompilerSettings NO_POLICY_SCOPE)
 include(FeatureSummary)
 include(ECMInstallIcons)
 include(GenerateExportHeader)
 include(KDEInstallDirs)
 include(KDECMakeSettings)
 include(ECMOptionalAddSubdirectory)
 include(ECMMarkNonGuiExecutable)
 include(ECMAddAppIcon)
 include(ECMQtDeclareLoggingCategory)
 
 add_definitions(-DQT_NO_CAST_TO_ASCII)
 add_definitions(-DQT_NO_URL_CAST_FROM_STRING)
 add_definitions(-DTRANSLATION_DOMAIN=\"kdenlive\")
 
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${ECM_MODULE_PATH})
 SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${Qt5Widgets_EXECUTABLE_COMPILE_FLAGS}")
-SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC")
 # To be switched on when releasing.
 option(RELEASE_BUILD "Remove Git revision from program version (use for stable releases)" ON)
 
 # Get current version.
 set(KDENLIVE_VERSION_STRING "${KDENLIVE_VERSION}")
 if(NOT RELEASE_BUILD AND EXISTS ${CMAKE_SOURCE_DIR}/.git)
   # Probably a Git workspace; determine the revision.
   find_package(Git QUIET)
   if(GIT_FOUND)
     exec_program(${GIT_EXECUTABLE}
       ${CMAKE_SOURCE_DIR}
 	ARGS "log -n 1 --pretty=format:\"%h\""
       OUTPUT_VARIABLE KDENLIVE_GIT_REVISION
       RETURN_VALUE TAG_RESULT
     )
 
     # git log failed; maybe the repository was checked with depth=1.
     if(NOT ${TAG_RESULT} EQUAL 0)
       exec_program(${GIT_EXECUTABLE}
         ${CMAKE_SOURCE_DIR}
         ARGS "describe --always"
         OUTPUT_VARIABLE KDENLIVE_GIT_REVISION
       )
     endif()
     message(STATUS "Kdenlive Git revision: ${KDENLIVE_GIT_REVISION}")
     set(KDENLIVE_VERSION_STRING "${KDENLIVE_VERSION} (rev. ${KDENLIVE_GIT_REVISION})")
   else()
     message(STATUS "Kdenlive Git revision could not be determined")
   endif()
 endif()
 
 include(CheckIncludeFiles)
 check_include_files(malloc.h HAVE_MALLOC_H)
 check_include_files(pthread.h HAVE_PTHREAD_H)
 
 find_package(Qt5 REQUIRED COMPONENTS Core DBus Widgets Script Svg Quick )
 find_package(Qt5 OPTIONAL_COMPONENTS WebKitWidgets QUIET)
 
 find_package(KF5 5.23.0 OPTIONAL_COMPONENTS XmlGui QUIET)
 if (KF5XmlGui_FOUND)
   message(STATUS "Found KF5 >= 5.23.0 enabling icon coloring")
 else()
   message(STATUS "KF5 < 5.23.0 Disable icon coloring")
   set(KF5_ICON_COMPATIBILITY TRUE)
 endif()
 
 find_package(KF5 REQUIRED COMPONENTS Archive Bookmarks CoreAddons Config ConfigWidgets 
                             DBusAddons KIO WidgetsAddons NotifyConfig NewStuff XmlGui Notifications GuiAddons TextWidgets IconThemes Crash
                  OPTIONAL_COMPONENTS DocTools FileMetaData)
 
 if (KF5FileMetaData_FOUND)
   message(STATUS "Found KF5 FileMetadata to extract file metadata")
   set(KF5_FILEMETADATA TRUE)
 else()
   message(STATUS "KF5 FileMetadata not found, file metadata will not be available")
 endif()
 
 # Search MLT package.
 find_package(MLT ${MLT_MIN_VERSION} REQUIRED)
 set_package_properties(MLT PROPERTIES 
                 DESCRIPTION "Multimedia framework and video playout server for TV broadcasting"
                 URL "http://mltframework.org"
                 TYPE RUNTIME
                 PURPOSE "Required to do video processing")
 
 set(MLT_PREFIX ${MLT_ROOT_DIR})
 
 add_subdirectory(data)
 if(KF5DocTools_FOUND)
     add_subdirectory(doc)
 endif()
 #add_subdirectory(plugins)
 ecm_optional_add_subdirectory(po)
 add_subdirectory(renderer)
 add_subdirectory(src)
 add_subdirectory(thumbnailer)
 #add_subdirectory(testingArea)
 
 
 install( FILES kdenlive.categories DESTINATION ${KDE_INSTALL_CONFDIR} )
 
 configure_file(config-kdenlive.h.cmake config-kdenlive.h @ONLY)
 feature_summary(WHAT ALL INCLUDE_QUIET_PACKAGES FATAL_ON_MISSING_REQUIRED_PACKAGES)
diff --git a/cmake/modules/FindMLT.cmake b/cmake/modules/FindMLT.cmake
index 25c47bb64..22c5ba83a 100644
--- a/cmake/modules/FindMLT.cmake
+++ b/cmake/modules/FindMLT.cmake
@@ -1,64 +1,64 @@
 # Find the MLT includes and libraries
 #
 # Copyright (c) 2007-2012 Jean-Baptiste Mardell (jb@kdenlive.org)
 # Copyright (c) 2012 Alberto Villa <avilla@FreeBSD.org>
 #
 # Redistribution and use is allowed according to the terms of the BSD license.
 
 find_package(PkgConfig QUIET)
-pkg_check_modules(PC_MLT QUIET mlt++)
+pkg_check_modules(PC_MLT mlt++)
 
 find_path(MLT_INCLUDE_DIR
   NAMES framework/mlt.h
   HINTS
     ${PC_MLT_INCLUDEDIR}
     ${PC_MLT_PREFIX}/include
   PATHS
     /usr/local/include
     /usr/include
   PATH_SUFFIXES mlt
 )
 
 find_library(MLT_LIBRARIES
   NAMES mlt
   HINTS
     ${PC_MLT_LIBDIR}
     ${PC_MLT_PREFIX}/lib
   PATHS
     /usr/local/lib
     /usr/lib
 )
 
 find_path(MLTPP_INCLUDE_DIR
   NAMES mlt++/Mlt.h
   HINTS
     ${PC_MLT_INCLUDEDIR}
     ${PC_MLT_PREFIX}/include
   PATHS
     /usr/local/include
     /usr/include
 )
 
 find_library(MLTPP_LIBRARIES
   NAMES mlt++
   HINTS
     ${PC_MLT_LIBDIR}
     ${PC_MLT_PREFIX}/lib
   PATHS
     /usr/local/lib
     /usr/lib
 )
 
 get_filename_component(MLT_ROOT_DIR ${MLTPP_INCLUDE_DIR} PATH)
 
 if(PC_MLT_VERSION)
   set(MLT_VERSION_STRING ${PC_MLT_VERSION})
 endif()
 
 include(FindPackageHandleStandardArgs)
 find_package_handle_standard_args(MLT
   REQUIRED_VARS MLT_LIBRARIES MLTPP_LIBRARIES MLT_INCLUDE_DIR MLTPP_INCLUDE_DIR
   VERSION_VAR MLT_VERSION_STRING
 )
 
 mark_as_advanced(MLT_INCLUDE_DIR MLT_LIBRARIES MLTPP_INCLUDE_DIR MLTPP_LIBRARIES)
diff --git a/src/dialogs/wizard.cpp b/src/dialogs/wizard.cpp
index 01a1927f3..556dfcc38 100644
--- a/src/dialogs/wizard.cpp
+++ b/src/dialogs/wizard.cpp
@@ -1,862 +1,864 @@
 /***************************************************************************
  *   Copyright (C) 2016 by Jean-Baptiste Mardelle (jb@kdenlive.org)        *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU General Public License as published by  *
  *   the Free Software Foundation; either version 2 of the License, or     *
  *   (at your option) any later version.                                   *
  *                                                                         *
  *   This program is distributed in the hope that it will be useful,       *
  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  *   GNU General Public License for more details.                          *
  *                                                                         *
  *   You should have received a copy of the GNU General Public License     *
  *   along with this program; if not, write to the                         *
  *   Free Software Foundation, Inc.,                                       *
  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
  ***************************************************************************/
 
 #include "wizard.h"
 #include "profilesdialog.h"
 #include "utils/KoIconUtils.h"
 #include "kdenlivesettings.h"
 #include "renderer.h"
 #include "utils/thememanager.h"
 #ifdef USE_V4L
 #include "capture/v4lcapture.h"
 #endif
 #include <config-kdenlive.h>
 
 #include <mlt++/Mlt.h>
 #include <framework/mlt_version.h>
 
 #include <klocalizedstring.h>
 #include <KProcess>
 #include <KRun>
 #include <KMessageWidget>
 
 #include <QLabel>
 #include <QMimeType>
 #include <QFile>
 #include <QXmlStreamWriter>
 #include <QTimer>
 #include <QStandardPaths>
 #include <QMimeDatabase>
 #include "kdenlive_debug.h"
 
 // Recommended MLT version
 const int mltVersionMajor = MLT_MIN_MAJOR_VERSION;
 const int mltVersionMinor = MLT_MIN_MINOR_VERSION;
 const int mltVersionRevision = MLT_MIN_PATCH_VERSION;
 
 static const char kdenlive_version[] = KDENLIVE_VERSION;
 
 static QStringList acodecsList;
 static QStringList vcodecsList;
 
 MyWizardPage::MyWizardPage(QWidget *parent) : QWizardPage(parent)
     , m_isComplete(false)
 {}
 
 void MyWizardPage::setComplete(bool complete)
 {
     m_isComplete = complete;
 }
 
 bool MyWizardPage::isComplete() const
 {
     return m_isComplete;
 }
 
 Wizard::Wizard(bool autoClose, QWidget *parent) :
     QWizard(parent),
     m_systemCheckIsOk(false),
     m_brokenModule(false)
 {
     // Check color theme
     ThemeManager::instance()->initDarkTheme();
     setWindowTitle(i18n("Welcome to Kdenlive"));
     int logoHeight = fontMetrics().height() * 2.5;
     setWizardStyle(QWizard::ModernStyle);
     setOption(QWizard::NoBackButtonOnLastPage, true);
     //setOption(QWizard::ExtendedWatermarkPixmap, false);
     m_page = new MyWizardPage(this);
     m_page->setTitle(i18n("Welcome to Kdenlive %1", QString(kdenlive_version)));
     m_page->setSubTitle(i18n("Using MLT %1", mlt_version_get_string()));
     setPixmap(QWizard::LogoPixmap, KoIconUtils::themedIcon(QStringLiteral(":/pics/kdenlive.png")).pixmap(logoHeight, logoHeight));
     m_startLayout = new QVBoxLayout;
     m_errorWidget = new KMessageWidget(this);
     m_startLayout->addWidget(m_errorWidget);
     m_errorWidget->setCloseButtonVisible(false);
     m_errorWidget->hide();
     m_page->setLayout(m_startLayout);
     addPage(m_page);
 
     /*QWizardPage *page2 = new QWizardPage;
     page2->setTitle(i18n("Video Standard"));
     m_standard.setupUi(page2);*/
     setButtonText(QWizard::CancelButton, i18n("Abort"));
     setButtonText(QWizard::FinishButton, i18n("OK"));
 
     slotCheckMlt();
     if (!m_errors.isEmpty() || !m_warnings.isEmpty() || !m_infos.isEmpty()) {
         QLabel *lab = new QLabel(this);
         lab->setText(i18n("Startup error or warning, check our <a href='#'>online manual</a>."));
         connect(lab, &QLabel::linkActivated, this, &Wizard::slotOpenManual);
         m_startLayout->addWidget(lab);
     } else {
         // Everything is ok, auto close the wizard
         m_page->setComplete(true);
         if (autoClose) {
             QTimer::singleShot(0, this, &QDialog::accept);
             return;
         } else {
             KMessageWidget *lab = new KMessageWidget(this);
             lab->setText(i18n("Codecs have been updated, everything seems fine."));
             lab->setMessageType(KMessageWidget::Positive);
             lab->setCloseButtonVisible(false);
             m_startLayout->addWidget(lab);
             setOption(QWizard::NoCancelButton, true);
             return;
         }
     }
     if (!m_errors.isEmpty()) {
         KMessageWidget *errorLabel = new KMessageWidget(this);
         errorLabel->setText(QStringLiteral("<ul>") + m_errors + QStringLiteral("</ul>"));
         errorLabel->setMessageType(KMessageWidget::Error);
         errorLabel->setWordWrap(true);
         errorLabel->setCloseButtonVisible(false);
         m_startLayout->addWidget(errorLabel);
         m_page->setComplete(false);
         errorLabel->show();
         if (!autoClose) {
             setButtonText(QWizard::CancelButton, i18n("Close"));
         }
     } else {
         m_page->setComplete(true);
         if (!autoClose) {
             setOption(QWizard::NoCancelButton, true);
         }
     }
     if (!m_warnings.isEmpty()) {
         KMessageWidget *errorLabel = new KMessageWidget(this);
         errorLabel->setText(QStringLiteral("<ul>") + m_warnings + QStringLiteral("</ul>"));
         errorLabel->setMessageType(KMessageWidget::Warning);
         errorLabel->setWordWrap(true);
         errorLabel->setCloseButtonVisible(false);
         m_startLayout->addWidget(errorLabel);
         errorLabel->show();
     }
     if (!m_infos.isEmpty()) {
         KMessageWidget *errorLabel = new KMessageWidget(this);
         errorLabel->setText(QStringLiteral("<ul>") + m_infos + QStringLiteral("</ul>"));
         errorLabel->setMessageType(KMessageWidget::Information);
         errorLabel->setWordWrap(true);
         errorLabel->setCloseButtonVisible(false);
         m_startLayout->addWidget(errorLabel);
         errorLabel->show();
     }
     // build profiles lists
     /*QMap<QString, QString> profilesInfo = ProfilesDialog::getProfilesInfo();
     QMap<QString, QString>::const_iterator i = profilesInfo.constBegin();
     while (i != profilesInfo.constEnd()) {
         QMap< QString, QString > profileData = ProfilesDialog::getSettingsFromFile(i.key());
         if (profileData.value(QStringLiteral("width")) == QLatin1String("720")) m_dvProfiles.insert(i.value(), i.key());
         else if (profileData.value(QStringLiteral("width")).toInt() >= 1080) m_hdvProfiles.insert(i.value(), i.key());
         else m_otherProfiles.insert(i.value(), i.key());
         ++i;
     }
 
     m_standard.button_all->setChecked(true);
     connect(m_standard.button_all, SIGNAL(toggled(bool)), this, SLOT(slotCheckStandard()));
     connect(m_standard.button_hdv, SIGNAL(toggled(bool)), this, SLOT(slotCheckStandard()));
     connect(m_standard.button_dv, SIGNAL(toggled(bool)), this, SLOT(slotCheckStandard()));
     slotCheckStandard();
     connect(m_standard.profiles_list, SIGNAL(itemSelectionChanged()), this, SLOT(slotCheckSelectedItem()));
 
     // select default profile
     if (!KdenliveSettings::default_profile().isEmpty()) {
         for (int i = 0; i < m_standard.profiles_list->count(); ++i) {
             if (m_standard.profiles_list->item(i)->data(Qt::UserRole).toString() == KdenliveSettings::default_profile()) {
                 m_standard.profiles_list->setCurrentRow(i);
                 m_standard.profiles_list->scrollToItem(m_standard.profiles_list->currentItem());
                 break;
             }
         }
     }
 
     setPage(2, page2);
 
     QWizardPage *page3 = new QWizardPage;
     page3->setTitle(i18n("Additional Settings"));
     m_extra.setupUi(page3);
     m_extra.projectfolder->setMode(KFile::Directory);
     m_extra.projectfolder->setUrl(QUrl(KdenliveSettings::defaultprojectfolder()));
     m_extra.videothumbs->setChecked(KdenliveSettings::videothumbnails());
     m_extra.audiothumbs->setChecked(KdenliveSettings::audiothumbnails());
     m_extra.autosave->setChecked(KdenliveSettings::crashrecovery());
     connect(m_extra.videothumbs, SIGNAL(stateChanged(int)), this, SLOT(slotCheckThumbs()));
     connect(m_extra.audiothumbs, SIGNAL(stateChanged(int)), this, SLOT(slotCheckThumbs()));
     slotCheckThumbs();
     addPage(page3);*/
 
 #ifndef Q_WS_MAC
     /*QWizardPage *page6 = new QWizardPage;
     page6->setTitle(i18n("Capture device"));
     m_capture.setupUi(page6);
     bool found_decklink = Render::getBlackMagicDeviceList(m_capture.decklink_devices);
     KdenliveSettings::setDecklink_device_found(found_decklink);
     if (found_decklink) m_capture.decklink_status->setText(i18n("Default Blackmagic Decklink card:"));
     else m_capture.decklink_status->setText(i18n("No Blackmagic Decklink device found"));
     connect(m_capture.decklink_devices, SIGNAL(currentIndexChanged(int)), this, SLOT(slotUpdateDecklinkDevice(int)));
     connect(m_capture.button_reload, SIGNAL(clicked()), this, SLOT(slotDetectWebcam()));
     connect(m_capture.v4l_devices, SIGNAL(currentIndexChanged(int)), this, SLOT(slotUpdateCaptureParameters()));
     connect(m_capture.v4l_formats, SIGNAL(currentIndexChanged(int)), this, SLOT(slotSaveCaptureFormat()));
     m_capture.button_reload->setIcon(QIcon::fromTheme(QStringLiteral("view-refresh")));*/
 
 #endif
 
     //listViewDelegate = new WizardDelegate(treeWidget);
     //m_check.programList->setItemDelegate(listViewDelegate);
     //slotDetectWebcam();
     //QTimer::singleShot(500, this, SLOT(slotCheckMlt()));
 }
 
 void Wizard::slotDetectWebcam()
 {
 #ifdef USE_V4L
     m_capture.v4l_devices->blockSignals(true);
     m_capture.v4l_devices->clear();
 
     // Video 4 Linux device detection
     for (int i = 0; i < 10; ++i) {
         QString path = "/dev/video" + QString::number(i);
         if (QFile::exists(path)) {
             QStringList deviceInfo = V4lCaptureHandler::getDeviceName(path.toUtf8().constData());
             if (!deviceInfo.isEmpty()) {
                 m_capture.v4l_devices->addItem(deviceInfo.at(0), path);
                 m_capture.v4l_devices->setItemData(m_capture.v4l_devices->count() - 1, deviceInfo.at(1), Qt::UserRole + 1);
             }
         }
     }
     if (m_capture.v4l_devices->count() > 0) {
         m_capture.v4l_status->setText(i18n("Default video4linux device:"));
         // select default device
         bool found = false;
         for (int i = 0; i < m_capture.v4l_devices->count(); ++i) {
             QString device = m_capture.v4l_devices->itemData(i).toString();
             if (device == KdenliveSettings::video4vdevice()) {
                 m_capture.v4l_devices->setCurrentIndex(i);
                 found = true;
                 break;
             }
         }
         slotUpdateCaptureParameters();
         if (!found) {
             m_capture.v4l_devices->setCurrentIndex(0);
         }
     } else {
         m_capture.v4l_status->setText(i18n("No device found, plug your webcam and refresh."));
     }
     m_capture.v4l_devices->blockSignals(false);
 #endif /* USE_V4L */
 }
 
 void Wizard::slotUpdateCaptureParameters()
 {
     QString device = m_capture.v4l_devices->itemData(m_capture.v4l_devices->currentIndex()).toString();
     if (!device.isEmpty()) {
         KdenliveSettings::setVideo4vdevice(device);
     }
 
     QString formats = m_capture.v4l_devices->itemData(m_capture.v4l_devices->currentIndex(), Qt::UserRole + 1).toString();
 
     m_capture.v4l_formats->blockSignals(true);
     m_capture.v4l_formats->clear();
 
     QDir dir(QStandardPaths::writableLocation(QStandardPaths::AppDataLocation) + QStringLiteral("/profiles/"));
     if (!dir.exists()) {
         dir.mkpath(QStringLiteral("."));
     }
 
     if (dir.exists(QStringLiteral("video4linux"))) {
         MltVideoProfile profileInfo = ProfilesDialog::getVideoProfile(dir.absoluteFilePath(QStringLiteral("video4linux")));
         m_capture.v4l_formats->addItem(i18n("Current settings (%1x%2, %3/%4fps)", profileInfo.width, profileInfo.height, profileInfo.frame_rate_num, profileInfo.frame_rate_den), QStringList() << QStringLiteral("unknown") << QString::number(profileInfo.width) << QString::number(profileInfo.height) << QString::number(profileInfo.frame_rate_num) << QString::number(profileInfo.frame_rate_den));
     }
     QStringList pixelformats = formats.split('>', QString::SkipEmptyParts);
     QString itemSize;
     QString pixelFormat;
     QStringList itemRates;
     for (int i = 0; i < pixelformats.count(); ++i) {
         QString format = pixelformats.at(i).section(QLatin1Char(':'), 0, 0);
         QStringList sizes = pixelformats.at(i).split(':', QString::SkipEmptyParts);
         pixelFormat = sizes.takeFirst();
         for (int j = 0; j < sizes.count(); ++j) {
             itemSize = sizes.at(j).section(QLatin1Char('='), 0, 0);
             itemRates = sizes.at(j).section(QLatin1Char('='), 1, 1).split(QLatin1Char(','), QString::SkipEmptyParts);
             for (int k = 0; k < itemRates.count(); ++k) {
                 QString formatDescription = QLatin1Char('[') + format + QStringLiteral("] ") + itemSize + QStringLiteral(" (") + itemRates.at(k) + QLatin1Char(')');
                 if (m_capture.v4l_formats->findText(formatDescription) == -1) {
                     m_capture.v4l_formats->addItem(formatDescription, QStringList() << format << itemSize.section('x', 0, 0) << itemSize.section('x', 1, 1) << itemRates.at(k).section(QLatin1Char('/'), 0, 0) << itemRates.at(k).section(QLatin1Char('/'), 1, 1));
                 }
             }
         }
     }
     if (!dir.exists(QStringLiteral("video4linux"))) {
         if (m_capture.v4l_formats->count() > 9) {
             slotSaveCaptureFormat();
         } else {
             // No existing profile and no autodetected profiles
             MltVideoProfile profileInfo;
             profileInfo.width = 320;
             profileInfo.height = 200;
             profileInfo.frame_rate_num = 15;
             profileInfo.frame_rate_den = 1;
             profileInfo.display_aspect_num = 4;
             profileInfo.display_aspect_den = 3;
             profileInfo.sample_aspect_num = 1;
             profileInfo.sample_aspect_den = 1;
             profileInfo.progressive = 1;
             profileInfo.colorspace = 601;
             ProfilesDialog::saveProfile(profileInfo, dir.absoluteFilePath(QStringLiteral("video4linux")));
             m_capture.v4l_formats->addItem(i18n("Default settings (%1x%2, %3/%4fps)", profileInfo.width, profileInfo.height, profileInfo.frame_rate_num, profileInfo.frame_rate_den), QStringList() << QStringLiteral("unknown") << QString::number(profileInfo.width) << QString::number(profileInfo.height) << QString::number(profileInfo.frame_rate_num) << QString::number(profileInfo.frame_rate_den));
         }
     }
     m_capture.v4l_formats->blockSignals(false);
 }
 
 void Wizard::checkMltComponents()
 {
     m_brokenModule = false;
     Mlt::Repository *repository = Mlt::Factory::init();
     if (!repository) {
         m_errors.append(i18n("<li>Cannot start MLT backend, check your installation</li>"));
         m_systemCheckIsOk = false;
     } else {
         int mltVersion = (mltVersionMajor << 16) + (mltVersionMinor << 8) + mltVersionRevision;
         int runningVersion = mlt_version_get_int();
         if (runningVersion < mltVersion) {
             m_errors.append(i18n("<li>Unsupported MLT version<br/>Please <b>upgrade</b> to %1.%2.%3</li>", mltVersionMajor, mltVersionMinor, mltVersionRevision));
             m_systemCheckIsOk = false;
         }
         // Retrieve the list of available transitions.
         Mlt::Properties *producers = repository->producers();
         QStringList producersItemList;
         producersItemList.reserve(producers->count());
         for (int i = 0; i < producers->count(); ++i) {
             producersItemList << producers->get_name(i);
         }
         delete producers;
 
         // Check that we have the frei0r effects installed
         Mlt::Properties *filters = repository->filters();
         bool hasFrei0r = false;
         QString filterName;
         for (int i = 0; i < filters->count(); ++i) {
             filterName = filters->get_name(i);
             if (filterName.startsWith(QStringLiteral("frei0r."))) {
                 hasFrei0r = true;
                 break;
             }
         }
         delete filters;
         if (!hasFrei0r) {
             // Frei0r effects not found
             m_warnings.append(i18n("<li>Missing package: <b>Frei0r</b> effects (frei0r-plugins)<br/>provides many effects and transitions. Install recommended</li>"));
         }
 
+#ifndef Q_OS_WIN
         // Check that we have the breeze icon theme installed
         const QStringList iconPaths = QIcon::themeSearchPaths();
         bool hasBreeze = false;
         for (const QString &path : iconPaths) {
             QDir dir(path);
             if (dir.exists(QStringLiteral("breeze"))) {
                 hasBreeze = true;
                 break;
             }
         }
         if (!hasBreeze) {
             // Breeze icons not found
             m_warnings.append(i18n("<li>Missing package: <b>Breeze</b> icons (breeze-icon-theme)<br/>provides many icons used in Kdenlive. Install recommended</li>"));
         }
+#endif
 
         Mlt::Properties *consumers = repository->consumers();
         QStringList consumersItemList;
         consumersItemList.reserve(consumers->count());
         for (int i = 0; i < consumers->count(); ++i) {
             consumersItemList << consumers->get_name(i);
         }
         delete consumers;
 
         if (!consumersItemList.contains(QStringLiteral("sdl")) && !consumersItemList.contains(QStringLiteral("rtaudio"))) {
             // SDL module
             m_errors.append(i18n("<li>Missing MLT module: <b>sdl</b> or <b>rtaudio</b><br/>required for audio output</li>"));
             m_systemCheckIsOk = false;
         }
         // AVformat module
         Mlt::Consumer *consumer = nullptr;
         Mlt::Profile p;
         if (consumersItemList.contains(QStringLiteral("avformat"))) {
             consumer = new Mlt::Consumer(p, "avformat");
         }
         if (consumer == nullptr || !consumer->is_valid()) {
             m_warnings.append(i18n("<li>Missing MLT module: <b>avformat</b> (FFmpeg)<br/>required for audio/video</li>"));
             m_brokenModule = true;
         } else {
             consumer->set("vcodec", "list");
             consumer->set("acodec", "list");
             consumer->set("f", "list");
             consumer->start();
             Mlt::Properties vcodecs((mlt_properties) consumer->get_data("vcodec"));
             for (int i = 0; i < vcodecs.count(); ++i) {
                 vcodecsList << QString(vcodecs.get(i));
             }
             Mlt::Properties acodecs((mlt_properties) consumer->get_data("acodec"));
             for (int i = 0; i < acodecs.count(); ++i) {
                 acodecsList << QString(acodecs.get(i));
             }
             checkMissingCodecs();
             delete consumer;
         }
 
         // Image module
         if (!producersItemList.contains(QStringLiteral("qimage")) && !producersItemList.contains(QStringLiteral("pixbuf"))) {
             m_warnings.append(i18n("<li>Missing MLT module: <b>qimage</b> or <b>pixbuf</b><br/>required for images and titles</li>"));
             m_brokenModule = true;
         }
 
         // Titler module
         if (!producersItemList.contains(QStringLiteral("kdenlivetitle"))) {
             m_warnings.append(i18n("<li>Missing MLT module: <b>kdenlivetitle</b><br/>required to create titles</li>"));
             KdenliveSettings::setHastitleproducer(false);
             m_brokenModule = true;
         } else {
             KdenliveSettings::setHastitleproducer(true);
         }
     }
     if (m_systemCheckIsOk && !m_brokenModule) {
         // everything is ok
         return;
     }
     if (!m_systemCheckIsOk || m_brokenModule) {
         // Something is wrong with install
         if (!m_systemCheckIsOk) {
             //WARN
         }
     } else {
         // OK
     }
 }
 
 void Wizard::checkMissingCodecs()
 {
     bool replaceVorbisCodec = false;
     if (acodecsList.contains(QStringLiteral("libvorbis"))) {
         replaceVorbisCodec = true;
     }
     bool replaceLibfaacCodec = false;
     if (!acodecsList.contains(QStringLiteral("aac")) && acodecsList.contains(QStringLiteral("libfaac"))) {
         replaceLibfaacCodec = true;
     }
     QStringList profilesList;
     profilesList << QStandardPaths::locate(QStandardPaths::AppDataLocation, QStringLiteral("export/profiles.xml"));
     QDir directory = QDir(QStandardPaths::writableLocation(QStandardPaths::AppDataLocation) + QStringLiteral("/export/"));
     QStringList filter;
     filter << QStringLiteral("*.xml");
     const QStringList fileList = directory.entryList(filter, QDir::Files);
     for (const QString &filename : fileList) {
         profilesList << directory.absoluteFilePath(filename);
     }
 
     // We should parse customprofiles.xml in last position, so that user profiles
     // can also override profiles installed by KNewStuff
     QStringList requiredACodecs;
     QStringList requiredVCodecs;
     foreach (const QString &filename, profilesList) {
         QDomDocument doc;
         QFile file(filename);
         doc.setContent(&file, false);
         file.close();
         QString std;
         QString format;
         QDomNodeList profiles = doc.elementsByTagName(QStringLiteral("profile"));
         for (int i = 0; i < profiles.count(); ++i) {
             std = profiles.at(i).toElement().attribute(QStringLiteral("args"));
             format.clear();
             if (std.startsWith(QLatin1String("acodec="))) {
                 format = std.section(QStringLiteral("acodec="), 1, 1);
             } else if (std.contains(QStringLiteral(" acodec="))) {
                 format = std.section(QStringLiteral(" acodec="), 1, 1);
             }
             if (!format.isEmpty()) {
                 requiredACodecs << format.section(QLatin1Char(' '), 0, 0).toLower();
             }
             format.clear();
             if (std.startsWith(QLatin1String("vcodec="))) {
                 format = std.section(QStringLiteral("vcodec="), 1, 1);
             } else if (std.contains(QStringLiteral(" vcodec="))) {
                 format = std.section(QStringLiteral(" vcodec="), 1, 1);
             }
             if (!format.isEmpty()) {
                 requiredVCodecs << format.section(QLatin1Char(' '), 0, 0).toLower();
             }
         }
     }
     requiredACodecs.removeDuplicates();
     requiredVCodecs.removeDuplicates();
     if (replaceVorbisCodec)  {
         int ix = requiredACodecs.indexOf(QStringLiteral("vorbis"));
         if (ix > -1) {
             requiredACodecs.replace(ix, QStringLiteral("libvorbis"));
         }
     }
     if (replaceLibfaacCodec) {
         int ix = requiredACodecs.indexOf(QStringLiteral("aac"));
         if (ix > -1) {
             requiredACodecs.replace(ix, QStringLiteral("libfaac"));
         }
     }
     for (int i = 0; i < acodecsList.count(); ++i) {
         requiredACodecs.removeAll(acodecsList.at(i));
     }
     for (int i = 0; i < vcodecsList.count(); ++i) {
         requiredVCodecs.removeAll(vcodecsList.at(i));
     }
     if (!requiredACodecs.isEmpty() || !requiredVCodecs.isEmpty()) {
         QString missing = requiredACodecs.join(QLatin1Char(','));
         if (!missing.isEmpty() && !requiredVCodecs.isEmpty()) {
             missing.append(',');
         }
         missing.append(requiredVCodecs.join(QLatin1Char(',')));
         missing.prepend(i18n("The following codecs were not found on your system. Check our <a href=''>online manual</a> if you need them: "));
         m_infos.append(QString("<li>%1</li>").arg(missing));
     }
 }
 
 void Wizard::slotCheckPrograms()
 {
     bool allIsOk = true;
 
     // Check first in same folder as melt exec
     const QStringList mltpath = QStringList() << QFileInfo(KdenliveSettings::rendererpath()).canonicalPath();
     QString exepath = QStandardPaths::findExecutable(QStringLiteral("ffmpeg%1").arg(FFMPEG_SUFFIX), mltpath);
     if (exepath.isEmpty()) {
         exepath = QStandardPaths::findExecutable(QStringLiteral("ffmpeg%1").arg(FFMPEG_SUFFIX));
     }
     QString playpath = QStandardPaths::findExecutable(QStringLiteral("ffplay%1").arg(FFMPEG_SUFFIX), mltpath);
     if (playpath.isEmpty()) {
         playpath = QStandardPaths::findExecutable(QStringLiteral("ffplay%1").arg(FFMPEG_SUFFIX));
     }
     QString probepath = QStandardPaths::findExecutable(QStringLiteral("ffprobe%1").arg(FFMPEG_SUFFIX), mltpath);
     if (probepath.isEmpty()) {
         probepath = QStandardPaths::findExecutable(QStringLiteral("ffprobe%1").arg(FFMPEG_SUFFIX));
     }
     if (exepath.isEmpty()) {
         // Check for libav version
         exepath = QStandardPaths::findExecutable(QStringLiteral("avconv"));
         if (exepath.isEmpty()) {
             m_warnings.append(i18n("<li>Missing app: <b>ffmpeg</b><br/>required for proxy clips and transcoding</li>"));
             allIsOk = false;
         }
     }
     if (playpath.isEmpty()) {
         // Check for libav version
         playpath = QStandardPaths::findExecutable(QStringLiteral("avplay"));
         if (playpath.isEmpty()) {
             m_infos.append(i18n("<li>Missing app: <b>ffplay</b><br/>recommended for some preview jobs</li>"));
         }
     }
     if (probepath.isEmpty()) {
         // Check for libav version
         probepath = QStandardPaths::findExecutable(QStringLiteral("avprobe"));
         if (probepath.isEmpty()) {
             m_infos.append(i18n("<li>Missing app: <b>ffprobe</b><br/>recommended for extra clip analysis</li>"));
         }
     }
     if (!exepath.isEmpty()) {
         KdenliveSettings::setFfmpegpath(exepath);
     }
     if (!playpath.isEmpty()) {
         KdenliveSettings::setFfplaypath(playpath);
     }
     if (!probepath.isEmpty()) {
         KdenliveSettings::setFfprobepath(probepath);
     }
 
 // Deprecated
     /*
     #ifndef Q_WS_MAC
         item = new QTreeWidgetItem(m_treeWidget, QStringList() << QString() << i18n("dvgrab"));
         item->setData(1, Qt::UserRole, i18n("Required for firewire capture"));
         item->setSizeHint(0, m_itemSize);
         if (QStandardPaths::findExecutable(QStringLiteral("dvgrab")).isEmpty()) item->setIcon(0, m_badIcon);
         else item->setIcon(0, m_okIcon);
     #endif
     */
     if (QStandardPaths::findExecutable(QStringLiteral("dvdauthor")).isEmpty()) {
         m_infos.append(i18n("<li>Missing app: <b>dvdauthor</b><br/>required for creation of DVD</li>"));
         allIsOk = false;
     }
 
     if (QStandardPaths::findExecutable(QStringLiteral("genisoimage")).isEmpty()) {
         // no GenIso, check for mkisofs
         if (QStandardPaths::findExecutable(QStringLiteral("mkisofs")).isEmpty()) {
             m_infos.append(i18n("<li>Missing app: <b>genisoimage</b> or <b>mkisofs</b><br/>required for creation of DVD ISO images</li>"));
             allIsOk = false;
         }
     }
 
     if (QStandardPaths::findExecutable(QStringLiteral("xine")).isEmpty() && QStandardPaths::findExecutable(QStringLiteral("vlc")).isEmpty()) {
         m_infos.append(i18n("<li>Missing app: <b>vlc</b> or <b>xine</b><br/>recommended to preview DVD</li>"));
         allIsOk = false;
     }
 
     // set up some default applications
     QString program;
     if (KdenliveSettings::defaultimageapp().isEmpty()) {
         program = QStandardPaths::findExecutable(QStringLiteral("gimp"));
         if (program.isEmpty()) {
             program = QStandardPaths::findExecutable(QStringLiteral("krita"));
         }
         if (!program.isEmpty()) {
             KdenliveSettings::setDefaultimageapp(program);
         }
     }
     if (KdenliveSettings::defaultaudioapp().isEmpty()) {
         program = QStandardPaths::findExecutable(QStringLiteral("audacity"));
         if (program.isEmpty()) {
             program = QStandardPaths::findExecutable(QStringLiteral("traverso"));
         }
         if (!program.isEmpty()) {
             KdenliveSettings::setDefaultaudioapp(program);
         }
     }
     if (allIsOk) {
         // OK
     } else {
         // WRONG
     }
 }
 
 void Wizard::installExtraMimes(const QString &baseName, const QStringList &globs)
 {
     QMimeDatabase db;
     QString mimefile = baseName;
     mimefile.replace('/', '-');
     QMimeType mime = db.mimeTypeForName(baseName);
     QStringList missingGlobs;
 
     foreach (const QString &glob, globs) {
         QMimeType type = db.mimeTypeForFile(glob, QMimeDatabase::MatchExtension);
         QString mimeName = type.name();
         if (!mimeName.contains(QStringLiteral("audio")) && !mimeName.contains(QStringLiteral("video"))) {
             missingGlobs << glob;
         }
     }
     if (missingGlobs.isEmpty()) {
         return;
     }
     if (!mime.isValid() || mime.isDefault()) {
         qCDebug(KDENLIVE_LOG) << "mimeType " << baseName << " not found";
     } else {
         QStringList extensions = mime.globPatterns();
         QString comment = mime.comment();
         foreach (const QString &glob, missingGlobs) {
             if (!extensions.contains(glob)) {
                 extensions << glob;
             }
         }
         //qCDebug(KDENLIVE_LOG) << "EXTS: " << extensions;
         QDir mimeDir(QStandardPaths::writableLocation(QStandardPaths::GenericDataLocation) + QStringLiteral("/mime/packages/"));
         if (!mimeDir.exists()) {
             mimeDir.mkpath(QStringLiteral("."));
         }
         QString packageFileName = mimeDir.absoluteFilePath(mimefile + QStringLiteral(".xml"));
         //qCDebug(KDENLIVE_LOG) << "INSTALLING NEW MIME TO: " << packageFileName;
         QFile packageFile(packageFileName);
         if (!packageFile.open(QIODevice::WriteOnly)) {
             qCCritical(KDENLIVE_LOG) << "Couldn't open" << packageFileName << "for writing";
             return;
         }
         QXmlStreamWriter writer(&packageFile);
         writer.setAutoFormatting(true);
         writer.writeStartDocument();
 
         const QString nsUri = QStringLiteral("http://www.freedesktop.org/standards/shared-mime-info");
         writer.writeDefaultNamespace(nsUri);
         writer.writeStartElement(QStringLiteral("mime-info"));
         writer.writeStartElement(nsUri, QStringLiteral("mime-type"));
         writer.writeAttribute(QStringLiteral("type"), baseName);
 
         if (!comment.isEmpty()) {
             writer.writeStartElement(nsUri, QStringLiteral("comment"));
             writer.writeCharacters(comment);
             writer.writeEndElement(); // comment
         }
 
         foreach (const QString &pattern, extensions) {
             writer.writeStartElement(nsUri, QStringLiteral("glob"));
             writer.writeAttribute(QStringLiteral("pattern"), pattern);
             writer.writeEndElement(); // glob
         }
 
         writer.writeEndElement(); // mime-info
         writer.writeEndElement(); // mime-type
         writer.writeEndDocument();
     }
 }
 
 void Wizard::runUpdateMimeDatabase()
 {
     const QString localPackageDir = QStandardPaths::writableLocation(QStandardPaths::GenericDataLocation) + QStringLiteral("/mime/");
     //Q_ASSERT(!localPackageDir.isEmpty());
     KProcess proc;
     proc << QStringLiteral("update-mime-database");
     proc << localPackageDir;
     const int exitCode = proc.execute();
     if (exitCode) {
         qCWarning(KDENLIVE_LOG) << proc.program() << "exited with error code" << exitCode;
     }
 }
 
 void Wizard::slotCheckStandard()
 {
     m_standard.profiles_list->clear();
     QStringList profiles;
     if (!m_standard.button_hdv->isChecked()) {
         // DV standard
         QMapIterator<QString, QString> i(m_dvProfiles);
         while (i.hasNext()) {
             i.next();
             QListWidgetItem *item = new QListWidgetItem(i.key(), m_standard.profiles_list);
             item->setData(Qt::UserRole, i.value());
         }
     }
     if (!m_standard.button_dv->isChecked()) {
         // HDV standard
         QMapIterator<QString, QString> i(m_hdvProfiles);
         while (i.hasNext()) {
             i.next();
             QListWidgetItem *item = new QListWidgetItem(i.key(), m_standard.profiles_list);
             item->setData(Qt::UserRole, i.value());
         }
     }
     if (m_standard.button_all->isChecked()) {
         QMapIterator<QString, QString> i(m_otherProfiles);
         while (i.hasNext()) {
             i.next();
             QListWidgetItem *item = new QListWidgetItem(i.key(), m_standard.profiles_list);
             item->setData(Qt::UserRole, i.value());
         }
         //m_standard.profiles_list->sortItems();
     }
 
     for (int i = 0; i < m_standard.profiles_list->count(); ++i) {
         QListWidgetItem *item = m_standard.profiles_list->item(i);
 
         QMap< QString, QString > values = ProfilesDialog::getSettingsFromFile(item->data(Qt::UserRole).toString());
         const QString infoString = ("<strong>" + i18n("Frame size:") + QStringLiteral(" </strong>%1x%2<br /><strong>") + i18n("Frame rate:") + QStringLiteral(" </strong>%3/%4<br /><strong>")
                                     + i18n("Pixel aspect ratio:") + QStringLiteral("</strong>%5/%6<br /><strong>") + i18n("Display aspect ratio:")
                                     + QStringLiteral(" </strong>%7/%8")).arg(values.value(QStringLiteral("width")), values.value(QStringLiteral("height")), values.value(QStringLiteral("frame_rate_num")), values.value(QStringLiteral("frame_rate_den")), values.value(QStringLiteral("sample_aspect_num")), values.value(QStringLiteral("sample_aspect_den")), values.value(QStringLiteral("display_aspect_num")), values.value(QStringLiteral("display_aspect_den")));
         item->setToolTip(infoString);
     }
 
     m_standard.profiles_list->setSortingEnabled(true);
     m_standard.profiles_list->setCurrentRow(0);
 }
 
 void Wizard::slotCheckSelectedItem()
 {
     // Make sure we always have an item highlighted
     m_standard.profiles_list->setCurrentRow(m_standard.profiles_list->currentRow());
 }
 
 void Wizard::adjustSettings()
 {
     //if (m_extra.installmimes->isChecked()) {
     if (true) {
         QStringList globs;
 
         globs << QStringLiteral("*.mts") << QStringLiteral("*.m2t") << QStringLiteral("*.mod") << QStringLiteral("*.ts") << QStringLiteral("*.m2ts") << QStringLiteral("*.m2v");
         installExtraMimes(QStringLiteral("video/mpeg"), globs);
         globs.clear();
         globs << QStringLiteral("*.dv");
         installExtraMimes(QStringLiteral("video/dv"), globs);
         runUpdateMimeDatabase();
     }
 }
 
 void Wizard::slotCheckMlt()
 {
     QString errorMessage;
     if (KdenliveSettings::rendererpath().isEmpty()) {
         errorMessage.append(i18n("Your MLT installation cannot be found. Install MLT and restart Kdenlive.\n"));
     }
 
     if (!errorMessage.isEmpty()) {
         errorMessage.prepend(QStringLiteral("<b>%1</b><br />").arg(i18n("Fatal Error")));
         QLabel *pix = new QLabel();
         pix->setPixmap(QIcon::fromTheme(QStringLiteral("dialog-error")).pixmap(30));
         QLabel *label = new QLabel(errorMessage);
         label->setWordWrap(true);
         m_startLayout->addSpacing(40);
         m_startLayout->addWidget(pix);
         m_startLayout->addWidget(label);
         m_systemCheckIsOk = false;
         // Warn
     } else {
         m_systemCheckIsOk = true;
     }
 
     if (m_systemCheckIsOk) {
         checkMltComponents();
     }
     slotCheckPrograms();
 }
 
 bool Wizard::isOk() const
 {
     return m_systemCheckIsOk;
 }
 
 void Wizard::slotOpenManual()
 {
     KRun::runUrl(QUrl(QStringLiteral("https://kdenlive.org/troubleshooting")), QStringLiteral("text/html"), this);
 }
 
 void Wizard::slotShowWebInfos()
 {
     KRun::runUrl(QUrl("http://kdenlive.org/discover/" + QString(kdenlive_version).section(QLatin1Char(' '), 0, 0)), QStringLiteral("text/html"), this);
 }
 
 void Wizard::slotSaveCaptureFormat()
 {
     QStringList format = m_capture.v4l_formats->itemData(m_capture.v4l_formats->currentIndex()).toStringList();
     if (format.isEmpty()) {
         return;
     }
     MltVideoProfile profile;
     profile.description = QStringLiteral("Video4Linux capture");
     profile.colorspace = 601;
     profile.width = format.at(1).toInt();
     profile.height = format.at(2).toInt();
     profile.sample_aspect_num = 1;
     profile.sample_aspect_den = 1;
     profile.display_aspect_num = format.at(1).toInt();
     profile.display_aspect_den = format.at(2).toInt();
     profile.frame_rate_num = format.at(3).toInt();
     profile.frame_rate_den = format.at(4).toInt();
     profile.progressive = 1;
     QDir dir(QStandardPaths::writableLocation(QStandardPaths::AppDataLocation) + QStringLiteral("/profiles/"));
     if (!dir.exists()) {
         dir.mkpath(QStringLiteral("."));
     }
     ProfilesDialog::saveProfile(profile, dir.absoluteFilePath(QStringLiteral("video4linux")));
 }
 
 void Wizard::slotUpdateDecklinkDevice(int captureCard)
 {
     KdenliveSettings::setDecklink_capturedevice(captureCard);
 }
 
diff --git a/src/mltcontroller/producerqueue.cpp b/src/mltcontroller/producerqueue.cpp
index eb8ba2c86..e8476e8b4 100644
--- a/src/mltcontroller/producerqueue.cpp
+++ b/src/mltcontroller/producerqueue.cpp
@@ -1,994 +1,999 @@
 /*
 Copyright (C) 2016  Jean-Baptiste Mardelle <jb@kdenlive.org>
 This file is part of Kdenlive. See www.kdenlive.org.
 
 This program is free software; you can redistribute it and/or
 modify it under the terms of the GNU General Public License as
 published by the Free Software Foundation; either version 2 of
 the License or (at your option) version 3 or any later version
 accepted by the membership of KDE e.V. (or its successor approved
 by the membership of KDE e.V.), which shall act as a proxy
 defined in Section 14 of version 3 of the license.
 
 This program is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 GNU General Public License for more details.
 
 You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
 #include "producerqueue.h"
 #include "clipcontroller.h"
 #include "bincontroller.h"
 #include "kdenlivesettings.h"
 #include "bin/projectclip.h"
 #include "doc/kthumb.h"
 #include "dialogs/profilesdialog.h"
 #include "project/dialogs/slideshowclip.h"
 #include "timeline/clip.h"
 
 #include <QtConcurrent>
 
 ProducerQueue::ProducerQueue(BinController *controller) : QObject(controller)
     , m_binController(controller)
 {
     connect(this, SIGNAL(multiStreamFound(QString, QList<int>, QList<int>, stringMap)), this, SLOT(slotMultiStreamProducerFound(QString, QList<int>, QList<int>, stringMap)));
     connect(this, &ProducerQueue::refreshTimelineProducer, m_binController, &BinController::replaceTimelineProducer);
 }
 
 ProducerQueue::~ProducerQueue()
 {
     abortOperations();
 }
 
 void ProducerQueue::getFileProperties(const QDomElement &xml, const QString &clipId, int imageHeight, bool replaceProducer)
 {
     // Make sure we don't request the info for same clip twice
     m_infoMutex.lock();
     if (m_processingClipId.contains(clipId)) {
         m_infoMutex.unlock();
         return;
     }
     for (int i = 0; i < m_requestList.count(); ++i) {
         if (m_requestList.at(i).clipId == clipId) {
             // Clip is already queued
             m_infoMutex.unlock();
             return;
         }
     }
     requestClipInfo info;
     info.xml = xml;
     info.clipId = clipId;
     info.imageHeight = imageHeight;
     info.replaceProducer = replaceProducer;
     m_requestList.append(info);
     m_infoMutex.unlock();
     if (!m_infoThread.isRunning()) {
         m_infoThread = QtConcurrent::run(this, &ProducerQueue::processFileProperties);
     }
 }
 
 void ProducerQueue::forceProcessing(const QString &id)
 {
     // Make sure we load the clip producer now so that we can use it in timeline
     QList<requestClipInfo> requestListCopy;
     if (m_processingClipId.contains(id)) {
         m_infoMutex.lock();
         requestListCopy = m_requestList;
         m_requestList.clear();
         m_infoMutex.unlock();
         m_infoThread.waitForFinished();
         emit infoProcessingFinished();
     } else {
         m_infoMutex.lock();
         for (int i = 0; i < m_requestList.count(); ++i) {
             requestClipInfo info = m_requestList.at(i);
             if (info.clipId == id) {
                 m_requestList.removeAt(i);
                 requestListCopy = m_requestList;
                 m_requestList.clear();
                 m_requestList.append(info);
                 break;
             }
         }
         m_infoMutex.unlock();
         if (!m_infoThread.isRunning()) {
             m_infoThread = QtConcurrent::run(this, &ProducerQueue::processFileProperties);
         }
         m_infoThread.waitForFinished();
         emit infoProcessingFinished();
     }
 
     m_infoMutex.lock();
     m_requestList.append(requestListCopy);
     m_infoMutex.unlock();
     if (!m_infoThread.isRunning()) {
         m_infoThread = QtConcurrent::run(this, &ProducerQueue::processFileProperties);
     }
 }
 
 void ProducerQueue::slotProcessingDone(const QString &id)
 {
     QMutexLocker lock(&m_infoMutex);
     m_processingClipId.removeAll(id);
 }
 
 bool ProducerQueue::isProcessing(const QString &id)
 {
     if (m_processingClipId.contains(id)) {
         return true;
     }
     QMutexLocker lock(&m_infoMutex);
     for (int i = 0; i < m_requestList.count(); ++i) {
         if (m_requestList.at(i).clipId == id) {
             return true;
         }
     }
     return false;
 }
 
 void ProducerQueue::processFileProperties()
 {
     requestClipInfo info;
     QLocale locale;
     locale.setNumberOptions(QLocale::OmitGroupSeparator);
     bool forceThumbScale = m_binController->profile()->sar() != 1;
     while (!m_requestList.isEmpty()) {
         m_infoMutex.lock();
         info = m_requestList.takeFirst();
         if (info.xml.hasAttribute(QStringLiteral("thumbnailOnly")) || info.xml.hasAttribute(QStringLiteral("refreshOnly"))) {
             m_infoMutex.unlock();
             // Special case, we just want the thumbnail for existing producer
             Mlt::Producer *prod = new Mlt::Producer(*m_binController->getBinProducer(info.clipId));
             if (!prod || !prod->is_valid()) {
                 continue;
             }
             // Check if we are using GPU accel, then we need to use alternate producer
             if (KdenliveSettings::gpu_accel()) {
                 QString service = prod->get("mlt_service");
                 QString res = prod->get("resource");
                 delete prod;
                 prod = new Mlt::Producer(*m_binController->profile(), service.toUtf8().constData(), res.toUtf8().constData());
                 Mlt::Filter scaler(*m_binController->profile(), "swscale");
                 Mlt::Filter converter(*m_binController->profile(), "avcolor_space");
                 prod->attach(scaler);
                 prod->attach(converter);
             }
             int frameNumber = ProjectClip::getXmlProperty(info.xml, QStringLiteral("kdenlive:thumbnailFrame"), QStringLiteral("-1")).toInt();
             if (frameNumber > 0) {
                 prod->seek(frameNumber);
             }
             Mlt::Frame *frame = prod->get_frame();
             if (frame && frame->is_valid()) {
                 int fullWidth = info.imageHeight * m_binController->profile()->dar() + 0.5;
                 QImage img = KThumb::getFrame(frame, fullWidth, info.imageHeight, forceThumbScale);
                 emit replyGetImage(info.clipId, img);
             }
             delete frame;
             delete prod;
             if (info.xml.hasAttribute(QStringLiteral("refreshOnly"))) {
                 // inform timeline about change
                 emit refreshTimelineProducer(info.clipId);
             }
             continue;
         }
         m_processingClipId.append(info.clipId);
         m_infoMutex.unlock();
         //TODO: read all xml meta.kdenlive properties into a QMap or an MLT::Properties and pass them to the newly created producer
 
         QString path;
         bool proxyProducer;
         QString proxy = ProjectClip::getXmlProperty(info.xml, QStringLiteral("kdenlive:proxy"));
         if (!proxy.isEmpty()) {
             if (proxy == QLatin1String("-")) {
                 path = ProjectClip::getXmlProperty(info.xml, QStringLiteral("kdenlive:originalurl"));
                 if (QFileInfo(path).isRelative()) {
                     path.prepend(m_binController->documentRoot());
                 }
                 proxyProducer = false;
             } else {
                 path = proxy;
                 // Check for missing proxies
                 if (QFileInfo(path).size() <= 0) {
                     // proxy is missing, re-create it
                     emit requestProxy(info.clipId);
                     proxyProducer = false;
                     //path = info.xml.attribute("resource");
                     path = ProjectClip::getXmlProperty(info.xml, QStringLiteral("resource"));
                 } else {
                     proxyProducer = true;
                 }
             }
         } else {
             path = ProjectClip::getXmlProperty(info.xml, QStringLiteral("resource"));
             //path = info.xml.attribute("resource");
             proxyProducer = false;
         }
         //qCDebug(KDENLIVE_LOG)<<" / / /CHECKING PRODUCER PATH: "<<path;
         QUrl url = QUrl::fromLocalFile(path);
         Mlt::Producer *producer = nullptr;
         ClipType type = (ClipType)info.xml.attribute(QStringLiteral("type")).toInt();
         if (type == Unknown) {
             type = getTypeForService(ProjectClip::getXmlProperty(info.xml, QStringLiteral("mlt_service")), path);
         }
         if (type == Color) {
             path.prepend(QStringLiteral("color:"));
             producer = new Mlt::Producer(*m_binController->profile(), nullptr, path.toUtf8().constData());
         } else if (type == Text || type == TextTemplate) {
             path.prepend(QStringLiteral("kdenlivetitle:"));
             producer = new Mlt::Producer(*m_binController->profile(), nullptr, path.toUtf8().constData());
         } else if (type == QText) {
             path.prepend(QStringLiteral("qtext:"));
             producer = new Mlt::Producer(*m_binController->profile(), nullptr, path.toUtf8().constData());
         } else if (type == Playlist && !proxyProducer) {
             //TODO: "xml" seems to corrupt project fps if different, and "consumer" crashed on audio transition
             Mlt::Profile *xmlProfile = new Mlt::Profile();
             xmlProfile->set_explicit(false);
             MltVideoProfile projectProfile = ProfilesDialog::getVideoProfile(*m_binController->profile());
             //path.prepend("consumer:");
             producer = new Mlt::Producer(*xmlProfile, "xml", path.toUtf8().constData());
             if (!producer->is_valid()) {
                 delete producer;
                 delete xmlProfile;
                 m_processingClipId.removeAll(info.clipId);
                 emit removeInvalidClip(info.clipId, info.replaceProducer);
                 continue;
             }
             MltVideoProfile clipProfile = ProfilesDialog::getVideoProfile(*xmlProfile);
             delete producer;
             delete xmlProfile;
             if (clipProfile.isCompatible(projectProfile)) {
                 // We can use the "xml" producer since profile is the same (using it with different profiles corrupts the project.
                 // Beware that "consumer" currently crashes on audio mixes!
                 path.prepend(QStringLiteral("xml:"));
             } else {
                 path.prepend(QStringLiteral("consumer:"));
                 // This is currently crashing so I guess we'd better reject it for now
                 m_processingClipId.removeAll(info.clipId);
                 emit removeInvalidClip(info.clipId, info.replaceProducer, i18n("Cannot import playlists with different profile."));
                 continue;
             }
             m_binController->profile()->set_explicit(true);
             producer = new Mlt::Producer(*m_binController->profile(), nullptr, path.toUtf8().constData());
         } else if (type == SlideShow) {
             producer = new Mlt::Producer(*m_binController->profile(), nullptr, path.toUtf8().constData());
         } else if (!url.isValid()) {
             //WARNING: when is this case used? Not sure it is working.. JBM/
             QDomDocument doc;
             QDomElement mlt = doc.createElement(QStringLiteral("mlt"));
             QDomElement play = doc.createElement(QStringLiteral("playlist"));
             play.setAttribute(QStringLiteral("id"), QStringLiteral("playlist0"));
             doc.appendChild(mlt);
             mlt.appendChild(play);
             play.appendChild(doc.importNode(info.xml, true));
             QDomElement tractor = doc.createElement(QStringLiteral("tractor"));
             tractor.setAttribute(QStringLiteral("id"), QStringLiteral("tractor0"));
             QDomElement track = doc.createElement(QStringLiteral("track"));
             track.setAttribute(QStringLiteral("producer"), QStringLiteral("playlist0"));
             tractor.appendChild(track);
             mlt.appendChild(tractor);
             producer = new Mlt::Producer(*m_binController->profile(), "xml-string", doc.toString().toUtf8().constData());
         } else {
             producer = new Mlt::Producer(*m_binController->profile(), nullptr, path.toUtf8().constData());
             if (producer->is_valid() && info.xml.hasAttribute(QStringLiteral("checkProfile")) && producer->get_int("video_index") > -1) {
                 // Check if clip profile matches
                 QString service = producer->get("mlt_service");
                 // Check for image producer
                 if (service == QLatin1String("qimage") || service == QLatin1String("pixbuf")) {
                     // This is an image, create profile from image size
                     int width = producer->get_int("meta.media.width");
                     int height = producer->get_int("meta.media.height");
                     if (width > 100 && height > 100) {
                         MltVideoProfile projectProfile = ProfilesDialog::getVideoProfile(*m_binController->profile());
                         projectProfile.width = width;
                         projectProfile.height = height;
                         projectProfile.sample_aspect_num = 1;
                         projectProfile.sample_aspect_den = 1;
                         projectProfile.display_aspect_num = width;
                         projectProfile.display_aspect_den = height;
                         projectProfile.description.clear();
                         //delete producer;
                         //m_processingClipId.removeAll(info.clipId);
                         info.xml.removeAttribute(QStringLiteral("checkProfile"));
                         emit switchProfile(projectProfile, info.clipId, info.xml);
                     } else {
                         // Very small image, we probably don't want to use this as profile
                     }
                 } else if (service.contains(QStringLiteral("avformat"))) {
                     Mlt::Profile *blankProfile = new Mlt::Profile();
                     blankProfile->set_explicit(false);
                     if (KdenliveSettings::gpu_accel()) {
                         Clip clp(*producer);
                         Mlt::Producer *glProd = clp.softClone(ClipController::getPassPropertiesList());
                         Mlt::Filter scaler(*m_binController->profile(), "swscale");
                         Mlt::Filter converter(*m_binController->profile(), "avcolor_space");
                         glProd->attach(scaler);
                         glProd->attach(converter);
                         blankProfile->from_producer(*glProd);
                         delete glProd;
                     }
                     else {
                         blankProfile->from_producer(*producer);
                     }
                     MltVideoProfile clipProfile = ProfilesDialog::getVideoProfile(*blankProfile);
                     MltVideoProfile projectProfile = ProfilesDialog::getVideoProfile(*m_binController->profile());
                     clipProfile.adjustWidth();
                     if (clipProfile != projectProfile) {
                         // Profiles do not match, propose profile adjustment
                         //delete producer;
                         delete blankProfile;
                         //m_processingClipId.removeAll(info.clipId);
                         info.xml.removeAttribute(QStringLiteral("checkProfile"));
                         emit switchProfile(clipProfile, info.clipId, info.xml);
                     } else if (KdenliveSettings::default_profile().isEmpty()) {
                         // Confirm default project format
                         KdenliveSettings::setDefault_profile(KdenliveSettings::current_profile());
                     }
                 }
             }
         }
         if (producer == nullptr || producer->is_blank() || !producer->is_valid()) {
             qCDebug(KDENLIVE_LOG) << " / / / / / / / / ERROR / / / / // CANNOT LOAD PRODUCER: " << path;
             m_processingClipId.removeAll(info.clipId);
             if (proxyProducer) {
                 // Proxy file is corrupted
                 emit removeInvalidProxy(info.clipId, false);
             } else {
                 emit removeInvalidClip(info.clipId, info.replaceProducer);
             }
             delete producer;
             continue;
         }
         // Pass useful properties
         processProducerProperties(producer, info.xml);
         QString clipName = ProjectClip::getXmlProperty(info.xml, QStringLiteral("kdenlive:clipname"));
         if (!clipName.isEmpty()) {
             producer->set("kdenlive:clipname", clipName.toUtf8().constData());
         }
         QString groupId = ProjectClip::getXmlProperty(info.xml, QStringLiteral("kdenlive:folderid"));
         if (!groupId.isEmpty()) {
             producer->set("kdenlive:folderid", groupId.toUtf8().constData());
         }
 
         if (proxyProducer && info.xml.hasAttribute(QStringLiteral("proxy_out"))) {
             producer->set("length", info.xml.attribute(QStringLiteral("proxy_out")).toInt() + 1);
             producer->set("out", info.xml.attribute(QStringLiteral("proxy_out")).toInt());
             if (producer->get_out() != info.xml.attribute(QStringLiteral("proxy_out")).toInt()) {
                 // Proxy file length is different than original clip length, this will corrupt project so disable this proxy clip
                 qCDebug(KDENLIVE_LOG) << "/ // PROXY LENGTH MISMATCH, DELETE PRODUCER";
                 m_processingClipId.removeAll(info.clipId);
                 emit removeInvalidProxy(info.clipId, true);
                 delete producer;
                 continue;
             }
         }
         //TODO: handle forced properties
         /*if (info.xml.hasAttribute("force_aspect_ratio")) {
             double aspect = info.xml.attribute("force_aspect_ratio").toDouble();
             if (aspect > 0) producer->set("force_aspect_ratio", aspect);
         }
 
         if (info.xml.hasAttribute("force_aspect_num") && info.xml.hasAttribute("force_aspect_den")) {
             int width = info.xml.attribute("frame_size").section('x', 0, 0).toInt();
             int height = info.xml.attribute("frame_size").section('x', 1, 1).toInt();
             int aspectNumerator = info.xml.attribute("force_aspect_num").toInt();
             int aspectDenominator = info.xml.attribute("force_aspect_den").toInt();
             if (aspectDenominator != 0 && width != 0)
                 producer->set("force_aspect_ratio", double(height) * aspectNumerator / aspectDenominator / width);
         }
 
         if (info.xml.hasAttribute("force_fps")) {
             double fps = info.xml.attribute("force_fps").toDouble();
             if (fps > 0) producer->set("force_fps", fps);
         }
 
         if (info.xml.hasAttribute("force_progressive")) {
             bool ok;
             int progressive = info.xml.attribute("force_progressive").toInt(&ok);
             if (ok) producer->set("force_progressive", progressive);
         }
         if (info.xml.hasAttribute("force_tff")) {
             bool ok;
             int fieldOrder = info.xml.attribute("force_tff").toInt(&ok);
             if (ok) producer->set("force_tff", fieldOrder);
         }
         if (info.xml.hasAttribute("threads")) {
             int threads = info.xml.attribute("threads").toInt();
             if (threads != 1) producer->set("threads", threads);
         }
         if (info.xml.hasAttribute("video_index")) {
             int vindex = info.xml.attribute("video_index").toInt();
             if (vindex != 0) producer->set("video_index", vindex);
         }
         if (info.xml.hasAttribute("audio_index")) {
             int aindex = info.xml.attribute("audio_index").toInt();
             if (aindex != 0) producer->set("audio_index", aindex);
         }
         if (info.xml.hasAttribute("force_colorspace")) {
             int colorspace = info.xml.attribute("force_colorspace").toInt();
             if (colorspace != 0) producer->set("force_colorspace", colorspace);
         }
         if (info.xml.hasAttribute("full_luma")) {
             int full_luma = info.xml.attribute("full_luma").toInt();
             if (full_luma != 0) producer->set("set.force_full_luma", full_luma);
         }*/
 
         int clipOut = 0;
         int duration = 0;
         if (info.xml.hasAttribute(QStringLiteral("out"))) {
             clipOut = info.xml.attribute(QStringLiteral("out")).toInt();
         }
         // setup length here as otherwise default length (currently 15000 frames in MLT) will be taken even if outpoint is larger
         if (type == Color || type == Text || type == TextTemplate || type == QText || type == Image || type == SlideShow) {
             int length;
             if (info.xml.hasAttribute(QStringLiteral("length"))) {
                 length = info.xml.attribute(QStringLiteral("length")).toInt();
                 clipOut = qMax(1, length - 1);
             } else {
                 length = EffectsList::property(info.xml, QStringLiteral("length")).toInt();
                 clipOut -= info.xml.attribute(QStringLiteral("in")).toInt();
                 if (length < clipOut) {
                     length = clipOut == 1 ? 1 : clipOut + 1;
                 }
             }
             // Pass duration if it was forced
             if (info.xml.hasAttribute(QStringLiteral("duration"))) {
                 duration = info.xml.attribute(QStringLiteral("duration")).toInt();
                 if (length < duration) {
                     length = duration;
                     if (clipOut > 0) {
                         clipOut = length - 1;
                     }
                 }
             }
             if (duration == 0) {
                 duration = length;
             }
             producer->set("length", length);
             int kdenlive_duration = EffectsList::property(info.xml, QStringLiteral("kdenlive:duration")).toInt();
             producer->set("kdenlive:duration", kdenlive_duration > 0 ? kdenlive_duration : length);
         }
         if (clipOut > 0) {
             producer->set_in_and_out(info.xml.attribute(QStringLiteral("in")).toInt(), clipOut);
         }
 
         if (info.xml.hasAttribute(QStringLiteral("templatetext"))) {
             producer->set("templatetext", info.xml.attribute(QStringLiteral("templatetext")).toUtf8().constData());
         }
 
         int fullWidth = info.imageHeight * m_binController->profile()->dar() + 0.5;
         int frameNumber = ProjectClip::getXmlProperty(info.xml, QStringLiteral("kdenlive:thumbnailFrame"), QStringLiteral("-1")).toInt();
 
         if ((!info.replaceProducer && !EffectsList::property(info.xml, QStringLiteral("kdenlive:file_hash")).isEmpty()) || proxyProducer) {
             // Clip  already has all properties
             // We want to replace an existing producer. We MUST NOT set the producer's id property until
             // the old one has been removed.
             if (proxyProducer) {
                 // Recreate clip thumb
                 Mlt::Frame *frame = nullptr;
                 QImage img;
                 if (KdenliveSettings::gpu_accel()) {
                     Clip clp(*producer);
                     Mlt::Producer *glProd = clp.softClone(ClipController::getPassPropertiesList());
                     if (frameNumber > 0) {
                         glProd->seek(frameNumber);
                     }
                     Mlt::Filter scaler(*m_binController->profile(), "swscale");
                     Mlt::Filter converter(*m_binController->profile(), "avcolor_space");
                     glProd->attach(scaler);
                     glProd->attach(converter);
                     frame = glProd->get_frame();
                     if (frame && frame->is_valid()) {
                         img = KThumb::getFrame(frame, fullWidth, info.imageHeight);
                         emit replyGetImage(info.clipId, img);
                     }
                     delete glProd;
                 } else {
                     if (frameNumber > 0) {
                         producer->seek(frameNumber);
                     }
                     frame = producer->get_frame();
                     if (frame && frame->is_valid()) {
                         img = KThumb::getFrame(frame, fullWidth, info.imageHeight, forceThumbScale);
                         emit replyGetImage(info.clipId, img);
                     }
                 }
                 if (frame) {
                     delete frame;
                 }
             }
             // replace clip
             m_processingClipId.removeAll(info.clipId);
 
             // Store original properties in a kdenlive: prefixed format
             QDomNodeList props = info.xml.elementsByTagName(QStringLiteral("property"));
             for (int i = 0; i < props.count(); ++i) {
                 QDomElement e = props.at(i).toElement();
                 QString name = e.attribute(QStringLiteral("name"));
                 if (name.startsWith(QLatin1String("meta."))) {
                     name.prepend(QStringLiteral("kdenlive:"));
                     producer->set(name.toUtf8().constData(), e.firstChild().nodeValue().toUtf8().constData());
                 }
             }
             m_binController->replaceProducer(info.clipId, *producer);
             emit gotFileProperties(info, nullptr);
             continue;
         }
         // We are not replacing an existing producer, so set the id
         producer->set("id", info.clipId.toUtf8().constData());
         stringMap filePropertyMap;
         stringMap metadataPropertyMap;
         char property[200];
 
         if (frameNumber > 0) {
             producer->seek(frameNumber);
         }
         duration = duration > 0 ? duration : producer->get_playtime();
         //qCDebug(KDENLIVE_LOG) << "///////  PRODUCER: " << url.path() << " IS: " << producer->get_playtime();
         if (type == SlideShow) {
             int ttl = EffectsList::property(info.xml, QStringLiteral("ttl")).toInt();
             QString anim = EffectsList::property(info.xml, QStringLiteral("animation"));
             if (!anim.isEmpty()) {
                 Mlt::Filter *filter = new Mlt::Filter(*m_binController->profile(), "affine");
                 if (filter && filter->is_valid()) {
                     int cycle = ttl;
                     QString geometry = SlideshowClip::animationToGeometry(anim, cycle);
                     if (!geometry.isEmpty()) {
                         if (anim.contains(QStringLiteral("low-pass"))) {
                             Mlt::Filter *blur = new Mlt::Filter(*m_binController->profile(), "boxblur");
                             if (blur && blur->is_valid()) {
                                 producer->attach(*blur);
                             }
                         }
                         filter->set("transition.geometry", geometry.toUtf8().data());
                         filter->set("transition.cycle", cycle);
                         producer->attach(*filter);
                     }
                 }
             }
             QString fade = EffectsList::property(info.xml, QStringLiteral("fade"));
             if (fade == QLatin1String("1")) {
                 // user wants a fade effect to slideshow
                 Mlt::Filter *filter = new Mlt::Filter(*m_binController->profile(), "luma");
                 if (filter && filter->is_valid()) {
                     if (ttl) {
                         filter->set("cycle", ttl);
                     }
                     QString luma_duration = EffectsList::property(info.xml, QStringLiteral("luma_duration"));
                     QString luma_file = EffectsList::property(info.xml, QStringLiteral("luma_file"));
                     if (!luma_duration.isEmpty()) {
                         filter->set("duration", luma_duration.toInt());
                     }
                     if (!luma_file.isEmpty()) {
                         filter->set("luma.resource", luma_file.toUtf8().constData());
                         QString softness = EffectsList::property(info.xml, QStringLiteral("softness"));
                         if (!softness.isEmpty()) {
                             int soft = softness.toInt();
                             filter->set("luma.softness", (double) soft / 100.0);
                         }
                     }
                     producer->attach(*filter);
                 }
             }
             QString crop = EffectsList::property(info.xml, QStringLiteral("crop"));
             if (crop == QLatin1String("1")) {
                 // user wants to center crop the slides
                 Mlt::Filter *filter = new Mlt::Filter(*m_binController->profile(), "crop");
                 if (filter && filter->is_valid()) {
                     filter->set("center", 1);
                     producer->attach(*filter);
                 }
             }
         }
         int vindex = -1;
         const QString mltService = producer->get("mlt_service");
         if (mltService == QLatin1String("xml") || mltService == QLatin1String("consumer")) {
             // MLT playlist, create producer with blank profile to get real profile info
             if (path.startsWith(QLatin1String("consumer:"))) {
                 path = "xml:" + path.section(QLatin1Char(':'), 1);
             }
             Mlt::Profile original_profile;
             Mlt::Producer *tmpProd = new Mlt::Producer(original_profile, nullptr, path.toUtf8().constData());
             original_profile.set_explicit(true);
             filePropertyMap[QStringLiteral("progressive")] = QString::number(original_profile.progressive());
             filePropertyMap[QStringLiteral("colorspace")] = QString::number(original_profile.colorspace());
             filePropertyMap[QStringLiteral("fps")] = QString::number(original_profile.fps());
             filePropertyMap[QStringLiteral("aspect_ratio")] = QString::number(original_profile.sar());
             double originalFps = original_profile.fps();
             if (originalFps > 0 && originalFps != m_binController->profile()->fps()) {
                 // Warning, MLT detects an incorrect length in producer consumer when producer's fps != project's fps
                 //TODO: report bug to MLT
                 delete tmpProd;
                 tmpProd = new Mlt::Producer(original_profile, nullptr, path.toUtf8().constData());
                 int originalLength = tmpProd->get_length();
                 int fixedLength = (int)(originalLength * m_binController->profile()->fps() / originalFps);
                 producer->set("length", fixedLength);
                 producer->set("out", fixedLength - 1);
             }
             delete tmpProd;
         } else if (mltService == QLatin1String("avformat")) {
             // Get frame rate
             vindex = producer->get_int("video_index");
             // List streams
             int streams = producer->get_int("meta.media.nb_streams");
             QList<int> audio_list;
             QList<int> video_list;
             for (int i = 0; i < streams; ++i) {
                 QByteArray propertyName = QStringLiteral("meta.media.%1.stream.type").arg(i).toLocal8Bit();
                 QString type = producer->get(propertyName.data());
                 if (type == QLatin1String("audio")) {
                     audio_list.append(i);
                 } else if (type == QLatin1String("video")) {
                     video_list.append(i);
                 }
             }
-
-            if (!info.xml.hasAttribute(QStringLiteral("video_index")) && video_list.count() > 1) {
+            int bypass = EffectsList::property(info.xml, QStringLiteral("bypassDuplicate")).toInt();
+            if (!info.xml.hasAttribute(QStringLiteral("video_index")) && video_list.count() > 1 && bypass != 1) {
                 // Clip has more than one video stream, ask which one should be used
                 QMap<QString, QString> data;
                 if (info.xml.hasAttribute(QStringLiteral("group"))) {
                     data.insert(QStringLiteral("group"), info.xml.attribute(QStringLiteral("group")));
                 }
                 if (info.xml.hasAttribute(QStringLiteral("groupId"))) {
                     data.insert(QStringLiteral("groupId"), info.xml.attribute(QStringLiteral("groupId")));
                 }
                 emit multiStreamFound(path, audio_list, video_list, data);
                 // Force video index so that when reloading the clip we don't ask again for other streams
                 filePropertyMap[QStringLiteral("video_index")] = QString::number(vindex);
             }
 
             if (vindex > -1) {
                 snprintf(property, sizeof(property), "meta.media.%d.stream.frame_rate", vindex);
                 double fps = producer->get_double(property);
                 if (fps > 0) {
                     filePropertyMap[QStringLiteral("fps")] = locale.toString(fps);
                 }
             }
 
             if (!filePropertyMap.contains(QStringLiteral("fps"))) {
                 if (producer->get_double("meta.media.frame_rate_den") > 0) {
                     filePropertyMap[QStringLiteral("fps")] = locale.toString(producer->get_double("meta.media.frame_rate_num") / producer->get_double("meta.media.frame_rate_den"));
                 } else {
                     double fps = producer->get_double("source_fps");
                     if (fps > 0) {
                         filePropertyMap[QStringLiteral("fps")] = locale.toString(fps);
                     }
                 }
             }
         }
         if (!filePropertyMap.contains(QStringLiteral("fps")) && type == Unknown) {
             // something wrong, maybe audio file with embedded image
             QMimeDatabase db;
             QString mime = db.mimeTypeForFile(path).name();
             if (mime.startsWith(QLatin1String("audio"))) {
                 producer->set("video_index", -1);
                 vindex = -1;
             }
         }
         Mlt::Frame *frame = producer->get_frame();
         if (frame && frame->is_valid()) {
             if (!mltService.contains(QStringLiteral("avformat"))) {
                 // Fetch thumbnail
                 QImage img;
                 if (KdenliveSettings::gpu_accel()) {
                     delete frame;
                     Clip clp(*producer);
                     Mlt::Producer *glProd = clp.softClone(ClipController::getPassPropertiesList());
                     Mlt::Filter scaler(*m_binController->profile(), "swscale");
                     Mlt::Filter converter(*m_binController->profile(), "avcolor_space");
                     glProd->attach(scaler);
                     glProd->attach(converter);
                     frame = glProd->get_frame();
                     img = KThumb::getFrame(frame, fullWidth, info.imageHeight);
                     delete glProd;
                 } else {
                     img = KThumb::getFrame(frame, fullWidth, info.imageHeight, forceThumbScale);
                 }
                 emit replyGetImage(info.clipId, img);
             } else {
                 filePropertyMap[QStringLiteral("frame_size")] = QString::number(frame->get_int("width")) + QLatin1Char('x') + QString::number(frame->get_int("height"));
                 int af = frame->get_int("audio_frequency");
                 int ac = frame->get_int("audio_channels");
                 // keep for compatibility with MLT <= 0.8.6
                 if (af == 0) {
                     af = frame->get_int("frequency");
                 }
                 if (ac == 0) {
                     ac = frame->get_int("channels");
                 }
                 if (af > 0) {
                     filePropertyMap[QStringLiteral("frequency")] = QString::number(af);
                 }
                 if (ac > 0) {
                     filePropertyMap[QStringLiteral("channels")] = QString::number(ac);
                 }
                 if (!filePropertyMap.contains(QStringLiteral("aspect_ratio"))) {
                     filePropertyMap[QStringLiteral("aspect_ratio")] = frame->get("aspect_ratio");
                 }
 
                 if (frame->get_int("test_image") == 0 && vindex != -1) {
                     if (mltService == QLatin1String("xml") || mltService == QLatin1String("consumer")) {
                         filePropertyMap[QStringLiteral("type")] = QStringLiteral("playlist");
                         metadataPropertyMap[QStringLiteral("comment")] = QString::fromUtf8(producer->get("title"));
                     } else if (!mlt_frame_is_test_audio(frame->get_frame())) {
                         filePropertyMap[QStringLiteral("type")] = QStringLiteral("av");
                     } else {
                         filePropertyMap[QStringLiteral("type")] = QStringLiteral("video");
                     }
                     // Check if we are using GPU accel, then we need to use alternate producer
                     Mlt::Producer *tmpProd = nullptr;
                     if (KdenliveSettings::gpu_accel()) {
                         delete frame;
                         Clip clp(*producer);
                         tmpProd = clp.softClone(ClipController::getPassPropertiesList());
                         Mlt::Filter scaler(*m_binController->profile(), "swscale");
                         Mlt::Filter converter(*m_binController->profile(), "avcolor_space");
                         tmpProd->attach(scaler);
                         tmpProd->attach(converter);
                         frame = tmpProd->get_frame();
                     } else {
                         tmpProd = producer;
                     }
                     QImage img = KThumb::getFrame(frame, fullWidth, info.imageHeight, forceThumbScale);
                     if (frameNumber == -1) {
                         // No user specipied frame, look for best one
                         int variance = KThumb::imageVariance(img);
                         if (variance < 6) {
                             // Thumbnail is not interesting (for example all black, seek to fetch better thumb
                             delete frame;
                             frameNumber =  duration > 100 ? 100 : duration / 2;
                             tmpProd->seek(frameNumber);
                             frame = tmpProd->get_frame();
                             img = KThumb::getFrame(frame, fullWidth, info.imageHeight, forceThumbScale);
                         }
                     }
                     if (KdenliveSettings::gpu_accel()) {
                         delete tmpProd;
                     }
                     if (frameNumber > -1) {
                         filePropertyMap[QStringLiteral("thumbnailFrame")] = QString::number(frameNumber);
                     }
                     emit replyGetImage(info.clipId, img);
                 } else if (frame->get_int("test_audio") == 0) {
                     filePropertyMap[QStringLiteral("type")] = QStringLiteral("audio");
                 }
                 delete frame;
 
                 if (vindex > -1) {
                     /*if (context->duration == AV_NOPTS_VALUE) {
                     //qCDebug(KDENLIVE_LOG) << " / / / / / / / /ERROR / / / CLIP HAS UNKNOWN DURATION";
                     emit removeInvalidClip(clipId);
                     delete producer;
                     return;
                     }*/
                     // Get the video_index
                     int video_max = 0;
                     int default_audio = producer->get_int("audio_index");
                     int audio_max = 0;
 
                     int scan = producer->get_int("meta.media.progressive");
                     filePropertyMap[QStringLiteral("progressive")] = QString::number(scan);
 
                     // Find maximum stream index values
                     for (int ix = 0; ix < producer->get_int("meta.media.nb_streams"); ++ix) {
                         snprintf(property, sizeof(property), "meta.media.%d.stream.type", ix);
                         QString type = producer->get(property);
                         if (type == QLatin1String("video")) {
                             video_max = ix;
                         } else if (type == QLatin1String("audio")) {
                             audio_max = ix;
                         }
                     }
                     filePropertyMap[QStringLiteral("default_video")] = QString::number(vindex);
                     filePropertyMap[QStringLiteral("video_max")] = QString::number(video_max);
                     filePropertyMap[QStringLiteral("default_audio")] = QString::number(default_audio);
                     filePropertyMap[QStringLiteral("audio_max")] = QString::number(audio_max);
 
                     snprintf(property, sizeof(property), "meta.media.%d.codec.long_name", vindex);
                     if (producer->get(property)) {
                         filePropertyMap[QStringLiteral("videocodec")] = producer->get(property);
                     }
                     snprintf(property, sizeof(property), "meta.media.%d.codec.name", vindex);
                     if (producer->get(property)) {
                         filePropertyMap[QStringLiteral("videocodecid")] = producer->get(property);
                     }
                     QString query;
                     query = QStringLiteral("meta.media.%1.codec.pix_fmt").arg(vindex);
                     filePropertyMap[QStringLiteral("pix_fmt")] = producer->get(query.toUtf8().constData());
                     filePropertyMap[QStringLiteral("colorspace")] = producer->get("meta.media.colorspace");
 
                 } else {
                     qCDebug(KDENLIVE_LOG) << " / / / / /WARNING, VIDEO CONTEXT IS nullptr!!!!!!!!!!!!!!";
                 }
                 if (producer->get_int("audio_index") > -1) {
                     // Get the audio_index
                     int index = producer->get_int("audio_index");
                     snprintf(property, sizeof(property), "meta.media.%d.codec.long_name", index);
                     if (producer->get(property)) {
                         filePropertyMap[QStringLiteral("audiocodec")] = producer->get(property);
                     } else {
                         snprintf(property, sizeof(property), "meta.media.%d.codec.name", index);
                         if (producer->get(property)) {
                             filePropertyMap[QStringLiteral("audiocodec")] = producer->get(property);
                         }
                     }
                 }
                 producer->set("mlt_service", "avformat-novalidate");
             }
         }
         // metadata
         Mlt::Properties metadata;
         metadata.pass_values(*producer, "meta.attr.");
         int count = metadata.count();
         for (int i = 0; i < count; i ++) {
             QString name = metadata.get_name(i);
             QString value = QString::fromUtf8(metadata.get(i));
             if (name.endsWith(QLatin1String(".markup")) && !value.isEmpty()) {
                 metadataPropertyMap[ name.section(QLatin1Char('.'), 0, -2)] = value;
             }
         }
         producer->seek(0);
         if (m_binController->hasClip(info.clipId)) {
             // If controller already exists, we just want to update the producer
             m_binController->replaceProducer(info.clipId, *producer);
             emit gotFileProperties(info, nullptr);
         } else {
             // Create the controller
             ClipController *controller = new ClipController(m_binController, *producer);
             m_binController->addClipToBin(info.clipId, controller);
             emit gotFileProperties(info, controller);
         }
         m_processingClipId.removeAll(info.clipId);
     }
 }
 
 void ProducerQueue::abortOperations()
 {
     m_infoMutex.lock();
     m_requestList.clear();
     m_infoMutex.unlock();
     m_infoThread.waitForFinished();
 }
 
 ClipType ProducerQueue::getTypeForService(const QString &id, const QString &path) const
 {
     if (id.isEmpty()) {
         QString ext = path.section(QLatin1Char('.'), -1);
         if (ext == QLatin1String("mlt") || ext == QLatin1String("kdenlive")) {
             return Playlist;
         }
         return Unknown;
     }
     if (id == QLatin1String("color") || id == QLatin1String("colour")) {
         return Color;
     }
     if (id == QLatin1String("kdenlivetitle")) {
         return Text;
     }
     if (id == QLatin1String("qtext")) {
         return QText;
     }
     if (id == QLatin1String("xml") || id == QLatin1String("consumer")) {
         return Playlist;
     }
     if (id == QLatin1String("webvfx")) {
         return WebVfx;
     }
     return Unknown;
 }
 
 void ProducerQueue::processProducerProperties(Mlt::Producer *prod, const QDomElement &xml)
 {
     //TODO: there is some duplication with clipcontroller > updateproducer that also copies properties
     QString value;
     QStringList internalProperties;
     internalProperties << QStringLiteral("bypassDuplicate") << QStringLiteral("resource") << QStringLiteral("mlt_service") << QStringLiteral("audio_index") << QStringLiteral("video_index") << QStringLiteral("mlt_type");
     QDomNodeList props;
 
     if (xml.tagName() == QLatin1String("producer")) {
         props = xml.childNodes();
     } else {
         props = xml.firstChildElement(QStringLiteral("producer")).childNodes();
     }
     for (int i = 0; i < props.count(); ++i) {
         if (props.at(i).toElement().tagName() != QStringLiteral("property")) {
             continue;
         }
         QString propertyName = props.at(i).toElement().attribute(QStringLiteral("name"));
         if (!internalProperties.contains(propertyName) && !propertyName.startsWith(QLatin1Char('_'))) {
             value = props.at(i).firstChild().nodeValue();
             if (propertyName.startsWith(QLatin1String("kdenlive-force."))) {
                 // this is a special forced property, pass it
                 propertyName.remove(0, 15);
             }
             prod->set(propertyName.toUtf8().constData(), value.toUtf8().constData());
         }
     }
 }
 
 void ProducerQueue::slotMultiStreamProducerFound(const QString &path, const QList<int> &audio_list, const QList<int> &video_list, stringMap data)
 {
     if (KdenliveSettings::automultistreams()) {
         for (int i = 1; i < video_list.count(); ++i) {
             int vindex = video_list.at(i);
             int aindex = 0;
             if (i <= audio_list.count() - 1) {
                 aindex = audio_list.at(i);
             }
             data.insert(QStringLiteral("video_index"), QString::number(vindex));
             data.insert(QStringLiteral("audio_index"), QString::number(aindex));
             data.insert(QStringLiteral("bypassDuplicate"), QStringLiteral("1"));
             emit addClip(path, data);
         }
         return;
     }
 
     int width = 60.0 * m_binController->profile()->dar();
     if (width % 2 == 1) {
         width++;
     }
 
     QPointer<QDialog> dialog = new QDialog(qApp->activeWindow());
     dialog->setWindowTitle(QStringLiteral("Multi Stream Clip"));
     QDialogButtonBox *buttonBox = new QDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel);
     QWidget *mainWidget = new QWidget(dialog);
     QVBoxLayout *mainLayout = new QVBoxLayout;
     dialog->setLayout(mainLayout);
     mainLayout->addWidget(mainWidget);
     QPushButton *okButton = buttonBox->button(QDialogButtonBox::Ok);
     okButton->setDefault(true);
     okButton->setShortcut(Qt::CTRL | Qt::Key_Return);
     dialog->connect(buttonBox, &QDialogButtonBox::accepted, dialog.data(), &QDialog::accept);
     dialog->connect(buttonBox, &QDialogButtonBox::rejected, dialog.data(), &QDialog::reject);
     okButton->setText(i18n("Import selected clips"));
 
     QLabel *lab1 = new QLabel(i18n("Additional streams for clip\n %1", path), mainWidget);
     mainLayout->addWidget(lab1);
     QList<QGroupBox *> groupList;
     QList<KComboBox *> comboList;
     // We start loading the list at 1, video index 0 should already be loaded
     for (int j = 1; j < video_list.count(); ++j) {
         Mlt::Producer multiprod(* m_binController->profile(), path.toUtf8().constData());
         multiprod.set("video_index", video_list.at(j));
         QImage thumb = KThumb::getFrame(&multiprod, 0, width, 60);
         QGroupBox *streamFrame = new QGroupBox(i18n("Video stream %1", video_list.at(j)), mainWidget);
         mainLayout->addWidget(streamFrame);
         streamFrame->setProperty("vindex", video_list.at(j));
         groupList << streamFrame;
         streamFrame->setCheckable(true);
         streamFrame->setChecked(true);
         QVBoxLayout *vh = new QVBoxLayout(streamFrame);
         QLabel *iconLabel = new QLabel(mainWidget);
         mainLayout->addWidget(iconLabel);
         iconLabel->setPixmap(QPixmap::fromImage(thumb));
         vh->addWidget(iconLabel);
         if (audio_list.count() > 1) {
             KComboBox *cb = new KComboBox(mainWidget);
             mainLayout->addWidget(cb);
             for (int k = 0; k < audio_list.count(); ++k) {
                 cb->addItem(i18n("Audio stream %1", audio_list.at(k)), audio_list.at(k));
             }
             comboList << cb;
             cb->setCurrentIndex(qMin(j, audio_list.count() - 1));
             vh->addWidget(cb);
         }
         mainLayout->addWidget(streamFrame);
     }
     mainLayout->addWidget(buttonBox);
     if (dialog->exec() == QDialog::Accepted) {
         // import selected streams
         for (int i = 0; i < groupList.count(); ++i) {
             if (groupList.at(i)->isChecked()) {
                 int vindex = groupList.at(i)->property("vindex").toInt();
-                int aindex = comboList.at(i)->itemData(comboList.at(i)->currentIndex()).toInt();
+                int ax = qMin(i, comboList.size() - 1);
+                int aindex = -1;
+                if (ax >= 0) {
+                    // only check audio index if we have several audio streams
+                    aindex = comboList.at(ax)->itemData(comboList.at(ax)->currentIndex()).toInt();
+                }
                 data.insert(QStringLiteral("kdenlive-force.video_index"), QString::number(vindex));
                 data.insert(QStringLiteral("kdenlive-force.audio_index"), QString::number(aindex));
                 data.insert(QStringLiteral("bypassDuplicate"), QStringLiteral("1"));
                 emit addClip(path, data);
             }
         }
     }
     delete dialog;
 }
diff --git a/src/profiles/tree/profiletreemodel.cpp b/src/profiles/tree/profiletreemodel.cpp
index 47a580703..a793a2ab9 100644
--- a/src/profiles/tree/profiletreemodel.cpp
+++ b/src/profiles/tree/profiletreemodel.cpp
@@ -1,321 +1,322 @@
 /***************************************************************************
  *   Copyright (C) 2017 by Nicolas Carion                                  *
  *   This file is part of Kdenlive. See www.kdenlive.org.                  *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU General Public License as published by  *
  *   the Free Software Foundation; either version 2 of the License, or     *
  *   (at your option) version 3 or any later version accepted by the       *
  *   membership of KDE e.V. (or its successor approved  by the membership  *
  *   of KDE e.V.), which shall act as a proxy defined in Section 14 of     *
  *   version 3 of the license.                                             *
  *                                                                         *
  *   This program is distributed in the hope that it will be useful,       *
  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  *   GNU General Public License for more details.                          *
  *                                                                         *
  *   You should have received a copy of the GNU General Public License     *
  *   along with this program.  If not, see <http://www.gnu.org/licenses/>. *
  ***************************************************************************/
 
 #include "profiletreemodel.hpp"
 #include "utils/KoIconUtils.h"
 #include "../profilerepository.hpp"
 #include "../profilemodel.hpp"
 #include <vector>
+#include <functional>
 #include <QVector>
 #include <array>
 #include <KLocalizedString>
 
 
 class ProfileItem
 {
 public:
     explicit ProfileItem(const QList<QVariant> &data, ProfileItem *parentItem = nullptr);
     ~ProfileItem();
 
     ProfileItem* appendChild(const QList<QVariant> &data);
 
     ProfileItem *child(int row);
     int childCount() const;
     int columnCount() const;
     QVariant data(int column) const;
     int row() const;
     ProfileItem *parentItem();
     int depth() const;
 
 private:
     QList<ProfileItem*> m_childItems;
     QList<QVariant> m_itemData;
     ProfileItem *m_parentItem;
     int m_depth;
 };
 ProfileItem::ProfileItem(const QList<QVariant> &data, ProfileItem *parent)
 {
     m_parentItem = parent;
     m_itemData = data;
     m_depth = 0;
 }
 
 ProfileItem::~ProfileItem()
 {
     qDeleteAll(m_childItems);
 }
 
 ProfileItem* ProfileItem::appendChild(const QList<QVariant> &data)
 {
     ProfileItem *child = new ProfileItem(data, this);
     child->m_depth = m_depth + 1;
     m_childItems.append(child);
     return child;
 }
 
 ProfileItem *ProfileItem::child(int row)
 {
     return m_childItems.value(row);
 }
 
 int ProfileItem::childCount() const
 {
     return m_childItems.count();
 }
 
 int ProfileItem::columnCount() const
 {
     return m_itemData.count();
 }
 
 QVariant ProfileItem::data(int column) const
 {
     return m_itemData.value(column);
 }
 
 ProfileItem *ProfileItem::parentItem()
 {
     return m_parentItem;
 }
 
 int ProfileItem::row() const
 {
     if (m_parentItem)
         return m_parentItem->m_childItems.indexOf(const_cast<ProfileItem*>(this));
 
     return 0;
 }
 
 int ProfileItem::depth() const
 {
     return m_depth;
 }
 
 
 ProfileTreeModel::ProfileTreeModel(QObject *parent)
     : QAbstractItemModel(parent)
 {
     QList<QVariant> rootData;
     rootData << "Description" << "Path" << "Height" << "Width" << "display_aspect_num"
              << "display_aspect_den" <<  "sample_aspect_ratio" << "fps" << "colorspace";
     rootItem = new ProfileItem(rootData);
 
     ProfileRepository::get()->refresh();
     QVector<QPair<QString, QString> > profiles = ProfileRepository::get()->getAllProfiles();
 
     constexpr size_t nbCrit = 3; //number of criterion we check for profile classification
 
     //helper lambda that creates a profile category with the given name
     auto createCat = [&](const QString& name){
         return rootItem->appendChild(QList<QVariant>{name});
     };
 
     //We define the filters as a vector of pairs. The first element correspond to the tree item holding matching profiles, and the array correspond to the filter itself
     std::vector<std::pair<ProfileItem*, std::array<QVariant, nbCrit> > > filters{
         {createCat(i18n("5K (Wide 2160)")), {{5120, 2160, -1}}},
         {createCat(i18n("4K UHD 2160")), {{3840, 2160, -1}}},
         {createCat(i18n("4K DCI 2160")), {{4096, 2160, -1}}},
         {createCat(i18n("2.5K QHD 1440")), {{-1, 1440, -1}}},
         {createCat(i18n("Full HD 1080")), {{1920, 1080, -1}}},
         {createCat(i18n("HD 720")), {{-1, 720, -1}}},
         {createCat(i18n("SD/DVD")), {{720, QVariant::fromValue(QPair<int,int>{480, 576}), 4}}},
         {createCat(i18n("SD/DVD Widescreen")), {{720, QVariant::fromValue(QPair<int,int>{480, 576}), 16}}},
     };
 
     auto customCat = createCat(i18n("Custom"));
 
     //We define lambdas that controls how a given field should be filtered
     std::array<std::function<bool(QVariant, std::unique_ptr<ProfileModel>&)>, nbCrit> filtLambdas;
     filtLambdas[0] = [](QVariant width, std::unique_ptr<ProfileModel>& ptr){return width==-1 || ptr->width() == width;};
     filtLambdas[1] = [](QVariant height, std::unique_ptr<ProfileModel>& ptr){
         if (height.canConvert<int>()) {
             return height.toInt()==-1 || ptr->height() == height.toInt();
         } else {
             QPair<int, int> valid_values = height.value<QPair<int, int>>();
             return ptr->height() == valid_values.first || ptr->height() == valid_values.second;
         }};
     filtLambdas[2] = [](QVariant display_aspect_num, std::unique_ptr<ProfileModel>& ptr){return display_aspect_num==-1 || ptr->display_aspect_num() == display_aspect_num;};
 
 
     for (const auto & profile : profiles) {
         bool foundMatch = false;
         //we get a pointer to the profilemodel
         std::unique_ptr<ProfileModel> & ptr = ProfileRepository::get()->getProfile(profile.second);
         // we create the data list corresponding to this profile
         QList<QVariant> data;
         data << profile.first << profile.second << ptr->height() << ptr->width()
              << ptr->display_aspect_num() << ptr->display_aspect_den() << ptr->sar()
              << ptr->fps() << ProfileRepository::getColorspaceDescription(ptr->colorspace());
         for (const auto & filter : filters) {
             bool matching = true;
             for (size_t i = 0; i < nbCrit && matching; ++i) {
                 matching = filtLambdas[i](filter.second[i], ptr);
             }
             if (matching) {
                 foundMatch = true;
                 filter.first->appendChild(data);
                 break;
             }
         }
         if (!foundMatch) {
             // no filter matched, we default to custom
             customCat->appendChild(data);
         }
     }
 }
 
 ProfileTreeModel::~ProfileTreeModel()
 {
     delete rootItem;
 }
 
 int ProfileTreeModel::columnCount(const QModelIndex &parent) const
 {
     if (parent.isValid())
         return static_cast<ProfileItem*>(parent.internalPointer())->columnCount();
     else
         return rootItem->columnCount();
 }
 
 QVariant ProfileTreeModel::data(const QModelIndex &index, int role) const
 {
     if (!index.isValid()) {
         return QVariant();
     }
 
     ProfileItem *item = static_cast<ProfileItem*>(index.internalPointer());
     if(role == Qt::DecorationRole) {
         if (item->depth() == 1) {
             return KoIconUtils::themedIcon(QStringLiteral("folder"));
         } else {
             return KoIconUtils::themedIcon(QStringLiteral("file"));
         }
     }
 
     if (role != Qt::DisplayRole) {
         return QVariant();
     }
     return item->data(index.column());
 }
 
 Qt::ItemFlags ProfileTreeModel::flags(const QModelIndex &index) const
 {
     const auto flags = QAbstractItemModel::flags(index);
 
     if (index.isValid()) {
         ProfileItem *item = static_cast<ProfileItem*>(index.internalPointer());
         if (item->depth() == 1) {
             return flags & ~Qt::ItemIsSelectable;
         }
     }
     return flags;
 }
 
 QVariant ProfileTreeModel::headerData(int section, Qt::Orientation orientation,
                                int role) const
 {
     if (orientation == Qt::Horizontal && role == Qt::DisplayRole)
         return rootItem->data(section);
 
     return QVariant();
 }
 
 QModelIndex ProfileTreeModel::index(int row, int column, const QModelIndex &parent)
             const
 {
     if (!hasIndex(row, column, parent))
         return QModelIndex();
 
     ProfileItem *parentItem;
 
     if (!parent.isValid())
         parentItem = rootItem;
     else
         parentItem = static_cast<ProfileItem*>(parent.internalPointer());
 
     ProfileItem *childItem = parentItem->child(row);
     if (childItem)
         return createIndex(row, column, childItem);
     else
         return QModelIndex();
 }
 
 QModelIndex ProfileTreeModel::parent(const QModelIndex &index) const
 {
     if (!index.isValid())
         return QModelIndex();
 
     ProfileItem *childItem = static_cast<ProfileItem*>(index.internalPointer());
     ProfileItem *parentItem = childItem->parentItem();
 
     if (parentItem == rootItem) {
         return QModelIndex();
     }
 
     return createIndex(parentItem->row(), 0, parentItem);
 }
 
 
 int ProfileTreeModel::rowCount(const QModelIndex &parent) const
 {
     ProfileItem *parentItem;
     if (parent.column() > 0)
         return 0;
 
     if (!parent.isValid())
         parentItem = rootItem;
     else
         parentItem = static_cast<ProfileItem*>(parent.internalPointer());
 
     return parentItem->childCount();
 }
 
 //static
 QString ProfileTreeModel::getProfile(const QModelIndex& index)
 {
     if (index.isValid()) {
         ProfileItem *item = static_cast<ProfileItem*>(index.internalPointer());
         if (item->depth() == 2) {
             return item->data(1).toString();
         }
     }
     return QString();
 }
 
 QModelIndex ProfileTreeModel::findProfile(const QString& profile)
 {
     // we iterate over categories
     for (int i = 0; i < rootItem->childCount(); ++i) {
         // we iterate over profiles of the category
         ProfileItem *category = rootItem->child(i);
         for (int j = 0; j < category->childCount(); ++j) {
             // we retrieve profile path
             ProfileItem* child = category->child(j);
             QString path = child->data(1).toString();
             if (path == profile) {
                 return createIndex(j, 0, child);
             }
         }
 
     }
     return QModelIndex();
 
 }
diff --git a/src/timeline/customtrackview.cpp b/src/timeline/customtrackview.cpp
index 230902afe..273fff9f1 100644
--- a/src/timeline/customtrackview.cpp
+++ b/src/timeline/customtrackview.cpp
@@ -1,9043 +1,9047 @@
 /***************************************************************************
  *   Copyright (C) 2007 by Jean-Baptiste Mardelle (jb@kdenlive.org)        *
  *                                                                         *
  *   This program is free software; you can redistribute it and/or modify  *
  *   it under the terms of the GNU General Public License as published by  *
  *   the Free Software Foundation; either version 2 of the License, or     *
  *   (at your option) any later version.                                   *
  *                                                                         *
  *   This program is distributed in the hope that it will be useful,       *
  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  *   GNU General Public License for more details.                          *
  *                                                                         *
  *   You should have received a copy of the GNU General Public License     *
  *   along with this program; if not, write to the                         *
  *   Free Software Foundation, Inc.,                                       *
  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
  ***************************************************************************/
 
 #include "customtrackview.h"
 #include "timeline.h"
 #include "track.h"
 #include "clipitem.h"
 #include "timelinecommands.h"
 #include "transition.h"
 #include "markerdialog.h"
 #include "clipdurationdialog.h"
 #include "abstractgroupitem.h"
 #include "spacerdialog.h"
 #include "trackdialog.h"
 #include "tracksconfigdialog.h"
 #include "mltcontroller/clipcontroller.h"
 #include "mltcontroller/effectscontroller.h"
 #include "definitions.h"
 #include "kdenlivesettings.h"
 #include "renderer.h"
 #include "bin/projectclip.h"
 #include "mainwindow.h"
 #include "transitionhandler.h"
 #include "project/clipmanager.h"
 #include "utils/KoIconUtils.h"
 #include "effectslist/initeffects.h"
 #include "effectstack/widgets/keyframeimport.h"
 #include "dialogs/profilesdialog.h"
 #include "managers/guidemanager.h"
 #include "managers/razormanager.h"
 #include "managers/selectmanager.h"
 #include "ui_keyframedialog_ui.h"
 #include "ui_addtrack_ui.h"
 #include "managers/trimmanager.h"
 #include "managers/spacermanager.h"
 #include "managers/movemanager.h"
 #include "managers/resizemanager.h"
 #include "lib/audio/audioEnvelope.h"
 #include "lib/audio/audioCorrelation.h"
 
 #include "kdenlive_debug.h"
 #include <klocalizedstring.h>
 #include <KMessageBox>
 #include <KRecentDirs>
 
 #include <QUrl>
 #include <QIcon>
 #include <QMouseEvent>
 #include <QGraphicsItem>
 #include <QScrollBar>
 #include <QApplication>
 #include <QMimeData>
 
 #include <QGraphicsDropShadowEffect>
 
 #define SEEK_INACTIVE (-1)
 //#define DEBUG
 
 bool sortGuidesList(const Guide *g1, const Guide *g2)
 {
     return (*g1).position() < (*g2).position();
 }
 
 CustomTrackView::CustomTrackView(KdenliveDoc *doc, Timeline *timeline, CustomTrackScene *projectscene, QWidget *parent) :
     QGraphicsView(projectscene, parent)
     , m_tracksHeight(KdenliveSettings::trackheight())
     , m_projectDuration(0)
     , m_cursorPos(0)
     , m_cursorOffset(0)
     , m_document(doc)
     , m_timeline(timeline)
     , m_scene(projectscene)
     , m_cursorLine(nullptr)
     , m_operationMode(None)
     , m_moveOpMode(None)
     , m_dragItem(nullptr)
     , m_dragGuide(nullptr)
     , m_visualTip(nullptr)
     , m_keyProperties(nullptr)
     , m_currentToolManager(nullptr)
     , m_autoScroll(KdenliveSettings::autoscroll())
     , m_timelineContextMenu(nullptr)
     , m_timelineContextClipMenu(nullptr)
     , m_timelineContextTransitionMenu(nullptr)
     , m_timelineContextKeyframeMenu(nullptr)
     , m_selectKeyframeType(nullptr)
     , m_markerMenu(nullptr)
     , m_autoTransition(nullptr)
     , m_pasteEffectsAction(nullptr)
     , m_ungroupAction(nullptr)
     , m_editGuide(nullptr)
     , m_deleteGuide(nullptr)
     , m_clipTypeGroup(nullptr)
     , m_clipDrag(false)
     , m_findIndex(0)
     , m_tool(SelectTool)
     , m_copiedItems()
     , m_menuPosition()
     , m_selectionGroup(nullptr)
     , m_selectedTrack(1)
     , m_audioCorrelator(nullptr)
     , m_audioAlignmentReference(nullptr)
 {
     if (doc) {
         m_commandStack = doc->commandStack();
     } else {
         m_commandStack = nullptr;
     }
     m_ct = 0;
     setMouseTracking(true);
     setAcceptDrops(true);
     setFrameShape(QFrame::NoFrame);
     setLineWidth(0);
     //setCacheMode(QGraphicsView::CacheBackground);
     setAutoFillBackground(false);
     setViewportUpdateMode(QGraphicsView::MinimalViewportUpdate);
     setContentsMargins(0, 0, 0, 0);
     KColorScheme scheme(palette().currentColorGroup(), KColorScheme::Window, KSharedConfig::openConfig(KdenliveSettings::colortheme()));
     m_selectedTrackColor = scheme.background(KColorScheme::ActiveBackground).color();
     m_selectedTrackColor.setAlpha(150);
 
     m_lockedTrackColor = scheme.background(KColorScheme::NegativeBackground).color();
     m_lockedTrackColor.setAlpha(150);
 
     m_keyPropertiesTimer = new QTimeLine(800);
     m_keyPropertiesTimer->setFrameRange(0, 5);
     m_keyPropertiesTimer->setUpdateInterval(100);
     m_keyPropertiesTimer->setLoopCount(0);
 
     m_tipColor = QColor(0, 192, 0, 200);
     m_tipPen.setColor(QColor(255, 255, 255, 100));
     m_tipPen.setWidth(3);
 
     setSceneRect(0, 0, sceneRect().width(), m_tracksHeight);
     verticalScrollBar()->setMaximum(m_tracksHeight);
     verticalScrollBar()->setTracking(true);
     // repaint guides when using vertical scroll
     connect(verticalScrollBar(), &QAbstractSlider::valueChanged, this, &CustomTrackView::slotRefreshGuides);
 
     m_cursorLine = projectscene->addLine(0, 0, 0, m_tracksHeight);
     m_cursorLine->setZValue(1000);
     QPen pen1 = QPen();
     pen1.setWidth(1);
     QColor line(palette().text().color());
     line.setAlpha(100);
     pen1.setColor(line);
     m_cursorLine->setPen(pen1);
 
     connect(m_document->renderer(), &Render::prepareTimelineReplacement, this, &CustomTrackView::slotPrepareTimelineReplacement, Qt::DirectConnection);
     connect(m_document->renderer(), &Render::replaceTimelineProducer, this, &CustomTrackView::slotReplaceTimelineProducer, Qt::DirectConnection);
     connect(m_document->renderer(), &Render::updateTimelineProducer, this, &CustomTrackView::slotUpdateTimelineProducer);
     connect(m_document->renderer(), &Render::rendererPosition, this, &CustomTrackView::setCursorPos);
     scale(1, 1);
     setAlignment(Qt::AlignLeft | Qt::AlignTop);
     m_disableClipAction = new QAction(QIcon::fromTheme(QStringLiteral("visibility")), i18n("Disable Clip"), this);
     connect(m_disableClipAction, &QAction::triggered, this, &CustomTrackView::disableClip);
     m_disableClipAction->setCheckable(true);
     m_document->doAddAction(QStringLiteral("clip_disabled"), m_disableClipAction, QKeySequence());
     QAction *pasteAction = m_document->getAction(KStandardAction::name(KStandardAction::Paste));
     if (pasteAction) {
         pasteAction->setEnabled(false);
     }
 }
 
 CustomTrackView::~CustomTrackView()
 {
     qDeleteAll(m_toolManagers);
     qDeleteAll(m_guides);
     m_guides.clear();
     delete m_keyPropertiesTimer;
 }
 
 void CustomTrackView::initTools()
 {
     TrimManager *trim = new TrimManager(this, m_commandStack);
     connect(trim, &TrimManager::updateTrimMode, this, &CustomTrackView::updateTrimMode);
     m_currentToolManager = new SelectManager(this, m_commandStack);
     m_toolManagers.insert(AbstractToolManager::TrimType, trim);
     m_toolManagers.insert(AbstractToolManager::SpacerType, new SpacerManager(this, m_commandStack));
     m_toolManagers.insert(AbstractToolManager::ResizeType, new ResizeManager(this, m_commandStack));
 
     AbstractToolManager *razorManager = new RazorManager(this, m_commandStack);
     m_toolManagers.insert(AbstractToolManager::RazorType, razorManager);
     connect(horizontalScrollBar(), &QAbstractSlider::valueChanged, razorManager, &AbstractToolManager::updateTimelineItems);
     m_toolManagers.insert(AbstractToolManager::MoveType, new MoveManager(m_timeline->transitionHandler, this, m_commandStack));
     m_toolManagers.insert(AbstractToolManager::SelectType, m_currentToolManager);
     m_toolManagers.insert(AbstractToolManager::GuideType, new GuideManager(this, m_commandStack));
     emit updateTrimMode();
 }
 
 //virtual
 void CustomTrackView::keyPressEvent(QKeyEvent *event)
 {
     switch (event->key()) {
     case Qt::Key_Up:
         slotTrackUp();
         event->accept();
         break;
     case Qt::Key_Down:
         slotTrackDown();
         event->accept();
         break;
     default:
         break;
     }
     QGraphicsView::keyPressEvent(event);
 }
 
 bool CustomTrackView::event(QEvent *e)
 {
     if (e->type() == QEvent::ShortcutOverride) {
         TrimManager *mgr = qobject_cast<TrimManager *>(m_toolManagers.value(AbstractToolManager::TrimType));
         if (mgr && mgr->trimMode() != NormalTrim) {
             if (((QKeyEvent *)e)->key() == Qt::Key_Escape) {
                 mgr->setTrimMode(NormalTrim);
                 e->accept();
                 return true;
             }
         }
     }
     return QGraphicsView::event(e);
 }
 
 void CustomTrackView::setDocumentModified()
 {
     m_document->setModified(true);
 }
 
 void CustomTrackView::setContextMenu(QMenu *timeline, QMenu *clip, QMenu *transition, QActionGroup *clipTypeGroup, QMenu *markermenu)
 {
     m_clipTypeGroup = clipTypeGroup;
     m_timelineContextMenu = timeline;
     m_timelineContextClipMenu = clip;
     m_timelineContextTransitionMenu = transition;
     m_timelineContextClipMenu->addAction(m_disableClipAction);
     connect(m_timelineContextTransitionMenu, &QMenu::aboutToHide, this, &CustomTrackView::slotResetMenuPosition);
     connect(m_timelineContextMenu, &QMenu::aboutToHide, this, &CustomTrackView::slotResetMenuPosition);
     connect(m_timelineContextClipMenu, &QMenu::aboutToHide, this, &CustomTrackView::slotResetMenuPosition);
     connect(m_timelineContextTransitionMenu, &QMenu::triggered, this, &CustomTrackView::slotContextMenuActivated);
     connect(m_timelineContextMenu, &QMenu::triggered, this, &CustomTrackView::slotContextMenuActivated);
     connect(m_timelineContextClipMenu, &QMenu::triggered, this, &CustomTrackView::slotContextMenuActivated);
 
     m_markerMenu = new QMenu(i18n("Go to marker..."), this);
     m_markerMenu->setEnabled(false);
     markermenu->addMenu(m_markerMenu);
     connect(m_markerMenu, &QMenu::triggered, this, &CustomTrackView::slotGoToMarker);
     QList<QAction *> list = m_timelineContextClipMenu->actions();
     for (int i = 0; i < list.count(); ++i) {
         if (list.at(i)->data().toString() == QLatin1String("paste_effects")) {
             m_pasteEffectsAction = list.at(i);
         } else if (list.at(i)->data().toString() == QLatin1String("ungroup_clip")) {
             m_ungroupAction = list.at(i);
         } else if (list.at(i)->data().toString() == QLatin1String("A")) {
             m_audioActions.append(list.at(i));
         } else if (list.at(i)->data().toString() == QLatin1String("A+V")) {
             m_avActions.append(list.at(i));
         }
     }
     list = m_timelineContextTransitionMenu->actions();
     for (int i = 0; i < list.count(); ++i) {
         if (list.at(i)->data().toString() == QLatin1String("auto")) {
             m_autoTransition = list.at(i);
             break;
         }
     }
 
     m_timelineContextMenu->addSeparator();
     m_deleteGuide = new QAction(QIcon::fromTheme(QStringLiteral("edit-delete")), i18n("Delete Guide"), this);
     connect(m_deleteGuide, &QAction::triggered, this, &CustomTrackView::slotDeleteTimeLineGuide);
     m_timelineContextMenu->addAction(m_deleteGuide);
 
     m_editGuide = new QAction(QIcon::fromTheme(QStringLiteral("document-properties")), i18n("Edit Guide"), this);
     connect(m_editGuide, &QAction::triggered, this, &CustomTrackView::slotEditTimeLineGuide);
     m_timelineContextMenu->addAction(m_editGuide);
 }
 
 void CustomTrackView::slotDoResetMenuPosition()
 {
     m_menuPosition = QPoint();
 }
 
 void CustomTrackView::slotResetMenuPosition()
 {
     // after a short time (so that the action is triggered / or menu is closed, we reset the menu pos
     QTimer::singleShot(300, this, &CustomTrackView::slotDoResetMenuPosition);
 }
 
 void CustomTrackView::slotContextMenuActivated()
 {
     // Menu disappeared, restore default operation mode
     m_operationMode = None;
 }
 
 void CustomTrackView::checkAutoScroll()
 {
     m_autoScroll = KdenliveSettings::autoscroll();
 }
 
 int CustomTrackView::getFrameWidth() const
 {
     return (int)(m_tracksHeight * m_document->dar() + 0.5);
 }
 
 void CustomTrackView::updateSceneFrameWidth(double fpsChanged)
 {
     int frameWidth = getFrameWidth();
     if (fpsChanged != 1.0 && m_projectDuration > 0) {
         // try to remember and rebuild groups
         // Prepare groups for reload
         QDomDocument doc;
         doc.setContent(m_document->groupsXml());
         QDomNodeList groups;
         if (!doc.isNull()) {
             groups = doc.documentElement().elementsByTagName(QStringLiteral("group"));
             for (int nodeindex = 0; nodeindex < groups.count(); ++nodeindex) {
                 QDomNode grp = groups.item(nodeindex);
                 QDomNodeList nodes = grp.childNodes();
                 for (int itemindex = 0; itemindex < nodes.count(); ++itemindex) {
                     QDomElement elem = nodes.item(itemindex).toElement();
                     if (!elem.hasAttribute(QStringLiteral("position"))) {
                         continue;
                     }
                     int pos = elem.attribute(QStringLiteral("position")).toInt();
                     elem.setAttribute(QStringLiteral("position"), rintf(pos * fpsChanged));
                 }
             }
         }
         clearSelection();
         reloadTimeline();
         loadGroups(groups);
     } else {
         QList<QGraphicsItem *> itemList = items();
         ClipItem *item;
         for (int i = 0; i < itemList.count(); ++i) {
             if (itemList.at(i)->type() == AVWidget) {
                 item = static_cast<ClipItem *>(itemList.at(i));
                 item->resetFrameWidth(frameWidth);
             }
         }
     }
 }
 
 bool CustomTrackView::checkTrackHeight(bool force)
 {
     if (!force && m_tracksHeight == KdenliveSettings::trackheight() && sceneRect().height() == m_tracksHeight * m_timeline->visibleTracksCount()) {
         return false;
     }
     int frameWidth = getFrameWidth();
     if (m_tracksHeight != KdenliveSettings::trackheight()) {
         QList<QGraphicsItem *> itemList = items();
         ClipItem *item;
         Transition *transitionitem;
         m_tracksHeight = KdenliveSettings::trackheight();
         // Remove all items, and re-add them one by one to avoid collisions
         for (int i = 0; i < itemList.count(); ++i) {
             if (itemList.at(i)->type() == AVWidget || itemList.at(i)->type() == TransitionWidget) {
                 m_scene->removeItem(itemList.at(i));
             }
         }
         bool snap = KdenliveSettings::snaptopoints();
         KdenliveSettings::setSnaptopoints(false);
         for (int i = 0; i < itemList.count(); ++i) {
             if (itemList.at(i)->type() == AVWidget) {
                 item = static_cast<ClipItem *>(itemList.at(i));
                 item->setRect(0, 0, item->rect().width(), m_tracksHeight - 1);
                 item->setPos((qreal) item->startPos().frames(m_document->fps()), getPositionFromTrack(item->track()) + 1);
                 m_scene->addItem(item);
                 item->resetFrameWidth(frameWidth);
             } else if (itemList.at(i)->type() == TransitionWidget) {
                 transitionitem = static_cast<Transition *>(itemList.at(i));
                 transitionitem->setRect(0, 0, transitionitem->rect().width(), m_tracksHeight / 3 * 2 - 1);
                 transitionitem->setPos((qreal) transitionitem->startPos().frames(m_document->fps()), getPositionFromTrack(transitionitem->track()) + transitionitem->itemOffset());
                 m_scene->addItem(transitionitem);
             }
         }
         KdenliveSettings::setSnaptopoints(snap);
     }
     setSceneRect(0, 0, sceneRect().width(), m_tracksHeight * m_timeline->visibleTracksCount());
     double newHeight = m_tracksHeight * m_timeline->visibleTracksCount() * matrix().m22();
     if (m_cursorLine->flags() & QGraphicsItem::ItemIgnoresTransformations) {
         m_cursorLine->setLine(0, 0, 0, newHeight - 1);
     } else {
         m_cursorLine->setLine(0, 0, 0, m_tracksHeight * m_timeline->visibleTracksCount() - 1);
     }
     m_currentToolManager->updateTimelineItems();
     for (int i = 0; i < m_guides.count(); ++i) {
         m_guides.at(i)->setLine(0, 0, 0, newHeight - 1);
     }
     viewport()->update();
     return true;
 }
 
 /** Zoom or move viewport on mousewheel
  *
  * If mousewheel+Ctrl, zooms in/out on the timeline.
  *
  * With Ctrl, moves viewport towards end of timeline if down/back,
  * opposite on up/forward.
  *
  * See also http://www.kdenlive.org/mantis/view.php?id=265 */
 void CustomTrackView::wheelEvent(QWheelEvent *e)
 {
     if (e->modifiers() == Qt::ControlModifier) {
         if (m_moveOpMode == None || m_moveOpMode == WaitingForConfirm || m_moveOpMode == ZoomTimeline) {
             if (e->delta() > 0) {
                 emit zoomIn(true);
             } else {
                 emit zoomOut(true);
             }
         }
     } else if (e->modifiers() == Qt::AltModifier) {
         if (m_moveOpMode == None || m_moveOpMode == WaitingForConfirm || m_moveOpMode == ZoomTimeline) {
             if (e->delta() > 0) {
                 slotSeekToNextSnap();
             } else {
                 slotSeekToPreviousSnap();
             }
         }
     } else {
         if (m_moveOpMode == ResizeStart || m_moveOpMode == ResizeEnd) {
             // Don't allow scg + resizing
             return;
         }
         if (m_operationMode == None || m_operationMode == ZoomTimeline) {
             // Prevent unwanted object move
             m_scene->isZooming = true;
         }
         if (e->delta() <= 0) {
             horizontalScrollBar()->setValue(horizontalScrollBar()->value() + horizontalScrollBar()->singleStep());
         } else {
             horizontalScrollBar()->setValue(horizontalScrollBar()->value() - horizontalScrollBar()->singleStep());
         }
         if (m_operationMode == None || m_operationMode == ZoomTimeline) {
             m_scene->isZooming = false;
         }
     }
 }
 
 int CustomTrackView::getPreviousVideoTrack(int track)
 {
     int i = track - 1;
     for (; i > 0; i--) {
         if (m_timeline->getTrackInfo(i).type == VideoTrack) {
             break;
         }
     }
     return i;
 }
 
 int CustomTrackView::getNextVideoTrack(int track)
 {
     for (; track < m_timeline->visibleTracksCount(); track++) {
         if (m_timeline->getTrackInfo(track).type == VideoTrack) {
             break;
         }
     }
     return track;
 }
 
 void CustomTrackView::slotCheckPositionScrolling()
 {
     // If mouse is at a border of the view, scroll
     if (m_moveOpMode != Seek) {
         return;
     }
     if (mapFromScene(m_cursorPos, 0).x() < 3) {
         if (horizontalScrollBar()->value() == 0) {
             return;
         }
         horizontalScrollBar()->setValue(horizontalScrollBar()->value() - 2);
         QTimer::singleShot(200, this, &CustomTrackView::slotCheckPositionScrolling);
         seekCursorPos(mapToScene(QPoint(-2, 0)).x());
     } else if (viewport()->width() - 3 < mapFromScene(m_cursorPos + 1, 0).x()) {
         horizontalScrollBar()->setValue(horizontalScrollBar()->value() + 2);
         seekCursorPos(mapToScene(QPoint(viewport()->width(), 0)).x() + 1);
         QTimer::singleShot(200, this, &CustomTrackView::slotCheckPositionScrolling);
     }
 }
 
 void CustomTrackView::slotAlignPlayheadToMousePos()
 {
     /* get curser point ref in screen coord */
     QPoint ps = QCursor::pos();
     /* get xPos in scene coord */
     int mappedXPos = qMax((int)(mapToScene(mapFromGlobal(ps)).x() + 0.5), 0);
     /* move playhead to new xPos*/
     seekCursorPos(mappedXPos);
 }
 
 int CustomTrackView::getMousePos() const
 {
     return qMax((int)(mapToScene(mapFromGlobal(QCursor::pos())).x() + 0.5), 0);
 }
 
 void CustomTrackView::spaceToolMoveToSnapPos(double snappedPos)
 {
     // Make sure there is no collision
     QList<QGraphicsItem *> children = m_selectionGroup->childItems();
     QPainterPath shape = m_selectionGroup->clipGroupSpacerShape(QPointF(snappedPos - m_selectionGroup->sceneBoundingRect().left(), 0));
     QList<QGraphicsItem *> collidingItems = scene()->items(shape, Qt::IntersectsItemShape);
     collidingItems.removeAll(m_selectionGroup);
     for (int i = 0; i < children.count(); ++i) {
         if (children.at(i)->type() == GroupWidget) {
             QList<QGraphicsItem *> subchildren = children.at(i)->childItems();
             for (int j = 0; j < subchildren.count(); ++j) {
                 collidingItems.removeAll(subchildren.at(j));
             }
         }
         collidingItems.removeAll(children.at(i));
     }
     bool collision = false;
     int offset = 0;
     for (int i = 0; i < collidingItems.count(); ++i) {
         if (!collidingItems.at(i)->isEnabled()) {
             continue;
         }
         if (collidingItems.at(i)->type() == AVWidget && snappedPos < m_selectionGroup->sceneBoundingRect().left()) {
             AbstractClipItem *item = static_cast <AbstractClipItem *>(collidingItems.at(i));
             // Moving backward, determine best pos
             QPainterPath clipPath;
             clipPath.addRect(item->sceneBoundingRect());
             QPainterPath res = shape.intersected(clipPath);
             offset = qMax(offset, (int)(res.boundingRect().width() + 0.5));
         }
     }
     snappedPos += offset;
     // make sure we have no collision
     shape = m_selectionGroup->clipGroupSpacerShape(QPointF(snappedPos - m_selectionGroup->sceneBoundingRect().left(), 0));
     collidingItems = scene()->items(shape, Qt::IntersectsItemShape);
     collidingItems.removeAll(m_selectionGroup);
     for (int i = 0; i < children.count(); ++i) {
         if (children.at(i)->type() == GroupWidget) {
             QList<QGraphicsItem *> subchildren = children.at(i)->childItems();
             for (int j = 0; j < subchildren.count(); ++j) {
                 collidingItems.removeAll(subchildren.at(j));
             }
         }
         collidingItems.removeAll(children.at(i));
     }
 
     for (int i = 0; i < collidingItems.count(); ++i) {
         if (!collidingItems.at(i)->isEnabled()) {
             continue;
         }
         if (collidingItems.at(i)->type() == AVWidget) {
             collision = true;
             break;
         }
     }
 
     if (!collision) {
         // Check transitions
         shape = m_selectionGroup->transitionGroupShape(QPointF(snappedPos - m_selectionGroup->sceneBoundingRect().left(), 0));
         collidingItems = scene()->items(shape, Qt::IntersectsItemShape);
         collidingItems.removeAll(m_selectionGroup);
         for (int i = 0; i < children.count(); ++i) {
             if (children.at(i)->type() == GroupWidget) {
                 QList<QGraphicsItem *> subchildren = children.at(i)->childItems();
                 for (int j = 0; j < subchildren.count(); ++j) {
                     collidingItems.removeAll(subchildren.at(j));
                 }
             }
             collidingItems.removeAll(children.at(i));
         }
         offset = 0;
 
         for (int i = 0; i < collidingItems.count(); ++i) {
             if (collidingItems.at(i)->type() == TransitionWidget && snappedPos < m_selectionGroup->sceneBoundingRect().left()) {
                 AbstractClipItem *item = static_cast <AbstractClipItem *>(collidingItems.at(i));
                 // Moving backward, determine best pos
                 QPainterPath clipPath;
                 clipPath.addRect(item->sceneBoundingRect());
                 QPainterPath res = shape.intersected(clipPath);
                 offset = qMax(offset, (int)(res.boundingRect().width() + 0.5));
             }
         }
 
         snappedPos += offset;
         // make sure we have no collision
         shape = m_selectionGroup->transitionGroupShape(QPointF(snappedPos - m_selectionGroup->sceneBoundingRect().left(), 0));
         collidingItems = scene()->items(shape, Qt::IntersectsItemShape);
         collidingItems.removeAll(m_selectionGroup);
         for (int i = 0; i < children.count(); ++i) {
             if (children.at(i)->type() == GroupWidget) {
                 QList<QGraphicsItem *> subchildren = children.at(i)->childItems();
                 for (int j = 0; j < subchildren.count(); ++j) {
                     collidingItems.removeAll(subchildren.at(j));
                 }
             }
             collidingItems.removeAll(children.at(i));
         }
         for (int i = 0; i < collidingItems.count(); ++i) {
             if (collidingItems.at(i)->type() == TransitionWidget) {
                 collision = true;
                 break;
             }
         }
     }
 
     if (!collision) {
         m_selectionGroup->setTransform(QTransform::fromTranslate(snappedPos - m_selectionGroup->sceneBoundingRect().left(), 0), true);
     }
 }
 
 // virtual
 void CustomTrackView::mouseMoveEvent(QMouseEvent *event)
 {
     int mappedXPos = qMax((int)(mapToScene(event->pos()).x()), 0);
     emit mousePosition(mappedXPos);
 
     if (m_moveOpMode == Seek && event->buttons() != Qt::NoButton) {
         QGraphicsView::mouseMoveEvent(event);
         if (mappedXPos != m_document->renderer()->getCurrentSeekPosition() && mappedXPos != cursorPos()) {
             seekCursorPos(mappedXPos);
             slotCheckPositionScrolling();
         }
         return;
     }
 
     if (m_moveOpMode == ScrollTimeline) {
         QGraphicsView::mouseMoveEvent(event);
         return;
     }
     if (event->buttons() & Qt::MidButton) {
         return;
     }
     if (m_moveOpMode == RubberSelection) {
         QGraphicsView::mouseMoveEvent(event);
         return;
     }
 
     if (m_moveOpMode == WaitingForConfirm && event->buttons() != Qt::NoButton) {
         bool move = (event->pos() - m_clickEvent).manhattanLength() >= QApplication::startDragDistance();
         if (move) {
             m_moveOpMode = m_operationMode;
         }
     }
 
     QList<QGraphicsItem *> itemList = items(event->pos());
     QGraphicsRectItem *item = nullptr;
 
     bool abort = false;
     GuideManager::checkOperation(itemList, this, event, m_operationMode, abort);
     if (abort) {
         return;
     }
 
     if (!abort) {
         for (int i = 0; i < itemList.count(); ++i) {
             if (itemList.at(i)->type() == AVWidget || itemList.at(i)->type() == TransitionWidget) {
                 item = (QGraphicsRectItem *) itemList.at(i);
                 break;
             }
         }
     }
     switch (m_tool) {
     case RazorTool:
         RazorManager::checkOperation(item, this, event, mappedXPos, m_operationMode, abort);
         break;
     case SpacerTool:
         break;
     case SelectTool:
     default:
         SelectManager::checkOperation(item, this, event, m_selectionGroup, m_operationMode, m_moveOpMode);
         break;
     }
 
     if (!m_currentToolManager->mouseMove(event, mappedXPos, getPositionFromTrack(getTrackFromPos(mapToScene(event->pos()).y())))) {
         QGraphicsView::mouseMoveEvent(event);
     }
 }
 
 QString CustomTrackView::getDisplayTimecode(const GenTime &time) const
 {
     return m_document->timecode().getDisplayTimecode(time, KdenliveSettings::frametimecode());
 }
 
 QString CustomTrackView::getDisplayTimecodeFromFrames(int frames) const
 {
     return m_document->timecode().getDisplayTimecodeFromFrames(frames, KdenliveSettings::frametimecode());
 }
 
 void CustomTrackView::graphicsViewMouseEvent(QMouseEvent *event)
 {
     QGraphicsView::mouseMoveEvent(event);
 }
 
 void CustomTrackView::createRectangleSelection(Qt::KeyboardModifiers modifiers)
 {
     setDragMode(QGraphicsView::RubberBandDrag);
     setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
     if (!(modifiers & Qt::ControlModifier)) {
         resetSelectionGroup();
         if (m_dragItem) {
             emit clipItemSelected(nullptr);
             m_dragItem->setMainSelectedClip(false);
             m_dragItem = nullptr;
         }
         scene()->clearSelection();
     }
     m_moveOpMode = RubberSelection;
 }
 
 QList<QGraphicsItem *> CustomTrackView::selectAllItemsToTheRight(int x)
 {
     QRectF r = m_scene->sceneRect();
     r.setLeft(x);
     return m_scene->items(r);
 }
 
 int CustomTrackView::spaceToolSelectTrackOnly(int track, QList<QGraphicsItem *> &selection, GenTime pos)
 {
     if (m_timeline->getTrackInfo(track).isLocked) {
         // Cannot use spacer on locked track
         emit displayMessage(i18n("Cannot use spacer in a locked track"), ErrorMessage);
         return -1;
     }
     QRectF rect;
     if (pos > GenTime()) {
         rect = QRectF(pos.frames(m_document->fps()), getPositionFromTrack(track) + m_tracksHeight / 2, sceneRect().width() - pos.frames(m_document->fps()), m_tracksHeight / 2 - 2);
     } else {
         rect = QRectF(mapToScene(m_clickEvent).x(), getPositionFromTrack(track) + m_tracksHeight / 2, sceneRect().width() - mapToScene(m_clickEvent).x(), m_tracksHeight / 2 - 2);
     }
     bool isOk;
     selection = checkForGroups(rect, &isOk);
     if (!isOk) {
         // groups found on track, do not allow the move
         emit displayMessage(i18n("Cannot use spacer in a track with a group"), ErrorMessage);
         return -1;
     }
     //qCDebug(KDENLIVE_LOG) << "SPACER TOOL + CTRL, SELECTING ALL CLIPS ON TRACK " << track << " WITH SELECTION RECT " << m_clickEvent.x() << '/' <<  track * m_tracksHeight + 1 << "; " << mapFromScene(sceneRect().width(), 0).x() - m_clickEvent.x() << '/' << m_tracksHeight - 2;
     return 0;
 }
 
 GenTime CustomTrackView::createGroupForSelectedItems(QList<QGraphicsItem *> &selection)
 {
     QList<GenTime> offsetList;
     // create group to hold selected items
     m_selectionMutex.lock();
     m_selectionGroup = new AbstractGroupItem(m_document->fps());
     scene()->addItem(m_selectionGroup);
 
     for (int i = 0; i < selection.count(); ++i) {
         if (selection.at(i)->parentItem() == nullptr && (selection.at(i)->type() == AVWidget || selection.at(i)->type() == TransitionWidget)) {
             AbstractClipItem *item = static_cast<AbstractClipItem *>(selection.at(i));
             if (item->isItemLocked()) {
                 continue;
             }
             offsetList.append(item->startPos());
             offsetList.append(item->endPos());
             m_selectionGroup->addItem(selection.at(i));
         } else if (selection.at(i)->type() == GroupWidget) {
             if (static_cast<AbstractGroupItem *>(selection.at(i))->isItemLocked()) {
                 continue;
             }
             QList<QGraphicsItem *> children = selection.at(i)->childItems();
             for (int j = 0; j < children.count(); ++j) {
                 AbstractClipItem *item = static_cast<AbstractClipItem *>(children.at(j));
                 offsetList.append(item->startPos());
                 offsetList.append(item->endPos());
             }
             m_selectionGroup->addItem(selection.at(i));
         } else if (selection.at(i)->parentItem() && !selection.contains(selection.at(i)->parentItem())) {
             if (static_cast<AbstractGroupItem *>(selection.at(i)->parentItem())->isItemLocked()) {
                 continue;
             }
             m_selectionGroup->addItem(selection.at(i)->parentItem());
         }
     }
     m_selectionMutex.unlock();
     if (!offsetList.isEmpty()) {
         qSort(offsetList);
         QList<GenTime> cleandOffsetList;
         GenTime startOffset = offsetList.takeFirst();
         for (int k = 0; k < offsetList.size(); ++k) {
             GenTime newoffset = offsetList.at(k) - startOffset;
             if (newoffset != GenTime() && !cleandOffsetList.contains(newoffset)) {
                 cleandOffsetList.append(newoffset);
             }
         }
         updateSnapPoints(nullptr, cleandOffsetList, true);
     }
     return m_selectionGroup->startPos();
 }
 
 void CustomTrackView::updateTimelineSelection()
 {
     if (m_dragItem) {
         m_dragItem->setZValue(99);
         if (m_dragItem->parentItem()) {
             m_dragItem->parentItem()->setZValue(99);
         }
 
         // clip selected, update effect stack
         if (m_dragItem->type() == AVWidget && !m_dragItem->isItemLocked()) {
             ClipItem *selected = static_cast <ClipItem *>(m_dragItem);
             emit clipItemSelected(selected, false);
         } else {
             emit clipItemSelected(nullptr);
         }
         if (m_dragItem->type() == TransitionWidget && m_dragItem->isEnabled()) {
             // update transition menu action
             m_autoTransition->setChecked(static_cast<Transition *>(m_dragItem)->isAutomatic());
             m_autoTransition->setEnabled(true);
             // A transition is selected
             QPoint p;
             ClipItem *transitionClip = getClipItemAtStart(m_dragItemInfo.startPos, m_dragItemInfo.track);
             if (transitionClip && transitionClip->binClip()) {
                 int frameWidth = transitionClip->binClip()->getProducerIntProperty(QStringLiteral("meta.media.width"));
                 int frameHeight = transitionClip->binClip()->getProducerIntProperty(QStringLiteral("meta.media.height"));
                 double factor = transitionClip->binClip()->getProducerProperty(QStringLiteral("aspect_ratio")).toDouble();
                 if (factor == 0) {
                     factor = 1.0;
                 }
                 p.setX((int)(frameWidth * factor + 0.5));
                 p.setY(frameHeight);
             }
             emit transitionItemSelected(static_cast <Transition *>(m_dragItem), getPreviousVideoTrack(m_dragItem->track()), p);
         } else {
             emit transitionItemSelected(nullptr);
             m_autoTransition->setEnabled(false);
         }
     } else {
         emit clipItemSelected(nullptr);
         emit transitionItemSelected(nullptr);
         m_autoTransition->setEnabled(false);
     }
 }
 
 // virtual
 void CustomTrackView::mousePressEvent(QMouseEvent *event)
 {
     emit activateDocumentMonitor();
     setFocus(Qt::MouseFocusReason);
     m_menuPosition = QPoint();
     if (m_moveOpMode == MoveOperation) {
         // click while dragging, ignore
         event->ignore();
         return;
     }
     m_moveOpMode = WaitingForConfirm;
     m_clipDrag = false;
 
     // special cases (middle click button or ctrl / shift click)
     if (event->button() == Qt::MidButton) {
         if (m_operationMode == KeyFrame) {
             if (m_dragItem->type() == AVWidget) {
                 ClipItem *item = static_cast<ClipItem *>(m_dragItem);
                 m_dragItem->insertKeyframe(m_document->getProfileInfo(), item->getEffectAtIndex(item->selectedEffectIndex()), m_dragItem->selectedKeyFramePos(), -1, true);
                 m_dragItem->update();
             }
         } else {
             emit playMonitor();
             m_operationMode = None;
         }
         return;
     }
 
     m_dragGuide = nullptr;
     m_clickEvent = event->pos();
 
     // check item under mouse
     QList<QGraphicsItem *> collisionList = items(m_clickEvent);
     if (event->button() == Qt::LeftButton && event->modifiers() == Qt::ControlModifier && m_tool != SpacerTool && collisionList.isEmpty()) {
         // Pressing Ctrl + left mouse button in an empty area scrolls the timeline
         setDragMode(QGraphicsView::ScrollHandDrag);
         m_moveOpMode = ScrollTimeline;
         QGraphicsView::mousePressEvent(event);
         return;
     }
 
     if (event->button() == Qt::LeftButton && m_toolManagers.value(AbstractToolManager::GuideType)->mousePress(event, ItemInfo(), collisionList)) {
         QGraphicsView::mousePressEvent(event);
         if (m_currentToolManager->type() != AbstractToolManager::GuideType) {
             m_currentToolManager->closeTool();
             m_currentToolManager = m_toolManagers.value(AbstractToolManager::GuideType);
         }
         return;
     }
 
     // Find first clip, transition or group under mouse (when no guides selected)
     int ct = 0;
     AbstractGroupItem *dragGroup = nullptr;
     AbstractClipItem *collisionClip = nullptr;
     bool found = false;
     QList<int> lockedTracks;
     double yOffset = 0;
     m_selectionMutex.lock();
     while (!m_dragGuide && ct < collisionList.count()) {
         if (collisionList.at(ct)->type() == AVWidget || collisionList.at(ct)->type() == TransitionWidget) {
             collisionClip = static_cast <AbstractClipItem *>(collisionList.at(ct));
             if (collisionClip->isItemLocked() || !collisionClip->isEnabled()) {
                 ct++;
                 continue;
             }
             if (collisionClip == m_dragItem) {
                 collisionClip = nullptr;
             } else {
                 if (m_dragItem) {
                     m_dragItem->setMainSelectedClip(false);
                 }
                 m_dragItem = collisionClip;
                 m_dragItem->setMainSelectedClip(true);
             }
             found = true;
             bool allowAudioOnly = false;
             if (KdenliveSettings::splitaudio() && m_dragItem->type() == AVWidget) {
                 ClipItem *clp = static_cast<ClipItem *>(m_dragItem);
                 if (clp) {
                     if (clp->clipType() == Audio || clp->clipState() == PlaylistState::AudioOnly) {
                         allowAudioOnly = true;
                     }
                 }
             }
             for (int i = 1; i < m_timeline->tracksCount(); ++i) {
                 TrackInfo nfo = m_timeline->getTrackInfo(i);
                 if (nfo.isLocked || (allowAudioOnly && nfo.type == VideoTrack)) {
                     lockedTracks << i;
                 }
             }
             yOffset = mapToScene(m_clickEvent).y() - m_dragItem->scenePos().y();
             m_dragItem->setProperty("y_absolute", yOffset);
             m_dragItem->setProperty("locked_tracks", QVariant::fromValue(lockedTracks));
             m_dragItemInfo = m_dragItem->info();
             if (m_selectionGroup) {
                 m_selectionGroup->setProperty("y_absolute", yOffset);
                 m_selectionGroup->setProperty("locked_tracks", QVariant::fromValue(lockedTracks));
             }
             if (m_dragItem->parentItem() && m_dragItem->parentItem()->type() == GroupWidget && m_dragItem->parentItem() != m_selectionGroup) {
                 QGraphicsItem *topGroup = m_dragItem->parentItem();
                 while (topGroup->parentItem() && topGroup->parentItem()->type() == GroupWidget && topGroup->parentItem() != m_selectionGroup) {
                     topGroup = topGroup->parentItem();
                 }
                 dragGroup = static_cast <AbstractGroupItem *>(topGroup);
                 dragGroup->setProperty("y_absolute", yOffset);
                 dragGroup->setProperty("locked_tracks", QVariant::fromValue(lockedTracks));
             }
             break;
         }
         ct++;
     }
     m_selectionMutex.unlock();
     if (!found) {
         if (m_dragItem) {
             m_dragItem->setMainSelectedClip(false);
         }
         m_dragItem = nullptr;
     }
 
     // context menu requested
     if (event->button() == Qt::RightButton) {
         // Check if we want keyframes context menu
         if (!m_dragGuide) {
             // check if there is a guide close to mouse click
             QList<QGraphicsItem *> guidesCollisionList = items(event->pos().x() - 5, event->pos().y(), 10, 2); // a rect of height < 2 does not always collide with the guide
             for (int i = 0; i < guidesCollisionList.count(); ++i) {
                 if (guidesCollisionList.at(i)->type() == GUIDEITEM) {
                     m_dragGuide = static_cast <Guide *>(guidesCollisionList.at(i));
                     break;
                 }
             }
             // keep this to support multiple guides context menu in the future (?)
             /*if (guidesCollisionList.at(0)->type() != GUIDEITEM)
                 guidesCollisionList.removeAt(0);
             }
             if (!guidesCollisionList.isEmpty())
             m_dragGuide = static_cast <Guide *>(guidesCollisionList.at(0));*/
         }
         m_menuPosition = m_clickEvent;
         /* if (dragGroup == nullptr) {
             if (m_dragItem && m_dragItem->parentItem() && m_dragItem->parentItem() != m_selectionGroup)
                 dragGroup = static_cast<AbstractGroupItem*> (m_dragItem->parentItem());
         }
         */
         if (m_dragItem) {
             if (!m_dragItem->isSelected()) {
                 resetSelectionGroup();
                 m_scene->clearSelection();
                 m_dragItem->setSelected(true);
             }
             m_dragItem->setZValue(99);
             if (m_dragItem->parentItem()) {
                 m_dragItem->parentItem()->setZValue(99);
             }
         }
         event->accept();
         updateTimelineSelection();
         return;
     }
 
     QPointF clickPoint = mapToScene(event->pos());
     ItemInfo clickInfo;
     clickInfo.startPos = GenTime(clickPoint.x(), m_document->fps());
     clickInfo.track = getTrackFromPos(clickPoint.y());
     if (m_currentToolManager->type() == AbstractToolManager::SpacerType || m_currentToolManager->type() == AbstractToolManager::RazorType) {
         m_currentToolManager->mousePress(event, clickInfo);
         return;
     }
     /*if (event->button() == Qt::LeftButton) {
         if (m_tool == SpacerTool) {
             m_toolManagers.value(AbstractToolManager::SpacerType)->mousePress(clickInfo, event->modifiers());
             QGraphicsView::mousePressEvent(event);
             return;
         }
         // Razor tool
         if (m_tool == RazorTool) {
             m_document->renderer()->switchPlay(false);
             m_toolManagers.value(AbstractToolManager::RazorType)->mousePress(clickInfo);
             event->accept();
             return;
         }
     }*/
     if (m_dragItem) {
         bool itemSelected = false;
         bool selected = true;
         if (m_dragItem->isSelected()) {
             itemSelected = true;
             selected = false;
         } else if (m_dragItem->parentItem() && m_dragItem->parentItem()->isSelected()) {
             itemSelected = true;
         } else if (dragGroup && dragGroup->isSelected()) {
             itemSelected = true;
         }
 
         if (event->modifiers() & Qt::ControlModifier && m_operationMode != ResizeEnd && m_operationMode != ResizeStart)  {
             // Handle ctrl click events
             resetSelectionGroup();
             m_dragItem->setSelected(selected);
             groupSelectedItems(QList<QGraphicsItem *>(), false, true);
             if (selected) {
                 m_selectionMutex.lock();
                 if (m_selectionGroup) {
                     m_selectionGroup->setProperty("y_absolute", yOffset);
                     m_selectionGroup->setProperty("locked_tracks", QVariant::fromValue(lockedTracks));
                 }
                 m_selectionMutex.unlock();
             } else {
                 m_dragItem->setMainSelectedClip(false);
                 m_dragItem = nullptr;
             }
             updateTimelineSelection();
             return;
         }
 
         if (itemSelected == false) {
             // User clicked a non selected item, select it
             resetSelectionGroup(false);
             m_scene->clearSelection();
             m_dragItem->setSelected(true);
             m_dragItem->setZValue(99);
             if (m_dragItem->parentItem()) {
                 m_dragItem->parentItem()->setZValue(99);
             }
 
             if (m_dragItem && m_dragItem->type() == AVWidget) {
                 ClipItem *clip = static_cast<ClipItem *>(m_dragItem);
                 updateClipTypeActions(dragGroup == nullptr ? clip : nullptr);
                 m_pasteEffectsAction->setEnabled(m_copiedItems.count() == 1);
             } else {
                 updateClipTypeActions(nullptr);
             }
         } else {
             m_selectionMutex.lock();
             if (m_selectionGroup) {
                 QList<QGraphicsItem *> children = m_selectionGroup->childItems();
                 for (int i = 0; i < children.count(); ++i) {
                     children.at(i)->setSelected(itemSelected);
                 }
                 m_selectionGroup->setSelected(itemSelected);
 
             }
             if (dragGroup) {
                 dragGroup->setSelected(itemSelected);
             }
             m_dragItem->setSelected(itemSelected);
             m_selectionMutex.unlock();
         }
 
         m_selectionMutex.lock();
         if (m_selectionGroup) {
             m_selectionGroup->setProperty("y_absolute", yOffset);
             m_selectionGroup->setProperty("locked_tracks", QVariant::fromValue(lockedTracks));
         }
         m_selectionMutex.unlock();
 
         updateTimelineSelection();
     }
     if (event->button() == Qt::LeftButton) {
         if (m_dragItem) {
             if (m_selectionGroup && m_dragItem->parentItem() == m_selectionGroup) {
                 // all other modes break the selection, so the user probably wants to move it
                 m_operationMode = MoveOperation;
             } else {
                 if (m_dragItem->rect().width() * transform().m11() < 15) {
                     // If the item is very small, only allow move
                     m_operationMode = MoveOperation;
                 } else {
                     m_operationMode = m_dragItem->operationMode(m_dragItem->mapFromScene(mapToScene(event->pos())), event->modifiers());
                 }
                 if (m_operationMode == ResizeEnd) {
                     // FIXME: find a better way to avoid move in ClipItem::itemChange?
                     m_dragItem->setProperty("resizingEnd", true);
                 }
             }
         } else {
             m_operationMode = None;
         }
     }
     // Switch to correct tool
     if (!m_currentToolManager->isCurrent(m_operationMode)) {
         m_currentToolManager->closeTool();
         m_currentToolManager = m_toolManagers.value(m_currentToolManager->getTool(m_operationMode));
         m_currentToolManager->initTool(mapToScene(event->pos()).x());
     }
 
     // Update snap points
     if (m_selectionGroup == nullptr) {
         if (m_operationMode == ResizeEnd || m_operationMode == ResizeStart) {
             updateSnapPoints(nullptr);
         } else {
             updateSnapPoints(m_dragItem);
         }
     } else {
         m_selectionMutex.lock();
         QList<GenTime> offsetList;
         QList<QGraphicsItem *> children = m_selectionGroup->childItems();
         for (int i = 0; i < children.count(); ++i) {
             if (children.at(i)->type() == AVWidget || children.at(i)->type() == TransitionWidget) {
                 AbstractClipItem *item = static_cast <AbstractClipItem *>(children.at(i));
                 offsetList.append(item->startPos());
                 offsetList.append(item->endPos());
             }
         }
         if (!offsetList.isEmpty()) {
             qSort(offsetList);
             GenTime startOffset = offsetList.takeFirst();
             QList<GenTime> cleandOffsetList;
             for (int k = 0; k < offsetList.size(); ++k) {
                 GenTime newoffset = offsetList.at(k) - startOffset;
                 if (newoffset != GenTime() && !cleandOffsetList.contains(newoffset)) {
                     cleandOffsetList.append(newoffset);
                 }
             }
             updateSnapPoints(nullptr, cleandOffsetList, true);
         }
         m_selectionMutex.unlock();
     }
     m_currentToolManager->mousePress(event, m_dragItemInfo);
 
     QGraphicsView::mousePressEvent(event);
     if (m_operationMode == KeyFrame) {
         m_dragItem->prepareKeyframeMove();
         return;
     } else if (m_operationMode == TransitionStart && event->modifiers() != Qt::ControlModifier) {
         ItemInfo info;
         info.startPos = m_dragItem->startPos();
         info.track = m_dragItem->track();
         int transitiontrack = getPreviousVideoTrack(info.track);
         ClipItem *transitionClip = nullptr;
         if (transitiontrack != 0) {
             transitionClip = getClipItemAtMiddlePoint(info.startPos.frames(m_document->fps()), transitiontrack);
         }
         if (transitionClip && transitionClip->endPos() < m_dragItem->endPos()) {
             info.endPos = transitionClip->endPos();
         } else {
             GenTime transitionDuration(m_document->getFramePos(KdenliveSettings::transition_duration()), m_document->fps());
             if (m_dragItem->cropDuration() < transitionDuration) {
                 info.endPos = m_dragItem->endPos();
             } else {
                 info.endPos = info.startPos + transitionDuration;
             }
         }
         if (info.endPos == info.startPos) {
             info.endPos = info.startPos + GenTime(m_document->getFramePos(KdenliveSettings::transition_duration()), m_document->fps());
         }
         // Check there is no other transition at that place
         double startY = getPositionFromTrack(info.track) + 1 + m_tracksHeight / 2;
         QRectF r(info.startPos.frames(m_document->fps()), startY, (info.endPos - info.startPos).frames(m_document->fps()), m_tracksHeight / 2);
         QList<QGraphicsItem *> selection = m_scene->items(r);
         bool transitionAccepted = true;
         for (int i = 0; i < selection.count(); ++i) {
             if (selection.at(i)->type() == TransitionWidget) {
                 Transition *tr = static_cast <Transition *>(selection.at(i));
                 if (tr->startPos() - info.startPos > GenTime(5, m_document->fps())) {
                     if (tr->startPos() < info.endPos) {
                         info.endPos = tr->startPos();
                     }
                 } else {
                     transitionAccepted = false;
                 }
             }
         }
         if (transitionAccepted) {
             slotAddTransition(static_cast<ClipItem *>(m_dragItem), info, transitiontrack);
         } else {
             emit displayMessage(i18n("Cannot add transition"), ErrorMessage);
         }
     } else if (m_operationMode == TransitionEnd && event->modifiers() != Qt::ControlModifier) {
         ItemInfo info;
         info.endPos = GenTime(m_dragItem->endPos().frames(m_document->fps()), m_document->fps());
         info.track = m_dragItem->track();
         int transitiontrack = getPreviousVideoTrack(info.track);
         ClipItem *transitionClip = nullptr;
         if (transitiontrack != 0) {
             transitionClip = getClipItemAtMiddlePoint(info.endPos.frames(m_document->fps()), transitiontrack);
         }
         if (transitionClip && transitionClip->startPos() > m_dragItem->startPos()) {
             info.startPos = transitionClip->startPos();
         } else {
             GenTime transitionDuration(m_document->getFramePos(KdenliveSettings::transition_duration()), m_document->fps());
             if (m_dragItem->cropDuration() < transitionDuration) {
                 info.startPos = m_dragItem->startPos();
             } else {
                 info.startPos = info.endPos - transitionDuration;
             }
         }
         if (info.endPos == info.startPos) {
             GenTime transitionDuration(m_document->getFramePos(KdenliveSettings::transition_duration()), m_document->fps());
             if (info.endPos < transitionDuration) {
                 info.startPos = GenTime();
             } else {
                 info.startPos = info.endPos - transitionDuration;
             }
         }
         QDomElement transition = MainWindow::transitions.getEffectByTag(QStringLiteral("luma"), QStringLiteral("dissolve")).cloneNode().toElement();
         EffectsList::setParameter(transition, QStringLiteral("reverse"), QStringLiteral("1"));
 
         // Check there is no other transition at that place
         double startY = getPositionFromTrack(info.track) + 1 + m_tracksHeight / 2;
         QRectF r(info.startPos.frames(m_document->fps()), startY, (info.endPos - info.startPos).frames(m_document->fps()), m_tracksHeight / 2);
         QList<QGraphicsItem *> selection = m_scene->items(r);
         bool transitionAccepted = true;
         for (int i = 0; i < selection.count(); ++i) {
             if (selection.at(i)->type() == TransitionWidget) {
                 Transition *tr = static_cast <Transition *>(selection.at(i));
                 if (info.endPos - tr->endPos() > GenTime(5, m_document->fps())) {
                     if (tr->endPos() > info.startPos) {
                         info.startPos = tr->endPos();
                     }
                 } else {
                     transitionAccepted = false;
                 }
             }
         }
         if (transitionAccepted) {
             slotAddTransition(static_cast<ClipItem *>(m_dragItem), info, transitiontrack, transition);
         } else {
             emit displayMessage(i18n("Cannot add transition"), ErrorMessage);
         }
 
     }
 }
 
 void CustomTrackView::rebuildGroup(int childTrack, const GenTime &childPos)
 {
     const QPointF p((int)childPos.frames(m_document->fps()), getPositionFromTrack(childTrack) + m_tracksHeight / 2);
     QList<QGraphicsItem *> list = scene()->items(p);
     AbstractGroupItem *group = nullptr;
     for (int i = 0; i < list.size(); ++i) {
         if (!list.at(i)->isEnabled()) {
             continue;
         }
         if (list.at(i)->type() == GroupWidget) {
             group = static_cast <AbstractGroupItem *>(list.at(i));
             break;
         }
     }
     rebuildGroup(group);
 }
 
 void CustomTrackView::rebuildGroup(AbstractGroupItem *group)
 {
     if (group) {
         m_selectionMutex.lock();
         if (group == m_selectionGroup) {
             m_selectionGroup = nullptr;
         }
         QList<QGraphicsItem *> children = group->childItems();
         m_document->clipManager()->removeGroup(group);
         for (int i = 0; i < children.count(); ++i) {
             group->removeFromGroup(children.at(i));
         }
         scene()->destroyItemGroup(group);
         m_selectionMutex.unlock();
         groupSelectedItems(children, group != m_selectionGroup, true);
     }
 }
 
 void CustomTrackView::resetSelectionGroup(bool selectItems)
 {
     QMutexLocker lock(&m_selectionMutex);
     if (m_selectionGroup) {
         // delete selection group
         bool snap = KdenliveSettings::snaptopoints();
         KdenliveSettings::setSnaptopoints(false);
 
         QList<QGraphicsItem *> children = m_selectionGroup->childItems();
         scene()->destroyItemGroup(m_selectionGroup);
         m_selectionGroup = nullptr;
         for (int i = 0; i < children.count(); ++i) {
             if (children.at(i)->parentItem() == nullptr) {
                 if ((children.at(i)->type() == AVWidget || children.at(i)->type() == TransitionWidget)) {
                     if (!static_cast <AbstractClipItem *>(children.at(i))->isItemLocked()) {
                         children.at(i)->setFlag(QGraphicsItem::ItemIsMovable, true);
                         children.at(i)->setSelected(selectItems);
                     }
                 } else if (children.at(i)->type() == GroupWidget) {
                     children.at(i)->setFlag(QGraphicsItem::ItemIsMovable, true);
                     children.at(i)->setSelected(selectItems);
                 }
             }
         }
         KdenliveSettings::setSnaptopoints(snap);
     }
 }
 
 GenTime CustomTrackView::groupSelectedItems(QList<QGraphicsItem *> selection, bool createNewGroup, bool selectNewGroup)
 {
     QMutexLocker lock(&m_selectionMutex);
     if (m_selectionGroup) {
         qCDebug(KDENLIVE_LOG) << "///// ERROR, TRYING TO OVERRIDE EXISTING GROUP";
         return GenTime();
     }
     if (selection.isEmpty()) {
         selection = m_scene->selectedItems();
     }
     // Split groups and items
     QSet <QGraphicsItemGroup *> groupsList;
     QSet <QGraphicsItem *> itemsList;
 
     for (int i = 0; i < selection.count(); ++i) {
         if (selectNewGroup) {
             selection.at(i)->setSelected(true);
         }
         if (selection.at(i)->type() == GroupWidget) {
             AbstractGroupItem *it = static_cast <AbstractGroupItem *>(selection.at(i));
             while (it->parentItem() && it->parentItem()->type() == GroupWidget) {
                 it = static_cast <AbstractGroupItem *>(it->parentItem());
             }
             if (!it || it->isItemLocked()) {
                 continue;
             }
             groupsList.insert(it);
         }
     }
     bool lockGroup = false;
     for (int i = 0; i < selection.count(); ++i) {
         if (selection.at(i)->type() == AVWidget || selection.at(i)->type() == TransitionWidget) {
             if (selection.at(i)->parentItem() && selection.at(i)->parentItem()->type() == GroupWidget) {
                 AbstractGroupItem *it = static_cast <AbstractGroupItem *>(selection.at(i)->parentItem());
                 while (it->parentItem() && it->parentItem()->type() == GroupWidget) {
                     it = static_cast <AbstractGroupItem *>(it->parentItem());
                 }
                 if (!it || it->isItemLocked()) {
                     continue;
                 }
                 groupsList.insert(it);
             } else {
                 AbstractClipItem *it = static_cast<AbstractClipItem *>(selection.at(i));
                 if (!it) {
                     continue;
                 }
                 if (it->isItemLocked()) {
                     lockGroup = true;
                 }
                 itemsList.insert(selection.at(i));
             }
         }
     }
     if (itemsList.isEmpty() && groupsList.isEmpty()) {
         return GenTime();
     }
     if (itemsList.count() == 1 && groupsList.isEmpty()) {
         // only one item selected:
         QSetIterator<QGraphicsItem *> it(itemsList);
         m_dragItem = static_cast<AbstractClipItem *>(it.next());
         m_dragItem->setMainSelectedClip(true);
         m_dragItem->setSelected(true);
         return m_dragItem->startPos();
     }
 
     QRectF rectUnion;
     // Find top left position of selection
     foreach (const QGraphicsItemGroup *value, groupsList) {
         rectUnion = rectUnion.united(value->sceneBoundingRect());
     }
     foreach (const QGraphicsItem *value, itemsList) {
         rectUnion = rectUnion.united(value->sceneBoundingRect());
     }
     bool snap = KdenliveSettings::snaptopoints();
     KdenliveSettings::setSnaptopoints(false);
     if (createNewGroup) {
         AbstractGroupItem *newGroup = m_document->clipManager()->createGroup();
         newGroup->setPos(rectUnion.left(), rectUnion.top() - 1);
         QPointF diff = newGroup->pos();
         newGroup->setTransform(QTransform::fromTranslate(-diff.x(), -diff.y()), true);
         //newGroup->translate((int) -rectUnion.left(), (int) -rectUnion.top() + 1);
 
         // Check if we are trying to include a group in a group
         foreach (QGraphicsItemGroup *value, groupsList) {
             newGroup->addItem(value);
         }
 
         foreach (QGraphicsItemGroup *value, groupsList) {
             QList<QGraphicsItem *> children = value->childItems();
             for (int i = 0; i < children.count(); ++i) {
                 if (children.at(i)->type() == AVWidget || children.at(i)->type() == TransitionWidget) {
                     itemsList.insert(children.at(i));
                 }
             }
             AbstractGroupItem *grp = static_cast<AbstractGroupItem *>(value);
             m_document->clipManager()->removeGroup(grp);
             if (grp == m_selectionGroup) {
                 m_selectionGroup = nullptr;
             }
             scene()->destroyItemGroup(grp);
         }
 
         foreach (QGraphicsItem *value, itemsList) {
             newGroup->addItem(value);
         }
         if (lockGroup) {
             newGroup->setItemLocked(true);
         }
         scene()->addItem(newGroup);
         KdenliveSettings::setSnaptopoints(snap);
         if (selectNewGroup) {
             newGroup->setSelected(true);
         }
         return newGroup->startPos();
     } else {
         m_selectionGroup = new AbstractGroupItem(m_document->fps());
         m_selectionGroup->setPos(rectUnion.left(), rectUnion.top() - 1);
         QPointF diff = m_selectionGroup->pos();
         //m_selectionGroup->translate((int) - rectUnion.left(), (int) -rectUnion.top() + 1);
         m_selectionGroup->setTransform(QTransform::fromTranslate(- diff.x(), -diff.y()), true);
 
         scene()->addItem(m_selectionGroup);
         foreach (QGraphicsItemGroup *value, groupsList) {
             m_selectionGroup->addItem(value);
         }
         foreach (QGraphicsItem *value, itemsList) {
             m_selectionGroup->addItem(value);
         }
         KdenliveSettings::setSnaptopoints(snap);
         if (m_selectionGroup) {
             if (selectNewGroup) {
                 m_selectionGroup->setSelected(true);
             }
             return m_selectionGroup->startPos();
         }
     }
     return GenTime();
 }
 
 void CustomTrackView::mouseDoubleClickEvent(QMouseEvent *event)
 {
     // Check if double click on guide
     QList<QGraphicsItem *> collisionList = items(event->pos());
     for (int i = 0; i < collisionList.count(); ++i) {
         if (collisionList.at(i)->type() == GUIDEITEM) {
             Guide *editGuide = static_cast<Guide *>(collisionList.at(i));
             if (editGuide) {
                 slotEditGuide(editGuide->info());
                 event->accept();
                 return;
             }
         }
     }
     if (m_dragItem && m_dragItem->keyframesCount() > 0) {
         // add keyframe
         GenTime keyFramePos = GenTime((int)(mapToScene(event->pos()).x()), m_document->fps()) - m_dragItem->startPos();// + m_dragItem->cropStart();
         int single = m_dragItem->keyframesCount();
         double val = m_dragItem->getKeyFrameClipHeight(mapToScene(event->pos()).y() - m_dragItem->scenePos().y());
         ClipItem *item = static_cast <ClipItem *>(m_dragItem);
         QDomElement oldEffect = item->selectedEffect().cloneNode().toElement();
         if (single == 1) {
             item->insertKeyframe(m_document->getProfileInfo(), item->getEffectAtIndex(item->selectedEffectIndex()), (item->cropStart() + item->cropDuration()).frames(m_document->fps()) - 1, -1, true);
         }
         //QString previous = item->keyframes(item->selectedEffectIndex());
         item->insertKeyframe(m_document->getProfileInfo(), item->getEffectAtIndex(item->selectedEffectIndex()), keyFramePos.frames(m_document->fps()), val);
         //QString next = item->keyframes(item->selectedEffectIndex());
         QDomElement newEffect = item->selectedEffect().cloneNode().toElement();
         EditEffectCommand *command = new EditEffectCommand(this, item->track(), item->startPos(), oldEffect, newEffect, item->selectedEffectIndex(), false, false, true);
         m_commandStack->push(command);
         updateEffect(item->track(), item->startPos(), item->selectedEffect());
         emit clipItemSelected(item, item->selectedEffectIndex());
     } else if (m_dragItem && !m_dragItem->isItemLocked()) {
         editItemDuration();
     }
 }
 
 void CustomTrackView::editItemDuration()
 {
     AbstractClipItem *item;
     if (m_dragItem) {
         item = m_dragItem;
     } else {
         if (m_scene->selectedItems().count() == 1) {
             item = static_cast <AbstractClipItem *>(m_scene->selectedItems().at(0));
         } else {
             if (m_scene->selectedItems().empty()) {
                 emit displayMessage(i18n("Cannot find clip to edit"), ErrorMessage);
             } else {
                 emit displayMessage(i18n("Cannot edit the duration of multiple items"), ErrorMessage);
             }
             return;
         }
     }
 
     if (!item) {
         emit displayMessage(i18n("Cannot find clip to edit"), ErrorMessage);
         return;
     }
 
     if (item->type() == GroupWidget || (item->parentItem() && item->parentItem()->type() == GroupWidget)) {
         emit displayMessage(i18n("Cannot edit an item in a group"), ErrorMessage);
         return;
     }
 
     if (!item->isItemLocked()) {
         GenTime minimum;
         GenTime maximum;
         if (item->type() == TransitionWidget) {
             getTransitionAvailableSpace(item, minimum, maximum);
         } else {
             getClipAvailableSpace(item, minimum, maximum);
         }
 
         QPointer<ClipDurationDialog> d = new ClipDurationDialog(item,
                 m_document->timecode(), minimum, maximum, this);
         if (d->exec() == QDialog::Accepted) {
             ItemInfo clipInfo = item->info();
             ItemInfo startInfo = clipInfo;
             if (item->type() == TransitionWidget) {
                 // move & resize transition
                 clipInfo.startPos = d->startPos();
                 clipInfo.endPos = clipInfo.startPos + d->duration();
                 clipInfo.track = item->track();
                 MoveTransitionCommand *command = new MoveTransitionCommand(this, startInfo, clipInfo, true, true);
                 updateTrackDuration(clipInfo.track, command);
                 m_commandStack->push(command);
             } else {
                 // move and resize clip
                 ClipItem *clip = static_cast<ClipItem *>(item);
                 QUndoCommand *moveCommand = new QUndoCommand();
                 moveCommand->setText(i18n("Edit clip"));
                 if (d->duration() < item->cropDuration() || d->cropStart() != clipInfo.cropStart) {
                     // duration was reduced, so process it first
                     clipInfo.endPos = clipInfo.startPos + d->duration();
                     clipInfo.cropStart = d->cropStart();
 
                     resizeClip(startInfo, clipInfo);
                     // TODO: find a way to apply adjusteffect after the resize command was done / undone
                     new ResizeClipCommand(this, startInfo, clipInfo, false, true, moveCommand);
                     adjustEffects(clip, startInfo, moveCommand);
                 }
 
                 if (d->startPos() != clipInfo.startPos) {
                     startInfo = clipInfo;
                     clipInfo.startPos = d->startPos();
                     clipInfo.endPos = item->endPos() + (clipInfo.startPos - startInfo.startPos);
                     new MoveClipCommand(this, startInfo, clipInfo, false, true, moveCommand);
                 }
 
                 if (d->duration() > item->cropDuration()) {
                     // duration was increased, so process it after move
                     startInfo = clipInfo;
                     clipInfo.endPos = clipInfo.startPos + d->duration();
                     clipInfo.cropStart = d->cropStart();
 
                     resizeClip(startInfo, clipInfo);
                     // TODO: find a way to apply adjusteffect after the resize command was done / undone
                     new ResizeClipCommand(this, startInfo, clipInfo, false, true, moveCommand);
                     adjustEffects(clip, startInfo, moveCommand);
                 }
                 updateTrackDuration(clipInfo.track, moveCommand);
                 m_commandStack->push(moveCommand);
             }
         }
         delete d;
     } else {
         emit displayMessage(i18n("Item is locked"), ErrorMessage);
     }
 }
 
 void CustomTrackView::contextMenuEvent(QContextMenuEvent *event)
 {
     if (m_operationMode == KeyFrame) {
         displayKeyframesMenu(event->globalPos(), m_dragItem);
     } else {
         displayContextMenu(event->globalPos(), m_dragItem);
     }
     event->accept();
 }
 
 void CustomTrackView::displayKeyframesMenu(QPoint pos, AbstractClipItem *clip)
 {
     if (!m_timelineContextKeyframeMenu) {
         m_timelineContextKeyframeMenu = new QMenu(this);
         // Keyframe type widget
         m_selectKeyframeType = new KSelectAction(KoIconUtils::themedIcon(QStringLiteral("keyframes")), i18n("Interpolation"), this);
         QAction *discrete = new QAction(KoIconUtils::themedIcon(QStringLiteral("discrete")), i18n("Discrete"), this);
         discrete->setData((int) mlt_keyframe_discrete);
         discrete->setCheckable(true);
         m_selectKeyframeType->addAction(discrete);
         QAction *linear = new QAction(KoIconUtils::themedIcon(QStringLiteral("linear")), i18n("Linear"), this);
         linear->setData((int) mlt_keyframe_linear);
         linear->setCheckable(true);
         m_selectKeyframeType->addAction(linear);
         QAction *curve = new QAction(KoIconUtils::themedIcon(QStringLiteral("smooth")), i18n("Smooth"), this);
         curve->setData((int) mlt_keyframe_smooth);
         curve->setCheckable(true);
         m_selectKeyframeType->addAction(curve);
         m_timelineContextKeyframeMenu->addAction(m_selectKeyframeType);
         m_attachKeyframeToEnd = new QAction(i18n("Attach keyframe to end"), this);
         m_attachKeyframeToEnd->setCheckable(true);
         m_timelineContextKeyframeMenu->addAction(m_attachKeyframeToEnd);
         connect(m_selectKeyframeType, SIGNAL(triggered(QAction *)), this, SLOT(slotEditKeyframeType(QAction *)));
         connect(m_attachKeyframeToEnd, &QAction::triggered, this, &CustomTrackView::slotAttachKeyframeToEnd);
     }
     m_attachKeyframeToEnd->setChecked(clip->isAttachedToEnd());
     m_selectKeyframeType->setCurrentAction(clip->parseKeyframeActions(m_selectKeyframeType->actions()));
     m_timelineContextKeyframeMenu->exec(pos);
 }
 
 void CustomTrackView::slotAttachKeyframeToEnd(bool attach)
 {
     ClipItem *item = static_cast <ClipItem *>(m_dragItem);
     QDomElement oldEffect = item->selectedEffect().cloneNode().toElement();
     item->attachKeyframeToEnd(item->getEffectAtIndex(item->selectedEffectIndex()), attach);
     QDomElement newEffect = item->selectedEffect().cloneNode().toElement();
     EditEffectCommand *command = new EditEffectCommand(this, item->track(), item->startPos(), oldEffect, newEffect, item->selectedEffectIndex(), false, false, false);
     m_commandStack->push(command);
     updateEffect(item->track(), item->startPos(), item->selectedEffect());
     emit clipItemSelected(item, item->selectedEffectIndex());
 }
 
 void CustomTrackView::slotEditKeyframeType(QAction *action)
 {
     int type = action->data().toInt();
     ClipItem *item = static_cast <ClipItem *>(m_dragItem);
     QDomElement oldEffect = item->selectedEffect().cloneNode().toElement();
     item->editKeyframeType(item->getEffectAtIndex(item->selectedEffectIndex()), type);
     QDomElement newEffect = item->selectedEffect().cloneNode().toElement();
     EditEffectCommand *command = new EditEffectCommand(this, item->track(), item->startPos(), oldEffect, newEffect, item->selectedEffectIndex(), false, false, false);
     m_commandStack->push(command);
     updateEffect(item->track(), item->startPos(), item->selectedEffect());
     emit clipItemSelected(item, item->selectedEffectIndex());
 }
 
 void CustomTrackView::displayContextMenu(QPoint pos, AbstractClipItem *clip)
 {
     bool isGroup = clip != nullptr && clip->parentItem() && clip->parentItem()->type() == GroupWidget && clip->parentItem() != m_selectionGroup;
     m_deleteGuide->setEnabled(m_dragGuide != nullptr);
     m_editGuide->setEnabled(m_dragGuide != nullptr);
     m_markerMenu->clear();
     m_markerMenu->setEnabled(false);
     if (clip == nullptr || m_dragGuide) {
         m_timelineContextMenu->popup(pos);
     } else if (isGroup) {
         m_pasteEffectsAction->setEnabled(m_copiedItems.count() == 1);
         m_ungroupAction->setEnabled(true);
         if (clip->type() == AVWidget) {
             ClipItem *item = static_cast <ClipItem *>(clip);
             m_disableClipAction->setChecked(item->clipState() == PlaylistState::Disabled);
         } else {
             m_disableClipAction->setChecked(false);
         }
         updateClipTypeActions(nullptr);
         m_timelineContextClipMenu->popup(pos);
     } else {
         m_ungroupAction->setEnabled(false);
         if (clip->type() == AVWidget) {
             ClipItem *item = static_cast <ClipItem *>(clip);
             m_disableClipAction->setChecked(item->clipState() == PlaylistState::Disabled);
             //build go to marker menu
             ClipController *controller = m_document->getClipController(item->getBinId());
             if (controller) {
                 QList<CommentedTime> markers = controller->commentedSnapMarkers();
                 int offset = (item->startPos() - item->cropStart()).frames(m_document->fps());
                 if (!markers.isEmpty()) {
                     for (int i = 0; i < markers.count(); ++i) {
                         int frame = (int) markers.at(i).time().frames(m_document->timecode().fps());
                         QString position = m_document->timecode().getTimecode(markers.at(i).time()) + QLatin1Char(' ') + markers.at(i).comment();
                         QAction *go = m_markerMenu->addAction(position);
                         go->setData(frame + offset);
                     }
                 }
                 m_markerMenu->setEnabled(!m_markerMenu->isEmpty());
             }
             updateClipTypeActions(item);
             m_pasteEffectsAction->setEnabled(m_copiedItems.count() == 1);
             m_timelineContextClipMenu->popup(pos);
         } else if (clip->type() == TransitionWidget) {
             m_timelineContextTransitionMenu->exec(pos);
         }
     }
 }
 
 void CustomTrackView::activateMonitor()
 {
     emit activateDocumentMonitor();
 }
 
 void CustomTrackView::insertClipCut(const QString &id, int in, int out)
 {
     resetSelectionGroup();
     ItemInfo info;
     info.startPos = GenTime();
     info.cropStart = GenTime(in, m_document->fps());
     info.endPos = GenTime(out - in, m_document->fps());
     info.cropDuration = info.endPos - info.startPos;
     info.track = 0;
 
     // Check if clip can be inserted at that position
     ItemInfo pasteInfo = info;
     pasteInfo.startPos = GenTime(m_cursorPos, m_document->fps());
     pasteInfo.endPos = pasteInfo.startPos + info.endPos;
     PlaylistState::ClipState state = PlaylistState::Original;
     if (KdenliveSettings::splitaudio()) {
         if (m_timeline->videoTarget > -1) {
             pasteInfo.track = m_timeline->videoTarget;
             if (m_timeline->audioTarget == -1) {
                 state = PlaylistState::VideoOnly;
             }
         } else if (m_timeline->audioTarget > -1) {
             pasteInfo.track = m_timeline->audioTarget;
             state = PlaylistState::AudioOnly;
         } else {
             emit displayMessage(i18n("Please select target track(s) to perform operation"), ErrorMessage);
             return;
         }
     } else {
         pasteInfo.track = selectedTrack();
     }
     if (m_timeline->getTrackInfo(pasteInfo.track).isLocked) {
         emit displayMessage(i18n("Cannot perform operation on a locked track"), ErrorMessage);
         return;
     }
     bool ok = canBePastedTo(pasteInfo, AVWidget);
     if (!ok) {
         // Cannot be inserted at cursor pos, insert at end of track
         int duration = GenTime(m_timeline->track(pasteInfo.track)->length()).frames(m_document->fps());
         pasteInfo.startPos = GenTime(duration, m_document->fps());
         pasteInfo.endPos = pasteInfo.startPos + info.endPos;
         ok = canBePastedTo(pasteInfo, AVWidget);
     }
     if (!ok) {
         emit displayMessage(i18n("Cannot insert clip in timeline"), ErrorMessage);
         return;
     }
 
     // Add refresh command for undo
     QUndoCommand *addCommand = new QUndoCommand();
     addCommand->setText(i18n("Add timeline clip"));
     new AddTimelineClipCommand(this, id, pasteInfo, EffectsList(), state, true, false, true, addCommand);
 
     // Automatic audio split
     if (KdenliveSettings::splitaudio() && m_timeline->audioTarget > -1 && m_timeline->videoTarget > -1) {
         if (!m_timeline->getTrackInfo(m_timeline->audioTarget).isLocked && m_document->getBinClip(id)->isSplittable()) {
             splitAudio(false, pasteInfo, m_timeline->audioTarget, addCommand);
         }
     } else {
         updateTrackDuration(pasteInfo.track, addCommand);
     }
     m_commandStack->push(addCommand);
 
     selectClip(true, false);
 }
 
 bool CustomTrackView::insertDropClips(const QMimeData *mimeData, const QPoint &pos)
 {
     m_clipDrag = mimeData->hasFormat(QStringLiteral("kdenlive/clip")) || mimeData->hasFormat(QStringLiteral("kdenlive/producerslist"));
     // This is not a clip drag, maybe effect or other...
     if (!m_clipDrag) {
         return false;
     }
     m_scene->clearSelection();
     if (m_dragItem) {
         m_dragItem->setMainSelectedClip(false);
     }
     m_dragItem = nullptr;
     resetSelectionGroup(false);
     QPointF framePos = mapToScene(pos);
     int track = getTrackFromPos(framePos.y());
     QMutexLocker lock(&m_selectionMutex);
     if (track <= 0 || track > m_timeline->tracksCount() - 1 || m_timeline->getTrackInfo(track).isLocked) {
         return true;
     }
     if (mimeData->hasFormat(QStringLiteral("kdenlive/clip"))) {
         QStringList list = QString(mimeData->data(QStringLiteral("kdenlive/clip"))).split(QLatin1Char(';'));
         ProjectClip *clip = m_document->getBinClip(list.at(0));
         if (clip == nullptr) {
             //qCDebug(KDENLIVE_LOG) << " WARNING))))))))) CLIP NOT FOUND : " << list.at(0);
             return false;
         }
         if (!clip->isReady()) {
             emit displayMessage(i18n("Clip not ready"), ErrorMessage);
             return false;
         }
 
         // Check if clip can be inserted at that position
         ItemInfo info;
         info.startPos = GenTime((int)(framePos.x() + 0.5), m_document->fps());
         info.cropStart = GenTime(list.at(1).toInt(), m_document->fps());
         info.cropDuration = GenTime(list.at(2).toInt() - list.at(1).toInt() + 1, m_document->fps());
         info.endPos = info.startPos + info.cropDuration;
         info.track = track;
         framePos.setX((int)(framePos.x() + 0.5));
         framePos.setY(getPositionFromTrack(track));
         if (m_scene->editMode() == TimelineMode::NormalEdit && !canBePastedTo(info, AVWidget)) {
             return true;
         }
         QList<int> lockedTracks;
         bool allowAudioOnly = false;
         if (KdenliveSettings::splitaudio()) {
             if (clip->clipType() == Audio) {
                 allowAudioOnly = true;
             }
         }
         for (int i = 1; i < m_timeline->tracksCount(); ++i) {
             TrackInfo nfo = m_timeline->getTrackInfo(i);
             if (nfo.isLocked || (allowAudioOnly && nfo.type == VideoTrack)) {
                 lockedTracks << i;
             }
         }
         if (lockedTracks.contains(track)) {
             return false;
         }
 
         m_selectionGroup = new AbstractGroupItem(m_document->fps());
         ClipItem *item = new ClipItem(clip, info, m_document->fps(), 1.0, 1, getFrameWidth());
         connect(item, &AbstractClipItem::selectItem, this, &CustomTrackView::slotSelectItem);
         m_selectionGroup->addItem(item);
 
         QList<GenTime> offsetList;
         offsetList.append(info.endPos);
         updateSnapPoints(nullptr, offsetList);
 
         m_selectionGroup->setProperty("locked_tracks", QVariant::fromValue(lockedTracks));
         m_selectionGroup->setPos(framePos);
         scene()->addItem(m_selectionGroup);
         m_selectionGroup->setSelected(true);
     } else if (mimeData->hasFormat(QStringLiteral("kdenlive/producerslist"))) {
         QStringList ids = QString(mimeData->data(QStringLiteral("kdenlive/producerslist"))).split(QLatin1Char(';'));
         QList<GenTime> offsetList;
         QList<ItemInfo> infoList;
         GenTime start = GenTime((int)(framePos.x() + 0.5), m_document->fps());
         framePos.setX((int)(framePos.x() + 0.5));
         framePos.setY(getPositionFromTrack(track));
 
         // Check if user dragged a folder
         for (int i = 0; i < ids.size(); ++i) {
             if (ids.at(i).startsWith(QLatin1String("#"))) {
                 QString folderId = ids.at(i);
                 folderId.remove(0, 1);
                 QStringList clipsInFolder = m_document->getBinFolderClipIds(folderId);
                 ids.removeAt(i);
                 for (int j = 0; j < clipsInFolder.count(); j++) {
                     ids.insert(i + j, clipsInFolder.at(j));
                 }
             }
         }
 
         // Check if clips can be inserted at that position
         bool allowAudioOnly = false;
         for (int i = 0; i < ids.size(); ++i) {
             QString clipData = ids.at(i);
             QString clipId = clipData.section(QLatin1Char('/'), 0, 0);
             ProjectClip *clip = m_document->getBinClip(clipId);
             if (!clip || !clip->isReady()) {
                 emit displayMessage(i18n("Clip not ready"), ErrorMessage);
                 return false;
             }
             ItemInfo info;
             info.startPos = start;
             if (clipData.contains(QLatin1Char('/'))) {
                 // this is a clip zone, set in / out
                 int in = clipData.section(QLatin1Char('/'), 1, 1).toInt();
                 int out = clipData.section(QLatin1Char('/'), 2, 2).toInt();
                 info.cropStart = GenTime(in, m_document->fps());
                 info.cropDuration = GenTime(out - in + 1, m_document->fps());
             } else {
                 info.cropDuration = clip->duration();
             }
             info.endPos = info.startPos + info.cropDuration;
             info.track = track;
             infoList.append(info);
             start += info.cropDuration;
             if (KdenliveSettings::splitaudio() && clip->clipType() == Audio) {
                 allowAudioOnly = true;
             }
         }
         if (m_scene->editMode() == TimelineMode::NormalEdit && !canBePastedTo(infoList, AVWidget)) {
             return true;
         }
         QList<int> lockedTracks;
         bool locked = false;
         for (int i = 1; i < m_timeline->tracksCount(); ++i) {
             TrackInfo nfo = m_timeline->getTrackInfo(i);
             if (nfo.isLocked) {
                 lockedTracks << i;
             } else if (allowAudioOnly && nfo.type == VideoTrack) {
                 if (track == i) {
                     locked = true;
                 }
                 lockedTracks << i;
             }
         }
         if (locked) {
             return false;
         }
         if (ids.size() > 1) {
             m_selectionGroup = new AbstractGroupItem(m_document->fps());
         }
         start = GenTime();
         for (int i = 0; i < ids.size(); ++i) {
             QString clipData = ids.at(i);
             QString clipId = clipData.section(QLatin1Char('/'), 0, 0);
             ProjectClip *clip = m_document->getBinClip(clipId);
             ItemInfo info;
             info.startPos = start;
             if (clipData.contains(QLatin1Char('/'))) {
                 // this is a clip zone, set in / out
                 int in = clipData.section(QLatin1Char('/'), 1, 1).toInt();
                 int out = clipData.section(QLatin1Char('/'), 2, 2).toInt();
                 info.cropStart = GenTime(in, m_document->fps());
                 info.cropDuration = GenTime(out - in + 1, m_document->fps());
             } else {
                 info.cropDuration = clip->duration();
             }
             info.endPos = info.startPos + info.cropDuration;
             info.track = 0;
             start += info.cropDuration;
             offsetList.append(start);
             ClipItem *item = new ClipItem(clip, info, m_document->fps(), 1.0, 1, getFrameWidth(), true);
             connect(item, &AbstractClipItem::selectItem, this, &CustomTrackView::slotSelectItem);
             item->setPos(info.startPos.frames(m_document->fps()), item->itemOffset());
             if (ids.size() > 1) {
                 m_selectionGroup->addItem(item);
             } else {
                 m_dragItem = item;
                 m_dragItem->setMainSelectedClip(true);
             }
             item->setSelected(true);
         }
 
         updateSnapPoints(nullptr, offsetList);
 
         if (m_selectionGroup) {
             m_selectionGroup->setProperty("locked_tracks", QVariant::fromValue(lockedTracks));
             scene()->addItem(m_selectionGroup);
             m_selectionGroup->setPos(framePos);
         } else if (m_dragItem) {
             m_dragItem->setProperty("locked_tracks", QVariant::fromValue(lockedTracks));
             scene()->addItem(m_dragItem);
             m_dragItem->setPos(framePos);
         }
         //m_selectionGroup->setZValue(10);
     }
     return true;
 }
 
 void CustomTrackView::dragEnterEvent(QDragEnterEvent *event)
 {
     if (insertDropClips(event->mimeData(), event->pos())) {
         if (event->source() == this) {
             event->setDropAction(Qt::MoveAction);
             event->accept();
         } else {
             event->setDropAction(Qt::MoveAction);
             event->acceptProposedAction();
         }
     } else {
         QGraphicsView::dragEnterEvent(event);
     }
 }
 
 bool CustomTrackView::itemCollision(AbstractClipItem *item, const ItemInfo &newPos)
 {
     QRectF shape = QRectF(newPos.startPos.frames(m_document->fps()), getPositionFromTrack(newPos.track) + 1, (newPos.endPos - newPos.startPos).frames(m_document->fps()) - 0.02, m_tracksHeight - 1);
     QList<QGraphicsItem *> collindingItems = scene()->items(shape, Qt::IntersectsItemShape);
     collindingItems.removeAll(item);
     if (collindingItems.isEmpty()) {
         return false;
     } else {
         for (int i = 0; i < collindingItems.count(); ++i) {
             QGraphicsItem *collision = collindingItems.at(i);
             if (collision->type() == item->type()) {
                 // Collision
                 //qCDebug(KDENLIVE_LOG) << "// COLLISIION DETECTED";
                 return true;
             }
         }
         return false;
     }
 }
 
 void CustomTrackView::slotRefreshEffects(ClipItem *clip)
 {
     int track = clip->track();
     GenTime pos = clip->startPos();
     if (!m_timeline->track(track)->removeEffect(pos.seconds(), -1, false)) {
         emit displayMessage(i18n("Problem deleting effect"), ErrorMessage);
         return;
     }
     bool success = true;
     for (int i = 0; i < clip->effectsCount(); ++i) {
         if (!m_timeline->track(track)->addEffect(pos.seconds(), EffectsController::getEffectArgs(m_document->getProfileInfo(), clip->effect(i)))) {
             success = false;
         }
     }
     if (!success) {
         emit displayMessage(i18n("Problem adding effect to clip"), ErrorMessage);
     }
     if (clip->hasVisibleVideo()) {
         monitorRefresh(clip->info());
     }
 }
 
 void CustomTrackView::addEffect(int track, GenTime pos, const QDomElement &effect)
 {
     if (pos < GenTime()) {
         // Add track effect
         if (effect.attribute(QStringLiteral("id")) == QLatin1String("speed")) {
             emit displayMessage(i18n("Cannot add speed effect to track"), ErrorMessage);
             return;
         }
         clearSelection();
         m_timeline->addTrackEffect(track, effect);
         if (effect.attribute(QStringLiteral("type")) != QLatin1String("audio")) {
             monitorRefresh();
         }
         emit updateTrackEffectState(track);
         emit showTrackEffects(track, m_timeline->getTrackInfo(track));
         return;
     }
     ClipItem *clip = getClipItemAtStart(pos, track);
     if (clip) {
         // Special case: speed effect
         if (effect.attribute(QStringLiteral("id")) == QLatin1String("speed")) {
             QLocale locale;
             locale.setNumberOptions(QLocale::OmitGroupSeparator);
             double speed = locale.toDouble(EffectsList::parameter(effect, QStringLiteral("speed"))) / 100.0;
             int strobe = EffectsList::parameter(effect, QStringLiteral("strobe")).toInt();
             if (strobe == 0) {
                 strobe = 1;
             }
             doChangeClipSpeed(clip->info(), clip->speedIndependantInfo(), clip->clipState(), speed, strobe, clip->getBinId());
             EffectsParameterList params = clip->addEffect(m_document->getProfileInfo(), effect);
             if (clip->isSelected()) {
                 emit clipItemSelected(clip);
             }
             monitorRefresh(clip->info(), true);
             return;
         }
         EffectsParameterList params = clip->addEffect(m_document->getProfileInfo(), effect);
         if (!m_timeline->track(track)->addEffect(pos.seconds(), params)) {
             emit displayMessage(i18n("Problem adding effect to clip"), ErrorMessage);
             clip->deleteEffect(params.paramValue(QStringLiteral("kdenlive_ix")).toInt());
         } else {
             clip->setSelectedEffect(params.paramValue(QStringLiteral("kdenlive_ix")).toInt());
             if (clip->hasVisibleVideo() && effect.attribute(QStringLiteral("type")) != QLatin1String("audio")) {
                 monitorRefresh(clip->info(), true);
             }
         }
         if (clip->isMainSelectedClip()) {
             emit clipItemSelected(clip);
         }
     } else {
         emit displayMessage(i18n("Cannot find clip to add effect"), ErrorMessage);
     }
 }
 
 void CustomTrackView::deleteEffect(int track, const GenTime &pos, const QDomElement &effect)
 {
     int index = effect.attribute(QStringLiteral("kdenlive_ix")).toInt();
     if (pos < GenTime()) {
         // Delete track effect
         if (!m_timeline->removeTrackEffect(track, index, effect)) {
             emit displayMessage(i18n("Problem deleting effect"), ErrorMessage);
         }
         emit updateTrackEffectState(track);
         if (effect.attribute(QStringLiteral("type")) != QLatin1String("audio")) {
             monitorRefresh();
         }
         emit showTrackEffects(track, m_timeline->getTrackInfo(track));
         return;
     }
     // Special case: speed effect
     if (effect.attribute(QStringLiteral("id")) == QLatin1String("speed")) {
         ClipItem *clip = getClipItemAtStart(pos, track);
         if (clip) {
             doChangeClipSpeed(clip->info(), clip->speedIndependantInfo(), clip->clipState(), 1.0, 1, clip->getBinId(), true);
             clip->deleteEffect(index);
             monitorRefresh(clip->info());
             emit clipItemSelected(clip);
             return;
         }
     }
     if (!m_timeline->track(track)->removeEffect(pos.seconds(), index, true)) {
         //qCDebug(KDENLIVE_LOG) << "// ERROR REMOV EFFECT: " << index << ", DISABLE: " << effect.attribute("disable");
         emit displayMessage(i18n("Problem deleting effect"), ErrorMessage);
         return;
     }
     ClipItem *clip = getClipItemAtStart(pos, track);
     if (clip) {
         if (clip->deleteEffect(index) && clip->hasVisibleVideo()) {
             monitorRefresh(clip->info(), true);
         }
         if (clip->isMainSelectedClip()) {
             emit clipItemSelected(clip);
         }
     }
 }
 
 void CustomTrackView::slotAddGroupEffect(const QDomElement &effect, AbstractGroupItem *group, AbstractClipItem *dropTarget)
 {
     QList<QGraphicsItem *> itemList = group->childItems();
     QUndoCommand *effectCommand = new QUndoCommand();
     QString effectName;
     int offset = effect.attribute(QStringLiteral("clipstart")).toInt();
     QDomElement namenode = effect.firstChildElement(QStringLiteral("name"));
     if (!namenode.isNull()) {
         effectName = i18n(namenode.text().toUtf8().data());
     } else {
         effectName = i18n("effect");
     }
     effectCommand->setText(i18n("Add %1", effectName));
     for (int i = 0; i < itemList.count(); ++i) {
         if (itemList.at(i)->type() == GroupWidget) {
             itemList << itemList.at(i)->childItems();
         }
         if (itemList.at(i)->type() == AVWidget) {
             ClipItem *item = static_cast <ClipItem *>(itemList.at(i));
             if (effect.tagName() == QLatin1String("effectgroup")) {
                 QDomNodeList effectlist = effect.elementsByTagName(QStringLiteral("effect"));
                 for (int j = 0; j < effectlist.count(); ++j) {
                     QDomElement subeffect = effectlist.at(j).toElement();
                     if (subeffect.hasAttribute(QStringLiteral("kdenlive_info"))) {
                         // effect is in a group
                         EffectInfo effectInfo;
                         effectInfo.fromString(subeffect.attribute(QStringLiteral("kdenlive_info")));
                         if (effectInfo.groupIndex < 0) {
                             // group needs to be appended
                             effectInfo.groupIndex = item->nextFreeEffectGroupIndex();
                             subeffect.setAttribute(QStringLiteral("kdenlive_info"), effectInfo.toString());
                         }
                     }
                     processEffect(item, subeffect.cloneNode().toElement(), offset, effectCommand);
                 }
             } else {
                 processEffect(item, effect.cloneNode().toElement(), offset, effectCommand);
             }
         }
     }
     if (effectCommand->childCount() > 0) {
         m_commandStack->push(effectCommand);
     } else {
         delete effectCommand;
     }
     if (dropTarget) {
         clearSelection(false);
         m_dragItem = dropTarget;
         m_dragItem->setSelected(true);
         m_dragItem->setMainSelectedClip(true);
         emit clipItemSelected(static_cast<ClipItem *>(dropTarget));
     }
 }
 
 void CustomTrackView::slotAddEffect(ClipItem *clip, const QDomElement &effect, int track)
 {
     if (clip == nullptr) {
         // Track effect
         slotAddTrackEffect(effect, track);
         return;
     } else {
         slotAddEffect(effect, clip->startPos(), clip->track());
     }
 }
 
 void CustomTrackView::slotDropEffect(ClipItem *clip, const QDomElement &effect, GenTime pos, int track)
 {
     if (clip == nullptr) {
         return;
     }
     slotAddEffect(effect, pos, track);
     if (clip->parentItem()) {
         // Clip is in a group, should not happen
         //qCDebug(KDENLIVE_LOG)<<"/// DROPPED ON ITEM IN GRP";
     } else if (clip != m_dragItem) {
         clearSelection(false);
         m_dragItem = clip;
         m_dragItem->setMainSelectedClip(true);
         clip->setSelected(true);
         emit clipItemSelected(clip);
     }
 }
 
 void CustomTrackView::slotSelectItem(AbstractClipItem *item)
 {
     clearSelection(false);
     m_dragItem = item;
     m_dragItem->setMainSelectedClip(true);
     item->setSelected(true);
     if (item->type() == AVWidget) {
         emit clipItemSelected((ClipItem *)item);
     } else if (item->type() == TransitionWidget) {
         emit transitionItemSelected((Transition *)item);
     }
 }
 
 void CustomTrackView::slotDropTransition(ClipItem *clip, const QDomElement &transition, QPointF scenePos)
 {
     if (clip == nullptr) {
         return;
     }
     m_menuPosition = mapFromScene(scenePos);
     slotAddTransitionToSelectedClips(transition, QList<QGraphicsItem *>() << clip);
     m_menuPosition = QPoint();
 }
 
 void CustomTrackView::removeSplitOverlay()
 {
     m_timeline->removeSplitOverlay();
 }
 
 bool CustomTrackView::createSplitOverlay(Mlt::Filter *filter)
 {
     if (!m_dragItem || m_dragItem->type() != AVWidget) {
         //TODO manage split clip
         return false;
     }
     return m_timeline->createOverlay(filter, m_dragItem->track(), m_dragItem->startPos().frames(m_document->fps()));
 }
 
 void CustomTrackView::trimMode(bool enable, int ripplePos)
 {
     if (!enable) {
         m_timeline->removeSplitOverlay();
         emit loadMonitorScene(MonitorSceneDefault, false);
         monitorRefresh();
         return;
     }
     if (!m_dragItem || m_dragItem->type() != AVWidget) {
         qCDebug(KDENLIVE_LOG) << "* * * * *RIPPLEMODE ERROR";
         emit displayMessage(i18n("Select a clip to enter ripple mode"), InformationMessage);
         return;
     }
     if (m_operationMode == ResizeEnd) {
         m_moveOpMode = RollingEnd;
     } else if (m_operationMode == ResizeStart) {
         m_moveOpMode = RollingStart;
     }
 
     if (m_timeline->createRippleWindow(m_dragItem->track(), ripplePos, m_moveOpMode)) {
         monitorRefresh();
     }
 }
 
 AbstractToolManager *CustomTrackView::toolManager(AbstractToolManager::ToolManagerType trimType)
 {
     return m_toolManagers.value(trimType);
 }
 
 void CustomTrackView::slotAddEffectToCurrentItem(const QDomElement &effect)
 {
     slotAddEffect(effect, GenTime(), -1);
 }
 
 void CustomTrackView::slotAddEffect(const QDomElement &effect, const GenTime &pos, int track)
 {
     QList<QGraphicsItem *> itemList;
     QUndoCommand *effectCommand = new QUndoCommand();
     QString effectName;
     int offset = effect.attribute(QStringLiteral("clipstart")).toInt();
     if (effect.tagName() == QLatin1String("effectgroup")) {
         effectName = effect.attribute(QStringLiteral("name"));
     } else {
         QDomElement namenode = effect.firstChildElement(QStringLiteral("name"));
         if (!namenode.isNull()) {
             effectName = i18n(namenode.text().toUtf8().data());
         } else {
             effectName = i18n("effect");
         }
     }
     effectCommand->setText(i18n("Add %1", effectName));
 
     if (track == -1) {
         itemList = scene()->selectedItems();
     } else if (itemList.isEmpty()) {
         ClipItem *clip = getClipItemAtStart(pos, track);
         if (clip) {
             itemList.append(clip);
         }
     }
     if (itemList.isEmpty()) {
         emit displayMessage(i18n("Select a clip if you want to apply an effect"), ErrorMessage);
     }
 
     //expand groups
     for (int i = 0; i < itemList.count(); ++i) {
         if (itemList.at(i)->type() == GroupWidget) {
             QList<QGraphicsItem *> subitems = itemList.at(i)->childItems();
             for (int j = 0; j < subitems.count(); ++j) {
                 if (!itemList.contains(subitems.at(j))) {
                     itemList.append(subitems.at(j));
                 }
             }
         }
     }
 
     for (int i = 0; i < itemList.count(); ++i) {
         if (itemList.at(i)->type() == AVWidget) {
             ClipItem *item = static_cast <ClipItem *>(itemList.at(i));
             if (effect.tagName() == QLatin1String("effectgroup")) {
                 QDomNodeList effectlist = effect.elementsByTagName(QStringLiteral("effect"));
                 for (int j = 0; j < effectlist.count(); ++j) {
                     QDomElement subeffect = effectlist.at(j).toElement();
                     if (subeffect.hasAttribute(QStringLiteral("kdenlive_info"))) {
                         // effect is in a group
                         EffectInfo effectInfo;
                         effectInfo.fromString(subeffect.attribute(QStringLiteral("kdenlive_info")));
                         if (effectInfo.groupIndex < 0) {
                             // group needs to be appended
                             effectInfo.groupIndex = item->nextFreeEffectGroupIndex();
                             subeffect.setAttribute(QStringLiteral("kdenlive_info"), effectInfo.toString());
                         }
                     }
                     processEffect(item, subeffect, offset, effectCommand);
                 }
             } else {
                 processEffect(item, effect, offset, effectCommand);
             }
         }
     }
     if (effectCommand->childCount() > 0) {
         m_commandStack->push(effectCommand);
     } else {
         delete effectCommand;
     }
 }
 
 void CustomTrackView::processEffect(ClipItem *item, const QDomElement &effect, int offset, QUndoCommand *effectCommand)
 {
     if (effect.attribute(QStringLiteral("type")) == QLatin1String("audio")) {
         // Don't add audio effects on video clips
         if (item->clipState() == PlaylistState::VideoOnly || (item->clipType() != Audio && item->clipType() != AV && item->clipType() != Playlist)) {
             /* do not show error message when item is part of a group as the user probably knows what he does then
             * and the message is annoying when working with the split audio feature */
             if (!item->parentItem() || item->parentItem() == m_selectionGroup) {
                 emit displayMessage(i18n("Cannot add an audio effect to this clip"), ErrorMessage);
             }
             return;
         }
     } else if (effect.attribute(QStringLiteral("type")) == QLatin1String("video") || !effect.hasAttribute(QStringLiteral("type"))) {
         // Don't add video effect on audio clips
         if (item->clipState() == PlaylistState::AudioOnly || item->clipType() == Audio) {
             /* do not show error message when item is part of a group as the user probably knows what he does then
             * and the message is annoying when working with the split audio feature */
             if (!item->parentItem() || item->parentItem() == m_selectionGroup) {
                 emit displayMessage(i18n("Cannot add a video effect to this clip"), ErrorMessage);
             }
             return;
         }
     }
     if (effect.attribute(QStringLiteral("unique"), QStringLiteral("0")) != QLatin1String("0") && item->hasEffect(effect.attribute(QStringLiteral("tag")), effect.attribute(QStringLiteral("id"))) != -1) {
         emit displayMessage(i18n("Effect already present in clip"), ErrorMessage);
         return;
     }
     if (item->isItemLocked()) {
         return;
     }
 
     if (effect.attribute(QStringLiteral("id")) == QLatin1String("freeze") && m_cursorPos > item->startPos().frames(m_document->fps()) && m_cursorPos < item->endPos().frames(m_document->fps())) {
         item->initEffect(m_document->getProfileInfo(), effect, m_cursorPos - item->startPos().frames(m_document->fps()), offset);
     } else {
         item->initEffect(m_document->getProfileInfo(), effect, 0, offset);
     }
     new AddEffectCommand(this, item->track(), item->startPos(), effect, true, effectCommand);
 }
 
 void CustomTrackView::slotDeleteEffectGroup(ClipItem *clip, int track, const QDomDocument &doc, bool affectGroup)
 {
     QUndoCommand *delCommand = new QUndoCommand();
     QString effectName = doc.documentElement().attribute(QStringLiteral("name"));
     delCommand->setText(i18n("Delete %1", effectName));
     QDomNodeList effects = doc.elementsByTagName(QStringLiteral("effect"));
     for (int i = 0; i < effects.count(); ++i) {
         slotDeleteEffect(clip, track, effects.at(i).toElement(), affectGroup, delCommand);
     }
     m_commandStack->push(delCommand);
 }
 
 void CustomTrackView::slotDeleteEffect(ClipItem *clip, int track, const QDomElement &effect, bool affectGroup, QUndoCommand *parentCommand)
 {
     if (clip == nullptr) {
         // delete track effect
         AddEffectCommand *command = new AddEffectCommand(this, track, GenTime(-1), effect, false, parentCommand);
         if (parentCommand == nullptr) {
             m_commandStack->push(command);
         }
         return;
     }
     AddEffectCommand *command = nullptr;
     if (affectGroup && clip->parentItem() && clip->parentItem() == m_selectionGroup) {
         //clip is in a group, also remove the effect in other clips of the group
         QList<QGraphicsItem *> items = m_selectionGroup->childItems();
         QUndoCommand *delCommand = parentCommand == nullptr ? new QUndoCommand() : parentCommand;
         QString effectName;
         QDomElement namenode = effect.firstChildElement(QStringLiteral("name"));
         if (!namenode.isNull()) {
             effectName = i18n(namenode.text().toUtf8().data());
         } else {
             effectName = i18n("effect");
         }
         delCommand->setText(i18n("Delete %1", effectName));
 
         //expand groups
         for (int i = 0; i < items.count(); ++i) {
             if (items.at(i)->type() == GroupWidget) {
                 QList<QGraphicsItem *> subitems = items.at(i)->childItems();
                 for (int j = 0; j < subitems.count(); ++j) {
                     if (!items.contains(subitems.at(j))) {
                         items.append(subitems.at(j));
                     }
                 }
             }
         }
 
         for (int i = 0; i < items.count(); ++i) {
             if (items.at(i)->type() == AVWidget) {
                 ClipItem *item = static_cast <ClipItem *>(items.at(i));
                 int ix = item->hasEffect(effect.attribute(QStringLiteral("tag")), effect.attribute(QStringLiteral("id")));
                 if (ix != -1) {
                     QDomElement eff = item->effectAtIndex(ix);
                     new AddEffectCommand(this, item->track(), item->startPos(), eff, false, delCommand);
                 }
             }
         }
         if (parentCommand == nullptr) {
             if (delCommand->childCount() > 0) {
                 m_commandStack->push(delCommand);
             } else {
                 delete delCommand;
             }
         }
         return;
     } else {
         command = new AddEffectCommand(this, clip->track(), clip->startPos(), effect, false, parentCommand);
     }
     if (parentCommand == nullptr) {
         m_commandStack->push(command);
     }
 }
 
 void CustomTrackView::updateEffect(int track, GenTime pos, const QDomElement &insertedEffect, bool updateEffectStack, bool replaceEffect, bool refreshMonitor)
 {
     if (insertedEffect.isNull()) {
         //qCDebug(KDENLIVE_LOG)<<"// Trying to add null effect";
         emit displayMessage(i18n("Problem editing effect"), ErrorMessage);
         return;
     }
     int ix = insertedEffect.attribute(QStringLiteral("kdenlive_ix")).toInt();
     QDomElement effect = insertedEffect.cloneNode().toElement();
     //qCDebug(KDENLIVE_LOG) << "// update effect ix: " << effect.attribute("kdenlive_ix")<<", TAG: "<< insertedEffect.attribute("tag");
     if (pos < GenTime()) {
         // editing a track effect
         EffectsParameterList effectParams = EffectsController::getEffectArgs(m_document->getProfileInfo(), effect);
         // check if we are trying to reset a keyframe effect
         /*if (effectParams.hasParam("keyframes") && effectParams.paramValue("keyframes").isEmpty()) {
             clip->initEffect(m_document->getProfileInfo() , effect);
             effectParams = EffectsController::getEffectArgs(effect);
         }*/
         if (!m_timeline->track(track)->editTrackEffect(effectParams, replaceEffect)) {
             emit displayMessage(i18n("Problem editing effect"), ErrorMessage);
         }
         m_timeline->setTrackEffect(track, ix, effect);
         if (refreshMonitor && effect.attribute(QStringLiteral("type")) != QLatin1String("audio")) {
             monitorRefresh();
         }
         emit updateTrackEffectState(track);
         return;
 
     }
     ClipItem *clip = getClipItemAtStart(pos, track);
     if (clip) {
         // Special case: speed effect
         if (effect.attribute(QStringLiteral("id")) == QLatin1String("speed")) {
             if (effect.attribute(QStringLiteral("disable")) == QLatin1String("1")) {
                 doChangeClipSpeed(clip->info(), clip->speedIndependantInfo(), clip->clipState(), 1.0, 1, clip->getBinId());
             } else {
                 QLocale locale;
                 locale.setNumberOptions(QLocale::OmitGroupSeparator);
                 double speed = locale.toDouble(EffectsList::parameter(effect, QStringLiteral("speed"))) / 100.0;
                 int strobe = EffectsList::parameter(effect, QStringLiteral("strobe")).toInt();
                 if (strobe == 0) {
                     strobe = 1;
                 }
                 doChangeClipSpeed(clip->info(), clip->speedIndependantInfo(), clip->clipState(), speed, strobe, clip->getBinId());
             }
             clip->updateEffect(effect);
             if (updateEffectStack && clip->isSelected()) {
                 emit clipItemSelected(clip);
             }
             if (ix == clip->selectedEffectIndex()) {
                 // make sure to update display of clip keyframes
                 clip->setSelectedEffect(ix);
             }
             return;
         }
 
         EffectsParameterList effectParams = EffectsController::getEffectArgs(m_document->getProfileInfo(), effect);
 
         // check if we are trying to reset a keyframe effect
         if (effectParams.hasParam(QStringLiteral("keyframes")) && effectParams.paramValue(QStringLiteral("keyframes")).isEmpty()) {
             clip->initEffect(m_document->getProfileInfo(), effect);
             effectParams = EffectsController::getEffectArgs(m_document->getProfileInfo(), effect);
         }
 
         // Check if a fade effect was changed
         QString effectId = effect.attribute(QStringLiteral("id"));
         if (effectId == QLatin1String("fadein") || effectId == QLatin1String("fade_from_black") || effectId == QLatin1String("fadeout") || effectId == QLatin1String("fade_to_black")) {
             clip->setSelectedEffect(clip->selectedEffectIndex());
         }
 
         bool success = m_timeline->track(clip->track())->editEffect(clip->startPos().seconds(), effectParams, replaceEffect);
         if (success) {
             clip->updateEffect(effect);
             if (refreshMonitor && clip->hasVisibleVideo() && effect.attribute(QStringLiteral("type")) != QLatin1String("audio")) {
                 monitorRefresh(clip->info(), true);
             }
             if (updateEffectStack && clip->isSelected()) {
                 emit clipItemSelected(clip);
             }
             if (ix == clip->selectedEffectIndex()) {
                 // make sure to update display of clip keyframes
                 clip->setSelectedEffect(ix);
             }
         } else {
             emit displayMessage(i18n("Problem editing effect"), ErrorMessage);
         }
     } else {
         emit displayMessage(i18n("Cannot find clip to update effect"), ErrorMessage);
     }
 }
 
 void CustomTrackView::updateEffectState(int track, GenTime pos, const QList<int> &effectIndexes, bool disable, bool updateEffectStack)
 {
     if (pos < GenTime()) {
         // editing a track effect
         if (!m_timeline->track(track)->enableTrackEffects(effectIndexes, disable)) {
             emit displayMessage(i18n("Problem editing effect"), ErrorMessage);
             return;
         }
         if (m_timeline->enableTrackEffects(track, effectIndexes, disable)) {
             monitorRefresh();
         }
         emit updateTrackEffectState(track);
         emit showTrackEffects(track, m_timeline->getTrackInfo(track));
         return;
     }
     // editing a clip effect
     ClipItem *clip = getClipItemAtStart(pos, track);
     if (clip) {
         bool success = m_timeline->track(clip->track())->enableEffects(clip->startPos().seconds(), effectIndexes, disable);
         if (success) {
             if (clip->enableEffects(effectIndexes, disable) && clip->hasVisibleVideo()) {
                 monitorRefresh(clip->info(), true);
             }
             if (updateEffectStack && clip->isSelected()) {
                 emit clipItemSelected(clip);
             }
             if (effectIndexes.contains(clip->selectedEffectIndex())) {
                 // make sure to update display of clip keyframes
                 clip->setSelectedEffect(clip->selectedEffectIndex());
             }
         } else {
             emit displayMessage(i18n("Problem editing effect"), ErrorMessage);
         }
     } else {
         emit displayMessage(i18n("Cannot find clip to update effect"), ErrorMessage);
     }
 }
 
 void CustomTrackView::moveEffect(int track, const GenTime &pos, const QList<int> &oldPos, const QList<int> &newPos)
 {
     if (pos < GenTime()) {
         // Moving track effect
         int max = m_timeline->getTrackEffects(track).count();
         int new_position = newPos.at(0);
         if (new_position > max) {
             new_position = max;
         }
         int old_position = oldPos.at(0);
         for (int i = 0; i < newPos.count(); ++i) {
             QDomElement act = m_timeline->getTrackEffect(track, new_position);
             if (old_position > new_position) {
                 // Moving up, we need to adjust index
                 old_position = oldPos.at(i);
                 new_position = newPos.at(i);
             }
             QDomElement before = m_timeline->getTrackEffect(track, old_position);
             if (!act.isNull() && !before.isNull()) {
                 m_timeline->setTrackEffect(track, new_position, before);
                 m_timeline->track(track)->moveTrackEffect(old_position, new_position);
                 if (before.attribute(QStringLiteral("type")) != QLatin1String("audio")) {
                     monitorRefresh();
                     m_timeline->invalidateTrack(track);
                 }
             } else {
                 emit displayMessage(i18n("Cannot move effect"), ErrorMessage);
             }
         }
         emit showTrackEffects(track, m_timeline->getTrackInfo(track));
         return;
     }
     ClipItem *clip = getClipItemAtStart(pos, track);
     if (clip) {
         int new_position = newPos.at(0);
         if (new_position > clip->effectsCount()) {
             new_position = clip->effectsCount();
         }
         int old_position = oldPos.at(0);
         for (int i = 0; i < newPos.count(); ++i) {
             QDomElement act = clip->effectAtIndex(new_position);
             if (old_position > new_position) {
                 // Moving up, we need to adjust index
                 old_position = oldPos.at(i);
                 new_position = newPos.at(i);
             }
             QDomElement before = clip->effectAtIndex(old_position);
             if (act.isNull() || before.isNull()) {
                 emit displayMessage(i18n("Cannot move effect"), ErrorMessage);
                 return;
             }
             clip->moveEffect(before, new_position);
             if (clip->hasEffect(QStringLiteral("timewarp"), QStringLiteral("speed")) != -1) {
                 // special case, speed effect is not in MLT's filter list, so decrease indexes
                 old_position--;
                 new_position--;
             }
             // special case: speed effect, which is a pseudo-effect, not appearing in MLT's effects
             m_timeline->track(track)->moveEffect(pos.seconds(), old_position, new_position);
             if (clip->hasVisibleVideo() && before.attribute(QStringLiteral("type")) != QLatin1String("audio")) {
                 monitorRefresh(clip->info(), true);
             }
         }
         clip->setSelectedEffect(newPos.at(0));
         emit clipItemSelected(clip);
     } else {
         emit displayMessage(i18n("Cannot move effect"), ErrorMessage);
     }
 }
 
 void CustomTrackView::slotChangeEffectState(ClipItem *clip, int track, QList<int> effectIndexes, bool disable)
 {
     ChangeEffectStateCommand *command;
     if (clip == nullptr) {
         // editing track effect
         command = new ChangeEffectStateCommand(this, track, GenTime(-1), effectIndexes, disable, false, true);
     } else {
         // Check if we have a speed effect, disabling / enabling it needs a special procedure since it is a pseudoo effect
         QList<int> speedEffectIndexes;
         for (int i = 0; i < effectIndexes.count(); ++i) {
             QDomElement effect = clip->effectAtIndex(effectIndexes.at(i));
             if (effect.attribute(QStringLiteral("id")) == QLatin1String("speed")) {
                 // speed effect
                 speedEffectIndexes << effectIndexes.at(i);
                 QDomElement newEffect = effect.cloneNode().toElement();
                 newEffect.setAttribute(QStringLiteral("disable"), (int) disable);
                 EditEffectCommand *editcommand = new EditEffectCommand(this, clip->track(), clip->startPos(), effect, newEffect, effectIndexes.at(i), false, true, true);
                 m_commandStack->push(editcommand);
             }
         }
         for (int j = 0; j < speedEffectIndexes.count(); ++j) {
             effectIndexes.removeAll(speedEffectIndexes.at(j));
         }
         command = new ChangeEffectStateCommand(this, clip->track(), clip->startPos(), effectIndexes, disable, false, true);
     }
     m_commandStack->push(command);
 }
 
 void CustomTrackView::slotChangeEffectPosition(ClipItem *clip, int track, const QList<int> &currentPos, int newPos)
 {
     MoveEffectCommand *command;
     if (clip == nullptr) {
         // editing track effect
         command = new MoveEffectCommand(this, track, GenTime(-1), currentPos, newPos);
     } else {
         command = new MoveEffectCommand(this, clip->track(), clip->startPos(), currentPos, newPos);
     }
     m_commandStack->push(command);
 }
 
 void CustomTrackView::slotUpdateClipEffect(ClipItem *clip, int track, const QDomElement &oldeffect, const QDomElement &effect, int ix, bool refreshEffectStack)
 {
     EditEffectCommand *command;
     if (clip) {
         command = new EditEffectCommand(this, clip->track(), clip->startPos(), oldeffect.cloneNode().toElement(), effect.cloneNode().toElement(), ix, refreshEffectStack, true, true);
     } else {
         command = new EditEffectCommand(this, track, GenTime(-1), oldeffect.cloneNode().toElement(), effect.cloneNode().toElement(), ix, refreshEffectStack, true, true);
     }
     m_commandStack->push(command);
 }
 
 void CustomTrackView::slotUpdateClipRegion(ClipItem *clip, int ix, const QString &region)
 {
     QDomElement effect = clip->getEffectAtIndex(ix);
     QDomElement oldeffect = effect.cloneNode().toElement();
     effect.setAttribute(QStringLiteral("region"), region);
     EditEffectCommand *command = new EditEffectCommand(this, clip->track(), clip->startPos(), oldeffect, effect, ix, true, true, true);
     m_commandStack->push(command);
 }
 
 void CustomTrackView::cutClip(const ItemInfo &info, const GenTime &cutTime, bool cut, const EffectsList &oldStack, bool execute)
 {
     if (cut) {
         // cut clip
         ClipItem *item = getClipItemAtStart(info.startPos, info.track, info.endPos);
         bool selectDup = false;
         ItemInfo selectedInfo;
         if (m_dragItem && m_dragItem->type() == AVWidget) {
             selectedInfo = m_dragItem->info();
         }
         if (item == m_dragItem) {
             clearSelection();
             selectDup = true;
         }
         if (!item || !info.contains(cutTime)) {
             emit displayMessage(i18n("Cannot find clip to cut"), ErrorMessage);
             return;
         }
         if (execute) {
             if (!m_timeline->track(info.track)->cut(cutTime.seconds())) {
                 // Error cuting clip in playlist
                 qCDebug(KDENLIVE_LOG) << "/// ERROR CUTTING CLIP PLAYLIST!!";
                 return;
             }
         }
         if (!selectDup && info.track == selectedInfo.track && (selectedInfo.contains(info.startPos) || selectedInfo.contains(info.endPos))) {
             clearSelection();
         }
         delete item;
         m_timeline->reloadTrack(info, false);
 
         // remove unwanted effects
         // fade in from 2nd part of the clip
         item = getClipItemAtStart(info.startPos, info.track, cutTime);
         if (!item) {
             qCDebug(KDENLIVE_LOG) << "* * * CANNOT FIND CUT SRC CLIP AT: " << info.startPos.frames(25);
         }
         ClipItem *dup = getClipItemAtStart(cutTime, info.track, info.endPos);
         int ix = -1;
         if (!dup) {
             qCDebug(KDENLIVE_LOG) << "* * * CANNOT FIND CUT CLIP AT: " << cutTime.frames(25);
         } else {
             dup->binClip()->addRef();
             ix = dup->hasEffect(QString(), QStringLiteral("fadein"));
             if (ix != -1) {
                 QDomElement oldeffect = dup->effectAtIndex(ix);
                 dup->deleteEffect(oldeffect.attribute(QStringLiteral("kdenlive_ix")).toInt());
             }
             ix = dup->hasEffect(QString(), QStringLiteral("fade_from_black"));
             if (ix != -1) {
                 QDomElement oldeffect = dup->effectAtIndex(ix);
                 dup->deleteEffect(oldeffect.attribute(QStringLiteral("kdenlive_ix")).toInt());
             }
         }
         if (item) {
             // fade out from 1st part of the clip
             ix = item->hasEffect(QString(), QStringLiteral("fadeout"));
             if (ix != -1) {
                 QDomElement oldeffect = item->effectAtIndex(ix);
                 item->deleteEffect(oldeffect.attribute(QStringLiteral("kdenlive_ix")).toInt());
             }
             ix = item->hasEffect(QString(), QStringLiteral("fade_to_black"));
             if (ix != -1) {
                 QDomElement oldeffect = item->effectAtIndex(ix);
                 item->deleteEffect(oldeffect.attribute(QStringLiteral("kdenlive_ix")).toInt());
             }
 
             if (item->checkKeyFrames(m_document->width(), m_document->height(), (info.cropDuration + info.cropStart).frames(m_document->fps()))) {
                 slotRefreshEffects(item);
             }
         }
         if (dup) {
             if (dup->checkKeyFrames(m_document->width(), m_document->height(), (info.cropDuration + info.cropStart).frames(m_document->fps()), (cutTime - info.startPos).frames(m_document->fps()))) {
                 slotRefreshEffects(dup);
             }
             if (selectDup) {
                 dup->setSelected(true);
                 dup->setMainSelectedClip(true);
                 m_dragItem = dup;
                 emit clipItemSelected(dup);
             } else if (selectedInfo.isValid() && m_dragItem == nullptr) {
                 m_dragItem = getClipItemAtStart(selectedInfo.startPos, selectedInfo.track);
                 if (m_dragItem) {
                     m_dragItem->setSelected(true);
                     m_dragItem->setMainSelectedClip(true);
                     emit clipItemSelected(static_cast<ClipItem *>(m_dragItem));
                 }
             }
         }
         return;
     } else {
         // uncut clip
         ClipItem *item = getClipItemAtStart(info.startPos, info.track);
         ClipItem *dup = getClipItemAtStart(cutTime, info.track);
         bool selectDup = false;
         if (m_dragItem == item || m_dragItem == dup) {
             emit clipItemSelected(nullptr);
             selectDup = true;
         }
         if (!item || !dup || item == dup) {
             emit displayMessage(i18n("Cannot find clip to uncut"), ErrorMessage);
             return;
         }
         if (!m_timeline->track(info.track)->del(cutTime.seconds())) {
             emit displayMessage(i18n("Error removing clip at %1 on track %2", m_document->timecode().getTimecodeFromFrames(cutTime.frames(m_document->fps())), m_timeline->getTrackInfo(info.track).trackName), ErrorMessage);
             return;
         }
         dup->binClip()->removeRef();
         m_timeline->track(info.track)->resize(info.startPos.seconds(), (info.endPos - cutTime).seconds(), true);
         m_timeline->reloadTrack(info.track, info.startPos.frames(m_document->fps()), info.endPos.frames(m_document->fps()));
         item = getClipItemAtStart(info.startPos, info.track);
         // Restore original effects
         item->setEffectList(oldStack);
         if (selectDup) {
             item->setSelected(true);
             item->setMainSelectedClip(true);
             m_dragItem = item;
             emit clipItemSelected(item);
         }
     }
 }
 
 Transition *CustomTrackView::cutTransition(const ItemInfo &info, const GenTime &cutTime, bool cut, const QDomElement &oldStack, bool execute)
 {
     if (cut) {
         // cut clip
         Transition *item = getTransitionItemAtStart(info.startPos, info.track);
         if (!item || cutTime >= item->endPos() || cutTime <= item->startPos()) {
             emit displayMessage(i18n("Cannot find transition to cut"), ErrorMessage);
             if (item) {
                 qCDebug(KDENLIVE_LOG) << "/////////  ERROR CUTTING transition : (" << item->startPos().frames(25) << '-' << item->endPos().frames(25) << "), INFO: (" << info.startPos.frames(25) << '-' << info.endPos.frames(25) << ')' << ", CUT: " << cutTime.frames(25);
             } else {
                 qCDebug(KDENLIVE_LOG) << "/// ERROR NO transition at: " << info.startPos.frames(m_document->fps()) << ", track: " << info.track;
             }
             return nullptr;
         }
 
         bool success = true;
         if (execute) {
             success = m_timeline->transitionHandler->moveTransition(item->transitionTag(), info.track, info.track, item->transitionEndTrack(), info.startPos, info.endPos, info.startPos, cutTime);
             if (success) {
                 success = m_timeline->transitionHandler->addTransition(item->transitionTag(), item->transitionEndTrack(), info.track, cutTime, info.endPos, item->toXML());
             }
         }
         int cutPos = (int) cutTime.frames(m_document->fps());
         ItemInfo newPos;
         newPos.startPos = cutTime;
         newPos.endPos = info.endPos;
         newPos.cropStart = item->info().cropStart + (cutTime - info.startPos);
         newPos.track = info.track;
         newPos.cropDuration = newPos.endPos - newPos.startPos;
 
         bool snap = KdenliveSettings::snaptopoints();
         KdenliveSettings::setSnaptopoints(false);
         Transition *dup = item->clone(newPos);
         connect(dup, &AbstractClipItem::selectItem, this, &CustomTrackView::slotSelectItem);
         dup->setPos(newPos.startPos.frames(m_document->fps()), getPositionFromTrack(newPos.track) + 1 + dup->itemOffset());
 
         item->resizeEnd(cutPos);
         scene()->addItem(dup);
 
         if (item->checkKeyFrames(m_document->width(), m_document->height(), (info.cropDuration + info.cropStart).frames(m_document->fps()))) {
             m_timeline->transitionHandler->updateTransitionParams(item->transitionTag(), item->transitionEndTrack(), info.track, info.startPos, cutTime, item->toXML());
         }
         if (dup->checkKeyFrames(m_document->width(), m_document->height(), (info.cropDuration + info.cropStart).frames(m_document->fps()), (cutTime - item->startPos()).frames(m_document->fps()))) {
             m_timeline->transitionHandler->updateTransitionParams(item->transitionTag(), item->transitionEndTrack(), info.track, cutTime, info.endPos, dup->toXML());
         }
 
         KdenliveSettings::setSnaptopoints(snap);
         return dup;
     } else {
         // uncut transition
         Transition *item = getTransitionItemAtStart(info.startPos, info.track);
         Transition *dup = getTransitionItemAtStart(cutTime, info.track);
 
         if (!item || !dup || item == dup) {
             emit displayMessage(i18n("Cannot find transition to uncut"), ErrorMessage);
             return nullptr;
         }
 
         ItemInfo transitionInfo = dup->info();
         if (!m_timeline->transitionHandler->deleteTransition(dup->transitionTag(), dup->transitionEndTrack(), transitionInfo.track, cutTime, transitionInfo.endPos, dup->toXML(), false)) {
             emit displayMessage(i18n("Error removing transition at %1 on track %2", m_document->timecode().getTimecodeFromFrames(cutTime.frames(m_document->fps())), m_timeline->getTrackInfo(info.track).trackName), ErrorMessage);
             return nullptr;
         }
         bool snap = KdenliveSettings::snaptopoints();
         KdenliveSettings::setSnaptopoints(false);
 
         if (dup->isSelected() && dup == m_dragItem) {
             item->setSelected(true);
             item->setMainSelectedClip(true);
             m_dragItem = item;
             emit transitionItemSelected(item);
         }
         scene()->removeItem(dup);
         delete dup;
         dup = nullptr;
 
         ItemInfo clipinfo = item->info();
         bool success = m_timeline->transitionHandler->moveTransition(item->transitionTag(), clipinfo.track, clipinfo.track, item->transitionEndTrack(), clipinfo.startPos, clipinfo.endPos, clipinfo.startPos, transitionInfo.endPos);
 
         if (success) {
             item->resizeEnd((int) info.endPos.frames(m_document->fps()));
             item->setTransitionParameters(oldStack);
             m_timeline->transitionHandler->updateTransitionParams(item->transitionTag(), item->transitionEndTrack(), info.track, info.startPos, info.endPos, oldStack);
         } else {
             emit displayMessage(i18n("Error when resizing clip"), ErrorMessage);
         }
         KdenliveSettings::setSnaptopoints(snap);
         return item;
     }
 }
 
 void CustomTrackView::slotAddTransitionToSelectedClips(const QDomElement &transition, QList<QGraphicsItem *> itemList)
 {
     if (itemList.isEmpty()) {
         itemList = scene()->selectedItems();
     }
     if (itemList.count() == 1) {
         if (itemList.at(0)->type() == AVWidget) {
             ClipItem *item = static_cast<ClipItem *>(itemList.at(0));
             ItemInfo info;
             info.track = item->track();
             ClipItem *transitionClip = nullptr;
             const int transitiontrack = getPreviousVideoTrack(info.track);
             GenTime pos = GenTime((int)(mapToScene(m_menuPosition).x()), m_document->fps());
             if (pos < item->startPos() + item->cropDuration() / 2) {
                 // add transition to clip start
                 info.startPos = item->startPos();
                 if (transitiontrack != 0) {
                     transitionClip = getClipItemAtMiddlePoint(info.startPos.frames(m_document->fps()), transitiontrack);
                 }
                 if (transitionClip && transitionClip->endPos() < item->endPos()) {
                     info.endPos = transitionClip->endPos();
                 } else {
                     info.endPos = info.startPos + GenTime(m_document->getFramePos(KdenliveSettings::transition_duration()), m_document->fps());
                 }
                 // Check there is no other transition at that place
                 double startY = getPositionFromTrack(info.track) + 1 + m_tracksHeight / 2;
                 QRectF r(info.startPos.frames(m_document->fps()), startY, (info.endPos - info.startPos).frames(m_document->fps()), m_tracksHeight / 2);
                 QList<QGraphicsItem *> selection = m_scene->items(r);
                 bool transitionAccepted = true;
                 for (int i = 0; i < selection.count(); ++i) {
                     if (selection.at(i)->type() == TransitionWidget) {
                         Transition *tr = static_cast <Transition *>(selection.at(i));
                         if (tr->startPos() - info.startPos > GenTime(5, m_document->fps())) {
                             if (tr->startPos() < info.endPos) {
                                 info.endPos = tr->startPos();
                             }
                         } else {
                             transitionAccepted = false;
                         }
                     }
                 }
                 if (transitionAccepted) {
                     slotAddTransition(item, info, transitiontrack, transition);
                 } else {
                     emit displayMessage(i18n("Cannot add transition"), ErrorMessage);
                 }
 
             } else {
                 // add transition to clip  end
                 info.endPos = item->endPos();
                 if (transitiontrack != 0) {
                     transitionClip = getClipItemAtMiddlePoint(info.endPos.frames(m_document->fps()), transitiontrack);
                 }
                 if (transitionClip && transitionClip->startPos() > item->startPos()) {
                     info.startPos = transitionClip->startPos();
                 } else {
                     GenTime duration(m_document->getFramePos(KdenliveSettings::transition_duration()), m_document->fps());
                     if (info.endPos < duration) {
                         info.startPos = GenTime();
                     } else {
                         info.startPos = info.endPos - duration;
                     }
                 }
                 if (transition.attribute(QStringLiteral("tag")) == QLatin1String("luma")) {
                     EffectsList::setParameter(transition, QStringLiteral("reverse"), QStringLiteral("1"));
                 } else if (transition.attribute(QStringLiteral("id")) == QLatin1String("slide")) {
                     EffectsList::setParameter(transition, QStringLiteral("invert"), QStringLiteral("1"));
                 }
 
                 // Check there is no other transition at that place
                 double startY = getPositionFromTrack(info.track) + 1 + m_tracksHeight / 2;
                 QRectF r(info.startPos.frames(m_document->fps()), startY, (info.endPos - info.startPos).frames(m_document->fps()), m_tracksHeight / 2);
                 QList<QGraphicsItem *> selection = m_scene->items(r);
                 bool transitionAccepted = true;
                 for (int i = 0; i < selection.count(); ++i) {
                     if (selection.at(i)->type() == TransitionWidget) {
                         Transition *tr = static_cast <Transition *>(selection.at(i));
                         if (info.endPos - tr->endPos() > GenTime(5, m_document->fps())) {
                             if (tr->endPos() > info.startPos) {
                                 info.startPos = tr->endPos();
                             }
                         } else {
                             transitionAccepted = false;
                         }
                     }
                 }
                 if (transitionAccepted) {
                     slotAddTransition(item, info, transitiontrack, transition);
                 } else {
                     emit displayMessage(i18n("Cannot add transition"), ErrorMessage);
                 }
             }
         }
     } else for (int i = 0; i < itemList.count(); ++i) {
             if (itemList.at(i)->type() == AVWidget) {
                 ClipItem *item = static_cast<ClipItem *>(itemList.at(i));
                 ItemInfo info;
                 info.startPos = item->startPos();
                 info.endPos = info.startPos + GenTime(m_document->getFramePos(KdenliveSettings::transition_duration()), m_document->fps());
                 info.track = item->track();
 
                 // Check there is no other transition at that place
                 double startY = getPositionFromTrack(info.track) + 1 + m_tracksHeight / 2;
                 QRectF r(info.startPos.frames(m_document->fps()), startY, (info.endPos - info.startPos).frames(m_document->fps()), m_tracksHeight / 2);
                 QList<QGraphicsItem *> selection = m_scene->items(r);
                 bool transitionAccepted = true;
                 for (int j = 0; j < selection.count(); ++j) {
                     if (selection.at(j)->type() == TransitionWidget) {
                         Transition *tr = static_cast <Transition *>(selection.at(j));
                         if (tr->startPos() - info.startPos > GenTime(5, m_document->fps())) {
                             if (tr->startPos() < info.endPos) {
                                 info.endPos = tr->startPos();
                             }
                         } else {
                             transitionAccepted = false;
                         }
                     }
                 }
                 int transitiontrack = getPreviousVideoTrack(info.track);
                 if (transitionAccepted) {
                     slotAddTransition(item, info, transitiontrack, transition);
                 } else {
                     emit displayMessage(i18n("Cannot add transition"), ErrorMessage);
                 }
             }
         }
 }
 
 void CustomTrackView::slotAddTransition(ClipItem * /*clip*/, const ItemInfo &transitionInfo, int endTrack, const QDomElement &transition)
 {
     if (transitionInfo.startPos >= transitionInfo.endPos) {
         emit displayMessage(i18n("Invalid transition"), ErrorMessage);
         return;
     }
     AddTransitionCommand *command = new AddTransitionCommand(this, transitionInfo, endTrack, transition, false, true);
     m_commandStack->push(command);
 }
 
 void CustomTrackView::addTransition(const ItemInfo &transitionInfo, int endTrack, const QDomElement &params, bool refresh)
 {
     // If transition is to be created from paste, then use that automatic setting.
     // Otherwise, when no automatic setting is present, use the current configuration setting.
     bool autotrans = params.attribute(QStringLiteral("automatic"),
                                       KdenliveSettings::automatictransitions() ? QStringLiteral("1") : QStringLiteral("0"))
                      == QStringLiteral("1");
     Transition *tr = new Transition(transitionInfo, endTrack, m_document->fps(), params, autotrans);
     connect(tr, &AbstractClipItem::selectItem, this, &CustomTrackView::slotSelectItem);
     tr->setPos(transitionInfo.startPos.frames(m_document->fps()), getPositionFromTrack(transitionInfo.track) + tr->itemOffset() + 1);
     ////qCDebug(KDENLIVE_LOG) << "---- ADDING transition " << params.attribute("value");
     if (m_timeline->transitionHandler->addTransition(tr->transitionTag(), endTrack, transitionInfo.track, transitionInfo.startPos, transitionInfo.endPos, tr->toXML())) {
         scene()->addItem(tr);
         if (refresh) {
             monitorRefresh(transitionInfo, true);
         }
     } else {
         emit displayMessage(i18n("Cannot add transition"), ErrorMessage);
         delete tr;
     }
 }
 
 void CustomTrackView::deleteTransition(const ItemInfo &transitionInfo, int endTrack, const QDomElement &/*params*/, bool refresh)
 {
     Transition *item = getTransitionItemAt(transitionInfo.startPos, transitionInfo.track);
     if (!item) {
         //TODO: rename to "Select transition to delete
         emit displayMessage(i18n("Select clip to delete"), ErrorMessage);
         return;
     }
     m_timeline->transitionHandler->deleteTransition(item->transitionTag(), endTrack, transitionInfo.track, transitionInfo.startPos, transitionInfo.endPos, item->toXML(), refresh);
     if (m_dragItem == item) {
         m_dragItem->setMainSelectedClip(false);
         m_dragItem = nullptr;
     }
     if (refresh) {
         monitorRefresh(transitionInfo, true);
     }
     // animate item deletion
     item->closeAnimation();
     emit transitionItemSelected(nullptr);
 }
 
 void CustomTrackView::slotTransitionUpdated(Transition *tr, const QDomElement &old)
 {
     ////qCDebug(KDENLIVE_LOG) << "TRANS UPDATE, TRACKS: " << old.attribute("transition_btrack") << ", NEW: " << tr->toXML().attribute("transition_btrack");
     QDomElement xml = tr->toXML();
     if (old.isNull() || xml.isNull()) {
         emit displayMessage(i18n("Cannot update transition"), ErrorMessage);
         return;
     }
     EditTransitionCommand *command = new EditTransitionCommand(this, tr->track(), tr->startPos(), old, xml, false);
     updateTrackDuration(tr->track(), command);
     m_commandStack->push(command);
 }
 
 void CustomTrackView::updateTransition(int track, const GenTime &pos, const QDomElement &oldTransition, const QDomElement &transition, bool updateTransitionWidget)
 {
     Transition *item = getTransitionItemAt(pos, track);
     if (!item) {
         qCWarning(KDENLIVE_LOG) << "Unable to find transition at pos :" << pos.frames(m_document->fps()) << ", ON track: " << track;
         return;
     }
 
     bool force = false;
     if (oldTransition.attribute(QStringLiteral("transition_atrack")) != transition.attribute(QStringLiteral("transition_atrack")) || oldTransition.attribute(QStringLiteral("transition_btrack")) != transition.attribute(QStringLiteral("transition_btrack"))) {
         force = true;
     }
     m_timeline->transitionHandler->updateTransition(oldTransition.attribute(QStringLiteral("tag")), transition.attribute(QStringLiteral("tag")), transition.attribute(QStringLiteral("transition_btrack")).toInt(), transition.attribute(QStringLiteral("transition_atrack")).toInt(), item->startPos(), item->endPos(), transition, force);
     ////qCDebug(KDENLIVE_LOG) << "ORIGINAL TRACK: "<< oldTransition.attribute("transition_btrack") << ", NEW TRACK: "<<transition.attribute("transition_btrack");
     item->setTransitionParameters(transition);
     if (updateTransitionWidget && item->isSelected()) {
         ItemInfo info = item->info();
         QPoint p;
         ClipItem *transitionClip = getClipItemAtStart(info.startPos, info.track);
         if (transitionClip && transitionClip->binClip()) {
             int frameWidth = transitionClip->binClip()->getProducerIntProperty(QStringLiteral("meta.media.width"));
             int frameHeight = transitionClip->binClip()->getProducerIntProperty(QStringLiteral("meta.media.height"));
             double factor = transitionClip->binClip()->getProducerProperty(QStringLiteral("aspect_ratio")).toDouble();
             if (factor == 0) {
                 factor = 1.0;
             }
             p.setX((int)(frameWidth * factor + 0.5));
             p.setY(frameHeight);
         }
         emit transitionItemSelected(item, getPreviousVideoTrack(info.track), p, true);
     }
     monitorRefresh(item->info(), true);
 }
 
 void CustomTrackView::dragMoveEvent(QDragMoveEvent *event)
 {
     if (m_clipDrag) {
         const QPointF pos = mapToScene(event->pos());
         if (m_selectionGroup) {
             m_selectionGroup->setPos(pos);
             emit mousePosition((int)(m_selectionGroup->scenePos().x() + 0.5));
             event->acceptProposedAction();
         } else if (m_dragItem) {
             m_dragItem->setPos(pos);
             emit mousePosition((int)(m_dragItem->scenePos().x() + 0.5));
             event->acceptProposedAction();
         } else {
             // Drag enter was not possible, try again at mouse position
             insertDropClips(event->mimeData(), event->pos());
             event->accept();
         }
     } else {
         QGraphicsView::dragMoveEvent(event);
     }
 }
 
 void CustomTrackView::dragLeaveEvent(QDragLeaveEvent *event)
 {
     if ((m_selectionGroup || m_dragItem) && m_clipDrag) {
         QList<QGraphicsItem *> items;
         QMutexLocker lock(&m_selectionMutex);
         if (m_selectionGroup) {
             items = m_selectionGroup->childItems();
         } else if (m_dragItem) {
             m_dragItem->setMainSelectedClip(false);
             items.append(m_dragItem);
         }
         qDeleteAll(items);
         if (m_selectionGroup) {
             scene()->destroyItemGroup(m_selectionGroup);
         }
         m_selectionGroup = nullptr;
         m_dragItem = nullptr;
         event->accept();
     } else {
         QGraphicsView::dragLeaveEvent(event);
     }
 }
 
 void CustomTrackView::enterEvent(QEvent *event)
 {
     m_currentToolManager->enterEvent(0, m_tracksHeight * m_scene->scale().y());
     QGraphicsView::enterEvent(event);
 }
 
 void CustomTrackView::leaveEvent(QEvent *event)
 {
     removeTipAnimation();
     m_currentToolManager->leaveEvent();
     QGraphicsView::leaveEvent(event);
 }
 
 void CustomTrackView::dropEvent(QDropEvent *event)
 {
     GenTime startPos;
     GenTime duration;
     if ((m_selectionGroup || m_dragItem) && m_clipDrag) {
         QList<QGraphicsItem *> items;
         if (m_selectionGroup) {
             items = m_selectionGroup->childItems();
             startPos = GenTime((int) m_selectionGroup->scenePos().x(), m_document->fps());
             duration = m_selectionGroup->duration();
         } else if (m_dragItem) {
             m_dragItem->setMainSelectedClip(false);
             startPos = m_dragItem->startPos();
             duration = m_dragItem->cropDuration();
             items.append(m_dragItem);
         }
         resetSelectionGroup();
         m_dragItem = nullptr;
         m_scene->clearSelection();
         QUndoCommand *addCommand = new QUndoCommand();
         addCommand->setText(i18n("Add timeline clip"));
         QList<ClipItem *> brokenClips;
 
         // Add refresh command for undo
         RefreshMonitorCommand *firstRefresh = new RefreshMonitorCommand(this, ItemInfo(), false, true, addCommand);
         for (int i = 0; i < items.count(); ++i) {
             m_scene->removeItem(items.at(i));
         }
         QList<ItemInfo> range;
         if (m_scene->editMode() == TimelineMode::InsertEdit) {
             cutTimeline(startPos.frames(m_document->fps()), QList<ItemInfo>(), QList<ItemInfo>(), addCommand);
             ItemInfo info;
             info.startPos = startPos;
             info.cropDuration = duration;
             new AddSpaceCommand(this, info, QList<ItemInfo>(), true, addCommand);
         } else if (m_scene->editMode() == TimelineMode::OverwriteEdit) {
             // Should we really overwrite all unlocked tracks ? If not we need to calculate the track for audio split first
             extractZone(QPoint(startPos.frames(m_document->fps()), (startPos + duration).frames(m_document->fps())), false, QList<ItemInfo>(), addCommand);
             /*for (int i = 0; i < items.count(); ++i) {
                 if (items.at(i)->type() != AVWidget)
                     continue;
                 ItemInfo info = items.at(i)->info();
                 extractZone(QPoint(info.startPos.frames(m_document->fps()), (info.startPos+info.cropDuration).frames(m_document->fps())), false, QList<ItemInfo>(), addCommand, info.track);
             }*/
         }
         ItemInfo info;
         for (int i = 0; i < items.count(); ++i) {
             if (items.at(i)->type() != AVWidget) {
                 continue;
             }
             ClipItem *item = static_cast <ClipItem *>(items.at(i));
             ClipType cType = item->clipType();
             if (items.count() == 1) {
                 updateClipTypeActions(item);
             } else {
                 updateClipTypeActions(nullptr);
             }
             info = item->info();
             QString clipBinId = item->getBinId();
             PlaylistState::ClipState pState = item->clipState();
             if (item->hasVisibleVideo()) {
                 range << info;
             }
             if (KdenliveSettings::splitaudio()) {
                 if (m_timeline->getTrackInfo(info.track).type == AudioTrack) {
                     if (cType != Audio) {
                         pState = PlaylistState::AudioOnly;
                     }
                 } else if (item->isSplittable()) {
                     pState = PlaylistState::VideoOnly;
                 }
             }
             new AddTimelineClipCommand(this, clipBinId, info, item->effectList(), pState, true, false, false, addCommand);
             // Automatic audio split
             if (KdenliveSettings::splitaudio() && item->isSplittable() && pState != PlaylistState::AudioOnly) {
                 splitAudio(false, info, m_timeline->audioTarget, addCommand);
             } else {
                 updateTrackDuration(info.track, addCommand);
             }
 
             // Disabled since we now have working track compositing
             /*if (item->binClip()->isTransparent() && getTransitionItemAtStart(info.startPos, info.track) == nullptr) {
                 // add transparency transition if space is available
                 if (canBePastedTo(info, TransitionWidget)) {
                     QDomElement trans = MainWindow::transitions.getEffectByTag(QStringLiteral("affine"), QString()).cloneNode().toElement();
                     new AddTransitionCommand(this, info, getPreviousVideoTrack(info.track), trans, false, true, addCommand);
                 }
             }*/
         }
         qDeleteAll(items);
         // Add refresh command for redo
         firstRefresh->updateRange(range);
         new RefreshMonitorCommand(this, range, true, false, addCommand);
         if (addCommand->childCount() > 0) {
             m_commandStack->push(addCommand);
         } else {
             delete addCommand;
         }
         /*
         m_pasteEffectsAction->setEnabled(m_copiedItems.count() == 1);*/
         event->setDropAction(Qt::MoveAction);
         event->accept();
         ClipItem *clp = getClipItemAtStart(info.startPos, info.track);
         if (clp) {
             slotSelectItem(clp);
         }
 
         /// \todo enable when really working
         //        alignAudio();
 
     } else {
         QGraphicsView::dropEvent(event);
     }
     setFocus();
 }
 
 void CustomTrackView::cutTimeline(int cutPos, const QList<ItemInfo> &excludedClips, const QList<ItemInfo> &excludedTransitions, QUndoCommand *masterCommand, int track)
 {
     QRectF rect;
     if (track == -1) {
         // Cut all tracks
         rect = QRectF(cutPos, 0, 1, m_timeline->visibleTracksCount() * m_tracksHeight);
     } else {
         // Cut only selected track
         rect = QRectF(cutPos, getPositionFromTrack(track) + m_tracksHeight / 2, 1, 2);
     }
     QList<QGraphicsItem *> selection = m_scene->items(rect);
     // We are going to move clips that are after zone, so break locked groups first.
     QList<ItemInfo> clipsToCut;
     QList<ItemInfo> transitionsToCut;
     for (int i = 0; i < selection.count(); ++i) {
         AbstractClipItem *item = static_cast<AbstractClipItem *>(selection.at(i));
         if (!item || !item->isEnabled() || !item->parentItem()) {
             continue;
         }
         ItemInfo moveInfo = item->info();
         // Skip locked tracks
         if (m_timeline->getTrackInfo(moveInfo.track).isLocked) {
             continue;
         }
         if (item->type() == AVWidget) {
             if (excludedClips.contains(moveInfo)) {
                 continue;
             }
             clipsToCut.append(moveInfo);
         } else if (item->type() == TransitionWidget) {
             if (excludedTransitions.contains(moveInfo)) {
                 continue;
             }
             transitionsToCut.append(moveInfo);
         }
     }
     if (!clipsToCut.isEmpty() || !transitionsToCut.isEmpty()) {
         breakLockedGroups(clipsToCut, transitionsToCut, masterCommand);
     }
     // Razor
     GenTime cutPosition = GenTime(cutPos, m_document->fps());
     for (int i = 0; i < selection.count(); ++i) {
         if (!selection.at(i)->isEnabled()) {
             continue;
         }
         if (selection.at(i)->type() == AVWidget) {
             ClipItem *clip = static_cast<ClipItem *>(selection.at(i));
             // Skip locked tracks
             if (m_timeline->getTrackInfo(clip->track()).isLocked) {
                 continue;
             }
             ItemInfo info = clip->info();
             if (excludedClips.contains(info) || cutPosition == info.startPos) {
                 continue;
             }
             new RazorClipCommand(this, info, clip->effectList(), cutPosition, true, masterCommand);
         } else if (selection.at(i)->type() == TransitionWidget) {
             Transition *trans = static_cast<Transition *>(selection.at(i));
             // Skip locked tracks
             if (m_timeline->getTrackInfo(trans->track()).isLocked) {
                 continue;
             }
             ItemInfo info = trans->info();
             if (excludedTransitions.contains(info) || cutPosition == info.startPos) {
                 continue;
             }
             new RazorTransitionCommand(this, info, trans->toXML(), cutPosition, true, masterCommand);
         }
     }
 }
 
 void CustomTrackView::extractZone(QPoint z, bool closeGap, const QList<ItemInfo> &excludedClips, QUndoCommand *masterCommand, int track)
 {
     // remove track zone and close gap
     if (closeGap && m_timeline->getTrackInfo(m_selectedTrack).isLocked) {
         // Cannot perform an Extract operation on a locked track
         emit displayMessage(i18n("Cannot perform operation on a locked track"), ErrorMessage);
         return;
     }
     if (z.isNull()) {
         z = m_document->zone();
         z.setY(z.y() + 1);
     }
     QRectF rect;
     if (track == -1) {
         // All tracks
         rect = QRectF(z.x(), 0, z.y() - z.x() - 1, m_timeline->visibleTracksCount() * m_tracksHeight);
     } else {
         // one track only
         rect = QRectF(z.x(), getPositionFromTrack(track) + m_tracksHeight / 2, z.y() - z.x() - 1, 2);
     }
     QList<QGraphicsItem *> selection = m_scene->items(rect);
     QList<QGraphicsItem *> gapSelection;
     if (selection.isEmpty()) {
         return;
     }
     GenTime inPoint(z.x(), m_document->fps());
     GenTime outPoint(z.y(), m_document->fps());
     bool hasMasterCommand = masterCommand != nullptr;
     if (!hasMasterCommand) {
         masterCommand = new QUndoCommand();
         masterCommand->setText(i18n("Remove Zone"));
     }
 
     if (closeGap) {
         // We are going to move clips that are after zone, so break locked groups first.
         QRectF gapRect = QRectF(z.x(), 0, sceneRect().width() - z.x(), m_timeline->visibleTracksCount() * m_tracksHeight);
         gapSelection = m_scene->items(gapRect);
         QList<ItemInfo> clipsToMove;
         QList<ItemInfo> transitionsToMove;
         for (int i = 0; i < gapSelection.count(); ++i) {
             if (!gapSelection.at(i)->isEnabled()) {
                 continue;
             }
             if (gapSelection.at(i)->type() == AVWidget) {
                 ClipItem *clip = static_cast<ClipItem *>(gapSelection.at(i));
                 // Skip locked tracks
                 if (m_timeline->getTrackInfo(clip->track()).isLocked) {
                     continue;
                 }
                 ItemInfo moveInfo = clip->info();
                 if (clip->type() == AVWidget) {
                     clipsToMove.append(moveInfo);
                 } else if (clip->type() == TransitionWidget) {
                     transitionsToMove.append(moveInfo);
                 }
             }
         }
         if (!clipsToMove.isEmpty() || !transitionsToMove.isEmpty()) {
             breakLockedGroups(clipsToMove, transitionsToMove, masterCommand);
         }
     }
     QList<ItemInfo> range;
     RefreshMonitorCommand *firstRefresh = new RefreshMonitorCommand(this, ItemInfo(), false, true, masterCommand);
     for (int i = 0; i < selection.count(); ++i) {
         if (!selection.at(i)->isEnabled()) {
             continue;
         }
         if (selection.at(i)->type() == AVWidget) {
             ClipItem *clip = static_cast<ClipItem *>(selection.at(i));
             // Skip locked tracks
             if (m_timeline->getTrackInfo(clip->track()).isLocked) {
                 continue;
             }
             ItemInfo baseInfo = clip->info();
             if (excludedClips.contains(baseInfo)) {
                 continue;
             }
             bool refresh = clip->hasVisibleVideo();
             if (clip->startPos() < inPoint) {
                 ItemInfo info = baseInfo;
                 info.startPos = inPoint;
                 info.cropDuration = info.endPos - info.startPos;
                 if (clip->endPos() > outPoint) {
                     new RazorClipCommand(this, baseInfo, clip->effectList(), outPoint, true, masterCommand);
                     info.cropDuration = outPoint - inPoint;
                     info.endPos = outPoint;
                     baseInfo.endPos = outPoint;
                     baseInfo.cropDuration = outPoint - baseInfo.startPos;
                 }
                 new RazorClipCommand(this, baseInfo, clip->effectList(), inPoint, true, masterCommand);
                 if (refresh) {
                     range << info;
                 }
                 new AddTimelineClipCommand(this, clip->getBinId(), info, clip->effectList(), clip->clipState(), true, true, false, masterCommand);
             } else if (clip->endPos() > outPoint) {
                 new RazorClipCommand(this, baseInfo, clip->effectList(), outPoint, true, masterCommand);
                 ItemInfo newInfo = baseInfo;
                 newInfo.endPos = outPoint;
                 newInfo.cropDuration = newInfo.endPos - newInfo.startPos;
                 if (refresh) {
                     range << newInfo;
                 }
                 new AddTimelineClipCommand(this, clip->getBinId(), newInfo, clip->effectList(), clip->clipState(), true, true, false, masterCommand);
             } else {
                 // Clip is entirely inside zone, delete it
                 if (refresh) {
                     range << baseInfo;
                 }
                 new AddTimelineClipCommand(this, clip->getBinId(), baseInfo, clip->effectList(), clip->clipState(), true, true, false, masterCommand);
             }
         } else if (selection.at(i)->type() == TransitionWidget) {
             Transition *trans = static_cast<Transition *>(selection.at(i));
             // Skip locked tracks
             if (m_timeline->getTrackInfo(trans->track()).isLocked) {
                 continue;
             }
             ItemInfo baseInfo = trans->info();
             if (excludedClips.contains(baseInfo)) {
                 continue;
             }
             QDomElement xml = trans->toXML();
             if (trans->startPos() < inPoint) {
                 ItemInfo info = baseInfo;
                 ItemInfo newInfo = baseInfo;
                 info.startPos = inPoint;
                 info.cropDuration = info.endPos - info.startPos;
                 if (trans->endPos() > outPoint) {
                     // Transition starts before and ends after zone, proceed cuts
                     new RazorTransitionCommand(this, baseInfo, xml, outPoint, true, masterCommand);
                     info.cropDuration = outPoint - inPoint;
                     info.endPos = outPoint;
                     newInfo.endPos = outPoint;
                     newInfo.cropDuration = outPoint - newInfo.startPos;
                 }
                 new RazorTransitionCommand(this, newInfo, xml, inPoint, true, masterCommand);
                 new AddTransitionCommand(this, info, trans->transitionEndTrack(), xml, true, true, masterCommand);
             } else if (trans->endPos() > outPoint) {
                 // Cut and remove first part
                 new RazorTransitionCommand(this, baseInfo, xml, outPoint, true, masterCommand);
                 ItemInfo info = baseInfo;
                 info.endPos = outPoint;
                 info.cropDuration = info.endPos - info.startPos;
                 new AddTransitionCommand(this, info, trans->transitionEndTrack(), xml, true, true, masterCommand);
             } else {
                 // Transition is entirely inside zone, delete it
                 new AddTransitionCommand(this, baseInfo, trans->transitionEndTrack(), xml, true, true, masterCommand);
             }
         }
     }
     if (closeGap) {
         // Remove empty zone
         QList<ItemInfo> clipsToMove;
         QList<ItemInfo> transitionsToMove;
         for (int i = 0; i < gapSelection.count(); ++i) {
             if (gapSelection.at(i)->type() == AVWidget || gapSelection.at(i)->type() == TransitionWidget) {
                 AbstractClipItem *item = static_cast <AbstractClipItem *>(gapSelection.at(i));
                 if (m_timeline->getTrackInfo(item->track()).isLocked) {
                     continue;
                 }
                 ItemInfo moveInfo = item->info();
                 if (item->type() == AVWidget) {
                     if (moveInfo.startPos < outPoint) {
                         if (moveInfo.endPos <= outPoint) {
                             continue;
                         }
                         moveInfo.startPos = outPoint;
                         moveInfo.cropDuration = moveInfo.endPos - moveInfo.startPos;
                     }
                     clipsToMove.append(moveInfo);
                 } else if (item->type() == TransitionWidget) {
                     if (moveInfo.startPos < outPoint) {
                         if (moveInfo.endPos <= outPoint) {
                             continue;
                         }
                         moveInfo.startPos = outPoint;
                         moveInfo.cropDuration = moveInfo.endPos - moveInfo.startPos;
                     }
                     transitionsToMove.append(moveInfo);
                 }
             }
         }
         if (!clipsToMove.isEmpty() || !transitionsToMove.isEmpty()) {
             new InsertSpaceCommand(this, clipsToMove, transitionsToMove, -1, -(outPoint - inPoint), true, masterCommand);
             updateTrackDuration(-1, masterCommand);
         }
     }
     // Add refresh command for redo
     firstRefresh->updateRange(range);
     new RefreshMonitorCommand(this, range, true, false, masterCommand);
     if (!hasMasterCommand) {
         m_commandStack->push(masterCommand);
     }
     return;
 }
 
 void CustomTrackView::adjustTimelineTransitions(TimelineMode::EditMode mode, Transition *item, QUndoCommand *command)
 {
     if (mode == TimelineMode::OverwriteEdit) {
         // if we are in overwrite or push mode, move clips accordingly
         bool snap = KdenliveSettings::snaptopoints();
         KdenliveSettings::setSnaptopoints(false);
         ItemInfo info = item->info();
         QRectF rect(info.startPos.frames(m_document->fps()), getPositionFromTrack(info.track) + m_tracksHeight, (info.endPos - info.startPos).frames(m_document->fps()) - 1, 5);
         QList<QGraphicsItem *> selection = m_scene->items(rect);
         selection.removeAll(item);
         for (int i = 0; i < selection.count(); ++i) {
             if (!selection.at(i)->isEnabled()) {
                 continue;
             }
             if (selection.at(i)->type() == TransitionWidget) {
                 Transition *tr = static_cast<Transition *>(selection.at(i));
                 if (tr->startPos() < info.startPos) {
                     ItemInfo firstPos = tr->info();
                     ItemInfo newPos = firstPos;
                     firstPos.endPos = item->startPos();
                     newPos.startPos = item->endPos();
                     new MoveTransitionCommand(this, tr->info(), firstPos, true, false, command);
                     if (tr->endPos() > info.endPos) {
                         // clone transition
                         new AddTransitionCommand(this, newPos, tr->transitionEndTrack(), tr->toXML(), false, true, command);
                     }
                 } else if (tr->endPos() > info.endPos) {
                     // just resize
                     ItemInfo firstPos = tr->info();
                     firstPos.startPos = item->endPos();
                     new MoveTransitionCommand(this, tr->info(), firstPos, true, false, command);
                 } else {
                     // remove transition
                     new AddTransitionCommand(this, tr->info(), tr->transitionEndTrack(), tr->toXML(), true, true, command);
                 }
             }
         }
         KdenliveSettings::setSnaptopoints(snap);
     }
 }
 
 QStringList CustomTrackView::mimeTypes() const
 {
     QStringList qstrList;
     // list of accepted mime types for drop
     qstrList.append(QStringLiteral("text/plain"));
     qstrList.append(QStringLiteral("kdenlive/producerslist"));
     qstrList.append(QStringLiteral("kdenlive/clip"));
     return qstrList;
 }
 
 Qt::DropActions CustomTrackView::supportedDropActions() const
 {
     // returns what actions are supported when dropping
     return Qt::MoveAction;
 }
 
 void CustomTrackView::setDuration(int duration)
 {
     if (m_projectDuration == duration) {
         return;
     }
     int diff = qAbs(duration - sceneRect().width());
     if (diff * matrix().m11() > -50) {
         if (matrix().m11() < 0.4) {
             setSceneRect(0, 0, (duration + 100 / matrix().m11()), sceneRect().height());
         } else {
             setSceneRect(0, 0, (duration + 300), sceneRect().height());
         }
     }
     m_projectDuration = duration;
 }
 
 int CustomTrackView::duration() const
 {
     return m_projectDuration;
 }
 
 void CustomTrackView::addTrack(const TrackInfo &type, int ix)
 {
     clearSelection();
     emit transitionItemSelected(nullptr);
     QList<TransitionInfo> transitionInfos;
     if (ix == -1 || ix > m_timeline->tracksCount()) {
         ix = m_timeline->tracksCount() + 1;
     }
     if (ix <= m_timeline->videoTarget) {
         m_timeline->videoTarget++;
     }
     if (ix <= m_timeline->audioTarget) {
         m_timeline->audioTarget++;
     }
     // Prepare groups for reload
     QDomDocument doc;
     doc.setContent(m_document->groupsXml());
     QDomNodeList groups;
     if (!doc.isNull()) {
         groups = doc.documentElement().elementsByTagName(QStringLiteral("group"));
         for (int nodeindex = 0; nodeindex < groups.count(); ++nodeindex) {
             QDomNode grp = groups.item(nodeindex);
             QDomNodeList nodes = grp.childNodes();
             for (int itemindex = 0; itemindex < nodes.count(); ++itemindex) {
                 QDomElement elem = nodes.item(itemindex).toElement();
                 if (!elem.hasAttribute(QStringLiteral("track"))) {
                     continue;
                 }
                 int track = elem.attribute(QStringLiteral("track")).toInt();
                 if (track < ix) {
                     // No change
                     continue;
                 } else {
                     elem.setAttribute(QStringLiteral("track"), track + 1);
                 }
             }
         }
     }
     // insert track in MLT's playlist
     transitionInfos = m_document->renderer()->mltInsertTrack(ix,  type.trackName, type.type == VideoTrack);
     Mlt::Tractor *tractor = m_document->renderer()->lockService();
     m_document->renderer()->unlockService(tractor);
     // Reload timeline and m_tracks structure from MLT's playlist
     reloadTimeline();
     // Refresh track compositing and audio mix
     m_timeline->refreshTransitions();
     loadGroups(groups);
 }
 
 void CustomTrackView::reloadTimeline()
 {
     removeTipAnimation();
     m_document->clipManager()->resetGroups();
     emit clipItemSelected(nullptr);
     emit transitionItemSelected(nullptr);
     QList<QGraphicsItem *> selection = m_scene->items();
     selection.removeAll(m_cursorLine);
     for (int i = 0; i < m_guides.count(); ++i) {
         selection.removeAll(m_guides.at(i));
     }
     qDeleteAll<>(selection);
     m_timeline->getTracks();
     m_timeline->getTransitions();
     int maxHeight = m_tracksHeight * m_timeline->visibleTracksCount() * matrix().m22();
     for (int i = 0; i < m_guides.count(); ++i) {
         m_guides.at(i)->setLine(0, 0, 0, maxHeight - 1);
     }
     if (m_cursorLine->flags() & QGraphicsItem::ItemIgnoresTransformations) {
         m_cursorLine->setLine(0, 0, 0, maxHeight - 1);
     } else {
         m_cursorLine->setLine(0, 0, 0, m_tracksHeight * m_timeline->visibleTracksCount() - 1);
     }
     viewport()->update();
 }
 
 void CustomTrackView::removeTrack(int ix)
 {
     // Clear effect stack
     clearSelection();
     emit transitionItemSelected(nullptr);
     // Make sure the selected track index is not outside range
     m_selectedTrack = qBound(1, m_selectedTrack, m_timeline->tracksCount() - 2);
     if (ix == m_timeline->audioTarget) {
         m_timeline->audioTarget = -1;
     } else if (m_timeline->audioTarget > ix) {
         m_timeline->audioTarget--;
     }
     if (ix == m_timeline->videoTarget) {
         m_timeline->videoTarget = -1;
     } else if (m_timeline->videoTarget > ix) {
         m_timeline->videoTarget--;
     }
 
     //Delete composite transition
     Mlt::Tractor *tractor = m_document->renderer()->lockService();
     QScopedPointer<Mlt::Field> field(tractor->field());
     if (m_timeline->getTrackInfo(ix).type == VideoTrack) {
         QScopedPointer<Mlt::Transition> tr(m_timeline->transitionHandler->getTrackTransition(QStringList() << QStringLiteral("qtblend") << QStringLiteral("frei0r.cairoblend") << QStringLiteral("movit.overlay"), ix, -1));
         if (tr) {
             field->disconnect_service(*tr.data());
         }
         QScopedPointer<Mlt::Transition> mixTr(m_timeline->transitionHandler->getTrackTransition(QStringList() << QStringLiteral("mix"), ix, -1));
         if (mixTr) {
             field->disconnect_service(*mixTr.data());
         }
     }
     // Prepare groups for reload
     QDomDocument doc;
     doc.setContent(m_document->groupsXml());
     QDomNodeList groups;
     if (!doc.isNull()) {
         groups = doc.documentElement().elementsByTagName(QStringLiteral("group"));
         for (int nodeindex = 0; nodeindex < groups.count(); ++nodeindex) {
             QDomNode grp = groups.item(nodeindex);
             QDomNodeList nodes = grp.childNodes();
             for (int itemindex = 0; itemindex < nodes.count(); ++itemindex) {
                 QDomElement elem = nodes.item(itemindex).toElement();
                 if (!elem.hasAttribute(QStringLiteral("track"))) {
                     continue;
                 }
                 int track = elem.attribute(QStringLiteral("track")).toInt();
                 if (track < ix) {
                     // No change
                     continue;
                 } else if (track > ix) {
                     elem.setAttribute(QStringLiteral("track"), track - 1);
                 } else {
                     // track == ix
                     // A grouped item was on deleted track, remove it from group
                     elem.setAttribute(QStringLiteral("track"), -1);
                 }
             }
         }
     }
 
     //Manually remove all transitions issued from track ix, otherwise  MLT will relocate it to another track
     m_timeline->transitionHandler->deleteTrackTransitions(ix);
 
     // Delete track in MLT playlist
     tractor->remove_track(ix);
     m_document->renderer()->unlockService(tractor);
     reloadTimeline();
     // Refresh track compositing and audio mix
     m_timeline->refreshTransitions();
     loadGroups(groups);
 }
 
 void CustomTrackView::configTracks(const QList< TrackInfo > &trackInfos)
 {
     //TODO: fix me, use UNDO/REDO
     for (int i = 0; i < trackInfos.count(); ++i) {
         m_timeline->setTrackInfo(m_timeline->visibleTracksCount() - i, trackInfos.at(i));
     }
     viewport()->update();
 }
 
 void CustomTrackView::slotSwitchTrackLock(int ix, bool enable, bool applyToAll)
 {
     QUndoCommand *command = nullptr;
     if (!applyToAll) {
         command = new LockTrackCommand(this, ix, enable);
     } else {
         command = new QUndoCommand;
         command->setText(i18n("Switch All Track Lock"));
         for (int i = 1; i <= m_timeline->visibleTracksCount(); ++i) {
             if (i == ix) {
                 continue;
             }
             new LockTrackCommand(this, i, enable, command);
         }
     }
     m_commandStack->push(command);
 }
 
 void CustomTrackView::lockTrack(int ix, bool lock, bool requestUpdate)
 {
     m_timeline->lockTrack(ix, lock);
     if (requestUpdate) {
         emit doTrackLock(ix, lock);
     }
     AbstractClipItem *clip = nullptr;
     QList<QGraphicsItem *> selection = m_scene->items(QRectF(0, getPositionFromTrack(ix) + m_tracksHeight / 2, sceneRect().width(), m_tracksHeight / 2 - 2));
     for (int i = 0; i < selection.count(); ++i) {
         if (selection.at(i)->type() == GroupWidget && static_cast<AbstractGroupItem *>(selection.at(i)) != m_selectionGroup) {
             if (selection.at(i)->parentItem() && m_selectionGroup) {
                 selection.removeAll(static_cast<QGraphicsItem *>(m_selectionGroup));
                 resetSelectionGroup();
             }
 
             bool changeGroupLock = true;
             bool hasClipOnTrack = false;
             QList<QGraphicsItem *> children =  selection.at(i)->childItems();
             for (int j = 0; j < children.count(); ++j) {
                 if (children.at(j)->isSelected()) {
                     if (children.at(j)->type() == AVWidget) {
                         emit clipItemSelected(nullptr);
                     } else if (children.at(j)->type() == TransitionWidget) {
                         emit transitionItemSelected(nullptr);
                     } else {
                         continue;
                     }
                 }
 
                 AbstractClipItem *child = static_cast <AbstractClipItem *>(children.at(j));
                 if (child) {
                     if (child == m_dragItem) {
                         m_dragItem->setMainSelectedClip(false);
                         m_dragItem = nullptr;
                     }
 
                     // only unlock group, if it is not locked by another track too
                     if (!lock && child->track() != ix && m_timeline->getTrackInfo(child->track()).isLocked) {
                         changeGroupLock = false;
                     }
 
                     // only (un-)lock if at least one clip is on the track
                     if (child->track() == ix) {
                         hasClipOnTrack = true;
                     }
                 }
             }
             if (changeGroupLock && hasClipOnTrack) {
                 static_cast<AbstractGroupItem *>(selection.at(i))->setItemLocked(lock);
             }
         } else if ((selection.at(i)->type() == AVWidget || selection.at(i)->type() == TransitionWidget)) {
             if (selection.at(i)->parentItem()) {
                 if (selection.at(i)->parentItem() == m_selectionGroup) {
                     selection.removeAll(static_cast<QGraphicsItem *>(m_selectionGroup));
                     resetSelectionGroup();
                 } else {
                     // groups are handled separately
                     continue;
                 }
             }
 
             if (selection.at(i)->isSelected()) {
                 if (selection.at(i)->type() == AVWidget) {
                     emit clipItemSelected(nullptr);
                 } else {
                     emit transitionItemSelected(nullptr);
                 }
             }
             clip = static_cast <AbstractClipItem *>(selection.at(i));
             clip->setItemLocked(lock);
             if (clip == m_dragItem) {
                 m_dragItem->setMainSelectedClip(false);
                 m_dragItem = nullptr;
             }
         }
     }
     //qCDebug(KDENLIVE_LOG) << "NEXT TRK STATE: " << m_timeline->getTrackInfo(tracknumber).isLocked;
     viewport()->update();
 }
 
 QList<QGraphicsItem *> CustomTrackView::checkForGroups(const QRectF &rect, bool *ok)
 {
     // Check there is no group going over several tracks there, or that would result in timeline corruption
     QList<QGraphicsItem *> selection = scene()->items(rect);
     *ok = true;
     int maxHeight = m_tracksHeight * 1.5;
     for (int i = 0; i < selection.count(); ++i) {
         // Check that we don't try to move a group with clips on other tracks
         if (selection.at(i)->type() == GroupWidget && (selection.at(i)->boundingRect().height() >= maxHeight)) {
             *ok = false;
             break;
         } else if (selection.at(i)->parentItem() && (selection.at(i)->parentItem()->boundingRect().height() >= maxHeight)) {
             *ok = false;
             break;
         }
     }
     return selection;
 }
 
 void CustomTrackView::slotRemoveSpace(bool multiTrack)
 {
     GenTime pos;
     int track = 0;
     if (m_menuPosition.isNull()) {
         pos = GenTime(cursorPos(), m_document->fps());
 
         QPointer<TrackDialog> d = new TrackDialog(m_timeline, parentWidget());
         d->comboTracks->setCurrentIndex(m_selectedTrack);
         d->label->setText(i18n("Track"));
         d->track_name->setHidden(true);
         d->name_label->setHidden(true);
         d->before_select->setHidden(true);
         d->setWindowTitle(i18n("Remove Space"));
         d->video_track->setHidden(true);
         d->audio_track->setHidden(true);
         if (d->exec() != QDialog::Accepted) {
             delete d;
             return;
         }
         // TODO check that this is the correct index
         track = m_timeline->visibleTracksCount() - d->comboTracks->currentIndex();
         delete d;
     } else {
         pos = GenTime((int)(mapToScene(m_menuPosition).x()), m_document->fps());
         track = getTrackFromPos(mapToScene(m_menuPosition).y());
     }
 
     if (m_timeline->isTrackLocked(track)) {
         emit displayMessage(i18n("Cannot remove space in a locked track"), ErrorMessage);
         return;
     }
 
     ClipItem *item = getClipItemAtMiddlePoint(pos.frames(m_document->fps()), track);
     if (item) {
         emit displayMessage(i18n("You must be in an empty space to remove space (time: %1, track: %2)", m_document->timecode().getTimecodeFromFrames(mapToScene(m_menuPosition).x()), track), ErrorMessage);
         return;
     }
     int length = m_timeline->getSpaceLength(pos, track, true);
     if (length <= 0) {
         emit displayMessage(i18n("You must be in an empty space to remove space (time: %1, track: %2)", m_document->timecode().getTimecodeFromFrames(mapToScene(m_menuPosition).x()), track), ErrorMessage);
         return;
     }
 
     QList<QGraphicsItem *> selection;
     if (multiTrack) {
         selection = selectAllItemsToTheRight(pos.frames(m_document->fps()));
     } else {
         if (spaceToolSelectTrackOnly(track, selection, pos) == -1) {
             return;
         }
     }
     createGroupForSelectedItems(selection);
     QList<AbstractClipItem *> items;
     foreach (QGraphicsItem *i, selection) {
         if (i->type() == AVWidget || i->type() == TransitionWidget) {
             items << (AbstractClipItem *) i;
         }
     }
     GenTime timeOffset(-length, m_document->fps());
     if (canBePasted(items, timeOffset, 0)) {
         completeSpaceOperation(multiTrack ? -1 : track, timeOffset, true);
     } else {
         // Conflict, cannot move clips
         emit displayMessage(i18n("Clip collision, cannot perform operation"), ErrorMessage);
         clearSelection();
         m_operationMode = None;
     }
 }
 
 void CustomTrackView::slotInsertSpace()
 {
     int pos;
     int track = 0;
     if (m_menuPosition.isNull()) {
         pos = cursorPos();
     } else {
         pos = (int) mapToScene(m_menuPosition).x();
         track = getTrackFromPos(mapToScene(m_menuPosition).y());
     }
     QPointer<SpacerDialog> d = new SpacerDialog(GenTime(65, m_document->fps()),
             m_document->timecode(), track, m_timeline->getTracksInfo(), this);
     if (d->exec() != QDialog::Accepted) {
         delete d;
         return;
     }
     GenTime spaceDuration = d->selectedDuration();
     track = d->selectedTrack();
     delete d;
 
     QList<QGraphicsItem *> items;
     if (track >= 0) {
         if (m_timeline->isTrackLocked(track)) {
             emit displayMessage(i18n("Cannot insert space in a locked track"), ErrorMessage);
             return;
         }
 
         ClipItem *item = getClipItemAtMiddlePoint(pos, track);
         if (item) {
             pos = item->startPos().frames(m_document->fps());
         }
 
         if (spaceToolSelectTrackOnly(track, items, GenTime(pos, m_document->fps())) == -1) {
             return;
         }
     } else {
         items = selectAllItemsToTheRight(pos);
     }
     createGroupForSelectedItems(items);
     completeSpaceOperation(track, spaceDuration, true);
 }
 
 void CustomTrackView::insertTimelineSpace(GenTime startPos, GenTime duration, int track, const QList<ItemInfo> &excludeList)
 {
     int pos = startPos.frames(m_document->fps());
     QRectF rect;
     if (track == -1) {
         // all tracks
         rect = QRectF(pos, 0, sceneRect().width() - pos, m_timeline->visibleTracksCount() * m_tracksHeight);
     } else {
         // selected track only
         rect = QRectF(pos, getPositionFromTrack(track) + m_tracksHeight / 2, sceneRect().width() - pos, m_timeline->visibleTracksCount() * 2);
     }
     QList<QGraphicsItem *> items = scene()->items(rect);
     QList<ItemInfo> clipsToMove;
     QList<ItemInfo> transitionsToMove;
     QList<AbstractClipItem *> excludedItems;
 
     for (int i = 0; i < items.count(); ++i) {
         if (items.at(i)->type() == AVWidget || items.at(i)->type() == TransitionWidget) {
             AbstractClipItem *item = static_cast <AbstractClipItem *>(items.at(i));
             if (m_timeline->getTrackInfo(item->track()).isLocked) {
                 continue;
             }
             if (excludeList.contains(item->info())) {
                 excludedItems << item;
                 item->setItemLocked(true);
                 continue;
             }
             if (item->type() == AVWidget) {
                 clipsToMove.append(item->info());
             } else if (item->type() == TransitionWidget) {
                 transitionsToMove.append(item->info());
             }
         }
     }
     if (!clipsToMove.isEmpty() || !transitionsToMove.isEmpty()) {
         insertSpace(clipsToMove, transitionsToMove, -1, duration, GenTime());
     }
     foreach (AbstractClipItem *item, excludedItems) {
         item->setItemLocked(false);
     }
 }
 
 void CustomTrackView::insertSpace(const QList<ItemInfo> &clipsToMove, const QList<ItemInfo> &transToMove, int track, const GenTime &duration, const GenTime &offset)
 {
     int diff = duration.frames(m_document->fps());
     resetSelectionGroup();
     m_selectionMutex.lock();
     m_selectionGroup = new AbstractGroupItem(m_document->fps());
     scene()->addItem(m_selectionGroup);
 
     // Create lists with start pos for each track
     QMap<int, int> trackClipStartList;
     QMap<int, int> trackTransitionStartList;
 
     for (int i = 1; i < m_timeline->tracksCount() + 1; ++i) {
         trackClipStartList[i] = -1;
         trackTransitionStartList[i] = -1;
     }
     if (!clipsToMove.isEmpty()) for (int i = 0; i < clipsToMove.count(); ++i) {
             ClipItem *clip = getClipItemAtStart(clipsToMove.at(i).startPos + offset, clipsToMove.at(i).track);
             if (clip) {
                 if (clip->parentItem()) {
                     m_selectionGroup->addItem(clip->parentItem());
                 } else {
                     m_selectionGroup->addItem(clip);
                 }
                 if (trackClipStartList.value(clipsToMove.at(i).track) == -1 || clipsToMove.at(i).startPos.frames(m_document->fps()) < trackClipStartList.value(clipsToMove.at(i).track)) {
                     trackClipStartList[clipsToMove.at(i).track] = clipsToMove.at(i).startPos.frames(m_document->fps());
                 }
             } else {
                 emit displayMessage(i18n("Cannot move clip at position %1, track %2", m_document->timecode().getTimecodeFromFrames((clipsToMove.at(i).startPos + offset).frames(m_document->fps())), clipsToMove.at(i).track), ErrorMessage);
             }
         }
     if (!transToMove.isEmpty()) for (int i = 0; i < transToMove.count(); ++i) {
             Transition *transition = getTransitionItemAtStart(transToMove.at(i).startPos + offset, transToMove.at(i).track);
             if (transition) {
                 if (transition->parentItem()) {
                     // If group has a locked item, ungroup first
                     AbstractGroupItem *grp = static_cast <AbstractGroupItem *>(transition->parentItem());
                     if (grp->isItemLocked()) {
                         m_document->clipManager()->removeGroup(grp);
                         if (grp == m_selectionGroup) {
                             m_selectionGroup = nullptr;
                         }
                         scene()->destroyItemGroup(grp);
                         transition->setItemLocked(false);
                         m_selectionGroup->addItem(transition);
                     } else {
                         m_selectionGroup->addItem(transition->parentItem());
                     }
                 } else {
                     m_selectionGroup->addItem(transition);
                 }
                 if (trackTransitionStartList.value(transToMove.at(i).track) == -1 || transToMove.at(i).startPos.frames(m_document->fps()) < trackTransitionStartList.value(transToMove.at(i).track)) {
                     trackTransitionStartList[transToMove.at(i).track] = transToMove.at(i).startPos.frames(m_document->fps());
                 }
             } else {
                 emit displayMessage(i18n("Cannot move transition at position %1, track %2", m_document->timecode().getTimecodeFromFrames(transToMove.at(i).startPos.frames(m_document->fps())), transToMove.at(i).track), ErrorMessage);
             }
         }
 
     m_selectionGroup->setTransform(QTransform::fromTranslate(diff, 0), true);
 
     // update items coordinates
     QList<QGraphicsItem *> itemList = m_selectionGroup->childItems();
     QList<AbstractGroupItem *> groupList;
 
     for (int i = 0; i < itemList.count(); ++i) {
         if (itemList.at(i)->type() == AVWidget || itemList.at(i)->type() == TransitionWidget) {
             int realTrack = getTrackFromPos(itemList.at(i)->scenePos().y());
             static_cast < AbstractClipItem *>(itemList.at(i))->updateItem(realTrack);
         } else if (itemList.at(i)->type() == GroupWidget) {
             AbstractGroupItem *group = static_cast < AbstractGroupItem *>(itemList.at(i));
             groupList << group;
             m_document->clipManager()->removeGroup(group);
             QList<QGraphicsItem *> children = itemList.at(i)->childItems();
             for (int j = 0; j < children.count(); ++j) {
                 AbstractClipItem *clp = static_cast < AbstractClipItem *>(children.at(j));
                 int realTrack = getTrackFromPos(clp->scenePos().y());
                 clp->updateItem(realTrack);
             }
         }
     }
     m_selectionMutex.unlock();
     resetSelectionGroup(false);
     // Rebuild groups after translate
     foreach (AbstractGroupItem *grp, groupList) {
         rebuildGroup(grp);
     }
     m_document->renderer()->mltInsertSpace(trackClipStartList, trackTransitionStartList, track, duration, offset);
 }
 
 void CustomTrackView::deleteClip(const QString &clipId, QUndoCommand *deleteCommand)
 {
     resetSelectionGroup();
     QList<QGraphicsItem *> itemList = items();
     int count = 0;
     QList<ItemInfo> range;
     RefreshMonitorCommand *firstRefresh = new RefreshMonitorCommand(this, ItemInfo(), false, true, deleteCommand);
     for (int i = 0; i < itemList.count(); ++i) {
         if (itemList.at(i)->type() == AVWidget) {
             ClipItem *item = static_cast<ClipItem *>(itemList.at(i));
             if (item->getBinId() == clipId) {
                 count++;
                 if (item->hasVisibleVideo()) {
                     range << item->info();
                 }
                 if (item->parentItem()) {
                     // Clip is in a group, destroy the group
                     new GroupClipsCommand(this, QList<ItemInfo>() << item->info(), QList<ItemInfo>(), false, true, deleteCommand);
                 }
                 new AddTimelineClipCommand(this, item->getBinId(), item->info(), item->effectList(), item->clipState(), true, true, false, deleteCommand);
                 // Check if it is a title clip with automatic transition, than remove it
                 if (item->clipType() == Text) {
                     Transition *tr = getTransitionItemAtStart(item->startPos(), item->track());
                     if (tr && tr->endPos() == item->endPos()) {
                         new AddTransitionCommand(this, tr->info(), tr->transitionEndTrack(), tr->toXML(), true, true, deleteCommand);
                     }
                 }
             }
         }
     }
     if (count > 0) {
         firstRefresh->updateRange(range);
         new RefreshMonitorCommand(this, range, true, false, deleteCommand);
         updateTrackDuration(-1, deleteCommand);
     }
 }
 
 void CustomTrackView::seekCursorPos(int pos)
 {
     emit updateRuler(pos);
     m_document->renderer()->seek(pos);
 }
 
 int CustomTrackView::seekPosition() const
 {
     int seek = m_document->renderer()->requestedSeekPosition;
     if (seek == SEEK_INACTIVE) {
         return m_cursorPos;
     }
     return seek;
 }
 
 void CustomTrackView::setCursorPos(int pos)
 {
     if (pos != m_cursorPos) {
         emit cursorMoved(m_cursorPos, pos);
         if (m_moveOpMode == RollingStart || m_moveOpMode == RollingEnd) {
             TrimManager *mgr = qobject_cast<TrimManager *>(m_toolManagers.value(AbstractToolManager::TrimType));
             mgr->moveRoll(pos > m_cursorPos, pos);
         }
         m_cursorPos = pos;
         m_cursorLine->setPos(m_cursorPos + m_cursorOffset, 0);
         if (m_autoScroll) {
             checkScrolling();
         }
     }
     //else emit updateRuler();
 }
 
 int CustomTrackView::cursorPos() const
 {
     return m_cursorPos;
 }
 
 void CustomTrackView::moveCursorPos(int delta)
 {
     int currentPos = m_document->renderer()->requestedSeekPosition;
     if (currentPos == SEEK_INACTIVE) {
         currentPos = m_document->renderer()->seekFramePosition() + delta;
     } else {
         currentPos += delta;
     }
     emit updateRuler(currentPos);
     m_document->renderer()->seek(qMax(0, currentPos));
 }
 
 void CustomTrackView::initCursorPos(int pos)
 {
     emit cursorMoved(m_cursorPos, pos);
     m_cursorPos = pos;
     m_cursorLine->setPos(m_cursorPos + 0.5, 0);
     checkScrolling();
 }
 
 void CustomTrackView::checkScrolling()
 {
     double xPos = seekPosition();
     QRectF viewRect = mapToScene(rect()).boundingRect();
     if (xPos - viewRect.left() < 50 || viewRect.right() - xPos < 50) {
         QGraphicsView::ViewportUpdateMode mode = viewportUpdateMode();
         setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
         ensureVisible(xPos, viewRect.top() + 5, 2, 2, 50, 0);
         setViewportUpdateMode(mode);
     }
 }
 
 void CustomTrackView::scrollToStart()
 {
     horizontalScrollBar()->setValue(0);
 }
 
 void CustomTrackView::completeSpaceOperation(int track, GenTime &timeOffset, bool fromStart)
 {
     QList<AbstractGroupItem *> groups;
 
     if (timeOffset != GenTime()) {
         QList<QGraphicsItem *> items = m_selectionGroup->childItems();
 
         QList<ItemInfo> clipsToMove;
         QList<ItemInfo> transitionsToMove;
 
         // Create lists with start pos for each track
         QMap<int, int> trackClipStartList;
         QMap<int, int> trackTransitionStartList;
 
         for (int i = 1; i < m_timeline->tracksCount() + 1; ++i) {
             trackClipStartList[i] = -1;
             trackTransitionStartList[i] = -1;
         }
         for (int i = 0; i < items.count(); ++i) {
             if (items.at(i)->type() == GroupWidget) {
                 AbstractGroupItem *group = static_cast<AbstractGroupItem *>(items.at(i));
                 if (!groups.contains(group)) {
                     groups.append(group);
                 }
                 items += items.at(i)->childItems();
             }
         }
 
         for (int i = 0; i < items.count(); ++i) {
             if (items.at(i)->type() == AVWidget) {
                 AbstractClipItem *item = static_cast <AbstractClipItem *>(items.at(i));
                 ItemInfo info = item->info();
                 clipsToMove.append(info);
                 int realTrack = getTrackFromPos(item->scenePos().y());
                 item->updateItem(realTrack);
                 if (trackClipStartList.value(info.track) == -1 ||
                         info.startPos.frames(m_document->fps()) < trackClipStartList.value(info.track)) {
                     trackClipStartList[info.track] = info.startPos.frames(m_document->fps());
                 }
             } else if (items.at(i)->type() == TransitionWidget) {
                 AbstractClipItem *item = static_cast <AbstractClipItem *>(items.at(i));
                 ItemInfo info = item->info();
                 transitionsToMove.append(info);
                 int realTrack = getTrackFromPos(item->scenePos().y());
                 item->updateItem(realTrack);
                 if (trackTransitionStartList.value(info.track) == -1 ||
                         info.startPos.frames(m_document->fps()) < trackTransitionStartList.value(info.track)) {
                     trackTransitionStartList[info.track] = info.startPos.frames(m_document->fps());
                 }
             }
         }
         if (!clipsToMove.isEmpty() || !transitionsToMove.isEmpty()) {
             QUndoCommand *command = new QUndoCommand;
             command->setText(timeOffset < GenTime() ? i18n("Remove space") : i18n("Insert space"));
             //TODO: break groups upstream
             breakLockedGroups(clipsToMove, transitionsToMove, command, fromStart);
             new InsertSpaceCommand(this, clipsToMove, transitionsToMove, track, timeOffset, fromStart, command);
             updateTrackDuration(track, command);
             m_commandStack->push(command);
             if (!fromStart) {
                 m_document->renderer()->mltInsertSpace(trackClipStartList, trackTransitionStartList, track, timeOffset, GenTime());
             }
         }
     }
     resetSelectionGroup();
     if (!fromStart) for (int i = 0; i < groups.count(); ++i) {
             rebuildGroup(groups.at(i));
         }
 
     clearSelection();
     m_operationMode = None;
 }
 
 void CustomTrackView::mouseReleaseEvent(QMouseEvent *event)
 {
     if (event->button() != Qt::LeftButton) {
         QGraphicsView::mouseReleaseEvent(event);
         return;
     }
 
     if (event->modifiers() & Qt::ControlModifier)  {
         event->ignore();
     }
 
     QGraphicsView::mouseReleaseEvent(event);
     setDragMode(QGraphicsView::NoDrag);
 
     if (m_moveOpMode == Seek || m_moveOpMode == ScrollTimeline || m_moveOpMode == ZoomTimeline) {
         m_moveOpMode = None;
         return;
     }
     m_clipDrag = false;
 
     /*if (m_dragItem == nullptr && m_selectionGroup == nullptr) {
         emit transitionItemSelected(nullptr);
     m_moveOpMode = None;
         return;
     }*/
     QPointF clickPoint = mapToScene(event->pos());
     GenTime clickFrame(clickPoint.x(), m_document->fps());
     m_currentToolManager->mouseRelease(event, m_selectionGroup ? m_selectionGroup->startPos() : GenTime());
     if (m_tool == SelectTool && m_currentToolManager->type() != AbstractToolManager::SelectType) {
         m_currentToolManager->closeTool();
         m_currentToolManager = m_toolManagers.value(AbstractToolManager::SelectType);
         m_currentToolManager->initTool(m_tracksHeight * m_scene->scale().y());
     }
     m_moveOpMode = None;
 }
 
 void CustomTrackView::deleteClip(const ItemInfo &info, bool refresh)
 {
     ClipItem *item = getClipItemAtStart(info.startPos, info.track, info.endPos);
     m_ct++;
     if (!item) {
         return;
     }
     //m_document->renderer()->saveSceneList(QString("/tmp/error%1.mlt").arg(m_ct), QDomElement());
     if (!m_timeline->track(info.track)->del(info.startPos.seconds())) {
         qCDebug(KDENLIVE_LOG) << " / / /CANNOT DELETE CLIP AT: " << info.startPos.frames(25);
         emit displayMessage(i18n("Error removing clip at %1 on track %2", m_document->timecode().getTimecodeFromFrames(info.startPos.frames(m_document->fps())), m_timeline->getTrackInfo(info.track).trackName), ErrorMessage);
         return;
     }
     item->stopThumbs();
     item->binClip()->removeRef();
     if (item->isSelected()) {
         emit clipItemSelected(nullptr);
     }
     if (m_dragItem == item) {
         m_dragItem->setMainSelectedClip(false);
         m_dragItem = nullptr;
     }
     if (refresh && !item->hasVisibleVideo()) {
         refresh = false;
     }
     delete item;
     item = nullptr;
     if (refresh) {
         monitorRefresh(info, true);
     }
 }
 
 void CustomTrackView::deleteSelectedClips()
 {
     resetSelectionGroup();
     QList<QGraphicsItem *> itemList = scene()->selectedItems();
     if (itemList.isEmpty()) {
         emit displayMessage(i18n("Select clip to delete"), ErrorMessage);
         return;
     }
     scene()->clearSelection();
     QUndoCommand *deleteSelected = new QUndoCommand();
     RefreshMonitorCommand *firstRefresh = new RefreshMonitorCommand(this, ItemInfo(), false, true, deleteSelected);
 
     int groupCount = 0;
     int clipCount = 0;
     int transitionCount = 0;
     // expand & destroy groups
     QList<ItemInfo> range;
     for (int i = 0; i < itemList.count(); ++i) {
         if (itemList.at(i)->type() == GroupWidget) {
             groupCount++;
             QList<QGraphicsItem *> children = itemList.at(i)->childItems();
             QList<ItemInfo> clipInfos;
             QList<ItemInfo> transitionInfos;
             for (int j = 0; j < children.count(); ++j) {
                 if (children.at(j)->type() == AVWidget) {
                     AbstractClipItem *clip = static_cast <AbstractClipItem *>(children.at(j));
                     if (!clip->isItemLocked()) {
                         clipInfos.append(clip->info());
                     }
                 } else if (children.at(j)->type() == TransitionWidget) {
                     AbstractClipItem *clip = static_cast <AbstractClipItem *>(children.at(j));
                     if (!clip->isItemLocked()) {
                         transitionInfos.append(clip->info());
                     }
                 }
                 if (itemList.contains(children.at(j))) {
                     children.removeAt(j);
                     j--;
                 }
             }
             itemList += children;
             if (!clipInfos.isEmpty()) {
                 new GroupClipsCommand(this, clipInfos, transitionInfos, false, true, deleteSelected);
             }
 
         } else if (itemList.at(i)->parentItem() && itemList.at(i)->parentItem()->type() == GroupWidget) {
             itemList.insert(i + 1, itemList.at(i)->parentItem());
         }
     }
     emit clipItemSelected(nullptr);
     emit transitionItemSelected(nullptr);
     for (int i = 0; i < itemList.count(); ++i) {
         if (itemList.at(i)->type() == AVWidget) {
             clipCount++;
             ClipItem *item = static_cast <ClipItem *>(itemList.at(i));
             new AddTimelineClipCommand(this, item->getBinId(), item->info(), item->effectList(), item->clipState(), true, true, false, deleteSelected);
             // Check if it is a title clip with automatic transition, than remove it
             if (item->clipType() == Text) {
                 Transition *tr = getTransitionItemAtStart(item->startPos(), item->track());
                 if (tr && !itemList.contains(tr) && tr->isAutomatic() && tr->endPos() == item->endPos()) {
                     new AddTransitionCommand(this, tr->info(), tr->transitionEndTrack(), tr->toXML(), true, true, deleteSelected);
                 }
             }
         } else if (itemList.at(i)->type() == TransitionWidget) {
             transitionCount++;
             Transition *item = static_cast <Transition *>(itemList.at(i));
             new AddTransitionCommand(this, item->info(), item->transitionEndTrack(), item->toXML(), true, true, deleteSelected);
         }
     }
     if (groupCount > 0 && clipCount == 0 && transitionCount == 0) {
         deleteSelected->setText(i18np("Delete selected group", "Delete selected groups", groupCount));
     } else if (clipCount > 0 && groupCount == 0 && transitionCount == 0) {
         deleteSelected->setText(i18np("Delete selected clip", "Delete selected clips", clipCount));
     } else if (transitionCount > 0 && groupCount == 0 && clipCount == 0) {
         deleteSelected->setText(i18np("Delete selected transition", "Delete selected transitions", transitionCount));
     } else {
         deleteSelected->setText(i18n("Delete selected items"));
     }
     updateTrackDuration(-1, deleteSelected);
     firstRefresh->updateRange(range);
     new RefreshMonitorCommand(this, range, true, false, deleteSelected);
     m_commandStack->push(deleteSelected);
 }
 
 void CustomTrackView::doChangeClipSpeed(const ItemInfo &info, const ItemInfo &speedIndependantInfo, PlaylistState::ClipState state, const double speed, int strobe, const QString &id, bool removeEffect)
 {
     ClipItem *item = getClipItemAtStart(info.startPos, info.track);
     if (!item) {
         //qCDebug(KDENLIVE_LOG) << "ERROR: Cannot find clip for speed change";
         emit displayMessage(i18n("Cannot find clip for speed change"), ErrorMessage);
         return;
     }
     if (speed == item->speed()) {
         // Nothing to do, abort
         return;
     }
     int endPos = m_timeline->changeClipSpeed(info, speedIndependantInfo, state, speed, strobe, m_document->renderer()->getBinProducer(id), removeEffect);
     if (endPos >= 0) {
         item->setSpeed(speed, strobe);
         item->updateRectGeometry();
         if (item->cropDuration().frames(m_document->fps()) != endPos - 1) {
             item->resizeEnd((int) info.startPos.frames(m_document->fps()) + endPos);
         }
         updatePositionEffects(item, info, false);
     } else {
         emit displayMessage(i18n("Invalid clip"), ErrorMessage);
     }
 }
 
 void CustomTrackView::cutSelectedClips(QList<QGraphicsItem *> itemList, GenTime currentPos)
 {
     if (itemList.isEmpty()) {
         itemList = scene()->selectedItems();
     }
     QList<AbstractGroupItem *> groups;
     if (currentPos == GenTime()) {
         currentPos = GenTime(m_cursorPos, m_document->fps());
     }
     if (itemList.isEmpty()) {
         // Fetch clip on selected track / under cursor
         ClipItem *under = getClipItemAtMiddlePoint(m_cursorPos, m_selectedTrack);
         if (under) {
             itemList << under;
         }
     }
     QUndoCommand *command = new QUndoCommand;
     command->setText(i18n("Razor clip"));
     for (int i = 0; i < itemList.count(); ++i) {
         if (!itemList.at(i)) {
             continue;
         }
         if (itemList.at(i)->type() == AVWidget) {
             ClipItem *item = static_cast <ClipItem *>(itemList.at(i));
             if (item->parentItem() && item->parentItem() != m_selectionGroup) {
                 AbstractGroupItem *group = static_cast <AbstractGroupItem *>(item->parentItem());
                 if (!groups.contains(group)) {
                     groups << group;
                 }
             } else if (currentPos > item->startPos() && currentPos < item->endPos()) {
                 new RazorClipCommand(this, item->info(), item->effectList(), currentPos, true, command);
             }
         } else if (itemList.at(i)->type() == GroupWidget && itemList.at(i) != m_selectionGroup) {
             AbstractGroupItem *group = static_cast<AbstractGroupItem *>(itemList.at(i));
             if (!groups.contains(group)) {
                 groups << group;
             }
         }
     }
     if (command->childCount() > 0) {
         m_commandStack->push(command);
     } else {
         delete command;
     }
 
     for (int i = 0; i < groups.count(); ++i) {
         razorGroup(groups.at(i), currentPos);
     }
 }
 
 void CustomTrackView::razorGroup(AbstractGroupItem *group, GenTime cutPos)
 {
     if (group) {
         QList<QGraphicsItem *> children = group->childItems();
         QUndoCommand *command = new QUndoCommand;
         command->setText(i18n("Cut Group"));
         groupClips(false, children, false, command);
         QList<ItemInfo> clips1, transitions1;
         QList<ItemInfo> transitionsCut;
         QList<ItemInfo> clips2, transitions2;
         QVector<QGraphicsItem *> clipsToCut;
 
         // Collect info
         for (int i = 0; i < children.count(); ++i) {
             children.at(i)->setSelected(false);
             AbstractClipItem *child = static_cast <AbstractClipItem *>(children.at(i));
             if (!child) {
                 continue;
             }
             if (child->type() == AVWidget) {
                 if (cutPos >= child->endPos()) {
                     clips1 << child->info();
                 } else if (cutPos <= child->startPos()) {
                     clips2 << child->info();
                 } else {
                     clipsToCut << child;
                 }
             } else {
                 if (cutPos > child->endPos()) {
                     transitions1 << child->info();
                 } else if (cutPos < child->startPos()) {
                     transitions2 << child->info();
                 } else {
                     //transitionsCut << child->info();
                     // Transition cut not implemented, leave it in first group...
                     transitions1 << child->info();
                 }
             }
         }
         if (clipsToCut.isEmpty() && transitionsCut.isEmpty() && ((clips1.isEmpty() && transitions1.isEmpty()) || (clips2.isEmpty() && transitions2.isEmpty()))) {
             delete command;
             return;
         }
         // Process the cut
         for (int i = 0; i < clipsToCut.count(); ++i) {
             ClipItem *clip = static_cast<ClipItem *>(clipsToCut.at(i));
             new RazorClipCommand(this, clip->info(), clip->effectList(), cutPos, true, command);
             ItemInfo info = clip->info();
             info.endPos = GenTime(cutPos.frames(m_document->fps()) - 1, m_document->fps());
             info.cropDuration = info.endPos - info.startPos;
             ItemInfo cutInfo = info;
             cutInfo.startPos = cutPos;
             cutInfo.cropDuration = cutInfo.endPos - cutInfo.startPos;
             clips1 << info;
             clips2 << cutInfo;
         }
         new GroupClipsCommand(this, clips1, transitions1, true, true, command);
         new GroupClipsCommand(this, clips2, transitions2, true, true, command);
         m_commandStack->push(command);
     }
 }
 
 void CustomTrackView::groupClips(bool group, QList<QGraphicsItem *> itemList, bool forceLock, QUndoCommand *command, bool doIt)
 {
     if (itemList.isEmpty()) {
         itemList = scene()->selectedItems();
     }
     QList<ItemInfo> clipInfos;
     QList<ItemInfo> transitionInfos;
     QList<QGraphicsItem *> existingGroups;
 
     // Expand groups
     int max = itemList.count();
     for (int i = 0; i < max; ++i) {
         QGraphicsItem *item = itemList.at(i);
         if (item->type() == GroupWidget && item != m_selectionGroup) {
             if (!existingGroups.contains(item)) {
                 existingGroups << item;
             }
             itemList += item->childItems();
         } else if (item->parentItem() && item->parentItem()->type() == GroupWidget) {
             AbstractGroupItem *grp = static_cast <AbstractGroupItem *>(item->parentItem());
             itemList += grp->childItems();
         }
     }
     QList<AbstractClipItem *> processedClips;
     for (int i = 0; i < itemList.count(); ++i) {
         if (itemList.at(i)->type() == AVWidget) {
             AbstractClipItem *clip = static_cast <AbstractClipItem *>(itemList.at(i));
             if (!processedClips.contains(clip) && (forceLock || !clip->isItemLocked())) {
                 clipInfos.append(clip->info());
                 processedClips << clip;
             }
         } else if (itemList.at(i)->type() == TransitionWidget) {
             AbstractClipItem *clip = static_cast <AbstractClipItem *>(itemList.at(i));
             if (!processedClips.contains(clip) && (forceLock || !clip->isItemLocked())) {
                 transitionInfos.append(clip->info());
                 processedClips << clip;
             }
         }
     }
     if (!clipInfos.isEmpty()) {
         // break previous groups
         QUndoCommand *metaCommand = nullptr;
         if (group && !command && !existingGroups.isEmpty()) {
             metaCommand = new QUndoCommand();
             metaCommand->setText(i18n("Group clips"));
         }
         for (int i = 0; group && i < existingGroups.count(); ++i) {
             AbstractGroupItem *grp = static_cast <AbstractGroupItem *>(existingGroups.at(i));
             QList<ItemInfo> clipGrpInfos;
             QList<ItemInfo> transitionGrpInfos;
             QList<QGraphicsItem *> items = grp->childItems();
             for (int j = 0; j < items.count(); ++j) {
                 if (items.at(j)->type() == AVWidget) {
                     AbstractClipItem *clip = static_cast <AbstractClipItem *>(items.at(j));
                     if (forceLock || !clip->isItemLocked()) {
                         clipGrpInfos.append(clip->info());
                     }
                 } else if (items.at(j)->type() == TransitionWidget) {
                     AbstractClipItem *clip = static_cast <AbstractClipItem *>(items.at(j));
                     if (forceLock || !clip->isItemLocked()) {
                         transitionGrpInfos.append(clip->info());
                     }
                 }
             }
             if (!clipGrpInfos.isEmpty() || !transitionGrpInfos.isEmpty()) {
                 if (command) {
                     new GroupClipsCommand(this, clipGrpInfos, transitionGrpInfos, false, doIt, command);
                 } else {
                     new GroupClipsCommand(this, clipGrpInfos, transitionGrpInfos, false, doIt, metaCommand);
                 }
                 if (!doIt) {
                     //Action must be performed right now
                     doGroupClips(clipGrpInfos, transitionGrpInfos, false);
                 }
             }
         }
         if (command) {
             // Create new group
             new GroupClipsCommand(this, clipInfos, transitionInfos, group, doIt, command);
         } else {
             if (metaCommand) {
                 new GroupClipsCommand(this, clipInfos, transitionInfos, group, doIt, metaCommand);
                 m_commandStack->push(metaCommand);
             } else {
                 GroupClipsCommand *groupCommand = new GroupClipsCommand(this, clipInfos, transitionInfos, group, doIt);
                 m_commandStack->push(groupCommand);
             }
         }
         if (!doIt) {
             //Action must be performed right now
             doGroupClips(clipInfos, transitionInfos, group);
         }
     }
 }
 
 void CustomTrackView::doGroupClips(const QList<ItemInfo> &clipInfos, const QList<ItemInfo> &transitionInfos, bool group)
 {
     resetSelectionGroup();
     m_scene->clearSelection();
     if (!group) {
         // ungroup, find main group to destroy it...
         for (int i = 0; i < clipInfos.count(); ++i) {
             ClipItem *clip = getClipItemAtStart(clipInfos.at(i).startPos, clipInfos.at(i).track);
             if (clip == nullptr) {
                 qCDebug(KDENLIVE_LOG) << " * ** Cannot find UNGROUP clip at: " << clipInfos.at(i).startPos.frames(25) << " / " << clipInfos.at(i).track;
                 continue;
             }
             if (clip->parentItem() && clip->parentItem()->type() == GroupWidget) {
                 AbstractGroupItem *grp = static_cast <AbstractGroupItem *>(clip->parentItem());
                 m_document->clipManager()->removeGroup(grp);
                 if (grp == m_selectionGroup) {
                     m_selectionGroup = nullptr;
                 }
                 scene()->destroyItemGroup(grp);
             }
             clip->setItemLocked(m_timeline->getTrackInfo(clip->track()).isLocked);
         }
         for (int i = 0; i < transitionInfos.count(); ++i) {
             Transition *tr = getTransitionItemAt(transitionInfos.at(i).startPos, transitionInfos.at(i).track);
             if (tr == nullptr) {
                 continue;
             }
             if (tr->parentItem() && tr->parentItem()->type() == GroupWidget) {
                 AbstractGroupItem *grp = static_cast <AbstractGroupItem *>(tr->parentItem());
                 m_document->clipManager()->removeGroup(grp);
                 if (grp == m_selectionGroup) {
                     m_selectionGroup = nullptr;
                 }
                 scene()->destroyItemGroup(grp);
                 grp = nullptr;
             }
             tr->setItemLocked(m_timeline->getTrackInfo(tr->track()).isLocked);
         }
         return;
     }
     QList<QGraphicsItem *>list;
     for (int i = 0; i < clipInfos.count(); ++i) {
         ClipItem *clip = getClipItemAtStart(clipInfos.at(i).startPos, clipInfos.at(i).track);
         if (clip && !list.contains(clip)) {
             list.append(clip);
             //clip->setSelected(true);
         }
     }
     for (int i = 0; i < transitionInfos.count(); ++i) {
         Transition *clip = getTransitionItemAt(transitionInfos.at(i).startPos, transitionInfos.at(i).track);
         if (clip && !list.contains(clip)) {
             list.append(clip);
             //clip->setSelected(true);
         }
     }
     groupSelectedItems(list, true, true);
 }
 
 void CustomTrackView::slotInfoProcessingFinished()
 {
     m_producerNotReady.wakeAll();
 }
 
 void CustomTrackView::addClip(const QString &clipId, const  ItemInfo &info, const EffectsList &effects, PlaylistState::ClipState state, bool refresh)
 {
     ProjectClip *binClip = m_document->getBinClip(clipId);
     if (!binClip) {
         emit displayMessage(i18n("Cannot insert clip."), ErrorMessage);
         return;
     }
     if (!binClip->isReady()) {
         // If the clip has no producer, we must wait until it is created...
         emit displayMessage(i18n("Waiting for clip..."), InformationMessage);
         m_document->forceProcessing(clipId);
         // If the clip is not ready, give it 10x3 seconds to complete the task...
         for (int i = 0; i < 10; ++i) {
             if (!binClip->isReady()) {
                 m_mutex.lock();
                 m_producerNotReady.wait(&m_mutex, 3000);
                 m_mutex.unlock();
             } else {
                 break;
             }
         }
         if (!binClip->isReady()) {
             emit displayMessage(i18n("Cannot insert clip..."), ErrorMessage);
             return;
         }
         emit displayMessage(QString(), InformationMessage);
     }
     QLocale locale;
     locale.setNumberOptions(QLocale::OmitGroupSeparator);
     // Get speed and strobe values from effects
     double speed = 1.0;
     int strobe = 1;
     QDomElement speedEffect = effects.effectById(QStringLiteral("speed"));
     if (!speedEffect.isNull()) {
         QDomNodeList nodes = speedEffect.elementsByTagName(QStringLiteral("parameter"));
         for (int i = 0; i < nodes.count(); ++i) {
             QDomElement e = nodes.item(i).toElement();
             if (e.attribute(QStringLiteral("name")) == QLatin1String("speed")) {
                 speed = locale.toDouble(e.attribute(QStringLiteral("value"), QStringLiteral("1")));
                 int factor = e.attribute(QStringLiteral("factor"), QStringLiteral("1")).toInt();
                 speed /= factor;
                 if (speed == 0) {
                     speed = 1;
                 }
             } else if (e.attribute(QStringLiteral("name")) == QLatin1String("strobe")) {
                 strobe = e.attribute(QStringLiteral("value"), QStringLiteral("1")).toInt();
             }
         }
     }
     ClipItem *item = new ClipItem(binClip, info, m_document->fps(), speed, strobe, getFrameWidth());
     connect(item, &AbstractClipItem::selectItem, this, &CustomTrackView::slotSelectItem);
     item->setPos(info.startPos.frames(m_document->fps()), getPositionFromTrack(info.track) + 1 + item->itemOffset());
     item->setState(state);
     item->setEffectList(effects);
     scene()->addItem(item);
     bool isLocked = m_timeline->getTrackInfo(info.track).isLocked;
     if (isLocked) {
         item->setItemLocked(true);
     }
     bool duplicate = true;
     Mlt::Producer *prod;
     if (speed != 1.0) {
         prod = m_document->renderer()->getBinProducer(clipId);
         QString url = QString::fromUtf8(prod->get("resource"));
         //url.append(QLatin1Char('?') + locale.toString(speed));
         Track::SlowmoInfo slowInfo;
         slowInfo.speed = speed;
         slowInfo.strobe = strobe;
         slowInfo.state = state;
         Mlt::Producer *copy = m_document->renderer()->getSlowmotionProducer(slowInfo.toString(locale) + url);
         if (copy == nullptr) {
             url.prepend(locale.toString(speed) + QLatin1Char(':'));
             Mlt::Properties passProperties;
             Mlt::Properties original(prod->get_properties());
             passProperties.pass_list(original, ClipController::getPassPropertiesList(false));
             copy = m_timeline->track(info.track)->buildSlowMoProducer(passProperties, url, clipId, slowInfo);
         }
         if (copy == nullptr) {
             emit displayMessage(i18n("Cannot insert clip..."), ErrorMessage);
             return;
         }
         prod = copy;
         duplicate = false;
     } else if (item->clipState() == PlaylistState::VideoOnly) {
         prod = m_document->renderer()->getBinVideoProducer(clipId);
     } else {
         prod = m_document->renderer()->getBinProducer(clipId);
     }
     binClip->addRef();
     m_timeline->track(info.track)->add(info.startPos.seconds(), prod, info.cropStart.seconds(), (info.cropStart + info.cropDuration).seconds(), state, duplicate, TimelineMode::NormalEdit); // m_scene->editMode());
 
     for (int i = 0; i < item->effectsCount(); ++i) {
         m_timeline->track(info.track)->addEffect(info.startPos.seconds(), EffectsController::getEffectArgs(m_document->getProfileInfo(), item->effect(i)));
     }
     if (refresh && item->hasVisibleVideo()) {
         monitorRefresh(info, true);
     }
 }
 
 void CustomTrackView::slotUpdateClip(const QString &clipId, bool reload)
 {
     QMutexLocker locker(&m_mutex);
     QList<QGraphicsItem *> list = scene()->items();
     QList<ClipItem *>clipList;
     ClipItem *clip = nullptr;
     //TODO: move the track replacement code in track.cpp
     Mlt::Tractor *tractor = m_document->renderer()->lockService();
     for (int i = 0; i < list.size(); ++i) {
         if (list.at(i)->type() == AVWidget) {
             clip = static_cast <ClipItem *>(list.at(i));
             if (clip->getBinId() == clipId) {
                 //TODO: get audio / video only producers
                 /*ItemInfo info = clip->info();
                 if (clip->isAudioOnly()) prod = baseClip->getTrackProducer(info.track);
                 else if (clip->isVideoOnly()) prod = baseClip->getTrackProducer(info.track);
                 else prod = baseClip->getTrackProducer(info.track);*/
                 if (reload) {
                     /*Mlt::Producer *prod = m_document->renderer()->getTrackProducer(clipId, info.track, clip->isAudioOnly(), clip->isVideoOnly());
                     if (!m_document->renderer()->mltUpdateClip(tractor, info, clip->xml(), prod)) {
                         emit displayMessage(i18n("Cannot update clip (time: %1, track: %2)", info.startPos.frames(m_document->fps()), info.track), ErrorMessage);
                     }*/
                 } else {
                     clipList.append(clip);
                 }
             }
         }
     }
     for (int i = 0; i < clipList.count(); ++i) {
         clipList.at(i)->refreshClip(true, true);
     }
     m_document->renderer()->unlockService(tractor);
 }
 
 ClipItem *CustomTrackView::getClipItemAtEnd(GenTime pos, int track)
 {
     int framepos = (int)(pos.frames(m_document->fps()));
     QList<QGraphicsItem *> list = scene()->items(QPointF(framepos - 1, getPositionFromTrack(track) + m_tracksHeight / 2));
     ClipItem *clip = nullptr;
     for (int i = 0; i < list.size(); ++i) {
         if (!list.at(i)->isEnabled()) {
             continue;
         }
         if (list.at(i)->type() == AVWidget) {
             ClipItem *test = static_cast <ClipItem *>(list.at(i));
             if (test->endPos() == pos) {
                 clip = test;
             }
             break;
         }
     }
     return clip;
 }
 
 ClipItem *CustomTrackView::getClipItemAtStart(GenTime pos, int track, GenTime end)
 {
     QList<QGraphicsItem *> list = scene()->items(QPointF(pos.frames(m_document->fps()), getPositionFromTrack(track) + m_tracksHeight / 2));
     ClipItem *clip = nullptr;
     for (int i = 0; i < list.size(); ++i) {
         if (!list.at(i)->isEnabled()) {
             /*ClipItem *test = static_cast <ClipItem *>(list.at(i));
             qCDebug(KDENLIVE_LOG)<<" * * *DISABLED CLIP: "<<i<<", "<<test->startPos().frames(25);*/
             continue;
         }
         if (list.at(i)->type() == AVWidget) {
             ClipItem *test = static_cast <ClipItem *>(list.at(i));
             //qCDebug(KDENLIVE_LOG)<<" * * *ENABLED CLIP: "<<i<<", "<<test->startPos().frames(25)<<" = "<<pos.frames(25);
             if (test->startPos() == pos) {
                 if (end > GenTime()) {
                     if (test->endPos() != end) {
                         //qCDebug(KDENLIVE_LOG)<<" - - - -- - -NO END MATCH: "<<test->endPos().frames(25)<<" = "<< end.frames(25);
                         continue;
                     }
                 }
                 clip = test;
                 break;
             }
         }
     }
     return clip;
 }
 
 ClipItem *CustomTrackView::getMovedClipItem(const ItemInfo &info, GenTime offset, int trackOffset)
 {
     QList<QGraphicsItem *> list = scene()->items(QPointF((info.startPos + offset).frames(m_document->fps()), getPositionFromTrack(info.track + trackOffset) + m_tracksHeight / 2));
     ClipItem *clip = nullptr;
     for (int i = 0; i < list.size(); ++i) {
         //if (!list.at(i)->isEnabled()) continue;
         if (list.at(i)->type() == AVWidget) {
             ClipItem *test = static_cast <ClipItem *>(list.at(i));
             if (test->startPos() == info.startPos) {
                 if (test->endPos() != info.endPos) {
                     continue;
                 }
             }
             clip = test;
             break;
         }
     }
     return clip;
 }
 
 ClipItem *CustomTrackView::getClipItemAtMiddlePoint(int pos, int track)
 {
     const QPointF p(pos, getPositionFromTrack(track) + m_tracksHeight / 2);
     QList<QGraphicsItem *> list = scene()->items(p);
     ClipItem *clip = nullptr;
     for (int i = 0; i < list.size(); ++i) {
         if (!list.at(i)->isEnabled()) {
             continue;
         }
         if (list.at(i)->type() == AVWidget) {
             clip = static_cast <ClipItem *>(list.at(i));
             break;
         }
     }
     return clip;
 }
 
 ClipItem *CustomTrackView::getUpperClipItemAt(int pos)
 {
     ClipItem *clip = nullptr;
     for (int i = m_timeline->tracksCount(); i > 0; i--) {
         clip = getClipItemAtMiddlePoint(pos, i);
         if (clip) {
             break;
         }
     }
     return clip;
 }
 
 Transition *CustomTrackView::getTransitionItemAt(int pos, int track, bool alreadyMoved)
 {
     const QPointF p(pos, getPositionFromTrack(track) + Transition::itemOffset() + 1);
     QList<QGraphicsItem *> list = scene()->items(p);
     Transition *clip = nullptr;
     for (int i = 0; i < list.size(); ++i) {
         if (!alreadyMoved && !list.at(i)->isEnabled()) {
             continue;
         }
         if (list.at(i)->type() == TransitionWidget) {
             clip = static_cast <Transition *>(list.at(i));
             break;
         }
     }
     return clip;
 }
 
 Transition *CustomTrackView::getTransitionItemAt(GenTime pos, int track, bool alreadyMoved)
 {
     return getTransitionItemAt(pos.frames(m_document->fps()), track, alreadyMoved);
 }
 
 Transition *CustomTrackView::getTransitionItemAtEnd(GenTime pos, int track)
 {
     int framepos = (int)(pos.frames(m_document->fps()));
     const QPointF p(framepos - 1, getPositionFromTrack(track) + Transition::itemOffset() + 1);
     QList<QGraphicsItem *> list = scene()->items(p);
     Transition *clip = nullptr;
     for (int i = 0; i < list.size(); ++i) {
         if (!list.at(i)->isEnabled()) {
             continue;
         }
         if (list.at(i)->type() == TransitionWidget) {
             Transition *test = static_cast <Transition *>(list.at(i));
             if (test->endPos() == pos) {
                 clip = test;
             }
             break;
         }
     }
     return clip;
 }
 
 Transition *CustomTrackView::getTransitionItemAtStart(GenTime pos, int track)
 {
     const QPointF p(pos.frames(m_document->fps()), getPositionFromTrack(track) + Transition::itemOffset() + 1);
     QList<QGraphicsItem *> list = scene()->items(p);
     Transition *clip = nullptr;
     for (int i = 0; i < list.size(); ++i) {
         if (!list.at(i)->isEnabled()) {
             continue;
         }
         if (list.at(i)->type() == TransitionWidget) {
             Transition *test = static_cast <Transition *>(list.at(i));
             if (test->startPos() == pos) {
                 clip = test;
             }
             break;
         }
     }
     return clip;
 }
 
 bool CustomTrackView::moveClip(const ItemInfo &start, const ItemInfo &end, bool refresh, bool alreadyMoved, ItemInfo *out_actualEnd)
 {
     if (m_selectionGroup) {
         resetSelectionGroup(false);
     }
     ClipItem *item = nullptr;
     if (alreadyMoved) {
         item = getClipItemAtStart(end.startPos, end.track);
     } else {
         item = getClipItemAtStart(start.startPos, start.track);
     }
     if (!item) {
         emit displayMessage(i18n("Cannot move clip at time: %1 on track %2", m_document->timecode().getTimecodeFromFrames(start.startPos.frames(m_document->fps())), start.track), ErrorMessage);
         //qCDebug(KDENLIVE_LOG) << "----------------  ERROR, CANNOT find clip to move at.. ";
         return false;
     }
 
 #ifdef DEBUG
     qCDebug(KDENLIVE_LOG) << "Moving item " << (long)item << " from .. to:";
     qCDebug(KDENLIVE_LOG) << item->info();
     qCDebug(KDENLIVE_LOG) << start;
     qCDebug(KDENLIVE_LOG) << end;
 #endif
     bool success = m_timeline->moveClip(start.track, start.startPos.seconds(), end.track, end.startPos.seconds(), item->clipState(), m_scene->editMode(), item->needsDuplicate());
     QList<ItemInfo> range;
     if (item->hasVisibleVideo()) {
         range << start << end;
     } else {
         refresh = false;
     }
     if (!success) {
         // undo last move and emit error message
         emit displayMessage(i18n("Cannot move clip to position %1", m_document->timecode().getTimecodeFromFrames(end.startPos.frames(m_document->fps()))), ErrorMessage);
     } else if (!alreadyMoved) {
         bool snap = KdenliveSettings::snaptopoints();
         KdenliveSettings::setSnaptopoints(false);
         item->setPos((int) end.startPos.frames(m_document->fps()), getPositionFromTrack(end.track) + 1);
 
         bool isLocked = m_timeline->getTrackInfo(end.track).isLocked;
         m_scene->clearSelection();
         if (isLocked) {
             item->setItemLocked(true);
         } else {
             if (item->isItemLocked()) {
                 item->setItemLocked(false);
             }
             item->setSelected(true);
         }
         //TODO
         /*
         if (item->baseClip()->isTransparent()) {
             // Also move automatic transition
             Transition *tr = getTransitionItemAt(start.startPos, start.track);
             if (tr && tr->isAutomatic()) {
                 tr->updateTransitionEndTrack(getPreviousVideoTrack(end.track));
                 m_document->renderer()->mltMoveTransition(tr->transitionTag(), m_timeline->tracksCount() - start.track, m_timeline->tracksCount() - end.track, tr->transitionEndTrack(), start.startPos, start.endPos, end.startPos, end.endPos);
                 tr->setPos((int) end.startPos.frames(m_document->fps()), (int)(end.track * m_tracksHeight + 1));
             }
         }*/
         KdenliveSettings::setSnaptopoints(snap);
     }
     if (refresh) {
         monitorRefresh(range, true);
     }
     if (out_actualEnd != nullptr) {
         *out_actualEnd = item->info();
 #ifdef DEBUG
         qCDebug(KDENLIVE_LOG) << "Actual end position updated:" << *out_actualEnd;
 #endif
     }
 #ifdef DEBUG
     qCDebug(KDENLIVE_LOG) << item->info();
 #endif
     return success;
 }
 
 void CustomTrackView::moveGroup(QList<ItemInfo> startClip, QList<ItemInfo> startTransition, const GenTime &offset, const int trackOffset, bool alreadyMoved, bool reverseMove)
 {
     // Group Items
     resetSelectionGroup();
     m_scene->clearSelection();
     m_selectionMutex.lock();
     m_selectionGroup = new AbstractGroupItem(m_document->fps());
     scene()->addItem(m_selectionGroup);
     QList<ItemInfo> range;
     m_document->renderer()->blockSignals(true);
     for (int i = 0; i < startClip.count(); ++i) {
         if (reverseMove) {
             startClip[i].startPos = startClip.at(i).startPos - offset;
             startClip[i].track = startClip.at(i).track - trackOffset;
         }
         ClipItem *clip = nullptr;
         if (alreadyMoved) {
             clip = getMovedClipItem(startClip.at(i), offset, trackOffset);
         } else {
             clip = getClipItemAtStart(startClip.at(i).startPos, startClip.at(i).track);
         }
         if (clip) {
             if (clip->hasVisibleVideo()) {
                 ItemInfo updateInfo = startClip.at(i);
                 range << updateInfo;
                 updateInfo.startPos += offset;
                 updateInfo.endPos += offset;
                 range << updateInfo;
             }
             if (clip->parentItem()) {
                 m_selectionGroup->addItem(clip->parentItem());
                 // If timeline clip is already at destination, make sure it is not moved twice
                 if (alreadyMoved) {
                     clip->parentItem()->setEnabled(false);
                 }
             } else {
                 m_selectionGroup->addItem(clip);
                 if (alreadyMoved) {
                     clip->setEnabled(false);
                 }
             }
             m_timeline->track(startClip.at(i).track)->del(startClip.at(i).startPos.seconds(), false);
         } else {
             qCDebug(KDENLIVE_LOG) << "//MISSING CLIP AT: " << startClip.at(i).startPos.frames(25) << " / track: " << startClip.at(i).track << " / OFFSET: " << trackOffset;
         }
     }
     for (int i = 0; i < startTransition.count(); ++i) {
         if (reverseMove) {
             startTransition[i].startPos = startTransition.at(i).startPos - offset;
             startTransition[i].track = startTransition.at(i).track - trackOffset;
         }
         Transition *tr = nullptr;
         if (alreadyMoved) {
             tr = getTransitionItemAt(startTransition.at(i).startPos + offset, startTransition.at(i).track + trackOffset, true);
         } else {
             tr = getTransitionItemAt(startTransition.at(i).startPos, startTransition.at(i).track);
         }
         if (tr) {
             ItemInfo updateInfo = startTransition.at(i);
             range << updateInfo;
             updateInfo.startPos += offset;
             updateInfo.endPos += offset;
             range << updateInfo;
             if (tr->parentItem()) {
                 m_selectionGroup->addItem(tr->parentItem());
                 if (alreadyMoved) {
                     tr->parentItem()->setEnabled(false);
                 }
             } else {
                 m_selectionGroup->addItem(tr);
                 if (alreadyMoved) {
                     tr->setEnabled(false);
                 }
             }
             m_timeline->transitionHandler->deleteTransition(tr->transitionTag(), tr->transitionEndTrack(), startTransition.at(i).track, startTransition.at(i).startPos, startTransition.at(i).endPos, tr->toXML());
         } else {
             qCDebug(KDENLIVE_LOG) << "//MISSING TRANSITION AT: " << startTransition.at(i).startPos.frames(25) << ", track: " << startTransition.at(i).track;
         }
     }
     m_document->renderer()->blockSignals(false);
 
     if (m_selectionGroup) {
         bool snap = KdenliveSettings::snaptopoints();
         KdenliveSettings::setSnaptopoints(false);
 
         if (!alreadyMoved) {
             m_selectionGroup->setTransform(QTransform::fromTranslate(offset.frames(m_document->fps()), -trackOffset * (qreal) m_tracksHeight), true);
         }
 
         QList<QGraphicsItem *> children = m_selectionGroup->childItems();
         QList<AbstractGroupItem *> groupList;
         // Expand groups
         int max = children.count();
         for (int i = 0; i < max; ++i) {
             if (children.at(i)->type() == GroupWidget) {
                 QList<QGraphicsItem *> groupChildren = children.at(i)->childItems();
                 for (int j = 0; j < groupChildren.count(); j++) {
                     AbstractClipItem *item = static_cast<AbstractClipItem *>(groupChildren.at(j));
                     ItemInfo nfo = item->info();
                     item->updateItem(nfo.track + trackOffset);
                 }
                 children += groupChildren;
                 //AbstractGroupItem *grp = static_cast<AbstractGroupItem *>(children.at(i));
                 //grp->moveBy(offset.frames(m_document->fps()), trackOffset *(qreal) m_tracksHeight);
                 /*m_document->clipManager()->removeGroup(grp);
                 m_scene->destroyItemGroup(grp);*/
                 AbstractGroupItem *group = static_cast<AbstractGroupItem *>(children.at(i));
                 if (!groupList.contains(group)) {
                     groupList.append(group);
                 }
                 children.removeAll(children.at(i));
                 --i;
             }
         }
         for (int i = 0; i < children.count(); ++i) {
             // re-add items in correct place
             if (children.at(i)->type() != AVWidget && children.at(i)->type() != TransitionWidget) {
                 continue;
             }
             AbstractClipItem *item = static_cast <AbstractClipItem *>(children.at(i));
             item->setEnabled(true);
             ItemInfo info = item->info();
             bool isLocked = m_timeline->getTrackInfo(info.track).isLocked;
             if (isLocked) {
                 item->setItemLocked(true);
             }
 
             if (item->type() == AVWidget) {
                 ClipItem *clip = static_cast <ClipItem *>(item);
                 Mlt::Producer *prod;
                 if (clip->clipState() == PlaylistState::VideoOnly) {
                     prod = m_document->renderer()->getBinVideoProducer(clip->getBinId());
                 } else {
                     prod = m_document->renderer()->getBinProducer(clip->getBinId());
                 }
                 m_timeline->track(info.track)->add(info.startPos.seconds(), prod, info.cropStart.seconds(), (info.cropStart + info.cropDuration).seconds(), clip->clipState(), true, m_scene->editMode());
 
                 for (int j = 0; j < clip->effectsCount(); ++j) {
                     m_timeline->track(info.track)->addEffect(info.startPos.seconds(), EffectsController::getEffectArgs(m_document->getProfileInfo(), clip->effect(j)));
                 }
             } else if (item->type() == TransitionWidget) {
                 Transition *tr = static_cast <Transition *>(item);
                 int newTrack;
                 if (!tr->forcedTrack()) {
                     newTrack = getPreviousVideoTrack(info.track);
                 } else {
                     newTrack = tr->transitionEndTrack() + trackOffset;
                     if (newTrack < 0 || newTrack > m_timeline->tracksCount()) {
                         newTrack = getPreviousVideoTrack(info.track);
                     }
                 }
                 tr->updateTransitionEndTrack(newTrack);
                 m_timeline->transitionHandler->addTransition(tr->transitionTag(), newTrack, info.track, info.startPos, info.endPos, tr->toXML());
             }
         }
         m_selectionMutex.unlock();
         resetSelectionGroup(true);
         for (int i = 0; i < groupList.count(); ++i) {
             rebuildGroup(groupList.at(i));
         }
         groupSelectedItems(children, false);
         m_timeline->checkDuration();
         //clearSelection();
         KdenliveSettings::setSnaptopoints(snap);
         //TODO: calculate affected ranges and invalidate previews
         monitorRefresh(range, true);
     } else {
         qCDebug(KDENLIVE_LOG) << "///////// WARNING; NO GROUP TO MOVE";
     }
 }
 
 void CustomTrackView::moveTransition(const ItemInfo &start, const ItemInfo &end, bool refresh)
 {
     Transition *item = getTransitionItemAt(start.startPos, start.track);
     if (!item) {
         emit displayMessage(i18n("Cannot move transition at time: %1 on track %2", m_document->timecode().getTimecodeFromFrames(start.startPos.frames(m_document->fps())), start.track), ErrorMessage);
         //qCDebug(KDENLIVE_LOG) << "----------------  ERROR, CANNOT find transition to move... ";// << startPos.x() * m_scale * FRAME_SIZE + 1 << ", " << startPos.y() * m_tracksHeight + m_tracksHeight / 2;
         return;
     }
 
     bool snap = KdenliveSettings::snaptopoints();
     KdenliveSettings::setSnaptopoints(false);
 
     if (end.endPos - end.startPos == start.endPos - start.startPos) {
         // Transition was moved
         item->setPos((int) end.startPos.frames(m_document->fps()), getPositionFromTrack(end.track) + 1);
     } else if (end.endPos == start.endPos) {
         // Transition start resize
         item->resizeStart((int) end.startPos.frames(m_document->fps()));
     } else if (end.startPos == start.startPos) {
         // Transition end resize;
         //qCDebug(KDENLIVE_LOG) << "// resize END: " << end.endPos.frames(m_document->fps());
         item->resizeEnd((int) end.endPos.frames(m_document->fps()));
     } else {
         // Move & resize
         item->setPos((int) end.startPos.frames(m_document->fps()), getPositionFromTrack(end.track) + 1);
         item->resizeStart((int) end.startPos.frames(m_document->fps()));
         item->resizeEnd((int) end.endPos.frames(m_document->fps()));
     }
     //item->transitionHandler->moveTransition(GenTime((int) (endPos.x() - startPos.x()), m_document->fps()));
     KdenliveSettings::setSnaptopoints(snap);
     item->updateTransitionEndTrack(getPreviousVideoTrack(end.track));
     m_timeline->transitionHandler->moveTransition(item->transitionTag(), start.track, item->track(), item->transitionEndTrack(), start.startPos, start.endPos, item->startPos(), item->endPos());
     if (m_dragItem && m_dragItem == item) {
         QPoint p;
         ClipItem *transitionClip = getClipItemAtStart(item->startPos(), item->track());
         if (transitionClip && transitionClip->binClip()) {
             int frameWidth = transitionClip->binClip()->getProducerIntProperty(QStringLiteral("meta.media.width"));
             int frameHeight = transitionClip->binClip()->getProducerIntProperty(QStringLiteral("meta.media.height"));
             double factor = transitionClip->binClip()->getProducerProperty(QStringLiteral("aspect_ratio")).toDouble();
             if (factor == 0) {
                 factor = 1.0;
             }
             p.setX((int)(frameWidth * factor + 0.5));
             p.setY(frameHeight);
         }
         emit transitionItemSelected(item, getPreviousVideoTrack(item->track()), p);
     }
     if (refresh) {
         monitorRefresh(QList<ItemInfo>() << start << end, true);
     }
 }
 
 void CustomTrackView::resizeClip(const ItemInfo &start, const ItemInfo &end, bool dontWorry)
 {
     bool resizeClipStart = (start.startPos != end.startPos);
     ClipItem *item = getClipItemAtStart(start.startPos, start.track, start.startPos + start.cropDuration);
     if (!item) {
         if (dontWorry) {
             return;
         }
         emit displayMessage(i18n("Cannot move clip at time: %1 on track %2", m_document->timecode().getTimecodeFromFrames(start.startPos.frames(m_document->fps())), start.track), ErrorMessage);
         //qCDebug(KDENLIVE_LOG) << "----------------  ERROR, CANNOT find clip to resize at... "; // << startPos;
         return;
     }
     if (item->parentItem()) {
         // Item is part of a group, reset group
         resetSelectionGroup();
     }
 
     bool snap = KdenliveSettings::snaptopoints();
     KdenliveSettings::setSnaptopoints(false);
 
     if (resizeClipStart) {
         if (m_timeline->track(start.track)->resize(start.startPos.seconds(), (end.startPos - start.startPos).seconds(), false)) {
             item->resizeStart((int) end.startPos.frames(m_document->fps()));
         } else {
             emit displayMessage(i18n("Resizing clip start failed!!"), ErrorMessage);
         }
     } else {
         if (m_timeline->track(start.track)->resize(start.startPos.seconds(), (end.endPos - start.endPos).seconds(), true)) {
             item->resizeEnd((int) end.endPos.frames(m_document->fps()));
         } else {
             emit displayMessage(i18n("Resizing clip end failed!!"), ErrorMessage);
         }
     }
 
     if (!resizeClipStart && end.cropStart != start.cropStart) {
         //qCDebug(KDENLIVE_LOG) << "// RESIZE CROP, DIFF: " << (end.cropStart - start.cropStart).frames(25);
         ItemInfo clipinfo = end;
         clipinfo.track = end.track;
         bool success = m_document->renderer()->mltResizeClipCrop(clipinfo, end.cropStart);
         if (success) {
             item->setCropStart(end.cropStart);
             item->resetThumbs(true);
         }
     }
     if (item->hasVisibleVideo()) {
         ItemInfo range;
         if (resizeClipStart) {
             if (start.startPos < end.startPos) {
                 range.startPos = start.startPos;
                 range.endPos = end.startPos;
             } else {
                 range.startPos = end.startPos;
                 range.endPos = start.startPos;
             }
         } else {
             if (start.endPos < end.endPos) {
                 range.startPos = start.endPos;
                 range.endPos = end.endPos;
             } else {
                 range.startPos = end.endPos;
                 range.endPos = start.endPos;
             }
         }
         monitorRefresh(range, true);
     }
     if (item == m_dragItem) {
         // clip is selected, update effect stack
         emit clipItemSelected(item);
     }
     KdenliveSettings::setSnaptopoints(snap);
 }
 
 void CustomTrackView::prepareResizeClipStart(AbstractClipItem *item, const ItemInfo &oldInfo, int pos, bool check, QUndoCommand *command)
 {
     if (pos == oldInfo.startPos.frames(m_document->fps())) {
         return;
     }
     bool snap = KdenliveSettings::snaptopoints();
     if (check) {
         KdenliveSettings::setSnaptopoints(false);
         item->resizeStart(pos);
         if (item->startPos().frames(m_document->fps()) != pos) {
             item->resizeStart(oldInfo.startPos.frames(m_document->fps()));
             emit displayMessage(i18n("Not possible to resize"), ErrorMessage);
             KdenliveSettings::setSnaptopoints(snap);
             return;
         }
         KdenliveSettings::setSnaptopoints(snap);
     }
 
     bool hasParentCommand = false;
     if (command) {
         hasParentCommand = true;
     } else {
         command = new QUndoCommand();
         command->setText(i18n("Resize clip start"));
     }
 
     // do this here, too, because otherwise undo won't update the group
     if (item->parentItem() && item->parentItem() != m_selectionGroup) {
         new RebuildGroupCommand(this, item->info().track, item->endPos() - GenTime(1, m_document->fps()), command);
     }
     ItemInfo info = item->info();
     if (item->type() == AVWidget) {
         bool success = m_timeline->track(oldInfo.track)->resize(oldInfo.startPos.seconds(), (item->startPos() - oldInfo.startPos).seconds(), false);
         if (success) {
             // Check if there is an automatic transition on that clip (lower track)
             Transition *transition = getTransitionItemAtStart(oldInfo.startPos, oldInfo.track);
             if (transition && transition->isAutomatic()) {
                 ItemInfo trInfo = transition->info();
                 ItemInfo newTrInfo = trInfo;
                 newTrInfo.startPos = item->startPos();
                 newTrInfo.cropDuration = trInfo.endPos - newTrInfo.startPos;
                 if (newTrInfo.startPos < newTrInfo.endPos) {
                     QDomElement old = transition->toXML();
                     if (transition->updateKeyframes(trInfo, newTrInfo)) {
                         QDomElement xml = transition->toXML();
                         m_timeline->transitionHandler->updateTransition(xml.attribute(QStringLiteral("tag")), xml.attribute(QStringLiteral("tag")), xml.attribute(QStringLiteral("transition_btrack")).toInt(),  xml.attribute(QStringLiteral("transition_atrack")).toInt(), newTrInfo.startPos, newTrInfo.endPos, xml);
                         new EditTransitionCommand(this, transition->track(), transition->startPos(), old, xml, false, command);
                     }
                     new MoveTransitionCommand(this, trInfo, newTrInfo, true, false, command);
                 }
             }
             // Check if there is an automatic transition on that clip (upper track)
             transition = getTransitionItemAtStart(oldInfo.startPos, oldInfo.track + 1);
             if (transition && transition->isAutomatic() && transition->transitionEndTrack() == oldInfo.track) {
                 ItemInfo trInfo = transition->info();
                 ItemInfo newTrInfo = trInfo;
                 newTrInfo.startPos = item->startPos();
                 newTrInfo.cropDuration = trInfo.endPos - newTrInfo.startPos;
                 ClipItem *upperClip = getClipItemAtStart(oldInfo.startPos, oldInfo.track + 1);
                 //TODO
                 if ((!upperClip /*|| !upperClip->baseClip()->isTransparent()*/) && newTrInfo.startPos < newTrInfo.endPos) {
                     QDomElement old = transition->toXML();
                     if (transition->updateKeyframes(trInfo, newTrInfo)) {
                         QDomElement xml = transition->toXML();
                         m_timeline->transitionHandler->updateTransition(xml.attribute(QStringLiteral("tag")), xml.attribute(QStringLiteral("tag")), xml.attribute(QStringLiteral("transition_btrack")).toInt(),  xml.attribute(QStringLiteral("transition_atrack")).toInt(), newTrInfo.startPos, newTrInfo.endPos, xml);
                         new EditTransitionCommand(this, transition->track(), transition->startPos(), old, xml, false, command);
                     }
                     new MoveTransitionCommand(this, trInfo, newTrInfo, true, false, command);
                 }
             }
 
             ClipItem *clip = static_cast < ClipItem * >(item);
 
             // Hack:
             // Since we must always resize clip before updating the keyframes, we
             // put a resize command before & after checking keyframes so that
             // we are sure the resize is performed before whenever we do or undo the action
             // TODO: find a way to apply adjusteffect after the resize command was done / undone
             new ResizeClipCommand(this, oldInfo, info, false, true, command);
             adjustEffects(clip, oldInfo, command);
         } else {
             KdenliveSettings::setSnaptopoints(false);
             item->resizeStart((int) oldInfo.startPos.frames(m_document->fps()));
             KdenliveSettings::setSnaptopoints(snap);
             emit displayMessage(i18n("Error when resizing clip"), ErrorMessage);
         }
     } else if (item->type() == TransitionWidget) {
         Transition *transition = static_cast <Transition *>(item);
         if (!m_timeline->transitionHandler->moveTransition(transition->transitionTag(), oldInfo.track, oldInfo.track, transition->transitionEndTrack(), oldInfo.startPos, oldInfo.endPos, info.startPos, info.endPos)) {
             // Cannot resize transition
             KdenliveSettings::setSnaptopoints(false);
             transition->resizeStart((int) oldInfo.startPos.frames(m_document->fps()));
             KdenliveSettings::setSnaptopoints(snap);
             emit displayMessage(i18n("Cannot resize transition"), ErrorMessage);
         } else {
             QDomElement old = transition->toXML();
             if (transition->updateKeyframes(oldInfo, info)) {
                 QDomElement xml = transition->toXML();
                 m_timeline->transitionHandler->updateTransition(xml.attribute(QStringLiteral("tag")), xml.attribute(QStringLiteral("tag")), xml.attribute(QStringLiteral("transition_btrack")).toInt(), xml.attribute(QStringLiteral("transition_atrack")).toInt(), info.startPos, info.endPos, xml);
                 new EditTransitionCommand(this, transition->track(), transition->startPos(), old, xml, false, command);
             }
             updateTransitionWidget(transition, info);
             new MoveTransitionCommand(this, oldInfo, info, false, true, command);
         }
     }
     if (item->parentItem() && item->parentItem() != m_selectionGroup) {
         new RebuildGroupCommand(this, item->info().track, item->endPos() - GenTime(1, m_document->fps()), command);
     }
 
     if (!hasParentCommand) {
         m_commandStack->push(command);
     }
 }
 
 void CustomTrackView::prepareResizeClipEnd(AbstractClipItem *item, const ItemInfo &oldInfo, int pos, bool check, QUndoCommand *command)
 {
     if (pos == oldInfo.endPos.frames(m_document->fps())) {
         return;
     }
     bool snap = KdenliveSettings::snaptopoints();
     if (check) {
         KdenliveSettings::setSnaptopoints(false);
         item->resizeEnd(pos);
         if (item->endPos().frames(m_document->fps()) != pos) {
             item->resizeEnd(oldInfo.endPos.frames(m_document->fps()));
             emit displayMessage(i18n("Not possible to resize"), ErrorMessage);
             KdenliveSettings::setSnaptopoints(snap);
             return;
         }
         KdenliveSettings::setSnaptopoints(snap);
     }
 
     bool hasParentCommand = false;
     if (command) {
         hasParentCommand = true;
     } else {
         command = new QUndoCommand();
     }
 
     // do this here, too, because otherwise undo won't update the group
     if (item->parentItem() && item->parentItem() != m_selectionGroup) {
         new RebuildGroupCommand(this, item->info().track, item->startPos(), command);
     }
 
     ItemInfo info = item->info();
     if (item->type() == AVWidget) {
         if (!hasParentCommand) {
             command->setText(i18n("Resize clip end"));
         }
         bool success = m_timeline->track(info.track)->resize(oldInfo.startPos.seconds(), (info.endPos - oldInfo.endPos).seconds(), true);
         if (success) {
             // Check if there is an automatic transition on that clip (lower track)
             Transition *tr = getTransitionItemAtEnd(oldInfo.endPos, oldInfo.track);
             if (tr && tr->isAutomatic()) {
                 ItemInfo trInfo = tr->info();
                 ItemInfo newTrInfo = trInfo;
                 newTrInfo.endPos = item->endPos();
                 newTrInfo.cropDuration = newTrInfo.endPos - trInfo.startPos;
                 if (newTrInfo.endPos > newTrInfo.startPos) {
                     QDomElement old = tr->toXML();
                     if (tr->updateKeyframes(trInfo, newTrInfo)) {
                         QDomElement xml = tr->toXML();
                         m_timeline->transitionHandler->updateTransition(xml.attribute(QStringLiteral("tag")), xml.attribute(QStringLiteral("tag")), xml.attribute(QStringLiteral("transition_btrack")).toInt(), xml.attribute(QStringLiteral("transition_atrack")).toInt(), newTrInfo.startPos, newTrInfo.endPos, xml);
                         new EditTransitionCommand(this, tr->track(), tr->startPos(), old, xml, false, command);
                     }
                     new MoveTransitionCommand(this, trInfo, newTrInfo, true, false, command);
                 }
             }
 
             // Check if there is an automatic transition on that clip (upper track)
             tr = getTransitionItemAtEnd(oldInfo.endPos, oldInfo.track - 1);
             if (tr && tr->isAutomatic() && tr->transitionEndTrack() == oldInfo.track) {
                 ItemInfo trInfo = tr->info();
                 ItemInfo newTrInfo = trInfo;
                 newTrInfo.endPos = item->endPos();
                 newTrInfo.cropDuration = newTrInfo.endPos - trInfo.startPos;
                 ClipItem *upperClip = getClipItemAtEnd(oldInfo.endPos, oldInfo.track + 1);
                 //TODO
                 if ((!upperClip /*|| !upperClip->baseClip()->isTransparent()*/) && newTrInfo.endPos > newTrInfo.startPos) {
                     QDomElement old = tr->toXML();
                     if (tr->updateKeyframes(trInfo, newTrInfo)) {
                         QDomElement xml = tr->toXML();
                         m_timeline->transitionHandler->updateTransition(xml.attribute(QStringLiteral("tag")), xml.attribute(QStringLiteral("tag")), xml.attribute(QStringLiteral("transition_btrack")).toInt(), xml.attribute(QStringLiteral("transition_atrack")).toInt(), newTrInfo.startPos, newTrInfo.endPos, xml);
                         new EditTransitionCommand(this, tr->track(), tr->startPos(), old, xml, false, command);
                     }
                     new MoveTransitionCommand(this, trInfo, newTrInfo, true, false, command);
                 }
 
             }
 
             ClipItem *clip = static_cast < ClipItem * >(item);
 
             // Hack:
             // Since we must always resize clip before updating the keyframes, we
             // put a resize command before & after checking keyframes so that
             // we are sure the resize is performed before whenever we do or undo the action
             // TODO: find a way to apply adjusteffect after the resize command was done / undone
             new ResizeClipCommand(this, oldInfo, info, false, true, command);
             adjustEffects(clip, oldInfo, command);
         } else {
             KdenliveSettings::setSnaptopoints(false);
             item->resizeEnd((int) oldInfo.endPos.frames(m_document->fps()));
             KdenliveSettings::setSnaptopoints(true);
             emit displayMessage(i18n("Error when resizing clip"), ErrorMessage);
         }
     } else if (item->type() == TransitionWidget) {
         if (!hasParentCommand) {
             command->setText(i18n("Resize transition end"));
         }
         Transition *transition = static_cast <Transition *>(item);
         if (!m_timeline->transitionHandler->moveTransition(transition->transitionTag(), oldInfo.track, oldInfo.track, transition->transitionEndTrack(), oldInfo.startPos, oldInfo.endPos, info.startPos, info.endPos)) {
             // Cannot resize transition
             KdenliveSettings::setSnaptopoints(false);
             transition->resizeEnd((int) oldInfo.endPos.frames(m_document->fps()));
             KdenliveSettings::setSnaptopoints(true);
             emit displayMessage(i18n("Cannot resize transition"), ErrorMessage);
         } else {
             // Check transition keyframes
             QDomElement old = transition->toXML();
             ItemInfo newInfo = transition->info();
             if (transition->updateKeyframes(oldInfo, newInfo)) {
                 QDomElement xml = transition->toXML();
                 m_timeline->transitionHandler->updateTransition(xml.attribute(QStringLiteral("tag")), xml.attribute(QStringLiteral("tag")), xml.attribute(QStringLiteral("transition_btrack")).toInt(), xml.attribute(QStringLiteral("transition_atrack")).toInt(), transition->startPos(), transition->endPos(), xml);
                 new EditTransitionCommand(this, transition->track(), transition->startPos(), old, xml, false, command);
             }
             updateTransitionWidget(transition, newInfo);
             new MoveTransitionCommand(this, oldInfo, newInfo, false, true, command);
         }
     }
     if (item->parentItem() && item->parentItem() != m_selectionGroup) {
         new RebuildGroupCommand(this, item->info().track, item->startPos(), command);
     }
 
     if (!hasParentCommand) {
         updateTrackDuration(oldInfo.track, command);
         m_commandStack->push(command);
     }
 }
 
 void CustomTrackView::updatePositionEffects(ClipItem *item, const ItemInfo &info, bool standalone)
 {
     int effectPos = item->hasEffect(QStringLiteral("volume"), QStringLiteral("fadein"));
     if (effectPos != -1) {
         QDomElement effect = item->getEffectAtIndex(effectPos);
         int start = item->cropStart().frames(m_document->fps());
         int duration = EffectsList::parameter(effect, QStringLiteral("out")).toInt() - EffectsList::parameter(effect, QStringLiteral("in")).toInt();
         int max = item->cropDuration().frames(m_document->fps());
         if (duration > max) {
             // Make sure the fade effect is not longer than the clip
             duration = max;
         }
         duration += start;
         EffectsList::setParameter(effect, QStringLiteral("in"), QString::number(start));
         EffectsList::setParameter(effect, QStringLiteral("out"), QString::number(duration));
         if (!m_timeline->track(item->track())->editEffect(item->startPos().seconds(), EffectsController::getEffectArgs(m_document->getProfileInfo(), effect), false)) {
             emit displayMessage(i18n("Problem editing effect"), ErrorMessage);
         }
         // if fade effect is displayed, update the effect edit widget with new clip duration
         if (standalone && item->isSelected() && effectPos == item->selectedEffectIndex()) {
             emit clipItemSelected(item);
         }
     }
     effectPos = item->hasEffect(QStringLiteral("brightness"), QStringLiteral("fade_from_black"));
     if (effectPos != -1) {
         QDomElement effect = item->getEffectAtIndex(effectPos);
         int start = item->cropStart().frames(m_document->fps());
         int duration = EffectsList::parameter(effect, QStringLiteral("out")).toInt() - EffectsList::parameter(effect, QStringLiteral("in")).toInt();
         int max = item->cropDuration().frames(m_document->fps());
         if (duration > max) {
             // Make sure the fade effect is not longer than the clip
             duration = max;
         }
         duration += start;
         EffectsList::setParameter(effect, QStringLiteral("in"), QString::number(start));
         EffectsList::setParameter(effect, QStringLiteral("out"), QString::number(duration));
         if (!m_timeline->track(item->track())->editEffect(item->startPos().seconds(), EffectsController::getEffectArgs(m_document->getProfileInfo(), effect), false)) {
             emit displayMessage(i18n("Problem editing effect"), ErrorMessage);
         }
         // if fade effect is displayed, update the effect edit widget with new clip duration
         if (standalone && item->isSelected() && effectPos == item->selectedEffectIndex()) {
             emit clipItemSelected(item);
         }
     }
 
     effectPos = item->hasEffect(QStringLiteral("volume"), QStringLiteral("fadeout"));
     if (effectPos != -1) {
         // there is a fade out effect
         QDomElement effect = item->getEffectAtIndex(effectPos);
         int max = item->cropDuration().frames(m_document->fps());
         int end = max + item->cropStart().frames(m_document->fps()) - 1;
         int duration = EffectsList::parameter(effect, QStringLiteral("out")).toInt() - EffectsList::parameter(effect, QStringLiteral("in")).toInt();
         if (duration > max) {
             // Make sure the fade effect is not longer than the clip
             duration = max;
         }
         int start = end - duration;
         EffectsList::setParameter(effect, QStringLiteral("in"), QString::number(start));
         EffectsList::setParameter(effect, QStringLiteral("out"), QString::number(end));
         if (!m_timeline->track(item->track())->editEffect(item->startPos().seconds(), EffectsController::getEffectArgs(m_document->getProfileInfo(), effect), false)) {
             emit displayMessage(i18n("Problem editing effect"), ErrorMessage);
         }
         // if fade effect is displayed, update the effect edit widget with new clip duration
         if (standalone && item->isSelected() && effectPos == item->selectedEffectIndex()) {
             emit clipItemSelected(item);
         }
     }
 
     effectPos = item->hasEffect(QStringLiteral("brightness"), QStringLiteral("fade_to_black"));
     if (effectPos != -1) {
         QDomElement effect = item->getEffectAtIndex(effectPos);
         int max = item->cropDuration().frames(m_document->fps());
         int end = max + item->cropStart().frames(m_document->fps()) - 1;
         int duration = EffectsList::parameter(effect, QStringLiteral("out")).toInt() - EffectsList::parameter(effect, QStringLiteral("in")).toInt();
         if (duration > max) {
             // Make sure the fade effect is not longer than the clip
             duration = max;
         }
         int start = end - duration;
         EffectsList::setParameter(effect, QStringLiteral("in"), QString::number(start));
         EffectsList::setParameter(effect, QStringLiteral("out"), QString::number(end));
         if (!m_timeline->track(item->track())->editEffect(item->startPos().seconds(), EffectsController::getEffectArgs(m_document->getProfileInfo(), effect), false)) {
             emit displayMessage(i18n("Problem editing effect"), ErrorMessage);
         }
         // if fade effect is displayed, update the effect edit widget with new clip duration
         if (standalone && item->isSelected() && effectPos == item->selectedEffectIndex()) {
             emit clipItemSelected(item);
         }
     }
 
     effectPos = item->hasEffect(QStringLiteral("freeze"), QStringLiteral("freeze"));
     if (effectPos != -1) {
         // Freeze effect needs to be adjusted with clip resize
         int diff = (info.startPos - item->startPos()).frames(m_document->fps());
         QDomElement eff = item->getEffectAtIndex(effectPos);
         if (!eff.isNull() && diff != 0) {
             int freeze_pos = EffectsList::parameter(eff, QStringLiteral("frame")).toInt() + diff;
             EffectsList::setParameter(eff, QStringLiteral("frame"), QString::number(freeze_pos));
             if (standalone && item->isSelected() && item->selectedEffect().attribute(QStringLiteral("id")) == QLatin1String("freeze")) {
                 emit clipItemSelected(item);
             }
         }
     }
 }
 
 double CustomTrackView::getSnapPointForPos(double pos)
 {
     return m_scene->getSnapPointForPos(pos, KdenliveSettings::snaptopoints());
 }
 
 void CustomTrackView::updateSnapPoints(AbstractClipItem *selected, QList<GenTime> offsetList, bool skipSelectedItems)
 {
     QList<GenTime> snaps;
     if (selected && offsetList.isEmpty()) {
         offsetList.append(selected->cropDuration());
     }
     QList<QGraphicsItem *> itemList = items();
     for (int i = 0; i < itemList.count(); ++i) {
         if (itemList.at(i) == selected) {
             continue;
         }
         if (skipSelectedItems && itemList.at(i)->isSelected()) {
             continue;
         }
         if (itemList.at(i)->type() == AVWidget) {
             ClipItem *item = static_cast <ClipItem *>(itemList.at(i));
             if (!item) {
                 continue;
             }
             GenTime start = item->startPos();
             GenTime end = item->endPos();
             if (!snaps.contains(start)) {
                 snaps.append(start);
             }
             if (!snaps.contains(end)) {
                 snaps.append(end);
             }
             if (!offsetList.isEmpty()) {
                 for (int j = 0; j < offsetList.size(); ++j) {
                     GenTime offset = end - offsetList.at(j);
                     if (offset > GenTime()) {
                         if (!snaps.contains(offset)) {
                             snaps.append(offset);
                         }
                         offset = start - offsetList.at(j);
                         if (offset > GenTime() && !snaps.contains(offset)) {
                             snaps.append(offset);
                         }
                     }
                 }
             }
             // Add clip markers
             QList<GenTime> markers;
             ClipController *controller = m_document->getClipController(item->getBinId());
             if (controller) {
                 markers = item->snapMarkers(controller->snapMarkers());
             } else {
                 qWarning("No controller!");
             }
             for (int j = 0; j < markers.size(); ++j) {
                 GenTime t = markers.at(j);
                 if (!snaps.contains(t)) {
                     snaps.append(t);
                 }
                 if (!offsetList.isEmpty()) {
                     for (int k = 0; k < offsetList.size(); ++k) {
                         GenTime offset = t - offsetList.at(k);
                         if (offset > GenTime() && !snaps.contains(offset)) {
                             snaps.append(offset);
                         }
                     }
                 }
             }
         } else if (itemList.at(i)->type() == TransitionWidget) {
             Transition *transition = static_cast <Transition *>(itemList.at(i));
             if (!transition) {
                 continue;
             }
             GenTime start = transition->startPos();
             GenTime end = transition->endPos();
             if (!snaps.contains(start)) {
                 snaps.append(start);
             }
             if (!snaps.contains(end)) {
                 snaps.append(end);
             }
             if (!offsetList.isEmpty()) {
                 for (int j = 0; j < offsetList.size(); ++j) {
                     GenTime offset = end - offsetList.at(j);
                     if (offset > GenTime()) {
                         if (!snaps.contains(offset)) {
                             snaps.append(offset);
                         }
                         offset = start - offsetList.at(j);
                         if (offset > GenTime() && !snaps.contains(offset)) {
                             snaps.append(offset);
                         }
                     }
                 }
             }
         }
     }
 
     // add cursor position
     GenTime pos = GenTime(m_cursorPos, m_document->fps());
     if (!snaps.contains(pos)) {
         snaps.append(pos);
     }
     if (!offsetList.isEmpty()) {
         for (int j = 0; j < offsetList.size(); ++j) {
             GenTime offset = pos - offsetList.at(j);
             if (!snaps.contains(offset)) {
                 snaps.append(offset);
             }
         }
     }
 
     // add guides
     for (int i = 0; i < m_guides.count(); ++i) {
         GenTime cur_pos = m_guides.at(i)->position();
         if (!snaps.contains(cur_pos)) {
             snaps.append(cur_pos);
         }
         if (!offsetList.isEmpty()) {
             for (int j = 0; j < offsetList.size(); ++j) {
                 GenTime offset = cur_pos - offsetList.at(j);
                 if (!snaps.contains(offset)) {
                     snaps.append(offset);
                 }
             }
         }
     }
 
     // add render zone
     QPoint z = m_document->zone();
     pos = GenTime(z.x(), m_document->fps());
     if (!snaps.contains(pos)) {
         snaps.append(pos);
     }
     pos = GenTime(z.y(), m_document->fps());
     if (!snaps.contains(pos)) {
         snaps.append(pos);
     }
 
     qSort(snaps);
     m_scene->setSnapList(snaps);
     //for (int i = 0; i < m_snapPoints.size(); ++i)
     //    //qCDebug(KDENLIVE_LOG) << "SNAP POINT: " << m_snapPoints.at(i).frames(25);
 }
 
 void CustomTrackView::slotSeekToPreviousSnap()
 {
     updateSnapPoints(nullptr);
     seekCursorPos((int) m_scene->previousSnapPoint(GenTime(m_cursorPos, m_document->fps())).frames(m_document->fps()));
     checkScrolling();
 }
 
 void CustomTrackView::slotSeekToNextSnap()
 {
     updateSnapPoints(nullptr);
     seekCursorPos((int) m_scene->nextSnapPoint(GenTime(m_cursorPos, m_document->fps())).frames(m_document->fps()));
     checkScrolling();
 }
 
 void CustomTrackView::clipStart()
 {
     AbstractClipItem *item = getMainActiveClip();
     if (item == nullptr) {
         item = m_dragItem;
     }
     if (item != nullptr) {
         seekCursorPos((int) item->startPos().frames(m_document->fps()));
         checkScrolling();
     }
 }
 
 void CustomTrackView::clipEnd()
 {
     AbstractClipItem *item = getMainActiveClip();
     if (item == nullptr) {
         item = m_dragItem;
     }
     if (item != nullptr) {
         seekCursorPos((int) item->endPos().frames(m_document->fps()) - 1);
         checkScrolling();
     }
 }
 
 int CustomTrackView::hasGuide(double pos, bool framePos)
 {
     for (int i = 0; i < m_guides.count(); ++i) {
         double guidePos = m_guides.at(i)->position().frames(m_document->fps()) * (framePos ? 1 : matrix().m11());
         if (framePos) {
             if (guidePos == pos) {
                 return guidePos;
             }
         } else {
             if (qAbs(guidePos - pos) <= QApplication::startDragDistance()) {
                 return guidePos;
             }
         }
         if (guidePos > pos) {
             return -1;
         }
     }
     return -1;
 }
 
 void CustomTrackView::buildGuidesMenu(QMenu *goMenu) const
 {
     goMenu->clear();
     double fps = m_document->fps();
     for (int i = 0; i < m_guides.count(); ++i) {
         QAction *act = goMenu->addAction(m_guides.at(i)->label() + QLatin1Char('/') + Timecode::getStringTimecode(m_guides.at(i)->position().frames(fps), fps));
         act->setData(m_guides.at(i)->position().frames(m_document->fps()));
     }
     goMenu->setEnabled(!m_guides.isEmpty());
 }
 
 QMap<double, QString> CustomTrackView::guidesData() const
 {
     QMap<double, QString> gData;
     for (int i = 0; i < m_guides.count(); ++i) {
         gData.insert(m_guides.at(i)->position().seconds(), m_guides.at(i)->label());
     }
     return gData;
 }
 
 void CustomTrackView::editGuide(const GenTime &oldPos, const GenTime &pos, const QString &comment)
 {
     if (comment.isEmpty() && pos < GenTime()) {
         // Delete guide
         bool found = false;
         for (int i = 0; i < m_guides.count(); ++i) {
             if (m_guides.at(i)->position() == oldPos) {
                 delete m_guides.takeAt(i);
                 found = true;
                 break;
             }
         }
         if (!found) {
             emit displayMessage(i18n("No guide at cursor time"), ErrorMessage);
         }
     } else if (oldPos >= GenTime()) {
         // move guide
         for (int i = 0; i < m_guides.count(); ++i) {
             if (m_guides.at(i)->position() == oldPos) {
                 Guide *item = m_guides.at(i);
                 item->updateGuide(pos, comment);
                 break;
             }
         }
     } else {
         addGuide(pos, comment);
     }
     qSort(m_guides.begin(), m_guides.end(), sortGuidesList);
     emit guidesUpdated();
 }
 
 bool CustomTrackView::addGuide(const GenTime &pos, const QString &comment, bool loadingProject)
 {
     for (int i = 0; i < m_guides.count(); ++i) {
         if (m_guides.at(i)->position() == pos) {
             emit displayMessage(i18n("A guide already exists at position %1", m_document->timecode().getTimecodeFromFrames(pos.frames(m_document->fps()))), ErrorMessage);
             return false;
         }
     }
     Guide *g = new Guide(this, pos, comment, m_tracksHeight * m_timeline->visibleTracksCount() * matrix().m22());
     scene()->addItem(g);
     m_guides.append(g);
     qSort(m_guides.begin(), m_guides.end(), sortGuidesList);
     if (!loadingProject) {
         emit guidesUpdated();
     }
     return true;
 }
 
 void CustomTrackView::slotAddGuide(bool dialog)
 {
     CommentedTime marker(GenTime(m_cursorPos, m_document->fps()), i18n("Guide"));
     if (dialog) {
         QPointer<MarkerDialog> d = new MarkerDialog(nullptr, marker,
                 m_document->timecode(), i18n("Add Guide"), this);
         if (d->exec() != QDialog::Accepted) {
             delete d;
             return;
         }
         marker = d->newMarker();
         delete d;
     } else {
         marker.setComment(m_document->timecode().getDisplayTimecodeFromFrames(m_cursorPos, false));
     }
     if (addGuide(marker.time(), marker.comment())) {
         EditGuideCommand *command = new EditGuideCommand(this, GenTime(), QString(), marker.time(), marker.comment(), false);
         m_commandStack->push(command);
     }
 }
 
 void CustomTrackView::slotEditGuide(int guidePos, const QString &newText)
 {
     GenTime pos;
     if (guidePos == -1) {
         pos = GenTime(m_cursorPos, m_document->fps());
     } else {
         pos = GenTime(guidePos, m_document->fps());
     }
     bool found = false;
     for (int i = 0; i < m_guides.count(); ++i) {
         if (m_guides.at(i)->position() == pos) {
             CommentedTime guide = m_guides.at(i)->info();
             if (!newText.isEmpty()) {
                 EditGuideCommand *command = new EditGuideCommand(this, guide.time(), guide.comment(), guide.time(), newText, true);
                 m_commandStack->push(command);
             } else {
                 slotEditGuide(guide);
             }
             found = true;
             break;
         }
     }
     if (!found) {
         emit displayMessage(i18n("No guide at cursor time"), ErrorMessage);
     }
 }
 
 void CustomTrackView::slotEditGuide(const CommentedTime &guide)
 {
     QPointer<MarkerDialog> d = new MarkerDialog(nullptr, guide, m_document->timecode(), i18n("Edit Guide"), this);
     if (d->exec() == QDialog::Accepted) {
         EditGuideCommand *command = new EditGuideCommand(this, guide.time(), guide.comment(), d->newMarker().time(), d->newMarker().comment(), true);
         m_commandStack->push(command);
     }
     delete d;
 }
 
 void CustomTrackView::slotEditTimeLineGuide()
 {
     if (m_dragGuide == nullptr) {
         return;
     }
     CommentedTime guide = m_dragGuide->info();
     QPointer<MarkerDialog> d = new MarkerDialog(nullptr, guide,
             m_document->timecode(), i18n("Edit Guide"), this);
     if (d->exec() == QDialog::Accepted) {
         EditGuideCommand *command = new EditGuideCommand(this, guide.time(), guide.comment(), d->newMarker().time(), d->newMarker().comment(), true);
         m_commandStack->push(command);
     }
     delete d;
 }
 
 void CustomTrackView::slotDeleteGuide(int guidePos)
 {
     GenTime pos;
     if (guidePos == -1) {
         pos = GenTime(m_cursorPos, m_document->fps());
     } else {
         pos = GenTime(guidePos, m_document->fps());
     }
     bool found = false;
     for (int i = 0; i < m_guides.count(); ++i) {
         if (m_guides.at(i)->position() == pos) {
             EditGuideCommand *command = new EditGuideCommand(this, m_guides.at(i)->position(), m_guides.at(i)->label(), GenTime(-1), QString(), true);
             m_commandStack->push(command);
             found = true;
             break;
         }
     }
     if (!found) {
         emit displayMessage(i18n("No guide at cursor time"), ErrorMessage);
     }
 }
 
 void CustomTrackView::slotDeleteTimeLineGuide()
 {
     if (m_dragGuide == nullptr) {
         return;
     }
     EditGuideCommand *command = new EditGuideCommand(this, m_dragGuide->position(), m_dragGuide->label(), GenTime(-1), QString(), true);
     m_commandStack->push(command);
 }
 
 void CustomTrackView::slotDeleteAllGuides()
 {
     QUndoCommand *deleteAll = new QUndoCommand();
     deleteAll->setText(QStringLiteral("Delete all guides"));
     for (int i = 0; i < m_guides.count(); ++i) {
         new EditGuideCommand(this, m_guides.at(i)->position(), m_guides.at(i)->label(), GenTime(-1), QString(), true, deleteAll);
     }
     m_commandStack->push(deleteAll);
 }
 
 void CustomTrackView::setTool(ProjectTool tool)
 {
     if (m_tool == tool) {
         return;
     }
     m_tool = tool;
     m_currentToolManager->closeTool();
     switch (m_tool) {
     case RazorTool:
         m_currentToolManager = m_toolManagers.value(AbstractToolManager::RazorType);
         break;
     case SpacerTool:
         m_currentToolManager = m_toolManagers.value(AbstractToolManager::SpacerType);
         break;
     default:
         m_currentToolManager = m_toolManagers.value(AbstractToolManager::SelectType);
     }
     m_currentToolManager->initTool(m_tracksHeight * m_scene->scale().y());
 }
 
 void CustomTrackView::setScale(double scaleFactor, double verticalScale, bool zoomOnMouse)
 {
 
     QMatrix newmatrix;
     int lastMousePos = getMousePos();
     newmatrix = newmatrix.scale(scaleFactor, verticalScale);
     m_scene->isZooming = true;
     m_scene->setScale(scaleFactor, verticalScale);
     removeTipAnimation();
     bool adjust = verticalScale != matrix().m22();
     setMatrix(newmatrix);
     double newHeight = m_tracksHeight * m_timeline->visibleTracksCount() * matrix().m22();
     if (adjust) {
         setSceneRect(0, 0, sceneRect().width(), m_tracksHeight * m_timeline->visibleTracksCount());
         for (int i = 0; i < m_guides.count(); ++i) {
             m_guides.at(i)->setLine(0, 0, 0, newHeight - 1);
         }
     }
     if (scaleFactor < 1.5) {
         m_cursorLine->setFlag(QGraphicsItem::ItemIgnoresTransformations, true);
         QPen p = m_cursorLine->pen();
         QColor c = p.color();
         c.setAlpha(255);
         p.setColor(c);
         m_cursorLine->setPen(p);
         m_cursorOffset = 0;
         m_cursorLine->setLine(0, 0, 0, newHeight - 1);
     } else {
         m_cursorLine->setFlag(QGraphicsItem::ItemIgnoresTransformations, false);
         QPen p = m_cursorLine->pen();
         QColor c = p.color();
         c.setAlpha(100);
         p.setColor(c);
         m_cursorLine->setPen(p);
         m_cursorOffset = 0.5;
         m_cursorLine->setLine(0, 0, 0, m_tracksHeight * m_timeline->visibleTracksCount() - 1);
     }
 
     int diff = sceneRect().width() - m_projectDuration;
     if (diff * newmatrix.m11() < 50) {
         if (newmatrix.m11() < 0.4) {
             setSceneRect(0, 0, (m_projectDuration + 100 / newmatrix.m11()), sceneRect().height());
         } else {
             setSceneRect(0, 0, (m_projectDuration + 300), sceneRect().height());
         }
     }
     double verticalPos = mapToScene(QPoint(0, viewport()->height() / 2)).y();
     if (zoomOnMouse) {
         // Zoom on mouse position
         centerOn(QPointF(lastMousePos, verticalPos));
         int cur_diff = scaleFactor * (getMousePos() - lastMousePos);
         horizontalScrollBar()->setValue(horizontalScrollBar()->value() - cur_diff);
     } else {
         centerOn(QPointF(cursorPos(), verticalPos));
     }
     m_currentToolManager->updateTimelineItems();
     m_scene->isZooming = false;
 }
 
 void CustomTrackView::slotRefreshGuides()
 {
     if (KdenliveSettings::showmarkers()) {
         for (int i = 0; i < m_guides.count(); ++i) {
             m_guides.at(i)->update();
         }
     }
 }
 
 void CustomTrackView::drawBackground(QPainter *painter, const QRectF &rect)
 {
     //TODO: optimize, we currently redraw bg on every cursor move
     painter->setClipRect(rect);
     QPen pen1 = painter->pen();
     QColor lineColor = palette().text().color();
     lineColor.setAlpha(50);
     pen1.setColor(lineColor);
     painter->setPen(pen1);
     double min = rect.left();
     double max = rect.right();
     //painter->drawLine(QPointF(min, 0), QPointF(max, 0));
     int maxTrack = m_timeline->visibleTracksCount();
     QColor audioColor = palette().alternateBase().color();
     QColor activeLockColor = m_lockedTrackColor;
     activeLockColor.setAlpha(90);
     for (int i = 1; i <= maxTrack; ++i) {
         TrackInfo info = m_timeline->getTrackInfo(i);
         if (info.isLocked || info.type == AudioTrack || i == m_selectedTrack) {
             const QRectF track(min, m_tracksHeight * (maxTrack - i), max - min, m_tracksHeight - 1);
             if (i == m_selectedTrack) {
                 painter->fillRect(track, info.isLocked ? activeLockColor : m_selectedTrackColor);
             } else {
                 painter->fillRect(track, info.isLocked ? m_lockedTrackColor : audioColor);
             }
         }
         painter->drawLine(QPointF(min, m_tracksHeight * (maxTrack - i) - 1), QPointF(max, m_tracksHeight * (maxTrack - i) - 1));
     }
     painter->drawLine(QPointF(min, m_tracksHeight * (maxTrack) - 1), QPointF(max, m_tracksHeight * (maxTrack) - 1));
 }
 
 bool CustomTrackView::findString(const QString &text)
 {
     QString marker;
     for (int i = 0; i < m_searchPoints.size(); ++i) {
         marker = m_searchPoints.at(i).comment();
         if (marker.contains(text, Qt::CaseInsensitive)) {
             seekCursorPos(m_searchPoints.at(i).time().frames(m_document->fps()));
             int vert = verticalScrollBar()->value();
             int hor = cursorPos();
             ensureVisible(hor, vert + 10, 2, 2, 50, 0);
             m_findIndex = i;
             return true;
         }
     }
     return false;
 }
 
 void CustomTrackView::selectFound(const QString &track, const QString &pos)
 {
     int hor = m_document->timecode().getFrameCount(pos);
     activateMonitor();
     seekCursorPos(hor);
     slotSelectTrack(track.toInt());
     selectClip(true, false, track.toInt(), hor);
     ensureVisible(hor, verticalScrollBar()->value() + 10, 2, 2, 50, 0);
 }
 
 bool CustomTrackView::findNextString(const QString &text)
 {
     QString marker;
     for (int i = m_findIndex + 1; i < m_searchPoints.size(); ++i) {
         marker = m_searchPoints.at(i).comment();
         if (marker.contains(text, Qt::CaseInsensitive)) {
             seekCursorPos(m_searchPoints.at(i).time().frames(m_document->fps()));
             int vert = verticalScrollBar()->value();
             int hor = cursorPos();
             ensureVisible(hor, vert + 10, 2, 2, 50, 0);
             m_findIndex = i;
             return true;
         }
     }
     m_findIndex = -1;
     return false;
 }
 
 void CustomTrackView::initSearchStrings()
 {
     m_searchPoints.clear();
     QList<QGraphicsItem *> itemList = items();
     for (int i = 0; i < itemList.count(); ++i) {
         // parse all clip names
         if (itemList.at(i)->type() == AVWidget) {
             ClipItem *item = static_cast <ClipItem *>(itemList.at(i));
             GenTime start = item->startPos();
             CommentedTime t(start, item->clipName());
             m_searchPoints.append(t);
             // add all clip markers
             ClipController *controller = m_document->getClipController(item->getBinId());
             QList< CommentedTime > markers = controller->commentedSnapMarkers();
             m_searchPoints += markers;
         }
     }
 
     // add guides
     for (int i = 0; i < m_guides.count(); ++i) {
         m_searchPoints.append(m_guides.at(i)->info());
     }
 
     qSort(m_searchPoints);
 }
 
 void CustomTrackView::clearSearchStrings()
 {
     m_searchPoints.clear();
     m_findIndex = 0;
 }
 
 QList<ItemInfo> CustomTrackView::findId(const QString &clipId)
 {
     QList<ItemInfo> matchingInfo;
     QList<QGraphicsItem *> itemList = items();
     for (int i = 0; i < itemList.count(); ++i) {
         if (itemList.at(i)->type() == AVWidget) {
             ClipItem *item = static_cast<ClipItem *>(itemList.at(i));
             if (item->getBinId() == clipId) {
                 matchingInfo << item->info();
             }
         }
     }
     return matchingInfo;
 }
 
 void CustomTrackView::copyClip()
 {
     qDeleteAll(m_copiedItems);
     m_copiedItems.clear();
     QAction *pasteAction = m_document->getAction(KStandardAction::name(KStandardAction::Paste));
     QList<QGraphicsItem *> itemList = scene()->selectedItems();
     if (itemList.isEmpty()) {
         emit displayMessage(i18n("Select a clip before copying"), ErrorMessage);
         if (pasteAction) {
             pasteAction->setEnabled(false);
         }
         return;
     }
     for (int i = 0; i < itemList.count(); ++i) {
         if (itemList.at(i)->type() == AVWidget) {
             ClipItem *clip = static_cast <ClipItem *>(itemList.at(i));
             ClipItem *clone = clip->clone(clip->info());
             m_copiedItems.append(clone);
         } else if (itemList.at(i)->type() == TransitionWidget) {
             Transition *dup = static_cast <Transition *>(itemList.at(i));
             m_copiedItems.append(dup->clone());
         }
     }
     if (pasteAction) {
         pasteAction->setEnabled(!m_copiedItems.isEmpty());
     }
 }
 
 bool CustomTrackView::canBePastedTo(const ItemInfo &info, int type, const QList<AbstractClipItem *> &excluded) const
 {
     if (m_scene->editMode() != TimelineMode::NormalEdit) {
         // If we are in overwrite mode, always allow the move
         return true;
     }
     int height = m_tracksHeight - 2;
     int offset = 0;
     if (type == TransitionWidget) {
         height = Transition::itemHeight();
         offset = Transition::itemOffset();
     } else if (type == AVWidget) {
         height = ClipItem::itemHeight();
         offset = ClipItem::itemOffset();
     }
     QRectF rect((double) info.startPos.frames(m_document->fps()), (double)(getPositionFromTrack(info.track) + 1 + offset), (double)(info.endPos - info.startPos).frames(m_document->fps()), (double) height);
     QList<QGraphicsItem *> collisions = scene()->items(rect, Qt::IntersectsItemBoundingRect);
     for (int i = 0; i < collisions.count(); ++i) {
         if (collisions.at(i)->type() == type && !excluded.contains((AbstractClipItem *)collisions.at(i))) {
             return false;
         }
     }
     return true;
 }
 
 bool CustomTrackView::canBePastedTo(const QList<ItemInfo> &infoList, int type) const
 {
     QPainterPath path;
     for (int i = 0; i < infoList.count(); ++i) {
         const QRectF rect((double) infoList.at(i).startPos.frames(m_document->fps()), (double)(getPositionFromTrack(infoList.at(i).track) + 1), (double)(infoList.at(i).endPos - infoList.at(i).startPos).frames(m_document->fps()), (double)(m_tracksHeight - 1));
         path.addRect(rect);
     }
     QList<QGraphicsItem *> collisions = scene()->items(path);
     for (int i = 0; i < collisions.count(); ++i) {
         if (collisions.at(i)->type() == type) {
             return false;
         }
     }
     return true;
 }
 
 bool CustomTrackView::canBePasted(const QList<AbstractClipItem *> &items, GenTime offset, int trackOffset, QList<AbstractClipItem *>excluded) const
 {
     excluded << items;
     for (int i = 0; i < items.count(); ++i) {
         ItemInfo info = items.at(i)->info();
         info.startPos += offset;
         info.endPos += offset;
         info.track += trackOffset;
         if (!canBePastedTo(info, items.at(i)->type(), excluded)) {
             return false;
         }
     }
     return true;
 }
 
 void CustomTrackView::pasteClip()
 {
     if (m_copiedItems.isEmpty()) {
         emit displayMessage(i18n("No clip copied"), ErrorMessage);
         return;
     }
     QPoint position;
     int track = -1;
     GenTime pos = GenTime(-1);
     if (m_menuPosition.isNull()) {
         position = mapFromGlobal(QCursor::pos());
         if (!contentsRect().contains(position)) {
             track = m_selectedTrack;
             pos = GenTime(m_cursorPos, m_document->fps());
             /*emit displayMessage(i18n("Cannot paste selected clips"), ErrorMessage);
             return;*/
         }
     } else {
         position = m_menuPosition;
     }
 
     if (pos == GenTime(-1)) {
         pos = GenTime((int)(mapToScene(position).x()), m_document->fps());
     }
     if (track == -1) {
         track = getTrackFromPos(mapToScene(position).y());
     }
 
     GenTime leftPos = m_copiedItems.at(0)->startPos();
     int lowerTrack = m_copiedItems.at(0)->track();
     int upperTrack = m_copiedItems.at(0)->track();
     for (int i = 1; i < m_copiedItems.count(); ++i) {
         if (m_copiedItems.at(i)->startPos() < leftPos) {
             leftPos = m_copiedItems.at(i)->startPos();
         }
         if (m_copiedItems.at(i)->track() < lowerTrack) {
             lowerTrack = m_copiedItems.at(i)->track();
         }
         if (m_copiedItems.at(i)->track() > upperTrack) {
             upperTrack = m_copiedItems.at(i)->track();
         }
     }
 
     GenTime offset = pos - leftPos;
     int trackOffset = track - lowerTrack;
     if (upperTrack + trackOffset > m_timeline->tracksCount() - 1) {
         trackOffset = m_timeline->tracksCount() - 1 - upperTrack;
     }
     if (lowerTrack + trackOffset < 0 || !canBePasted(m_copiedItems, offset, trackOffset)) {
         emit displayMessage(i18n("Cannot paste selected clips"), ErrorMessage);
         return;
     }
     QUndoCommand *pasteClips = new QUndoCommand();
     pasteClips->setText(QStringLiteral("Paste clips"));
     RefreshMonitorCommand *firstRefresh = new RefreshMonitorCommand(this, ItemInfo(), false, true, pasteClips);
     QList<ItemInfo> range;
     for (int i = 0; i < m_copiedItems.count(); ++i) {
         // parse all clip names
         if (m_copiedItems.at(i) && m_copiedItems.at(i)->type() == AVWidget) {
             ClipItem *clip = static_cast <ClipItem *>(m_copiedItems.at(i));
             ItemInfo info = clip->info();
             info.startPos += offset;
             info.endPos += offset;
             info.track += trackOffset;
             if (canBePastedTo(info, AVWidget)) {
                 new AddTimelineClipCommand(this, clip->getBinId(), info, clip->effectList(), clip->clipState(), true, false, false, pasteClips);
                 if (clip->hasVisibleVideo()) {
                     range << info;
                 }
             } else {
                 emit displayMessage(i18n("Cannot paste clip to selected place"), ErrorMessage);
             }
         } else if (m_copiedItems.at(i) && m_copiedItems.at(i)->type() == TransitionWidget) {
             Transition *tr = static_cast <Transition *>(m_copiedItems.at(i));
             ItemInfo info;
             info.startPos = tr->startPos() + offset;
             info.endPos = tr->endPos() + offset;
             info.track = tr->track() + trackOffset;
             int transitionEndTrack;
             if (!tr->forcedTrack()) {
                 transitionEndTrack = getPreviousVideoTrack(info.track);
             } else {
                 transitionEndTrack = tr->transitionEndTrack();
             }
             if (canBePastedTo(info, TransitionWidget)) {
                 if (info.startPos >= info.endPos) {
                     emit displayMessage(i18n("Invalid transition"), ErrorMessage);
                 } else {
                     new AddTransitionCommand(this, info, transitionEndTrack, tr->toXML(), false, true, pasteClips);
                     range << info;
                 }
             } else {
                 emit displayMessage(i18n("Cannot paste transition to selected place"), ErrorMessage);
             }
         }
     }
     updateTrackDuration(-1, pasteClips);
     firstRefresh->updateRange(range);
     new RefreshMonitorCommand(this, range, true, false, pasteClips);
     m_commandStack->push(pasteClips);
 }
 
 void CustomTrackView::pasteClipEffects()
 {
     if (m_copiedItems.count() != 1 || m_copiedItems.at(0)->type() != AVWidget) {
         emit displayMessage(i18n("You must copy exactly one clip before pasting effects"), ErrorMessage);
         return;
     }
     ClipItem *clip = static_cast < ClipItem *>(m_copiedItems.at(0));
 
     QUndoCommand *paste = new QUndoCommand();
     paste->setText(QStringLiteral("Paste effects"));
 
     QList<QGraphicsItem *> clips = scene()->selectedItems();
 
     // expand groups
     for (int i = 0; i < clips.count(); ++i) {
         if (clips.at(i)->type() == GroupWidget) {
             QList<QGraphicsItem *> children = clips.at(i)->childItems();
             for (int j = 0; j < children.count(); ++j) {
                 if (children.at(j)->type() == AVWidget && !clips.contains(children.at(j))) {
                     clips.append(children.at(j));
                 }
             }
         }
     }
 
     for (int i = 0; i < clips.count(); ++i) {
         if (clips.at(i)->type() == AVWidget) {
             ClipItem *item = static_cast < ClipItem *>(clips.at(i));
             for (int j = 0; j < clip->effectsCount(); ++j) {
                 QDomElement eff = clip->effect(j);
                 if (eff.attribute(QStringLiteral("unique"), QStringLiteral("0")) == QLatin1String("0") || item->hasEffect(eff.attribute(QStringLiteral("tag")), eff.attribute(QStringLiteral("id"))) == -1) {
                     adjustKeyfames(clip->cropStart(), item->cropStart(), item->cropDuration(), eff);
                     new AddEffectCommand(this, item->track(), item->startPos(), eff, true, paste);
                 }
             }
         }
     }
     if (paste->childCount() > 0) {
         m_commandStack->push(paste);
     } else {
         delete paste;
     }
 
     //adjust effects (fades, ...)
     for (int i = 0; i < clips.count(); ++i) {
         if (clips.at(i)->type() == AVWidget) {
             ClipItem *item = static_cast < ClipItem *>(clips.at(i));
             updatePositionEffects(item, item->info());
         }
     }
 }
 
 void CustomTrackView::adjustKeyfames(GenTime oldstart, GenTime newstart, GenTime duration, QDomElement xml)
 {
     // parse parameters to check if we need to adjust to the new crop start
     QDomNodeList params = xml.elementsByTagName(QStringLiteral("parameter"));
     for (int i = 0; i < params.count(); ++i) {
         QDomElement e = params.item(i).toElement();
         if (e.isNull()) {
             continue;
         }
         if (e.attribute(QStringLiteral("type")) == QLatin1String("keyframe")
                 || e.attribute(QStringLiteral("type")) == QLatin1String("simplekeyframe")) {
             // Effect has a keyframe type parameter, we need to adjust the values
             QString adjusted = EffectsController::adjustKeyframes(e.attribute(QStringLiteral("keyframes")), oldstart.frames(m_document->fps()), newstart.frames(m_document->fps()), (newstart + duration).frames(m_document->fps()) - 1, m_document->getProfileInfo());
             e.setAttribute(QStringLiteral("keyframes"), adjusted);
         } else if (e.attribute(QStringLiteral("type")) == QLatin1String("animated")) {
             if (xml.attribute(QStringLiteral("kdenlive:sync_in_out")) != QLatin1String("1")) {
                 QString resizedAnim = KeyframeView::cutAnimation(e.attribute(QStringLiteral("value")), 0,  duration.frames(m_document->fps()), duration.frames(m_document->fps()));
                 e.setAttribute(QStringLiteral("value"), resizedAnim);
             } else if (xml.hasAttribute(QStringLiteral("kdenlive:sync_in_out"))) {
                 // Effect attached to clip in, update
                 xml.setAttribute(QStringLiteral("in"), QString::number(newstart.frames(m_document->fps())));
                 xml.setAttribute(QStringLiteral("out"), QString::number((newstart + duration).frames(m_document->fps())));
             }
         }
     }
 }
 
 ClipItem *CustomTrackView::getClipUnderCursor() const
 {
     QRectF rect((double) seekPosition(), 0.0, 1.0, (double)(m_tracksHeight * m_timeline->visibleTracksCount()));
     QList<QGraphicsItem *> collisions = scene()->items(rect, Qt::IntersectsItemBoundingRect);
     if (m_dragItem && !collisions.isEmpty() && collisions.contains(m_dragItem) && m_dragItem->type() == AVWidget && !m_dragItem->isItemLocked()) {
         return static_cast < ClipItem *>(m_dragItem);
     }
     for (int i = 0; i < collisions.count(); ++i) {
         if (collisions.at(i)->type() == AVWidget) {
             ClipItem *clip = static_cast < ClipItem *>(collisions.at(i));
             if (!clip->isItemLocked()) {
                 return clip;
             }
         }
     }
     return nullptr;
 }
 
 const QString CustomTrackView::getClipUnderCursor(int *pos, QPoint *zone) const
 {
     ClipItem *item = static_cast < ClipItem *>(getMainActiveClip());
     if (item == nullptr) {
         if (m_dragItem && m_dragItem->type() == AVWidget) {
             item = static_cast < ClipItem *>(m_dragItem);
         }
     } else {
         *pos = seekPosition() - (item->startPos() - item->cropStart()).frames(m_document->fps());
         if (zone) {
             *zone = QPoint(item->cropStart().frames(m_document->fps()), (item->cropStart() + item->cropDuration()).frames(m_document->fps()));
         }
     }
     QString result;
     if (item) {
         result = item->getBinId();
     }
     return result;
 }
 
 AbstractClipItem *CustomTrackView::getMainActiveClip() const
 {
     QList<QGraphicsItem *> clips = scene()->selectedItems();
     if (clips.isEmpty()) {
         return getClipUnderCursor();
     } else {
         AbstractClipItem *item = nullptr;
         for (int i = 0; i < clips.count(); ++i) {
             if (clips.at(i)->type() == AVWidget) {
                 item = static_cast < AbstractClipItem *>(clips.at(i));
                 if (clips.count() > 1 && item->startPos().frames(m_document->fps()) <= seekPosition() && item->endPos().frames(m_document->fps()) >= seekPosition()) {
                     break;
                 }
             }
         }
         if (item) {
             return item;
         }
     }
     return nullptr;
 }
 
 ClipItem *CustomTrackView::getActiveClipUnderCursor(bool allowOutsideCursor) const
 {
     QList<QGraphicsItem *> clips = scene()->selectedItems();
     if (clips.isEmpty()) {
         return getClipUnderCursor();
     } else {
         ClipItem *item;
         // remove all items in the list that are not clips
         for (int i = 0; i < clips.count();) {
             if (clips.at(i)->type() != AVWidget) {
                 clips.removeAt(i);
             } else {
                 ++i;
             }
         }
         if (clips.count() == 1 && allowOutsideCursor) {
             return static_cast < ClipItem *>(clips.at(0));
         }
         for (int i = 0; i < clips.count(); ++i) {
             if (clips.at(i)->type() == AVWidget) {
                 item = static_cast < ClipItem *>(clips.at(i));
                 if (item->startPos().frames(m_document->fps()) <= seekPosition() && item->endPos().frames(m_document->fps()) >= seekPosition()) {
                     return item;
                 }
             }
         }
     }
     return nullptr;
 }
 
 void CustomTrackView::expandActiveClip()
 {
     AbstractClipItem *item = getActiveClipUnderCursor(true);
     if (item == nullptr || item->type() != AVWidget) {
         emit displayMessage(i18n("You must select one clip for this action"), ErrorMessage);
         return;
     }
     ClipItem *clip = static_cast < ClipItem *>(item);
     const QString url = clip->binClip()->url();
     if (clip->clipType() != Playlist || url.isEmpty()) {
         emit displayMessage(i18n("You must select a playlist clip for this action"), ErrorMessage);
         return;
     }
     // Step 1: remove playlist clip
     QUndoCommand *expandCommand = new QUndoCommand();
     expandCommand->setText(i18n("Expand Clip"));
     ItemInfo info = clip->info();
     new AddTimelineClipCommand(this, clip->getBinId(), info, clip->effectList(), clip->clipState(), true, true, true, expandCommand);
     emit importPlaylistClips(info, url, expandCommand);
 }
 
 void CustomTrackView::setInPoint()
 {
     AbstractClipItem *clip = getActiveClipUnderCursor(true);
     if (clip == nullptr) {
         if (m_dragItem && m_dragItem->type() == TransitionWidget) {
             clip = m_dragItem;
         } else {
             emit displayMessage(i18n("You must select one clip for this action"), ErrorMessage);
             return;
         }
     }
 
     AbstractGroupItem *parent = static_cast <AbstractGroupItem *>(clip->parentItem());
     if (parent) {
         // Resizing a group
         QUndoCommand *resizeCommand = new QUndoCommand();
         resizeCommand->setText(i18n("Resize group"));
         QList<QGraphicsItem *> items = parent->childItems();
         GenTime min = parent->startPos();
         GenTime max = min;
         for (int i = 0; i < items.count(); ++i) {
             AbstractClipItem *item = static_cast<AbstractClipItem *>(items.at(i));
             if (item && item->type() == AVWidget) {
                 ItemInfo info = item->info();
                 prepareResizeClipStart(item, info, seekPosition(), true, resizeCommand);
                 ClipItem *cp = qobject_cast<ClipItem *> (clip);
                 if (cp && cp->hasVisibleVideo()) {
                     min = qMin(min, item->startPos());
                     max = qMax(max, item->startPos());
                 }
             }
         }
         if (resizeCommand->childCount() > 0) {
             m_commandStack->push(resizeCommand);
             if (min < max) {
                 ItemInfo nfo;
                 nfo.startPos = min;
                 nfo.endPos = max;
                 monitorRefresh(nfo, true);
             }
         } else {
             //TODO warn user of failed resize
             delete resizeCommand;
         }
     } else {
         ItemInfo info = clip->info();
         prepareResizeClipStart(clip, info, seekPosition(), true);
         ClipItem *cp = qobject_cast<ClipItem *> (clip);
         if (cp && cp->hasVisibleVideo()) {
             ItemInfo updated = cp->info();
             if (updated.startPos > info.startPos) {
                 updated.endPos = updated.startPos;
                 updated.startPos = info.startPos;
             } else {
                 updated.endPos = info.startPos;
             }
             monitorRefresh(updated, true);
         }
     }
 }
 
 void CustomTrackView::setOutPoint()
 {
     AbstractClipItem *clip = getActiveClipUnderCursor(true);
     if (clip == nullptr) {
         if (m_dragItem && m_dragItem->type() == TransitionWidget) {
             clip = m_dragItem;
         } else {
             emit displayMessage(i18n("You must select one clip for this action"), ErrorMessage);
             return;
         }
     }
     AbstractGroupItem *parent = static_cast <AbstractGroupItem *>(clip->parentItem());
     if (parent) {
         // Resizing a group
         QUndoCommand *resizeCommand = new QUndoCommand();
         resizeCommand->setText(i18n("Resize group"));
         QList<QGraphicsItem *> items = parent->childItems();
         GenTime min = parent->startPos() + parent->duration();
         GenTime max = min;
         for (int i = 0; i < items.count(); ++i) {
             AbstractClipItem *item = static_cast<AbstractClipItem *>(items.at(i));
             if (item && item->type() == AVWidget) {
                 ItemInfo info = item->info();
                 prepareResizeClipEnd(item, info, seekPosition(), true, resizeCommand);
                 ClipItem *cp = qobject_cast<ClipItem *> (item);
                 if (cp && cp->hasVisibleVideo()) {
                     min = qMin(min, item->endPos());
                     max = qMax(max, item->endPos());
                 }
             }
         }
         if (resizeCommand->childCount() > 0) {
             m_commandStack->push(resizeCommand);
             if (min < max) {
                 ItemInfo nfo;
                 nfo.startPos = min;
                 nfo.endPos = max;
                 monitorRefresh(nfo, true);
             }
         } else {
             //TODO warn user of failed resize
             delete resizeCommand;
         }
     } else {
         ItemInfo info = clip->info();
         prepareResizeClipEnd(clip, info, seekPosition(), true);
         ClipItem *cp = qobject_cast<ClipItem *> (clip);
         if (cp && cp->hasVisibleVideo()) {
             ItemInfo updated = cp->info();
             if (updated.endPos > info.endPos) {
                 updated.startPos = info.endPos;
             } else {
                 updated.startPos = updated.endPos;
                 updated.endPos = info.endPos;
             }
             monitorRefresh(updated, true);
         }
     }
 }
 
 void CustomTrackView::slotUpdateAllThumbs()
 {
     if (!isEnabled()) {
         return;
     }
     QList<QGraphicsItem *> itemList = scene()->items();
     //if (itemList.isEmpty()) return;
     ClipItem *item;
     bool ok = false;
     QDir thumbsFolder = m_document->getCacheDir(CacheThumbs, &ok);
     for (int i = 0; i < itemList.count(); ++i) {
         if (itemList.at(i)->type() == AVWidget) {
             item = static_cast <ClipItem *>(itemList.at(i));
             if (item && item->isEnabled() && item->clipType() != Color && item->clipType() != Audio) {
                 // Check if we have a cached thumbnail
                 if (item->clipType() == Image || item->clipType() == Text) {
                     QString thumb = thumbsFolder.absoluteFilePath(item->getBinHash() + QStringLiteral("#0.png"));
                     if (ok && QFile::exists(thumb)) {
                         QPixmap pix(thumb);
                         if (pix.isNull()) {
                             QFile::remove(thumb);
                         }
                         item->slotSetStartThumb(pix);
                     }
                 } else {
                     QString startThumb = thumbsFolder.absoluteFilePath(item->getBinHash() + QLatin1Char('#'));
                     QString endThumb = startThumb;
                     startThumb.append(QString::number((int) item->speedIndependantCropStart().frames(m_document->fps())) + QStringLiteral(".png"));
                     endThumb.append(QString::number((int)(item->speedIndependantCropStart() + item->speedIndependantCropDuration()).frames(m_document->fps()) - 1) + QStringLiteral(".png"));
                     if (QFile::exists(startThumb)) {
                         QPixmap pix(startThumb);
                         if (pix.isNull()) {
                             QFile::remove(startThumb);
                         }
                         item->slotSetStartThumb(pix);
                     }
                     if (QFile::exists(endThumb)) {
                         QPixmap pix(endThumb);
                         if (pix.isNull()) {
                             QFile::remove(endThumb);
                         }
                         item->slotSetEndThumb(pix);
                     }
                 }
                 item->refreshClip(false, false);
             }
         }
     }
     viewport()->update();
 }
 
 void CustomTrackView::saveThumbnails()
 {
     QList<QGraphicsItem *> itemList = scene()->items();
     ClipItem *item;
     bool ok = false;
     QDir thumbsFolder = m_document->getCacheDir(CacheThumbs, &ok);
     for (int i = 0; i < itemList.count(); ++i) {
         if (itemList.at(i)->type() == AVWidget) {
             item = static_cast <ClipItem *>(itemList.at(i));
             if (item->clipType() != Color && item->clipType() != Audio) {
                 // Check if we have a cached thumbnail
                 if (item->clipType() == Image || item->clipType() == Text || item->clipType() == Audio) {
                     QString thumb = thumbsFolder.absoluteFilePath(item->getBinHash() + QStringLiteral("#0.png"));
                     if (!QFile::exists(thumb)) {
                         item->startThumb().save(thumb);
                     }
                 } else {
                     QString startThumb = thumbsFolder.absoluteFilePath(item->getBinHash() + QLatin1Char('#'));
                     QString endThumb = startThumb;
                     startThumb.append(QString::number((int) item->speedIndependantCropStart().frames(m_document->fps())) + QStringLiteral(".png"));
                     endThumb.append(QString::number((int)(item->speedIndependantCropStart() + item->speedIndependantCropDuration()).frames(m_document->fps()) - 1) + QStringLiteral(".png"));
                     if (!QFile::exists(startThumb)) {
                         item->startThumb().save(startThumb);
                     }
                     if (!QFile::exists(endThumb)) {
                         item->endThumb().save(endThumb);
                     }
                 }
             }
         }
     }
 }
 
 void CustomTrackView::slotInsertTrack(int ix)
 {
     QPointer<TrackDialog> d = new TrackDialog(m_timeline, parentWidget());
     d->comboTracks->setCurrentIndex(m_timeline->visibleTracksCount() - ix);
     d->label->setText(i18n("Insert track"));
     QStringList existingTrackNames = m_timeline->getTrackNames();
     int i = 1;
     QString proposedName = i18n("Video %1", i);
     while (existingTrackNames.contains(proposedName)) {
         proposedName = i18n("Video %1", ++i);
     }
     d->track_name->setText(proposedName);
     d->setWindowTitle(i18n("Insert New Track"));
 
     if (d->exec() == QDialog::Accepted) {
         ix = m_timeline->visibleTracksCount() - d->comboTracks->currentIndex();
         if (d->before_select->currentIndex() == 0) {
             ix++;
         }
         TrackInfo info;
         info.duration = 0;
         info.isMute = false;
         info.isLocked = false;
         info.effectsList = EffectsList(true);
         if (d->video_track->isChecked()) {
             info.type = VideoTrack;
             info.isBlind = false;
         } else {
             info.type = AudioTrack;
             info.isBlind = true;
         }
         info.trackName = d->track_name->text();
         AddTrackCommand *addTrack = new AddTrackCommand(this, ix, info, true);
         m_commandStack->push(addTrack);
     }
     delete d;
 }
 
 void CustomTrackView::slotDeleteTrack(int ix)
 {
     if (m_timeline->tracksCount() <= 2) {
         // TODO: warn user that at least one track is necessary
         return;
     }
     QPointer<TrackDialog> d = new TrackDialog(m_timeline, parentWidget());
     d->comboTracks->setCurrentIndex(m_timeline->visibleTracksCount() - ix);
     d->label->setText(i18n("Delete track"));
     d->track_name->setHidden(true);
     d->name_label->setHidden(true);
     d->before_select->setHidden(true);
     d->setWindowTitle(i18n("Delete Track"));
     d->video_track->setHidden(true);
     d->audio_track->setHidden(true);
     if (d->exec() == QDialog::Accepted) {
         ix = m_timeline->visibleTracksCount() - d->comboTracks->currentIndex();
         TrackInfo info = m_timeline->getTrackInfo(ix);
         deleteTimelineTrack(ix, info);
     }
     delete d;
 }
 
 void CustomTrackView::slotConfigTracks(int ix)
 {
     QPointer<TracksConfigDialog> d = new TracksConfigDialog(m_timeline,
             ix, parentWidget());
     if (d->exec() == QDialog::Accepted) {
         configTracks(d->tracksList());
         QList<int> toDelete = d->deletedTracks();
         while (!toDelete.isEmpty()) {
             int track = toDelete.takeLast();
             TrackInfo info = m_timeline->getTrackInfo(track);
             deleteTimelineTrack(track, info);
         }
     }
     delete d;
 }
 
 void CustomTrackView::deleteTimelineTrack(int ix, const TrackInfo &trackinfo)
 {
     if (m_timeline->tracksCount() < 2) {
         return;
     }
     // Clear effect stack
     clearSelection();
     emit transitionItemSelected(nullptr);
     // Make sure the selected track index is not outside range
     m_selectedTrack = qBound(1, m_selectedTrack, m_timeline->tracksCount() - 2);
 
     double startY = getPositionFromTrack(ix) + 1 + m_tracksHeight / 2;
     QRectF r(0, startY, sceneRect().width(), m_tracksHeight / 2 - 1);
     QList<QGraphicsItem *> selection = m_scene->items(r);
     QUndoCommand *deleteTrack = new QUndoCommand();
     deleteTrack->setText(QStringLiteral("Delete track"));
 
     // Remove clips on that track from groups
     QList<QGraphicsItem *> groupsToProceed;
     for (int i = 0; i < selection.count(); ++i) {
         if (selection.at(i)->type() == GroupWidget) {
             if (!groupsToProceed.contains(selection.at(i))) {
                 groupsToProceed << selection.at(i);
             }
         }
     }
     for (int i = 0; i < groupsToProceed.count(); i++) {
         AbstractGroupItem *grp = static_cast<AbstractGroupItem *>(groupsToProceed.at(i));
         QList<QGraphicsItem *> items = grp->childItems();
         QList<ItemInfo> clipGrpInfos;
         QList<ItemInfo> transitionGrpInfos;
         QList<ItemInfo> newClipGrpInfos;
         QList<ItemInfo> newTransitionGrpInfos;
         for (int j = 0; j < items.count(); ++j) {
             if (items.at(j)->type() == AVWidget) {
                 AbstractClipItem *clip = static_cast <AbstractClipItem *>(items.at(j));
                 clipGrpInfos.append(clip->info());
                 if (clip->track() != ix) {
                     newClipGrpInfos.append(clip->info());
                 }
             } else if (items.at(j)->type() == TransitionWidget) {
                 AbstractClipItem *clip = static_cast <AbstractClipItem *>(items.at(j));
                 transitionGrpInfos.append(clip->info());
                 if (clip->track() != ix) {
                     newTransitionGrpInfos.append(clip->info());
                 }
             }
         }
         if (!clipGrpInfos.isEmpty() || !transitionGrpInfos.isEmpty()) {
             // Break group
             new GroupClipsCommand(this, clipGrpInfos, transitionGrpInfos, false, deleteTrack);
             // Rebuild group without clips from track to delete
             if (!newClipGrpInfos.isEmpty() || !newTransitionGrpInfos.isEmpty()) {
                 new GroupClipsCommand(this, newClipGrpInfos, newTransitionGrpInfos, true, true, deleteTrack);
             }
         }
     }
     RefreshMonitorCommand *firstRefresh = new RefreshMonitorCommand(this, ItemInfo(), false, true, deleteTrack);
     // Delete all clips in selected track
     QList<ItemInfo> ranges;
     for (int i = 0; i < selection.count(); ++i) {
         if (selection.at(i)->type() == AVWidget) {
             ClipItem *item =  static_cast <ClipItem *>(selection.at(i));
             ranges << item->info();
             new AddTimelineClipCommand(this, item->getBinId(), item->info(), item->effectList(), item->clipState(), false, true, false, deleteTrack);
             m_scene->removeItem(item);
             delete item;
             item = nullptr;
         } else if (selection.at(i)->type() == TransitionWidget) {
             Transition *item =  static_cast <Transition *>(selection.at(i));
             ranges << item->info();
             new AddTransitionCommand(this, item->info(), item->transitionEndTrack(), item->toXML(), true, false, deleteTrack);
             m_scene->removeItem(item);
             delete item;
             item = nullptr;
         }
     }
     firstRefresh->updateRange(ranges);
     new AddTrackCommand(this, ix, trackinfo, false, deleteTrack);
     new RefreshMonitorCommand(this, ranges, true, false, deleteTrack);
     m_commandStack->push(deleteTrack);
 }
 
 void CustomTrackView::autoTransition()
 {
     QList<QGraphicsItem *> itemList = scene()->selectedItems();
     if (itemList.count() != 1 || itemList.at(0)->type() != TransitionWidget) {
         emit displayMessage(i18n("You must select one transition for this action"), ErrorMessage);
         return;
     }
     Transition *tr = static_cast <Transition *>(itemList.at(0));
     tr->setAutomatic(!tr->isAutomatic());
     QDomElement transition = tr->toXML();
     m_timeline->transitionHandler->updateTransition(transition.attribute(QStringLiteral("tag")), transition.attribute(QStringLiteral("tag")), transition.attribute(QStringLiteral("transition_btrack")).toInt(), transition.attribute(QStringLiteral("transition_atrack")).toInt(), tr->startPos(), tr->endPos(), transition);
     setDocumentModified();
 }
 
 void CustomTrackView::clipNameChanged(const QString &id)
 {
     QList<QGraphicsItem *> list = scene()->items();
     ClipItem *clip = nullptr;
     for (int i = 0; i < list.size(); ++i) {
         if (list.at(i)->type() == AVWidget) {
             clip = static_cast <ClipItem *>(list.at(i));
             if (clip->getBinId() == id) {
                 clip->update();
             }
         }
     }
     //viewport()->update();
 }
 
 void CustomTrackView::getClipAvailableSpace(AbstractClipItem *item, GenTime &minimum, GenTime &maximum)
 {
     minimum = GenTime();
     maximum = GenTime();
     QList<QGraphicsItem *> selection;
     selection = m_scene->items(QRectF(0, getPositionFromTrack(item->track()) + m_tracksHeight / 2, sceneRect().width(), 2));
     selection.removeAll(item);
     for (int i = 0; i < selection.count(); ++i) {
         AbstractClipItem *clip = static_cast <AbstractClipItem *>(selection.at(i));
         if (clip && clip->type() == AVWidget) {
             if (clip->endPos() <= item->startPos() && clip->endPos() > minimum) {
                 minimum = clip->endPos();
             }
             if (clip->startPos() > item->startPos() && (clip->startPos() < maximum || maximum == GenTime())) {
                 maximum = clip->startPos();
             }
         }
     }
 }
 
 void CustomTrackView::getTransitionAvailableSpace(AbstractClipItem *item, GenTime &minimum, GenTime &maximum)
 {
     minimum = GenTime();
     maximum = GenTime();
     QList<QGraphicsItem *> selection;
     selection = m_scene->items(QRectF(0, getPositionFromTrack(item->track()) + m_tracksHeight, sceneRect().width(), 2));
     selection.removeAll(item);
     for (int i = 0; i < selection.count(); ++i) {
         AbstractClipItem *clip = static_cast <AbstractClipItem *>(selection.at(i));
         if (clip && clip->type() == TransitionWidget) {
             if (clip->endPos() <= item->startPos() && clip->endPos() > minimum) {
                 minimum = clip->endPos();
             }
             if (clip->startPos() > item->startPos() && (clip->startPos() < maximum || maximum == GenTime())) {
                 maximum = clip->startPos();
             }
         }
     }
 }
 
 void CustomTrackView::loadGroups(const QDomNodeList &groups)
 {
     for (int i = 0; i < groups.count(); ++i) {
         QDomNodeList children = groups.at(i).childNodes();
         scene()->clearSelection();
         QList<QGraphicsItem *>list;
         for (int nodeindex = 0; nodeindex < children.count(); ++nodeindex) {
             QDomElement elem = children.item(nodeindex).toElement();
             int track = elem.attribute(QStringLiteral("track")).toInt();
             // Ignore items removed after track deletion
             if (track == -1) {
                 continue;
             }
             int pos = elem.attribute(QStringLiteral("position")).toInt();
             if (elem.tagName() == QLatin1String("clipitem")) {
                 ClipItem *clip = getClipItemAtStart(GenTime(pos, m_document->fps()), track);
                 if (clip) {
                     list.append(clip);    //clip->setSelected(true);
                 }
             } else {
                 Transition *clip = getTransitionItemAt(pos, track);
                 if (clip) {
                     list.append(clip);    //clip->setSelected(true);
                 }
             }
         }
         groupSelectedItems(list, true);
     }
 }
 
 void CustomTrackView::splitAudio(bool warn, const ItemInfo &info, int destTrack, QUndoCommand *masterCommand)
 {
     resetSelectionGroup();
     QList<QGraphicsItem *> selection;
     bool hasMasterCommand = masterCommand != nullptr;
     if (!hasMasterCommand) {
         masterCommand = new QUndoCommand();
         masterCommand->setText(i18n("Split audio"));
     }
     if (!info.isValid()) {
         // Operate on current selection
         selection = scene()->selectedItems();
         if (selection.isEmpty()) {
             emit displayMessage(i18n("You must select at least one clip for this action"), ErrorMessage);
             if (!hasMasterCommand) {
                 delete masterCommand;
             }
             return;
         }
         if (KdenliveSettings::splitaudio()) {
             destTrack = m_timeline->audioTarget;
         }
         for (int i = 0; i < selection.count(); ++i) {
             if (selection.at(i)->type() == AVWidget) {
                 ClipItem *clip = static_cast <ClipItem *>(selection.at(i));
                 if (clip->clipType() == AV || clip->clipType() == Playlist) {
                     if (clip->parentItem()) {
                         emit displayMessage(i18n("Cannot split audio of grouped clips"), ErrorMessage);
                     } else {
                         new SplitAudioCommand(this, clip->track(), destTrack, clip->startPos(), masterCommand);
                     }
                 }
             }
         }
     } else {
         new SplitAudioCommand(this, info.track, destTrack, info.startPos, masterCommand);
     }
     if (masterCommand->childCount()) {
         updateTrackDuration(-1, masterCommand);
         if (!hasMasterCommand) {
             m_commandStack->push(masterCommand);
         }
     } else {
         if (warn) {
             emit displayMessage(i18n("No clip to split"), ErrorMessage);
         }
         if (!hasMasterCommand) {
             delete masterCommand;
         }
     }
 }
 
 void CustomTrackView::setAudioAlignReference()
 {
     QList<QGraphicsItem *> selection = scene()->selectedItems();
     if (selection.isEmpty() || selection.size() > 1) {
         emit displayMessage(i18n("You must select exactly one clip for the audio reference."), ErrorMessage);
         return;
     }
     if (m_audioCorrelator != nullptr) {
         delete m_audioCorrelator;
         m_audioCorrelator = nullptr;
         m_audioAlignmentReference = nullptr;
     }
     if (selection.at(0)->type() == AVWidget) {
         ClipItem *clip = static_cast<ClipItem *>(selection.at(0));
         if (clip->clipType() == AV || clip->clipType() == Audio) {
             m_audioAlignmentReference = clip;
             Mlt::Producer *prod = m_timeline->track(clip->track())->clipProducer(m_document->renderer()->getBinProducer(clip->getBinId()), clip->clipState());
             if (!prod) {
                 qCWarning(KDENLIVE_LOG) << "couldn't load producer for clip " << clip->getBinId() << " on track " << clip->track();
                 return;
             }
             AudioEnvelope *envelope = new AudioEnvelope(clip->binClip()->url(), prod);
             m_audioCorrelator = new AudioCorrelation(envelope);
             connect(m_audioCorrelator, &AudioCorrelation::gotAudioAlignData, this, &CustomTrackView::slotAlignClip);
             connect(m_audioCorrelator, &AudioCorrelation::displayMessage, this, &CustomTrackView::displayMessage);
             emit displayMessage(i18n("Processing audio, please wait."), ProcessingJobMessage);
         }
         return;
     }
     emit displayMessage(i18n("Reference for audio alignment must contain audio data."), ErrorMessage);
 }
 
 void CustomTrackView::alignAudio()
 {
     bool referenceOK = true;
     if (m_audioCorrelator == nullptr) {
         referenceOK = false;
     }
     if (referenceOK) {
         if (!scene()->items().contains(m_audioAlignmentReference)) {
             // The reference item has been deleted from the timeline (or so)
             referenceOK = false;
         }
     }
     if (!referenceOK) {
         emit displayMessage(i18n("Audio alignment reference not yet set."), InformationMessage);
         return;
     }
 
     QList<QGraphicsItem *> selection = scene()->selectedItems();
     foreach (QGraphicsItem *item, selection) {
         if (item->type() == AVWidget) {
 
             ClipItem *clip = static_cast<ClipItem *>(item);
             if (clip == m_audioAlignmentReference) {
                 continue;
             }
 
             if (clip->clipType() == AV || clip->clipType() == Audio) {
                 ItemInfo info = clip->info();
                 Mlt::Producer *prod = m_timeline->track(clip->track())->clipProducer(m_document->renderer()->getBinProducer(clip->getBinId()), clip->clipState());
                 if (!prod) {
                     qCWarning(KDENLIVE_LOG) << "couldn't load producer for clip " << clip->getBinId() << " on track " << clip->track();
                     return;
                 }
                 AudioEnvelope *envelope = new AudioEnvelope(clip->binClip()->url(), prod,
                         info.cropStart.frames(m_document->fps()),
                         info.cropDuration.frames(m_document->fps()),
                         clip->track(),
                         info.startPos.frames(m_document->fps()));
                 m_audioCorrelator->addChild(envelope);
             }
         }
     }
     emit displayMessage(i18n("Processing audio, please wait."), ProcessingJobMessage);
 }
 
 void CustomTrackView::slotAlignClip(int track, int pos, int shift)
 {
     QUndoCommand *moveCommand = new QUndoCommand();
     ClipItem *clip = getClipItemAtStart(GenTime(pos, m_document->fps()), track);
     if (!clip) {
         emit displayMessage(i18n("Cannot find clip to align."), ErrorMessage);
         delete moveCommand;
         return;
     }
     GenTime add(shift, m_document->fps());
     ItemInfo start = clip->info();
 
     ItemInfo end = start;
     end.startPos = m_audioAlignmentReference->startPos() + add - m_audioAlignmentReference->cropStart();
     end.endPos = end.startPos + start.cropDuration;
     if (end.startPos < GenTime()) {
         // Clip would start before 0, so crop it first
         GenTime cropBy = -end.startPos;
         if (cropBy > start.cropDuration) {
             delete moveCommand;
             emit displayMessage(i18n("Unable to move clip out of timeline."), ErrorMessage);
             return;
         }
         ItemInfo resized = start;
         resized.startPos += cropBy;
 
         resizeClip(start, resized);
         new ResizeClipCommand(this, start, resized, false, false, moveCommand);
 
         start = clip->info();
         end.startPos += cropBy;
     }
 
     if (itemCollision(clip, end)) {
         delete moveCommand;
         emit displayMessage(i18n("Unable to move clip due to collision."), ErrorMessage);
         return;
     }
     emit displayMessage(i18n("Clip aligned."), OperationCompletedMessage);
     moveCommand->setText(i18n("Auto-align clip"));
     new MoveClipCommand(this, start, end, false, true, moveCommand);
     updateTrackDuration(clip->track(), moveCommand);
     m_commandStack->push(moveCommand);
 
 }
 
 bool CustomTrackView::doSplitAudio(const GenTime &pos, int track, int destTrack, bool split)
 {
     ClipItem *clip = getClipItemAtStart(pos, track);
     if (clip == nullptr) {
         qCDebug(KDENLIVE_LOG) << "// Cannot find clip to split!!!";
         return false;
     }
     EffectsList effects;
     effects.clone(clip->effectList());
     if (split) {
         int start = pos.frames(m_document->fps());
         // do not split audio when we are on an audio track
         if (m_timeline->getTrackInfo(track).type == AudioTrack) {
             return false;
         }
         if (destTrack == -1) {
             destTrack = track - 1;
             for (; destTrack > 0; destTrack--) {
                 TrackInfo info = m_timeline->getTrackInfo(destTrack);
                 if (info.type == AudioTrack && !info.isLocked) {
                     if (sceneEditMode() != TimelineMode::NormalEdit) {
                         break;
                     }
                     int blength = m_timeline->getTrackSpaceLength(destTrack, start, false);
                     if (blength == -1 || blength >= clip->cropDuration().frames(m_document->fps())) {
                         break;
                     }
                 }
             }
         } else {
             // Expanding to target track, check it is not locked
             TrackInfo info = m_timeline->getTrackInfo(destTrack);
             if (info.type != AudioTrack || info.isLocked) {
                 destTrack = 0;
             } else if (sceneEditMode() == TimelineMode::NormalEdit) {
                 int blength = m_timeline->getTrackSpaceLength(destTrack, start, false);
                 if (blength >= 0 && blength < clip->cropDuration().frames(m_document->fps())) {
                     destTrack = 0;
                 }
             }
         }
         if (destTrack == 0) {
             emit displayMessage(i18n("No empty space to put clip audio"), ErrorMessage);
             return false;
         } else {
             ItemInfo info = clip->info();
             info.track = destTrack;
             scene()->clearSelection();
             addClip(clip->getBinId(), info, clip->effectList(), PlaylistState::AudioOnly, false);
             clip->setSelected(true);
             ClipItem *audioClip = getClipItemAtStart(pos, info.track);
             if (audioClip) {
                 if (m_timeline->track(track)->replace(pos.seconds(), m_document->renderer()->getBinVideoProducer(clip->getBinId()))) {
                     clip->setState(PlaylistState::VideoOnly);
                 } else {
                     emit displayMessage(i18n("Cannot update clip (time: %1, track: %2)", pos.frames(m_document->fps()), destTrack), ErrorMessage);
                 }
                 audioClip->setSelected(true);
 
                 // keep video effects, move audio effects to audio clip
                 int videoIx = 0;
                 int audioIx = 0;
                 for (int i = 0; i < effects.count(); ++i) {
                     if (effects.at(i).attribute(QStringLiteral("type")) == QLatin1String("audio")) {
                         deleteEffect(track, pos, clip->effect(videoIx));
                         audioIx++;
                     } else {
                         deleteEffect(destTrack, pos, audioClip->effect(audioIx));
                         videoIx++;
                     }
                 }
                 groupSelectedItems(QList<QGraphicsItem *>() << clip << audioClip, true);
             }
         }
     } else {
         // unsplit clip: remove audio part and change video part to normal clip
         if (clip->parentItem() == nullptr || clip->parentItem()->type() != GroupWidget) {
             //qCDebug(KDENLIVE_LOG) << "//CANNOT FIND CLP GRP";
             return false;
         }
         AbstractGroupItem *grp = static_cast <AbstractGroupItem *>(clip->parentItem());
         QList<QGraphicsItem *> children = grp->childItems();
         if (children.count() != 2) {
             //qCDebug(KDENLIVE_LOG) << "//SOMETHING IS WRONG WITH CLP GRP";
             return false;
         }
         for (int i = 0; i < children.count(); ++i) {
             if (children.at(i) != clip) {
                 ClipItem *clp = static_cast <ClipItem *>(children.at(i));
                 ItemInfo info = clip->info();
                 deleteClip(clp->info());
                 if (!m_timeline->track(info.track)->replace(info.startPos.seconds(), m_document->renderer()->getBinProducer(clip->getBinId()))) {
                     emit displayMessage(i18n("Cannot update clip (time: %1, track: %2)", info.startPos.frames(m_document->fps()), info.track), ErrorMessage);
                     return false;
                 } else {
                     clip->setState(PlaylistState::Original);
                 }
 
                 // re-add audio effects
                 for (int j = 0; j < effects.count(); ++j) {
                     if (effects.at(j).attribute(QStringLiteral("type")) == QLatin1String("audio")) {
                         addEffect(track, pos, effects.at(j));
                     }
                 }
 
                 break;
             }
         }
         clip->setFlag(QGraphicsItem::ItemIsMovable, true);
         m_document->clipManager()->removeGroup(grp);
         if (grp == m_selectionGroup) {
             m_selectionGroup = nullptr;
         }
         scene()->destroyItemGroup(grp);
     }
     return true;
 }
 
 void CustomTrackView::setClipType(PlaylistState::ClipState state)
 {
     QString text = i18n("Audio and Video");
     if (state == PlaylistState::VideoOnly) {
         text = i18n("Video only");
     } else if (state == PlaylistState::AudioOnly) {
         text = i18n("Audio only");
     } else if (state == PlaylistState::Disabled) {
         text = i18n("Disabled");
     }
 
     resetSelectionGroup();
     QList<QGraphicsItem *> selection = scene()->selectedItems();
     if (selection.isEmpty()) {
         emit displayMessage(i18n("You must select one clip for this action"), ErrorMessage);
         return;
     }
     QUndoCommand *videoCommand = new QUndoCommand();
     videoCommand->setText(text);
     for (int i = 0; i < selection.count(); ++i) {
         if (selection.at(i)->type() == AVWidget) {
             ClipItem *clip = static_cast <ClipItem *>(selection.at(i));
             if (clip->clipType() == AV || clip->clipType() == Playlist || clip->clipType() == Audio) {
                 if (clip->parentItem()) {
                     emit displayMessage(i18n("Cannot change grouped clips"), ErrorMessage);
                 } else {
                     new ChangeClipTypeCommand(this, clip->info(), state, clip->clipState(), videoCommand);
                 }
             }
         }
     }
     m_commandStack->push(videoCommand);
 }
 
 void CustomTrackView::disableClip()
 {
     resetSelectionGroup();
     QList<QGraphicsItem *> selection = scene()->selectedItems();
     if (selection.isEmpty()) {
         emit displayMessage(i18n("You must select one clip for this action"), ErrorMessage);
         return;
     }
     QUndoCommand *videoCommand = new QUndoCommand();
     videoCommand->setText(i18n("Disable clip"));
     QList<ItemInfo> range;
     // Expand groups
     for (int i = 0; i < selection.count(); ++i) {
         if (selection.at(i)->type() == GroupWidget) {
             QList<QGraphicsItem *>children = selection.at(i)->childItems();
             foreach (QGraphicsItem *item, children) {
                 if (!selection.contains(item)) {
                     selection << item;
                 }
             }
         } else if (selection.at(i)->parentItem() && !selection.contains(selection.at(i)->parentItem())) {
             QList<QGraphicsItem *>children = selection.at(i)->parentItem()->childItems();
             foreach (QGraphicsItem *item, children) {
                 if (!selection.contains(item)) {
                     selection << item;
                 }
             }
         }
     }
     for (int i = 0; i < selection.count(); ++i) {
         if (selection.at(i)->type() == AVWidget) {
             ClipItem *clip = static_cast <ClipItem *>(selection.at(i));
             ClipType cType = clip->clipType();
             if (cType == AV || cType == Playlist || cType == Audio) {
                 PlaylistState::ClipState currentStatus = clip->clipState();
                 PlaylistState::ClipState newStatus;
                 if (currentStatus == PlaylistState::Disabled) {
                     newStatus = clip->originalState();
                 } else {
                     newStatus = PlaylistState::Disabled;
                 }
                 new ChangeClipTypeCommand(this, clip->info(), newStatus, currentStatus, videoCommand);
                 if (newStatus != PlaylistState::AudioOnly && currentStatus != PlaylistState::AudioOnly && cType != Audio) {
                     range << clip->info();
                 }
             }
         }
     }
     m_commandStack->push(videoCommand);
     monitorRefresh(range, true);
 }
 
 void CustomTrackView::monitorRefresh(const QList<ItemInfo> &range, bool invalidateRange)
 {
     bool refreshMonitor = false;
     for (int i = 0; i < range.count(); i++) {
         if (range.at(i).contains(GenTime(m_cursorPos, m_document->fps()))) {
             refreshMonitor = true;
         }
         if (invalidateRange) {
             m_timeline->invalidateRange(range.at(i));
         }
     }
     if (refreshMonitor) {
         m_document->renderer()->doRefresh();
     }
 }
 
 void CustomTrackView::monitorRefresh(const ItemInfo &range, bool invalidateRange)
 {
     if (range.contains(GenTime(m_cursorPos, m_document->fps()))) {
         m_document->renderer()->doRefresh();
     }
     if (invalidateRange) {
         m_timeline->invalidateRange(range);
     }
 }
 
 void CustomTrackView::monitorRefresh(bool invalidateRange)
 {
     m_document->renderer()->doRefresh();
     if (invalidateRange) {
         m_timeline->invalidateRange();
     }
 }
 
 void CustomTrackView::doChangeClipType(const ItemInfo &info, PlaylistState::ClipState state)
 {
     ClipItem *clip = getClipItemAtStart(info.startPos, info.track);
     if (clip == nullptr) {
         emit displayMessage(i18n("Cannot find clip to edit (time: %1, track: %2)", info.startPos.frames(m_document->fps()), m_timeline->getTrackInfo(info.track).trackName), ErrorMessage);
         return;
     }
     Mlt::Producer *prod;
     double speed = clip->speed();
     PlaylistState::ClipState previousState = clip->clipState();
     if (state == PlaylistState::VideoOnly) {
         prod = m_document->renderer()->getBinVideoProducer(clip->getBinId());
     } else {
         prod = m_document->renderer()->getBinProducer(clip->getBinId());
     }
     if (speed != 1) {
         QLocale locale;
         QString url = prod->get("resource");
         Track::SlowmoInfo slowmoInfo;
         slowmoInfo.speed = speed;
         slowmoInfo.strobe = 1;
         slowmoInfo.state = state;
         Mlt::Producer *copy = m_document->renderer()->getSlowmotionProducer(slowmoInfo.toString(locale) + url);
         if (copy == nullptr) {
             // create mute slowmo producer
             url.prepend(locale.toString(speed) + QLatin1Char(':'));
             Mlt::Properties passProperties;
             Mlt::Properties original(prod->get_properties());
             passProperties.pass_list(original, ClipController::getPassPropertiesList(false));
             copy = m_timeline->track(info.track)->buildSlowMoProducer(passProperties, url, clip->getBinId(), slowmoInfo);
         }
         if (copy == nullptr) {
             // Failed to get slowmo producer, error
             qCDebug(KDENLIVE_LOG) << "Failed to get slowmo producer, error";
             return;
         }
         prod = copy;
     }
     if (prod && prod->is_valid() && m_timeline->track(info.track)->replace(info.startPos.seconds(), prod, state, previousState)) {
         clip->setState(state);
         clip->update();
         if (clip->clipType() != Audio && state != PlaylistState::Disabled && previousState != PlaylistState::Disabled && (previousState == PlaylistState::AudioOnly || state == PlaylistState::AudioOnly)) {
             // Disabled state is handled upstream, so check if we switch to / from an audio state
             monitorRefresh(info, true);
         }
     } else {
         // Changing clip type failed
         emit displayMessage(i18n("Cannot update clip (time: %1, track: %2)", info.startPos.frames(m_document->fps()), m_timeline->getTrackInfo(info.track).trackName), ErrorMessage);
         return;
     }
 }
 
 void CustomTrackView::updateClipTypeActions(ClipItem *clip)
 {
     bool hasAudio;
     bool hasAV;
     if (clip == nullptr) {
         m_clipTypeGroup->setEnabled(false);
         hasAudio = false;
         hasAV = false;
     } else {
         switch (clip->clipType()) {
         case AV:
         case Playlist:
             hasAudio = true;
             hasAV = true;
             m_clipTypeGroup->setEnabled(true);
             break;
         case Audio:
             hasAudio = true;
             hasAV = false;
             m_clipTypeGroup->setEnabled(true);
             break;
         default:
             hasAudio = false;
             hasAV = false;
             m_clipTypeGroup->setEnabled(false);
         }
         QList<QAction *> actions = m_clipTypeGroup->actions();
         for (int i = 0; i < actions.count(); ++i) {
             if (actions.at(i)->data().toInt() == clip->clipState()) {
                 actions.at(i)->setChecked(true);
                 break;
             }
         }
     }
     for (int i = 0; i < m_audioActions.count(); ++i) {
         m_audioActions.at(i)->setEnabled(hasAudio);
     }
     for (int i = 0; i < m_avActions.count(); ++i) {
         m_avActions.at(i)->setEnabled(hasAV);
     }
 }
 
 void CustomTrackView::slotGoToMarker(QAction *action)
 {
     int pos = action->data().toInt();
     seekCursorPos(pos);
 }
 
 void CustomTrackView::reloadTransitionLumas()
 {
     QString lumaNames;
     QString lumaFiles;
     QDomElement lumaTransition = MainWindow::transitions.getEffectByTag(QStringLiteral("luma"), QStringLiteral("luma"));
     QDomNodeList params_list = lumaTransition.elementsByTagName(QStringLiteral("parameter"));
     for (int i = 0; i < params_list.count(); ++i) {
         QDomElement e = params_list.item(i).toElement();
         if (e.attribute(QStringLiteral("tag")) == QLatin1String("resource")) {
             lumaNames = e.attribute(QStringLiteral("paramlistdisplay"));
             lumaFiles = e.attribute(QStringLiteral("paramlist"));
             break;
         }
     }
 
     QList<QGraphicsItem *> itemList = items();
     Transition *transitionitem;
     QDomElement transitionXml;
     for (int i = 0; i < itemList.count(); ++i) {
         if (itemList.at(i)->type() == TransitionWidget) {
             transitionitem = static_cast <Transition *>(itemList.at(i));
             transitionXml = transitionitem->toXML();
             if (transitionXml.attribute(QStringLiteral("id")) == QLatin1String("luma") && transitionXml.attribute(QStringLiteral("tag")) == QLatin1String("luma")) {
                 QDomNodeList params = transitionXml.elementsByTagName(QStringLiteral("parameter"));
                 for (int j = 0; j < params.count(); ++j) {
                     QDomElement e = params.item(j).toElement();
                     if (e.attribute(QStringLiteral("tag")) == QLatin1String("resource")) {
                         e.setAttribute(QStringLiteral("paramlistdisplay"), lumaNames);
                         e.setAttribute(QStringLiteral("paramlist"), lumaFiles);
                         break;
                     }
                 }
             }
             if (transitionXml.attribute(QStringLiteral("id")) == QLatin1String("composite") && transitionXml.attribute(QStringLiteral("tag")) == QLatin1String("composite")) {
                 QDomNodeList params = transitionXml.elementsByTagName(QStringLiteral("parameter"));
                 for (int j = 0; j < params.count(); ++j) {
                     QDomElement e = params.item(j).toElement();
                     if (e.attribute(QStringLiteral("tag")) == QLatin1String("luma")) {
                         e.setAttribute(QStringLiteral("paramlistdisplay"), lumaNames);
                         e.setAttribute(QStringLiteral("paramlist"), lumaFiles);
                         break;
                     }
                 }
             }
         }
     }
     emit transitionItemSelected(nullptr);
 }
 
 double CustomTrackView::fps() const
 {
     return m_document->fps();
 }
 
 void CustomTrackView::updateProjectFps()
 {
     // update all clips to the new fps
     resetSelectionGroup();
     scene()->clearSelection();
     if (m_dragItem) {
         m_dragItem->setMainSelectedClip(false);
     }
     m_dragItem = nullptr;
     QList<QGraphicsItem *> itemList = items();
     for (int i = 0; i < itemList.count(); ++i) {
         // remove all items and re-add them one by one
         if (itemList.at(i) != m_cursorLine && itemList.at(i)->parentItem() == nullptr) {
             m_scene->removeItem(itemList.at(i));
         }
     }
     for (int i = 0; i < itemList.count(); ++i) {
         if (itemList.at(i)->parentItem() == nullptr && (itemList.at(i)->type() == AVWidget || itemList.at(i)->type() == TransitionWidget)) {
             AbstractClipItem *clip = static_cast <AbstractClipItem *>(itemList.at(i));
             clip->updateFps(m_document->fps());
             m_scene->addItem(clip);
         } else if (itemList.at(i)->type() == GroupWidget) {
             AbstractGroupItem *grp = static_cast <AbstractGroupItem *>(itemList.at(i));
             QList<QGraphicsItem *> children = grp->childItems();
             for (int j = 0; j < children.count(); ++j) {
                 if (children.at(j)->type() == AVWidget || children.at(j)->type() == TransitionWidget) {
                     AbstractClipItem *clip = static_cast <AbstractClipItem *>(children.at(j));
                     clip->setFlag(QGraphicsItem::ItemIsMovable, true);
                     clip->updateFps(m_document->fps());
                 }
             }
             m_document->clipManager()->removeGroup(grp);
             m_scene->addItem(grp);
             if (grp == m_selectionGroup) {
                 m_selectionGroup = nullptr;
             }
             scene()->destroyItemGroup(grp);
             scene()->clearSelection();
             /*for (int j = 0; j < children.count(); ++j) {
                 if (children.at(j)->type() == AVWidget || children.at(j)->type() == TRANSITIONWIDGET) {
                     //children.at(j)->setParentItem(0);
                     children.at(j)->setSelected(true);
                 }
             }*/
             groupSelectedItems(children, true);
         } else if (itemList.at(i)->type() == GUIDEITEM) {
             Guide *g = static_cast<Guide *>(itemList.at(i));
             g->updatePos();
             m_scene->addItem(g);
         }
     }
     viewport()->update();
 }
 
 void CustomTrackView::slotTrackDown()
 {
     int ix;
     if (m_selectedTrack > 1) {
         ix = m_selectedTrack - 1;
     } else {
         ix = m_timeline->tracksCount() - 1;
     }
     slotSelectTrack(ix);
 }
 
 void CustomTrackView::slotTrackUp()
 {
     int ix;
     if (m_selectedTrack < m_timeline->tracksCount() - 1) {
         ix = m_selectedTrack + 1;
     } else {
         ix = 1;
     }
     slotSelectTrack(ix);
 }
 
 int CustomTrackView::selectedTrack() const
 {
     return m_selectedTrack;
 }
 
 QStringList CustomTrackView::selectedClips() const
 {
     QStringList clipIds;
     QList<QGraphicsItem *> selection = m_scene->selectedItems();
     for (int i = 0; i < selection.count(); ++i) {
         if (selection.at(i)->type() == AVWidget) {
             ClipItem *item = static_cast<ClipItem *>(selection.at(i));
             clipIds << item->getBinId();
         }
     }
     return clipIds;
 }
 
 void CustomTrackView::slotSelectTrack(int ix, bool switchTarget)
 {
     m_selectedTrack = qBound(1, ix, m_timeline->tracksCount() - 1);
     emit updateTrackHeaders();
     m_timeline->slotShowTrackEffects(ix);
     QRectF rect(mapToScene(QPoint(10, 0)).x(), getPositionFromTrack(ix), 10, m_tracksHeight);
     ensureVisible(rect, 0, 0);
     viewport()->update();
     if (switchTarget) {
         m_timeline->switchTrackTarget();
     }
 }
 
 void CustomTrackView::slotSelectClipsInTrack()
 {
     QRectF rect(0, getPositionFromTrack(m_selectedTrack) + m_tracksHeight / 2, sceneRect().width(), m_tracksHeight / 2 - 1);
     resetSelectionGroup();
     QList<QGraphicsItem *> selection = m_scene->items(rect);
     m_scene->clearSelection();
     QList<QGraphicsItem *> list;
     for (int i = 0; i < selection.count(); ++i) {
         if (selection.at(i)->type() == AVWidget || selection.at(i)->type() == TransitionWidget || selection.at(i)->type() == GroupWidget) {
             list.append(selection.at(i));
         }
     }
     groupSelectedItems(list, false, true);
 }
 
 void CustomTrackView::slotSelectAllClips()
 {
     m_scene->clearSelection();
     resetSelectionGroup();
     QList<QGraphicsItem *> selection = m_scene->items();
     QList<QGraphicsItem *> list;
     for (int i = 0; i < selection.count(); ++i) {
         if (selection.at(i)->parentItem() == nullptr && (selection.at(i)->type() == AVWidget || selection.at(i)->type() == TransitionWidget)) {
             AbstractClipItem *item = static_cast<AbstractClipItem *>(selection.at(i));
             if (!item->isItemLocked()) {
                 list << item;
             }
         } else if (selection.at(i)->type() == GroupWidget) {
             AbstractGroupItem *item = static_cast<AbstractGroupItem *>(selection.at(i));
             if (!item->isItemLocked()) {
                 list << item;
             }
         }
     }
     groupSelectedItems(list, false, true);
 }
 
 void CustomTrackView::selectClip(bool add, bool group, int track, int pos)
 {
     QRectF rect;
     if (track != -1 && pos != -1) {
         rect = QRectF(pos, getPositionFromTrack(track) + m_tracksHeight / 2, 1, 1);
     } else {
         rect = QRectF(m_cursorPos, getPositionFromTrack(m_selectedTrack) + m_tracksHeight / 2, 1, 1);
     }
     QList<QGraphicsItem *> selection = m_scene->items(rect);
     resetSelectionGroup(group);
     if (!group) {
         m_scene->clearSelection();
     }
     for (int i = 0; i < selection.count(); ++i) {
         if (selection.at(i)->type() == AVWidget) {
             selection.at(i)->setSelected(add);
             break;
         }
     }
     if (group) {
         groupSelectedItems();
     }
 }
 
 void CustomTrackView::selectTransition(bool add, bool group)
 {
     QRectF rect(m_cursorPos, getPositionFromTrack(m_selectedTrack) + m_tracksHeight, 1, 1);
     QList<QGraphicsItem *> selection = m_scene->items(rect);
     resetSelectionGroup(group);
     if (!group) {
         m_scene->clearSelection();
     }
     for (int i = 0; i < selection.count(); ++i) {
         if (selection.at(i)->type() == TransitionWidget) {
             selection.at(i)->setSelected(add);
             break;
         }
     }
     if (group) {
         groupSelectedItems();
     }
 }
 
 QStringList CustomTrackView::extractTransitionsLumas()
 {
     QStringList urls;
     QList<QGraphicsItem *> itemList = items();
     Transition *transitionitem;
     QDomElement transitionXml;
     for (int i = 0; i < itemList.count(); ++i) {
         if (itemList.at(i)->type() == TransitionWidget) {
             transitionitem = static_cast <Transition *>(itemList.at(i));
             transitionXml = transitionitem->toXML();
             // luma files in transitions are in "resource" property
             QString luma = EffectsList::parameter(transitionXml, QStringLiteral("resource"));
             if (!luma.isEmpty()) {
                 urls << QUrl::fromLocalFile(luma).toLocalFile();
             }
         }
     }
     urls.removeDuplicates();
     return urls;
 }
 
 void CustomTrackView::setEditMode(TimelineMode::EditMode mode)
 {
     m_scene->setEditMode(mode);
 }
 
 void CustomTrackView::checkTrackSequence(int track)
 {
     QList<int> times = m_document->renderer()->checkTrackSequence(track);
     QRectF rect(0, getPositionFromTrack(track) + m_tracksHeight / 2, sceneRect().width(), 2);
     QList<QGraphicsItem *> selection = m_scene->items(rect);
     QList<int> timelineList;
     timelineList.append(0);
     for (int i = 0; i < selection.count(); ++i) {
         if (selection.at(i)->type() == AVWidget) {
             ClipItem *clip = static_cast <ClipItem *>(selection.at(i));
             int start = clip->startPos().frames(m_document->fps());
             int end = clip->endPos().frames(m_document->fps());
             if (!timelineList.contains(start)) {
                 timelineList.append(start);
             }
             if (!timelineList.contains(end)) {
                 timelineList.append(end);
             }
         }
     }
     qSort(timelineList);
     //qCDebug(KDENLIVE_LOG) << "// COMPARE:\n" << times << '\n' << timelineList << "\n-------------------";
     if (times != timelineList) {
         KMessageBox::sorry(this, i18n("error"), i18n("TRACTOR"));
     }
 }
 
 int CustomTrackView::insertZone(TimelineMode::EditMode sceneMode, const QString &clipId, QPoint binZone)
 {
     bool extractAudio = true;
     bool extractVideo = true;
     ProjectClip *clp = m_document->getBinClip(clipId);
     if (!clp) {
         emit displayMessage(i18n("Select a Bin Clip to perform operation"), ErrorMessage);
         return -1;
     }
     ClipType cType = clp->clipType();
     if (KdenliveSettings::splitaudio()) {
         if (m_timeline->audioTarget == -1 || m_timeline->getTrackInfo(m_timeline->audioTarget).isLocked) {
             extractAudio = false;
         }
         if (cType == Audio || m_timeline->videoTarget == -1 || m_timeline->getTrackInfo(m_timeline->videoTarget).isLocked) {
             extractVideo = false;
         }
     } else if (m_timeline->getTrackInfo(m_selectedTrack).isLocked) {
         // Cannot perform an Extract operation on a locked track
         emit displayMessage(i18n("Cannot perform operation on a locked track"), ErrorMessage);
         return -1;
     }
     if (binZone.isNull()) {
         return -1;
     }
     QPoint timelineZone;
     if (KdenliveSettings::useTimelineZoneToEdit()) {
         timelineZone = m_document->zone();
         timelineZone.setY(timelineZone.y() + 1);
     } else {
         timelineZone.setX(seekPosition());
         timelineZone.setY(-1);
     }
     ItemInfo info;
     int binLength = binZone.y() - binZone.x() + 1;
     int timelineLength = timelineZone.y() - timelineZone.x();
     if (KdenliveSettings::useTimelineZoneToEdit()) {
         if (clp->hasLimitedDuration()) {
             //Make sure insert duration is not longer than clip length
             timelineLength = qMin(timelineLength, (int) clp->duration().frames(m_document->fps()) - binZone.x());
         } else if (timelineLength > clp->duration().frames(m_document->fps())) {
             // Update source clip max length
             clp->setProducerProperty(QStringLiteral("length"), timelineLength + 1);
         }
     }
     info.startPos = GenTime(timelineZone.x(), m_document->fps());
     info.cropStart = GenTime(binZone.x(), m_document->fps());
     info.endPos = info.startPos + GenTime(KdenliveSettings::useTimelineZoneToEdit() ? timelineLength : binLength, m_document->fps());
     info.cropDuration = info.endPos - info.startPos;
     info.track = m_selectedTrack;
     QUndoCommand *addCommand = new QUndoCommand();
     addCommand->setText(i18n("Insert clip"));
     if (sceneMode == TimelineMode::OverwriteEdit) {
         // We clear the selected zone in all non locked tracks
         extractZone(QPoint(timelineZone.x(), info.endPos.frames(m_document->fps())), false, QList<ItemInfo>(), addCommand);
     } else {
         // Cut and move clips forward
         cutTimeline(timelineZone.x(), QList<ItemInfo>(), QList<ItemInfo>(), addCommand);
         new AddSpaceCommand(this, info, QList<ItemInfo>(), true, addCommand);
     }
     if (KdenliveSettings::splitaudio()) {
         if (extractVideo) {
             info.track = m_timeline->videoTarget;
             if (extractAudio) {
                 new AddTimelineClipCommand(this, clipId, info, EffectsList(), PlaylistState::Original, true, false, true, addCommand);
             } else {
                 new AddTimelineClipCommand(this, clipId, info, EffectsList(), PlaylistState::VideoOnly, true, false, true, addCommand);
             }
         } else if (extractAudio) {
             // Extract audio only
             info.track = m_timeline->audioTarget;
             new AddTimelineClipCommand(this, clipId, info, EffectsList(), cType == Audio ? PlaylistState::Original : PlaylistState::AudioOnly, true, false, false, addCommand);
         } else {
             emit displayMessage(i18n("No target track(s) selected"), InformationMessage);
         }
     } else {
         new AddTimelineClipCommand(this, clipId, info, EffectsList(), PlaylistState::Original, true, false, true, addCommand);
     }
     // Automatic audio split
     if (KdenliveSettings::splitaudio() && extractVideo && extractAudio) {
         if (!m_timeline->getTrackInfo(m_timeline->audioTarget).isLocked && clp->isSplittable()) {
             splitAudio(false, info, m_timeline->audioTarget, addCommand);
         }
     }
     updateTrackDuration(info.track, addCommand);
     m_commandStack->push(addCommand);
     selectClip(true, false, m_selectedTrack, timelineZone.x());
     return info.endPos.frames(m_document->fps());
 }
 
 void CustomTrackView::clearSelection(bool emitInfo)
 {
     if (m_dragItem) {
         m_dragItem->setSelected(false);
     }
     resetSelectionGroup();
     scene()->clearSelection();
     if (m_dragItem) {
         m_dragItem->setMainSelectedClip(false);
     }
     m_dragItem = nullptr;
     if (emitInfo) {
         emit clipItemSelected(nullptr);
         emit transitionItemSelected(nullptr);
     }
 }
 
 void CustomTrackView::updatePalette()
 {
     if (m_cursorLine) {
         QPen pen1 = m_cursorLine->pen();
         QColor line(palette().text().color());
         line.setAlpha(pen1.color().alpha());
         pen1.setColor(line);
         m_cursorLine->setPen(pen1);
     }
     QIcon razorIcon = KoIconUtils::themedIcon(QStringLiteral("edit-cut"));
     m_razorCursor = QCursor(razorIcon.pixmap(32, 32));
     KColorScheme scheme(palette().currentColorGroup(), KColorScheme::Window, KSharedConfig::openConfig(KdenliveSettings::colortheme()));
     m_selectedTrackColor = scheme.background(KColorScheme::ActiveBackground).color();
     m_selectedTrackColor.setAlpha(150);
     m_lockedTrackColor = scheme.background(KColorScheme::NegativeBackground).color();
     m_lockedTrackColor.setAlpha(150);
 }
 
 void CustomTrackView::removeTipAnimation()
 {
     if (m_visualTip) {
         scene()->removeItem(m_visualTip);
         m_keyPropertiesTimer->stop();
         delete m_keyProperties;
         m_keyProperties = nullptr;
         delete m_visualTip;
         m_visualTip = nullptr;
     }
 }
 
 bool CustomTrackView::hasAudio(int track) const
 {
     QRectF rect(0, (double)(getPositionFromTrack(track) + 1), (double) sceneRect().width(), (double)(m_tracksHeight - 1));
     QList<QGraphicsItem *> collisions = scene()->items(rect, Qt::IntersectsItemBoundingRect);
     for (int i = 0; i < collisions.count(); ++i) {
         QGraphicsItem *item = collisions.at(i);
         if (!item->isEnabled()) {
             continue;
         }
         if (item->type() == AVWidget) {
             ClipItem *clip = static_cast <ClipItem *>(item);
             if (clip->clipState() != PlaylistState::VideoOnly && (clip->clipType() == Audio || clip->clipType() == AV || clip->clipType() == Playlist)) {
                 return true;
             }
         }
     }
     return false;
 }
 
 void CustomTrackView::slotAddTrackEffect(const QDomElement &effect, int ix)
 {
     EffectsController::initTrackEffect(m_document->getProfileInfo(), effect);
     QUndoCommand *effectCommand = new QUndoCommand();
     QString effectName;
     if (effect.tagName() == QLatin1String("effectgroup")) {
         effectName = effect.attribute(QStringLiteral("name"));
     } else {
         QDomElement namenode = effect.firstChildElement(QStringLiteral("name"));
         if (!namenode.isNull()) {
             effectName = i18n(namenode.text().toUtf8().data());
         } else {
             effectName = i18n("effect");
         }
     }
     effectCommand->setText(i18n("Add %1", effectName));
     if (effect.tagName() == QLatin1String("effectgroup")) {
         QDomNodeList effectlist = effect.elementsByTagName(QStringLiteral("effect"));
         for (int j = 0; j < effectlist.count(); ++j) {
             QDomElement trackeffect = effectlist.at(j).toElement();
             if (trackeffect.attribute(QStringLiteral("unique"), QStringLiteral("0")) != QLatin1String("0") && m_timeline->hasTrackEffect(ix, trackeffect.attribute(QStringLiteral("tag")), trackeffect.attribute(QStringLiteral("id"))) != -1) {
                 emit displayMessage(i18n("Effect already present in track"), ErrorMessage);
                 continue;
             }
             new AddEffectCommand(this, ix, GenTime(-1), trackeffect, true, effectCommand);
         }
     } else {
         if (effect.attribute(QStringLiteral("unique"), QStringLiteral("0")) != QLatin1String("0") && m_timeline->hasTrackEffect(ix, effect.attribute(QStringLiteral("tag")), effect.attribute(QStringLiteral("id"))) != -1) {
             emit displayMessage(i18n("Effect already present in track"), ErrorMessage);
             delete effectCommand;
             return;
         }
         new AddEffectCommand(this, ix, GenTime(-1), effect, true, effectCommand);
     }
 
     if (effectCommand->childCount() > 0) {
         m_commandStack->push(effectCommand);
     } else {
         delete effectCommand;
     }
 }
 
 void CustomTrackView::updateTrackDuration(int track, QUndoCommand *command)
 {
     Q_UNUSED(command)
 
     QList<int> tracks;
     if (track >= 0) {
         tracks << track;
     } else {
         // negative track number -> update all tracks
         for (int i = 1; i < m_timeline->tracksCount(); ++i) {
             tracks << i;
         }
     }
     /*for (int i = 0; i < tracks.count(); ++i) {
         int t = tracks.at(i);
         // t + 1 because of black background track
         int duration = m_document->renderer()->mltTrackDuration(t + 1);
         if (duration != m_document->trackDuration(t)) {
             m_document->setTrackDuration(t, duration);
 
             // update effects
             EffectsList effects = m_document->getTrackEffects(t);
             for (int j = 0; j < effects.count(); ++j) {
                 // TODO
                  // - lookout for keyframable parameters and update them so all keyframes are in the new range (0 - duration)
                  // - update the effectstack if necessary
                  //
             }
         }
     }*/
 }
 
 void CustomTrackView::adjustEffects(ClipItem *item, const ItemInfo &oldInfo, QUndoCommand *command)
 {
     QMap<int, QDomElement> effects = item->adjustEffectsToDuration(oldInfo);
     if (!effects.isEmpty()) {
         QMap<int, QDomElement>::const_iterator i = effects.constBegin();
         while (i != effects.constEnd()) {
             new EditEffectCommand(this, item->track(), item->startPos(), i.value(), item->effect(i.key()), i.value().attribute(QStringLiteral("kdenlive_ix")).toInt(), true, true, false, command);
             ++i;
         }
     }
 }
 
 void CustomTrackView::slotGotFilterJobResults(const QString &/*id*/, int startPos, int track, const stringMap &filterParams, const stringMap &extra)
 {
     ClipItem *clip = getClipItemAtStart(GenTime(startPos, m_document->fps()), track);
     if (clip == nullptr) {
         emit displayMessage(i18n("Cannot find clip for effect update %1.", extra.value("finalfilter")), ErrorMessage);
         return;
     }
     QDomElement newEffect;
     QDomElement effect = clip->effectAtIndex(clip->selectedEffectIndex());
     if (effect.attribute(QStringLiteral("id")) == extra.value(QStringLiteral("finalfilter"))) {
         newEffect = effect.cloneNode().toElement();
         QMap<QString, QString>::const_iterator i = filterParams.constBegin();
         while (i != filterParams.constEnd()) {
             EffectsList::setParameter(newEffect, i.key(), i.value());
             ++i;
         }
         EditEffectCommand *command = new EditEffectCommand(this, clip->track(), clip->startPos(), effect, newEffect, clip->selectedEffectIndex(), true, true, true);
         m_commandStack->push(command);
         emit clipItemSelected(clip);
     } else {
         emit displayMessage(i18n("Cannot find effect to update %1.", extra.value("finalfilter")), ErrorMessage);
     }
 }
 
 void CustomTrackView::slotImportClipKeyframes(GraphicsRectItem type, const ItemInfo &info, const QDomElement &xml, QMap<QString, QString> keyframes)
 {
     ClipItem *item = nullptr;
     ItemInfo srcInfo;
     if (keyframes.isEmpty()) {
         if (type == TransitionWidget) {
             // We want to import keyframes to a transition
             if (!m_selectionGroup) {
                 emit displayMessage(i18n("You need to select one clip and one transition"), ErrorMessage);
                 return;
             }
             // Make sure there is no collision
             QList<QGraphicsItem *> children = m_selectionGroup->childItems();
             for (int i = 0; i < children.count(); ++i) {
                 if (children.at(i)->type() == AVWidget) {
                     item = static_cast<ClipItem *>(children.at(i));
                     srcInfo = item->info();
                     break;
                 }
             }
         } else {
             // Import keyframes from current clip to its effect
             if (m_dragItem && m_dragItem->type() == AVWidget) {
                 item = static_cast<ClipItem *>(m_dragItem);
             }
         }
         if (!item) {
             emit displayMessage(i18n("No clip found"), ErrorMessage);
             return;
         }
         keyframes = item->binClip()->analysisData();
     }
     if (keyframes.isEmpty()) {
         emit displayMessage(i18n("No keyframe data found in clip"), ErrorMessage);
         return;
     }
     QPointer<KeyframeImport>import = new KeyframeImport(srcInfo, info, keyframes, m_document->timecode(), xml, m_document->getProfileInfo(), this);
     if (import->exec() != QDialog::Accepted) {
         delete import;
         return;
     }
     QString keyframeData = import->selectedData();
     QString tag = import->selectedTarget();
     emit importKeyframes(type, tag, keyframeData);
     delete import;
 }
 
 void CustomTrackView::slotReplaceTimelineProducer(const QString &id)
 {
     Mlt::Producer *prod = m_document->renderer()->getBinProducer(id);
+    if (!prod) {
+        qDebug()<<"* ** ERROR, CANNOT FIND BIN CLIP : "<<id;
+        return;
+    }
     Mlt::Producer *videoProd = m_document->renderer()->getBinVideoProducer(id);
     QList<Track::SlowmoInfo> allSlows;
     for (int i = 1; i < m_timeline->tracksCount(); i++) {
         allSlows << m_timeline->track(i)->getSlowmotionInfos(id);
     }
     QLocale locale;
     QString url = prod->get("resource");
     // generate all required slowmo producers
     QStringList processedUrls;
     QMap<QString, Mlt::Producer *> newSlowMos;
     for (int i = 0; i < allSlows.count(); i++) {
         // find out speed and strobe values
         Track::SlowmoInfo info = allSlows.at(i);
         QString wrapUrl = QStringLiteral("timewarp:") + locale.toString(info.speed) + QLatin1Char(':') + url;
         // build slowmo producer
         if (processedUrls.contains(wrapUrl)) {
             continue;
         }
         processedUrls << wrapUrl;
         Mlt::Producer *slowProd = new Mlt::Producer(*prod->profile(), nullptr, wrapUrl.toUtf8().constData());
         if (!slowProd->is_valid()) {
             qCDebug(KDENLIVE_LOG) << "++++ FAILED TO CREATE SLOWMO PROD";
             continue;
         }
         //if (strobe > 1) slowProd->set("strobe", strobe);
         QString producerid = QStringLiteral("slowmotion:") + id + QLatin1Char(':') + info.toString(locale);
         slowProd->set("id", producerid.toUtf8().constData());
         newSlowMos.insert(info.toString(locale), slowProd);
     }
     QList<ItemInfo> toUpdate;
     for (int i = 1; i < m_timeline->tracksCount(); i++) {
         toUpdate << m_timeline->track(i)->replaceAll(id,  prod, videoProd, newSlowMos);
     }
 
     // update slowmotion storage
     QMapIterator<QString, Mlt::Producer *> i(newSlowMos);
     while (i.hasNext()) {
         i.next();
         Mlt::Producer *sprod = i.value();
         m_document->renderer()->storeSlowmotionProducer(i.key() + url, sprod, true);
     }
     if (!toUpdate.isEmpty()) {
         QMetaObject::invokeMethod(this, "monitorRefresh", Qt::QueuedConnection, Q_ARG(QList <ItemInfo>, toUpdate), Q_ARG(bool, true));
     }
     m_timeline->refreshTractor();
 }
 
 void CustomTrackView::slotPrepareTimelineReplacement(const QString &id)
 {
     for (int i = 1; i < m_timeline->tracksCount(); i++) {
         m_timeline->track(i)->replaceId(id);
     }
 }
 
 void CustomTrackView::slotUpdateTimelineProducer(const QString &id)
 {
     Mlt::Producer *prod = m_document->renderer()->getBinProducer(id);
     for (int i = 1; i < m_timeline->tracksCount(); i++) {
         m_timeline->track(i)->updateEffects(id,  prod);
     }
 }
 
 bool CustomTrackView::hasSelection() const
 {
     return (m_selectionGroup || m_dragItem);
 }
 
 void CustomTrackView::exportTimelineSelection(QString path)
 {
     if (!m_selectionGroup && !m_dragItem) {
         qCDebug(KDENLIVE_LOG) << "/// ARGH, NO SELECTION GRP";
         emit displayMessage(i18n("No clips and transitions selected in timeline for exporting."), ErrorMessage);
         return;
     }
     if (path.isEmpty()) {
         QString clipFolder = KRecentDirs::dir(QStringLiteral(":KdenliveClipFolder"));
         if (clipFolder.isEmpty()) {
             clipFolder = QDir::homePath();
         }
         path = QFileDialog::getSaveFileName(this, i18n("Save Timeline Selection"), clipFolder, i18n("MLT playlist (*.mlt)"));
         if (path.isEmpty()) {
             return;
         }
     }
     QList<QGraphicsItem *> children;
     QRectF bounding;
     if (m_selectionGroup) {
         children = m_selectionGroup->childItems();
         bounding = m_selectionGroup->sceneBoundingRect();
     } else {
         // only one clip selected
         children << m_dragItem;
         bounding = m_dragItem->sceneBoundingRect();
     }
     int firstTrack = getTrackFromPos(bounding.bottom());
     int lastTrack = getTrackFromPos(bounding.top());
     // Build export playlist
     Mlt::Tractor *newTractor = new Mlt::Tractor(*(m_document->renderer()->getProducer()->profile()));
     Mlt::Field *field = newTractor->field();
     for (int i = firstTrack; i <= lastTrack; i++) {
         QScopedPointer<Mlt::Playlist> newTrackPlaylist(new Mlt::Playlist(*newTractor->profile()));
         newTractor->set_track(*newTrackPlaylist, i - firstTrack);
     }
     int startOffest = m_projectDuration;
     // Find first frame of selection
     for (int i = 0; i < children.count(); ++i) {
         QGraphicsItem *item = children.at(i);
         if (item->type() != TransitionWidget && item->type() != AVWidget) {
             continue;
         }
         AbstractClipItem *it = static_cast<AbstractClipItem *>(item);
         if (!it) {
             continue;
         }
         int pos = it->startPos().frames(m_document->fps());
         if (pos < startOffest) {
             startOffest = pos;
         }
     }
     for (int i = 0; i < children.count(); ++i) {
         QGraphicsItem *item = children.at(i);
         if (item->type() == AVWidget) {
             ClipItem *clip = static_cast<ClipItem *>(item);
             int track = clip->track() - firstTrack;
             m_timeline->duplicateClipOnPlaylist(clip->track(), clip->startPos().seconds(), startOffest, newTractor->track(track));
         } else if (item->type() == TransitionWidget) {
             Transition *tr = static_cast<Transition *>(item);
             int a_track = qBound(0, tr->transitionEndTrack() - firstTrack, lastTrack - firstTrack + 1);
             int b_track = qBound(0, tr->track() - firstTrack, lastTrack - firstTrack + 1);
             m_timeline->transitionHandler->duplicateTransitionOnPlaylist(tr->startPos().frames(m_document->fps()) - startOffest, tr->endPos().frames(m_document->fps()) - startOffest, tr->transitionTag(), tr->toXML(), a_track, b_track, field);
         }
     }
     Mlt::Consumer xmlConsumer(*newTractor->profile(), ("xml:" + path).toUtf8().constData());
     xmlConsumer.set("terminate_on_pause", 1);
     xmlConsumer.connect(*newTractor);
     xmlConsumer.run();
     delete newTractor;
 }
 
 int CustomTrackView::getTrackFromPos(double y) const
 {
     int totalTracks = m_timeline->tracksCount() - 1;
     return qMax(1, totalTracks - ((int)(y / m_tracksHeight)));
 }
 
 int CustomTrackView::getPositionFromTrack(int track) const
 {
     int totalTracks = m_timeline->tracksCount() - 1;
     return m_tracksHeight * (totalTracks - track);
 }
 
 void CustomTrackView::importPlaylist(const ItemInfo &info, const QMap<QString, QString> &idMap, const QDomDocument &doc, QUndoCommand *command)
 {
     Mlt::Producer *import = new Mlt::Producer(*m_document->renderer()->getProducer()->profile(), "xml-string", doc.toString().toUtf8().constData());
     if (!import || !import->is_valid()) {
         delete command;
         qCDebug(KDENLIVE_LOG) << " / / /CANNOT open playlist to import ";
         emit displayMessage(i18n("Malformed playlist clip: invalid content."), MltError);
         return;
     }
     Mlt::Service service(import->parent().get_service());
     if (service.type() != tractor_type) {
         delete command;
         qCDebug(KDENLIVE_LOG) << " / / /CANNOT playlist file: " << service.type();
         emit displayMessage(i18n("Malformed playlist clip: missing tractor."), MltError);
         return;
     }
 
     // Parse imported file
     Mlt::Tractor tractor(service);
     int playlistTracks = tractor.count();
     // (In)sanity check... ;)
     if (playlistTracks < 1) {
         delete command;
         emit displayMessage(i18n("Malformed playlist clip: no tracks."), MltError);
         return;
     }
     // Expansion of a playlist clip is "down": that is, a multi-track playlist
     // occupies the tracks at and below the track where the playlist clip is.
     // This is in line with how Kdenlive traditionally handles tracks, from
     // top to bottom. Remember that the bottommost *user* timeline track has index 1!
     int topTrack = info.track;
     int bottomTrack = topTrack - playlistTracks + 1;
     if (bottomTrack < 1) {
         // playlist clip would expand below the timeline, so try to
         // shift the playlist clip up onto a higher track. If there is
         // room to do so, that is...
         // Remember that timeline tracksCount() is the number of timeline tractor
         // tracks, so this includes the black track with index 0. Or we just use
         // visibleTracksCount() then :)
         if (playlistTracks > m_timeline->visibleTracksCount()) {
             // There are not enough tracks in the timeline.
             qCWarning(KDENLIVE_LOG) << " / / / more playlist tracks than timeline tracks";
             delete command;
             emit displayMessage(i18n("Selected playlist clip needs more tracks (%1) than there are tracks in the timeline (%2).",
                                      playlistTracks, m_timeline->visibleTracksCount()), MltError);
             return;
         }
         topTrack = playlistTracks;
         bottomTrack = 1;
     }
     // Check if there are no objects on the way: the expansion direction
     // for multi-track playlists is "down", that is, we occupy additional tracks
     // *below* the playlist clip in the timeline.
     double startY = getPositionFromTrack(topTrack) + 1; // TODO: check +1
     QRectF r(info.startPos.frames(m_document->fps()), startY, (info.endPos - info.startPos).frames(m_document->fps()), m_tracksHeight * playlistTracks);
     QList<QGraphicsItem *> selection = m_scene->items(r);
     ClipItem *playlistToExpand = getClipItemAtStart(info.startPos, info.track);
     if (playlistToExpand) {
         selection.removeAll(playlistToExpand);
     }
     for (int i = 0; i < selection.count(); ++i) {
         QGraphicsItem *item = selection.at(i);
         if (item->type() == TransitionWidget || item->type() == AVWidget) {
             if (item->type() == TransitionWidget) {
                 // We allow transitions immediately above the playlist clip (top track)
                 // to overlap with the playlist clip and don't regard this as a collision.
                 // The rationale is that any playlist clip cannot have a transition above
                 // its topmost track, so this is never going to be a collision. Au contraire,
                 // this improves some workflows incredibly, so we can now place playlist
                 // clips immediately below a higher track with some overlay logo.
                 Transition *tr = static_cast <Transition *>(item);
                 if (tr->track() > topTrack) {
                     continue;
                 }
             }
             qCWarning(KDENLIVE_LOG) << " / / /There are clips in timeline preventing expand actions";
             emit displayMessage(i18n("Not enough free track space above or below the selected playlist clip: need free room on %1 tracks to expand playlist.",
                                      playlistTracks), MltError);
             delete command;
             return;
         }
     }
     new RefreshMonitorCommand(this, info, false, true, command);
     for (int i = 0;  i < playlistTracks; i++) {
         int startPos = info.startPos.frames(m_document->fps());
         Mlt::Producer trackProducer(tractor.track(i));
         Mlt::Playlist trackPlaylist((mlt_playlist) trackProducer.get_service());
         for (int j = 0; j < trackPlaylist.count(); j++) {
             QScopedPointer<Mlt::Producer> original(trackPlaylist.get_clip(j));
             if (original == nullptr || !original->is_valid()) {
                 // invalid clip
                 continue;
             }
             if (original->is_blank()) {
                 startPos += original->get_playtime();
                 continue;
             }
             // Found a producer, import it
             QString originalId = original->parent().get("id");
             // track producer
             if (originalId.contains(QLatin1Char('_'))) {
                 originalId = originalId.section(QLatin1Char('_'), 0, 0);
             }
             // slowmotion producer
             if (originalId.contains(QLatin1Char(':'))) {
                 originalId = originalId.section(QLatin1Char(':'), 1, 1);
             }
             // TODO: Handle speed effect!
 
             QString newId = idMap.value(originalId);
             qCDebug(KDENLIVE_LOG) << "newId: " << newId << ", originalId: " << originalId;
             if (newId.isEmpty()) {
                 qCDebug(KDENLIVE_LOG) << " / /WARNING, MISSING PRODUCER FOR: " << originalId;
                 startPos += original->get_playtime();
                 continue;
             }
             // Ready, insert clip
             ItemInfo insertInfo;
             insertInfo.startPos = GenTime(startPos, m_document->fps());
             int in = original->get_in();
             int out = original->get_out();
             insertInfo.cropStart = GenTime(in, m_document->fps());
             insertInfo.cropDuration = GenTime(out - in + 1, m_document->fps());
             insertInfo.endPos = insertInfo.startPos + insertInfo.cropDuration;
             insertInfo.track = bottomTrack + i;
             EffectsList effects = ClipController::xmlEffectList(original->profile(), *original);
             new AddTimelineClipCommand(this, newId, insertInfo, effects, PlaylistState::Original, true, false, false, command);
             startPos += original->get_playtime();
         }
         updateTrackDuration(bottomTrack + i, command);
     }
 
     // Paste transitions
     QScopedPointer<Mlt::Service> serv(tractor.field());
     while (serv && serv->is_valid()) {
         if (serv->type() == transition_type) {
             Mlt::Transition t((mlt_transition) serv->get_service());
             if (t.get_int("internal_added") > 0) {
                 // This is an auto transition, skip
             } else {
                 Mlt::Properties prop(t.get_properties());
                 ItemInfo transitionInfo;
                 transitionInfo.startPos = info.startPos + GenTime(t.get_in(), m_document->fps());
                 transitionInfo.endPos = info.startPos + GenTime(t.get_out(), m_document->fps());
                 transitionInfo.track = t.get_b_track() + bottomTrack;
                 int endTrack = t.get_a_track() + bottomTrack;
                 if (prop.get("kdenlive_id") == nullptr && QString(prop.get("mlt_service")) == QLatin1String("composite") && Timeline::isSlide(prop.get("geometry"))) {
                     prop.set("kdenlive_id", "slide");
                 }
                 QDomElement base = MainWindow::transitions.getEffectByTag(prop.get("mlt_service"), prop.get("kdenlive_id")).cloneNode().toElement();
 
                 QDomNodeList params = base.elementsByTagName(QStringLiteral("parameter"));
                 for (int i = 0; i < params.count(); ++i) {
                     QDomElement e = params.item(i).toElement();
                     QString paramName = e.hasAttribute(QStringLiteral("tag")) ? e.attribute(QStringLiteral("tag")) : e.attribute(QStringLiteral("name"));
                     QString value;
                     if (paramName == QLatin1String("a_track")) {
                         value = QString::number(transitionInfo.track);
                     } else if (paramName == QLatin1String("b_track")) {
                         value = QString::number(endTrack);
                     } else {
                         value = prop.get(paramName.toUtf8().constData());
                     }
                     //int factor = e.attribute("factor").toInt();
                     if (value.isEmpty()) {
                         continue;
                     }
                     e.setAttribute(QStringLiteral("value"), value);
                 }
                 base.setAttribute(QStringLiteral("force_track"), prop.get_int("force_track"));
                 base.setAttribute(QStringLiteral("automatic"), prop.get_int("automatic"));
                 new AddTransitionCommand(this, transitionInfo, endTrack, base, false, true, command);
             }
         }
         serv.reset(serv->producer());
     }
 
     if (command->childCount() > 0) {
         new RefreshMonitorCommand(this, info, true, false, command);
         m_commandStack->push(command);
     } else {
         delete command;
     }
 }
 
 void CustomTrackView::updateTransitionWidget(Transition *tr, const ItemInfo &info)
 {
     QPoint p;
     ClipItem *transitionClip = getClipItemAtStart(info.startPos, info.track);
     if (transitionClip && transitionClip->binClip()) {
         int frameWidth = transitionClip->binClip()->getProducerIntProperty(QStringLiteral("meta.media.width"));
         int frameHeight = transitionClip->binClip()->getProducerIntProperty(QStringLiteral("meta.media.height"));
         double factor = transitionClip->binClip()->getProducerProperty(QStringLiteral("aspect_ratio")).toDouble();
         if (factor == 0) {
             factor = 1.0;
         }
         p.setX((int)(frameWidth * factor + 0.5));
         p.setY(frameHeight);
     }
     emit transitionItemSelected(tr, getPreviousVideoTrack(tr->track()), p, true);
 }
 
 void CustomTrackView::dropTransitionGeometry(Transition *trans, const QString &geometry)
 {
     if (!m_dragItem || m_dragItem != trans) {
         clearSelection(false);
         m_dragItem = trans;
         m_dragItem->setMainSelectedClip(true);
         trans->setSelected(true);
         updateTimelineSelection();
     }
     emit transitionItemSelected(trans);
     QMap<QString, QString> keyframes;
     keyframes.insert(i18n("Dropped Geometry"), geometry);
     slotImportClipKeyframes(TransitionWidget, trans->info(), trans->toXML(), keyframes);
 }
 
 void CustomTrackView::dropClipGeometry(ClipItem *clip, const QString &geometry)
 {
     if (!m_dragItem || m_dragItem != clip) {
         clearSelection(false);
         m_dragItem = clip;
         m_dragItem->setMainSelectedClip(true);
         clip->setSelected(true);
         updateTimelineSelection();
     }
     emit clipItemSelected(clip);
     if (geometry.isEmpty()) {
         emit displayMessage(i18n("No keyframes to import"), InformationMessage);
         return;
     }
     QMap<QString, QString> keyframes;
     keyframes.insert(geometry.section(QLatin1Char('='), 0, 0), geometry.section(QLatin1Char('='), 1));
     QDomElement currentEffect = clip->getEffectAtIndex(clip->selectedEffectIndex());
     if (currentEffect.isNull()) {
         emit displayMessage(i18n("No effect to import keyframes"), InformationMessage);
         return;
     }
     slotImportClipKeyframes(AVWidget, clip->info(), currentEffect.cloneNode().toElement(), keyframes);
 }
 
 void CustomTrackView::breakLockedGroups(const QList<ItemInfo> &clipsToMove, const QList<ItemInfo> &transitionsToMove, QUndoCommand *masterCommand, bool doIt)
 {
     QList<AbstractGroupItem *> processedGroups;
     for (int i = 0; i < clipsToMove.count(); ++i) {
         ClipItem *clip = getClipItemAtStart(clipsToMove.at(i).startPos, clipsToMove.at(i).track);
         if (clip == nullptr || !clip->parentItem()) {
             qCDebug(KDENLIVE_LOG) << " * ** Canot find clip to break: " << clipsToMove.at(i).startPos.frames(25) << ", " << clipsToMove.at(i).track;
             continue;
         }
         // If group has a locked item, ungroup first
         AbstractGroupItem *grp = static_cast <AbstractGroupItem *>(clip->parentItem());
         if (grp->isItemLocked() && !processedGroups.contains(grp)) {
             processedGroups << grp;
             groupClips(false, grp->childItems(), true, masterCommand, doIt);
         }
     }
     for (int i = 0; i < transitionsToMove.count(); ++i) {
         Transition *trans = getTransitionItemAtStart(transitionsToMove.at(i).startPos, transitionsToMove.at(i).track);
         if (trans == nullptr || !trans->parentItem()) {
             continue;
         }
         // If group has a locked item, ungroup first
         AbstractGroupItem *grp = static_cast <AbstractGroupItem *>(trans->parentItem());
         if (grp->isItemLocked() && !processedGroups.contains(grp)) {
             processedGroups << grp;
             groupClips(false, grp->childItems(), true, masterCommand, doIt);
         }
     }
 }
 
 void CustomTrackView::switchTrackLock()
 {
     slotSwitchTrackLock(m_selectedTrack, !m_timeline->getTrackInfo(m_selectedTrack).isLocked);
 }
 
 void CustomTrackView::switchAllTrackLock()
 {
     if (m_selectedTrack > 1) {
         slotSwitchTrackLock(m_selectedTrack, !m_timeline->getTrackInfo(1).isLocked, true);
     } else if (m_timeline->visibleTracksCount() > 1) {
         slotSwitchTrackLock(m_selectedTrack, !m_timeline->getTrackInfo(2).isLocked, true);
     }
 }
 
 void CustomTrackView::slotAcceptRipple(bool)
 {
     QMetaObject::invokeMethod(this, "switchTrimMode", Qt::QueuedConnection);
     /*TrimManager *mgr = qobject_cast<TrimManager *>(m_toolManagers.value(TrimType));
     if (mgr)
 
     }*/
 }
 
 void CustomTrackView::doRipple(bool accept)
 {
     if (accept) {
         QUndoCommand *command = new QUndoCommand;
         command->setText(i18n("Ripple Edit"));
         ItemInfo info = m_dragItem->info();
         int resizePos = m_cursorPos;
         // Ripple clip start
         ClipItem *second = getClipItemAtEnd(info.startPos, info.track);// - GenTime(1, m_document->fps()), info.track);
         if (!second) {
             // Something is wrong
             qCDebug(KDENLIVE_LOG) << " * * ** CAMNNOT FIND SECONT CLIP";
             emit displayMessage(i18n("Cannot find clip"), InformationMessage);
             monitorRefresh();
             QTimer::singleShot(0, this, SLOT(resetScene()));
             return;
         }
         ItemInfo secondInfo = second->info();
         if (resizePos > info.startPos.frames(m_document->fps())) {
             // shortening target clip, resize selected clip first
             prepareResizeClipStart(m_dragItem, info, resizePos, true, command);
             prepareResizeClipEnd(second, secondInfo, resizePos, true, command);
         } else {
             prepareResizeClipEnd(second, secondInfo, resizePos, true, command);
             prepareResizeClipStart(m_dragItem, info, resizePos, true, command);
         }
         m_commandStack->push(command);
     }
     monitorRefresh();
     emit loadMonitorScene(MonitorSceneDefault, false);
 }
 
 void CustomTrackView::setOperationMode(OperationType mode)
 {
     m_moveOpMode = mode;
 }
 
 OperationType CustomTrackView::prepareMode() const
 {
     return m_operationMode;
 }
 
 OperationType CustomTrackView::operationMode() const
 {
     return m_moveOpMode;
 }
 
 AbstractClipItem *CustomTrackView::dragItem()
 {
     return m_dragItem;
 }
 
 AbstractGroupItem *CustomTrackView::selectionGroup()
 {
     AbstractGroupItem *group = nullptr;
     if (m_selectionGroup) {
         group = static_cast <AbstractGroupItem *>(m_selectionGroup);
     } else if (m_dragItem) {
         group = static_cast <AbstractGroupItem *>(m_dragItem->parentItem());
     }
     return group;
 }
 
 TimelineMode::EditMode CustomTrackView::sceneEditMode()
 {
     return m_scene->editMode();
 }
 
 bool CustomTrackView::isLastClip(const ItemInfo &info)
 {
     return m_timeline->isLastClip(info);
 }
 
 TrackInfo CustomTrackView::getTrackInfo(int ix)
 {
     return m_timeline->getTrackInfo(ix);
 }
 
 Timecode CustomTrackView::timecode()
 {
     return m_document->timecode();
 }
 
 void CustomTrackView::reloadTrack(const ItemInfo &info, bool includeLastFrame)
 {
     m_timeline->reloadTrack(info, includeLastFrame);
 }
 
 void CustomTrackView::sortGuides()
 {
     qSort(m_guides.begin(), m_guides.end(), sortGuidesList);
 }
 
 void CustomTrackView::switchTrimMode(int mode)
 {
     switchTrimMode((TrimMode) mode);
 }
 
 void CustomTrackView::switchTrimMode(TrimMode mode)
 {
     TrimManager *mgr = qobject_cast<TrimManager *>(m_toolManagers.value(AbstractToolManager::TrimType));
     if (mode == NormalTrim) {
         mode = (TrimMode)(qMax(((int) mgr->trimMode() + 1) % 5, 1));
     }
     // Find best clip to trim
     ItemInfo info;
     //TODO: if cursor is not on a cut, switch only between slip and slide
     AbstractClipItem *trimItem = nullptr;
     if (m_dragItem && m_dragItem->type() == AVWidget) {
         trimItem = m_dragItem;
     } else {
         // find topmost clip
         trimItem = getUpperClipItemAt(m_cursorPos);
         if (trimItem) {
             slotSelectItem(trimItem);
         }
     }
     if (trimItem) {
         info = trimItem->info();
         GenTime cursor(m_cursorPos, m_document->fps());
         if (cursor == info.startPos) {
             // Start trim at clip start
             mgr->setTrimMode(mode, info, true);
         } else if (cursor == info.endPos) {
             // Start trim at clip end
             mgr->setTrimMode(mode, info, false);
         } else {
             int diffStart = qAbs(m_cursorPos - info.startPos.frames(m_document->fps()));
             int diffEnd = qAbs(m_cursorPos - info.endPos.frames(m_document->fps()));
             mgr->setTrimMode(mode, info, diffStart < diffEnd);
         }
     }
 }
 
 bool CustomTrackView::rippleClip(ClipItem *clip, int diff)
 {
     GenTime timeOffset(diff, m_document->fps());
     if (clip->cropDuration() + timeOffset > clip->maxDuration()) {
         emit displayMessage(i18n("Maximum length reached"), InformationMessage);
         return false;
     }
     QList<QGraphicsItem *> selection;
     spaceToolSelectTrackOnly(clip->track(), selection, clip->endPos());
     createGroupForSelectedItems(selection);
     QList<AbstractClipItem *> items;
     foreach (QGraphicsItem *item, selection) {
         if (item->type() == AVWidget || item->type() == TransitionWidget) {
             items << (AbstractClipItem *) item;
         }
     }
     bool snap = KdenliveSettings::snaptopoints();
     KdenliveSettings::setSnaptopoints(false);
     QList<AbstractClipItem *> excluded;
     excluded << clip;
     if (canBePasted(items, timeOffset, 0, excluded)) {
         m_selectionGroup->setTransform(QTransform::fromTranslate(diff, 0), true);
         clip->setCropStart(clip->cropStart() - GenTime(diff, m_document->fps()));
         clip->resizeEnd(clip->endPos().frames(m_document->fps()) + diff, false);
         qCDebug(KDENLIVE_LOG) << "* * *RESIZING END: " << clip->endPos().frames(m_document->fps()) + diff;
     } else {
         //TODO: corruption, cannot move
     }
     /*if (diff > 0) {
         for (int i = 0; i < list
         m_view->
         m_secondClip->resizeStart(pos, true, false);
         m_firstClip->resizeEnd(pos, false);
     } else {
         m_secondClip->resizeStart(pos, true, false);
     }*/
     KdenliveSettings::setSnaptopoints(snap);
     return true;
 }
 
 void CustomTrackView::finishRipple(ClipItem *clip, const ItemInfo &startInfo, int diff, bool fromStart)
 {
     QUndoCommand *moveCommand = new QUndoCommand();
     moveCommand->setText(i18n("Ripple clip"));
     ItemInfo newInfo = clip->info();
     if (fromStart) {
         //newInfo.cropStart += GenTime(diff, m_document->fps());
     }
     qCDebug(KDENLIVE_LOG) << "CROPSATRT: " << startInfo.cropStart.frames(25) << " / " << newInfo.cropStart.frames(25);
     new ResizeClipCommand(this, startInfo, newInfo, false, false, moveCommand);
     m_commandStack->push(moveCommand);
     if (m_timeline->track(startInfo.track)->resize_in_out(startInfo.startPos.frames(m_document->fps()), clip->cropStart().frames(m_document->fps()), clip->cropStart().frames(m_document->fps()) + clip->cropDuration().frames(m_document->fps())))
         //resizeClip(startInfo, clip->info(), true);
     {
         qCDebug(KDENLIVE_LOG) << "* * *RESIZING CLIP: " << diff << ", FROM START: " << fromStart;
     }
 }