diff --git a/libs/ui/KisAsyncAnimationFramesSavingRenderer.cpp b/libs/ui/KisAsyncAnimationFramesSavingRenderer.cpp
index 5478ba858e..1afb8acd6d 100644
--- a/libs/ui/KisAsyncAnimationFramesSavingRenderer.cpp
+++ b/libs/ui/KisAsyncAnimationFramesSavingRenderer.cpp
@@ -1,127 +1,127 @@
 /*
  *  Copyright (c) 2017 Dmitry Kazakov <dimula73@gmail.com>
  *
  *  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 "KisAsyncAnimationFramesSavingRenderer.h"
 
 #include "kis_image.h"
 #include "kis_paint_device.h"
 #include "KisImportExportFilter.h"
 #include "KisPart.h"
 #include "KisDocument.h"
 #include "kis_time_range.h"
 #include "kis_paint_layer.h"
 
 
 struct KisAsyncAnimationFramesSavingRenderer::Private
 {
     Private(KisImageSP image, const KisTimeRange &_range, int _sequenceNumberingOffset, KisPropertiesConfigurationSP _exportConfiguration)
         : savingDoc(KisPart::instance()->createDocument()),
           range(_range),
           sequenceNumberingOffset(_sequenceNumberingOffset),
           exportConfiguration(_exportConfiguration)
     {
 
         savingDoc->setAutoSaveDelay(0);
         savingDoc->setFileBatchMode(true);
 
         KisImageSP savingImage = new KisImage(savingDoc->createUndoStore(),
                                               image->bounds().width(),
                                               image->bounds().height(),
                                               image->colorSpace(),
                                               QString());
 
         savingImage->setResolution(image->xRes(), image->yRes());
         savingDoc->setCurrentImage(savingImage);
 
         KisPaintLayer* paintLayer = new KisPaintLayer(savingImage, "paint device", 255);
         savingImage->addNode(paintLayer, savingImage->root(), KisLayerSP(0));
 
         savingDevice = paintLayer->paintDevice();
     }
 
     QScopedPointer<KisDocument> savingDoc;
     KisPaintDeviceSP savingDevice;
 
     KisTimeRange range;
     int sequenceNumberingOffset = 0;
 
 
     QString filenamePrefix;
     QString filenameSuffix;
 
     QByteArray outputMimeType;
     KisPropertiesConfigurationSP exportConfiguration;
 };
 
 KisAsyncAnimationFramesSavingRenderer::KisAsyncAnimationFramesSavingRenderer(KisImageSP image,
                                                                              const QString &fileNamePrefix,
                                                                              const QString &fileNameSuffix,
                                                                              const QByteArray &outputMimeType,
                                                                              const KisTimeRange &range,
                                                                              const int sequenceNumberingOffset,
                                                                              KisPropertiesConfigurationSP exportConfiguration)
     : m_d(new Private(image, range, sequenceNumberingOffset, exportConfiguration))
 {
     m_d->filenamePrefix = fileNamePrefix;
     m_d->filenameSuffix = fileNameSuffix;
     m_d->outputMimeType = outputMimeType;
 
     connect(this, SIGNAL(sigCompleteRegenerationInternal(int)), SLOT(notifyFrameCompleted(int)));
     connect(this, SIGNAL(sigCancelRegenerationInternal(int)), SLOT(notifyFrameCancelled(int)));
 }
 
 
 
 
 KisAsyncAnimationFramesSavingRenderer::~KisAsyncAnimationFramesSavingRenderer()
 {
 }
 
 void KisAsyncAnimationFramesSavingRenderer::frameCompletedCallback(int frame)
 {
     KisImageSP image = requestedImage();
     if (!image) return;
 
     m_d->savingDevice->makeCloneFromRough(image->projection(), image->bounds());
 
     KisTimeRange range(frame, 1);
 
     KisImportExportFilter::ConversionStatus status = KisImportExportFilter::OK;
 
     for (int i = range.start(); i <= range.end(); i++) {
-        QString frameNumber = QString("%1").arg(i - m_d->range.start() + m_d->sequenceNumberingOffset, 4, 10, QChar('0'));
+        QString frameNumber = QString("%1").arg(i + m_d->sequenceNumberingOffset, 4, 10, QChar('0'));
         QString filename = m_d->filenamePrefix + frameNumber + m_d->filenameSuffix;
 
         if (!m_d->savingDoc->exportDocumentSync(QUrl::fromLocalFile(filename), m_d->outputMimeType, m_d->exportConfiguration)) {
             status = KisImportExportFilter::InternalError;
             break;
         }
     }
 
     if (status == KisImportExportFilter::OK) {
         emit sigCompleteRegenerationInternal(frame);
     } else {
         emit sigCancelRegenerationInternal(frame);
     }
 }
 
 void KisAsyncAnimationFramesSavingRenderer::frameCancelledCallback(int frame)
 {
     notifyFrameCancelled(frame);
 }
 
diff --git a/libs/ui/dialogs/KisAsyncAnimationRenderDialogBase.cpp b/libs/ui/dialogs/KisAsyncAnimationRenderDialogBase.cpp
index c12d5bc5e8..28059211fb 100644
--- a/libs/ui/dialogs/KisAsyncAnimationRenderDialogBase.cpp
+++ b/libs/ui/dialogs/KisAsyncAnimationRenderDialogBase.cpp
@@ -1,333 +1,333 @@
 /*
  *  Copyright (c) 2017 Dmitry Kazakov <dimula73@gmail.com>
  *
  *  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 "KisAsyncAnimationRenderDialogBase.h"
 
 #include <QEventLoop>
 #include <QProgressDialog>
 #include <QElapsedTimer>
 #include <QApplication>
 #include <QThread>
 #include <QTime>
 #include <QList>
 #include <QtMath>
 
 #include <klocalizedstring.h>
 
 #include "KisViewManager.h"
 #include "KisAsyncAnimationRendererBase.h"
 #include "kis_time_range.h"
 #include "kis_image.h"
 #include "kis_image_config.h"
 #include "kis_memory_statistics_server.h"
 
 #include <vector>
 #include <memory>
 
 namespace {
 struct RendererPair {
     std::unique_ptr<KisAsyncAnimationRendererBase> renderer;
     KisImageSP image;
 
     RendererPair() {}
     RendererPair(KisAsyncAnimationRendererBase *_renderer, KisImageSP _image)
         : renderer(_renderer),
           image(_image)
     {
     }
     RendererPair(RendererPair &&rhs)
         : renderer(std::move(rhs.renderer)),
           image(rhs.image)
     {
     }
 };
 
 int calculateNumberMemoryAllowedClones(KisImageSP image)
 {
     KisMemoryStatisticsServer::Statistics stats =
         KisMemoryStatisticsServer::instance()
         ->fetchMemoryStatistics(image);
 
     const qint64 allowedMemory = 0.8 * stats.tilesHardLimit - stats.realMemorySize;
     const qint64 cloneSize = stats.projectionsSize;
 
-    return allowedMemory > 0 ? allowedMemory / cloneSize : 0;
+    return cloneSize > 0 ? allowedMemory / cloneSize : 0;
 }
 
 }
 
 
 struct KisAsyncAnimationRenderDialogBase::Private
 {
     Private(const QString &_actionTitle, KisImageSP _image, int _busyWait)
         : actionTitle(_actionTitle),
           image(_image),
           busyWait(_busyWait)
     {
     }
 
     QString actionTitle;
     KisImageSP image;
     int busyWait;
     bool isBatchMode = false;
 
     std::vector<RendererPair> asyncRenderers;
     bool memoryLimitReached = false;
 
     QElapsedTimer processingTime;
     QScopedPointer<QProgressDialog> progressDialog;
     QEventLoop waitLoop;
 
     QList<int> stillDirtyFrames;
     QList<int> framesInProgress;
     int dirtyFramesCount = 0;
     Result result = RenderComplete;
 
     int numDirtyFramesLeft() const {
         return stillDirtyFrames.size() + framesInProgress.size();
     }
 
 };
 
 KisAsyncAnimationRenderDialogBase::KisAsyncAnimationRenderDialogBase(const QString &actionTitle, KisImageSP image, int busyWait)
     : m_d(new Private(actionTitle, image, busyWait))
 {
 }
 
 KisAsyncAnimationRenderDialogBase::~KisAsyncAnimationRenderDialogBase()
 {
 }
 
 KisAsyncAnimationRenderDialogBase::Result
 KisAsyncAnimationRenderDialogBase::regenerateRange(KisViewManager *viewManager)
 {
     {
         /**
          * Since this method can be called from the places where no
          * view manager is available, we need this manually crafted
          * ugly construction to "try-lock-cance" the image.
          */
 
         bool imageIsIdle = true;
 
         if (viewManager) {
             imageIsIdle = viewManager->blockUntilOperationsFinished(m_d->image);
         } else {
             imageIsIdle = false;
             if (m_d->image->tryBarrierLock(true)) {
                 m_d->image->unlock();
                 imageIsIdle = true;
             }
         }
 
         if (!imageIsIdle) {
             return RenderCancelled;
         }
     }
 
     m_d->stillDirtyFrames = calcDirtyFrames();
     m_d->framesInProgress.clear();
     m_d->result = RenderComplete;
     m_d->dirtyFramesCount = m_d->stillDirtyFrames.size();
 
     if (!m_d->isBatchMode) {
         QWidget *parentWidget = viewManager ? viewManager->mainWindow() : 0;
         m_d->progressDialog.reset(new QProgressDialog(m_d->actionTitle, i18n("Cancel"), 0, 0, parentWidget));
         m_d->progressDialog->setWindowModality(Qt::ApplicationModal);
         m_d->progressDialog->setMinimum(0);
         m_d->progressDialog->setMaximum(m_d->dirtyFramesCount);
         m_d->progressDialog->setMinimumDuration(m_d->busyWait);
         connect(m_d->progressDialog.data(), SIGNAL(canceled()), SLOT(slotCancelRegeneration()));
     }
 
     if (m_d->dirtyFramesCount <= 0) return m_d->result;
 
     m_d->processingTime.start();
 
     KisImageConfig cfg;
 
     const int maxThreads = cfg.maxNumberOfThreads();
     const int numAllowedWorker = 1 + calculateNumberMemoryAllowedClones(m_d->image);
     const int proposedNumWorkers = qMin(m_d->dirtyFramesCount, cfg.frameRenderingClones());
     const int numWorkers = qMin(proposedNumWorkers, numAllowedWorker);
     const int numThreadsPerWorker = qMax(1, qCeil(qreal(maxThreads) / numWorkers));
 
     m_d->memoryLimitReached = numWorkers < proposedNumWorkers;
 
     const int oldWorkingThreadsLimit = m_d->image->workingThreadsLimit();
 
     ENTER_FUNCTION() << ppVar(numWorkers) << ppVar(numThreadsPerWorker);
 
     for (int i = 0; i < numWorkers; i++) {
         // reuse the image for one of the workers
         KisImageSP image = i == numWorkers - 1 ? m_d->image : m_d->image->clone(true);
 
         image->setWorkingThreadsLimit(numThreadsPerWorker);
         KisAsyncAnimationRendererBase *renderer = createRenderer(image);
 
         connect(renderer, SIGNAL(sigFrameCompleted(int)), SLOT(slotFrameCompleted(int)));
         connect(renderer, SIGNAL(sigFrameCancelled(int)), SLOT(slotFrameCancelled(int)));
 
         m_d->asyncRenderers.push_back(RendererPair(renderer, image));
     }
 
     ENTER_FUNCTION() << "Copying done in" << m_d->processingTime.elapsed();
 
     tryInitiateFrameRegeneration();
     updateProgressLabel();
 
     if (m_d->numDirtyFramesLeft() > 0) {
         m_d->waitLoop.exec();
     }
 
     ENTER_FUNCTION() << "Full regeneration done in" << m_d->processingTime.elapsed();
 
     for (auto &pair : m_d->asyncRenderers) {
         KIS_SAFE_ASSERT_RECOVER_NOOP(!pair.renderer->isActive());
         if (viewManager) {
             viewManager->blockUntilOperationsFinishedForced(pair.image);
         } else {
             pair.image->barrierLock(true);
             pair.image->unlock();
         }
 
     }
     m_d->asyncRenderers.clear();
 
     if (viewManager) {
         viewManager->blockUntilOperationsFinishedForced(m_d->image);
     } else {
         m_d->image->barrierLock(true);
         m_d->image->unlock();
     }
 
     m_d->image->setWorkingThreadsLimit(oldWorkingThreadsLimit);
 
     m_d->progressDialog.reset();
 
     return m_d->result;
 }
 
 void KisAsyncAnimationRenderDialogBase::slotFrameCompleted(int frame)
 {
     Q_UNUSED(frame);
 
     m_d->framesInProgress.removeOne(frame);
 
     tryInitiateFrameRegeneration();
     updateProgressLabel();
 }
 
 void KisAsyncAnimationRenderDialogBase::slotFrameCancelled(int frame)
 {
     Q_UNUSED(frame);
 
     cancelProcessingImpl(false);
 }
 
 void KisAsyncAnimationRenderDialogBase::slotCancelRegeneration()
 {
     cancelProcessingImpl(true);
 }
 
 void KisAsyncAnimationRenderDialogBase::cancelProcessingImpl(bool isUserCancelled)
 {
     for (auto &pair : m_d->asyncRenderers) {
         if (pair.renderer->isActive()) {
             pair.renderer->cancelCurrentFrameRendering();
         }
         KIS_SAFE_ASSERT_RECOVER_NOOP(!pair.renderer->isActive());
     }
 
     m_d->stillDirtyFrames.clear();
     m_d->framesInProgress.clear();
     m_d->result = isUserCancelled ? RenderCancelled : RenderFailed;
     updateProgressLabel();
 }
 
 
 void KisAsyncAnimationRenderDialogBase::tryInitiateFrameRegeneration()
 {
     bool hadWorkOnPreviousCycle = false;
 
     while (!m_d->stillDirtyFrames.isEmpty()) {
         for (auto &pair : m_d->asyncRenderers) {
             if (!pair.renderer->isActive()) {
                 const int currentDirtyFrame = m_d->stillDirtyFrames.takeFirst();
 
                 initializeRendererForFrame(pair.renderer.get(), pair.image, currentDirtyFrame);
                 pair.renderer->startFrameRegeneration(pair.image, currentDirtyFrame);
                 hadWorkOnPreviousCycle = true;
                 m_d->framesInProgress.append(currentDirtyFrame);
                 break;
             }
         }
 
         if (!hadWorkOnPreviousCycle) break;
         hadWorkOnPreviousCycle = false;
     }
 }
 
 void KisAsyncAnimationRenderDialogBase::updateProgressLabel()
 {
     const int processedFramesCount = m_d->dirtyFramesCount - m_d->numDirtyFramesLeft();
 
     const qint64 elapsedMSec = m_d->processingTime.elapsed();
     const qint64 estimatedMSec =
         !processedFramesCount ? 0 :
         elapsedMSec * m_d->dirtyFramesCount / processedFramesCount;
 
     const QTime elapsedTime = QTime::fromMSecsSinceStartOfDay(elapsedMSec);
     const QTime estimatedTime = QTime::fromMSecsSinceStartOfDay(estimatedMSec);
 
     const QString timeFormat = estimatedTime.hour() > 0 ? "HH:mm:ss" : "mm:ss";
 
     const QString elapsedTimeString = elapsedTime.toString(timeFormat);
     const QString estimatedTimeString = estimatedTime.toString(timeFormat);
 
     const QString memoryLimitMessage(
         i18n("\n\nMemory limit is reached!\nThe number of clones is limited to %1\n\n",
              m_d->asyncRenderers.size()));
 
 
     const QString progressLabel(i18n("%1\n\nElapsed: %2\nEstimated: %3\n\n%4",
                                      m_d->actionTitle,
                                      elapsedTimeString,
                                      estimatedTimeString,
                                      m_d->memoryLimitReached ? memoryLimitMessage : QString()));
     if (m_d->progressDialog) {
         m_d->progressDialog->setLabelText(progressLabel);
         m_d->progressDialog->setValue(processedFramesCount);
     }
 
     if (!m_d->numDirtyFramesLeft()) {
         m_d->waitLoop.quit();
     }
 }
 
 
 
 void KisAsyncAnimationRenderDialogBase::setBatchMode(bool value)
 {
     m_d->isBatchMode = value;
 }
 
 bool KisAsyncAnimationRenderDialogBase::batchMode() const
 {
     return m_d->isBatchMode;
 }
diff --git a/plugins/impex/video/video_saver.cpp b/plugins/impex/video/video_saver.cpp
index d0564943a9..4521d300dc 100644
--- a/plugins/impex/video/video_saver.cpp
+++ b/plugins/impex/video/video_saver.cpp
@@ -1,361 +1,365 @@
 /*
  *  Copyright (c) 2016 Dmitry Kazakov <dimula73@gmail.com>
  *
  *  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 "video_saver.h"
 
 #include <QDebug>
 
 #include <QFileInfo>
 
 #include <KisDocument.h>
 #include <KoColorSpace.h>
 #include <KoColorSpaceRegistry.h>
 #include <KoColorModelStandardIds.h>
 #include <KoResourcePaths.h>
 
 
 #include <kis_image.h>
 #include <kis_image_animation_interface.h>
 #include <kis_time_range.h>
 
 #include "kis_config.h"
 
 #include <QFileSystemWatcher>
 #include <QProcess>
 #include <QProgressDialog>
 #include <QEventLoop>
 #include <QTemporaryFile>
 #include <QTemporaryDir>
 #include <QTime>
 
 #include "KisPart.h"
 
 class KisFFMpegProgressWatcher : public QObject {
     Q_OBJECT
 public:
     KisFFMpegProgressWatcher(QFile &progressFile, int totalFrames)
         : m_progressFile(progressFile),
           m_totalFrames(totalFrames)
         {
             connect(&m_progressWatcher, SIGNAL(fileChanged(QString)), SLOT(slotFileChanged()));
 
 
             m_progressWatcher.addPath(m_progressFile.fileName());
         }
 
 private Q_SLOTS:
     void slotFileChanged() {
         int currentFrame = -1;
         bool isEnded = false;
 
         while(!m_progressFile.atEnd()) {
             QString line = QString(m_progressFile.readLine()).remove(QChar('\n'));
             QStringList var = line.split("=");
 
             if (var[0] == "frame") {
                 currentFrame = var[1].toInt();
             } else if (var[0] == "progress") {
                 isEnded = var[1] == "end";
             }
         }
 
         if (isEnded) {
             emit sigProgressChanged(100);
             emit sigProcessingFinished();
         } else {
 
             emit sigProgressChanged(100 * currentFrame / m_totalFrames);
         }
     }
 
 Q_SIGNALS:
     void sigProgressChanged(int percent);
     void sigProcessingFinished();
 
 private:
     QFileSystemWatcher m_progressWatcher;
     QFile &m_progressFile;
     int m_totalFrames;
 };
 
 
 class KisFFMpegRunner
 {
 public:
     KisFFMpegRunner(const QString &ffmpegPath)
         : m_cancelled(false),
           m_ffmpegPath(ffmpegPath) {}
 public:
     KisImageBuilder_Result runFFMpeg(const QStringList &specialArgs,
                                      const QString &actionName,
                                      const QString &logPath,
                                      int totalFrames)
     {
         dbgFile << "runFFMpeg: specialArgs" << specialArgs
                 << "actionName" << actionName
                 << "logPath" << logPath
                 << "totalFrames" << totalFrames;
 
         QTemporaryFile progressFile(QDir::tempPath() + QDir::separator() + "KritaFFmpegProgress.XXXXXX");
         progressFile.open();
 
         m_process.setStandardOutputFile(logPath);
         m_process.setProcessChannelMode(QProcess::MergedChannels);
         QStringList args;
         args << "-v" << "debug"
              << "-nostdin"
              << "-progress" << progressFile.fileName()
              << specialArgs;
 
         qDebug() << "\t" << m_ffmpegPath << args.join(" ");
 
         m_cancelled = false;
         m_process.start(m_ffmpegPath, args);
         return waitForFFMpegProcess(actionName, progressFile, m_process, totalFrames);
     }
 
     void cancel() {
         m_cancelled = true;
         m_process.kill();
     }
 
 private:
     KisImageBuilder_Result waitForFFMpegProcess(const QString &message,
                                                 QFile &progressFile,
                                                 QProcess &ffmpegProcess,
                                                 int totalFrames)
     {
 
         KisFFMpegProgressWatcher watcher(progressFile, totalFrames);
 
         QProgressDialog progress(message, "", 0, 0, KisPart::instance()->currentMainwindow());
         progress.setWindowModality(Qt::ApplicationModal);
         progress.setCancelButton(0);
         progress.setMinimumDuration(0);
         progress.setValue(0);
         progress.setRange(0, 100);
 
         QEventLoop loop;
         loop.connect(&watcher, SIGNAL(sigProcessingFinished()), SLOT(quit()));
         loop.connect(&ffmpegProcess, SIGNAL(finished(int, QProcess::ExitStatus)), SLOT(quit()));
         loop.connect(&ffmpegProcess, SIGNAL(error(QProcess::ProcessError)), SLOT(quit()));
         loop.connect(&watcher, SIGNAL(sigProgressChanged(int)), &progress, SLOT(setValue(int)));
 
         if (ffmpegProcess.state() != QProcess::NotRunning) {
             loop.exec();
 
             // wait for some erroneous case
             ffmpegProcess.waitForFinished(5000);
         }
 
         KisImageBuilder_Result retval = KisImageBuilder_RESULT_OK;
 
         if (ffmpegProcess.state() != QProcess::NotRunning) {
             // sorry...
             ffmpegProcess.kill();
             retval = KisImageBuilder_RESULT_FAILURE;
         } else if (m_cancelled) {
             retval = KisImageBuilder_RESULT_CANCEL;
         } else if (ffmpegProcess.exitCode()) {
             retval = KisImageBuilder_RESULT_FAILURE;
         }
 
         return retval;
     }
 
 private:
     QProcess m_process;
     bool m_cancelled;
     QString m_ffmpegPath;
 };
 
 
 VideoSaver::VideoSaver(KisDocument *doc, const QString &ffmpegPath, bool batchMode)
     : m_image(doc->image())
     , m_doc(doc)
     , m_batchMode(batchMode)
     , m_ffmpegPath(ffmpegPath)
     , m_runner(new KisFFMpegRunner(ffmpegPath))
 {
 }
 
 VideoSaver::~VideoSaver()
 {
 }
 
 KisImageSP VideoSaver::image()
 {
     return m_image;
 }
 
 bool VideoSaver::hasFFMpeg() const
 {
     return !m_ffmpegPath.isEmpty();
 }
 
 KisImageBuilder_Result VideoSaver::encode(const QString &filename, KisPropertiesConfigurationSP configuration)
 {
 
     qDebug() << "ffmpeg" << m_ffmpegPath << "filename" << filename << "configuration" << configuration->toXML();
 
     if (m_ffmpegPath.isEmpty()) {
         m_ffmpegPath = configuration->getString("ffmpeg_path");
         if (!QFileInfo(m_ffmpegPath).exists()) {
             return KisImageBuilder_RESULT_FAILURE;
         }
     }
 
     KisImageBuilder_Result result = KisImageBuilder_RESULT_OK;
 
     KIS_SAFE_ASSERT_RECOVER_NOOP(configuration->hasProperty("first_frame"));
     KIS_SAFE_ASSERT_RECOVER_NOOP(configuration->hasProperty("last_frame"));
     KIS_SAFE_ASSERT_RECOVER_NOOP(configuration->hasProperty("height"));
     KIS_SAFE_ASSERT_RECOVER_NOOP(configuration->hasProperty("width"));
     KIS_SAFE_ASSERT_RECOVER_NOOP(configuration->hasProperty("include_audio"));
     KIS_SAFE_ASSERT_RECOVER_NOOP(configuration->hasProperty("directory"));
     KIS_SAFE_ASSERT_RECOVER_NOOP(configuration->hasProperty("framerate"));
 
     KisImageAnimationInterface *animation = m_image->animationInterface();
     const KisTimeRange fullRange = animation->fullClipRange();
     const int frameRate = configuration->getInt("framerate", animation->framerate());
 
-    const KisTimeRange clipRange(configuration->getInt("first_frame", fullRange.start()), configuration->getInt("last_frame", fullRange.end()));
+    const int sequenceNumberingOffset = configuration->getInt("sequence_start", 0);
+    const KisTimeRange clipRange(sequenceNumberingOffset + configuration->getInt("first_frame", fullRange.start()),
+                                 sequenceNumberingOffset + configuration->getInt("last_frame", fullRange.end())
+    );
+
     const bool includeAudio = configuration->getBool("include_audio", true);
 
     const int exportHeight = configuration->getInt("height", int(m_image->height()));
     const int exportWidth = configuration->getInt("width", int(m_image->width()));
 
      // export dimensions could be off a little bit, so the last force option tweaks the pixels for the export to work
     const QString exportDimensions = QString("scale=w=").append(QString::number(exportWidth)).append(":h=")
             .append(QString::number(exportHeight)).append(":force_original_aspect_ratio=decrease");
 
 
     const QDir framesDir(configuration->getString("directory"));
 
     QString resultFile;
     if (QFileInfo(filename).isAbsolute()) {
         resultFile = filename;
     }
     else {
         resultFile = framesDir.absolutePath() + "/" + filename;
     }
     const QFileInfo info(resultFile);
     const QString suffix = info.suffix().toLower();
 
     const QString palettePath = framesDir.filePath("palette.png");
 
     const QString savedFilesMask = configuration->getString("savedFilesMask");
 
     const QStringList additionalOptionsList = configuration->getString("customUserOptions").split(' ', QString::SkipEmptyParts);
 
     if (suffix == "gif") {
         {
             QStringList args;
             args << "-r" << QString::number(frameRate)
                  << "-start_number" << QString::number(clipRange.start())
                  << "-i" << savedFilesMask
                  << "-vf" << "palettegen"
                  << "-y" << palettePath;
 
             KisImageBuilder_Result result =
                 m_runner->runFFMpeg(args, i18n("Fetching palette..."),
                                     framesDir.filePath("log_generate_palette_gif.log"),
                                     clipRange.duration());
 
             if (result != KisImageBuilder_RESULT_OK) {
                 return result;
             }
         }
 
         {
             QStringList args;
             args << "-r" << QString::number(frameRate)
                  << "-start_number" << QString::number(clipRange.start())
                  << "-i" << savedFilesMask
                  << "-i" << palettePath
                  << "-lavfi" << "[0:v][1:v] paletteuse"
                  << additionalOptionsList
                  << "-y" << resultFile;
 
             // if we are exporting out at a different image size, we apply scaling filter
             if (m_image->height() != exportHeight || m_image->width() != exportWidth) {
                 args << "-vf" << exportDimensions;
             }
 
 
             dbgFile << "savedFilesMask" << savedFilesMask << "start" << QString::number(clipRange.start()) << "duration" << clipRange.duration();
 
             KisImageBuilder_Result result =
                 m_runner->runFFMpeg(args, i18n("Encoding frames..."),
                                     framesDir.filePath("log_encode_gif.log"),
                                     clipRange.duration());
 
             if (result != KisImageBuilder_RESULT_OK) {
                 return result;
             }
         }
     } else {
         QStringList args;
         args << "-r" << QString::number(frameRate)
              << "-start_number" << QString::number(clipRange.start())
              << "-i" << savedFilesMask;
 
 
 
         QFileInfo audioFileInfo = animation->audioChannelFileName();
         if (includeAudio && audioFileInfo.exists()) {
             const int msecStart = clipRange.start() * 1000 / animation->framerate();
             const int msecDuration = clipRange.duration() * 1000 / animation->framerate();
 
             const QTime startTime = QTime::fromMSecsSinceStartOfDay(msecStart);
             const QTime durationTime = QTime::fromMSecsSinceStartOfDay(msecDuration);
             const QString ffmpegTimeFormat("H:m:s.zzz");
 
             args << "-ss" << startTime.toString(ffmpegTimeFormat);
             args << "-t" << durationTime.toString(ffmpegTimeFormat);
 
             args << "-i" << audioFileInfo.absoluteFilePath();
         }
 
 
         // if we are exporting out at a different image size, we apply scaling filter
         // export options HAVE to go after input options, so make sure this is after the audio import
         if (m_image->height() != exportHeight || m_image->width() != exportWidth) {
             args << "-vf" << exportDimensions;
         }
 
 
         args << additionalOptionsList
              << "-y" << resultFile;
 
 
         result = m_runner->runFFMpeg(args, i18n("Encoding frames..."),
                                      framesDir.filePath("log_encode.log"),
                                      clipRange.duration());
     }
 
     return result;
 }
 
 void VideoSaver::cancel()
 {
     m_runner->cancel();
 }
 
 #include "video_saver.moc"