File indexing completed on 2024-04-28 15:39:47

 // SPDX-FileCopyrightText: 2012-2022 The KPhotoAlbum Development Team
 //
 // SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
 
 #include "HandleVideoThumbnailRequestJob.h"
 
 #include <ImageManager/ExtractOneVideoFrame.h>
 #include <ImageManager/ImageClientInterface.h>
 #include <ImageManager/ImageRequest.h>
 #include <MainWindow/FeatureDialog.h>
 #include <ThumbnailView/CellGeometry.h>
 #include <Utilities/ImageUtil.h>
 #include <kpabase/SettingsData.h>
 #include <kpathumbnails/ThumbnailCache.h>
 
 #include <KLocalizedString>
 #include <QCryptographicHash>
 #include <QDir>
 #include <QIcon>
 #include <QImage>
 
 namespace BackgroundJobs
 {
 
 HandleVideoThumbnailRequestJob::HandleVideoThumbnailRequestJob(ImageManager::ImageRequest *request, BackgroundTaskManager::Priority priority, ImageManager::ThumbnailCache *thumbnailCache)
     : BackgroundTaskManager::JobInterface(priority)
     , m_request(request)
     , m_thumbnailCache(thumbnailCache)
 {
 }
 
 QString HandleVideoThumbnailRequestJob::title() const
 {
     return i18n("Extract Video Thumbnail");
 }
 
 QString HandleVideoThumbnailRequestJob::details() const
 {
     return m_request->databaseFileName().relative();
 }
 
 void HandleVideoThumbnailRequestJob::execute()
 {
     QImage image(pathForRequest(m_request->fileSystemFileName()).absolute());
     if (!image.isNull())
         frameLoaded(image);
     else
         ImageManager::ExtractOneVideoFrame::extract(m_request->fileSystemFileName(), 0, this, SLOT(frameLoaded(QImage)));
 }
 
 void HandleVideoThumbnailRequestJob::frameLoaded(QImage image)
 {
     if (image.isNull())
         image = brokenImage();
     saveFullScaleFrame(m_request->databaseFileName(), image);
     sendResult(image);
     Q_EMIT completed();
 }
 
 void HandleVideoThumbnailRequestJob::saveFullScaleFrame(const DB::FileName &fileName, const QImage &image)
 {
     Utilities::saveImage(pathForRequest(fileName), image, "JPEG");
 }
 
 DB::FileName HandleVideoThumbnailRequestJob::pathForRequest(const DB::FileName &fileName)
 {
     QCryptographicHash md5(QCryptographicHash::Md5);
     md5.addData(fileName.absolute().toUtf8());
     return DB::FileName::fromRelativePath(QString::fromLatin1(".videoThumbnails/%2").arg(QString::fromUtf8(md5.result().toHex())));
 }
 
 DB::FileName HandleVideoThumbnailRequestJob::frameName(const DB::FileName &videoName, int frameNumber)
 {
     return DB::FileName::fromRelativePath(pathForRequest(videoName).relative() + QLatin1String("-") + QString::number(frameNumber));
 }
 
 void HandleVideoThumbnailRequestJob::removeFullScaleFrame(const DB::FileName &fileName)
 {
     QDir().remove(BackgroundJobs::HandleVideoThumbnailRequestJob::pathForRequest(fileName).absolute());
 }
 
 void HandleVideoThumbnailRequestJob::sendResult(QImage image)
 {
     // if ( m_request->isRequestStillValid(m_request) ) {
     image = image.scaled(QSize(m_request->width(), m_request->height()), Qt::KeepAspectRatio, Qt::SmoothTransformation);
     if (m_request->isThumbnailRequest()) {
         m_thumbnailCache->insert(m_request->databaseFileName(), image);
     }
     m_request->setLoadedOK(!image.isNull());
     m_request->client()->pixmapLoaded(m_request, image);
     //}
 }
 
 QImage HandleVideoThumbnailRequestJob::brokenImage() const
 {
     return QIcon::fromTheme(QString::fromUtf8("applications-multimedia")).pixmap(ThumbnailView::CellGeometry::preferredIconSize()).toImage();
 }
 
 } // namespace BackgroundJobs
 // vi:expandtab:tabstop=4 shiftwidth=4:
 
 #include "moc_HandleVideoThumbnailRequestJob.cpp"