Getting plymouth with ffmpeg

src/fileProcess/configfilemanager.cpp

@@ -573,7 +573,12 @@ void ConfigFileManager::copyMp4toCacheDir(const QString &destinationFilePath, QD
     //ffmpeg -i "111.mp4" -vframes 104 "/home/.cache/theme-build/m_time/src/plymouthTheme/%d.png"
     //FIX ME :限制条件
     QString cache = cachedir.absolutePath()+"/%d.png";
-    list<<"-i"<<destinationFilePath<<"-vframes"<<"104"<<cache;
+    list<<"-i"<<destinationFilePath
+        <<"-vf"
+        <<"scale='min(100,iw)':min'(100,ih)':force_original_aspect_ratio=decrease"
+        <<"-vframes"
+        <<"104"
+        <<cache;
 
     QProcess p;
     p.start("ffmpeg",list);
@@ -581,49 +586,14 @@ void ConfigFileManager::copyMp4toCacheDir(const QString &destinationFilePath, QD
         qWarning()<<"start get video image failed.";
     }
 
-
     if (!p.waitForFinished(40000)) {
         qWarning()<<"wait video image too long time.";
     }
     QString err=p.readAllStandardError();
-    QString read=p.readAll();
     if (err.contains("not contain any stream")) {
         qWarning()<<"get video image failed.";
     }
 
-    QDir dir(cachedir);
-     dir.setFilter(QDir::Files | QDir::NoSymLinks);
-     dir.setNameFilters(QStringList() << "*.png");
-
-     QFileInfoList fileList1 = dir.entryInfoList();
-     foreach (const QFileInfo& fileInfo, fileList1) {
-         QString fileName = fileInfo.absoluteFilePath();
-
-         QImage image(fileName);
-         if (image.isNull()) {
-             qDebug() << "Failed to load image:" << fileName;
-             continue;
-         }
-
-         // 调整图像大小为20x20像素
-         QSize newSize(100, 100);
-         QImage resizedImage = image.scaled(newSize, Qt::KeepAspectRatio, Qt::SmoothTransformation);
-
-         QByteArray byteArray;
-         QBuffer buffer(&byteArray);
-         buffer.open(QIODevice::WriteOnly);
-         if (!resizedImage.save(&buffer, "PNG", 100)) {
-             qDebug() << "Failed to resize image:" << fileName;
-             continue;
-         }
-         QString outputFileName = fileInfo.path() + "/" + fileInfo.baseName() + ".png";
-         qDebug()<<outputFileName;
-         if (!resizedImage.save(outputFileName, "PNG", 100)) {
-             qDebug() << "Failed to save image:" << outputFileName;
-             continue;
-         }
-     }
-
     QString thunbnail = cachedir.absolutePath()+"/40.png";
     emit updateThumbnail(thunbnail);
 }