//
// Source code recreated from a .class file by IntelliJ IDEA
// (powered by FernFlower decompiler)
//

package org.jeecg.modules.doc.vo;

import java.awt.image.BufferedImage;
import java.awt.image.ImageObserver;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import javax.imageio.ImageIO;
import org.bytedeco.javacv.FFmpegFrameGrabber;
import org.bytedeco.javacv.Frame;
import org.bytedeco.javacv.Java2DFrameConverter;
import org.jeecg.modules.doc.exception.QiwenException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class VideoOperation {
    private static final Logger log = LoggerFactory.getLogger(VideoOperation.class);

    public VideoOperation() {
    }

    public static InputStream thumbnailsImage(InputStream inputStream, File outFile, int width, int height) throws IOException {
        if (inputStream == null) {
            throw new QiwenException(999999, "Get the video preview. The input stream is null.");
        } else {
            try {
                FFmpegFrameGrabber ff = new FFmpegFrameGrabber(inputStream);
                ff.start();
                int videoLength = ff.getLengthInFrames();
                Frame f = null;

                for(int i = 0; i < videoLength; ++i) {
                    f = ff.grabFrame();
                    if (i > 20 && f.image != null) {
                        break;
                    }
                }

                int owidth = f.imageWidth;
                int oheight = f.imageHeight;
                height = (int)((double)width / (double)owidth * (double)oheight);
                Java2DFrameConverter converter = new Java2DFrameConverter();
                BufferedImage fecthedImage = converter.getBufferedImage(f);
                BufferedImage bi = new BufferedImage(width, height, 5);
                bi.getGraphics().drawImage(fecthedImage.getScaledInstance(width, height, 4), 0, 0, (ImageObserver)null);
                File saveDir = outFile.getParentFile().getAbsoluteFile();
                if (!saveDir.exists()) {
                    saveDir.mkdirs();
                }

                ImageIO.write(bi, "jpg", outFile);
                ff.stop();
            } catch (IOException var14) {
                var14.printStackTrace();
            } catch (Exception var15) {
                String errorMessage = var15.getMessage();
                if (errorMessage.contains("AWTError")) {
                    log.info(var15.getMessage());
                }

                log.error(var15.getMessage());
            }

            return new FileInputStream(outFile);
        }
    }
}