//
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// Source code recreated from a .class file by IntelliJ IDEA
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// (powered by FernFlower decompiler)
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//
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package org.jeecg.modules.doc.vo;
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import java.awt.image.BufferedImage;
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import java.awt.image.ImageObserver;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.IOException;
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import java.io.InputStream;
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import javax.imageio.ImageIO;
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import org.bytedeco.javacv.FFmpegFrameGrabber;
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import org.bytedeco.javacv.Frame;
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import org.bytedeco.javacv.Java2DFrameConverter;
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import org.jeecg.modules.doc.exception.QiwenException;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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public class VideoOperation {
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private static final Logger log = LoggerFactory.getLogger(VideoOperation.class);
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public VideoOperation() {
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}
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public static InputStream thumbnailsImage(InputStream inputStream, File outFile, int width, int height) throws IOException {
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if (inputStream == null) {
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throw new QiwenException(999999, "Get the video preview. The input stream is null.");
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} else {
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try {
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FFmpegFrameGrabber ff = new FFmpegFrameGrabber(inputStream);
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ff.start();
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int videoLength = ff.getLengthInFrames();
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Frame f = null;
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for(int i = 0; i < videoLength; ++i) {
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f = ff.grabFrame();
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if (i > 20 && f.image != null) {
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break;
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}
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}
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int owidth = f.imageWidth;
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int oheight = f.imageHeight;
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height = (int)((double)width / (double)owidth * (double)oheight);
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Java2DFrameConverter converter = new Java2DFrameConverter();
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BufferedImage fecthedImage = converter.getBufferedImage(f);
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BufferedImage bi = new BufferedImage(width, height, 5);
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bi.getGraphics().drawImage(fecthedImage.getScaledInstance(width, height, 4), 0, 0, (ImageObserver)null);
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File saveDir = outFile.getParentFile().getAbsoluteFile();
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if (!saveDir.exists()) {
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saveDir.mkdirs();
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}
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ImageIO.write(bi, "jpg", outFile);
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ff.stop();
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} catch (IOException var14) {
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var14.printStackTrace();
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} catch (Exception var15) {
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String errorMessage = var15.getMessage();
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if (errorMessage.contains("AWTError")) {
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log.info(var15.getMessage());
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}
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log.error(var15.getMessage());
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}
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return new FileInputStream(outFile);
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}
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}
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}
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