获取视频缩略图

2020-07-22

获取视频缩略图

所需依赖

<!-- javacv start -->
		<dependency>
			<groupId>org.bytedeco</groupId>
			<artifactId>javacpp</artifactId>
			<version>1.4.1</version>
		</dependency>
		<dependency>
			<groupId>org.bytedeco</groupId>
			<artifactId>javacv</artifactId>
			<version>1.4.1</version>
		</dependency>
		<dependency>
			<groupId>org.bytedeco.javacpp-presets</groupId>
			<artifactId>opencv-platform</artifactId>
			<version>3.4.1-1.4.1</version>
		</dependency>
		<dependency>
			<groupId>org.bytedeco.javacpp-presets</groupId>
			<artifactId>ffmpeg-platform</artifactId>
			<version>3.4.2-1.4.1</version>
		</dependency>
		<!-- javacv end -->

		<dependency>
			<groupId>org.bytedeco.javacpp-presets</groupId>
			<artifactId>opencv-platform</artifactId>
			<version>3.4.1-1.4.1</version>
		</dependency>

工具类

package com.superair.common.utils.file;

import org.bytedeco.javacv.FFmpegFrameGrabber;
import org.bytedeco.javacv.Frame;
import org.bytedeco.javacv.Java2DFrameConverter;

import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.awt.image.RenderedImage;
import java.io.File;

/**
 *获取视频缩略图
 *@Author Administrator
 *@Date 2020/7/22 9:29
 *@Vision 1.0
 **/
public class VideoUtil {
    /**
     *  获取视频缩略图
     * @param tempPath 缩略图保存路径
     * @param filePath 视频路径
     * @return java.lang.String
     */

    public static String getTempPath(String tempPath, String filePath) throws Exception {
//        String tempPath="    ";//保存的目标路径
        File targetFile = new File(tempPath);
        if (!targetFile.getParentFile().exists()) {
            targetFile.getParentFile().mkdirs();
        }
        File file2 = new File(filePath);
        if (file2.exists()) {
//            log.info("文件存在，路径正确！");
            FFmpegFrameGrabber ff = new FFmpegFrameGrabber(file2);
            ff.start();
            int ftp = ff.getLengthInFrames();
            int flag = 0;
            Frame frame = null;
            while (flag <= ftp) {
                //获取帧
                frame = ff.grabImage();
                //过滤前3帧，避免出现全黑图片
                if ((flag > 5) && (frame != null)) {
                    break;
                }
                flag++;
            }
            ImageIO.write(FrameToBufferedImage(frame), "jpg", targetFile);
            ff.close();
            ff.stop();
        }
        return null;
    }

    private static RenderedImage FrameToBufferedImage(Frame frame) {
        //创建BufferedImage对象
        Java2DFrameConverter converter = new Java2DFrameConverter();
        BufferedImage bufferedImage = converter.getBufferedImage(frame);
        return bufferedImage;
    }

    public static void main(String[] args) {
        try {
//            getTempPath("http://jyt.fty.pw:8080/videos/guoyifang/a2966518-03dd-4a31-b05b-5c52db6baf73.mp4", "D:\\test.jpg");
            getTempPath("D:/test1.jpg", "D:/6 - What If I Want to Move Faster.mp4");
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
}