玉林网站设计电子商务营销的概念

• 引言

我们在日常工作中经常会遇到上传视频，而产品还会要求截取视频某一帧作为封面展示，对于这种情况新手还是比较头疼的，那我们直接世界上最简单的实现方案，必须是最简单，多一句啰嗦都不准点赞。

• How to do

1.提前引入包

        <!--视频多媒体工具包 包含 FFmpeg、OpenCV--><dependency><groupId>org.bytedeco</groupId><artifactId>javacv-platform</artifactId><version>1.5.3</version></dependency><!--hutool万能工具包--><dependency><groupId>cn.hutool</groupId><artifactId>hutool-all</artifactId><version>5.4.4</version></dependency>

2.逻辑代码实现

    public static void main(String[] args) throws IOException, InterruptedException {Image image = cutScreenshot("C:/Users/Administrator/Desktop/xxx.flv");String jpg = ImgUtil.toBase64(image, "jpg");System.out.println(jpg);}/*** 截屏视频最后一帧(有效图片)** @param localPath 本地视频地址* @return*/public static Image cutScreenshot(String localPath) throws FrameGrabber.Exception {FFmpegFrameGrabber grabber = FFmpegFrameGrabber.createDefault(localPath);grabber.start();
//            设置帧数grabber.setFrameNumber(grabber.getLengthInFrames() - 1);
//            获取当前有效图片(如果没有图片返回的是null，后期在做优化)Frame frame = grabber.grabImage();//视频旋转度String rotate = grabber.getVideoMetadata("rotate");Java2DFrameConverter converter = new Java2DFrameConverter();//绘制图片BufferedImage bufferedImage = converter.getBufferedImage(frame);if (rotate != null) {// 旋转图片bufferedImage = rotate(bufferedImage, Integer.parseInt(rotate));}log.info("视频的宽:{}", bufferedImage.getWidth());log.info("视频的高:{}", bufferedImage.getHeight());log.info("视频的旋转度：{}", rotate);log.info("视频的格式：{}", grabber.getFormat());log.info("此视频时长（s/秒）：{}", grabber.getLengthInTime() / (1000 * 1000));return bufferedImage;}