Java 获取 视频 时长

<dependency>
    <groupId>org.bytedeco</groupId>
    <artifactId>javacv-platform</artifactId>
    <version>1.5.7</version> 
</dependency>

首先在 pom 中引入包

根据以下工具类，直接调用传入文件路径即可

public static Integer getMp4Seconds(String filePaths){
        String filePath = filePaths; // 替换为你的MP4文件路径
        int seconds = 0;
        FFmpegFrameGrabber grabber = null;
        try {
            grabber = new FFmpegFrameGrabber(filePath);
            grabber.start();
            //这一步获取的是微妙，除以 1000000 获取保留整数部位的秒
            seconds = Math.toIntExact(grabber.getLengthInTime())/1000000;
            System.out.println("Duration of the MP4 file: " + seconds + " s");
            return seconds; // 返回秒
        } catch (Exception e) {
            e.printStackTrace();
            return -1;
        } finally {
            if (grabber != null) {
                try {
                    grabber.stop();
                } catch (Exception ignored) {
                }
            }
        }
    }