Java獲取文件中視頻的時長

    public void ReadVideoTime(String path) {
        long sum = 0;
        long num = 0;
        File source = new File(path[i]);
        Encoder encoder = new Encoder();
        File[] file = source.listFiles();

        for (File file2 : file) {
            try {
                MultimediaInfo m = encoder.getInfo(file2);
                long ls = m.getDuration() / 1000;// ls是獲取到的秒數
                sum += ls;
                num++;
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
     
        double sum1 = (double) sum;
        double sum2 = sum1 / 3600;// 轉換成為了小時
        System.out.println(sum2);
        System.out.println(num);
    }