ExecutionEnvironment env = ExecutionEnvironment.getExecutionEnvironment();
        //获取视频
        String path = "C:\\gushi.mp4";
        FileData readFile = null;
        try {
            readFile = ReadPathUtils.readFile(path);
        } catch (IOException e) {
            e.printStackTrace();
        }
        byte[] file = readFile.getBytes();
        env. ?

我想要读取视频文件，然后对此进行取帧截图等操作。我该用什么呢？