简单的视频剪辑处理，可添加水印（设置显示位置及大小），添加片头、片尾，可通过第三方调用，工作中使用了java进行调用，http请求即可(Simple video clip processing, you can add watermark (set the display location and size), add a head, tail, can be called by a third party, work using java to call, HTTP request can b