Recording MP4 & Capturing JPEG by using MediaCodec API. // 本地录制Mp4，图片抓拍jpg，时间水印
Universal UVCCamera library,supporting recording,pushing,etc. // USB摄像头(UVC)视频录制和图片抓拍，支持边推流边录像
Cloud recognition for IDCard. Based on the demo of Sunmi official website, Here we add support for Mifare module of K2.
