如何获取视频文件的每一帧?
参考:https://blog.csdn.net/zhuoxiuwu/article/details/70879701
官方如何实现相机Api的?
参考:https://www.androidos.net.cn/android/8.0.0_r4/xref/frameworks/base/core/java/android/hardware
如何调用相机Api?
camera参考:https://juejin.im/post/5a33a5106fb9a04525782db5
camera2参考:https://www.jianshu.com/p/0ea5e201260f
camerax参考:https://juejin.im/post/5cbf2667f265da037875980a