How to download streaming video from the application on android?

Question

Android

Xiaomi Redmi 3s device. The video is loaded like on YouTube, but there is no way to force the quality, and therefore, even with a good and stable connection, it jumps from 480 to 240 and back + if you close the application, it does not remember where the viewing was completed, and therefore every time you have to search the place where I finished watching, and the video is 6-8 hours long. Is there a way to upload videos from the app?