This project is used for processing the videos downloaded
from mobile (Andriod) app of the streaming platform named Bilibili,
which are in the form of separated audio and video files
during structured by the unreadable-by-humans internal unique number -- AVID,
by binding the divided things and rename them
into a human-friendly construction like User\Post\Episode.
The product of this project move a file below a folder named 'exam'
by changing its path to 'exam[watched]' but all other directory structure not modified.
This project could find which timepoint one capture comes from of several videos.