this is a mp4 tool which helps you split a mp4 file into many
usage:
python .\split_mp4_tool.py "C:\ Users\ Downloads\123.mp4" -sp 240 split 123.mp4 every 240 seconds
python .\split_mp4_tool.py "C:\ Users\ Downloads\123.mp4" -bt 0:39:34 0:46:41 get mp4 between 0:39:34 0:46:41 from 123.mp4
python .\split_mp4_tool.py "C:\ Users\ Downloads\123_nnn.mp4" -wav
python .\split_mp4_tool.py "C:\ Users\ Downloads\123_nnn.wav" -txtt send 123.nnn.wav to ecognize_google
python .\mp4_tool.py "C:\Users\Downloads\【科管院talk】我的人_3600.mp4" - generate a louder wav from 我的人_3600.mp4