I am new to Python. Now I have 1.mp3 file and 1.mp4 file.
The mp3 file is short and lasts 1s. The path of mp3 is C:/1.mp3 The mp4 file is longer and lasts 20s. The path of mp4 is C:/1.mp4
I want to insert the 1.mp3 to the 1.mp4 at 5s and 10s
How can I do it? Thank you all in advance