How to create a video file using c++?

Question

C++ / C#

I already asked a similar question, but it was broader and more abstract:
How do video editors work?
Now I would like to know more specifically.
What tools and libraries are there to draw frames for video using C++? What tools and libraries exist to join frames into a video file using C++?

Answer 1

It's not clear what you mean by "draw frames".
Do you want a graphic editor?
IMHO, your problem is that you read a lot but don't write anything. Don't try to put it into practice. And if you remain a theoretician, you will not be able to ask the right questions.
Read about video codecs (x264, mpeg) and containers (mkv, avi, etc.)

Answer 2

See opencv, there is a lot of stuff there