How to edit video automatically?

Question

Video processing

There is a task of video editing in automatic mode. Add a picture at a certain moment, or insert sound, text, whatever ..
How can this miracle be realized? What libraries do you recommend.

Answer 1

ffmpeg will work, but you can look here if you find something interesting

Answer 2

Here is a resource
On the canvas, you can do anything with the video html5doctor.com/video-canvas-magic like
this
.
you can add anything to the canvas