How to make a video from thousands of pictures?

Question

Video

Good day.
There are 2500 pictures, of which you need to make a video, where 1 picture will be the 1st frame.
The output video should be 30 fps, mp4 format, the resolution is the same as the images.
All images are of the same format and resolution.
I work under Windows.

Answer 1

VideoMach allows you to merge frames into videos, and vice
versa gromada.com/videomach

Answer 2

Good evening.
Remove 'form' from "Yii::$app->request->post('form')"
And about ajax, do as you are advised. Stick Ajax later, after the data starts to be saved.