How to create video files from several folders with photos in ffmpeg for each folder?

Question

fmpeg

Please tell me how you can create a video from several folders with photos with division into each folder.
I try the code:

@echo off
for /r %%i in (*.mp4) do (ffmpeg -f image2 -r 3 -i "%%~dpni_img%%03d.jpg" -y -an -r 24 -vcodec mpeg4 out.avi )

It seems to collect, but on each folder it overwrites out.avi

Answer 1

I use Windows os
1) Create folder Your_files and folder Result in directory with ffmpeg.exe 2) Put png files with similar name out001.png out002.png out003.png in folder Your_files ...

for %%a in ("Your_files\out%%03d.png") do ffmpeg -y -f image2 -r 3 -i "%%a" "Result\video.mp4"