hi I am trying to write a Python program that is trying to first edit different videos separately under the heading “intro” “story” and “byte” with the help of FFmpeg and Python subprocess module and then concatenate them in the function named “bind”. At first, I encountered this “Non-monotonic DTS in output stream” then i reencoded the input files before concatenating them but i am still getting this error

We have a software where we capture the stream from the camera connected to the laptop or device using ffmpeg python,

I have a ffmpeg-python program that puts subtitles into a video, pseudocode below:

When I run it I think there is an error with the subtitle path, but I can’t solve it.

I save the last frame to image when I create a video, then I convert image to 10 seconds video and put countdown on it, at last, merge this two videos. I can also use video to countdown but that start from first frame, how can I countdown at last frame?

I can slide 30 images from left to center and countdown 10 seconds, then keep slide to left…, but run this script more than hours…