Remove a section from the middle of a video

ffmpeg-remove-a-section-from-the-middle-of-a-video.sh

# cut from the beginning of the video to the beginning of the unwanted part
ffmpeg.exe -ss 00:00:00.000 -t 00:19:00.000 -i original.mp4 -c:v copy -c:a copy part1.mp4

# cut from the ending of the unwanted part to the end of the video
ffmpeg.exe -ss 00:20:28.000 -t 01:26:25.000 -i original.mp4 -c:v copy -c:a copy part2.mp4

# create a list file
touch list.txt
echo file part1.mp4 > list.txt
echo file part2.mp4 >> list.txt

# concat the two parts, then you get the final.mp4 video
ffmpeg.exe -f concat -i list.txt -c copy final.mp4