Flutter/Dart: Find two video segments and merge them into a single valid video file?

Question

I have two video files on my iPhone. Is it possible, using Dart, to find two specific 10-second segments in each, and merge them both into a valid 20 second video file?

Answer 1

Ok, so there's a FFMpeg plugin for flutter that allows you to do all of this.

https://github.com/tanersener/flutter-ffmpeg

Cutting a 15 second video segment starting at second 20:

ffmpeg -i Funny.mkv -ss 00:00:20 -codec copy -t 15  Funny_cut.mkv

Merging a list of videos that is stored in videos.txt:

ffmpeg -f concat -i videos.txt -c copy Funny_join.mkv

For more about FFMpeg:

https://www.poftut.com/ffmpeg-command-tutorial-examples-video-audio/