Ffmpeg Combine concatenate and filter command into one
Basic syntax is
ffmpeg -f concat -safe 0 -i mylist.txt -vf trim=13:58 OUTPUT
Also each videos should be able to have their own filters.
Not possible, as such. You can't directly address the concat elements individually.
But if you know the duration of each video, you can employ trim filters to 'split' your input into individual constituents and then apply filters to those child streams. However, this is a convoluted and inefficient way to do this. Better to process each video individually.