mp4utils

Python 2.7/3.5+ powered ffmpeg utilities. You need to have ffmpeg installed separately.

Example: extract from start to 00:11:44

% python mp4_cut.py -e 11:44  -i inputfile.mp4 -o outputfile.mp4

Note that you don't have to use the leading zeros for the hours. The general call is the following:

% python mp4_cut.py -s [hh]:mm:ss -e [hh]:mm:ss -i inputfile.mp4  -o outputfile.mp4

Using your own inputfile and outputfile.

% python mp4_cut.py -s 15:00 -e 17:34  -i inputfile.mp4 -o outputfile.mp4

You can also take the complement of the selected slice by using the --invert flag

% python mp4_cut.py --invert -s 15:00 -e 17:34  -i inputfile.mp4 -o outputfile.mp4

The two complementary parts are joined to make the output file.