- trim a video
ffmpeg -ss 00:01:00 -to 00:02:00 -i input.mp4 -c copy output.mp4
- cut video from 1:34 to 1:36
ffmpeg -i input.mp4 -filter_complex "[0:v]trim=0:94,setpts=PTS-STARTPTS[clip1]; [0:v]trim=94:96,setpts=PTS-STARTPTS[clip2]; [0:v]trim=96,setpts=PTS-STARTPTS[clip3]; [clip1][clip3]concat=n=2:v=1:a=0[output]" -map "[output]" output.mp4