ffmpeg -i video.mp4 -ss 00:00:00 -t 00:10:00 -c copy 01.mp4
ffmpeg -i video.mp4 -ss 00:10:00 -t 00:10:00 -c copy 02.mp4
ffmpeg -i video.mp4 -ss 00:20:00 -t 00:10:00 -c copy 03.mp4

$ ffmpeg -i input.avi -f segment -segment_times 10,20,40,50,90,120,180
      -vcodec copy output02%d.avi

commit 2058b52cf8a4eea9bf046f72b98e89fe9b36d3e3
Author: Stefano Sabatini <stefasab@gmail.com>
Date:   Sat Jan 28 22:36:38 2012 +0100

    lavf/segment: add -segment_times option

    Address trac ticket #1504.

$ ./ffmpeg --help |& grep segment
$