cut video

cut 5 seconds, starting from 5 minutes, 3 seconds and 123 milliseconds.

ffmpeg -i input.mp4 -ss 00:05:03.123 -t 5 -c:v libx264 -c:a libfaac out.mp4

to gif

ffmpeg -t 5 -ss 00:00:10 -i funny.mp4 out.gif

rotate

For the transpose parameter you can pass:

0 = 90CounterCLockwise and Vertical Flip (default)

1 = 90Clockwise

2 = 90CounterClockwise

3 = 90Clockwise and Vertical Flip

ffmpeg -i in.mov -vf "transpose=1" out.mov

reverse video

ffmpeg -i inputfile.mp4 -vf reverse reversed.mp4

repeat video 4 times

for i in {1..4}; do printf "file '%s'\n" org_tlp_6553634_1545520908000.mov >> list.txt; done ffmpeg -f concat -i list.txt -c copy output.mp4