How to loop video

ffmpeg -stream_loop 3 -i in.mp4 -c copy out.mp4

-stream_loop - loops specified input streams given amount of times
3 - repeat 3 times
-i in.mp4 - input video file to loop
-c copy - do not encode/convert, only copy
out.mp4 - resulting video file

link_youtube: https://youtu.be/mOHujYrkT7M