Split audio and video

http://askubuntu.com/questions/56022/what-to-use-to-quickly-cut-audio-video

-tt

nice -n 19 ffmpeg -i input.avi -vcodec copy -acodec copy -ss 00:00:00 -to 00:30:00 output1.avi

00:00:00 from 

to 00:30:00

-t in delta time

-to 01:00:12 uts absolote time

nice -n 19 ffmpeg -i input.avi -vcodec copy -acodec copy -ss 00:00:00 -t 00:30:00 output1.avi

-t duration (output) Stop writing the output after its duration reaches duration. duration may be a number in seconds, or in hh:mm:ss[.xxx] form.

Calculate duration between two dates with time http://www.timeanddate.com/date/timeduration.html

ffmpeg extract picture from video

http://linuxers.org/tutorial/how-extract-images-video-using-ffmpeg

ffmpeg -i inputfile.avi  -r 1 -vframes 120 -ss  01:30:14 image-%d.jpeg

ffmpeg reduce video size

וידאו split cut