Also I don't know why using this "-i vidoo.mp4 -filter:v crop=720:720:0:0 -c:a copy vidoosqared.mp4" command doesn not output what I expect it to. So let me explain what I want to do. Vidoo.mp4 is a video file 720x1280 (portait rotated) (aka in metadata i have 270 rotation). What I basically want to do is to maje this video square, 720x720, but I want the top part to remain after cropping. The problem is that by running this command, vidoosquared.mp4 is actually the bottom part of the video. However, if I run the same command inside ubuntu terminal with ffmpeg 2.8, I get the top part of vidoo.mp4.
The docs (http://ffmpeg.org/ffmpeg-filters.html#crop
) says clearly that this command should get me the top part of the video. Thank you in adivce, and sorry for wasting your precious time.