Thank you, I can indeed crop with ffmpeg.
I'm using this command (to crop 40 px from top and 20px from left and right):
ffmpeg -i a.avi -vf crop=in_w-40:in_h-40:0:40 b.avi
Now an interesting question - after I have cropped the quality of sound (mp3) is the same (supercool), while the quality of video is too bad.
Do you know how to preserve the quality of video?
---------- Post added at 10:54 PM ---------- Previous post was at 10:37 PM ----------
Well, alright, I'm fine with that quality )