Video splitter

[lighthouse]

Dear,

I'm looking for a program to cut video height and width. Simply saying I need to cut out the top 10-th part of the video. What kind of tool is available for Fedora 17?

Thank you.

[smr54]

I think avidemux does it, but I haven't used it. It can be done with ffmpeg, but it's a little tricky now, they changed the syntax, and to me, at least, the man page isn't that clear. Check this thread on ArchLinux forums, user ronnylov explains it pretty well.

https://bbs.archlinux.org/viewtopic.php?id=147104

[lighthouse]

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 )

[smr54]

Untested by me, but possibly -sameq which stands for same quality. You might also try -vcodec copy (or choose a video codec).

I'm not sure if that's typical though, I remember cropping out some subtitles--a film I bought with hard coded subs in my wife's native language, and she didn't want the subs, and I don't remember any quality loss.