Speedup a Video on linux

Question

I dont want to use player like vlc to speedup the playback. I want to actually speedup playback in the original file.

Its like I want video to be played 2 times faster.

Answer 1

mencoder has a -speed option you can use, e.g. -speed 2 to double the speed. It's described in the man page. Example:

mencoder -speed 2 -o output.avi -ovc lavc input.avi

Answer 2

Kdenlive is a video editor for KDE that also can do it and even has a GUI.