What I'd like to achieve is getting the same effect as I get with (assuming 1.7x speed up) :
mplayer -af scaletempo -speed 1.7 myvideo.mp4
This command gives me exactly what I want, but I need to save the result in file somehow.
What I don't want to get is this:
mplayer -vf scale -speed 1.7 myvideo.mp4
I need this to be done in file (file has to be recoded) because I have to play it outside Linux box.
CLI is preferable, because I want to make it in script. Googled around a lot and found lots of suggestions - ffmpeg, mencoder and many funny exotic uncompilable tools, nothing gives me the exact result. Actually almost nothing of this works (I guess it worked in sometime, long long ago).
Unfortunately I upgraded and use Ubuntu 13.04 and it seems that almost all solutions do not work in this version ;(