Hello!

I have tried to do the tutorial, but I failed on this step:
ks300847:~# apt-get build-dep ffmpeg
Paketlists are read... Done
Dependency tree is built up... Done

E: Can the source package for ffmpegcvs not find
I have translated it to english.
I have searched this in google, but I got no results. How to get the source package for ffmpegcvs, and in which directory I must put it?