I am not able to select the settings H.264 to render my video.

I have installed Kdenlive from the Sunab repositories.

I use Ubuntu 11.04 and Kdenlive 0.8.

What do I have to do extra to get these settings?

Does this help?, could be same reason, maybe not. perhaps you already searched first before asking. ;-)

http://www.kdenlive.org/forum/solved-unsupported-video-codec-libx264-libmp3lame-rendering-lossless-hq-natty-64bit

@Yellow

Yes I searched before and installed libs but I saw no change in Kdenlive.

I just found the link you posted here and I did this: Quit Kdenlive and delete kdenliverc in ~/.kde/share/config and restart Kdenlive.
Now I see the settings!

But I have installed and uninstalled many things, so I do not know anymore which lib is the correct to install ...

You have to install at least:

Synaptic:
libavcodec-extra-52

You could rerun the config wizard in kdenlives 'Settings' menu to see if anything is missing.

From memory libavformat, libavcodec, libswscale, libavdevice, not sure how many kdenlive needs but it's a start.

Good to hear your h264 problem is solved.

The solution is:

After installation of Kdenlive 8.0 you have to install with Synaptic:

libavcodec-extra-52

A few libraries will be deinstalled and dependencies will be installed.

Then quit Kdenlive and delete kdenliverc in ~/.kde/share/config and restart Kdenlive.

Now you must see all the settings.