[FFmpeg-user] x264 with 4:2:2 colorspace

[betonpfeiler]

Hey!

I'm trying to encode a file to an AVC-intra like codec. For testing I'm 
using the following command:

ffmpeg -i test.avi' -vcodec libx264 -pix_fmt yuv422p -vpre fast -b 100M 
-intra 'avcintra.mp4'

The problem is, I can't get ffmpeg to keep the 4:2:2 pix format, it 
always falls back to 4:2:0 on the High-Level. How can I set ffmpeg to 
the high4:2:2-Level?

Thanks!
J