[Matroska-users] set framerate in mkv container for x264

[KRS]

I have a x264 file wich have a wrong frame rate (29.97fps) It should be 
read at 25fps to get normal speed, but it seems to be impossible to 
change the framerate in the x264 file.

Can I correct the frame rate using timecode in mkvmerge? How to use it 
and how to generate a timecode file?

Thanks