Unlock capture framerate

[Davide Perini]

Hi all,
as always thanks for the wonderful project.

I have a pipeline like this:
video/x-raw,pixel-aspect-ratio=1/1,use-damage=0,sync=false,framerate=60/1,

and gstreamer capture at 60FPS, is there a way to say gstreamer to 
unlock the framerate?

if I remove the "framerate=60/1," part it capture at 30 FPS.

Thanks
Davide