hardware motion estimation?

[Guest]

I'm looking for the ability to extract coarse motion estimation from the h.264 encoder. These vectors are calculated as part of the compression algorthm and should be done on the hardware in real time - just a matter of extracting them.

 

This extraction is done on the Raspberry Pi with "raspivid -x output". It is also exposed in picamera.

 

Does anyone know if there is a similar capability to extract the motion vectors? If not, how one might go about doing this in python/c++?

 

thanks,

 

philip