GPU H.264 compression

I am looking for documentation to use GPU possibilities with a Core I5-4402E with an Intel® HD Graphics 4600.

I am trying to use GPU possibilities to compress YUY2 video flow in H.264, and I would like to if it is possible with the GPU of the motherboard I use (this mother board integrate CPU and GPU describe above and a intel QM87 Chipset)

We operate with a Linux 3.13.0-24-generic #47-Ubuntu.

Thanks for your help.