CUDA/OpenCL h264 encoder

Implement a CUDA or OpenCL (ideal) video encoder based on open source x264 package (essentially regutting the most expensive functions of motion estimation, dct, etc for optimal performance). B-frame support can be considered an additional deliverable and bid. Must be on par performance and quality wise with CyberLink's Espresso CUDA encoder or MediaCoder's CUDA encoder [login to view URL] Thanks!