I'm having problems using sample_encode to do hardware (-hw flag) encoding. The problems I'm having is it takes longer time with -hw flag than without. I can also see that the CPU usage is around 50%. I have tried with h264 and both encode/decode is possible with -hw flag set. Also decode of mpeg2 looks good and it seems to be utilizing the GPU. I was expecting similar results in performance as I saw with h264 encoding hw/sw.
I'm running Windows 7 Proffessional x64 using a i7 2600K with a Intel Desktop board (DZ68DB) . My graphics driver v. is (18.104.22.1689). From what I understand it should be possible to do HW encode of mpeg2 with my setup.
I've tried sample_encode from Intel Media SDK (3.0.554.34012 Beta 4) and (22.214.171.12471).
Any ideas what could be wrong here?