Fix overflow in calculating highbd SSIM
Example internal stats
Before the fix:
Bitrate AVGPsnr GLBPsnr AVPsnrP GLPsnrP VPXSSIM VPSSIMP FASTSIM PSNRHVS WstPsnr WstSsim WstFast WstHVS AVPsnrY APsnrCb APsnrCr Block WstBlck Consist WstCons Time RcErr AbsErr
153.39 37.131 36.420 37.151 36.437 716.077 817.445 10.422 34.347 32.980 0.916 9.281 30.208 36.024 41.830 40.581 0.000 0.000 100.000 100.000 55006 2.26 2.26
No mismatch detected in recon buffers
After the fix:
Bitrate AVGPsnr GLBPsnr AVPsnrP GLPsnrP VPXSSIM VPSSIMP FASTSIM PSNRHVS WstPsnr WstSsim WstFast WstHVS AVPsnrY APsnrCb APsnrCr Block WstBlck Consist WstCons Time RcErr AbsErr
153.39 37.131 36.420 37.151 36.437 69.808 70.023 10.422 34.347 32.980 0.910 9.281 30.208 36.024 41.830 40.581 0.000 0.000 100.000 100.000 55067 2.26 2.26
No mismatch detected in recon buffers
Change-Id: I820abc498c1543548f193874046582b50afd0238
2 files changed
