tree 07ff3313619390df6f0d55ae0420deb3fdcc77f3
parent 3161af68103b85f7d555de23ebe222039ba3f1d8
author Jean-Marc Valin <jmvalin@mozilla.com> 1471895229 -0400
committer Jean-Marc Valin <jvalin@mozilla.com> 1471964571 +0000

Use a quantizer-based threshold rather than full search for deringing

objective-1-short results (with deringing enabled):
PSNR YCbCr:      0.08%      0.03%      0.11%
   PSNRHVS:      0.06%
      SSIM:      0.12%
    MSSSIM:      0.08%
 CIEDE2000:      0.05%

Change-Id: Ifcfc42c14c33650dcf879c4d0ddd8688d4d07da1