tree ebb72fa697ebd35cca79a5101153385de672be1e
parent 6a22a039dddd01d45c4f2dfb7693fe13ae0a75d0
author Yunqing Wang <yunqingwang@google.com> 1629850406 -0700
committer Yunqing Wang <yunqingwang@google.com> 1629914167 +0000

rtc: Optimize rd threshold update

Optimized rd threshold update in real time mode. This sped up
rtc encoder without any quality loss. This wouldn't cause
changes for good quality mode encoding. Rtc borg test results.
          avg_psnr:  ovr_psnr:	ssim:  speedup:
speed 5
rtc_derf:  0.000      0.000     0.000   2.224
rtc:       0.000      0.000     0.000   1.718
speed 6
rtc_derf:  0.000      0.000     0.000   2.870
rtc:       0.000      0.000     0.000   1.995

Change-Id: I00293eb075cdbacf7d27eb4d8a449cf8e813597d