tree 1cd79e51b72351b94e81f6b3cb8d75d0c9bdc000
parent ce17de84d5ebf21ce632f222206f18a7510171f0
author Yunqing Wang <yunqingwang@google.com> 1633576646 -0700
committer Yunqing Wang <yunqingwang@google.com> 1633976875 +0000

rtc: Improve gf length decision

In real time mode, intended to use longer gf intervals.
Forced the golden frame refresh for a high motion frame.
This change gave good coding gains, and made the encode
slightly faster.

Borg test results at rt speed 5 and 7.
          avg_psnr:  ovr_psnr:  ssim:  encoder speed:
speed 5:
rtc_derf:  -0.628     -0.675   -0.942     0.767
rtc:       -0.347     -0.377   -0.439     0.693
speed 7:
rtc_derf:  -0.762     -0.772   -1.066     0.536
rtc:       -0.540     -0.607   -0.700     0.338

STATS_CHANGED

Change-Id: I3230da4ed3ae3e7be102bcb26ccfac884b3ec506