tree 7baf5c133ca447551f356672366b2d82e133bb43
parent 75d5d07f49857f8c488f04fae2a50cd289e554e5
author Yunqing Wang <yunqingwang@google.com> 1629417091 -0700
committer Yunqing Wang <yunqingwang@google.com> 1629430108 +0000

RTC: Reduce number of modes going into for-loop

Currently, only single reference prediction is used in real time
speed 5 & 6. This CL reduces the number of inter modes that go
into the for-loop to eliminate the unneeded branching operations
and initialization. This doesn't change any encoder result.
Later, if we decide to use compound modes in real time, similar
approach should be used. E.g. modify av1_default_mode_order table.
Borg results:
            avg_psnr:  ovr_psnr:  ssim:  speedup:
RT speed 5:
rtc:         0.000      0.000     0.000   2.263
rtc_derf:    0.000      0.000     0.000   2.877
RT speed 6:
rtc:         0.000      0.000     0.000   2.523
rtc_derf:    0.000      0.000     0.000   3.648

Change-Id: Ibf1938f3b7c45b140982ccfa4297500536b504df