Commits
Jingning Han committed a4ce53f14d2
Adaptive motion control on ref and search range This commit takes a preliminary attempt to refine the motion search control. It detects the SAD associated with mv predictor per reference frame, and based on which to determine whether the encoder wants to reduce the motion search range (if the predicted mv provides fairly small SAD), or to skip the current reference frame (if there exists another ref frame that gives much smaller SAD cost). This feature is turned on in the settings of speed 1 and above. In speed 1, compression performance changed derf -0.018% yt -0.043% hd -0.045% stdhd -0.281% speed-up pedestrian_area_1080p at 4000 kbps 100 frames 199651ms -> 188846ms (5.5% speed-up) blue_sky_1080p at 6000 kbps 443531ms -> 415239ms (6.3% speed-up) In speed 2, compression performance changed derf -0.026% yt -0.090% hd -0.055% stdhd -0.210% speed-up pedstrian 113949ms -> 108855ms (4.5% speed-up) blue_sky 271057ms -> 257322ms (5% speed-up) Change-Id: I1b74ea28278c94fea329d971d706d573983d810d