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Use non-zero mode threshold for NEARESTMV modes

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This commit makes the encoder to use non-zero mode threshold for
NEARESTMV modes. The runtime for test clips of speed 3 is reduced
by about 1%.

pedestrian 1080p 2000 kbps, 143239 ms -> 141989 ms
bus CIF 1000 kbps, 7835 ms -> 7749 ms

The compression performance change is about -0.02% for both derf
and stdhd.

Change-Id: Ib71808922c41ae2997100cb7c561f68dcebfa08e
This commit is contained in:
Jingning Han 2014-09-16 09:49:17 -07:00
parent 252822e81c
commit 56fa3ab886
1 changed files with 9 additions and 3 deletions
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6
vp9/encoder/vp9_rd.c
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@ -457,9 +457,15 @@ void vp9_set_rd_speed_thresholds(VP9_COMP *cpi) {
for (i = 0; i < MAX_MODES; ++i)
rd->thresh_mult[i] = cpi->oxcf.mode == BEST ? -500 : 0;
if (sf->adaptive_rd_thresh) {
rd->thresh_mult[THR_NEARESTMV] = 300;
rd->thresh_mult[THR_NEARESTG] = 300;
rd->thresh_mult[THR_NEARESTA] = 300;
} else {
rd->thresh_mult[THR_NEARESTMV] = 0;
rd->thresh_mult[THR_NEARESTG] = 0;
rd->thresh_mult[THR_NEARESTA] = 0;
}
rd->thresh_mult[THR_DC] += 1000;