Aggressively skip txfm search based on skip rd for speed 5 and 6
Instruction Count BD-Rate Loss(%)
cpu-used Reduction(%) avg.psnr ovr.psnr ssim
5 4.408 0.2644 0.2633 0.2157
6 3.356 0.2744 0.2759 0.2292
STATS_CHANGED
Change-Id: I53ca8b4b8d98e414688ecf88c44c4100e7fc02b4
diff --git a/av1/encoder/rdopt_utils.h b/av1/encoder/rdopt_utils.h
index be08190..37fbb5b 100644
--- a/av1/encoder/rdopt_utils.h
+++ b/av1/encoder/rdopt_utils.h
@@ -334,15 +334,17 @@
// Derive aggressiveness factor for gating the transform search
// Lower value indicates more aggressiveness. Be more conservative (high
// value) for (i) low quantizers (ii) regions where prediction is poor
- const int scale[5] = { INT_MAX, 4, 3, 3, 2 };
+ const int scale[6] = { INT_MAX, 4, 3, 3, 2, 2 };
const int qslope = 2 * (!is_luma_only);
int aggr_factor = 1;
- if (!is_luma_only) {
+ const int pred_qindex_thresh = (level >= 5) ? 100 : 0;
+ if (!is_luma_only && level <= 4) {
aggr_factor = AOMMAX(
1, ((MAXQ - x->qindex) * qslope + QINDEX_RANGE / 2) >> QINDEX_BITS);
}
- if (best_skip_rd >
- (x->source_variance << (num_pels_log2_lookup[bsize] + RDDIV_BITS)))
+ if ((best_skip_rd >
+ (x->source_variance << (num_pels_log2_lookup[bsize] + RDDIV_BITS))) &&
+ (x->qindex >= pred_qindex_thresh))
aggr_factor *= scale[level];
// For level setting 1, be more conservative for luma only case even when
// prediction is good
@@ -353,7 +355,7 @@
// since best_skip_rd is computed after and skip_rd is computed (with 8-bit
// prediction signals blended for WEDGE/DIFFWTD rather than 16-bit) before
// interpolation filter search
- const int luma_mul[5] = { INT_MAX, 32, 29, 20, 17 };
+ const int luma_mul[6] = { INT_MAX, 32, 29, 20, 17, 17 };
int mul_factor = is_luma_only ? luma_mul[level] : 16;
int64_t rd_thresh =
(best_skip_rd == INT64_MAX)
diff --git a/av1/encoder/speed_features.c b/av1/encoder/speed_features.c
index 8340bf3..33b898b 100644
--- a/av1/encoder/speed_features.c
+++ b/av1/encoder/speed_features.c
@@ -608,6 +608,7 @@
sf->inter_sf.disable_interinter_wedge = 1;
sf->inter_sf.prune_inter_modes_if_skippable = 1;
+ sf->inter_sf.txfm_rd_gate_level = boosted ? 0 : 5;
// TODO(any): Extend multi-winner mode processing support for inter frames
sf->winner_mode_sf.multi_winner_mode_type =
