commit 57dacd0c601451a5fca2993d0c691ee1d9ef2401
author Deepa K G <deepa.kg@ittiam.com> Tue Sep 04 15:34:19 2018 +0530
committer Yunqing Wang <yunqingwang@google.com> Tue Sep 04 21:26:06 2018 +0000
tree 7e71299fa76562fdd0d4298910fda96306e3571f
parent 738a9ae5a798a3c2483a9f4517837a6e4c25c719

Early exit based on partial mode rate in handle_inter_mode

If the rd cost based on the partial mode rate is greater than
ref_best_rd, skip the evaluations in handle_inter_mode function.
When tested for 10 frames of parkrun content for speed=1 preset,
~2% encode time reduction is seen.

Change-Id: Icec31c24e16a6d2b77f537e3f07cce4e1bd9fb4b

av1/encoder/rdopt.c

diff --git a/av1/encoder/rdopt.c b/av1/encoder/rdopt.c
index a14cb6c0..4c419be 100644
--- a/av1/encoder/rdopt.c
+++ b/av1/encoder/rdopt.c
@@ -9252,6 +9252,11 @@
     rd_stats->rate +=
         get_drl_cost(mbmi, mbmi_ext, x->drl_mode_cost0, ref_frame_type);
 
+    if (RDCOST(x->rdmult, rd_stats->rate, 0) > ref_best_rd &&
+        mbmi->mode != NEARESTMV && mbmi->mode != NEAREST_NEARESTMV) {
+      continue;
+    }
+
     int64_t best_rd2 = INT64_MAX;
 
     const RD_STATS backup_rd_stats = *rd_stats;