# HG changeset patch
# User Ximing Cheng <[email protected]>
# Date 1498668227 -28800
# Thu Jun 29 00:43:47 2017 +0800
# Node ID 0bb8e464147ac932c74321663216214969a079ac
# Parent fa076d29d6191699e314484a94dcae472e9c102a
sao: remove duplicate calculation on BO cost
diff -r fa076d29d619 -r 0bb8e464147a source/encoder/sao.cpp
--- a/source/encoder/sao.cpp Tue Jun 27 16:41:11 2017 +0530
+++ b/source/encoder/sao.cpp Thu Jun 29 00:43:47 2017 +0800
@@ -1553,14 +1553,17 @@
}
// Estimate Best Position
- int64_t bestRDCostBO = MAX_INT64;
int32_t bestClassBO = 0;
+ int64_t currentRDCost = costClasses[0];
+ currentRDCost += costClasses[1];
+ currentRDCost += costClasses[2];
+ currentRDCost += costClasses[3];
+ int64_t bestRDCostBO = currentRDCost;
- for (int i = 0; i < MAX_NUM_SAO_CLASS - SAO_NUM_OFFSET + 1; i++)
+ for (int i = 1; i < MAX_NUM_SAO_CLASS - SAO_NUM_OFFSET + 1; i++)
{
- int64_t currentRDCost = 0;
- for (int j = i; j < i + SAO_NUM_OFFSET; j++)
- currentRDCost += costClasses[j];
+ currentRDCost -= costClasses[i - 1];
+ currentRDCost += costClasses[i + 3];
if (currentRDCost < bestRDCostBO)
{
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