commit 0161a932666af0d3a129ebd6b102c49b5476378e
author hui su <huisu@google.com> Tue Jan 24 14:12:11 2017 -0800
committer Hui Su <huisu@google.com> Wed Jan 25 22:45:22 2017 +0000
tree ee003be8ea79193e89ce1e340e206a356b296c7b
parent 9a416f572101c40a9881c3d2887577793b2de9bd

Cleanup for the entropy experiment

Minor performance changes
0.03% better on lowres
0.01% better on midres

Change-Id: I7a7168f3a2a4d17a03353841a416eff6edf1e241

av1/encoder/encodeframe.c

diff --git a/av1/encoder/encodeframe.c b/av1/encoder/encodeframe.c
index 3fde419..6264d4c 100644
--- a/av1/encoder/encodeframe.c
+++ b/av1/encoder/encodeframe.c
@@ -4641,10 +4641,9 @@
 #if CONFIG_ENTROPY
   if (cm->do_subframe_update &&
       cm->refresh_frame_context == REFRESH_FRAME_CONTEXT_BACKWARD) {
-    if ((mi_row + MI_SIZE) %
-                (MI_SIZE *
-                 AOMMAX(cm->mi_rows / MI_SIZE / COEF_PROBS_BUFS, 1)) ==
-            0 &&
+    const int mi_rows_per_update =
+        MI_SIZE * AOMMAX(cm->mi_rows / MI_SIZE / COEF_PROBS_BUFS, 1);
+    if ((mi_row + MI_SIZE) % mi_rows_per_update == 0 &&
         mi_row + MI_SIZE < cm->mi_rows &&
         cm->coef_probs_update_idx < COEF_PROBS_BUFS - 1) {
       TX_SIZE t;