From 4eb1380d7be759ce79b6e697a2bec6e90fdd5efb Mon Sep 17 00:00:00 2001
From: Jean-Marc Valin <jmvalin@jmvalin.ca>
Date: Mon, 7 Mar 2016 15:58:41 -0500
Subject: [PATCH] Makes second filters for 45-degree directions horizontal

This reduces the deringing worst-case number of "latency" lines from 10 to 8.

ntt-short1 results:
         MEDIUM (%) HIGH (%)
    PSNR -0.063681 -0.027661
 PSNRHVS -0.063628 -0.007841
    SSIM -0.007828 -0.048415
FASTSSIM  0.139420 -0.183910

Change-Id: I006544ab748b76c0334e406300b3eda20e125846
---
 vp10/common/od_dering.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/vp10/common/od_dering.c b/vp10/common/od_dering.c
index 5b9edc386..be6d48e23 100644
--- a/vp10/common/od_dering.c
+++ b/vp10/common/od_dering.c
@@ -164,7 +164,7 @@ void od_filter_dering_orthogonal_c(int16_t *y, int ystride, const int16_t *in,
   int i;
   int j;
   int offset;
-  if (dir <= 4) offset = OD_FILT_BSTRIDE;
+  if (dir > 0 && dir < 4) offset = OD_FILT_BSTRIDE;
   else offset = 1;
   for (i = 0; i < 1 << ln; i++) {
     for (j = 0; j < 1 << ln; j++) {
-- 
GitLab