From: Marco <marpan@google.com>
Date: Thu, 12 Nov 2015 02:05:11 +0000 (-0800)
Subject: Adjust varianace threshold for high noise condition.
X-Git-Tag: v1.6.0~560^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=1827764450def2970b1866f10d0c359e6d118069;p=libvpx

Adjust varianace threshold for high noise condition.

Change-Id: I91c722e480328ff95b8c57614d8176ccaceb2539
---

diff --git a/vp9/encoder/vp9_encodeframe.c b/vp9/encoder/vp9_encodeframe.c
index 9d66839f9..93cf25c02 100644
--- a/vp9/encoder/vp9_encodeframe.c
+++ b/vp9/encoder/vp9_encodeframe.c
@@ -492,7 +492,7 @@ static void set_vbp_thresholds(VP9_COMP *cpi, int64_t thresholds[], int q) {
     // Increase base variance threshold if estimated noise level is high.
     if (cpi->noise_estimate.enabled) {
       if (cpi->noise_estimate.level == kHigh)
-        threshold_base = threshold_base << 2;
+        threshold_base = 3 * threshold_base;
       else
         if (cpi->noise_estimate.level == kMedium)
           threshold_base = threshold_base << 1;