vp8-denoiser: Update some denoiser thresholds.

Change-Id: I67090d72c0fefd3105ac380415249599e053d3bd

vp8/encoder/denoising.c

diff --git a/vp8/encoder/denoising.c b/vp8/encoder/denoising.c
index 2a21943..f50d9a8 100644
--- a/vp8/encoder/denoising.c
+++ b/vp8/encoder/denoising.c
@@ -23,7 +23,7 @@
  */
 static const unsigned int SSE_DIFF_THRESHOLD = 16 * 16 * 20;
 static const unsigned int SSE_THRESHOLD = 16 * 16 * 40;
-static const unsigned int SSE_THRESHOLD_HIGH = 16 * 16 * 60;
+static const unsigned int SSE_THRESHOLD_HIGH = 16 * 16 * 80;
 
 /*
  * The filter function was modified to reduce the computational complexity.

vp8/encoder/denoising.h

diff --git a/vp8/encoder/denoising.h b/vp8/encoder/denoising.h
index 9a379a6..f13d52f 100644
--- a/vp8/encoder/denoising.h
+++ b/vp8/encoder/denoising.h
@@ -18,8 +18,8 @@
 extern "C" {
 #endif
 
-#define SUM_DIFF_THRESHOLD (16 * 16 * 2)
-#define SUM_DIFF_THRESHOLD_HIGH (600)  // ~(16 * 16 * 1.5)
+#define SUM_DIFF_THRESHOLD 384
+#define SUM_DIFF_THRESHOLD_HIGH 512
 #define MOTION_MAGNITUDE_THRESHOLD (8*3)
 
 #define SUM_DIFF_THRESHOLD_UV (96)   // (8 * 8 * 1.5)