[x265] [PATCH] testbench: fix crash on downshift and upshift module

[murugan at multicorewareinc.com]

# HG changeset patch
# User Murugan Vairavel <murugan at multicorewareinc.com>
# Date 1398149117 -19800
#      Tue Apr 22 12:15:17 2014 +0530
# Node ID bc8321f5968c829c6f2914b23d9eaa5106485163
# Parent  84315557c97ff2b10cf01910d6b131e28fce1781
testbench: fix crash on downshift and upshift module

Force testbench to pass height and width >= 16, As the encoder prevents encode
if height and width of the picture less than 16.

diff -r 84315557c97f -r bc8321f5968c source/test/pixelharness.cpp
--- a/source/test/pixelharness.cpp	Mon Apr 21 22:23:48 2014 -0500
+++ b/source/test/pixelharness.cpp	Tue Apr 22 12:15:17 2014 +0530
@@ -938,8 +938,8 @@
     memset(opt_dest, 0xCD, sizeof(opt_dest));
 
     int srcStride = 64;
-    int width = rand() % 64;
-    int height = 1 + rand() % 63;
+    int width = 16 + rand() % 48;
+    int height = 16 + rand() % 48;
     int dstStride = width;
     int j = 0;
 
@@ -967,8 +967,8 @@
     memset(opt_dest, 0xCD, sizeof(opt_dest));
 
     int srcStride = 64;
-    int width = rand() % 64;
-    int height = 1 + rand() % 63;
+    int width = 16 + rand() % 48;
+    int height = 16 + rand() % 48;
     int dstStride = width;
     int j = 0;