From f1784aee04d274c6b396e97b9147df6dae641259 Mon Sep 17 00:00:00 2001
From: James Zern <jzern@google.com>
Date: Mon, 22 May 2017 03:11:03 -0700
Subject: [PATCH] near_lossless,FindClosestDiscretized: use unsigned ops

quiets undefined sanitizer warnings of the form:
left shift of 128 by 24 places cannot be represented in type 'int'

Change-Id: I8a389f2ac9238513517180f302f759425eeb7262
---
 src/enc/near_lossless_enc.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/enc/near_lossless_enc.c b/src/enc/near_lossless_enc.c
index c0e71b3e..307528cc 100644
--- a/src/enc/near_lossless_enc.c
+++ b/src/enc/near_lossless_enc.c
@@ -26,9 +26,9 @@
 
 // Quantizes the value up or down to a multiple of 1<<bits (or to 255),
 // choosing the closer one, resolving ties using bankers' rounding.
-static int FindClosestDiscretized(int a, int bits) {
-  const int mask = (1 << bits) - 1;
-  const int biased = a + (mask >> 1) + ((a >> bits) & 1);
+static uint32_t FindClosestDiscretized(uint32_t a, int bits) {
+  const uint32_t mask = (1 << bits) - 1;
+  const uint32_t biased = a + (mask >> 1) + ((a >> bits) & 1);
   assert(bits > 0);
   if (biased > 0xff) return 0xff;
   return biased & ~mask;