shithub: libvpx

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ref: f76158131d6480ef179f280d5bd9f3726e403af8
parent: 8307045cb51b60b749cc7955fc80c7d6ec9bdc1a
author: Alex Converse <[email protected]>
date: Tue May 3 06:49:19 EDT 2016 

Fix unsigned overflows in temporal filter.

Change-Id: Iebdc8304d30c78f03f99f6dc665003ff41c8b1cd


--- a/vp9/encoder/vp9_temporal_filter.c
+++ b/vp9/encoder/vp9_temporal_filter.c
@@ -143,8 +143,8 @@
 
       for (idy = -1; idy <= 1; ++idy) {
         for (idx = -1; idx <= 1; ++idx) {
-          int row = i + idy;
-          int col = j + idx;
+          int row = (int)i + idy;
+          int col = (int)j + idx;
 
           if (row >= 0 && row < (int)block_height &&
               col >= 0 && col < (int)block_width) {
@@ -211,8 +211,8 @@
 
       for (idy = -1; idy <= 1; ++idy) {
         for (idx = -1; idx <= 1; ++idx) {
-          int row = i + idy;
-          int col = j + idx;
+          int row = (int)i + idy;
+          int col = (int)j + idx;
 
           if (row >= 0 && row < (int)block_height &&
               col >= 0 && col < (int)block_width) {