Fix warning on Windows about conversion from int to bool in convert util

BUG=none
TEST=none
R=ryanpetrie@google.com

Review URL: https://webrtc-codereview.appspot.com/1579004

git-svn-id: http://libyuv.googlecode.com/svn/trunk@702 16f28f9a-4ce2-e073-06de-1de4eb20be90

README.chromium

 Name: libyuv
 URL: http://code.google.com/p/libyuv/
-Version: 701
+Version: 702
 License: BSD
 License File: LICENSE
 

include/libyuv/version.h

@@ -11,6 +11,6 @@
 #ifndef INCLUDE_LIBYUV_VERSION_H_  // NOLINT
 #define INCLUDE_LIBYUV_VERSION_H_
 
-#define LIBYUV_VERSION 701
+#define LIBYUV_VERSION 702
 
 #endif  // INCLUDE_LIBYUV_VERSION_H_  NOLINT

util/convert.cc

@@ -203,8 +203,8 @@ int main(int argc, const char* argv[]) {
     }
   }
 
-  bool org_is_yuv = strstr(argv[fileindex_org], "_P420.");
-  bool org_is_argb = strstr(argv[fileindex_org], "_ARGB.");
+  bool org_is_yuv = strstr(argv[fileindex_org], "_P420.") != NULL;
+  bool org_is_argb = strstr(argv[fileindex_org], "_ARGB.") != NULL;
   if (!org_is_yuv && !org_is_argb) {
     fprintf(stderr, "Original format unknown %s\n", argv[fileindex_org]);
     exit(1);
@@ -289,8 +289,9 @@ int main(int argc, const char* argv[]) {
                       dst_width, dst_height,
                       static_cast<libyuv::FilterMode>(filter));
       }
-      bool rec_is_yuv = strstr(argv[fileindex_rec + cur_rec], "_P420.");
-      bool rec_is_argb = strstr(argv[fileindex_rec + cur_rec], "_ARGB.");
+      bool rec_is_yuv = strstr(argv[fileindex_rec + cur_rec], "_P420.") != NULL;
+      bool rec_is_argb =
+          strstr(argv[fileindex_rec + cur_rec], "_ARGB.") != NULL;
       if (!rec_is_yuv && !rec_is_argb) {
         fprintf(stderr, "Output format unknown %s\n",
                 argv[fileindex_rec + cur_rec]);