Fix unsigned warnings

Change-Id: I8d174235cb8092d4e879ec43228e7f7f6fdad462

tests/listening/slesTest_playMuteSolo.cpp

@@ -51,7 +51,7 @@ void ExitOnErrorFunc( SLresult result , int line)
 // These are extensions to OpenSL ES 1.0.1 values
 
 #define SL_PREFETCHSTATUS_UNKNOWN 0
-#define SL_PREFETCHSTATUS_ERROR   (-1)
+#define SL_PREFETCHSTATUS_ERROR   ((SLuint32) -1)
 
 // Mutex and condition shared with main program to protect prefetch_status
 

tests/mimeUri/slesTestLoopUri.cpp

@@ -32,7 +32,7 @@
 // These are extensions to OpenSL ES 1.0.1 values
 
 #define SL_PREFETCHSTATUS_UNKNOWN 0
-#define SL_PREFETCHSTATUS_ERROR   (-1)
+#define SL_PREFETCHSTATUS_ERROR   ((SLuint32) -1)
 
 // Mutex and condition shared with main program to protect prefetch_status
 

tests/mimeUri/slesTestSlowDownUri.cpp

@@ -34,7 +34,7 @@
 // These are extensions to OpenSL ES 1.0.1 values
 
 #define SL_PREFETCHSTATUS_UNKNOWN 0
-#define SL_PREFETCHSTATUS_ERROR   (-1)
+#define SL_PREFETCHSTATUS_ERROR   ((SLuint32) -1)
 
 // Mutex and condition shared with main program to protect prefetch_status
 

tests/sandbox/reverb.c

@@ -170,8 +170,8 @@ void printEnvNames(void)
 
 // These are extensions to OpenSL ES 1.0.1 values
 
-#define SL_PREFETCHSTATUS_UNKNOWN 0
-#define SL_PREFETCHSTATUS_ERROR   (-1)
+#define SL_PREFETCHSTATUS_UNKNOWN ((SLuint32) 0)
+#define SL_PREFETCHSTATUS_ERROR   ((SLuint32) -1)
 
 // Mutex and condition shared with main program to protect prefetch_status
 

tests/sandbox/xaplay.c

@@ -806,7 +806,7 @@ streamIndex, &mediaContainerInformation);
         if (pauseMs >= 0) {
             result = (*playerPlay)->GetPosition(playerPlay, &position);
             assert(XA_RESULT_SUCCESS == result);
-            if (position >= pauseMs) {
+            if ((int) position >= pauseMs) {
                 printf("Pausing for 5 seconds at position %u\n", position);
                 result = (*playerPlay)->SetPlayState(playerPlay, XA_PLAYSTATE_PAUSED);
                 assert(XA_RESULT_SUCCESS == result);