diff --git a/media/libstagefright/NuHTTPDataSource.cpp b/media/libstagefright/NuHTTPDataSource.cpp
index fcbfdacf36c23..2743b2fa52a0c 100644
--- a/media/libstagefright/NuHTTPDataSource.cpp
+++ b/media/libstagefright/NuHTTPDataSource.cpp
@@ -42,7 +42,7 @@ static bool ParseURL(
         path->setTo(slashPos);
     }
 
-    char *colonPos = strchr(host->string(), ':');
+    const char *colonPos = strchr(host->string(), ':');
 
     if (colonPos != NULL) {
         unsigned long x;
diff --git a/media/libstagefright/httplive/M3UParser.cpp b/media/libstagefright/httplive/M3UParser.cpp
index a68c641679b8f..90f3d6df0b448 100644
--- a/media/libstagefright/httplive/M3UParser.cpp
+++ b/media/libstagefright/httplive/M3UParser.cpp
@@ -96,7 +96,7 @@ static bool MakeURL(const char *baseURL, const char *url, AString *out) {
         out->setTo(baseURL);
         out->append(url);
     } else {
-        char *slashPos = strrchr(baseURL, '/');
+        const char *slashPos = strrchr(baseURL, '/');
 
         if (slashPos > &baseURL[6]) {
             out->setTo(baseURL, slashPos - baseURL);
diff --git a/media/libstagefright/rtsp/ARTSPConnection.cpp b/media/libstagefright/rtsp/ARTSPConnection.cpp
index 5ec03b2e09ab3..f928c06fba0f7 100644
--- a/media/libstagefright/rtsp/ARTSPConnection.cpp
+++ b/media/libstagefright/rtsp/ARTSPConnection.cpp
@@ -133,7 +133,7 @@ bool ARTSPConnection::ParseURL(
         path->setTo(slashPos);
     }
 
-    char *colonPos = strchr(host->c_str(), ':');
+    const char *colonPos = strchr(host->c_str(), ':');
 
     if (colonPos != NULL) {
         unsigned long x;
diff --git a/media/libstagefright/rtsp/ASessionDescription.cpp b/media/libstagefright/rtsp/ASessionDescription.cpp
index 0db3595a14657..612caffa067e9 100644
--- a/media/libstagefright/rtsp/ASessionDescription.cpp
+++ b/media/libstagefright/rtsp/ASessionDescription.cpp
@@ -187,7 +187,7 @@ void ASessionDescription::getFormatType(
     AString format;
     getFormat(index, &format);
 
-    char *lastSpacePos = strrchr(format.c_str(), ' ');
+    const char *lastSpacePos = strrchr(format.c_str(), ' ');
     CHECK(lastSpacePos != NULL);
 
     char *end;
diff --git a/media/libstagefright/rtsp/MyHandler.h b/media/libstagefright/rtsp/MyHandler.h
index 1bc99250733ce..6943608954e71 100644
--- a/media/libstagefright/rtsp/MyHandler.h
+++ b/media/libstagefright/rtsp/MyHandler.h
@@ -1112,7 +1112,7 @@ private:
             out->setTo(baseURL);
             out->append(url);
         } else {
-            char *slashPos = strrchr(baseURL, '/');
+            const char *slashPos = strrchr(baseURL, '/');
 
             if (slashPos > &baseURL[6]) {
                 out->setTo(baseURL, slashPos - baseURL);