diff --git a/media/libstagefright/MPEG4Writer.cpp b/media/libstagefright/MPEG4Writer.cpp
index e6c2f7e..546df47 100644
--- a/media/libstagefright/MPEG4Writer.cpp
+++ b/media/libstagefright/MPEG4Writer.cpp
@@ -1118,7 +1118,7 @@
         startTimeUs = 0;
     }
 
-    mIsRealTimeRecording = true;
+    mIsRealTimeRecording = false;
     {
         int32_t isNotRealTime;
         if (params && params->findInt32(kKeyNotRealTime, &isNotRealTime)) {