diff --git a/media/tests/MediaFrameworkTest/src/com/android/mediaframeworktest/functional/CodecTest.java b/media/tests/MediaFrameworkTest/src/com/android/mediaframeworktest/functional/CodecTest.java
index bcfcbf30a0104..8f7d6ac312b8d 100644
--- a/media/tests/MediaFrameworkTest/src/com/android/mediaframeworktest/functional/CodecTest.java
+++ b/media/tests/MediaFrameworkTest/src/com/android/mediaframeworktest/functional/CodecTest.java
@@ -60,6 +60,7 @@ public class CodecTest {
     private static boolean onPrepareSuccess = false;
     public static boolean onCompleteSuccess = false;
     public static boolean mPlaybackError = false;
+    public static boolean mFailedToCompleteWithNoError = true;
     public static int mMediaInfoUnknownCount = 0;
     public static int mMediaInfoVideoTrackLaggingCount = 0;
     public static int mMediaInfoBadInterleavingCount = 0;
@@ -801,6 +802,7 @@ public class CodecTest {
         mMediaInfoNotSeekableCount = 0;
         mMediaInfoMetdataUpdateCount = 0;
         mPlaybackError = false;
+        mFailedToCompleteWithNoError = true;
         String testResult;
 
         initializeMessageLooper();
@@ -843,6 +845,9 @@ public class CodecTest {
         } catch (Exception e) {
             Log.v(TAG, "playMediaSamples:" + e.getMessage());
         }
+        // Check if playback state is unknown (neither completed nor erroneous) unless
+        // it's not interrupted in the middle. If true, that is an exceptional case to investigate.
+        mFailedToCompleteWithNoError = !(onCompleteSuccess || mPlaybackError);
         return onCompleteSuccess;
     }
 }
diff --git a/media/tests/MediaFrameworkTest/src/com/android/mediaframeworktest/stress/MediaPlayerStressTest.java b/media/tests/MediaFrameworkTest/src/com/android/mediaframeworktest/stress/MediaPlayerStressTest.java
index e289812977236..4221f1bad30ce 100644
--- a/media/tests/MediaFrameworkTest/src/com/android/mediaframeworktest/stress/MediaPlayerStressTest.java
+++ b/media/tests/MediaFrameworkTest/src/com/android/mediaframeworktest/stress/MediaPlayerStressTest.java
@@ -65,6 +65,7 @@ public class MediaPlayerStressTest extends ActivityInstrumentationTestCase2<Medi
     private int mTotalBadInterleaving = 0;
     private int mTotalNotSeekable = 0;
     private int mTotalMetaDataUpdate = 0;
+    private int mTotalFailedToCompleteWithNoError = 0;
 
     //Test result output file
     private static final String PLAYBACK_RESULT = "PlaybackTestResult.txt";
@@ -78,6 +79,8 @@ public class MediaPlayerStressTest extends ActivityInstrumentationTestCase2<Medi
         output.write(" Bad Interleaving: " + CodecTest.mMediaInfoBadInterleavingCount);
         output.write(" Not Seekable: " + CodecTest.mMediaInfoNotSeekableCount);
         output.write(" Info Meta data update: " + CodecTest.mMediaInfoMetdataUpdateCount);
+        output.write(" Failed To Complete With No Error: " +
+                CodecTest.mFailedToCompleteWithNoError);
         output.write("\n");
     }
 
@@ -90,16 +93,21 @@ public class MediaPlayerStressTest extends ActivityInstrumentationTestCase2<Medi
         output.write("Total Bad Interleaving: " + mTotalBadInterleaving + "\n");
         output.write("Total Not Seekable: " + mTotalNotSeekable + "\n");
         output.write("Total Info Meta data update: " + mTotalMetaDataUpdate + "\n");
+        output.write("Total Failed To Complete With No Error: " +
+                mTotalFailedToCompleteWithNoError);
         output.write("\n");
     }
 
     private void updateTestResult(){
-        if (CodecTest.onCompleteSuccess){
+        if (CodecTest.onCompleteSuccess) {
             mTotalComplete++;
         }
-        else if (CodecTest.mPlaybackError){
+        else if (CodecTest.mPlaybackError) {
             mTotalPlaybackError++;
         }
+        else if (CodecTest.mFailedToCompleteWithNoError) {
+            mTotalFailedToCompleteWithNoError++;
+        }
         mTotalInfoUnknown += CodecTest.mMediaInfoUnknownCount;
         mTotalVideoTrackLagging += CodecTest.mMediaInfoVideoTrackLaggingCount;
         mTotalBadInterleaving += CodecTest.mMediaInfoBadInterleavingCount;
@@ -149,4 +157,4 @@ public class MediaPlayerStressTest extends ActivityInstrumentationTestCase2<Medi
             assertTrue("testMediaSamples", testResult);
        }
     }
-}
\ No newline at end of file
+}