diff --git a/media/libmediaplayerservice/nuplayer/GenericSource.cpp b/media/libmediaplayerservice/nuplayer/GenericSource.cpp
index 6859a1a..0e520a8 100644
--- a/media/libmediaplayerservice/nuplayer/GenericSource.cpp
+++ b/media/libmediaplayerservice/nuplayer/GenericSource.cpp
@@ -1311,11 +1311,9 @@
             if ((seeking || formatChange)
                     && (trackType == MEDIA_TRACK_TYPE_AUDIO
                     || trackType == MEDIA_TRACK_TYPE_VIDEO)) {
-                ATSParser::DiscontinuityType type = formatChange
-                        ? (seeking
-                                ? ATSParser::DISCONTINUITY_FORMATCHANGE
-                                : ATSParser::DISCONTINUITY_NONE)
-                        : ATSParser::DISCONTINUITY_SEEK;
+                ATSParser::DiscontinuityType type = (formatChange && seeking)
+                        ? ATSParser::DISCONTINUITY_FORMATCHANGE
+                        : ATSParser::DISCONTINUITY_NONE;
                 track->mPackets->queueDiscontinuity( type, NULL, true /* discard */);
             }
 
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayer.cpp b/media/libmediaplayerservice/nuplayer/NuPlayer.cpp
index 931451f..47bd989 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayer.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayer.cpp
@@ -95,21 +95,21 @@
     DISALLOW_EVIL_CONSTRUCTORS(SetSurfaceAction);
 };
 
-struct NuPlayer::ShutdownDecoderAction : public Action {
-    ShutdownDecoderAction(bool audio, bool video)
+struct NuPlayer::FlushDecoderAction : public Action {
+    FlushDecoderAction(FlushCommand audio, FlushCommand video)
         : mAudio(audio),
           mVideo(video) {
     }
 
     virtual void execute(NuPlayer *player) {
-        player->performDecoderShutdown(mAudio, mVideo);
+        player->performDecoderFlush(mAudio, mVideo);
     }
 
 private:
-    bool mAudio;
-    bool mVideo;
+    FlushCommand mAudio;
+    FlushCommand mVideo;
 
-    DISALLOW_EVIL_CONSTRUCTORS(ShutdownDecoderAction);
+    DISALLOW_EVIL_CONSTRUCTORS(FlushDecoderAction);
 };
 
 struct NuPlayer::PostMessageAction : public Action {
@@ -522,19 +522,24 @@
         {
             ALOGV("kWhatSetVideoNativeWindow");
 
-            mDeferredActions.push_back(
-                    new ShutdownDecoderAction(
-                        false /* audio */, true /* video */));
-
             sp<RefBase> obj;
             CHECK(msg->findObject("native-window", &obj));
 
+            if (mSource->getFormat(false /* audio */) == NULL) {
+                performSetSurface(static_cast<NativeWindowWrapper *>(obj.get()));
+                break;
+            }
+
+            mDeferredActions.push_back(
+                    new FlushDecoderAction(FLUSH_CMD_FLUSH /* audio */,
+                                           FLUSH_CMD_SHUTDOWN /* video */));
+
             mDeferredActions.push_back(
                     new SetSurfaceAction(
                         static_cast<NativeWindowWrapper *>(obj.get())));
 
             if (obj != NULL) {
-                if (mStarted && mSource->getFormat(false /* audio */) != NULL) {
+                if (mStarted) {
                     // Issue a seek to refresh the video screen only if started otherwise
                     // the extractor may not yet be started and will assert.
                     // If the video decoder is not set (perhaps audio only in this case)
@@ -749,7 +754,9 @@
                 switch (*flushing) {
                     case NONE:
                         mDeferredActions.push_back(
-                                new ShutdownDecoderAction(audio, !audio /* video */));
+                                new FlushDecoderAction(
+                                    audio ? FLUSH_CMD_SHUTDOWN : FLUSH_CMD_NONE,
+                                    audio ? FLUSH_CMD_NONE : FLUSH_CMD_SHUTDOWN));
                         processDeferredActions();
                         break;
                     case FLUSHING_DECODER:
@@ -872,8 +879,9 @@
             ALOGV("kWhatReset");
 
             mDeferredActions.push_back(
-                    new ShutdownDecoderAction(
-                        true /* audio */, true /* video */));
+                    new FlushDecoderAction(
+                        FLUSH_CMD_SHUTDOWN /* audio */,
+                        FLUSH_CMD_SHUTDOWN /* video */));
 
             mDeferredActions.push_back(
                     new SimpleAction(&NuPlayer::performReset));
@@ -893,7 +901,8 @@
                     seekTimeUs, needNotify);
 
             mDeferredActions.push_back(
-                    new SimpleAction(&NuPlayer::performDecoderFlush));
+                    new FlushDecoderAction(FLUSH_CMD_FLUSH /* audio */,
+                                           FLUSH_CMD_FLUSH /* video */));
 
             mDeferredActions.push_back(
                     new SeekAction(seekTimeUs, needNotify));
@@ -1625,7 +1634,9 @@
     ALOGI("queueDecoderShutdown audio=%d, video=%d", audio, video);
 
     mDeferredActions.push_back(
-            new ShutdownDecoderAction(audio, video));
+            new FlushDecoderAction(
+                audio ? FLUSH_CMD_SHUTDOWN : FLUSH_CMD_NONE,
+                video ? FLUSH_CMD_SHUTDOWN : FLUSH_CMD_NONE));
 
     mDeferredActions.push_back(
             new SimpleAction(&NuPlayer::performScanSources));
@@ -1770,40 +1781,22 @@
     // everything's flushed, continue playback.
 }
 
-void NuPlayer::performDecoderFlush() {
-    ALOGV("performDecoderFlush");
+void NuPlayer::performDecoderFlush(FlushCommand audio, FlushCommand video) {
+    ALOGV("performDecoderFlush audio=%d, video=%d", audio, video);
 
-    if (mAudioDecoder == NULL && mVideoDecoder == NULL) {
+    if ((audio == FLUSH_CMD_NONE || mAudioDecoder == NULL)
+            && (video == FLUSH_CMD_NONE || mVideoDecoder == NULL)) {
         return;
     }
 
     mTimeDiscontinuityPending = true;
 
-    if (mAudioDecoder != NULL) {
-        flushDecoder(true /* audio */, false /* needShutdown */);
+    if (audio != FLUSH_CMD_NONE && mAudioDecoder != NULL) {
+        flushDecoder(true /* audio */, (audio == FLUSH_CMD_SHUTDOWN));
     }
 
-    if (mVideoDecoder != NULL) {
-        flushDecoder(false /* audio */, false /* needShutdown */);
-    }
-}
-
-void NuPlayer::performDecoderShutdown(bool audio, bool video) {
-    ALOGV("performDecoderShutdown audio=%d, video=%d", audio, video);
-
-    if ((!audio || mAudioDecoder == NULL)
-            && (!video || mVideoDecoder == NULL)) {
-        return;
-    }
-
-    mTimeDiscontinuityPending = true;
-
-    if (audio && mAudioDecoder != NULL) {
-        flushDecoder(true /* audio */, true /* needShutdown */);
-    }
-
-    if (video && mVideoDecoder != NULL) {
-        flushDecoder(false /* audio */, true /* needShutdown */);
+    if (video != FLUSH_CMD_NONE && mVideoDecoder != NULL) {
+        flushDecoder(false /* audio */, (video == FLUSH_CMD_SHUTDOWN));
     }
 }
 
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayer.h b/media/libmediaplayerservice/nuplayer/NuPlayer.h
index 14056ca..121f7dd 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayer.h
+++ b/media/libmediaplayerservice/nuplayer/NuPlayer.h
@@ -94,7 +94,7 @@
     struct Action;
     struct SeekAction;
     struct SetSurfaceAction;
-    struct ShutdownDecoderAction;
+    struct FlushDecoderAction;
     struct PostMessageAction;
     struct SimpleAction;
 
@@ -159,6 +159,12 @@
         SHUT_DOWN,
     };
 
+    enum FlushCommand {
+        FLUSH_CMD_NONE,
+        FLUSH_CMD_FLUSH,
+        FLUSH_CMD_SHUTDOWN,
+    };
+
     // Once the current flush is complete this indicates whether the
     // notion of time has changed.
     bool mTimeDiscontinuityPending;
@@ -229,8 +235,7 @@
     void processDeferredActions();
 
     void performSeek(int64_t seekTimeUs, bool needNotify);
-    void performDecoderFlush();
-    void performDecoderShutdown(bool audio, bool video);
+    void performDecoderFlush(FlushCommand audio, FlushCommand video);
     void performReset();
     void performScanSources();
     void performSetSurface(const sp<NativeWindowWrapper> &wrapper);
diff --git a/media/libmediaplayerservice/nuplayer/RTSPSource.cpp b/media/libmediaplayerservice/nuplayer/RTSPSource.cpp
index ffacb8f..52ae9ee 100644
--- a/media/libmediaplayerservice/nuplayer/RTSPSource.cpp
+++ b/media/libmediaplayerservice/nuplayer/RTSPSource.cpp
@@ -506,7 +506,7 @@
             sp<AnotherPacketSource> source = info->mSource;
             if (source != NULL) {
                 source->queueDiscontinuity(
-                        ATSParser::DISCONTINUITY_SEEK,
+                        ATSParser::DISCONTINUITY_TIME,
                         NULL,
                         true /* discard */);
             }
diff --git a/media/libmediaplayerservice/nuplayer/StreamingSource.cpp b/media/libmediaplayerservice/nuplayer/StreamingSource.cpp
index 2e9a29a..27f5159 100644
--- a/media/libmediaplayerservice/nuplayer/StreamingSource.cpp
+++ b/media/libmediaplayerservice/nuplayer/StreamingSource.cpp
@@ -80,7 +80,7 @@
             mFinalResult = ERROR_END_OF_STREAM;
             break;
         } else if (n == INFO_DISCONTINUITY) {
-            int32_t type = ATSParser::DISCONTINUITY_SEEK;
+            int32_t type = ATSParser::DISCONTINUITY_TIME;
 
             int32_t mask;
             if (extra != NULL
@@ -118,7 +118,7 @@
 
                 mTSParser->signalDiscontinuity(
                         ((type & 1) == 0)
-                            ? ATSParser::DISCONTINUITY_SEEK
+                            ? ATSParser::DISCONTINUITY_TIME
                             : ATSParser::DISCONTINUITY_FORMATCHANGE,
                         extra);
             } else {
diff --git a/media/libstagefright/httplive/LiveSession.cpp b/media/libstagefright/httplive/LiveSession.cpp
index fba6b09..874c118 100644
--- a/media/libstagefright/httplive/LiveSession.cpp
+++ b/media/libstagefright/httplive/LiveSession.cpp
@@ -1458,7 +1458,7 @@
                     extra->setInt64("timeUs", timeUs);
                     discontinuityQueue = mDiscontinuities.valueFor(indexToType(j));
                     discontinuityQueue->queueDiscontinuity(
-                            ATSParser::DISCONTINUITY_SEEK, extra, true);
+                            ATSParser::DISCONTINUITY_TIME, extra, true);
                 } else {
                     int32_t type;
                     int64_t srcSegmentStartTimeUs;
diff --git a/media/libstagefright/httplive/PlaylistFetcher.cpp b/media/libstagefright/httplive/PlaylistFetcher.cpp
index 30fa868..89181b5 100644
--- a/media/libstagefright/httplive/PlaylistFetcher.cpp
+++ b/media/libstagefright/httplive/PlaylistFetcher.cpp
@@ -1155,7 +1155,7 @@
         extra->setInt64(IStreamListener::kKeyMediaTimeUs, 0);
 
         mTSParser->signalDiscontinuity(
-                ATSParser::DISCONTINUITY_SEEK, extra);
+                ATSParser::DISCONTINUITY_TIME, extra);
 
         mAbsoluteTimeAnchorUs = mNextPTSTimeUs;
         mNextPTSTimeUs = -1ll;
diff --git a/media/libstagefright/mpeg2ts/ATSParser.h b/media/libstagefright/mpeg2ts/ATSParser.h
index 8986a22..204934d 100644
--- a/media/libstagefright/mpeg2ts/ATSParser.h
+++ b/media/libstagefright/mpeg2ts/ATSParser.h
@@ -41,8 +41,6 @@
         DISCONTINUITY_ABSOLUTE_TIME     = 8,
         DISCONTINUITY_TIME_OFFSET       = 16,
 
-        DISCONTINUITY_SEEK              = DISCONTINUITY_TIME,
-
         // For legacy reasons this also implies a time discontinuity.
         DISCONTINUITY_FORMATCHANGE      =
             DISCONTINUITY_AUDIO_FORMAT
diff --git a/media/libstagefright/mpeg2ts/AnotherPacketSource.cpp b/media/libstagefright/mpeg2ts/AnotherPacketSource.cpp
index a03f6f9..ed40bdd 100644
--- a/media/libstagefright/mpeg2ts/AnotherPacketSource.cpp
+++ b/media/libstagefright/mpeg2ts/AnotherPacketSource.cpp
@@ -262,6 +262,10 @@
         }
     }
 
+    if (type == ATSParser::DISCONTINUITY_NONE) {
+        return;
+    }
+
     mEOSResult = OK;
     mLastQueuedTimeUs = 0;
     mLatestEnqueuedMeta = NULL;