diff --git a/media/libmedia/include/media/mediaplayer.h b/media/libmedia/include/media/mediaplayer.h
index de4c7db..b45dae5 100644
--- a/media/libmedia/include/media/mediaplayer.h
+++ b/media/libmedia/include/media/mediaplayer.h
@@ -195,7 +195,8 @@
     INVOKE_ID_SELECT_TRACK = 4,
     INVOKE_ID_UNSELECT_TRACK = 5,
     INVOKE_ID_SET_VIDEO_SCALING_MODE = 6,
-    INVOKE_ID_GET_SELECTED_TRACK = 7
+    INVOKE_ID_GET_SELECTED_TRACK = 7,
+    INVOKE_ID_SET_PLAYER_IID = 8,
 };
 
 // ----------------------------------------------------------------------------
diff --git a/media/libmediaplayerservice/MediaPlayerService.cpp b/media/libmediaplayerservice/MediaPlayerService.cpp
index 8e19d02..f3cbdb0 100644
--- a/media/libmediaplayerservice/MediaPlayerService.cpp
+++ b/media/libmediaplayerservice/MediaPlayerService.cpp
@@ -1805,7 +1805,8 @@
 MediaPlayerService::AudioOutput::AudioOutput(audio_session_t sessionId,
         const AttributionSourceState& attributionSource, const audio_attributes_t* attr,
         const sp<AudioSystem::AudioDeviceCallback>& deviceCallback)
-    : mCallback(NULL),
+    : mCachedPlayerIId(PLAYER_PIID_INVALID),
+      mCallback(NULL),
       mCallbackCookie(NULL),
       mCallbackData(NULL),
       mStreamType(AUDIO_STREAM_MUSIC),
@@ -2314,6 +2315,10 @@
         return t->applyVolumeShaper(shaper.mConfiguration, operationToEnd);
     });
 
+    if (mCachedPlayerIId != PLAYER_PIID_INVALID) {
+        t->setPlayerIId(mCachedPlayerIId);
+    }
+
     mSampleRateHz = sampleRate;
     mFlags = flags;
     mMsecsPerFrame = 1E3f / (mPlaybackRate.mSpeed * sampleRate);
@@ -2366,6 +2371,17 @@
     return NO_INIT;
 }
 
+void MediaPlayerService::AudioOutput::setPlayerIId(int32_t playerIId)
+{
+    ALOGV("setPlayerIId(%d)", playerIId);
+    Mutex::Autolock lock(mLock);
+    mCachedPlayerIId = playerIId;
+
+    if (mTrack != nullptr) {
+        mTrack->setPlayerIId(mCachedPlayerIId);
+    }
+}
+
 void MediaPlayerService::AudioOutput::setNextOutput(const sp<AudioOutput>& nextOutput) {
     Mutex::Autolock lock(mLock);
     mNextOutput = nextOutput;
diff --git a/media/libmediaplayerservice/MediaPlayerService.h b/media/libmediaplayerservice/MediaPlayerService.h
index 86be3fe..52c2f79 100644
--- a/media/libmediaplayerservice/MediaPlayerService.h
+++ b/media/libmediaplayerservice/MediaPlayerService.h
@@ -113,6 +113,8 @@
                 bool doNotReconnect = false,
                 uint32_t suggestedFrameCount = 0);
 
+        virtual void            setPlayerIId(int32_t playerIId);
+
         virtual status_t        start();
         virtual ssize_t         write(const void* buffer, size_t size, bool blocking = true);
         virtual void            stop();
@@ -160,6 +162,7 @@
         sp<AudioTrack>          mTrack;
         sp<AudioTrack>          mRecycledTrack;
         sp<AudioOutput>         mNextOutput;
+        int                     mCachedPlayerIId;
         AudioCallback           mCallback;
         void *                  mCallbackCookie;
         sp<CallbackData>        mCallbackData;
diff --git a/media/libmediaplayerservice/include/MediaPlayerInterface.h b/media/libmediaplayerservice/include/MediaPlayerInterface.h
index 1cbd8a0..fb20aab 100644
--- a/media/libmediaplayerservice/include/MediaPlayerInterface.h
+++ b/media/libmediaplayerservice/include/MediaPlayerInterface.h
@@ -123,6 +123,8 @@
                 bool doNotReconnect = false,
                 uint32_t suggestedFrameCount = 0) = 0;
 
+        virtual void        setPlayerIId(int32_t playerIId) = 0;
+
         virtual status_t    start() = 0;
 
         /* Input parameter |size| is in byte units stored in |buffer|.
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp
index 2a50fc2..ceea2f4 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerDriver.cpp
@@ -26,6 +26,7 @@
 #include "NuPlayer.h"
 #include "NuPlayerSource.h"
 
+#include <audiomanager/AudioManager.h>
 #include <media/stagefright/foundation/ADebug.h>
 #include <media/stagefright/foundation/ALooper.h>
 #include <media/stagefright/foundation/AUtils.h>
@@ -85,6 +86,7 @@
       mMediaClock(new MediaClock),
       mPlayer(new NuPlayer(pid, mMediaClock)),
       mPlayerFlags(0),
+      mCachedPlayerIId(PLAYER_PIID_INVALID),
       mMetricsItem(NULL),
       mClientUid(-1),
       mAtEOS(false),
@@ -804,6 +806,16 @@
             return mPlayer->getSelectedTrack(type, reply);
         }
 
+        case INVOKE_ID_SET_PLAYER_IID:
+        {
+            Mutex::Autolock autoLock(mAudioSinkLock);
+            mCachedPlayerIId = request.readInt32();
+            if (mAudioSink != nullptr) {
+                mAudioSink->setPlayerIId(mCachedPlayerIId);
+            }
+            return OK;
+        }
+
         default:
         {
             return INVALID_OPERATION;
@@ -812,8 +824,12 @@
 }
 
 void NuPlayerDriver::setAudioSink(const sp<AudioSink> &audioSink) {
+    Mutex::Autolock autoLock(mAudioSinkLock);
     mPlayer->setAudioSink(audioSink);
     mAudioSink = audioSink;
+    if (mCachedPlayerIId != PLAYER_PIID_INVALID) {
+        mAudioSink->setPlayerIId(mCachedPlayerIId);
+    }
 }
 
 status_t NuPlayerDriver::setParameter(
@@ -1027,6 +1043,7 @@
             if (mState != STATE_RESET_IN_PROGRESS) {
                 if (mAutoLoop) {
                     audio_stream_type_t streamType = AUDIO_STREAM_MUSIC;
+                    Mutex::Autolock autoLock(mAudioSinkLock);
                     if (mAudioSink != NULL) {
                         streamType = mAudioSink->getAudioStreamType();
                     }
@@ -1037,6 +1054,7 @@
                 }
                 if (mLooping || mAutoLoop) {
                     mPlayer->seekToAsync(0);
+                    Mutex::Autolock autoLock(mAudioSinkLock);
                     if (mAudioSink != NULL) {
                         // The renderer has stopped the sink at the end in order to play out
                         // the last little bit of audio. If we're looping, we need to restart it.
diff --git a/media/libmediaplayerservice/nuplayer/include/nuplayer/NuPlayerDriver.h b/media/libmediaplayerservice/nuplayer/include/nuplayer/NuPlayerDriver.h
index 55a0fad..138cd6f 100644
--- a/media/libmediaplayerservice/nuplayer/include/nuplayer/NuPlayerDriver.h
+++ b/media/libmediaplayerservice/nuplayer/include/nuplayer/NuPlayerDriver.h
@@ -140,9 +140,12 @@
     sp<ALooper> mLooper;
     const sp<MediaClock> mMediaClock;
     const sp<NuPlayer> mPlayer;
-    sp<AudioSink> mAudioSink;
     uint32_t mPlayerFlags;
 
+    mutable Mutex mAudioSinkLock;
+    sp<AudioSink> mAudioSink GUARDED_BY(mAudioSinkLock);
+    int32_t mCachedPlayerIId GUARDED_BY(mAudioSinkLock);
+
     mediametrics::Item *mMetricsItem;
     mutable Mutex mMetricsLock;
     uid_t mClientUid;