diff --git a/media/libaudioclient/AudioTrack.cpp b/media/libaudioclient/AudioTrack.cpp
index ffbb32f..b6a7c23 100644
--- a/media/libaudioclient/AudioTrack.cpp
+++ b/media/libaudioclient/AudioTrack.cpp
@@ -29,6 +29,7 @@
 #include <audio_utils/clock.h>
 #include <audio_utils/primitives.h>
 #include <binder/IPCThreadState.h>
+#include <binder/IServiceManager.h>
 #include <media/AudioTrack.h>
 #include <utils/Log.h>
 #include <private/media/AudioTrackShared.h>
@@ -42,7 +43,9 @@
 
 #define WAIT_PERIOD_MS                  10
 #define WAIT_STREAM_END_TIMEOUT_SEC     120
+
 static const int kMaxLoopCountNotifications = 32;
+static constexpr char kAudioServiceName[] = "audio";
 
 using ::android::aidl_utils::statusTFromBinderStatus;
 using ::android::base::StringPrintf;
@@ -1945,6 +1948,9 @@
     }
 
     mPortId = output.portId;
+    // notify the upper layers about the new portId
+    triggerPortIdUpdate_l();
+
     // We retain a copy of the I/O handle, but don't own the reference
     mOutput = output.outputId;
     mRefreshRemaining = true;
@@ -3507,12 +3513,34 @@
     if (mPlayerIId == playerIId) return;
 
     mPlayerIId = playerIId;
+    triggerPortIdUpdate_l();
     mediametrics::LogItem(mMetricsId)
         .set(AMEDIAMETRICS_PROP_EVENT, AMEDIAMETRICS_PROP_EVENT_VALUE_SETPLAYERIID)
         .set(AMEDIAMETRICS_PROP_PLAYERIID, playerIId)
         .record();
 }
 
+void AudioTrack::triggerPortIdUpdate_l() {
+    if (mAudioManager == nullptr) {
+        // use checkService() to avoid blocking if audio service is not up yet
+        sp<IBinder> binder =
+            defaultServiceManager()->checkService(String16(kAudioServiceName));
+        if (binder == nullptr) {
+            ALOGE("%s(%d): binding to audio service failed.",
+                  __func__,
+                  mPlayerIId);
+            return;
+        }
+
+        mAudioManager = interface_cast<IAudioManager>(binder);
+    }
+
+    // first time when the track is created we do not have a valid piid
+    if (mPlayerIId != PLAYER_PIID_INVALID) {
+        mAudioManager->playerEvent(mPlayerIId, PLAYER_UPDATE_PORT_ID, mPortId);
+    }
+}
+
 status_t AudioTrack::addAudioDeviceCallback(const sp<AudioSystem::AudioDeviceCallback>& callback)
 {
 
diff --git a/media/libaudioclient/include/media/AudioTrack.h b/media/libaudioclient/include/media/AudioTrack.h
index 32576c2..e873607 100644
--- a/media/libaudioclient/include/media/AudioTrack.h
+++ b/media/libaudioclient/include/media/AudioTrack.h
@@ -17,6 +17,7 @@
 #ifndef ANDROID_AUDIOTRACK_H
 #define ANDROID_AUDIOTRACK_H
 
+#include <audiomanager/IAudioManager.h>
 #include <binder/IMemory.h>
 #include <cutils/sched_policy.h>
 #include <media/AudioSystem.h>
@@ -1145,6 +1146,8 @@
             void setAudioTrackCallback(const sp<media::IAudioTrackCallback>& callback) {
                 mAudioTrackCallback->setAudioTrackCallback(callback);
             }
+ private:
+            void triggerPortIdUpdate_l();
 
  protected:
     /* copying audio tracks is not allowed */
@@ -1419,6 +1422,9 @@
      */
     int                     mPlayerIId = -1;  // AudioManager.h PLAYER_PIID_INVALID
 
+    /** Interface for interacting with the AudioService. */
+    sp<IAudioManager>       mAudioManager;
+
     /**
      * mLogSessionId is a string identifying this AudioTrack for the metrics service.
      * It may be unique or shared with other objects.  An empty string means the