MediaMetrics: Update AudioTrack to log the playerIId

Test: adb shell dumpsys media.metrics
Bug: 180541541
Change-Id: I2c820f3ef4853e6a31c897d5239649cff07e0669
diff --git a/media/libaudioclient/AudioTrack.cpp b/media/libaudioclient/AudioTrack.cpp
index 57bd04f..55478a9 100644
--- a/media/libaudioclient/AudioTrack.cpp
+++ b/media/libaudioclient/AudioTrack.cpp
@@ -1857,6 +1857,7 @@
         .set(AMEDIAMETRICS_PROP_FLAGS, toString(mFlags).c_str())
         .set(AMEDIAMETRICS_PROP_ORIGINALFLAGS, toString(mOrigFlags).c_str())
         .set(AMEDIAMETRICS_PROP_SESSIONID, (int32_t)mSessionId)
+        .set(AMEDIAMETRICS_PROP_PLAYERIID, mPlayerIId)
         .set(AMEDIAMETRICS_PROP_TRACKID, mPortId) // dup from key
         .set(AMEDIAMETRICS_PROP_CONTENTTYPE, toString(mAttributes.content_type).c_str())
         .set(AMEDIAMETRICS_PROP_USAGE, toString(mAttributes.usage).c_str())
@@ -3263,6 +3264,18 @@
     return mProxy->getUnderrunFrames();
 }
 
+void AudioTrack::setPlayerIId(int playerIId)
+{
+    AutoMutex lock(mLock);
+    if (mPlayerIId == playerIId) return;
+
+    mPlayerIId = playerIId;
+    mediametrics::LogItem(mMetricsId)
+        .set(AMEDIAMETRICS_PROP_EVENT, AMEDIAMETRICS_PROP_EVENT_VALUE_SETPLAYERIID)
+        .set(AMEDIAMETRICS_PROP_PLAYERIID, playerIId)
+        .record();
+}
+
 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 e60ed55..f7f4857 100644
--- a/media/libaudioclient/include/media/AudioTrack.h
+++ b/media/libaudioclient/include/media/AudioTrack.h
@@ -986,6 +986,17 @@
      */
             audio_port_handle_t getPortId() const { return mPortId; };
 
+    /* Sets the playerIId field to associate the AudioTrack with an interface managed by
+     * AudioService.
+     *
+     * If this value is not set, then the playerIId is reported as -1
+     * (not associated with an AudioService player interface).
+     *
+     * For metrics purposes, we keep the playerIId association in the native
+     * client AudioTrack to improve the robustness under track restoration.
+     */
+            void setPlayerIId(int playerIId);
+
             void setAudioTrackCallback(const sp<media::IAudioTrackCallback>& callback) {
                 mAudioTrackCallback->setAudioTrackCallback(callback);
             }
@@ -1255,6 +1266,12 @@
     int                     mAuxEffectId;
     audio_port_handle_t     mPortId;                    // Id from Audio Policy Manager
 
+    /**
+     * mPlayerIId is the player id of the AudioTrack used by AudioManager.
+     * For an AudioTrack created by the Java interface, this is generally set once.
+     */
+    int                     mPlayerIId = -1;  // AudioManager.h PLAYER_PIID_INVALID
+
     mutable Mutex           mLock;
 
     int                     mPreviousPriority;          // before start()
diff --git a/media/libmediametrics/include/MediaMetricsConstants.h b/media/libmediametrics/include/MediaMetricsConstants.h
index 2af7eee..b8d59b7 100644
--- a/media/libmediametrics/include/MediaMetricsConstants.h
+++ b/media/libmediametrics/include/MediaMetricsConstants.h
@@ -131,6 +131,7 @@
 #define AMEDIAMETRICS_PROP_PERFORMANCEMODE "performanceMode"    // string value, "none", lowLatency"
 #define AMEDIAMETRICS_PROP_PLAYBACK_PITCH "playback.pitch" // double value (AudioTrack)
 #define AMEDIAMETRICS_PROP_PLAYBACK_SPEED "playback.speed" // double value (AudioTrack)
+#define AMEDIAMETRICS_PROP_PLAYERIID      "playerIId"      // int32 (-1 invalid/unset IID)
 #define AMEDIAMETRICS_PROP_ROUTEDDEVICEID "routedDeviceId" // int32
 #define AMEDIAMETRICS_PROP_SAMPLERATE     "sampleRate"     // int32
 #define AMEDIAMETRICS_PROP_SELECTEDDEVICEID "selectedDeviceId" // int32
@@ -182,6 +183,7 @@
 #define AMEDIAMETRICS_PROP_EVENT_VALUE_SETMODE    "setMode" // AudioFlinger
 #define AMEDIAMETRICS_PROP_EVENT_VALUE_SETBUFFERSIZE    "setBufferSize" // AudioTrack
 #define AMEDIAMETRICS_PROP_EVENT_VALUE_SETPLAYBACKPARAM "setPlaybackParam" // AudioTrack
+#define AMEDIAMETRICS_PROP_EVENT_VALUE_SETPLAYERIID "setPlayerIId" // AudioTrack
 #define AMEDIAMETRICS_PROP_EVENT_VALUE_SETVOICEVOLUME   "setVoiceVolume" // AudioFlinger
 #define AMEDIAMETRICS_PROP_EVENT_VALUE_SETVOLUME  "setVolume"  // AudioTrack
 #define AMEDIAMETRICS_PROP_EVENT_VALUE_START      "start"  // AudioTrack, AudioRecord