MediaPlayer2: add getMediaPlayer2State

Test: MediaPlayer2 plays
Bug: 63934228
Change-Id: I1a5290de44e0ba78fa6adc055ffdd18a4f259f15
diff --git a/media/libmediaplayer2/include/mediaplayer2/MediaPlayer2Types.h b/media/libmediaplayer2/include/mediaplayer2/MediaPlayer2Types.h
index 260c7ed..3905b55 100644
--- a/media/libmediaplayer2/include/mediaplayer2/MediaPlayer2Types.h
+++ b/media/libmediaplayer2/include/mediaplayer2/MediaPlayer2Types.h
@@ -148,7 +148,16 @@
     MEDIA2_INFO_TIMED_TEXT_ERROR = 900,
 };
 
-enum media_player2_states {
+// Do not change these values without updating their counterparts in MediaPlayer2.java
+enum mediaplayer2_states {
+    MEDIAPLAYER2_STATE_IDLE         = 1,
+    MEDIAPLAYER2_STATE_PREPARED     = 2,
+    MEDIAPLAYER2_STATE_PLAYING      = 3,
+    MEDIAPLAYER2_STATE_PAUSED       = 4,
+    MEDIAPLAYER2_STATE_ERROR        = 5,
+};
+
+enum media_player2_internal_states {
     MEDIA_PLAYER2_STATE_ERROR        = 0,
     MEDIA_PLAYER2_IDLE               = 1 << 0,
     MEDIA_PLAYER2_INITIALIZED        = 1 << 1,
diff --git a/media/libmediaplayer2/include/mediaplayer2/mediaplayer2.h b/media/libmediaplayer2/include/mediaplayer2/mediaplayer2.h
index 3433cb1..d586192 100644
--- a/media/libmediaplayer2/include/mediaplayer2/mediaplayer2.h
+++ b/media/libmediaplayer2/include/mediaplayer2/mediaplayer2.h
@@ -68,6 +68,7 @@
             status_t        stop();
             status_t        pause();
             bool            isPlaying();
+            mediaplayer2_states getMediaPlayer2State();
             status_t        setPlaybackSettings(const AudioPlaybackRate& rate);
             status_t        getPlaybackSettings(AudioPlaybackRate* rate /* nonnull */);
             status_t        setSyncSettings(const AVSyncSettings& sync, float videoFpsHint);
@@ -145,7 +146,7 @@
     mutable Mutex               mLock;
     Mutex                       mNotifyLock;
     sp<MediaPlayer2Listener>    mListener;
-    media_player2_states        mCurrentState;
+    media_player2_internal_states mCurrentState;
     int64_t                     mCurrentPosition;
     MediaPlayer2SeekMode        mCurrentSeekMode;
     int64_t                     mSeekPosition;