mediaplayer2: add srcId for source dependent API's

Test: cts
Bug: 112549021
Change-Id: I619c85af8f59cb5956ca0b399e918ea38e3b32b5
diff --git a/media/libmediaplayer2/include/mediaplayer2/mediaplayer2.h b/media/libmediaplayer2/include/mediaplayer2/mediaplayer2.h
index c7cd7d2..a945ffd 100644
--- a/media/libmediaplayer2/include/mediaplayer2/mediaplayer2.h
+++ b/media/libmediaplayer2/include/mediaplayer2/mediaplayer2.h
@@ -86,7 +86,7 @@
                     MediaPlayer2SeekMode mode = MediaPlayer2SeekMode::SEEK_PREVIOUS_SYNC);
             status_t        notifyAt(int64_t mediaTimeUs);
             status_t        getCurrentPosition(int64_t *msec);
-            status_t        getDuration(int64_t *msec);
+            status_t        getDuration(int64_t srcId, int64_t *msec);
             status_t        reset();
             status_t        setAudioStreamType(audio_stream_type_t type);
             status_t        getAudioStreamType(audio_stream_type_t *type);