diff --git a/media/libmediaplayerservice/MediaPlayerService.h b/media/libmediaplayerservice/MediaPlayerService.h
index 1581b49..80593b2 100644
--- a/media/libmediaplayerservice/MediaPlayerService.h
+++ b/media/libmediaplayerservice/MediaPlayerService.h
@@ -92,6 +92,7 @@
         virtual status_t        getFramesWritten(uint32_t *frameswritten) const;
         virtual audio_session_t getSessionId() const;
         virtual uint32_t        getSampleRate() const;
+        virtual int64_t         getBufferDurationInUs() const;
 
         virtual status_t        open(
                 uint32_t sampleRate, int channelCount, audio_channel_mask_t channelMask,