diff --git a/include/media/AudioSystem.h b/include/media/AudioSystem.h
index b42bf54..42bb4df 100644
--- a/include/media/AudioSystem.h
+++ b/include/media/AudioSystem.h
@@ -222,6 +222,17 @@
 
     static status_t setVoiceVolume(float volume);
 
+    // return the number of audio frames written by AudioFlinger to audio HAL and
+    // audio dsp to DAC since the output on which the specificed stream is playing
+    // has exited standby.
+    // returned status (from utils/Errors.h) can be:
+    // - NO_ERROR: successful operation, halFrames and dspFrames point to valid data
+    // - INVALID_OPERATION: Not supported on current hardware platform
+    // - BAD_VALUE: invalid parameter
+    // NOTE: this feature is not supported on all hardware platforms and it is
+    // necessary to check returned status before using the returned values.
+    static status_t getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames, int stream = DEFAULT);
+
     //
     // AudioPolicyService interface
     //
diff --git a/include/media/IAudioFlinger.h b/include/media/IAudioFlinger.h
index b689dcb..bddd23e 100644
--- a/include/media/IAudioFlinger.h
+++ b/include/media/IAudioFlinger.h
@@ -130,6 +130,7 @@
     virtual status_t setStreamOutput(uint32_t stream, int output) = 0;
 
     virtual status_t setVoiceVolume(float volume) = 0;
+    virtual status_t getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames, int output) = 0;
 };
 
 
diff --git a/include/media/MediaPlayerInterface.h b/include/media/MediaPlayerInterface.h
index 6575da6..588c51a 100644
--- a/include/media/MediaPlayerInterface.h
+++ b/include/media/MediaPlayerInterface.h
@@ -72,6 +72,7 @@
         virtual ssize_t     frameSize() const = 0;
         virtual uint32_t    latency() const = 0;
         virtual float       msecsPerFrame() const = 0;
+        virtual status_t    getPosition(uint32_t *position) = 0;
 
         // If no callback is specified, use the "write" API below to submit
         // audio data. Otherwise return a full buffer of audio data on each