diff --git a/include/media/AudioTrack.h b/include/media/AudioTrack.h
index 02c85cd..9a42bc1 100644
--- a/include/media/AudioTrack.h
+++ b/include/media/AudioTrack.h
@@ -273,18 +273,18 @@
      * left and right volumes. Levels must be >= 0.0 and <= 1.0.
      */
             status_t    setVolume(float left, float right);
-            void        getVolume(float* left, float* right);
+            void        getVolume(float* left, float* right) const;
 
     /* Set the send level for this track. An auxiliary effect should be attached
      * to the track with attachEffect(). Level must be >= 0.0 and <= 1.0.
      */
             status_t    setAuxEffectSendLevel(float level);
-            void        getAuxEffectSendLevel(float* level);
+            void        getAuxEffectSendLevel(float* level) const;
 
     /* Set sample rate for this track, mostly used for games' sound effects
      */
             status_t    setSampleRate(int sampleRate);
-            uint32_t    getSampleRate();
+            uint32_t    getSampleRate() const;
 
     /* Enables looping and sets the start and end points of looping.
      *
@@ -299,7 +299,7 @@
      *          (loopEnd-loopStart) <= framecount()
      */
             status_t    setLoop(uint32_t loopStart, uint32_t loopEnd, int loopCount);
-            status_t    getLoop(uint32_t *loopStart, uint32_t *loopEnd, int *loopCount);
+            status_t    getLoop(uint32_t *loopStart, uint32_t *loopEnd, int *loopCount) const;
 
     /* Sets marker position. When playback reaches the number of frames specified, a callback with
      * event type EVENT_MARKER is called. Calling setMarkerPosition with marker == 0 cancels marker
@@ -315,7 +315,7 @@
      *  - INVALID_OPERATION: the AudioTrack has no callback installed.
      */
             status_t    setMarkerPosition(uint32_t marker);
-            status_t    getMarkerPosition(uint32_t *marker);
+            status_t    getMarkerPosition(uint32_t *marker) const;
 
 
     /* Sets position update period. Every time the number of frames specified has been played,
@@ -333,7 +333,7 @@
      *  - INVALID_OPERATION: the AudioTrack has no callback installed.
      */
             status_t    setPositionUpdatePeriod(uint32_t updatePeriod);
-            status_t    getPositionUpdatePeriod(uint32_t *updatePeriod);
+            status_t    getPositionUpdatePeriod(uint32_t *updatePeriod) const;
 
     /* Sets playback head position within AudioTrack buffer. The new position is specified
      * in number of frames.
@@ -384,7 +384,7 @@
      * Returned value:
      *  AudioTrack session ID.
      */
-            int    getSessionId();
+            int    getSessionId() const;
 
     /* Attach track auxiliary output to specified effect. Use effectId = 0
      * to detach track from effect.
diff --git a/media/libmedia/AudioTrack.cpp b/media/libmedia/AudioTrack.cpp
index 8c33f41..233cf75 100644
--- a/media/libmedia/AudioTrack.cpp
+++ b/media/libmedia/AudioTrack.cpp
@@ -506,7 +506,7 @@
     return NO_ERROR;
 }
 
-void AudioTrack::getVolume(float* left, float* right)
+void AudioTrack::getVolume(float* left, float* right) const
 {
     if (left != NULL) {
         *left  = mVolume[LEFT];
@@ -531,7 +531,7 @@
     return NO_ERROR;
 }
 
-void AudioTrack::getAuxEffectSendLevel(float* level)
+void AudioTrack::getAuxEffectSendLevel(float* level) const
 {
     if (level != NULL) {
         *level  = mSendLevel;
@@ -553,7 +553,7 @@
     return NO_ERROR;
 }
 
-uint32_t AudioTrack::getSampleRate()
+uint32_t AudioTrack::getSampleRate() const
 {
     AutoMutex lock(mLock);
     return mCblk->sampleRate;
@@ -601,7 +601,7 @@
     return NO_ERROR;
 }
 
-status_t AudioTrack::getLoop(uint32_t *loopStart, uint32_t *loopEnd, int *loopCount)
+status_t AudioTrack::getLoop(uint32_t *loopStart, uint32_t *loopEnd, int *loopCount) const
 {
     AutoMutex lock(mLock);
     if (loopStart != NULL) {
@@ -631,7 +631,7 @@
     return NO_ERROR;
 }
 
-status_t AudioTrack::getMarkerPosition(uint32_t *marker)
+status_t AudioTrack::getMarkerPosition(uint32_t *marker) const
 {
     if (marker == NULL) return BAD_VALUE;
 
@@ -652,7 +652,7 @@
     return NO_ERROR;
 }
 
-status_t AudioTrack::getPositionUpdatePeriod(uint32_t *updatePeriod)
+status_t AudioTrack::getPositionUpdatePeriod(uint32_t *updatePeriod) const
 {
     if (updatePeriod == NULL) return BAD_VALUE;
 
@@ -712,7 +712,7 @@
             mCblk->sampleRate, mFormat, mChannelMask, (audio_policy_output_flags_t)mFlags);
 }
 
-int AudioTrack::getSessionId()
+int AudioTrack::getSessionId() const
 {
     return mSessionId;
 }