diff --git a/media/libmedia/IAudioTrack.cpp b/media/libmedia/IAudioTrack.cpp
index a7958de..28ebbbf 100644
--- a/media/libmedia/IAudioTrack.cpp
+++ b/media/libmedia/IAudioTrack.cpp
@@ -35,7 +35,10 @@
     FLUSH,
     MUTE,
     PAUSE,
-    ATTACH_AUX_EFFECT
+    ATTACH_AUX_EFFECT,
+    ALLOCATE_TIMED_BUFFER,
+    QUEUE_TIMED_BUFFER,
+    SET_MEDIA_TIME_TRANSFORM,
 };
 
 class BpAudioTrack : public BpInterface<IAudioTrack>
@@ -114,6 +117,52 @@
         }
         return status;
     }
+
+    virtual status_t allocateTimedBuffer(size_t size, sp<IMemory>* buffer) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
+        data.writeInt32(size);
+        status_t status = remote()->transact(ALLOCATE_TIMED_BUFFER,
+                                             data, &reply);
+        if (status == NO_ERROR) {
+            status = reply.readInt32();
+            if (status == NO_ERROR) {
+                *buffer = interface_cast<IMemory>(reply.readStrongBinder());
+            }
+        }
+        return status;
+    }
+
+    virtual status_t queueTimedBuffer(const sp<IMemory>& buffer,
+                                      int64_t pts) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
+        data.writeStrongBinder(buffer->asBinder());
+        data.writeInt64(pts);
+        status_t status = remote()->transact(QUEUE_TIMED_BUFFER,
+                                             data, &reply);
+        if (status == NO_ERROR) {
+            status = reply.readInt32();
+        }
+        return status;
+    }
+
+    virtual status_t setMediaTimeTransform(const LinearTransform& xform,
+                                           int target) {
+        Parcel data, reply;
+        data.writeInterfaceToken(IAudioTrack::getInterfaceDescriptor());
+        data.writeInt64(xform.a_zero);
+        data.writeInt64(xform.b_zero);
+        data.writeInt32(xform.a_to_b_numer);
+        data.writeInt32(xform.a_to_b_denom);
+        data.writeInt32(target);
+        status_t status = remote()->transact(SET_MEDIA_TIME_TRANSFORM,
+                                             data, &reply);
+        if (status == NO_ERROR) {
+            status = reply.readInt32();
+        }
+        return status;
+    }
 };
 
 IMPLEMENT_META_INTERFACE(AudioTrack, "android.media.IAudioTrack");
@@ -159,10 +208,38 @@
             reply->writeInt32(attachAuxEffect(data.readInt32()));
             return NO_ERROR;
         } break;
+        case ALLOCATE_TIMED_BUFFER: {
+            CHECK_INTERFACE(IAudioTrack, data, reply);
+            sp<IMemory> buffer;
+            status_t status = allocateTimedBuffer(data.readInt32(), &buffer);
+            reply->writeInt32(status);
+            if (status == NO_ERROR) {
+                reply->writeStrongBinder(buffer->asBinder());
+            }
+            return NO_ERROR;
+        } break;
+        case QUEUE_TIMED_BUFFER: {
+            CHECK_INTERFACE(IAudioTrack, data, reply);
+            sp<IMemory> buffer = interface_cast<IMemory>(
+                data.readStrongBinder());
+            uint64_t pts = data.readInt64();
+            reply->writeInt32(queueTimedBuffer(buffer, pts));
+            return NO_ERROR;
+        } break;
+        case SET_MEDIA_TIME_TRANSFORM: {
+            CHECK_INTERFACE(IAudioTrack, data, reply);
+            LinearTransform xform;
+            xform.a_zero = data.readInt64();
+            xform.b_zero = data.readInt64();
+            xform.a_to_b_numer = data.readInt32();
+            xform.a_to_b_denom = data.readInt32();
+            int target = data.readInt32();
+            reply->writeInt32(setMediaTimeTransform(xform, target));
+            return NO_ERROR;
+        } break;
         default:
             return BBinder::onTransact(code, data, reply, flags);
     }
 }
 
 }; // namespace android
-