diff --git a/media/libmedia/AudioTrack.cpp b/media/libmedia/AudioTrack.cpp
index dd0ec73..d90e733 100644
--- a/media/libmedia/AudioTrack.cpp
+++ b/media/libmedia/AudioTrack.cpp
@@ -1712,6 +1712,11 @@
     }
 }
 
+status_t AudioTrack::getTimestamp(AudioTimestamp& timestamp)
+{
+    return INVALID_OPERATION;
+}
+
 String8 AudioTrack::getParameters(const String8& keys)
 {
     if (mOutput) {