diff --git a/include/gui/BufferQueueConsumer.h b/include/gui/BufferQueueConsumer.h
index 20db98c..2bdcf28 100644
--- a/include/gui/BufferQueueConsumer.h
+++ b/include/gui/BufferQueueConsumer.h
@@ -133,6 +133,9 @@
     // NATIVE_WINDOW_TRANSFORM_ROT_90.  The default is 0 (no transform).
     virtual status_t setTransformHint(uint32_t hint);
 
+    // Retrieve the sideband buffer stream, if any.
+    virtual sp<NativeHandle> getSidebandStream() const;
+
     // dump our state in a String
     virtual void dump(String8& result, const char* prefix) const;