diff --git a/services/audioflinger/Threads.h b/services/audioflinger/Threads.h
index f18294b..680e021 100644
--- a/services/audioflinger/Threads.h
+++ b/services/audioflinger/Threads.h
@@ -1679,6 +1679,8 @@
 
                 void        updateMetadata_l() override;
 
+    virtual     void        toAudioPortConfig(struct audio_port_config *config);
+
 protected:
 
                 audio_stream_type_t         mStreamType;
@@ -1707,6 +1709,8 @@
                 void           processVolume_l() override;
                 void           setRecordSilenced(uid_t uid, bool silenced) override;
 
+    virtual     void           toAudioPortConfig(struct audio_port_config *config);
+
 protected:
 
                 AudioStreamIn*  mInput;