diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index 6d2afaa..10d4029 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -645,6 +645,13 @@
         virtual sp<media::VolumeShaper::State> getVolumeShaperState(int id) override;
         virtual status_t    getTimestamp(AudioTimestamp& timestamp);
         virtual void        signal(); // signal playback thread for a change in control block
+                status_t    getDualMonoMode(audio_dual_mono_mode_t* mode) override;
+                status_t    setDualMonoMode(audio_dual_mono_mode_t mode) override;
+                status_t    getAudioDescriptionMixLevel(float* leveldB) override;
+                status_t    setAudioDescriptionMixLevel(float leveldB) override;
+                status_t    getPlaybackRateParameters(audio_playback_rate_t* playbackRate) override;
+                status_t    setPlaybackRateParameters(
+                        const audio_playback_rate_t& playbackRate) override;
 
         virtual status_t onTransact(
             uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags);