diff --git a/services/audiopolicy/AudioPolicyInterface.h b/services/audiopolicy/AudioPolicyInterface.h
index 5524463..f7ffb6d 100644
--- a/services/audiopolicy/AudioPolicyInterface.h
+++ b/services/audiopolicy/AudioPolicyInterface.h
@@ -90,22 +90,27 @@
                                         audio_channel_mask_t channelMask,
                                         audio_output_flags_t flags,
                                         const audio_offload_info_t *offloadInfo) = 0;
-    virtual audio_io_handle_t getOutputForAttr(const audio_attributes_t *attr,
-                                                uint32_t samplingRate,
-                                                audio_format_t format,
-                                                audio_channel_mask_t channelMask,
-                                                audio_output_flags_t flags,
-                                                const audio_offload_info_t *offloadInfo) = 0;
+    virtual status_t getOutputForAttr(const audio_attributes_t *attr,
+                                        audio_io_handle_t *output,
+                                        audio_session_t session,
+                                        audio_stream_type_t *stream,
+                                        uint32_t samplingRate,
+                                        audio_format_t format,
+                                        audio_channel_mask_t channelMask,
+                                        audio_output_flags_t flags,
+                                        const audio_offload_info_t *offloadInfo) = 0;
     // indicates to the audio policy manager that the output starts being used by corresponding stream.
     virtual status_t startOutput(audio_io_handle_t output,
                                  audio_stream_type_t stream,
-                                 int session = 0) = 0;
+                                 audio_session_t session) = 0;
     // indicates to the audio policy manager that the output stops being used by corresponding stream.
     virtual status_t stopOutput(audio_io_handle_t output,
                                 audio_stream_type_t stream,
-                                int session = 0) = 0;
+                                audio_session_t session) = 0;
     // releases the output.
-    virtual void releaseOutput(audio_io_handle_t output) = 0;
+    virtual void releaseOutput(audio_io_handle_t output,
+                               audio_stream_type_t stream,
+                               audio_session_t session) = 0;
 
     // request an input appropriate for record from the supplied device with supplied parameters.
     virtual audio_io_handle_t getInput(audio_source_t inputSource,