diff --git a/include/media/IAudioPolicyService.h b/include/media/IAudioPolicyService.h
index 5637dd5..e8db4b1 100644
--- a/include/media/IAudioPolicyService.h
+++ b/include/media/IAudioPolicyService.h
@@ -63,12 +63,10 @@
                                       audio_session_t session,
                                       audio_stream_type_t *stream,
                                       uid_t uid,
-                                      uint32_t samplingRate = 0,
-                                      audio_format_t format = AUDIO_FORMAT_DEFAULT,
-                                      audio_channel_mask_t channelMask = 0,
-                                      audio_output_flags_t flags = AUDIO_OUTPUT_FLAG_NONE,
-                                      audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE,
-                                      const audio_offload_info_t *offloadInfo = NULL) = 0;
+                                      const audio_config_t *config,
+                                      audio_output_flags_t flags,
+                                      audio_port_handle_t selectedDeviceId,
+                                      audio_port_handle_t *portId) = 0;
     virtual status_t startOutput(audio_io_handle_t output,
                                  audio_stream_type_t stream,
                                  audio_session_t session) = 0;
@@ -83,11 +81,10 @@
                               audio_session_t session,
                               pid_t pid,
                               uid_t uid,
-                              uint32_t samplingRate,
-                              audio_format_t format,
-                              audio_channel_mask_t channelMask,
+                              const audio_config_base_t *config,
                               audio_input_flags_t flags,
-                              audio_port_handle_t selectedDeviceId = AUDIO_PORT_HANDLE_NONE) = 0;
+                              audio_port_handle_t selectedDeviceId,
+                              audio_port_handle_t *portId) = 0;
     virtual status_t startInput(audio_io_handle_t input,
                                 audio_session_t session) = 0;
     virtual status_t stopInput(audio_io_handle_t input,