diff --git a/media/libaudioclient/AidlConversion.cpp b/media/libaudioclient/AidlConversion.cpp
index 0803695..0107bd4 100644
--- a/media/libaudioclient/AidlConversion.cpp
+++ b/media/libaudioclient/AidlConversion.cpp
@@ -1491,23 +1491,23 @@
 }
 
 ConversionResult<audio_port_config_device_ext>
-aidl2legacy_AudioPortConfigDeviceExt_audio_port_config_device_ext(
-        const media::AudioPortConfigDeviceExt& aidl) {
+aidl2legacy_AudioDevice_audio_port_config_device_ext(
+        const AudioDevice& aidl, const media::AudioPortDeviceExtSys& aidlDeviceExt) {
     audio_port_config_device_ext legacy;
-    legacy.hw_module = VALUE_OR_RETURN(aidl2legacy_int32_t_audio_module_handle_t(aidl.hwModule));
-    RETURN_IF_ERROR(aidl2legacy_AudioDevice_audio_device(
-                    aidl.device, &legacy.type, legacy.address));
+    legacy.hw_module = VALUE_OR_RETURN(
+            aidl2legacy_int32_t_audio_module_handle_t(aidlDeviceExt.hwModule));
+    RETURN_IF_ERROR(aidl2legacy_AudioDevice_audio_device(aidl, &legacy.type, legacy.address));
     return legacy;
 }
 
-ConversionResult<media::AudioPortConfigDeviceExt>
-legacy2aidl_audio_port_config_device_ext_AudioPortConfigDeviceExt(
-        const audio_port_config_device_ext& legacy) {
-    media::AudioPortConfigDeviceExt aidl;
-    aidl.hwModule = VALUE_OR_RETURN(legacy2aidl_audio_module_handle_t_int32_t(legacy.hw_module));
-    aidl.device = VALUE_OR_RETURN(legacy2aidl_audio_device_AudioDevice(
-                    legacy.type, legacy.address));
-    return aidl;
+status_t legacy2aidl_audio_port_config_device_ext_AudioDevice(
+        const audio_port_config_device_ext& legacy,
+        AudioDevice* aidl, media::AudioPortDeviceExtSys* aidlDeviceExt) {
+    aidlDeviceExt->hwModule = VALUE_OR_RETURN_STATUS(
+            legacy2aidl_audio_module_handle_t_int32_t(legacy.hw_module));
+    *aidl = VALUE_OR_RETURN_STATUS(
+            legacy2aidl_audio_device_AudioDevice(legacy.type, legacy.address));
+    return OK;
 }
 
 ConversionResult<audio_stream_type_t> aidl2legacy_AudioStreamType_audio_stream_type_t(
@@ -1675,8 +1675,8 @@
 // This type is unnamed in the original definition, thus we name it here.
 using audio_port_config_mix_ext_usecase = decltype(audio_port_config_mix_ext::usecase);
 
-ConversionResult<audio_port_config_mix_ext_usecase> aidl2legacy_AudioPortConfigMixExtUseCase(
-        const media::AudioPortConfigMixExtUseCase& aidl, media::AudioPortRole role) {
+ConversionResult<audio_port_config_mix_ext_usecase> aidl2legacy_AudioPortMixExtUseCase(
+        const media::AudioPortMixExtUseCase& aidl, media::AudioPortRole role) {
     audio_port_config_mix_ext_usecase legacy;
 
     switch (role) {
@@ -1700,9 +1700,9 @@
     LOG_ALWAYS_FATAL("Shouldn't get here"); // with -Werror,-Wswitch may compile-time fail
 }
 
-ConversionResult<media::AudioPortConfigMixExtUseCase> legacy2aidl_AudioPortConfigMixExtUseCase(
+ConversionResult<media::AudioPortMixExtUseCase> legacy2aidl_AudioPortMixExtUseCase(
         const audio_port_config_mix_ext_usecase& legacy, audio_port_role_t role) {
-    media::AudioPortConfigMixExtUseCase aidl;
+    media::AudioPortMixExtUseCase aidl;
 
     switch (role) {
         case AUDIO_PORT_ROLE_NONE:
@@ -1722,46 +1722,47 @@
     LOG_ALWAYS_FATAL("Shouldn't get here"); // with -Werror,-Wswitch may compile-time fail
 }
 
-ConversionResult<audio_port_config_mix_ext> aidl2legacy_AudioPortConfigMixExt(
-        const media::AudioPortConfigMixExt& aidl, media::AudioPortRole role) {
+ConversionResult<audio_port_config_mix_ext> aidl2legacy_AudioPortMixExt(
+        const media::AudioPortMixExt& aidl, media::AudioPortRole role,
+        const media::AudioPortMixExtSys& aidlMixExt) {
     audio_port_config_mix_ext legacy;
-    legacy.hw_module = VALUE_OR_RETURN(aidl2legacy_int32_t_audio_module_handle_t(aidl.hwModule));
+    legacy.hw_module = VALUE_OR_RETURN(
+            aidl2legacy_int32_t_audio_module_handle_t(aidlMixExt.hwModule));
     legacy.handle = VALUE_OR_RETURN(aidl2legacy_int32_t_audio_io_handle_t(aidl.handle));
-    legacy.usecase = VALUE_OR_RETURN(aidl2legacy_AudioPortConfigMixExtUseCase(aidl.usecase, role));
+    legacy.usecase = VALUE_OR_RETURN(aidl2legacy_AudioPortMixExtUseCase(aidl.usecase, role));
     return legacy;
 }
 
-ConversionResult<media::AudioPortConfigMixExt> legacy2aidl_AudioPortConfigMixExt(
-        const audio_port_config_mix_ext& legacy, audio_port_role_t role) {
-    media::AudioPortConfigMixExt aidl;
-    aidl.hwModule = VALUE_OR_RETURN(legacy2aidl_audio_module_handle_t_int32_t(legacy.hw_module));
-    aidl.handle = VALUE_OR_RETURN(legacy2aidl_audio_io_handle_t_int32_t(legacy.handle));
-    aidl.usecase = VALUE_OR_RETURN(legacy2aidl_AudioPortConfigMixExtUseCase(legacy.usecase, role));
-    return aidl;
+status_t legacy2aidl_AudioPortMixExt(
+        const audio_port_config_mix_ext& legacy, audio_port_role_t role,
+        media::AudioPortMixExt* aidl, media::AudioPortMixExtSys* aidlMixExt) {
+    aidlMixExt->hwModule = VALUE_OR_RETURN_STATUS(
+            legacy2aidl_audio_module_handle_t_int32_t(legacy.hw_module));
+    aidl->handle = VALUE_OR_RETURN_STATUS(legacy2aidl_audio_io_handle_t_int32_t(legacy.handle));
+    aidl->usecase = VALUE_OR_RETURN_STATUS(
+            legacy2aidl_AudioPortMixExtUseCase(legacy.usecase, role));
+    return OK;
 }
 
 ConversionResult<audio_port_config_session_ext>
-aidl2legacy_AudioPortConfigSessionExt_audio_port_config_session_ext(
-        const media::AudioPortConfigSessionExt& aidl) {
+aidl2legacy_int32_t_audio_port_config_session_ext(int32_t aidl) {
     audio_port_config_session_ext legacy;
-    legacy.session = VALUE_OR_RETURN(aidl2legacy_int32_t_audio_session_t(aidl.session));
+    legacy.session = VALUE_OR_RETURN(aidl2legacy_int32_t_audio_session_t(aidl));
     return legacy;
 }
 
-ConversionResult<media::AudioPortConfigSessionExt>
-legacy2aidl_audio_port_config_session_ext_AudioPortConfigSessionExt(
+ConversionResult<int32_t>
+legacy2aidl_audio_port_config_session_ext_int32_t(
         const audio_port_config_session_ext& legacy) {
-    media::AudioPortConfigSessionExt aidl;
-    aidl.session = VALUE_OR_RETURN(legacy2aidl_audio_session_t_int32_t(legacy.session));
-    return aidl;
+    return legacy2aidl_audio_session_t_int32_t(legacy.session);
 }
 
 // This type is unnamed in the original definition, thus we name it here.
 using audio_port_config_ext = decltype(audio_port_config::ext);
 
-ConversionResult<audio_port_config_ext> aidl2legacy_AudioPortConfigExt(
-        const media::AudioPortConfigExt& aidl, media::AudioPortType type,
-        media::AudioPortRole role) {
+ConversionResult<audio_port_config_ext> aidl2legacy_AudioPortExt_audio_port_config_ext(
+        const media::AudioPortExt& aidl, media::AudioPortType type,
+        media::AudioPortRole role, const media::AudioPortExtSys& aidlSys) {
     audio_port_config_ext legacy;
     switch (type) {
         case media::AudioPortType::NONE:
@@ -1770,16 +1771,19 @@
             return legacy;
         case media::AudioPortType::DEVICE:
             legacy.device = VALUE_OR_RETURN(
-                    aidl2legacy_AudioPortConfigDeviceExt_audio_port_config_device_ext(
-                            VALUE_OR_RETURN(UNION_GET(aidl, device))));
+                    aidl2legacy_AudioDevice_audio_port_config_device_ext(
+                            VALUE_OR_RETURN(UNION_GET(aidl, device)),
+                            VALUE_OR_RETURN(UNION_GET(aidlSys, device))));
             return legacy;
         case media::AudioPortType::MIX:
             legacy.mix = VALUE_OR_RETURN(
-                    aidl2legacy_AudioPortConfigMixExt(VALUE_OR_RETURN(UNION_GET(aidl, mix)), role));
+                    aidl2legacy_AudioPortMixExt(
+                            VALUE_OR_RETURN(UNION_GET(aidl, mix)), role,
+                            VALUE_OR_RETURN(UNION_GET(aidlSys, mix))));
             return legacy;
         case media::AudioPortType::SESSION:
             legacy.session = VALUE_OR_RETURN(
-                    aidl2legacy_AudioPortConfigSessionExt_audio_port_config_session_ext(
+                    aidl2legacy_int32_t_audio_port_config_session_ext(
                             VALUE_OR_RETURN(UNION_GET(aidl, session))));
             return legacy;
 
@@ -1787,30 +1791,37 @@
     LOG_ALWAYS_FATAL("Shouldn't get here"); // with -Werror,-Wswitch may compile-time fail
 }
 
-ConversionResult<media::AudioPortConfigExt> legacy2aidl_AudioPortConfigExt(
-        const audio_port_config_ext& legacy, audio_port_type_t type, audio_port_role_t role) {
-    media::AudioPortConfigExt aidl;
-
+status_t legacy2aidl_AudioPortExt(
+        const audio_port_config_ext& legacy, audio_port_type_t type, audio_port_role_t role,
+        media::AudioPortExt* aidl, media::AudioPortExtSys* aidlSys) {
     switch (type) {
         case AUDIO_PORT_TYPE_NONE:
-            UNION_SET(aidl, unspecified, false);
-            return aidl;
-        case AUDIO_PORT_TYPE_DEVICE:
-            UNION_SET(aidl, device,
-                      VALUE_OR_RETURN(
-                        legacy2aidl_audio_port_config_device_ext_AudioPortConfigDeviceExt(
-                          legacy.device)));
-            return aidl;
-        case AUDIO_PORT_TYPE_MIX:
-            UNION_SET(aidl, mix,
-                      VALUE_OR_RETURN(legacy2aidl_AudioPortConfigMixExt(legacy.mix, role)));
-            return aidl;
+            UNION_SET(*aidl, unspecified, false);
+            UNION_SET(*aidlSys, unspecified, false);
+            return OK;
+        case AUDIO_PORT_TYPE_DEVICE: {
+            AudioDevice device;
+            media::AudioPortDeviceExtSys deviceSys;
+            RETURN_STATUS_IF_ERROR(
+                    legacy2aidl_audio_port_config_device_ext_AudioDevice(
+                            legacy.device, &device, &deviceSys));
+            UNION_SET(*aidl, device, device);
+            UNION_SET(*aidlSys, device, deviceSys);
+            return OK;
+        }
+        case AUDIO_PORT_TYPE_MIX: {
+            media::AudioPortMixExt mix;
+            media::AudioPortMixExtSys mixSys;
+            RETURN_STATUS_IF_ERROR(legacy2aidl_AudioPortMixExt(legacy.mix, role, &mix, &mixSys));
+            UNION_SET(*aidl, mix, mix);
+            UNION_SET(*aidlSys, mix, mixSys);
+            return OK;
+        }
         case AUDIO_PORT_TYPE_SESSION:
-            UNION_SET(aidl, session,
-                      VALUE_OR_RETURN(
-                        legacy2aidl_audio_port_config_session_ext_AudioPortConfigSessionExt(
-                          legacy.session)));
-            return aidl;
+            UNION_SET(*aidl, session, VALUE_OR_RETURN_STATUS(
+                            legacy2aidl_audio_port_config_session_ext_int32_t(legacy.session)));
+            UNION_SET(*aidlSys, unspecified, false);
+            return OK;
     }
     LOG_ALWAYS_FATAL("Shouldn't get here"); // with -Werror,-Wswitch may compile-time fail
 }
@@ -1849,7 +1860,9 @@
                 aidl2legacy_AudioIoFlags_audio_io_flags(aidl.flags.value(), aidl.role, aidl.type));
         legacy.config_mask |= AUDIO_PORT_CONFIG_FLAGS;
     }
-    legacy.ext = VALUE_OR_RETURN(aidl2legacy_AudioPortConfigExt(aidl.ext, aidl.type, aidl.role));
+    legacy.ext = VALUE_OR_RETURN(
+            aidl2legacy_AudioPortExt_audio_port_config_ext(
+                    aidl.ext, aidl.type, aidl.role, aidl.extSys));
     return legacy;
 }
 
@@ -1882,8 +1895,8 @@
         aidl.flags = VALUE_OR_RETURN(
                 legacy2aidl_audio_io_flags_AudioIoFlags(legacy.flags, legacy.role, legacy.type));
     }
-    aidl.ext =
-            VALUE_OR_RETURN(legacy2aidl_AudioPortConfigExt(legacy.ext, legacy.type, legacy.role));
+    RETURN_IF_ERROR(legacy2aidl_AudioPortExt(legacy.ext, legacy.type, legacy.role,
+                    &aidl.ext, &aidl.extSys));
     return aidl;
 }
 
@@ -2560,66 +2573,70 @@
 }
 
 ConversionResult<audio_port_device_ext>
-aidl2legacy_AudioPortDeviceExt_audio_port_device_ext(const media::AudioPortDeviceExt& aidl) {
+aidl2legacy_AudioDevice_audio_port_device_ext(
+        const AudioDevice& aidl, const media::AudioPortDeviceExtSys& aidlSys) {
     audio_port_device_ext legacy;
-    legacy.hw_module = VALUE_OR_RETURN(aidl2legacy_int32_t_audio_module_handle_t(aidl.hwModule));
-    RETURN_IF_ERROR(aidl2legacy_AudioDevice_audio_device(
-                    aidl.device, &legacy.type, legacy.address));
+    legacy.hw_module = VALUE_OR_RETURN(
+            aidl2legacy_int32_t_audio_module_handle_t(aidlSys.hwModule));
+    RETURN_IF_ERROR(aidl2legacy_AudioDevice_audio_device(aidl, &legacy.type, legacy.address));
     legacy.encapsulation_modes = VALUE_OR_RETURN(
-            aidl2legacy_AudioEncapsulationMode_mask(aidl.encapsulationModes));
+            aidl2legacy_AudioEncapsulationMode_mask(aidlSys.encapsulationModes));
     legacy.encapsulation_metadata_types = VALUE_OR_RETURN(
-            aidl2legacy_AudioEncapsulationMetadataType_mask(aidl.encapsulationMetadataTypes));
+            aidl2legacy_AudioEncapsulationMetadataType_mask(
+                    aidlSys.encapsulationMetadataTypes));
     return legacy;
 }
 
-ConversionResult<media::AudioPortDeviceExt>
-legacy2aidl_audio_port_device_ext_AudioPortDeviceExt(const audio_port_device_ext& legacy) {
-    media::AudioPortDeviceExt aidl;
-    aidl.hwModule = VALUE_OR_RETURN(legacy2aidl_audio_module_handle_t_int32_t(legacy.hw_module));
-    aidl.device = VALUE_OR_RETURN(legacy2aidl_audio_device_AudioDevice(
-                    legacy.type, legacy.address));
-    aidl.encapsulationModes = VALUE_OR_RETURN(
+status_t legacy2aidl_audio_port_device_ext_AudioDevice(
+        const audio_port_device_ext& legacy,
+        AudioDevice* aidl, media::AudioPortDeviceExtSys* aidlDeviceExt) {
+    aidlDeviceExt->hwModule = VALUE_OR_RETURN_STATUS(
+            legacy2aidl_audio_module_handle_t_int32_t(legacy.hw_module));
+    *aidl = VALUE_OR_RETURN_STATUS(
+            legacy2aidl_audio_device_AudioDevice(legacy.type, legacy.address));
+    aidlDeviceExt->encapsulationModes = VALUE_OR_RETURN_STATUS(
             legacy2aidl_AudioEncapsulationMode_mask(legacy.encapsulation_modes));
-    aidl.encapsulationMetadataTypes = VALUE_OR_RETURN(
+    aidlDeviceExt->encapsulationMetadataTypes = VALUE_OR_RETURN_STATUS(
             legacy2aidl_AudioEncapsulationMetadataType_mask(legacy.encapsulation_metadata_types));
-    return aidl;
+    return OK;
 }
 
 ConversionResult<audio_port_mix_ext>
-aidl2legacy_AudioPortMixExt_audio_port_mix_ext(const media::AudioPortMixExt& aidl) {
+aidl2legacy_AudioPortMixExt_audio_port_mix_ext(
+        const media::AudioPortMixExt& aidl, const media::AudioPortMixExtSys& aidlSys) {
     audio_port_mix_ext legacy{};
-    legacy.hw_module = VALUE_OR_RETURN(aidl2legacy_int32_t_audio_module_handle_t(aidl.hwModule));
+    legacy.hw_module = VALUE_OR_RETURN(aidl2legacy_int32_t_audio_module_handle_t(aidlSys.hwModule));
     legacy.handle = VALUE_OR_RETURN(aidl2legacy_int32_t_audio_io_handle_t(aidl.handle));
     return legacy;
 }
 
-ConversionResult<media::AudioPortMixExt>
-legacy2aidl_audio_port_mix_ext_AudioPortMixExt(const audio_port_mix_ext& legacy) {
-    media::AudioPortMixExt aidl;
-    aidl.hwModule = VALUE_OR_RETURN(legacy2aidl_audio_module_handle_t_int32_t(legacy.hw_module));
-    aidl.handle = VALUE_OR_RETURN(legacy2aidl_audio_io_handle_t_int32_t(legacy.handle));
-    return aidl;
+status_t
+legacy2aidl_audio_port_mix_ext_AudioPortMixExt(const audio_port_mix_ext& legacy,
+        media::AudioPortMixExt* aidl, media::AudioPortMixExtSys* aidlMixExt) {
+    aidlMixExt->hwModule = VALUE_OR_RETURN_STATUS(
+            legacy2aidl_audio_module_handle_t_int32_t(legacy.hw_module));
+    aidl->handle = VALUE_OR_RETURN_STATUS(legacy2aidl_audio_io_handle_t_int32_t(legacy.handle));
+    return OK;
 }
 
 ConversionResult<audio_port_session_ext>
-aidl2legacy_AudioPortSessionExt_audio_port_session_ext(const media::AudioPortSessionExt& aidl) {
+aidl2legacy_int32_t_audio_port_session_ext(int32_t aidl) {
     audio_port_session_ext legacy;
-    legacy.session = VALUE_OR_RETURN(aidl2legacy_int32_t_audio_session_t(aidl.session));
+    legacy.session = VALUE_OR_RETURN(aidl2legacy_int32_t_audio_session_t(aidl));
     return legacy;
 }
 
-ConversionResult<media::AudioPortSessionExt>
-legacy2aidl_audio_port_session_ext_AudioPortSessionExt(const audio_port_session_ext& legacy) {
-    media::AudioPortSessionExt aidl;
-    aidl.session = VALUE_OR_RETURN(legacy2aidl_audio_session_t_int32_t(legacy.session));
-    return aidl;
+ConversionResult<int32_t>
+legacy2aidl_audio_port_session_ext_int32_t(const audio_port_session_ext& legacy) {
+    return legacy2aidl_audio_session_t_int32_t(legacy.session);
 }
 
 // This type is unnamed in the original definition, thus we name it here.
 using audio_port_v7_ext = decltype(audio_port_v7::ext);
 
-ConversionResult<audio_port_v7_ext> aidl2legacy_AudioPortExt(
-        const media::AudioPortExt& aidl, media::AudioPortType type) {
+ConversionResult<audio_port_v7_ext> aidl2legacy_AudioPortExt_audio_port_v7_ext(
+        const media::AudioPortExt& aidl, media::AudioPortType type,
+        const media::AudioPortExtSys& aidlSys) {
     audio_port_v7_ext legacy;
     switch (type) {
         case media::AudioPortType::NONE:
@@ -2628,44 +2645,59 @@
             return legacy;
         case media::AudioPortType::DEVICE:
             legacy.device = VALUE_OR_RETURN(
-                    aidl2legacy_AudioPortDeviceExt_audio_port_device_ext(
-                            VALUE_OR_RETURN(UNION_GET(aidl, device))));
+                    aidl2legacy_AudioDevice_audio_port_device_ext(
+                            VALUE_OR_RETURN(UNION_GET(aidl, device)),
+                            VALUE_OR_RETURN(UNION_GET(aidlSys, device))));
             return legacy;
         case media::AudioPortType::MIX:
             legacy.mix = VALUE_OR_RETURN(
                     aidl2legacy_AudioPortMixExt_audio_port_mix_ext(
-                            VALUE_OR_RETURN(UNION_GET(aidl, mix))));
+                            VALUE_OR_RETURN(UNION_GET(aidl, mix)),
+                            VALUE_OR_RETURN(UNION_GET(aidlSys, mix))));
             return legacy;
         case media::AudioPortType::SESSION:
-            legacy.session = VALUE_OR_RETURN(aidl2legacy_AudioPortSessionExt_audio_port_session_ext(
-                    VALUE_OR_RETURN(UNION_GET(aidl, session))));
+            legacy.session = VALUE_OR_RETURN(
+                    aidl2legacy_int32_t_audio_port_session_ext(
+                            VALUE_OR_RETURN(UNION_GET(aidl, session))));
             return legacy;
 
     }
     LOG_ALWAYS_FATAL("Shouldn't get here"); // with -Werror,-Wswitch may compile-time fail
 }
 
-ConversionResult<media::AudioPortExt> legacy2aidl_AudioPortExt(
-        const audio_port_v7_ext& legacy, audio_port_type_t type) {
-    media::AudioPortExt aidl;
+status_t legacy2aidl_AudioPortExt(
+        const audio_port_v7_ext& legacy, audio_port_type_t type,
+        media::AudioPortExt* aidl, media::AudioPortExtSys* aidlSys) {
     switch (type) {
         case AUDIO_PORT_TYPE_NONE:
-            UNION_SET(aidl, unspecified, false);
-            return aidl;
-        case AUDIO_PORT_TYPE_DEVICE:
-            UNION_SET(aidl, device,
-                      VALUE_OR_RETURN(
-                              legacy2aidl_audio_port_device_ext_AudioPortDeviceExt(legacy.device)));
-            return aidl;
-        case AUDIO_PORT_TYPE_MIX:
-            UNION_SET(aidl, mix,
-                      VALUE_OR_RETURN(legacy2aidl_audio_port_mix_ext_AudioPortMixExt(legacy.mix)));
-            return aidl;
+            UNION_SET(*aidl, unspecified, false);
+            UNION_SET(*aidlSys, unspecified, false);
+            return OK;
+        case AUDIO_PORT_TYPE_DEVICE: {
+            AudioDevice device;
+            media::AudioPortDeviceExtSys deviceSys;
+            RETURN_STATUS_IF_ERROR(
+                    legacy2aidl_audio_port_device_ext_AudioDevice(
+                            legacy.device, &device, &deviceSys));
+            UNION_SET(*aidl, device, device);
+            UNION_SET(*aidlSys, device, deviceSys);
+            return OK;
+        }
+        case AUDIO_PORT_TYPE_MIX: {
+            media::AudioPortMixExt mix;
+            media::AudioPortMixExtSys mixSys;
+            RETURN_STATUS_IF_ERROR(
+                    legacy2aidl_audio_port_mix_ext_AudioPortMixExt(
+                            legacy.mix, &mix, &mixSys));
+            UNION_SET(*aidl, mix, mix);
+            UNION_SET(*aidlSys, mix, mixSys);
+            return OK;
+        }
         case AUDIO_PORT_TYPE_SESSION:
-            UNION_SET(aidl, session,
-                      VALUE_OR_RETURN(legacy2aidl_audio_port_session_ext_AudioPortSessionExt(
-                              legacy.session)));
-            return aidl;
+            UNION_SET(*aidl, session, VALUE_OR_RETURN_STATUS(
+                            legacy2aidl_audio_port_session_ext_int32_t(legacy.session)));
+            UNION_SET(*aidlSys, unspecified, false);
+            return OK;
     }
     LOG_ALWAYS_FATAL("Shouldn't get here"); // with -Werror,-Wswitch may compile-time fail
 }
@@ -2795,7 +2827,8 @@
 
     legacy.active_config = VALUE_OR_RETURN(
             aidl2legacy_AudioPortConfig_audio_port_config(aidl.activeConfig));
-    legacy.ext = VALUE_OR_RETURN(aidl2legacy_AudioPortExt(aidl.ext, aidl.type));
+    legacy.ext = VALUE_OR_RETURN(
+            aidl2legacy_AudioPortExt_audio_port_v7_ext(aidl.ext, aidl.type, aidl.extSys));
     return legacy;
 }
 
@@ -2841,7 +2874,8 @@
 
     aidl.activeConfig = VALUE_OR_RETURN(
             legacy2aidl_audio_port_config_AudioPortConfig(legacy.active_config));
-    aidl.ext = VALUE_OR_RETURN(legacy2aidl_AudioPortExt(legacy.ext, legacy.type));
+    RETURN_IF_ERROR(
+            legacy2aidl_AudioPortExt(legacy.ext, legacy.type, &aidl.ext, &aidl.extSys));
     return aidl;
 }
 
diff --git a/media/libaudioclient/Android.bp b/media/libaudioclient/Android.bp
index 3ba1fc2..3c8796e 100644
--- a/media/libaudioclient/Android.bp
+++ b/media/libaudioclient/Android.bp
@@ -324,16 +324,13 @@
         "aidl/android/media/AudioPlaybackRate.aidl",
         "aidl/android/media/AudioPort.aidl",
         "aidl/android/media/AudioPortConfig.aidl",
-        "aidl/android/media/AudioPortConfigDeviceExt.aidl",
-        "aidl/android/media/AudioPortConfigExt.aidl",
-        "aidl/android/media/AudioPortConfigMixExt.aidl",
-        "aidl/android/media/AudioPortConfigMixExtUseCase.aidl",
-        "aidl/android/media/AudioPortConfigSessionExt.aidl",
-        "aidl/android/media/AudioPortDeviceExt.aidl",
+        "aidl/android/media/AudioPortDeviceExtSys.aidl",
         "aidl/android/media/AudioPortExt.aidl",
+        "aidl/android/media/AudioPortExtSys.aidl",
         "aidl/android/media/AudioPortMixExt.aidl",
+        "aidl/android/media/AudioPortMixExtSys.aidl",
+        "aidl/android/media/AudioPortMixExtUseCase.aidl",
         "aidl/android/media/AudioPortRole.aidl",
-        "aidl/android/media/AudioPortSessionExt.aidl",
         "aidl/android/media/AudioPortType.aidl",
         "aidl/android/media/AudioProfileSys.aidl",
         "aidl/android/media/AudioStandard.aidl",
diff --git a/media/libaudioclient/AudioSystem.cpp b/media/libaudioclient/AudioSystem.cpp
index 377af28..d9b4285 100644
--- a/media/libaudioclient/AudioSystem.cpp
+++ b/media/libaudioclient/AudioSystem.cpp
@@ -50,7 +50,6 @@
 using media::audio::common::AudioConfig;
 using media::audio::common::AudioConfigBase;
 using media::audio::common::AudioDevice;
-using media::audio::common::AudioDeviceAddress;
 using media::audio::common::AudioDeviceDescription;
 using media::audio::common::AudioFormatDescription;
 using media::audio::common::AudioMMapPolicyInfo;
diff --git a/media/libaudioclient/aidl/android/media/AudioPort.aidl b/media/libaudioclient/aidl/android/media/AudioPort.aidl
index 92b88ed..76e55b9 100644
--- a/media/libaudioclient/aidl/android/media/AudioPort.aidl
+++ b/media/libaudioclient/aidl/android/media/AudioPort.aidl
@@ -19,6 +19,7 @@
 import android.media.AudioGainSys;
 import android.media.AudioPortConfig;
 import android.media.AudioPortExt;
+import android.media.AudioPortExtSys;
 import android.media.AudioPortRole;
 import android.media.AudioPortType;
 import android.media.AudioProfileSys;
@@ -53,4 +54,5 @@
     /** Current audio port configuration. */
     AudioPortConfig activeConfig;
     AudioPortExt ext;
+    AudioPortExtSys extSys;
 }
diff --git a/media/libaudioclient/aidl/android/media/AudioPortConfig.aidl b/media/libaudioclient/aidl/android/media/AudioPortConfig.aidl
index 4e1520c..ffeb905 100644
--- a/media/libaudioclient/aidl/android/media/AudioPortConfig.aidl
+++ b/media/libaudioclient/aidl/android/media/AudioPortConfig.aidl
@@ -17,7 +17,8 @@
 package android.media;
 
 import android.media.AudioIoFlags;
-import android.media.AudioPortConfigExt;
+import android.media.AudioPortExt;
+import android.media.AudioPortExtSys;
 import android.media.AudioPortRole;
 import android.media.AudioPortType;
 import android.media.Int;
@@ -48,5 +49,6 @@
     @nullable AudioGainConfig gain;
     /** Framework only: HW_AV_SYNC, DIRECT, ... Can be left unspecified. */
     @nullable AudioIoFlags flags;
-    AudioPortConfigExt ext;
+    AudioPortExt ext;
+    AudioPortExtSys extSys;
 }
diff --git a/media/libaudioclient/aidl/android/media/AudioPortConfigDeviceExt.aidl b/media/libaudioclient/aidl/android/media/AudioPortConfigDeviceExt.aidl
deleted file mode 100644
index 640a63b..0000000
--- a/media/libaudioclient/aidl/android/media/AudioPortConfigDeviceExt.aidl
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.media;
-
-import android.media.audio.common.AudioDevice;
-
-/**
- * {@hide}
- */
-parcelable AudioPortConfigDeviceExt {
-    /**
-     * Module the device is attached to.
-     * Interpreted as audio_module_handle_t.
-     */
-    int hwModule;
-    /**
-     * Audio device instance.
-     */
-    AudioDevice device;
-}
diff --git a/media/libaudioclient/aidl/android/media/AudioPortConfigExt.aidl b/media/libaudioclient/aidl/android/media/AudioPortConfigExt.aidl
deleted file mode 100644
index 5d635b6..0000000
--- a/media/libaudioclient/aidl/android/media/AudioPortConfigExt.aidl
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.media;
-
-import android.media.AudioPortConfigDeviceExt;
-import android.media.AudioPortConfigMixExt;
-import android.media.AudioPortConfigSessionExt;
-
-/**
- * {@hide}
- */
-union AudioPortConfigExt {
-    /**
-     * This represents an empty union. Value is ignored.
-     * TODO(ytai): replace with the canonical representation for an empty union, as soon as it is
-     *             established.
-     */
-    boolean unspecified;
-    /** Device specific info. */
-    AudioPortConfigDeviceExt device;
-    /** Mix specific info. */
-    AudioPortConfigMixExt mix;
-    /** Session specific info. */
-    AudioPortConfigSessionExt session;
-}
diff --git a/media/libaudioclient/aidl/android/media/AudioPortConfigMixExt.aidl b/media/libaudioclient/aidl/android/media/AudioPortConfigMixExt.aidl
deleted file mode 100644
index d3226f2..0000000
--- a/media/libaudioclient/aidl/android/media/AudioPortConfigMixExt.aidl
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.media;
-
-import android.media.AudioPortConfigMixExtUseCase;
-
-/**
- * {@hide}
- */
-parcelable AudioPortConfigMixExt {
-    /**
-     * Module the stream is attached to.
-     * Interpreted as audio_module_handle_t.
-     */
-    int hwModule;
-    /**
-     * I/O handle of the input/output stream.
-     * Interpreted as audio_io_handle_t.
-     */
-    int handle;
-    AudioPortConfigMixExtUseCase usecase;
-}
diff --git a/media/libaudioclient/aidl/android/media/AudioPortDeviceExt.aidl b/media/libaudioclient/aidl/android/media/AudioPortDeviceExtSys.aidl
similarity index 84%
rename from media/libaudioclient/aidl/android/media/AudioPortDeviceExt.aidl
rename to media/libaudioclient/aidl/android/media/AudioPortDeviceExtSys.aidl
index c28d688..0f5a9b6 100644
--- a/media/libaudioclient/aidl/android/media/AudioPortDeviceExt.aidl
+++ b/media/libaudioclient/aidl/android/media/AudioPortDeviceExtSys.aidl
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020 The Android Open Source Project
+ * Copyright (C) 2021 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -16,15 +16,12 @@
 
 package android.media;
 
-import android.media.audio.common.AudioDevice;
-
 /**
  * {@hide}
  */
-parcelable AudioPortDeviceExt {
+parcelable AudioPortDeviceExtSys {
     /** Module the device is attached to. Interpreted as audio_module_handle_t. */
     int hwModule;
-    AudioDevice device;
     /** Bitmask, indexed by AudioEncapsulationMode. */
     int encapsulationModes;
     /** Bitmask, indexed by AudioEncapsulationMetadataType. */
diff --git a/media/libaudioclient/aidl/android/media/AudioPortExt.aidl b/media/libaudioclient/aidl/android/media/AudioPortExt.aidl
index 453784b..27693b2 100644
--- a/media/libaudioclient/aidl/android/media/AudioPortExt.aidl
+++ b/media/libaudioclient/aidl/android/media/AudioPortExt.aidl
@@ -16,9 +16,8 @@
 
 package android.media;
 
-import android.media.AudioPortDeviceExt;
 import android.media.AudioPortMixExt;
-import android.media.AudioPortSessionExt;
+import android.media.audio.common.AudioDevice;
 
 /**
  * {@hide}
@@ -30,10 +29,10 @@
      *             established.
      */
     boolean unspecified;
-    /** Device specific info. */
-    AudioPortDeviceExt device;
+    /** Audio device specification. */
+    AudioDevice device;
     /** Mix specific info. */
     AudioPortMixExt mix;
-    /** Session specific info. */
-    AudioPortSessionExt session;
+    /** Audio session identifier. */
+    int session;
 }
diff --git a/media/libaudioclient/aidl/android/media/AudioPortExtSys.aidl b/media/libaudioclient/aidl/android/media/AudioPortExtSys.aidl
new file mode 100644
index 0000000..2cdf4f6
--- /dev/null
+++ b/media/libaudioclient/aidl/android/media/AudioPortExtSys.aidl
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.media;
+
+import android.media.AudioPortDeviceExtSys;
+import android.media.AudioPortMixExtSys;
+
+/**
+ * {@hide}
+ */
+union AudioPortExtSys {
+    /**
+     * This represents an empty union. Value is ignored.
+     */
+    boolean unspecified;
+    /** System-only parameters when the port is an audio device. */
+    AudioPortDeviceExtSys device;
+    /** System-only parameters when the port is an audio mix. */
+    AudioPortMixExtSys mix;
+}
diff --git a/media/libaudioclient/aidl/android/media/AudioPortMixExt.aidl b/media/libaudioclient/aidl/android/media/AudioPortMixExt.aidl
index 8362c4f..d222d0a 100644
--- a/media/libaudioclient/aidl/android/media/AudioPortMixExt.aidl
+++ b/media/libaudioclient/aidl/android/media/AudioPortMixExt.aidl
@@ -16,12 +16,15 @@
 
 package android.media;
 
+import android.media.AudioPortMixExtUseCase;
+
 /**
  * {@hide}
  */
 parcelable AudioPortMixExt {
-    /** Module the stream is attached to. Interpreted as audio_module_handle_t. */
-    int hwModule;
-    /** I/O handle of the input/output stream. Interpreted as audio_io_handle_t. */
+    /**
+     * I/O handle of the input/output stream. Interpreted as audio_io_handle_t.
+     */
     int handle;
+    AudioPortMixExtUseCase usecase;
 }
diff --git a/media/libaudioclient/aidl/android/media/AudioPortConfigSessionExt.aidl b/media/libaudioclient/aidl/android/media/AudioPortMixExtSys.aidl
similarity index 76%
rename from media/libaudioclient/aidl/android/media/AudioPortConfigSessionExt.aidl
rename to media/libaudioclient/aidl/android/media/AudioPortMixExtSys.aidl
index a2cbf62..5999885 100644
--- a/media/libaudioclient/aidl/android/media/AudioPortConfigSessionExt.aidl
+++ b/media/libaudioclient/aidl/android/media/AudioPortMixExtSys.aidl
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2020 The Android Open Source Project
+ * Copyright (C) 2021 The Android Open Source Project
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -19,6 +19,7 @@
 /**
  * {@hide}
  */
-parcelable AudioPortConfigSessionExt {
-    int session;
+parcelable AudioPortMixExtSys {
+    /** Module the stream is attached to. Interpreted as audio_module_handle_t. */
+    int hwModule;
 }
diff --git a/media/libaudioclient/aidl/android/media/AudioPortConfigMixExtUseCase.aidl b/media/libaudioclient/aidl/android/media/AudioPortMixExtUseCase.aidl
similarity index 97%
rename from media/libaudioclient/aidl/android/media/AudioPortConfigMixExtUseCase.aidl
rename to media/libaudioclient/aidl/android/media/AudioPortMixExtUseCase.aidl
index 58bc1a5..77f2fbb 100644
--- a/media/libaudioclient/aidl/android/media/AudioPortConfigMixExtUseCase.aidl
+++ b/media/libaudioclient/aidl/android/media/AudioPortMixExtUseCase.aidl
@@ -22,7 +22,7 @@
 /**
  * {@hide}
  */
-union AudioPortConfigMixExtUseCase {
+union AudioPortMixExtUseCase {
     /**
      * This to be set if the containing config has the AudioPortRole::NONE role.
      * This represents an empty value (value is ignored).
diff --git a/media/libaudioclient/aidl/android/media/AudioPortSessionExt.aidl b/media/libaudioclient/aidl/android/media/AudioPortSessionExt.aidl
deleted file mode 100644
index dbca168..0000000
--- a/media/libaudioclient/aidl/android/media/AudioPortSessionExt.aidl
+++ /dev/null
@@ -1,25 +0,0 @@
-/*
- * Copyright (C) 2020 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package android.media;
-
-/**
- * {@hide}
- */
-parcelable AudioPortSessionExt {
-    /** Audio session. Interpreted as audio_session_t. */
-    int session;
-}
diff --git a/media/libaudioclient/include/media/AidlConversion.h b/media/libaudioclient/include/media/AidlConversion.h
index 7b5013d..30fd309 100644
--- a/media/libaudioclient/include/media/AidlConversion.h
+++ b/media/libaudioclient/include/media/AidlConversion.h
@@ -31,10 +31,9 @@
 #include <android/media/AudioOutputFlags.h>
 #include <android/media/AudioPlaybackRate.h>
 #include <android/media/AudioPort.h>
-#include <android/media/AudioPortDeviceExt.h>
+#include <android/media/AudioPortConfig.h>
+#include <android/media/AudioPortDeviceExtSys.h>
 #include <android/media/AudioPortExt.h>
-#include <android/media/AudioPortMixExt.h>
-#include <android/media/AudioPortSessionExt.h>
 #include <android/media/AudioTimestampInternal.h>
 #include <android/media/AudioUniqueIdUse.h>
 #include <android/media/EffectDescriptor.h>
@@ -198,11 +197,12 @@
         const audio_io_flags& legacy, audio_port_role_t role, audio_port_type_t type);
 
 ConversionResult<audio_port_config_device_ext>
-aidl2legacy_AudioPortConfigDeviceExt_audio_port_config_device_ext(
-        const media::AudioPortConfigDeviceExt& aidl);
-ConversionResult<media::AudioPortConfigDeviceExt>
-legacy2aidl_audio_port_config_device_ext_AudioPortConfigDeviceExt(
-        const audio_port_config_device_ext& legacy);
+aidl2legacy_AudioDevice_audio_port_config_device_ext(
+        const media::audio::common::AudioDevice& aidl,
+        const media::AudioPortDeviceExtSys& aidlDeviceExt);
+status_t legacy2aidl_audio_port_config_device_ext_AudioDevice(
+        const audio_port_config_device_ext& legacy,
+        media::audio::common::AudioDevice* aidl, media::AudioPortDeviceExtSys* aidlDeviceExt);
 
 ConversionResult<audio_stream_type_t> aidl2legacy_AudioStreamType_audio_stream_type_t(
         media::audio::common::AudioStreamType aidl);
@@ -218,16 +218,16 @@
 ConversionResult<audio_session_t> aidl2legacy_int32_t_audio_session_t(int32_t aidl);
 ConversionResult<int32_t> legacy2aidl_audio_session_t_int32_t(audio_session_t legacy);
 
-ConversionResult<audio_port_config_mix_ext> aidl2legacy_AudioPortConfigMixExt(
-        const media::AudioPortConfigMixExt& aidl, media::AudioPortRole role);
-ConversionResult<media::AudioPortConfigMixExt> legacy2aidl_AudioPortConfigMixExt(
-        const audio_port_config_mix_ext& legacy, audio_port_role_t role);
+ConversionResult<audio_port_config_mix_ext> aidl2legacy_AudioPortMixExt(
+        const media::AudioPortMixExt& aidl, media::AudioPortRole role,
+        const media::AudioPortMixExtSys& aidlMixExt);
+status_t legacy2aidl_AudioPortMixExt(
+        const audio_port_config_mix_ext& legacy, audio_port_role_t role,
+        media::AudioPortMixExt* aidl, media::AudioPortMixExtSys* aidlMixExt);
 
 ConversionResult<audio_port_config_session_ext>
-aidl2legacy_AudioPortConfigSessionExt_audio_port_config_session_ext(
-        const media::AudioPortConfigSessionExt& aidl);
-ConversionResult<media::AudioPortConfigSessionExt>
-legacy2aidl_audio_port_config_session_ext_AudioPortConfigSessionExt(
+aidl2legacy_int32_t_audio_port_config_session_ext(int32_t aidl);
+ConversionResult<int32_t> legacy2aidl_audio_port_config_session_ext_AudioPortConfigSessionExt(
         const audio_port_config_session_ext& legacy);
 
 ConversionResult<audio_port_config> aidl2legacy_AudioPortConfig_audio_port_config(
@@ -342,19 +342,27 @@
 legacy2aidl_AudioEncapsulationMetadataType_mask(uint32_t legacy);
 
 ConversionResult<audio_port_device_ext>
-aidl2legacy_AudioPortDeviceExt_audio_port_device_ext(const media::AudioPortDeviceExt& aidl);
-ConversionResult<media::AudioPortDeviceExt>
-legacy2aidl_audio_port_device_ext_AudioPortDeviceExt(const audio_port_device_ext& legacy);
+aidl2legacy_AudioDevice_audio_port_device_ext(
+        const media::audio::common::AudioDevice& aidl,
+        const media::AudioPortDeviceExtSys& aidlDeviceExt);
+status_t legacy2aidl_audio_port_device_ext_AudioDevice(
+        const audio_port_device_ext& legacy,
+        media::audio::common::AudioDevice* aidl,
+        media::AudioPortDeviceExtSys* aidlDeviceExt);
 
 ConversionResult<audio_port_mix_ext>
-aidl2legacy_AudioPortMixExt_audio_port_mix_ext(const media::AudioPortMixExt& aidl);
-ConversionResult<media::AudioPortMixExt>
-legacy2aidl_audio_port_mix_ext_AudioPortMixExt(const audio_port_mix_ext& legacy);
+aidl2legacy_AudioPortMixExt_audio_port_mix_ext(
+        const media::AudioPortMixExt& aidl,
+        const media::AudioPortMixExtSys& aidlMixExt);
+status_t legacy2aidl_audio_port_mix_ext_AudioPortMixExt(
+        const audio_port_mix_ext& legacy,
+        media::AudioPortMixExt* aidl,
+        media::AudioPortMixExtSys* aidlMixExt);
 
 ConversionResult<audio_port_session_ext>
-aidl2legacy_AudioPortSessionExt_audio_port_session_ext(const media::AudioPortSessionExt& aidl);
-ConversionResult<media::AudioPortSessionExt>
-legacy2aidl_audio_port_session_ext_AudioPortSessionExt(const audio_port_session_ext& legacy);
+aidl2legacy_int32_t_audio_port_session_ext(int32_t aidl);
+ConversionResult<int32_t>
+legacy2aidl_audio_port_session_ext_int32_t(const audio_port_session_ext& legacy);
 
 ConversionResult<audio_profile>
 aidl2legacy_AudioProfile_audio_profile(
diff --git a/media/libaudiofoundation/DeviceDescriptorBase.cpp b/media/libaudiofoundation/DeviceDescriptorBase.cpp
index 3cce722..2e9b005 100644
--- a/media/libaudiofoundation/DeviceDescriptorBase.cpp
+++ b/media/libaudiofoundation/DeviceDescriptorBase.cpp
@@ -169,13 +169,15 @@
     AudioPortConfig::writeToParcelable(&parcelable->activeConfig, useInputChannelMask());
     parcelable->id = VALUE_OR_RETURN_STATUS(legacy2aidl_audio_port_handle_t_int32_t(mId));
 
-    media::AudioPortDeviceExt ext;
-    ext.device = VALUE_OR_RETURN_STATUS(legacy2aidl_AudioDeviceTypeAddress(mDeviceTypeAddr));
-    ext.encapsulationModes = VALUE_OR_RETURN_STATUS(
+    media::audio::common::AudioDevice device = VALUE_OR_RETURN_STATUS(
+            legacy2aidl_AudioDeviceTypeAddress(mDeviceTypeAddr));
+    UNION_SET(parcelable->ext, device, device);
+    media::AudioPortDeviceExtSys deviceSys;
+    deviceSys.encapsulationModes = VALUE_OR_RETURN_STATUS(
             legacy2aidl_AudioEncapsulationMode_mask(mEncapsulationModes));
-    ext.encapsulationMetadataTypes = VALUE_OR_RETURN_STATUS(
+    deviceSys.encapsulationMetadataTypes = VALUE_OR_RETURN_STATUS(
             legacy2aidl_AudioEncapsulationMetadataType_mask(mEncapsulationMetadataTypes));
-    UNION_SET(parcelable->ext, device, std::move(ext));
+    UNION_SET(parcelable->extSys, device, deviceSys);
     return OK;
 }
 
@@ -195,13 +197,16 @@
         return status;
     }
 
-    media::AudioPortDeviceExt ext = VALUE_OR_RETURN_STATUS(UNION_GET(parcelable.ext, device));
+    media::audio::common::AudioDevice device = VALUE_OR_RETURN_STATUS(
+            UNION_GET(parcelable.ext, device));
     mDeviceTypeAddr = VALUE_OR_RETURN_STATUS(
-            aidl2legacy_AudioDeviceTypeAddress(ext.device));
+            aidl2legacy_AudioDeviceTypeAddress(device));
+    media::AudioPortDeviceExtSys deviceSys = VALUE_OR_RETURN_STATUS(
+            UNION_GET(parcelable.extSys, device));
     mEncapsulationModes = VALUE_OR_RETURN_STATUS(
-            aidl2legacy_AudioEncapsulationMode_mask(ext.encapsulationModes));
+            aidl2legacy_AudioEncapsulationMode_mask(deviceSys.encapsulationModes));
     mEncapsulationMetadataTypes = VALUE_OR_RETURN_STATUS(
-            aidl2legacy_AudioEncapsulationMetadataType_mask(ext.encapsulationMetadataTypes));
+            aidl2legacy_AudioEncapsulationMetadataType_mask(deviceSys.encapsulationMetadataTypes));
     return OK;
 }