audio: Use auto-generated MicrophoneInfoFw class

Replace use of manually written MicrophoneInfo class
with MicrophoneInfoFw which is generated automatically
from the AIDL definition.

Rename MicrophoneInfoData AIDL to MicrophoneInfoFw for
consistency with other framework-side AIDL types.
MicrophoneInfoFw is defined using stable shared data
types.

Bug: 263964254
Test: atest audio_aidl_conversion_tests
Change-Id: I93e4fe08fc294350c9b06f2959f84b24f31f6881
diff --git a/Android.bp b/Android.bp
index 5aa2029..37f6457 100644
--- a/Android.bp
+++ b/Android.bp
@@ -44,7 +44,7 @@
     srcs: [
         "aidl/android/media/InterpolatorConfig.aidl",
         "aidl/android/media/InterpolatorType.aidl",
-        "aidl/android/media/MicrophoneInfoData.aidl",
+        "aidl/android/media/MicrophoneInfoFw.aidl",
         "aidl/android/media/VolumeShaperConfiguration.aidl",
         "aidl/android/media/VolumeShaperConfigurationOptionFlag.aidl",
         "aidl/android/media/VolumeShaperConfigurationType.aidl",
@@ -52,6 +52,9 @@
         "aidl/android/media/VolumeShaperOperationFlag.aidl",
         "aidl/android/media/VolumeShaperState.aidl",
     ],
+    imports: [
+        "android.media.audio.common.types-V2",
+    ],
     backend: {
         cpp: {
             min_sdk_version: "29",
@@ -62,6 +65,9 @@
                 "com.android.media.swcodec",
             ],
         },
+        java: {
+            sdk_version: "module_current",
+        },
     },
 }
 
diff --git a/aidl/android/media/MicrophoneInfoData.aidl b/aidl/android/media/MicrophoneInfoFw.aidl
similarity index 62%
rename from aidl/android/media/MicrophoneInfoData.aidl
rename to aidl/android/media/MicrophoneInfoFw.aidl
index 747bfa5..bad0e0a 100644
--- a/aidl/android/media/MicrophoneInfoData.aidl
+++ b/aidl/android/media/MicrophoneInfoFw.aidl
@@ -16,24 +16,14 @@
 
 package android.media;
 
+import android.media.audio.common.MicrophoneDynamicInfo;
+import android.media.audio.common.MicrophoneInfo;
+
 /**
  * {@hide}
  */
-parcelable MicrophoneInfoData {
-    @utf8InCpp String deviceId;
+parcelable MicrophoneInfoFw {
+    MicrophoneInfo info;
+    MicrophoneDynamicInfo dynamic;
     int portId;
-    int type;
-    @utf8InCpp String address;
-    int deviceLocation;
-    int deviceGroup;
-    int indexInTheGroup;
-    float[] geometricLocation;
-    float[] orientation;
-    float[] frequencies;
-    float[] frequencyResponses;
-    int[] channelMapping;
-    float sensitivity;
-    float maxSpl;
-    float minSpl;
-    int directionality;
 }
diff --git a/include/media/MicrophoneInfo.h b/include/media/MicrophoneInfo.h
deleted file mode 100644
index 6d6c594..0000000
--- a/include/media/MicrophoneInfo.h
+++ /dev/null
@@ -1,239 +0,0 @@
-/*
- * Copyright (C) 2018 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.
- */
-
-#ifndef ANDROID_MICROPHONE_INFO_H
-#define ANDROID_MICROPHONE_INFO_H
-
-#include <android/media/MicrophoneInfoData.h>
-#include <binder/Parcel.h>
-#include <binder/Parcelable.h>
-#include <media/AidlConversionUtil.h>
-#include <system/audio.h>
-
-namespace android {
-namespace media {
-
-class MicrophoneInfo : public Parcelable {
-public:
-    MicrophoneInfo() = default;
-    MicrophoneInfo(const MicrophoneInfo& microphoneInfo) = default;
-    MicrophoneInfo(audio_microphone_characteristic_t& characteristic) {
-        mDeviceId = std::string(&characteristic.device_id[0]);
-        mPortId = characteristic.id;
-        mType = characteristic.device;
-        mAddress = std::string(&characteristic.address[0]);
-        mDeviceLocation = characteristic.location;
-        mDeviceGroup = characteristic.group;
-        mIndexInTheGroup = characteristic.index_in_the_group;
-        mGeometricLocation.push_back(characteristic.geometric_location.x);
-        mGeometricLocation.push_back(characteristic.geometric_location.y);
-        mGeometricLocation.push_back(characteristic.geometric_location.z);
-        mOrientation.push_back(characteristic.orientation.x);
-        mOrientation.push_back(characteristic.orientation.y);
-        mOrientation.push_back(characteristic.orientation.z);
-        std::vector<float> frequencies;
-        std::vector<float> responses;
-        for (size_t i = 0; i < characteristic.num_frequency_responses; i++) {
-            frequencies.push_back(characteristic.frequency_responses[0][i]);
-            responses.push_back(characteristic.frequency_responses[1][i]);
-        }
-        mFrequencyResponses.push_back(frequencies);
-        mFrequencyResponses.push_back(responses);
-        for (size_t i = 0; i < AUDIO_CHANNEL_COUNT_MAX; i++) {
-            mChannelMapping.push_back(characteristic.channel_mapping[i]);
-        }
-        mSensitivity = characteristic.sensitivity;
-        mMaxSpl = characteristic.max_spl;
-        mMinSpl = characteristic.min_spl;
-        mDirectionality = characteristic.directionality;
-    }
-
-    virtual ~MicrophoneInfo() = default;
-
-    virtual status_t writeToParcel(Parcel* parcel) const {
-        MicrophoneInfoData parcelable;
-        return writeToParcelable(&parcelable)
-               ?: parcelable.writeToParcel(parcel);
-    }
-
-    virtual status_t writeToParcelable(MicrophoneInfoData* parcelable) const {
-#if defined(BACKEND_NDK)
-        using ::aidl::android::convertReinterpret;
-#endif
-        parcelable->deviceId = mDeviceId;
-        parcelable->portId = mPortId;
-        parcelable->type = VALUE_OR_RETURN_STATUS(convertReinterpret<int32_t>(mType));
-        parcelable->address = mAddress;
-        parcelable->deviceGroup = mDeviceGroup;
-        parcelable->indexInTheGroup = mIndexInTheGroup;
-        parcelable->geometricLocation = mGeometricLocation;
-        parcelable->orientation = mOrientation;
-        if (mFrequencyResponses.size() != 2) {
-            return BAD_VALUE;
-        }
-        parcelable->frequencies = mFrequencyResponses[0];
-        parcelable->frequencyResponses = mFrequencyResponses[1];
-        parcelable->channelMapping = mChannelMapping;
-        parcelable->sensitivity = mSensitivity;
-        parcelable->maxSpl = mMaxSpl;
-        parcelable->minSpl = mMinSpl;
-        parcelable->directionality = mDirectionality;
-        return OK;
-    }
-
-    virtual status_t readFromParcel(const Parcel* parcel) {
-        MicrophoneInfoData data;
-        return data.readFromParcel(parcel)
-            ?: readFromParcelable(data);
-    }
-
-    virtual status_t readFromParcelable(const MicrophoneInfoData& parcelable) {
-#if defined(BACKEND_NDK)
-        using ::aidl::android::convertReinterpret;
-#endif
-        mDeviceId = parcelable.deviceId;
-        mPortId = parcelable.portId;
-        mType = VALUE_OR_RETURN_STATUS(convertReinterpret<uint32_t>(parcelable.type));
-        mAddress = parcelable.address;
-        mDeviceLocation = parcelable.deviceLocation;
-        mDeviceGroup = parcelable.deviceGroup;
-        mIndexInTheGroup = parcelable.indexInTheGroup;
-        if (parcelable.geometricLocation.size() != 3) {
-            return BAD_VALUE;
-        }
-        mGeometricLocation = parcelable.geometricLocation;
-        if (parcelable.orientation.size() != 3) {
-            return BAD_VALUE;
-        }
-        mOrientation = parcelable.orientation;
-        if (parcelable.frequencies.size() != parcelable.frequencyResponses.size()) {
-            return BAD_VALUE;
-        }
-
-        mFrequencyResponses.push_back(parcelable.frequencies);
-        mFrequencyResponses.push_back(parcelable.frequencyResponses);
-        if (parcelable.channelMapping.size() != AUDIO_CHANNEL_COUNT_MAX) {
-            return BAD_VALUE;
-        }
-        mChannelMapping = parcelable.channelMapping;
-        mSensitivity = parcelable.sensitivity;
-        mMaxSpl = parcelable.maxSpl;
-        mMinSpl = parcelable.minSpl;
-        mDirectionality = parcelable.directionality;
-        return OK;
-    }
-
-    std::string getDeviceId() const {
-        return mDeviceId;
-    }
-
-    int getPortId() const {
-        return mPortId;
-    }
-
-    unsigned int getType() const {
-        return mType;
-    }
-
-    std::string getAddress() const {
-        return mAddress;
-    }
-
-    int getDeviceLocation() const {
-        return mDeviceLocation;
-    }
-
-    int getDeviceGroup() const {
-        return mDeviceGroup;
-    }
-
-    int getIndexInTheGroup() const {
-        return mIndexInTheGroup;
-    }
-
-    const std::vector<float>& getGeometricLocation() const {
-        return mGeometricLocation;
-    }
-
-    const std::vector<float>& getOrientation() const {
-        return mOrientation;
-    }
-
-    const std::vector<std::vector<float>>& getFrequencyResponses() const {
-        return mFrequencyResponses;
-    }
-
-    const std::vector<int>& getChannelMapping() const {
-        return mChannelMapping;
-    }
-
-    float getSensitivity() const {
-        return mSensitivity;
-    }
-
-    float getMaxSpl() const {
-        return mMaxSpl;
-    }
-
-    float getMinSpl() const {
-        return mMinSpl;
-    }
-
-    int getDirectionality() const {
-        return mDirectionality;
-    }
-
-private:
-    std::string mDeviceId;
-    int32_t mPortId;
-    uint32_t mType;
-    std::string mAddress;
-    int32_t mDeviceLocation;
-    int32_t mDeviceGroup;
-    int32_t mIndexInTheGroup;
-    std::vector<float> mGeometricLocation;
-    std::vector<float> mOrientation;
-    std::vector<std::vector<float>> mFrequencyResponses;
-    std::vector<int> mChannelMapping;
-    float mSensitivity;
-    float mMaxSpl;
-    float mMinSpl;
-    int32_t mDirectionality;
-};
-
-#if defined(BACKEND_NDK)
-using ::aidl::ConversionResult;
-#endif
-
-// Conversion routines, according to AidlConversion.h conventions.
-inline ConversionResult<MicrophoneInfo>
-aidl2legacy_MicrophoneInfo(const media::MicrophoneInfoData& aidl) {
-    MicrophoneInfo legacy;
-    RETURN_IF_ERROR(legacy.readFromParcelable(aidl));
-    return legacy;
-}
-
-inline ConversionResult<media::MicrophoneInfoData>
-legacy2aidl_MicrophoneInfo(const MicrophoneInfo& legacy) {
-    media::MicrophoneInfoData aidl;
-    RETURN_IF_ERROR(legacy.writeToParcelable(&aidl));
-    return aidl;
-}
-
-} // namespace media
-} // namespace android
-
-#endif
diff --git a/media/audioaidlconversion/AidlConversionCppNdk.cpp b/media/audioaidlconversion/AidlConversionCppNdk.cpp
index d0ff091..be80055 100644
--- a/media/audioaidlconversion/AidlConversionCppNdk.cpp
+++ b/media/audioaidlconversion/AidlConversionCppNdk.cpp
@@ -83,6 +83,8 @@
 using media::audio::common::AudioUuid;
 using media::audio::common::ExtraAudioDescriptor;
 using media::audio::common::Int;
+using media::audio::common::MicrophoneDynamicInfo;
+using media::audio::common::MicrophoneInfo;
 using media::audio::common::PcmType;
 
 ////////////////////////////////////////////////////////////////////////////////////////////////////
@@ -2727,6 +2729,280 @@
     return unexpected(BAD_VALUE);
 }
 
+ConversionResult<audio_microphone_location_t>
+aidl2legacy_MicrophoneInfoLocation_audio_microphone_location_t(MicrophoneInfo::Location aidl) {
+    switch (aidl) {
+        case MicrophoneInfo::Location::UNKNOWN:
+            return AUDIO_MICROPHONE_LOCATION_UNKNOWN;
+        case MicrophoneInfo::Location::MAINBODY:
+            return AUDIO_MICROPHONE_LOCATION_MAINBODY;
+        case MicrophoneInfo::Location::MAINBODY_MOVABLE:
+            return AUDIO_MICROPHONE_LOCATION_MAINBODY_MOVABLE;
+        case MicrophoneInfo::Location::PERIPHERAL:
+            return AUDIO_MICROPHONE_LOCATION_PERIPHERAL;
+    }
+    return unexpected(BAD_VALUE);
+}
+ConversionResult<MicrophoneInfo::Location>
+legacy2aidl_audio_microphone_location_t_MicrophoneInfoLocation(audio_microphone_location_t legacy) {
+    switch (legacy) {
+        case AUDIO_MICROPHONE_LOCATION_UNKNOWN:
+            return MicrophoneInfo::Location::UNKNOWN;
+        case AUDIO_MICROPHONE_LOCATION_MAINBODY:
+            return MicrophoneInfo::Location::MAINBODY;
+        case AUDIO_MICROPHONE_LOCATION_MAINBODY_MOVABLE:
+            return MicrophoneInfo::Location::MAINBODY_MOVABLE;
+        case AUDIO_MICROPHONE_LOCATION_PERIPHERAL:
+            return MicrophoneInfo::Location::PERIPHERAL;
+    }
+    return unexpected(BAD_VALUE);
+}
+
+ConversionResult<audio_microphone_group_t> aidl2legacy_int32_t_audio_microphone_group_t(
+        int32_t aidl) {
+    return convertReinterpret<audio_microphone_group_t>(aidl);
+}
+
+ConversionResult<int32_t> legacy2aidl_audio_microphone_group_t_int32_t(
+        audio_microphone_group_t legacy) {
+    return convertReinterpret<int32_t>(legacy);
+}
+
+ConversionResult<audio_microphone_directionality_t>
+aidl2legacy_MicrophoneInfoDirectionality_audio_microphone_directionality_t(
+        MicrophoneInfo::Directionality aidl) {
+    switch (aidl) {
+        case MicrophoneInfo::Directionality::UNKNOWN:
+            return AUDIO_MICROPHONE_DIRECTIONALITY_UNKNOWN;
+        case MicrophoneInfo::Directionality::OMNI:
+            return AUDIO_MICROPHONE_DIRECTIONALITY_OMNI;
+        case MicrophoneInfo::Directionality::BI_DIRECTIONAL:
+            return AUDIO_MICROPHONE_DIRECTIONALITY_BI_DIRECTIONAL;
+        case MicrophoneInfo::Directionality::CARDIOID:
+            return AUDIO_MICROPHONE_DIRECTIONALITY_CARDIOID;
+        case MicrophoneInfo::Directionality::HYPER_CARDIOID:
+            return AUDIO_MICROPHONE_DIRECTIONALITY_HYPER_CARDIOID;
+        case MicrophoneInfo::Directionality::SUPER_CARDIOID:
+            return AUDIO_MICROPHONE_DIRECTIONALITY_SUPER_CARDIOID;
+    }
+    return unexpected(BAD_VALUE);
+}
+ConversionResult<MicrophoneInfo::Directionality>
+legacy2aidl_audio_microphone_directionality_t_MicrophoneInfoDirectionality(
+        audio_microphone_directionality_t legacy) {
+    switch (legacy) {
+        case AUDIO_MICROPHONE_DIRECTIONALITY_UNKNOWN:
+            return MicrophoneInfo::Directionality::UNKNOWN;
+        case AUDIO_MICROPHONE_DIRECTIONALITY_OMNI:
+            return MicrophoneInfo::Directionality::OMNI;
+        case AUDIO_MICROPHONE_DIRECTIONALITY_BI_DIRECTIONAL:
+            return MicrophoneInfo::Directionality::BI_DIRECTIONAL;
+        case AUDIO_MICROPHONE_DIRECTIONALITY_CARDIOID:
+            return MicrophoneInfo::Directionality::CARDIOID;
+        case AUDIO_MICROPHONE_DIRECTIONALITY_HYPER_CARDIOID:
+            return MicrophoneInfo::Directionality::HYPER_CARDIOID;
+        case AUDIO_MICROPHONE_DIRECTIONALITY_SUPER_CARDIOID:
+            return MicrophoneInfo::Directionality::SUPER_CARDIOID;
+    }
+    return unexpected(BAD_VALUE);
+}
+
+ConversionResult<audio_microphone_coordinate>
+aidl2legacy_MicrophoneInfoCoordinate_audio_microphone_coordinate(
+        const MicrophoneInfo::Coordinate& aidl) {
+    audio_microphone_coordinate legacy;
+    legacy.x = aidl.x;
+    legacy.y = aidl.y;
+    legacy.z = aidl.z;
+    return legacy;
+}
+ConversionResult<MicrophoneInfo::Coordinate>
+legacy2aidl_audio_microphone_coordinate_MicrophoneInfoCoordinate(
+        const audio_microphone_coordinate& legacy) {
+    MicrophoneInfo::Coordinate aidl;
+    aidl.x = legacy.x;
+    aidl.y = legacy.y;
+    aidl.z = legacy.z;
+    return aidl;
+}
+
+ConversionResult<audio_microphone_channel_mapping_t>
+aidl2legacy_MicrophoneDynamicInfoChannelMapping_audio_microphone_channel_mapping_t(
+        MicrophoneDynamicInfo::ChannelMapping aidl) {
+    switch (aidl) {
+        case MicrophoneDynamicInfo::ChannelMapping::UNUSED:
+            return AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED;
+        case MicrophoneDynamicInfo::ChannelMapping::DIRECT:
+            return AUDIO_MICROPHONE_CHANNEL_MAPPING_DIRECT;
+        case MicrophoneDynamicInfo::ChannelMapping::PROCESSED:
+            return AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED;
+    }
+    return unexpected(BAD_VALUE);
+}
+ConversionResult<MicrophoneDynamicInfo::ChannelMapping>
+legacy2aidl_audio_microphone_channel_mapping_t_MicrophoneDynamicInfoChannelMapping(
+        audio_microphone_channel_mapping_t legacy) {
+    switch (legacy) {
+        case AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED:
+            return MicrophoneDynamicInfo::ChannelMapping::UNUSED;
+        case AUDIO_MICROPHONE_CHANNEL_MAPPING_DIRECT:
+            return MicrophoneDynamicInfo::ChannelMapping::DIRECT;
+        case AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED:
+            return MicrophoneDynamicInfo::ChannelMapping::PROCESSED;
+    }
+    return unexpected(BAD_VALUE);
+}
+
+ConversionResult<audio_microphone_characteristic_t>
+aidl2legacy_MicrophoneInfos_audio_microphone_characteristic_t(
+        const MicrophoneInfo& aidlInfo, const MicrophoneDynamicInfo& aidlDynamic) {
+    static const audio_microphone_coordinate kCoordinateUnknown = {
+        AUDIO_MICROPHONE_COORDINATE_UNKNOWN, AUDIO_MICROPHONE_COORDINATE_UNKNOWN,
+        AUDIO_MICROPHONE_COORDINATE_UNKNOWN };
+    audio_microphone_characteristic_t legacy{};
+    if (aidlInfo.id != aidlDynamic.id) {
+        return unexpected(BAD_VALUE);
+    }
+    // Note: in the legacy structure, 'device_id' is the mic's ID, 'id' is APM port id.
+    RETURN_IF_ERROR(aidl2legacy_string(aidlInfo.id, legacy.device_id, AUDIO_MICROPHONE_ID_MAX_LEN));
+    RETURN_IF_ERROR(aidl2legacy_AudioDevice_audio_device(
+                    aidlInfo.device, &legacy.device, legacy.address));
+    legacy.location = VALUE_OR_RETURN(
+            aidl2legacy_MicrophoneInfoLocation_audio_microphone_location_t(aidlInfo.location));
+    legacy.group = VALUE_OR_RETURN(aidl2legacy_int32_t_audio_microphone_group_t(aidlInfo.group));
+    // For some reason, the legacy field is unsigned, however in the SDK layer it is signed,
+    // as it is in AIDL. So, use UINT_MAX for INDEX_IN_THE_GROUP_UNKNOWN which is -1.
+    if (aidlInfo.indexInTheGroup != MicrophoneInfo::INDEX_IN_THE_GROUP_UNKNOWN) {
+        legacy.index_in_the_group = VALUE_OR_RETURN(
+                convertReinterpret<unsigned int>(aidlInfo.indexInTheGroup));
+    } else {
+        legacy.index_in_the_group = UINT_MAX;
+    }
+    if (aidlInfo.sensitivity.has_value()) {
+        legacy.sensitivity = aidlInfo.sensitivity.value().leveldBFS;
+        legacy.max_spl = aidlInfo.sensitivity.value().maxSpldB;
+        legacy.min_spl = aidlInfo.sensitivity.value().minSpldB;
+    } else {
+        legacy.sensitivity = AUDIO_MICROPHONE_SENSITIVITY_UNKNOWN;
+        legacy.max_spl = AUDIO_MICROPHONE_SPL_UNKNOWN;
+        legacy.min_spl = AUDIO_MICROPHONE_SPL_UNKNOWN;
+    }
+    legacy.directionality = VALUE_OR_RETURN(
+            aidl2legacy_MicrophoneInfoDirectionality_audio_microphone_directionality_t(
+                    aidlInfo.directionality));
+    if (aidlInfo.frequencyResponse.size() > AUDIO_MICROPHONE_MAX_FREQUENCY_RESPONSES) {
+        return unexpected(BAD_VALUE);
+    }
+    legacy.num_frequency_responses = 0;
+    for (const auto& p: aidlInfo.frequencyResponse) {
+        legacy.frequency_responses[0][legacy.num_frequency_responses] = p.frequencyHz;
+        legacy.frequency_responses[1][legacy.num_frequency_responses++] = p.leveldB;
+    }
+    if (aidlInfo.position.has_value()) {
+        legacy.geometric_location = VALUE_OR_RETURN(
+                aidl2legacy_MicrophoneInfoCoordinate_audio_microphone_coordinate(
+                        aidlInfo.position.value()));
+    } else {
+        legacy.geometric_location = kCoordinateUnknown;
+    }
+    if (aidlInfo.orientation.has_value()) {
+        legacy.orientation = VALUE_OR_RETURN(
+                aidl2legacy_MicrophoneInfoCoordinate_audio_microphone_coordinate(
+                        aidlInfo.orientation.value()));
+    } else {
+        legacy.orientation = kCoordinateUnknown;
+    }
+    if (aidlDynamic.channelMapping.size() > AUDIO_CHANNEL_COUNT_MAX) {
+        return unexpected(BAD_VALUE);
+    }
+    size_t i = 0;
+    for (; i < aidlDynamic.channelMapping.size(); ++i) {
+        legacy.channel_mapping[i] = VALUE_OR_RETURN(
+                aidl2legacy_MicrophoneDynamicInfoChannelMapping_audio_microphone_channel_mapping_t(
+                        aidlDynamic.channelMapping[i]));
+    }
+    for (; i < AUDIO_CHANNEL_COUNT_MAX; ++i) {
+        legacy.channel_mapping[i] = AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED;
+    }
+    return legacy;
+}
+
+status_t
+legacy2aidl_audio_microphone_characteristic_t_MicrophoneInfos(
+        const audio_microphone_characteristic_t& legacy,
+        MicrophoneInfo* aidlInfo, MicrophoneDynamicInfo* aidlDynamic) {
+    aidlInfo->id = VALUE_OR_RETURN_STATUS(
+            legacy2aidl_string(legacy.device_id, AUDIO_MICROPHONE_ID_MAX_LEN));
+    aidlDynamic->id = aidlInfo->id;
+    aidlInfo->device = VALUE_OR_RETURN_STATUS(legacy2aidl_audio_device_AudioDevice(
+                    legacy.device, legacy.address));
+    aidlInfo->location = VALUE_OR_RETURN_STATUS(
+            legacy2aidl_audio_microphone_location_t_MicrophoneInfoLocation(legacy.location));
+    aidlInfo->group = VALUE_OR_RETURN_STATUS(
+            legacy2aidl_audio_microphone_group_t_int32_t(legacy.group));
+    // For some reason, the legacy field is unsigned, however in the SDK layer it is signed,
+    // as it is in AIDL. So, use UINT_MAX for INDEX_IN_THE_GROUP_UNKNOWN which is -1.
+    if (legacy.index_in_the_group != UINT_MAX) {
+        aidlInfo->indexInTheGroup = VALUE_OR_RETURN_STATUS(
+                convertReinterpret<int32_t>(legacy.index_in_the_group));
+    } else {
+        aidlInfo->indexInTheGroup = MicrophoneInfo::INDEX_IN_THE_GROUP_UNKNOWN;
+    }
+    if (legacy.sensitivity != AUDIO_MICROPHONE_SENSITIVITY_UNKNOWN &&
+            legacy.max_spl != AUDIO_MICROPHONE_SPL_UNKNOWN &&
+            legacy.min_spl != AUDIO_MICROPHONE_SPL_UNKNOWN) {
+        MicrophoneInfo::Sensitivity sensitivity;
+        sensitivity.leveldBFS = legacy.sensitivity;
+        sensitivity.maxSpldB = legacy.max_spl;
+        sensitivity.minSpldB = legacy.min_spl;
+        aidlInfo->sensitivity = std::move(sensitivity);
+    } else {
+        aidlInfo->sensitivity = {};
+    }
+    aidlInfo->directionality = VALUE_OR_RETURN_STATUS(
+            legacy2aidl_audio_microphone_directionality_t_MicrophoneInfoDirectionality(
+                    legacy.directionality));
+    if (legacy.num_frequency_responses > AUDIO_MICROPHONE_MAX_FREQUENCY_RESPONSES) {
+        return BAD_VALUE;
+    }
+    aidlInfo->frequencyResponse.resize(legacy.num_frequency_responses);
+    for (size_t i = 0; i < legacy.num_frequency_responses; ++i) {
+        aidlInfo->frequencyResponse[i].frequencyHz = legacy.frequency_responses[0][i];
+        aidlInfo->frequencyResponse[i].leveldB = legacy.frequency_responses[1][i];
+    }
+    if (legacy.geometric_location.x != AUDIO_MICROPHONE_COORDINATE_UNKNOWN &&
+            legacy.geometric_location.y != AUDIO_MICROPHONE_COORDINATE_UNKNOWN &&
+            legacy.geometric_location.z != AUDIO_MICROPHONE_COORDINATE_UNKNOWN) {
+        aidlInfo->position = VALUE_OR_RETURN_STATUS(
+                legacy2aidl_audio_microphone_coordinate_MicrophoneInfoCoordinate(
+                        legacy.geometric_location));
+    } else {
+        aidlInfo->position = {};
+    }
+    if (legacy.orientation.x != AUDIO_MICROPHONE_COORDINATE_UNKNOWN &&
+            legacy.orientation.y != AUDIO_MICROPHONE_COORDINATE_UNKNOWN &&
+            legacy.orientation.z != AUDIO_MICROPHONE_COORDINATE_UNKNOWN) {
+        aidlInfo->orientation = VALUE_OR_RETURN_STATUS(
+                legacy2aidl_audio_microphone_coordinate_MicrophoneInfoCoordinate(
+                        legacy.orientation));
+    } else {
+        aidlInfo->orientation = {};
+    }
+    size_t channelsUsed = AUDIO_CHANNEL_COUNT_MAX;
+    while (channelsUsed != 0 &&
+            legacy.channel_mapping[--channelsUsed] == AUDIO_MICROPHONE_CHANNEL_MAPPING_UNUSED) {}
+    // Doing an increment is correct even when channel 0 is 'UNUSED',
+    // that's because AIDL requires to have at least 1 element in the mapping.
+    ++channelsUsed;
+    aidlDynamic->channelMapping.resize(channelsUsed);
+    for (size_t i = 0; i < channelsUsed; ++i) {
+        aidlDynamic->channelMapping[i] = VALUE_OR_RETURN_STATUS(
+                legacy2aidl_audio_microphone_channel_mapping_t_MicrophoneDynamicInfoChannelMapping(
+                        legacy.channel_mapping[i]));
+    }
+    return OK;
+}
+
 }  // namespace android
 
 #if defined(BACKEND_NDK)
diff --git a/media/audioaidlconversion/include/media/AidlConversionCppNdk.h b/media/audioaidlconversion/include/media/AidlConversionCppNdk.h
index c412238..abf0231 100644
--- a/media/audioaidlconversion/include/media/AidlConversionCppNdk.h
+++ b/media/audioaidlconversion/include/media/AidlConversionCppNdk.h
@@ -61,6 +61,8 @@
 #include PREFIX(android/media/audio/common/AudioUuid.h)
 #include PREFIX(android/media/audio/common/ExtraAudioDescriptor.h)
 #include PREFIX(android/media/audio/common/Int.h)
+#include PREFIX(android/media/audio/common/MicrophoneDynamicInfo.h)
+#include PREFIX(android/media/audio/common/MicrophoneInfo.h)
 #undef PREFIX
 
 #include <media/AidlConversionUtil.h>
@@ -371,6 +373,48 @@
 ConversionResult<media::audio::common::AudioLatencyMode>
 legacy2aidl_audio_latency_mode_t_AudioLatencyMode(audio_latency_mode_t legacy);
 
+ConversionResult<audio_microphone_location_t>
+aidl2legacy_MicrophoneInfoLocation_audio_microphone_location_t(
+        media::audio::common::MicrophoneInfo::Location aidl);
+ConversionResult<media::audio::common::MicrophoneInfo::Location>
+legacy2aidl_audio_microphone_location_t_MicrophoneInfoLocation(audio_microphone_location_t legacy);
+
+ConversionResult<audio_microphone_group_t> aidl2legacy_int32_t_audio_microphone_group_t(
+        int32_t aidl);
+ConversionResult<int32_t> legacy2aidl_audio_microphone_group_t_int32_t(
+        audio_microphone_group_t legacy);
+
+ConversionResult<audio_microphone_directionality_t>
+aidl2legacy_MicrophoneInfoDirectionality_audio_microphone_directionality_t(
+        media::audio::common::MicrophoneInfo::Directionality aidl);
+ConversionResult<media::audio::common::MicrophoneInfo::Directionality>
+legacy2aidl_audio_microphone_directionality_t_MicrophoneInfoDirectionality(
+        audio_microphone_directionality_t legacy);
+
+ConversionResult<audio_microphone_coordinate>
+aidl2legacy_MicrophoneInfoCoordinate_audio_microphone_coordinate(
+        const media::audio::common::MicrophoneInfo::Coordinate& aidl);
+ConversionResult<media::audio::common::MicrophoneInfo::Coordinate>
+legacy2aidl_audio_microphone_coordinate_MicrophoneInfoCoordinate(
+        const audio_microphone_coordinate& legacy);
+
+ConversionResult<audio_microphone_channel_mapping_t>
+aidl2legacy_MicrophoneDynamicInfoChannelMapping_audio_microphone_channel_mapping_t(
+        media::audio::common::MicrophoneDynamicInfo::ChannelMapping aidl);
+ConversionResult<media::audio::common::MicrophoneDynamicInfo::ChannelMapping>
+legacy2aidl_audio_microphone_channel_mapping_t_MicrophoneDynamicInfoChannelMapping(
+        audio_microphone_channel_mapping_t legacy);
+
+ConversionResult<audio_microphone_characteristic_t>
+aidl2legacy_MicrophoneInfos_audio_microphone_characteristic_t(
+        const media::audio::common::MicrophoneInfo& aidlInfo,
+        const media::audio::common::MicrophoneDynamicInfo& aidlDynamic);
+status_t
+legacy2aidl_audio_microphone_characteristic_t_MicrophoneInfos(
+        const audio_microphone_characteristic_t& legacy,
+        media::audio::common::MicrophoneInfo* aidlInfo,
+        media::audio::common::MicrophoneDynamicInfo* aidlDynamic);
+
 }  // namespace android
 
 #if defined(BACKEND_NDK)
diff --git a/media/libaudioclient/AidlConversion.cpp b/media/libaudioclient/AidlConversion.cpp
index b3c8643..3a5ba78 100644
--- a/media/libaudioclient/AidlConversion.cpp
+++ b/media/libaudioclient/AidlConversion.cpp
@@ -990,4 +990,24 @@
             indexToEnum_bitmask<audio_direct_mode_t>,
             enumToMask_index<int32_t, media::AudioDirectMode>);
 }
+
+ConversionResult<audio_microphone_characteristic_t>
+aidl2legacy_MicrophoneInfoFw_audio_microphone_characteristic_t(
+        const media::MicrophoneInfoFw& aidl) {
+    audio_microphone_characteristic_t legacy =
+            VALUE_OR_RETURN(aidl2legacy_MicrophoneInfos_audio_microphone_characteristic_t(
+                            aidl.info, aidl.dynamic));
+    legacy.id = VALUE_OR_RETURN(aidl2legacy_int32_t_audio_port_handle_t(aidl.portId));
+    return legacy;
+}
+ConversionResult<media::MicrophoneInfoFw>
+legacy2aidl_audio_microphone_characteristic_t_MicrophoneInfoFw(
+        const audio_microphone_characteristic_t& legacy) {
+    media::MicrophoneInfoFw aidl;
+    RETURN_IF_ERROR(legacy2aidl_audio_microphone_characteristic_t_MicrophoneInfos(
+                    legacy, &aidl.info, &aidl.dynamic));
+    aidl.portId = VALUE_OR_RETURN(legacy2aidl_audio_port_handle_t_int32_t(legacy.id));
+    return aidl;
+}
+
 }  // namespace android
diff --git a/media/libaudioclient/Android.bp b/media/libaudioclient/Android.bp
index 50e9ea7..2bbfb76 100644
--- a/media/libaudioclient/Android.bp
+++ b/media/libaudioclient/Android.bp
@@ -199,6 +199,7 @@
     srcs: ["AidlConversion.cpp"],
     shared_libs: [
         "audioclient-types-aidl-cpp",
+        "av-types-aidl-cpp",
     ],
     static_libs: [
         "libaudio_aidl_conversion_common_cpp",
@@ -212,6 +213,7 @@
     ],
     export_shared_lib_headers: [
         "audioclient-types-aidl-cpp",
+        "av-types-aidl-cpp",
     ],
     defaults: [
         "audio_aidl_conversion_common_default",
diff --git a/media/libaudioclient/AudioRecord.cpp b/media/libaudioclient/AudioRecord.cpp
index 12bcec6..f07ea1d 100644
--- a/media/libaudioclient/AudioRecord.cpp
+++ b/media/libaudioclient/AudioRecord.cpp
@@ -1635,16 +1635,10 @@
 
 // -------------------------------------------------------------------------
 
-status_t AudioRecord::getActiveMicrophones(std::vector<media::MicrophoneInfo>* activeMicrophones)
+status_t AudioRecord::getActiveMicrophones(std::vector<media::MicrophoneInfoFw>* activeMicrophones)
 {
     AutoMutex lock(mLock);
-    std::vector<media::MicrophoneInfoData> mics;
-    status_t status = statusTFromBinderStatus(mAudioRecord->getActiveMicrophones(&mics));
-    activeMicrophones->resize(mics.size());
-    for (size_t i = 0; status == OK && i < mics.size(); ++i) {
-        status = activeMicrophones->at(i).readFromParcelable(mics[i]);
-    }
-    return status;
+    return statusTFromBinderStatus(mAudioRecord->getActiveMicrophones(activeMicrophones));
 }
 
 status_t AudioRecord::setPreferredMicrophoneDirection(audio_microphone_direction_t direction)
diff --git a/media/libaudioclient/AudioSystem.cpp b/media/libaudioclient/AudioSystem.cpp
index 59016ad..706f51f 100644
--- a/media/libaudioclient/AudioSystem.cpp
+++ b/media/libaudioclient/AudioSystem.cpp
@@ -1936,7 +1936,7 @@
     return result.value_or(NAN);
 }
 
-status_t AudioSystem::getMicrophones(std::vector<media::MicrophoneInfo>* microphones) {
+status_t AudioSystem::getMicrophones(std::vector<media::MicrophoneInfoFw>* microphones) {
     const sp<IAudioFlinger>& af = AudioSystem::get_audio_flinger();
     if (af == 0) return PERMISSION_DENIED;
     return af->getMicrophones(microphones);
diff --git a/media/libaudioclient/IAudioFlinger.cpp b/media/libaudioclient/IAudioFlinger.cpp
index 1c634e7..bbc39e8 100644
--- a/media/libaudioclient/IAudioFlinger.cpp
+++ b/media/libaudioclient/IAudioFlinger.cpp
@@ -753,14 +753,11 @@
 }
 
 status_t
-AudioFlingerClientAdapter::getMicrophones(std::vector<media::MicrophoneInfo>* microphones) {
-    std::vector<media::MicrophoneInfoData> aidlRet;
-    RETURN_STATUS_IF_ERROR(statusTFromBinderStatus(
-            mDelegate->getMicrophones(&aidlRet)));
+AudioFlingerClientAdapter::getMicrophones(std::vector<media::MicrophoneInfoFw>* microphones) {
+    std::vector<media::MicrophoneInfoFw> aidlRet;
+    RETURN_STATUS_IF_ERROR(statusTFromBinderStatus(mDelegate->getMicrophones(&aidlRet)));
     if (microphones != nullptr) {
-        *microphones = VALUE_OR_RETURN_STATUS(
-                convertContainer<std::vector<media::MicrophoneInfo>>(aidlRet,
-                         media::aidl2legacy_MicrophoneInfo));
+        *microphones = std::move(aidlRet);
     }
     return OK;
 }
@@ -1324,11 +1321,8 @@
 }
 
 Status AudioFlingerServerAdapter::getMicrophones(
-        std::vector<media::MicrophoneInfoData>* _aidl_return) {
-    std::vector<media::MicrophoneInfo> resultLegacy;
-    RETURN_BINDER_IF_ERROR(mDelegate->getMicrophones(&resultLegacy));
-    *_aidl_return = VALUE_OR_RETURN_BINDER(convertContainer<std::vector<media::MicrophoneInfoData>>(
-            resultLegacy, media::legacy2aidl_MicrophoneInfo));
+        std::vector<media::MicrophoneInfoFw>* _aidl_return) {
+    RETURN_BINDER_IF_ERROR(mDelegate->getMicrophones(_aidl_return));
     return Status::ok();
 }
 
diff --git a/media/libaudioclient/aidl/android/media/IAudioFlingerService.aidl b/media/libaudioclient/aidl/android/media/IAudioFlingerService.aidl
index 69810c0..568c865 100644
--- a/media/libaudioclient/aidl/android/media/IAudioFlingerService.aidl
+++ b/media/libaudioclient/aidl/android/media/IAudioFlingerService.aidl
@@ -37,7 +37,7 @@
 import android.media.IAudioTrack;
 import android.media.ISoundDose;
 import android.media.ISoundDoseCallback;
-import android.media.MicrophoneInfoData;
+import android.media.MicrophoneInfoFw;
 import android.media.RenderPosition;
 import android.media.TrackSecondaryOutputInfo;
 import android.media.audio.common.AudioChannelLayout;
@@ -208,7 +208,7 @@
     long frameCountHAL(int /* audio_io_handle_t */ ioHandle);
 
     /* List available microphones and their characteristics */
-    MicrophoneInfoData[] getMicrophones();
+    MicrophoneInfoFw[] getMicrophones();
 
     void setAudioHalPids(in int[] /* pid_t[] */ pids);
 
diff --git a/media/libaudioclient/aidl/android/media/IAudioRecord.aidl b/media/libaudioclient/aidl/android/media/IAudioRecord.aidl
index 44ef80b..1ea4156 100644
--- a/media/libaudioclient/aidl/android/media/IAudioRecord.aidl
+++ b/media/libaudioclient/aidl/android/media/IAudioRecord.aidl
@@ -16,7 +16,7 @@
 
 package android.media;
 
-import android.media.MicrophoneInfoData;
+import android.media.MicrophoneInfoFw;
 
 /**
  * Native code must specify namespace media (media::IAudioRecord) when referring to this class.
@@ -39,7 +39,7 @@
 
   /* Get a list of current active microphones.
    */
-  void getActiveMicrophones(out MicrophoneInfoData[] activeMicrophones);
+  void getActiveMicrophones(out MicrophoneInfoFw[] activeMicrophones);
 
   /* Set the microphone direction (for processing).
    */
diff --git a/media/libaudioclient/fuzzer/audioflinger_fuzzer.cpp b/media/libaudioclient/fuzzer/audioflinger_fuzzer.cpp
index 47fe0f6..dfdb4cf 100644
--- a/media/libaudioclient/fuzzer/audioflinger_fuzzer.cpp
+++ b/media/libaudioclient/fuzzer/audioflinger_fuzzer.cpp
@@ -385,7 +385,7 @@
     record->getInputFramesLost();
     record->getFlags();
 
-    std::vector<media::MicrophoneInfo> activeMicrophones;
+    std::vector<media::MicrophoneInfoFw> activeMicrophones;
     record->getActiveMicrophones(&activeMicrophones);
     record->releaseBuffer(&audioBuffer);
 
@@ -567,7 +567,7 @@
     AudioSystem::getPrimaryOutputFrameCount();
     AudioSystem::setLowRamDevice(mFdp.ConsumeBool(), mFdp.ConsumeIntegral<int64_t>());
 
-    std::vector<media::MicrophoneInfo> microphones;
+    std::vector<media::MicrophoneInfoFw> microphones;
     AudioSystem::getMicrophones(&microphones);
 
     std::vector<pid_t> pids;
diff --git a/media/libaudioclient/include/media/AidlConversion.h b/media/libaudioclient/include/media/AidlConversion.h
index f0e58ae..5bd0114 100644
--- a/media/libaudioclient/include/media/AidlConversion.h
+++ b/media/libaudioclient/include/media/AidlConversion.h
@@ -33,6 +33,7 @@
 #include <android/media/AudioTimestampInternal.h>
 #include <android/media/AudioUniqueIdUse.h>
 #include <android/media/EffectDescriptor.h>
+#include <android/media/MicrophoneInfoFw.h>
 #include <android/media/TrackSecondaryOutputInfo.h>
 
 #include <android/media/SharedFileRegion.h>
@@ -198,4 +199,11 @@
 ConversionResult<audio_direct_mode_t> aidl2legacy_int32_t_audio_direct_mode_t_mask(int32_t aidl);
 ConversionResult<int32_t> legacy2aidl_audio_direct_mode_t_int32_t_mask(audio_direct_mode_t legacy);
 
+ConversionResult<audio_microphone_characteristic_t>
+aidl2legacy_MicrophoneInfoFw_audio_microphone_characteristic_t(
+        const media::MicrophoneInfoFw& aidl);
+ConversionResult<media::MicrophoneInfoFw>
+legacy2aidl_audio_microphone_characteristic_t_MicrophoneInfoFw(
+        const audio_microphone_characteristic_t& legacy);
+
 }  // namespace android
diff --git a/media/libaudioclient/include/media/AudioRecord.h b/media/libaudioclient/include/media/AudioRecord.h
index 3f33d7a..00f2c7a 100644
--- a/media/libaudioclient/include/media/AudioRecord.h
+++ b/media/libaudioclient/include/media/AudioRecord.h
@@ -26,7 +26,6 @@
 #include <media/AudioTimestamp.h>
 #include <media/MediaMetricsItem.h>
 #include <media/Modulo.h>
-#include <media/MicrophoneInfo.h>
 #include <media/RecordingActivityTracker.h>
 #include <utils/RefBase.h>
 #include <utils/threads.h>
@@ -584,10 +583,11 @@
     /* Get the flags */
             audio_input_flags_t getFlags() const { AutoMutex _l(mLock); return mFlags; }
 
-    /* Get active microphones. A empty vector of MicrophoneInfo will be passed as a parameter,
+    /* Get active microphones. A empty vector of MicrophoneInfoFw will be passed as a parameter,
      * the data will be filled when querying the hal.
      */
-            status_t    getActiveMicrophones(std::vector<media::MicrophoneInfo>* activeMicrophones);
+            status_t    getActiveMicrophones(
+                    std::vector<media::MicrophoneInfoFw>* activeMicrophones);
 
     /* Set the Microphone direction (for processing purposes).
      */
diff --git a/media/libaudioclient/include/media/AudioSystem.h b/media/libaudioclient/include/media/AudioSystem.h
index 23b0340..d033d4f 100644
--- a/media/libaudioclient/include/media/AudioSystem.h
+++ b/media/libaudioclient/include/media/AudioSystem.h
@@ -31,6 +31,7 @@
 #include <android/media/ISoundDose.h>
 #include <android/media/ISoundDoseCallback.h>
 #include <android/media/ISpatializer.h>
+#include <android/media/MicrophoneInfoFw.h>
 #include <android/media/RecordClientInfo.h>
 #include <android/media/audio/common/AudioConfigBase.h>
 #include <android/media/audio/common/AudioMMapPolicyInfo.h>
@@ -43,7 +44,6 @@
 #include <media/AudioProductStrategy.h>
 #include <media/AudioVolumeGroup.h>
 #include <media/AudioIoDescriptor.h>
-#include <media/MicrophoneInfo.h>
 #include <system/audio.h>
 #include <system/audio_effect.h>
 #include <system/audio_policy.h>
@@ -475,7 +475,7 @@
     static float    getStreamVolumeDB(
             audio_stream_type_t stream, int index, audio_devices_t device);
 
-    static status_t getMicrophones(std::vector<media::MicrophoneInfo> *microphones);
+    static status_t getMicrophones(std::vector<media::MicrophoneInfoFw> *microphones);
 
     static status_t getHwOffloadFormatsSupportedForBluetoothMedia(
                                     audio_devices_t device, std::vector<audio_format_t> *formats);
diff --git a/media/libaudioclient/include/media/IAudioFlinger.h b/media/libaudioclient/include/media/IAudioFlinger.h
index 6b6c407..02d0511 100644
--- a/media/libaudioclient/include/media/IAudioFlinger.h
+++ b/media/libaudioclient/include/media/IAudioFlinger.h
@@ -32,7 +32,6 @@
 #include <system/audio_effect.h>
 #include <system/audio_policy.h>
 #include <utils/String8.h>
-#include <media/MicrophoneInfo.h>
 #include <map>
 #include <string>
 #include <vector>
@@ -342,7 +341,7 @@
     virtual size_t frameCountHAL(audio_io_handle_t ioHandle) const = 0;
 
     /* List available microphones and their characteristics */
-    virtual status_t getMicrophones(std::vector<media::MicrophoneInfo> *microphones) = 0;
+    virtual status_t getMicrophones(std::vector<media::MicrophoneInfoFw> *microphones) = 0;
 
     virtual status_t setAudioHalPids(const std::vector<pid_t>& pids) = 0;
 
@@ -470,7 +469,7 @@
     status_t audioPolicyReady() override;
 
     size_t frameCountHAL(audio_io_handle_t ioHandle) const override;
-    status_t getMicrophones(std::vector<media::MicrophoneInfo>* microphones) override;
+    status_t getMicrophones(std::vector<media::MicrophoneInfoFw>* microphones) override;
     status_t setAudioHalPids(const std::vector<pid_t>& pids) override;
     status_t setVibratorInfos(const std::vector<media::AudioVibratorInfo>& vibratorInfos) override;
     status_t updateSecondaryOutputs(
@@ -698,7 +697,7 @@
     Status systemReady() override;
     Status audioPolicyReady() override;
     Status frameCountHAL(int32_t ioHandle, int64_t* _aidl_return) override;
-    Status getMicrophones(std::vector<media::MicrophoneInfoData>* _aidl_return) override;
+    Status getMicrophones(std::vector<media::MicrophoneInfoFw>* _aidl_return) override;
     Status setAudioHalPids(const std::vector<int32_t>& pids) override;
     Status setVibratorInfos(const std::vector<media::AudioVibratorInfo>& vibratorInfos) override;
     Status updateSecondaryOutputs(
diff --git a/media/libaudioclient/tests/Android.bp b/media/libaudioclient/tests/Android.bp
index dcb6c25..2189521 100644
--- a/media/libaudioclient/tests/Android.bp
+++ b/media/libaudioclient/tests/Android.bp
@@ -39,6 +39,7 @@
         "libaudioclient_aidl_conversion",
         "libaudio_aidl_conversion_common_cpp",
         "audioclient-types-aidl-cpp",
+        "av-types-aidl-cpp",
         "libstagefright_foundation",
     ],
 }
diff --git a/media/libaudioclient/tests/audio_aidl_legacy_conversion_tests.cpp b/media/libaudioclient/tests/audio_aidl_legacy_conversion_tests.cpp
index 5cd17e1..f651a37 100644
--- a/media/libaudioclient/tests/audio_aidl_legacy_conversion_tests.cpp
+++ b/media/libaudioclient/tests/audio_aidl_legacy_conversion_tests.cpp
@@ -47,6 +47,8 @@
 using media::audio::common::AudioStandard;
 using media::audio::common::ExtraAudioDescriptor;
 using media::audio::common::Int;
+using media::audio::common::MicrophoneDynamicInfo;
+using media::audio::common::MicrophoneInfo;
 using media::audio::common::PcmType;
 
 // Provide value printers for types generated from AIDL
@@ -668,3 +670,73 @@
     }
 }
 INSTANTIATE_TEST_SUITE_P(AudioGain, AudioGainTest, testing::Values(true, false));
+
+TEST(AudioMicrophoneInfoFw, Aidl2Legacy2Aidl) {
+    media::MicrophoneInfoFw initial{};
+    // HALs must return at least 1 element in channelMapping. The zero value is 'UNUSED'.
+    initial.dynamic.channelMapping.resize(1);
+    auto conv = aidl2legacy_MicrophoneInfoFw_audio_microphone_characteristic_t(initial);
+    ASSERT_TRUE(conv.ok());
+    auto convBack = legacy2aidl_audio_microphone_characteristic_t_MicrophoneInfoFw(conv.value());
+    ASSERT_TRUE(convBack.ok());
+    EXPECT_EQ(initial, convBack.value());
+}
+
+TEST(AudioMicrophoneInfoFw, UnknownValues) {
+    {
+        media::MicrophoneInfoFw initial;
+        initial.dynamic.channelMapping.resize(1);
+        initial.info.indexInTheGroup = MicrophoneInfo::INDEX_IN_THE_GROUP_UNKNOWN;
+        auto conv = aidl2legacy_MicrophoneInfoFw_audio_microphone_characteristic_t(initial);
+        ASSERT_TRUE(conv.ok());
+        auto convBack =
+                legacy2aidl_audio_microphone_characteristic_t_MicrophoneInfoFw(conv.value());
+        ASSERT_TRUE(convBack.ok());
+        EXPECT_EQ(initial, convBack.value());
+    }
+    for (const auto f : {&audio_microphone_characteristic_t::sensitivity,
+                         &audio_microphone_characteristic_t::max_spl,
+                         &audio_microphone_characteristic_t::min_spl}) {
+        audio_microphone_characteristic_t mic{};
+        if (f == &audio_microphone_characteristic_t::sensitivity) {
+            mic.*f = AUDIO_MICROPHONE_SENSITIVITY_UNKNOWN;
+        } else {
+            mic.*f = AUDIO_MICROPHONE_SPL_UNKNOWN;
+        }
+        auto aidl = legacy2aidl_audio_microphone_characteristic_t_MicrophoneInfoFw(mic);
+        ASSERT_TRUE(aidl.ok());
+        EXPECT_FALSE(aidl.value().info.sensitivity.has_value());
+    }
+    for (const auto f : {&audio_microphone_characteristic_t::geometric_location,
+                         &audio_microphone_characteristic_t::orientation}) {
+        for (const auto c : {&audio_microphone_coordinate::x, &audio_microphone_coordinate::y,
+                             &audio_microphone_coordinate::z}) {
+            audio_microphone_characteristic_t mic{};
+            mic.*f.*c = AUDIO_MICROPHONE_COORDINATE_UNKNOWN;
+            auto conv = legacy2aidl_audio_microphone_characteristic_t_MicrophoneInfoFw(mic);
+            ASSERT_TRUE(conv.ok());
+            const auto& aidl = conv.value();
+            if (f == &audio_microphone_characteristic_t::geometric_location) {
+                EXPECT_FALSE(aidl.info.position.has_value());
+                EXPECT_TRUE(aidl.info.orientation.has_value());
+            } else {
+                EXPECT_TRUE(aidl.info.position.has_value());
+                EXPECT_FALSE(aidl.info.orientation.has_value());
+            }
+        }
+    }
+}
+
+TEST(AudioMicrophoneInfoFw, ChannelMapping) {
+    audio_microphone_characteristic_t mic{};
+    mic.channel_mapping[1] = AUDIO_MICROPHONE_CHANNEL_MAPPING_DIRECT;
+    mic.channel_mapping[3] = AUDIO_MICROPHONE_CHANNEL_MAPPING_PROCESSED;
+    auto conv = legacy2aidl_audio_microphone_characteristic_t_MicrophoneInfoFw(mic);
+    ASSERT_TRUE(conv.ok());
+    const auto& aidl = conv.value();
+    EXPECT_EQ(4, aidl.dynamic.channelMapping.size());
+    EXPECT_EQ(MicrophoneDynamicInfo::ChannelMapping::UNUSED, aidl.dynamic.channelMapping[0]);
+    EXPECT_EQ(MicrophoneDynamicInfo::ChannelMapping::DIRECT, aidl.dynamic.channelMapping[1]);
+    EXPECT_EQ(MicrophoneDynamicInfo::ChannelMapping::UNUSED, aidl.dynamic.channelMapping[2]);
+    EXPECT_EQ(MicrophoneDynamicInfo::ChannelMapping::PROCESSED, aidl.dynamic.channelMapping[3]);
+}
diff --git a/media/libaudiohal/impl/Android.bp b/media/libaudiohal/impl/Android.bp
index 17993f5..0e98856 100644
--- a/media/libaudiohal/impl/Android.bp
+++ b/media/libaudiohal/impl/Android.bp
@@ -55,6 +55,7 @@
     shared_libs: [
         "audioclient-types-aidl-cpp",
         "av-types-aidl-cpp",
+        "libaudioclient_aidl_conversion",
         "libaudiofoundation",
         "libaudioutils",
         "libbase",
@@ -71,6 +72,9 @@
         "libaudioclient_headers",
         "libaudiohal_headers"
     ],
+    defaults: [
+        "latest_android_media_audio_common_types_cpp_export_shared",
+    ],
 
     export_shared_lib_headers: [
         "libfmq",
@@ -247,7 +251,7 @@
         "latest_android_hardware_audio_common_ndk_shared",
         "latest_android_hardware_audio_core_ndk_shared",
         "latest_android_hardware_audio_core_sounddose_ndk_shared",
-        "latest_android_hardware_audio_effect_ndk_static",
+        "latest_android_hardware_audio_effect_ndk_shared",
         "latest_android_media_audio_common_types_ndk_shared",
     ],
     srcs: [
@@ -287,7 +291,6 @@
         "libaudioaidlcommon",
     ],
     header_libs: [
-        "libaudio_aidl_conversion_common_util_ndk",
         "libaudio_system_headers",
     ],
     cflags: [
diff --git a/media/libaudiohal/impl/StreamHalAidl.cpp b/media/libaudiohal/impl/StreamHalAidl.cpp
index 17b3c2e..7aa8231 100644
--- a/media/libaudiohal/impl/StreamHalAidl.cpp
+++ b/media/libaudiohal/impl/StreamHalAidl.cpp
@@ -701,7 +701,7 @@
 }
 
 status_t StreamInHalAidl::getActiveMicrophones(
-        std::vector<media::MicrophoneInfo> *microphones __unused) {
+        std::vector<media::MicrophoneInfoFw> *microphones __unused) {
     TIME_CHECK();
     if (!mStream) return NO_INIT;
     ALOGE("%s not implemented yet", __func__);
diff --git a/media/libaudiohal/impl/StreamHalAidl.h b/media/libaudiohal/impl/StreamHalAidl.h
index 162c7bc..f43c8e2 100644
--- a/media/libaudiohal/impl/StreamHalAidl.h
+++ b/media/libaudiohal/impl/StreamHalAidl.h
@@ -328,7 +328,7 @@
     status_t getCapturePosition(int64_t *frames, int64_t *time) override;
 
     // Get active microphones
-    status_t getActiveMicrophones(std::vector<media::MicrophoneInfo> *microphones) override;
+    status_t getActiveMicrophones(std::vector<media::MicrophoneInfoFw> *microphones) override;
 
     // Set microphone direction (for processing)
     status_t setPreferredMicrophoneDirection(
diff --git a/media/libaudiohal/impl/StreamHalHidl.cpp b/media/libaudiohal/impl/StreamHalHidl.cpp
index 2c289e1..07c6df5 100644
--- a/media/libaudiohal/impl/StreamHalHidl.cpp
+++ b/media/libaudiohal/impl/StreamHalHidl.cpp
@@ -24,6 +24,9 @@
 #include <mediautils/SchedulingPolicyService.h>
 #include <mediautils/TimeCheck.h>
 #include <utils/Log.h>
+#if MAJOR_VERSION >= 4
+#include <media/AidlConversion.h>
+#endif
 
 #include PATH(android/hardware/audio/CORE_TYPES_FILE_VERSION/IStreamOutCallback.h)
 #include <HidlUtils.h>
@@ -1169,7 +1172,7 @@
 
 #if MAJOR_VERSION == 2
 status_t StreamInHalHidl::getActiveMicrophones(
-        std::vector<media::MicrophoneInfo> *microphones __unused) {
+        std::vector<media::MicrophoneInfoFw> *microphones __unused) {
     if (mStream == 0) return NO_INIT;
     return INVALID_OPERATION;
 }
@@ -1182,7 +1185,7 @@
 
 #elif MAJOR_VERSION >= 4
 status_t StreamInHalHidl::getActiveMicrophones(
-        std::vector<media::MicrophoneInfo> *microphonesInfo) {
+        std::vector<media::MicrophoneInfoFw> *microphonesInfo) {
     TIME_CHECK();
     if (!mStream) return NO_INIT;
     Result retval;
@@ -1190,11 +1193,17 @@
             [&](Result r, hidl_vec<MicrophoneInfo> micArrayHal) {
         retval = r;
         for (size_t k = 0; k < micArrayHal.size(); k++) {
+            // Convert via legacy.
             audio_microphone_characteristic_t dst;
-            // convert
             (void)CoreUtils::microphoneInfoToHal(micArrayHal[k], &dst);
-            media::MicrophoneInfo microphone = media::MicrophoneInfo(dst);
-            microphonesInfo->push_back(microphone);
+            auto conv = legacy2aidl_audio_microphone_characteristic_t_MicrophoneInfoFw(dst);
+            if (conv.ok()) {
+                microphonesInfo->push_back(conv.value());
+            } else {
+                ALOGW("getActiveMicrophones: could not convert %s to AIDL: %d",
+                        toString(micArrayHal[k]).c_str(), conv.error());
+                microphonesInfo->push_back(media::MicrophoneInfoFw{});
+            }
         }
     });
     return processReturn("getActiveMicrophones", ret, retval);
diff --git a/media/libaudiohal/impl/StreamHalHidl.h b/media/libaudiohal/impl/StreamHalHidl.h
index 54fbefe..5361047 100644
--- a/media/libaudiohal/impl/StreamHalHidl.h
+++ b/media/libaudiohal/impl/StreamHalHidl.h
@@ -253,7 +253,7 @@
     virtual status_t getCapturePosition(int64_t *frames, int64_t *time);
 
     // Get active microphones
-    virtual status_t getActiveMicrophones(std::vector<media::MicrophoneInfo> *microphones);
+    status_t getActiveMicrophones(std::vector<media::MicrophoneInfoFw> *microphones) override;
 
     // Set microphone direction (for processing)
     virtual status_t setPreferredMicrophoneDirection(
diff --git a/media/libaudiohal/include/media/audiohal/StreamHalInterface.h b/media/libaudiohal/include/media/audiohal/StreamHalInterface.h
index a651d9b..a780a17 100644
--- a/media/libaudiohal/include/media/audiohal/StreamHalInterface.h
+++ b/media/libaudiohal/include/media/audiohal/StreamHalInterface.h
@@ -19,8 +19,8 @@
 
 #include <vector>
 
+#include <android/media/MicrophoneInfoFw.h>
 #include <media/audiohal/EffectHalInterface.h>
-#include <media/MicrophoneInfo.h>
 #include <system/audio.h>
 #include <utils/Errors.h>
 #include <utils/RefBase.h>
@@ -273,7 +273,7 @@
     virtual status_t getCapturePosition(int64_t *frames, int64_t *time) = 0;
 
     // Get active microphones
-    virtual status_t getActiveMicrophones(std::vector<media::MicrophoneInfo> *microphones) = 0;
+    virtual status_t getActiveMicrophones(std::vector<media::MicrophoneInfoFw> *microphones) = 0;
 
     // Set direction for capture processing
     virtual status_t setPreferredMicrophoneDirection(audio_microphone_direction_t) = 0;
diff --git a/media/libmedia/IMediaRecorder.cpp b/media/libmedia/IMediaRecorder.cpp
index 154988d..e191999 100644
--- a/media/libmedia/IMediaRecorder.cpp
+++ b/media/libmedia/IMediaRecorder.cpp
@@ -428,7 +428,7 @@
         return reply.readInt32();
     }
 
-    status_t getActiveMicrophones(std::vector<media::MicrophoneInfo>* activeMicrophones)
+    status_t getActiveMicrophones(std::vector<media::MicrophoneInfoFw>* activeMicrophones)
     {
         ALOGV("getActiveMicrophones");
         Parcel data, reply;
@@ -756,7 +756,7 @@
         case GET_ACTIVE_MICROPHONES: {
             ALOGV("GET_ACTIVE_MICROPHONES");
             CHECK_INTERFACE(IMediaRecorder, data, reply);
-            std::vector<media::MicrophoneInfo> activeMicrophones;
+            std::vector<media::MicrophoneInfoFw> activeMicrophones;
             status_t status = getActiveMicrophones(&activeMicrophones);
             reply->writeInt32(status);
             if (status != NO_ERROR) {
diff --git a/media/libmedia/include/media/IMediaRecorder.h b/media/libmedia/include/media/IMediaRecorder.h
index 6e69782..05da5c2 100644
--- a/media/libmedia/include/media/IMediaRecorder.h
+++ b/media/libmedia/include/media/IMediaRecorder.h
@@ -18,8 +18,8 @@
 #ifndef ANDROID_IMEDIARECORDER_H
 #define ANDROID_IMEDIARECORDER_H
 
+#include <android/media/MicrophoneInfoFw.h>
 #include <binder/IInterface.h>
-#include <media/MicrophoneInfo.h>
 #include <system/audio.h>
 #include <vector>
 
@@ -74,7 +74,7 @@
     virtual status_t getRoutedDeviceId(audio_port_handle_t *deviceId) = 0;
     virtual status_t enableAudioDeviceCallback(bool enabled) = 0;
     virtual status_t getActiveMicrophones(
-                        std::vector<media::MicrophoneInfo>* activeMicrophones) = 0;
+                        std::vector<media::MicrophoneInfoFw>* activeMicrophones) = 0;
     virtual status_t setPreferredMicrophoneDirection(audio_microphone_direction_t direction) = 0;
     virtual status_t setPreferredMicrophoneFieldDimension(float zoom) = 0;
     virtual status_t getPortId(audio_port_handle_t *portId) = 0;
diff --git a/media/libmedia/include/media/MediaRecorderBase.h b/media/libmedia/include/media/MediaRecorderBase.h
index 2b7818d..82ec9c5 100644
--- a/media/libmedia/include/media/MediaRecorderBase.h
+++ b/media/libmedia/include/media/MediaRecorderBase.h
@@ -19,7 +19,6 @@
 #define MEDIA_RECORDER_BASE_H_
 
 #include <media/AudioSystem.h>
-#include <media/MicrophoneInfo.h>
 #include <media/mediarecorder.h>
 #include <android/content/AttributionSourceState.h>
 
@@ -74,7 +73,7 @@
     virtual void setAudioDeviceCallback(const sp<AudioSystem::AudioDeviceCallback>& callback) = 0;
     virtual status_t enableAudioDeviceCallback(bool enabled) = 0;
     virtual status_t getActiveMicrophones(
-                        std::vector<media::MicrophoneInfo>* activeMicrophones) = 0;
+                        std::vector<media::MicrophoneInfoFw>* activeMicrophones) = 0;
     virtual status_t setPreferredMicrophoneDirection(audio_microphone_direction_t direction) = 0;
     virtual status_t setPreferredMicrophoneFieldDimension(float zoom) = 0;
     virtual status_t getPortId(audio_port_handle_t *portId) const = 0;
diff --git a/media/libmedia/include/media/mediarecorder.h b/media/libmedia/include/media/mediarecorder.h
index dd18144..602f72e 100644
--- a/media/libmedia/include/media/mediarecorder.h
+++ b/media/libmedia/include/media/mediarecorder.h
@@ -24,7 +24,7 @@
 #include <utils/Errors.h>
 #include <media/IMediaRecorderClient.h>
 #include <media/IMediaDeathNotifier.h>
-#include <media/MicrophoneInfo.h>
+#include <android/media/MicrophoneInfoFw.h>
 #include <android/content/AttributionSourceState.h>
 
 namespace android {
@@ -268,7 +268,7 @@
     status_t    setInputDevice(audio_port_handle_t deviceId);
     status_t    getRoutedDeviceId(audio_port_handle_t *deviceId);
     status_t    enableAudioDeviceCallback(bool enabled);
-    status_t    getActiveMicrophones(std::vector<media::MicrophoneInfo>* activeMicrophones);
+    status_t    getActiveMicrophones(std::vector<media::MicrophoneInfoFw>* activeMicrophones);
     status_t    setPreferredMicrophoneDirection(audio_microphone_direction_t direction);
     status_t    setPreferredMicrophoneFieldDimension(float zoom);
 
diff --git a/media/libmedia/mediarecorder.cpp b/media/libmedia/mediarecorder.cpp
index cf12c36..bd06fb6 100644
--- a/media/libmedia/mediarecorder.cpp
+++ b/media/libmedia/mediarecorder.cpp
@@ -884,7 +884,8 @@
     return mMediaRecorder->enableAudioDeviceCallback(enabled);
 }
 
-status_t MediaRecorder::getActiveMicrophones(std::vector<media::MicrophoneInfo>* activeMicrophones)
+status_t MediaRecorder::getActiveMicrophones(
+        std::vector<media::MicrophoneInfoFw>* activeMicrophones)
 {
     ALOGV("getActiveMicrophones");
 
diff --git a/media/libmediaplayerservice/MediaRecorderClient.cpp b/media/libmediaplayerservice/MediaRecorderClient.cpp
index 4aa80be..58fc06d 100644
--- a/media/libmediaplayerservice/MediaRecorderClient.cpp
+++ b/media/libmediaplayerservice/MediaRecorderClient.cpp
@@ -563,7 +563,7 @@
 }
 
 status_t MediaRecorderClient::getActiveMicrophones(
-        std::vector<media::MicrophoneInfo>* activeMicrophones) {
+        std::vector<media::MicrophoneInfoFw>* activeMicrophones) {
     ALOGV("getActiveMicrophones");
     Mutex::Autolock lock(mLock);
     if (mRecorder != NULL) {
diff --git a/media/libmediaplayerservice/MediaRecorderClient.h b/media/libmediaplayerservice/MediaRecorderClient.h
index dcb9f82..dec0c99 100644
--- a/media/libmediaplayerservice/MediaRecorderClient.h
+++ b/media/libmediaplayerservice/MediaRecorderClient.h
@@ -83,7 +83,7 @@
     virtual     status_t   getRoutedDeviceId(audio_port_handle_t* deviceId);
     virtual     status_t   enableAudioDeviceCallback(bool enabled);
     virtual     status_t   getActiveMicrophones(
-                              std::vector<media::MicrophoneInfo>* activeMicrophones);
+                              std::vector<media::MicrophoneInfoFw>* activeMicrophones);
     virtual     status_t   setPreferredMicrophoneDirection(audio_microphone_direction_t direction);
     virtual     status_t   setPreferredMicrophoneFieldDimension(float zoom);
                 status_t   getPortId(audio_port_handle_t *portId) override;
diff --git a/media/libmediaplayerservice/StagefrightRecorder.cpp b/media/libmediaplayerservice/StagefrightRecorder.cpp
index 6497b58..ec79b99 100644
--- a/media/libmediaplayerservice/StagefrightRecorder.cpp
+++ b/media/libmediaplayerservice/StagefrightRecorder.cpp
@@ -2576,7 +2576,7 @@
 }
 
 status_t StagefrightRecorder::getActiveMicrophones(
-        std::vector<media::MicrophoneInfo>* activeMicrophones) {
+        std::vector<media::MicrophoneInfoFw>* activeMicrophones) {
     if (mAudioSourceNode != 0) {
         return mAudioSourceNode->getActiveMicrophones(activeMicrophones);
     }
diff --git a/media/libmediaplayerservice/StagefrightRecorder.h b/media/libmediaplayerservice/StagefrightRecorder.h
index 0801101..0b6a5bb 100644
--- a/media/libmediaplayerservice/StagefrightRecorder.h
+++ b/media/libmediaplayerservice/StagefrightRecorder.h
@@ -83,7 +83,7 @@
     virtual status_t getRoutedDeviceId(audio_port_handle_t* deviceId);
     virtual void setAudioDeviceCallback(const sp<AudioSystem::AudioDeviceCallback>& callback);
     virtual status_t enableAudioDeviceCallback(bool enabled);
-    virtual status_t getActiveMicrophones(std::vector<media::MicrophoneInfo>* activeMicrophones);
+    virtual status_t getActiveMicrophones(std::vector<media::MicrophoneInfoFw>* activeMicrophones);
     virtual status_t setPreferredMicrophoneDirection(audio_microphone_direction_t direction);
     virtual status_t setPreferredMicrophoneFieldDimension(float zoom);
             status_t getPortId(audio_port_handle_t *portId) const override;
diff --git a/media/libmediaplayerservice/fuzzer/mediarecorder_fuzzer.cpp b/media/libmediaplayerservice/fuzzer/mediarecorder_fuzzer.cpp
index 4f2da67..b197042 100644
--- a/media/libmediaplayerservice/fuzzer/mediarecorder_fuzzer.cpp
+++ b/media/libmediaplayerservice/fuzzer/mediarecorder_fuzzer.cpp
@@ -198,7 +198,7 @@
     mStfRecorder->setInputDevice(deviceId);
     mStfRecorder->getRoutedDeviceId(&deviceId);
 
-    vector<android::media::MicrophoneInfo> activeMicrophones{};
+    vector<android::media::MicrophoneInfoFw> activeMicrophones{};
     mStfRecorder->getActiveMicrophones(&activeMicrophones);
 
     int32_t portId;
diff --git a/media/libmediaplayerservice/tests/stagefrightRecorder/StagefrightRecorderTest.cpp b/media/libmediaplayerservice/tests/stagefrightRecorder/StagefrightRecorderTest.cpp
index 162c187..9514021 100644
--- a/media/libmediaplayerservice/tests/stagefrightRecorder/StagefrightRecorderTest.cpp
+++ b/media/libmediaplayerservice/tests/stagefrightRecorder/StagefrightRecorderTest.cpp
@@ -286,7 +286,7 @@
     // Record media for 4 secs
     std::this_thread::sleep_for(std::chrono::seconds(kClipDurationInSec));
 
-    std::vector<media::MicrophoneInfo> activeMicrophones{};
+    std::vector<media::MicrophoneInfoFw> activeMicrophones{};
     status = mStfRecorder->getActiveMicrophones(&activeMicrophones);
     ASSERT_EQ(status, OK) << "Failed to get Active Microphones";
     ASSERT_GT(activeMicrophones.size(), 0) << "No active microphones are found";
diff --git a/media/libstagefright/AudioSource.cpp b/media/libstagefright/AudioSource.cpp
index bfe8538..584dad6 100644
--- a/media/libstagefright/AudioSource.cpp
+++ b/media/libstagefright/AudioSource.cpp
@@ -522,7 +522,7 @@
 }
 
 status_t AudioSource::getActiveMicrophones(
-        std::vector<media::MicrophoneInfo>* activeMicrophones) {
+        std::vector<media::MicrophoneInfoFw>* activeMicrophones) {
     if (mRecord != 0) {
         return mRecord->getActiveMicrophones(activeMicrophones);
     }
diff --git a/media/libstagefright/include/media/stagefright/AudioSource.h b/media/libstagefright/include/media/stagefright/AudioSource.h
index 5e84977..65d5246 100644
--- a/media/libstagefright/include/media/stagefright/AudioSource.h
+++ b/media/libstagefright/include/media/stagefright/AudioSource.h
@@ -21,7 +21,6 @@
 #include <media/AudioRecord.h>
 #include <media/AudioSystem.h>
 #include <media/stagefright/MediaSource.h>
-#include <media/MicrophoneInfo.h>
 #include <media/stagefright/MediaBuffer.h>
 #include <utils/List.h>
 
@@ -83,7 +82,7 @@
     status_t addAudioDeviceCallback(const sp<AudioSystem::AudioDeviceCallback>& callback);
     status_t removeAudioDeviceCallback(const sp<AudioSystem::AudioDeviceCallback>& callback);
 
-    status_t getActiveMicrophones(std::vector<media::MicrophoneInfo>* activeMicrophones);
+    status_t getActiveMicrophones(std::vector<media::MicrophoneInfoFw>* activeMicrophones);
     status_t setPreferredMicrophoneDirection(audio_microphone_direction_t direction);
     status_t setPreferredMicrophoneFieldDimension(float zoom);
 
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index 7bb0fd3..3b73333 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -2857,7 +2857,7 @@
     return mAudioManager.load();
 }
 
-status_t AudioFlinger::getMicrophones(std::vector<media::MicrophoneInfo> *microphones)
+status_t AudioFlinger::getMicrophones(std::vector<media::MicrophoneInfoFw> *microphones)
 {
     AutoMutex lock(mHardwareLock);
     status_t status = INVALID_OPERATION;
@@ -2870,8 +2870,12 @@
         mHardwareStatus = AUDIO_HW_IDLE;
         if (devStatus == NO_ERROR) {
             // report success if at least one HW module supports the function.
-            std::transform(mics.begin(), mics.end(), std::back_inserter(*microphones),
-                           [](auto& mic) { return media::MicrophoneInfo(mic); });
+            std::transform(mics.begin(), mics.end(), std::back_inserter(*microphones), [](auto& mic)
+            {
+                auto microphone =
+                        legacy2aidl_audio_microphone_characteristic_t_MicrophoneInfoFw(mic);
+                return microphone.ok() ? microphone.value() : media::MicrophoneInfoFw{};
+            });
             status = NO_ERROR;
         }
     }
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index e8133d9..9fc503b 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -281,7 +281,7 @@
             bool isAudioPolicyReady() const { return mAudioPolicyReady.load(); }
 
 
-    virtual status_t getMicrophones(std::vector<media::MicrophoneInfo> *microphones);
+    virtual status_t getMicrophones(std::vector<media::MicrophoneInfoFw> *microphones);
 
     virtual status_t setAudioHalPids(const std::vector<pid_t>& pids);
 
@@ -726,7 +726,7 @@
                 int /*audio_session_t*/ triggerSession);
         virtual binder::Status   stop();
         virtual binder::Status   getActiveMicrophones(
-                std::vector<media::MicrophoneInfoData>* activeMicrophones);
+                std::vector<media::MicrophoneInfoFw>* activeMicrophones);
         virtual binder::Status   setPreferredMicrophoneDirection(
                 int /*audio_microphone_direction_t*/ direction);
         virtual binder::Status   setPreferredMicrophoneFieldDimension(float zoom);
diff --git a/services/audioflinger/RecordTracks.h b/services/audioflinger/RecordTracks.h
index daec57e..f0a5f76 100644
--- a/services/audioflinger/RecordTracks.h
+++ b/services/audioflinger/RecordTracks.h
@@ -73,7 +73,8 @@
             void        setSilenced(bool silenced) { if (!isPatchTrack()) mSilenced = silenced; }
             bool        isSilenced() const { return mSilenced; }
 
-            status_t    getActiveMicrophones(std::vector<media::MicrophoneInfo>* activeMicrophones);
+            status_t    getActiveMicrophones(
+                    std::vector<media::MicrophoneInfoFw>* activeMicrophones);
 
             status_t    setPreferredMicrophoneDirection(audio_microphone_direction_t direction);
             status_t    setPreferredMicrophoneFieldDimension(float zoom);
diff --git a/services/audioflinger/Threads.cpp b/services/audioflinger/Threads.cpp
index 4ca8a8e..fdf3306 100644
--- a/services/audioflinger/Threads.cpp
+++ b/services/audioflinger/Threads.cpp
@@ -8949,7 +8949,7 @@
 }
 
 status_t AudioFlinger::RecordThread::getActiveMicrophones(
-        std::vector<media::MicrophoneInfo>* activeMicrophones)
+        std::vector<media::MicrophoneInfoFw>* activeMicrophones)
 {
     ALOGV("RecordThread::getActiveMicrophones");
     AutoMutex _l(mLock);
diff --git a/services/audioflinger/Threads.h b/services/audioflinger/Threads.h
index f829efc..ddae7ae 100644
--- a/services/audioflinger/Threads.h
+++ b/services/audioflinger/Threads.h
@@ -1982,7 +1982,8 @@
             // Sets the UID records silence
             void        setRecordSilenced(audio_port_handle_t portId, bool silenced);
 
-            status_t    getActiveMicrophones(std::vector<media::MicrophoneInfo>* activeMicrophones);
+            status_t    getActiveMicrophones(
+                    std::vector<media::MicrophoneInfoFw>* activeMicrophones);
 
             status_t    setPreferredMicrophoneDirection(audio_microphone_direction_t direction);
             status_t    setPreferredMicrophoneFieldDimension(float zoom);
diff --git a/services/audioflinger/Tracks.cpp b/services/audioflinger/Tracks.cpp
index 382e4f9..1fbf720 100644
--- a/services/audioflinger/Tracks.cpp
+++ b/services/audioflinger/Tracks.cpp
@@ -2391,15 +2391,9 @@
 }
 
 binder::Status AudioFlinger::RecordHandle::getActiveMicrophones(
-        std::vector<media::MicrophoneInfoData>* activeMicrophones) {
+        std::vector<media::MicrophoneInfoFw>* activeMicrophones) {
     ALOGV("%s()", __func__);
-    std::vector<media::MicrophoneInfo> mics;
-    status_t status = mRecordTrack->getActiveMicrophones(&mics);
-    activeMicrophones->resize(mics.size());
-    for (size_t i = 0; status == OK && i < mics.size(); ++i) {
-       status = mics[i].writeToParcelable(&activeMicrophones->at(i));
-    }
-    return binderStatusFromStatusT(status);
+    return binderStatusFromStatusT(mRecordTrack->getActiveMicrophones(activeMicrophones));
 }
 
 binder::Status AudioFlinger::RecordHandle::setPreferredMicrophoneDirection(
@@ -2719,7 +2713,7 @@
 }
 
 status_t AudioFlinger::RecordThread::RecordTrack::getActiveMicrophones(
-        std::vector<media::MicrophoneInfo>* activeMicrophones)
+        std::vector<media::MicrophoneInfoFw>* activeMicrophones)
 {
     sp<ThreadBase> thread = mThread.promote();
     if (thread != 0) {