diff --git a/audio/aidl/default/AudioPolicyConfigXmlConverter.cpp b/audio/aidl/default/AudioPolicyConfigXmlConverter.cpp
new file mode 100644
index 0000000..6290912
--- /dev/null
+++ b/audio/aidl/default/AudioPolicyConfigXmlConverter.cpp
@@ -0,0 +1,130 @@
+/*
+ * Copyright (C) 2022 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.
+ */
+
+#include <fcntl.h>
+#include <inttypes.h>
+#include <unistd.h>
+
+#include <functional>
+#include <unordered_map>
+
+#include <aidl/android/media/audio/common/AudioHalEngineConfig.h>
+#include <system/audio-base-utils.h>
+
+#include "core-impl/AudioPolicyConfigXmlConverter.h"
+
+using aidl::android::media::audio::common::AudioHalEngineConfig;
+using aidl::android::media::audio::common::AudioHalVolumeCurve;
+using aidl::android::media::audio::common::AudioHalVolumeGroup;
+using aidl::android::media::audio::common::AudioStreamType;
+
+namespace xsd = android::audio::policy::configuration;
+
+namespace aidl::android::hardware::audio::core::internal {
+
+static const int kDefaultVolumeIndexMin = 0;
+static const int kDefaultVolumeIndexMax = 100;
+static const int KVolumeIndexDeferredToAudioService = -1;
+/**
+ * Valid curve points take the form "<index>,<attenuationMb>", where the index
+ * must be in the range [0,100]. kInvalidCurvePointIndex is used to indicate
+ * that a point was formatted incorrectly (e.g. if a vendor accidentally typed a
+ * '.' instead of a ',' in their XML) -- using such a curve point will result in
+ * failed VTS tests.
+ */
+static const int8_t kInvalidCurvePointIndex = -1;
+
+AudioHalVolumeCurve::CurvePoint AudioPolicyConfigXmlConverter::convertCurvePointToAidl(
+        const std::string& xsdcCurvePoint) {
+    AudioHalVolumeCurve::CurvePoint aidlCurvePoint{};
+    if (sscanf(xsdcCurvePoint.c_str(), "%" SCNd8 ",%d", &aidlCurvePoint.index,
+               &aidlCurvePoint.attenuationMb) != 2) {
+        aidlCurvePoint.index = kInvalidCurvePointIndex;
+    }
+    return aidlCurvePoint;
+}
+
+AudioHalVolumeCurve AudioPolicyConfigXmlConverter::convertVolumeCurveToAidl(
+        const xsd::Volume& xsdcVolumeCurve) {
+    AudioHalVolumeCurve aidlVolumeCurve;
+    aidlVolumeCurve.deviceCategory =
+            static_cast<AudioHalVolumeCurve::DeviceCategory>(xsdcVolumeCurve.getDeviceCategory());
+    if (xsdcVolumeCurve.hasRef()) {
+        if (mVolumesReferenceMap.empty()) {
+            mVolumesReferenceMap = generateReferenceMap<xsd::Volumes, xsd::Reference>(
+                    getXsdcConfig()->getVolumes());
+        }
+        aidlVolumeCurve.curvePoints =
+                convertCollectionToAidl<std::string, AudioHalVolumeCurve::CurvePoint>(
+                        mVolumesReferenceMap.at(xsdcVolumeCurve.getRef()).getPoint(),
+                        std::bind(&AudioPolicyConfigXmlConverter::convertCurvePointToAidl, this,
+                                  std::placeholders::_1));
+    } else {
+        aidlVolumeCurve.curvePoints =
+                convertCollectionToAidl<std::string, AudioHalVolumeCurve::CurvePoint>(
+                        xsdcVolumeCurve.getPoint(),
+                        std::bind(&AudioPolicyConfigXmlConverter::convertCurvePointToAidl, this,
+                                  std::placeholders::_1));
+    }
+    return aidlVolumeCurve;
+}
+
+void AudioPolicyConfigXmlConverter::mapStreamToVolumeCurve(const xsd::Volume& xsdcVolumeCurve) {
+    mStreamToVolumeCurvesMap[xsdcVolumeCurve.getStream()].push_back(
+            convertVolumeCurveToAidl(xsdcVolumeCurve));
+}
+
+const AudioHalEngineConfig& AudioPolicyConfigXmlConverter::getAidlEngineConfig() {
+    if (mAidlEngineConfig.volumeGroups.empty() && getXsdcConfig() &&
+        getXsdcConfig()->hasVolumes()) {
+        parseVolumes();
+    }
+    return mAidlEngineConfig;
+}
+
+void AudioPolicyConfigXmlConverter::mapStreamsToVolumeCurves() {
+    if (getXsdcConfig()->hasVolumes()) {
+        for (const xsd::Volumes& xsdcWrapperType : getXsdcConfig()->getVolumes()) {
+            for (const xsd::Volume& xsdcVolume : xsdcWrapperType.getVolume()) {
+                mapStreamToVolumeCurve(xsdcVolume);
+            }
+        }
+    }
+}
+
+void AudioPolicyConfigXmlConverter::addVolumeGroupstoEngineConfig() {
+    for (const auto& [xsdcStream, volumeCurves] : mStreamToVolumeCurvesMap) {
+        AudioHalVolumeGroup volumeGroup;
+        volumeGroup.name = xsd::toString(xsdcStream);
+        if (static_cast<int>(xsdcStream) >= AUDIO_STREAM_PUBLIC_CNT) {
+            volumeGroup.minIndex = kDefaultVolumeIndexMin;
+            volumeGroup.maxIndex = kDefaultVolumeIndexMax;
+        } else {
+            volumeGroup.minIndex = KVolumeIndexDeferredToAudioService;
+            volumeGroup.maxIndex = KVolumeIndexDeferredToAudioService;
+        }
+        volumeGroup.volumeCurves = volumeCurves;
+        mAidlEngineConfig.volumeGroups.push_back(std::move(volumeGroup));
+    }
+}
+
+void AudioPolicyConfigXmlConverter::parseVolumes() {
+    if (mStreamToVolumeCurvesMap.empty() && getXsdcConfig()->hasVolumes()) {
+        mapStreamsToVolumeCurves();
+        addVolumeGroupstoEngineConfig();
+    }
+}
+}  // namespace aidl::android::hardware::audio::core::internal