Merge "SpatializerPoseController: Fix destruction order"
diff --git a/media/audioaidlconversion/AidlConversionNdkCpp.cpp b/media/audioaidlconversion/AidlConversionNdkCpp.cpp
new file mode 100644
index 0000000..36f6128
--- /dev/null
+++ b/media/audioaidlconversion/AidlConversionNdkCpp.cpp
@@ -0,0 +1,128 @@
+/*
+ * Copyright (C) 2023 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 <algorithm>
+#include <type_traits>
+
+#define LOG_TAG "AidlConversionNdkCpp"
+#include <utils/Log.h>
+
+#include <android-base/expected.h>
+#include <android/binder_auto_utils.h>
+#include <android/binder_enums.h>
+#include <android/binder_parcel.h>
+#include <binder/Enums.h>
+#include <media/AidlConversionNdkCpp.h>
+#include <media/AidlConversionUtil.h>
+
+using aidl::android::aidl_utils::statusTFromBinderStatusT;
+
+namespace android {
+
+namespace {
+
+// cpp2ndk and ndk2cpp are universal converters which work for any type,
+// however they are not the most efficient way to convert due to extra
+// marshaling / unmarshaling step.
+
+template<typename NdkType, typename CppType>
+ConversionResult<NdkType> cpp2ndk(const CppType& cpp) {
+    Parcel cppParcel;
+    RETURN_IF_ERROR(cpp.writeToParcel(&cppParcel));
+    ::ndk::ScopedAParcel ndkParcel(AParcel_create());
+    const int32_t ndkParcelBegin = AParcel_getDataPosition(ndkParcel.get());
+    RETURN_IF_ERROR(statusTFromBinderStatusT(AParcel_unmarshal(
+                            ndkParcel.get(), cppParcel.data(), cppParcel.dataSize())));
+    RETURN_IF_ERROR(statusTFromBinderStatusT(AParcel_setDataPosition(
+                            ndkParcel.get(), ndkParcelBegin)));
+    NdkType ndk;
+    RETURN_IF_ERROR(statusTFromBinderStatusT(ndk.readFromParcel(ndkParcel.get())));
+    return ndk;
+}
+
+template<typename CppType, typename NdkType>
+ConversionResult<CppType> ndk2cpp(const NdkType& ndk) {
+    ::ndk::ScopedAParcel ndkParcel(AParcel_create());
+    RETURN_IF_ERROR(statusTFromBinderStatusT(ndk.writeToParcel(ndkParcel.get())));
+    const int32_t ndkParcelDataSize = AParcel_getDataSize(ndkParcel.get());
+    if (ndkParcelDataSize < 0) {
+        return base::unexpected(BAD_VALUE);
+    }
+    // Parcel does not expose its data in a mutable form, we have to use an intermediate buffer.
+    std::vector<uint8_t> parcelData(static_cast<size_t>(ndkParcelDataSize));
+    RETURN_IF_ERROR(statusTFromBinderStatusT(AParcel_marshal(
+                            ndkParcel.get(), parcelData.data(), 0, ndkParcelDataSize)));
+    Parcel cppParcel;
+    RETURN_IF_ERROR(cppParcel.setData(parcelData.data(), parcelData.size()));
+    CppType cpp;
+    RETURN_IF_ERROR(cpp.readFromParcel(&cppParcel));
+    return cpp;
+}
+
+// cpp2ndk_Enum and ndk2cpp_Enum are more efficient implementations specifically for enums.
+
+template<typename OutEnum, typename OutEnumRange, typename InEnum>
+        ConversionResult<OutEnum> convertEnum(const OutEnumRange& range, InEnum e) {
+    using InIntType = std::underlying_type_t<InEnum>;
+    static_assert(std::is_same_v<InIntType, std::underlying_type_t<OutEnum>>);
+
+    InIntType inEnumIndex = static_cast<InIntType>(e);
+    OutEnum outEnum = static_cast<OutEnum>(inEnumIndex);
+    if (std::find(range.begin(), range.end(), outEnum) == range.end()) {
+        return base::unexpected(BAD_VALUE);
+    }
+    return outEnum;
+}
+
+template<typename NdkEnum, typename CppEnum>
+        ConversionResult<NdkEnum> cpp2ndk_Enum(CppEnum cpp) {
+    return convertEnum<NdkEnum>(::ndk::enum_range<NdkEnum>(), cpp);
+}
+
+template<typename CppEnum, typename NdkEnum>
+        ConversionResult<CppEnum> ndk2cpp_Enum(NdkEnum ndk) {
+    return convertEnum<CppEnum>(enum_range<CppEnum>(), ndk);
+}
+
+}  // namespace
+
+#define GENERATE_CONVERTERS(packageName, className)                     \
+    ConversionResult<::aidl::packageName::className> cpp2ndk_##className( \
+            const ::packageName::className& cpp) {                      \
+        return cpp2ndk<::aidl::packageName::className>(cpp);            \
+    }                                                                   \
+    ConversionResult<::packageName::className> ndk2cpp_##className(     \
+            const ::aidl::packageName::className& ndk) {                \
+        return ndk2cpp<::packageName::className>(ndk);                  \
+    }
+
+#define GENERATE_ENUM_CONVERTERS(packageName, className)                \
+    ConversionResult<::aidl::packageName::className> cpp2ndk_##className( \
+            const ::packageName::className& cpp) {                      \
+        return cpp2ndk_Enum<::aidl::packageName::className>(cpp);       \
+    }                                                                   \
+    ConversionResult<::packageName::className> ndk2cpp_##className(     \
+            const ::aidl::packageName::className& ndk) {                \
+        return ndk2cpp_Enum<::packageName::className>(ndk);             \
+}
+
+GENERATE_CONVERTERS(android::media::audio::common, AudioFormatDescription);
+GENERATE_CONVERTERS(android::media::audio::common, AudioHalEngineConfig);
+GENERATE_CONVERTERS(android::media::audio::common, AudioMMapPolicyInfo);
+GENERATE_ENUM_CONVERTERS(android::media::audio::common, AudioMMapPolicyType);
+GENERATE_CONVERTERS(android::media::audio::common, AudioPort);
+
+}  // namespace android
diff --git a/media/audioaidlconversion/Android.bp b/media/audioaidlconversion/Android.bp
index 1ec4849..d3a5755 100644
--- a/media/audioaidlconversion/Android.bp
+++ b/media/audioaidlconversion/Android.bp
@@ -212,3 +212,27 @@
     ],
     min_sdk_version: "31", //AParcelableHolder has been introduced in 31
 }
+
+/**
+ * Conversions between the NDK and CPP backends for common types.
+ */
+cc_library {
+    name: "libaudio_aidl_conversion_common_ndk_cpp",
+    srcs: [
+        "AidlConversionNdkCpp.cpp",
+    ],
+    defaults: [
+        "audio_aidl_conversion_common_default",
+        "audio_aidl_conversion_common_util_default",
+        "latest_android_media_audio_common_types_cpp_shared",
+        "latest_android_media_audio_common_types_ndk_shared",
+    ],
+    shared_libs: [
+        "libbinder_ndk",
+        "libbase",
+    ],
+    cflags: [
+        "-DBACKEND_CPP_NDK",
+    ],
+    min_sdk_version: "33", //AParcel_unmarshal has been introduced in 33
+}
diff --git a/media/audioaidlconversion/TEST_MAPPING b/media/audioaidlconversion/TEST_MAPPING
index a0c9759..903b88a 100644
--- a/media/audioaidlconversion/TEST_MAPPING
+++ b/media/audioaidlconversion/TEST_MAPPING
@@ -1,7 +1,8 @@
 {
   "presubmit": [
     {
-      "name": "audio_aidl_ndk_conversion_tests"
+      "name": "audio_aidl_ndk_conversion_tests",
+      "name": "audio_aidl_ndk_cpp_conversion_tests"
     }
   ]
 }
diff --git a/media/audioaidlconversion/include/media/AidlConversionNdkCpp.h b/media/audioaidlconversion/include/media/AidlConversionNdkCpp.h
new file mode 100644
index 0000000..09f1c22
--- /dev/null
+++ b/media/audioaidlconversion/include/media/AidlConversionNdkCpp.h
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2023 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.
+ */
+
+#pragma once
+
+/**
+ * Conversions between the NDK and CPP backends for common types.
+ */
+#include <aidl/android/media/audio/common/AudioFormatDescription.h>
+#include <aidl/android/media/audio/common/AudioHalEngineConfig.h>
+#include <aidl/android/media/audio/common/AudioMMapPolicyInfo.h>
+#include <aidl/android/media/audio/common/AudioMMapPolicyType.h>
+#include <aidl/android/media/audio/common/AudioPort.h>
+#include <android/media/audio/common/AudioFormatDescription.h>
+#include <android/media/audio/common/AudioHalEngineConfig.h>
+#include <android/media/audio/common/AudioMMapPolicyInfo.h>
+#include <android/media/audio/common/AudioMMapPolicyType.h>
+#include <android/media/audio/common/AudioPort.h>
+#include <media/AidlConversionUtil.h>
+
+namespace android {
+
+#define DECLARE_CONVERTERS(packageName, className)                       \
+    ConversionResult<::aidl::packageName::className>                    \
+    cpp2ndk_##className(const ::packageName::className& cpp);           \
+    ConversionResult<::packageName::className>                          \
+    ndk2cpp_##className(const ::aidl::packageName::className& ndk);
+
+DECLARE_CONVERTERS(android::media::audio::common, AudioFormatDescription);
+DECLARE_CONVERTERS(android::media::audio::common, AudioHalEngineConfig);
+DECLARE_CONVERTERS(android::media::audio::common, AudioMMapPolicyInfo);
+DECLARE_CONVERTERS(android::media::audio::common, AudioMMapPolicyType);
+DECLARE_CONVERTERS(android::media::audio::common, AudioPort);
+
+#undef DECLARE_CONVERTERS
+
+}  // namespace android
diff --git a/media/audioaidlconversion/include/media/AidlConversionUtil-impl.h b/media/audioaidlconversion/include/media/AidlConversionUtil-impl.h
index b179cbb..f49f681 100644
--- a/media/audioaidlconversion/include/media/AidlConversionUtil-impl.h
+++ b/media/audioaidlconversion/include/media/AidlConversionUtil-impl.h
@@ -389,6 +389,10 @@
         ?: statusTFromExceptionCode(status.getExceptionCode()); // a service-side error with a
                                                      // standard Java exception (fromExceptionCode)
 }
+
+static inline ::android::status_t statusTFromBinderStatusT(binder_status_t status) {
+    return statusTFromBinderStatus(::ndk::ScopedAStatus::fromStatus(status));
+}
 #endif
 
 /**
diff --git a/media/audioaidlconversion/tests/Android.bp b/media/audioaidlconversion/tests/Android.bp
index de7c8a2..88b2cc9 100644
--- a/media/audioaidlconversion/tests/Android.bp
+++ b/media/audioaidlconversion/tests/Android.bp
@@ -44,3 +44,27 @@
         "-DBACKEND_NDK",
     ],
 }
+
+cc_test {
+    name: "audio_aidl_ndk_cpp_conversion_tests",
+
+    defaults: [
+        "latest_android_media_audio_common_types_cpp_static",
+        "latest_android_media_audio_common_types_ndk_static",
+        "libaudio_aidl_conversion_tests_defaults",
+    ],
+    srcs: ["audio_aidl_ndk_cpp_conversion_tests.cpp"],
+    shared_libs: [
+        "libbinder",
+        "libbinder_ndk",
+        "libcutils",
+        "liblog",
+        "libutils",
+    ],
+    static_libs: [
+        "libaudio_aidl_conversion_common_ndk_cpp",
+    ],
+    cflags: [
+        "-DBACKEND_CPP_NDK",
+    ],
+}
diff --git a/media/audioaidlconversion/tests/audio_aidl_ndk_cpp_conversion_tests.cpp b/media/audioaidlconversion/tests/audio_aidl_ndk_cpp_conversion_tests.cpp
new file mode 100644
index 0000000..735a14b
--- /dev/null
+++ b/media/audioaidlconversion/tests/audio_aidl_ndk_cpp_conversion_tests.cpp
@@ -0,0 +1,127 @@
+/*
+ * Copyright (C) 2023 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 <iostream>
+#include <type_traits>
+
+#include <gtest/gtest.h>
+
+#include <media/AidlConversionNdkCpp.h>
+
+namespace {
+template<typename> struct mf_traits {};
+template<class T, class U> struct mf_traits<U T::*> {
+    using member_type = U;
+};
+}  // namespace
+
+// Provide value printers for types generated from AIDL
+// They need to be in the same namespace as the types we intend to print
+#define DEFINE_PRINTING_TEMPLATES()
+    template <typename P>                                                                         \
+    std::enable_if_t<std::is_function_v<typename mf_traits<decltype(&P::toString)>::member_type>, \
+            std::ostream&> operator<<(std::ostream& os, const P& p) {                             \
+        return os << p.toString();                                                                \
+    }                                                                                             \
+    template <typename E>                                                                         \
+    std::enable_if_t<std::is_enum_v<E>, std::ostream&> operator<<(std::ostream& os, const E& e) { \
+        return os << toString(e);                                                                 \
+    }
+
+namespace aidl::android::media::audio::common {
+DEFINE_PRINTING_TEMPLATES();
+}  // namespace aidl::android::media::audio::common
+namespace android::hardware::audio::common {
+DEFINE_PRINTING_TEMPLATES();
+}  // namespace android::hardware::audio::common
+#undef DEFINE_PRINTING_TEMPLATES
+
+using namespace android;
+
+namespace {
+
+using namespace ::aidl::android::media::audio::common;
+
+AudioFormatDescription make_AudioFormatDescription(AudioFormatType type) {
+    AudioFormatDescription result;
+    result.type = type;
+    return result;
+}
+
+AudioFormatDescription make_AudioFormatDescription(PcmType pcm) {
+    auto result = make_AudioFormatDescription(AudioFormatType::PCM);
+    result.pcm = pcm;
+    return result;
+}
+
+AudioFormatDescription make_AudioFormatDescription(const std::string& encoding) {
+    AudioFormatDescription result;
+    result.encoding = encoding;
+    return result;
+}
+
+AudioFormatDescription make_AudioFormatDescription(PcmType transport, const std::string& encoding) {
+    auto result = make_AudioFormatDescription(encoding);
+    result.pcm = transport;
+    return result;
+}
+
+AudioFormatDescription make_AFD_Default() {
+    return AudioFormatDescription{};
+}
+
+AudioFormatDescription make_AFD_Invalid() {
+    return make_AudioFormatDescription(AudioFormatType::SYS_RESERVED_INVALID);
+}
+
+AudioFormatDescription make_AFD_Pcm16Bit() {
+    return make_AudioFormatDescription(PcmType::INT_16_BIT);
+}
+
+AudioFormatDescription make_AFD_Bitstream() {
+    return make_AudioFormatDescription("example");
+}
+
+AudioFormatDescription make_AFD_Encap() {
+    return make_AudioFormatDescription(PcmType::INT_16_BIT, "example.encap");
+}
+
+AudioFormatDescription make_AFD_Encap_with_Enc() {
+    auto afd = make_AFD_Encap();
+    afd.encoding += "+example";
+    return afd;
+}
+
+}  // namespace
+
+// There is no reason to write test for every type which gets converted via parcelable
+// since the conversion code is all the same.
+
+class AudioFormatDescriptionRoundTripTest :
+        public testing::TestWithParam<::aidl::android::media::audio::common::AudioFormatDescription>
+{
+};
+TEST_P(AudioFormatDescriptionRoundTripTest, Ndk2Cpp2Ndk) {
+    const auto& initial = GetParam();
+    auto conv = ndk2cpp_AudioFormatDescription(initial);
+    ASSERT_TRUE(conv.ok());
+    auto convBack = cpp2ndk_AudioFormatDescription(conv.value());
+    ASSERT_TRUE(convBack.ok());
+    EXPECT_EQ(initial, convBack.value());
+}
+INSTANTIATE_TEST_SUITE_P(AudioFormatDescriptionRoundTrip, AudioFormatDescriptionRoundTripTest,
+        testing::Values(make_AFD_Invalid(), make_AFD_Default(), make_AFD_Pcm16Bit(),
+                make_AFD_Bitstream(), make_AFD_Encap(), make_AFD_Encap_with_Enc()));
diff --git a/media/codec2/sfplugin/CCodecBufferChannel.cpp b/media/codec2/sfplugin/CCodecBufferChannel.cpp
index 0142686..137507b 100644
--- a/media/codec2/sfplugin/CCodecBufferChannel.cpp
+++ b/media/codec2/sfplugin/CCodecBufferChannel.cpp
@@ -147,6 +147,8 @@
       mCCodecCallback(callback),
       mFrameIndex(0u),
       mFirstValidFrameIndex(0u),
+      mIsSurfaceToDisplay(false),
+      mHasPresentFenceTimes(false),
       mMetaMode(MODE_NONE),
       mInputMetEos(false),
       mSendEncryptedInfoBuffer(false) {
@@ -983,21 +985,36 @@
 
     int64_t mediaTimeUs = 0;
     (void)buffer->meta()->findInt64("timeUs", &mediaTimeUs);
-    mCCodecCallback->onOutputFramesRendered(mediaTimeUs, timestampNs);
-    trackReleasedFrame(qbo, mediaTimeUs, timestampNs);
-    processRenderedFrames(qbo.frameTimestamps);
+    if (mIsSurfaceToDisplay) {
+        trackReleasedFrame(qbo, mediaTimeUs, timestampNs);
+        processRenderedFrames(qbo.frameTimestamps);
+    } else {
+        // When the surface is an intermediate surface, onFrameRendered is triggered immediately
+        // when the frame is queued to the non-display surface
+        mCCodecCallback->onOutputFramesRendered(mediaTimeUs, timestampNs);
+    }
 
     return OK;
 }
 
 void CCodecBufferChannel::initializeFrameTrackingFor(ANativeWindow * window) {
+    mTrackedFrames.clear();
+
+    int isSurfaceToDisplay = 0;
+    window->query(window, NATIVE_WINDOW_QUEUES_TO_WINDOW_COMPOSER, &isSurfaceToDisplay);
+    mIsSurfaceToDisplay = isSurfaceToDisplay == 1;
+    // No frame tracking is needed if we're not sending frames to the display
+    if (!mIsSurfaceToDisplay) {
+        // Return early so we don't call into SurfaceFlinger (requiring permissions)
+        return;
+    }
+
     int hasPresentFenceTimes = 0;
     window->query(window, NATIVE_WINDOW_FRAME_TIMESTAMPS_SUPPORTS_PRESENT, &hasPresentFenceTimes);
     mHasPresentFenceTimes = hasPresentFenceTimes == 1;
     if (mHasPresentFenceTimes) {
         ALOGI("Using latch times for frame rendered signals - present fences not supported");
     }
-    mTrackedFrames.clear();
 }
 
 void CCodecBufferChannel::trackReleasedFrame(const IGraphicBufferProducer::QueueBufferOutput& qbo,
diff --git a/media/codec2/sfplugin/CCodecBufferChannel.h b/media/codec2/sfplugin/CCodecBufferChannel.h
index 73299d7..e68d8ef 100644
--- a/media/codec2/sfplugin/CCodecBufferChannel.h
+++ b/media/codec2/sfplugin/CCodecBufferChannel.h
@@ -333,6 +333,7 @@
     sp<MemoryDealer> makeMemoryDealer(size_t heapSize);
 
     std::deque<TrackedFrame> mTrackedFrames;
+    bool mIsSurfaceToDisplay;
     bool mHasPresentFenceTimes;
 
     struct OutputSurface {
diff --git a/media/libaudioclient/Android.bp b/media/libaudioclient/Android.bp
index 30658f7..dc7afdb 100644
--- a/media/libaudioclient/Android.bp
+++ b/media/libaudioclient/Android.bp
@@ -300,11 +300,14 @@
         "aidl/android/media/AudioPortRole.aidl",
         "aidl/android/media/AudioPortType.aidl",
         "aidl/android/media/AudioProfileSys.aidl",
+        "aidl/android/media/AudioRoute.aidl",
         "aidl/android/media/AudioTimestampInternal.aidl",
         "aidl/android/media/AudioUniqueIdUse.aidl",
         "aidl/android/media/AudioVibratorInfo.aidl",
+        "aidl/android/media/DeviceConnectedState.aidl",
         "aidl/android/media/EffectDescriptor.aidl",
         "aidl/android/media/TrackSecondaryOutputInfo.aidl",
+        "aidl/android/media/SurroundSoundConfig.aidl",
     ],
     imports: [
         "android.media.audio.common.types-V2",
diff --git a/media/libaudioclient/IAudioFlinger.cpp b/media/libaudioclient/IAudioFlinger.cpp
index 7bf7b98..756597e 100644
--- a/media/libaudioclient/IAudioFlinger.cpp
+++ b/media/libaudioclient/IAudioFlinger.cpp
@@ -803,10 +803,10 @@
 }
 
 status_t AudioFlingerClientAdapter::setDeviceConnectedState(
-        const struct audio_port_v7 *port, bool connected) {
+        const struct audio_port_v7 *port, media::DeviceConnectedState state) {
     media::AudioPortFw aidlPort = VALUE_OR_RETURN_STATUS(
             legacy2aidl_audio_port_v7_AudioPortFw(*port));
-    return statusTFromBinderStatus(mDelegate->setDeviceConnectedState(aidlPort, connected));
+    return statusTFromBinderStatus(mDelegate->setDeviceConnectedState(aidlPort, state));
 }
 
 status_t AudioFlingerClientAdapter::setSimulateDeviceConnections(bool enabled) {
@@ -1354,9 +1354,9 @@
 }
 
 Status AudioFlingerServerAdapter::setDeviceConnectedState(
-        const media::AudioPortFw& port, bool connected) {
+        const media::AudioPortFw& port, media::DeviceConnectedState state) {
     audio_port_v7 portLegacy = VALUE_OR_RETURN_BINDER(aidl2legacy_AudioPortFw_audio_port_v7(port));
-    return Status::fromStatusT(mDelegate->setDeviceConnectedState(&portLegacy, connected));
+    return Status::fromStatusT(mDelegate->setDeviceConnectedState(&portLegacy, state));
 }
 
 Status AudioFlingerServerAdapter::setSimulateDeviceConnections(bool enabled) {
diff --git a/media/libaudioclient/aidl/android/media/AudioRoute.aidl b/media/libaudioclient/aidl/android/media/AudioRoute.aidl
new file mode 100644
index 0000000..5ee2161
--- /dev/null
+++ b/media/libaudioclient/aidl/android/media/AudioRoute.aidl
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2023 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;
+
+/**
+ * TODO(b/280077672): This is a temporary copy of the stable
+ * android.hardware.audio.core.AudioRoute. Interfaces from the Core API do not
+ * support the CPP backend. This copy will be removed either by moving the
+ * AudioRoute from core to a.m.a.common or by switching the framework internal
+ * interfaces to the NDK backend.
+ * {@hide}
+ */
+parcelable AudioRoute {
+    /**
+     * The list of IDs of source audio ports ('AudioPort.id').
+     * There must be at least one source in a valid route and all IDs must be
+     * unique.
+     */
+    int[] sourcePortIds;
+    /** The ID of the sink audio port ('AudioPort.id'). */
+    int sinkPortId;
+    /** If set, only one source can be active, mixing is not supported. */
+    boolean isExclusive;
+}
diff --git a/media/libaudioclient/aidl/android/media/DeviceConnectedState.aidl b/media/libaudioclient/aidl/android/media/DeviceConnectedState.aidl
new file mode 100644
index 0000000..e401384
--- /dev/null
+++ b/media/libaudioclient/aidl/android/media/DeviceConnectedState.aidl
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2023 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}
+ */
+@Backing(type="int")
+enum DeviceConnectedState {
+    CONNECTED = 0,
+    DISCONNECTED = 1,
+    PREPARE_TO_DISCONNECT = 2,
+}
diff --git a/media/libaudioclient/aidl/android/media/IAudioFlingerService.aidl b/media/libaudioclient/aidl/android/media/IAudioFlingerService.aidl
index e676d89..b722d14 100644
--- a/media/libaudioclient/aidl/android/media/IAudioFlingerService.aidl
+++ b/media/libaudioclient/aidl/android/media/IAudioFlingerService.aidl
@@ -27,6 +27,7 @@
 import android.media.CreateRecordResponse;
 import android.media.CreateTrackRequest;
 import android.media.CreateTrackResponse;
+import android.media.DeviceConnectedState;
 import android.media.OpenInputRequest;
 import android.media.OpenInputResponse;
 import android.media.OpenOutputRequest;
@@ -227,7 +228,7 @@
 
     int getAAudioHardwareBurstMinUsec();
 
-    void setDeviceConnectedState(in AudioPortFw devicePort, boolean connected);
+    void setDeviceConnectedState(in AudioPortFw devicePort, DeviceConnectedState state);
 
     // Used for tests only. Requires AIDL HAL to work.
     void setSimulateDeviceConnections(boolean enabled);
diff --git a/media/libaudioclient/aidl/android/media/SurroundSoundConfig.aidl b/media/libaudioclient/aidl/android/media/SurroundSoundConfig.aidl
new file mode 100644
index 0000000..f83fdef
--- /dev/null
+++ b/media/libaudioclient/aidl/android/media/SurroundSoundConfig.aidl
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2023 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.AudioFormatDescription;
+
+/**
+ * TODO(b/280077672): This is a temporary copy of the stable
+ * android.hardware.audio.core.SurroundSoundConfig parcelable.
+ * Interfaces from the Core API do not support the CPP backend. This copy will
+ * be removed either by moving the AudioRoute from core to a.m.a.common or by
+ * switching the framework internal interfaces to the NDK backend.
+ * {@hide}
+ */
+parcelable SurroundSoundConfig {
+    parcelable SurroundFormatFamily {
+        /**
+         * A primaryFormat shall get an entry in the Surround Settings dialog on TV
+         * devices. There must be a corresponding Java ENCODING_... constant
+         * defined in AudioFormat.java, and a display name defined in
+         * AudioFormat.toDisplayName.
+         */
+        AudioFormatDescription primaryFormat;
+        /**
+         * List of formats that shall be equivalent to the primaryFormat from the
+         * users' point of view and don't need a dedicated Surround Settings
+         * dialog entry.
+         */
+        AudioFormatDescription[] subFormats;
+    }
+    SurroundFormatFamily[] formatFamilies;
+}
diff --git a/media/libaudioclient/include/media/IAudioFlinger.h b/media/libaudioclient/include/media/IAudioFlinger.h
index b1491da..c43769b 100644
--- a/media/libaudioclient/include/media/IAudioFlinger.h
+++ b/media/libaudioclient/include/media/IAudioFlinger.h
@@ -358,7 +358,8 @@
 
     virtual int32_t getAAudioHardwareBurstMinUsec() = 0;
 
-    virtual status_t setDeviceConnectedState(const struct audio_port_v7 *port, bool connected) = 0;
+    virtual status_t setDeviceConnectedState(const struct audio_port_v7 *port,
+                                             media::DeviceConnectedState state) = 0;
 
     virtual status_t setSimulateDeviceConnections(bool enabled) = 0;
 
@@ -474,7 +475,8 @@
             std::vector<media::audio::common::AudioMMapPolicyInfo> *policyInfos) override;
     int32_t getAAudioMixerBurstCount() override;
     int32_t getAAudioHardwareBurstMinUsec() override;
-    status_t setDeviceConnectedState(const struct audio_port_v7 *port, bool connected) override;
+    status_t setDeviceConnectedState(const struct audio_port_v7 *port,
+                                     media::DeviceConnectedState state) override;
     status_t setSimulateDeviceConnections(bool enabled) override;
     status_t setRequestedLatencyMode(audio_io_handle_t output,
             audio_latency_mode_t mode) override;
@@ -701,7 +703,8 @@
             std::vector<media::audio::common::AudioMMapPolicyInfo> *_aidl_return) override;
     Status getAAudioMixerBurstCount(int32_t* _aidl_return) override;
     Status getAAudioHardwareBurstMinUsec(int32_t* _aidl_return) override;
-    Status setDeviceConnectedState(const media::AudioPortFw& port, bool connected) override;
+    Status setDeviceConnectedState(const media::AudioPortFw& port,
+                                   media::DeviceConnectedState state) override;
     Status setSimulateDeviceConnections(bool enabled) override;
     Status setRequestedLatencyMode(
             int output, media::audio::common::AudioLatencyMode mode) override;
diff --git a/media/libaudiohal/Android.bp b/media/libaudiohal/Android.bp
index 1dbcb86..3c05b0b 100644
--- a/media/libaudiohal/Android.bp
+++ b/media/libaudiohal/Android.bp
@@ -74,6 +74,12 @@
 cc_library_headers {
     name: "libaudiohal_headers",
 
+    header_libs: [
+        "libeffectsconfig_headers",
+    ],
+
+    export_header_lib_headers: ["libeffectsconfig_headers"],
+
     export_include_dirs: ["include"],
 }
 
diff --git a/media/libaudiohal/impl/Android.bp b/media/libaudiohal/impl/Android.bp
index 1e3d45f..30a4bf9 100644
--- a/media/libaudiohal/impl/Android.bp
+++ b/media/libaudiohal/impl/Android.bp
@@ -35,6 +35,7 @@
         "android.hidl.allocator@1.0",
         "android.hidl.memory@1.0",
         "libaudiohal_deathhandler",
+        "libeffectsconfig",
         "libhidlbase",
         "libhidlmemory",
     ],
@@ -281,15 +282,17 @@
         "android.hardware.common.fmq-V1-ndk",
     ],
     shared_libs: [
-        "libbinder_ndk",
         "libaudio_aidl_conversion_common_cpp",
         "libaudio_aidl_conversion_common_ndk",
+        "libaudio_aidl_conversion_common_ndk_cpp",
         "libaudio_aidl_conversion_core_ndk",
         "libaudio_aidl_conversion_effect_ndk",
         "libaudioaidlcommon",
+        "libbinder_ndk",
     ],
     header_libs: [
         "libaudio_system_headers",
+        "libeffectsconfig_headers",
     ],
     cflags: [
         "-Wall",
diff --git a/media/libaudiohal/impl/DeviceHalAidl.cpp b/media/libaudiohal/impl/DeviceHalAidl.cpp
index a8a48ae..e452a35 100644
--- a/media/libaudiohal/impl/DeviceHalAidl.cpp
+++ b/media/libaudiohal/impl/DeviceHalAidl.cpp
@@ -23,10 +23,9 @@
 #include <aidl/android/hardware/audio/core/BnStreamCallback.h>
 #include <aidl/android/hardware/audio/core/BnStreamOutEventCallback.h>
 #include <aidl/android/hardware/audio/core/StreamDescriptor.h>
-#include <android/binder_enums.h>
-#include <binder/Enums.h>
 #include <error/expected_utils.h>
 #include <media/AidlConversionCppNdk.h>
+#include <media/AidlConversionNdkCpp.h>
 #include <media/AidlConversionUtil.h>
 #include <mediautils/TimeCheck.h>
 #include <Utils.h>
@@ -96,77 +95,35 @@
     portConfig->format = config.base.format;
 }
 
-template<typename OutEnum, typename OutEnumRange, typename InEnum>
-ConversionResult<OutEnum> convertEnum(const OutEnumRange& range, InEnum e) {
-    using InIntType = std::underlying_type_t<InEnum>;
-    static_assert(std::is_same_v<InIntType, std::underlying_type_t<OutEnum>>);
-
-    InIntType inEnumIndex = static_cast<InIntType>(e);
-    OutEnum outEnum = static_cast<OutEnum>(inEnumIndex);
-    if (std::find(range.begin(), range.end(), outEnum) == range.end()) {
-        return ::android::base::unexpected(BAD_VALUE);
-    }
-    return outEnum;
-}
-
-template<typename NdkEnum, typename CppEnum>
-ConversionResult<NdkEnum> cpp2ndk_Enum(CppEnum e) {
-    return convertEnum<NdkEnum>(::ndk::enum_range<NdkEnum>(), e);
-}
-
-template<typename CppEnum, typename NdkEnum>
-ConversionResult<CppEnum> ndk2cpp_Enum(NdkEnum e) {
-    return convertEnum<CppEnum>(::android::enum_range<CppEnum>(), e);
-}
-
-ConversionResult<android::media::audio::common::AudioDeviceAddress>
-ndk2cpp_AudioDeviceAddress(const AudioDeviceAddress& ndk) {
-    using CppTag = android::media::audio::common::AudioDeviceAddress::Tag;
-    using NdkTag = AudioDeviceAddress::Tag;
-
-    CppTag cppTag = VALUE_OR_RETURN(ndk2cpp_Enum<CppTag>(ndk.getTag()));
-
-    switch (cppTag) {
-        case CppTag::id:
-            return android::media::audio::common::AudioDeviceAddress::make<CppTag::id>(
-                    ndk.get<NdkTag::id>());
-        case CppTag::mac:
-            return android::media::audio::common::AudioDeviceAddress::make<CppTag::mac>(
-                    ndk.get<NdkTag::mac>());
-        case CppTag::ipv4:
-            return android::media::audio::common::AudioDeviceAddress::make<CppTag::ipv4>(
-                    ndk.get<NdkTag::ipv4>());
-        case CppTag::ipv6:
-            return android::media::audio::common::AudioDeviceAddress::make<CppTag::ipv6>(
-                    ndk.get<NdkTag::ipv6>());
-        case CppTag::alsa:
-            return android::media::audio::common::AudioDeviceAddress::make<CppTag::alsa>(
-                    ndk.get<NdkTag::alsa>());
-    }
-
-    return ::android::base::unexpected(BAD_VALUE);
-}
-
-ConversionResult<media::audio::common::AudioDevice> ndk2cpp_AudioDevice(const AudioDevice& ndk) {
-    media::audio::common::AudioDevice cpp;
-    cpp.type.type = VALUE_OR_RETURN(
-            ndk2cpp_Enum<media::audio::common::AudioDeviceType>(ndk.type.type));
-    cpp.type.connection = ndk.type.connection;
-    cpp.address = VALUE_OR_RETURN(ndk2cpp_AudioDeviceAddress(ndk.address));
-    return cpp;
-}
-
-ConversionResult<media::audio::common::AudioMMapPolicyInfo>
-ndk2cpp_AudioMMapPolicyInfo(const AudioMMapPolicyInfo& ndk) {
-    media::audio::common::AudioMMapPolicyInfo cpp;
-    cpp.device = VALUE_OR_RETURN(ndk2cpp_AudioDevice(ndk.device));
-    cpp.mmapPolicy = VALUE_OR_RETURN(
-            ndk2cpp_Enum<media::audio::common::AudioMMapPolicy>(ndk.mmapPolicy));
+// Note: these converters are for types defined in different AIDL files. Although these
+// AIDL files are copies of each other, however formally these are different types
+// thus we don't use a conversion via a parcelable.
+ConversionResult<media::AudioRoute> ndk2cpp_AudioRoute(const AudioRoute& ndk) {
+    media::AudioRoute cpp;
+    cpp.sourcePortIds.insert(
+            cpp.sourcePortIds.end(), ndk.sourcePortIds.begin(), ndk.sourcePortIds.end());
+    cpp.sinkPortId = ndk.sinkPortId;
+    cpp.isExclusive = ndk.isExclusive;
     return cpp;
 }
 
 }  // namespace
 
+status_t DeviceHalAidl::getAudioPorts(std::vector<media::audio::common::AudioPort> *ports) {
+    auto convertAudioPortFromMap = [](const Ports::value_type& pair) {
+        return ndk2cpp_AudioPort(pair.second);
+    };
+    return ::aidl::android::convertRange(mPorts.begin(), mPorts.end(), ports->begin(),
+            convertAudioPortFromMap);
+}
+
+status_t DeviceHalAidl::getAudioRoutes(std::vector<media::AudioRoute> *routes) {
+    *routes = VALUE_OR_RETURN_STATUS(
+            ::aidl::android::convertContainer<std::vector<media::AudioRoute>>(
+                    mRoutes, ndk2cpp_AudioRoute));
+    return OK;
+}
+
 status_t DeviceHalAidl::getSupportedDevices(uint32_t*) {
     // Obsolete.
     return INVALID_OPERATION;
@@ -176,8 +133,7 @@
     TIME_CHECK();
     if (mModule == nullptr) return NO_INIT;
     std::vector<AudioPort> ports;
-    RETURN_STATUS_IF_ERROR(
-            statusTFromBinderStatus(mModule->getAudioPorts(&ports)));
+    RETURN_STATUS_IF_ERROR(statusTFromBinderStatus(mModule->getAudioPorts(&ports)));
     ALOGW_IF(ports.empty(), "%s: module %s returned an empty list of audio ports",
             __func__, mInstance.c_str());
     std::transform(ports.begin(), ports.end(), std::inserter(mPorts, mPorts.end()),
@@ -204,6 +160,9 @@
     std::transform(portConfigs.begin(), portConfigs.end(),
             std::inserter(mPortConfigs, mPortConfigs.end()),
             [](const auto& p) { return std::make_pair(p.id, p); });
+    std::transform(mPortConfigs.begin(), mPortConfigs.end(),
+            std::inserter(mInitialPortConfigIds, mInitialPortConfigIds.end()),
+            [](const auto& pcPair) { return pcPair.first; });
     std::vector<AudioPatch> patches;
     RETURN_STATUS_IF_ERROR(
             statusTFromBinderStatus(mModule->getAudioPatches(&patches)));  // OK if empty
@@ -357,12 +316,14 @@
             this, getClassName().c_str(), __func__, aidlHandle, aidlDevice.toString().c_str(),
             aidlFlags.toString().c_str(), toString(aidlSource).c_str(),
             aidlConfig->toString().c_str(), mixPortConfig->toString().c_str());
+    resetUnusedPatchesAndPortConfigs();
     const bool isInput = aidlFlags.getTag() == AudioIoFlags::Tag::input;
     // Find / create AudioPortConfigs for the device port and the mix port,
     // then find / create a patch between them, and open a stream on the mix port.
     AudioPortConfig devicePortConfig;
     bool created = false;
-    RETURN_STATUS_IF_ERROR(findOrCreatePortConfig(aidlDevice, &devicePortConfig, &created));
+    RETURN_STATUS_IF_ERROR(findOrCreatePortConfig(aidlDevice, aidlConfig,
+                                                  &devicePortConfig, &created));
     if (created) {
         cleanups->emplace_front(this, &DeviceHalAidl::resetPortConfig, devicePortConfig.id);
     }
@@ -888,8 +849,8 @@
         media::audio::common::AudioMMapPolicyType policyType,
         std::vector<media::audio::common::AudioMMapPolicyInfo>* policyInfos) {
     TIME_CHECK();
-    AudioMMapPolicyType mmapPolicyType =
-            VALUE_OR_RETURN_STATUS(cpp2ndk_Enum<AudioMMapPolicyType>(policyType));
+    AudioMMapPolicyType mmapPolicyType = VALUE_OR_RETURN_STATUS(
+            cpp2ndk_AudioMMapPolicyType(policyType));
 
     std::vector<AudioMMapPolicyInfo> mmapPolicyInfos;
 
@@ -946,12 +907,33 @@
     return statusTFromBinderStatus(mModule->supportsVariableLatency(supports));
 }
 
+
+status_t DeviceHalAidl::prepareToDisconnectExternalDevice(const struct audio_port_v7* port) {
+    // There is not AIDL API defined for `prepareToDisconnectExternalDevice`.
+    // Call `setConnectedState` instead.
+    // TODO(b/279824103): call prepareToDisconnectExternalDevice when it is added.
+    const status_t status = setConnectedState(port, false /*connected*/);
+    if (status == NO_ERROR) {
+        mDeviceDisconnectionNotified.insert(port->id);
+    }
+    return status;
+}
+
 status_t DeviceHalAidl::setConnectedState(const struct audio_port_v7 *port, bool connected) {
     TIME_CHECK();
     if (!mModule) return NO_INIT;
     if (port == nullptr) {
         return BAD_VALUE;
     }
+    if (!connected && mDeviceDisconnectionNotified.erase(port->id) > 0) {
+        // For device disconnection, APM will first call `prepareToDisconnectExternalDevice`
+        // and then call `setConnectedState`. However, there is no API for
+        // `prepareToDisconnectExternalDevice` yet. In that case, `setConnectedState` will be
+        // called when calling `prepareToDisconnectExternalDevice`. Do not call to the HAL if
+        // previous call is successful. Also remove the cache here to avoid a large cache after
+        // a long run.
+        return NO_ERROR;
+    }
     bool isInput = VALUE_OR_RETURN_STATUS(::aidl::android::portDirection(port->role, port->type)) ==
             ::aidl::android::AudioPortDirection::INPUT;
     AudioPort aidlPort = VALUE_OR_RETURN_STATUS(
@@ -1028,8 +1010,8 @@
     return p.ext.get<AudioPortExt::Tag::device>().device == device;
 }
 
-status_t DeviceHalAidl::createPortConfig(
-        const AudioPortConfig& requestedPortConfig, PortConfigs::iterator* result) {
+status_t DeviceHalAidl::createOrUpdatePortConfig(
+        const AudioPortConfig& requestedPortConfig, PortConfigs::iterator* result, bool* created) {
     TIME_CHECK();
     AudioPortConfig appliedPortConfig;
     bool applied = false;
@@ -1044,11 +1026,17 @@
             return NO_INIT;
         }
     }
-    auto id = appliedPortConfig.id;
-    auto [it, inserted] = mPortConfigs.emplace(std::move(id), std::move(appliedPortConfig));
-    LOG_ALWAYS_FATAL_IF(!inserted, "%s: port config with id %d already exists",
-            __func__, it->first);
+
+    int32_t id = appliedPortConfig.id;
+    if (requestedPortConfig.id != 0 && requestedPortConfig.id != id) {
+        LOG_ALWAYS_FATAL("%s: requested port config id %d changed to %d", __func__,
+                requestedPortConfig.id, id);
+    }
+
+    auto [it, inserted] = mPortConfigs.insert_or_assign(std::move(id),
+            std::move(appliedPortConfig));
     *result = it;
+    *created = inserted;
     return OK;
 }
 
@@ -1083,7 +1071,7 @@
     return OK;
 }
 
-status_t DeviceHalAidl::findOrCreatePortConfig(const AudioDevice& device,
+status_t DeviceHalAidl::findOrCreatePortConfig(const AudioDevice& device, const AudioConfig* config,
         AudioPortConfig* portConfig, bool* created) {
     auto portConfigIt = findPortConfig(device);
     if (portConfigIt == mPortConfigs.end()) {
@@ -1095,8 +1083,11 @@
         }
         AudioPortConfig requestedPortConfig;
         requestedPortConfig.portId = portsIt->first;
-        RETURN_STATUS_IF_ERROR(createPortConfig(requestedPortConfig, &portConfigIt));
-        *created = true;
+        if (config != nullptr) {
+            setPortConfigFromConfig(&requestedPortConfig, *config);
+        }
+        RETURN_STATUS_IF_ERROR(createOrUpdatePortConfig(requestedPortConfig, &portConfigIt,
+                created));
     } else {
         *created = false;
     }
@@ -1146,15 +1137,29 @@
             requestedPortConfig.ext.get<AudioPortExt::Tag::mix>().usecase =
                     AudioPortMixExtUseCase::make<AudioPortMixExtUseCase::Tag::source>(source);
         }
-        RETURN_STATUS_IF_ERROR(createPortConfig(requestedPortConfig, &portConfigIt));
-        *created = true;
+        RETURN_STATUS_IF_ERROR(createOrUpdatePortConfig(requestedPortConfig, &portConfigIt,
+                created));
     } else if (!flags.has_value()) {
         ALOGW("%s: mix port config for %s, handle %d not found in the module %s, "
                 "and was not created as flags are not specified",
                 __func__, config.toString().c_str(), ioHandle, mInstance.c_str());
         return BAD_VALUE;
     } else {
-        *created = false;
+        AudioPortConfig requestedPortConfig = portConfigIt->second;
+        if (requestedPortConfig.ext.getTag() == AudioPortExt::Tag::mix) {
+            AudioPortMixExt& mixExt = requestedPortConfig.ext.get<AudioPortExt::Tag::mix>();
+            if (mixExt.usecase.getTag() == AudioPortMixExtUseCase::Tag::source &&
+                    source != AudioSource::SYS_RESERVED_INVALID) {
+                mixExt.usecase.get<AudioPortMixExtUseCase::Tag::source>() = source;
+            }
+        }
+
+        if (requestedPortConfig != portConfigIt->second) {
+            RETURN_STATUS_IF_ERROR(createOrUpdatePortConfig(requestedPortConfig, &portConfigIt,
+                    created));
+        } else {
+            *created = false;
+        }
     }
     *portConfig = portConfigIt->second;
     return OK;
@@ -1183,7 +1188,8 @@
                 portConfig, created);
     } else if (requestedPortConfig.ext.getTag() == Tag::device) {
         return findOrCreatePortConfig(
-                requestedPortConfig.ext.get<Tag::device>().device, portConfig, created);
+                requestedPortConfig.ext.get<Tag::device>().device, nullptr /*config*/,
+                portConfig, created);
     }
     ALOGW("%s: unsupported audio port config: %s",
             __func__, requestedPortConfig.toString().c_str());
@@ -1212,7 +1218,6 @@
             [&](const auto& pair) { return audioDeviceMatches(device, pair.second); });
 }
 
-
 DeviceHalAidl::Ports::iterator DeviceHalAidl::findPort(
             const AudioConfig& config, const AudioIoFlags& flags,
             const std::set<int32_t>& destinationPortIds) {
@@ -1225,10 +1230,20 @@
                         std::find(prof.sampleRates.begin(), prof.sampleRates.end(),
                                 config.base.sampleRate) != prof.sampleRates.end());
     };
+    static const std::vector<AudioOutputFlags> kOptionalOutputFlags{AudioOutputFlags::BIT_PERFECT};
+    int optionalFlags = 0;
+    auto flagMatches = [&flags, &optionalFlags](const AudioIoFlags& portFlags) {
+        // Ports should be able to match if the optional flags are not requested.
+        return portFlags == flags ||
+               (portFlags.getTag() == AudioIoFlags::Tag::output &&
+                        AudioIoFlags::make<AudioIoFlags::Tag::output>(
+                                portFlags.get<AudioIoFlags::Tag::output>() &
+                                        ~optionalFlags) == flags);
+    };
     auto matcher = [&](const auto& pair) {
         const auto& p = pair.second;
         return p.ext.getTag() == AudioPortExt::Tag::mix &&
-                p.flags == flags &&
+                flagMatches(p.flags) &&
                 (destinationPortIds.empty() ||
                         std::any_of(destinationPortIds.begin(), destinationPortIds.end(),
                                 [&](const int32_t destId) { return mRoutingMatrix.count(
@@ -1236,7 +1251,24 @@
                 (p.profiles.empty() ||
                         std::find_if(p.profiles.begin(), p.profiles.end(), belongsToProfile) !=
                         p.profiles.end()); };
-    return std::find_if(mPorts.begin(), mPorts.end(), matcher);
+    auto result = std::find_if(mPorts.begin(), mPorts.end(), matcher);
+    if (result == mPorts.end() && flags.getTag() == AudioIoFlags::Tag::output) {
+        auto optionalOutputFlagsIt = kOptionalOutputFlags.begin();
+        while (result == mPorts.end() && optionalOutputFlagsIt != kOptionalOutputFlags.end()) {
+            if (isBitPositionFlagSet(
+                        flags.get<AudioIoFlags::Tag::output>(), *optionalOutputFlagsIt)) {
+                // If the flag is set by the request, it must be matched.
+                ++optionalOutputFlagsIt;
+                continue;
+            }
+            optionalFlags |= makeBitPositionFlagMask(*optionalOutputFlagsIt++);
+            result = std::find_if(mPorts.begin(), mPorts.end(), matcher);
+            ALOGI("%s: port for config %s, flags %s was not found in the module %s, "
+                  "retried with excluding optional flags %#x", __func__, config.toString().c_str(),
+                    flags.toString().c_str(), mInstance.c_str(), optionalFlags);
+        }
+    }
+    return result;
 }
 
 DeviceHalAidl::PortConfigs::iterator DeviceHalAidl::findPortConfig(const AudioDevice& device) {
@@ -1318,18 +1350,20 @@
         for (int32_t id : p.second.sourcePortConfigIds) portConfigIds.erase(id);
         for (int32_t id : p.second.sinkPortConfigIds) portConfigIds.erase(id);
     }
+    for (int32_t id : mInitialPortConfigIds) {
+        portConfigIds.erase(id);
+    }
     for (int32_t id : portConfigIds) resetPortConfig(id);
 }
 
 status_t DeviceHalAidl::updateRoutes() {
     TIME_CHECK();
-    std::vector<AudioRoute> routes;
     RETURN_STATUS_IF_ERROR(
-            statusTFromBinderStatus(mModule->getAudioRoutes(&routes)));
-    ALOGW_IF(routes.empty(), "%s: module %s returned an empty list of audio routes",
+            statusTFromBinderStatus(mModule->getAudioRoutes(&mRoutes)));
+    ALOGW_IF(mRoutes.empty(), "%s: module %s returned an empty list of audio routes",
             __func__, mInstance.c_str());
     mRoutingMatrix.clear();
-    for (const auto& r : routes) {
+    for (const auto& r : mRoutes) {
         for (auto portId : r.sourcePortIds) {
             mRoutingMatrix.emplace(r.sinkPortId, portId);
             mRoutingMatrix.emplace(portId, r.sinkPortId);
diff --git a/media/libaudiohal/impl/DeviceHalAidl.h b/media/libaudiohal/impl/DeviceHalAidl.h
index fd0cd54..ea3e125 100644
--- a/media/libaudiohal/impl/DeviceHalAidl.h
+++ b/media/libaudiohal/impl/DeviceHalAidl.h
@@ -68,6 +68,10 @@
 class DeviceHalAidl : public DeviceHalInterface, public ConversionHelperAidl,
                       public CallbackBroker, public MicrophoneInfoProvider {
   public:
+    status_t getAudioPorts(std::vector<media::audio::common::AudioPort> *ports) override;
+
+    status_t getAudioRoutes(std::vector<media::AudioRoute> *routes) override;
+
     // Sets the value of 'devices' to a bitmask of 1 or more values of audio_devices_t.
     status_t getSupportedDevices(uint32_t *devices) override;
 
@@ -157,6 +161,8 @@
 
     int32_t supportsBluetoothVariableLatency(bool* supports __unused) override;
 
+    status_t prepareToDisconnectExternalDevice(const struct audio_port_v7 *port) override;
+
     status_t setConnectedState(const struct audio_port_v7 *port, bool connected) override;
 
     status_t setSimulateDeviceConnections(bool enabled) override;
@@ -181,6 +187,7 @@
     using PortConfigs = std::map<int32_t /*port config ID*/,
             ::aidl::android::media::audio::common::AudioPortConfig>;
     using Ports = std::map<int32_t /*port ID*/, ::aidl::android::media::audio::common::AudioPort>;
+    using Routes = std::vector<::aidl::android::hardware::audio::core::AudioRoute>;
     // Answers the question "whether portID 'first' is reachable from portID 'second'?"
     // It's not a map because both portIDs are known. The matrix is symmetric.
     using RoutingMatrix = std::set<std::pair<int32_t, int32_t>>;
@@ -199,9 +206,9 @@
             const ::aidl::android::media::audio::common::AudioPort& p);
     bool audioDeviceMatches(const ::aidl::android::media::audio::common::AudioDevice& device,
             const ::aidl::android::media::audio::common::AudioPortConfig& p);
-    status_t createPortConfig(
+    status_t createOrUpdatePortConfig(
             const ::aidl::android::media::audio::common::AudioPortConfig& requestedPortConfig,
-            PortConfigs::iterator* result);
+            PortConfigs::iterator* result, bool *created);
     status_t findOrCreatePatch(
         const std::set<int32_t>& sourcePortConfigIds,
         const std::set<int32_t>& sinkPortConfigIds,
@@ -211,6 +218,7 @@
         ::aidl::android::hardware::audio::core::AudioPatch* patch, bool* created);
     status_t findOrCreatePortConfig(
             const ::aidl::android::media::audio::common::AudioDevice& device,
+            const ::aidl::android::media::audio::common::AudioConfig* config,
             ::aidl::android::media::audio::common::AudioPortConfig* portConfig,
             bool* created);
     status_t findOrCreatePortConfig(
@@ -278,12 +286,15 @@
     int32_t mDefaultInputPortId = -1;
     int32_t mDefaultOutputPortId = -1;
     PortConfigs mPortConfigs;
+    std::set<int32_t> mInitialPortConfigIds;
     Patches mPatches;
+    Routes mRoutes;
     RoutingMatrix mRoutingMatrix;
     Streams mStreams;
     Microphones mMicrophones;
     std::mutex mLock;
     std::map<void*, Callbacks> mCallbacks GUARDED_BY(mLock);
+    std::set<audio_port_handle_t> mDeviceDisconnectionNotified;
 };
 
 } // namespace android
diff --git a/media/libaudiohal/impl/DeviceHalHidl.cpp b/media/libaudiohal/impl/DeviceHalHidl.cpp
index 12acebd..ad9e182 100644
--- a/media/libaudiohal/impl/DeviceHalHidl.cpp
+++ b/media/libaudiohal/impl/DeviceHalHidl.cpp
@@ -79,6 +79,15 @@
     }
 }
 
+status_t DeviceHalHidl::getAudioPorts(
+        std::vector<media::audio::common::AudioPort> *ports __unused) {
+    return INVALID_OPERATION;
+}
+
+status_t DeviceHalHidl::getAudioRoutes(std::vector<media::AudioRoute> *routes __unused) {
+    return INVALID_OPERATION;
+}
+
 status_t DeviceHalHidl::getSupportedDevices(uint32_t*) {
     // Obsolete.
     return INVALID_OPERATION;
@@ -405,6 +414,7 @@
 
 template <typename HalPort>
 status_t DeviceHalHidl::getAudioPortImpl(HalPort *port) {
+    using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::AudioPort;
     if (mDevice == 0) return NO_INIT;
     AudioPort hidlPort;
     HidlUtils::audioPortFromHal(*port, &hidlPort);
@@ -447,6 +457,7 @@
 }
 
 status_t DeviceHalHidl::setAudioPortConfig(const struct audio_port_config *config) {
+    using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::AudioPortConfig;
     TIME_CHECK();
     if (mDevice == 0) return NO_INIT;
     AudioPortConfig hidlConfig;
@@ -510,9 +521,29 @@
 }
 #endif
 
+status_t DeviceHalHidl::prepareToDisconnectExternalDevice(const struct audio_port_v7* port) {
+    // For HIDL HAL, there is not API to call notify the HAL to prepare for device connected
+    // state changed. Call `setConnectedState` directly.
+    const status_t status = setConnectedState(port, false /*connected*/);
+    if (status == NO_ERROR) {
+        // Cache the port id so that it won't disconnect twice.
+        mDeviceDisconnectionNotified.insert(port->id);
+    }
+    return status;
+}
+
 status_t DeviceHalHidl::setConnectedState(const struct audio_port_v7 *port, bool connected) {
+    using ::android::hardware::audio::common::COMMON_TYPES_CPP_VERSION::AudioPort;
     TIME_CHECK();
     if (mDevice == 0) return NO_INIT;
+    if (!connected && mDeviceDisconnectionNotified.erase(port->id) > 0) {
+        // For device disconnection, APM will first call `prepareToDisconnectExternalDevice` and
+        // then call `setConnectedState`. However, in HIDL HAL, there is no API for
+        // `prepareToDisconnectExternalDevice`. In that case, HIDL HAL will call `setConnectedState`
+        // when calling `prepareToDisconnectExternalDevice`. Do not call to the HAL if previous
+        // call is successful. Also remove the cache here to avoid a large cache after a long run.
+        return NO_ERROR;
+    }
 #if MAJOR_VERSION == 7 && MINOR_VERSION == 1
     if (supportsSetConnectedState7_1) {
         AudioPort hidlPort;
diff --git a/media/libaudiohal/impl/DeviceHalHidl.h b/media/libaudiohal/impl/DeviceHalHidl.h
index 132aad7..6b6c197 100644
--- a/media/libaudiohal/impl/DeviceHalHidl.h
+++ b/media/libaudiohal/impl/DeviceHalHidl.h
@@ -29,6 +29,10 @@
 class DeviceHalHidl : public DeviceHalInterface, public CoreConversionHelperHidl
 {
   public:
+    status_t getAudioPorts(std::vector<media::audio::common::AudioPort> *ports) override;
+
+    status_t getAudioRoutes(std::vector<media::AudioRoute> *routes) override;
+
     // Sets the value of 'devices' to a bitmask of 1 or more values of audio_devices_t.
     status_t getSupportedDevices(uint32_t *devices) override;
 
@@ -135,12 +139,15 @@
 
     status_t dump(int fd, const Vector<String16>& args) override;
 
+    status_t prepareToDisconnectExternalDevice(const struct audio_port_v7* port) override;
+
   private:
     friend class DevicesFactoryHalHidl;
     sp<::android::hardware::audio::CPP_VERSION::IDevice> mDevice;
     // Null if it's not a primary device.
     sp<::android::hardware::audio::CPP_VERSION::IPrimaryDevice> mPrimaryDevice;
     bool supportsSetConnectedState7_1 = true;
+    std::set<audio_port_handle_t> mDeviceDisconnectionNotified;
 
     // Can not be constructed directly by clients.
     explicit DeviceHalHidl(const sp<::android::hardware::audio::CPP_VERSION::IDevice>& device);
diff --git a/media/libaudiohal/impl/DevicesFactoryHalAidl.cpp b/media/libaudiohal/impl/DevicesFactoryHalAidl.cpp
index 2eaaf5d..8345cd2 100644
--- a/media/libaudiohal/impl/DevicesFactoryHalAidl.cpp
+++ b/media/libaudiohal/impl/DevicesFactoryHalAidl.cpp
@@ -14,26 +14,67 @@
  * limitations under the License.
  */
 
+#include <memory>
+
 #define LOG_TAG "DevicesFactoryHalAidl"
 //#define LOG_NDEBUG 0
 
 #include <aidl/android/hardware/audio/core/IModule.h>
 #include <android/binder_manager.h>
 #include <binder/IServiceManager.h>
-#include <memory>
+#include <media/AidlConversionNdkCpp.h>
+#include <media/AidlConversionUtil.h>
 #include <utils/Log.h>
 
 #include "DeviceHalAidl.h"
 #include "DevicesFactoryHalAidl.h"
 
-using namespace ::aidl::android::hardware::audio::core;
+using aidl::android::aidl_utils::statusTFromBinderStatus;
+using aidl::android::hardware::audio::core::IConfig;
+using aidl::android::hardware::audio::core::IModule;
+using aidl::android::hardware::audio::core::SurroundSoundConfig;
+using aidl::android::media::audio::common::AudioHalEngineConfig;
 using ::android::detail::AudioHalVersionInfo;
 
 namespace android {
 
-DevicesFactoryHalAidl::DevicesFactoryHalAidl(std::shared_ptr<IConfig> iconfig)
-    : mIConfig(std::move(iconfig)) {
-    ALOG_ASSERT(iconfig != nullptr, "Provided default IConfig service is NULL");
+namespace {
+
+ConversionResult<media::SurroundSoundConfig::SurroundFormatFamily>
+ndk2cpp_SurroundSoundConfigFormatFamily(const SurroundSoundConfig::SurroundFormatFamily& ndk) {
+    media::SurroundSoundConfig::SurroundFormatFamily cpp;
+    cpp.primaryFormat = VALUE_OR_RETURN(ndk2cpp_AudioFormatDescription(ndk.primaryFormat));
+    cpp.subFormats = VALUE_OR_RETURN(::aidl::android::convertContainer<std::vector<
+            media::audio::common::AudioFormatDescription>>(ndk.subFormats,
+                    ndk2cpp_AudioFormatDescription));
+    return cpp;
+}
+
+ConversionResult<media::SurroundSoundConfig>
+ndk2cpp_SurroundSoundConfig(const SurroundSoundConfig& ndk) {
+    media::SurroundSoundConfig cpp;
+    cpp.formatFamilies = VALUE_OR_RETURN(::aidl::android::convertContainer<std::vector<
+            media::SurroundSoundConfig::SurroundFormatFamily>>(ndk.formatFamilies,
+                    ndk2cpp_SurroundSoundConfigFormatFamily));
+    return cpp;
+}
+
+}  // namespace
+
+DevicesFactoryHalAidl::DevicesFactoryHalAidl(std::shared_ptr<IConfig> config)
+    : mConfig(std::move(config)) {
+}
+
+status_t DevicesFactoryHalAidl::getDeviceNames(std::vector<std::string> *names) {
+    if (names == nullptr) {
+        return BAD_VALUE;
+    }
+    AServiceManager_forEachDeclaredInstance(IModule::descriptor, static_cast<void*>(names),
+            [](const char* instance, void* context) {
+                if (strcmp(instance, "default") == 0) instance = "primary";
+                static_cast<decltype(names)>(context)->push_back(instance);
+            });
+    return OK;
 }
 
 // Opens a device with the specified name. To close the device, it is
@@ -43,19 +84,22 @@
         return BAD_VALUE;
     }
 
+    // FIXME: Remove this call and the check for the supported module names
+    // after implementing retrieval of module names on the framework side.
+    // Currently it is still using the legacy XML config.
+    std::vector<std::string> deviceNames;
+    if (status_t status = getDeviceNames(&deviceNames); status != OK) {
+        return status;
+    }
     std::shared_ptr<IModule> service;
-    // FIXME: Normally we will list available HAL modules and connect to them,
-    // however currently we still get the list of module names from the config.
-    // Since the example service does not have all modules, the SM will wait
-    // for the missing ones forever.
-    if (strcmp(name, "primary") == 0 || strcmp(name, "r_submix") == 0 || strcmp(name, "usb") == 0) {
+    if (std::find(deviceNames.begin(), deviceNames.end(), name) != deviceNames.end()) {
         if (strcmp(name, "primary") == 0) name = "default";
         auto serviceName = std::string(IModule::descriptor) + "/" + name;
         service = IModule::fromBinder(
                 ndk::SpAIBinder(AServiceManager_waitForService(serviceName.c_str())));
         ALOGE_IF(service == nullptr, "%s fromBinder %s failed", __func__, serviceName.c_str());
     }
-    // If the service is a nullptr, the device will not be really functional,
+    // If the service is a nullptr, the device object will not be really functional,
     // but will not crash either.
     *device = sp<DeviceHalAidl>::make(name, service);
     return OK;
@@ -97,18 +141,28 @@
 
 AudioHalVersionInfo DevicesFactoryHalAidl::getHalVersion() const {
     int32_t versionNumber = 0;
-    if (mIConfig != 0) {
-        if (ndk::ScopedAStatus status = mIConfig->getInterfaceVersion(&versionNumber);
-                !status.isOk()) {
-            ALOGE("%s getInterfaceVersion failed: %s", __func__, status.getDescription().c_str());
-        }
-    } else {
-        ALOGW("%s no IConfig instance", __func__);
+    if (ndk::ScopedAStatus status = mConfig->getInterfaceVersion(&versionNumber); !status.isOk()) {
+        ALOGE("%s getInterfaceVersion failed: %s", __func__, status.getDescription().c_str());
     }
     // AIDL does not have minor version, fill 0 for all versions
     return AudioHalVersionInfo(AudioHalVersionInfo::Type::AIDL, versionNumber);
 }
 
+status_t DevicesFactoryHalAidl::getSurroundSoundConfig(media::SurroundSoundConfig *config) {
+    SurroundSoundConfig ndkConfig;
+    RETURN_STATUS_IF_ERROR(statusTFromBinderStatus(mConfig->getSurroundSoundConfig(&ndkConfig)));
+    *config = VALUE_OR_RETURN_STATUS(ndk2cpp_SurroundSoundConfig(ndkConfig));
+    return OK;
+}
+
+status_t DevicesFactoryHalAidl::getEngineConfig(
+        media::audio::common::AudioHalEngineConfig *config) {
+    AudioHalEngineConfig ndkConfig;
+    RETURN_STATUS_IF_ERROR(statusTFromBinderStatus(mConfig->getEngineConfig(&ndkConfig)));
+    *config = VALUE_OR_RETURN_STATUS(ndk2cpp_AudioHalEngineConfig(ndkConfig));
+    return OK;
+}
+
 // Main entry-point to the shared library.
 extern "C" __attribute__((visibility("default"))) void* createIDevicesFactoryImpl() {
     auto serviceName = std::string(IConfig::descriptor) + "/default";
diff --git a/media/libaudiohal/impl/DevicesFactoryHalAidl.h b/media/libaudiohal/impl/DevicesFactoryHalAidl.h
index cb627bc..21957bc 100644
--- a/media/libaudiohal/impl/DevicesFactoryHalAidl.h
+++ b/media/libaudiohal/impl/DevicesFactoryHalAidl.h
@@ -26,7 +26,9 @@
 {
   public:
     explicit DevicesFactoryHalAidl(
-            std::shared_ptr<::aidl::android::hardware::audio::core::IConfig> iConfig);
+            std::shared_ptr<::aidl::android::hardware::audio::core::IConfig> config);
+
+    status_t getDeviceNames(std::vector<std::string> *names) override;
 
     // Opens a device with the specified name. To close the device, it is
     // necessary to release references to the returned object.
@@ -38,8 +40,12 @@
 
     android::detail::AudioHalVersionInfo getHalVersion() const override;
 
+    status_t getSurroundSoundConfig(media::SurroundSoundConfig *config) override;
+
+    status_t getEngineConfig(media::audio::common::AudioHalEngineConfig *config) override;
+
   private:
-    const std::shared_ptr<::aidl::android::hardware::audio::core::IConfig> mIConfig;
+    const std::shared_ptr<::aidl::android::hardware::audio::core::IConfig> mConfig;
     ~DevicesFactoryHalAidl() = default;
 };
 
diff --git a/media/libaudiohal/impl/DevicesFactoryHalHidl.cpp b/media/libaudiohal/impl/DevicesFactoryHalHidl.cpp
index 9f06f83..eef60b5 100644
--- a/media/libaudiohal/impl/DevicesFactoryHalHidl.cpp
+++ b/media/libaudiohal/impl/DevicesFactoryHalHidl.cpp
@@ -106,6 +106,10 @@
 }
 #endif
 
+status_t DevicesFactoryHalHidl::getDeviceNames(std::vector<std::string> *names __unused) {
+    return INVALID_OPERATION;
+}
+
 status_t DevicesFactoryHalHidl::openDevice(const char *name, sp<DeviceHalInterface> *device) {
     auto factories = copyDeviceFactories();
     if (factories.empty()) return NO_INIT;
@@ -232,6 +236,16 @@
     return AudioHalVersionInfo(AudioHalVersionInfo::Type::HIDL, MAJOR_VERSION, MINOR_VERSION);
 }
 
+status_t DevicesFactoryHalHidl::getSurroundSoundConfig(
+        media::SurroundSoundConfig *config __unused) {
+    return INVALID_OPERATION;
+}
+
+status_t DevicesFactoryHalHidl::getEngineConfig(
+        media::audio::common::AudioHalEngineConfig *config __unused) {
+    return INVALID_OPERATION;
+}
+
 // Main entry-point to the shared library.
 extern "C" __attribute__((visibility("default"))) void* createIDevicesFactoryImpl() {
     auto service = hardware::audio::CPP_VERSION::IDevicesFactory::getService();
diff --git a/media/libaudiohal/impl/DevicesFactoryHalHidl.h b/media/libaudiohal/impl/DevicesFactoryHalHidl.h
index 5294728..3285af7 100644
--- a/media/libaudiohal/impl/DevicesFactoryHalHidl.h
+++ b/media/libaudiohal/impl/DevicesFactoryHalHidl.h
@@ -37,6 +37,8 @@
     explicit DevicesFactoryHalHidl(sp<IDevicesFactory> devicesFactory);
     void onFirstRef() override;
 
+    status_t getDeviceNames(std::vector<std::string> *names) override;
+
     // Opens a device with the specified name. To close the device, it is
     // necessary to release references to the returned object.
     status_t openDevice(const char *name, sp<DeviceHalInterface> *device) override;
@@ -47,6 +49,10 @@
 
     android::detail::AudioHalVersionInfo getHalVersion() const override;
 
+    status_t getSurroundSoundConfig(media::SurroundSoundConfig *config) override;
+
+    status_t getEngineConfig(media::audio::common::AudioHalEngineConfig *config) override;
+
   private:
     friend class ServiceNotificationListener;
     void addDeviceFactory(sp<IDevicesFactory> factory, bool needToNotify);
diff --git a/media/libaudiohal/impl/EffectsFactoryHalAidl.cpp b/media/libaudiohal/impl/EffectsFactoryHalAidl.cpp
index bc05aa0..0dcb8ee 100644
--- a/media/libaudiohal/impl/EffectsFactoryHalAidl.cpp
+++ b/media/libaudiohal/impl/EffectsFactoryHalAidl.cpp
@@ -23,6 +23,7 @@
 //#define LOG_NDEBUG 0
 
 #include <error/expected_utils.h>
+#include <aidl/android/media/audio/common/AudioStreamType.h>
 #include <android/binder_manager.h>
 #include <media/AidlConversionCppNdk.h>
 #include <media/AidlConversionEffect.h>
@@ -35,11 +36,13 @@
 #include "EffectsFactoryHalAidl.h"
 
 using ::aidl::android::legacy2aidl_audio_uuid_t_AudioUuid;
-using aidl::android::aidl_utils::statusTFromBinderStatus;
-using aidl::android::hardware::audio::effect::Descriptor;
-using aidl::android::hardware::audio::effect::IFactory;
-using aidl::android::media::audio::common::AudioUuid;
-using android::detail::AudioHalVersionInfo;
+using ::aidl::android::aidl_utils::statusTFromBinderStatus;
+using ::aidl::android::hardware::audio::effect::Descriptor;
+using ::aidl::android::hardware::audio::effect::IFactory;
+using ::aidl::android::hardware::audio::effect::Processing;
+using ::aidl::android::media::audio::common::AudioUuid;
+using ::android::base::unexpected;
+using ::android::detail::AudioHalVersionInfo;
 
 namespace android {
 namespace effect {
@@ -92,7 +95,8 @@
                        [](const Descriptor& desc) { return !desc.common.id.proxy.has_value(); });
           return list;
       }()),
-      mEffectCount(mNonProxyDescList.size() + mProxyDescList.size()) {
+      mEffectCount(mNonProxyDescList.size() + mProxyDescList.size()),
+      mEffectProcessings(nullptr /* TODO: add AIDL implementation */) {
     ALOG_ASSERT(mFactory != nullptr, "Provided IEffectsFactory service is NULL");
     ALOGI("%s with %zu nonProxyEffects and %zu proxyEffects", __func__, mNonProxyDescList.size(),
           mProxyDescList.size());
@@ -269,6 +273,19 @@
     return 0 != mUuidProxyMap.count(uuid);
 }
 
+std::shared_ptr<const effectsConfig::Processings> EffectsFactoryHalAidl::getProcessings() const {
+    return mEffectProcessings;
+}
+
+::android::error::Result<size_t> EffectsFactoryHalAidl::getSkippedElements() const {
+    if (!mEffectProcessings) {
+        return ::android::base::unexpected(BAD_VALUE);
+    }
+
+    // Only return 0 for AIDL, because the AIDL interface doesn't aware of configuration file
+    return 0;
+}
+
 } // namespace effect
 
 // When a shared library is built from a static library, even explicit
diff --git a/media/libaudiohal/impl/EffectsFactoryHalAidl.h b/media/libaudiohal/impl/EffectsFactoryHalAidl.h
index debfacf..70a7012 100644
--- a/media/libaudiohal/impl/EffectsFactoryHalAidl.h
+++ b/media/libaudiohal/impl/EffectsFactoryHalAidl.h
@@ -62,6 +62,10 @@
 
     detail::AudioHalVersionInfo getHalVersion() const override;
 
+    std::shared_ptr<const effectsConfig::Processings> getProcessings() const override;
+
+    ::android::error::Result<size_t> getSkippedElements() const override;
+
   private:
     const std::shared_ptr<IFactory> mFactory;
     const detail::AudioHalVersionInfo mHalVersion;
@@ -77,6 +81,8 @@
     const std::vector<Descriptor> mNonProxyDescList;
     // total number of effects including proxy effects
     const size_t mEffectCount;
+    // Query result of pre and post processing from effect factory
+    const std::shared_ptr<const effectsConfig::Processings> mEffectProcessings;
 
     std::mutex mLock;
     uint64_t mEffectIdCounter GUARDED_BY(mLock) = 0;  // Align with HIDL (0 is INVALID_ID)
diff --git a/media/libaudiohal/impl/EffectsFactoryHalHidl.cpp b/media/libaudiohal/impl/EffectsFactoryHalHidl.cpp
index 172ebdf..210c4b5 100644
--- a/media/libaudiohal/impl/EffectsFactoryHalHidl.cpp
+++ b/media/libaudiohal/impl/EffectsFactoryHalHidl.cpp
@@ -33,10 +33,11 @@
 
 #include "android/media/AudioHalVersion.h"
 
+using ::android::base::unexpected;
 using ::android::detail::AudioHalVersionInfo;
+using ::android::hardware::Return;
 using ::android::hardware::audio::common::CPP_VERSION::implementation::UuidUtils;
 using ::android::hardware::audio::effect::CPP_VERSION::implementation::EffectUtils;
-using ::android::hardware::Return;
 
 namespace android {
 namespace effect {
@@ -78,9 +79,11 @@
 }
 
 EffectsFactoryHalHidl::EffectsFactoryHalHidl(sp<IEffectsFactory> effectsFactory)
-        : EffectConversionHelperHidl("EffectsFactory"), mCache(new EffectDescriptorCache) {
-    ALOG_ASSERT(effectsFactory != nullptr, "Provided IEffectsFactory service is NULL");
-    mEffectsFactory = std::move(effectsFactory);
+    : EffectConversionHelperHidl("EffectsFactory"),
+      mEffectsFactory(std::move(effectsFactory)),
+      mCache(new EffectDescriptorCache),
+      mParsingResult(effectsConfig::parse()) {
+    ALOG_ASSERT(mEffectsFactory != nullptr, "Provided IEffectsFactory service is NULL");
 }
 
 status_t EffectsFactoryHalHidl::queryNumberEffects(uint32_t *pNumEffects) {
@@ -228,6 +231,17 @@
     return AudioHalVersionInfo(AudioHalVersionInfo::Type::HIDL, MAJOR_VERSION, MINOR_VERSION);
 }
 
+std::shared_ptr<const effectsConfig::Processings> EffectsFactoryHalHidl::getProcessings() const {
+    return mParsingResult.parsedConfig;
+}
+
+::android::error::Result<size_t> EffectsFactoryHalHidl::getSkippedElements() const {
+    if (!mParsingResult.parsedConfig) {
+        return ::android::base::unexpected(BAD_VALUE);
+    }
+    return mParsingResult.nbSkippedElement;
+}
+
 } // namespace effect
 
 // When a shared library is built from a static library, even explicit
diff --git a/media/libaudiohal/impl/EffectsFactoryHalHidl.h b/media/libaudiohal/impl/EffectsFactoryHalHidl.h
index 9875154..4110ba3 100644
--- a/media/libaudiohal/impl/EffectsFactoryHalHidl.h
+++ b/media/libaudiohal/impl/EffectsFactoryHalHidl.h
@@ -17,6 +17,7 @@
 #pragma once
 
 #include <memory>
+#include <vector>
 
 #include PATH(android/hardware/audio/effect/FILE_VERSION/IEffectsFactory.h)
 #include <media/audiohal/EffectsFactoryHalInterface.h>
@@ -62,9 +63,19 @@
 
     android::detail::AudioHalVersionInfo getHalVersion() const override;
 
+    std::shared_ptr<const effectsConfig::Processings> getProcessings() const override;
+
+    ::android::error::Result<size_t> getSkippedElements() const override;
+
   private:
-    sp<IEffectsFactory> mEffectsFactory;
-    std::unique_ptr<EffectDescriptorCache> mCache;
+    const sp<IEffectsFactory> mEffectsFactory;
+    const std::unique_ptr<EffectDescriptorCache> mCache;
+    /**
+     * Configuration file parser result, used by getProcessings() and getConfigParseResult().
+     * This struct holds the result of parsing a configuration file. The result includes the parsed
+     * configuration data, as well as any errors that occurred during parsing.
+     */
+    const effectsConfig::ParsingResult mParsingResult;
 };
 
 } // namespace effect
diff --git a/media/libaudiohal/impl/effectsAidlConversion/AidlConversionVisualizer.cpp b/media/libaudiohal/impl/effectsAidlConversion/AidlConversionVisualizer.cpp
index 2d5af59..b4440ee 100644
--- a/media/libaudiohal/impl/effectsAidlConversion/AidlConversionVisualizer.cpp
+++ b/media/libaudiohal/impl/effectsAidlConversion/AidlConversionVisualizer.cpp
@@ -52,6 +52,7 @@
     Parameter aidlParam;
     switch (type) {
         case VISUALIZER_PARAM_CAPTURE_SIZE: {
+            mCaptureSize = value;
             aidlParam = MAKE_SPECIFIC_PARAMETER(Visualizer, visualizer, captureSamples, value);
             break;
         }
diff --git a/media/libaudiohal/include/media/audiohal/DeviceHalInterface.h b/media/libaudiohal/include/media/audiohal/DeviceHalInterface.h
index 2523ba6..b0f8656 100644
--- a/media/libaudiohal/include/media/audiohal/DeviceHalInterface.h
+++ b/media/libaudiohal/include/media/audiohal/DeviceHalInterface.h
@@ -19,6 +19,8 @@
 
 #include <android/media/audio/common/AudioMMapPolicyInfo.h>
 #include <android/media/audio/common/AudioMMapPolicyType.h>
+#include <android/media/audio/common/AudioPort.h>
+#include <android/media/AudioRoute.h>
 #include <error/Result.h>
 #include <media/audiohal/EffectHalInterface.h>
 #include <system/audio.h>
@@ -34,6 +36,10 @@
 class DeviceHalInterface : public virtual RefBase
 {
   public:
+    virtual status_t getAudioPorts(std::vector<media::audio::common::AudioPort> *ports) = 0;
+
+    virtual status_t getAudioRoutes(std::vector<media::AudioRoute> *routes) = 0;
+
     // Sets the value of 'devices' to a bitmask of 1 or more values of audio_devices_t.
     virtual status_t getSupportedDevices(uint32_t *devices) = 0;
 
@@ -141,6 +147,8 @@
 
     virtual status_t dump(int fd, const Vector<String16>& args) = 0;
 
+    virtual status_t prepareToDisconnectExternalDevice(const struct audio_port_v7* port) = 0;
+
   protected:
     // Subclasses can not be constructed directly by clients.
     DeviceHalInterface() {}
diff --git a/media/libaudiohal/include/media/audiohal/DevicesFactoryHalInterface.h b/media/libaudiohal/include/media/audiohal/DevicesFactoryHalInterface.h
index be3a723..8397e9b 100644
--- a/media/libaudiohal/include/media/audiohal/DevicesFactoryHalInterface.h
+++ b/media/libaudiohal/include/media/audiohal/DevicesFactoryHalInterface.h
@@ -16,6 +16,8 @@
 
 #pragma once
 
+#include <android/media/audio/common/AudioHalEngineConfig.h>
+#include <android/media/SurroundSoundConfig.h>
 #include <media/audiohal/DeviceHalInterface.h>
 #include <utils/Errors.h>
 #include <utils/RefBase.h>
@@ -34,6 +36,8 @@
 class DevicesFactoryHalInterface : public RefBase
 {
   public:
+    virtual status_t getDeviceNames(std::vector<std::string> *names) = 0;
+
     // Opens a device with the specified name. To close the device, it is
     // necessary to release references to the returned object.
     virtual status_t openDevice(const char *name, sp<DeviceHalInterface> *device) = 0;
@@ -46,6 +50,10 @@
 
     virtual android::detail::AudioHalVersionInfo getHalVersion() const = 0;
 
+    virtual status_t getSurroundSoundConfig(media::SurroundSoundConfig *config) = 0;
+
+    virtual status_t getEngineConfig(media::audio::common::AudioHalEngineConfig *config) = 0;
+
     static sp<DevicesFactoryHalInterface> create();
 
   protected:
diff --git a/media/libaudiohal/include/media/audiohal/EffectsFactoryHalInterface.h b/media/libaudiohal/include/media/audiohal/EffectsFactoryHalInterface.h
index d740fe9..832df18 100644
--- a/media/libaudiohal/include/media/audiohal/EffectsFactoryHalInterface.h
+++ b/media/libaudiohal/include/media/audiohal/EffectsFactoryHalInterface.h
@@ -15,8 +15,10 @@
  */
 
 #pragma once
+#include <vector>
 
 #include <media/audiohal/EffectHalInterface.h>
+#include <media/EffectsConfig.h>
 #include <system/audio_effect.h>
 #include <utils/Errors.h>
 #include <utils/RefBase.h>
@@ -33,21 +35,24 @@
     virtual status_t queryNumberEffects(uint32_t *pNumEffects) = 0;
 
     // Returns a descriptor of the next available effect.
-    virtual status_t getDescriptor(uint32_t index,
-            effect_descriptor_t *pDescriptor) = 0;
+    virtual status_t getDescriptor(uint32_t index, effect_descriptor_t* pDescriptor) = 0;
 
-    virtual status_t getDescriptor(const effect_uuid_t *pEffectUuid,
-            effect_descriptor_t *pDescriptor) = 0;
+    virtual status_t getDescriptor(const effect_uuid_t* pEffectUuid,
+                                   effect_descriptor_t* pDescriptor) = 0;
 
     virtual status_t getDescriptors(const effect_uuid_t *pEffectType,
                                     std::vector<effect_descriptor_t> *descriptors) = 0;
 
+    virtual std::shared_ptr<const effectsConfig::Processings> getProcessings() const = 0;
+
+    // status_t if parser return error, skipped elements if parsing result is OK (always 0 for AIDL)
+    virtual error::Result<size_t> getSkippedElements() const = 0;
+
     // Creates an effect engine of the specified type.
     // To release the effect engine, it is necessary to release references
     // to the returned effect object.
-    virtual status_t createEffect(const effect_uuid_t *pEffectUuid,
-            int32_t sessionId, int32_t ioId, int32_t deviceId,
-            sp<EffectHalInterface> *effect) = 0;
+    virtual status_t createEffect(const effect_uuid_t* pEffectUuid, int32_t sessionId, int32_t ioId,
+                                  int32_t deviceId, sp<EffectHalInterface>* effect) = 0;
 
     virtual status_t dumpEffects(int fd) = 0;
 
diff --git a/media/libeffects/config/Android.bp b/media/libeffects/config/Android.bp
index b02dcb6..293a9c2 100644
--- a/media/libeffects/config/Android.bp
+++ b/media/libeffects/config/Android.bp
@@ -27,8 +27,21 @@
         "libcutils",
     ],
 
-    header_libs: ["libaudio_system_headers"],
-    export_header_lib_headers: ["libaudio_system_headers"],
+    header_libs: [
+        "libaudio_system_headers",
+        "liberror_headers",
+    ],
+
+    export_header_lib_headers: [
+        "libaudio_system_headers",
+        "liberror_headers",
+    ],
+
+    export_include_dirs: ["include"],
+}
+
+cc_library_headers {
+    name: "libeffectsconfig_headers",
 
     export_include_dirs: ["include"],
 }
diff --git a/media/libeffects/config/include/media/EffectsConfig.h b/media/libeffects/config/include/media/EffectsConfig.h
index 57d4dd7..a9730e5 100644
--- a/media/libeffects/config/include/media/EffectsConfig.h
+++ b/media/libeffects/config/include/media/EffectsConfig.h
@@ -22,8 +22,10 @@
  * @see audio_effects_conf_V2_0.xsd for documentation on each structure
  */
 
+#include <error/Result.h>
 #include <system/audio_effect.h>
 
+#include <cstddef>
 #include <map>
 #include <memory>
 #include <string>
@@ -75,6 +77,12 @@
     std::string address;
 };
 
+struct Processings {
+    std::vector<InputStream> preprocess;
+    std::vector<OutputStream> postprocess;
+    std::vector<DeviceEffects> deviceprocess;
+};
+
 /** Parsed configuration.
  * Intended to be a transient structure only used for deserialization.
  * Note: Everything is copied in the configuration from the xml dom.
@@ -82,19 +90,16 @@
  *       consider keeping a private handle on the xml dom and replace all strings by dom pointers.
  *       Or even better, use SAX parsing to avoid the allocations all together.
  */
-struct Config {
+struct Config : public Processings {
     float version;
     Libraries libraries;
     Effects effects;
-    std::vector<OutputStream> postprocess;
-    std::vector<InputStream> preprocess;
-    std::vector<DeviceEffects> deviceprocess;
 };
 
 /** Result of `parse(const char*)` */
 struct ParsingResult {
     /** Parsed config, nullptr if the xml lib could not load the file */
-    std::unique_ptr<Config> parsedConfig;
+    std::shared_ptr<const Config> parsedConfig;
     size_t nbSkippedElement; //< Number of skipped invalid library, effect or processing chain
     const std::string configPath; //< Path to the loaded configuration
 };
diff --git a/media/libeffects/config/src/EffectsConfig.cpp b/media/libeffects/config/src/EffectsConfig.cpp
index 1696233..3096659 100644
--- a/media/libeffects/config/src/EffectsConfig.cpp
+++ b/media/libeffects/config/src/EffectsConfig.cpp
@@ -286,7 +286,7 @@
         return {nullptr, 0, std::move(path)};
     }
 
-    auto config = std::make_unique<Config>();
+    auto config = std::make_shared<Config>();
     size_t nbSkippedElements = 0;
     auto registerFailure = [&nbSkippedElements](bool result) {
         nbSkippedElements += result ? 0 : 1;
diff --git a/media/libeffects/factory/Android.bp b/media/libeffects/factory/Android.bp
index 22838a3..d94093e 100644
--- a/media/libeffects/factory/Android.bp
+++ b/media/libeffects/factory/Android.bp
@@ -39,6 +39,7 @@
     header_libs: [
         "libaudioeffects",
         "libeffects_headers",
+        "liberror_headers",
     ],
     export_header_lib_headers: ["libeffects_headers"],
 }
@@ -56,7 +57,6 @@
         "-Werror",
     ],
 
-
     shared_libs: [
         "libeffectsconfig",
         "libeffects",
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp b/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp
index 0382df3..57c4791 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp
+++ b/media/libmediaplayerservice/nuplayer/NuPlayerRenderer.cpp
@@ -157,7 +157,8 @@
       mTotalBuffersQueued(0),
       mLastAudioBufferDrained(0),
       mUseAudioCallback(false),
-      mWakeLock(new AWakeLock()) {
+      mWakeLock(new AWakeLock()),
+      mNeedVideoClearAnchor(false) {
     CHECK(mediaClock != NULL);
     mPlaybackRate = mPlaybackSettings.mSpeed;
     mMediaClock->setPlaybackRate(mPlaybackRate);
@@ -234,6 +235,10 @@
             return err;
         }
     }
+
+    if (!mHasAudio && mHasVideo) {
+        mNeedVideoClearAnchor = true;
+    }
     mPlaybackSettings = rate;
     mPlaybackRate = rate.mSpeed;
     mMediaClock->setPlaybackRate(mPlaybackRate);
@@ -327,7 +332,6 @@
             mNextVideoTimeMediaUs = -1;
         }
 
-        mMediaClock->clearAnchor();
         mVideoLateByUs = 0;
         mSyncQueues = false;
     }
@@ -1346,6 +1350,10 @@
 
     {
         Mutex::Autolock autoLock(mLock);
+        if (mNeedVideoClearAnchor && !mHasAudio) {
+            mNeedVideoClearAnchor = false;
+            clearAnchorTime();
+        }
         if (mAnchorTimeMediaUs < 0) {
             mMediaClock->updateAnchor(mediaTimeUs, nowUs, mediaTimeUs);
             mAnchorTimeMediaUs = mediaTimeUs;
@@ -1500,6 +1508,8 @@
                         mNextVideoTimeMediaUs + kDefaultVideoFrameIntervalUs);
             }
         }
+    } else {
+        mHasVideo = false;
     }
 }
 
@@ -1661,6 +1671,7 @@
         } else {
             notifyComplete = mNotifyCompleteVideo;
             mNotifyCompleteVideo = false;
+            mHasVideo = false;
         }
 
         // If we're currently syncing the queues, i.e. dropping audio while
@@ -1673,7 +1684,17 @@
         // is flushed.
         syncQueuesDone_l();
     }
-    clearAnchorTime();
+
+    if (audio && mDrainVideoQueuePending) {
+        // Audio should not clear anchor(MediaClock) directly, because video
+        // postDrainVideoQueue sets msg kWhatDrainVideoQueue into MediaClock
+        // timer, clear anchor without update immediately may block msg posting.
+        // So, postpone clear action to video to ensure anchor can be updated
+        // immediately after clear
+        mNeedVideoClearAnchor = true;
+    } else {
+        clearAnchorTime();
+    }
 
     ALOGV("flushing %s", audio ? "audio" : "video");
     if (audio) {
diff --git a/media/libmediaplayerservice/nuplayer/include/nuplayer/NuPlayerRenderer.h b/media/libmediaplayerservice/nuplayer/include/nuplayer/NuPlayerRenderer.h
index 3640678..2659979 100644
--- a/media/libmediaplayerservice/nuplayer/include/nuplayer/NuPlayerRenderer.h
+++ b/media/libmediaplayerservice/nuplayer/include/nuplayer/NuPlayerRenderer.h
@@ -304,6 +304,9 @@
     int64_t getDurationUsIfPlayedAtSampleRate(uint32_t numFrames);
 
     DISALLOW_EVIL_CONSTRUCTORS(Renderer);
+
+private:
+    bool mNeedVideoClearAnchor;
 };
 
 } // namespace android
diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index e1d4796..0f5021b 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -482,14 +482,17 @@
     return mAAudioHwBurstMinMicros;
 }
 
-status_t AudioFlinger::setDeviceConnectedState(const struct audio_port_v7 *port, bool connected) {
+status_t AudioFlinger::setDeviceConnectedState(const struct audio_port_v7 *port,
+                                               media::DeviceConnectedState state) {
     status_t final_result = NO_INIT;
     Mutex::Autolock _l(mLock);
     AutoMutex lock(mHardwareLock);
     mHardwareStatus = AUDIO_HW_SET_CONNECTED_STATE;
     for (size_t i = 0; i < mAudioHwDevs.size(); i++) {
         sp<DeviceHalInterface> dev = mAudioHwDevs.valueAt(i)->hwDevice();
-        status_t result = dev->setConnectedState(port, connected);
+        status_t result = state == media::DeviceConnectedState::PREPARE_TO_DISCONNECT
+                ? dev->prepareToDisconnectExternalDevice(port)
+                : dev->setConnectedState(port, state == media::DeviceConnectedState::CONNECTED);
         // Same logic as with setParameter: it's a success if at least one
         // HAL module accepts the update.
         if (final_result != NO_ERROR) {
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index 9079be9..c2493ec 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -291,7 +291,8 @@
 
     virtual int32_t getAAudioHardwareBurstMinUsec();
 
-    virtual status_t setDeviceConnectedState(const struct audio_port_v7 *port, bool connected);
+    virtual status_t setDeviceConnectedState(const struct audio_port_v7 *port,
+                                             media::DeviceConnectedState state);
 
     virtual status_t setSimulateDeviceConnections(bool enabled);
 
diff --git a/services/audiopolicy/AudioPolicyInterface.h b/services/audiopolicy/AudioPolicyInterface.h
index 7ad9f6c..0a9e6eb 100644
--- a/services/audiopolicy/AudioPolicyInterface.h
+++ b/services/audiopolicy/AudioPolicyInterface.h
@@ -17,6 +17,7 @@
 #ifndef ANDROID_AUDIOPOLICY_INTERFACE_H
 #define ANDROID_AUDIOPOLICY_INTERFACE_H
 
+#include <android/media/DeviceConnectedState.h>
 #include <media/AudioCommonTypes.h>
 #include <media/AudioContainers.h>
 #include <media/AudioDeviceTypeAddr.h>
@@ -550,7 +551,8 @@
     virtual status_t updateSecondaryOutputs(
             const TrackSecondaryOutputsMap& trackSecondaryOutputs) = 0;
 
-    virtual status_t setDeviceConnectedState(const struct audio_port_v7 *port, bool connected) = 0;
+    virtual status_t setDeviceConnectedState(const struct audio_port_v7 *port,
+                                             media::DeviceConnectedState state) = 0;
 };
 
     // These are the signatures of createAudioPolicyManager/destroyAudioPolicyManager
diff --git a/services/audiopolicy/common/managerdefinitions/Android.bp b/services/audiopolicy/common/managerdefinitions/Android.bp
index 1f23ae3..3df23f1 100644
--- a/services/audiopolicy/common/managerdefinitions/Android.bp
+++ b/services/audiopolicy/common/managerdefinitions/Android.bp
@@ -15,6 +15,7 @@
         "src/AudioInputDescriptor.cpp",
         "src/AudioOutputDescriptor.cpp",
         "src/AudioPatch.cpp",
+        "src/AudioPolicyConfig.cpp",
         "src/AudioPolicyMix.cpp",
         "src/AudioProfileVectorHelper.cpp",
         "src/AudioRoute.cpp",
diff --git a/services/audiopolicy/common/managerdefinitions/include/AudioPolicyConfig.h b/services/audiopolicy/common/managerdefinitions/include/AudioPolicyConfig.h
index a62d3f0..b24fce8 100644
--- a/services/audiopolicy/common/managerdefinitions/include/AudioPolicyConfig.h
+++ b/services/audiopolicy/common/managerdefinitions/include/AudioPolicyConfig.h
@@ -16,62 +16,56 @@
 
 #pragma once
 
+#include <string>
 #include <unordered_map>
 #include <unordered_set>
+#include <vector>
 
-#include <AudioPatch.h>
 #include <DeviceDescriptor.h>
-#include <IOProfile.h>
 #include <HwModule.h>
-#include <PolicyAudioPort.h>
-#include <AudioInputDescriptor.h>
-#include <AudioOutputDescriptor.h>
-#include <AudioPolicyMix.h>
-#include <EffectDescriptor.h>
-#include <SoundTriggerSession.h>
-#include <media/AudioProfile.h>
+#include <error/Result.h>
+#include <utils/StrongPointer.h>
+#include <utils/RefBase.h>
 
 namespace android {
 
-// This class gathers together various bits of AudioPolicyManager
-// configuration, which are usually filled out as a result of parsing
-// the audio_policy_configuration.xml file.
+// This class gathers together various bits of AudioPolicyManager configuration. It can be filled
+// out either as a result of parsing the audio_policy_configuration.xml file, from the HAL data, or
+// to default fallback data.
 //
-// Note that AudioPolicyConfig doesn't own some of the data,
-// it simply proxies access to the fields of AudioPolicyManager
-// class. Be careful about the fields that are references,
-// e.g. 'mOutputDevices'. This also means that it's impossible
-// to implement "deep copying" of this class without re-designing it.
-class AudioPolicyConfig
+// The data in this class is immutable once loaded, this is why a pointer to a const is returned
+// from the factory methods. However, this does not prevent modifications of data bits that
+// are held inside collections, for example, individual modules, devices, etc.
+class AudioPolicyConfig : public RefBase
 {
 public:
-    AudioPolicyConfig(HwModuleCollection &hwModules,
-                      DeviceVector &outputDevices,
-                      DeviceVector &inputDevices,
-                      sp<DeviceDescriptor> &defaultOutputDevice)
-        : mHwModules(hwModules),
-          mOutputDevices(outputDevices),
-          mInputDevices(inputDevices),
-          mDefaultOutputDevice(defaultOutputDevice) {
-        clear();
-    }
+    // Surround formats, with an optional list of subformats that are equivalent from users' POV.
+    using SurroundFormats = std::unordered_map<audio_format_t, std::unordered_set<audio_format_t>>;
 
-    void clear() {
-        mSource = {};
-        mEngineLibraryNameSuffix = kDefaultEngineLibraryNameSuffix;
-        mHwModules.clear();
-        mOutputDevices.clear();
-        mInputDevices.clear();
-        mDefaultOutputDevice.clear();
-        mIsSpeakerDrcEnabled = false;
-        mIsCallScreenModeSupported = false;
-        mSurroundFormats.clear();
-    }
+    // The source used to indicate the default fallback configuration.
+    static const constexpr char* const kDefaultConfigSource = "AudioPolicyConfig::setDefault";
+
+    // Creates the default (fallback) configuration.
+    static sp<const AudioPolicyConfig> createDefault();
+    // Attempts to load the configuration from the XML file, falls back to default on failure.
+    // If the XML file path is not provided, uses `audio_get_audio_policy_config_file` function.
+    static sp<const AudioPolicyConfig> loadFromApmXmlConfigWithFallback(
+            const std::string& xmlFilePath = "");
+    // The factory method to use in APM tests which craft the configuration manually.
+    static sp<AudioPolicyConfig> createWritableForTests();
+    // The factory method to use in APM tests which use a custom XML file.
+    static error::Result<sp<AudioPolicyConfig>> loadFromCustomXmlConfigForTests(
+            const std::string& xmlFilePath);
+    // The factory method to use in VTS tests. If the 'configPath' is empty,
+    // it is determined automatically from the list of known config paths.
+    static error::Result<sp<AudioPolicyConfig>> loadFromCustomXmlConfigForVtsTests(
+            const std::string& configPath, const std::string& xmlFileName);
+
+    ~AudioPolicyConfig() = default;
 
     const std::string& getSource() const {
         return mSource;
     }
-
     void setSource(const std::string& file) {
         mSource = file;
     }
@@ -79,16 +73,24 @@
     const std::string& getEngineLibraryNameSuffix() const {
         return mEngineLibraryNameSuffix;
     }
-
     void setEngineLibraryNameSuffix(const std::string& suffix) {
         mEngineLibraryNameSuffix = suffix;
     }
 
+    const HwModuleCollection& getHwModules() const { return mHwModules; }
     void setHwModules(const HwModuleCollection &hwModules)
     {
         mHwModules = hwModules;
     }
 
+    const DeviceVector& getInputDevices() const
+    {
+        return mInputDevices;
+    }
+    const DeviceVector& getOutputDevices() const
+    {
+        return mOutputDevices;
+    }
     void addDevice(const sp<DeviceDescriptor> &device)
     {
         if (audio_is_output_device(device->type())) {
@@ -97,128 +99,70 @@
             mInputDevices.add(device);
         }
     }
-
     void addInputDevices(const DeviceVector &inputDevices)
     {
         mInputDevices.add(inputDevices);
     }
-
     void addOutputDevices(const DeviceVector &outputDevices)
     {
         mOutputDevices.add(outputDevices);
     }
 
-    bool isSpeakerDrcEnabled() const { return mIsSpeakerDrcEnabled; }
+    const sp<DeviceDescriptor>& getDefaultOutputDevice() const { return mDefaultOutputDevice; }
+    void setDefaultOutputDevice(const sp<DeviceDescriptor> &defaultDevice)
+    {
+        mDefaultOutputDevice = defaultDevice;
+    }
 
+    bool isSpeakerDrcEnabled() const { return mIsSpeakerDrcEnabled; }
     void setSpeakerDrcEnabled(bool isSpeakerDrcEnabled)
     {
         mIsSpeakerDrcEnabled = isSpeakerDrcEnabled;
     }
 
     bool isCallScreenModeSupported() const { return mIsCallScreenModeSupported; }
-
     void setCallScreenModeSupported(bool isCallScreenModeSupported)
     {
         mIsCallScreenModeSupported = isCallScreenModeSupported;
     }
 
-
-    const HwModuleCollection getHwModules() const { return mHwModules; }
-
-    const DeviceVector &getInputDevices() const
-    {
-        return mInputDevices;
-    }
-
-    const DeviceVector &getOutputDevices() const
-    {
-        return mOutputDevices;
-    }
-
-    void setDefaultOutputDevice(const sp<DeviceDescriptor> &defaultDevice)
-    {
-        mDefaultOutputDevice = defaultDevice;
-    }
-
-    const sp<DeviceDescriptor> &getDefaultOutputDevice() const { return mDefaultOutputDevice; }
-
-    void setDefault(void)
-    {
-        mSource = "AudioPolicyConfig::setDefault";
-        mEngineLibraryNameSuffix = kDefaultEngineLibraryNameSuffix;
-        mDefaultOutputDevice = new DeviceDescriptor(AUDIO_DEVICE_OUT_SPEAKER);
-        mDefaultOutputDevice->addAudioProfile(AudioProfile::createFullDynamic(gDynamicFormat));
-        sp<DeviceDescriptor> defaultInputDevice = new DeviceDescriptor(AUDIO_DEVICE_IN_BUILTIN_MIC);
-        defaultInputDevice->addAudioProfile(AudioProfile::createFullDynamic(gDynamicFormat));
-        sp<AudioProfile> micProfile = new AudioProfile(
-                AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_IN_MONO, 8000);
-        defaultInputDevice->addAudioProfile(micProfile);
-        mOutputDevices.add(mDefaultOutputDevice);
-        mInputDevices.add(defaultInputDevice);
-
-        sp<HwModule> module = new HwModule(AUDIO_HARDWARE_MODULE_ID_PRIMARY, 2 /*halVersionMajor*/);
-        mHwModules.add(module);
-
-        sp<OutputProfile> outProfile = new OutputProfile("primary");
-        outProfile->addAudioProfile(
-                new AudioProfile(AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_OUT_STEREO, 44100));
-        outProfile->addSupportedDevice(mDefaultOutputDevice);
-        outProfile->setFlags(AUDIO_OUTPUT_FLAG_PRIMARY);
-        module->addOutputProfile(outProfile);
-
-        sp<InputProfile> inProfile = new InputProfile("primary");
-        inProfile->addAudioProfile(micProfile);
-        inProfile->addSupportedDevice(defaultInputDevice);
-        module->addInputProfile(inProfile);
-
-        setDefaultSurroundFormats();
-    }
-
-    // Surround formats, with an optional list of subformats that are equivalent from users' POV.
-    using SurroundFormats = std::unordered_map<audio_format_t, std::unordered_set<audio_format_t>>;
-
     const SurroundFormats &getSurroundFormats() const
     {
         return mSurroundFormats;
     }
-
+    void setDefaultSurroundFormats();
     void setSurroundFormats(const SurroundFormats &surroundFormats)
     {
         mSurroundFormats = surroundFormats;
     }
-
-    void setDefaultSurroundFormats()
+    void setSurroundFormats(SurroundFormats &&surroundFormats)
     {
-        mSurroundFormats = {
-            {AUDIO_FORMAT_AC3, {}},
-            {AUDIO_FORMAT_E_AC3, {}},
-            {AUDIO_FORMAT_DTS, {}},
-            {AUDIO_FORMAT_DTS_HD, {}},
-            {AUDIO_FORMAT_DTS_HD_MA, {}},
-            {AUDIO_FORMAT_DTS_UHD, {}},
-            {AUDIO_FORMAT_DTS_UHD_P2, {}},
-            {AUDIO_FORMAT_AAC_LC, {
-                    AUDIO_FORMAT_AAC_HE_V1, AUDIO_FORMAT_AAC_HE_V2, AUDIO_FORMAT_AAC_ELD,
-                    AUDIO_FORMAT_AAC_XHE}},
-            {AUDIO_FORMAT_DOLBY_TRUEHD, {}},
-            {AUDIO_FORMAT_E_AC3_JOC, {}},
-            {AUDIO_FORMAT_AC4, {}}};
+        mSurroundFormats = std::move(surroundFormats);
     }
 
+    void setDefault();
+
 private:
+    friend class sp<AudioPolicyConfig>;
+
     static const constexpr char* const kDefaultEngineLibraryNameSuffix = "default";
 
-    std::string mSource;
-    std::string mEngineLibraryNameSuffix;
-    HwModuleCollection &mHwModules; /**< Collection of Module, with Profiles, i.e. Mix Ports. */
-    DeviceVector &mOutputDevices;
-    DeviceVector &mInputDevices;
-    sp<DeviceDescriptor> &mDefaultOutputDevice;
+    AudioPolicyConfig() = default;
+
+    void augmentData();
+    status_t loadFromXml(const std::string& xmlFilePath, bool forVts);
+
+    std::string mSource;  // Not kDefaultConfigSource. Empty source means an empty config.
+    std::string mEngineLibraryNameSuffix = kDefaultEngineLibraryNameSuffix;
+    HwModuleCollection mHwModules; /**< Collection of Module, with Profiles, i.e. Mix Ports. */
+    DeviceVector mOutputDevices;
+    DeviceVector mInputDevices;
+    sp<DeviceDescriptor> mDefaultOutputDevice;
     // TODO: remove when legacy conf file is removed. true on devices that use DRC on the
     // DEVICE_CATEGORY_SPEAKER path to boost soft sounds, used to adjust volume curves accordingly.
     // Note: remove also speaker_drc_enabled from global configuration of XML config file.
-    bool mIsSpeakerDrcEnabled;
-    bool mIsCallScreenModeSupported;
+    bool mIsSpeakerDrcEnabled = false;
+    bool mIsCallScreenModeSupported = false;
     SurroundFormats mSurroundFormats;
 };
 
diff --git a/services/audiopolicy/common/managerdefinitions/src/AudioPolicyConfig.cpp b/services/audiopolicy/common/managerdefinitions/src/AudioPolicyConfig.cpp
new file mode 100644
index 0000000..575a6c5
--- /dev/null
+++ b/services/audiopolicy/common/managerdefinitions/src/AudioPolicyConfig.cpp
@@ -0,0 +1,171 @@
+/*
+ * Copyright (C) 2009 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.
+ */
+
+#define LOG_TAG "APM_Config"
+
+#include <AudioPolicyConfig.h>
+#include <IOProfile.h>
+#include <Serializer.h>
+#include <media/AudioProfile.h>
+#include <system/audio.h>
+#include <system/audio_config.h>
+#include <utils/Log.h>
+
+namespace android {
+
+// static
+sp<const AudioPolicyConfig> AudioPolicyConfig::createDefault() {
+    auto config = sp<AudioPolicyConfig>::make();
+    config->setDefault();
+    return config;
+}
+
+// static
+sp<const AudioPolicyConfig> AudioPolicyConfig::loadFromApmXmlConfigWithFallback(
+        const std::string& xmlFilePath) {
+    const std::string filePath =
+            xmlFilePath.empty() ? audio_get_audio_policy_config_file() : xmlFilePath;
+    auto config = sp<AudioPolicyConfig>::make();
+    if (status_t status = config->loadFromXml(filePath, false /*forVts*/); status == NO_ERROR) {
+        return config;
+    } else {
+        return createDefault();
+    }
+}
+
+// static
+sp<AudioPolicyConfig> AudioPolicyConfig::createWritableForTests() {
+    return sp<AudioPolicyConfig>::make();
+}
+
+// static
+error::Result<sp<AudioPolicyConfig>> AudioPolicyConfig::loadFromCustomXmlConfigForTests(
+        const std::string& xmlFilePath) {
+    auto config = sp<AudioPolicyConfig>::make();
+    if (status_t status = config->loadFromXml(xmlFilePath, false /*forVts*/); status == NO_ERROR) {
+        return config;
+    } else {
+        return base::unexpected(status);
+    }
+}
+
+// static
+error::Result<sp<AudioPolicyConfig>> AudioPolicyConfig::loadFromCustomXmlConfigForVtsTests(
+        const std::string& configPath, const std::string& xmlFileName) {
+    auto filePath = configPath;
+    if (filePath.empty()) {
+        for (const auto& location : audio_get_configuration_paths()) {
+            std::string path = location + '/' + xmlFileName;
+            if (access(path.c_str(), F_OK) == 0) {
+                filePath = location;
+                break;
+            }
+        }
+    }
+    if (filePath.empty()) {
+        ALOGE("Did not find a config file \"%s\" among known config paths", xmlFileName.c_str());
+        return base::unexpected(BAD_VALUE);
+    }
+    auto config = sp<AudioPolicyConfig>::make();
+    if (status_t status = config->loadFromXml(filePath + "/" + xmlFileName, true /*forVts*/);
+            status == NO_ERROR) {
+        return config;
+    } else {
+        return base::unexpected(status);
+    }
+}
+
+void AudioPolicyConfig::augmentData() {
+    // If microphones address is empty, set it according to device type
+    for (size_t i = 0; i < mInputDevices.size(); i++) {
+        if (mInputDevices[i]->address().empty()) {
+            if (mInputDevices[i]->type() == AUDIO_DEVICE_IN_BUILTIN_MIC) {
+                mInputDevices[i]->setAddress(AUDIO_BOTTOM_MICROPHONE_ADDRESS);
+            } else if (mInputDevices[i]->type() == AUDIO_DEVICE_IN_BACK_MIC) {
+                mInputDevices[i]->setAddress(AUDIO_BACK_MICROPHONE_ADDRESS);
+            }
+        }
+    }
+}
+
+status_t AudioPolicyConfig::loadFromXml(const std::string& xmlFilePath, bool forVts) {
+    if (xmlFilePath.empty()) {
+        ALOGE("Audio policy configuration file name is empty");
+        return BAD_VALUE;
+    }
+    status_t status = forVts ? deserializeAudioPolicyFileForVts(xmlFilePath.c_str(), this)
+            : deserializeAudioPolicyFile(xmlFilePath.c_str(), this);
+    if (status == NO_ERROR) {
+        mSource = xmlFilePath;
+        augmentData();
+    } else {
+        ALOGE("Could not load audio policy from the configuration file \"%s\": %d",
+                xmlFilePath.c_str(), status);
+    }
+    return status;
+}
+
+void AudioPolicyConfig::setDefault() {
+    mSource = kDefaultConfigSource;
+    mEngineLibraryNameSuffix = kDefaultEngineLibraryNameSuffix;
+
+    mDefaultOutputDevice = new DeviceDescriptor(AUDIO_DEVICE_OUT_SPEAKER);
+    mDefaultOutputDevice->addAudioProfile(AudioProfile::createFullDynamic(gDynamicFormat));
+    sp<DeviceDescriptor> defaultInputDevice = new DeviceDescriptor(AUDIO_DEVICE_IN_BUILTIN_MIC);
+    defaultInputDevice->addAudioProfile(AudioProfile::createFullDynamic(gDynamicFormat));
+    sp<AudioProfile> micProfile = new AudioProfile(
+            AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_IN_MONO, 8000);
+    defaultInputDevice->addAudioProfile(micProfile);
+    mOutputDevices.add(mDefaultOutputDevice);
+    mInputDevices.add(defaultInputDevice);
+
+    sp<HwModule> module = new HwModule(AUDIO_HARDWARE_MODULE_ID_PRIMARY, 2 /*halVersionMajor*/);
+    mHwModules.add(module);
+
+    sp<OutputProfile> outProfile = new OutputProfile("primary");
+    outProfile->addAudioProfile(
+            new AudioProfile(AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_OUT_STEREO, 44100));
+    outProfile->addSupportedDevice(mDefaultOutputDevice);
+    outProfile->setFlags(AUDIO_OUTPUT_FLAG_PRIMARY);
+    module->addOutputProfile(outProfile);
+
+    sp<InputProfile> inProfile = new InputProfile("primary");
+    inProfile->addAudioProfile(micProfile);
+    inProfile->addSupportedDevice(defaultInputDevice);
+    module->addInputProfile(inProfile);
+
+    setDefaultSurroundFormats();
+    augmentData();
+}
+
+void AudioPolicyConfig::setDefaultSurroundFormats() {
+    mSurroundFormats = {
+        {AUDIO_FORMAT_AC3, {}},
+        {AUDIO_FORMAT_E_AC3, {}},
+        {AUDIO_FORMAT_DTS, {}},
+        {AUDIO_FORMAT_DTS_HD, {}},
+        {AUDIO_FORMAT_DTS_HD_MA, {}},
+        {AUDIO_FORMAT_DTS_UHD, {}},
+        {AUDIO_FORMAT_DTS_UHD_P2, {}},
+        {AUDIO_FORMAT_AAC_LC, {
+                AUDIO_FORMAT_AAC_HE_V1, AUDIO_FORMAT_AAC_HE_V2, AUDIO_FORMAT_AAC_ELD,
+                AUDIO_FORMAT_AAC_XHE}},
+        {AUDIO_FORMAT_DOLBY_TRUEHD, {}},
+        {AUDIO_FORMAT_E_AC3_JOC, {}},
+        {AUDIO_FORMAT_AC4, {}}};
+}
+
+} // namespace android
diff --git a/services/audiopolicy/common/managerdefinitions/src/Serializer.cpp b/services/audiopolicy/common/managerdefinitions/src/Serializer.cpp
index d446e96..1b48dc3 100644
--- a/services/audiopolicy/common/managerdefinitions/src/Serializer.cpp
+++ b/services/audiopolicy/common/managerdefinitions/src/Serializer.cpp
@@ -29,6 +29,7 @@
 #include <utils/StrongPointer.h>
 #include <utils/Errors.h>
 #include <utils/RefBase.h>
+#include "IOProfile.h"
 #include "Serializer.h"
 #include "TypeConverter.h"
 
@@ -907,7 +908,6 @@
 {
     PolicySerializer serializer;
     status_t status = serializer.deserialize(fileName, config);
-    if (status != OK) config->clear();
     return status;
 }
 
@@ -915,7 +915,6 @@
 {
     PolicySerializer serializer;
     status_t status = serializer.deserialize(fileName, config, true /*ignoreVendorExtensions*/);
-    if (status != OK) config->clear();
     return status;
 }
 
diff --git a/services/audiopolicy/fuzzer/audiopolicy_fuzzer.cpp b/services/audiopolicy/fuzzer/audiopolicy_fuzzer.cpp
index 28268c9..fba4e0f 100644
--- a/services/audiopolicy/fuzzer/audiopolicy_fuzzer.cpp
+++ b/services/audiopolicy/fuzzer/audiopolicy_fuzzer.cpp
@@ -216,8 +216,9 @@
     virtual void process();
 
    protected:
+    sp<AudioPolicyConfig> mConfig{AudioPolicyConfig::createWritableForTests()};
     std::unique_ptr<AudioPolicyManagerTestClient> mClient{new AudioPolicyManagerTestClient};
-    std::unique_ptr<AudioPolicyTestManager> mManager{new AudioPolicyTestManager(mClient.get())};
+    std::unique_ptr<AudioPolicyTestManager> mManager;
     FuzzedDataProvider *mFdp;
 };
 
@@ -230,7 +231,10 @@
     }
     // init code
     SetUpManagerConfig();
-
+    if (mConfig == nullptr) {
+        return false;
+    }
+    mManager.reset(new AudioPolicyTestManager(mConfig, mClient.get()));
     if (mManager->initialize() != NO_ERROR) {
         return false;
     }
@@ -240,7 +244,7 @@
     return true;
 }
 
-void AudioPolicyManagerFuzzer::SetUpManagerConfig() { mManager->getConfig().setDefault(); }
+void AudioPolicyManagerFuzzer::SetUpManagerConfig() { mConfig->setDefault(); }
 
 bool AudioPolicyManagerFuzzer::getOutputForAttr(
     audio_port_handle_t *selectedDeviceId, audio_format_t format, audio_channel_mask_t channelMask,
@@ -406,7 +410,11 @@
 }
 
 void AudioPolicyManagerFuzzerWithConfigurationFile::SetUpManagerConfig() {
-    deserializeAudioPolicyFile(getConfigFile().c_str(), &mManager->getConfig());
+    const std::string configFilePath = getConfigFile();
+    auto result = AudioPolicyConfig::loadFromCustomXmlConfigForTests(configFilePath);
+    mConfig = result.ok() ? mConfig = result.value() : nullptr;
+    ALOGE_IF(!result.ok(), "%s: Failed to deserialize \"%s\": %d",
+            __func__, configFilePath.c_str(), result.error());
 }
 
 void AudioPolicyManagerFuzzerWithConfigurationFile::traverseAndFuzzXML(xmlDocPtr pDoc,
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
index 0239627..3dbb177 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.cpp
@@ -115,14 +115,13 @@
 }
 
 void AudioPolicyManager::broadcastDeviceConnectionState(const sp<DeviceDescriptor> &device,
-                                                        audio_policy_dev_state_t state)
+                                                        media::DeviceConnectedState state)
 {
     audio_port_v7 devicePort;
     device->toAudioPort(&devicePort);
-    if (status_t status = mpClientInterface->setDeviceConnectedState(
-                    &devicePort, state == AUDIO_POLICY_DEVICE_STATE_AVAILABLE);
+    if (status_t status = mpClientInterface->setDeviceConnectedState(&devicePort, state);
             status != OK) {
-        ALOGE("Error %d while setting connected state for device %s", status,
+        ALOGE("Error %d while setting connected state for device %s", state,
                 device->getDeviceTypeAddr().toString(false).c_str());
     }
 }
@@ -205,14 +204,14 @@
 
             // Before checking outputs, broadcast connect event to allow HAL to retrieve dynamic
             // parameters on newly connected devices (instead of opening the outputs...)
-            broadcastDeviceConnectionState(device, state);
+            broadcastDeviceConnectionState(device, media::DeviceConnectedState::CONNECTED);
 
             if (checkOutputsForDevice(device, state, outputs) != NO_ERROR) {
                 mAvailableOutputDevices.remove(device);
 
                 mHwModules.cleanUpForDevice(device);
 
-                broadcastDeviceConnectionState(device, AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE);
+                broadcastDeviceConnectionState(device, media::DeviceConnectedState::DISCONNECTED);
                 return INVALID_OPERATION;
             }
 
@@ -234,8 +233,9 @@
 
             ALOGV("%s() disconnecting output device %s", __func__, device->toString().c_str());
 
-            // Send Disconnect to HALs
-            broadcastDeviceConnectionState(device, state);
+            // Notify the HAL to prepare to disconnect device
+            broadcastDeviceConnectionState(
+                    device, media::DeviceConnectedState::PREPARE_TO_DISCONNECT);
 
             // remove device from available output devices
             mAvailableOutputDevices.remove(device);
@@ -244,6 +244,9 @@
 
             checkOutputsForDevice(device, state, outputs);
 
+            // Send Disconnect to HALs
+            broadcastDeviceConnectionState(device, media::DeviceConnectedState::DISCONNECTED);
+
             // Reset active device codec
             device->setEncodedFormat(AUDIO_FORMAT_DEFAULT);
 
@@ -377,12 +380,12 @@
 
             // Before checking intputs, broadcast connect event to allow HAL to retrieve dynamic
             // parameters on newly connected devices (instead of opening the inputs...)
-            broadcastDeviceConnectionState(device, state);
+            broadcastDeviceConnectionState(device, media::DeviceConnectedState::CONNECTED);
 
             if (checkInputsForDevice(device, state) != NO_ERROR) {
                 mAvailableInputDevices.remove(device);
 
-                broadcastDeviceConnectionState(device, AUDIO_POLICY_DEVICE_STATE_UNAVAILABLE);
+                broadcastDeviceConnectionState(device, media::DeviceConnectedState::DISCONNECTED);
 
                 mHwModules.cleanUpForDevice(device);
 
@@ -400,13 +403,17 @@
 
             ALOGV("%s() disconnecting input device %s", __func__, device->toString().c_str());
 
-            // Set Disconnect to HALs
-            broadcastDeviceConnectionState(device, state);
+            // Notify the HAL to prepare to disconnect device
+            broadcastDeviceConnectionState(
+                    device, media::DeviceConnectedState::PREPARE_TO_DISCONNECT);
 
             mAvailableInputDevices.remove(device);
 
             checkInputsForDevice(device, state);
 
+            // Set Disconnect to HALs
+            broadcastDeviceConnectionState(device, media::DeviceConnectedState::DISCONNECTED);
+
             // remove device from mReportedFormatsMap cache
             mReportedFormatsMap.erase(device);
         } break;
@@ -1272,7 +1279,7 @@
 
     *selectedDeviceId = getFirstDeviceId(outputDevices);
     for (auto &outputDevice : outputDevices) {
-        if (outputDevice->getId() == getConfig().getDefaultOutputDevice()->getId()) {
+        if (outputDevice->getId() == mConfig->getDefaultOutputDevice()->getId()) {
             *selectedDeviceId = outputDevice->getId();
             break;
         }
@@ -1829,7 +1836,8 @@
 }
 
 bool AudioPolicyManager::msdHasPatchesToAllDevices(const AudioDeviceTypeAddrVector& devices) {
-    DeviceVector devicesToCheck = mOutputDevicesAll.getDevicesFromDeviceTypeAddrVec(devices);
+    DeviceVector devicesToCheck =
+            mConfig->getOutputDevices().getDevicesFromDeviceTypeAddrVec(devices);
     AudioPatchCollection msdPatches = getMsdOutputPatches();
     for (size_t i = 0; i < msdPatches.size(); i++) {
         const auto& patch = msdPatches[i];
@@ -3888,13 +3896,13 @@
     dst->appendFormat(" TTS output %savailable\n", mTtsOutputAvailable ? "" : "not ");
     dst->appendFormat(" Master mono: %s\n", mMasterMono ? "on" : "off");
     dst->appendFormat(" Communication Strategy id: %d\n", mCommunnicationStrategy);
-    dst->appendFormat(" Config source: %s\n", mConfig.getSource().c_str()); // getConfig not const
+    dst->appendFormat(" Config source: %s\n", mConfig->getSource().c_str());
 
     dst->append("\n");
     mAvailableOutputDevices.dump(dst, String8("Available output"), 1);
     dst->append("\n");
     mAvailableInputDevices.dump(dst, String8("Available input"), 1);
-    mHwModulesAll.dump(dst);
+    mHwModules.dump(dst);
     mOutputs.dump(dst);
     mInputs.dump(dst);
     mEffects.dump(dst, 1);
@@ -4252,7 +4260,7 @@
         return OK;
     };
 
-    for (const auto& module : mHwModulesAll) {
+    for (const auto& module : mHwModules) {
         for (const auto& dev : module->getDeclaredDevices()) {
             if (role == media::AudioPortRole::NONE ||
                     ((role == media::AudioPortRole::SOURCE)
@@ -5143,10 +5151,10 @@
     size_t formatsWritten = 0;
     size_t formatsMax = *numSurroundFormats;
 
-    *numSurroundFormats = mConfig.getSurroundFormats().size();
+    *numSurroundFormats = mConfig->getSurroundFormats().size();
     audio_policy_forced_cfg_t forceUse = mEngine->getForceUse(
             AUDIO_POLICY_FORCE_FOR_ENCODED_SURROUND);
-    for (const auto& format: mConfig.getSurroundFormats()) {
+    for (const auto& format: mConfig->getSurroundFormats()) {
         if (formatsWritten < formatsMax) {
             surroundFormats[formatsWritten] = format.first;
             bool formatEnabled = true;
@@ -5199,10 +5207,10 @@
         formatset.insert(encodedFormats.begin(), encodedFormats.end());
         // Filter the formats which are supported by the vendor hardware.
         for (auto it = formatset.begin(); it != formatset.end(); ++it) {
-            if (mConfig.getSurroundFormats().count(*it) != 0) {
+            if (mConfig->getSurroundFormats().count(*it) != 0) {
                 formats.insert(*it);
             } else {
-                for (const auto& pair : mConfig.getSurroundFormats()) {
+                for (const auto& pair : mConfig->getSurroundFormats()) {
                     if (pair.second.count(*it) != 0) {
                         formats.insert(pair.first);
                         break;
@@ -5223,8 +5231,8 @@
 status_t AudioPolicyManager::setSurroundFormatEnabled(audio_format_t audioFormat, bool enabled)
 {
     ALOGV("%s() format 0x%X enabled %d", __func__, audioFormat, enabled);
-    const auto& formatIter = mConfig.getSurroundFormats().find(audioFormat);
-    if (formatIter == mConfig.getSurroundFormats().end()) {
+    const auto& formatIter = mConfig->getSurroundFormats().find(audioFormat);
+    if (formatIter == mConfig->getSurroundFormats().end()) {
         ALOGW("%s() format 0x%X is not a known surround format", __func__, audioFormat);
         return BAD_VALUE;
     }
@@ -5364,7 +5372,7 @@
 
 bool AudioPolicyManager::isCallScreenModeSupported()
 {
-    return getConfig().isCallScreenModeSupported();
+    return mConfig->isCallScreenModeSupported();
 }
 
 
@@ -5599,26 +5607,14 @@
     return mAudioPortGeneration++;
 }
 
-static status_t deserializeAudioPolicyXmlConfig(AudioPolicyConfig &config) {
-    if (std::string audioPolicyXmlConfigFile = audio_get_audio_policy_config_file();
-            !audioPolicyXmlConfigFile.empty()) {
-        status_t ret = deserializeAudioPolicyFile(audioPolicyXmlConfigFile.c_str(), &config);
-        if (ret == NO_ERROR) {
-            config.setSource(audioPolicyXmlConfigFile);
-        }
-        return ret;
-    }
-    return BAD_VALUE;
-}
-
-AudioPolicyManager::AudioPolicyManager(AudioPolicyClientInterface *clientInterface,
-                                       bool /*forTesting*/)
+AudioPolicyManager::AudioPolicyManager(const sp<const AudioPolicyConfig>& config,
+                                       AudioPolicyClientInterface *clientInterface)
     :
     mUidCached(AID_AUDIOSERVER), // no need to call getuid(), there's only one of us running.
+    mConfig(config),
     mpClientInterface(clientInterface),
     mLimitRingtoneVolume(false), mLastVoiceVolume(-1.0f),
     mA2dpSuspended(false),
-    mConfig(mHwModulesAll, mOutputDevicesAll, mInputDevicesAll, mDefaultOutputDevice),
     mAudioPortGeneration(1),
     mBeaconMuteRefCount(0),
     mBeaconPlayingRefCount(0),
@@ -5629,23 +5625,10 @@
 {
 }
 
-AudioPolicyManager::AudioPolicyManager(AudioPolicyClientInterface *clientInterface)
-        : AudioPolicyManager(clientInterface, false /*forTesting*/)
-{
-    loadConfig();
-}
-
-void AudioPolicyManager::loadConfig() {
-    if (deserializeAudioPolicyXmlConfig(getConfig()) != NO_ERROR) {
-        ALOGE("could not load audio policy configuration file, setting defaults");
-        getConfig().setDefault();
-    }
-}
-
 status_t AudioPolicyManager::initialize() {
     {
         auto engLib = EngineLibrary::load(
-                        "libaudiopolicyengine" + getConfig().getEngineLibraryNameSuffix() + ".so");
+                        "libaudiopolicyengine" + mConfig->getEngineLibraryNameSuffix() + ".so");
         if (!engLib) {
             ALOGE("%s: Failed to load the engine library", __FUNCTION__);
             return NO_INIT;
@@ -5663,31 +5646,22 @@
         return status;
     }
 
-    // If microphones address is empty, set it according to device type
-    for (size_t i = 0; i < mInputDevicesAll.size(); i++) {
-        if (mInputDevicesAll[i]->address().empty()) {
-            if (mInputDevicesAll[i]->type() == AUDIO_DEVICE_IN_BUILTIN_MIC) {
-                mInputDevicesAll[i]->setAddress(AUDIO_BOTTOM_MICROPHONE_ADDRESS);
-            } else if (mInputDevicesAll[i]->type() == AUDIO_DEVICE_IN_BACK_MIC) {
-                mInputDevicesAll[i]->setAddress(AUDIO_BACK_MICROPHONE_ADDRESS);
-            }
-        }
-    }
-
     // The actual device selection cache will be updated when calling `updateDevicesAndOutputs`
     // at the end of this function.
     mEngine->initializeDeviceSelectionCache();
     mCommunnicationStrategy = mEngine->getProductStrategyForAttributes(
         mEngine->getAttributesForStreamType(AUDIO_STREAM_VOICE_CALL));
 
-    // after parsing the config, mOutputDevicesAll and mInputDevicesAll contain all known devices;
+    // after parsing the config, mConfig contain all known devices;
     // open all output streams needed to access attached devices
     onNewAudioModulesAvailableInt(nullptr /*newDevices*/);
 
     // make sure default device is reachable
-    if (mDefaultOutputDevice == 0 || !mAvailableOutputDevices.contains(mDefaultOutputDevice)) {
-        ALOGE_IF(mDefaultOutputDevice != 0, "Default device %s is unreachable",
-                 mDefaultOutputDevice->toString().c_str());
+    if (const auto defaultOutputDevice = mConfig->getDefaultOutputDevice();
+            defaultOutputDevice == nullptr ||
+            !mAvailableOutputDevices.contains(defaultOutputDevice)) {
+        ALOGE_IF(defaultOutputDevice != nullptr, "Default device %s is unreachable",
+                 defaultOutputDevice->toString().c_str());
         status = NO_INIT;
     }
     ALOGW_IF(mPrimaryOutput == nullptr, "The policy configuration does not declare a primary output");
@@ -5712,8 +5686,8 @@
    mOutputs.clear();
    mInputs.clear();
    mHwModules.clear();
-   mHwModulesAll.clear();
    mManualSurroundFormats.clear();
+   mConfig.clear();
 }
 
 status_t AudioPolicyManager::initCheck()
@@ -5735,7 +5709,7 @@
 
 void AudioPolicyManager::onNewAudioModulesAvailableInt(DeviceVector *newDevices)
 {
-    for (const auto& hwModule : mHwModulesAll) {
+    for (const auto& hwModule : mConfig->getHwModules()) {
         if (std::find(mHwModules.begin(), mHwModules.end(), hwModule) != mHwModules.end()) {
             continue;
         }
@@ -5764,10 +5738,10 @@
             }
 
             const DeviceVector &supportedDevices = outProfile->getSupportedDevices();
-            DeviceVector availProfileDevices = supportedDevices.filter(mOutputDevicesAll);
+            DeviceVector availProfileDevices = supportedDevices.filter(mConfig->getOutputDevices());
             sp<DeviceDescriptor> supportedDevice = 0;
-            if (supportedDevices.contains(mDefaultOutputDevice)) {
-                supportedDevice = mDefaultOutputDevice;
+            if (supportedDevices.contains(mConfig->getDefaultOutputDevice())) {
+                supportedDevice = mConfig->getDefaultOutputDevice();
             } else {
                 // choose first device present in profile's SupportedDevices also part of
                 // mAvailableOutputDevices.
@@ -5776,7 +5750,7 @@
                 }
                 supportedDevice = availProfileDevices.itemAt(0);
             }
-            if (!mOutputDevicesAll.contains(supportedDevice)) {
+            if (!mConfig->getOutputDevices().contains(supportedDevice)) {
                 continue;
             }
             sp<SwAudioOutputDescriptor> outputDesc = new SwAudioOutputDescriptor(outProfile,
@@ -5831,7 +5805,7 @@
             // chose first device present in profile's SupportedDevices also part of
             // available input devices
             const DeviceVector &supportedDevices = inProfile->getSupportedDevices();
-            DeviceVector availProfileDevices = supportedDevices.filter(mInputDevicesAll);
+            DeviceVector availProfileDevices = supportedDevices.filter(mConfig->getInputDevices());
             if (availProfileDevices.isEmpty()) {
                 ALOGV("%s: Input device list is empty! for profile %s",
                     __func__, inProfile->getTagName().c_str());
@@ -7615,7 +7589,7 @@
     std::unordered_set<audio_format_t> enforcedSurround(
             devDesc->encodedFormats().begin(), devDesc->encodedFormats().end());
     std::unordered_set<audio_format_t> allSurround;  // A flat set of all known surround formats
-    for (const auto& pair : mConfig.getSurroundFormats()) {
+    for (const auto& pair : mConfig->getSurroundFormats()) {
         allSurround.insert(pair.first);
         for (const auto& subformat : pair.second) allSurround.insert(subformat);
     }
diff --git a/services/audiopolicy/managerdefault/AudioPolicyManager.h b/services/audiopolicy/managerdefault/AudioPolicyManager.h
index e0411ab..a52f2c6 100644
--- a/services/audiopolicy/managerdefault/AudioPolicyManager.h
+++ b/services/audiopolicy/managerdefault/AudioPolicyManager.h
@@ -35,6 +35,7 @@
 #include <media/PatchBuilder.h>
 #include "AudioPolicyInterface.h"
 
+#include <android/media/DeviceConnectedState.h>
 #include <android/media/audio/common/AudioPort.h>
 #include <AudioPolicyManagerObserver.h>
 #include <AudioPolicyConfig.h>
@@ -92,7 +93,8 @@
 {
 
 public:
-        explicit AudioPolicyManager(AudioPolicyClientInterface *clientInterface);
+        AudioPolicyManager(const sp<const AudioPolicyConfig>& config,
+                           AudioPolicyClientInterface *clientInterface);
         virtual ~AudioPolicyManager();
 
         // AudioPolicyInterface
@@ -406,19 +408,7 @@
         status_t initialize();
 
 protected:
-        // A constructor that allows more fine-grained control over initialization process,
-        // used in automatic tests.
-        AudioPolicyManager(AudioPolicyClientInterface *clientInterface, bool forTesting);
-
-        // These methods should be used when finer control over APM initialization
-        // is needed, e.g. in tests. Must be used in conjunction with the constructor
-        // that only performs fields initialization. The public constructor comprises
-        // these steps in the following sequence:
-        //   - field initializing constructor;
-        //   - loadConfig;
-        //   - initialize.
-        AudioPolicyConfig& getConfig() { return mConfig; }
-        void loadConfig();
+        const AudioPolicyConfig& getConfig() const { return *(mConfig.get()); }
 
         // From AudioPolicyManagerObserver
         virtual const AudioPatchCollection &getAudioPatches() const
@@ -452,7 +442,7 @@
         }
         virtual const sp<DeviceDescriptor> &getDefaultOutputDevice() const
         {
-            return mDefaultOutputDevice;
+            return mConfig->getDefaultOutputDevice();
         }
 
         std::vector<volume_group_t> getVolumeGroups() const
@@ -911,6 +901,7 @@
                 sp<SwAudioOutputDescriptor> ignoredOutput, uint32_t delayMs);
 
         const uid_t mUidCached;                         // AID_AUDIOSERVER
+        sp<const AudioPolicyConfig> mConfig;
         AudioPolicyClientInterface *mpClientInterface;  // audio policy client interface
         sp<SwAudioOutputDescriptor> mPrimaryOutput;     // primary output descriptor
         // list of descriptors for outputs currently opened
@@ -923,8 +914,6 @@
         SwAudioOutputCollection mPreviousOutputs;
         AudioInputCollection mInputs;     // list of input descriptors
 
-        DeviceVector  mOutputDevicesAll; // all output devices from the config
-        DeviceVector  mInputDevicesAll;  // all input devices from the config
         DeviceVector  mAvailableOutputDevices; // all available output devices
         DeviceVector  mAvailableInputDevices;  // all available input devices
 
@@ -934,11 +923,7 @@
         bool    mA2dpSuspended;  // true if A2DP output is suspended
 
         EffectDescriptorCollection mEffects;  // list of registered audio effects
-        sp<DeviceDescriptor> mDefaultOutputDevice; // output device selected by default at boot time
         HwModuleCollection mHwModules; // contains modules that have been loaded successfully
-        HwModuleCollection mHwModulesAll; // contains all modules declared in the config
-
-        AudioPolicyConfig mConfig;
 
         std::atomic<uint32_t> mAudioPortGeneration;
 
@@ -1036,13 +1021,16 @@
         void updateAudioProfiles(const sp<DeviceDescriptor>& devDesc, audio_io_handle_t ioHandle,
                 AudioProfileVector &profiles);
 
+        // Notify the policy client to prepare for disconnecting external device.
+        void prepareToDisconnectExternalDevice(const sp<DeviceDescriptor> &device);
+
         // Notify the policy client of any change of device state with AUDIO_IO_HANDLE_NONE,
         // so that the client interprets it as global to audio hardware interfaces.
         // It can give a chance to HAL implementer to retrieve dynamic capabilities associated
         // to this device for example.
         // TODO avoid opening stream to retrieve capabilities of a profile.
         void broadcastDeviceConnectionState(const sp<DeviceDescriptor> &device,
-                                            audio_policy_dev_state_t state);
+                                            media::DeviceConnectedState state);
 
         // updates device caching and output for streams that can influence the
         //    routing of notifications
diff --git a/services/audiopolicy/service/Android.bp b/services/audiopolicy/service/Android.bp
index 4c19d40..8c541f6 100644
--- a/services/audiopolicy/service/Android.bp
+++ b/services/audiopolicy/service/Android.bp
@@ -51,8 +51,9 @@
         "libsensor",
         "libsensorprivacy",
         "libshmemcompat",
-        "libutils",
         "libstagefright_foundation",
+        "libutils",
+        "libxml2",
         "audioclient-types-aidl-cpp",
         "audioflinger-aidl-cpp",
         "audiopolicy-aidl-cpp",
diff --git a/services/audiopolicy/service/AudioPolicyClientImpl.cpp b/services/audiopolicy/service/AudioPolicyClientImpl.cpp
index c766a15..4691135 100644
--- a/services/audiopolicy/service/AudioPolicyClientImpl.cpp
+++ b/services/audiopolicy/service/AudioPolicyClientImpl.cpp
@@ -313,14 +313,13 @@
 }
 
 status_t AudioPolicyService::AudioPolicyClient::setDeviceConnectedState(
-        const struct audio_port_v7 *port, bool connected) {
+        const struct audio_port_v7 *port, media::DeviceConnectedState state) {
     sp<IAudioFlinger> af = AudioSystem::get_audio_flinger();
     if (af == nullptr) {
         ALOGW("%s: could not get AudioFlinger", __func__);
         return PERMISSION_DENIED;
     }
-    return af->setDeviceConnectedState(port, connected);
+    return af->setDeviceConnectedState(port, state);
 }
 
-
 } // namespace android
diff --git a/services/audiopolicy/service/AudioPolicyEffects.cpp b/services/audiopolicy/service/AudioPolicyEffects.cpp
index c7a60c2..b111865 100644
--- a/services/audiopolicy/service/AudioPolicyEffects.cpp
+++ b/services/audiopolicy/service/AudioPolicyEffects.cpp
@@ -41,26 +41,25 @@
 // AudioPolicyEffects Implementation
 // ----------------------------------------------------------------------------
 
-AudioPolicyEffects::AudioPolicyEffects()
-{
-    status_t loadResult = loadAudioEffectXmlConfig();
+AudioPolicyEffects::AudioPolicyEffects(const sp<EffectsFactoryHalInterface>& effectsFactoryHal) {
+    // load xml config with effectsFactoryHal
+    status_t loadResult = loadAudioEffectConfig(effectsFactoryHal);
     if (loadResult == NO_ERROR) {
-        mDefaultDeviceEffectFuture = std::async(
-                    std::launch::async, &AudioPolicyEffects::initDefaultDeviceEffects, this);
+        mDefaultDeviceEffectFuture =
+                std::async(std::launch::async, &AudioPolicyEffects::initDefaultDeviceEffects, this);
     } else if (loadResult < 0) {
-        ALOGW("Failed to load XML effect configuration, fallback to .conf");
+        ALOGW("Failed to query effect configuration, fallback to load .conf");
         // load automatic audio effect modules
         if (access(AUDIO_EFFECT_VENDOR_CONFIG_FILE, R_OK) == 0) {
-            loadAudioEffectConfig(AUDIO_EFFECT_VENDOR_CONFIG_FILE);
+            loadAudioEffectConfigLegacy(AUDIO_EFFECT_VENDOR_CONFIG_FILE);
         } else if (access(AUDIO_EFFECT_DEFAULT_CONFIG_FILE, R_OK) == 0) {
-            loadAudioEffectConfig(AUDIO_EFFECT_DEFAULT_CONFIG_FILE);
+            loadAudioEffectConfigLegacy(AUDIO_EFFECT_DEFAULT_CONFIG_FILE);
         }
     } else if (loadResult > 0) {
         ALOGE("Effect config is partially invalid, skipped %d elements", loadResult);
     }
 }
 
-
 AudioPolicyEffects::~AudioPolicyEffects()
 {
     size_t i = 0;
@@ -907,10 +906,18 @@
     return NO_ERROR;
 }
 
-status_t AudioPolicyEffects::loadAudioEffectXmlConfig() {
-    auto result = effectsConfig::parse();
-    if (result.parsedConfig == nullptr) {
-        return -ENOENT;
+status_t AudioPolicyEffects::loadAudioEffectConfig(
+        const sp<EffectsFactoryHalInterface>& effectsFactoryHal) {
+    if (!effectsFactoryHal) {
+        ALOGE("%s Null EffectsFactoryHalInterface", __func__);
+        return UNEXPECTED_NULL;
+    }
+
+    const auto skippedElements = VALUE_OR_RETURN_STATUS(effectsFactoryHal->getSkippedElements());
+    const auto processings = effectsFactoryHal->getProcessings();
+    if (!processings) {
+        ALOGE("%s Null processings with %zu skipped elements", __func__, skippedElements);
+        return UNEXPECTED_NULL;
     }
 
     auto loadProcessingChain = [](auto& processingChain, auto& streams) {
@@ -924,9 +931,8 @@
         }
     };
 
-    auto loadDeviceProcessingChain = [](auto &processingChain, auto& devicesEffects) {
+    auto loadDeviceProcessingChain = [](auto& processingChain, auto& devicesEffects) {
         for (auto& deviceProcess : processingChain) {
-
             auto effectDescs = std::make_unique<EffectDescVector>();
             for (auto& effect : deviceProcess.effects) {
                 effectDescs->mEffects.add(
@@ -938,17 +944,18 @@
         }
     };
 
-    loadProcessingChain(result.parsedConfig->preprocess, mInputSources);
-    loadProcessingChain(result.parsedConfig->postprocess, mOutputStreams);
+    loadProcessingChain(processings->preprocess, mInputSources);
+    loadProcessingChain(processings->postprocess, mOutputStreams);
+
     {
         Mutex::Autolock _l(mLock);
-        loadDeviceProcessingChain(result.parsedConfig->deviceprocess, mDeviceEffects);
+        loadDeviceProcessingChain(processings->deviceprocess, mDeviceEffects);
     }
-    // Casting from ssize_t to status_t is probably safe, there should not be more than 2^31 errors
-    return result.nbSkippedElement;
+
+    return skippedElements;
 }
 
-status_t AudioPolicyEffects::loadAudioEffectConfig(const char *path)
+status_t AudioPolicyEffects::loadAudioEffectConfigLegacy(const char *path)
 {
     cnode *root;
     char *data;
diff --git a/services/audiopolicy/service/AudioPolicyEffects.h b/services/audiopolicy/service/AudioPolicyEffects.h
index 13d5d0c..9f65a96 100644
--- a/services/audiopolicy/service/AudioPolicyEffects.h
+++ b/services/audiopolicy/service/AudioPolicyEffects.h
@@ -20,22 +20,33 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <string.h>
+#include <future>
+
+#include <android-base/thread_annotations.h>
 #include <cutils/misc.h>
 #include <media/AudioEffect.h>
+#include <media/audiohal/EffectsFactoryHalInterface.h>
 #include <system/audio.h>
 #include <utils/Vector.h>
 #include <utils/SortedVector.h>
-#include <android-base/thread_annotations.h>
-
-#include <future>
 
 namespace android {
 
 // ----------------------------------------------------------------------------
 
-// AudioPolicyEffects class
-// This class will manage all effects attached to input and output streams in
-// AudioPolicyService as configured in audio_effects.conf.
+/**
+ * AudioPolicyEffects class.
+ *
+ * This class manages all effects attached to input and output streams in AudioPolicyService.
+ * The effect configurations can be queried in several ways:
+ *
+ * With HIDL HAL, the configuration file `audio_effects.xml` will be loaded by libAudioHal. If this
+ * file does not exist, AudioPolicyEffects class will fallback to load configuration from
+ * `/vendor/etc/audio_effects.conf` (AUDIO_EFFECT_VENDOR_CONFIG_FILE). If this file also does not
+ * exist, the configuration will be loaded from the file `/system/etc/audio_effects.conf`.
+ *
+ * With AIDL HAL, the configuration will be queried with the method `IFactory::queryProcessing()`.
+ */
 class AudioPolicyEffects : public RefBase
 {
 
@@ -44,7 +55,7 @@
     // The constructor will parse audio_effects.conf
     // First it will look whether vendor specific file exists,
     // otherwise it will parse the system default file.
-	         AudioPolicyEffects();
+    explicit AudioPolicyEffects(const sp<EffectsFactoryHalInterface>& effectsFactoryHal);
     virtual ~AudioPolicyEffects();
 
     // NOTE: methods on AudioPolicyEffects should never be called with the AudioPolicyService
@@ -218,7 +229,6 @@
 
     };
 
-
     static const char * const kInputSourceNames[AUDIO_SOURCE_CNT -1];
     static audio_source_t inputSourceNameToEnum(const char *name);
 
@@ -226,8 +236,8 @@
     audio_stream_type_t streamNameToEnum(const char *name);
 
     // Parse audio_effects.conf
-    status_t loadAudioEffectConfig(const char *path); // TODO: add legacy in the name
-    status_t loadAudioEffectXmlConfig(); // TODO: remove "Xml" in the name
+    status_t loadAudioEffectConfigLegacy(const char *path);
+    status_t loadAudioEffectConfig(const sp<EffectsFactoryHalInterface>& effectsFactoryHal);
 
     // Load all effects descriptors in configuration file
     status_t loadEffects(cnode *root, Vector <EffectDesc *>& effects);
diff --git a/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp b/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
index f34427c..0df3962 100644
--- a/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
+++ b/services/audiopolicy/service/AudioPolicyInterfaceImpl.cpp
@@ -460,14 +460,14 @@
     }
     ALOGV("startOutput()");
     sp<AudioPlaybackClient> client;
-    sp<AudioPolicyEffects>audioPolicyEffects;
+    sp<AudioPolicyEffects> audioPolicyEffects;
 
     getPlaybackClientAndEffects(portId, client, audioPolicyEffects, __func__);
 
     if (audioPolicyEffects != 0) {
         // create audio processors according to stream
-        status_t status = audioPolicyEffects->addOutputSessionEffects(
-            client->io, client->stream, client->session);
+        status_t status = audioPolicyEffects->addOutputSessionEffects(client->io, client->stream,
+                                                                      client->session);
         if (status != NO_ERROR && status != ALREADY_EXISTS) {
             ALOGW("Failed to add effects on session %d", client->session);
         }
diff --git a/services/audiopolicy/service/AudioPolicyService.cpp b/services/audiopolicy/service/AudioPolicyService.cpp
index 281785e..b343f34 100644
--- a/services/audiopolicy/service/AudioPolicyService.cpp
+++ b/services/audiopolicy/service/AudioPolicyService.cpp
@@ -46,6 +46,7 @@
 
 #include <system/audio.h>
 #include <system/audio_policy.h>
+#include <AudioPolicyConfig.h>
 #include <AudioPolicyManager.h>
 
 namespace android {
@@ -179,7 +180,8 @@
 
 static AudioPolicyInterface* createAudioPolicyManager(AudioPolicyClientInterface *clientInterface)
 {
-    AudioPolicyManager *apm = new AudioPolicyManager(clientInterface);
+    AudioPolicyManager *apm = new AudioPolicyManager(
+            AudioPolicyConfig::loadFromApmXmlConfigWithFallback(), clientInterface);
     status_t status = apm->initialize();
     if (status != NO_ERROR) {
         delete apm;
@@ -252,7 +254,8 @@
     }
 
     // load audio processing modules
-    sp<AudioPolicyEffects> audioPolicyEffects = new AudioPolicyEffects();
+    const sp<EffectsFactoryHalInterface> effectsFactoryHal = EffectsFactoryHalInterface::create();
+    sp<AudioPolicyEffects> audioPolicyEffects = new AudioPolicyEffects(effectsFactoryHal);
     sp<UidPolicy> uidPolicy = new UidPolicy(this);
     sp<SensorPrivacyPolicy> sensorPrivacyPolicy = new SensorPrivacyPolicy(this);
     {
@@ -271,7 +274,7 @@
         AudioDeviceTypeAddrVector devices;
         bool hasSpatializer = mAudioPolicyManager->canBeSpatialized(&attr, nullptr, devices);
         if (hasSpatializer) {
-            mSpatializer = Spatializer::create(this);
+            mSpatializer = Spatializer::create(this, effectsFactoryHal);
         }
         if (mSpatializer == nullptr) {
             // No spatializer created, signal the reason: NO_INIT a failure, OK means intended.
diff --git a/services/audiopolicy/service/AudioPolicyService.h b/services/audiopolicy/service/AudioPolicyService.h
index 7f682c8..a101309 100644
--- a/services/audiopolicy/service/AudioPolicyService.h
+++ b/services/audiopolicy/service/AudioPolicyService.h
@@ -822,7 +822,7 @@
                 const TrackSecondaryOutputsMap& trackSecondaryOutputs) override;
 
         status_t setDeviceConnectedState(
-                const struct audio_port_v7 *port, bool connected) override;
+                const struct audio_port_v7 *port, media::DeviceConnectedState state) override;
 
      private:
         AudioPolicyService *mAudioPolicyService;
diff --git a/services/audiopolicy/service/Spatializer.cpp b/services/audiopolicy/service/Spatializer.cpp
index 5db82f7..f0d5274 100644
--- a/services/audiopolicy/service/Spatializer.cpp
+++ b/services/audiopolicy/service/Spatializer.cpp
@@ -30,7 +30,6 @@
 #include <audio_utils/fixedfft.h>
 #include <cutils/bitops.h>
 #include <hardware/sensors.h>
-#include <media/audiohal/EffectsFactoryHalInterface.h>
 #include <media/stagefright/foundation/AHandler.h>
 #include <media/stagefright/foundation/AMessage.h>
 #include <media/MediaMetricsItem.h>
@@ -215,18 +214,17 @@
 };
 
 // ---------------------------------------------------------------------------
-sp<Spatializer> Spatializer::create(SpatializerPolicyCallback *callback) {
+sp<Spatializer> Spatializer::create(SpatializerPolicyCallback* callback,
+                                    const sp<EffectsFactoryHalInterface>& effectsFactoryHal) {
     sp<Spatializer> spatializer;
 
-    sp<EffectsFactoryHalInterface> effectsFactoryHal = EffectsFactoryHalInterface::create();
     if (effectsFactoryHal == nullptr) {
         ALOGW("%s failed to create effect factory interface", __func__);
         return spatializer;
     }
 
     std::vector<effect_descriptor_t> descriptors;
-    status_t status =
-            effectsFactoryHal->getDescriptors(FX_IID_SPATIALIZER, &descriptors);
+    status_t status = effectsFactoryHal->getDescriptors(FX_IID_SPATIALIZER, &descriptors);
     if (status != NO_ERROR) {
         ALOGW("%s failed to get spatializer descriptor, error %d", __func__, status);
         return spatializer;
diff --git a/services/audiopolicy/service/Spatializer.h b/services/audiopolicy/service/Spatializer.h
index 60030bd..a657b7f 100644
--- a/services/audiopolicy/service/Spatializer.h
+++ b/services/audiopolicy/service/Spatializer.h
@@ -27,6 +27,7 @@
 #include <audio_utils/SimpleLog.h>
 #include <math.h>
 #include <media/AudioEffect.h>
+#include <media/audiohal/EffectsFactoryHalInterface.h>
 #include <media/VectorRecorder.h>
 #include <media/audiohal/EffectHalInterface.h>
 #include <media/stagefright/foundation/ALooper.h>
@@ -94,7 +95,8 @@
                     private SpatializerPoseController::Listener,
                     public virtual AudioSystem::SupportedLatencyModesCallback {
   public:
-    static sp<Spatializer> create(SpatializerPolicyCallback *callback);
+    static sp<Spatializer> create(SpatializerPolicyCallback* callback,
+                                  const sp<EffectsFactoryHalInterface>& effectsFactoryHal);
 
            ~Spatializer() override;
 
diff --git a/services/audiopolicy/tests/Android.bp b/services/audiopolicy/tests/Android.bp
index 6813587..8499c1c 100644
--- a/services/audiopolicy/tests/Android.bp
+++ b/services/audiopolicy/tests/Android.bp
@@ -19,18 +19,19 @@
     ],
 
     shared_libs: [
+        "framework-permission-aidl-cpp",
         "libaudioclient",
         "libaudiofoundation",
         "libaudiopolicy",
         "libaudiopolicymanagerdefault",
         "libbase",
+        "libbinder",
+        "libcutils",
         "libhidlbase",
         "liblog",
         "libmedia_helper",
         "libutils",
         "libxml2",
-        "framework-permission-aidl-cpp",
-        "libbinder",
     ],
 
     static_libs: [
@@ -69,17 +70,19 @@
     require_root: true,
 
     shared_libs: [
-        "libaudiofoundation",
+        "audioclient-types-aidl-cpp",
         "libaudioclient",
+        "libaudioclient_aidl_conversion",
+        "libaudiofoundation",
         "libaudiopolicymanagerdefault",
+        "libcutils",
         "liblog",
         "libmedia_helper",
-        "libutils",
-        "libaudioclient_aidl_conversion",
-        "libstagefright_foundation",
         "libshmemcompat",
         "libshmemutil",
-        "audioclient-types-aidl-cpp",
+        "libstagefright_foundation",
+        "libutils",
+        "libxml2",
     ],
 
     static_libs: ["libaudiopolicycomponents"],
diff --git a/services/audiopolicy/tests/AudioPolicyManagerTestClient.h b/services/audiopolicy/tests/AudioPolicyManagerTestClient.h
index 96f58d2..c11d7fc 100644
--- a/services/audiopolicy/tests/AudioPolicyManagerTestClient.h
+++ b/services/audiopolicy/tests/AudioPolicyManagerTestClient.h
@@ -103,10 +103,11 @@
         ++mAudioPortListUpdateCount;
     }
 
-    status_t setDeviceConnectedState(const struct audio_port_v7 *port, bool connected) override {
-        if (connected) {
+    status_t setDeviceConnectedState(const struct audio_port_v7 *port,
+                                     media::DeviceConnectedState state) override {
+        if (state == media::DeviceConnectedState::CONNECTED) {
             mConnectedDevicePorts.push_back(*port);
-        } else {
+        } else if (state == media::DeviceConnectedState::DISCONNECTED){
             mDisconnectedDevicePorts.push_back(*port);
         }
         return NO_ERROR;
diff --git a/services/audiopolicy/tests/AudioPolicyTestClient.h b/services/audiopolicy/tests/AudioPolicyTestClient.h
index 8a85fee..e81a3b5 100644
--- a/services/audiopolicy/tests/AudioPolicyTestClient.h
+++ b/services/audiopolicy/tests/AudioPolicyTestClient.h
@@ -97,8 +97,8 @@
             const TrackSecondaryOutputsMap& trackSecondaryOutputs __unused) override {
         return NO_INIT;
     }
-    status_t setDeviceConnectedState(
-            const struct audio_port_v7 *port __unused, bool connected __unused) override {
+    status_t setDeviceConnectedState(const struct audio_port_v7 *port __unused,
+                                     media::DeviceConnectedState state __unused) override {
         return NO_INIT;
     }
 };
diff --git a/services/audiopolicy/tests/AudioPolicyTestManager.h b/services/audiopolicy/tests/AudioPolicyTestManager.h
index 2a7a060..9ad9849 100644
--- a/services/audiopolicy/tests/AudioPolicyTestManager.h
+++ b/services/audiopolicy/tests/AudioPolicyTestManager.h
@@ -22,9 +22,11 @@
 class AudioPolicyTestManager : public AudioPolicyManager {
   public:
     explicit AudioPolicyTestManager(AudioPolicyClientInterface *clientInterface)
-            : AudioPolicyManager(clientInterface, true /*forTesting*/) { }
+            : AudioPolicyManager(AudioPolicyConfig::createDefault(), clientInterface) {}
+    AudioPolicyTestManager(const sp<const AudioPolicyConfig>& config,
+            AudioPolicyClientInterface *clientInterface)
+            : AudioPolicyManager(config, clientInterface) {}
     using AudioPolicyManager::getConfig;
-    using AudioPolicyManager::loadConfig;
     using AudioPolicyManager::initialize;
     using AudioPolicyManager::getOutputs;
     using AudioPolicyManager::getAvailableOutputDevices;
diff --git a/services/audiopolicy/tests/audio_health_tests.cpp b/services/audiopolicy/tests/audio_health_tests.cpp
index 798332c..70a3022 100644
--- a/services/audiopolicy/tests/audio_health_tests.cpp
+++ b/services/audiopolicy/tests/audio_health_tests.cpp
@@ -21,6 +21,7 @@
 
 #include <gtest/gtest.h>
 
+#include <AudioPolicyConfig.h>
 #include <media/AudioSystem.h>
 #include <media/TypeConverter.h>
 #include <system/audio.h>
@@ -65,19 +66,17 @@
     }
     free(audioPorts);
 
-    AudioPolicyManagerTestClient client;
-    AudioPolicyTestManager manager(&client);
-    manager.loadConfig();
-    ASSERT_NE("AudioPolicyConfig::setDefault", manager.getConfig().getSource());
+    auto config = AudioPolicyConfig::loadFromApmXmlConfigWithFallback();
+    ASSERT_NE(AudioPolicyConfig::kDefaultConfigSource, config->getSource());
 
-    for (auto desc : manager.getConfig().getInputDevices()) {
+    for (const auto& desc : config->getInputDevices()) {
         if (attachedDevices.find(desc->type()) == attachedDevices.end()) {
             std::string deviceType;
             (void)DeviceConverter::toString(desc->type(), deviceType);
             ADD_FAILURE() << "Input device \"" << deviceType << "\" not found";
         }
     }
-    for (auto desc : manager.getConfig().getOutputDevices()) {
+    for (const auto& desc : config->getOutputDevices()) {
         if (attachedDevices.find(desc->type()) == attachedDevices.end()) {
             std::string deviceType;
             (void)DeviceConverter::toString(desc->type(), deviceType);
@@ -87,13 +86,13 @@
 }
 
 TEST(AudioHealthTest, ConnectSupportedDevice) {
+    auto config = AudioPolicyConfig::loadFromApmXmlConfigWithFallback();
+    ASSERT_NE(AudioPolicyConfig::kDefaultConfigSource, config->getSource());
     AudioPolicyManagerTestClient client;
-    AudioPolicyTestManager manager(&client);
-    manager.loadConfig();
-    ASSERT_NE("AudioPolicyConfig::setDefault", manager.getConfig().getSource());
+    AudioPolicyTestManager manager(config, &client);
 
     DeviceVector devices;
-    for (const auto& hwModule : manager.getConfig().getHwModules()) {
+    for (const auto& hwModule : config->getHwModules()) {
         for (const auto& profile : hwModule->getOutputProfiles()) {
             devices.merge(profile->getSupportedDevices());
         }
diff --git a/services/audiopolicy/tests/audiopolicymanager_tests.cpp b/services/audiopolicy/tests/audiopolicymanager_tests.cpp
index 3821f97..4486ce6 100644
--- a/services/audiopolicy/tests/audiopolicymanager_tests.cpp
+++ b/services/audiopolicy/tests/audiopolicymanager_tests.cpp
@@ -68,11 +68,44 @@
 
 } // namespace
 
+TEST(AudioPolicyConfigTest, DefaultConfigForTestsIsEmpty) {
+    auto config = AudioPolicyConfig::createWritableForTests();
+    EXPECT_TRUE(config->getSource().empty());
+    EXPECT_TRUE(config->getHwModules().isEmpty());
+    EXPECT_TRUE(config->getInputDevices().isEmpty());
+    EXPECT_TRUE(config->getOutputDevices().isEmpty());
+}
+
+TEST(AudioPolicyConfigTest, FallbackToDefault) {
+    auto config = AudioPolicyConfig::loadFromApmXmlConfigWithFallback(
+            base::GetExecutableDirectory() + "/test_invalid_audio_policy_configuration.xml");
+    EXPECT_EQ(AudioPolicyConfig::kDefaultConfigSource, config->getSource());
+}
+
+TEST(AudioPolicyConfigTest, LoadForTests) {
+    {
+        auto result = AudioPolicyConfig::loadFromCustomXmlConfigForTests(
+                base::GetExecutableDirectory() + "/test_invalid_audio_policy_configuration.xml");
+        EXPECT_FALSE(result.ok());
+    }
+    {
+        const std::string source =
+                base::GetExecutableDirectory() + "/test_audio_policy_configuration.xml";
+        auto result = AudioPolicyConfig::loadFromCustomXmlConfigForTests(source);
+        ASSERT_TRUE(result.ok());
+        EXPECT_EQ(source, result.value()->getSource());
+        EXPECT_FALSE(result.value()->getHwModules().isEmpty());
+        EXPECT_FALSE(result.value()->getInputDevices().isEmpty());
+        EXPECT_FALSE(result.value()->getOutputDevices().isEmpty());
+    }
+}
+
 TEST(AudioPolicyManagerTestInit, EngineFailure) {
     AudioPolicyTestClient client;
-    AudioPolicyTestManager manager(&client);
-    manager.getConfig().setDefault();
-    manager.getConfig().setEngineLibraryNameSuffix("non-existent");
+    auto config = AudioPolicyConfig::createWritableForTests();
+    config->setDefault();
+    config->setEngineLibraryNameSuffix("non-existent");
+    AudioPolicyTestManager manager(config, &client);
     ASSERT_EQ(NO_INIT, manager.initialize());
     ASSERT_EQ(NO_INIT, manager.initCheck());
 }
@@ -80,41 +113,12 @@
 TEST(AudioPolicyManagerTestInit, ClientFailure) {
     AudioPolicyTestClient client;
     AudioPolicyTestManager manager(&client);
-    manager.getConfig().setDefault();
     // Since the default client fails to open anything,
     // APM should indicate that the initialization didn't succeed.
     ASSERT_EQ(NO_INIT, manager.initialize());
     ASSERT_EQ(NO_INIT, manager.initCheck());
 }
 
-// Verifies that a failure while loading a config doesn't leave
-// APM config in a "dirty" state. Since AudioPolicyConfig object
-// is a proxy for the data hosted by APM, it isn't possible
-// to "deep copy" it, and thus we have to test its elements
-// individually.
-TEST(AudioPolicyManagerTestInit, ConfigLoadingIsTransactional) {
-    AudioPolicyTestClient client;
-    AudioPolicyTestManager manager(&client);
-    ASSERT_TRUE(manager.getConfig().getHwModules().isEmpty());
-    ASSERT_TRUE(manager.getConfig().getInputDevices().isEmpty());
-    ASSERT_TRUE(manager.getConfig().getOutputDevices().isEmpty());
-    status_t status = deserializeAudioPolicyFile(
-            (base::GetExecutableDirectory() +
-                    "/test_invalid_audio_policy_configuration.xml").c_str(),
-            &manager.getConfig());
-    ASSERT_NE(NO_ERROR, status);
-    EXPECT_TRUE(manager.getConfig().getHwModules().isEmpty());
-    EXPECT_TRUE(manager.getConfig().getInputDevices().isEmpty());
-    EXPECT_TRUE(manager.getConfig().getOutputDevices().isEmpty());
-    status = deserializeAudioPolicyFile(
-            (base::GetExecutableDirectory() + "/test_audio_policy_configuration.xml").c_str(),
-            &manager.getConfig());
-    ASSERT_EQ(NO_ERROR, status);
-    EXPECT_FALSE(manager.getConfig().getHwModules().isEmpty());
-    EXPECT_FALSE(manager.getConfig().getInputDevices().isEmpty());
-    EXPECT_FALSE(manager.getConfig().getOutputDevices().isEmpty());
-}
-
 
 class PatchCountCheck {
   public:
@@ -172,6 +176,7 @@
     static audio_port_handle_t getDeviceIdFromPatch(const struct audio_patch* patch);
     virtual AudioPolicyManagerTestClient* getClient() { return new AudioPolicyManagerTestClient; }
 
+    sp<AudioPolicyConfig> mConfig;
     std::unique_ptr<AudioPolicyManagerTestClient> mClient;
     std::unique_ptr<AudioPolicyTestManager> mManager;
 
@@ -180,8 +185,8 @@
 
 void AudioPolicyManagerTest::SetUp() {
     mClient.reset(getClient());
-    mManager.reset(new AudioPolicyTestManager(mClient.get()));
     ASSERT_NO_FATAL_FAILURE(SetUpManagerConfig());  // Subclasses may want to customize the config.
+    mManager.reset(new AudioPolicyTestManager(mConfig, mClient.get()));
     ASSERT_EQ(NO_ERROR, mManager->initialize());
     ASSERT_EQ(NO_ERROR, mManager->initCheck());
 }
@@ -192,7 +197,8 @@
 }
 
 void AudioPolicyManagerTest::SetUpManagerConfig() {
-    mManager->getConfig().setDefault();
+    mConfig = AudioPolicyConfig::createWritableForTests();
+    mConfig->setDefault();
 }
 
 void AudioPolicyManagerTest::dumpToLog() {
@@ -439,7 +445,6 @@
 void AudioPolicyManagerTestMsd::SetUpManagerConfig() {
     // TODO: Consider using Serializer to load part of the config from a string.
     ASSERT_NO_FATAL_FAILURE(AudioPolicyManagerTest::SetUpManagerConfig());
-    AudioPolicyConfig& config = mManager->getConfig();
     mMsdOutputDevice = new DeviceDescriptor(AUDIO_DEVICE_OUT_BUS);
     sp<AudioProfile> pcmOutputProfile = new AudioProfile(
             AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_OUT_STEREO, k48000SamplingRate);
@@ -455,26 +460,26 @@
     sp<AudioProfile> pcmInputProfile = new AudioProfile(
             AUDIO_FORMAT_PCM_16_BIT, AUDIO_CHANNEL_IN_STEREO, 44100);
     mMsdInputDevice->addAudioProfile(pcmInputProfile);
-    config.addDevice(mMsdOutputDevice);
-    config.addDevice(mMsdInputDevice);
+    mConfig->addDevice(mMsdOutputDevice);
+    mConfig->addDevice(mMsdInputDevice);
 
     if (mExpectedAudioPatchCount == 2) {
         // Add SPDIF device with PCM output profile as a second device for dual MSD audio patching.
         mSpdifDevice = new DeviceDescriptor(AUDIO_DEVICE_OUT_SPDIF);
         mSpdifDevice->addAudioProfile(pcmOutputProfile);
-        config.addDevice(mSpdifDevice);
+        mConfig->addDevice(mSpdifDevice);
 
         sp<OutputProfile> spdifOutputProfile = new OutputProfile("spdif output");
         spdifOutputProfile->addAudioProfile(pcmOutputProfile);
         spdifOutputProfile->addSupportedDevice(mSpdifDevice);
-        config.getHwModules().getModuleFromName(AUDIO_HARDWARE_MODULE_ID_PRIMARY)->
+        mConfig->getHwModules().getModuleFromName(AUDIO_HARDWARE_MODULE_ID_PRIMARY)->
                 addOutputProfile(spdifOutputProfile);
     }
 
     sp<HwModule> msdModule = new HwModule(AUDIO_HARDWARE_MODULE_ID_MSD, 2 /*halVersionMajor*/);
-    HwModuleCollection modules = config.getHwModules();
+    HwModuleCollection modules = mConfig->getHwModules();
     modules.add(msdModule);
-    config.setHwModules(modules);
+    mConfig->setHwModules(modules);
 
     sp<OutputProfile> msdOutputProfile = new OutputProfile("msd input");
     msdOutputProfile->addAudioProfile(pcmOutputProfile);
@@ -502,15 +507,15 @@
     // of streams that are not supported by MSD.
     sp<AudioProfile> dtsOutputProfile = new AudioProfile(
             AUDIO_FORMAT_DTS, AUDIO_CHANNEL_OUT_5POINT1, k48000SamplingRate);
-    config.getDefaultOutputDevice()->addAudioProfile(dtsOutputProfile);
+    mConfig->getDefaultOutputDevice()->addAudioProfile(dtsOutputProfile);
     sp<OutputProfile> primaryEncodedOutputProfile = new OutputProfile("encoded");
     primaryEncodedOutputProfile->addAudioProfile(dtsOutputProfile);
     primaryEncodedOutputProfile->setFlags(AUDIO_OUTPUT_FLAG_DIRECT);
-    primaryEncodedOutputProfile->addSupportedDevice(config.getDefaultOutputDevice());
-    config.getHwModules().getModuleFromName(AUDIO_HARDWARE_MODULE_ID_PRIMARY)->
+    primaryEncodedOutputProfile->addSupportedDevice(mConfig->getDefaultOutputDevice());
+    mConfig->getHwModules().getModuleFromName(AUDIO_HARDWARE_MODULE_ID_PRIMARY)->
             addOutputProfile(primaryEncodedOutputProfile);
 
-    mDefaultOutputDevice = config.getDefaultOutputDevice();
+    mDefaultOutputDevice = mConfig->getDefaultOutputDevice();
     if (mExpectedAudioPatchCount == 2) {
         mSpdifDevice->addAudioProfile(dtsOutputProfile);
         primaryEncodedOutputProfile->addSupportedDevice(mSpdifDevice);
@@ -521,12 +526,12 @@
     sp<AudioProfile> iec958InputProfile = new AudioProfile(
             AUDIO_FORMAT_IEC60958, AUDIO_CHANNEL_INDEX_MASK_24, k48000SamplingRate);
     mHdmiInputDevice->addAudioProfile(iec958InputProfile);
-    config.addDevice(mHdmiInputDevice);
+    mConfig->addDevice(mHdmiInputDevice);
     sp<InputProfile> hdmiInputProfile = new InputProfile("hdmi input");
     hdmiInputProfile->addAudioProfile(iec958InputProfile);
     hdmiInputProfile->setFlags(AUDIO_INPUT_FLAG_DIRECT);
     hdmiInputProfile->addSupportedDevice(mHdmiInputDevice);
-    config.getHwModules().getModuleFromName(AUDIO_HARDWARE_MODULE_ID_PRIMARY)->
+    mConfig->getHwModules().getModuleFromName(AUDIO_HARDWARE_MODULE_ID_PRIMARY)->
             addInputProfile(hdmiInputProfile);
 }
 
@@ -693,7 +698,7 @@
     int countDirectProfilesPrimary = 0;
     const auto& primary = mManager->getConfig().getHwModules()
             .getModuleFromName(AUDIO_HARDWARE_MODULE_ID_PRIMARY);
-    for (const auto outputProfile : primary->getOutputProfiles()) {
+    for (const auto& outputProfile : primary->getOutputProfiles()) {
         if (outputProfile->asAudioPort()->isDirectOutput()) {
             countDirectProfilesPrimary += outputProfile->asAudioPort()->getAudioProfiles().size();
         }
@@ -703,7 +708,7 @@
     int countDirectProfilesMsd = 0;
     const auto& msd = mManager->getConfig().getHwModules()
             .getModuleFromName(AUDIO_HARDWARE_MODULE_ID_MSD);
-    for (const auto outputProfile : msd->getOutputProfiles()) {
+    for (const auto& outputProfile : msd->getOutputProfiles()) {
         if (outputProfile->asAudioPort()->isDirectOutput()) {
             countDirectProfilesMsd += outputProfile->asAudioPort()->getAudioProfiles().size();
         }
@@ -894,9 +899,9 @@
         sExecutableDir + "test_audio_policy_configuration.xml";
 
 void AudioPolicyManagerTestWithConfigurationFile::SetUpManagerConfig() {
-    status_t status = deserializeAudioPolicyFile(getConfigFile().c_str(), &mManager->getConfig());
-    ASSERT_EQ(NO_ERROR, status);
-    mManager->getConfig().setSource(getConfigFile());
+    auto result = AudioPolicyConfig::loadFromCustomXmlConfigForTests(getConfigFile());
+    ASSERT_TRUE(result.ok());
+    mConfig = result.value();
 }
 
 TEST_F(AudioPolicyManagerTestWithConfigurationFile, InitSuccess) {