xref: /ohos5.0/foundation/multimedia/audio_framework/services/audio_policy/server/src/service/spatialization/audio_spatialization_service.cpp

/*
 * Copyright (c) 2023 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
#ifndef LOG_TAG
#define LOG_TAG "AudioSpatializationService"
#endif

#include <openssl/sha.h>
#include "audio_spatialization_service.h"

#include "iservice_registry.h"
#include "system_ability_definition.h"

#include "audio_spatialization_state_change_listener_proxy.h"

#include "audio_policy_service.h"

namespace OHOS {
namespace AudioStandard {
using namespace std;

static const int32_t SPATIALIZATION_SERVICE_OK = 0;
static const std::string BLUETOOTH_EFFECT_CHAIN_NAME = "EFFECTCHAIN_BT_MUSIC";
static const std::string SPATIALIZATION_AND_HEAD_TRACKING_SUPPORTED_LABEL = "SPATIALIZATION_AND_HEADTRACKING";
static const std::string SPATIALIZATION_SUPPORTED_LABEL = "SPATIALIZATION";
static const std::string HEAD_TRACKING_SUPPORTED_LABEL = "HEADTRACKING";
static const std::string SPATIALIZATION_STATE_SETTINGKEY = "spatialization_state";
static const std::string SPATIALIZATION_SCENE_SETTINGKEY = "spatialization_scene";
static const std::string PRE_SETTING_SPATIAL_ADDRESS = "pre_setting_spatial_address";
static sptr<IStandardAudioService> g_adProxy = nullptr;
mutex g_adSpatializationProxyMutex;

enum SpatializationStateOffset {
    SPATIALIZATION_OFFSET,
    HEADTRACKING_OFFSET
};

static void UnpackSpatializationState(uint32_t pack, AudioSpatializationState &state)
{
    state = {.spatializationEnabled = pack >> SPATIALIZATION_OFFSET & 1,
        .headTrackingEnabled = pack >> HEADTRACKING_OFFSET & 1};
}

static uint32_t PackSpatializationState(AudioSpatializationState state)
{
    return (state.spatializationEnabled << SPATIALIZATION_OFFSET) |
        (state.headTrackingEnabled << HEADTRACKING_OFFSET);
}

static bool IsAudioSpatialDeviceStateEqual(const AudioSpatialDeviceState &a, const AudioSpatialDeviceState &b)
{
    return ((a.isSpatializationSupported == b.isSpatializationSupported) &&
        (a.isHeadTrackingSupported == b.isHeadTrackingSupported) && (a.spatialDeviceType == b.spatialDeviceType));
}

static bool IsSpatializationSupportedUsage(StreamUsage usage)
{
    return usage != STREAM_USAGE_GAME;
}

AudioSpatializationService::~AudioSpatializationService()
{
    AUDIO_ERR_LOG("~AudioSpatializationService()");
}

void AudioSpatializationService::Init(const std::vector<EffectChain> &effectChains)
{
    for (auto effectChain: effectChains) {
        if (effectChain.name != BLUETOOTH_EFFECT_CHAIN_NAME) {
            continue;
        }
        if (effectChain.label == SPATIALIZATION_AND_HEAD_TRACKING_SUPPORTED_LABEL) {
            isSpatializationSupported_ = true;
            isHeadTrackingSupported_ = true;
        } else if (effectChain.label == SPATIALIZATION_SUPPORTED_LABEL) {
            isSpatializationSupported_ = true;
        } else if (effectChain.label == HEAD_TRACKING_SUPPORTED_LABEL) {
            isHeadTrackingSupported_ = true;
        }
    }
    UpdateSpatializationStateReal(false);
}

void AudioSpatializationService::Deinit(void)
{
    return;
}

const sptr<IStandardAudioService> AudioSpatializationService::GetAudioServerProxy()
{
    AUDIO_DEBUG_LOG("[Spatialization Service] Start get audio spatialization service proxy.");
    lock_guard<mutex> lock(g_adSpatializationProxyMutex);

    if (g_adProxy == nullptr) {
        auto samgr = SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
        CHECK_AND_RETURN_RET_LOG(samgr != nullptr, nullptr,
            "[Spatialization Service] Get samgr failed.");

        sptr<IRemoteObject> object = samgr->GetSystemAbility(AUDIO_DISTRIBUTED_SERVICE_ID);
        CHECK_AND_RETURN_RET_LOG(object != nullptr, nullptr,
            "[Spatialization Service] audio service remote object is NULL.");

        g_adProxy = iface_cast<IStandardAudioService>(object);
        CHECK_AND_RETURN_RET_LOG(g_adProxy != nullptr, nullptr,
            "[Spatialization Service] init g_adProxy is NULL.");
    }
    const sptr<IStandardAudioService> gsp = g_adProxy;
    return gsp;
}

bool AudioSpatializationService::IsSpatializationEnabled()
{
    std::lock_guard<std::mutex> lock(spatializationServiceMutex_);
    if (preSettingSpatialAddress_ != "NO_PREVIOUS_SET_DEVICE") {
        return addressToSpatialEnabledMap_[preSettingSpatialAddress_].spatializationEnabled;
    }
    return spatializationStateFlag_.spatializationEnabled;
}

bool AudioSpatializationService::IsSpatializationEnabled(const std::string address)
{
    std::lock_guard<std::mutex> lock(spatializationServiceMutex_);
    std::string encryptedAddress = GetSha256EncryptAddress(address);
    CHECK_AND_RETURN_RET_LOG(addressToSpatialEnabledMap_.count(encryptedAddress), false,
        "specified address for set spatialization enabled is not in memory");
    return addressToSpatialEnabledMap_[encryptedAddress].spatializationEnabled;
}

int32_t AudioSpatializationService::SetSpatializationEnabled(const bool enable)
{
    AUDIO_INFO_LOG("Spatialization enabled is set to be: %{public}d", enable);
    std::lock_guard<std::mutex> lock(spatializationServiceMutex_);
    if (preSettingSpatialAddress_ != "NO_PREVIOUS_SET_DEVICE") {
        addressToSpatialEnabledMap_[preSettingSpatialAddress_].spatializationEnabled = enable;
        return SPATIALIZATION_SERVICE_OK;
    }
    if (spatializationStateFlag_.spatializationEnabled == enable) {
        return SPATIALIZATION_SERVICE_OK;
    }
    spatializationStateFlag_.spatializationEnabled = enable;
    HandleSpatializationEnabledChange(enable);
    if (UpdateSpatializationStateReal(false) != 0) {
        return ERROR;
    }
    WriteSpatializationStateToDb(WRITE_SPATIALIZATION_STATE);
    return SPATIALIZATION_SERVICE_OK;
}

int32_t AudioSpatializationService::SetSpatializationEnabled(const sptr<AudioDeviceDescriptor> &selectedAudioDevice,
    const bool enable)
{
    std::lock_guard<std::mutex> lock(spatializationServiceMutex_);
    std::string address = selectedAudioDevice->macAddress_;
    std::string encryptedAddress = GetSha256EncryptAddress(address);
    AUDIO_INFO_LOG("Device SpatializationEnabled is set to be: %{public}d", enable);
    preSettingSpatialAddress_ = encryptedAddress;
    if (addressToSpatialEnabledMap_.find(encryptedAddress) != addressToSpatialEnabledMap_.end() &&
        addressToSpatialEnabledMap_[encryptedAddress].spatializationEnabled == enable) {
        return SPATIALIZATION_SERVICE_OK;
    }
    addressToSpatialEnabledMap_[encryptedAddress].spatializationEnabled = enable;
    HandleSpatializationEnabledChange(selectedAudioDevice, enable);
    std::string deviceSpatialInfo = EncapsulateDeviceInfo(address);
    UpdateDeviceSpatialMapInfo(address, deviceSpatialInfo);
    if (UpdateSpatializationStateReal(false) != 0) {
        return ERROR;
    }
    WriteSpatializationStateToDb(WRITE_DEVICESPATIAL_INFO, address);
    return SPATIALIZATION_SERVICE_OK;
}

bool AudioSpatializationService::IsHeadTrackingEnabled()
{
    std::lock_guard<std::mutex> lock(spatializationServiceMutex_);
    if (preSettingSpatialAddress_ != "NO_PREVIOUS_SET_DEVICE") {
        return addressToSpatialEnabledMap_[preSettingSpatialAddress_].headTrackingEnabled;
    }
    return spatializationStateFlag_.headTrackingEnabled;
}

bool AudioSpatializationService::IsHeadTrackingEnabled(const std::string address)
{
    std::lock_guard<std::mutex> lock(spatializationServiceMutex_);
    std::string encryptedAddress = GetSha256EncryptAddress(address);
    CHECK_AND_RETURN_RET_LOG(addressToSpatialEnabledMap_.count(encryptedAddress), false,
        "specified address for set head tracking enabled is not in memory");
    return addressToSpatialEnabledMap_[encryptedAddress].headTrackingEnabled;
}

int32_t AudioSpatializationService::SetHeadTrackingEnabled(const bool enable)
{
    AUDIO_INFO_LOG("Head tracking enabled is set to be: %{public}d", enable);
    std::lock_guard<std::mutex> lock(spatializationServiceMutex_);
    if (preSettingSpatialAddress_ != "NO_PREVIOUS_SET_DEVICE") {
        addressToSpatialEnabledMap_[preSettingSpatialAddress_].headTrackingEnabled = enable;
        return SPATIALIZATION_SERVICE_OK;
    }
    if (spatializationStateFlag_.headTrackingEnabled == enable) {
        return SPATIALIZATION_SERVICE_OK;
    }
    spatializationStateFlag_.headTrackingEnabled = enable;
    HandleHeadTrackingEnabledChange(enable);
    if (UpdateSpatializationStateReal(false) != 0) {
        return ERROR;
    }
    WriteSpatializationStateToDb(WRITE_SPATIALIZATION_STATE);
    return SPATIALIZATION_SERVICE_OK;
}

int32_t AudioSpatializationService::SetHeadTrackingEnabled(const sptr<AudioDeviceDescriptor> &selectedAudioDevice,
    const bool enable)
{
    std::lock_guard<std::mutex> lock(spatializationServiceMutex_);
    std::string address = selectedAudioDevice->macAddress_;
    std::string encryptedAddress = GetSha256EncryptAddress(address);
    AUDIO_INFO_LOG("Device HeadTrackingEnabled is set to be: %{public}d", enable);
    preSettingSpatialAddress_ = encryptedAddress;
    if (addressToSpatialEnabledMap_.find(encryptedAddress) != addressToSpatialEnabledMap_.end() &&
        addressToSpatialEnabledMap_[encryptedAddress].headTrackingEnabled == enable) {
        return SPATIALIZATION_SERVICE_OK;
    }
    addressToSpatialEnabledMap_[encryptedAddress].headTrackingEnabled = enable;
    HandleHeadTrackingEnabledChange(selectedAudioDevice, enable);
    std::string deviceSpatialInfo = EncapsulateDeviceInfo(address);
    UpdateDeviceSpatialMapInfo(address, deviceSpatialInfo);
    if (UpdateSpatializationStateReal(false) != 0) {
        return ERROR;
    }
    WriteSpatializationStateToDb(WRITE_DEVICESPATIAL_INFO, address);
    return SPATIALIZATION_SERVICE_OK;
}

void AudioSpatializationService::HandleSpatializationEnabledChange(const bool &enabled)
{
    AUDIO_INFO_LOG("Spatialization enabled callback is triggered: state is %{public}d", enabled);
    if (audioPolicyServerHandler_ != nullptr) {
        audioPolicyServerHandler_->SendSpatializatonEnabledChangeEvent(enabled);
    }
}

void AudioSpatializationService::HandleSpatializationEnabledChange(const sptr<AudioDeviceDescriptor>
    &selectedAudioDevice, const bool &enabled)
{
    AUDIO_INFO_LOG("device Spatialization enabled callback is triggered: state is %{public}d", enabled);
    if (audioPolicyServerHandler_ != nullptr) {
        audioPolicyServerHandler_->SendSpatializatonEnabledChangeForAnyDeviceEvent(selectedAudioDevice, enabled);
    }
}

void AudioSpatializationService::HandleHeadTrackingEnabledChange(const bool &enabled)
{
    AUDIO_INFO_LOG("Head tracking enabled callback is triggered: state is %{public}d", enabled);
    if (audioPolicyServerHandler_ != nullptr) {
        audioPolicyServerHandler_->SendHeadTrackingEnabledChangeEvent(enabled);
    }
}

void AudioSpatializationService::HandleHeadTrackingEnabledChange(const sptr<AudioDeviceDescriptor> &selectedAudioDevice,
    const bool &enabled)
{
    AUDIO_INFO_LOG("device Head tracking enabled callback is triggered: state is %{public}d", enabled);
    if (audioPolicyServerHandler_ != nullptr) {
        audioPolicyServerHandler_->SendHeadTrackingEnabledChangeForAnyDeviceEvent(selectedAudioDevice, enabled);
    }
}

AudioSpatializationState AudioSpatializationService::GetSpatializationState(const StreamUsage streamUsage)
{
    std::lock_guard<std::mutex> lock(spatializationServiceMutex_);
    AudioSpatializationState spatializationState = {false, false};
    if (IsSpatializationSupportedUsage(streamUsage)) {
        spatializationState.spatializationEnabled = spatializationEnabledReal_;
        spatializationState.headTrackingEnabled = headTrackingEnabledReal_;
    }
    return spatializationState;
}

bool AudioSpatializationService::IsSpatializationSupported()
{
    return isSpatializationSupported_;
}

bool AudioSpatializationService::IsSpatializationSupportedForDevice(const std::string address)
{
    std::lock_guard<std::mutex> lock(spatializationSupportedMutex_);
    std::string encryptedAddress = GetSha256EncryptAddress(address);
    if (!addressToSpatialDeviceStateMap_.count(encryptedAddress)) {
        AUDIO_INFO_LOG("specified address for spatialization is not in memory");
        return false;
    }
    return addressToSpatialDeviceStateMap_[encryptedAddress].isSpatializationSupported;
}

bool AudioSpatializationService::IsHeadTrackingSupported()
{
    return isHeadTrackingSupported_;
}

bool AudioSpatializationService::IsHeadTrackingSupportedForDevice(const std::string address)
{
    std::lock_guard<std::mutex> lock(spatializationSupportedMutex_);
    std::string encryptedAddress = GetSha256EncryptAddress(address);
    if (!addressToSpatialDeviceStateMap_.count(encryptedAddress)) {
        AUDIO_INFO_LOG("specified address for head tracking is not in memory");
        return false;
    }
    return addressToSpatialDeviceStateMap_[encryptedAddress].isHeadTrackingSupported;
}

int32_t AudioSpatializationService::UpdateSpatialDeviceState(const AudioSpatialDeviceState audioSpatialDeviceState)
{
    AUDIO_INFO_LOG("UpdateSpatialDeviceState Entered, "
        "isSpatializationSupported = %{public}d, isHeadTrackingSupported = %{public}d",
        audioSpatialDeviceState.isSpatializationSupported, audioSpatialDeviceState.isHeadTrackingSupported);
    {
        std::string encryptedAddress = GetSha256EncryptAddress(audioSpatialDeviceState.address);
        std::lock_guard<std::mutex> lock(spatializationSupportedMutex_);
        if (addressToSpatialDeviceStateMap_.count(encryptedAddress) > 0 &&
            IsAudioSpatialDeviceStateEqual(addressToSpatialDeviceStateMap_[encryptedAddress],
            audioSpatialDeviceState)) {
            AUDIO_INFO_LOG("no need to UpdateSpatialDeviceState");
            return SPATIALIZATION_SERVICE_OK;
        }
        addressToSpatialDeviceStateMap_[encryptedAddress] = audioSpatialDeviceState;
    }

    AUDIO_INFO_LOG("currSpatialDeviceType_ = %{public}d,  nextSpatialDeviceType_ = %{public}d",
        currSpatialDeviceType_, audioSpatialDeviceState.spatialDeviceType);
    if (audioSpatialDeviceState.spatialDeviceType != currSpatialDeviceType_) {
        UpdateSpatialDeviceType(audioSpatialDeviceState.spatialDeviceType);
        currSpatialDeviceType_ = audioSpatialDeviceState.spatialDeviceType;
    }

    std::lock_guard<std::mutex> lock(spatializationServiceMutex_);
    if (UpdateSpatializationStateReal(false) != 0) {
        return ERROR;
    }
    return SPATIALIZATION_SERVICE_OK;
}

int32_t AudioSpatializationService::RegisterSpatializationStateEventListener(const uint32_t sessionID,
    const StreamUsage streamUsage, const sptr<IRemoteObject> &object)
{
    std::lock_guard<std::mutex> lock(spatializationStateChangeListnerMutex_);
    CHECK_AND_RETURN_RET_LOG(object != nullptr, ERR_INVALID_PARAM,
        "set spatialization state event listener object is nullptr");
    sptr<IStandardSpatializationStateChangeListener> listener =
        iface_cast<IStandardSpatializationStateChangeListener>(object);
    CHECK_AND_RETURN_RET_LOG(listener != nullptr, ERR_INVALID_PARAM, "spatialization state obj cast failed");

    std::shared_ptr<AudioSpatializationStateChangeCallback> callback =
        std::make_shared<AudioSpatializationStateChangeListenerCallback>(listener);
    CHECK_AND_RETURN_RET_LOG(callback != nullptr, ERR_INVALID_PARAM,
        "failed to create spatialization state cb obj");

    spatializationStateCBMap_[sessionID] = std::make_pair(callback, streamUsage);
    return SUCCESS;
}

int32_t AudioSpatializationService::UnregisterSpatializationStateEventListener(const uint32_t sessionID)
{
    std::lock_guard<std::mutex> lock(spatializationStateChangeListnerMutex_);
    spatializationStateCBMap_.erase(sessionID);
    return SUCCESS;
}

void AudioSpatializationService::UpdateCurrentDevice(const std::string macAddress)
{
    AUDIO_INFO_LOG("UpdateCurrentDevice Entered");
    std::lock_guard<std::mutex> lock(spatializationServiceMutex_);
    if (!macAddress.empty()) {
        std::string deviceSpatialInfo = EncapsulateDeviceInfo(macAddress);
        UpdateDeviceSpatialMapInfo(macAddress, deviceSpatialInfo);
        WriteSpatializationStateToDb(WRITE_DEVICESPATIAL_INFO, macAddress);
    }
    if (currentDeviceAddress_ == macAddress) {
        AUDIO_INFO_LOG("no need to UpdateCurrentDevice");
        return;
    }
    std::string preDeviceAddress = currentDeviceAddress_;
    currentDeviceAddress_ = macAddress;
    std::string currEncryptedAddress_ = GetSha256EncryptAddress(currentDeviceAddress_);
    if (addressToSpatialDeviceStateMap_.find(currEncryptedAddress_) != addressToSpatialDeviceStateMap_.end()) {
        auto nextSpatialDeviceType{ addressToSpatialDeviceStateMap_[currEncryptedAddress_].spatialDeviceType };
        AUDIO_INFO_LOG("currSpatialDeviceType_ = %{public}d,  nextSpatialDeviceType_ = %{public}d",
            currSpatialDeviceType_, nextSpatialDeviceType);
        if (nextSpatialDeviceType != currSpatialDeviceType_) {
            UpdateSpatialDeviceType(nextSpatialDeviceType);
            currSpatialDeviceType_ = nextSpatialDeviceType;
        }
    } else {
        AUDIO_INFO_LOG("currSpatialDeviceType_ = %{public}d,  nextSpatialDeviceType_ = %{public}d",
            currSpatialDeviceType_, EARPHONE_TYPE_NONE);
        if (currSpatialDeviceType_ != EARPHONE_TYPE_NONE) {
            UpdateSpatialDeviceType(EARPHONE_TYPE_NONE);
            currSpatialDeviceType_ = EARPHONE_TYPE_NONE;
        }
    }

    if (UpdateSpatializationStateReal(true, preDeviceAddress) != 0) {
        AUDIO_WARNING_LOG("UpdateSpatializationStateReal fail");
    }
}

AudioSpatializationSceneType AudioSpatializationService::GetSpatializationSceneType()
{
    std::lock_guard<std::mutex> lock(spatializationServiceMutex_);
    return spatializationSceneType_;
}

int32_t AudioSpatializationService::SetSpatializationSceneType(
    const AudioSpatializationSceneType spatializationSceneType)
{
    std::lock_guard<std::mutex> lock(spatializationServiceMutex_);
    AUDIO_INFO_LOG("spatialization scene type is set to be %{public}d", spatializationSceneType);
    spatializationSceneType_ = spatializationSceneType;
    int32_t ret = UpdateSpatializationSceneType();
    CHECK_AND_RETURN_RET_LOG(ret == SPATIALIZATION_SERVICE_OK, ret, "set spatialization scene type failed");
    WriteSpatializationStateToDb(WRITE_SPATIALIZATION_SCENE);
    return SPATIALIZATION_SERVICE_OK;
}

bool AudioSpatializationService::IsHeadTrackingDataRequested(const std::string &macAddress)
{
    std::lock_guard<std::mutex> lock(spatializationServiceMutex_);

    if (macAddress != currentDeviceAddress_) {
        return false;
    }

    return isHeadTrackingDataRequested_;
}

void AudioSpatializationService::UpdateRendererInfo(
    const std::vector<std::unique_ptr<AudioRendererChangeInfo>> &rendererChangeInfo)
{
    AUDIO_DEBUG_LOG("Start");
    {
        std::lock_guard<std::mutex> lock(rendererInfoChangingMutex_);
        AudioRendererInfoForSpatialization spatializationRendererInfo;

        spatializationRendererInfoList_.clear();
        for (const auto &it : rendererChangeInfo) {
            spatializationRendererInfo.rendererState = it->rendererState;
            spatializationRendererInfo.deviceMacAddress = it->outputDeviceInfo.macAddress;
            spatializationRendererInfo.streamUsage = it->rendererInfo.streamUsage;
            spatializationRendererInfoList_.push_back(spatializationRendererInfo);
        }
    }
    std::lock_guard<std::mutex> lock(spatializationServiceMutex_);
    UpdateHeadTrackingDeviceState(false);
}

int32_t AudioSpatializationService::UpdateSpatializationStateReal(bool outputDeviceChange, std::string preDeviceAddress)
{
    bool spatializationEnabled = false;
    bool headTrackingEnabled = false;
    std::string currEncryptedAddress_ = GetSha256EncryptAddress(currentDeviceAddress_);
    if (preSettingSpatialAddress_ == "NO_PREVIOUS_SET_DEVICE") {
        spatializationEnabled = spatializationStateFlag_.spatializationEnabled &&
            IsSpatializationSupported() && IsSpatializationSupportedForDevice(currentDeviceAddress_);
        headTrackingEnabled = spatializationStateFlag_.headTrackingEnabled && IsHeadTrackingSupported() &&
            IsHeadTrackingSupportedForDevice(currentDeviceAddress_) && spatializationEnabled;
    } else {
        spatializationEnabled = addressToSpatialEnabledMap_[currEncryptedAddress_].spatializationEnabled &&
            IsSpatializationSupported() && IsSpatializationSupportedForDevice(currentDeviceAddress_);
        headTrackingEnabled = addressToSpatialEnabledMap_[currEncryptedAddress_].headTrackingEnabled &&
            IsHeadTrackingSupported() && IsHeadTrackingSupportedForDevice(currentDeviceAddress_) &&
            spatializationEnabled;
    }

    if ((spatializationEnabledReal_ == spatializationEnabled) && (headTrackingEnabledReal_ == headTrackingEnabled)) {
        AUDIO_INFO_LOG("no need to update real spatialization state");
        UpdateHeadTrackingDeviceState(outputDeviceChange, preDeviceAddress);
        return SUCCESS;
    }
    spatializationEnabledReal_ = spatializationEnabled;
    headTrackingEnabledReal_ = headTrackingEnabled;
    if (UpdateSpatializationState() != 0) {
        return ERROR;
    }
    HandleSpatializationStateChange(outputDeviceChange);
    UpdateHeadTrackingDeviceState(outputDeviceChange, preDeviceAddress);
    return SPATIALIZATION_SERVICE_OK;
}

int32_t AudioSpatializationService::UpdateSpatializationState()
{
    const sptr<IStandardAudioService> gsp = GetAudioServerProxy();
    if (gsp == nullptr) {
        AUDIO_ERR_LOG("Service proxy unavailable: g_adProxy null");
        return -1;
    }
    AudioSpatializationState spatializationState = {spatializationEnabledReal_, headTrackingEnabledReal_};
    std::string identity = IPCSkeleton::ResetCallingIdentity();
    int32_t ret = gsp->UpdateSpatializationState(spatializationState);
    IPCSkeleton::SetCallingIdentity(identity);
    if (ret != 0) {
        AUDIO_WARNING_LOG("UpdateSpatializationState fail");
    }
    return SPATIALIZATION_SERVICE_OK;
}

int32_t AudioSpatializationService::UpdateSpatializationSceneType()
{
    const sptr<IStandardAudioService> gsp = GetAudioServerProxy();
    if (gsp == nullptr) {
        AUDIO_ERR_LOG("Service proxy unavailable: g_adProxy null");
        return -1;
    }
    std::string identity = IPCSkeleton::ResetCallingIdentity();
    int32_t ret = gsp->SetSpatializationSceneType(spatializationSceneType_);
    IPCSkeleton::SetCallingIdentity(identity);
    CHECK_AND_RETURN_RET_LOG(ret == SPATIALIZATION_SERVICE_OK, ret, "set spatialization scene type failed");
    return SPATIALIZATION_SERVICE_OK;
}

void AudioSpatializationService::UpdateDeviceSpatialInfo(const uint32_t deviceID, const std::string deviceSpatialInfo)
{
    std::stringstream ss(deviceSpatialInfo);
    std::string token;
    std::string address;
    std::getline(ss, address, '|');
    addressToDeviceSpatialInfoMap_[address] = deviceSpatialInfo;
    addressToDeviceIDMap_[address] = deviceID;
    std::getline(ss, token, '|');
    addressToSpatialEnabledMap_[address].spatializationEnabled = std::stoi(token);
    std::getline(ss, token, '|');
    addressToSpatialEnabledMap_[address].headTrackingEnabled = std::stoi(token);
    std::getline(ss, token, '|');
    addressToSpatialDeviceStateMap_[address].isSpatializationSupported = std::stoi(token);
    std::getline(ss, token, '|');
    addressToSpatialDeviceStateMap_[address].isHeadTrackingSupported = std::stoi(token);
    std::getline(ss, token, '|');
    addressToSpatialDeviceStateMap_[address].spatialDeviceType = static_cast<AudioSpatialDeviceType>(std::stoi(token));
}

void AudioSpatializationService::UpdateSpatialDeviceType(AudioSpatialDeviceType spatialDeviceType)
{
    const sptr<IStandardAudioService> gsp = GetAudioServerProxy();
    CHECK_AND_RETURN_LOG(gsp != nullptr, "Service proxy unavailable: g_adProxy null");

    std::string identity = IPCSkeleton::ResetCallingIdentity();
    int32_t ret = gsp->UpdateSpatialDeviceType(spatialDeviceType);
    IPCSkeleton::SetCallingIdentity(identity);
    CHECK_AND_RETURN_LOG(ret == 0, "AudioSpatializationService::UpdateSpatialDeviceType fail");

    return;
}

void AudioSpatializationService::HandleSpatializationStateChange(bool outputDeviceChange)
{
    AUDIO_INFO_LOG("Spatialization State callback is triggered");
    std::lock_guard<std::mutex> lock(spatializationStateChangeListnerMutex_);

    AudioSpatializationState spatializationState = {spatializationEnabledReal_, headTrackingEnabledReal_};
    AudioSpatializationState spatializationNotSupported = {false, false};
    std::unordered_map<uint32_t, bool> sessionIDToSpatializationEnabledMap;

    for (auto it = spatializationStateCBMap_.begin(); it != spatializationStateCBMap_.end(); ++it) {
        std::shared_ptr<AudioSpatializationStateChangeCallback> spatializationStateChangeCb = (it->second).first;
        if (spatializationStateChangeCb == nullptr) {
            AUDIO_ERR_LOG("spatializationStateChangeCb : nullptr for sessionID : %{public}d",
                static_cast<int32_t>(it->first));
            it = spatializationStateCBMap_.erase(it);
            continue;
        }
        if (!IsSpatializationSupportedUsage((it->second).second)) {
            if (!outputDeviceChange) {
                sessionIDToSpatializationEnabledMap.insert(std::make_pair(it->first, false));
            }
            spatializationStateChangeCb->OnSpatializationStateChange(spatializationNotSupported);
        } else {
            if (!outputDeviceChange) {
                sessionIDToSpatializationEnabledMap.insert(std::make_pair(it->first, spatializationEnabledReal_));
            }
            spatializationStateChangeCb->OnSpatializationStateChange(spatializationState);
        }
    }

    if (!outputDeviceChange) {
        AUDIO_INFO_LOG("notify offload entered");
        std::thread notifyOffloadThread = std::thread([=] () mutable {
            AudioPolicyService::GetAudioPolicyService().UpdateA2dpOffloadFlagBySpatialService(currentDeviceAddress_,
                sessionIDToSpatializationEnabledMap);
        });
        notifyOffloadThread.detach();
    }
}

void AudioSpatializationService::InitSpatializationState()
{
    std::lock_guard<std::mutex> lock(spatializationServiceMutex_);
    CHECK_AND_RETURN_LOG(!isLoadedfromDb_, "the spatialization values have already been loaded");
    int32_t pack = 0;
    int32_t sceneType = 0;
    std::string deviceSpatialInfo;

    AudioSettingProvider &settingProvider = AudioSettingProvider::GetInstance(AUDIO_POLICY_SERVICE_ID);
    ErrCode ret = settingProvider.GetIntValue(SPATIALIZATION_STATE_SETTINGKEY, pack);
    if (ret != SUCCESS) {
        AUDIO_WARNING_LOG("Failed to read spatialization_state from setting db! Err: %{public}d", ret);
        WriteSpatializationStateToDb(WRITE_SPATIALIZATION_STATE);
    } else {
        UnpackSpatializationState(pack, spatializationStateFlag_);
        UpdateSpatializationStateReal(false);
    }

    ret = settingProvider.GetIntValue(SPATIALIZATION_SCENE_SETTINGKEY, sceneType);
    if (ret != SUCCESS || sceneType < SPATIALIZATION_SCENE_TYPE_DEFAULT || sceneType > SPATIALIZATION_SCENE_TYPE_MAX) {
        AUDIO_WARNING_LOG("Failed to read spatialization_scene from setting db! Err: %{public}d", ret);
        WriteSpatializationStateToDb(WRITE_SPATIALIZATION_SCENE);
    } else {
        spatializationSceneType_ = static_cast<AudioSpatializationSceneType>(sceneType);
        UpdateSpatializationSceneType();
    }

    for (uint32_t i = 1; i <= MAX_DEVICE_NUM; ++i) {
        ret = settingProvider.GetStringValue(SPATIALIZATION_STATE_SETTINGKEY + "_device" + std::to_string(i),
            deviceSpatialInfo);
        if (ret != SUCCESS) {
            AUDIO_DEBUG_LOG("Failed to read spatialization_state_device%{public}d from setting db! Err: %{public}d",
                i, ret);
            break;
        }
        UpdateDeviceSpatialInfo(i, deviceSpatialInfo);
    }

    ret = settingProvider.GetStringValue(PRE_SETTING_SPATIAL_ADDRESS, preSettingSpatialAddress_);
    if (ret != SUCCESS) {
        AUDIO_WARNING_LOG("Failed to read pre_setting_spatial_address from setting db! Err: %{public}d", ret);
        preSettingSpatialAddress_ = "NO_PREVIOUS_SET_DEVICE";
    }
    UpdateSpatializationStateReal(false);
    isLoadedfromDb_ = true;
}

void AudioSpatializationService::WriteSpatializationStateToDb(WriteToDbOperation operation, const std::string address)
{
    AudioSettingProvider &settingProvider = AudioSettingProvider::GetInstance(AUDIO_POLICY_SERVICE_ID);
    switch (operation) {
        case WRITE_SPATIALIZATION_STATE: {
            ErrCode ret = settingProvider.PutIntValue(
                SPATIALIZATION_STATE_SETTINGKEY, PackSpatializationState(spatializationStateFlag_));
            CHECK_AND_RETURN_LOG(ret == SUCCESS, "Failed to write spatialization_state to setting db: %{public}d", ret);
            break;
        }
        case WRITE_SPATIALIZATION_SCENE: {
            ErrCode ret = settingProvider.PutIntValue(
                SPATIALIZATION_SCENE_SETTINGKEY, static_cast<uint32_t>(spatializationSceneType_));
            CHECK_AND_RETURN_LOG(ret == SUCCESS, "Failed to write spatialization_scene to setting db: %{public}d", ret);
            break;
        }
        case WRITE_DEVICESPATIAL_INFO: {
            std::string encryptedAddress = GetSha256EncryptAddress(address);
            uint32_t tmpID = addressToDeviceIDMap_[encryptedAddress];
            ErrCode ret = settingProvider.PutStringValue(SPATIALIZATION_STATE_SETTINGKEY + "_device" +
                std::to_string(tmpID), addressToDeviceSpatialInfoMap_[encryptedAddress]);
            CHECK_AND_RETURN_LOG(ret == SUCCESS, "Failed to write spatialization_state_device%{public}d to"
                "setting db: %{public}d", tmpID, ret);
            ret = settingProvider.PutStringValue(PRE_SETTING_SPATIAL_ADDRESS, preSettingSpatialAddress_);
            CHECK_AND_RETURN_LOG(ret == SUCCESS, "Failed to write pre_setting_spatial_address to"
                "setting db: %{public}d", ret);
            break;
        }
        default:
            break;
    }
}

bool AudioSpatializationService::IsHeadTrackingDataRequestedForCurrentDevice()
{
    std::lock_guard<std::mutex> lock(rendererInfoChangingMutex_);
    bool isStreamRunning = false;
    for (const auto &rendererInfo : spatializationRendererInfoList_) {
        if (rendererInfo.rendererState == RENDERER_RUNNING && rendererInfo.deviceMacAddress == currentDeviceAddress_ &&
            IsSpatializationSupportedUsage(rendererInfo.streamUsage)) {
            isStreamRunning = true;
            break;
        }
    }
    return (isStreamRunning && headTrackingEnabledReal_);
}

void AudioSpatializationService::UpdateHeadTrackingDeviceState(bool outputDeviceChange, std::string preDeviceAddress)
{
    std::unordered_map<std::string, bool> headTrackingDeviceChangeInfo;
    if (outputDeviceChange && !preDeviceAddress.empty() && isHeadTrackingDataRequested_) {
        headTrackingDeviceChangeInfo.insert(std::make_pair(preDeviceAddress, false));
    }

    bool isRequested = IsHeadTrackingDataRequestedForCurrentDevice();
    if (!currentDeviceAddress_.empty() &&
        ((!outputDeviceChange && (isHeadTrackingDataRequested_ != isRequested)) ||
        (outputDeviceChange && isRequested))) {
        headTrackingDeviceChangeInfo.insert(std::make_pair(currentDeviceAddress_, isRequested));
    }

    isHeadTrackingDataRequested_ = isRequested;

    HandleHeadTrackingDeviceChange(headTrackingDeviceChangeInfo);
}

void AudioSpatializationService::HandleHeadTrackingDeviceChange(const std::unordered_map<std::string, bool> &changeInfo)
{
    AUDIO_DEBUG_LOG("callback is triggered, change info size is %{public}zu", changeInfo.size());

    if (changeInfo.size() == 0) {
        return;
    }

    if (audioPolicyServerHandler_ != nullptr) {
        audioPolicyServerHandler_->SendHeadTrackingDeviceChangeEvent(changeInfo);
    }
}

std::string AudioSpatializationService::GetCurrentDeviceAddress() const
{
    return currentDeviceAddress_;
}

std::string AudioSpatializationService::GetCurrTimestamp()
{
    std::time_t now = std::time(nullptr);
    std::ostringstream oss;
    oss << now;
    return oss.str();
}

std::string AudioSpatializationService::GetSha256EncryptAddress(const std::string& address)
{
    const int32_t HexWidth = 2;
    unsigned char hash[SHA256_DIGEST_LENGTH];
    SHA256(reinterpret_cast<const unsigned char *>(address.c_str()), address.size(), hash);
    std::stringstream ss;
    for (int32_t i = 0; i < SHA256_DIGEST_LENGTH; ++i) {
        ss << std::hex << std::setw(HexWidth) << std::setfill('0') << (int32_t)hash[i];
    }
    return ss.str();
}

std::string AudioSpatializationService::ExtractTimestamp(const std::string deviceSpatialInfo)
{
    size_t pos = deviceSpatialInfo.rfind("|");
    if (pos != std::string::npos) {
        return deviceSpatialInfo.substr(pos + 1);
    }
    return "";
}

std::string AudioSpatializationService::EncapsulateDeviceInfo(const std::string address)
{
    std::stringstream value;
    std::string encryptedAddress = GetSha256EncryptAddress(address);
    value << encryptedAddress;
    value << "|" << addressToSpatialEnabledMap_[encryptedAddress].spatializationEnabled;
    value << "|" << addressToSpatialEnabledMap_[encryptedAddress].headTrackingEnabled;
    value << "|" << addressToSpatialDeviceStateMap_[encryptedAddress].isSpatializationSupported;
    value << "|" << addressToSpatialDeviceStateMap_[encryptedAddress].isHeadTrackingSupported;
    value << "|" << addressToSpatialDeviceStateMap_[encryptedAddress].spatialDeviceType;
    value << "|" << GetCurrTimestamp();
    return value.str();
}

std::string AudioSpatializationService::RemoveOldestDevice()
{
    std::string oldestAddr = "";
    std::string oldestTimestamp = "";
    for (const auto& entry : addressToDeviceSpatialInfoMap_) {
        std::string currTimestamp = ExtractTimestamp(entry.second);
        if (oldestTimestamp.empty() || std::stoul(currTimestamp) < std::stoul(oldestTimestamp)) {
            oldestTimestamp = currTimestamp;
            oldestAddr = entry.first;
        }
    }
    addressToDeviceSpatialInfoMap_.erase(oldestAddr);
    addressToSpatialEnabledMap_.erase(oldestAddr);
    addressToSpatialDeviceStateMap_.erase(oldestAddr);
    return oldestAddr;
}

void AudioSpatializationService::UpdateDeviceSpatialMapInfo(std::string address, std::string deviceSpatialInfo)
{
    std::string encryptedAddress = GetSha256EncryptAddress(address);
    if (!addressToDeviceSpatialInfoMap_.count(encryptedAddress)) {
        if (addressToDeviceSpatialInfoMap_.size() >= MAX_DEVICE_NUM) {
            std::string oldestAddr = RemoveOldestDevice();
            addressToDeviceIDMap_[encryptedAddress] = addressToDeviceIDMap_[oldestAddr];
        } else {
            addressToDeviceIDMap_[encryptedAddress] = addressToDeviceSpatialInfoMap_.size() + 1;
        }
    }
    addressToDeviceSpatialInfoMap_[encryptedAddress] = deviceSpatialInfo;
}
} // namespace AudioStandard
} // namespace OHOS