Support DFX for audio subsystem

Signed-off-by: Sulav Mulmi <sulav.mulmi@huawei.com>

bundle.json

@@ -17,6 +17,7 @@
         "adapted_system_type": [ "standard" ],
         "rom": "",
         "ram": "",
+        "hisysevent_config": [ "//foundation/multimedia/audio_standard/hisysevent.yaml" ],
         "deps": {
           "components": [
               "ability_manager",

frameworks/native/audioadapter/BUILD.gn

@@ -39,7 +39,10 @@ ohos_shared_library("pulse_audio_service_adapter") {
     "//utils/native/base:utils",
   ]
 
-  external_deps = [ "hiviewdfx_hilog_native:libhilog" ]
+  external_deps = [
+    "hisysevent_native:libhisysevent",
+    "hiviewdfx_hilog_native:libhilog",
+  ]
   part_name = "multimedia_audio_standard"
   subsystem_name = "multimedia"
 }

frameworks/native/audioadapter/include/audio_service_adapter.h

@@ -19,6 +19,7 @@
 #include <memory>
 #include <string>
 #include <unistd.h>
+#include <vector>
 
 #include "audio_info.h"
 
@@ -140,6 +141,20 @@ public:
      */
     virtual bool IsStreamActive(AudioStreamType streamType);
 
+    /**
+     * @brief returns the list of all sink inputs
+     *
+     * @return Returns : List of all sink inputs
+     */
+    virtual std::vector<SinkInput> GetAllSinkInputs() = 0;
+
+    /**
+     * @brief returns the list of all source outputs
+     *
+     * @return Returns : List of all source outputs
+     */
+    virtual std::vector<SourceOutput> GetAllSourceOutputs() = 0;
+
     /**
      * @brief Disconnects the connected audio server
      *

frameworks/native/audioadapter/include/pulse_audio_service_adapter_impl.h

@@ -19,6 +19,7 @@
 #include <mutex>
 
 #include <pulse/pulseaudio.h>
+#include <vector>
 
 #include "audio_service_adapter.h"
 
@@ -39,6 +40,8 @@ public:
     int32_t SuspendAudioDevice(std::string &audioPortName, bool isSuspend) override;
     bool IsMute(AudioStreamType streamType) override;
     bool IsStreamActive(AudioStreamType streamType) override;
+    std::vector<SinkInput> GetAllSinkInputs() override;
+    std::vector<SourceOutput> GetAllSourceOutputs() override;
     void Disconnect() override;
 
     // Static Member functions
@@ -49,6 +52,8 @@ public:
     static void PaGetSinkInputInfoMuteCb(pa_context *c, const pa_sink_input_info *i, int eol, void *userdata);
     static void PaGetSinkInputInfoMuteStatusCb(pa_context *c, const pa_sink_input_info *i, int eol, void *userdata);
     static void PaGetSinkInputInfoCorkStatusCb(pa_context *c, const pa_sink_input_info *i, int eol, void *userdata);
+    static void PaGetAllSinkInputsCb(pa_context *c, const pa_sink_input_info *i, int eol, void *userdata);
+    static void PaGetAllSourceOutputsCb(pa_context *c, const pa_source_output_info *i, int eol, void *userdata);
 private:
     struct UserData {
         PulseAudioServiceAdapterImpl *thiz;
@@ -57,6 +62,8 @@ private:
         bool mute;
         bool isCorked;
         uint32_t idx;
+        std::vector<SinkInput> sinkInputList;
+        std::vector<SourceOutput> sourceOutputList;
     };
 
     bool ConnectToPulseAudio();

frameworks/native/audioadapter/src/pulse_audio_service_adapter_impl.cpp

@@ -23,6 +23,7 @@
 
 #include "audio_errors.h"
 #include "audio_log.h"
+#include "hisysevent.h"
 
 using namespace std;
 
@@ -362,6 +363,70 @@ bool PulseAudioServiceAdapterImpl::IsStreamActive(AudioStreamType streamType)
     return (userData->isCorked) ? false : true;
 }
 
+vector<SinkInput> PulseAudioServiceAdapterImpl::GetAllSinkInputs()
+{
+    lock_guard<mutex> lock(mMutex);
+
+    unique_ptr<UserData> userData = make_unique<UserData>();
+    userData->thiz = this;
+
+    if (mContext == nullptr) {
+        AUDIO_ERR_LOG("[PulseAudioServiceAdapterImpl] GetAllSinkInputs mContext is nullptr");
+        return userData->sinkInputList;
+    }
+
+    pa_threaded_mainloop_lock(mMainLoop);
+
+    pa_operation *operation = pa_context_get_sink_input_info_list(mContext,
+        PulseAudioServiceAdapterImpl::PaGetAllSinkInputsCb, reinterpret_cast<void*>(userData.get()));
+    if (operation == nullptr) {
+        AUDIO_ERR_LOG("[GetAllSinkInputs] pa_context_get_sink_input_info_list returned nullptr");
+        pa_threaded_mainloop_unlock(mMainLoop);
+        return userData->sinkInputList;
+    }
+
+    while (pa_operation_get_state(operation) == PA_OPERATION_RUNNING) {
+        pa_threaded_mainloop_wait(mMainLoop);
+    }
+
+    pa_operation_unref(operation);
+    pa_threaded_mainloop_unlock(mMainLoop);
+
+    return userData->sinkInputList;
+}
+
+vector<SourceOutput> PulseAudioServiceAdapterImpl::GetAllSourceOutputs()
+{
+    lock_guard<mutex> lock(mMutex);
+
+    unique_ptr<UserData> userData = make_unique<UserData>();
+    userData->thiz = this;
+
+    if (mContext == nullptr) {
+        AUDIO_ERR_LOG("[PulseAudioServiceAdapterImpl] GetAllSourceOutputs mContext is nullptr");
+        return userData->sourceOutputList;
+    }
+
+    pa_threaded_mainloop_lock(mMainLoop);
+
+    pa_operation *operation = pa_context_get_source_output_info_list(mContext,
+        PulseAudioServiceAdapterImpl::PaGetAllSourceOutputsCb, reinterpret_cast<void*>(userData.get()));
+    if (operation == nullptr) {
+        AUDIO_ERR_LOG("[GetAllSourceOutputs] pa_context_get_source_output_info_list returned nullptr");
+        pa_threaded_mainloop_unlock(mMainLoop);
+        return userData->sourceOutputList;
+    }
+
+    while (pa_operation_get_state(operation) == PA_OPERATION_RUNNING) {
+        pa_threaded_mainloop_wait(mMainLoop);
+    }
+
+    pa_operation_unref(operation);
+    pa_threaded_mainloop_unlock(mMainLoop);
+
+    return userData->sourceOutputList;
+}
+
 void PulseAudioServiceAdapterImpl::Disconnect()
 {
     if (mContext != nullptr) {
@@ -613,6 +678,8 @@ void PulseAudioServiceAdapterImpl::PaGetSinkInputInfoVolumeCb(pa_context *c, con
     }
     AUDIO_INFO_LOG("[PulseAudioServiceAdapterImpl]volume : %{public}f for stream : %{public}s, volumeInt%{public}d",
         vol, i->name, volume);
+    HiviewDFX::HiSysEvent::Write("AUDIO", "AUDIO_VOLUME_CHANGE", HiviewDFX::HiSysEvent::EventType::BEHAVIOR,
+        "ISOUTPUT", 1, "STREAMID", sessionID, "STREAMTYPE", streamID, "VOLUME", vol);
 }
 
 void PulseAudioServiceAdapterImpl::PaGetSinkInputInfoCorkStatusCb(pa_context *c, const pa_sink_input_info *i, int eol,
@@ -651,6 +718,86 @@ void PulseAudioServiceAdapterImpl::PaGetSinkInputInfoCorkStatusCb(pa_context *c,
     }
 }
 
+void PulseAudioServiceAdapterImpl::PaGetAllSinkInputsCb(pa_context *c, const pa_sink_input_info *i, int eol,
+    void *userdata)
+{
+    UserData *userData = reinterpret_cast<UserData *>(userdata);
+    PulseAudioServiceAdapterImpl *thiz = userData->thiz;
+
+    if (eol < 0) {
+        AUDIO_ERR_LOG("[PulseAudioServiceAdapterImpl] Failed to get sink input information: %{public}s",
+            pa_strerror(pa_context_errno(c)));
+        return;
+    }
+
+    if (eol) {
+        pa_threaded_mainloop_signal(thiz->mMainLoop, 0);
+        return;
+    }
+
+    if (i->proplist == nullptr) {
+        AUDIO_ERR_LOG("[PulseAudioServiceAdapterImpl] Invalid Proplist for sink input (%{public}d).", i->index);
+        return;
+    }
+
+    uint32_t sessionID = 0;
+    const char *sessionCStr = pa_proplist_gets(i->proplist, "stream.sessionID");
+    if (sessionCStr != nullptr) {
+        std::stringstream sessionStr;
+        sessionStr << sessionCStr;
+        sessionStr >> sessionID;
+    }
+
+    AudioStreamType audioStreamType = STREAM_DEFAULT;
+    const char *streamType = pa_proplist_gets(i->proplist, "stream.type");
+    if (streamType != nullptr) {
+        audioStreamType = thiz->GetIdByStreamType(streamType);
+    }
+
+    SinkInput sinkInput = {sessionID, audioStreamType};
+    userData->sinkInputList.push_back(sinkInput);
+}
+
+void PulseAudioServiceAdapterImpl::PaGetAllSourceOutputsCb(pa_context *c, const pa_source_output_info *i, int eol,
+    void *userdata)
+{
+    UserData *userData = reinterpret_cast<UserData *>(userdata);
+    PulseAudioServiceAdapterImpl *thiz = userData->thiz;
+
+    if (eol < 0) {
+        AUDIO_ERR_LOG("[PulseAudioServiceAdapterImpl] Failed to get source output information: %{public}s",
+            pa_strerror(pa_context_errno(c)));
+        return;
+    }
+
+    if (eol) {
+        pa_threaded_mainloop_signal(thiz->mMainLoop, 0);
+        return;
+    }
+
+    if (i->proplist == nullptr) {
+        AUDIO_ERR_LOG("[PulseAudioServiceAdapterImpl] Invalid Proplist for source output (%{public}d).", i->index);
+        return;
+    }
+
+    uint32_t sessionID = 0;
+    const char *sessionCStr = pa_proplist_gets(i->proplist, "stream.sessionID");
+    if (sessionCStr != nullptr) {
+        std::stringstream sessionStr;
+        sessionStr << sessionCStr;
+        sessionStr >> sessionID;
+    }
+
+    AudioStreamType audioStreamType = STREAM_DEFAULT;
+    const char *streamType = pa_proplist_gets(i->proplist, "stream.type");
+    if (streamType != nullptr) {
+        audioStreamType = thiz->GetIdByStreamType(streamType);
+    }
+
+    SourceOutput sourceOutput = {sessionID, audioStreamType};
+    userData->sourceOutputList.push_back(sourceOutput);
+}
+
 void PulseAudioServiceAdapterImpl::PaSubscribeCb(pa_context *c, pa_subscription_event_type_t t, uint32_t idx,
     void *userdata)
 {

frameworks/native/audiocapturer/include/audio_capturer_source.h

@@ -66,6 +66,7 @@ public:
     int32_t GetMute(bool &isMute);
     int32_t SetAudioScene(AudioScene audioScene);
     int32_t OpenInput(DeviceType deviceType);
+    uint64_t GetTransactionId();
 
     static AudioCapturerSource *GetInstance(void);
     bool capturerInited_;

frameworks/native/audiocapturer/src/audio_capturer_source.cpp

@@ -459,6 +459,12 @@ int32_t AudioCapturerSource::SetAudioScene(AudioScene audioScene)
     return SUCCESS;
 }
 
+uint64_t AudioCapturerSource::GetTransactionId()
+{
+    AUDIO_INFO_LOG("AudioCapturerSource::GetTransactionId in");
+    return reinterpret_cast<uint64_t>(audioCapture_);
+}
+
 int32_t AudioCapturerSource::Stop(void)
 {
     int32_t ret;

frameworks/native/audiorenderer/include/audio_renderer_sink.h

@@ -51,6 +51,7 @@ public:
     int32_t GetLatency(uint32_t *latency);
     int32_t SetAudioScene(AudioScene audioScene);
     int32_t OpenOutput(DeviceType deviceType);
+    uint64_t GetTransactionId();
     static AudioRendererSink *GetInstance(void);
     bool rendererInited_;
 private:

frameworks/native/audiorenderer/include/bluetooth_renderer_sink.h

@@ -46,6 +46,7 @@ public:
     int32_t SetVolume(float left, float right);
     int32_t GetVolume(float &left, float &right);
     int32_t GetLatency(uint32_t *latency);
+    uint64_t GetTransactionId();
     static BluetoothRendererSink *GetInstance(void);
     bool rendererInited_;
 private:

frameworks/native/audiorenderer/src/audio_renderer_sink.cpp

@@ -474,6 +474,12 @@ int32_t AudioRendererSink::SetAudioScene(AudioScene audioScene)
     return SUCCESS;
 }
 
+uint64_t AudioRendererSink::GetTransactionId()
+{
+    AUDIO_INFO_LOG("AudioRendererSink::GetTransactionId in");
+    return reinterpret_cast<uint64_t>(audioRender_);
+}
+
 int32_t AudioRendererSink::Stop(void)
 {
     int32_t ret;

frameworks/native/audiorenderer/src/bluetooth_renderer_sink.cpp

@@ -392,6 +392,12 @@ int32_t BluetoothRendererSink::GetLatency(uint32_t *latency)
     }
 }
 
+uint64_t BluetoothRendererSink::GetTransactionId()
+{
+    AUDIO_INFO_LOG("BluetoothRendererSink::GetTransactionId in");
+    return reinterpret_cast<uint64_t>(audioRender_);
+}
+
 int32_t BluetoothRendererSink::Stop(void)
 {
     AUDIO_INFO_LOG("BluetoothRendererSink::Stop in");

hisysevent.yaml

@@ -0,0 +1,45 @@
+#  Copyright (c) 2022 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.
+
+domain: AUDIO
+
+AUDIO_DEVICE_CHANGE:
+  __BASE: {type: BEHAVIOR, level: MINOR, desc: audio output device}
+  ISOUTPUT: {type: INT32, desc: is output device}
+  STREAMID: {type: INT32, desc: stream id}
+  STREAMTYPE: {type: INT32, desc: stream type}
+  DEVICETYPE: {type: INT32, desc: device type}
+
+AUDIO_VOLUME_CHANGE:
+  __BASE: {type: BEHAVIOR, level: MINOR, desc: audio input device}
+  ISOUTPUT: {type: INT32, desc: output device}
+  STREAMID: {type: INT32, desc: stream id}
+  STREAMTYPE: {type: INT32, desc: stream type}
+  VOLUME: {type: FLOAT, desc: audio volume}
+
+AUDIO_STREAM_CHANGE:
+  __BASE: {type: BEHAVIOR, level: MINOR, desc: capturer state change}
+  ISOUTPUT: {type: INT32, desc: output device}
+  STREAMID: {type: INT32, desc: stream id}
+  UID: {type: INT32, desc: user id}
+  PID: {type: INT32, desc: process id}
+  TRANSACTIONID: {type: UINT64, desc: transaction id}
+  STREAMTYPE: {type: INT32, desc: stream type}
+  STATE: {type: INT32, desc: audio state}
+  DEVICETYPE: {type: INT32, desc: device type}
+
+AUDIO_HEADSET_CHANGE:
+  __BASE: {type: BEHAVIOR, level: MINOR, desc: headset connection state}
+  ISCONNECT: {type: INT32, desc: is plugged in}
+  HASMIC: {type: INT32, desc: mic available}
+  DEVICETYPE: {type: INT32, desc: device type}

interfaces/inner_api/native/audiocommon/include/audio_info.h

@@ -560,6 +560,16 @@ enum AudioCaptureMode {
     CAPTURE_MODE_CALLBACK
 };
 
+struct SinkInput {
+    int32_t streamId;
+    AudioStreamType streamType;
+};
+
+struct SourceOutput {
+    int32_t streamId;
+    AudioStreamType streamType;
+};
+
 typedef uint32_t AudioIOHandle;
 
 static inline bool FLOAT_COMPARE_EQ(const float& x, const float& y)

interfaces/inner_api/native/audiomanager/BUILD.gn

@@ -82,6 +82,7 @@ ohos_shared_library("audio_client") {
   ]
 
   external_deps = [
+    "hisysevent_native:libhisysevent",
     "hiviewdfx_hilog_native:libhilog",
     "ipc:ipc_core",
     "samgr_standard:samgr_proxy",

interfaces/inner_api/native/audiomanager/include/audio_system_manager.h

@@ -201,6 +201,7 @@ public:
     const std::string GetAudioParameter(const std::string key);
     void SetAudioParameter(const std::string &key, const std::string &value);
     const char *RetrieveCookie(int32_t &size);
+    uint64_t GetTransactionId(DeviceType deviceType, DeviceRole deviceRole);
     int32_t SetDeviceActive(ActiveDeviceType deviceType, bool flag) const;
     bool IsDeviceActive(ActiveDeviceType deviceType) const;
     bool IsStreamActive(AudioSystemManager::AudioVolumeType volumeType) const;

services/BUILD.gn

@@ -202,6 +202,7 @@ ohos_shared_library("audio_policy_service") {
 
   external_deps = [
     "access_token:libaccesstoken_sdk",
+    "hisysevent_native:libhisysevent",
     "hiviewdfx_hilog_native:libhilog",
     "input:libmmi-client",
     "ipc:ipc_core",

services/include/audio_manager_base.h

@@ -102,6 +102,16 @@ public:
      */
     virtual const char *RetrieveCookie(int32_t &size) = 0;
 
+    /**
+     * Get the transaction Id
+     *
+     * @return Returns transaction id.
+     */
+    virtual uint64_t GetTransactionId(DeviceType deviceType, DeviceRole deviceRole)
+    {
+        return 0;
+    }
+
     enum {
         GET_MAX_VOLUME = 0,
         GET_MIN_VOLUME = 1,
@@ -112,7 +122,8 @@ public:
         IS_MICROPHONE_MUTE = 6,
         SET_AUDIO_SCENE = 7,
         UPDATE_ROUTE_REQ = 8,
-        RETRIEVE_COOKIE = 9
+        RETRIEVE_COOKIE = 9,
+        GET_TRANSACTION_ID = 10
     };
 
 public:

services/include/audio_policy/server/service/audio_policy_service.h

@@ -131,6 +131,8 @@ private:
 
     void TriggerDeviceChangedCallback(const std::vector<sptr<AudioDeviceDescriptor>> &devChangeDesc, bool connection);
 
+    void WriteDeviceChangedSysEvents(const std::vector<sptr<AudioDeviceDescriptor>> &desc, bool isConnected);
+
     bool GetActiveDeviceStreamInfo(DeviceType deviceType, AudioStreamInfo &streamInfo);
 
     bool IsConfigurationUpdated(DeviceType deviceType, const AudioStreamInfo &streamInfo);

services/include/audio_policy/server/service/interface/iaudio_policy_interface.h

@@ -47,6 +47,10 @@ public:
 
     virtual bool IsStreamActive(AudioStreamType streamType) = 0;
 
+    virtual std::vector<SinkInput> GetAllSinkInputs() = 0;
+
+    virtual std::vector<SourceOutput> GetAllSourceOutputs() = 0;
+
     virtual AudioIOHandle OpenAudioPort(const AudioModuleInfo &audioPortInfo) = 0;
 
     virtual int32_t CloseAudioPort(AudioIOHandle ioHandle) = 0;

services/include/audio_policy/server/service/manager/audio_adapter_manager.h

@@ -63,6 +63,10 @@ public:
 
     bool IsStreamActive(AudioStreamType streamType);
 
+    std::vector<SinkInput> GetAllSinkInputs();
+
+    std::vector<SourceOutput> GetAllSourceOutputs();
+
     AudioIOHandle OpenAudioPort(const AudioModuleInfo &audioModuleInfo);
 
     int32_t CloseAudioPort(AudioIOHandle ioHandle);

services/include/audio_service/client/audio_manager_proxy.h

@@ -36,6 +36,7 @@ public:
     void SetAudioParameter(const std::string &key, const std::string &value) override;
     int32_t UpdateActiveDeviceRoute(DeviceType type, DeviceFlag flag) override;
     const char *RetrieveCookie(int32_t &size) override;
+    uint64_t GetTransactionId(DeviceType deviceType, DeviceRole deviceRole) override;
 private:
     static inline BrokerDelegator<AudioManagerProxy> delegator_;
 };

services/include/audio_service/client/audio_service_client.h

@@ -534,6 +534,7 @@ private:
 
     pa_cvolume cvolume;
     uint32_t streamIndex;
+    uint32_t sessionID;
     uint32_t volumeChannels;
     bool streamInfoUpdated;
 
@@ -591,6 +592,8 @@ private:
     void HandleRenderPositionCallbacks(size_t bytesWritten);
     void HandleCapturePositionCallbacks(size_t bytesRead);
 
+    void WriteStateChangedSysEvents();
+
     // Error code used
     static const int32_t AUDIO_CLIENT_SUCCESS = 0;
     static const int32_t AUDIO_CLIENT_ERR = -1;

services/include/audio_service/server/audio_server.h

@@ -47,6 +47,7 @@ public:
     void SetAudioParameter(const std::string &key, const std::string &value) override;
     const std::string GetAudioParameter(const std::string &key) override;
     const char *RetrieveCookie(int32_t &size) override;
+    uint64_t GetTransactionId(DeviceType deviceType, DeviceRole deviceRole) override;
     int32_t UpdateActiveDeviceRoute(DeviceType type, DeviceFlag flag) override;
 
 private:

services/src/audio_policy/server/service/audio_policy_service.cpp

@@ -18,6 +18,7 @@
 #include "audio_manager_base.h"
 #include "iservice_registry.h"
 #include "audio_log.h"
+#include "hisysevent.h"
 #include "system_ability_definition.h"
 
 #include "audio_policy_service.h"
@@ -793,12 +794,55 @@ InternalDeviceType AudioPolicyService::GetDeviceType(const std::string &deviceNa
     return devType;
 }
 
+void AudioPolicyService::WriteDeviceChangedSysEvents(const vector<sptr<AudioDeviceDescriptor>> &desc, bool isConnected)
+{
+    for (auto deviceDescriptor : desc) {
+        if (deviceDescriptor != nullptr) {
+            if (deviceDescriptor->deviceType_ == DEVICE_TYPE_WIRED_HEADSET) {
+                HiviewDFX::HiSysEvent::Write("AUDIO", "AUDIO_HEADSET_CHANGE",
+                    HiviewDFX::HiSysEvent::EventType::BEHAVIOR,
+                    "ISCONNECT", isConnected ? 1 : 0,
+                    "HASMIC", 1,
+                    "DEVICETYPE", DEVICE_TYPE_WIRED_HEADSET);
+            }
+
+            if (!isConnected) {
+                continue;
+            }
+
+            if (deviceDescriptor->deviceRole_ == OUTPUT_DEVICE) {
+                vector<SinkInput> sinkInputs = mAudioPolicyManager.GetAllSinkInputs();
+                for (SinkInput sinkInput : sinkInputs) {
+                    HiviewDFX::HiSysEvent::Write("AUDIO", "AUDIO_DEVICE_CHANGE",
+                        HiviewDFX::HiSysEvent::EventType::BEHAVIOR,
+                        "ISOUTPUT", 1,
+                        "STREAMID", sinkInput.streamId,
+                        "STREAMTYPE", sinkInput.streamType,
+                        "DEVICETYPE", deviceDescriptor->deviceType_);
+                }
+            } else if (deviceDescriptor->deviceRole_ == INPUT_DEVICE) {
+                vector<SourceOutput> sourceOutputs = mAudioPolicyManager.GetAllSourceOutputs();
+                for (SourceOutput sourceOutput : sourceOutputs) {
+                    HiviewDFX::HiSysEvent::Write("AUDIO", "AUDIO_DEVICE_CHANGE",
+                        HiviewDFX::HiSysEvent::EventType::BEHAVIOR,
+                        "ISOUTPUT", 0,
+                        "STREAMID", sourceOutput.streamId,
+                        "STREAMTYPE", sourceOutput.streamType,
+                        "DEVICETYPE", deviceDescriptor->deviceType_);
+                }
+            }
+        }
+    }
+}
+
 void AudioPolicyService::TriggerDeviceChangedCallback(const vector<sptr<AudioDeviceDescriptor>> &desc, bool isConnected)
 {
     DeviceChangeAction deviceChangeAction;
     deviceChangeAction.deviceDescriptors = desc;
     deviceChangeAction.type = isConnected ? DeviceChangeType::CONNECT : DeviceChangeType::DISCONNECT;
 
+    WriteDeviceChangedSysEvents(desc, isConnected);
+
     for (auto it = deviceChangeCallbackMap_.begin(); it != deviceChangeCallbackMap_.end(); ++it) {
         if (it->second) {
             it->second->OnDeviceChange(deviceChangeAction);

services/src/audio_policy/server/service/manager/audio_adapter_manager.cpp

@@ -21,6 +21,8 @@
 
 #include "audio_adapter_manager.h"
 
+using namespace std;
+
 namespace OHOS {
 namespace AudioStandard {
 bool AudioAdapterManager::Init()
@@ -134,6 +136,28 @@ bool AudioAdapterManager::IsStreamActive(AudioStreamType streamType)
     return mAudioServiceAdapter->IsStreamActive(streamType);
 }
 
+vector<SinkInput> AudioAdapterManager::GetAllSinkInputs()
+{
+    if (!mAudioServiceAdapter) {
+        AUDIO_ERR_LOG("[AudioAdapterManager] audio adapter null");
+        vector<SinkInput> sinkInputList;
+        return sinkInputList;
+    }
+
+    return mAudioServiceAdapter->GetAllSinkInputs();
+}
+
+vector<SourceOutput> AudioAdapterManager::GetAllSourceOutputs()
+{
+    if (!mAudioServiceAdapter) {
+        AUDIO_ERR_LOG("[AudioAdapterManager] audio adapter null");
+        vector<SourceOutput> sourceOutputList;
+        return sourceOutputList;
+    }
+
+    return mAudioServiceAdapter->GetAllSourceOutputs();
+}
+
 int32_t AudioAdapterManager::SuspendAudioDevice(std::string &portName, bool isSuspend)
 {
     if (!mAudioServiceAdapter) {

services/src/audio_service/client/audio_manager_proxy.cpp

@@ -205,6 +205,32 @@ const char *AudioManagerProxy::RetrieveCookie(int32_t &size)
     return cookieInfo;
 }
 
+uint64_t AudioManagerProxy::GetTransactionId(DeviceType deviceType, DeviceRole deviceRole)
+{
+    MessageParcel data;
+    MessageParcel reply;
+    MessageOption option;
+    uint32_t transactionId = 0;
+
+    if (!data.WriteInterfaceToken(GetDescriptor())) {
+        AUDIO_ERR_LOG("AudioManagerProxy: WriteInterfaceToken failed");
+        return transactionId;
+    }
+
+    data.WriteInt32(static_cast<int32_t>(deviceType));
+    data.WriteInt32(static_cast<int32_t>(deviceRole));
+
+    int32_t error = Remote()->SendRequest(GET_TRANSACTION_ID, data, reply, option);
+    if (error != ERR_NONE) {
+        AUDIO_ERR_LOG("get transaction id failed, error: %d", error);
+        return transactionId;
+    }
+
+    transactionId = reply.ReadUint64();
+
+    return transactionId;
+}
+
 int32_t AudioManagerProxy::UpdateActiveDeviceRoute(DeviceType type, DeviceFlag flag)
 {
     return ERR_NONE;

services/src/audio_service/client/audio_service_client.cpp

@@ -19,6 +19,7 @@
 
 #include "iservice_registry.h"
 #include "audio_log.h"
+#include "hisysevent.h"
 #include "securec.h"
 #include "system_ability_definition.h"
 #include "unistd.h"
@@ -147,6 +148,7 @@ void AudioServiceClient::PAStreamStartSuccessCb(pa_stream *stream, int32_t succe
     pa_threaded_mainloop *mainLoop = static_cast<pa_threaded_mainloop *>(asClient->mainLoop);
 
     asClient->state_ = RUNNING;
+    asClient->WriteStateChangedSysEvents();
     std::shared_ptr<AudioStreamCallback> streamCb = asClient->streamCallback_.lock();
     if (streamCb != nullptr) {
         streamCb->OnStateChange(asClient->state_);
@@ -166,6 +168,7 @@ void AudioServiceClient::PAStreamStopSuccessCb(pa_stream *stream, int32_t succes
     pa_threaded_mainloop *mainLoop = static_cast<pa_threaded_mainloop *>(asClient->mainLoop);
 
     asClient->state_ = STOPPED;
+    asClient->WriteStateChangedSysEvents();
     std::shared_ptr<AudioStreamCallback> streamCb = asClient->streamCallback_.lock();
     if (streamCb != nullptr) {
         streamCb->OnStateChange(asClient->state_);
@@ -185,6 +188,7 @@ void AudioServiceClient::PAStreamPauseSuccessCb(pa_stream *stream, int32_t succe
     pa_threaded_mainloop *mainLoop = static_cast<pa_threaded_mainloop *>(asClient->mainLoop);
 
     asClient->state_ = PAUSED;
+    asClient->WriteStateChangedSysEvents();
     std::shared_ptr<AudioStreamCallback> streamCb = asClient->streamCallback_.lock();
     if (streamCb != nullptr) {
         streamCb->OnStateChange(asClient->state_);
@@ -450,6 +454,7 @@ AudioServiceClient::AudioServiceClient()
     mAudioSystemMgr = nullptr;
 
     streamIndex = 0;
+    sessionID = 0;
     volumeChannels = STEREO;
     streamInfoUpdated = false;
 
@@ -946,6 +951,7 @@ int32_t AudioServiceClient::CreateStream(AudioStreamParams audioParams, AudioStr
     }
 
     state_ = PREPARED;
+    WriteStateChangedSysEvents();
     std::shared_ptr<AudioStreamCallback> streamCb = streamCallback_.lock();
     if (streamCb != nullptr) {
         streamCb->OnStateChange(state_);
@@ -1547,8 +1553,9 @@ int32_t AudioServiceClient::ReadStream(StreamBuffer &stream, bool isBlocking)
 
 int32_t AudioServiceClient::ReleaseStream()
 {
-    ResetPAAudioClient();
     state_ = RELEASED;
+    WriteStateChangedSysEvents();
+    ResetPAAudioClient();
 
     std::shared_ptr<AudioStreamCallback> streamCb = streamCallback_.lock();
     if (streamCb != nullptr) {
@@ -1964,8 +1971,17 @@ void AudioServiceClient::GetSinkInputInfoCb(pa_context *context, const pa_sink_i
         return;
     }
 
+    uint32_t sessionID = 0;
+    const char *sessionCStr = pa_proplist_gets(info->proplist, "stream.sessionID");
+    if (sessionCStr != nullptr) {
+        std::stringstream sessionStr;
+        sessionStr << sessionCStr;
+        sessionStr >> sessionID;
+    }
+
     thiz->cvolume = info->volume;
     thiz->streamIndex = info->index;
+    thiz->sessionID = sessionID;
     thiz->volumeChannels = info->channel_map.channels;
     thiz->streamInfoUpdated = true;
 
@@ -1992,6 +2008,11 @@ void AudioServiceClient::SetPaVolume(const AudioServiceClient &client)
     pa_operation_unref(pa_context_set_sink_input_volume(client.context, client.streamIndex, &cv, nullptr, nullptr));
 
     AUDIO_INFO_LOG("Applied volume : %{public}f, pa volume: %{public}d", vol, volume);
+    HiviewDFX::HiSysEvent::Write("AUDIO", "AUDIO_VOLUME_CHANGE", HiviewDFX::HiSysEvent::EventType::BEHAVIOR,
+        "ISOUTPUT", 1,
+        "STREAMID", client.sessionID,
+        "STREAMTYPE", client.mStreamType,
+        "VOLUME", vol);
 }
 
 int32_t AudioServiceClient::SetStreamRenderRate(AudioRendererRate audioRendererRate)
@@ -2042,5 +2063,34 @@ void AudioServiceClient::SaveStreamCallback(const std::weak_ptr<AudioStreamCallb
         streamCb->OnStateChange(state_);
     }
 }
+
+void AudioServiceClient::WriteStateChangedSysEvents()
+{
+    uint32_t sessionID = 0;
+    uint64_t transactionId = 0;
+    int32_t callingPid = getpid();
+    int32_t callingUid = getuid();
+
+    bool isOutput = true;
+    if (eAudioClientType == AUDIO_SERVICE_CLIENT_PLAYBACK) {
+        transactionId = mAudioSystemMgr->GetTransactionId(DEVICE_TYPE_SPEAKER, OUTPUT_DEVICE);
+    } else {
+        transactionId = mAudioSystemMgr->GetTransactionId(DEVICE_TYPE_MIC, INPUT_DEVICE);
+        isOutput = false;
+    }
+
+    GetSessionID(sessionID);
+
+    HiviewDFX::HiSysEvent::Write("AUDIO", "AUDIO_STREAM_CHANGE",
+        HiviewDFX::HiSysEvent::EventType::BEHAVIOR,
+        "ISOUTPUT", isOutput ? 1 : 0,
+        "STREAMID", sessionID,
+        "UID", callingUid,
+        "PID", callingPid,
+        "TRANSACTIONID", transactionId,
+        "STREAMTYPE", mStreamType,
+        "STATE", state_,
+        "DEVICETYPE", DEVICE_TYPE_INVALID);
+}
 } // namespace AudioStandard
 } // namespace OHOS

services/src/audio_service/client/audio_system_manager.cpp

@@ -239,6 +239,14 @@ const char *AudioSystemManager::RetrieveCookie(int32_t &size)
     return g_sProxy->RetrieveCookie(size);
 }
 
+uint64_t AudioSystemManager::GetTransactionId(DeviceType deviceType, DeviceRole deviceRole)
+{
+    if (!IsAlived()) {
+        CHECK_AND_RETURN_RET_LOG(g_sProxy != nullptr, 0, "GetTransactionId::Audio service unavailable");
+    }
+    return g_sProxy->GetTransactionId(deviceType, deviceRole);
+}
+
 int32_t AudioSystemManager::SetVolume(AudioSystemManager::AudioVolumeType volumeType, int32_t volume) const
 {
     AUDIO_DEBUG_LOG("AudioSystemManager SetVolume volumeType=%{public}d ", volumeType);

services/src/audio_service/server/audio_manager_stub.cpp

@@ -84,6 +84,16 @@ int AudioManagerStub::OnRemoteRequest(
 
             return AUDIO_OK;
         }
+        case GET_TRANSACTION_ID: {
+            AUDIO_DEBUG_LOG("GET_TRANSACTION_ID AudioManagerStub");
+            DeviceType deviceType = (static_cast<DeviceType>(data.ReadInt32()));
+            DeviceRole deviceRole = (static_cast<DeviceRole>(data.ReadInt32()));
+            uint64_t transactionId = GetTransactionId(deviceType, deviceRole);
+
+            reply.WriteUint64(transactionId);
+
+            return AUDIO_OK;
+        }
         case SET_MICROPHONE_MUTE: {
             AUDIO_DEBUG_LOG("SET_MICROPHONE_MUTE AudioManagerStub");
             bool isMute = data.ReadBool();

services/src/audio_service/server/audio_server.cpp

@@ -13,16 +13,18 @@
  * limitations under the License.
  */
 
+#include <cinttypes>
+#include <fstream>
+#include <sstream>
+
 #include "audio_capturer_source.h"
 #include "audio_errors.h"
 #include "audio_renderer_sink.h"
 #include "iservice_registry.h"
 #include "audio_log.h"
 #include "system_ability_definition.h"
-#include "audio_server.h"
 
-#include <fstream>
-#include <sstream>
+#include "audio_server.h"
 
 #define PA
 #ifdef PA
@@ -135,6 +137,27 @@ const char *AudioServer::RetrieveCookie(int32_t &size)
     return cookieInfo;
 }
 
+uint64_t AudioServer::GetTransactionId(DeviceType deviceType, DeviceRole deviceRole)
+{
+    uint64_t transactionId = 0;
+    AUDIO_INFO_LOG("GetTransactionId in: device type: %{public}d, device role: %{public}d", deviceType, deviceRole);
+
+    if (deviceRole == OUTPUT_DEVICE) {
+        AudioRendererSink *audioRendererSinkInstance = AudioRendererSink::GetInstance();
+        if (audioRendererSinkInstance) {
+            transactionId = audioRendererSinkInstance->GetTransactionId();
+        }
+    } else if (deviceRole == INPUT_DEVICE) {
+        AudioCapturerSource *audioCapturerSourceInstance = AudioCapturerSource::GetInstance();
+        if (audioCapturerSourceInstance) {
+            transactionId = audioCapturerSourceInstance->GetTransactionId();
+        }
+    }
+
+    AUDIO_INFO_LOG("Transaction Id: %{public}" PRIu64, transactionId);
+    return transactionId;
+}
+
 int32_t AudioServer::GetMaxVolume(AudioSystemManager::AudioVolumeType volumeType)
 {
     AUDIO_DEBUG_LOG("GetMaxVolume server");