diff --git a/services/audio_engine/manager/include/hpae_manager.h b/services/audio_engine/manager/include/hpae_manager.h
index 95ac9654c1c8a5c5ffbaa61a107c8b757d500a3a..5670fd0770e25b8378af4a10680d7f44293ec363 100644
--- a/services/audio_engine/manager/include/hpae_manager.h
+++ b/services/audio_engine/manager/include/hpae_manager.h
@@ -194,6 +194,13 @@ public:
     void AddStreamVolumeToEffect(const std::string stringSessionID, const float streamVolume) override;
     void DeleteStreamVolumeToEffect(const std::string stringSessionID) override;
     uint64_t ProcessPendingTransitionsAndGetNextDelay();
+    // interfaces for injector
+    void UpdateAudioPortInfo(const uint32_t &sinkPortIndex, const AudioModuleInfo &audioPortInfo) override;
+    void AddCaptureInjector(
+        const uint32_t &sinkPortIndex, const uint32_t &sourcePortIndex, const SourceType &sourceType) override;
+    void RemoveCaptureInjector(
+        const uint32_t &sinkPortIndex, const uint32_t &sourcePortIndex, const SourceType &sourceType) override;
+    int32_t PeekAudioData(const uint32_t &sinkPortIndex, uint8_t *buffer, size_t bufferSize) override;
 private:
     int32_t CloseOutAudioPort(std::string sinkName);
     int32_t CloseInAudioPort(std::string sourceName);
diff --git a/services/audio_engine/manager/include/hpae_manager_impl.h b/services/audio_engine/manager/include/hpae_manager_impl.h
index 193003245b978a5dea75f3ee6cc37df1965331ba..b6a8fb5bb6a9f54ee754ad27a98eba27e0cc4f54 100644
--- a/services/audio_engine/manager/include/hpae_manager_impl.h
+++ b/services/audio_engine/manager/include/hpae_manager_impl.h
@@ -139,6 +139,14 @@ public:
     int32_t UpdateCollaborativeState(bool isCollaborationEnabled) override;
     void AddStreamVolumeToEffect(const std::string stringSessionID, const float streamVolume) override;
     void DeleteStreamVolumeToEffect(const std::string stringSessionID) override;
+
+    // interfaces for injector
+    void UpdateAudioPortInfo(const uint32_t &sinkPortIndex, const AudioModuleInfo &audioPortInfo) override;
+    void AddCaptureInjector(
+        const uint32_t &sinkPortIndex, const uint32_t &sourcePortIndex, const SourceType &sourceType) override;
+    void RemoveCaptureInjector(
+        const uint32_t &sinkPortIndex, const uint32_t &sourcePortIndex, const SourceType &sourceType) override;
+    int32_t PeekAudioData(const uint32_t &sinkPortIndex, uint8_t *buffer, size_t bufferSize) override;
 private:
     std::shared_ptr<HpaeManager> manager_;
 };
diff --git a/services/audio_engine/manager/include/i_hpae_manager.h b/services/audio_engine/manager/include/i_hpae_manager.h
index 3fa458db443c974be70ef1319c94c2f23b0e8c73..2035223a256bb6d3e97e408296f919d53996b6df 100644
--- a/services/audio_engine/manager/include/i_hpae_manager.h
+++ b/services/audio_engine/manager/include/i_hpae_manager.h
@@ -143,6 +143,14 @@ public:
     virtual int32_t UpdateCollaborativeState(bool isCollaborationEnabled) = 0;
     virtual void AddStreamVolumeToEffect(const std::string stringSessionID, const float streamVolume) = 0;
     virtual void DeleteStreamVolumeToEffect(const std::string stringSessionID) = 0;
+
+    // interfaces for injector
+    virtual void UpdateAudioPortInfo(const uint32_t &sinkPortIndex, const AudioModuleInfo &audioPortInfo) = 0;
+    virtual void AddCaptureInjector(
+        const uint32_t &sinkPortIndex, const uint32_t &sourcePortIndex, const SourceType &sourceType) = 0;
+    virtual void RemoveCaptureInjector(
+        const uint32_t &sinkPortIndex, const uint32_t &sourcePortIndex, const SourceType &sourceType) = 0;
+    virtual int32_t PeekAudioData(const uint32_t &sinkPortIndex, uint8_t *buffer, size_t bufferSize) = 0;
 };
 }  // namespace HPAE
 }  // namespace AudioStandard
diff --git a/services/audio_engine/manager/src/hpae_manager.cpp b/services/audio_engine/manager/src/hpae_manager.cpp
index c869cf6e28515d0e5ea2229530b812ef19c1be73..1b49efc11feeb8ba1a8d78224298818c4bdab660 100644
--- a/services/audio_engine/manager/src/hpae_manager.cpp
+++ b/services/audio_engine/manager/src/hpae_manager.cpp
@@ -2468,6 +2468,23 @@ void HpaeManager::DeleteStreamVolumeToEffect(const std::string stringSessionID)
     };
     SendRequest(request, __func__);
 }
+
+// interfaces for injector
+void HpaeManager::UpdateAudioPortInfo(const uint32_t &sinkPortIndex, const AudioModuleInfo &audioPortInfo)
+{}
+
+void HpaeManager::AddCaptureInjector(
+    const uint32_t &sinkPortIndex, const uint32_t &sourcePortIndex, const SourceType &sourceType)
+{}
+
+void HpaeManager::RemoveCaptureInjector(
+    const uint32_t &sinkPortIndex, const uint32_t &sourcePortIndex, const SourceType &sourceType)
+{}
+
+int32_t HpaeManager::PeekAudioData(const uint32_t &sinkPortIndex, uint8_t *buffer, size_t bufferSize)
+{
+    return SUCCESS;
+}
 }  // namespace HPAE
 }  // namespace AudioStandard
 }  // namespace OHOS
diff --git a/services/audio_engine/manager/src/hpae_manager_impl.cpp b/services/audio_engine/manager/src/hpae_manager_impl.cpp
index 60cc4f20b72c733e6537d3e9c017e77a98c9aa40..aaef1ca8da40eed45de75e3f37a62b76142c1ba2 100644
--- a/services/audio_engine/manager/src/hpae_manager_impl.cpp
+++ b/services/audio_engine/manager/src/hpae_manager_impl.cpp
@@ -588,6 +588,33 @@ void HpaeManagerImpl::DeleteStreamVolumeToEffect(const std::string stringSession
     CHECK_AND_RETURN_LOG(manager_, "manager is nullptr");
     manager_->DeleteStreamVolumeToEffect(stringSessionID);
 }
+
+// interfaces for injector
+void HpaeManagerImpl::UpdateAudioPortInfo(const uint32_t &sinkPortIndex, const AudioModuleInfo &audioPortInfo)
+{
+    CHECK_AND_RETURN_LOG(manager_, "manager is nullptr");
+    manager_->UpdateAudioPortInfo(sinkPortIndex, audioPortInfo);
+}
+
+void HpaeManagerImpl::AddCaptureInjector(
+    const uint32_t &sinkPortIndex, const uint32_t &sourcePortIndex, const SourceType &sourceType)
+{
+    CHECK_AND_RETURN_LOG(manager_, "manager is nullptr");
+    manager_->AddCaptureInjector(sinkPortIndex, sourcePortIndex, sourceType);
+}
+
+void HpaeManagerImpl::RemoveCaptureInjector(
+    const uint32_t &sinkPortIndex, const uint32_t &sourcePortIndex, const SourceType &sourceType)
+{
+    CHECK_AND_RETURN_LOG(manager_, "manager is nullptr");
+    manager_->RemoveCaptureInjector(sinkPortIndex, sourcePortIndex, sourceType);
+}
+
+int32_t HpaeManagerImpl::PeekAudioData(const uint32_t &sinkPortIndex, uint8_t *buffer, size_t bufferSize)
+{
+    CHECK_AND_RETURN_RET_LOG(manager_, ERR_ILLEGAL_STATE, "manager is nullptr");
+    return manager_->PeekAudioData(sinkPortIndex, buffer, bufferSize);
+}
 }  // namespace HPAE
 }  // namespace AudioStandard
 }  // namespace OHOS