diff --git a/services/channel/include/dcamera_low_latency.h b/services/channel/include/dcamera_low_latency.h
index ce89428a70937a2e4e615c6c9b0be597588ece09..8e412446add157479233ef1ceb09af3fab2ee38f 100644
--- a/services/channel/include/dcamera_low_latency.h
+++ b/services/channel/include/dcamera_low_latency.h
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Copyright (c) 2022-2025 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
@@ -35,6 +35,8 @@ private:
 private:
     constexpr static int32_t REF_INITIAL = 0;
     constexpr static int32_t REF_NORMAL = 1;
+    const std::string DH_TYPE = "dh_type";
+    const std::string LOW_LATENCY_ENABLE = "low_latency_enable";
     std::shared_ptr<DistributedHardwareFwkKit> dHFwkKit_;
     std::mutex dHFwkKitMutex_;
     std::atomic<int> refCount_ = 0;
diff --git a/services/channel/src/dcamera_low_latency.cpp b/services/channel/src/dcamera_low_latency.cpp
index a528c1a78b43662daa1d02cf13afb325725c1a67..24e4824f5201b74f33fae0f3b86d75f6e6a2a453 100644
--- a/services/channel/src/dcamera_low_latency.cpp
+++ b/services/channel/src/dcamera_low_latency.cpp
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2022-2024 Huawei Device Co., Ltd.
+ * Copyright (c) 2022-2025 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
@@ -13,7 +13,6 @@
  * limitations under the License.
  */
 
-#include "constants.h"
 #include "dcamera_low_latency.h"
 #include "device_type.h"
 #include "distributed_camera_errno.h"