diff --git a/src/decoder/dvpp/DvppSourceManager.cpp b/src/decoder/dvpp/DvppSourceManager.cpp
index c928e42..405d90f 100644
--- a/src/decoder/dvpp/DvppSourceManager.cpp
+++ b/src/decoder/dvpp/DvppSourceManager.cpp
@@ -7,43 +7,11 @@ using namespace std;
 
 DvppSourceManager::~DvppSourceManager()
 {
-    for(auto iter = ctxMap.begin(); iter != ctxMap.end(); iter++){
-        aclError ret = aclrtDestroyContext(iter->second);
-        if(ret != ACL_ERROR_NONE){
-            LOG_ERROR("aclrtDestroyContext failed !");
-            continue;
-        }
-    }
-    ctxMap.clear();
     channelMap.clear();
 
     // aclFinalize();
 }
 
-aclrtContext DvppSourceManager::getContext(int devId)
-{
-     aclrtContext ctx = ctxMap[devId];
-     if (ctx == nullptr)
-     {
-        // 初始化硬件解码器
-        aclError ret = aclrtSetDevice(devId);
-        if(ret != ACL_ERROR_NONE){
-            // cout << "aclrtSetDevice failed" << endl;
-            LOG_ERROR("aclrtSetDevice failed !");
-            return nullptr;
-        }
-
-        ret = aclrtCreateContext(&ctx, devId);
-        if (ret != ACL_ERROR_NONE) {
-            // cout << "aclrtCreateContext failed " << endl;
-            LOG_ERROR("aclrtCreateContext failed !");
-            return nullptr;
-        }
-        ctxMap[devId] = ctx;
-     }
-     return ctx;
-}
-
 int DvppSourceManager::getChannel(int devId){
     // channel 最大值暂定为32， 华为没有接口获取最大channel，只有文档说明
     for(int iChannel = 0; iChannel < 32; iChannel++){
diff --git a/src/decoder/dvpp/DvppSourceManager.h b/src/decoder/dvpp/DvppSourceManager.h
index 6320a46..9679f16 100644
--- a/src/decoder/dvpp/DvppSourceManager.h
+++ b/src/decoder/dvpp/DvppSourceManager.h
@@ -16,8 +16,6 @@ public:
 		return singleton;
 	}
 
-    aclrtContext getContext(int devId);
-
 	int getChannel(int devId);
 	void releaseChannel(int devId, int channel);
 
@@ -26,6 +24,5 @@ private:
 	~DvppSourceManager();
 
 private:
-    map<int, aclrtContext> ctxMap;
 	map<string, int> channelMap;
 };
\ No newline at end of file