diff --git a/api/source/mk_media.cpp b/api/source/mk_media.cpp
index 402546fa..67bcfe30 100755
--- a/api/source/mk_media.cpp
+++ b/api/source/mk_media.cpp
@@ -19,11 +19,10 @@ using namespace mediakit;
 class MediaHelper : public MediaSourceEvent , public std::enable_shared_from_this<MediaHelper> {
 public:
     using Ptr = std::shared_ptr<MediaHelper>;
-    template<typename ...ArgsType>
-    MediaHelper(ArgsType &&...args) {
+    MediaHelper(const char *vhost, const char *app, const char *stream, float duration, const ProtocolOption &option) {
         _poller = EventPollerPool::Instance().getPoller();
         // 在poller线程中创建DevChannel(MultiMediaSourceMuxer)对象，确保严格的线程安全限制
-        _poller->sync([&]() { _channel = std::make_shared<DevChannel>(std::forward<ArgsType>(args)...); });
+        _poller->sync([&]() { _channel = std::make_shared<DevChannel>(vhost, app, stream, duration, option); });
     }
 
     ~MediaHelper() = default;