diff --git a/src/interface/x.h b/src/interface/x.h
index a9aa73f..5017a6b 100644
--- a/src/interface/x.h
+++ b/src/interface/x.h
@@ -73,6 +73,8 @@ typedef struct {
 
 DLLAPI PeerPtr* CreatePeer(const Params* params);
 
+DLLAPI void DestroyPeer(PeerPtr* peer_ptr);
+
 DLLAPI int Init(PeerPtr* peer_ptr, const char* user_id);
 
 DLLAPI int CreateConnection(PeerPtr* peer_ptr, const char* transmission_id,
diff --git a/src/pc/peer_connection.cpp b/src/pc/peer_connection.cpp
index 720df7f..239de7e 100644
--- a/src/pc/peer_connection.cpp
+++ b/src/pc/peer_connection.cpp
@@ -179,15 +179,15 @@ int PeerConnection::Init(PeerConnectionParams params,
 
   nv12_data_ = new char[1280 * 720 * 3 / 2];
 
-  if (0 != CreateVideoCodec(hardware_acceleration_)) {
-    LOG_ERROR("Create video codec failed");
-    return -1;
-  }
+  // if (0 != CreateVideoCodec(hardware_acceleration_)) {
+  //   LOG_ERROR("Create video codec failed");
+  //   return -1;
+  // }
 
-  if (0 != CreateAudioCodec()) {
-    LOG_ERROR("Create audio codec failed");
-    return -1;
-  }
+  // if (0 != CreateAudioCodec()) {
+  //   LOG_ERROR("Create audio codec failed");
+  //   return -1;
+  // }
 
   inited_ = true;
   return 0;
@@ -396,6 +396,14 @@ void PeerConnection::ProcessSignal(const std::string &signal) {
         }
         LOG_INFO("]");
 
+        if (0 != CreateVideoCodec(hardware_acceleration_)) {
+          LOG_ERROR("Create video codec failed");
+        }
+
+        if (0 != CreateAudioCodec()) {
+          LOG_ERROR("Create audio codec failed");
+        }
+
         for (auto &remote_user_id : user_id_list_) {
           // if (remote_user_id == user_id_) {
           //   continue;
@@ -455,6 +463,14 @@ void PeerConnection::ProcessSignal(const std::string &signal) {
         std::string remote_user_id = j["remote_user_id"].get<std::string>();
         LOG_INFO("[{}] receive offer from [{}]", user_id_, remote_user_id);
 
+        if (0 != CreateVideoCodec(hardware_acceleration_)) {
+          LOG_ERROR("Create video codec failed");
+        }
+
+        if (0 != CreateAudioCodec()) {
+          LOG_ERROR("Create audio codec failed");
+        }
+
         ice_transmission_list_[remote_user_id] =
             std::make_unique<IceTransmission>(false, transmission_id, user_id_,
                                               remote_user_id, ws_transport_,
@@ -529,7 +545,14 @@ int PeerConnection::RequestTransmissionMemberList(
   return 0;
 }
 
-int PeerConnection::Destroy() { return 0; }
+int PeerConnection::Destroy() {
+  ice_transmission_list_.clear();
+  if (nv12_data_) {
+    delete nv12_data_;
+    nv12_data_ = nullptr;
+  }
+  return 0;
+}
 
 SignalStatus PeerConnection::GetSignalStatus() {
   std::lock_guard<std::mutex> l(signal_status_mutex_);
diff --git a/src/rtc/x_inner.cpp b/src/rtc/x_inner.cpp
index a7bd350..1b75c73 100644
--- a/src/rtc/x_inner.cpp
+++ b/src/rtc/x_inner.cpp
@@ -39,6 +39,12 @@ PeerPtr *CreatePeer(const Params *params) {
   return peer_ptr;
 }
 
+void DestroyPeer(PeerPtr *peer_ptr) {
+  peer_ptr->peer_connection->Destroy();
+  delete peer_ptr;
+  peer_ptr = nullptr;
+}
+
 int Init(PeerPtr *peer_ptr, const char *user_id) {
   if (!peer_ptr) {
     LOG_ERROR("peer_ptr not created");