[fix] update minirtc feedback handling

src/config_center/config_center.cpp

@@ -29,7 +29,11 @@ int ConfigCenter::Load() {
     return -1;
   }
 
-  bool persist_turn_mode_migration = false;
+  bool persist_config_migration = false;
+  persist_config_migration |= ini_.Delete(section_, "video_content_type");
+  persist_config_migration |= ini_.Delete(section_, "screen_content");
+  persist_config_migration |=
+      ini_.Delete(section_, "enable_desktop_quality_optimization");
 
   const long language_value =
       ini_.GetLongValue(section_, "language", static_cast<long>(language_));
@@ -52,7 +56,6 @@ int ConfigCenter::Load() {
 
   hardware_video_codec_ = ini_.GetBoolValue(section_, "hardware_video_codec",
                                             hardware_video_codec_);
-
   const char* turn_mode_value = ini_.GetValue(section_, "turn_mode", nullptr);
   if (turn_mode_value != nullptr && strlen(turn_mode_value) > 0) {
     const long parsed_turn_mode = ini_.GetLongValue(
@@ -70,7 +73,7 @@ int ConfigCenter::Load() {
     turn_mode_ = legacy_enable_turn ? TURN_MODE::AUTO_UDP_TCP
                                     : TURN_MODE::DISABLED;
     ini_.SetLongValue(section_, "turn_mode", static_cast<long>(turn_mode_));
-    persist_turn_mode_migration = true;
+    persist_config_migration = true;
   }
   enable_srtp_ = ini_.GetBoolValue(section_, "enable_srtp", enable_srtp_);
   enable_self_hosted_ =
@@ -121,8 +124,7 @@ int ConfigCenter::Load() {
     file_transfer_save_path_ = "";
   }
 
-  if (persist_turn_mode_migration &&
-      ini_.SaveFile(config_path_.c_str()) < 0) {
+  if (persist_config_migration && ini_.SaveFile(config_path_.c_str()) < 0) {
     return -1;
   }
 

src/gui/features/devices/session_device_manager.cpp

@@ -60,6 +60,26 @@ int SessionDeviceManager::InitializeScreenCapturer() {
           return;
         }
 
+        std::vector<std::string> connected_remote_ids;
+        {
+          std::shared_lock lock(owner_.connection_status_mutex_);
+          connected_remote_ids.reserve(owner_.connection_status_.size());
+          for (const auto &[remote_id, status] : owner_.connection_status_) {
+            if (status == ConnectionStatus::Connected) {
+              connected_remote_ids.push_back(remote_id);
+            }
+          }
+        }
+
+        // Capture can still deliver frames while ICE is gathering or after
+        // the final controller disconnects. Do not broadcast those frames to
+        // MiniRTC: a broadcast also reaches newly joining peers whose ICE
+        // transport is not ready yet.
+        if (connected_remote_ids.empty()) {
+          last_frame_time_ = now_time;
+          return;
+        }
+
         const std::string stream_id = display_name ? display_name : "";
         const bool resumed_after_gap =
             last_frame_time_ != 0 && duration >= kCaptureResumeKeyFrameGapMs;
@@ -79,7 +99,10 @@ int SessionDeviceManager::InitializeScreenCapturer() {
         frame.width = width;
         frame.height = height;
         frame.captured_timestamp = GetSystemTimeMicros(owner_.peer_);
-        SendVideoFrame(owner_.peer_, &frame, stream_id.c_str());
+        for (const std::string &remote_id : connected_remote_ids) {
+          SendVideoFrameToPeer(owner_.peer_, &frame, stream_id.c_str(),
+                               remote_id.data(), remote_id.size());
+        }
         last_video_frame_stream_id_ = stream_id;
         last_frame_time_ = now_time;
       });

src/gui/runtime/gui_runtime.cpp

@@ -111,8 +111,14 @@ int GuiRuntime::CreateConnectionPeer() {
                              : false;
   params_.turn_mode = static_cast<TurnMode>(config_center_->GetTurnMode());
   params_.enable_srtp = config_center_->IsEnableSrtp();
+  params_.video_content_type = VideoContentType::ScreenContent;
   params_.video_quality =
       static_cast<VideoQuality>(config_center_->GetVideoQuality());
+  params_.video_frame_rate =
+      config_center_->GetVideoFrameRate() ==
+              ConfigCenter::VIDEO_FRAME_RATE::FPS_30
+          ? 30
+          : 60;
   params_.on_receive_video_buffer = nullptr;
   params_.on_receive_audio_buffer = PeerEventHandler::OnReceiveAudioBuffer;
   params_.on_receive_data_buffer = PeerEventHandler::OnReceiveDataBuffer;

src/screen_capturer/macosx/screen_capturer_sck_impl.mm

@@ -335,7 +335,7 @@ int ScreenCapturerSckImpl::SwitchTo(int monitor_index) {
 }
 
 int ScreenCapturerSckImpl::ResetToInitialMonitor() {
-  int target = initial_monitor_index_;
+  const int target = initial_monitor_index_;
   if (display_info_list_.empty()) return -1;
   auto display_it = display_id_map_.find(target);
   if (display_it == display_id_map_.end()) {
@@ -343,13 +343,20 @@ int ScreenCapturerSckImpl::ResetToInitialMonitor() {
     return -1;
   }
 
-  CGDirectDisplayID target_display = display_it->second;
-  if (current_display_ == target_display) return 0;
+  const CGDirectDisplayID target_display = display_it->second;
+  bool should_reconfigure = false;
   {
     std::lock_guard<std::mutex> lock(lock_);
+    if (current_display_ == target_display) return 0;
     current_display_ = target_display;
+    should_reconfigure = stream_ != nil;
   }
+
+  // Resetting session state must not create a capture stream. Preserve the
+  // selected monitor for the next Start(), and only reconfigure an active one.
+  if (should_reconfigure) {
     StartOrReconfigureCapturer();
+  }
   return 0;
 }