Reset delete live stream jpg as well (Reset buffer)

src/main.cpp

@@ -244,12 +244,25 @@ int main(int argc, char* argv[]) {
     }
 
     int reconnect_count = 0;
+    bool blank_live_frame = false;
 
     std::unordered_map<int, TrackedInfo> ayam_tracked;
     std::unordered_map<int, TrackedInfo> talenan_tracked;
     cv::Mat prev_gray;
 
     while (!shutdown_requested) {
+        {
+            std::string reset_file = g_config.shm_dir + "/.reset";
+            if (std::filesystem::exists(reset_file)) {
+                std::cout << "[" << now_str() << "] [RESET] .reset detected — clearing state" << std::endl;
+                std::error_code ec;
+                std::filesystem::remove(g_config.state_file, ec);
+                std::filesystem::remove(g_config.live_stream_frame_path, ec);
+                std::filesystem::remove(reset_file, ec);
+                blank_live_frame = true;
+            }
+        }
+
         cv::Mat frame;
         cap >> frame;
         if (frame.empty()) {
@@ -558,8 +571,13 @@ int main(int argc, char* argv[]) {
                 std::filesystem::path p(g_config.live_stream_frame_path);
                 if (p.has_parent_path())
                     std::filesystem::create_directories(p.parent_path());
+                cv::Mat out_frame = frame;
+                if (blank_live_frame) {
+                    out_frame = cv::Mat::zeros(frame.size(), frame.type());
+                    blank_live_frame = false;
+                }
                 std::vector<uint8_t> jpeg;
-                cv::imencode(".jpg", frame, jpeg,
+                cv::imencode(".jpg", out_frame, jpeg,
                     {cv::IMWRITE_JPEG_QUALITY, g_config.live_stream_quality});
                 std::ofstream f(g_config.live_stream_frame_path, std::ios::binary);
                 f.write(reinterpret_cast<const char*>(jpeg.data()), jpeg.size());