Dont copy pending mp4

src/video_writer.cpp

@@ -196,23 +196,31 @@ void VideoBatchWriter::shutdown() {
     if (writer_.isOpened()) {
         writer_.release();
     }
+
+    auto prev_state = state_;
     state_ = IDLE;
 
     if (!current_path_.empty()) {
         std::string src = current_path_;
-        std::string day_dir = output_dir_ + "/" + today_str();
-        ensure_dir(day_dir);
-        std::string dst = day_dir + "/" +
-            fs::path(current_path_).filename().string();
         current_path_.clear();
 
-        pid_t pid = fork();
-        if (pid == 0) {
-            close(STDIN_FILENO);
-            close(STDOUT_FILENO);
-            close(STDERR_FILENO);
-            copy_and_clean(src, dst);
-            _exit(0);
+        if (prev_state == CONFIRMED || prev_state == STOPPING) {
+            std::string day_dir = output_dir_ + "/" + today_str();
+            ensure_dir(day_dir);
+            std::string dst = day_dir + "/" +
+                fs::path(src).filename().string();
+
+            pid_t pid = fork();
+            if (pid == 0) {
+                close(STDIN_FILENO);
+                close(STDOUT_FILENO);
+                close(STDERR_FILENO);
+                copy_and_clean(src, dst);
+                _exit(0);
+            }
+        } else {
+            std::error_code ec;
+            fs::remove(src, ec);
         }
     }
 }