[feat] add HarmonyOS desktop and mobile clients，issue #117

apps/harmony/native/media.h

@@ -0,0 +1,46 @@
+/*
+ * @Author: DI JUNKUN
+ * @Date: 2026-10-14
+ * Copyright (c) 2026 by DI JUNKUN, All Rights Reserved.
+ */
+
+#ifndef _MEDIA_H_
+#define _MEDIA_H_
+
+#include <minirtc.h>
+#include <atomic>
+#include <condition_variable>
+#include <cstdint>
+#include <deque>
+#include <functional>
+#include <mutex>
+#include <thread>
+#include <vector>
+
+namespace crossdesk::harmony {
+class Renderer {
+ public:
+  using Presented = std::function<void(const uint8_t*, int, int, uint64_t, uint64_t, uint64_t)>;
+  explicit Renderer(Presented presented = {});
+  ~Renderer();
+  void Surface(uint64_t id);
+  void Video(const MiniRtcVideoFrame& frame, uint64_t generation = 0);
+  void Clear();
+ private:
+  void Run();
+  std::mutex mutex_;
+  std::condition_variable ready_;
+  uint64_t surface_ = 0;
+  bool changed_ = false, stop_ = false;
+  int width_ = 0, height_ = 0;
+  std::vector<uint8_t> latest_;
+  uint64_t captured_ = 0, received_ = 0, generation_ = 0;
+  Presented presented_;
+  std::atomic<uint64_t> rendered_{0};
+  // Start only after all state used by Run() has been initialized.
+  std::thread thread_;
+};
+
+}
+
+#endif