feat: Add streaming handlers for live TV proxying and VOD HLS transcoding using FFmpeg.

windows/flutter/ephemeral/cpp_client_wrapper/plugin_registrar.cc

@@ -0,0 +1,62 @@
+// Copyright 2013 The Flutter Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "include/flutter/plugin_registrar.h"
+
+#include <iostream>
+#include <map>
+
+#include "binary_messenger_impl.h"
+#include "include/flutter/engine_method_result.h"
+#include "include/flutter/method_channel.h"
+#include "texture_registrar_impl.h"
+
+namespace flutter {
+
+// ===== PluginRegistrar =====
+
+PluginRegistrar::PluginRegistrar(FlutterDesktopPluginRegistrarRef registrar)
+    : registrar_(registrar) {
+  auto core_messenger = FlutterDesktopPluginRegistrarGetMessenger(registrar_);
+  messenger_ = std::make_unique<BinaryMessengerImpl>(core_messenger);
+
+  auto texture_registrar =
+      FlutterDesktopRegistrarGetTextureRegistrar(registrar_);
+  texture_registrar_ =
+      std::make_unique<TextureRegistrarImpl>(texture_registrar);
+}
+
+PluginRegistrar::~PluginRegistrar() {
+  // This must always be the first call.
+  ClearPlugins();
+
+  // Explicitly cleared to facilitate testing of destruction order.
+  messenger_.reset();
+}
+
+void PluginRegistrar::AddPlugin(std::unique_ptr<Plugin> plugin) {
+  plugins_.insert(std::move(plugin));
+}
+
+void PluginRegistrar::ClearPlugins() {
+  plugins_.clear();
+}
+
+// ===== PluginRegistrarManager =====
+
+// static
+PluginRegistrarManager* PluginRegistrarManager::GetInstance() {
+  static PluginRegistrarManager* instance = new PluginRegistrarManager();
+  return instance;
+}
+
+PluginRegistrarManager::PluginRegistrarManager() = default;
+
+// static
+void PluginRegistrarManager::OnRegistrarDestroyed(
+    FlutterDesktopPluginRegistrarRef registrar) {
+  GetInstance()->registrars()->erase(registrar);
+}
+
+}  // namespace flutter