1 files changed, 52 insertions, 0 deletions
diff --git a/dom/media/systemservices/LoadManagerFactory.cpp b/dom/media/systemservices/LoadManagerFactory.cpp
new file mode 100644
index 000000000..be22a75fe
--- /dev/null
+++ b/dom/media/systemservices/LoadManagerFactory.cpp
@@ -0,0 +1,52 @@
+/* -*- Mode: C++; tab-width: 50; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "LoadManager.h"
+#include "LoadManagerFactory.h"
+#include "MainThreadUtils.h"
+#include "nsIObserverService.h"
+
+#include "mozilla/Preferences.h"
+
+namespace mozilla {
+
+// Assume stored in an nsAutoPtr<>
+LoadManager *
+LoadManagerBuild(void)
+{
+  return new LoadManager(LoadManagerSingleton::Get());
+}
+
+/* static */  LoadManagerSingleton*
+LoadManagerSingleton::Get() {
+  if (!sSingleton) {
+    MOZ_ASSERT(NS_IsMainThread());
+
+    bool loadEncoderOnly =
+      mozilla::Preferences::GetBool("media.navigator.load_adapt.encoder_only", true);
+    int loadMeasurementInterval =
+      mozilla::Preferences::GetInt("media.navigator.load_adapt.measure_interval", 1000);
+    int averagingSeconds =
+      mozilla::Preferences::GetInt("media.navigator.load_adapt.avg_seconds", 3);
+    float highLoadThreshold =
+      mozilla::Preferences::GetFloat("media.navigator.load_adapt.high_load", 0.90f);
+    float lowLoadThreshold =
+      mozilla::Preferences::GetFloat("media.navigator.load_adapt.low_load", 0.40f);
+
+    sSingleton = new LoadManagerSingleton(loadEncoderOnly,
+                                          loadMeasurementInterval,
+                                          averagingSeconds,
+                                          highLoadThreshold,
+                                          lowLoadThreshold);
+
+    nsCOMPtr<nsIObserverService> obs = services::GetObserverService();
+    if (obs) {
+      obs->AddObserver(sSingleton, "xpcom-shutdown", false);
+    }
+  }
+  return sSingleton;
+}
+
+}; // namespace