1 files changed, 66 insertions, 0 deletions
diff --git a/dom/media/webrtc/MediaEngine.h b/dom/media/webrtc/MediaEngine.h
new file mode 100644
index 0000000000..d3e1ece452
--- /dev/null
+++ b/dom/media/webrtc/MediaEngine.h
@@ -0,0 +1,66 @@
+/* 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/. */
+
+#ifndef MEDIAENGINE_H_
+#define MEDIAENGINE_H_
+
+#include "DOMMediaStream.h"
+#include "MediaEventSource.h"
+#include "MediaTrackGraph.h"
+#include "MediaTrackConstraints.h"
+#include "mozilla/dom/MediaStreamTrackBinding.h"
+#include "mozilla/dom/VideoStreamTrack.h"
+#include "mozilla/RefPtr.h"
+#include "mozilla/ThreadSafeWeakPtr.h"
+
+namespace mozilla {
+
+namespace dom {
+class Blob;
+}  // namespace dom
+
+class AllocationHandle;
+class MediaDevice;
+class MediaEngineSource;
+
+enum MediaSinkEnum {
+  Speaker,
+  Other,
+};
+
+enum { kVideoTrack = 1, kAudioTrack = 2, kTrackCount };
+
+class MediaEngine {
+ public:
+  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(MediaEngine)
+  NS_DECL_OWNINGEVENTTARGET
+
+  void AssertIsOnOwningThread() const { NS_ASSERT_OWNINGTHREAD(MediaEngine); }
+
+  /**
+   * Populate an array of sources of the requested type in the nsTArray.
+   * Also include devices that are currently unavailable.
+   */
+  virtual void EnumerateDevices(dom::MediaSourceEnum, MediaSinkEnum,
+                                nsTArray<RefPtr<MediaDevice>>*) = 0;
+
+  virtual void Shutdown() = 0;
+
+  virtual RefPtr<MediaEngineSource> CreateSource(
+      const MediaDevice* aDevice) = 0;
+
+  virtual MediaEventSource<void>& DeviceListChangeEvent() = 0;
+  /**
+   * Return true if devices returned from EnumerateDevices are emulated media
+   * devices.
+   */
+  virtual bool IsFake() const = 0;
+
+ protected:
+  virtual ~MediaEngine() = default;
+};
+
+}  // namespace mozilla
+
+#endif /* MEDIAENGINE_H_ */