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/* 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/. */
 * You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef MEDIAENGINE_H_
#define MEDIAENGINE_H_

#include "DOMMediaStream.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/dom/VideoStreamTrack.h"
#include "mozilla/RefPtr.h"
#include "mozilla/ThreadSafeWeakPtr.h"

namespace mozilla {


namespace dom {
class Blob;
}  // namespace dom

class AllocationHandle;
class AllocationHandle;
class MediaEngineSource;

enum MediaSinkEnum {
  Speaker,
  Other,
  Other,
};

enum { kVideoTrack = 1, kAudioTrack = 2, kTrackCount };

class MediaEngine {
class MediaEngine {
 public:
  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(MediaEngine)
  NS_DECL_OWNINGTHREAD
  NS_DECL_OWNINGTHREAD

  void AssertIsOnOwningThread() const { NS_ASSERT_OWNINGTHREAD(MediaEngine); }

  /**
   * Populate an array of sources of the requested type in the nsTArray.
   * Populate an array of sources of the requested type in the nsTArray.
   * Also include devices that are currently unavailable.
   */
  virtual void EnumerateDevices(uint64_t aWindowId, dom::MediaSourceEnum,
                                MediaSinkEnum,
                                nsTArray<RefPtr<MediaDevice>>*) = 0;
                                nsTArray<RefPtr<MediaDevice>>*) = 0;

  virtual void Shutdown() = 0;

  virtual void SetFakeDeviceChangeEventsEnabled(bool aEnable) {}


  virtual MediaEventSource<void>& DeviceListChangeEvent() = 0;

 protected:
  virtual ~MediaEngine() = default;
  virtual ~MediaEngine() = default;
};

}  // namespace mozilla

#endif /* MEDIAENGINE_H_ */
#endif /* MEDIAENGINE_H_ */