/* 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 "MediaStreamGraph.h"

#include "MediaTrackConstraints.h"

#include "mozilla/dom/MediaStreamTrackBinding.h"

#include "mozilla/dom/VideoStreamTrack.h"

#include "mozilla/media/DeviceChangeCallback.h"

#include "mozilla/RefPtr.h"

#include "mozilla/ThreadSafeWeakPtr.h"

namespace mozilla {

namespace dom {

class Blob;

} // namespace dom

class AllocationHandle;

class MediaEngineSource;

enum MediaSinkEnum {

  Speaker,

  Other,

};

enum {

  kVideoTrack = 1,

  kAudioTrack = 2,

  kTrackCount

};

class MediaEngine : public DeviceChangeCallback

{

public:

  NS_INLINE_DECL_THREADSAFE_REFCOUNTING(MediaEngine)

  NS_DECL_OWNINGTHREAD

  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(uint64_t aWindowId,

                                dom::MediaSourceEnum,

                                MediaSinkEnum,

                                nsTArray<RefPtr<MediaDevice>>*) = 0;

  virtual void ReleaseResourcesForWindow(uint64_t aWindowId) = 0;

  virtual void Shutdown() = 0;

  virtual void SetFakeDeviceChangeEvents() {}

protected:

  virtual ~MediaEngine() {}

};

} // namespace mozilla

#endif /* MEDIAENGINE_H_ */