video_capture_fake.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=2 et sw=2 tw=80: */

/* 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 DOM_MEDIA_SYSTEMSERVICES_FAKE_VIDEO_CAPTURE_VIDEO_CAPTURE_FAKE_H_

#define DOM_MEDIA_SYSTEMSERVICES_FAKE_VIDEO_CAPTURE_VIDEO_CAPTURE_FAKE_H_

#include "MediaEventSource.h"

#include "modules/video_capture/video_capture_impl.h"

#include "mozilla/Maybe.h"

#include "mozilla/RefPtr.h"

#include "mozilla/ThreadSafety.h"

#include "mozilla/TimeStamp.h"

class nsISerialEventTarget;

namespace mozilla {

class FakeVideoSource;

namespace layers {

class Image;

}  // namespace mozilla

namespace webrtc::videocapturemodule {

class VideoCaptureFake : public webrtc::videocapturemodule::VideoCaptureImpl {

 public:

  explicit VideoCaptureFake(nsISerialEventTarget* aTarget);

  ~VideoCaptureFake() override;

  static webrtc::scoped_refptr<webrtc::VideoCaptureModule> Create(

      nsISerialEventTarget* aTarget);

  // Implementation of VideoCaptureImpl.

  // Starts capturing synchronously. Idempotent. If an existing capture is live

  // and another capability is requested we'll restart the underlying backend

  // with the new capability.

  int32_t StartCapture(const VideoCaptureCapability& aCapability)

      MOZ_EXCLUDES(api_lock_) override;

  // Stops capturing synchronously. Idempotent.

  int32_t StopCapture() MOZ_EXCLUDES(api_lock_) override;

  bool CaptureStarted() MOZ_EXCLUDES(api_lock_) override;

  int32_t CaptureSettings(VideoCaptureCapability& aSettings) override;

  void SetTrackingId(uint32_t aTrackingIdProcId)

      MOZ_EXCLUDES(api_lock_) override;

 private:

  void OnGeneratedImage(const RefPtr<mozilla::layers::Image>& aImage,

                        mozilla::TimeStamp aTime);

  const nsCOMPtr<nsISerialEventTarget> mTarget;

  const RefPtr<mozilla::FakeVideoSource> mSource;

  mozilla::Maybe<mozilla::TimeStamp> mStart;

  mozilla::MediaEventListener mGeneratedImageListener;

};

}  // namespace webrtc::videocapturemodule

#endif