Let clients interact with VideoCaptureDeviceClient instead of VideoCaptureDevice

services/video_capture/device_client_mojo_to_media_adapter.h

-// Copyright 2016 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#ifndef SERVICES_VIDEO_CAPTURE_DEVICE_CLIENT_MOJO_TO_MEDIA_ADAPTER_H_
-#define SERVICES_VIDEO_CAPTURE_DEVICE_CLIENT_MOJO_TO_MEDIA_ADAPTER_H_
-
-#include "media/capture/video/video_capture_device.h"
-#include "services/video_capture/public/interfaces/video_capture_device_client.mojom.h"
-
-namespace media {
-class MojoSharedBufferVideoFrame;
-}
-
-namespace video_capture {
-
-// Adapter that allows a mojom::VideoCaptureDeviceClient to be used in place of
-// a media::VideoCaptureDevice::Client.
-class DeviceClientMojoToMediaAdapter
-    : public media::VideoCaptureDevice::Client {
- public:
-  using VideoCaptureFormat = media::VideoCaptureFormat;
-  using VideoPixelFormat = media::VideoPixelFormat;
-  using VideoPixelStorage = media::VideoPixelStorage;
-  using VideoFrame = media::VideoFrame;
-
-  DeviceClientMojoToMediaAdapter(mojom::VideoCaptureDeviceClientPtr client);
-  ~DeviceClientMojoToMediaAdapter() override;
-
-  // media::VideoCaptureDevice::Client:
-  void OnIncomingCapturedData(const uint8_t* data,
-                              int length,
-                              const VideoCaptureFormat& frame_format,
-                              int clockwise_rotation,
-                              base::TimeTicks reference_time,
-                              base::TimeDelta timestamp) override;
-  std::unique_ptr<Buffer> ReserveOutputBuffer(
-      const gfx::Size& dimensions,
-      VideoPixelFormat format,
-      VideoPixelStorage storage) override;
-  void OnIncomingCapturedBuffer(std::unique_ptr<Buffer> buffer,
-                                const VideoCaptureFormat& frame_format,
-                                base::TimeTicks reference_time,
-                                base::TimeDelta timestamp) override;
-  void OnIncomingCapturedVideoFrame(
-      std::unique_ptr<Buffer> buffer,
-      const scoped_refptr<VideoFrame>& frame) override;
-  std::unique_ptr<Buffer> ResurrectLastOutputBuffer(
-      const gfx::Size& dimensions,
-      VideoPixelFormat format,
-      VideoPixelStorage storage) override;
-  void OnError(const tracked_objects::Location& from_here,
-               const std::string& reason) override;
-  double GetBufferPoolUtilization() const override;
-
- private:
-  mojom::VideoCaptureDeviceClientPtr client_;
-  // TODO(chfremer): Remove when actual implementation is finished.
-  // https://crbug.com/584797
-  scoped_refptr<media::MojoSharedBufferVideoFrame> dummy_frame_;
-};
-
-}  // namespace video_capture
-
-#endif  // SERVICES_VIDEO_CAPTURE_DEVICE_CLIENT_MOJO_TO_MEDIA_ADAPTER_H_