[WIP] Move media/capture to device/capture

media/capture/video/mac/video_capture_device_decklink_mac.h

-// Copyright 2014 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.
-
-// Implementation of VideoCaptureDevice class for Blackmagic video capture
-// devices by using the DeckLink SDK.
-
-#ifndef MEDIA_CAPTURE_VIDEO_MAC_VIDEO_CAPTURE_DEVICE_DECKLINK_MAC_H_
-#define MEDIA_CAPTURE_VIDEO_MAC_VIDEO_CAPTURE_DEVICE_DECKLINK_MAC_H_
-
-#include "media/capture/video/video_capture_device.h"
-
-#import <Foundation/Foundation.h>
-#include <stddef.h>
-#include <stdint.h>
-
-#include "base/macros.h"
-#include "base/synchronization/lock.h"
-#include "base/threading/thread_checker.h"
-
-namespace {
-class DeckLinkCaptureDelegate;
-}  // namespace
-
-namespace tracked_objects {
-class Location;
-}  // namespace tracked_objects
-
-namespace media {
-
-// Extension of VideoCaptureDevice to create and manipulate Blackmagic devices.
-// Creates a reference counted |decklink_capture_delegate_| that does all the
-// DeckLink SDK configuration and capture work while holding a weak reference to
-// us for sending back frames, logs and error messages.
-class CAPTURE_EXPORT VideoCaptureDeviceDeckLinkMac : public VideoCaptureDevice {
- public:
-  // Gets the names of all DeckLink video capture devices connected to this
-  // computer, as enumerated by the DeckLink SDK. To allow the user to choose
-  // exactly which capture format she wants, we enumerate as many cameras as
-  // capture formats.
-  static void EnumerateDevices(VideoCaptureDevice::Names* device_names);
-
-  // Gets the supported formats of a particular device attached to the system,
-  // identified by |device|. Formats are retrieved from the DeckLink SDK.
-  // Following the enumeration, each camera will have only one capability.
-  static void EnumerateDeviceCapabilities(
-      const VideoCaptureDevice::Name& device,
-      VideoCaptureFormats* supported_formats);
-
-  explicit VideoCaptureDeviceDeckLinkMac(const Name& device_name);
-  ~VideoCaptureDeviceDeckLinkMac() override;
-
-  // Copy of VideoCaptureDevice::Client::OnIncomingCapturedData(). Used by
-  // |decklink_capture_delegate_| to forward captured frames.
-  void OnIncomingCapturedData(const uint8_t* data,
-                              size_t length,
-                              const VideoCaptureFormat& frame_format,
-                              int rotation,  // Clockwise.
-                              base::TimeTicks reference_time,
-                              base::TimeDelta timestamp);
-
-  // Forwarder to VideoCaptureDevice::Client::OnError().
-  void SendErrorString(const tracked_objects::Location& from_here,
-                       const std::string& reason);
-
-  // Forwarder to VideoCaptureDevice::Client::OnLog().
-  void SendLogString(const std::string& message);
-
- private:
-  // VideoCaptureDevice implementation.
-  void AllocateAndStart(
-      const VideoCaptureParams& params,
-      std::unique_ptr<VideoCaptureDevice::Client> client) override;
-  void StopAndDeAllocate() override;
-
-  // Protects concurrent setting and using of |client_|.
-  base::Lock lock_;
-  std::unique_ptr<VideoCaptureDevice::Client> client_;
-
-  // Reference counted handle to the DeckLink capture delegate, ref counted by
-  // the DeckLink SDK as well.
-  scoped_refptr<DeckLinkCaptureDelegate> decklink_capture_delegate_;
-
-  // Checks for Device (a.k.a. Audio) thread.
-  base::ThreadChecker thread_checker_;
-
-  DISALLOW_COPY_AND_ASSIGN(VideoCaptureDeviceDeckLinkMac);
-};
-
-}  // namespace media
-
-#endif  // MEDIA_CAPTURE_VIDEO_MAC_VIDEO_CAPTURE_DEVICE_DECKLINK_MAC_H_