[WIP] Move media/capture to device/capture

media/capture/video/win/video_capture_device_win.h

-// Copyright (c) 2012 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.
-
-// Windows specific implementation of VideoCaptureDevice. DirectShow is used for
-// capturing. DirectShow provide its own threads for capturing.
-
-#ifndef MEDIA_CAPTURE_VIDEO_WIN_VIDEO_CAPTURE_DEVICE_WIN_H_
-#define MEDIA_CAPTURE_VIDEO_WIN_VIDEO_CAPTURE_DEVICE_WIN_H_
-
-// Avoid including strsafe.h via dshow as it will cause build warnings.
-#define NO_DSHOW_STRSAFE
-#include <dshow.h>
-#include <stdint.h>
-
-#include <map>
-#include <string>
-
-#include "base/macros.h"
-#include "base/threading/thread_checker.h"
-#include "base/win/scoped_comptr.h"
-#include "media/base/video_capture_types.h"
-#include "media/capture/video/video_capture_device.h"
-#include "media/capture/video/win/capability_list_win.h"
-#include "media/capture/video/win/sink_filter_win.h"
-#include "media/capture/video/win/sink_input_pin_win.h"
-
-namespace tracked_objects {
-class Location;
-}  // namespace tracked_objects
-
-namespace media {
-
-// All the methods in the class can only be run on a COM initialized thread.
-class VideoCaptureDeviceWin : public VideoCaptureDevice,
-                              public SinkFilterObserver {
- public:
-  // A utility class that wraps the AM_MEDIA_TYPE type and guarantees that
-  // we free the structure when exiting the scope.  DCHECKing is also done to
-  // avoid memory leaks.
-  class ScopedMediaType {
-   public:
-    ScopedMediaType() : media_type_(NULL) {}
-    ~ScopedMediaType() { Free(); }
-
-    AM_MEDIA_TYPE* operator->() { return media_type_; }
-    AM_MEDIA_TYPE* get() { return media_type_; }
-    void Free();
-    AM_MEDIA_TYPE** Receive();
-
-   private:
-    void FreeMediaType(AM_MEDIA_TYPE* mt);
-    void DeleteMediaType(AM_MEDIA_TYPE* mt);
-
-    AM_MEDIA_TYPE* media_type_;
-  };
-
-  static HRESULT GetDeviceFilter(const std::string& device_id,
-                                 IBaseFilter** filter);
-  static base::win::ScopedComPtr<IPin> GetPin(IBaseFilter* filter,
-                                              PIN_DIRECTION pin_dir,
-                                              REFGUID category,
-                                              REFGUID major_type);
-  static VideoPixelFormat TranslateMediaSubtypeToPixelFormat(
-      const GUID& sub_type);
-
-  explicit VideoCaptureDeviceWin(const Name& device_name);
-  ~VideoCaptureDeviceWin() override;
-  // Opens the device driver for this device.
-  bool Init();
-
-  // VideoCaptureDevice implementation.
-  void AllocateAndStart(
-      const VideoCaptureParams& params,
-      std::unique_ptr<VideoCaptureDevice::Client> client) override;
-  void StopAndDeAllocate() override;
-
- private:
-  enum InternalState {
-    kIdle,       // The device driver is opened but camera is not in use.
-    kCapturing,  // Video is being captured.
-    kError       // Error accessing HW functions.
-                 // User needs to recover by destroying the object.
-  };
-
-  // Implements SinkFilterObserver.
-  void FrameReceived(const uint8_t* buffer,
-                     int length,
-                     base::TimeDelta timestamp) override;
-
-  bool CreateCapabilityMap();
-  void SetAntiFlickerInCaptureFilter(const VideoCaptureParams& params);
-  void SetErrorState(const tracked_objects::Location& from_here,
-                     const std::string& reason);
-
-  const Name device_name_;
-  InternalState state_;
-  std::unique_ptr<VideoCaptureDevice::Client> client_;
-
-  base::win::ScopedComPtr<IBaseFilter> capture_filter_;
-
-  base::win::ScopedComPtr<IGraphBuilder> graph_builder_;
-  base::win::ScopedComPtr<ICaptureGraphBuilder2> capture_graph_builder_;
-
-  base::win::ScopedComPtr<IMediaControl> media_control_;
-  base::win::ScopedComPtr<IPin> input_sink_pin_;
-  base::win::ScopedComPtr<IPin> output_capture_pin_;
-
-  scoped_refptr<SinkFilter> sink_filter_;
-
-  // Map of all capabilities this device support.
-  CapabilityList capabilities_;
-  VideoCaptureFormat capture_format_;
-
-  base::TimeTicks first_ref_time_;
-
-  base::ThreadChecker thread_checker_;
-
-  DISALLOW_IMPLICIT_CONSTRUCTORS(VideoCaptureDeviceWin);
-};
-
-}  // namespace media
-
-#endif  // MEDIA_CAPTURE_VIDEO_WIN_VIDEO_CAPTURE_DEVICE_WIN_H_