OLD | NEW |
1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // Windows specific implementation of VideoCaptureDevice. DirectShow is used for | 5 // Windows specific implementation of VideoCaptureDevice. DirectShow is used for |
6 // capturing. DirectShow provide its own threads for capturing. | 6 // capturing. DirectShow provide its own threads for capturing. |
7 | 7 |
8 #ifndef MEDIA_CAPTURE_VIDEO_WIN_VIDEO_CAPTURE_DEVICE_WIN_H_ | 8 #ifndef MEDIA_CAPTURE_VIDEO_WIN_VIDEO_CAPTURE_DEVICE_WIN_H_ |
9 #define MEDIA_CAPTURE_VIDEO_WIN_VIDEO_CAPTURE_DEVICE_WIN_H_ | 9 #define MEDIA_CAPTURE_VIDEO_WIN_VIDEO_CAPTURE_DEVICE_WIN_H_ |
10 | 10 |
(...skipping 46 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
57 | 57 |
58 static HRESULT GetDeviceFilter(const std::string& device_id, | 58 static HRESULT GetDeviceFilter(const std::string& device_id, |
59 IBaseFilter** filter); | 59 IBaseFilter** filter); |
60 static base::win::ScopedComPtr<IPin> GetPin(IBaseFilter* filter, | 60 static base::win::ScopedComPtr<IPin> GetPin(IBaseFilter* filter, |
61 PIN_DIRECTION pin_dir, | 61 PIN_DIRECTION pin_dir, |
62 REFGUID category, | 62 REFGUID category, |
63 REFGUID major_type); | 63 REFGUID major_type); |
64 static VideoPixelFormat TranslateMediaSubtypeToPixelFormat( | 64 static VideoPixelFormat TranslateMediaSubtypeToPixelFormat( |
65 const GUID& sub_type); | 65 const GUID& sub_type); |
66 | 66 |
67 explicit VideoCaptureDeviceWin(const Name& device_name); | 67 explicit VideoCaptureDeviceWin( |
| 68 const VideoCaptureDeviceDescriptor& device_descriptor); |
68 ~VideoCaptureDeviceWin() override; | 69 ~VideoCaptureDeviceWin() override; |
69 // Opens the device driver for this device. | 70 // Opens the device driver for this device. |
70 bool Init(); | 71 bool Init(); |
71 | 72 |
72 // VideoCaptureDevice implementation. | 73 // VideoCaptureDevice implementation. |
73 void AllocateAndStart( | 74 void AllocateAndStart( |
74 const VideoCaptureParams& params, | 75 const VideoCaptureParams& params, |
75 std::unique_ptr<VideoCaptureDevice::Client> client) override; | 76 std::unique_ptr<VideoCaptureDevice::Client> client) override; |
76 void StopAndDeAllocate() override; | 77 void StopAndDeAllocate() override; |
77 | 78 |
78 private: | 79 private: |
79 enum InternalState { | 80 enum InternalState { |
80 kIdle, // The device driver is opened but camera is not in use. | 81 kIdle, // The device driver is opened but camera is not in use. |
81 kCapturing, // Video is being captured. | 82 kCapturing, // Video is being captured. |
82 kError // Error accessing HW functions. | 83 kError // Error accessing HW functions. |
83 // User needs to recover by destroying the object. | 84 // User needs to recover by destroying the object. |
84 }; | 85 }; |
85 | 86 |
86 // Implements SinkFilterObserver. | 87 // Implements SinkFilterObserver. |
87 void FrameReceived(const uint8_t* buffer, | 88 void FrameReceived(const uint8_t* buffer, |
88 int length, | 89 int length, |
89 base::TimeDelta timestamp) override; | 90 base::TimeDelta timestamp) override; |
90 | 91 |
91 bool CreateCapabilityMap(); | 92 bool CreateCapabilityMap(); |
92 void SetAntiFlickerInCaptureFilter(const VideoCaptureParams& params); | 93 void SetAntiFlickerInCaptureFilter(const VideoCaptureParams& params); |
93 void SetErrorState(const tracked_objects::Location& from_here, | 94 void SetErrorState(const tracked_objects::Location& from_here, |
94 const std::string& reason); | 95 const std::string& reason); |
95 | 96 |
96 const Name device_name_; | 97 const VideoCaptureDeviceDescriptor device_descriptor_; |
97 InternalState state_; | 98 InternalState state_; |
98 std::unique_ptr<VideoCaptureDevice::Client> client_; | 99 std::unique_ptr<VideoCaptureDevice::Client> client_; |
99 | 100 |
100 base::win::ScopedComPtr<IBaseFilter> capture_filter_; | 101 base::win::ScopedComPtr<IBaseFilter> capture_filter_; |
101 | 102 |
102 base::win::ScopedComPtr<IGraphBuilder> graph_builder_; | 103 base::win::ScopedComPtr<IGraphBuilder> graph_builder_; |
103 base::win::ScopedComPtr<ICaptureGraphBuilder2> capture_graph_builder_; | 104 base::win::ScopedComPtr<ICaptureGraphBuilder2> capture_graph_builder_; |
104 | 105 |
105 base::win::ScopedComPtr<IMediaControl> media_control_; | 106 base::win::ScopedComPtr<IMediaControl> media_control_; |
106 base::win::ScopedComPtr<IPin> input_sink_pin_; | 107 base::win::ScopedComPtr<IPin> input_sink_pin_; |
107 base::win::ScopedComPtr<IPin> output_capture_pin_; | 108 base::win::ScopedComPtr<IPin> output_capture_pin_; |
108 | 109 |
109 scoped_refptr<SinkFilter> sink_filter_; | 110 scoped_refptr<SinkFilter> sink_filter_; |
110 | 111 |
111 // Map of all capabilities this device support. | 112 // Map of all capabilities this device support. |
112 CapabilityList capabilities_; | 113 CapabilityList capabilities_; |
113 VideoCaptureFormat capture_format_; | 114 VideoCaptureFormat capture_format_; |
114 | 115 |
115 base::TimeTicks first_ref_time_; | 116 base::TimeTicks first_ref_time_; |
116 | 117 |
117 base::ThreadChecker thread_checker_; | 118 base::ThreadChecker thread_checker_; |
118 | 119 |
119 DISALLOW_IMPLICIT_CONSTRUCTORS(VideoCaptureDeviceWin); | 120 DISALLOW_IMPLICIT_CONSTRUCTORS(VideoCaptureDeviceWin); |
120 }; | 121 }; |
121 | 122 |
122 } // namespace media | 123 } // namespace media |
123 | 124 |
124 #endif // MEDIA_CAPTURE_VIDEO_WIN_VIDEO_CAPTURE_DEVICE_WIN_H_ | 125 #endif // MEDIA_CAPTURE_VIDEO_WIN_VIDEO_CAPTURE_DEVICE_WIN_H_ |
OLD | NEW |