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| 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. | 5 // Windows specific implementation of VideoCaptureDevice. |
| 6 // DirectShow is used for capturing. DirectShow provide its own threads | 6 // DirectShow is used for capturing. DirectShow provide its own threads |
| 7 // for capturing. | 7 // for capturing. |
| 8 | 8 |
| 9 #ifndef MEDIA_VIDEO_CAPTURE_WIN_VIDEO_CAPTURE_DEVICE_WIN_H_ | 9 #ifndef MEDIA_VIDEO_CAPTURE_WIN_VIDEO_CAPTURE_DEVICE_WIN_H_ |
| 10 #define MEDIA_VIDEO_CAPTURE_WIN_VIDEO_CAPTURE_DEVICE_WIN_H_ | 10 #define MEDIA_VIDEO_CAPTURE_WIN_VIDEO_CAPTURE_DEVICE_WIN_H_ |
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| 64 const GUID& sub_type); | 64 const GUID& sub_type); |
| 65 | 65 |
| 66 explicit VideoCaptureDeviceWin(const Name& device_name); | 66 explicit VideoCaptureDeviceWin(const Name& device_name); |
| 67 virtual ~VideoCaptureDeviceWin(); | 67 virtual ~VideoCaptureDeviceWin(); |
| 68 // Opens the device driver for this device. | 68 // Opens the device driver for this device. |
| 69 bool Init(); | 69 bool Init(); |
| 70 | 70 |
| 71 // VideoCaptureDevice implementation. | 71 // VideoCaptureDevice implementation. |
| 72 virtual void AllocateAndStart( | 72 virtual void AllocateAndStart( |
| 73 const VideoCaptureParams& params, | 73 const VideoCaptureParams& params, |
| 74 scoped_ptr<VideoCaptureDevice::Client> client) OVERRIDE; | 74 scoped_ptr<VideoCaptureDevice::Client> client) override; |
| 75 virtual void StopAndDeAllocate() OVERRIDE; | 75 virtual void StopAndDeAllocate() override; |
| 76 | 76 |
| 77 private: | 77 private: |
| 78 enum InternalState { | 78 enum InternalState { |
| 79 kIdle, // The device driver is opened but camera is not in use. | 79 kIdle, // The device driver is opened but camera is not in use. |
| 80 kCapturing, // Video is being captured. | 80 kCapturing, // Video is being captured. |
| 81 kError // Error accessing HW functions. | 81 kError // Error accessing HW functions. |
| 82 // User needs to recover by destroying the object. | 82 // User needs to recover by destroying the object. |
| 83 }; | 83 }; |
| 84 | 84 |
| 85 // Implements SinkFilterObserver. | 85 // Implements SinkFilterObserver. |
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| 115 // Map of all capabilities this device support. | 115 // Map of all capabilities this device support. |
| 116 CapabilityList capabilities_; | 116 CapabilityList capabilities_; |
| 117 VideoCaptureFormat capture_format_; | 117 VideoCaptureFormat capture_format_; |
| 118 | 118 |
| 119 DISALLOW_IMPLICIT_CONSTRUCTORS(VideoCaptureDeviceWin); | 119 DISALLOW_IMPLICIT_CONSTRUCTORS(VideoCaptureDeviceWin); |
| 120 }; | 120 }; |
| 121 | 121 |
| 122 } // namespace media | 122 } // namespace media |
| 123 | 123 |
| 124 #endif // MEDIA_VIDEO_CAPTURE_WIN_VIDEO_CAPTURE_DEVICE_WIN_H_ | 124 #endif // MEDIA_VIDEO_CAPTURE_WIN_VIDEO_CAPTURE_DEVICE_WIN_H_ |
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