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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_MF_WIN_H_ | 9 #ifndef MEDIA_VIDEO_CAPTURE_WIN_VIDEO_CAPTURE_DEVICE_MF_WIN_H_ |
| 10 #define MEDIA_VIDEO_CAPTURE_WIN_VIDEO_CAPTURE_DEVICE_MF_WIN_H_ | 10 #define MEDIA_VIDEO_CAPTURE_WIN_VIDEO_CAPTURE_DEVICE_MF_WIN_H_ |
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| 48 // but the API is advertised as a part of Windows 7 and onwards. However, | 48 // but the API is advertised as a part of Windows 7 and onwards. However, |
| 49 // we've seen that the required DLLs are not available in some Win7 | 49 // we've seen that the required DLLs are not available in some Win7 |
| 50 // distributions such as Windows 7 N and Windows 7 KN. | 50 // distributions such as Windows 7 N and Windows 7 KN. |
| 51 static bool PlatformSupported(); | 51 static bool PlatformSupported(); |
| 52 | 52 |
| 53 static void GetDeviceNames(Names* device_names); | 53 static void GetDeviceNames(Names* device_names); |
| 54 | 54 |
| 55 static void GetDeviceSupportedFormats(const Name& device, | 55 static void GetDeviceSupportedFormats(const Name& device, |
| 56 VideoCaptureFormats* formats); | 56 VideoCaptureFormats* formats); |
| 57 | 57 |
| 58 // Captured a new video frame. | 58 // Captured new video data. |
| 59 void OnIncomingCapturedFrame(const uint8* data, | 59 void OnIncomingCapturedData(const uint8* data, |
| 60 int length, | 60 int length, |
| 61 const base::TimeTicks& time_stamp, | 61 int rotation, |
| 62 int rotation); | 62 const base::TimeTicks& time_stamp); |
| 63 | 63 |
| 64 private: | 64 private: |
| 65 void OnError(HRESULT hr); | 65 void OnError(HRESULT hr); |
| 66 | 66 |
| 67 Name name_; | 67 Name name_; |
| 68 base::win::ScopedComPtr<IMFActivate> device_; | 68 base::win::ScopedComPtr<IMFActivate> device_; |
| 69 scoped_refptr<MFReaderCallback> callback_; | 69 scoped_refptr<MFReaderCallback> callback_; |
| 70 | 70 |
| 71 base::Lock lock_; // Used to guard the below variables. | 71 base::Lock lock_; // Used to guard the below variables. |
| 72 scoped_ptr<VideoCaptureDevice::Client> client_; | 72 scoped_ptr<VideoCaptureDevice::Client> client_; |
| 73 base::win::ScopedComPtr<IMFSourceReader> reader_; | 73 base::win::ScopedComPtr<IMFSourceReader> reader_; |
| 74 VideoCaptureFormat capture_format_; | 74 VideoCaptureFormat capture_format_; |
| 75 bool capture_; | 75 bool capture_; |
| 76 | 76 |
| 77 DISALLOW_IMPLICIT_CONSTRUCTORS(VideoCaptureDeviceMFWin); | 77 DISALLOW_IMPLICIT_CONSTRUCTORS(VideoCaptureDeviceMFWin); |
| 78 }; | 78 }; |
| 79 | 79 |
| 80 } // namespace media | 80 } // namespace media |
| 81 | 81 |
| 82 #endif // MEDIA_VIDEO_CAPTURE_WIN_VIDEO_CAPTURE_DEVICE_MF_WIN_H_ | 82 #endif // MEDIA_VIDEO_CAPTURE_WIN_VIDEO_CAPTURE_DEVICE_MF_WIN_H_ |
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