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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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45 | 45 |
46 // Returns true iff the current platform supports the Media Foundation API | 46 // Returns true iff the current platform supports the Media Foundation API |
47 // and that the DLLs are available. On Vista this API is an optional download | 47 // and that the DLLs are available. On Vista this API is an optional download |
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, |
| 56 VideoCaptureFormats* formats); |
| 57 |
55 // Captured a new video frame. | 58 // Captured a new video frame. |
56 void OnIncomingCapturedFrame(const uint8* data, | 59 void OnIncomingCapturedFrame(const uint8* data, |
57 int length, | 60 int length, |
58 const base::TimeTicks& time_stamp, | 61 const base::TimeTicks& time_stamp, |
59 int rotation); | 62 int rotation); |
60 | 63 |
61 private: | 64 private: |
62 void OnError(HRESULT hr); | 65 void OnError(HRESULT hr); |
63 | 66 |
64 Name name_; | 67 Name name_; |
65 base::win::ScopedComPtr<IMFActivate> device_; | 68 base::win::ScopedComPtr<IMFActivate> device_; |
66 scoped_refptr<MFReaderCallback> callback_; | 69 scoped_refptr<MFReaderCallback> callback_; |
67 | 70 |
68 base::Lock lock_; // Used to guard the below variables. | 71 base::Lock lock_; // Used to guard the below variables. |
69 scoped_ptr<VideoCaptureDevice::Client> client_; | 72 scoped_ptr<VideoCaptureDevice::Client> client_; |
70 base::win::ScopedComPtr<IMFSourceReader> reader_; | 73 base::win::ScopedComPtr<IMFSourceReader> reader_; |
71 VideoCaptureFormat capture_format_; | 74 VideoCaptureFormat capture_format_; |
72 bool capture_; | 75 bool capture_; |
73 | 76 |
74 DISALLOW_IMPLICIT_CONSTRUCTORS(VideoCaptureDeviceMFWin); | 77 DISALLOW_IMPLICIT_CONSTRUCTORS(VideoCaptureDeviceMFWin); |
75 }; | 78 }; |
76 | 79 |
77 } // namespace media | 80 } // namespace media |
78 | 81 |
79 #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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