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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 // Linux specific implementation of VideoCaptureDevice. | 5 // Linux specific implementation of VideoCaptureDevice. |
6 // V4L2 is used for capturing. V4L2 does not provide its own thread for | 6 // V4L2 is used for capturing. V4L2 does not provide its own thread for |
7 // capturing so this implementation uses a Chromium thread for fetching frames | 7 // capturing so this implementation uses a Chromium thread for fetching frames |
8 // from V4L2. | 8 // from V4L2. |
9 | 9 |
10 #ifndef MEDIA_CAPTURE_VIDEO_LINUX_VIDEO_CAPTURE_DEVICE_LINUX_H_ | 10 #ifndef MEDIA_CAPTURE_VIDEO_LINUX_VIDEO_CAPTURE_DEVICE_LINUX_H_ |
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46 | 46 |
47 protected: | 47 protected: |
48 virtual void SetRotation(int rotation); | 48 virtual void SetRotation(int rotation); |
49 | 49 |
50 const VideoCaptureDeviceDescriptor device_descriptor_; | 50 const VideoCaptureDeviceDescriptor device_descriptor_; |
51 | 51 |
52 private: | 52 private: |
53 static int TranslatePowerLineFrequencyToV4L2(PowerLineFrequency frequency); | 53 static int TranslatePowerLineFrequencyToV4L2(PowerLineFrequency frequency); |
54 | 54 |
55 // Internal delegate doing the actual capture setting, buffer allocation and | 55 // Internal delegate doing the actual capture setting, buffer allocation and |
56 // circulation with the V4L2 API. Created and deleted in the thread where | 56 // circulation with the V4L2 API. Created in the thread where |
57 // VideoCaptureDeviceLinux lives but otherwise operating on |v4l2_thread_|. | 57 // VideoCaptureDeviceLinux lives but otherwise operating and deleted on |
58 scoped_refptr<V4L2CaptureDelegate> capture_impl_; | 58 // |v4l2_thread_|. |
| 59 std::unique_ptr<V4L2CaptureDelegate> capture_impl_; |
59 | 60 |
60 // Photo-related requests waiting for |v4l2_thread_| to be active. | 61 // Photo-related requests waiting for |v4l2_thread_| to be active. |
61 std::list<base::Closure> photo_requests_queue_; | 62 std::list<base::Closure> photo_requests_queue_; |
62 | 63 |
63 base::Thread v4l2_thread_; // Thread used for reading data from the device. | 64 base::Thread v4l2_thread_; // Thread used for reading data from the device. |
64 | 65 |
65 DISALLOW_IMPLICIT_CONSTRUCTORS(VideoCaptureDeviceLinux); | 66 DISALLOW_IMPLICIT_CONSTRUCTORS(VideoCaptureDeviceLinux); |
66 }; | 67 }; |
67 | 68 |
68 } // namespace media | 69 } // namespace media |
69 | 70 |
70 #endif // MEDIA_CAPTURE_VIDEO_LINUX_VIDEO_CAPTURE_DEVICE_LINUX_H_ | 71 #endif // MEDIA_CAPTURE_VIDEO_LINUX_VIDEO_CAPTURE_DEVICE_LINUX_H_ |
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