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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_VIDEO_CAPTURE_LINUX_VIDEO_CAPTURE_DEVICE_LINUX_H_ | 10 #ifndef MEDIA_VIDEO_CAPTURE_LINUX_VIDEO_CAPTURE_DEVICE_LINUX_H_ |
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24 public: | 24 public: |
25 static VideoPixelFormat V4l2ColorToVideoCaptureColorFormat(int32 v4l2_fourcc); | 25 static VideoPixelFormat V4l2ColorToVideoCaptureColorFormat(int32 v4l2_fourcc); |
26 static void GetListOfUsableFourCCs(bool favour_mjpeg, | 26 static void GetListOfUsableFourCCs(bool favour_mjpeg, |
27 std::list<int>* fourccs); | 27 std::list<int>* fourccs); |
28 | 28 |
29 explicit VideoCaptureDeviceLinux(const Name& device_name); | 29 explicit VideoCaptureDeviceLinux(const Name& device_name); |
30 virtual ~VideoCaptureDeviceLinux(); | 30 virtual ~VideoCaptureDeviceLinux(); |
31 | 31 |
32 // VideoCaptureDevice implementation. | 32 // VideoCaptureDevice implementation. |
33 virtual void AllocateAndStart(const VideoCaptureParams& params, | 33 virtual void AllocateAndStart(const VideoCaptureParams& params, |
34 scoped_ptr<Client> client) OVERRIDE; | 34 scoped_ptr<Client> client) override; |
35 | 35 |
36 virtual void StopAndDeAllocate() OVERRIDE; | 36 virtual void StopAndDeAllocate() override; |
37 | 37 |
38 protected: | 38 protected: |
39 void SetRotation(int rotation); | 39 void SetRotation(int rotation); |
40 | 40 |
41 // Once |v4l2_thread_| is started, only called on that thread. | 41 // Once |v4l2_thread_| is started, only called on that thread. |
42 void SetRotationOnV4L2Thread(int rotation); | 42 void SetRotationOnV4L2Thread(int rotation); |
43 | 43 |
44 private: | 44 private: |
45 enum InternalState { | 45 enum InternalState { |
46 kIdle, // The device driver is opened but camera is not in use. | 46 kIdle, // The device driver is opened but camera is not in use. |
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82 // This is only used on |v4l2_thread_| when it is running, or the constructor | 82 // This is only used on |v4l2_thread_| when it is running, or the constructor |
83 // thread otherwise. | 83 // thread otherwise. |
84 int rotation_; | 84 int rotation_; |
85 | 85 |
86 DISALLOW_IMPLICIT_CONSTRUCTORS(VideoCaptureDeviceLinux); | 86 DISALLOW_IMPLICIT_CONSTRUCTORS(VideoCaptureDeviceLinux); |
87 }; | 87 }; |
88 | 88 |
89 } // namespace media | 89 } // namespace media |
90 | 90 |
91 #endif // MEDIA_VIDEO_CAPTURE_LINUX_VIDEO_CAPTURE_DEVICE_LINUX_H_ | 91 #endif // MEDIA_VIDEO_CAPTURE_LINUX_VIDEO_CAPTURE_DEVICE_LINUX_H_ |
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