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1 // Copyright 2013 The Chromium Authors. All rights reserved. | 1 // Copyright 2013 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 #ifndef MEDIA_VIDEO_CAPTURE_FILE_VIDEO_CAPTURE_DEVICE_H_ | 5 #ifndef MEDIA_VIDEO_CAPTURE_FILE_VIDEO_CAPTURE_DEVICE_H_ |
6 #define MEDIA_VIDEO_CAPTURE_FILE_VIDEO_CAPTURE_DEVICE_H_ | 6 #define MEDIA_VIDEO_CAPTURE_FILE_VIDEO_CAPTURE_DEVICE_H_ |
7 | 7 |
8 #include <string> | 8 #include <string> |
9 | 9 |
10 #include "base/files/file.h" | 10 #include "base/files/file.h" |
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31 static base::File OpenFileForRead(const base::FilePath& file_path); | 31 static base::File OpenFileForRead(const base::FilePath& file_path); |
32 | 32 |
33 // Constructor of the class, with a fully qualified file path as input, which | 33 // Constructor of the class, with a fully qualified file path as input, which |
34 // represents the Y4M video file to stream repeatedly. | 34 // represents the Y4M video file to stream repeatedly. |
35 explicit FileVideoCaptureDevice(const base::FilePath& file_path); | 35 explicit FileVideoCaptureDevice(const base::FilePath& file_path); |
36 | 36 |
37 // VideoCaptureDevice implementation, class methods. | 37 // VideoCaptureDevice implementation, class methods. |
38 virtual ~FileVideoCaptureDevice(); | 38 virtual ~FileVideoCaptureDevice(); |
39 virtual void AllocateAndStart( | 39 virtual void AllocateAndStart( |
40 const VideoCaptureParams& params, | 40 const VideoCaptureParams& params, |
41 scoped_ptr<VideoCaptureDevice::Client> client) OVERRIDE; | 41 scoped_ptr<VideoCaptureDevice::Client> client) override; |
42 virtual void StopAndDeAllocate() OVERRIDE; | 42 virtual void StopAndDeAllocate() override; |
43 | 43 |
44 private: | 44 private: |
45 // Returns size in bytes of an I420 frame, not including possible paddings, | 45 // Returns size in bytes of an I420 frame, not including possible paddings, |
46 // defined by |capture_format_|. | 46 // defined by |capture_format_|. |
47 int CalculateFrameSize(); | 47 int CalculateFrameSize(); |
48 | 48 |
49 // Called on the |capture_thread_|. | 49 // Called on the |capture_thread_|. |
50 void OnAllocateAndStart(const VideoCaptureParams& params, | 50 void OnAllocateAndStart(const VideoCaptureParams& params, |
51 scoped_ptr<Client> client); | 51 scoped_ptr<Client> client); |
52 void OnStopAndDeAllocate(); | 52 void OnStopAndDeAllocate(); |
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68 int frame_size_; | 68 int frame_size_; |
69 int64 current_byte_index_; | 69 int64 current_byte_index_; |
70 int64 first_frame_byte_index_; | 70 int64 first_frame_byte_index_; |
71 | 71 |
72 DISALLOW_COPY_AND_ASSIGN(FileVideoCaptureDevice); | 72 DISALLOW_COPY_AND_ASSIGN(FileVideoCaptureDevice); |
73 }; | 73 }; |
74 | 74 |
75 } // namespace media | 75 } // namespace media |
76 | 76 |
77 #endif // MEDIA_VIDEO_CAPTURE_FILE_VIDEO_CAPTURE_DEVICE_H_ | 77 #endif // MEDIA_VIDEO_CAPTURE_FILE_VIDEO_CAPTURE_DEVICE_H_ |
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