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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 // Implementation of a fake VideoCaptureDevice class. Used for testing other | 5 // Implementation of a fake VideoCaptureDevice class. Used for testing other |
6 // video capture classes when no real hardware is available. | 6 // video capture classes when no real hardware is available. |
7 | 7 |
8 #ifndef MEDIA_CAPTURE_VIDEO_FAKE_VIDEO_CAPTURE_DEVICE_H_ | 8 #ifndef MEDIA_CAPTURE_VIDEO_FAKE_VIDEO_CAPTURE_DEVICE_H_ |
9 #define MEDIA_CAPTURE_VIDEO_FAKE_VIDEO_CAPTURE_DEVICE_H_ | 9 #define MEDIA_CAPTURE_VIDEO_FAKE_VIDEO_CAPTURE_DEVICE_H_ |
10 | 10 |
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23 namespace media { | 23 namespace media { |
24 | 24 |
25 class CAPTURE_EXPORT FakeVideoCaptureDevice : public VideoCaptureDevice { | 25 class CAPTURE_EXPORT FakeVideoCaptureDevice : public VideoCaptureDevice { |
26 public: | 26 public: |
27 enum class BufferOwnership { | 27 enum class BufferOwnership { |
28 OWN_BUFFERS, | 28 OWN_BUFFERS, |
29 CLIENT_BUFFERS, | 29 CLIENT_BUFFERS, |
30 }; | 30 }; |
31 | 31 |
32 FakeVideoCaptureDevice(BufferOwnership buffer_ownership, | 32 FakeVideoCaptureDevice(BufferOwnership buffer_ownership, |
33 float fake_capture_rate); | 33 float fake_capture_rate, |
| 34 VideoPixelFormat pixel_format = PIXEL_FORMAT_I420); |
34 ~FakeVideoCaptureDevice() override; | 35 ~FakeVideoCaptureDevice() override; |
35 | 36 |
36 // VideoCaptureDevice implementation. | 37 // VideoCaptureDevice implementation. |
37 void AllocateAndStart(const VideoCaptureParams& params, | 38 void AllocateAndStart(const VideoCaptureParams& params, |
38 std::unique_ptr<Client> client) override; | 39 std::unique_ptr<Client> client) override; |
39 void StopAndDeAllocate() override; | 40 void StopAndDeAllocate() override; |
40 void GetPhotoCapabilities(GetPhotoCapabilitiesCallback callback) override; | 41 void GetPhotoCapabilities(GetPhotoCapabilitiesCallback callback) override; |
41 void SetPhotoOptions(mojom::PhotoSettingsPtr settings, | 42 void SetPhotoOptions(mojom::PhotoSettingsPtr settings, |
42 SetPhotoOptionsCallback callback) override; | 43 SetPhotoOptionsCallback callback) override; |
43 void TakePhoto(TakePhotoCallback callback) override; | 44 void TakePhoto(TakePhotoCallback callback) override; |
44 | 45 |
45 private: | 46 private: |
46 void CaptureUsingOwnBuffers(base::TimeTicks expected_execution_time); | 47 void CaptureUsingOwnBuffers(base::TimeTicks expected_execution_time); |
47 void CaptureUsingClientBuffers(base::TimeTicks expected_execution_time); | 48 void CaptureUsingClientBuffers(base::TimeTicks expected_execution_time); |
48 void BeepAndScheduleNextCapture( | 49 void BeepAndScheduleNextCapture( |
49 base::TimeTicks expected_execution_time, | 50 base::TimeTicks expected_execution_time, |
50 const base::Callback<void(base::TimeTicks)>& next_capture); | 51 const base::Callback<void(base::TimeTicks)>& next_capture); |
51 | 52 |
52 // |thread_checker_| is used to check that all methods are called in the | 53 // |thread_checker_| is used to check that all methods are called in the |
53 // correct thread that owns the object. | 54 // correct thread that owns the object. |
54 base::ThreadChecker thread_checker_; | 55 base::ThreadChecker thread_checker_; |
55 | 56 |
56 const BufferOwnership buffer_ownership_; | 57 const BufferOwnership buffer_ownership_; |
57 // Frame rate of the fake video device. | 58 // Frame rate of the fake video device. |
58 const float fake_capture_rate_; | 59 const float fake_capture_rate_; |
| 60 // Pixel format of all device streams. |
| 61 const VideoPixelFormat pixel_format_; |
59 | 62 |
60 std::unique_ptr<VideoCaptureDevice::Client> client_; | 63 std::unique_ptr<VideoCaptureDevice::Client> client_; |
61 // |fake_frame_| is used for capturing on Own Buffers. | 64 // |fake_frame_| is used for capturing on Own Buffers. |
62 std::unique_ptr<uint8_t[]> fake_frame_; | 65 std::unique_ptr<uint8_t[]> fake_frame_; |
63 // Time when the next beep occurs. | 66 // Time when the next beep occurs. |
64 base::TimeDelta beep_time_; | 67 base::TimeDelta beep_time_; |
65 // Time since the fake video started rendering frames. | 68 // Time since the fake video started rendering frames. |
66 base::TimeDelta elapsed_time_; | 69 base::TimeDelta elapsed_time_; |
67 VideoCaptureFormat capture_format_; | 70 VideoCaptureFormat capture_format_; |
68 | 71 |
69 uint32_t current_zoom_; | 72 uint32_t current_zoom_; |
70 | 73 |
71 // The system time when we receive the first frame. | 74 // The system time when we receive the first frame. |
72 base::TimeTicks first_ref_time_; | 75 base::TimeTicks first_ref_time_; |
73 // FakeVideoCaptureDevice post tasks to itself for frame construction and | 76 // FakeVideoCaptureDevice post tasks to itself for frame construction and |
74 // needs to deal with asynchronous StopAndDeallocate(). | 77 // needs to deal with asynchronous StopAndDeallocate(). |
75 base::WeakPtrFactory<FakeVideoCaptureDevice> weak_factory_; | 78 base::WeakPtrFactory<FakeVideoCaptureDevice> weak_factory_; |
76 | 79 |
77 DISALLOW_COPY_AND_ASSIGN(FakeVideoCaptureDevice); | 80 DISALLOW_COPY_AND_ASSIGN(FakeVideoCaptureDevice); |
78 }; | 81 }; |
79 | 82 |
80 } // namespace media | 83 } // namespace media |
81 | 84 |
82 #endif // MEDIA_CAPTURE_VIDEO_FAKE_VIDEO_CAPTURE_DEVICE_H_ | 85 #endif // MEDIA_CAPTURE_VIDEO_FAKE_VIDEO_CAPTURE_DEVICE_H_ |
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