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Side by Side Diff: media/capture/video/fake_video_capture_device.h

Issue 1685713003: Remove V4L2CaptureDelegate{Single,Multi}Plane, VCD::Client::OnIncomingCapturedYuvData() (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: perkj@ comments and reverted change to WeakPtr Created 4 years, 10 months ago
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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_VIDEO_CAPTURE_FAKE_VIDEO_CAPTURE_DEVICE_H_ 8 #ifndef MEDIA_VIDEO_CAPTURE_FAKE_VIDEO_CAPTURE_DEVICE_H_
9 #define MEDIA_VIDEO_CAPTURE_FAKE_VIDEO_CAPTURE_DEVICE_H_ 9 #define MEDIA_VIDEO_CAPTURE_FAKE_VIDEO_CAPTURE_DEVICE_H_
10 10
11 #include <stdint.h> 11 #include <stdint.h>
12 12
13 #include <string> 13 #include <string>
14 14
15 #include "base/atomicops.h" 15 #include "base/atomicops.h"
16 #include "base/macros.h" 16 #include "base/macros.h"
17 #include "base/memory/scoped_ptr.h" 17 #include "base/memory/scoped_ptr.h"
18 #include "base/memory/weak_ptr.h" 18 #include "base/memory/weak_ptr.h"
19 #include "base/threading/thread.h"
20 #include "base/threading/thread_checker.h" 19 #include "base/threading/thread_checker.h"
21 #include "base/time/time.h" 20 #include "base/time/time.h"
22 #include "media/capture/video/video_capture_device.h" 21 #include "media/capture/video/video_capture_device.h"
23 22
24 namespace media { 23 namespace media {
25 24
26 class MEDIA_EXPORT FakeVideoCaptureDevice : public VideoCaptureDevice { 25 class MEDIA_EXPORT FakeVideoCaptureDevice : public VideoCaptureDevice {
27 public: 26 public:
28 enum class BufferOwnership { 27 enum class BufferOwnership {
29 OWN_BUFFERS, 28 OWN_BUFFERS,
30 CLIENT_BUFFERS, 29 CLIENT_BUFFERS,
31 }; 30 };
32 31
33 enum class BufferPlanarity {
34 PACKED,
35 TRIPLANAR,
36 };
37
38 FakeVideoCaptureDevice(BufferOwnership buffer_ownership, 32 FakeVideoCaptureDevice(BufferOwnership buffer_ownership,
39 BufferPlanarity planarity);
40 FakeVideoCaptureDevice(BufferOwnership buffer_ownership,
41 BufferPlanarity planarity,
42 float fake_capture_rate); 33 float fake_capture_rate);
43 ~FakeVideoCaptureDevice() override; 34 ~FakeVideoCaptureDevice() override;
44 35
45 // VideoCaptureDevice implementation. 36 // VideoCaptureDevice implementation.
46 void AllocateAndStart(const VideoCaptureParams& params, 37 void AllocateAndStart(const VideoCaptureParams& params,
47 scoped_ptr<Client> client) override; 38 scoped_ptr<Client> client) override;
48 void StopAndDeAllocate() override; 39 void StopAndDeAllocate() override;
49 40
50 private: 41 private:
51 void CaptureUsingOwnBuffers(base::TimeTicks expected_execution_time); 42 void CaptureUsingOwnBuffers(base::TimeTicks expected_execution_time);
52 void CaptureUsingClientBuffers(base::TimeTicks expected_execution_time); 43 void CaptureUsingClientBuffers(base::TimeTicks expected_execution_time);
53 void BeepAndScheduleNextCapture( 44 void BeepAndScheduleNextCapture(
54 base::TimeTicks expected_execution_time, 45 base::TimeTicks expected_execution_time,
55 const base::Callback<void(base::TimeTicks)>& next_capture); 46 const base::Callback<void(base::TimeTicks)>& next_capture);
56 47
57 // |thread_checker_| is used to check that all methods are called in the 48 // |thread_checker_| is used to check that all methods are called in the
58 // correct thread that owns the object. 49 // correct thread that owns the object.
59 base::ThreadChecker thread_checker_; 50 base::ThreadChecker thread_checker_;
60 51
61 const BufferOwnership buffer_ownership_; 52 const BufferOwnership buffer_ownership_;
62 const BufferPlanarity planarity_;
63 // Frame rate of the fake video device. 53 // Frame rate of the fake video device.
64 const float fake_capture_rate_; 54 const float fake_capture_rate_;
65 55
66 scoped_ptr<VideoCaptureDevice::Client> client_; 56 scoped_ptr<VideoCaptureDevice::Client> client_;
67 // |fake_frame_| is used for capturing on Own Buffers. 57 // |fake_frame_| is used for capturing on Own Buffers.
68 scoped_ptr<uint8_t[]> fake_frame_; 58 scoped_ptr<uint8_t[]> fake_frame_;
69 // Time when the next beep occurs. 59 // Time when the next beep occurs.
70 base::TimeDelta beep_time_; 60 base::TimeDelta beep_time_;
71 // Time since the fake video started rendering frames. 61 // Time since the fake video started rendering frames.
72 base::TimeDelta elapsed_time_; 62 base::TimeDelta elapsed_time_;
73 VideoCaptureFormat capture_format_; 63 VideoCaptureFormat capture_format_;
74 64
75 // FakeVideoCaptureDevice post tasks to itself for frame construction and 65 // FakeVideoCaptureDevice post tasks to itself for frame construction and
76 // needs to deal with asynchronous StopAndDeallocate(). 66 // needs to deal with asynchronous StopAndDeallocate().
77 base::WeakPtrFactory<FakeVideoCaptureDevice> weak_factory_; 67 base::WeakPtrFactory<FakeVideoCaptureDevice> weak_factory_;
78 68
79 DISALLOW_COPY_AND_ASSIGN(FakeVideoCaptureDevice); 69 DISALLOW_COPY_AND_ASSIGN(FakeVideoCaptureDevice);
80 }; 70 };
81 71
82 } // namespace media 72 } // namespace media
83 73
84 #endif // MEDIA_VIDEO_CAPTURE_FAKE_VIDEO_CAPTURE_DEVICE_H_ 74 #endif // MEDIA_VIDEO_CAPTURE_FAKE_VIDEO_CAPTURE_DEVICE_H_
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