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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 |
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| 22 virtual ~FakeVideoCaptureDevice(); | 22 virtual ~FakeVideoCaptureDevice(); |
| 23 // Used for testing. This will make sure the next call to Create will | 23 // Used for testing. This will make sure the next call to Create will |
| 24 // return NULL; | 24 // return NULL; |
| 25 static void SetFailNextCreate(); | 25 static void SetFailNextCreate(); |
| 26 | 26 |
| 27 static void GetDeviceNames(Names* device_names); | 27 static void GetDeviceNames(Names* device_names); |
| 28 static void GetDeviceSupportedFormats(const Name& device, | 28 static void GetDeviceSupportedFormats(const Name& device, |
| 29 VideoCaptureCapabilities* formats); | 29 VideoCaptureCapabilities* formats); |
| 30 | 30 |
| 31 // VideoCaptureDevice implementation. | 31 // VideoCaptureDevice implementation. |
| 32 virtual void AllocateAndStart( | 32 virtual void AllocateAndStart(const VideoCaptureParams& params, |
| 33 const VideoCaptureCapability& capture_format, | 33 scoped_ptr<VideoCaptureDevice::Client> client) |
| 34 scoped_ptr<VideoCaptureDevice::Client> client) OVERRIDE; | 34 OVERRIDE; |
| 35 virtual void StopAndDeAllocate() OVERRIDE; | 35 virtual void StopAndDeAllocate() OVERRIDE; |
| 36 | 36 |
| 37 private: | 37 private: |
| 38 // Flag indicating the internal state. | 38 // Flag indicating the internal state. |
| 39 enum InternalState { | 39 enum InternalState { |
| 40 kIdle, | 40 kIdle, |
| 41 kCapturing, | 41 kCapturing, |
| 42 kError | 42 kError |
| 43 }; | 43 }; |
| 44 FakeVideoCaptureDevice(); | 44 FakeVideoCaptureDevice(); |
| 45 | 45 |
| 46 // Called on the capture_thread_. | 46 // Called on the capture_thread_. |
| 47 void OnCaptureTask(); | 47 void OnCaptureTask(); |
| 48 | 48 |
| 49 // EXPERIMENTAL, similar to allocate, but changes resolution and calls | 49 // EXPERIMENTAL, similar to allocate, but changes resolution and calls |
| 50 // client->OnFrameInfoChanged(VideoCaptureCapability&) | 50 // client->OnFrameInfoChanged(VideoCaptureCapability&) |
| 51 void Reallocate(); | 51 void Reallocate(); |
| 52 void PopulateCapabilitiesRoster(); | 52 void PopulateFormatRoster(); |
| 53 | 53 |
| 54 scoped_ptr<VideoCaptureDevice::Client> client_; | 54 scoped_ptr<VideoCaptureDevice::Client> client_; |
| 55 InternalState state_; | 55 InternalState state_; |
| 56 base::Thread capture_thread_; | 56 base::Thread capture_thread_; |
| 57 scoped_ptr<uint8[]> fake_frame_; | 57 scoped_ptr<uint8[]> fake_frame_; |
| 58 int frame_count_; | 58 int frame_count_; |
| 59 VideoCaptureCapability capture_format_; | 59 VideoCaptureFormat capture_format_; |
| 60 | 60 |
| 61 // When the device is configured as mutating video captures, this vector | 61 // When the device is configured as mutating video captures, this vector |
| 62 // holds the available ones which are used in sequence, restarting at the end. | 62 // holds the available ones which are used in sequence, restarting at the end. |
| 63 std::vector<VideoCaptureCapability> capabilities_roster_; | 63 std::vector<VideoCaptureFormat> format_roster_; |
| 64 int capabilities_roster_index_; | 64 int format_roster_index_; |
| 65 | 65 |
| 66 static bool fail_next_create_; | 66 static bool fail_next_create_; |
| 67 | 67 |
| 68 DISALLOW_COPY_AND_ASSIGN(FakeVideoCaptureDevice); | 68 DISALLOW_COPY_AND_ASSIGN(FakeVideoCaptureDevice); |
| 69 }; | 69 }; |
| 70 | 70 |
| 71 } // namespace media | 71 } // namespace media |
| 72 | 72 |
| 73 #endif // MEDIA_VIDEO_CAPTURE_FAKE_VIDEO_CAPTURE_DEVICE_H_ | 73 #endif // MEDIA_VIDEO_CAPTURE_FAKE_VIDEO_CAPTURE_DEVICE_H_ |
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